gperftools-2.4/0000755000000000000000000000000012454304761010520 500000000000000gperftools-2.4/doc/0000755000000000000000000000000012454304761011265 500000000000000gperftools-2.4/doc/pprof.10000644000000000000000000000542412372001603012406 00000000000000.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.23. .TH PPROF "1" "February 2005" "pprof (part of gperftools)" Google .SH NAME pprof \- manual page for pprof (part of gperftools) .SH SYNOPSIS .B pprof [\fIoptions\fR] \fI \fR .SH DESCRIPTION .IP Prints specified cpu- or heap-profile .SH OPTIONS .TP \fB\-\-cum\fR Sort by cumulative data .TP \fB\-\-base=\fR Subtract from before display .SS "Reporting Granularity:" .TP \fB\-\-addresses\fR Report at address level .TP \fB\-\-lines\fR Report at source line level .TP \fB\-\-functions\fR Report at function level [default] .TP \fB\-\-files\fR Report at source file level .SS "Output type:" .TP \fB\-\-text\fR Generate text report [default] .TP \fB\-\-gv\fR Generate Postscript and display .TP \fB\-\-list=\fR Generate source listing of matching routines .TP \fB\-\-disasm=\fR Generate disassembly of matching routines .TP \fB\-\-dot\fR Generate DOT file to stdout .TP \fB\-\-ps\fR Generate Postcript to stdout .TP \fB\-\-pdf\fR Generate PDF to stdout .TP \fB\-\-gif\fR Generate GIF to stdout .SS "Heap-Profile Options:" .TP \fB\-\-inuse_space\fR Display in-use (mega)bytes [default] .TP \fB\-\-inuse_objects\fR Display in-use objects .TP \fB\-\-alloc_space\fR Display allocated (mega)bytes .TP \fB\-\-alloc_objects\fR Display allocated objects .TP \fB\-\-show_bytes\fR Display space in bytes .TP \fB\-\-drop_negative\fR Ignore negaive differences .SS "Call-graph Options:" .TP \fB\-\-nodecount=\fR Show at most so many nodes [default=80] .TP \fB\-\-nodefraction=\fR Hide nodes below *total [default=.005] .TP \fB\-\-edgefraction=\fR Hide edges below *total [default=.001] .TP \fB\-\-focus=\fR Focus on nodes matching .TP \fB\-\-ignore=\fR Ignore nodes matching .TP \fB\-\-scale=\fR Set GV scaling [default=0] .SH EXAMPLES pprof /bin/ls ls.prof .IP Outputs one line per procedure .PP pprof \fB\-\-gv\fR /bin/ls ls.prof .IP Displays annotated call-graph via 'gv' .PP pprof \fB\-\-gv\fR \fB\-\-focus\fR=\fIMutex\fR /bin/ls ls.prof .IP Restricts to code paths including a .*Mutex.* entry .PP pprof \fB\-\-gv\fR \fB\-\-focus\fR=\fIMutex\fR \fB\-\-ignore\fR=\fIstring\fR /bin/ls ls.prof .IP Code paths including Mutex but not string .PP pprof \fB\-\-list\fR=\fIgetdir\fR /bin/ls ls.prof .IP Dissassembly (with per-line annotations) for getdir() .PP pprof \fB\-\-disasm\fR=\fIgetdir\fR /bin/ls ls.prof .IP Dissassembly (with per-PC annotations) for getdir() .SH COPYRIGHT Copyright \(co 2005 Google Inc. .SH "SEE ALSO" Further documentation for .B pprof is maintained as a web page called .B cpu_profiler.html and is likely installed at one of the following locations: .IP .B /usr/share/gperftools/cpu_profiler.html .br .B /usr/local/share/gperftools/cpu_profiler.html .PP gperftools-2.4/doc/index.html0000644000000000000000000000057312372001603013173 00000000000000 Gperftools
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pprof and Remote Servers

In mid-2006, we added an experimental facility to pprof, the tool that analyzes CPU and heap profiles. This facility allows you to collect profile information from running applications. It makes it easy to collect profile information without having to stop the program first, and without having to log into the machine where the application is running. This is meant to be used on webservers, but will work on any application that can be modified to accept TCP connections on a port of its choosing, and to respond to HTTP requests on that port.

We do not currently have infrastructure, such as apache modules, that you can pop into a webserver or other application to get the necessary functionality "for free." However, it's easy to generate the necessary data, which should allow the interested developer to add the necessary support into his or her applications.

To use pprof in this experimental "server" mode, you give the script a host and port it should query, replacing the normal commandline arguments of application + profile file:

   % pprof internalweb.mycompany.com:80

The host must be listening on that port, and be able to accept HTTP/1.0 requests -- sent via wget and curl -- for several urls. The following sections list the urls that pprof can send, and the responses it expects in return.

Here are examples that pprof will recognize, when you give them on the commandline, are urls. In general, you specify the host and a port (the port-number is required), and put the service-name at the end of the url.:

http://myhost:80/pprof/heap            # retrieves a heap profile
http://myhost:8008/pprof/profile       # retrieves a CPU profile
http://myhost:80                       # retrieves a CPU profile (the default)
http://myhost:8080/                    # retrieves a CPU profile (the default)
myhost:8088/pprof/growth               # "http://" is optional, but port is not
http://myhost:80/myservice/pprof/heap  # /pprof/heap just has to come at the end
http://myhost:80/pprof/pmuprofile      # CPU profile using performance counters

/pprof/heap

pprof asks for the url /pprof/heap to get heap information. The actual url is controlled via the variable HEAP_PAGE in the pprof script, so you can change it if you'd like.

There are two ways to get this data. The first is to call

    MallocExtension::instance()->GetHeapSample(&output);

and have the server send output back as an HTTP response to pprof. MallocExtension is defined in the header file gperftools/malloc_extension.h.

Note this will only only work if the binary is being run with sampling turned on (which is not the default). To do this, set the environment variable TCMALLOC_SAMPLE_PARAMETER to a positive value, such as 524288, before running.

The other way is to call HeapProfileStart(filename) (from heap-profiler.h), continue to do work, and then, some number of seconds later, call GetHeapProfile() (followed by HeapProfilerStop()). The server can send the output of GetHeapProfile back as the HTTP response to pprof. (Note you must free() this data after using it.) This is similar to how profile requests are handled, below. This technique does not require the application to run with sampling turned on.

Here's an example of what the output should look like:

heap profile:   1923: 127923432 [  1923: 127923432] @ heap_v2/524288
     1:      312 [     1:      312] @ 0x2aaaabaf5ccc 0x2aaaaba4cd2c 0x2aaaac08c09a
   928: 122586016 [   928: 122586016] @ 0x2aaaabaf682c 0x400680 0x400bdd 0x2aaaab1c368a 0x2aaaab1c8f77 0x2aaaab1c0396 0x2aaaab1c86ed 0x4007ff 0x2aaaaca62afa
     1:       16 [     1:       16] @ 0x2aaaabaf5ccc 0x2aaaabb04bac 0x2aaaabc1b262 0x2aaaabc21496 0x2aaaabc214bb
[...]

Older code may produce "version 1" heap profiles which look like this:

heap profile:  14933: 791700132 [ 14933: 791700132] @ heap
     1:   848688 [     1:   848688] @ 0xa4b142 0x7f5bfc 0x87065e 0x4056e9 0x4125f8 0x42b4f1 0x45b1ba 0x463248 0x460871 0x45cb7c 0x5f1744 0x607cee 0x5f4a5e 0x40080f 0x2aaaabad7afa
     1:  1048576 [     1:  1048576] @ 0xa4a9b2 0x7fd025 0x4ca6d8 0x4ca814 0x4caa88 0x2aaaab104cf0 0x404e20 0x4125f8 0x42b4f1 0x45b1ba 0x463248 0x460871 0x45cb7c 0x5f1744 0x607cee 0x5f4a5e 0x40080f 0x2aaaabad7afa
  2942: 388629374 [  2942: 388629374] @ 0xa4b142 0x4006a0 0x400bed 0x5f0cfa 0x5f1744 0x607cee 0x5f4a5e 0x40080f 0x2aaaabad7afa
[...]

pprof accepts both old and new heap profiles and automatically detects which one you are using.

/pprof/growth

pprof asks for the url /pprof/growth to get heap-profiling delta (growth) information. The actual url is controlled via the variable GROWTH_PAGE in the pprof script, so you can change it if you'd like.

The server should respond by calling

    MallocExtension::instance()->GetHeapGrowthStacks(&output);

and sending output back as an HTTP response to pprof. MallocExtension is defined in the header file gperftools/malloc_extension.h.

Here's an example, from an actual Google webserver, of what the output should look like:

heap profile:    741: 812122112 [   741: 812122112] @ growth
     1:  1572864 [     1:  1572864] @ 0x87da564 0x87db8a3 0x84787a4 0x846e851 0x836d12f 0x834cd1c 0x8349ba5 0x10a3177 0x8349961
     1:  1048576 [     1:  1048576] @ 0x87d92e8 0x87d9213 0x87d9178 0x87d94d3 0x87da9da 0x8a364ff 0x8a437e7 0x8ab7d23 0x8ab7da9 0x8ac7454 0x8348465 0x10a3161 0x8349961
[...]

/pprof/profile

pprof asks for the url /pprof/profile?seconds=XX to get cpu-profiling information. The actual url is controlled via the variable PROFILE_PAGE in the pprof script, so you can change it if you'd like.

The server should respond by calling ProfilerStart(filename), continuing to do its work, and then, XX seconds later, calling ProfilerStop(). (These functions are declared in gperftools/profiler.h.) The application is responsible for picking a unique filename for ProfilerStart(). After calling ProfilerStop(), the server should read the contents of filename and send them back as an HTTP response to pprof.

Obviously, to get useful profile information the application must continue to run in the XX seconds that the profiler is running. Thus, the profile start-stop calls should be done in a separate thread, or be otherwise non-blocking.

The profiler output file is binary, but near the end of it, it should have lines of text somewhat like this:

01016000-01017000 rw-p 00015000 03:01 59314      /lib/ld-2.2.2.so

/pprof/pmuprofile

pprof asks for a url of the form /pprof/pmuprofile?event=hw_event:unit_mask&period=nnn&seconds=xxx to get cpu-profiling information. The actual url is controlled via the variable PMUPROFILE_PAGE in the pprof script, so you can change it if you'd like.

This is similar to pprof, but is meant to be used with your CPU's hardware performance counters. The server could be implemented on top of a library such as libpfm. It should collect a sample every nnn occurrences of the event and stop the sampling after xxx seconds. Much of the code for /pprof/profile can be reused for this purpose.

The server side routines (the equivalent of ProfilerStart/ProfilerStart) are not available as part of perftools, so this URL is unlikely to be that useful.

/pprof/contention

This is intended to be able to profile (thread) lock contention in addition to CPU and memory use. It's not yet usable.

/pprof/cmdline

pprof asks for the url /pprof/cmdline to figure out what application it's profiling. The actual url is controlled via the variable PROGRAM_NAME_PAGE in the pprof script, so you can change it if you'd like.

The server should respond by reading the contents of /proc/self/cmdline, converting all internal NUL (\0) characters to newlines, and sending the result back as an HTTP response to pprof.

Here's an example return value:

/root/server/custom_webserver
80
--configfile=/root/server/ws.config

/pprof/symbol

pprof asks for the url /pprof/symbol to map from hex addresses to variable names. The actual url is controlled via the variable SYMBOL_PAGE in the pprof script, so you can change it if you'd like.

When the server receives a GET request for /pprof/symbol, it should return a line formatted like so:

   num_symbols: ###

where ### is the number of symbols found in the binary. (For now, the only important distinction is whether the value is 0, which it is for executables that lack debug information, or not-0).

This is perhaps the hardest request to write code for, because in addition to the GET request for this url, the server must accept POST requests. This means that after the HTTP headers, pprof will pass in a list of hex addresses connected by +, like so:

   curl -d '0x0824d061+0x0824d1cf' http://remote_host:80/pprof/symbol

The server should read the POST data, which will be in one line, and for each hex value, should write one line of output to the output stream, like so:

<hex address><tab><function name>

For instance:

0x08b2dabd    _Update

The other reason this is the most difficult request to implement, is that the application will have to figure out for itself how to map from address to function name. One possibility is to run nm -C -n <program name> to get the mappings at program-compile-time. Another, at least on Linux, is to call out to addr2line for every pprof/symbol call, for instance addr2line -Cfse /proc//exe 0x12345678 0x876543210 (presumably with some caching!)

pprof itself does just this for local profiles (not ones that talk to remote servers); look at the subroutine GetProcedureBoundaries.

Last modified: Mon Jun 12 21:30:14 PDT 2006 gperftools-2.4/doc/tcmalloc.html0000644000000000000000000007323412440704174013677 00000000000000 TCMalloc : Thread-Caching Malloc

TCMalloc : Thread-Caching Malloc

Sanjay Ghemawat

Motivation

TCMalloc is faster than the glibc 2.3 malloc (available as a separate library called ptmalloc2) and other mallocs that I have tested. ptmalloc2 takes approximately 300 nanoseconds to execute a malloc/free pair on a 2.8 GHz P4 (for small objects). The TCMalloc implementation takes approximately 50 nanoseconds for the same operation pair. Speed is important for a malloc implementation because if malloc is not fast enough, application writers are inclined to write their own custom free lists on top of malloc. This can lead to extra complexity, and more memory usage unless the application writer is very careful to appropriately size the free lists and scavenge idle objects out of the free list.

TCMalloc also reduces lock contention for multi-threaded programs. For small objects, there is virtually zero contention. For large objects, TCMalloc tries to use fine grained and efficient spinlocks. ptmalloc2 also reduces lock contention by using per-thread arenas but there is a big problem with ptmalloc2's use of per-thread arenas. In ptmalloc2 memory can never move from one arena to another. This can lead to huge amounts of wasted space. For example, in one Google application, the first phase would allocate approximately 300MB of memory for its URL canonicalization data structures. When the first phase finished, a second phase would be started in the same address space. If this second phase was assigned a different arena than the one used by the first phase, this phase would not reuse any of the memory left after the first phase and would add another 300MB to the address space. Similar memory blowup problems were also noticed in other applications.

Another benefit of TCMalloc is space-efficient representation of small objects. For example, N 8-byte objects can be allocated while using space approximately 8N * 1.01 bytes. I.e., a one-percent space overhead. ptmalloc2 uses a four-byte header for each object and (I think) rounds up the size to a multiple of 8 bytes and ends up using 16N bytes.

Usage

To use TCMalloc, just link TCMalloc into your application via the "-ltcmalloc" linker flag.

You can use TCMalloc in applications you didn't compile yourself, by using LD_PRELOAD:

   $ LD_PRELOAD="/usr/lib/libtcmalloc.so"

LD_PRELOAD is tricky, and we don't necessarily recommend this mode of usage.

TCMalloc includes a heap checker and heap profiler as well.

If you'd rather link in a version of TCMalloc that does not include the heap profiler and checker (perhaps to reduce binary size for a static binary), you can link in libtcmalloc_minimal instead.

Overview

TCMalloc assigns each thread a thread-local cache. Small allocations are satisfied from the thread-local cache. Objects are moved from central data structures into a thread-local cache as needed, and periodic garbage collections are used to migrate memory back from a thread-local cache into the central data structures.

TCMalloc treats objects with size <= 256K ("small" objects) differently from larger objects. Large objects are allocated directly from the central heap using a page-level allocator (a page is a 8K aligned region of memory). I.e., a large object is always page-aligned and occupies an integral number of pages.

A run of pages can be carved up into a sequence of small objects, each equally sized. For example a run of one page (4K) can be carved up into 32 objects of size 128 bytes each.

Small Object Allocation

Each small object size maps to one of approximately 88 allocatable size-classes. For example, all allocations in the range 961 to 1024 bytes are rounded up to 1024. The size-classes are spaced so that small sizes are separated by 8 bytes, larger sizes by 16 bytes, even larger sizes by 32 bytes, and so forth. The maximal spacing is controlled so that not too much space is wasted when an allocation request falls just past the end of a size class and has to be rounded up to the next class.

A thread cache contains a singly linked list of free objects per size-class.

When allocating a small object: (1) We map its size to the corresponding size-class. (2) Look in the corresponding free list in the thread cache for the current thread. (3) If the free list is not empty, we remove the first object from the list and return it. When following this fast path, TCMalloc acquires no locks at all. This helps speed-up allocation significantly because a lock/unlock pair takes approximately 100 nanoseconds on a 2.8 GHz Xeon.

If the free list is empty: (1) We fetch a bunch of objects from a central free list for this size-class (the central free list is shared by all threads). (2) Place them in the thread-local free list. (3) Return one of the newly fetched objects to the applications.

If the central free list is also empty: (1) We allocate a run of pages from the central page allocator. (2) Split the run into a set of objects of this size-class. (3) Place the new objects on the central free list. (4) As before, move some of these objects to the thread-local free list.

Sizing Thread Cache Free Lists

It is important to size the thread cache free lists correctly. If the free list is too small, we'll need to go to the central free list too often. If the free list is too big, we'll waste memory as objects sit idle in the free list.

Note that the thread caches are just as important for deallocation as they are for allocation. Without a cache, each deallocation would require moving the memory to the central free list. Also, some threads have asymmetric alloc/free behavior (e.g. producer and consumer threads), so sizing the free list correctly gets trickier.

To size the free lists appropriately, we use a slow-start algorithm to determine the maximum length of each individual free list. As the free list is used more frequently, its maximum length grows. However, if a free list is used more for deallocation than allocation, its maximum length will grow only up to a point where the whole list can be efficiently moved to the central free list at once.

The psuedo-code below illustrates this slow-start algorithm. Note that num_objects_to_move is specific to each size class. By moving a list of objects with a well-known length, the central cache can efficiently pass these lists between thread caches. If a thread cache wants fewer than num_objects_to_move, the operation on the central free list has linear time complexity. The downside of always using num_objects_to_move as the number of objects to transfer to and from the central cache is that it wastes memory in threads that don't need all of those objects. 

Start each freelist max_length at 1.

Allocation
  if freelist empty {
    fetch min(max_length, num_objects_to_move) from central list;
    if max_length < num_objects_to_move {  // slow-start
      max_length++;
    } else {
      max_length += num_objects_to_move;
    }
  }

Deallocation
  if length > max_length {
    // Don't try to release num_objects_to_move if we don't have that many.
    release min(max_length, num_objects_to_move) objects to central list
    if max_length < num_objects_to_move {
      // Slow-start up to num_objects_to_move.
      max_length++;
    } else if max_length > num_objects_to_move {
      // If we consistently go over max_length, shrink max_length.
      overages++;
      if overages > kMaxOverages {
        max_length -= num_objects_to_move;
        overages = 0;
      }
    }
  }
See also the section on Garbage Collection to see how it affects the max_length.

Large Object Allocation

A large object size (> 256K) is rounded up to a page size (8K) and is handled by a central page heap. The central page heap is again an array of free lists. For i < 128, the kth entry is a free list of runs that consist of k pages. The 128th entry is a free list of runs that have length >= 128 pages:

An allocation for k pages is satisfied by looking in the kth free list. If that free list is empty, we look in the next free list, and so forth. Eventually, we look in the last free list if necessary. If that fails, we fetch memory from the system (using sbrk, mmap, or by mapping in portions of /dev/mem).

If an allocation for k pages is satisfied by a run of pages of length > k, the remainder of the run is re-inserted back into the appropriate free list in the page heap.

Spans

The heap managed by TCMalloc consists of a set of pages. A run of contiguous pages is represented by a Span object. A span can either be allocated, or free. If free, the span is one of the entries in a page heap linked-list. If allocated, it is either a large object that has been handed off to the application, or a run of pages that have been split up into a sequence of small objects. If split into small objects, the size-class of the objects is recorded in the span.

A central array indexed by page number can be used to find the span to which a page belongs. For example, span a below occupies 2 pages, span b occupies 1 page, span c occupies 5 pages and span d occupies 3 pages.

In a 32-bit address space, the central array is represented by a a 2-level radix tree where the root contains 32 entries and each leaf contains 2^14 entries (a 32-bit address space has 2^19 8K pages, and the first level of tree divides the 2^19 pages by 2^5). This leads to a starting memory usage of 64KB of space (2^14*4 bytes) for the central array, which seems acceptable.

On 64-bit machines, we use a 3-level radix tree.

Deallocation

When an object is deallocated, we compute its page number and look it up in the central array to find the corresponding span object. The span tells us whether or not the object is small, and its size-class if it is small. If the object is small, we insert it into the appropriate free list in the current thread's thread cache. If the thread cache now exceeds a predetermined size (2MB by default), we run a garbage collector that moves unused objects from the thread cache into central free lists.

If the object is large, the span tells us the range of pages covered by the object. Suppose this range is [p,q]. We also lookup the spans for pages p-1 and q+1. If either of these neighboring spans are free, we coalesce them with the [p,q] span. The resulting span is inserted into the appropriate free list in the page heap.

Central Free Lists for Small Objects

As mentioned before, we keep a central free list for each size-class. Each central free list is organized as a two-level data structure: a set of spans, and a linked list of free objects per span.

An object is allocated from a central free list by removing the first entry from the linked list of some span. (If all spans have empty linked lists, a suitably sized span is first allocated from the central page heap.)

An object is returned to a central free list by adding it to the linked list of its containing span. If the linked list length now equals the total number of small objects in the span, this span is now completely free and is returned to the page heap.

Garbage Collection of Thread Caches

Garbage collecting objects from a thread cache keeps the size of the cache under control and returns unused objects to the central free lists. Some threads need large caches to perform well while others can get by with little or no cache at all. When a thread cache goes over its max_size, garbage collection kicks in and then the thread competes with the other threads for a larger cache.

Garbage collection is run only during a deallocation. We walk over all free lists in the cache and move some number of objects from the free list to the corresponding central list.

The number of objects to be moved from a free list is determined using a per-list low-water-mark L. L records the minimum length of the list since the last garbage collection. Note that we could have shortened the list by L objects at the last garbage collection without requiring any extra accesses to the central list. We use this past history as a predictor of future accesses and move L/2 objects from the thread cache free list to the corresponding central free list. This algorithm has the nice property that if a thread stops using a particular size, all objects of that size will quickly move from the thread cache to the central free list where they can be used by other threads.

If a thread consistently deallocates more objects of a certain size than it allocates, this L/2 behavior will cause at least L/2 objects to always sit in the free list. To avoid wasting memory this way, we shrink the maximum length of the freelist to converge on num_objects_to_move (see also Sizing Thread Cache Free Lists). 

Garbage Collection
  if (L != 0 && max_length > num_objects_to_move) {
    max_length = max(max_length - num_objects_to_move, num_objects_to_move)
  }

The fact that the thread cache went over its max_size is an indication that the thread would benefit from a larger cache. Simply increasing max_size would use an inordinate amount of memory in programs that have lots of active threads. Developers can bound the memory used with the flag --tcmalloc_max_total_thread_cache_bytes.

Each thread cache starts with a small max_size (e.g. 64KB) so that idle threads won't pre-allocate memory they don't need. Each time the cache runs a garbage collection, it will also try to grow its max_size. If the sum of the thread cache sizes is less than --tcmalloc_max_total_thread_cache_bytes, max_size grows easily. If not, thread cache 1 will try to steal from thread cache 2 (picked round-robin) by decreasing thread cache 2's max_size. In this way, threads that are more active will steal memory from other threads more often than they are have memory stolen from themselves. Mostly idle threads end up with small caches and active threads end up with big caches. Note that this stealing can cause the sum of the thread cache sizes to be greater than --tcmalloc_max_total_thread_cache_bytes until thread cache 2 deallocates some memory to trigger a garbage collection.

Performance Notes

PTMalloc2 unittest

The PTMalloc2 package (now part of glibc) contains a unittest program t-test1.c. This forks a number of threads and performs a series of allocations and deallocations in each thread; the threads do not communicate other than by synchronization in the memory allocator.

t-test1 (included in tests/tcmalloc/, and compiled as ptmalloc_unittest1) was run with a varying numbers of threads (1-20) and maximum allocation sizes (64 bytes - 32Kbytes). These tests were run on a 2.4GHz dual Xeon system with hyper-threading enabled, using Linux glibc-2.3.2 from RedHat 9, with one million operations per thread in each test. In each case, the test was run once normally, and once with LD_PRELOAD=libtcmalloc.so.

The graphs below show the performance of TCMalloc vs PTMalloc2 for several different metrics. Firstly, total operations (millions) per elapsed second vs max allocation size, for varying numbers of threads. The raw data used to generate these graphs (the output of the time utility) is available in t-test1.times.txt.

  • TCMalloc is much more consistently scalable than PTMalloc2 - for all thread counts >1 it achieves ~7-9 million ops/sec for small allocations, falling to ~2 million ops/sec for larger allocations. The single-thread case is an obvious outlier, since it is only able to keep a single processor busy and hence can achieve fewer ops/sec. PTMalloc2 has a much higher variance on operations/sec - peaking somewhere around 4 million ops/sec for small allocations and falling to <1 million ops/sec for larger allocations.
  • TCMalloc is faster than PTMalloc2 in the vast majority of cases, and particularly for small allocations. Contention between threads is less of a problem in TCMalloc.
  • TCMalloc's performance drops off as the allocation size increases. This is because the per-thread cache is garbage-collected when it hits a threshold (defaulting to 2MB). With larger allocation sizes, fewer objects can be stored in the cache before it is garbage-collected.
  • There is a noticeable drop in TCMalloc's performance at ~32K maximum allocation size; at larger sizes performance drops less quickly. This is due to the 32K maximum size of objects in the per-thread caches; for objects larger than this TCMalloc allocates from the central page heap.

Next, operations (millions) per second of CPU time vs number of threads, for max allocation size 64 bytes - 128 Kbytes.

Here we see again that TCMalloc is both more consistent and more efficient than PTMalloc2. For max allocation sizes <32K, TCMalloc typically achieves ~2-2.5 million ops per second of CPU time with a large number of threads, whereas PTMalloc achieves generally 0.5-1 million ops per second of CPU time, with a lot of cases achieving much less than this figure. Above 32K max allocation size, TCMalloc drops to 1-1.5 million ops per second of CPU time, and PTMalloc drops almost to zero for large numbers of threads (i.e. with PTMalloc, lots of CPU time is being burned spinning waiting for locks in the heavily multi-threaded case).

Modifying Runtime Behavior

You can more finely control the behavior of the tcmalloc via environment variables.

Generally useful flags:

TCMALLOC_SAMPLE_PARAMETER default: 0 The approximate gap between sampling actions. That is, we take one sample approximately once every tcmalloc_sample_parmeter bytes of allocation. This sampled heap information is available via MallocExtension::GetHeapSample() or MallocExtension::ReadStackTraces(). A reasonable value is 524288.
TCMALLOC_RELEASE_RATE default: 1.0 Rate at which we release unused memory to the system, via madvise(MADV_DONTNEED), on systems that support it. Zero means we never release memory back to the system. Increase this flag to return memory faster; decrease it to return memory slower. Reasonable rates are in the range [0,10].
TCMALLOC_LARGE_ALLOC_REPORT_THRESHOLD default: 1073741824 Allocations larger than this value cause a stack trace to be dumped to stderr. The threshold for dumping stack traces is increased by a factor of 1.125 every time we print a message so that the threshold automatically goes up by a factor of ~1000 every 60 messages. This bounds the amount of extra logging generated by this flag. Default value of this flag is very large and therefore you should see no extra logging unless the flag is overridden.
TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES default: 16777216 Bound on the total amount of bytes allocated to thread caches. This bound is not strict, so it is possible for the cache to go over this bound in certain circumstances. This value defaults to 16MB. For applications with many threads, this may not be a large enough cache, which can affect performance. If you suspect your application is not scaling to many threads due to lock contention in TCMalloc, you can try increasing this value. This may improve performance, at a cost of extra memory use by TCMalloc. See Garbage Collection for more details.

Advanced "tweaking" flags, that control more precisely how tcmalloc tries to allocate memory from the kernel.

TCMALLOC_SKIP_MMAP default: false If true, do not try to use mmap to obtain memory from the kernel.
TCMALLOC_SKIP_SBRK default: false If true, do not try to use sbrk to obtain memory from the kernel.
TCMALLOC_DEVMEM_START default: 0 Physical memory starting location in MB for /dev/mem allocation. Setting this to 0 disables /dev/mem allocation.
TCMALLOC_DEVMEM_LIMIT default: 0 Physical memory limit location in MB for /dev/mem allocation. Setting this to 0 means no limit.
TCMALLOC_DEVMEM_DEVICE default: /dev/mem Device to use for allocating unmanaged memory.
TCMALLOC_MEMFS_MALLOC_PATH default: "" If set, specify a path where hugetlbfs or tmpfs is mounted. This may allow for speedier allocations.
TCMALLOC_MEMFS_LIMIT_MB default: 0 Limit total memfs allocation size to specified number of MB. 0 means "no limit".
TCMALLOC_MEMFS_ABORT_ON_FAIL default: false If true, abort() whenever memfs_malloc fails to satisfy an allocation.
TCMALLOC_MEMFS_IGNORE_MMAP_FAIL default: false If true, ignore failures from mmap.
TCMALLOC_MEMFS_MAP_PRVIATE default: false If true, use MAP_PRIVATE when mapping via memfs, not MAP_SHARED.

Modifying Behavior In Code

The MallocExtension class, in malloc_extension.h, provides a few knobs that you can tweak in your program, to affect tcmalloc's behavior.

Releasing Memory Back to the System

By default, tcmalloc will release no-longer-used memory back to the kernel gradually, over time. The tcmalloc_release_rate flag controls how quickly this happens. You can also force a release at a given point in the progam execution like so:

   MallocExtension::instance()->ReleaseFreeMemory();

You can also call SetMemoryReleaseRate() to change the tcmalloc_release_rate value at runtime, or GetMemoryReleaseRate to see what the current release rate is.

Memory Introspection

There are several routines for getting a human-readable form of the current memory usage:

   MallocExtension::instance()->GetStats(buffer, buffer_length);
   MallocExtension::instance()->GetHeapSample(&string);
   MallocExtension::instance()->GetHeapGrowthStacks(&string);

The last two create files in the same format as the heap-profiler, and can be passed as data files to pprof. The first is human-readable and is meant for debugging.

Generic Tcmalloc Status

TCMalloc has support for setting and retrieving arbitrary 'properties':

   MallocExtension::instance()->SetNumericProperty(property_name, value);
   MallocExtension::instance()->GetNumericProperty(property_name, &value);

It is possible for an application to set and get these properties, but the most useful is when a library sets the properties so the application can read them. Here are the properties TCMalloc defines; you can access them with a call like MallocExtension::instance()->GetNumericProperty("generic.heap_size", &value);:

generic.current_allocated_bytes Number of bytes used by the application. This will not typically match the memory use reported by the OS, because it does not include TCMalloc overhead or memory fragmentation.
generic.heap_size Bytes of system memory reserved by TCMalloc.
tcmalloc.pageheap_free_bytes Number of bytes in free, mapped pages in page heap. These bytes can be used to fulfill allocation requests. They always count towards virtual memory usage, and unless the underlying memory is swapped out by the OS, they also count towards physical memory usage.
tcmalloc.pageheap_unmapped_bytes Number of bytes in free, unmapped pages in page heap. These are bytes that have been released back to the OS, possibly by one of the MallocExtension "Release" calls. They can be used to fulfill allocation requests, but typically incur a page fault. They always count towards virtual memory usage, and depending on the OS, typically do not count towards physical memory usage.
tcmalloc.slack_bytes Sum of pageheap_free_bytes and pageheap_unmapped_bytes. Provided for backwards compatibility only. Do not use.
tcmalloc.max_total_thread_cache_bytes A limit to how much memory TCMalloc dedicates for small objects. Higher numbers trade off more memory use for -- in some situations -- improved efficiency.
tcmalloc.current_total_thread_cache_bytes A measure of some of the memory TCMalloc is using (for small objects).

Caveats

For some systems, TCMalloc may not work correctly with applications that aren't linked against libpthread.so (or the equivalent on your OS). It should work on Linux using glibc 2.3, but other OS/libc combinations have not been tested.

TCMalloc may be somewhat more memory hungry than other mallocs, (but tends not to have the huge blowups that can happen with other mallocs). In particular, at startup TCMalloc allocates approximately 240KB of internal memory.

Don't try to load TCMalloc into a running binary (e.g., using JNI in Java programs). The binary will have allocated some objects using the system malloc, and may try to pass them to TCMalloc for deallocation. TCMalloc will not be able to handle such objects.

Sanjay Ghemawat, Paul Menage
Last modified: Sat Feb 24 13:11:38 PST 2007 (csilvers)
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time.1.tcmalloc.128:0.35 user 0.00 system 0.35 elapsed 99% CPU time.1.ptmalloc.256:0.59 user 0.01 system 0.60 elapsed 100% CPU time.1.tcmalloc.256:0.27 user 0.02 system 0.28 elapsed 102% CPU time.1.ptmalloc.512:0.57 user 0.00 system 0.57 elapsed 100% CPU time.1.tcmalloc.512:0.25 user 0.01 system 0.25 elapsed 101% CPU time.1.ptmalloc.1024:0.52 user 0.00 system 0.52 elapsed 99% CPU time.1.tcmalloc.1024:0.22 user 0.02 system 0.24 elapsed 97% CPU time.1.ptmalloc.2048:0.47 user 0.00 system 0.47 elapsed 99% CPU time.1.tcmalloc.2048:0.22 user 0.02 system 0.25 elapsed 95% CPU time.1.ptmalloc.4096:0.48 user 0.01 system 0.48 elapsed 100% CPU time.1.tcmalloc.4096:0.25 user 0.01 system 0.25 elapsed 100% CPU time.1.ptmalloc.8192:0.49 user 0.02 system 0.49 elapsed 102% CPU time.1.tcmalloc.8192:0.27 user 0.02 system 0.28 elapsed 101% CPU time.1.ptmalloc.16384:0.51 user 0.04 system 0.55 elapsed 99% CPU time.1.tcmalloc.16384:0.35 user 0.02 system 0.37 elapsed 100% CPU time.1.ptmalloc.32768:0.53 user 0.14 system 0.66 elapsed 100% CPU time.1.tcmalloc.32768:0.67 user 0.02 system 0.69 elapsed 99% CPU time.1.ptmalloc.65536:0.68 user 0.31 system 0.98 elapsed 100% CPU time.1.tcmalloc.65536:0.71 user 0.01 system 0.72 elapsed 99% CPU time.1.ptmalloc.131072:0.90 user 0.72 system 1.62 elapsed 99% CPU time.1.tcmalloc.131072:0.94 user 0.03 system 0.97 elapsed 99% CPU time.2.ptmalloc.64:1.05 user 0.00 system 0.53 elapsed 196% CPU time.2.tcmalloc.64:0.66 user 0.03 system 0.37 elapsed 185% CPU time.2.ptmalloc.128:1.77 user 0.01 system 0.89 elapsed 198% CPU time.2.tcmalloc.128:0.53 user 0.01 system 0.29 elapsed 184% CPU time.2.ptmalloc.256:1.14 user 0.01 system 0.62 elapsed 182% CPU time.2.tcmalloc.256:0.45 user 0.02 system 0.26 elapsed 180% CPU time.2.ptmalloc.512:1.26 user 0.40 system 1.79 elapsed 92% CPU time.2.tcmalloc.512:0.43 user 0.02 system 0.27 elapsed 166% CPU time.2.ptmalloc.1024:0.98 user 0.03 system 0.56 elapsed 179% CPU time.2.tcmalloc.1024:0.44 user 0.02 system 0.34 elapsed 134% CPU time.2.ptmalloc.2048:0.87 user 0.02 system 0.44 elapsed 199% CPU time.2.tcmalloc.2048:0.49 user 0.02 system 0.34 elapsed 148% CPU time.2.ptmalloc.4096:0.92 user 0.03 system 0.48 elapsed 196% CPU time.2.tcmalloc.4096:0.50 user 0.02 system 0.49 elapsed 105% CPU time.2.ptmalloc.8192:1.05 user 0.04 system 0.55 elapsed 196% CPU time.2.tcmalloc.8192:0.59 user 0.01 system 0.51 elapsed 116% CPU time.2.ptmalloc.16384:1.30 user 0.14 system 0.72 elapsed 198% CPU time.2.tcmalloc.16384:0.63 user 0.03 system 0.68 elapsed 96% CPU time.2.ptmalloc.32768:1.33 user 0.56 system 1.00 elapsed 189% CPU time.2.tcmalloc.32768:1.16 user 0.01 system 1.17 elapsed 99% CPU time.2.ptmalloc.65536:1.86 user 1.79 system 2.01 elapsed 181% CPU time.2.tcmalloc.65536:1.35 user 0.01 system 1.35 elapsed 100% CPU time.2.ptmalloc.131072:2.61 user 5.19 system 4.81 elapsed 162% CPU time.2.tcmalloc.131072:1.86 user 0.04 system 1.90 elapsed 100% CPU time.3.ptmalloc.64:1.79 user 0.03 system 0.67 elapsed 268% CPU time.3.tcmalloc.64:1.58 user 0.04 system 0.62 elapsed 260% CPU time.3.ptmalloc.128:2.77 user 1.34 system 3.07 elapsed 133% CPU time.3.tcmalloc.128:1.19 user 0.01 system 0.50 elapsed 236% CPU time.3.ptmalloc.256:2.14 user 0.02 system 0.85 elapsed 252% CPU time.3.tcmalloc.256:0.96 user 0.01 system 0.41 elapsed 236% CPU time.3.ptmalloc.512:3.37 user 1.31 system 3.33 elapsed 140% CPU time.3.tcmalloc.512:0.93 user 0.04 system 0.39 elapsed 243% CPU time.3.ptmalloc.1024:1.66 user 0.01 system 0.64 elapsed 260% CPU time.3.tcmalloc.1024:0.81 user 0.02 system 0.44 elapsed 187% CPU time.3.ptmalloc.2048:2.07 user 0.01 system 0.82 elapsed 252% CPU time.3.tcmalloc.2048:1.10 user 0.04 system 0.59 elapsed 191% CPU time.3.ptmalloc.4096:2.01 user 0.03 system 0.79 elapsed 258% CPU time.3.tcmalloc.4096:0.87 user 0.03 system 0.65 elapsed 137% CPU time.3.ptmalloc.8192:2.22 user 0.11 system 0.83 elapsed 280% CPU time.3.tcmalloc.8192:0.96 user 0.06 system 0.75 elapsed 135% CPU time.3.ptmalloc.16384:2.56 user 0.47 system 1.02 elapsed 295% CPU time.3.tcmalloc.16384:0.99 user 0.04 system 1.03 elapsed 99% CPU time.3.ptmalloc.32768:3.29 user 1.75 system 1.96 elapsed 256% CPU time.3.tcmalloc.32768:1.67 user 0.02 system 1.69 elapsed 99% CPU time.3.ptmalloc.65536:4.04 user 6.62 system 4.92 elapsed 216% CPU time.3.tcmalloc.65536:1.91 user 0.02 system 1.98 elapsed 97% CPU time.3.ptmalloc.131072:5.55 user 17.86 system 12.44 elapsed 188% CPU time.3.tcmalloc.131072:2.78 user 0.02 system 2.82 elapsed 99% CPU time.4.ptmalloc.64:3.42 user 1.36 system 3.20 elapsed 149% CPU time.4.tcmalloc.64:2.42 user 0.02 system 0.71 elapsed 341% CPU time.4.ptmalloc.128:3.98 user 1.79 system 3.89 elapsed 148% CPU time.4.tcmalloc.128:1.87 user 0.02 system 0.58 elapsed 325% CPU time.4.ptmalloc.256:4.06 user 2.14 system 4.12 elapsed 150% CPU time.4.tcmalloc.256:1.69 user 0.02 system 0.51 elapsed 331% CPU time.4.ptmalloc.512:4.48 user 2.15 system 4.39 elapsed 150% CPU time.4.tcmalloc.512:1.62 user 0.03 system 0.52 elapsed 314% CPU time.4.ptmalloc.1024:3.18 user 0.03 system 0.84 elapsed 381% CPU time.4.tcmalloc.1024:1.53 user 0.02 system 0.56 elapsed 274% CPU time.4.ptmalloc.2048:3.24 user 0.02 system 0.84 elapsed 384% CPU time.4.tcmalloc.2048:1.44 user 0.04 system 0.66 elapsed 221% CPU time.4.ptmalloc.4096:3.50 user 0.04 system 0.91 elapsed 389% CPU time.4.tcmalloc.4096:1.31 user 0.01 system 0.89 elapsed 148% CPU time.4.ptmalloc.8192:6.77 user 3.85 system 4.14 elapsed 256% CPU time.4.tcmalloc.8192:1.20 user 0.05 system 0.97 elapsed 127% CPU time.4.ptmalloc.16384:7.08 user 5.06 system 4.63 elapsed 262% CPU time.4.tcmalloc.16384:1.27 user 0.03 system 1.25 elapsed 103% CPU time.4.ptmalloc.32768:5.57 user 4.22 system 3.31 elapsed 295% CPU time.4.tcmalloc.32768:2.17 user 0.03 system 2.25 elapsed 97% CPU time.4.ptmalloc.65536:6.11 user 15.05 system 9.19 elapsed 230% CPU time.4.tcmalloc.65536:2.51 user 0.02 system 2.57 elapsed 98% CPU time.4.ptmalloc.131072:7.58 user 33.15 system 21.28 elapsed 191% CPU time.4.tcmalloc.131072:3.57 user 0.07 system 3.66 elapsed 99% CPU time.5.ptmalloc.64:4.44 user 2.08 system 4.37 elapsed 148% CPU time.5.tcmalloc.64:2.87 user 0.02 system 0.79 elapsed 361% CPU time.5.ptmalloc.128:4.77 user 2.77 system 5.14 elapsed 146% CPU time.5.tcmalloc.128:2.65 user 0.03 system 0.72 elapsed 367% CPU time.5.ptmalloc.256:5.82 user 2.88 system 5.49 elapsed 158% CPU time.5.tcmalloc.256:2.33 user 0.01 system 0.66 elapsed 352% CPU time.5.ptmalloc.512:6.27 user 3.11 system 5.34 elapsed 175% CPU time.5.tcmalloc.512:2.14 user 0.03 system 0.70 elapsed 307% CPU time.5.ptmalloc.1024:6.82 user 3.18 system 5.23 elapsed 191% CPU time.5.tcmalloc.1024:2.20 user 0.02 system 0.70 elapsed 313% CPU time.5.ptmalloc.2048:6.57 user 3.46 system 5.22 elapsed 192% CPU time.5.tcmalloc.2048:2.15 user 0.03 system 0.82 elapsed 264% CPU time.5.ptmalloc.4096:8.75 user 5.09 system 5.26 elapsed 263% CPU time.5.tcmalloc.4096:1.68 user 0.03 system 1.08 elapsed 158% CPU time.5.ptmalloc.8192:4.48 user 0.61 system 1.51 elapsed 335% CPU time.5.tcmalloc.8192:1.47 user 0.07 system 1.18 elapsed 129% CPU time.5.ptmalloc.16384:5.71 user 1.98 system 2.14 elapsed 358% CPU time.5.tcmalloc.16384:1.58 user 0.03 system 1.52 elapsed 105% CPU time.5.ptmalloc.32768:7.19 user 7.81 system 5.53 elapsed 270% CPU time.5.tcmalloc.32768:2.63 user 0.05 system 2.72 elapsed 98% CPU time.5.ptmalloc.65536:8.45 user 23.51 system 14.30 elapsed 223% CPU time.5.tcmalloc.65536:3.12 user 0.05 system 3.21 elapsed 98% CPU time.5.ptmalloc.131072:10.22 user 43.63 system 27.84 elapsed 193% CPU time.5.tcmalloc.131072:4.42 user 0.07 system 4.51 elapsed 99% CPU time.6.ptmalloc.64:5.57 user 2.56 system 5.08 elapsed 159% CPU time.6.tcmalloc.64:3.20 user 0.01 system 0.89 elapsed 360% CPU time.6.ptmalloc.128:5.98 user 3.52 system 5.71 elapsed 166% CPU time.6.tcmalloc.128:2.76 user 0.02 system 0.78 elapsed 355% CPU time.6.ptmalloc.256:4.61 user 0.02 system 1.19 elapsed 389% CPU time.6.tcmalloc.256:2.65 user 0.02 system 0.74 elapsed 356% CPU time.6.ptmalloc.512:8.28 user 3.88 system 6.61 elapsed 183% CPU time.6.tcmalloc.512:2.60 user 0.02 system 0.72 elapsed 362% CPU time.6.ptmalloc.1024:4.75 user 0.00 system 1.22 elapsed 387% CPU time.6.tcmalloc.1024:2.56 user 0.02 system 0.79 elapsed 325% CPU time.6.ptmalloc.2048:8.90 user 4.59 system 6.15 elapsed 219% CPU time.6.tcmalloc.2048:2.37 user 0.06 system 0.96 elapsed 250% CPU time.6.ptmalloc.4096:11.41 user 7.02 system 6.31 elapsed 291% CPU time.6.tcmalloc.4096:1.82 user 0.03 system 1.19 elapsed 154% CPU time.6.ptmalloc.8192:11.64 user 8.25 system 5.97 elapsed 332% CPU time.6.tcmalloc.8192:1.83 user 0.07 system 1.38 elapsed 136% CPU time.6.ptmalloc.16384:7.44 user 2.98 system 3.01 elapsed 345% CPU time.6.tcmalloc.16384:1.83 user 0.08 system 1.80 elapsed 105% CPU time.6.ptmalloc.32768:8.69 user 12.35 system 8.04 elapsed 261% CPU time.6.tcmalloc.32768:3.14 user 0.06 system 3.24 elapsed 98% CPU time.6.ptmalloc.65536:10.52 user 35.43 system 20.75 elapsed 221% CPU time.6.tcmalloc.65536:3.62 user 0.03 system 3.72 elapsed 98% CPU time.6.ptmalloc.131072:11.74 user 59.00 system 36.93 elapsed 191% CPU time.6.tcmalloc.131072:5.33 user 0.04 system 5.42 elapsed 98% CPU time.7.ptmalloc.64:6.60 user 3.45 system 6.01 elapsed 167% CPU time.7.tcmalloc.64:3.50 user 0.04 system 0.94 elapsed 376% CPU time.7.ptmalloc.128:7.09 user 4.25 system 6.69 elapsed 169% CPU time.7.tcmalloc.128:3.13 user 0.03 system 0.84 elapsed 374% CPU time.7.ptmalloc.256:9.28 user 4.85 system 7.20 elapsed 196% CPU time.7.tcmalloc.256:3.06 user 0.02 system 0.82 elapsed 375% CPU time.7.ptmalloc.512:9.13 user 4.78 system 6.79 elapsed 204% CPU time.7.tcmalloc.512:2.99 user 0.03 system 0.83 elapsed 359% CPU time.7.ptmalloc.1024:10.85 user 6.41 system 7.52 elapsed 229% CPU time.7.tcmalloc.1024:3.05 user 0.04 system 0.89 elapsed 345% CPU time.7.ptmalloc.2048:5.65 user 0.08 system 1.47 elapsed 388% CPU time.7.tcmalloc.2048:3.01 user 0.01 system 0.98 elapsed 306% CPU time.7.ptmalloc.4096:6.09 user 0.08 system 1.58 elapsed 389% CPU time.7.tcmalloc.4096:2.25 user 0.03 system 1.32 elapsed 171% CPU time.7.ptmalloc.8192:6.73 user 0.85 system 1.99 elapsed 379% CPU time.7.tcmalloc.8192:2.22 user 0.08 system 1.61 elapsed 142% CPU time.7.ptmalloc.16384:8.87 user 4.66 system 4.04 elapsed 334% CPU time.7.tcmalloc.16384:2.07 user 0.07 system 2.07 elapsed 103% CPU time.7.ptmalloc.32768:10.61 user 17.85 system 11.22 elapsed 253% CPU time.7.tcmalloc.32768:3.68 user 0.06 system 3.79 elapsed 98% CPU time.7.ptmalloc.65536:13.05 user 45.97 system 27.28 elapsed 216% CPU time.7.tcmalloc.65536:4.16 user 0.07 system 4.31 elapsed 98% CPU time.7.ptmalloc.131072:13.22 user 62.67 system 41.33 elapsed 183% CPU time.7.tcmalloc.131072:6.10 user 0.06 system 6.25 elapsed 98% CPU time.8.ptmalloc.64:7.31 user 3.92 system 6.39 elapsed 175% CPU time.8.tcmalloc.64:4.00 user 0.01 system 1.04 elapsed 383% CPU time.8.ptmalloc.128:9.40 user 5.41 system 7.67 elapsed 192% CPU time.8.tcmalloc.128:3.61 user 0.02 system 0.94 elapsed 386% CPU time.8.ptmalloc.256:10.61 user 6.35 system 7.96 elapsed 212% CPU time.8.tcmalloc.256:3.30 user 0.02 system 0.99 elapsed 335% CPU time.8.ptmalloc.512:12.42 user 7.10 system 8.79 elapsed 221% CPU time.8.tcmalloc.512:3.35 user 0.04 system 0.94 elapsed 358% CPU time.8.ptmalloc.1024:13.63 user 8.54 system 8.95 elapsed 247% CPU time.8.tcmalloc.1024:3.44 user 0.02 system 0.96 elapsed 359% CPU time.8.ptmalloc.2048:6.45 user 0.03 system 1.67 elapsed 386% CPU time.8.tcmalloc.2048:3.55 user 0.05 system 1.09 elapsed 328% CPU time.8.ptmalloc.4096:6.83 user 0.26 system 1.80 elapsed 393% CPU time.8.tcmalloc.4096:2.78 user 0.06 system 1.53 elapsed 185% CPU time.8.ptmalloc.8192:7.59 user 1.29 system 2.36 elapsed 376% CPU time.8.tcmalloc.8192:2.57 user 0.07 system 1.84 elapsed 142% CPU time.8.ptmalloc.16384:10.15 user 6.20 system 5.20 elapsed 314% CPU time.8.tcmalloc.16384:2.40 user 0.05 system 2.42 elapsed 101% CPU time.8.ptmalloc.32768:11.82 user 24.48 system 14.60 elapsed 248% CPU time.8.tcmalloc.32768:4.37 user 0.05 system 4.47 elapsed 98% CPU time.8.ptmalloc.65536:15.41 user 58.94 system 34.42 elapsed 215% CPU time.8.tcmalloc.65536:4.90 user 0.04 system 4.96 elapsed 99% CPU time.8.ptmalloc.131072:16.07 user 82.93 system 52.51 elapsed 188% CPU time.8.tcmalloc.131072:7.13 user 0.04 system 7.19 elapsed 99% CPU time.9.ptmalloc.64:8.44 user 4.59 system 6.92 elapsed 188% CPU time.9.tcmalloc.64:4.00 user 0.02 system 1.05 elapsed 382% CPU time.9.ptmalloc.128:10.92 user 6.14 system 8.31 elapsed 205% CPU time.9.tcmalloc.128:3.88 user 0.02 system 1.01 elapsed 382% CPU time.9.ptmalloc.256:13.01 user 7.75 system 9.12 elapsed 227% CPU time.9.tcmalloc.256:3.89 user 0.01 system 1.00 elapsed 386% CPU time.9.ptmalloc.512:14.96 user 8.89 system 9.73 elapsed 244% CPU time.9.tcmalloc.512:3.80 user 0.03 system 1.01 elapsed 377% CPU time.9.ptmalloc.1024:15.42 user 10.20 system 9.80 elapsed 261% CPU time.9.tcmalloc.1024:3.86 user 0.03 system 1.19 elapsed 325% CPU time.9.ptmalloc.2048:7.24 user 0.02 system 1.87 elapsed 388% CPU time.9.tcmalloc.2048:3.98 user 0.05 system 1.26 elapsed 319% CPU time.9.ptmalloc.4096:7.96 user 0.18 system 2.06 elapsed 394% CPU time.9.tcmalloc.4096:3.27 user 0.04 system 1.69 elapsed 195% CPU time.9.ptmalloc.8192:9.00 user 1.63 system 2.79 elapsed 380% CPU time.9.tcmalloc.8192:3.00 user 0.06 system 2.05 elapsed 148% CPU time.9.ptmalloc.16384:12.07 user 8.13 system 6.55 elapsed 308% CPU time.9.tcmalloc.16384:2.85 user 0.05 system 2.75 elapsed 105% CPU time.9.ptmalloc.32768:13.99 user 29.65 system 18.02 elapsed 242% CPU time.9.tcmalloc.32768:4.98 user 0.06 system 5.13 elapsed 98% CPU time.9.ptmalloc.65536:16.89 user 70.42 system 42.11 elapsed 207% CPU time.9.tcmalloc.65536:5.55 user 0.04 system 5.65 elapsed 98% CPU time.9.ptmalloc.131072:18.53 user 94.11 system 61.17 elapsed 184% CPU time.9.tcmalloc.131072:8.06 user 0.04 system 8.16 elapsed 99% CPU time.10.ptmalloc.64:9.81 user 5.70 system 7.42 elapsed 208% CPU time.10.tcmalloc.64:4.43 user 0.03 system 1.20 elapsed 370% CPU time.10.ptmalloc.128:12.69 user 7.81 system 9.02 elapsed 227% CPU time.10.tcmalloc.128:4.27 user 0.02 system 1.13 elapsed 378% CPU time.10.ptmalloc.256:15.04 user 9.53 system 9.92 elapsed 247% CPU time.10.tcmalloc.256:4.23 user 0.02 system 1.09 elapsed 388% CPU time.10.ptmalloc.512:17.30 user 10.46 system 10.61 elapsed 261% CPU time.10.tcmalloc.512:4.14 user 0.05 system 1.10 elapsed 379% CPU time.10.ptmalloc.1024:16.96 user 9.38 system 9.30 elapsed 283% CPU time.10.tcmalloc.1024:4.27 user 0.06 system 1.18 elapsed 366% CPU time.10.ptmalloc.2048:8.07 user 0.03 system 2.06 elapsed 393% CPU time.10.tcmalloc.2048:4.49 user 0.07 system 1.33 elapsed 342% CPU time.10.ptmalloc.4096:8.66 user 0.25 system 2.25 elapsed 394% CPU time.10.tcmalloc.4096:3.61 user 0.05 system 1.78 elapsed 205% CPU time.10.ptmalloc.8192:21.52 user 17.43 system 10.41 elapsed 374% CPU time.10.tcmalloc.8192:3.59 user 0.10 system 2.33 elapsed 158% CPU time.10.ptmalloc.16384:20.55 user 24.85 system 12.55 elapsed 361% CPU time.10.tcmalloc.16384:3.29 user 0.04 system 3.22 elapsed 103% CPU time.10.ptmalloc.32768:15.23 user 38.13 system 22.49 elapsed 237% CPU time.10.tcmalloc.32768:5.62 user 0.05 system 5.72 elapsed 99% CPU time.10.ptmalloc.65536:19.80 user 85.42 system 49.98 elapsed 210% CPU time.10.tcmalloc.65536:6.23 user 0.09 system 6.36 elapsed 99% CPU time.10.ptmalloc.131072:20.91 user 106.97 system 69.08 elapsed 185% CPU time.10.tcmalloc.131072:8.94 user 0.09 system 9.09 elapsed 99% CPU time.11.ptmalloc.64:10.82 user 6.34 system 7.92 elapsed 216% CPU time.11.tcmalloc.64:4.80 user 0.03 system 1.24 elapsed 387% CPU time.11.ptmalloc.128:14.58 user 8.61 system 9.81 elapsed 236% CPU time.11.tcmalloc.128:4.65 user 0.03 system 1.21 elapsed 384% CPU time.11.ptmalloc.256:17.38 user 10.98 system 10.75 elapsed 263% CPU time.11.tcmalloc.256:4.51 user 0.03 system 1.18 elapsed 384% CPU time.11.ptmalloc.512:19.18 user 11.71 system 10.95 elapsed 282% CPU time.11.tcmalloc.512:4.57 user 0.02 system 1.19 elapsed 384% CPU time.11.ptmalloc.1024:19.94 user 12.41 system 10.48 elapsed 308% CPU time.11.tcmalloc.1024:4.71 user 0.05 system 1.29 elapsed 367% CPU time.11.ptmalloc.2048:8.70 user 0.04 system 2.35 elapsed 371% CPU time.11.tcmalloc.2048:4.97 user 0.07 system 1.43 elapsed 350% CPU time.11.ptmalloc.4096:22.47 user 18.43 system 10.82 elapsed 377% CPU time.11.tcmalloc.4096:4.22 user 0.03 system 1.91 elapsed 221% CPU time.11.ptmalloc.8192:11.61 user 2.38 system 3.73 elapsed 374% CPU time.11.tcmalloc.8192:3.74 user 0.09 system 2.46 elapsed 155% CPU time.11.ptmalloc.16384:14.13 user 13.38 system 9.60 elapsed 286% CPU time.11.tcmalloc.16384:3.61 user 0.03 system 3.63 elapsed 100% CPU time.11.ptmalloc.32768:17.92 user 43.84 system 26.74 elapsed 230% CPU time.11.tcmalloc.32768:6.31 user 0.03 system 6.45 elapsed 98% CPU time.11.ptmalloc.65536:22.40 user 96.38 system 58.30 elapsed 203% CPU time.11.tcmalloc.65536:6.92 user 0.12 system 6.98 elapsed 100% CPU time.11.ptmalloc.131072:21.03 user 108.04 system 72.78 elapsed 177% CPU time.11.tcmalloc.131072:9.79 user 0.08 system 9.94 elapsed 99% CPU time.12.ptmalloc.64:12.23 user 7.16 system 8.38 elapsed 231% CPU time.12.tcmalloc.64:5.21 user 0.05 system 1.41 elapsed 371% CPU time.12.ptmalloc.128:16.97 user 10.19 system 10.47 elapsed 259% CPU time.12.tcmalloc.128:5.10 user 0.02 system 1.31 elapsed 390% CPU time.12.ptmalloc.256:19.99 user 12.10 system 11.57 elapsed 277% CPU time.12.tcmalloc.256:5.01 user 0.03 system 1.29 elapsed 390% CPU time.12.ptmalloc.512:21.85 user 12.66 system 11.46 elapsed 300% CPU time.12.tcmalloc.512:5.05 user 0.00 system 1.32 elapsed 379% CPU time.12.ptmalloc.1024:9.40 user 0.04 system 2.40 elapsed 393% CPU time.12.tcmalloc.1024:5.14 user 0.02 system 1.39 elapsed 369% CPU time.12.ptmalloc.2048:9.72 user 0.04 system 2.49 elapsed 391% CPU time.12.tcmalloc.2048:5.74 user 0.05 system 1.62 elapsed 355% CPU time.12.ptmalloc.4096:10.64 user 0.20 system 2.75 elapsed 393% CPU time.12.tcmalloc.4096:4.45 user 0.03 system 2.04 elapsed 218% CPU time.12.ptmalloc.8192:12.66 user 3.30 system 4.30 elapsed 371% CPU time.12.tcmalloc.8192:4.21 user 0.13 system 2.65 elapsed 163% CPU time.12.ptmalloc.16384:15.73 user 15.68 system 11.14 elapsed 281% CPU time.12.tcmalloc.16384:4.17 user 0.06 system 4.10 elapsed 102% CPU time.12.ptmalloc.32768:19.45 user 56.00 system 32.74 elapsed 230% CPU time.12.tcmalloc.32768:6.96 user 0.08 system 7.14 elapsed 98% CPU time.12.ptmalloc.65536:23.33 user 110.45 system 65.06 elapsed 205% CPU time.12.tcmalloc.65536:7.77 user 0.15 system 7.72 elapsed 102% CPU time.12.ptmalloc.131072:24.03 user 124.74 system 82.94 elapsed 179% CPU time.12.tcmalloc.131072:10.81 user 0.06 system 10.94 elapsed 99% CPU time.13.ptmalloc.64:14.08 user 7.60 system 8.85 elapsed 244% CPU time.13.tcmalloc.64:5.51 user 0.01 system 1.47 elapsed 375% CPU time.13.ptmalloc.128:18.20 user 10.98 system 10.99 elapsed 265% CPU time.13.tcmalloc.128:5.34 user 0.01 system 1.39 elapsed 382% CPU time.13.ptmalloc.256:21.48 user 13.94 system 12.25 elapsed 289% CPU time.13.tcmalloc.256:5.33 user 0.01 system 1.39 elapsed 381% CPU time.13.ptmalloc.512:24.22 user 14.84 system 12.97 elapsed 301% CPU time.13.tcmalloc.512:5.49 user 0.02 system 1.41 elapsed 389% CPU time.13.ptmalloc.1024:25.26 user 17.03 system 12.85 elapsed 328% CPU time.13.tcmalloc.1024:5.65 user 0.04 system 1.50 elapsed 378% CPU time.13.ptmalloc.2048:10.41 user 0.03 system 2.69 elapsed 387% CPU time.13.tcmalloc.2048:5.93 user 0.10 system 1.77 elapsed 339% CPU time.13.ptmalloc.4096:11.37 user 0.52 system 3.04 elapsed 391% CPU time.13.tcmalloc.4096:5.08 user 0.11 system 2.22 elapsed 233% CPU time.13.ptmalloc.8192:21.76 user 18.54 system 10.58 elapsed 380% CPU time.13.tcmalloc.8192:5.04 user 0.16 system 2.93 elapsed 177% CPU time.13.ptmalloc.16384:26.35 user 34.47 system 17.01 elapsed 357% CPU time.13.tcmalloc.16384:4.66 user 0.04 system 4.66 elapsed 100% CPU time.13.ptmalloc.32768:21.41 user 63.59 system 38.14 elapsed 222% CPU time.13.tcmalloc.32768:7.71 user 0.03 system 7.83 elapsed 98% CPU time.13.ptmalloc.65536:24.99 user 120.80 system 71.59 elapsed 203% CPU time.13.tcmalloc.65536:8.87 user 0.64 system 8.37 elapsed 113% CPU time.13.ptmalloc.131072:25.97 user 142.27 system 96.00 elapsed 175% CPU time.13.tcmalloc.131072:11.48 user 0.06 system 11.67 elapsed 98% CPU time.14.ptmalloc.64:15.01 user 9.11 system 9.41 elapsed 256% CPU time.14.tcmalloc.64:5.98 user 0.02 system 1.58 elapsed 378% CPU time.14.ptmalloc.128:20.34 user 12.72 system 11.62 elapsed 284% CPU time.14.tcmalloc.128:5.88 user 0.04 system 1.51 elapsed 392% CPU time.14.ptmalloc.256:24.26 user 14.95 system 12.92 elapsed 303% CPU time.14.tcmalloc.256:5.72 user 0.02 system 1.50 elapsed 381% CPU time.14.ptmalloc.512:27.28 user 16.45 system 13.89 elapsed 314% CPU time.14.tcmalloc.512:5.99 user 0.02 system 1.54 elapsed 388% CPU time.14.ptmalloc.1024:25.84 user 16.99 system 12.61 elapsed 339% CPU time.14.tcmalloc.1024:5.94 user 0.06 system 1.59 elapsed 375% CPU time.14.ptmalloc.2048:11.96 user 0.01 system 3.12 elapsed 382% CPU time.14.tcmalloc.2048:6.39 user 0.07 system 1.79 elapsed 359% CPU time.14.ptmalloc.4096:20.19 user 11.77 system 8.26 elapsed 386% CPU time.14.tcmalloc.4096:5.65 user 0.05 system 2.32 elapsed 244% CPU time.14.ptmalloc.8192:22.01 user 16.39 system 9.89 elapsed 387% CPU time.14.tcmalloc.8192:5.44 user 0.11 system 3.07 elapsed 180% CPU time.14.ptmalloc.16384:18.15 user 22.40 system 15.02 elapsed 269% CPU time.14.tcmalloc.16384:5.29 user 0.08 system 5.34 elapsed 100% CPU time.14.ptmalloc.32768:24.29 user 72.07 system 42.63 elapsed 225% CPU time.14.tcmalloc.32768:8.47 user 0.02 system 8.62 elapsed 98% CPU time.14.ptmalloc.65536:27.63 user 130.56 system 78.64 elapsed 201% CPU time.14.tcmalloc.65536:9.85 user 1.61 system 9.04 elapsed 126% CPU time.14.ptmalloc.131072:28.87 user 146.38 system 100.54 elapsed 174% CPU time.14.tcmalloc.131072:12.46 user 0.11 system 12.71 elapsed 98% CPU time.15.ptmalloc.64:16.25 user 10.05 system 9.82 elapsed 267% CPU time.15.tcmalloc.64:6.30 user 0.02 system 1.64 elapsed 385% CPU time.15.ptmalloc.128:22.33 user 13.23 system 12.24 elapsed 290% CPU time.15.tcmalloc.128:6.08 user 0.03 system 1.59 elapsed 384% CPU time.15.ptmalloc.256:26.56 user 16.57 system 13.70 elapsed 314% CPU time.15.tcmalloc.256:6.14 user 0.03 system 1.61 elapsed 382% CPU time.15.ptmalloc.512:29.68 user 18.08 system 14.56 elapsed 327% CPU time.15.tcmalloc.512:6.12 user 0.04 system 1.68 elapsed 364% CPU time.15.ptmalloc.1024:17.07 user 6.22 system 6.26 elapsed 371% CPU time.15.tcmalloc.1024:6.38 user 0.02 system 1.75 elapsed 364% CPU time.15.ptmalloc.2048:26.64 user 17.25 system 11.51 elapsed 381% CPU time.15.tcmalloc.2048:6.77 user 0.18 system 1.92 elapsed 361% CPU time.15.ptmalloc.4096:13.21 user 0.74 system 3.57 elapsed 390% CPU time.15.tcmalloc.4096:6.03 user 0.09 system 2.36 elapsed 258% CPU time.15.ptmalloc.8192:22.92 user 17.51 system 10.50 elapsed 385% CPU time.15.tcmalloc.8192:5.96 user 0.12 system 3.36 elapsed 180% CPU time.15.ptmalloc.16384:19.37 user 24.87 system 16.69 elapsed 264% CPU time.15.tcmalloc.16384:5.88 user 0.07 system 5.84 elapsed 101% CPU time.15.ptmalloc.32768:25.43 user 82.30 system 48.98 elapsed 219% CPU time.15.tcmalloc.32768:9.11 user 0.05 system 9.30 elapsed 98% CPU time.15.ptmalloc.65536:29.31 user 140.07 system 83.78 elapsed 202% CPU time.15.tcmalloc.65536:8.51 user 1.59 system 9.75 elapsed 103% CPU time.15.ptmalloc.131072:30.22 user 163.15 system 109.50 elapsed 176% CPU time.15.tcmalloc.131072:13.35 user 0.10 system 13.54 elapsed 99% CPU time.16.ptmalloc.64:17.69 user 10.11 system 10.11 elapsed 274% CPU time.16.tcmalloc.64:6.63 user 0.04 system 1.72 elapsed 387% CPU time.16.ptmalloc.128:23.05 user 14.37 system 12.75 elapsed 293% CPU time.16.tcmalloc.128:6.61 user 0.02 system 1.71 elapsed 387% CPU time.16.ptmalloc.256:29.11 user 19.35 system 14.57 elapsed 332% CPU time.16.tcmalloc.256:6.62 user 0.03 system 1.73 elapsed 382% CPU time.16.ptmalloc.512:31.65 user 18.71 system 14.71 elapsed 342% CPU time.16.tcmalloc.512:6.63 user 0.04 system 1.73 elapsed 383% CPU time.16.ptmalloc.1024:31.99 user 21.22 system 14.87 elapsed 357% CPU time.16.tcmalloc.1024:6.81 user 0.04 system 1.79 elapsed 382% CPU time.16.ptmalloc.2048:30.35 user 21.36 system 13.30 elapsed 388% CPU time.16.tcmalloc.2048:6.91 user 0.50 system 2.01 elapsed 367% CPU time.16.ptmalloc.4096:18.85 user 7.18 system 6.61 elapsed 393% CPU time.16.tcmalloc.4096:6.70 user 0.10 system 2.62 elapsed 259% CPU time.16.ptmalloc.8192:22.19 user 14.30 system 9.37 elapsed 389% CPU time.16.tcmalloc.8192:6.18 user 0.19 system 3.58 elapsed 177% CPU time.16.ptmalloc.16384:31.22 user 46.78 system 22.92 elapsed 340% CPU time.16.tcmalloc.16384:6.79 user 0.07 system 6.86 elapsed 99% CPU time.16.ptmalloc.32768:27.31 user 87.32 system 52.00 elapsed 220% CPU time.16.tcmalloc.32768:9.85 user 0.06 system 10.07 elapsed 98% CPU time.16.ptmalloc.65536:32.83 user 160.62 system 95.67 elapsed 202% CPU time.16.tcmalloc.65536:10.18 user 0.09 system 10.41 elapsed 98% CPU time.16.ptmalloc.131072:31.99 user 173.41 system 115.98 elapsed 177% CPU time.16.tcmalloc.131072:14.52 user 0.05 system 14.67 elapsed 99% CPU time.17.ptmalloc.64:19.38 user 11.61 system 10.61 elapsed 291% CPU time.17.tcmalloc.64:7.11 user 0.02 system 1.84 elapsed 386% CPU time.17.ptmalloc.128:26.25 user 16.15 system 13.53 elapsed 313% CPU time.17.tcmalloc.128:6.97 user 0.02 system 1.78 elapsed 390% CPU time.17.ptmalloc.256:30.66 user 18.36 system 14.97 elapsed 327% CPU time.17.tcmalloc.256:6.94 user 0.04 system 1.80 elapsed 387% CPU time.17.ptmalloc.512:33.71 user 22.79 system 15.95 elapsed 354% CPU time.17.tcmalloc.512:7.00 user 0.02 system 1.83 elapsed 381% CPU time.17.ptmalloc.1024:33.49 user 22.47 system 15.00 elapsed 373% CPU time.17.tcmalloc.1024:7.20 user 0.03 system 1.90 elapsed 380% CPU time.17.ptmalloc.2048:23.87 user 11.92 system 9.26 elapsed 386% CPU time.17.tcmalloc.2048:6.01 user 1.83 system 2.15 elapsed 363% CPU time.17.ptmalloc.4096:14.69 user 0.95 system 3.98 elapsed 392% CPU time.17.tcmalloc.4096:7.25 user 0.10 system 2.62 elapsed 279% CPU time.17.ptmalloc.8192:22.44 user 13.52 system 9.39 elapsed 382% CPU time.17.tcmalloc.8192:7.21 user 0.24 system 3.95 elapsed 188% CPU time.17.ptmalloc.16384:23.33 user 33.67 system 21.89 elapsed 260% CPU time.17.tcmalloc.16384:7.28 user 0.06 system 7.10 elapsed 103% CPU time.17.ptmalloc.32768:29.35 user 103.11 system 60.36 elapsed 219% CPU time.17.tcmalloc.32768:10.53 user 0.07 system 10.71 elapsed 98% CPU time.17.ptmalloc.65536:33.21 user 170.89 system 100.84 elapsed 202% CPU time.17.tcmalloc.65536:10.85 user 0.05 system 11.04 elapsed 98% CPU time.17.ptmalloc.131072:34.98 user 182.87 system 122.05 elapsed 178% CPU time.17.tcmalloc.131072:15.27 user 0.09 system 15.49 elapsed 99% CPU time.18.ptmalloc.64:21.08 user 12.15 system 11.43 elapsed 290% CPU time.18.tcmalloc.64:7.45 user 0.03 system 1.95 elapsed 383% CPU time.18.ptmalloc.128:27.65 user 17.26 system 14.03 elapsed 320% CPU time.18.tcmalloc.128:7.46 user 0.03 system 1.92 elapsed 389% CPU time.18.ptmalloc.256:32.78 user 20.55 system 15.70 elapsed 339% CPU time.18.tcmalloc.256:7.31 user 0.02 system 1.88 elapsed 389% CPU time.18.ptmalloc.512:33.31 user 20.06 system 15.05 elapsed 354% CPU time.18.tcmalloc.512:7.33 user 0.02 system 1.91 elapsed 383% CPU time.18.ptmalloc.1024:35.46 user 24.83 system 16.30 elapsed 369% CPU time.18.tcmalloc.1024:7.60 user 0.06 system 2.05 elapsed 373% CPU time.18.ptmalloc.2048:19.98 user 6.80 system 6.76 elapsed 395% CPU time.18.tcmalloc.2048:6.89 user 1.29 system 2.28 elapsed 357% CPU time.18.ptmalloc.4096:15.99 user 0.93 system 4.32 elapsed 391% CPU time.18.tcmalloc.4096:7.70 user 0.10 system 2.77 elapsed 280% CPU time.18.ptmalloc.8192:23.51 user 14.84 system 9.97 elapsed 384% CPU time.18.tcmalloc.8192:8.16 user 0.27 system 4.25 elapsed 197% CPU time.18.ptmalloc.16384:35.79 user 52.41 system 26.47 elapsed 333% CPU time.18.tcmalloc.16384:7.81 user 0.07 system 7.61 elapsed 103% CPU time.18.ptmalloc.32768:33.17 user 116.07 system 68.64 elapsed 217% CPU time.18.tcmalloc.32768:11.34 user 0.13 system 11.57 elapsed 99% CPU time.18.ptmalloc.65536:35.91 user 177.82 system 106.75 elapsed 200% CPU time.18.tcmalloc.65536:11.54 user 0.06 system 11.74 elapsed 98% CPU time.18.ptmalloc.131072:36.38 user 187.18 system 126.91 elapsed 176% CPU time.18.tcmalloc.131072:16.34 user 0.05 system 16.43 elapsed 99% CPU time.19.ptmalloc.64:22.90 user 13.23 system 11.82 elapsed 305% CPU time.19.tcmalloc.64:7.81 user 0.02 system 2.01 elapsed 388% CPU time.19.ptmalloc.128:30.13 user 18.58 system 14.77 elapsed 329% CPU time.19.tcmalloc.128:7.74 user 0.02 system 2.01 elapsed 386% CPU time.19.ptmalloc.256:35.33 user 21.41 system 16.35 elapsed 347% CPU time.19.tcmalloc.256:7.79 user 0.04 system 2.04 elapsed 382% CPU time.19.ptmalloc.512:39.30 user 26.22 system 17.84 elapsed 367% CPU time.19.tcmalloc.512:7.80 user 0.06 system 2.05 elapsed 381% CPU time.19.ptmalloc.1024:35.70 user 23.90 system 15.66 elapsed 380% CPU time.19.tcmalloc.1024:8.08 user 0.06 system 2.16 elapsed 376% CPU time.19.ptmalloc.2048:18.33 user 3.28 system 5.47 elapsed 394% CPU time.19.tcmalloc.2048:8.71 user 0.05 system 2.40 elapsed 363% CPU time.19.ptmalloc.4096:16.94 user 0.89 system 4.64 elapsed 383% CPU time.19.tcmalloc.4096:8.21 user 0.07 system 2.85 elapsed 289% CPU time.19.ptmalloc.8192:25.61 user 17.15 system 11.33 elapsed 377% CPU time.19.tcmalloc.8192:8.79 user 0.30 system 4.58 elapsed 198% CPU time.19.ptmalloc.16384:27.11 user 46.66 system 29.67 elapsed 248% CPU time.19.tcmalloc.16384:8.64 user 0.05 system 8.58 elapsed 101% CPU time.19.ptmalloc.32768:33.80 user 117.69 system 70.65 elapsed 214% CPU time.19.tcmalloc.32768:11.88 user 0.07 system 12.04 elapsed 99% CPU time.19.ptmalloc.65536:36.90 user 180.21 system 109.01 elapsed 199% CPU time.19.tcmalloc.65536:12.17 user 0.07 system 12.40 elapsed 98% CPU time.19.ptmalloc.131072:38.50 user 195.15 system 132.81 elapsed 175% CPU time.19.tcmalloc.131072:17.44 user 0.10 system 17.65 elapsed 99% CPU time.20.ptmalloc.64:23.37 user 13.74 system 11.86 elapsed 312% CPU time.20.tcmalloc.64:8.18 user 0.02 system 2.10 elapsed 389% CPU time.20.ptmalloc.128:31.29 user 19.97 system 15.53 elapsed 329% CPU time.20.tcmalloc.128:8.03 user 0.02 system 2.12 elapsed 378% CPU time.20.ptmalloc.256:38.40 user 25.65 system 18.25 elapsed 350% CPU time.20.tcmalloc.256:8.05 user 0.05 system 2.12 elapsed 380% CPU time.20.ptmalloc.512:40.60 user 27.70 system 18.46 elapsed 369% CPU time.20.tcmalloc.512:8.22 user 0.08 system 2.20 elapsed 375% CPU time.20.ptmalloc.1024:40.02 user 28.52 system 17.56 elapsed 390% CPU time.20.tcmalloc.1024:8.50 user 0.07 system 2.19 elapsed 391% CPU time.20.ptmalloc.2048:16.13 user 0.23 system 4.23 elapsed 386% CPU time.20.tcmalloc.2048:8.98 user 0.03 system 2.45 elapsed 367% CPU time.20.ptmalloc.4096:17.14 user 0.87 system 4.60 elapsed 391% CPU time.20.tcmalloc.4096:8.93 user 0.20 system 2.97 elapsed 306% CPU time.20.ptmalloc.8192:25.24 user 17.16 system 11.14 elapsed 380% CPU time.20.tcmalloc.8192:9.78 user 0.30 system 5.14 elapsed 195% CPU time.20.ptmalloc.16384:39.93 user 60.36 system 30.24 elapsed 331% CPU time.20.tcmalloc.16384:9.57 user 0.09 system 9.43 elapsed 102% CPU time.20.ptmalloc.32768:36.44 user 130.23 system 76.79 elapsed 217% CPU time.20.tcmalloc.32768:12.71 user 0.09 system 12.97 elapsed 98% CPU time.20.ptmalloc.65536:39.79 user 202.09 system 120.34 elapsed 200% CPU time.20.tcmalloc.65536:12.93 user 0.06 system 13.15 elapsed 98% CPU time.20.ptmalloc.131072:41.91 user 202.76 system 138.51 elapsed 176% CPU time.20.tcmalloc.131072:18.23 user 0.07 system 18.42 elapsed 99% CPU gperftools-2.4/doc/tcmalloc-opspercpusec.vs.threads.1024.bytes.png0000644000000000000000000000353212371745612022021 00000000000000PNG  IHDRP8=tEXtSoftwaregnuplot version 3.7 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Last modified

This is the heap profiler we use at Google, to explore how C++ programs manage memory. This facility can be useful for

  • Figuring out what is in the program heap at any given time
  • Locating memory leaks
  • Finding places that do a lot of allocation

The profiling system instruments all allocations and frees. It keeps track of various pieces of information per allocation site. An allocation site is defined as the active stack trace at the call to malloc, calloc, realloc, or, new.

There are three parts to using it: linking the library into an application, running the code, and analyzing the output.

Linking in the Library

To install the heap profiler into your executable, add -ltcmalloc to the link-time step for your executable. Also, while we don't necessarily recommend this form of usage, it's possible to add in the profiler at run-time using LD_PRELOAD: 

% env LD_PRELOAD="/usr/lib/libtcmalloc.so" <binary>

This does not turn on heap profiling; it just inserts the code. For that reason, it's practical to just always link -ltcmalloc into a binary while developing; that's what we do at Google. (However, since any user can turn on the profiler by setting an environment variable, it's not necessarily recommended to install profiler-linked binaries into a production, running system.) Note that if you wish to use the heap profiler, you must also use the tcmalloc memory-allocation library. There is no way currently to use the heap profiler separate from tcmalloc.

Running the Code

There are several alternatives to actually turn on heap profiling for a given run of an executable:

  1. Define the environment variable HEAPPROFILE to the filename to dump the profile to. For instance, to profile /usr/local/bin/my_binary_compiled_with_tcmalloc:

    % env HEAPPROFILE=/tmp/mybin.hprof /usr/local/bin/my_binary_compiled_with_tcmalloc

  2. In your code, bracket the code you want profiled in calls to HeapProfilerStart() and HeapProfilerStop(). (These functions are declared in <gperftools/heap-profiler.h>.) HeapProfilerStart() will take the profile-filename-prefix as an argument. Then, as often as you'd like before calling HeapProfilerStop(), you can use HeapProfilerDump() or GetHeapProfile() to examine the profile. In case it's useful, IsHeapProfilerRunning() will tell you whether you've already called HeapProfilerStart() or not.

For security reasons, heap profiling will not write to a file -- and is thus not usable -- for setuid programs.

Modifying Runtime Behavior

You can more finely control the behavior of the heap profiler via environment variables.

HEAP_PROFILE_ALLOCATION_INTERVAL default: 1073741824 (1 Gb) Dump heap profiling information each time the specified number of bytes has been allocated by the program.
HEAP_PROFILE_INUSE_INTERVAL default: 104857600 (100 Mb) Dump heap profiling information whenever the high-water memory usage mark increases by the specified number of bytes.
HEAP_PROFILE_TIME_INTERVAL default: 104857600 (100 Mb) Dump heap profiling information each time the specified number of seconds has elapsed.
HEAP_PROFILE_MMAP default: false Profile mmap, mremap and sbrk calls in addition to malloc, calloc, realloc, and new. NOTE: this causes the profiler to profile calls internal to tcmalloc, since tcmalloc and friends use mmap and sbrk internally for allocations. One partial solution is to filter these allocations out when running pprof, with something like pprof --ignore='DoAllocWithArena|SbrkSysAllocator::Alloc|MmapSysAllocator::Alloc.
HEAP_PROFILE_ONLY_MMAP default: false Only profile mmap, mremap, and sbrk calls; do not profile malloc, calloc, realloc, or new.
HEAP_PROFILE_MMAP_LOG default: false Log mmap/munmap calls.

Checking for Leaks

You can use the heap profiler to manually check for leaks, for instance by reading the profiler output and looking for large allocations. However, for that task, it's easier to use the automatic heap-checking facility built into tcmalloc.

Analyzing the Output

If heap-profiling is turned on in a program, the program will periodically write profiles to the filesystem. The sequence of profiles will be named:

           <prefix>.0000.heap
           <prefix>.0001.heap
           <prefix>.0002.heap
           ...

where <prefix> is the filename-prefix supplied when running the code (e.g. via the HEAPPROFILE environment variable). Note that if the supplied prefix does not start with a /, the profile files will be written to the program's working directory.

The profile output can be viewed by passing it to the pprof tool -- the same tool that's used to analyze CPU profiles.

Here are some examples. These examples assume the binary is named gfs_master, and a sequence of heap profile files can be found in files named:

  /tmp/profile.0001.heap
  /tmp/profile.0002.heap
  ...
  /tmp/profile.0100.heap

Why is a process so big

    % pprof --gv gfs_master /tmp/profile.0100.heap

This command will pop-up a gv window that displays the profile information as a directed graph. Here is a portion of the resulting output:

A few explanations:
  • GFS_MasterChunk::AddServer accounts for 255.6 MB of the live memory, which is 25% of the total live memory.
  • GFS_MasterChunkTable::UpdateState is directly accountable for 176.2 MB of the live memory (i.e., it directly allocated 176.2 MB that has not been freed yet). Furthermore, it and its callees are responsible for 729.9 MB. The labels on the outgoing edges give a good indication of the amount allocated by each callee.

Comparing Profiles

You often want to skip allocations during the initialization phase of a program so you can find gradual memory leaks. One simple way to do this is to compare two profiles -- both collected after the program has been running for a while. Specify the name of the first profile using the --base option. For example:

   % pprof --base=/tmp/profile.0004.heap gfs_master /tmp/profile.0100.heap

The memory-usage in /tmp/profile.0004.heap will be subtracted from the memory-usage in /tmp/profile.0100.heap and the result will be displayed.

Text display

% pprof --text gfs_master /tmp/profile.0100.heap
   255.6  24.7%  24.7%    255.6  24.7% GFS_MasterChunk::AddServer
   184.6  17.8%  42.5%    298.8  28.8% GFS_MasterChunkTable::Create
   176.2  17.0%  59.5%    729.9  70.5% GFS_MasterChunkTable::UpdateState
   169.8  16.4%  75.9%    169.8  16.4% PendingClone::PendingClone
    76.3   7.4%  83.3%     76.3   7.4% __default_alloc_template::_S_chunk_alloc
    49.5   4.8%  88.0%     49.5   4.8% hashtable::resize
   ...

  • The first column contains the direct memory use in MB.
  • The fourth column contains memory use by the procedure and all of its callees.
  • The second and fifth columns are just percentage representations of the numbers in the first and fourth columns.
  • The third column is a cumulative sum of the second column (i.e., the kth entry in the third column is the sum of the first k entries in the second column.)

Ignoring or focusing on specific regions

The following command will give a graphical display of a subset of the call-graph. Only paths in the call-graph that match the regular expression DataBuffer are included:

% pprof --gv --focus=DataBuffer gfs_master /tmp/profile.0100.heap

Similarly, the following command will omit all paths subset of the call-graph. All paths in the call-graph that match the regular expression DataBuffer are discarded:

% pprof --gv --ignore=DataBuffer gfs_master /tmp/profile.0100.heap

Total allocations + object-level information

All of the previous examples have displayed the amount of in-use space. I.e., the number of bytes that have been allocated but not freed. You can also get other types of information by supplying a flag to pprof:

--inuse_space Display the number of in-use megabytes (i.e. space that has been allocated but not freed). This is the default.
--inuse_objects Display the number of in-use objects (i.e. number of objects that have been allocated but not freed).
--alloc_space Display the number of allocated megabytes. This includes the space that has since been de-allocated. Use this if you want to find the main allocation sites in the program.
--alloc_objects Display the number of allocated objects. This includes the objects that have since been de-allocated. Use this if you want to find the main allocation sites in the program.

Interactive mode

By default -- if you don't specify any flags to the contrary -- pprof runs in interactive mode. At the (pprof) prompt, you can run many of the commands described above. You can type help for a list of what commands are available in interactive mode.

Caveats

  • Heap profiling requires the use of libtcmalloc. This requirement may be removed in a future version of the heap profiler, and the heap profiler separated out into its own library.
  • If the program linked in a library that was not compiled with enough symbolic information, all samples associated with the library may be charged to the last symbol found in the program before the library. This will artificially inflate the count for that symbol.
  • If you run the program on one machine, and profile it on another, and the shared libraries are different on the two machines, the profiling output may be confusing: samples that fall within the shared libaries may be assigned to arbitrary procedures.
  • Several libraries, such as some STL implementations, do their own memory management. This may cause strange profiling results. We have code in libtcmalloc to cause STL to use tcmalloc for memory management (which in our tests is better than STL's internal management), though it only works for some STL implementations.
  • If your program forks, the children will also be profiled (since they inherit the same HEAPPROFILE setting). Each process is profiled separately; to distinguish the child profiles from the parent profile and from each other, all children will have their process-id attached to the HEAPPROFILE name.
  • Due to a hack we make to work around a possible gcc bug, your profiles may end up named strangely if the first character of your HEAPPROFILE variable has ascii value greater than 127. This should be exceedingly rare, but if you need to use such a name, just set prepend ./ to your filename: HEAPPROFILE=./Ägypten.
Sanjay Ghemawat
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This is the heap checker we use at Google to detect memory leaks in C++ programs. There are three parts to using it: linking the library into an application, running the code, and analyzing the output.

Linking in the Library

The heap-checker is part of tcmalloc, so to install the heap checker into your executable, add -ltcmalloc to the link-time step for your executable. Also, while we don't necessarily recommend this form of usage, it's possible to add in the profiler at run-time using LD_PRELOAD:

% env LD_PRELOAD="/usr/lib/libtcmalloc.so"

This does not turn on heap checking; it just inserts the code. For that reason, it's practical to just always link -ltcmalloc into a binary while developing; that's what we do at Google. (However, since any user can turn on the profiler by setting an environment variable, it's not necessarily recommended to install heapchecker-linked binaries into a production, running system.) Note that if you wish to use the heap checker, you must also use the tcmalloc memory-allocation library. There is no way currently to use the heap checker separate from tcmalloc.

Running the Code

Note: For security reasons, heap profiling will not write to a file -- and is thus not usable -- for setuid programs.

Whole-program Heap Leak Checking

The recommended way to use the heap checker is in "whole program" mode. In this case, the heap-checker starts tracking memory allocations before the start of main(), and checks again at program-exit. If it finds any memory leaks -- that is, any memory not pointed to by objects that are still "live" at program-exit -- it aborts the program (via exit(1)) and prints a message describing how to track down the memory leak (using pprof).

The heap-checker records the stack trace for each allocation while it is active. This causes a significant increase in memory usage, in addition to slowing your program down.

Here's how to run a program with whole-program heap checking:

  1. Define the environment variable HEAPCHECK to the type of heap-checking to do. For instance, to heap-check /usr/local/bin/my_binary_compiled_with_tcmalloc:

    % env HEAPCHECK=normal /usr/local/bin/my_binary_compiled_with_tcmalloc

No other action is required.

Note that since the heap-checker uses the heap-profiling framework internally, it is not possible to run both the heap-checker and heap profiler at the same time.

Flavors of Heap Checking

These are the legal values when running a whole-program heap check:

  1. minimal
  2. normal
  3. strict
  4. draconian

"Minimal" heap-checking starts as late as possible in a initialization, meaning you can leak some memory in your initialization routines (that run before main(), say), and not trigger a leak message. If you frequently (and purposefully) leak data in one-time global initializers, "minimal" mode is useful for you. Otherwise, you should avoid it for stricter modes.

"Normal" heap-checking tracks live objects and reports a leak for any data that is not reachable via a live object when the program exits.

"Strict" heap-checking is much like "normal" but has a few extra checks that memory isn't lost in global destructors. In particular, if you have a global variable that allocates memory during program execution, and then "forgets" about the memory in the global destructor (say, by setting the pointer to it to NULL) without freeing it, that will prompt a leak message in "strict" mode, though not in "normal" mode.

"Draconian" heap-checking is appropriate for those who like to be very precise about their memory management, and want the heap-checker to help them enforce it. In "draconian" mode, the heap-checker does not do "live object" checking at all, so it reports a leak unless all allocated memory is freed before program exit. (However, you can use IgnoreObject() to re-enable liveness-checking on an object-by-object basis.)

"Normal" mode, as the name implies, is the one used most often at Google. It's appropriate for everyday heap-checking use.

In addition, there are two other possible modes:

  • as-is
  • local

as-is is the most flexible mode; it allows you to specify the various knobs of the heap checker explicitly. local activates the explicit heap-check instrumentation, but does not turn on any whole-program leak checking.

Tweaking whole-program checking

In some cases you want to check the whole program for memory leaks, but waiting for after main() exits to do the first whole-program leak check is waiting too long: e.g. in a long-running server one might wish to simply periodically check for leaks while the server is running. In this case, you can call the static method NoGlobalLeaks(), to verify no global leaks have happened as of that point in the program.

Alternately, doing the check after main() exits might be too late. Perhaps you have some objects that are known not to clean up properly at exit. You'd like to do the "at exit" check before those objects are destroyed (since while they're live, any memory they point to will not be considered a leak). In that case, you can call NoGlobalLeaks() manually, near the end of main(), and then call CancelGlobalCheck() to turn off the automatic post-main() check.

Finally, there's a helper macro for "strict" and "draconian" modes, which require all global memory to be freed before program exit. This freeing can be time-consuming and is often unnecessary, since libc cleans up all memory at program-exit for you. If you want the benefits of "strict"/"draconian" modes without the cost of all that freeing, look at REGISTER_HEAPCHECK_CLEANUP (in heap-checker.h). This macro allows you to mark specific cleanup code as active only when the heap-checker is turned on.

Explicit (Partial-program) Heap Leak Checking

Instead of whole-program checking, you can check certain parts of your code to verify they do not have memory leaks. This check verifies that between two parts of a program, no memory is allocated without being freed.

To use this kind of checking code, bracket the code you want checked by creating a HeapLeakChecker object at the beginning of the code segment, and call NoLeaks() at the end. These functions, and all others referred to in this file, are declared in <gperftools/heap-checker.h>.

Here's an example:

  HeapLeakChecker heap_checker("test_foo");
  {
    code that exercises some foo functionality;
    this code should not leak memory;
  }
  if (!heap_checker.NoLeaks()) assert(NULL == "heap memory leak");

Note that adding in the HeapLeakChecker object merely instruments the code for leak-checking. To actually turn on this leak-checking on a particular run of the executable, you must still run with the heap-checker turned on:

% env HEAPCHECK=local /usr/local/bin/my_binary_compiled_with_tcmalloc

If you want to do whole-program leak checking in addition to this manual leak checking, you can run in normal or some other mode instead: they'll run the "local" checks in addition to the whole-program check.

Disabling Heap-checking of Known Leaks

Sometimes your code has leaks that you know about and are willing to accept. You would like the heap checker to ignore them when checking your program. You can do this by bracketing the code in question with an appropriate heap-checking construct:

   ...
   {
     HeapLeakChecker::Disabler disabler;
     <leaky code>
   }
   ...
Any objects allocated by leaky code (including inside any routines called by leaky code) and any objects reachable from such objects are not reported as leaks.

Alternately, you can use IgnoreObject(), which takes a pointer to an object to ignore. That memory, and everything reachable from it (by following pointers), is ignored for the purposes of leak checking. You can call UnIgnoreObject() to undo the effects of IgnoreObject().

Tuning the Heap Checker

The heap leak checker has many options, some that trade off running time and accuracy, and others that increase the sensitivity at the risk of returning false positives. For most uses, the range covered by the heap-check flavors is enough, but in specialized cases more control can be helpful.

These options are specified via environment varaiables.

This first set of options controls sensitivity and accuracy. These options are ignored unless you run the heap checker in as-is mode.
HEAP_CHECK_AFTER_DESTRUCTORS Default: false When true, do the final leak check after all other global destructors have run. When false, do it after all REGISTER_HEAPCHECK_CLEANUP, typically much earlier in the global-destructor process.
HEAP_CHECK_IGNORE_THREAD_LIVE Default: true If true, ignore objects reachable from thread stacks and registers (that is, do not report them as leaks).
HEAP_CHECK_IGNORE_GLOBAL_LIVE Default: true If true, ignore objects reachable from global variables and data (that is, do not report them as leaks).

These options modify the behavior of whole-program leak checking.

HEAP_CHECK_MAX_LEAKS Default: 20 The maximum number of leaks to be printed to stderr (all leaks are still emitted to file output for pprof to visualize). If negative or zero, print all the leaks found.

These options apply to all types of leak checking.

HEAP_CHECK_IDENTIFY_LEAKS Default: false If true, generate the addresses of the leaked objects in the generated memory leak profile files.
HEAP_CHECK_TEST_POINTER_ALIGNMENT Default: false If true, check all leaks to see if they might be due to the use of unaligned pointers.
HEAP_CHECK_POINTER_SOURCE_ALIGNMENT Default: sizeof(void*) Alignment at which all pointers in memory are supposed to be located. Use 1 if any alignment is ok.
PPROF_PATH Default: pprof The location of the pprof executable.
HEAP_CHECK_DUMP_DIRECTORY Default: /tmp Where the heap-profile files are kept while the program is running.

Tips for Handling Detected Leaks

What do you do when the heap leak checker detects a memory leak? First, you should run the reported pprof command; hopefully, that is enough to track down the location where the leak occurs.

If the leak is a real leak, you should fix it!

If you are sure that the reported leaks are not dangerous and there is no good way to fix them, then you can use HeapLeakChecker::Disabler and/or HeapLeakChecker::IgnoreObject() to disable heap-checking for certain parts of the codebase.

In "strict" or "draconian" mode, leaks may be due to incomplete cleanup in the destructors of global variables. If you don't wish to augment the cleanup routines, but still want to run in "strict" or "draconian" mode, consider using REGISTER_HEAPCHECK_CLEANUP.

Hints for Debugging Detected Leaks

Sometimes it can be useful to not only know the exact code that allocates the leaked objects, but also the addresses of the leaked objects. Combining this e.g. with additional logging in the program one can then track which subset of the allocations made at a certain spot in the code are leaked.
To get the addresses of all leaked objects define the environment variable HEAP_CHECK_IDENTIFY_LEAKS to be 1. The object addresses will be reported in the form of addresses of fake immediate callers of the memory allocation routines. Note that the performance of doing leak-checking in this mode can be noticeably worse than the default mode.

One relatively common class of leaks that don't look real is the case of multiple initialization. In such cases the reported leaks are typically things that are linked from some global objects, which are initialized and say never modified again. The non-obvious cause of the leak is frequently the fact that the initialization code for these objects executes more than once.
E.g. if the code of some .cc file is made to be included twice into the binary, then the constructors for global objects defined in that file will execute twice thus leaking the things allocated on the first run.
Similar problems can occur if object initialization is done more explicitly e.g. on demand by a slightly buggy code that does not always ensure only-once initialization.

A more rare but even more puzzling problem can be use of not properly aligned pointers (maybe inside of not properly aligned objects). Normally such pointers are not followed by the leak checker, hence the objects reachable only via such pointers are reported as leaks. If you suspect this case define the environment variable HEAP_CHECK_TEST_POINTER_ALIGNMENT to be 1 and then look closely at the generated leak report messages.

How It Works

When a HeapLeakChecker object is constructed, it dumps a memory-usage profile named <prefix>.<name>-beg.heap to a temporary directory. When NoLeaks() is called (for whole-program checking, this happens automatically at program-exit), it dumps another profile, named <prefix>.<name>-end.heap. (<prefix> is typically determined automatically, and <name> is typically argv[0].) It then compares the two profiles. If the second profile shows more memory use than the first, the NoLeaks() function will return false. For "whole program" profiling, this will cause the executable to abort (via exit(1)). In all cases, it will print a message on how to process the dumped profiles to locate leaks.

Detecting Live Objects

At any point during a program's execution, all memory that is accessible at that time is considered "live." This includes global variables, and also any memory that is reachable by following pointers from a global variable. It also includes all memory reachable from the current stack frame and from current CPU registers (this captures local variables). Finally, it includes the thread equivalents of these: thread-local storage and thread heaps, memory reachable from thread-local storage and thread heaps, and memory reachable from thread CPU registers.

In all modes except "draconian," live memory is not considered to be a leak. We detect this by doing a liveness flood, traversing pointers to heap objects starting from some initial memory regions we know to potentially contain live pointer data. Note that this flood might potentially not find some (global) live data region to start the flood from. If you find such, please file a bug.

The liveness flood attempts to treat any properly aligned byte sequences as pointers to heap objects and thinks that it found a good pointer whenever the current heap memory map contains an object with the address whose byte representation we found. Some pointers into not-at-start of object will also work here.

As a result of this simple approach, it's possible (though unlikely) for the flood to be inexact and occasionally result in leaked objects being erroneously determined to be live. For instance, random bit patterns can happen to look like pointers to leaked heap objects. More likely, stale pointer data not corresponding to any live program variables can be still present in memory regions, especially in thread stacks. For instance, depending on how the local malloc is implemented, it may reuse a heap object address:

    char* p = new char[1];   // new might return 0x80000000, say.
    delete p;
    new char[1];             // new might return 0x80000000 again
    // This last new is a leak, but doesn't seem it: p looks like it points to it

In other words, imprecisions in the liveness flood mean that for any heap leak check we might miss some memory leaks. This means that for local leak checks, we might report a memory leak in the local area, even though the leak actually happened before the HeapLeakChecker object was constructed. Note that for whole-program checks, a leak report does always correspond to a real leak (since there's no "before" to have created a false-live object).

While this liveness flood approach is not very portable and not 100% accurate, it works in most cases and saves us from writing a lot of explicit clean up code and other hassles when dealing with thread data.

Visualizing Leak with pprof

The heap checker automatically prints basic leak info with stack traces of leaked objects' allocation sites, as well as a pprof command line that can be used to visualize the call-graph involved in these allocations. The latter can be much more useful for a human to see where/why the leaks happened, especially if the leaks are numerous.

Leak-checking and Threads

At the time of HeapLeakChecker's construction and during NoLeaks() calls, we grab a lock and then pause all other threads so other threads do not interfere with recording or analyzing the state of the heap.

In general, leak checking works correctly in the presence of threads. However, thread stack data liveness determination (via base/thread_lister.h) does not work when the program is running under GDB, because the ptrace functionality needed for finding threads is already hooked to by GDB. Conversely, leak checker's ptrace attempts might also interfere with GDB. As a result, GDB can result in potentially false leak reports. For this reason, the heap-checker turns itself off when running under GDB.

Also, thread_lister only works for Linux pthreads; leak checking is unlikely to handle other thread implementations correctly.

As mentioned in the discussion of liveness flooding, thread-stack liveness determination might mis-classify as reachable objects that very recently became unreachable (leaked). This can happen when the pointers to now-logically-unreachable objects are present in the active thread stack frame. In other words, trivial code like the following might not produce the expected leak checking outcome depending on how the compiled code works with the stack:

  int* foo = new int [20];
  HeapLeakChecker check("a_check");
  foo = NULL;
  // May fail to trigger.
  if (!heap_checker.NoLeaks()) assert(NULL == "heap memory leak");
Maxim Lifantsev
Last modified: Fri Jul 13 13:14:33 PDT 2007
gperftools-2.4/doc/cpuprofile.html0000644000000000000000000004532312440704174014247 00000000000000 Gperftools CPU Profiler

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This is the CPU profiler we use at Google. There are three parts to using it: linking the library into an application, running the code, and analyzing the output.

On the off-chance that you should need to understand it, the CPU profiler data file format is documented separately, here.

Linking in the Library

To install the CPU profiler into your executable, add -lprofiler to the link-time step for your executable. (It's also probably possible to add in the profiler at run-time using LD_PRELOAD, e.g. % env LD_PRELOAD="/usr/lib/libprofiler.so" <binary>, but this isn't necessarily recommended.)

This does not turn on CPU profiling; it just inserts the code. For that reason, it's practical to just always link -lprofiler into a binary while developing; that's what we do at Google. (However, since any user can turn on the profiler by setting an environment variable, it's not necessarily recommended to install profiler-linked binaries into a production, running system.)

Running the Code

There are several alternatives to actually turn on CPU profiling for a given run of an executable:

  1. Define the environment variable CPUPROFILE to the filename to dump the profile to. For instance, if you had a version of /bin/ls that had been linked against libprofiler, you could run:

    % env CPUPROFILE=ls.prof /bin/ls

  2. In addition to defining the environment variable CPUPROFILE you can also define CPUPROFILESIGNAL. This allows profiling to be controlled via the signal number that you specify. The signal number must be unused by the program under normal operation. Internally it acts as a switch, triggered by the signal, which is off by default. For instance, if you had a copy of /bin/chrome that had been been linked against libprofiler, you could run:

    % env CPUPROFILE=chrome.prof CPUPROFILESIGNAL=12 /bin/chrome &

    You can then trigger profiling to start:

    % killall -12 chrome

    Then after a period of time you can tell it to stop which will generate the profile:

    % killall -12 chrome

  3. In your code, bracket the code you want profiled in calls to ProfilerStart() and ProfilerStop(). (These functions are declared in <gperftools/profiler.h>.) ProfilerStart() will take the profile-filename as an argument.

In Linux 2.6 and above, profiling works correctly with threads, automatically profiling all threads. In Linux 2.4, profiling only profiles the main thread (due to a kernel bug involving itimers and threads). Profiling works correctly with sub-processes: each child process gets its own profile with its own name (generated by combining CPUPROFILE with the child's process id).

For security reasons, CPU profiling will not write to a file -- and is thus not usable -- for setuid programs.

See the include-file gperftools/profiler.h for advanced-use functions, including ProfilerFlush() and ProfilerStartWithOptions().

Modifying Runtime Behavior

You can more finely control the behavior of the CPU profiler via environment variables.

CPUPROFILE_FREQUENCY=x default: 100 How many interrupts/second the cpu-profiler samples.
CPUPROFILE_REALTIME=1 default: [not set] If set to any value (including 0 or the empty string), use ITIMER_REAL instead of ITIMER_PROF to gather profiles. In general, ITIMER_REAL is not as accurate as ITIMER_PROF, and also interacts badly with use of alarm(), so prefer ITIMER_PROF unless you have a reason prefer ITIMER_REAL.

Analyzing the Output

pprof is the script used to analyze a profile. It has many output modes, both textual and graphical. Some give just raw numbers, much like the -pg output of gcc, and others show the data in the form of a dependency graph.

pprof requires perl5 to be installed to run. It also requires dot to be installed for any of the graphical output routines, and gv to be installed for --gv mode (described below).

Here are some ways to call pprof. These are described in more detail below.

% pprof /bin/ls ls.prof
                       Enters "interactive" mode
% pprof --text /bin/ls ls.prof
                       Outputs one line per procedure
% pprof --gv /bin/ls ls.prof
                       Displays annotated call-graph via 'gv'
% pprof --gv --focus=Mutex /bin/ls ls.prof
                       Restricts to code paths including a .*Mutex.* entry
% pprof --gv --focus=Mutex --ignore=string /bin/ls ls.prof
                       Code paths including Mutex but not string
% pprof --list=getdir /bin/ls ls.prof
                       (Per-line) annotated source listing for getdir()
% pprof --disasm=getdir /bin/ls ls.prof
                       (Per-PC) annotated disassembly for getdir()
% pprof --text localhost:1234
                       Outputs one line per procedure for localhost:1234
% pprof --callgrind /bin/ls ls.prof
                       Outputs the call information in callgrind format

Analyzing Text Output

Text mode has lines of output that look like this:

       14   2.1%  17.2%       58   8.7% std::_Rb_tree::find

Here is how to interpret the columns:

  1. Number of profiling samples in this function
  2. Percentage of profiling samples in this function
  3. Percentage of profiling samples in the functions printed so far
  4. Number of profiling samples in this function and its callees
  5. Percentage of profiling samples in this function and its callees
  6. Function name

Analyzing Callgrind Output

Use kcachegrind to analyze your callgrind output:

% pprof --callgrind /bin/ls ls.prof > ls.callgrind
% kcachegrind ls.callgrind

The cost is specified in 'hits', i.e. how many times a function appears in the recorded call stack information. The 'calls' from function a to b record how many times function b was found in the stack traces directly below function a.

Tip: if you use a debug build the output will include file and line number information and kcachegrind will show an annotated source code view.

Node Information

In the various graphical modes of pprof, the output is a call graph annotated with timing information, like so:

Each node represents a procedure. The directed edges indicate caller to callee relations. Each node is formatted as follows:

Class Name
Method Name
local (percentage)
of cumulative (percentage)

The last one or two lines contains the timing information. (The profiling is done via a sampling method, where by default we take 100 samples a second. Therefor one unit of time in the output corresponds to about 10 milliseconds of execution time.) The "local" time is the time spent executing the instructions directly contained in the procedure (and in any other procedures that were inlined into the procedure). The "cumulative" time is the sum of the "local" time and the time spent in any callees. If the cumulative time is the same as the local time, it is not printed.

For instance, the timing information for test_main_thread() indicates that 155 units (about 1.55 seconds) were spent executing the code in test_main_thread() and 200 units were spent while executing test_main_thread() and its callees such as snprintf().

The size of the node is proportional to the local count. The percentage displayed in the node corresponds to the count divided by the total run time of the program (that is, the cumulative count for main()).

Edge Information

An edge from one node to another indicates a caller to callee relationship. Each edge is labelled with the time spent by the callee on behalf of the caller. E.g, the edge from test_main_thread() to snprintf() indicates that of the 200 samples in test_main_thread(), 37 are because of calls to snprintf().

Note that test_main_thread() has an edge to vsnprintf(), even though test_main_thread() doesn't call that function directly. This is because the code was compiled with -O2; the profile reflects the optimized control flow.

Meta Information

The top of the display should contain some meta information like:

      /tmp/profiler2_unittest
      Total samples: 202
      Focusing on: 202
      Dropped nodes with <= 1 abs(samples)
      Dropped edges with <= 0 samples

This section contains the name of the program, and the total samples collected during the profiling run. If the --focus option is on (see the Focus section below), the legend also contains the number of samples being shown in the focused display. Furthermore, some unimportant nodes and edges are dropped to reduce clutter. The characteristics of the dropped nodes and edges are also displayed in the legend.

Focus and Ignore

You can ask pprof to generate a display focused on a particular piece of the program. You specify a regular expression. Any portion of the call-graph that is on a path which contains at least one node matching the regular expression is preserved. The rest of the call-graph is dropped on the floor. For example, you can focus on the vsnprintf() libc call in profiler2_unittest as follows:

% pprof --gv --focus=vsnprintf /tmp/profiler2_unittest test.prof

Similarly, you can supply the --ignore option to ignore samples that match a specified regular expression. E.g., if you are interested in everything except calls to snprintf(), you can say:

% pprof --gv --ignore=snprintf /tmp/profiler2_unittest test.prof

Interactive mode

By default -- if you don't specify any flags to the contrary -- pprof runs in interactive mode. At the (pprof) prompt, you can run many of the commands described above. You can type help for a list of what commands are available in interactive mode.

pprof Options

For a complete list of pprof options, you can run pprof --help.

Output Type

--text Produces a textual listing. (Note: If you have an X display, and dot and gv installed, you will probably be happier with the --gv output.)
--gv Generates annotated call-graph, converts to postscript, and displays via gv (requres dot and gv be installed).
--dot Generates the annotated call-graph in dot format and emits to stdout (requres dot be installed).
--ps Generates the annotated call-graph in Postscript format and emits to stdout (requres dot be installed).
--pdf Generates the annotated call-graph in PDF format and emits to stdout (requires dot and ps2pdf be installed).
--gif Generates the annotated call-graph in GIF format and emits to stdout (requres dot be installed).
--list=<regexp>

Outputs source-code listing of routines whose name matches <regexp>. Each line in the listing is annotated with flat and cumulative sample counts.

In the presence of inlined calls, the samples associated with inlined code tend to get assigned to a line that follows the location of the inlined call. A more precise accounting can be obtained by disassembling the routine using the --disasm flag.
--disasm=<regexp> Generates disassembly of routines that match <regexp>, annotated with flat and cumulative sample counts and emits to stdout.

Reporting Granularity

By default, pprof produces one entry per procedure. However you can use one of the following options to change the granularity of the output. The --files option seems to be particularly useless, and may be removed eventually.

--addresses Produce one node per program address.
--lines Produce one node per source line.
--functions Produce one node per function (this is the default).
--files Produce one node per source file.

Controlling the Call Graph Display

Some nodes and edges are dropped to reduce clutter in the output display. The following options control this effect:

--nodecount=<n> This option controls the number of displayed nodes. The nodes are first sorted by decreasing cumulative count, and then only the top N nodes are kept. The default value is 80.
--nodefraction=<f> This option provides another mechanism for discarding nodes from the display. If the cumulative count for a node is less than this option's value multiplied by the total count for the profile, the node is dropped. The default value is 0.005; i.e. nodes that account for less than half a percent of the total time are dropped. A node is dropped if either this condition is satisfied, or the --nodecount condition is satisfied.
--edgefraction=<f> This option controls the number of displayed edges. First of all, an edge is dropped if either its source or destination node is dropped. Otherwise, the edge is dropped if the sample count along the edge is less than this option's value multiplied by the total count for the profile. The default value is 0.001; i.e., edges that account for less than 0.1% of the total time are dropped.
--focus=<re> This option controls what region of the graph is displayed based on the regular expression supplied with the option. For any path in the callgraph, we check all nodes in the path against the supplied regular expression. If none of the nodes match, the path is dropped from the output.
--ignore=<re> This option controls what region of the graph is displayed based on the regular expression supplied with the option. For any path in the callgraph, we check all nodes in the path against the supplied regular expression. If any of the nodes match, the path is dropped from the output.

The dropped edges and nodes account for some count mismatches in the display. For example, the cumulative count for snprintf() in the first diagram above was 41. However the local count (1) and the count along the outgoing edges (12+1+20+6) add up to only 40.

Caveats

  • If the program exits because of a signal, the generated profile will be incomplete, and may perhaps be completely empty.
  • The displayed graph may have disconnected regions because of the edge-dropping heuristics described above.
  • If the program linked in a library that was not compiled with enough symbolic information, all samples associated with the library may be charged to the last symbol found in the program before the library. This will artificially inflate the count for that symbol.
  • If you run the program on one machine, and profile it on another, and the shared libraries are different on the two machines, the profiling output may be confusing: samples that fall within shared libaries may be assigned to arbitrary procedures.
  • If your program forks, the children will also be profiled (since they inherit the same CPUPROFILE setting). Each process is profiled separately; to distinguish the child profiles from the parent profile and from each other, all children will have their process-id appended to the CPUPROFILE name.
  • Due to a hack we make to work around a possible gcc bug, your profiles may end up named strangely if the first character of your CPUPROFILE variable has ascii value greater than 127. This should be exceedingly rare, but if you need to use such a name, just set prepend ./ to your filename: CPUPROFILE=./Ägypten.
Sanjay Ghemawat
Last modified: Fri May 9 14:41:29 PDT 2008
gperftools-2.4/doc/cpuprofile-fileformat.html0000644000000000000000000001514312371745612016377 00000000000000 Google CPU Profiler Binary Data File Format

Google CPU Profiler Binary Data File Format

Last modified

This file documents the binary data file format produced by the Google CPU Profiler. For information about using the CPU Profiler, see its user guide.

The profiler source code, which generates files using this format, is at src/profiler.cc.

CPU Profile Data File Structure

CPU profile data files each consist of four parts, in order:

  • Binary header
  • Binary profile records
  • Binary trailer
  • Text list of mapped objects

The binary data is expressed in terms of "slots." These are words large enough to hold the program's pointer type, i.e., for 32-bit programs they are 4 bytes in size, and for 64-bit programs they are 8 bytes. They are stored in the profile data file in the native byte order (i.e., little-endian for x86 and x86_64).

Binary Header

The binary header format is show below. Values written by the profiler, along with requirements currently enforced by the analysis tools, are shown in parentheses.

slot data
0 header count (0; must be 0)
1 header slots after this one (3; must be >= 3)
2 format version (0; must be 0)
3 sampling period, in microseconds
4 padding (0)

The headers currently generated for 32-bit and 64-bit little-endian (x86 and x86_64) profiles are shown below, for comparison.

hdr count hdr words version sampling period pad
32-bit or 64-bit (slots) 0 3 0 10000 0
32-bit (4-byte words in file) 0x00000 0x00003 0x00000 0x02710 0x00000
64-bit LE (4-byte words in file) 0x00000 0x00000 0x00003 0x00000 0x00000 0x00000 0x02710 0x00000 0x00000 0x00000

The contents are shown in terms of slots, and in terms of 4-byte words in the profile data file. The slot contents for 32-bit and 64-bit headers are identical. For 32-bit profiles, the 4-byte word view matches the slot view. For 64-bit profiles, each (8-byte) slot is shown as two 4-byte words, ordered as they would appear in the file.

The profiling tools examine the contents of the file and use the expected locations and values of the header words field to detect whether the file is 32-bit or 64-bit.

Binary Profile Records

The binary profile record format is shown below.

slot data
0 sample count, must be >= 1
1 number of call chain PCs (num_pcs), must be >= 1
2 .. (num_pcs + 1) call chain PCs, most-recently-called function first.

The total length of a given record is 2 + num_pcs.

Note that multiple profile records can be emitted by the profiler having an identical call chain. In that case, analysis tools should sum the counts of all records having identical call chains.

Note: Some profile analysis tools terminate if they see any profile record with a call chain with its first entry having the address 0. (This is similar to the binary trailer.)

Example

This example shows the slots contained in a sample profile record.

5 3 0xa0000 0xc0000 0xe0000

In this example, 5 ticks were received at PC 0xa0000, whose function had been called by the function containing 0xc0000, which had been called from the function containing 0xe0000.

Binary Trailer

The binary trailer consists of three slots of data with fixed values, shown below.

slot value
0 0
1 1
2 0

Note that this is the same data that would contained in a profile record with sample count = 0, num_pcs = 1, and a one-element call chain containing the address 0.

Text List of Mapped Objects

The binary data in the file is followed immediately by a list of mapped objects. This list consists of lines of text separated by newline characters.

Each line is one of the following types:

  • Build specifier, starting with "build=". For example: 
      build=/path/to/binary
    Leading spaces on the line are ignored.
  • Mapping line from ProcMapsIterator::FormatLine. For example: 
      40000000-40015000 r-xp 00000000 03:01 12845071   /lib/ld-2.3.2.so
    The first address must start at the beginning of the line.

Unrecognized lines should be ignored by analysis tools.

When processing the paths see in mapping lines, occurrences of $build followed by a non-word character (i.e., characters other than underscore or alphanumeric characters), should be replaced by the path given on the last build specifier line.

Chris Demetriou
Last modified: Mon Aug 27 12:18:26 PDT 2007 (cgd)
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(RJ !@ ! :KrB`)CB@BJ 9iW 0 ӄȜ!C ! !3!r sœ2rjuZkUU$rsΙ`9i4@02@!8J8!JHBH ) "!9A0@ 'ZgVUUUUUQ! #BA @ 4$ڋAki@#@ !@ '9 !PJ< 3Pkt! 䔃A)#@tZk9igy őDRsΉ`0IA*Q9Q80(Q:M@R(@ 'V^Jd@ !9jx 3 a@ND)r V{q֛wPFNV^fnv~'/7?GOW烈;gperftools-2.4/doc/pprof-vsnprintf.gif0000644000000000000000000007451612371745612015070 00000000000000GIF89a"___???wwwooo!,"I8ͻ`(dihlp,tmx|pH,Ȥrl:ШtJZجvzxL.zn|N~o@ 'vr-!I"^0G4O4UWu_8Fb V;trj/z?#Y'+ۺ/d I{9)M$TkU @ ' @ '78y1DI 9)-3ZkpF@NZG@NZYoCq$KDSue[a @B0 ʀ(p!p 8` !BA8 9C!@C 4(!H9igy ő,MՕmvPF!  @JP@ TA9G#HB%@@@NZYoCq$KDSue[a   Hd2H A $!RJR@ ) V{q֛wP9igy ő,MՕm rNU`B V  h, Ѐ@NZYoCq$KDSue[c @  2PJ)EP@NZ-H$$, A '78y±@a rj/!gZ A ,^0G4O4UWu_86%P PB% Kx@  8@ `RA '%2@%@NZYoCq$KDSue[c  ( J P$QH% %H f@ '78y± @@NdJ H$2H AB@ 'ij@NZYoCq$KDSue[  %9 9@@așs3& g@ '78y @P䔇Pda@rC(c0aڋ޼H扦ʶ '4J C@(3€@PJaa (0@* A(%@ '  (9AI8ͻ`(dihlp\BA %CR)C E@I0H $ A` I)Q`B0I8ͻ`(dihlp, V{q֛wP`@N4h9rj/z?#Y'+ۺ/C9ig9O0@ ' s99igy ő,MՕmڋ|r0sN V{q֛wPQZ^Y~a\6ivq^y  ";gperftools-2.4/doc/pprof.see_also0000644000000000000000000000041112372001603014027 00000000000000[see also] Further documentation for .B pprof is maintained as a web page called .B cpu_profiler.html and is likely installed at one of the following locations: .IP .B /usr/share/gperftools/cpu_profiler.html .br .B /usr/local/share/gperftools/cpu_profiler.html .PP gperftools-2.4/m4/0000755000000000000000000000000012454304760011037 500000000000000gperftools-2.4/m4/ac_have_attribute.m40000644000000000000000000000076412371745612014704 00000000000000AC_DEFUN([AX_C___ATTRIBUTE__], [ AC_MSG_CHECKING(for __attribute__) AC_CACHE_VAL(ac_cv___attribute__, [ AC_TRY_COMPILE( [#include static void foo(void) __attribute__ ((unused)); void foo(void) { exit(1); }], [], ac_cv___attribute__=yes, ac_cv___attribute__=no )]) if test "$ac_cv___attribute__" = "yes"; then AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__]) fi AC_MSG_RESULT($ac_cv___attribute__) ]) gperftools-2.4/m4/acx_nanosleep.m40000644000000000000000000000217712371745612014052 00000000000000# Check for support for nanosleep. It's defined in , but on # some systems, such as solaris, you need to link in a library to use it. # We set acx_nanosleep_ok if nanosleep is supported; in that case, # NANOSLEEP_LIBS is set to whatever libraries are needed to support # nanosleep. AC_DEFUN([ACX_NANOSLEEP], [AC_MSG_CHECKING(if nanosleep requires any libraries) AC_LANG_SAVE AC_LANG_C acx_nanosleep_ok="no" NANOSLEEP_LIBS= # For most folks, this should just work AC_TRY_LINK([#include ], [static struct timespec ts; nanosleep(&ts, NULL);], [acx_nanosleep_ok=yes]) # For solaris, we may need -lrt if test "x$acx_nanosleep_ok" != "xyes"; then OLD_LIBS="$LIBS" LIBS="-lrt $LIBS" AC_TRY_LINK([#include ], [static struct timespec ts; nanosleep(&ts, NULL);], [acx_nanosleep_ok=yes]) if test "x$acx_nanosleep_ok" = "xyes"; then NANOSLEEP_LIBS="-lrt" fi LIBS="$OLD_LIBS" fi if test "x$acx_nanosleep_ok" != "xyes"; then AC_MSG_ERROR([cannot find the nanosleep function]) else AC_MSG_RESULT(${NANOSLEEP_LIBS:-no}) fi AC_LANG_RESTORE ]) gperftools-2.4/m4/acx_pthread.m40000644000000000000000000003404512372001603013476 00000000000000# This was retrieved from # http://svn.0pointer.de/viewvc/trunk/common/acx_pthread.m4?revision=1277&root=avahi # See also (perhaps for new versions?) # http://svn.0pointer.de/viewvc/trunk/common/acx_pthread.m4?root=avahi # # We've rewritten the inconsistency check code (from avahi), to work # more broadly. In particular, it no longer assumes ld accepts -zdefs. # This caused a restructing of the code, but the functionality has only # changed a little. dnl @synopsis ACX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) dnl dnl @summary figure out how to build C programs using POSIX threads dnl dnl This macro figures out how to build C programs using POSIX threads. dnl It sets the PTHREAD_LIBS output variable to the threads library and dnl linker flags, and the PTHREAD_CFLAGS output variable to any special dnl C compiler flags that are needed. (The user can also force certain dnl compiler flags/libs to be tested by setting these environment dnl variables.) dnl dnl Also sets PTHREAD_CC to any special C compiler that is needed for dnl multi-threaded programs (defaults to the value of CC otherwise). dnl (This is necessary on AIX to use the special cc_r compiler alias.) dnl dnl NOTE: You are assumed to not only compile your program with these dnl flags, but also link it with them as well. e.g. you should link dnl with $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS dnl $LIBS dnl dnl If you are only building threads programs, you may wish to use dnl these variables in your default LIBS, CFLAGS, and CC: dnl dnl LIBS="$PTHREAD_LIBS $LIBS" dnl CFLAGS="$CFLAGS $PTHREAD_CFLAGS" dnl CC="$PTHREAD_CC" dnl dnl In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute dnl constant has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to dnl that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX). dnl dnl ACTION-IF-FOUND is a list of shell commands to run if a threads dnl library is found, and ACTION-IF-NOT-FOUND is a list of commands to dnl run it if it is not found. If ACTION-IF-FOUND is not specified, the dnl default action will define HAVE_PTHREAD. dnl dnl Please let the authors know if this macro fails on any platform, or dnl if you have any other suggestions or comments. This macro was based dnl on work by SGJ on autoconf scripts for FFTW (www.fftw.org) (with dnl help from M. Frigo), as well as ac_pthread and hb_pthread macros dnl posted by Alejandro Forero Cuervo to the autoconf macro repository. dnl We are also grateful for the helpful feedback of numerous users. dnl dnl @category InstalledPackages dnl @author Steven G. Johnson dnl @version 2006-05-29 dnl @license GPLWithACException dnl dnl Checks for GCC shared/pthread inconsistency based on work by dnl Marcin Owsiany AC_DEFUN([ACX_PTHREAD], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_LANG_SAVE AC_LANG_C acx_pthread_ok=no # We used to check for pthread.h first, but this fails if pthread.h # requires special compiler flags (e.g. on True64 or Sequent). # It gets checked for in the link test anyway. # First of all, check if the user has set any of the PTHREAD_LIBS, # etcetera environment variables, and if threads linking works using # them: if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS]) AC_TRY_LINK_FUNC(pthread_join, acx_pthread_ok=yes) AC_MSG_RESULT($acx_pthread_ok) if test x"$acx_pthread_ok" = xno; then PTHREAD_LIBS="" PTHREAD_CFLAGS="" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" fi # We must check for the threads library under a number of different # names; the ordering is very important because some systems # (e.g. DEC) have both -lpthread and -lpthreads, where one of the # libraries is broken (non-POSIX). # Create a list of thread flags to try. Items starting with a "-" are # C compiler flags, and other items are library names, except for "none" # which indicates that we try without any flags at all, and "pthread-config" # which is a program returning the flags for the Pth emulation library. acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" # The ordering *is* (sometimes) important. Some notes on the # individual items follow: # pthreads: AIX (must check this before -lpthread) # none: in case threads are in libc; should be tried before -Kthread and # other compiler flags to prevent continual compiler warnings # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads) # -pthreads: Solaris/gcc # -mthreads: Mingw32/gcc, Lynx/gcc # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it # doesn't hurt to check since this sometimes defines pthreads too; # also defines -D_REENTRANT) # ... -mt is also the pthreads flag for HP/aCC # pthread: Linux, etcetera # --thread-safe: KAI C++ # pthread-config: use pthread-config program (for GNU Pth library) case "${host_cpu}-${host_os}" in *solaris*) # On Solaris (at least, for some versions), libc contains stubbed # (non-functional) versions of the pthreads routines, so link-based # tests will erroneously succeed. (We need to link with -pthreads/-mt/ # -lpthread.) (The stubs are missing pthread_cleanup_push, or rather # a function called by this macro, so we could check for that, but # who knows whether they'll stub that too in a future libc.) So, # we'll just look for -pthreads and -lpthread first: acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags" ;; esac if test x"$acx_pthread_ok" = xno; then for flag in $acx_pthread_flags; do case $flag in none) AC_MSG_CHECKING([whether pthreads work without any flags]) ;; -*) AC_MSG_CHECKING([whether pthreads work with $flag]) PTHREAD_CFLAGS="$flag" ;; pthread-config) AC_CHECK_PROG(acx_pthread_config, pthread-config, yes, no) if test x"$acx_pthread_config" = xno; then continue; fi PTHREAD_CFLAGS="`pthread-config --cflags`" PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" ;; *) AC_MSG_CHECKING([for the pthreads library -l$flag]) PTHREAD_LIBS="-l$flag" ;; esac save_LIBS="$LIBS" save_CFLAGS="$CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Check for various functions. We must include pthread.h, # since some functions may be macros. (On the Sequent, we # need a special flag -Kthread to make this header compile.) # We check for pthread_join because it is in -lpthread on IRIX # while pthread_create is in libc. We check for pthread_attr_init # due to DEC craziness with -lpthreads. We check for # pthread_cleanup_push because it is one of the few pthread # functions on Solaris that doesn't have a non-functional libc stub. # We try pthread_create on general principles. AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [acx_pthread_ok=yes]) LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" AC_MSG_RESULT($acx_pthread_ok) if test "x$acx_pthread_ok" = xyes; then break; fi PTHREAD_LIBS="" PTHREAD_CFLAGS="" done fi # Various other checks: if test "x$acx_pthread_ok" = xyes; then save_LIBS="$LIBS" LIBS="$PTHREAD_LIBS $LIBS" save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. AC_MSG_CHECKING([for joinable pthread attribute]) attr_name=unknown for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do AC_TRY_LINK([#include ], [int attr=$attr; return attr;], [attr_name=$attr; break]) done AC_MSG_RESULT($attr_name) if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then AC_DEFINE_UNQUOTED(PTHREAD_CREATE_JOINABLE, $attr_name, [Define to necessary symbol if this constant uses a non-standard name on your system.]) fi AC_MSG_CHECKING([if more special flags are required for pthreads]) flag=no case "${host_cpu}-${host_os}" in *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";; *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";; esac AC_MSG_RESULT(${flag}) if test "x$flag" != xno; then PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS" fi LIBS="$save_LIBS" CFLAGS="$save_CFLAGS" # More AIX lossage: must compile with xlc_r or cc_r if test x"$GCC" != xyes; then AC_CHECK_PROGS(PTHREAD_CC, xlc_r cc_r, ${CC}) else PTHREAD_CC=$CC fi # The next part tries to detect GCC inconsistency with -shared on some # architectures and systems. The problem is that in certain # configurations, when -shared is specified, GCC "forgets" to # internally use various flags which are still necessary. # # Prepare the flags # save_CFLAGS="$CFLAGS" save_LIBS="$LIBS" save_CC="$CC" # Try with the flags determined by the earlier checks. # # -Wl,-z,defs forces link-time symbol resolution, so that the # linking checks with -shared actually have any value # # FIXME: -fPIC is required for -shared on many architectures, # so we specify it here, but the right way would probably be to # properly detect whether it is actually required. CFLAGS="-shared -fPIC -Wl,-z,defs $CFLAGS $PTHREAD_CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" CC="$PTHREAD_CC" # In order not to create several levels of indentation, we test # the value of "$done" until we find the cure or run out of ideas. done="no" # First, make sure the CFLAGS we added are actually accepted by our # compiler. If not (and OS X's ld, for instance, does not accept -z), # then we can't do this test. if test x"$done" = xno; then AC_MSG_CHECKING([whether to check for GCC pthread/shared inconsistencies]) AC_TRY_LINK(,, , [done=yes]) if test "x$done" = xyes ; then AC_MSG_RESULT([no]) else AC_MSG_RESULT([yes]) fi fi if test x"$done" = xno; then AC_MSG_CHECKING([whether -pthread is sufficient with -shared]) AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [done=yes]) if test "x$done" = xyes; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi fi # # Linux gcc on some architectures such as mips/mipsel forgets # about -lpthread # if test x"$done" = xno; then AC_MSG_CHECKING([whether -lpthread fixes that]) LIBS="-lpthread $PTHREAD_LIBS $save_LIBS" AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [done=yes]) if test "x$done" = xyes; then AC_MSG_RESULT([yes]) PTHREAD_LIBS="-lpthread $PTHREAD_LIBS" else AC_MSG_RESULT([no]) fi fi # # FreeBSD 4.10 gcc forgets to use -lc_r instead of -lc # if test x"$done" = xno; then AC_MSG_CHECKING([whether -lc_r fixes that]) LIBS="-lc_r $PTHREAD_LIBS $save_LIBS" AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [done=yes]) if test "x$done" = xyes; then AC_MSG_RESULT([yes]) PTHREAD_LIBS="-lc_r $PTHREAD_LIBS" else AC_MSG_RESULT([no]) fi fi if test x"$done" = xno; then # OK, we have run out of ideas AC_MSG_WARN([Impossible to determine how to use pthreads with shared libraries]) # so it's not safe to assume that we may use pthreads acx_pthread_ok=no fi AC_MSG_CHECKING([whether what we have so far is sufficient with -nostdlib]) CFLAGS="-nostdlib $CFLAGS" # we need c with nostdlib LIBS="$LIBS -lc" AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [done=yes],[done=no]) if test "x$done" = xyes; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi if test x"$done" = xno; then AC_MSG_CHECKING([whether -lpthread saves the day]) LIBS="-lpthread $LIBS" AC_TRY_LINK([#include ], [pthread_t th; pthread_join(th, 0); pthread_attr_init(0); pthread_cleanup_push(0, 0); pthread_create(0,0,0,0); pthread_cleanup_pop(0); ], [done=yes],[done=no]) if test "x$done" = xyes; then AC_MSG_RESULT([yes]) PTHREAD_LIBS="$PTHREAD_LIBS -lpthread" else AC_MSG_RESULT([no]) AC_MSG_WARN([Impossible to determine how to use pthreads with shared libraries and -nostdlib]) fi fi CFLAGS="$save_CFLAGS" LIBS="$save_LIBS" CC="$save_CC" else PTHREAD_CC="$CC" fi AC_SUBST(PTHREAD_LIBS) AC_SUBST(PTHREAD_CFLAGS) AC_SUBST(PTHREAD_CC) # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: if test x"$acx_pthread_ok" = xyes; then ifelse([$1],,AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.]),[$1]) : else acx_pthread_ok=no $2 fi AC_LANG_RESTORE ])dnl ACX_PTHREAD gperftools-2.4/m4/compiler_characteristics.m40000644000000000000000000000222112371745612016266 00000000000000# Check compiler characteristics (e.g. type sizes, PRIxx macros, ...) # If types $1 and $2 are compatible, perform action $3 AC_DEFUN([AC_TYPES_COMPATIBLE], [AC_TRY_COMPILE([#include ], [$1 v1 = 0; 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if test x"$ac_cv_install_prefix" = x"NONE" ; then ac_cv_install_prefix="$ac_default_prefix"; fi AC_DEFINE_UNQUOTED(INSTALL_PREFIX, "$ac_cv_install_prefix", [prefix where we look for installed files]) ]) gperftools-2.4/m4/libtool.m40000644000000000000000000106011112454304616012665 00000000000000# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- # # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, # 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # Written by Gordon Matzigkeit, 1996 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. m4_define([_LT_COPYING], [dnl # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, # 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # Written by Gordon Matzigkeit, 1996 # # This file is part of GNU Libtool. # # GNU Libtool is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation; either version 2 of # the License, or (at your option) any later version. # # As a special exception to the GNU General Public License, # if you distribute this file as part of a program or library that # is built using GNU Libtool, you may include this file under the # same distribution terms that you use for the rest of that program. # # GNU Libtool is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with GNU Libtool; see the file COPYING. If not, a copy # can be downloaded from http://www.gnu.org/licenses/gpl.html, or # obtained by writing to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. ]) # serial 57 LT_INIT # LT_PREREQ(VERSION) # ------------------ # Complain and exit if this libtool version is less that VERSION. m4_defun([LT_PREREQ], [m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1, [m4_default([$3], [m4_fatal([Libtool version $1 or higher is required], 63)])], [$2])]) # _LT_CHECK_BUILDDIR # ------------------ # Complain if the absolute build directory name contains unusual characters m4_defun([_LT_CHECK_BUILDDIR], [case `pwd` in *\ * | *\ *) AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;; esac ]) # LT_INIT([OPTIONS]) # ------------------ AC_DEFUN([LT_INIT], [AC_PREREQ([2.58])dnl We use AC_INCLUDES_DEFAULT AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl AC_BEFORE([$0], [LT_LANG])dnl AC_BEFORE([$0], [LT_OUTPUT])dnl AC_BEFORE([$0], [LTDL_INIT])dnl m4_require([_LT_CHECK_BUILDDIR])dnl dnl Autoconf doesn't catch unexpanded LT_ macros by default: m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4 dnl unless we require an AC_DEFUNed macro: AC_REQUIRE([LTOPTIONS_VERSION])dnl AC_REQUIRE([LTSUGAR_VERSION])dnl AC_REQUIRE([LTVERSION_VERSION])dnl AC_REQUIRE([LTOBSOLETE_VERSION])dnl m4_require([_LT_PROG_LTMAIN])dnl _LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}]) dnl Parse OPTIONS _LT_SET_OPTIONS([$0], [$1]) # This can be used to rebuild libtool when needed LIBTOOL_DEPS="$ltmain" # Always use our own libtool. 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It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8 ; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test $i != 17 # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. It appears as though 1/2 is a usable value. lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` fi ;; esac ]) if test -n $lt_cv_sys_max_cmd_len ; then AC_MSG_RESULT($lt_cv_sys_max_cmd_len) else AC_MSG_RESULT(none) fi max_cmd_len=$lt_cv_sys_max_cmd_len _LT_DECL([], [max_cmd_len], [0], [What is the maximum length of a command?]) ])# LT_CMD_MAX_LEN # Old name: AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) # _LT_HEADER_DLFCN # ---------------- m4_defun([_LT_HEADER_DLFCN], [AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl ])# _LT_HEADER_DLFCN # _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, # ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) # ---------------------------------------------------------------- m4_defun([_LT_TRY_DLOPEN_SELF], [m4_require([_LT_HEADER_DLFCN])dnl if test "$cross_compiling" = yes; then : [$4] else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF [#line $LINENO "configure" #include "confdefs.h" #if HAVE_DLFCN_H #include #endif #include #ifdef RTLD_GLOBAL # define LT_DLGLOBAL RTLD_GLOBAL #else # ifdef DL_GLOBAL # define LT_DLGLOBAL DL_GLOBAL # else # define LT_DLGLOBAL 0 # endif #endif /* We may have to define LT_DLLAZY_OR_NOW in the command line if we find out it does not work in some platform. */ #ifndef LT_DLLAZY_OR_NOW # ifdef RTLD_LAZY # define LT_DLLAZY_OR_NOW RTLD_LAZY # else # ifdef DL_LAZY # define LT_DLLAZY_OR_NOW DL_LAZY # else # ifdef RTLD_NOW # define LT_DLLAZY_OR_NOW RTLD_NOW # else # ifdef DL_NOW # define LT_DLLAZY_OR_NOW DL_NOW # else # define LT_DLLAZY_OR_NOW 0 # endif # endif # endif # endif #endif /* When -fvisbility=hidden is used, assume the code has been annotated correspondingly for the symbols needed. */ #if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) int fnord () __attribute__((visibility("default"))); #endif int fnord () { return 42; } int main () { void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); int status = $lt_dlunknown; if (self) { if (dlsym (self,"fnord")) status = $lt_dlno_uscore; else { if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; else puts (dlerror ()); } /* dlclose (self); */ } else puts (dlerror ()); return status; }] _LT_EOF if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null lt_status=$? case x$lt_status in x$lt_dlno_uscore) $1 ;; x$lt_dlneed_uscore) $2 ;; x$lt_dlunknown|x*) $3 ;; esac else : # compilation failed $3 fi fi rm -fr conftest* ])# _LT_TRY_DLOPEN_SELF # LT_SYS_DLOPEN_SELF # ------------------ AC_DEFUN([LT_SYS_DLOPEN_SELF], [m4_require([_LT_HEADER_DLFCN])dnl if test "x$enable_dlopen" != xyes; then enable_dlopen=unknown enable_dlopen_self=unknown enable_dlopen_self_static=unknown else lt_cv_dlopen=no lt_cv_dlopen_libs= case $host_os in beos*) lt_cv_dlopen="load_add_on" lt_cv_dlopen_libs= lt_cv_dlopen_self=yes ;; mingw* | pw32* | cegcc*) lt_cv_dlopen="LoadLibrary" lt_cv_dlopen_libs= ;; cygwin*) lt_cv_dlopen="dlopen" lt_cv_dlopen_libs= ;; darwin*) # if libdl is installed we need to link against it AC_CHECK_LIB([dl], [dlopen], [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[ lt_cv_dlopen="dyld" lt_cv_dlopen_libs= lt_cv_dlopen_self=yes ]) ;; *) AC_CHECK_FUNC([shl_load], [lt_cv_dlopen="shl_load"], [AC_CHECK_LIB([dld], [shl_load], [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"], [AC_CHECK_FUNC([dlopen], [lt_cv_dlopen="dlopen"], [AC_CHECK_LIB([dl], [dlopen], [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"], [AC_CHECK_LIB([svld], [dlopen], [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"], [AC_CHECK_LIB([dld], [dld_link], [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"]) ]) ]) ]) ]) ]) ;; esac if test "x$lt_cv_dlopen" != xno; then enable_dlopen=yes else enable_dlopen=no fi case $lt_cv_dlopen in dlopen) save_CPPFLAGS="$CPPFLAGS" test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" save_LDFLAGS="$LDFLAGS" wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" save_LIBS="$LIBS" LIBS="$lt_cv_dlopen_libs $LIBS" AC_CACHE_CHECK([whether a program can dlopen itself], lt_cv_dlopen_self, [dnl _LT_TRY_DLOPEN_SELF( lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) ]) if test "x$lt_cv_dlopen_self" = xyes; then wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" AC_CACHE_CHECK([whether a statically linked program can dlopen itself], lt_cv_dlopen_self_static, [dnl _LT_TRY_DLOPEN_SELF( lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) ]) fi CPPFLAGS="$save_CPPFLAGS" LDFLAGS="$save_LDFLAGS" LIBS="$save_LIBS" ;; esac case $lt_cv_dlopen_self in yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; *) enable_dlopen_self=unknown ;; esac case $lt_cv_dlopen_self_static in yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; *) enable_dlopen_self_static=unknown ;; esac fi _LT_DECL([dlopen_support], [enable_dlopen], [0], [Whether dlopen is supported]) _LT_DECL([dlopen_self], [enable_dlopen_self], [0], [Whether dlopen of programs is supported]) _LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], [Whether dlopen of statically linked programs is supported]) ])# LT_SYS_DLOPEN_SELF # Old name: AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) # _LT_COMPILER_C_O([TAGNAME]) # --------------------------- # Check to see if options -c and -o are simultaneously supported by compiler. # This macro does not hard code the compiler like AC_PROG_CC_C_O. m4_defun([_LT_COMPILER_C_O], [m4_require([_LT_DECL_SED])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl m4_require([_LT_TAG_COMPILER])dnl AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no $RM -r conftest 2>/dev/null mkdir conftest cd conftest mkdir out echo "$lt_simple_compile_test_code" > conftest.$ac_ext lt_compiler_flag="-o out/conftest2.$ac_objext" # Insert the option either (1) after the last *FLAGS variable, or # (2) before a word containing "conftest.", or (3) at the end. # Note that $ac_compile itself does not contain backslashes and begins # with a dollar sign (not a hyphen), so the echo should work correctly. lt_compile=`echo "$ac_compile" | $SED \ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) (eval "$lt_compile" 2>out/conftest.err) ac_status=$? cat out/conftest.err >&AS_MESSAGE_LOG_FD echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD if (exit $ac_status) && test -s out/conftest2.$ac_objext then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes fi fi chmod u+w . 2>&AS_MESSAGE_LOG_FD $RM conftest* # SGI C++ compiler will create directory out/ii_files/ for # template instantiation test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files $RM out/* && rmdir out cd .. $RM -r conftest $RM conftest* ]) _LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], [Does compiler simultaneously support -c and -o options?]) ])# _LT_COMPILER_C_O # _LT_COMPILER_FILE_LOCKS([TAGNAME]) # ---------------------------------- # Check to see if we can do hard links to lock some files if needed m4_defun([_LT_COMPILER_FILE_LOCKS], [m4_require([_LT_ENABLE_LOCK])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl _LT_COMPILER_C_O([$1]) hard_links="nottested" if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then # do not overwrite the value of need_locks provided by the user AC_MSG_CHECKING([if we can lock with hard links]) hard_links=yes $RM conftest* ln conftest.a conftest.b 2>/dev/null && hard_links=no touch conftest.a ln conftest.a conftest.b 2>&5 || hard_links=no ln conftest.a conftest.b 2>/dev/null && hard_links=no AC_MSG_RESULT([$hard_links]) if test "$hard_links" = no; then AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe]) need_locks=warn fi else need_locks=no fi _LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) ])# _LT_COMPILER_FILE_LOCKS # _LT_CHECK_OBJDIR # ---------------- m4_defun([_LT_CHECK_OBJDIR], [AC_CACHE_CHECK([for objdir], [lt_cv_objdir], [rm -f .libs 2>/dev/null mkdir .libs 2>/dev/null if test -d .libs; then lt_cv_objdir=.libs else # MS-DOS does not allow filenames that begin with a dot. lt_cv_objdir=_libs fi rmdir .libs 2>/dev/null]) objdir=$lt_cv_objdir _LT_DECL([], [objdir], [0], [The name of the directory that contains temporary libtool files])dnl m4_pattern_allow([LT_OBJDIR])dnl AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/", [Define to the sub-directory in which libtool stores uninstalled libraries.]) ])# _LT_CHECK_OBJDIR # _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) # -------------------------------------- # Check hardcoding attributes. m4_defun([_LT_LINKER_HARDCODE_LIBPATH], [AC_MSG_CHECKING([how to hardcode library paths into programs]) _LT_TAGVAR(hardcode_action, $1)= if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || test -n "$_LT_TAGVAR(runpath_var, $1)" || test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then # We can hardcode non-existent directories. if test "$_LT_TAGVAR(hardcode_direct, $1)" != no && # If the only mechanism to avoid hardcoding is shlibpath_var, we # have to relink, otherwise we might link with an installed library # when we should be linking with a yet-to-be-installed one ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no && test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then # Linking always hardcodes the temporary library directory. _LT_TAGVAR(hardcode_action, $1)=relink else # We can link without hardcoding, and we can hardcode nonexisting dirs. _LT_TAGVAR(hardcode_action, $1)=immediate fi else # We cannot hardcode anything, or else we can only hardcode existing # directories. _LT_TAGVAR(hardcode_action, $1)=unsupported fi AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) if test "$_LT_TAGVAR(hardcode_action, $1)" = relink || test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then # Fast installation is not supported enable_fast_install=no elif test "$shlibpath_overrides_runpath" = yes || test "$enable_shared" = no; 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newsos6) version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; *nto* | *qnx*) version_type=qnx need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes dynamic_linker='ldqnx.so' ;; openbsd*) version_type=sunos sys_lib_dlsearch_path_spec="/usr/lib" need_lib_prefix=no # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs. case $host_os in openbsd3.3 | openbsd3.3.*) need_version=yes ;; *) need_version=no ;; esac library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' shlibpath_var=LD_LIBRARY_PATH if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then case $host_os in openbsd2.[[89]] | openbsd2.[[89]].*) shlibpath_overrides_runpath=no ;; *) shlibpath_overrides_runpath=yes ;; esac else shlibpath_overrides_runpath=yes fi ;; os2*) libname_spec='$name' shrext_cmds=".dll" need_lib_prefix=no library_names_spec='$libname${shared_ext} $libname.a' dynamic_linker='OS/2 ld.exe' shlibpath_var=LIBPATH ;; osf3* | osf4* | osf5*) version_type=osf need_lib_prefix=no need_version=no soname_spec='${libname}${release}${shared_ext}$major' library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' shlibpath_var=LD_LIBRARY_PATH sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib" sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec" ;; rdos*) dynamic_linker=no ;; solaris*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes hardcode_into_libs=yes # ldd complains unless libraries are executable postinstall_cmds='chmod +x $lib' ;; sunos4*) version_type=sunos library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix' finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes if test "$with_gnu_ld" = yes; then need_lib_prefix=no fi need_version=yes ;; sysv4 | sysv4.3*) version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' shlibpath_var=LD_LIBRARY_PATH case $host_vendor in sni) shlibpath_overrides_runpath=no need_lib_prefix=no runpath_var=LD_RUN_PATH ;; siemens) need_lib_prefix=no ;; motorola) need_lib_prefix=no need_version=no shlibpath_overrides_runpath=no sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib' ;; esac ;; sysv4*MP*) if test -d /usr/nec ;then version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}' soname_spec='$libname${shared_ext}.$major' shlibpath_var=LD_LIBRARY_PATH fi ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) version_type=freebsd-elf need_lib_prefix=no need_version=no library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}' soname_spec='${libname}${release}${shared_ext}$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes hardcode_into_libs=yes if test "$with_gnu_ld" = yes; then sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib' else sys_lib_search_path_spec='/usr/ccs/lib /usr/lib' case $host_os in sco3.2v5*) sys_lib_search_path_spec="$sys_lib_search_path_spec /lib" ;; esac fi sys_lib_dlsearch_path_spec='/usr/lib' ;; tpf*) # TPF is a cross-target only. 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First name is the real one, the rest are links. 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sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; esac ]) file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown _LT_DECL([], [deplibs_check_method], [1], [Method to check whether dependent libraries are shared objects]) _LT_DECL([], [file_magic_cmd], [1], [Command to use when deplibs_check_method = "file_magic"]) _LT_DECL([], [file_magic_glob], [1], [How to find potential files when deplibs_check_method = "file_magic"]) _LT_DECL([], [want_nocaseglob], [1], [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) ])# _LT_CHECK_MAGIC_METHOD # LT_PATH_NM # ---------- # find the pathname to a BSD- or MS-compatible name lister AC_DEFUN([LT_PATH_NM], [AC_REQUIRE([AC_PROG_CC])dnl AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, [if test -n "$NM"; then # Let the user override the test. lt_cv_path_NM="$NM" else lt_nm_to_check="${ac_tool_prefix}nm" if test -n "$ac_tool_prefix" && test "$build" = "$host"; then lt_nm_to_check="$lt_nm_to_check nm" fi for lt_tmp_nm in $lt_nm_to_check; do lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do IFS="$lt_save_ifs" test -z "$ac_dir" && ac_dir=. tmp_nm="$ac_dir/$lt_tmp_nm" if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then # Check to see if the nm accepts a BSD-compat flag. # Adding the `sed 1q' prevents false positives on HP-UX, which says: # nm: unknown option "B" ignored # Tru64's nm complains that /dev/null is an invalid object file case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in */dev/null* | *'Invalid file or object type'*) lt_cv_path_NM="$tmp_nm -B" break ;; *) case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in */dev/null*) lt_cv_path_NM="$tmp_nm -p" break ;; *) lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but continue # so that we can try to find one that supports BSD flags ;; esac ;; esac fi done IFS="$lt_save_ifs" done : ${lt_cv_path_NM=no} fi]) if test "$lt_cv_path_NM" != "no"; then NM="$lt_cv_path_NM" else # Didn't find any BSD compatible name lister, look for dumpbin. if test -n "$DUMPBIN"; then : # Let the user override the test. else AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in *COFF*) DUMPBIN="$DUMPBIN -symbols" ;; *) DUMPBIN=: ;; esac fi AC_SUBST([DUMPBIN]) if test "$DUMPBIN" != ":"; then NM="$DUMPBIN" fi fi test -z "$NM" && NM=nm AC_SUBST([NM]) _LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], [lt_cv_nm_interface="BSD nm" echo "int some_variable = 0;" > conftest.$ac_ext (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) (eval "$ac_compile" 2>conftest.err) cat conftest.err >&AS_MESSAGE_LOG_FD (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) cat conftest.err >&AS_MESSAGE_LOG_FD (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) cat conftest.out >&AS_MESSAGE_LOG_FD if $GREP 'External.*some_variable' conftest.out > /dev/null; then lt_cv_nm_interface="MS dumpbin" fi rm -f conftest*]) ])# LT_PATH_NM # Old names: AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_PROG_NM], []) dnl AC_DEFUN([AC_PROG_NM], []) # _LT_CHECK_SHAREDLIB_FROM_LINKLIB # -------------------------------- # how to determine the name of the shared library # associated with a specific link library. # -- PORTME fill in with the dynamic library characteristics m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], [m4_require([_LT_DECL_EGREP]) m4_require([_LT_DECL_OBJDUMP]) m4_require([_LT_DECL_DLLTOOL]) AC_CACHE_CHECK([how to associate runtime and link libraries], lt_cv_sharedlib_from_linklib_cmd, [lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh # decide which to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd="$ECHO" ;; esac ]) sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO _LT_DECL([], [sharedlib_from_linklib_cmd], [1], [Command to associate shared and link libraries]) ])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB # _LT_PATH_MANIFEST_TOOL # ---------------------- # locate the manifest tool m4_defun([_LT_PATH_MANIFEST_TOOL], [AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], [lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&AS_MESSAGE_LOG_FD if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest*]) if test "x$lt_cv_path_mainfest_tool" != xyes; then MANIFEST_TOOL=: fi _LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl ])# _LT_PATH_MANIFEST_TOOL # LT_LIB_M # -------- # check for math library AC_DEFUN([LT_LIB_M], [AC_REQUIRE([AC_CANONICAL_HOST])dnl LIBM= case $host in *-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) # These system don't have libm, or don't need it ;; *-ncr-sysv4.3*) AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw") AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") ;; *) AC_CHECK_LIB(m, cos, LIBM="-lm") ;; esac AC_SUBST([LIBM]) ])# LT_LIB_M # Old name: AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_CHECK_LIBM], []) # _LT_COMPILER_NO_RTTI([TAGNAME]) # ------------------------------- m4_defun([_LT_COMPILER_NO_RTTI], [m4_require([_LT_TAG_COMPILER])dnl _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= if test "$GCC" = yes; then case $cc_basename in nvcc*) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; *) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; esac _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], lt_cv_prog_compiler_rtti_exceptions, [-fno-rtti -fno-exceptions], [], [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) fi _LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], [Compiler flag to turn off builtin functions]) ])# _LT_COMPILER_NO_RTTI # _LT_CMD_GLOBAL_SYMBOLS # ---------------------- m4_defun([_LT_CMD_GLOBAL_SYMBOLS], [AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_REQUIRE([AC_PROG_CC])dnl AC_REQUIRE([AC_PROG_AWK])dnl AC_REQUIRE([LT_PATH_NM])dnl AC_REQUIRE([LT_PATH_LD])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_TAG_COMPILER])dnl # Check for command to grab the raw symbol name followed by C symbol from nm. AC_MSG_CHECKING([command to parse $NM output from $compiler object]) AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], [ # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[[BCDEGRST]]' # Regexp to match symbols that can be accessed directly from C. sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[[BCDT]]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[[ABCDGISTW]]' ;; hpux*) if test "$host_cpu" = ia64; then symcode='[[ABCDEGRST]]' fi ;; irix* | nonstopux*) symcode='[[BCDEGRST]]' ;; osf*) symcode='[[BCDEGQRST]]' ;; solaris*) symcode='[[BDRT]]' ;; sco3.2v5*) symcode='[[DT]]' ;; sysv4.2uw2*) symcode='[[DT]]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[[ABDT]]' ;; sysv4) symcode='[[DFNSTU]]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[[ABCDGIRSTW]]' ;; esac # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p'" lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/ {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/ {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/ {\"lib\2\", (void *) \&\2},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function # and D for any global variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK ['"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\ " {split(\$ 0, a, /\||\r/); split(a[2], s)};"\ " s[1]~/^[@?]/{print s[1], s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx]" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if AC_TRY_EVAL(ac_compile); then # Now try to grab the symbols. nlist=conftest.nm if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE) /* DATA imports from DLLs on WIN32 con't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT@&t@_DLSYM_CONST #elif defined(__osf__) /* This system does not cope well with relocations in const data. */ # define LT@&t@_DLSYM_CONST #else # define LT@&t@_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT@&t@_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[[]] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/ {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS="conftstm.$ac_objext" CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD fi else echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test "$pipe_works" = yes; then break else lt_cv_sys_global_symbol_pipe= fi done ]) if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then AC_MSG_RESULT(failed) else AC_MSG_RESULT(ok) fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then nm_file_list_spec='@' fi _LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], [Take the output of nm and produce a listing of raw symbols and C names]) _LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], [Transform the output of nm in a proper C declaration]) _LT_DECL([global_symbol_to_c_name_address], [lt_cv_sys_global_symbol_to_c_name_address], [1], [Transform the output of nm in a C name address pair]) _LT_DECL([global_symbol_to_c_name_address_lib_prefix], [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], [Transform the output of nm in a C name address pair when lib prefix is needed]) _LT_DECL([], [nm_file_list_spec], [1], [Specify filename containing input files for $NM]) ]) # _LT_CMD_GLOBAL_SYMBOLS # _LT_COMPILER_PIC([TAGNAME]) # --------------------------- m4_defun([_LT_COMPILER_PIC], [m4_require([_LT_TAG_COMPILER])dnl _LT_TAGVAR(lt_prog_compiler_wl, $1)= _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)= m4_if([$1], [CXX], [ # C++ specific cases for pic, static, wl, etc. if test "$GXX" = yes; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test "$host_cpu" = ia64; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the `-m68020' flag to GCC prevents building anything better, # like `-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; *djgpp*) # DJGPP does not support shared libraries at all _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac else case $host_os in aix[[4-9]]*) # All AIX code is PIC. if test "$host_cpu" = ia64; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; chorus*) case $cc_basename in cxch68*) # Green Hills C++ Compiler # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" ;; esac ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) ;; dgux*) case $cc_basename in ec++*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; ghcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; freebsd* | dragonfly*) # FreeBSD uses GNU C++ ;; hpux9* | hpux10* | hpux11*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' if test "$host_cpu" != ia64; then _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' fi ;; aCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac ;; *) ;; esac ;; interix*) # This is c89, which is MS Visual C++ (no shared libs) # Anyone wants to do a port? ;; irix5* | irix6* | nonstopux*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' # CC pic flag -KPIC is the default. ;; *) ;; esac ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in KCC*) # KAI C++ Compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; ecpc* ) # old Intel C++ for x86_64 which still supported -KPIC. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; icpc* ) # Intel C++, used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; pgCC* | pgcpp*) # Portland Group C++ compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; cxx*) # Compaq C++ # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL 8.0, 9.0 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*) # Sun C++ 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; esac ;; esac ;; lynxos*) ;; m88k*) ;; mvs*) case $cc_basename in cxx*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' ;; *) ;; esac ;; netbsd* | netbsdelf*-gnu) ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; osf3* | osf4* | osf5*) case $cc_basename in KCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' ;; RCC*) # Rational C++ 2.4.1 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; cxx*) # Digital/Compaq C++ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; *) ;; esac ;; psos*) ;; solaris*) case $cc_basename in CC* | sunCC*) # Sun C++ 4.2, 5.x and Centerline C++ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; gcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' ;; *) ;; esac ;; sunos4*) case $cc_basename in CC*) # Sun C++ 4.x _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; lcc*) # Lucid _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; tandem*) case $cc_basename in NCC*) # NonStop-UX NCC 3.20 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; *) ;; esac ;; vxworks*) ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ], [ if test "$GCC" = yes; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test "$host_cpu" = ia64; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the `-m68020' flag to GCC prevents building anything better, # like `-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; msdosdjgpp*) # Just because we use GCC doesn't mean we suddenly get shared libraries # on systems that don't support them. _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no enable_shared=no ;; *nto* | *qnx*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac case $cc_basename in nvcc*) # Cuda Compiler Driver 2.2 _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" fi ;; esac else # PORTME Check for flag to pass linker flags through the system compiler. case $host_os in aix*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' if test "$host_cpu" = ia64; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) ;; hpux9* | hpux10* | hpux11*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but # not for PA HP-UX. case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac # Is there a better lt_prog_compiler_static that works with the bundled CC? _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive' ;; irix5* | irix6* | nonstopux*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC (with -KPIC) is the default. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in # old Intel for x86_64 which still supported -KPIC. ecc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # icc used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. icc* | ifort*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # Lahey Fortran 8.1. lf95*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' ;; nagfor*) # NAG Fortran compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) # Portland Group compilers (*not* the Pentium gcc compiler, # which looks to be a dead project) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; ccc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # All Alpha code is PIC. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xl* | bgxl* | bgf* | mpixl*) # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) # Sun Fortran 8.3 passes all unrecognized flags to the linker _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='' ;; *Sun\ F* | *Sun*Fortran*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; *Sun\ C*) # Sun C 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' ;; *Intel*\ [[CF]]*Compiler*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; *Portland\ Group*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; esac ;; newsos6) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; *nto* | *qnx*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; osf3* | osf4* | osf5*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # All OSF/1 code is PIC. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; rdos*) _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; solaris*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' case $cc_basename in f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; *) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; esac ;; sunos4*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; sysv4 | sysv4.2uw2* | sysv4.3*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; sysv4*MP*) if test -d /usr/nec ;then _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; unicos*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; uts4*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ]) case $host_os in # For platforms which do not support PIC, -DPIC is meaningless: *djgpp*) _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" ;; esac AC_CACHE_CHECK([for $compiler option to produce PIC], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) _LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) # # Check to make sure the PIC flag actually works. # if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works], [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)], [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [], [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in "" | " "*) ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;; 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amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='' ;; m68k) _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' _LT_TAGVAR(hardcode_minus_L, $1)=yes ;; esac ;; bsdi[[45]]*) _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic ;; cygwin* | mingw* | pw32* | cegcc*) # When not using gcc, we currently assume that we are using # Microsoft Visual C++. # hardcode_libdir_flag_spec is actually meaningless, as there is # no search path for DLLs. case $cc_basename in cl*) # Native MSVC _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' _LT_TAGVAR(allow_undefined_flag, $1)=unsupported _LT_TAGVAR(always_export_symbols, $1)=yes _LT_TAGVAR(file_list_spec, $1)='@' # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=".dll" # FIXME: Setting linknames here is a bad hack. _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; 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*) lt_outputfile="$lt_outputfile.exe" lt_tool_outputfile="$lt_tool_outputfile.exe" ;; esac~ if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; $RM "$lt_outputfile.manifest"; fi' ;; *) # Assume MSVC wrapper _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' _LT_TAGVAR(allow_undefined_flag, $1)=unsupported # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=".dll" # FIXME: Setting linknames here is a bad hack. _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' # The linker will automatically build a .lib file if we build a DLL. _LT_TAGVAR(old_archive_from_new_cmds, $1)='true' # FIXME: Should let the user specify the lib program. _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs' _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes ;; esac ;; darwin* | rhapsody*) _LT_DARWIN_LINKER_FEATURES($1) ;; dgux*) _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' _LT_TAGVAR(hardcode_shlibpath_var, $1)=no ;; # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor # support. 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hpux9*) if test "$GCC" = yes; then _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' else _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' fi _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: _LT_TAGVAR(hardcode_direct, $1)=yes # hardcode_minus_L: Not really in the search PATH, # but as the default location of the library. _LT_TAGVAR(hardcode_minus_L, $1)=yes _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' ;; hpux10*) if test "$GCC" = yes && test "$with_gnu_ld" = no; then _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' else _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' fi if test "$with_gnu_ld" = no; then _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: _LT_TAGVAR(hardcode_direct, $1)=yes _LT_TAGVAR(hardcode_direct_absolute, $1)=yes _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' # hardcode_minus_L: Not really in the search PATH, # but as the default location of the library. _LT_TAGVAR(hardcode_minus_L, $1)=yes fi ;; hpux11*) if test "$GCC" = yes && test "$with_gnu_ld" = no; then case $host_cpu in hppa*64*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' ;; ia64*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' ;; *) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;; esac else case $host_cpu in hppa*64*) _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' ;; ia64*) _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags' ;; *) m4_if($1, [], [ # Older versions of the 11.00 compiler do not understand -b yet # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does) _LT_LINKER_OPTION([if $CC understands -b], _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b], [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'], [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])], [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags']) ;; esac fi if test "$with_gnu_ld" = no; then _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: case $host_cpu in hppa*64*|ia64*) _LT_TAGVAR(hardcode_direct, $1)=no _LT_TAGVAR(hardcode_shlibpath_var, $1)=no ;; *) _LT_TAGVAR(hardcode_direct, $1)=yes _LT_TAGVAR(hardcode_direct_absolute, $1)=yes _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' # hardcode_minus_L: Not really in the search PATH, # but as the default location of the library. _LT_TAGVAR(hardcode_minus_L, $1)=yes ;; esac fi ;; irix5* | irix6* | nonstopux*) if test "$GCC" = yes; then _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib' # Try to use the -exported_symbol ld option, if it does not # work, assume that -exports_file does not work either and # implicitly export all symbols. # This should be the same for all languages, so no per-tag cache variable. 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then _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' else case $host_os in openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*) _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' ;; *) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' ;; esac fi else _LT_TAGVAR(ld_shlibs, $1)=no fi ;; os2*) _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' _LT_TAGVAR(hardcode_minus_L, $1)=yes _LT_TAGVAR(allow_undefined_flag, $1)=unsupported _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def' _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def' ;; 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FIXME _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' else _LT_TAGVAR(ld_shlibs, $1)=no fi ;; chorus*) case $cc_basename in *) # FIXME: insert proper C++ library support _LT_TAGVAR(ld_shlibs, $1)=no ;; esac ;; cygwin* | mingw* | pw32* | cegcc*) case $GXX,$cc_basename in ,cl* | no,cl*) # Native MSVC # hardcode_libdir_flag_spec is actually meaningless, as there is # no search path for DLLs. _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' ' _LT_TAGVAR(allow_undefined_flag, $1)=unsupported _LT_TAGVAR(always_export_symbols, $1)=yes _LT_TAGVAR(file_list_spec, $1)='@' # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=".dll" # FIXME: Setting linknames here is a bad hack. _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames=' _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; 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fi~ $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib' else _LT_TAGVAR(ld_shlibs, $1)=no fi ;; esac ;; darwin* | rhapsody*) _LT_DARWIN_LINKER_FEATURES($1) ;; dgux*) case $cc_basename in ec++*) # FIXME: insert proper C++ library support _LT_TAGVAR(ld_shlibs, $1)=no ;; ghcx*) # Green Hills C++ Compiler # FIXME: insert proper C++ library support _LT_TAGVAR(ld_shlibs, $1)=no ;; *) # FIXME: insert proper C++ library support _LT_TAGVAR(ld_shlibs, $1)=no ;; esac ;; freebsd2.*) # C++ shared libraries reported to be fairly broken before # switch to ELF _LT_TAGVAR(ld_shlibs, $1)=no ;; freebsd-elf*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;; freebsd* | dragonfly*) # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF # conventions _LT_TAGVAR(ld_shlibs, $1)=yes ;; haiku*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' _LT_TAGVAR(link_all_deplibs, $1)=yes ;; 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list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' ;; *) if test "$GXX" = yes; then if test $with_gnu_ld = no; then case $host_cpu in hppa*64*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;; ia64*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;; *) _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;; esac fi else # FIXME: insert proper C++ library support _LT_TAGVAR(ld_shlibs, $1)=no fi ;; esac ;; interix[[3-9]]*) _LT_TAGVAR(hardcode_direct, $1)=no _LT_TAGVAR(hardcode_shlibpath_var, $1)=no _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E' # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc. # Instead, shared libraries are loaded at an image base (0x10000000 by # default) and relocated if they conflict, which is a slow very memory # consuming and fragmenting process. To avoid this, we pick a random, # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link # time. 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|| _lt_function_replace_fail=: else # Save a `func_append' function call even when '+=' is not available sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \ && mv -f "$cfgfile.tmp" "$cfgfile" \ || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp") test 0 -eq $? || _lt_function_replace_fail=: fi if test x"$_lt_function_replace_fail" = x":"; then AC_MSG_WARN([Unable to substitute extended shell functions in $ofile]) fi ]) # _LT_PATH_CONVERSION_FUNCTIONS # ----------------------------- # Determine which file name conversion functions should be used by # func_to_host_file (and, implicitly, by func_to_host_path). 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Vaughan, 2004 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 7 ltoptions.m4 # This is to help aclocal find these macros, as it can't see m4_define. AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])]) # _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME) # ------------------------------------------ m4_define([_LT_MANGLE_OPTION], [[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])]) # _LT_SET_OPTION(MACRO-NAME, OPTION-NAME) # --------------------------------------- # Set option OPTION-NAME for macro MACRO-NAME, and if there is a # matching handler defined, dispatch to it. Other OPTION-NAMEs are # saved as a flag. m4_define([_LT_SET_OPTION], [m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]), _LT_MANGLE_DEFUN([$1], [$2]), [m4_warning([Unknown $1 option `$2'])])[]dnl ]) # _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET]) # ------------------------------------------------------------ # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. m4_define([_LT_IF_OPTION], [m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])]) # _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET) # ------------------------------------------------------- # Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME # are set. m4_define([_LT_UNLESS_OPTIONS], [m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option), [m4_define([$0_found])])])[]dnl m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3 ])[]dnl ]) # _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST) # ---------------------------------------- # OPTION-LIST is a space-separated list of Libtool options associated # with MACRO-NAME. If any OPTION has a matching handler declared with # LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about # the unknown option and exit. m4_defun([_LT_SET_OPTIONS], [# Set options m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), [_LT_SET_OPTION([$1], _LT_Option)]) m4_if([$1],[LT_INIT],[ dnl dnl Simply set some default values (i.e off) if boolean options were not dnl specified: _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no ]) _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no ]) dnl dnl If no reference was made to various pairs of opposing options, then dnl we run the default mode handler for the pair. For example, if neither dnl `shared' nor `disable-shared' was passed, we enable building of shared dnl archives by default: _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED]) _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC]) _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC]) _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install], [_LT_ENABLE_FAST_INSTALL]) ]) ])# _LT_SET_OPTIONS ## --------------------------------- ## ## Macros to handle LT_INIT options. ## ## --------------------------------- ## # _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME) # ----------------------------------------- m4_define([_LT_MANGLE_DEFUN], [[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])]) # LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE) # ----------------------------------------------- m4_define([LT_OPTION_DEFINE], [m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl ])# LT_OPTION_DEFINE # dlopen # ------ LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes ]) AU_DEFUN([AC_LIBTOOL_DLOPEN], [_LT_SET_OPTION([LT_INIT], [dlopen]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the `dlopen' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], []) # win32-dll # --------- # Declare package support for building win32 dll's. LT_OPTION_DEFINE([LT_INIT], [win32-dll], [enable_win32_dll=yes case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) AC_CHECK_TOOL(AS, as, false) AC_CHECK_TOOL(DLLTOOL, dlltool, false) AC_CHECK_TOOL(OBJDUMP, objdump, false) ;; esac test -z "$AS" && AS=as _LT_DECL([], [AS], [1], [Assembler program])dnl test -z "$DLLTOOL" && DLLTOOL=dlltool _LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl test -z "$OBJDUMP" && OBJDUMP=objdump _LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl ])# win32-dll AU_DEFUN([AC_LIBTOOL_WIN32_DLL], [AC_REQUIRE([AC_CANONICAL_HOST])dnl _LT_SET_OPTION([LT_INIT], [win32-dll]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the `win32-dll' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) # _LT_ENABLE_SHARED([DEFAULT]) # ---------------------------- # implement the --enable-shared flag, and supports the `shared' and # `disable-shared' LT_INIT options. # DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. m4_define([_LT_ENABLE_SHARED], [m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([shared], [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@], [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_shared=yes ;; no) enable_shared=no ;; *) enable_shared=no # Look at the argument we got. We use all the common list separators. lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," for pkg in $enableval; do IFS="$lt_save_ifs" if test "X$pkg" = "X$p"; then enable_shared=yes fi done IFS="$lt_save_ifs" ;; esac], [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) _LT_DECL([build_libtool_libs], [enable_shared], [0], [Whether or not to build shared libraries]) ])# _LT_ENABLE_SHARED LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) # Old names: AC_DEFUN([AC_ENABLE_SHARED], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) ]) AC_DEFUN([AC_DISABLE_SHARED], [_LT_SET_OPTION([LT_INIT], [disable-shared]) ]) AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_ENABLE_SHARED], []) dnl AC_DEFUN([AM_DISABLE_SHARED], []) # _LT_ENABLE_STATIC([DEFAULT]) # ---------------------------- # implement the --enable-static flag, and support the `static' and # `disable-static' LT_INIT options. # DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. m4_define([_LT_ENABLE_STATIC], [m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([static], [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_static=yes ;; no) enable_static=no ;; *) enable_static=no # Look at the argument we got. We use all the common list separators. lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," for pkg in $enableval; do IFS="$lt_save_ifs" if test "X$pkg" = "X$p"; then enable_static=yes fi done IFS="$lt_save_ifs" ;; esac], [enable_static=]_LT_ENABLE_STATIC_DEFAULT) _LT_DECL([build_old_libs], [enable_static], [0], [Whether or not to build static libraries]) ])# _LT_ENABLE_STATIC LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) # Old names: AC_DEFUN([AC_ENABLE_STATIC], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) ]) AC_DEFUN([AC_DISABLE_STATIC], [_LT_SET_OPTION([LT_INIT], [disable-static]) ]) AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_ENABLE_STATIC], []) dnl AC_DEFUN([AM_DISABLE_STATIC], []) # _LT_ENABLE_FAST_INSTALL([DEFAULT]) # ---------------------------------- # implement the --enable-fast-install flag, and support the `fast-install' # and `disable-fast-install' LT_INIT options. # DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'. m4_define([_LT_ENABLE_FAST_INSTALL], [m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([fast-install], [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_fast_install=yes ;; no) enable_fast_install=no ;; *) enable_fast_install=no # Look at the argument we got. We use all the common list separators. lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," for pkg in $enableval; do IFS="$lt_save_ifs" if test "X$pkg" = "X$p"; then enable_fast_install=yes fi done IFS="$lt_save_ifs" ;; esac], [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT) _LT_DECL([fast_install], [enable_fast_install], [0], [Whether or not to optimize for fast installation])dnl ])# _LT_ENABLE_FAST_INSTALL LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])]) # Old names: AU_DEFUN([AC_ENABLE_FAST_INSTALL], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the `fast-install' option into LT_INIT's first parameter.]) ]) AU_DEFUN([AC_DISABLE_FAST_INSTALL], [_LT_SET_OPTION([LT_INIT], [disable-fast-install]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the `disable-fast-install' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], []) dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], []) # _LT_WITH_PIC([MODE]) # -------------------- # implement the --with-pic flag, and support the `pic-only' and `no-pic' # LT_INIT options. # MODE is either `yes' or `no'. If omitted, it defaults to `both'. m4_define([_LT_WITH_PIC], [AC_ARG_WITH([pic], [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@], [try to use only PIC/non-PIC objects @<:@default=use both@:>@])], [lt_p=${PACKAGE-default} case $withval in yes|no) pic_mode=$withval ;; *) pic_mode=default # Look at the argument we got. We use all the common list separators. lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR," for lt_pkg in $withval; do IFS="$lt_save_ifs" if test "X$lt_pkg" = "X$lt_p"; then pic_mode=yes fi done IFS="$lt_save_ifs" ;; esac], [pic_mode=default]) test -z "$pic_mode" && pic_mode=m4_default([$1], [default]) _LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl ])# _LT_WITH_PIC LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])]) LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])]) # Old name: AU_DEFUN([AC_LIBTOOL_PICMODE], [_LT_SET_OPTION([LT_INIT], [pic-only]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the `pic-only' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_PICMODE], []) ## ----------------- ## ## LTDL_INIT Options ## ## ----------------- ## m4_define([_LTDL_MODE], []) LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive], [m4_define([_LTDL_MODE], [nonrecursive])]) LT_OPTION_DEFINE([LTDL_INIT], [recursive], [m4_define([_LTDL_MODE], [recursive])]) LT_OPTION_DEFINE([LTDL_INIT], [subproject], [m4_define([_LTDL_MODE], [subproject])]) m4_define([_LTDL_TYPE], []) LT_OPTION_DEFINE([LTDL_INIT], [installable], [m4_define([_LTDL_TYPE], [installable])]) LT_OPTION_DEFINE([LTDL_INIT], [convenience], [m4_define([_LTDL_TYPE], [convenience])]) gperftools-2.4/m4/ltsugar.m40000644000000000000000000001042412454304616012703 00000000000000# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*- # # Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc. # Written by Gary V. Vaughan, 2004 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 6 ltsugar.m4 # This is to help aclocal find these macros, as it can't see m4_define. AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) # lt_join(SEP, ARG1, [ARG2...]) # ----------------------------- # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their # associated separator. # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier # versions in m4sugar had bugs. m4_define([lt_join], [m4_if([$#], [1], [], [$#], [2], [[$2]], [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])]) m4_define([_lt_join], [m4_if([$#$2], [2], [], [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])]) # lt_car(LIST) # lt_cdr(LIST) # ------------ # Manipulate m4 lists. # These macros are necessary as long as will still need to support # Autoconf-2.59 which quotes differently. m4_define([lt_car], [[$1]]) m4_define([lt_cdr], [m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])], [$#], 1, [], [m4_dquote(m4_shift($@))])]) m4_define([lt_unquote], $1) # lt_append(MACRO-NAME, STRING, [SEPARATOR]) # ------------------------------------------ # Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'. # Note that neither SEPARATOR nor STRING are expanded; they are appended # to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked). # No SEPARATOR is output if MACRO-NAME was previously undefined (different # than defined and empty). # # This macro is needed until we can rely on Autoconf 2.62, since earlier # versions of m4sugar mistakenly expanded SEPARATOR but not STRING. m4_define([lt_append], [m4_define([$1], m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])]) # lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...]) # ---------------------------------------------------------- # Produce a SEP delimited list of all paired combinations of elements of # PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list # has the form PREFIXmINFIXSUFFIXn. # Needed until we can rely on m4_combine added in Autoconf 2.62. m4_define([lt_combine], [m4_if(m4_eval([$# > 3]), [1], [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl [[m4_foreach([_Lt_prefix], [$2], [m4_foreach([_Lt_suffix], ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[, [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])]) # lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ]) # ----------------------------------------------------------------------- # Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited # by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ. m4_define([lt_if_append_uniq], [m4_ifdef([$1], [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1], [lt_append([$1], [$2], [$3])$4], [$5])], [lt_append([$1], [$2], [$3])$4])]) # lt_dict_add(DICT, KEY, VALUE) # ----------------------------- m4_define([lt_dict_add], [m4_define([$1($2)], [$3])]) # lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE) # -------------------------------------------- m4_define([lt_dict_add_subkey], [m4_define([$1($2:$3)], [$4])]) # lt_dict_fetch(DICT, KEY, [SUBKEY]) # ---------------------------------- m4_define([lt_dict_fetch], [m4_ifval([$3], m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]), m4_ifdef([$1($2)], [m4_defn([$1($2)])]))]) # lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE]) # ----------------------------------------------------------------- m4_define([lt_if_dict_fetch], [m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4], [$5], [$6])]) # lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...]) # -------------------------------------------------------------- m4_define([lt_dict_filter], [m4_if([$5], [], [], [lt_join(m4_quote(m4_default([$4], [[, ]])), lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]), [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl ]) gperftools-2.4/m4/ltversion.m40000644000000000000000000000126212454304616013247 00000000000000# ltversion.m4 -- version numbers -*- Autoconf -*- # # Copyright (C) 2004 Free Software Foundation, Inc. # Written by Scott James Remnant, 2004 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # @configure_input@ # serial 3337 ltversion.m4 # This file is part of GNU Libtool m4_define([LT_PACKAGE_VERSION], [2.4.2]) m4_define([LT_PACKAGE_REVISION], [1.3337]) AC_DEFUN([LTVERSION_VERSION], [macro_version='2.4.2' macro_revision='1.3337' _LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?]) _LT_DECL(, macro_revision, 0) ]) gperftools-2.4/m4/lt~obsolete.m40000644000000000000000000001375612454304616013607 00000000000000# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*- # # Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc. # Written by Scott James Remnant, 2004. # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 5 lt~obsolete.m4 # These exist entirely to fool aclocal when bootstrapping libtool. # # In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN) # which have later been changed to m4_define as they aren't part of the # exported API, or moved to Autoconf or Automake where they belong. # # The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN # in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us # using a macro with the same name in our local m4/libtool.m4 it'll # pull the old libtool.m4 in (it doesn't see our shiny new m4_define # and doesn't know about Autoconf macros at all.) # # So we provide this file, which has a silly filename so it's always # included after everything else. This provides aclocal with the # AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything # because those macros already exist, or will be overwritten later. # We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. # # Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here. # Yes, that means every name once taken will need to remain here until # we give up compatibility with versions before 1.7, at which point # we need to keep only those names which we still refer to. # This is to help aclocal find these macros, as it can't see m4_define. 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AC_DEFUN([AC_PC_FROM_UCONTEXT], [AC_CHECK_HEADERS(ucontext.h) # Redhat 7 has , but it barfs if we #include it directly # (this was fixed in later redhats). works fine, so use that. if grep "Red Hat Linux release 7" /etc/redhat-release >/dev/null 2>&1; then AC_DEFINE(HAVE_SYS_UCONTEXT_H, 0, [ is broken on redhat 7]) ac_cv_header_sys_ucontext_h=no else AC_CHECK_HEADERS(sys/ucontext.h) # ucontext on OS X 10.6 (at least) fi AC_CHECK_HEADERS(cygwin/signal.h) # ucontext on cywgin AC_MSG_CHECKING([how to access the program counter from a struct ucontext]) pc_fields=" uc_mcontext.gregs[[REG_PC]]" # Solaris x86 (32 + 64 bit) pc_fields="$pc_fields uc_mcontext.gregs[[REG_EIP]]" # Linux (i386) pc_fields="$pc_fields uc_mcontext.gregs[[REG_RIP]]" # Linux (x86_64) pc_fields="$pc_fields uc_mcontext.sc_ip" # Linux (ia64) pc_fields="$pc_fields uc_mcontext.pc" # Linux (mips) pc_fields="$pc_fields uc_mcontext.uc_regs->gregs[[PT_NIP]]" # Linux (ppc) pc_fields="$pc_fields uc_mcontext.gregs[[R15]]" # Linux (arm old [untested]) pc_fields="$pc_fields uc_mcontext.arm_pc" # Linux (arm arch 5) pc_fields="$pc_fields uc_mcontext.gp_regs[[PT_NIP]]" # Suse SLES 11 (ppc64) pc_fields="$pc_fields uc_mcontext.mc_eip" # FreeBSD (i386) pc_fields="$pc_fields uc_mcontext.mc_rip" # FreeBSD (x86_64 [untested]) pc_fields="$pc_fields uc_mcontext.__gregs[[_REG_EIP]]" # NetBSD (i386) pc_fields="$pc_fields uc_mcontext.__gregs[[_REG_RIP]]" # NetBSD (x86_64) pc_fields="$pc_fields uc_mcontext->ss.eip" # OS X (i386, <=10.4) pc_fields="$pc_fields uc_mcontext->__ss.__eip" # OS X (i386, >=10.5) pc_fields="$pc_fields uc_mcontext->ss.rip" # OS X (x86_64) pc_fields="$pc_fields uc_mcontext->__ss.__rip" # OS X (>=10.5 [untested]) pc_fields="$pc_fields uc_mcontext->ss.srr0" # OS X (ppc, ppc64 [untested]) pc_fields="$pc_fields uc_mcontext->__ss.__srr0" # OS X (>=10.5 [untested]) pc_field_found=false for pc_field in $pc_fields; do if ! $pc_field_found; then # Prefer sys/ucontext.h to ucontext.h, for OS X's sake. if test "x$ac_cv_header_cygwin_signal_h" = xyes; then AC_TRY_COMPILE([#define _GNU_SOURCE 1 #include ], [ucontext_t u; return u.$pc_field == 0;], AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field, How to access the PC from a struct ucontext) AC_MSG_RESULT([$pc_field]) pc_field_found=true) elif test "x$ac_cv_header_sys_ucontext_h" = xyes; then AC_TRY_COMPILE([#define _GNU_SOURCE 1 #include ], [ucontext_t u; return u.$pc_field == 0;], AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field, How to access the PC from a struct ucontext) AC_MSG_RESULT([$pc_field]) pc_field_found=true) elif test "x$ac_cv_header_ucontext_h" = xyes; then AC_TRY_COMPILE([#define _GNU_SOURCE 1 #include ], [ucontext_t u; return u.$pc_field == 0;], AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field, How to access the PC from a struct ucontext) AC_MSG_RESULT([$pc_field]) pc_field_found=true) else # hope some standard header gives it to us AC_TRY_COMPILE([], [ucontext_t u; return u.$pc_field == 0;], AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field, How to access the PC from a struct ucontext) AC_MSG_RESULT([$pc_field]) pc_field_found=true) fi fi done if ! $pc_field_found; then pc_fields=" sc_eip" # OpenBSD (i386) pc_fields="$pc_fields sc_rip" # OpenBSD (x86_64) for pc_field in $pc_fields; do if ! $pc_field_found; then AC_TRY_COMPILE([#include ], [ucontext_t u; return u.$pc_field == 0;], AC_DEFINE_UNQUOTED(PC_FROM_UCONTEXT, $pc_field, How to access the PC from a struct ucontext) AC_MSG_RESULT([$pc_field]) pc_field_found=true) fi done fi if ! $pc_field_found; then [$1] fi]) gperftools-2.4/m4/program_invocation_name.m40000644000000000000000000000122112371745612016120 00000000000000# We need to be careful to avoid having the reference to # program_invocation_name optimized out. 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Buildroot: %{_tmppath}/%{name}-root Prefix: %prefix %description The %name packages contains some utilities to improve and analyze the performance of C++ programs. This includes an optimized thread-caching malloc() and cpu and heap profiling utilities. %package devel Summary: Performance tools for C++ Group: Development/Libraries Requires: %{NAME} = %{VERSION} %description devel The %name-devel package contains static and debug libraries and header files for developing applications that use the %name package. %changelog * Mon Apr 20 2009 - Change build rule to use a configure line more like '%configure' - Change install to use DESTDIR instead of prefix for configure - Use wildcards for doc/ and lib/ directories * Fri Mar 11 2005 - First draft %prep %setup %build # I can't use '% configure', because it defines -m32 which breaks some # of the low-level atomicops files in this package. But I do take # as much from % configure (in /usr/lib/rpm/macros) as I can. ./configure --prefix=%{_prefix} --exec-prefix=%{_exec_prefix} --bindir=%{_bindir} --sbindir=%{_sbindir} --sysconfdir=%{_sysconfdir} --datadir=%{_datadir} --includedir=%{_includedir} --libdir=%{_libdir} --libexecdir=%{_libexecdir} --localstatedir=%{_localstatedir} --sharedstatedir=%{_sharedstatedir} --mandir=%{_mandir} --infodir=%{_infodir} make %install rm -rf $RPM_BUILD_ROOT make DESTDIR=$RPM_BUILD_ROOT install %clean rm -rf $RPM_BUILD_ROOT %files %defattr(-,root,root) %docdir %{prefix}/share/doc/%{NAME}-%{VERSION} %{prefix}/share/doc/%{NAME}-%{VERSION}/* %{_libdir}/*.so.* %{_bindir}/pprof %{_mandir}/man1/pprof.1* %files devel %defattr(-,root,root) %{_includedir}/google %{_includedir}/gperftools %{_libdir}/*.a %{_libdir}/*.la %{_libdir}/*.so %{_libdir}/pkgconfig/*.pc gperftools-2.4/packages/rpm.sh0000755000000000000000000000514512372001603013344 00000000000000#!/bin/sh -e # Run this from the 'packages' directory, just under rootdir # We can only build rpm packages, if the rpm build tools are installed if [ \! -x /usr/bin/rpmbuild ] then echo "Cannot find /usr/bin/rpmbuild. Not building an rpm." 1>&2 exit 0 fi # Check the commandline flags PACKAGE="$1" VERSION="$2" fullname="${PACKAGE}-${VERSION}" archive=../$fullname.tar.gz if [ -z "$1" -o -z "$2" ] then echo "Usage: $0 " 1>&2 exit 0 fi # Double-check we're in the packages directory, just under rootdir if [ \! -r ../Makefile -a \! -r ../INSTALL ] then echo "Must run $0 in the 'packages' directory, under the root directory." 1>&2 echo "Also, you must run \"make dist\" before running this script." 1>&2 exit 0 fi if [ \! -r "$archive" ] then echo "Cannot find $archive. Run \"make dist\" first." 1>&2 exit 0 fi # Create the directory where the input lives, and where the output should live RPM_SOURCE_DIR="/tmp/rpmsource-$fullname" RPM_BUILD_DIR="/tmp/rpmbuild-$fullname" trap 'rm -rf $RPM_SOURCE_DIR $RPM_BUILD_DIR; exit $?' EXIT SIGHUP SIGINT SIGTERM rm -rf "$RPM_SOURCE_DIR" "$RPM_BUILD_DIR" mkdir "$RPM_SOURCE_DIR" mkdir "$RPM_BUILD_DIR" cp "$archive" "$RPM_SOURCE_DIR" # rpmbuild -- as far as I can tell -- asks the OS what CPU it has. # This may differ from what kind of binaries gcc produces. dpkg # does a better job of this, so if we can run 'dpkg --print-architecture' # to get the build CPU, we use that in preference of the rpmbuild # default. target=`dpkg --print-architecture 2>/dev/null || echo ""` if [ -n "$target" ] then target=" --target $target" fi rpmbuild -bb rpm/rpm.spec $target \ --define "NAME $PACKAGE" \ --define "VERSION $VERSION" \ --define "_sourcedir $RPM_SOURCE_DIR" \ --define "_builddir $RPM_BUILD_DIR" \ --define "_rpmdir $RPM_SOURCE_DIR" # We put the output in a directory based on what system we've built for destdir=rpm-unknown if [ -r /etc/issue ] then grep "Red Hat.*release 7" /etc/issue >/dev/null 2>&1 && destdir=rh7 grep "Red Hat.*release 8" /etc/issue >/dev/null 2>&1 && destdir=rh8 grep "Red Hat.*release 9" /etc/issue >/dev/null 2>&1 && destdir=rh9 grep "Fedora Core.*release 1" /etc/issue >/dev/null 2>&1 && destdir=fc1 grep "Fedora Core.*release 2" /etc/issue >/dev/null 2>&1 && destdir=fc2 grep "Fedora Core.*release 3" /etc/issue >/dev/null 2>&1 && destdir=fc3 fi rm -rf "$destdir" mkdir -p "$destdir" # We want to get not only the main package but devel etc, hence the middle * mv "$RPM_SOURCE_DIR"/*/"${PACKAGE}"-*"${VERSION}"*.rpm "$destdir" echo echo "The rpm package file(s) are located in $PWD/$destdir" gperftools-2.4/packages/deb.sh0000755000000000000000000000500012371745612013304 00000000000000#!/bin/bash -e # This takes one commandline argument, the name of the package. If no # name is given, then we'll end up just using the name associated with # an arbitrary .tar.gz file in the rootdir. That's fine: there's probably # only one. # # Run this from the 'packages' directory, just under rootdir ## Set LIB to lib if exporting a library, empty-string else LIB= #LIB=lib PACKAGE="$1" VERSION="$2" # We can only build Debian packages, if the Debian build tools are installed if [ \! -x /usr/bin/debuild ]; then echo "Cannot find /usr/bin/debuild. Not building Debian packages." 1>&2 exit 0 fi # Double-check we're in the packages directory, just under rootdir if [ \! -r ../Makefile -a \! -r ../INSTALL ]; then echo "Must run $0 in the 'packages' directory, under the root directory." 1>&2 echo "Also, you must run \"make dist\" before running this script." 1>&2 exit 0 fi # Find the top directory for this package topdir="${PWD%/*}" # Find the tar archive built by "make dist" archive="${PACKAGE}-${VERSION}" archive_with_underscore="${PACKAGE}_${VERSION}" if [ -z "${archive}" ]; then echo "Cannot find ../$PACKAGE*.tar.gz. Run \"make dist\" first." 1>&2 exit 0 fi # Create a pristine directory for building the Debian package files trap 'rm -rf '`pwd`/tmp'; exit $?' EXIT SIGHUP SIGINT SIGTERM rm -rf tmp mkdir -p tmp cd tmp # Debian has very specific requirements about the naming of build # directories, and tar archives. It also wants to write all generated # packages to the parent of the source directory. We accommodate these # requirements by building directly from the tar file. ln -s "${topdir}/${archive}.tar.gz" "${LIB}${archive}.orig.tar.gz" # Some version of debuilder want foo.orig.tar.gz with _ between versions. ln -s "${topdir}/${archive}.tar.gz" "${LIB}${archive_with_underscore}.orig.tar.gz" tar zfx "${LIB}${archive}.orig.tar.gz" [ -n "${LIB}" ] && mv "${archive}" "${LIB}${archive}" cd "${LIB}${archive}" # This is one of those 'specific requirements': where the deb control files live cp -a "packages/deb" "debian" # Now, we can call Debian's standard build tool debuild -uc -us cd ../.. # get back to the original top-level dir # We'll put the result in a subdirectory that's named after the OS version # we've made this .deb file for. destdir="debian-$(cat /etc/debian_version 2>/dev/null || echo UNKNOWN)" rm -rf "$destdir" mkdir -p "$destdir" mv $(find tmp -mindepth 1 -maxdepth 1 -type f) "$destdir" echo echo "The Debian package files are located in $PWD/$destdir" gperftools-2.4/packages/deb/0000755000000000000000000000000012440704174013025 500000000000000gperftools-2.4/packages/deb/README0000644000000000000000000000045712371745612013640 00000000000000The list of files here isn't complete. For a step-by-step guide on how to set this package up correctly, check out http://www.debian.org/doc/maint-guide/ Most of the files that are in this directory are boilerplate. However, you may need to change the list of binary-arch dependencies in 'rules'. gperftools-2.4/packages/deb/changelog0000644000000000000000000001244612440704174014626 00000000000000gperftools (2.1-1) unstable; urgency=low * New upstream release. -- gperftools Contributors Tue, 30 Jul 2013 11:51:13 +0300 gperftools (2.0.99-1) unstable; urgency=low * New upstream release. -- gperftools Contributors Sat, 20 Jul 2013 14:21:10 -0700 gperftools (2.0-1) unstable; urgency=low * New upstream release. * Package renamed from google-perftools to gperftools. -- Google Inc. and others Fri, 03 Feb 2012 15:40:45 -0800 google-perftools (1.10-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 31 Jan 2012 10:43:50 -0800 google-perftools (1.9-1) unstable; urgency=low * New upstream release. -- Google Inc. Thu, 22 Dec 2011 16:22:45 -0800 google-perftools (1.8-1) unstable; urgency=low * New upstream release. -- Google Inc. Fri, 15 Jul 2011 16:10:51 -0700 google-perftools (1.7-1) unstable; urgency=low * New upstream release. -- Google Inc. Fri, 04 Feb 2011 15:54:31 -0800 google-perftools (1.6-1) unstable; urgency=low * New upstream release. -- Google Inc. Thu, 05 Aug 2010 12:48:03 -0700 google-perftools (1.5-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 19 Jan 2010 14:46:12 -0800 google-perftools (1.4-1) unstable; urgency=low * New upstream release. -- Google Inc. Thu, 10 Sep 2009 13:51:15 -0700 google-perftools (1.3-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 09 Jun 2009 18:19:06 -0700 google-perftools (1.2-1) unstable; urgency=low * New upstream release. -- Google Inc. Fri, 17 Apr 2009 16:40:48 -0700 google-perftools (1.1-1) unstable; urgency=low * New upstream release. -- Google Inc. Wed, 11 Mar 2009 11:25:34 -0700 google-perftools (1.0-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 06 Jan 2009 13:58:56 -0800 google-perftools (1.0rc1-1) unstable; urgency=low * New upstream release. -- Google Inc. Thu, 11 Dec 2008 16:01:32 -0800 google-perftools (0.99.1-1) unstable; urgency=low * New upstream release. -- Google Inc. Sat, 20 Sep 2008 09:37:18 -0700 google-perftools (0.99-1) unstable; urgency=low * New upstream release. -- Google Inc. Thu, 18 Sep 2008 16:00:27 -0700 google-perftools (0.98-1) unstable; urgency=low * New upstream release. -- Google Inc. Mon, 09 Jun 2008 16:47:03 -0700 google-perftools (0.97-1) unstable; urgency=low * New upstream release. -- Google Inc. Mon, 21 Apr 2008 15:20:52 -0700 google-perftools (0.96-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 18 Mar 2008 14:30:44 -0700 google-perftools (0.95-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 12 Feb 2008 12:28:32 -0800 google-perftools (0.94-1) unstable; urgency=low * New upstream release. -- Google Inc. Thu, 29 Nov 2007 07:59:43 -0800 google-perftools (0.93-1) unstable; urgency=low * New upstream release. -- Google Inc. Fri, 17 Aug 2007 12:32:56 -0700 google-perftools (0.92-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 17 Jul 2007 22:26:27 -0700 google-perftools (0.91-1) unstable; urgency=low * New upstream release. -- Google Inc. Wed, 18 Apr 2007 16:43:55 -0700 google-perftools (0.90-1) unstable; urgency=low * New upstream release. -- Google Inc. Fri, 13 Apr 2007 14:50:51 -0700 google-perftools (0.8-1) unstable; urgency=low * New upstream release. -- Google Inc. Wed, 14 Jun 2006 15:11:14 -0700 google-perftools (0.7-1) unstable; urgency=low * New upstream release. -- Google Inc. Thu, 13 Apr 2006 20:59:09 -0700 google-perftools (0.6-1) unstable; urgency=low * New upstream release. -- Google Inc. Fri, 27 Jan 2006 14:04:27 -0800 google-perftools (0.5-1) unstable; urgency=low * New upstream release. -- Google Inc. Mon, Nov 14 17:28:59 2005 -0800 google-perftools (0.4-1) unstable; urgency=low * New upstream release. -- Google Inc. Wed, 26 Oct 2005 15:19:16 -0700 google-perftools (0.3-1) unstable; urgency=low * New upstream release. -- Google Inc. Fri, 24 Jun 2005 18:02:26 -0700 google-perftools (0.2-1) unstable; urgency=low * New upstream release. -- Google Inc. Tue, 31 May 2005 08:14:38 -0700 google-perftools (0.1-1) unstable; urgency=low * Initial release. The google-perftools package contains some utilities to improve and analyze the performance of C++ programs. This includes an optimized thread-caching malloc() and cpu and heap profiling utilities. -- Google Inc. Fri, 11 Mar 2005 08:07:33 -0800 gperftools-2.4/packages/deb/control0000644000000000000000000000207212440704174014351 00000000000000Source: gperftools Priority: optional Maintainer: gperftools Contributors Build-Depends: debhelper (>= 4.0.0), binutils Standards-Version: 3.6.1 Package: libgperftools-dev Section: libdevel Architecture: any Depends: libgperftools0 (= ${Source-Version}) Description: libraries for CPU and heap analysis, plus an efficient thread-caching malloc The gperftools package contains some utilities to improve and analyze the performance of C++ programs. This includes an optimized thread-caching malloc() and cpu and heap profiling utilities. The devel package contains static and debug libraries and header files for developing applications that use the gperftools package. Package: libgperftools0 Section: libs Architecture: any Depends: ${shlibs:Depends} Description: libraries for CPU and heap analysis, plus an efficient thread-caching malloc The gperftools package contains some utilities to improve and analyze the performance of C++ programs. This includes an optimized thread-caching malloc() and cpu and heap profiling utilities. gperftools-2.4/packages/deb/compat0000644000000000000000000000000212371745612014150 000000000000004 gperftools-2.4/packages/deb/copyright0000644000000000000000000000341012440704174014676 00000000000000This package was debianized by gperftools Contributors on Sat, 20 Jul 2013 14:21:10 -0700. It was downloaded from http://code.google.com/p/gperftools/downloads/list Upstream Author: google-perftools@googlegroups.com Copyright (c) 2005, Google Inc. All rights reserved. Copyright (c) 2013, gperftools Contributors All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. gperftools-2.4/packages/deb/docs0000644000000000000000000000270712371745612013633 00000000000000AUTHORS COPYING ChangeLog INSTALL NEWS README TODO doc/cpuprofile.html doc/cpuprofile-fileformat.html doc/designstyle.css doc/heap-example1.png doc/heap_checker.html doc/heapprofile.html doc/index.html doc/overview.gif doc/pageheap.gif doc/pprof-test-big.gif doc/pprof-test.gif doc/pprof-vsnprintf-big.gif doc/pprof-vsnprintf.gif doc/pprof.1 doc/pprof_remote_servers.html doc/spanmap.gif doc/t-test1.times.txt doc/tcmalloc-opspercpusec.vs.threads.1024.bytes.png doc/tcmalloc-opspercpusec.vs.threads.128.bytes.png doc/tcmalloc-opspercpusec.vs.threads.131072.bytes.png doc/tcmalloc-opspercpusec.vs.threads.16384.bytes.png doc/tcmalloc-opspercpusec.vs.threads.2048.bytes.png doc/tcmalloc-opspercpusec.vs.threads.256.bytes.png doc/tcmalloc-opspercpusec.vs.threads.32768.bytes.png doc/tcmalloc-opspercpusec.vs.threads.4096.bytes.png doc/tcmalloc-opspercpusec.vs.threads.512.bytes.png doc/tcmalloc-opspercpusec.vs.threads.64.bytes.png doc/tcmalloc-opspercpusec.vs.threads.65536.bytes.png doc/tcmalloc-opspercpusec.vs.threads.8192.bytes.png doc/tcmalloc-opspersec.vs.size.1.threads.png doc/tcmalloc-opspersec.vs.size.12.threads.png doc/tcmalloc-opspersec.vs.size.16.threads.png doc/tcmalloc-opspersec.vs.size.2.threads.png doc/tcmalloc-opspersec.vs.size.20.threads.png doc/tcmalloc-opspersec.vs.size.3.threads.png doc/tcmalloc-opspersec.vs.size.4.threads.png doc/tcmalloc-opspersec.vs.size.5.threads.png doc/tcmalloc-opspersec.vs.size.8.threads.png doc/tcmalloc.html doc/threadheap.gif gperftools-2.4/packages/deb/libgperftools-dev.dirs0000644000000000000000000000012012372001603017237 00000000000000usr/lib usr/lib/pkgconfig usr/include usr/include/google usr/include/gperftools gperftools-2.4/packages/deb/libgperftools-dev.install0000644000000000000000000000044412372001603017755 00000000000000usr/include/google/* usr/include/gperftools/* usr/lib/lib*.so usr/lib/lib*.a usr/lib/*.la usr/lib/pkgconfig/*.pc debian/tmp/usr/include/google/* debian/tmp/usr/include/gperftools/* debian/tmp/usr/lib/lib*.so debian/tmp/usr/lib/lib*.a debian/tmp/usr/lib/*.la debian/tmp/usr/lib/pkgconfig/*.pc gperftools-2.4/packages/deb/libgperftools0.dirs0000644000000000000000000000002012372001603016542 00000000000000usr/lib usr/bin gperftools-2.4/packages/deb/libgperftools0.install0000644000000000000000000000013012372001603017251 00000000000000usr/lib/lib*.so.* usr/bin/pprof* debian/tmp/usr/lib/lib*.so.* debian/tmp/usr/bin/pprof* gperftools-2.4/packages/deb/libgperftools0.manpages0000644000000000000000000000001412372001603017377 00000000000000doc/pprof.1 gperftools-2.4/packages/deb/rules0000755000000000000000000000554212371745612014040 00000000000000#!/usr/bin/make -f # -*- makefile -*- # Sample debian/rules that uses debhelper. # This file was originally written by Joey Hess and Craig Small. # As a special exception, when this file is copied by dh-make into a # dh-make output file, you may use that output file without restriction. # This special exception was added by Craig Small in version 0.37 of dh-make. # Uncomment this to turn on verbose mode. #export DH_VERBOSE=1 # These are used for cross-compiling and for saving the configure script # from having to guess our platform (since we know it already) DEB_HOST_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE) DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE) CFLAGS = -Wall -g ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS))) CFLAGS += -O0 else CFLAGS += -O2 endif ifeq (,$(findstring nostrip,$(DEB_BUILD_OPTIONS))) INSTALL_PROGRAM += -s endif # shared library versions, option 1 #version=2.0.5 #major=2 # option 2, assuming the library is created as src/.libs/libfoo.so.2.0.5 or so version=`ls src/.libs/lib*.so.* | \ awk '{if (match($$0,/[0-9]+\.[0-9]+\.[0-9]+$$/)) print substr($$0,RSTART)}'` major=`ls src/.libs/lib*.so.* | \ awk '{if (match($$0,/\.so\.[0-9]+$$/)) print substr($$0,RSTART+4)}'` config.status: configure dh_testdir # Add here commands to configure the package. CFLAGS="$(CFLAGS)" ./configure --host=$(DEB_HOST_GNU_TYPE) --build=$(DEB_BUILD_GNU_TYPE) --prefix=/usr --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info build: build-stamp build-stamp: config.status dh_testdir # Add here commands to compile the package. $(MAKE) touch build-stamp clean: dh_testdir dh_testroot rm -f build-stamp # Add here commands to clean up after the build process. -$(MAKE) distclean ifneq "$(wildcard /usr/share/misc/config.sub)" "" cp -f /usr/share/misc/config.sub config.sub endif ifneq "$(wildcard /usr/share/misc/config.guess)" "" cp -f /usr/share/misc/config.guess config.guess endif dh_clean install: build dh_testdir dh_testroot dh_clean -k dh_installdirs # Add here commands to install the package into debian/tmp $(MAKE) install DESTDIR=$(CURDIR)/debian/tmp # Build architecture-independent files here. binary-indep: build install # We have nothing to do by default. # Build architecture-dependent files here. binary-arch: build install dh_testdir dh_testroot dh_installchangelogs ChangeLog dh_installdocs dh_installexamples dh_install --sourcedir=debian/tmp # dh_installmenu # dh_installdebconf # dh_installlogrotate # dh_installemacsen # dh_installpam # dh_installmime # dh_installinit # dh_installcron # dh_installinfo dh_installman dh_link dh_strip dh_compress dh_fixperms # dh_perl # dh_python dh_makeshlibs dh_installdeb dh_shlibdeps dh_gencontrol dh_md5sums dh_builddeb binary: binary-indep binary-arch .PHONY: build clean binary-indep binary-arch binary install gperftools-2.4/src/0000755000000000000000000000000012454304761011307 500000000000000gperftools-2.4/src/base/0000755000000000000000000000000012454304760012220 500000000000000gperftools-2.4/src/base/logging.cc0000644000000000000000000000733112440704174014077 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // This file just provides storage for FLAGS_verbose. #include #include "base/logging.h" #include "base/commandlineflags.h" DEFINE_int32(verbose, EnvToInt("PERFTOOLS_VERBOSE", 0), "Set to numbers >0 for more verbose output, or <0 for less. " "--verbose == -4 means we log fatal errors only."); #if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) // While windows does have a POSIX-compatible API // (_open/_write/_close), it acquires memory. Using this lower-level // windows API is the closest we can get to being "raw". RawFD RawOpenForWriting(const char* filename) { // CreateFile allocates memory if file_name isn't absolute, so if // that ever becomes a problem then we ought to compute the absolute // path on its behalf (perhaps the ntdll/kernel function isn't aware // of the working directory?) RawFD fd = CreateFileA(filename, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL); if (fd != kIllegalRawFD && GetLastError() == ERROR_ALREADY_EXISTS) SetEndOfFile(fd); // truncate the existing file return fd; } void RawWrite(RawFD handle, const char* buf, size_t len) { while (len > 0) { DWORD wrote; BOOL ok = WriteFile(handle, buf, len, &wrote, NULL); // We do not use an asynchronous file handle, so ok==false means an error if (!ok) break; buf += wrote; len -= wrote; } } void RawClose(RawFD handle) { CloseHandle(handle); } #else // _WIN32 || __CYGWIN__ || __CYGWIN32__ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_FCNTL_H #include #endif // Re-run fn until it doesn't cause EINTR. #define NO_INTR(fn) do {} while ((fn) < 0 && errno == EINTR) RawFD RawOpenForWriting(const char* filename) { return open(filename, O_WRONLY|O_CREAT|O_TRUNC, 0664); } void RawWrite(RawFD fd, const char* buf, size_t len) { while (len > 0) { ssize_t r; NO_INTR(r = write(fd, buf, len)); if (r <= 0) break; buf += r; len -= r; } } void RawClose(RawFD fd) { NO_INTR(close(fd)); } #endif // _WIN32 || __CYGWIN__ || __CYGWIN32__ gperftools-2.4/src/base/dynamic_annotations.c0000644000000000000000000001701112440704174016343 00000000000000/* Copyright (c) 2008-2009, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Kostya Serebryany */ #ifdef __cplusplus # error "This file should be built as pure C to avoid name mangling" #endif #include "config.h" #include #include #include "base/dynamic_annotations.h" #include "getenv_safe.h" // for TCMallocGetenvSafe #ifdef __GNUC__ /* valgrind.h uses gcc extensions so it won't build with other compilers */ # ifdef HAVE_VALGRIND_H /* prefer the user's copy if they have it */ # include # else /* otherwise just use the copy that we have */ # include "third_party/valgrind.h" # endif #endif /* Compiler-based ThreadSanitizer defines DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL = 1 and provides its own definitions of the functions. */ #ifndef DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL # define DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL 0 #endif /* Each function is empty and called (via a macro) only in debug mode. The arguments are captured by dynamic tools at runtime. */ #if DYNAMIC_ANNOTATIONS_ENABLED == 1 \ && DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL == 0 void AnnotateRWLockCreate(const char *file, int line, const volatile void *lock){} void AnnotateRWLockDestroy(const char *file, int line, const volatile void *lock){} void AnnotateRWLockAcquired(const char *file, int line, const volatile void *lock, long is_w){} void AnnotateRWLockReleased(const char *file, int line, const volatile void *lock, long is_w){} void AnnotateBarrierInit(const char *file, int line, const volatile void *barrier, long count, long reinitialization_allowed) {} void AnnotateBarrierWaitBefore(const char *file, int line, const volatile void *barrier) {} void AnnotateBarrierWaitAfter(const char *file, int line, const volatile void *barrier) {} void AnnotateBarrierDestroy(const char *file, int line, const volatile void *barrier) {} void AnnotateCondVarWait(const char *file, int line, const volatile void *cv, const volatile void *lock){} void AnnotateCondVarSignal(const char *file, int line, const volatile void *cv){} void AnnotateCondVarSignalAll(const char *file, int line, const volatile void *cv){} void AnnotatePublishMemoryRange(const char *file, int line, const volatile void *address, long size){} void AnnotateUnpublishMemoryRange(const char *file, int line, const volatile void *address, long size){} void AnnotatePCQCreate(const char *file, int line, const volatile void *pcq){} void AnnotatePCQDestroy(const char *file, int line, const volatile void *pcq){} void AnnotatePCQPut(const char *file, int line, const volatile void *pcq){} void AnnotatePCQGet(const char *file, int line, const volatile void *pcq){} void AnnotateNewMemory(const char *file, int line, const volatile void *mem, long size){} void AnnotateExpectRace(const char *file, int line, const volatile void *mem, const char *description){} void AnnotateBenignRace(const char *file, int line, const volatile void *mem, const char *description){} void AnnotateBenignRaceSized(const char *file, int line, const volatile void *mem, long size, const char *description) {} void AnnotateMutexIsUsedAsCondVar(const char *file, int line, const volatile void *mu){} void AnnotateTraceMemory(const char *file, int line, const volatile void *arg){} void AnnotateThreadName(const char *file, int line, const char *name){} void AnnotateIgnoreReadsBegin(const char *file, int line){} void AnnotateIgnoreReadsEnd(const char *file, int line){} void AnnotateIgnoreWritesBegin(const char *file, int line){} void AnnotateIgnoreWritesEnd(const char *file, int line){} void AnnotateEnableRaceDetection(const char *file, int line, int enable){} void AnnotateNoOp(const char *file, int line, const volatile void *arg){} void AnnotateFlushState(const char *file, int line){} #endif /* DYNAMIC_ANNOTATIONS_ENABLED == 1 && DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL == 0 */ #if DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL == 0 static int GetRunningOnValgrind(void) { #ifdef RUNNING_ON_VALGRIND if (RUNNING_ON_VALGRIND) return 1; #endif const char *running_on_valgrind_str = TCMallocGetenvSafe("RUNNING_ON_VALGRIND"); if (running_on_valgrind_str) { return strcmp(running_on_valgrind_str, "0") != 0; } return 0; } /* See the comments in dynamic_annotations.h */ int RunningOnValgrind(void) { static volatile int running_on_valgrind = -1; int local_running_on_valgrind = running_on_valgrind; /* C doesn't have thread-safe initialization of statics, and we don't want to depend on pthread_once here, so hack it. */ ANNOTATE_BENIGN_RACE(&running_on_valgrind, "safe hack"); if (local_running_on_valgrind == -1) running_on_valgrind = local_running_on_valgrind = GetRunningOnValgrind(); return local_running_on_valgrind; } #endif /* DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL == 0 */ /* See the comments in dynamic_annotations.h */ double ValgrindSlowdown(void) { /* Same initialization hack as in RunningOnValgrind(). */ static volatile double slowdown = 0.0; double local_slowdown = slowdown; ANNOTATE_BENIGN_RACE(&slowdown, "safe hack"); if (RunningOnValgrind() == 0) { return 1.0; } if (local_slowdown == 0.0) { char *env = getenv("VALGRIND_SLOWDOWN"); slowdown = local_slowdown = env ? atof(env) : 50.0; } return local_slowdown; } gperftools-2.4/src/base/logging.h0000644000000000000000000002663612440704174013752 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // This file contains #include information about logging-related stuff. // Pretty much everybody needs to #include this file so that they can // log various happenings. // #ifndef _LOGGING_H_ #define _LOGGING_H_ #include #include #include #include #ifdef HAVE_UNISTD_H #include // for write() #endif #include // for strlen(), strcmp() #include #include // for errno #include "base/commandlineflags.h" // On some systems (like freebsd), we can't call write() at all in a // global constructor, perhaps because errno hasn't been set up. // (In windows, we can't call it because it might call malloc.) // Calling the write syscall is safer (it doesn't set errno), so we // prefer that. Note we don't care about errno for logging: we just // do logging on a best-effort basis. #if defined(_MSC_VER) #define WRITE_TO_STDERR(buf, len) WriteToStderr(buf, len); // in port.cc #elif defined(HAVE_SYS_SYSCALL_H) #include #define WRITE_TO_STDERR(buf, len) syscall(SYS_write, STDERR_FILENO, buf, len) #else #define WRITE_TO_STDERR(buf, len) write(STDERR_FILENO, buf, len) #endif // MSVC and mingw define their own, safe version of vnsprintf (the // windows one in broken) in port.cc. Everyone else can use the // version here. We had to give it a unique name for windows. #ifndef _WIN32 # define perftools_vsnprintf vsnprintf #endif // We log all messages at this log-level and below. // INFO == -1, WARNING == -2, ERROR == -3, FATAL == -4 DECLARE_int32(verbose); // CHECK dies with a fatal error if condition is not true. It is *not* // controlled by NDEBUG, so the check will be executed regardless of // compilation mode. Therefore, it is safe to do things like: // CHECK(fp->Write(x) == 4) // Note we use write instead of printf/puts to avoid the risk we'll // call malloc(). #define CHECK(condition) \ do { \ if (!(condition)) { \ WRITE_TO_STDERR("Check failed: " #condition "\n", \ sizeof("Check failed: " #condition "\n")-1); \ abort(); \ } \ } while (0) // This takes a message to print. The name is historical. #define RAW_CHECK(condition, message) \ do { \ if (!(condition)) { \ WRITE_TO_STDERR("Check failed: " #condition ": " message "\n", \ sizeof("Check failed: " #condition ": " message "\n")-1);\ abort(); \ } \ } while (0) // This is like RAW_CHECK, but only in debug-mode #ifdef NDEBUG enum { DEBUG_MODE = 0 }; #define RAW_DCHECK(condition, message) #else enum { DEBUG_MODE = 1 }; #define RAW_DCHECK(condition, message) RAW_CHECK(condition, message) #endif // This prints errno as well. Note we use write instead of printf/puts to // avoid the risk we'll call malloc(). #define PCHECK(condition) \ do { \ if (!(condition)) { \ const int err_no = errno; \ WRITE_TO_STDERR("Check failed: " #condition ": ", \ sizeof("Check failed: " #condition ": ")-1); \ WRITE_TO_STDERR(strerror(err_no), strlen(strerror(err_no))); \ WRITE_TO_STDERR("\n", sizeof("\n")-1); \ abort(); \ } \ } while (0) // Helper macro for binary operators; prints the two values on error // Don't use this macro directly in your code, use CHECK_EQ et al below // WARNING: These don't compile correctly if one of the arguments is a pointer // and the other is NULL. To work around this, simply static_cast NULL to the // type of the desired pointer. // TODO(jandrews): Also print the values in case of failure. Requires some // sort of type-sensitive ToString() function. #define CHECK_OP(op, val1, val2) \ do { \ if (!((val1) op (val2))) { \ fprintf(stderr, "Check failed: %s %s %s\n", #val1, #op, #val2); \ abort(); \ } \ } while (0) #define CHECK_EQ(val1, val2) CHECK_OP(==, val1, val2) #define CHECK_NE(val1, val2) CHECK_OP(!=, val1, val2) #define CHECK_LE(val1, val2) CHECK_OP(<=, val1, val2) #define CHECK_LT(val1, val2) CHECK_OP(< , val1, val2) #define CHECK_GE(val1, val2) CHECK_OP(>=, val1, val2) #define CHECK_GT(val1, val2) CHECK_OP(> , val1, val2) // Synonyms for CHECK_* that are used in some unittests. #define EXPECT_EQ(val1, val2) CHECK_EQ(val1, val2) #define EXPECT_NE(val1, val2) CHECK_NE(val1, val2) #define EXPECT_LE(val1, val2) CHECK_LE(val1, val2) #define EXPECT_LT(val1, val2) CHECK_LT(val1, val2) #define EXPECT_GE(val1, val2) CHECK_GE(val1, val2) #define EXPECT_GT(val1, val2) CHECK_GT(val1, val2) #define ASSERT_EQ(val1, val2) EXPECT_EQ(val1, val2) #define ASSERT_NE(val1, val2) EXPECT_NE(val1, val2) #define ASSERT_LE(val1, val2) EXPECT_LE(val1, val2) #define ASSERT_LT(val1, val2) EXPECT_LT(val1, val2) #define ASSERT_GE(val1, val2) EXPECT_GE(val1, val2) #define ASSERT_GT(val1, val2) EXPECT_GT(val1, val2) // As are these variants. #define EXPECT_TRUE(cond) CHECK(cond) #define EXPECT_FALSE(cond) CHECK(!(cond)) #define EXPECT_STREQ(a, b) CHECK(strcmp(a, b) == 0) #define ASSERT_TRUE(cond) EXPECT_TRUE(cond) #define ASSERT_FALSE(cond) EXPECT_FALSE(cond) #define ASSERT_STREQ(a, b) EXPECT_STREQ(a, b) // Used for (libc) functions that return -1 and set errno #define CHECK_ERR(invocation) PCHECK((invocation) != -1) // A few more checks that only happen in debug mode #ifdef NDEBUG #define DCHECK_EQ(val1, val2) #define DCHECK_NE(val1, val2) #define DCHECK_LE(val1, val2) #define DCHECK_LT(val1, val2) #define DCHECK_GE(val1, val2) #define DCHECK_GT(val1, val2) #else #define DCHECK_EQ(val1, val2) CHECK_EQ(val1, val2) #define DCHECK_NE(val1, val2) CHECK_NE(val1, val2) #define DCHECK_LE(val1, val2) CHECK_LE(val1, val2) #define DCHECK_LT(val1, val2) CHECK_LT(val1, val2) #define DCHECK_GE(val1, val2) CHECK_GE(val1, val2) #define DCHECK_GT(val1, val2) CHECK_GT(val1, val2) #endif #ifdef ERROR #undef ERROR // may conflict with ERROR macro on windows #endif enum LogSeverity {INFO = -1, WARNING = -2, ERROR = -3, FATAL = -4}; // NOTE: we add a newline to the end of the output if it's not there already inline void LogPrintf(int severity, const char* pat, va_list ap) { // We write directly to the stderr file descriptor and avoid FILE // buffering because that may invoke malloc() char buf[600]; perftools_vsnprintf(buf, sizeof(buf)-1, pat, ap); if (buf[0] != '\0' && buf[strlen(buf)-1] != '\n') { assert(strlen(buf)+1 < sizeof(buf)); strcat(buf, "\n"); } WRITE_TO_STDERR(buf, strlen(buf)); if ((severity) == FATAL) abort(); // LOG(FATAL) indicates a big problem, so don't run atexit() calls } // Note that since the order of global constructors is unspecified, // global code that calls RAW_LOG may execute before FLAGS_verbose is set. // Such code will run with verbosity == 0 no matter what. #define VLOG_IS_ON(severity) (FLAGS_verbose >= severity) // In a better world, we'd use __VA_ARGS__, but VC++ 7 doesn't support it. #define LOG_PRINTF(severity, pat) do { \ if (VLOG_IS_ON(severity)) { \ va_list ap; \ va_start(ap, pat); \ LogPrintf(severity, pat, ap); \ va_end(ap); \ } \ } while (0) // RAW_LOG is the main function; some synonyms are used in unittests. inline void RAW_LOG(int lvl, const char* pat, ...) { LOG_PRINTF(lvl, pat); } inline void RAW_VLOG(int lvl, const char* pat, ...) { LOG_PRINTF(lvl, pat); } inline void LOG(int lvl, const char* pat, ...) { LOG_PRINTF(lvl, pat); } inline void VLOG(int lvl, const char* pat, ...) { LOG_PRINTF(lvl, pat); } inline void LOG_IF(int lvl, bool cond, const char* pat, ...) { if (cond) LOG_PRINTF(lvl, pat); } // This isn't technically logging, but it's also IO and also is an // attempt to be "raw" -- that is, to not use any higher-level libc // routines that might allocate memory or (ideally) try to allocate // locks. We use an opaque file handle (not necessarily an int) // to allow even more low-level stuff in the future. // Like other "raw" routines, these functions are best effort, and // thus don't return error codes (except RawOpenForWriting()). #if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) #ifndef NOMINMAX #define NOMINMAX // @#!$& windows #endif #include typedef HANDLE RawFD; const RawFD kIllegalRawFD = INVALID_HANDLE_VALUE; #else typedef int RawFD; const RawFD kIllegalRawFD = -1; // what open returns if it fails #endif // defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) RawFD RawOpenForWriting(const char* filename); // uses default permissions void RawWrite(RawFD fd, const char* buf, size_t len); void RawClose(RawFD fd); #endif // _LOGGING_H_ gperftools-2.4/src/base/commandlineflags.h0000644000000000000000000001535312440704174015621 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // This file is a compatibility layer that defines Google's version of // command line flags that are used for configuration. // // We put flags into their own namespace. It is purposefully // named in an opaque way that people should have trouble typing // directly. The idea is that DEFINE puts the flag in the weird // namespace, and DECLARE imports the flag from there into the // current namespace. The net result is to force people to use // DECLARE to get access to a flag, rather than saying // extern bool FLAGS_logtostderr; // or some such instead. We want this so we can put extra // functionality (like sanity-checking) in DECLARE if we want, // and make sure it is picked up everywhere. // // We also put the type of the variable in the namespace, so that // people can't DECLARE_int32 something that they DEFINE_bool'd // elsewhere. #ifndef BASE_COMMANDLINEFLAGS_H_ #define BASE_COMMANDLINEFLAGS_H_ #include #include #include // for memchr #include // for getenv #include "base/basictypes.h" #define DECLARE_VARIABLE(type, name) \ namespace FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead { \ extern PERFTOOLS_DLL_DECL type FLAGS_##name; \ } \ using FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead::FLAGS_##name #define DEFINE_VARIABLE(type, name, value, meaning) \ namespace FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead { \ PERFTOOLS_DLL_DECL type FLAGS_##name(value); \ char FLAGS_no##name; \ } \ using FLAG__namespace_do_not_use_directly_use_DECLARE_##type##_instead::FLAGS_##name // bool specialization #define DECLARE_bool(name) \ DECLARE_VARIABLE(bool, name) #define DEFINE_bool(name, value, meaning) \ DEFINE_VARIABLE(bool, name, value, meaning) // int32 specialization #define DECLARE_int32(name) \ DECLARE_VARIABLE(int32, name) #define DEFINE_int32(name, value, meaning) \ DEFINE_VARIABLE(int32, name, value, meaning) // int64 specialization #define DECLARE_int64(name) \ DECLARE_VARIABLE(int64, name) #define DEFINE_int64(name, value, meaning) \ DEFINE_VARIABLE(int64, name, value, meaning) #define DECLARE_uint64(name) \ DECLARE_VARIABLE(uint64, name) #define DEFINE_uint64(name, value, meaning) \ DEFINE_VARIABLE(uint64, name, value, meaning) // double specialization #define DECLARE_double(name) \ DECLARE_VARIABLE(double, name) #define DEFINE_double(name, value, meaning) \ DEFINE_VARIABLE(double, name, value, meaning) // Special case for string, because we have to specify the namespace // std::string, which doesn't play nicely with our FLAG__namespace hackery. #define DECLARE_string(name) \ namespace FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead { \ extern std::string FLAGS_##name; \ } \ using FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead::FLAGS_##name #define DEFINE_string(name, value, meaning) \ namespace FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead { \ std::string FLAGS_##name(value); \ char FLAGS_no##name; \ } \ using FLAG__namespace_do_not_use_directly_use_DECLARE_string_instead::FLAGS_##name // implemented in sysinfo.cc namespace tcmalloc { namespace commandlineflags { inline bool StringToBool(const char *value, bool def) { if (!value) { return def; } return memchr("tTyY1\0", value[0], 6) != NULL; } inline int StringToInt(const char *value, int def) { if (!value) { return def; } return strtol(value, NULL, 10); } inline long long StringToLongLong(const char *value, long long def) { if (!value) { return def; } return strtoll(value, NULL, 10); } inline double StringToDouble(const char *value, double def) { if (!value) { return def; } return strtod(value, NULL); } } } // These macros (could be functions, but I don't want to bother with a .cc // file), make it easier to initialize flags from the environment. #define EnvToString(envname, dflt) \ (!getenv(envname) ? (dflt) : getenv(envname)) #define EnvToBool(envname, dflt) \ tcmalloc::commandlineflags::StringToBool(getenv(envname), dflt) #define EnvToInt(envname, dflt) \ tcmalloc::commandlineflags::StringToInt(getenv(envname), dflt) #define EnvToInt64(envname, dflt) \ tcmalloc::commandlineflags::StringToLongLong(getenv(envname), dflt) #define EnvToDouble(envname, dflt) \ tcmalloc::commandlineflags::StringToDouble(getenv(envname), dflt) #endif // BASE_COMMANDLINEFLAGS_H_ gperftools-2.4/src/base/basictypes.h0000644000000000000000000003626612450132572014470 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #ifndef _BASICTYPES_H_ #define _BASICTYPES_H_ #include #include // for memcpy() #ifdef HAVE_INTTYPES_H #include // gets us PRId64, etc #endif // To use this in an autoconf setting, make sure you run the following // autoconf macros: // AC_HEADER_STDC /* for stdint_h and inttypes_h */ // AC_CHECK_TYPES([__int64]) /* defined in some windows platforms */ #ifdef HAVE_INTTYPES_H #include // uint16_t might be here; PRId64 too. #endif #ifdef HAVE_STDINT_H #include // to get uint16_t (ISO naming madness) #endif #include // our last best hope for uint16_t // Standard typedefs // All Google code is compiled with -funsigned-char to make "char" // unsigned. Google code therefore doesn't need a "uchar" type. // TODO(csilvers): how do we make sure unsigned-char works on non-gcc systems? typedef signed char schar; typedef int8_t int8; typedef int16_t int16; typedef int32_t int32; typedef int64_t int64; // NOTE: unsigned types are DANGEROUS in loops and other arithmetical // places. Use the signed types unless your variable represents a bit // pattern (eg a hash value) or you really need the extra bit. Do NOT // use 'unsigned' to express "this value should always be positive"; // use assertions for this. typedef uint8_t uint8; typedef uint16_t uint16; typedef uint32_t uint32; typedef uint64_t uint64; const uint16 kuint16max = ( (uint16) 0xFFFF); const uint32 kuint32max = ( (uint32) 0xFFFFFFFF); const uint64 kuint64max = ( (((uint64) kuint32max) << 32) | kuint32max ); const int8 kint8max = ( ( int8) 0x7F); const int16 kint16max = ( ( int16) 0x7FFF); const int32 kint32max = ( ( int32) 0x7FFFFFFF); const int64 kint64max = ( ((( int64) kint32max) << 32) | kuint32max ); const int8 kint8min = ( ( int8) 0x80); const int16 kint16min = ( ( int16) 0x8000); const int32 kint32min = ( ( int32) 0x80000000); const int64 kint64min = ( ((( int64) kint32min) << 32) | 0 ); // Define the "portable" printf and scanf macros, if they're not // already there (via the inttypes.h we #included above, hopefully). // Mostly it's old systems that don't support inttypes.h, so we assume // they're 32 bit. #ifndef PRIx64 #define PRIx64 "llx" #endif #ifndef SCNx64 #define SCNx64 "llx" #endif #ifndef PRId64 #define PRId64 "lld" #endif #ifndef SCNd64 #define SCNd64 "lld" #endif #ifndef PRIu64 #define PRIu64 "llu" #endif #ifndef PRIxPTR #define PRIxPTR "lx" #endif // Also allow for printing of a pthread_t. #define GPRIuPTHREAD "lu" #define GPRIxPTHREAD "lx" #if defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__APPLE__) || defined(__FreeBSD__) #define PRINTABLE_PTHREAD(pthreadt) reinterpret_cast(pthreadt) #else #define PRINTABLE_PTHREAD(pthreadt) pthreadt #endif // A macro to disallow the evil copy constructor and operator= functions // This should be used in the private: declarations for a class #define DISALLOW_EVIL_CONSTRUCTORS(TypeName) \ TypeName(const TypeName&); \ void operator=(const TypeName&) // An alternate name that leaves out the moral judgment... :-) #define DISALLOW_COPY_AND_ASSIGN(TypeName) DISALLOW_EVIL_CONSTRUCTORS(TypeName) // The COMPILE_ASSERT macro can be used to verify that a compile time // expression is true. For example, you could use it to verify the // size of a static array: // // COMPILE_ASSERT(sizeof(num_content_type_names) == sizeof(int), // content_type_names_incorrect_size); // // or to make sure a struct is smaller than a certain size: // // COMPILE_ASSERT(sizeof(foo) < 128, foo_too_large); // // The second argument to the macro is the name of the variable. If // the expression is false, most compilers will issue a warning/error // containing the name of the variable. // // Implementation details of COMPILE_ASSERT: // // - COMPILE_ASSERT works by defining an array type that has -1 // elements (and thus is invalid) when the expression is false. // // - The simpler definition // // #define COMPILE_ASSERT(expr, msg) typedef char msg[(expr) ? 1 : -1] // // does not work, as gcc supports variable-length arrays whose sizes // are determined at run-time (this is gcc's extension and not part // of the C++ standard). As a result, gcc fails to reject the // following code with the simple definition: // // int foo; // COMPILE_ASSERT(foo, msg); // not supposed to compile as foo is // // not a compile-time constant. // // - By using the type CompileAssert<(bool(expr))>, we ensures that // expr is a compile-time constant. (Template arguments must be // determined at compile-time.) // // - The outter parentheses in CompileAssert<(bool(expr))> are necessary // to work around a bug in gcc 3.4.4 and 4.0.1. If we had written // // CompileAssert // // instead, these compilers will refuse to compile // // COMPILE_ASSERT(5 > 0, some_message); // // (They seem to think the ">" in "5 > 0" marks the end of the // template argument list.) // // - The array size is (bool(expr) ? 1 : -1), instead of simply // // ((expr) ? 1 : -1). // // This is to avoid running into a bug in MS VC 7.1, which // causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1. template struct CompileAssert { }; #ifdef HAVE___ATTRIBUTE__ # define ATTRIBUTE_UNUSED __attribute__((unused)) #else # define ATTRIBUTE_UNUSED #endif #define COMPILE_ASSERT(expr, msg) \ typedef CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1] ATTRIBUTE_UNUSED #define arraysize(a) (sizeof(a) / sizeof(*(a))) #define OFFSETOF_MEMBER(strct, field) \ (reinterpret_cast(&reinterpret_cast(16)->field) - \ reinterpret_cast(16)) // bit_cast implements the equivalent of // "*reinterpret_cast(&source)". // // The reinterpret_cast method would produce undefined behavior // according to ISO C++ specification section 3.10 -15 -. // bit_cast<> calls memcpy() which is blessed by the standard, // especially by the example in section 3.9. // // Fortunately memcpy() is very fast. In optimized mode, with a // constant size, gcc 2.95.3, gcc 4.0.1, and msvc 7.1 produce inline // code with the minimal amount of data movement. On a 32-bit system, // memcpy(d,s,4) compiles to one load and one store, and memcpy(d,s,8) // compiles to two loads and two stores. template inline Dest bit_cast(const Source& source) { COMPILE_ASSERT(sizeof(Dest) == sizeof(Source), bitcasting_unequal_sizes); Dest dest; memcpy(&dest, &source, sizeof(dest)); return dest; } #ifdef HAVE___ATTRIBUTE__ # define ATTRIBUTE_WEAK __attribute__((weak)) # define ATTRIBUTE_NOINLINE __attribute__((noinline)) #else # define ATTRIBUTE_WEAK # define ATTRIBUTE_NOINLINE #endif #if defined(HAVE___ATTRIBUTE__) && defined(__ELF__) # define ATTRIBUTE_VISIBILITY_HIDDEN __attribute__((visibility("hidden"))) #else # define ATTRIBUTE_VISIBILITY_HIDDEN #endif // Section attributes are supported for both ELF and Mach-O, but in // very different ways. Here's the API we provide: // 1) ATTRIBUTE_SECTION: put this with the declaration of all functions // you want to be in the same linker section // 2) DEFINE_ATTRIBUTE_SECTION_VARS: must be called once per unique // name. You want to make sure this is executed before any // DECLARE_ATTRIBUTE_SECTION_VARS; the easiest way is to put them // in the same .cc file. Put this call at the global level. // 3) INIT_ATTRIBUTE_SECTION_VARS: you can scatter calls to this in // multiple places to help ensure execution before any // DECLARE_ATTRIBUTE_SECTION_VARS. You must have at least one // DEFINE, but you can have many INITs. Put each in its own scope. // 4) DECLARE_ATTRIBUTE_SECTION_VARS: must be called before using // ATTRIBUTE_SECTION_START or ATTRIBUTE_SECTION_STOP on a name. // Put this call at the global level. // 5) ATTRIBUTE_SECTION_START/ATTRIBUTE_SECTION_STOP: call this to say // where in memory a given section is. All functions declared with // ATTRIBUTE_SECTION are guaranteed to be between START and STOP. #if defined(HAVE___ATTRIBUTE__) && defined(__ELF__) # define ATTRIBUTE_SECTION(name) __attribute__ ((section (#name))) // Weak section declaration to be used as a global declaration // for ATTRIBUTE_SECTION_START|STOP(name) to compile and link // even without functions with ATTRIBUTE_SECTION(name). # define DECLARE_ATTRIBUTE_SECTION_VARS(name) \ extern char __start_##name[] ATTRIBUTE_WEAK; \ extern char __stop_##name[] ATTRIBUTE_WEAK # define INIT_ATTRIBUTE_SECTION_VARS(name) // no-op for ELF # define DEFINE_ATTRIBUTE_SECTION_VARS(name) // no-op for ELF // Return void* pointers to start/end of a section of code with functions // having ATTRIBUTE_SECTION(name), or 0 if no such function exists. // One must DECLARE_ATTRIBUTE_SECTION(name) for this to compile and link. # define ATTRIBUTE_SECTION_START(name) (reinterpret_cast(__start_##name)) # define ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast(__stop_##name)) # define HAVE_ATTRIBUTE_SECTION_START 1 #elif defined(HAVE___ATTRIBUTE__) && defined(__MACH__) # define ATTRIBUTE_SECTION(name) __attribute__ ((section ("__TEXT, " #name))) #include #include class AssignAttributeStartEnd { public: AssignAttributeStartEnd(const char* name, char** pstart, char** pend) { // Find out what dynamic library name is defined in if (_dyld_present()) { for (int i = _dyld_image_count() - 1; i >= 0; --i) { const mach_header* hdr = _dyld_get_image_header(i); #ifdef MH_MAGIC_64 if (hdr->magic == MH_MAGIC_64) { uint64_t len; *pstart = getsectdatafromheader_64((mach_header_64*)hdr, "__TEXT", name, &len); if (*pstart) { // NULL if not defined in this dynamic library *pstart += _dyld_get_image_vmaddr_slide(i); // correct for reloc *pend = *pstart + len; return; } } #endif if (hdr->magic == MH_MAGIC) { uint32_t len; *pstart = getsectdatafromheader(hdr, "__TEXT", name, &len); if (*pstart) { // NULL if not defined in this dynamic library *pstart += _dyld_get_image_vmaddr_slide(i); // correct for reloc *pend = *pstart + len; return; } } } } // If we get here, not defined in a dll at all. See if defined statically. unsigned long len; // don't ask me why this type isn't uint32_t too... *pstart = getsectdata("__TEXT", name, &len); *pend = *pstart + len; } }; #define DECLARE_ATTRIBUTE_SECTION_VARS(name) \ extern char* __start_##name; \ extern char* __stop_##name #define INIT_ATTRIBUTE_SECTION_VARS(name) \ DECLARE_ATTRIBUTE_SECTION_VARS(name); \ static const AssignAttributeStartEnd __assign_##name( \ #name, &__start_##name, &__stop_##name) #define DEFINE_ATTRIBUTE_SECTION_VARS(name) \ char* __start_##name, *__stop_##name; \ INIT_ATTRIBUTE_SECTION_VARS(name) # define ATTRIBUTE_SECTION_START(name) (reinterpret_cast(__start_##name)) # define ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast(__stop_##name)) # define HAVE_ATTRIBUTE_SECTION_START 1 #else // not HAVE___ATTRIBUTE__ && __ELF__, nor HAVE___ATTRIBUTE__ && __MACH__ # define ATTRIBUTE_SECTION(name) # define DECLARE_ATTRIBUTE_SECTION_VARS(name) # define INIT_ATTRIBUTE_SECTION_VARS(name) # define DEFINE_ATTRIBUTE_SECTION_VARS(name) # define ATTRIBUTE_SECTION_START(name) (reinterpret_cast(0)) # define ATTRIBUTE_SECTION_STOP(name) (reinterpret_cast(0)) #endif // HAVE___ATTRIBUTE__ and __ELF__ or __MACH__ #if defined(HAVE___ATTRIBUTE__) # if (defined(__i386__) || defined(__x86_64__)) # define CACHELINE_ALIGNED __attribute__((aligned(64))) # elif (defined(__PPC__) || defined(__PPC64__)) # define CACHELINE_ALIGNED __attribute__((aligned(16))) # elif (defined(__arm__)) # define CACHELINE_ALIGNED __attribute__((aligned(64))) // some ARMs have shorter cache lines (ARM1176JZF-S is 32 bytes for example) but obviously 64-byte aligned implies 32-byte aligned # elif (defined(__mips__)) # define CACHELINE_ALIGNED __attribute__((aligned(128))) # elif (defined(__aarch64__)) # define CACHELINE_ALIGNED __attribute__((aligned(64))) // implementation specific, Cortex-A53 and 57 should have 64 bytes # else # error Could not determine cache line length - unknown architecture # endif #else # define CACHELINE_ALIGNED #endif // defined(HAVE___ATTRIBUTE__) && (__i386__ || __x86_64__) // The following enum should be used only as a constructor argument to indicate // that the variable has static storage class, and that the constructor should // do nothing to its state. It indicates to the reader that it is legal to // declare a static nistance of the class, provided the constructor is given // the base::LINKER_INITIALIZED argument. Normally, it is unsafe to declare a // static variable that has a constructor or a destructor because invocation // order is undefined. However, IF the type can be initialized by filling with // zeroes (which the loader does for static variables), AND the destructor also // does nothing to the storage, then a constructor declared as // explicit MyClass(base::LinkerInitialized x) {} // and invoked as // static MyClass my_variable_name(base::LINKER_INITIALIZED); namespace base { enum LinkerInitialized { LINKER_INITIALIZED }; } #endif // _BASICTYPES_H_ gperftools-2.4/src/base/dynamic_annotations.h0000644000000000000000000006545712372001603016360 00000000000000/* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Kostya Serebryany */ /* This file defines dynamic annotations for use with dynamic analysis tool such as valgrind, PIN, etc. Dynamic annotation is a source code annotation that affects the generated code (that is, the annotation is not a comment). Each such annotation is attached to a particular instruction and/or to a particular object (address) in the program. The annotations that should be used by users are macros in all upper-case (e.g., ANNOTATE_NEW_MEMORY). Actual implementation of these macros may differ depending on the dynamic analysis tool being used. See http://code.google.com/p/data-race-test/ for more information. This file supports the following dynamic analysis tools: - None (DYNAMIC_ANNOTATIONS_ENABLED is not defined or zero). Macros are defined empty. - ThreadSanitizer, Helgrind, DRD (DYNAMIC_ANNOTATIONS_ENABLED is 1). Macros are defined as calls to non-inlinable empty functions that are intercepted by Valgrind. */ #ifndef BASE_DYNAMIC_ANNOTATIONS_H_ #define BASE_DYNAMIC_ANNOTATIONS_H_ #ifndef DYNAMIC_ANNOTATIONS_ENABLED # define DYNAMIC_ANNOTATIONS_ENABLED 0 #endif #if DYNAMIC_ANNOTATIONS_ENABLED != 0 /* ------------------------------------------------------------- Annotations useful when implementing condition variables such as CondVar, using conditional critical sections (Await/LockWhen) and when constructing user-defined synchronization mechanisms. The annotations ANNOTATE_HAPPENS_BEFORE() and ANNOTATE_HAPPENS_AFTER() can be used to define happens-before arcs in user-defined synchronization mechanisms: the race detector will infer an arc from the former to the latter when they share the same argument pointer. Example 1 (reference counting): void Unref() { ANNOTATE_HAPPENS_BEFORE(&refcount_); if (AtomicDecrementByOne(&refcount_) == 0) { ANNOTATE_HAPPENS_AFTER(&refcount_); delete this; } } Example 2 (message queue): void MyQueue::Put(Type *e) { MutexLock lock(&mu_); ANNOTATE_HAPPENS_BEFORE(e); PutElementIntoMyQueue(e); } Type *MyQueue::Get() { MutexLock lock(&mu_); Type *e = GetElementFromMyQueue(); ANNOTATE_HAPPENS_AFTER(e); return e; } Note: when possible, please use the existing reference counting and message queue implementations instead of inventing new ones. */ /* Report that wait on the condition variable at address "cv" has succeeded and the lock at address "lock" is held. */ #define ANNOTATE_CONDVAR_LOCK_WAIT(cv, lock) \ AnnotateCondVarWait(__FILE__, __LINE__, cv, lock) /* Report that wait on the condition variable at "cv" has succeeded. Variant w/o lock. */ #define ANNOTATE_CONDVAR_WAIT(cv) \ AnnotateCondVarWait(__FILE__, __LINE__, cv, NULL) /* Report that we are about to signal on the condition variable at address "cv". */ #define ANNOTATE_CONDVAR_SIGNAL(cv) \ AnnotateCondVarSignal(__FILE__, __LINE__, cv) /* Report that we are about to signal_all on the condition variable at "cv". */ #define ANNOTATE_CONDVAR_SIGNAL_ALL(cv) \ AnnotateCondVarSignalAll(__FILE__, __LINE__, cv) /* Annotations for user-defined synchronization mechanisms. */ #define ANNOTATE_HAPPENS_BEFORE(obj) ANNOTATE_CONDVAR_SIGNAL(obj) #define ANNOTATE_HAPPENS_AFTER(obj) ANNOTATE_CONDVAR_WAIT(obj) /* Report that the bytes in the range [pointer, pointer+size) are about to be published safely. The race checker will create a happens-before arc from the call ANNOTATE_PUBLISH_MEMORY_RANGE(pointer, size) to subsequent accesses to this memory. Note: this annotation may not work properly if the race detector uses sampling, i.e. does not observe all memory accesses. */ #define ANNOTATE_PUBLISH_MEMORY_RANGE(pointer, size) \ AnnotatePublishMemoryRange(__FILE__, __LINE__, pointer, size) /* DEPRECATED. Don't use it. */ #define ANNOTATE_UNPUBLISH_MEMORY_RANGE(pointer, size) \ AnnotateUnpublishMemoryRange(__FILE__, __LINE__, pointer, size) /* DEPRECATED. Don't use it. */ #define ANNOTATE_SWAP_MEMORY_RANGE(pointer, size) \ do { \ ANNOTATE_UNPUBLISH_MEMORY_RANGE(pointer, size); \ ANNOTATE_PUBLISH_MEMORY_RANGE(pointer, size); \ } while (0) /* Instruct the tool to create a happens-before arc between mu->Unlock() and mu->Lock(). This annotation may slow down the race detector and hide real races. Normally it is used only when it would be difficult to annotate each of the mutex's critical sections individually using the annotations above. This annotation makes sense only for hybrid race detectors. For pure happens-before detectors this is a no-op. For more details see http://code.google.com/p/data-race-test/wiki/PureHappensBeforeVsHybrid . */ #define ANNOTATE_PURE_HAPPENS_BEFORE_MUTEX(mu) \ AnnotateMutexIsUsedAsCondVar(__FILE__, __LINE__, mu) /* Deprecated. Use ANNOTATE_PURE_HAPPENS_BEFORE_MUTEX. */ #define ANNOTATE_MUTEX_IS_USED_AS_CONDVAR(mu) \ AnnotateMutexIsUsedAsCondVar(__FILE__, __LINE__, mu) /* ------------------------------------------------------------- Annotations useful when defining memory allocators, or when memory that was protected in one way starts to be protected in another. */ /* Report that a new memory at "address" of size "size" has been allocated. This might be used when the memory has been retrieved from a free list and is about to be reused, or when a the locking discipline for a variable changes. */ #define ANNOTATE_NEW_MEMORY(address, size) \ AnnotateNewMemory(__FILE__, __LINE__, address, size) /* ------------------------------------------------------------- Annotations useful when defining FIFO queues that transfer data between threads. */ /* Report that the producer-consumer queue (such as ProducerConsumerQueue) at address "pcq" has been created. The ANNOTATE_PCQ_* annotations should be used only for FIFO queues. For non-FIFO queues use ANNOTATE_HAPPENS_BEFORE (for put) and ANNOTATE_HAPPENS_AFTER (for get). */ #define ANNOTATE_PCQ_CREATE(pcq) \ AnnotatePCQCreate(__FILE__, __LINE__, pcq) /* Report that the queue at address "pcq" is about to be destroyed. */ #define ANNOTATE_PCQ_DESTROY(pcq) \ AnnotatePCQDestroy(__FILE__, __LINE__, pcq) /* Report that we are about to put an element into a FIFO queue at address "pcq". */ #define ANNOTATE_PCQ_PUT(pcq) \ AnnotatePCQPut(__FILE__, __LINE__, pcq) /* Report that we've just got an element from a FIFO queue at address "pcq". */ #define ANNOTATE_PCQ_GET(pcq) \ AnnotatePCQGet(__FILE__, __LINE__, pcq) /* ------------------------------------------------------------- Annotations that suppress errors. It is usually better to express the program's synchronization using the other annotations, but these can be used when all else fails. */ /* Report that we may have a benign race at "pointer", with size "sizeof(*(pointer))". "pointer" must be a non-void* pointer. Insert at the point where "pointer" has been allocated, preferably close to the point where the race happens. See also ANNOTATE_BENIGN_RACE_STATIC. */ #define ANNOTATE_BENIGN_RACE(pointer, description) \ AnnotateBenignRaceSized(__FILE__, __LINE__, pointer, \ sizeof(*(pointer)), description) /* Same as ANNOTATE_BENIGN_RACE(address, description), but applies to the memory range [address, address+size). */ #define ANNOTATE_BENIGN_RACE_SIZED(address, size, description) \ AnnotateBenignRaceSized(__FILE__, __LINE__, address, size, description) /* Request the analysis tool to ignore all reads in the current thread until ANNOTATE_IGNORE_READS_END is called. Useful to ignore intentional racey reads, while still checking other reads and all writes. See also ANNOTATE_UNPROTECTED_READ. */ #define ANNOTATE_IGNORE_READS_BEGIN() \ AnnotateIgnoreReadsBegin(__FILE__, __LINE__) /* Stop ignoring reads. */ #define ANNOTATE_IGNORE_READS_END() \ AnnotateIgnoreReadsEnd(__FILE__, __LINE__) /* Similar to ANNOTATE_IGNORE_READS_BEGIN, but ignore writes. */ #define ANNOTATE_IGNORE_WRITES_BEGIN() \ AnnotateIgnoreWritesBegin(__FILE__, __LINE__) /* Stop ignoring writes. */ #define ANNOTATE_IGNORE_WRITES_END() \ AnnotateIgnoreWritesEnd(__FILE__, __LINE__) /* Start ignoring all memory accesses (reads and writes). */ #define ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() \ do {\ ANNOTATE_IGNORE_READS_BEGIN();\ ANNOTATE_IGNORE_WRITES_BEGIN();\ }while(0)\ /* Stop ignoring all memory accesses. */ #define ANNOTATE_IGNORE_READS_AND_WRITES_END() \ do {\ ANNOTATE_IGNORE_WRITES_END();\ ANNOTATE_IGNORE_READS_END();\ }while(0)\ /* Enable (enable!=0) or disable (enable==0) race detection for all threads. This annotation could be useful if you want to skip expensive race analysis during some period of program execution, e.g. during initialization. */ #define ANNOTATE_ENABLE_RACE_DETECTION(enable) \ AnnotateEnableRaceDetection(__FILE__, __LINE__, enable) /* ------------------------------------------------------------- Annotations useful for debugging. */ /* Request to trace every access to "address". */ #define ANNOTATE_TRACE_MEMORY(address) \ AnnotateTraceMemory(__FILE__, __LINE__, address) /* Report the current thread name to a race detector. */ #define ANNOTATE_THREAD_NAME(name) \ AnnotateThreadName(__FILE__, __LINE__, name) /* ------------------------------------------------------------- Annotations useful when implementing locks. They are not normally needed by modules that merely use locks. The "lock" argument is a pointer to the lock object. */ /* Report that a lock has been created at address "lock". */ #define ANNOTATE_RWLOCK_CREATE(lock) \ AnnotateRWLockCreate(__FILE__, __LINE__, lock) /* Report that the lock at address "lock" is about to be destroyed. */ #define ANNOTATE_RWLOCK_DESTROY(lock) \ AnnotateRWLockDestroy(__FILE__, __LINE__, lock) /* Report that the lock at address "lock" has been acquired. is_w=1 for writer lock, is_w=0 for reader lock. */ #define ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) \ AnnotateRWLockAcquired(__FILE__, __LINE__, lock, is_w) /* Report that the lock at address "lock" is about to be released. */ #define ANNOTATE_RWLOCK_RELEASED(lock, is_w) \ AnnotateRWLockReleased(__FILE__, __LINE__, lock, is_w) /* ------------------------------------------------------------- Annotations useful when implementing barriers. They are not normally needed by modules that merely use barriers. The "barrier" argument is a pointer to the barrier object. */ /* Report that the "barrier" has been initialized with initial "count". If 'reinitialization_allowed' is true, initialization is allowed to happen multiple times w/o calling barrier_destroy() */ #define ANNOTATE_BARRIER_INIT(barrier, count, reinitialization_allowed) \ AnnotateBarrierInit(__FILE__, __LINE__, barrier, count, \ reinitialization_allowed) /* Report that we are about to enter barrier_wait("barrier"). */ #define ANNOTATE_BARRIER_WAIT_BEFORE(barrier) \ AnnotateBarrierWaitBefore(__FILE__, __LINE__, barrier) /* Report that we just exited barrier_wait("barrier"). */ #define ANNOTATE_BARRIER_WAIT_AFTER(barrier) \ AnnotateBarrierWaitAfter(__FILE__, __LINE__, barrier) /* Report that the "barrier" has been destroyed. */ #define ANNOTATE_BARRIER_DESTROY(barrier) \ AnnotateBarrierDestroy(__FILE__, __LINE__, barrier) /* ------------------------------------------------------------- Annotations useful for testing race detectors. */ /* Report that we expect a race on the variable at "address". Use only in unit tests for a race detector. */ #define ANNOTATE_EXPECT_RACE(address, description) \ AnnotateExpectRace(__FILE__, __LINE__, address, description) /* A no-op. Insert where you like to test the interceptors. */ #define ANNOTATE_NO_OP(arg) \ AnnotateNoOp(__FILE__, __LINE__, arg) /* Force the race detector to flush its state. The actual effect depends on * the implementation of the detector. */ #define ANNOTATE_FLUSH_STATE() \ AnnotateFlushState(__FILE__, __LINE__) #else /* DYNAMIC_ANNOTATIONS_ENABLED == 0 */ #define ANNOTATE_RWLOCK_CREATE(lock) /* empty */ #define ANNOTATE_RWLOCK_DESTROY(lock) /* empty */ #define ANNOTATE_RWLOCK_ACQUIRED(lock, is_w) /* empty */ #define ANNOTATE_RWLOCK_RELEASED(lock, is_w) /* empty */ #define ANNOTATE_BARRIER_INIT(barrier, count, reinitialization_allowed) /* */ #define ANNOTATE_BARRIER_WAIT_BEFORE(barrier) /* empty */ #define ANNOTATE_BARRIER_WAIT_AFTER(barrier) /* empty */ #define ANNOTATE_BARRIER_DESTROY(barrier) /* empty */ #define ANNOTATE_CONDVAR_LOCK_WAIT(cv, lock) /* empty */ #define ANNOTATE_CONDVAR_WAIT(cv) /* empty */ #define ANNOTATE_CONDVAR_SIGNAL(cv) /* empty */ #define ANNOTATE_CONDVAR_SIGNAL_ALL(cv) /* empty */ #define ANNOTATE_HAPPENS_BEFORE(obj) /* empty */ #define ANNOTATE_HAPPENS_AFTER(obj) /* empty */ #define ANNOTATE_PUBLISH_MEMORY_RANGE(address, size) /* empty */ #define ANNOTATE_UNPUBLISH_MEMORY_RANGE(address, size) /* empty */ #define ANNOTATE_SWAP_MEMORY_RANGE(address, size) /* empty */ #define ANNOTATE_PCQ_CREATE(pcq) /* empty */ #define ANNOTATE_PCQ_DESTROY(pcq) /* empty */ #define ANNOTATE_PCQ_PUT(pcq) /* empty */ #define ANNOTATE_PCQ_GET(pcq) /* empty */ #define ANNOTATE_NEW_MEMORY(address, size) /* empty */ #define ANNOTATE_EXPECT_RACE(address, description) /* empty */ #define ANNOTATE_BENIGN_RACE(address, description) /* empty */ #define ANNOTATE_BENIGN_RACE_SIZED(address, size, description) /* empty */ #define ANNOTATE_PURE_HAPPENS_BEFORE_MUTEX(mu) /* empty */ #define ANNOTATE_MUTEX_IS_USED_AS_CONDVAR(mu) /* empty */ #define ANNOTATE_TRACE_MEMORY(arg) /* empty */ #define ANNOTATE_THREAD_NAME(name) /* empty */ #define ANNOTATE_IGNORE_READS_BEGIN() /* empty */ #define ANNOTATE_IGNORE_READS_END() /* empty */ #define ANNOTATE_IGNORE_WRITES_BEGIN() /* empty */ #define ANNOTATE_IGNORE_WRITES_END() /* empty */ #define ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() /* empty */ #define ANNOTATE_IGNORE_READS_AND_WRITES_END() /* empty */ #define ANNOTATE_ENABLE_RACE_DETECTION(enable) /* empty */ #define ANNOTATE_NO_OP(arg) /* empty */ #define ANNOTATE_FLUSH_STATE() /* empty */ #endif /* DYNAMIC_ANNOTATIONS_ENABLED */ /* Macro definitions for GCC attributes that allow static thread safety analysis to recognize and use some of the dynamic annotations as escape hatches. TODO(lcwu): remove the check for __SUPPORT_DYN_ANNOTATION__ once the default crosstool/GCC supports these GCC attributes. */ #define ANNOTALYSIS_STATIC_INLINE #define ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY ; #define ANNOTALYSIS_IGNORE_READS_BEGIN #define ANNOTALYSIS_IGNORE_READS_END #define ANNOTALYSIS_IGNORE_WRITES_BEGIN #define ANNOTALYSIS_IGNORE_WRITES_END #define ANNOTALYSIS_UNPROTECTED_READ #if defined(__GNUC__) && (!defined(SWIG)) && (!defined(__clang__)) && \ defined(__SUPPORT_TS_ANNOTATION__) && defined(__SUPPORT_DYN_ANNOTATION__) #if DYNAMIC_ANNOTATIONS_ENABLED == 0 #define ANNOTALYSIS_ONLY 1 #undef ANNOTALYSIS_STATIC_INLINE #define ANNOTALYSIS_STATIC_INLINE static inline #undef ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY #define ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY { (void)file; (void)line; } #endif /* Only emit attributes when annotalysis is enabled. */ #if defined(__SUPPORT_TS_ANNOTATION__) && defined(__SUPPORT_DYN_ANNOTATION__) #undef ANNOTALYSIS_IGNORE_READS_BEGIN #define ANNOTALYSIS_IGNORE_READS_BEGIN __attribute__ ((ignore_reads_begin)) #undef ANNOTALYSIS_IGNORE_READS_END #define ANNOTALYSIS_IGNORE_READS_END __attribute__ ((ignore_reads_end)) #undef ANNOTALYSIS_IGNORE_WRITES_BEGIN #define ANNOTALYSIS_IGNORE_WRITES_BEGIN __attribute__ ((ignore_writes_begin)) #undef ANNOTALYSIS_IGNORE_WRITES_END #define ANNOTALYSIS_IGNORE_WRITES_END __attribute__ ((ignore_writes_end)) #undef ANNOTALYSIS_UNPROTECTED_READ #define ANNOTALYSIS_UNPROTECTED_READ __attribute__ ((unprotected_read)) #endif #endif // defined(__GNUC__) && (!defined(SWIG)) && (!defined(__clang__)) /* Use the macros above rather than using these functions directly. */ #ifdef __cplusplus extern "C" { #endif void AnnotateRWLockCreate(const char *file, int line, const volatile void *lock); void AnnotateRWLockDestroy(const char *file, int line, const volatile void *lock); void AnnotateRWLockAcquired(const char *file, int line, const volatile void *lock, long is_w); void AnnotateRWLockReleased(const char *file, int line, const volatile void *lock, long is_w); void AnnotateBarrierInit(const char *file, int line, const volatile void *barrier, long count, long reinitialization_allowed); void AnnotateBarrierWaitBefore(const char *file, int line, const volatile void *barrier); void AnnotateBarrierWaitAfter(const char *file, int line, const volatile void *barrier); void AnnotateBarrierDestroy(const char *file, int line, const volatile void *barrier); void AnnotateCondVarWait(const char *file, int line, const volatile void *cv, const volatile void *lock); void AnnotateCondVarSignal(const char *file, int line, const volatile void *cv); void AnnotateCondVarSignalAll(const char *file, int line, const volatile void *cv); void AnnotatePublishMemoryRange(const char *file, int line, const volatile void *address, long size); void AnnotateUnpublishMemoryRange(const char *file, int line, const volatile void *address, long size); void AnnotatePCQCreate(const char *file, int line, const volatile void *pcq); void AnnotatePCQDestroy(const char *file, int line, const volatile void *pcq); void AnnotatePCQPut(const char *file, int line, const volatile void *pcq); void AnnotatePCQGet(const char *file, int line, const volatile void *pcq); void AnnotateNewMemory(const char *file, int line, const volatile void *address, long size); void AnnotateExpectRace(const char *file, int line, const volatile void *address, const char *description); void AnnotateBenignRace(const char *file, int line, const volatile void *address, const char *description); void AnnotateBenignRaceSized(const char *file, int line, const volatile void *address, long size, const char *description); void AnnotateMutexIsUsedAsCondVar(const char *file, int line, const volatile void *mu); void AnnotateTraceMemory(const char *file, int line, const volatile void *arg); void AnnotateThreadName(const char *file, int line, const char *name); ANNOTALYSIS_STATIC_INLINE void AnnotateIgnoreReadsBegin(const char *file, int line) ANNOTALYSIS_IGNORE_READS_BEGIN ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY ANNOTALYSIS_STATIC_INLINE void AnnotateIgnoreReadsEnd(const char *file, int line) ANNOTALYSIS_IGNORE_READS_END ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY ANNOTALYSIS_STATIC_INLINE void AnnotateIgnoreWritesBegin(const char *file, int line) ANNOTALYSIS_IGNORE_WRITES_BEGIN ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY ANNOTALYSIS_STATIC_INLINE void AnnotateIgnoreWritesEnd(const char *file, int line) ANNOTALYSIS_IGNORE_WRITES_END ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY void AnnotateEnableRaceDetection(const char *file, int line, int enable); void AnnotateNoOp(const char *file, int line, const volatile void *arg); void AnnotateFlushState(const char *file, int line); /* Return non-zero value if running under valgrind. If "valgrind.h" is included into dynamic_annotations.c, the regular valgrind mechanism will be used. See http://valgrind.org/docs/manual/manual-core-adv.html about RUNNING_ON_VALGRIND and other valgrind "client requests". The file "valgrind.h" may be obtained by doing svn co svn://svn.valgrind.org/valgrind/trunk/include If for some reason you can't use "valgrind.h" or want to fake valgrind, there are two ways to make this function return non-zero: - Use environment variable: export RUNNING_ON_VALGRIND=1 - Make your tool intercept the function RunningOnValgrind() and change its return value. */ int RunningOnValgrind(void); /* ValgrindSlowdown returns: * 1.0, if (RunningOnValgrind() == 0) * 50.0, if (RunningOnValgrind() != 0 && getenv("VALGRIND_SLOWDOWN") == NULL) * atof(getenv("VALGRIND_SLOWDOWN")) otherwise This function can be used to scale timeout values: EXAMPLE: for (;;) { DoExpensiveBackgroundTask(); SleepForSeconds(5 * ValgrindSlowdown()); } */ double ValgrindSlowdown(void); #ifdef __cplusplus } #endif #if DYNAMIC_ANNOTATIONS_ENABLED != 0 && defined(__cplusplus) /* ANNOTATE_UNPROTECTED_READ is the preferred way to annotate racey reads. Instead of doing ANNOTATE_IGNORE_READS_BEGIN(); ... = x; ANNOTATE_IGNORE_READS_END(); one can use ... = ANNOTATE_UNPROTECTED_READ(x); */ template inline T ANNOTATE_UNPROTECTED_READ(const volatile T &x) ANNOTALYSIS_UNPROTECTED_READ { ANNOTATE_IGNORE_READS_BEGIN(); T res = x; ANNOTATE_IGNORE_READS_END(); return res; } /* Apply ANNOTATE_BENIGN_RACE_SIZED to a static variable. */ #define ANNOTATE_BENIGN_RACE_STATIC(static_var, description) \ namespace { \ class static_var ## _annotator { \ public: \ static_var ## _annotator() { \ ANNOTATE_BENIGN_RACE_SIZED(&static_var, \ sizeof(static_var), \ # static_var ": " description); \ } \ }; \ static static_var ## _annotator the ## static_var ## _annotator;\ } #else /* DYNAMIC_ANNOTATIONS_ENABLED == 0 */ #define ANNOTATE_UNPROTECTED_READ(x) (x) #define ANNOTATE_BENIGN_RACE_STATIC(static_var, description) /* empty */ #endif /* DYNAMIC_ANNOTATIONS_ENABLED */ /* Annotalysis, a GCC based static analyzer, is able to understand and use some of the dynamic annotations defined in this file. However, dynamic annotations are usually disabled in the opt mode (to avoid additional runtime overheads) while Annotalysis only works in the opt mode. In order for Annotalysis to use these dynamic annotations when they are disabled, we re-define these annotations here. Note that unlike the original macro definitions above, these macros are expanded to calls to static inline functions so that the compiler will be able to remove the calls after the analysis. */ #ifdef ANNOTALYSIS_ONLY #undef ANNOTALYSIS_ONLY /* Undefine and re-define the macros that the static analyzer understands. */ #undef ANNOTATE_IGNORE_READS_BEGIN #define ANNOTATE_IGNORE_READS_BEGIN() \ AnnotateIgnoreReadsBegin(__FILE__, __LINE__) #undef ANNOTATE_IGNORE_READS_END #define ANNOTATE_IGNORE_READS_END() \ AnnotateIgnoreReadsEnd(__FILE__, __LINE__) #undef ANNOTATE_IGNORE_WRITES_BEGIN #define ANNOTATE_IGNORE_WRITES_BEGIN() \ AnnotateIgnoreWritesBegin(__FILE__, __LINE__) #undef ANNOTATE_IGNORE_WRITES_END #define ANNOTATE_IGNORE_WRITES_END() \ AnnotateIgnoreWritesEnd(__FILE__, __LINE__) #undef ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN #define ANNOTATE_IGNORE_READS_AND_WRITES_BEGIN() \ do { \ ANNOTATE_IGNORE_READS_BEGIN(); \ ANNOTATE_IGNORE_WRITES_BEGIN(); \ }while(0) \ #undef ANNOTATE_IGNORE_READS_AND_WRITES_END #define ANNOTATE_IGNORE_READS_AND_WRITES_END() \ do { \ ANNOTATE_IGNORE_WRITES_END(); \ ANNOTATE_IGNORE_READS_END(); \ }while(0) \ #if defined(__cplusplus) #undef ANNOTATE_UNPROTECTED_READ template inline T ANNOTATE_UNPROTECTED_READ(const volatile T &x) ANNOTALYSIS_UNPROTECTED_READ { ANNOTATE_IGNORE_READS_BEGIN(); T res = x; ANNOTATE_IGNORE_READS_END(); return res; } #endif /* __cplusplus */ #endif /* ANNOTALYSIS_ONLY */ /* Undefine the macros intended only in this file. */ #undef ANNOTALYSIS_STATIC_INLINE #undef ANNOTALYSIS_SEMICOLON_OR_EMPTY_BODY #endif /* BASE_DYNAMIC_ANNOTATIONS_H_ */ gperftools-2.4/src/base/googleinit.h0000644000000000000000000000557512440704174014463 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Jacob Hoffman-Andrews #ifndef _GOOGLEINIT_H #define _GOOGLEINIT_H #include "base/logging.h" class GoogleInitializer { public: typedef void (*VoidFunction)(void); GoogleInitializer(const char* name, VoidFunction ctor, VoidFunction dtor) : name_(name), destructor_(dtor) { RAW_VLOG(10, " constructing: %s\n", name_); if (ctor) ctor(); } ~GoogleInitializer() { RAW_VLOG(10, " destroying: %s\n", name_); if (destructor_) destructor_(); } private: const char* const name_; const VoidFunction destructor_; }; #define REGISTER_MODULE_INITIALIZER(name, body) \ namespace { \ static void google_init_module_##name () { body; } \ GoogleInitializer google_initializer_module_##name(#name, \ google_init_module_##name, NULL); \ } #define REGISTER_MODULE_DESTRUCTOR(name, body) \ namespace { \ static void google_destruct_module_##name () { body; } \ GoogleInitializer google_destructor_module_##name(#name, \ NULL, google_destruct_module_##name); \ } #endif /* _GOOGLEINIT_H */ gperftools-2.4/src/base/simple_mutex.h0000644000000000000000000003324112440704174015025 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Author: Craig Silverstein. // // A simple mutex wrapper, supporting locks and read-write locks. // You should assume the locks are *not* re-entrant. // // To use: you should define the following macros in your configure.ac: // ACX_PTHREAD // AC_RWLOCK // The latter is defined in ../autoconf. // // This class is meant to be internal-only and should be wrapped by an // internal namespace. Before you use this module, please give the // name of your internal namespace for this module. Or, if you want // to expose it, you'll want to move it to the Google namespace. We // cannot put this class in global namespace because there can be some // problems when we have multiple versions of Mutex in each shared object. // // NOTE: TryLock() is broken for NO_THREADS mode, at least in NDEBUG // mode. // // CYGWIN NOTE: Cygwin support for rwlock seems to be buggy: // http://www.cygwin.com/ml/cygwin/2008-12/msg00017.html // Because of that, we might as well use windows locks for // cygwin. They seem to be more reliable than the cygwin pthreads layer. // // TRICKY IMPLEMENTATION NOTE: // This class is designed to be safe to use during // dynamic-initialization -- that is, by global constructors that are // run before main() starts. The issue in this case is that // dynamic-initialization happens in an unpredictable order, and it // could be that someone else's dynamic initializer could call a // function that tries to acquire this mutex -- but that all happens // before this mutex's constructor has run. (This can happen even if // the mutex and the function that uses the mutex are in the same .cc // file.) Basically, because Mutex does non-trivial work in its // constructor, it's not, in the naive implementation, safe to use // before dynamic initialization has run on it. // // The solution used here is to pair the actual mutex primitive with a // bool that is set to true when the mutex is dynamically initialized. // (Before that it's false.) Then we modify all mutex routines to // look at the bool, and not try to lock/unlock until the bool makes // it to true (which happens after the Mutex constructor has run.) // // This works because before main() starts -- particularly, during // dynamic initialization -- there are no threads, so a) it's ok that // the mutex operations are a no-op, since we don't need locking then // anyway; and b) we can be quite confident our bool won't change // state between a call to Lock() and a call to Unlock() (that would // require a global constructor in one translation unit to call Lock() // and another global constructor in another translation unit to call // Unlock() later, which is pretty perverse). // // That said, it's tricky, and can conceivably fail; it's safest to // avoid trying to acquire a mutex in a global constructor, if you // can. One way it can fail is that a really smart compiler might // initialize the bool to true at static-initialization time (too // early) rather than at dynamic-initialization time. To discourage // that, we set is_safe_ to true in code (not the constructor // colon-initializer) and set it to true via a function that always // evaluates to true, but that the compiler can't know always // evaluates to true. This should be good enough. // // A related issue is code that could try to access the mutex // after it's been destroyed in the global destructors (because // the Mutex global destructor runs before some other global // destructor, that tries to acquire the mutex). The way we // deal with this is by taking a constructor arg that global // mutexes should pass in, that causes the destructor to do no // work. We still depend on the compiler not doing anything // weird to a Mutex's memory after it is destroyed, but for a // static global variable, that's pretty safe. #ifndef GOOGLE_MUTEX_H_ #define GOOGLE_MUTEX_H_ #include #if defined(NO_THREADS) typedef int MutexType; // to keep a lock-count #elif defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) # ifndef WIN32_LEAN_AND_MEAN # define WIN32_LEAN_AND_MEAN // We only need minimal includes # endif // We need Windows NT or later for TryEnterCriticalSection(). If you // don't need that functionality, you can remove these _WIN32_WINNT // lines, and change TryLock() to assert(0) or something. # ifndef _WIN32_WINNT # define _WIN32_WINNT 0x0400 # endif # include typedef CRITICAL_SECTION MutexType; #elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK) // Needed for pthread_rwlock_*. If it causes problems, you could take it // out, but then you'd have to unset HAVE_RWLOCK (at least on linux -- it // *does* cause problems for FreeBSD, or MacOSX, but isn't needed // for locking there.) # ifdef __linux__ # define _XOPEN_SOURCE 500 // may be needed to get the rwlock calls # endif # include typedef pthread_rwlock_t MutexType; #elif defined(HAVE_PTHREAD) # include typedef pthread_mutex_t MutexType; #else # error Need to implement mutex.h for your architecture, or #define NO_THREADS #endif #include #include // for abort() #define MUTEX_NAMESPACE perftools_mutex_namespace namespace MUTEX_NAMESPACE { class Mutex { public: // This is used for the single-arg constructor enum LinkerInitialized { LINKER_INITIALIZED }; // Create a Mutex that is not held by anybody. This constructor is // typically used for Mutexes allocated on the heap or the stack. inline Mutex(); // This constructor should be used for global, static Mutex objects. // It inhibits work being done by the destructor, which makes it // safer for code that tries to acqiure this mutex in their global // destructor. inline Mutex(LinkerInitialized); // Destructor inline ~Mutex(); inline void Lock(); // Block if needed until free then acquire exclusively inline void Unlock(); // Release a lock acquired via Lock() inline bool TryLock(); // If free, Lock() and return true, else return false // Note that on systems that don't support read-write locks, these may // be implemented as synonyms to Lock() and Unlock(). So you can use // these for efficiency, but don't use them anyplace where being able // to do shared reads is necessary to avoid deadlock. inline void ReaderLock(); // Block until free or shared then acquire a share inline void ReaderUnlock(); // Release a read share of this Mutex inline void WriterLock() { Lock(); } // Acquire an exclusive lock inline void WriterUnlock() { Unlock(); } // Release a lock from WriterLock() private: MutexType mutex_; // We want to make sure that the compiler sets is_safe_ to true only // when we tell it to, and never makes assumptions is_safe_ is // always true. volatile is the most reliable way to do that. volatile bool is_safe_; // This indicates which constructor was called. bool destroy_; inline void SetIsSafe() { is_safe_ = true; } // Catch the error of writing Mutex when intending MutexLock. Mutex(Mutex* /*ignored*/) {} // Disallow "evil" constructors Mutex(const Mutex&); void operator=(const Mutex&); }; // Now the implementation of Mutex for various systems #if defined(NO_THREADS) // When we don't have threads, we can be either reading or writing, // but not both. We can have lots of readers at once (in no-threads // mode, that's most likely to happen in recursive function calls), // but only one writer. We represent this by having mutex_ be -1 when // writing and a number > 0 when reading (and 0 when no lock is held). // // In debug mode, we assert these invariants, while in non-debug mode // we do nothing, for efficiency. That's why everything is in an // assert. Mutex::Mutex() : mutex_(0) { } Mutex::Mutex(Mutex::LinkerInitialized) : mutex_(0) { } Mutex::~Mutex() { assert(mutex_ == 0); } void Mutex::Lock() { assert(--mutex_ == -1); } void Mutex::Unlock() { assert(mutex_++ == -1); } bool Mutex::TryLock() { if (mutex_) return false; Lock(); return true; } void Mutex::ReaderLock() { assert(++mutex_ > 0); } void Mutex::ReaderUnlock() { assert(mutex_-- > 0); } #elif defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) Mutex::Mutex() : destroy_(true) { InitializeCriticalSection(&mutex_); SetIsSafe(); } Mutex::Mutex(LinkerInitialized) : destroy_(false) { InitializeCriticalSection(&mutex_); SetIsSafe(); } Mutex::~Mutex() { if (destroy_) DeleteCriticalSection(&mutex_); } void Mutex::Lock() { if (is_safe_) EnterCriticalSection(&mutex_); } void Mutex::Unlock() { if (is_safe_) LeaveCriticalSection(&mutex_); } bool Mutex::TryLock() { return is_safe_ ? TryEnterCriticalSection(&mutex_) != 0 : true; } void Mutex::ReaderLock() { Lock(); } // we don't have read-write locks void Mutex::ReaderUnlock() { Unlock(); } #elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK) #define SAFE_PTHREAD(fncall) do { /* run fncall if is_safe_ is true */ \ if (is_safe_ && fncall(&mutex_) != 0) abort(); \ } while (0) Mutex::Mutex() : destroy_(true) { SetIsSafe(); if (is_safe_ && pthread_rwlock_init(&mutex_, NULL) != 0) abort(); } Mutex::Mutex(Mutex::LinkerInitialized) : destroy_(false) { SetIsSafe(); if (is_safe_ && pthread_rwlock_init(&mutex_, NULL) != 0) abort(); } Mutex::~Mutex() { if (destroy_) SAFE_PTHREAD(pthread_rwlock_destroy); } void Mutex::Lock() { SAFE_PTHREAD(pthread_rwlock_wrlock); } void Mutex::Unlock() { SAFE_PTHREAD(pthread_rwlock_unlock); } bool Mutex::TryLock() { return is_safe_ ? pthread_rwlock_trywrlock(&mutex_) == 0 : true; } void Mutex::ReaderLock() { SAFE_PTHREAD(pthread_rwlock_rdlock); } void Mutex::ReaderUnlock() { SAFE_PTHREAD(pthread_rwlock_unlock); } #undef SAFE_PTHREAD #elif defined(HAVE_PTHREAD) #define SAFE_PTHREAD(fncall) do { /* run fncall if is_safe_ is true */ \ if (is_safe_ && fncall(&mutex_) != 0) abort(); \ } while (0) Mutex::Mutex() : destroy_(true) { SetIsSafe(); if (is_safe_ && pthread_mutex_init(&mutex_, NULL) != 0) abort(); } Mutex::Mutex(Mutex::LinkerInitialized) : destroy_(false) { SetIsSafe(); if (is_safe_ && pthread_mutex_init(&mutex_, NULL) != 0) abort(); } Mutex::~Mutex() { if (destroy_) SAFE_PTHREAD(pthread_mutex_destroy); } void Mutex::Lock() { SAFE_PTHREAD(pthread_mutex_lock); } void Mutex::Unlock() { SAFE_PTHREAD(pthread_mutex_unlock); } bool Mutex::TryLock() { return is_safe_ ? pthread_mutex_trylock(&mutex_) == 0 : true; } void Mutex::ReaderLock() { Lock(); } void Mutex::ReaderUnlock() { Unlock(); } #undef SAFE_PTHREAD #endif // -------------------------------------------------------------------------- // Some helper classes // MutexLock(mu) acquires mu when constructed and releases it when destroyed. class MutexLock { public: explicit MutexLock(Mutex *mu) : mu_(mu) { mu_->Lock(); } ~MutexLock() { mu_->Unlock(); } private: Mutex * const mu_; // Disallow "evil" constructors MutexLock(const MutexLock&); void operator=(const MutexLock&); }; // ReaderMutexLock and WriterMutexLock do the same, for rwlocks class ReaderMutexLock { public: explicit ReaderMutexLock(Mutex *mu) : mu_(mu) { mu_->ReaderLock(); } ~ReaderMutexLock() { mu_->ReaderUnlock(); } private: Mutex * const mu_; // Disallow "evil" constructors ReaderMutexLock(const ReaderMutexLock&); void operator=(const ReaderMutexLock&); }; class WriterMutexLock { public: explicit WriterMutexLock(Mutex *mu) : mu_(mu) { mu_->WriterLock(); } ~WriterMutexLock() { mu_->WriterUnlock(); } private: Mutex * const mu_; // Disallow "evil" constructors WriterMutexLock(const WriterMutexLock&); void operator=(const WriterMutexLock&); }; // Catch bug where variable name is omitted, e.g. MutexLock (&mu); #define MutexLock(x) COMPILE_ASSERT(0, mutex_lock_decl_missing_var_name) #define ReaderMutexLock(x) COMPILE_ASSERT(0, rmutex_lock_decl_missing_var_name) #define WriterMutexLock(x) COMPILE_ASSERT(0, wmutex_lock_decl_missing_var_name) } // namespace MUTEX_NAMESPACE using namespace MUTEX_NAMESPACE; #undef MUTEX_NAMESPACE #endif /* #define GOOGLE_SIMPLE_MUTEX_H_ */ gperftools-2.4/src/base/sysinfo.h0000644000000000000000000002426612440704174014013 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2006, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // All functions here are thread-hostile due to file caching unless // commented otherwise. #ifndef _SYSINFO_H_ #define _SYSINFO_H_ #include #include #if (defined(_WIN32) || defined(__MINGW32__)) && (!defined(__CYGWIN__) && !defined(__CYGWIN32__)) #include // for DWORD #include // for CreateToolhelp32Snapshot #endif #ifdef HAVE_UNISTD_H #include // for pid_t #endif #include // for size_t #include // for PATH_MAX #include "base/basictypes.h" #include "base/logging.h" // for RawFD // This getenv function is safe to call before the C runtime is initialized. // On Windows, it utilizes GetEnvironmentVariable() and on unix it uses // /proc/self/environ instead calling getenv(). It's intended to be used in // routines that run before main(), when the state required for getenv() may // not be set up yet. In particular, errno isn't set up until relatively late // (after the pthreads library has a chance to make it threadsafe), and // getenv() doesn't work until then. // On some platforms, this call will utilize the same, static buffer for // repeated GetenvBeforeMain() calls. Callers should not expect pointers from // this routine to be long lived. // Note that on unix, /proc only has the environment at the time the // application was started, so this routine ignores setenv() calls/etc. Also // note it only reads the first 16K of the environment. extern const char* GetenvBeforeMain(const char* name); // This takes as an argument an environment-variable name (like // CPUPROFILE) whose value is supposed to be a file-path, and sets // path to that path, and returns true. Non-trivial for surprising // reasons, as documented in sysinfo.cc. path must have space PATH_MAX. extern bool GetUniquePathFromEnv(const char* env_name, char* path); extern int NumCPUs(); void SleepForMilliseconds(int milliseconds); // processor cycles per second of each processor. Thread-safe. extern double CyclesPerSecond(void); // Return true if we're running POSIX (e.g., NPTL on Linux) threads, // as opposed to a non-POSIX thread library. The thing that we care // about is whether a thread's pid is the same as the thread that // spawned it. If so, this function returns true. // Thread-safe. // Note: We consider false negatives to be OK. bool HasPosixThreads(); #ifndef SWIG // SWIG doesn't like struct Buffer and variable arguments. // A ProcMapsIterator abstracts access to /proc/maps for a given // process. Needs to be stack-allocatable and avoid using stdio/malloc // so it can be used in the google stack dumper, heap-profiler, etc. // // On Windows and Mac OS X, this iterator iterates *only* over DLLs // mapped into this process space. For Linux, FreeBSD, and Solaris, // it iterates over *all* mapped memory regions, including anonymous // mmaps. For other O/Ss, it is unlikely to work at all, and Valid() // will always return false. Also note: this routine only works on // FreeBSD if procfs is mounted: make sure this is in your /etc/fstab: // proc /proc procfs rw 0 0 class ProcMapsIterator { public: struct Buffer { #ifdef __FreeBSD__ // FreeBSD requires us to read all of the maps file at once, so // we have to make a buffer that's "always" big enough static const size_t kBufSize = 102400; #else // a one-line buffer is good enough static const size_t kBufSize = PATH_MAX + 1024; #endif char buf_[kBufSize]; }; // Create a new iterator for the specified pid. pid can be 0 for "self". explicit ProcMapsIterator(pid_t pid); // Create an iterator with specified storage (for use in signal // handler). "buffer" should point to a ProcMapsIterator::Buffer // buffer can be NULL in which case a bufer will be allocated. ProcMapsIterator(pid_t pid, Buffer *buffer); // Iterate through maps_backing instead of maps if use_maps_backing // is true. Otherwise the same as above. buffer can be NULL and // it will allocate a buffer itself. ProcMapsIterator(pid_t pid, Buffer *buffer, bool use_maps_backing); // Returns true if the iterator successfully initialized; bool Valid() const; // Returns a pointer to the most recently parsed line. Only valid // after Next() returns true, and until the iterator is destroyed or // Next() is called again. This may give strange results on non-Linux // systems. Prefer FormatLine() if that may be a concern. const char *CurrentLine() const { return stext_; } // Writes the "canonical" form of the /proc/xxx/maps info for a single // line to the passed-in buffer. Returns the number of bytes written, // or 0 if it was not able to write the complete line. (To guarantee // success, buffer should have size at least Buffer::kBufSize.) // Takes as arguments values set via a call to Next(). The // "canonical" form of the line (taken from linux's /proc/xxx/maps): // - + // : Note: the // eg // 08048000-0804c000 r-xp 00000000 03:01 3793678 /bin/cat // If you don't have the dev_t (dev), feel free to pass in 0. // (Next() doesn't return a dev_t, though NextExt does.) // // Note: if filename and flags were obtained via a call to Next(), // then the output of this function is only valid if Next() returned // true, and only until the iterator is destroyed or Next() is // called again. (Since filename, at least, points into CurrentLine.) static int FormatLine(char* buffer, int bufsize, uint64 start, uint64 end, const char *flags, uint64 offset, int64 inode, const char *filename, dev_t dev); // Find the next entry in /proc/maps; return true if found or false // if at the end of the file. // // Any of the result pointers can be NULL if you're not interested // in those values. // // If "flags" and "filename" are passed, they end up pointing to // storage within the ProcMapsIterator that is valid only until the // iterator is destroyed or Next() is called again. The caller may // modify the contents of these strings (up as far as the first NUL, // and only until the subsequent call to Next()) if desired. // The offsets are all uint64 in order to handle the case of a // 32-bit process running on a 64-bit kernel // // IMPORTANT NOTE: see top-of-class notes for details about what // mapped regions Next() iterates over, depending on O/S. // TODO(csilvers): make flags and filename const. bool Next(uint64 *start, uint64 *end, char **flags, uint64 *offset, int64 *inode, char **filename); bool NextExt(uint64 *start, uint64 *end, char **flags, uint64 *offset, int64 *inode, char **filename, uint64 *file_mapping, uint64 *file_pages, uint64 *anon_mapping, uint64 *anon_pages, dev_t *dev); ~ProcMapsIterator(); private: void Init(pid_t pid, Buffer *buffer, bool use_maps_backing); char *ibuf_; // input buffer char *stext_; // start of text char *etext_; // end of text char *nextline_; // start of next line char *ebuf_; // end of buffer (1 char for a nul) #if (defined(_WIN32) || defined(__MINGW32__)) && (!defined(__CYGWIN__) && !defined(__CYGWIN32__)) HANDLE snapshot_; // filehandle on dll info // In a change from the usual W-A pattern, there is no A variant of // MODULEENTRY32. Tlhelp32.h #defines the W variant, but not the A. // We want the original A variants, and this #undef is the only // way I see to get them. Redefining it when we're done prevents us // from affecting other .cc files. # ifdef MODULEENTRY32 // Alias of W # undef MODULEENTRY32 MODULEENTRY32 module_; // info about current dll (and dll iterator) # define MODULEENTRY32 MODULEENTRY32W # else // It's the ascii, the one we want. MODULEENTRY32 module_; // info about current dll (and dll iterator) # endif #elif defined(__MACH__) int current_image_; // dll's are called "images" in macos parlance int current_load_cmd_; // the segment of this dll we're examining #elif defined(__sun__) // Solaris int fd_; char current_filename_[PATH_MAX]; #else int fd_; // filehandle on /proc/*/maps #endif pid_t pid_; char flags_[10]; Buffer* dynamic_buffer_; // dynamically-allocated Buffer bool using_maps_backing_; // true if we are looking at maps_backing instead of maps. }; #endif /* #ifndef SWIG */ // Helper routines namespace tcmalloc { int FillProcSelfMaps(char buf[], int size, bool* wrote_all); void DumpProcSelfMaps(RawFD fd); } #endif /* #ifndef _SYSINFO_H_ */ gperftools-2.4/src/base/spinlock.h0000644000000000000000000001322412440704174014133 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat */ // SpinLock is async signal safe. // If used within a signal handler, all lock holders // should block the signal even outside the signal handler. #ifndef BASE_SPINLOCK_H_ #define BASE_SPINLOCK_H_ #include #include "base/atomicops.h" #include "base/basictypes.h" #include "base/dynamic_annotations.h" #include "base/thread_annotations.h" class LOCKABLE SpinLock { public: SpinLock() : lockword_(kSpinLockFree) { } // Special constructor for use with static SpinLock objects. E.g., // // static SpinLock lock(base::LINKER_INITIALIZED); // // When intialized using this constructor, we depend on the fact // that the linker has already initialized the memory appropriately. // A SpinLock constructed like this can be freely used from global // initializers without worrying about the order in which global // initializers run. explicit SpinLock(base::LinkerInitialized /*x*/) { // Does nothing; lockword_ is already initialized } // Acquire this SpinLock. // TODO(csilvers): uncomment the annotation when we figure out how to // support this macro with 0 args (see thread_annotations.h) inline void Lock() /*EXCLUSIVE_LOCK_FUNCTION()*/ { if (base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockFree, kSpinLockHeld) != kSpinLockFree) { SlowLock(); } ANNOTATE_RWLOCK_ACQUIRED(this, 1); } // Try to acquire this SpinLock without blocking and return true if the // acquisition was successful. If the lock was not acquired, false is // returned. If this SpinLock is free at the time of the call, TryLock // will return true with high probability. inline bool TryLock() EXCLUSIVE_TRYLOCK_FUNCTION(true) { bool res = (base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockFree, kSpinLockHeld) == kSpinLockFree); if (res) { ANNOTATE_RWLOCK_ACQUIRED(this, 1); } return res; } // Release this SpinLock, which must be held by the calling thread. // TODO(csilvers): uncomment the annotation when we figure out how to // support this macro with 0 args (see thread_annotations.h) inline void Unlock() /*UNLOCK_FUNCTION()*/ { ANNOTATE_RWLOCK_RELEASED(this, 1); uint64 wait_cycles = static_cast( base::subtle::Release_AtomicExchange(&lockword_, kSpinLockFree)); if (wait_cycles != kSpinLockHeld) { // Collect contentionz profile info, and speed the wakeup of any waiter. // The wait_cycles value indicates how long this thread spent waiting // for the lock. SlowUnlock(wait_cycles); } } // Determine if the lock is held. When the lock is held by the invoking // thread, true will always be returned. Intended to be used as // CHECK(lock.IsHeld()). inline bool IsHeld() const { return base::subtle::NoBarrier_Load(&lockword_) != kSpinLockFree; } static const base::LinkerInitialized LINKER_INITIALIZED; // backwards compat private: enum { kSpinLockFree = 0 }; enum { kSpinLockHeld = 1 }; enum { kSpinLockSleeper = 2 }; volatile Atomic32 lockword_; void SlowLock(); void SlowUnlock(uint64 wait_cycles); Atomic32 SpinLoop(int64 initial_wait_timestamp, Atomic32* wait_cycles); inline int32 CalculateWaitCycles(int64 wait_start_time); DISALLOW_COPY_AND_ASSIGN(SpinLock); }; // Corresponding locker object that arranges to acquire a spinlock for // the duration of a C++ scope. class SCOPED_LOCKABLE SpinLockHolder { private: SpinLock* lock_; public: inline explicit SpinLockHolder(SpinLock* l) EXCLUSIVE_LOCK_FUNCTION(l) : lock_(l) { l->Lock(); } // TODO(csilvers): uncomment the annotation when we figure out how to // support this macro with 0 args (see thread_annotations.h) inline ~SpinLockHolder() /*UNLOCK_FUNCTION()*/ { lock_->Unlock(); } }; // Catch bug where variable name is omitted, e.g. SpinLockHolder (&lock); #define SpinLockHolder(x) COMPILE_ASSERT(0, spin_lock_decl_missing_var_name) #endif // BASE_SPINLOCK_H_ gperftools-2.4/src/base/spinlock_internal.h0000644000000000000000000000522712440704174016033 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2010, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * This file is an internal part spinlock.cc and once.cc * It may not be used directly by code outside of //base. */ #ifndef BASE_SPINLOCK_INTERNAL_H_ #define BASE_SPINLOCK_INTERNAL_H_ #include #include "base/basictypes.h" #include "base/atomicops.h" namespace base { namespace internal { // SpinLockWait() waits until it can perform one of several transitions from // "from" to "to". It returns when it performs a transition where done==true. struct SpinLockWaitTransition { int32 from; int32 to; bool done; }; // Wait until *w can transition from trans[i].from to trans[i].to for some i // satisfying 0<=i #ifdef HAVE_STDINT_H #include #endif // ------------------------------------------------------------------------ // Include the platform specific implementations of the types // and operations listed below. Implementations are to provide Atomic32 // and Atomic64 operations. If there is a mismatch between intptr_t and // the Atomic32 or Atomic64 types for a platform, the platform-specific header // should define the macro, AtomicWordCastType in a clause similar to the // following: // #if ...pointers are 64 bits... // # define AtomicWordCastType base::subtle::Atomic64 // #else // # define AtomicWordCastType Atomic32 // #endif // TODO(csilvers): figure out ARCH_PIII/ARCH_K8 (perhaps via ./configure?) // ------------------------------------------------------------------------ #include "base/arm_instruction_set_select.h" #define GCC_VERSION (__GNUC__ * 10000 \ + __GNUC_MINOR__ * 100 \ + __GNUC_PATCHLEVEL__) #if defined(TCMALLOC_PREFER_GCC_ATOMICS) && defined(__GNUC__) && GCC_VERSION >= 40700 #include "base/atomicops-internals-gcc.h" #elif defined(__MACH__) && defined(__APPLE__) #include "base/atomicops-internals-macosx.h" #elif defined(__GNUC__) && defined(ARMV6) #include "base/atomicops-internals-arm-v6plus.h" #elif defined(ARMV3) #include "base/atomicops-internals-arm-generic.h" #elif defined(__GNUC__) && (defined(__i386) || defined(__x86_64__)) #include "base/atomicops-internals-x86.h" #elif defined(_WIN32) #include "base/atomicops-internals-windows.h" #elif defined(__linux__) && defined(__PPC__) #include "base/atomicops-internals-linuxppc.h" #elif defined(__GNUC__) && defined(__mips__) #include "base/atomicops-internals-mips.h" #elif defined(__GNUC__) && GCC_VERSION >= 40700 #include "base/atomicops-internals-gcc.h" #else #error You need to implement atomic operations for this architecture #endif // Signed type that can hold a pointer and supports the atomic ops below, as // well as atomic loads and stores. Instances must be naturally-aligned. typedef intptr_t AtomicWord; #ifdef AtomicWordCastType // ------------------------------------------------------------------------ // This section is needed only when explicit type casting is required to // cast AtomicWord to one of the basic atomic types (Atomic64 or Atomic32). // It also serves to document the AtomicWord interface. // ------------------------------------------------------------------------ namespace base { namespace subtle { // Atomically execute: // result = *ptr; // if (*ptr == old_value) // *ptr = new_value; // return result; // // I.e., replace "*ptr" with "new_value" if "*ptr" used to be "old_value". // Always return the old value of "*ptr" // // This routine implies no memory barriers. inline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr, AtomicWord old_value, AtomicWord new_value) { return NoBarrier_CompareAndSwap( reinterpret_cast(ptr), old_value, new_value); } // Atomically store new_value into *ptr, returning the previous value held in // *ptr. This routine implies no memory barriers. inline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr, AtomicWord new_value) { return NoBarrier_AtomicExchange( reinterpret_cast(ptr), new_value); } inline AtomicWord Acquire_AtomicExchange(volatile AtomicWord* ptr, AtomicWord new_value) { return Acquire_AtomicExchange( reinterpret_cast(ptr), new_value); } inline AtomicWord Release_AtomicExchange(volatile AtomicWord* ptr, AtomicWord new_value) { return Release_AtomicExchange( reinterpret_cast(ptr), new_value); } inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr, AtomicWord old_value, AtomicWord new_value) { return base::subtle::Acquire_CompareAndSwap( reinterpret_cast(ptr), old_value, new_value); } inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr, AtomicWord old_value, AtomicWord new_value) { return base::subtle::Release_CompareAndSwap( reinterpret_cast(ptr), old_value, new_value); } inline void NoBarrier_Store(volatile AtomicWord *ptr, AtomicWord value) { NoBarrier_Store( reinterpret_cast(ptr), value); } inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) { return base::subtle::Acquire_Store( reinterpret_cast(ptr), value); } inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) { return base::subtle::Release_Store( reinterpret_cast(ptr), value); } inline AtomicWord NoBarrier_Load(volatile const AtomicWord *ptr) { return NoBarrier_Load( reinterpret_cast(ptr)); } inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) { return base::subtle::Acquire_Load( reinterpret_cast(ptr)); } inline AtomicWord Release_Load(volatile const AtomicWord* ptr) { return base::subtle::Release_Load( reinterpret_cast(ptr)); } } // namespace base::subtle } // namespace base #endif // AtomicWordCastType // ------------------------------------------------------------------------ // Commented out type definitions and method declarations for documentation // of the interface provided by this module. // ------------------------------------------------------------------------ #if 0 // Signed 32-bit type that supports the atomic ops below, as well as atomic // loads and stores. Instances must be naturally aligned. This type differs // from AtomicWord in 64-bit binaries where AtomicWord is 64-bits. typedef int32_t Atomic32; // Corresponding operations on Atomic32 namespace base { namespace subtle { // Signed 64-bit type that supports the atomic ops below, as well as atomic // loads and stores. Instances must be naturally aligned. This type differs // from AtomicWord in 32-bit binaries where AtomicWord is 32-bits. typedef int64_t Atomic64; Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value); Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value); Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value); Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value); Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value); Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value); void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value); void Acquire_Store(volatile Atomic32* ptr, Atomic32 value); void Release_Store(volatile Atomic32* ptr, Atomic32 value); Atomic32 NoBarrier_Load(volatile const Atomic32* ptr); Atomic32 Acquire_Load(volatile const Atomic32* ptr); Atomic32 Release_Load(volatile const Atomic32* ptr); // Corresponding operations on Atomic64 Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value); Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value); Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value); Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value); Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value); Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value); void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value); void Acquire_Store(volatile Atomic64* ptr, Atomic64 value); void Release_Store(volatile Atomic64* ptr, Atomic64 value); Atomic64 NoBarrier_Load(volatile const Atomic64* ptr); Atomic64 Acquire_Load(volatile const Atomic64* ptr); Atomic64 Release_Load(volatile const Atomic64* ptr); } // namespace base::subtle } // namespace base void MemoryBarrier(); #endif // 0 // ------------------------------------------------------------------------ // The following are to be deprecated when all uses have been changed to // use the base::subtle namespace. // ------------------------------------------------------------------------ #ifdef AtomicWordCastType // AtomicWord versions to be deprecated inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr, AtomicWord old_value, AtomicWord new_value) { return base::subtle::Acquire_CompareAndSwap(ptr, old_value, new_value); } inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr, AtomicWord old_value, AtomicWord new_value) { return base::subtle::Release_CompareAndSwap(ptr, old_value, new_value); } inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) { return base::subtle::Acquire_Store(ptr, value); } inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) { return base::subtle::Release_Store(ptr, value); } inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) { return base::subtle::Acquire_Load(ptr); } inline AtomicWord Release_Load(volatile const AtomicWord* ptr) { return base::subtle::Release_Load(ptr); } #endif // AtomicWordCastType // 32-bit Acquire/Release operations to be deprecated. inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { return base::subtle::Acquire_CompareAndSwap(ptr, old_value, new_value); } inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { return base::subtle::Release_CompareAndSwap(ptr, old_value, new_value); } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { base::subtle::Acquire_Store(ptr, value); } inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { return base::subtle::Release_Store(ptr, value); } inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { return base::subtle::Acquire_Load(ptr); } inline Atomic32 Release_Load(volatile const Atomic32* ptr) { return base::subtle::Release_Load(ptr); } #ifdef BASE_HAS_ATOMIC64 // 64-bit Acquire/Release operations to be deprecated. inline base::subtle::Atomic64 Acquire_CompareAndSwap( volatile base::subtle::Atomic64* ptr, base::subtle::Atomic64 old_value, base::subtle::Atomic64 new_value) { return base::subtle::Acquire_CompareAndSwap(ptr, old_value, new_value); } inline base::subtle::Atomic64 Release_CompareAndSwap( volatile base::subtle::Atomic64* ptr, base::subtle::Atomic64 old_value, base::subtle::Atomic64 new_value) { return base::subtle::Release_CompareAndSwap(ptr, old_value, new_value); } inline void Acquire_Store( volatile base::subtle::Atomic64* ptr, base::subtle::Atomic64 value) { base::subtle::Acquire_Store(ptr, value); } inline void Release_Store( volatile base::subtle::Atomic64* ptr, base::subtle::Atomic64 value) { return base::subtle::Release_Store(ptr, value); } inline base::subtle::Atomic64 Acquire_Load( volatile const base::subtle::Atomic64* ptr) { return base::subtle::Acquire_Load(ptr); } inline base::subtle::Atomic64 Release_Load( volatile const base::subtle::Atomic64* ptr) { return base::subtle::Release_Load(ptr); } #endif // BASE_HAS_ATOMIC64 #endif // THREAD_ATOMICOPS_H_ gperftools-2.4/src/base/atomicops-internals-macosx.h0000644000000000000000000002720412440704174017577 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // Implementation of atomic operations for Mac OS X. This file should not // be included directly. Clients should instead include // "base/atomicops.h". #ifndef BASE_ATOMICOPS_INTERNALS_MACOSX_H_ #define BASE_ATOMICOPS_INTERNALS_MACOSX_H_ typedef int32_t Atomic32; // MacOS uses long for intptr_t, AtomicWord and Atomic32 are always different // on the Mac, even when they are the same size. Similarly, on __ppc64__, // AtomicWord and Atomic64 are always different. Thus, we need explicit // casting. #ifdef __LP64__ #define AtomicWordCastType base::subtle::Atomic64 #else #define AtomicWordCastType Atomic32 #endif #if defined(__LP64__) || defined(__i386__) #define BASE_HAS_ATOMIC64 1 // Use only in tests and base/atomic* #endif #include namespace base { namespace subtle { #if !defined(__LP64__) && defined(__ppc__) // The Mac 64-bit OSAtomic implementations are not available for 32-bit PowerPC, // while the underlying assembly instructions are available only some // implementations of PowerPC. // The following inline functions will fail with the error message at compile // time ONLY IF they are called. So it is safe to use this header if user // code only calls AtomicWord and Atomic32 operations. // // NOTE(vchen): Implementation notes to implement the atomic ops below may // be found in "PowerPC Virtual Environment Architecture, Book II, // Version 2.02", January 28, 2005, Appendix B, page 46. Unfortunately, // extra care must be taken to ensure data are properly 8-byte aligned, and // that data are returned correctly according to Mac OS X ABI specs. inline int64_t OSAtomicCompareAndSwap64( int64_t oldValue, int64_t newValue, int64_t *theValue) { __asm__ __volatile__( "_OSAtomicCompareAndSwap64_not_supported_for_32_bit_ppc\n\t"); return 0; } inline int64_t OSAtomicAdd64(int64_t theAmount, int64_t *theValue) { __asm__ __volatile__( "_OSAtomicAdd64_not_supported_for_32_bit_ppc\n\t"); return 0; } inline int64_t OSAtomicCompareAndSwap64Barrier( int64_t oldValue, int64_t newValue, int64_t *theValue) { int64_t prev = OSAtomicCompareAndSwap64(oldValue, newValue, theValue); OSMemoryBarrier(); return prev; } inline int64_t OSAtomicAdd64Barrier( int64_t theAmount, int64_t *theValue) { int64_t new_val = OSAtomicAdd64(theAmount, theValue); OSMemoryBarrier(); return new_val; } #endif typedef int64_t Atomic64; inline void MemoryBarrier() { OSMemoryBarrier(); } // 32-bit Versions. inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32 *ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value; do { if (OSAtomicCompareAndSwap32(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32 *ptr, Atomic32 new_value) { Atomic32 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap32(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32 *ptr, Atomic32 new_value) { Atomic32 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap32Barrier(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic32 Release_AtomicExchange(volatile Atomic32 *ptr, Atomic32 new_value) { return Acquire_AtomicExchange(ptr, new_value); } inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32 *ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value; do { if (OSAtomicCompareAndSwap32Barrier(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic32 Release_CompareAndSwap(volatile Atomic32 *ptr, Atomic32 old_value, Atomic32 new_value) { return Acquire_CompareAndSwap(ptr, old_value, new_value); } inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic32 *ptr, Atomic32 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic32 *ptr, Atomic32 value) { MemoryBarrier(); *ptr = value; } inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32 *ptr) { Atomic32 value = *ptr; MemoryBarrier(); return value; } inline Atomic32 Release_Load(volatile const Atomic32 *ptr) { MemoryBarrier(); return *ptr; } // 64-bit version inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64 *ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value; do { if (OSAtomicCompareAndSwap64(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64 *ptr, Atomic64 new_value) { Atomic64 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap64(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64 *ptr, Atomic64 new_value) { Atomic64 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap64Barrier(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic64 Release_AtomicExchange(volatile Atomic64 *ptr, Atomic64 new_value) { return Acquire_AtomicExchange(ptr, new_value); } inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64 *ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value; do { if (OSAtomicCompareAndSwap64Barrier(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic64 Release_CompareAndSwap(volatile Atomic64 *ptr, Atomic64 old_value, Atomic64 new_value) { // The lib kern interface does not distinguish between // Acquire and Release memory barriers; they are equivalent. return Acquire_CompareAndSwap(ptr, old_value, new_value); } #ifdef __LP64__ // 64-bit implementation on 64-bit platform inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic64 *ptr, Atomic64 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) { MemoryBarrier(); *ptr = value; } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { return *ptr; } inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) { Atomic64 value = *ptr; MemoryBarrier(); return value; } inline Atomic64 Release_Load(volatile const Atomic64 *ptr) { MemoryBarrier(); return *ptr; } #else // 64-bit implementation on 32-bit platform #if defined(__ppc__) inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { __asm__ __volatile__( "_NoBarrier_Store_not_supported_for_32_bit_ppc\n\t"); } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { __asm__ __volatile__( "_NoBarrier_Load_not_supported_for_32_bit_ppc\n\t"); return 0; } #elif defined(__i386__) inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { __asm__ __volatile__("movq %1, %%mm0\n\t" // Use mmx reg for 64-bit atomic "movq %%mm0, %0\n\t" // moves (ptr could be read-only) "emms\n\t" // Reset FP registers : "=m" (*ptr) : "m" (value) : // mark the FP stack and mmx registers as clobbered "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)", "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7"); } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { Atomic64 value; __asm__ __volatile__("movq %1, %%mm0\n\t" // Use mmx reg for 64-bit atomic "movq %%mm0, %0\n\t" // moves (ptr could be read-only) "emms\n\t" // Reset FP registers : "=m" (value) : "m" (*ptr) : // mark the FP stack and mmx registers as clobbered "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)", "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7"); return value; } #endif inline void Acquire_Store(volatile Atomic64 *ptr, Atomic64 value) { NoBarrier_Store(ptr, value); MemoryBarrier(); } inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) { MemoryBarrier(); NoBarrier_Store(ptr, value); } inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) { Atomic64 value = NoBarrier_Load(ptr); MemoryBarrier(); return value; } inline Atomic64 Release_Load(volatile const Atomic64 *ptr) { MemoryBarrier(); return NoBarrier_Load(ptr); } #endif // __LP64__ } // namespace base::subtle } // namespace base #endif // BASE_ATOMICOPS_INTERNALS_MACOSX_H_ gperftools-2.4/src/base/atomicops-internals-linuxppc.h0000644000000000000000000003310312440704174020142 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- */ // Implementation of atomic operations for ppc-linux. This file should not // be included directly. Clients should instead include // "base/atomicops.h". #ifndef BASE_ATOMICOPS_INTERNALS_LINUXPPC_H_ #define BASE_ATOMICOPS_INTERNALS_LINUXPPC_H_ typedef int32_t Atomic32; #ifdef __PPC64__ #define BASE_HAS_ATOMIC64 1 #endif namespace base { namespace subtle { static inline void _sync(void) { __asm__ __volatile__("sync": : : "memory"); } static inline void _lwsync(void) { // gcc defines __NO_LWSYNC__ when appropriate; see // http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01238.html #ifdef __NO_LWSYNC__ __asm__ __volatile__("msync": : : "memory"); #else __asm__ __volatile__("lwsync": : : "memory"); #endif } static inline void _isync(void) { __asm__ __volatile__("isync": : : "memory"); } static inline Atomic32 OSAtomicAdd32(Atomic32 amount, Atomic32 *value) { Atomic32 t; __asm__ __volatile__( "1: lwarx %0,0,%3\n\ add %0,%2,%0\n\ stwcx. %0,0,%3 \n\ bne- 1b" : "=&r" (t), "+m" (*value) : "r" (amount), "r" (value) : "cc"); return t; } static inline Atomic32 OSAtomicAdd32Barrier(Atomic32 amount, Atomic32 *value) { Atomic32 t; _lwsync(); t = OSAtomicAdd32(amount, value); // This is based on the code snippet in the architecture manual (Vol // 2, Appendix B). It's a little tricky: correctness depends on the // fact that the code right before this (in OSAtomicAdd32) has a // conditional branch with a data dependency on the update. // Otherwise, we'd have to use sync. _isync(); return t; } static inline bool OSAtomicCompareAndSwap32(Atomic32 old_value, Atomic32 new_value, Atomic32 *value) { Atomic32 prev; __asm__ __volatile__( "1: lwarx %0,0,%2\n\ cmpw 0,%0,%3\n\ bne- 2f\n\ stwcx. %4,0,%2\n\ bne- 1b\n\ 2:" : "=&r" (prev), "+m" (*value) : "r" (value), "r" (old_value), "r" (new_value) : "cc"); return prev == old_value; } static inline Atomic32 OSAtomicCompareAndSwap32Acquire(Atomic32 old_value, Atomic32 new_value, Atomic32 *value) { Atomic32 t; t = OSAtomicCompareAndSwap32(old_value, new_value, value); // This is based on the code snippet in the architecture manual (Vol // 2, Appendix B). It's a little tricky: correctness depends on the // fact that the code right before this (in // OSAtomicCompareAndSwap32) has a conditional branch with a data // dependency on the update. Otherwise, we'd have to use sync. _isync(); return t; } static inline Atomic32 OSAtomicCompareAndSwap32Release(Atomic32 old_value, Atomic32 new_value, Atomic32 *value) { _lwsync(); return OSAtomicCompareAndSwap32(old_value, new_value, value); } typedef int64_t Atomic64; inline void MemoryBarrier() { // This can't be _lwsync(); we need to order the immediately // preceding stores against any load that may follow, but lwsync // doesn't guarantee that. _sync(); } // 32-bit Versions. inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32 *ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value; do { if (OSAtomicCompareAndSwap32(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32 *ptr, Atomic32 new_value) { Atomic32 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap32(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32 *ptr, Atomic32 new_value) { Atomic32 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap32Acquire(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic32 Release_AtomicExchange(volatile Atomic32 *ptr, Atomic32 new_value) { Atomic32 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap32Release(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32 *ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value; do { if (OSAtomicCompareAndSwap32Acquire(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic32 Release_CompareAndSwap(volatile Atomic32 *ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value; do { if (OSAtomicCompareAndSwap32Release(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } #ifdef __PPC64__ // 64-bit Versions. static inline Atomic64 OSAtomicAdd64(Atomic64 amount, Atomic64 *value) { Atomic64 t; __asm__ __volatile__( "1: ldarx %0,0,%3\n\ add %0,%2,%0\n\ stdcx. %0,0,%3 \n\ bne- 1b" : "=&r" (t), "+m" (*value) : "r" (amount), "r" (value) : "cc"); return t; } static inline Atomic64 OSAtomicAdd64Barrier(Atomic64 amount, Atomic64 *value) { Atomic64 t; _lwsync(); t = OSAtomicAdd64(amount, value); // This is based on the code snippet in the architecture manual (Vol // 2, Appendix B). It's a little tricky: correctness depends on the // fact that the code right before this (in OSAtomicAdd64) has a // conditional branch with a data dependency on the update. // Otherwise, we'd have to use sync. _isync(); return t; } static inline bool OSAtomicCompareAndSwap64(Atomic64 old_value, Atomic64 new_value, Atomic64 *value) { Atomic64 prev; __asm__ __volatile__( "1: ldarx %0,0,%2\n\ cmpd 0,%0,%3\n\ bne- 2f\n\ stdcx. %4,0,%2\n\ bne- 1b\n\ 2:" : "=&r" (prev), "+m" (*value) : "r" (value), "r" (old_value), "r" (new_value) : "cc"); return prev == old_value; } static inline Atomic64 OSAtomicCompareAndSwap64Acquire(Atomic64 old_value, Atomic64 new_value, Atomic64 *value) { Atomic64 t; t = OSAtomicCompareAndSwap64(old_value, new_value, value); // This is based on the code snippet in the architecture manual (Vol // 2, Appendix B). It's a little tricky: correctness depends on the // fact that the code right before this (in // OSAtomicCompareAndSwap64) has a conditional branch with a data // dependency on the update. Otherwise, we'd have to use sync. _isync(); return t; } static inline Atomic64 OSAtomicCompareAndSwap64Release(Atomic64 old_value, Atomic64 new_value, Atomic64 *value) { _lwsync(); return OSAtomicCompareAndSwap64(old_value, new_value, value); } inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64 *ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value; do { if (OSAtomicCompareAndSwap64(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64 *ptr, Atomic64 new_value) { Atomic64 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap64(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64 *ptr, Atomic64 new_value) { Atomic64 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap64Acquire(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic64 Release_AtomicExchange(volatile Atomic64 *ptr, Atomic64 new_value) { Atomic64 old_value; do { old_value = *ptr; } while (!OSAtomicCompareAndSwap64Release(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64 *ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value; do { if (OSAtomicCompareAndSwap64Acquire(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic64 Release_CompareAndSwap(volatile Atomic64 *ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value; do { if (OSAtomicCompareAndSwap64Release(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } #endif inline void NoBarrier_Store(volatile Atomic32 *ptr, Atomic32 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic32 *ptr, Atomic32 value) { *ptr = value; // This can't be _lwsync(); we need to order the immediately // preceding stores against any load that may follow, but lwsync // doesn't guarantee that. _sync(); } inline void Release_Store(volatile Atomic32 *ptr, Atomic32 value) { _lwsync(); *ptr = value; } inline Atomic32 NoBarrier_Load(volatile const Atomic32 *ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32 *ptr) { Atomic32 value = *ptr; _lwsync(); return value; } inline Atomic32 Release_Load(volatile const Atomic32 *ptr) { // This can't be _lwsync(); we need to order the immediately // preceding stores against any load that may follow, but lwsync // doesn't guarantee that. _sync(); return *ptr; } #ifdef __PPC64__ // 64-bit Versions. inline void NoBarrier_Store(volatile Atomic64 *ptr, Atomic64 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic64 *ptr, Atomic64 value) { *ptr = value; // This can't be _lwsync(); we need to order the immediately // preceding stores against any load that may follow, but lwsync // doesn't guarantee that. _sync(); } inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) { _lwsync(); *ptr = value; } inline Atomic64 NoBarrier_Load(volatile const Atomic64 *ptr) { return *ptr; } inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) { Atomic64 value = *ptr; _lwsync(); return value; } inline Atomic64 Release_Load(volatile const Atomic64 *ptr) { // This can't be _lwsync(); we need to order the immediately // preceding stores against any load that may follow, but lwsync // doesn't guarantee that. _sync(); return *ptr; } #endif } // namespace base::subtle } // namespace base #endif // BASE_ATOMICOPS_INTERNALS_LINUXPPC_H_ gperftools-2.4/src/base/atomicops-internals-windows.h0000644000000000000000000004130212440704174017772 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat */ // Implementation of atomic operations using Windows API // functions. This file should not be included directly. Clients // should instead include "base/atomicops.h". #ifndef BASE_ATOMICOPS_INTERNALS_WINDOWS_H_ #define BASE_ATOMICOPS_INTERNALS_WINDOWS_H_ #include #include #include "base/basictypes.h" // For COMPILE_ASSERT typedef int32 Atomic32; #if defined(_WIN64) #define BASE_HAS_ATOMIC64 1 // Use only in tests and base/atomic* #endif namespace base { namespace subtle { typedef int64 Atomic64; // 32-bit low-level operations on any platform extern "C" { // We use windows intrinsics when we can (they seem to be supported // well on MSVC 8.0 and above). Unfortunately, in some // environments, and have conflicting // declarations of some other intrinsics, breaking compilation: // http://connect.microsoft.com/VisualStudio/feedback/details/262047 // Therefore, we simply declare the relevant intrinsics ourself. // MinGW has a bug in the header files where it doesn't indicate the // first argument is volatile -- they're not up to date. See // http://readlist.com/lists/lists.sourceforge.net/mingw-users/0/3861.html // We have to const_cast away the volatile to avoid compiler warnings. // TODO(csilvers): remove this once MinGW has updated MinGW/include/winbase.h #if defined(__MINGW32__) inline LONG FastInterlockedCompareExchange(volatile LONG* ptr, LONG newval, LONG oldval) { return ::InterlockedCompareExchange(const_cast(ptr), newval, oldval); } inline LONG FastInterlockedExchange(volatile LONG* ptr, LONG newval) { return ::InterlockedExchange(const_cast(ptr), newval); } inline LONG FastInterlockedExchangeAdd(volatile LONG* ptr, LONG increment) { return ::InterlockedExchangeAdd(const_cast(ptr), increment); } #elif _MSC_VER >= 1400 // intrinsics didn't work so well before MSVC 8.0 // Unfortunately, in some environments, and // have conflicting declarations of some intrinsics, breaking // compilation. So we declare the intrinsics we need ourselves. See // http://connect.microsoft.com/VisualStudio/feedback/details/262047 LONG _InterlockedCompareExchange(volatile LONG* ptr, LONG newval, LONG oldval); #pragma intrinsic(_InterlockedCompareExchange) inline LONG FastInterlockedCompareExchange(volatile LONG* ptr, LONG newval, LONG oldval) { return _InterlockedCompareExchange(ptr, newval, oldval); } LONG _InterlockedExchange(volatile LONG* ptr, LONG newval); #pragma intrinsic(_InterlockedExchange) inline LONG FastInterlockedExchange(volatile LONG* ptr, LONG newval) { return _InterlockedExchange(ptr, newval); } LONG _InterlockedExchangeAdd(volatile LONG* ptr, LONG increment); #pragma intrinsic(_InterlockedExchangeAdd) inline LONG FastInterlockedExchangeAdd(volatile LONG* ptr, LONG increment) { return _InterlockedExchangeAdd(ptr, increment); } #else inline LONG FastInterlockedCompareExchange(volatile LONG* ptr, LONG newval, LONG oldval) { return ::InterlockedCompareExchange(ptr, newval, oldval); } inline LONG FastInterlockedExchange(volatile LONG* ptr, LONG newval) { return ::InterlockedExchange(ptr, newval); } inline LONG FastInterlockedExchangeAdd(volatile LONG* ptr, LONG increment) { return ::InterlockedExchangeAdd(ptr, increment); } #endif // ifdef __MINGW32__ } // extern "C" inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { LONG result = FastInterlockedCompareExchange( reinterpret_cast(ptr), static_cast(new_value), static_cast(old_value)); return static_cast(result); } inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { LONG result = FastInterlockedExchange( reinterpret_cast(ptr), static_cast(new_value)); return static_cast(result); } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { // FastInterlockedExchange has both acquire and release memory barriers. return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { // FastInterlockedExchange has both acquire and release memory barriers. return NoBarrier_AtomicExchange(ptr, new_value); } } // namespace base::subtle } // namespace base // In msvc8/vs2005, winnt.h already contains a definition for // MemoryBarrier in the global namespace. Add it there for earlier // versions and forward to it from within the namespace. #if !(defined(_MSC_VER) && _MSC_VER >= 1400) inline void MemoryBarrier() { Atomic32 value = 0; base::subtle::NoBarrier_AtomicExchange(&value, 0); // actually acts as a barrier in thisd implementation } #endif namespace base { namespace subtle { inline void MemoryBarrier() { ::MemoryBarrier(); } inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { Acquire_AtomicExchange(ptr, value); } inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; // works w/o barrier for current Intel chips as of June 2005 // See comments in Atomic64 version of Release_Store() below. } inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { Atomic32 value = *ptr; return value; } inline Atomic32 Release_Load(volatile const Atomic32* ptr) { MemoryBarrier(); return *ptr; } // 64-bit operations #if defined(_WIN64) || defined(__MINGW64__) // 64-bit low-level operations on 64-bit platform. COMPILE_ASSERT(sizeof(Atomic64) == sizeof(PVOID), atomic_word_is_atomic); // These are the intrinsics needed for 64-bit operations. Similar to the // 32-bit case above. extern "C" { #if defined(__MINGW64__) inline PVOID FastInterlockedCompareExchangePointer(volatile PVOID* ptr, PVOID newval, PVOID oldval) { return ::InterlockedCompareExchangePointer(const_cast(ptr), newval, oldval); } inline PVOID FastInterlockedExchangePointer(volatile PVOID* ptr, PVOID newval) { return ::InterlockedExchangePointer(const_cast(ptr), newval); } inline LONGLONG FastInterlockedExchangeAdd64(volatile LONGLONG* ptr, LONGLONG increment) { return ::InterlockedExchangeAdd64(const_cast(ptr), increment); } #elif _MSC_VER >= 1400 // intrinsics didn't work so well before MSVC 8.0 // Like above, we need to declare the intrinsics ourselves. PVOID _InterlockedCompareExchangePointer(volatile PVOID* ptr, PVOID newval, PVOID oldval); #pragma intrinsic(_InterlockedCompareExchangePointer) inline PVOID FastInterlockedCompareExchangePointer(volatile PVOID* ptr, PVOID newval, PVOID oldval) { return _InterlockedCompareExchangePointer(const_cast(ptr), newval, oldval); } PVOID _InterlockedExchangePointer(volatile PVOID* ptr, PVOID newval); #pragma intrinsic(_InterlockedExchangePointer) inline PVOID FastInterlockedExchangePointer(volatile PVOID* ptr, PVOID newval) { return _InterlockedExchangePointer(const_cast(ptr), newval); } LONGLONG _InterlockedExchangeAdd64(volatile LONGLONG* ptr, LONGLONG increment); #pragma intrinsic(_InterlockedExchangeAdd64) inline LONGLONG FastInterlockedExchangeAdd64(volatile LONGLONG* ptr, LONGLONG increment) { return _InterlockedExchangeAdd64(const_cast(ptr), increment); } #else inline PVOID FastInterlockedCompareExchangePointer(volatile PVOID* ptr, PVOID newval, PVOID oldval) { return ::InterlockedCompareExchangePointer(ptr, newval, oldval); } inline PVOID FastInterlockedExchangePointer(volatile PVOID* ptr, PVOID newval) { return ::InterlockedExchangePointer(ptr, newval); } inline LONGLONG FastInterlockedExchangeAdd64(volatile LONGLONG* ptr, LONGLONG increment) { return ::InterlockedExchangeAdd64(ptr, increment); } #endif // ifdef __MINGW64__ } // extern "C" inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { PVOID result = FastInterlockedCompareExchangePointer( reinterpret_cast(ptr), reinterpret_cast(new_value), reinterpret_cast(old_value)); return reinterpret_cast(result); } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { PVOID result = FastInterlockedExchangePointer( reinterpret_cast(ptr), reinterpret_cast(new_value)); return reinterpret_cast(result); } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { NoBarrier_AtomicExchange(ptr, value); // acts as a barrier in this implementation } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; // works w/o barrier for current Intel chips as of June 2005 // When new chips come out, check: // IA-32 Intel Architecture Software Developer's Manual, Volume 3: // System Programming Guide, Chatper 7: Multiple-processor management, // Section 7.2, Memory Ordering. // Last seen at: // http://developer.intel.com/design/pentium4/manuals/index_new.htm } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { return *ptr; } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { Atomic64 value = *ptr; return value; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { MemoryBarrier(); return *ptr; } #else // defined(_WIN64) || defined(__MINGW64__) // 64-bit low-level operations on 32-bit platform // TODO(vchen): The GNU assembly below must be converted to MSVC inline // assembly. Then the file should be renamed to ...-x86-msvc.h, probably. inline void NotImplementedFatalError(const char *function_name) { fprintf(stderr, "64-bit %s() not implemented on this platform\n", function_name); abort(); } inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { #if 0 // Not implemented Atomic64 prev; __asm__ __volatile__("movl (%3), %%ebx\n\t" // Move 64-bit new_value into "movl 4(%3), %%ecx\n\t" // ecx:ebx "lock; cmpxchg8b %1\n\t" // If edx:eax (old_value) same : "=A" (prev) // as contents of ptr: : "m" (*ptr), // ecx:ebx => ptr "0" (old_value), // else: "r" (&new_value) // old *ptr => edx:eax : "memory", "%ebx", "%ecx"); return prev; #else NotImplementedFatalError("NoBarrier_CompareAndSwap"); return 0; #endif } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { #if 0 // Not implemented __asm__ __volatile__( "movl (%2), %%ebx\n\t" // Move 64-bit new_value into "movl 4(%2), %%ecx\n\t" // ecx:ebx "0:\n\t" "movl %1, %%eax\n\t" // Read contents of ptr into "movl 4%1, %%edx\n\t" // edx:eax "lock; cmpxchg8b %1\n\t" // Attempt cmpxchg; if *ptr "jnz 0b\n\t" // is no longer edx:eax, loop : "=A" (new_value) : "m" (*ptr), "r" (&new_value) : "memory", "%ebx", "%ecx"); return new_value; // Now it's the previous value. #else NotImplementedFatalError("NoBarrier_AtomicExchange"); return 0; #endif } inline void NoBarrier_Store(volatile Atomic64* ptrValue, Atomic64 value) { __asm { movq mm0, value; // Use mmx reg for 64-bit atomic moves mov eax, ptrValue; movq [eax], mm0; emms; // Empty mmx state to enable FP registers } } inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { NoBarrier_AtomicExchange(ptr, value); // acts as a barrier in this implementation } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { NoBarrier_Store(ptr, value); } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptrValue) { Atomic64 value; __asm { mov eax, ptrValue; movq mm0, [eax]; // Use mmx reg for 64-bit atomic moves movq value, mm0; emms; // Empty mmx state to enable FP registers } return value; } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { Atomic64 value = NoBarrier_Load(ptr); return value; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { MemoryBarrier(); return NoBarrier_Load(ptr); } #endif // defined(_WIN64) || defined(__MINGW64__) inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { // FastInterlockedExchange has both acquire and release memory barriers. return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { // FastInterlockedExchange has both acquire and release memory barriers. return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } } // namespace base::subtle } // namespace base #endif // BASE_ATOMICOPS_INTERNALS_WINDOWS_H_ gperftools-2.4/src/base/atomicops-internals-x86.h0000644000000000000000000003324712450132572016734 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat */ // Implementation of atomic operations for x86. This file should not // be included directly. Clients should instead include // "base/atomicops.h". #ifndef BASE_ATOMICOPS_INTERNALS_X86_H_ #define BASE_ATOMICOPS_INTERNALS_X86_H_ #include "base/basictypes.h" typedef int32_t Atomic32; #define BASE_HAS_ATOMIC64 1 // Use only in tests and base/atomic* // NOTE(vchen): x86 does not need to define AtomicWordCastType, because it // already matches Atomic32 or Atomic64, depending on the platform. // This struct is not part of the public API of this module; clients may not // use it. // Features of this x86. Values may not be correct before main() is run, // but are set conservatively. struct AtomicOps_x86CPUFeatureStruct { bool has_sse2; // Processor has SSE2. bool has_cmpxchg16b; // Processor supports cmpxchg16b instruction. }; ATTRIBUTE_VISIBILITY_HIDDEN extern struct AtomicOps_x86CPUFeatureStruct AtomicOps_Internalx86CPUFeatures; #define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory") namespace base { namespace subtle { typedef int64_t Atomic64; // 32-bit low-level operations on any platform. inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev; __asm__ __volatile__("lock; cmpxchgl %1,%2" : "=a" (prev) : "q" (new_value), "m" (*ptr), "0" (old_value) : "memory"); return prev; } inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { __asm__ __volatile__("xchgl %1,%0" // The lock prefix is implicit for xchg. : "=r" (new_value) : "m" (*ptr), "0" (new_value) : "memory"); return new_value; // Now it's the previous value. } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { Atomic32 old_val = NoBarrier_AtomicExchange(ptr, new_value); return old_val; } inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { // xchgl already has release memory barrier semantics. return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 x = NoBarrier_CompareAndSwap(ptr, old_value, new_value); return x; } inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; } #if defined(__x86_64__) // 64-bit implementations of memory barrier can be simpler, because it // "mfence" is guaranteed to exist. inline void MemoryBarrier() { __asm__ __volatile__("mfence" : : : "memory"); } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; MemoryBarrier(); } #else inline void MemoryBarrier() { if (AtomicOps_Internalx86CPUFeatures.has_sse2) { __asm__ __volatile__("mfence" : : : "memory"); } else { // mfence is faster but not present on PIII Atomic32 x = 0; Acquire_AtomicExchange(&x, 0); } } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { if (AtomicOps_Internalx86CPUFeatures.has_sse2) { *ptr = value; __asm__ __volatile__("mfence" : : : "memory"); } else { Acquire_AtomicExchange(ptr, value); } } #endif inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { ATOMICOPS_COMPILER_BARRIER(); *ptr = value; // An x86 store acts as a release barrier. // See comments in Atomic64 version of Release_Store(), below. } inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { Atomic32 value = *ptr; // An x86 load acts as a acquire barrier. // See comments in Atomic64 version of Release_Store(), below. ATOMICOPS_COMPILER_BARRIER(); return value; } inline Atomic32 Release_Load(volatile const Atomic32* ptr) { MemoryBarrier(); return *ptr; } #if defined(__x86_64__) // 64-bit low-level operations on 64-bit platform. inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev; __asm__ __volatile__("lock; cmpxchgq %1,%2" : "=a" (prev) : "q" (new_value), "m" (*ptr), "0" (old_value) : "memory"); return prev; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { __asm__ __volatile__("xchgq %1,%0" // The lock prefix is implicit for xchg. : "=r" (new_value) : "m" (*ptr), "0" (new_value) : "memory"); return new_value; // Now it's the previous value. } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { Atomic64 old_val = NoBarrier_AtomicExchange(ptr, new_value); return old_val; } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { // xchgq already has release memory barrier semantics. return NoBarrier_AtomicExchange(ptr, new_value); } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { ATOMICOPS_COMPILER_BARRIER(); *ptr = value; // An x86 store acts as a release barrier // for current AMD/Intel chips as of Jan 2008. // See also Acquire_Load(), below. // When new chips come out, check: // IA-32 Intel Architecture Software Developer's Manual, Volume 3: // System Programming Guide, Chatper 7: Multiple-processor management, // Section 7.2, Memory Ordering. // Last seen at: // http://developer.intel.com/design/pentium4/manuals/index_new.htm // // x86 stores/loads fail to act as barriers for a few instructions (clflush // maskmovdqu maskmovq movntdq movnti movntpd movntps movntq) but these are // not generated by the compiler, and are rare. Users of these instructions // need to know about cache behaviour in any case since all of these involve // either flushing cache lines or non-temporal cache hints. } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { return *ptr; } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { Atomic64 value = *ptr; // An x86 load acts as a acquire barrier, // for current AMD/Intel chips as of Jan 2008. // See also Release_Store(), above. ATOMICOPS_COMPILER_BARRIER(); return value; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { MemoryBarrier(); return *ptr; } #else // defined(__x86_64__) // 64-bit low-level operations on 32-bit platform. #if !((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) // For compilers older than gcc 4.1, we use inline asm. // // Potential pitfalls: // // 1. %ebx points to Global offset table (GOT) with -fPIC. // We need to preserve this register. // 2. When explicit registers are used in inline asm, the // compiler may not be aware of it and might try to reuse // the same register for another argument which has constraints // that allow it ("r" for example). inline Atomic64 __sync_val_compare_and_swap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev; __asm__ __volatile__("push %%ebx\n\t" "movl (%3), %%ebx\n\t" // Move 64-bit new_value into "movl 4(%3), %%ecx\n\t" // ecx:ebx "lock; cmpxchg8b (%1)\n\t"// If edx:eax (old_value) same "pop %%ebx\n\t" : "=A" (prev) // as contents of ptr: : "D" (ptr), // ecx:ebx => ptr "0" (old_value), // else: "S" (&new_value) // old *ptr => edx:eax : "memory", "%ecx"); return prev; } #endif // Compiler < gcc-4.1 inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_val, Atomic64 new_val) { return __sync_val_compare_and_swap(ptr, old_val, new_val); } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_val) { Atomic64 old_val; do { old_val = *ptr; } while (__sync_val_compare_and_swap(ptr, old_val, new_val) != old_val); return old_val; } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_val) { Atomic64 old_val = NoBarrier_AtomicExchange(ptr, new_val); return old_val; } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_val) { return NoBarrier_AtomicExchange(ptr, new_val); } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { __asm__ __volatile__("movq %1, %%mm0\n\t" // Use mmx reg for 64-bit atomic "movq %%mm0, %0\n\t" // moves (ptr could be read-only) "emms\n\t" // Empty mmx state/Reset FP regs : "=m" (*ptr) : "m" (value) : // mark the FP stack and mmx registers as clobbered "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)", "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7"); } inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { NoBarrier_Store(ptr, value); MemoryBarrier(); } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { ATOMICOPS_COMPILER_BARRIER(); NoBarrier_Store(ptr, value); } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { Atomic64 value; __asm__ __volatile__("movq %1, %%mm0\n\t" // Use mmx reg for 64-bit atomic "movq %%mm0, %0\n\t" // moves (ptr could be read-only) "emms\n\t" // Empty mmx state/Reset FP regs : "=m" (value) : "m" (*ptr) : // mark the FP stack and mmx registers as clobbered "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)", "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7"); return value; } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { Atomic64 value = NoBarrier_Load(ptr); ATOMICOPS_COMPILER_BARRIER(); return value; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { MemoryBarrier(); return NoBarrier_Load(ptr); } #endif // defined(__x86_64__) inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 x = NoBarrier_CompareAndSwap(ptr, old_value, new_value); return x; } inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } } // namespace base::subtle } // namespace base #undef ATOMICOPS_COMPILER_BARRIER #endif // BASE_ATOMICOPS_INTERNALS_X86_H_ gperftools-2.4/src/base/spinlock_win32-inl.h0000644000000000000000000000402412440704174015733 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2009, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * This file is a Win32-specific part of spinlock_internal.cc */ #include namespace base { namespace internal { void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop) { if (loop == 0) { } else if (loop == 1) { Sleep(0); } else { Sleep(base::internal::SuggestedDelayNS(loop) / 1000000); } } void SpinLockWake(volatile Atomic32 *w, bool all) { } } // namespace internal } // namespace base gperftools-2.4/src/base/spinlock_linux-inl.h0000644000000000000000000000674312440704174016142 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2009, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * This file is a Linux-specific part of spinlock_internal.cc */ #include #include #include #include #include "base/linux_syscall_support.h" #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 #define FUTEX_PRIVATE_FLAG 128 static bool have_futex; static int futex_private_flag = FUTEX_PRIVATE_FLAG; namespace { static struct InitModule { InitModule() { int x = 0; // futexes are ints, so we can use them only when // that's the same size as the lockword_ in SpinLock. #ifdef __arm__ // ARM linux doesn't support sys_futex1(void*, int, int, struct timespec*); have_futex = 0; #else have_futex = (sizeof (Atomic32) == sizeof (int) && sys_futex(&x, FUTEX_WAKE, 1, 0) >= 0); #endif if (have_futex && sys_futex(&x, FUTEX_WAKE | futex_private_flag, 1, 0) < 0) { futex_private_flag = 0; } } } init_module; } // anonymous namespace namespace base { namespace internal { void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop) { if (loop != 0) { int save_errno = errno; struct timespec tm; tm.tv_sec = 0; if (have_futex) { tm.tv_nsec = base::internal::SuggestedDelayNS(loop); } else { tm.tv_nsec = 2000001; // above 2ms so linux 2.4 doesn't spin } if (have_futex) { tm.tv_nsec *= 16; // increase the delay; we expect explicit wakeups sys_futex(reinterpret_cast(const_cast(w)), FUTEX_WAIT | futex_private_flag, value, reinterpret_cast(&tm)); } else { nanosleep(&tm, NULL); } errno = save_errno; } } void SpinLockWake(volatile Atomic32 *w, bool all) { if (have_futex) { sys_futex(reinterpret_cast(const_cast(w)), FUTEX_WAKE | futex_private_flag, all? INT_MAX : 1, 0); } } } // namespace internal } // namespace base gperftools-2.4/src/base/spinlock_posix-inl.h0000644000000000000000000000442412440704174016137 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2009, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * This file is a Posix-specific part of spinlock_internal.cc */ #include #include #ifdef HAVE_SCHED_H #include /* For sched_yield() */ #endif #include /* For nanosleep() */ namespace base { namespace internal { void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop) { int save_errno = errno; if (loop == 0) { } else if (loop == 1) { sched_yield(); } else { struct timespec tm; tm.tv_sec = 0; tm.tv_nsec = base::internal::SuggestedDelayNS(loop); nanosleep(&tm, NULL); } errno = save_errno; } void SpinLockWake(volatile Atomic32 *w, bool all) { } } // namespace internal } // namespace base gperftools-2.4/src/base/synchronization_profiling.h0000644000000000000000000000445212440704174017626 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2010, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Chris Ruemmler */ #ifndef BASE_AUXILIARY_SYNCHRONIZATION_PROFILING_H_ #define BASE_AUXILIARY_SYNCHRONIZATION_PROFILING_H_ #include "base/basictypes.h" namespace base { // We can do contention-profiling of SpinLocks, but the code is in // mutex.cc, which is not always linked in with spinlock. Hence we // provide a weak definition, which are used if mutex.cc isn't linked in. // Submit the number of cycles the spinlock spent contending. ATTRIBUTE_WEAK extern void SubmitSpinLockProfileData(const void *, int64); extern void SubmitSpinLockProfileData(const void *contendedlock, int64 wait_cycles) {} } #endif // BASE_AUXILIARY_SYNCHRONIZATION_PROFILING_H_ gperftools-2.4/src/base/atomicops-internals-arm-generic.h0000644000000000000000000001734612440704174020504 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2003, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // // Author: Lei Zhang, Sasha Levitskiy // // This file is an internal atomic implementation, use base/atomicops.h instead. // // LinuxKernelCmpxchg is from Google Gears. #ifndef BASE_ATOMICOPS_INTERNALS_ARM_GENERIC_H_ #define BASE_ATOMICOPS_INTERNALS_ARM_GENERIC_H_ #include #include #include "base/basictypes.h" typedef int32_t Atomic32; namespace base { namespace subtle { typedef int64_t Atomic64; // 0xffff0fc0 is the hard coded address of a function provided by // the kernel which implements an atomic compare-exchange. On older // ARM architecture revisions (pre-v6) this may be implemented using // a syscall. This address is stable, and in active use (hard coded) // by at least glibc-2.7 and the Android C library. // pLinuxKernelCmpxchg has both acquire and release barrier sematincs. typedef Atomic32 (*LinuxKernelCmpxchgFunc)(Atomic32 old_value, Atomic32 new_value, volatile Atomic32* ptr); LinuxKernelCmpxchgFunc pLinuxKernelCmpxchg ATTRIBUTE_WEAK = (LinuxKernelCmpxchgFunc) 0xffff0fc0; typedef void (*LinuxKernelMemoryBarrierFunc)(void); LinuxKernelMemoryBarrierFunc pLinuxKernelMemoryBarrier ATTRIBUTE_WEAK = (LinuxKernelMemoryBarrierFunc) 0xffff0fa0; inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value = *ptr; do { if (!pLinuxKernelCmpxchg(old_value, new_value, const_cast(ptr))) { return old_value; } prev_value = *ptr; } while (prev_value == old_value); return prev_value; } inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { Atomic32 old_value; do { old_value = *ptr; } while (pLinuxKernelCmpxchg(old_value, new_value, const_cast(ptr))); return old_value; } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { // pLinuxKernelCmpxchg already has acquire and release barrier semantics. return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { // pLinuxKernelCmpxchg already has acquire and release barrier semantics. return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; } inline void MemoryBarrier() { pLinuxKernelMemoryBarrier(); } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { MemoryBarrier(); *ptr = value; } inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { Atomic32 value = *ptr; MemoryBarrier(); return value; } inline Atomic32 Release_Load(volatile const Atomic32* ptr) { MemoryBarrier(); return *ptr; } // 64-bit versions are not implemented yet. inline void NotImplementedFatalError(const char *function_name) { fprintf(stderr, "64-bit %s() not implemented on this platform\n", function_name); abort(); } inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { NotImplementedFatalError("NoBarrier_CompareAndSwap"); return 0; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { NotImplementedFatalError("NoBarrier_AtomicExchange"); return 0; } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { // pLinuxKernelCmpxchg already has acquire and release barrier semantics. return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { // pLinuxKernelCmpxchg already has acquire and release barrier semantics. return NoBarrier_AtomicExchange(ptr, new_value); } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { NotImplementedFatalError("NoBarrier_Store"); } inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { NotImplementedFatalError("Acquire_Store64"); } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { NotImplementedFatalError("Release_Store"); } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { NotImplementedFatalError("NoBarrier_Load"); return 0; } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { NotImplementedFatalError("Atomic64 Acquire_Load"); return 0; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { NotImplementedFatalError("Atomic64 Release_Load"); return 0; } inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { NotImplementedFatalError("Atomic64 Acquire_CompareAndSwap"); return 0; } inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { NotImplementedFatalError("Atomic64 Release_CompareAndSwap"); return 0; } } // namespace base::subtle } // namespace base #endif // BASE_ATOMICOPS_INTERNALS_ARM_GENERIC_H_ gperftools-2.4/src/base/atomicops-internals-arm-v6plus.h0000644000000000000000000002406612440704174020324 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // // Author: Sasha Levitskiy // based on atomicops-internals by Sanjay Ghemawat // // This file is an internal atomic implementation, use base/atomicops.h instead. // // This code implements ARM atomics for architectures V6 and newer. #ifndef BASE_ATOMICOPS_INTERNALS_ARM_V6PLUS_H_ #define BASE_ATOMICOPS_INTERNALS_ARM_V6PLUS_H_ #include #include #include "base/basictypes.h" // For COMPILE_ASSERT // The LDREXD and STREXD instructions in ARM all v7 variants or above. In v6, // only some variants support it. For simplicity, we only use exclusive // 64-bit load/store in V7 or above. #if defined(ARMV7) # define BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD #endif typedef int32_t Atomic32; namespace base { namespace subtle { typedef int64_t Atomic64; // 32-bit low-level ops inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 oldval, res; do { __asm__ __volatile__( "ldrex %1, [%3]\n" "mov %0, #0\n" "teq %1, %4\n" // The following IT (if-then) instruction is needed for the subsequent // conditional instruction STREXEQ when compiling in THUMB mode. // In ARM mode, the compiler/assembler will not generate any code for it. "it eq\n" "strexeq %0, %5, [%3]\n" : "=&r" (res), "=&r" (oldval), "+Qo" (*ptr) : "r" (ptr), "Ir" (old_value), "r" (new_value) : "cc"); } while (res); return oldval; } inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { Atomic32 tmp, old; __asm__ __volatile__( "1:\n" "ldrex %1, [%2]\n" "strex %0, %3, [%2]\n" "teq %0, #0\n" "bne 1b" : "=&r" (tmp), "=&r" (old) : "r" (ptr), "r" (new_value) : "cc", "memory"); return old; } inline void MemoryBarrier() { #if !defined(ARMV7) uint32_t dest = 0; __asm__ __volatile__("mcr p15,0,%0,c7,c10,5" :"=&r"(dest) : : "memory"); #else __asm__ __volatile__("dmb" : : : "memory"); #endif } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { Atomic32 old_value = NoBarrier_AtomicExchange(ptr, new_value); MemoryBarrier(); return old_value; } inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { MemoryBarrier(); return NoBarrier_AtomicExchange(ptr, new_value); } inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 value = NoBarrier_CompareAndSwap(ptr, old_value, new_value); MemoryBarrier(); return value; } inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { MemoryBarrier(); return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { MemoryBarrier(); *ptr = value; } inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { Atomic32 value = *ptr; MemoryBarrier(); return value; } inline Atomic32 Release_Load(volatile const Atomic32* ptr) { MemoryBarrier(); return *ptr; } // 64-bit versions are only available if LDREXD and STREXD instructions // are available. #ifdef BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD #define BASE_HAS_ATOMIC64 1 inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 oldval, res; do { __asm__ __volatile__( "ldrexd %1, [%3]\n" "mov %0, #0\n" "teq %Q1, %Q4\n" // The following IT (if-then) instructions are needed for the subsequent // conditional instructions when compiling in THUMB mode. // In ARM mode, the compiler/assembler will not generate any code for it. "it eq\n" "teqeq %R1, %R4\n" "it eq\n" "strexdeq %0, %5, [%3]\n" : "=&r" (res), "=&r" (oldval), "+Q" (*ptr) : "r" (ptr), "Ir" (old_value), "r" (new_value) : "cc"); } while (res); return oldval; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { int store_failed; Atomic64 old; __asm__ __volatile__( "1:\n" "ldrexd %1, [%2]\n" "strexd %0, %3, [%2]\n" "teq %0, #0\n" "bne 1b" : "=&r" (store_failed), "=&r" (old) : "r" (ptr), "r" (new_value) : "cc", "memory"); return old; } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { Atomic64 old_value = NoBarrier_AtomicExchange(ptr, new_value); MemoryBarrier(); return old_value; } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { MemoryBarrier(); return NoBarrier_AtomicExchange(ptr, new_value); } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { int store_failed; Atomic64 dummy; __asm__ __volatile__( "1:\n" // Dummy load to lock cache line. "ldrexd %1, [%3]\n" "strexd %0, %2, [%3]\n" "teq %0, #0\n" "bne 1b" : "=&r" (store_failed), "=&r"(dummy) : "r"(value), "r" (ptr) : "cc", "memory"); } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { Atomic64 res; __asm__ __volatile__( "ldrexd %0, [%1]\n" "clrex\n" : "=r" (res) : "r"(ptr), "Q"(*ptr)); return res; } #else // BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD inline void NotImplementedFatalError(const char *function_name) { fprintf(stderr, "64-bit %s() not implemented on this platform\n", function_name); abort(); } inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { NotImplementedFatalError("NoBarrier_CompareAndSwap"); return 0; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { NotImplementedFatalError("NoBarrier_AtomicExchange"); return 0; } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { NotImplementedFatalError("Acquire_AtomicExchange"); return 0; } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { NotImplementedFatalError("Release_AtomicExchange"); return 0; } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { NotImplementedFatalError("NoBarrier_Store"); } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { NotImplementedFatalError("NoBarrier_Load"); return 0; } #endif // BASE_ATOMICOPS_HAS_LDREXD_AND_STREXD inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { NoBarrier_Store(ptr, value); MemoryBarrier(); } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { MemoryBarrier(); NoBarrier_Store(ptr, value); } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { Atomic64 value = NoBarrier_Load(ptr); MemoryBarrier(); return value; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { MemoryBarrier(); return NoBarrier_Load(ptr); } inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 value = NoBarrier_CompareAndSwap(ptr, old_value, new_value); MemoryBarrier(); return value; } inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { MemoryBarrier(); return NoBarrier_CompareAndSwap(ptr, old_value, new_value); } } // namespace subtle ends } // namespace base ends #endif // BASE_ATOMICOPS_INTERNALS_ARM_V6PLUS_H_ gperftools-2.4/src/base/atomicops-internals-mips.h0000644000000000000000000002342512440704174017256 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2013, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // Author: Jovan Zelincevic // based on atomicops-internals by Sanjay Ghemawat // This file is an internal atomic implementation, use base/atomicops.h instead. // // This code implements MIPS atomics. #ifndef BASE_ATOMICOPS_INTERNALS_MIPS_H_ #define BASE_ATOMICOPS_INTERNALS_MIPS_H_ #if (_MIPS_ISA == _MIPS_ISA_MIPS64) #define BASE_HAS_ATOMIC64 1 #endif typedef int32_t Atomic32; namespace base { namespace subtle { // Atomically execute: // result = *ptr; // if (*ptr == old_value) // *ptr = new_value; // return result; // // I.e., replace "*ptr" with "new_value" if "*ptr" used to be "old_value". // Always return the old value of "*ptr" // // This routine implies no memory barriers. inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev, tmp; __asm__ volatile( ".set push \n" ".set noreorder \n" "1: \n" "ll %0, %5 \n" // prev = *ptr "bne %0, %3, 2f \n" // if (prev != old_value) goto 2 " move %2, %4 \n" // tmp = new_value "sc %2, %1 \n" // *ptr = tmp (with atomic check) "beqz %2, 1b \n" // start again on atomic error " nop \n" // delay slot nop "2: \n" ".set pop \n" : "=&r" (prev), "=m" (*ptr), "=&r" (tmp) : "Ir" (old_value), "r" (new_value), "m" (*ptr) : "memory" ); return prev; } // Atomically store new_value into *ptr, returning the previous value held in // *ptr. This routine implies no memory barriers. inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { Atomic32 temp, old; __asm__ volatile( ".set push \n" ".set noreorder \n" "1: \n" "ll %1, %2 \n" // old = *ptr "move %0, %3 \n" // temp = new_value "sc %0, %2 \n" // *ptr = temp (with atomic check) "beqz %0, 1b \n" // start again on atomic error " nop \n" // delay slot nop ".set pop \n" : "=&r" (temp), "=&r" (old), "=m" (*ptr) : "r" (new_value), "m" (*ptr) : "memory" ); return old; } inline void MemoryBarrier() { __asm__ volatile("sync" : : : "memory"); } // "Acquire" operations // ensure that no later memory access can be reordered ahead of the operation. // "Release" operations ensure that no previous memory access can be reordered // after the operation. "Barrier" operations have both "Acquire" and "Release" // semantics. A MemoryBarrier() has "Barrier" semantics, but does no memory // access. inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value); MemoryBarrier(); return res; } inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { MemoryBarrier(); Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value); return res; } inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { Atomic32 old_value = NoBarrier_AtomicExchange(ptr, new_value); MemoryBarrier(); return old_value; } inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { MemoryBarrier(); return NoBarrier_AtomicExchange(ptr, new_value); } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { MemoryBarrier(); *ptr = value; } inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { Atomic32 value = *ptr; MemoryBarrier(); return value; } inline Atomic32 Release_Load(volatile const Atomic32* ptr) { MemoryBarrier(); return *ptr; } #if (_MIPS_ISA == _MIPS_ISA_MIPS64) || (_MIPS_SIM == _MIPS_SIM_ABI64) typedef int64_t Atomic64; inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev, tmp; __asm__ volatile( ".set push \n" ".set noreorder \n" "1: \n" "lld %0, %5 \n" // prev = *ptr "bne %0, %3, 2f \n" // if (prev != old_value) goto 2 " move %2, %4 \n" // tmp = new_value "scd %2, %1 \n" // *ptr = tmp (with atomic check) "beqz %2, 1b \n" // start again on atomic error " nop \n" // delay slot nop "2: \n" ".set pop \n" : "=&r" (prev), "=m" (*ptr), "=&r" (tmp) : "Ir" (old_value), "r" (new_value), "m" (*ptr) : "memory" ); return prev; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { Atomic64 temp, old; __asm__ volatile( ".set push \n" ".set noreorder \n" "1: \n" "lld %1, %2 \n" // old = *ptr "move %0, %3 \n" // temp = new_value "scd %0, %2 \n" // *ptr = temp (with atomic check) "beqz %0, 1b \n" // start again on atomic error " nop \n" // delay slot nop ".set pop \n" : "=&r" (temp), "=&r" (old), "=m" (*ptr) : "r" (new_value), "m" (*ptr) : "memory" ); return old; } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { Atomic64 old_value = NoBarrier_AtomicExchange(ptr, new_value); MemoryBarrier(); return old_value; } inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value); MemoryBarrier(); return res; } inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { MemoryBarrier(); Atomic64 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value); return res; } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { MemoryBarrier(); return NoBarrier_AtomicExchange(ptr, new_value); } inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { MemoryBarrier(); *ptr = value; } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { return *ptr; } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { Atomic64 value = *ptr; MemoryBarrier(); return value; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { MemoryBarrier(); return *ptr; } #endif } // namespace base::subtle } // namespace base #endif // BASE_ATOMICOPS_INTERNALS_MIPS_H_ gperftools-2.4/src/base/atomicops-internals-gcc.h0000644000000000000000000001533312440704174017041 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2014, Linaro // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // // Author: Riku Voipio, riku.voipio@linaro.org // // atomic primitives implemented with gcc atomic intrinsics: // http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html // #ifndef BASE_ATOMICOPS_INTERNALS_GCC_GENERIC_H_ #define BASE_ATOMICOPS_INTERNALS_GCC_GENERIC_H_ #include #include #include "base/basictypes.h" typedef int32_t Atomic32; namespace base { namespace subtle { typedef int64_t Atomic64; inline void MemoryBarrier() { __sync_synchronize(); } inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value = old_value; __atomic_compare_exchange_n(ptr, &prev_value, new_value, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); return prev_value; } inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELAXED); } inline Atomic32 Acquire_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_ACQUIRE); } inline Atomic32 Release_AtomicExchange(volatile Atomic32* ptr, Atomic32 new_value) { return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELEASE); } inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value = old_value; __atomic_compare_exchange_n(ptr, &prev_value, new_value, 0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED); return prev_value; } inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, Atomic32 old_value, Atomic32 new_value) { Atomic32 prev_value = old_value; __atomic_compare_exchange_n(ptr, &prev_value, new_value, 0, __ATOMIC_RELEASE, __ATOMIC_RELAXED); return prev_value; } inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { MemoryBarrier(); *ptr = value; } inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { return *ptr; } inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { Atomic32 value = *ptr; MemoryBarrier(); return value; } inline Atomic32 Release_Load(volatile const Atomic32* ptr) { MemoryBarrier(); return *ptr; } // 64-bit versions inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value = old_value; __atomic_compare_exchange_n(ptr, &prev_value, new_value, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); return prev_value; } inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELAXED); } inline Atomic64 Acquire_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_ACQUIRE); } inline Atomic64 Release_AtomicExchange(volatile Atomic64* ptr, Atomic64 new_value) { return __atomic_exchange_n(const_cast(ptr), new_value, __ATOMIC_RELEASE); } inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value = old_value; __atomic_compare_exchange_n(ptr, &prev_value, new_value, 0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED); return prev_value; } inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, Atomic64 old_value, Atomic64 new_value) { Atomic64 prev_value = old_value; __atomic_compare_exchange_n(ptr, &prev_value, new_value, 0, __ATOMIC_RELEASE, __ATOMIC_RELAXED); return prev_value; } inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; } inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { *ptr = value; MemoryBarrier(); } inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { MemoryBarrier(); *ptr = value; } inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { return *ptr; } inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { Atomic64 value = *ptr; MemoryBarrier(); return value; } inline Atomic64 Release_Load(volatile const Atomic64* ptr) { MemoryBarrier(); return *ptr; } } // namespace base::subtle } // namespace base #endif // BASE_ATOMICOPS_INTERNALS_GCC_GENERIC_H_ gperftools-2.4/src/base/spinlock.cc0000644000000000000000000002032412440704174014270 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat */ #include #include "base/spinlock.h" #include "base/synchronization_profiling.h" #include "base/spinlock_internal.h" #include "base/cycleclock.h" #include "base/sysinfo.h" /* for NumCPUs() */ // NOTE on the Lock-state values: // // kSpinLockFree represents the unlocked state // kSpinLockHeld represents the locked state with no waiters // // Values greater than kSpinLockHeld represent the locked state with waiters, // where the value is the time the current lock holder had to // wait before obtaining the lock. The kSpinLockSleeper state is a special // "locked with waiters" state that indicates that a sleeper needs to // be woken, but the thread that just released the lock didn't wait. static int adaptive_spin_count = 0; const base::LinkerInitialized SpinLock::LINKER_INITIALIZED = base::LINKER_INITIALIZED; namespace { struct SpinLock_InitHelper { SpinLock_InitHelper() { // On multi-cpu machines, spin for longer before yielding // the processor or sleeping. Reduces idle time significantly. if (NumCPUs() > 1) { adaptive_spin_count = 1000; } } }; // Hook into global constructor execution: // We do not do adaptive spinning before that, // but nothing lock-intensive should be going on at that time. static SpinLock_InitHelper init_helper; } // unnamed namespace // Monitor the lock to see if its value changes within some time period // (adaptive_spin_count loop iterations). A timestamp indicating // when the thread initially started waiting for the lock is passed in via // the initial_wait_timestamp value. The total wait time in cycles for the // lock is returned in the wait_cycles parameter. The last value read // from the lock is returned from the method. Atomic32 SpinLock::SpinLoop(int64 initial_wait_timestamp, Atomic32* wait_cycles) { int c = adaptive_spin_count; while (base::subtle::NoBarrier_Load(&lockword_) != kSpinLockFree && --c > 0) { } Atomic32 spin_loop_wait_cycles = CalculateWaitCycles(initial_wait_timestamp); Atomic32 lock_value = base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockFree, spin_loop_wait_cycles); *wait_cycles = spin_loop_wait_cycles; return lock_value; } void SpinLock::SlowLock() { // The lock was not obtained initially, so this thread needs to wait for // it. Record the current timestamp in the local variable wait_start_time // so the total wait time can be stored in the lockword once this thread // obtains the lock. int64 wait_start_time = CycleClock::Now(); Atomic32 wait_cycles; Atomic32 lock_value = SpinLoop(wait_start_time, &wait_cycles); int lock_wait_call_count = 0; while (lock_value != kSpinLockFree) { // If the lock is currently held, but not marked as having a sleeper, mark // it as having a sleeper. if (lock_value == kSpinLockHeld) { // Here, just "mark" that the thread is going to sleep. Don't store the // lock wait time in the lock as that will cause the current lock // owner to think it experienced contention. lock_value = base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockHeld, kSpinLockSleeper); if (lock_value == kSpinLockHeld) { // Successfully transitioned to kSpinLockSleeper. Pass // kSpinLockSleeper to the SpinLockWait routine to properly indicate // the last lock_value observed. lock_value = kSpinLockSleeper; } else if (lock_value == kSpinLockFree) { // Lock is free again, so try and acquire it before sleeping. The // new lock state will be the number of cycles this thread waited if // this thread obtains the lock. lock_value = base::subtle::Acquire_CompareAndSwap(&lockword_, kSpinLockFree, wait_cycles); continue; // skip the delay at the end of the loop } } // Wait for an OS specific delay. base::internal::SpinLockDelay(&lockword_, lock_value, ++lock_wait_call_count); // Spin again after returning from the wait routine to give this thread // some chance of obtaining the lock. lock_value = SpinLoop(wait_start_time, &wait_cycles); } } // The wait time for contentionz lock profiling must fit into 32 bits. // However, the lower 32-bits of the cycle counter wrap around too quickly // with high frequency processors, so a right-shift by 7 is performed to // quickly divide the cycles by 128. Using these 32 bits, reduces the // granularity of time measurement to 128 cycles, and loses track // of wait time for waits greater than 109 seconds on a 5 GHz machine // [(2^32 cycles/5 Ghz)*128 = 109.95 seconds]. Waits this long should be // very rare and the reduced granularity should not be an issue given // processors in the Google fleet operate at a minimum of one billion // cycles/sec. enum { PROFILE_TIMESTAMP_SHIFT = 7 }; void SpinLock::SlowUnlock(uint64 wait_cycles) { base::internal::SpinLockWake(&lockword_, false); // wake waiter if necessary // Collect contentionz profile info, expanding the wait_cycles back out to // the full value. If wait_cycles is <= kSpinLockSleeper, then no wait // was actually performed, so don't record the wait time. Note, that the // CalculateWaitCycles method adds in kSpinLockSleeper cycles // unconditionally to guarantee the wait time is not kSpinLockFree or // kSpinLockHeld. The adding in of these small number of cycles may // overestimate the contention by a slight amount 50% of the time. However, // if this code tried to correct for that addition by subtracting out the // kSpinLockSleeper amount that would underestimate the contention slightly // 50% of the time. Both ways get the wrong answer, so the code // overestimates to be more conservative. Overestimating also makes the code // a little simpler. // if (wait_cycles > kSpinLockSleeper) { base::SubmitSpinLockProfileData(this, wait_cycles << PROFILE_TIMESTAMP_SHIFT); } } inline int32 SpinLock::CalculateWaitCycles(int64 wait_start_time) { int32 wait_cycles = ((CycleClock::Now() - wait_start_time) >> PROFILE_TIMESTAMP_SHIFT); // The number of cycles waiting for the lock is used as both the // wait_cycles and lock value, so it can't be kSpinLockFree or // kSpinLockHeld. Make sure the value returned is at least // kSpinLockSleeper. wait_cycles |= kSpinLockSleeper; return wait_cycles; } gperftools-2.4/src/base/spinlock_internal.cc0000644000000000000000000001144712440704174016172 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2010, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // The OS-specific header included below must provide two calls: // base::internal::SpinLockDelay() and base::internal::SpinLockWake(). // See spinlock_internal.h for the spec of SpinLockWake(). // void SpinLockDelay(volatile Atomic32 *w, int32 value, int loop) // SpinLockDelay() generates an apprproate spin delay on iteration "loop" of a // spin loop on location *w, whose previously observed value was "value". // SpinLockDelay() may do nothing, may yield the CPU, may sleep a clock tick, // or may wait for a delay that can be truncated by a call to SpinlockWake(w). // In all cases, it must return in bounded time even if SpinlockWake() is not // called. #include "base/spinlock_internal.h" // forward declaration for use by spinlock_*-inl.h namespace base { namespace internal { static int SuggestedDelayNS(int loop); }} #if defined(_WIN32) #include "base/spinlock_win32-inl.h" #elif defined(__linux__) #include "base/spinlock_linux-inl.h" #else #include "base/spinlock_posix-inl.h" #endif namespace base { namespace internal { // See spinlock_internal.h for spec. int32 SpinLockWait(volatile Atomic32 *w, int n, const SpinLockWaitTransition trans[]) { int32 v; bool done = false; for (int loop = 0; !done; loop++) { v = base::subtle::Acquire_Load(w); int i; for (i = 0; i != n && v != trans[i].from; i++) { } if (i == n) { SpinLockDelay(w, v, loop); // no matching transition } else if (trans[i].to == v || // null transition base::subtle::Acquire_CompareAndSwap(w, v, trans[i].to) == v) { done = trans[i].done; } } return v; } // Return a suggested delay in nanoseconds for iteration number "loop" static int SuggestedDelayNS(int loop) { // Weak pseudo-random number generator to get some spread between threads // when many are spinning. #ifdef BASE_HAS_ATOMIC64 static base::subtle::Atomic64 rand; uint64 r = base::subtle::NoBarrier_Load(&rand); r = 0x5deece66dLL * r + 0xb; // numbers from nrand48() base::subtle::NoBarrier_Store(&rand, r); r <<= 16; // 48-bit random number now in top 48-bits. if (loop < 0 || loop > 32) { // limit loop to 0..32 loop = 32; } // loop>>3 cannot exceed 4 because loop cannot exceed 32. // Select top 20..24 bits of lower 48 bits, // giving approximately 0ms to 16ms. // Mean is exponential in loop for first 32 iterations, then 8ms. // The futex path multiplies this by 16, since we expect explicit wakeups // almost always on that path. return r >> (44 - (loop >> 3)); #else static Atomic32 rand; uint32 r = base::subtle::NoBarrier_Load(&rand); r = 0x343fd * r + 0x269ec3; // numbers from MSVC++ base::subtle::NoBarrier_Store(&rand, r); r <<= 1; // 31-bit random number now in top 31-bits. if (loop < 0 || loop > 32) { // limit loop to 0..32 loop = 32; } // loop>>3 cannot exceed 4 because loop cannot exceed 32. // Select top 20..24 bits of lower 31 bits, // giving approximately 0ms to 16ms. // Mean is exponential in loop for first 32 iterations, then 8ms. // The futex path multiplies this by 16, since we expect explicit wakeups // almost always on that path. return r >> (12 - (loop >> 3)); #endif } } // namespace internal } // namespace base gperftools-2.4/src/base/atomicops-internals-x86.cc0000644000000000000000000001025612450132572017065 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * This module gets enough CPU information to optimize the * atomicops module on x86. */ #include "base/atomicops.h" #include "base/basictypes.h" #include "base/googleinit.h" #include "base/logging.h" #include // This file only makes sense with atomicops-internals-x86.h -- it // depends on structs that are defined in that file. If atomicops.h // doesn't sub-include that file, then we aren't needed, and shouldn't // try to do anything. #ifdef BASE_ATOMICOPS_INTERNALS_X86_H_ // Inline cpuid instruction. In PIC compilations, %ebx contains the address // of the global offset table. To avoid breaking such executables, this code // must preserve that register's value across cpuid instructions. #if defined(__i386__) #define cpuid(a, b, c, d, inp) \ asm ("mov %%ebx, %%edi\n" \ "cpuid\n" \ "xchg %%edi, %%ebx\n" \ : "=a" (a), "=D" (b), "=c" (c), "=d" (d) : "a" (inp)) #elif defined (__x86_64__) #define cpuid(a, b, c, d, inp) \ asm ("mov %%rbx, %%rdi\n" \ "cpuid\n" \ "xchg %%rdi, %%rbx\n" \ : "=a" (a), "=D" (b), "=c" (c), "=d" (d) : "a" (inp)) #endif #if defined(cpuid) // initialize the struct only on x86 // Set the flags so that code will run correctly and conservatively // until InitGoogle() is called. struct AtomicOps_x86CPUFeatureStruct AtomicOps_Internalx86CPUFeatures = { false, // no SSE2 false // no cmpxchg16b }; // Initialize the AtomicOps_Internalx86CPUFeatures struct. static void AtomicOps_Internalx86CPUFeaturesInit() { uint32 eax; uint32 ebx; uint32 ecx; uint32 edx; // Get vendor string (issue CPUID with eax = 0) cpuid(eax, ebx, ecx, edx, 0); char vendor[13]; memcpy(vendor, &ebx, 4); memcpy(vendor + 4, &edx, 4); memcpy(vendor + 8, &ecx, 4); vendor[12] = 0; // get feature flags in ecx/edx, and family/model in eax cpuid(eax, ebx, ecx, edx, 1); int family = (eax >> 8) & 0xf; // family and model fields int model = (eax >> 4) & 0xf; if (family == 0xf) { // use extended family and model fields family += (eax >> 20) & 0xff; model += ((eax >> 16) & 0xf) << 4; } // edx bit 26 is SSE2 which we use to tell use whether we can use mfence AtomicOps_Internalx86CPUFeatures.has_sse2 = ((edx >> 26) & 1); // ecx bit 13 indicates whether the cmpxchg16b instruction is supported AtomicOps_Internalx86CPUFeatures.has_cmpxchg16b = ((ecx >> 13) & 1); } REGISTER_MODULE_INITIALIZER(atomicops_x86, { AtomicOps_Internalx86CPUFeaturesInit(); }); #endif #endif /* ifdef BASE_ATOMICOPS_INTERNALS_X86_H_ */ gperftools-2.4/src/base/elf_mem_image.cc0000644000000000000000000003446212440704174015224 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Paul Pluzhnikov // // Allow dynamic symbol lookup in an in-memory Elf image. // #include "base/elf_mem_image.h" #ifdef HAVE_ELF_MEM_IMAGE // defined in elf_mem_image.h #include // for size_t, ptrdiff_t #include "base/logging.h" // From binutils/include/elf/common.h (this doesn't appear to be documented // anywhere else). // // /* This flag appears in a Versym structure. It means that the symbol // is hidden, and is only visible with an explicit version number. // This is a GNU extension. */ // #define VERSYM_HIDDEN 0x8000 // // /* This is the mask for the rest of the Versym information. */ // #define VERSYM_VERSION 0x7fff #define VERSYM_VERSION 0x7fff namespace base { namespace { template class ElfClass { public: static const int kElfClass = -1; static int ElfBind(const ElfW(Sym) *) { CHECK(false); // << "Unexpected word size"; return 0; } static int ElfType(const ElfW(Sym) *) { CHECK(false); // << "Unexpected word size"; return 0; } }; template <> class ElfClass<32> { public: static const int kElfClass = ELFCLASS32; static int ElfBind(const ElfW(Sym) *symbol) { return ELF32_ST_BIND(symbol->st_info); } static int ElfType(const ElfW(Sym) *symbol) { return ELF32_ST_TYPE(symbol->st_info); } }; template <> class ElfClass<64> { public: static const int kElfClass = ELFCLASS64; static int ElfBind(const ElfW(Sym) *symbol) { return ELF64_ST_BIND(symbol->st_info); } static int ElfType(const ElfW(Sym) *symbol) { return ELF64_ST_TYPE(symbol->st_info); } }; typedef ElfClass<__WORDSIZE> CurrentElfClass; // Extract an element from one of the ELF tables, cast it to desired type. // This is just a simple arithmetic and a glorified cast. // Callers are responsible for bounds checking. template const T* GetTableElement(const ElfW(Ehdr) *ehdr, ElfW(Off) table_offset, ElfW(Word) element_size, size_t index) { return reinterpret_cast(reinterpret_cast(ehdr) + table_offset + index * element_size); } } // namespace const void *const ElfMemImage::kInvalidBase = reinterpret_cast(~0L); ElfMemImage::ElfMemImage(const void *base) { CHECK(base != kInvalidBase); Init(base); } int ElfMemImage::GetNumSymbols() const { if (!hash_) { return 0; } // See http://www.caldera.com/developers/gabi/latest/ch5.dynamic.html#hash return hash_[1]; } const ElfW(Sym) *ElfMemImage::GetDynsym(int index) const { CHECK_LT(index, GetNumSymbols()); return dynsym_ + index; } const ElfW(Versym) *ElfMemImage::GetVersym(int index) const { CHECK_LT(index, GetNumSymbols()); return versym_ + index; } const ElfW(Phdr) *ElfMemImage::GetPhdr(int index) const { CHECK_LT(index, ehdr_->e_phnum); return GetTableElement(ehdr_, ehdr_->e_phoff, ehdr_->e_phentsize, index); } const char *ElfMemImage::GetDynstr(ElfW(Word) offset) const { CHECK_LT(offset, strsize_); return dynstr_ + offset; } const void *ElfMemImage::GetSymAddr(const ElfW(Sym) *sym) const { if (sym->st_shndx == SHN_UNDEF || sym->st_shndx >= SHN_LORESERVE) { // Symbol corresponds to "special" (e.g. SHN_ABS) section. return reinterpret_cast(sym->st_value); } CHECK_LT(link_base_, sym->st_value); return GetTableElement(ehdr_, 0, 1, sym->st_value) - link_base_; } const ElfW(Verdef) *ElfMemImage::GetVerdef(int index) const { CHECK_LE(index, verdefnum_); const ElfW(Verdef) *version_definition = verdef_; while (version_definition->vd_ndx < index && version_definition->vd_next) { const char *const version_definition_as_char = reinterpret_cast(version_definition); version_definition = reinterpret_cast(version_definition_as_char + version_definition->vd_next); } return version_definition->vd_ndx == index ? version_definition : NULL; } const ElfW(Verdaux) *ElfMemImage::GetVerdefAux( const ElfW(Verdef) *verdef) const { return reinterpret_cast(verdef+1); } const char *ElfMemImage::GetVerstr(ElfW(Word) offset) const { CHECK_LT(offset, strsize_); return dynstr_ + offset; } void ElfMemImage::Init(const void *base) { ehdr_ = NULL; dynsym_ = NULL; dynstr_ = NULL; versym_ = NULL; verdef_ = NULL; hash_ = NULL; strsize_ = 0; verdefnum_ = 0; link_base_ = ~0L; // Sentinel: PT_LOAD .p_vaddr can't possibly be this. if (!base) { return; } const intptr_t base_as_uintptr_t = reinterpret_cast(base); // Fake VDSO has low bit set. const bool fake_vdso = ((base_as_uintptr_t & 1) != 0); base = reinterpret_cast(base_as_uintptr_t & ~1); const char *const base_as_char = reinterpret_cast(base); if (base_as_char[EI_MAG0] != ELFMAG0 || base_as_char[EI_MAG1] != ELFMAG1 || base_as_char[EI_MAG2] != ELFMAG2 || base_as_char[EI_MAG3] != ELFMAG3) { RAW_DCHECK(false, "no ELF magic"); // at %p", base); return; } int elf_class = base_as_char[EI_CLASS]; if (elf_class != CurrentElfClass::kElfClass) { DCHECK_EQ(elf_class, CurrentElfClass::kElfClass); return; } switch (base_as_char[EI_DATA]) { case ELFDATA2LSB: { if (__LITTLE_ENDIAN != __BYTE_ORDER) { DCHECK_EQ(__LITTLE_ENDIAN, __BYTE_ORDER); // << ": wrong byte order"; return; } break; } case ELFDATA2MSB: { if (__BIG_ENDIAN != __BYTE_ORDER) { DCHECK_EQ(__BIG_ENDIAN, __BYTE_ORDER); // << ": wrong byte order"; return; } break; } default: { RAW_DCHECK(false, "unexpected data encoding"); // << base_as_char[EI_DATA]; return; } } ehdr_ = reinterpret_cast(base); const ElfW(Phdr) *dynamic_program_header = NULL; for (int i = 0; i < ehdr_->e_phnum; ++i) { const ElfW(Phdr) *const program_header = GetPhdr(i); switch (program_header->p_type) { case PT_LOAD: if (link_base_ == ~0L) { link_base_ = program_header->p_vaddr; } break; case PT_DYNAMIC: dynamic_program_header = program_header; break; } } if (link_base_ == ~0L || !dynamic_program_header) { RAW_DCHECK(~0L != link_base_, "no PT_LOADs in VDSO"); RAW_DCHECK(dynamic_program_header, "no PT_DYNAMIC in VDSO"); // Mark this image as not present. Can not recur infinitely. Init(0); return; } ptrdiff_t relocation = base_as_char - reinterpret_cast(link_base_); ElfW(Dyn) *dynamic_entry = reinterpret_cast(dynamic_program_header->p_vaddr + relocation); for (; dynamic_entry->d_tag != DT_NULL; ++dynamic_entry) { ElfW(Xword) value = dynamic_entry->d_un.d_val; if (fake_vdso) { // A complication: in the real VDSO, dynamic entries are not relocated // (it wasn't loaded by a dynamic loader). But when testing with a // "fake" dlopen()ed vdso library, the loader relocates some (but // not all!) of them before we get here. if (dynamic_entry->d_tag == DT_VERDEF) { // The only dynamic entry (of the ones we care about) libc-2.3.6 // loader doesn't relocate. value += relocation; } } else { // Real VDSO. Everything needs to be relocated. value += relocation; } switch (dynamic_entry->d_tag) { case DT_HASH: hash_ = reinterpret_cast(value); break; case DT_SYMTAB: dynsym_ = reinterpret_cast(value); break; case DT_STRTAB: dynstr_ = reinterpret_cast(value); break; case DT_VERSYM: versym_ = reinterpret_cast(value); break; case DT_VERDEF: verdef_ = reinterpret_cast(value); break; case DT_VERDEFNUM: verdefnum_ = dynamic_entry->d_un.d_val; break; case DT_STRSZ: strsize_ = dynamic_entry->d_un.d_val; break; default: // Unrecognized entries explicitly ignored. break; } } if (!hash_ || !dynsym_ || !dynstr_ || !versym_ || !verdef_ || !verdefnum_ || !strsize_) { RAW_DCHECK(hash_, "invalid VDSO (no DT_HASH)"); RAW_DCHECK(dynsym_, "invalid VDSO (no DT_SYMTAB)"); RAW_DCHECK(dynstr_, "invalid VDSO (no DT_STRTAB)"); RAW_DCHECK(versym_, "invalid VDSO (no DT_VERSYM)"); RAW_DCHECK(verdef_, "invalid VDSO (no DT_VERDEF)"); RAW_DCHECK(verdefnum_, "invalid VDSO (no DT_VERDEFNUM)"); RAW_DCHECK(strsize_, "invalid VDSO (no DT_STRSZ)"); // Mark this image as not present. Can not recur infinitely. Init(0); return; } } bool ElfMemImage::LookupSymbol(const char *name, const char *version, int type, SymbolInfo *info) const { for (SymbolIterator it = begin(); it != end(); ++it) { if (strcmp(it->name, name) == 0 && strcmp(it->version, version) == 0 && CurrentElfClass::ElfType(it->symbol) == type) { if (info) { *info = *it; } return true; } } return false; } bool ElfMemImage::LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const { for (SymbolIterator it = begin(); it != end(); ++it) { const char *const symbol_start = reinterpret_cast(it->address); const char *const symbol_end = symbol_start + it->symbol->st_size; if (symbol_start <= address && address < symbol_end) { if (info_out) { // Client wants to know details for that symbol (the usual case). if (CurrentElfClass::ElfBind(it->symbol) == STB_GLOBAL) { // Strong symbol; just return it. *info_out = *it; return true; } else { // Weak or local. Record it, but keep looking for a strong one. *info_out = *it; } } else { // Client only cares if there is an overlapping symbol. return true; } } } return false; } ElfMemImage::SymbolIterator::SymbolIterator(const void *const image, int index) : index_(index), image_(image) { } const ElfMemImage::SymbolInfo *ElfMemImage::SymbolIterator::operator->() const { return &info_; } const ElfMemImage::SymbolInfo& ElfMemImage::SymbolIterator::operator*() const { return info_; } bool ElfMemImage::SymbolIterator::operator==(const SymbolIterator &rhs) const { return this->image_ == rhs.image_ && this->index_ == rhs.index_; } bool ElfMemImage::SymbolIterator::operator!=(const SymbolIterator &rhs) const { return !(*this == rhs); } ElfMemImage::SymbolIterator &ElfMemImage::SymbolIterator::operator++() { this->Update(1); return *this; } ElfMemImage::SymbolIterator ElfMemImage::begin() const { SymbolIterator it(this, 0); it.Update(0); return it; } ElfMemImage::SymbolIterator ElfMemImage::end() const { return SymbolIterator(this, GetNumSymbols()); } void ElfMemImage::SymbolIterator::Update(int increment) { const ElfMemImage *image = reinterpret_cast(image_); CHECK(image->IsPresent() || increment == 0); if (!image->IsPresent()) { return; } index_ += increment; if (index_ >= image->GetNumSymbols()) { index_ = image->GetNumSymbols(); return; } const ElfW(Sym) *symbol = image->GetDynsym(index_); const ElfW(Versym) *version_symbol = image->GetVersym(index_); CHECK(symbol && version_symbol); const char *const symbol_name = image->GetDynstr(symbol->st_name); const ElfW(Versym) version_index = version_symbol[0] & VERSYM_VERSION; const ElfW(Verdef) *version_definition = NULL; const char *version_name = ""; if (symbol->st_shndx == SHN_UNDEF) { // Undefined symbols reference DT_VERNEED, not DT_VERDEF, and // version_index could well be greater than verdefnum_, so calling // GetVerdef(version_index) may trigger assertion. } else { version_definition = image->GetVerdef(version_index); } if (version_definition) { // I am expecting 1 or 2 auxiliary entries: 1 for the version itself, // optional 2nd if the version has a parent. CHECK_LE(1, version_definition->vd_cnt); CHECK_LE(version_definition->vd_cnt, 2); const ElfW(Verdaux) *version_aux = image->GetVerdefAux(version_definition); version_name = image->GetVerstr(version_aux->vda_name); } info_.name = symbol_name; info_.version = version_name; info_.address = image->GetSymAddr(symbol); info_.symbol = symbol; } } // namespace base #endif // HAVE_ELF_MEM_IMAGE gperftools-2.4/src/base/vdso_support.cc0000644000000000000000000001221112440704174015211 00000000000000// Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Paul Pluzhnikov // // Allow dynamic symbol lookup in the kernel VDSO page. // // VDSOSupport -- a class representing kernel VDSO (if present). // #include "base/vdso_support.h" #ifdef HAVE_VDSO_SUPPORT // defined in vdso_support.h #include #include // for ptrdiff_t #include "base/atomicops.h" // for MemoryBarrier #include "base/linux_syscall_support.h" #include "base/logging.h" #include "base/dynamic_annotations.h" #include "base/basictypes.h" // for COMPILE_ASSERT using base::subtle::MemoryBarrier; #ifndef AT_SYSINFO_EHDR #define AT_SYSINFO_EHDR 33 #endif namespace base { const void *VDSOSupport::vdso_base_ = ElfMemImage::kInvalidBase; VDSOSupport::VDSOSupport() // If vdso_base_ is still set to kInvalidBase, we got here // before VDSOSupport::Init has been called. Call it now. : image_(vdso_base_ == ElfMemImage::kInvalidBase ? Init() : vdso_base_) { } // NOTE: we can't use GoogleOnceInit() below, because we can be // called by tcmalloc, and none of the *once* stuff may be functional yet. // // In addition, we hope that the VDSOSupportHelper constructor // causes this code to run before there are any threads, and before // InitGoogle() has executed any chroot or setuid calls. // // Finally, even if there is a race here, it is harmless, because // the operation should be idempotent. const void *VDSOSupport::Init() { if (vdso_base_ == ElfMemImage::kInvalidBase) { // Valgrind zaps AT_SYSINFO_EHDR and friends from the auxv[] // on stack, and so glibc works as if VDSO was not present. // But going directly to kernel via /proc/self/auxv below bypasses // Valgrind zapping. So we check for Valgrind separately. if (RunningOnValgrind()) { vdso_base_ = NULL; return NULL; } int fd = open("/proc/self/auxv", O_RDONLY); if (fd == -1) { // Kernel too old to have a VDSO. vdso_base_ = NULL; return NULL; } ElfW(auxv_t) aux; while (read(fd, &aux, sizeof(aux)) == sizeof(aux)) { if (aux.a_type == AT_SYSINFO_EHDR) { COMPILE_ASSERT(sizeof(vdso_base_) == sizeof(aux.a_un.a_val), unexpected_sizeof_pointer_NE_sizeof_a_val); vdso_base_ = reinterpret_cast(aux.a_un.a_val); break; } } close(fd); if (vdso_base_ == ElfMemImage::kInvalidBase) { // Didn't find AT_SYSINFO_EHDR in auxv[]. vdso_base_ = NULL; } } return vdso_base_; } const void *VDSOSupport::SetBase(const void *base) { CHECK(base != ElfMemImage::kInvalidBase); const void *old_base = vdso_base_; vdso_base_ = base; image_.Init(base); return old_base; } bool VDSOSupport::LookupSymbol(const char *name, const char *version, int type, SymbolInfo *info) const { return image_.LookupSymbol(name, version, type, info); } bool VDSOSupport::LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const { return image_.LookupSymbolByAddress(address, info_out); } // We need to make sure VDSOSupport::Init() is called before // the main() runs, since it might do something like setuid or // chroot. If VDSOSupport // is used in any global constructor, this will happen, since // VDSOSupport's constructor calls Init. But if not, we need to // ensure it here, with a global constructor of our own. This // is an allowed exception to the normal rule against non-trivial // global constructors. static class VDSOInitHelper { public: VDSOInitHelper() { VDSOSupport::Init(); } } vdso_init_helper; } #endif // HAVE_VDSO_SUPPORT gperftools-2.4/src/base/elf_mem_image.h0000644000000000000000000001207312440704174015060 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Paul Pluzhnikov // // Allow dynamic symbol lookup for in-memory Elf images. #ifndef BASE_ELF_MEM_IMAGE_H_ #define BASE_ELF_MEM_IMAGE_H_ #include #ifdef HAVE_FEATURES_H #include // for __GLIBC__ #endif // Maybe one day we can rewrite this file not to require the elf // symbol extensions in glibc, but for right now we need them. #if defined(__ELF__) && defined(__GLIBC__) && !defined(__native_client__) #define HAVE_ELF_MEM_IMAGE 1 #include #include // for ElfW namespace base { // An in-memory ELF image (may not exist on disk). class ElfMemImage { public: // Sentinel: there could never be an elf image at this address. static const void *const kInvalidBase; // Information about a single vdso symbol. // All pointers are into .dynsym, .dynstr, or .text of the VDSO. // Do not free() them or modify through them. struct SymbolInfo { const char *name; // E.g. "__vdso_getcpu" const char *version; // E.g. "LINUX_2.6", could be "" // for unversioned symbol. const void *address; // Relocated symbol address. const ElfW(Sym) *symbol; // Symbol in the dynamic symbol table. }; // Supports iteration over all dynamic symbols. class SymbolIterator { public: friend class ElfMemImage; const SymbolInfo *operator->() const; const SymbolInfo &operator*() const; SymbolIterator& operator++(); bool operator!=(const SymbolIterator &rhs) const; bool operator==(const SymbolIterator &rhs) const; private: SymbolIterator(const void *const image, int index); void Update(int incr); SymbolInfo info_; int index_; const void *const image_; }; explicit ElfMemImage(const void *base); void Init(const void *base); bool IsPresent() const { return ehdr_ != NULL; } const ElfW(Phdr)* GetPhdr(int index) const; const ElfW(Sym)* GetDynsym(int index) const; const ElfW(Versym)* GetVersym(int index) const; const ElfW(Verdef)* GetVerdef(int index) const; const ElfW(Verdaux)* GetVerdefAux(const ElfW(Verdef) *verdef) const; const char* GetDynstr(ElfW(Word) offset) const; const void* GetSymAddr(const ElfW(Sym) *sym) const; const char* GetVerstr(ElfW(Word) offset) const; int GetNumSymbols() const; SymbolIterator begin() const; SymbolIterator end() const; // Look up versioned dynamic symbol in the image. // Returns false if image is not present, or doesn't contain given // symbol/version/type combination. // If info_out != NULL, additional details are filled in. bool LookupSymbol(const char *name, const char *version, int symbol_type, SymbolInfo *info_out) const; // Find info about symbol (if any) which overlaps given address. // Returns true if symbol was found; false if image isn't present // or doesn't have a symbol overlapping given address. // If info_out != NULL, additional details are filled in. bool LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const; private: const ElfW(Ehdr) *ehdr_; const ElfW(Sym) *dynsym_; const ElfW(Versym) *versym_; const ElfW(Verdef) *verdef_; const ElfW(Word) *hash_; const char *dynstr_; size_t strsize_; size_t verdefnum_; ElfW(Addr) link_base_; // Link-time base (p_vaddr of first PT_LOAD). }; } // namespace base #endif // __ELF__ and __GLIBC__ and !__native_client__ #endif // BASE_ELF_MEM_IMAGE_H_ gperftools-2.4/src/base/vdso_support.h0000644000000000000000000001157212440704174015064 00000000000000// Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Paul Pluzhnikov // // Allow dynamic symbol lookup in the kernel VDSO page. // // VDSO stands for "Virtual Dynamic Shared Object" -- a page of // executable code, which looks like a shared library, but doesn't // necessarily exist anywhere on disk, and which gets mmap()ed into // every process by kernels which support VDSO, such as 2.6.x for 32-bit // executables, and 2.6.24 and above for 64-bit executables. // // More details could be found here: // http://www.trilithium.com/johan/2005/08/linux-gate/ // // VDSOSupport -- a class representing kernel VDSO (if present). // // Example usage: // VDSOSupport vdso; // VDSOSupport::SymbolInfo info; // typedef (*FN)(unsigned *, void *, void *); // FN fn = NULL; // if (vdso.LookupSymbol("__vdso_getcpu", "LINUX_2.6", STT_FUNC, &info)) { // fn = reinterpret_cast(info.address); // } #ifndef BASE_VDSO_SUPPORT_H_ #define BASE_VDSO_SUPPORT_H_ #include #include "base/basictypes.h" #include "base/elf_mem_image.h" #ifdef HAVE_ELF_MEM_IMAGE #define HAVE_VDSO_SUPPORT 1 #include // for NULL namespace base { // NOTE: this class may be used from within tcmalloc, and can not // use any memory allocation routines. class VDSOSupport { public: VDSOSupport(); typedef ElfMemImage::SymbolInfo SymbolInfo; typedef ElfMemImage::SymbolIterator SymbolIterator; // Answers whether we have a vdso at all. bool IsPresent() const { return image_.IsPresent(); } // Allow to iterate over all VDSO symbols. SymbolIterator begin() const { return image_.begin(); } SymbolIterator end() const { return image_.end(); } // Look up versioned dynamic symbol in the kernel VDSO. // Returns false if VDSO is not present, or doesn't contain given // symbol/version/type combination. // If info_out != NULL, additional details are filled in. bool LookupSymbol(const char *name, const char *version, int symbol_type, SymbolInfo *info_out) const; // Find info about symbol (if any) which overlaps given address. // Returns true if symbol was found; false if VDSO isn't present // or doesn't have a symbol overlapping given address. // If info_out != NULL, additional details are filled in. bool LookupSymbolByAddress(const void *address, SymbolInfo *info_out) const; // Used only for testing. Replace real VDSO base with a mock. // Returns previous value of vdso_base_. After you are done testing, // you are expected to call SetBase() with previous value, in order to // reset state to the way it was. const void *SetBase(const void *s); // Computes vdso_base_ and returns it. Should be called as early as // possible; before any thread creation, chroot or setuid. static const void *Init(); private: // image_ represents VDSO ELF image in memory. // image_.ehdr_ == NULL implies there is no VDSO. ElfMemImage image_; // Cached value of auxv AT_SYSINFO_EHDR, computed once. // This is a tri-state: // kInvalidBase => value hasn't been determined yet. // 0 => there is no VDSO. // else => vma of VDSO Elf{32,64}_Ehdr. // // When testing with mock VDSO, low bit is set. // The low bit is always available because vdso_base_ is // page-aligned. static const void *vdso_base_; DISALLOW_COPY_AND_ASSIGN(VDSOSupport); }; } // namespace base #endif // HAVE_ELF_MEM_IMAGE #endif // BASE_VDSO_SUPPORT_H_ gperftools-2.4/src/base/sysinfo.cc0000644000000000000000000012705412440704174014150 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2006, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include #if (defined(_WIN32) || defined(__MINGW32__)) && !defined(__CYGWIN__) && !defined(__CYGWIN32) # define PLATFORM_WINDOWS 1 #endif #include // for isspace() #include // for getenv() #include // for snprintf(), sscanf() #include // for memmove(), memchr(), etc. #include // for open() #include // for errno #ifdef HAVE_UNISTD_H #include // for read() #endif #if defined __MACH__ // Mac OS X, almost certainly #include // for iterating over dll's in ProcMapsIter #include // for iterating over dll's in ProcMapsIter #include #include // how we figure out numcpu's on OS X #elif defined __FreeBSD__ #include #elif defined __sun__ // Solaris #include // for, e.g., prmap_t #elif defined(PLATFORM_WINDOWS) #include // for getpid() (actually, _getpid()) #include // for SHGetValueA() #include // for Module32First() #endif #include "base/sysinfo.h" #include "base/commandlineflags.h" #include "base/dynamic_annotations.h" // for RunningOnValgrind #include "base/logging.h" #include "base/cycleclock.h" #ifdef PLATFORM_WINDOWS #ifdef MODULEENTRY32 // In a change from the usual W-A pattern, there is no A variant of // MODULEENTRY32. Tlhelp32.h #defines the W variant, but not the A. // In unicode mode, tlhelp32.h #defines MODULEENTRY32 to be // MODULEENTRY32W. These #undefs are the only way I see to get back // access to the original, ascii struct (and related functions). #undef MODULEENTRY32 #undef Module32First #undef Module32Next #undef PMODULEENTRY32 #undef LPMODULEENTRY32 #endif /* MODULEENTRY32 */ // MinGW doesn't seem to define this, perhaps some windowsen don't either. #ifndef TH32CS_SNAPMODULE32 #define TH32CS_SNAPMODULE32 0 #endif /* TH32CS_SNAPMODULE32 */ #endif /* PLATFORM_WINDOWS */ // Re-run fn until it doesn't cause EINTR. #define NO_INTR(fn) do {} while ((fn) < 0 && errno == EINTR) // open/read/close can set errno, which may be illegal at this // time, so prefer making the syscalls directly if we can. #ifdef HAVE_SYS_SYSCALL_H # include #endif #ifdef SYS_open // solaris 11, at least sometimes, only defines SYS_openat # define safeopen(filename, mode) syscall(SYS_open, filename, mode) #else # define safeopen(filename, mode) open(filename, mode) #endif #ifdef SYS_read # define saferead(fd, buffer, size) syscall(SYS_read, fd, buffer, size) #else # define saferead(fd, buffer, size) read(fd, buffer, size) #endif #ifdef SYS_close # define safeclose(fd) syscall(SYS_close, fd) #else # define safeclose(fd) close(fd) #endif // ---------------------------------------------------------------------- // GetenvBeforeMain() // GetUniquePathFromEnv() // Some non-trivial getenv-related functions. // ---------------------------------------------------------------------- // It's not safe to call getenv() in the malloc hooks, because they // might be called extremely early, before libc is done setting up // correctly. In particular, the thread library may not be done // setting up errno. So instead, we use the built-in __environ array // if it exists, and otherwise read /proc/self/environ directly, using // system calls to read the file, and thus avoid setting errno. // /proc/self/environ has a limit of how much data it exports (around // 8K), so it's not an ideal solution. const char* GetenvBeforeMain(const char* name) { #if defined(HAVE___ENVIRON) // if we have it, it's declared in unistd.h if (__environ) { // can exist but be NULL, if statically linked const int namelen = strlen(name); for (char** p = __environ; *p; p++) { if (strlen(*p) < namelen) { continue; } if (!memcmp(*p, name, namelen) && (*p)[namelen] == '=') // it's a match return *p + namelen+1; // point after = } return NULL; } #endif #if defined(PLATFORM_WINDOWS) // TODO(mbelshe) - repeated calls to this function will overwrite the // contents of the static buffer. static char envvar_buf[1024]; // enough to hold any envvar we care about if (!GetEnvironmentVariableA(name, envvar_buf, sizeof(envvar_buf)-1)) return NULL; return envvar_buf; #endif // static is ok because this function should only be called before // main(), when we're single-threaded. static char envbuf[16<<10]; if (*envbuf == '\0') { // haven't read the environ yet int fd = safeopen("/proc/self/environ", O_RDONLY); // The -2 below guarantees the last two bytes of the buffer will be \0\0 if (fd == -1 || // unable to open the file, fall back onto libc saferead(fd, envbuf, sizeof(envbuf) - 2) < 0) { // error reading file RAW_VLOG(1, "Unable to open /proc/self/environ, falling back " "on getenv(\"%s\"), which may not work", name); if (fd != -1) safeclose(fd); return getenv(name); } safeclose(fd); } const int namelen = strlen(name); const char* p = envbuf; while (*p != '\0') { // will happen at the \0\0 that terminates the buffer // proc file has the format NAME=value\0NAME=value\0NAME=value\0... const char* endp = (char*)memchr(p, '\0', sizeof(envbuf) - (p - envbuf)); if (endp == NULL) // this entry isn't NUL terminated return NULL; else if (!memcmp(p, name, namelen) && p[namelen] == '=') // it's a match return p + namelen+1; // point after = p = endp + 1; } return NULL; // env var never found } extern "C" { const char* TCMallocGetenvSafe(const char* name) { return GetenvBeforeMain(name); } } // This takes as an argument an environment-variable name (like // CPUPROFILE) whose value is supposed to be a file-path, and sets // path to that path, and returns true. If the env var doesn't exist, // or is the empty string, leave path unchanged and returns false. // The reason this is non-trivial is that this function handles munged // pathnames. Here's why: // // If we're a child process of the 'main' process, we can't just use // getenv("CPUPROFILE") -- the parent process will be using that path. // Instead we append our pid to the pathname. How do we tell if we're a // child process? Ideally we'd set an environment variable that all // our children would inherit. But -- and this is seemingly a bug in // gcc -- if you do a setenv() in a shared libarary in a global // constructor, the environment setting is lost by the time main() is // called. The only safe thing we can do in such a situation is to // modify the existing envvar. So we do a hack: in the parent, we set // the high bit of the 1st char of CPUPROFILE. In the child, we // notice the high bit is set and append the pid(). This works // assuming cpuprofile filenames don't normally have the high bit set // in their first character! If that assumption is violated, we'll // still get a profile, but one with an unexpected name. // TODO(csilvers): set an envvar instead when we can do it reliably. bool GetUniquePathFromEnv(const char* env_name, char* path) { char* envval = getenv(env_name); if (envval == NULL || *envval == '\0') return false; if (envval[0] & 128) { // high bit is set snprintf(path, PATH_MAX, "%c%s_%u", // add pid and clear high bit envval[0] & 127, envval+1, (unsigned int)(getpid())); } else { snprintf(path, PATH_MAX, "%s", envval); envval[0] |= 128; // set high bit for kids to see } return true; } // ---------------------------------------------------------------------- // CyclesPerSecond() // NumCPUs() // It's important this not call malloc! -- they may be called at // global-construct time, before we've set up all our proper malloc // hooks and such. // ---------------------------------------------------------------------- static double cpuinfo_cycles_per_second = 1.0; // 0.0 might be dangerous static int cpuinfo_num_cpus = 1; // Conservative guess void SleepForMilliseconds(int milliseconds) { #ifdef PLATFORM_WINDOWS _sleep(milliseconds); // Windows's _sleep takes milliseconds argument #else // Sleep for a few milliseconds struct timespec sleep_time; sleep_time.tv_sec = milliseconds / 1000; sleep_time.tv_nsec = (milliseconds % 1000) * 1000000; while (nanosleep(&sleep_time, &sleep_time) != 0 && errno == EINTR) ; // Ignore signals and wait for the full interval to elapse. #endif } // Helper function estimates cycles/sec by observing cycles elapsed during // sleep(). Using small sleep time decreases accuracy significantly. static int64 EstimateCyclesPerSecond(const int estimate_time_ms) { assert(estimate_time_ms > 0); if (estimate_time_ms <= 0) return 1; double multiplier = 1000.0 / (double)estimate_time_ms; // scale by this much const int64 start_ticks = CycleClock::Now(); SleepForMilliseconds(estimate_time_ms); const int64 guess = int64(multiplier * (CycleClock::Now() - start_ticks)); return guess; } // ReadIntFromFile is only called on linux and cygwin platforms. #if defined(__linux__) || defined(__CYGWIN__) || defined(__CYGWIN32__) // Helper function for reading an int from a file. Returns true if successful // and the memory location pointed to by value is set to the value read. static bool ReadIntFromFile(const char *file, int *value) { bool ret = false; int fd = open(file, O_RDONLY); if (fd != -1) { char line[1024]; char* err; memset(line, '\0', sizeof(line)); read(fd, line, sizeof(line) - 1); const int temp_value = strtol(line, &err, 10); if (line[0] != '\0' && (*err == '\n' || *err == '\0')) { *value = temp_value; ret = true; } close(fd); } return ret; } #endif // WARNING: logging calls back to InitializeSystemInfo() so it must // not invoke any logging code. Also, InitializeSystemInfo() can be // called before main() -- in fact it *must* be since already_called // isn't protected -- before malloc hooks are properly set up, so // we make an effort not to call any routines which might allocate // memory. static void InitializeSystemInfo() { static bool already_called = false; // safe if we run before threads if (already_called) return; already_called = true; bool saw_mhz = false; if (RunningOnValgrind()) { // Valgrind may slow the progress of time artificially (--scale-time=N // option). We thus can't rely on CPU Mhz info stored in /sys or /proc // files. Thus, actually measure the cps. cpuinfo_cycles_per_second = EstimateCyclesPerSecond(100); saw_mhz = true; } #if defined(__linux__) || defined(__CYGWIN__) || defined(__CYGWIN32__) char line[1024]; char* err; int freq; // If the kernel is exporting the tsc frequency use that. There are issues // where cpuinfo_max_freq cannot be relied on because the BIOS may be // exporintg an invalid p-state (on x86) or p-states may be used to put the // processor in a new mode (turbo mode). Essentially, those frequencies // cannot always be relied upon. The same reasons apply to /proc/cpuinfo as // well. if (!saw_mhz && ReadIntFromFile("/sys/devices/system/cpu/cpu0/tsc_freq_khz", &freq)) { // The value is in kHz (as the file name suggests). For example, on a // 2GHz warpstation, the file contains the value "2000000". cpuinfo_cycles_per_second = freq * 1000.0; saw_mhz = true; } // If CPU scaling is in effect, we want to use the *maximum* frequency, // not whatever CPU speed some random processor happens to be using now. if (!saw_mhz && ReadIntFromFile("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq", &freq)) { // The value is in kHz. For example, on a 2GHz machine, the file // contains the value "2000000". cpuinfo_cycles_per_second = freq * 1000.0; saw_mhz = true; } // Read /proc/cpuinfo for other values, and if there is no cpuinfo_max_freq. const char* pname = "/proc/cpuinfo"; int fd = open(pname, O_RDONLY); if (fd == -1) { perror(pname); if (!saw_mhz) { cpuinfo_cycles_per_second = EstimateCyclesPerSecond(1000); } return; // TODO: use generic tester instead? } double bogo_clock = 1.0; bool saw_bogo = false; int num_cpus = 0; line[0] = line[1] = '\0'; int chars_read = 0; do { // we'll exit when the last read didn't read anything // Move the next line to the beginning of the buffer const int oldlinelen = strlen(line); if (sizeof(line) == oldlinelen + 1) // oldlinelen took up entire line line[0] = '\0'; else // still other lines left to save memmove(line, line + oldlinelen+1, sizeof(line) - (oldlinelen+1)); // Terminate the new line, reading more if we can't find the newline char* newline = strchr(line, '\n'); if (newline == NULL) { const int linelen = strlen(line); const int bytes_to_read = sizeof(line)-1 - linelen; assert(bytes_to_read > 0); // because the memmove recovered >=1 bytes chars_read = read(fd, line + linelen, bytes_to_read); line[linelen + chars_read] = '\0'; newline = strchr(line, '\n'); } if (newline != NULL) *newline = '\0'; #if defined(__powerpc__) || defined(__ppc__) // PowerPC cpus report the frequency in "clock" line if (strncasecmp(line, "clock", sizeof("clock")-1) == 0) { const char* freqstr = strchr(line, ':'); if (freqstr) { // PowerPC frequencies are only reported as MHz (check 'show_cpuinfo' // function at arch/powerpc/kernel/setup-common.c) char *endp = strstr(line, "MHz"); if (endp) { *endp = 0; cpuinfo_cycles_per_second = strtod(freqstr+1, &err) * 1000000.0; if (freqstr[1] != '\0' && *err == '\0' && cpuinfo_cycles_per_second > 0) saw_mhz = true; } } #else // When parsing the "cpu MHz" and "bogomips" (fallback) entries, we only // accept postive values. Some environments (virtual machines) report zero, // which would cause infinite looping in WallTime_Init. if (!saw_mhz && strncasecmp(line, "cpu MHz", sizeof("cpu MHz")-1) == 0) { const char* freqstr = strchr(line, ':'); if (freqstr) { cpuinfo_cycles_per_second = strtod(freqstr+1, &err) * 1000000.0; if (freqstr[1] != '\0' && *err == '\0' && cpuinfo_cycles_per_second > 0) saw_mhz = true; } } else if (strncasecmp(line, "bogomips", sizeof("bogomips")-1) == 0) { const char* freqstr = strchr(line, ':'); if (freqstr) { bogo_clock = strtod(freqstr+1, &err) * 1000000.0; if (freqstr[1] != '\0' && *err == '\0' && bogo_clock > 0) saw_bogo = true; } #endif } else if (strncasecmp(line, "processor", sizeof("processor")-1) == 0) { num_cpus++; // count up every time we see an "processor :" entry } } while (chars_read > 0); close(fd); if (!saw_mhz) { if (saw_bogo) { // If we didn't find anything better, we'll use bogomips, but // we're not happy about it. cpuinfo_cycles_per_second = bogo_clock; } else { // If we don't even have bogomips, we'll use the slow estimation. cpuinfo_cycles_per_second = EstimateCyclesPerSecond(1000); } } if (cpuinfo_cycles_per_second == 0.0) { cpuinfo_cycles_per_second = 1.0; // maybe unnecessary, but safe } if (num_cpus > 0) { cpuinfo_num_cpus = num_cpus; } #elif defined __FreeBSD__ // For this sysctl to work, the machine must be configured without // SMP, APIC, or APM support. hz should be 64-bit in freebsd 7.0 // and later. Before that, it's a 32-bit quantity (and gives the // wrong answer on machines faster than 2^32 Hz). See // http://lists.freebsd.org/pipermail/freebsd-i386/2004-November/001846.html // But also compare FreeBSD 7.0: // http://fxr.watson.org/fxr/source/i386/i386/tsc.c?v=RELENG70#L223 // 231 error = sysctl_handle_quad(oidp, &freq, 0, req); // To FreeBSD 6.3 (it's the same in 6-STABLE): // http://fxr.watson.org/fxr/source/i386/i386/tsc.c?v=RELENG6#L131 // 139 error = sysctl_handle_int(oidp, &freq, sizeof(freq), req); #if __FreeBSD__ >= 7 uint64_t hz = 0; #else unsigned int hz = 0; #endif size_t sz = sizeof(hz); const char *sysctl_path = "machdep.tsc_freq"; if ( sysctlbyname(sysctl_path, &hz, &sz, NULL, 0) != 0 ) { fprintf(stderr, "Unable to determine clock rate from sysctl: %s: %s\n", sysctl_path, strerror(errno)); cpuinfo_cycles_per_second = EstimateCyclesPerSecond(1000); } else { cpuinfo_cycles_per_second = hz; } // TODO(csilvers): also figure out cpuinfo_num_cpus #elif defined(PLATFORM_WINDOWS) # pragma comment(lib, "shlwapi.lib") // for SHGetValue() // In NT, read MHz from the registry. If we fail to do so or we're in win9x // then make a crude estimate. OSVERSIONINFO os; os.dwOSVersionInfoSize = sizeof(os); DWORD data, data_size = sizeof(data); if (GetVersionEx(&os) && os.dwPlatformId == VER_PLATFORM_WIN32_NT && SUCCEEDED(SHGetValueA(HKEY_LOCAL_MACHINE, "HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0", "~MHz", NULL, &data, &data_size))) cpuinfo_cycles_per_second = (int64)data * (int64)(1000 * 1000); // was mhz else cpuinfo_cycles_per_second = EstimateCyclesPerSecond(500); // TODO <500? // Get the number of processors. SYSTEM_INFO info; GetSystemInfo(&info); cpuinfo_num_cpus = info.dwNumberOfProcessors; #elif defined(__MACH__) && defined(__APPLE__) // returning "mach time units" per second. the current number of elapsed // mach time units can be found by calling uint64 mach_absolute_time(); // while not as precise as actual CPU cycles, it is accurate in the face // of CPU frequency scaling and multi-cpu/core machines. // Our mac users have these types of machines, and accuracy // (i.e. correctness) trumps precision. // See cycleclock.h: CycleClock::Now(), which returns number of mach time // units on Mac OS X. mach_timebase_info_data_t timebase_info; mach_timebase_info(&timebase_info); double mach_time_units_per_nanosecond = static_cast(timebase_info.denom) / static_cast(timebase_info.numer); cpuinfo_cycles_per_second = mach_time_units_per_nanosecond * 1e9; int num_cpus = 0; size_t size = sizeof(num_cpus); int numcpus_name[] = { CTL_HW, HW_NCPU }; if (::sysctl(numcpus_name, arraysize(numcpus_name), &num_cpus, &size, 0, 0) == 0 && (size == sizeof(num_cpus))) cpuinfo_num_cpus = num_cpus; #else // Generic cycles per second counter cpuinfo_cycles_per_second = EstimateCyclesPerSecond(1000); #endif } double CyclesPerSecond(void) { InitializeSystemInfo(); return cpuinfo_cycles_per_second; } int NumCPUs(void) { InitializeSystemInfo(); return cpuinfo_num_cpus; } // ---------------------------------------------------------------------- // HasPosixThreads() // Return true if we're running POSIX (e.g., NPTL on Linux) // threads, as opposed to a non-POSIX thread library. The thing // that we care about is whether a thread's pid is the same as // the thread that spawned it. If so, this function returns // true. // ---------------------------------------------------------------------- bool HasPosixThreads() { #if defined(__linux__) #ifndef _CS_GNU_LIBPTHREAD_VERSION #define _CS_GNU_LIBPTHREAD_VERSION 3 #endif char buf[32]; // We assume that, if confstr() doesn't know about this name, then // the same glibc is providing LinuxThreads. if (confstr(_CS_GNU_LIBPTHREAD_VERSION, buf, sizeof(buf)) == 0) return false; return strncmp(buf, "NPTL", 4) == 0; #elif defined(PLATFORM_WINDOWS) || defined(__CYGWIN__) || defined(__CYGWIN32__) return false; #else // other OS return true; // Assume that everything else has Posix #endif // else OS_LINUX } // ---------------------------------------------------------------------- #if defined __linux__ || defined __FreeBSD__ || defined __sun__ || defined __CYGWIN__ || defined __CYGWIN32__ static void ConstructFilename(const char* spec, pid_t pid, char* buf, int buf_size) { CHECK_LT(snprintf(buf, buf_size, spec, static_cast(pid ? pid : getpid())), buf_size); } #endif // A templatized helper function instantiated for Mach (OS X) only. // It can handle finding info for both 32 bits and 64 bits. // Returns true if it successfully handled the hdr, false else. #ifdef __MACH__ // Mac OS X, almost certainly template static bool NextExtMachHelper(const mach_header* hdr, int current_image, int current_load_cmd, uint64 *start, uint64 *end, char **flags, uint64 *offset, int64 *inode, char **filename, uint64 *file_mapping, uint64 *file_pages, uint64 *anon_mapping, uint64 *anon_pages, dev_t *dev) { static char kDefaultPerms[5] = "r-xp"; if (hdr->magic != kMagic) return false; const char* lc = (const char *)hdr + sizeof(MachHeader); // TODO(csilvers): make this not-quadradic (increment and hold state) for (int j = 0; j < current_load_cmd; j++) // advance to *our* load_cmd lc += ((const load_command *)lc)->cmdsize; if (((const load_command *)lc)->cmd == kLCSegment) { const intptr_t dlloff = _dyld_get_image_vmaddr_slide(current_image); const SegmentCommand* sc = (const SegmentCommand *)lc; if (start) *start = sc->vmaddr + dlloff; if (end) *end = sc->vmaddr + sc->vmsize + dlloff; if (flags) *flags = kDefaultPerms; // can we do better? if (offset) *offset = sc->fileoff; if (inode) *inode = 0; if (filename) *filename = const_cast(_dyld_get_image_name(current_image)); if (file_mapping) *file_mapping = 0; if (file_pages) *file_pages = 0; // could we use sc->filesize? if (anon_mapping) *anon_mapping = 0; if (anon_pages) *anon_pages = 0; if (dev) *dev = 0; return true; } return false; } #endif // Finds |c| in |text|, and assign '\0' at the found position. // The original character at the modified position should be |c|. // A pointer to the modified position is stored in |endptr|. // |endptr| should not be NULL. static bool ExtractUntilChar(char *text, int c, char **endptr) { CHECK_NE(text, NULL); CHECK_NE(endptr, NULL); char *found; found = strchr(text, c); if (found == NULL) { *endptr = NULL; return false; } *endptr = found; *found = '\0'; return true; } // Increments |*text_pointer| while it points a whitespace character. // It is to follow sscanf's whilespace handling. static void SkipWhileWhitespace(char **text_pointer, int c) { if (isspace(c)) { while (isspace(**text_pointer) && isspace(*((*text_pointer) + 1))) { ++(*text_pointer); } } } template static T StringToInteger(char *text, char **endptr, int base) { assert(false); return T(); } template<> int StringToInteger(char *text, char **endptr, int base) { return strtol(text, endptr, base); } template<> int64 StringToInteger(char *text, char **endptr, int base) { return strtoll(text, endptr, base); } template<> uint64 StringToInteger(char *text, char **endptr, int base) { return strtoull(text, endptr, base); } template static T StringToIntegerUntilChar( char *text, int base, int c, char **endptr_result) { CHECK_NE(endptr_result, NULL); *endptr_result = NULL; char *endptr_extract; if (!ExtractUntilChar(text, c, &endptr_extract)) return 0; T result; char *endptr_strto; result = StringToInteger(text, &endptr_strto, base); *endptr_extract = c; if (endptr_extract != endptr_strto) return 0; *endptr_result = endptr_extract; SkipWhileWhitespace(endptr_result, c); return result; } static char *CopyStringUntilChar( char *text, unsigned out_len, int c, char *out) { char *endptr; if (!ExtractUntilChar(text, c, &endptr)) return NULL; strncpy(out, text, out_len); out[out_len-1] = '\0'; *endptr = c; SkipWhileWhitespace(&endptr, c); return endptr; } template static bool StringToIntegerUntilCharWithCheck( T *outptr, char *text, int base, int c, char **endptr) { *outptr = StringToIntegerUntilChar(*endptr, base, c, endptr); if (*endptr == NULL || **endptr == '\0') return false; ++(*endptr); return true; } static bool ParseProcMapsLine(char *text, uint64 *start, uint64 *end, char *flags, uint64 *offset, int *major, int *minor, int64 *inode, unsigned *filename_offset) { #if defined(__linux__) /* * It's similar to: * sscanf(text, "%"SCNx64"-%"SCNx64" %4s %"SCNx64" %x:%x %"SCNd64" %n", * start, end, flags, offset, major, minor, inode, filename_offset) */ char *endptr = text; if (endptr == NULL || *endptr == '\0') return false; if (!StringToIntegerUntilCharWithCheck(start, endptr, 16, '-', &endptr)) return false; if (!StringToIntegerUntilCharWithCheck(end, endptr, 16, ' ', &endptr)) return false; endptr = CopyStringUntilChar(endptr, 5, ' ', flags); if (endptr == NULL || *endptr == '\0') return false; ++endptr; if (!StringToIntegerUntilCharWithCheck(offset, endptr, 16, ' ', &endptr)) return false; if (!StringToIntegerUntilCharWithCheck(major, endptr, 16, ':', &endptr)) return false; if (!StringToIntegerUntilCharWithCheck(minor, endptr, 16, ' ', &endptr)) return false; if (!StringToIntegerUntilCharWithCheck(inode, endptr, 10, ' ', &endptr)) return false; *filename_offset = (endptr - text); return true; #else return false; #endif } ProcMapsIterator::ProcMapsIterator(pid_t pid) { Init(pid, NULL, false); } ProcMapsIterator::ProcMapsIterator(pid_t pid, Buffer *buffer) { Init(pid, buffer, false); } ProcMapsIterator::ProcMapsIterator(pid_t pid, Buffer *buffer, bool use_maps_backing) { Init(pid, buffer, use_maps_backing); } void ProcMapsIterator::Init(pid_t pid, Buffer *buffer, bool use_maps_backing) { pid_ = pid; using_maps_backing_ = use_maps_backing; dynamic_buffer_ = NULL; if (!buffer) { // If the user didn't pass in any buffer storage, allocate it // now. This is the normal case; the signal handler passes in a // static buffer. buffer = dynamic_buffer_ = new Buffer; } else { dynamic_buffer_ = NULL; } ibuf_ = buffer->buf_; stext_ = etext_ = nextline_ = ibuf_; ebuf_ = ibuf_ + Buffer::kBufSize - 1; nextline_ = ibuf_; #if defined(__linux__) || defined(__CYGWIN__) || defined(__CYGWIN32__) if (use_maps_backing) { // don't bother with clever "self" stuff in this case ConstructFilename("/proc/%d/maps_backing", pid, ibuf_, Buffer::kBufSize); } else if (pid == 0) { // We have to kludge a bit to deal with the args ConstructFilename // expects. The 1 is never used -- it's only impt. that it's not 0. ConstructFilename("/proc/self/maps", 1, ibuf_, Buffer::kBufSize); } else { ConstructFilename("/proc/%d/maps", pid, ibuf_, Buffer::kBufSize); } // No error logging since this can be called from the crash dump // handler at awkward moments. Users should call Valid() before // using. NO_INTR(fd_ = open(ibuf_, O_RDONLY)); #elif defined(__FreeBSD__) // We don't support maps_backing on freebsd if (pid == 0) { ConstructFilename("/proc/curproc/map", 1, ibuf_, Buffer::kBufSize); } else { ConstructFilename("/proc/%d/map", pid, ibuf_, Buffer::kBufSize); } NO_INTR(fd_ = open(ibuf_, O_RDONLY)); #elif defined(__sun__) if (pid == 0) { ConstructFilename("/proc/self/map", 1, ibuf_, Buffer::kBufSize); } else { ConstructFilename("/proc/%d/map", pid, ibuf_, Buffer::kBufSize); } NO_INTR(fd_ = open(ibuf_, O_RDONLY)); #elif defined(__MACH__) current_image_ = _dyld_image_count(); // count down from the top current_load_cmd_ = -1; #elif defined(PLATFORM_WINDOWS) snapshot_ = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE | TH32CS_SNAPMODULE32, GetCurrentProcessId()); memset(&module_, 0, sizeof(module_)); #else fd_ = -1; // so Valid() is always false #endif } ProcMapsIterator::~ProcMapsIterator() { #if defined(PLATFORM_WINDOWS) if (snapshot_ != INVALID_HANDLE_VALUE) CloseHandle(snapshot_); #elif defined(__MACH__) // no cleanup necessary! #else if (fd_ >= 0) NO_INTR(close(fd_)); #endif delete dynamic_buffer_; } bool ProcMapsIterator::Valid() const { #if defined(PLATFORM_WINDOWS) return snapshot_ != INVALID_HANDLE_VALUE; #elif defined(__MACH__) return 1; #else return fd_ != -1; #endif } bool ProcMapsIterator::Next(uint64 *start, uint64 *end, char **flags, uint64 *offset, int64 *inode, char **filename) { return NextExt(start, end, flags, offset, inode, filename, NULL, NULL, NULL, NULL, NULL); } // This has too many arguments. It should really be building // a map object and returning it. The problem is that this is called // when the memory allocator state is undefined, hence the arguments. bool ProcMapsIterator::NextExt(uint64 *start, uint64 *end, char **flags, uint64 *offset, int64 *inode, char **filename, uint64 *file_mapping, uint64 *file_pages, uint64 *anon_mapping, uint64 *anon_pages, dev_t *dev) { #if defined(__linux__) || defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__CYGWIN32__) do { // Advance to the start of the next line stext_ = nextline_; // See if we have a complete line in the buffer already nextline_ = static_cast(memchr (stext_, '\n', etext_ - stext_)); if (!nextline_) { // Shift/fill the buffer so we do have a line int count = etext_ - stext_; // Move the current text to the start of the buffer memmove(ibuf_, stext_, count); stext_ = ibuf_; etext_ = ibuf_ + count; int nread = 0; // fill up buffer with text while (etext_ < ebuf_) { NO_INTR(nread = read(fd_, etext_, ebuf_ - etext_)); if (nread > 0) etext_ += nread; else break; } // Zero out remaining characters in buffer at EOF to avoid returning // garbage from subsequent calls. if (etext_ != ebuf_ && nread == 0) { memset(etext_, 0, ebuf_ - etext_); } *etext_ = '\n'; // sentinel; safe because ibuf extends 1 char beyond ebuf nextline_ = static_cast(memchr (stext_, '\n', etext_ + 1 - stext_)); } *nextline_ = 0; // turn newline into nul nextline_ += ((nextline_ < etext_)? 1 : 0); // skip nul if not end of text // stext_ now points at a nul-terminated line uint64 tmpstart, tmpend, tmpoffset; int64 tmpinode; int major, minor; unsigned filename_offset = 0; #if defined(__linux__) // for now, assume all linuxes have the same format if (!ParseProcMapsLine( stext_, start ? start : &tmpstart, end ? end : &tmpend, flags_, offset ? offset : &tmpoffset, &major, &minor, inode ? inode : &tmpinode, &filename_offset)) continue; #elif defined(__CYGWIN__) || defined(__CYGWIN32__) // cygwin is like linux, except the third field is the "entry point" // rather than the offset (see format_process_maps at // http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/fhandler_process.cc?rev=1.89&content-type=text/x-cvsweb-markup&cvsroot=src // Offset is always be 0 on cygwin: cygwin implements an mmap // by loading the whole file and then calling NtMapViewOfSection. // Cygwin also seems to set its flags kinda randomly; use windows default. char tmpflags[5]; if (offset) *offset = 0; strcpy(flags_, "r-xp"); if (sscanf(stext_, "%llx-%llx %4s %llx %x:%x %lld %n", start ? start : &tmpstart, end ? end : &tmpend, tmpflags, &tmpoffset, &major, &minor, inode ? inode : &tmpinode, &filename_offset) != 7) continue; #elif defined(__FreeBSD__) // For the format, see http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/fs/procfs/procfs_map.c?rev=1.31&content-type=text/x-cvsweb-markup tmpstart = tmpend = tmpoffset = 0; tmpinode = 0; major = minor = 0; // can't get this info in freebsd if (inode) *inode = 0; // nor this if (offset) *offset = 0; // seems like this should be in there, but maybe not // start end resident privateresident obj(?) prot refcnt shadowcnt // flags copy_on_write needs_copy type filename: // 0x8048000 0x804a000 2 0 0xc104ce70 r-x 1 0 0x0 COW NC vnode /bin/cat if (sscanf(stext_, "0x%" SCNx64 " 0x%" SCNx64 " %*d %*d %*p %3s %*d %*d 0x%*x %*s %*s %*s %n", start ? start : &tmpstart, end ? end : &tmpend, flags_, &filename_offset) != 3) continue; #endif // Depending on the Linux kernel being used, there may or may not be a space // after the inode if there is no filename. sscanf will in such situations // nondeterministically either fill in filename_offset or not (the results // differ on multiple calls in the same run even with identical arguments). // We don't want to wander off somewhere beyond the end of the string. size_t stext_length = strlen(stext_); if (filename_offset == 0 || filename_offset > stext_length) filename_offset = stext_length; // We found an entry if (flags) *flags = flags_; if (filename) *filename = stext_ + filename_offset; if (dev) *dev = minor | (major << 8); if (using_maps_backing_) { // Extract and parse physical page backing info. char *backing_ptr = stext_ + filename_offset + strlen(stext_+filename_offset); // find the second '(' int paren_count = 0; while (--backing_ptr > stext_) { if (*backing_ptr == '(') { ++paren_count; if (paren_count >= 2) { uint64 tmp_file_mapping; uint64 tmp_file_pages; uint64 tmp_anon_mapping; uint64 tmp_anon_pages; sscanf(backing_ptr+1, "F %" SCNx64 " %" SCNd64 ") (A %" SCNx64 " %" SCNd64 ")", file_mapping ? file_mapping : &tmp_file_mapping, file_pages ? file_pages : &tmp_file_pages, anon_mapping ? anon_mapping : &tmp_anon_mapping, anon_pages ? anon_pages : &tmp_anon_pages); // null terminate the file name (there is a space // before the first (. backing_ptr[-1] = 0; break; } } } } return true; } while (etext_ > ibuf_); #elif defined(__sun__) // This is based on MA_READ == 4, MA_WRITE == 2, MA_EXEC == 1 static char kPerms[8][4] = { "---", "--x", "-w-", "-wx", "r--", "r-x", "rw-", "rwx" }; COMPILE_ASSERT(MA_READ == 4, solaris_ma_read_must_equal_4); COMPILE_ASSERT(MA_WRITE == 2, solaris_ma_write_must_equal_2); COMPILE_ASSERT(MA_EXEC == 1, solaris_ma_exec_must_equal_1); Buffer object_path; int nread = 0; // fill up buffer with text NO_INTR(nread = read(fd_, ibuf_, sizeof(prmap_t))); if (nread == sizeof(prmap_t)) { long inode_from_mapname = 0; prmap_t* mapinfo = reinterpret_cast(ibuf_); // Best-effort attempt to get the inode from the filename. I think the // two middle ints are major and minor device numbers, but I'm not sure. sscanf(mapinfo->pr_mapname, "ufs.%*d.%*d.%ld", &inode_from_mapname); if (pid_ == 0) { CHECK_LT(snprintf(object_path.buf_, Buffer::kBufSize, "/proc/self/path/%s", mapinfo->pr_mapname), Buffer::kBufSize); } else { CHECK_LT(snprintf(object_path.buf_, Buffer::kBufSize, "/proc/%d/path/%s", static_cast(pid_), mapinfo->pr_mapname), Buffer::kBufSize); } ssize_t len = readlink(object_path.buf_, current_filename_, PATH_MAX); CHECK_LT(len, PATH_MAX); if (len < 0) len = 0; current_filename_[len] = '\0'; if (start) *start = mapinfo->pr_vaddr; if (end) *end = mapinfo->pr_vaddr + mapinfo->pr_size; if (flags) *flags = kPerms[mapinfo->pr_mflags & 7]; if (offset) *offset = mapinfo->pr_offset; if (inode) *inode = inode_from_mapname; if (filename) *filename = current_filename_; if (file_mapping) *file_mapping = 0; if (file_pages) *file_pages = 0; if (anon_mapping) *anon_mapping = 0; if (anon_pages) *anon_pages = 0; if (dev) *dev = 0; return true; } #elif defined(__MACH__) // We return a separate entry for each segment in the DLL. (TODO(csilvers): // can we do better?) A DLL ("image") has load-commands, some of which // talk about segment boundaries. // cf image_for_address from http://svn.digium.com/view/asterisk/team/oej/minivoicemail/dlfcn.c?revision=53912 for (; current_image_ >= 0; current_image_--) { const mach_header* hdr = _dyld_get_image_header(current_image_); if (!hdr) continue; if (current_load_cmd_ < 0) // set up for this image current_load_cmd_ = hdr->ncmds; // again, go from the top down // We start with the next load command (we've already looked at this one). for (current_load_cmd_--; current_load_cmd_ >= 0; current_load_cmd_--) { #ifdef MH_MAGIC_64 if (NextExtMachHelper( hdr, current_image_, current_load_cmd_, start, end, flags, offset, inode, filename, file_mapping, file_pages, anon_mapping, anon_pages, dev)) { return true; } #endif if (NextExtMachHelper( hdr, current_image_, current_load_cmd_, start, end, flags, offset, inode, filename, file_mapping, file_pages, anon_mapping, anon_pages, dev)) { return true; } } // If we get here, no more load_cmd's in this image talk about // segments. Go on to the next image. } #elif defined(PLATFORM_WINDOWS) static char kDefaultPerms[5] = "r-xp"; BOOL ok; if (module_.dwSize == 0) { // only possible before first call module_.dwSize = sizeof(module_); ok = Module32First(snapshot_, &module_); } else { ok = Module32Next(snapshot_, &module_); } if (ok) { uint64 base_addr = reinterpret_cast(module_.modBaseAddr); if (start) *start = base_addr; if (end) *end = base_addr + module_.modBaseSize; if (flags) *flags = kDefaultPerms; if (offset) *offset = 0; if (inode) *inode = 0; if (filename) *filename = module_.szExePath; if (file_mapping) *file_mapping = 0; if (file_pages) *file_pages = 0; if (anon_mapping) *anon_mapping = 0; if (anon_pages) *anon_pages = 0; if (dev) *dev = 0; return true; } #endif // We didn't find anything return false; } int ProcMapsIterator::FormatLine(char* buffer, int bufsize, uint64 start, uint64 end, const char *flags, uint64 offset, int64 inode, const char *filename, dev_t dev) { // We assume 'flags' looks like 'rwxp' or 'rwx'. char r = (flags && flags[0] == 'r') ? 'r' : '-'; char w = (flags && flags[0] && flags[1] == 'w') ? 'w' : '-'; char x = (flags && flags[0] && flags[1] && flags[2] == 'x') ? 'x' : '-'; // p always seems set on linux, so we set the default to 'p', not '-' char p = (flags && flags[0] && flags[1] && flags[2] && flags[3] != 'p') ? '-' : 'p'; const int rc = snprintf(buffer, bufsize, "%08" PRIx64 "-%08" PRIx64 " %c%c%c%c %08" PRIx64 " %02x:%02x %-11" PRId64 " %s\n", start, end, r,w,x,p, offset, static_cast(dev/256), static_cast(dev%256), inode, filename); return (rc < 0 || rc >= bufsize) ? 0 : rc; } namespace tcmalloc { // Helper to add the list of mapped shared libraries to a profile. // Fill formatted "/proc/self/maps" contents into buffer 'buf' of size 'size' // and return the actual size occupied in 'buf'. We fill wrote_all to true // if we successfully wrote all proc lines to buf, false else. // We do not provision for 0-terminating 'buf'. int FillProcSelfMaps(char buf[], int size, bool* wrote_all) { ProcMapsIterator::Buffer iterbuf; ProcMapsIterator it(0, &iterbuf); // 0 means "current pid" uint64 start, end, offset; int64 inode; char *flags, *filename; int bytes_written = 0; *wrote_all = true; while (it.Next(&start, &end, &flags, &offset, &inode, &filename)) { const int line_length = it.FormatLine(buf + bytes_written, size - bytes_written, start, end, flags, offset, inode, filename, 0); if (line_length == 0) *wrote_all = false; // failed to write this line out else bytes_written += line_length; } return bytes_written; } // Dump the same data as FillProcSelfMaps reads to fd. // It seems easier to repeat parts of FillProcSelfMaps here than to // reuse it via a call. void DumpProcSelfMaps(RawFD fd) { ProcMapsIterator::Buffer iterbuf; ProcMapsIterator it(0, &iterbuf); // 0 means "current pid" uint64 start, end, offset; int64 inode; char *flags, *filename; ProcMapsIterator::Buffer linebuf; while (it.Next(&start, &end, &flags, &offset, &inode, &filename)) { int written = it.FormatLine(linebuf.buf_, sizeof(linebuf.buf_), start, end, flags, offset, inode, filename, 0); RawWrite(fd, linebuf.buf_, written); } } } // namespace tcmalloc gperftools-2.4/src/base/cycleclock.h0000644000000000000000000001651512440704174014432 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2004, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // ---------------------------------------------------------------------- // CycleClock // A CycleClock tells you the current time in Cycles. The "time" // is actually time since power-on. This is like time() but doesn't // involve a system call and is much more precise. // // NOTE: Not all cpu/platform/kernel combinations guarantee that this // clock increments at a constant rate or is synchronized across all logical // cpus in a system. // // Also, in some out of order CPU implementations, the CycleClock is not // serializing. So if you're trying to count at cycles granularity, your // data might be inaccurate due to out of order instruction execution. // ---------------------------------------------------------------------- #ifndef GOOGLE_BASE_CYCLECLOCK_H_ #define GOOGLE_BASE_CYCLECLOCK_H_ #include "base/basictypes.h" // make sure we get the def for int64 #include "base/arm_instruction_set_select.h" // base/sysinfo.h is really big and we don't want to include it unless // it is necessary. #if defined(__arm__) || defined(__mips__) || defined(__aarch64__) # include "base/sysinfo.h" #endif #if defined(__MACH__) && defined(__APPLE__) # include #endif // For MSVC, we want to use '_asm rdtsc' when possible (since it works // with even ancient MSVC compilers), and when not possible the // __rdtsc intrinsic, declared in . Unfortunately, in some // environments, and have conflicting // declarations of some other intrinsics, breaking compilation. // Therefore, we simply declare __rdtsc ourselves. See also // http://connect.microsoft.com/VisualStudio/feedback/details/262047 #if defined(_MSC_VER) && !defined(_M_IX86) extern "C" uint64 __rdtsc(); #pragma intrinsic(__rdtsc) #endif #if defined(ARMV3) || defined(__mips__) || defined(__aarch64__) #include #endif // NOTE: only i386 and x86_64 have been well tested. // PPC, sparc, alpha, and ia64 are based on // http://peter.kuscsik.com/wordpress/?p=14 // with modifications by m3b. See also // https://setisvn.ssl.berkeley.edu/svn/lib/fftw-3.0.1/kernel/cycle.h struct CycleClock { // This should return the number of cycles since power-on. Thread-safe. static inline int64 Now() { #if defined(__MACH__) && defined(__APPLE__) // this goes at the top because we need ALL Macs, regardless of // architecture, to return the number of "mach time units" that // have passed since startup. See sysinfo.cc where // InitializeSystemInfo() sets the supposed cpu clock frequency of // macs to the number of mach time units per second, not actual // CPU clock frequency (which can change in the face of CPU // frequency scaling). Also note that when the Mac sleeps, this // counter pauses; it does not continue counting, nor does it // reset to zero. return mach_absolute_time(); #elif defined(__i386__) int64 ret; __asm__ volatile ("rdtsc" : "=A" (ret) ); return ret; #elif defined(__x86_64__) || defined(__amd64__) uint64 low, high; __asm__ volatile ("rdtsc" : "=a" (low), "=d" (high)); return (high << 32) | low; #elif defined(__powerpc64__) || defined(__ppc64__) uint64 tb; __asm__ volatile (\ "mfspr %0, 268" : "=r" (tb)); return tb; #elif defined(__powerpc__) || defined(__ppc__) // This returns a time-base, which is not always precisely a cycle-count. uint32 tbu, tbl, tmp; __asm__ volatile (\ "0:\n" "mftbu %0\n" "mftbl %1\n" "mftbu %2\n" "cmpw %0, %2\n" "bne- 0b" : "=r" (tbu), "=r" (tbl), "=r" (tmp)); return (((uint64) tbu << 32) | tbl); #elif defined(__sparc__) int64 tick; asm(".byte 0x83, 0x41, 0x00, 0x00"); asm("mov %%g1, %0" : "=r" (tick)); return tick; #elif defined(__ia64__) int64 itc; asm("mov %0 = ar.itc" : "=r" (itc)); return itc; #elif defined(_MSC_VER) && defined(_M_IX86) // Older MSVC compilers (like 7.x) don't seem to support the // __rdtsc intrinsic properly, so I prefer to use _asm instead // when I know it will work. Otherwise, I'll use __rdtsc and hope // the code is being compiled with a non-ancient compiler. _asm rdtsc #elif defined(_MSC_VER) return __rdtsc(); #elif defined(ARMV3) || defined(__aarch64__) #if defined(ARMV7) // V7 is the earliest arch that has a standard cyclecount uint32 pmccntr; uint32 pmuseren; uint32 pmcntenset; // Read the user mode perf monitor counter access permissions. asm volatile ("mrc p15, 0, %0, c9, c14, 0" : "=r" (pmuseren)); if (pmuseren & 1) { // Allows reading perfmon counters for user mode code. asm volatile ("mrc p15, 0, %0, c9, c12, 1" : "=r" (pmcntenset)); if (pmcntenset & 0x80000000ul) { // Is it counting? asm volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r" (pmccntr)); // The counter is set up to count every 64th cycle return static_cast(pmccntr) * 64; // Should optimize to << 6 } } #endif struct timeval tv; gettimeofday(&tv, NULL); return static_cast((tv.tv_sec + tv.tv_usec * 0.000001) * CyclesPerSecond()); #elif defined(__mips__) // mips apparently only allows rdtsc for superusers, so we fall // back to gettimeofday. It's possible clock_gettime would be better. struct timeval tv; gettimeofday(&tv, NULL); return static_cast((tv.tv_sec + tv.tv_usec * 0.000001) * CyclesPerSecond()); #else // The soft failover to a generic implementation is automatic only for ARM. // For other platforms the developer is expected to make an attempt to create // a fast implementation and use generic version if nothing better is available. #error You need to define CycleTimer for your O/S and CPU #endif } }; #endif // GOOGLE_BASE_CYCLECLOCK_H_ gperftools-2.4/src/base/arm_instruction_set_select.h0000644000000000000000000000524112372001603017732 00000000000000// Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // Author: Alexander Levitskiy // // Generalizes the plethora of ARM flavors available to an easier to manage set // Defs reference is at https://wiki.edubuntu.org/ARM/Thumb2PortingHowto #ifndef ARM_INSTRUCTION_SET_SELECT_H_ #define ARM_INSTRUCTION_SET_SELECT_H_ #if defined(__ARM_ARCH_7__) || \ defined(__ARM_ARCH_7R__) || \ defined(__ARM_ARCH_7A__) # define ARMV7 1 #endif #if defined(ARMV7) || \ defined(__ARM_ARCH_6__) || \ defined(__ARM_ARCH_6J__) || \ defined(__ARM_ARCH_6K__) || \ defined(__ARM_ARCH_6Z__) || \ defined(__ARM_ARCH_6T2__) || \ defined(__ARM_ARCH_6ZK__) # define ARMV6 1 #endif #if defined(ARMV6) || \ defined(__ARM_ARCH_5T__) || \ defined(__ARM_ARCH_5E__) || \ defined(__ARM_ARCH_5TE__) || \ defined(__ARM_ARCH_5TEJ__) # define ARMV5 1 #endif #if defined(ARMV5) || \ defined(__ARM_ARCH_4__) || \ defined(__ARM_ARCH_4T__) # define ARMV4 1 #endif #if defined(ARMV4) || \ defined(__ARM_ARCH_3__) || \ defined(__ARM_ARCH_3M__) # define ARMV3 1 #endif #if defined(ARMV3) || \ defined(__ARM_ARCH_2__) # define ARMV2 1 #endif #endif // ARM_INSTRUCTION_SET_SELECT_H_ gperftools-2.4/src/base/thread_annotations.h0000644000000000000000000001353612372001603016172 00000000000000// Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Le-Chun Wu // // This header file contains the macro definitions for thread safety // annotations that allow the developers to document the locking policies // of their multi-threaded code. The annotations can also help program // analysis tools to identify potential thread safety issues. // // The annotations are implemented using GCC's "attributes" extension. // Using the macros defined here instead of the raw GCC attributes allows // for portability and future compatibility. // // This functionality is not yet fully implemented in perftools, // but may be one day. #ifndef BASE_THREAD_ANNOTATIONS_H_ #define BASE_THREAD_ANNOTATIONS_H_ #if defined(__GNUC__) \ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) \ && defined(__SUPPORT_TS_ANNOTATION__) && (!defined(SWIG)) #define THREAD_ANNOTATION_ATTRIBUTE__(x) __attribute__((x)) #else #define THREAD_ANNOTATION_ATTRIBUTE__(x) // no-op #endif // Document if a shared variable/field needs to be protected by a lock. // GUARDED_BY allows the user to specify a particular lock that should be // held when accessing the annotated variable, while GUARDED_VAR only // indicates a shared variable should be guarded (by any lock). GUARDED_VAR // is primarily used when the client cannot express the name of the lock. #define GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x)) #define GUARDED_VAR THREAD_ANNOTATION_ATTRIBUTE__(guarded) // Document if the memory location pointed to by a pointer should be guarded // by a lock when dereferencing the pointer. Similar to GUARDED_VAR, // PT_GUARDED_VAR is primarily used when the client cannot express the name // of the lock. Note that a pointer variable to a shared memory location // could itself be a shared variable. For example, if a shared global pointer // q, which is guarded by mu1, points to a shared memory location that is // guarded by mu2, q should be annotated as follows: // int *q GUARDED_BY(mu1) PT_GUARDED_BY(mu2); #define PT_GUARDED_BY(x) \ THREAD_ANNOTATION_ATTRIBUTE__(point_to_guarded_by(x)) #define PT_GUARDED_VAR \ THREAD_ANNOTATION_ATTRIBUTE__(point_to_guarded) // Document the acquisition order between locks that can be held // simultaneously by a thread. For any two locks that need to be annotated // to establish an acquisition order, only one of them needs the annotation. // (i.e. You don't have to annotate both locks with both ACQUIRED_AFTER // and ACQUIRED_BEFORE.) #define ACQUIRED_AFTER(x) \ THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(x)) #define ACQUIRED_BEFORE(x) \ THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(x)) // The following three annotations document the lock requirements for // functions/methods. // Document if a function expects certain locks to be held before it is called #define EXCLUSIVE_LOCKS_REQUIRED(x) \ THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(x)) #define SHARED_LOCKS_REQUIRED(x) \ THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(x)) // Document the locks acquired in the body of the function. These locks // cannot be held when calling this function (as google3's Mutex locks are // non-reentrant). #define LOCKS_EXCLUDED(x) \ THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(x)) // Document the lock the annotated function returns without acquiring it. #define LOCK_RETURNED(x) THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x)) // Document if a class/type is a lockable type (such as the Mutex class). #define LOCKABLE THREAD_ANNOTATION_ATTRIBUTE__(lockable) // Document if a class is a scoped lockable type (such as the MutexLock class). #define SCOPED_LOCKABLE THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable) // The following annotations specify lock and unlock primitives. #define EXCLUSIVE_LOCK_FUNCTION(x) \ THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock(x)) #define SHARED_LOCK_FUNCTION(x) \ THREAD_ANNOTATION_ATTRIBUTE__(shared_lock(x)) #define EXCLUSIVE_TRYLOCK_FUNCTION(x) \ THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock(x)) #define SHARED_TRYLOCK_FUNCTION(x) \ THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock(x)) #define UNLOCK_FUNCTION(x) \ THREAD_ANNOTATION_ATTRIBUTE__(unlock(x)) // An escape hatch for thread safety analysis to ignore the annotated function. #define NO_THREAD_SAFETY_ANALYSIS \ THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis) #endif // BASE_THREAD_ANNOTATIONS_H_ gperftools-2.4/src/base/elfcore.h0000644000000000000000000005125412440704174013735 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2005-2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Markus Gutschke, Carl Crous */ #ifndef _ELFCORE_H #define _ELFCORE_H #ifdef __cplusplus extern "C" { #endif /* We currently only support x86-32, x86-64, ARM, MIPS, PPC on Linux. * Porting to other related platforms should not be difficult. */ #if (defined(__i386__) || defined(__x86_64__) || defined(__ARM_ARCH_3__) || \ defined(__mips__) || defined(__PPC__)) && defined(__linux) #include #include #include #include /* Define the DUMPER symbol to make sure that there is exactly one * core dumper built into the library. */ #define DUMPER "ELF" /* By the time that we get a chance to read CPU registers in the * calling thread, they are already in a not particularly useful * state. Besides, there will be multiple frames on the stack that are * just making the core file confusing. To fix this problem, we take a * snapshot of the frame pointer, stack pointer, and instruction * pointer at an earlier time, and then insert these values into the * core file. */ #if defined(__i386__) || defined(__x86_64__) typedef struct i386_regs { /* Normal (non-FPU) CPU registers */ #ifdef __x86_64__ #define BP rbp #define SP rsp #define IP rip uint64_t r15,r14,r13,r12,rbp,rbx,r11,r10; uint64_t r9,r8,rax,rcx,rdx,rsi,rdi,orig_rax; uint64_t rip,cs,eflags; uint64_t rsp,ss; uint64_t fs_base, gs_base; uint64_t ds,es,fs,gs; #else #define BP ebp #define SP esp #define IP eip uint32_t ebx, ecx, edx, esi, edi, ebp, eax; uint16_t ds, __ds, es, __es; uint16_t fs, __fs, gs, __gs; uint32_t orig_eax, eip; uint16_t cs, __cs; uint32_t eflags, esp; uint16_t ss, __ss; #endif } i386_regs; #elif defined(__ARM_ARCH_3__) typedef struct arm_regs { /* General purpose registers */ #define BP uregs[11] /* Frame pointer */ #define SP uregs[13] /* Stack pointer */ #define IP uregs[15] /* Program counter */ #define LR uregs[14] /* Link register */ long uregs[18]; } arm_regs; #elif defined(__mips__) typedef struct mips_regs { unsigned long pad[6]; /* Unused padding to match kernel structures */ unsigned long uregs[32]; /* General purpose registers. */ unsigned long hi; /* Used for multiplication and division. */ unsigned long lo; unsigned long cp0_epc; /* Program counter. */ unsigned long cp0_badvaddr; unsigned long cp0_status; unsigned long cp0_cause; unsigned long unused; } mips_regs; #elif defined (__PPC__) typedef struct ppc_regs { #define SP uregs[1] /* Stack pointer */ #define IP rip /* Program counter */ #define LR lr /* Link register */ unsigned long uregs[32]; /* General Purpose Registers - r0-r31. */ double fpr[32]; /* Floating-Point Registers - f0-f31. */ unsigned long rip; /* Program counter. */ unsigned long msr; unsigned long ccr; unsigned long lr; unsigned long ctr; unsigned long xeq; unsigned long mq; } ppc_regs; #endif #if defined(__i386__) && defined(__GNUC__) /* On x86 we provide an optimized version of the FRAME() macro, if the * compiler supports a GCC-style asm() directive. This results in somewhat * more accurate values for CPU registers. */ typedef struct Frame { struct i386_regs uregs; int errno_; pid_t tid; } Frame; #define FRAME(f) Frame f; \ do { \ f.errno_ = errno; \ f.tid = sys_gettid(); \ __asm__ volatile ( \ "push %%ebp\n" \ "push %%ebx\n" \ "mov %%ebx,0(%%eax)\n" \ "mov %%ecx,4(%%eax)\n" \ "mov %%edx,8(%%eax)\n" \ "mov %%esi,12(%%eax)\n" \ "mov %%edi,16(%%eax)\n" \ "mov %%ebp,20(%%eax)\n" \ "mov %%eax,24(%%eax)\n" \ "mov %%ds,%%ebx\n" \ "mov %%ebx,28(%%eax)\n" \ "mov %%es,%%ebx\n" \ "mov %%ebx,32(%%eax)\n" \ "mov %%fs,%%ebx\n" \ "mov %%ebx,36(%%eax)\n" \ "mov %%gs,%%ebx\n" \ "mov %%ebx, 40(%%eax)\n" \ "call 0f\n" \ "0:pop %%ebx\n" \ "add $1f-0b,%%ebx\n" \ "mov %%ebx,48(%%eax)\n" \ "mov %%cs,%%ebx\n" \ "mov %%ebx,52(%%eax)\n" \ "pushf\n" \ "pop %%ebx\n" \ "mov %%ebx,56(%%eax)\n" \ "mov %%esp,%%ebx\n" \ "add $8,%%ebx\n" \ "mov %%ebx,60(%%eax)\n" \ "mov %%ss,%%ebx\n" \ "mov %%ebx,64(%%eax)\n" \ "pop %%ebx\n" \ "pop %%ebp\n" \ "1:" \ : : "a" (&f) : "memory"); \ } while (0) #define SET_FRAME(f,r) \ do { \ errno = (f).errno_; \ (r) = (f).uregs; \ } while (0) #elif defined(__x86_64__) && defined(__GNUC__) /* The FRAME and SET_FRAME macros for x86_64. */ typedef struct Frame { struct i386_regs uregs; int errno_; pid_t tid; } Frame; #define FRAME(f) Frame f; \ do { \ f.errno_ = errno; \ f.tid = sys_gettid(); \ __asm__ volatile ( \ "push %%rbp\n" \ "push %%rbx\n" \ "mov %%r15,0(%%rax)\n" \ "mov %%r14,8(%%rax)\n" \ "mov %%r13,16(%%rax)\n" \ "mov %%r12,24(%%rax)\n" \ "mov %%rbp,32(%%rax)\n" \ "mov %%rbx,40(%%rax)\n" \ "mov %%r11,48(%%rax)\n" \ "mov %%r10,56(%%rax)\n" \ "mov %%r9,64(%%rax)\n" \ "mov %%r8,72(%%rax)\n" \ "mov %%rax,80(%%rax)\n" \ "mov %%rcx,88(%%rax)\n" \ "mov %%rdx,96(%%rax)\n" \ "mov %%rsi,104(%%rax)\n" \ "mov %%rdi,112(%%rax)\n" \ "mov %%ds,%%rbx\n" \ "mov %%rbx,184(%%rax)\n" \ "mov %%es,%%rbx\n" \ "mov %%rbx,192(%%rax)\n" \ "mov %%fs,%%rbx\n" \ "mov %%rbx,200(%%rax)\n" \ "mov %%gs,%%rbx\n" \ "mov %%rbx,208(%%rax)\n" \ "call 0f\n" \ "0:pop %%rbx\n" \ "add $1f-0b,%%rbx\n" \ "mov %%rbx,128(%%rax)\n" \ "mov %%cs,%%rbx\n" \ "mov %%rbx,136(%%rax)\n" \ "pushf\n" \ "pop %%rbx\n" \ "mov %%rbx,144(%%rax)\n" \ "mov %%rsp,%%rbx\n" \ "add $16,%%ebx\n" \ "mov %%rbx,152(%%rax)\n" \ "mov %%ss,%%rbx\n" \ "mov %%rbx,160(%%rax)\n" \ "pop %%rbx\n" \ "pop %%rbp\n" \ "1:" \ : : "a" (&f) : "memory"); \ } while (0) #define SET_FRAME(f,r) \ do { \ errno = (f).errno_; \ (f).uregs.fs_base = (r).fs_base; \ (f).uregs.gs_base = (r).gs_base; \ (r) = (f).uregs; \ } while (0) #elif defined(__ARM_ARCH_3__) && defined(__GNUC__) /* ARM calling conventions are a little more tricky. A little assembly * helps in obtaining an accurate snapshot of all registers. */ typedef struct Frame { struct arm_regs arm; int errno_; pid_t tid; } Frame; #define FRAME(f) Frame f; \ do { \ long cpsr; \ f.errno_ = errno; \ f.tid = sys_gettid(); \ __asm__ volatile( \ "stmia %0, {r0-r15}\n" /* All integer regs */\ : : "r"(&f.arm) : "memory"); \ f.arm.uregs[16] = 0; \ __asm__ volatile( \ "mrs %0, cpsr\n" /* Condition code reg */\ : "=r"(cpsr)); \ f.arm.uregs[17] = cpsr; \ } while (0) #define SET_FRAME(f,r) \ do { \ /* Don't override the FPU status register. */\ /* Use the value obtained from ptrace(). This*/\ /* works, because our code does not perform */\ /* any FPU operations, itself. */\ long fps = (f).arm.uregs[16]; \ errno = (f).errno_; \ (r) = (f).arm; \ (r).uregs[16] = fps; \ } while (0) #elif defined(__mips__) && defined(__GNUC__) typedef struct Frame { struct mips_regs mips_regs; int errno_; pid_t tid; } Frame; #define MIPSREG(n) ({ register unsigned long r __asm__("$"#n); r; }) #define FRAME(f) Frame f = { 0 }; \ do { \ unsigned long hi, lo; \ register unsigned long pc __asm__("$31"); \ f.mips_regs.uregs[ 0] = MIPSREG( 0); \ f.mips_regs.uregs[ 1] = MIPSREG( 1); \ f.mips_regs.uregs[ 2] = MIPSREG( 2); \ f.mips_regs.uregs[ 3] = MIPSREG( 3); \ f.mips_regs.uregs[ 4] = MIPSREG( 4); \ f.mips_regs.uregs[ 5] = MIPSREG( 5); \ f.mips_regs.uregs[ 6] = MIPSREG( 6); \ f.mips_regs.uregs[ 7] = MIPSREG( 7); \ f.mips_regs.uregs[ 8] = MIPSREG( 8); \ f.mips_regs.uregs[ 9] = MIPSREG( 9); \ f.mips_regs.uregs[10] = MIPSREG(10); \ f.mips_regs.uregs[11] = MIPSREG(11); \ f.mips_regs.uregs[12] = MIPSREG(12); \ f.mips_regs.uregs[13] = MIPSREG(13); \ f.mips_regs.uregs[14] = MIPSREG(14); \ f.mips_regs.uregs[15] = MIPSREG(15); \ f.mips_regs.uregs[16] = MIPSREG(16); \ f.mips_regs.uregs[17] = MIPSREG(17); \ f.mips_regs.uregs[18] = MIPSREG(18); \ f.mips_regs.uregs[19] = MIPSREG(19); \ f.mips_regs.uregs[20] = MIPSREG(20); \ f.mips_regs.uregs[21] = MIPSREG(21); \ f.mips_regs.uregs[22] = MIPSREG(22); \ f.mips_regs.uregs[23] = MIPSREG(23); \ f.mips_regs.uregs[24] = MIPSREG(24); \ f.mips_regs.uregs[25] = MIPSREG(25); \ f.mips_regs.uregs[26] = MIPSREG(26); \ f.mips_regs.uregs[27] = MIPSREG(27); \ f.mips_regs.uregs[28] = MIPSREG(28); \ f.mips_regs.uregs[29] = MIPSREG(29); \ f.mips_regs.uregs[30] = MIPSREG(30); \ f.mips_regs.uregs[31] = MIPSREG(31); \ __asm__ volatile ("mfhi %0" : "=r"(hi)); \ __asm__ volatile ("mflo %0" : "=r"(lo)); \ __asm__ volatile ("jal 1f; 1:nop" : "=r"(pc)); \ f.mips_regs.hi = hi; \ f.mips_regs.lo = lo; \ f.mips_regs.cp0_epc = pc; \ f.errno_ = errno; \ f.tid = sys_gettid(); \ } while (0) #define SET_FRAME(f,r) \ do { \ errno = (f).errno_; \ memcpy((r).uregs, (f).mips_regs.uregs, \ 32*sizeof(unsigned long)); \ (r).hi = (f).mips_regs.hi; \ (r).lo = (f).mips_regs.lo; \ (r).cp0_epc = (f).mips_regs.cp0_epc; \ } while (0) #else /* If we do not have a hand-optimized assembly version of the FRAME() * macro, we cannot reliably unroll the stack. So, we show a few additional * stack frames for the coredumper. */ typedef struct Frame { pid_t tid; } Frame; #define FRAME(f) Frame f; do { f.tid = sys_gettid(); } while (0) #define SET_FRAME(f,r) do { } while (0) #endif /* Internal function for generating a core file. This API can change without * notice and is only supposed to be used internally by the core dumper. * * This function works for both single- and multi-threaded core * dumps. If called as * * FRAME(frame); * InternalGetCoreDump(&frame, 0, NULL, ap); * * it creates a core file that only contains information about the * calling thread. * * Optionally, the caller can provide information about other threads * by passing their process ids in "thread_pids". The process id of * the caller should not be included in this array. All of the threads * must have been attached to with ptrace(), prior to calling this * function. They will be detached when "InternalGetCoreDump()" returns. * * This function either returns a file handle that can be read for obtaining * a core dump, or "-1" in case of an error. In the latter case, "errno" * will be set appropriately. * * While "InternalGetCoreDump()" is not technically async signal safe, you * might be tempted to invoke it from a signal handler. The code goes to * great lengths to make a best effort that this will actually work. But in * any case, you must make sure that you preserve the value of "errno" * yourself. It is guaranteed to be clobbered otherwise. * * Also, "InternalGetCoreDump" is not strictly speaking re-entrant. Again, * it makes a best effort to behave reasonably when called in a multi- * threaded environment, but it is ultimately the caller's responsibility * to provide locking. */ int InternalGetCoreDump(void *frame, int num_threads, pid_t *thread_pids, va_list ap /* const struct CoreDumpParameters *params, const char *file_name, const char *PATH */); #endif #ifdef __cplusplus } #endif #endif /* _ELFCORE_H */ gperftools-2.4/src/base/linux_syscall_support.h0000644000000000000000000032373512440704174017011 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2005-2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Markus Gutschke */ /* This file includes Linux-specific support functions common to the * coredumper and the thread lister; primarily, this is a collection * of direct system calls, and a couple of symbols missing from * standard header files. * There are a few options that the including file can set to control * the behavior of this file: * * SYS_CPLUSPLUS: * The entire header file will normally be wrapped in 'extern "C" { }", * making it suitable for compilation as both C and C++ source. If you * do not want to do this, you can set the SYS_CPLUSPLUS macro to inhibit * the wrapping. N.B. doing so will suppress inclusion of all prerequisite * system header files, too. It is the caller's responsibility to provide * the necessary definitions. * * SYS_ERRNO: * All system calls will update "errno" unless overriden by setting the * SYS_ERRNO macro prior to including this file. SYS_ERRNO should be * an l-value. * * SYS_INLINE: * New symbols will be defined "static inline", unless overridden by * the SYS_INLINE macro. * * SYS_LINUX_SYSCALL_SUPPORT_H * This macro is used to avoid multiple inclusions of this header file. * If you need to include this file more than once, make sure to * unset SYS_LINUX_SYSCALL_SUPPORT_H before each inclusion. * * SYS_PREFIX: * New system calls will have a prefix of "sys_" unless overridden by * the SYS_PREFIX macro. Valid values for this macro are [0..9] which * results in prefixes "sys[0..9]_". It is also possible to set this * macro to -1, which avoids all prefixes. * * This file defines a few internal symbols that all start with "LSS_". * Do not access these symbols from outside this file. They are not part * of the supported API. * * NOTE: This is a stripped down version of the official opensource * version of linux_syscall_support.h, which lives at * http://code.google.com/p/linux-syscall-support/ * It includes only the syscalls that are used in perftools, plus a * few extra. Here's the breakdown: * 1) Perftools uses these: grep -rho 'sys_[a-z0-9_A-Z]* *(' src | sort -u * sys__exit( * sys_clone( * sys_close( * sys_fcntl( * sys_fstat( * sys_futex( * sys_futex1( * sys_getcpu( * sys_getdents64( * sys_getppid( * sys_gettid( * sys_lseek( * sys_mmap( * sys_mremap( * sys_munmap( * sys_open( * sys_pipe( * sys_prctl( * sys_ptrace( * sys_ptrace_detach( * sys_read( * sys_sched_yield( * sys_sigaction( * sys_sigaltstack( * sys_sigdelset( * sys_sigfillset( * sys_sigprocmask( * sys_socket( * sys_stat( * sys_waitpid( * 2) These are used as subroutines of the above: * sys_getpid -- gettid * sys_kill -- ptrace_detach * sys_restore -- sigaction * sys_restore_rt -- sigaction * sys_socketcall -- socket * sys_wait4 -- waitpid * 3) I left these in even though they're not used. They either * complement the above (write vs read) or are variants (rt_sigaction): * sys_fstat64 * sys_llseek * sys_mmap2 * sys_openat * sys_getdents * sys_rt_sigaction * sys_rt_sigprocmask * sys_sigaddset * sys_sigemptyset * sys_stat64 * sys_write */ #ifndef SYS_LINUX_SYSCALL_SUPPORT_H #define SYS_LINUX_SYSCALL_SUPPORT_H /* We currently only support x86-32, x86-64, ARM, MIPS, PPC/PPC64 and Aarch64 on Linux. * Porting to other related platforms should not be difficult. */ #if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \ defined(__mips__) || defined(__PPC__) || defined(__aarch64__)) && defined(__linux) #ifndef SYS_CPLUSPLUS #ifdef __cplusplus /* Some system header files in older versions of gcc neglect to properly * handle being included from C++. As it appears to be harmless to have * multiple nested 'extern "C"' blocks, just add another one here. */ extern "C" { #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __mips__ /* Include definitions of the ABI currently in use. */ #include #endif #endif /* As glibc often provides subtly incompatible data structures (and implicit * wrapper functions that convert them), we provide our own kernel data * structures for use by the system calls. * These structures have been developed by using Linux 2.6.23 headers for * reference. Note though, we do not care about exact API compatibility * with the kernel, and in fact the kernel often does not have a single * API that works across architectures. Instead, we try to mimic the glibc * API where reasonable, and only guarantee ABI compatibility with the * kernel headers. * Most notably, here are a few changes that were made to the structures * defined by kernel headers: * * - we only define structures, but not symbolic names for kernel data * types. For the latter, we directly use the native C datatype * (i.e. "unsigned" instead of "mode_t"). * - in a few cases, it is possible to define identical structures for * both 32bit (e.g. i386) and 64bit (e.g. x86-64) platforms by * standardizing on the 64bit version of the data types. In particular, * this means that we use "unsigned" where the 32bit headers say * "unsigned long". * - overall, we try to minimize the number of cases where we need to * conditionally define different structures. * - the "struct kernel_sigaction" class of structures have been * modified to more closely mimic glibc's API by introducing an * anonymous union for the function pointer. * - a small number of field names had to have an underscore appended to * them, because glibc defines a global macro by the same name. */ /* include/linux/dirent.h */ struct kernel_dirent64 { unsigned long long d_ino; long long d_off; unsigned short d_reclen; unsigned char d_type; char d_name[256]; }; /* include/linux/dirent.h */ struct kernel_dirent { long d_ino; long d_off; unsigned short d_reclen; char d_name[256]; }; /* include/linux/time.h */ struct kernel_timespec { long tv_sec; long tv_nsec; }; /* include/linux/time.h */ struct kernel_timeval { long tv_sec; long tv_usec; }; /* include/linux/resource.h */ struct kernel_rusage { struct kernel_timeval ru_utime; struct kernel_timeval ru_stime; long ru_maxrss; long ru_ixrss; long ru_idrss; long ru_isrss; long ru_minflt; long ru_majflt; long ru_nswap; long ru_inblock; long ru_oublock; long ru_msgsnd; long ru_msgrcv; long ru_nsignals; long ru_nvcsw; long ru_nivcsw; }; #if defined(__i386__) || defined(__arm__) || defined(__PPC__) /* include/asm-{arm,i386,mips,ppc}/signal.h */ struct kernel_old_sigaction { union { void (*sa_handler_)(int); void (*sa_sigaction_)(int, siginfo_t *, void *); }; unsigned long sa_mask; unsigned long sa_flags; void (*sa_restorer)(void); } __attribute__((packed,aligned(4))); #elif (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) #define kernel_old_sigaction kernel_sigaction #endif /* Some kernel functions (e.g. sigaction() in 2.6.23) require that the * exactly match the size of the signal set, even though the API was * intended to be extensible. We define our own KERNEL_NSIG to deal with * this. * Please note that glibc provides signals [1.._NSIG-1], whereas the * kernel (and this header) provides the range [1..KERNEL_NSIG]. The * actual number of signals is obviously the same, but the constants * differ by one. */ #ifdef __mips__ #define KERNEL_NSIG 128 #else #define KERNEL_NSIG 64 #endif /* include/asm-{arm,i386,mips,x86_64}/signal.h */ struct kernel_sigset_t { unsigned long sig[(KERNEL_NSIG + 8*sizeof(unsigned long) - 1)/ (8*sizeof(unsigned long))]; }; /* include/asm-{arm,generic,i386,mips,x86_64,ppc}/signal.h */ struct kernel_sigaction { #ifdef __mips__ unsigned long sa_flags; union { void (*sa_handler_)(int); void (*sa_sigaction_)(int, siginfo_t *, void *); }; struct kernel_sigset_t sa_mask; #else union { void (*sa_handler_)(int); void (*sa_sigaction_)(int, siginfo_t *, void *); }; unsigned long sa_flags; void (*sa_restorer)(void); struct kernel_sigset_t sa_mask; #endif }; /* include/asm-{arm,i386,mips,ppc}/stat.h */ #ifdef __mips__ #if _MIPS_SIM == _MIPS_SIM_ABI64 struct kernel_stat { #else struct kernel_stat64 { #endif unsigned st_dev; unsigned __pad0[3]; unsigned long long st_ino; unsigned st_mode; unsigned st_nlink; unsigned st_uid; unsigned st_gid; unsigned st_rdev; unsigned __pad1[3]; long long st_size; unsigned st_atime_; unsigned st_atime_nsec_; unsigned st_mtime_; unsigned st_mtime_nsec_; unsigned st_ctime_; unsigned st_ctime_nsec_; unsigned st_blksize; unsigned __pad2; unsigned long long st_blocks; }; #elif defined __PPC__ struct kernel_stat64 { unsigned long long st_dev; unsigned long long st_ino; unsigned st_nlink; unsigned st_mode; unsigned st_uid; unsigned st_gid; int __pad2; unsigned long long st_rdev; long long st_size; long long st_blksize; long long st_blocks; kernel_timespec st_atim; kernel_timespec st_mtim; kernel_timespec st_ctim; unsigned long __unused4; unsigned long __unused5; unsigned long __unused6; }; #else struct kernel_stat64 { unsigned long long st_dev; unsigned char __pad0[4]; unsigned __st_ino; unsigned st_mode; unsigned st_nlink; unsigned st_uid; unsigned st_gid; unsigned long long st_rdev; unsigned char __pad3[4]; long long st_size; unsigned st_blksize; unsigned long long st_blocks; unsigned st_atime_; unsigned st_atime_nsec_; unsigned st_mtime_; unsigned st_mtime_nsec_; unsigned st_ctime_; unsigned st_ctime_nsec_; unsigned long long st_ino; }; #endif /* include/asm-{arm,generic,i386,mips,x86_64,ppc}/stat.h */ #if defined(__i386__) || defined(__arm__) struct kernel_stat { /* The kernel headers suggest that st_dev and st_rdev should be 32bit * quantities encoding 12bit major and 20bit minor numbers in an interleaved * format. In reality, we do not see useful data in the top bits. So, * we'll leave the padding in here, until we find a better solution. */ unsigned short st_dev; short pad1; unsigned st_ino; unsigned short st_mode; unsigned short st_nlink; unsigned short st_uid; unsigned short st_gid; unsigned short st_rdev; short pad2; unsigned st_size; unsigned st_blksize; unsigned st_blocks; unsigned st_atime_; unsigned st_atime_nsec_; unsigned st_mtime_; unsigned st_mtime_nsec_; unsigned st_ctime_; unsigned st_ctime_nsec_; unsigned __unused4; unsigned __unused5; }; #elif defined(__x86_64__) struct kernel_stat { uint64_t st_dev; uint64_t st_ino; uint64_t st_nlink; unsigned st_mode; unsigned st_uid; unsigned st_gid; unsigned __pad0; uint64_t st_rdev; int64_t st_size; int64_t st_blksize; int64_t st_blocks; uint64_t st_atime_; uint64_t st_atime_nsec_; uint64_t st_mtime_; uint64_t st_mtime_nsec_; uint64_t st_ctime_; uint64_t st_ctime_nsec_; int64_t __unused[3]; }; #elif defined(__PPC__) struct kernel_stat { unsigned long long st_dev; unsigned long st_ino; unsigned long st_nlink; unsigned long st_mode; unsigned st_uid; unsigned st_gid; int __pad2; unsigned long long st_rdev; long st_size; unsigned long st_blksize; unsigned long st_blocks; kernel_timespec st_atim; kernel_timespec st_mtim; kernel_timespec st_ctim; unsigned long __unused4; unsigned long __unused5; unsigned long __unused6; }; #elif (defined(__mips__) && _MIPS_SIM != _MIPS_SIM_ABI64) struct kernel_stat { unsigned st_dev; int st_pad1[3]; unsigned st_ino; unsigned st_mode; unsigned st_nlink; unsigned st_uid; unsigned st_gid; unsigned st_rdev; int st_pad2[2]; long st_size; int st_pad3; long st_atime_; long st_atime_nsec_; long st_mtime_; long st_mtime_nsec_; long st_ctime_; long st_ctime_nsec_; int st_blksize; int st_blocks; int st_pad4[14]; }; #elif defined(__aarch64__) struct kernel_stat { unsigned long st_dev; unsigned long st_ino; unsigned int st_mode; unsigned int st_nlink; unsigned int st_uid; unsigned int st_gid; unsigned long st_rdev; unsigned long __pad1; long st_size; int st_blksize; int __pad2; long st_blocks; long st_atime_; unsigned long st_atime_nsec_; long st_mtime_; unsigned long st_mtime_nsec_; long st_ctime_; unsigned long st_ctime_nsec_; unsigned int __unused4; unsigned int __unused5; }; #endif /* Definitions missing from the standard header files */ #ifndef O_DIRECTORY #if defined(__arm__) #define O_DIRECTORY 0040000 #else #define O_DIRECTORY 0200000 #endif #endif #ifndef PR_GET_DUMPABLE #define PR_GET_DUMPABLE 3 #endif #ifndef PR_SET_DUMPABLE #define PR_SET_DUMPABLE 4 #endif #ifndef AT_FDCWD #define AT_FDCWD (-100) #endif #ifndef AT_SYMLINK_NOFOLLOW #define AT_SYMLINK_NOFOLLOW 0x100 #endif #ifndef AT_REMOVEDIR #define AT_REMOVEDIR 0x200 #endif #ifndef MREMAP_FIXED #define MREMAP_FIXED 2 #endif #ifndef SA_RESTORER #define SA_RESTORER 0x04000000 #endif #if defined(__i386__) #ifndef __NR_rt_sigaction #define __NR_rt_sigaction 174 #define __NR_rt_sigprocmask 175 #endif #ifndef __NR_stat64 #define __NR_stat64 195 #endif #ifndef __NR_fstat64 #define __NR_fstat64 197 #endif #ifndef __NR_getdents64 #define __NR_getdents64 220 #endif #ifndef __NR_gettid #define __NR_gettid 224 #endif #ifndef __NR_futex #define __NR_futex 240 #endif #ifndef __NR_openat #define __NR_openat 295 #endif #ifndef __NR_getcpu #define __NR_getcpu 318 #endif /* End of i386 definitions */ #elif defined(__arm__) #ifndef __syscall #if defined(__thumb__) || defined(__ARM_EABI__) #define __SYS_REG(name) register long __sysreg __asm__("r6") = __NR_##name; #define __SYS_REG_LIST(regs...) [sysreg] "r" (__sysreg) , ##regs #define __syscall(name) "swi\t0" #define __syscall_safe(name) \ "push {r7}\n" \ "mov r7,%[sysreg]\n" \ __syscall(name)"\n" \ "pop {r7}" #else #define __SYS_REG(name) #define __SYS_REG_LIST(regs...) regs #define __syscall(name) "swi\t" __sys1(__NR_##name) "" #define __syscall_safe(name) __syscall(name) #endif #endif #ifndef __NR_rt_sigaction #define __NR_rt_sigaction (__NR_SYSCALL_BASE + 174) #define __NR_rt_sigprocmask (__NR_SYSCALL_BASE + 175) #endif #ifndef __NR_stat64 #define __NR_stat64 (__NR_SYSCALL_BASE + 195) #endif #ifndef __NR_fstat64 #define __NR_fstat64 (__NR_SYSCALL_BASE + 197) #endif #ifndef __NR_getdents64 #define __NR_getdents64 (__NR_SYSCALL_BASE + 217) #endif #ifndef __NR_gettid #define __NR_gettid (__NR_SYSCALL_BASE + 224) #endif #ifndef __NR_futex #define __NR_futex (__NR_SYSCALL_BASE + 240) #endif /* End of ARM definitions */ #elif defined(__x86_64__) #ifndef __NR_gettid #define __NR_gettid 186 #endif #ifndef __NR_futex #define __NR_futex 202 #endif #ifndef __NR_getdents64 #define __NR_getdents64 217 #endif #ifndef __NR_openat #define __NR_openat 257 #endif /* End of x86-64 definitions */ #elif defined(__mips__) #if _MIPS_SIM == _MIPS_SIM_ABI32 #ifndef __NR_rt_sigaction #define __NR_rt_sigaction (__NR_Linux + 194) #define __NR_rt_sigprocmask (__NR_Linux + 195) #endif #ifndef __NR_stat64 #define __NR_stat64 (__NR_Linux + 213) #endif #ifndef __NR_fstat64 #define __NR_fstat64 (__NR_Linux + 215) #endif #ifndef __NR_getdents64 #define __NR_getdents64 (__NR_Linux + 219) #endif #ifndef __NR_gettid #define __NR_gettid (__NR_Linux + 222) #endif #ifndef __NR_futex #define __NR_futex (__NR_Linux + 238) #endif #ifndef __NR_openat #define __NR_openat (__NR_Linux + 288) #endif #ifndef __NR_fstatat #define __NR_fstatat (__NR_Linux + 293) #endif #ifndef __NR_getcpu #define __NR_getcpu (__NR_Linux + 312) #endif /* End of MIPS (old 32bit API) definitions */ #elif _MIPS_SIM == _MIPS_SIM_ABI64 #ifndef __NR_gettid #define __NR_gettid (__NR_Linux + 178) #endif #ifndef __NR_futex #define __NR_futex (__NR_Linux + 194) #endif #ifndef __NR_openat #define __NR_openat (__NR_Linux + 247) #endif #ifndef __NR_fstatat #define __NR_fstatat (__NR_Linux + 252) #endif #ifndef __NR_getcpu #define __NR_getcpu (__NR_Linux + 271) #endif /* End of MIPS (64bit API) definitions */ #else #ifndef __NR_gettid #define __NR_gettid (__NR_Linux + 178) #endif #ifndef __NR_futex #define __NR_futex (__NR_Linux + 194) #endif #ifndef __NR_openat #define __NR_openat (__NR_Linux + 251) #endif #ifndef __NR_fstatat #define __NR_fstatat (__NR_Linux + 256) #endif #ifndef __NR_getcpu #define __NR_getcpu (__NR_Linux + 275) #endif /* End of MIPS (new 32bit API) definitions */ #endif /* End of MIPS definitions */ #elif defined(__PPC__) #ifndef __NR_rt_sigaction #define __NR_rt_sigaction 173 #define __NR_rt_sigprocmask 174 #endif #ifndef __NR_stat64 #define __NR_stat64 195 #endif #ifndef __NR_fstat64 #define __NR_fstat64 197 #endif #ifndef __NR_socket #define __NR_socket 198 #endif #ifndef __NR_getdents64 #define __NR_getdents64 202 #endif #ifndef __NR_gettid #define __NR_gettid 207 #endif #ifndef __NR_futex #define __NR_futex 221 #endif #ifndef __NR_openat #define __NR_openat 286 #endif #ifndef __NR_getcpu #define __NR_getcpu 302 #endif /* End of powerpc defininitions */ #elif defined(__aarch64__) #ifndef __NR_fstatat #define __NR_fstatat 79 #endif /* End of aarch64 defininitions */ #endif /* After forking, we must make sure to only call system calls. */ #if __BOUNDED_POINTERS__ #error "Need to port invocations of syscalls for bounded ptrs" #else /* The core dumper and the thread lister get executed after threads * have been suspended. As a consequence, we cannot call any functions * that acquire locks. Unfortunately, libc wraps most system calls * (e.g. in order to implement pthread_atfork, and to make calls * cancellable), which means we cannot call these functions. Instead, * we have to call syscall() directly. */ #undef LSS_ERRNO #ifdef SYS_ERRNO /* Allow the including file to override the location of errno. This can * be useful when using clone() with the CLONE_VM option. */ #define LSS_ERRNO SYS_ERRNO #else #define LSS_ERRNO errno #endif #undef LSS_INLINE #ifdef SYS_INLINE #define LSS_INLINE SYS_INLINE #else #define LSS_INLINE static inline #endif /* Allow the including file to override the prefix used for all new * system calls. By default, it will be set to "sys_". */ #undef LSS_NAME #ifndef SYS_PREFIX #define LSS_NAME(name) sys_##name #elif SYS_PREFIX < 0 #define LSS_NAME(name) name #elif SYS_PREFIX == 0 #define LSS_NAME(name) sys0_##name #elif SYS_PREFIX == 1 #define LSS_NAME(name) sys1_##name #elif SYS_PREFIX == 2 #define LSS_NAME(name) sys2_##name #elif SYS_PREFIX == 3 #define LSS_NAME(name) sys3_##name #elif SYS_PREFIX == 4 #define LSS_NAME(name) sys4_##name #elif SYS_PREFIX == 5 #define LSS_NAME(name) sys5_##name #elif SYS_PREFIX == 6 #define LSS_NAME(name) sys6_##name #elif SYS_PREFIX == 7 #define LSS_NAME(name) sys7_##name #elif SYS_PREFIX == 8 #define LSS_NAME(name) sys8_##name #elif SYS_PREFIX == 9 #define LSS_NAME(name) sys9_##name #endif #undef LSS_RETURN #if (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \ defined(__aarch64__)) /* Failing system calls return a negative result in the range of * -1..-4095. These are "errno" values with the sign inverted. */ #define LSS_RETURN(type, res) \ do { \ if ((unsigned long)(res) >= (unsigned long)(-4095)) { \ LSS_ERRNO = -(res); \ res = -1; \ } \ return (type) (res); \ } while (0) #elif defined(__mips__) /* On MIPS, failing system calls return -1, and set errno in a * separate CPU register. */ #define LSS_RETURN(type, res, err) \ do { \ if (err) { \ LSS_ERRNO = (res); \ res = -1; \ } \ return (type) (res); \ } while (0) #elif defined(__PPC__) /* On PPC, failing system calls return -1, and set errno in a * separate CPU register. See linux/unistd.h. */ #define LSS_RETURN(type, res, err) \ do { \ if (err & 0x10000000 ) { \ LSS_ERRNO = (res); \ res = -1; \ } \ return (type) (res); \ } while (0) #endif #if defined(__i386__) #if defined(NO_FRAME_POINTER) && (100 * __GNUC__ + __GNUC_MINOR__ >= 404) /* This only works for GCC-4.4 and above -- the first version to use .cfi directives for dwarf unwind info. */ #define CFI_ADJUST_CFA_OFFSET(adjust) \ ".cfi_adjust_cfa_offset " #adjust "\n" #else #define CFI_ADJUST_CFA_OFFSET(adjust) /**/ #endif /* In PIC mode (e.g. when building shared libraries), gcc for i386 * reserves ebx. Unfortunately, most distribution ship with implementations * of _syscallX() which clobber ebx. * Also, most definitions of _syscallX() neglect to mark "memory" as being * clobbered. This causes problems with compilers, that do a better job * at optimizing across __asm__ calls. * So, we just have to redefine all of the _syscallX() macros. */ #undef LSS_BODY #define LSS_BODY(type,args...) \ long __res; \ __asm__ __volatile__("push %%ebx\n" \ CFI_ADJUST_CFA_OFFSET(4) \ "movl %2,%%ebx\n" \ "int $0x80\n" \ "pop %%ebx\n" \ CFI_ADJUST_CFA_OFFSET(-4) \ args \ : "esp", "memory"); \ LSS_RETURN(type,__res) #undef _syscall0 #define _syscall0(type,name) \ type LSS_NAME(name)(void) { \ long __res; \ __asm__ volatile("int $0x80" \ : "=a" (__res) \ : "0" (__NR_##name) \ : "memory"); \ LSS_RETURN(type,__res); \ } #undef _syscall1 #define _syscall1(type,name,type1,arg1) \ type LSS_NAME(name)(type1 arg1) { \ LSS_BODY(type, \ : "=a" (__res) \ : "0" (__NR_##name), "ri" ((long)(arg1))); \ } #undef _syscall2 #define _syscall2(type,name,type1,arg1,type2,arg2) \ type LSS_NAME(name)(type1 arg1,type2 arg2) { \ LSS_BODY(type, \ : "=a" (__res) \ : "0" (__NR_##name),"ri" ((long)(arg1)), "c" ((long)(arg2))); \ } #undef _syscall3 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ type LSS_NAME(name)(type1 arg1,type2 arg2,type3 arg3) { \ LSS_BODY(type, \ : "=a" (__res) \ : "0" (__NR_##name), "ri" ((long)(arg1)), "c" ((long)(arg2)), \ "d" ((long)(arg3))); \ } #undef _syscall4 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ LSS_BODY(type, \ : "=a" (__res) \ : "0" (__NR_##name), "ri" ((long)(arg1)), "c" ((long)(arg2)), \ "d" ((long)(arg3)),"S" ((long)(arg4))); \ } #undef _syscall5 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5) { \ long __res; \ __asm__ __volatile__("push %%ebx\n" \ "movl %2,%%ebx\n" \ "movl %1,%%eax\n" \ "int $0x80\n" \ "pop %%ebx" \ : "=a" (__res) \ : "i" (__NR_##name), "ri" ((long)(arg1)), \ "c" ((long)(arg2)), "d" ((long)(arg3)), \ "S" ((long)(arg4)), "D" ((long)(arg5)) \ : "esp", "memory"); \ LSS_RETURN(type,__res); \ } #undef _syscall6 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5,type6,arg6) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5, type6 arg6) { \ long __res; \ struct { long __a1; long __a6; } __s = { (long)arg1, (long) arg6 }; \ __asm__ __volatile__("push %%ebp\n" \ "push %%ebx\n" \ "movl 4(%2),%%ebp\n" \ "movl 0(%2), %%ebx\n" \ "movl %1,%%eax\n" \ "int $0x80\n" \ "pop %%ebx\n" \ "pop %%ebp" \ : "=a" (__res) \ : "i" (__NR_##name), "0" ((long)(&__s)), \ "c" ((long)(arg2)), "d" ((long)(arg3)), \ "S" ((long)(arg4)), "D" ((long)(arg5)) \ : "esp", "memory"); \ LSS_RETURN(type,__res); \ } LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, int flags, void *arg, int *parent_tidptr, void *newtls, int *child_tidptr) { long __res; __asm__ __volatile__(/* if (fn == NULL) * return -EINVAL; */ "movl %3,%%ecx\n" "jecxz 1f\n" /* if (child_stack == NULL) * return -EINVAL; */ "movl %4,%%ecx\n" "jecxz 1f\n" /* Set up alignment of the child stack: * child_stack = (child_stack & ~0xF) - 20; */ "andl $-16,%%ecx\n" "subl $20,%%ecx\n" /* Push "arg" and "fn" onto the stack that will be * used by the child. */ "movl %6,%%eax\n" "movl %%eax,4(%%ecx)\n" "movl %3,%%eax\n" "movl %%eax,(%%ecx)\n" /* %eax = syscall(%eax = __NR_clone, * %ebx = flags, * %ecx = child_stack, * %edx = parent_tidptr, * %esi = newtls, * %edi = child_tidptr) * Also, make sure that %ebx gets preserved as it is * used in PIC mode. */ "movl %8,%%esi\n" "movl %7,%%edx\n" "movl %5,%%eax\n" "movl %9,%%edi\n" "pushl %%ebx\n" "movl %%eax,%%ebx\n" "movl %2,%%eax\n" "int $0x80\n" /* In the parent: restore %ebx * In the child: move "fn" into %ebx */ "popl %%ebx\n" /* if (%eax != 0) * return %eax; */ "test %%eax,%%eax\n" "jnz 1f\n" /* In the child, now. Terminate frame pointer chain. */ "movl $0,%%ebp\n" /* Call "fn". "arg" is already on the stack. */ "call *%%ebx\n" /* Call _exit(%ebx). Unfortunately older versions * of gcc restrict the number of arguments that can * be passed to asm(). So, we need to hard-code the * system call number. */ "movl %%eax,%%ebx\n" "movl $1,%%eax\n" "int $0x80\n" /* Return to parent. */ "1:\n" : "=a" (__res) : "0"(-EINVAL), "i"(__NR_clone), "m"(fn), "m"(child_stack), "m"(flags), "m"(arg), "m"(parent_tidptr), "m"(newtls), "m"(child_tidptr) : "esp", "memory", "ecx", "edx", "esi", "edi"); LSS_RETURN(int, __res); } LSS_INLINE void (*LSS_NAME(restore_rt)(void))(void) { /* On i386, the kernel does not know how to return from a signal * handler. Instead, it relies on user space to provide a * restorer function that calls the {rt_,}sigreturn() system call. * Unfortunately, we cannot just reference the glibc version of this * function, as glibc goes out of its way to make it inaccessible. */ void (*res)(void); __asm__ __volatile__("call 2f\n" "0:.align 16\n" "1:movl %1,%%eax\n" "int $0x80\n" "2:popl %0\n" "addl $(1b-0b),%0\n" : "=a" (res) : "i" (__NR_rt_sigreturn)); return res; } LSS_INLINE void (*LSS_NAME(restore)(void))(void) { /* On i386, the kernel does not know how to return from a signal * handler. Instead, it relies on user space to provide a * restorer function that calls the {rt_,}sigreturn() system call. * Unfortunately, we cannot just reference the glibc version of this * function, as glibc goes out of its way to make it inaccessible. */ void (*res)(void); __asm__ __volatile__("call 2f\n" "0:.align 16\n" "1:pop %%eax\n" "movl %1,%%eax\n" "int $0x80\n" "2:popl %0\n" "addl $(1b-0b),%0\n" : "=a" (res) : "i" (__NR_sigreturn)); return res; } #elif defined(__x86_64__) /* There are no known problems with any of the _syscallX() macros * currently shipping for x86_64, but we still need to be able to define * our own version so that we can override the location of the errno * location (e.g. when using the clone() system call with the CLONE_VM * option). */ #undef LSS_ENTRYPOINT #define LSS_ENTRYPOINT "syscall\n" /* The x32 ABI has 32 bit longs, but the syscall interface is 64 bit. * We need to explicitly cast to an unsigned 64 bit type to avoid implicit * sign extension. We can't cast pointers directly because those are * 32 bits, and gcc will dump ugly warnings about casting from a pointer * to an integer of a different size. */ #undef LSS_SYSCALL_ARG #define LSS_SYSCALL_ARG(a) ((uint64_t)(uintptr_t)(a)) #undef _LSS_RETURN #define _LSS_RETURN(type, res, cast) \ do { \ if ((uint64_t)(res) >= (uint64_t)(-4095)) { \ LSS_ERRNO = -(res); \ res = -1; \ } \ return (type)(cast)(res); \ } while (0) #undef LSS_RETURN #define LSS_RETURN(type, res) _LSS_RETURN(type, res, uintptr_t) #undef _LSS_BODY #define _LSS_BODY(nr, type, name, cast, ...) \ long long __res; \ __asm__ __volatile__(LSS_BODY_ASM##nr LSS_ENTRYPOINT \ : "=a" (__res) \ : "0" (__NR_##name) LSS_BODY_ARG##nr(__VA_ARGS__) \ : LSS_BODY_CLOBBER##nr "r11", "rcx", "memory"); \ _LSS_RETURN(type, __res, cast) #undef LSS_BODY #define LSS_BODY(nr, type, name, args...) \ _LSS_BODY(nr, type, name, uintptr_t, ## args) #undef LSS_BODY_ASM0 #undef LSS_BODY_ASM1 #undef LSS_BODY_ASM2 #undef LSS_BODY_ASM3 #undef LSS_BODY_ASM4 #undef LSS_BODY_ASM5 #undef LSS_BODY_ASM6 #define LSS_BODY_ASM0 #define LSS_BODY_ASM1 LSS_BODY_ASM0 #define LSS_BODY_ASM2 LSS_BODY_ASM1 #define LSS_BODY_ASM3 LSS_BODY_ASM2 #define LSS_BODY_ASM4 LSS_BODY_ASM3 "movq %5,%%r10;" #define LSS_BODY_ASM5 LSS_BODY_ASM4 "movq %6,%%r8;" #define LSS_BODY_ASM6 LSS_BODY_ASM5 "movq %7,%%r9;" #undef LSS_BODY_CLOBBER0 #undef LSS_BODY_CLOBBER1 #undef LSS_BODY_CLOBBER2 #undef LSS_BODY_CLOBBER3 #undef LSS_BODY_CLOBBER4 #undef LSS_BODY_CLOBBER5 #undef LSS_BODY_CLOBBER6 #define LSS_BODY_CLOBBER0 #define LSS_BODY_CLOBBER1 LSS_BODY_CLOBBER0 #define LSS_BODY_CLOBBER2 LSS_BODY_CLOBBER1 #define LSS_BODY_CLOBBER3 LSS_BODY_CLOBBER2 #define LSS_BODY_CLOBBER4 LSS_BODY_CLOBBER3 "r10", #define LSS_BODY_CLOBBER5 LSS_BODY_CLOBBER4 "r8", #define LSS_BODY_CLOBBER6 LSS_BODY_CLOBBER5 "r9", #undef LSS_BODY_ARG0 #undef LSS_BODY_ARG1 #undef LSS_BODY_ARG2 #undef LSS_BODY_ARG3 #undef LSS_BODY_ARG4 #undef LSS_BODY_ARG5 #undef LSS_BODY_ARG6 #define LSS_BODY_ARG0() #define LSS_BODY_ARG1(arg1) \ LSS_BODY_ARG0(), "D" (arg1) #define LSS_BODY_ARG2(arg1, arg2) \ LSS_BODY_ARG1(arg1), "S" (arg2) #define LSS_BODY_ARG3(arg1, arg2, arg3) \ LSS_BODY_ARG2(arg1, arg2), "d" (arg3) #define LSS_BODY_ARG4(arg1, arg2, arg3, arg4) \ LSS_BODY_ARG3(arg1, arg2, arg3), "r" (arg4) #define LSS_BODY_ARG5(arg1, arg2, arg3, arg4, arg5) \ LSS_BODY_ARG4(arg1, arg2, arg3, arg4), "r" (arg5) #define LSS_BODY_ARG6(arg1, arg2, arg3, arg4, arg5, arg6) \ LSS_BODY_ARG5(arg1, arg2, arg3, arg4, arg5), "r" (arg6) #undef _syscall0 #define _syscall0(type,name) \ type LSS_NAME(name)() { \ LSS_BODY(0, type, name); \ } #undef _syscall1 #define _syscall1(type,name,type1,arg1) \ type LSS_NAME(name)(type1 arg1) { \ LSS_BODY(1, type, name, LSS_SYSCALL_ARG(arg1)); \ } #undef _syscall2 #define _syscall2(type,name,type1,arg1,type2,arg2) \ type LSS_NAME(name)(type1 arg1, type2 arg2) { \ LSS_BODY(2, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2));\ } #undef _syscall3 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \ LSS_BODY(3, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \ LSS_SYSCALL_ARG(arg3)); \ } #undef _syscall4 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ LSS_BODY(4, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \ LSS_SYSCALL_ARG(arg3), LSS_SYSCALL_ARG(arg4));\ } #undef _syscall5 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5) { \ LSS_BODY(5, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \ LSS_SYSCALL_ARG(arg3), LSS_SYSCALL_ARG(arg4), \ LSS_SYSCALL_ARG(arg5)); \ } #undef _syscall6 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5,type6,arg6) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5, type6 arg6) { \ LSS_BODY(6, type, name, LSS_SYSCALL_ARG(arg1), LSS_SYSCALL_ARG(arg2), \ LSS_SYSCALL_ARG(arg3), LSS_SYSCALL_ARG(arg4), \ LSS_SYSCALL_ARG(arg5), LSS_SYSCALL_ARG(arg6));\ } LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, int flags, void *arg, int *parent_tidptr, void *newtls, int *child_tidptr) { long long __res; { __asm__ __volatile__(/* if (fn == NULL) * return -EINVAL; */ "testq %4,%4\n" "jz 1f\n" /* if (child_stack == NULL) * return -EINVAL; */ "testq %5,%5\n" "jz 1f\n" /* Set up alignment of the child stack: * child_stack = (child_stack & ~0xF) - 16; */ "andq $-16,%5\n" "subq $16,%5\n" /* Push "arg" and "fn" onto the stack that will be * used by the child. */ "movq %7,8(%5)\n" "movq %4,0(%5)\n" /* %rax = syscall(%rax = __NR_clone, * %rdi = flags, * %rsi = child_stack, * %rdx = parent_tidptr, * %r8 = new_tls, * %r10 = child_tidptr) */ "movq %2,%%rax\n" "movq %9,%%r8\n" "movq %10,%%r10\n" "syscall\n" /* if (%rax != 0) * return; */ "testq %%rax,%%rax\n" "jnz 1f\n" /* In the child. Terminate frame pointer chain. */ "xorq %%rbp,%%rbp\n" /* Call "fn(arg)". */ "popq %%rax\n" "popq %%rdi\n" "call *%%rax\n" /* Call _exit(%ebx). */ "movq %%rax,%%rdi\n" "movq %3,%%rax\n" "syscall\n" /* Return to parent. */ "1:\n" : "=a" (__res) : "0"(-EINVAL), "i"(__NR_clone), "i"(__NR_exit), "r"(LSS_SYSCALL_ARG(fn)), "S"(LSS_SYSCALL_ARG(child_stack)), "D"(LSS_SYSCALL_ARG(flags)), "r"(LSS_SYSCALL_ARG(arg)), "d"(LSS_SYSCALL_ARG(parent_tidptr)), "r"(LSS_SYSCALL_ARG(newtls)), "r"(LSS_SYSCALL_ARG(child_tidptr)) : "rsp", "memory", "r8", "r10", "r11", "rcx"); } LSS_RETURN(int, __res); } LSS_INLINE void (*LSS_NAME(restore_rt)(void))(void) { /* On x86-64, the kernel does not know how to return from * a signal handler. Instead, it relies on user space to provide a * restorer function that calls the rt_sigreturn() system call. * Unfortunately, we cannot just reference the glibc version of this * function, as glibc goes out of its way to make it inaccessible. */ long long res; __asm__ __volatile__("call 2f\n" "0:.align 16\n" "1:movq %1,%%rax\n" "syscall\n" "2:popq %0\n" "addq $(1b-0b),%0\n" : "=a" (res) : "i" (__NR_rt_sigreturn)); return (void (*)(void))(uintptr_t)res; } #elif defined(__arm__) /* Most definitions of _syscallX() neglect to mark "memory" as being * clobbered. This causes problems with compilers, that do a better job * at optimizing across __asm__ calls. * So, we just have to redefine all fo the _syscallX() macros. */ #undef LSS_REG #define LSS_REG(r,a) register long __r##r __asm__("r"#r) = (long)a /* r0..r3 are scratch registers and not preserved across function * calls. We need to first evaluate the first 4 syscall arguments * and store them on stack. They must be loaded into r0..r3 after * all function calls to avoid r0..r3 being clobbered. */ #undef LSS_SAVE_ARG #define LSS_SAVE_ARG(r,a) long __tmp##r = (long)a #undef LSS_LOAD_ARG #define LSS_LOAD_ARG(r) register long __r##r __asm__("r"#r) = __tmp##r #undef LSS_BODY #define LSS_BODY(type, name, args...) \ register long __res_r0 __asm__("r0"); \ long __res; \ __SYS_REG(name) \ __asm__ __volatile__ (__syscall_safe(name) \ : "=r"(__res_r0) \ : __SYS_REG_LIST(args) \ : "lr", "memory"); \ __res = __res_r0; \ LSS_RETURN(type, __res) #undef _syscall0 #define _syscall0(type, name) \ type LSS_NAME(name)() { \ LSS_BODY(type, name); \ } #undef _syscall1 #define _syscall1(type, name, type1, arg1) \ type LSS_NAME(name)(type1 arg1) { \ /* There is no need for using a volatile temp. */ \ LSS_REG(0, arg1); \ LSS_BODY(type, name, "r"(__r0)); \ } #undef _syscall2 #define _syscall2(type, name, type1, arg1, type2, arg2) \ type LSS_NAME(name)(type1 arg1, type2 arg2) { \ LSS_SAVE_ARG(0, arg1); \ LSS_SAVE_ARG(1, arg2); \ LSS_LOAD_ARG(0); \ LSS_LOAD_ARG(1); \ LSS_BODY(type, name, "r"(__r0), "r"(__r1)); \ } #undef _syscall3 #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \ LSS_SAVE_ARG(0, arg1); \ LSS_SAVE_ARG(1, arg2); \ LSS_SAVE_ARG(2, arg3); \ LSS_LOAD_ARG(0); \ LSS_LOAD_ARG(1); \ LSS_LOAD_ARG(2); \ LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2)); \ } #undef _syscall4 #define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ LSS_SAVE_ARG(0, arg1); \ LSS_SAVE_ARG(1, arg2); \ LSS_SAVE_ARG(2, arg3); \ LSS_SAVE_ARG(3, arg4); \ LSS_LOAD_ARG(0); \ LSS_LOAD_ARG(1); \ LSS_LOAD_ARG(2); \ LSS_LOAD_ARG(3); \ LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3)); \ } #undef _syscall5 #define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4, type5, arg5) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5) { \ LSS_SAVE_ARG(0, arg1); \ LSS_SAVE_ARG(1, arg2); \ LSS_SAVE_ARG(2, arg3); \ LSS_SAVE_ARG(3, arg4); \ LSS_REG(4, arg5); \ LSS_LOAD_ARG(0); \ LSS_LOAD_ARG(1); \ LSS_LOAD_ARG(2); \ LSS_LOAD_ARG(3); \ LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3), \ "r"(__r4)); \ } #undef _syscall6 #define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4, type5, arg5, type6, arg6) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5, type6 arg6) { \ LSS_SAVE_ARG(0, arg1); \ LSS_SAVE_ARG(1, arg2); \ LSS_SAVE_ARG(2, arg3); \ LSS_SAVE_ARG(3, arg4); \ LSS_REG(4, arg5); \ LSS_REG(5, arg6); \ LSS_LOAD_ARG(0); \ LSS_LOAD_ARG(1); \ LSS_LOAD_ARG(2); \ LSS_LOAD_ARG(3); \ LSS_BODY(type, name, "r"(__r0), "r"(__r1), "r"(__r2), "r"(__r3), \ "r"(__r4), "r"(__r5)); \ } LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, int flags, void *arg, int *parent_tidptr, void *newtls, int *child_tidptr) { register long __res __asm__("r5"); { if (fn == NULL || child_stack == NULL) { __res = -EINVAL; goto clone_exit; } /* stash first 4 arguments on stack first because we can only load * them after all function calls. */ int tmp_flags = flags; int * tmp_stack = (int*) child_stack; void * tmp_ptid = parent_tidptr; void * tmp_tls = newtls; register int *__ctid __asm__("r4") = child_tidptr; /* Push "arg" and "fn" onto the stack that will be * used by the child. */ *(--tmp_stack) = (int) arg; *(--tmp_stack) = (int) fn; /* We must load r0..r3 last after all possible function calls. */ register int __flags __asm__("r0") = tmp_flags; register void *__stack __asm__("r1") = tmp_stack; register void *__ptid __asm__("r2") = tmp_ptid; register void *__tls __asm__("r3") = tmp_tls; /* %r0 = syscall(%r0 = flags, * %r1 = child_stack, * %r2 = parent_tidptr, * %r3 = newtls, * %r4 = child_tidptr) */ __SYS_REG(clone) __asm__ __volatile__(/* %r0 = syscall(%r0 = flags, * %r1 = child_stack, * %r2 = parent_tidptr, * %r3 = newtls, * %r4 = child_tidptr) */ "push {r7}\n" "mov r7,%1\n" __syscall(clone)"\n" /* if (%r0 != 0) * return %r0; */ "movs %0,r0\n" "bne 1f\n" /* In the child, now. Call "fn(arg)". */ "ldr r0,[sp, #4]\n" "mov lr,pc\n" "ldr pc,[sp]\n" /* Call _exit(%r0), which never returns. We only * need to set r7 for EABI syscall ABI but we do * this always to simplify code sharing between * old and new syscall ABIs. */ "mov r7,%2\n" __syscall(exit)"\n" /* Pop r7 from the stack only in the parent. */ "1: pop {r7}\n" : "=r" (__res) : "r"(__sysreg), "i"(__NR_exit), "r"(__stack), "r"(__flags), "r"(__ptid), "r"(__tls), "r"(__ctid) : "cc", "lr", "memory"); } clone_exit: LSS_RETURN(int, __res); } #elif defined(__mips__) #undef LSS_REG #define LSS_REG(r,a) register unsigned long __r##r __asm__("$"#r) = \ (unsigned long)(a) #if _MIPS_SIM == _MIPS_SIM_ABI32 // See http://sources.redhat.com/ml/libc-alpha/2004-10/msg00050.html // or http://www.linux-mips.org/archives/linux-mips/2004-10/msg00142.html #define MIPS_SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12",\ "$13", "$14", "$15", "$24", "$25", "memory" #else #define MIPS_SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \ "$14", "$15", "$24", "$25", "memory" #endif #undef LSS_BODY #define LSS_BODY(type,name,r7,...) \ register unsigned long __v0 __asm__("$2") = __NR_##name; \ __asm__ __volatile__ ("syscall\n" \ : "=&r"(__v0), r7 (__r7) \ : "0"(__v0), ##__VA_ARGS__ \ : MIPS_SYSCALL_CLOBBERS); \ LSS_RETURN(type, __v0, __r7) #undef _syscall0 #define _syscall0(type, name) \ type LSS_NAME(name)() { \ register unsigned long __r7 __asm__("$7"); \ LSS_BODY(type, name, "=r"); \ } #undef _syscall1 #define _syscall1(type, name, type1, arg1) \ type LSS_NAME(name)(type1 arg1) { \ register unsigned long __r7 __asm__("$7"); \ LSS_REG(4, arg1); LSS_BODY(type, name, "=r", "r"(__r4)); \ } #undef _syscall2 #define _syscall2(type, name, type1, arg1, type2, arg2) \ type LSS_NAME(name)(type1 arg1, type2 arg2) { \ register unsigned long __r7 __asm__("$7"); \ LSS_REG(4, arg1); LSS_REG(5, arg2); \ LSS_BODY(type, name, "=r", "r"(__r4), "r"(__r5)); \ } #undef _syscall3 #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \ register unsigned long __r7 __asm__("$7"); \ LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3); \ LSS_BODY(type, name, "=r", "r"(__r4), "r"(__r5), "r"(__r6)); \ } #undef _syscall4 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3); \ LSS_REG(7, arg4); \ LSS_BODY(type, name, "+r", "r"(__r4), "r"(__r5), "r"(__r6)); \ } #undef _syscall5 #if _MIPS_SIM == _MIPS_SIM_ABI32 /* The old 32bit MIPS system call API passes the fifth and sixth argument * on the stack, whereas the new APIs use registers "r8" and "r9". */ #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5) { \ LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3); \ LSS_REG(7, arg4); \ register unsigned long __v0 __asm__("$2"); \ __asm__ __volatile__ (".set noreorder\n" \ "lw $2, %6\n" \ "subu $29, 32\n" \ "sw $2, 16($29)\n" \ "li $2, %2\n" \ "syscall\n" \ "addiu $29, 32\n" \ ".set reorder\n" \ : "=&r"(__v0), "+r" (__r7) \ : "i" (__NR_##name), "r"(__r4), "r"(__r5), \ "r"(__r6), "m" ((unsigned long)arg5) \ : MIPS_SYSCALL_CLOBBERS); \ LSS_RETURN(type, __v0, __r7); \ } #else #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5) { \ LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3); \ LSS_REG(7, arg4); LSS_REG(8, arg5); \ LSS_BODY(type, name, "+r", "r"(__r4), "r"(__r5), "r"(__r6), \ "r"(__r8)); \ } #endif #undef _syscall6 #if _MIPS_SIM == _MIPS_SIM_ABI32 /* The old 32bit MIPS system call API passes the fifth and sixth argument * on the stack, whereas the new APIs use registers "r8" and "r9". */ #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5,type6,arg6) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5, type6 arg6) { \ LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3); \ LSS_REG(7, arg4); \ register unsigned long __v0 __asm__("$2"); \ __asm__ __volatile__ (".set noreorder\n" \ "lw $2, %6\n" \ "lw $8, %7\n" \ "subu $29, 32\n" \ "sw $2, 16($29)\n" \ "sw $8, 20($29)\n" \ "li $2, %2\n" \ "syscall\n" \ "addiu $29, 32\n" \ ".set reorder\n" \ : "=&r"(__v0), "+r" (__r7) \ : "i" (__NR_##name), "r"(__r4), "r"(__r5), \ "r"(__r6), "r" ((unsigned long)arg5), \ "r" ((unsigned long)arg6) \ : MIPS_SYSCALL_CLOBBERS); \ LSS_RETURN(type, __v0, __r7); \ } #else #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5,type6,arg6) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5,type6 arg6) { \ LSS_REG(4, arg1); LSS_REG(5, arg2); LSS_REG(6, arg3); \ LSS_REG(7, arg4); LSS_REG(8, arg5); LSS_REG(9, arg6); \ LSS_BODY(type, name, "+r", "r"(__r4), "r"(__r5), "r"(__r6), \ "r"(__r8), "r"(__r9)); \ } #endif LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, int flags, void *arg, int *parent_tidptr, void *newtls, int *child_tidptr) { register unsigned long __v0 __asm__("$2"); register unsigned long __r7 __asm__("$7") = (unsigned long)newtls; { register int __flags __asm__("$4") = flags; register void *__stack __asm__("$5") = child_stack; register void *__ptid __asm__("$6") = parent_tidptr; register int *__ctid __asm__("$8") = child_tidptr; __asm__ __volatile__( #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32 "subu $29,24\n" #elif _MIPS_SIM == _MIPS_SIM_NABI32 "sub $29,16\n" #else "dsubu $29,16\n" #endif /* if (fn == NULL || child_stack == NULL) * return -EINVAL; */ "li %0,%2\n" "beqz %5,1f\n" "beqz %6,1f\n" /* Push "arg" and "fn" onto the stack that will be * used by the child. */ #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32 "subu %6,32\n" "sw %5,0(%6)\n" "sw %8,4(%6)\n" #elif _MIPS_SIM == _MIPS_SIM_NABI32 "sub %6,32\n" "sw %5,0(%6)\n" "sw %8,8(%6)\n" #else "dsubu %6,32\n" "sd %5,0(%6)\n" "sd %8,8(%6)\n" #endif /* $7 = syscall($4 = flags, * $5 = child_stack, * $6 = parent_tidptr, * $7 = newtls, * $8 = child_tidptr) */ "li $2,%3\n" "syscall\n" /* if ($7 != 0) * return $2; */ "bnez $7,1f\n" "bnez $2,1f\n" /* In the child, now. Call "fn(arg)". */ #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32 "lw $25,0($29)\n" "lw $4,4($29)\n" #elif _MIPS_SIM == _MIPS_SIM_NABI32 "lw $25,0($29)\n" "lw $4,8($29)\n" #else "ld $25,0($29)\n" "ld $4,8($29)\n" #endif "jalr $25\n" /* Call _exit($2) */ "move $4,$2\n" "li $2,%4\n" "syscall\n" "1:\n" #if _MIPS_SIM == _MIPS_SIM_ABI32 && _MIPS_SZPTR == 32 "addu $29, 24\n" #elif _MIPS_SIM == _MIPS_SIM_NABI32 "add $29, 16\n" #else "daddu $29,16\n" #endif : "=&r" (__v0), "=r" (__r7) : "i"(-EINVAL), "i"(__NR_clone), "i"(__NR_exit), "r"(fn), "r"(__stack), "r"(__flags), "r"(arg), "r"(__ptid), "r"(__r7), "r"(__ctid) : "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24", "memory"); } LSS_RETURN(int, __v0, __r7); } #elif defined (__PPC__) #undef LSS_LOADARGS_0 #define LSS_LOADARGS_0(name, dummy...) \ __sc_0 = __NR_##name #undef LSS_LOADARGS_1 #define LSS_LOADARGS_1(name, arg1) \ LSS_LOADARGS_0(name); \ __sc_3 = (unsigned long) (arg1) #undef LSS_LOADARGS_2 #define LSS_LOADARGS_2(name, arg1, arg2) \ LSS_LOADARGS_1(name, arg1); \ __sc_4 = (unsigned long) (arg2) #undef LSS_LOADARGS_3 #define LSS_LOADARGS_3(name, arg1, arg2, arg3) \ LSS_LOADARGS_2(name, arg1, arg2); \ __sc_5 = (unsigned long) (arg3) #undef LSS_LOADARGS_4 #define LSS_LOADARGS_4(name, arg1, arg2, arg3, arg4) \ LSS_LOADARGS_3(name, arg1, arg2, arg3); \ __sc_6 = (unsigned long) (arg4) #undef LSS_LOADARGS_5 #define LSS_LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5) \ LSS_LOADARGS_4(name, arg1, arg2, arg3, arg4); \ __sc_7 = (unsigned long) (arg5) #undef LSS_LOADARGS_6 #define LSS_LOADARGS_6(name, arg1, arg2, arg3, arg4, arg5, arg6) \ LSS_LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5); \ __sc_8 = (unsigned long) (arg6) #undef LSS_ASMINPUT_0 #define LSS_ASMINPUT_0 "0" (__sc_0) #undef LSS_ASMINPUT_1 #define LSS_ASMINPUT_1 LSS_ASMINPUT_0, "1" (__sc_3) #undef LSS_ASMINPUT_2 #define LSS_ASMINPUT_2 LSS_ASMINPUT_1, "2" (__sc_4) #undef LSS_ASMINPUT_3 #define LSS_ASMINPUT_3 LSS_ASMINPUT_2, "3" (__sc_5) #undef LSS_ASMINPUT_4 #define LSS_ASMINPUT_4 LSS_ASMINPUT_3, "4" (__sc_6) #undef LSS_ASMINPUT_5 #define LSS_ASMINPUT_5 LSS_ASMINPUT_4, "5" (__sc_7) #undef LSS_ASMINPUT_6 #define LSS_ASMINPUT_6 LSS_ASMINPUT_5, "6" (__sc_8) #undef LSS_BODY #define LSS_BODY(nr, type, name, args...) \ long __sc_ret, __sc_err; \ { \ register unsigned long __sc_0 __asm__ ("r0"); \ register unsigned long __sc_3 __asm__ ("r3"); \ register unsigned long __sc_4 __asm__ ("r4"); \ register unsigned long __sc_5 __asm__ ("r5"); \ register unsigned long __sc_6 __asm__ ("r6"); \ register unsigned long __sc_7 __asm__ ("r7"); \ register unsigned long __sc_8 __asm__ ("r8"); \ \ LSS_LOADARGS_##nr(name, args); \ __asm__ __volatile__ \ ("sc\n\t" \ "mfcr %0" \ : "=&r" (__sc_0), \ "=&r" (__sc_3), "=&r" (__sc_4), \ "=&r" (__sc_5), "=&r" (__sc_6), \ "=&r" (__sc_7), "=&r" (__sc_8) \ : LSS_ASMINPUT_##nr \ : "cr0", "ctr", "memory", \ "r9", "r10", "r11", "r12"); \ __sc_ret = __sc_3; \ __sc_err = __sc_0; \ } \ LSS_RETURN(type, __sc_ret, __sc_err) #undef _syscall0 #define _syscall0(type, name) \ type LSS_NAME(name)(void) { \ LSS_BODY(0, type, name); \ } #undef _syscall1 #define _syscall1(type, name, type1, arg1) \ type LSS_NAME(name)(type1 arg1) { \ LSS_BODY(1, type, name, arg1); \ } #undef _syscall2 #define _syscall2(type, name, type1, arg1, type2, arg2) \ type LSS_NAME(name)(type1 arg1, type2 arg2) { \ LSS_BODY(2, type, name, arg1, arg2); \ } #undef _syscall3 #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \ LSS_BODY(3, type, name, arg1, arg2, arg3); \ } #undef _syscall4 #define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ LSS_BODY(4, type, name, arg1, arg2, arg3, arg4); \ } #undef _syscall5 #define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4, type5, arg5) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5) { \ LSS_BODY(5, type, name, arg1, arg2, arg3, arg4, arg5); \ } #undef _syscall6 #define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4, type5, arg5, type6, arg6) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5, type6 arg6) { \ LSS_BODY(6, type, name, arg1, arg2, arg3, arg4, arg5, arg6); \ } /* clone function adapted from glibc 2.18 clone.S */ LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, int flags, void *arg, int *parent_tidptr, void *newtls, int *child_tidptr) { long __ret, __err; { #if defined(__PPC64__) /* Stack frame offsets. */ #if _CALL_ELF != 2 #define FRAME_MIN_SIZE 112 #define FRAME_TOC_SAVE 40 #else #define FRAME_MIN_SIZE 32 #define FRAME_TOC_SAVE 24 #endif register int (*__fn)(void *) __asm__ ("r3") = fn; register void *__cstack __asm__ ("r4") = child_stack; register int __flags __asm__ ("r5") = flags; register void * __arg __asm__ ("r6") = arg; register int * __ptidptr __asm__ ("r7") = parent_tidptr; register void * __newtls __asm__ ("r8") = newtls; register int * __ctidptr __asm__ ("r9") = child_tidptr; __asm__ __volatile__( /* check for fn == NULL * and child_stack == NULL */ "cmpdi cr0, %6, 0\n\t" "cmpdi cr1, %7, 0\n\t" "cror cr0*4+eq, cr1*4+eq, cr0*4+eq\n\t" "beq- cr0, 1f\n\t" /* set up stack frame for child */ "clrrdi %7, %7, 4\n\t" "li 0, 0\n\t" "stdu 0, -%13(%7)\n\t" /* fn, arg, child_stack are saved acrVoss the syscall */ "mr 28, %6\n\t" "mr 29, %7\n\t" "mr 27, %9\n\t" /* syscall r3 == flags r4 == child_stack r5 == parent_tidptr r6 == newtls r7 == child_tidptr */ "mr 3, %8\n\t" "mr 5, %10\n\t" "mr 6, %11\n\t" "mr 7, %12\n\t" "li 0, %4\n\t" "sc\n\t" /* Test if syscall was successful */ "cmpdi cr1, 3, 0\n\t" "crandc cr1*4+eq, cr1*4+eq, cr0*4+so\n\t" "bne- cr1, 1f\n\t" /* Do the function call */ "std 2, %14(1)\n\t" #if _CALL_ELF != 2 "ld 0, 0(28)\n\t" "ld 2, 8(28)\n\t" "mtctr 0\n\t" #else "mr 12, 28\n\t" "mtctr 12\n\t" #endif "mr 3, 27\n\t" "bctrl\n\t" "ld 2, %14(1)\n\t" /* Call _exit(r3) */ "li 0, %5\n\t" "sc\n\t" /* Return to parent */ "1:\n\t" "mr %0, 3\n\t" : "=r" (__ret), "=r" (__err) : "0" (-1), "i" (EINVAL), "i" (__NR_clone), "i" (__NR_exit), "r" (__fn), "r" (__cstack), "r" (__flags), "r" (__arg), "r" (__ptidptr), "r" (__newtls), "r" (__ctidptr), "i" (FRAME_MIN_SIZE), "i" (FRAME_TOC_SAVE) : "cr0", "cr1", "memory", "ctr", "r0", "r29", "r27", "r28"); #else register int (*__fn)(void *) __asm__ ("r8") = fn; register void *__cstack __asm__ ("r4") = child_stack; register int __flags __asm__ ("r3") = flags; register void * __arg __asm__ ("r9") = arg; register int * __ptidptr __asm__ ("r5") = parent_tidptr; register void * __newtls __asm__ ("r6") = newtls; register int * __ctidptr __asm__ ("r7") = child_tidptr; __asm__ __volatile__( /* check for fn == NULL * and child_stack == NULL */ "cmpwi cr0, %6, 0\n\t" "cmpwi cr1, %7, 0\n\t" "cror cr0*4+eq, cr1*4+eq, cr0*4+eq\n\t" "beq- cr0, 1f\n\t" /* set up stack frame for child */ "clrrwi %7, %7, 4\n\t" "li 0, 0\n\t" "stwu 0, -16(%7)\n\t" /* fn, arg, child_stack are saved across the syscall: r28-30 */ "mr 28, %6\n\t" "mr 29, %7\n\t" "mr 27, %9\n\t" /* syscall */ "li 0, %4\n\t" /* flags already in r3 * child_stack already in r4 * ptidptr already in r5 * newtls already in r6 * ctidptr already in r7 */ "sc\n\t" /* Test if syscall was successful */ "cmpwi cr1, 3, 0\n\t" "crandc cr1*4+eq, cr1*4+eq, cr0*4+so\n\t" "bne- cr1, 1f\n\t" /* Do the function call */ "mtctr 28\n\t" "mr 3, 27\n\t" "bctrl\n\t" /* Call _exit(r3) */ "li 0, %5\n\t" "sc\n\t" /* Return to parent */ "1:\n" "mfcr %1\n\t" "mr %0, 3\n\t" : "=r" (__ret), "=r" (__err) : "0" (-1), "1" (EINVAL), "i" (__NR_clone), "i" (__NR_exit), "r" (__fn), "r" (__cstack), "r" (__flags), "r" (__arg), "r" (__ptidptr), "r" (__newtls), "r" (__ctidptr) : "cr0", "cr1", "memory", "ctr", "r0", "r29", "r27", "r28"); #endif } LSS_RETURN(int, __ret, __err); } #elif defined(__aarch64__) #undef LSS_REG #define LSS_REG(r,a) register long __x##r __asm__("x"#r) = (long)a #undef LSS_BODY #define LSS_BODY(type,name,args...) \ register long __res_x0 __asm__("x0"); \ long __res; \ __asm__ __volatile__ ("mov x8, %1\n" \ "svc 0x0\n" \ : "=r"(__res_x0) \ : "i"(__NR_##name) , ## args \ : "memory"); \ __res = __res_x0; \ LSS_RETURN(type, __res) #undef _syscall0 #define _syscall0(type, name) \ type LSS_NAME(name)(void) { \ LSS_BODY(type, name); \ } #undef _syscall1 #define _syscall1(type, name, type1, arg1) \ type LSS_NAME(name)(type1 arg1) { \ LSS_REG(0, arg1); LSS_BODY(type, name, "r"(__x0)); \ } #undef _syscall2 #define _syscall2(type, name, type1, arg1, type2, arg2) \ type LSS_NAME(name)(type1 arg1, type2 arg2) { \ LSS_REG(0, arg1); LSS_REG(1, arg2); \ LSS_BODY(type, name, "r"(__x0), "r"(__x1)); \ } #undef _syscall3 #define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3) { \ LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ LSS_BODY(type, name, "r"(__x0), "r"(__x1), "r"(__x2)); \ } #undef _syscall4 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \ LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ LSS_REG(3, arg4); \ LSS_BODY(type, name, "r"(__x0), "r"(__x1), "r"(__x2), "r"(__x3)); \ } #undef _syscall5 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5) { \ LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ LSS_REG(3, arg4); LSS_REG(4, arg5); \ LSS_BODY(type, name, "r"(__x0), "r"(__x1), "r"(__x2), "r"(__x3), \ "r"(__x4)); \ } #undef _syscall6 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ type5,arg5,type6,arg6) \ type LSS_NAME(name)(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \ type5 arg5, type6 arg6) { \ LSS_REG(0, arg1); LSS_REG(1, arg2); LSS_REG(2, arg3); \ LSS_REG(3, arg4); LSS_REG(4, arg5); LSS_REG(5, arg6); \ LSS_BODY(type, name, "r"(__x0), "r"(__x1), "x"(__x2), "r"(__x3), \ "r"(__x4), "r"(__x5)); \ } /* clone function adapted from glibc 2.18 clone.S */ LSS_INLINE int LSS_NAME(clone)(int (*fn)(void *), void *child_stack, int flags, void *arg, int *parent_tidptr, void *newtls, int *child_tidptr) { long __res; { register int (*__fn)(void *) __asm__("x0") = fn; register void *__stack __asm__("x1") = child_stack; register int __flags __asm__("x2") = flags; register void *__arg __asm__("x3") = arg; register int *__ptid __asm__("x4") = parent_tidptr; register void *__tls __asm__("x5") = newtls; register int *__ctid __asm__("x6") = child_tidptr; __asm__ __volatile__(/* if (fn == NULL || child_stack == NULL) * return -EINVAL; */ "cbz x0,1f\n" "cbz x1,1f\n" /* Push "arg" and "fn" onto the stack that will be * used by the child. */ "stp x0,x3, [x1, #-16]!\n" "mov x0,x2\n" /* flags */ "mov x2,x4\n" /* ptid */ "mov x3,x5\n" /* tls */ "mov x4,x6\n" /* ctid */ "mov x8,%9\n" /* clone */ "svc 0x0\n" /* if (%r0 != 0) * return %r0; */ "cmp x0, #0\n" "bne 2f\n" /* In the child, now. Call "fn(arg)". */ "ldp x1, x0, [sp], #16\n" "blr x1\n" /* Call _exit(%r0). */ "mov x8, %10\n" "svc 0x0\n" "1:\n" "mov x8, %1\n" "2:\n" : "=r" (__res) : "i"(-EINVAL), "r"(__fn), "r"(__stack), "r"(__flags), "r"(__arg), "r"(__ptid), "r"(__tls), "r"(__ctid), "i"(__NR_clone), "i"(__NR_exit) : "x30", "memory"); } LSS_RETURN(int, __res); } #endif #define __NR__exit __NR_exit #define __NR__gettid __NR_gettid #define __NR__mremap __NR_mremap LSS_INLINE _syscall1(int, close, int, f) LSS_INLINE _syscall1(int, _exit, int, e) LSS_INLINE _syscall3(int, fcntl, int, f, int, c, long, a) LSS_INLINE _syscall2(int, fstat, int, f, struct kernel_stat*, b) LSS_INLINE _syscall4(int, futex, int*, a, int, o, int, v, struct kernel_timespec*, t) #ifdef __NR_getdents64 LSS_INLINE _syscall3(int, getdents64, int, f, struct kernel_dirent64*, d, int, c) #define KERNEL_DIRENT kernel_dirent64 #define GETDENTS sys_getdents64 #else LSS_INLINE _syscall3(int, getdents, int, f, struct kernel_dirent*, d, int, c) #define KERNEL_DIRENT kernel_dirent #define GETDENTS sys_getdents #endif LSS_INLINE _syscall0(pid_t, getpid) LSS_INLINE _syscall0(pid_t, getppid) LSS_INLINE _syscall0(pid_t, _gettid) LSS_INLINE _syscall2(int, kill, pid_t, p, int, s) #if defined(__x86_64__) /* Need to make sure off_t isn't truncated to 32-bits under x32. */ LSS_INLINE off_t LSS_NAME(lseek)(int f, off_t o, int w) { _LSS_BODY(3, off_t, lseek, off_t, LSS_SYSCALL_ARG(f), (uint64_t)(o), LSS_SYSCALL_ARG(w)); } #else LSS_INLINE _syscall3(off_t, lseek, int, f, off_t, o, int, w) #endif LSS_INLINE _syscall2(int, munmap, void*, s, size_t, l) LSS_INLINE _syscall5(void*, _mremap, void*, o, size_t, os, size_t, ns, unsigned long, f, void *, a) LSS_INLINE _syscall2(int, prctl, int, o, long, a) LSS_INLINE _syscall4(long, ptrace, int, r, pid_t, p, void *, a, void *, d) LSS_INLINE _syscall3(ssize_t, read, int, f, void *, b, size_t, c) LSS_INLINE _syscall4(int, rt_sigaction, int, s, const struct kernel_sigaction*, a, struct kernel_sigaction*, o, size_t, c) LSS_INLINE _syscall4(int, rt_sigprocmask, int, h, const struct kernel_sigset_t*, s, struct kernel_sigset_t*, o, size_t, c); LSS_INLINE _syscall0(int, sched_yield) LSS_INLINE _syscall2(int, sigaltstack, const stack_t*, s, const stack_t*, o) #if defined(__NR_fstatat) LSS_INLINE _syscall4(int, fstatat, int, d, const char *, p, struct kernel_stat*, b, int, flags) LSS_INLINE int LSS_NAME(stat)(const char* p, struct kernel_stat* b) { return LSS_NAME(fstatat)(AT_FDCWD,p,b,0); } #else LSS_INLINE _syscall2(int, stat, const char*, f, struct kernel_stat*, b) #endif LSS_INLINE _syscall3(ssize_t, write, int, f, const void *, b, size_t, c) #if defined(__NR_getcpu) LSS_INLINE _syscall3(long, getcpu, unsigned *, cpu, unsigned *, node, void *, unused); #endif #if defined(__x86_64__) || defined(__aarch64__) || \ (defined(__mips__) && _MIPS_SIM != _MIPS_SIM_ABI32) LSS_INLINE _syscall3(int, socket, int, d, int, t, int, p) #endif #if defined(__x86_64__) /* Need to make sure __off64_t isn't truncated to 32-bits under x32. */ LSS_INLINE void* LSS_NAME(mmap)(void *s, size_t l, int p, int f, int d, __off64_t o) { LSS_BODY(6, void*, mmap, LSS_SYSCALL_ARG(s), LSS_SYSCALL_ARG(l), LSS_SYSCALL_ARG(p), LSS_SYSCALL_ARG(f), LSS_SYSCALL_ARG(d), (uint64_t)(o)); } LSS_INLINE int LSS_NAME(sigaction)(int signum, const struct kernel_sigaction *act, struct kernel_sigaction *oldact) { /* On x86_64, the kernel requires us to always set our own * SA_RESTORER in order to be able to return from a signal handler. * This function must have a "magic" signature that the "gdb" * (and maybe the kernel?) can recognize. */ if (act != NULL && !(act->sa_flags & SA_RESTORER)) { struct kernel_sigaction a = *act; a.sa_flags |= SA_RESTORER; a.sa_restorer = LSS_NAME(restore_rt)(); return LSS_NAME(rt_sigaction)(signum, &a, oldact, (KERNEL_NSIG+7)/8); } else { return LSS_NAME(rt_sigaction)(signum, act, oldact, (KERNEL_NSIG+7)/8); } } LSS_INLINE int LSS_NAME(sigprocmask)(int how, const struct kernel_sigset_t *set, struct kernel_sigset_t *oldset) { return LSS_NAME(rt_sigprocmask)(how, set, oldset, (KERNEL_NSIG+7)/8); } #endif #if (defined(__aarch64__)) || \ (defined(__mips__) && (_MIPS_ISA == _MIPS_ISA_MIPS64)) LSS_INLINE _syscall6(void*, mmap, void*, s, size_t, l, int, p, int, f, int, d, __off64_t, o) LSS_INLINE int LSS_NAME(sigaction)(int signum, const struct kernel_sigaction *act, struct kernel_sigaction *oldact) { return LSS_NAME(rt_sigaction)(signum, act, oldact, (KERNEL_NSIG+7)/8); } LSS_INLINE int LSS_NAME(sigprocmask)(int how, const struct kernel_sigset_t *set, struct kernel_sigset_t *oldset) { return LSS_NAME(rt_sigprocmask)(how, set, oldset, (KERNEL_NSIG+7)/8); } #endif #ifdef __NR_wait4 LSS_INLINE _syscall4(pid_t, wait4, pid_t, p, int*, s, int, o, struct kernel_rusage*, r) LSS_INLINE pid_t LSS_NAME(waitpid)(pid_t pid, int *status, int options){ return LSS_NAME(wait4)(pid, status, options, 0); } #else LSS_INLINE _syscall3(pid_t, waitpid, pid_t, p, int*, s, int, o) #endif #ifdef __NR_openat LSS_INLINE _syscall4(int, openat, int, d, const char *, p, int, f, int, m) LSS_INLINE int LSS_NAME(open)(const char* p, int f, int m) { return LSS_NAME(openat)(AT_FDCWD,p,f,m ); } #else LSS_INLINE _syscall3(int, open, const char*, p, int, f, int, m) #endif LSS_INLINE int LSS_NAME(sigemptyset)(struct kernel_sigset_t *set) { memset(&set->sig, 0, sizeof(set->sig)); return 0; } LSS_INLINE int LSS_NAME(sigfillset)(struct kernel_sigset_t *set) { memset(&set->sig, -1, sizeof(set->sig)); return 0; } LSS_INLINE int LSS_NAME(sigaddset)(struct kernel_sigset_t *set, int signum) { if (signum < 1 || signum > (int)(8*sizeof(set->sig))) { LSS_ERRNO = EINVAL; return -1; } else { set->sig[(signum - 1)/(8*sizeof(set->sig[0]))] |= 1UL << ((signum - 1) % (8*sizeof(set->sig[0]))); return 0; } } LSS_INLINE int LSS_NAME(sigdelset)(struct kernel_sigset_t *set, int signum) { if (signum < 1 || signum > (int)(8*sizeof(set->sig))) { LSS_ERRNO = EINVAL; return -1; } else { set->sig[(signum - 1)/(8*sizeof(set->sig[0]))] &= ~(1UL << ((signum - 1) % (8*sizeof(set->sig[0])))); return 0; } } #if defined(__i386__) || \ defined(__arm__) || \ (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) || defined(__PPC__) #define __NR__sigaction __NR_sigaction #define __NR__sigprocmask __NR_sigprocmask LSS_INLINE _syscall2(int, fstat64, int, f, struct kernel_stat64 *, b) LSS_INLINE _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, loff_t *, res, uint, wh) #ifdef __PPC64__ LSS_INLINE _syscall6(void*, mmap, void*, s, size_t, l, int, p, int, f, int, d, off_t, o) #else #ifndef __ARM_EABI__ /* Not available on ARM EABI Linux. */ LSS_INLINE _syscall1(void*, mmap, void*, a) #endif LSS_INLINE _syscall6(void*, mmap2, void*, s, size_t, l, int, p, int, f, int, d, off_t, o) #endif LSS_INLINE _syscall3(int, _sigaction, int, s, const struct kernel_old_sigaction*, a, struct kernel_old_sigaction*, o) LSS_INLINE _syscall3(int, _sigprocmask, int, h, const unsigned long*, s, unsigned long*, o) LSS_INLINE _syscall2(int, stat64, const char *, p, struct kernel_stat64 *, b) LSS_INLINE int LSS_NAME(sigaction)(int signum, const struct kernel_sigaction *act, struct kernel_sigaction *oldact) { int old_errno = LSS_ERRNO; int rc; struct kernel_sigaction a; if (act != NULL) { a = *act; #ifdef __i386__ /* On i386, the kernel requires us to always set our own * SA_RESTORER when using realtime signals. Otherwise, it does not * know how to return from a signal handler. This function must have * a "magic" signature that the "gdb" (and maybe the kernel?) can * recognize. * Apparently, a SA_RESTORER is implicitly set by the kernel, when * using non-realtime signals. * * TODO: Test whether ARM needs a restorer */ if (!(a.sa_flags & SA_RESTORER)) { a.sa_flags |= SA_RESTORER; a.sa_restorer = (a.sa_flags & SA_SIGINFO) ? LSS_NAME(restore_rt)() : LSS_NAME(restore)(); } #endif } rc = LSS_NAME(rt_sigaction)(signum, act ? &a : act, oldact, (KERNEL_NSIG+7)/8); if (rc < 0 && LSS_ERRNO == ENOSYS) { struct kernel_old_sigaction oa, ooa, *ptr_a = &oa, *ptr_oa = &ooa; if (!act) { ptr_a = NULL; } else { oa.sa_handler_ = act->sa_handler_; memcpy(&oa.sa_mask, &act->sa_mask, sizeof(oa.sa_mask)); #ifndef __mips__ oa.sa_restorer = act->sa_restorer; #endif oa.sa_flags = act->sa_flags; } if (!oldact) { ptr_oa = NULL; } LSS_ERRNO = old_errno; rc = LSS_NAME(_sigaction)(signum, ptr_a, ptr_oa); if (rc == 0 && oldact) { if (act) { memcpy(oldact, act, sizeof(*act)); } else { memset(oldact, 0, sizeof(*oldact)); } oldact->sa_handler_ = ptr_oa->sa_handler_; oldact->sa_flags = ptr_oa->sa_flags; memcpy(&oldact->sa_mask, &ptr_oa->sa_mask, sizeof(ptr_oa->sa_mask)); #ifndef __mips__ oldact->sa_restorer = ptr_oa->sa_restorer; #endif } } return rc; } LSS_INLINE int LSS_NAME(sigprocmask)(int how, const struct kernel_sigset_t *set, struct kernel_sigset_t *oldset) { int olderrno = LSS_ERRNO; int rc = LSS_NAME(rt_sigprocmask)(how, set, oldset, (KERNEL_NSIG+7)/8); if (rc < 0 && LSS_ERRNO == ENOSYS) { LSS_ERRNO = olderrno; if (oldset) { LSS_NAME(sigemptyset)(oldset); } rc = LSS_NAME(_sigprocmask)(how, set ? &set->sig[0] : NULL, oldset ? &oldset->sig[0] : NULL); } return rc; } #endif #if defined(__i386__) || \ defined(__PPC__) || \ (defined(__arm__) && !defined(__ARM_EABI__)) || \ (defined(__mips__) && _MIPS_SIM == _MIPS_SIM_ABI32) /* See sys_socketcall in net/socket.c in kernel source. * It de-multiplexes on its first arg and unpacks the arglist * array in its second arg. */ LSS_INLINE _syscall2(long, socketcall, int, c, unsigned long*, a) LSS_INLINE int LSS_NAME(socket)(int domain, int type, int protocol) { unsigned long args[3] = { (unsigned long) domain, (unsigned long) type, (unsigned long) protocol }; return LSS_NAME(socketcall)(1, args); } #elif defined(__ARM_EABI__) LSS_INLINE _syscall3(int, socket, int, d, int, t, int, p) #endif #if defined(__mips__) /* sys_pipe() on MIPS has non-standard calling conventions, as it returns * both file handles through CPU registers. */ LSS_INLINE int LSS_NAME(pipe)(int *p) { register unsigned long __v0 __asm__("$2") = __NR_pipe; register unsigned long __v1 __asm__("$3"); register unsigned long __r7 __asm__("$7"); __asm__ __volatile__ ("syscall\n" : "=&r"(__v0), "=&r"(__v1), "+r" (__r7) : "0"(__v0) : "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24", "memory"); if (__r7) { LSS_ERRNO = __v0; return -1; } else { p[0] = __v0; p[1] = __v1; return 0; } } #elif defined(__NR_pipe2) LSS_INLINE _syscall2(int, pipe2, int *, p, int, f ) LSS_INLINE int LSS_NAME(pipe)( int * p) { return LSS_NAME(pipe2)(p, 0); } #else LSS_INLINE _syscall1(int, pipe, int *, p) #endif LSS_INLINE pid_t LSS_NAME(gettid)() { pid_t tid = LSS_NAME(_gettid)(); if (tid != -1) { return tid; } return LSS_NAME(getpid)(); } LSS_INLINE void *LSS_NAME(mremap)(void *old_address, size_t old_size, size_t new_size, int flags, ...) { va_list ap; void *new_address, *rc; va_start(ap, flags); new_address = va_arg(ap, void *); rc = LSS_NAME(_mremap)(old_address, old_size, new_size, flags, new_address); va_end(ap); return rc; } LSS_INLINE int LSS_NAME(ptrace_detach)(pid_t pid) { /* PTRACE_DETACH can sometimes forget to wake up the tracee and it * then sends job control signals to the real parent, rather than to * the tracer. We reduce the risk of this happening by starting a * whole new time slice, and then quickly sending a SIGCONT signal * right after detaching from the tracee. */ int rc, err; LSS_NAME(sched_yield)(); rc = LSS_NAME(ptrace)(PTRACE_DETACH, pid, (void *)0, (void *)0); err = LSS_ERRNO; LSS_NAME(kill)(pid, SIGCONT); LSS_ERRNO = err; return rc; } #endif #if defined(__cplusplus) && !defined(SYS_CPLUSPLUS) } #endif #endif #endif gperftools-2.4/src/base/linuxthreads.h0000644000000000000000000000424112440704174015022 00000000000000/* Copyright (c) 2005-2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Markus Gutschke */ #ifndef _LINUXTHREADS_H #define _LINUXTHREADS_H /* Include thread_lister.h to get the interface that we implement for linux. */ /* We currently only support x86-32 and x86-64 on Linux. Porting to other * related platforms should not be difficult. */ #if (defined(__i386__) || defined(__x86_64__) || defined(__ARM_ARCH_3__) || \ defined(__mips__) || defined(__PPC__) || defined(__aarch64__)) && defined(__linux) /* Define the THREADS symbol to make sure that there is exactly one core dumper * built into the library. */ #define THREADS "Linux /proc" #endif #endif /* _LINUXTHREADS_H */ gperftools-2.4/src/base/stl_allocator.h0000644000000000000000000000720012440704174015150 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Maxim Lifantsev */ #ifndef BASE_STL_ALLOCATOR_H_ #define BASE_STL_ALLOCATOR_H_ #include #include // for ptrdiff_t #include #include "base/logging.h" // Generic allocator class for STL objects // that uses a given type-less allocator Alloc, which must provide: // static void* Alloc::Allocate(size_t size); // static void Alloc::Free(void* ptr, size_t size); // // STL_Allocator provides the same thread-safety // guarantees as MyAlloc. // // Usage example: // set, STL_Allocator > my_set; // CAVEAT: Parts of the code below are probably specific // to the STL version(s) we are using. // The code is simply lifted from what std::allocator<> provides. template class STL_Allocator { public: typedef size_t size_type; typedef ptrdiff_t difference_type; typedef T* pointer; typedef const T* const_pointer; typedef T& reference; typedef const T& const_reference; typedef T value_type; template struct rebind { typedef STL_Allocator other; }; STL_Allocator() { } STL_Allocator(const STL_Allocator&) { } template STL_Allocator(const STL_Allocator&) { } ~STL_Allocator() { } pointer address(reference x) const { return &x; } const_pointer address(const_reference x) const { return &x; } pointer allocate(size_type n, const void* = 0) { RAW_DCHECK((n * sizeof(T)) / sizeof(T) == n, "n is too big to allocate"); return static_cast(Alloc::Allocate(n * sizeof(T))); } void deallocate(pointer p, size_type n) { Alloc::Free(p, n * sizeof(T)); } size_type max_size() const { return size_t(-1) / sizeof(T); } void construct(pointer p, const T& val) { ::new(p) T(val); } void construct(pointer p) { ::new(p) T(); } void destroy(pointer p) { p->~T(); } // There's no state, so these allocators are always equal bool operator==(const STL_Allocator&) const { return true; } }; #endif // BASE_STL_ALLOCATOR_H_ gperftools-2.4/src/base/thread_lister.h0000644000000000000000000000724412440704174015147 00000000000000/* -*- Mode: c; c-basic-offset: 2; indent-tabs-mode: nil -*- */ /* Copyright (c) 2005-2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Markus Gutschke */ #ifndef _THREAD_LISTER_H #define _THREAD_LISTER_H #include #include #ifdef __cplusplus extern "C" { #endif typedef int (*ListAllProcessThreadsCallBack)(void *parameter, int num_threads, pid_t *thread_pids, va_list ap); /* This function gets the list of all linux threads of the current process * passes them to the 'callback' along with the 'parameter' pointer; at the * call back call time all the threads are paused via * PTRACE_ATTACH. * The callback is executed from a separate thread which shares only the * address space, the filesystem, and the filehandles with the caller. Most * notably, it does not share the same pid and ppid; and if it terminates, * the rest of the application is still there. 'callback' is supposed to do * or arrange for TCMalloc_ResumeAllProcessThreads. This happens automatically, if * the thread raises a synchronous signal (e.g. SIGSEGV); asynchronous * signals are blocked. If the 'callback' decides to unblock them, it must * ensure that they cannot terminate the application, or that * TCMalloc_ResumeAllProcessThreads will get called. * It is an error for the 'callback' to make any library calls that could * acquire locks. Most notably, this means that most system calls have to * avoid going through libc. Also, this means that it is not legal to call * exit() or abort(). * We return -1 on error and the return value of 'callback' on success. */ int TCMalloc_ListAllProcessThreads(void *parameter, ListAllProcessThreadsCallBack callback, ...); /* This function resumes the list of all linux threads that * TCMalloc_ListAllProcessThreads pauses before giving to its * callback. The function returns non-zero if at least one thread was * suspended and has now been resumed. */ int TCMalloc_ResumeAllProcessThreads(int num_threads, pid_t *thread_pids); #ifdef __cplusplus } #endif #endif /* _THREAD_LISTER_H */ gperftools-2.4/src/base/thread_lister.c0000644000000000000000000000515712440704174015143 00000000000000/* Copyright (c) 2005-2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Markus Gutschke */ #include "config.h" #include /* needed for NULL on some powerpc platforms (?!) */ #ifdef HAVE_SYS_PRCTL # include #endif #include "base/thread_lister.h" #include "base/linuxthreads.h" /* Include other thread listers here that define THREADS macro * only when they can provide a good implementation. */ #ifndef THREADS /* Default trivial thread lister for single-threaded applications, * or if the multi-threading code has not been ported, yet. */ int TCMalloc_ListAllProcessThreads(void *parameter, ListAllProcessThreadsCallBack callback, ...) { int rc; va_list ap; pid_t pid; #ifdef HAVE_SYS_PRCTL int dumpable = prctl(PR_GET_DUMPABLE, 0); if (!dumpable) prctl(PR_SET_DUMPABLE, 1); #endif va_start(ap, callback); pid = getpid(); rc = callback(parameter, 1, &pid, ap); va_end(ap); #ifdef HAVE_SYS_PRCTL if (!dumpable) prctl(PR_SET_DUMPABLE, 0); #endif return rc; } int TCMalloc_ResumeAllProcessThreads(int num_threads, pid_t *thread_pids) { return 1; } #endif /* ifndef THREADS */ gperftools-2.4/src/base/linuxthreads.cc0000644000000000000000000006220312440704174015162 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2005-2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Markus Gutschke */ #include "base/linuxthreads.h" #ifdef THREADS #ifdef __cplusplus extern "C" { #endif #include #include #include #include #include #include #include #include #include #include "base/linux_syscall_support.h" #include "base/thread_lister.h" #ifndef CLONE_UNTRACED #define CLONE_UNTRACED 0x00800000 #endif /* Synchronous signals that should not be blocked while in the lister thread. */ static const int sync_signals[] = { SIGABRT, SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGXCPU, SIGXFSZ }; /* itoa() is not a standard function, and we cannot safely call printf() * after suspending threads. So, we just implement our own copy. A * recursive approach is the easiest here. */ static char *local_itoa(char *buf, int i) { if (i < 0) { *buf++ = '-'; return local_itoa(buf, -i); } else { if (i >= 10) buf = local_itoa(buf, i/10); *buf++ = (i%10) + '0'; *buf = '\000'; return buf; } } /* Wrapper around clone() that runs "fn" on the same stack as the * caller! Unlike fork(), the cloned thread shares the same address space. * The caller must be careful to use only minimal amounts of stack until * the cloned thread has returned. * There is a good chance that the cloned thread and the caller will share * the same copy of errno! */ #ifdef __GNUC__ #if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* Try to force this function into a separate stack frame, and make sure * that arguments are passed on the stack. */ static int local_clone (int (*fn)(void *), void *arg, ...) __attribute__ ((noinline)); #endif #endif /* To avoid the gap cross page boundaries, increase by the large parge * size mostly PowerPC system uses. */ #ifdef __PPC64__ #define CLONE_STACK_SIZE 65536 #else #define CLONE_STACK_SIZE 4096 #endif static int local_clone (int (*fn)(void *), void *arg, ...) { /* Leave 4kB of gap between the callers stack and the new clone. This * should be more than sufficient for the caller to call waitpid() until * the cloned thread terminates. * * It is important that we set the CLONE_UNTRACED flag, because newer * versions of "gdb" otherwise attempt to attach to our thread, and will * attempt to reap its status codes. This subsequently results in the * caller hanging indefinitely in waitpid(), waiting for a change in * status that will never happen. By setting the CLONE_UNTRACED flag, we * prevent "gdb" from stealing events, but we still expect the thread * lister to fail, because it cannot PTRACE_ATTACH to the process that * is being debugged. This is OK and the error code will be reported * correctly. */ return sys_clone(fn, (char *)&arg - CLONE_STACK_SIZE, CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_UNTRACED, arg, 0, 0, 0); } /* Local substitute for the atoi() function, which is not necessarily safe * to call once threads are suspended (depending on whether libc looks up * locale information, when executing atoi()). */ static int local_atoi(const char *s) { int n = 0; int neg = *s == '-'; if (neg) s++; while (*s >= '0' && *s <= '9') n = 10*n + (*s++ - '0'); return neg ? -n : n; } /* Re-runs fn until it doesn't cause EINTR */ #define NO_INTR(fn) do {} while ((fn) < 0 && errno == EINTR) /* Wrap a class around system calls, in order to give us access to * a private copy of errno. This only works in C++, but it has the * advantage of not needing nested functions, which are a non-standard * language extension. */ #ifdef __cplusplus namespace { class SysCalls { public: #define SYS_CPLUSPLUS #define SYS_ERRNO my_errno #define SYS_INLINE inline #define SYS_PREFIX -1 #undef SYS_LINUX_SYSCALL_SUPPORT_H #include "linux_syscall_support.h" SysCalls() : my_errno(0) { } int my_errno; }; } #define ERRNO sys.my_errno #else #define ERRNO my_errno #endif /* Wrapper for open() which is guaranteed to never return EINTR. */ static int c_open(const char *fname, int flags, int mode) { ssize_t rc; NO_INTR(rc = sys_open(fname, flags, mode)); return rc; } /* abort() is not safely reentrant, and changes it's behavior each time * it is called. This means, if the main application ever called abort() * we cannot safely call it again. This would happen if we were called * from a SIGABRT signal handler in the main application. So, document * that calling SIGABRT from the thread lister makes it not signal safe * (and vice-versa). * Also, since we share address space with the main application, we * cannot call abort() from the callback and expect the main application * to behave correctly afterwards. In fact, the only thing we can do, is * to terminate the main application with extreme prejudice (aka * PTRACE_KILL). * We set up our own SIGABRT handler to do this. * In order to find the main application from the signal handler, we * need to store information about it in global variables. This is * safe, because the main application should be suspended at this * time. If the callback ever called TCMalloc_ResumeAllProcessThreads(), then * we are running a higher risk, though. So, try to avoid calling * abort() after calling TCMalloc_ResumeAllProcessThreads. */ static volatile int *sig_pids, sig_num_threads, sig_proc, sig_marker; /* Signal handler to help us recover from dying while we are attached to * other threads. */ static void SignalHandler(int signum, siginfo_t *si, void *data) { if (sig_pids != NULL) { if (signum == SIGABRT) { while (sig_num_threads-- > 0) { /* Not sure if sched_yield is really necessary here, but it does not */ /* hurt, and it might be necessary for the same reasons that we have */ /* to do so in sys_ptrace_detach(). */ sys_sched_yield(); sys_ptrace(PTRACE_KILL, sig_pids[sig_num_threads], 0, 0); } } else if (sig_num_threads > 0) { TCMalloc_ResumeAllProcessThreads(sig_num_threads, (int *)sig_pids); } } sig_pids = NULL; if (sig_marker >= 0) NO_INTR(sys_close(sig_marker)); sig_marker = -1; if (sig_proc >= 0) NO_INTR(sys_close(sig_proc)); sig_proc = -1; sys__exit(signum == SIGABRT ? 1 : 2); } /* Try to dirty the stack, and hope that the compiler is not smart enough * to optimize this function away. Or worse, the compiler could inline the * function and permanently allocate the data on the stack. */ static void DirtyStack(size_t amount) { char buf[amount]; memset(buf, 0, amount); sys_read(-1, buf, amount); } /* Data structure for passing arguments to the lister thread. */ #define ALT_STACKSIZE (MINSIGSTKSZ + 4096) struct ListerParams { int result, err; char *altstack_mem; ListAllProcessThreadsCallBack callback; void *parameter; va_list ap; sem_t *lock; }; static void ListerThread(struct ListerParams *args) { int found_parent = 0; pid_t clone_pid = sys_gettid(), ppid = sys_getppid(); char proc_self_task[80], marker_name[48], *marker_path; const char *proc_paths[3]; const char *const *proc_path = proc_paths; int proc = -1, marker = -1, num_threads = 0; int max_threads = 0, sig; struct kernel_stat marker_sb, proc_sb; stack_t altstack; /* Wait for parent thread to set appropriate permissions * to allow ptrace activity */ if (sem_wait(args->lock) < 0) { goto failure; } /* Create "marker" that we can use to detect threads sharing the same * address space and the same file handles. By setting the FD_CLOEXEC flag * we minimize the risk of misidentifying child processes as threads; * and since there is still a race condition, we will filter those out * later, anyway. */ if ((marker = sys_socket(PF_LOCAL, SOCK_DGRAM, 0)) < 0 || sys_fcntl(marker, F_SETFD, FD_CLOEXEC) < 0) { failure: args->result = -1; args->err = errno; if (marker >= 0) NO_INTR(sys_close(marker)); sig_marker = marker = -1; if (proc >= 0) NO_INTR(sys_close(proc)); sig_proc = proc = -1; sys__exit(1); } /* Compute search paths for finding thread directories in /proc */ local_itoa(strrchr(strcpy(proc_self_task, "/proc/"), '\000'), ppid); strcpy(marker_name, proc_self_task); marker_path = marker_name + strlen(marker_name); strcat(proc_self_task, "/task/"); proc_paths[0] = proc_self_task; /* /proc/$$/task/ */ proc_paths[1] = "/proc/"; /* /proc/ */ proc_paths[2] = NULL; /* Compute path for marker socket in /proc */ local_itoa(strcpy(marker_path, "/fd/") + 4, marker); if (sys_stat(marker_name, &marker_sb) < 0) { goto failure; } /* Catch signals on an alternate pre-allocated stack. This way, we can * safely execute the signal handler even if we ran out of memory. */ memset(&altstack, 0, sizeof(altstack)); altstack.ss_sp = args->altstack_mem; altstack.ss_flags = 0; altstack.ss_size = ALT_STACKSIZE; sys_sigaltstack(&altstack, (const stack_t *)NULL); /* Some kernels forget to wake up traced processes, when the * tracer dies. So, intercept synchronous signals and make sure * that we wake up our tracees before dying. It is the caller's * responsibility to ensure that asynchronous signals do not * interfere with this function. */ sig_marker = marker; sig_proc = -1; for (sig = 0; sig < sizeof(sync_signals)/sizeof(*sync_signals); sig++) { struct kernel_sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_sigaction_ = SignalHandler; sys_sigfillset(&sa.sa_mask); sa.sa_flags = SA_ONSTACK|SA_SIGINFO|SA_RESETHAND; sys_sigaction(sync_signals[sig], &sa, (struct kernel_sigaction *)NULL); } /* Read process directories in /proc/... */ for (;;) { /* Some kernels know about threads, and hide them in "/proc" * (although they are still there, if you know the process * id). Threads are moved into a separate "task" directory. We * check there first, and then fall back on the older naming * convention if necessary. */ if ((sig_proc = proc = c_open(*proc_path, O_RDONLY|O_DIRECTORY, 0)) < 0) { if (*++proc_path != NULL) continue; goto failure; } if (sys_fstat(proc, &proc_sb) < 0) goto failure; /* Since we are suspending threads, we cannot call any libc * functions that might acquire locks. Most notably, we cannot * call malloc(). So, we have to allocate memory on the stack, * instead. Since we do not know how much memory we need, we * make a best guess. And if we guessed incorrectly we retry on * a second iteration (by jumping to "detach_threads"). * * Unless the number of threads is increasing very rapidly, we * should never need to do so, though, as our guestimate is very * conservative. */ if (max_threads < proc_sb.st_nlink + 100) max_threads = proc_sb.st_nlink + 100; /* scope */ { pid_t pids[max_threads]; int added_entries = 0; sig_num_threads = num_threads; sig_pids = pids; for (;;) { struct KERNEL_DIRENT *entry; char buf[4096]; ssize_t nbytes = GETDENTS(proc, (struct KERNEL_DIRENT *)buf, sizeof(buf)); if (nbytes < 0) goto failure; else if (nbytes == 0) { if (added_entries) { /* Need to keep iterating over "/proc" in multiple * passes until we no longer find any more threads. This * algorithm eventually completes, when all threads have * been suspended. */ added_entries = 0; sys_lseek(proc, 0, SEEK_SET); continue; } break; } for (entry = (struct KERNEL_DIRENT *)buf; entry < (struct KERNEL_DIRENT *)&buf[nbytes]; entry = (struct KERNEL_DIRENT *)((char *)entry+entry->d_reclen)) { if (entry->d_ino != 0) { const char *ptr = entry->d_name; pid_t pid; /* Some kernels hide threads by preceding the pid with a '.' */ if (*ptr == '.') ptr++; /* If the directory is not numeric, it cannot be a * process/thread */ if (*ptr < '0' || *ptr > '9') continue; pid = local_atoi(ptr); /* Attach (and suspend) all threads */ if (pid && pid != clone_pid) { struct kernel_stat tmp_sb; char fname[entry->d_reclen + 48]; strcat(strcat(strcpy(fname, "/proc/"), entry->d_name), marker_path); /* Check if the marker is identical to the one we created */ if (sys_stat(fname, &tmp_sb) >= 0 && marker_sb.st_ino == tmp_sb.st_ino) { long i, j; /* Found one of our threads, make sure it is no duplicate */ for (i = 0; i < num_threads; i++) { /* Linear search is slow, but should not matter much for * the typically small number of threads. */ if (pids[i] == pid) { /* Found a duplicate; most likely on second pass */ goto next_entry; } } /* Check whether data structure needs growing */ if (num_threads >= max_threads) { /* Back to square one, this time with more memory */ NO_INTR(sys_close(proc)); goto detach_threads; } /* Attaching to thread suspends it */ pids[num_threads++] = pid; sig_num_threads = num_threads; if (sys_ptrace(PTRACE_ATTACH, pid, (void *)0, (void *)0) < 0) { /* If operation failed, ignore thread. Maybe it * just died? There might also be a race * condition with a concurrent core dumper or * with a debugger. In that case, we will just * make a best effort, rather than failing * entirely. */ num_threads--; sig_num_threads = num_threads; goto next_entry; } while (sys_waitpid(pid, (int *)0, __WALL) < 0) { if (errno != EINTR) { sys_ptrace_detach(pid); num_threads--; sig_num_threads = num_threads; goto next_entry; } } if (sys_ptrace(PTRACE_PEEKDATA, pid, &i, &j) || i++ != j || sys_ptrace(PTRACE_PEEKDATA, pid, &i, &j) || i != j) { /* Address spaces are distinct, even though both * processes show the "marker". This is probably * a forked child process rather than a thread. */ sys_ptrace_detach(pid); num_threads--; sig_num_threads = num_threads; } else { found_parent |= pid == ppid; added_entries++; } } } } next_entry:; } } NO_INTR(sys_close(proc)); sig_proc = proc = -1; /* If we failed to find any threads, try looking somewhere else in * /proc. Maybe, threads are reported differently on this system. */ if (num_threads > 1 || !*++proc_path) { NO_INTR(sys_close(marker)); sig_marker = marker = -1; /* If we never found the parent process, something is very wrong. * Most likely, we are running in debugger. Any attempt to operate * on the threads would be very incomplete. Let's just report an * error to the caller. */ if (!found_parent) { TCMalloc_ResumeAllProcessThreads(num_threads, pids); sys__exit(3); } /* Now we are ready to call the callback, * which takes care of resuming the threads for us. */ args->result = args->callback(args->parameter, num_threads, pids, args->ap); args->err = errno; /* Callback should have resumed threads, but better safe than sorry */ if (TCMalloc_ResumeAllProcessThreads(num_threads, pids)) { /* Callback forgot to resume at least one thread, report error */ args->err = EINVAL; args->result = -1; } sys__exit(0); } detach_threads: /* Resume all threads prior to retrying the operation */ TCMalloc_ResumeAllProcessThreads(num_threads, pids); sig_pids = NULL; num_threads = 0; sig_num_threads = num_threads; max_threads += 100; } } } /* This function gets the list of all linux threads of the current process * passes them to the 'callback' along with the 'parameter' pointer; at the * call back call time all the threads are paused via * PTRACE_ATTACH. * The callback is executed from a separate thread which shares only the * address space, the filesystem, and the filehandles with the caller. Most * notably, it does not share the same pid and ppid; and if it terminates, * the rest of the application is still there. 'callback' is supposed to do * or arrange for TCMalloc_ResumeAllProcessThreads. This happens automatically, if * the thread raises a synchronous signal (e.g. SIGSEGV); asynchronous * signals are blocked. If the 'callback' decides to unblock them, it must * ensure that they cannot terminate the application, or that * TCMalloc_ResumeAllProcessThreads will get called. * It is an error for the 'callback' to make any library calls that could * acquire locks. Most notably, this means that most system calls have to * avoid going through libc. Also, this means that it is not legal to call * exit() or abort(). * We return -1 on error and the return value of 'callback' on success. */ int TCMalloc_ListAllProcessThreads(void *parameter, ListAllProcessThreadsCallBack callback, ...) { char altstack_mem[ALT_STACKSIZE]; struct ListerParams args; pid_t clone_pid; int dumpable = 1, sig; struct kernel_sigset_t sig_blocked, sig_old; sem_t lock; va_start(args.ap, callback); /* If we are short on virtual memory, initializing the alternate stack * might trigger a SIGSEGV. Let's do this early, before it could get us * into more trouble (i.e. before signal handlers try to use the alternate * stack, and before we attach to other threads). */ memset(altstack_mem, 0, sizeof(altstack_mem)); /* Some of our cleanup functions could conceivable use more stack space. * Try to touch the stack right now. This could be defeated by the compiler * being too smart for it's own good, so try really hard. */ DirtyStack(32768); /* Make this process "dumpable". This is necessary in order to ptrace() * after having called setuid(). */ dumpable = sys_prctl(PR_GET_DUMPABLE, 0); if (!dumpable) sys_prctl(PR_SET_DUMPABLE, 1); /* Fill in argument block for dumper thread */ args.result = -1; args.err = 0; args.altstack_mem = altstack_mem; args.parameter = parameter; args.callback = callback; args.lock = &lock; /* Before cloning the thread lister, block all asynchronous signals, as we */ /* are not prepared to handle them. */ sys_sigfillset(&sig_blocked); for (sig = 0; sig < sizeof(sync_signals)/sizeof(*sync_signals); sig++) { sys_sigdelset(&sig_blocked, sync_signals[sig]); } if (sys_sigprocmask(SIG_BLOCK, &sig_blocked, &sig_old)) { args.err = errno; args.result = -1; goto failed; } /* scope */ { /* After cloning, both the parent and the child share the same instance * of errno. We must make sure that at least one of these processes * (in our case, the parent) uses modified syscall macros that update * a local copy of errno, instead. */ #ifdef __cplusplus #define sys0_sigprocmask sys.sigprocmask #define sys0_waitpid sys.waitpid SysCalls sys; #else int my_errno; #define SYS_ERRNO my_errno #define SYS_INLINE inline #define SYS_PREFIX 0 #undef SYS_LINUX_SYSCALL_SUPPORT_H #include "linux_syscall_support.h" #endif /* Lock before clone so that parent can set * ptrace permissions (if necessary) prior * to ListerThread actually executing */ if (sem_init(&lock, 0, 0) == 0) { int clone_errno; clone_pid = local_clone((int (*)(void *))ListerThread, &args); clone_errno = errno; sys_sigprocmask(SIG_SETMASK, &sig_old, &sig_old); if (clone_pid >= 0) { #ifdef PR_SET_PTRACER /* In newer versions of glibc permission must explicitly * be given to allow for ptrace. */ prctl(PR_SET_PTRACER, clone_pid, 0, 0, 0); #endif /* Releasing the lock here allows the * ListerThread to execute and ptrace us. */ sem_post(&lock); int status, rc; while ((rc = sys0_waitpid(clone_pid, &status, __WALL)) < 0 && ERRNO == EINTR) { /* Keep waiting */ } if (rc < 0) { args.err = ERRNO; args.result = -1; } else if (WIFEXITED(status)) { switch (WEXITSTATUS(status)) { case 0: break; /* Normal process termination */ case 2: args.err = EFAULT; /* Some fault (e.g. SIGSEGV) detected */ args.result = -1; break; case 3: args.err = EPERM; /* Process is already being traced */ args.result = -1; break; default:args.err = ECHILD; /* Child died unexpectedly */ args.result = -1; break; } } else if (!WIFEXITED(status)) { args.err = EFAULT; /* Terminated due to an unhandled signal*/ args.result = -1; } sem_destroy(&lock); } else { args.result = -1; args.err = clone_errno; } } else { args.result = -1; args.err = errno; } } /* Restore the "dumpable" state of the process */ failed: if (!dumpable) sys_prctl(PR_SET_DUMPABLE, dumpable); va_end(args.ap); errno = args.err; return args.result; } /* This function resumes the list of all linux threads that * TCMalloc_ListAllProcessThreads pauses before giving to its callback. * The function returns non-zero if at least one thread was * suspended and has now been resumed. */ int TCMalloc_ResumeAllProcessThreads(int num_threads, pid_t *thread_pids) { int detached_at_least_one = 0; while (num_threads-- > 0) { detached_at_least_one |= sys_ptrace_detach(thread_pids[num_threads]) >= 0; } return detached_at_least_one; } #ifdef __cplusplus } #endif #endif gperftools-2.4/src/base/low_level_alloc.cc0000644000000000000000000005164512440704174015622 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // A low-level allocator that can be used by other low-level // modules without introducing dependency cycles. // This allocator is slow and wasteful of memory; // it should not be used when performance is key. #include "base/low_level_alloc.h" #include "base/dynamic_annotations.h" #include "base/spinlock.h" #include "base/logging.h" #include "malloc_hook-inl.h" #include #include #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_MMAP #include #endif #include // for placement-new // On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old // form of the name instead. #ifndef MAP_ANONYMOUS # define MAP_ANONYMOUS MAP_ANON #endif // A first-fit allocator with amortized logarithmic free() time. // --------------------------------------------------------------------------- static const int kMaxLevel = 30; // We put this class-only struct in a namespace to avoid polluting the // global namespace with this struct name (thus risking an ODR violation). namespace low_level_alloc_internal { // This struct describes one allocated block, or one free block. struct AllocList { struct Header { intptr_t size; // size of entire region, including this field. Must be // first. Valid in both allocated and unallocated blocks intptr_t magic; // kMagicAllocated or kMagicUnallocated xor this LowLevelAlloc::Arena *arena; // pointer to parent arena void *dummy_for_alignment; // aligns regions to 0 mod 2*sizeof(void*) } header; // Next two fields: in unallocated blocks: freelist skiplist data // in allocated blocks: overlaps with client data int levels; // levels in skiplist used AllocList *next[kMaxLevel]; // actually has levels elements. // The AllocList node may not have room for // all kMaxLevel entries. See max_fit in // LLA_SkiplistLevels() }; } using low_level_alloc_internal::AllocList; // --------------------------------------------------------------------------- // A trivial skiplist implementation. This is used to keep the freelist // in address order while taking only logarithmic time per insert and delete. // An integer approximation of log2(size/base) // Requires size >= base. static int IntLog2(size_t size, size_t base) { int result = 0; for (size_t i = size; i > base; i >>= 1) { // i == floor(size/2**result) result++; } // floor(size / 2**result) <= base < floor(size / 2**(result-1)) // => log2(size/(base+1)) <= result < 1+log2(size/base) // => result ~= log2(size/base) return result; } // Return a random integer n: p(n)=1/(2**n) if 1 <= n; p(n)=0 if n < 1. static int Random() { static int32 r = 1; // no locking---it's not critical ANNOTATE_BENIGN_RACE(&r, "benign race, not critical."); int result = 1; while ((((r = r*1103515245 + 12345) >> 30) & 1) == 0) { result++; } return result; } // Return a number of skiplist levels for a node of size bytes, where // base is the minimum node size. Compute level=log2(size / base)+n // where n is 1 if random is false and otherwise a random number generated with // the standard distribution for a skiplist: See Random() above. // Bigger nodes tend to have more skiplist levels due to the log2(size / base) // term, so first-fit searches touch fewer nodes. "level" is clipped so // level max_fit) level = max_fit; if (level > kMaxLevel-1) level = kMaxLevel - 1; RAW_CHECK(level >= 1, "block not big enough for even one level"); return level; } // Return "atleast", the first element of AllocList *head s.t. *atleast >= *e. // For 0 <= i < head->levels, set prev[i] to "no_greater", where no_greater // points to the last element at level i in the AllocList less than *e, or is // head if no such element exists. static AllocList *LLA_SkiplistSearch(AllocList *head, AllocList *e, AllocList **prev) { AllocList *p = head; for (int level = head->levels - 1; level >= 0; level--) { for (AllocList *n; (n = p->next[level]) != 0 && n < e; p = n) { } prev[level] = p; } return (head->levels == 0) ? 0 : prev[0]->next[0]; } // Insert element *e into AllocList *head. Set prev[] as LLA_SkiplistSearch. // Requires that e->levels be previously set by the caller (using // LLA_SkiplistLevels()) static void LLA_SkiplistInsert(AllocList *head, AllocList *e, AllocList **prev) { LLA_SkiplistSearch(head, e, prev); for (; head->levels < e->levels; head->levels++) { // extend prev pointers prev[head->levels] = head; // to all *e's levels } for (int i = 0; i != e->levels; i++) { // add element to list e->next[i] = prev[i]->next[i]; prev[i]->next[i] = e; } } // Remove element *e from AllocList *head. Set prev[] as LLA_SkiplistSearch(). // Requires that e->levels be previous set by the caller (using // LLA_SkiplistLevels()) static void LLA_SkiplistDelete(AllocList *head, AllocList *e, AllocList **prev) { AllocList *found = LLA_SkiplistSearch(head, e, prev); RAW_CHECK(e == found, "element not in freelist"); for (int i = 0; i != e->levels && prev[i]->next[i] == e; i++) { prev[i]->next[i] = e->next[i]; } while (head->levels > 0 && head->next[head->levels - 1] == 0) { head->levels--; // reduce head->levels if level unused } } // --------------------------------------------------------------------------- // Arena implementation struct LowLevelAlloc::Arena { Arena() : mu(SpinLock::LINKER_INITIALIZED) {} // does nothing; for static init explicit Arena(int) : pagesize(0) {} // set pagesize to zero explicitly // for non-static init SpinLock mu; // protects freelist, allocation_count, // pagesize, roundup, min_size AllocList freelist; // head of free list; sorted by addr (under mu) int32 allocation_count; // count of allocated blocks (under mu) int32 flags; // flags passed to NewArena (ro after init) size_t pagesize; // ==getpagesize() (init under mu, then ro) size_t roundup; // lowest power of 2 >= max(16,sizeof (AllocList)) // (init under mu, then ro) size_t min_size; // smallest allocation block size // (init under mu, then ro) }; // The default arena, which is used when 0 is passed instead of an Arena // pointer. static struct LowLevelAlloc::Arena default_arena; // Non-malloc-hooked arenas: used only to allocate metadata for arenas that // do not want malloc hook reporting, so that for them there's no malloc hook // reporting even during arena creation. static struct LowLevelAlloc::Arena unhooked_arena; static struct LowLevelAlloc::Arena unhooked_async_sig_safe_arena; // magic numbers to identify allocated and unallocated blocks static const intptr_t kMagicAllocated = 0x4c833e95; static const intptr_t kMagicUnallocated = ~kMagicAllocated; namespace { class SCOPED_LOCKABLE ArenaLock { public: explicit ArenaLock(LowLevelAlloc::Arena *arena) EXCLUSIVE_LOCK_FUNCTION(arena->mu) : left_(false), mask_valid_(false), arena_(arena) { if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) { // We've decided not to support async-signal-safe arena use until // there a demonstrated need. Here's how one could do it though // (would need to be made more portable). #if 0 sigset_t all; sigfillset(&all); this->mask_valid_ = (pthread_sigmask(SIG_BLOCK, &all, &this->mask_) == 0); #else RAW_CHECK(false, "We do not yet support async-signal-safe arena."); #endif } this->arena_->mu.Lock(); } ~ArenaLock() { RAW_CHECK(this->left_, "haven't left Arena region"); } void Leave() /*UNLOCK_FUNCTION()*/ { this->arena_->mu.Unlock(); #if 0 if (this->mask_valid_) { pthread_sigmask(SIG_SETMASK, &this->mask_, 0); } #endif this->left_ = true; } private: bool left_; // whether left region bool mask_valid_; #if 0 sigset_t mask_; // old mask of blocked signals #endif LowLevelAlloc::Arena *arena_; DISALLOW_COPY_AND_ASSIGN(ArenaLock); }; } // anonymous namespace // create an appropriate magic number for an object at "ptr" // "magic" should be kMagicAllocated or kMagicUnallocated inline static intptr_t Magic(intptr_t magic, AllocList::Header *ptr) { return magic ^ reinterpret_cast(ptr); } // Initialize the fields of an Arena static void ArenaInit(LowLevelAlloc::Arena *arena) { if (arena->pagesize == 0) { arena->pagesize = getpagesize(); // Round up block sizes to a power of two close to the header size. arena->roundup = 16; while (arena->roundup < sizeof (arena->freelist.header)) { arena->roundup += arena->roundup; } // Don't allocate blocks less than twice the roundup size to avoid tiny // free blocks. arena->min_size = 2 * arena->roundup; arena->freelist.header.size = 0; arena->freelist.header.magic = Magic(kMagicUnallocated, &arena->freelist.header); arena->freelist.header.arena = arena; arena->freelist.levels = 0; memset(arena->freelist.next, 0, sizeof (arena->freelist.next)); arena->allocation_count = 0; if (arena == &default_arena) { // Default arena should be hooked, e.g. for heap-checker to trace // pointer chains through objects in the default arena. arena->flags = LowLevelAlloc::kCallMallocHook; } else if (arena == &unhooked_async_sig_safe_arena) { arena->flags = LowLevelAlloc::kAsyncSignalSafe; } else { arena->flags = 0; // other arenas' flags may be overridden by client, // but unhooked_arena will have 0 in 'flags'. } } } // L < meta_data_arena->mu LowLevelAlloc::Arena *LowLevelAlloc::NewArena(int32 flags, Arena *meta_data_arena) { RAW_CHECK(meta_data_arena != 0, "must pass a valid arena"); if (meta_data_arena == &default_arena) { if ((flags & LowLevelAlloc::kAsyncSignalSafe) != 0) { meta_data_arena = &unhooked_async_sig_safe_arena; } else if ((flags & LowLevelAlloc::kCallMallocHook) == 0) { meta_data_arena = &unhooked_arena; } } // Arena(0) uses the constructor for non-static contexts Arena *result = new (AllocWithArena(sizeof (*result), meta_data_arena)) Arena(0); ArenaInit(result); result->flags = flags; return result; } // L < arena->mu, L < arena->arena->mu bool LowLevelAlloc::DeleteArena(Arena *arena) { RAW_CHECK(arena != 0 && arena != &default_arena && arena != &unhooked_arena, "may not delete default arena"); ArenaLock section(arena); bool empty = (arena->allocation_count == 0); section.Leave(); if (empty) { while (arena->freelist.next[0] != 0) { AllocList *region = arena->freelist.next[0]; size_t size = region->header.size; arena->freelist.next[0] = region->next[0]; RAW_CHECK(region->header.magic == Magic(kMagicUnallocated, ®ion->header), "bad magic number in DeleteArena()"); RAW_CHECK(region->header.arena == arena, "bad arena pointer in DeleteArena()"); RAW_CHECK(size % arena->pagesize == 0, "empty arena has non-page-aligned block size"); RAW_CHECK(reinterpret_cast(region) % arena->pagesize == 0, "empty arena has non-page-aligned block"); int munmap_result; if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) == 0) { munmap_result = munmap(region, size); } else { munmap_result = MallocHook::UnhookedMUnmap(region, size); } RAW_CHECK(munmap_result == 0, "LowLevelAlloc::DeleteArena: munmap failed address"); } Free(arena); } return empty; } // --------------------------------------------------------------------------- // Return value rounded up to next multiple of align. // align must be a power of two. static intptr_t RoundUp(intptr_t addr, intptr_t align) { return (addr + align - 1) & ~(align - 1); } // Equivalent to "return prev->next[i]" but with sanity checking // that the freelist is in the correct order, that it // consists of regions marked "unallocated", and that no two regions // are adjacent in memory (they should have been coalesced). // L < arena->mu static AllocList *Next(int i, AllocList *prev, LowLevelAlloc::Arena *arena) { RAW_CHECK(i < prev->levels, "too few levels in Next()"); AllocList *next = prev->next[i]; if (next != 0) { RAW_CHECK(next->header.magic == Magic(kMagicUnallocated, &next->header), "bad magic number in Next()"); RAW_CHECK(next->header.arena == arena, "bad arena pointer in Next()"); if (prev != &arena->freelist) { RAW_CHECK(prev < next, "unordered freelist"); RAW_CHECK(reinterpret_cast(prev) + prev->header.size < reinterpret_cast(next), "malformed freelist"); } } return next; } // Coalesce list item "a" with its successor if they are adjacent. static void Coalesce(AllocList *a) { AllocList *n = a->next[0]; if (n != 0 && reinterpret_cast(a) + a->header.size == reinterpret_cast(n)) { LowLevelAlloc::Arena *arena = a->header.arena; a->header.size += n->header.size; n->header.magic = 0; n->header.arena = 0; AllocList *prev[kMaxLevel]; LLA_SkiplistDelete(&arena->freelist, n, prev); LLA_SkiplistDelete(&arena->freelist, a, prev); a->levels = LLA_SkiplistLevels(a->header.size, arena->min_size, true); LLA_SkiplistInsert(&arena->freelist, a, prev); } } // Adds block at location "v" to the free list // L >= arena->mu static void AddToFreelist(void *v, LowLevelAlloc::Arena *arena) { AllocList *f = reinterpret_cast( reinterpret_cast(v) - sizeof (f->header)); RAW_CHECK(f->header.magic == Magic(kMagicAllocated, &f->header), "bad magic number in AddToFreelist()"); RAW_CHECK(f->header.arena == arena, "bad arena pointer in AddToFreelist()"); f->levels = LLA_SkiplistLevels(f->header.size, arena->min_size, true); AllocList *prev[kMaxLevel]; LLA_SkiplistInsert(&arena->freelist, f, prev); f->header.magic = Magic(kMagicUnallocated, &f->header); Coalesce(f); // maybe coalesce with successor Coalesce(prev[0]); // maybe coalesce with predecessor } // Frees storage allocated by LowLevelAlloc::Alloc(). // L < arena->mu void LowLevelAlloc::Free(void *v) { if (v != 0) { AllocList *f = reinterpret_cast( reinterpret_cast(v) - sizeof (f->header)); RAW_CHECK(f->header.magic == Magic(kMagicAllocated, &f->header), "bad magic number in Free()"); LowLevelAlloc::Arena *arena = f->header.arena; if ((arena->flags & kCallMallocHook) != 0) { MallocHook::InvokeDeleteHook(v); } ArenaLock section(arena); AddToFreelist(v, arena); RAW_CHECK(arena->allocation_count > 0, "nothing in arena to free"); arena->allocation_count--; section.Leave(); } } // allocates and returns a block of size bytes, to be freed with Free() // L < arena->mu static void *DoAllocWithArena(size_t request, LowLevelAlloc::Arena *arena) { void *result = 0; if (request != 0) { AllocList *s; // will point to region that satisfies request ArenaLock section(arena); ArenaInit(arena); // round up with header size_t req_rnd = RoundUp(request + sizeof (s->header), arena->roundup); for (;;) { // loop until we find a suitable region // find the minimum levels that a block of this size must have int i = LLA_SkiplistLevels(req_rnd, arena->min_size, false) - 1; if (i < arena->freelist.levels) { // potential blocks exist AllocList *before = &arena->freelist; // predecessor of s while ((s = Next(i, before, arena)) != 0 && s->header.size < req_rnd) { before = s; } if (s != 0) { // we found a region break; } } // we unlock before mmap() both because mmap() may call a callback hook, // and because it may be slow. arena->mu.Unlock(); // mmap generous 64K chunks to decrease // the chances/impact of fragmentation: size_t new_pages_size = RoundUp(req_rnd, arena->pagesize * 16); void *new_pages; if ((arena->flags & LowLevelAlloc::kAsyncSignalSafe) != 0) { new_pages = MallocHook::UnhookedMMap(0, new_pages_size, PROT_WRITE|PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); } else { new_pages = mmap(0, new_pages_size, PROT_WRITE|PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); } RAW_CHECK(new_pages != MAP_FAILED, "mmap error"); arena->mu.Lock(); s = reinterpret_cast(new_pages); s->header.size = new_pages_size; // Pretend the block is allocated; call AddToFreelist() to free it. s->header.magic = Magic(kMagicAllocated, &s->header); s->header.arena = arena; AddToFreelist(&s->levels, arena); // insert new region into free list } AllocList *prev[kMaxLevel]; LLA_SkiplistDelete(&arena->freelist, s, prev); // remove from free list // s points to the first free region that's big enough if (req_rnd + arena->min_size <= s->header.size) { // big enough to split AllocList *n = reinterpret_cast (req_rnd + reinterpret_cast(s)); n->header.size = s->header.size - req_rnd; n->header.magic = Magic(kMagicAllocated, &n->header); n->header.arena = arena; s->header.size = req_rnd; AddToFreelist(&n->levels, arena); } s->header.magic = Magic(kMagicAllocated, &s->header); RAW_CHECK(s->header.arena == arena, ""); arena->allocation_count++; section.Leave(); result = &s->levels; } ANNOTATE_NEW_MEMORY(result, request); return result; } void *LowLevelAlloc::Alloc(size_t request) { void *result = DoAllocWithArena(request, &default_arena); if ((default_arena.flags & kCallMallocHook) != 0) { // this call must be directly in the user-called allocator function // for MallocHook::GetCallerStackTrace to work properly MallocHook::InvokeNewHook(result, request); } return result; } void *LowLevelAlloc::AllocWithArena(size_t request, Arena *arena) { RAW_CHECK(arena != 0, "must pass a valid arena"); void *result = DoAllocWithArena(request, arena); if ((arena->flags & kCallMallocHook) != 0) { // this call must be directly in the user-called allocator function // for MallocHook::GetCallerStackTrace to work properly MallocHook::InvokeNewHook(result, request); } return result; } LowLevelAlloc::Arena *LowLevelAlloc::DefaultArena() { return &default_arena; } gperftools-2.4/src/base/low_level_alloc.h0000644000000000000000000001100012440704174015441 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #if !defined(_BASE_LOW_LEVEL_ALLOC_H_) #define _BASE_LOW_LEVEL_ALLOC_H_ // A simple thread-safe memory allocator that does not depend on // mutexes or thread-specific data. It is intended to be used // sparingly, and only when malloc() would introduce an unwanted // dependency, such as inside the heap-checker. #include #include // for size_t #include "base/basictypes.h" class LowLevelAlloc { public: struct Arena; // an arena from which memory may be allocated // Returns a pointer to a block of at least "request" bytes // that have been newly allocated from the specific arena. // for Alloc() call the DefaultArena() is used. // Returns 0 if passed request==0. // Does not return 0 under other circumstances; it crashes if memory // is not available. static void *Alloc(size_t request) ATTRIBUTE_SECTION(malloc_hook); static void *AllocWithArena(size_t request, Arena *arena) ATTRIBUTE_SECTION(malloc_hook); // Deallocates a region of memory that was previously allocated with // Alloc(). Does nothing if passed 0. "s" must be either 0, // or must have been returned from a call to Alloc() and not yet passed to // Free() since that call to Alloc(). The space is returned to the arena // from which it was allocated. static void Free(void *s) ATTRIBUTE_SECTION(malloc_hook); // ATTRIBUTE_SECTION(malloc_hook) for Alloc* and Free // are to put all callers of MallocHook::Invoke* in this module // into special section, // so that MallocHook::GetCallerStackTrace can function accurately. // Create a new arena. // The root metadata for the new arena is allocated in the // meta_data_arena; the DefaultArena() can be passed for meta_data_arena. // These values may be ored into flags: enum { // Report calls to Alloc() and Free() via the MallocHook interface. // Set in the DefaultArena. kCallMallocHook = 0x0001, // Make calls to Alloc(), Free() be async-signal-safe. Not set in // DefaultArena(). kAsyncSignalSafe = 0x0002, // When used with DefaultArena(), the NewArena() and DeleteArena() calls // obey the flags given explicitly in the NewArena() call, even if those // flags differ from the settings in DefaultArena(). So the call // NewArena(kAsyncSignalSafe, DefaultArena()) is itself async-signal-safe, // as well as generatating an arena that provides async-signal-safe // Alloc/Free. }; static Arena *NewArena(int32 flags, Arena *meta_data_arena); // Destroys an arena allocated by NewArena and returns true, // provided no allocated blocks remain in the arena. // If allocated blocks remain in the arena, does nothing and // returns false. // It is illegal to attempt to destroy the DefaultArena(). static bool DeleteArena(Arena *arena); // The default arena that always exists. static Arena *DefaultArena(); private: LowLevelAlloc(); // no instances }; #endif gperftools-2.4/src/google/0000755000000000000000000000000012454304760012562 500000000000000gperftools-2.4/src/google/heap-checker.h0000644000000000000000000000340212440704174015167 00000000000000// Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/heap-checker.h is deprecated. Use gperftools/heap-checker.h instead" #endif #include gperftools-2.4/src/google/heap-profiler.h0000644000000000000000000000341412440704174015410 00000000000000/* Copyright (c) 2005, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/heap-profiler.h is deprecated. Use gperftools/heap-profiler.h instead" #endif #include gperftools-2.4/src/google/malloc_extension.h0000644000000000000000000000342112440704174016214 00000000000000// Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/malloc_extension.h is deprecated. Use gperftools/malloc_extension.h instead" #endif #include gperftools-2.4/src/google/malloc_extension_c.h0000644000000000000000000000343312440704174016521 00000000000000/* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/malloc_extension_c.h is deprecated. Use gperftools/malloc_extension_c.h instead" #endif #include gperftools-2.4/src/google/malloc_hook.h0000644000000000000000000000340212440704174015137 00000000000000// Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/malloc_hook.h is deprecated. Use gperftools/malloc_hook.h instead" #endif #include gperftools-2.4/src/google/malloc_hook_c.h0000644000000000000000000000341412440704174015444 00000000000000/* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/malloc_hook_c.h is deprecated. Use gperftools/malloc_hook_c.h instead" #endif #include gperftools-2.4/src/google/profiler.h0000644000000000000000000000337512440704174014503 00000000000000/* Copyright (c) 2005, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/profiler.h is deprecated. Use gperftools/profiler.h instead" #endif #include gperftools-2.4/src/google/stacktrace.h0000644000000000000000000000337712440704174015007 00000000000000// Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/stacktrace.h is deprecated. Use gperftools/stacktrace.h instead" #endif #include gperftools-2.4/src/google/tcmalloc.h0000644000000000000000000000337512440704174014457 00000000000000/* Copyright (c) 2003, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* The code has moved to gperftools/. Use that include-directory for * new code. */ #ifdef __GNUC__ #warning "google/tcmalloc.h is deprecated. Use gperftools/tcmalloc.h instead" #endif #include gperftools-2.4/src/gperftools/0000755000000000000000000000000012454304760013472 500000000000000gperftools-2.4/src/gperftools/tcmalloc.h.in0000644000000000000000000001307712440704174015774 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2003, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat * .h file by Craig Silverstein */ #ifndef TCMALLOC_TCMALLOC_H_ #define TCMALLOC_TCMALLOC_H_ #include // for size_t #ifdef HAVE_SYS_CDEFS_H #include // where glibc defines __THROW #endif // __THROW is defined in glibc systems. It means, counter-intuitively, // "This function will never throw an exception." It's an optional // optimization tool, but we may need to use it to match glibc prototypes. #ifndef __THROW /* I guess we're not on a glibc system */ # define __THROW /* __THROW is just an optimization, so ok to make it "" */ #endif // Define the version number so folks can check against it #define TC_VERSION_MAJOR @TC_VERSION_MAJOR@ #define TC_VERSION_MINOR @TC_VERSION_MINOR@ #define TC_VERSION_PATCH "@TC_VERSION_PATCH@" #define TC_VERSION_STRING "gperftools @TC_VERSION_MAJOR@.@TC_VERSION_MINOR@@TC_VERSION_PATCH@" // For struct mallinfo, if it's defined. #ifdef HAVE_STRUCT_MALLINFO // Malloc can be in several places on older versions of OS X. # if defined(HAVE_MALLOC_H) # include # elif defined(HAVE_SYS_MALLOC_H) # include # elif defined(HAVE_MALLOC_MALLOC_H) # include # endif #endif // Annoying stuff for windows -- makes sure clients can import these functions #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif #ifdef __cplusplus namespace std { struct nothrow_t; } extern "C" { #endif // Returns a human-readable version string. If major, minor, // and/or patch are not NULL, they are set to the major version, // minor version, and patch-code (a string, usually ""). PERFTOOLS_DLL_DECL const char* tc_version(int* major, int* minor, const char** patch) __THROW; PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) __THROW; PERFTOOLS_DLL_DECL void tc_free(void* ptr) __THROW; PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_calloc(size_t nmemb, size_t size) __THROW; PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) __THROW; PERFTOOLS_DLL_DECL void* tc_memalign(size_t __alignment, size_t __size) __THROW; PERFTOOLS_DLL_DECL int tc_posix_memalign(void** ptr, size_t align, size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_valloc(size_t __size) __THROW; PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t __size) __THROW; PERFTOOLS_DLL_DECL void tc_malloc_stats(void) __THROW; PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) __THROW; #if @ac_cv_have_struct_mallinfo@ PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) __THROW; #endif // This is an alias for MallocExtension::instance()->GetAllocatedSize(). // It is equivalent to // OS X: malloc_size() // glibc: malloc_usable_size() // Windows: _msize() PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) __THROW; #ifdef __cplusplus PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) __THROW; PERFTOOLS_DLL_DECL void* tc_new(size_t size); PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void tc_delete(void* p) __THROW; PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void* tc_newarray(size_t size); PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void tc_deletearray(void* p) __THROW; PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p, const std::nothrow_t&) __THROW; } #endif #endif // #ifndef TCMALLOC_TCMALLOC_H_ gperftools-2.4/src/gperftools/stacktrace.h0000644000000000000000000001153312440704174015710 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Routines to extract the current stack trace. These functions are // thread-safe. #ifndef GOOGLE_STACKTRACE_H_ #define GOOGLE_STACKTRACE_H_ // Annoying stuff for windows -- makes sure clients can import these functions #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif // Skips the most recent "skip_count" stack frames (also skips the // frame generated for the "GetStackFrames" routine itself), and then // records the pc values for up to the next "max_depth" frames in // "result", and the corresponding stack frame sizes in "sizes". // Returns the number of values recorded in "result"/"sizes". // // Example: // main() { foo(); } // foo() { bar(); } // bar() { // void* result[10]; // int sizes[10]; // int depth = GetStackFrames(result, sizes, 10, 1); // } // // The GetStackFrames call will skip the frame for "bar". It will // return 2 and will produce pc values that map to the following // procedures: // result[0] foo // result[1] main // (Actually, there may be a few more entries after "main" to account for // startup procedures.) // And corresponding stack frame sizes will also be recorded: // sizes[0] 16 // sizes[1] 16 // (Stack frame sizes of 16 above are just for illustration purposes.) // Stack frame sizes of 0 or less indicate that those frame sizes couldn't // be identified. // // This routine may return fewer stack frame entries than are // available. Also note that "result" and "sizes" must both be non-NULL. extern PERFTOOLS_DLL_DECL int GetStackFrames(void** result, int* sizes, int max_depth, int skip_count); // Same as above, but to be used from a signal handler. The "uc" parameter // should be the pointer to ucontext_t which was passed as the 3rd parameter // to sa_sigaction signal handler. It may help the unwinder to get a // better stack trace under certain conditions. The "uc" may safely be NULL. extern PERFTOOLS_DLL_DECL int GetStackFramesWithContext(void** result, int* sizes, int max_depth, int skip_count, const void *uc); // This is similar to the GetStackFrames routine, except that it returns // the stack trace only, and not the stack frame sizes as well. // Example: // main() { foo(); } // foo() { bar(); } // bar() { // void* result[10]; // int depth = GetStackTrace(result, 10, 1); // } // // This produces: // result[0] foo // result[1] main // .... ... // // "result" must not be NULL. extern PERFTOOLS_DLL_DECL int GetStackTrace(void** result, int max_depth, int skip_count); // Same as above, but to be used from a signal handler. The "uc" parameter // should be the pointer to ucontext_t which was passed as the 3rd parameter // to sa_sigaction signal handler. It may help the unwinder to get a // better stack trace under certain conditions. The "uc" may safely be NULL. extern PERFTOOLS_DLL_DECL int GetStackTraceWithContext(void** result, int max_depth, int skip_count, const void *uc); #endif /* GOOGLE_STACKTRACE_H_ */ gperftools-2.4/src/gperftools/malloc_hook.h0000644000000000000000000003602712440704174016060 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Some of our malloc implementations can invoke the following hooks whenever // memory is allocated or deallocated. MallocHook is thread-safe, and things // you do before calling AddFooHook(MyHook) are visible to any resulting calls // to MyHook. Hooks must be thread-safe. If you write: // // CHECK(MallocHook::AddNewHook(&MyNewHook)); // // MyNewHook will be invoked in subsequent calls in the current thread, but // there are no guarantees on when it might be invoked in other threads. // // There are a limited number of slots available for each hook type. Add*Hook // will return false if there are no slots available. Remove*Hook will return // false if the given hook was not already installed. // // The order in which individual hooks are called in Invoke*Hook is undefined. // // It is safe for a hook to remove itself within Invoke*Hook and add other // hooks. Any hooks added inside a hook invocation (for the same hook type) // will not be invoked for the current invocation. // // One important user of these hooks is the heap profiler. // // CAVEAT: If you add new MallocHook::Invoke* calls then those calls must be // directly in the code of the (de)allocation function that is provided to the // user and that function must have an ATTRIBUTE_SECTION(malloc_hook) attribute. // // Note: the Invoke*Hook() functions are defined in malloc_hook-inl.h. If you // need to invoke a hook (which you shouldn't unless you're part of tcmalloc), // be sure to #include malloc_hook-inl.h in addition to malloc_hook.h. // // NOTE FOR C USERS: If you want to use malloc_hook functionality from // a C program, #include malloc_hook_c.h instead of this file. #ifndef _MALLOC_HOOK_H_ #define _MALLOC_HOOK_H_ #include #include extern "C" { #include // a C version of the malloc_hook interface } // Annoying stuff for windows -- makes sure clients can import these functions #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif // The C++ methods below call the C version (MallocHook_*), and thus // convert between an int and a bool. Windows complains about this // (a "performance warning") which we don't care about, so we suppress. #ifdef _MSC_VER #pragma warning(push) #pragma warning(disable:4800) #endif // Note: malloc_hook_c.h defines MallocHook_*Hook and // MallocHook_{Add,Remove}*Hook. The version of these inside the MallocHook // class are defined in terms of the malloc_hook_c version. See malloc_hook_c.h // for details of these types/functions. class PERFTOOLS_DLL_DECL MallocHook { public: // The NewHook is invoked whenever an object is allocated. // It may be passed NULL if the allocator returned NULL. typedef MallocHook_NewHook NewHook; inline static bool AddNewHook(NewHook hook) { return MallocHook_AddNewHook(hook); } inline static bool RemoveNewHook(NewHook hook) { return MallocHook_RemoveNewHook(hook); } inline static void InvokeNewHook(const void* p, size_t s); // The DeleteHook is invoked whenever an object is deallocated. // It may be passed NULL if the caller is trying to delete NULL. typedef MallocHook_DeleteHook DeleteHook; inline static bool AddDeleteHook(DeleteHook hook) { return MallocHook_AddDeleteHook(hook); } inline static bool RemoveDeleteHook(DeleteHook hook) { return MallocHook_RemoveDeleteHook(hook); } inline static void InvokeDeleteHook(const void* p); // The PreMmapHook is invoked with mmap or mmap64 arguments just // before the call is actually made. Such a hook may be useful // in memory limited contexts, to catch allocations that will exceed // a memory limit, and take outside actions to increase that limit. typedef MallocHook_PreMmapHook PreMmapHook; inline static bool AddPreMmapHook(PreMmapHook hook) { return MallocHook_AddPreMmapHook(hook); } inline static bool RemovePreMmapHook(PreMmapHook hook) { return MallocHook_RemovePreMmapHook(hook); } inline static void InvokePreMmapHook(const void* start, size_t size, int protection, int flags, int fd, off_t offset); // The MmapReplacement is invoked after the PreMmapHook but before // the call is actually made. The MmapReplacement should return true // if it handled the call, or false if it is still necessary to // call mmap/mmap64. // This should be used only by experts, and users must be be // extremely careful to avoid recursive calls to mmap. The replacement // should be async signal safe. // Only one MmapReplacement is supported. After setting an MmapReplacement // you must call RemoveMmapReplacement before calling SetMmapReplacement // again. typedef MallocHook_MmapReplacement MmapReplacement; inline static bool SetMmapReplacement(MmapReplacement hook) { return MallocHook_SetMmapReplacement(hook); } inline static bool RemoveMmapReplacement(MmapReplacement hook) { return MallocHook_RemoveMmapReplacement(hook); } inline static bool InvokeMmapReplacement(const void* start, size_t size, int protection, int flags, int fd, off_t offset, void** result); // The MmapHook is invoked whenever a region of memory is mapped. // It may be passed MAP_FAILED if the mmap failed. typedef MallocHook_MmapHook MmapHook; inline static bool AddMmapHook(MmapHook hook) { return MallocHook_AddMmapHook(hook); } inline static bool RemoveMmapHook(MmapHook hook) { return MallocHook_RemoveMmapHook(hook); } inline static void InvokeMmapHook(const void* result, const void* start, size_t size, int protection, int flags, int fd, off_t offset); // The MunmapReplacement is invoked with munmap arguments just before // the call is actually made. The MunmapReplacement should return true // if it handled the call, or false if it is still necessary to // call munmap. // This should be used only by experts. The replacement should be // async signal safe. // Only one MunmapReplacement is supported. After setting an // MunmapReplacement you must call RemoveMunmapReplacement before // calling SetMunmapReplacement again. typedef MallocHook_MunmapReplacement MunmapReplacement; inline static bool SetMunmapReplacement(MunmapReplacement hook) { return MallocHook_SetMunmapReplacement(hook); } inline static bool RemoveMunmapReplacement(MunmapReplacement hook) { return MallocHook_RemoveMunmapReplacement(hook); } inline static bool InvokeMunmapReplacement(const void* p, size_t size, int* result); // The MunmapHook is invoked whenever a region of memory is unmapped. typedef MallocHook_MunmapHook MunmapHook; inline static bool AddMunmapHook(MunmapHook hook) { return MallocHook_AddMunmapHook(hook); } inline static bool RemoveMunmapHook(MunmapHook hook) { return MallocHook_RemoveMunmapHook(hook); } inline static void InvokeMunmapHook(const void* p, size_t size); // The MremapHook is invoked whenever a region of memory is remapped. typedef MallocHook_MremapHook MremapHook; inline static bool AddMremapHook(MremapHook hook) { return MallocHook_AddMremapHook(hook); } inline static bool RemoveMremapHook(MremapHook hook) { return MallocHook_RemoveMremapHook(hook); } inline static void InvokeMremapHook(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr); // The PreSbrkHook is invoked just before sbrk is called -- except when // the increment is 0. This is because sbrk(0) is often called // to get the top of the memory stack, and is not actually a // memory-allocation call. It may be useful in memory-limited contexts, // to catch allocations that will exceed the limit and take outside // actions to increase such a limit. typedef MallocHook_PreSbrkHook PreSbrkHook; inline static bool AddPreSbrkHook(PreSbrkHook hook) { return MallocHook_AddPreSbrkHook(hook); } inline static bool RemovePreSbrkHook(PreSbrkHook hook) { return MallocHook_RemovePreSbrkHook(hook); } inline static void InvokePreSbrkHook(ptrdiff_t increment); // The SbrkHook is invoked whenever sbrk is called -- except when // the increment is 0. This is because sbrk(0) is often called // to get the top of the memory stack, and is not actually a // memory-allocation call. typedef MallocHook_SbrkHook SbrkHook; inline static bool AddSbrkHook(SbrkHook hook) { return MallocHook_AddSbrkHook(hook); } inline static bool RemoveSbrkHook(SbrkHook hook) { return MallocHook_RemoveSbrkHook(hook); } inline static void InvokeSbrkHook(const void* result, ptrdiff_t increment); // Get the current stack trace. Try to skip all routines up to and // and including the caller of MallocHook::Invoke*. // Use "skip_count" (similarly to GetStackTrace from stacktrace.h) // as a hint about how many routines to skip if better information // is not available. inline static int GetCallerStackTrace(void** result, int max_depth, int skip_count) { return MallocHook_GetCallerStackTrace(result, max_depth, skip_count); } // Unhooked versions of mmap() and munmap(). These should be used // only by experts, since they bypass heapchecking, etc. // Note: These do not run hooks, but they still use the MmapReplacement // and MunmapReplacement. static void* UnhookedMMap(void *start, size_t length, int prot, int flags, int fd, off_t offset); static int UnhookedMUnmap(void *start, size_t length); // The following are DEPRECATED. inline static NewHook GetNewHook(); inline static NewHook SetNewHook(NewHook hook) { return MallocHook_SetNewHook(hook); } inline static DeleteHook GetDeleteHook(); inline static DeleteHook SetDeleteHook(DeleteHook hook) { return MallocHook_SetDeleteHook(hook); } inline static PreMmapHook GetPreMmapHook(); inline static PreMmapHook SetPreMmapHook(PreMmapHook hook) { return MallocHook_SetPreMmapHook(hook); } inline static MmapHook GetMmapHook(); inline static MmapHook SetMmapHook(MmapHook hook) { return MallocHook_SetMmapHook(hook); } inline static MunmapHook GetMunmapHook(); inline static MunmapHook SetMunmapHook(MunmapHook hook) { return MallocHook_SetMunmapHook(hook); } inline static MremapHook GetMremapHook(); inline static MremapHook SetMremapHook(MremapHook hook) { return MallocHook_SetMremapHook(hook); } inline static PreSbrkHook GetPreSbrkHook(); inline static PreSbrkHook SetPreSbrkHook(PreSbrkHook hook) { return MallocHook_SetPreSbrkHook(hook); } inline static SbrkHook GetSbrkHook(); inline static SbrkHook SetSbrkHook(SbrkHook hook) { return MallocHook_SetSbrkHook(hook); } // End of DEPRECATED methods. private: // Slow path versions of Invoke*Hook. static void InvokeNewHookSlow(const void* p, size_t s); static void InvokeDeleteHookSlow(const void* p); static void InvokePreMmapHookSlow(const void* start, size_t size, int protection, int flags, int fd, off_t offset); static void InvokeMmapHookSlow(const void* result, const void* start, size_t size, int protection, int flags, int fd, off_t offset); static bool InvokeMmapReplacementSlow(const void* start, size_t size, int protection, int flags, int fd, off_t offset, void** result); static void InvokeMunmapHookSlow(const void* p, size_t size); static bool InvokeMunmapReplacementSlow(const void* p, size_t size, int* result); static void InvokeMremapHookSlow(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr); static void InvokePreSbrkHookSlow(ptrdiff_t increment); static void InvokeSbrkHookSlow(const void* result, ptrdiff_t increment); }; #ifdef _MSC_VER #pragma warning(pop) #endif #endif /* _MALLOC_HOOK_H_ */ gperftools-2.4/src/gperftools/malloc_hook_c.h0000644000000000000000000001537112372001603016350 00000000000000/* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * -- * Author: Craig Silverstein * * C shims for the C++ malloc_hook.h. See malloc_hook.h for details * on how to use these. */ #ifndef _MALLOC_HOOK_C_H_ #define _MALLOC_HOOK_C_H_ #include #include /* Annoying stuff for windows; makes sure clients can import these functions */ #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif #ifdef __cplusplus extern "C" { #endif /* Get the current stack trace. Try to skip all routines up to and * and including the caller of MallocHook::Invoke*. * Use "skip_count" (similarly to GetStackTrace from stacktrace.h) * as a hint about how many routines to skip if better information * is not available. */ PERFTOOLS_DLL_DECL int MallocHook_GetCallerStackTrace(void** result, int max_depth, int skip_count); /* The MallocHook_{Add,Remove}*Hook functions return 1 on success and 0 on * failure. */ typedef void (*MallocHook_NewHook)(const void* ptr, size_t size); PERFTOOLS_DLL_DECL int MallocHook_AddNewHook(MallocHook_NewHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemoveNewHook(MallocHook_NewHook hook); typedef void (*MallocHook_DeleteHook)(const void* ptr); PERFTOOLS_DLL_DECL int MallocHook_AddDeleteHook(MallocHook_DeleteHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemoveDeleteHook(MallocHook_DeleteHook hook); typedef void (*MallocHook_PreMmapHook)(const void *start, size_t size, int protection, int flags, int fd, off_t offset); PERFTOOLS_DLL_DECL int MallocHook_AddPreMmapHook(MallocHook_PreMmapHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemovePreMmapHook(MallocHook_PreMmapHook hook); typedef void (*MallocHook_MmapHook)(const void* result, const void* start, size_t size, int protection, int flags, int fd, off_t offset); PERFTOOLS_DLL_DECL int MallocHook_AddMmapHook(MallocHook_MmapHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemoveMmapHook(MallocHook_MmapHook hook); typedef int (*MallocHook_MmapReplacement)(const void* start, size_t size, int protection, int flags, int fd, off_t offset, void** result); int MallocHook_SetMmapReplacement(MallocHook_MmapReplacement hook); int MallocHook_RemoveMmapReplacement(MallocHook_MmapReplacement hook); typedef void (*MallocHook_MunmapHook)(const void* ptr, size_t size); PERFTOOLS_DLL_DECL int MallocHook_AddMunmapHook(MallocHook_MunmapHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemoveMunmapHook(MallocHook_MunmapHook hook); typedef int (*MallocHook_MunmapReplacement)(const void* ptr, size_t size, int* result); int MallocHook_SetMunmapReplacement(MallocHook_MunmapReplacement hook); int MallocHook_RemoveMunmapReplacement(MallocHook_MunmapReplacement hook); typedef void (*MallocHook_MremapHook)(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr); PERFTOOLS_DLL_DECL int MallocHook_AddMremapHook(MallocHook_MremapHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemoveMremapHook(MallocHook_MremapHook hook); typedef void (*MallocHook_PreSbrkHook)(ptrdiff_t increment); PERFTOOLS_DLL_DECL int MallocHook_AddPreSbrkHook(MallocHook_PreSbrkHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemovePreSbrkHook(MallocHook_PreSbrkHook hook); typedef void (*MallocHook_SbrkHook)(const void* result, ptrdiff_t increment); PERFTOOLS_DLL_DECL int MallocHook_AddSbrkHook(MallocHook_SbrkHook hook); PERFTOOLS_DLL_DECL int MallocHook_RemoveSbrkHook(MallocHook_SbrkHook hook); /* The following are DEPRECATED. */ PERFTOOLS_DLL_DECL MallocHook_NewHook MallocHook_SetNewHook(MallocHook_NewHook hook); PERFTOOLS_DLL_DECL MallocHook_DeleteHook MallocHook_SetDeleteHook(MallocHook_DeleteHook hook); PERFTOOLS_DLL_DECL MallocHook_PreMmapHook MallocHook_SetPreMmapHook(MallocHook_PreMmapHook hook); PERFTOOLS_DLL_DECL MallocHook_MmapHook MallocHook_SetMmapHook(MallocHook_MmapHook hook); PERFTOOLS_DLL_DECL MallocHook_MunmapHook MallocHook_SetMunmapHook(MallocHook_MunmapHook hook); PERFTOOLS_DLL_DECL MallocHook_MremapHook MallocHook_SetMremapHook(MallocHook_MremapHook hook); PERFTOOLS_DLL_DECL MallocHook_PreSbrkHook MallocHook_SetPreSbrkHook(MallocHook_PreSbrkHook hook); PERFTOOLS_DLL_DECL MallocHook_SbrkHook MallocHook_SetSbrkHook(MallocHook_SbrkHook hook); /* End of DEPRECATED functions. */ #ifdef __cplusplus } // extern "C" #endif #endif /* _MALLOC_HOOK_C_H_ */ gperftools-2.4/src/gperftools/malloc_extension.h0000644000000000000000000004477212440704174017142 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Extra extensions exported by some malloc implementations. These // extensions are accessed through a virtual base class so an // application can link against a malloc that does not implement these // extensions, and it will get default versions that do nothing. // // NOTE FOR C USERS: If you wish to use this functionality from within // a C program, see malloc_extension_c.h. #ifndef BASE_MALLOC_EXTENSION_H_ #define BASE_MALLOC_EXTENSION_H_ #include // I can't #include config.h in this public API file, but I should // really use configure (and make malloc_extension.h a .in file) to // figure out if the system has stdint.h or not. But I'm lazy, so // for now I'm assuming it's a problem only with MSVC. #ifndef _MSC_VER #include #endif #include #include // Annoying stuff for windows -- makes sure clients can import these functions #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif static const int kMallocHistogramSize = 64; // One day, we could support other types of writers (perhaps for C?) typedef std::string MallocExtensionWriter; namespace base { struct MallocRange; } // Interface to a pluggable system allocator. class PERFTOOLS_DLL_DECL SysAllocator { public: SysAllocator() { } virtual ~SysAllocator(); // Allocates "size"-byte of memory from system aligned with "alignment". // Returns NULL if failed. Otherwise, the returned pointer p up to and // including (p + actual_size -1) have been allocated. virtual void* Alloc(size_t size, size_t *actual_size, size_t alignment) = 0; }; // The default implementations of the following routines do nothing. // All implementations should be thread-safe; the current one // (TCMallocImplementation) is. class PERFTOOLS_DLL_DECL MallocExtension { public: virtual ~MallocExtension(); // Call this very early in the program execution -- say, in a global // constructor -- to set up parameters and state needed by all // instrumented malloc implemenatations. One example: this routine // sets environemnt variables to tell STL to use libc's malloc() // instead of doing its own memory management. This is safe to call // multiple times, as long as each time is before threads start up. static void Initialize(); // See "verify_memory.h" to see what these routines do virtual bool VerifyAllMemory(); virtual bool VerifyNewMemory(const void* p); virtual bool VerifyArrayNewMemory(const void* p); virtual bool VerifyMallocMemory(const void* p); virtual bool MallocMemoryStats(int* blocks, size_t* total, int histogram[kMallocHistogramSize]); // Get a human readable description of the current state of the malloc // data structures. The state is stored as a null-terminated string // in a prefix of "buffer[0,buffer_length-1]". // REQUIRES: buffer_length > 0. virtual void GetStats(char* buffer, int buffer_length); // Outputs to "writer" a sample of live objects and the stack traces // that allocated these objects. The format of the returned output // is equivalent to the output of the heap profiler and can // therefore be passed to "pprof". This function is equivalent to // ReadStackTraces. The main difference is that this function returns // serialized data appropriately formatted for use by the pprof tool. // NOTE: by default, tcmalloc does not do any heap sampling, and this // function will always return an empty sample. To get useful // data from GetHeapSample, you must also set the environment // variable TCMALLOC_SAMPLE_PARAMETER to a value such as 524288. virtual void GetHeapSample(MallocExtensionWriter* writer); // Outputs to "writer" the stack traces that caused growth in the // address space size. The format of the returned output is // equivalent to the output of the heap profiler and can therefore // be passed to "pprof". This function is equivalent to // ReadHeapGrowthStackTraces. The main difference is that this function // returns serialized data appropriately formatted for use by the // pprof tool. (This does not depend on, or require, // TCMALLOC_SAMPLE_PARAMETER.) virtual void GetHeapGrowthStacks(MallocExtensionWriter* writer); // Invokes func(arg, range) for every controlled memory // range. *range is filled in with information about the range. // // This is a best-effort interface useful only for performance // analysis. The implementation may not call func at all. typedef void (RangeFunction)(void*, const base::MallocRange*); virtual void Ranges(void* arg, RangeFunction func); // ------------------------------------------------------------------- // Control operations for getting and setting malloc implementation // specific parameters. Some currently useful properties: // // generic // ------- // "generic.current_allocated_bytes" // Number of bytes currently allocated by application // This property is not writable. // // "generic.heap_size" // Number of bytes in the heap == // current_allocated_bytes + // fragmentation + // freed memory regions // This property is not writable. // // tcmalloc // -------- // "tcmalloc.max_total_thread_cache_bytes" // Upper limit on total number of bytes stored across all // per-thread caches. Default: 16MB. // // "tcmalloc.current_total_thread_cache_bytes" // Number of bytes used across all thread caches. // This property is not writable. // // "tcmalloc.central_cache_free_bytes" // Number of free bytes in the central cache that have been // assigned to size classes. They always count towards virtual // memory usage, and unless the underlying memory is swapped out // by the OS, they also count towards physical memory usage. // This property is not writable. // // "tcmalloc.transfer_cache_free_bytes" // Number of free bytes that are waiting to be transfered between // the central cache and a thread cache. They always count // towards virtual memory usage, and unless the underlying memory // is swapped out by the OS, they also count towards physical // memory usage. This property is not writable. // // "tcmalloc.thread_cache_free_bytes" // Number of free bytes in thread caches. They always count // towards virtual memory usage, and unless the underlying memory // is swapped out by the OS, they also count towards physical // memory usage. This property is not writable. // // "tcmalloc.pageheap_free_bytes" // Number of bytes in free, mapped pages in page heap. These // bytes can be used to fulfill allocation requests. They // always count towards virtual memory usage, and unless the // underlying memory is swapped out by the OS, they also count // towards physical memory usage. This property is not writable. // // "tcmalloc.pageheap_unmapped_bytes" // Number of bytes in free, unmapped pages in page heap. // These are bytes that have been released back to the OS, // possibly by one of the MallocExtension "Release" calls. // They can be used to fulfill allocation requests, but // typically incur a page fault. They always count towards // virtual memory usage, and depending on the OS, typically // do not count towards physical memory usage. This property // is not writable. // ------------------------------------------------------------------- // Get the named "property"'s value. Returns true if the property // is known. Returns false if the property is not a valid property // name for the current malloc implementation. // REQUIRES: property != NULL; value != NULL virtual bool GetNumericProperty(const char* property, size_t* value); // Set the named "property"'s value. Returns true if the property // is known and writable. Returns false if the property is not a // valid property name for the current malloc implementation, or // is not writable. // REQUIRES: property != NULL virtual bool SetNumericProperty(const char* property, size_t value); // Mark the current thread as "idle". This routine may optionally // be called by threads as a hint to the malloc implementation that // any thread-specific resources should be released. Note: this may // be an expensive routine, so it should not be called too often. // // Also, if the code that calls this routine will go to sleep for // a while, it should take care to not allocate anything between // the call to this routine and the beginning of the sleep. // // Most malloc implementations ignore this routine. virtual void MarkThreadIdle(); // Mark the current thread as "busy". This routine should be // called after MarkThreadIdle() if the thread will now do more // work. If this method is not called, performance may suffer. // // Most malloc implementations ignore this routine. virtual void MarkThreadBusy(); // Gets the system allocator used by the malloc extension instance. Returns // NULL for malloc implementations that do not support pluggable system // allocators. virtual SysAllocator* GetSystemAllocator(); // Sets the system allocator to the specified. // // Users could register their own system allocators for malloc implementation // that supports pluggable system allocators, such as TCMalloc, by doing: // alloc = new MyOwnSysAllocator(); // MallocExtension::instance()->SetSystemAllocator(alloc); // It's up to users whether to fall back (recommended) to the default // system allocator (use GetSystemAllocator() above) or not. The caller is // responsible to any necessary locking. // See tcmalloc/system-alloc.h for the interface and // tcmalloc/memfs_malloc.cc for the examples. // // It's a no-op for malloc implementations that do not support pluggable // system allocators. virtual void SetSystemAllocator(SysAllocator *a); // Try to release num_bytes of free memory back to the operating // system for reuse. Use this extension with caution -- to get this // memory back may require faulting pages back in by the OS, and // that may be slow. (Currently only implemented in tcmalloc.) virtual void ReleaseToSystem(size_t num_bytes); // Same as ReleaseToSystem() but release as much memory as possible. virtual void ReleaseFreeMemory(); // Sets the rate at which we release unused memory to the system. // Zero means we never release memory back to the system. Increase // this flag to return memory faster; decrease it to return memory // slower. Reasonable rates are in the range [0,10]. (Currently // only implemented in tcmalloc). virtual void SetMemoryReleaseRate(double rate); // Gets the release rate. Returns a value < 0 if unknown. virtual double GetMemoryReleaseRate(); // Returns the estimated number of bytes that will be allocated for // a request of "size" bytes. This is an estimate: an allocation of // SIZE bytes may reserve more bytes, but will never reserve less. // (Currently only implemented in tcmalloc, other implementations // always return SIZE.) // This is equivalent to malloc_good_size() in OS X. virtual size_t GetEstimatedAllocatedSize(size_t size); // Returns the actual number N of bytes reserved by tcmalloc for the // pointer p. The client is allowed to use the range of bytes // [p, p+N) in any way it wishes (i.e. N is the "usable size" of this // allocation). This number may be equal to or greater than the number // of bytes requested when p was allocated. // p must have been allocated by this malloc implementation, // must not be an interior pointer -- that is, must be exactly // the pointer returned to by malloc() et al., not some offset // from that -- and should not have been freed yet. p may be NULL. // (Currently only implemented in tcmalloc; other implementations // will return 0.) // This is equivalent to malloc_size() in OS X, malloc_usable_size() // in glibc, and _msize() for windows. virtual size_t GetAllocatedSize(const void* p); // Returns kOwned if this malloc implementation allocated the memory // pointed to by p, or kNotOwned if some other malloc implementation // allocated it or p is NULL. May also return kUnknownOwnership if // the malloc implementation does not keep track of ownership. // REQUIRES: p must be a value returned from a previous call to // malloc(), calloc(), realloc(), memalign(), posix_memalign(), // valloc(), pvalloc(), new, or new[], and must refer to memory that // is currently allocated (so, for instance, you should not pass in // a pointer after having called free() on it). enum Ownership { // NOTE: Enum values MUST be kept in sync with the version in // malloc_extension_c.h kUnknownOwnership = 0, kOwned, kNotOwned }; virtual Ownership GetOwnership(const void* p); // The current malloc implementation. Always non-NULL. static MallocExtension* instance(); // Change the malloc implementation. Typically called by the // malloc implementation during initialization. static void Register(MallocExtension* implementation); // Returns detailed information about malloc's freelists. For each list, // return a FreeListInfo: struct FreeListInfo { size_t min_object_size; size_t max_object_size; size_t total_bytes_free; const char* type; }; // Each item in the vector refers to a different freelist. The lists // are identified by the range of allocations that objects in the // list can satisfy ([min_object_size, max_object_size]) and the // type of freelist (see below). The current size of the list is // returned in total_bytes_free (which count against a processes // resident and virtual size). // // Currently supported types are: // // "tcmalloc.page{_unmapped}" - tcmalloc's page heap. An entry for each size // class in the page heap is returned. Bytes in "page_unmapped" // are no longer backed by physical memory and do not count against // the resident size of a process. // // "tcmalloc.large{_unmapped}" - tcmalloc's list of objects larger // than the largest page heap size class. Only one "large" // entry is returned. There is no upper-bound on the size // of objects in the large free list; this call returns // kint64max for max_object_size. Bytes in // "large_unmapped" are no longer backed by physical memory // and do not count against the resident size of a process. // // "tcmalloc.central" - tcmalloc's central free-list. One entry per // size-class is returned. Never unmapped. // // "debug.free_queue" - free objects queued by the debug allocator // and not returned to tcmalloc. // // "tcmalloc.thread" - tcmalloc's per-thread caches. Never unmapped. virtual void GetFreeListSizes(std::vector* v); // Get a list of stack traces of sampled allocation points. Returns // a pointer to a "new[]-ed" result array, and stores the sample // period in "sample_period". // // The state is stored as a sequence of adjacent entries // in the returned array. Each entry has the following form: // uintptr_t count; // Number of objects with following trace // uintptr_t size; // Total size of objects with following trace // uintptr_t depth; // Number of PC values in stack trace // void* stack[depth]; // PC values that form the stack trace // // The list of entries is terminated by a "count" of 0. // // It is the responsibility of the caller to "delete[]" the returned array. // // May return NULL to indicate no results. // // This is an internal extension. Callers should use the more // convenient "GetHeapSample(string*)" method defined above. virtual void** ReadStackTraces(int* sample_period); // Like ReadStackTraces(), but returns stack traces that caused growth // in the address space size. virtual void** ReadHeapGrowthStackTraces(); }; namespace base { // Information passed per range. More fields may be added later. struct MallocRange { enum Type { INUSE, // Application is using this range FREE, // Range is currently free UNMAPPED, // Backing physical memory has been returned to the OS UNKNOWN // More enum values may be added in the future }; uintptr_t address; // Address of range size_t length; // Byte length of range Type type; // Type of this range double fraction; // Fraction of range that is being used (0 if !INUSE) // Perhaps add the following: // - stack trace if this range was sampled // - heap growth stack trace if applicable to this range // - age when allocated (for inuse) or freed (if not in use) }; } // namespace base #endif // BASE_MALLOC_EXTENSION_H_ gperftools-2.4/src/gperftools/malloc_extension_c.h0000644000000000000000000000773412450132572017437 00000000000000/* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * -- * Author: Craig Silverstein * * C shims for the C++ malloc_extension.h. See malloc_extension.h for * details. Note these C shims always work on * MallocExtension::instance(); it is not possible to have more than * one MallocExtension object in C applications. */ #ifndef _MALLOC_EXTENSION_C_H_ #define _MALLOC_EXTENSION_C_H_ #include #include /* Annoying stuff for windows -- makes sure clients can import these fns */ #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif #ifdef __cplusplus extern "C" { #endif #define kMallocExtensionHistogramSize 64 PERFTOOLS_DLL_DECL int MallocExtension_VerifyAllMemory(void); PERFTOOLS_DLL_DECL int MallocExtension_VerifyNewMemory(const void* p); PERFTOOLS_DLL_DECL int MallocExtension_VerifyArrayNewMemory(const void* p); PERFTOOLS_DLL_DECL int MallocExtension_VerifyMallocMemory(const void* p); PERFTOOLS_DLL_DECL int MallocExtension_MallocMemoryStats(int* blocks, size_t* total, int histogram[kMallocExtensionHistogramSize]); PERFTOOLS_DLL_DECL void MallocExtension_GetStats(char* buffer, int buffer_length); /* TODO(csilvers): write a C version of these routines, that perhaps * takes a function ptr and a void *. */ /* void MallocExtension_GetHeapSample(string* result); */ /* void MallocExtension_GetHeapGrowthStacks(string* result); */ PERFTOOLS_DLL_DECL int MallocExtension_GetNumericProperty(const char* property, size_t* value); PERFTOOLS_DLL_DECL int MallocExtension_SetNumericProperty(const char* property, size_t value); PERFTOOLS_DLL_DECL void MallocExtension_MarkThreadIdle(void); PERFTOOLS_DLL_DECL void MallocExtension_MarkThreadBusy(void); PERFTOOLS_DLL_DECL void MallocExtension_ReleaseToSystem(size_t num_bytes); PERFTOOLS_DLL_DECL void MallocExtension_ReleaseFreeMemory(void); PERFTOOLS_DLL_DECL size_t MallocExtension_GetEstimatedAllocatedSize(size_t size); PERFTOOLS_DLL_DECL size_t MallocExtension_GetAllocatedSize(const void* p); /* * NOTE: These enum values MUST be kept in sync with the version in * malloc_extension.h */ typedef enum { MallocExtension_kUnknownOwnership = 0, MallocExtension_kOwned, MallocExtension_kNotOwned } MallocExtension_Ownership; PERFTOOLS_DLL_DECL MallocExtension_Ownership MallocExtension_GetOwnership(const void* p); #ifdef __cplusplus } /* extern "C" */ #endif #endif /* _MALLOC_EXTENSION_C_H_ */ gperftools-2.4/src/gperftools/heap-profiler.h0000644000000000000000000000767212440704174016332 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2005, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat * * Module for heap-profiling. * * For full(er) information, see doc/heapprofile.html * * This module can be linked into your program with * no slowdown caused by this unless you activate the profiler * using one of the following methods: * * 1. Before starting the program, set the environment variable * "HEAPPROFILE" to be the name of the file to which the profile * data should be written. * * 2. Programmatically, start and stop the profiler using the * routines "HeapProfilerStart(filename)" and "HeapProfilerStop()". * */ #ifndef BASE_HEAP_PROFILER_H_ #define BASE_HEAP_PROFILER_H_ #include /* Annoying stuff for windows; makes sure clients can import these functions */ #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif /* All this code should be usable from within C apps. */ #ifdef __cplusplus extern "C" { #endif /* Start profiling and arrange to write profile data to file names * of the form: "prefix.0000", "prefix.0001", ... */ PERFTOOLS_DLL_DECL void HeapProfilerStart(const char* prefix); /* Returns non-zero if we are currently profiling the heap. (Returns * an int rather than a bool so it's usable from C.) This is true * between calls to HeapProfilerStart() and HeapProfilerStop(), and * also if the program has been run with HEAPPROFILER, or some other * way to turn on whole-program profiling. */ int IsHeapProfilerRunning(); /* Stop heap profiling. Can be restarted again with HeapProfilerStart(), * but the currently accumulated profiling information will be cleared. */ PERFTOOLS_DLL_DECL void HeapProfilerStop(); /* Dump a profile now - can be used for dumping at a hopefully * quiescent state in your program, in order to more easily track down * memory leaks. Will include the reason in the logged message */ PERFTOOLS_DLL_DECL void HeapProfilerDump(const char *reason); /* Generate current heap profiling information. * Returns an empty string when heap profiling is not active. * The returned pointer is a '\0'-terminated string allocated using malloc() * and should be free()-ed as soon as the caller does not need it anymore. */ PERFTOOLS_DLL_DECL char* GetHeapProfile(); #ifdef __cplusplus } // extern "C" #endif #endif /* BASE_HEAP_PROFILER_H_ */ gperftools-2.4/src/gperftools/heap-checker.h0000644000000000000000000004244612440704174016112 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Maxim Lifantsev (with design ideas by Sanjay Ghemawat) // // // Module for detecing heap (memory) leaks. // // For full(er) information, see doc/heap_checker.html // // This module can be linked into programs with // no slowdown caused by this unless you activate the leak-checker: // // 1. Set the environment variable HEAPCHEK to _type_ before // running the program. // // _type_ is usually "normal" but can also be "minimal", "strict", or // "draconian". (See the html file for other options, like 'local'.) // // After that, just run your binary. If the heap-checker detects // a memory leak at program-exit, it will print instructions on how // to track down the leak. #ifndef BASE_HEAP_CHECKER_H_ #define BASE_HEAP_CHECKER_H_ #include // for size_t // I can't #include config.h in this public API file, but I should // really use configure (and make malloc_extension.h a .in file) to // figure out if the system has stdint.h or not. But I'm lazy, so // for now I'm assuming it's a problem only with MSVC. #ifndef _MSC_VER #include // for uintptr_t #endif #include // for va_list #include // Annoying stuff for windows -- makes sure clients can import these functions #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif // The class is thread-safe with respect to all the provided static methods, // as well as HeapLeakChecker objects: they can be accessed by multiple threads. class PERFTOOLS_DLL_DECL HeapLeakChecker { public: // ----------------------------------------------------------------------- // // Static functions for working with (whole-program) leak checking. // If heap leak checking is currently active in some mode // e.g. if leak checking was started (and is still active now) // due to HEAPCHECK=... defined in the environment. // The return value reflects iff HeapLeakChecker objects manually // constructed right now will be doing leak checking or nothing. // Note that we can go from active to inactive state during InitGoogle() // if FLAGS_heap_check gets set to "" by some code before/during InitGoogle(). static bool IsActive(); // Return pointer to the whole-program checker if it has been created // and NULL otherwise. // Once GlobalChecker() returns non-NULL that object will not disappear and // will be returned by all later GlobalChecker calls. // This is mainly to access BytesLeaked() and ObjectsLeaked() (see below) // for the whole-program checker after one calls NoGlobalLeaks() // or similar and gets false. static HeapLeakChecker* GlobalChecker(); // Do whole-program leak check now (if it was activated for this binary); // return false only if it was activated and has failed. // The mode of the check is controlled by the command-line flags. // This method can be called repeatedly. // Things like GlobalChecker()->SameHeap() can also be called explicitly // to do the desired flavor of the check. static bool NoGlobalLeaks(); // If whole-program checker if active, // cancel its automatic execution after main() exits. // This requires that some leak check (e.g. NoGlobalLeaks()) // has been called at least once on the whole-program checker. static void CancelGlobalCheck(); // ----------------------------------------------------------------------- // // Non-static functions for starting and doing leak checking. // Start checking and name the leak check performed. // The name is used in naming dumped profiles // and needs to be unique only within your binary. // It must also be a string that can be a part of a file name, // in particular not contain path expressions. explicit HeapLeakChecker(const char *name); // Destructor (verifies that some *NoLeaks or *SameHeap method // has been called at least once). ~HeapLeakChecker(); // These used to be different but are all the same now: they return // true iff all memory allocated since this HeapLeakChecker object // was constructor is still reachable from global state. // // Because we fork to convert addresses to symbol-names, and forking // is not thread-safe, and we may be called in a threaded context, // we do not try to symbolize addresses when called manually. bool NoLeaks() { return DoNoLeaks(DO_NOT_SYMBOLIZE); } // These forms are obsolete; use NoLeaks() instead. // TODO(csilvers): mark as DEPRECATED. bool QuickNoLeaks() { return NoLeaks(); } bool BriefNoLeaks() { return NoLeaks(); } bool SameHeap() { return NoLeaks(); } bool QuickSameHeap() { return NoLeaks(); } bool BriefSameHeap() { return NoLeaks(); } // Detailed information about the number of leaked bytes and objects // (both of these can be negative as well). // These are available only after a *SameHeap or *NoLeaks // method has been called. // Note that it's possible for both of these to be zero // while SameHeap() or NoLeaks() returned false in case // of a heap state change that is significant // but preserves the byte and object counts. ssize_t BytesLeaked() const; ssize_t ObjectsLeaked() const; // ----------------------------------------------------------------------- // // Static helpers to make us ignore certain leaks. // Scoped helper class. Should be allocated on the stack inside a // block of code. Any heap allocations done in the code block // covered by the scoped object (including in nested function calls // done by the code block) will not be reported as leaks. This is // the recommended replacement for the GetDisableChecksStart() and // DisableChecksToHereFrom() routines below. // // Example: // void Foo() { // HeapLeakChecker::Disabler disabler; // ... code that allocates objects whose leaks should be ignored ... // } // // REQUIRES: Destructor runs in same thread as constructor class Disabler { public: Disabler(); ~Disabler(); private: Disabler(const Disabler&); // disallow copy void operator=(const Disabler&); // and assign }; // Ignore an object located at 'ptr' (can go at the start or into the object) // as well as all heap objects (transitively) referenced from it for the // purposes of heap leak checking. Returns 'ptr' so that one can write // static T* obj = IgnoreObject(new T(...)); // // If 'ptr' does not point to an active allocated object at the time of this // call, it is ignored; but if it does, the object must not get deleted from // the heap later on. // // See also HiddenPointer, below, if you need to prevent a pointer from // being traversed by the heap checker but do not wish to transitively // whitelist objects referenced through it. template static T* IgnoreObject(T* ptr) { DoIgnoreObject(static_cast(const_cast(ptr))); return ptr; } // Undo what an earlier IgnoreObject() call promised and asked to do. // At the time of this call 'ptr' must point at or inside of an active // allocated object which was previously registered with IgnoreObject(). static void UnIgnoreObject(const void* ptr); // ----------------------------------------------------------------------- // // Internal types defined in .cc class Allocator; struct RangeValue; private: // ----------------------------------------------------------------------- // // Various helpers // Create the name of the heap profile file. // Should be deleted via Allocator::Free(). char* MakeProfileNameLocked(); // Helper for constructors void Create(const char *name, bool make_start_snapshot); enum ShouldSymbolize { SYMBOLIZE, DO_NOT_SYMBOLIZE }; // Helper for *NoLeaks and *SameHeap bool DoNoLeaks(ShouldSymbolize should_symbolize); // Helper for NoGlobalLeaks, also called by the global destructor. static bool NoGlobalLeaksMaybeSymbolize(ShouldSymbolize should_symbolize); // These used to be public, but they are now deprecated. // Will remove entirely when all internal uses are fixed. // In the meantime, use friendship so the unittest can still test them. static void* GetDisableChecksStart(); static void DisableChecksToHereFrom(const void* start_address); static void DisableChecksIn(const char* pattern); friend void RangeDisabledLeaks(); friend void NamedTwoDisabledLeaks(); friend void* RunNamedDisabledLeaks(void*); friend void TestHeapLeakCheckerNamedDisabling(); // Actually implements IgnoreObject(). static void DoIgnoreObject(const void* ptr); // Disable checks based on stack trace entry at a depth <= // max_depth. Used to hide allocations done inside some special // libraries. static void DisableChecksFromToLocked(const void* start_address, const void* end_address, int max_depth); // Helper for DoNoLeaks to ignore all objects reachable from all live data static void IgnoreAllLiveObjectsLocked(const void* self_stack_top); // Callback we pass to TCMalloc_ListAllProcessThreads (see thread_lister.h) // that is invoked when all threads of our process are found and stopped. // The call back does the things needed to ignore live data reachable from // thread stacks and registers for all our threads // as well as do other global-live-data ignoring // (via IgnoreNonThreadLiveObjectsLocked) // during the quiet state of all threads being stopped. // For the argument meaning see the comment by TCMalloc_ListAllProcessThreads. // Here we only use num_threads and thread_pids, that TCMalloc_ListAllProcessThreads // fills for us with the number and pids of all the threads of our process // it found and attached to. static int IgnoreLiveThreadsLocked(void* parameter, int num_threads, pid_t* thread_pids, va_list ap); // Helper for IgnoreAllLiveObjectsLocked and IgnoreLiveThreadsLocked // that we prefer to execute from IgnoreLiveThreadsLocked // while all threads are stopped. // This helper does live object discovery and ignoring // for all objects that are reachable from everything // not related to thread stacks and registers. static void IgnoreNonThreadLiveObjectsLocked(); // Helper for IgnoreNonThreadLiveObjectsLocked and IgnoreLiveThreadsLocked // to discover and ignore all heap objects // reachable from currently considered live objects // (live_objects static global variable in out .cc file). // "name", "name2" are two strings that we print one after another // in a debug message to describe what kind of live object sources // are being used. static void IgnoreLiveObjectsLocked(const char* name, const char* name2); // Do the overall whole-program heap leak check if needed; // returns true when did the leak check. static bool DoMainHeapCheck(); // Type of task for UseProcMapsLocked enum ProcMapsTask { RECORD_GLOBAL_DATA, DISABLE_LIBRARY_ALLOCS }; // Success/Error Return codes for UseProcMapsLocked. enum ProcMapsResult { PROC_MAPS_USED, CANT_OPEN_PROC_MAPS, NO_SHARED_LIBS_IN_PROC_MAPS }; // Read /proc/self/maps, parse it, and do the 'proc_maps_task' for each line. static ProcMapsResult UseProcMapsLocked(ProcMapsTask proc_maps_task); // A ProcMapsTask to disable allocations from 'library' // that is mapped to [start_address..end_address) // (only if library is a certain system library). static void DisableLibraryAllocsLocked(const char* library, uintptr_t start_address, uintptr_t end_address); // Return true iff "*ptr" points to a heap object // ("*ptr" can point at the start or inside of a heap object // so that this works e.g. for pointers to C++ arrays, C++ strings, // multiple-inherited objects, or pointers to members). // We also fill *object_size for this object then // and we move "*ptr" to point to the very start of the heap object. static inline bool HaveOnHeapLocked(const void** ptr, size_t* object_size); // Helper to shutdown heap leak checker when it's not needed // or can't function properly. static void TurnItselfOffLocked(); // Internally-used c-tor to start whole-executable checking. HeapLeakChecker(); // ----------------------------------------------------------------------- // // Friends and externally accessed helpers. // Helper for VerifyHeapProfileTableStackGet in the unittest // to get the recorded allocation caller for ptr, // which must be a heap object. static const void* GetAllocCaller(void* ptr); friend void VerifyHeapProfileTableStackGet(); // This gets to execute before constructors for all global objects static void BeforeConstructorsLocked(); friend void HeapLeakChecker_BeforeConstructors(); // This gets to execute after destructors for all global objects friend void HeapLeakChecker_AfterDestructors(); // Full starting of recommended whole-program checking. friend void HeapLeakChecker_InternalInitStart(); // Runs REGISTER_HEAPCHECK_CLEANUP cleanups and potentially // calls DoMainHeapCheck friend void HeapLeakChecker_RunHeapCleanups(); // ----------------------------------------------------------------------- // // Member data. class SpinLock* lock_; // to make HeapLeakChecker objects thread-safe const char* name_; // our remembered name (we own it) // NULL means this leak checker is a noop // Snapshot taken when the checker was created. May be NULL // for the global heap checker object. We use void* instead of // HeapProfileTable::Snapshot* to avoid including heap-profile-table.h. void* start_snapshot_; bool has_checked_; // if we have done the leak check, so these are ready: ssize_t inuse_bytes_increase_; // bytes-in-use increase for this checker ssize_t inuse_allocs_increase_; // allocations-in-use increase // for this checker bool keep_profiles_; // iff we should keep the heap profiles we've made // ----------------------------------------------------------------------- // // Disallow "evil" constructors. HeapLeakChecker(const HeapLeakChecker&); void operator=(const HeapLeakChecker&); }; // Holds a pointer that will not be traversed by the heap checker. // Contrast with HeapLeakChecker::IgnoreObject(o), in which o and // all objects reachable from o are ignored by the heap checker. template class HiddenPointer { public: explicit HiddenPointer(T* t) : masked_t_(reinterpret_cast(t) ^ kHideMask) { } // Returns unhidden pointer. Be careful where you save the result. T* get() const { return reinterpret_cast(masked_t_ ^ kHideMask); } private: // Arbitrary value, but not such that xor'ing with it is likely // to map one valid pointer to another valid pointer: static const uintptr_t kHideMask = static_cast(0xF03A5F7BF03A5F7Bll); uintptr_t masked_t_; }; // A class that exists solely to run its destructor. This class should not be // used directly, but instead by the REGISTER_HEAPCHECK_CLEANUP macro below. class PERFTOOLS_DLL_DECL HeapCleaner { public: typedef void (*void_function)(void); HeapCleaner(void_function f); static void RunHeapCleanups(); private: static std::vector* heap_cleanups_; }; // A macro to declare module heap check cleanup tasks // (they run only if we are doing heap leak checking.) // 'body' should be the cleanup code to run. 'name' doesn't matter, // but must be unique amongst all REGISTER_HEAPCHECK_CLEANUP calls. #define REGISTER_HEAPCHECK_CLEANUP(name, body) \ namespace { \ void heapcheck_cleanup_##name() { body; } \ static HeapCleaner heapcheck_cleaner_##name(&heapcheck_cleanup_##name); \ } #endif // BASE_HEAP_CHECKER_H_ gperftools-2.4/src/gperftools/profiler.h0000644000000000000000000001415012440704174015404 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2005, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat * * Module for CPU profiling based on periodic pc-sampling. * * For full(er) information, see doc/cpuprofile.html * * This module is linked into your program with * no slowdown caused by this unless you activate the profiler * using one of the following methods: * * 1. Before starting the program, set the environment variable * "CPUPROFILE" to be the name of the file to which the profile * data should be written. * * 2. Programmatically, start and stop the profiler using the * routines "ProfilerStart(filename)" and "ProfilerStop()". * * * (Note: if using linux 2.4 or earlier, only the main thread may be * profiled.) * * Use pprof to view the resulting profile output. * % pprof * % pprof --gv * * These functions are thread-safe. */ #ifndef BASE_PROFILER_H_ #define BASE_PROFILER_H_ #include /* For time_t */ /* Annoying stuff for windows; makes sure clients can import these functions */ #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif /* All this code should be usable from within C apps. */ #ifdef __cplusplus extern "C" { #endif /* Profiler options, for use with ProfilerStartWithOptions. To use: * * struct ProfilerOptions options; * memset(&options, 0, sizeof options); * * then fill in fields as needed. * * This structure is intended to be usable from C code, so no constructor * is provided to initialize it. (Use memset as described above). */ struct ProfilerOptions { /* Filter function and argument. * * If filter_in_thread is not NULL, when a profiling tick is delivered * the profiler will call: * * (*filter_in_thread)(filter_in_thread_arg) * * If it returns nonzero, the sample will be included in the profile. * Note that filter_in_thread runs in a signal handler, so must be * async-signal-safe. * * A typical use would be to set up filter results for each thread * in the system before starting the profiler, then to make * filter_in_thread be a very simple function which retrieves those * results in an async-signal-safe way. Retrieval could be done * using thread-specific data, or using a shared data structure that * supports async-signal-safe lookups. */ int (*filter_in_thread)(void *arg); void *filter_in_thread_arg; }; /* Start profiling and write profile info into fname, discarding any * existing profiling data in that file. * * This is equivalent to calling ProfilerStartWithOptions(fname, NULL). */ PERFTOOLS_DLL_DECL int ProfilerStart(const char* fname); /* Start profiling and write profile into fname, discarding any * existing profiling data in that file. * * The profiler is configured using the options given by 'options'. * Options which are not specified are given default values. * * 'options' may be NULL, in which case all are given default values. * * Returns nonzero if profiling was started successfully, or zero else. */ PERFTOOLS_DLL_DECL int ProfilerStartWithOptions( const char *fname, const struct ProfilerOptions *options); /* Stop profiling. Can be started again with ProfilerStart(), but * the currently accumulated profiling data will be cleared. */ PERFTOOLS_DLL_DECL void ProfilerStop(); /* Flush any currently buffered profiling state to the profile file. * Has no effect if the profiler has not been started. */ PERFTOOLS_DLL_DECL void ProfilerFlush(); /* DEPRECATED: these functions were used to enable/disable profiling * in the current thread, but no longer do anything. */ PERFTOOLS_DLL_DECL void ProfilerEnable(); PERFTOOLS_DLL_DECL void ProfilerDisable(); /* Returns nonzero if profile is currently enabled, zero if it's not. */ PERFTOOLS_DLL_DECL int ProfilingIsEnabledForAllThreads(); /* Routine for registering new threads with the profiler. */ PERFTOOLS_DLL_DECL void ProfilerRegisterThread(); /* Stores state about profiler's current status into "*state". */ struct ProfilerState { int enabled; /* Is profiling currently enabled? */ time_t start_time; /* If enabled, when was profiling started? */ char profile_name[1024]; /* Name of profile file being written, or '\0' */ int samples_gathered; /* Number of samples gathered so far (or 0) */ }; PERFTOOLS_DLL_DECL void ProfilerGetCurrentState(struct ProfilerState* state); #ifdef __cplusplus } // extern "C" #endif #endif /* BASE_PROFILER_H_ */ gperftools-2.4/src/solaris/0000755000000000000000000000000012454304761012763 500000000000000gperftools-2.4/src/solaris/libstdc++.la0000644000000000000000000000275512371745612015006 00000000000000# libstdc++.la - a libtool library file # Generated by ltmain.sh - GNU libtool 1.4a-GCC3.0 (1.641.2.256 2001/05/28 20:09:07 with GCC-local changes) # # Please DO NOT delete this file! # It is necessary for linking the library. # --- # NOTE: This file lives in /usr/sfw/lib on Solaris 10. Unfortunately, # due to an apparent bug in the Solaris 10 6/06 release, # /usr/sfw/lib/libstdc++.la is empty. Below is the correct content, # according to # http://forum.java.sun.com/thread.jspa?threadID=5073150 # By passing LDFLAGS='-Lsrc/solaris' to configure, make will pick up # this copy of the file rather than the empty copy in /usr/sfw/lib. # # Also see # http://www.technicalarticles.org/index.php/Compiling_MySQL_5.0_on_Solaris_10 # # Note: this is for 32-bit systems. If you have a 64-bit system, # uncomment the appropriate dependency_libs line below. # ---- # The name that we can dlopen(3). dlname='libstdc++.so.6' # Names of this library. library_names='libstdc++.so.6.0.3 libstdc++.so.6 libstdc++.so' # The name of the static archive. old_library='libstdc++.a' # Libraries that this one depends upon. # 32-bit version: dependency_libs='-lc -lm -L/usr/sfw/lib -lgcc_s' # 64-bit version: #dependency_libs='-L/lib/64 -lc -lm -L/usr/sfw/lib/64 -lgcc_s' # Version information for libstdc++. current=6 age=0 revision=3 # Is this an already installed library? installed=yes # Files to dlopen/dlpreopen dlopen='' dlpreopen='' # Directory that this library needs to be installed in: libdir='/usr/sfw/lib' gperftools-2.4/src/tests/0000755000000000000000000000000012454304761012451 500000000000000gperftools-2.4/src/tests/addressmap_unittest.cc0000644000000000000000000001350112440704174016757 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include // for rand() #include #include #include #include #include "addressmap-inl.h" #include "base/logging.h" #include "base/commandlineflags.h" DEFINE_int32(iters, 20, "Number of test iterations"); DEFINE_int32(N, 100000, "Number of elements to test per iteration"); using std::pair; using std::make_pair; using std::vector; using std::set; using std::random_shuffle; struct UniformRandomNumberGenerator { size_t Uniform(size_t max_size) { if (max_size == 0) return 0; return rand() % max_size; // not a great random-number fn, but portable } }; static UniformRandomNumberGenerator rnd; // pair of associated value and object size typedef pair ValueT; struct PtrAndSize { char* ptr; size_t size; PtrAndSize(char* p, size_t s) : ptr(p), size(s) {} }; size_t SizeFunc(const ValueT& v) { return v.second; } static void SetCheckCallback(const void* ptr, ValueT* val, set >* check_set) { check_set->insert(make_pair(ptr, val->first)); } int main(int argc, char** argv) { // Get a bunch of pointers const int N = FLAGS_N; static const int kMaxRealSize = 49; // 100Mb to stress not finding previous object (AddressMap's cluster is 1Mb): static const size_t kMaxSize = 100*1000*1000; vector ptrs_and_sizes; for (int i = 0; i < N; ++i) { size_t s = rnd.Uniform(kMaxRealSize); ptrs_and_sizes.push_back(PtrAndSize(new char[s], s)); } for (int x = 0; x < FLAGS_iters; ++x) { RAW_LOG(INFO, "Iteration %d/%d...\n", x, FLAGS_iters); // Permute pointers to get rid of allocation order issues random_shuffle(ptrs_and_sizes.begin(), ptrs_and_sizes.end()); AddressMap map(malloc, free); const ValueT* result; const void* res_p; // Insert a bunch of entries for (int i = 0; i < N; ++i) { char* p = ptrs_and_sizes[i].ptr; CHECK(!map.Find(p)); int offs = rnd.Uniform(ptrs_and_sizes[i].size); CHECK(!map.FindInside(&SizeFunc, kMaxSize, p + offs, &res_p)); map.Insert(p, make_pair(i, ptrs_and_sizes[i].size)); CHECK(result = map.Find(p)); CHECK_EQ(result->first, i); CHECK(result = map.FindInside(&SizeFunc, kMaxRealSize, p + offs, &res_p)); CHECK_EQ(res_p, p); CHECK_EQ(result->first, i); map.Insert(p, make_pair(i + N, ptrs_and_sizes[i].size)); CHECK(result = map.Find(p)); CHECK_EQ(result->first, i + N); } // Delete the even entries for (int i = 0; i < N; i += 2) { void* p = ptrs_and_sizes[i].ptr; ValueT removed; CHECK(map.FindAndRemove(p, &removed)); CHECK_EQ(removed.first, i + N); } // Lookup the odd entries and adjust them for (int i = 1; i < N; i += 2) { char* p = ptrs_and_sizes[i].ptr; CHECK(result = map.Find(p)); CHECK_EQ(result->first, i + N); int offs = rnd.Uniform(ptrs_and_sizes[i].size); CHECK(result = map.FindInside(&SizeFunc, kMaxRealSize, p + offs, &res_p)); CHECK_EQ(res_p, p); CHECK_EQ(result->first, i + N); map.Insert(p, make_pair(i + 2*N, ptrs_and_sizes[i].size)); CHECK(result = map.Find(p)); CHECK_EQ(result->first, i + 2*N); } // Insert even entries back for (int i = 0; i < N; i += 2) { char* p = ptrs_and_sizes[i].ptr; int offs = rnd.Uniform(ptrs_and_sizes[i].size); CHECK(!map.FindInside(&SizeFunc, kMaxSize, p + offs, &res_p)); map.Insert(p, make_pair(i + 2*N, ptrs_and_sizes[i].size)); CHECK(result = map.Find(p)); CHECK_EQ(result->first, i + 2*N); CHECK(result = map.FindInside(&SizeFunc, kMaxRealSize, p + offs, &res_p)); CHECK_EQ(res_p, p); CHECK_EQ(result->first, i + 2*N); } // Check all entries set > check_set; map.Iterate(SetCheckCallback, &check_set); CHECK_EQ(check_set.size(), N); for (int i = 0; i < N; ++i) { void* p = ptrs_and_sizes[i].ptr; check_set.erase(make_pair(p, i + 2*N)); CHECK(result = map.Find(p)); CHECK_EQ(result->first, i + 2*N); } CHECK_EQ(check_set.size(), 0); } for (int i = 0; i < N; ++i) { delete[] ptrs_and_sizes[i].ptr; } printf("PASS\n"); return 0; } gperftools-2.4/src/tests/atomicops_unittest.cc0000644000000000000000000001277612440704174016647 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat */ #include #include "base/logging.h" #include "base/atomicops.h" #define GG_ULONGLONG(x) static_cast(x) #define NUM_BITS(T) (sizeof(T) * 8) template static void TestCompareAndSwap(AtomicType (*compare_and_swap_func) (volatile AtomicType*, AtomicType, AtomicType)) { AtomicType value = 0; AtomicType prev = (*compare_and_swap_func)(&value, 0, 1); ASSERT_EQ(1, value); ASSERT_EQ(0, prev); // Use test value that has non-zero bits in both halves, more for testing // 64-bit implementation on 32-bit platforms. const AtomicType k_test_val = (GG_ULONGLONG(1) << (NUM_BITS(AtomicType) - 2)) + 11; value = k_test_val; prev = (*compare_and_swap_func)(&value, 0, 5); ASSERT_EQ(k_test_val, value); ASSERT_EQ(k_test_val, prev); value = k_test_val; prev = (*compare_and_swap_func)(&value, k_test_val, 5); ASSERT_EQ(5, value); ASSERT_EQ(k_test_val, prev); } template static void TestAtomicExchange(AtomicType (*atomic_exchange_func) (volatile AtomicType*, AtomicType)) { AtomicType value = 0; AtomicType new_value = (*atomic_exchange_func)(&value, 1); ASSERT_EQ(1, value); ASSERT_EQ(0, new_value); // Use test value that has non-zero bits in both halves, more for testing // 64-bit implementation on 32-bit platforms. const AtomicType k_test_val = (GG_ULONGLONG(1) << (NUM_BITS(AtomicType) - 2)) + 11; value = k_test_val; new_value = (*atomic_exchange_func)(&value, k_test_val); ASSERT_EQ(k_test_val, value); ASSERT_EQ(k_test_val, new_value); value = k_test_val; new_value = (*atomic_exchange_func)(&value, 5); ASSERT_EQ(5, value); ASSERT_EQ(k_test_val, new_value); } // This is a simple sanity check that values are correct. Not testing // atomicity template static void TestStore() { const AtomicType kVal1 = static_cast(0xa5a5a5a5a5a5a5a5LL); const AtomicType kVal2 = static_cast(-1); AtomicType value; base::subtle::NoBarrier_Store(&value, kVal1); ASSERT_EQ(kVal1, value); base::subtle::NoBarrier_Store(&value, kVal2); ASSERT_EQ(kVal2, value); base::subtle::Acquire_Store(&value, kVal1); ASSERT_EQ(kVal1, value); base::subtle::Acquire_Store(&value, kVal2); ASSERT_EQ(kVal2, value); base::subtle::Release_Store(&value, kVal1); ASSERT_EQ(kVal1, value); base::subtle::Release_Store(&value, kVal2); ASSERT_EQ(kVal2, value); } // This is a simple sanity check that values are correct. Not testing // atomicity template static void TestLoad() { const AtomicType kVal1 = static_cast(0xa5a5a5a5a5a5a5a5LL); const AtomicType kVal2 = static_cast(-1); AtomicType value; value = kVal1; ASSERT_EQ(kVal1, base::subtle::NoBarrier_Load(&value)); value = kVal2; ASSERT_EQ(kVal2, base::subtle::NoBarrier_Load(&value)); value = kVal1; ASSERT_EQ(kVal1, base::subtle::Acquire_Load(&value)); value = kVal2; ASSERT_EQ(kVal2, base::subtle::Acquire_Load(&value)); value = kVal1; ASSERT_EQ(kVal1, base::subtle::Release_Load(&value)); value = kVal2; ASSERT_EQ(kVal2, base::subtle::Release_Load(&value)); } template static void TestAtomicOps() { TestCompareAndSwap(base::subtle::NoBarrier_CompareAndSwap); TestCompareAndSwap(base::subtle::Acquire_CompareAndSwap); TestCompareAndSwap(base::subtle::Release_CompareAndSwap); TestAtomicExchange(base::subtle::NoBarrier_AtomicExchange); TestAtomicExchange(base::subtle::Acquire_AtomicExchange); TestAtomicExchange(base::subtle::Release_AtomicExchange); TestStore(); TestLoad(); } int main(int argc, char** argv) { TestAtomicOps(); TestAtomicOps(); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/current_allocated_bytes_test.cc0000644000000000000000000000537512440704174020646 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // // Author: Craig Silverstein // This tests the accounting done by tcmalloc. When we allocate and // free a small buffer, the number of bytes used by the application // before the alloc+free should match the number of bytes used after. // However, the internal data structures used by tcmalloc will be // quite different -- new spans will have been allocated, etc. This // is, thus, a simple test that we account properly for the internal // data structures, so that we report the actual application-used // bytes properly. #include "config_for_unittests.h" #include #include #include #include "base/logging.h" const char kCurrent[] = "generic.current_allocated_bytes"; int main() { // We don't do accounting right when using debugallocation.cc, so // turn off the test then. TODO(csilvers): get this working too. #ifdef NDEBUG size_t before_bytes, after_bytes; MallocExtension::instance()->GetNumericProperty(kCurrent, &before_bytes); free(malloc(200)); MallocExtension::instance()->GetNumericProperty(kCurrent, &after_bytes); CHECK_EQ(before_bytes, after_bytes); #endif printf("PASS\n"); return 0; } gperftools-2.4/src/tests/debugallocation_test.cc0000644000000000000000000002721012440704174017072 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Fred Akalin #include #include #include // for memcmp #include #include "gperftools/malloc_extension.h" #include "gperftools/tcmalloc.h" #include "base/logging.h" using std::vector; vector g_testlist; // the tests to run #define TEST(a, b) \ struct Test_##a##_##b { \ Test_##a##_##b() { g_testlist.push_back(&Run); } \ static void Run(); \ }; \ static Test_##a##_##b g_test_##a##_##b; \ void Test_##a##_##b::Run() static int RUN_ALL_TESTS() { vector::const_iterator it; for (it = g_testlist.begin(); it != g_testlist.end(); ++it) { (*it)(); // The test will error-exit if there's a problem. } fprintf(stderr, "\nPassed %d tests\n\nPASS\n", static_cast(g_testlist.size())); return 0; } // The death tests are meant to be run from a shell-script driver, which // passes in an integer saying which death test to run. We store that // test-to-run here, and in the macro use a counter to see when we get // to that test, so we can run it. static int test_to_run = 0; // set in main() based on argv static int test_counter = 0; // incremented every time the macro is called #define IF_DEBUG_EXPECT_DEATH(statement, regex) do { \ if (test_counter++ == test_to_run) { \ fprintf(stderr, "Expected regex:%s\n", regex); \ statement; \ } \ } while (false) // This flag won't be compiled in in opt mode. DECLARE_int32(max_free_queue_size); // Test match as well as mismatch rules. But do not test on OS X; on // OS X the OS converts new/new[] to malloc before it gets to us, so // we are unable to catch these mismatch errors. #ifndef __APPLE__ TEST(DebugAllocationTest, DeallocMismatch) { // malloc can be matched only by free // new can be matched only by delete and delete(nothrow) // new[] can be matched only by delete[] and delete[](nothrow) // new(nothrow) can be matched only by delete and delete(nothrow) // new(nothrow)[] can be matched only by delete[] and delete[](nothrow) // Allocate with malloc. { int* x = static_cast(malloc(sizeof(*x))); IF_DEBUG_EXPECT_DEATH(delete x, "mismatch.*being dealloc.*delete"); IF_DEBUG_EXPECT_DEATH(delete [] x, "mismatch.*being dealloc.*delete *[[]"); // Should work fine. free(x); } // Allocate with new. { int* x = new int; int* y = new int; IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free"); IF_DEBUG_EXPECT_DEATH(delete [] x, "mismatch.*being dealloc.*delete *[[]"); delete x; ::operator delete(y, std::nothrow); } // Allocate with new[]. { int* x = new int[1]; int* y = new int[1]; IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free"); IF_DEBUG_EXPECT_DEATH(delete x, "mismatch.*being dealloc.*delete"); delete [] x; ::operator delete[](y, std::nothrow); } // Allocate with new(nothrow). { int* x = new(std::nothrow) int; int* y = new(std::nothrow) int; IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free"); IF_DEBUG_EXPECT_DEATH(delete [] x, "mismatch.*being dealloc.*delete *[[]"); delete x; ::operator delete(y, std::nothrow); } // Allocate with new(nothrow)[]. { int* x = new(std::nothrow) int[1]; int* y = new(std::nothrow) int[1]; IF_DEBUG_EXPECT_DEATH(free(x), "mismatch.*being dealloc.*free"); IF_DEBUG_EXPECT_DEATH(delete x, "mismatch.*being dealloc.*delete"); delete [] x; ::operator delete[](y, std::nothrow); } } #endif // #ifdef OS_MACOSX TEST(DebugAllocationTest, DoubleFree) { int* pint = new int; delete pint; IF_DEBUG_EXPECT_DEATH(delete pint, "has been already deallocated"); } TEST(DebugAllocationTest, StompBefore) { int* pint = new int; #ifndef NDEBUG // don't stomp memory if we're not in a position to detect it pint[-1] = 5; IF_DEBUG_EXPECT_DEATH(delete pint, "a word before object"); #endif } TEST(DebugAllocationTest, StompAfter) { int* pint = new int; #ifndef NDEBUG // don't stomp memory if we're not in a position to detect it pint[1] = 5; IF_DEBUG_EXPECT_DEATH(delete pint, "a word after object"); #endif } TEST(DebugAllocationTest, FreeQueueTest) { // Verify that the allocator doesn't return blocks that were recently freed. int* x = new int; int* old_x = x; delete x; x = new int; #if 1 // This check should not be read as a universal guarantee of behavior. If // other threads are executing, it would be theoretically possible for this // check to fail despite the efforts of debugallocation.cc to the contrary. // It should always hold under the controlled conditions of this unittest, // however. EXPECT_NE(x, old_x); // Allocator shouldn't return recently freed blocks #else // The below check passes, but since it isn't *required* to pass, I've left // it commented out. // EXPECT_EQ(x, old_x); #endif old_x = NULL; // avoid breaking opt build with an unused variable warning. delete x; } TEST(DebugAllocationTest, DanglingPointerWriteTest) { // This test can only be run if debugging. // // If not debugging, the 'new' following the dangling write might not be // safe. When debugging, we expect the (trashed) deleted block to be on the // list of recently-freed blocks, so the following 'new' will be safe. #if 1 int* x = new int; delete x; int poisoned_x_value = *x; *x = 1; // a dangling write. char* s = new char[FLAGS_max_free_queue_size]; // When we delete s, we push the storage that was previously allocated to x // off the end of the free queue. At that point, the write to that memory // will be detected. IF_DEBUG_EXPECT_DEATH(delete [] s, "Memory was written to after being freed."); // restore the poisoned value of x so that we can delete s without causing a // crash. *x = poisoned_x_value; delete [] s; #endif } TEST(DebugAllocationTest, DanglingWriteAtExitTest) { int *x = new int; delete x; int old_x_value = *x; *x = 1; // verify that dangling writes are caught at program termination if the // corrupted block never got pushed off of the end of the free queue. IF_DEBUG_EXPECT_DEATH(exit(0), "Memory was written to after being freed."); *x = old_x_value; // restore x so that the test can exit successfully. } TEST(DebugAllocationTest, StackTraceWithDanglingWriteAtExitTest) { int *x = new int; delete x; int old_x_value = *x; *x = 1; // verify that we also get a stack trace when we have a dangling write. // The " @ " is part of the stack trace output. IF_DEBUG_EXPECT_DEATH(exit(0), " @ .*main"); *x = old_x_value; // restore x so that the test can exit successfully. } static size_t CurrentlyAllocatedBytes() { size_t value; CHECK(MallocExtension::instance()->GetNumericProperty( "generic.current_allocated_bytes", &value)); return value; } TEST(DebugAllocationTest, CurrentlyAllocated) { // Clear the free queue #if 1 FLAGS_max_free_queue_size = 0; // Force a round-trip through the queue management code so that the // new size is seen and the queue of recently-freed blocks is flushed. free(malloc(1)); FLAGS_max_free_queue_size = 1048576; #endif // Free something and check that it disappears from allocated bytes // immediately. char* p = new char[1000]; size_t after_malloc = CurrentlyAllocatedBytes(); delete[] p; size_t after_free = CurrentlyAllocatedBytes(); EXPECT_LE(after_free, after_malloc - 1000); } TEST(DebugAllocationTest, GetAllocatedSizeTest) { #if 1 // When debug_allocation is in effect, GetAllocatedSize should return // exactly requested size, since debug_allocation doesn't allow users // to write more than that. for (int i = 0; i < 10; ++i) { void *p = malloc(i); EXPECT_EQ(i, MallocExtension::instance()->GetAllocatedSize(p)); free(p); } #endif void* a = malloc(1000); EXPECT_GE(MallocExtension::instance()->GetAllocatedSize(a), 1000); // This is just a sanity check. If we allocated too much, alloc is broken EXPECT_LE(MallocExtension::instance()->GetAllocatedSize(a), 5000); EXPECT_GE(MallocExtension::instance()->GetEstimatedAllocatedSize(1000), 1000); free(a); } TEST(DebugAllocationTest, HugeAlloc) { // This must not be a const variable so it doesn't form an // integral-constant-expression which can be *statically* rejected by the // compiler as too large for the allocation. size_t kTooBig = ~static_cast(0); void* a = NULL; #ifndef NDEBUG a = malloc(kTooBig); EXPECT_EQ(NULL, a); // kAlsoTooBig is small enough not to get caught by debugallocation's check, // but will still fall through to tcmalloc's check. This must also be // a non-const variable. See kTooBig for more details. size_t kAlsoTooBig = kTooBig - 1024; a = malloc(kAlsoTooBig); EXPECT_EQ(NULL, a); #endif } // based on test program contributed by mikesart@gmail.com aka // mikesart@valvesoftware.com. See issue-464. TEST(DebugAllocationTest, ReallocAfterMemalign) { char stuff[50]; memset(stuff, 0x11, sizeof(stuff)); void *p = tc_memalign(16, sizeof(stuff)); EXPECT_NE(p, NULL); memcpy(stuff, p, sizeof(stuff)); p = realloc(p, sizeof(stuff) + 10); EXPECT_NE(p, NULL); int rv = memcmp(stuff, p, sizeof(stuff)); EXPECT_EQ(rv, 0); } int main(int argc, char** argv) { // If you run without args, we run the non-death parts of the test. // Otherwise, argv[1] should be a number saying which death-test // to run. We will output a regexp we expect the death-message // to include, and then run the given death test (which hopefully // will produce that error message). If argv[1] > the number of // death tests, we will run only the non-death parts. One way to // tell when you are done with all tests is when no 'expected // regexp' message is printed for a given argv[1]. if (argc < 2) { test_to_run = -1; // will never match } else { test_to_run = atoi(argv[1]); } return RUN_ALL_TESTS(); } gperftools-2.4/src/tests/debugallocation_test.sh0000755000000000000000000000663312372001603017117 00000000000000#!/bin/sh # Copyright (c) 2009, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # --- # Author: Craig Silverstein BINDIR="${BINDIR:-.}" if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then echo "USAGE: $0 [unittest dir]" echo " By default, unittest_dir=$BINDIR" exit 1 fi DEBUGALLOCATION_TEST="${1:-$BINDIR/debugallocation_test}" num_failures=0 # Run the i-th death test and make sure the test has the expected # regexp. We can depend on the first line of the output being # Expected regex: # Evaluates to "done" if we are not actually a death-test (so $1 is # too big a number, and we can stop). Evaluates to "" otherwise. # Increments num_failures if the death test does not succeed. OneDeathTest() { "$DEBUGALLOCATION_TEST" "$1" 2>&1 | { regex_line='dummy' # Normally the regex_line is the first line of output, but not # always (if tcmalloc itself does any logging to stderr). while test -n "$regex_line"; do read regex_line regex=`expr "$regex_line" : "Expected regex:\(.*\)"` test -n "$regex" && break # found the regex line done test -z "$regex" && echo "done" || grep "$regex" 2>&1 } } death_test_num=0 # which death test to run while :; do # same as 'while true', but more portable echo -n "Running death test $death_test_num..." output="`OneDeathTest $death_test_num`" case $output in # Empty string means grep didn't find anything. "") echo "FAILED"; num_failures=`expr $num_failures + 1`;; "done"*) echo "done with death tests"; break;; # Any other string means grep found something, like it ought to. *) echo "OK";; esac death_test_num=`expr $death_test_num + 1` done # Test the non-death parts of the test too echo -n "Running non-death tests..." if "$DEBUGALLOCATION_TEST"; then echo "OK" else echo "FAILED" num_failures=`expr $num_failures + 1` fi if [ "$num_failures" = 0 ]; then echo "PASS" else echo "Failed with $num_failures failures" fi exit $num_failures gperftools-2.4/src/tests/frag_unittest.cc0000644000000000000000000001132412440704174015554 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2003, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Test speed of handling fragmented heap #include "config_for_unittests.h" #include #include #ifdef HAVE_SYS_RESOURCE_H #include // for struct timeval #include // for getrusage #endif #ifdef _WIN32 #include // for GetTickCount() #endif #include #include "base/logging.h" #include "common.h" #include using std::vector; int main(int argc, char** argv) { // Make kAllocSize one page larger than the maximum small object size. static const int kAllocSize = kMaxSize + kPageSize; // Allocate 400MB in total. static const int kTotalAlloc = 400 << 20; static const int kAllocIterations = kTotalAlloc / kAllocSize; // Allocate lots of objects vector saved(kAllocIterations); for (int i = 0; i < kAllocIterations; i++) { saved[i] = new char[kAllocSize]; } // Check the current "slack". size_t slack_before; MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes", &slack_before); // Free alternating ones to fragment heap size_t free_bytes = 0; for (int i = 0; i < saved.size(); i += 2) { delete[] saved[i]; free_bytes += kAllocSize; } // Check that slack delta is within 10% of expected. size_t slack_after; MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes", &slack_after); CHECK_GE(slack_after, slack_before); size_t slack = slack_after - slack_before; CHECK_GT(double(slack), 0.9*free_bytes); CHECK_LT(double(slack), 1.1*free_bytes); // Dump malloc stats static const int kBufSize = 1<<20; char* buffer = new char[kBufSize]; MallocExtension::instance()->GetStats(buffer, kBufSize); VLOG(1, "%s", buffer); delete[] buffer; // Now do timing tests for (int i = 0; i < 5; i++) { static const int kIterations = 100000; #ifdef HAVE_SYS_RESOURCE_H struct rusage r; getrusage(RUSAGE_SELF, &r); // figure out user-time spent on this struct timeval tv_start = r.ru_utime; #elif defined(_WIN32) long long int tv_start = GetTickCount(); #else # error No way to calculate time on your system #endif for (int i = 0; i < kIterations; i++) { size_t s; MallocExtension::instance()->GetNumericProperty("tcmalloc.slack_bytes", &s); } #ifdef HAVE_SYS_RESOURCE_H getrusage(RUSAGE_SELF, &r); struct timeval tv_end = r.ru_utime; int64 sumsec = static_cast(tv_end.tv_sec) - tv_start.tv_sec; int64 sumusec = static_cast(tv_end.tv_usec) - tv_start.tv_usec; #elif defined(_WIN32) long long int tv_end = GetTickCount(); int64 sumsec = (tv_end - tv_start) / 1000; // Resolution in windows is only to the millisecond, alas int64 sumusec = ((tv_end - tv_start) % 1000) * 1000; #else # error No way to calculate time on your system #endif fprintf(stderr, "getproperty: %6.1f ns/call\n", (sumsec * 1e9 + sumusec * 1e3) / kIterations); } printf("PASS\n"); return 0; } gperftools-2.4/src/tests/getpc_test.cc0000644000000000000000000001123212440704174015035 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // This verifies that GetPC works correctly. This test uses a minimum // of Google infrastructure, to make it very easy to port to various // O/Ses and CPUs and test that GetPC is working. #include "config.h" #include "getpc.h" // should be first to get the _GNU_SOURCE dfn #include #include #include #include // for setitimer // Needs to be volatile so compiler doesn't try to optimize it away static volatile void* getpc_retval = NULL; // what GetPC returns static volatile bool prof_handler_called = false; static void prof_handler(int sig, siginfo_t*, void* signal_ucontext) { if (!prof_handler_called) getpc_retval = GetPC(*reinterpret_cast(signal_ucontext)); prof_handler_called = true; // only store the retval once } static void RoutineCallingTheSignal() { struct sigaction sa; sa.sa_sigaction = prof_handler; sa.sa_flags = SA_RESTART | SA_SIGINFO; sigemptyset(&sa.sa_mask); if (sigaction(SIGPROF, &sa, NULL) != 0) { perror("sigaction"); exit(1); } struct itimerval timer; timer.it_interval.tv_sec = 0; timer.it_interval.tv_usec = 1000; timer.it_value = timer.it_interval; setitimer(ITIMER_PROF, &timer, 0); // Now we need to do some work for a while, that doesn't call any // other functions, so we can be guaranteed that when the SIGPROF // fires, we're the routine executing. int r = 0; for (int i = 0; !prof_handler_called; ++i) { for (int j = 0; j < i; j++) { r ^= i; r <<= 1; r ^= j; r >>= 1; } } // Now make sure the above loop doesn't get optimized out srand(r); } // This is an upper bound of how many bytes the instructions for // RoutineCallingTheSignal might be. There's probably a more // principled way to do this, but I don't know how portable it would be. // (The function is 372 bytes when compiled with -g on Mac OS X 10.4. // I can imagine it would be even bigger in 64-bit architectures.) const int kRoutineSize = 512 * sizeof(void*)/4; // allow 1024 for 64-bit int main(int argc, char** argv) { RoutineCallingTheSignal(); // Annoyingly, C++ disallows casting pointer-to-function to // pointer-to-object, so we use a C-style cast instead. char* expected = (char*)&RoutineCallingTheSignal; char* actual = (char*)getpc_retval; // For ia64, ppc64v1, and parisc64, the function pointer is actually // a struct. For instance, ia64's dl-fptr.h: // struct fdesc { /* An FDESC is a function descriptor. */ // ElfW(Addr) ip; /* code entry point */ // ElfW(Addr) gp; /* global pointer */ // }; // We want the code entry point. // NOTE: ppc64 ELFv2 (Little Endian) does not have function pointers #if defined(__ia64) || \ (defined(__powerpc64__) && _CALL_ELF != 2) expected = ((char**)expected)[0]; // this is "ip" #endif if (actual < expected || actual > expected + kRoutineSize) { printf("Test FAILED: actual PC: %p, expected PC: %p\n", actual, expected); return 1; } else { printf("PASS\n"); return 0; } } gperftools-2.4/src/tests/heap-checker-death_unittest.sh0000755000000000000000000001477612440704174020305 00000000000000#!/bin/sh # Copyright (c) 2005, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Author: Maxim Lifantsev # # Run the heap checker unittest in a mode where it is supposed to crash and # return an error if it doesn't. # We expect BINDIR to be set in the environment. # If not, we set it to some reasonable value. BINDIR="${BINDIR:-.}" if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then echo "USAGE: $0 [unittest dir]" echo " By default, unittest_dir=$BINDIR" exit 1 fi EXE="${1:-$BINDIR/heap-checker_unittest}" TMPDIR="/tmp/heap_check_death_info" ALARM() { # You need perl to run pprof, so I assume it's installed perl -e ' $timeout=$ARGV[0]; shift; $retval = 255; # the default retval, for the case where we timed out eval { # need to run in an eval-block to trigger during system() local $SIG{ALRM} = sub { die "alarm\n" }; # \n is required! alarm $timeout; $retval = system(@ARGV); # Make retval bash-style: exit status, or 128+n if terminated by signal n $retval = ($retval & 127) ? (128 + $retval) : ($retval >> 8); alarm 0; }; exit $retval; # return system()-retval, or 255 if system() never returned ' "$@" } # $1: timeout for alarm; # $2: regexp of expected exit code(s); # $3: regexp to match a line in the output; # $4: regexp to not match a line in the output; # $5+ args to pass to $EXE Test() { # Note: make sure these varnames don't conflict with any vars outside Test()! timeout="$1" shift expected_ec="$1" shift expected_regexp="$1" shift unexpected_regexp="$1" shift echo -n "Testing $EXE with $@ ... " output="$TMPDIR/output" ALARM $timeout env "$@" $EXE > "$output" 2>&1 actual_ec=$? ec_ok=`expr "$actual_ec" : "$expected_ec$" >/dev/null || echo false` matches_ok=`test -z "$expected_regexp" || \ grep "$expected_regexp" "$output" >/dev/null 2>&1 || echo false` negmatches_ok=`test -z "$unexpected_regexp" || \ ! grep "$unexpected_regexp" "$output" >/dev/null 2>&1 || echo false` if $ec_ok && $matches_ok && $negmatches_ok; then echo "PASS" return 0 # 0: success fi # If we get here, we failed. Now we just need to report why echo "FAIL" if [ $actual_ec -eq 255 ]; then # 255 == SIGTERM due to $ALARM echo "Test was taking unexpectedly long time to run and so we aborted it." echo "Try the test case manually or raise the timeout from $timeout" echo "to distinguish test slowness from a real problem." else $ec_ok || \ echo "Wrong exit code: expected: '$expected_ec'; actual: $actual_ec" $matches_ok || \ echo "Output did not match '$expected_regexp'" $negmatches_ok || \ echo "Output unexpectedly matched '$unexpected_regexp'" fi echo "Output from failed run:" echo "---" cat "$output" echo "---" return 1 # 1: failure } TMPDIR=/tmp/heap_check_death_info rm -rf $TMPDIR || exit 1 mkdir $TMPDIR || exit 2 export HEAPCHECK=strict # default mode # These invocations should pass (0 == PASS): # This tests that turning leak-checker off dynamically works fine Test 120 0 "^PASS$" "" HEAPCHECK="" || exit 1 # This disables threads so we can cause leaks reliably and test finding them Test 120 0 "^PASS$" "" HEAP_CHECKER_TEST_NO_THREADS=1 || exit 2 # Test that --test_cancel_global_check works Test 20 0 "Canceling .* whole-program .* leak check$" "" \ HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_TEST_CANCEL_GLOBAL_CHECK=1 || exit 3 Test 20 0 "Canceling .* whole-program .* leak check$" "" \ HEAP_CHECKER_TEST_TEST_LOOP_LEAK=1 HEAP_CHECKER_TEST_TEST_CANCEL_GLOBAL_CHECK=1 || exit 4 # Test that very early log messages are present and controllable: EARLY_MSG="Starting tracking the heap$" Test 60 0 "$EARLY_MSG" "" \ HEAPCHECK="" HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 \ PERFTOOLS_VERBOSE=10 || exit 5 Test 60 0 "MemoryRegionMap Init$" "" \ HEAPCHECK="" HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 \ PERFTOOLS_VERBOSE=11 || exit 6 Test 60 0 "" "$EARLY_MSG" \ HEAPCHECK="" HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 \ PERFTOOLS_VERBOSE=-11 || exit 7 # These invocations should fail with very high probability, # rather than return 0 or hang (1 == exit(1), 134 == abort(), 139 = SIGSEGV): Test 60 1 "Exiting .* because of .* leaks$" "" \ HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 || exit 8 Test 60 1 "Exiting .* because of .* leaks$" "" \ HEAP_CHECKER_TEST_TEST_LOOP_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 || exit 9 # Test that we produce a reasonable textual leak report. Test 60 1 "MakeALeak" "" \ HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECK_TEST_NO_THREADS=1 \ || exit 10 # Test that very early log messages are present and controllable: Test 60 1 "Starting tracking the heap$" "" \ HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 PERFTOOLS_VERBOSE=10 \ || exit 11 Test 60 1 "" "Starting tracking the heap" \ HEAP_CHECKER_TEST_TEST_LEAK=1 HEAP_CHECKER_TEST_NO_THREADS=1 PERFTOOLS_VERBOSE=-10 \ || exit 12 cd / # so we're not in TMPDIR when we delete it rm -rf $TMPDIR echo "PASS" exit 0 gperftools-2.4/src/tests/heap-checker_unittest.cc0000644000000000000000000013623112440704174017161 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Maxim Lifantsev // // Running: // ./heap-checker_unittest // // If the unittest crashes because it can't find pprof, try: // PPROF_PATH=/usr/local/someplace/bin/pprof ./heap-checker_unittest // // To test that the whole-program heap checker will actually cause a leak, try: // HEAPCHECK_TEST_LEAK= ./heap-checker_unittest // HEAPCHECK_TEST_LOOP_LEAK= ./heap-checker_unittest // // Note: Both of the above commands *should* abort with an error message. // CAVEAT: Do not use vector<> and string on-heap objects in this test, // otherwise the test can sometimes fail for tricky leak checks // when we want some allocated object not to be found live by the heap checker. // This can happen with memory allocators like tcmalloc that can allocate // heap objects back to back without any book-keeping data in between. // What happens is that end-of-storage pointers of a live vector // (or a string depending on the STL implementation used) // can happen to point to that other heap-allocated // object that is not reachable otherwise and that // we don't want to be reachable. // // The implication of this for real leak checking // is just one more chance for the liveness flood to be inexact // (see the comment in our .h file). #include "config_for_unittests.h" #ifdef HAVE_POLL_H #include #endif #if defined HAVE_STDINT_H #include // to get uint16_t (ISO naming madness) #elif defined HAVE_INTTYPES_H #include // another place uint16_t might be defined #endif #include #include #include // errno #ifdef HAVE_UNISTD_H #include // for sleep(), geteuid() #endif #ifdef HAVE_MMAP #include #endif #include // for open(), close() #ifdef HAVE_EXECINFO_H #include // backtrace #endif #ifdef HAVE_GRP_H #include // getgrent, getgrnam #endif #ifdef HAVE_PWD_H #include #endif #include #include // for cout #include // for hex #include #include #include #include #include #include #include "base/commandlineflags.h" #include "base/googleinit.h" #include "base/logging.h" #include "base/commandlineflags.h" #include "base/thread_lister.h" #include #include "memory_region_map.h" #include #include // On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old // form of the name instead. #ifndef MAP_ANONYMOUS # define MAP_ANONYMOUS MAP_ANON #endif using namespace std; // ========================================================================= // // TODO(maxim): write a shell script to test that these indeed crash us // (i.e. we do detect leaks) // Maybe add more such crash tests. DEFINE_bool(test_leak, EnvToBool("HEAP_CHECKER_TEST_TEST_LEAK", false), "If should cause a leak crash"); DEFINE_bool(test_loop_leak, EnvToBool("HEAP_CHECKER_TEST_TEST_LOOP_LEAK", false), "If should cause a looped leak crash"); DEFINE_bool(test_register_leak, EnvToBool("HEAP_CHECKER_TEST_TEST_REGISTER_LEAK", false), "If should cause a leak crash by hiding a pointer " "that is only in a register"); DEFINE_bool(test_cancel_global_check, EnvToBool("HEAP_CHECKER_TEST_TEST_CANCEL_GLOBAL_CHECK", false), "If should test HeapLeakChecker::CancelGlobalCheck " "when --test_leak or --test_loop_leak are given; " "the test should not fail then"); DEFINE_bool(maybe_stripped, EnvToBool("HEAP_CHECKER_TEST_MAYBE_STRIPPED", true), "If we think we can be a stripped binary"); DEFINE_bool(interfering_threads, EnvToBool("HEAP_CHECKER_TEST_INTERFERING_THREADS", true), "If we should use threads trying " "to interfere with leak checking"); DEFINE_bool(hoarding_threads, EnvToBool("HEAP_CHECKER_TEST_HOARDING_THREADS", true), "If threads (usually the manager thread) are known " "to retain some old state in their global buffers, " "so that it's hard to force leaks when threads are around"); // TODO(maxim): Chage the default to false // when the standard environment used NTPL threads: // they do not seem to have this problem. DEFINE_bool(no_threads, EnvToBool("HEAP_CHECKER_TEST_NO_THREADS", false), "If we should not use any threads"); // This is used so we can make can_create_leaks_reliably true // for any pthread implementation and test with that. DECLARE_int64(heap_check_max_pointer_offset); // heap-checker.cc DECLARE_string(heap_check); // in heap-checker.cc #define WARN_IF(cond, msg) LOG_IF(WARNING, cond, msg) // This is an evil macro! Be very careful using it... #undef VLOG // and we start by evilling overriding logging.h VLOG #define VLOG(lvl) if (FLAGS_verbose >= (lvl)) cout << "\n" // This is, likewise, evil #define LOGF VLOG(INFO) static void RunHeapBusyThreads(); // below class Closure { public: virtual ~Closure() { } virtual void Run() = 0; }; class Callback0 : public Closure { public: typedef void (*FunctionSignature)(); inline Callback0(FunctionSignature f) : f_(f) {} virtual void Run() { (*f_)(); delete this; } private: FunctionSignature f_; }; template class Callback1 : public Closure { public: typedef void (*FunctionSignature)(P1); inline Callback1(FunctionSignature f, P1 p1) : f_(f), p1_(p1) {} virtual void Run() { (*f_)(p1_); delete this; } private: FunctionSignature f_; P1 p1_; }; template class Callback2 : public Closure { public: typedef void (*FunctionSignature)(P1,P2); inline Callback2(FunctionSignature f, P1 p1, P2 p2) : f_(f), p1_(p1), p2_(p2) {} virtual void Run() { (*f_)(p1_, p2_); delete this; } private: FunctionSignature f_; P1 p1_; P2 p2_; }; inline Callback0* NewCallback(void (*function)()) { return new Callback0(function); } template inline Callback1* NewCallback(void (*function)(P1), P1 p1) { return new Callback1(function, p1); } template inline Callback2* NewCallback(void (*function)(P1,P2), P1 p1, P2 p2) { return new Callback2(function, p1, p2); } // Set to true at end of main, so threads know. Not entirely thread-safe!, // but probably good enough. static bool g_have_exited_main = false; // If we can reliably create leaks (i.e. make leaked object // really unreachable from any global data). static bool can_create_leaks_reliably = false; // We use a simple allocation wrapper // to make sure we wipe out the newly allocated objects // in case they still happened to contain some pointer data // accidentally left by the memory allocator. struct Initialized { }; static Initialized initialized; void* operator new(size_t size, const Initialized&) { // Below we use "p = new(initialized) Foo[1];" and "delete[] p;" // instead of "p = new(initialized) Foo;" // when we need to delete an allocated object. void* p = malloc(size); memset(p, 0, size); return p; } void* operator new[](size_t size, const Initialized&) { char* p = new char[size]; memset(p, 0, size); return p; } static void DoWipeStack(int n); // defined below static void WipeStack() { DoWipeStack(20); } static void Pause() { poll(NULL, 0, 77); // time for thread activity in HeapBusyThreadBody // Indirectly test malloc_extension.*: CHECK(MallocExtension::instance()->VerifyAllMemory()); int blocks; size_t total; int histogram[kMallocHistogramSize]; if (MallocExtension::instance() ->MallocMemoryStats(&blocks, &total, histogram) && total != 0) { VLOG(3) << "Malloc stats: " << blocks << " blocks of " << total << " bytes"; for (int i = 0; i < kMallocHistogramSize; ++i) { if (histogram[i]) { VLOG(3) << " Malloc histogram at " << i << " : " << histogram[i]; } } } WipeStack(); // e.g. MallocExtension::VerifyAllMemory // can leave pointers to heap objects on stack } // Make gcc think a pointer is "used" template static void Use(T** foo) { VLOG(2) << "Dummy-using " << static_cast(*foo) << " at " << foo; } // Arbitrary value, but not such that xor'ing with it is likely // to map one valid pointer to another valid pointer: static const uintptr_t kHideMask = static_cast(0xF03A5F7BF03A5F7BLL); // Helpers to hide a pointer from live data traversal. // We just xor the pointer so that (with high probability) // it's not a valid address of a heap object anymore. // Both Hide and UnHide must be executed within RunHidden() below // to prevent leaving stale data on active stack that can be a pointer // to a heap object that is not actually reachable via live variables. // (UnHide might leave heap pointer value for an object // that will be deallocated but later another object // can be allocated at the same heap address.) template static void Hide(T** ptr) { // we cast values, not dereferenced pointers, so no aliasing issues: *ptr = reinterpret_cast(reinterpret_cast(*ptr) ^ kHideMask); VLOG(2) << "hid: " << static_cast(*ptr); } template static void UnHide(T** ptr) { VLOG(2) << "unhiding: " << static_cast(*ptr); // we cast values, not dereferenced pointers, so no aliasing issues: *ptr = reinterpret_cast(reinterpret_cast(*ptr) ^ kHideMask); } static void LogHidden(const char* message, const void* ptr) { LOGF << message << " : " << ptr << " ^ " << reinterpret_cast(kHideMask) << endl; } // volatile to fool the compiler against inlining the calls to these void (*volatile run_hidden_ptr)(Closure* c, int n); void (*volatile wipe_stack_ptr)(int n); static void DoRunHidden(Closure* c, int n) { if (n) { VLOG(10) << "Level " << n << " at " << &n; (*run_hidden_ptr)(c, n-1); (*wipe_stack_ptr)(n); sleep(0); // undo -foptimize-sibling-calls } else { c->Run(); } } /*static*/ void DoWipeStack(int n) { VLOG(10) << "Wipe level " << n << " at " << &n; if (n) { const int sz = 30; volatile int arr[sz] ATTRIBUTE_UNUSED; for (int i = 0; i < sz; ++i) arr[i] = 0; (*wipe_stack_ptr)(n-1); sleep(0); // undo -foptimize-sibling-calls } } // This executes closure c several stack frames down from the current one // and then makes an effort to also wipe out the stack data that was used by // the closure. // This way we prevent leak checker from finding any temporary pointers // of the closure execution on the stack and deciding that // these pointers (and the pointed objects) are still live. static void RunHidden(Closure* c) { DoRunHidden(c, 15); DoWipeStack(20); } static void DoAllocHidden(size_t size, void** ptr) { void* p = new(initialized) char[size]; Hide(&p); Use(&p); // use only hidden versions VLOG(2) << "Allocated hidden " << p << " at " << &p; *ptr = p; // assign the hidden versions } static void* AllocHidden(size_t size) { void* r; RunHidden(NewCallback(DoAllocHidden, size, &r)); return r; } static void DoDeAllocHidden(void** ptr) { Use(ptr); // use only hidden versions void* p = *ptr; VLOG(2) << "Deallocating hidden " << p; UnHide(&p); delete [] reinterpret_cast(p); } static void DeAllocHidden(void** ptr) { RunHidden(NewCallback(DoDeAllocHidden, ptr)); *ptr = NULL; Use(ptr); } void PreventHeapReclaiming(size_t size) { #ifdef NDEBUG if (true) { static void** no_reclaim_list = NULL; CHECK(size >= sizeof(void*)); // We can't use malloc_reclaim_memory flag in opt mode as debugallocation.cc // is not used. Instead we allocate a bunch of heap objects that are // of the same size as what we are going to leak to ensure that the object // we are about to leak is not at the same address as some old allocated // and freed object that might still have pointers leading to it. for (int i = 0; i < 100; ++i) { void** p = reinterpret_cast(new(initialized) char[size]); p[0] = no_reclaim_list; no_reclaim_list = p; } } #endif } static bool RunSilent(HeapLeakChecker* check, bool (HeapLeakChecker::* func)()) { // By default, don't print the 'we detected a leak' message in the // cases we're expecting a leak (we still print when --v is >= 1). // This way, the logging output is less confusing: we only print // "we detected a leak", and how to diagnose it, for *unexpected* leaks. int32 old_FLAGS_verbose = FLAGS_verbose; if (!VLOG_IS_ON(1)) // not on a verbose setting FLAGS_verbose = FATAL; // only log fatal errors const bool retval = (check->*func)(); FLAGS_verbose = old_FLAGS_verbose; return retval; } #define RUN_SILENT(check, func) RunSilent(&(check), &HeapLeakChecker::func) enum CheckType { SAME_HEAP, NO_LEAKS }; static void VerifyLeaks(HeapLeakChecker* check, CheckType type, int leaked_bytes, int leaked_objects) { WipeStack(); // to help with can_create_leaks_reliably const bool no_leaks = type == NO_LEAKS ? RUN_SILENT(*check, BriefNoLeaks) : RUN_SILENT(*check, BriefSameHeap); if (can_create_leaks_reliably) { // these might still fail occasionally, but it should be very rare CHECK_EQ(no_leaks, false); CHECK_EQ(check->BytesLeaked(), leaked_bytes); CHECK_EQ(check->ObjectsLeaked(), leaked_objects); } else { WARN_IF(no_leaks != false, "Expected leaks not found: " "Some liveness flood must be too optimistic"); } } // not deallocates static void TestHeapLeakCheckerDeathSimple() { HeapLeakChecker check("death_simple"); void* foo = AllocHidden(100 * sizeof(int)); Use(&foo); void* bar = AllocHidden(300); Use(&bar); LogHidden("Leaking", foo); LogHidden("Leaking", bar); Pause(); VerifyLeaks(&check, NO_LEAKS, 300 + 100 * sizeof(int), 2); DeAllocHidden(&foo); DeAllocHidden(&bar); } static void MakeDeathLoop(void** arr1, void** arr2) { PreventHeapReclaiming(2 * sizeof(void*)); void** a1 = new(initialized) void*[2]; void** a2 = new(initialized) void*[2]; a1[1] = reinterpret_cast(a2); a2[1] = reinterpret_cast(a1); Hide(&a1); Hide(&a2); Use(&a1); Use(&a2); VLOG(2) << "Made hidden loop at " << &a1 << " to " << arr1; *arr1 = a1; *arr2 = a2; } // not deallocates two objects linked together static void TestHeapLeakCheckerDeathLoop() { HeapLeakChecker check("death_loop"); void* arr1; void* arr2; RunHidden(NewCallback(MakeDeathLoop, &arr1, &arr2)); Use(&arr1); Use(&arr2); LogHidden("Leaking", arr1); LogHidden("Leaking", arr2); Pause(); VerifyLeaks(&check, NO_LEAKS, 4 * sizeof(void*), 2); DeAllocHidden(&arr1); DeAllocHidden(&arr2); } // deallocates more than allocates static void TestHeapLeakCheckerDeathInverse() { void* bar = AllocHidden(250 * sizeof(int)); Use(&bar); LogHidden("Pre leaking", bar); Pause(); HeapLeakChecker check("death_inverse"); void* foo = AllocHidden(100 * sizeof(int)); Use(&foo); LogHidden("Leaking", foo); DeAllocHidden(&bar); Pause(); VerifyLeaks(&check, SAME_HEAP, 100 * static_cast(sizeof(int)), 1); DeAllocHidden(&foo); } // deallocates more than allocates static void TestHeapLeakCheckerDeathNoLeaks() { void* foo = AllocHidden(100 * sizeof(int)); Use(&foo); void* bar = AllocHidden(250 * sizeof(int)); Use(&bar); HeapLeakChecker check("death_noleaks"); DeAllocHidden(&bar); CHECK_EQ(check.BriefNoLeaks(), true); DeAllocHidden(&foo); } // have less objecs static void TestHeapLeakCheckerDeathCountLess() { void* bar1 = AllocHidden(50 * sizeof(int)); Use(&bar1); void* bar2 = AllocHidden(50 * sizeof(int)); Use(&bar2); LogHidden("Pre leaking", bar1); LogHidden("Pre leaking", bar2); Pause(); HeapLeakChecker check("death_count_less"); void* foo = AllocHidden(100 * sizeof(int)); Use(&foo); LogHidden("Leaking", foo); DeAllocHidden(&bar1); DeAllocHidden(&bar2); Pause(); VerifyLeaks(&check, SAME_HEAP, 100 * sizeof(int), 1); DeAllocHidden(&foo); } // have more objecs static void TestHeapLeakCheckerDeathCountMore() { void* foo = AllocHidden(100 * sizeof(int)); Use(&foo); LogHidden("Pre leaking", foo); Pause(); HeapLeakChecker check("death_count_more"); void* bar1 = AllocHidden(50 * sizeof(int)); Use(&bar1); void* bar2 = AllocHidden(50 * sizeof(int)); Use(&bar2); LogHidden("Leaking", bar1); LogHidden("Leaking", bar2); DeAllocHidden(&foo); Pause(); VerifyLeaks(&check, SAME_HEAP, 100 * sizeof(int), 2); DeAllocHidden(&bar1); DeAllocHidden(&bar2); } static void TestHiddenPointer() { int i; void* foo = &i; HiddenPointer p(foo); CHECK_EQ(foo, p.get()); // Confirm pointer doesn't appear to contain a byte sequence // that == the pointer. We don't really need to test that // the xor trick itself works, as without it nothing in this // test suite would work. See the Hide/Unhide/*Hidden* set // of helper methods. void **pvoid = reinterpret_cast(&p); CHECK_NE(foo, *pvoid); } // simple tests that deallocate what they allocated static void TestHeapLeakChecker() { { HeapLeakChecker check("trivial"); int foo = 5; int* p = &foo; Use(&p); Pause(); CHECK(check.BriefSameHeap()); } Pause(); { HeapLeakChecker check("simple"); void* foo = AllocHidden(100 * sizeof(int)); Use(&foo); void* bar = AllocHidden(200 * sizeof(int)); Use(&bar); DeAllocHidden(&foo); DeAllocHidden(&bar); Pause(); CHECK(check.BriefSameHeap()); } } // no false positives static void TestHeapLeakCheckerNoFalsePositives() { { HeapLeakChecker check("trivial_p"); int foo = 5; int* p = &foo; Use(&p); Pause(); CHECK(check.BriefSameHeap()); } Pause(); { HeapLeakChecker check("simple_p"); void* foo = AllocHidden(100 * sizeof(int)); Use(&foo); void* bar = AllocHidden(200 * sizeof(int)); Use(&bar); DeAllocHidden(&foo); DeAllocHidden(&bar); Pause(); CHECK(check.SameHeap()); } } // test that we detect leaks when we have same total # of bytes and // objects, but different individual object sizes static void TestLeakButTotalsMatch() { void* bar1 = AllocHidden(240 * sizeof(int)); Use(&bar1); void* bar2 = AllocHidden(160 * sizeof(int)); Use(&bar2); LogHidden("Pre leaking", bar1); LogHidden("Pre leaking", bar2); Pause(); HeapLeakChecker check("trick"); void* foo1 = AllocHidden(280 * sizeof(int)); Use(&foo1); void* foo2 = AllocHidden(120 * sizeof(int)); Use(&foo2); LogHidden("Leaking", foo1); LogHidden("Leaking", foo2); DeAllocHidden(&bar1); DeAllocHidden(&bar2); Pause(); // foo1 and foo2 leaked VerifyLeaks(&check, NO_LEAKS, (280+120)*sizeof(int), 2); DeAllocHidden(&foo1); DeAllocHidden(&foo2); } // no false negatives from pprof static void TestHeapLeakCheckerDeathTrick() { void* bar1 = AllocHidden(240 * sizeof(int)); Use(&bar1); void* bar2 = AllocHidden(160 * sizeof(int)); Use(&bar2); HeapLeakChecker check("death_trick"); DeAllocHidden(&bar1); DeAllocHidden(&bar2); void* foo1 = AllocHidden(280 * sizeof(int)); Use(&foo1); void* foo2 = AllocHidden(120 * sizeof(int)); Use(&foo2); // TODO(maxim): use the above if we make pprof work in automated test runs if (!FLAGS_maybe_stripped) { CHECK_EQ(RUN_SILENT(check, SameHeap), false); // pprof checking should catch the leak } else { WARN_IF(RUN_SILENT(check, SameHeap) != false, "death_trick leak is not caught; " "we must be using a stripped binary"); } DeAllocHidden(&foo1); DeAllocHidden(&foo2); } // simple leak static void TransLeaks() { AllocHidden(1 * sizeof(char)); } // range-based disabling using Disabler static void ScopedDisabledLeaks() { HeapLeakChecker::Disabler disabler; AllocHidden(3 * sizeof(int)); TransLeaks(); (void)malloc(10); // Direct leak } // have different disabled leaks static void* RunDisabledLeaks(void* a) { ScopedDisabledLeaks(); return a; } // have different disabled leaks inside of a thread static void ThreadDisabledLeaks() { if (FLAGS_no_threads) return; pthread_t tid; pthread_attr_t attr; CHECK_EQ(pthread_attr_init(&attr), 0); CHECK_EQ(pthread_create(&tid, &attr, RunDisabledLeaks, NULL), 0); void* res; CHECK_EQ(pthread_join(tid, &res), 0); } // different disabled leaks (some in threads) static void TestHeapLeakCheckerDisabling() { HeapLeakChecker check("disabling"); RunDisabledLeaks(NULL); RunDisabledLeaks(NULL); ThreadDisabledLeaks(); RunDisabledLeaks(NULL); ThreadDisabledLeaks(); ThreadDisabledLeaks(); Pause(); CHECK(check.SameHeap()); } typedef set IntSet; static int some_ints[] = { 1, 2, 3, 21, 22, 23, 24, 25 }; static void DoTestSTLAlloc() { IntSet* x = new(initialized) IntSet[1]; *x = IntSet(some_ints, some_ints + 6); for (int i = 0; i < 1000; i++) { x->insert(i*3); } delete [] x; } // Check that normal STL usage does not result in a leak report. // (In particular we test that there's no complex STL's own allocator // running on top of our allocator with hooks to heap profiler // that can result in false leak report in this case.) static void TestSTLAlloc() { HeapLeakChecker check("stl"); RunHidden(NewCallback(DoTestSTLAlloc)); CHECK_EQ(check.BriefSameHeap(), true); } static void DoTestSTLAllocInverse(IntSet** setx) { IntSet* x = new(initialized) IntSet[1]; *x = IntSet(some_ints, some_ints + 3); for (int i = 0; i < 100; i++) { x->insert(i*2); } Hide(&x); *setx = x; } static void FreeTestSTLAllocInverse(IntSet** setx) { IntSet* x = *setx; UnHide(&x); delete [] x; } // Check that normal leaked STL usage *does* result in a leak report. // (In particular we test that there's no complex STL's own allocator // running on top of our allocator with hooks to heap profiler // that can result in false absence of leak report in this case.) static void TestSTLAllocInverse() { HeapLeakChecker check("death_inverse_stl"); IntSet* x; RunHidden(NewCallback(DoTestSTLAllocInverse, &x)); LogHidden("Leaking", x); if (can_create_leaks_reliably) { WipeStack(); // to help with can_create_leaks_reliably // these might still fail occasionally, but it should be very rare CHECK_EQ(RUN_SILENT(check, BriefNoLeaks), false); CHECK_GE(check.BytesLeaked(), 100 * sizeof(int)); CHECK_GE(check.ObjectsLeaked(), 100); // assumes set<>s are represented by some kind of binary tree // or something else allocating >=1 heap object per set object } else { WARN_IF(RUN_SILENT(check, BriefNoLeaks) != false, "Expected leaks not found: " "Some liveness flood must be too optimistic"); } RunHidden(NewCallback(FreeTestSTLAllocInverse, &x)); } template static void DirectTestSTLAlloc(Alloc allocator, const char* name) { HeapLeakChecker check((string("direct_stl-") + name).c_str()); static const int kSize = 1000; typename Alloc::pointer ptrs[kSize]; for (int i = 0; i < kSize; ++i) { typename Alloc::pointer p = allocator.allocate(i*3+1); HeapLeakChecker::IgnoreObject(p); // This will crash if p is not known to heap profiler: // (i.e. STL's "allocator" does not have a direct hook to heap profiler) HeapLeakChecker::UnIgnoreObject(p); ptrs[i] = p; } for (int i = 0; i < kSize; ++i) { allocator.deallocate(ptrs[i], i*3+1); ptrs[i] = NULL; } CHECK(check.BriefSameHeap()); // just in case } static struct group* grp = NULL; static const int kKeys = 50; static pthread_key_t key[kKeys]; static void KeyFree(void* ptr) { delete [] reinterpret_cast(ptr); } static bool key_init_has_run = false; static void KeyInit() { for (int i = 0; i < kKeys; ++i) { CHECK_EQ(pthread_key_create(&key[i], KeyFree), 0); VLOG(2) << "pthread key " << i << " : " << key[i]; } key_init_has_run = true; // needed for a sanity-check } // force various C library static and thread-specific allocations static void TestLibCAllocate() { CHECK(key_init_has_run); for (int i = 0; i < kKeys; ++i) { void* p = pthread_getspecific(key[i]); if (NULL == p) { if (i == 0) { // Test-logging inside threads which (potentially) creates and uses // thread-local data inside standard C++ library: VLOG(0) << "Adding pthread-specifics for thread " << pthread_self() << " pid " << getpid(); } p = new(initialized) char[77 + i]; VLOG(2) << "pthread specific " << i << " : " << p; pthread_setspecific(key[i], p); } } strerror(errno); const time_t now = time(NULL); ctime(&now); #ifdef HAVE_EXECINFO_H void *stack[1]; backtrace(stack, 1); #endif #ifdef HAVE_GRP_H gid_t gid = getgid(); getgrgid(gid); if (grp == NULL) grp = getgrent(); // a race condition here is okay getgrnam(grp->gr_name); #endif #ifdef HAVE_PWD_H getpwuid(geteuid()); #endif } // Continuous random heap memory activity to try to disrupt heap checking. static void* HeapBusyThreadBody(void* a) { const int thread_num = reinterpret_cast(a); VLOG(0) << "A new HeapBusyThread " << thread_num; TestLibCAllocate(); int user = 0; // Try to hide ptr from heap checker in a CPU register: // Here we are just making a best effort to put the only pointer // to a heap object into a thread register to test // the thread-register finding machinery in the heap checker. #if defined(__i386__) && defined(__GNUC__) register int** ptr asm("esi"); #elif defined(__x86_64__) && defined(__GNUC__) register int** ptr asm("r15"); #else register int** ptr; #endif ptr = NULL; typedef set Set; Set s1; while (1) { // TestLibCAllocate() calls libc functions that don't work so well // after main() has exited. So we just don't do the test then. if (!g_have_exited_main) TestLibCAllocate(); if (ptr == NULL) { ptr = new(initialized) int*[1]; *ptr = new(initialized) int[1]; } set* s2 = new(initialized) set[1]; s1.insert(random()); s2->insert(*s1.begin()); user += *s2->begin(); **ptr += user; if (random() % 51 == 0) { s1.clear(); if (random() % 2 == 0) { s1.~Set(); new(&s1) Set; } } VLOG(3) << pthread_self() << " (" << getpid() << "): in wait: " << ptr << ", " << *ptr << "; " << s1.size(); VLOG(2) << pthread_self() << " (" << getpid() << "): in wait, ptr = " << reinterpret_cast( reinterpret_cast(ptr) ^ kHideMask) << "^" << reinterpret_cast(kHideMask); if (FLAGS_test_register_leak && thread_num % 5 == 0) { // Hide the register "ptr" value with an xor mask. // If one provides --test_register_leak flag, the test should // (with very high probability) crash on some leak check // with a leak report (of some x * sizeof(int) + y * sizeof(int*) bytes) // pointing at the two lines above in this function // with "new(initialized) int" in them as the allocators // of the leaked objects. // CAVEAT: We can't really prevent a compiler to save some // temporary values of "ptr" on the stack and thus let us find // the heap objects not via the register. // Hence it's normal if for certain compilers or optimization modes // --test_register_leak does not cause a leak crash of the above form // (this happens e.g. for gcc 4.0.1 in opt mode). ptr = reinterpret_cast( reinterpret_cast(ptr) ^ kHideMask); // busy loop to get the thread interrupted at: for (int i = 1; i < 10000000; ++i) user += (1 + user * user * 5) / i; ptr = reinterpret_cast( reinterpret_cast(ptr) ^ kHideMask); } else { poll(NULL, 0, random() % 100); } VLOG(2) << pthread_self() << ": continuing"; if (random() % 3 == 0) { delete [] *ptr; delete [] ptr; ptr = NULL; } delete [] s2; } return a; } static void RunHeapBusyThreads() { KeyInit(); if (!FLAGS_interfering_threads || FLAGS_no_threads) return; const int n = 17; // make many threads pthread_t tid; pthread_attr_t attr; CHECK_EQ(pthread_attr_init(&attr), 0); // make them and let them run for (int i = 0; i < n; ++i) { VLOG(0) << "Creating extra thread " << i + 1; CHECK(pthread_create(&tid, &attr, HeapBusyThreadBody, reinterpret_cast(i)) == 0); } Pause(); Pause(); } // ========================================================================= // // This code section is to test that objects that are reachable from global // variables are not reported as leaks // as well as that (Un)IgnoreObject work for such objects fine. // An object making functions: // returns a "weird" pointer to a new object for which // it's worth checking that the object is reachable via that pointer. typedef void* (*ObjMakerFunc)(); static list obj_makers; // list of registered object makers // Helper macro to register an object making function // 'name' is an identifier of this object maker, // 'body' is its function body that must declare // pointer 'p' to the nex object to return. // Usage example: // REGISTER_OBJ_MAKER(trivial, int* p = new(initialized) int;) #define REGISTER_OBJ_MAKER(name, body) \ void* ObjMaker_##name##_() { \ VLOG(1) << "Obj making " << #name; \ body; \ return p; \ } \ static ObjMakerRegistrar maker_reg_##name##__(&ObjMaker_##name##_); // helper class for REGISTER_OBJ_MAKER struct ObjMakerRegistrar { ObjMakerRegistrar(ObjMakerFunc obj_maker) { obj_makers.push_back(obj_maker); } }; // List of the objects/pointers made with all the obj_makers // to test reachability via global data pointers during leak checks. static list* live_objects = new list; // pointer so that it does not get destructed on exit // Exerciser for one ObjMakerFunc. static void TestPointerReach(ObjMakerFunc obj_maker) { HeapLeakChecker::IgnoreObject(obj_maker()); // test IgnoreObject void* obj = obj_maker(); HeapLeakChecker::IgnoreObject(obj); HeapLeakChecker::UnIgnoreObject(obj); // test UnIgnoreObject HeapLeakChecker::IgnoreObject(obj); // not to need deletion for obj live_objects->push_back(obj_maker()); // test reachability at leak check } // Test all ObjMakerFunc registred via REGISTER_OBJ_MAKER. static void TestObjMakers() { for (list::const_iterator i = obj_makers.begin(); i != obj_makers.end(); ++i) { TestPointerReach(*i); TestPointerReach(*i); // a couple more times would not hurt TestPointerReach(*i); } } // A dummy class to mimic allocation behavior of string-s. template struct Array { Array() { size = 3 + random() % 30; ptr = new(initialized) T[size]; } ~Array() { delete [] ptr; } Array(const Array& x) { size = x.size; ptr = new(initialized) T[size]; for (size_t i = 0; i < size; ++i) { ptr[i] = x.ptr[i]; } } void operator=(const Array& x) { delete [] ptr; size = x.size; ptr = new(initialized) T[size]; for (size_t i = 0; i < size; ++i) { ptr[i] = x.ptr[i]; } } void append(const Array& x) { T* p = new(initialized) T[size + x.size]; for (size_t i = 0; i < size; ++i) { p[i] = ptr[i]; } for (size_t i = 0; i < x.size; ++i) { p[size+i] = x.ptr[i]; } size += x.size; delete [] ptr; ptr = p; } private: size_t size; T* ptr; }; // to test pointers to objects, built-in arrays, string, etc: REGISTER_OBJ_MAKER(plain, int* p = new(initialized) int;) REGISTER_OBJ_MAKER(int_array_1, int* p = new(initialized) int[1];) REGISTER_OBJ_MAKER(int_array, int* p = new(initialized) int[10];) REGISTER_OBJ_MAKER(string, Array* p = new(initialized) Array();) REGISTER_OBJ_MAKER(string_array, Array* p = new(initialized) Array[5];) REGISTER_OBJ_MAKER(char_array, char* p = new(initialized) char[5];) REGISTER_OBJ_MAKER(appended_string, Array* p = new Array(); p->append(Array()); ) REGISTER_OBJ_MAKER(plain_ptr, int** p = new(initialized) int*;) REGISTER_OBJ_MAKER(linking_ptr, int** p = new(initialized) int*; *p = new(initialized) int; ) // small objects: REGISTER_OBJ_MAKER(0_sized, void* p = malloc(0);) // 0-sized object (important) REGISTER_OBJ_MAKER(1_sized, void* p = malloc(1);) REGISTER_OBJ_MAKER(2_sized, void* p = malloc(2);) REGISTER_OBJ_MAKER(3_sized, void* p = malloc(3);) REGISTER_OBJ_MAKER(4_sized, void* p = malloc(4);) static int set_data[] = { 1, 2, 3, 4, 5, 6, 7, 21, 22, 23, 24, 25, 26, 27 }; static set live_leak_set(set_data, set_data+7); static const set live_leak_const_set(set_data, set_data+14); REGISTER_OBJ_MAKER(set, set* p = new(initialized) set(set_data, set_data + 13); ) class ClassA { public: explicit ClassA(int a) : ptr(NULL) { } mutable char* ptr; }; static const ClassA live_leak_mutable(1); template class TClass { public: explicit TClass(int a) : ptr(NULL) { } mutable C val; mutable C* ptr; }; static const TClass > live_leak_templ_mutable(1); class ClassB { public: ClassB() { } char b[7]; virtual void f() { } virtual ~ClassB() { } }; class ClassB2 { public: ClassB2() { } char b2[11]; virtual void f2() { } virtual ~ClassB2() { } }; class ClassD1 : public ClassB { char d1[15]; virtual void f() { } }; class ClassD2 : public ClassB2 { char d2[19]; virtual void f2() { } }; class ClassD : public ClassD1, public ClassD2 { char d[3]; virtual void f() { } virtual void f2() { } }; // to test pointers to objects of base subclasses: REGISTER_OBJ_MAKER(B, ClassB* p = new(initialized) ClassB;) REGISTER_OBJ_MAKER(D1, ClassD1* p = new(initialized) ClassD1;) REGISTER_OBJ_MAKER(D2, ClassD2* p = new(initialized) ClassD2;) REGISTER_OBJ_MAKER(D, ClassD* p = new(initialized) ClassD;) REGISTER_OBJ_MAKER(D1_as_B, ClassB* p = new(initialized) ClassD1;) REGISTER_OBJ_MAKER(D2_as_B2, ClassB2* p = new(initialized) ClassD2;) REGISTER_OBJ_MAKER(D_as_B, ClassB* p = new(initialized) ClassD;) REGISTER_OBJ_MAKER(D_as_D1, ClassD1* p = new(initialized) ClassD;) // inside-object pointers: REGISTER_OBJ_MAKER(D_as_B2, ClassB2* p = new(initialized) ClassD;) REGISTER_OBJ_MAKER(D_as_D2, ClassD2* p = new(initialized) ClassD;) class InterfaceA { public: virtual void A() = 0; virtual ~InterfaceA() { } protected: InterfaceA() { } }; class InterfaceB { public: virtual void B() = 0; virtual ~InterfaceB() { } protected: InterfaceB() { } }; class InterfaceC : public InterfaceA { public: virtual void C() = 0; virtual ~InterfaceC() { } protected: InterfaceC() { } }; class ClassMltD1 : public ClassB, public InterfaceB, public InterfaceC { public: char d1[11]; virtual void f() { } virtual void A() { } virtual void B() { } virtual void C() { } }; class ClassMltD2 : public InterfaceA, public InterfaceB, public ClassB { public: char d2[15]; virtual void f() { } virtual void A() { } virtual void B() { } }; // to specifically test heap reachability under // inerface-only multiple inheritance (some use inside-object pointers): REGISTER_OBJ_MAKER(MltD1, ClassMltD1* p = new(initialized) ClassMltD1;) REGISTER_OBJ_MAKER(MltD1_as_B, ClassB* p = new(initialized) ClassMltD1;) REGISTER_OBJ_MAKER(MltD1_as_IA, InterfaceA* p = new(initialized) ClassMltD1;) REGISTER_OBJ_MAKER(MltD1_as_IB, InterfaceB* p = new(initialized) ClassMltD1;) REGISTER_OBJ_MAKER(MltD1_as_IC, InterfaceC* p = new(initialized) ClassMltD1;) REGISTER_OBJ_MAKER(MltD2, ClassMltD2* p = new(initialized) ClassMltD2;) REGISTER_OBJ_MAKER(MltD2_as_B, ClassB* p = new(initialized) ClassMltD2;) REGISTER_OBJ_MAKER(MltD2_as_IA, InterfaceA* p = new(initialized) ClassMltD2;) REGISTER_OBJ_MAKER(MltD2_as_IB, InterfaceB* p = new(initialized) ClassMltD2;) // to mimic UnicodeString defined in third_party/icu, // which store a platform-independent-sized refcount in the first // few bytes and keeps a pointer pointing behind the refcount. REGISTER_OBJ_MAKER(unicode_string, char* p = new char[sizeof(uint32) * 10]; p += sizeof(uint32); ) // similar, but for platform-dependent-sized refcount REGISTER_OBJ_MAKER(ref_counted, char* p = new char[sizeof(int) * 20]; p += sizeof(int); ) struct Nesting { struct Inner { Nesting* parent; Inner(Nesting* p) : parent(p) {} }; Inner i0; char n1[5]; Inner i1; char n2[11]; Inner i2; char n3[27]; Inner i3; Nesting() : i0(this), i1(this), i2(this), i3(this) {} }; // to test inside-object pointers pointing at objects nested into heap objects: REGISTER_OBJ_MAKER(nesting_i0, Nesting::Inner* p = &((new Nesting())->i0);) REGISTER_OBJ_MAKER(nesting_i1, Nesting::Inner* p = &((new Nesting())->i1);) REGISTER_OBJ_MAKER(nesting_i2, Nesting::Inner* p = &((new Nesting())->i2);) REGISTER_OBJ_MAKER(nesting_i3, Nesting::Inner* p = &((new Nesting())->i3);) // allocate many objects reachable from global data static void TestHeapLeakCheckerLiveness() { live_leak_mutable.ptr = new(initialized) char[77]; live_leak_templ_mutable.ptr = new(initialized) Array(); live_leak_templ_mutable.val = Array(); TestObjMakers(); } // ========================================================================= // // Get address (PC value) following the mmap call into addr_after_mmap_call static void* Mmapper(uintptr_t* addr_after_mmap_call) { void* r = mmap(NULL, 100, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); // Get current PC value into addr_after_mmap_call void* stack[1]; CHECK_EQ(GetStackTrace(stack, 1, 0), 1); *addr_after_mmap_call = reinterpret_cast(stack[0]); sleep(0); // undo -foptimize-sibling-calls return r; } // On PPC64 the stacktrace returned by GetStatcTrace contains the function // address from .text segment while function pointers points to ODP entries. // The following code decodes the ODP to get the actual symbol address. #if defined(__linux) && defined(__PPC64__) && (_CALL_ELF != 2) static inline uintptr_t GetFunctionAddress (void* (*func)(uintptr_t*)) { struct odp_entry_t { unsigned long int symbol; unsigned long int toc; unsigned long int env; } *odp_entry = reinterpret_cast(func); return static_cast(odp_entry->symbol); } #else static inline uintptr_t GetFunctionAddress (void* (*func)(uintptr_t*)) { return reinterpret_cast(func); } #endif // to trick complier into preventing inlining static void* (*mmapper_addr)(uintptr_t* addr) = &Mmapper; // TODO(maxim): copy/move this to memory_region_map_unittest // TODO(maxim): expand this test to include mmap64, mremap and sbrk calls. static void VerifyMemoryRegionMapStackGet() { uintptr_t caller_addr_limit; void* addr = (*mmapper_addr)(&caller_addr_limit); uintptr_t caller = 0; { MemoryRegionMap::LockHolder l; for (MemoryRegionMap::RegionIterator i = MemoryRegionMap::BeginRegionLocked(); i != MemoryRegionMap::EndRegionLocked(); ++i) { if (i->start_addr == reinterpret_cast(addr)) { CHECK_EQ(caller, 0); caller = i->caller(); } } } // caller must point into Mmapper function: if (!(GetFunctionAddress(mmapper_addr) <= caller && caller < caller_addr_limit)) { LOGF << std::hex << "0x" << caller << " does not seem to point into code of function Mmapper at " << "0x" << reinterpret_cast(mmapper_addr) << "! Stack frame collection must be off in MemoryRegionMap!"; LOG(FATAL, "\n"); } munmap(addr, 100); } static void* Mallocer(uintptr_t* addr_after_malloc_call) { void* r = malloc(100); sleep(0); // undo -foptimize-sibling-calls // Get current PC value into addr_after_malloc_call void* stack[1]; CHECK_EQ(GetStackTrace(stack, 1, 0), 1); *addr_after_malloc_call = reinterpret_cast(stack[0]); return r; } // to trick complier into preventing inlining static void* (*mallocer_addr)(uintptr_t* addr) = &Mallocer; // non-static for friendship with HeapProfiler // TODO(maxim): expand this test to include // realloc, calloc, memalign, valloc, pvalloc, new, and new[]. extern void VerifyHeapProfileTableStackGet() { uintptr_t caller_addr_limit; void* addr = (*mallocer_addr)(&caller_addr_limit); uintptr_t caller = reinterpret_cast(HeapLeakChecker::GetAllocCaller(addr)); // caller must point into Mallocer function: if (!(GetFunctionAddress(mallocer_addr) <= caller && caller < caller_addr_limit)) { LOGF << std::hex << "0x" << caller << " does not seem to point into code of function Mallocer at " << "0x" << reinterpret_cast(mallocer_addr) << "! Stack frame collection must be off in heap profiler!"; LOG(FATAL, "\n"); } free(addr); } // ========================================================================= // static void MakeALeak(void** arr) { PreventHeapReclaiming(10 * sizeof(int)); void* a = new(initialized) int[10]; Hide(&a); *arr = a; } // Helper to do 'return 0;' inside main(): insted we do 'return Pass();' static int Pass() { fprintf(stdout, "PASS\n"); g_have_exited_main = true; return 0; } int main(int argc, char** argv) { run_hidden_ptr = DoRunHidden; wipe_stack_ptr = DoWipeStack; if (!HeapLeakChecker::IsActive()) { CHECK_EQ(FLAGS_heap_check, ""); LOG(WARNING, "HeapLeakChecker got turned off; we won't test much..."); } else { VerifyMemoryRegionMapStackGet(); VerifyHeapProfileTableStackGet(); } KeyInit(); // glibc 2.4, on x86_64 at least, has a lock-ordering bug, which // means deadlock is possible when one thread calls dl_open at the // same time another thread is calling dl_iterate_phdr. libunwind // calls dl_iterate_phdr, and TestLibCAllocate calls dl_open (or the // various syscalls in it do), at least the first time it's run. // To avoid the deadlock, we run TestLibCAllocate once before getting // multi-threaded. // TODO(csilvers): once libc is fixed, or libunwind can work around it, // get rid of this early call. We *want* our test to // find potential problems like this one! TestLibCAllocate(); if (FLAGS_interfering_threads) { RunHeapBusyThreads(); // add interference early } TestLibCAllocate(); LOGF << "In main(): heap_check=" << FLAGS_heap_check << endl; CHECK(HeapLeakChecker::NoGlobalLeaks()); // so far, so good if (FLAGS_test_leak) { void* arr; RunHidden(NewCallback(MakeALeak, &arr)); Use(&arr); LogHidden("Leaking", arr); if (FLAGS_test_cancel_global_check) { HeapLeakChecker::CancelGlobalCheck(); } else { // Verify we can call NoGlobalLeaks repeatedly without deadlocking HeapLeakChecker::NoGlobalLeaks(); HeapLeakChecker::NoGlobalLeaks(); } return Pass(); // whole-program leak-check should (with very high probability) // catch the leak of arr (10 * sizeof(int) bytes) // (when !FLAGS_test_cancel_global_check) } if (FLAGS_test_loop_leak) { void* arr1; void* arr2; RunHidden(NewCallback(MakeDeathLoop, &arr1, &arr2)); Use(&arr1); Use(&arr2); LogHidden("Loop leaking", arr1); LogHidden("Loop leaking", arr2); if (FLAGS_test_cancel_global_check) { HeapLeakChecker::CancelGlobalCheck(); } else { // Verify we can call NoGlobalLeaks repeatedly without deadlocking HeapLeakChecker::NoGlobalLeaks(); HeapLeakChecker::NoGlobalLeaks(); } return Pass(); // whole-program leak-check should (with very high probability) // catch the leak of arr1 and arr2 (4 * sizeof(void*) bytes) // (when !FLAGS_test_cancel_global_check) } if (FLAGS_test_register_leak) { // make us fail only where the .sh test expects: Pause(); for (int i = 0; i < 100; ++i) { // give it some time to crash CHECK(HeapLeakChecker::NoGlobalLeaks()); Pause(); } return Pass(); } TestHeapLeakCheckerLiveness(); HeapLeakChecker heap_check("all"); TestHiddenPointer(); TestHeapLeakChecker(); Pause(); TestLeakButTotalsMatch(); Pause(); TestHeapLeakCheckerDeathSimple(); Pause(); TestHeapLeakCheckerDeathLoop(); Pause(); TestHeapLeakCheckerDeathInverse(); Pause(); TestHeapLeakCheckerDeathNoLeaks(); Pause(); TestHeapLeakCheckerDeathCountLess(); Pause(); TestHeapLeakCheckerDeathCountMore(); Pause(); TestHeapLeakCheckerDeathTrick(); Pause(); CHECK(HeapLeakChecker::NoGlobalLeaks()); // so far, so good TestHeapLeakCheckerNoFalsePositives(); Pause(); TestHeapLeakCheckerDisabling(); Pause(); TestSTLAlloc(); Pause(); TestSTLAllocInverse(); Pause(); // Test that various STL allocators work. Some of these are redundant, but // we don't know how STL might change in the future. For example, // http://wiki/Main/StringNeStdString. #define DTSL(a) { DirectTestSTLAlloc(a, #a); \ Pause(); } DTSL(std::allocator()); DTSL(std::allocator()); DTSL(std::string().get_allocator()); DTSL(string().get_allocator()); DTSL(vector().get_allocator()); DTSL(vector().get_allocator()); DTSL(vector >().get_allocator()); DTSL(vector().get_allocator()); DTSL((map().get_allocator())); DTSL((map().get_allocator())); DTSL(set().get_allocator()); #undef DTSL TestLibCAllocate(); Pause(); CHECK(HeapLeakChecker::NoGlobalLeaks()); // so far, so good Pause(); if (!FLAGS_maybe_stripped) { CHECK(heap_check.SameHeap()); } else { WARN_IF(heap_check.SameHeap() != true, "overall leaks are caught; we must be using a stripped binary"); } CHECK(HeapLeakChecker::NoGlobalLeaks()); // so far, so good return Pass(); } gperftools-2.4/src/tests/heap-checker_unittest.sh0000755000000000000000000000602712440704174017210 00000000000000#!/bin/sh # Copyright (c) 2005, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Author: Craig Silverstein # # Runs the heap-checker unittest with various environment variables. # This is necessary because we turn on features like the heap profiler # and heap checker via environment variables. This test makes sure # they all play well together. # We expect BINDIR and PPROF_PATH to be set in the environment. # If not, we set them to some reasonable values BINDIR="${BINDIR:-.}" PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}" if [ "x$1" = "x-h" -o "$1" = "x--help" ]; then echo "USAGE: $0 [unittest dir] [path to pprof]" echo " By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH" exit 1 fi HEAP_CHECKER="${1:-$BINDIR/heap-checker_unittest}" PPROF_PATH="${2:-$PPROF_PATH}" TMPDIR=/tmp/heap_check_info rm -rf $TMPDIR || exit 2 mkdir $TMPDIR || exit 3 # $1: value of heap-check env. var. run_check() { export PPROF_PATH="$PPROF_PATH" [ -n "$1" ] && export HEAPCHECK="$1" || unset HEAPPROFILE echo -n "Testing $HEAP_CHECKER with HEAPCHECK=$1 ... " if $HEAP_CHECKER > $TMPDIR/output 2>&1; then echo "OK" else echo "FAILED" echo "Output from the failed run:" echo "----" cat $TMPDIR/output echo "----" exit 4 fi # If we set HEAPPROFILE, then we expect it to actually have emitted # a profile. Check that it did. if [ -n "$HEAPPROFILE" ]; then [ -e "$HEAPPROFILE.0001.heap" ] || exit 5 fi } run_check "" run_check "local" run_check "normal" run_check "strict" rm -rf $TMPDIR # clean up echo "PASS" gperftools-2.4/src/tests/heap-profiler_unittest.cc0000644000000000000000000001204412440704174017372 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // A small program that just exercises our heap profiler by allocating // memory and letting the heap-profiler emit a profile. We don't test // threads (TODO). By itself, this unittest tests that the heap-profiler // doesn't crash on simple programs, but its output can be analyzed by // another testing script to actually verify correctness. See, eg, // heap-profiler_unittest.sh. #include "config_for_unittests.h" #include #include #include // for mkdir() #include // for mkdir() on freebsd and os x #ifdef HAVE_UNISTD_H #include // for fork() #endif #include // for wait() #include #include "base/basictypes.h" #include "base/logging.h" #include using std::string; static const int kMaxCount = 100000; int* g_array[kMaxCount]; // an array of int-vectors static ATTRIBUTE_NOINLINE void Allocate(int start, int end, int size) { for (int i = start; i < end; ++i) { if (i < kMaxCount) g_array[i] = new int[size]; } } static ATTRIBUTE_NOINLINE void Allocate2(int start, int end, int size) { for (int i = start; i < end; ++i) { if (i < kMaxCount) g_array[i] = new int[size]; } } static void Deallocate(int start, int end) { for (int i = start; i < end; ++i) { delete[] g_array[i]; g_array[i] = 0; } } static void TestHeapProfilerStartStopIsRunning() { // If you run this with whole-program heap-profiling on, than // IsHeapProfilerRunning should return true. if (!IsHeapProfilerRunning()) { const char* tmpdir = getenv("TMPDIR"); if (tmpdir == NULL) tmpdir = "/tmp"; mkdir(tmpdir, 0755); // if necessary HeapProfilerStart((string(tmpdir) + "/start_stop").c_str()); CHECK(IsHeapProfilerRunning()); Allocate(0, 40, 100); Deallocate(0, 40); HeapProfilerStop(); CHECK(!IsHeapProfilerRunning()); } } static void TestDumpHeapProfiler() { // If you run this with whole-program heap-profiling on, than // IsHeapProfilerRunning should return true. if (!IsHeapProfilerRunning()) { const char* tmpdir = getenv("TMPDIR"); if (tmpdir == NULL) tmpdir = "/tmp"; mkdir(tmpdir, 0755); // if necessary HeapProfilerStart((string(tmpdir) + "/dump").c_str()); CHECK(IsHeapProfilerRunning()); Allocate(0, 40, 100); Deallocate(0, 40); char* output = GetHeapProfile(); free(output); HeapProfilerStop(); } } int main(int argc, char** argv) { if (argc > 2 || (argc == 2 && argv[1][0] == '-')) { printf("USAGE: %s [number of children to fork]\n", argv[0]); exit(0); } int num_forks = 0; if (argc == 2) { num_forks = atoi(argv[1]); } TestHeapProfilerStartStopIsRunning(); TestDumpHeapProfiler(); Allocate(0, 40, 100); Deallocate(0, 40); Allocate(0, 40, 100); Allocate(0, 40, 100); Allocate2(40, 400, 1000); Allocate2(400, 1000, 10000); Deallocate(0, 1000); Allocate(0, 100, 100000); Deallocate(0, 10); Deallocate(10, 20); Deallocate(90, 100); Deallocate(20, 90); while (num_forks-- > 0) { switch (fork()) { case -1: printf("FORK failed!\n"); return 1; case 0: // child return execl(argv[0], argv[0], NULL); // run child with no args default: wait(NULL); // we'll let the kids run one at a time } } printf("DONE.\n"); return 0; } gperftools-2.4/src/tests/heap-profiler_unittest.sh0000755000000000000000000001267712440704174017436 00000000000000#!/bin/sh # Copyright (c) 2005, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Author: Craig Silverstein # # Runs the heap-profiler unittest and makes sure the profile looks appropriate. # # We run under the assumption that if $HEAP_PROFILER is run with --help, # it prints a usage line of the form # USAGE: [...] # # This is because libtool sometimes turns the 'executable' into a # shell script which runs an actual binary somewhere else. # We expect BINDIR and PPROF_PATH to be set in the environment. # If not, we set them to some reasonable values BINDIR="${BINDIR:-.}" PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}" if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then echo "USAGE: $0 [unittest dir] [path to pprof]" echo " By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH" exit 1 fi HEAP_PROFILER="${1:-$BINDIR/heap-profiler_unittest}" PPROF="${2:-$PPROF_PATH}" TEST_TMPDIR=/tmp/heap_profile_info # It's meaningful to the profiler, so make sure we know its state unset HEAPPROFILE rm -rf "$TEST_TMPDIR" mkdir "$TEST_TMPDIR" || exit 2 num_failures=0 # Given one profile (to check the contents of that profile) or two # profiles (to check the diff between the profiles), and a function # name, verify that the function name takes up at least 90% of the # allocated memory. The function name is actually specified first. VerifyMemFunction() { function="$1" shift # get program name. Note we have to unset HEAPPROFILE so running # help doesn't overwrite existing profiles. exec=`unset HEAPPROFILE; $HEAP_PROFILER --help | awk '{print $2; exit;}'` if [ $# = 2 ]; then [ -f "$1" ] || { echo "Profile not found: $1"; exit 1; } [ -f "$2" ] || { echo "Profile not found: $2"; exit 1; } $PPROF --base="$1" $exec "$2" >"$TEST_TMPDIR/output.pprof" 2>&1 else [ -f "$1" ] || { echo "Profile not found: $1"; exit 1; } $PPROF $exec "$1" >"$TEST_TMPDIR/output.pprof" 2>&1 fi cat "$TEST_TMPDIR/output.pprof" \ | tr -d % | awk '$6 ~ /^'$function'$/ && $2 > 90 {exit 1;}' if [ $? != 1 ]; then echo echo "--- Test failed for $function: didn't account for 90% of executable memory" echo "--- Program output:" cat "$TEST_TMPDIR/output" echo "--- pprof output:" cat "$TEST_TMPDIR/output.pprof" echo "---" num_failures=`expr $num_failures + 1` fi } VerifyOutputContains() { text="$1" if ! grep "$text" "$TEST_TMPDIR/output" >/dev/null 2>&1; then echo "--- Test failed: output does not contain '$text'" echo "--- Program output:" cat "$TEST_TMPDIR/output" echo "---" num_failures=`expr $num_failures + 1` fi } HEAPPROFILE="$TEST_TMPDIR/test" HEAP_PROFILE_INUSE_INTERVAL="10240" # need this to be 10Kb HEAP_PROFILE_ALLOCATION_INTERVAL="$HEAP_PROFILE_INUSE_INTERVAL" HEAP_PROFILE_DEALLOCATION_INTERVAL="$HEAP_PROFILE_INUSE_INTERVAL" export HEAPPROFILE export HEAP_PROFILE_INUSE_INTERVAL export HEAP_PROFILE_ALLOCATION_INTERVAL export HEAP_PROFILE_DEALLOCATION_INTERVAL # We make the unittest run a child process, to test that the child # process doesn't try to write a heap profile as well and step on the # parent's toes. If it does, we expect the parent-test to fail. $HEAP_PROFILER 1 >$TEST_TMPDIR/output 2>&1 # run program, with 1 child proc VerifyMemFunction Allocate2 "$HEAPPROFILE.1329.heap" VerifyMemFunction Allocate "$HEAPPROFILE.1448.heap" "$HEAPPROFILE.1548.heap" # Check the child process got to emit its own profile as well. VerifyMemFunction Allocate2 "$HEAPPROFILE"_*.1329.heap VerifyMemFunction Allocate "$HEAPPROFILE"_*.1448.heap "$HEAPPROFILE"_*.1548.heap # Make sure we logged both about allocating and deallocating memory VerifyOutputContains "62 MB allocated" VerifyOutputContains "62 MB freed" # Now try running without --heap_profile specified, to allow # testing of the HeapProfileStart/Stop functionality. $HEAP_PROFILER >"$TEST_TMPDIR/output2" 2>&1 rm -rf $TMPDIR # clean up if [ $num_failures = 0 ]; then echo "PASS" else echo "Tests finished with $num_failures failures" fi exit $num_failures gperftools-2.4/src/tests/low_level_alloc_unittest.cc0000644000000000000000000001473112440704174020004 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // A test for low_level_alloc.cc #include #include #include "base/low_level_alloc.h" #include "base/logging.h" #include using std::map; // a block of memory obtained from the allocator struct BlockDesc { char *ptr; // pointer to memory int len; // number of bytes int fill; // filled with data starting with this }; // Check that the pattern placed in the block d // by RandomizeBlockDesc is still there. static void CheckBlockDesc(const BlockDesc &d) { for (int i = 0; i != d.len; i++) { CHECK((d.ptr[i] & 0xff) == ((d.fill + i) & 0xff)); } } // Fill the block "*d" with a pattern // starting with a random byte. static void RandomizeBlockDesc(BlockDesc *d) { d->fill = rand() & 0xff; for (int i = 0; i != d->len; i++) { d->ptr[i] = (d->fill + i) & 0xff; } } // Use to indicate to the malloc hooks that // this calls is from LowLevelAlloc. static bool using_low_level_alloc = false; // n times, toss a coin, and based on the outcome // either allocate a new block or deallocate an old block. // New blocks are placed in a map with a random key // and initialized with RandomizeBlockDesc(). // If keys conflict, the older block is freed. // Old blocks are always checked with CheckBlockDesc() // before being freed. At the end of the run, // all remaining allocated blocks are freed. // If use_new_arena is true, use a fresh arena, and then delete it. // If call_malloc_hook is true and user_arena is true, // allocations and deallocations are reported via the MallocHook // interface. static void Test(bool use_new_arena, bool call_malloc_hook, int n) { typedef map AllocMap; AllocMap allocated; AllocMap::iterator it; BlockDesc block_desc; int rnd; LowLevelAlloc::Arena *arena = 0; if (use_new_arena) { int32 flags = call_malloc_hook? LowLevelAlloc::kCallMallocHook : 0; arena = LowLevelAlloc::NewArena(flags, LowLevelAlloc::DefaultArena()); } for (int i = 0; i != n; i++) { if (i != 0 && i % 10000 == 0) { printf("."); fflush(stdout); } switch(rand() & 1) { // toss a coin case 0: // coin came up heads: add a block using_low_level_alloc = true; block_desc.len = rand() & 0x3fff; block_desc.ptr = reinterpret_cast( arena == 0 ? LowLevelAlloc::Alloc(block_desc.len) : LowLevelAlloc::AllocWithArena(block_desc.len, arena)); using_low_level_alloc = false; RandomizeBlockDesc(&block_desc); rnd = rand(); it = allocated.find(rnd); if (it != allocated.end()) { CheckBlockDesc(it->second); using_low_level_alloc = true; LowLevelAlloc::Free(it->second.ptr); using_low_level_alloc = false; it->second = block_desc; } else { allocated[rnd] = block_desc; } break; case 1: // coin came up tails: remove a block it = allocated.begin(); if (it != allocated.end()) { CheckBlockDesc(it->second); using_low_level_alloc = true; LowLevelAlloc::Free(it->second.ptr); using_low_level_alloc = false; allocated.erase(it); } break; } } // remove all remaniing blocks while ((it = allocated.begin()) != allocated.end()) { CheckBlockDesc(it->second); using_low_level_alloc = true; LowLevelAlloc::Free(it->second.ptr); using_low_level_alloc = false; allocated.erase(it); } if (use_new_arena) { CHECK(LowLevelAlloc::DeleteArena(arena)); } } // used for counting allocates and frees static int32 allocates; static int32 frees; // called on each alloc if kCallMallocHook specified static void AllocHook(const void *p, size_t size) { if (using_low_level_alloc) { allocates++; } } // called on each free if kCallMallocHook specified static void FreeHook(const void *p) { if (using_low_level_alloc) { frees++; } } int main(int argc, char *argv[]) { // This is needed by maybe_threads_unittest.sh, which parses argv[0] // to figure out what directory low_level_alloc_unittest is in. if (argc != 1) { fprintf(stderr, "USAGE: %s\n", argv[0]); return 1; } CHECK(MallocHook::AddNewHook(&AllocHook)); CHECK(MallocHook::AddDeleteHook(&FreeHook)); CHECK_EQ(allocates, 0); CHECK_EQ(frees, 0); Test(false, false, 50000); CHECK_NE(allocates, 0); // default arena calls hooks CHECK_NE(frees, 0); for (int i = 0; i != 16; i++) { bool call_hooks = ((i & 1) == 1); allocates = 0; frees = 0; Test(true, call_hooks, 15000); if (call_hooks) { CHECK_GT(allocates, 5000); // arena calls hooks CHECK_GT(frees, 5000); } else { CHECK_EQ(allocates, 0); // arena doesn't call hooks CHECK_EQ(frees, 0); } } printf("\nPASS\n"); CHECK(MallocHook::RemoveNewHook(&AllocHook)); CHECK(MallocHook::RemoveDeleteHook(&FreeHook)); return 0; } gperftools-2.4/src/tests/malloc_extension_c_test.c0000644000000000000000000001352712450132572017444 00000000000000/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*- */ /* Copyright (c) 2009, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Craig Silverstein * * This tests the c shims: malloc_extension_c.h and malloc_hook_c.h. * Mostly, we'll just care that these shims compile under gcc * (*not* g++!) * * NOTE: this is C code, not C++ code! */ #include #include #include /* for size_t */ #include #include #define FAIL(msg) do { \ fprintf(stderr, "FATAL ERROR: %s\n", msg); \ exit(1); \ } while (0) static int g_new_hook_calls = 0; static int g_delete_hook_calls = 0; void TestNewHook(const void* ptr, size_t size) { g_new_hook_calls++; } void TestDeleteHook(const void* ptr) { g_delete_hook_calls++; } static void *forced_malloc(size_t size) { extern void *tc_malloc(size_t); void *rv = tc_malloc(size); if (!rv) { FAIL("malloc is not supposed to fail here"); } return rv; } void TestMallocHook(void) { /* TODO(csilvers): figure out why we get: * E0100 00:00:00.000000 7383 malloc_hook.cc:244] RAW: google_malloc section is missing, thus InHookCaller is broken! */ #if 0 void* result[5]; if (MallocHook_GetCallerStackTrace(result, sizeof(result)/sizeof(*result), 0) < 2) { /* should have this and main */ FAIL("GetCallerStackTrace failed"); } #endif if (!MallocHook_AddNewHook(&TestNewHook)) { FAIL("Failed to add new hook"); } if (!MallocHook_AddDeleteHook(&TestDeleteHook)) { FAIL("Failed to add delete hook"); } free(forced_malloc(10)); free(forced_malloc(20)); if (g_new_hook_calls != 2) { FAIL("Wrong number of calls to the new hook"); } if (g_delete_hook_calls != 2) { FAIL("Wrong number of calls to the delete hook"); } if (!MallocHook_RemoveNewHook(&TestNewHook)) { FAIL("Failed to remove new hook"); } if (!MallocHook_RemoveDeleteHook(&TestDeleteHook)) { FAIL("Failed to remove delete hook"); } free(forced_malloc(10)); free(forced_malloc(20)); if (g_new_hook_calls != 2) { FAIL("Wrong number of calls to the new hook"); } MallocHook_SetNewHook(&TestNewHook); MallocHook_SetDeleteHook(&TestDeleteHook); free(forced_malloc(10)); free(forced_malloc(20)); if (g_new_hook_calls != 4) { FAIL("Wrong number of calls to the singular new hook"); } if (MallocHook_SetNewHook(NULL) == NULL) { FAIL("Failed to set new hook"); } if (MallocHook_SetDeleteHook(NULL) == NULL) { FAIL("Failed to set delete hook"); } } void TestMallocExtension(void) { int blocks; size_t total; int hist[64]; char buffer[200]; char* x = (char*)malloc(10); MallocExtension_VerifyAllMemory(); MallocExtension_VerifyMallocMemory(x); MallocExtension_MallocMemoryStats(&blocks, &total, hist); MallocExtension_GetStats(buffer, sizeof(buffer)); if (!MallocExtension_GetNumericProperty("generic.current_allocated_bytes", &total)) { FAIL("GetNumericProperty failed for generic.current_allocated_bytes"); } if (total < 10) { FAIL("GetNumericProperty had bad return for generic.current_allocated_bytes"); } if (!MallocExtension_GetNumericProperty("generic.current_allocated_bytes", &total)) { FAIL("GetNumericProperty failed for generic.current_allocated_bytes"); } MallocExtension_MarkThreadIdle(); MallocExtension_MarkThreadBusy(); MallocExtension_ReleaseToSystem(1); MallocExtension_ReleaseFreeMemory(); if (MallocExtension_GetEstimatedAllocatedSize(10) < 10) { FAIL("GetEstimatedAllocatedSize returned a bad value (too small)"); } if (MallocExtension_GetAllocatedSize(x) < 10) { FAIL("GetEstimatedAllocatedSize returned a bad value (too small)"); } if (MallocExtension_GetOwnership(x) != MallocExtension_kOwned) { FAIL("DidAllocatePtr returned a bad value (kNotOwned)"); } /* TODO(csilvers): this relies on undocumented behavior that GetOwnership works on stack-allocated variables. Use a better test. */ if (MallocExtension_GetOwnership(hist) != MallocExtension_kNotOwned) { FAIL("DidAllocatePtr returned a bad value (kOwned)"); } free(x); } int main(int argc, char** argv) { TestMallocHook(); TestMallocExtension(); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/malloc_extension_test.cc0000644000000000000000000001036112440704174017300 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Simple test of malloc_extension. Includes test of C shims. #include "config_for_unittests.h" #include #include #include "base/logging.h" #include #include int main(int argc, char** argv) { void* a = malloc(1000); size_t cxx_bytes_used, c_bytes_used; ASSERT_TRUE(MallocExtension::instance()->GetNumericProperty( "generic.current_allocated_bytes", &cxx_bytes_used)); ASSERT_TRUE(MallocExtension_GetNumericProperty( "generic.current_allocated_bytes", &c_bytes_used)); ASSERT_GT(cxx_bytes_used, 1000); ASSERT_EQ(cxx_bytes_used, c_bytes_used); ASSERT_TRUE(MallocExtension::instance()->VerifyAllMemory()); ASSERT_TRUE(MallocExtension_VerifyAllMemory()); ASSERT_EQ(MallocExtension::kOwned, MallocExtension::instance()->GetOwnership(a)); // TODO(csilvers): this relies on undocumented behavior that // GetOwnership works on stack-allocated variables. Use a better test. ASSERT_EQ(MallocExtension::kNotOwned, MallocExtension::instance()->GetOwnership(&cxx_bytes_used)); ASSERT_EQ(MallocExtension::kNotOwned, MallocExtension::instance()->GetOwnership(NULL)); ASSERT_GE(MallocExtension::instance()->GetAllocatedSize(a), 1000); // This is just a sanity check. If we allocated too much, tcmalloc is broken ASSERT_LE(MallocExtension::instance()->GetAllocatedSize(a), 5000); ASSERT_GE(MallocExtension::instance()->GetEstimatedAllocatedSize(1000), 1000); for (int i = 0; i < 10; ++i) { void *p = malloc(i); ASSERT_GE(MallocExtension::instance()->GetAllocatedSize(p), MallocExtension::instance()->GetEstimatedAllocatedSize(i)); free(p); } // Check the c-shim version too. ASSERT_EQ(MallocExtension_kOwned, MallocExtension_GetOwnership(a)); ASSERT_EQ(MallocExtension_kNotOwned, MallocExtension_GetOwnership(&cxx_bytes_used)); ASSERT_EQ(MallocExtension_kNotOwned, MallocExtension_GetOwnership(NULL)); ASSERT_GE(MallocExtension_GetAllocatedSize(a), 1000); ASSERT_LE(MallocExtension_GetAllocatedSize(a), 5000); ASSERT_GE(MallocExtension_GetEstimatedAllocatedSize(1000), 1000); free(a); // Verify that the .cc file and .h file have the same enum values. ASSERT_EQ(static_cast(MallocExtension::kUnknownOwnership), static_cast(MallocExtension_kUnknownOwnership)); ASSERT_EQ(static_cast(MallocExtension::kOwned), static_cast(MallocExtension_kOwned)); ASSERT_EQ(static_cast(MallocExtension::kNotOwned), static_cast(MallocExtension_kNotOwned)); printf("DONE\n"); return 0; } gperftools-2.4/src/tests/malloc_hook_test.cc0000644000000000000000000002757412440704174016242 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // ---- // Author: llib@google.com (Bill Clarke) #include "config_for_unittests.h" #include #include #ifdef HAVE_MMAP #include #endif #ifdef HAVE_UNISTD_H #include // for sleep() #endif #include #include #include #include #include "malloc_hook-inl.h" #include "base/logging.h" #include "base/simple_mutex.h" #include "base/sysinfo.h" #include "tests/testutil.h" // On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old // form of the name instead. #ifndef MAP_ANONYMOUS # define MAP_ANONYMOUS MAP_ANON #endif namespace { using std::string; using std::vector; vector g_testlist; // the tests to run #define TEST(a, b) \ struct Test_##a##_##b { \ Test_##a##_##b() { g_testlist.push_back(&Run); } \ static void Run(); \ }; \ static Test_##a##_##b g_test_##a##_##b; \ void Test_##a##_##b::Run() static int RUN_ALL_TESTS() { vector::const_iterator it; for (it = g_testlist.begin(); it != g_testlist.end(); ++it) { (*it)(); // The test will error-exit if there's a problem. } fprintf(stderr, "\nPassed %d tests\n\nPASS\n", static_cast(g_testlist.size())); return 0; } void Sleep(int seconds) { #ifdef _MSC_VER _sleep(seconds * 1000); // Windows's _sleep takes milliseconds argument #else sleep(seconds); #endif } using std::min; using base::internal::kHookListMaxValues; // Since HookList is a template and is defined in malloc_hook.cc, we can only // use an instantiation of it from malloc_hook.cc. We then reinterpret those // values as integers for testing. typedef base::internal::HookList TestHookList; int TestHookList_Traverse(const TestHookList& list, uintptr_t* output_array, int n) { MallocHook::NewHook values_as_hooks[kHookListMaxValues]; int result = list.Traverse(values_as_hooks, min(n, kHookListMaxValues)); for (int i = 0; i < result; ++i) { output_array[i] = reinterpret_cast(*values_as_hooks[i]); } return result; } bool TestHookList_Add(TestHookList* list, int val) { return list->Add(reinterpret_cast(val)); } bool TestHookList_Remove(TestHookList* list, int val) { return list->Remove(reinterpret_cast(val)); } // Note that this is almost the same as INIT_HOOK_LIST in malloc_hook.cc without // the cast. #define INIT_HOOK_LIST(initial_value) { 1, { initial_value } } TEST(HookListTest, InitialValueExists) { TestHookList list = INIT_HOOK_LIST(69); uintptr_t values[2] = { 0, 0 }; EXPECT_EQ(1, TestHookList_Traverse(list, values, 2)); EXPECT_EQ(69, values[0]); EXPECT_EQ(1, list.priv_end); } TEST(HookListTest, CanRemoveInitialValue) { TestHookList list = INIT_HOOK_LIST(69); ASSERT_TRUE(TestHookList_Remove(&list, 69)); EXPECT_EQ(0, list.priv_end); uintptr_t values[2] = { 0, 0 }; EXPECT_EQ(0, TestHookList_Traverse(list, values, 2)); } TEST(HookListTest, AddAppends) { TestHookList list = INIT_HOOK_LIST(69); ASSERT_TRUE(TestHookList_Add(&list, 42)); EXPECT_EQ(2, list.priv_end); uintptr_t values[2] = { 0, 0 }; EXPECT_EQ(2, TestHookList_Traverse(list, values, 2)); EXPECT_EQ(69, values[0]); EXPECT_EQ(42, values[1]); } TEST(HookListTest, RemoveWorksAndWillClearSize) { TestHookList list = INIT_HOOK_LIST(69); ASSERT_TRUE(TestHookList_Add(&list, 42)); ASSERT_TRUE(TestHookList_Remove(&list, 69)); EXPECT_EQ(2, list.priv_end); uintptr_t values[2] = { 0, 0 }; EXPECT_EQ(1, TestHookList_Traverse(list, values, 2)); EXPECT_EQ(42, values[0]); ASSERT_TRUE(TestHookList_Remove(&list, 42)); EXPECT_EQ(0, list.priv_end); EXPECT_EQ(0, TestHookList_Traverse(list, values, 2)); } TEST(HookListTest, AddPrependsAfterRemove) { TestHookList list = INIT_HOOK_LIST(69); ASSERT_TRUE(TestHookList_Add(&list, 42)); ASSERT_TRUE(TestHookList_Remove(&list, 69)); EXPECT_EQ(2, list.priv_end); ASSERT_TRUE(TestHookList_Add(&list, 7)); EXPECT_EQ(2, list.priv_end); uintptr_t values[2] = { 0, 0 }; EXPECT_EQ(2, TestHookList_Traverse(list, values, 2)); EXPECT_EQ(7, values[0]); EXPECT_EQ(42, values[1]); } TEST(HookListTest, InvalidAddRejected) { TestHookList list = INIT_HOOK_LIST(69); EXPECT_FALSE(TestHookList_Add(&list, 0)); uintptr_t values[2] = { 0, 0 }; EXPECT_EQ(1, TestHookList_Traverse(list, values, 2)); EXPECT_EQ(69, values[0]); EXPECT_EQ(1, list.priv_end); } TEST(HookListTest, FillUpTheList) { TestHookList list = INIT_HOOK_LIST(69); int num_inserts = 0; while (TestHookList_Add(&list, ++num_inserts)) ; EXPECT_EQ(kHookListMaxValues, num_inserts); EXPECT_EQ(kHookListMaxValues, list.priv_end); uintptr_t values[kHookListMaxValues + 1]; EXPECT_EQ(kHookListMaxValues, TestHookList_Traverse(list, values, kHookListMaxValues)); EXPECT_EQ(69, values[0]); for (int i = 1; i < kHookListMaxValues; ++i) { EXPECT_EQ(i, values[i]); } } void MultithreadedTestThread(TestHookList* list, int shift, int thread_num) { string message; char buf[64]; for (int i = 1; i < 1000; ++i) { // In each loop, we insert a unique value, check it exists, remove it, and // check it doesn't exist. We also record some stats to log at the end of // each thread. Each insertion location and the length of the list is // non-deterministic (except for the very first one, over all threads, and // after the very last one the list should be empty). int value = (i << shift) + thread_num; EXPECT_TRUE(TestHookList_Add(list, value)); sched_yield(); // Ensure some more interleaving. uintptr_t values[kHookListMaxValues + 1]; int num_values = TestHookList_Traverse(*list, values, kHookListMaxValues); EXPECT_LT(0, num_values); int value_index; for (value_index = 0; value_index < num_values && values[value_index] != value; ++value_index) ; EXPECT_LT(value_index, num_values); // Should have found value. snprintf(buf, sizeof(buf), "[%d/%d; ", value_index, num_values); message += buf; sched_yield(); EXPECT_TRUE(TestHookList_Remove(list, value)); sched_yield(); num_values = TestHookList_Traverse(*list, values, kHookListMaxValues); for (value_index = 0; value_index < num_values && values[value_index] != value; ++value_index) ; EXPECT_EQ(value_index, num_values); // Should not have found value. snprintf(buf, sizeof(buf), "%d]", num_values); message += buf; sched_yield(); } fprintf(stderr, "thread %d: %s\n", thread_num, message.c_str()); } static volatile int num_threads_remaining; static TestHookList list = INIT_HOOK_LIST(69); static Mutex threadcount_lock; void MultithreadedTestThreadRunner(int thread_num) { // Wait for all threads to start running. { MutexLock ml(&threadcount_lock); assert(num_threads_remaining > 0); --num_threads_remaining; // We should use condvars and the like, but for this test, we'll // go simple and busy-wait. while (num_threads_remaining > 0) { threadcount_lock.Unlock(); Sleep(1); threadcount_lock.Lock(); } } // shift is the smallest number such that (1< kHookListMaxValues int shift = 0; for (int i = kHookListMaxValues; i > 0; i >>= 1) shift += 1; MultithreadedTestThread(&list, shift, thread_num); } TEST(HookListTest, MultithreadedTest) { ASSERT_TRUE(TestHookList_Remove(&list, 69)); ASSERT_EQ(0, list.priv_end); // Run kHookListMaxValues thread, each running MultithreadedTestThread. // First, we need to set up the rest of the globals. num_threads_remaining = kHookListMaxValues; // a global var RunManyThreadsWithId(&MultithreadedTestThreadRunner, num_threads_remaining, 1 << 15); uintptr_t values[kHookListMaxValues + 1]; EXPECT_EQ(0, TestHookList_Traverse(list, values, kHookListMaxValues)); EXPECT_EQ(0, list.priv_end); } // We only do mmap-hooking on (some) linux systems. #if defined(HAVE_MMAP) && defined(__linux) && \ (defined(__i386__) || defined(__x86_64__) || defined(__PPC__)) int mmap_calls = 0; int mmap_matching_calls = 0; int munmap_calls = 0; int munmap_matching_calls = 0; const int kMmapMagicFd = 1; void* const kMmapMagicPointer = reinterpret_cast(1); int MmapReplacement(const void* start, size_t size, int protection, int flags, int fd, off_t offset, void** result) { ++mmap_calls; if (fd == kMmapMagicFd) { ++mmap_matching_calls; *result = kMmapMagicPointer; return true; } return false; } int MunmapReplacement(const void* ptr, size_t size, int* result) { ++munmap_calls; if (ptr == kMmapMagicPointer) { ++munmap_matching_calls; *result = 0; return true; } return false; } TEST(MallocMookTest, MmapReplacements) { mmap_calls = mmap_matching_calls = munmap_calls = munmap_matching_calls = 0; MallocHook::SetMmapReplacement(&MmapReplacement); MallocHook::SetMunmapReplacement(&MunmapReplacement); EXPECT_EQ(kMmapMagicPointer, mmap(NULL, 1, PROT_READ, MAP_PRIVATE, kMmapMagicFd, 0)); EXPECT_EQ(1, mmap_matching_calls); char* ptr = reinterpret_cast( mmap(NULL, 1, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)); EXPECT_EQ(2, mmap_calls); EXPECT_EQ(1, mmap_matching_calls); ASSERT_NE(MAP_FAILED, ptr); *ptr = 'a'; EXPECT_EQ(0, munmap(kMmapMagicPointer, 1)); EXPECT_EQ(1, munmap_calls); EXPECT_EQ(1, munmap_matching_calls); EXPECT_EQ(0, munmap(ptr, 1)); EXPECT_EQ(2, munmap_calls); EXPECT_EQ(1, munmap_matching_calls); // The DEATH test below is flaky, because we've just munmapped the memory, // making it available for mmap()ing again. There is no guarantee that it // will stay unmapped, and in fact it gets reused ~10% of the time. // It the area is reused, then not only we don't die, but we also corrupt // whoever owns that memory now. // EXPECT_DEATH(*ptr = 'a', "SIGSEGV"); } #endif // #ifdef HAVE_MMAP && linux && ... } // namespace int main(int argc, char** argv) { return RUN_ALL_TESTS(); } gperftools-2.4/src/tests/testutil.h0000644000000000000000000000565212440704174014424 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein #ifndef TCMALLOC_TOOLS_TESTUTIL_H_ #define TCMALLOC_TOOLS_TESTUTIL_H_ // Run a function in a thread of its own and wait for it to finish. // The function you pass in must have the signature // void MyFunction(); extern "C" void RunThread(void (*fn)()); // Run a function X times, in X threads, and wait for them all to finish. // The function you pass in must have the signature // void MyFunction(); extern "C" void RunManyThreads(void (*fn)(), int count); // The 'advanced' version: run a function X times, in X threads, and // wait for them all to finish. Give them all the specified stack-size. // (If you're curious why this takes a stacksize and the others don't, // it's because the one client of this fn wanted to specify stacksize. :-) ) // The function you pass in must have the signature // void MyFunction(int idx); // where idx is the index of the thread (which of the X threads this is). extern "C" void RunManyThreadsWithId(void (*fn)(int), int count, int stacksize); // When compiled 64-bit and run on systems with swap several unittests will end // up trying to consume all of RAM+swap, and that can take quite some time. By // limiting the address-space size we get sufficient coverage without blowing // out job limits. void SetTestResourceLimit(); #endif // TCMALLOC_TOOLS_TESTUTIL_H_ gperftools-2.4/src/tests/testutil.cc0000644000000000000000000001706712440704174014565 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // A few routines that are useful for multiple tests in this directory. #include "config_for_unittests.h" #include // for NULL, abort() // On FreeBSD, if you #include , you have to get stdint first. #ifdef HAVE_STDINT_H #include #endif #ifdef HAVE_SYS_RESOURCE_H #include #endif #include "tests/testutil.h" // When compiled 64-bit and run on systems with swap several unittests will end // up trying to consume all of RAM+swap, and that can take quite some time. By // limiting the address-space size we get sufficient coverage without blowing // out job limits. void SetTestResourceLimit() { #ifdef HAVE_SYS_RESOURCE_H // The actual resource we need to set varies depending on which flavour of // unix. On Linux we need RLIMIT_AS because that covers the use of mmap. // Otherwise hopefully RLIMIT_RSS is good enough. (Unfortunately 64-bit // and 32-bit headers disagree on the type of these constants!) #ifdef RLIMIT_AS #define USE_RESOURCE RLIMIT_AS #else #define USE_RESOURCE RLIMIT_RSS #endif // Restrict the test to 1GiB, which should fit comfortably well on both // 32-bit and 64-bit hosts, and executes in ~1s. const rlim_t kMaxMem = 1<<30; struct rlimit rlim; if (getrlimit(USE_RESOURCE, &rlim) == 0) { if (rlim.rlim_cur == RLIM_INFINITY || rlim.rlim_cur > kMaxMem) { rlim.rlim_cur = kMaxMem; setrlimit(USE_RESOURCE, &rlim); // ignore result } } #endif /* HAVE_SYS_RESOURCE_H */ } struct FunctionAndId { void (*ptr_to_function)(int); int id; }; #if defined(NO_THREADS) || !(defined(HAVE_PTHREAD) || defined(_WIN32)) extern "C" void RunThread(void (*fn)()) { (*fn)(); } extern "C" void RunManyThreads(void (*fn)(), int count) { // I guess the best we can do is run fn sequentially, 'count' times for (int i = 0; i < count; i++) (*fn)(); } extern "C" void RunManyThreadsWithId(void (*fn)(int), int count, int) { for (int i = 0; i < count; i++) (*fn)(i); // stacksize doesn't make sense in a non-threaded context } #elif defined(_WIN32) #ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN /* We always want minimal includes */ #endif #include extern "C" { // This helper function has the signature that pthread_create wants. DWORD WINAPI RunFunctionInThread(LPVOID ptr_to_ptr_to_fn) { (**static_cast(ptr_to_ptr_to_fn))(); // runs fn return 0; } DWORD WINAPI RunFunctionInThreadWithId(LPVOID ptr_to_fnid) { FunctionAndId* fn_and_id = static_cast(ptr_to_fnid); (*fn_and_id->ptr_to_function)(fn_and_id->id); // runs fn return 0; } void RunManyThreads(void (*fn)(), int count) { DWORD dummy; HANDLE* hThread = new HANDLE[count]; for (int i = 0; i < count; i++) { hThread[i] = CreateThread(NULL, 0, RunFunctionInThread, &fn, 0, &dummy); if (hThread[i] == NULL) ExitProcess(i); } WaitForMultipleObjects(count, hThread, TRUE, INFINITE); for (int i = 0; i < count; i++) { CloseHandle(hThread[i]); } delete[] hThread; } void RunThread(void (*fn)()) { RunManyThreads(fn, 1); } void RunManyThreadsWithId(void (*fn)(int), int count, int stacksize) { DWORD dummy; HANDLE* hThread = new HANDLE[count]; FunctionAndId* fn_and_ids = new FunctionAndId[count]; for (int i = 0; i < count; i++) { fn_and_ids[i].ptr_to_function = fn; fn_and_ids[i].id = i; hThread[i] = CreateThread(NULL, stacksize, RunFunctionInThreadWithId, &fn_and_ids[i], 0, &dummy); if (hThread[i] == NULL) ExitProcess(i); } WaitForMultipleObjects(count, hThread, TRUE, INFINITE); for (int i = 0; i < count; i++) { CloseHandle(hThread[i]); } delete[] fn_and_ids; delete[] hThread; } } #else // not NO_THREADS, not !HAVE_PTHREAD, not _WIN32 #include #define SAFE_PTHREAD(fncall) do { if ((fncall) != 0) abort(); } while (0) extern "C" { // This helper function has the signature that pthread_create wants. static void* RunFunctionInThread(void *ptr_to_ptr_to_fn) { (**static_cast(ptr_to_ptr_to_fn))(); // runs fn return NULL; } static void* RunFunctionInThreadWithId(void *ptr_to_fnid) { FunctionAndId* fn_and_id = static_cast(ptr_to_fnid); (*fn_and_id->ptr_to_function)(fn_and_id->id); // runs fn return NULL; } // Run a function in a thread of its own and wait for it to finish. // This is useful for tcmalloc testing, because each thread is // handled separately in tcmalloc, so there's interesting stuff to // test even if the threads are not running concurrently. void RunThread(void (*fn)()) { pthread_t thr; // Even though fn is on the stack, it's safe to pass a pointer to it, // because we pthread_join immediately (ie, before RunInThread exits). SAFE_PTHREAD(pthread_create(&thr, NULL, RunFunctionInThread, &fn)); SAFE_PTHREAD(pthread_join(thr, NULL)); } void RunManyThreads(void (*fn)(), int count) { pthread_t* thr = new pthread_t[count]; for (int i = 0; i < count; i++) { SAFE_PTHREAD(pthread_create(&thr[i], NULL, RunFunctionInThread, &fn)); } for (int i = 0; i < count; i++) { SAFE_PTHREAD(pthread_join(thr[i], NULL)); } delete[] thr; } void RunManyThreadsWithId(void (*fn)(int), int count, int stacksize) { pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, stacksize); pthread_t* thr = new pthread_t[count]; FunctionAndId* fn_and_ids = new FunctionAndId[count]; for (int i = 0; i < count; i++) { fn_and_ids[i].ptr_to_function = fn; fn_and_ids[i].id = i; SAFE_PTHREAD(pthread_create(&thr[i], &attr, RunFunctionInThreadWithId, &fn_and_ids[i])); } for (int i = 0; i < count; i++) { SAFE_PTHREAD(pthread_join(thr[i], NULL)); } delete[] fn_and_ids; delete[] thr; pthread_attr_destroy(&attr); } } #endif gperftools-2.4/src/tests/markidle_unittest.cc0000644000000000000000000000731112440704174016426 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2003, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // MallocExtension::MarkThreadIdle() testing #include #include "config_for_unittests.h" #include "base/logging.h" #include #include "tests/testutil.h" // for RunThread() // Helper routine to do lots of allocations static void TestAllocation() { static const int kNum = 100; void* ptr[kNum]; for (int size = 8; size <= 65536; size*=2) { for (int i = 0; i < kNum; i++) { ptr[i] = malloc(size); } for (int i = 0; i < kNum; i++) { free(ptr[i]); } } } // Routine that does a bunch of MarkThreadIdle() calls in sequence // without any intervening allocations static void MultipleIdleCalls() { for (int i = 0; i < 4; i++) { MallocExtension::instance()->MarkThreadIdle(); } } // Routine that does a bunch of MarkThreadIdle() calls in sequence // with intervening allocations static void MultipleIdleNonIdlePhases() { for (int i = 0; i < 4; i++) { TestAllocation(); MallocExtension::instance()->MarkThreadIdle(); } } // Get current thread cache usage static size_t GetTotalThreadCacheSize() { size_t result; CHECK(MallocExtension::instance()->GetNumericProperty( "tcmalloc.current_total_thread_cache_bytes", &result)); return result; } // Check that MarkThreadIdle() actually reduces the amount // of per-thread memory. static void TestIdleUsage() { const size_t original = GetTotalThreadCacheSize(); TestAllocation(); const size_t post_allocation = GetTotalThreadCacheSize(); CHECK_GT(post_allocation, original); MallocExtension::instance()->MarkThreadIdle(); const size_t post_idle = GetTotalThreadCacheSize(); CHECK_LE(post_idle, original); // Log after testing because logging can allocate heap memory. VLOG(0, "Original usage: %" PRIuS "\n", original); VLOG(0, "Post allocation: %" PRIuS "\n", post_allocation); VLOG(0, "Post idle: %" PRIuS "\n", post_idle); } int main(int argc, char** argv) { RunThread(&TestIdleUsage); RunThread(&TestAllocation); RunThread(&MultipleIdleCalls); RunThread(&MultipleIdleNonIdlePhases); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/maybe_threads_unittest.sh0000755000000000000000000000656112371745612017510 00000000000000#!/bin/sh # Copyright (c) 2007, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Author: Craig Silverstein # # maybe_threads.cc was written to allow LD_PRELOAD=libtcmalloc.so to # work even on binaries that were not linked with pthreads. This # unittest tests that, by running low_level_alloc_unittest with an # LD_PRELOAD. (low_level_alloc_unittest was chosen because it doesn't # link in tcmalloc.) # # We assume all the .so files are in the same directory as both # addressmap_unittest and profiler1_unittest. The reason we need # profiler1_unittest is because it's instrumented to show the directory # it's "really" in when run without any args. In practice this will either # be BINDIR, or, when using libtool, BINDIR/.lib. # We expect BINDIR to be set in the environment. # If not, we set them to some reasonable values. BINDIR="${BINDIR:-.}" if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then echo "USAGE: $0 [unittest dir]" echo " By default, unittest_dir=$BINDIR" exit 1 fi UNITTEST_DIR=${1:-$BINDIR} # Figure out the "real" unittest directory. Also holds the .so files. UNITTEST_DIR=`$UNITTEST_DIR/low_level_alloc_unittest --help 2>&1 \ | awk '{print $2; exit;}' \ | xargs dirname` # Figure out where libtcmalloc lives. It should be in UNITTEST_DIR, # but with libtool it might be in a subdir. if [ -r "$UNITTEST_DIR/libtcmalloc_minimal.so" ]; then LIB_PATH="$UNITTEST_DIR/libtcmalloc_minimal.so" elif [ -r "$UNITTEST_DIR/.libs/libtcmalloc_minimal.so" ]; then LIB_PATH="$UNITTEST_DIR/.libs/libtcmalloc_minimal.so" elif [ -r "$UNITTEST_DIR/libtcmalloc_minimal.dylib" ]; then # for os x LIB_PATH="$UNITTEST_DIR/libtcmalloc_minimal.dylib" elif [ -r "$UNITTEST_DIR/.libs/libtcmalloc_minimal.dylib" ]; then LIB_PATH="$UNITTEST_DIR/.libs/libtcmalloc_minimal.dylib" else echo "Cannot run $0: cannot find libtcmalloc_minimal.so" exit 2 fi LD_PRELOAD="$LIB_PATH" $UNITTEST_DIR/low_level_alloc_unittest gperftools-2.4/src/tests/memalign_unittest.cc0000644000000000000000000001535412440704174016435 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2004, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Check memalign related routines. // // We can't really do a huge amount of checking, but at the very // least, the following code checks that return values are properly // aligned, and that writing into the objects works. #include "config_for_unittests.h" // Complicated ordering requirements. tcmalloc.h defines (indirectly) // _POSIX_C_SOURCE, which it needs so stdlib.h defines posix_memalign. // unistd.h, on the other hand, requires _POSIX_C_SOURCE to be unset, // at least on Mac OS X, in order to define getpagesize. The solution // is to #include unistd.h first. This is safe because unistd.h // doesn't sub-include stdlib.h, so we'll still get posix_memalign // when we #include stdlib.h. Blah. #ifdef HAVE_UNISTD_H #include // for getpagesize() #endif #include "tcmalloc.h" // must come early, to pick up posix_memalign #include #include // defines posix_memalign #include // for the printf at the end #ifdef HAVE_STDINT_H #include // for uintptr_t #endif #ifdef HAVE_UNISTD_H #include // for getpagesize() #endif // Malloc can be in several places on older versions of OS X. #if defined(HAVE_MALLOC_H) #include // for memalign() and valloc() #elif defined(HAVE_MALLOC_MALLOC_H) #include #elif defined(HAVE_SYS_MALLOC_H) #include #endif #include "base/basictypes.h" #include "base/logging.h" #include "tests/testutil.h" // Return the next interesting size/delta to check. Returns -1 if no more. static int NextSize(int size) { if (size < 100) { return size+1; } else if (size < 1048576) { // Find next power of two int power = 1; while (power < size) { power <<= 1; } // Yield (power-1, power, power+1) if (size < power-1) { return power-1; } else if (size == power-1) { return power; } else { assert(size == power); return power+1; } } else { return -1; } } // Shortform for cast static uintptr_t Number(void* p) { return reinterpret_cast(p); } // Check alignment static void CheckAlignment(void* p, int align) { if ((Number(p) & (align-1)) != 0) LOG(FATAL, "wrong alignment; wanted 0x%x; got %p\n", align, p); } // Fill a buffer of the specified size with a predetermined pattern static void Fill(void* p, int n, char seed) { unsigned char* buffer = reinterpret_cast(p); for (int i = 0; i < n; i++) { buffer[i] = ((seed + i) & 0xff); } } // Check that the specified buffer has the predetermined pattern // generated by Fill() static bool Valid(const void* p, int n, char seed) { const unsigned char* buffer = reinterpret_cast(p); for (int i = 0; i < n; i++) { if (buffer[i] != ((seed + i) & 0xff)) { return false; } } return true; } int main(int argc, char** argv) { SetTestResourceLimit(); // Try allocating data with a bunch of alignments and sizes for (int a = 1; a < 1048576; a *= 2) { for (int s = 0; s != -1; s = NextSize(s)) { void* ptr = memalign(a, s); CheckAlignment(ptr, a); Fill(ptr, s, 'x'); CHECK(Valid(ptr, s, 'x')); free(ptr); if ((a >= sizeof(void*)) && ((a & (a-1)) == 0)) { CHECK(posix_memalign(&ptr, a, s) == 0); CheckAlignment(ptr, a); Fill(ptr, s, 'y'); CHECK(Valid(ptr, s, 'y')); free(ptr); } } } { // Check various corner cases void* p1 = memalign(1<<20, 1<<19); void* p2 = memalign(1<<19, 1<<19); void* p3 = memalign(1<<21, 1<<19); CheckAlignment(p1, 1<<20); CheckAlignment(p2, 1<<19); CheckAlignment(p3, 1<<21); Fill(p1, 1<<19, 'a'); Fill(p2, 1<<19, 'b'); Fill(p3, 1<<19, 'c'); CHECK(Valid(p1, 1<<19, 'a')); CHECK(Valid(p2, 1<<19, 'b')); CHECK(Valid(p3, 1<<19, 'c')); free(p1); free(p2); free(p3); } { // posix_memalign void* ptr; CHECK(posix_memalign(&ptr, 0, 1) == EINVAL); CHECK(posix_memalign(&ptr, sizeof(void*)/2, 1) == EINVAL); CHECK(posix_memalign(&ptr, sizeof(void*)+1, 1) == EINVAL); CHECK(posix_memalign(&ptr, 4097, 1) == EINVAL); // Grab some memory so that the big allocation below will definitely fail. void* p_small = malloc(4*1048576); CHECK(p_small != NULL); // Make sure overflow is returned as ENOMEM const size_t zero = 0; static const size_t kMinusNTimes = 10; for ( size_t i = 1; i < kMinusNTimes; ++i ) { int r = posix_memalign(&ptr, 1024, zero - i); CHECK(r == ENOMEM); } free(p_small); } const int pagesize = getpagesize(); { // valloc for (int s = 0; s != -1; s = NextSize(s)) { void* p = valloc(s); CheckAlignment(p, pagesize); Fill(p, s, 'v'); CHECK(Valid(p, s, 'v')); free(p); } } { // pvalloc for (int s = 0; s != -1; s = NextSize(s)) { void* p = pvalloc(s); CheckAlignment(p, pagesize); int alloc_needed = ((s + pagesize - 1) / pagesize) * pagesize; Fill(p, alloc_needed, 'x'); CHECK(Valid(p, alloc_needed, 'x')); free(p); } } printf("PASS\n"); return 0; } gperftools-2.4/src/tests/packed-cache_test.cc0000644000000000000000000000463612440704174016235 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Geoff Pike #include #include "base/logging.h" #include "packed-cache-inl.h" static const int kHashbits = PackedCache<64, uint64>::kHashbits; // A basic sanity test. void PackedCacheTest_basic() { PackedCache<32, uint32> cache(0); CHECK_EQ(cache.GetOrDefault(0, 1), 0); cache.Put(0, 17); CHECK(cache.Has(0)); CHECK_EQ(cache.GetOrDefault(0, 1), 17); cache.Put(19, 99); CHECK(cache.Has(0) && cache.Has(19)); CHECK_EQ(cache.GetOrDefault(0, 1), 17); CHECK_EQ(cache.GetOrDefault(19, 1), 99); // Knock <0, 17> out by using a conflicting key. cache.Put(1 << kHashbits, 22); CHECK(!cache.Has(0)); CHECK_EQ(cache.GetOrDefault(0, 1), 1); CHECK_EQ(cache.GetOrDefault(1 << kHashbits, 1), 22); } int main(int argc, char **argv) { PackedCacheTest_basic(); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/page_heap_test.cc0000644000000000000000000001045212440704174015647 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright 2009 Google Inc. All Rights Reserved. // Author: fikes@google.com (Andrew Fikes) // // Use of this source code is governed by a BSD-style license that can // be found in the LICENSE file. #include "config_for_unittests.h" #include "page_heap.h" #include "system-alloc.h" #include #include "base/logging.h" #include "common.h" DECLARE_int64(tcmalloc_heap_limit_mb); namespace { // The system will only release memory if the block size is equal or hight than // system page size. static bool HaveSystemRelease = TCMalloc_SystemRelease( TCMalloc_SystemAlloc(getpagesize(), NULL, 0), getpagesize()); static void CheckStats(const tcmalloc::PageHeap* ph, uint64_t system_pages, uint64_t free_pages, uint64_t unmapped_pages) { tcmalloc::PageHeap::Stats stats = ph->stats(); if (!HaveSystemRelease) { free_pages += unmapped_pages; unmapped_pages = 0; } EXPECT_EQ(system_pages, stats.system_bytes >> kPageShift); EXPECT_EQ(free_pages, stats.free_bytes >> kPageShift); EXPECT_EQ(unmapped_pages, stats.unmapped_bytes >> kPageShift); } static void TestPageHeap_Stats() { tcmalloc::PageHeap* ph = new tcmalloc::PageHeap(); // Empty page heap CheckStats(ph, 0, 0, 0); // Allocate a span 's1' tcmalloc::Span* s1 = ph->New(256); CheckStats(ph, 256, 0, 0); // Split span 's1' into 's1', 's2'. Delete 's2' tcmalloc::Span* s2 = ph->Split(s1, 128); ph->Delete(s2); CheckStats(ph, 256, 128, 0); // Unmap deleted span 's2' ph->ReleaseAtLeastNPages(1); CheckStats(ph, 256, 0, 128); // Delete span 's1' ph->Delete(s1); CheckStats(ph, 256, 128, 128); delete ph; } static void TestPageHeap_Limit() { tcmalloc::PageHeap* ph = new tcmalloc::PageHeap(); CHECK_EQ(kMaxPages, 1 << (20 - kPageShift)); // We do not know much is taken from the system for other purposes, // so we detect the proper limit: { FLAGS_tcmalloc_heap_limit_mb = 1; tcmalloc::Span* s = NULL; while((s = ph->New(kMaxPages)) == NULL) { FLAGS_tcmalloc_heap_limit_mb++; } FLAGS_tcmalloc_heap_limit_mb += 9; ph->Delete(s); // We are [10, 11) mb from the limit now. } // Test AllocLarge and GrowHeap first: { tcmalloc::Span * spans[10]; for (int i=0; i<10; ++i) { spans[i] = ph->New(kMaxPages); EXPECT_NE(spans[i], NULL); } EXPECT_EQ(ph->New(kMaxPages), NULL); for (int i=0; i<10; i += 2) { ph->Delete(spans[i]); } tcmalloc::Span *defragmented = ph->New(5 * kMaxPages); if (HaveSystemRelease) { // EnsureLimit should release deleted normal spans EXPECT_NE(defragmented, NULL); EXPECT_TRUE(ph->CheckExpensive()); ph->Delete(defragmented); } else { EXPECT_EQ(defragmented, NULL); EXPECT_TRUE(ph->CheckExpensive()); } for (int i=1; i<10; i += 2) { ph->Delete(spans[i]); } } // Once again, testing small lists this time (twice smaller spans): { tcmalloc::Span * spans[20]; for (int i=0; i<20; ++i) { spans[i] = ph->New(kMaxPages >> 1); EXPECT_NE(spans[i], NULL); } // one more half size allocation may be possible: tcmalloc::Span * lastHalf = ph->New(kMaxPages >> 1); EXPECT_EQ(ph->New(kMaxPages >> 1), NULL); for (int i=0; i<20; i += 2) { ph->Delete(spans[i]); } for(Length len = kMaxPages >> 2; len < 5 * kMaxPages; len = len << 1) { if(len <= kMaxPages >> 1 || HaveSystemRelease) { tcmalloc::Span *s = ph->New(len); EXPECT_NE(s, NULL); ph->Delete(s); } } EXPECT_TRUE(ph->CheckExpensive()); for (int i=1; i<20; i += 2) { ph->Delete(spans[i]); } if (lastHalf != NULL) { ph->Delete(lastHalf); } } delete ph; } } // namespace int main(int argc, char **argv) { TestPageHeap_Stats(); TestPageHeap_Limit(); printf("PASS\n"); // on windows as part of library destructors we call getenv which // calls malloc which fails due to our exhausted heap limit. It then // causes fancy stack overflow because log message we're printing // for failed allocation somehow cause malloc calls too // // To keep us out of trouble we just drop malloc limit FLAGS_tcmalloc_heap_limit_mb = 0; return 0; } gperftools-2.4/src/tests/pagemap_unittest.cc0000644000000000000000000001332312440704174016250 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2003, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include "config_for_unittests.h" #include #include #if defined HAVE_STDINT_H #include // to get intptr_t #elif defined HAVE_INTTYPES_H #include // another place intptr_t might be defined #endif #include #include #include "base/logging.h" #include "pagemap.h" using std::vector; static void Permute(vector* elements) { if (elements->empty()) return; const size_t num_elements = elements->size(); for (size_t i = num_elements - 1; i > 0; --i) { const size_t newpos = rand() % (i + 1); const intptr_t tmp = (*elements)[i]; // swap (*elements)[i] = (*elements)[newpos]; (*elements)[newpos] = tmp; } } // Note: we leak memory every time a map is constructed, so do not // create too many maps. // Test specified map type template void TestMap(int limit, bool limit_is_below_the_overflow_boundary) { RAW_LOG(INFO, "Running test with %d iterations...\n", limit); { // Test sequential ensure/assignment Type map(malloc); for (intptr_t i = 0; i < static_cast(limit); i++) { map.Ensure(i, 1); map.set(i, (void*)(i+1)); CHECK_EQ(map.get(i), (void*)(i+1)); } for (intptr_t i = 0; i < static_cast(limit); i++) { CHECK_EQ(map.get(i), (void*)(i+1)); } } { // Test bulk Ensure Type map(malloc); map.Ensure(0, limit); for (intptr_t i = 0; i < static_cast(limit); i++) { map.set(i, (void*)(i+1)); CHECK_EQ(map.get(i), (void*)(i+1)); } for (intptr_t i = 0; i < static_cast(limit); i++) { CHECK_EQ(map.get(i), (void*)(i+1)); } } // Test that we correctly notice overflow { Type map(malloc); CHECK_EQ(map.Ensure(limit, limit+1), limit_is_below_the_overflow_boundary); } { // Test randomized accesses srand(301); // srand isn't great, but it's portable vector elements; for (intptr_t i = 0; i < static_cast(limit); i++) elements.push_back(i); Permute(&elements); Type map(malloc); for (intptr_t i = 0; i < static_cast(limit); i++) { map.Ensure(elements[i], 1); map.set(elements[i], (void*)(elements[i]+1)); CHECK_EQ(map.get(elements[i]), (void*)(elements[i]+1)); } for (intptr_t i = 0; i < static_cast(limit); i++) { CHECK_EQ(map.get(i), (void*)(i+1)); } } } // REQUIRES: BITS==10, i.e., valid range is [0,1023]. // Representations for different types will end up being: // PageMap1: array[1024] // PageMap2: array[32][32] // PageMap3: array[16][16][4] template void TestNext(const char* name) { RAW_LOG(ERROR, "Running NextTest %s\n", name); Type map(malloc); char a, b, c, d, e; // When map is empty CHECK(map.Next(0) == NULL); CHECK(map.Next(5) == NULL); CHECK(map.Next(1<<30) == NULL); // Add a single value map.Ensure(40, 1); map.set(40, &a); CHECK(map.Next(0) == &a); CHECK(map.Next(39) == &a); CHECK(map.Next(40) == &a); CHECK(map.Next(41) == NULL); CHECK(map.Next(1<<30) == NULL); // Add a few values map.Ensure(41, 1); map.Ensure(100, 3); map.set(41, &b); map.set(100, &c); map.set(101, &d); map.set(102, &e); CHECK(map.Next(0) == &a); CHECK(map.Next(39) == &a); CHECK(map.Next(40) == &a); CHECK(map.Next(41) == &b); CHECK(map.Next(42) == &c); CHECK(map.Next(63) == &c); CHECK(map.Next(64) == &c); CHECK(map.Next(65) == &c); CHECK(map.Next(99) == &c); CHECK(map.Next(100) == &c); CHECK(map.Next(101) == &d); CHECK(map.Next(102) == &e); CHECK(map.Next(103) == NULL); } int main(int argc, char** argv) { TestMap< TCMalloc_PageMap1<10> > (100, true); TestMap< TCMalloc_PageMap1<10> > (1 << 10, false); TestMap< TCMalloc_PageMap2<20> > (100, true); TestMap< TCMalloc_PageMap2<20> > (1 << 20, false); TestMap< TCMalloc_PageMap3<20> > (100, true); TestMap< TCMalloc_PageMap3<20> > (1 << 20, false); TestNext< TCMalloc_PageMap1<10> >("PageMap1"); TestNext< TCMalloc_PageMap2<10> >("PageMap2"); TestNext< TCMalloc_PageMap3<10> >("PageMap3"); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/profile-handler_unittest.cc0000644000000000000000000004143212440704174017713 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright 2009 Google Inc. All Rights Reserved. // Author: Nabeel Mian (nabeelmian@google.com) // Chris Demetriou (cgd@google.com) // // Use of this source code is governed by a BSD-style license that can // be found in the LICENSE file. // // // This file contains the unit tests for profile-handler.h interface. // // It is linked into three separate unit tests: // profile-handler_unittest tests basic functionality // profile-handler_disable_test tests that the profiler // is disabled with --install_signal_handlers=false // profile-handler_conflict_test tests that the profiler // is disabled when a SIGPROF handler is registered before InitGoogle. #include "config.h" #include "profile-handler.h" #include #include #include #include #include "base/logging.h" #include "base/simple_mutex.h" // Some helpful macros for the test class #define TEST_F(cls, fn) void cls :: fn() // Do we expect the profiler to be enabled? DEFINE_bool(test_profiler_enabled, true, "expect profiler to be enabled during tests"); // Should we look at the kernel signal handler settings during the test? // Not if we're in conflict_test, because we can't distinguish its nop // handler from the real one. DEFINE_bool(test_profiler_signal_handler, true, "check profiler signal handler during tests"); namespace { // TODO(csilvers): error-checking on the pthreads routines class Thread { public: Thread() : joinable_(false) { } void SetJoinable(bool value) { joinable_ = value; } void Start() { pthread_attr_t attr; pthread_attr_init(&attr); pthread_attr_setdetachstate(&attr, joinable_ ? PTHREAD_CREATE_JOINABLE : PTHREAD_CREATE_DETACHED); pthread_create(&thread_, &attr, &DoRun, this); pthread_attr_destroy(&attr); } void Join() { assert(joinable_); pthread_join(thread_, NULL); } virtual void Run() = 0; private: static void* DoRun(void* cls) { ProfileHandlerRegisterThread(); reinterpret_cast(cls)->Run(); return NULL; } pthread_t thread_; bool joinable_; }; // Sleep interval in nano secs. ITIMER_PROF goes off only afer the specified CPU // time is consumed. Under heavy load this process may no get scheduled in a // timely fashion. Therefore, give enough time (20x of ProfileHandle timer // interval 10ms (100Hz)) for this process to accumulate enought CPU time to get // a profile tick. int kSleepInterval = 200000000; // Sleep interval in nano secs. To ensure that if the timer has expired it is // reset. int kTimerResetInterval = 5000000; // Whether each thread has separate timers. static bool linux_per_thread_timers_mode_ = false; static bool timer_separate_ = false; static int timer_type_ = ITIMER_PROF; static int signal_number_ = SIGPROF; // Delays processing by the specified number of nano seconds. 'delay_ns' // must be less than the number of nano seconds in a second (1000000000). void Delay(int delay_ns) { static const int kNumNSecInSecond = 1000000000; EXPECT_LT(delay_ns, kNumNSecInSecond); struct timespec delay = { 0, delay_ns }; nanosleep(&delay, 0); } // Checks whether the profile timer is enabled for the current thread. bool IsTimerEnabled() { itimerval current_timer; EXPECT_EQ(0, getitimer(timer_type_, ¤t_timer)); if ((current_timer.it_value.tv_sec == 0) && (current_timer.it_value.tv_usec != 0)) { // May be the timer has expired. Sleep for a bit and check again. Delay(kTimerResetInterval); EXPECT_EQ(0, getitimer(timer_type_, ¤t_timer)); } return (current_timer.it_value.tv_sec != 0 || current_timer.it_value.tv_usec != 0); } class VirtualTimerGetterThread : public Thread { public: VirtualTimerGetterThread() { memset(&virtual_timer_, 0, sizeof virtual_timer_); } struct itimerval virtual_timer_; private: void Run() { CHECK_EQ(0, getitimer(ITIMER_VIRTUAL, &virtual_timer_)); } }; // This function checks whether the timers are shared between thread. This // function spawns a thread, so use it carefully when testing thread-dependent // behaviour. static bool threads_have_separate_timers() { struct itimerval new_timer_val; // Enable the virtual timer in the current thread. memset(&new_timer_val, 0, sizeof new_timer_val); new_timer_val.it_value.tv_sec = 1000000; // seconds CHECK_EQ(0, setitimer(ITIMER_VIRTUAL, &new_timer_val, NULL)); // Spawn a thread, get the virtual timer's value there. VirtualTimerGetterThread thread; thread.SetJoinable(true); thread.Start(); thread.Join(); // Disable timer here. memset(&new_timer_val, 0, sizeof new_timer_val); CHECK_EQ(0, setitimer(ITIMER_VIRTUAL, &new_timer_val, NULL)); bool target_timer_enabled = (thread.virtual_timer_.it_value.tv_sec != 0 || thread.virtual_timer_.it_value.tv_usec != 0); if (!target_timer_enabled) { LOG(INFO, "threads have separate timers"); return true; } else { LOG(INFO, "threads have shared timers"); return false; } } // Dummy worker thread to accumulate cpu time. class BusyThread : public Thread { public: BusyThread() : stop_work_(false) { } // Setter/Getters bool stop_work() { MutexLock lock(&mu_); return stop_work_; } void set_stop_work(bool stop_work) { MutexLock lock(&mu_); stop_work_ = stop_work; } private: // Protects stop_work_ below. Mutex mu_; // Whether to stop work? bool stop_work_; // Do work until asked to stop. void Run() { while (!stop_work()) { } // If timers are separate, check that timer is enabled for this thread. EXPECT_TRUE(linux_per_thread_timers_mode_ || !timer_separate_ || IsTimerEnabled()); } }; class NullThread : public Thread { private: void Run() { // If timers are separate, check that timer is enabled for this thread. EXPECT_TRUE(linux_per_thread_timers_mode_ || !timer_separate_ || IsTimerEnabled()); } }; // Signal handler which tracks the profile timer ticks. static void TickCounter(int sig, siginfo_t* sig_info, void *vuc, void* tick_counter) { int* counter = static_cast(tick_counter); ++(*counter); } // This class tests the profile-handler.h interface. class ProfileHandlerTest { protected: // Determines whether threads have separate timers. static void SetUpTestCase() { timer_type_ = (getenv("CPUPROFILE_REALTIME") ? ITIMER_REAL : ITIMER_PROF); signal_number_ = (getenv("CPUPROFILE_REALTIME") ? SIGALRM : SIGPROF); timer_separate_ = threads_have_separate_timers(); #if HAVE_LINUX_SIGEV_THREAD_ID linux_per_thread_timers_mode_ = (getenv("CPUPROFILE_PER_THREAD_TIMERS") != NULL); #endif Delay(kTimerResetInterval); } // Sets up the profile timers and SIGPROF/SIGALRM handler in a known state. // It does the following: // 1. Unregisters all the callbacks, stops the timer (if shared) and // clears out timer_sharing state in the ProfileHandler. This clears // out any state left behind by the previous test or during module // initialization when the test program was started. // 2. Spawns two threads which will be registered with the ProfileHandler. // At this time ProfileHandler knows if the timers are shared. // 3. Starts a busy worker thread to accumulate CPU usage. virtual void SetUp() { // Reset the state of ProfileHandler between each test. This unregisters // all callbacks, stops timer (if shared) and clears timer sharing state. ProfileHandlerReset(); EXPECT_EQ(0, GetCallbackCount()); VerifyDisabled(); // ProfileHandler requires at least two threads to be registerd to determine // whether timers are shared. RegisterThread(); RegisterThread(); // Now that two threads are started, verify that the signal handler is // disabled and the timers are correctly enabled/disabled. VerifyDisabled(); // Start worker to accumulate cpu usage. StartWorker(); } virtual void TearDown() { ProfileHandlerReset(); // Stops the worker thread. StopWorker(); } // Starts a no-op thread that gets registered with the ProfileHandler. Waits // for the thread to stop. void RegisterThread() { NullThread t; t.SetJoinable(true); t.Start(); t.Join(); } // Starts a busy worker thread to accumulate cpu time. There should be only // one busy worker running. This is required for the case where there are // separate timers for each thread. void StartWorker() { busy_worker_ = new BusyThread(); busy_worker_->SetJoinable(true); busy_worker_->Start(); // Wait for worker to start up and register with the ProfileHandler. // TODO(nabeelmian) This may not work under very heavy load. Delay(kSleepInterval); } // Stops the worker thread. void StopWorker() { busy_worker_->set_stop_work(true); busy_worker_->Join(); delete busy_worker_; } // Checks whether SIGPROF/SIGALRM signal handler is enabled. bool IsSignalEnabled() { struct sigaction sa; CHECK_EQ(sigaction(signal_number_, NULL, &sa), 0); return ((sa.sa_handler == SIG_IGN) || (sa.sa_handler == SIG_DFL)) ? false : true; } // Gets the number of callbacks registered with the ProfileHandler. uint32 GetCallbackCount() { ProfileHandlerState state; ProfileHandlerGetState(&state); return state.callback_count; } // Gets the current ProfileHandler interrupt count. uint64 GetInterruptCount() { ProfileHandlerState state; ProfileHandlerGetState(&state); return state.interrupts; } // Verifies that a callback is correctly registered and receiving // profile ticks. void VerifyRegistration(const int& tick_counter) { // Check the callback count. EXPECT_GT(GetCallbackCount(), 0); // Check that the profile timer is enabled. EXPECT_EQ(FLAGS_test_profiler_enabled, linux_per_thread_timers_mode_ || IsTimerEnabled()); // Check that the signal handler is enabled. if (FLAGS_test_profiler_signal_handler) { EXPECT_EQ(FLAGS_test_profiler_enabled, IsSignalEnabled()); } uint64 interrupts_before = GetInterruptCount(); // Sleep for a bit and check that tick counter is making progress. int old_tick_count = tick_counter; Delay(kSleepInterval); int new_tick_count = tick_counter; uint64 interrupts_after = GetInterruptCount(); if (FLAGS_test_profiler_enabled) { EXPECT_GT(new_tick_count, old_tick_count); EXPECT_GT(interrupts_after, interrupts_before); } else { EXPECT_EQ(new_tick_count, old_tick_count); EXPECT_EQ(interrupts_after, interrupts_before); } } // Verifies that a callback is not receiving profile ticks. void VerifyUnregistration(const int& tick_counter) { // Sleep for a bit and check that tick counter is not making progress. int old_tick_count = tick_counter; Delay(kSleepInterval); int new_tick_count = tick_counter; EXPECT_EQ(old_tick_count, new_tick_count); // If no callbacks, signal handler and shared timer should be disabled. if (GetCallbackCount() == 0) { if (FLAGS_test_profiler_signal_handler) { EXPECT_FALSE(IsSignalEnabled()); } if (!linux_per_thread_timers_mode_) { if (timer_separate_) { EXPECT_TRUE(IsTimerEnabled()); } else { EXPECT_FALSE(IsTimerEnabled()); } } } } // Verifies that the SIGPROF/SIGALRM interrupt handler is disabled and the // timer, if shared, is disabled. Expects the worker to be running. void VerifyDisabled() { // Check that the signal handler is disabled. if (FLAGS_test_profiler_signal_handler) { EXPECT_FALSE(IsSignalEnabled()); } // Check that the callback count is 0. EXPECT_EQ(0, GetCallbackCount()); // Check that the timer is disabled if shared, enabled otherwise. if (!linux_per_thread_timers_mode_) { if (timer_separate_) { EXPECT_TRUE(IsTimerEnabled()); } else { EXPECT_FALSE(IsTimerEnabled()); } } // Verify that the ProfileHandler is not accumulating profile ticks. uint64 interrupts_before = GetInterruptCount(); Delay(kSleepInterval); uint64 interrupts_after = GetInterruptCount(); EXPECT_EQ(interrupts_before, interrupts_after); } // Registers a callback and waits for kTimerResetInterval for timers to get // reset. ProfileHandlerToken* RegisterCallback(void* callback_arg) { ProfileHandlerToken* token = ProfileHandlerRegisterCallback( TickCounter, callback_arg); Delay(kTimerResetInterval); return token; } // Unregisters a callback and waits for kTimerResetInterval for timers to get // reset. void UnregisterCallback(ProfileHandlerToken* token) { ProfileHandlerUnregisterCallback(token); Delay(kTimerResetInterval); } // Busy worker thread to accumulate cpu usage. BusyThread* busy_worker_; private: // The tests to run void RegisterUnregisterCallback(); void MultipleCallbacks(); void Reset(); void RegisterCallbackBeforeThread(); public: #define RUN(test) do { \ printf("Running %s\n", #test); \ ProfileHandlerTest pht; \ pht.SetUp(); \ pht.test(); \ pht.TearDown(); \ } while (0) static int RUN_ALL_TESTS() { SetUpTestCase(); RUN(RegisterUnregisterCallback); RUN(MultipleCallbacks); RUN(Reset); RUN(RegisterCallbackBeforeThread); printf("Done\n"); return 0; } }; // Verifies ProfileHandlerRegisterCallback and // ProfileHandlerUnregisterCallback. TEST_F(ProfileHandlerTest, RegisterUnregisterCallback) { int tick_count = 0; ProfileHandlerToken* token = RegisterCallback(&tick_count); VerifyRegistration(tick_count); UnregisterCallback(token); VerifyUnregistration(tick_count); } // Verifies that multiple callbacks can be registered. TEST_F(ProfileHandlerTest, MultipleCallbacks) { // Register first callback. int first_tick_count; ProfileHandlerToken* token1 = RegisterCallback(&first_tick_count); // Check that callback was registered correctly. VerifyRegistration(first_tick_count); EXPECT_EQ(1, GetCallbackCount()); // Register second callback. int second_tick_count; ProfileHandlerToken* token2 = RegisterCallback(&second_tick_count); // Check that callback was registered correctly. VerifyRegistration(second_tick_count); EXPECT_EQ(2, GetCallbackCount()); // Unregister first callback. UnregisterCallback(token1); VerifyUnregistration(first_tick_count); EXPECT_EQ(1, GetCallbackCount()); // Verify that second callback is still registered. VerifyRegistration(second_tick_count); // Unregister second callback. UnregisterCallback(token2); VerifyUnregistration(second_tick_count); EXPECT_EQ(0, GetCallbackCount()); // Verify that the signal handler and timers are correctly disabled. VerifyDisabled(); } // Verifies ProfileHandlerReset TEST_F(ProfileHandlerTest, Reset) { // Verify that the profile timer interrupt is disabled. VerifyDisabled(); int first_tick_count; RegisterCallback(&first_tick_count); VerifyRegistration(first_tick_count); EXPECT_EQ(1, GetCallbackCount()); // Register second callback. int second_tick_count; RegisterCallback(&second_tick_count); VerifyRegistration(second_tick_count); EXPECT_EQ(2, GetCallbackCount()); // Reset the profile handler and verify that callback were correctly // unregistered and timer/signal are disabled. ProfileHandlerReset(); VerifyUnregistration(first_tick_count); VerifyUnregistration(second_tick_count); VerifyDisabled(); } // Verifies that ProfileHandler correctly handles a case where a callback was // registered before the second thread started. TEST_F(ProfileHandlerTest, RegisterCallbackBeforeThread) { // Stop the worker. StopWorker(); // Unregister all existing callbacks, stop the timer (if shared), disable // the signal handler and reset the timer sharing state in the Profile // Handler. ProfileHandlerReset(); EXPECT_EQ(0, GetCallbackCount()); VerifyDisabled(); // Start the worker. At this time ProfileHandler doesn't know if timers are // shared as only one thread has registered so far. StartWorker(); // Register a callback and check that profile ticks are being delivered. int tick_count; RegisterCallback(&tick_count); EXPECT_EQ(1, GetCallbackCount()); VerifyRegistration(tick_count); // Register a second thread and verify that timer and signal handler are // correctly enabled. RegisterThread(); EXPECT_EQ(1, GetCallbackCount()); EXPECT_EQ(FLAGS_test_profiler_enabled, linux_per_thread_timers_mode_ || IsTimerEnabled()); if (FLAGS_test_profiler_signal_handler) { EXPECT_EQ(FLAGS_test_profiler_enabled, IsSignalEnabled()); } } } // namespace int main(int argc, char** argv) { return ProfileHandlerTest::RUN_ALL_TESTS(); } gperftools-2.4/src/tests/profiledata_unittest.cc0000644000000000000000000004721612440704174017140 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Author: Chris Demetriou // // This file contains the unit tests for the ProfileData class. #if defined HAVE_STDINT_H #include // to get uintptr_t #elif defined HAVE_INTTYPES_H #include // another place uintptr_t might be defined #endif #include #include #include #include #include #include "profiledata.h" #include "base/commandlineflags.h" #include "base/logging.h" using std::string; // Some helpful macros for the test class #define TEST_F(cls, fn) void cls :: fn() namespace { template class scoped_array { public: scoped_array(T* data) : data_(data) { } ~scoped_array() { delete[] data_; } T* get() { return data_; } T& operator[](int i) { return data_[i]; } private: T* const data_; }; // Re-runs fn until it doesn't cause EINTR. #define NO_INTR(fn) do {} while ((fn) < 0 && errno == EINTR) // Read up to "count" bytes from file descriptor "fd" into the buffer // starting at "buf" while handling short reads and EINTR. On // success, return the number of bytes read. Otherwise, return -1. static ssize_t ReadPersistent(const int fd, void *buf, const size_t count) { CHECK_GE(fd, 0); char *buf0 = reinterpret_cast(buf); ssize_t num_bytes = 0; while (num_bytes < count) { ssize_t len; NO_INTR(len = read(fd, buf0 + num_bytes, count - num_bytes)); if (len < 0) { // There was an error other than EINTR. return -1; } if (len == 0) { // Reached EOF. break; } num_bytes += len; } CHECK(num_bytes <= count); return num_bytes; } // Thin wrapper around a file descriptor so that the file descriptor // gets closed for sure. struct FileDescriptor { const int fd_; explicit FileDescriptor(int fd) : fd_(fd) {} ~FileDescriptor() { if (fd_ >= 0) { NO_INTR(close(fd_)); } } int get() { return fd_; } }; // must be the same as with ProfileData::Slot. typedef uintptr_t ProfileDataSlot; // Quick and dirty function to make a number into a void* for use in a // sample. inline void* V(intptr_t x) { return reinterpret_cast(x); } // String returned by ProfileDataChecker helper functions to indicate success. const char kNoError[] = ""; class ProfileDataChecker { public: ProfileDataChecker() { const char* tmpdir = getenv("TMPDIR"); if (tmpdir == NULL) tmpdir = "/tmp"; mkdir(tmpdir, 0755); // if necessary filename_ = string(tmpdir) + "/profiledata_unittest.tmp"; } string filename() const { return filename_; } // Checks the first 'num_slots' profile data slots in the file // against the data pointed to by 'slots'. Returns kNoError if the // data matched, otherwise returns an indication of the cause of the // mismatch. string Check(const ProfileDataSlot* slots, int num_slots) { return CheckWithSkips(slots, num_slots, NULL, 0); } // Checks the first 'num_slots' profile data slots in the file // against the data pointed to by 'slots', skipping over entries // described by 'skips' and 'num_skips'. // // 'skips' must be a sorted list of (0-based) slot numbers to be // skipped, of length 'num_skips'. Note that 'num_slots' includes // any skipped slots, i.e., the first 'num_slots' profile data slots // will be considered, but some may be skipped. // // Returns kNoError if the data matched, otherwise returns an // indication of the cause of the mismatch. string CheckWithSkips(const ProfileDataSlot* slots, int num_slots, const int* skips, int num_skips); // Validate that a profile is correctly formed. The profile is // assumed to have been created by the same kind of binary (e.g., // same slot size, same endian, etc.) as is validating the profile. // // Returns kNoError if the profile appears valid, otherwise returns // an indication of the problem with the profile. string ValidateProfile(); private: string filename_; }; string ProfileDataChecker::CheckWithSkips(const ProfileDataSlot* slots, int num_slots, const int* skips, int num_skips) { FileDescriptor fd(open(filename_.c_str(), O_RDONLY)); if (fd.get() < 0) return "file open error"; scoped_array filedata(new ProfileDataSlot[num_slots]); size_t expected_bytes = num_slots * sizeof filedata[0]; ssize_t bytes_read = ReadPersistent(fd.get(), filedata.get(), expected_bytes); if (expected_bytes != bytes_read) return "file too small"; for (int i = 0; i < num_slots; i++) { if (num_skips > 0 && *skips == i) { num_skips--; skips++; continue; } if (slots[i] != filedata[i]) return "data mismatch"; } return kNoError; } string ProfileDataChecker::ValidateProfile() { FileDescriptor fd(open(filename_.c_str(), O_RDONLY)); if (fd.get() < 0) return "file open error"; struct stat statbuf; if (fstat(fd.get(), &statbuf) != 0) return "fstat error"; if (statbuf.st_size != static_cast(statbuf.st_size)) return "file impossibly large"; ssize_t filesize = statbuf.st_size; scoped_array filedata(new char[filesize]); if (ReadPersistent(fd.get(), filedata.get(), filesize) != filesize) return "read of whole file failed"; // Must have enough data for the header and the trailer. if (filesize < (5 + 3) * sizeof(ProfileDataSlot)) return "not enough data in profile for header + trailer"; // Check the header if (reinterpret_cast(filedata.get())[0] != 0) return "error in header: non-zero count"; if (reinterpret_cast(filedata.get())[1] != 3) return "error in header: num_slots != 3"; if (reinterpret_cast(filedata.get())[2] != 0) return "error in header: non-zero format version"; // Period (slot 3) can have any value. if (reinterpret_cast(filedata.get())[4] != 0) return "error in header: non-zero padding value"; ssize_t cur_offset = 5 * sizeof(ProfileDataSlot); // While there are samples, skip them. Each sample consists of // at least three slots. bool seen_trailer = false; while (!seen_trailer) { if (cur_offset > filesize - 3 * sizeof(ProfileDataSlot)) return "truncated sample header"; ProfileDataSlot* sample = reinterpret_cast(filedata.get() + cur_offset); ProfileDataSlot slots_this_sample = 2 + sample[1]; ssize_t size_this_sample = slots_this_sample * sizeof(ProfileDataSlot); if (cur_offset > filesize - size_this_sample) return "truncated sample"; if (sample[0] == 0 && sample[1] == 1 && sample[2] == 0) { seen_trailer = true; } else { if (sample[0] < 1) return "error in sample: sample count < 1"; if (sample[1] < 1) return "error in sample: num_pcs < 1"; for (int i = 2; i < slots_this_sample; i++) { if (sample[i] == 0) return "error in sample: NULL PC"; } } cur_offset += size_this_sample; } // There must be at least one line in the (text) list of mapped objects, // and it must be terminated by a newline. Note, the use of newline // here and below Might not be reasonable on non-UNIX systems. if (cur_offset >= filesize) return "no list of mapped objects"; if (filedata[filesize - 1] != '\n') return "profile did not end with a complete line"; while (cur_offset < filesize) { char* line_start = filedata.get() + cur_offset; // Find the end of the line, and replace it with a NUL for easier // scanning. char* line_end = strchr(line_start, '\n'); *line_end = '\0'; // Advance past any leading space. It's allowed in some lines, // but not in others. bool has_leading_space = false; char* line_cur = line_start; while (*line_cur == ' ') { has_leading_space = true; line_cur++; } bool found_match = false; // Check for build lines. if (!found_match) { found_match = (strncmp(line_cur, "build=", 6) == 0); // Anything may follow "build=", and leading space is allowed. } // A line from ProcMapsIterator::FormatLine, of the form: // // 40000000-40015000 r-xp 00000000 03:01 12845071 /lib/ld-2.3.2.so // // Leading space is not allowed. The filename may be omitted or // may consist of multiple words, so we scan only up to the // space before the filename. if (!found_match) { int chars_scanned = -1; sscanf(line_cur, "%*x-%*x %*c%*c%*c%*c %*x %*x:%*x %*d %n", &chars_scanned); found_match = (chars_scanned > 0 && !has_leading_space); } // A line from DumpAddressMap, of the form: // // 40000000-40015000: /lib/ld-2.3.2.so // // Leading space is allowed. The filename may be omitted or may // consist of multiple words, so we scan only up to the space // before the filename. if (!found_match) { int chars_scanned = -1; sscanf(line_cur, "%*x-%*x: %n", &chars_scanned); found_match = (chars_scanned > 0); } if (!found_match) return "unrecognized line in text section"; cur_offset += (line_end - line_start) + 1; } return kNoError; } class ProfileDataTest { protected: void ExpectStopped() { EXPECT_FALSE(collector_.enabled()); } void ExpectRunningSamples(int samples) { ProfileData::State state; collector_.GetCurrentState(&state); EXPECT_TRUE(state.enabled); EXPECT_EQ(samples, state.samples_gathered); } void ExpectSameState(const ProfileData::State& before, const ProfileData::State& after) { EXPECT_EQ(before.enabled, after.enabled); EXPECT_EQ(before.samples_gathered, after.samples_gathered); EXPECT_EQ(before.start_time, after.start_time); EXPECT_STREQ(before.profile_name, after.profile_name); } ProfileData collector_; ProfileDataChecker checker_; private: // The tests to run void OpsWhenStopped(); void StartStopEmpty(); void StartStopNoOptionsEmpty(); void StartWhenStarted(); void StartStopEmpty2(); void CollectOne(); void CollectTwoMatching(); void CollectTwoFlush(); void StartResetRestart(); public: #define RUN(test) do { \ printf("Running %s\n", #test); \ ProfileDataTest pdt; \ pdt.test(); \ } while (0) static int RUN_ALL_TESTS() { RUN(OpsWhenStopped); RUN(StartStopEmpty); RUN(StartWhenStarted); RUN(StartStopEmpty2); RUN(CollectOne); RUN(CollectTwoMatching); RUN(CollectTwoFlush); RUN(StartResetRestart); return 0; } }; // Check that various operations are safe when stopped. TEST_F(ProfileDataTest, OpsWhenStopped) { ExpectStopped(); EXPECT_FALSE(collector_.enabled()); // Verify that state is disabled, all-empty/all-0 ProfileData::State state_before; collector_.GetCurrentState(&state_before); EXPECT_FALSE(state_before.enabled); EXPECT_EQ(0, state_before.samples_gathered); EXPECT_EQ(0, state_before.start_time); EXPECT_STREQ("", state_before.profile_name); // Safe to call stop again. collector_.Stop(); // Safe to call FlushTable. collector_.FlushTable(); // Safe to call Add. const void *trace[] = { V(100), V(101), V(102), V(103), V(104) }; collector_.Add(arraysize(trace), trace); ProfileData::State state_after; collector_.GetCurrentState(&state_after); ExpectSameState(state_before, state_after); } // Start and Stop, collecting no samples. Verify output contents. TEST_F(ProfileDataTest, StartStopEmpty) { const int frequency = 1; ProfileDataSlot slots[] = { 0, 3, 0, 1000000 / frequency, 0, // binary header 0, 1, 0 // binary trailer }; ExpectStopped(); ProfileData::Options options; options.set_frequency(frequency); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ExpectRunningSamples(0); collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots))); } // Start and Stop with no options, collecting no samples. Verify // output contents. TEST_F(ProfileDataTest, StartStopNoOptionsEmpty) { // We're not requesting a specific period, implementation can do // whatever it likes. ProfileDataSlot slots[] = { 0, 3, 0, 0 /* skipped */, 0, // binary header 0, 1, 0 // binary trailer }; int slots_to_skip[] = { 3 }; ExpectStopped(); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), ProfileData::Options())); ExpectRunningSamples(0); collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.CheckWithSkips(slots, arraysize(slots), slots_to_skip, arraysize(slots_to_skip))); } // Start after already started. Should return false and not impact // collected data or state. TEST_F(ProfileDataTest, StartWhenStarted) { const int frequency = 1; ProfileDataSlot slots[] = { 0, 3, 0, 1000000 / frequency, 0, // binary header 0, 1, 0 // binary trailer }; ProfileData::Options options; options.set_frequency(frequency); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ProfileData::State state_before; collector_.GetCurrentState(&state_before); options.set_frequency(frequency * 2); CHECK(!collector_.Start("foobar", options)); ProfileData::State state_after; collector_.GetCurrentState(&state_after); ExpectSameState(state_before, state_after); collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots))); } // Like StartStopEmpty, but uses a different file name and frequency. TEST_F(ProfileDataTest, StartStopEmpty2) { const int frequency = 2; ProfileDataSlot slots[] = { 0, 3, 0, 1000000 / frequency, 0, // binary header 0, 1, 0 // binary trailer }; ExpectStopped(); ProfileData::Options options; options.set_frequency(frequency); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ExpectRunningSamples(0); collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots))); } TEST_F(ProfileDataTest, CollectOne) { const int frequency = 2; ProfileDataSlot slots[] = { 0, 3, 0, 1000000 / frequency, 0, // binary header 1, 5, 100, 101, 102, 103, 104, // our sample 0, 1, 0 // binary trailer }; ExpectStopped(); ProfileData::Options options; options.set_frequency(frequency); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ExpectRunningSamples(0); const void *trace[] = { V(100), V(101), V(102), V(103), V(104) }; collector_.Add(arraysize(trace), trace); ExpectRunningSamples(1); collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots))); } TEST_F(ProfileDataTest, CollectTwoMatching) { const int frequency = 2; ProfileDataSlot slots[] = { 0, 3, 0, 1000000 / frequency, 0, // binary header 2, 5, 100, 201, 302, 403, 504, // our two samples 0, 1, 0 // binary trailer }; ExpectStopped(); ProfileData::Options options; options.set_frequency(frequency); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ExpectRunningSamples(0); for (int i = 0; i < 2; ++i) { const void *trace[] = { V(100), V(201), V(302), V(403), V(504) }; collector_.Add(arraysize(trace), trace); ExpectRunningSamples(i + 1); } collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots))); } TEST_F(ProfileDataTest, CollectTwoFlush) { const int frequency = 2; ProfileDataSlot slots[] = { 0, 3, 0, 1000000 / frequency, 0, // binary header 1, 5, 100, 201, 302, 403, 504, // first sample (flushed) 1, 5, 100, 201, 302, 403, 504, // second identical sample 0, 1, 0 // binary trailer }; ExpectStopped(); ProfileData::Options options; options.set_frequency(frequency); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ExpectRunningSamples(0); const void *trace[] = { V(100), V(201), V(302), V(403), V(504) }; collector_.Add(arraysize(trace), trace); ExpectRunningSamples(1); collector_.FlushTable(); collector_.Add(arraysize(trace), trace); ExpectRunningSamples(2); collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots))); } // Start then reset, verify that the result is *not* a valid profile. // Then start again and make sure the result is OK. TEST_F(ProfileDataTest, StartResetRestart) { ExpectStopped(); ProfileData::Options options; options.set_frequency(1); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ExpectRunningSamples(0); collector_.Reset(); ExpectStopped(); // We expect the resulting file to be empty. This is a minimal test // of ValidateProfile. EXPECT_NE(kNoError, checker_.ValidateProfile()); struct stat statbuf; EXPECT_EQ(0, stat(checker_.filename().c_str(), &statbuf)); EXPECT_EQ(0, statbuf.st_size); const int frequency = 2; // Different frequency than used above. ProfileDataSlot slots[] = { 0, 3, 0, 1000000 / frequency, 0, // binary header 0, 1, 0 // binary trailer }; options.set_frequency(frequency); EXPECT_TRUE(collector_.Start(checker_.filename().c_str(), options)); ExpectRunningSamples(0); collector_.Stop(); ExpectStopped(); EXPECT_EQ(kNoError, checker_.ValidateProfile()); EXPECT_EQ(kNoError, checker_.Check(slots, arraysize(slots))); } } // namespace int main(int argc, char** argv) { int rc = ProfileDataTest::RUN_ALL_TESTS(); printf("%s\n", rc == 0 ? "PASS" : "FAIL"); return rc; } gperftools-2.4/src/tests/profiler_unittest.cc0000644000000000000000000001142512440704174016461 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Does some simple arithmetic and a few libc routines, so we can profile it. // Define WITH_THREADS to add pthread functionality as well (otherwise, btw, // the num_threads argument to this program is ingored). #include "config_for_unittests.h" #include #include #ifdef HAVE_UNISTD_H #include // for fork() #endif #include // for wait() #include "gperftools/profiler.h" #include "base/simple_mutex.h" #include "tests/testutil.h" static int result = 0; static int g_iters = 0; // argv[1] Mutex mutex(Mutex::LINKER_INITIALIZED); static void test_other_thread() { #ifndef NO_THREADS ProfilerRegisterThread(); int i, m; char b[128]; MutexLock ml(&mutex); for (m = 0; m < 1000000; ++m) { // run millions of times for (i = 0; i < g_iters; ++i ) { result ^= i; } snprintf(b, sizeof(b), "other: %d", result); // get some libc action } #endif } static void test_main_thread() { int i, m; char b[128]; MutexLock ml(&mutex); for (m = 0; m < 1000000; ++m) { // run millions of times for (i = 0; i < g_iters; ++i ) { result ^= i; } snprintf(b, sizeof(b), "same: %d", result); // get some libc action } } int main(int argc, char** argv) { if ( argc <= 1 ) { fprintf(stderr, "USAGE: %s [num_threads] [filename]\n", argv[0]); fprintf(stderr, " iters: How many million times to run the XOR test.\n"); fprintf(stderr, " num_threads: how many concurrent threads.\n"); fprintf(stderr, " 0 or 1 for single-threaded mode,\n"); fprintf(stderr, " -# to fork instead of thread.\n"); fprintf(stderr, " filename: The name of the output profile.\n"); fprintf(stderr, (" If you don't specify, set CPUPROFILE " "in the environment instead!\n")); return 1; } g_iters = atoi(argv[1]); int num_threads = 1; const char* filename = NULL; if (argc > 2) { num_threads = atoi(argv[2]); } if (argc > 3) { filename = argv[3]; } if (filename) { ProfilerStart(filename); } test_main_thread(); ProfilerFlush(); // just because we can // The other threads, if any, will run only half as long as the main thread if(num_threads > 0) { RunManyThreads(test_other_thread, num_threads); } else { // Or maybe they asked to fork. The fork test is only interesting // when we use CPUPROFILE to name, so check for that #ifdef HAVE_UNISTD_H for (; num_threads < 0; ++num_threads) { // - to fork if (filename) { printf("FORK test only makes sense when no filename is specified.\n"); return 2; } switch (fork()) { case -1: printf("FORK failed!\n"); return 1; case 0: // child return execl(argv[0], argv[0], argv[1], NULL); default: wait(NULL); // we'll let the kids run one at a time } } #else fprintf(stderr, "%s was compiled without support for fork() and exec()\n", argv[0]); #endif } test_main_thread(); if (filename) { ProfilerStop(); } return 0; } gperftools-2.4/src/tests/profiler_unittest.sh0000755000000000000000000002506112440704174016512 00000000000000#!/bin/sh # Copyright (c) 2005, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Author: Craig Silverstein # # Runs the 4 profiler unittests and makes sure their profiles look # appropriate. We expect two commandline args, as described below. # # We run under the assumption that if $PROFILER1 is run with no # arguments, it prints a usage line of the form # USAGE: [...] # # This is because libtool sometimes turns the 'executable' into a # shell script which runs an actual binary somewhere else. # We expect BINDIR and PPROF_PATH to be set in the environment. # If not, we set them to some reasonable values BINDIR="${BINDIR:-.}" PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}" if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then echo "USAGE: $0 [unittest dir] [path to pprof]" echo " By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH" exit 1 fi TMPDIR=/tmp/profile_info UNITTEST_DIR=${1:-$BINDIR} PPROF=${2:-$PPROF_PATH} # We test the sliding-window functionality of the cpu-profile reader # by using a small stride, forcing lots of reads. PPROF_FLAGS="--test_stride=128" PROFILER1="$UNITTEST_DIR/profiler1_unittest" PROFILER2="$UNITTEST_DIR/profiler2_unittest" PROFILER3="$UNITTEST_DIR/profiler3_unittest" PROFILER4="$UNITTEST_DIR/profiler4_unittest" # Unfortunately, for us, libtool can replace executables with a shell # script that does some work before calling the 'real' executable # under a different name. We need the 'real' executable name to run # pprof on it. We've constructed all the binaries used in this # unittest so when they are called with no arguments, they report # their argv[0], which is the real binary name. Realname() { "$1" 2>&1 | awk '{print $2; exit;}' } PROFILER1_REALNAME=`Realname "$PROFILER1"` PROFILER2_REALNAME=`Realname "$PROFILER2"` PROFILER3_REALNAME=`Realname "$PROFILER3"` PROFILER4_REALNAME=`Realname "$PROFILER4"` # It's meaningful to the profiler, so make sure we know its state unset CPUPROFILE # Some output/logging in the profiler can cause issues when running the unit # tests. For example, logging a warning when the profiler is detected as being # present but no CPUPROFILE is specified in the environment. Especially when # we are checking for a silent run or specific timing constraints are being # checked. So set the env variable signifying that we are running in a unit # test environment. PERFTOOLS_UNITTEST=1 rm -rf "$TMPDIR" mkdir "$TMPDIR" || exit 2 num_failures=0 RegisterFailure() { num_failures=`expr $num_failures + 1` } # Takes two filenames representing profiles, with their executable scripts, # and a multiplier, and verifies that the 'contentful' functions in each # profile take the same time (possibly scaled by the given multiplier). It # used to be "same" meant within 50%, after adding an noise-reducing X units # to each value. But even that would often spuriously fail, so now it's # "both non-zero". We're pretty forgiving. VerifySimilar() { prof1="$TMPDIR/$1" exec1="$2" prof2="$TMPDIR/$3" exec2="$4" mult="$5" # We are careful not to put exec1 and exec2 in quotes, because if # they are the empty string, it means we want to use the 1-arg # version of pprof. mthread1=`"$PPROF" $PPROF_FLAGS $exec1 "$prof1" | grep test_main_thread | awk '{print $1}'` mthread2=`"$PPROF" $PPROF_FLAGS $exec2 "$prof2" | grep test_main_thread | awk '{print $1}'` mthread1_plus=`expr $mthread1 + 5` mthread2_plus=`expr $mthread2 + 5` if [ -z "$mthread1" ] || [ -z "$mthread2" ] || \ [ "$mthread1" -le 0 -o "$mthread2" -le 0 ] # || [ `expr $mthread1_plus \* $mult` -gt `expr $mthread2_plus \* 2` -o \ # `expr $mthread1_plus \* $mult \* 2` -lt `expr $mthread2_plus` ] then echo echo ">>> profile on $exec1 vs $exec2 with multiplier $mult failed:" echo "Actual times (in profiling units) were '$mthread1' vs. '$mthread2'" echo RegisterFailure fi } # Takes two filenames representing profiles, and optionally their # executable scripts (these may be empty if the profiles include # symbols), and verifies that the two profiles are identical. VerifyIdentical() { prof1="$TMPDIR/$1" exec1="$2" prof2="$TMPDIR/$3" exec2="$4" # We are careful not to put exec1 and exec2 in quotes, because if # they are the empty string, it means we want to use the 1-arg # version of pprof. "$PPROF" $PPROF_FLAGS $exec1 "$prof1" > "$TMPDIR/out1" "$PPROF" $PPROF_FLAGS $exec2 "$prof2" > "$TMPDIR/out2" diff=`diff "$TMPDIR/out1" "$TMPDIR/out2"` if [ ! -z "$diff" ]; then echo echo ">>> profile doesn't match, args: $exec1 $prof1 vs. $exec2 $prof2" echo ">>> Diff:" echo "$diff" echo RegisterFailure fi } # Takes a filename representing a profile, with its executable, # and a multiplier, and verifies that the main-thread function takes # the same amount of time as the other-threads function (possibly scaled # by the given multiplier). Figuring out the multiplier can be tricky, # since by design the main thread runs twice as long as each of the # 'other' threads! It used to be "same" meant within 50%, after adding an # noise-reducing X units to each value. But even that would often # spuriously fail, so now it's "both non-zero". We're pretty forgiving. VerifyAcrossThreads() { prof1="$TMPDIR/$1" # We need to run the script with no args to get the actual exe name exec1="$2" mult="$3" # We are careful not to put exec1 in quotes, because if it is the # empty string, it means we want to use the 1-arg version of pprof. mthread=`$PPROF $PPROF_FLAGS $exec1 "$prof1" | grep test_main_thread | awk '{print $1}'` othread=`$PPROF $PPROF_FLAGS $exec1 "$prof1" | grep test_other_thread | awk '{print $1}'` if [ -z "$mthread" ] || [ -z "$othread" ] || \ [ "$mthread" -le 0 -o "$othread" -le 0 ] # || [ `expr $mthread \* $mult \* 3` -gt `expr $othread \* 10` -o \ # `expr $mthread \* $mult \* 10` -lt `expr $othread \* 3` ] then echo echo ">>> profile on $exec1 (main vs thread) with multiplier $mult failed:" echo "Actual times (in profiling units) were '$mthread' vs. '$othread'" echo RegisterFailure fi } echo echo ">>> WARNING <<<" echo "This test looks at timing information to determine correctness." echo "If your system is loaded, the test may spuriously fail." echo "If the test does fail with an 'Actual times' error, try running again." echo # profiler1 is a non-threaded version "$PROFILER1" 50 1 "$TMPDIR/p1" || RegisterFailure "$PROFILER1" 100 1 "$TMPDIR/p2" || RegisterFailure VerifySimilar p1 "$PROFILER1_REALNAME" p2 "$PROFILER1_REALNAME" 2 # Verify the same thing works if we statically link "$PROFILER2" 50 1 "$TMPDIR/p3" || RegisterFailure "$PROFILER2" 100 1 "$TMPDIR/p4" || RegisterFailure VerifySimilar p3 "$PROFILER2_REALNAME" p4 "$PROFILER2_REALNAME" 2 # Verify the same thing works if we specify via CPUPROFILE CPUPROFILE="$TMPDIR/p5" "$PROFILER2" 50 || RegisterFailure CPUPROFILE="$TMPDIR/p6" "$PROFILER2" 100 || RegisterFailure VerifySimilar p5 "$PROFILER2_REALNAME" p6 "$PROFILER2_REALNAME" 2 CPUPROFILE="$TMPDIR/p5b" "$PROFILER3" 30 || RegisterFailure CPUPROFILE="$TMPDIR/p5c" "$PROFILER3" 60 || RegisterFailure VerifySimilar p5b "$PROFILER3_REALNAME" p5c "$PROFILER3_REALNAME" 2 # Now try what happens when we use threads "$PROFILER3" 30 2 "$TMPDIR/p7" || RegisterFailure "$PROFILER3" 60 2 "$TMPDIR/p8" || RegisterFailure VerifySimilar p7 "$PROFILER3_REALNAME" p8 "$PROFILER3_REALNAME" 2 "$PROFILER4" 30 2 "$TMPDIR/p9" || RegisterFailure "$PROFILER4" 60 2 "$TMPDIR/p10" || RegisterFailure VerifySimilar p9 "$PROFILER4_REALNAME" p10 "$PROFILER4_REALNAME" 2 # More threads! "$PROFILER4" 25 3 "$TMPDIR/p9" || RegisterFailure "$PROFILER4" 50 3 "$TMPDIR/p10" || RegisterFailure VerifySimilar p9 "$PROFILER4_REALNAME" p10 "$PROFILER4_REALNAME" 2 # Compare how much time the main thread takes compared to the other threads # Recall the main thread runs twice as long as the other threads, by design. "$PROFILER4" 20 4 "$TMPDIR/p11" || RegisterFailure VerifyAcrossThreads p11 "$PROFILER4_REALNAME" 2 # Test symbol save and restore "$PROFILER1" 50 1 "$TMPDIR/p12" || RegisterFailure "$PPROF" $PPROF_FLAGS "$PROFILER1_REALNAME" "$TMPDIR/p12" --raw \ >"$TMPDIR/p13" 2>/dev/null || RegisterFailure VerifyIdentical p12 "$PROFILER1_REALNAME" p13 "" || RegisterFailure "$PROFILER3" 30 2 "$TMPDIR/p14" || RegisterFailure "$PPROF" $PPROF_FLAGS "$PROFILER3_REALNAME" "$TMPDIR/p14" --raw \ >"$TMPDIR/p15" 2>/dev/null || RegisterFailure VerifyIdentical p14 "$PROFILER3_REALNAME" p15 "" || RegisterFailure # Test using ITIMER_REAL instead of ITIMER_PROF. env CPUPROFILE_REALTIME=1 "$PROFILER3" 30 2 "$TMPDIR/p16" || RegisterFailure env CPUPROFILE_REALTIME=1 "$PROFILER3" 60 2 "$TMPDIR/p17" || RegisterFailure VerifySimilar p16 "$PROFILER3_REALNAME" p17 "$PROFILER3_REALNAME" 2 # Make sure that when we have a process with a fork, the profiles don't # clobber each other CPUPROFILE="$TMPDIR/pfork" "$PROFILER1" 1 -2 || RegisterFailure n=`ls $TMPDIR/pfork* | wc -l` if [ $n != 3 ]; then echo "FORK test FAILED: expected 3 profiles (for main + 2 children), found $n" num_failures=`expr $num_failures + 1` fi rm -rf "$TMPDIR" # clean up echo "Tests finished with $num_failures failures" exit $num_failures gperftools-2.4/src/tests/raw_printer_test.cc0000644000000000000000000000346712440704174016302 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright 2009 Google Inc. All Rights Reserved. // Author: sanjay@google.com (Sanjay Ghemawat) // // Use of this source code is governed by a BSD-style license that can // be found in the LICENSE file. #include "raw_printer.h" #include #include #include "base/logging.h" using std::string; #define TEST(a, b) void TEST_##a##_##b() #define RUN_TEST(a, b) TEST_##a##_##b() TEST(RawPrinter, Empty) { char buffer[1]; base::RawPrinter printer(buffer, arraysize(buffer)); CHECK_EQ(0, printer.length()); CHECK_EQ(string(""), buffer); CHECK_EQ(0, printer.space_left()); printer.Printf("foo"); CHECK_EQ(string(""), string(buffer)); CHECK_EQ(0, printer.length()); CHECK_EQ(0, printer.space_left()); } TEST(RawPrinter, PartiallyFilled) { char buffer[100]; base::RawPrinter printer(buffer, arraysize(buffer)); printer.Printf("%s %s", "hello", "world"); CHECK_EQ(string("hello world"), string(buffer)); CHECK_EQ(11, printer.length()); CHECK_LT(0, printer.space_left()); } TEST(RawPrinter, Truncated) { char buffer[3]; base::RawPrinter printer(buffer, arraysize(buffer)); printer.Printf("%d", 12345678); CHECK_EQ(string("12"), string(buffer)); CHECK_EQ(2, printer.length()); CHECK_EQ(0, printer.space_left()); } TEST(RawPrinter, ExactlyFilled) { char buffer[12]; base::RawPrinter printer(buffer, arraysize(buffer)); printer.Printf("%s %s", "hello", "world"); CHECK_EQ(string("hello world"), string(buffer)); CHECK_EQ(11, printer.length()); CHECK_EQ(0, printer.space_left()); } int main(int argc, char **argv) { RUN_TEST(RawPrinter, Empty); RUN_TEST(RawPrinter, PartiallyFilled); RUN_TEST(RawPrinter, Truncated); RUN_TEST(RawPrinter, ExactlyFilled); printf("PASS\n"); return 0; // 0 means success } gperftools-2.4/src/tests/realloc_unittest.cc0000644000000000000000000001023512440704174016256 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2004, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Test realloc() functionality #include "config_for_unittests.h" #include // for assert #include #include // for size_t, NULL #include // for free, malloc, realloc #include // for min #include "base/logging.h" using std::min; // Fill a buffer of the specified size with a predetermined pattern static void Fill(unsigned char* buffer, int n) { for (int i = 0; i < n; i++) { buffer[i] = (i & 0xff); } } // Check that the specified buffer has the predetermined pattern // generated by Fill() static bool Valid(unsigned char* buffer, int n) { for (int i = 0; i < n; i++) { if (buffer[i] != (i & 0xff)) { return false; } } return true; } // Return the next interesting size/delta to check. Returns -1 if no more. static int NextSize(int size) { if (size < 100) { return size+1; } else if (size < 100000) { // Find next power of two int power = 1; while (power < size) { power <<= 1; } // Yield (power-1, power, power+1) if (size < power-1) { return power-1; } else if (size == power-1) { return power; } else { assert(size == power); return power+1; } } else { return -1; } } int main(int argc, char** argv) { for (int src_size = 0; src_size >= 0; src_size = NextSize(src_size)) { for (int dst_size = 0; dst_size >= 0; dst_size = NextSize(dst_size)) { unsigned char* src = (unsigned char*) malloc(src_size); Fill(src, src_size); unsigned char* dst = (unsigned char*) realloc(src, dst_size); CHECK(Valid(dst, min(src_size, dst_size))); Fill(dst, dst_size); CHECK(Valid(dst, dst_size)); if (dst != NULL) free(dst); } } // Now make sure realloc works correctly even when we overflow the // packed cache, so some entries are evicted from the cache. // The cache has 2^12 entries, keyed by page number. const int kNumEntries = 1 << 14; int** p = (int**)malloc(sizeof(*p) * kNumEntries); int sum = 0; for (int i = 0; i < kNumEntries; i++) { p[i] = (int*)malloc(8192); // no page size is likely to be bigger p[i][1000] = i; // use memory deep in the heart of p } for (int i = 0; i < kNumEntries; i++) { p[i] = (int*)realloc(p[i], 9000); } for (int i = 0; i < kNumEntries; i++) { sum += p[i][1000]; free(p[i]); } CHECK_EQ(kNumEntries/2 * (kNumEntries - 1), sum); // assume kNE is even free(p); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/sampler_test.cc0000755000000000000000000005565212440704174015417 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // All Rights Reserved. // // Author: Daniel Ford // // Checks basic properties of the sampler #include "config_for_unittests.h" #include // defines posix_memalign #include // for the printf at the end #if defined HAVE_STDINT_H #include // to get uintptr_t #elif defined HAVE_INTTYPES_H #include // another place uintptr_t might be defined #endif #include #include #include #include #include #include #include "base/logging.h" #include "base/commandlineflags.h" #include "sampler.h" // The Sampler class being tested using std::sort; using std::min; using std::max; using std::vector; using std::abs; vector g_testlist; // the tests to run #define TEST(a, b) \ struct Test_##a##_##b { \ Test_##a##_##b() { g_testlist.push_back(&Run); } \ static void Run(); \ }; \ static Test_##a##_##b g_test_##a##_##b; \ void Test_##a##_##b::Run() static int RUN_ALL_TESTS() { vector::const_iterator it; for (it = g_testlist.begin(); it != g_testlist.end(); ++it) { (*it)(); // The test will error-exit if there's a problem. } fprintf(stderr, "\nPassed %d tests\n\nPASS\n", (int)g_testlist.size()); return 0; } #undef LOG // defined in base/logging.h // Ideally, we'd put the newline at the end, but this hack puts the // newline at the end of the previous log message, which is good enough :-) #define LOG(level) std::cerr << "\n" static std::string StringPrintf(const char* format, ...) { char buf[256]; // should be big enough for all logging va_list ap; va_start(ap, format); perftools_vsnprintf(buf, sizeof(buf), format, ap); va_end(ap); return buf; } namespace { template class scoped_array { public: scoped_array(T* p) : p_(p) { } ~scoped_array() { delete[] p_; } const T* get() const { return p_; } T* get() { return p_; } T& operator[](int i) { return p_[i]; } private: T* p_; }; } // Note that these tests are stochastic. // This mean that the chance of correct code passing the test is, // in the case of 5 standard deviations: // kSigmas=5: ~99.99994267% // in the case of 4 standard deviations: // kSigmas=4: ~99.993666% static const double kSigmas = 4; static const size_t kSamplingInterval = 512*1024; // Tests that GetSamplePeriod returns the expected value // which is 1<<19 TEST(Sampler, TestGetSamplePeriod) { tcmalloc::Sampler sampler; sampler.Init(1); uint64_t sample_period; sample_period = sampler.GetSamplePeriod(); CHECK_GT(sample_period, 0); } // Tests of the quality of the random numbers generated // This uses the Anderson Darling test for uniformity. // See "Evaluating the Anderson-Darling Distribution" by Marsaglia // for details. // Short cut version of ADinf(z), z>0 (from Marsaglia) // This returns the p-value for Anderson Darling statistic in // the limit as n-> infinity. For finite n, apply the error fix below. double AndersonDarlingInf(double z) { if (z < 2) { return exp(-1.2337141 / z) / sqrt(z) * (2.00012 + (0.247105 - (0.0649821 - (0.0347962 - (0.011672 - 0.00168691 * z) * z) * z) * z) * z); } return exp( - exp(1.0776 - (2.30695 - (0.43424 - (0.082433 - (0.008056 - 0.0003146 * z) * z) * z) * z) * z)); } // Corrects the approximation error in AndersonDarlingInf for small values of n // Add this to AndersonDarlingInf to get a better approximation // (from Marsaglia) double AndersonDarlingErrFix(int n, double x) { if (x > 0.8) { return (-130.2137 + (745.2337 - (1705.091 - (1950.646 - (1116.360 - 255.7844 * x) * x) * x) * x) * x) / n; } double cutoff = 0.01265 + 0.1757 / n; double t; if (x < cutoff) { t = x / cutoff; t = sqrt(t) * (1 - t) * (49 * t - 102); return t * (0.0037 / (n * n) + 0.00078 / n + 0.00006) / n; } else { t = (x - cutoff) / (0.8 - cutoff); t = -0.00022633 + (6.54034 - (14.6538 - (14.458 - (8.259 - 1.91864 * t) * t) * t) * t) * t; return t * (0.04213 + 0.01365 / n) / n; } } // Returns the AndersonDarling p-value given n and the value of the statistic double AndersonDarlingPValue(int n, double z) { double ad = AndersonDarlingInf(z); double errfix = AndersonDarlingErrFix(n, ad); return ad + errfix; } double AndersonDarlingStatistic(int n, double* random_sample) { double ad_sum = 0; for (int i = 0; i < n; i++) { ad_sum += (2*i + 1) * log(random_sample[i] * (1 - random_sample[n-1-i])); } double ad_statistic = - n - 1/static_cast(n) * ad_sum; return ad_statistic; } // Tests if the array of doubles is uniformly distributed. // Returns the p-value of the Anderson Darling Statistic // for the given set of sorted random doubles // See "Evaluating the Anderson-Darling Distribution" by // Marsaglia and Marsaglia for details. double AndersonDarlingTest(int n, double* random_sample) { double ad_statistic = AndersonDarlingStatistic(n, random_sample); LOG(INFO) << StringPrintf("AD stat = %f, n=%d\n", ad_statistic, n); double p = AndersonDarlingPValue(n, ad_statistic); return p; } // Test the AD Test. The value of the statistic should go to zero as n->infty // Not run as part of regular tests void ADTestTest(int n) { scoped_array random_sample(new double[n]); for (int i = 0; i < n; i++) { random_sample[i] = (i+0.01)/n; } sort(random_sample.get(), random_sample.get() + n); double ad_stat = AndersonDarlingStatistic(n, random_sample.get()); LOG(INFO) << StringPrintf("Testing the AD test. n=%d, ad_stat = %f", n, ad_stat); } // Print the CDF of the distribution of the Anderson-Darling Statistic // Used for checking the Anderson-Darling Test // Not run as part of regular tests void ADCDF() { for (int i = 1; i < 40; i++) { double x = i/10.0; LOG(INFO) << "x= " << x << " adpv= " << AndersonDarlingPValue(100, x) << ", " << AndersonDarlingPValue(1000, x); } } // Testing that NextRandom generates uniform // random numbers. // Applies the Anderson-Darling test for uniformity void TestNextRandom(int n) { tcmalloc::Sampler sampler; sampler.Init(1); uint64_t x = 1; // This assumes that the prng returns 48 bit numbers uint64_t max_prng_value = static_cast(1)<<48; // Initialize for (int i = 1; i <= 20; i++) { // 20 mimics sampler.Init() x = sampler.NextRandom(x); } scoped_array int_random_sample(new uint64_t[n]); // Collect samples for (int i = 0; i < n; i++) { int_random_sample[i] = x; x = sampler.NextRandom(x); } // First sort them... sort(int_random_sample.get(), int_random_sample.get() + n); scoped_array random_sample(new double[n]); // Convert them to uniform randoms (in the range [0,1]) for (int i = 0; i < n; i++) { random_sample[i] = static_cast(int_random_sample[i])/max_prng_value; } // Now compute the Anderson-Darling statistic double ad_pvalue = AndersonDarlingTest(n, random_sample.get()); LOG(INFO) << StringPrintf("pvalue for AndersonDarlingTest " "with n= %d is p= %f\n", n, ad_pvalue); CHECK_GT(min(ad_pvalue, 1 - ad_pvalue), 0.0001); // << StringPrintf("prng is not uniform, %d\n", n); } TEST(Sampler, TestNextRandom_MultipleValues) { TestNextRandom(10); // Check short-range correlation TestNextRandom(100); TestNextRandom(1000); TestNextRandom(10000); // Make sure there's no systematic error } // Tests that PickNextSamplePeriod generates // geometrically distributed random numbers. // First converts to uniforms then applied the // Anderson-Darling test for uniformity. void TestPickNextSample(int n) { tcmalloc::Sampler sampler; sampler.Init(1); scoped_array int_random_sample(new uint64_t[n]); int sample_period = sampler.GetSamplePeriod(); int ones_count = 0; for (int i = 0; i < n; i++) { int_random_sample[i] = sampler.PickNextSamplingPoint(); CHECK_GE(int_random_sample[i], 1); if (int_random_sample[i] == 1) { ones_count += 1; } CHECK_LT(ones_count, 4); // << " out of " << i << " samples."; } // First sort them... sort(int_random_sample.get(), int_random_sample.get() + n); scoped_array random_sample(new double[n]); // Convert them to uniform random numbers // by applying the geometric CDF for (int i = 0; i < n; i++) { random_sample[i] = 1 - exp(-static_cast(int_random_sample[i]) / sample_period); } // Now compute the Anderson-Darling statistic double geom_ad_pvalue = AndersonDarlingTest(n, random_sample.get()); LOG(INFO) << StringPrintf("pvalue for geometric AndersonDarlingTest " "with n= %d is p= %f\n", n, geom_ad_pvalue); CHECK_GT(min(geom_ad_pvalue, 1 - geom_ad_pvalue), 0.0001); // << "PickNextSamplingPoint does not produce good " // "geometric/exponential random numbers\n"; } TEST(Sampler, TestPickNextSample_MultipleValues) { TestPickNextSample(10); // Make sure the first few are good (enough) TestPickNextSample(100); TestPickNextSample(1000); TestPickNextSample(10000); // Make sure there's no systematic error } // This is superceeded by the Anderson-Darling Test // and it not run now. // Tests how fast nearby values are spread out with LRand64 // The purpose of this code is to determine how many // steps to apply to the seed during initialization void TestLRand64Spread() { tcmalloc::Sampler sampler; sampler.Init(1); uint64_t current_value; printf("Testing LRand64 Spread\n"); for (int i = 1; i < 10; i++) { printf("%d ", i); current_value = i; for (int j = 1; j < 100; j++) { current_value = sampler.NextRandom(current_value); } LOG(INFO) << current_value; } } // Test for Fastlog2 code // We care about the percentage error because we're using this // for choosing step sizes, so "close" is relative to the size of // the step we would get if we used the built-in log function TEST(Sampler, FastLog2) { tcmalloc::Sampler sampler; sampler.Init(1); double max_ratio_error = 0; for (double d = -1021.9; d < 1; d+= 0.13124235) { double e = pow(2.0, d); double truelog = log(e) / log(2.0); // log_2(e) double fastlog = sampler.FastLog2(e); max_ratio_error = max(max_ratio_error, max(truelog/fastlog-1, fastlog/truelog-1)); CHECK_LE(max_ratio_error, 0.01); // << StringPrintf("d = %f, e=%f, truelog = %f, fastlog= %f\n", // d, e, truelog, fastlog); } LOG(INFO) << StringPrintf("Fastlog2: max_ratio_error = %f\n", max_ratio_error); } // Futher tests bool CheckMean(size_t mean, int num_samples) { tcmalloc::Sampler sampler; sampler.Init(1); size_t total = 0; for (int i = 0; i < num_samples; i++) { total += sampler.PickNextSamplingPoint(); } double empirical_mean = total / static_cast(num_samples); double expected_sd = mean / pow(num_samples * 1.0, 0.5); return(fabs(mean-empirical_mean) < expected_sd * kSigmas); } // Prints a sequence so you can look at the distribution void OutputSequence(int sequence_length) { tcmalloc::Sampler sampler; sampler.Init(1); size_t next_step; for (int i = 0; i< sequence_length; i++) { next_step = sampler.PickNextSamplingPoint(); LOG(INFO) << next_step; } } double StandardDeviationsErrorInSample( int total_samples, int picked_samples, int alloc_size, int sampling_interval) { double p = 1 - exp(-(static_cast(alloc_size) / sampling_interval)); double expected_samples = total_samples * p; double sd = pow(p*(1-p)*total_samples, 0.5); return((picked_samples - expected_samples) / sd); } TEST(Sampler, LargeAndSmallAllocs_CombinedTest) { tcmalloc::Sampler sampler; sampler.Init(1); int counter_big = 0; int counter_small = 0; int size_big = 129*8*1024+1; int size_small = 1024*8; int num_iters = 128*4*8; // Allocate in mixed chunks for (int i = 0; i < num_iters; i++) { if (sampler.SampleAllocation(size_big)) { counter_big += 1; } for (int i = 0; i < 129; i++) { if (sampler.SampleAllocation(size_small)) { counter_small += 1; } } } // Now test that there are the right number of each double large_allocs_sds = StandardDeviationsErrorInSample(num_iters, counter_big, size_big, kSamplingInterval); double small_allocs_sds = StandardDeviationsErrorInSample(num_iters*129, counter_small, size_small, kSamplingInterval); LOG(INFO) << StringPrintf("large_allocs_sds = %f\n", large_allocs_sds); LOG(INFO) << StringPrintf("small_allocs_sds = %f\n", small_allocs_sds); CHECK_LE(fabs(large_allocs_sds), kSigmas); CHECK_LE(fabs(small_allocs_sds), kSigmas); } // Tests whether the mean is about right over 1000 samples TEST(Sampler, IsMeanRight) { CHECK(CheckMean(kSamplingInterval, 1000)); } // This flag is for the OldSampler class to use const int64 FLAGS_mock_tcmalloc_sample_parameter = 1<<19; // A cut down and slightly refactored version of the old Sampler class OldSampler { public: void Init(uint32_t seed); void Cleanup() {} // Record allocation of "k" bytes. Return true iff allocation // should be sampled bool SampleAllocation(size_t k); // Generate a geometric with mean 1M (or FLAG value) void PickNextSample(size_t k); // Initialize the statics for the Sample class static void InitStatics() { sample_period = 1048583; } size_t bytes_until_sample_; private: uint32_t rnd_; // Cheap random number generator static uint64_t sample_period; // Should be a prime just above a power of 2: // 2, 5, 11, 17, 37, 67, 131, 257, // 521, 1031, 2053, 4099, 8209, 16411, // 32771, 65537, 131101, 262147, 524309, 1048583, // 2097169, 4194319, 8388617, 16777259, 33554467 }; // Statics for OldSampler uint64_t OldSampler::sample_period; void OldSampler::Init(uint32_t seed) { // Initialize PRNG -- run it for a bit to get to good values if (seed != 0) { rnd_ = seed; } else { rnd_ = 12345; } bytes_until_sample_ = 0; for (int i = 0; i < 100; i++) { PickNextSample(sample_period * 2); } }; // A cut-down version of the old PickNextSampleRoutine void OldSampler::PickNextSample(size_t k) { // Make next "random" number // x^32+x^22+x^2+x^1+1 is a primitive polynomial for random numbers static const uint32_t kPoly = (1 << 22) | (1 << 2) | (1 << 1) | (1 << 0); uint32_t r = rnd_; rnd_ = (r << 1) ^ ((static_cast(r) >> 31) & kPoly); // Next point is "rnd_ % (sample_period)". I.e., average // increment is "sample_period/2". const int flag_value = FLAGS_mock_tcmalloc_sample_parameter; static int last_flag_value = -1; if (flag_value != last_flag_value) { // There should be a spinlock here, but this code is // for benchmarking only. sample_period = 1048583; last_flag_value = flag_value; } bytes_until_sample_ += rnd_ % sample_period; if (k > (static_cast(-1) >> 2)) { // If the user has asked for a huge allocation then it is possible // for the code below to loop infinitely. Just return (note that // this throws off the sampling accuracy somewhat, but a user who // is allocating more than 1G of memory at a time can live with a // minor inaccuracy in profiling of small allocations, and also // would rather not wait for the loop below to terminate). return; } while (bytes_until_sample_ < k) { // Increase bytes_until_sample_ by enough average sampling periods // (sample_period >> 1) to allow us to sample past the current // allocation. bytes_until_sample_ += (sample_period >> 1); } bytes_until_sample_ -= k; } inline bool OldSampler::SampleAllocation(size_t k) { if (bytes_until_sample_ < k) { PickNextSample(k); return true; } else { bytes_until_sample_ -= k; return false; } } // This checks that the stated maximum value for the // tcmalloc_sample_parameter flag never overflows bytes_until_sample_ TEST(Sampler, bytes_until_sample_Overflow_Underflow) { tcmalloc::Sampler sampler; sampler.Init(1); uint64_t one = 1; // sample_parameter = 0; // To test the edge case uint64_t sample_parameter_array[4] = {0, 1, one<<19, one<<58}; for (int i = 0; i < 4; i++) { uint64_t sample_parameter = sample_parameter_array[i]; LOG(INFO) << "sample_parameter = " << sample_parameter; double sample_scaling = - log(2.0) * sample_parameter; // Take the top 26 bits as the random number // (This plus the 1<<26 sampling bound give a max step possible of // 1209424308 bytes.) const uint64_t prng_mod_power = 48; // Number of bits in prng // First, check the largest_prng value uint64_t largest_prng_value = (static_cast(1)<<48) - 1; double q = (largest_prng_value >> (prng_mod_power - 26)) + 1.0; LOG(INFO) << StringPrintf("q = %f\n", q); LOG(INFO) << StringPrintf("FastLog2(q) = %f\n", sampler.FastLog2(q)); LOG(INFO) << StringPrintf("log2(q) = %f\n", log(q)/log(2.0)); // Replace min(sampler.FastLog2(q) - 26, 0.0) with // (sampler.FastLog2(q) - 26.000705) when using that optimization uint64_t smallest_sample_step = static_cast(min(sampler.FastLog2(q) - 26, 0.0) * sample_scaling + 1); LOG(INFO) << "Smallest sample step is " << smallest_sample_step; uint64_t cutoff = static_cast(10) * (sample_parameter/(one<<24) + 1); LOG(INFO) << "Acceptable value is < " << cutoff; // This checks that the answer is "small" and positive CHECK_LE(smallest_sample_step, cutoff); // Next, check with the smallest prng value uint64_t smallest_prng_value = 0; q = (smallest_prng_value >> (prng_mod_power - 26)) + 1.0; LOG(INFO) << StringPrintf("q = %f\n", q); // Replace min(sampler.FastLog2(q) - 26, 0.0) with // (sampler.FastLog2(q) - 26.000705) when using that optimization uint64_t largest_sample_step = static_cast(min(sampler.FastLog2(q) - 26, 0.0) * sample_scaling + 1); LOG(INFO) << "Largest sample step is " << largest_sample_step; CHECK_LE(largest_sample_step, one<<63); CHECK_GE(largest_sample_step, smallest_sample_step); } } // Test that NextRand is in the right range. Unfortunately, this is a // stochastic test which could miss problems. TEST(Sampler, NextRand_range) { tcmalloc::Sampler sampler; sampler.Init(1); uint64_t one = 1; // The next number should be (one << 48) - 1 uint64_t max_value = (one << 48) - 1; uint64_t x = (one << 55); int n = 22; // 27; LOG(INFO) << "Running sampler.NextRandom 1<<" << n << " times"; for (int i = 1; i <= (1<>27); i++) { // 20 mimics sampler.Init() rnd = sampler.NextRandom(rnd); CHECK_LE(rnd, max_value); double q = (rnd >> (prng_mod_power - 26)) + 1.0; CHECK_GE(q, 0); // << rnd << " " << prng_mod_power; } // Test some potentially out of bounds value for rnd for (int i = 1; i <= 66; i++) { rnd = one << i; double q = (rnd >> (prng_mod_power - 26)) + 1.0; LOG(INFO) << "rnd = " << rnd << " i=" << i << " q=" << q; CHECK_GE(q, 0); // << " rnd=" << rnd << " i=" << i << " prng_mod_power" << prng_mod_power; } } void test_arithmetic(uint64_t rnd) { const uint64_t prng_mod_power = 48; // Number of bits in prng uint64_t shifted_rnd = rnd >> (prng_mod_power - 26); CHECK_GE(shifted_rnd, 0); CHECK_LT(shifted_rnd, (1<<26)); LOG(INFO) << shifted_rnd; LOG(INFO) << static_cast(shifted_rnd); CHECK_GE(static_cast(static_cast(shifted_rnd)), 0); // << " rnd=" << rnd << " srnd=" << shifted_rnd; CHECK_GE(static_cast(shifted_rnd), 0); // << " rnd=" << rnd << " srnd=" << shifted_rnd; double q = static_cast(shifted_rnd) + 1.0; CHECK_GT(q, 0); } // Tests certain arithmetic operations to make sure they compute what we // expect them too (for testing across different platforms) // know bad values under with -c dbg --cpu piii for _some_ binaries: // rnd=227453640600554 // shifted_rnd=54229173 // (hard to reproduce) TEST(Sampler, arithmetic_2) { uint64_t rnd = 227453640600554LL; test_arithmetic(rnd); } // It's not really a test, but it's good to know TEST(Sample, size_of_class) { tcmalloc::Sampler sampler; sampler.Init(1); LOG(INFO) << "Size of Sampler class is: " << sizeof(tcmalloc::Sampler); LOG(INFO) << "Size of Sampler object is: " << sizeof(sampler); } // Make sure sampling is enabled, or the tests won't work right. DECLARE_int64(tcmalloc_sample_parameter); int main(int argc, char **argv) { if (FLAGS_tcmalloc_sample_parameter == 0) FLAGS_tcmalloc_sample_parameter = 524288; return RUN_ALL_TESTS(); } gperftools-2.4/src/tests/sampling_test.cc0000644000000000000000000000571012440704174015551 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // This tests ReadStackTraces and ReadGrowthStackTraces. It does this // by doing a bunch of allocations and then calling those functions. // A driver shell-script can call this, and then call pprof, and // verify the expected output. The output is written to // argv[1].heap and argv[1].growth #include "config_for_unittests.h" #include #include #include #include "base/logging.h" #include using std::string; extern "C" void* AllocateAllocate() ATTRIBUTE_NOINLINE; extern "C" void* AllocateAllocate() { // The VLOG's are mostly to discourage inlining VLOG(1, "Allocating some more"); void* p = malloc(10000); VLOG(1, "Done allocating"); return p; } static void WriteStringToFile(const string& s, const string& filename) { FILE* fp = fopen(filename.c_str(), "w"); fwrite(s.data(), 1, s.length(), fp); fclose(fp); } int main(int argc, char** argv) { if (argc < 2) { fprintf(stderr, "USAGE: %s \n", argv[0]); exit(1); } for (int i = 0; i < 8000; i++) { AllocateAllocate(); } string s; MallocExtension::instance()->GetHeapSample(&s); WriteStringToFile(s, string(argv[1]) + ".heap"); s.clear(); MallocExtension::instance()->GetHeapGrowthStacks(&s); WriteStringToFile(s, string(argv[1]) + ".growth"); return 0; } gperftools-2.4/src/tests/sampling_test.sh0000755000000000000000000000730412372001603015571 00000000000000#!/bin/sh # Copyright (c) 2008, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # --- # Author: Craig Silverstein # # This is a test that tcmalloc creates, and pprof reads, sampling data # correctly: both for the heap profile (ReadStackTraces) and for # growth in the heap sized (ReadGrowthStackTraces). BINDIR="${BINDIR:-.}" PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}" if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then echo "USAGE: $0 [unittest dir] [path to pprof]" echo " By default, unittest_dir=$BINDIR, pprof_path=$PPROF_PATH" exit 1 fi SAMPLING_TEST="${1:-$BINDIR/sampling_test}" PPROF="${2:-$PPROF_PATH}" OUTDIR="/tmp/sampling_test_dir" # libtool is annoying, and puts the actual executable in a different # directory, replacing the seeming-executable with a shell script. # We use the error output of sampling_test to indicate its real location SAMPLING_TEST_BINARY=`"$SAMPLING_TEST" 2>&1 | awk '/USAGE/ {print $2; exit;}'` # A kludge for cygwin. Unfortunately, 'test -f' says that 'foo' exists # even when it doesn't, and only foo.exe exists. Other unix utilities # (like nm) need you to say 'foo.exe'. We use one such utility, cat, to # see what the *real* binary name is. if ! cat "$SAMPLING_TEST_BINARY" >/dev/null 2>&1; then SAMPLING_TEST_BINARY="$SAMPLING_TEST_BINARY".exe fi die() { # runs the command given as arguments, and then dies. echo "FAILED. Output from $@" echo "----" "$@" echo "----" exit 1 } rm -rf "$OUTDIR" || die "Unable to delete $OUTDIR" mkdir "$OUTDIR" || die "Unable to create $OUTDIR" # This puts the output into out.heap and out.growth. It allocates # 8*10^7 bytes of memory, which is 76M. Because we sample, the # estimate may be a bit high or a bit low: we accept anything from # 50M to 99M. "$SAMPLING_TEST" "$OUTDIR/out" echo "Testing heap output..." "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.heap" \ | grep '[5-9][0-9]\.[0-9][ 0-9.%]*_*AllocateAllocate' >/dev/null \ || die "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.heap" echo "OK" echo "Testing growth output..." "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.growth" \ | grep '[5-9][0-9]\.[0-9][ 0-9.%]*_*AllocateAllocate' >/dev/null \ || die "$PPROF" --text "$SAMPLING_TEST_BINARY" "$OUTDIR/out.growth" echo "OK" echo "PASS" gperftools-2.4/src/tests/simple_compat_test.cc0000644000000000000000000000542412440704174016575 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2012, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // This just verifies that we can compile code that #includes stuff // via the backwards-compatibility 'google/' #include-dir. It does // not include config.h on purpose, to better simulate a perftools // client. #include #include #include #include #include #include #include #include #include #include #include // We don't link in -lprofiler for this test, so be sure not to make // any function calls that require the cpu-profiler code. The // heap-profiler is ok. HeapLeakChecker::Disabler* heap_checker_h; void (*heap_profiler_h)(const char*) = &HeapProfilerStart; MallocExtension::Ownership malloc_extension_h; MallocExtension_Ownership malloc_extension_c_h; MallocHook::NewHook* malloc_hook_h; MallocHook_NewHook* malloc_hook_c_h; ProfilerOptions* profiler_h; int (*stacktrace_h)(void**, int, int) = &GetStackTrace; void* (*tcmalloc_h)(size_t) = &tc_new; int main(int argc, char** argv) { printf("PASS\n"); return 0; } gperftools-2.4/src/tests/stack_trace_table_test.cc0000644000000000000000000000620612440704174017372 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright 2009 Google Inc. All Rights Reserved. // Author: fikes@google.com (Andrew Fikes) // // Use of this source code is governed by a BSD-style license that can // be found in the LICENSE file. #include "config_for_unittests.h" #include // for puts() #include "stack_trace_table.h" #include "base/logging.h" #include "base/spinlock.h" #include "static_vars.h" #undef ARRAYSIZE // may be defined on, eg, windows #define ARRAYSIZE(a) ( sizeof(a) / sizeof(*(a)) ) static void CheckTracesAndReset(tcmalloc::StackTraceTable* table, const uintptr_t* expected, int len) { void** entries = table->ReadStackTracesAndClear(); for (int i = 0; i < len; ++i) { CHECK_EQ(reinterpret_cast(entries[i]), expected[i]); } delete[] entries; } static void AddTrace(tcmalloc::StackTraceTable* table, const tcmalloc::StackTrace& t) { // Normally we'd need this lock, but since the test is single-threaded // we don't. I comment it out on windows because the DLL-decl thing // is really annoying in this case. #ifndef _MSC_VER SpinLockHolder h(tcmalloc::Static::pageheap_lock()); #endif table->AddTrace(t); } int main(int argc, char **argv) { tcmalloc::StackTraceTable table; // Empty table CHECK_EQ(table.depth_total(), 0); CHECK_EQ(table.bucket_total(), 0); static const uintptr_t k1[] = {0}; CheckTracesAndReset(&table, k1, ARRAYSIZE(k1)); tcmalloc::StackTrace t1; t1.size = static_cast(1024); t1.depth = static_cast(2); t1.stack[0] = reinterpret_cast(1); t1.stack[1] = reinterpret_cast(2); tcmalloc::StackTrace t2; t2.size = static_cast(512); t2.depth = static_cast(2); t2.stack[0] = reinterpret_cast(2); t2.stack[1] = reinterpret_cast(1); // Table w/ just t1 AddTrace(&table, t1); CHECK_EQ(table.depth_total(), 2); CHECK_EQ(table.bucket_total(), 1); static const uintptr_t k2[] = {1, 1024, 2, 1, 2, 0}; CheckTracesAndReset(&table, k2, ARRAYSIZE(k2)); // Table w/ t1, t2 AddTrace(&table, t1); AddTrace(&table, t2); CHECK_EQ(table.depth_total(), 4); CHECK_EQ(table.bucket_total(), 2); static const uintptr_t k3[] = {1, 1024, 2, 1, 2, 1, 512, 2, 2, 1, 0}; CheckTracesAndReset(&table, k3, ARRAYSIZE(k3)); // Table w/ 2 x t1, 1 x t2 AddTrace(&table, t1); AddTrace(&table, t2); AddTrace(&table, t1); CHECK_EQ(table.depth_total(), 4); CHECK_EQ(table.bucket_total(), 2); static const uintptr_t k4[] = {2, 2048, 2, 1, 2, 1, 512, 2, 2, 1, 0}; CheckTracesAndReset(&table, k4, ARRAYSIZE(k4)); // Same stack as t1, but w/ different size tcmalloc::StackTrace t3; t3.size = static_cast(2); t3.depth = static_cast(2); t3.stack[0] = reinterpret_cast(1); t3.stack[1] = reinterpret_cast(2); // Table w/ t1, t3 AddTrace(&table, t1); AddTrace(&table, t3); CHECK_EQ(table.depth_total(), 2); CHECK_EQ(table.bucket_total(), 1); static const uintptr_t k5[] = {2, 1026, 2, 1, 2, 0}; CheckTracesAndReset(&table, k5, ARRAYSIZE(k5)); puts("PASS"); return 0; } gperftools-2.4/src/tests/stacktrace_unittest.cc0000644000000000000000000001724512372001603016760 00000000000000// Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "config_for_unittests.h" #ifdef HAVE_EXECINFO_H #include #endif #include #include #include "base/commandlineflags.h" #include "base/logging.h" #include namespace { // Obtain a backtrace, verify that the expected callers are present in the // backtrace, and maybe print the backtrace to stdout. // The sequence of functions whose return addresses we expect to see in the // backtrace. const int BACKTRACE_STEPS = 6; struct AddressRange { const void *start, *end; }; // Expected function [start,end] range. AddressRange expected_range[BACKTRACE_STEPS]; #if __GNUC__ // Using GCC extension: address of a label can be taken with '&&label'. // Start should be a label somewhere before recursive call, end somewhere // after it. #define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange) \ do { \ (prange)->start = &&start_label; \ (prange)->end = &&end_label; \ CHECK_LT((prange)->start, (prange)->end); \ } while (0) // This macro expands into "unmovable" code (opaque to GCC), and that // prevents GCC from moving a_label up or down in the code. // Without it, there is no code following the 'end' label, and GCC // (4.3.1, 4.4.0) thinks it safe to assign &&end an address that is before // the recursive call. #define DECLARE_ADDRESS_LABEL(a_label) \ a_label: do { __asm__ __volatile__(""); } while (0) // Gcc 4.4.0 may split function into multiple chunks, and the chunk // performing recursive call may end up later in the code then the return // instruction (this actually happens with FDO). // Adjust function range from __builtin_return_address. #define ADJUST_ADDRESS_RANGE_FROM_RA(prange) \ do { \ void *ra = __builtin_return_address(0); \ CHECK_LT((prange)->start, ra); \ if (ra > (prange)->end) { \ printf("Adjusting range from %p..%p to %p..%p\n", \ (prange)->start, (prange)->end, \ (prange)->start, ra); \ (prange)->end = ra; \ } \ } while (0) #else // Assume the Check* functions below are not longer than 256 bytes. #define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange) \ do { \ (prange)->start = reinterpret_cast(&fn); \ (prange)->end = reinterpret_cast(&fn) + 256; \ } while (0) #define DECLARE_ADDRESS_LABEL(a_label) do { } while (0) #define ADJUST_ADDRESS_RANGE_FROM_RA(prange) do { } while (0) #endif // __GNUC__ //-----------------------------------------------------------------------// void CheckRetAddrIsInFunction(void *ret_addr, const AddressRange &range) { CHECK_GE(ret_addr, range.start); CHECK_LE(ret_addr, range.end); } //-----------------------------------------------------------------------// void ATTRIBUTE_NOINLINE CheckStackTrace(int); void ATTRIBUTE_NOINLINE CheckStackTraceLeaf(void) { const int STACK_LEN = 10; void *stack[STACK_LEN]; int size; ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[1]); INIT_ADDRESS_RANGE(CheckStackTraceLeaf, start, end, &expected_range[0]); DECLARE_ADDRESS_LABEL(start); size = GetStackTrace(stack, STACK_LEN, 0); printf("Obtained %d stack frames.\n", size); CHECK_GE(size, 1); CHECK_LE(size, STACK_LEN); #ifdef HAVE_EXECINFO_H { char **strings = backtrace_symbols(stack, size); printf("Obtained %d stack frames.\n", size); for (int i = 0; i < size; i++) printf("%s %p\n", strings[i], stack[i]); printf("CheckStackTrace() addr: %p\n", &CheckStackTrace); free(strings); } #endif for (int i = 0; i < BACKTRACE_STEPS; i++) { printf("Backtrace %d: expected: %p..%p actual: %p ... ", i, expected_range[i].start, expected_range[i].end, stack[i]); fflush(stdout); CheckRetAddrIsInFunction(stack[i], expected_range[i]); printf("OK\n"); } DECLARE_ADDRESS_LABEL(end); } //-----------------------------------------------------------------------// /* Dummy functions to make the backtrace more interesting. */ void ATTRIBUTE_NOINLINE CheckStackTrace4(int i) { ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[2]); INIT_ADDRESS_RANGE(CheckStackTrace4, start, end, &expected_range[1]); DECLARE_ADDRESS_LABEL(start); for (int j = i; j >= 0; j--) CheckStackTraceLeaf(); DECLARE_ADDRESS_LABEL(end); } void ATTRIBUTE_NOINLINE CheckStackTrace3(int i) { ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[3]); INIT_ADDRESS_RANGE(CheckStackTrace3, start, end, &expected_range[2]); DECLARE_ADDRESS_LABEL(start); for (int j = i; j >= 0; j--) CheckStackTrace4(j); DECLARE_ADDRESS_LABEL(end); } void ATTRIBUTE_NOINLINE CheckStackTrace2(int i) { ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[4]); INIT_ADDRESS_RANGE(CheckStackTrace2, start, end, &expected_range[3]); DECLARE_ADDRESS_LABEL(start); for (int j = i; j >= 0; j--) CheckStackTrace3(j); DECLARE_ADDRESS_LABEL(end); } void ATTRIBUTE_NOINLINE CheckStackTrace1(int i) { ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[5]); INIT_ADDRESS_RANGE(CheckStackTrace1, start, end, &expected_range[4]); DECLARE_ADDRESS_LABEL(start); for (int j = i; j >= 0; j--) CheckStackTrace2(j); DECLARE_ADDRESS_LABEL(end); } void ATTRIBUTE_NOINLINE CheckStackTrace(int i) { INIT_ADDRESS_RANGE(CheckStackTrace, start, end, &expected_range[5]); DECLARE_ADDRESS_LABEL(start); for (int j = i; j >= 0; j--) CheckStackTrace1(j); DECLARE_ADDRESS_LABEL(end); } } // namespace //-----------------------------------------------------------------------// int main(int argc, char ** argv) { CheckStackTrace(0); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/system-alloc_unittest.cc0000644000000000000000000001210412440704174017246 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Arun Sharma #include "config_for_unittests.h" #include "system-alloc.h" #include #if defined HAVE_STDINT_H #include // to get uintptr_t #elif defined HAVE_INTTYPES_H #include // another place uintptr_t might be defined #endif #include #include #include #include "base/logging.h" // for Check_GEImpl, Check_LTImpl, etc #include // for MallocExtension::instance #include "common.h" // for kAddressBits class ArraySysAllocator : public SysAllocator { public: // Was this allocator invoked at least once? bool invoked_; ArraySysAllocator() : SysAllocator() { ptr_ = 0; invoked_ = false; } void* Alloc(size_t size, size_t *actual_size, size_t alignment) { invoked_ = true; if (size > kArraySize) { return NULL; } void *result = &array_[ptr_]; uintptr_t ptr = reinterpret_cast(result); if (actual_size) { *actual_size = size; } // Try to get more memory for alignment size_t extra = alignment - (ptr & (alignment-1)); size += extra; CHECK_LT(ptr_ + size, kArraySize); if ((ptr & (alignment-1)) != 0) { ptr += alignment - (ptr & (alignment-1)); } ptr_ += size; return reinterpret_cast(ptr); } void DumpStats() { } private: static const int kArraySize = 8 * 1024 * 1024; char array_[kArraySize]; // We allocate the next chunk from here int ptr_; }; const int ArraySysAllocator::kArraySize; ArraySysAllocator a; static void TestBasicInvoked() { MallocExtension::instance()->SetSystemAllocator(&a); // An allocation size that is likely to trigger the system allocator. // XXX: this is implementation specific. char *p = new char[1024 * 1024]; delete [] p; // Make sure that our allocator was invoked. CHECK(a.invoked_); } #if 0 // could port this to various OSs, but won't bother for now TEST(AddressBits, CpuVirtualBits) { // Check that kAddressBits is as least as large as either the number of bits // in a pointer or as the number of virtual bits handled by the processor. // To be effective this test must be run on each processor model. const int kPointerBits = 8 * sizeof(void*); const int kImplementedVirtualBits = NumImplementedVirtualBits(); CHECK_GE(kAddressBits, std::min(kImplementedVirtualBits, kPointerBits)); } #endif static void TestBasicRetryFailTest() { // Check with the allocator still works after a failed allocation. // // There is no way to call malloc and guarantee it will fail. malloc takes a // size_t parameter and the C++ standard does not constrain the size of // size_t. For example, consider an implementation where size_t is 32 bits // and pointers are 64 bits. // // It is likely, though, that sizeof(size_t) == sizeof(void*). In that case, // the first allocation here might succeed but the second allocation must // fail. // // If the second allocation succeeds, you will have to rewrite or // disable this test. // The weird parens are to avoid macro-expansion of 'max' on windows. const size_t kHugeSize = (std::numeric_limits::max)() / 2; void* p1 = malloc(kHugeSize); void* p2 = malloc(kHugeSize); CHECK(p2 == NULL); if (p1 != NULL) free(p1); char* q = new char[1024]; CHECK(q != NULL); delete [] q; } int main(int argc, char** argv) { TestBasicInvoked(); TestBasicRetryFailTest(); printf("PASS\n"); return 0; } gperftools-2.4/src/tests/tcmalloc_unittest.cc0000644000000000000000000013043112440704174016434 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Unittest for the TCMalloc implementation. // // * The test consists of a set of threads. // * Each thread maintains a set of allocated objects, with // a bound on the total amount of data in the set. // * Each allocated object's contents are generated by // hashing the object pointer, and a generation count // in the object. This allows us to easily check for // data corruption. // * At any given step, the thread can do any of the following: // a. Allocate an object // b. Increment an object's generation count and update // its contents. // c. Pass the object to another thread // d. Free an object // Also, at the end of every step, object(s) are freed to maintain // the memory upper-bound. // // If this test is compiled with -DDEBUGALLOCATION, then we don't // run some tests that test the inner workings of tcmalloc and // break on debugallocation: that certain allocations are aligned // in a certain way (even though no standard requires it), and that // realloc() tries to minimize copying (which debug allocators don't // care about). #include "config_for_unittests.h" // Complicated ordering requirements. tcmalloc.h defines (indirectly) // _POSIX_C_SOURCE, which it needs so stdlib.h defines posix_memalign. // unistd.h, on the other hand, requires _POSIX_C_SOURCE to be unset, // at least on FreeBSD, in order to define sbrk. The solution // is to #include unistd.h first. This is safe because unistd.h // doesn't sub-include stdlib.h, so we'll still get posix_memalign // when we #include stdlib.h. Blah. #ifdef HAVE_UNISTD_H #include // for testing sbrk hooks #endif #include "tcmalloc.h" // must come early, to pick up posix_memalign #include #include #include #if defined HAVE_STDINT_H #include // for intptr_t #endif #include // for size_t #ifdef HAVE_FCNTL_H #include // for open; used with mmap-hook test #endif #ifdef HAVE_MMAP #include // for testing mmap hooks #endif #ifdef HAVE_MALLOC_H #include // defines pvalloc/etc on cygwin #endif #include #include #include #include #include #include "base/logging.h" #include "base/simple_mutex.h" #include "gperftools/malloc_hook.h" #include "gperftools/malloc_extension.h" #include "gperftools/tcmalloc.h" #include "thread_cache.h" #include "system-alloc.h" #include "tests/testutil.h" // Windows doesn't define pvalloc and a few other obsolete unix // functions; nor does it define posix_memalign (which is not obsolete). #if defined(_WIN32) # define cfree free // don't bother to try to test these obsolete fns # define valloc malloc # define pvalloc malloc // I'd like to map posix_memalign to _aligned_malloc, but _aligned_malloc // must be paired with _aligned_free (not normal free), which is too // invasive a change to how we allocate memory here. So just bail static bool kOSSupportsMemalign = false; static inline void* Memalign(size_t align, size_t size) { //LOG(FATAL) << "memalign not supported on windows"; exit(1); return NULL; } static inline int PosixMemalign(void** ptr, size_t align, size_t size) { //LOG(FATAL) << "posix_memalign not supported on windows"; exit(1); return -1; } // OS X defines posix_memalign in some OS versions but not others; // it's confusing enough to check that it's easiest to just not to test. #elif defined(__APPLE__) static bool kOSSupportsMemalign = false; static inline void* Memalign(size_t align, size_t size) { //LOG(FATAL) << "memalign not supported on OS X"; exit(1); return NULL; } static inline int PosixMemalign(void** ptr, size_t align, size_t size) { //LOG(FATAL) << "posix_memalign not supported on OS X"; exit(1); return -1; } #else static bool kOSSupportsMemalign = true; static inline void* Memalign(size_t align, size_t size) { return memalign(align, size); } static inline int PosixMemalign(void** ptr, size_t align, size_t size) { return posix_memalign(ptr, align, size); } #endif // On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old // form of the name instead. #ifndef MAP_ANONYMOUS # define MAP_ANONYMOUS MAP_ANON #endif #define LOGSTREAM stdout using std::vector; using std::string; DECLARE_double(tcmalloc_release_rate); DECLARE_int32(max_free_queue_size); // in debugallocation.cc DECLARE_int64(tcmalloc_sample_parameter); namespace testing { static const int FLAGS_numtests = 50000; static const int FLAGS_log_every_n_tests = 50000; // log exactly once // Testing parameters static const int FLAGS_lgmaxsize = 16; // lg() of the max size object to alloc static const int FLAGS_numthreads = 10; // Number of threads static const int FLAGS_threadmb = 4; // Max memory size allocated by thread static const int FLAGS_lg_max_memalign = 18; // lg of max alignment for memalign static const double FLAGS_memalign_min_fraction = 0; // min expected% static const double FLAGS_memalign_max_fraction = 0.4; // max expected% static const double FLAGS_memalign_max_alignment_ratio = 6; // alignment/size // Weights of different operations static const int FLAGS_allocweight = 50; // Weight for picking allocation static const int FLAGS_freeweight = 50; // Weight for picking free static const int FLAGS_updateweight = 10; // Weight for picking update static const int FLAGS_passweight = 1; // Weight for passing object static const int kSizeBits = 8 * sizeof(size_t); static const size_t kMaxSize = ~static_cast(0); static const size_t kMaxSignedSize = ((size_t(1) << (kSizeBits-1)) - 1); static const size_t kNotTooBig = 100000; // We want an allocation that is definitely more than main memory. OS // X has special logic to discard very big allocs before even passing // the request along to the user-defined memory allocator; we're not // interested in testing their logic, so we have to make sure we're // not *too* big. static const size_t kTooBig = kMaxSize - 100000; static int news_handled = 0; // Global array of threads class TesterThread; static TesterThread** threads; // To help with generating random numbers class TestHarness { private: // Information kept per type struct Type { string name; int type; int weight; }; public: TestHarness(int seed) : types_(new vector), total_weight_(0), num_tests_(0) { srandom(seed); } ~TestHarness() { delete types_; } // Add operation type with specified weight. When starting a new // iteration, an operation type is picked with probability // proportional to its weight. // // "type" must be non-negative. // "weight" must be non-negative. void AddType(int type, int weight, const char* name); // Call this to get the type of operation for the next iteration. // It returns a random operation type from the set of registered // operations. Returns -1 if tests should finish. int PickType(); // If n == 0, returns the next pseudo-random number in the range [0 .. 0] // If n != 0, returns the next pseudo-random number in the range [0 .. n) int Uniform(int n) { if (n == 0) { return random() * 0; } else { return random() % n; } } // Pick "base" uniformly from range [0,max_log] and then return // "base" random bits. The effect is to pick a number in the range // [0,2^max_log-1] with bias towards smaller numbers. int Skewed(int max_log) { const int base = random() % (max_log+1); return random() % (1 << base); } private: vector* types_; // Registered types int total_weight_; // Total weight of all types int num_tests_; // Num tests run so far }; void TestHarness::AddType(int type, int weight, const char* name) { Type t; t.name = name; t.type = type; t.weight = weight; types_->push_back(t); total_weight_ += weight; } int TestHarness::PickType() { if (num_tests_ >= FLAGS_numtests) return -1; num_tests_++; assert(total_weight_ > 0); // This is a little skewed if total_weight_ doesn't divide 2^31, but it's close int v = Uniform(total_weight_); int i; for (i = 0; i < types_->size(); i++) { v -= (*types_)[i].weight; if (v < 0) { break; } } assert(i < types_->size()); if ((num_tests_ % FLAGS_log_every_n_tests) == 0) { fprintf(LOGSTREAM, " Test %d out of %d: %s\n", num_tests_, FLAGS_numtests, (*types_)[i].name.c_str()); } return (*types_)[i].type; } class AllocatorState : public TestHarness { public: explicit AllocatorState(int seed) : TestHarness(seed), memalign_fraction_(0) { if (kOSSupportsMemalign) { CHECK_GE(FLAGS_memalign_max_fraction, 0); CHECK_LE(FLAGS_memalign_max_fraction, 1); CHECK_GE(FLAGS_memalign_min_fraction, 0); CHECK_LE(FLAGS_memalign_min_fraction, 1); double delta = FLAGS_memalign_max_fraction - FLAGS_memalign_min_fraction; CHECK_GE(delta, 0); memalign_fraction_ = (Uniform(10000)/10000.0 * delta + FLAGS_memalign_min_fraction); //fprintf(LOGSTREAM, "memalign fraction: %f\n", memalign_fraction_); } } virtual ~AllocatorState() {} // Allocate memory. Randomly choose between malloc() or posix_memalign(). void* alloc(size_t size) { if (Uniform(100) < memalign_fraction_ * 100) { // Try a few times to find a reasonable alignment, or fall back on malloc. for (int i = 0; i < 5; i++) { size_t alignment = 1 << Uniform(FLAGS_lg_max_memalign); if (alignment >= sizeof(intptr_t) && (size < sizeof(intptr_t) || alignment < FLAGS_memalign_max_alignment_ratio * size)) { void *result = reinterpret_cast(static_cast(0x1234)); int err = PosixMemalign(&result, alignment, size); if (err != 0) { CHECK_EQ(err, ENOMEM); } return err == 0 ? result : NULL; } } } return malloc(size); } private: double memalign_fraction_; }; // Info kept per thread class TesterThread { private: // Info kept per allocated object struct Object { char* ptr; // Allocated pointer int size; // Allocated size int generation; // Generation counter of object contents }; Mutex lock_; // For passing in another thread's obj int id_; // My thread id AllocatorState rnd_; // For generating random numbers vector heap_; // This thread's heap vector passed_; // Pending objects passed from others size_t heap_size_; // Current heap size int locks_ok_; // Number of OK TryLock() ops int locks_failed_; // Number of failed TryLock() ops // Type of operations enum Type { ALLOC, FREE, UPDATE, PASS }; // ACM minimal standard random number generator. (re-entrant.) class ACMRandom { int32 seed_; public: explicit ACMRandom(int32 seed) { seed_ = seed; } int32 Next() { const int32 M = 2147483647L; // 2^31-1 const int32 A = 16807; // In effect, we are computing seed_ = (seed_ * A) % M, where M = 2^31-1 uint32 lo = A * (int32)(seed_ & 0xFFFF); uint32 hi = A * (int32)((uint32)seed_ >> 16); lo += (hi & 0x7FFF) << 16; if (lo > M) { lo &= M; ++lo; } lo += hi >> 15; if (lo > M) { lo &= M; ++lo; } return (seed_ = (int32) lo); } }; public: TesterThread(int id) : id_(id), rnd_(id+1), heap_size_(0), locks_ok_(0), locks_failed_(0) { } virtual ~TesterThread() { if (FLAGS_verbose) fprintf(LOGSTREAM, "Thread %2d: locks %6d ok; %6d trylocks failed\n", id_, locks_ok_, locks_failed_); if (locks_ok_ + locks_failed_ >= 1000) { CHECK_LE(locks_failed_, locks_ok_ / 2); } } virtual void Run() { rnd_.AddType(ALLOC, FLAGS_allocweight, "allocate"); rnd_.AddType(FREE, FLAGS_freeweight, "free"); rnd_.AddType(UPDATE, FLAGS_updateweight, "update"); rnd_.AddType(PASS, FLAGS_passweight, "pass"); while (true) { AcquirePassedObjects(); switch (rnd_.PickType()) { case ALLOC: AllocateObject(); break; case FREE: FreeObject(); break; case UPDATE: UpdateObject(); break; case PASS: PassObject(); break; case -1: goto done; default: assert(NULL == "Unknown type"); } ShrinkHeap(); } done: DeleteHeap(); } // Allocate a new object void AllocateObject() { Object object; object.size = rnd_.Skewed(FLAGS_lgmaxsize); object.ptr = static_cast(rnd_.alloc(object.size)); CHECK(object.ptr); object.generation = 0; FillContents(&object); heap_.push_back(object); heap_size_ += object.size; } // Mutate a random object void UpdateObject() { if (heap_.empty()) return; const int index = rnd_.Uniform(heap_.size()); CheckContents(heap_[index]); heap_[index].generation++; FillContents(&heap_[index]); } // Free a random object void FreeObject() { if (heap_.empty()) return; const int index = rnd_.Uniform(heap_.size()); Object object = heap_[index]; CheckContents(object); free(object.ptr); heap_size_ -= object.size; heap_[index] = heap_[heap_.size()-1]; heap_.pop_back(); } // Delete all objects in the heap void DeleteHeap() { while (!heap_.empty()) { FreeObject(); } } // Free objects until our heap is small enough void ShrinkHeap() { while (heap_size_ > FLAGS_threadmb << 20) { assert(!heap_.empty()); FreeObject(); } } // Pass a random object to another thread void PassObject() { // Pick object to pass if (heap_.empty()) return; const int index = rnd_.Uniform(heap_.size()); Object object = heap_[index]; CheckContents(object); // Pick thread to pass const int tid = rnd_.Uniform(FLAGS_numthreads); TesterThread* thread = threads[tid]; if (thread->lock_.TryLock()) { // Pass the object locks_ok_++; thread->passed_.push_back(object); thread->lock_.Unlock(); heap_size_ -= object.size; heap_[index] = heap_[heap_.size()-1]; heap_.pop_back(); } else { locks_failed_++; } } // Grab any objects passed to this thread by another thread void AcquirePassedObjects() { // We do not create unnecessary contention by always using // TryLock(). Plus we unlock immediately after swapping passed // objects into a local vector. vector copy; { // Locking scope if (!lock_.TryLock()) { locks_failed_++; return; } locks_ok_++; swap(copy, passed_); lock_.Unlock(); } for (int i = 0; i < copy.size(); ++i) { const Object& object = copy[i]; CheckContents(object); heap_.push_back(object); heap_size_ += object.size; } } // Fill object contents according to ptr/generation void FillContents(Object* object) { ACMRandom r(reinterpret_cast(object->ptr) & 0x7fffffff); for (int i = 0; i < object->generation; ++i) { r.Next(); } const char c = static_cast(r.Next()); memset(object->ptr, c, object->size); } // Check object contents void CheckContents(const Object& object) { ACMRandom r(reinterpret_cast(object.ptr) & 0x7fffffff); for (int i = 0; i < object.generation; ++i) { r.Next(); } // For large objects, we just check a prefix/suffix const char expected = static_cast(r.Next()); const int limit1 = object.size < 32 ? object.size : 32; const int start2 = limit1 > object.size - 32 ? limit1 : object.size - 32; for (int i = 0; i < limit1; ++i) { CHECK_EQ(object.ptr[i], expected); } for (int i = start2; i < object.size; ++i) { CHECK_EQ(object.ptr[i], expected); } } }; static void RunThread(int thread_id) { threads[thread_id]->Run(); } static void TryHugeAllocation(size_t s, AllocatorState* rnd) { void* p = rnd->alloc(s); CHECK(p == NULL); // huge allocation s should fail! } static void TestHugeAllocations(AllocatorState* rnd) { // Check that asking for stuff tiny bit smaller than largest possible // size returns NULL. for (size_t i = 0; i < 70000; i += rnd->Uniform(20)) { TryHugeAllocation(kMaxSize - i, rnd); } // Asking for memory sizes near signed/unsigned boundary (kMaxSignedSize) // might work or not, depending on the amount of virtual memory. #ifndef DEBUGALLOCATION // debug allocation takes forever for huge allocs for (size_t i = 0; i < 100; i++) { void* p = NULL; p = rnd->alloc(kMaxSignedSize + i); if (p) free(p); // if: free(NULL) is not necessarily defined p = rnd->alloc(kMaxSignedSize - i); if (p) free(p); } #endif // Check that ReleaseFreeMemory has no visible effect (aka, does not // crash the test): MallocExtension* inst = MallocExtension::instance(); CHECK(inst); inst->ReleaseFreeMemory(); } static void TestCalloc(size_t n, size_t s, bool ok) { char* p = reinterpret_cast(calloc(n, s)); if (FLAGS_verbose) fprintf(LOGSTREAM, "calloc(%" PRIxS ", %" PRIxS "): %p\n", n, s, p); if (!ok) { CHECK(p == NULL); // calloc(n, s) should not succeed } else { CHECK(p != NULL); // calloc(n, s) should succeed for (int i = 0; i < n*s; i++) { CHECK(p[i] == '\0'); } free(p); } } // This makes sure that reallocing a small number of bytes in either // direction doesn't cause us to allocate new memory. static void TestRealloc() { #ifndef DEBUGALLOCATION // debug alloc doesn't try to minimize reallocs // When sampling, we always allocate in units of page-size, which // makes reallocs of small sizes do extra work (thus, failing these // checks). Since sampling is random, we turn off sampling to make // sure that doesn't happen to us here. const int64 old_sample_parameter = FLAGS_tcmalloc_sample_parameter; FLAGS_tcmalloc_sample_parameter = 0; // turn off sampling int start_sizes[] = { 100, 1000, 10000, 100000 }; int deltas[] = { 1, -2, 4, -8, 16, -32, 64, -128 }; for (int s = 0; s < sizeof(start_sizes)/sizeof(*start_sizes); ++s) { void* p = malloc(start_sizes[s]); CHECK(p); // The larger the start-size, the larger the non-reallocing delta. for (int d = 0; d < (s+1) * 2; ++d) { void* new_p = realloc(p, start_sizes[s] + deltas[d]); CHECK(p == new_p); // realloc should not allocate new memory } // Test again, but this time reallocing smaller first. for (int d = 0; d < s*2; ++d) { void* new_p = realloc(p, start_sizes[s] - deltas[d]); CHECK(p == new_p); // realloc should not allocate new memory } free(p); } FLAGS_tcmalloc_sample_parameter = old_sample_parameter; #endif } static void TestNewHandler() throw (std::bad_alloc) { ++news_handled; throw std::bad_alloc(); } static void TestOneNew(void* (*func)(size_t)) { // success test try { void* ptr = (*func)(kNotTooBig); if (0 == ptr) { fprintf(LOGSTREAM, "allocation should not have failed.\n"); abort(); } } catch (...) { fprintf(LOGSTREAM, "allocation threw unexpected exception.\n"); abort(); } // failure test // we should always receive a bad_alloc exception try { (*func)(kTooBig); fprintf(LOGSTREAM, "allocation should have failed.\n"); abort(); } catch (const std::bad_alloc&) { // correct } catch (...) { fprintf(LOGSTREAM, "allocation threw unexpected exception.\n"); abort(); } } static void TestNew(void* (*func)(size_t)) { news_handled = 0; // test without new_handler: std::new_handler saved_handler = std::set_new_handler(0); TestOneNew(func); // test with new_handler: std::set_new_handler(TestNewHandler); TestOneNew(func); if (news_handled != 1) { fprintf(LOGSTREAM, "new_handler was not called.\n"); abort(); } std::set_new_handler(saved_handler); } static void TestOneNothrowNew(void* (*func)(size_t, const std::nothrow_t&)) { // success test try { void* ptr = (*func)(kNotTooBig, std::nothrow); if (0 == ptr) { fprintf(LOGSTREAM, "allocation should not have failed.\n"); abort(); } } catch (...) { fprintf(LOGSTREAM, "allocation threw unexpected exception.\n"); abort(); } // failure test // we should always receive a bad_alloc exception try { if ((*func)(kTooBig, std::nothrow) != 0) { fprintf(LOGSTREAM, "allocation should have failed.\n"); abort(); } } catch (...) { fprintf(LOGSTREAM, "nothrow allocation threw unexpected exception.\n"); abort(); } } static void TestNothrowNew(void* (*func)(size_t, const std::nothrow_t&)) { news_handled = 0; // test without new_handler: std::new_handler saved_handler = std::set_new_handler(0); TestOneNothrowNew(func); // test with new_handler: std::set_new_handler(TestNewHandler); TestOneNothrowNew(func); if (news_handled != 1) { fprintf(LOGSTREAM, "nothrow new_handler was not called.\n"); abort(); } std::set_new_handler(saved_handler); } // These are used as callbacks by the sanity-check. Set* and Reset* // register the hook that counts how many times the associated memory // function is called. After each such call, call Verify* to verify // that we used the tcmalloc version of the call, and not the libc. // Note the ... in the hook signature: we don't care what arguments // the hook takes. #define MAKE_HOOK_CALLBACK(hook_type) \ static volatile int g_##hook_type##_calls = 0; \ static void IncrementCallsTo##hook_type(...) { \ g_##hook_type##_calls++; \ } \ static void Verify##hook_type##WasCalled() { \ CHECK_GT(g_##hook_type##_calls, 0); \ g_##hook_type##_calls = 0; /* reset for next call */ \ } \ static void Set##hook_type() { \ CHECK(MallocHook::Add##hook_type( \ (MallocHook::hook_type)&IncrementCallsTo##hook_type)); \ } \ static void Reset##hook_type() { \ CHECK(MallocHook::Remove##hook_type( \ (MallocHook::hook_type)&IncrementCallsTo##hook_type)); \ } // We do one for each hook typedef in malloc_hook.h MAKE_HOOK_CALLBACK(NewHook); MAKE_HOOK_CALLBACK(DeleteHook); MAKE_HOOK_CALLBACK(MmapHook); MAKE_HOOK_CALLBACK(MremapHook); MAKE_HOOK_CALLBACK(MunmapHook); MAKE_HOOK_CALLBACK(SbrkHook); static void TestAlignmentForSize(int size) { fprintf(LOGSTREAM, "Testing alignment of malloc(%d)\n", size); static const int kNum = 100; void* ptrs[kNum]; for (int i = 0; i < kNum; i++) { ptrs[i] = malloc(size); uintptr_t p = reinterpret_cast(ptrs[i]); CHECK((p % sizeof(void*)) == 0); CHECK((p % sizeof(double)) == 0); // Must have 16-byte (or 8-byte in case of -DTCMALLOC_ALIGN_8BYTES) // alignment for large enough objects if (size >= kMinAlign) { CHECK((p % kMinAlign) == 0); } } for (int i = 0; i < kNum; i++) { free(ptrs[i]); } } static void TestMallocAlignment() { for (int lg = 0; lg < 16; lg++) { TestAlignmentForSize((1<(arg); if (state->ptr >= r->address && state->ptr < r->address + r->length) { if (state->expected_type == base::MallocRange::FREE) { // We are expecting r->type == FREE, but ReleaseMemory // may have already moved us to UNMAPPED state instead (this happens in // approximately 0.1% of executions). Accept either state. CHECK(r->type == base::MallocRange::FREE || r->type == base::MallocRange::UNMAPPED); } else { CHECK_EQ(r->type, state->expected_type); } CHECK_GE(r->length, state->min_size); state->matched = true; } } // Check that at least one of the callbacks from Ranges() contains // the specified address with the specified type, and has size // >= min_size. static void CheckRangeCallback(void* ptr, base::MallocRange::Type type, size_t min_size) { RangeCallbackState state; state.ptr = reinterpret_cast(ptr); state.expected_type = type; state.min_size = min_size; state.matched = false; MallocExtension::instance()->Ranges(&state, RangeCallback); CHECK(state.matched); } } static bool HaveSystemRelease = TCMalloc_SystemRelease(TCMalloc_SystemAlloc(kPageSize, NULL, 0), kPageSize); static void TestRanges() { static const int MB = 1048576; void* a = malloc(MB); void* b = malloc(MB); base::MallocRange::Type releasedType = HaveSystemRelease ? base::MallocRange::UNMAPPED : base::MallocRange::FREE; CheckRangeCallback(a, base::MallocRange::INUSE, MB); CheckRangeCallback(b, base::MallocRange::INUSE, MB); free(a); CheckRangeCallback(a, base::MallocRange::FREE, MB); CheckRangeCallback(b, base::MallocRange::INUSE, MB); MallocExtension::instance()->ReleaseFreeMemory(); CheckRangeCallback(a, releasedType, MB); CheckRangeCallback(b, base::MallocRange::INUSE, MB); free(b); CheckRangeCallback(a, releasedType, MB); CheckRangeCallback(b, base::MallocRange::FREE, MB); } #ifndef DEBUGALLOCATION static size_t GetUnmappedBytes() { size_t bytes; CHECK(MallocExtension::instance()->GetNumericProperty( "tcmalloc.pageheap_unmapped_bytes", &bytes)); return bytes; } #endif class AggressiveDecommitChanger { size_t old_value_; public: AggressiveDecommitChanger(size_t new_value) { MallocExtension *inst = MallocExtension::instance(); bool rv = inst->GetNumericProperty("tcmalloc.aggressive_memory_decommit", &old_value_); CHECK_CONDITION(rv); rv = inst->SetNumericProperty("tcmalloc.aggressive_memory_decommit", new_value); CHECK_CONDITION(rv); } ~AggressiveDecommitChanger() { MallocExtension *inst = MallocExtension::instance(); bool rv = inst->SetNumericProperty("tcmalloc.aggressive_memory_decommit", old_value_); CHECK_CONDITION(rv); } }; static void TestReleaseToSystem() { // Debug allocation mode adds overhead to each allocation which // messes up all the equality tests here. I just disable the // teset in this mode. TODO(csilvers): get it to work for debugalloc? #ifndef DEBUGALLOCATION if(!HaveSystemRelease) return; const double old_tcmalloc_release_rate = FLAGS_tcmalloc_release_rate; FLAGS_tcmalloc_release_rate = 0; AggressiveDecommitChanger disabler(0); static const int MB = 1048576; void* a = malloc(MB); void* b = malloc(MB); MallocExtension::instance()->ReleaseFreeMemory(); size_t starting_bytes = GetUnmappedBytes(); // Calling ReleaseFreeMemory() a second time shouldn't do anything. MallocExtension::instance()->ReleaseFreeMemory(); EXPECT_EQ(starting_bytes, GetUnmappedBytes()); // ReleaseToSystem shouldn't do anything either. MallocExtension::instance()->ReleaseToSystem(MB); EXPECT_EQ(starting_bytes, GetUnmappedBytes()); free(a); // The span to release should be 1MB. MallocExtension::instance()->ReleaseToSystem(MB/2); EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes()); // Should do nothing since the previous call released too much. MallocExtension::instance()->ReleaseToSystem(MB/4); EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes()); free(b); // Use up the extra MB/4 bytes from 'a' and also release 'b'. MallocExtension::instance()->ReleaseToSystem(MB/2); EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes()); // Should do nothing since the previous call released too much. MallocExtension::instance()->ReleaseToSystem(MB/2); EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes()); // Nothing else to release. MallocExtension::instance()->ReleaseFreeMemory(); EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes()); a = malloc(MB); free(a); EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes()); // Releasing less than a page should still trigger a release. MallocExtension::instance()->ReleaseToSystem(1); EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes()); FLAGS_tcmalloc_release_rate = old_tcmalloc_release_rate; #endif // #ifndef DEBUGALLOCATION } static void TestAggressiveDecommit() { // Debug allocation mode adds overhead to each allocation which // messes up all the equality tests here. I just disable the // teset in this mode. #ifndef DEBUGALLOCATION if(!HaveSystemRelease) return; fprintf(LOGSTREAM, "Testing aggressive de-commit\n"); AggressiveDecommitChanger enabler(1); static const int MB = 1048576; void* a = malloc(MB); void* b = malloc(MB); size_t starting_bytes = GetUnmappedBytes(); // ReleaseToSystem shouldn't do anything either. MallocExtension::instance()->ReleaseToSystem(MB); EXPECT_EQ(starting_bytes, GetUnmappedBytes()); free(a); // The span to release should be 1MB. EXPECT_EQ(starting_bytes + MB, GetUnmappedBytes()); free(b); EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes()); // Nothing else to release. MallocExtension::instance()->ReleaseFreeMemory(); EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes()); a = malloc(MB); free(a); EXPECT_EQ(starting_bytes + 2*MB, GetUnmappedBytes()); fprintf(LOGSTREAM, "Done testing aggressive de-commit\n"); #endif // #ifndef DEBUGALLOCATION } // On MSVC10, in release mode, the optimizer convinces itself // g_no_memory is never changed (I guess it doesn't realize OnNoMemory // might be called). Work around this by setting the var volatile. volatile bool g_no_memory = false; std::new_handler g_old_handler = NULL; static void OnNoMemory() { g_no_memory = true; std::set_new_handler(g_old_handler); } static void TestSetNewMode() { int old_mode = tc_set_new_mode(1); g_old_handler = std::set_new_handler(&OnNoMemory); g_no_memory = false; void* ret = malloc(kTooBig); EXPECT_EQ(NULL, ret); EXPECT_TRUE(g_no_memory); g_old_handler = std::set_new_handler(&OnNoMemory); g_no_memory = false; ret = calloc(1, kTooBig); EXPECT_EQ(NULL, ret); EXPECT_TRUE(g_no_memory); g_old_handler = std::set_new_handler(&OnNoMemory); g_no_memory = false; ret = realloc(NULL, kTooBig); EXPECT_EQ(NULL, ret); EXPECT_TRUE(g_no_memory); if (kOSSupportsMemalign) { // Not really important, but must be small enough such that // kAlignment + kTooBig does not overflow. const int kAlignment = 1 << 5; g_old_handler = std::set_new_handler(&OnNoMemory); g_no_memory = false; ret = Memalign(kAlignment, kTooBig); EXPECT_EQ(NULL, ret); EXPECT_TRUE(g_no_memory); g_old_handler = std::set_new_handler(&OnNoMemory); g_no_memory = false; EXPECT_EQ(ENOMEM, PosixMemalign(&ret, kAlignment, kTooBig)); EXPECT_EQ(NULL, ret); EXPECT_TRUE(g_no_memory); } tc_set_new_mode(old_mode); } static int RunAllTests(int argc, char** argv) { // Optional argv[1] is the seed AllocatorState rnd(argc > 1 ? atoi(argv[1]) : 100); SetTestResourceLimit(); // TODO(odo): This test has been disabled because it is only by luck that it // does not result in fragmentation. When tcmalloc makes an allocation which // spans previously unused leaves of the pagemap it will allocate and fill in // the leaves to cover the new allocation. The leaves happen to be 256MiB in // the 64-bit build, and with the sbrk allocator these allocations just // happen to fit in one leaf by luck. With other allocators (mmap, // memfs_malloc when used with small pages) the allocations generally span // two leaves and this results in a very bad fragmentation pattern with this // code. The same failure can be forced with the sbrk allocator just by // allocating something on the order of 128MiB prior to starting this test so // that the test allocations straddle a 256MiB boundary. // TODO(csilvers): port MemoryUsage() over so the test can use that #if 0 # include // for getpid() // Allocate and deallocate blocks of increasing sizes to check if the alloc // metadata fragments the memory. (Do not put other allocations/deallocations // before this test, it may break). { size_t memory_usage = MemoryUsage(getpid()); fprintf(LOGSTREAM, "Testing fragmentation\n"); for ( int i = 200; i < 240; ++i ) { int size = i << 20; void *test1 = rnd.alloc(size); CHECK(test1); for ( int j = 0; j < size; j += (1 << 12) ) { static_cast(test1)[j] = 1; } free(test1); } // There may still be a bit of fragmentation at the beginning, until we // reach kPageMapBigAllocationThreshold bytes so we check for // 200 + 240 + margin. CHECK_LT(MemoryUsage(getpid()), memory_usage + (450 << 20) ); } #endif // Check that empty allocation works fprintf(LOGSTREAM, "Testing empty allocation\n"); { void* p1 = rnd.alloc(0); CHECK(p1 != NULL); void* p2 = rnd.alloc(0); CHECK(p2 != NULL); CHECK(p1 != p2); free(p1); free(p2); } // This code stresses some of the memory allocation via STL. // It may call operator delete(void*, nothrow_t). fprintf(LOGSTREAM, "Testing STL use\n"); { std::vector v; v.push_back(1); v.push_back(2); v.push_back(3); v.push_back(0); std::stable_sort(v.begin(), v.end()); } // Test each of the memory-allocation functions once, just as a sanity-check fprintf(LOGSTREAM, "Sanity-testing all the memory allocation functions\n"); { // We use new-hook and delete-hook to verify we actually called the // tcmalloc version of these routines, and not the libc version. SetNewHook(); // defined as part of MAKE_HOOK_CALLBACK, above SetDeleteHook(); // ditto void* p1 = malloc(10); CHECK(p1 != NULL); // force use of this variable VerifyNewHookWasCalled(); // Also test the non-standard tc_malloc_size size_t actual_p1_size = tc_malloc_size(p1); CHECK_GE(actual_p1_size, 10); CHECK_LT(actual_p1_size, 100000); // a reasonable upper-bound, I think free(p1); VerifyDeleteHookWasCalled(); p1 = tc_malloc_skip_new_handler(10); CHECK(p1 != NULL); VerifyNewHookWasCalled(); free(p1); VerifyDeleteHookWasCalled(); p1 = calloc(10, 2); CHECK(p1 != NULL); VerifyNewHookWasCalled(); // We make sure we realloc to a big size, since some systems (OS // X) will notice if the realloced size continues to fit into the // malloc-block and make this a noop if so. p1 = realloc(p1, 30000); CHECK(p1 != NULL); VerifyNewHookWasCalled(); VerifyDeleteHookWasCalled(); cfree(p1); // synonym for free VerifyDeleteHookWasCalled(); if (kOSSupportsMemalign) { CHECK_EQ(PosixMemalign(&p1, sizeof(p1), 40), 0); CHECK(p1 != NULL); VerifyNewHookWasCalled(); free(p1); VerifyDeleteHookWasCalled(); p1 = Memalign(sizeof(p1) * 2, 50); CHECK(p1 != NULL); VerifyNewHookWasCalled(); free(p1); VerifyDeleteHookWasCalled(); } // Windows has _aligned_malloc. Let's test that that's captured too. #if (defined(_MSC_VER) || defined(__MINGW32__)) && !defined(PERFTOOLS_NO_ALIGNED_MALLOC) p1 = _aligned_malloc(sizeof(p1) * 2, 64); CHECK(p1 != NULL); VerifyNewHookWasCalled(); _aligned_free(p1); VerifyDeleteHookWasCalled(); #endif p1 = valloc(60); CHECK(p1 != NULL); VerifyNewHookWasCalled(); free(p1); VerifyDeleteHookWasCalled(); p1 = pvalloc(70); CHECK(p1 != NULL); VerifyNewHookWasCalled(); free(p1); VerifyDeleteHookWasCalled(); char* p2 = new char; CHECK(p2 != NULL); VerifyNewHookWasCalled(); delete p2; VerifyDeleteHookWasCalled(); p2 = new char[100]; CHECK(p2 != NULL); VerifyNewHookWasCalled(); delete[] p2; VerifyDeleteHookWasCalled(); p2 = new(std::nothrow) char; CHECK(p2 != NULL); VerifyNewHookWasCalled(); delete p2; VerifyDeleteHookWasCalled(); p2 = new(std::nothrow) char[100]; CHECK(p2 != NULL); VerifyNewHookWasCalled(); delete[] p2; VerifyDeleteHookWasCalled(); // Another way of calling operator new p2 = static_cast(::operator new(100)); CHECK(p2 != NULL); VerifyNewHookWasCalled(); ::operator delete(p2); VerifyDeleteHookWasCalled(); // Try to call nothrow's delete too. Compilers use this. p2 = static_cast(::operator new(100, std::nothrow)); CHECK(p2 != NULL); VerifyNewHookWasCalled(); ::operator delete(p2, std::nothrow); VerifyDeleteHookWasCalled(); // Try strdup(), which the system allocates but we must free. If // all goes well, libc will use our malloc! p2 = strdup("test"); CHECK(p2 != NULL); VerifyNewHookWasCalled(); free(p2); VerifyDeleteHookWasCalled(); // Test mmap too: both anonymous mmap and mmap of a file // Note that for right now we only override mmap on linux // systems, so those are the only ones for which we check. SetMmapHook(); SetMremapHook(); SetMunmapHook(); #if defined(HAVE_MMAP) && defined(__linux) && \ (defined(__i386__) || defined(__x86_64__)) int size = 8192*2; p1 = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); CHECK(p1 != NULL); VerifyMmapHookWasCalled(); p1 = mremap(p1, size, size/2, 0); CHECK(p1 != NULL); VerifyMremapHookWasCalled(); size /= 2; munmap(p1, size); VerifyMunmapHookWasCalled(); int fd = open("/dev/zero", O_RDONLY); CHECK_GE(fd, 0); // make sure the open succeeded p1 = mmap(NULL, 8192, PROT_READ, MAP_SHARED, fd, 0); CHECK(p1 != NULL); VerifyMmapHookWasCalled(); munmap(p1, 8192); VerifyMunmapHookWasCalled(); close(fd); #else // this is just to quiet the compiler: make sure all fns are called IncrementCallsToMmapHook(); IncrementCallsToMunmapHook(); IncrementCallsToMremapHook(); VerifyMmapHookWasCalled(); VerifyMremapHookWasCalled(); VerifyMunmapHookWasCalled(); #endif // Test sbrk SetSbrkHook(); #if defined(HAVE_SBRK) && defined(__linux) && \ (defined(__i386__) || defined(__x86_64__)) p1 = sbrk(8192); CHECK(p1 != NULL); VerifySbrkHookWasCalled(); p1 = sbrk(-8192); CHECK(p1 != NULL); VerifySbrkHookWasCalled(); // However, sbrk hook should *not* be called with sbrk(0) p1 = sbrk(0); CHECK(p1 != NULL); CHECK_EQ(g_SbrkHook_calls, 0); #else // this is just to quiet the compiler: make sure all fns are called IncrementCallsToSbrkHook(); VerifySbrkHookWasCalled(); #endif // Reset the hooks to what they used to be. These are all // defined as part of MAKE_HOOK_CALLBACK, above. ResetNewHook(); ResetDeleteHook(); ResetMmapHook(); ResetMremapHook(); ResetMunmapHook(); ResetSbrkHook(); } // Check that "lots" of memory can be allocated fprintf(LOGSTREAM, "Testing large allocation\n"); { const int mb_to_allocate = 100; void* p = rnd.alloc(mb_to_allocate << 20); CHECK(p != NULL); // could not allocate free(p); } TestMallocAlignment(); // Check calloc() with various arguments fprintf(LOGSTREAM, "Testing calloc\n"); TestCalloc(0, 0, true); TestCalloc(0, 1, true); TestCalloc(1, 1, true); TestCalloc(1<<10, 0, true); TestCalloc(1<<20, 0, true); TestCalloc(0, 1<<10, true); TestCalloc(0, 1<<20, true); TestCalloc(1<<20, 2, true); TestCalloc(2, 1<<20, true); TestCalloc(1000, 1000, true); TestCalloc(kMaxSize, 2, false); TestCalloc(2, kMaxSize, false); TestCalloc(kMaxSize, kMaxSize, false); TestCalloc(kMaxSignedSize, 3, false); TestCalloc(3, kMaxSignedSize, false); TestCalloc(kMaxSignedSize, kMaxSignedSize, false); // Test that realloc doesn't always reallocate and copy memory. fprintf(LOGSTREAM, "Testing realloc\n"); TestRealloc(); fprintf(LOGSTREAM, "Testing operator new(nothrow).\n"); TestNothrowNew(&::operator new); fprintf(LOGSTREAM, "Testing operator new[](nothrow).\n"); TestNothrowNew(&::operator new[]); fprintf(LOGSTREAM, "Testing operator new.\n"); TestNew(&::operator new); fprintf(LOGSTREAM, "Testing operator new[].\n"); TestNew(&::operator new[]); // Create threads fprintf(LOGSTREAM, "Testing threaded allocation/deallocation (%d threads)\n", FLAGS_numthreads); threads = new TesterThread*[FLAGS_numthreads]; for (int i = 0; i < FLAGS_numthreads; ++i) { threads[i] = new TesterThread(i); } // This runs all the tests at the same time, with a 1M stack size each RunManyThreadsWithId(RunThread, FLAGS_numthreads, 1<<20); for (int i = 0; i < FLAGS_numthreads; ++i) delete threads[i]; // Cleanup // Do the memory intensive tests after threads are done, since exhausting // the available address space can make pthread_create to fail. // Check that huge allocations fail with NULL instead of crashing fprintf(LOGSTREAM, "Testing huge allocations\n"); TestHugeAllocations(&rnd); // Check that large allocations fail with NULL instead of crashing #ifndef DEBUGALLOCATION // debug allocation takes forever for huge allocs fprintf(LOGSTREAM, "Testing out of memory\n"); for (int s = 0; ; s += (10<<20)) { void* large_object = rnd.alloc(s); if (large_object == NULL) break; free(large_object); } #endif TestHugeThreadCache(); TestRanges(); TestReleaseToSystem(); TestAggressiveDecommit(); TestSetNewMode(); return 0; } } using testing::RunAllTests; int main(int argc, char** argv) { #ifdef DEBUGALLOCATION // debug allocation takes forever for huge allocs FLAGS_max_free_queue_size = 0; // return freed blocks to tcmalloc immediately #endif RunAllTests(argc, argv); // Test tc_version() fprintf(LOGSTREAM, "Testing tc_version()\n"); int major; int minor; const char* patch; char mmp[64]; const char* human_version = tc_version(&major, &minor, &patch); snprintf(mmp, sizeof(mmp), "%d.%d%s", major, minor, patch); CHECK(!strcmp(PACKAGE_STRING, human_version)); CHECK(!strcmp(PACKAGE_VERSION, mmp)); fprintf(LOGSTREAM, "PASS\n"); } gperftools-2.4/src/tests/large_heap_fragmentation_unittest.cc0000644000000000000000000000464712440704174021654 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // This is a unit test for exercising fragmentation of large (over 1 // meg) page spans. It makes sure that allocations/releases of // increasing memory chunks do not blowup memory // usage. See also https://code.google.com/p/gperftools/issues/detail?id=368 #include #include #include #include "base/logging.h" #include "common.h" #include int main (int argc, char** argv) { for (int pass = 1; pass <= 3; pass++) { size_t size = 100*1024*1024; while (size < 500*1024*1024) { void *ptr = malloc(size); free(ptr); size += 20000; size_t heap_size = static_cast(-1); MallocExtension::instance()->GetNumericProperty("generic.heap_size", &heap_size); CHECK_LT(heap_size, 1*1024*1024*1024); } } printf("PASS\n"); return 0; } gperftools-2.4/src/tests/tcmalloc_large_unittest.cc0000644000000000000000000001121112440704174017600 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Michael Chastain // // This is a unit test for large allocations in malloc and friends. // "Large" means "so large that they overflow the address space". // For 32 bits, this means allocations near 2^32 bytes and 2^31 bytes. // For 64 bits, this means allocations near 2^64 bytes and 2^63 bytes. #include // for size_t, NULL #include // for malloc, free, realloc #include #include // for set, etc #include "base/logging.h" // for operator<<, CHECK, etc using std::set; // Alloc a size that should always fail. void TryAllocExpectFail(size_t size) { void* p1 = malloc(size); CHECK(p1 == NULL); void* p2 = malloc(1); CHECK(p2 != NULL); void* p3 = realloc(p2, size); CHECK(p3 == NULL); free(p2); } // Alloc a size that might work and might fail. // If it does work, touch some pages. void TryAllocMightFail(size_t size) { unsigned char* p = static_cast(malloc(size)); if ( p != NULL ) { unsigned char volatile* vp = p; // prevent optimizations static const size_t kPoints = 1024; for ( size_t i = 0; i < kPoints; ++i ) { vp[i * (size / kPoints)] = static_cast(i); } for ( size_t i = 0; i < kPoints; ++i ) { CHECK(vp[i * (size / kPoints)] == static_cast(i)); } vp[size-1] = 'M'; CHECK(vp[size-1] == 'M'); } free(p); } int main (int argc, char** argv) { // Allocate some 0-byte objects. They better be unique. // 0 bytes is not large but it exercises some paths related to // large-allocation code. { static const int kZeroTimes = 1024; printf("Test malloc(0) x %d\n", kZeroTimes); set p_set; for ( int i = 0; i < kZeroTimes; ++i ) { char* p = new char; CHECK(p != NULL); CHECK(p_set.find(p) == p_set.end()); p_set.insert(p_set.end(), p); } // Just leak the memory. } // Grab some memory so that some later allocations are guaranteed to fail. printf("Test small malloc\n"); void* p_small = malloc(4*1048576); CHECK(p_small != NULL); // Test sizes up near the maximum size_t. // These allocations test the wrap-around code. printf("Test malloc(0 - N)\n"); const size_t zero = 0; static const size_t kMinusNTimes = 16384; for ( size_t i = 1; i < kMinusNTimes; ++i ) { TryAllocExpectFail(zero - i); } // Test sizes a bit smaller. // The small malloc above guarantees that all these return NULL. printf("Test malloc(0 - 1048576 - N)\n"); static const size_t kMinusMBMinusNTimes = 16384; for ( size_t i = 0; i < kMinusMBMinusNTimes; ++i) { TryAllocExpectFail(zero - 1048576 - i); } // Test sizes at half of size_t. // These might or might not fail to allocate. printf("Test malloc(max/2 +- N)\n"); static const size_t kHalfPlusMinusTimes = 64; const size_t half = (zero - 2) / 2 + 1; for ( size_t i = 0; i < kHalfPlusMinusTimes; ++i) { TryAllocMightFail(half - i); TryAllocMightFail(half + i); } printf("PASS\n"); return 0; } gperftools-2.4/src/tests/tcmalloc_unittest.sh0000755000000000000000000000515512450132572016466 00000000000000#!/bin/sh # Copyright (c) 2013, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Author: Adhemerval Zanella # # Runs the tcmalloc_unittest with various environment variables. # This is necessary because tuning some environment variables # (TCMALLOC_TRANSFER_NUM_OBJ for instance) should not change program # behavior, just performance. BINDIR="${BINDIR:-.}" TCMALLOC_UNITTEST="${1:-$BINDIR/tcmalloc_unittest}" TMPDIR=/tmp/tcmalloc_unittest rm -rf $TMPDIR || exit 2 mkdir $TMPDIR || exit 3 run_unittest() { if $TCMALLOC_UNITTEST > $TMPDIR/output 2>&1; then echo "OK" else echo "FAILED" echo "Output from the failed run:" echo "----" cat $TMPDIR/output echo "----" exit 4 fi } # $1: value of tcmalloc_unittest env. var. run_check_transfer_num_obj() { [ -n "$1" ] && export TCMALLOC_TRANSFER_NUM_OBJ="$1" echo -n "Testing $TCMALLOC_UNITTEST with TCMALLOC_TRANSFER_NUM_OBJ=$1 ... " run_unittest } run_check_transfer_num_obj "" run_check_transfer_num_obj "40" run_check_transfer_num_obj "4096" echo -n "Testing $TCMALLOC_UNITTEST with TCMALLOC_AGGRESSIVE_DECOMMIT=f ... " TCMALLOC_AGGRESSIVE_DECOMMIT=f run_unittest echo "PASS" gperftools-2.4/src/tests/thread_dealloc_unittest.cc0000644000000000000000000000570712440704174017577 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2004, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Check that we do not leak memory when cycling through lots of threads. #include "config_for_unittests.h" #include #ifdef HAVE_UNISTD_H #include // for sleep() #endif #include "base/logging.h" #include #include "tests/testutil.h" // for RunThread() // Size/number of objects to allocate per thread (1 MB per thread) static const int kObjectSize = 1024; static const int kNumObjects = 1024; // Number of threads to create and destroy static const int kNumThreads = 1000; // Allocate lots of stuff static void AllocStuff() { void** objects = new void*[kNumObjects]; for (int i = 0; i < kNumObjects; i++) { objects[i] = malloc(kObjectSize); } for (int i = 0; i < kNumObjects; i++) { free(objects[i]); } delete[] objects; } int main(int argc, char** argv) { static const int kDisplaySize = 1048576; char* display = new char[kDisplaySize]; for (int i = 0; i < kNumThreads; i++) { RunThread(&AllocStuff); if (((i+1) % 200) == 0) { fprintf(stderr, "Iteration: %d of %d\n", (i+1), kNumThreads); MallocExtension::instance()->GetStats(display, kDisplaySize); fprintf(stderr, "%s\n", display); } } delete[] display; printf("PASS\n"); #ifdef HAVE_UNISTD_H sleep(1); // Prevent exit race problem with glibc #endif return 0; } gperftools-2.4/src/third_party/0000755000000000000000000000000012454304760013637 500000000000000gperftools-2.4/src/third_party/valgrind.h0000644000000000000000000070560212372001603015535 00000000000000/* -*- c -*- ---------------------------------------------------------------- Notice that the following BSD-style license applies to this one file (valgrind.h) only. The rest of Valgrind is licensed under the terms of the GNU General Public License, version 2, unless otherwise indicated. See the COPYING file in the source distribution for details. ---------------------------------------------------------------- This file is part of Valgrind, a dynamic binary instrumentation framework. Copyright (C) 2000-2008 Julian Seward. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 3. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 4. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---------------------------------------------------------------- Notice that the above BSD-style license applies to this one file (valgrind.h) only. The entire rest of Valgrind is licensed under the terms of the GNU General Public License, version 2. See the COPYING file in the source distribution for details. ---------------------------------------------------------------- */ /* This file is for inclusion into client (your!) code. You can use these macros to manipulate and query Valgrind's execution inside your own programs. The resulting executables will still run without Valgrind, just a little bit more slowly than they otherwise would, but otherwise unchanged. When not running on valgrind, each client request consumes very few (eg. 7) instructions, so the resulting performance loss is negligible unless you plan to execute client requests millions of times per second. Nevertheless, if that is still a problem, you can compile with the NVALGRIND symbol defined (gcc -DNVALGRIND) so that client requests are not even compiled in. */ #ifndef __VALGRIND_H #define __VALGRIND_H #include /* Nb: this file might be included in a file compiled with -ansi. So we can't use C++ style "//" comments nor the "asm" keyword (instead use "__asm__"). */ /* Derive some tags indicating what the target platform is. Note that in this file we're using the compiler's CPP symbols for identifying architectures, which are different to the ones we use within the rest of Valgrind. Note, __powerpc__ is active for both 32 and 64-bit PPC, whereas __powerpc64__ is only active for the latter (on Linux, that is). */ #undef PLAT_x86_linux #undef PLAT_amd64_linux #undef PLAT_ppc32_linux #undef PLAT_ppc64_linux #undef PLAT_ppc32_aix5 #undef PLAT_ppc64_aix5 #if !defined(_AIX) && defined(__i386__) # define PLAT_x86_linux 1 #elif !defined(_AIX) && defined(__x86_64__) # define PLAT_amd64_linux 1 #elif !defined(_AIX) && defined(__powerpc__) && !defined(__powerpc64__) # define PLAT_ppc32_linux 1 #elif !defined(_AIX) && defined(__powerpc__) && defined(__powerpc64__) # define PLAT_ppc64_linux 1 #elif defined(_AIX) && defined(__64BIT__) # define PLAT_ppc64_aix5 1 #elif defined(_AIX) && !defined(__64BIT__) # define PLAT_ppc32_aix5 1 #endif /* If we're not compiling for our target platform, don't generate any inline asms. */ #if !defined(PLAT_x86_linux) && !defined(PLAT_amd64_linux) \ && !defined(PLAT_ppc32_linux) && !defined(PLAT_ppc64_linux) \ && !defined(PLAT_ppc32_aix5) && !defined(PLAT_ppc64_aix5) # if !defined(NVALGRIND) # define NVALGRIND 1 # endif #endif /* ------------------------------------------------------------------ */ /* ARCHITECTURE SPECIFICS for SPECIAL INSTRUCTIONS. There is nothing */ /* in here of use to end-users -- skip to the next section. */ /* ------------------------------------------------------------------ */ #if defined(NVALGRIND) /* Define NVALGRIND to completely remove the Valgrind magic sequence from the compiled code (analogous to NDEBUG's effects on assert()) */ #define VALGRIND_DO_CLIENT_REQUEST( \ _zzq_rlval, _zzq_default, _zzq_request, \ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ { \ (_zzq_rlval) = (_zzq_default); \ } #else /* ! NVALGRIND */ /* The following defines the magic code sequences which the JITter spots and handles magically. Don't look too closely at them as they will rot your brain. The assembly code sequences for all architectures is in this one file. This is because this file must be stand-alone, and we don't want to have multiple files. For VALGRIND_DO_CLIENT_REQUEST, we must ensure that the default value gets put in the return slot, so that everything works when this is executed not under Valgrind. Args are passed in a memory block, and so there's no intrinsic limit to the number that could be passed, but it's currently five. The macro args are: _zzq_rlval result lvalue _zzq_default default value (result returned when running on real CPU) _zzq_request request code _zzq_arg1..5 request params The other two macros are used to support function wrapping, and are a lot simpler. VALGRIND_GET_NR_CONTEXT returns the value of the guest's NRADDR pseudo-register and whatever other information is needed to safely run the call original from the wrapper: on ppc64-linux, the R2 value at the divert point is also needed. This information is abstracted into a user-visible type, OrigFn. VALGRIND_CALL_NOREDIR_* behaves the same as the following on the guest, but guarantees that the branch instruction will not be redirected: x86: call *%eax, amd64: call *%rax, ppc32/ppc64: branch-and-link-to-r11. VALGRIND_CALL_NOREDIR is just text, not a complete inline asm, since it needs to be combined with more magic inline asm stuff to be useful. */ /* ------------------------- x86-linux ------------------------- */ #if defined(PLAT_x86_linux) typedef struct { unsigned int nraddr; /* where's the code? */ } OrigFn; #define __SPECIAL_INSTRUCTION_PREAMBLE \ "roll $3, %%edi ; roll $13, %%edi\n\t" \ "roll $29, %%edi ; roll $19, %%edi\n\t" #define VALGRIND_DO_CLIENT_REQUEST( \ _zzq_rlval, _zzq_default, _zzq_request, \ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ { volatile unsigned int _zzq_args[6]; \ volatile unsigned int _zzq_result; \ _zzq_args[0] = (unsigned int)(_zzq_request); \ _zzq_args[1] = (unsigned int)(_zzq_arg1); \ _zzq_args[2] = (unsigned int)(_zzq_arg2); \ _zzq_args[3] = (unsigned int)(_zzq_arg3); \ _zzq_args[4] = (unsigned int)(_zzq_arg4); \ _zzq_args[5] = (unsigned int)(_zzq_arg5); \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %EDX = client_request ( %EAX ) */ \ "xchgl %%ebx,%%ebx" \ : "=d" (_zzq_result) \ : "a" (&_zzq_args[0]), "0" (_zzq_default) \ : "cc", "memory" \ ); \ _zzq_rlval = _zzq_result; \ } #define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ volatile unsigned int __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %EAX = guest_NRADDR */ \ "xchgl %%ecx,%%ecx" \ : "=a" (__addr) \ : \ : "cc", "memory" \ ); \ _zzq_orig->nraddr = __addr; \ } #define VALGRIND_CALL_NOREDIR_EAX \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* call-noredir *%EAX */ \ "xchgl %%edx,%%edx\n\t" #endif /* PLAT_x86_linux */ /* ------------------------ amd64-linux ------------------------ */ #if defined(PLAT_amd64_linux) typedef struct { unsigned long long int nraddr; /* where's the code? */ } OrigFn; #define __SPECIAL_INSTRUCTION_PREAMBLE \ "rolq $3, %%rdi ; rolq $13, %%rdi\n\t" \ "rolq $61, %%rdi ; rolq $51, %%rdi\n\t" #define VALGRIND_DO_CLIENT_REQUEST( \ _zzq_rlval, _zzq_default, _zzq_request, \ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ { volatile unsigned long long int _zzq_args[6]; \ volatile unsigned long long int _zzq_result; \ _zzq_args[0] = (unsigned long long int)(_zzq_request); \ _zzq_args[1] = (unsigned long long int)(_zzq_arg1); \ _zzq_args[2] = (unsigned long long int)(_zzq_arg2); \ _zzq_args[3] = (unsigned long long int)(_zzq_arg3); \ _zzq_args[4] = (unsigned long long int)(_zzq_arg4); \ _zzq_args[5] = (unsigned long long int)(_zzq_arg5); \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %RDX = client_request ( %RAX ) */ \ "xchgq %%rbx,%%rbx" \ : "=d" (_zzq_result) \ : "a" (&_zzq_args[0]), "0" (_zzq_default) \ : "cc", "memory" \ ); \ _zzq_rlval = _zzq_result; \ } #define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ volatile unsigned long long int __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %RAX = guest_NRADDR */ \ "xchgq %%rcx,%%rcx" \ : "=a" (__addr) \ : \ : "cc", "memory" \ ); \ _zzq_orig->nraddr = __addr; \ } #define VALGRIND_CALL_NOREDIR_RAX \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* call-noredir *%RAX */ \ "xchgq %%rdx,%%rdx\n\t" #endif /* PLAT_amd64_linux */ /* ------------------------ ppc32-linux ------------------------ */ #if defined(PLAT_ppc32_linux) typedef struct { unsigned int nraddr; /* where's the code? */ } OrigFn; #define __SPECIAL_INSTRUCTION_PREAMBLE \ "rlwinm 0,0,3,0,0 ; rlwinm 0,0,13,0,0\n\t" \ "rlwinm 0,0,29,0,0 ; rlwinm 0,0,19,0,0\n\t" #define VALGRIND_DO_CLIENT_REQUEST( \ _zzq_rlval, _zzq_default, _zzq_request, \ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ \ { unsigned int _zzq_args[6]; \ unsigned int _zzq_result; \ unsigned int* _zzq_ptr; \ _zzq_args[0] = (unsigned int)(_zzq_request); \ _zzq_args[1] = (unsigned int)(_zzq_arg1); \ _zzq_args[2] = (unsigned int)(_zzq_arg2); \ _zzq_args[3] = (unsigned int)(_zzq_arg3); \ _zzq_args[4] = (unsigned int)(_zzq_arg4); \ _zzq_args[5] = (unsigned int)(_zzq_arg5); \ _zzq_ptr = _zzq_args; \ __asm__ volatile("mr 3,%1\n\t" /*default*/ \ "mr 4,%2\n\t" /*ptr*/ \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = client_request ( %R4 ) */ \ "or 1,1,1\n\t" \ "mr %0,3" /*result*/ \ : "=b" (_zzq_result) \ : "b" (_zzq_default), "b" (_zzq_ptr) \ : "cc", "memory", "r3", "r4"); \ _zzq_rlval = _zzq_result; \ } #define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ unsigned int __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = guest_NRADDR */ \ "or 2,2,2\n\t" \ "mr %0,3" \ : "=b" (__addr) \ : \ : "cc", "memory", "r3" \ ); \ _zzq_orig->nraddr = __addr; \ } #define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* branch-and-link-to-noredir *%R11 */ \ "or 3,3,3\n\t" #endif /* PLAT_ppc32_linux */ /* ------------------------ ppc64-linux ------------------------ */ #if defined(PLAT_ppc64_linux) typedef struct { unsigned long long int nraddr; /* where's the code? */ unsigned long long int r2; /* what tocptr do we need? */ } OrigFn; #define __SPECIAL_INSTRUCTION_PREAMBLE \ "rotldi 0,0,3 ; rotldi 0,0,13\n\t" \ "rotldi 0,0,61 ; rotldi 0,0,51\n\t" #define VALGRIND_DO_CLIENT_REQUEST( \ _zzq_rlval, _zzq_default, _zzq_request, \ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ \ { unsigned long long int _zzq_args[6]; \ register unsigned long long int _zzq_result __asm__("r3"); \ register unsigned long long int* _zzq_ptr __asm__("r4"); \ _zzq_args[0] = (unsigned long long int)(_zzq_request); \ _zzq_args[1] = (unsigned long long int)(_zzq_arg1); \ _zzq_args[2] = (unsigned long long int)(_zzq_arg2); \ _zzq_args[3] = (unsigned long long int)(_zzq_arg3); \ _zzq_args[4] = (unsigned long long int)(_zzq_arg4); \ _zzq_args[5] = (unsigned long long int)(_zzq_arg5); \ _zzq_ptr = _zzq_args; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = client_request ( %R4 ) */ \ "or 1,1,1" \ : "=r" (_zzq_result) \ : "0" (_zzq_default), "r" (_zzq_ptr) \ : "cc", "memory"); \ _zzq_rlval = _zzq_result; \ } #define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ register unsigned long long int __addr __asm__("r3"); \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = guest_NRADDR */ \ "or 2,2,2" \ : "=r" (__addr) \ : \ : "cc", "memory" \ ); \ _zzq_orig->nraddr = __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = guest_NRADDR_GPR2 */ \ "or 4,4,4" \ : "=r" (__addr) \ : \ : "cc", "memory" \ ); \ _zzq_orig->r2 = __addr; \ } #define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* branch-and-link-to-noredir *%R11 */ \ "or 3,3,3\n\t" #endif /* PLAT_ppc64_linux */ /* ------------------------ ppc32-aix5 ------------------------- */ #if defined(PLAT_ppc32_aix5) typedef struct { unsigned int nraddr; /* where's the code? */ unsigned int r2; /* what tocptr do we need? */ } OrigFn; #define __SPECIAL_INSTRUCTION_PREAMBLE \ "rlwinm 0,0,3,0,0 ; rlwinm 0,0,13,0,0\n\t" \ "rlwinm 0,0,29,0,0 ; rlwinm 0,0,19,0,0\n\t" #define VALGRIND_DO_CLIENT_REQUEST( \ _zzq_rlval, _zzq_default, _zzq_request, \ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ \ { unsigned int _zzq_args[7]; \ register unsigned int _zzq_result; \ register unsigned int* _zzq_ptr; \ _zzq_args[0] = (unsigned int)(_zzq_request); \ _zzq_args[1] = (unsigned int)(_zzq_arg1); \ _zzq_args[2] = (unsigned int)(_zzq_arg2); \ _zzq_args[3] = (unsigned int)(_zzq_arg3); \ _zzq_args[4] = (unsigned int)(_zzq_arg4); \ _zzq_args[5] = (unsigned int)(_zzq_arg5); \ _zzq_args[6] = (unsigned int)(_zzq_default); \ _zzq_ptr = _zzq_args; \ __asm__ volatile("mr 4,%1\n\t" \ "lwz 3, 24(4)\n\t" \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = client_request ( %R4 ) */ \ "or 1,1,1\n\t" \ "mr %0,3" \ : "=b" (_zzq_result) \ : "b" (_zzq_ptr) \ : "r3", "r4", "cc", "memory"); \ _zzq_rlval = _zzq_result; \ } #define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ register unsigned int __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = guest_NRADDR */ \ "or 2,2,2\n\t" \ "mr %0,3" \ : "=b" (__addr) \ : \ : "r3", "cc", "memory" \ ); \ _zzq_orig->nraddr = __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = guest_NRADDR_GPR2 */ \ "or 4,4,4\n\t" \ "mr %0,3" \ : "=b" (__addr) \ : \ : "r3", "cc", "memory" \ ); \ _zzq_orig->r2 = __addr; \ } #define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* branch-and-link-to-noredir *%R11 */ \ "or 3,3,3\n\t" #endif /* PLAT_ppc32_aix5 */ /* ------------------------ ppc64-aix5 ------------------------- */ #if defined(PLAT_ppc64_aix5) typedef struct { unsigned long long int nraddr; /* where's the code? */ unsigned long long int r2; /* what tocptr do we need? */ } OrigFn; #define __SPECIAL_INSTRUCTION_PREAMBLE \ "rotldi 0,0,3 ; rotldi 0,0,13\n\t" \ "rotldi 0,0,61 ; rotldi 0,0,51\n\t" #define VALGRIND_DO_CLIENT_REQUEST( \ _zzq_rlval, _zzq_default, _zzq_request, \ _zzq_arg1, _zzq_arg2, _zzq_arg3, _zzq_arg4, _zzq_arg5) \ \ { unsigned long long int _zzq_args[7]; \ register unsigned long long int _zzq_result; \ register unsigned long long int* _zzq_ptr; \ _zzq_args[0] = (unsigned int long long)(_zzq_request); \ _zzq_args[1] = (unsigned int long long)(_zzq_arg1); \ _zzq_args[2] = (unsigned int long long)(_zzq_arg2); \ _zzq_args[3] = (unsigned int long long)(_zzq_arg3); \ _zzq_args[4] = (unsigned int long long)(_zzq_arg4); \ _zzq_args[5] = (unsigned int long long)(_zzq_arg5); \ _zzq_args[6] = (unsigned int long long)(_zzq_default); \ _zzq_ptr = _zzq_args; \ __asm__ volatile("mr 4,%1\n\t" \ "ld 3, 48(4)\n\t" \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = client_request ( %R4 ) */ \ "or 1,1,1\n\t" \ "mr %0,3" \ : "=b" (_zzq_result) \ : "b" (_zzq_ptr) \ : "r3", "r4", "cc", "memory"); \ _zzq_rlval = _zzq_result; \ } #define VALGRIND_GET_NR_CONTEXT(_zzq_rlval) \ { volatile OrigFn* _zzq_orig = &(_zzq_rlval); \ register unsigned long long int __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = guest_NRADDR */ \ "or 2,2,2\n\t" \ "mr %0,3" \ : "=b" (__addr) \ : \ : "r3", "cc", "memory" \ ); \ _zzq_orig->nraddr = __addr; \ __asm__ volatile(__SPECIAL_INSTRUCTION_PREAMBLE \ /* %R3 = guest_NRADDR_GPR2 */ \ "or 4,4,4\n\t" \ "mr %0,3" \ : "=b" (__addr) \ : \ : "r3", "cc", "memory" \ ); \ _zzq_orig->r2 = __addr; \ } #define VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ __SPECIAL_INSTRUCTION_PREAMBLE \ /* branch-and-link-to-noredir *%R11 */ \ "or 3,3,3\n\t" #endif /* PLAT_ppc64_aix5 */ /* Insert assembly code for other platforms here... */ #endif /* NVALGRIND */ /* ------------------------------------------------------------------ */ /* PLATFORM SPECIFICS for FUNCTION WRAPPING. This is all very */ /* ugly. It's the least-worst tradeoff I can think of. */ /* ------------------------------------------------------------------ */ /* This section defines magic (a.k.a appalling-hack) macros for doing guaranteed-no-redirection macros, so as to get from function wrappers to the functions they are wrapping. The whole point is to construct standard call sequences, but to do the call itself with a special no-redirect call pseudo-instruction that the JIT understands and handles specially. This section is long and repetitious, and I can't see a way to make it shorter. The naming scheme is as follows: CALL_FN_{W,v}_{v,W,WW,WWW,WWWW,5W,6W,7W,etc} 'W' stands for "word" and 'v' for "void". Hence there are different macros for calling arity 0, 1, 2, 3, 4, etc, functions, and for each, the possibility of returning a word-typed result, or no result. */ /* Use these to write the name of your wrapper. NOTE: duplicates VG_WRAP_FUNCTION_Z{U,Z} in pub_tool_redir.h. */ #define I_WRAP_SONAME_FNNAME_ZU(soname,fnname) \ _vgwZU_##soname##_##fnname #define I_WRAP_SONAME_FNNAME_ZZ(soname,fnname) \ _vgwZZ_##soname##_##fnname /* Use this macro from within a wrapper function to collect the context (address and possibly other info) of the original function. Once you have that you can then use it in one of the CALL_FN_ macros. The type of the argument _lval is OrigFn. */ #define VALGRIND_GET_ORIG_FN(_lval) VALGRIND_GET_NR_CONTEXT(_lval) /* Derivatives of the main macros below, for calling functions returning void. */ #define CALL_FN_v_v(fnptr) \ do { volatile unsigned long _junk; \ CALL_FN_W_v(_junk,fnptr); } while (0) #define CALL_FN_v_W(fnptr, arg1) \ do { volatile unsigned long _junk; \ CALL_FN_W_W(_junk,fnptr,arg1); } while (0) #define CALL_FN_v_WW(fnptr, arg1,arg2) \ do { volatile unsigned long _junk; \ CALL_FN_W_WW(_junk,fnptr,arg1,arg2); } while (0) #define CALL_FN_v_WWW(fnptr, arg1,arg2,arg3) \ do { volatile unsigned long _junk; \ CALL_FN_W_WWW(_junk,fnptr,arg1,arg2,arg3); } while (0) /* ------------------------- x86-linux ------------------------- */ #if defined(PLAT_x86_linux) /* These regs are trashed by the hidden call. No need to mention eax as gcc can already see that, plus causes gcc to bomb. */ #define __CALLER_SAVED_REGS /*"eax"*/ "ecx", "edx" /* These CALL_FN_ macros assume that on x86-linux, sizeof(unsigned long) == 4. */ #define CALL_FN_W_v(lval, orig) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[1]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ __asm__ volatile( \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_W(lval, orig, arg1) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[2]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ __asm__ volatile( \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $4, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WW(lval, orig, arg1,arg2) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ __asm__ volatile( \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $8, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[4]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ __asm__ volatile( \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $12, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[5]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ __asm__ volatile( \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $16, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[6]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ __asm__ volatile( \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $20, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[7]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ __asm__ volatile( \ "pushl 24(%%eax)\n\t" \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $24, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[8]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ __asm__ volatile( \ "pushl 28(%%eax)\n\t" \ "pushl 24(%%eax)\n\t" \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $28, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[9]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ __asm__ volatile( \ "pushl 32(%%eax)\n\t" \ "pushl 28(%%eax)\n\t" \ "pushl 24(%%eax)\n\t" \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $32, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[10]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ __asm__ volatile( \ "pushl 36(%%eax)\n\t" \ "pushl 32(%%eax)\n\t" \ "pushl 28(%%eax)\n\t" \ "pushl 24(%%eax)\n\t" \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $36, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[11]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ _argvec[10] = (unsigned long)(arg10); \ __asm__ volatile( \ "pushl 40(%%eax)\n\t" \ "pushl 36(%%eax)\n\t" \ "pushl 32(%%eax)\n\t" \ "pushl 28(%%eax)\n\t" \ "pushl 24(%%eax)\n\t" \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $40, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5, \ arg6,arg7,arg8,arg9,arg10, \ arg11) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[12]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ _argvec[10] = (unsigned long)(arg10); \ _argvec[11] = (unsigned long)(arg11); \ __asm__ volatile( \ "pushl 44(%%eax)\n\t" \ "pushl 40(%%eax)\n\t" \ "pushl 36(%%eax)\n\t" \ "pushl 32(%%eax)\n\t" \ "pushl 28(%%eax)\n\t" \ "pushl 24(%%eax)\n\t" \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $44, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5, \ arg6,arg7,arg8,arg9,arg10, \ arg11,arg12) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[13]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ _argvec[10] = (unsigned long)(arg10); \ _argvec[11] = (unsigned long)(arg11); \ _argvec[12] = (unsigned long)(arg12); \ __asm__ volatile( \ "pushl 48(%%eax)\n\t" \ "pushl 44(%%eax)\n\t" \ "pushl 40(%%eax)\n\t" \ "pushl 36(%%eax)\n\t" \ "pushl 32(%%eax)\n\t" \ "pushl 28(%%eax)\n\t" \ "pushl 24(%%eax)\n\t" \ "pushl 20(%%eax)\n\t" \ "pushl 16(%%eax)\n\t" \ "pushl 12(%%eax)\n\t" \ "pushl 8(%%eax)\n\t" \ "pushl 4(%%eax)\n\t" \ "movl (%%eax), %%eax\n\t" /* target->%eax */ \ VALGRIND_CALL_NOREDIR_EAX \ "addl $48, %%esp\n" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #endif /* PLAT_x86_linux */ /* ------------------------ amd64-linux ------------------------ */ #if defined(PLAT_amd64_linux) /* ARGREGS: rdi rsi rdx rcx r8 r9 (the rest on stack in R-to-L order) */ /* These regs are trashed by the hidden call. */ #define __CALLER_SAVED_REGS /*"rax",*/ "rcx", "rdx", "rsi", \ "rdi", "r8", "r9", "r10", "r11" /* These CALL_FN_ macros assume that on amd64-linux, sizeof(unsigned long) == 8. */ /* NB 9 Sept 07. There is a nasty kludge here in all these CALL_FN_ macros. In order not to trash the stack redzone, we need to drop %rsp by 128 before the hidden call, and restore afterwards. The nastyness is that it is only by luck that the stack still appears to be unwindable during the hidden call - since then the behaviour of any routine using this macro does not match what the CFI data says. Sigh. Why is this important? Imagine that a wrapper has a stack allocated local, and passes to the hidden call, a pointer to it. Because gcc does not know about the hidden call, it may allocate that local in the redzone. Unfortunately the hidden call may then trash it before it comes to use it. So we must step clear of the redzone, for the duration of the hidden call, to make it safe. Probably the same problem afflicts the other redzone-style ABIs too (ppc64-linux, ppc32-aix5, ppc64-aix5); but for those, the stack is self describing (none of this CFI nonsense) so at least messing with the stack pointer doesn't give a danger of non-unwindable stack. */ #define CALL_FN_W_v(lval, orig) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[1]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_W(lval, orig, arg1) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[2]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WW(lval, orig, arg1,arg2) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[4]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[5]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[6]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[7]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "movq 48(%%rax), %%r9\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ "addq $128,%%rsp\n\t" \ VALGRIND_CALL_NOREDIR_RAX \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[8]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "pushq 56(%%rax)\n\t" \ "movq 48(%%rax), %%r9\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $8, %%rsp\n" \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[9]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "pushq 64(%%rax)\n\t" \ "pushq 56(%%rax)\n\t" \ "movq 48(%%rax), %%r9\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $16, %%rsp\n" \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[10]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "pushq 72(%%rax)\n\t" \ "pushq 64(%%rax)\n\t" \ "pushq 56(%%rax)\n\t" \ "movq 48(%%rax), %%r9\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $24, %%rsp\n" \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[11]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ _argvec[10] = (unsigned long)(arg10); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "pushq 80(%%rax)\n\t" \ "pushq 72(%%rax)\n\t" \ "pushq 64(%%rax)\n\t" \ "pushq 56(%%rax)\n\t" \ "movq 48(%%rax), %%r9\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $32, %%rsp\n" \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[12]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ _argvec[10] = (unsigned long)(arg10); \ _argvec[11] = (unsigned long)(arg11); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "pushq 88(%%rax)\n\t" \ "pushq 80(%%rax)\n\t" \ "pushq 72(%%rax)\n\t" \ "pushq 64(%%rax)\n\t" \ "pushq 56(%%rax)\n\t" \ "movq 48(%%rax), %%r9\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $40, %%rsp\n" \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11,arg12) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[13]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)(arg1); \ _argvec[2] = (unsigned long)(arg2); \ _argvec[3] = (unsigned long)(arg3); \ _argvec[4] = (unsigned long)(arg4); \ _argvec[5] = (unsigned long)(arg5); \ _argvec[6] = (unsigned long)(arg6); \ _argvec[7] = (unsigned long)(arg7); \ _argvec[8] = (unsigned long)(arg8); \ _argvec[9] = (unsigned long)(arg9); \ _argvec[10] = (unsigned long)(arg10); \ _argvec[11] = (unsigned long)(arg11); \ _argvec[12] = (unsigned long)(arg12); \ __asm__ volatile( \ "subq $128,%%rsp\n\t" \ "pushq 96(%%rax)\n\t" \ "pushq 88(%%rax)\n\t" \ "pushq 80(%%rax)\n\t" \ "pushq 72(%%rax)\n\t" \ "pushq 64(%%rax)\n\t" \ "pushq 56(%%rax)\n\t" \ "movq 48(%%rax), %%r9\n\t" \ "movq 40(%%rax), %%r8\n\t" \ "movq 32(%%rax), %%rcx\n\t" \ "movq 24(%%rax), %%rdx\n\t" \ "movq 16(%%rax), %%rsi\n\t" \ "movq 8(%%rax), %%rdi\n\t" \ "movq (%%rax), %%rax\n\t" /* target->%rax */ \ VALGRIND_CALL_NOREDIR_RAX \ "addq $48, %%rsp\n" \ "addq $128,%%rsp\n\t" \ : /*out*/ "=a" (_res) \ : /*in*/ "a" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #endif /* PLAT_amd64_linux */ /* ------------------------ ppc32-linux ------------------------ */ #if defined(PLAT_ppc32_linux) /* This is useful for finding out about the on-stack stuff: extern int f9 ( int,int,int,int,int,int,int,int,int ); extern int f10 ( int,int,int,int,int,int,int,int,int,int ); extern int f11 ( int,int,int,int,int,int,int,int,int,int,int ); extern int f12 ( int,int,int,int,int,int,int,int,int,int,int,int ); int g9 ( void ) { return f9(11,22,33,44,55,66,77,88,99); } int g10 ( void ) { return f10(11,22,33,44,55,66,77,88,99,110); } int g11 ( void ) { return f11(11,22,33,44,55,66,77,88,99,110,121); } int g12 ( void ) { return f12(11,22,33,44,55,66,77,88,99,110,121,132); } */ /* ARGREGS: r3 r4 r5 r6 r7 r8 r9 r10 (the rest on stack somewhere) */ /* These regs are trashed by the hidden call. */ #define __CALLER_SAVED_REGS \ "lr", "ctr", "xer", \ "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \ "r0", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", \ "r11", "r12", "r13" /* These CALL_FN_ macros assume that on ppc32-linux, sizeof(unsigned long) == 4. */ #define CALL_FN_W_v(lval, orig) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[1]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_W(lval, orig, arg1) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[2]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WW(lval, orig, arg1,arg2) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[4]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[5]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[6]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[7]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ _argvec[6] = (unsigned long)arg6; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 8,24(11)\n\t" \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[8]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ _argvec[6] = (unsigned long)arg6; \ _argvec[7] = (unsigned long)arg7; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 8,24(11)\n\t" \ "lwz 9,28(11)\n\t" \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[9]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ _argvec[6] = (unsigned long)arg6; \ _argvec[7] = (unsigned long)arg7; \ _argvec[8] = (unsigned long)arg8; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 8,24(11)\n\t" \ "lwz 9,28(11)\n\t" \ "lwz 10,32(11)\n\t" /* arg8->r10 */ \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[10]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ _argvec[6] = (unsigned long)arg6; \ _argvec[7] = (unsigned long)arg7; \ _argvec[8] = (unsigned long)arg8; \ _argvec[9] = (unsigned long)arg9; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "addi 1,1,-16\n\t" \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,8(1)\n\t" \ /* args1-8 */ \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 8,24(11)\n\t" \ "lwz 9,28(11)\n\t" \ "lwz 10,32(11)\n\t" /* arg8->r10 */ \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "addi 1,1,16\n\t" \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[11]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ _argvec[6] = (unsigned long)arg6; \ _argvec[7] = (unsigned long)arg7; \ _argvec[8] = (unsigned long)arg8; \ _argvec[9] = (unsigned long)arg9; \ _argvec[10] = (unsigned long)arg10; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "addi 1,1,-16\n\t" \ /* arg10 */ \ "lwz 3,40(11)\n\t" \ "stw 3,12(1)\n\t" \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,8(1)\n\t" \ /* args1-8 */ \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 8,24(11)\n\t" \ "lwz 9,28(11)\n\t" \ "lwz 10,32(11)\n\t" /* arg8->r10 */ \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "addi 1,1,16\n\t" \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[12]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ _argvec[6] = (unsigned long)arg6; \ _argvec[7] = (unsigned long)arg7; \ _argvec[8] = (unsigned long)arg8; \ _argvec[9] = (unsigned long)arg9; \ _argvec[10] = (unsigned long)arg10; \ _argvec[11] = (unsigned long)arg11; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "addi 1,1,-32\n\t" \ /* arg11 */ \ "lwz 3,44(11)\n\t" \ "stw 3,16(1)\n\t" \ /* arg10 */ \ "lwz 3,40(11)\n\t" \ "stw 3,12(1)\n\t" \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,8(1)\n\t" \ /* args1-8 */ \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 8,24(11)\n\t" \ "lwz 9,28(11)\n\t" \ "lwz 10,32(11)\n\t" /* arg8->r10 */ \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "addi 1,1,32\n\t" \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11,arg12) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[13]; \ volatile unsigned long _res; \ _argvec[0] = (unsigned long)_orig.nraddr; \ _argvec[1] = (unsigned long)arg1; \ _argvec[2] = (unsigned long)arg2; \ _argvec[3] = (unsigned long)arg3; \ _argvec[4] = (unsigned long)arg4; \ _argvec[5] = (unsigned long)arg5; \ _argvec[6] = (unsigned long)arg6; \ _argvec[7] = (unsigned long)arg7; \ _argvec[8] = (unsigned long)arg8; \ _argvec[9] = (unsigned long)arg9; \ _argvec[10] = (unsigned long)arg10; \ _argvec[11] = (unsigned long)arg11; \ _argvec[12] = (unsigned long)arg12; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "addi 1,1,-32\n\t" \ /* arg12 */ \ "lwz 3,48(11)\n\t" \ "stw 3,20(1)\n\t" \ /* arg11 */ \ "lwz 3,44(11)\n\t" \ "stw 3,16(1)\n\t" \ /* arg10 */ \ "lwz 3,40(11)\n\t" \ "stw 3,12(1)\n\t" \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,8(1)\n\t" \ /* args1-8 */ \ "lwz 3,4(11)\n\t" /* arg1->r3 */ \ "lwz 4,8(11)\n\t" \ "lwz 5,12(11)\n\t" \ "lwz 6,16(11)\n\t" /* arg4->r6 */ \ "lwz 7,20(11)\n\t" \ "lwz 8,24(11)\n\t" \ "lwz 9,28(11)\n\t" \ "lwz 10,32(11)\n\t" /* arg8->r10 */ \ "lwz 11,0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "addi 1,1,32\n\t" \ "mr %0,3" \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[0]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #endif /* PLAT_ppc32_linux */ /* ------------------------ ppc64-linux ------------------------ */ #if defined(PLAT_ppc64_linux) /* ARGREGS: r3 r4 r5 r6 r7 r8 r9 r10 (the rest on stack somewhere) */ /* These regs are trashed by the hidden call. */ #define __CALLER_SAVED_REGS \ "lr", "ctr", "xer", \ "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \ "r0", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", \ "r11", "r12", "r13" /* These CALL_FN_ macros assume that on ppc64-linux, sizeof(unsigned long) == 8. */ #define CALL_FN_W_v(lval, orig) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+0]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_W(lval, orig, arg1) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+1]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WW(lval, orig, arg1,arg2) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+2]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+3]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+4]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+5]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+6]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+7]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+8]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)" /* restore tocptr */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+9]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "addi 1,1,-128\n\t" /* expand stack frame */ \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ "addi 1,1,128" /* restore frame */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+10]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "addi 1,1,-128\n\t" /* expand stack frame */ \ /* arg10 */ \ "ld 3,80(11)\n\t" \ "std 3,120(1)\n\t" \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ "addi 1,1,128" /* restore frame */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+11]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ _argvec[2+11] = (unsigned long)arg11; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "addi 1,1,-144\n\t" /* expand stack frame */ \ /* arg11 */ \ "ld 3,88(11)\n\t" \ "std 3,128(1)\n\t" \ /* arg10 */ \ "ld 3,80(11)\n\t" \ "std 3,120(1)\n\t" \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ "addi 1,1,144" /* restore frame */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11,arg12) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+12]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ _argvec[2+11] = (unsigned long)arg11; \ _argvec[2+12] = (unsigned long)arg12; \ __asm__ volatile( \ "mr 11,%1\n\t" \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "addi 1,1,-144\n\t" /* expand stack frame */ \ /* arg12 */ \ "ld 3,96(11)\n\t" \ "std 3,136(1)\n\t" \ /* arg11 */ \ "ld 3,88(11)\n\t" \ "std 3,128(1)\n\t" \ /* arg10 */ \ "ld 3,80(11)\n\t" \ "std 3,120(1)\n\t" \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ "addi 1,1,144" /* restore frame */ \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #endif /* PLAT_ppc64_linux */ /* ------------------------ ppc32-aix5 ------------------------- */ #if defined(PLAT_ppc32_aix5) /* ARGREGS: r3 r4 r5 r6 r7 r8 r9 r10 (the rest on stack somewhere) */ /* These regs are trashed by the hidden call. */ #define __CALLER_SAVED_REGS \ "lr", "ctr", "xer", \ "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \ "r0", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", \ "r11", "r12", "r13" /* Expand the stack frame, copying enough info that unwinding still works. Trashes r3. */ #define VG_EXPAND_FRAME_BY_trashes_r3(_n_fr) \ "addi 1,1,-" #_n_fr "\n\t" \ "lwz 3," #_n_fr "(1)\n\t" \ "stw 3,0(1)\n\t" #define VG_CONTRACT_FRAME_BY(_n_fr) \ "addi 1,1," #_n_fr "\n\t" /* These CALL_FN_ macros assume that on ppc32-aix5, sizeof(unsigned long) == 4. */ #define CALL_FN_W_v(lval, orig) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+0]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_W(lval, orig, arg1) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+1]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WW(lval, orig, arg1,arg2) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+2]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+3]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+4]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+5]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+6]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 8, 24(11)\n\t" /* arg6->r8 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+7]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 8, 24(11)\n\t" /* arg6->r8 */ \ "lwz 9, 28(11)\n\t" /* arg7->r9 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+8]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 8, 24(11)\n\t" /* arg6->r8 */ \ "lwz 9, 28(11)\n\t" /* arg7->r9 */ \ "lwz 10, 32(11)\n\t" /* arg8->r10 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+9]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(64) \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,56(1)\n\t" \ /* args1-8 */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 8, 24(11)\n\t" /* arg6->r8 */ \ "lwz 9, 28(11)\n\t" /* arg7->r9 */ \ "lwz 10, 32(11)\n\t" /* arg8->r10 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(64) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+10]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(64) \ /* arg10 */ \ "lwz 3,40(11)\n\t" \ "stw 3,60(1)\n\t" \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,56(1)\n\t" \ /* args1-8 */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 8, 24(11)\n\t" /* arg6->r8 */ \ "lwz 9, 28(11)\n\t" /* arg7->r9 */ \ "lwz 10, 32(11)\n\t" /* arg8->r10 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(64) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+11]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ _argvec[2+11] = (unsigned long)arg11; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(72) \ /* arg11 */ \ "lwz 3,44(11)\n\t" \ "stw 3,64(1)\n\t" \ /* arg10 */ \ "lwz 3,40(11)\n\t" \ "stw 3,60(1)\n\t" \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,56(1)\n\t" \ /* args1-8 */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 8, 24(11)\n\t" /* arg6->r8 */ \ "lwz 9, 28(11)\n\t" /* arg7->r9 */ \ "lwz 10, 32(11)\n\t" /* arg8->r10 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(72) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11,arg12) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+12]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ _argvec[2+11] = (unsigned long)arg11; \ _argvec[2+12] = (unsigned long)arg12; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "stw 2,-8(11)\n\t" /* save tocptr */ \ "lwz 2,-4(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(72) \ /* arg12 */ \ "lwz 3,48(11)\n\t" \ "stw 3,68(1)\n\t" \ /* arg11 */ \ "lwz 3,44(11)\n\t" \ "stw 3,64(1)\n\t" \ /* arg10 */ \ "lwz 3,40(11)\n\t" \ "stw 3,60(1)\n\t" \ /* arg9 */ \ "lwz 3,36(11)\n\t" \ "stw 3,56(1)\n\t" \ /* args1-8 */ \ "lwz 3, 4(11)\n\t" /* arg1->r3 */ \ "lwz 4, 8(11)\n\t" /* arg2->r4 */ \ "lwz 5, 12(11)\n\t" /* arg3->r5 */ \ "lwz 6, 16(11)\n\t" /* arg4->r6 */ \ "lwz 7, 20(11)\n\t" /* arg5->r7 */ \ "lwz 8, 24(11)\n\t" /* arg6->r8 */ \ "lwz 9, 28(11)\n\t" /* arg7->r9 */ \ "lwz 10, 32(11)\n\t" /* arg8->r10 */ \ "lwz 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "lwz 2,-8(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(72) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #endif /* PLAT_ppc32_aix5 */ /* ------------------------ ppc64-aix5 ------------------------- */ #if defined(PLAT_ppc64_aix5) /* ARGREGS: r3 r4 r5 r6 r7 r8 r9 r10 (the rest on stack somewhere) */ /* These regs are trashed by the hidden call. */ #define __CALLER_SAVED_REGS \ "lr", "ctr", "xer", \ "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \ "r0", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", \ "r11", "r12", "r13" /* Expand the stack frame, copying enough info that unwinding still works. Trashes r3. */ #define VG_EXPAND_FRAME_BY_trashes_r3(_n_fr) \ "addi 1,1,-" #_n_fr "\n\t" \ "ld 3," #_n_fr "(1)\n\t" \ "std 3,0(1)\n\t" #define VG_CONTRACT_FRAME_BY(_n_fr) \ "addi 1,1," #_n_fr "\n\t" /* These CALL_FN_ macros assume that on ppc64-aix5, sizeof(unsigned long) == 8. */ #define CALL_FN_W_v(lval, orig) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+0]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_W(lval, orig, arg1) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+1]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WW(lval, orig, arg1,arg2) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+2]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWW(lval, orig, arg1,arg2,arg3) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+3]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_WWWW(lval, orig, arg1,arg2,arg3,arg4) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+4]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_5W(lval, orig, arg1,arg2,arg3,arg4,arg5) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+5]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_6W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+6]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_7W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+7]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_8W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+8]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_9W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+9]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(128) \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(128) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_10W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+10]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(128) \ /* arg10 */ \ "ld 3,80(11)\n\t" \ "std 3,120(1)\n\t" \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(128) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_11W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+11]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ _argvec[2+11] = (unsigned long)arg11; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(144) \ /* arg11 */ \ "ld 3,88(11)\n\t" \ "std 3,128(1)\n\t" \ /* arg10 */ \ "ld 3,80(11)\n\t" \ "std 3,120(1)\n\t" \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(144) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #define CALL_FN_W_12W(lval, orig, arg1,arg2,arg3,arg4,arg5,arg6, \ arg7,arg8,arg9,arg10,arg11,arg12) \ do { \ volatile OrigFn _orig = (orig); \ volatile unsigned long _argvec[3+12]; \ volatile unsigned long _res; \ /* _argvec[0] holds current r2 across the call */ \ _argvec[1] = (unsigned long)_orig.r2; \ _argvec[2] = (unsigned long)_orig.nraddr; \ _argvec[2+1] = (unsigned long)arg1; \ _argvec[2+2] = (unsigned long)arg2; \ _argvec[2+3] = (unsigned long)arg3; \ _argvec[2+4] = (unsigned long)arg4; \ _argvec[2+5] = (unsigned long)arg5; \ _argvec[2+6] = (unsigned long)arg6; \ _argvec[2+7] = (unsigned long)arg7; \ _argvec[2+8] = (unsigned long)arg8; \ _argvec[2+9] = (unsigned long)arg9; \ _argvec[2+10] = (unsigned long)arg10; \ _argvec[2+11] = (unsigned long)arg11; \ _argvec[2+12] = (unsigned long)arg12; \ __asm__ volatile( \ "mr 11,%1\n\t" \ VG_EXPAND_FRAME_BY_trashes_r3(512) \ "std 2,-16(11)\n\t" /* save tocptr */ \ "ld 2,-8(11)\n\t" /* use nraddr's tocptr */ \ VG_EXPAND_FRAME_BY_trashes_r3(144) \ /* arg12 */ \ "ld 3,96(11)\n\t" \ "std 3,136(1)\n\t" \ /* arg11 */ \ "ld 3,88(11)\n\t" \ "std 3,128(1)\n\t" \ /* arg10 */ \ "ld 3,80(11)\n\t" \ "std 3,120(1)\n\t" \ /* arg9 */ \ "ld 3,72(11)\n\t" \ "std 3,112(1)\n\t" \ /* args1-8 */ \ "ld 3, 8(11)\n\t" /* arg1->r3 */ \ "ld 4, 16(11)\n\t" /* arg2->r4 */ \ "ld 5, 24(11)\n\t" /* arg3->r5 */ \ "ld 6, 32(11)\n\t" /* arg4->r6 */ \ "ld 7, 40(11)\n\t" /* arg5->r7 */ \ "ld 8, 48(11)\n\t" /* arg6->r8 */ \ "ld 9, 56(11)\n\t" /* arg7->r9 */ \ "ld 10, 64(11)\n\t" /* arg8->r10 */ \ "ld 11, 0(11)\n\t" /* target->r11 */ \ VALGRIND_BRANCH_AND_LINK_TO_NOREDIR_R11 \ "mr 11,%1\n\t" \ "mr %0,3\n\t" \ "ld 2,-16(11)\n\t" /* restore tocptr */ \ VG_CONTRACT_FRAME_BY(144) \ VG_CONTRACT_FRAME_BY(512) \ : /*out*/ "=r" (_res) \ : /*in*/ "r" (&_argvec[2]) \ : /*trash*/ "cc", "memory", __CALLER_SAVED_REGS \ ); \ lval = (__typeof__(lval)) _res; \ } while (0) #endif /* PLAT_ppc64_aix5 */ /* ------------------------------------------------------------------ */ /* ARCHITECTURE INDEPENDENT MACROS for CLIENT REQUESTS. */ /* */ /* ------------------------------------------------------------------ */ /* Some request codes. There are many more of these, but most are not exposed to end-user view. These are the public ones, all of the form 0x1000 + small_number. Core ones are in the range 0x00000000--0x0000ffff. The non-public ones start at 0x2000. */ /* These macros are used by tools -- they must be public, but don't embed them into other programs. */ #define VG_USERREQ_TOOL_BASE(a,b) \ ((unsigned int)(((a)&0xff) << 24 | ((b)&0xff) << 16)) #define VG_IS_TOOL_USERREQ(a, b, v) \ (VG_USERREQ_TOOL_BASE(a,b) == ((v) & 0xffff0000)) /* !! ABIWARNING !! ABIWARNING !! ABIWARNING !! ABIWARNING !! This enum comprises an ABI exported by Valgrind to programs which use client requests. DO NOT CHANGE THE ORDER OF THESE ENTRIES, NOR DELETE ANY -- add new ones at the end. */ typedef enum { VG_USERREQ__RUNNING_ON_VALGRIND = 0x1001, VG_USERREQ__DISCARD_TRANSLATIONS = 0x1002, /* These allow any function to be called from the simulated CPU but run on the real CPU. Nb: the first arg passed to the function is always the ThreadId of the running thread! So CLIENT_CALL0 actually requires a 1 arg function, etc. */ VG_USERREQ__CLIENT_CALL0 = 0x1101, VG_USERREQ__CLIENT_CALL1 = 0x1102, VG_USERREQ__CLIENT_CALL2 = 0x1103, VG_USERREQ__CLIENT_CALL3 = 0x1104, /* Can be useful in regression testing suites -- eg. can send Valgrind's output to /dev/null and still count errors. */ VG_USERREQ__COUNT_ERRORS = 0x1201, /* These are useful and can be interpreted by any tool that tracks malloc() et al, by using vg_replace_malloc.c. */ VG_USERREQ__MALLOCLIKE_BLOCK = 0x1301, VG_USERREQ__FREELIKE_BLOCK = 0x1302, /* Memory pool support. */ VG_USERREQ__CREATE_MEMPOOL = 0x1303, VG_USERREQ__DESTROY_MEMPOOL = 0x1304, VG_USERREQ__MEMPOOL_ALLOC = 0x1305, VG_USERREQ__MEMPOOL_FREE = 0x1306, VG_USERREQ__MEMPOOL_TRIM = 0x1307, VG_USERREQ__MOVE_MEMPOOL = 0x1308, VG_USERREQ__MEMPOOL_CHANGE = 0x1309, VG_USERREQ__MEMPOOL_EXISTS = 0x130a, /* Allow printfs to valgrind log. */ VG_USERREQ__PRINTF = 0x1401, VG_USERREQ__PRINTF_BACKTRACE = 0x1402, /* Stack support. */ VG_USERREQ__STACK_REGISTER = 0x1501, VG_USERREQ__STACK_DEREGISTER = 0x1502, VG_USERREQ__STACK_CHANGE = 0x1503 } Vg_ClientRequest; #if !defined(__GNUC__) # define __extension__ /* */ #endif /* Returns the number of Valgrinds this code is running under. That is, 0 if running natively, 1 if running under Valgrind, 2 if running under Valgrind which is running under another Valgrind, etc. */ #define RUNNING_ON_VALGRIND __extension__ \ ({unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0 /* if not */, \ VG_USERREQ__RUNNING_ON_VALGRIND, \ 0, 0, 0, 0, 0); \ _qzz_res; \ }) /* Discard translation of code in the range [_qzz_addr .. _qzz_addr + _qzz_len - 1]. Useful if you are debugging a JITter or some such, since it provides a way to make sure valgrind will retranslate the invalidated area. Returns no value. */ #define VALGRIND_DISCARD_TRANSLATIONS(_qzz_addr,_qzz_len) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__DISCARD_TRANSLATIONS, \ _qzz_addr, _qzz_len, 0, 0, 0); \ } /* These requests are for getting Valgrind itself to print something. Possibly with a backtrace. This is a really ugly hack. */ #if defined(NVALGRIND) # define VALGRIND_PRINTF(...) # define VALGRIND_PRINTF_BACKTRACE(...) #else /* NVALGRIND */ /* Modern GCC will optimize the static routine out if unused, and unused attribute will shut down warnings about it. */ static int VALGRIND_PRINTF(const char *format, ...) __attribute__((format(__printf__, 1, 2), __unused__)); static int VALGRIND_PRINTF(const char *format, ...) { unsigned long _qzz_res; va_list vargs; va_start(vargs, format); VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, VG_USERREQ__PRINTF, (unsigned long)format, (unsigned long)vargs, 0, 0, 0); va_end(vargs); return (int)_qzz_res; } static int VALGRIND_PRINTF_BACKTRACE(const char *format, ...) __attribute__((format(__printf__, 1, 2), __unused__)); static int VALGRIND_PRINTF_BACKTRACE(const char *format, ...) { unsigned long _qzz_res; va_list vargs; va_start(vargs, format); VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, VG_USERREQ__PRINTF_BACKTRACE, (unsigned long)format, (unsigned long)vargs, 0, 0, 0); va_end(vargs); return (int)_qzz_res; } #endif /* NVALGRIND */ /* These requests allow control to move from the simulated CPU to the real CPU, calling an arbitary function. Note that the current ThreadId is inserted as the first argument. So this call: VALGRIND_NON_SIMD_CALL2(f, arg1, arg2) requires f to have this signature: Word f(Word tid, Word arg1, Word arg2) where "Word" is a word-sized type. Note that these client requests are not entirely reliable. For example, if you call a function with them that subsequently calls printf(), there's a high chance Valgrind will crash. Generally, your prospects of these working are made higher if the called function does not refer to any global variables, and does not refer to any libc or other functions (printf et al). Any kind of entanglement with libc or dynamic linking is likely to have a bad outcome, for tricky reasons which we've grappled with a lot in the past. */ #define VALGRIND_NON_SIMD_CALL0(_qyy_fn) \ __extension__ \ ({unsigned long _qyy_res; \ VALGRIND_DO_CLIENT_REQUEST(_qyy_res, 0 /* default return */, \ VG_USERREQ__CLIENT_CALL0, \ _qyy_fn, \ 0, 0, 0, 0); \ _qyy_res; \ }) #define VALGRIND_NON_SIMD_CALL1(_qyy_fn, _qyy_arg1) \ __extension__ \ ({unsigned long _qyy_res; \ VALGRIND_DO_CLIENT_REQUEST(_qyy_res, 0 /* default return */, \ VG_USERREQ__CLIENT_CALL1, \ _qyy_fn, \ _qyy_arg1, 0, 0, 0); \ _qyy_res; \ }) #define VALGRIND_NON_SIMD_CALL2(_qyy_fn, _qyy_arg1, _qyy_arg2) \ __extension__ \ ({unsigned long _qyy_res; \ VALGRIND_DO_CLIENT_REQUEST(_qyy_res, 0 /* default return */, \ VG_USERREQ__CLIENT_CALL2, \ _qyy_fn, \ _qyy_arg1, _qyy_arg2, 0, 0); \ _qyy_res; \ }) #define VALGRIND_NON_SIMD_CALL3(_qyy_fn, _qyy_arg1, _qyy_arg2, _qyy_arg3) \ __extension__ \ ({unsigned long _qyy_res; \ VALGRIND_DO_CLIENT_REQUEST(_qyy_res, 0 /* default return */, \ VG_USERREQ__CLIENT_CALL3, \ _qyy_fn, \ _qyy_arg1, _qyy_arg2, \ _qyy_arg3, 0); \ _qyy_res; \ }) /* Counts the number of errors that have been recorded by a tool. Nb: the tool must record the errors with VG_(maybe_record_error)() or VG_(unique_error)() for them to be counted. */ #define VALGRIND_COUNT_ERRORS \ __extension__ \ ({unsigned int _qyy_res; \ VALGRIND_DO_CLIENT_REQUEST(_qyy_res, 0 /* default return */, \ VG_USERREQ__COUNT_ERRORS, \ 0, 0, 0, 0, 0); \ _qyy_res; \ }) /* Mark a block of memory as having been allocated by a malloc()-like function. `addr' is the start of the usable block (ie. after any redzone) `rzB' is redzone size if the allocator can apply redzones; use '0' if not. Adding redzones makes it more likely Valgrind will spot block overruns. `is_zeroed' indicates if the memory is zeroed, as it is for calloc(). Put it immediately after the point where a block is allocated. If you're using Memcheck: If you're allocating memory via superblocks, and then handing out small chunks of each superblock, if you don't have redzones on your small blocks, it's worth marking the superblock with VALGRIND_MAKE_MEM_NOACCESS when it's created, so that block overruns are detected. But if you can put redzones on, it's probably better to not do this, so that messages for small overruns are described in terms of the small block rather than the superblock (but if you have a big overrun that skips over a redzone, you could miss an error this way). See memcheck/tests/custom_alloc.c for an example. WARNING: if your allocator uses malloc() or 'new' to allocate superblocks, rather than mmap() or brk(), this will not work properly -- you'll likely get assertion failures during leak detection. This is because Valgrind doesn't like seeing overlapping heap blocks. Sorry. Nb: block must be freed via a free()-like function specified with VALGRIND_FREELIKE_BLOCK or mismatch errors will occur. */ #define VALGRIND_MALLOCLIKE_BLOCK(addr, sizeB, rzB, is_zeroed) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__MALLOCLIKE_BLOCK, \ addr, sizeB, rzB, is_zeroed, 0); \ } /* Mark a block of memory as having been freed by a free()-like function. `rzB' is redzone size; it must match that given to VALGRIND_MALLOCLIKE_BLOCK. Memory not freed will be detected by the leak checker. Put it immediately after the point where the block is freed. */ #define VALGRIND_FREELIKE_BLOCK(addr, rzB) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__FREELIKE_BLOCK, \ addr, rzB, 0, 0, 0); \ } /* Create a memory pool. */ #define VALGRIND_CREATE_MEMPOOL(pool, rzB, is_zeroed) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__CREATE_MEMPOOL, \ pool, rzB, is_zeroed, 0, 0); \ } /* Destroy a memory pool. */ #define VALGRIND_DESTROY_MEMPOOL(pool) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__DESTROY_MEMPOOL, \ pool, 0, 0, 0, 0); \ } /* Associate a piece of memory with a memory pool. */ #define VALGRIND_MEMPOOL_ALLOC(pool, addr, size) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__MEMPOOL_ALLOC, \ pool, addr, size, 0, 0); \ } /* Disassociate a piece of memory from a memory pool. */ #define VALGRIND_MEMPOOL_FREE(pool, addr) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__MEMPOOL_FREE, \ pool, addr, 0, 0, 0); \ } /* Disassociate any pieces outside a particular range. */ #define VALGRIND_MEMPOOL_TRIM(pool, addr, size) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__MEMPOOL_TRIM, \ pool, addr, size, 0, 0); \ } /* Resize and/or move a piece associated with a memory pool. */ #define VALGRIND_MOVE_MEMPOOL(poolA, poolB) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__MOVE_MEMPOOL, \ poolA, poolB, 0, 0, 0); \ } /* Resize and/or move a piece associated with a memory pool. */ #define VALGRIND_MEMPOOL_CHANGE(pool, addrA, addrB, size) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__MEMPOOL_CHANGE, \ pool, addrA, addrB, size, 0); \ } /* Return 1 if a mempool exists, else 0. */ #define VALGRIND_MEMPOOL_EXISTS(pool) \ ({unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__MEMPOOL_EXISTS, \ pool, 0, 0, 0, 0); \ _qzz_res; \ }) /* Mark a piece of memory as being a stack. Returns a stack id. */ #define VALGRIND_STACK_REGISTER(start, end) \ ({unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__STACK_REGISTER, \ start, end, 0, 0, 0); \ _qzz_res; \ }) /* Unmark the piece of memory associated with a stack id as being a stack. */ #define VALGRIND_STACK_DEREGISTER(id) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__STACK_DEREGISTER, \ id, 0, 0, 0, 0); \ } /* Change the start and end address of the stack id. */ #define VALGRIND_STACK_CHANGE(id, start, end) \ {unsigned int _qzz_res; \ VALGRIND_DO_CLIENT_REQUEST(_qzz_res, 0, \ VG_USERREQ__STACK_CHANGE, \ id, start, end, 0, 0); \ } #undef PLAT_x86_linux #undef PLAT_amd64_linux #undef PLAT_ppc32_linux #undef PLAT_ppc64_linux #undef PLAT_ppc32_aix5 #undef PLAT_ppc64_aix5 #endif /* __VALGRIND_H */ gperftools-2.4/src/windows/0000755000000000000000000000000012454304761013001 500000000000000gperftools-2.4/src/windows/gperftools/0000755000000000000000000000000012454304761015165 500000000000000gperftools-2.4/src/windows/gperftools/tcmalloc.h.in0000644000000000000000000001244612440704174017465 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2003, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat * .h.in file by Craig Silverstein */ #ifndef TCMALLOC_TCMALLOC_H_ #define TCMALLOC_TCMALLOC_H_ #include // for size_t #ifdef HAVE_SYS_CDEFS_H #include // where glibc defines __THROW #endif // __THROW is defined in glibc systems. It means, counter-intuitively, // "This function will never throw an exception." It's an optional // optimization tool, but we may need to use it to match glibc prototypes. #ifndef __THROW /* I guess we're not on a glibc system */ # define __THROW /* __THROW is just an optimization, so ok to make it "" */ #endif // Define the version number so folks can check against it #define TC_VERSION_MAJOR @TC_VERSION_MAJOR@ #define TC_VERSION_MINOR @TC_VERSION_MINOR@ #define TC_VERSION_PATCH "@TC_VERSION_PATCH@" #define TC_VERSION_STRING "gperftools @TC_VERSION_MAJOR@.@TC_VERSION_MINOR@@TC_VERSION_PATCH@" #include // for struct mallinfo, if it's defined // Annoying stuff for windows -- makes sure clients can import these functions #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif #ifdef __cplusplus namespace std { struct nothrow_t; } extern "C" { #endif // Returns a human-readable version string. If major, minor, // and/or patch are not NULL, they are set to the major version, // minor version, and patch-code (a string, usually ""). PERFTOOLS_DLL_DECL const char* tc_version(int* major, int* minor, const char** patch) __THROW; PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) __THROW; PERFTOOLS_DLL_DECL void tc_free(void* ptr) __THROW; PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_calloc(size_t nmemb, size_t size) __THROW; PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) __THROW; PERFTOOLS_DLL_DECL void* tc_memalign(size_t __alignment, size_t __size) __THROW; PERFTOOLS_DLL_DECL int tc_posix_memalign(void** ptr, size_t align, size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_valloc(size_t __size) __THROW; PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t __size) __THROW; PERFTOOLS_DLL_DECL void tc_malloc_stats(void) __THROW; PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) __THROW; #if 0 PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) __THROW; #endif // This is an alias for MallocExtension::instance()->GetAllocatedSize(). // It is equivalent to // OS X: malloc_size() // glibc: malloc_usable_size() // Windows: _msize() PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) __THROW; #ifdef __cplusplus PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) __THROW; PERFTOOLS_DLL_DECL void* tc_new(size_t size); PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void tc_delete(void* p) __THROW; PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void* tc_newarray(size_t size); PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void tc_deletearray(void* p) __THROW; PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p, const std::nothrow_t&) __THROW; } #endif #endif // #ifndef TCMALLOC_TCMALLOC_H_ gperftools-2.4/src/windows/gperftools/tcmalloc.h0000644000000000000000000001227612454304640017060 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2003, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Sanjay Ghemawat * .h.in file by Craig Silverstein */ #ifndef TCMALLOC_TCMALLOC_H_ #define TCMALLOC_TCMALLOC_H_ #include // for size_t #ifdef HAVE_SYS_CDEFS_H #include // where glibc defines __THROW #endif // __THROW is defined in glibc systems. It means, counter-intuitively, // "This function will never throw an exception." It's an optional // optimization tool, but we may need to use it to match glibc prototypes. #ifndef __THROW /* I guess we're not on a glibc system */ # define __THROW /* __THROW is just an optimization, so ok to make it "" */ #endif // Define the version number so folks can check against it #define TC_VERSION_MAJOR 2 #define TC_VERSION_MINOR 4 #define TC_VERSION_PATCH "" #define TC_VERSION_STRING "gperftools 2.4" #include // for struct mallinfo, if it's defined // Annoying stuff for windows -- makes sure clients can import these functions #ifndef PERFTOOLS_DLL_DECL # ifdef _WIN32 # define PERFTOOLS_DLL_DECL __declspec(dllimport) # else # define PERFTOOLS_DLL_DECL # endif #endif #ifdef __cplusplus namespace std { struct nothrow_t; } extern "C" { #endif // Returns a human-readable version string. If major, minor, // and/or patch are not NULL, they are set to the major version, // minor version, and patch-code (a string, usually ""). PERFTOOLS_DLL_DECL const char* tc_version(int* major, int* minor, const char** patch) __THROW; PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) __THROW; PERFTOOLS_DLL_DECL void tc_free(void* ptr) __THROW; PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_calloc(size_t nmemb, size_t size) __THROW; PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) __THROW; PERFTOOLS_DLL_DECL void* tc_memalign(size_t __alignment, size_t __size) __THROW; PERFTOOLS_DLL_DECL int tc_posix_memalign(void** ptr, size_t align, size_t size) __THROW; PERFTOOLS_DLL_DECL void* tc_valloc(size_t __size) __THROW; PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t __size) __THROW; PERFTOOLS_DLL_DECL void tc_malloc_stats(void) __THROW; PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) __THROW; #if 0 PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) __THROW; #endif // This is an alias for MallocExtension::instance()->GetAllocatedSize(). // It is equivalent to // OS X: malloc_size() // glibc: malloc_usable_size() // Windows: _msize() PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) __THROW; #ifdef __cplusplus PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) __THROW; PERFTOOLS_DLL_DECL void* tc_new(size_t size); PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void tc_delete(void* p) __THROW; PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void* tc_newarray(size_t size); PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size, const std::nothrow_t&) __THROW; PERFTOOLS_DLL_DECL void tc_deletearray(void* p) __THROW; PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p, const std::nothrow_t&) __THROW; } #endif #endif // #ifndef TCMALLOC_TCMALLOC_H_ gperftools-2.4/src/windows/port.h0000644000000000000000000003677212440704174014072 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Craig Silverstein * * These are some portability typedefs and defines to make it a bit * easier to compile this code under VC++. * * Several of these are taken from glib: * http://developer.gnome.org/doc/API/glib/glib-windows-compatability-functions.html */ #ifndef GOOGLE_BASE_WINDOWS_H_ #define GOOGLE_BASE_WINDOWS_H_ /* You should never include this file directly, but always include it from either config.h (MSVC) or mingw.h (MinGW/msys). */ #if !defined(GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_) && \ !defined(GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_) # error "port.h should only be included from config.h or mingw.h" #endif #ifdef _WIN32 #ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN /* We always want minimal includes */ #endif #include #include /* because we so often use open/close/etc */ #include /* for _getcwd */ #include /* for _getpid */ #include /* for PATH_MAX */ #include /* for va_list */ #include /* need this to override stdio's (v)snprintf */ #include /* for _off_t */ #include #include /* for rand, srand, _strtoxxx */ /* * 4018: signed/unsigned mismatch is common (and ok for signed_i < unsigned_i) * 4244: otherwise we get problems when subtracting two size_t's to an int * 4288: VC++7 gets confused when a var is defined in a loop and then after it * 4267: too many false positives for "conversion gives possible data loss" * 4290: it's ok windows ignores the "throw" directive * 4996: Yes, we're ok using "unsafe" functions like vsnprintf and getenv() * 4146: internal_logging.cc intentionally negates an unsigned value */ #ifdef _MSC_VER #pragma warning(disable:4018 4244 4288 4267 4290 4996 4146) #endif #ifndef __cplusplus /* MSVC does not support C99 */ # if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L # ifdef _MSC_VER # define inline __inline # else # define inline static # endif # endif #endif #ifdef __cplusplus # define EXTERN_C extern "C" #else # define EXTERN_C extern #endif /* ----------------------------------- BASIC TYPES */ #ifndef HAVE_STDINT_H #ifndef HAVE___INT64 /* we need to have all the __intX names */ # error Do not know how to set up type aliases. Edit port.h for your system. #endif typedef __int8 int8_t; typedef __int16 int16_t; typedef __int32 int32_t; typedef __int64 int64_t; typedef unsigned __int8 uint8_t; typedef unsigned __int16 uint16_t; typedef unsigned __int32 uint32_t; typedef unsigned __int64 uint64_t; #endif /* #ifndef HAVE_STDINT_H */ /* I guess MSVC's doesn't include ssize_t by default? */ #ifdef _MSC_VER typedef intptr_t ssize_t; #endif /* ----------------------------------- THREADS */ #ifndef HAVE_PTHREAD /* not true for MSVC, but may be true for MSYS */ typedef DWORD pthread_t; typedef DWORD pthread_key_t; typedef LONG pthread_once_t; enum { PTHREAD_ONCE_INIT = 0 }; /* important that this be 0! for SpinLock */ inline pthread_t pthread_self(void) { return GetCurrentThreadId(); } #ifdef __cplusplus inline bool pthread_equal(pthread_t left, pthread_t right) { return left == right; } /* * windows/port.h defines compatibility APIs for several .h files, which * we therefore shouldn't be #including directly. This hack keeps us from * doing so. TODO(csilvers): do something more principled. */ #define GOOGLE_MAYBE_THREADS_H_ 1 /* This replaces maybe_threads.{h,cc} */ EXTERN_C pthread_key_t PthreadKeyCreate(void (*destr_fn)(void*)); /* port.cc */ inline int perftools_pthread_key_create(pthread_key_t *pkey, void (*destructor)(void*)) { pthread_key_t key = PthreadKeyCreate(destructor); if (key != TLS_OUT_OF_INDEXES) { *(pkey) = key; return 0; } else { return GetLastError(); } } inline void* perftools_pthread_getspecific(DWORD key) { DWORD err = GetLastError(); void* rv = TlsGetValue(key); if (err) SetLastError(err); return rv; } inline int perftools_pthread_setspecific(pthread_key_t key, const void *value) { if (TlsSetValue(key, (LPVOID)value)) return 0; else return GetLastError(); } EXTERN_C int perftools_pthread_once(pthread_once_t *once_control, void (*init_routine)(void)); #endif /* __cplusplus */ inline void sched_yield(void) { Sleep(0); } #endif /* HAVE_PTHREAD */ /* * __declspec(thread) isn't usable in a dll opened via LoadLibrary(). * But it doesn't work to LoadLibrary() us anyway, because of all the * things we need to do before main()! So this kind of TLS is safe for us. */ #define __thread __declspec(thread) /* * This code is obsolete, but I keep it around in case we are ever in * an environment where we can't or don't want to use google spinlocks * (from base/spinlock.{h,cc}). In that case, uncommenting this out, * and removing spinlock.cc from the build, should be enough to revert * back to using native spinlocks. */ #if 0 // Windows uses a spinlock internally for its mutexes, making our life easy! // However, the Windows spinlock must always be initialized, making life hard, // since we want LINKER_INITIALIZED. We work around this by having the // linker initialize a bool to 0, and check that before accessing the mutex. // This replaces spinlock.{h,cc}, and all the stuff it depends on (atomicops) #ifdef __cplusplus class SpinLock { public: SpinLock() : initialize_token_(PTHREAD_ONCE_INIT) {} // Used for global SpinLock vars (see base/spinlock.h for more details). enum StaticInitializer { LINKER_INITIALIZED }; explicit SpinLock(StaticInitializer) : initialize_token_(PTHREAD_ONCE_INIT) { perftools_pthread_once(&initialize_token_, InitializeMutex); } // It's important SpinLock not have a destructor: otherwise we run // into problems when the main thread has exited, but other threads // are still running and try to access a main-thread spinlock. This // means we leak mutex_ (we should call DeleteCriticalSection() // here). However, I've verified that all SpinLocks used in // perftools have program-long scope anyway, so the leak is // perfectly fine. But be aware of this for the future! void Lock() { // You'd thionk this would be unnecessary, since we call // InitializeMutex() in our constructor. But sometimes Lock() can // be called before our constructor is! This can only happen in // global constructors, when this is a global. If we live in // bar.cc, and some global constructor in foo.cc calls a routine // in bar.cc that calls this->Lock(), then Lock() may well run // before our global constructor does. To protect against that, // we do this check. For SpinLock objects created after main() // has started, this pthread_once call will always be a noop. perftools_pthread_once(&initialize_token_, InitializeMutex); EnterCriticalSection(&mutex_); } void Unlock() { LeaveCriticalSection(&mutex_); } // Used in assertion checks: assert(lock.IsHeld()) (see base/spinlock.h). inline bool IsHeld() const { // This works, but probes undocumented internals, so I've commented it out. // c.f. http://msdn.microsoft.com/msdnmag/issues/03/12/CriticalSections/ //return mutex_.LockCount>=0 && mutex_.OwningThread==GetCurrentThreadId(); return true; } private: void InitializeMutex() { InitializeCriticalSection(&mutex_); } pthread_once_t initialize_token_; CRITICAL_SECTION mutex_; }; class SpinLockHolder { // Acquires a spinlock for as long as the scope lasts private: SpinLock* lock_; public: inline explicit SpinLockHolder(SpinLock* l) : lock_(l) { l->Lock(); } inline ~SpinLockHolder() { lock_->Unlock(); } }; #endif // #ifdef __cplusplus // This keeps us from using base/spinlock.h's implementation of SpinLock. #define BASE_SPINLOCK_H_ 1 #endif /* #if 0 */ /* ----------------------------------- MMAP and other memory allocation */ #ifndef HAVE_MMAP /* not true for MSVC, but may be true for msys */ #define MAP_FAILED 0 #define MREMAP_FIXED 2 /* the value in linux, though it doesn't really matter */ /* These, when combined with the mmap invariants below, yield the proper action */ #define PROT_READ PAGE_READWRITE #define PROT_WRITE PAGE_READWRITE #define MAP_ANONYMOUS MEM_RESERVE #define MAP_PRIVATE MEM_COMMIT #define MAP_SHARED MEM_RESERVE /* value of this #define is 100% arbitrary */ #if __STDC__ && !defined(__MINGW32__) typedef _off_t off_t; #endif /* VirtualAlloc only replaces for mmap when certain invariants are kept. */ inline void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) { if (addr == NULL && fd == -1 && offset == 0 && prot == (PROT_READ|PROT_WRITE) && flags == (MAP_PRIVATE|MAP_ANONYMOUS)) { return VirtualAlloc(0, length, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE); } else { return NULL; } } inline int munmap(void *addr, size_t length) { return VirtualFree(addr, 0, MEM_RELEASE) ? 0 : -1; } #endif /* HAVE_MMAP */ /* We could maybe use VirtualAlloc for sbrk as well, but no need */ inline void *sbrk(intptr_t increment) { // sbrk returns -1 on failure return (void*)-1; } /* ----------------------------------- STRING ROUTINES */ /* * We can't just use _vsnprintf and _snprintf as drop-in-replacements, * because they don't always NUL-terminate. :-( We also can't use the * name vsnprintf, since windows defines that (but not snprintf (!)). */ #if defined(_MSC_VER) && _MSC_VER >= 1400 /* We can use safe CRT functions, which the required functionality */ inline int perftools_vsnprintf(char *str, size_t size, const char *format, va_list ap) { return vsnprintf_s(str, size, _TRUNCATE, format, ap); } #else inline int perftools_vsnprintf(char *str, size_t size, const char *format, va_list ap) { if (size == 0) /* not even room for a \0? */ return -1; /* not what C99 says to do, but what windows does */ str[size-1] = '\0'; return _vsnprintf(str, size-1, format, ap); } #endif #ifndef HAVE_SNPRINTF inline int snprintf(char *str, size_t size, const char *format, ...) { va_list ap; int r; va_start(ap, format); r = perftools_vsnprintf(str, size, format, ap); va_end(ap); return r; } #endif #define PRIx64 "I64x" #define SCNx64 "I64x" #define PRId64 "I64d" #define SCNd64 "I64d" #define PRIu64 "I64u" #ifdef _WIN64 # define PRIuPTR "llu" # define PRIxPTR "llx" #else # define PRIuPTR "lu" # define PRIxPTR "lx" #endif /* ----------------------------------- FILE IO */ #ifndef PATH_MAX #define PATH_MAX 1024 #endif #ifndef __MINGW32__ enum { STDIN_FILENO = 0, STDOUT_FILENO = 1, STDERR_FILENO = 2 }; #endif #ifndef O_RDONLY #define O_RDONLY _O_RDONLY #endif #if __STDC__ && !defined(__MINGW32__) /* These functions are considered non-standard */ inline int access(const char *pathname, int mode) { return _access(pathname, mode); } inline int open(const char *pathname, int flags, int mode = 0) { return _open(pathname, flags, mode); } inline int close(int fd) { return _close(fd); } inline ssize_t read(int fd, void *buf, size_t count) { return _read(fd, buf, count); } inline ssize_t write(int fd, const void *buf, size_t count) { return _write(fd, buf, count); } inline off_t lseek(int fd, off_t offset, int whence) { return _lseek(fd, offset, whence); } inline char *getcwd(char *buf, size_t size) { return _getcwd(buf, size); } inline int mkdir(const char *pathname, int) { return _mkdir(pathname); } inline FILE *popen(const char *command, const char *type) { return _popen(command, type); } inline int pclose(FILE *stream) { return _pclose(stream); } #endif EXTERN_C PERFTOOLS_DLL_DECL void WriteToStderr(const char* buf, int len); /* ----------------------------------- SYSTEM/PROCESS */ #ifndef HAVE_PID_T typedef int pid_t; #endif #if __STDC__ && !defined(__MINGW32__) inline pid_t getpid(void) { return _getpid(); } #endif inline pid_t getppid(void) { return 0; } /* Handle case when poll is used to simulate sleep. */ inline int poll(struct pollfd* fds, int nfds, int timeout) { assert(fds == NULL); assert(nfds == 0); Sleep(timeout); return 0; } EXTERN_C PERFTOOLS_DLL_DECL int getpagesize(); /* in port.cc */ /* ----------------------------------- OTHER */ inline void srandom(unsigned int seed) { srand(seed); } inline long random(void) { return rand(); } #ifndef HAVE_DECL_SLEEP #define HAVE_DECL_SLEEP 0 #endif #if !HAVE_DECL_SLEEP inline unsigned int sleep(unsigned int seconds) { Sleep(seconds * 1000); return 0; } #endif // mingw64 seems to define timespec (though mingw.org mingw doesn't), // protected by the _TIMESPEC_DEFINED macro. #ifndef _TIMESPEC_DEFINED struct timespec { int tv_sec; int tv_nsec; }; #endif #ifndef HAVE_DECL_NANOSLEEP #define HAVE_DECL_NANOSLEEP 0 #endif // latest mingw64 has nanosleep. Earlier mingw and MSVC do not #if !HAVE_DECL_NANOSLEEP inline int nanosleep(const struct timespec *req, struct timespec *rem) { Sleep(req->tv_sec * 1000 + req->tv_nsec / 1000000); return 0; } #endif #ifndef __MINGW32__ #if _MSC_VER < 1800 inline long long int strtoll(const char *nptr, char **endptr, int base) { return _strtoi64(nptr, endptr, base); } inline unsigned long long int strtoull(const char *nptr, char **endptr, int base) { return _strtoui64(nptr, endptr, base); } inline long long int strtoq(const char *nptr, char **endptr, int base) { return _strtoi64(nptr, endptr, base); } #endif inline unsigned long long int strtouq(const char *nptr, char **endptr, int base) { return _strtoui64(nptr, endptr, base); } inline long long atoll(const char *nptr) { return _atoi64(nptr); } #endif #define __THROW throw() /* ----------------------------------- TCMALLOC-SPECIFIC */ /* tcmalloc.cc calls this so we can patch VirtualAlloc() et al. */ extern void PatchWindowsFunctions(); #endif /* _WIN32 */ #undef inline #undef EXTERN_C #endif /* GOOGLE_BASE_WINDOWS_H_ */ gperftools-2.4/src/windows/mingw.h0000644000000000000000000000545712440704174014223 00000000000000/* -*- Mode: C; c-basic-offset: 2; indent-tabs-mode: nil -*- */ /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Craig Silverstein * * MinGW is an interesting mix of unix and windows. We use a normal * configure script, but still need the windows port.h to define some * stuff that MinGW doesn't support, like pthreads. */ #ifndef GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_ #define GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_ #ifdef __MINGW32__ // Older version of the mingw msvcrt don't define _aligned_malloc #if __MSVCRT_VERSION__ < 0x0700 # define PERFTOOLS_NO_ALIGNED_MALLOC 1 #endif // This must be defined before the windows.h is included. We need at // least 0x0400 for mutex.h to have access to TryLock, and at least // 0x0501 for patch_functions.cc to have access to GetModuleHandleEx. // (This latter is an optimization we could take out if need be.) #ifndef _WIN32_WINNT # define _WIN32_WINNT 0x0501 #endif #define HAVE_SNPRINTF 1 // Some mingw distributions have a pthreads wrapper, but it doesn't // work as well as native windows spinlocks (at least for us). So // pretend the pthreads wrapper doesn't exist, even when it does. #ifndef HAVE_PTHREAD_DESPITE_ASKING_FOR #undef HAVE_PTHREAD #endif #define HAVE_PID_T #include "windows/port.h" #endif /* __MINGW32__ */ #endif /* GOOGLE_PERFTOOLS_WINDOWS_MINGW_H_ */ gperftools-2.4/src/windows/mini_disassembler.h0000644000000000000000000001770412440704174016571 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * * Definition of MiniDisassembler. */ #ifndef GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_H_ #define GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_H_ #include "config.h" #include #include "mini_disassembler_types.h" // compatibility shim #include "base/logging.h" #define SIDESTEP_ASSERT(cond) RAW_DCHECK(cond, #cond) #define SIDESTEP_LOG(msg) RAW_VLOG(1, msg) namespace sidestep { // This small disassembler is very limited // in its functionality, and in fact does only the bare minimum required by the // preamble patching utility. It may be useful for other purposes, however. // // The limitations include at least the following: // -# No support for coprocessor opcodes, MMX, etc. // -# No machine-readable identification of opcodes or decoding of // assembly parameters. The name of the opcode (as a string) is given, // however, to aid debugging. // // You may ask what this little disassembler actually does, then? The answer is // that it does the following, which is exactly what the patching utility needs: // -# Indicates if opcode is a jump (any kind) or a return (any kind) // because this is important for the patching utility to determine if // a function is too short or there are jumps too early in it for it // to be preamble patched. // -# The opcode length is always calculated, so that the patching utility // can figure out where the next instruction starts, and whether it // already has enough instructions to replace with the absolute jump // to the patching code. // // The usage is quite simple; just create a MiniDisassembler and use its // Disassemble() method. // // If you would like to extend this disassembler, please refer to the // IA-32 Intel Architecture Software Developers Manual Volume 2: // Instruction Set Reference for information about operand decoding // etc. class PERFTOOLS_DLL_DECL MiniDisassembler { public: // Creates a new instance and sets defaults. // // @param operand_default_32_bits If true, the default operand size is // set to 32 bits, which is the default under Win32. Otherwise it is 16 bits. // @param address_default_32_bits If true, the default address size is // set to 32 bits, which is the default under Win32. Otherwise it is 16 bits. MiniDisassembler(bool operand_default_32_bits, bool address_default_32_bits); // Equivalent to MiniDisassembler(true, true); MiniDisassembler(); // Attempts to disassemble a single instruction starting from the // address in memory it is pointed to. // // @param start Address where disassembly should start. // @param instruction_bytes Variable that will be incremented by // the length in bytes of the instruction. // @return enItJump, enItReturn or enItGeneric on success. enItUnknown // if unable to disassemble, enItUnused if this seems to be an unused // opcode. In the last two (error) cases, cbInstruction will be set // to 0xffffffff. // // @post This instance of the disassembler is ready to be used again, // with unchanged defaults from creation time. InstructionType Disassemble(unsigned char* start, unsigned int& instruction_bytes); private: // Makes the disassembler ready for reuse. void Initialize(); // Sets the flags for address and operand sizes. // @return Number of prefix bytes. InstructionType ProcessPrefixes(unsigned char* start, unsigned int& size); // Sets the flag for whether we have ModR/M, and increments // operand_bytes_ if any are specifies by the opcode directly. // @return Number of opcode bytes. InstructionType ProcessOpcode(unsigned char* start, unsigned int table, unsigned int& size); // Checks the type of the supplied operand. Increments // operand_bytes_ if it directly indicates an immediate etc. // operand. Asserts have_modrm_ if the operand specifies // a ModR/M byte. bool ProcessOperand(int flag_operand); // Increments operand_bytes_ by size specified by ModR/M and // by SIB if present. // @return 0 in case of error, 1 if there is just a ModR/M byte, // 2 if there is a ModR/M byte and a SIB byte. bool ProcessModrm(unsigned char* start, unsigned int& size); // Processes the SIB byte that it is pointed to. // @param start Pointer to the SIB byte. // @param mod The mod field from the ModR/M byte. // @return 1 to indicate success (indicates 1 SIB byte) bool ProcessSib(unsigned char* start, unsigned char mod, unsigned int& size); // The instruction type we have decoded from the opcode. InstructionType instruction_type_; // Counts the number of bytes that is occupied by operands in // the current instruction (note: we don't care about how large // operands stored in registers etc. are). unsigned int operand_bytes_; // True iff there is a ModR/M byte in this instruction. bool have_modrm_; // True iff we need to decode the ModR/M byte (sometimes it just // points to a register, we can tell by the addressing mode). bool should_decode_modrm_; // Current operand size is 32 bits if true, 16 bits if false. bool operand_is_32_bits_; // Default operand size is 32 bits if true, 16 bits if false. bool operand_default_is_32_bits_; // Current address size is 32 bits if true, 16 bits if false. bool address_is_32_bits_; // Default address size is 32 bits if true, 16 bits if false. bool address_default_is_32_bits_; // Determines if 64 bit operands are supported (x64). bool operand_default_support_64_bits_; // Current operand size is 64 bits if true, 32 bits if false. bool operand_is_64_bits_; // Huge big opcode table based on the IA-32 manual, defined // in Ia32OpcodeMap.cc static const OpcodeTable s_ia32_opcode_map_[]; // Somewhat smaller table to help with decoding ModR/M bytes // when 16-bit addressing mode is being used. Defined in // Ia32ModrmMap.cc static const ModrmEntry s_ia16_modrm_map_[]; // Somewhat smaller table to help with decoding ModR/M bytes // when 32-bit addressing mode is being used. Defined in // Ia32ModrmMap.cc static const ModrmEntry s_ia32_modrm_map_[]; // Indicators of whether we got certain prefixes that certain // silly Intel instructions depend on in nonstandard ways for // their behaviors. bool got_f2_prefix_, got_f3_prefix_, got_66_prefix_; }; }; // namespace sidestep #endif // GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_H_ gperftools-2.4/src/windows/mini_disassembler_types.h0000644000000000000000000002045212440704174020007 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * * Several simple types used by the disassembler and some of the patching * mechanisms. */ #ifndef GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_TYPES_H_ #define GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_TYPES_H_ namespace sidestep { // Categories of instructions that we care about enum InstructionType { // This opcode is not used IT_UNUSED, // This disassembler does not recognize this opcode (error) IT_UNKNOWN, // This is not an instruction but a reference to another table IT_REFERENCE, // This byte is a prefix byte that we can ignore IT_PREFIX, // This is a prefix byte that switches to the nondefault address size IT_PREFIX_ADDRESS, // This is a prefix byte that switches to the nondefault operand size IT_PREFIX_OPERAND, // A jump or call instruction IT_JUMP, // A return instruction IT_RETURN, // Any other type of instruction (in this case we don't care what it is) IT_GENERIC, }; // Lists IA-32 operand sizes in multiples of 8 bits enum OperandSize { OS_ZERO = 0, OS_BYTE = 1, OS_WORD = 2, OS_DOUBLE_WORD = 4, OS_QUAD_WORD = 8, OS_DOUBLE_QUAD_WORD = 16, OS_32_BIT_POINTER = 32/8, OS_48_BIT_POINTER = 48/8, OS_SINGLE_PRECISION_FLOATING = 32/8, OS_DOUBLE_PRECISION_FLOATING = 64/8, OS_DOUBLE_EXTENDED_PRECISION_FLOATING = 80/8, OS_128_BIT_PACKED_SINGLE_PRECISION_FLOATING = 128/8, OS_PSEUDO_DESCRIPTOR = 6 }; // Operand addressing methods from the IA-32 manual. The enAmMask value // is a mask for the rest. The other enumeration values are named for the // names given to the addressing methods in the manual, e.g. enAm_D is for // the D addressing method. // // The reason we use a full 4 bytes and a mask, is that we need to combine // these flags with the enOperandType to store the details // on the operand in a single integer. enum AddressingMethod { AM_NOT_USED = 0, // This operand is not used for this instruction AM_MASK = 0x00FF0000, // Mask for the rest of the values in this enumeration AM_A = 0x00010000, // A addressing type AM_C = 0x00020000, // C addressing type AM_D = 0x00030000, // D addressing type AM_E = 0x00040000, // E addressing type AM_F = 0x00050000, // F addressing type AM_G = 0x00060000, // G addressing type AM_I = 0x00070000, // I addressing type AM_J = 0x00080000, // J addressing type AM_M = 0x00090000, // M addressing type AM_O = 0x000A0000, // O addressing type AM_P = 0x000B0000, // P addressing type AM_Q = 0x000C0000, // Q addressing type AM_R = 0x000D0000, // R addressing type AM_S = 0x000E0000, // S addressing type AM_T = 0x000F0000, // T addressing type AM_V = 0x00100000, // V addressing type AM_W = 0x00110000, // W addressing type AM_X = 0x00120000, // X addressing type AM_Y = 0x00130000, // Y addressing type AM_REGISTER = 0x00140000, // Specific register is always used as this op AM_IMPLICIT = 0x00150000, // An implicit, fixed value is used }; // Operand types from the IA-32 manual. The enOtMask value is // a mask for the rest. The rest of the values are named for the // names given to these operand types in the manual, e.g. enOt_ps // is for the ps operand type in the manual. // // The reason we use a full 4 bytes and a mask, is that we need // to combine these flags with the enAddressingMethod to store the details // on the operand in a single integer. enum OperandType { OT_MASK = 0xFF000000, OT_A = 0x01000000, OT_B = 0x02000000, OT_C = 0x03000000, OT_D = 0x04000000, OT_DQ = 0x05000000, OT_P = 0x06000000, OT_PI = 0x07000000, OT_PS = 0x08000000, // actually unsupported for (we don't know its size) OT_Q = 0x09000000, OT_S = 0x0A000000, OT_SS = 0x0B000000, OT_SI = 0x0C000000, OT_V = 0x0D000000, OT_W = 0x0E000000, OT_SD = 0x0F000000, // scalar double-precision floating-point value OT_PD = 0x10000000, // double-precision floating point // dummy "operand type" for address mode M - which doesn't specify // operand type OT_ADDRESS_MODE_M = 0x80000000 }; // Flag that indicates if an immediate operand is 64-bits. // // The Intel 64 and IA-32 Architecture Software Developer's Manual currently // defines MOV as the only instruction supporting a 64-bit immediate operand. enum ImmediateOperandSize { IOS_MASK = 0x0000F000, IOS_DEFAULT = 0x0, IOS_64 = 0x00001000 }; // Everything that's in an Opcode (see below) except the three // alternative opcode structs for different prefixes. struct SpecificOpcode { // Index to continuation table, or 0 if this is the last // byte in the opcode. int table_index_; // The opcode type InstructionType type_; // Description of the type of the dest, src and aux operands, // put together from enOperandType, enAddressingMethod and // enImmediateOperandSize flags. int flag_dest_; int flag_source_; int flag_aux_; // We indicate the mnemonic for debugging purposes const char* mnemonic_; }; // The information we keep in our tables about each of the different // valid instructions recognized by the IA-32 architecture. struct Opcode { // Index to continuation table, or 0 if this is the last // byte in the opcode. int table_index_; // The opcode type InstructionType type_; // Description of the type of the dest, src and aux operands, // put together from an enOperandType flag and an enAddressingMethod // flag. int flag_dest_; int flag_source_; int flag_aux_; // We indicate the mnemonic for debugging purposes const char* mnemonic_; // Alternative opcode info if certain prefixes are specified. // In most cases, all of these are zeroed-out. Only used if // bPrefixDependent is true. bool is_prefix_dependent_; SpecificOpcode opcode_if_f2_prefix_; SpecificOpcode opcode_if_f3_prefix_; SpecificOpcode opcode_if_66_prefix_; }; // Information about each table entry. struct OpcodeTable { // Table of instruction entries const Opcode* table_; // How many bytes left to shift ModR/M byte before applying mask unsigned char shift_; // Mask to apply to byte being looked at before comparing to table unsigned char mask_; // Minimum/maximum indexes in table. unsigned char min_lim_; unsigned char max_lim_; }; // Information about each entry in table used to decode ModR/M byte. struct ModrmEntry { // Is the operand encoded as bytes in the instruction (rather than // if it's e.g. a register in which case it's just encoded in the // ModR/M byte) bool is_encoded_in_instruction_; // Is there a SIB byte? In this case we always need to decode it. bool use_sib_byte_; // What is the size of the operand (only important if it's encoded // in the instruction)? OperandSize operand_size_; }; }; // namespace sidestep #endif // GOOGLE_PERFTOOLS_MINI_DISASSEMBLER_TYPES_H_ gperftools-2.4/src/windows/preamble_patcher.h0000644000000000000000000006352512440704174016377 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * Author: Scott Francis * * Definition of PreamblePatcher */ #ifndef GOOGLE_PERFTOOLS_PREAMBLE_PATCHER_H_ #define GOOGLE_PERFTOOLS_PREAMBLE_PATCHER_H_ #include "config.h" #include // compatibility shim #include "base/logging.h" #define SIDESTEP_ASSERT(cond) RAW_DCHECK(cond, #cond) #define SIDESTEP_LOG(msg) RAW_VLOG(1, msg) // Maximum size of the preamble stub. We overwrite at least the first 5 // bytes of the function. Considering the worst case scenario, we need 4 // bytes + the max instruction size + 5 more bytes for our jump back to // the original code. With that in mind, 32 is a good number :) #ifdef _M_X64 // In 64-bit mode we may need more room. In 64-bit mode all jumps must be // within +/-2GB of RIP. Because of this limitation we may need to use a // trampoline to jump to the replacement function if it is further than 2GB // away from the target. The trampoline is 14 bytes. // // So 4 bytes + max instruction size (17 bytes) + 5 bytes to jump back to the // original code + trampoline size. 64 bytes is a nice number :-) #define MAX_PREAMBLE_STUB_SIZE (64) #else #define MAX_PREAMBLE_STUB_SIZE (32) #endif // Determines if this is a 64-bit binary. #ifdef _M_X64 static const bool kIs64BitBinary = true; #else static const bool kIs64BitBinary = false; #endif namespace sidestep { // Possible results of patching/unpatching enum SideStepError { SIDESTEP_SUCCESS = 0, SIDESTEP_INVALID_PARAMETER, SIDESTEP_INSUFFICIENT_BUFFER, SIDESTEP_JUMP_INSTRUCTION, SIDESTEP_FUNCTION_TOO_SMALL, SIDESTEP_UNSUPPORTED_INSTRUCTION, SIDESTEP_NO_SUCH_MODULE, SIDESTEP_NO_SUCH_FUNCTION, SIDESTEP_ACCESS_DENIED, SIDESTEP_UNEXPECTED, }; #define SIDESTEP_TO_HRESULT(error) \ MAKE_HRESULT(SEVERITY_ERROR, FACILITY_NULL, error) class DeleteUnsignedCharArray; // Implements a patching mechanism that overwrites the first few bytes of // a function preamble with a jump to our hook function, which is then // able to call the original function via a specially-made preamble-stub // that imitates the action of the original preamble. // // NOTE: This patching mechanism should currently only be used for // non-production code, e.g. unit tests, because it is not threadsafe. // See the TODO in preamble_patcher_with_stub.cc for instructions on what // we need to do before using it in production code; it's fairly simple // but unnecessary for now since we only intend to use it in unit tests. // // To patch a function, use either of the typesafe Patch() methods. You // can unpatch a function using Unpatch(). // // Typical usage goes something like this: // @code // typedef int (*MyTypesafeFuncPtr)(int x); // MyTypesafeFuncPtr original_func_stub; // int MyTypesafeFunc(int x) { return x + 1; } // int HookMyTypesafeFunc(int x) { return 1 + original_func_stub(x); } // // void MyPatchInitializingFunction() { // original_func_stub = PreamblePatcher::Patch( // MyTypesafeFunc, HookMyTypesafeFunc); // if (!original_func_stub) { // // ... error handling ... // } // // // ... continue - you have patched the function successfully ... // } // @endcode // // Note that there are a number of ways that this method of patching can // fail. The most common are: // - If there is a jump (jxx) instruction in the first 5 bytes of // the function being patched, we cannot patch it because in the // current implementation we do not know how to rewrite relative // jumps after relocating them to the preamble-stub. Note that // if you really really need to patch a function like this, it // would be possible to add this functionality (but at some cost). // - If there is a return (ret) instruction in the first 5 bytes // we cannot patch the function because it may not be long enough // for the jmp instruction we use to inject our patch. // - If there is another thread currently executing within the bytes // that are copied to the preamble stub, it will crash in an undefined // way. // // If you get any other error than the above, you're either pointing the // patcher at an invalid instruction (e.g. into the middle of a multi- // byte instruction, or not at memory containing executable instructions) // or, there may be a bug in the disassembler we use to find // instruction boundaries. // // NOTE: In optimized builds, when you have very trivial functions that // the compiler can reason do not have side effects, the compiler may // reuse the result of calling the function with a given parameter, which // may mean if you patch the function in between your patch will never get // invoked. See preamble_patcher_test.cc for an example. class PERFTOOLS_DLL_DECL PreamblePatcher { public: // This is a typesafe version of RawPatch(), identical in all other // ways than it takes a template parameter indicating the type of the // function being patched. // // @param T The type of the function you are patching. Usually // you will establish this type using a typedef, as in the following // example: // @code // typedef BOOL (WINAPI *MessageBoxPtr)(HWND, LPCTSTR, LPCTSTR, UINT); // MessageBoxPtr original = NULL; // PreamblePatcher::Patch(MessageBox, Hook_MessageBox, &original); // @endcode template static SideStepError Patch(T target_function, T replacement_function, T* original_function_stub) { // NOTE: casting from a function to a pointer is contra the C++ // spec. It's not safe on IA64, but is on i386. We use // a C-style cast here to emphasize this is not legal C++. return RawPatch((void*)(target_function), (void*)(replacement_function), (void**)(original_function_stub)); } // Patches a named function imported from the named module using // preamble patching. Uses RawPatch() to do the actual patching // work. // // @param T The type of the function you are patching. Must // exactly match the function you specify using module_name and // function_name. // // @param module_name The name of the module from which the function // is being imported. Note that the patch will fail if this module // has not already been loaded into the current process. // // @param function_name The name of the function you wish to patch. // // @param replacement_function Your replacement function which // will be called whenever code tries to call the original function. // // @param original_function_stub Pointer to memory that should receive a // pointer that can be used (e.g. in the replacement function) to call the // original function, or NULL to indicate failure. // // @return One of the EnSideStepError error codes; only SIDESTEP_SUCCESS // indicates success. template static SideStepError Patch(LPCTSTR module_name, LPCSTR function_name, T replacement_function, T* original_function_stub) { SIDESTEP_ASSERT(module_name && function_name); if (!module_name || !function_name) { SIDESTEP_ASSERT(false && "You must specify a module name and function name."); return SIDESTEP_INVALID_PARAMETER; } HMODULE module = ::GetModuleHandle(module_name); SIDESTEP_ASSERT(module != NULL); if (!module) { SIDESTEP_ASSERT(false && "Invalid module name."); return SIDESTEP_NO_SUCH_MODULE; } FARPROC existing_function = ::GetProcAddress(module, function_name); if (!existing_function) { SIDESTEP_ASSERT( false && "Did not find any function with that name in the module."); return SIDESTEP_NO_SUCH_FUNCTION; } // NOTE: casting from a function to a pointer is contra the C++ // spec. It's not safe on IA64, but is on i386. We use // a C-style cast here to emphasize this is not legal C++. return RawPatch((void*)existing_function, (void*)replacement_function, (void**)(original_function_stub)); } // Patches a function by overwriting its first few bytes with // a jump to a different function. This is the "worker" function // for each of the typesafe Patch() functions. In most cases, // it is preferable to use the Patch() functions rather than // this one as they do more checking at compile time. // // @param target_function A pointer to the function that should be // patched. // // @param replacement_function A pointer to the function that should // replace the target function. The replacement function must have // exactly the same calling convention and parameters as the original // function. // // @param original_function_stub Pointer to memory that should receive a // pointer that can be used (e.g. in the replacement function) to call the // original function, or NULL to indicate failure. // // @param original_function_stub Pointer to memory that should receive a // pointer that can be used (e.g. in the replacement function) to call the // original function, or NULL to indicate failure. // // @return One of the EnSideStepError error codes; only SIDESTEP_SUCCESS // indicates success. // // @note The preamble-stub (the memory pointed to by // *original_function_stub) is allocated on the heap, and (in // production binaries) never destroyed, resulting in a memory leak. This // will be the case until we implement safe unpatching of a method. // However, it is quite difficult to unpatch a method (because other // threads in the process may be using it) so we are leaving it for now. // See however UnsafeUnpatch, which can be used for binaries where you // know only one thread is running, e.g. unit tests. static SideStepError RawPatch(void* target_function, void* replacement_function, void** original_function_stub); // Unpatches target_function and deletes the stub that previously could be // used to call the original version of the function. // // DELETES the stub that is passed to the function. // // @param target_function Pointer to the target function which was // previously patched, i.e. a pointer which value should match the value // of the symbol prior to patching it. // // @param replacement_function Pointer to the function target_function // was patched to. // // @param original_function_stub Pointer to the stub returned when // patching, that could be used to call the original version of the // patched function. This function will also delete the stub, which after // unpatching is useless. // // If your original call was // Patch(VirtualAlloc, MyVirtualAlloc, &origptr) // then to undo it you would call // Unpatch(VirtualAlloc, MyVirtualAlloc, origptr); // // @return One of the EnSideStepError error codes; only SIDESTEP_SUCCESS // indicates success. static SideStepError Unpatch(void* target_function, void* replacement_function, void* original_function_stub); // A helper routine when patching, which follows jmp instructions at // function addresses, to get to the "actual" function contents. // This allows us to identify two functions that are at different // addresses but actually resolve to the same code. // // @param target_function Pointer to a function. // // @return Either target_function (the input parameter), or if // target_function's body consists entirely of a JMP instruction, // the address it JMPs to (or more precisely, the address at the end // of a chain of JMPs). template static T ResolveTarget(T target_function) { return (T)ResolveTargetImpl((unsigned char*)target_function, NULL); } // Allocates a block of memory of size MAX_PREAMBLE_STUB_SIZE that is as // close (within 2GB) as possible to target. This is done to ensure that // we can perform a relative jump from target to a trampoline if the // replacement function is > +-2GB from target. This means that we only need // to patch 5 bytes in the target function. // // @param target Pointer to target function. // // @return Returns a block of memory of size MAX_PREAMBLE_STUB_SIZE that can // be used to store a function preamble block. static unsigned char* AllocPreambleBlockNear(void* target); // Frees a block allocated by AllocPreambleBlockNear. // // @param block Block that was returned by AllocPreambleBlockNear. static void FreePreambleBlock(unsigned char* block); private: friend class DeleteUnsignedCharArray; // Used to store data allocated for preamble stubs struct PreamblePage { unsigned int magic_; PreamblePage* next_; // This member points to a linked list of free blocks within the page // or NULL if at the end void* free_; }; // In 64-bit mode, the replacement function must be within 2GB of the original // target in order to only require 5 bytes for the function patch. To meet // this requirement we're creating an allocator within this class to // allocate blocks that are within 2GB of a given target. This member is the // head of a linked list of pages used to allocate blocks that are within // 2GB of the target. static PreamblePage* preamble_pages_; // Page granularity static long granularity_; // Page size static long pagesize_; // Determines if the patcher has been initialized. static bool initialized_; // Used to initialize static members. static void Initialize(); // Patches a function by overwriting its first few bytes with // a jump to a different function. This is similar to the RawPatch // function except that it uses the stub allocated by the caller // instead of allocating it. // // We call VirtualProtect to make the // target function writable at least for the duration of the call. // // @param target_function A pointer to the function that should be // patched. // // @param replacement_function A pointer to the function that should // replace the target function. The replacement function must have // exactly the same calling convention and parameters as the original // function. // // @param preamble_stub A pointer to a buffer where the preamble stub // should be copied. The size of the buffer should be sufficient to // hold the preamble bytes. // // @param stub_size Size in bytes of the buffer allocated for the // preamble_stub // // @param bytes_needed Pointer to a variable that receives the minimum // number of bytes required for the stub. Can be set to NULL if you're // not interested. // // @return An error code indicating the result of patching. static SideStepError RawPatchWithStubAndProtections( void* target_function, void* replacement_function, unsigned char* preamble_stub, unsigned long stub_size, unsigned long* bytes_needed); // A helper function used by RawPatchWithStubAndProtections -- it // does everything but the VirtualProtect work. Defined in // preamble_patcher_with_stub.cc. // // @param target_function A pointer to the function that should be // patched. // // @param replacement_function A pointer to the function that should // replace the target function. The replacement function must have // exactly the same calling convention and parameters as the original // function. // // @param preamble_stub A pointer to a buffer where the preamble stub // should be copied. The size of the buffer should be sufficient to // hold the preamble bytes. // // @param stub_size Size in bytes of the buffer allocated for the // preamble_stub // // @param bytes_needed Pointer to a variable that receives the minimum // number of bytes required for the stub. Can be set to NULL if you're // not interested. // // @return An error code indicating the result of patching. static SideStepError RawPatchWithStub(void* target_function, void* replacement_function, unsigned char* preamble_stub, unsigned long stub_size, unsigned long* bytes_needed); // A helper routine when patching, which follows jmp instructions at // function addresses, to get to the "actual" function contents. // This allows us to identify two functions that are at different // addresses but actually resolve to the same code. // // @param target_function Pointer to a function. // // @param stop_before If, when following JMP instructions from // target_function, we get to the address stop, we return // immediately, the address that jumps to stop_before. // // @param stop_before_trampoline When following JMP instructions from // target_function, stop before a trampoline is detected. See comment in // PreamblePatcher::RawPatchWithStub for more information. This parameter // has no effect in 32-bit mode. // // @return Either target_function (the input parameter), or if // target_function's body consists entirely of a JMP instruction, // the address it JMPs to (or more precisely, the address at the end // of a chain of JMPs). static void* ResolveTargetImpl(unsigned char* target_function, unsigned char* stop_before, bool stop_before_trampoline = false); // Helper routine that attempts to allocate a page as close (within 2GB) // as possible to target. // // @param target Pointer to target function. // // @return Returns an address that is within 2GB of target. static void* AllocPageNear(void* target); // Helper routine that determines if a target instruction is a short // conditional jump. // // @param target Pointer to instruction. // // @param instruction_size Size of the instruction in bytes. // // @return Returns true if the instruction is a short conditional jump. static bool IsShortConditionalJump(unsigned char* target, unsigned int instruction_size); static bool IsShortJump(unsigned char *target, unsigned int instruction_size); // Helper routine that determines if a target instruction is a near // conditional jump. // // @param target Pointer to instruction. // // @param instruction_size Size of the instruction in bytes. // // @return Returns true if the instruction is a near conditional jump. static bool IsNearConditionalJump(unsigned char* target, unsigned int instruction_size); // Helper routine that determines if a target instruction is a near // relative jump. // // @param target Pointer to instruction. // // @param instruction_size Size of the instruction in bytes. // // @return Returns true if the instruction is a near absolute jump. static bool IsNearRelativeJump(unsigned char* target, unsigned int instruction_size); // Helper routine that determines if a target instruction is a near // absolute call. // // @param target Pointer to instruction. // // @param instruction_size Size of the instruction in bytes. // // @return Returns true if the instruction is a near absolute call. static bool IsNearAbsoluteCall(unsigned char* target, unsigned int instruction_size); // Helper routine that determines if a target instruction is a near // absolute call. // // @param target Pointer to instruction. // // @param instruction_size Size of the instruction in bytes. // // @return Returns true if the instruction is a near absolute call. static bool IsNearRelativeCall(unsigned char* target, unsigned int instruction_size); // Helper routine that determines if a target instruction is a 64-bit MOV // that uses a RIP-relative displacement. // // @param target Pointer to instruction. // // @param instruction_size Size of the instruction in bytes. // // @return Returns true if the instruction is a MOV with displacement. static bool IsMovWithDisplacement(unsigned char* target, unsigned int instruction_size); // Helper routine that converts a short conditional jump instruction // to a near conditional jump in a target buffer. Note that the target // buffer must be within 2GB of the source for the near jump to work. // // A short conditional jump instruction is in the format: // 7x xx = Jcc rel8off // // @param source Pointer to instruction. // // @param instruction_size Size of the instruction. // // @param target Target buffer to write the new instruction. // // @param target_bytes Pointer to a buffer that contains the size // of the target instruction, in bytes. // // @param target_size Size of the target buffer. // // @return Returns SIDESTEP_SUCCESS if successful, otherwise an error. static SideStepError PatchShortConditionalJump(unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size); static SideStepError PatchShortJump(unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size); // Helper routine that converts an instruction that will convert various // jump-like instructions to corresponding instructions in the target buffer. // What this routine does is fix up the relative offsets contained in jump // instructions to point back to the original target routine. Like with // PatchShortConditionalJump, the target buffer must be within 2GB of the // source. // // We currently handle the following instructions: // // E9 xx xx xx xx = JMP rel32off // 0F 8x xx xx xx xx = Jcc rel32off // FF /2 xx xx xx xx = CALL reg/mem32/mem64 // E8 xx xx xx xx = CALL rel32off // // It should not be hard to update this function to support other // instructions that jump to relative targets. // // @param source Pointer to instruction. // // @param instruction_size Size of the instruction. // // @param target Target buffer to write the new instruction. // // @param target_bytes Pointer to a buffer that contains the size // of the target instruction, in bytes. // // @param target_size Size of the target buffer. // // @return Returns SIDESTEP_SUCCESS if successful, otherwise an error. static SideStepError PatchNearJumpOrCall(unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size); // Helper routine that patches a 64-bit MOV instruction with a RIP-relative // displacement. The target buffer must be within 2GB of the source. // // 48 8B 0D XX XX XX XX = MOV rel32off // // @param source Pointer to instruction. // // @param instruction_size Size of the instruction. // // @param target Target buffer to write the new instruction. // // @param target_bytes Pointer to a buffer that contains the size // of the target instruction, in bytes. // // @param target_size Size of the target buffer. // // @return Returns SIDESTEP_SUCCESS if successful, otherwise an error. static SideStepError PatchMovWithDisplacement(unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size); }; }; // namespace sidestep #endif // GOOGLE_PERFTOOLS_PREAMBLE_PATCHER_H_ gperftools-2.4/src/windows/port.cc0000644000000000000000000002160712450132572014215 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Craig Silverstein */ #ifndef _WIN32 # error You should only be including windows/port.cc in a windows environment! #endif #define NOMINMAX // so std::max, below, compiles correctly #include #include // for strlen(), memset(), memcmp() #include #include // for va_list, va_start, va_end #include // for std:{min,max} #include #include "port.h" #include "base/logging.h" #include "base/spinlock.h" #include "internal_logging.h" // ----------------------------------------------------------------------- // Basic libraries PERFTOOLS_DLL_DECL int getpagesize() { static int pagesize = 0; if (pagesize == 0) { SYSTEM_INFO system_info; GetSystemInfo(&system_info); pagesize = std::max(system_info.dwPageSize, system_info.dwAllocationGranularity); } return pagesize; } extern "C" PERFTOOLS_DLL_DECL void* __sbrk(ptrdiff_t increment) { LOG(FATAL, "Windows doesn't implement sbrk!\n"); return NULL; } // We need to write to 'stderr' without having windows allocate memory. // The safest way is via a low-level call like WriteConsoleA(). But // even then we need to be sure to print in small bursts so as to not // require memory allocation. extern "C" PERFTOOLS_DLL_DECL void WriteToStderr(const char* buf, int len) { // Looks like windows allocates for writes of >80 bytes for (int i = 0; i < len; i += 80) { write(STDERR_FILENO, buf + i, std::min(80, len - i)); } } // ----------------------------------------------------------------------- // Threads code // Windows doesn't support pthread_key_create's destr_function, and in // fact it's a bit tricky to get code to run when a thread exits. This // is cargo-cult magic from http://www.codeproject.com/threads/tls.asp. // This code is for VC++ 7.1 and later; VC++ 6.0 support is possible // but more busy-work -- see the webpage for how to do it. If all // this fails, we could use DllMain instead. The big problem with // DllMain is it doesn't run if this code is statically linked into a // binary (it also doesn't run if the thread is terminated via // TerminateThread, which if we're lucky this routine does). // Force a reference to _tls_used to make the linker create the TLS directory // if it's not already there (that is, even if __declspec(thread) is not used). // Force a reference to p_thread_callback_tcmalloc and p_process_term_tcmalloc // to prevent whole program optimization from discarding the variables. #ifdef _MSC_VER #if defined(_M_IX86) #pragma comment(linker, "/INCLUDE:__tls_used") #pragma comment(linker, "/INCLUDE:_p_thread_callback_tcmalloc") #pragma comment(linker, "/INCLUDE:_p_process_term_tcmalloc") #elif defined(_M_X64) #pragma comment(linker, "/INCLUDE:_tls_used") #pragma comment(linker, "/INCLUDE:p_thread_callback_tcmalloc") #pragma comment(linker, "/INCLUDE:p_process_term_tcmalloc") #endif #endif // When destr_fn eventually runs, it's supposed to take as its // argument the tls-value associated with key that pthread_key_create // creates. (Yeah, it sounds confusing but it's really not.) We // store the destr_fn/key pair in this data structure. Because we // store this in a single var, this implies we can only have one // destr_fn in a program! That's enough in practice. If asserts // trigger because we end up needing more, we'll have to turn this // into an array. struct DestrFnClosure { void (*destr_fn)(void*); pthread_key_t key_for_destr_fn_arg; }; static DestrFnClosure destr_fn_info; // initted to all NULL/0. static int on_process_term(void) { if (destr_fn_info.destr_fn) { void *ptr = TlsGetValue(destr_fn_info.key_for_destr_fn_arg); // This shouldn't be necessary, but in Release mode, Windows // sometimes trashes the pointer in the TLS slot, so we need to // remove the pointer from the TLS slot before the thread dies. TlsSetValue(destr_fn_info.key_for_destr_fn_arg, NULL); if (ptr) // pthread semantics say not to call if ptr is NULL (*destr_fn_info.destr_fn)(ptr); } return 0; } static void NTAPI on_tls_callback(HINSTANCE h, DWORD dwReason, PVOID pv) { if (dwReason == DLL_THREAD_DETACH) { // thread is being destroyed! on_process_term(); } } #ifdef _MSC_VER // extern "C" suppresses C++ name mangling so we know the symbol names // for the linker /INCLUDE:symbol pragmas above. extern "C" { // This tells the linker to run these functions. #pragma data_seg(push, old_seg) #pragma data_seg(".CRT$XLB") void (NTAPI *p_thread_callback_tcmalloc)( HINSTANCE h, DWORD dwReason, PVOID pv) = on_tls_callback; #pragma data_seg(".CRT$XTU") int (*p_process_term_tcmalloc)(void) = on_process_term; #pragma data_seg(pop, old_seg) } // extern "C" #else // #ifdef _MSC_VER [probably msys/mingw] // We have to try the DllMain solution here, because we can't use the // msvc-specific pragmas. BOOL WINAPI DllMain(HINSTANCE h, DWORD dwReason, PVOID pv) { if (dwReason == DLL_THREAD_DETACH) on_tls_callback(h, dwReason, pv); else if (dwReason == DLL_PROCESS_DETACH) on_process_term(); return TRUE; } #endif // #ifdef _MSC_VER extern "C" pthread_key_t PthreadKeyCreate(void (*destr_fn)(void*)) { // Semantics are: we create a new key, and then promise to call // destr_fn with TlsGetValue(key) when the thread is destroyed // (as long as TlsGetValue(key) is not NULL). pthread_key_t key = TlsAlloc(); if (destr_fn) { // register it // If this assert fails, we'll need to support an array of destr_fn_infos assert(destr_fn_info.destr_fn == NULL); destr_fn_info.destr_fn = destr_fn; destr_fn_info.key_for_destr_fn_arg = key; } return key; } // NOTE: this is Win2K and later. For Win98 we could use a CRITICAL_SECTION... extern "C" int perftools_pthread_once(pthread_once_t *once_control, void (*init_routine)(void)) { // Try for a fast path first. Note: this should be an acquire semantics read. // It is on x86 and x64, where Windows runs. if (*once_control != 1) { while (true) { switch (InterlockedCompareExchange(once_control, 2, 0)) { case 0: init_routine(); InterlockedExchange(once_control, 1); return 0; case 1: // The initializer has already been executed return 0; default: // The initializer is being processed by another thread SwitchToThread(); } } } return 0; } // ----------------------------------------------------------------------- // These functions rework existing functions of the same name in the // Google codebase. // A replacement for HeapProfiler::CleanupOldProfiles. void DeleteMatchingFiles(const char* prefix, const char* full_glob) { WIN32_FIND_DATAA found; // that final A is for Ansi (as opposed to Unicode) HANDLE hFind = FindFirstFileA(full_glob, &found); // A is for Ansi if (hFind != INVALID_HANDLE_VALUE) { const int prefix_length = strlen(prefix); do { const char *fname = found.cFileName; if ((strlen(fname) >= prefix_length) && (memcmp(fname, prefix, prefix_length) == 0)) { RAW_VLOG(0, "Removing old heap profile %s\n", fname); // TODO(csilvers): we really need to unlink dirname + fname _unlink(fname); } } while (FindNextFileA(hFind, &found) != FALSE); // A is for Ansi FindClose(hFind); } } gperftools-2.4/src/windows/system-alloc.cc0000644000000000000000000001555512440704174015654 00000000000000// Copyright (c) 2013, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Petr Hosek #ifndef _WIN32 # error You should only be including windows/system-alloc.cc in a windows environment! #endif #include #include #include // std::min #include #include "base/logging.h" #include "base/spinlock.h" #include "internal_logging.h" #include "system-alloc.h" static SpinLock spinlock(SpinLock::LINKER_INITIALIZED); // The current system allocator declaration SysAllocator* sys_alloc = NULL; // Number of bytes taken from system. size_t TCMalloc_SystemTaken = 0; class VirtualSysAllocator : public SysAllocator { public: VirtualSysAllocator() : SysAllocator() { } void* Alloc(size_t size, size_t *actual_size, size_t alignment); }; static char virtual_space[sizeof(VirtualSysAllocator)]; // This is mostly like MmapSysAllocator::Alloc, except it does these weird // munmap's in the middle of the page, which is forbidden in windows. void* VirtualSysAllocator::Alloc(size_t size, size_t *actual_size, size_t alignment) { // Align on the pagesize boundary const int pagesize = getpagesize(); if (alignment < pagesize) alignment = pagesize; size = ((size + alignment - 1) / alignment) * alignment; // Report the total number of bytes the OS actually delivered. This might be // greater than |size| because of alignment concerns. The full size is // necessary so that adjacent spans can be coalesced. // TODO(antonm): proper processing of alignments // in actual_size and decommitting. if (actual_size) { *actual_size = size; } // We currently do not support alignments larger than the pagesize or // alignments that are not multiples of the pagesize after being floored. // If this ability is needed it can be done by the caller (assuming it knows // the page size). assert(alignment <= pagesize); void* result = VirtualAlloc(0, size, MEM_COMMIT|MEM_RESERVE, PAGE_READWRITE); if (result == NULL) return NULL; // If the result is not aligned memory fragmentation will result which can // lead to pathological memory use. assert((reinterpret_cast(result) & (alignment - 1)) == 0); return result; } #ifdef _MSC_VER extern "C" SysAllocator* tc_get_sysalloc_override(SysAllocator *def); extern "C" SysAllocator* tc_get_sysalloc_default(SysAllocator *def) { return def; } #if defined(_M_IX86) #pragma comment(linker, "/alternatename:_tc_get_sysalloc_override=_tc_get_sysalloc_default") #elif defined(_M_X64) #pragma comment(linker, "/alternatename:tc_get_sysalloc_override=tc_get_sysalloc_default") #endif #else // !_MSC_VER extern "C" ATTRIBUTE_NOINLINE SysAllocator* tc_get_sysalloc_override(SysAllocator *def) { return def; } #endif static bool system_alloc_inited = false; void InitSystemAllocators(void) { VirtualSysAllocator *alloc = new (virtual_space) VirtualSysAllocator(); sys_alloc = tc_get_sysalloc_override(alloc); } extern PERFTOOLS_DLL_DECL void* TCMalloc_SystemAlloc(size_t size, size_t *actual_size, size_t alignment) { SpinLockHolder lock_holder(&spinlock); if (!system_alloc_inited) { InitSystemAllocators(); system_alloc_inited = true; } void* result = sys_alloc->Alloc(size, actual_size, alignment); if (result != NULL) { if (actual_size) { TCMalloc_SystemTaken += *actual_size; } else { TCMalloc_SystemTaken += size; } } return result; } extern PERFTOOLS_DLL_DECL bool TCMalloc_SystemRelease(void* start, size_t length) { if (VirtualFree(start, length, MEM_DECOMMIT)) return true; // The decommit may fail if the memory region consists of allocations // from more than one call to VirtualAlloc. In this case, fall back to // using VirtualQuery to retrieve the allocation boundaries and decommit // them each individually. char* ptr = static_cast(start); char* end = ptr + length; MEMORY_BASIC_INFORMATION info; while (ptr < end) { size_t resultSize = VirtualQuery(ptr, &info, sizeof(info)); assert(resultSize == sizeof(info)); size_t decommitSize = std::min(info.RegionSize, end - ptr); BOOL success = VirtualFree(ptr, decommitSize, MEM_DECOMMIT); assert(success == TRUE); ptr += decommitSize; } return true; } extern PERFTOOLS_DLL_DECL void TCMalloc_SystemCommit(void* start, size_t length) { if (VirtualAlloc(start, length, MEM_COMMIT, PAGE_READWRITE) == start) return; // The commit may fail if the memory region consists of allocations // from more than one call to VirtualAlloc. In this case, fall back to // using VirtualQuery to retrieve the allocation boundaries and commit them // each individually. char* ptr = static_cast(start); char* end = ptr + length; MEMORY_BASIC_INFORMATION info; while (ptr < end) { size_t resultSize = VirtualQuery(ptr, &info, sizeof(info)); assert(resultSize == sizeof(info)); size_t commitSize = std::min(info.RegionSize, end - ptr); void* newAddress = VirtualAlloc(ptr, commitSize, MEM_COMMIT, PAGE_READWRITE); assert(newAddress == ptr); ptr += commitSize; } } bool RegisterSystemAllocator(SysAllocator *allocator, int priority) { return false; // we don't allow registration on windows, right now } void DumpSystemAllocatorStats(TCMalloc_Printer* printer) { // We don't dump stats on windows, right now } gperftools-2.4/src/windows/ia32_modrm_map.cc0000644000000000000000000001200412371745612016020 00000000000000/* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * * Table of relevant information about how to decode the ModR/M byte. * Based on information in the IA-32 Intel Architecture * Software Developers Manual Volume 2: Instruction Set Reference. */ #include "mini_disassembler.h" #include "mini_disassembler_types.h" namespace sidestep { const ModrmEntry MiniDisassembler::s_ia16_modrm_map_[] = { // mod == 00 /* r/m == 000 */ { false, false, OS_ZERO }, /* r/m == 001 */ { false, false, OS_ZERO }, /* r/m == 010 */ { false, false, OS_ZERO }, /* r/m == 011 */ { false, false, OS_ZERO }, /* r/m == 100 */ { false, false, OS_ZERO }, /* r/m == 101 */ { false, false, OS_ZERO }, /* r/m == 110 */ { true, false, OS_WORD }, /* r/m == 111 */ { false, false, OS_ZERO }, // mod == 01 /* r/m == 000 */ { true, false, OS_BYTE }, /* r/m == 001 */ { true, false, OS_BYTE }, /* r/m == 010 */ { true, false, OS_BYTE }, /* r/m == 011 */ { true, false, OS_BYTE }, /* r/m == 100 */ { true, false, OS_BYTE }, /* r/m == 101 */ { true, false, OS_BYTE }, /* r/m == 110 */ { true, false, OS_BYTE }, /* r/m == 111 */ { true, false, OS_BYTE }, // mod == 10 /* r/m == 000 */ { true, false, OS_WORD }, /* r/m == 001 */ { true, false, OS_WORD }, /* r/m == 010 */ { true, false, OS_WORD }, /* r/m == 011 */ { true, false, OS_WORD }, /* r/m == 100 */ { true, false, OS_WORD }, /* r/m == 101 */ { true, false, OS_WORD }, /* r/m == 110 */ { true, false, OS_WORD }, /* r/m == 111 */ { true, false, OS_WORD }, // mod == 11 /* r/m == 000 */ { false, false, OS_ZERO }, /* r/m == 001 */ { false, false, OS_ZERO }, /* r/m == 010 */ { false, false, OS_ZERO }, /* r/m == 011 */ { false, false, OS_ZERO }, /* r/m == 100 */ { false, false, OS_ZERO }, /* r/m == 101 */ { false, false, OS_ZERO }, /* r/m == 110 */ { false, false, OS_ZERO }, /* r/m == 111 */ { false, false, OS_ZERO } }; const ModrmEntry MiniDisassembler::s_ia32_modrm_map_[] = { // mod == 00 /* r/m == 000 */ { false, false, OS_ZERO }, /* r/m == 001 */ { false, false, OS_ZERO }, /* r/m == 010 */ { false, false, OS_ZERO }, /* r/m == 011 */ { false, false, OS_ZERO }, /* r/m == 100 */ { false, true, OS_ZERO }, /* r/m == 101 */ { true, false, OS_DOUBLE_WORD }, /* r/m == 110 */ { false, false, OS_ZERO }, /* r/m == 111 */ { false, false, OS_ZERO }, // mod == 01 /* r/m == 000 */ { true, false, OS_BYTE }, /* r/m == 001 */ { true, false, OS_BYTE }, /* r/m == 010 */ { true, false, OS_BYTE }, /* r/m == 011 */ { true, false, OS_BYTE }, /* r/m == 100 */ { true, true, OS_BYTE }, /* r/m == 101 */ { true, false, OS_BYTE }, /* r/m == 110 */ { true, false, OS_BYTE }, /* r/m == 111 */ { true, false, OS_BYTE }, // mod == 10 /* r/m == 000 */ { true, false, OS_DOUBLE_WORD }, /* r/m == 001 */ { true, false, OS_DOUBLE_WORD }, /* r/m == 010 */ { true, false, OS_DOUBLE_WORD }, /* r/m == 011 */ { true, false, OS_DOUBLE_WORD }, /* r/m == 100 */ { true, true, OS_DOUBLE_WORD }, /* r/m == 101 */ { true, false, OS_DOUBLE_WORD }, /* r/m == 110 */ { true, false, OS_DOUBLE_WORD }, /* r/m == 111 */ { true, false, OS_DOUBLE_WORD }, // mod == 11 /* r/m == 000 */ { false, false, OS_ZERO }, /* r/m == 001 */ { false, false, OS_ZERO }, /* r/m == 010 */ { false, false, OS_ZERO }, /* r/m == 011 */ { false, false, OS_ZERO }, /* r/m == 100 */ { false, false, OS_ZERO }, /* r/m == 101 */ { false, false, OS_ZERO }, /* r/m == 110 */ { false, false, OS_ZERO }, /* r/m == 111 */ { false, false, OS_ZERO }, }; }; // namespace sidestep gperftools-2.4/src/windows/ia32_opcode_map.cc0000644000000000000000000033636412372001603016157 00000000000000/* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * * Opcode decoding maps. Based on the IA-32 Intel Architecture * Software Developers Manual Volume 2: Instruction Set Reference. Idea * for how to lay out the tables in memory taken from the implementation * in the Bastard disassembly environment. */ #include "mini_disassembler.h" namespace sidestep { /* * This is the first table to be searched; the first field of each * Opcode in the table is either 0 to indicate you're in the * right table, or an index to the correct table, in the global * map g_pentiumOpcodeMap */ const Opcode s_first_opcode_byte[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF */ { 1, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x10 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x11 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x12 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x13 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x14 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x15 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x16 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x17 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x18 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x19 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1C */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1E */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1F */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x20 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x21 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x22 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x23 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x24 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x25 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x26 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x27 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "daa", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x28 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x29 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2C */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2E */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2F */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "das", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x30 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x31 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x32 */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x33 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x34 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x35 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x36 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x37 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "aaa", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x38 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x39 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3C */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3E */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3F */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "aas", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, #ifdef _M_X64 /* REX Prefixes in 64-bit mode. */ /* 0x40 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x41 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x42 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x43 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x44 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x45 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x46 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x47 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x48 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x49 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4A */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4B */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4C */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4D */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4E */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4F */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, #else /* 0x40 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x41 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x42 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x43 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x44 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x45 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x46 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x47 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x48 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x49 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4A */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4B */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4C */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4E */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4F */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, #endif /* 0x50 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x51 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x52 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x53 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x54 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x55 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x56 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x57 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x58 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x59 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5A */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5B */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5C */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5D */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5E */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5F */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x60 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "pushad", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x61 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "popad", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x62 */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_A, AM_NOT_USED, "bound", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x63 */ { 0, IT_GENERIC, AM_E | OT_W, AM_G | OT_W, AM_NOT_USED, "arpl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x64 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x65 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x66 */ { 0, IT_PREFIX_OPERAND, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x67 */ { 0, IT_PREFIX_ADDRESS, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x68 */ { 0, IT_GENERIC, AM_I | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x69 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_I | OT_V, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6A */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_I | OT_B, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6C */ { 0, IT_GENERIC, AM_Y | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "insb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6D */ { 0, IT_GENERIC, AM_Y | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "insd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6E */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_X | OT_B, AM_NOT_USED, "outsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6F */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_X | OT_V, AM_NOT_USED, "outsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x70 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x71 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x72 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x73 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x74 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x75 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x76 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x77 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "ja", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x78 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "js", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x79 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7A */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7B */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7C */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7D */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7E */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7F */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x80 */ { 2, IT_REFERENCE, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x81 */ { 3, IT_REFERENCE, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x82 */ { 4, IT_REFERENCE, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x83 */ { 5, IT_REFERENCE, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x84 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x85 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x86 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x87 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x88 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x89 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8A */ { 0, IT_GENERIC, AM_G | OT_B, AM_E | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8C */ { 0, IT_GENERIC, AM_E | OT_W, AM_S | OT_W, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8D */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_ADDRESS_MODE_M, AM_NOT_USED, "lea", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8E */ { 0, IT_GENERIC, AM_S | OT_W, AM_E | OT_W, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8F */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x90 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "nop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x91 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x92 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x93 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x94 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x95 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x96 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x97 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "xchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x98 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cwde", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x99 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cdq", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9A */ { 0, IT_JUMP, AM_A | OT_P, AM_NOT_USED, AM_NOT_USED, "callf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9B */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "wait", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9C */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "pushfd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9D */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "popfd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9E */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sahf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9F */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "lahf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA0 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_O | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA1 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_O | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA2 */ { 0, IT_GENERIC, AM_O | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA3 */ { 0, IT_GENERIC, AM_O | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA4 */ { 0, IT_GENERIC, AM_X | OT_B, AM_Y | OT_B, AM_NOT_USED, "movsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA5 */ { 0, IT_GENERIC, AM_X | OT_V, AM_Y | OT_V, AM_NOT_USED, "movsd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA6 */ { 0, IT_GENERIC, AM_X | OT_B, AM_Y | OT_B, AM_NOT_USED, "cmpsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA7 */ { 0, IT_GENERIC, AM_X | OT_V, AM_Y | OT_V, AM_NOT_USED, "cmpsd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA8 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA9 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAA */ { 0, IT_GENERIC, AM_Y | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "stosb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAB */ { 0, IT_GENERIC, AM_Y | OT_V, AM_REGISTER | OT_V, AM_NOT_USED, "stosd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAC */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_X| OT_B, AM_NOT_USED, "lodsb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_X| OT_V, AM_NOT_USED, "lodsd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAE */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_Y | OT_B, AM_NOT_USED, "scasb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAF */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_Y | OT_V, AM_NOT_USED, "scasd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB0 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB1 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB2 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB3 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB4 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB5 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB6 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB7 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, #ifdef _M_X64 /* 0xB8 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB9 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBA */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBB */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBC */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBE */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBF */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V | IOS_64, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, #else /* 0xB8 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB9 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBA */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBB */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBC */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBD */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBE */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBF */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, #endif /* 0xC0 */ { 6, IT_REFERENCE, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC1 */ { 7, IT_REFERENCE, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC2 */ { 0, IT_RETURN, AM_I | OT_W, AM_NOT_USED, AM_NOT_USED, "ret", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC3 */ { 0, IT_RETURN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ret", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC4 */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_P, AM_NOT_USED, "les", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC5 */ { 0, IT_GENERIC, AM_G | OT_V, AM_M | OT_P, AM_NOT_USED, "lds", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC8 */ { 0, IT_GENERIC, AM_I | OT_W, AM_I | OT_B, AM_NOT_USED, "enter", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC9 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "leave", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCA */ { 0, IT_RETURN, AM_I | OT_W, AM_NOT_USED, AM_NOT_USED, "retf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCB */ { 0, IT_RETURN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "retf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCC */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "int3", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCD */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "int", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCE */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "into", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCF */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "iret", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD0 */ { 8, IT_REFERENCE, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD1 */ { 9, IT_REFERENCE, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD2 */ { 10, IT_REFERENCE, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD3 */ { 11, IT_REFERENCE, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD4 */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "aam", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD5 */ { 0, IT_GENERIC, AM_I | OT_B, AM_NOT_USED, AM_NOT_USED, "aad", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD6 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD7 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "xlat", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, // The following 8 lines would be references to the FPU tables, but we currently // do not support the FPU instructions in this disassembler. /* 0xD8 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD9 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xDA */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xDB */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xDC */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xDD */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xDE */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xDF */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE0 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "loopnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE1 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "loopz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE2 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "loop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE3 */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jcxz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE4 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE5 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_I | OT_B, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE6 */ { 0, IT_GENERIC, AM_I | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE7 */ { 0, IT_GENERIC, AM_I | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE8 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "call", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE9 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xEA */ { 0, IT_JUMP, AM_A | OT_P, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xEB */ { 0, IT_JUMP, AM_J | OT_B, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xEC */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_REGISTER | OT_W, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xED */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_REGISTER | OT_W, AM_NOT_USED, "in", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xEE */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_REGISTER | OT_B, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xEF */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_REGISTER | OT_V, AM_NOT_USED, "out", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF0 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "lock:", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF2 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "repne:", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF3 */ { 0, IT_PREFIX, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rep:", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF4 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "hlt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF5 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cmc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF6 */ { 12, IT_REFERENCE, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF7 */ { 13, IT_REFERENCE, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF8 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "clc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF9 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "stc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xFA */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cli", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xFB */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sti", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xFC */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cld", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xFD */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "std", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xFE */ { 14, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xFF */ { 15, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0f[] = { /* 0x0 */ { 16, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 17, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "lar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "lsl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "clts", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "invd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "wbinvd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ud2", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xE */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x10 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "movups", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "movsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "movss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "movupd" } }, /* 0x11 */ { 0, IT_GENERIC, AM_W | OT_PS, AM_V | OT_PS, AM_NOT_USED, "movups", true, /* F2h */ { 0, IT_GENERIC, AM_W | OT_SD, AM_V | OT_SD, AM_NOT_USED, "movsd" }, /* F3h */ { 0, IT_GENERIC, AM_W | OT_SS, AM_V | OT_SS, AM_NOT_USED, "movss" }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_PD, AM_V | OT_PD, AM_NOT_USED, "movupd" } }, /* 0x12 */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movlps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhlps" }, // only one of ... /* F3h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhlps" }, // ...these two is correct, Intel doesn't specify which /* 66h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_S, AM_NOT_USED, "movlpd" } }, /* 0x13 */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movlps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movlpd" } }, /* 0x14 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_Q, AM_NOT_USED, "unpcklps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_Q, AM_NOT_USED, "unpcklpd" } }, /* 0x15 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_Q, AM_NOT_USED, "unpckhps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_Q, AM_NOT_USED, "unpckhpd" } }, /* 0x16 */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movhps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movlhps" }, // only one of... /* F3h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movlhps" }, // ...these two is correct, Intel doesn't specify which /* 66h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movhpd" } }, /* 0x17 */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movhpd" } }, /* 0x18 */ { 18, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x19 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1A */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1B */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1C */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1D */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1E */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1F */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x20 */ { 0, IT_GENERIC, AM_R | OT_D, AM_C | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x21 */ { 0, IT_GENERIC, AM_R | OT_D, AM_D | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x22 */ { 0, IT_GENERIC, AM_C | OT_D, AM_R | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x23 */ { 0, IT_GENERIC, AM_D | OT_D, AM_R | OT_D, AM_NOT_USED, "mov", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x24 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x25 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x26 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x27 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x28 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "movaps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "movapd" } }, /* 0x29 */ { 0, IT_GENERIC, AM_W | OT_PS, AM_V | OT_PS, AM_NOT_USED, "movaps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_PD, AM_V | OT_PD, AM_NOT_USED, "movapd" } }, /* 0x2A */ { 0, IT_GENERIC, AM_V | OT_PS, AM_Q | OT_Q, AM_NOT_USED, "cvtpi2ps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_E | OT_D, AM_NOT_USED, "cvtsi2sd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_E | OT_D, AM_NOT_USED, "cvtsi2ss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_Q | OT_DQ, AM_NOT_USED, "cvtpi2pd" } }, /* 0x2B */ { 0, IT_GENERIC, AM_W | OT_PS, AM_V | OT_PS, AM_NOT_USED, "movntps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_PD, AM_V | OT_PD, AM_NOT_USED, "movntpd" } }, /* 0x2C */ { 0, IT_GENERIC, AM_Q | OT_Q, AM_W | OT_PS, AM_NOT_USED, "cvttps2pi", true, /* F2h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SD, AM_NOT_USED, "cvttsd2si" }, /* F3h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SS, AM_NOT_USED, "cvttss2si" }, /* 66h */ { 0, IT_GENERIC, AM_Q | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvttpd2pi" } }, /* 0x2D */ { 0, IT_GENERIC, AM_Q | OT_Q, AM_W | OT_PS, AM_NOT_USED, "cvtps2pi", true, /* F2h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SD, AM_NOT_USED, "cvtsd2si" }, /* F3h */ { 0, IT_GENERIC, AM_G | OT_D, AM_W | OT_SS, AM_NOT_USED, "cvtss2si" }, /* 66h */ { 0, IT_GENERIC, AM_Q | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvtpd2pi" } }, /* 0x2E */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "ucomiss", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "ucomisd" } }, /* 0x2F */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_SS, AM_NOT_USED, "comiss", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "comisd" } }, /* 0x30 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "wrmsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x31 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rdtsc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x32 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rdmsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x33 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rdpmc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x34 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sysenter", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x35 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "sysexit", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x36 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x37 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x38 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x39 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3A */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3B */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3C */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "movnti", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3D */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3E */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3F */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x40 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x41 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x42 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x43 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x44 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x45 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x46 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x47 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmova", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x48 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovs", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x49 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4A */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4B */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4C */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4D */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4E */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4F */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "cmovg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x50 */ { 0, IT_GENERIC, AM_E | OT_D, AM_V | OT_PS, AM_NOT_USED, "movmskps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_E | OT_D, AM_V | OT_PD, AM_NOT_USED, "movmskpd" } }, /* 0x51 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "sqrtps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "sqrtsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "sqrtss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "sqrtpd" } }, /* 0x52 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "rsqrtps", true, /* F2h */ { 0 }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "rsqrtss" }, /* 66h */ { 0 } }, /* 0x53 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "rcpps", true, /* F2h */ { 0 }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "rcpss" }, /* 66h */ { 0 } }, /* 0x54 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "andps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "andpd" } }, /* 0x55 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "andnps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "andnpd" } }, /* 0x56 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "orps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "orpd" } }, /* 0x57 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "xorps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "xorpd" } }, /* 0x58 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "addps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "addsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "addss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "addpd" } }, /* 0x59 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "mulps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "mulsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "mulss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "mulpd" } }, /* 0x5A */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PS, AM_NOT_USED, "cvtps2pd", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "cvtsd2ss" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "cvtss2sd" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PD, AM_NOT_USED, "cvtpd2ps" } }, /* 0x5B */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_DQ, AM_NOT_USED, "cvtdq2ps", true, /* F2h */ { 0 }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PS, AM_NOT_USED, "cvttps2dq" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PS, AM_NOT_USED, "cvtps2dq" } }, /* 0x5C */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "subps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "subsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "subss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "subpd" } }, /* 0x5D */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "minps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "minsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "minss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "minpd" } }, /* 0x5E */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "divps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "divsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "divss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "divpd" } }, /* 0x5F */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_NOT_USED, "maxps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_NOT_USED, "maxsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_NOT_USED, "maxss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_NOT_USED, "maxpd" } }, /* 0x60 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpcklbw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklbw" } }, /* 0x61 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpcklwd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklwd" } }, /* 0x62 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckldq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpckldq" } }, /* 0x63 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "packsswb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "packsswb" } }, /* 0x64 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "pcmpgtb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpgtb" } }, /* 0x65 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "pcmpgtw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpgtw" } }, /* 0x66 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "pcmpgtd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpgtd" } }, /* 0x67 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "packuswb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "packuswb" } }, /* 0x68 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckhbw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "punpckhbw" } }, /* 0x69 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckhwd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "punpckhwd" } }, /* 0x6A */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "punpckhdq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "punpckhdq" } }, /* 0x6B */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "packssdw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_Q | OT_DQ, AM_NOT_USED, "packssdw" } }, /* 0x6C */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "not used without prefix", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklqdq" } }, /* 0x6D */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "not used without prefix", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "punpcklqdq" } }, /* 0x6E */ { 0, IT_GENERIC, AM_P | OT_D, AM_E | OT_D, AM_NOT_USED, "movd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_E | OT_D, AM_NOT_USED, "movd" } }, /* 0x6F */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_D, AM_NOT_USED, "movq", true, /* F2h */ { 0 }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "movdqu" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "movdqa" } }, /* 0x70 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_I | OT_B, "pshuf", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_I | OT_B, "pshuflw" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_I | OT_B, "pshufhw" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_I | OT_B, "pshufd" } }, /* 0x71 */ { 19, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x72 */ { 20, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x73 */ { 21, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x74 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pcmpeqb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpeqb" } }, /* 0x75 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pcmpeqw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpeqw" } }, /* 0x76 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pcmpeqd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pcmpeqd" } }, /* 0x77 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "emms", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, // The following six opcodes are escapes into the MMX stuff, which this disassembler does not support. /* 0x78 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x79 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7A */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7B */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7C */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7D */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7E */ { 0, IT_GENERIC, AM_E | OT_D, AM_P | OT_D, AM_NOT_USED, "movd", true, /* F2h */ { 0 }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movq" }, /* 66h */ { 0, IT_GENERIC, AM_E | OT_D, AM_V | OT_DQ, AM_NOT_USED, "movd" } }, /* 0x7F */ { 0, IT_GENERIC, AM_Q | OT_Q, AM_P | OT_Q, AM_NOT_USED, "movq", true, /* F2h */ { 0 }, /* F3h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_V | OT_DQ, AM_NOT_USED, "movdqu" }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_V | OT_DQ, AM_NOT_USED, "movdqa" } }, /* 0x80 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x81 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x82 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x83 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x84 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x85 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x86 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x87 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "ja", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x88 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "js", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x89 */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8A */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8B */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8C */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8D */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8E */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x8F */ { 0, IT_JUMP, AM_J | OT_V, AM_NOT_USED, AM_NOT_USED, "jg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x90 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "seto", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x91 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setno", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x92 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x93 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setnc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x94 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x95 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setnz", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x96 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setbe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x97 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "seta", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x98 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "sets", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x99 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setns", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9A */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setpe", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9B */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setpo", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9C */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9D */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setge", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9E */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setle", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x9F */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "setg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA0 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA1 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA2 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "cpuid", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "bt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B, "shld", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B | AM_REGISTER, "shld", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA6 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA7 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA8 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xA9 */ { 0, IT_GENERIC, AM_REGISTER | OT_W, AM_NOT_USED, AM_NOT_USED, "pop", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAA */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "rsm", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAB */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "bts", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAC */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B, "shrd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAD */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_I | OT_B | AM_REGISTER, "shrd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAE */ { 22, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xAF */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "cmpxchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "cmpxchg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB2 */ { 0, IT_GENERIC, AM_M | OT_P, AM_NOT_USED, AM_NOT_USED, "lss", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "btr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB4 */ { 0, IT_GENERIC, AM_M | OT_P, AM_NOT_USED, AM_NOT_USED, "lfs", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB5 */ { 0, IT_GENERIC, AM_M | OT_P, AM_NOT_USED, AM_NOT_USED, "lgs", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB6 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_B, AM_NOT_USED, "movzx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB7 */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "movzx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB8 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xB9 */ { 0, IT_UNKNOWN, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ud1", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBA */ { 23, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBB */ { 0, IT_GENERIC, AM_E | OT_V, AM_G | OT_V, AM_NOT_USED, "btc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBC */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "bsf", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBD */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_V, AM_NOT_USED, "bsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBE */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_B, AM_NOT_USED, "movsx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xBF */ { 0, IT_GENERIC, AM_G | OT_V, AM_E | OT_W, AM_NOT_USED, "movsx", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_G | OT_B, AM_NOT_USED, "xadd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "xadd", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC2 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_I | OT_B, "cmpps", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_SD, AM_W | OT_SD, AM_I | OT_B, "cmpsd" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_SS, AM_W | OT_SS, AM_I | OT_B, "cmpss" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_I | OT_B, "cmppd" } }, /* 0xC3 */ { 0, IT_GENERIC, AM_E | OT_D, AM_G | OT_D, AM_NOT_USED, "movnti", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_E | OT_D, AM_I | OT_B, "pinsrw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_E | OT_D, AM_I | OT_B, "pinsrw" } }, /* 0xC5 */ { 0, IT_GENERIC, AM_G | OT_D, AM_P | OT_Q, AM_I | OT_B, "pextrw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_G | OT_D, AM_V | OT_DQ, AM_I | OT_B, "pextrw" } }, /* 0xC6 */ { 0, IT_GENERIC, AM_V | OT_PS, AM_W | OT_PS, AM_I | OT_B, "shufps", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_PD, AM_I | OT_B, "shufpd" } }, /* 0xC7 */ { 24, IT_REFERENCE, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC8 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xC9 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCA */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCB */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCC */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCD */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCE */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xCF */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "bswap", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xD1 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrlw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrlw" } }, /* 0xD2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrld", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrld" } }, /* 0xD3 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrlq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrlq" } }, /* 0xD4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddq" } }, /* 0xD5 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmullw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmullw" } }, /* 0xD6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "unused without prefix", true, /* F2h */ { 0, IT_GENERIC, AM_P | OT_Q, AM_W | OT_Q, AM_NOT_USED, "movdq2q" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_Q | OT_Q, AM_NOT_USED, "movq2dq" }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movq" } }, /* 0xD7 */ { 0, IT_GENERIC, AM_G | OT_D, AM_P | OT_Q, AM_NOT_USED, "pmovmskb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_G | OT_D, AM_V | OT_DQ, AM_NOT_USED, "pmovmskb" } }, /* 0xD8 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubusb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubusb" } }, /* 0xD9 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubusw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubusw" } }, /* 0xDA */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pminub", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pminub" } }, /* 0xDB */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pand", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pand" } }, /* 0xDC */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddusb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddusb" } }, /* 0xDD */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddusw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddusw" } }, /* 0xDE */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmaxub", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmaxub" } }, /* 0xDF */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pandn", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pandn" } }, /* 0xE0 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pavgb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pavgb" } }, /* 0xE1 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psraw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrqw" } }, /* 0xE2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psrad", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psrad" } }, /* 0xE3 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pavgw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pavgw" } }, /* 0xE4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmulhuw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmulhuw" } }, /* 0xE5 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmulhuw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmulhw" } }, /* 0xE6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "not used without prefix", true, /* F2h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvtpd2dq" }, /* F3h */ { 0, IT_GENERIC, AM_V | OT_PD, AM_W | OT_DQ, AM_NOT_USED, "cvtdq2pd" }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_PD, AM_NOT_USED, "cvttpd2dq" } }, /* 0xE7 */ { 0, IT_GENERIC, AM_W | OT_Q, AM_V | OT_Q, AM_NOT_USED, "movntq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_V | OT_DQ, AM_NOT_USED, "movntdq" } }, /* 0xE8 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubsb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubsb" } }, /* 0xE9 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubsw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubsw" } }, /* 0xEA */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pminsw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pminsw" } }, /* 0xEB */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "por", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "por" } }, /* 0xEC */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddsb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddsb" } }, /* 0xED */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddsw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddsw" } }, /* 0xEE */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmaxsw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmaxsw" } }, /* 0xEF */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pxor", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pxor" } }, /* 0xF0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0xF1 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psllw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psllw" } }, /* 0xF2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pslld", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pslld" } }, /* 0xF3 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psllq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psllq" } }, /* 0xF4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmuludq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmuludq" } }, /* 0xF5 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "pmaddwd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "pmaddwd" } }, /* 0xF6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psadbw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psadbw" } }, /* 0xF7 */ { 0, IT_GENERIC, AM_P | OT_PI, AM_Q | OT_PI, AM_NOT_USED, "maskmovq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "maskmovdqu" } }, /* 0xF8 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubb" } }, /* 0xF9 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubw" } }, /* 0xFA */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubd" } }, /* 0xFB */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "psubq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "psubq" } }, /* 0xFC */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddb", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddb" } }, /* 0xFD */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddw" } }, /* 0xFE */ { 0, IT_GENERIC, AM_P | OT_Q, AM_Q | OT_Q, AM_NOT_USED, "paddd", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_V | OT_DQ, AM_W | OT_DQ, AM_NOT_USED, "paddd" } }, /* 0xFF */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0f00[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "sldt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "str", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "lldt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "ltr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "verr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "verw", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0f01[] = { /* 0x0 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "sgdt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "sidt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "lgdt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_M | OT_S, AM_NOT_USED, AM_NOT_USED, "lidt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "smsw", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_W, AM_NOT_USED, AM_NOT_USED, "lmsw", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_M | OT_B, AM_NOT_USED, AM_NOT_USED, "invlpg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0f18[] = { /* 0x0 */ { 0, IT_GENERIC, AM_M | OT_ADDRESS_MODE_M, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_REGISTER | OT_D, AM_NOT_USED, AM_NOT_USED, "prefetch", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0f71[] = { /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrlw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrlw" } }, /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psraw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psraw" } }, /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psllw", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_P | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psllw" } }, /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0f72[] = { /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrld", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrld" } }, /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrad", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrad" } }, /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "pslld", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "pslld" } }, /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0f73[] = { /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psrlq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psrlq" } }, /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_P | OT_Q, AM_I | OT_B, AM_NOT_USED, "psllq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "psllq" } }, /* 0x7 */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "pslldq", true, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0, IT_GENERIC, AM_W | OT_DQ, AM_I | OT_B, AM_NOT_USED, "pslldq" } }, }; const Opcode s_opcode_byte_after_0fae[] = { /* 0x0 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "fxsave", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "fxrstor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "ldmxcsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "stmxcsr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "lfence", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "mfence", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, "clflush/sfence", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, }; const Opcode s_opcode_byte_after_0fba[] = { /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "bt", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "bts", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "btr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "btc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_0fc7[] = { /* 0x0 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_M | OT_Q, AM_NOT_USED, AM_NOT_USED, "cmpxch8b", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_80[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_81[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_82[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_83[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "add", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "or", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "adc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sbb", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "and", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sub", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "xor", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "cmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_c0[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_c1[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_d0[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_IMPLICIT, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_d1[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_IMPLICIT, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_d2[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_B, AM_REGISTER | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_d3[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "rol", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "ror", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "rcl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "rcr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "shl", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "shr", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "sal", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_E | OT_V, AM_REGISTER | OT_B, AM_NOT_USED, "sar", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_f6[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_I | OT_B, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "not", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "neg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, OT_B | AM_REGISTER, AM_E | OT_B, AM_NOT_USED, "mul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, OT_B | AM_REGISTER, AM_E | OT_B, AM_NOT_USED, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_E | OT_B, AM_NOT_USED, "div", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_REGISTER | OT_B, AM_E | OT_B, AM_NOT_USED, "idiv", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_f7[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_I | OT_V, AM_NOT_USED, "test", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "not", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "neg", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "mul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "imul", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "div", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_GENERIC, AM_REGISTER | OT_V, AM_E | OT_V, AM_NOT_USED, "idiv", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_fe[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_B, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; const Opcode s_opcode_byte_after_ff[] = { /* 0x0 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "inc", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x1 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "dec", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x2 */ { 0, IT_JUMP, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "call", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x3 */ { 0, IT_JUMP, AM_E | OT_P, AM_NOT_USED, AM_NOT_USED, "call", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x4 */ { 0, IT_JUMP, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x5 */ { 0, IT_JUMP, AM_E | OT_P, AM_NOT_USED, AM_NOT_USED, "jmp", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x6 */ { 0, IT_GENERIC, AM_E | OT_V, AM_NOT_USED, AM_NOT_USED, "push", false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } }, /* 0x7 */ { 0, IT_UNUSED, AM_NOT_USED, AM_NOT_USED, AM_NOT_USED, 0, false, /* F2h */ { 0 }, /* F3h */ { 0 }, /* 66h */ { 0 } } }; /* * A table of all the other tables, containing some extra information, e.g. * how to mask out the byte we're looking at. */ const OpcodeTable MiniDisassembler::s_ia32_opcode_map_[]={ // One-byte opcodes and jumps to larger /* 0 */ {s_first_opcode_byte, 0, 0xff, 0, 0xff}, // Two-byte opcodes (second byte) /* 1 */ {s_opcode_byte_after_0f, 0, 0xff, 0, 0xff}, // Start of tables for opcodes using ModR/M bits as extension /* 2 */ {s_opcode_byte_after_80, 3, 0x07, 0, 0x07}, /* 3 */ {s_opcode_byte_after_81, 3, 0x07, 0, 0x07}, /* 4 */ {s_opcode_byte_after_82, 3, 0x07, 0, 0x07}, /* 5 */ {s_opcode_byte_after_83, 3, 0x07, 0, 0x07}, /* 6 */ {s_opcode_byte_after_c0, 3, 0x07, 0, 0x07}, /* 7 */ {s_opcode_byte_after_c1, 3, 0x07, 0, 0x07}, /* 8 */ {s_opcode_byte_after_d0, 3, 0x07, 0, 0x07}, /* 9 */ {s_opcode_byte_after_d1, 3, 0x07, 0, 0x07}, /* 10 */ {s_opcode_byte_after_d2, 3, 0x07, 0, 0x07}, /* 11 */ {s_opcode_byte_after_d3, 3, 0x07, 0, 0x07}, /* 12 */ {s_opcode_byte_after_f6, 3, 0x07, 0, 0x07}, /* 13 */ {s_opcode_byte_after_f7, 3, 0x07, 0, 0x07}, /* 14 */ {s_opcode_byte_after_fe, 3, 0x07, 0, 0x01}, /* 15 */ {s_opcode_byte_after_ff, 3, 0x07, 0, 0x07}, /* 16 */ {s_opcode_byte_after_0f00, 3, 0x07, 0, 0x07}, /* 17 */ {s_opcode_byte_after_0f01, 3, 0x07, 0, 0x07}, /* 18 */ {s_opcode_byte_after_0f18, 3, 0x07, 0, 0x07}, /* 19 */ {s_opcode_byte_after_0f71, 3, 0x07, 0, 0x07}, /* 20 */ {s_opcode_byte_after_0f72, 3, 0x07, 0, 0x07}, /* 21 */ {s_opcode_byte_after_0f73, 3, 0x07, 0, 0x07}, /* 22 */ {s_opcode_byte_after_0fae, 3, 0x07, 0, 0x07}, /* 23 */ {s_opcode_byte_after_0fba, 3, 0x07, 0, 0x07}, /* 24 */ {s_opcode_byte_after_0fc7, 3, 0x07, 0, 0x01} }; }; // namespace sidestep gperftools-2.4/src/windows/mini_disassembler.cc0000644000000000000000000003726612440704174016734 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * * Implementation of MiniDisassembler. */ #include "mini_disassembler.h" namespace sidestep { MiniDisassembler::MiniDisassembler(bool operand_default_is_32_bits, bool address_default_is_32_bits) : operand_default_is_32_bits_(operand_default_is_32_bits), address_default_is_32_bits_(address_default_is_32_bits) { Initialize(); } MiniDisassembler::MiniDisassembler() : operand_default_is_32_bits_(true), address_default_is_32_bits_(true) { Initialize(); } InstructionType MiniDisassembler::Disassemble( unsigned char* start_byte, unsigned int& instruction_bytes) { // Clean up any state from previous invocations. Initialize(); // Start by processing any prefixes. unsigned char* current_byte = start_byte; unsigned int size = 0; InstructionType instruction_type = ProcessPrefixes(current_byte, size); if (IT_UNKNOWN == instruction_type) return instruction_type; current_byte += size; size = 0; // Invariant: We have stripped all prefixes, and the operand_is_32_bits_ // and address_is_32_bits_ flags are correctly set. instruction_type = ProcessOpcode(current_byte, 0, size); // Check for error processing instruction if ((IT_UNKNOWN == instruction_type_) || (IT_UNUSED == instruction_type_)) { return IT_UNKNOWN; } current_byte += size; // Invariant: operand_bytes_ indicates the total size of operands // specified by the opcode and/or ModR/M byte and/or SIB byte. // pCurrentByte points to the first byte after the ModR/M byte, or after // the SIB byte if it is present (i.e. the first byte of any operands // encoded in the instruction). // We get the total length of any prefixes, the opcode, and the ModR/M and // SIB bytes if present, by taking the difference of the original starting // address and the current byte (which points to the first byte of the // operands if present, or to the first byte of the next instruction if // they are not). Adding the count of bytes in the operands encoded in // the instruction gives us the full length of the instruction in bytes. instruction_bytes += operand_bytes_ + (current_byte - start_byte); // Return the instruction type, which was set by ProcessOpcode(). return instruction_type_; } void MiniDisassembler::Initialize() { operand_is_32_bits_ = operand_default_is_32_bits_; address_is_32_bits_ = address_default_is_32_bits_; #ifdef _M_X64 operand_default_support_64_bits_ = true; #else operand_default_support_64_bits_ = false; #endif operand_is_64_bits_ = false; operand_bytes_ = 0; have_modrm_ = false; should_decode_modrm_ = false; instruction_type_ = IT_UNKNOWN; got_f2_prefix_ = false; got_f3_prefix_ = false; got_66_prefix_ = false; } InstructionType MiniDisassembler::ProcessPrefixes(unsigned char* start_byte, unsigned int& size) { InstructionType instruction_type = IT_GENERIC; const Opcode& opcode = s_ia32_opcode_map_[0].table_[*start_byte]; switch (opcode.type_) { case IT_PREFIX_ADDRESS: address_is_32_bits_ = !address_default_is_32_bits_; goto nochangeoperand; case IT_PREFIX_OPERAND: operand_is_32_bits_ = !operand_default_is_32_bits_; nochangeoperand: case IT_PREFIX: if (0xF2 == (*start_byte)) got_f2_prefix_ = true; else if (0xF3 == (*start_byte)) got_f3_prefix_ = true; else if (0x66 == (*start_byte)) got_66_prefix_ = true; else if (operand_default_support_64_bits_ && (*start_byte) & 0x48) operand_is_64_bits_ = true; instruction_type = opcode.type_; size ++; // we got a prefix, so add one and check next byte ProcessPrefixes(start_byte + 1, size); default: break; // not a prefix byte } return instruction_type; } InstructionType MiniDisassembler::ProcessOpcode(unsigned char* start_byte, unsigned int table_index, unsigned int& size) { const OpcodeTable& table = s_ia32_opcode_map_[table_index]; // Get our table unsigned char current_byte = (*start_byte) >> table.shift_; current_byte = current_byte & table.mask_; // Mask out the bits we will use // Check whether the byte we have is inside the table we have. if (current_byte < table.min_lim_ || current_byte > table.max_lim_) { instruction_type_ = IT_UNKNOWN; return instruction_type_; } const Opcode& opcode = table.table_[current_byte]; if (IT_UNUSED == opcode.type_) { // This instruction is not used by the IA-32 ISA, so we indicate // this to the user. Probably means that we were pointed to // a byte in memory that was not the start of an instruction. instruction_type_ = IT_UNUSED; return instruction_type_; } else if (IT_REFERENCE == opcode.type_) { // We are looking at an opcode that has more bytes (or is continued // in the ModR/M byte). Recursively find the opcode definition in // the table for the opcode's next byte. size++; ProcessOpcode(start_byte + 1, opcode.table_index_, size); return instruction_type_; } const SpecificOpcode* specific_opcode = (SpecificOpcode*)&opcode; if (opcode.is_prefix_dependent_) { if (got_f2_prefix_ && opcode.opcode_if_f2_prefix_.mnemonic_ != 0) { specific_opcode = &opcode.opcode_if_f2_prefix_; } else if (got_f3_prefix_ && opcode.opcode_if_f3_prefix_.mnemonic_ != 0) { specific_opcode = &opcode.opcode_if_f3_prefix_; } else if (got_66_prefix_ && opcode.opcode_if_66_prefix_.mnemonic_ != 0) { specific_opcode = &opcode.opcode_if_66_prefix_; } } // Inv: The opcode type is known. instruction_type_ = specific_opcode->type_; // Let's process the operand types to see if we have any immediate // operands, and/or a ModR/M byte. ProcessOperand(specific_opcode->flag_dest_); ProcessOperand(specific_opcode->flag_source_); ProcessOperand(specific_opcode->flag_aux_); // Inv: We have processed the opcode and incremented operand_bytes_ // by the number of bytes of any operands specified by the opcode // that are stored in the instruction (not registers etc.). Now // we need to return the total number of bytes for the opcode and // for the ModR/M or SIB bytes if they are present. if (table.mask_ != 0xff) { if (have_modrm_) { // we're looking at a ModR/M byte so we're not going to // count that into the opcode size ProcessModrm(start_byte, size); return IT_GENERIC; } else { // need to count the ModR/M byte even if it's just being // used for opcode extension size++; return IT_GENERIC; } } else { if (have_modrm_) { // The ModR/M byte is the next byte. size++; ProcessModrm(start_byte + 1, size); return IT_GENERIC; } else { size++; return IT_GENERIC; } } } bool MiniDisassembler::ProcessOperand(int flag_operand) { bool succeeded = true; if (AM_NOT_USED == flag_operand) return succeeded; // Decide what to do based on the addressing mode. switch (flag_operand & AM_MASK) { // No ModR/M byte indicated by these addressing modes, and no // additional (e.g. immediate) parameters. case AM_A: // Direct address case AM_F: // EFLAGS register case AM_X: // Memory addressed by the DS:SI register pair case AM_Y: // Memory addressed by the ES:DI register pair case AM_IMPLICIT: // Parameter is implicit, occupies no space in // instruction break; // There is a ModR/M byte but it does not necessarily need // to be decoded. case AM_C: // reg field of ModR/M selects a control register case AM_D: // reg field of ModR/M selects a debug register case AM_G: // reg field of ModR/M selects a general register case AM_P: // reg field of ModR/M selects an MMX register case AM_R: // mod field of ModR/M may refer only to a general register case AM_S: // reg field of ModR/M selects a segment register case AM_T: // reg field of ModR/M selects a test register case AM_V: // reg field of ModR/M selects a 128-bit XMM register have_modrm_ = true; break; // In these addressing modes, there is a ModR/M byte and it needs to be // decoded. No other (e.g. immediate) params than indicated in ModR/M. case AM_E: // Operand is either a general-purpose register or memory, // specified by ModR/M byte case AM_M: // ModR/M byte will refer only to memory case AM_Q: // Operand is either an MMX register or memory (complex // evaluation), specified by ModR/M byte case AM_W: // Operand is either a 128-bit XMM register or memory (complex // eval), specified by ModR/M byte have_modrm_ = true; should_decode_modrm_ = true; break; // These addressing modes specify an immediate or an offset value // directly, so we need to look at the operand type to see how many // bytes. case AM_I: // Immediate data. case AM_J: // Jump to offset. case AM_O: // Operand is at offset. switch (flag_operand & OT_MASK) { case OT_B: // Byte regardless of operand-size attribute. operand_bytes_ += OS_BYTE; break; case OT_C: // Byte or word, depending on operand-size attribute. if (operand_is_32_bits_) operand_bytes_ += OS_WORD; else operand_bytes_ += OS_BYTE; break; case OT_D: // Doubleword, regardless of operand-size attribute. operand_bytes_ += OS_DOUBLE_WORD; break; case OT_DQ: // Double-quadword, regardless of operand-size attribute. operand_bytes_ += OS_DOUBLE_QUAD_WORD; break; case OT_P: // 32-bit or 48-bit pointer, depending on operand-size // attribute. if (operand_is_32_bits_) operand_bytes_ += OS_48_BIT_POINTER; else operand_bytes_ += OS_32_BIT_POINTER; break; case OT_PS: // 128-bit packed single-precision floating-point data. operand_bytes_ += OS_128_BIT_PACKED_SINGLE_PRECISION_FLOATING; break; case OT_Q: // Quadword, regardless of operand-size attribute. operand_bytes_ += OS_QUAD_WORD; break; case OT_S: // 6-byte pseudo-descriptor. operand_bytes_ += OS_PSEUDO_DESCRIPTOR; break; case OT_SD: // Scalar Double-Precision Floating-Point Value case OT_PD: // Unaligned packed double-precision floating point value operand_bytes_ += OS_DOUBLE_PRECISION_FLOATING; break; case OT_SS: // Scalar element of a 128-bit packed single-precision // floating data. // We simply return enItUnknown since we don't have to support // floating point succeeded = false; break; case OT_V: // Word, doubleword or quadword, depending on operand-size // attribute. if (operand_is_64_bits_ && flag_operand & AM_I && flag_operand & IOS_64) operand_bytes_ += OS_QUAD_WORD; else if (operand_is_32_bits_) operand_bytes_ += OS_DOUBLE_WORD; else operand_bytes_ += OS_WORD; break; case OT_W: // Word, regardless of operand-size attribute. operand_bytes_ += OS_WORD; break; // Can safely ignore these. case OT_A: // Two one-word operands in memory or two double-word // operands in memory case OT_PI: // Quadword MMX technology register (e.g. mm0) case OT_SI: // Doubleword integer register (e.g., eax) break; default: break; } break; default: break; } return succeeded; } bool MiniDisassembler::ProcessModrm(unsigned char* start_byte, unsigned int& size) { // If we don't need to decode, we just return the size of the ModR/M // byte (there is never a SIB byte in this case). if (!should_decode_modrm_) { size++; return true; } // We never care about the reg field, only the combination of the mod // and r/m fields, so let's start by packing those fields together into // 5 bits. unsigned char modrm = (*start_byte); unsigned char mod = modrm & 0xC0; // mask out top two bits to get mod field modrm = modrm & 0x07; // mask out bottom 3 bits to get r/m field mod = mod >> 3; // shift the mod field to the right place modrm = mod | modrm; // combine the r/m and mod fields as discussed mod = mod >> 3; // shift the mod field to bits 2..0 // Invariant: modrm contains the mod field in bits 4..3 and the r/m field // in bits 2..0, and mod contains the mod field in bits 2..0 const ModrmEntry* modrm_entry = 0; if (address_is_32_bits_) modrm_entry = &s_ia32_modrm_map_[modrm]; else modrm_entry = &s_ia16_modrm_map_[modrm]; // Invariant: modrm_entry points to information that we need to decode // the ModR/M byte. // Add to the count of operand bytes, if the ModR/M byte indicates // that some operands are encoded in the instruction. if (modrm_entry->is_encoded_in_instruction_) operand_bytes_ += modrm_entry->operand_size_; // Process the SIB byte if necessary, and return the count // of ModR/M and SIB bytes. if (modrm_entry->use_sib_byte_) { size++; return ProcessSib(start_byte + 1, mod, size); } else { size++; return true; } } bool MiniDisassembler::ProcessSib(unsigned char* start_byte, unsigned char mod, unsigned int& size) { // get the mod field from the 2..0 bits of the SIB byte unsigned char sib_base = (*start_byte) & 0x07; if (0x05 == sib_base) { switch (mod) { case 0x00: // mod == 00 case 0x02: // mod == 10 operand_bytes_ += OS_DOUBLE_WORD; break; case 0x01: // mod == 01 operand_bytes_ += OS_BYTE; break; case 0x03: // mod == 11 // According to the IA-32 docs, there does not seem to be a disp // value for this value of mod default: break; } } size++; return true; } }; // namespace sidestep gperftools-2.4/src/windows/patch_functions.cc0000644000000000000000000013227312440704174016424 00000000000000// Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Author: Craig Silverstein // // The main purpose of this file is to patch the libc allocation // routines (malloc and friends, but also _msize and other // windows-specific libc-style routines). However, we also patch // windows routines to do accounting. We do better at the former than // the latter. Here are some comments from Paul Pluzhnikov about what // it might take to do a really good job patching windows routines to // keep track of memory usage: // // "You should intercept at least the following: // HeapCreate HeapDestroy HeapAlloc HeapReAlloc HeapFree // RtlCreateHeap RtlDestroyHeap RtlAllocateHeap RtlFreeHeap // malloc calloc realloc free // malloc_dbg calloc_dbg realloc_dbg free_dbg // Some of these call the other ones (but not always), sometimes // recursively (i.e. HeapCreate may call HeapAlloc on a different // heap, IIRC)." // // Since Paul didn't mention VirtualAllocEx, he may not have even been // considering all the mmap-like functions that windows has (or he may // just be ignoring it because he's seen we already patch it). Of the // above, we do not patch the *_dbg functions, and of the windows // functions, we only patch HeapAlloc and HeapFree. // // The *_dbg functions come into play with /MDd, /MTd, and /MLd, // probably. It may be ok to just turn off tcmalloc in those cases -- // if the user wants the windows debug malloc, they probably don't // want tcmalloc! We should also test with all of /MD, /MT, and /ML, // which we're not currently doing. // TODO(csilvers): try to do better here? Paul does conclude: // "Keeping track of all of this was a nightmare." #ifndef _WIN32 # error You should only be including windows/patch_functions.cc in a windows environment! #endif #include #ifdef WIN32_OVERRIDE_ALLOCATORS #error This file is intended for patching allocators - use override_functions.cc instead. #endif // We use psapi. Non-MSVC systems will have to link this in themselves. #ifdef _MSC_VER #pragma comment(lib, "Psapi.lib") #endif // Make sure we always use the 'old' names of the psapi functions. #ifndef PSAPI_VERSION #define PSAPI_VERSION 1 #endif #include #include #include // for _msize and _expand #include // for EnumProcessModules, GetModuleInformation, etc. #include #include #include #include #include "base/spinlock.h" #include "gperftools/malloc_hook.h" #include "malloc_hook-inl.h" #include "preamble_patcher.h" // The maximum number of modules we allow to be in one executable const int kMaxModules = 8182; // These are hard-coded, unfortunately. :-( They are also probably // compiler specific. See get_mangled_names.cc, in this directory, // for instructions on how to update these names for your compiler. const char kMangledNew[] = "??2@YAPAXI@Z"; const char kMangledNewArray[] = "??_U@YAPAXI@Z"; const char kMangledDelete[] = "??3@YAXPAX@Z"; const char kMangledDeleteArray[] = "??_V@YAXPAX@Z"; const char kMangledNewNothrow[] = "??2@YAPAXIABUnothrow_t@std@@@Z"; const char kMangledNewArrayNothrow[] = "??_U@YAPAXIABUnothrow_t@std@@@Z"; const char kMangledDeleteNothrow[] = "??3@YAXPAXABUnothrow_t@std@@@Z"; const char kMangledDeleteArrayNothrow[] = "??_V@YAXPAXABUnothrow_t@std@@@Z"; // This is an unused but exported symbol that we can use to tell the // MSVC linker to bring in libtcmalloc, via the /INCLUDE linker flag. // Without this, the linker will likely decide that libtcmalloc.dll // doesn't add anything to the executable (since it does all its work // through patching, which the linker can't see), and ignore it // entirely. (The name 'tcmalloc' is already reserved for a // namespace. I'd rather export a variable named "_tcmalloc", but I // couldn't figure out how to get that to work. This function exports // the symbol "__tcmalloc".) extern "C" PERFTOOLS_DLL_DECL void _tcmalloc(); void _tcmalloc() { } // This is the version needed for windows x64, which has a different // decoration scheme which doesn't auto-add a leading underscore. extern "C" PERFTOOLS_DLL_DECL void __tcmalloc(); void __tcmalloc() { } namespace { // most everything here is in an unnamed namespace typedef void (*GenericFnPtr)(); using sidestep::PreamblePatcher; struct ModuleEntryCopy; // defined below // These functions are how we override the memory allocation // functions, just like tcmalloc.cc and malloc_hook.cc do. // This is information about the routines we're patching, for a given // module that implements libc memory routines. A single executable // can have several libc implementations running about (in different // .dll's), and we need to patch/unpatch them all. This defines // everything except the new functions we're patching in, which // are defined in LibcFunctions, below. class LibcInfo { public: LibcInfo() { memset(this, 0, sizeof(*this)); // easiest way to initialize the array } bool patched() const { return is_valid(); } void set_is_valid(bool b) { is_valid_ = b; } // According to http://msdn.microsoft.com/en-us/library/ms684229(VS.85).aspx: // "The load address of a module (lpBaseOfDll) is the same as the HMODULE // value." HMODULE hmodule() const { return reinterpret_cast(const_cast(module_base_address_)); } // Populates all the windows_fn_[] vars based on our module info. // Returns false if windows_fn_ is all NULL's, because there's // nothing to patch. Also populates the rest of the module_entry // info, such as the module's name. bool PopulateWindowsFn(const ModuleEntryCopy& module_entry); protected: void CopyFrom(const LibcInfo& that) { if (this == &that) return; this->is_valid_ = that.is_valid_; memcpy(this->windows_fn_, that.windows_fn_, sizeof(windows_fn_)); this->module_base_address_ = that.module_base_address_; this->module_base_size_ = that.module_base_size_; } enum { kMalloc, kFree, kRealloc, kCalloc, kNew, kNewArray, kDelete, kDeleteArray, kNewNothrow, kNewArrayNothrow, kDeleteNothrow, kDeleteArrayNothrow, // These are windows-only functions from malloc.h k_Msize, k_Expand, // A MS CRT "internal" function, implemented using _calloc_impl k_CallocCrt, kNumFunctions }; // I'd like to put these together in a struct (perhaps in the // subclass, so we can put in perftools_fn_ as well), but vc8 seems // to have a bug where it doesn't initialize the struct properly if // we try to take the address of a function that's not yet loaded // from a dll, as is the common case for static_fn_. So we need // each to be in its own array. :-( static const char* const function_name_[kNumFunctions]; // This function is only used when statically linking the binary. // In that case, loading malloc/etc from the dll (via // PatchOneModule) won't work, since there are no dlls. Instead, // you just want to be taking the address of malloc/etc directly. // In the common, non-static-link case, these pointers will all be // NULL, since this initializer runs before msvcrt.dll is loaded. static const GenericFnPtr static_fn_[kNumFunctions]; // This is the address of the function we are going to patch // (malloc, etc). Other info about the function is in the // patch-specific subclasses, below. GenericFnPtr windows_fn_[kNumFunctions]; // This is set to true when this structure is initialized (because // we're patching a new library) and set to false when it's // uninitialized (because we've freed that library). bool is_valid_; const void *module_base_address_; size_t module_base_size_; public: // These shouldn't have to be public, since only subclasses of // LibcInfo need it, but they do. Maybe something to do with // templates. Shrug. I hide them down here so users won't see // them. :-) (OK, I also need to define ctrgProcAddress late.) bool is_valid() const { return is_valid_; } GenericFnPtr windows_fn(int ifunction) const { return windows_fn_[ifunction]; } // These three are needed by ModuleEntryCopy. static const int ctrgProcAddress = kNumFunctions; static GenericFnPtr static_fn(int ifunction) { return static_fn_[ifunction]; } static const char* const function_name(int ifunction) { return function_name_[ifunction]; } }; // Template trickiness: logically, a LibcInfo would include // Windows_malloc_, origstub_malloc_, and Perftools_malloc_: for a // given module, these three go together. And in fact, // Perftools_malloc_ may need to call origstub_malloc_, which means we // either need to change Perftools_malloc_ to take origstub_malloc_ as // an argument -- unfortunately impossible since it needs to keep the // same API as normal malloc -- or we need to write a different // version of Perftools_malloc_ for each LibcInfo instance we create. // We choose the second route, and use templates to implement it (we // could have also used macros). So to get multiple versions // of the struct, we say "struct<1> var1; struct<2> var2;". The price // we pay is some code duplication, and more annoying, each instance // of this var is a separate type. template class LibcInfoWithPatchFunctions : public LibcInfo { public: // me_info should have had PopulateWindowsFn() called on it, so the // module_* vars and windows_fn_ are set up. bool Patch(const LibcInfo& me_info); void Unpatch(); private: // This holds the original function contents after we patch the function. // This has to be defined static in the subclass, because the perftools_fns // reference origstub_fn_. static GenericFnPtr origstub_fn_[kNumFunctions]; // This is the function we want to patch in static const GenericFnPtr perftools_fn_[kNumFunctions]; static void* Perftools_malloc(size_t size) __THROW; static void Perftools_free(void* ptr) __THROW; static void* Perftools_realloc(void* ptr, size_t size) __THROW; static void* Perftools_calloc(size_t nmemb, size_t size) __THROW; static void* Perftools_new(size_t size); static void* Perftools_newarray(size_t size); static void Perftools_delete(void *ptr); static void Perftools_deletearray(void *ptr); static void* Perftools_new_nothrow(size_t size, const std::nothrow_t&) __THROW; static void* Perftools_newarray_nothrow(size_t size, const std::nothrow_t&) __THROW; static void Perftools_delete_nothrow(void *ptr, const std::nothrow_t&) __THROW; static void Perftools_deletearray_nothrow(void *ptr, const std::nothrow_t&) __THROW; static size_t Perftools__msize(void *ptr) __THROW; static void* Perftools__expand(void *ptr, size_t size) __THROW; // malloc.h also defines these functions: // _aligned_malloc, _aligned_free, // _recalloc, _aligned_offset_malloc, _aligned_realloc, _aligned_recalloc // _aligned_offset_realloc, _aligned_offset_recalloc, _malloca, _freea // But they seem pretty obscure, and I'm fine not overriding them for now. // It may be they all call into malloc/free anyway. }; // This is a subset of MODDULEENTRY32, that we need for patching. struct ModuleEntryCopy { LPVOID modBaseAddr; // the same as hmodule DWORD modBaseSize; // This is not part of MODDULEENTRY32, but is needed to avoid making // windows syscalls while we're holding patch_all_modules_lock (see // lock-inversion comments at patch_all_modules_lock definition, below). GenericFnPtr rgProcAddresses[LibcInfo::ctrgProcAddress]; ModuleEntryCopy() { modBaseAddr = NULL; modBaseSize = 0; for (int i = 0; i < sizeof(rgProcAddresses)/sizeof(*rgProcAddresses); i++) rgProcAddresses[i] = LibcInfo::static_fn(i); } ModuleEntryCopy(const MODULEINFO& mi) { this->modBaseAddr = mi.lpBaseOfDll; this->modBaseSize = mi.SizeOfImage; LPVOID modEndAddr = (char*)mi.lpBaseOfDll + mi.SizeOfImage; for (int i = 0; i < sizeof(rgProcAddresses)/sizeof(*rgProcAddresses); i++) { FARPROC target = ::GetProcAddress( reinterpret_cast(mi.lpBaseOfDll), LibcInfo::function_name(i)); // Sometimes a DLL forwards a function to a function in another // DLL. We don't want to patch those forwarded functions -- // they'll get patched when the other DLL is processed. if (target >= modBaseAddr && target < modEndAddr) rgProcAddresses[i] = (GenericFnPtr)target; else rgProcAddresses[i] = (GenericFnPtr)NULL; } } }; // This class is easier because there's only one of them. class WindowsInfo { public: void Patch(); void Unpatch(); private: // TODO(csilvers): should we be patching GlobalAlloc/LocalAlloc instead, // for pre-XP systems? enum { kHeapAlloc, kHeapFree, kVirtualAllocEx, kVirtualFreeEx, kMapViewOfFileEx, kUnmapViewOfFile, kLoadLibraryExW, kFreeLibrary, kNumFunctions }; struct FunctionInfo { const char* const name; // name of fn in a module (eg "malloc") GenericFnPtr windows_fn; // the fn whose name we call (&malloc) GenericFnPtr origstub_fn; // original fn contents after we patch const GenericFnPtr perftools_fn; // fn we want to patch in }; static FunctionInfo function_info_[kNumFunctions]; // A Windows-API equivalent of malloc and free static LPVOID WINAPI Perftools_HeapAlloc(HANDLE hHeap, DWORD dwFlags, DWORD_PTR dwBytes); static BOOL WINAPI Perftools_HeapFree(HANDLE hHeap, DWORD dwFlags, LPVOID lpMem); // A Windows-API equivalent of mmap and munmap, for "anonymous regions" static LPVOID WINAPI Perftools_VirtualAllocEx(HANDLE process, LPVOID address, SIZE_T size, DWORD type, DWORD protect); static BOOL WINAPI Perftools_VirtualFreeEx(HANDLE process, LPVOID address, SIZE_T size, DWORD type); // A Windows-API equivalent of mmap and munmap, for actual files static LPVOID WINAPI Perftools_MapViewOfFileEx(HANDLE hFileMappingObject, DWORD dwDesiredAccess, DWORD dwFileOffsetHigh, DWORD dwFileOffsetLow, SIZE_T dwNumberOfBytesToMap, LPVOID lpBaseAddress); static BOOL WINAPI Perftools_UnmapViewOfFile(LPCVOID lpBaseAddress); // We don't need the other 3 variants because they all call this one. */ static HMODULE WINAPI Perftools_LoadLibraryExW(LPCWSTR lpFileName, HANDLE hFile, DWORD dwFlags); static BOOL WINAPI Perftools_FreeLibrary(HMODULE hLibModule); }; // If you run out, just add a few more to the array. You'll also need // to update the switch statement in PatchOneModule(), and the list in // UnpatchWindowsFunctions(). // main_executable and main_executable_windows are two windows into // the same executable. One is responsible for patching the libc // routines that live in the main executable (if any) to use tcmalloc; // the other is responsible for patching the windows routines like // HeapAlloc/etc to use tcmalloc. static LibcInfoWithPatchFunctions<0> main_executable; static LibcInfoWithPatchFunctions<1> libc1; static LibcInfoWithPatchFunctions<2> libc2; static LibcInfoWithPatchFunctions<3> libc3; static LibcInfoWithPatchFunctions<4> libc4; static LibcInfoWithPatchFunctions<5> libc5; static LibcInfoWithPatchFunctions<6> libc6; static LibcInfoWithPatchFunctions<7> libc7; static LibcInfoWithPatchFunctions<8> libc8; static LibcInfo* g_module_libcs[] = { &libc1, &libc2, &libc3, &libc4, &libc5, &libc6, &libc7, &libc8 }; static WindowsInfo main_executable_windows; const char* const LibcInfo::function_name_[] = { "malloc", "free", "realloc", "calloc", kMangledNew, kMangledNewArray, kMangledDelete, kMangledDeleteArray, // Ideally we should patch the nothrow versions of new/delete, but // at least in msvcrt, nothrow-new machine-code is of a type we // can't patch. Since these are relatively rare, I'm hoping it's ok // not to patch them. (NULL name turns off patching.) NULL, // kMangledNewNothrow, NULL, // kMangledNewArrayNothrow, NULL, // kMangledDeleteNothrow, NULL, // kMangledDeleteArrayNothrow, "_msize", "_expand", "_calloc_crt", }; // For mingw, I can't patch the new/delete here, because the // instructions are too small to patch. Luckily, they're so small // because all they do is call into malloc/free, so they still end up // calling tcmalloc routines, and we don't actually lose anything // (except maybe some stacktrace goodness) by not patching. const GenericFnPtr LibcInfo::static_fn_[] = { (GenericFnPtr)&::malloc, (GenericFnPtr)&::free, (GenericFnPtr)&::realloc, (GenericFnPtr)&::calloc, #ifdef __MINGW32__ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, #else (GenericFnPtr)(void*(*)(size_t))&::operator new, (GenericFnPtr)(void*(*)(size_t))&::operator new[], (GenericFnPtr)(void(*)(void*))&::operator delete, (GenericFnPtr)(void(*)(void*))&::operator delete[], (GenericFnPtr) (void*(*)(size_t, struct std::nothrow_t const &))&::operator new, (GenericFnPtr) (void*(*)(size_t, struct std::nothrow_t const &))&::operator new[], (GenericFnPtr) (void(*)(void*, struct std::nothrow_t const &))&::operator delete, (GenericFnPtr) (void(*)(void*, struct std::nothrow_t const &))&::operator delete[], #endif (GenericFnPtr)&::_msize, (GenericFnPtr)&::_expand, (GenericFnPtr)&::calloc, }; template GenericFnPtr LibcInfoWithPatchFunctions::origstub_fn_[] = { // This will get filled in at run-time, as patching is done. }; template const GenericFnPtr LibcInfoWithPatchFunctions::perftools_fn_[] = { (GenericFnPtr)&Perftools_malloc, (GenericFnPtr)&Perftools_free, (GenericFnPtr)&Perftools_realloc, (GenericFnPtr)&Perftools_calloc, (GenericFnPtr)&Perftools_new, (GenericFnPtr)&Perftools_newarray, (GenericFnPtr)&Perftools_delete, (GenericFnPtr)&Perftools_deletearray, (GenericFnPtr)&Perftools_new_nothrow, (GenericFnPtr)&Perftools_newarray_nothrow, (GenericFnPtr)&Perftools_delete_nothrow, (GenericFnPtr)&Perftools_deletearray_nothrow, (GenericFnPtr)&Perftools__msize, (GenericFnPtr)&Perftools__expand, (GenericFnPtr)&Perftools_calloc, }; /*static*/ WindowsInfo::FunctionInfo WindowsInfo::function_info_[] = { { "HeapAlloc", NULL, NULL, (GenericFnPtr)&Perftools_HeapAlloc }, { "HeapFree", NULL, NULL, (GenericFnPtr)&Perftools_HeapFree }, { "VirtualAllocEx", NULL, NULL, (GenericFnPtr)&Perftools_VirtualAllocEx }, { "VirtualFreeEx", NULL, NULL, (GenericFnPtr)&Perftools_VirtualFreeEx }, { "MapViewOfFileEx", NULL, NULL, (GenericFnPtr)&Perftools_MapViewOfFileEx }, { "UnmapViewOfFile", NULL, NULL, (GenericFnPtr)&Perftools_UnmapViewOfFile }, { "LoadLibraryExW", NULL, NULL, (GenericFnPtr)&Perftools_LoadLibraryExW }, { "FreeLibrary", NULL, NULL, (GenericFnPtr)&Perftools_FreeLibrary }, }; bool LibcInfo::PopulateWindowsFn(const ModuleEntryCopy& module_entry) { // First, store the location of the function to patch before // patching it. If none of these functions are found in the module, // then this module has no libc in it, and we just return false. for (int i = 0; i < kNumFunctions; i++) { if (!function_name_[i]) // we can turn off patching by unsetting name continue; // The ::GetProcAddress calls were done in the ModuleEntryCopy // constructor, so we don't have to make any windows calls here. const GenericFnPtr fn = module_entry.rgProcAddresses[i]; if (fn) { windows_fn_[i] = PreamblePatcher::ResolveTarget(fn); } } // Some modules use the same function pointer for new and new[]. If // we find that, set one of the pointers to NULL so we don't double- // patch. Same may happen with new and nothrow-new, or even new[] // and nothrow-new. It's easiest just to check each fn-ptr against // every other. for (int i = 0; i < kNumFunctions; i++) { for (int j = i+1; j < kNumFunctions; j++) { if (windows_fn_[i] == windows_fn_[j]) { // We NULL the later one (j), so as to minimize the chances we // NULL kFree and kRealloc. See comments below. This is fragile! windows_fn_[j] = NULL; } } } // There's always a chance that our module uses the same function // as another module that we've already loaded. In that case, we // need to set our windows_fn to NULL, to avoid double-patching. for (int ifn = 0; ifn < kNumFunctions; ifn++) { for (int imod = 0; imod < sizeof(g_module_libcs)/sizeof(*g_module_libcs); imod++) { if (g_module_libcs[imod]->is_valid() && this->windows_fn(ifn) == g_module_libcs[imod]->windows_fn(ifn)) { windows_fn_[ifn] = NULL; } } } bool found_non_null = false; for (int i = 0; i < kNumFunctions; i++) { if (windows_fn_[i]) found_non_null = true; } if (!found_non_null) return false; // It's important we didn't NULL out windows_fn_[kFree] or [kRealloc]. // The reason is, if those are NULL-ed out, we'll never patch them // and thus never get an origstub_fn_ value for them, and when we // try to call origstub_fn_[kFree/kRealloc] in Perftools_free and // Perftools_realloc, below, it will fail. We could work around // that by adding a pointer from one patch-unit to the other, but we // haven't needed to yet. CHECK(windows_fn_[kFree]); CHECK(windows_fn_[kRealloc]); // OK, we successfully populated. Let's store our member information. module_base_address_ = module_entry.modBaseAddr; module_base_size_ = module_entry.modBaseSize; return true; } template bool LibcInfoWithPatchFunctions::Patch(const LibcInfo& me_info) { CopyFrom(me_info); // copies the module_entry and the windows_fn_ array for (int i = 0; i < kNumFunctions; i++) { if (windows_fn_[i] && windows_fn_[i] != perftools_fn_[i]) { // if origstub_fn_ is not NULL, it's left around from a previous // patch. We need to set it to NULL for the new Patch call. // // Note that origstub_fn_ was logically freed by // PreamblePatcher::Unpatch, so we don't have to do anything // about it. origstub_fn_[i] = NULL; // Patch() will fill this in CHECK_EQ(sidestep::SIDESTEP_SUCCESS, PreamblePatcher::Patch(windows_fn_[i], perftools_fn_[i], &origstub_fn_[i])); } } set_is_valid(true); return true; } template void LibcInfoWithPatchFunctions::Unpatch() { // We have to cast our GenericFnPtrs to void* for unpatch. This is // contra the C++ spec; we use C-style casts to empahsize that. for (int i = 0; i < kNumFunctions; i++) { if (windows_fn_[i]) CHECK_EQ(sidestep::SIDESTEP_SUCCESS, PreamblePatcher::Unpatch((void*)windows_fn_[i], (void*)perftools_fn_[i], (void*)origstub_fn_[i])); } set_is_valid(false); } void WindowsInfo::Patch() { HMODULE hkernel32 = ::GetModuleHandleA("kernel32"); CHECK_NE(hkernel32, NULL); // Unlike for libc, we know these exist in our module, so we can get // and patch at the same time. for (int i = 0; i < kNumFunctions; i++) { function_info_[i].windows_fn = (GenericFnPtr) ::GetProcAddress(hkernel32, function_info_[i].name); // If origstub_fn is not NULL, it's left around from a previous // patch. We need to set it to NULL for the new Patch call. // Since we've patched Unpatch() not to delete origstub_fn_ (it // causes problems in some contexts, though obviously not this // one), we should delete it now, before setting it to NULL. // NOTE: casting from a function to a pointer is contra the C++ // spec. It's not safe on IA64, but is on i386. We use // a C-style cast here to emphasize this is not legal C++. delete[] (char*)(function_info_[i].origstub_fn); function_info_[i].origstub_fn = NULL; // Patch() will fill this in CHECK_EQ(sidestep::SIDESTEP_SUCCESS, PreamblePatcher::Patch(function_info_[i].windows_fn, function_info_[i].perftools_fn, &function_info_[i].origstub_fn)); } } void WindowsInfo::Unpatch() { // We have to cast our GenericFnPtrs to void* for unpatch. This is // contra the C++ spec; we use C-style casts to empahsize that. for (int i = 0; i < kNumFunctions; i++) { CHECK_EQ(sidestep::SIDESTEP_SUCCESS, PreamblePatcher::Unpatch((void*)function_info_[i].windows_fn, (void*)function_info_[i].perftools_fn, (void*)function_info_[i].origstub_fn)); } } // You should hold the patch_all_modules_lock when calling this. void PatchOneModuleLocked(const LibcInfo& me_info) { // If we don't already have info on this module, let's add it. This // is where we're sad that each libcX has a different type, so we // can't use an array; instead, we have to use a switch statement. // Patch() returns false if there were no libc functions in the module. for (int i = 0; i < sizeof(g_module_libcs)/sizeof(*g_module_libcs); i++) { if (!g_module_libcs[i]->is_valid()) { // found an empty spot to add! switch (i) { case 0: libc1.Patch(me_info); return; case 1: libc2.Patch(me_info); return; case 2: libc3.Patch(me_info); return; case 3: libc4.Patch(me_info); return; case 4: libc5.Patch(me_info); return; case 5: libc6.Patch(me_info); return; case 6: libc7.Patch(me_info); return; case 7: libc8.Patch(me_info); return; } } } printf("PERFTOOLS ERROR: Too many modules containing libc in this executable\n"); } void PatchMainExecutableLocked() { if (main_executable.patched()) return; // main executable has already been patched ModuleEntryCopy fake_module_entry; // make a fake one to pass into Patch() // No need to call PopulateModuleEntryProcAddresses on the main executable. main_executable.PopulateWindowsFn(fake_module_entry); main_executable.Patch(main_executable); } // This lock is subject to a subtle and annoying lock inversion // problem: it may interact badly with unknown internal windows locks. // In particular, windows may be holding a lock when it calls // LoadLibraryExW and FreeLibrary, which we've patched. We have those // routines call PatchAllModules, which acquires this lock. If we // make windows system calls while holding this lock, those system // calls may need the internal windows locks that are being held in // the call to LoadLibraryExW, resulting in deadlock. The solution is // to be very careful not to call *any* windows routines while holding // patch_all_modules_lock, inside PatchAllModules(). static SpinLock patch_all_modules_lock(SpinLock::LINKER_INITIALIZED); // last_loaded: The set of modules that were loaded the last time // PatchAllModules was called. This is an optimization for only // looking at modules that were added or removed from the last call. static std::set *g_last_loaded; // Iterates over all the modules currently loaded by the executable, // according to windows, and makes sure they're all patched. Most // modules will already be in loaded_modules, meaning we have already // loaded and either patched them or determined they did not need to // be patched. Others will not, which means we need to patch them // (if necessary). Finally, we have to go through the existing // g_module_libcs and see if any of those are *not* in the modules // currently loaded by the executable. If so, we need to invalidate // them. Returns true if we did any work (patching or invalidating), // false if we were a noop. May update loaded_modules as well. // NOTE: you must hold the patch_all_modules_lock to access loaded_modules. bool PatchAllModules() { std::vector modules; bool made_changes = false; const HANDLE hCurrentProcess = GetCurrentProcess(); DWORD num_modules = 0; HMODULE hModules[kMaxModules]; // max # of modules we support in one process if (!::EnumProcessModules(hCurrentProcess, hModules, sizeof(hModules), &num_modules)) { num_modules = 0; } // EnumProcessModules actually set the bytes written into hModules, // so we need to divide to make num_modules actually be a module-count. num_modules /= sizeof(*hModules); if (num_modules >= kMaxModules) { printf("PERFTOOLS ERROR: Too many modules in this executable to try" " to patch them all (if you need to, raise kMaxModules in" " patch_functions.cc).\n"); num_modules = kMaxModules; } // Now we handle the unpatching of modules we have in g_module_libcs // but that were not found in EnumProcessModules. We need to // invalidate them. To speed that up, we store the EnumProcessModules // output in a set. // At the same time, we prepare for the adding of new modules, by // removing from hModules all the modules we know we've already // patched (or decided don't need to be patched). At the end, // hModules will hold only the modules that we need to consider patching. std::set currently_loaded_modules; { SpinLockHolder h(&patch_all_modules_lock); if (!g_last_loaded) g_last_loaded = new std::set; // At the end of this loop, currently_loaded_modules contains the // full list of EnumProcessModules, and hModules just the ones we // haven't handled yet. for (int i = 0; i < num_modules; ) { currently_loaded_modules.insert(hModules[i]); if (g_last_loaded->count(hModules[i]) > 0) { hModules[i] = hModules[--num_modules]; // replace element i with tail } else { i++; // keep element i } } // Now we do the unpatching/invalidation. for (int i = 0; i < sizeof(g_module_libcs)/sizeof(*g_module_libcs); i++) { if (g_module_libcs[i]->patched() && currently_loaded_modules.count(g_module_libcs[i]->hmodule()) == 0) { // Means g_module_libcs[i] is no longer loaded (no me32 matched). // We could call Unpatch() here, but why bother? The module // has gone away, so nobody is going to call into it anyway. g_module_libcs[i]->set_is_valid(false); made_changes = true; } } // Update the loaded module cache. g_last_loaded->swap(currently_loaded_modules); } // Now that we know what modules are new, let's get the info we'll // need to patch them. Note this *cannot* be done while holding the // lock, since it needs to make windows calls (see the lock-inversion // comments before the definition of patch_all_modules_lock). MODULEINFO mi; for (int i = 0; i < num_modules; i++) { if (::GetModuleInformation(hCurrentProcess, hModules[i], &mi, sizeof(mi))) modules.push_back(ModuleEntryCopy(mi)); } // Now we can do the patching of new modules. { SpinLockHolder h(&patch_all_modules_lock); for (std::vector::iterator it = modules.begin(); it != modules.end(); ++it) { LibcInfo libc_info; if (libc_info.PopulateWindowsFn(*it)) { // true==module has libc routines PatchOneModuleLocked(libc_info); made_changes = true; } } // Now that we've dealt with the modules (dlls), update the main // executable. We do this last because PatchMainExecutableLocked // wants to look at how other modules were patched. if (!main_executable.patched()) { PatchMainExecutableLocked(); made_changes = true; } } // TODO(csilvers): for this to be reliable, we need to also take // into account if we *would* have patched any modules had they not // already been loaded. (That is, made_changes should ignore // g_last_loaded.) return made_changes; } } // end unnamed namespace // --------------------------------------------------------------------- // Now that we've done all the patching machinery, let's actually // define the functions we're patching in. Mostly these are // simple wrappers around the do_* routines in tcmalloc.cc. // // In fact, we #include tcmalloc.cc to get at the tcmalloc internal // do_* functions, the better to write our own hook functions. // U-G-L-Y, I know. But the alternatives are, perhaps, worse. This // also lets us define _msize(), _expand(), and other windows-specific // functions here, using tcmalloc internals, without polluting // tcmalloc.cc. // ------------------------------------------------------------------- // TODO(csilvers): refactor tcmalloc.cc into two files, so I can link // against the file with do_malloc, and ignore the one with malloc. #include "tcmalloc.cc" template void* LibcInfoWithPatchFunctions::Perftools_malloc(size_t size) __THROW { void* result = do_malloc_or_cpp_alloc(size); MallocHook::InvokeNewHook(result, size); return result; } template void LibcInfoWithPatchFunctions::Perftools_free(void* ptr) __THROW { MallocHook::InvokeDeleteHook(ptr); // This calls the windows free if do_free decides ptr was not // allocated by tcmalloc. Note it calls the origstub_free from // *this* templatized instance of LibcInfo. See "template // trickiness" above. do_free_with_callback(ptr, (void (*)(void*))origstub_fn_[kFree]); } template void* LibcInfoWithPatchFunctions::Perftools_realloc( void* old_ptr, size_t new_size) __THROW { if (old_ptr == NULL) { void* result = do_malloc_or_cpp_alloc(new_size); MallocHook::InvokeNewHook(result, new_size); return result; } if (new_size == 0) { MallocHook::InvokeDeleteHook(old_ptr); do_free_with_callback(old_ptr, (void (*)(void*))origstub_fn_[kFree]); return NULL; } return do_realloc_with_callback( old_ptr, new_size, (void (*)(void*))origstub_fn_[kFree], (size_t (*)(const void*))origstub_fn_[k_Msize]); } template void* LibcInfoWithPatchFunctions::Perftools_calloc( size_t n, size_t elem_size) __THROW { void* result = do_calloc(n, elem_size); MallocHook::InvokeNewHook(result, n * elem_size); return result; } template void* LibcInfoWithPatchFunctions::Perftools_new(size_t size) { void* p = cpp_alloc(size, false); MallocHook::InvokeNewHook(p, size); return p; } template void* LibcInfoWithPatchFunctions::Perftools_newarray(size_t size) { void* p = cpp_alloc(size, false); MallocHook::InvokeNewHook(p, size); return p; } template void LibcInfoWithPatchFunctions::Perftools_delete(void *p) { MallocHook::InvokeDeleteHook(p); do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree]); } template void LibcInfoWithPatchFunctions::Perftools_deletearray(void *p) { MallocHook::InvokeDeleteHook(p); do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree]); } template void* LibcInfoWithPatchFunctions::Perftools_new_nothrow( size_t size, const std::nothrow_t&) __THROW { void* p = cpp_alloc(size, true); MallocHook::InvokeNewHook(p, size); return p; } template void* LibcInfoWithPatchFunctions::Perftools_newarray_nothrow( size_t size, const std::nothrow_t&) __THROW { void* p = cpp_alloc(size, true); MallocHook::InvokeNewHook(p, size); return p; } template void LibcInfoWithPatchFunctions::Perftools_delete_nothrow( void *p, const std::nothrow_t&) __THROW { MallocHook::InvokeDeleteHook(p); do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree]); } template void LibcInfoWithPatchFunctions::Perftools_deletearray_nothrow( void *p, const std::nothrow_t&) __THROW { MallocHook::InvokeDeleteHook(p); do_free_with_callback(p, (void (*)(void*))origstub_fn_[kFree]); } // _msize() lets you figure out how much space is reserved for a // pointer, in Windows. Even if applications don't call it, any DLL // with global constructors will call (transitively) something called // __dllonexit_lk in order to make sure the destructors get called // when the dll unloads. And that will call msize -- horrible things // can ensue if this is not hooked. Other parts of libc may also call // this internally. template size_t LibcInfoWithPatchFunctions::Perftools__msize(void* ptr) __THROW { return GetSizeWithCallback(ptr, (size_t (*)(const void*))origstub_fn_[k_Msize]); } // We need to define this because internal windows functions like to // call into it(?). _expand() is like realloc but doesn't move the // pointer. We punt, which will cause callers to fall back on realloc. template void* LibcInfoWithPatchFunctions::Perftools__expand(void *ptr, size_t size) __THROW { return NULL; } LPVOID WINAPI WindowsInfo::Perftools_HeapAlloc(HANDLE hHeap, DWORD dwFlags, DWORD_PTR dwBytes) { LPVOID result = ((LPVOID (WINAPI *)(HANDLE, DWORD, DWORD_PTR)) function_info_[kHeapAlloc].origstub_fn)( hHeap, dwFlags, dwBytes); MallocHook::InvokeNewHook(result, dwBytes); return result; } BOOL WINAPI WindowsInfo::Perftools_HeapFree(HANDLE hHeap, DWORD dwFlags, LPVOID lpMem) { MallocHook::InvokeDeleteHook(lpMem); return ((BOOL (WINAPI *)(HANDLE, DWORD, LPVOID)) function_info_[kHeapFree].origstub_fn)( hHeap, dwFlags, lpMem); } LPVOID WINAPI WindowsInfo::Perftools_VirtualAllocEx(HANDLE process, LPVOID address, SIZE_T size, DWORD type, DWORD protect) { LPVOID result = ((LPVOID (WINAPI *)(HANDLE, LPVOID, SIZE_T, DWORD, DWORD)) function_info_[kVirtualAllocEx].origstub_fn)( process, address, size, type, protect); // VirtualAllocEx() seems to be the Windows equivalent of mmap() MallocHook::InvokeMmapHook(result, address, size, protect, type, -1, 0); return result; } BOOL WINAPI WindowsInfo::Perftools_VirtualFreeEx(HANDLE process, LPVOID address, SIZE_T size, DWORD type) { MallocHook::InvokeMunmapHook(address, size); return ((BOOL (WINAPI *)(HANDLE, LPVOID, SIZE_T, DWORD)) function_info_[kVirtualFreeEx].origstub_fn)( process, address, size, type); } LPVOID WINAPI WindowsInfo::Perftools_MapViewOfFileEx( HANDLE hFileMappingObject, DWORD dwDesiredAccess, DWORD dwFileOffsetHigh, DWORD dwFileOffsetLow, SIZE_T dwNumberOfBytesToMap, LPVOID lpBaseAddress) { // For this function pair, you always deallocate the full block of // data that you allocate, so NewHook/DeleteHook is the right API. LPVOID result = ((LPVOID (WINAPI *)(HANDLE, DWORD, DWORD, DWORD, SIZE_T, LPVOID)) function_info_[kMapViewOfFileEx].origstub_fn)( hFileMappingObject, dwDesiredAccess, dwFileOffsetHigh, dwFileOffsetLow, dwNumberOfBytesToMap, lpBaseAddress); MallocHook::InvokeNewHook(result, dwNumberOfBytesToMap); return result; } BOOL WINAPI WindowsInfo::Perftools_UnmapViewOfFile(LPCVOID lpBaseAddress) { MallocHook::InvokeDeleteHook(lpBaseAddress); return ((BOOL (WINAPI *)(LPCVOID)) function_info_[kUnmapViewOfFile].origstub_fn)( lpBaseAddress); } // g_load_map holds a copy of windows' refcount for how many times // each currently loaded module has been loaded and unloaded. We use // it as an optimization when the same module is loaded more than // once: as long as the refcount stays above 1, we don't need to worry // about patching because it's already patched. Likewise, we don't // need to unpatch until the refcount drops to 0. load_map is // maintained in LoadLibraryExW and FreeLibrary, and only covers // modules explicitly loaded/freed via those interfaces. static std::map* g_load_map = NULL; HMODULE WINAPI WindowsInfo::Perftools_LoadLibraryExW(LPCWSTR lpFileName, HANDLE hFile, DWORD dwFlags) { HMODULE rv; // Check to see if the modules is already loaded, flag 0 gets a // reference if it was loaded. If it was loaded no need to call // PatchAllModules, just increase the reference count to match // what GetModuleHandleExW does internally inside windows. if (::GetModuleHandleExW(0, lpFileName, &rv)) { return rv; } else { // Not already loaded, so load it. rv = ((HMODULE (WINAPI *)(LPCWSTR, HANDLE, DWORD)) function_info_[kLoadLibraryExW].origstub_fn)( lpFileName, hFile, dwFlags); // This will patch any newly loaded libraries, if patching needs // to be done. PatchAllModules(); return rv; } } BOOL WINAPI WindowsInfo::Perftools_FreeLibrary(HMODULE hLibModule) { BOOL rv = ((BOOL (WINAPI *)(HMODULE)) function_info_[kFreeLibrary].origstub_fn)(hLibModule); // Check to see if the module is still loaded by passing the base // address and seeing if it comes back with the same address. If it // is the same address it's still loaded, so the FreeLibrary() call // was a noop, and there's no need to redo the patching. HMODULE owner = NULL; BOOL result = ::GetModuleHandleExW( (GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT), (LPCWSTR)hLibModule, &owner); if (result && owner == hLibModule) return rv; PatchAllModules(); // this will fix up the list of patched libraries return rv; } // --------------------------------------------------------------------- // PatchWindowsFunctions() // This is the function that is exposed to the outside world. // It should be called before the program becomes multi-threaded, // since main_executable_windows.Patch() is not thread-safe. // --------------------------------------------------------------------- void PatchWindowsFunctions() { // This does the libc patching in every module, and the main executable. PatchAllModules(); main_executable_windows.Patch(); } #if 0 // It's possible to unpatch all the functions when we are exiting. // The idea is to handle properly windows-internal data that is // allocated before PatchWindowsFunctions is called. If all // destruction happened in reverse order from construction, then we // could call UnpatchWindowsFunctions at just the right time, so that // that early-allocated data would be freed using the windows // allocation functions rather than tcmalloc. The problem is that // windows allocates some structures lazily, so it would allocate them // late (using tcmalloc) and then try to deallocate them late as well. // So instead of unpatching, we just modify all the tcmalloc routines // so they call through to the libc rountines if the memory in // question doesn't seem to have been allocated with tcmalloc. I keep // this unpatch code around for reference. void UnpatchWindowsFunctions() { // We need to go back to the system malloc/etc at global destruct time, // so objects that were constructed before tcmalloc, using the system // malloc, can destroy themselves using the system free. This depends // on DLLs unloading in the reverse order in which they load! // // We also go back to the default HeapAlloc/etc, just for consistency. // Who knows, it may help avoid weird bugs in some situations. main_executable_windows.Unpatch(); main_executable.Unpatch(); if (libc1.is_valid()) libc1.Unpatch(); if (libc2.is_valid()) libc2.Unpatch(); if (libc3.is_valid()) libc3.Unpatch(); if (libc4.is_valid()) libc4.Unpatch(); if (libc5.is_valid()) libc5.Unpatch(); if (libc6.is_valid()) libc6.Unpatch(); if (libc7.is_valid()) libc7.Unpatch(); if (libc8.is_valid()) libc8.Unpatch(); } #endif gperftools-2.4/src/windows/preamble_patcher.cc0000644000000000000000000007102212440704174016524 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * Author: Scott Francis * * Implementation of PreamblePatcher */ #include "preamble_patcher.h" #include "mini_disassembler.h" // compatibility shims #include "base/logging.h" // Definitions of assembly statements we need #define ASM_JMP32REL 0xE9 #define ASM_INT3 0xCC #define ASM_JMP32ABS_0 0xFF #define ASM_JMP32ABS_1 0x25 #define ASM_JMP8REL 0xEB #define ASM_JCC32REL_0 0x0F #define ASM_JCC32REL_1_MASK 0x80 #define ASM_NOP 0x90 // X64 opcodes #define ASM_REXW 0x48 #define ASM_MOVRAX_IMM 0xB8 #define ASM_JMP 0xFF #define ASM_JMP_RAX 0xE0 namespace sidestep { PreamblePatcher::PreamblePage* PreamblePatcher::preamble_pages_ = NULL; long PreamblePatcher::granularity_ = 0; long PreamblePatcher::pagesize_ = 0; bool PreamblePatcher::initialized_ = false; static const unsigned int kPreamblePageMagic = 0x4347414D; // "MAGC" // Handle a special case that we see with functions that point into an // IAT table (including functions linked statically into the // application): these function already starts with ASM_JMP32*. For // instance, malloc() might be implemented as a JMP to __malloc(). // This function follows the initial JMPs for us, until we get to the // place where the actual code is defined. If we get to STOP_BEFORE, // we return the address before stop_before. The stop_before_trampoline // flag is used in 64-bit mode. If true, we will return the address // before a trampoline is detected. Trampolines are defined as: // // nop // mov rax, // jmp rax // // See PreamblePatcher::RawPatchWithStub for more information. void* PreamblePatcher::ResolveTargetImpl(unsigned char* target, unsigned char* stop_before, bool stop_before_trampoline) { if (target == NULL) return NULL; while (1) { unsigned char* new_target; if (target[0] == ASM_JMP32REL) { // target[1-4] holds the place the jmp goes to, but it's // relative to the next instruction. int relative_offset; // Windows guarantees int is 4 bytes SIDESTEP_ASSERT(sizeof(relative_offset) == 4); memcpy(reinterpret_cast(&relative_offset), reinterpret_cast(target + 1), 4); new_target = target + 5 + relative_offset; } else if (target[0] == ASM_JMP8REL) { // Visual Studio 7.1 implements new[] as an 8 bit jump to new signed char relative_offset; memcpy(reinterpret_cast(&relative_offset), reinterpret_cast(target + 1), 1); new_target = target + 2 + relative_offset; } else if (target[0] == ASM_JMP32ABS_0 && target[1] == ASM_JMP32ABS_1) { jmp32rel: // Visual studio seems to sometimes do it this way instead of the // previous way. Not sure what the rules are, but it was happening // with operator new in some binaries. void** new_target_v; if (kIs64BitBinary) { // In 64-bit mode JMPs are RIP-relative, not absolute int target_offset; memcpy(reinterpret_cast(&target_offset), reinterpret_cast(target + 2), 4); new_target_v = reinterpret_cast(target + target_offset + 6); } else { SIDESTEP_ASSERT(sizeof(new_target) == 4); memcpy(&new_target_v, reinterpret_cast(target + 2), 4); } new_target = reinterpret_cast(*new_target_v); } else if (kIs64BitBinary && target[0] == ASM_REXW && target[1] == ASM_JMP32ABS_0 && target[2] == ASM_JMP32ABS_1) { // in Visual Studio 2012 we're seeing jump like that: // rex.W jmpq *0x11d019(%rip) // // according to docs I have, rex prefix is actually unneeded and // can be ignored. I.e. docs say for jumps like that operand // already defaults to 64-bit. But clearly it breaks abs. jump // detection above and we just skip rex target++; goto jmp32rel; } else { break; } if (new_target == stop_before) break; if (stop_before_trampoline && *new_target == ASM_NOP && new_target[1] == ASM_REXW && new_target[2] == ASM_MOVRAX_IMM) break; target = new_target; } return target; } // Special case scoped_ptr to avoid dependency on scoped_ptr below. class DeleteUnsignedCharArray { public: DeleteUnsignedCharArray(unsigned char* array) : array_(array) { } ~DeleteUnsignedCharArray() { if (array_) { PreamblePatcher::FreePreambleBlock(array_); } } unsigned char* Release() { unsigned char* temp = array_; array_ = NULL; return temp; } private: unsigned char* array_; }; SideStepError PreamblePatcher::RawPatchWithStubAndProtections( void* target_function, void *replacement_function, unsigned char* preamble_stub, unsigned long stub_size, unsigned long* bytes_needed) { // We need to be able to write to a process-local copy of the first // MAX_PREAMBLE_STUB_SIZE bytes of target_function DWORD old_target_function_protect = 0; BOOL succeeded = ::VirtualProtect(reinterpret_cast(target_function), MAX_PREAMBLE_STUB_SIZE, PAGE_EXECUTE_READWRITE, &old_target_function_protect); if (!succeeded) { SIDESTEP_ASSERT(false && "Failed to make page containing target function " "copy-on-write."); return SIDESTEP_ACCESS_DENIED; } SideStepError error_code = RawPatchWithStub(target_function, replacement_function, preamble_stub, stub_size, bytes_needed); // Restore the protection of the first MAX_PREAMBLE_STUB_SIZE bytes of // pTargetFunction to what they were before we started goofing around. // We do this regardless of whether the patch succeeded or not. succeeded = ::VirtualProtect(reinterpret_cast(target_function), MAX_PREAMBLE_STUB_SIZE, old_target_function_protect, &old_target_function_protect); if (!succeeded) { SIDESTEP_ASSERT(false && "Failed to restore protection to target function."); // We must not return an error here because the function has // likely actually been patched, and returning an error might // cause our client code not to unpatch it. So we just keep // going. } if (SIDESTEP_SUCCESS != error_code) { // Testing RawPatchWithStub, above SIDESTEP_ASSERT(false); return error_code; } // Flush the instruction cache to make sure the processor doesn't execute the // old version of the instructions (before our patch). // // FlushInstructionCache is actually a no-op at least on // single-processor XP machines. I'm not sure why this is so, but // it is, yet I want to keep the call to the API here for // correctness in case there is a difference in some variants of // Windows/hardware. succeeded = ::FlushInstructionCache(::GetCurrentProcess(), target_function, MAX_PREAMBLE_STUB_SIZE); if (!succeeded) { SIDESTEP_ASSERT(false && "Failed to flush instruction cache."); // We must not return an error here because the function has actually // been patched, and returning an error would likely cause our client // code not to unpatch it. So we just keep going. } return SIDESTEP_SUCCESS; } SideStepError PreamblePatcher::RawPatch(void* target_function, void* replacement_function, void** original_function_stub) { if (!target_function || !replacement_function || !original_function_stub || (*original_function_stub) || target_function == replacement_function) { SIDESTEP_ASSERT(false && "Preconditions not met"); return SIDESTEP_INVALID_PARAMETER; } BOOL succeeded = FALSE; // First, deal with a special case that we see with functions that // point into an IAT table (including functions linked statically // into the application): these function already starts with // ASM_JMP32REL. For instance, malloc() might be implemented as a // JMP to __malloc(). In that case, we replace the destination of // the JMP (__malloc), rather than the JMP itself (malloc). This // way we get the correct behavior no matter how malloc gets called. void* new_target = ResolveTarget(target_function); if (new_target != target_function) { target_function = new_target; } // In 64-bit mode, preamble_stub must be within 2GB of target function // so that if target contains a jump, we can translate it. unsigned char* preamble_stub = AllocPreambleBlockNear(target_function); if (!preamble_stub) { SIDESTEP_ASSERT(false && "Unable to allocate preamble-stub."); return SIDESTEP_INSUFFICIENT_BUFFER; } // Frees the array at end of scope. DeleteUnsignedCharArray guard_preamble_stub(preamble_stub); SideStepError error_code = RawPatchWithStubAndProtections( target_function, replacement_function, preamble_stub, MAX_PREAMBLE_STUB_SIZE, NULL); if (SIDESTEP_SUCCESS != error_code) { SIDESTEP_ASSERT(false); return error_code; } // Flush the instruction cache to make sure the processor doesn't execute the // old version of the instructions (before our patch). // // FlushInstructionCache is actually a no-op at least on // single-processor XP machines. I'm not sure why this is so, but // it is, yet I want to keep the call to the API here for // correctness in case there is a difference in some variants of // Windows/hardware. succeeded = ::FlushInstructionCache(::GetCurrentProcess(), target_function, MAX_PREAMBLE_STUB_SIZE); if (!succeeded) { SIDESTEP_ASSERT(false && "Failed to flush instruction cache."); // We must not return an error here because the function has actually // been patched, and returning an error would likely cause our client // code not to unpatch it. So we just keep going. } SIDESTEP_LOG("PreamblePatcher::RawPatch successfully patched."); // detach the scoped pointer so the memory is not freed *original_function_stub = reinterpret_cast(guard_preamble_stub.Release()); return SIDESTEP_SUCCESS; } SideStepError PreamblePatcher::Unpatch(void* target_function, void* replacement_function, void* original_function_stub) { SIDESTEP_ASSERT(target_function && replacement_function && original_function_stub); if (!target_function || !replacement_function || !original_function_stub) { return SIDESTEP_INVALID_PARAMETER; } // Before unpatching, target_function should be a JMP to // replacement_function. If it's not, then either it's an error, or // we're falling into the case where the original instruction was a // JMP, and we patched the jumped_to address rather than the JMP // itself. (For instance, if malloc() is just a JMP to __malloc(), // we patched __malloc() and not malloc().) unsigned char* target = reinterpret_cast(target_function); target = reinterpret_cast( ResolveTargetImpl( target, reinterpret_cast(replacement_function), true)); // We should end at the function we patched. When we patch, we insert // a ASM_JMP32REL instruction, so look for that as a sanity check. if (target[0] != ASM_JMP32REL) { SIDESTEP_ASSERT(false && "target_function does not look like it was patched."); return SIDESTEP_INVALID_PARAMETER; } const unsigned int kRequiredTargetPatchBytes = 5; // We need to be able to write to a process-local copy of the first // kRequiredTargetPatchBytes bytes of target_function DWORD old_target_function_protect = 0; BOOL succeeded = ::VirtualProtect(reinterpret_cast(target), kRequiredTargetPatchBytes, PAGE_EXECUTE_READWRITE, &old_target_function_protect); if (!succeeded) { SIDESTEP_ASSERT(false && "Failed to make page containing target function " "copy-on-write."); return SIDESTEP_ACCESS_DENIED; } unsigned char* preamble_stub = reinterpret_cast( original_function_stub); // Disassemble the preamble of stub and copy the bytes back to target. // If we've done any conditional jumps in the preamble we need to convert // them back to the original REL8 jumps in the target. MiniDisassembler disassembler; unsigned int preamble_bytes = 0; unsigned int target_bytes = 0; while (target_bytes < kRequiredTargetPatchBytes) { unsigned int cur_bytes = 0; InstructionType instruction_type = disassembler.Disassemble(preamble_stub + preamble_bytes, cur_bytes); if (IT_JUMP == instruction_type) { unsigned int jump_bytes = 0; SideStepError jump_ret = SIDESTEP_JUMP_INSTRUCTION; if (IsNearConditionalJump(preamble_stub + preamble_bytes, cur_bytes) || IsNearRelativeJump(preamble_stub + preamble_bytes, cur_bytes) || IsNearAbsoluteCall(preamble_stub + preamble_bytes, cur_bytes) || IsNearRelativeCall(preamble_stub + preamble_bytes, cur_bytes)) { jump_ret = PatchNearJumpOrCall(preamble_stub + preamble_bytes, cur_bytes, target + target_bytes, &jump_bytes, MAX_PREAMBLE_STUB_SIZE); } if (jump_ret == SIDESTEP_JUMP_INSTRUCTION) { SIDESTEP_ASSERT(false && "Found unsupported jump instruction in stub!!"); return SIDESTEP_UNSUPPORTED_INSTRUCTION; } target_bytes += jump_bytes; } else if (IT_GENERIC == instruction_type) { if (IsMovWithDisplacement(preamble_stub + preamble_bytes, cur_bytes)) { unsigned int mov_bytes = 0; if (PatchMovWithDisplacement(preamble_stub + preamble_bytes, cur_bytes, target + target_bytes, &mov_bytes, MAX_PREAMBLE_STUB_SIZE) != SIDESTEP_SUCCESS) { SIDESTEP_ASSERT(false && "Found unsupported generic instruction in stub!!"); return SIDESTEP_UNSUPPORTED_INSTRUCTION; } } else { memcpy(reinterpret_cast(target + target_bytes), reinterpret_cast(reinterpret_cast( original_function_stub) + preamble_bytes), cur_bytes); target_bytes += cur_bytes; } } else { SIDESTEP_ASSERT(false && "Found unsupported instruction in stub!!"); return SIDESTEP_UNSUPPORTED_INSTRUCTION; } preamble_bytes += cur_bytes; } FreePreambleBlock(reinterpret_cast(original_function_stub)); // Restore the protection of the first kRequiredTargetPatchBytes bytes of // target to what they were before we started goofing around. succeeded = ::VirtualProtect(reinterpret_cast(target), kRequiredTargetPatchBytes, old_target_function_protect, &old_target_function_protect); // Flush the instruction cache to make sure the processor doesn't execute the // old version of the instructions (before our patch). // // See comment on FlushInstructionCache elsewhere in this file. succeeded = ::FlushInstructionCache(::GetCurrentProcess(), target, MAX_PREAMBLE_STUB_SIZE); if (!succeeded) { SIDESTEP_ASSERT(false && "Failed to flush instruction cache."); return SIDESTEP_UNEXPECTED; } SIDESTEP_LOG("PreamblePatcher::Unpatch successfully unpatched."); return SIDESTEP_SUCCESS; } void PreamblePatcher::Initialize() { if (!initialized_) { SYSTEM_INFO si = { 0 }; ::GetSystemInfo(&si); granularity_ = si.dwAllocationGranularity; pagesize_ = si.dwPageSize; initialized_ = true; } } unsigned char* PreamblePatcher::AllocPreambleBlockNear(void* target) { PreamblePage* preamble_page = preamble_pages_; while (preamble_page != NULL) { if (preamble_page->free_ != NULL) { __int64 val = reinterpret_cast<__int64>(preamble_page) - reinterpret_cast<__int64>(target); if ((val > 0 && val + pagesize_ <= INT_MAX) || (val < 0 && val >= INT_MIN)) { break; } } preamble_page = preamble_page->next_; } // The free_ member of the page is used to store the next available block // of memory to use or NULL if there are no chunks available, in which case // we'll allocate a new page. if (preamble_page == NULL || preamble_page->free_ == NULL) { // Create a new preamble page and initialize the free list preamble_page = reinterpret_cast(AllocPageNear(target)); SIDESTEP_ASSERT(preamble_page != NULL && "Could not allocate page!"); void** pp = &preamble_page->free_; unsigned char* ptr = reinterpret_cast(preamble_page) + MAX_PREAMBLE_STUB_SIZE; unsigned char* limit = reinterpret_cast(preamble_page) + pagesize_; while (ptr < limit) { *pp = ptr; pp = reinterpret_cast(ptr); ptr += MAX_PREAMBLE_STUB_SIZE; } *pp = NULL; // Insert the new page into the list preamble_page->magic_ = kPreamblePageMagic; preamble_page->next_ = preamble_pages_; preamble_pages_ = preamble_page; } unsigned char* ret = reinterpret_cast(preamble_page->free_); preamble_page->free_ = *(reinterpret_cast(preamble_page->free_)); return ret; } void PreamblePatcher::FreePreambleBlock(unsigned char* block) { SIDESTEP_ASSERT(block != NULL); SIDESTEP_ASSERT(granularity_ != 0); uintptr_t ptr = reinterpret_cast(block); ptr -= ptr & (granularity_ - 1); PreamblePage* preamble_page = reinterpret_cast(ptr); SIDESTEP_ASSERT(preamble_page->magic_ == kPreamblePageMagic); *(reinterpret_cast(block)) = preamble_page->free_; preamble_page->free_ = block; } void* PreamblePatcher::AllocPageNear(void* target) { MEMORY_BASIC_INFORMATION mbi = { 0 }; if (!::VirtualQuery(target, &mbi, sizeof(mbi))) { SIDESTEP_ASSERT(false && "VirtualQuery failed on target address"); return 0; } if (initialized_ == false) { PreamblePatcher::Initialize(); SIDESTEP_ASSERT(initialized_); } void* pv = NULL; unsigned char* allocation_base = reinterpret_cast( mbi.AllocationBase); __int64 i = 1; bool high_target = reinterpret_cast<__int64>(target) > UINT_MAX; while (pv == NULL) { __int64 val = reinterpret_cast<__int64>(allocation_base) - (i * granularity_); if (high_target && reinterpret_cast<__int64>(target) - val > INT_MAX) { // We're further than 2GB from the target break; } else if (val <= NULL) { // Less than 0 break; } pv = ::VirtualAlloc(reinterpret_cast(allocation_base - (i++ * granularity_)), pagesize_, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE); } // We couldn't allocate low, try to allocate high if (pv == NULL) { i = 1; // Round up to the next multiple of page granularity allocation_base = reinterpret_cast( (reinterpret_cast<__int64>(target) & (~(granularity_ - 1))) + granularity_); while (pv == NULL) { __int64 val = reinterpret_cast<__int64>(allocation_base) + (i * granularity_) - reinterpret_cast<__int64>(target); if (val > INT_MAX || val < 0) { // We're too far or we overflowed break; } pv = ::VirtualAlloc(reinterpret_cast(allocation_base + (i++ * granularity_)), pagesize_, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE); } } return pv; } bool PreamblePatcher::IsShortConditionalJump( unsigned char* target, unsigned int instruction_size) { return (*(target) & 0x70) == 0x70 && instruction_size == 2; } bool PreamblePatcher::IsShortJump( unsigned char* target, unsigned int instruction_size) { return target[0] == 0xeb && instruction_size == 2; } bool PreamblePatcher::IsNearConditionalJump( unsigned char* target, unsigned int instruction_size) { return *(target) == 0xf && (*(target + 1) & 0x80) == 0x80 && instruction_size == 6; } bool PreamblePatcher::IsNearRelativeJump( unsigned char* target, unsigned int instruction_size) { return *(target) == 0xe9 && instruction_size == 5; } bool PreamblePatcher::IsNearAbsoluteCall( unsigned char* target, unsigned int instruction_size) { return *(target) == 0xff && (*(target + 1) & 0x10) == 0x10 && instruction_size == 6; } bool PreamblePatcher::IsNearRelativeCall( unsigned char* target, unsigned int instruction_size) { return *(target) == 0xe8 && instruction_size == 5; } bool PreamblePatcher::IsMovWithDisplacement( unsigned char* target, unsigned int instruction_size) { // In this case, the ModRM byte's mod field will be 0 and r/m will be 101b (5) return instruction_size == 7 && *target == 0x48 && *(target + 1) == 0x8b && (*(target + 2) >> 6) == 0 && (*(target + 2) & 0x7) == 5; } SideStepError PreamblePatcher::PatchShortConditionalJump( unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size) { // note: rel8 offset is signed. Thus we need to ask for signed char // to negative offsets right unsigned char* original_jump_dest = (source + 2) + static_cast(source[1]); unsigned char* stub_jump_from = target + 6; __int64 fixup_jump_offset = original_jump_dest - stub_jump_from; if (fixup_jump_offset > INT_MAX || fixup_jump_offset < INT_MIN) { SIDESTEP_ASSERT(false && "Unable to fix up short jump because target" " is too far away."); return SIDESTEP_JUMP_INSTRUCTION; } *target_bytes = 6; if (target_size > *target_bytes) { // Convert the short jump to a near jump. // // 0f 8x xx xx xx xx = Jcc rel32off unsigned short jmpcode = ((0x80 | (source[0] & 0xf)) << 8) | 0x0f; memcpy(reinterpret_cast(target), reinterpret_cast(&jmpcode), 2); memcpy(reinterpret_cast(target + 2), reinterpret_cast(&fixup_jump_offset), 4); } return SIDESTEP_SUCCESS; } SideStepError PreamblePatcher::PatchShortJump( unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size) { // note: rel8 offset is _signed_. Thus we need signed char here. unsigned char* original_jump_dest = (source + 2) + static_cast(source[1]); unsigned char* stub_jump_from = target + 5; __int64 fixup_jump_offset = original_jump_dest - stub_jump_from; if (fixup_jump_offset > INT_MAX || fixup_jump_offset < INT_MIN) { SIDESTEP_ASSERT(false && "Unable to fix up short jump because target" " is too far away."); return SIDESTEP_JUMP_INSTRUCTION; } *target_bytes = 5; if (target_size > *target_bytes) { // Convert the short jump to a near jump. // // e9 xx xx xx xx = jmp rel32off target[0] = 0xe9; memcpy(reinterpret_cast(target + 1), reinterpret_cast(&fixup_jump_offset), 4); } return SIDESTEP_SUCCESS; } SideStepError PreamblePatcher::PatchNearJumpOrCall( unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size) { SIDESTEP_ASSERT(instruction_size == 5 || instruction_size == 6); unsigned int jmp_offset_in_instruction = instruction_size == 5 ? 1 : 2; unsigned char* original_jump_dest = reinterpret_cast( reinterpret_cast<__int64>(source + instruction_size) + *(reinterpret_cast(source + jmp_offset_in_instruction))); unsigned char* stub_jump_from = target + instruction_size; __int64 fixup_jump_offset = original_jump_dest - stub_jump_from; if (fixup_jump_offset > INT_MAX || fixup_jump_offset < INT_MIN) { SIDESTEP_ASSERT(false && "Unable to fix up near jump because target" " is too far away."); return SIDESTEP_JUMP_INSTRUCTION; } if ((fixup_jump_offset < SCHAR_MAX && fixup_jump_offset > SCHAR_MIN)) { *target_bytes = 2; if (target_size > *target_bytes) { // If the new offset is in range, use a short jump instead of a near jump. if (source[0] == ASM_JCC32REL_0 && (source[1] & ASM_JCC32REL_1_MASK) == ASM_JCC32REL_1_MASK) { unsigned short jmpcode = (static_cast( fixup_jump_offset) << 8) | (0x70 | (source[1] & 0xf)); memcpy(reinterpret_cast(target), reinterpret_cast(&jmpcode), 2); } else { target[0] = ASM_JMP8REL; target[1] = static_cast(fixup_jump_offset); } } } else { *target_bytes = instruction_size; if (target_size > *target_bytes) { memcpy(reinterpret_cast(target), reinterpret_cast(source), jmp_offset_in_instruction); memcpy(reinterpret_cast(target + jmp_offset_in_instruction), reinterpret_cast(&fixup_jump_offset), 4); } } return SIDESTEP_SUCCESS; } SideStepError PreamblePatcher::PatchMovWithDisplacement( unsigned char* source, unsigned int instruction_size, unsigned char* target, unsigned int* target_bytes, unsigned int target_size) { SIDESTEP_ASSERT(instruction_size == 7); const int mov_offset_in_instruction = 3; // 0x48 0x8b 0x0d unsigned char* original_mov_dest = reinterpret_cast( reinterpret_cast<__int64>(source + instruction_size) + *(reinterpret_cast(source + mov_offset_in_instruction))); unsigned char* stub_mov_from = target + instruction_size; __int64 fixup_mov_offset = original_mov_dest - stub_mov_from; if (fixup_mov_offset > INT_MAX || fixup_mov_offset < INT_MIN) { SIDESTEP_ASSERT(false && "Unable to fix up near MOV because target is too far away."); return SIDESTEP_UNEXPECTED; } *target_bytes = instruction_size; if (target_size > *target_bytes) { memcpy(reinterpret_cast(target), reinterpret_cast(source), mov_offset_in_instruction); memcpy(reinterpret_cast(target + mov_offset_in_instruction), reinterpret_cast(&fixup_mov_offset), 4); } return SIDESTEP_SUCCESS; } }; // namespace sidestep gperftools-2.4/src/windows/preamble_patcher_with_stub.cc0000644000000000000000000003216612440704174020622 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2007, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * Author: Scott Francis * * Implementation of PreamblePatcher */ #include "preamble_patcher.h" #include "mini_disassembler.h" // Definitions of assembly statements we need #define ASM_JMP32REL 0xE9 #define ASM_INT3 0xCC #define ASM_NOP 0x90 // X64 opcodes #define ASM_MOVRAX_IMM 0xB8 #define ASM_REXW 0x48 #define ASM_JMP 0xFF #define ASM_JMP_RAX 0xE0 #define ASM_PUSH 0x68 #define ASM_RET 0xC3 namespace sidestep { SideStepError PreamblePatcher::RawPatchWithStub( void* target_function, void* replacement_function, unsigned char* preamble_stub, unsigned long stub_size, unsigned long* bytes_needed) { if ((NULL == target_function) || (NULL == replacement_function) || (NULL == preamble_stub)) { SIDESTEP_ASSERT(false && "Invalid parameters - either pTargetFunction or " "pReplacementFunction or pPreambleStub were NULL."); return SIDESTEP_INVALID_PARAMETER; } // TODO(V7:joi) Siggi and I just had a discussion and decided that both // patching and unpatching are actually unsafe. We also discussed a // method of making it safe, which is to freeze all other threads in the // process, check their thread context to see if their eip is currently // inside the block of instructions we need to copy to the stub, and if so // wait a bit and try again, then unfreeze all threads once we've patched. // Not implementing this for now since we're only using SideStep for unit // testing, but if we ever use it for production code this is what we // should do. // // NOTE: Stoyan suggests we can write 8 or even 10 bytes atomically using // FPU instructions, and on newer processors we could use cmpxchg8b or // cmpxchg16b. So it might be possible to do the patching/unpatching // atomically and avoid having to freeze other threads. Note though, that // doing it atomically does not help if one of the other threads happens // to have its eip in the middle of the bytes you change while you change // them. unsigned char* target = reinterpret_cast(target_function); unsigned int required_trampoline_bytes = 0; const unsigned int kRequiredStubJumpBytes = 5; const unsigned int kRequiredTargetPatchBytes = 5; // Initialize the stub with INT3's just in case. if (stub_size) { memset(preamble_stub, 0xcc, stub_size); } if (kIs64BitBinary) { // In 64-bit mode JMP instructions are always relative to RIP. If the // replacement - target offset is > 2GB, we can't JMP to the replacement // function. In this case, we're going to use a trampoline - that is, // we're going to do a relative jump to a small chunk of code in the stub // that will then do the absolute jump to the replacement function. By // doing this, we only need to patch 5 bytes in the target function, as // opposed to patching 12 bytes if we were to do an absolute jump. // // Note that the first byte of the trampoline is a NOP instruction. This // is used as a trampoline signature that will be detected when unpatching // the function. // // jmp // // trampoline: // nop // mov rax, // jmp rax // __int64 replacement_target_offset = reinterpret_cast<__int64>( replacement_function) - reinterpret_cast<__int64>(target) - 5; if (replacement_target_offset > INT_MAX || replacement_target_offset < INT_MIN) { // The stub needs to be within 2GB of the target for the trampoline to // work! __int64 trampoline_offset = reinterpret_cast<__int64>(preamble_stub) - reinterpret_cast<__int64>(target) - 5; if (trampoline_offset > INT_MAX || trampoline_offset < INT_MIN) { // We're screwed. SIDESTEP_ASSERT(false && "Preamble stub is too far from target to patch."); return SIDESTEP_UNEXPECTED; } required_trampoline_bytes = 13; } } // Let's disassemble the preamble of the target function to see if we can // patch, and to see how much of the preamble we need to take. We need 5 // bytes for our jmp instruction, so let's find the minimum number of // instructions to get 5 bytes. MiniDisassembler disassembler; unsigned int preamble_bytes = 0; unsigned int stub_bytes = 0; while (preamble_bytes < kRequiredTargetPatchBytes) { unsigned int cur_bytes = 0; InstructionType instruction_type = disassembler.Disassemble(target + preamble_bytes, cur_bytes); if (IT_JUMP == instruction_type) { unsigned int jump_bytes = 0; SideStepError jump_ret = SIDESTEP_JUMP_INSTRUCTION; if (IsShortConditionalJump(target + preamble_bytes, cur_bytes)) { jump_ret = PatchShortConditionalJump(target + preamble_bytes, cur_bytes, preamble_stub + stub_bytes, &jump_bytes, stub_size - stub_bytes); } else if (IsShortJump(target + preamble_bytes, cur_bytes)) { jump_ret = PatchShortJump(target + preamble_bytes, cur_bytes, preamble_stub + stub_bytes, &jump_bytes, stub_size - stub_bytes); } else if (IsNearConditionalJump(target + preamble_bytes, cur_bytes) || IsNearRelativeJump(target + preamble_bytes, cur_bytes) || IsNearAbsoluteCall(target + preamble_bytes, cur_bytes) || IsNearRelativeCall(target + preamble_bytes, cur_bytes)) { jump_ret = PatchNearJumpOrCall(target + preamble_bytes, cur_bytes, preamble_stub + stub_bytes, &jump_bytes, stub_size - stub_bytes); } if (jump_ret != SIDESTEP_SUCCESS) { SIDESTEP_ASSERT(false && "Unable to patch because there is an unhandled branch " "instruction in the initial preamble bytes."); return SIDESTEP_JUMP_INSTRUCTION; } stub_bytes += jump_bytes; } else if (IT_RETURN == instruction_type) { SIDESTEP_ASSERT(false && "Unable to patch because function is too short"); return SIDESTEP_FUNCTION_TOO_SMALL; } else if (IT_GENERIC == instruction_type) { if (IsMovWithDisplacement(target + preamble_bytes, cur_bytes)) { unsigned int mov_bytes = 0; if (PatchMovWithDisplacement(target + preamble_bytes, cur_bytes, preamble_stub + stub_bytes, &mov_bytes, stub_size - stub_bytes) != SIDESTEP_SUCCESS) { return SIDESTEP_UNSUPPORTED_INSTRUCTION; } stub_bytes += mov_bytes; } else { memcpy(reinterpret_cast(preamble_stub + stub_bytes), reinterpret_cast(target + preamble_bytes), cur_bytes); stub_bytes += cur_bytes; } } else { SIDESTEP_ASSERT(false && "Disassembler encountered unsupported instruction " "(either unused or unknown"); return SIDESTEP_UNSUPPORTED_INSTRUCTION; } preamble_bytes += cur_bytes; } if (NULL != bytes_needed) *bytes_needed = stub_bytes + kRequiredStubJumpBytes + required_trampoline_bytes; // Inv: cbPreamble is the number of bytes (at least 5) that we need to take // from the preamble to have whole instructions that are 5 bytes or more // in size total. The size of the stub required is cbPreamble + // kRequiredStubJumpBytes (5) + required_trampoline_bytes (0 or 13) if (stub_bytes + kRequiredStubJumpBytes + required_trampoline_bytes > stub_size) { SIDESTEP_ASSERT(false); return SIDESTEP_INSUFFICIENT_BUFFER; } // Now, make a jmp instruction to the rest of the target function (minus the // preamble bytes we moved into the stub) and copy it into our preamble-stub. // find address to jump to, relative to next address after jmp instruction #ifdef _MSC_VER #pragma warning(push) #pragma warning(disable:4244) #endif int relative_offset_to_target_rest = ((reinterpret_cast(target) + preamble_bytes) - (preamble_stub + stub_bytes + kRequiredStubJumpBytes)); #ifdef _MSC_VER #pragma warning(pop) #endif // jmp (Jump near, relative, displacement relative to next instruction) preamble_stub[stub_bytes] = ASM_JMP32REL; // copy the address memcpy(reinterpret_cast(preamble_stub + stub_bytes + 1), reinterpret_cast(&relative_offset_to_target_rest), 4); if (kIs64BitBinary && required_trampoline_bytes != 0) { // Construct the trampoline unsigned int trampoline_pos = stub_bytes + kRequiredStubJumpBytes; preamble_stub[trampoline_pos] = ASM_NOP; preamble_stub[trampoline_pos + 1] = ASM_REXW; preamble_stub[trampoline_pos + 2] = ASM_MOVRAX_IMM; memcpy(reinterpret_cast(preamble_stub + trampoline_pos + 3), reinterpret_cast(&replacement_function), sizeof(void *)); preamble_stub[trampoline_pos + 11] = ASM_JMP; preamble_stub[trampoline_pos + 12] = ASM_JMP_RAX; // Now update replacement_function to point to the trampoline replacement_function = preamble_stub + trampoline_pos; } // Inv: preamble_stub points to assembly code that will execute the // original function by first executing the first cbPreamble bytes of the // preamble, then jumping to the rest of the function. // Overwrite the first 5 bytes of the target function with a jump to our // replacement function. // (Jump near, relative, displacement relative to next instruction) target[0] = ASM_JMP32REL; // Find offset from instruction after jmp, to the replacement function. #ifdef _MSC_VER #pragma warning(push) #pragma warning(disable:4244) #endif int offset_to_replacement_function = reinterpret_cast(replacement_function) - reinterpret_cast(target) - 5; #ifdef _MSC_VER #pragma warning(pop) #endif // complete the jmp instruction memcpy(reinterpret_cast(target + 1), reinterpret_cast(&offset_to_replacement_function), 4); // Set any remaining bytes that were moved to the preamble-stub to INT3 so // as not to cause confusion (otherwise you might see some strange // instructions if you look at the disassembly, or even invalid // instructions). Also, by doing this, we will break into the debugger if // some code calls into this portion of the code. If this happens, it // means that this function cannot be patched using this patcher without // further thought. if (preamble_bytes > kRequiredTargetPatchBytes) { memset(reinterpret_cast(target + kRequiredTargetPatchBytes), ASM_INT3, preamble_bytes - kRequiredTargetPatchBytes); } // Inv: The memory pointed to by target_function now points to a relative // jump instruction that jumps over to the preamble_stub. The preamble // stub contains the first stub_size bytes of the original target // function's preamble code, followed by a relative jump back to the next // instruction after the first cbPreamble bytes. // // In 64-bit mode the memory pointed to by target_function *may* point to a // relative jump instruction that jumps to a trampoline which will then // perform an absolute jump to the replacement function. The preamble stub // still contains the original target function's preamble code, followed by a // jump back to the instructions after the first preamble bytes. // return SIDESTEP_SUCCESS; } }; // namespace sidestep gperftools-2.4/src/windows/get_mangled_names.cc0000644000000000000000000000611112440704174016655 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Author: Craig Silverstein (opensource@google.com) // When you are porting perftools to a new compiler or architecture // (win64 vs win32) for instance, you'll need to change the mangled // symbol names for operator new and friends at the top of // patch_functions.cc. This file helps you do that. // // It does this by defining these functions with the proper signature. // All you need to do is compile this file and the run dumpbin on it. // (See http://msdn.microsoft.com/en-us/library/5x49w699.aspx for more // on dumpbin). To do this in MSVC, use the MSVC commandline shell: // http://msdn.microsoft.com/en-us/library/ms235639(VS.80).aspx) // // The run: // cl /c get_mangled_names.cc // dumpbin /symbols get_mangled_names.obj // // It will print out the mangled (and associated unmangled) names of // the 8 symbols you need to put at the top of patch_functions.cc #include // for size_t #include // for nothrow_t static char m; // some dummy memory so new doesn't return NULL. void* operator new(size_t size) { return &m; } void operator delete(void* p) throw() { } void* operator new[](size_t size) { return &m; } void operator delete[](void* p) throw() { } void* operator new(size_t size, const std::nothrow_t&) throw() { return &m; } void operator delete(void* p, const std::nothrow_t&) throw() { } void* operator new[](size_t size, const std::nothrow_t&) throw() { return &m; } void operator delete[](void* p, const std::nothrow_t&) throw() { } gperftools-2.4/src/windows/override_functions.cc0000644000000000000000000000777612440704174017155 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Author: Mike Belshe // // To link tcmalloc into a EXE or DLL statically without using the patching // facility, we can take a stock libcmt and remove all the allocator functions. // When we relink the EXE/DLL with the modified libcmt and tcmalloc, a few // functions are missing. This file contains the additional overrides which // are required in the VS2005 libcmt in order to link the modified libcmt. // // See also // http://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b #include #ifndef _WIN32 # error You should only be including this file in a windows environment! #endif #ifndef WIN32_OVERRIDE_ALLOCATORS # error This file is intended for use when overriding allocators #endif #include "tcmalloc.cc" extern "C" void* _recalloc(void* p, size_t n, size_t size) { void* result = realloc(p, n * size); memset(result, 0, n * size); return result; } extern "C" void* _calloc_impl(size_t n, size_t size) { return calloc(n, size); } extern "C" size_t _msize(void* p) { return MallocExtension::instance()->GetAllocatedSize(p); } extern "C" intptr_t _get_heap_handle() { return 0; } // The CRT heap initialization stub. extern "C" int _heap_init() { // We intentionally leak this object. It lasts for the process // lifetime. Trying to teardown at _heap_term() is so late that // you can't do anything useful anyway. new TCMallocGuard(); return 1; } // The CRT heap cleanup stub. extern "C" void _heap_term() { } extern "C" int _set_new_mode(int flag) { return tc_set_new_mode(flag); } #ifndef NDEBUG #undef malloc #undef free #undef calloc int _CrtDbgReport(int, const char*, int, const char*, const char*, ...) { return 0; } int _CrtDbgReportW(int, const wchar_t*, int, const wchar_t*, const wchar_t*, ...) { return 0; } int _CrtSetReportMode(int, int) { return 0; } extern "C" void* _malloc_dbg(size_t size, int , const char*, int) { return malloc(size); } extern "C" void _free_dbg(void* ptr, int) { free(ptr); } extern "C" void* _calloc_dbg(size_t n, size_t size, int, const char*, int) { return calloc(n, size); } #endif // NDEBUG // We set this to 1 because part of the CRT uses a check of _crtheap != 0 // to test whether the CRT has been initialized. Once we've ripped out // the allocators from libcmt, we need to provide this definition so that // the rest of the CRT is still usable. extern "C" void* _crtheap = reinterpret_cast(1); gperftools-2.4/src/windows/config.h0000644000000000000000000002211312454304671014336 00000000000000/* A manual version of config.h fit for windows machines. * * Use of this source code is governed by a BSD-style license that can * be found in the LICENSE file. */ /* Sometimes we accidentally #include this config.h instead of the one in .. -- this is particularly true for msys/mingw, which uses the unix config.h but also runs code in the windows directory. */ #ifdef __MINGW32__ #include "../config.h" #define GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_ #endif #ifndef GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_ #define GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_ /* define this if you are linking tcmalloc statically and overriding the * default allocators. * For instructions on how to use this mode, see * http://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b */ #undef WIN32_OVERRIDE_ALLOCATORS /* Define to 1 if your libc has a snprintf implementation */ #undef HAVE_SNPRINTF /* Define to 1 if compiler supports __builtin_stack_pointer */ #undef HAVE_BUILTIN_STACK_POINTER /* Define to 1 if you have the header file. */ #undef HAVE_CONFLICT_SIGNAL_H /* Define to 1 if you have the header file. */ #undef HAVE_CYGWIN_SIGNAL_H /* Define to 1 if you have the declaration of `cfree', and to 0 if you don't. */ #undef HAVE_DECL_CFREE /* Define to 1 if you have the declaration of `memalign', and to 0 if you don't. */ #undef HAVE_DECL_MEMALIGN /* Define to 1 if you have the declaration of `posix_memalign', and to 0 if you don't. */ #undef HAVE_DECL_POSIX_MEMALIGN /* Define to 1 if you have the declaration of `pvalloc', and to 0 if you don't. */ #undef HAVE_DECL_PVALLOC /* Define to 1 if you have the declaration of `uname', and to 0 if you don't. */ #undef HAVE_DECL_UNAME /* Define to 1 if you have the declaration of `valloc', and to 0 if you don't. */ #undef HAVE_DECL_VALLOC /* Define to 1 if you have the header file. */ #undef HAVE_DLFCN_H /* Define to 1 if the system has the type `Elf32_Versym'. */ #undef HAVE_ELF32_VERSYM /* Define to 1 if you have the header file. */ #undef HAVE_EXECINFO_H /* Define to 1 if you have the header file. */ #undef HAVE_FCNTL_H /* Define to 1 if you have the header file. */ #undef HAVE_FEATURES_H /* Define to 1 if you have the `geteuid' function. */ #undef HAVE_GETEUID /* Define to 1 if you have the `getpagesize' function. */ #define HAVE_GETPAGESIZE 1 /* we define it in windows/port.cc */ /* Define to 1 if you have the header file. */ #undef HAVE_GLOB_H /* Define to 1 if you have the header file. */ #undef HAVE_GRP_H /* Define to 1 if you have the header file. */ #undef HAVE_INTTYPES_H /* Define to 1 if you have the header file. */ #undef HAVE_LIBUNWIND_H /* Define to 1 if you have the header file. */ #undef HAVE_LINUX_PTRACE_H /* Define to 1 if you have the header file. */ #define HAVE_MALLOC_H 1 /* Define to 1 if you have the header file. */ #undef HAVE_MALLOC_MALLOC_H /* Define to 1 if you have the header file. */ #undef HAVE_MEMORY_H /* Define to 1 if you have a working `mmap' system call. */ #undef HAVE_MMAP /* define if the compiler implements namespaces */ #define HAVE_NAMESPACES 1 /* Define to 1 if you have the header file. */ #undef HAVE_POLL_H /* define if libc has program_invocation_name */ #undef HAVE_PROGRAM_INVOCATION_NAME /* Define if you have POSIX threads libraries and header files. */ #undef HAVE_PTHREAD /* Define to 1 if you have the header file. */ #undef HAVE_PWD_H /* Define to 1 if you have the `sbrk' function. */ #undef HAVE_SBRK /* Define to 1 if you have the header file. */ #undef HAVE_SCHED_H /* Define to 1 if you have the header file. */ #undef HAVE_STDINT_H /* Define to 1 if you have the header file. */ #define HAVE_STDLIB_H 1 /* Define to 1 if you have the header file. */ #undef HAVE_STRINGS_H /* Define to 1 if you have the header file. */ #define HAVE_STRING_H 1 /* Define to 1 if the system has the type `struct mallinfo'. */ #undef HAVE_STRUCT_MALLINFO /* Define to 1 if you have the header file. */ #undef HAVE_SYS_CDEFS_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_MALLOC_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_PARAM_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_PRCTL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_RESOURCE_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SOCKET_H /* Define to 1 if you have the header file. */ #define HAVE_SYS_STAT_H 1 /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SYSCALL_H /* Define to 1 if you have the header file. */ #define HAVE_SYS_TYPES_H 1 /* is broken on redhat 7 */ #undef HAVE_SYS_UCONTEXT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_WAIT_H /* Define to 1 if compiler supports __thread */ #define HAVE_TLS 1 /* Define to 1 if you have the header file. */ #undef HAVE_UCONTEXT_H /* Define to 1 if you have the header file. */ #undef HAVE_UNISTD_H /* Define to 1 if you have the header file. */ #undef HAVE_UNWIND_H /* Define to 1 if you have the header file. */ #undef HAVE_VALGRIND_H /* define if your compiler has __attribute__ */ #undef HAVE___ATTRIBUTE__ /* Define to 1 if compiler supports __environ */ #undef HAVE___ENVIRON /* Define to 1 if the system has the type `__int64'. */ #define HAVE___INT64 1 /* prefix where we look for installed files */ #undef INSTALL_PREFIX /* Define to 1 if int32_t is equivalent to intptr_t */ #undef INT32_EQUALS_INTPTR /* Define to the sub-directory in which libtool stores uninstalled libraries. */ #undef LT_OBJDIR /* Define to 'volatile' if __malloc_hook is declared volatile */ #undef MALLOC_HOOK_MAYBE_VOLATILE /* Define to 1 if your C compiler doesn't accept -c and -o together. */ #undef NO_MINUS_C_MINUS_O /* Name of package */ #define PACKAGE "gperftools" /* Define to the address where bug reports for this package should be sent. */ #define PACKAGE_BUGREPORT "opensource@google.com" /* Define to the full name of this package. */ #define PACKAGE_NAME "gperftools" /* Define to the full name and version of this package. */ #define PACKAGE_STRING "gperftools 2.4" /* Define to the one symbol short name of this package. */ #define PACKAGE_TARNAME "gperftools" /* Define to the home page for this package. */ #undef PACKAGE_URL /* Define to the version of this package. */ #define PACKAGE_VERSION "2.4" /* How to access the PC from a struct ucontext */ #undef PC_FROM_UCONTEXT /* Always the empty-string on non-windows systems. On windows, should be "__declspec(dllexport)". This way, when we compile the dll, we export our functions/classes. It's safe to define this here because config.h is only used internally, to compile the DLL, and every DLL source file #includes "config.h" before anything else. */ #ifndef PERFTOOLS_DLL_DECL # define PERFTOOLS_IS_A_DLL 1 /* not set if you're statically linking */ # define PERFTOOLS_DLL_DECL __declspec(dllexport) # define PERFTOOLS_DLL_DECL_FOR_UNITTESTS __declspec(dllimport) #endif /* printf format code for printing a size_t and ssize_t */ #define PRIdS "Id" /* printf format code for printing a size_t and ssize_t */ #define PRIuS "Iu" /* printf format code for printing a size_t and ssize_t */ #define PRIxS "Ix" /* Mark the systems where we know it's bad if pthreads runs too early before main (before threads are initialized, presumably). */ #ifdef __FreeBSD__ #define PTHREADS_CRASHES_IF_RUN_TOO_EARLY 1 #endif /* Define to necessary symbol if this constant uses a non-standard name on your system. */ #undef PTHREAD_CREATE_JOINABLE /* Define to 1 if you have the ANSI C header files. */ #define STDC_HEADERS 1 /* the namespace where STL code like vector<> is defined */ #define STL_NAMESPACE std /* Version number of package */ #undef VERSION /* C99 says: define this to get the PRI... macros from stdint.h */ #ifndef __STDC_FORMAT_MACROS # define __STDC_FORMAT_MACROS 1 #endif /* Define to `__inline__' or `__inline' if that's what the C compiler calls it, or to nothing if 'inline' is not supported under any name. */ #ifndef __cplusplus #undef inline #endif // --------------------------------------------------------------------- // Extra stuff not found in config.h.in // This must be defined before the windows.h is included. We need at // least 0x0400 for mutex.h to have access to TryLock, and at least // 0x0501 for patch_functions.cc to have access to GetModuleHandleEx. // (This latter is an optimization we could take out if need be.) #ifndef _WIN32_WINNT # define _WIN32_WINNT 0x0501 #endif // We want to make sure not to ever try to #include heap-checker.h #define NO_HEAP_CHECK 1 // TODO(csilvers): include windows/port.h in every relevant source file instead? #include "windows/port.h" #endif /* GOOGLE_PERFTOOLS_WINDOWS_CONFIG_H_ */ gperftools-2.4/src/windows/TODO0000644000000000000000000000565612371745612013427 00000000000000* Get heap-profile-table.cc using DeleteMatchingFiles * Get heap-profile-table.cc using FillProcSelfMaps, DumpProcSelfMaps * Play around with ExperimentalGetStackTrace * Support the windows-level memory-allocation functions? See /home/build/googleclient/earth/client/tools/memorytracking/client/memorytrace/src/memorytrace.cpp /home/build/googleclient/total_recall/common/sitestep/* http://www.internals.com/articles/apispy/apispy.htm http://www.wheaty.net/APISPY32.zip * Verify /proc/xxx/maps: http://www.geocities.com/wah_java_dotnet/procmap/index.html * Figure out how to edit the executable IAT so tcmalloc.dll is loaded first * Use QueryPerformanceCounter instead of GetTickCount() (also for sparsehash) ---- More info on windows-level memory-allocation functions: C runtime malloc LocalAlloc GlobalAlloc HeapAlloc VirtualAlloc mmap stuff malloc, LocalAlloc and GlobalAlloc call HeapAlloc, which calls VirtualAlloc when needed, which calls VirtualAllocEx (the __sbrk equiv?) siggi sez: If you want to do a generic job, you probably need to preserve the semantics of all of these Win32 calls: Heap32First Heap32ListFirst Heap32ListNext Heap32Next HeapAlloc HeapCompact HeapCreate HeapCreateTagsW HeapDestroy HeapExtend HeapFree HeapLock HeapQueryInformation HeapQueryTagW HeapReAlloc HeapSetInformation HeapSize HeapSummary HeapUnlock HeapUsage HeapValidate HeapWalk kernel32.dll export functions and nt.dll export functions: http://www.shorthike.com/svn/trunk/tools_win32/dm/lib/kernel32.def http://undocumented.ntinternals.net/ You can edit the executable IAT to have the patching DLL be the first one loaded. Most complete way to intercept system calls is patch the functions (not the IAT). Microsoft has somee built-in routines for heap-checking: http://support.microsoft.com/kb/268343 ---- Itimer replacement: http://msdn2.microsoft.com/en-us/library/ms712713.aspx ---- Changes I've had to make to the project file: 0) When creating the project file, click on "no autogenerated files" --- For each project: 1) Alt-F7 -> General -> [pulldown "all configurations" ] -> Output Directory -> $(SolutionDir)$(ConfigurationName) 2) Alt-F7 -> General -> [pulldown "all configurations" ] -> Intermediate Directory -> $(ConfigurationName) --- For each .cc file: 1) Alt-F7 -> C/C++ -> General -> [pulldown "all configurations"] -> Additional Include Directives --> src/windows + src/ 2) Alt-F7 -> C/C++ -> Code Generation -> Runtime Library -> Multi-threaded, debug/release, DLL or not --- For DLL: 3) Alt-F7 -> Linker -> Input -> [pulldown "all configurations" ] -> Module Definition File -> src\windows\vc7and8.def --- For binaries depending on a DLL: 3) Right-click on project -> Project Dependencies -> [add dll] --- For static binaries (not depending on a DLL) 3) Alt-F7 -> C/C++ -> Command Line -> [pulldown "all configurations"] -> /D PERFTOOLS_DLL_DECL= gperftools-2.4/src/windows/preamble_patcher_test.cc0000644000000000000000000003356612440704174017576 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2011, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Joi Sigurdsson * Author: Scott Francis * * Unit tests for PreamblePatcher */ #include "config_for_unittests.h" #include "preamble_patcher.h" #include "mini_disassembler.h" #pragma warning(push) #pragma warning(disable:4553) #include "auto_testing_hook.h" #pragma warning(pop) #define WIN32_LEAN_AND_MEAN #include #include // Turning off all optimizations for this file, since the official build's // "Whole program optimization" seems to cause the TestPatchUsingDynamicStub // test to crash with an access violation. We debugged this and found // that the optimized access a register that is changed by a call to the hook // function. #pragma optimize("", off) // A convenience macro to avoid a lot of casting in the tests. // I tried to make this a templated function, but windows complained: // error C2782: 'sidestep::SideStepError `anonymous-namespace'::Unpatch(T,T,T *)' : template parameter 'T' is ambiguous // could be 'int (int)' // or 'int (__cdecl *)(int)' // My life isn't long enough to try to figure out how to fix this. #define UNPATCH(target_function, replacement_function, original_function_stub) \ sidestep::PreamblePatcher::Unpatch((void*)(target_function), \ (void*)(replacement_function), \ (void*)(original_function)) namespace { // Function for testing - this is what we patch // // NOTE: Because of the way the compiler optimizes this function in // release builds, we need to use a different input value every time we // call it within a function, otherwise the compiler will just reuse the // last calculated incremented value. int __declspec(noinline) IncrementNumber(int i) { #ifdef _M_X64 __int64 i2 = i + 1; return (int) i2; #else return i + 1; #endif } extern "C" int TooShortFunction(int); extern "C" int JumpShortCondFunction(int); extern "C" int JumpNearCondFunction(int); extern "C" int JumpAbsoluteFunction(int); extern "C" int CallNearRelativeFunction(int); typedef int (*IncrementingFunc)(int); IncrementingFunc original_function = NULL; int HookIncrementNumber(int i) { SIDESTEP_ASSERT(original_function != NULL); int incremented_once = original_function(i); return incremented_once + 1; } // For the AutoTestingHook test, we can't use original_function, because // all that is encapsulated. // This function "increments" by 10, just to set it apart from the other // functions. int __declspec(noinline) AutoHookIncrementNumber(int i) { return i + 10; } }; // namespace namespace sidestep { bool TestDisassembler() { unsigned int instruction_size = 0; sidestep::MiniDisassembler disassembler; void * target = reinterpret_cast(IncrementNumber); void * new_target = PreamblePatcher::ResolveTarget(target); if (target != new_target) target = new_target; while (1) { sidestep::InstructionType instructionType = disassembler.Disassemble( reinterpret_cast(target) + instruction_size, instruction_size); if (sidestep::IT_RETURN == instructionType) { return true; } } } bool TestPatchWithLongJump() { original_function = NULL; void *p = ::VirtualAlloc(reinterpret_cast(0x0000020000000000), 4096, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE); SIDESTEP_EXPECT_TRUE(p != NULL); memset(p, 0xcc, 4096); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == sidestep::PreamblePatcher::Patch(IncrementNumber, (IncrementingFunc) p, &original_function)); SIDESTEP_ASSERT((*original_function)(1) == 2); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == UNPATCH(IncrementNumber, (IncrementingFunc)p, original_function)); ::VirtualFree(p, 0, MEM_RELEASE); return true; } bool TestPatchWithPreambleShortCondJump() { original_function = NULL; SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == sidestep::PreamblePatcher::Patch(JumpShortCondFunction, HookIncrementNumber, &original_function)); (*original_function)(1); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == UNPATCH(JumpShortCondFunction, (void*)HookIncrementNumber, original_function)); return true; } bool TestPatchWithPreambleNearRelativeCondJump() { original_function = NULL; SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == sidestep::PreamblePatcher::Patch(JumpNearCondFunction, HookIncrementNumber, &original_function)); (*original_function)(0); (*original_function)(1); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == UNPATCH(JumpNearCondFunction, HookIncrementNumber, original_function)); return true; } bool TestPatchWithPreambleAbsoluteJump() { original_function = NULL; SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == sidestep::PreamblePatcher::Patch(JumpAbsoluteFunction, HookIncrementNumber, &original_function)); (*original_function)(0); (*original_function)(1); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == UNPATCH(JumpAbsoluteFunction, HookIncrementNumber, original_function)); return true; } bool TestPatchWithPreambleNearRelativeCall() { original_function = NULL; SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == sidestep::PreamblePatcher::Patch( CallNearRelativeFunction, HookIncrementNumber, &original_function)); (*original_function)(0); (*original_function)(1); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == UNPATCH(CallNearRelativeFunction, HookIncrementNumber, original_function)); return true; } bool TestPatchUsingDynamicStub() { original_function = NULL; SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 2); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == sidestep::PreamblePatcher::Patch(IncrementNumber, HookIncrementNumber, &original_function)); SIDESTEP_EXPECT_TRUE(original_function); SIDESTEP_EXPECT_TRUE(IncrementNumber(2) == 4); SIDESTEP_EXPECT_TRUE(original_function(3) == 4); // Clearbox test to see that the function has been patched. sidestep::MiniDisassembler disassembler; unsigned int instruction_size = 0; SIDESTEP_EXPECT_TRUE(sidestep::IT_JUMP == disassembler.Disassemble( reinterpret_cast(IncrementNumber), instruction_size)); // Since we patched IncrementNumber, its first statement is a // jmp to the hook function. So verify that we now can not patch // IncrementNumber because it starts with a jump. #if 0 IncrementingFunc dummy = NULL; // TODO(joi@chromium.org): restore this test once flag is added to // disable JMP following SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_JUMP_INSTRUCTION == sidestep::PreamblePatcher::Patch(IncrementNumber, HookIncrementNumber, &dummy)); // This test disabled because code in preamble_patcher_with_stub.cc // asserts before returning the error code -- so there is no way // to get an error code here, in debug build. dummy = NULL; SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_FUNCTION_TOO_SMALL == sidestep::PreamblePatcher::Patch(TooShortFunction, HookIncrementNumber, &dummy)); #endif SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == UNPATCH(IncrementNumber, HookIncrementNumber, original_function)); return true; } bool PatchThenUnpatch() { original_function = NULL; SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == sidestep::PreamblePatcher::Patch(IncrementNumber, HookIncrementNumber, &original_function)); SIDESTEP_EXPECT_TRUE(original_function); SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 3); SIDESTEP_EXPECT_TRUE(original_function(2) == 3); SIDESTEP_EXPECT_TRUE(sidestep::SIDESTEP_SUCCESS == UNPATCH(IncrementNumber, HookIncrementNumber, original_function)); original_function = NULL; SIDESTEP_EXPECT_TRUE(IncrementNumber(3) == 4); return true; } bool AutoTestingHookTest() { SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 2); // Inner scope, so we can test what happens when the AutoTestingHook // goes out of scope { AutoTestingHook hook = MakeTestingHook(IncrementNumber, AutoHookIncrementNumber); (void) hook; SIDESTEP_EXPECT_TRUE(IncrementNumber(2) == 12); } SIDESTEP_EXPECT_TRUE(IncrementNumber(3) == 4); return true; } bool AutoTestingHookInContainerTest() { SIDESTEP_EXPECT_TRUE(IncrementNumber(1) == 2); // Inner scope, so we can test what happens when the AutoTestingHook // goes out of scope { AutoTestingHookHolder hook(MakeTestingHookHolder(IncrementNumber, AutoHookIncrementNumber)); (void) hook; SIDESTEP_EXPECT_TRUE(IncrementNumber(2) == 12); } SIDESTEP_EXPECT_TRUE(IncrementNumber(3) == 4); return true; } bool TestPreambleAllocation() { __int64 diff = 0; void* p1 = reinterpret_cast(0x110000000); void* p2 = reinterpret_cast(0x810000000); unsigned char* b1 = PreamblePatcher::AllocPreambleBlockNear(p1); SIDESTEP_EXPECT_TRUE(b1 != NULL); diff = reinterpret_cast<__int64>(p1) - reinterpret_cast<__int64>(b1); // Ensure blocks are within 2GB SIDESTEP_EXPECT_TRUE(diff <= INT_MAX && diff >= INT_MIN); unsigned char* b2 = PreamblePatcher::AllocPreambleBlockNear(p2); SIDESTEP_EXPECT_TRUE(b2 != NULL); diff = reinterpret_cast<__int64>(p2) - reinterpret_cast<__int64>(b2); SIDESTEP_EXPECT_TRUE(diff <= INT_MAX && diff >= INT_MIN); // Ensure we're reusing free blocks unsigned char* b3 = b1; unsigned char* b4 = b2; PreamblePatcher::FreePreambleBlock(b1); PreamblePatcher::FreePreambleBlock(b2); b1 = PreamblePatcher::AllocPreambleBlockNear(p1); SIDESTEP_EXPECT_TRUE(b1 == b3); b2 = PreamblePatcher::AllocPreambleBlockNear(p2); SIDESTEP_EXPECT_TRUE(b2 == b4); PreamblePatcher::FreePreambleBlock(b1); PreamblePatcher::FreePreambleBlock(b2); return true; } bool UnitTests() { return TestPatchWithPreambleNearRelativeCall() && TestPatchWithPreambleAbsoluteJump() && TestPatchWithPreambleNearRelativeCondJump() && TestPatchWithPreambleShortCondJump() && TestDisassembler() && TestPatchWithLongJump() && TestPatchUsingDynamicStub() && PatchThenUnpatch() && AutoTestingHookTest() && AutoTestingHookInContainerTest() && TestPreambleAllocation(); } }; // namespace sidestep int safe_vsnprintf(char *str, size_t size, const char *format, va_list ap) { if (size == 0) // not even room for a \0? return -1; // not what C99 says to do, but what windows does str[size-1] = '\0'; return _vsnprintf(str, size-1, format, ap); } int _tmain(int argc, _TCHAR* argv[]) { bool ret = sidestep::UnitTests(); printf("%s\n", ret ? "PASS" : "FAIL"); return ret ? 0 : -1; } #pragma optimize("", on) gperftools-2.4/src/windows/shortproc.asm0000644000000000000000000000714612372001603015442 00000000000000; Copyright (c) 2011, Google Inc. ; All rights reserved. ; ; Redistribution and use in source and binary forms, with or without ; modification, are permitted provided that the following conditions are ; met: ; ; * Redistributions of source code must retain the above copyright ; notice, this list of conditions and the following disclaimer. ; * Redistributions in binary form must reproduce the above ; copyright notice, this list of conditions and the following disclaimer ; in the documentation and/or other materials provided with the ; distribution. ; * Neither the name of Google Inc. nor the names of its ; contributors may be used to endorse or promote products derived from ; this software without specific prior written permission. ; ; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ; ; --- ; Author: Scott Francis ; ; Unit tests for PreamblePatcher .MODEL small .CODE TooShortFunction PROC ret TooShortFunction ENDP JumpShortCondFunction PROC test cl, 1 jnz jumpspot int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 int 3 jumpspot: nop nop nop nop mov rax, 1 ret JumpShortCondFunction ENDP JumpNearCondFunction PROC test cl, 1 jnz jumpspot mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H jumpspot: nop nop mov rax, 1 ret JumpNearCondFunction ENDP JumpAbsoluteFunction PROC test cl, 1 jmp jumpspot mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H jumpspot: nop nop mov rax, 1 ret JumpAbsoluteFunction ENDP CallNearRelativeFunction PROC test cl, 1 call TooShortFunction mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H mov rdx, 0ffff1111H nop nop nop ret CallNearRelativeFunction ENDP END gperftools-2.4/src/windows/auto_testing_hook.h0000644000000000000000000001411412440704174016615 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2010 The Chromium Authors. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // Utility for using SideStep with unit tests. #ifndef CEEE_TESTING_SIDESTEP_AUTO_TESTING_HOOK_H_ #define CEEE_TESTING_SIDESTEP_AUTO_TESTING_HOOK_H_ #include "base/basictypes.h" #include "base/logging.h" #include "preamble_patcher.h" #define SIDESTEP_CHK(x) CHECK(x) #define SIDESTEP_EXPECT_TRUE(x) SIDESTEP_CHK(x) namespace sidestep { // Same trick as common/scope_cleanup.h ScopeGuardImplBase class AutoTestingHookBase { public: virtual ~AutoTestingHookBase() {} }; // This is the typedef you normally use for the class, e.g. // // AutoTestingHook hook = MakeTestingHook(TargetFunc, HookTargetFunc); // // The 'hook' variable will then be destroyed when it goes out of scope. // // NOTE: You must not hold this type as a member of another class. Its // destructor will not get called. typedef const AutoTestingHookBase& AutoTestingHook; // This is the class you must use when holding a hook as a member of another // class, e.g. // // public: // AutoTestingHookHolder holder_; // MyClass() : my_hook_holder(MakeTestingHookHolder(Target, Hook)) {} class AutoTestingHookHolder { public: explicit AutoTestingHookHolder(AutoTestingHookBase* hook) : hook_(hook) {} ~AutoTestingHookHolder() { delete hook_; } private: AutoTestingHookHolder() {} // disallow AutoTestingHookBase* hook_; }; // This class helps patch a function, then unpatch it when the object exits // scope, and also maintains the pointer to the original function stub. // // To enable use of the class without having to explicitly provide the // type of the function pointers (and instead only providing it // implicitly) we use the same trick as ScopeGuard (see // common/scope_cleanup.h) uses, so to create a hook you use the MakeHook // function rather than a constructor. // // NOTE: This function is only safe for e.g. unit tests and _not_ for // production code. See PreamblePatcher class for details. template class AutoTestingHookImpl : public AutoTestingHookBase { public: static AutoTestingHookImpl MakeTestingHook(T target_function, T replacement_function, bool do_it) { return AutoTestingHookImpl(target_function, replacement_function, do_it); } static AutoTestingHookImpl* MakeTestingHookHolder(T target_function, T replacement_function, bool do_it) { return new AutoTestingHookImpl(target_function, replacement_function, do_it); } ~AutoTestingHookImpl() { if (did_it_) { SIDESTEP_CHK(SIDESTEP_SUCCESS == PreamblePatcher::Unpatch( (void*)target_function_, (void*)replacement_function_, (void*)original_function_)); } } // Returns a pointer to the original function. To use this method you will // have to explicitly create an AutoTestingHookImpl of the specific // function pointer type (i.e. not use the AutoTestingHook typedef). T original_function() { return original_function_; } private: AutoTestingHookImpl(T target_function, T replacement_function, bool do_it) : target_function_(target_function), original_function_(NULL), replacement_function_(replacement_function), did_it_(do_it) { if (do_it) { SIDESTEP_CHK(SIDESTEP_SUCCESS == PreamblePatcher::Patch(target_function, replacement_function, &original_function_)); } } T target_function_; // always valid T original_function_; // always valid T replacement_function_; // always valid bool did_it_; // Remember if we did it or not... }; template inline AutoTestingHookImpl MakeTestingHook(T target, T replacement, bool do_it) { return AutoTestingHookImpl::MakeTestingHook(target, replacement, do_it); } template inline AutoTestingHookImpl MakeTestingHook(T target, T replacement) { return AutoTestingHookImpl::MakeTestingHook(target, replacement, true); } template inline AutoTestingHookImpl* MakeTestingHookHolder(T target, T replacement) { return AutoTestingHookImpl::MakeTestingHookHolder(target, replacement, true); } }; // namespace sidestep #endif // CEEE_TESTING_SIDESTEP_AUTO_TESTING_HOOK_H_ gperftools-2.4/src/windows/nm-pdb.c0000644000000000000000000002117512372001603014234 00000000000000/* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: David Vitek * * Dump function addresses using Microsoft debug symbols. This works * on PDB files. Note that this program will download symbols to * c:\websymbols without asking. */ #define WIN32_LEAN_AND_MEAN #define _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_DEPRECATE #include #include #include // for _strdup #include #include // Unfortunately, there is no versioning info in dbghelp.h so I can // tell whether it has an old-style (circa VC7.1) IMAGEHLP_MODULE64 // struct, with only a few fields, or a new-style (circa VC8) // IMAGEHLP_MODULE64, with lots of fields. These fields are just used // for debugging, so it's fine to just assume the smaller struct, but // for most people, using a modern MSVC, the full struct is available. // If you are one of those people and would like this extra debugging // info, you can uncomment the line below. //#define VC8_OR_ABOVE #define SEARCH_CAP (1024*1024) #define WEBSYM "SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols" typedef struct { char *name; ULONG64 addr; ULONG flags; } SYM; typedef struct { ULONG64 module_base; SYM *syms; DWORD syms_len; DWORD syms_cap; } SYM_CONTEXT; static int sym_cmp(const void *_s1, const void *_s2) { const SYM *s1 = (const SYM *)_s1; const SYM *s2 = (const SYM *)_s2; if (s1->addr < s2->addr) return -1; if (s1->addr > s2->addr) return 1; return 0; } static BOOL CALLBACK EnumSymProc(PSYMBOL_INFO symbol_info, ULONG symbol_size, PVOID user_context) { SYM_CONTEXT *ctx = (SYM_CONTEXT*)user_context; if (symbol_info->Address < ctx->module_base || (symbol_info->Flags & SYMFLAG_TLSREL)) { return TRUE; } if (ctx->syms_len == ctx->syms_cap) { if (!ctx->syms_cap) ctx->syms_cap++; ctx->syms_cap *= 2; ctx->syms = realloc(ctx->syms, sizeof(ctx->syms[0]) * ctx->syms_cap); } ctx->syms[ctx->syms_len].name = _strdup(symbol_info->Name); ctx->syms[ctx->syms_len].addr = symbol_info->Address; ctx->syms[ctx->syms_len].flags = symbol_info->Flags; ctx->syms_len++; return TRUE; } static void MaybePrint(const char* var, const char* description) { if (var[0]) printf("%s: %s\n", description, var); } static void PrintAvailability(BOOL var, const char *description) { printf("s: %s\n", description, (var ? "Available" : "Not available")); } static void ShowSymbolInfo(HANDLE process, ULONG64 module_base) { /* Get module information. */ IMAGEHLP_MODULE64 module_info; BOOL getmoduleinfo_rv; printf("Load Address: %I64x\n", module_base); memset(&module_info, 0, sizeof(module_info)); module_info.SizeOfStruct = sizeof(module_info); getmoduleinfo_rv = SymGetModuleInfo64(process, module_base, &module_info); if (!getmoduleinfo_rv) { printf("Error: SymGetModuleInfo64() failed. Error code: %u\n", GetLastError()); return; } /* Display information about symbols, based on kind of symbol. */ switch (module_info.SymType) { case SymNone: printf(("No symbols available for the module.\n")); break; case SymExport: printf(("Loaded symbols: Exports\n")); break; case SymCoff: printf(("Loaded symbols: COFF\n")); break; case SymCv: printf(("Loaded symbols: CodeView\n")); break; case SymSym: printf(("Loaded symbols: SYM\n")); break; case SymVirtual: printf(("Loaded symbols: Virtual\n")); break; case SymPdb: printf(("Loaded symbols: PDB\n")); break; case SymDia: printf(("Loaded symbols: DIA\n")); break; case SymDeferred: printf(("Loaded symbols: Deferred\n")); /* not actually loaded */ break; default: printf(("Loaded symbols: Unknown format.\n")); break; } MaybePrint("Image name", module_info.ImageName); MaybePrint("Loaded image name", module_info.LoadedImageName); #ifdef VC8_OR_ABOVE /* TODO(csilvers): figure out how to tell */ MaybePrint("PDB file name", module_info.LoadedPdbName); if (module_info.PdbUnmatched || module_info.DbgUnmatched) { /* This can only happen if the debug information is contained in a * separate file (.DBG or .PDB) */ printf(("Warning: Unmatched symbols.\n")); } #endif /* Contents */ #ifdef VC8_OR_ABOVE /* TODO(csilvers): figure out how to tell */ PrintAvailability("Line numbers", module_info.LineNumbers); PrintAvailability("Global symbols", module_info.GlobalSymbols); PrintAvailability("Type information", module_info.TypeInfo); #endif } void usage() { fprintf(stderr, "usage: nm-pdb [-C|--demangle] \n"); } int main(int argc, char *argv[]) { DWORD error; HANDLE process; ULONG64 module_base; SYM_CONTEXT ctx; int i; char* search; char* filename = NULL; int rv = 0; /* We may add SYMOPT_UNDNAME if --demangle is specified: */ DWORD symopts = SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG; for (i = 1; i < argc; i++) { if (strcmp(argv[i], "--demangle") == 0 || strcmp(argv[i], "-C") == 0) { symopts |= SYMOPT_UNDNAME; } else if (strcmp(argv[i], "--help") == 0) { usage(); exit(0); } else { break; } } if (i != argc - 1) { usage(); exit(1); } filename = argv[i]; process = GetCurrentProcess(); if (!SymInitialize(process, NULL, FALSE)) { error = GetLastError(); fprintf(stderr, "SymInitialize returned error : %d\n", error); return 1; } search = malloc(SEARCH_CAP); if (SymGetSearchPath(process, search, SEARCH_CAP)) { if (strlen(search) + sizeof(";" WEBSYM) > SEARCH_CAP) { fprintf(stderr, "Search path too long\n"); SymCleanup(process); return 1; } strcat(search, ";" WEBSYM); } else { error = GetLastError(); fprintf(stderr, "SymGetSearchPath returned error : %d\n", error); rv = 1; /* An error, but not a fatal one */ strcpy(search, WEBSYM); /* Use a default value */ } if (!SymSetSearchPath(process, search)) { error = GetLastError(); fprintf(stderr, "SymSetSearchPath returned error : %d\n", error); rv = 1; /* An error, but not a fatal one */ } SymSetOptions(symopts); module_base = SymLoadModuleEx(process, NULL, filename, NULL, 0, 0, NULL, 0); if (!module_base) { /* SymLoadModuleEx failed */ error = GetLastError(); fprintf(stderr, "SymLoadModuleEx returned error : %d for %s\n", error, filename); SymCleanup(process); return 1; } ShowSymbolInfo(process, module_base); memset(&ctx, 0, sizeof(ctx)); ctx.module_base = module_base; if (!SymEnumSymbols(process, module_base, NULL, EnumSymProc, &ctx)) { error = GetLastError(); fprintf(stderr, "SymEnumSymbols returned error: %d\n", error); rv = 1; } else { DWORD j; qsort(ctx.syms, ctx.syms_len, sizeof(ctx.syms[0]), sym_cmp); for (j = 0; j < ctx.syms_len; j++) { printf("%016I64x X %s\n", ctx.syms[j].addr, ctx.syms[j].name); } /* In a perfect world, maybe we'd clean up ctx's memory? */ } SymUnloadModule64(process, module_base); SymCleanup(process); return rv; } gperftools-2.4/src/windows/addr2line-pdb.c0000644000000000000000000001320412372001603015460 00000000000000/* Copyright (c) 2008, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: David Vitek * * Dump function addresses using Microsoft debug symbols. This works * on PDB files. Note that this program will download symbols to * c:\websymbols without asking. */ #define WIN32_LEAN_AND_MEAN #define _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_DEPRECATE #include #include #include #include #define SEARCH_CAP (1024*1024) #define WEBSYM "SRV*c:\\websymbols*http://msdl.microsoft.com/download/symbols" void usage() { fprintf(stderr, "usage: " "addr2line-pdb [-f|--functions] [-C|--demangle] [-e filename]\n"); fprintf(stderr, "(Then list the hex addresses on stdin, one per line)\n"); } int main(int argc, char *argv[]) { DWORD error; HANDLE process; ULONG64 module_base; int i; char* search; char buf[256]; /* Enough to hold one hex address, I trust! */ int rv = 0; /* We may add SYMOPT_UNDNAME if --demangle is specified: */ DWORD symopts = SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG | SYMOPT_LOAD_LINES; char* filename = "a.out"; /* The default if -e isn't specified */ int print_function_name = 0; /* Set to 1 if -f is specified */ for (i = 1; i < argc; i++) { if (strcmp(argv[i], "--functions") == 0 || strcmp(argv[i], "-f") == 0) { print_function_name = 1; } else if (strcmp(argv[i], "--demangle") == 0 || strcmp(argv[i], "-C") == 0) { symopts |= SYMOPT_UNDNAME; } else if (strcmp(argv[i], "-e") == 0) { if (i + 1 >= argc) { fprintf(stderr, "FATAL ERROR: -e must be followed by a filename\n"); return 1; } filename = argv[i+1]; i++; /* to skip over filename too */ } else if (strcmp(argv[i], "--help") == 0) { usage(); exit(0); } else { usage(); exit(1); } } process = GetCurrentProcess(); if (!SymInitialize(process, NULL, FALSE)) { error = GetLastError(); fprintf(stderr, "SymInitialize returned error : %d\n", error); return 1; } search = malloc(SEARCH_CAP); if (SymGetSearchPath(process, search, SEARCH_CAP)) { if (strlen(search) + sizeof(";" WEBSYM) > SEARCH_CAP) { fprintf(stderr, "Search path too long\n"); SymCleanup(process); return 1; } strcat(search, ";" WEBSYM); } else { error = GetLastError(); fprintf(stderr, "SymGetSearchPath returned error : %d\n", error); rv = 1; /* An error, but not a fatal one */ strcpy(search, WEBSYM); /* Use a default value */ } if (!SymSetSearchPath(process, search)) { error = GetLastError(); fprintf(stderr, "SymSetSearchPath returned error : %d\n", error); rv = 1; /* An error, but not a fatal one */ } SymSetOptions(symopts); module_base = SymLoadModuleEx(process, NULL, filename, NULL, 0, 0, NULL, 0); if (!module_base) { /* SymLoadModuleEx failed */ error = GetLastError(); fprintf(stderr, "SymLoadModuleEx returned error : %d for %s\n", error, filename); SymCleanup(process); return 1; } buf[sizeof(buf)-1] = '\0'; /* Just to be safe */ while (fgets(buf, sizeof(buf)-1, stdin)) { /* GNU addr2line seems to just do a strtol and ignore any * weird characters it gets, so we will too. */ unsigned __int64 addr = _strtoui64(buf, NULL, 16); ULONG64 buffer[(sizeof(SYMBOL_INFO) + MAX_SYM_NAME*sizeof(TCHAR) + sizeof(ULONG64) - 1) / sizeof(ULONG64)]; PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer; IMAGEHLP_LINE64 line; DWORD dummy; pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO); pSymbol->MaxNameLen = MAX_SYM_NAME; if (print_function_name) { if (SymFromAddr(process, (DWORD64)addr, NULL, pSymbol)) { printf("%s\n", pSymbol->Name); } else { printf("??\n"); } } line.SizeOfStruct = sizeof(IMAGEHLP_LINE64); if (SymGetLineFromAddr64(process, (DWORD64)addr, &dummy, &line)) { printf("%s:%d\n", line.FileName, (int)line.LineNumber); } else { printf("??:0\n"); } } SymUnloadModule64(process, module_base); SymCleanup(process); return rv; } gperftools-2.4/src/config.h.in0000644000000000000000000002031612454304621013247 00000000000000/* src/config.h.in. Generated from configure.ac by autoheader. */ #ifndef GPERFTOOLS_CONFIG_H_ #define GPERFTOOLS_CONFIG_H_ /* Define to 1 if compiler supports __builtin_expect */ #undef HAVE_BUILTIN_EXPECT /* Define to 1 if compiler supports __builtin_stack_pointer */ #undef HAVE_BUILTIN_STACK_POINTER /* Define to 1 if you have the header file. */ #undef HAVE_CONFLICT_SIGNAL_H /* Define to 1 if you have the header file. */ #undef HAVE_CYGWIN_SIGNAL_H /* Define to 1 if you have the declaration of `backtrace', and to 0 if you don't. */ #undef HAVE_DECL_BACKTRACE /* Define to 1 if you have the declaration of `cfree', and to 0 if you don't. */ #undef HAVE_DECL_CFREE /* Define to 1 if you have the declaration of `memalign', and to 0 if you don't. */ #undef HAVE_DECL_MEMALIGN /* Define to 1 if you have the declaration of `nanosleep', and to 0 if you don't. */ #undef HAVE_DECL_NANOSLEEP /* Define to 1 if you have the declaration of `posix_memalign', and to 0 if you don't. */ #undef HAVE_DECL_POSIX_MEMALIGN /* Define to 1 if you have the declaration of `pvalloc', and to 0 if you don't. */ #undef HAVE_DECL_PVALLOC /* Define to 1 if you have the declaration of `sleep', and to 0 if you don't. */ #undef HAVE_DECL_SLEEP /* Define to 1 if you have the declaration of `uname', and to 0 if you don't. */ #undef HAVE_DECL_UNAME /* Define to 1 if you have the declaration of `valloc', and to 0 if you don't. */ #undef HAVE_DECL_VALLOC /* Define to 1 if you have the header file. */ #undef HAVE_DLFCN_H /* Define to 1 if the system has the type `Elf32_Versym'. */ #undef HAVE_ELF32_VERSYM /* Define to 1 if you have the header file. */ #undef HAVE_EXECINFO_H /* Define to 1 if you have the header file. */ #undef HAVE_FCNTL_H /* Define to 1 if you have the header file. */ #undef HAVE_FEATURES_H /* Define to 1 if you have the `fork' function. */ #undef HAVE_FORK /* Define to 1 if you have the `geteuid' function. */ #undef HAVE_GETEUID /* Define to 1 if you have the `getpagesize' function. */ #undef HAVE_GETPAGESIZE /* Define to 1 if you have the header file. */ #undef HAVE_GLOB_H /* Define to 1 if you have the header file. */ #undef HAVE_GRP_H /* Define to 1 if you have the header file. */ #undef HAVE_INTTYPES_H /* Define to 1 if you have the header file. */ #undef HAVE_LIBUNWIND_H /* Define to 1 if you have the header file. */ #undef HAVE_LINUX_PTRACE_H /* Define if this is Linux that has SIGEV_THREAD_ID */ #undef HAVE_LINUX_SIGEV_THREAD_ID /* Define to 1 if you have the header file. */ #undef HAVE_MALLOC_H /* Define to 1 if you have the header file. */ #undef HAVE_MALLOC_MALLOC_H /* Define to 1 if you have the header file. */ #undef HAVE_MEMORY_H /* Define to 1 if you have a working `mmap' system call. */ #undef HAVE_MMAP /* define if the compiler implements namespaces */ #undef HAVE_NAMESPACES /* Define to 1 if you have the header file. */ #undef HAVE_POLL_H /* define if libc has program_invocation_name */ #undef HAVE_PROGRAM_INVOCATION_NAME /* Define if you have POSIX threads libraries and header files. */ #undef HAVE_PTHREAD /* defined to 1 if pthread symbols are exposed even without include pthread.h */ #undef HAVE_PTHREAD_DESPITE_ASKING_FOR /* Define to 1 if you have the header file. */ #undef HAVE_PWD_H /* Define to 1 if you have the `sbrk' function. */ #undef HAVE_SBRK /* Define to 1 if you have the header file. */ #undef HAVE_SCHED_H /* Define to 1 if you have the header file. */ #undef HAVE_STDINT_H /* Define to 1 if you have the header file. */ #undef HAVE_STDLIB_H /* Define to 1 if you have the header file. */ #undef HAVE_STRINGS_H /* Define to 1 if you have the header file. */ #undef HAVE_STRING_H /* Define to 1 if the system has the type `struct mallinfo'. */ #undef HAVE_STRUCT_MALLINFO /* Define to 1 if you have the header file. */ #undef HAVE_SYS_CDEFS_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_MALLOC_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_PARAM_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_PRCTL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_RESOURCE_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SOCKET_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_STAT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SYSCALL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_TYPES_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_UCONTEXT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_WAIT_H /* Define to 1 if compiler supports __thread */ #undef HAVE_TLS /* Define to 1 if you have the header file. */ #undef HAVE_UCONTEXT_H /* Define to 1 if you have the header file. */ #undef HAVE_UNISTD_H /* Define to 1 if you have the header file. */ #undef HAVE_UNWIND_H /* Define to 1 if you have the header file. */ #undef HAVE_VALGRIND_H /* define if your compiler has __attribute__ */ #undef HAVE___ATTRIBUTE__ /* Define to 1 if compiler supports __environ */ #undef HAVE___ENVIRON /* Define to 1 if the system has the type `__int64'. */ #undef HAVE___INT64 /* prefix where we look for installed files */ #undef INSTALL_PREFIX /* Define to 1 if int32_t is equivalent to intptr_t */ #undef INT32_EQUALS_INTPTR /* Define to the sub-directory in which libtool stores uninstalled libraries. */ #undef LT_OBJDIR /* Define to 'volatile' if __malloc_hook is declared volatile */ #undef MALLOC_HOOK_MAYBE_VOLATILE /* Name of package */ #undef PACKAGE /* Define to the address where bug reports for this package should be sent. */ #undef PACKAGE_BUGREPORT /* Define to the full name of this package. */ #undef PACKAGE_NAME /* Define to the full name and version of this package. */ #undef PACKAGE_STRING /* Define to the one symbol short name of this package. */ #undef PACKAGE_TARNAME /* Define to the home page for this package. */ #undef PACKAGE_URL /* Define to the version of this package. */ #undef PACKAGE_VERSION /* How to access the PC from a struct ucontext */ #undef PC_FROM_UCONTEXT /* Always the empty-string on non-windows systems. On windows, should be "__declspec(dllexport)". This way, when we compile the dll, we export our functions/classes. It's safe to define this here because config.h is only used internally, to compile the DLL, and every DLL source file #includes "config.h" before anything else. */ #undef PERFTOOLS_DLL_DECL /* printf format code for printing a size_t and ssize_t */ #undef PRIdS /* printf format code for printing a size_t and ssize_t */ #undef PRIuS /* printf format code for printing a size_t and ssize_t */ #undef PRIxS /* Mark the systems where we know it's bad if pthreads runs too early before main (before threads are initialized, presumably). */ #ifdef __FreeBSD__ #define PTHREADS_CRASHES_IF_RUN_TOO_EARLY 1 #endif /* Define to necessary symbol if this constant uses a non-standard name on your system. */ #undef PTHREAD_CREATE_JOINABLE /* Define to 1 if you have the ANSI C header files. */ #undef STDC_HEADERS /* the namespace where STL code like vector<> is defined */ #undef STL_NAMESPACE /* Define 32K of internal pages size for tcmalloc */ #undef TCMALLOC_32K_PAGES /* Define 64K of internal pages size for tcmalloc */ #undef TCMALLOC_64K_PAGES /* Define 8 bytes of allocation alignment for tcmalloc */ #undef TCMALLOC_ALIGN_8BYTES /* Version number of package */ #undef VERSION /* C99 says: define this to get the PRI... macros from stdint.h */ #ifndef __STDC_FORMAT_MACROS # define __STDC_FORMAT_MACROS 1 #endif /* Define to `__inline__' or `__inline' if that's what the C compiler calls it, or to nothing if 'inline' is not supported under any name. */ #ifndef __cplusplus #undef inline #endif #ifdef __MINGW32__ #include "windows/mingw.h" #endif #endif /* #ifndef GPERFTOOLS_CONFIG_H_ */ gperftools-2.4/src/maybe_threads.h0000644000000000000000000000465412440704174014215 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Paul Menage //------------------------------------------------------------------- // Some wrappers for pthread functions so that we can be LD_PRELOADed // against non-pthreads apps. //------------------------------------------------------------------- #ifndef GOOGLE_MAYBE_THREADS_H_ #define GOOGLE_MAYBE_THREADS_H_ #ifdef HAVE_PTHREAD #include #endif int perftools_pthread_key_create(pthread_key_t *key, void (*destr_function) (void *)); int perftools_pthread_key_delete(pthread_key_t key); void *perftools_pthread_getspecific(pthread_key_t key); int perftools_pthread_setspecific(pthread_key_t key, void *val); int perftools_pthread_once(pthread_once_t *ctl, void (*init_routine) (void)); #endif /* GOOGLE_MAYBE_THREADS_H_ */ gperftools-2.4/src/maybe_threads.cc0000644000000000000000000001305312440704174014344 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Paul Menage // // Some wrappers for pthread functions so that we can be LD_PRELOADed // against non-pthreads apps. // // This module will behave very strangely if some pthreads functions // exist and others don't. #include "config.h" #include #include // for memcmp #include // for __isthreaded on FreeBSD // We don't actually need strings. But including this header seems to // stop the compiler trying to short-circuit our pthreads existence // tests and claiming that the address of a function is always // non-zero. I have no idea why ... #include #include "maybe_threads.h" #include "base/basictypes.h" // __THROW is defined in glibc systems. It means, counter-intuitively, // "This function will never throw an exception." It's an optional // optimization tool, but we may need to use it to match glibc prototypes. #ifndef __THROW // I guess we're not on a glibc system # define __THROW // __THROW is just an optimization, so ok to make it "" #endif // These are the methods we're going to conditionally include. extern "C" { int pthread_key_create (pthread_key_t*, void (*)(void*)) __THROW ATTRIBUTE_WEAK; int pthread_key_delete (pthread_key_t) __THROW ATTRIBUTE_WEAK; void *pthread_getspecific(pthread_key_t) __THROW ATTRIBUTE_WEAK; int pthread_setspecific(pthread_key_t, const void*) __THROW ATTRIBUTE_WEAK; int pthread_once(pthread_once_t *, void (*)(void)) ATTRIBUTE_WEAK; } #define MAX_PERTHREAD_VALS 16 static void *perftools_pthread_specific_vals[MAX_PERTHREAD_VALS]; static int next_key; // NOTE: it's similar to bitcast defined in basic_types.h with // exception of ignoring sizes mismatch template static T2 memcpy_cast(const T1 &input) { T2 output; size_t s = sizeof(input); if (sizeof(output) < s) { s = sizeof(output); } memcpy(&output, &input, s); return output; } int perftools_pthread_key_create(pthread_key_t *key, void (*destr_function) (void *)) { if (pthread_key_create) { return pthread_key_create(key, destr_function); } else { assert(next_key < MAX_PERTHREAD_VALS); *key = memcpy_cast(next_key++); return 0; } } int perftools_pthread_key_delete(pthread_key_t key) { if (pthread_key_delete) { return pthread_key_delete(key); } else { return 0; } } void *perftools_pthread_getspecific(pthread_key_t key) { if (pthread_getspecific) { return pthread_getspecific(key); } else { return perftools_pthread_specific_vals[memcpy_cast(key)]; } } int perftools_pthread_setspecific(pthread_key_t key, void *val) { if (pthread_setspecific) { return pthread_setspecific(key, val); } else { perftools_pthread_specific_vals[memcpy_cast(key)] = val; return 0; } } static pthread_once_t pthread_once_init = PTHREAD_ONCE_INIT; int perftools_pthread_once(pthread_once_t *ctl, void (*init_routine) (void)) { #ifdef __FreeBSD__ // On __FreeBSD__, calling pthread_once on a system that is not // linked with -pthread is silently a noop. :-( Luckily, we have a // workaround: FreeBSD exposes __isthreaded in , which is // set to 1 when the first thread is spawned. So on those systems, // we can use our own separate pthreads-once mechanism, which is // used until __isthreaded is 1 (which will never be true if the app // is not linked with -pthread). static bool pthread_once_ran_before_threads = false; if (pthread_once_ran_before_threads) { return 0; } if (!__isthreaded) { init_routine(); pthread_once_ran_before_threads = true; return 0; } #endif if (pthread_once) { return pthread_once(ctl, init_routine); } else { if (memcmp(ctl, &pthread_once_init, sizeof(*ctl)) == 0) { init_routine(); ++*(char*)(ctl); // make it so it's no longer equal to init } return 0; } } gperftools-2.4/src/profiler.cc0000644000000000000000000003504612450132572013363 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // Chris Demetriou (refactoring) // // Profile current program by sampling stack-trace every so often #include "config.h" #include "getpc.h" // should be first to get the _GNU_SOURCE dfn #include #include #include #include #include #ifdef HAVE_UNISTD_H #include // for getpid() #endif #if defined(HAVE_SYS_UCONTEXT_H) #include #elif defined(HAVE_UCONTEXT_H) #include #elif defined(HAVE_CYGWIN_SIGNAL_H) #include typedef ucontext ucontext_t; #else typedef int ucontext_t; // just to quiet the compiler, mostly #endif #include #include #include #include #include "base/commandlineflags.h" #include "base/logging.h" #include "base/googleinit.h" #include "base/spinlock.h" #include "base/sysinfo.h" /* for GetUniquePathFromEnv, etc */ #include "profiledata.h" #include "profile-handler.h" #ifdef HAVE_CONFLICT_SIGNAL_H #include "conflict-signal.h" /* used on msvc machines */ #endif using std::string; DEFINE_bool(cpu_profiler_unittest, EnvToBool("PERFTOOLS_UNITTEST", true), "Determines whether or not we are running under the \ control of a unit test. This allows us to include or \ exclude certain behaviours."); // Collects up all profile data. This is a singleton, which is // initialized by a constructor at startup. If no cpu profiler // signal is specified then the profiler lifecycle is either // manaully controlled via the API or attached to the scope of // the singleton (program scope). Otherwise the cpu toggle is // used to allow for user selectable control via signal generation. // This is very useful for profiling a daemon process without // having to start and stop the daemon or having to modify the // source code to use the cpu profiler API. class CpuProfiler { public: CpuProfiler(); ~CpuProfiler(); // Start profiler to write profile info into fname bool Start(const char* fname, const ProfilerOptions* options); // Stop profiling and write the data to disk. void Stop(); // Write the data to disk (and continue profiling). void FlushTable(); bool Enabled(); void GetCurrentState(ProfilerState* state); static CpuProfiler instance_; private: // This lock implements the locking requirements described in the ProfileData // documentation, specifically: // // lock_ is held all over all collector_ method calls except for the 'Add' // call made from the signal handler, to protect against concurrent use of // collector_'s control routines. Code other than signal handler must // unregister the signal handler before calling any collector_ method. // 'Add' method in the collector is protected by a guarantee from // ProfileHandle that only one instance of prof_handler can run at a time. SpinLock lock_; ProfileData collector_; // Filter function and its argument, if any. (NULL means include all // samples). Set at start, read-only while running. Written while holding // lock_, read and executed in the context of SIGPROF interrupt. int (*filter_)(void*); void* filter_arg_; // Opaque token returned by the profile handler. To be used when calling // ProfileHandlerUnregisterCallback. ProfileHandlerToken* prof_handler_token_; // Sets up a callback to receive SIGPROF interrupt. void EnableHandler(); // Disables receiving SIGPROF interrupt. void DisableHandler(); // Signal handler that records the interrupted pc in the profile data. static void prof_handler(int sig, siginfo_t*, void* signal_ucontext, void* cpu_profiler); }; // Signal handler that is registered when a user selectable signal // number is defined in the environment variable CPUPROFILESIGNAL. static void CpuProfilerSwitch(int signal_number) { bool static started = false; static unsigned profile_count = 0; static char base_profile_name[1024] = "\0"; if (base_profile_name[0] == '\0') { if (!GetUniquePathFromEnv("CPUPROFILE", base_profile_name)) { RAW_LOG(FATAL,"Cpu profiler switch is registered but no CPUPROFILE is defined"); return; } } if (!started) { char full_profile_name[1024]; snprintf(full_profile_name, sizeof(full_profile_name), "%s.%u", base_profile_name, profile_count++); if(!ProfilerStart(full_profile_name)) { RAW_LOG(FATAL, "Can't turn on cpu profiling for '%s': %s\n", full_profile_name, strerror(errno)); } } else { ProfilerStop(); } started = !started; } // Profile data structure singleton: Constructor will check to see if // profiling should be enabled. Destructor will write profile data // out to disk. CpuProfiler CpuProfiler::instance_; // Initialize profiling: activated if getenv("CPUPROFILE") exists. CpuProfiler::CpuProfiler() : prof_handler_token_(NULL) { // TODO(cgd) Move this code *out* of the CpuProfile constructor into a // separate object responsible for initialization. With ProfileHandler there // is no need to limit the number of profilers. if (getenv("CPUPROFILE") == NULL) { if (!FLAGS_cpu_profiler_unittest) { RAW_LOG(WARNING, "CPU profiler linked but no valid CPUPROFILE environment variable found\n"); } return; } // We don't enable profiling if setuid -- it's a security risk #ifdef HAVE_GETEUID if (getuid() != geteuid()) { if (!FLAGS_cpu_profiler_unittest) { RAW_LOG(WARNING, "Cannot perform CPU profiling when running with setuid\n"); } return; } #endif char *signal_number_str = getenv("CPUPROFILESIGNAL"); if (signal_number_str != NULL) { long int signal_number = strtol(signal_number_str, NULL, 10); if (signal_number >= 1 && signal_number <= 64) { intptr_t old_signal_handler = reinterpret_cast(signal(signal_number, CpuProfilerSwitch)); if (old_signal_handler == 0) { RAW_LOG(INFO,"Using signal %d as cpu profiling switch", signal_number); } else { RAW_LOG(FATAL, "Signal %d already in use\n", signal_number); } } else { RAW_LOG(FATAL, "Signal number %s is invalid\n", signal_number_str); } } else { char fname[PATH_MAX]; if (!GetUniquePathFromEnv("CPUPROFILE", fname)) { if (!FLAGS_cpu_profiler_unittest) { RAW_LOG(WARNING, "CPU profiler linked but no valid CPUPROFILE environment variable found\n"); } return; } if (!Start(fname, NULL)) { RAW_LOG(FATAL, "Can't turn on cpu profiling for '%s': %s\n", fname, strerror(errno)); } } } bool CpuProfiler::Start(const char* fname, const ProfilerOptions* options) { SpinLockHolder cl(&lock_); if (collector_.enabled()) { return false; } ProfileHandlerState prof_handler_state; ProfileHandlerGetState(&prof_handler_state); ProfileData::Options collector_options; collector_options.set_frequency(prof_handler_state.frequency); if (!collector_.Start(fname, collector_options)) { return false; } filter_ = NULL; if (options != NULL && options->filter_in_thread != NULL) { filter_ = options->filter_in_thread; filter_arg_ = options->filter_in_thread_arg; } // Setup handler for SIGPROF interrupts EnableHandler(); return true; } CpuProfiler::~CpuProfiler() { Stop(); } // Stop profiling and write out any collected profile data void CpuProfiler::Stop() { SpinLockHolder cl(&lock_); if (!collector_.enabled()) { return; } // Unregister prof_handler to stop receiving SIGPROF interrupts before // stopping the collector. DisableHandler(); // DisableHandler waits for the currently running callback to complete and // guarantees no future invocations. It is safe to stop the collector. collector_.Stop(); } void CpuProfiler::FlushTable() { SpinLockHolder cl(&lock_); if (!collector_.enabled()) { return; } // Unregister prof_handler to stop receiving SIGPROF interrupts before // flushing the profile data. DisableHandler(); // DisableHandler waits for the currently running callback to complete and // guarantees no future invocations. It is safe to flush the profile data. collector_.FlushTable(); EnableHandler(); } bool CpuProfiler::Enabled() { SpinLockHolder cl(&lock_); return collector_.enabled(); } void CpuProfiler::GetCurrentState(ProfilerState* state) { ProfileData::State collector_state; { SpinLockHolder cl(&lock_); collector_.GetCurrentState(&collector_state); } state->enabled = collector_state.enabled; state->start_time = static_cast(collector_state.start_time); state->samples_gathered = collector_state.samples_gathered; int buf_size = sizeof(state->profile_name); strncpy(state->profile_name, collector_state.profile_name, buf_size); state->profile_name[buf_size-1] = '\0'; } void CpuProfiler::EnableHandler() { RAW_CHECK(prof_handler_token_ == NULL, "SIGPROF handler already registered"); prof_handler_token_ = ProfileHandlerRegisterCallback(prof_handler, this); RAW_CHECK(prof_handler_token_ != NULL, "Failed to set up SIGPROF handler"); } void CpuProfiler::DisableHandler() { RAW_CHECK(prof_handler_token_ != NULL, "SIGPROF handler is not registered"); ProfileHandlerUnregisterCallback(prof_handler_token_); prof_handler_token_ = NULL; } // Signal handler that records the pc in the profile-data structure. We do no // synchronization here. profile-handler.cc guarantees that at most one // instance of prof_handler() will run at a time. All other routines that // access the data touched by prof_handler() disable this signal handler before // accessing the data and therefore cannot execute concurrently with // prof_handler(). void CpuProfiler::prof_handler(int sig, siginfo_t*, void* signal_ucontext, void* cpu_profiler) { CpuProfiler* instance = static_cast(cpu_profiler); if (instance->filter_ == NULL || (*instance->filter_)(instance->filter_arg_)) { void* stack[ProfileData::kMaxStackDepth]; // Under frame-pointer-based unwinding at least on x86, the // top-most active routine doesn't show up as a normal frame, but // as the "pc" value in the signal handler context. stack[0] = GetPC(*reinterpret_cast(signal_ucontext)); // We skip the top three stack trace entries (this function, // SignalHandler::SignalHandler and one signal handler frame) // since they are artifacts of profiling and should not be // measured. Other profiling related frames may be removed by // "pprof" at analysis time. Instead of skipping the top frames, // we could skip nothing, but that would increase the profile size // unnecessarily. int depth = GetStackTraceWithContext(stack + 1, arraysize(stack) - 1, 3, signal_ucontext); void **used_stack; if (stack[1] == stack[0]) { // in case of non-frame-pointer-based unwinding we will get // duplicate of PC in stack[1], which we don't want used_stack = stack + 1; } else { used_stack = stack; depth++; // To account for pc value in stack[0]; } instance->collector_.Add(depth, used_stack); } } #if !(defined(__CYGWIN__) || defined(__CYGWIN32__)) extern "C" PERFTOOLS_DLL_DECL void ProfilerRegisterThread() { ProfileHandlerRegisterThread(); } extern "C" PERFTOOLS_DLL_DECL void ProfilerFlush() { CpuProfiler::instance_.FlushTable(); } extern "C" PERFTOOLS_DLL_DECL int ProfilingIsEnabledForAllThreads() { return CpuProfiler::instance_.Enabled(); } extern "C" PERFTOOLS_DLL_DECL int ProfilerStart(const char* fname) { return CpuProfiler::instance_.Start(fname, NULL); } extern "C" PERFTOOLS_DLL_DECL int ProfilerStartWithOptions( const char *fname, const ProfilerOptions *options) { return CpuProfiler::instance_.Start(fname, options); } extern "C" PERFTOOLS_DLL_DECL void ProfilerStop() { CpuProfiler::instance_.Stop(); } extern "C" PERFTOOLS_DLL_DECL void ProfilerGetCurrentState( ProfilerState* state) { CpuProfiler::instance_.GetCurrentState(state); } #else // OS_CYGWIN // ITIMER_PROF doesn't work under cygwin. ITIMER_REAL is available, but doesn't // work as well for profiling, and also interferes with alarm(). Because of // these issues, unless a specific need is identified, profiler support is // disabled under Cygwin. extern "C" void ProfilerRegisterThread() { } extern "C" void ProfilerFlush() { } extern "C" int ProfilingIsEnabledForAllThreads() { return 0; } extern "C" int ProfilerStart(const char* fname) { return 0; } extern "C" int ProfilerStartWithOptions(const char *fname, const ProfilerOptions *options) { return 0; } extern "C" void ProfilerStop() { } extern "C" void ProfilerGetCurrentState(ProfilerState* state) { memset(state, 0, sizeof(*state)); } #endif // OS_CYGWIN // DEPRECATED routines extern "C" PERFTOOLS_DLL_DECL void ProfilerEnable() { } extern "C" PERFTOOLS_DLL_DECL void ProfilerDisable() { } gperftools-2.4/src/profile-handler.cc0000644000000000000000000005375312440704174014623 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2009, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // Nabeel Mian // // Implements management of profile timers and the corresponding signal handler. #include "config.h" #include "profile-handler.h" #if !(defined(__CYGWIN__) || defined(__CYGWIN32__)) #include #include #include #include #include #if HAVE_LINUX_SIGEV_THREAD_ID // for timer_{create,settime} and associated typedefs & constants #include // for sys_gettid #include "base/linux_syscall_support.h" // for perftools_pthread_key_create #include "maybe_threads.h" #endif #include "base/dynamic_annotations.h" #include "base/googleinit.h" #include "base/logging.h" #include "base/spinlock.h" #include "maybe_threads.h" using std::list; using std::string; // This structure is used by ProfileHandlerRegisterCallback and // ProfileHandlerUnregisterCallback as a handle to a registered callback. struct ProfileHandlerToken { // Sets the callback and associated arg. ProfileHandlerToken(ProfileHandlerCallback cb, void* cb_arg) : callback(cb), callback_arg(cb_arg) { } // Callback function to be invoked on receiving a profile timer interrupt. ProfileHandlerCallback callback; // Argument for the callback function. void* callback_arg; }; // This class manages profile timers and associated signal handler. This is a // a singleton. class ProfileHandler { public: // Registers the current thread with the profile handler. On systems which // have a separate interval timer for each thread, this function starts the // timer for the current thread. // // The function also attempts to determine whether or not timers are shared by // all threads in the process. (With LinuxThreads, and with NPTL on some // Linux kernel versions, each thread has separate timers.) // // Prior to determining whether timers are shared, this function will // unconditionally start the timer. However, if this function determines // that timers are shared, then it will stop the timer if no callbacks are // currently registered. void RegisterThread(); // Registers a callback routine to receive profile timer ticks. The returned // token is to be used when unregistering this callback and must not be // deleted by the caller. Registration of the first callback enables the // SIGPROF handler (or SIGALRM if using ITIMER_REAL). ProfileHandlerToken* RegisterCallback(ProfileHandlerCallback callback, void* callback_arg); // Unregisters a previously registered callback. Expects the token returned // by the corresponding RegisterCallback routine. Unregistering the last // callback disables the SIGPROF handler (or SIGALRM if using ITIMER_REAL). void UnregisterCallback(ProfileHandlerToken* token) NO_THREAD_SAFETY_ANALYSIS; // Unregisters all the callbacks, stops the timer if shared, disables the // SIGPROF (or SIGALRM) handler and clears the timer_sharing_ state. void Reset(); // Gets the current state of profile handler. void GetState(ProfileHandlerState* state); // Initializes and returns the ProfileHandler singleton. static ProfileHandler* Instance(); private: ProfileHandler(); ~ProfileHandler(); // Largest allowed frequency. static const int32 kMaxFrequency = 4000; // Default frequency. static const int32 kDefaultFrequency = 100; // ProfileHandler singleton. static ProfileHandler* instance_; // pthread_once_t for one time initialization of ProfileHandler singleton. static pthread_once_t once_; // Initializes the ProfileHandler singleton via GoogleOnceInit. static void Init(); // The number of SIGPROF (or SIGALRM for ITIMER_REAL) interrupts received. int64 interrupts_ GUARDED_BY(signal_lock_); // SIGPROF/SIGALRM interrupt frequency, read-only after construction. int32 frequency_; // ITIMER_PROF (which uses SIGPROF), or ITIMER_REAL (which uses SIGALRM) int timer_type_; // Counts the number of callbacks registered. int32 callback_count_ GUARDED_BY(control_lock_); // Is profiling allowed at all? bool allowed_; bool per_thread_timer_enabled_; #ifdef HAVE_LINUX_SIGEV_THREAD_ID // this is used to destroy per-thread profiling timers on thread // termination pthread_key_t thread_timer_key; #endif // Whether or not the threading system provides interval timers that are // shared by all threads in a process. enum { // No timer initialization attempted yet. TIMERS_UNTOUCHED, // First thread has registered and set timer. TIMERS_ONE_SET, // Timers are shared by all threads. TIMERS_SHARED, // Timers are separate in each thread. TIMERS_SEPARATE } timer_sharing_ GUARDED_BY(control_lock_); // This lock serializes the registration of threads and protects the // callbacks_ list below. // Locking order: // In the context of a signal handler, acquire signal_lock_ to walk the // callback list. Otherwise, acquire control_lock_, disable the signal // handler and then acquire signal_lock_. SpinLock control_lock_ ACQUIRED_BEFORE(signal_lock_); SpinLock signal_lock_; // Holds the list of registered callbacks. We expect the list to be pretty // small. Currently, the cpu profiler (base/profiler) and thread module // (base/thread.h) are the only two components registering callbacks. // Following are the locking requirements for callbacks_: // For read-write access outside the SIGPROF handler: // - Acquire control_lock_ // - Disable SIGPROF handler. // - Acquire signal_lock_ // For read-only access in the context of SIGPROF handler // (Read-write access is *not allowed* in the SIGPROF handler) // - Acquire signal_lock_ // For read-only access outside SIGPROF handler: // - Acquire control_lock_ typedef list CallbackList; typedef CallbackList::iterator CallbackIterator; CallbackList callbacks_ GUARDED_BY(signal_lock_); // Starts the interval timer. If the thread library shares timers between // threads, this function starts the shared timer. Otherwise, this will start // the timer in the current thread. void StartTimer() EXCLUSIVE_LOCKS_REQUIRED(control_lock_); // Stops the interval timer. If the thread library shares timers between // threads, this fucntion stops the shared timer. Otherwise, this will stop // the timer in the current thread. void StopTimer() EXCLUSIVE_LOCKS_REQUIRED(control_lock_); // Returns true if the profile interval timer is enabled in the current // thread. This actually checks the kernel's interval timer setting. (It is // used to detect whether timers are shared or separate.) bool IsTimerRunning() EXCLUSIVE_LOCKS_REQUIRED(control_lock_); // Sets the timer interrupt signal handler. void EnableHandler() EXCLUSIVE_LOCKS_REQUIRED(control_lock_); // Disables (ignores) the timer interrupt signal. void DisableHandler() EXCLUSIVE_LOCKS_REQUIRED(control_lock_); // Returns true if the handler is not being used by something else. // This checks the kernel's signal handler table. bool IsSignalHandlerAvailable(); // SIGPROF/SIGALRM handler. Iterate over and call all the registered callbacks. static void SignalHandler(int sig, siginfo_t* sinfo, void* ucontext); DISALLOW_COPY_AND_ASSIGN(ProfileHandler); }; ProfileHandler* ProfileHandler::instance_ = NULL; pthread_once_t ProfileHandler::once_ = PTHREAD_ONCE_INIT; const int32 ProfileHandler::kMaxFrequency; const int32 ProfileHandler::kDefaultFrequency; // If we are LD_PRELOAD-ed against a non-pthreads app, then // pthread_once won't be defined. We declare it here, for that // case (with weak linkage) which will cause the non-definition to // resolve to NULL. We can then check for NULL or not in Instance. extern "C" int pthread_once(pthread_once_t *, void (*)(void)) ATTRIBUTE_WEAK; #if HAVE_LINUX_SIGEV_THREAD_ID // We use weak alias to timer_create to avoid runtime dependency on // -lrt and in turn -lpthread. // // At runtime we detect if timer_create is available and if so we // can enable linux-sigev-thread mode of profiling extern "C" { int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid) ATTRIBUTE_WEAK; int timer_delete(timer_t timerid) ATTRIBUTE_WEAK; int timer_settime(timer_t timerid, int flags, const struct itimerspec *value, struct itimerspec *ovalue) ATTRIBUTE_WEAK; } struct timer_id_holder { timer_t timerid; timer_id_holder(timer_t _timerid) : timerid(_timerid) {} }; extern "C" { static void ThreadTimerDestructor(void *arg) { if (!arg) { return; } timer_id_holder *holder = static_cast(arg); timer_delete(holder->timerid); delete holder; } } static void CreateThreadTimerKey(pthread_key_t *pkey) { int rv = perftools_pthread_key_create(pkey, ThreadTimerDestructor); if (rv) { RAW_LOG(FATAL, "aborting due to pthread_key_create error: %s", strerror(rv)); } } static void StartLinuxThreadTimer(int timer_type, int32 frequency, pthread_key_t timer_key) { int rv; struct sigevent sevp; timer_t timerid; struct itimerspec its; memset(&sevp, 0, sizeof(sevp)); sevp.sigev_notify = SIGEV_THREAD_ID; sevp._sigev_un._tid = sys_gettid(); const int signal_number = (timer_type == ITIMER_PROF ? SIGPROF : SIGALRM); sevp.sigev_signo = signal_number; clockid_t clock = CLOCK_THREAD_CPUTIME_ID; if (timer_type == ITIMER_REAL) { clock = CLOCK_MONOTONIC; } rv = timer_create(clock, &sevp, &timerid); if (rv) { RAW_LOG(FATAL, "aborting due to timer_create error: %s", strerror(errno)); } timer_id_holder *holder = new timer_id_holder(timerid); rv = perftools_pthread_setspecific(timer_key, holder); if (rv) { RAW_LOG(FATAL, "aborting due to pthread_setspecific error: %s", strerror(rv)); } its.it_interval.tv_sec = 0; its.it_interval.tv_nsec = 1000000000 / frequency; its.it_value = its.it_interval; rv = timer_settime(timerid, 0, &its, 0); if (rv) { RAW_LOG(FATAL, "aborting due to timer_settime error: %s", strerror(errno)); } } #endif void ProfileHandler::Init() { instance_ = new ProfileHandler(); } ProfileHandler* ProfileHandler::Instance() { if (pthread_once) { pthread_once(&once_, Init); } if (instance_ == NULL) { // This will be true on systems that don't link in pthreads, // including on FreeBSD where pthread_once has a non-zero address // (but doesn't do anything) even when pthreads isn't linked in. Init(); assert(instance_ != NULL); } return instance_; } ProfileHandler::ProfileHandler() : interrupts_(0), callback_count_(0), allowed_(true), per_thread_timer_enabled_(false), timer_sharing_(TIMERS_UNTOUCHED) { SpinLockHolder cl(&control_lock_); timer_type_ = (getenv("CPUPROFILE_REALTIME") ? ITIMER_REAL : ITIMER_PROF); // Get frequency of interrupts (if specified) char junk; const char* fr = getenv("CPUPROFILE_FREQUENCY"); if (fr != NULL && (sscanf(fr, "%u%c", &frequency_, &junk) == 1) && (frequency_ > 0)) { // Limit to kMaxFrequency frequency_ = (frequency_ > kMaxFrequency) ? kMaxFrequency : frequency_; } else { frequency_ = kDefaultFrequency; } if (!allowed_) { return; } // If something else is using the signal handler, // assume it has priority over us and stop. if (!IsSignalHandlerAvailable()) { RAW_LOG(INFO, "Disabling profiler because %s handler is already in use.", timer_type_ == ITIMER_REAL ? "SIGALRM" : "SIGPROF"); allowed_ = false; return; } // Ignore signals until we decide to turn profiling on. (Paranoia; // should already be ignored.) DisableHandler(); #if HAVE_LINUX_SIGEV_THREAD_ID if (getenv("CPUPROFILE_PER_THREAD_TIMERS")) { if (timer_create && pthread_once) { timer_sharing_ = TIMERS_SEPARATE; CreateThreadTimerKey(&thread_timer_key); per_thread_timer_enabled_ = true; } else { RAW_LOG(INFO, "Not enabling linux-per-thread-timers mode due to lack of timer_create." " Preload or link to librt.so for this to work"); } } #endif } ProfileHandler::~ProfileHandler() { Reset(); #ifdef HAVE_LINUX_SIGEV_THREAD_ID if (per_thread_timer_enabled_) { perftools_pthread_key_delete(thread_timer_key); } #endif } void ProfileHandler::RegisterThread() { SpinLockHolder cl(&control_lock_); if (!allowed_) { return; } // We try to detect whether timers are being shared by setting a // timer in the first call to this function, then checking whether // it's set in the second call. // // Note that this detection method requires that the first two calls // to RegisterThread must be made from different threads. (Subsequent // calls will see timer_sharing_ set to either TIMERS_SEPARATE or // TIMERS_SHARED, and won't try to detect the timer sharing type.) // // Also note that if timer settings were inherited across new thread // creation but *not* shared, this approach wouldn't work. That's // not an issue for any Linux threading implementation, and should // not be a problem for a POSIX-compliant threads implementation. switch (timer_sharing_) { case TIMERS_UNTOUCHED: StartTimer(); timer_sharing_ = TIMERS_ONE_SET; break; case TIMERS_ONE_SET: // If the timer is running, that means that the main thread's // timer setup is seen in this (second) thread -- and therefore // that timers are shared. if (IsTimerRunning()) { timer_sharing_ = TIMERS_SHARED; // If callback is already registered, we have to keep the timer // running. If not, we disable the timer here. if (callback_count_ == 0) { StopTimer(); } } else { timer_sharing_ = TIMERS_SEPARATE; StartTimer(); } break; case TIMERS_SHARED: // Nothing needed. break; case TIMERS_SEPARATE: StartTimer(); break; } } ProfileHandlerToken* ProfileHandler::RegisterCallback( ProfileHandlerCallback callback, void* callback_arg) { ProfileHandlerToken* token = new ProfileHandlerToken(callback, callback_arg); SpinLockHolder cl(&control_lock_); DisableHandler(); { SpinLockHolder sl(&signal_lock_); callbacks_.push_back(token); } // Start the timer if timer is shared and this is a first callback. if ((callback_count_ == 0) && (timer_sharing_ == TIMERS_SHARED)) { StartTimer(); } ++callback_count_; EnableHandler(); return token; } void ProfileHandler::UnregisterCallback(ProfileHandlerToken* token) { SpinLockHolder cl(&control_lock_); for (CallbackIterator it = callbacks_.begin(); it != callbacks_.end(); ++it) { if ((*it) == token) { RAW_CHECK(callback_count_ > 0, "Invalid callback count"); DisableHandler(); { SpinLockHolder sl(&signal_lock_); delete *it; callbacks_.erase(it); } --callback_count_; if (callback_count_ > 0) { EnableHandler(); } else if (timer_sharing_ == TIMERS_SHARED) { StopTimer(); } return; } } // Unknown token. RAW_LOG(FATAL, "Invalid token"); } void ProfileHandler::Reset() { SpinLockHolder cl(&control_lock_); DisableHandler(); { SpinLockHolder sl(&signal_lock_); CallbackIterator it = callbacks_.begin(); while (it != callbacks_.end()) { CallbackIterator tmp = it; ++it; delete *tmp; callbacks_.erase(tmp); } } callback_count_ = 0; if (timer_sharing_ == TIMERS_SHARED) { StopTimer(); } timer_sharing_ = TIMERS_UNTOUCHED; } void ProfileHandler::GetState(ProfileHandlerState* state) { SpinLockHolder cl(&control_lock_); DisableHandler(); { SpinLockHolder sl(&signal_lock_); // Protects interrupts_. state->interrupts = interrupts_; } if (callback_count_ > 0) { EnableHandler(); } state->frequency = frequency_; state->callback_count = callback_count_; state->allowed = allowed_; } void ProfileHandler::StartTimer() { if (!allowed_) { return; } #if HAVE_LINUX_SIGEV_THREAD_ID if (per_thread_timer_enabled_) { StartLinuxThreadTimer(timer_type_, frequency_, thread_timer_key); return; } #endif struct itimerval timer; timer.it_interval.tv_sec = 0; timer.it_interval.tv_usec = 1000000 / frequency_; timer.it_value = timer.it_interval; setitimer(timer_type_, &timer, 0); } void ProfileHandler::StopTimer() { if (!allowed_) { return; } if (per_thread_timer_enabled_) { RAW_LOG(FATAL, "StopTimer cannot be called in linux-per-thread-timers mode"); } struct itimerval timer; memset(&timer, 0, sizeof timer); setitimer(timer_type_, &timer, 0); } bool ProfileHandler::IsTimerRunning() { if (!allowed_) { return false; } if (per_thread_timer_enabled_) { return false; } struct itimerval current_timer; RAW_CHECK(0 == getitimer(timer_type_, ¤t_timer), "getitimer"); return (current_timer.it_value.tv_sec != 0 || current_timer.it_value.tv_usec != 0); } void ProfileHandler::EnableHandler() { if (!allowed_) { return; } struct sigaction sa; sa.sa_sigaction = SignalHandler; sa.sa_flags = SA_RESTART | SA_SIGINFO; sigemptyset(&sa.sa_mask); const int signal_number = (timer_type_ == ITIMER_PROF ? SIGPROF : SIGALRM); RAW_CHECK(sigaction(signal_number, &sa, NULL) == 0, "sigprof (enable)"); } void ProfileHandler::DisableHandler() { if (!allowed_) { return; } struct sigaction sa; sa.sa_handler = SIG_IGN; sa.sa_flags = SA_RESTART; sigemptyset(&sa.sa_mask); const int signal_number = (timer_type_ == ITIMER_PROF ? SIGPROF : SIGALRM); RAW_CHECK(sigaction(signal_number, &sa, NULL) == 0, "sigprof (disable)"); } bool ProfileHandler::IsSignalHandlerAvailable() { struct sigaction sa; const int signal_number = (timer_type_ == ITIMER_PROF ? SIGPROF : SIGALRM); RAW_CHECK(sigaction(signal_number, NULL, &sa) == 0, "is-signal-handler avail"); // We only take over the handler if the current one is unset. // It must be SIG_IGN or SIG_DFL, not some other function. // SIG_IGN must be allowed because when profiling is allowed but // not actively in use, this code keeps the handler set to SIG_IGN. // That setting will be inherited across fork+exec. In order for // any child to be able to use profiling, SIG_IGN must be treated // as available. return sa.sa_handler == SIG_IGN || sa.sa_handler == SIG_DFL; } void ProfileHandler::SignalHandler(int sig, siginfo_t* sinfo, void* ucontext) { int saved_errno = errno; // At this moment, instance_ must be initialized because the handler is // enabled in RegisterThread or RegisterCallback only after // ProfileHandler::Instance runs. ProfileHandler* instance = ANNOTATE_UNPROTECTED_READ(instance_); RAW_CHECK(instance != NULL, "ProfileHandler is not initialized"); { SpinLockHolder sl(&instance->signal_lock_); ++instance->interrupts_; for (CallbackIterator it = instance->callbacks_.begin(); it != instance->callbacks_.end(); ++it) { (*it)->callback(sig, sinfo, ucontext, (*it)->callback_arg); } } errno = saved_errno; } // This module initializer registers the main thread, so it must be // executed in the context of the main thread. REGISTER_MODULE_INITIALIZER(profile_main, ProfileHandlerRegisterThread()); extern "C" void ProfileHandlerRegisterThread() { ProfileHandler::Instance()->RegisterThread(); } extern "C" ProfileHandlerToken* ProfileHandlerRegisterCallback( ProfileHandlerCallback callback, void* callback_arg) { return ProfileHandler::Instance()->RegisterCallback(callback, callback_arg); } extern "C" void ProfileHandlerUnregisterCallback(ProfileHandlerToken* token) { ProfileHandler::Instance()->UnregisterCallback(token); } extern "C" void ProfileHandlerReset() { return ProfileHandler::Instance()->Reset(); } extern "C" void ProfileHandlerGetState(ProfileHandlerState* state) { ProfileHandler::Instance()->GetState(state); } #else // OS_CYGWIN // ITIMER_PROF doesn't work under cygwin. ITIMER_REAL is available, but doesn't // work as well for profiling, and also interferes with alarm(). Because of // these issues, unless a specific need is identified, profiler support is // disabled under Cygwin. extern "C" void ProfileHandlerRegisterThread() { } extern "C" ProfileHandlerToken* ProfileHandlerRegisterCallback( ProfileHandlerCallback callback, void* callback_arg) { return NULL; } extern "C" void ProfileHandlerUnregisterCallback(ProfileHandlerToken* token) { } extern "C" void ProfileHandlerReset() { } extern "C" void ProfileHandlerGetState(ProfileHandlerState* state) { } #endif // OS_CYGWIN gperftools-2.4/src/profiledata.cc0000644000000000000000000002230212440704174014024 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Author: Sanjay Ghemawat // Chris Demetriou (refactoring) // // Collect profiling data. #include #include #include #include #include #ifdef HAVE_UNISTD_H #include #endif #include #include #include #include "profiledata.h" #include "base/logging.h" #include "base/sysinfo.h" // All of these are initialized in profiledata.h. const int ProfileData::kMaxStackDepth; const int ProfileData::kAssociativity; const int ProfileData::kBuckets; const int ProfileData::kBufferLength; ProfileData::Options::Options() : frequency_(1) { } // This function is safe to call from asynchronous signals (but is not // re-entrant). However, that's not part of its public interface. void ProfileData::Evict(const Entry& entry) { const int d = entry.depth; const int nslots = d + 2; // Number of slots needed in eviction buffer if (num_evicted_ + nslots > kBufferLength) { FlushEvicted(); assert(num_evicted_ == 0); assert(nslots <= kBufferLength); } evict_[num_evicted_++] = entry.count; evict_[num_evicted_++] = d; memcpy(&evict_[num_evicted_], entry.stack, d * sizeof(Slot)); num_evicted_ += d; } ProfileData::ProfileData() : hash_(0), evict_(0), num_evicted_(0), out_(-1), count_(0), evictions_(0), total_bytes_(0), fname_(0), start_time_(0) { } bool ProfileData::Start(const char* fname, const ProfileData::Options& options) { if (enabled()) { return false; } // Open output file and initialize various data structures int fd = open(fname, O_CREAT | O_WRONLY | O_TRUNC, 0666); if (fd < 0) { // Can't open outfile for write return false; } start_time_ = time(NULL); fname_ = strdup(fname); // Reset counters num_evicted_ = 0; count_ = 0; evictions_ = 0; total_bytes_ = 0; hash_ = new Bucket[kBuckets]; evict_ = new Slot[kBufferLength]; memset(hash_, 0, sizeof(hash_[0]) * kBuckets); // Record special entries evict_[num_evicted_++] = 0; // count for header evict_[num_evicted_++] = 3; // depth for header evict_[num_evicted_++] = 0; // Version number CHECK_NE(0, options.frequency()); int period = 1000000 / options.frequency(); evict_[num_evicted_++] = period; // Period (microseconds) evict_[num_evicted_++] = 0; // Padding out_ = fd; return true; } ProfileData::~ProfileData() { Stop(); } // Dump /proc/maps data to fd. Copied from heap-profile-table.cc. #define NO_INTR(fn) do {} while ((fn) < 0 && errno == EINTR) static void FDWrite(int fd, const char* buf, size_t len) { while (len > 0) { ssize_t r; NO_INTR(r = write(fd, buf, len)); RAW_CHECK(r >= 0, "write failed"); buf += r; len -= r; } } static void DumpProcSelfMaps(int fd) { ProcMapsIterator::Buffer iterbuf; ProcMapsIterator it(0, &iterbuf); // 0 means "current pid" uint64 start, end, offset; int64 inode; char *flags, *filename; ProcMapsIterator::Buffer linebuf; while (it.Next(&start, &end, &flags, &offset, &inode, &filename)) { int written = it.FormatLine(linebuf.buf_, sizeof(linebuf.buf_), start, end, flags, offset, inode, filename, 0); FDWrite(fd, linebuf.buf_, written); } } void ProfileData::Stop() { if (!enabled()) { return; } // Move data from hash table to eviction buffer for (int b = 0; b < kBuckets; b++) { Bucket* bucket = &hash_[b]; for (int a = 0; a < kAssociativity; a++) { if (bucket->entry[a].count > 0) { Evict(bucket->entry[a]); } } } if (num_evicted_ + 3 > kBufferLength) { // Ensure there is enough room for end of data marker FlushEvicted(); } // Write end of data marker evict_[num_evicted_++] = 0; // count evict_[num_evicted_++] = 1; // depth evict_[num_evicted_++] = 0; // end of data marker FlushEvicted(); // Dump "/proc/self/maps" so we get list of mapped shared libraries DumpProcSelfMaps(out_); Reset(); fprintf(stderr, "PROFILE: interrupts/evictions/bytes = %d/%d/%" PRIuS "\n", count_, evictions_, total_bytes_); } void ProfileData::Reset() { if (!enabled()) { return; } // Don't reset count_, evictions_, or total_bytes_ here. They're used // by Stop to print information about the profile after reset, and are // cleared by Start when starting a new profile. close(out_); delete[] hash_; hash_ = 0; delete[] evict_; evict_ = 0; num_evicted_ = 0; free(fname_); fname_ = 0; start_time_ = 0; out_ = -1; } // This function is safe to call from asynchronous signals (but is not // re-entrant). However, that's not part of its public interface. void ProfileData::GetCurrentState(State* state) const { if (enabled()) { state->enabled = true; state->start_time = start_time_; state->samples_gathered = count_; int buf_size = sizeof(state->profile_name); strncpy(state->profile_name, fname_, buf_size); state->profile_name[buf_size-1] = '\0'; } else { state->enabled = false; state->start_time = 0; state->samples_gathered = 0; state->profile_name[0] = '\0'; } } // This function is safe to call from asynchronous signals (but is not // re-entrant). However, that's not part of its public interface. void ProfileData::FlushTable() { if (!enabled()) { return; } // Move data from hash table to eviction buffer for (int b = 0; b < kBuckets; b++) { Bucket* bucket = &hash_[b]; for (int a = 0; a < kAssociativity; a++) { if (bucket->entry[a].count > 0) { Evict(bucket->entry[a]); bucket->entry[a].depth = 0; bucket->entry[a].count = 0; } } } // Write out all pending data FlushEvicted(); } void ProfileData::Add(int depth, const void* const* stack) { if (!enabled()) { return; } if (depth > kMaxStackDepth) depth = kMaxStackDepth; RAW_CHECK(depth > 0, "ProfileData::Add depth <= 0"); // Make hash-value Slot h = 0; for (int i = 0; i < depth; i++) { Slot slot = reinterpret_cast(stack[i]); h = (h << 8) | (h >> (8*(sizeof(h)-1))); h += (slot * 31) + (slot * 7) + (slot * 3); } count_++; // See if table already has an entry for this trace bool done = false; Bucket* bucket = &hash_[h % kBuckets]; for (int a = 0; a < kAssociativity; a++) { Entry* e = &bucket->entry[a]; if (e->depth == depth) { bool match = true; for (int i = 0; i < depth; i++) { if (e->stack[i] != reinterpret_cast(stack[i])) { match = false; break; } } if (match) { e->count++; done = true; break; } } } if (!done) { // Evict entry with smallest count Entry* e = &bucket->entry[0]; for (int a = 1; a < kAssociativity; a++) { if (bucket->entry[a].count < e->count) { e = &bucket->entry[a]; } } if (e->count > 0) { evictions_++; Evict(*e); } // Use the newly evicted entry e->depth = depth; e->count = 1; for (int i = 0; i < depth; i++) { e->stack[i] = reinterpret_cast(stack[i]); } } } // This function is safe to call from asynchronous signals (but is not // re-entrant). However, that's not part of its public interface. void ProfileData::FlushEvicted() { if (num_evicted_ > 0) { const char* buf = reinterpret_cast(evict_); size_t bytes = sizeof(evict_[0]) * num_evicted_; total_bytes_ += bytes; FDWrite(out_, buf, bytes); } num_evicted_ = 0; } gperftools-2.4/src/profiledata.h0000644000000000000000000001470312440704174013674 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Author: Sanjay Ghemawat // Chris Demetriou (refactoring) // // Collect profiling data. // // The profile data file format is documented in // doc/cpuprofile-fileformat.html #ifndef BASE_PROFILEDATA_H_ #define BASE_PROFILEDATA_H_ #include #include // for time_t #include #include "base/basictypes.h" // A class that accumulates profile samples and writes them to a file. // // Each sample contains a stack trace and a count. Memory usage is // reduced by combining profile samples that have the same stack trace // by adding up the associated counts. // // Profile data is accumulated in a bounded amount of memory, and will // flushed to a file as necessary to stay within the memory limit. // // Use of this class assumes external synchronization. The exact // requirements of that synchronization are that: // // - 'Add' may be called from asynchronous signals, but is not // re-entrant. // // - None of 'Start', 'Stop', 'Reset', 'Flush', and 'Add' may be // called at the same time. // // - 'Start', 'Stop', or 'Reset' should not be called while 'Enabled' // or 'GetCurrent' are running, and vice versa. // // A profiler which uses asyncronous signals to add samples will // typically use two locks to protect this data structure: // // - A SpinLock which is held over all calls except for the 'Add' // call made from the signal handler. // // - A SpinLock which is held over calls to 'Start', 'Stop', 'Reset', // 'Flush', and 'Add'. (This SpinLock should be acquired after // the first SpinLock in all cases where both are needed.) class ProfileData { public: struct State { bool enabled; // Is profiling currently enabled? time_t start_time; // If enabled, when was profiling started? char profile_name[1024]; // Name of file being written, or '\0' int samples_gathered; // Number of samples gathered to far (or 0) }; class Options { public: Options(); // Get and set the sample frequency. int frequency() const { return frequency_; } void set_frequency(int frequency) { frequency_ = frequency; } private: int frequency_; // Sample frequency. }; static const int kMaxStackDepth = 64; // Max stack depth stored in profile ProfileData(); ~ProfileData(); // If data collection is not already enabled start to collect data // into fname. Parameters related to this profiling run are specified // by 'options'. // // Returns true if data collection could be started, otherwise (if an // error occurred or if data collection was already enabled) returns // false. bool Start(const char *fname, const Options& options); // If data collection is enabled, stop data collection and write the // data to disk. void Stop(); // Stop data collection without writing anything else to disk, and // discard any collected data. void Reset(); // If data collection is enabled, record a sample with 'depth' // entries from 'stack'. (depth must be > 0.) At most // kMaxStackDepth stack entries will be recorded, starting with // stack[0]. // // This function is safe to call from asynchronous signals (but is // not re-entrant). void Add(int depth, const void* const* stack); // If data collection is enabled, write the data to disk (and leave // the collector enabled). void FlushTable(); // Is data collection currently enabled? bool enabled() const { return out_ >= 0; } // Get the current state of the data collector. void GetCurrentState(State* state) const; private: static const int kAssociativity = 4; // For hashtable static const int kBuckets = 1 << 10; // For hashtable static const int kBufferLength = 1 << 18; // For eviction buffer // Type of slots: each slot can be either a count, or a PC value typedef uintptr_t Slot; // Hash-table/eviction-buffer entry (a.k.a. a sample) struct Entry { Slot count; // Number of hits Slot depth; // Stack depth Slot stack[kMaxStackDepth]; // Stack contents }; // Hash table bucket struct Bucket { Entry entry[kAssociativity]; }; Bucket* hash_; // hash table Slot* evict_; // evicted entries int num_evicted_; // how many evicted entries? int out_; // fd for output file. int count_; // How many samples recorded int evictions_; // How many evictions size_t total_bytes_; // How much output char* fname_; // Profile file name time_t start_time_; // Start time, or 0 // Move 'entry' to the eviction buffer. void Evict(const Entry& entry); // Write contents of eviction buffer to disk. void FlushEvicted(); DISALLOW_COPY_AND_ASSIGN(ProfileData); }; #endif // BASE_PROFILEDATA_H_ gperftools-2.4/src/profile-handler.h0000644000000000000000000001371312440704174014455 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2009, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Nabeel Mian * * This module manages the cpu profile timers and the associated interrupt * handler. When enabled, all registered threads in the program are profiled. * (Note: if using linux 2.4 or earlier, you must use the Thread class, in * google3/thread, to ensure all threads are profiled.) * * Any component interested in receiving a profile timer interrupt can do so by * registering a callback. All registered callbacks must be async-signal-safe. * * Note: This module requires the sole ownership of ITIMER_PROF timer and the * SIGPROF signal. */ #ifndef BASE_PROFILE_HANDLER_H_ #define BASE_PROFILE_HANDLER_H_ #include "config.h" #include #ifdef COMPILER_MSVC #include "conflict-signal.h" #endif #include "base/basictypes.h" /* All this code should be usable from within C apps. */ #ifdef __cplusplus extern "C" { #endif /* Forward declaration. */ struct ProfileHandlerToken; /* * Callback function to be used with ProfilefHandlerRegisterCallback. This * function will be called in the context of SIGPROF signal handler and must * be async-signal-safe. The first three arguments are the values provided by * the SIGPROF signal handler. We use void* to avoid using ucontext_t on * non-POSIX systems. * * Requirements: * - Callback must be async-signal-safe. * - None of the functions in ProfileHandler are async-signal-safe. Therefore, * callback function *must* not call any of the ProfileHandler functions. * - Callback is not required to be re-entrant. At most one instance of * callback can run at a time. * * Notes: * - The SIGPROF signal handler saves and restores errno, so the callback * doesn't need to. * - Callback code *must* not acquire lock(s) to serialize access to data shared * with the code outside the signal handler (callback must be * async-signal-safe). If such a serialization is needed, follow the model * used by profiler.cc: * * When code other than the signal handler modifies the shared data it must: * - Acquire lock. * - Unregister the callback with the ProfileHandler. * - Modify shared data. * - Re-register the callback. * - Release lock. * and the callback code gets a lockless, read-write access to the data. */ typedef void (*ProfileHandlerCallback)(int sig, siginfo_t* sig_info, void* ucontext, void* callback_arg); /* * Registers a new thread with profile handler and should be called only once * per thread. The main thread is registered at program startup. This routine * is called by the Thread module in google3/thread whenever a new thread is * created. This function is not async-signal-safe. */ void ProfileHandlerRegisterThread(); /* * Registers a callback routine. This callback function will be called in the * context of SIGPROF handler, so must be async-signal-safe. The returned token * is to be used when unregistering this callback via * ProfileHandlerUnregisterCallback. Registering the first callback enables * the SIGPROF signal handler. Caller must not free the returned token. This * function is not async-signal-safe. */ ProfileHandlerToken* ProfileHandlerRegisterCallback( ProfileHandlerCallback callback, void* callback_arg); /* * Unregisters a previously registered callback. Expects the token returned * by the corresponding ProfileHandlerRegisterCallback and asserts that the * passed token is valid. Unregistering the last callback disables the SIGPROF * signal handler. It waits for the currently running callback to * complete before returning. This function is not async-signal-safe. */ void ProfileHandlerUnregisterCallback(ProfileHandlerToken* token); /* * FOR TESTING ONLY * Unregisters all the callbacks, stops the timers (if shared) and disables the * SIGPROF handler. All the threads, including the main thread, need to be * re-registered after this call. This function is not async-signal-safe. */ void ProfileHandlerReset(); /* * Stores profile handler's current state. This function is not * async-signal-safe. */ struct ProfileHandlerState { int32 frequency; /* Profiling frequency */ int32 callback_count; /* Number of callbacks registered */ int64 interrupts; /* Number of interrupts received */ bool allowed; /* Profiling is allowed */ }; void ProfileHandlerGetState(struct ProfileHandlerState* state); #ifdef __cplusplus } /* extern "C" */ #endif #endif /* BASE_PROFILE_HANDLER_H_ */ gperftools-2.4/src/getpc.h0000644000000000000000000001720012440704174012477 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // This is an internal header file used by profiler.cc. It defines // the single (inline) function GetPC. GetPC is used in a signal // handler to figure out the instruction that was being executed when // the signal-handler was triggered. // // To get this, we use the ucontext_t argument to the signal-handler // callback, which holds the full context of what was going on when // the signal triggered. How to get from a ucontext_t to a Program // Counter is OS-dependent. #ifndef BASE_GETPC_H_ #define BASE_GETPC_H_ #include "config.h" // On many linux systems, we may need _GNU_SOURCE to get access to // the defined constants that define the register we want to see (eg // REG_EIP). Note this #define must come first! #define _GNU_SOURCE 1 // If #define _GNU_SOURCE causes problems, this might work instead. // It will cause problems for FreeBSD though!, because it turns off // the needed __BSD_VISIBLE. //#define _XOPEN_SOURCE 500 #include // for memcmp #if defined(HAVE_SYS_UCONTEXT_H) #include #elif defined(HAVE_UCONTEXT_H) #include // for ucontext_t (and also mcontext_t) #elif defined(HAVE_CYGWIN_SIGNAL_H) #include typedef ucontext ucontext_t; #endif // Take the example where function Foo() calls function Bar(). For // many architectures, Bar() is responsible for setting up and tearing // down its own stack frame. In that case, it's possible for the // interrupt to happen when execution is in Bar(), but the stack frame // is not properly set up (either before it's done being set up, or // after it's been torn down but before Bar() returns). In those // cases, the stack trace cannot see the caller function anymore. // // GetPC can try to identify this situation, on architectures where it // might occur, and unwind the current function call in that case to // avoid false edges in the profile graph (that is, edges that appear // to show a call skipping over a function). To do this, we hard-code // in the asm instructions we might see when setting up or tearing // down a stack frame. // // This is difficult to get right: the instructions depend on the // processor, the compiler ABI, and even the optimization level. This // is a best effort patch -- if we fail to detect such a situation, or // mess up the PC, nothing happens; the returned PC is not used for // any further processing. struct CallUnrollInfo { // Offset from (e)ip register where this instruction sequence // should be matched. Interpreted as bytes. Offset 0 is the next // instruction to execute. Be extra careful with negative offsets in // architectures of variable instruction length (like x86) - it is // not that easy as taking an offset to step one instruction back! int pc_offset; // The actual instruction bytes. Feel free to make it larger if you // need a longer sequence. unsigned char ins[16]; // How many bytes to match from ins array? int ins_size; // The offset from the stack pointer (e)sp where to look for the // call return address. Interpreted as bytes. int return_sp_offset; }; // The dereferences needed to get the PC from a struct ucontext were // determined at configure time, and stored in the macro // PC_FROM_UCONTEXT in config.h. The only thing we need to do here, // then, is to do the magic call-unrolling for systems that support it. // -- Special case 1: linux x86, for which we have CallUnrollInfo #if defined(__linux) && defined(__i386) && defined(__GNUC__) static const CallUnrollInfo callunrollinfo[] = { // Entry to a function: push %ebp; mov %esp,%ebp // Top-of-stack contains the caller IP. { 0, {0x55, 0x89, 0xe5}, 3, 0 }, // Entry to a function, second instruction: push %ebp; mov %esp,%ebp // Top-of-stack contains the old frame, caller IP is +4. { -1, {0x55, 0x89, 0xe5}, 3, 4 }, // Return from a function: RET. // Top-of-stack contains the caller IP. { 0, {0xc3}, 1, 0 } }; inline void* GetPC(const ucontext_t& signal_ucontext) { // See comment above struct CallUnrollInfo. Only try instruction // flow matching if both eip and esp looks reasonable. const int eip = signal_ucontext.uc_mcontext.gregs[REG_EIP]; const int esp = signal_ucontext.uc_mcontext.gregs[REG_ESP]; if ((eip & 0xffff0000) != 0 && (~eip & 0xffff0000) != 0 && (esp & 0xffff0000) != 0) { char* eip_char = reinterpret_cast(eip); for (int i = 0; i < sizeof(callunrollinfo)/sizeof(*callunrollinfo); ++i) { if (!memcmp(eip_char + callunrollinfo[i].pc_offset, callunrollinfo[i].ins, callunrollinfo[i].ins_size)) { // We have a match. void **retaddr = (void**)(esp + callunrollinfo[i].return_sp_offset); return *retaddr; } } } return (void*)eip; } // Special case #2: Windows, which has to do something totally different. #elif defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__MINGW32__) // If this is ever implemented, probably the way to do it is to have // profiler.cc use a high-precision timer via timeSetEvent: // http://msdn2.microsoft.com/en-us/library/ms712713.aspx // We'd use it in mode TIME_CALLBACK_FUNCTION/TIME_PERIODIC. // The callback function would be something like prof_handler, but // alas the arguments are different: no ucontext_t! I don't know // how we'd get the PC (using StackWalk64?) // http://msdn2.microsoft.com/en-us/library/ms680650.aspx #include "base/logging.h" // for RAW_LOG #ifndef HAVE_CYGWIN_SIGNAL_H typedef int ucontext_t; #endif inline void* GetPC(const struct ucontext_t& signal_ucontext) { RAW_LOG(ERROR, "GetPC is not yet implemented on Windows\n"); return NULL; } // Normal cases. If this doesn't compile, it's probably because // PC_FROM_UCONTEXT is the empty string. You need to figure out // the right value for your system, and add it to the list in // configure.ac (or set it manually in your config.h). #else inline void* GetPC(const ucontext_t& signal_ucontext) { return (void*)signal_ucontext.PC_FROM_UCONTEXT; // defined in config.h } #endif #endif // BASE_GETPC_H_ gperftools-2.4/src/stacktrace.cc0000644000000000000000000002256112442432113013656 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Produce stack trace. // // There are three different ways we can try to get the stack trace: // // 1) Our hand-coded stack-unwinder. This depends on a certain stack // layout, which is used by gcc (and those systems using a // gcc-compatible ABI) on x86 systems, at least since gcc 2.95. // It uses the frame pointer to do its work. // // 2) The libunwind library. This is still in development, and as a // separate library adds a new dependency, abut doesn't need a frame // pointer. It also doesn't call malloc. // // 3) The gdb unwinder -- also the one used by the c++ exception code. // It's obviously well-tested, but has a fatal flaw: it can call // malloc() from the unwinder. This is a problem because we're // trying to use the unwinder to instrument malloc(). // // Note: if you add a new implementation here, make sure it works // correctly when GetStackTrace() is called with max_depth == 0. // Some code may do that. #include #include // for getenv #include // for strcmp #include // for fprintf #include "gperftools/stacktrace.h" #include "base/commandlineflags.h" #include "base/googleinit.h" // we're using plain struct and not class to avoid any possible issues // during initialization. Struct of pointers is easy to init at // link-time. struct GetStackImplementation { int (*GetStackFramesPtr)(void** result, int* sizes, int max_depth, int skip_count); int (*GetStackFramesWithContextPtr)(void** result, int* sizes, int max_depth, int skip_count, const void *uc); int (*GetStackTracePtr)(void** result, int max_depth, int skip_count); int (*GetStackTraceWithContextPtr)(void** result, int max_depth, int skip_count, const void *uc); const char *name; }; #if HAVE_DECL_BACKTRACE #define STACKTRACE_INL_HEADER "stacktrace_generic-inl.h" #define GST_SUFFIX generic #include "stacktrace_impl_setup-inl.h" #undef GST_SUFFIX #undef STACKTRACE_INL_HEADER #define HAVE_GST_generic #endif // libunwind uses __thread so we check for both libunwind.h and // __thread support #if defined(HAVE_LIBUNWIND_H) && defined(HAVE_TLS) #define STACKTRACE_INL_HEADER "stacktrace_libunwind-inl.h" #define GST_SUFFIX libunwind #include "stacktrace_impl_setup-inl.h" #undef GST_SUFFIX #undef STACKTRACE_INL_HEADER #define HAVE_GST_libunwind #endif // HAVE_LIBUNWIND_H #if defined(__i386__) || defined(__x86_64__) #define STACKTRACE_INL_HEADER "stacktrace_x86-inl.h" #define GST_SUFFIX x86 #include "stacktrace_impl_setup-inl.h" #undef GST_SUFFIX #undef STACKTRACE_INL_HEADER #define HAVE_GST_x86 #endif // i386 || x86_64 #if defined(__ppc__) || defined(__PPC__) #if defined(__linux__) #define STACKTRACE_INL_HEADER "stacktrace_powerpc-linux-inl.h" #else #define STACKTRACE_INL_HEADER "stacktrace_powerpc-darwin-inl.h" #endif #define GST_SUFFIX ppc #include "stacktrace_impl_setup-inl.h" #undef GST_SUFFIX #undef STACKTRACE_INL_HEADER #define HAVE_GST_ppc #endif #if defined(__arm__) #define STACKTRACE_INL_HEADER "stacktrace_arm-inl.h" #define GST_SUFFIX arm #include "stacktrace_impl_setup-inl.h" #undef GST_SUFFIX #undef STACKTRACE_INL_HEADER #define HAVE_GST_arm #endif #ifdef TCMALLOC_ENABLE_INSTRUMENT_STACKTRACE #define STACKTRACE_INL_HEADER "stacktrace_instrument-inl.h" #define GST_SUFFIX instrument #include "stacktrace_impl_setup-inl.h" #undef GST_SUFFIX #undef STACKTRACE_INL_HEADER #define HAVE_GST_instrument #endif // The Windows case -- probably cygwin and mingw will use one of the // x86-includes above, but if not, we can fall back to windows intrinsics. #if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__MINGW32__) #define STACKTRACE_INL_HEADER "stacktrace_win32-inl.h" #define GST_SUFFIX win32 #include "stacktrace_impl_setup-inl.h" #undef GST_SUFFIX #undef STACKTRACE_INL_HEADER #define HAVE_GST_win32 #endif static GetStackImplementation *all_impls[] = { #ifdef HAVE_GST_generic &impl__generic, #endif #ifdef HAVE_GST_libunwind &impl__libunwind, #endif #ifdef HAVE_GST_x86 &impl__x86, #endif #ifdef HAVE_GST_arm &impl__arm, #endif #ifdef HAVE_GST_ppc &impl__ppc, #endif #ifdef HAVE_GST_instrument &impl__instrument, #endif #ifdef HAVE_GST_win32 &impl__win32, #endif NULL }; // ppc and i386 implementations prefer arch-specific asm implementations. // arm's asm implementation is broken #if defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__PPC__) #if !defined(NO_FRAME_POINTER) #define TCMALLOC_DONT_PREFER_LIBUNWIND #endif #endif #if defined(HAVE_GST_instrument) static GetStackImplementation *get_stack_impl = &impl__instrument; #elif defined(HAVE_GST_win32) static GetStackImplementation *get_stack_impl = &impl__win32; #elif defined(HAVE_GST_x86) && defined(TCMALLOC_DONT_PREFER_LIBUNWIND) static GetStackImplementation *get_stack_impl = &impl__x86; #elif defined(HAVE_GST_ppc) && defined(TCMALLOC_DONT_PREFER_LIBUNWIND) static GetStackImplementation *get_stack_impl = &impl__ppc; #elif defined(HAVE_GST_libunwind) static GetStackImplementation *get_stack_impl = &impl__libunwind; #elif defined(HAVE_GST_arm) static GetStackImplementation *get_stack_impl = &impl__arm; #elif defined(HAVE_GST_generic) static GetStackImplementation *get_stack_impl = &impl__generic; #elif 0 // This is for the benefit of code analysis tools that may have // trouble with the computed #include above. # include "stacktrace_x86-inl.h" # include "stacktrace_libunwind-inl.h" # include "stacktrace_generic-inl.h" # include "stacktrace_powerpc-inl.h" # include "stacktrace_win32-inl.h" # include "stacktrace_arm-inl.h" # include "stacktrace_instrument-inl.h" #else #error Cannot calculate stack trace: will need to write for your environment #endif static int ATTRIBUTE_NOINLINE frame_forcer(int rv) { return rv; } PERFTOOLS_DLL_DECL int GetStackFrames(void** result, int* sizes, int max_depth, int skip_count) { return frame_forcer(get_stack_impl->GetStackFramesPtr(result, sizes, max_depth, skip_count)); } PERFTOOLS_DLL_DECL int GetStackFramesWithContext(void** result, int* sizes, int max_depth, int skip_count, const void *uc) { return frame_forcer(get_stack_impl->GetStackFramesWithContextPtr( result, sizes, max_depth, skip_count, uc)); } PERFTOOLS_DLL_DECL int GetStackTrace(void** result, int max_depth, int skip_count) { return frame_forcer(get_stack_impl->GetStackTracePtr(result, max_depth, skip_count)); } PERFTOOLS_DLL_DECL int GetStackTraceWithContext(void** result, int max_depth, int skip_count, const void *uc) { return frame_forcer(get_stack_impl->GetStackTraceWithContextPtr( result, max_depth, skip_count, uc)); } static void init_default_stack_impl_inner(void) { char *val = getenv("TCMALLOC_STACKTRACE_METHOD"); if (!val || !*val) { return; } for (GetStackImplementation **p = all_impls; *p; p++) { GetStackImplementation *c = *p; if (strcmp(c->name, val) == 0) { get_stack_impl = c; return; } } fprintf(stderr, "Unknown or unsupported stacktrace method requested: %s. Ignoring it\n", val); } static void init_default_stack_impl(void) { init_default_stack_impl_inner(); if (EnvToBool("TCMALLOC_STACKTRACE_METHOD_VERBOSE", false)) { fprintf(stderr, "Chosen stacktrace method is %s\nSupported methods:\n", get_stack_impl->name); for (GetStackImplementation **p = all_impls; *p; p++) { GetStackImplementation *c = *p; fprintf(stderr, "* %s\n", c->name); } fputs("\n", stderr); } } REGISTER_MODULE_INITIALIZER(stacktrace_init_default_stack_impl, init_default_stack_impl()); gperftools-2.4/src/stacktrace_impl_setup-inl.h0000644000000000000000000000720512440704174016546 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // NOTE: this is NOT to be #include-d normally. It's internal // implementation detail of stacktrace.cc // // Copyright (c) 2014, gperftools Contributors. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Aliaksey Kandratsenka // // based on stacktrace.cc and stacktrace_config.h by Sanjay Ghemawat // and Paul Pluzhnikov from Google Inc #define SIS_CONCAT2(a, b) a##b #define SIS_CONCAT(a, b) SIS_CONCAT2(a,b) #define SIS_STRINGIFY(a) SIS_STRINGIFY2(a) #define SIS_STRINGIFY2(a) #a #define IS_STACK_FRAMES 0 #define IS_WITH_CONTEXT 0 #define GET_STACK_TRACE_OR_FRAMES \ SIS_CONCAT(GetStackTrace_, GST_SUFFIX)(void **result, int max_depth, int skip_count) #include STACKTRACE_INL_HEADER #undef IS_STACK_FRAMES #undef IS_WITH_CONTEXT #undef GET_STACK_TRACE_OR_FRAMES #define IS_STACK_FRAMES 1 #define IS_WITH_CONTEXT 0 #define GET_STACK_TRACE_OR_FRAMES \ SIS_CONCAT(GetStackFrames_, GST_SUFFIX)(void **result, int *sizes, int max_depth, int skip_count) #include STACKTRACE_INL_HEADER #undef IS_STACK_FRAMES #undef IS_WITH_CONTEXT #undef GET_STACK_TRACE_OR_FRAMES #define IS_STACK_FRAMES 0 #define IS_WITH_CONTEXT 1 #define GET_STACK_TRACE_OR_FRAMES \ SIS_CONCAT(GetStackTraceWithContext_, GST_SUFFIX)(void **result, int max_depth, \ int skip_count, const void *ucp) #include STACKTRACE_INL_HEADER #undef IS_STACK_FRAMES #undef IS_WITH_CONTEXT #undef GET_STACK_TRACE_OR_FRAMES #define IS_STACK_FRAMES 1 #define IS_WITH_CONTEXT 1 #define GET_STACK_TRACE_OR_FRAMES \ SIS_CONCAT(GetStackFramesWithContext_, GST_SUFFIX)(void **result, int *sizes, int max_depth, \ int skip_count, const void *ucp) #include STACKTRACE_INL_HEADER #undef IS_STACK_FRAMES #undef IS_WITH_CONTEXT #undef GET_STACK_TRACE_OR_FRAMES static GetStackImplementation SIS_CONCAT(impl__,GST_SUFFIX) = { SIS_CONCAT(GetStackFrames_, GST_SUFFIX), SIS_CONCAT(GetStackFramesWithContext_, GST_SUFFIX), SIS_CONCAT(GetStackTrace_, GST_SUFFIX), SIS_CONCAT(GetStackTraceWithContext_, GST_SUFFIX), SIS_STRINGIFY(GST_SUFFIX) }; #undef SIS_CONCAT2 #undef SIS_CONCAT gperftools-2.4/src/stacktrace_generic-inl.h0000644000000000000000000000653012440704174016001 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Portable implementation - just use glibc // // Note: The glibc implementation may cause a call to malloc. // This can cause a deadlock in HeapProfiler. #ifndef BASE_STACKTRACE_GENERIC_INL_H_ #define BASE_STACKTRACE_GENERIC_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include #include #include "gperftools/stacktrace.h" #endif // BASE_STACKTRACE_GENERIC_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) static int GET_STACK_TRACE_OR_FRAMES { static const int kStackLength = 64; void * stack[kStackLength]; int size; size = backtrace(stack, kStackLength); skip_count += 2; // we want to skip the current and it's parent frame as well int result_count = size - skip_count; if (result_count < 0) result_count = 0; if (result_count > max_depth) result_count = max_depth; for (int i = 0; i < result_count; i++) result[i] = stack[i + skip_count]; #if IS_STACK_FRAMES // No implementation for finding out the stack frame sizes yet. memset(sizes, 0, sizeof(*sizes) * result_count); #endif return result_count; } gperftools-2.4/src/stacktrace_libunwind-inl.h0000644000000000000000000001172712450132572016362 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Arun Sharma // // Produce stack trace using libunwind #ifndef BASE_STACKTRACE_LIBINWIND_INL_H_ #define BASE_STACKTRACE_LIBINWIND_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: // We only need local unwinder. #define UNW_LOCAL_ONLY extern "C" { #include #include // for memset() #include } #include "gperftools/stacktrace.h" #include "base/logging.h" // Sometimes, we can try to get a stack trace from within a stack // trace, because libunwind can call mmap (maybe indirectly via an // internal mmap based memory allocator), and that mmap gets trapped // and causes a stack-trace request. If were to try to honor that // recursive request, we'd end up with infinite recursion or deadlock. // Luckily, it's safe to ignore those subsequent traces. In such // cases, we return 0 to indicate the situation. static __thread int recursive; #if defined(TCMALLOC_ENABLE_UNWIND_FROM_UCONTEXT) && (defined(__i386__) || defined(__x86_64__)) && defined(__GNU_LIBRARY__) #define BASE_STACKTRACE_UNW_CONTEXT_IS_UCONTEXT 1 #endif #endif // BASE_STACKTRACE_LIBINWIND_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) static int GET_STACK_TRACE_OR_FRAMES { void *ip; int n = 0; unw_cursor_t cursor; unw_context_t uc; #if IS_STACK_FRAMES unw_word_t sp = 0, next_sp = 0; #endif if (recursive) { return 0; } ++recursive; #if (IS_WITH_CONTEXT && defined(BASE_STACKTRACE_UNW_CONTEXT_IS_UCONTEXT)) if (ucp) { uc = *(static_cast(const_cast(ucp))); /* this is a bit weird. profiler.cc calls us with signal's ucontext * yet passing us 2 as skip_count and essentially assuming we won't * use ucontext. */ /* In order to fix that I'm going to assume that if ucp is * non-null we're asked to ignore skip_count in case we're * able to use ucp */ skip_count = 0; } else { unw_getcontext(&uc); skip_count += 2; // Do not include current and parent frame } #else unw_getcontext(&uc); skip_count += 2; // Do not include current and parent frame #endif int ret = unw_init_local(&cursor, &uc); assert(ret >= 0); while (skip_count--) { if (unw_step(&cursor) <= 0) { goto out; } #if IS_STACK_FRAMES if (unw_get_reg(&cursor, UNW_REG_SP, &next_sp)) { goto out; } #endif } while (n < max_depth) { if (unw_get_reg(&cursor, UNW_REG_IP, (unw_word_t *) &ip) < 0) { break; } #if IS_STACK_FRAMES sizes[n] = 0; #endif result[n++] = ip; if (unw_step(&cursor) <= 0) { break; } #if IS_STACK_FRAMES sp = next_sp; if (unw_get_reg(&cursor, UNW_REG_SP, &next_sp) , 0) { break; } sizes[n - 1] = next_sp - sp; #endif } out: --recursive; return n; } gperftools-2.4/src/stacktrace_arm-inl.h0000644000000000000000000001375412440704174015152 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Doug Kwan // This is inspired by Craig Silverstein's PowerPC stacktrace code. // #ifndef BASE_STACKTRACE_ARM_INL_H_ #define BASE_STACKTRACE_ARM_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include // for uintptr_t #include "base/basictypes.h" // for NULL #include // WARNING: // This only works if all your code is in either ARM or THUMB mode. With // interworking, the frame pointer of the caller can either be in r11 (ARM // mode) or r7 (THUMB mode). A callee only saves the frame pointer of its // mode in a fixed location on its stack frame. If the caller is a different // mode, there is no easy way to find the frame pointer. It can either be // still in the designated register or saved on stack along with other callee // saved registers. // Given a pointer to a stack frame, locate and return the calling // stackframe, or return NULL if no stackframe can be found. Perform sanity // checks (the strictness of which is controlled by the boolean parameter // "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned. template static void **NextStackFrame(void **old_sp) { void **new_sp = (void**) old_sp[-1]; // Check that the transition from frame pointer old_sp to frame // pointer new_sp isn't clearly bogus if (STRICT_UNWINDING) { // With the stack growing downwards, older stack frame must be // at a greater address that the current one. if (new_sp <= old_sp) return NULL; // Assume stack frames larger than 100,000 bytes are bogus. if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL; } else { // In the non-strict mode, allow discontiguous stack frames. // (alternate-signal-stacks for example). if (new_sp == old_sp) return NULL; // And allow frames upto about 1MB. if ((new_sp > old_sp) && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL; } if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL; return new_sp; } // This ensures that GetStackTrace stes up the Link Register properly. #ifdef __GNUC__ void StacktraceArmDummyFunction() __attribute__((noinline)); void StacktraceArmDummyFunction() { __asm__ volatile(""); } #else # error StacktraceArmDummyFunction() needs to be ported to this platform. #endif #endif // BASE_STACKTRACE_ARM_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) static int GET_STACK_TRACE_OR_FRAMES { #ifdef __GNUC__ void **sp = reinterpret_cast(__builtin_frame_address(0)); #else # error reading stack point not yet supported on this platform. #endif // On ARM, the return address is stored in the link register (r14). // This is not saved on the stack frame of a leaf function. To // simplify code that reads return addresses, we call a dummy // function so that the return address of this function is also // stored in the stack frame. This works at least for gcc. StacktraceArmDummyFunction(); skip_count++; // skip parent frame due to indirection in stacktrace.cc int n = 0; while (sp && n < max_depth) { // The GetStackFrames routine is called when we are in some // informational context (the failure signal handler for example). // Use the non-strict unwinding rules to produce a stack trace // that is as complete as possible (even if it contains a few bogus // entries in some rare cases). void **next_sp = NextStackFrame(sp); if (skip_count > 0) { skip_count--; } else { result[n] = *sp; #if IS_STACK_FRAMES if (next_sp > sp) { sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp; } else { // A frame-size of 0 is used to indicate unknown frame size. sizes[n] = 0; } #endif n++; } sp = next_sp; } return n; } gperftools-2.4/src/stacktrace_powerpc-inl.h0000644000000000000000000001506212440704174016044 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Produce stack trace. I'm guessing (hoping!) the code is much like // for x86. For apple machines, at least, it seems to be; see // http://developer.apple.com/documentation/mac/runtimehtml/RTArch-59.html // http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK // Linux has similar code: http://patchwork.ozlabs.org/linuxppc/patch?id=8882 #ifndef BASE_STACKTRACE_POWERPC_INL_H_ #define BASE_STACKTRACE_POWERPC_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include // for uintptr_t #include // for NULL #include struct layout_ppc { struct layout_ppc *next; #if defined(__APPLE__) || (defined(__linux) && defined(__PPC64__)) long condition_register; #endif void *return_addr; }; // Given a pointer to a stack frame, locate and return the calling // stackframe, or return NULL if no stackframe can be found. Perform sanity // checks (the strictness of which is controlled by the boolean parameter // "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned. template static layout_ppc *NextStackFrame(layout_ppc *current) { uintptr_t old_sp = (uintptr_t)(current); uintptr_t new_sp = (uintptr_t)(current->next); // Check that the transition from frame pointer old_sp to frame // pointer new_sp isn't clearly bogus if (STRICT_UNWINDING) { // With the stack growing downwards, older stack frame must be // at a greater address that the current one. if (new_sp <= old_sp) return NULL; // Assume stack frames larger than 100,000 bytes are bogus. if (new_sp - old_sp > 100000) return NULL; } else { // In the non-strict mode, allow discontiguous stack frames. // (alternate-signal-stacks for example). if (new_sp == old_sp) return NULL; // And allow frames upto about 1MB. if ((new_sp > old_sp) && (new_sp - old_sp > 1000000)) return NULL; } if (new_sp & (sizeof(void *) - 1)) return NULL; return current->next; } // This ensures that GetStackTrace stes up the Link Register properly. void StacktracePowerPCDummyFunction() __attribute__((noinline)); void StacktracePowerPCDummyFunction() { __asm__ volatile(""); } #endif // BASE_STACKTRACE_POWERPC_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // Load instruction used on top-of-stack get. #if defined(__PPC64__) || defined(__LP64__) # define LOAD "ld" #else # define LOAD "lwz" #endif #if defined(__linux__) && defined(__PPC__) # define TOP_STACK "%0,0(1)" #elif defined(__MACH__) && defined(__APPLE__) // Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther) // and Darwin 8.8.1 (Tiger) use as 1.38. This means we have to use a // different asm syntax. I don't know quite the best way to discriminate // systems using the old as from the new one; I've gone with __APPLE__. // TODO(csilvers): use autoconf instead, to look for 'as --version' == 1 or 2 # define TOP_STACK "%0,0(r1)" #endif // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) static int GET_STACK_TRACE_OR_FRAMES { layout_ppc *current; int n; // Force GCC to spill LR. asm volatile ("" : "=l"(current)); // Get the address on top-of-stack asm volatile (LOAD " " TOP_STACK : "=r"(current)); StacktracePowerPCDummyFunction(); n = 0; skip_count++; // skip parent's frame due to indirection in // stacktrace.cc while (current && n < max_depth) { // The GetStackFrames routine is called when we are in some // informational context (the failure signal handler for example). // Use the non-strict unwinding rules to produce a stack trace // that is as complete as possible (even if it contains a few // bogus entries in some rare cases). layout_ppc *next = NextStackFrame(current); if (skip_count > 0) { skip_count--; } else { result[n] = current->return_addr; #if IS_STACK_FRAMES if (next > current) { sizes[n] = (uintptr_t)next - (uintptr_t)current; } else { // A frame-size of 0 is used to indicate unknown frame size. sizes[n] = 0; } #endif n++; } current = next; } // It's possible the second-last stack frame can't return // (that is, it's __libc_start_main), in which case // the CRT startup code will have set its LR to 'NULL'. if (n > 0 && result[n-1] == NULL) n--; return n; } gperftools-2.4/src/stacktrace_powerpc-darwin-inl.h0000644000000000000000000001535412440704174017332 00000000000000// Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Produce stack trace. ABI documentation reference can be found at: // * PowerPC32 ABI: https://www.power.org/documentation/ // power-architecture-32-bit-abi-supplement-1-0-embeddedlinuxunified/ // * PowerPC64 ABI: // http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK #ifndef BASE_STACKTRACE_POWERPC_INL_H_ #define BASE_STACKTRACE_POWERPC_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include // for uintptr_t #include // for NULL #include // Given a pointer to a stack frame, locate and return the calling // stackframe, or return NULL if no stackframe can be found. Perform sanity // checks (the strictness of which is controlled by the boolean parameter // "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned. template static void **NextStackFrame(void **old_sp) { void **new_sp = (void **) *old_sp; // Check that the transition from frame pointer old_sp to frame // pointer new_sp isn't clearly bogus if (STRICT_UNWINDING) { // With the stack growing downwards, older stack frame must be // at a greater address that the current one. if (new_sp <= old_sp) return NULL; // Assume stack frames larger than 100,000 bytes are bogus. if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL; } else { // In the non-strict mode, allow discontiguous stack frames. // (alternate-signal-stacks for example). if (new_sp == old_sp) return NULL; // And allow frames upto about 1MB. if ((new_sp > old_sp) && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL; } if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL; return new_sp; } // This ensures that GetStackTrace stes up the Link Register properly. void StacktracePowerPCDummyFunction() __attribute__((noinline)); void StacktracePowerPCDummyFunction() { __asm__ volatile(""); } #endif // BASE_STACKTRACE_POWERPC_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) int GET_STACK_TRACE_OR_FRAMES { void **sp; // Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther) // and Darwin 8.8.1 (Tiger) use as 1.38. This means we have to use a // different asm syntax. I don't know quite the best way to discriminate // systems using the old as from the new one; I've gone with __APPLE__. // TODO(csilvers): use autoconf instead, to look for 'as --version' == 1 or 2 __asm__ volatile ("mr %0,r1" : "=r" (sp)); // On PowerPC, the "Link Register" or "Link Record" (LR), is a stack // entry that holds the return address of the subroutine call (what // instruction we run after our function finishes). This is the // same as the stack-pointer of our parent routine, which is what we // want here. While the compiler will always(?) set up LR for // subroutine calls, it may not for leaf functions (such as this one). // This routine forces the compiler (at least gcc) to push it anyway. StacktracePowerPCDummyFunction(); #if IS_STACK_FRAMES // Note we do *not* increment skip_count here for the SYSV ABI. If // we did, the list of stack frames wouldn't properly match up with // the list of return addresses. Note this means the top pc entry // is probably bogus for linux/ppc (and other SYSV-ABI systems). #else // The LR save area is used by the callee, so the top entry is bogus. skip_count++; #endif int n = 0; while (sp && n < max_depth) { // The GetStackFrames routine is called when we are in some // informational context (the failure signal handler for example). // Use the non-strict unwinding rules to produce a stack trace // that is as complete as possible (even if it contains a few // bogus entries in some rare cases). void **next_sp = NextStackFrame(sp); if (skip_count > 0) { skip_count--; } else { // PowerPC has 3 main ABIs, which say where in the stack the // Link Register is. For DARWIN and AIX (used by apple and // linux ppc64), it's in sp[2]. For SYSV (used by linux ppc), // it's in sp[1]. #if defined(__PPC64__) // This check is in case the compiler doesn't define _CALL_AIX/etc. result[n] = *(sp+2); #elif defined(__linux) // This check is in case the compiler doesn't define _CALL_SYSV. result[n] = *(sp+1); #endif #if IS_STACK_FRAMES if (next_sp > sp) { sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp; } else { // A frame-size of 0 is used to indicate unknown frame size. sizes[n] = 0; } #endif n++; } sp = next_sp; } return n; } gperftools-2.4/src/stacktrace_powerpc-linux-inl.h0000644000000000000000000002113712440704174017201 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Produce stack trace. ABI documentation reference can be found at: // * PowerPC32 ABI: https://www.power.org/documentation/ // power-architecture-32-bit-abi-supplement-1-0-embeddedlinuxunified/ // * PowerPC64 ABI: // http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK #ifndef BASE_STACKTRACE_POWERPC_INL_H_ #define BASE_STACKTRACE_POWERPC_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include // for uintptr_t #include // for NULL #include #include #if defined(HAVE_SYS_UCONTEXT_H) #include #elif defined(HAVE_UCONTEXT_H) #include // for ucontext_t #endif typedef ucontext ucontext_t; // PowerPC64 Little Endian follows BE wrt. backchain, condition register, // and LR save area, so no need to adjust the reading struct. struct layout_ppc { struct layout_ppc *next; #ifdef __PPC64__ long condition_register; #endif void *return_addr; }; // Signal callbacks are handled by the vDSO symbol: // // * PowerPC64 Linux (arch/powerpc/kernel/vdso64/sigtramp.S): // __kernel_sigtramp_rt64 // * PowerPC32 Linux (arch/powerpc/kernel/vdso32/sigtramp.S): // __kernel_sigtramp32 // __kernel_sigtramp_rt32 // // So a backtrace may need to specially handling if the symbol readed is // the signal trampoline. // Given a pointer to a stack frame, locate and return the calling // stackframe, or return NULL if no stackframe can be found. Perform sanity // checks (the strictness of which is controlled by the boolean parameter // "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned. template static layout_ppc *NextStackFrame(layout_ppc *current) { uintptr_t old_sp = (uintptr_t)(current); uintptr_t new_sp = (uintptr_t)(current->next); // Check that the transition from frame pointer old_sp to frame // pointer new_sp isn't clearly bogus if (STRICT_UNWINDING) { // With the stack growing downwards, older stack frame must be // at a greater address that the current one. if (new_sp <= old_sp) return NULL; // Assume stack frames larger than 100,000 bytes are bogus. if (new_sp - old_sp > 100000) return NULL; } else { // In the non-strict mode, allow discontiguous stack frames. // (alternate-signal-stacks for example). if (new_sp == old_sp) return NULL; // And allow frames upto about 1MB. if ((new_sp > old_sp) && (new_sp - old_sp > 1000000)) return NULL; } if (new_sp & (sizeof(void *) - 1)) return NULL; return current->next; } // This ensures that GetStackTrace stes up the Link Register properly. void StacktracePowerPCDummyFunction() __attribute__((noinline)); void StacktracePowerPCDummyFunction() { __asm__ volatile(""); } #endif // BASE_STACKTRACE_POWERPC_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // Load instruction used on top-of-stack get. #if defined(__PPC64__) || defined(__LP64__) # define LOAD "ld" #else # define LOAD "lwz" #endif // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) static int GET_STACK_TRACE_OR_FRAMES { layout_ppc *current; int n; // Get the address on top-of-stack current = reinterpret_cast (__builtin_frame_address (0)); // And ignore the current symbol current = current->next; StacktracePowerPCDummyFunction(); n = 0; skip_count++; // skip parent's frame due to indirection in // stacktrace.cc base::VDSOSupport vdso; base::ElfMemImage::SymbolInfo rt_sigreturn_symbol_info; #ifdef __PPC64__ const void *sigtramp64_vdso = 0; if (vdso.LookupSymbol("__kernel_sigtramp_rt64", "LINUX_2.6.15", STT_NOTYPE, &rt_sigreturn_symbol_info)) sigtramp64_vdso = rt_sigreturn_symbol_info.address; #else const void *sigtramp32_vdso = 0; if (vdso.LookupSymbol("__kernel_sigtramp32", "LINUX_2.6.15", STT_NOTYPE, &rt_sigreturn_symbol_info)) sigtramp32_vdso = rt_sigreturn_symbol_info.address; const void *sigtramp32_rt_vdso = 0; if (vdso.LookupSymbol("__kernel_sigtramp_rt32", "LINUX_2.6.15", STT_NOTYPE, &rt_sigreturn_symbol_info)) sigtramp32_rt_vdso = rt_sigreturn_symbol_info.address; #endif while (current && n < max_depth) { // The GetStackFrames routine is called when we are in some // informational context (the failure signal handler for example). // Use the non-strict unwinding rules to produce a stack trace // that is as complete as possible (even if it contains a few // bogus entries in some rare cases). layout_ppc *next = NextStackFrame(current); if (skip_count > 0) { skip_count--; } else { result[n] = current->return_addr; #ifdef __PPC64__ if (sigtramp64_vdso && (sigtramp64_vdso == current->return_addr)) { struct signal_frame_64 { char dummy[128]; ucontext_t uc; // We don't care about the rest, since the IP value is at 'uc' field. } *sigframe = reinterpret_cast(current); result[n] = (void*) sigframe->uc.uc_mcontext.gp_regs[PT_NIP]; } #else if (sigtramp32_vdso && (sigtramp32_vdso == current->return_addr)) { struct signal_frame_32 { char dummy[64]; struct sigcontext sctx; mcontext_t mctx; // We don't care about the rest, since IP value is at 'mctx' field. } *sigframe = reinterpret_cast(current); result[n] = (void*) sigframe->mctx.gregs[PT_NIP]; } else if (sigtramp32_rt_vdso && (sigtramp32_rt_vdso == current->return_addr)) { struct rt_signal_frame_32 { char dummy[64 + 16]; siginfo_t info; struct ucontext uc; // We don't care about the rest, since IP value is at 'uc' field.A } *sigframe = reinterpret_cast(current); result[n] = (void*) sigframe->uc.uc_mcontext.uc_regs->gregs[PT_NIP]; } #endif #if IS_STACK_FRAMES if (next > current) { sizes[n] = (uintptr_t)next - (uintptr_t)current; } else { // A frame-size of 0 is used to indicate unknown frame size. sizes[n] = 0; } #endif n++; } current = next; } // It's possible the second-last stack frame can't return // (that is, it's __libc_start_main), in which case // the CRT startup code will have set its LR to 'NULL'. if (n > 0 && result[n-1] == NULL) n--; return n; } gperftools-2.4/src/stacktrace_x86-inl.h0000644000000000000000000003332312440704174015012 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Produce stack trace #ifndef BASE_STACKTRACE_X86_INL_H_ #define BASE_STACKTRACE_X86_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include "config.h" #include // for NULL #include #if defined(HAVE_SYS_UCONTEXT_H) #include #elif defined(HAVE_UCONTEXT_H) #include // for ucontext_t #elif defined(HAVE_CYGWIN_SIGNAL_H) // cygwin/signal.h has a buglet where it uses pthread_attr_t without // #including itself. So we have to do it. # ifdef HAVE_PTHREAD # include # endif #include typedef ucontext ucontext_t; #endif #ifdef HAVE_STDINT_H #include // for uintptr_t #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_MMAP #include // for msync #include "base/vdso_support.h" #endif #include "gperftools/stacktrace.h" #if defined(__linux__) && defined(__i386__) && defined(__ELF__) && defined(HAVE_MMAP) // Count "push %reg" instructions in VDSO __kernel_vsyscall(), // preceding "syscall" or "sysenter". // If __kernel_vsyscall uses frame pointer, answer 0. // // kMaxBytes tells how many instruction bytes of __kernel_vsyscall // to analyze before giving up. Up to kMaxBytes+1 bytes of // instructions could be accessed. // // Here are known __kernel_vsyscall instruction sequences: // // SYSENTER (linux-2.6.26/arch/x86/vdso/vdso32/sysenter.S). // Used on Intel. // 0xffffe400 <__kernel_vsyscall+0>: push %ecx // 0xffffe401 <__kernel_vsyscall+1>: push %edx // 0xffffe402 <__kernel_vsyscall+2>: push %ebp // 0xffffe403 <__kernel_vsyscall+3>: mov %esp,%ebp // 0xffffe405 <__kernel_vsyscall+5>: sysenter // // SYSCALL (see linux-2.6.26/arch/x86/vdso/vdso32/syscall.S). // Used on AMD. // 0xffffe400 <__kernel_vsyscall+0>: push %ebp // 0xffffe401 <__kernel_vsyscall+1>: mov %ecx,%ebp // 0xffffe403 <__kernel_vsyscall+3>: syscall // // i386 (see linux-2.6.26/arch/x86/vdso/vdso32/int80.S) // 0xffffe400 <__kernel_vsyscall+0>: int $0x80 // 0xffffe401 <__kernel_vsyscall+1>: ret // static const int kMaxBytes = 10; // We use assert()s instead of DCHECK()s -- this is too low level // for DCHECK(). static int CountPushInstructions(const unsigned char *const addr) { int result = 0; for (int i = 0; i < kMaxBytes; ++i) { if (addr[i] == 0x89) { // "mov reg,reg" if (addr[i + 1] == 0xE5) { // Found "mov %esp,%ebp". return 0; } ++i; // Skip register encoding byte. } else if (addr[i] == 0x0F && (addr[i + 1] == 0x34 || addr[i + 1] == 0x05)) { // Found "sysenter" or "syscall". return result; } else if ((addr[i] & 0xF0) == 0x50) { // Found "push %reg". ++result; } else if (addr[i] == 0xCD && addr[i + 1] == 0x80) { // Found "int $0x80" assert(result == 0); return 0; } else { // Unexpected instruction. assert(0 == "unexpected instruction in __kernel_vsyscall"); return 0; } } // Unexpected: didn't find SYSENTER or SYSCALL in // [__kernel_vsyscall, __kernel_vsyscall + kMaxBytes) interval. assert(0 == "did not find SYSENTER or SYSCALL in __kernel_vsyscall"); return 0; } #endif // Given a pointer to a stack frame, locate and return the calling // stackframe, or return NULL if no stackframe can be found. Perform sanity // checks (the strictness of which is controlled by the boolean parameter // "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned. template static void **NextStackFrame(void **old_sp, const void *uc) { void **new_sp = (void **) *old_sp; #if defined(__linux__) && defined(__i386__) && defined(HAVE_VDSO_SUPPORT) if (WITH_CONTEXT && uc != NULL) { // How many "push %reg" instructions are there at __kernel_vsyscall? // This is constant for a given kernel and processor, so compute // it only once. static int num_push_instructions = -1; // Sentinel: not computed yet. // Initialize with sentinel value: __kernel_rt_sigreturn can not possibly // be there. static const unsigned char *kernel_rt_sigreturn_address = NULL; static const unsigned char *kernel_vsyscall_address = NULL; if (num_push_instructions == -1) { base::VDSOSupport vdso; if (vdso.IsPresent()) { base::VDSOSupport::SymbolInfo rt_sigreturn_symbol_info; base::VDSOSupport::SymbolInfo vsyscall_symbol_info; if (!vdso.LookupSymbol("__kernel_rt_sigreturn", "LINUX_2.5", STT_FUNC, &rt_sigreturn_symbol_info) || !vdso.LookupSymbol("__kernel_vsyscall", "LINUX_2.5", STT_FUNC, &vsyscall_symbol_info) || rt_sigreturn_symbol_info.address == NULL || vsyscall_symbol_info.address == NULL) { // Unexpected: 32-bit VDSO is present, yet one of the expected // symbols is missing or NULL. assert(0 == "VDSO is present, but doesn't have expected symbols"); num_push_instructions = 0; } else { kernel_rt_sigreturn_address = reinterpret_cast( rt_sigreturn_symbol_info.address); kernel_vsyscall_address = reinterpret_cast( vsyscall_symbol_info.address); num_push_instructions = CountPushInstructions(kernel_vsyscall_address); } } else { num_push_instructions = 0; } } if (num_push_instructions != 0 && kernel_rt_sigreturn_address != NULL && old_sp[1] == kernel_rt_sigreturn_address) { const ucontext_t *ucv = static_cast(uc); // This kernel does not use frame pointer in its VDSO code, // and so %ebp is not suitable for unwinding. void **const reg_ebp = reinterpret_cast(ucv->uc_mcontext.gregs[REG_EBP]); const unsigned char *const reg_eip = reinterpret_cast(ucv->uc_mcontext.gregs[REG_EIP]); if (new_sp == reg_ebp && kernel_vsyscall_address <= reg_eip && reg_eip - kernel_vsyscall_address < kMaxBytes) { // We "stepped up" to __kernel_vsyscall, but %ebp is not usable. // Restore from 'ucv' instead. void **const reg_esp = reinterpret_cast(ucv->uc_mcontext.gregs[REG_ESP]); // Check that alleged %esp is not NULL and is reasonably aligned. if (reg_esp && ((uintptr_t)reg_esp & (sizeof(reg_esp) - 1)) == 0) { // Check that alleged %esp is actually readable. This is to prevent // "double fault" in case we hit the first fault due to e.g. stack // corruption. // // page_size is linker-initalized to avoid async-unsafe locking // that GCC would otherwise insert (__cxa_guard_acquire etc). static int page_size; if (page_size == 0) { // First time through. page_size = getpagesize(); } void *const reg_esp_aligned = reinterpret_cast( (uintptr_t)(reg_esp + num_push_instructions - 1) & ~(page_size - 1)); if (msync(reg_esp_aligned, page_size, MS_ASYNC) == 0) { // Alleged %esp is readable, use it for further unwinding. new_sp = reinterpret_cast( reg_esp[num_push_instructions - 1]); } } } } } #endif // Check that the transition from frame pointer old_sp to frame // pointer new_sp isn't clearly bogus if (STRICT_UNWINDING) { // With the stack growing downwards, older stack frame must be // at a greater address that the current one. if (new_sp <= old_sp) return NULL; // Assume stack frames larger than 100,000 bytes are bogus. if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL; } else { // In the non-strict mode, allow discontiguous stack frames. // (alternate-signal-stacks for example). if (new_sp == old_sp) return NULL; if (new_sp > old_sp) { // And allow frames upto about 1MB. const uintptr_t delta = (uintptr_t)new_sp - (uintptr_t)old_sp; const uintptr_t acceptable_delta = 1000000; if (delta > acceptable_delta) { return NULL; } } } if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL; #ifdef __i386__ // On 64-bit machines, the stack pointer can be very close to // 0xffffffff, so we explicitly check for a pointer into the // last two pages in the address space if ((uintptr_t)new_sp >= 0xffffe000) return NULL; #endif #ifdef HAVE_MMAP if (!STRICT_UNWINDING) { // Lax sanity checks cause a crash on AMD-based machines with // VDSO-enabled kernels. // Make an extra sanity check to insure new_sp is readable. // Note: NextStackFrame() is only called while the program // is already on its last leg, so it's ok to be slow here. static int page_size = getpagesize(); void *new_sp_aligned = (void *)((uintptr_t)new_sp & ~(page_size - 1)); if (msync(new_sp_aligned, page_size, MS_ASYNC) == -1) return NULL; } #endif return new_sp; } #endif // BASE_STACKTRACE_X86_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) static int GET_STACK_TRACE_OR_FRAMES { void **sp; #if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2) || __llvm__ // __builtin_frame_address(0) can return the wrong address on gcc-4.1.0-k8. // It's always correct on llvm, and the techniques below aren't (in // particular, llvm-gcc will make a copy of pcs, so it's not in sp[2]), // so we also prefer __builtin_frame_address when running under llvm. sp = reinterpret_cast(__builtin_frame_address(0)); #elif defined(__i386__) // Stack frame format: // sp[0] pointer to previous frame // sp[1] caller address // sp[2] first argument // ... // NOTE: This will break under llvm, since result is a copy and not in sp[2] sp = (void **)&result - 2; #elif defined(__x86_64__) unsigned long rbp; // Move the value of the register %rbp into the local variable rbp. // We need 'volatile' to prevent this instruction from getting moved // around during optimization to before function prologue is done. // An alternative way to achieve this // would be (before this __asm__ instruction) to call Noop() defined as // static void Noop() __attribute__ ((noinline)); // prevent inlining // static void Noop() { asm(""); } // prevent optimizing-away __asm__ volatile ("mov %%rbp, %0" : "=r" (rbp)); // Arguments are passed in registers on x86-64, so we can't just // offset from &result sp = (void **) rbp; #else # error Using stacktrace_x86-inl.h on a non x86 architecture! #endif skip_count++; // skip parent's frame due to indirection in stacktrace.cc int n = 0; while (sp && n < max_depth) { if (*(sp+1) == reinterpret_cast(0)) { // In 64-bit code, we often see a frame that // points to itself and has a return address of 0. break; } #if !IS_WITH_CONTEXT const void *const ucp = NULL; #endif void **next_sp = NextStackFrame(sp, ucp); if (skip_count > 0) { skip_count--; } else { result[n] = *(sp+1); #if IS_STACK_FRAMES if (next_sp > sp) { sizes[n] = (uintptr_t)next_sp - (uintptr_t)sp; } else { // A frame-size of 0 is used to indicate unknown frame size. sizes[n] = 0; } #endif n++; } sp = next_sp; } return n; } gperftools-2.4/src/stacktrace_win32-inl.h0000644000000000000000000001077612440704174015336 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // --- // Produces a stack trace for Windows. Normally, one could use // stacktrace_x86-inl.h or stacktrace_x86_64-inl.h -- and indeed, that // should work for binaries compiled using MSVC in "debug" mode. // However, in "release" mode, Windows uses frame-pointer // optimization, which makes getting a stack trace very difficult. // // There are several approaches one can take. One is to use Windows // intrinsics like StackWalk64. These can work, but have restrictions // on how successful they can be. Another attempt is to write a // version of stacktrace_x86-inl.h that has heuristic support for // dealing with FPO, similar to what WinDbg does (see // http://www.nynaeve.net/?p=97). // // The solution we've ended up doing is to call the undocumented // windows function RtlCaptureStackBackTrace, which probably doesn't // work with FPO but at least is fast, and doesn't require a symbol // server. // // This code is inspired by a patch from David Vitek: // http://code.google.com/p/gperftools/issues/detail?id=83 #ifndef BASE_STACKTRACE_WIN32_INL_H_ #define BASE_STACKTRACE_WIN32_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include "config.h" #include // for GetProcAddress and GetModuleHandle #include typedef USHORT NTAPI RtlCaptureStackBackTrace_Function( IN ULONG frames_to_skip, IN ULONG frames_to_capture, OUT PVOID *backtrace, OUT PULONG backtrace_hash); // Load the function we need at static init time, where we don't have // to worry about someone else holding the loader's lock. static RtlCaptureStackBackTrace_Function* const RtlCaptureStackBackTrace_fn = (RtlCaptureStackBackTrace_Function*) GetProcAddress(GetModuleHandleA("ntdll.dll"), "RtlCaptureStackBackTrace"); static int GetStackTrace_win32(void** result, int max_depth, int skip_count) { if (!RtlCaptureStackBackTrace_fn) { // TODO(csilvers): should we log an error here? return 0; // can't find a stacktrace with no function to call } return (int)RtlCaptureStackBackTrace_fn(skip_count + 3, max_depth, result, 0); } static int not_implemented(void) { assert(0 == "Not yet implemented"); return 0; } static int GetStackFrames_win32(void** /* pcs */, int* /* sizes */, int /* max_depth */, int /* skip_count */) { return not_implemented(); } static int GetStackFramesWithContext_win32(void** result, int* sizes, int max_depth, int skip_count, const void *uc) { return not_implemented(); } static int GetStackTraceWithContext_win32(void** result, int max_depth, int skip_count, const void *uc) { return not_implemented(); } #endif // BASE_STACKTRACE_WIN32_INL_H_ gperftools-2.4/src/stacktrace_instrument-inl.h0000755000000000000000000001275312440704174016604 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2013, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Jean Lee // based on gcc Code-Gen-Options "-finstrument-functions" listed in // http://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html . // Should run configure with CXXFLAGS="-finstrument-functions". // This file is a backtrace implementation for systems : // * The glibc implementation of backtrace() may cause a call to malloc, // and cause a deadlock in HeapProfiler. // * The libunwind implementation prints no backtrace. // The backtrace arrays are stored in "thread_back_trace" variable. // Maybe to use thread local storage is better and should save memorys. #ifndef BASE_STACKTRACE_INSTRUMENT_INL_H_ #define BASE_STACKTRACE_INSTRUMENT_INL_H_ // Note: this file is included into stacktrace.cc more than once. // Anything that should only be defined once should be here: #include #include #include #include #include "gperftools/stacktrace.h" #define gettid() syscall(__NR_gettid) #ifndef __x86_64__ #define MAX_THREAD (32768) #else #define MAX_THREAD (65536) #endif #define MAX_DEPTH (30) #define ATTRIBUTE_NOINSTRUMENT __attribute__ ((no_instrument_function)) typedef struct { int stack_depth; void* frame[MAX_DEPTH]; }BACK_TRACE; static BACK_TRACE thread_back_trace[MAX_THREAD]; extern "C" { void __cyg_profile_func_enter(void *func_address, void *call_site) ATTRIBUTE_NOINSTRUMENT; void __cyg_profile_func_enter(void *func_address, void *call_site) { (void)func_address; BACK_TRACE* backtrace = thread_back_trace + gettid(); int stack_depth = backtrace->stack_depth; backtrace->stack_depth = stack_depth + 1; if ( stack_depth >= MAX_DEPTH ) { return; } backtrace->frame[stack_depth] = call_site; } void __cyg_profile_func_exit(void *func_address, void *call_site) ATTRIBUTE_NOINSTRUMENT; void __cyg_profile_func_exit(void *func_address, void *call_site) { (void)func_address; (void)call_site; BACK_TRACE* backtrace = thread_back_trace + gettid(); int stack_depth = backtrace->stack_depth; backtrace->stack_depth = stack_depth - 1; if ( stack_depth >= MAX_DEPTH ) { return; } backtrace->frame[stack_depth] = 0; } } // extern "C" static int cyg_backtrace(void **buffer, int size) { BACK_TRACE* backtrace = thread_back_trace + gettid(); int stack_depth = backtrace->stack_depth; if ( stack_depth >= MAX_DEPTH ) { stack_depth = MAX_DEPTH; } int nSize = (size > stack_depth) ? stack_depth : size; for (int i = 0; i < nSize; i++) { buffer[i] = backtrace->frame[nSize - i - 1]; } return nSize; } #endif // BASE_STACKTRACE_INSTRUMENT_INL_H_ // Note: this part of the file is included several times. // Do not put globals below. // The following 4 functions are generated from the code below: // GetStack{Trace,Frames}() // GetStack{Trace,Frames}WithContext() // // These functions take the following args: // void** result: the stack-trace, as an array // int* sizes: the size of each stack frame, as an array // (GetStackFrames* only) // int max_depth: the size of the result (and sizes) array(s) // int skip_count: how many stack pointers to skip before storing in result // void* ucp: a ucontext_t* (GetStack{Trace,Frames}WithContext only) static int GET_STACK_TRACE_OR_FRAMES { static const int kStackLength = 64; void * stack[kStackLength]; int size; memset(stack, 0, sizeof(stack)); size = cyg_backtrace(stack, kStackLength); skip_count += 2; // we want to skip the current and parent frame as well int result_count = size - skip_count; if (result_count < 0) result_count = 0; if (result_count > max_depth) result_count = max_depth; for (int i = 0; i < result_count; i++) result[i] = stack[i + skip_count]; #if IS_STACK_FRAMES // No implementation for finding out the stack frame sizes yet. memset(sizes, 0, sizeof(*sizes) * result_count); #endif return result_count; } gperftools-2.4/src/getenv_safe.h0000644000000000000000000000537012440704174013670 00000000000000/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- * Copyright (c) 2014, gperftools Contributors * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef GETENV_SAFE_H #define GETENV_SAFE_H #ifdef __cplusplus extern "C" { #endif /* * This getenv function is safe to call before the C runtime is initialized. * On Windows, it utilizes GetEnvironmentVariable() and on unix it uses * /proc/self/environ instead calling getenv(). It's intended to be used in * routines that run before main(), when the state required for getenv() may * not be set up yet. In particular, errno isn't set up until relatively late * (after the pthreads library has a chance to make it threadsafe), and * getenv() doesn't work until then. * On some platforms, this call will utilize the same, static buffer for * repeated GetenvBeforeMain() calls. Callers should not expect pointers from * this routine to be long lived. * Note that on unix, /proc only has the environment at the time the * application was started, so this routine ignores setenv() calls/etc. Also * note it only reads the first 16K of the environment. * * NOTE: this is version of GetenvBeforeMain that's usable from * C. Implementation is in sysinfo.cc */ const char* TCMallocGetenvSafe(const char* name); #ifdef __cplusplus } #endif #endif gperftools-2.4/src/tcmalloc.cc0000644000000000000000000017533412450132572013344 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // A malloc that uses a per-thread cache to satisfy small malloc requests. // (The time for malloc/free of a small object drops from 300 ns to 50 ns.) // // See doc/tcmalloc.html for a high-level // description of how this malloc works. // // SYNCHRONIZATION // 1. The thread-specific lists are accessed without acquiring any locks. // This is safe because each such list is only accessed by one thread. // 2. We have a lock per central free-list, and hold it while manipulating // the central free list for a particular size. // 3. The central page allocator is protected by "pageheap_lock". // 4. The pagemap (which maps from page-number to descriptor), // can be read without holding any locks, and written while holding // the "pageheap_lock". // 5. To improve performance, a subset of the information one can get // from the pagemap is cached in a data structure, pagemap_cache_, // that atomically reads and writes its entries. This cache can be // read and written without locking. // // This multi-threaded access to the pagemap is safe for fairly // subtle reasons. We basically assume that when an object X is // allocated by thread A and deallocated by thread B, there must // have been appropriate synchronization in the handoff of object // X from thread A to thread B. The same logic applies to pagemap_cache_. // // THE PAGEID-TO-SIZECLASS CACHE // Hot PageID-to-sizeclass mappings are held by pagemap_cache_. If this cache // returns 0 for a particular PageID then that means "no information," not that // the sizeclass is 0. The cache may have stale information for pages that do // not hold the beginning of any free()'able object. Staleness is eliminated // in Populate() for pages with sizeclass > 0 objects, and in do_malloc() and // do_memalign() for all other relevant pages. // // PAGEMAP // ------- // Page map contains a mapping from page id to Span. // // If Span s occupies pages [p..q], // pagemap[p] == s // pagemap[q] == s // pagemap[p+1..q-1] are undefined // pagemap[p-1] and pagemap[q+1] are defined: // NULL if the corresponding page is not yet in the address space. // Otherwise it points to a Span. This span may be free // or allocated. If free, it is in one of pageheap's freelist. // // TODO: Bias reclamation to larger addresses // TODO: implement mallinfo/mallopt // TODO: Better testing // // 9/28/2003 (new page-level allocator replaces ptmalloc2): // * malloc/free of small objects goes from ~300 ns to ~50 ns. // * allocation of a reasonably complicated struct // goes from about 1100 ns to about 300 ns. #include "config.h" #include #include // for ENOMEM, EINVAL, errno #ifdef HAVE_SYS_CDEFS_H #include // for __THROW #endif #if defined HAVE_STDINT_H #include #elif defined HAVE_INTTYPES_H #include #else #include #endif #include // for size_t, NULL #include // for getenv #include // for strcmp, memset, strlen, etc #ifdef HAVE_UNISTD_H #include // for getpagesize, write, etc #endif #include // for max, min #include // for numeric_limits #include // for nothrow_t (ptr only), etc #include // for vector #include #include // for MallocHook #include "base/basictypes.h" // for int64 #include "base/commandlineflags.h" // for RegisterFlagValidator, etc #include "base/dynamic_annotations.h" // for RunningOnValgrind #include "base/spinlock.h" // for SpinLockHolder #include "central_freelist.h" // for CentralFreeListPadded #include "common.h" // for StackTrace, kPageShift, etc #include "internal_logging.h" // for ASSERT, TCMalloc_Printer, etc #include "linked_list.h" // for SLL_SetNext #include "malloc_hook-inl.h" // for MallocHook::InvokeNewHook, etc #include "page_heap.h" // for PageHeap, PageHeap::Stats #include "page_heap_allocator.h" // for PageHeapAllocator #include "span.h" // for Span, DLL_Prepend, etc #include "stack_trace_table.h" // for StackTraceTable #include "static_vars.h" // for Static #include "system-alloc.h" // for DumpSystemAllocatorStats, etc #include "tcmalloc_guard.h" // for TCMallocGuard #include "thread_cache.h" // for ThreadCache #if (defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)) && !defined(WIN32_OVERRIDE_ALLOCATORS) # define WIN32_DO_PATCHING 1 #endif // Some windows file somewhere (at least on cygwin) #define's small (!) #undef small using STL_NAMESPACE::max; using STL_NAMESPACE::numeric_limits; using STL_NAMESPACE::vector; #include "libc_override.h" // __THROW is defined in glibc (via ). It means, // counter-intuitively, "This function will never throw an exception." // It's an optional optimization tool, but we may need to use it to // match glibc prototypes. #ifndef __THROW // I guess we're not on a glibc system # define __THROW // __THROW is just an optimization, so ok to make it "" #endif using tcmalloc::AlignmentForSize; using tcmalloc::kLog; using tcmalloc::kCrash; using tcmalloc::kCrashWithStats; using tcmalloc::Log; using tcmalloc::PageHeap; using tcmalloc::PageHeapAllocator; using tcmalloc::SizeMap; using tcmalloc::Span; using tcmalloc::StackTrace; using tcmalloc::Static; using tcmalloc::ThreadCache; DECLARE_int64(tcmalloc_sample_parameter); DECLARE_double(tcmalloc_release_rate); // For windows, the printf we use to report large allocs is // potentially dangerous: it could cause a malloc that would cause an // infinite loop. So by default we set the threshold to a huge number // on windows, so this bad situation will never trigger. You can // always set TCMALLOC_LARGE_ALLOC_REPORT_THRESHOLD manually if you // want this functionality. #ifdef _WIN32 const int64 kDefaultLargeAllocReportThreshold = static_cast(1) << 62; #else const int64 kDefaultLargeAllocReportThreshold = static_cast(1) << 30; #endif DEFINE_int64(tcmalloc_large_alloc_report_threshold, EnvToInt64("TCMALLOC_LARGE_ALLOC_REPORT_THRESHOLD", kDefaultLargeAllocReportThreshold), "Allocations larger than this value cause a stack " "trace to be dumped to stderr. The threshold for " "dumping stack traces is increased by a factor of 1.125 " "every time we print a message so that the threshold " "automatically goes up by a factor of ~1000 every 60 " "messages. This bounds the amount of extra logging " "generated by this flag. Default value of this flag " "is very large and therefore you should see no extra " "logging unless the flag is overridden. Set to 0 to " "disable reporting entirely."); // We already declared these functions in tcmalloc.h, but we have to // declare them again to give them an ATTRIBUTE_SECTION: we want to // put all callers of MallocHook::Invoke* in this module into // ATTRIBUTE_SECTION(google_malloc) section, so that // MallocHook::GetCallerStackTrace can function accurately. #ifndef _WIN32 // windows doesn't have attribute_section, so don't bother extern "C" { void* tc_malloc(size_t size) __THROW ATTRIBUTE_SECTION(google_malloc); void tc_free(void* ptr) __THROW ATTRIBUTE_SECTION(google_malloc); void* tc_realloc(void* ptr, size_t size) __THROW ATTRIBUTE_SECTION(google_malloc); void* tc_calloc(size_t nmemb, size_t size) __THROW ATTRIBUTE_SECTION(google_malloc); void tc_cfree(void* ptr) __THROW ATTRIBUTE_SECTION(google_malloc); void* tc_memalign(size_t __alignment, size_t __size) __THROW ATTRIBUTE_SECTION(google_malloc); int tc_posix_memalign(void** ptr, size_t align, size_t size) __THROW ATTRIBUTE_SECTION(google_malloc); void* tc_valloc(size_t __size) __THROW ATTRIBUTE_SECTION(google_malloc); void* tc_pvalloc(size_t __size) __THROW ATTRIBUTE_SECTION(google_malloc); void tc_malloc_stats(void) __THROW ATTRIBUTE_SECTION(google_malloc); int tc_mallopt(int cmd, int value) __THROW ATTRIBUTE_SECTION(google_malloc); #ifdef HAVE_STRUCT_MALLINFO struct mallinfo tc_mallinfo(void) __THROW ATTRIBUTE_SECTION(google_malloc); #endif void* tc_new(size_t size) ATTRIBUTE_SECTION(google_malloc); void tc_delete(void* p) __THROW ATTRIBUTE_SECTION(google_malloc); void* tc_newarray(size_t size) ATTRIBUTE_SECTION(google_malloc); void tc_deletearray(void* p) __THROW ATTRIBUTE_SECTION(google_malloc); // And the nothrow variants of these: void* tc_new_nothrow(size_t size, const std::nothrow_t&) __THROW ATTRIBUTE_SECTION(google_malloc); void* tc_newarray_nothrow(size_t size, const std::nothrow_t&) __THROW ATTRIBUTE_SECTION(google_malloc); // Surprisingly, standard C++ library implementations use a // nothrow-delete internally. See, eg: // http://www.dinkumware.com/manuals/?manual=compleat&page=new.html void tc_delete_nothrow(void* ptr, const std::nothrow_t&) __THROW ATTRIBUTE_SECTION(google_malloc); void tc_deletearray_nothrow(void* ptr, const std::nothrow_t&) __THROW ATTRIBUTE_SECTION(google_malloc); // Some non-standard extensions that we support. // This is equivalent to // OS X: malloc_size() // glibc: malloc_usable_size() // Windows: _msize() size_t tc_malloc_size(void* p) __THROW ATTRIBUTE_SECTION(google_malloc); } // extern "C" #endif // #ifndef _WIN32 // ----------------------- IMPLEMENTATION ------------------------------- static int tc_new_mode = 0; // See tc_set_new_mode(). // Routines such as free() and realloc() catch some erroneous pointers // passed to them, and invoke the below when they do. (An erroneous pointer // won't be caught if it's within a valid span or a stale span for which // the pagemap cache has a non-zero sizeclass.) This is a cheap (source-editing // required) kind of exception handling for these routines. namespace { void InvalidFree(void* ptr) { Log(kCrash, __FILE__, __LINE__, "Attempt to free invalid pointer", ptr); } size_t InvalidGetSizeForRealloc(const void* old_ptr) { Log(kCrash, __FILE__, __LINE__, "Attempt to realloc invalid pointer", old_ptr); return 0; } size_t InvalidGetAllocatedSize(const void* ptr) { Log(kCrash, __FILE__, __LINE__, "Attempt to get the size of an invalid pointer", ptr); return 0; } } // unnamed namespace // Extract interesting stats struct TCMallocStats { uint64_t thread_bytes; // Bytes in thread caches uint64_t central_bytes; // Bytes in central cache uint64_t transfer_bytes; // Bytes in central transfer cache uint64_t metadata_bytes; // Bytes alloced for metadata PageHeap::Stats pageheap; // Stats from page heap }; // Get stats into "r". Also, if class_count != NULL, class_count[k] // will be set to the total number of objects of size class k in the // central cache, transfer cache, and per-thread caches. If small_spans // is non-NULL, it is filled. Same for large_spans. static void ExtractStats(TCMallocStats* r, uint64_t* class_count, PageHeap::SmallSpanStats* small_spans, PageHeap::LargeSpanStats* large_spans) { r->central_bytes = 0; r->transfer_bytes = 0; for (int cl = 0; cl < kNumClasses; ++cl) { const int length = Static::central_cache()[cl].length(); const int tc_length = Static::central_cache()[cl].tc_length(); const size_t cache_overhead = Static::central_cache()[cl].OverheadBytes(); const size_t size = static_cast( Static::sizemap()->ByteSizeForClass(cl)); r->central_bytes += (size * length) + cache_overhead; r->transfer_bytes += (size * tc_length); if (class_count) { // Sum the lengths of all per-class freelists, except the per-thread // freelists, which get counted when we call GetThreadStats(), below. class_count[cl] = length + tc_length; } } // Add stats from per-thread heaps r->thread_bytes = 0; { // scope SpinLockHolder h(Static::pageheap_lock()); ThreadCache::GetThreadStats(&r->thread_bytes, class_count); r->metadata_bytes = tcmalloc::metadata_system_bytes(); r->pageheap = Static::pageheap()->stats(); if (small_spans != NULL) { Static::pageheap()->GetSmallSpanStats(small_spans); } if (large_spans != NULL) { Static::pageheap()->GetLargeSpanStats(large_spans); } } } static double PagesToMiB(uint64_t pages) { return (pages << kPageShift) / 1048576.0; } // WRITE stats to "out" static void DumpStats(TCMalloc_Printer* out, int level) { TCMallocStats stats; uint64_t class_count[kNumClasses]; PageHeap::SmallSpanStats small; PageHeap::LargeSpanStats large; if (level >= 2) { ExtractStats(&stats, class_count, &small, &large); } else { ExtractStats(&stats, NULL, NULL, NULL); } static const double MiB = 1048576.0; const uint64_t virtual_memory_used = (stats.pageheap.system_bytes + stats.metadata_bytes); const uint64_t physical_memory_used = (virtual_memory_used - stats.pageheap.unmapped_bytes); const uint64_t bytes_in_use_by_app = (physical_memory_used - stats.metadata_bytes - stats.pageheap.free_bytes - stats.central_bytes - stats.transfer_bytes - stats.thread_bytes); #ifdef TCMALLOC_SMALL_BUT_SLOW out->printf( "NOTE: SMALL MEMORY MODEL IS IN USE, PERFORMANCE MAY SUFFER.\n"); #endif out->printf( "------------------------------------------------\n" "MALLOC: %12" PRIu64 " (%7.1f MiB) Bytes in use by application\n" "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in page heap freelist\n" "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in central cache freelist\n" "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in transfer cache freelist\n" "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in thread cache freelists\n" "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes in malloc metadata\n" "MALLOC: ------------\n" "MALLOC: = %12" PRIu64 " (%7.1f MiB) Actual memory used (physical + swap)\n" "MALLOC: + %12" PRIu64 " (%7.1f MiB) Bytes released to OS (aka unmapped)\n" "MALLOC: ------------\n" "MALLOC: = %12" PRIu64 " (%7.1f MiB) Virtual address space used\n" "MALLOC:\n" "MALLOC: %12" PRIu64 " Spans in use\n" "MALLOC: %12" PRIu64 " Thread heaps in use\n" "MALLOC: %12" PRIu64 " Tcmalloc page size\n" "------------------------------------------------\n" "Call ReleaseFreeMemory() to release freelist memory to the OS" " (via madvise()).\n" "Bytes released to the OS take up virtual address space" " but no physical memory.\n", bytes_in_use_by_app, bytes_in_use_by_app / MiB, stats.pageheap.free_bytes, stats.pageheap.free_bytes / MiB, stats.central_bytes, stats.central_bytes / MiB, stats.transfer_bytes, stats.transfer_bytes / MiB, stats.thread_bytes, stats.thread_bytes / MiB, stats.metadata_bytes, stats.metadata_bytes / MiB, physical_memory_used, physical_memory_used / MiB, stats.pageheap.unmapped_bytes, stats.pageheap.unmapped_bytes / MiB, virtual_memory_used, virtual_memory_used / MiB, uint64_t(Static::span_allocator()->inuse()), uint64_t(ThreadCache::HeapsInUse()), uint64_t(kPageSize)); if (level >= 2) { out->printf("------------------------------------------------\n"); out->printf("Total size of freelists for per-thread caches,\n"); out->printf("transfer cache, and central cache, by size class\n"); out->printf("------------------------------------------------\n"); uint64_t cumulative = 0; for (int cl = 0; cl < kNumClasses; ++cl) { if (class_count[cl] > 0) { uint64_t class_bytes = class_count[cl] * Static::sizemap()->ByteSizeForClass(cl); cumulative += class_bytes; out->printf("class %3d [ %8" PRIuS " bytes ] : " "%8" PRIu64 " objs; %5.1f MiB; %5.1f cum MiB\n", cl, Static::sizemap()->ByteSizeForClass(cl), class_count[cl], class_bytes / MiB, cumulative / MiB); } } // append page heap info int nonempty_sizes = 0; for (int s = 0; s < kMaxPages; s++) { if (small.normal_length[s] + small.returned_length[s] > 0) { nonempty_sizes++; } } out->printf("------------------------------------------------\n"); out->printf("PageHeap: %d sizes; %6.1f MiB free; %6.1f MiB unmapped\n", nonempty_sizes, stats.pageheap.free_bytes / MiB, stats.pageheap.unmapped_bytes / MiB); out->printf("------------------------------------------------\n"); uint64_t total_normal = 0; uint64_t total_returned = 0; for (int s = 0; s < kMaxPages; s++) { const int n_length = small.normal_length[s]; const int r_length = small.returned_length[s]; if (n_length + r_length > 0) { uint64_t n_pages = s * n_length; uint64_t r_pages = s * r_length; total_normal += n_pages; total_returned += r_pages; out->printf("%6u pages * %6u spans ~ %6.1f MiB; %6.1f MiB cum" "; unmapped: %6.1f MiB; %6.1f MiB cum\n", s, (n_length + r_length), PagesToMiB(n_pages + r_pages), PagesToMiB(total_normal + total_returned), PagesToMiB(r_pages), PagesToMiB(total_returned)); } } total_normal += large.normal_pages; total_returned += large.returned_pages; out->printf(">255 large * %6u spans ~ %6.1f MiB; %6.1f MiB cum" "; unmapped: %6.1f MiB; %6.1f MiB cum\n", static_cast(large.spans), PagesToMiB(large.normal_pages + large.returned_pages), PagesToMiB(total_normal + total_returned), PagesToMiB(large.returned_pages), PagesToMiB(total_returned)); } } static void PrintStats(int level) { const int kBufferSize = 16 << 10; char* buffer = new char[kBufferSize]; TCMalloc_Printer printer(buffer, kBufferSize); DumpStats(&printer, level); write(STDERR_FILENO, buffer, strlen(buffer)); delete[] buffer; } static void** DumpHeapGrowthStackTraces() { // Count how much space we need int needed_slots = 0; { SpinLockHolder h(Static::pageheap_lock()); for (StackTrace* t = Static::growth_stacks(); t != NULL; t = reinterpret_cast( t->stack[tcmalloc::kMaxStackDepth-1])) { needed_slots += 3 + t->depth; } needed_slots += 100; // Slop in case list grows needed_slots += needed_slots/8; // An extra 12.5% slop } void** result = new void*[needed_slots]; if (result == NULL) { Log(kLog, __FILE__, __LINE__, "tcmalloc: allocation failed for stack trace slots", needed_slots * sizeof(*result)); return NULL; } SpinLockHolder h(Static::pageheap_lock()); int used_slots = 0; for (StackTrace* t = Static::growth_stacks(); t != NULL; t = reinterpret_cast( t->stack[tcmalloc::kMaxStackDepth-1])) { ASSERT(used_slots < needed_slots); // Need to leave room for terminator if (used_slots + 3 + t->depth >= needed_slots) { // No more room break; } result[used_slots+0] = reinterpret_cast(static_cast(1)); result[used_slots+1] = reinterpret_cast(t->size); result[used_slots+2] = reinterpret_cast(t->depth); for (int d = 0; d < t->depth; d++) { result[used_slots+3+d] = t->stack[d]; } used_slots += 3 + t->depth; } result[used_slots] = reinterpret_cast(static_cast(0)); return result; } static void IterateOverRanges(void* arg, MallocExtension::RangeFunction func) { PageID page = 1; // Some code may assume that page==0 is never used bool done = false; while (!done) { // Accumulate a small number of ranges in a local buffer static const int kNumRanges = 16; static base::MallocRange ranges[kNumRanges]; int n = 0; { SpinLockHolder h(Static::pageheap_lock()); while (n < kNumRanges) { if (!Static::pageheap()->GetNextRange(page, &ranges[n])) { done = true; break; } else { uintptr_t limit = ranges[n].address + ranges[n].length; page = (limit + kPageSize - 1) >> kPageShift; n++; } } } for (int i = 0; i < n; i++) { (*func)(arg, &ranges[i]); } } } // TCMalloc's support for extra malloc interfaces class TCMallocImplementation : public MallocExtension { private: // ReleaseToSystem() might release more than the requested bytes because // the page heap releases at the span granularity, and spans are of wildly // different sizes. This member keeps track of the extra bytes bytes // released so that the app can periodically call ReleaseToSystem() to // release memory at a constant rate. // NOTE: Protected by Static::pageheap_lock(). size_t extra_bytes_released_; public: TCMallocImplementation() : extra_bytes_released_(0) { } virtual void GetStats(char* buffer, int buffer_length) { ASSERT(buffer_length > 0); TCMalloc_Printer printer(buffer, buffer_length); // Print level one stats unless lots of space is available if (buffer_length < 10000) { DumpStats(&printer, 1); } else { DumpStats(&printer, 2); } } // We may print an extra, tcmalloc-specific warning message here. virtual void GetHeapSample(MallocExtensionWriter* writer) { if (FLAGS_tcmalloc_sample_parameter == 0) { const char* const kWarningMsg = "%warn\n" "%warn This heap profile does not have any data in it, because\n" "%warn the application was run with heap sampling turned off.\n" "%warn To get useful data from GetHeapSample(), you must\n" "%warn set the environment variable TCMALLOC_SAMPLE_PARAMETER to\n" "%warn a positive sampling period, such as 524288.\n" "%warn\n"; writer->append(kWarningMsg, strlen(kWarningMsg)); } MallocExtension::GetHeapSample(writer); } virtual void** ReadStackTraces(int* sample_period) { tcmalloc::StackTraceTable table; { SpinLockHolder h(Static::pageheap_lock()); Span* sampled = Static::sampled_objects(); for (Span* s = sampled->next; s != sampled; s = s->next) { table.AddTrace(*reinterpret_cast(s->objects)); } } *sample_period = ThreadCache::GetCache()->GetSamplePeriod(); return table.ReadStackTracesAndClear(); // grabs and releases pageheap_lock } virtual void** ReadHeapGrowthStackTraces() { return DumpHeapGrowthStackTraces(); } virtual void Ranges(void* arg, RangeFunction func) { IterateOverRanges(arg, func); } virtual bool GetNumericProperty(const char* name, size_t* value) { ASSERT(name != NULL); if (strcmp(name, "generic.current_allocated_bytes") == 0) { TCMallocStats stats; ExtractStats(&stats, NULL, NULL, NULL); *value = stats.pageheap.system_bytes - stats.thread_bytes - stats.central_bytes - stats.transfer_bytes - stats.pageheap.free_bytes - stats.pageheap.unmapped_bytes; return true; } if (strcmp(name, "generic.heap_size") == 0) { TCMallocStats stats; ExtractStats(&stats, NULL, NULL, NULL); *value = stats.pageheap.system_bytes; return true; } if (strcmp(name, "tcmalloc.slack_bytes") == 0) { // Kept for backwards compatibility. Now defined externally as: // pageheap_free_bytes + pageheap_unmapped_bytes. SpinLockHolder l(Static::pageheap_lock()); PageHeap::Stats stats = Static::pageheap()->stats(); *value = stats.free_bytes + stats.unmapped_bytes; return true; } if (strcmp(name, "tcmalloc.central_cache_free_bytes") == 0) { TCMallocStats stats; ExtractStats(&stats, NULL, NULL, NULL); *value = stats.central_bytes; return true; } if (strcmp(name, "tcmalloc.transfer_cache_free_bytes") == 0) { TCMallocStats stats; ExtractStats(&stats, NULL, NULL, NULL); *value = stats.transfer_bytes; return true; } if (strcmp(name, "tcmalloc.thread_cache_free_bytes") == 0) { TCMallocStats stats; ExtractStats(&stats, NULL, NULL, NULL); *value = stats.thread_bytes; return true; } if (strcmp(name, "tcmalloc.pageheap_free_bytes") == 0) { SpinLockHolder l(Static::pageheap_lock()); *value = Static::pageheap()->stats().free_bytes; return true; } if (strcmp(name, "tcmalloc.pageheap_unmapped_bytes") == 0) { SpinLockHolder l(Static::pageheap_lock()); *value = Static::pageheap()->stats().unmapped_bytes; return true; } if (strcmp(name, "tcmalloc.max_total_thread_cache_bytes") == 0) { SpinLockHolder l(Static::pageheap_lock()); *value = ThreadCache::overall_thread_cache_size(); return true; } if (strcmp(name, "tcmalloc.current_total_thread_cache_bytes") == 0) { TCMallocStats stats; ExtractStats(&stats, NULL, NULL, NULL); *value = stats.thread_bytes; return true; } if (strcmp(name, "tcmalloc.aggressive_memory_decommit") == 0) { *value = size_t(Static::pageheap()->GetAggressiveDecommit()); return true; } return false; } virtual bool SetNumericProperty(const char* name, size_t value) { ASSERT(name != NULL); if (strcmp(name, "tcmalloc.max_total_thread_cache_bytes") == 0) { SpinLockHolder l(Static::pageheap_lock()); ThreadCache::set_overall_thread_cache_size(value); return true; } if (strcmp(name, "tcmalloc.aggressive_memory_decommit") == 0) { Static::pageheap()->SetAggressiveDecommit(value != 0); return true; } return false; } virtual void MarkThreadIdle() { ThreadCache::BecomeIdle(); } virtual void MarkThreadBusy(); // Implemented below virtual SysAllocator* GetSystemAllocator() { SpinLockHolder h(Static::pageheap_lock()); return sys_alloc; } virtual void SetSystemAllocator(SysAllocator* alloc) { SpinLockHolder h(Static::pageheap_lock()); sys_alloc = alloc; } virtual void ReleaseToSystem(size_t num_bytes) { SpinLockHolder h(Static::pageheap_lock()); if (num_bytes <= extra_bytes_released_) { // We released too much on a prior call, so don't release any // more this time. extra_bytes_released_ = extra_bytes_released_ - num_bytes; return; } num_bytes = num_bytes - extra_bytes_released_; // num_bytes might be less than one page. If we pass zero to // ReleaseAtLeastNPages, it won't do anything, so we release a whole // page now and let extra_bytes_released_ smooth it out over time. Length num_pages = max(num_bytes >> kPageShift, 1); size_t bytes_released = Static::pageheap()->ReleaseAtLeastNPages( num_pages) << kPageShift; if (bytes_released > num_bytes) { extra_bytes_released_ = bytes_released - num_bytes; } else { // The PageHeap wasn't able to release num_bytes. Don't try to // compensate with a big release next time. Specifically, // ReleaseFreeMemory() calls ReleaseToSystem(LONG_MAX). extra_bytes_released_ = 0; } } virtual void SetMemoryReleaseRate(double rate) { FLAGS_tcmalloc_release_rate = rate; } virtual double GetMemoryReleaseRate() { return FLAGS_tcmalloc_release_rate; } virtual size_t GetEstimatedAllocatedSize(size_t size) { if (size <= kMaxSize) { const size_t cl = Static::sizemap()->SizeClass(size); const size_t alloc_size = Static::sizemap()->ByteSizeForClass(cl); return alloc_size; } else { return tcmalloc::pages(size) << kPageShift; } } // This just calls GetSizeWithCallback, but because that's in an // unnamed namespace, we need to move the definition below it in the // file. virtual size_t GetAllocatedSize(const void* ptr); // This duplicates some of the logic in GetSizeWithCallback, but is // faster. This is important on OS X, where this function is called // on every allocation operation. virtual Ownership GetOwnership(const void* ptr) { const PageID p = reinterpret_cast(ptr) >> kPageShift; // The rest of tcmalloc assumes that all allocated pointers use at // most kAddressBits bits. If ptr doesn't, then it definitely // wasn't alloacted by tcmalloc. if ((p >> (kAddressBits - kPageShift)) > 0) { return kNotOwned; } size_t cl = Static::pageheap()->GetSizeClassIfCached(p); if (cl != 0) { return kOwned; } const Span *span = Static::pageheap()->GetDescriptor(p); return span ? kOwned : kNotOwned; } virtual void GetFreeListSizes(vector* v) { static const char* kCentralCacheType = "tcmalloc.central"; static const char* kTransferCacheType = "tcmalloc.transfer"; static const char* kThreadCacheType = "tcmalloc.thread"; static const char* kPageHeapType = "tcmalloc.page"; static const char* kPageHeapUnmappedType = "tcmalloc.page_unmapped"; static const char* kLargeSpanType = "tcmalloc.large"; static const char* kLargeUnmappedSpanType = "tcmalloc.large_unmapped"; v->clear(); // central class information int64 prev_class_size = 0; for (int cl = 1; cl < kNumClasses; ++cl) { size_t class_size = Static::sizemap()->ByteSizeForClass(cl); MallocExtension::FreeListInfo i; i.min_object_size = prev_class_size + 1; i.max_object_size = class_size; i.total_bytes_free = Static::central_cache()[cl].length() * class_size; i.type = kCentralCacheType; v->push_back(i); // transfer cache i.total_bytes_free = Static::central_cache()[cl].tc_length() * class_size; i.type = kTransferCacheType; v->push_back(i); prev_class_size = Static::sizemap()->ByteSizeForClass(cl); } // Add stats from per-thread heaps uint64_t class_count[kNumClasses]; memset(class_count, 0, sizeof(class_count)); { SpinLockHolder h(Static::pageheap_lock()); uint64_t thread_bytes = 0; ThreadCache::GetThreadStats(&thread_bytes, class_count); } prev_class_size = 0; for (int cl = 1; cl < kNumClasses; ++cl) { MallocExtension::FreeListInfo i; i.min_object_size = prev_class_size + 1; i.max_object_size = Static::sizemap()->ByteSizeForClass(cl); i.total_bytes_free = class_count[cl] * Static::sizemap()->ByteSizeForClass(cl); i.type = kThreadCacheType; v->push_back(i); } // append page heap info PageHeap::SmallSpanStats small; PageHeap::LargeSpanStats large; { SpinLockHolder h(Static::pageheap_lock()); Static::pageheap()->GetSmallSpanStats(&small); Static::pageheap()->GetLargeSpanStats(&large); } // large spans: mapped MallocExtension::FreeListInfo span_info; span_info.type = kLargeSpanType; span_info.max_object_size = (numeric_limits::max)(); span_info.min_object_size = kMaxPages << kPageShift; span_info.total_bytes_free = large.normal_pages << kPageShift; v->push_back(span_info); // large spans: unmapped span_info.type = kLargeUnmappedSpanType; span_info.total_bytes_free = large.returned_pages << kPageShift; v->push_back(span_info); // small spans for (int s = 1; s < kMaxPages; s++) { MallocExtension::FreeListInfo i; i.max_object_size = (s << kPageShift); i.min_object_size = ((s - 1) << kPageShift); i.type = kPageHeapType; i.total_bytes_free = (s << kPageShift) * small.normal_length[s]; v->push_back(i); i.type = kPageHeapUnmappedType; i.total_bytes_free = (s << kPageShift) * small.returned_length[s]; v->push_back(i); } } }; // The constructor allocates an object to ensure that initialization // runs before main(), and therefore we do not have a chance to become // multi-threaded before initialization. We also create the TSD key // here. Presumably by the time this constructor runs, glibc is in // good enough shape to handle pthread_key_create(). // // The constructor also takes the opportunity to tell STL to use // tcmalloc. We want to do this early, before construct time, so // all user STL allocations go through tcmalloc (which works really // well for STL). // // The destructor prints stats when the program exits. static int tcmallocguard_refcount = 0; // no lock needed: runs before main() TCMallocGuard::TCMallocGuard() { if (tcmallocguard_refcount++ == 0) { ReplaceSystemAlloc(); // defined in libc_override_*.h tc_free(tc_malloc(1)); ThreadCache::InitTSD(); tc_free(tc_malloc(1)); // Either we, or debugallocation.cc, or valgrind will control memory // management. We register our extension if we're the winner. #ifdef TCMALLOC_USING_DEBUGALLOCATION // Let debugallocation register its extension. #else if (RunningOnValgrind()) { // Let Valgrind uses its own malloc (so don't register our extension). } else { MallocExtension::Register(new TCMallocImplementation); } #endif } } TCMallocGuard::~TCMallocGuard() { if (--tcmallocguard_refcount == 0) { const char* env = NULL; if (!RunningOnValgrind()) { // Valgrind uses it's own malloc so we cannot do MALLOCSTATS env = getenv("MALLOCSTATS"); } if (env != NULL) { int level = atoi(env); if (level < 1) level = 1; PrintStats(level); } } } #ifndef WIN32_OVERRIDE_ALLOCATORS static TCMallocGuard module_enter_exit_hook; #endif //------------------------------------------------------------------- // Helpers for the exported routines below //------------------------------------------------------------------- static inline bool CheckCachedSizeClass(void *ptr) { PageID p = reinterpret_cast(ptr) >> kPageShift; size_t cached_value = Static::pageheap()->GetSizeClassIfCached(p); return cached_value == 0 || cached_value == Static::pageheap()->GetDescriptor(p)->sizeclass; } static inline void* CheckedMallocResult(void *result) { ASSERT(result == NULL || CheckCachedSizeClass(result)); return result; } static inline void* SpanToMallocResult(Span *span) { Static::pageheap()->CacheSizeClass(span->start, 0); return CheckedMallocResult(reinterpret_cast(span->start << kPageShift)); } static void* DoSampledAllocation(size_t size) { // Grab the stack trace outside the heap lock StackTrace tmp; tmp.depth = GetStackTrace(tmp.stack, tcmalloc::kMaxStackDepth, 1); tmp.size = size; SpinLockHolder h(Static::pageheap_lock()); // Allocate span Span *span = Static::pageheap()->New(tcmalloc::pages(size == 0 ? 1 : size)); if (UNLIKELY(span == NULL)) { return NULL; } // Allocate stack trace StackTrace *stack = Static::stacktrace_allocator()->New(); if (UNLIKELY(stack == NULL)) { // Sampling failed because of lack of memory return span; } *stack = tmp; span->sample = 1; span->objects = stack; tcmalloc::DLL_Prepend(Static::sampled_objects(), span); return SpanToMallocResult(span); } namespace { // Copy of FLAGS_tcmalloc_large_alloc_report_threshold with // automatic increases factored in. static int64_t large_alloc_threshold = (kPageSize > FLAGS_tcmalloc_large_alloc_report_threshold ? kPageSize : FLAGS_tcmalloc_large_alloc_report_threshold); static void ReportLargeAlloc(Length num_pages, void* result) { StackTrace stack; stack.depth = GetStackTrace(stack.stack, tcmalloc::kMaxStackDepth, 1); static const int N = 1000; char buffer[N]; TCMalloc_Printer printer(buffer, N); printer.printf("tcmalloc: large alloc %" PRIu64 " bytes == %p @ ", static_cast(num_pages) << kPageShift, result); for (int i = 0; i < stack.depth; i++) { printer.printf(" %p", stack.stack[i]); } printer.printf("\n"); write(STDERR_FILENO, buffer, strlen(buffer)); } inline void* cpp_alloc(size_t size, bool nothrow); inline void* do_malloc(size_t size); inline void* do_malloc_no_errno(size_t size); // TODO(willchan): Investigate whether or not lining this much is harmful to // performance. // This is equivalent to do_malloc() except when tc_new_mode is set to true. // Otherwise, it will run the std::new_handler if set. inline void* do_malloc_or_cpp_alloc(size_t size) { return tc_new_mode ? cpp_alloc(size, true) : do_malloc(size); } inline void* do_malloc_no_errno_or_cpp_alloc(size_t size) { return tc_new_mode ? cpp_alloc(size, true) : do_malloc_no_errno(size); } void* cpp_memalign(size_t align, size_t size); void* do_memalign(size_t align, size_t size); inline void* do_memalign_or_cpp_memalign(size_t align, size_t size) { return tc_new_mode ? cpp_memalign(align, size) : do_memalign(align, size); } // Must be called with the page lock held. inline bool should_report_large(Length num_pages) { const int64 threshold = large_alloc_threshold; if (threshold > 0 && num_pages >= (threshold >> kPageShift)) { // Increase the threshold by 1/8 every time we generate a report. // We cap the threshold at 8GiB to avoid overflow problems. large_alloc_threshold = (threshold + threshold/8 < 8ll<<30 ? threshold + threshold/8 : 8ll<<30); return true; } return false; } // Helper for do_malloc(). inline void* do_malloc_pages(ThreadCache* heap, size_t size) { void* result; bool report_large; Length num_pages = tcmalloc::pages(size); size = num_pages << kPageShift; if ((FLAGS_tcmalloc_sample_parameter > 0) && heap->SampleAllocation(size)) { result = DoSampledAllocation(size); SpinLockHolder h(Static::pageheap_lock()); report_large = should_report_large(num_pages); } else { SpinLockHolder h(Static::pageheap_lock()); Span* span = Static::pageheap()->New(num_pages); result = (UNLIKELY(span == NULL) ? NULL : SpanToMallocResult(span)); report_large = should_report_large(num_pages); } if (report_large) { ReportLargeAlloc(num_pages, result); } return result; } inline void* do_malloc_small(ThreadCache* heap, size_t size) { ASSERT(Static::IsInited()); ASSERT(heap != NULL); size_t cl = Static::sizemap()->SizeClass(size); size = Static::sizemap()->class_to_size(cl); if (UNLIKELY(FLAGS_tcmalloc_sample_parameter > 0) && heap->SampleAllocation(size)) { return DoSampledAllocation(size); } else { // The common case, and also the simplest. This just pops the // size-appropriate freelist, after replenishing it if it's empty. return CheckedMallocResult(heap->Allocate(size, cl)); } } inline void* do_malloc_no_errno(size_t size) { if (ThreadCache::have_tls && LIKELY(size < ThreadCache::MinSizeForSlowPath())) { return do_malloc_small(ThreadCache::GetCacheWhichMustBePresent(), size); } else if (size <= kMaxSize) { return do_malloc_small(ThreadCache::GetCache(), size); } else { return do_malloc_pages(ThreadCache::GetCache(), size); } } inline void* do_malloc(size_t size) { void* ret = do_malloc_no_errno(size); if (UNLIKELY(ret == NULL)) errno = ENOMEM; return ret; } inline void* do_calloc(size_t n, size_t elem_size) { // Overflow check const size_t size = n * elem_size; if (elem_size != 0 && size / elem_size != n) return NULL; void* result = do_malloc_no_errno_or_cpp_alloc(size); if (result == NULL) { errno = ENOMEM; } else { memset(result, 0, size); } return result; } // If ptr is NULL, do nothing. Otherwise invoke the given function. inline void free_null_or_invalid(void* ptr, void (*invalid_free_fn)(void*)) { if (ptr != NULL) { (*invalid_free_fn)(ptr); } } // Helper for do_free_with_callback(), below. Inputs: // ptr is object to be freed // invalid_free_fn is a function that gets invoked on certain "bad frees" // heap is the ThreadCache for this thread, or NULL if it isn't known // heap_must_be_valid is whether heap is known to be non-NULL // // This function may only be used after Static::IsInited() is true. // // We can usually detect the case where ptr is not pointing to a page that // tcmalloc is using, and in those cases we invoke invalid_free_fn. // // To maximize speed in the common case, we usually get here with // heap_must_be_valid being a manifest constant equal to true. inline void do_free_helper(void* ptr, void (*invalid_free_fn)(void*), ThreadCache* heap, bool heap_must_be_valid) { ASSERT((Static::IsInited() && heap != NULL) || !heap_must_be_valid); if (!heap_must_be_valid && !Static::IsInited()) { // We called free() before malloc(). This can occur if the // (system) malloc() is called before tcmalloc is loaded, and then // free() is called after tcmalloc is loaded (and tc_free has // replaced free), but before the global constructor has run that // sets up the tcmalloc data structures. free_null_or_invalid(ptr, invalid_free_fn); return; } Span* span = NULL; const PageID p = reinterpret_cast(ptr) >> kPageShift; size_t cl = Static::pageheap()->GetSizeClassIfCached(p); if (UNLIKELY(cl == 0)) { span = Static::pageheap()->GetDescriptor(p); if (UNLIKELY(!span)) { // span can be NULL because the pointer passed in is NULL or invalid // (not something returned by malloc or friends), or because the // pointer was allocated with some other allocator besides // tcmalloc. The latter can happen if tcmalloc is linked in via // a dynamic library, but is not listed last on the link line. // In that case, libraries after it on the link line will // allocate with libc malloc, but free with tcmalloc's free. free_null_or_invalid(ptr, invalid_free_fn); return; } cl = span->sizeclass; Static::pageheap()->CacheSizeClass(p, cl); } ASSERT(ptr != NULL); if (LIKELY(cl != 0)) { ASSERT(!Static::pageheap()->GetDescriptor(p)->sample); if (heap_must_be_valid || heap != NULL) { heap->Deallocate(ptr, cl); } else { // Delete directly into central cache tcmalloc::SLL_SetNext(ptr, NULL); Static::central_cache()[cl].InsertRange(ptr, ptr, 1); } } else { SpinLockHolder h(Static::pageheap_lock()); ASSERT(reinterpret_cast(ptr) % kPageSize == 0); ASSERT(span != NULL && span->start == p); if (span->sample) { StackTrace* st = reinterpret_cast(span->objects); tcmalloc::DLL_Remove(span); Static::stacktrace_allocator()->Delete(st); span->objects = NULL; } Static::pageheap()->Delete(span); } } // Helper for the object deletion (free, delete, etc.). Inputs: // ptr is object to be freed // invalid_free_fn is a function that gets invoked on certain "bad frees" // // We can usually detect the case where ptr is not pointing to a page that // tcmalloc is using, and in those cases we invoke invalid_free_fn. inline void do_free_with_callback(void* ptr, void (*invalid_free_fn)(void*)) { ThreadCache* heap = NULL; if (LIKELY(ThreadCache::IsFastPathAllowed())) { heap = ThreadCache::GetCacheWhichMustBePresent(); do_free_helper(ptr, invalid_free_fn, heap, true); } else { heap = ThreadCache::GetCacheIfPresent(); do_free_helper(ptr, invalid_free_fn, heap, false); } } // The default "do_free" that uses the default callback. inline void do_free(void* ptr) { return do_free_with_callback(ptr, &InvalidFree); } // NOTE: some logic here is duplicated in GetOwnership (above), for // speed. If you change this function, look at that one too. inline size_t GetSizeWithCallback(const void* ptr, size_t (*invalid_getsize_fn)(const void*)) { if (ptr == NULL) return 0; const PageID p = reinterpret_cast(ptr) >> kPageShift; size_t cl = Static::pageheap()->GetSizeClassIfCached(p); if (cl != 0) { return Static::sizemap()->ByteSizeForClass(cl); } else { const Span *span = Static::pageheap()->GetDescriptor(p); if (UNLIKELY(span == NULL)) { // means we do not own this memory return (*invalid_getsize_fn)(ptr); } else if (span->sizeclass != 0) { Static::pageheap()->CacheSizeClass(p, span->sizeclass); return Static::sizemap()->ByteSizeForClass(span->sizeclass); } else { return span->length << kPageShift; } } } // This lets you call back to a given function pointer if ptr is invalid. // It is used primarily by windows code which wants a specialized callback. inline void* do_realloc_with_callback( void* old_ptr, size_t new_size, void (*invalid_free_fn)(void*), size_t (*invalid_get_size_fn)(const void*)) { // Get the size of the old entry const size_t old_size = GetSizeWithCallback(old_ptr, invalid_get_size_fn); // Reallocate if the new size is larger than the old size, // or if the new size is significantly smaller than the old size. // We do hysteresis to avoid resizing ping-pongs: // . If we need to grow, grow to max(new_size, old_size * 1.X) // . Don't shrink unless new_size < old_size * 0.Y // X and Y trade-off time for wasted space. For now we do 1.25 and 0.5. const size_t lower_bound_to_grow = old_size + old_size / 4ul; const size_t upper_bound_to_shrink = old_size / 2ul; if ((new_size > old_size) || (new_size < upper_bound_to_shrink)) { // Need to reallocate. void* new_ptr = NULL; if (new_size > old_size && new_size < lower_bound_to_grow) { new_ptr = do_malloc_no_errno_or_cpp_alloc(lower_bound_to_grow); } if (new_ptr == NULL) { // Either new_size is not a tiny increment, or last do_malloc failed. new_ptr = do_malloc_or_cpp_alloc(new_size); } if (UNLIKELY(new_ptr == NULL)) { return NULL; } MallocHook::InvokeNewHook(new_ptr, new_size); memcpy(new_ptr, old_ptr, ((old_size < new_size) ? old_size : new_size)); MallocHook::InvokeDeleteHook(old_ptr); // We could use a variant of do_free() that leverages the fact // that we already know the sizeclass of old_ptr. The benefit // would be small, so don't bother. do_free_with_callback(old_ptr, invalid_free_fn); return new_ptr; } else { // We still need to call hooks to report the updated size: MallocHook::InvokeDeleteHook(old_ptr); MallocHook::InvokeNewHook(old_ptr, new_size); return old_ptr; } } inline void* do_realloc(void* old_ptr, size_t new_size) { return do_realloc_with_callback(old_ptr, new_size, &InvalidFree, &InvalidGetSizeForRealloc); } // For use by exported routines below that want specific alignments // // Note: this code can be slow for alignments > 16, and can // significantly fragment memory. The expectation is that // memalign/posix_memalign/valloc/pvalloc will not be invoked very // often. This requirement simplifies our implementation and allows // us to tune for expected allocation patterns. void* do_memalign(size_t align, size_t size) { ASSERT((align & (align - 1)) == 0); ASSERT(align > 0); if (size + align < size) return NULL; // Overflow // Fall back to malloc if we would already align this memory access properly. if (align <= AlignmentForSize(size)) { void* p = do_malloc(size); ASSERT((reinterpret_cast(p) % align) == 0); return p; } if (UNLIKELY(Static::pageheap() == NULL)) ThreadCache::InitModule(); // Allocate at least one byte to avoid boundary conditions below if (size == 0) size = 1; if (size <= kMaxSize && align < kPageSize) { // Search through acceptable size classes looking for one with // enough alignment. This depends on the fact that // InitSizeClasses() currently produces several size classes that // are aligned at powers of two. We will waste time and space if // we miss in the size class array, but that is deemed acceptable // since memalign() should be used rarely. int cl = Static::sizemap()->SizeClass(size); while (cl < kNumClasses && ((Static::sizemap()->class_to_size(cl) & (align - 1)) != 0)) { cl++; } if (cl < kNumClasses) { ThreadCache* heap = ThreadCache::GetCache(); size = Static::sizemap()->class_to_size(cl); return CheckedMallocResult(heap->Allocate(size, cl)); } } // We will allocate directly from the page heap SpinLockHolder h(Static::pageheap_lock()); if (align <= kPageSize) { // Any page-level allocation will be fine // TODO: We could put the rest of this page in the appropriate // TODO: cache but it does not seem worth it. Span* span = Static::pageheap()->New(tcmalloc::pages(size)); return UNLIKELY(span == NULL) ? NULL : SpanToMallocResult(span); } // Allocate extra pages and carve off an aligned portion const Length alloc = tcmalloc::pages(size + align); Span* span = Static::pageheap()->New(alloc); if (UNLIKELY(span == NULL)) return NULL; // Skip starting portion so that we end up aligned Length skip = 0; while ((((span->start+skip) << kPageShift) & (align - 1)) != 0) { skip++; } ASSERT(skip < alloc); if (skip > 0) { Span* rest = Static::pageheap()->Split(span, skip); Static::pageheap()->Delete(span); span = rest; } // Skip trailing portion that we do not need to return const Length needed = tcmalloc::pages(size); ASSERT(span->length >= needed); if (span->length > needed) { Span* trailer = Static::pageheap()->Split(span, needed); Static::pageheap()->Delete(trailer); } return SpanToMallocResult(span); } // Helpers for use by exported routines below: inline void do_malloc_stats() { PrintStats(1); } inline int do_mallopt(int cmd, int value) { return 1; // Indicates error } #ifdef HAVE_STRUCT_MALLINFO inline struct mallinfo do_mallinfo() { TCMallocStats stats; ExtractStats(&stats, NULL, NULL, NULL); // Just some of the fields are filled in. struct mallinfo info; memset(&info, 0, sizeof(info)); // Unfortunately, the struct contains "int" field, so some of the // size values will be truncated. info.arena = static_cast(stats.pageheap.system_bytes); info.fsmblks = static_cast(stats.thread_bytes + stats.central_bytes + stats.transfer_bytes); info.fordblks = static_cast(stats.pageheap.free_bytes + stats.pageheap.unmapped_bytes); info.uordblks = static_cast(stats.pageheap.system_bytes - stats.thread_bytes - stats.central_bytes - stats.transfer_bytes - stats.pageheap.free_bytes - stats.pageheap.unmapped_bytes); return info; } #endif // HAVE_STRUCT_MALLINFO static SpinLock set_new_handler_lock(SpinLock::LINKER_INITIALIZED); inline void* cpp_alloc(size_t size, bool nothrow) { #ifdef PREANSINEW return do_malloc(size); #else for (;;) { void* p = do_malloc_no_errno(size); if (UNLIKELY(p == NULL)) { // allocation failed // Get the current new handler. NB: this function is not // thread-safe. We make a feeble stab at making it so here, but // this lock only protects against tcmalloc interfering with // itself, not with other libraries calling set_new_handler. std::new_handler nh; { SpinLockHolder h(&set_new_handler_lock); nh = std::set_new_handler(0); (void) std::set_new_handler(nh); } #if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) if (nh) { // Since exceptions are disabled, we don't really know if new_handler // failed. Assume it will abort if it fails. (*nh)(); continue; } goto fail; #else // If no new_handler is established, the allocation failed. if (!nh) { if (nothrow) goto fail; throw std::bad_alloc(); } // Otherwise, try the new_handler. If it returns, retry the // allocation. If it throws std::bad_alloc, fail the allocation. // if it throws something else, don't interfere. try { (*nh)(); } catch (const std::bad_alloc&) { if (!nothrow) throw; goto fail; } #endif // (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) } else { // allocation success return p; } #endif // PREANSINEW } fail: errno = ENOMEM; return 0; } void* cpp_memalign(size_t align, size_t size) { for (;;) { void* p = do_memalign(align, size); #ifdef PREANSINEW return p; #else if (UNLIKELY(p == NULL)) { // allocation failed // Get the current new handler. NB: this function is not // thread-safe. We make a feeble stab at making it so here, but // this lock only protects against tcmalloc interfering with // itself, not with other libraries calling set_new_handler. std::new_handler nh; { SpinLockHolder h(&set_new_handler_lock); nh = std::set_new_handler(0); (void) std::set_new_handler(nh); } #if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) if (nh) { // Since exceptions are disabled, we don't really know if new_handler // failed. Assume it will abort if it fails. (*nh)(); continue; } return 0; #else // If no new_handler is established, the allocation failed. if (!nh) return 0; // Otherwise, try the new_handler. If it returns, retry the // allocation. If it throws std::bad_alloc, fail the allocation. // if it throws something else, don't interfere. try { (*nh)(); } catch (const std::bad_alloc&) { return p; } #endif // (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) } else { // allocation success return p; } #endif // PREANSINEW } } } // end unnamed namespace // As promised, the definition of this function, declared above. size_t TCMallocImplementation::GetAllocatedSize(const void* ptr) { if (ptr == NULL) return 0; ASSERT(TCMallocImplementation::GetOwnership(ptr) != TCMallocImplementation::kNotOwned); return GetSizeWithCallback(ptr, &InvalidGetAllocatedSize); } void TCMallocImplementation::MarkThreadBusy() { // Allocate to force the creation of a thread cache, but avoid // invoking any hooks. do_free(do_malloc(0)); } //------------------------------------------------------------------- // Exported routines //------------------------------------------------------------------- extern "C" PERFTOOLS_DLL_DECL const char* tc_version( int* major, int* minor, const char** patch) __THROW { if (major) *major = TC_VERSION_MAJOR; if (minor) *minor = TC_VERSION_MINOR; if (patch) *patch = TC_VERSION_PATCH; return TC_VERSION_STRING; } // This function behaves similarly to MSVC's _set_new_mode. // If flag is 0 (default), calls to malloc will behave normally. // If flag is 1, calls to malloc will behave like calls to new, // and the std_new_handler will be invoked on failure. // Returns the previous mode. extern "C" PERFTOOLS_DLL_DECL int tc_set_new_mode(int flag) __THROW { int old_mode = tc_new_mode; tc_new_mode = flag; return old_mode; } #ifndef TCMALLOC_USING_DEBUGALLOCATION // debugallocation.cc defines its own // CAVEAT: The code structure below ensures that MallocHook methods are always // called from the stack frame of the invoked allocation function. // heap-checker.cc depends on this to start a stack trace from // the call to the (de)allocation function. extern "C" PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) __THROW { void* result = do_malloc_or_cpp_alloc(size); MallocHook::InvokeNewHook(result, size); return result; } extern "C" PERFTOOLS_DLL_DECL void tc_free(void* ptr) __THROW { MallocHook::InvokeDeleteHook(ptr); do_free(ptr); } extern "C" PERFTOOLS_DLL_DECL void* tc_calloc(size_t n, size_t elem_size) __THROW { void* result = do_calloc(n, elem_size); MallocHook::InvokeNewHook(result, n * elem_size); return result; } extern "C" PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) __THROW { MallocHook::InvokeDeleteHook(ptr); do_free(ptr); } extern "C" PERFTOOLS_DLL_DECL void* tc_realloc(void* old_ptr, size_t new_size) __THROW { if (old_ptr == NULL) { void* result = do_malloc_or_cpp_alloc(new_size); MallocHook::InvokeNewHook(result, new_size); return result; } if (new_size == 0) { MallocHook::InvokeDeleteHook(old_ptr); do_free(old_ptr); return NULL; } return do_realloc(old_ptr, new_size); } extern "C" PERFTOOLS_DLL_DECL void* tc_new(size_t size) { void* p = cpp_alloc(size, false); // We keep this next instruction out of cpp_alloc for a reason: when // it's in, and new just calls cpp_alloc, the optimizer may fold the // new call into cpp_alloc, which messes up our whole section-based // stacktracing (see ATTRIBUTE_SECTION, above). This ensures cpp_alloc // isn't the last thing this fn calls, and prevents the folding. MallocHook::InvokeNewHook(p, size); return p; } extern "C" PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size, const std::nothrow_t&) __THROW { void* p = cpp_alloc(size, true); MallocHook::InvokeNewHook(p, size); return p; } extern "C" PERFTOOLS_DLL_DECL void tc_delete(void* p) __THROW { MallocHook::InvokeDeleteHook(p); do_free(p); } // Standard C++ library implementations define and use this // (via ::operator delete(ptr, nothrow)). // But it's really the same as normal delete, so we just do the same thing. extern "C" PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p, const std::nothrow_t&) __THROW { MallocHook::InvokeDeleteHook(p); do_free(p); } extern "C" PERFTOOLS_DLL_DECL void* tc_newarray(size_t size) { void* p = cpp_alloc(size, false); // We keep this next instruction out of cpp_alloc for a reason: when // it's in, and new just calls cpp_alloc, the optimizer may fold the // new call into cpp_alloc, which messes up our whole section-based // stacktracing (see ATTRIBUTE_SECTION, above). This ensures cpp_alloc // isn't the last thing this fn calls, and prevents the folding. MallocHook::InvokeNewHook(p, size); return p; } extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size, const std::nothrow_t&) __THROW { void* p = cpp_alloc(size, true); MallocHook::InvokeNewHook(p, size); return p; } extern "C" PERFTOOLS_DLL_DECL void tc_deletearray(void* p) __THROW { MallocHook::InvokeDeleteHook(p); do_free(p); } extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p, const std::nothrow_t&) __THROW { MallocHook::InvokeDeleteHook(p); do_free(p); } extern "C" PERFTOOLS_DLL_DECL void* tc_memalign(size_t align, size_t size) __THROW { void* result = do_memalign_or_cpp_memalign(align, size); MallocHook::InvokeNewHook(result, size); return result; } extern "C" PERFTOOLS_DLL_DECL int tc_posix_memalign( void** result_ptr, size_t align, size_t size) __THROW { if (((align % sizeof(void*)) != 0) || ((align & (align - 1)) != 0) || (align == 0)) { return EINVAL; } void* result = do_memalign_or_cpp_memalign(align, size); MallocHook::InvokeNewHook(result, size); if (UNLIKELY(result == NULL)) { return ENOMEM; } else { *result_ptr = result; return 0; } } static size_t pagesize = 0; extern "C" PERFTOOLS_DLL_DECL void* tc_valloc(size_t size) __THROW { // Allocate page-aligned object of length >= size bytes if (pagesize == 0) pagesize = getpagesize(); void* result = do_memalign_or_cpp_memalign(pagesize, size); MallocHook::InvokeNewHook(result, size); return result; } extern "C" PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t size) __THROW { // Round up size to a multiple of pagesize if (pagesize == 0) pagesize = getpagesize(); if (size == 0) { // pvalloc(0) should allocate one page, according to size = pagesize; // http://man.free4web.biz/man3/libmpatrol.3.html } size = (size + pagesize - 1) & ~(pagesize - 1); void* result = do_memalign_or_cpp_memalign(pagesize, size); MallocHook::InvokeNewHook(result, size); return result; } extern "C" PERFTOOLS_DLL_DECL void tc_malloc_stats(void) __THROW { do_malloc_stats(); } extern "C" PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) __THROW { return do_mallopt(cmd, value); } #ifdef HAVE_STRUCT_MALLINFO extern "C" PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) __THROW { return do_mallinfo(); } #endif extern "C" PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) __THROW { return MallocExtension::instance()->GetAllocatedSize(ptr); } extern "C" PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) __THROW { void* result = do_malloc(size); MallocHook::InvokeNewHook(result, size); return result; } #endif // TCMALLOC_USING_DEBUGALLOCATION gperftools-2.4/src/common.h0000644000000000000000000002516712450132572012676 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Common definitions for tcmalloc code. #ifndef TCMALLOC_COMMON_H_ #define TCMALLOC_COMMON_H_ #include "config.h" #include // for size_t #ifdef HAVE_STDINT_H #include // for uintptr_t, uint64_t #endif #include "internal_logging.h" // for ASSERT, etc #include "base/basictypes.h" // for LIKELY, etc #ifdef HAVE_BUILTIN_EXPECT #define LIKELY(x) __builtin_expect(!!(x), 1) #define UNLIKELY(x) __builtin_expect(!!(x), 0) #else #define LIKELY(x) (x) #define UNLIKELY(x) (x) #endif // Type that can hold a page number typedef uintptr_t PageID; // Type that can hold the length of a run of pages typedef uintptr_t Length; //------------------------------------------------------------------- // Configuration //------------------------------------------------------------------- #if defined(TCMALLOC_ALIGN_8BYTES) // Unless we force to use 8 bytes alignment we use an alignment of // at least 16 bytes to statisfy requirements for some SSE types. // Keep in mind when using the 16 bytes alignment you can have a space // waste due alignment of 25%. (eg malloc of 24 bytes will get 32 bytes) static const size_t kMinAlign = 8; // Number of classes created until reach page size 128. static const size_t kBaseClasses = 16; #else static const size_t kMinAlign = 16; static const size_t kBaseClasses = 9; #endif // Using large pages speeds up the execution at a cost of larger memory use. // Deallocation may speed up by a factor as the page map gets 8x smaller, so // lookups in the page map result in fewer L2 cache misses, which translates to // speedup for application/platform combinations with high L2 cache pressure. // As the number of size classes increases with large pages, we increase // the thread cache allowance to avoid passing more free ranges to and from // central lists. Also, larger pages are less likely to get freed. // These two factors cause a bounded increase in memory use. #if defined(TCMALLOC_32K_PAGES) static const size_t kPageShift = 15; static const size_t kNumClasses = kBaseClasses + 69; #elif defined(TCMALLOC_64K_PAGES) static const size_t kPageShift = 16; static const size_t kNumClasses = kBaseClasses + 73; #else static const size_t kPageShift = 13; static const size_t kNumClasses = kBaseClasses + 79; #endif static const size_t kMaxThreadCacheSize = 4 << 20; static const size_t kPageSize = 1 << kPageShift; static const size_t kMaxSize = 256 * 1024; static const size_t kAlignment = 8; static const size_t kLargeSizeClass = 0; // For all span-lengths < kMaxPages we keep an exact-size list. static const size_t kMaxPages = 1 << (20 - kPageShift); // Default bound on the total amount of thread caches. #ifdef TCMALLOC_SMALL_BUT_SLOW // Make the overall thread cache no bigger than that of a single thread // for the small memory footprint case. static const size_t kDefaultOverallThreadCacheSize = kMaxThreadCacheSize; #else static const size_t kDefaultOverallThreadCacheSize = 8u * kMaxThreadCacheSize; #endif // Lower bound on the per-thread cache sizes static const size_t kMinThreadCacheSize = kMaxSize * 2; // The number of bytes one ThreadCache will steal from another when // the first ThreadCache is forced to Scavenge(), delaying the // next call to Scavenge for this thread. static const size_t kStealAmount = 1 << 16; // The number of times that a deallocation can cause a freelist to // go over its max_length() before shrinking max_length(). static const int kMaxOverages = 3; // Maximum length we allow a per-thread free-list to have before we // move objects from it into the corresponding central free-list. We // want this big to avoid locking the central free-list too often. It // should not hurt to make this list somewhat big because the // scavenging code will shrink it down when its contents are not in use. static const int kMaxDynamicFreeListLength = 8192; static const Length kMaxValidPages = (~static_cast(0)) >> kPageShift; #if defined __x86_64__ // All current and planned x86_64 processors only look at the lower 48 bits // in virtual to physical address translation. The top 16 are thus unused. // TODO(rus): Under what operating systems can we increase it safely to 17? // This lets us use smaller page maps. On first allocation, a 36-bit page map // uses only 96 KB instead of the 4.5 MB used by a 52-bit page map. static const int kAddressBits = (sizeof(void*) < 8 ? (8 * sizeof(void*)) : 48); #else static const int kAddressBits = 8 * sizeof(void*); #endif namespace tcmalloc { // Convert byte size into pages. This won't overflow, but may return // an unreasonably large value if bytes is huge enough. inline Length pages(size_t bytes) { return (bytes >> kPageShift) + ((bytes & (kPageSize - 1)) > 0 ? 1 : 0); } // For larger allocation sizes, we use larger memory alignments to // reduce the number of size classes. int AlignmentForSize(size_t size); // Size-class information + mapping class SizeMap { private: // Number of objects to move between a per-thread list and a central // list in one shot. We want this to be not too small so we can // amortize the lock overhead for accessing the central list. Making // it too big may temporarily cause unnecessary memory wastage in the // per-thread free list until the scavenger cleans up the list. int num_objects_to_move_[kNumClasses]; //------------------------------------------------------------------- // Mapping from size to size_class and vice versa //------------------------------------------------------------------- // Sizes <= 1024 have an alignment >= 8. So for such sizes we have an // array indexed by ceil(size/8). Sizes > 1024 have an alignment >= 128. // So for these larger sizes we have an array indexed by ceil(size/128). // // We flatten both logical arrays into one physical array and use // arithmetic to compute an appropriate index. The constants used by // ClassIndex() were selected to make the flattening work. // // Examples: // Size Expression Index // ------------------------------------------------------- // 0 (0 + 7) / 8 0 // 1 (1 + 7) / 8 1 // ... // 1024 (1024 + 7) / 8 128 // 1025 (1025 + 127 + (120<<7)) / 128 129 // ... // 32768 (32768 + 127 + (120<<7)) / 128 376 static const int kMaxSmallSize = 1024; static const size_t kClassArraySize = ((kMaxSize + 127 + (120 << 7)) >> 7) + 1; unsigned char class_array_[kClassArraySize]; // Compute index of the class_array[] entry for a given size static inline size_t ClassIndex(int s) { // Use unsigned arithmetic to avoid unnecessary sign extensions. ASSERT(0 <= s); ASSERT(s <= kMaxSize); if (LIKELY(s <= kMaxSmallSize)) { return (static_cast(s) + 7) >> 3; } else { return (static_cast(s) + 127 + (120 << 7)) >> 7; } } int NumMoveSize(size_t size); // Mapping from size class to max size storable in that class size_t class_to_size_[kNumClasses]; // Mapping from size class to number of pages to allocate at a time size_t class_to_pages_[kNumClasses]; public: // Constructor should do nothing since we rely on explicit Init() // call, which may or may not be called before the constructor runs. SizeMap() { } // Initialize the mapping arrays void Init(); inline int SizeClass(int size) { return class_array_[ClassIndex(size)]; } // Get the byte-size for a specified class inline size_t ByteSizeForClass(size_t cl) { return class_to_size_[cl]; } // Mapping from size class to max size storable in that class inline size_t class_to_size(size_t cl) { return class_to_size_[cl]; } // Mapping from size class to number of pages to allocate at a time inline size_t class_to_pages(size_t cl) { return class_to_pages_[cl]; } // Number of objects to move between a per-thread list and a central // list in one shot. We want this to be not too small so we can // amortize the lock overhead for accessing the central list. Making // it too big may temporarily cause unnecessary memory wastage in the // per-thread free list until the scavenger cleans up the list. inline int num_objects_to_move(size_t cl) { return num_objects_to_move_[cl]; } }; // Allocates "bytes" worth of memory and returns it. Increments // metadata_system_bytes appropriately. May return NULL if allocation // fails. Requires pageheap_lock is held. void* MetaDataAlloc(size_t bytes); // Returns the total number of bytes allocated from the system. // Requires pageheap_lock is held. uint64_t metadata_system_bytes(); // size/depth are made the same size as a pointer so that some generic // code below can conveniently cast them back and forth to void*. static const int kMaxStackDepth = 31; struct StackTrace { uintptr_t size; // Size of object uintptr_t depth; // Number of PC values stored in array below void* stack[kMaxStackDepth]; }; } // namespace tcmalloc #endif // TCMALLOC_COMMON_H_ gperftools-2.4/src/internal_logging.h0000644000000000000000000001175512440704174014730 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Internal logging and related utility routines. #ifndef TCMALLOC_INTERNAL_LOGGING_H_ #define TCMALLOC_INTERNAL_LOGGING_H_ #include #include // for size_t #if defined HAVE_STDINT_H #include #elif defined HAVE_INTTYPES_H #include #else #include #endif //------------------------------------------------------------------- // Utility routines //------------------------------------------------------------------- // Safe logging helper: we write directly to the stderr file // descriptor and avoid FILE buffering because that may invoke // malloc(). // // Example: // Log(kLog, __FILE__, __LINE__, "error", bytes); namespace tcmalloc { enum LogMode { kLog, // Just print the message kCrash, // Print the message and crash kCrashWithStats // Print the message, some stats, and crash }; class Logger; // A LogItem holds any of the argument types that can be passed to Log() class LogItem { public: LogItem() : tag_(kEnd) { } LogItem(const char* v) : tag_(kStr) { u_.str = v; } LogItem(int v) : tag_(kSigned) { u_.snum = v; } LogItem(long v) : tag_(kSigned) { u_.snum = v; } LogItem(long long v) : tag_(kSigned) { u_.snum = v; } LogItem(unsigned int v) : tag_(kUnsigned) { u_.unum = v; } LogItem(unsigned long v) : tag_(kUnsigned) { u_.unum = v; } LogItem(unsigned long long v) : tag_(kUnsigned) { u_.unum = v; } LogItem(const void* v) : tag_(kPtr) { u_.ptr = v; } private: friend class Logger; enum Tag { kStr, kSigned, kUnsigned, kPtr, kEnd }; Tag tag_; union { const char* str; const void* ptr; int64_t snum; uint64_t unum; } u_; }; extern PERFTOOLS_DLL_DECL void Log(LogMode mode, const char* filename, int line, LogItem a, LogItem b = LogItem(), LogItem c = LogItem(), LogItem d = LogItem()); // Tests can override this function to collect logging messages. extern PERFTOOLS_DLL_DECL void (*log_message_writer)(const char* msg, int length); } // end tcmalloc namespace // Like assert(), but executed even in NDEBUG mode #undef CHECK_CONDITION #define CHECK_CONDITION(cond) \ do { \ if (!(cond)) { \ ::tcmalloc::Log(::tcmalloc::kCrash, __FILE__, __LINE__, #cond); \ } \ } while (0) // Our own version of assert() so we can avoid hanging by trying to do // all kinds of goofy printing while holding the malloc lock. #ifndef NDEBUG #define ASSERT(cond) CHECK_CONDITION(cond) #else #define ASSERT(cond) ((void) 0) #endif // Print into buffer class TCMalloc_Printer { private: char* buf_; // Where should we write next int left_; // Space left in buffer (including space for \0) public: // REQUIRES: "length > 0" TCMalloc_Printer(char* buf, int length) : buf_(buf), left_(length) { buf[0] = '\0'; } void printf(const char* format, ...) #ifdef HAVE___ATTRIBUTE__ __attribute__ ((__format__ (__printf__, 2, 3))) #endif ; }; #endif // TCMALLOC_INTERNAL_LOGGING_H_ gperftools-2.4/src/system-alloc.h0000644000000000000000000000764212440704174014022 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Routine that uses sbrk/mmap to allocate memory from the system. // Useful for implementing malloc. #ifndef TCMALLOC_SYSTEM_ALLOC_H_ #define TCMALLOC_SYSTEM_ALLOC_H_ #include #include // for size_t class SysAllocator; // REQUIRES: "alignment" is a power of two or "0" to indicate default alignment // // Allocate and return "N" bytes of zeroed memory. // // If actual_bytes is NULL then the returned memory is exactly the // requested size. If actual bytes is non-NULL then the allocator // may optionally return more bytes than asked for (i.e. return an // entire "huge" page if a huge page allocator is in use). // // The returned pointer is a multiple of "alignment" if non-zero. The // returned pointer will always be aligned suitably for holding a // void*, double, or size_t. In addition, if this platform defines // CACHELINE_ALIGNED, the return pointer will always be cacheline // aligned. // // Returns NULL when out of memory. extern PERFTOOLS_DLL_DECL void* TCMalloc_SystemAlloc(size_t bytes, size_t *actual_bytes, size_t alignment = 0); // This call is a hint to the operating system that the pages // contained in the specified range of memory will not be used for a // while, and can be released for use by other processes or the OS. // Pages which are released in this way may be destroyed (zeroed) by // the OS. The benefit of this function is that it frees memory for // use by the system, the cost is that the pages are faulted back into // the address space next time they are touched, which can impact // performance. (Only pages fully covered by the memory region will // be released, partial pages will not.) // // Returns false if release failed or not supported. extern PERFTOOLS_DLL_DECL bool TCMalloc_SystemRelease(void* start, size_t length); // Called to ressurect memory which has been previously released // to the system via TCMalloc_SystemRelease. An attempt to // commit a page that is already committed does not cause this // function to fail. extern PERFTOOLS_DLL_DECL void TCMalloc_SystemCommit(void* start, size_t length); // The current system allocator. extern PERFTOOLS_DLL_DECL SysAllocator* sys_alloc; // Number of bytes taken from system. extern PERFTOOLS_DLL_DECL size_t TCMalloc_SystemTaken; #endif /* TCMALLOC_SYSTEM_ALLOC_H_ */ gperftools-2.4/src/packed-cache-inl.h0000644000000000000000000002323012440704174014445 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Geoff Pike // // This file provides a minimal cache that can hold a pair // with little if any wasted space. The types of the key and value // must be unsigned integral types or at least have unsigned semantics // for >>, casting, and similar operations. // // Synchronization is not provided. However, the cache is implemented // as an array of cache entries whose type is chosen at compile time. // If a[i] is atomic on your hardware for the chosen array type then // raciness will not necessarily lead to bugginess. The cache entries // must be large enough to hold a partial key and a value packed // together. The partial keys are bit strings of length // kKeybits - kHashbits, and the values are bit strings of length kValuebits. // // In an effort to use minimal space, every cache entry represents // some pair; the class provides no way to mark a cache // entry as empty or uninitialized. In practice, you may want to have // reserved keys or values to get around this limitation. For example, in // tcmalloc's PageID-to-sizeclass cache, a value of 0 is used as // "unknown sizeclass." // // Usage Considerations // -------------------- // // kHashbits controls the size of the cache. The best value for // kHashbits will of course depend on the application. Perhaps try // tuning the value of kHashbits by measuring different values on your // favorite benchmark. Also remember not to be a pig; other // programs that need resources may suffer if you are. // // The main uses for this class will be when performance is // critical and there's a convenient type to hold the cache's // entries. As described above, the number of bits required // for a cache entry is (kKeybits - kHashbits) + kValuebits. Suppose // kKeybits + kValuebits is 43. Then it probably makes sense to // chose kHashbits >= 11 so that cache entries fit in a uint32. // // On the other hand, suppose kKeybits = kValuebits = 64. Then // using this class may be less worthwhile. You'll probably // be using 128 bits for each entry anyway, so maybe just pick // a hash function, H, and use an array indexed by H(key): // void Put(K key, V value) { a_[H(key)] = pair(key, value); } // V GetOrDefault(K key, V default) { const pair &p = a_[H(key)]; ... } // etc. // // Further Details // --------------- // // For caches used only by one thread, the following is true: // 1. For a cache c, // (c.Put(key, value), c.GetOrDefault(key, 0)) == value // and // (c.Put(key, value), <...>, c.GetOrDefault(key, 0)) == value // if the elided code contains no c.Put calls. // // 2. Has(key) will return false if no pair with that key // has ever been Put. However, a newly initialized cache will have // some pairs already present. When you create a new // cache, you must specify an "initial value." The initialization // procedure is equivalent to Clear(initial_value), which is // equivalent to Put(k, initial_value) for all keys k from 0 to // 2^kHashbits - 1. // // 3. If key and key' differ then the only way Put(key, value) may // cause Has(key') to change is that Has(key') may change from true to // false. Furthermore, a Put() call that doesn't change Has(key') // doesn't change GetOrDefault(key', ...) either. // // Implementation details: // // This is a direct-mapped cache with 2^kHashbits entries; the hash // function simply takes the low bits of the key. We store whole keys // if a whole key plus a whole value fits in an entry. Otherwise, an // entry is the high bits of a key and a value, packed together. // E.g., a 20 bit key and a 7 bit value only require a uint16 for each // entry if kHashbits >= 11. // // Alternatives to this scheme will be added as needed. #ifndef TCMALLOC_PACKED_CACHE_INL_H_ #define TCMALLOC_PACKED_CACHE_INL_H_ #include "config.h" #include // for size_t #ifdef HAVE_STDINT_H #include // for uintptr_t #endif #include "base/basictypes.h" #include "internal_logging.h" // A safe way of doing "(1 << n) - 1" -- without worrying about overflow // Note this will all be resolved to a constant expression at compile-time #define N_ONES_(IntType, N) \ ( (N) == 0 ? 0 : ((static_cast(1) << ((N)-1))-1 + \ (static_cast(1) << ((N)-1))) ) // The types K and V provide upper bounds on the number of valid keys // and values, but we explicitly require the keys to be less than // 2^kKeybits and the values to be less than 2^kValuebits. The size of // the table is controlled by kHashbits, and the type of each entry in // the cache is T. See also the big comment at the top of the file. template class PackedCache { public: typedef uintptr_t K; typedef size_t V; #ifdef TCMALLOC_SMALL_BUT_SLOW // Decrease the size map cache if running in the small memory mode. static const int kHashbits = 12; #else static const int kHashbits = 16; #endif static const int kValuebits = 7; static const bool kUseWholeKeys = kKeybits + kValuebits <= 8 * sizeof(T); explicit PackedCache(V initial_value) { COMPILE_ASSERT(kKeybits <= sizeof(K) * 8, key_size); COMPILE_ASSERT(kValuebits <= sizeof(V) * 8, value_size); COMPILE_ASSERT(kHashbits <= kKeybits, hash_function); COMPILE_ASSERT(kKeybits - kHashbits + kValuebits <= kTbits, entry_size_must_be_big_enough); Clear(initial_value); } void Put(K key, V value) { ASSERT(key == (key & kKeyMask)); ASSERT(value == (value & kValueMask)); array_[Hash(key)] = KeyToUpper(key) | value; } bool Has(K key) const { ASSERT(key == (key & kKeyMask)); return KeyMatch(array_[Hash(key)], key); } V GetOrDefault(K key, V default_value) const { // As with other code in this class, we touch array_ as few times // as we can. Assuming entries are read atomically (e.g., their // type is uintptr_t on most hardware) then certain races are // harmless. ASSERT(key == (key & kKeyMask)); T entry = array_[Hash(key)]; return KeyMatch(entry, key) ? EntryToValue(entry) : default_value; } void Clear(V value) { ASSERT(value == (value & kValueMask)); for (int i = 0; i < 1 << kHashbits; i++) { ASSERT(kUseWholeKeys || KeyToUpper(i) == 0); array_[i] = kUseWholeKeys ? (value | KeyToUpper(i)) : value; } } private: // We are going to pack a value and the upper part of a key (or a // whole key) into an entry of type T. The UPPER type is for the // upper part of a key, after the key has been masked and shifted // for inclusion in an entry. typedef T UPPER; static V EntryToValue(T t) { return t & kValueMask; } // If we have space for a whole key, we just shift it left. // Otherwise kHashbits determines where in a K to find the upper // part of the key, and kValuebits determines where in the entry to // put it. static UPPER KeyToUpper(K k) { if (kUseWholeKeys) { return static_cast(k) << kValuebits; } else { const int shift = kHashbits - kValuebits; // Assume kHashbits >= kValuebits. It'd be easy to lift this assumption. return static_cast(k >> shift) & kUpperMask; } } static size_t Hash(K key) { return static_cast(key) & N_ONES_(size_t, kHashbits); } // Does the entry match the relevant part of the given key? static bool KeyMatch(T entry, K key) { return kUseWholeKeys ? (entry >> kValuebits == key) : ((KeyToUpper(key) ^ entry) & kUpperMask) == 0; } static const int kTbits = 8 * sizeof(T); static const int kUpperbits = kUseWholeKeys ? kKeybits : kKeybits - kHashbits; // For masking a K. static const K kKeyMask = N_ONES_(K, kKeybits); // For masking a T. static const T kUpperMask = N_ONES_(T, kUpperbits) << kValuebits; // For masking a V or a T. static const V kValueMask = N_ONES_(V, kValuebits); // array_ is the cache. Its elements are volatile because any // thread can write any array element at any time. volatile T array_[1 << kHashbits]; }; #undef N_ONES_ #endif // TCMALLOC_PACKED_CACHE_INL_H_ gperftools-2.4/src/tcmalloc_guard.h0000644000000000000000000000422312440704174014356 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // We expose the TCMallocGuard class -- which initializes the tcmalloc // allocator -- so classes that need to be sure tcmalloc is loaded // before they do stuff -- notably heap-profiler -- can. To use this // create a static TCMallocGuard instance at the top of a file where // you need tcmalloc to be initialized before global constructors run. #ifndef TCMALLOC_TCMALLOC_GUARD_H_ #define TCMALLOC_TCMALLOC_GUARD_H_ class TCMallocGuard { public: TCMallocGuard(); ~TCMallocGuard(); }; #endif // TCMALLOC_TCMALLOC_GUARD_H_ gperftools-2.4/src/pagemap.h0000644000000000000000000002353712440704174013021 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // A data structure used by the caching malloc. It maps from page# to // a pointer that contains info about that page. We use two // representations: one for 32-bit addresses, and another for 64 bit // addresses. Both representations provide the same interface. The // first representation is implemented as a flat array, the seconds as // a three-level radix tree that strips away approximately 1/3rd of // the bits every time. // // The BITS parameter should be the number of bits required to hold // a page number. E.g., with 32 bit pointers and 4K pages (i.e., // page offset fits in lower 12 bits), BITS == 20. #ifndef TCMALLOC_PAGEMAP_H_ #define TCMALLOC_PAGEMAP_H_ #include "config.h" #include // for NULL, size_t #include // for memset #if defined HAVE_STDINT_H #include #elif defined HAVE_INTTYPES_H #include #else #include #endif #include "internal_logging.h" // for ASSERT // Single-level array template class TCMalloc_PageMap1 { private: static const int LENGTH = 1 << BITS; void** array_; public: typedef uintptr_t Number; explicit TCMalloc_PageMap1(void* (*allocator)(size_t)) { array_ = reinterpret_cast((*allocator)(sizeof(void*) << BITS)); memset(array_, 0, sizeof(void*) << BITS); } // Ensure that the map contains initialized entries "x .. x+n-1". // Returns true if successful, false if we could not allocate memory. bool Ensure(Number x, size_t n) { // Nothing to do since flat array was allocated at start. All // that's left is to check for overflow (that is, we don't want to // ensure a number y where array_[y] would be an out-of-bounds // access). return n <= LENGTH - x; // an overflow-free way to do "x + n <= LENGTH" } void PreallocateMoreMemory() {} // Return the current value for KEY. Returns NULL if not yet set, // or if k is out of range. void* get(Number k) const { if ((k >> BITS) > 0) { return NULL; } return array_[k]; } // REQUIRES "k" is in range "[0,2^BITS-1]". // REQUIRES "k" has been ensured before. // // Sets the value 'v' for key 'k'. void set(Number k, void* v) { array_[k] = v; } // Return the first non-NULL pointer found in this map for // a page number >= k. Returns NULL if no such number is found. void* Next(Number k) const { while (k < (1 << BITS)) { if (array_[k] != NULL) return array_[k]; k++; } return NULL; } }; // Two-level radix tree template class TCMalloc_PageMap2 { private: // Put 32 entries in the root and (2^BITS)/32 entries in each leaf. static const int ROOT_BITS = 5; static const int ROOT_LENGTH = 1 << ROOT_BITS; static const int LEAF_BITS = BITS - ROOT_BITS; static const int LEAF_LENGTH = 1 << LEAF_BITS; // Leaf node struct Leaf { void* values[LEAF_LENGTH]; }; Leaf* root_[ROOT_LENGTH]; // Pointers to 32 child nodes void* (*allocator_)(size_t); // Memory allocator public: typedef uintptr_t Number; explicit TCMalloc_PageMap2(void* (*allocator)(size_t)) { allocator_ = allocator; memset(root_, 0, sizeof(root_)); } void* get(Number k) const { const Number i1 = k >> LEAF_BITS; const Number i2 = k & (LEAF_LENGTH-1); if ((k >> BITS) > 0 || root_[i1] == NULL) { return NULL; } return root_[i1]->values[i2]; } void set(Number k, void* v) { const Number i1 = k >> LEAF_BITS; const Number i2 = k & (LEAF_LENGTH-1); ASSERT(i1 < ROOT_LENGTH); root_[i1]->values[i2] = v; } bool Ensure(Number start, size_t n) { for (Number key = start; key <= start + n - 1; ) { const Number i1 = key >> LEAF_BITS; // Check for overflow if (i1 >= ROOT_LENGTH) return false; // Make 2nd level node if necessary if (root_[i1] == NULL) { Leaf* leaf = reinterpret_cast((*allocator_)(sizeof(Leaf))); if (leaf == NULL) return false; memset(leaf, 0, sizeof(*leaf)); root_[i1] = leaf; } // Advance key past whatever is covered by this leaf node key = ((key >> LEAF_BITS) + 1) << LEAF_BITS; } return true; } void PreallocateMoreMemory() { // Allocate enough to keep track of all possible pages Ensure(0, 1 << BITS); } void* Next(Number k) const { while (k < (1 << BITS)) { const Number i1 = k >> LEAF_BITS; Leaf* leaf = root_[i1]; if (leaf != NULL) { // Scan forward in leaf for (Number i2 = k & (LEAF_LENGTH - 1); i2 < LEAF_LENGTH; i2++) { if (leaf->values[i2] != NULL) { return leaf->values[i2]; } } } // Skip to next top-level entry k = (i1 + 1) << LEAF_BITS; } return NULL; } }; // Three-level radix tree template class TCMalloc_PageMap3 { private: // How many bits should we consume at each interior level static const int INTERIOR_BITS = (BITS + 2) / 3; // Round-up static const int INTERIOR_LENGTH = 1 << INTERIOR_BITS; // How many bits should we consume at leaf level static const int LEAF_BITS = BITS - 2*INTERIOR_BITS; static const int LEAF_LENGTH = 1 << LEAF_BITS; // Interior node struct Node { Node* ptrs[INTERIOR_LENGTH]; }; // Leaf node struct Leaf { void* values[LEAF_LENGTH]; }; Node* root_; // Root of radix tree void* (*allocator_)(size_t); // Memory allocator Node* NewNode() { Node* result = reinterpret_cast((*allocator_)(sizeof(Node))); if (result != NULL) { memset(result, 0, sizeof(*result)); } return result; } public: typedef uintptr_t Number; explicit TCMalloc_PageMap3(void* (*allocator)(size_t)) { allocator_ = allocator; root_ = NewNode(); } void* get(Number k) const { const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS); const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1); const Number i3 = k & (LEAF_LENGTH-1); if ((k >> BITS) > 0 || root_->ptrs[i1] == NULL || root_->ptrs[i1]->ptrs[i2] == NULL) { return NULL; } return reinterpret_cast(root_->ptrs[i1]->ptrs[i2])->values[i3]; } void set(Number k, void* v) { ASSERT(k >> BITS == 0); const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS); const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1); const Number i3 = k & (LEAF_LENGTH-1); reinterpret_cast(root_->ptrs[i1]->ptrs[i2])->values[i3] = v; } bool Ensure(Number start, size_t n) { for (Number key = start; key <= start + n - 1; ) { const Number i1 = key >> (LEAF_BITS + INTERIOR_BITS); const Number i2 = (key >> LEAF_BITS) & (INTERIOR_LENGTH-1); // Check for overflow if (i1 >= INTERIOR_LENGTH || i2 >= INTERIOR_LENGTH) return false; // Make 2nd level node if necessary if (root_->ptrs[i1] == NULL) { Node* n = NewNode(); if (n == NULL) return false; root_->ptrs[i1] = n; } // Make leaf node if necessary if (root_->ptrs[i1]->ptrs[i2] == NULL) { Leaf* leaf = reinterpret_cast((*allocator_)(sizeof(Leaf))); if (leaf == NULL) return false; memset(leaf, 0, sizeof(*leaf)); root_->ptrs[i1]->ptrs[i2] = reinterpret_cast(leaf); } // Advance key past whatever is covered by this leaf node key = ((key >> LEAF_BITS) + 1) << LEAF_BITS; } return true; } void PreallocateMoreMemory() { } void* Next(Number k) const { while (k < (Number(1) << BITS)) { const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS); const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1); if (root_->ptrs[i1] == NULL) { // Advance to next top-level entry k = (i1 + 1) << (LEAF_BITS + INTERIOR_BITS); } else { Leaf* leaf = reinterpret_cast(root_->ptrs[i1]->ptrs[i2]); if (leaf != NULL) { for (Number i3 = (k & (LEAF_LENGTH-1)); i3 < LEAF_LENGTH; i3++) { if (leaf->values[i3] != NULL) { return leaf->values[i3]; } } } // Advance to next interior entry k = ((k >> LEAF_BITS) + 1) << LEAF_BITS; } } return NULL; } }; #endif // TCMALLOC_PAGEMAP_H_ gperftools-2.4/src/sampler.h0000755000000000000000000001647712440704174013062 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // All Rights Reserved. // // Author: Daniel Ford #ifndef TCMALLOC_SAMPLER_H_ #define TCMALLOC_SAMPLER_H_ #include "config.h" #include // for size_t #ifdef HAVE_STDINT_H #include // for uint64_t, uint32_t, int32_t #endif #include // for memcpy #include "base/basictypes.h" // for ASSERT #include "internal_logging.h" // for ASSERT namespace tcmalloc { //------------------------------------------------------------------- // Sampler to decide when to create a sample trace for an allocation // Not thread safe: Each thread should have it's own sampler object. // Caller must use external synchronization if used // from multiple threads. // // With 512K average sample step (the default): // the probability of sampling a 4K allocation is about 0.00778 // the probability of sampling a 1MB allocation is about 0.865 // the probability of sampling a 1GB allocation is about 1.00000 // In general, the probablity of sampling is an allocation of size X // given a flag value of Y (default 1M) is: // 1 - e^(-X/Y) // // With 128K average sample step: // the probability of sampling a 1MB allocation is about 0.99966 // the probability of sampling a 1GB allocation is about 1.0 // (about 1 - 2**(-26)) // With 1M average sample step: // the probability of sampling a 4K allocation is about 0.00390 // the probability of sampling a 1MB allocation is about 0.632 // the probability of sampling a 1GB allocation is about 1.0 // // The sampler works by representing memory as a long stream from // which allocations are taken. Some of the bytes in this stream are // marked and if an allocation includes a marked byte then it is // sampled. Bytes are marked according to a Poisson point process // with each byte being marked independently with probability // p = 1/tcmalloc_sample_parameter. This makes the probability // of sampling an allocation of X bytes equal to the CDF of // a geometric with mean tcmalloc_sample_parameter. (ie. the // probability that at least one byte in the range is marked). This // is accurately given by the CDF of the corresponding exponential // distribution : 1 - e^(X/tcmalloc_sample_parameter_) // Independence of the byte marking ensures independence of // the sampling of each allocation. // // This scheme is implemented by noting that, starting from any // fixed place, the number of bytes until the next marked byte // is geometrically distributed. This number is recorded as // bytes_until_sample_. Every allocation subtracts from this // number until it is less than 0. When this happens the current // allocation is sampled. // // When an allocation occurs, bytes_until_sample_ is reset to // a new independtly sampled geometric number of bytes. The // memoryless property of the point process means that this may // be taken as the number of bytes after the end of the current // allocation until the next marked byte. This ensures that // very large allocations which would intersect many marked bytes // only result in a single call to PickNextSamplingPoint. //------------------------------------------------------------------- class PERFTOOLS_DLL_DECL Sampler { public: // Initialize this sampler. // Passing a seed of 0 gives a non-deterministic // seed value given by casting the object ("this") void Init(uint32_t seed); void Cleanup(); // Record allocation of "k" bytes. Return true iff allocation // should be sampled bool SampleAllocation(size_t k); // Generate a geometric with mean 512K (or FLAG_tcmalloc_sample_parameter) size_t PickNextSamplingPoint(); // Initialize the statics for the Sampler class static void InitStatics(); // Returns the current sample period int GetSamplePeriod(); // The following are public for the purposes of testing static uint64_t NextRandom(uint64_t rnd_); // Returns the next prng value static double FastLog2(const double & d); // Computes Log2(x) quickly static void PopulateFastLog2Table(); // Populate the lookup table private: size_t bytes_until_sample_; // Bytes until we sample next uint64_t rnd_; // Cheap random number generator // Statics for the fast log // Note that this code may not depend on anything in //util // hence the duplication of functionality here static const int kFastlogNumBits = 10; static const int kFastlogMask = (1 << kFastlogNumBits) - 1; static double log_table_[1<(0)) << prng_mod_power); return (prng_mult * rnd + prng_add) & prng_mod_mask; } // Adapted from //util/math/fastmath.[h|cc] by Noam Shazeer // This mimics the VeryFastLog2 code in those files inline double Sampler::FastLog2(const double & d) { ASSERT(d>0); COMPILE_ASSERT(sizeof(d) == sizeof(uint64_t), DoubleMustBe64Bits); uint64_t x; memcpy(&x, &d, sizeof(x)); // we depend on the compiler inlining this const uint32_t x_high = x >> 32; const uint32_t y = x_high >> (20 - kFastlogNumBits) & kFastlogMask; const int32_t exponent = ((x_high >> 20) & 0x7FF) - 1023; return exponent + log_table_[y]; } } // namespace tcmalloc #endif // TCMALLOC_SAMPLER_H_ gperftools-2.4/src/central_freelist.h0000644000000000000000000002021112441201462014707 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #ifndef TCMALLOC_CENTRAL_FREELIST_H_ #define TCMALLOC_CENTRAL_FREELIST_H_ #include "config.h" #include // for size_t #ifdef HAVE_STDINT_H #include // for int32_t #endif #include "base/spinlock.h" #include "base/thread_annotations.h" #include "common.h" #include "span.h" namespace tcmalloc { // Data kept per size-class in central cache. class CentralFreeList { public: // A CentralFreeList may be used before its constructor runs. // So we prevent lock_'s constructor from doing anything to the // lock_ state. CentralFreeList() : lock_(base::LINKER_INITIALIZED) { } void Init(size_t cl); // These methods all do internal locking. // Insert the specified range into the central freelist. N is the number of // elements in the range. RemoveRange() is the opposite operation. void InsertRange(void *start, void *end, int N); // Returns the actual number of fetched elements and sets *start and *end. int RemoveRange(void **start, void **end, int N); // Returns the number of free objects in cache. int length() { SpinLockHolder h(&lock_); return counter_; } // Returns the number of free objects in the transfer cache. int tc_length(); // Returns the memory overhead (internal fragmentation) attributable // to the freelist. This is memory lost when the size of elements // in a freelist doesn't exactly divide the page-size (an 8192-byte // page full of 5-byte objects would have 2 bytes memory overhead). size_t OverheadBytes(); // Lock/Unlock the internal SpinLock. Used on the pthread_atfork call // to set the lock in a consistent state before the fork. void Lock() { lock_.Lock(); } void Unlock() { lock_.Unlock(); } private: // TransferCache is used to cache transfers of // sizemap.num_objects_to_move(size_class) back and forth between // thread caches and the central cache for a given size class. struct TCEntry { void *head; // Head of chain of objects. void *tail; // Tail of chain of objects. }; // A central cache freelist can have anywhere from 0 to kMaxNumTransferEntries // slots to put link list chains into. #ifdef TCMALLOC_SMALL_BUT_SLOW // For the small memory model, the transfer cache is not used. static const int kMaxNumTransferEntries = 0; #else // Starting point for the the maximum number of entries in the transfer cache. // This actual maximum for a given size class may be lower than this // maximum value. static const int kMaxNumTransferEntries = 64; #endif // REQUIRES: lock_ is held // Remove object from cache and return. // Return NULL if no free entries in cache. int FetchFromOneSpans(int N, void **start, void **end) EXCLUSIVE_LOCKS_REQUIRED(lock_); // REQUIRES: lock_ is held // Remove object from cache and return. Fetches // from pageheap if cache is empty. Only returns // NULL on allocation failure. int FetchFromOneSpansSafe(int N, void **start, void **end) EXCLUSIVE_LOCKS_REQUIRED(lock_); // REQUIRES: lock_ is held // Release a linked list of objects to spans. // May temporarily release lock_. void ReleaseListToSpans(void *start) EXCLUSIVE_LOCKS_REQUIRED(lock_); // REQUIRES: lock_ is held // Release an object to spans. // May temporarily release lock_. void ReleaseToSpans(void* object) EXCLUSIVE_LOCKS_REQUIRED(lock_); // REQUIRES: lock_ is held // Populate cache by fetching from the page heap. // May temporarily release lock_. void Populate() EXCLUSIVE_LOCKS_REQUIRED(lock_); // REQUIRES: lock is held. // Tries to make room for a TCEntry. If the cache is full it will try to // expand it at the cost of some other cache size. Return false if there is // no space. bool MakeCacheSpace() EXCLUSIVE_LOCKS_REQUIRED(lock_); // REQUIRES: lock_ for locked_size_class is held. // Picks a "random" size class to steal TCEntry slot from. In reality it // just iterates over the sizeclasses but does so without taking a lock. // Returns true on success. // May temporarily lock a "random" size class. static bool EvictRandomSizeClass(int locked_size_class, bool force); // REQUIRES: lock_ is *not* held. // Tries to shrink the Cache. If force is true it will relase objects to // spans if it allows it to shrink the cache. Return false if it failed to // shrink the cache. Decrements cache_size_ on succeess. // May temporarily take lock_. If it takes lock_, the locked_size_class // lock is released to keep the thread from holding two size class locks // concurrently which could lead to a deadlock. bool ShrinkCache(int locked_size_class, bool force) LOCKS_EXCLUDED(lock_); // This lock protects all the data members. cached_entries and cache_size_ // may be looked at without holding the lock. SpinLock lock_; // We keep linked lists of empty and non-empty spans. size_t size_class_; // My size class Span empty_; // Dummy header for list of empty spans Span nonempty_; // Dummy header for list of non-empty spans size_t num_spans_; // Number of spans in empty_ plus nonempty_ size_t counter_; // Number of free objects in cache entry // Here we reserve space for TCEntry cache slots. Space is preallocated // for the largest possible number of entries than any one size class may // accumulate. Not all size classes are allowed to accumulate // kMaxNumTransferEntries, so there is some wasted space for those size // classes. TCEntry tc_slots_[kMaxNumTransferEntries]; // Number of currently used cached entries in tc_slots_. This variable is // updated under a lock but can be read without one. int32_t used_slots_; // The current number of slots for this size class. This is an // adaptive value that is increased if there is lots of traffic // on a given size class. int32_t cache_size_; // Maximum size of the cache for a given size class. int32_t max_cache_size_; }; // Pads each CentralCache object to multiple of 64 bytes. Since some // compilers (such as MSVC) don't like it when the padding is 0, I use // template specialization to remove the padding entirely when // sizeof(CentralFreeList) is a multiple of 64. template class CentralFreeListPaddedTo : public CentralFreeList { private: char pad_[64 - kFreeListSizeMod64]; }; template<> class CentralFreeListPaddedTo<0> : public CentralFreeList { }; class CentralFreeListPadded : public CentralFreeListPaddedTo< sizeof(CentralFreeList) % 64> { }; } // namespace tcmalloc #endif // TCMALLOC_CENTRAL_FREELIST_H_ gperftools-2.4/src/linked_list.h0000644000000000000000000000614712440704174013706 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // Some very basic linked list functions for dealing with using void * as // storage. #ifndef TCMALLOC_LINKED_LIST_H_ #define TCMALLOC_LINKED_LIST_H_ #include namespace tcmalloc { inline void *SLL_Next(void *t) { return *(reinterpret_cast(t)); } inline void SLL_SetNext(void *t, void *n) { *(reinterpret_cast(t)) = n; } inline void SLL_Push(void **list, void *element) { SLL_SetNext(element, *list); *list = element; } inline void *SLL_Pop(void **list) { void *result = *list; *list = SLL_Next(*list); return result; } // Remove N elements from a linked list to which head points. head will be // modified to point to the new head. start and end will point to the first // and last nodes of the range. Note that end will point to NULL after this // function is called. inline void SLL_PopRange(void **head, int N, void **start, void **end) { if (N == 0) { *start = NULL; *end = NULL; return; } void *tmp = *head; for (int i = 1; i < N; ++i) { tmp = SLL_Next(tmp); } *start = *head; *end = tmp; *head = SLL_Next(tmp); // Unlink range from list. SLL_SetNext(tmp, NULL); } inline void SLL_PushRange(void **head, void *start, void *end) { if (!start) return; SLL_SetNext(end, *head); *head = start; } inline size_t SLL_Size(void *head) { int count = 0; while (head) { count++; head = SLL_Next(head); } return count; } } // namespace tcmalloc #endif // TCMALLOC_LINKED_LIST_H_ gperftools-2.4/src/libc_override.h0000644000000000000000000000741212440704174014211 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // This .h file imports the code that causes tcmalloc to override libc // versions of malloc/free/new/delete/etc. That is, it provides the // logic that makes it so calls to malloc(10) go through tcmalloc, // rather than the default (libc) malloc. // // This file also provides a method: ReplaceSystemAlloc(), that every // libc_override_*.h file it #includes is required to provide. This // is called when first setting up tcmalloc -- that is, when a global // constructor in tcmalloc.cc is executed -- to do any initialization // work that may be required for this OS. (Note we cannot entirely // control when tcmalloc is initialized, and the system may do some // mallocs and frees before this routine is called.) It may be a // noop. // // Every libc has its own way of doing this, and sometimes the compiler // matters too, so we have a different file for each libc, and often // for different compilers and OS's. #ifndef TCMALLOC_LIBC_OVERRIDE_INL_H_ #define TCMALLOC_LIBC_OVERRIDE_INL_H_ #include #ifdef HAVE_FEATURES_H #include // for __GLIBC__ #endif #include static void ReplaceSystemAlloc(); // defined in the .h files below // For windows, there are two ways to get tcmalloc. If we're // patching, then src/windows/patch_function.cc will do the necessary // overriding here. Otherwise, we doing the 'redefine' trick, where // we remove malloc/new/etc from mscvcrt.dll, and just need to define // them now. #if defined(_WIN32) && defined(WIN32_DO_PATCHING) void PatchWindowsFunctions(); // in src/windows/patch_function.cc static void ReplaceSystemAlloc() { PatchWindowsFunctions(); } #elif defined(_WIN32) && !defined(WIN32_DO_PATCHING) #include "libc_override_redefine.h" #elif defined(__APPLE__) #include "libc_override_osx.h" #elif defined(__GLIBC__) #include "libc_override_glibc.h" // Not all gcc systems necessarily support weak symbols, but all the // ones I know of do, so for now just assume they all do. #elif defined(__GNUC__) #include "libc_override_gcc_and_weak.h" #else #error Need to add support for your libc/OS here #endif #endif // TCMALLOC_LIBC_OVERRIDE_INL_H_ gperftools-2.4/src/libc_override_gcc_and_weak.h0000644000000000000000000001065212440704174016656 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Used to override malloc routines on systems that define the // memory allocation routines to be weak symbols in their libc // (almost all unix-based systems are like this), on gcc, which // suppports the 'alias' attribute. #ifndef TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_ #define TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_ #ifdef HAVE_SYS_CDEFS_H #include // for __THROW #endif #include #ifndef __THROW // I guess we're not on a glibc-like system # define __THROW // __THROW is just an optimization, so ok to make it "" #endif #ifndef __GNUC__ # error libc_override_gcc_and_weak.h is for gcc distributions only. #endif #define ALIAS(tc_fn) __attribute__ ((alias (#tc_fn))) void* operator new(size_t size) throw (std::bad_alloc) ALIAS(tc_new); void operator delete(void* p) __THROW ALIAS(tc_delete); void* operator new[](size_t size) throw (std::bad_alloc) ALIAS(tc_newarray); void operator delete[](void* p) __THROW ALIAS(tc_deletearray); void* operator new(size_t size, const std::nothrow_t& nt) __THROW ALIAS(tc_new_nothrow); void* operator new[](size_t size, const std::nothrow_t& nt) __THROW ALIAS(tc_newarray_nothrow); void operator delete(void* p, const std::nothrow_t& nt) __THROW ALIAS(tc_delete_nothrow); void operator delete[](void* p, const std::nothrow_t& nt) __THROW ALIAS(tc_deletearray_nothrow); extern "C" { void* malloc(size_t size) __THROW ALIAS(tc_malloc); void free(void* ptr) __THROW ALIAS(tc_free); void* realloc(void* ptr, size_t size) __THROW ALIAS(tc_realloc); void* calloc(size_t n, size_t size) __THROW ALIAS(tc_calloc); void cfree(void* ptr) __THROW ALIAS(tc_cfree); void* memalign(size_t align, size_t s) __THROW ALIAS(tc_memalign); void* valloc(size_t size) __THROW ALIAS(tc_valloc); void* pvalloc(size_t size) __THROW ALIAS(tc_pvalloc); int posix_memalign(void** r, size_t a, size_t s) __THROW ALIAS(tc_posix_memalign); #ifndef __UCLIBC__ void malloc_stats(void) __THROW ALIAS(tc_malloc_stats); #endif int mallopt(int cmd, int value) __THROW ALIAS(tc_mallopt); #ifdef HAVE_STRUCT_MALLINFO struct mallinfo mallinfo(void) __THROW ALIAS(tc_mallinfo); #endif size_t malloc_size(void* p) __THROW ALIAS(tc_malloc_size); #if defined(__ANDROID__) size_t malloc_usable_size(const void* p) __THROW ALIAS(tc_malloc_size); #else size_t malloc_usable_size(void* p) __THROW ALIAS(tc_malloc_size); #endif } // extern "C" #undef ALIAS // No need to do anything at tcmalloc-registration time: we do it all // via overriding weak symbols (at link time). static void ReplaceSystemAlloc() { } #endif // TCMALLOC_LIBC_OVERRIDE_GCC_AND_WEAK_INL_H_ gperftools-2.4/src/libc_override_glibc.h0000644000000000000000000001440712440704174015353 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Used to override malloc routines on systems that are using glibc. #ifndef TCMALLOC_LIBC_OVERRIDE_GLIBC_INL_H_ #define TCMALLOC_LIBC_OVERRIDE_GLIBC_INL_H_ #include #include // for __GLIBC__ #ifdef HAVE_SYS_CDEFS_H #include // for __THROW #endif #include #ifndef __GLIBC__ # error libc_override_glibc.h is for glibc distributions only. #endif // In glibc, the memory-allocation methods are weak symbols, so we can // just override them with our own. If we're using gcc, we can use // __attribute__((alias)) to do the overriding easily (exception: // Mach-O, which doesn't support aliases). Otherwise we have to use a // function call. #if !defined(__GNUC__) || defined(__MACH__) // This also defines ReplaceSystemAlloc(). # include "libc_override_redefine.h" // defines functions malloc()/etc #else // #if !defined(__GNUC__) || defined(__MACH__) // If we get here, we're a gcc system, so do all the overriding we do // with gcc. This does the overriding of all the 'normal' memory // allocation. This also defines ReplaceSystemAlloc(). # include "libc_override_gcc_and_weak.h" // We also have to do some glibc-specific overriding. Some library // routines on RedHat 9 allocate memory using malloc() and free it // using __libc_free() (or vice-versa). Since we provide our own // implementations of malloc/free, we need to make sure that the // __libc_XXX variants (defined as part of glibc) also point to the // same implementations. Since it only matters for redhat, we // do it inside the gcc #ifdef, since redhat uses gcc. // TODO(csilvers): only do this if we detect we're an old enough glibc? #define ALIAS(tc_fn) __attribute__ ((alias (#tc_fn))) extern "C" { void* __libc_malloc(size_t size) ALIAS(tc_malloc); void __libc_free(void* ptr) ALIAS(tc_free); void* __libc_realloc(void* ptr, size_t size) ALIAS(tc_realloc); void* __libc_calloc(size_t n, size_t size) ALIAS(tc_calloc); void __libc_cfree(void* ptr) ALIAS(tc_cfree); void* __libc_memalign(size_t align, size_t s) ALIAS(tc_memalign); void* __libc_valloc(size_t size) ALIAS(tc_valloc); void* __libc_pvalloc(size_t size) ALIAS(tc_pvalloc); int __posix_memalign(void** r, size_t a, size_t s) ALIAS(tc_posix_memalign); } // extern "C" #undef ALIAS #endif // #if defined(__GNUC__) && !defined(__MACH__) // We also have to hook libc malloc. While our work with weak symbols // should make sure libc malloc is never called in most situations, it // can be worked around by shared libraries with the DEEPBIND // environment variable set. The below hooks libc to call our malloc // routines even in that situation. In other situations, this hook // should never be called. extern "C" { static void* glibc_override_malloc(size_t size, const void *caller) { return tc_malloc(size); } static void* glibc_override_realloc(void *ptr, size_t size, const void *caller) { return tc_realloc(ptr, size); } static void glibc_override_free(void *ptr, const void *caller) { tc_free(ptr); } static void* glibc_override_memalign(size_t align, size_t size, const void *caller) { return tc_memalign(align, size); } // We should be using __malloc_initialize_hook here, like the #if 0 // code below. (See http://swoolley.org/man.cgi/3/malloc_hook.) // However, this causes weird linker errors with programs that link // with -static, so instead we just assign the vars directly at // static-constructor time. That should serve the same effect of // making sure the hooks are set before the first malloc call the // program makes. #if 0 #include // for __malloc_hook, etc. void glibc_override_malloc_init_hook(void) { __malloc_hook = glibc_override_malloc; __realloc_hook = glibc_override_realloc; __free_hook = glibc_override_free; __memalign_hook = glibc_override_memalign; } void (* MALLOC_HOOK_MAYBE_VOLATILE __malloc_initialize_hook)(void) = &glibc_override_malloc_init_hook; #endif void* (* MALLOC_HOOK_MAYBE_VOLATILE __malloc_hook)(size_t, const void*) = &glibc_override_malloc; void* (* MALLOC_HOOK_MAYBE_VOLATILE __realloc_hook)(void*, size_t, const void*) = &glibc_override_realloc; void (* MALLOC_HOOK_MAYBE_VOLATILE __free_hook)(void*, const void*) = &glibc_override_free; void* (* MALLOC_HOOK_MAYBE_VOLATILE __memalign_hook)(size_t,size_t, const void*) = &glibc_override_memalign; } // extern "C" // No need to write ReplaceSystemAlloc(); one of the #includes above // did it for us. #endif // TCMALLOC_LIBC_OVERRIDE_GLIBC_INL_H_ gperftools-2.4/src/libc_override_osx.h0000644000000000000000000002543012440704174015102 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Used to override malloc routines on OS X systems. We use the // malloc-zone functionality built into OS X to register our malloc // routine. // // 1) We used to use the normal 'override weak libc malloc/etc' // technique for OS X. This is not optimal because mach does not // support the 'alias' attribute, so we had to have forwarding // functions. It also does not work very well with OS X shared // libraries (dylibs) -- in general, the shared libs don't use // tcmalloc unless run with the DYLD_FORCE_FLAT_NAMESPACE envvar. // // 2) Another approach would be to use an interposition array: // static const interpose_t interposers[] __attribute__((section("__DATA, __interpose"))) = { // { (void *)tc_malloc, (void *)malloc }, // { (void *)tc_free, (void *)free }, // }; // This requires the user to set the DYLD_INSERT_LIBRARIES envvar, so // is not much better. // // 3) Registering a new malloc zone avoids all these issues: // http://www.opensource.apple.com/source/Libc/Libc-583/include/malloc/malloc.h // http://www.opensource.apple.com/source/Libc/Libc-583/gen/malloc.c // If we make tcmalloc the default malloc zone (undocumented but // possible) then all new allocs use it, even those in shared // libraries. Allocs done before tcmalloc was installed, or in libs // that aren't using tcmalloc for some reason, will correctly go // through the malloc-zone interface when free-ing, and will pick up // the libc free rather than tcmalloc free. So it should "never" // cause a crash (famous last words). // // 4) The routines one must define for one's own malloc have changed // between OS X versions. This requires some hoops on our part, but // is only really annoying when it comes to posix_memalign. The right // behavior there depends on what OS version tcmalloc was compiled on, // but also what OS version the program is running on. For now, we // punt and don't implement our own posix_memalign. Apps that really // care can use tc_posix_memalign directly. #ifndef TCMALLOC_LIBC_OVERRIDE_OSX_INL_H_ #define TCMALLOC_LIBC_OVERRIDE_OSX_INL_H_ #include #ifdef HAVE_FEATURES_H #include #endif #include #if !defined(__APPLE__) # error libc_override_glibc-osx.h is for OS X distributions only. #endif #include #include // from AvailabilityMacros.h #if defined(MAC_OS_X_VERSION_10_6) && \ MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6 extern "C" { // This function is only available on 10.6 (and later) but the // LibSystem headers do not use AvailabilityMacros.h to handle weak // importing automatically. This prototype is a copy of the one in // with the WEAK_IMPORT_ATTRBIUTE added. extern malloc_zone_t *malloc_default_purgeable_zone(void) WEAK_IMPORT_ATTRIBUTE; } #endif // We need to provide wrappers around all the libc functions. namespace { size_t mz_size(malloc_zone_t* zone, const void* ptr) { if (MallocExtension::instance()->GetOwnership(ptr) != MallocExtension::kOwned) return 0; // malloc_zone semantics: return 0 if we don't own the memory // TODO(csilvers): change this method to take a const void*, one day. return MallocExtension::instance()->GetAllocatedSize(const_cast(ptr)); } void* mz_malloc(malloc_zone_t* zone, size_t size) { return tc_malloc(size); } void* mz_calloc(malloc_zone_t* zone, size_t num_items, size_t size) { return tc_calloc(num_items, size); } void* mz_valloc(malloc_zone_t* zone, size_t size) { return tc_valloc(size); } void mz_free(malloc_zone_t* zone, void* ptr) { return tc_free(ptr); } void* mz_realloc(malloc_zone_t* zone, void* ptr, size_t size) { return tc_realloc(ptr, size); } void* mz_memalign(malloc_zone_t* zone, size_t align, size_t size) { return tc_memalign(align, size); } void mz_destroy(malloc_zone_t* zone) { // A no-op -- we will not be destroyed! } // malloc_introspection callbacks. I'm not clear on what all of these do. kern_return_t mi_enumerator(task_t task, void *, unsigned type_mask, vm_address_t zone_address, memory_reader_t reader, vm_range_recorder_t recorder) { // Should enumerate all the pointers we have. Seems like a lot of work. return KERN_FAILURE; } size_t mi_good_size(malloc_zone_t *zone, size_t size) { // I think it's always safe to return size, but we maybe could do better. return size; } boolean_t mi_check(malloc_zone_t *zone) { return MallocExtension::instance()->VerifyAllMemory(); } void mi_print(malloc_zone_t *zone, boolean_t verbose) { int bufsize = 8192; if (verbose) bufsize = 102400; // I picked this size arbitrarily char* buffer = new char[bufsize]; MallocExtension::instance()->GetStats(buffer, bufsize); fprintf(stdout, "%s", buffer); delete[] buffer; } void mi_log(malloc_zone_t *zone, void *address) { // I don't think we support anything like this } void mi_force_lock(malloc_zone_t *zone) { // Hopefully unneeded by us! } void mi_force_unlock(malloc_zone_t *zone) { // Hopefully unneeded by us! } void mi_statistics(malloc_zone_t *zone, malloc_statistics_t *stats) { // TODO(csilvers): figure out how to fill these out stats->blocks_in_use = 0; stats->size_in_use = 0; stats->max_size_in_use = 0; stats->size_allocated = 0; } boolean_t mi_zone_locked(malloc_zone_t *zone) { return false; // Hopefully unneeded by us! } } // unnamed namespace // OS X doesn't have pvalloc, cfree, malloc_statc, etc, so we can just // define our own. :-) OS X supplies posix_memalign in some versions // but not others, either strongly or weakly linked, in a way that's // difficult enough to code to correctly, that I just don't try to // support either memalign() or posix_memalign(). If you need them // and are willing to code to tcmalloc, you can use tc_posix_memalign(). extern "C" { void cfree(void* p) { tc_cfree(p); } void* pvalloc(size_t s) { return tc_pvalloc(s); } void malloc_stats(void) { tc_malloc_stats(); } int mallopt(int cmd, int v) { return tc_mallopt(cmd, v); } // No struct mallinfo on OS X, so don't define mallinfo(). // An alias for malloc_size(), which OS X defines. size_t malloc_usable_size(void* p) { return tc_malloc_size(p); } } // extern "C" static void ReplaceSystemAlloc() { static malloc_introspection_t tcmalloc_introspection; memset(&tcmalloc_introspection, 0, sizeof(tcmalloc_introspection)); tcmalloc_introspection.enumerator = &mi_enumerator; tcmalloc_introspection.good_size = &mi_good_size; tcmalloc_introspection.check = &mi_check; tcmalloc_introspection.print = &mi_print; tcmalloc_introspection.log = &mi_log; tcmalloc_introspection.force_lock = &mi_force_lock; tcmalloc_introspection.force_unlock = &mi_force_unlock; static malloc_zone_t tcmalloc_zone; memset(&tcmalloc_zone, 0, sizeof(malloc_zone_t)); // Start with a version 4 zone which is used for OS X 10.4 and 10.5. tcmalloc_zone.version = 4; tcmalloc_zone.zone_name = "tcmalloc"; tcmalloc_zone.size = &mz_size; tcmalloc_zone.malloc = &mz_malloc; tcmalloc_zone.calloc = &mz_calloc; tcmalloc_zone.valloc = &mz_valloc; tcmalloc_zone.free = &mz_free; tcmalloc_zone.realloc = &mz_realloc; tcmalloc_zone.destroy = &mz_destroy; tcmalloc_zone.batch_malloc = NULL; tcmalloc_zone.batch_free = NULL; tcmalloc_zone.introspect = &tcmalloc_introspection; // from AvailabilityMacros.h #if defined(MAC_OS_X_VERSION_10_6) && \ MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6 // Switch to version 6 on OSX 10.6 to support memalign. tcmalloc_zone.version = 6; tcmalloc_zone.free_definite_size = NULL; tcmalloc_zone.memalign = &mz_memalign; tcmalloc_introspection.zone_locked = &mi_zone_locked; // Request the default purgable zone to force its creation. The // current default zone is registered with the purgable zone for // doing tiny and small allocs. Sadly, it assumes that the default // zone is the szone implementation from OS X and will crash if it // isn't. By creating the zone now, this will be true and changing // the default zone won't cause a problem. This only needs to // happen when actually running on OS X 10.6 and higher (note the // ifdef above only checks if we were *compiled* with 10.6 or // higher; at runtime we have to check if this symbol is defined.) if (malloc_default_purgeable_zone) { malloc_default_purgeable_zone(); } #endif // Register the tcmalloc zone. At this point, it will not be the // default zone. malloc_zone_register(&tcmalloc_zone); // Unregister and reregister the default zone. Unregistering swaps // the specified zone with the last one registered which for the // default zone makes the more recently registered zone the default // zone. The default zone is then re-registered to ensure that // allocations made from it earlier will be handled correctly. // Things are not guaranteed to work that way, but it's how they work now. malloc_zone_t *default_zone = malloc_default_zone(); malloc_zone_unregister(default_zone); malloc_zone_register(default_zone); } #endif // TCMALLOC_LIBC_OVERRIDE_OSX_INL_H_ gperftools-2.4/src/libc_override_redefine.h0000644000000000000000000001065612440704174016056 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Used on systems that don't have their own definition of // malloc/new/etc. (Typically this will be a windows msvcrt.dll that // has been edited to remove the definitions.) We can just define our // own as normal functions. // // This should also work on systems were all the malloc routines are // defined as weak symbols, and there's no support for aliasing. #ifndef TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_ #define TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_ #ifdef HAVE_SYS_CDEFS_H #include // for __THROW #endif #ifndef __THROW // I guess we're not on a glibc-like system # define __THROW // __THROW is just an optimization, so ok to make it "" #endif void* operator new(size_t size) { return tc_new(size); } void operator delete(void* p) __THROW { tc_delete(p); } void* operator new[](size_t size) { return tc_newarray(size); } void operator delete[](void* p) __THROW { tc_deletearray(p); } void* operator new(size_t size, const std::nothrow_t& nt) __THROW { return tc_new_nothrow(size, nt); } void* operator new[](size_t size, const std::nothrow_t& nt) __THROW { return tc_newarray_nothrow(size, nt); } void operator delete(void* ptr, const std::nothrow_t& nt) __THROW { return tc_delete_nothrow(ptr, nt); } void operator delete[](void* ptr, const std::nothrow_t& nt) __THROW { return tc_deletearray_nothrow(ptr, nt); } extern "C" { void* malloc(size_t s) __THROW { return tc_malloc(s); } void free(void* p) __THROW { tc_free(p); } void* realloc(void* p, size_t s) __THROW { return tc_realloc(p, s); } void* calloc(size_t n, size_t s) __THROW { return tc_calloc(n, s); } void cfree(void* p) __THROW { tc_cfree(p); } void* memalign(size_t a, size_t s) __THROW { return tc_memalign(a, s); } void* valloc(size_t s) __THROW { return tc_valloc(s); } void* pvalloc(size_t s) __THROW { return tc_pvalloc(s); } int posix_memalign(void** r, size_t a, size_t s) __THROW { return tc_posix_memalign(r, a, s); } void malloc_stats(void) __THROW { tc_malloc_stats(); } int mallopt(int cmd, int v) __THROW { return tc_mallopt(cmd, v); } #ifdef HAVE_STRUCT_MALLINFO struct mallinfo mallinfo(void) __THROW { return tc_mallinfo(); } #endif size_t malloc_size(void* p) __THROW { return tc_malloc_size(p); } size_t malloc_usable_size(void* p) __THROW { return tc_malloc_size(p); } } // extern "C" // No need to do anything at tcmalloc-registration time: we do it all // via overriding weak symbols (at link time). static void ReplaceSystemAlloc() { } #endif // TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_ gperftools-2.4/src/page_heap.h0000644000000000000000000002716512440704174013321 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #ifndef TCMALLOC_PAGE_HEAP_H_ #define TCMALLOC_PAGE_HEAP_H_ #include #include // for size_t #ifdef HAVE_STDINT_H #include // for uint64_t, int64_t, uint16_t #endif #include #include "base/basictypes.h" #include "common.h" #include "packed-cache-inl.h" #include "pagemap.h" #include "span.h" // We need to dllexport PageHeap just for the unittest. MSVC complains // that we don't dllexport the PageHeap members, but we don't need to // test those, so I just suppress this warning. #ifdef _MSC_VER #pragma warning(push) #pragma warning(disable:4251) #endif // This #ifdef should almost never be set. Set NO_TCMALLOC_SAMPLES if // you're porting to a system where you really can't get a stacktrace. // Because we control the definition of GetStackTrace, all clients of // GetStackTrace should #include us rather than stacktrace.h. #ifdef NO_TCMALLOC_SAMPLES // We use #define so code compiles even if you #include stacktrace.h somehow. # define GetStackTrace(stack, depth, skip) (0) #else # include #endif namespace base { struct MallocRange; } namespace tcmalloc { // ------------------------------------------------------------------------- // Map from page-id to per-page data // ------------------------------------------------------------------------- // We use PageMap2<> for 32-bit and PageMap3<> for 64-bit machines. // We also use a simple one-level cache for hot PageID-to-sizeclass mappings, // because sometimes the sizeclass is all the information we need. // Selector class -- general selector uses 3-level map template class MapSelector { public: typedef TCMalloc_PageMap3 Type; typedef PackedCache CacheType; }; // A two-level map for 32-bit machines template <> class MapSelector<32> { public: typedef TCMalloc_PageMap2<32-kPageShift> Type; typedef PackedCache<32-kPageShift, uint16_t> CacheType; }; // ------------------------------------------------------------------------- // Page-level allocator // * Eager coalescing // // Heap for page-level allocation. We allow allocating and freeing a // contiguous runs of pages (called a "span"). // ------------------------------------------------------------------------- class PERFTOOLS_DLL_DECL PageHeap { public: PageHeap(); // Allocate a run of "n" pages. Returns zero if out of memory. // Caller should not pass "n == 0" -- instead, n should have // been rounded up already. Span* New(Length n); // Delete the span "[p, p+n-1]". // REQUIRES: span was returned by earlier call to New() and // has not yet been deleted. void Delete(Span* span); // Mark an allocated span as being used for small objects of the // specified size-class. // REQUIRES: span was returned by an earlier call to New() // and has not yet been deleted. void RegisterSizeClass(Span* span, size_t sc); // Split an allocated span into two spans: one of length "n" pages // followed by another span of length "span->length - n" pages. // Modifies "*span" to point to the first span of length "n" pages. // Returns a pointer to the second span. // // REQUIRES: "0 < n < span->length" // REQUIRES: span->location == IN_USE // REQUIRES: span->sizeclass == 0 Span* Split(Span* span, Length n); // Return the descriptor for the specified page. Returns NULL if // this PageID was not allocated previously. inline Span* GetDescriptor(PageID p) const { return reinterpret_cast(pagemap_.get(p)); } // If this page heap is managing a range with starting page # >= start, // store info about the range in *r and return true. Else return false. bool GetNextRange(PageID start, base::MallocRange* r); // Page heap statistics struct Stats { Stats() : system_bytes(0), free_bytes(0), unmapped_bytes(0), committed_bytes(0) {} uint64_t system_bytes; // Total bytes allocated from system uint64_t free_bytes; // Total bytes on normal freelists uint64_t unmapped_bytes; // Total bytes on returned freelists uint64_t committed_bytes; // Bytes committed, always <= system_bytes_. }; inline Stats stats() const { return stats_; } struct SmallSpanStats { // For each free list of small spans, the length (in spans) of the // normal and returned free lists for that size. int64 normal_length[kMaxPages]; int64 returned_length[kMaxPages]; }; void GetSmallSpanStats(SmallSpanStats* result); // Stats for free large spans (i.e., spans with more than kMaxPages pages). struct LargeSpanStats { int64 spans; // Number of such spans int64 normal_pages; // Combined page length of normal large spans int64 returned_pages; // Combined page length of unmapped spans }; void GetLargeSpanStats(LargeSpanStats* result); bool Check(); // Like Check() but does some more comprehensive checking. bool CheckExpensive(); bool CheckList(Span* list, Length min_pages, Length max_pages, int freelist); // ON_NORMAL_FREELIST or ON_RETURNED_FREELIST // Try to release at least num_pages for reuse by the OS. Returns // the actual number of pages released, which may be less than // num_pages if there weren't enough pages to release. The result // may also be larger than num_pages since page_heap might decide to // release one large range instead of fragmenting it into two // smaller released and unreleased ranges. Length ReleaseAtLeastNPages(Length num_pages); // Return 0 if we have no information, or else the correct sizeclass for p. // Reads and writes to pagemap_cache_ do not require locking. // The entries are 64 bits on 64-bit hardware and 16 bits on // 32-bit hardware, and we don't mind raciness as long as each read of // an entry yields a valid entry, not a partially updated entry. size_t GetSizeClassIfCached(PageID p) const { return pagemap_cache_.GetOrDefault(p, 0); } void CacheSizeClass(PageID p, size_t cl) const { pagemap_cache_.Put(p, cl); } bool GetAggressiveDecommit(void) {return aggressive_decommit_;} void SetAggressiveDecommit(bool aggressive_decommit) { aggressive_decommit_ = aggressive_decommit; } private: // Allocates a big block of memory for the pagemap once we reach more than // 128MB static const size_t kPageMapBigAllocationThreshold = 128 << 20; // Minimum number of pages to fetch from system at a time. Must be // significantly bigger than kBlockSize to amortize system-call // overhead, and also to reduce external fragementation. Also, we // should keep this value big because various incarnations of Linux // have small limits on the number of mmap() regions per // address-space. // REQUIRED: kMinSystemAlloc <= kMaxPages; static const int kMinSystemAlloc = kMaxPages; // Never delay scavenging for more than the following number of // deallocated pages. With 4K pages, this comes to 4GB of // deallocation. static const int kMaxReleaseDelay = 1 << 20; // If there is nothing to release, wait for so many pages before // scavenging again. With 4K pages, this comes to 1GB of memory. static const int kDefaultReleaseDelay = 1 << 18; // Pick the appropriate map and cache types based on pointer size typedef MapSelector::Type PageMap; typedef MapSelector::CacheType PageMapCache; PageMap pagemap_; mutable PageMapCache pagemap_cache_; // We segregate spans of a given size into two circular linked // lists: one for normal spans, and one for spans whose memory // has been returned to the system. struct SpanList { Span normal; Span returned; }; // List of free spans of length >= kMaxPages SpanList large_; // Array mapping from span length to a doubly linked list of free spans SpanList free_[kMaxPages]; // Statistics on system, free, and unmapped bytes Stats stats_; Span* SearchFreeAndLargeLists(Length n); bool GrowHeap(Length n); // REQUIRES: span->length >= n // REQUIRES: span->location != IN_USE // Remove span from its free list, and move any leftover part of // span into appropriate free lists. Also update "span" to have // length exactly "n" and mark it as non-free so it can be returned // to the client. After all that, decrease free_pages_ by n and // return span. Span* Carve(Span* span, Length n); void RecordSpan(Span* span) { pagemap_.set(span->start, span); if (span->length > 1) { pagemap_.set(span->start + span->length - 1, span); } } // Allocate a large span of length == n. If successful, returns a // span of exactly the specified length. Else, returns NULL. Span* AllocLarge(Length n); // Coalesce span with neighboring spans if possible, prepend to // appropriate free list, and adjust stats. void MergeIntoFreeList(Span* span); // Commit the span. void CommitSpan(Span* span); // Decommit the span. bool DecommitSpan(Span* span); // Prepends span to appropriate free list, and adjusts stats. void PrependToFreeList(Span* span); // Removes span from its free list, and adjust stats. void RemoveFromFreeList(Span* span); // Incrementally release some memory to the system. // IncrementalScavenge(n) is called whenever n pages are freed. void IncrementalScavenge(Length n); // Release the last span on the normal portion of this list. // Return the length of that span or zero if release failed. Length ReleaseLastNormalSpan(SpanList* slist); // Checks if we are allowed to take more memory from the system. // If limit is reached and allowRelease is true, tries to release // some unused spans. bool EnsureLimit(Length n, bool allowRelease = true); bool MayMergeSpans(Span *span, Span *other); // Number of pages to deallocate before doing more scavenging int64_t scavenge_counter_; // Index of last free list where we released memory to the OS. int release_index_; bool aggressive_decommit_; }; } // namespace tcmalloc #ifdef _MSC_VER #pragma warning(pop) #endif #endif // TCMALLOC_PAGE_HEAP_H_ gperftools-2.4/src/page_heap_allocator.h0000644000000000000000000000756212440704174015360 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #ifndef TCMALLOC_PAGE_HEAP_ALLOCATOR_H_ #define TCMALLOC_PAGE_HEAP_ALLOCATOR_H_ #include // for NULL, size_t #include "common.h" // for MetaDataAlloc #include "internal_logging.h" // for ASSERT namespace tcmalloc { // Simple allocator for objects of a specified type. External locking // is required before accessing one of these objects. template class PageHeapAllocator { public: // We use an explicit Init function because these variables are statically // allocated and their constructors might not have run by the time some // other static variable tries to allocate memory. void Init() { ASSERT(sizeof(T) <= kAllocIncrement); inuse_ = 0; free_area_ = NULL; free_avail_ = 0; free_list_ = NULL; // Reserve some space at the beginning to avoid fragmentation. Delete(New()); } T* New() { // Consult free list void* result; if (free_list_ != NULL) { result = free_list_; free_list_ = *(reinterpret_cast(result)); } else { if (free_avail_ < sizeof(T)) { // Need more room. We assume that MetaDataAlloc returns // suitably aligned memory. free_area_ = reinterpret_cast(MetaDataAlloc(kAllocIncrement)); if (free_area_ == NULL) { Log(kCrash, __FILE__, __LINE__, "FATAL ERROR: Out of memory trying to allocate internal " "tcmalloc data (bytes, object-size)", kAllocIncrement, sizeof(T)); } free_avail_ = kAllocIncrement; } result = free_area_; free_area_ += sizeof(T); free_avail_ -= sizeof(T); } inuse_++; return reinterpret_cast(result); } void Delete(T* p) { *(reinterpret_cast(p)) = free_list_; free_list_ = p; inuse_--; } int inuse() const { return inuse_; } private: // How much to allocate from system at a time static const int kAllocIncrement = 128 << 10; // Free area from which to carve new objects char* free_area_; size_t free_avail_; // Free list of already carved objects void* free_list_; // Number of allocated but unfreed objects int inuse_; }; } // namespace tcmalloc #endif // TCMALLOC_PAGE_HEAP_ALLOCATOR_H_ gperftools-2.4/src/span.h0000644000000000000000000000722712440704174012346 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // A Span is a contiguous run of pages. #ifndef TCMALLOC_SPAN_H_ #define TCMALLOC_SPAN_H_ #include #include "common.h" namespace tcmalloc { // Information kept for a span (a contiguous run of pages). struct Span { PageID start; // Starting page number Length length; // Number of pages in span Span* next; // Used when in link list Span* prev; // Used when in link list void* objects; // Linked list of free objects unsigned int refcount : 16; // Number of non-free objects unsigned int sizeclass : 8; // Size-class for small objects (or 0) unsigned int location : 2; // Is the span on a freelist, and if so, which? unsigned int sample : 1; // Sampled object? #undef SPAN_HISTORY #ifdef SPAN_HISTORY // For debugging, we can keep a log events per span int nexthistory; char history[64]; int value[64]; #endif // What freelist the span is on: IN_USE if on none, or normal or returned enum { IN_USE, ON_NORMAL_FREELIST, ON_RETURNED_FREELIST }; }; #ifdef SPAN_HISTORY void Event(Span* span, char op, int v = 0); #else #define Event(s,o,v) ((void) 0) #endif // Allocator/deallocator for spans Span* NewSpan(PageID p, Length len); void DeleteSpan(Span* span); // ------------------------------------------------------------------------- // Doubly linked list of spans. // ------------------------------------------------------------------------- // Initialize *list to an empty list. void DLL_Init(Span* list); // Remove 'span' from the linked list in which it resides, updating the // pointers of adjacent Spans and setting span's next and prev to NULL. void DLL_Remove(Span* span); // Return true iff "list" is empty. inline bool DLL_IsEmpty(const Span* list) { return list->next == list; } // Add span to the front of list. void DLL_Prepend(Span* list, Span* span); // Return the length of the linked list. O(n) int DLL_Length(const Span* list); } // namespace tcmalloc #endif // TCMALLOC_SPAN_H_ gperftools-2.4/src/static_vars.h0000644000000000000000000001055012440704174013720 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Ken Ashcraft // // Static variables shared by multiple classes. #ifndef TCMALLOC_STATIC_VARS_H_ #define TCMALLOC_STATIC_VARS_H_ #include #include "base/spinlock.h" #include "central_freelist.h" #include "common.h" #include "page_heap.h" #include "page_heap_allocator.h" #include "span.h" #include "stack_trace_table.h" namespace tcmalloc { class Static { public: // Linker initialized, so this lock can be accessed at any time. static SpinLock* pageheap_lock() { return &pageheap_lock_; } // Must be called before calling any of the accessors below. static void InitStaticVars(); // Central cache -- an array of free-lists, one per size-class. // We have a separate lock per free-list to reduce contention. static CentralFreeListPadded* central_cache() { return central_cache_; } static SizeMap* sizemap() { return &sizemap_; } ////////////////////////////////////////////////////////////////////// // In addition to the explicit initialization comment, the variables below // must be protected by pageheap_lock. // Page-level allocator. static PageHeap* pageheap() { return pageheap_; } static PageHeapAllocator* span_allocator() { return &span_allocator_; } static PageHeapAllocator* stacktrace_allocator() { return &stacktrace_allocator_; } static StackTrace* growth_stacks() { return growth_stacks_; } static void set_growth_stacks(StackTrace* s) { growth_stacks_ = s; } // State kept for sampled allocations (/pprof/heap support) static Span* sampled_objects() { return &sampled_objects_; } static PageHeapAllocator* bucket_allocator() { return &bucket_allocator_; } // Check if InitStaticVars() has been run. static bool IsInited() { return pageheap() != NULL; } private: static SpinLock pageheap_lock_; // These static variables require explicit initialization. We cannot // count on their constructors to do any initialization because other // static variables may try to allocate memory before these variables // can run their constructors. static SizeMap sizemap_; static CentralFreeListPadded central_cache_[kNumClasses]; static PageHeapAllocator span_allocator_; static PageHeapAllocator stacktrace_allocator_; static Span sampled_objects_; static PageHeapAllocator bucket_allocator_; // Linked list of stack traces recorded every time we allocated memory // from the system. Useful for finding allocation sites that cause // increase in the footprint of the system. The linked list pointer // is stored in trace->stack[kMaxStackDepth-1]. static StackTrace* growth_stacks_; static PageHeap* pageheap_; }; } // namespace tcmalloc #endif // TCMALLOC_STATIC_VARS_H_ gperftools-2.4/src/symbolize.h0000644000000000000000000000620412440704174013414 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2009, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein #ifndef TCMALLOC_SYMBOLIZE_H_ #define TCMALLOC_SYMBOLIZE_H_ #include "config.h" #ifdef HAVE_STDINT_H #include // for uintptr_t #endif #include // for NULL #include using std::map; // SymbolTable encapsulates the address operations necessary for stack trace // symbolization. A common use-case is to Add() the addresses from one or // several stack traces to a table, call Symbolize() once and use GetSymbol() // to get the symbol names for pretty-printing the stack traces. class SymbolTable { public: SymbolTable() : symbol_buffer_(NULL) {} ~SymbolTable() { delete[] symbol_buffer_; } // Adds an address to the table. This may overwrite a currently known symbol // name, so Add() should not generally be called after Symbolize(). void Add(const void* addr); // Returns the symbol name for addr, if the given address was added before // the last successful call to Symbolize(). Otherwise may return an empty // c-string. const char* GetSymbol(const void* addr); // Obtains the symbol names for the addresses stored in the table and returns // the number of addresses actually symbolized. int Symbolize(); private: typedef map SymbolMap; // An average size of memory allocated for a stack trace symbol. static const int kSymbolSize = 1024; // Map from addresses to symbol names. SymbolMap symbolization_table_; // Pointer to the buffer that stores the symbol names. char *symbol_buffer_; }; #endif // TCMALLOC_SYMBOLIZE_H_ gperftools-2.4/src/thread_cache.h0000644000000000000000000003561512450132572013777 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #ifndef TCMALLOC_THREAD_CACHE_H_ #define TCMALLOC_THREAD_CACHE_H_ #include #ifdef HAVE_PTHREAD #include // for pthread_t, pthread_key_t #endif #include // for size_t, NULL #ifdef HAVE_STDINT_H #include // for uint32_t, uint64_t #endif #include // for ssize_t #include "common.h" #include "linked_list.h" #include "maybe_threads.h" #include "page_heap_allocator.h" #include "sampler.h" #include "static_vars.h" #include "common.h" // for SizeMap, kMaxSize, etc #include "internal_logging.h" // for ASSERT, etc #include "linked_list.h" // for SLL_Pop, SLL_PopRange, etc #include "page_heap_allocator.h" // for PageHeapAllocator #include "sampler.h" // for Sampler #include "static_vars.h" // for Static namespace tcmalloc { //------------------------------------------------------------------- // Data kept per thread //------------------------------------------------------------------- class ThreadCache { public: #ifdef HAVE_TLS enum { have_tls = true }; #else enum { have_tls = false }; #endif // All ThreadCache objects are kept in a linked list (for stats collection) ThreadCache* next_; ThreadCache* prev_; void Init(pthread_t tid); void Cleanup(); // Accessors (mostly just for printing stats) int freelist_length(size_t cl) const { return list_[cl].length(); } // Total byte size in cache size_t Size() const { return size_; } // Allocate an object of the given size and class. The size given // must be the same as the size of the class in the size map. void* Allocate(size_t size, size_t cl); void Deallocate(void* ptr, size_t size_class); void Scavenge(); int GetSamplePeriod(); // Record allocation of "k" bytes. Return true iff allocation // should be sampled bool SampleAllocation(size_t k); static void InitModule(); static void InitTSD(); static ThreadCache* GetThreadHeap(); static ThreadCache* GetCache(); static ThreadCache* GetCacheIfPresent(); static ThreadCache* GetCacheWhichMustBePresent(); static ThreadCache* CreateCacheIfNecessary(); static void BecomeIdle(); static size_t MinSizeForSlowPath(); static void SetMinSizeForSlowPath(size_t size); static bool IsFastPathAllowed() { return MinSizeForSlowPath() != 0; } // Return the number of thread heaps in use. static inline int HeapsInUse(); // Adds to *total_bytes the total number of bytes used by all thread heaps. // Also, if class_count is not NULL, it must be an array of size kNumClasses, // and this function will increment each element of class_count by the number // of items in all thread-local freelists of the corresponding size class. // REQUIRES: Static::pageheap_lock is held. static void GetThreadStats(uint64_t* total_bytes, uint64_t* class_count); // Sets the total thread cache size to new_size, recomputing the // individual thread cache sizes as necessary. // REQUIRES: Static::pageheap lock is held. static void set_overall_thread_cache_size(size_t new_size); static size_t overall_thread_cache_size() { return overall_thread_cache_size_; } private: class FreeList { private: void* list_; // Linked list of nodes #ifdef _LP64 // On 64-bit hardware, manipulating 16-bit values may be slightly slow. uint32_t length_; // Current length. uint32_t lowater_; // Low water mark for list length. uint32_t max_length_; // Dynamic max list length based on usage. // Tracks the number of times a deallocation has caused // length_ > max_length_. After the kMaxOverages'th time, max_length_ // shrinks and length_overages_ is reset to zero. uint32_t length_overages_; #else // If we aren't using 64-bit pointers then pack these into less space. uint16_t length_; uint16_t lowater_; uint16_t max_length_; uint16_t length_overages_; #endif public: void Init() { list_ = NULL; length_ = 0; lowater_ = 0; max_length_ = 1; length_overages_ = 0; } // Return current length of list size_t length() const { return length_; } // Return the maximum length of the list. size_t max_length() const { return max_length_; } // Set the maximum length of the list. If 'new_max' > length(), the // client is responsible for removing objects from the list. void set_max_length(size_t new_max) { max_length_ = new_max; } // Return the number of times that length() has gone over max_length(). size_t length_overages() const { return length_overages_; } void set_length_overages(size_t new_count) { length_overages_ = new_count; } // Is list empty? bool empty() const { return list_ == NULL; } // Low-water mark management int lowwatermark() const { return lowater_; } void clear_lowwatermark() { lowater_ = length_; } void Push(void* ptr) { SLL_Push(&list_, ptr); length_++; } void* Pop() { ASSERT(list_ != NULL); length_--; if (length_ < lowater_) lowater_ = length_; return SLL_Pop(&list_); } void* Next() { return SLL_Next(&list_); } void PushRange(int N, void *start, void *end) { SLL_PushRange(&list_, start, end); length_ += N; } void PopRange(int N, void **start, void **end) { SLL_PopRange(&list_, N, start, end); ASSERT(length_ >= N); length_ -= N; if (length_ < lowater_) lowater_ = length_; } }; // Gets and returns an object from the central cache, and, if possible, // also adds some objects of that size class to this thread cache. void* FetchFromCentralCache(size_t cl, size_t byte_size); // Releases some number of items from src. Adjusts the list's max_length // to eventually converge on num_objects_to_move(cl). void ListTooLong(FreeList* src, size_t cl); // Releases N items from this thread cache. void ReleaseToCentralCache(FreeList* src, size_t cl, int N); // Increase max_size_ by reducing unclaimed_cache_space_ or by // reducing the max_size_ of some other thread. In both cases, // the delta is kStealAmount. void IncreaseCacheLimit(); // Same as above but requires Static::pageheap_lock() is held. void IncreaseCacheLimitLocked(); // If TLS is available, we also store a copy of the per-thread object // in a __thread variable since __thread variables are faster to read // than pthread_getspecific(). We still need pthread_setspecific() // because __thread variables provide no way to run cleanup code when // a thread is destroyed. // We also give a hint to the compiler to use the "initial exec" TLS // model. This is faster than the default TLS model, at the cost that // you cannot dlopen this library. (To see the difference, look at // the CPU use of __tls_get_addr with and without this attribute.) // Since we don't really use dlopen in google code -- and using dlopen // on a malloc replacement is asking for trouble in any case -- that's // a good tradeoff for us. #ifdef HAVE___ATTRIBUTE__ #define ATTR_INITIAL_EXEC __attribute__ ((tls_model ("initial-exec"))) #else #define ATTR_INITIAL_EXEC #endif #ifdef HAVE_TLS struct ThreadLocalData { ThreadCache* heap; // min_size_for_slow_path is 0 if heap is NULL or kMaxSize + 1 otherwise. // The latter is the common case and allows allocation to be faster // than it would be otherwise: typically a single branch will // determine that the requested allocation is no more than kMaxSize // and we can then proceed, knowing that global and thread-local tcmalloc // state is initialized. size_t min_size_for_slow_path; }; static __thread ThreadLocalData threadlocal_data_ ATTR_INITIAL_EXEC; #endif // Thread-specific key. Initialization here is somewhat tricky // because some Linux startup code invokes malloc() before it // is in a good enough state to handle pthread_keycreate(). // Therefore, we use TSD keys only after tsd_inited is set to true. // Until then, we use a slow path to get the heap object. static bool tsd_inited_; static pthread_key_t heap_key_; // Linked list of heap objects. Protected by Static::pageheap_lock. static ThreadCache* thread_heaps_; static int thread_heap_count_; // A pointer to one of the objects in thread_heaps_. Represents // the next ThreadCache from which a thread over its max_size_ should // steal memory limit. Round-robin through all of the objects in // thread_heaps_. Protected by Static::pageheap_lock. static ThreadCache* next_memory_steal_; // Overall thread cache size. Protected by Static::pageheap_lock. static size_t overall_thread_cache_size_; // Global per-thread cache size. Writes are protected by // Static::pageheap_lock. Reads are done without any locking, which should be // fine as long as size_t can be written atomically and we don't place // invariants between this variable and other pieces of state. static volatile size_t per_thread_cache_size_; // Represents overall_thread_cache_size_ minus the sum of max_size_ // across all ThreadCaches. Protected by Static::pageheap_lock. static ssize_t unclaimed_cache_space_; // This class is laid out with the most frequently used fields // first so that hot elements are placed on the same cache line. size_t size_; // Combined size of data size_t max_size_; // size_ > max_size_ --> Scavenge() // We sample allocations, biased by the size of the allocation Sampler sampler_; // A sampler FreeList list_[kNumClasses]; // Array indexed by size-class pthread_t tid_; // Which thread owns it bool in_setspecific_; // In call to pthread_setspecific? // Allocate a new heap. REQUIRES: Static::pageheap_lock is held. static ThreadCache* NewHeap(pthread_t tid); // Use only as pthread thread-specific destructor function. static void DestroyThreadCache(void* ptr); static void DeleteCache(ThreadCache* heap); static void RecomputePerThreadCacheSize(); // Ensure that this class is cacheline-aligned. This is critical for // performance, as false sharing would negate many of the benefits // of a per-thread cache. } CACHELINE_ALIGNED; // Allocator for thread heaps // This is logically part of the ThreadCache class, but MSVC, at // least, does not like using ThreadCache as a template argument // before the class is fully defined. So we put it outside the class. extern PageHeapAllocator threadcache_allocator; inline int ThreadCache::HeapsInUse() { return threadcache_allocator.inuse(); } inline bool ThreadCache::SampleAllocation(size_t k) { return sampler_.SampleAllocation(k); } inline void* ThreadCache::Allocate(size_t size, size_t cl) { ASSERT(size <= kMaxSize); ASSERT(size == Static::sizemap()->ByteSizeForClass(cl)); FreeList* list = &list_[cl]; if (list->empty()) { return FetchFromCentralCache(cl, size); } size_ -= size; return list->Pop(); } inline void ThreadCache::Deallocate(void* ptr, size_t cl) { FreeList* list = &list_[cl]; size_ += Static::sizemap()->ByteSizeForClass(cl); ssize_t size_headroom = max_size_ - size_ - 1; // This catches back-to-back frees of allocs in the same size // class. A more comprehensive (and expensive) test would be to walk // the entire freelist. But this might be enough to find some bugs. ASSERT(ptr != list->Next()); list->Push(ptr); ssize_t list_headroom = static_cast(list->max_length()) - list->length(); // There are two relatively uncommon things that require further work. // In the common case we're done, and in that case we need a single branch // because of the bitwise-or trick that follows. if ((list_headroom | size_headroom) < 0) { if (list_headroom < 0) { ListTooLong(list, cl); } if (size_ >= max_size_) Scavenge(); } } inline ThreadCache* ThreadCache::GetThreadHeap() { #ifdef HAVE_TLS return threadlocal_data_.heap; #else return reinterpret_cast( perftools_pthread_getspecific(heap_key_)); #endif } inline ThreadCache* ThreadCache::GetCacheWhichMustBePresent() { #ifdef HAVE_TLS ASSERT(threadlocal_data_.heap); return threadlocal_data_.heap; #else ASSERT(perftools_pthread_getspecific(heap_key_)); return reinterpret_cast( perftools_pthread_getspecific(heap_key_)); #endif } inline ThreadCache* ThreadCache::GetCache() { ThreadCache* ptr = NULL; if (!tsd_inited_) { InitModule(); } else { ptr = GetThreadHeap(); } if (ptr == NULL) ptr = CreateCacheIfNecessary(); return ptr; } // In deletion paths, we do not try to create a thread-cache. This is // because we may be in the thread destruction code and may have // already cleaned up the cache for this thread. inline ThreadCache* ThreadCache::GetCacheIfPresent() { if (!tsd_inited_) return NULL; return GetThreadHeap(); } inline size_t ThreadCache::MinSizeForSlowPath() { #ifdef HAVE_TLS return threadlocal_data_.min_size_for_slow_path; #else return 0; #endif } inline void ThreadCache::SetMinSizeForSlowPath(size_t size) { #ifdef HAVE_TLS threadlocal_data_.min_size_for_slow_path = size; #endif } } // namespace tcmalloc #endif // TCMALLOC_THREAD_CACHE_H_ gperftools-2.4/src/stack_trace_table.h0000644000000000000000000000563312440704174015036 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2009, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Andrew Fikes // // Utility class for coalescing sampled stack traces. Not thread-safe. #ifndef TCMALLOC_STACK_TRACE_TABLE_H_ #define TCMALLOC_STACK_TRACE_TABLE_H_ #include #ifdef HAVE_STDINT_H #include // for uintptr_t #endif #include "common.h" namespace tcmalloc { class PERFTOOLS_DLL_DECL StackTraceTable { public: // REQUIRES: L < pageheap_lock StackTraceTable(); ~StackTraceTable(); // Adds stack trace "t" to table. // // REQUIRES: L >= pageheap_lock void AddTrace(const StackTrace& t); // Returns stack traces formatted per MallocExtension guidelines. // May return NULL on error. Clears state before returning. // // REQUIRES: L < pageheap_lock void** ReadStackTracesAndClear(); // Exposed for PageHeapAllocator struct Bucket { // Key uintptr_t hash; StackTrace trace; // Payload int count; Bucket* next; bool KeyEqual(uintptr_t h, const StackTrace& t) const; }; // For testing int depth_total() const { return depth_total_; } int bucket_total() const { return bucket_total_; } private: static const int kHashTableSize = 1 << 14; // => table_ is 128k bool error_; int depth_total_; int bucket_total_; Bucket** table_; }; } // namespace tcmalloc #endif // TCMALLOC_STACK_TRACE_TABLE_H_ gperftools-2.4/src/malloc_hook-inl.h0000644000000000000000000002300412450132572014441 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // This has the implementation details of malloc_hook that are needed // to use malloc-hook inside the tcmalloc system. It does not hold // any of the client-facing calls that are used to add new hooks. #ifndef _MALLOC_HOOK_INL_H_ #define _MALLOC_HOOK_INL_H_ #include #include #include "base/atomicops.h" #include "base/basictypes.h" #include namespace base { namespace internal { // Capacity of 8 means that HookList is 9 words. static const int kHookListCapacity = 8; // last entry is reserved for deprecated "singular" hooks. So we have // 7 "normal" hooks per list static const int kHookListMaxValues = 7; static const int kHookListSingularIdx = 7; // HookList: a class that provides synchronized insertions and removals and // lockless traversal. Most of the implementation is in malloc_hook.cc. template struct PERFTOOLS_DLL_DECL HookList { COMPILE_ASSERT(sizeof(T) <= sizeof(AtomicWord), T_should_fit_in_AtomicWord); // Adds value to the list. Note that duplicates are allowed. Thread-safe and // blocking (acquires hooklist_spinlock). Returns true on success; false // otherwise (failures include invalid value and no space left). bool Add(T value); void FixupPrivEndLocked(); // Removes the first entry matching value from the list. Thread-safe and // blocking (acquires hooklist_spinlock). Returns true on success; false // otherwise (failures include invalid value and no value found). bool Remove(T value); // Store up to n values of the list in output_array, and return the number of // elements stored. Thread-safe and non-blocking. This is fast (one memory // access) if the list is empty. int Traverse(T* output_array, int n) const; // Fast inline implementation for fast path of Invoke*Hook. bool empty() const { return base::subtle::NoBarrier_Load(&priv_end) == 0; } // Used purely to handle deprecated singular hooks T GetSingular() const { const AtomicWord *place = &priv_data[kHookListSingularIdx]; return bit_cast(base::subtle::NoBarrier_Load(place)); } T ExchangeSingular(T new_val); // This internal data is not private so that the class is an aggregate and can // be initialized by the linker. Don't access this directly. Use the // INIT_HOOK_LIST macro in malloc_hook.cc. // One more than the index of the last valid element in priv_data. During // 'Remove' this may be past the last valid element in priv_data, but // subsequent values will be 0. // // Index kHookListCapacity-1 is reserved as 'deprecated' single hook pointer AtomicWord priv_end; AtomicWord priv_data[kHookListCapacity]; }; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList new_hooks_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList delete_hooks_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList premmap_hooks_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList mmap_hooks_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList mmap_replacement_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList munmap_hooks_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList munmap_replacement_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList mremap_hooks_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList presbrk_hooks_; ATTRIBUTE_VISIBILITY_HIDDEN extern HookList sbrk_hooks_; } } // namespace base::internal // The following method is DEPRECATED inline MallocHook::NewHook MallocHook::GetNewHook() { return base::internal::new_hooks_.GetSingular(); } inline void MallocHook::InvokeNewHook(const void* p, size_t s) { if (!base::internal::new_hooks_.empty()) { InvokeNewHookSlow(p, s); } } // The following method is DEPRECATED inline MallocHook::DeleteHook MallocHook::GetDeleteHook() { return base::internal::delete_hooks_.GetSingular(); } inline void MallocHook::InvokeDeleteHook(const void* p) { if (!base::internal::delete_hooks_.empty()) { InvokeDeleteHookSlow(p); } } // The following method is DEPRECATED inline MallocHook::PreMmapHook MallocHook::GetPreMmapHook() { return base::internal::premmap_hooks_.GetSingular(); } inline void MallocHook::InvokePreMmapHook(const void* start, size_t size, int protection, int flags, int fd, off_t offset) { if (!base::internal::premmap_hooks_.empty()) { InvokePreMmapHookSlow(start, size, protection, flags, fd, offset); } } // The following method is DEPRECATED inline MallocHook::MmapHook MallocHook::GetMmapHook() { return base::internal::mmap_hooks_.GetSingular(); } inline void MallocHook::InvokeMmapHook(const void* result, const void* start, size_t size, int protection, int flags, int fd, off_t offset) { if (!base::internal::mmap_hooks_.empty()) { InvokeMmapHookSlow(result, start, size, protection, flags, fd, offset); } } inline bool MallocHook::InvokeMmapReplacement(const void* start, size_t size, int protection, int flags, int fd, off_t offset, void** result) { if (!base::internal::mmap_replacement_.empty()) { return InvokeMmapReplacementSlow(start, size, protection, flags, fd, offset, result); } return false; } // The following method is DEPRECATED inline MallocHook::MunmapHook MallocHook::GetMunmapHook() { return base::internal::munmap_hooks_.GetSingular(); } inline void MallocHook::InvokeMunmapHook(const void* p, size_t size) { if (!base::internal::munmap_hooks_.empty()) { InvokeMunmapHookSlow(p, size); } } inline bool MallocHook::InvokeMunmapReplacement( const void* p, size_t size, int* result) { if (!base::internal::mmap_replacement_.empty()) { return InvokeMunmapReplacementSlow(p, size, result); } return false; } // The following method is DEPRECATED inline MallocHook::MremapHook MallocHook::GetMremapHook() { return base::internal::mremap_hooks_.GetSingular(); } inline void MallocHook::InvokeMremapHook(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr) { if (!base::internal::mremap_hooks_.empty()) { InvokeMremapHookSlow(result, old_addr, old_size, new_size, flags, new_addr); } } // The following method is DEPRECATED inline MallocHook::PreSbrkHook MallocHook::GetPreSbrkHook() { return base::internal::presbrk_hooks_.GetSingular(); } inline void MallocHook::InvokePreSbrkHook(ptrdiff_t increment) { if (!base::internal::presbrk_hooks_.empty() && increment != 0) { InvokePreSbrkHookSlow(increment); } } // The following method is DEPRECATED inline MallocHook::SbrkHook MallocHook::GetSbrkHook() { return base::internal::sbrk_hooks_.GetSingular(); } inline void MallocHook::InvokeSbrkHook(const void* result, ptrdiff_t increment) { if (!base::internal::sbrk_hooks_.empty() && increment != 0) { InvokeSbrkHookSlow(result, increment); } } #endif /* _MALLOC_HOOK_INL_H_ */ gperftools-2.4/src/malloc_hook_mmap_linux.h0000755000000000000000000002036512440704174016126 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // We define mmap() and mmap64(), which somewhat reimplements libc's mmap // syscall stubs. Unfortunately libc only exports the stubs via weak symbols // (which we're overriding with our mmap64() and mmap() wrappers) so we can't // just call through to them. #ifndef __linux # error Should only be including malloc_hook_mmap_linux.h on linux systems. #endif #include #include #include #include #include "base/linux_syscall_support.h" // The x86-32 case and the x86-64 case differ: // 32b has a mmap2() syscall, 64b does not. // 64b and 32b have different calling conventions for mmap(). // I test for 64-bit first so I don't have to do things like // '#if (defined(__mips__) && !defined(__MIPS64__))' as a mips32 check. #if defined(__x86_64__) || defined(__PPC64__) || defined(__aarch64__) || (defined(_MIPS_SIM) && _MIPS_SIM == _ABI64) static inline void* do_mmap64(void *start, size_t length, int prot, int flags, int fd, __off64_t offset) __THROW { return sys_mmap(start, length, prot, flags, fd, offset); } #define MALLOC_HOOK_HAVE_DO_MMAP64 1 #elif defined(__i386__) || defined(__PPC__) || defined(__mips__) || \ defined(__arm__) static inline void* do_mmap64(void *start, size_t length, int prot, int flags, int fd, __off64_t offset) __THROW { void *result; // Try mmap2() unless it's not supported static bool have_mmap2 = true; if (have_mmap2) { static int pagesize = 0; if (!pagesize) pagesize = getpagesize(); // Check that the offset is page aligned if (offset & (pagesize - 1)) { result = MAP_FAILED; errno = EINVAL; goto out; } result = (void *)syscall(SYS_mmap2, start, length, prot, flags, fd, (off_t) (offset / pagesize)); if (result != MAP_FAILED || errno != ENOSYS) goto out; // We don't have mmap2() after all - don't bother trying it in future have_mmap2 = false; } if (((off_t)offset) != offset) { // If we're trying to map a 64-bit offset, fail now since we don't // have 64-bit mmap() support. result = MAP_FAILED; errno = EINVAL; goto out; } #ifdef __NR_mmap { // Fall back to old 32-bit offset mmap() call // Old syscall interface cannot handle six args, so pass in an array int32 args[6] = { (int32) start, (int32) length, prot, flags, fd, (off_t) offset }; result = (void *)syscall(SYS_mmap, args); } #else // Some Linux ports like ARM EABI Linux has no mmap, just mmap2. result = MAP_FAILED; #endif out: return result; } #define MALLOC_HOOK_HAVE_DO_MMAP64 1 #endif // #if defined(__x86_64__) #ifdef MALLOC_HOOK_HAVE_DO_MMAP64 // We use do_mmap64 abstraction to put MallocHook::InvokeMmapHook // calls right into mmap and mmap64, so that the stack frames in the caller's // stack are at the same offsets for all the calls of memory allocating // functions. // Put all callers of MallocHook::Invoke* in this module into // malloc_hook section, // so that MallocHook::GetCallerStackTrace can function accurately: // Make sure mmap doesn't get #define'd away by # undef mmap extern "C" { void* mmap64(void *start, size_t length, int prot, int flags, int fd, __off64_t offset ) __THROW ATTRIBUTE_SECTION(malloc_hook); void* mmap(void *start, size_t length,int prot, int flags, int fd, off_t offset) __THROW ATTRIBUTE_SECTION(malloc_hook); int munmap(void* start, size_t length) __THROW ATTRIBUTE_SECTION(malloc_hook); void* mremap(void* old_addr, size_t old_size, size_t new_size, int flags, ...) __THROW ATTRIBUTE_SECTION(malloc_hook); void* sbrk(ptrdiff_t increment) __THROW ATTRIBUTE_SECTION(malloc_hook); } extern "C" void* mmap64(void *start, size_t length, int prot, int flags, int fd, __off64_t offset) __THROW { MallocHook::InvokePreMmapHook(start, length, prot, flags, fd, offset); void *result; if (!MallocHook::InvokeMmapReplacement( start, length, prot, flags, fd, offset, &result)) { result = do_mmap64(start, length, prot, flags, fd, offset); } MallocHook::InvokeMmapHook(result, start, length, prot, flags, fd, offset); return result; } # if !defined(__USE_FILE_OFFSET64) || !defined(__REDIRECT_NTH) extern "C" void* mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) __THROW { MallocHook::InvokePreMmapHook(start, length, prot, flags, fd, offset); void *result; if (!MallocHook::InvokeMmapReplacement( start, length, prot, flags, fd, offset, &result)) { result = do_mmap64(start, length, prot, flags, fd, static_cast(offset)); // avoid sign extension } MallocHook::InvokeMmapHook(result, start, length, prot, flags, fd, offset); return result; } # endif // !defined(__USE_FILE_OFFSET64) || !defined(__REDIRECT_NTH) extern "C" int munmap(void* start, size_t length) __THROW { MallocHook::InvokeMunmapHook(start, length); int result; if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) { result = sys_munmap(start, length); } return result; } extern "C" void* mremap(void* old_addr, size_t old_size, size_t new_size, int flags, ...) __THROW { va_list ap; va_start(ap, flags); void *new_address = va_arg(ap, void *); va_end(ap); void* result = sys_mremap(old_addr, old_size, new_size, flags, new_address); MallocHook::InvokeMremapHook(result, old_addr, old_size, new_size, flags, new_address); return result; } #ifndef __UCLIBC__ // libc's version: extern "C" void* __sbrk(ptrdiff_t increment); extern "C" void* sbrk(ptrdiff_t increment) __THROW { MallocHook::InvokePreSbrkHook(increment); void *result = __sbrk(increment); MallocHook::InvokeSbrkHook(result, increment); return result; } #endif /*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot, int flags, int fd, off_t offset) { void* result; if (!MallocHook::InvokeMmapReplacement( start, length, prot, flags, fd, offset, &result)) { result = do_mmap64(start, length, prot, flags, fd, offset); } return result; } /*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) { int result; if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) { result = syscall(SYS_munmap, start, length); } return result; } #undef MALLOC_HOOK_HAVE_DO_MMAP64 #endif // #ifdef MALLOC_HOOK_HAVE_DO_MMAP64 gperftools-2.4/src/malloc_hook_mmap_freebsd.h0000644000000000000000000001160012440704174016366 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2011, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Override mmap/munmap/mremap/sbrk to provide support for calling the // related hooks (in addition, of course, to doing what these // functions normally do). #ifndef __FreeBSD__ # error Should only be including malloc_hook_mmap_freebsd.h on FreeBSD systems. #endif #include #include #include #include #include // Make sure mmap doesn't get #define'd away by #undef mmap // According to the FreeBSD documentation, use syscall if you do not // need 64-bit alignment otherwise use __syscall. Indeed, syscall // doesn't work correctly in most situations on 64-bit. It's return // type is 'int' so for things like SYS_mmap, it actually truncates // the returned address to 32-bits. #if defined(__amd64__) || defined(__x86_64__) # define MALLOC_HOOK_SYSCALL __syscall #else # define MALLOC_HOOK_SYSCALL syscall #endif extern "C" { void* mmap(void *start, size_t length,int prot, int flags, int fd, off_t offset) __THROW ATTRIBUTE_SECTION(malloc_hook); int munmap(void* start, size_t length) __THROW ATTRIBUTE_SECTION(malloc_hook); void* sbrk(intptr_t increment) __THROW ATTRIBUTE_SECTION(malloc_hook); } static inline void* do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) __THROW { return (void *)MALLOC_HOOK_SYSCALL(SYS_mmap, start, length, prot, flags, fd, offset); } static inline void* do_sbrk(intptr_t increment) { static void *(*libc_sbrk)(intptr_t); if (libc_sbrk == NULL) libc_sbrk = (void *(*)(intptr_t))dlsym(RTLD_NEXT, "sbrk"); return libc_sbrk(increment); } extern "C" void* mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) __THROW { MallocHook::InvokePreMmapHook(start, length, prot, flags, fd, offset); void *result; if (!MallocHook::InvokeMmapReplacement( start, length, prot, flags, fd, offset, &result)) { result = do_mmap(start, length, prot, flags, fd, static_cast(offset)); // avoid sign extension } MallocHook::InvokeMmapHook(result, start, length, prot, flags, fd, offset); return result; } extern "C" int munmap(void* start, size_t length) __THROW { MallocHook::InvokeMunmapHook(start, length); int result; if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) { result = MALLOC_HOOK_SYSCALL(SYS_munmap, start, length); } return result; } extern "C" void* sbrk(intptr_t increment) __THROW { MallocHook::InvokePreSbrkHook(increment); void *result = do_sbrk(increment); MallocHook::InvokeSbrkHook(result, increment); return result; } /*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot, int flags, int fd, off_t offset) { void* result; if (!MallocHook::InvokeMmapReplacement( start, length, prot, flags, fd, offset, &result)) { result = do_mmap(start, length, prot, flags, fd, offset); } return result; } /*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) { int result; if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) { result = MALLOC_HOOK_SYSCALL(SYS_munmap, start, length); } return result; } #undef MALLOC_HOOK_SYSCALL gperftools-2.4/src/addressmap-inl.h0000644000000000000000000003716012440704174014307 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // A fast map from addresses to values. Assumes that addresses are // clustered. The main use is intended to be for heap-profiling. // May be too memory-hungry for other uses. // // We use a user-defined allocator/de-allocator so that we can use // this data structure during heap-profiling. // // IMPLEMENTATION DETAIL: // // Some default definitions/parameters: // * Block -- aligned 128-byte region of the address space // * Cluster -- aligned 1-MB region of the address space // * Block-ID -- block-number within a cluster // * Cluster-ID -- Starting address of cluster divided by cluster size // // We use a three-level map to represent the state: // 1. A hash-table maps from a cluster-ID to the data for that cluster. // 2. For each non-empty cluster we keep an array indexed by // block-ID tht points to the first entry in the linked-list // for the block. // 3. At the bottom, we keep a singly-linked list of all // entries in a block (for non-empty blocks). // // hash table // +-------------+ // | id->cluster |---> ... // | ... | // | id->cluster |---> Cluster // +-------------+ +-------+ Data for one block // | nil | +------------------------------------+ // | ----+---|->[addr/value]-->[addr/value]-->... | // | nil | +------------------------------------+ // | ----+--> ... // | nil | // | ... | // +-------+ // // Note that we require zero-bytes of overhead for completely empty // clusters. The minimum space requirement for a cluster is the size // of the hash-table entry plus a pointer value for each block in // the cluster. Empty blocks impose no extra space requirement. // // The cost of a lookup is: // a. A hash-table lookup to find the cluster // b. An array access in the cluster structure // c. A traversal over the linked-list for a block #ifndef BASE_ADDRESSMAP_INL_H_ #define BASE_ADDRESSMAP_INL_H_ #include "config.h" #include #include #if defined HAVE_STDINT_H #include // to get uint16_t (ISO naming madness) #elif defined HAVE_INTTYPES_H #include // another place uint16_t might be defined #else #include // our last best hope #endif // This class is thread-unsafe -- that is, instances of this class can // not be accessed concurrently by multiple threads -- because the // callback function for Iterate() may mutate contained values. If the // callback functions you pass do not mutate their Value* argument, // AddressMap can be treated as thread-compatible -- that is, it's // safe for multiple threads to call "const" methods on this class, // but not safe for one thread to call const methods on this class // while another thread is calling non-const methods on the class. template class AddressMap { public: typedef void* (*Allocator)(size_t size); typedef void (*DeAllocator)(void* ptr); typedef const void* Key; // Create an AddressMap that uses the specified allocator/deallocator. // The allocator/deallocator should behave like malloc/free. // For instance, the allocator does not need to return initialized memory. AddressMap(Allocator alloc, DeAllocator dealloc); ~AddressMap(); // If the map contains an entry for "key", return it. Else return NULL. inline const Value* Find(Key key) const; inline Value* FindMutable(Key key); // Insert into the map. Any old value associated // with key is forgotten. void Insert(Key key, Value value); // Remove any entry for key in the map. If an entry was found // and removed, stores the associated value in "*removed_value" // and returns true. Else returns false. bool FindAndRemove(Key key, Value* removed_value); // Similar to Find but we assume that keys are addresses of non-overlapping // memory ranges whose sizes are given by size_func. // If the map contains a range into which "key" points // (at its start or inside of it, but not at the end), // return the address of the associated value // and store its key in "*res_key". // Else return NULL. // max_size specifies largest range size possibly in existence now. typedef size_t (*ValueSizeFunc)(const Value& v); const Value* FindInside(ValueSizeFunc size_func, size_t max_size, Key key, Key* res_key); // Iterate over the address map calling 'callback' // for all stored key-value pairs and passing 'arg' to it. // We don't use full Closure/Callback machinery not to add // unnecessary dependencies to this class with low-level uses. template inline void Iterate(void (*callback)(Key, Value*, Type), Type arg) const; private: typedef uintptr_t Number; // The implementation assumes that addresses inserted into the map // will be clustered. We take advantage of this fact by splitting // up the address-space into blocks and using a linked-list entry // for each block. // Size of each block. There is one linked-list for each block, so // do not make the block-size too big. Oterwise, a lot of time // will be spent traversing linked lists. static const int kBlockBits = 7; static const int kBlockSize = 1 << kBlockBits; // Entry kept in per-block linked-list struct Entry { Entry* next; Key key; Value value; }; // We further group a sequence of consecutive blocks into a cluster. // The data for a cluster is represented as a dense array of // linked-lists, one list per contained block. static const int kClusterBits = 13; static const Number kClusterSize = 1 << (kBlockBits + kClusterBits); static const int kClusterBlocks = 1 << kClusterBits; // We use a simple chaining hash-table to represent the clusters. struct Cluster { Cluster* next; // Next cluster in hash table chain Number id; // Cluster ID Entry* blocks[kClusterBlocks]; // Per-block linked-lists }; // Number of hash-table entries. With the block-size/cluster-size // defined above, each cluster covers 1 MB, so an 4K entry // hash-table will give an average hash-chain length of 1 for 4GB of // in-use memory. static const int kHashBits = 12; static const int kHashSize = 1 << 12; // Number of entry objects allocated at a time static const int ALLOC_COUNT = 64; Cluster** hashtable_; // The hash-table Entry* free_; // Free list of unused Entry objects // Multiplicative hash function: // The value "kHashMultiplier" is the bottom 32 bits of // int((sqrt(5)-1)/2 * 2^32) // This is a good multiplier as suggested in CLR, Knuth. The hash // value is taken to be the top "k" bits of the bottom 32 bits // of the muliplied value. static const uint32_t kHashMultiplier = 2654435769u; static int HashInt(Number x) { // Multiply by a constant and take the top bits of the result. const uint32_t m = static_cast(x) * kHashMultiplier; return static_cast(m >> (32 - kHashBits)); } // Find cluster object for specified address. If not found // and "create" is true, create the object. If not found // and "create" is false, return NULL. // // This method is bitwise-const if create is false. Cluster* FindCluster(Number address, bool create) { // Look in hashtable const Number cluster_id = address >> (kBlockBits + kClusterBits); const int h = HashInt(cluster_id); for (Cluster* c = hashtable_[h]; c != NULL; c = c->next) { if (c->id == cluster_id) { return c; } } // Create cluster if necessary if (create) { Cluster* c = New(1); c->id = cluster_id; c->next = hashtable_[h]; hashtable_[h] = c; return c; } return NULL; } // Return the block ID for an address within its cluster static int BlockID(Number address) { return (address >> kBlockBits) & (kClusterBlocks - 1); } //-------------------------------------------------------------- // Memory management -- we keep all objects we allocate linked // together in a singly linked list so we can get rid of them // when we are all done. Furthermore, we allow the client to // pass in custom memory allocator/deallocator routines. //-------------------------------------------------------------- struct Object { Object* next; // The real data starts here }; Allocator alloc_; // The allocator DeAllocator dealloc_; // The deallocator Object* allocated_; // List of allocated objects // Allocates a zeroed array of T with length "num". Also inserts // the allocated block into a linked list so it can be deallocated // when we are all done. template T* New(int num) { void* ptr = (*alloc_)(sizeof(Object) + num*sizeof(T)); memset(ptr, 0, sizeof(Object) + num*sizeof(T)); Object* obj = reinterpret_cast(ptr); obj->next = allocated_; allocated_ = obj; return reinterpret_cast(reinterpret_cast(ptr) + 1); } }; // More implementation details follow: template AddressMap::AddressMap(Allocator alloc, DeAllocator dealloc) : free_(NULL), alloc_(alloc), dealloc_(dealloc), allocated_(NULL) { hashtable_ = New(kHashSize); } template AddressMap::~AddressMap() { // De-allocate all of the objects we allocated for (Object* obj = allocated_; obj != NULL; /**/) { Object* next = obj->next; (*dealloc_)(obj); obj = next; } } template inline const Value* AddressMap::Find(Key key) const { return const_cast(this)->FindMutable(key); } template inline Value* AddressMap::FindMutable(Key key) { const Number num = reinterpret_cast(key); const Cluster* const c = FindCluster(num, false/*do not create*/); if (c != NULL) { for (Entry* e = c->blocks[BlockID(num)]; e != NULL; e = e->next) { if (e->key == key) { return &e->value; } } } return NULL; } template void AddressMap::Insert(Key key, Value value) { const Number num = reinterpret_cast(key); Cluster* const c = FindCluster(num, true/*create*/); // Look in linked-list for this block const int block = BlockID(num); for (Entry* e = c->blocks[block]; e != NULL; e = e->next) { if (e->key == key) { e->value = value; return; } } // Create entry if (free_ == NULL) { // Allocate a new batch of entries and add to free-list Entry* array = New(ALLOC_COUNT); for (int i = 0; i < ALLOC_COUNT-1; i++) { array[i].next = &array[i+1]; } array[ALLOC_COUNT-1].next = free_; free_ = &array[0]; } Entry* e = free_; free_ = e->next; e->key = key; e->value = value; e->next = c->blocks[block]; c->blocks[block] = e; } template bool AddressMap::FindAndRemove(Key key, Value* removed_value) { const Number num = reinterpret_cast(key); Cluster* const c = FindCluster(num, false/*do not create*/); if (c != NULL) { for (Entry** p = &c->blocks[BlockID(num)]; *p != NULL; p = &(*p)->next) { Entry* e = *p; if (e->key == key) { *removed_value = e->value; *p = e->next; // Remove e from linked-list e->next = free_; // Add e to free-list free_ = e; return true; } } } return false; } template const Value* AddressMap::FindInside(ValueSizeFunc size_func, size_t max_size, Key key, Key* res_key) { const Number key_num = reinterpret_cast(key); Number num = key_num; // we'll move this to move back through the clusters while (1) { const Cluster* c = FindCluster(num, false/*do not create*/); if (c != NULL) { while (1) { const int block = BlockID(num); bool had_smaller_key = false; for (const Entry* e = c->blocks[block]; e != NULL; e = e->next) { const Number e_num = reinterpret_cast(e->key); if (e_num <= key_num) { if (e_num == key_num || // to handle 0-sized ranges key_num < e_num + (*size_func)(e->value)) { *res_key = e->key; return &e->value; } had_smaller_key = true; } } if (had_smaller_key) return NULL; // got a range before 'key' // and it did not contain 'key' if (block == 0) break; // try address-wise previous block num |= kBlockSize - 1; // start at the last addr of prev block num -= kBlockSize; if (key_num - num > max_size) return NULL; } } if (num < kClusterSize) return NULL; // first cluster // go to address-wise previous cluster to try num |= kClusterSize - 1; // start at the last block of previous cluster num -= kClusterSize; if (key_num - num > max_size) return NULL; // Having max_size to limit the search is crucial: else // we have to traverse a lot of empty clusters (or blocks). // We can avoid needing max_size if we put clusters into // a search tree, but performance suffers considerably // if we use this approach by using stl::set. } } template template inline void AddressMap::Iterate(void (*callback)(Key, Value*, Type), Type arg) const { // We could optimize this by traversing only non-empty clusters and/or blocks // but it does not speed up heap-checker noticeably. for (int h = 0; h < kHashSize; ++h) { for (const Cluster* c = hashtable_[h]; c != NULL; c = c->next) { for (int b = 0; b < kClusterBlocks; ++b) { for (Entry* e = c->blocks[b]; e != NULL; e = e->next) { callback(e->key, &e->value, arg); } } } } } #endif // BASE_ADDRESSMAP_INL_H_ gperftools-2.4/src/raw_printer.h0000644000000000000000000000654012440704174013736 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // A printf() wrapper that writes into a fixed length buffer. // Useful in low-level code that does not want to use allocating // routines like StringPrintf(). // // The implementation currently uses vsnprintf(). This seems to // be fine for use in many low-level contexts, but we may need to // rethink this decision if we hit a problem with it calling // down into malloc() etc. #ifndef BASE_RAW_PRINTER_H_ #define BASE_RAW_PRINTER_H_ #include #include "base/basictypes.h" namespace base { class RawPrinter { public: // REQUIRES: "length > 0" // Will printf any data added to this into "buf[0,length-1]" and // will arrange to always keep buf[] null-terminated. RawPrinter(char* buf, int length); // Return the number of bytes that have been appended to the string // so far. Does not count any bytes that were dropped due to overflow. int length() const { return (ptr_ - base_); } // Return the number of bytes that can be added to this. int space_left() const { return (limit_ - ptr_); } // Format the supplied arguments according to the "format" string // and append to this. Will silently truncate the output if it does // not fit. void Printf(const char* format, ...) #ifdef HAVE___ATTRIBUTE__ __attribute__ ((__format__ (__printf__, 2, 3))) #endif ; private: // We can write into [ptr_ .. limit_-1]. // *limit_ is also writable, but reserved for a terminating \0 // in case we overflow. // // Invariants: *ptr_ == \0 // Invariants: *limit_ == \0 char* base_; // Initial pointer char* ptr_; // Where should we write next char* limit_; // One past last non-\0 char we can write DISALLOW_COPY_AND_ASSIGN(RawPrinter); }; } #endif // BASE_RAW_PRINTER_H_ gperftools-2.4/src/heap-profile-table.h0000644000000000000000000003467312440704174015052 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2006, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // Maxim Lifantsev (refactoring) // #ifndef BASE_HEAP_PROFILE_TABLE_H_ #define BASE_HEAP_PROFILE_TABLE_H_ #include "addressmap-inl.h" #include "base/basictypes.h" #include "base/logging.h" // for RawFD #include "heap-profile-stats.h" // Table to maintain a heap profile data inside, // i.e. the set of currently active heap memory allocations. // thread-unsafe and non-reentrant code: // each instance object must be used by one thread // at a time w/o self-recursion. // // TODO(maxim): add a unittest for this class. class HeapProfileTable { public: // Extension to be used for heap pforile files. static const char kFileExt[]; // Longest stack trace we record. static const int kMaxStackDepth = 32; // data types ---------------------------- // Profile stats. typedef HeapProfileStats Stats; // Info we can return about an allocation. struct AllocInfo { size_t object_size; // size of the allocation const void* const* call_stack; // call stack that made the allocation call int stack_depth; // depth of call_stack bool live; bool ignored; }; // Info we return about an allocation context. // An allocation context is a unique caller stack trace // of an allocation operation. struct AllocContextInfo : public Stats { int stack_depth; // Depth of stack trace const void* const* call_stack; // Stack trace }; // Memory (de)allocator interface we'll use. typedef void* (*Allocator)(size_t size); typedef void (*DeAllocator)(void* ptr); // interface --------------------------- HeapProfileTable(Allocator alloc, DeAllocator dealloc, bool profile_mmap); ~HeapProfileTable(); // Collect the stack trace for the function that asked to do the // allocation for passing to RecordAlloc() below. // // The stack trace is stored in 'stack'. The stack depth is returned. // // 'skip_count' gives the number of stack frames between this call // and the memory allocation function. static int GetCallerStackTrace(int skip_count, void* stack[kMaxStackDepth]); // Record an allocation at 'ptr' of 'bytes' bytes. 'stack_depth' // and 'call_stack' identifying the function that requested the // allocation. They can be generated using GetCallerStackTrace() above. void RecordAlloc(const void* ptr, size_t bytes, int stack_depth, const void* const call_stack[]); // Record the deallocation of memory at 'ptr'. void RecordFree(const void* ptr); // Return true iff we have recorded an allocation at 'ptr'. // If yes, fill *object_size with the allocation byte size. bool FindAlloc(const void* ptr, size_t* object_size) const; // Same as FindAlloc, but fills all of *info. bool FindAllocDetails(const void* ptr, AllocInfo* info) const; // Return true iff "ptr" points into a recorded allocation // If yes, fill *object_ptr with the actual allocation address // and *object_size with the allocation byte size. // max_size specifies largest currently possible allocation size. bool FindInsideAlloc(const void* ptr, size_t max_size, const void** object_ptr, size_t* object_size) const; // If "ptr" points to a recorded allocation and it's not marked as live // mark it as live and return true. Else return false. // All allocations start as non-live. bool MarkAsLive(const void* ptr); // If "ptr" points to a recorded allocation, mark it as "ignored". // Ignored objects are treated like other objects, except that they // are skipped in heap checking reports. void MarkAsIgnored(const void* ptr); // Return current total (de)allocation statistics. It doesn't contain // mmap'ed regions. const Stats& total() const { return total_; } // Allocation data iteration callback: gets passed object pointer and // fully-filled AllocInfo. typedef void (*AllocIterator)(const void* ptr, const AllocInfo& info); // Iterate over the allocation profile data calling "callback" // for every allocation. void IterateAllocs(AllocIterator callback) const { address_map_->Iterate(MapArgsAllocIterator, callback); } // Allocation context profile data iteration callback typedef void (*AllocContextIterator)(const AllocContextInfo& info); // Iterate over the allocation context profile data calling "callback" // for every allocation context. Allocation contexts are ordered by the // size of allocated space. void IterateOrderedAllocContexts(AllocContextIterator callback) const; // Fill profile data into buffer 'buf' of size 'size' // and return the actual size occupied by the dump in 'buf'. // The profile buckets are dumped in the decreasing order // of currently allocated bytes. // We do not provision for 0-terminating 'buf'. int FillOrderedProfile(char buf[], int size) const; // Cleanup any old profile files matching prefix + ".*" + kFileExt. static void CleanupOldProfiles(const char* prefix); // Return a snapshot of the current contents of *this. // Caller must call ReleaseSnapshot() on result when no longer needed. // The result is only valid while this exists and until // the snapshot is discarded by calling ReleaseSnapshot(). class Snapshot; Snapshot* TakeSnapshot(); // Release a previously taken snapshot. snapshot must not // be used after this call. void ReleaseSnapshot(Snapshot* snapshot); // Return a snapshot of every non-live, non-ignored object in *this. // If "base" is non-NULL, skip any objects present in "base". // As a side-effect, clears the "live" bit on every live object in *this. // Caller must call ReleaseSnapshot() on result when no longer needed. Snapshot* NonLiveSnapshot(Snapshot* base); private: // data types ---------------------------- // Hash table bucket to hold (de)allocation stats // for a given allocation call stack trace. typedef HeapProfileBucket Bucket; // Info stored in the address map struct AllocValue { // Access to the stack-trace bucket Bucket* bucket() const { return reinterpret_cast(bucket_rep & ~uintptr_t(kMask)); } // This also does set_live(false). void set_bucket(Bucket* b) { bucket_rep = reinterpret_cast(b); } size_t bytes; // Number of bytes in this allocation // Access to the allocation liveness flag (for leak checking) bool live() const { return bucket_rep & kLive; } void set_live(bool l) { bucket_rep = (bucket_rep & ~uintptr_t(kLive)) | (l ? kLive : 0); } // Should this allocation be ignored if it looks like a leak? bool ignore() const { return bucket_rep & kIgnore; } void set_ignore(bool r) { bucket_rep = (bucket_rep & ~uintptr_t(kIgnore)) | (r ? kIgnore : 0); } private: // We store a few bits in the bottom bits of bucket_rep. // (Alignment is at least four, so we have at least two bits.) static const int kLive = 1; static const int kIgnore = 2; static const int kMask = kLive | kIgnore; uintptr_t bucket_rep; }; // helper for FindInsideAlloc static size_t AllocValueSize(const AllocValue& v) { return v.bytes; } typedef AddressMap AllocationMap; // Arguments that need to be passed DumpBucketIterator callback below. struct BufferArgs { BufferArgs(char* buf_arg, int buflen_arg, int bufsize_arg) : buf(buf_arg), buflen(buflen_arg), bufsize(bufsize_arg) { } char* buf; int buflen; int bufsize; DISALLOW_COPY_AND_ASSIGN(BufferArgs); }; // Arguments that need to be passed DumpNonLiveIterator callback below. struct DumpArgs { DumpArgs(RawFD fd_arg, Stats* profile_stats_arg) : fd(fd_arg), profile_stats(profile_stats_arg) { } RawFD fd; // file to write to Stats* profile_stats; // stats to update (may be NULL) }; // helpers ---------------------------- // Unparse bucket b and print its portion of profile dump into buf. // We return the amount of space in buf that we use. We start printing // at buf + buflen, and promise not to go beyond buf + bufsize. // We do not provision for 0-terminating 'buf'. // // If profile_stats is non-NULL, we update *profile_stats by // counting bucket b. // // "extra" is appended to the unparsed bucket. Typically it is empty, // but may be set to something like " heapprofile" for the total // bucket to indicate the type of the profile. static int UnparseBucket(const Bucket& b, char* buf, int buflen, int bufsize, const char* extra, Stats* profile_stats); // Get the bucket for the caller stack trace 'key' of depth 'depth' // creating the bucket if needed. Bucket* GetBucket(int depth, const void* const key[]); // Helper for IterateAllocs to do callback signature conversion // from AllocationMap::Iterate to AllocIterator. static void MapArgsAllocIterator(const void* ptr, AllocValue* v, AllocIterator callback) { AllocInfo info; info.object_size = v->bytes; info.call_stack = v->bucket()->stack; info.stack_depth = v->bucket()->depth; info.live = v->live(); info.ignored = v->ignore(); callback(ptr, info); } // Helper to dump a bucket. inline static void DumpBucketIterator(const Bucket* bucket, BufferArgs* args); // Helper for DumpNonLiveProfile to do object-granularity // heap profile dumping. It gets passed to AllocationMap::Iterate. inline static void DumpNonLiveIterator(const void* ptr, AllocValue* v, const DumpArgs& args); // Helper for IterateOrderedAllocContexts and FillOrderedProfile. // Creates a sorted list of Buckets whose length is num_buckets_. // The caller is responsible for deallocating the returned list. Bucket** MakeSortedBucketList() const; // Helper for TakeSnapshot. Saves object to snapshot. static void AddToSnapshot(const void* ptr, AllocValue* v, Snapshot* s); // Arguments passed to AddIfNonLive struct AddNonLiveArgs { Snapshot* dest; Snapshot* base; }; // Helper for NonLiveSnapshot. Adds the object to the destination // snapshot if it is non-live. static void AddIfNonLive(const void* ptr, AllocValue* v, AddNonLiveArgs* arg); // Write contents of "*allocations" as a heap profile to // "file_name". "total" must contain the total of all entries in // "*allocations". static bool WriteProfile(const char* file_name, const Bucket& total, AllocationMap* allocations); // data ---------------------------- // Memory (de)allocator that we use. Allocator alloc_; DeAllocator dealloc_; // Overall profile stats; we use only the Stats part, // but make it a Bucket to pass to UnparseBucket. Bucket total_; bool profile_mmap_; // Bucket hash table for malloc. // We hand-craft one instead of using one of the pre-written // ones because we do not want to use malloc when operating on the table. // It is only few lines of code, so no big deal. Bucket** bucket_table_; int num_buckets_; // Map of all currently allocated objects and mapped regions we know about. AllocationMap* address_map_; DISALLOW_COPY_AND_ASSIGN(HeapProfileTable); }; class HeapProfileTable::Snapshot { public: const Stats& total() const { return total_; } // Report anything in this snapshot as a leak. // May use new/delete for temporary storage. // If should_symbolize is true, will fork (which is not threadsafe) // to turn addresses into symbol names. Set to false for maximum safety. // Also writes a heap profile to "filename" that contains // all of the objects in this snapshot. void ReportLeaks(const char* checker_name, const char* filename, bool should_symbolize); // Report the addresses of all leaked objects. // May use new/delete for temporary storage. void ReportIndividualObjects(); bool Empty() const { return (total_.allocs == 0) && (total_.alloc_size == 0); } private: friend class HeapProfileTable; // Total count/size are stored in a Bucket so we can reuse UnparseBucket Bucket total_; // We share the Buckets managed by the parent table, but have our // own object->bucket map. AllocationMap map_; Snapshot(Allocator alloc, DeAllocator dealloc) : map_(alloc, dealloc) { memset(&total_, 0, sizeof(total_)); } // Callback used to populate a Snapshot object with entries found // in another allocation map. inline void Add(const void* ptr, const AllocValue& v) { map_.Insert(ptr, v); total_.allocs++; total_.alloc_size += v.bytes; } // Helpers for sorting and generating leak reports struct Entry; struct ReportState; static void ReportCallback(const void* ptr, AllocValue* v, ReportState*); static void ReportObject(const void* ptr, AllocValue* v, char*); DISALLOW_COPY_AND_ASSIGN(Snapshot); }; #endif // BASE_HEAP_PROFILE_TABLE_H_ gperftools-2.4/src/heap-profile-stats.h0000644000000000000000000000675112440704174015115 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2013, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // This file defines structs to accumulate memory allocation and deallocation // counts. These structs are commonly used for malloc (in HeapProfileTable) // and mmap (in MemoryRegionMap). // A bucket is data structure for heap profiling to store a pair of a stack // trace and counts of (de)allocation. Buckets are stored in a hash table // which is declared as "HeapProfileBucket**". // // A hash value is computed from a stack trace. Collision in the hash table // is resolved by separate chaining with linked lists. The links in the list // are implemented with the member "HeapProfileBucket* next". // // A structure of a hash table HeapProfileBucket** bucket_table would be like: // bucket_table[0] => NULL // bucket_table[1] => HeapProfileBucket() => HeapProfileBucket() => NULL // ... // bucket_table[i] => HeapProfileBucket() => NULL // ... // bucket_table[n] => HeapProfileBucket() => NULL #ifndef HEAP_PROFILE_STATS_H_ #define HEAP_PROFILE_STATS_H_ struct HeapProfileStats { // Returns true if the two HeapProfileStats are semantically equal. bool Equivalent(const HeapProfileStats& other) const { return allocs - frees == other.allocs - other.frees && alloc_size - free_size == other.alloc_size - other.free_size; } int32 allocs; // Number of allocation calls. int32 frees; // Number of free calls. int64 alloc_size; // Total size of all allocated objects so far. int64 free_size; // Total size of all freed objects so far. }; // Allocation and deallocation statistics per each stack trace. struct HeapProfileBucket : public HeapProfileStats { // Longest stack trace we record. static const int kMaxStackDepth = 32; uintptr_t hash; // Hash value of the stack trace. int depth; // Depth of stack trace. const void** stack; // Stack trace. HeapProfileBucket* next; // Next entry in hash-table. }; #endif // HEAP_PROFILE_STATS_H_ gperftools-2.4/src/heap-checker.cc0000755000000000000000000030351612440704174014065 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // All Rights Reserved. // // Author: Maxim Lifantsev // #include "config.h" #include // for O_RDONLY (we use syscall to do actual reads) #include #include #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_MMAP #include #endif #ifdef HAVE_PTHREAD #include #endif #include #include #include #include #if defined(HAVE_LINUX_PTRACE_H) #include #endif #ifdef HAVE_SYS_SYSCALL_H #include #endif #if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__MINGW32__) #include #include #undef ERROR // windows defines these as macros, which can cause trouble #undef max #undef min #endif #include #include #include #include #include #include #include #include "base/basictypes.h" #include "base/googleinit.h" #include "base/logging.h" #include #include "base/commandlineflags.h" #include "base/elfcore.h" // for i386_regs #include "base/thread_lister.h" #include "heap-profile-table.h" #include "base/low_level_alloc.h" #include "malloc_hook-inl.h" #include #include #include "maybe_threads.h" #include "memory_region_map.h" #include "base/spinlock.h" #include "base/sysinfo.h" #include "base/stl_allocator.h" using std::string; using std::basic_string; using std::pair; using std::map; using std::set; using std::vector; using std::swap; using std::make_pair; using std::min; using std::max; using std::less; using std::char_traits; // If current process is being ptrace()d, 'TracerPid' in /proc/self/status // will be non-zero. static bool IsDebuggerAttached(void) { // only works under linux, probably char buf[256]; // TracerPid comes relatively earlier in status output int fd = open("/proc/self/status", O_RDONLY); if (fd == -1) { return false; // Can't tell for sure. } const int len = read(fd, buf, sizeof(buf)); bool rc = false; if (len > 0) { const char *const kTracerPid = "TracerPid:\t"; buf[len - 1] = '\0'; const char *p = strstr(buf, kTracerPid); if (p != NULL) { rc = (strncmp(p + strlen(kTracerPid), "0\n", 2) != 0); } } close(fd); return rc; } // This is the default if you don't link in -lprofiler extern "C" { ATTRIBUTE_WEAK PERFTOOLS_DLL_DECL bool ProfilingIsEnabledForAllThreads(); bool ProfilingIsEnabledForAllThreads() { return false; } } //---------------------------------------------------------------------- // Flags that control heap-checking //---------------------------------------------------------------------- DEFINE_string(heap_check, EnvToString("HEAPCHECK", ""), "The heap leak checking to be done over the whole executable: " "\"minimal\", \"normal\", \"strict\", " "\"draconian\", \"as-is\", and \"local\" " " or the empty string are the supported choices. " "(See HeapLeakChecker_InternalInitStart for details.)"); DEFINE_bool(heap_check_report, true, "Obsolete"); DEFINE_bool(heap_check_before_constructors, true, "deprecated; pretty much always true now"); DEFINE_bool(heap_check_after_destructors, EnvToBool("HEAP_CHECK_AFTER_DESTRUCTORS", false), "If overall heap check is to end after global destructors " "or right after all REGISTER_HEAPCHECK_CLEANUP's"); DEFINE_bool(heap_check_strict_check, true, "Obsolete"); DEFINE_bool(heap_check_ignore_global_live, EnvToBool("HEAP_CHECK_IGNORE_GLOBAL_LIVE", true), "If overall heap check is to ignore heap objects reachable " "from the global data"); DEFINE_bool(heap_check_identify_leaks, EnvToBool("HEAP_CHECK_IDENTIFY_LEAKS", false), "If heap check should generate the addresses of the leaked " "objects in the memory leak profiles. This may be useful " "in tracking down leaks where only a small fraction of " "objects allocated at the same stack trace are leaked."); DEFINE_bool(heap_check_ignore_thread_live, EnvToBool("HEAP_CHECK_IGNORE_THREAD_LIVE", true), "If set to true, objects reachable from thread stacks " "and registers are not reported as leaks"); DEFINE_bool(heap_check_test_pointer_alignment, EnvToBool("HEAP_CHECK_TEST_POINTER_ALIGNMENT", false), "Set to true to check if the found leak can be due to " "use of unaligned pointers"); // Alignment at which all pointers in memory are supposed to be located; // use 1 if any alignment is ok. // heap_check_test_pointer_alignment flag guides if we try the value of 1. // The larger it can be, the lesser is the chance of missing real leaks. static const size_t kPointerSourceAlignment = sizeof(void*); DEFINE_int32(heap_check_pointer_source_alignment, EnvToInt("HEAP_CHECK_POINTER_SOURCE_ALIGNMENT", kPointerSourceAlignment), "Alignment at which all pointers in memory are supposed to be " "located. Use 1 if any alignment is ok."); // A reasonable default to handle pointers inside of typical class objects: // Too low and we won't be able to traverse pointers to normally-used // nested objects and base parts of multiple-inherited objects. // Too high and it will both slow down leak checking (FindInsideAlloc // in HaveOnHeapLocked will get slower when there are large on-heap objects) // and make it probabilistically more likely to miss leaks // of large-sized objects. static const int64 kHeapCheckMaxPointerOffset = 1024; DEFINE_int64(heap_check_max_pointer_offset, EnvToInt("HEAP_CHECK_MAX_POINTER_OFFSET", kHeapCheckMaxPointerOffset), "Largest pointer offset for which we traverse " "pointers going inside of heap allocated objects. " "Set to -1 to use the actual largest heap object size."); DEFINE_bool(heap_check_run_under_gdb, EnvToBool("HEAP_CHECK_RUN_UNDER_GDB", false), "If false, turns off heap-checking library when running under gdb " "(normally, set to 'true' only when debugging the heap-checker)"); DEFINE_int32(heap_check_delay_seconds, 0, "Number of seconds to delay on-exit heap checking." " If you set this flag," " you may also want to set exit_timeout_seconds in order to" " avoid exit timeouts.\n" "NOTE: This flag is to be used only to help diagnose issues" " where it is suspected that the heap checker is reporting" " false leaks that will disappear if the heap checker delays" " its checks. Report any such issues to the heap-checker" " maintainer(s)."); //---------------------------------------------------------------------- DEFINE_string(heap_profile_pprof, EnvToString("PPROF_PATH", "pprof"), "OBSOLETE; not used"); DEFINE_string(heap_check_dump_directory, EnvToString("HEAP_CHECK_DUMP_DIRECTORY", "/tmp"), "Directory to put heap-checker leak dump information"); //---------------------------------------------------------------------- // HeapLeakChecker global data //---------------------------------------------------------------------- // Global lock for all the global data of this module. static SpinLock heap_checker_lock(SpinLock::LINKER_INITIALIZED); //---------------------------------------------------------------------- // Heap profile prefix for leak checking profiles. // Gets assigned once when leak checking is turned on, then never modified. static const string* profile_name_prefix = NULL; // Whole-program heap leak checker. // Gets assigned once when leak checking is turned on, // then main_heap_checker is never deleted. static HeapLeakChecker* main_heap_checker = NULL; // Whether we will use main_heap_checker to do a check at program exit // automatically. In any case user can ask for more checks on main_heap_checker // via GlobalChecker(). static bool do_main_heap_check = false; // The heap profile we use to collect info about the heap. // This is created in HeapLeakChecker::BeforeConstructorsLocked // together with setting heap_checker_on (below) to true // and registering our new/delete malloc hooks; // similarly all are unset in HeapLeakChecker::TurnItselfOffLocked. static HeapProfileTable* heap_profile = NULL; // If we are doing (or going to do) any kind of heap-checking. static bool heap_checker_on = false; // pid of the process that does whole-program heap leak checking static pid_t heap_checker_pid = 0; // If we did heap profiling during global constructors execution static bool constructor_heap_profiling = false; // RAW_VLOG level we dump key INFO messages at. If you want to turn // off these messages, set the environment variable PERFTOOLS_VERBOSE=-1. static const int heap_checker_info_level = 0; //---------------------------------------------------------------------- // HeapLeakChecker's own memory allocator that is // independent of the normal program allocator. //---------------------------------------------------------------------- // Wrapper of LowLevelAlloc for STL_Allocator and direct use. // We always access this class under held heap_checker_lock, // this allows us to in particular protect the period when threads are stopped // at random spots with TCMalloc_ListAllProcessThreads by heap_checker_lock, // w/o worrying about the lock in LowLevelAlloc::Arena. // We rely on the fact that we use an own arena with an own lock here. class HeapLeakChecker::Allocator { public: static void Init() { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); RAW_DCHECK(arena_ == NULL, ""); arena_ = LowLevelAlloc::NewArena(0, LowLevelAlloc::DefaultArena()); } static void Shutdown() { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); if (!LowLevelAlloc::DeleteArena(arena_) || alloc_count_ != 0) { RAW_LOG(FATAL, "Internal heap checker leak of %d objects", alloc_count_); } } static int alloc_count() { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); return alloc_count_; } static void* Allocate(size_t n) { RAW_DCHECK(arena_ && heap_checker_lock.IsHeld(), ""); void* p = LowLevelAlloc::AllocWithArena(n, arena_); if (p) alloc_count_ += 1; return p; } static void Free(void* p) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); if (p) alloc_count_ -= 1; LowLevelAlloc::Free(p); } static void Free(void* p, size_t /* n */) { Free(p); } // destruct, free, and make *p to be NULL template static void DeleteAndNull(T** p) { (*p)->~T(); Free(*p); *p = NULL; } template static void DeleteAndNullIfNot(T** p) { if (*p != NULL) DeleteAndNull(p); } private: static LowLevelAlloc::Arena* arena_; static int alloc_count_; }; LowLevelAlloc::Arena* HeapLeakChecker::Allocator::arena_ = NULL; int HeapLeakChecker::Allocator::alloc_count_ = 0; //---------------------------------------------------------------------- // HeapLeakChecker live object tracking components //---------------------------------------------------------------------- // Cases of live object placement we distinguish enum ObjectPlacement { MUST_BE_ON_HEAP, // Must point to a live object of the matching size in the // heap_profile map of the heap when we get to it IGNORED_ON_HEAP, // Is a live (ignored) object on heap MAYBE_LIVE, // Is a piece of writable memory from /proc/self/maps IN_GLOBAL_DATA, // Is part of global data region of the executable THREAD_DATA, // Part of a thread stack and a thread descriptor with TLS THREAD_REGISTERS, // Values in registers of some thread }; // Information about an allocated object struct AllocObject { const void* ptr; // the object uintptr_t size; // its size ObjectPlacement place; // where ptr points to AllocObject(const void* p, size_t s, ObjectPlacement l) : ptr(p), size(s), place(l) { } }; // All objects (memory ranges) ignored via HeapLeakChecker::IgnoreObject // Key is the object's address; value is its size. typedef map, STL_Allocator, HeapLeakChecker::Allocator> > IgnoredObjectsMap; static IgnoredObjectsMap* ignored_objects = NULL; // All objects (memory ranges) that we consider to be the sources of pointers // to live (not leaked) objects. // At different times this holds (what can be reached from) global data regions // and the objects we've been told to ignore. // For any AllocObject::ptr "live_objects" is supposed to contain at most one // record at any time. We maintain this by checking with the heap_profile map // of the heap and removing the live heap objects we've handled from it. // This vector is maintained as a stack and the frontier of reachable // live heap objects in our flood traversal of them. typedef vector > LiveObjectsStack; static LiveObjectsStack* live_objects = NULL; // A special string type that uses my allocator typedef basic_string, STL_Allocator > HCL_string; // A placeholder to fill-in the starting values for live_objects // for each library so we can keep the library-name association for logging. typedef map, STL_Allocator, HeapLeakChecker::Allocator> > LibraryLiveObjectsStacks; static LibraryLiveObjectsStacks* library_live_objects = NULL; // Value stored in the map of disabled address ranges; // its key is the end of the address range. // We'll ignore allocations with a return address in a disabled range // if the address occurs at 'max_depth' or less in the stack trace. struct HeapLeakChecker::RangeValue { uintptr_t start_address; // the start of the range int max_depth; // the maximal stack depth to disable at }; typedef map, STL_Allocator, HeapLeakChecker::Allocator> > DisabledRangeMap; // The disabled program counter address ranges for profile dumping // that are registered with HeapLeakChecker::DisableChecksFromToLocked. static DisabledRangeMap* disabled_ranges = NULL; // Set of stack tops. // These are used to consider live only appropriate chunks of the memory areas // that are used for stacks (and maybe thread-specific data as well) // so that we do not treat pointers from outdated stack frames as live. typedef set, STL_Allocator > StackTopSet; static StackTopSet* stack_tops = NULL; // A map of ranges of code addresses for the system libraries // that can mmap/mremap/sbrk-allocate memory regions for stacks // and thread-local storage that we want to consider as live global data. // Maps from the end address to the start address. typedef map, STL_Allocator, HeapLeakChecker::Allocator> > GlobalRegionCallerRangeMap; static GlobalRegionCallerRangeMap* global_region_caller_ranges = NULL; // TODO(maxim): make our big data structs into own modules // Disabler is implemented by keeping track of a per-thread count // of active Disabler objects. Any objects allocated while the // count > 0 are not reported. #ifdef HAVE_TLS static __thread int thread_disable_counter // The "inital exec" model is faster than the default TLS model, at // the cost you can't dlopen this library. But dlopen on heap-checker // doesn't work anyway -- it must run before main -- so this is a good // trade-off. # ifdef HAVE___ATTRIBUTE__ __attribute__ ((tls_model ("initial-exec"))) # endif ; inline int get_thread_disable_counter() { return thread_disable_counter; } inline void set_thread_disable_counter(int value) { thread_disable_counter = value; } #else // #ifdef HAVE_TLS static pthread_key_t thread_disable_counter_key; static int main_thread_counter; // storage for use before main() static bool use_main_thread_counter = true; // TODO(csilvers): this is called from NewHook, in the middle of malloc(). // If perftools_pthread_getspecific calls malloc, that will lead to an // infinite loop. I don't know how to fix that, so I hope it never happens! inline int get_thread_disable_counter() { if (use_main_thread_counter) // means we're running really early return main_thread_counter; void* p = perftools_pthread_getspecific(thread_disable_counter_key); return (intptr_t)p; // kinda evil: store the counter directly in the void* } inline void set_thread_disable_counter(int value) { if (use_main_thread_counter) { // means we're running really early main_thread_counter = value; return; } intptr_t pointer_sized_value = value; // kinda evil: store the counter directly in the void* void* p = (void*)pointer_sized_value; // NOTE: this may call malloc, which will call NewHook which will call // get_thread_disable_counter() which will call pthread_getspecific(). I // don't know if anything bad can happen if we call getspecific() in the // middle of a setspecific() call. It seems to work ok in practice... perftools_pthread_setspecific(thread_disable_counter_key, p); } // The idea here is that this initializer will run pretty late: after // pthreads have been totally set up. At this point we can call // pthreads routines, so we set those up. class InitThreadDisableCounter { public: InitThreadDisableCounter() { perftools_pthread_key_create(&thread_disable_counter_key, NULL); // Set up the main thread's value, which we have a special variable for. void* p = (void*)main_thread_counter; // store the counter directly perftools_pthread_setspecific(thread_disable_counter_key, p); use_main_thread_counter = false; } }; InitThreadDisableCounter init_thread_disable_counter; #endif // #ifdef HAVE_TLS HeapLeakChecker::Disabler::Disabler() { // It is faster to unconditionally increment the thread-local // counter than to check whether or not heap-checking is on // in a thread-safe manner. int counter = get_thread_disable_counter(); set_thread_disable_counter(counter + 1); RAW_VLOG(10, "Increasing thread disable counter to %d", counter + 1); } HeapLeakChecker::Disabler::~Disabler() { int counter = get_thread_disable_counter(); RAW_DCHECK(counter > 0, ""); if (counter > 0) { set_thread_disable_counter(counter - 1); RAW_VLOG(10, "Decreasing thread disable counter to %d", counter); } else { RAW_VLOG(0, "Thread disable counter underflow : %d", counter); } } //---------------------------------------------------------------------- // The size of the largest heap object allocated so far. static size_t max_heap_object_size = 0; // The possible range of addresses that can point // into one of the elements of heap_objects. static uintptr_t min_heap_address = uintptr_t(-1LL); static uintptr_t max_heap_address = 0; //---------------------------------------------------------------------- // Simple casting helpers for uintptr_t and void*: template inline static const void* AsPtr(T addr) { return reinterpret_cast(addr); } inline static uintptr_t AsInt(const void* ptr) { return reinterpret_cast(ptr); } //---------------------------------------------------------------------- // We've seen reports that strstr causes heap-checker crashes in some // libc's (?): // http://code.google.com/p/gperftools/issues/detail?id=263 // It's simple enough to use our own. This is not in time-critical code. static const char* hc_strstr(const char* s1, const char* s2) { const size_t len = strlen(s2); RAW_CHECK(len > 0, "Unexpected empty string passed to strstr()"); for (const char* p = strchr(s1, *s2); p != NULL; p = strchr(p+1, *s2)) { if (strncmp(p, s2, len) == 0) { return p; } } return NULL; } //---------------------------------------------------------------------- // Our hooks for MallocHook static void NewHook(const void* ptr, size_t size) { if (ptr != NULL) { const int counter = get_thread_disable_counter(); const bool ignore = (counter > 0); RAW_VLOG(16, "Recording Alloc: %p of %" PRIuS "; %d", ptr, size, int(counter)); // Fetch the caller's stack trace before acquiring heap_checker_lock. void* stack[HeapProfileTable::kMaxStackDepth]; int depth = HeapProfileTable::GetCallerStackTrace(0, stack); { SpinLockHolder l(&heap_checker_lock); if (size > max_heap_object_size) max_heap_object_size = size; uintptr_t addr = AsInt(ptr); if (addr < min_heap_address) min_heap_address = addr; addr += size; if (addr > max_heap_address) max_heap_address = addr; if (heap_checker_on) { heap_profile->RecordAlloc(ptr, size, depth, stack); if (ignore) { heap_profile->MarkAsIgnored(ptr); } } } RAW_VLOG(17, "Alloc Recorded: %p of %" PRIuS "", ptr, size); } } static void DeleteHook(const void* ptr) { if (ptr != NULL) { RAW_VLOG(16, "Recording Free %p", ptr); { SpinLockHolder l(&heap_checker_lock); if (heap_checker_on) heap_profile->RecordFree(ptr); } RAW_VLOG(17, "Free Recorded: %p", ptr); } } //---------------------------------------------------------------------- enum StackDirection { GROWS_TOWARDS_HIGH_ADDRESSES, GROWS_TOWARDS_LOW_ADDRESSES, UNKNOWN_DIRECTION }; // Determine which way the stack grows: static StackDirection ATTRIBUTE_NOINLINE GetStackDirection( const uintptr_t *const ptr) { uintptr_t x; if (&x < ptr) return GROWS_TOWARDS_LOW_ADDRESSES; if (ptr < &x) return GROWS_TOWARDS_HIGH_ADDRESSES; RAW_CHECK(0, ""); // Couldn't determine the stack direction. return UNKNOWN_DIRECTION; } // Direction of stack growth (will initialize via GetStackDirection()) static StackDirection stack_direction = UNKNOWN_DIRECTION; // This routine is called for every thread stack we know about to register it. static void RegisterStackLocked(const void* top_ptr) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); RAW_DCHECK(MemoryRegionMap::LockIsHeld(), ""); RAW_VLOG(10, "Thread stack at %p", top_ptr); uintptr_t top = AsInt(top_ptr); stack_tops->insert(top); // add for later use // make sure stack_direction is initialized if (stack_direction == UNKNOWN_DIRECTION) { stack_direction = GetStackDirection(&top); } // Find memory region with this stack MemoryRegionMap::Region region; if (MemoryRegionMap::FindAndMarkStackRegion(top, ®ion)) { // Make the proper portion of the stack live: if (stack_direction == GROWS_TOWARDS_LOW_ADDRESSES) { RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes", top_ptr, region.end_addr - top); live_objects->push_back(AllocObject(top_ptr, region.end_addr - top, THREAD_DATA)); } else { // GROWS_TOWARDS_HIGH_ADDRESSES RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes", AsPtr(region.start_addr), top - region.start_addr); live_objects->push_back(AllocObject(AsPtr(region.start_addr), top - region.start_addr, THREAD_DATA)); } // not in MemoryRegionMap, look in library_live_objects: } else if (FLAGS_heap_check_ignore_global_live) { for (LibraryLiveObjectsStacks::iterator lib = library_live_objects->begin(); lib != library_live_objects->end(); ++lib) { for (LiveObjectsStack::iterator span = lib->second.begin(); span != lib->second.end(); ++span) { uintptr_t start = AsInt(span->ptr); uintptr_t end = start + span->size; if (start <= top && top < end) { RAW_VLOG(11, "Stack at %p is inside /proc/self/maps chunk %p..%p", top_ptr, AsPtr(start), AsPtr(end)); // Shrink start..end region by chopping away the memory regions in // MemoryRegionMap that land in it to undo merging of regions // in /proc/self/maps, so that we correctly identify what portion // of start..end is actually the stack region. uintptr_t stack_start = start; uintptr_t stack_end = end; // can optimize-away this loop, but it does not run often RAW_DCHECK(MemoryRegionMap::LockIsHeld(), ""); for (MemoryRegionMap::RegionIterator r = MemoryRegionMap::BeginRegionLocked(); r != MemoryRegionMap::EndRegionLocked(); ++r) { if (top < r->start_addr && r->start_addr < stack_end) { stack_end = r->start_addr; } if (stack_start < r->end_addr && r->end_addr <= top) { stack_start = r->end_addr; } } if (stack_start != start || stack_end != end) { RAW_VLOG(11, "Stack at %p is actually inside memory chunk %p..%p", top_ptr, AsPtr(stack_start), AsPtr(stack_end)); } // Make the proper portion of the stack live: if (stack_direction == GROWS_TOWARDS_LOW_ADDRESSES) { RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes", top_ptr, stack_end - top); live_objects->push_back( AllocObject(top_ptr, stack_end - top, THREAD_DATA)); } else { // GROWS_TOWARDS_HIGH_ADDRESSES RAW_VLOG(11, "Live stack at %p of %" PRIuPTR " bytes", AsPtr(stack_start), top - stack_start); live_objects->push_back( AllocObject(AsPtr(stack_start), top - stack_start, THREAD_DATA)); } lib->second.erase(span); // kill the rest of the region // Put the non-stack part(s) of the region back: if (stack_start != start) { lib->second.push_back(AllocObject(AsPtr(start), stack_start - start, MAYBE_LIVE)); } if (stack_end != end) { lib->second.push_back(AllocObject(AsPtr(stack_end), end - stack_end, MAYBE_LIVE)); } return; } } } RAW_LOG(ERROR, "Memory region for stack at %p not found. " "Will likely report false leak positives.", top_ptr); } } // Iterator for heap allocation map data to make ignored objects "live" // (i.e., treated as roots for the mark-and-sweep phase) static void MakeIgnoredObjectsLiveCallbackLocked( const void* ptr, const HeapProfileTable::AllocInfo& info) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); if (info.ignored) { live_objects->push_back(AllocObject(ptr, info.object_size, MUST_BE_ON_HEAP)); } } // Iterator for heap allocation map data to make objects allocated from // disabled regions of code to be live. static void MakeDisabledLiveCallbackLocked( const void* ptr, const HeapProfileTable::AllocInfo& info) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); bool stack_disable = false; bool range_disable = false; for (int depth = 0; depth < info.stack_depth; depth++) { uintptr_t addr = AsInt(info.call_stack[depth]); if (disabled_ranges) { DisabledRangeMap::const_iterator iter = disabled_ranges->upper_bound(addr); if (iter != disabled_ranges->end()) { RAW_DCHECK(iter->first > addr, ""); if (iter->second.start_address < addr && iter->second.max_depth > depth) { range_disable = true; // in range; dropping break; } } } } if (stack_disable || range_disable) { uintptr_t start_address = AsInt(ptr); uintptr_t end_address = start_address + info.object_size; StackTopSet::const_iterator iter = stack_tops->lower_bound(start_address); if (iter != stack_tops->end()) { RAW_DCHECK(*iter >= start_address, ""); if (*iter < end_address) { // We do not disable (treat as live) whole allocated regions // if they are used to hold thread call stacks // (i.e. when we find a stack inside). // The reason is that we'll treat as live the currently used // stack portions anyway (see RegisterStackLocked), // and the rest of the region where the stack lives can well // contain outdated stack variables which are not live anymore, // hence should not be treated as such. RAW_VLOG(11, "Not %s-disabling %" PRIuS " bytes at %p" ": have stack inside: %p", (stack_disable ? "stack" : "range"), info.object_size, ptr, AsPtr(*iter)); return; } } RAW_VLOG(11, "%s-disabling %" PRIuS " bytes at %p", (stack_disable ? "Stack" : "Range"), info.object_size, ptr); live_objects->push_back(AllocObject(ptr, info.object_size, MUST_BE_ON_HEAP)); } } static const char kUnnamedProcSelfMapEntry[] = "UNNAMED"; // This function takes some fields from a /proc/self/maps line: // // start_address start address of a memory region. // end_address end address of a memory region // permissions rwx + private/shared bit // filename filename of the mapped file // // If the region is not writeable, then it cannot have any heap // pointers in it, otherwise we record it as a candidate live region // to get filtered later. static void RecordGlobalDataLocked(uintptr_t start_address, uintptr_t end_address, const char* permissions, const char* filename) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); // Ignore non-writeable regions. if (strchr(permissions, 'w') == NULL) return; if (filename == NULL || *filename == '\0') { filename = kUnnamedProcSelfMapEntry; } RAW_VLOG(11, "Looking into %s: 0x%" PRIxPTR "..0x%" PRIxPTR, filename, start_address, end_address); (*library_live_objects)[filename]. push_back(AllocObject(AsPtr(start_address), end_address - start_address, MAYBE_LIVE)); } // See if 'library' from /proc/self/maps has base name 'library_base' // i.e. contains it and has '.' or '-' after it. static bool IsLibraryNamed(const char* library, const char* library_base) { const char* p = hc_strstr(library, library_base); size_t sz = strlen(library_base); return p != NULL && (p[sz] == '.' || p[sz] == '-'); } // static void HeapLeakChecker::DisableLibraryAllocsLocked(const char* library, uintptr_t start_address, uintptr_t end_address) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); int depth = 0; // TODO(maxim): maybe this should be extended to also use objdump // and pick the text portion of the library more precisely. if (IsLibraryNamed(library, "/libpthread") || // libpthread has a lot of small "system" leaks we don't care about. // In particular it allocates memory to store data supplied via // pthread_setspecific (which can be the only pointer to a heap object). IsLibraryNamed(library, "/libdl") || // library loaders leak some "system" heap that we don't care about IsLibraryNamed(library, "/libcrypto") || // Sometimes libcrypto of OpenSSH is compiled with -fomit-frame-pointer // (any library can be, of course, but this one often is because speed // is so important for making crypto usable). We ignore all its // allocations because we can't see the call stacks. We'd prefer // to ignore allocations done in files/symbols that match // "default_malloc_ex|default_realloc_ex" // but that doesn't work when the end-result binary is stripped. IsLibraryNamed(library, "/libjvm") || // JVM has a lot of leaks we don't care about. IsLibraryNamed(library, "/libzip") // The JVM leaks java.util.zip.Inflater after loading classes. ) { depth = 1; // only disable allocation calls directly from the library code } else if (IsLibraryNamed(library, "/ld") // library loader leaks some "system" heap // (e.g. thread-local storage) that we don't care about ) { depth = 2; // disable allocation calls directly from the library code // and at depth 2 from it. // We need depth 2 here solely because of a libc bug that // forces us to jump through __memalign_hook and MemalignOverride hoops // in tcmalloc.cc. // Those buggy __libc_memalign() calls are in ld-linux.so and happen for // thread-local storage allocations that we want to ignore here. // We go with the depth-2 hack as a workaround for this libc bug: // otherwise we'd need to extend MallocHook interface // so that correct stack depth adjustment can be propagated from // the exceptional case of MemalignOverride. // Using depth 2 here should not mask real leaks because ld-linux.so // does not call user code. } if (depth) { RAW_VLOG(10, "Disabling allocations from %s at depth %d:", library, depth); DisableChecksFromToLocked(AsPtr(start_address), AsPtr(end_address), depth); if (IsLibraryNamed(library, "/libpthread") || IsLibraryNamed(library, "/libdl") || IsLibraryNamed(library, "/ld")) { RAW_VLOG(10, "Global memory regions made by %s will be live data", library); if (global_region_caller_ranges == NULL) { global_region_caller_ranges = new(Allocator::Allocate(sizeof(GlobalRegionCallerRangeMap))) GlobalRegionCallerRangeMap; } global_region_caller_ranges ->insert(make_pair(end_address, start_address)); } } } // static HeapLeakChecker::ProcMapsResult HeapLeakChecker::UseProcMapsLocked( ProcMapsTask proc_maps_task) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); // Need to provide own scratch memory to ProcMapsIterator: ProcMapsIterator::Buffer buffer; ProcMapsIterator it(0, &buffer); if (!it.Valid()) { int errsv = errno; RAW_LOG(ERROR, "Could not open /proc/self/maps: errno=%d. " "Libraries will not be handled correctly.", errsv); return CANT_OPEN_PROC_MAPS; } uint64 start_address, end_address, file_offset; int64 inode; char *permissions, *filename; bool saw_shared_lib = false; bool saw_nonzero_inode = false; bool saw_shared_lib_with_nonzero_inode = false; while (it.Next(&start_address, &end_address, &permissions, &file_offset, &inode, &filename)) { if (start_address >= end_address) { // Warn if a line we can be interested in is ill-formed: if (inode != 0) { RAW_LOG(ERROR, "Errors reading /proc/self/maps. " "Some global memory regions will not " "be handled correctly."); } // Silently skip other ill-formed lines: some are possible // probably due to the interplay of how /proc/self/maps is updated // while we read it in chunks in ProcMapsIterator and // do things in this loop. continue; } // Determine if any shared libraries are present (this is the same // list of extensions as is found in pprof). We want to ignore // 'fake' libraries with inode 0 when determining. However, some // systems don't share inodes via /proc, so we turn off this check // if we don't see any evidence that we're getting inode info. if (inode != 0) { saw_nonzero_inode = true; } if ((hc_strstr(filename, "lib") && hc_strstr(filename, ".so")) || hc_strstr(filename, ".dll") || // not all .dylib filenames start with lib. .dylib is big enough // that we are unlikely to get false matches just checking that. hc_strstr(filename, ".dylib") || hc_strstr(filename, ".bundle")) { saw_shared_lib = true; if (inode != 0) { saw_shared_lib_with_nonzero_inode = true; } } switch (proc_maps_task) { case DISABLE_LIBRARY_ALLOCS: // All lines starting like // "401dc000-4030f000 r??p 00132000 03:01 13991972 lib/bin" // identify a data and code sections of a shared library or our binary if (inode != 0 && strncmp(permissions, "r-xp", 4) == 0) { DisableLibraryAllocsLocked(filename, start_address, end_address); } break; case RECORD_GLOBAL_DATA: RecordGlobalDataLocked(start_address, end_address, permissions, filename); break; default: RAW_CHECK(0, ""); } } // If /proc/self/maps is reporting inodes properly (we saw a // non-zero inode), then we only say we saw a shared lib if we saw a // 'real' one, with a non-zero inode. if (saw_nonzero_inode) { saw_shared_lib = saw_shared_lib_with_nonzero_inode; } if (!saw_shared_lib) { RAW_LOG(ERROR, "No shared libs detected. Will likely report false leak " "positives for statically linked executables."); return NO_SHARED_LIBS_IN_PROC_MAPS; } return PROC_MAPS_USED; } // Total number and size of live objects dropped from the profile; // (re)initialized in IgnoreAllLiveObjectsLocked. static int64 live_objects_total; static int64 live_bytes_total; // pid of the thread that is doing the current leak check // (protected by our lock; IgnoreAllLiveObjectsLocked sets it) static pid_t self_thread_pid = 0; // Status of our thread listing callback execution // (protected by our lock; used from within IgnoreAllLiveObjectsLocked) static enum { CALLBACK_NOT_STARTED, CALLBACK_STARTED, CALLBACK_COMPLETED, } thread_listing_status = CALLBACK_NOT_STARTED; // Ideally to avoid deadlocks this function should not result in any libc // or other function calls that might need to lock a mutex: // It is called when all threads of a process are stopped // at arbitrary points thus potentially holding those locks. // // In practice we are calling some simple i/o and sprintf-type library functions // for logging messages, but use only our own LowLevelAlloc::Arena allocator. // // This is known to be buggy: the library i/o function calls are able to cause // deadlocks when they request a lock that a stopped thread happens to hold. // This issue as far as we know have so far not resulted in any deadlocks // in practice, so for now we are taking our chance that the deadlocks // have insignificant frequency. // // If such deadlocks become a problem we should make the i/o calls // into appropriately direct system calls (or eliminate them), // in particular write() is not safe and vsnprintf() is potentially dangerous // due to reliance on locale functions (these are called through RAW_LOG // and in other ways). // #if defined(HAVE_LINUX_PTRACE_H) && defined(HAVE_SYS_SYSCALL_H) && defined(DUMPER) # if (defined(__i386__) || defined(__x86_64)) # define THREAD_REGS i386_regs # elif defined(__PPC__) # define THREAD_REGS ppc_regs # endif #endif /*static*/ int HeapLeakChecker::IgnoreLiveThreadsLocked(void* parameter, int num_threads, pid_t* thread_pids, va_list /*ap*/) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); thread_listing_status = CALLBACK_STARTED; RAW_VLOG(11, "Found %d threads (from pid %d)", num_threads, getpid()); if (FLAGS_heap_check_ignore_global_live) { UseProcMapsLocked(RECORD_GLOBAL_DATA); } // We put the registers from other threads here // to make pointers stored in them live. vector > thread_registers; int failures = 0; for (int i = 0; i < num_threads; ++i) { // the leak checking thread itself is handled // specially via self_thread_stack, not here: if (thread_pids[i] == self_thread_pid) continue; RAW_VLOG(11, "Handling thread with pid %d", thread_pids[i]); #ifdef THREAD_REGS THREAD_REGS thread_regs; #define sys_ptrace(r, p, a, d) syscall(SYS_ptrace, (r), (p), (a), (d)) // We use sys_ptrace to avoid thread locking // because this is called from TCMalloc_ListAllProcessThreads // when all but this thread are suspended. if (sys_ptrace(PTRACE_GETREGS, thread_pids[i], NULL, &thread_regs) == 0) { // Need to use SP to get all the data from the very last stack frame: COMPILE_ASSERT(sizeof(thread_regs.SP) == sizeof(void*), SP_register_does_not_look_like_a_pointer); RegisterStackLocked(reinterpret_cast(thread_regs.SP)); // Make registers live (just in case PTRACE_ATTACH resulted in some // register pointers still being in the registers and not on the stack): for (void** p = reinterpret_cast(&thread_regs); p < reinterpret_cast(&thread_regs + 1); ++p) { RAW_VLOG(12, "Thread register %p", *p); thread_registers.push_back(*p); } } else { failures += 1; } #else failures += 1; #endif } // Use all the collected thread (stack) liveness sources: IgnoreLiveObjectsLocked("threads stack data", ""); if (thread_registers.size()) { // Make thread registers be live heap data sources. // we rely here on the fact that vector is in one memory chunk: RAW_VLOG(11, "Live registers at %p of %" PRIuS " bytes", &thread_registers[0], thread_registers.size() * sizeof(void*)); live_objects->push_back(AllocObject(&thread_registers[0], thread_registers.size() * sizeof(void*), THREAD_REGISTERS)); IgnoreLiveObjectsLocked("threads register data", ""); } // Do all other liveness walking while all threads are stopped: IgnoreNonThreadLiveObjectsLocked(); // Can now resume the threads: TCMalloc_ResumeAllProcessThreads(num_threads, thread_pids); thread_listing_status = CALLBACK_COMPLETED; return failures; } // Stack top of the thread that is doing the current leak check // (protected by our lock; IgnoreAllLiveObjectsLocked sets it) static const void* self_thread_stack_top; // static void HeapLeakChecker::IgnoreNonThreadLiveObjectsLocked() { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); RAW_DCHECK(MemoryRegionMap::LockIsHeld(), ""); RAW_VLOG(11, "Handling self thread with pid %d", self_thread_pid); // Register our own stack: // Important that all stack ranges (including the one here) // are known before we start looking at them // in MakeDisabledLiveCallbackLocked: RegisterStackLocked(self_thread_stack_top); IgnoreLiveObjectsLocked("stack data", ""); // Make objects we were told to ignore live: if (ignored_objects) { for (IgnoredObjectsMap::const_iterator object = ignored_objects->begin(); object != ignored_objects->end(); ++object) { const void* ptr = AsPtr(object->first); RAW_VLOG(11, "Ignored live object at %p of %" PRIuS " bytes", ptr, object->second); live_objects-> push_back(AllocObject(ptr, object->second, MUST_BE_ON_HEAP)); // we do this liveness check for ignored_objects before doing any // live heap walking to make sure it does not fail needlessly: size_t object_size; if (!(heap_profile->FindAlloc(ptr, &object_size) && object->second == object_size)) { RAW_LOG(FATAL, "Object at %p of %" PRIuS " bytes from an" " IgnoreObject() has disappeared", ptr, object->second); } } IgnoreLiveObjectsLocked("ignored objects", ""); } // Treat objects that were allocated when a Disabler was live as // roots. I.e., if X was allocated while a Disabler was active, // and Y is reachable from X, arrange that neither X nor Y are // treated as leaks. heap_profile->IterateAllocs(MakeIgnoredObjectsLiveCallbackLocked); IgnoreLiveObjectsLocked("disabled objects", ""); // Make code-address-disabled objects live and ignored: // This in particular makes all thread-specific data live // because the basic data structure to hold pointers to thread-specific data // is allocated from libpthreads and we have range-disabled that // library code with UseProcMapsLocked(DISABLE_LIBRARY_ALLOCS); // so now we declare all thread-specific data reachable from there as live. heap_profile->IterateAllocs(MakeDisabledLiveCallbackLocked); IgnoreLiveObjectsLocked("disabled code", ""); // Actually make global data live: if (FLAGS_heap_check_ignore_global_live) { bool have_null_region_callers = false; for (LibraryLiveObjectsStacks::iterator l = library_live_objects->begin(); l != library_live_objects->end(); ++l) { RAW_CHECK(live_objects->empty(), ""); // Process library_live_objects in l->second // filtering them by MemoryRegionMap: // It's safe to iterate over MemoryRegionMap // w/o locks here as we are inside MemoryRegionMap::Lock(): RAW_DCHECK(MemoryRegionMap::LockIsHeld(), ""); // The only change to MemoryRegionMap possible in this loop // is region addition as a result of allocating more memory // for live_objects. This won't invalidate the RegionIterator // or the intent of the loop. // --see the comment by MemoryRegionMap::BeginRegionLocked(). for (MemoryRegionMap::RegionIterator region = MemoryRegionMap::BeginRegionLocked(); region != MemoryRegionMap::EndRegionLocked(); ++region) { // "region" from MemoryRegionMap is to be subtracted from // (tentatively live) regions in l->second // if it has a stack inside or it was allocated by // a non-special caller (not one covered by a range // in global_region_caller_ranges). // This will in particular exclude all memory chunks used // by the heap itself as well as what's been allocated with // any allocator on top of mmap. bool subtract = true; if (!region->is_stack && global_region_caller_ranges) { if (region->caller() == static_cast(NULL)) { have_null_region_callers = true; } else { GlobalRegionCallerRangeMap::const_iterator iter = global_region_caller_ranges->upper_bound(region->caller()); if (iter != global_region_caller_ranges->end()) { RAW_DCHECK(iter->first > region->caller(), ""); if (iter->second < region->caller()) { // in special region subtract = false; } } } } if (subtract) { // The loop puts the result of filtering l->second into live_objects: for (LiveObjectsStack::const_iterator i = l->second.begin(); i != l->second.end(); ++i) { // subtract *region from *i uintptr_t start = AsInt(i->ptr); uintptr_t end = start + i->size; if (region->start_addr <= start && end <= region->end_addr) { // full deletion due to subsumption } else if (start < region->start_addr && region->end_addr < end) { // cutting-out split live_objects->push_back(AllocObject(i->ptr, region->start_addr - start, IN_GLOBAL_DATA)); live_objects->push_back(AllocObject(AsPtr(region->end_addr), end - region->end_addr, IN_GLOBAL_DATA)); } else if (region->end_addr > start && region->start_addr <= start) { // cut from start live_objects->push_back(AllocObject(AsPtr(region->end_addr), end - region->end_addr, IN_GLOBAL_DATA)); } else if (region->start_addr > start && region->start_addr < end) { // cut from end live_objects->push_back(AllocObject(i->ptr, region->start_addr - start, IN_GLOBAL_DATA)); } else { // pass: no intersection live_objects->push_back(AllocObject(i->ptr, i->size, IN_GLOBAL_DATA)); } } // Move live_objects back into l->second // for filtering by the next region. live_objects->swap(l->second); live_objects->clear(); } } // Now get and use live_objects from the final version of l->second: if (VLOG_IS_ON(11)) { for (LiveObjectsStack::const_iterator i = l->second.begin(); i != l->second.end(); ++i) { RAW_VLOG(11, "Library live region at %p of %" PRIuPTR " bytes", i->ptr, i->size); } } live_objects->swap(l->second); IgnoreLiveObjectsLocked("in globals of\n ", l->first.c_str()); } if (have_null_region_callers) { RAW_LOG(ERROR, "Have memory regions w/o callers: " "might report false leaks"); } Allocator::DeleteAndNull(&library_live_objects); } } // Callback for TCMalloc_ListAllProcessThreads in IgnoreAllLiveObjectsLocked below // to test/verify that we have just the one main thread, in which case // we can do everything in that main thread, // so that CPU profiler can collect all its samples. // Returns the number of threads in the process. static int IsOneThread(void* parameter, int num_threads, pid_t* thread_pids, va_list ap) { if (num_threads != 1) { RAW_LOG(WARNING, "Have threads: Won't CPU-profile the bulk of leak " "checking work happening in IgnoreLiveThreadsLocked!"); } TCMalloc_ResumeAllProcessThreads(num_threads, thread_pids); return num_threads; } // Dummy for IgnoreAllLiveObjectsLocked below. // Making it global helps with compiler warnings. static va_list dummy_ap; // static void HeapLeakChecker::IgnoreAllLiveObjectsLocked(const void* self_stack_top) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); RAW_CHECK(live_objects == NULL, ""); live_objects = new(Allocator::Allocate(sizeof(LiveObjectsStack))) LiveObjectsStack; stack_tops = new(Allocator::Allocate(sizeof(StackTopSet))) StackTopSet; // reset the counts live_objects_total = 0; live_bytes_total = 0; // Reduce max_heap_object_size to FLAGS_heap_check_max_pointer_offset // for the time of leak check. // FLAGS_heap_check_max_pointer_offset caps max_heap_object_size // to manage reasonably low chances of random bytes // appearing to be pointing into large actually leaked heap objects. const size_t old_max_heap_object_size = max_heap_object_size; max_heap_object_size = ( FLAGS_heap_check_max_pointer_offset != -1 ? min(size_t(FLAGS_heap_check_max_pointer_offset), max_heap_object_size) : max_heap_object_size); // Record global data as live: if (FLAGS_heap_check_ignore_global_live) { library_live_objects = new(Allocator::Allocate(sizeof(LibraryLiveObjectsStacks))) LibraryLiveObjectsStacks; } // Ignore all thread stacks: thread_listing_status = CALLBACK_NOT_STARTED; bool need_to_ignore_non_thread_objects = true; self_thread_pid = getpid(); self_thread_stack_top = self_stack_top; if (FLAGS_heap_check_ignore_thread_live) { // In case we are doing CPU profiling we'd like to do all the work // in the main thread, not in the special thread created by // TCMalloc_ListAllProcessThreads, so that CPU profiler can // collect all its samples. The machinery of // TCMalloc_ListAllProcessThreads conflicts with the CPU profiler // by also relying on signals and ::sigaction. We can do this // (run everything in the main thread) safely only if there's just // the main thread itself in our process. This variable reflects // these two conditions: bool want_and_can_run_in_main_thread = ProfilingIsEnabledForAllThreads() && TCMalloc_ListAllProcessThreads(NULL, IsOneThread) == 1; // When the normal path of TCMalloc_ListAllProcessThreads below is taken, // we fully suspend the threads right here before any liveness checking // and keep them suspended for the whole time of liveness checking // inside of the IgnoreLiveThreadsLocked callback. // (The threads can't (de)allocate due to lock on the delete hook but // if not suspended they could still mess with the pointer // graph while we walk it). int r = want_and_can_run_in_main_thread ? IgnoreLiveThreadsLocked(NULL, 1, &self_thread_pid, dummy_ap) : TCMalloc_ListAllProcessThreads(NULL, IgnoreLiveThreadsLocked); need_to_ignore_non_thread_objects = r < 0; if (r < 0) { RAW_LOG(WARNING, "Thread finding failed with %d errno=%d", r, errno); if (thread_listing_status == CALLBACK_COMPLETED) { RAW_LOG(INFO, "Thread finding callback " "finished ok; hopefully everything is fine"); need_to_ignore_non_thread_objects = false; } else if (thread_listing_status == CALLBACK_STARTED) { RAW_LOG(FATAL, "Thread finding callback was " "interrupted or crashed; can't fix this"); } else { // CALLBACK_NOT_STARTED RAW_LOG(ERROR, "Could not find thread stacks. " "Will likely report false leak positives."); } } else if (r != 0) { RAW_LOG(ERROR, "Thread stacks not found for %d threads. " "Will likely report false leak positives.", r); } else { RAW_VLOG(11, "Thread stacks appear to be found for all threads"); } } else { RAW_LOG(WARNING, "Not looking for thread stacks; " "objects reachable only from there " "will be reported as leaks"); } // Do all other live data ignoring here if we did not do it // within thread listing callback with all threads stopped. if (need_to_ignore_non_thread_objects) { if (FLAGS_heap_check_ignore_global_live) { UseProcMapsLocked(RECORD_GLOBAL_DATA); } IgnoreNonThreadLiveObjectsLocked(); } if (live_objects_total) { RAW_VLOG(10, "Ignoring %" PRId64 " reachable objects of %" PRId64 " bytes", live_objects_total, live_bytes_total); } // Free these: we made them here and heap_profile never saw them Allocator::DeleteAndNull(&live_objects); Allocator::DeleteAndNull(&stack_tops); max_heap_object_size = old_max_heap_object_size; // reset this var } // Alignment at which we should consider pointer positions // in IgnoreLiveObjectsLocked. Will normally use the value of // FLAGS_heap_check_pointer_source_alignment. static size_t pointer_source_alignment = kPointerSourceAlignment; // Global lock for HeapLeakChecker::DoNoLeaks // to protect pointer_source_alignment. static SpinLock alignment_checker_lock(SpinLock::LINKER_INITIALIZED); // This function changes the live bits in the heap_profile-table's state: // we only record the live objects to be skipped. // // When checking if a byte sequence points to a heap object we use // HeapProfileTable::FindInsideAlloc to handle both pointers to // the start and inside of heap-allocated objects. // The "inside" case needs to be checked to support // at least the following relatively common cases: // - C++ arrays allocated with new FooClass[size] for classes // with destructors have their size recorded in a sizeof(int) field // before the place normal pointers point to. // - basic_string<>-s for e.g. the C++ library of gcc 3.4 // have the meta-info in basic_string<...>::_Rep recorded // before the place normal pointers point to. // - Multiple-inherited objects have their pointers when cast to // different base classes pointing inside of the actually // allocated object. // - Sometimes reachability pointers point to member objects of heap objects, // and then those member objects point to the full heap object. // - Third party UnicodeString: it stores a 32-bit refcount // (in both 32-bit and 64-bit binaries) as the first uint32 // in the allocated memory and a normal pointer points at // the second uint32 behind the refcount. // By finding these additional objects here // we slightly increase the chance to mistake random memory bytes // for a pointer and miss a leak in a particular run of a binary. // /*static*/ void HeapLeakChecker::IgnoreLiveObjectsLocked(const char* name, const char* name2) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); int64 live_object_count = 0; int64 live_byte_count = 0; while (!live_objects->empty()) { const char* object = reinterpret_cast(live_objects->back().ptr); size_t size = live_objects->back().size; const ObjectPlacement place = live_objects->back().place; live_objects->pop_back(); if (place == MUST_BE_ON_HEAP && heap_profile->MarkAsLive(object)) { live_object_count += 1; live_byte_count += size; } RAW_VLOG(13, "Looking for heap pointers in %p of %" PRIuS " bytes", object, size); const char* const whole_object = object; size_t const whole_size = size; // Try interpretting any byte sequence in object,size as a heap pointer: const size_t remainder = AsInt(object) % pointer_source_alignment; if (remainder) { object += pointer_source_alignment - remainder; if (size >= pointer_source_alignment - remainder) { size -= pointer_source_alignment - remainder; } else { size = 0; } } if (size < sizeof(void*)) continue; #ifdef NO_FRAME_POINTER // Frame pointer omission requires us to use libunwind, which uses direct // mmap and munmap system calls, and that needs special handling. if (name2 == kUnnamedProcSelfMapEntry) { static const uintptr_t page_mask = ~(getpagesize() - 1); const uintptr_t addr = reinterpret_cast(object); if ((addr & page_mask) == 0 && (size & page_mask) == 0) { // This is an object we slurped from /proc/self/maps. // It may or may not be readable at this point. // // In case all the above conditions made a mistake, and the object is // not related to libunwind, we also verify that it's not readable // before ignoring it. if (msync(const_cast(object), size, MS_ASYNC) != 0) { // Skip unreadable object, so we don't crash trying to sweep it. RAW_VLOG(0, "Ignoring inaccessible object [%p, %p) " "(msync error %d (%s))", object, object + size, errno, strerror(errno)); continue; } } } #endif const char* const max_object = object + size - sizeof(void*); while (object <= max_object) { // potentially unaligned load: const uintptr_t addr = *reinterpret_cast(object); // Do fast check before the more expensive HaveOnHeapLocked lookup: // this code runs for all memory words that are potentially pointers: const bool can_be_on_heap = // Order tests by the likelyhood of the test failing in 64/32 bit modes. // Yes, this matters: we either lose 5..6% speed in 32 bit mode // (which is already slower) or by a factor of 1.5..1.91 in 64 bit mode. // After the alignment test got dropped the above performance figures // must have changed; might need to revisit this. #if defined(__x86_64__) addr <= max_heap_address && // <= is for 0-sized object with max addr min_heap_address <= addr; #else min_heap_address <= addr && addr <= max_heap_address; // <= is for 0-sized object with max addr #endif if (can_be_on_heap) { const void* ptr = reinterpret_cast(addr); // Too expensive (inner loop): manually uncomment when debugging: // RAW_VLOG(17, "Trying pointer to %p at %p", ptr, object); size_t object_size; if (HaveOnHeapLocked(&ptr, &object_size) && heap_profile->MarkAsLive(ptr)) { // We take the (hopefully low) risk here of encountering by accident // a byte sequence in memory that matches an address of // a heap object which is in fact leaked. // I.e. in very rare and probably not repeatable/lasting cases // we might miss some real heap memory leaks. RAW_VLOG(14, "Found pointer to %p of %" PRIuS " bytes at %p " "inside %p of size %" PRIuS "", ptr, object_size, object, whole_object, whole_size); if (VLOG_IS_ON(15)) { // log call stacks to help debug how come something is not a leak HeapProfileTable::AllocInfo alloc; if (!heap_profile->FindAllocDetails(ptr, &alloc)) { RAW_LOG(FATAL, "FindAllocDetails failed on ptr %p", ptr); } RAW_LOG(INFO, "New live %p object's alloc stack:", ptr); for (int i = 0; i < alloc.stack_depth; ++i) { RAW_LOG(INFO, " @ %p", alloc.call_stack[i]); } } live_object_count += 1; live_byte_count += object_size; live_objects->push_back(AllocObject(ptr, object_size, IGNORED_ON_HEAP)); } } object += pointer_source_alignment; } } live_objects_total += live_object_count; live_bytes_total += live_byte_count; if (live_object_count) { RAW_VLOG(10, "Removed %" PRId64 " live heap objects of %" PRId64 " bytes: %s%s", live_object_count, live_byte_count, name, name2); } } //---------------------------------------------------------------------- // HeapLeakChecker leak check disabling components //---------------------------------------------------------------------- // static void HeapLeakChecker::DisableChecksIn(const char* pattern) { RAW_LOG(WARNING, "DisableChecksIn(%s) is ignored", pattern); } // static void HeapLeakChecker::DoIgnoreObject(const void* ptr) { SpinLockHolder l(&heap_checker_lock); if (!heap_checker_on) return; size_t object_size; if (!HaveOnHeapLocked(&ptr, &object_size)) { RAW_LOG(ERROR, "No live heap object at %p to ignore", ptr); } else { RAW_VLOG(10, "Going to ignore live object at %p of %" PRIuS " bytes", ptr, object_size); if (ignored_objects == NULL) { ignored_objects = new(Allocator::Allocate(sizeof(IgnoredObjectsMap))) IgnoredObjectsMap; } if (!ignored_objects->insert(make_pair(AsInt(ptr), object_size)).second) { RAW_LOG(WARNING, "Object at %p is already being ignored", ptr); } } } // static void HeapLeakChecker::UnIgnoreObject(const void* ptr) { SpinLockHolder l(&heap_checker_lock); if (!heap_checker_on) return; size_t object_size; if (!HaveOnHeapLocked(&ptr, &object_size)) { RAW_LOG(FATAL, "No live heap object at %p to un-ignore", ptr); } else { bool found = false; if (ignored_objects) { IgnoredObjectsMap::iterator object = ignored_objects->find(AsInt(ptr)); if (object != ignored_objects->end() && object_size == object->second) { ignored_objects->erase(object); found = true; RAW_VLOG(10, "Now not going to ignore live object " "at %p of %" PRIuS " bytes", ptr, object_size); } } if (!found) RAW_LOG(FATAL, "Object at %p has not been ignored", ptr); } } //---------------------------------------------------------------------- // HeapLeakChecker non-static functions //---------------------------------------------------------------------- char* HeapLeakChecker::MakeProfileNameLocked() { RAW_DCHECK(lock_->IsHeld(), ""); RAW_DCHECK(heap_checker_lock.IsHeld(), ""); const int len = profile_name_prefix->size() + strlen(name_) + 5 + strlen(HeapProfileTable::kFileExt) + 1; char* file_name = reinterpret_cast(Allocator::Allocate(len)); snprintf(file_name, len, "%s.%s-end%s", profile_name_prefix->c_str(), name_, HeapProfileTable::kFileExt); return file_name; } void HeapLeakChecker::Create(const char *name, bool make_start_snapshot) { SpinLockHolder l(lock_); name_ = NULL; // checker is inactive start_snapshot_ = NULL; has_checked_ = false; inuse_bytes_increase_ = 0; inuse_allocs_increase_ = 0; keep_profiles_ = false; char* n = new char[strlen(name) + 1]; // do this before we lock IgnoreObject(n); // otherwise it might be treated as live due to our stack { // Heap activity in other threads is paused for this whole scope. SpinLockHolder al(&alignment_checker_lock); SpinLockHolder hl(&heap_checker_lock); MemoryRegionMap::LockHolder ml; if (heap_checker_on && profile_name_prefix != NULL) { RAW_DCHECK(strchr(name, '/') == NULL, "must be a simple name"); memcpy(n, name, strlen(name) + 1); name_ = n; // checker is active if (make_start_snapshot) { start_snapshot_ = heap_profile->TakeSnapshot(); } const HeapProfileTable::Stats& t = heap_profile->total(); const size_t start_inuse_bytes = t.alloc_size - t.free_size; const size_t start_inuse_allocs = t.allocs - t.frees; RAW_VLOG(10, "Start check \"%s\" profile: %" PRIuS " bytes " "in %" PRIuS " objects", name_, start_inuse_bytes, start_inuse_allocs); } else { RAW_LOG(WARNING, "Heap checker is not active, " "hence checker \"%s\" will do nothing!", name); RAW_LOG(WARNING, "To activate set the HEAPCHECK environment variable.\n"); } } if (name_ == NULL) { UnIgnoreObject(n); delete[] n; // must be done after we unlock } } HeapLeakChecker::HeapLeakChecker(const char *name) : lock_(new SpinLock) { RAW_DCHECK(strcmp(name, "_main_") != 0, "_main_ is reserved"); Create(name, true/*create start_snapshot_*/); } HeapLeakChecker::HeapLeakChecker() : lock_(new SpinLock) { if (FLAGS_heap_check_before_constructors) { // We want to check for leaks of objects allocated during global // constructors (i.e., objects allocated already). So we do not // create a baseline snapshot and hence check for leaks of objects // that may have already been created. Create("_main_", false); } else { // We want to ignore leaks of objects allocated during global // constructors (i.e., objects allocated already). So we snapshot // the current heap contents and use them as a baseline that is // not reported by the leak checker. Create("_main_", true); } } ssize_t HeapLeakChecker::BytesLeaked() const { SpinLockHolder l(lock_); if (!has_checked_) { RAW_LOG(FATAL, "*NoLeaks|SameHeap must execute before this call"); } return inuse_bytes_increase_; } ssize_t HeapLeakChecker::ObjectsLeaked() const { SpinLockHolder l(lock_); if (!has_checked_) { RAW_LOG(FATAL, "*NoLeaks|SameHeap must execute before this call"); } return inuse_allocs_increase_; } // Save pid of main thread for using in naming dump files static int32 main_thread_pid = getpid(); #ifdef HAVE_PROGRAM_INVOCATION_NAME #ifdef __UCLIBC__ extern const char* program_invocation_name; extern const char* program_invocation_short_name; #else extern char* program_invocation_name; extern char* program_invocation_short_name; #endif static const char* invocation_name() { return program_invocation_short_name; } static string invocation_path() { return program_invocation_name; } #else static const char* invocation_name() { return ""; } static string invocation_path() { return ""; } #endif // Prints commands that users can run to get more information // about the reported leaks. static void SuggestPprofCommand(const char* pprof_file_arg) { // Extra help information to print for the user when the test is // being run in a way where the straightforward pprof command will // not suffice. string extra_help; // Common header info to print for remote runs const string remote_header = "This program is being executed remotely and therefore the pprof\n" "command printed above will not work. Either run this program\n" "locally, or adjust the pprof command as follows to allow it to\n" "work on your local machine:\n"; // Extra command for fetching remote data string fetch_cmd; RAW_LOG(WARNING, "\n\n" "If the preceding stack traces are not enough to find " "the leaks, try running THIS shell command:\n\n" "%s%s %s \"%s\" --inuse_objects --lines --heapcheck " " --edgefraction=1e-10 --nodefraction=1e-10 --gv\n" "\n" "%s" "If you are still puzzled about why the leaks are " "there, try rerunning this program with " "HEAP_CHECK_TEST_POINTER_ALIGNMENT=1 and/or with " "HEAP_CHECK_MAX_POINTER_OFFSET=-1\n" "If the leak report occurs in a small fraction of runs, " "try running with TCMALLOC_MAX_FREE_QUEUE_SIZE of few hundred MB " "or with TCMALLOC_RECLAIM_MEMORY=false, " // only works for debugalloc "it might help find leaks more repeatably\n", fetch_cmd.c_str(), "pprof", // works as long as pprof is on your path invocation_path().c_str(), pprof_file_arg, extra_help.c_str() ); } bool HeapLeakChecker::DoNoLeaks(ShouldSymbolize should_symbolize) { SpinLockHolder l(lock_); // The locking also helps us keep the messages // for the two checks close together. SpinLockHolder al(&alignment_checker_lock); // thread-safe: protected by alignment_checker_lock static bool have_disabled_hooks_for_symbolize = false; // Once we've checked for leaks and symbolized the results once, it's // not safe to do it again. This is because in order to symbolize // safely, we had to disable all the malloc hooks here, so we no // longer can be confident we've collected all the data we need. if (have_disabled_hooks_for_symbolize) { RAW_LOG(FATAL, "Must not call heap leak checker manually after " " program-exit's automatic check."); } HeapProfileTable::Snapshot* leaks = NULL; char* pprof_file = NULL; { // Heap activity in other threads is paused during this function // (i.e. until we got all profile difference info). SpinLockHolder hl(&heap_checker_lock); if (heap_checker_on == false) { if (name_ != NULL) { // leak checking enabled when created the checker RAW_LOG(WARNING, "Heap leak checker got turned off after checker " "\"%s\" has been created, no leak check is being done for it!", name_); } return true; } // Update global_region_caller_ranges. They may need to change since // e.g. initialization because shared libraries might have been loaded or // unloaded. Allocator::DeleteAndNullIfNot(&global_region_caller_ranges); ProcMapsResult pm_result = UseProcMapsLocked(DISABLE_LIBRARY_ALLOCS); RAW_CHECK(pm_result == PROC_MAPS_USED, ""); // Keep track of number of internally allocated objects so we // can detect leaks in the heap-leak-checket itself const int initial_allocs = Allocator::alloc_count(); if (name_ == NULL) { RAW_LOG(FATAL, "Heap leak checker must not be turned on " "after construction of a HeapLeakChecker"); } MemoryRegionMap::LockHolder ml; int a_local_var; // Use our stack ptr to make stack data live: // Make the heap profile, other threads are locked out. HeapProfileTable::Snapshot* base = reinterpret_cast(start_snapshot_); RAW_DCHECK(FLAGS_heap_check_pointer_source_alignment > 0, ""); pointer_source_alignment = FLAGS_heap_check_pointer_source_alignment; IgnoreAllLiveObjectsLocked(&a_local_var); leaks = heap_profile->NonLiveSnapshot(base); inuse_bytes_increase_ = static_cast(leaks->total().alloc_size); inuse_allocs_increase_ = static_cast(leaks->total().allocs); if (leaks->Empty()) { heap_profile->ReleaseSnapshot(leaks); leaks = NULL; // We can only check for internal leaks along the no-user-leak // path since in the leak path we temporarily release // heap_checker_lock and another thread can come in and disturb // allocation counts. if (Allocator::alloc_count() != initial_allocs) { RAW_LOG(FATAL, "Internal HeapChecker leak of %d objects ; %d -> %d", Allocator::alloc_count() - initial_allocs, initial_allocs, Allocator::alloc_count()); } } else if (FLAGS_heap_check_test_pointer_alignment) { if (pointer_source_alignment == 1) { RAW_LOG(WARNING, "--heap_check_test_pointer_alignment has no effect: " "--heap_check_pointer_source_alignment was already set to 1"); } else { // Try with reduced pointer aligment pointer_source_alignment = 1; IgnoreAllLiveObjectsLocked(&a_local_var); HeapProfileTable::Snapshot* leaks_wo_align = heap_profile->NonLiveSnapshot(base); pointer_source_alignment = FLAGS_heap_check_pointer_source_alignment; if (leaks_wo_align->Empty()) { RAW_LOG(WARNING, "Found no leaks without pointer alignment: " "something might be placing pointers at " "unaligned addresses! This needs to be fixed."); } else { RAW_LOG(INFO, "Found leaks without pointer alignment as well: " "unaligned pointers must not be the cause of leaks."); RAW_LOG(INFO, "--heap_check_test_pointer_alignment did not help " "to diagnose the leaks."); } heap_profile->ReleaseSnapshot(leaks_wo_align); } } if (leaks != NULL) { pprof_file = MakeProfileNameLocked(); } } has_checked_ = true; if (leaks == NULL) { if (FLAGS_heap_check_max_pointer_offset == -1) { RAW_LOG(WARNING, "Found no leaks without max_pointer_offset restriction: " "it's possible that the default value of " "heap_check_max_pointer_offset flag is too low. " "Do you use pointers with larger than that offsets " "pointing in the middle of heap-allocated objects?"); } const HeapProfileTable::Stats& stats = heap_profile->total(); RAW_VLOG(heap_checker_info_level, "No leaks found for check \"%s\" " "(but no 100%% guarantee that there aren't any): " "found %" PRId64 " reachable heap objects of %" PRId64 " bytes", name_, int64(stats.allocs - stats.frees), int64(stats.alloc_size - stats.free_size)); } else { if (should_symbolize == SYMBOLIZE) { // To turn addresses into symbols, we need to fork, which is a // problem if both parent and child end up trying to call the // same malloc-hooks we've set up, at the same time. To avoid // trouble, we turn off the hooks before symbolizing. Note that // this makes it unsafe to ever leak-report again! Luckily, we // typically only want to report once in a program's run, at the // very end. if (MallocHook::GetNewHook() == NewHook) MallocHook::SetNewHook(NULL); if (MallocHook::GetDeleteHook() == DeleteHook) MallocHook::SetDeleteHook(NULL); MemoryRegionMap::Shutdown(); // Make sure all the hooks really got unset: RAW_CHECK(MallocHook::GetNewHook() == NULL, ""); RAW_CHECK(MallocHook::GetDeleteHook() == NULL, ""); RAW_CHECK(MallocHook::GetMmapHook() == NULL, ""); RAW_CHECK(MallocHook::GetSbrkHook() == NULL, ""); have_disabled_hooks_for_symbolize = true; leaks->ReportLeaks(name_, pprof_file, true); // true = should_symbolize } else { leaks->ReportLeaks(name_, pprof_file, false); } if (FLAGS_heap_check_identify_leaks) { leaks->ReportIndividualObjects(); } SuggestPprofCommand(pprof_file); { SpinLockHolder hl(&heap_checker_lock); heap_profile->ReleaseSnapshot(leaks); Allocator::Free(pprof_file); } } return (leaks == NULL); } HeapLeakChecker::~HeapLeakChecker() { if (name_ != NULL) { // had leak checking enabled when created the checker if (!has_checked_) { RAW_LOG(FATAL, "Some *NoLeaks|SameHeap method" " must be called on any created HeapLeakChecker"); } // Deallocate any snapshot taken at start if (start_snapshot_ != NULL) { SpinLockHolder l(&heap_checker_lock); heap_profile->ReleaseSnapshot( reinterpret_cast(start_snapshot_)); } UnIgnoreObject(name_); delete[] name_; name_ = NULL; } delete lock_; } //---------------------------------------------------------------------- // HeapLeakChecker overall heap check components //---------------------------------------------------------------------- // static bool HeapLeakChecker::IsActive() { SpinLockHolder l(&heap_checker_lock); return heap_checker_on; } vector* HeapCleaner::heap_cleanups_ = NULL; // When a HeapCleaner object is intialized, add its function to the static list // of cleaners to be run before leaks checking. HeapCleaner::HeapCleaner(void_function f) { if (heap_cleanups_ == NULL) heap_cleanups_ = new vector; heap_cleanups_->push_back(f); } // Run all of the cleanup functions and delete the vector. void HeapCleaner::RunHeapCleanups() { if (!heap_cleanups_) return; for (int i = 0; i < heap_cleanups_->size(); i++) { void (*f)(void) = (*heap_cleanups_)[i]; f(); } delete heap_cleanups_; heap_cleanups_ = NULL; } // Program exit heap cleanup registered as a module object destructor. // Will not get executed when we crash on a signal. // void HeapLeakChecker_RunHeapCleanups() { if (FLAGS_heap_check == "local") // don't check heap in this mode return; { SpinLockHolder l(&heap_checker_lock); // can get here (via forks?) with other pids if (heap_checker_pid != getpid()) return; } HeapCleaner::RunHeapCleanups(); if (!FLAGS_heap_check_after_destructors) HeapLeakChecker::DoMainHeapCheck(); } static bool internal_init_start_has_run = false; // Called exactly once, before main() (but hopefully just before). // This picks a good unique name for the dumped leak checking heap profiles. // // Because we crash when InternalInitStart is called more than once, // it's fine that we hold heap_checker_lock only around pieces of // this function: this is still enough for thread-safety w.r.t. other functions // of this module. // We can't hold heap_checker_lock throughout because it would deadlock // on a memory allocation since our new/delete hooks can be on. // void HeapLeakChecker_InternalInitStart() { { SpinLockHolder l(&heap_checker_lock); RAW_CHECK(!internal_init_start_has_run, "Heap-check constructor called twice. Perhaps you both linked" " in the heap checker, and also used LD_PRELOAD to load it?"); internal_init_start_has_run = true; #ifdef ADDRESS_SANITIZER // AddressSanitizer's custom malloc conflicts with HeapChecker. FLAGS_heap_check = ""; #endif if (FLAGS_heap_check.empty()) { // turns out we do not need checking in the end; can stop profiling HeapLeakChecker::TurnItselfOffLocked(); return; } else if (RunningOnValgrind()) { // There is no point in trying -- we'll just fail. RAW_LOG(WARNING, "Can't run under Valgrind; will turn itself off"); HeapLeakChecker::TurnItselfOffLocked(); return; } } // Changing this to false can be useful when debugging heap-checker itself: if (!FLAGS_heap_check_run_under_gdb && IsDebuggerAttached()) { RAW_LOG(WARNING, "Someone is ptrace()ing us; will turn itself off"); SpinLockHolder l(&heap_checker_lock); HeapLeakChecker::TurnItselfOffLocked(); return; } { SpinLockHolder l(&heap_checker_lock); if (!constructor_heap_profiling) { RAW_LOG(FATAL, "Can not start so late. You have to enable heap checking " "with HEAPCHECK=."); } } // Set all flags RAW_DCHECK(FLAGS_heap_check_pointer_source_alignment > 0, ""); if (FLAGS_heap_check == "minimal") { // The least we can check. FLAGS_heap_check_before_constructors = false; // from after main // (ignore more) FLAGS_heap_check_after_destructors = false; // to after cleanup // (most data is live) FLAGS_heap_check_ignore_thread_live = true; // ignore all live FLAGS_heap_check_ignore_global_live = true; // ignore all live } else if (FLAGS_heap_check == "normal") { // Faster than 'minimal' and not much stricter. FLAGS_heap_check_before_constructors = true; // from no profile (fast) FLAGS_heap_check_after_destructors = false; // to after cleanup // (most data is live) FLAGS_heap_check_ignore_thread_live = true; // ignore all live FLAGS_heap_check_ignore_global_live = true; // ignore all live } else if (FLAGS_heap_check == "strict") { // A bit stricter than 'normal': global destructors must fully clean up // after themselves if they are present. FLAGS_heap_check_before_constructors = true; // from no profile (fast) FLAGS_heap_check_after_destructors = true; // to after destructors // (less data live) FLAGS_heap_check_ignore_thread_live = true; // ignore all live FLAGS_heap_check_ignore_global_live = true; // ignore all live } else if (FLAGS_heap_check == "draconian") { // Drop not very portable and not very exact live heap flooding. FLAGS_heap_check_before_constructors = true; // from no profile (fast) FLAGS_heap_check_after_destructors = true; // to after destructors // (need them) FLAGS_heap_check_ignore_thread_live = false; // no live flood (stricter) FLAGS_heap_check_ignore_global_live = false; // no live flood (stricter) } else if (FLAGS_heap_check == "as-is") { // do nothing: use other flags as is } else if (FLAGS_heap_check == "local") { // do nothing } else { RAW_LOG(FATAL, "Unsupported heap_check flag: %s", FLAGS_heap_check.c_str()); } // FreeBSD doesn't seem to honor atexit execution order: // http://code.google.com/p/gperftools/issues/detail?id=375 // Since heap-checking before destructors depends on atexit running // at the right time, on FreeBSD we always check after, even in the // less strict modes. This just means FreeBSD is always a bit // stricter in its checking than other OSes. // This now appears to be the case in other OSes as well; // so always check afterwards. FLAGS_heap_check_after_destructors = true; { SpinLockHolder l(&heap_checker_lock); RAW_DCHECK(heap_checker_pid == getpid(), ""); heap_checker_on = true; RAW_DCHECK(heap_profile, ""); HeapLeakChecker::ProcMapsResult pm_result = HeapLeakChecker::UseProcMapsLocked(HeapLeakChecker::DISABLE_LIBRARY_ALLOCS); // might neeed to do this more than once // if one later dynamically loads libraries that we want disabled if (pm_result != HeapLeakChecker::PROC_MAPS_USED) { // can't function HeapLeakChecker::TurnItselfOffLocked(); return; } } // make a good place and name for heap profile leak dumps string* profile_prefix = new string(FLAGS_heap_check_dump_directory + "/" + invocation_name()); // Finalize prefix for dumping leak checking profiles. const int32 our_pid = getpid(); // safest to call getpid() outside lock { SpinLockHolder l(&heap_checker_lock); // main_thread_pid might still be 0 if this function is being called before // global constructors. In that case, our pid *is* the main pid. if (main_thread_pid == 0) main_thread_pid = our_pid; } char pid_buf[15]; snprintf(pid_buf, sizeof(pid_buf), ".%d", main_thread_pid); *profile_prefix += pid_buf; { SpinLockHolder l(&heap_checker_lock); RAW_DCHECK(profile_name_prefix == NULL, ""); profile_name_prefix = profile_prefix; } // Make sure new/delete hooks are installed properly // and heap profiler is indeed able to keep track // of the objects being allocated. // We test this to make sure we are indeed checking for leaks. char* test_str = new char[5]; size_t size; { SpinLockHolder l(&heap_checker_lock); RAW_CHECK(heap_profile->FindAlloc(test_str, &size), "our own new/delete not linked?"); } delete[] test_str; { SpinLockHolder l(&heap_checker_lock); // This check can fail when it should not if another thread allocates // into this same spot right this moment, // which is unlikely since this code runs in InitGoogle. RAW_CHECK(!heap_profile->FindAlloc(test_str, &size), "our own new/delete not linked?"); } // If we crash in the above code, it probably means that // "nm | grep new" will show that tcmalloc's new/delete // implementation did not get linked-in into this binary // (i.e. nm will list __builtin_new and __builtin_vec_new as undefined). // If this happens, it is a BUILD bug to be fixed. RAW_VLOG(heap_checker_info_level, "WARNING: Perftools heap leak checker is active " "-- Performance may suffer"); if (FLAGS_heap_check != "local") { HeapLeakChecker* main_hc = new HeapLeakChecker(); SpinLockHolder l(&heap_checker_lock); RAW_DCHECK(main_heap_checker == NULL, "Repeated creation of main_heap_checker"); main_heap_checker = main_hc; do_main_heap_check = true; } { SpinLockHolder l(&heap_checker_lock); RAW_CHECK(heap_checker_on && constructor_heap_profiling, "Leak checking is expected to be fully turned on now"); } // For binaries built in debug mode, this will set release queue of // debugallocation.cc to 100M to make it less likely for real leaks to // be hidden due to reuse of heap memory object addresses. // Running a test with --malloc_reclaim_memory=0 would help find leaks even // better, but the test might run out of memory as a result. // The scenario is that a heap object at address X is allocated and freed, // but some other data-structure still retains a pointer to X. // Then the same heap memory is used for another object, which is leaked, // but the leak is not noticed due to the pointer to the original object at X. // TODO(csilvers): support this in some manner. #if 0 SetCommandLineOptionWithMode("max_free_queue_size", "104857600", // 100M SET_FLAG_IF_DEFAULT); #endif } // We want this to run early as well, but not so early as // ::BeforeConstructors (we want flag assignments to have already // happened, for instance). Initializer-registration does the trick. REGISTER_MODULE_INITIALIZER(init_start, HeapLeakChecker_InternalInitStart()); REGISTER_MODULE_DESTRUCTOR(init_start, HeapLeakChecker_RunHeapCleanups()); // static bool HeapLeakChecker::NoGlobalLeaksMaybeSymbolize( ShouldSymbolize should_symbolize) { // we never delete or change main_heap_checker once it's set: HeapLeakChecker* main_hc = GlobalChecker(); if (main_hc) { RAW_VLOG(10, "Checking for whole-program memory leaks"); return main_hc->DoNoLeaks(should_symbolize); } return true; } // static bool HeapLeakChecker::DoMainHeapCheck() { if (FLAGS_heap_check_delay_seconds > 0) { sleep(FLAGS_heap_check_delay_seconds); } { SpinLockHolder l(&heap_checker_lock); if (!do_main_heap_check) return false; RAW_DCHECK(heap_checker_pid == getpid(), ""); do_main_heap_check = false; // will do it now; no need to do it more } // The program is over, so it's safe to symbolize addresses (which // requires a fork) because no serious work is expected to be done // after this. Symbolizing is really useful -- knowing what // function has a leak is better than knowing just an address -- // and while we can only safely symbolize once in a program run, // now is the time (after all, there's no "later" that would be better). if (!NoGlobalLeaksMaybeSymbolize(SYMBOLIZE)) { if (FLAGS_heap_check_identify_leaks) { RAW_LOG(FATAL, "Whole-program memory leaks found."); } RAW_LOG(ERROR, "Exiting with error code (instead of crashing) " "because of whole-program memory leaks"); _exit(1); // we don't want to call atexit() routines! } return true; } // static HeapLeakChecker* HeapLeakChecker::GlobalChecker() { SpinLockHolder l(&heap_checker_lock); return main_heap_checker; } // static bool HeapLeakChecker::NoGlobalLeaks() { // symbolizing requires a fork, which isn't safe to do in general. return NoGlobalLeaksMaybeSymbolize(DO_NOT_SYMBOLIZE); } // static void HeapLeakChecker::CancelGlobalCheck() { SpinLockHolder l(&heap_checker_lock); if (do_main_heap_check) { RAW_VLOG(heap_checker_info_level, "Canceling the automatic at-exit whole-program memory leak check"); do_main_heap_check = false; } } // static void HeapLeakChecker::BeforeConstructorsLocked() { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); RAW_CHECK(!constructor_heap_profiling, "BeforeConstructorsLocked called multiple times"); #ifdef ADDRESS_SANITIZER // AddressSanitizer's custom malloc conflicts with HeapChecker. return; #endif // Set hooks early to crash if 'new' gets called before we make heap_profile, // and make sure no other hooks existed: RAW_CHECK(MallocHook::AddNewHook(&NewHook), ""); RAW_CHECK(MallocHook::AddDeleteHook(&DeleteHook), ""); constructor_heap_profiling = true; MemoryRegionMap::Init(1, /* use_buckets */ false); // Set up MemoryRegionMap with (at least) one caller stack frame to record // (important that it's done before HeapProfileTable creation below). Allocator::Init(); RAW_CHECK(heap_profile == NULL, ""); heap_profile = new(Allocator::Allocate(sizeof(HeapProfileTable))) HeapProfileTable(&Allocator::Allocate, &Allocator::Free, /* profile_mmap */ false); RAW_VLOG(10, "Starting tracking the heap"); heap_checker_on = true; } // static void HeapLeakChecker::TurnItselfOffLocked() { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); // Set FLAGS_heap_check to "", for users who test for it if (!FLAGS_heap_check.empty()) // be a noop in the common case FLAGS_heap_check.clear(); // because clear() could allocate memory if (constructor_heap_profiling) { RAW_CHECK(heap_checker_on, ""); RAW_VLOG(heap_checker_info_level, "Turning perftools heap leak checking off"); heap_checker_on = false; // Unset our hooks checking they were set: RAW_CHECK(MallocHook::RemoveNewHook(&NewHook), ""); RAW_CHECK(MallocHook::RemoveDeleteHook(&DeleteHook), ""); Allocator::DeleteAndNull(&heap_profile); // free our optional global data: Allocator::DeleteAndNullIfNot(&ignored_objects); Allocator::DeleteAndNullIfNot(&disabled_ranges); Allocator::DeleteAndNullIfNot(&global_region_caller_ranges); Allocator::Shutdown(); MemoryRegionMap::Shutdown(); } RAW_CHECK(!heap_checker_on, ""); } extern bool heap_leak_checker_bcad_variable; // in heap-checker-bcad.cc static bool has_called_before_constructors = false; // TODO(maxim): inline this function with // MallocHook_InitAtFirstAllocation_HeapLeakChecker, and also rename // HeapLeakChecker::BeforeConstructorsLocked. void HeapLeakChecker_BeforeConstructors() { SpinLockHolder l(&heap_checker_lock); // We can be called from several places: the first mmap/sbrk/alloc call // or the first global c-tor from heap-checker-bcad.cc: // Do not re-execute initialization: if (has_called_before_constructors) return; has_called_before_constructors = true; heap_checker_pid = getpid(); // set it always heap_leak_checker_bcad_variable = true; // just to reference it, so that heap-checker-bcad.o is linked in // This function can be called *very* early, before the normal // global-constructor that sets FLAGS_verbose. Set it manually now, // so the RAW_LOG messages here are controllable. const char* verbose_str = GetenvBeforeMain("PERFTOOLS_VERBOSE"); if (verbose_str && atoi(verbose_str)) { // different than the default of 0? FLAGS_verbose = atoi(verbose_str); } bool need_heap_check = true; // The user indicates a desire for heap-checking via the HEAPCHECK // environment variable. If it's not set, there's no way to do // heap-checking. if (!GetenvBeforeMain("HEAPCHECK")) { need_heap_check = false; } #ifdef HAVE_GETEUID if (need_heap_check && getuid() != geteuid()) { // heap-checker writes out files. Thus, for security reasons, we don't // recognize the env. var. to turn on heap-checking if we're setuid. RAW_LOG(WARNING, ("HeapChecker: ignoring HEAPCHECK because " "program seems to be setuid\n")); need_heap_check = false; } #endif if (need_heap_check) { HeapLeakChecker::BeforeConstructorsLocked(); } } // This function overrides the weak function defined in malloc_hook.cc and // called by one of the initial malloc hooks (malloc_hook.cc) when the very // first memory allocation or an mmap/sbrk happens. This ensures that // HeapLeakChecker is initialized and installs all its hooks early enough to // track absolutely all memory allocations and all memory region acquisitions // via mmap and sbrk. extern "C" void MallocHook_InitAtFirstAllocation_HeapLeakChecker() { HeapLeakChecker_BeforeConstructors(); } // This function is executed after all global object destructors run. void HeapLeakChecker_AfterDestructors() { { SpinLockHolder l(&heap_checker_lock); // can get here (via forks?) with other pids if (heap_checker_pid != getpid()) return; } if (FLAGS_heap_check_after_destructors) { if (HeapLeakChecker::DoMainHeapCheck()) { const struct timespec sleep_time = { 0, 500000000 }; // 500 ms nanosleep(&sleep_time, NULL); // Need this hack to wait for other pthreads to exit. // Otherwise tcmalloc find errors // on a free() call from pthreads. } } SpinLockHolder l(&heap_checker_lock); RAW_CHECK(!do_main_heap_check, "should have done it"); } //---------------------------------------------------------------------- // HeapLeakChecker disabling helpers //---------------------------------------------------------------------- // These functions are at the end of the file to prevent their inlining: // static void HeapLeakChecker::DisableChecksFromToLocked(const void* start_address, const void* end_address, int max_depth) { RAW_DCHECK(heap_checker_lock.IsHeld(), ""); RAW_DCHECK(start_address < end_address, ""); if (disabled_ranges == NULL) { disabled_ranges = new(Allocator::Allocate(sizeof(DisabledRangeMap))) DisabledRangeMap; } RangeValue value; value.start_address = AsInt(start_address); value.max_depth = max_depth; if (disabled_ranges->insert(make_pair(AsInt(end_address), value)).second) { RAW_VLOG(10, "Disabling leak checking in stack traces " "under frame addresses between %p..%p", start_address, end_address); } else { // check that this is just a verbatim repetition RangeValue const& val = disabled_ranges->find(AsInt(end_address))->second; if (val.max_depth != value.max_depth || val.start_address != value.start_address) { RAW_LOG(FATAL, "Two DisableChecksToHereFrom calls conflict: " "(%p, %p, %d) vs. (%p, %p, %d)", AsPtr(val.start_address), end_address, val.max_depth, start_address, end_address, max_depth); } } } // static inline bool HeapLeakChecker::HaveOnHeapLocked(const void** ptr, size_t* object_size) { // Commented-out because HaveOnHeapLocked is very performance-critical: // RAW_DCHECK(heap_checker_lock.IsHeld(), ""); const uintptr_t addr = AsInt(*ptr); if (heap_profile->FindInsideAlloc( *ptr, max_heap_object_size, ptr, object_size)) { RAW_VLOG(16, "Got pointer into %p at +%" PRIuPTR " offset", *ptr, addr - AsInt(*ptr)); return true; } return false; } // static const void* HeapLeakChecker::GetAllocCaller(void* ptr) { // this is used only in the unittest, so the heavy checks are fine HeapProfileTable::AllocInfo info; { SpinLockHolder l(&heap_checker_lock); RAW_CHECK(heap_profile->FindAllocDetails(ptr, &info), ""); } RAW_CHECK(info.stack_depth >= 1, ""); return info.call_stack[0]; } gperftools-2.4/src/heap-checker-bcad.cc0000644000000000000000000001006612440704174014744 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // All Rights Reserved. // // Author: Maxim Lifantsev // // A file to ensure that components of heap leak checker run before // all global object constructors and after all global object // destructors. // // This file must be the last library any binary links against. // Otherwise, the heap checker may not be able to run early enough to // catalog all the global objects in your program. If this happens, // and later in the program you allocate memory and have one of these // "uncataloged" global objects point to it, the heap checker will // consider that allocation to be a leak, even though it's not (since // the allocated object is reachable from global data and hence "live"). #include // for abort() #include // A dummy variable to refer from heap-checker.cc. This is to make // sure this file is not optimized out by the linker. bool heap_leak_checker_bcad_variable; extern void HeapLeakChecker_AfterDestructors(); // in heap-checker.cc // A helper class to ensure that some components of heap leak checking // can happen before construction and after destruction // of all global/static objects. class HeapLeakCheckerGlobalPrePost { public: HeapLeakCheckerGlobalPrePost() { if (count_ == 0) { // The 'new int' will ensure that we have run an initial malloc // hook, which will set up the heap checker via // MallocHook_InitAtFirstAllocation_HeapLeakChecker. See malloc_hook.cc. // This is done in this roundabout fashion in order to avoid self-deadlock // if we directly called HeapLeakChecker_BeforeConstructors here. delete new int; // This needs to be called before the first allocation of an STL // object, but after libc is done setting up threads (because it // calls setenv, which requires a thread-aware errno). By // putting it here, we hope it's the first bit of code executed // after the libc global-constructor code. MallocExtension::Initialize(); } ++count_; } ~HeapLeakCheckerGlobalPrePost() { if (count_ <= 0) abort(); --count_; if (count_ == 0) HeapLeakChecker_AfterDestructors(); } private: // Counter of constructions/destructions of objects of this class // (just in case there are more than one of them). static int count_; }; int HeapLeakCheckerGlobalPrePost::count_ = 0; // The early-construction/late-destruction global object. static const HeapLeakCheckerGlobalPrePost heap_leak_checker_global_pre_post; gperftools-2.4/src/debugallocation.cc0000644000000000000000000015336512440704174014704 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2000, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Urs Holzle #include "config.h" #include #ifdef HAVE_FCNTL_H #include #endif #ifdef HAVE_INTTYPES_H #include #endif // We only need malloc.h for struct mallinfo. #ifdef HAVE_STRUCT_MALLINFO // Malloc can be in several places on older versions of OS X. # if defined(HAVE_MALLOC_H) # include # elif defined(HAVE_MALLOC_MALLOC_H) # include # elif defined(HAVE_SYS_MALLOC_H) # include # endif #endif #ifdef HAVE_PTHREAD #include #endif #include #include #include #ifdef HAVE_MMAP #include #endif #include #include #ifdef HAVE_UNISTD_H #include #endif #include #include #include #include "addressmap-inl.h" #include "base/commandlineflags.h" #include "base/googleinit.h" #include "base/logging.h" #include "base/spinlock.h" #include "malloc_hook-inl.h" #include "symbolize.h" // NOTE: due to #define below, tcmalloc.cc will omit tc_XXX // definitions. So that debug implementations can be defined // instead. We're going to use do_malloc, do_free and other do_XXX // functions that are defined in tcmalloc.cc for actual memory // management #define TCMALLOC_USING_DEBUGALLOCATION #include "tcmalloc.cc" // __THROW is defined in glibc systems. It means, counter-intuitively, // "This function will never throw an exception." It's an optional // optimization tool, but we may need to use it to match glibc prototypes. #ifndef __THROW // I guess we're not on a glibc system # define __THROW // __THROW is just an optimization, so ok to make it "" #endif // On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old // form of the name instead. #ifndef MAP_ANONYMOUS # define MAP_ANONYMOUS MAP_ANON #endif // ========================================================================= // DEFINE_bool(malloctrace, EnvToBool("TCMALLOC_TRACE", false), "Enables memory (de)allocation tracing to /tmp/google.alloc."); #ifdef HAVE_MMAP DEFINE_bool(malloc_page_fence, EnvToBool("TCMALLOC_PAGE_FENCE", false), "Enables putting of memory allocations at page boundaries " "with a guard page following the allocation (to catch buffer " "overruns right when they happen)."); DEFINE_bool(malloc_page_fence_never_reclaim, EnvToBool("TCMALLOC_PAGE_FRANCE_NEVER_RECLAIM", false), "Enables making the virtual address space inaccessible " "upon a deallocation instead of returning it and reusing later."); #else DEFINE_bool(malloc_page_fence, false, "Not usable (requires mmap)"); DEFINE_bool(malloc_page_fence_never_reclaim, false, "Not usable (required mmap)"); #endif DEFINE_bool(malloc_reclaim_memory, EnvToBool("TCMALLOC_RECLAIM_MEMORY", true), "If set to false, we never return memory to malloc " "when an object is deallocated. This ensures that all " "heap object addresses are unique."); DEFINE_int32(max_free_queue_size, EnvToInt("TCMALLOC_MAX_FREE_QUEUE_SIZE", 10*1024*1024), "If greater than 0, keep freed blocks in a queue instead of " "releasing them to the allocator immediately. Release them when " "the total size of all blocks in the queue would otherwise exceed " "this limit."); DEFINE_bool(symbolize_stacktrace, EnvToBool("TCMALLOC_SYMBOLIZE_STACKTRACE", true), "Symbolize the stack trace when provided (on some error exits)"); // If we are LD_PRELOAD-ed against a non-pthreads app, then // pthread_once won't be defined. We declare it here, for that // case (with weak linkage) which will cause the non-definition to // resolve to NULL. We can then check for NULL or not in Instance. extern "C" int pthread_once(pthread_once_t *, void (*)(void)) ATTRIBUTE_WEAK; // ========================================================================= // // A safe version of printf() that does not do any allocation and // uses very little stack space. static void TracePrintf(int fd, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 2, 3))); // Round "value" up to next "alignment" boundary. // Requires that "alignment" be a power of two. static intptr_t RoundUp(intptr_t value, intptr_t alignment) { return (value + alignment - 1) & ~(alignment - 1); } // ========================================================================= // class MallocBlock; // A circular buffer to hold freed blocks of memory. MallocBlock::Deallocate // (below) pushes blocks into this queue instead of returning them to the // underlying allocator immediately. See MallocBlock::Deallocate for more // information. // // We can't use an STL class for this because we need to be careful not to // perform any heap de-allocations in any of the code in this class, since the // code in MallocBlock::Deallocate is not re-entrant. template class FreeQueue { public: FreeQueue() : q_front_(0), q_back_(0) {} bool Full() { return (q_front_ + 1) % kFreeQueueSize == q_back_; } void Push(const QueueEntry& block) { q_[q_front_] = block; q_front_ = (q_front_ + 1) % kFreeQueueSize; } QueueEntry Pop() { RAW_CHECK(q_back_ != q_front_, "Queue is empty"); const QueueEntry& ret = q_[q_back_]; q_back_ = (q_back_ + 1) % kFreeQueueSize; return ret; } size_t size() const { return (q_front_ - q_back_ + kFreeQueueSize) % kFreeQueueSize; } private: // Maximum number of blocks kept in the free queue before being freed. static const int kFreeQueueSize = 1024; QueueEntry q_[kFreeQueueSize]; int q_front_; int q_back_; }; struct MallocBlockQueueEntry { MallocBlockQueueEntry() : block(NULL), size(0), num_deleter_pcs(0), deleter_threadid(0) {} MallocBlockQueueEntry(MallocBlock* b, size_t s) : block(b), size(s) { if (FLAGS_max_free_queue_size != 0 && b != NULL) { // Adjust the number of frames to skip (4) if you change the // location of this call. num_deleter_pcs = GetStackTrace(deleter_pcs, sizeof(deleter_pcs) / sizeof(deleter_pcs[0]), 4); deleter_threadid = pthread_self(); } else { num_deleter_pcs = 0; // Zero is an illegal pthread id by my reading of the pthread // implementation: deleter_threadid = 0; } } MallocBlock* block; size_t size; // When deleted and put in the free queue, we (flag-controlled) // record the stack so that if corruption is later found, we can // print the deleter's stack. (These three vars add 144 bytes of // overhead under the LP64 data model.) void* deleter_pcs[16]; int num_deleter_pcs; pthread_t deleter_threadid; }; class MallocBlock { public: // allocation type constants // Different allocation types we distinguish. // Note: The lower 4 bits are not random: we index kAllocName array // by these values masked with kAllocTypeMask; // the rest are "random" magic bits to help catch memory corruption. static const int kMallocType = 0xEFCDAB90; static const int kNewType = 0xFEBADC81; static const int kArrayNewType = 0xBCEADF72; private: // constants // A mask used on alloc types above to get to 0, 1, 2 static const int kAllocTypeMask = 0x3; // An additional bit to set in AllocType constants // to mark now deallocated regions. static const int kDeallocatedTypeBit = 0x4; // For better memory debugging, we initialize all storage to known // values, and overwrite the storage when it's deallocated: // Byte that fills uninitialized storage. static const int kMagicUninitializedByte = 0xAB; // Byte that fills deallocated storage. // NOTE: tcmalloc.cc depends on the value of kMagicDeletedByte // to work around a bug in the pthread library. static const int kMagicDeletedByte = 0xCD; // A size_t (type of alloc_type_ below) in a deallocated storage // filled with kMagicDeletedByte. static const size_t kMagicDeletedSizeT = 0xCDCDCDCD | (((size_t)0xCDCDCDCD << 16) << 16); // Initializer works for 32 and 64 bit size_ts; // "<< 16 << 16" is to fool gcc from issuing a warning // when size_ts are 32 bits. // NOTE: on Linux, you can enable malloc debugging support in libc by // setting the environment variable MALLOC_CHECK_ to 1 before you // start the program (see man malloc). // We use either do_malloc or mmap to make the actual allocation. In // order to remember which one of the two was used for any block, we store an // appropriate magic word next to the block. static const int kMagicMalloc = 0xDEADBEEF; static const int kMagicMMap = 0xABCDEFAB; // This array will be filled with 0xCD, for use with memcmp. static unsigned char kMagicDeletedBuffer[1024]; static pthread_once_t deleted_buffer_initialized_; static bool deleted_buffer_initialized_no_pthreads_; private: // data layout // The four fields size1_,offset_,magic1_,alloc_type_ // should together occupy a multiple of 16 bytes. (At the // moment, sizeof(size_t) == 4 or 8 depending on piii vs // k8, and 4 of those sum to 16 or 32 bytes). // This, combined with do_malloc's alignment guarantees, // ensures that SSE types can be stored into the returned // block, at &size2_. size_t size1_; size_t offset_; // normally 0 unless memaligned memory // see comments in memalign() and FromRawPointer(). size_t magic1_; size_t alloc_type_; // here comes the actual data (variable length) // ... // then come the size2_ and magic2_, or a full page of mprotect-ed memory // if the malloc_page_fence feature is enabled. size_t size2_; int magic2_; private: // static data and helpers // Allocation map: stores the allocation type for each allocated object, // or the type or'ed with kDeallocatedTypeBit // for each formerly allocated object. typedef AddressMap AllocMap; static AllocMap* alloc_map_; // This protects alloc_map_ and consistent state of metadata // for each still-allocated object in it. // We use spin locks instead of pthread_mutex_t locks // to prevent crashes via calls to pthread_mutex_(un)lock // for the (de)allocations coming from pthreads initialization itself. static SpinLock alloc_map_lock_; // A queue of freed blocks. Instead of releasing blocks to the allocator // immediately, we put them in a queue, freeing them only when necessary // to keep the total size of all the freed blocks below the limit set by // FLAGS_max_free_queue_size. static FreeQueue* free_queue_; static size_t free_queue_size_; // total size of blocks in free_queue_ // protects free_queue_ and free_queue_size_ static SpinLock free_queue_lock_; // Names of allocation types (kMallocType, kNewType, kArrayNewType) static const char* const kAllocName[]; // Names of corresponding deallocation types static const char* const kDeallocName[]; static const char* AllocName(int type) { return kAllocName[type & kAllocTypeMask]; } static const char* DeallocName(int type) { return kDeallocName[type & kAllocTypeMask]; } private: // helper accessors bool IsMMapped() const { return kMagicMMap == magic1_; } bool IsValidMagicValue(int value) const { return kMagicMMap == value || kMagicMalloc == value; } static size_t real_malloced_size(size_t size) { return size + sizeof(MallocBlock); } /* * Here we assume size of page is kMinAlign aligned, * so if size is MALLOC_ALIGNMENT aligned too, then we could * guarantee return address is also kMinAlign aligned, because * mmap return address at nearby page boundary on Linux. */ static size_t real_mmapped_size(size_t size) { size_t tmp = size + MallocBlock::data_offset(); tmp = RoundUp(tmp, kMinAlign); return tmp; } size_t real_size() { return IsMMapped() ? real_mmapped_size(size1_) : real_malloced_size(size1_); } // NOTE: if the block is mmapped (that is, we're using the // malloc_page_fence option) then there's no size2 or magic2 // (instead, the guard page begins where size2 would be). size_t* size2_addr() { return (size_t*)((char*)&size2_ + size1_); } const size_t* size2_addr() const { return (const size_t*)((char*)&size2_ + size1_); } int* magic2_addr() { return (int*)(size2_addr() + 1); } const int* magic2_addr() const { return (const int*)(size2_addr() + 1); } private: // other helpers void Initialize(size_t size, int type) { RAW_CHECK(IsValidMagicValue(magic1_), ""); // record us as allocated in the map alloc_map_lock_.Lock(); if (!alloc_map_) { void* p = do_malloc(sizeof(AllocMap)); alloc_map_ = new(p) AllocMap(do_malloc, do_free); } alloc_map_->Insert(data_addr(), type); // initialize us size1_ = size; offset_ = 0; alloc_type_ = type; if (!IsMMapped()) { *magic2_addr() = magic1_; *size2_addr() = size; } alloc_map_lock_.Unlock(); memset(data_addr(), kMagicUninitializedByte, size); if (!IsMMapped()) { RAW_CHECK(size1_ == *size2_addr(), "should hold"); RAW_CHECK(magic1_ == *magic2_addr(), "should hold"); } } size_t CheckAndClear(int type) { alloc_map_lock_.Lock(); CheckLocked(type); if (!IsMMapped()) { RAW_CHECK(size1_ == *size2_addr(), "should hold"); } // record us as deallocated in the map alloc_map_->Insert(data_addr(), type | kDeallocatedTypeBit); alloc_map_lock_.Unlock(); // clear us const size_t size = real_size(); memset(this, kMagicDeletedByte, size); return size; } void CheckLocked(int type) const { int map_type = 0; const int* found_type = alloc_map_ != NULL ? alloc_map_->Find(data_addr()) : NULL; if (found_type == NULL) { RAW_LOG(FATAL, "memory allocation bug: object at %p " "has never been allocated", data_addr()); } else { map_type = *found_type; } if ((map_type & kDeallocatedTypeBit) != 0) { RAW_LOG(FATAL, "memory allocation bug: object at %p " "has been already deallocated (it was allocated with %s)", data_addr(), AllocName(map_type & ~kDeallocatedTypeBit)); } if (alloc_type_ == kMagicDeletedSizeT) { RAW_LOG(FATAL, "memory stomping bug: a word before object at %p " "has been corrupted; or else the object has been already " "deallocated and our memory map has been corrupted", data_addr()); } if (!IsValidMagicValue(magic1_)) { RAW_LOG(FATAL, "memory stomping bug: a word before object at %p " "has been corrupted; " "or else our memory map has been corrupted and this is a " "deallocation for not (currently) heap-allocated object", data_addr()); } if (!IsMMapped()) { if (size1_ != *size2_addr()) { RAW_LOG(FATAL, "memory stomping bug: a word after object at %p " "has been corrupted", data_addr()); } if (!IsValidMagicValue(*magic2_addr())) { RAW_LOG(FATAL, "memory stomping bug: a word after object at %p " "has been corrupted", data_addr()); } } if (alloc_type_ != type) { if ((alloc_type_ != MallocBlock::kMallocType) && (alloc_type_ != MallocBlock::kNewType) && (alloc_type_ != MallocBlock::kArrayNewType)) { RAW_LOG(FATAL, "memory stomping bug: a word before object at %p " "has been corrupted", data_addr()); } RAW_LOG(FATAL, "memory allocation/deallocation mismatch at %p: " "allocated with %s being deallocated with %s", data_addr(), AllocName(alloc_type_), DeallocName(type)); } if (alloc_type_ != map_type) { RAW_LOG(FATAL, "memory stomping bug: our memory map has been corrupted : " "allocation at %p made with %s " "is recorded in the map to be made with %s", data_addr(), AllocName(alloc_type_), AllocName(map_type)); } } public: // public accessors void* data_addr() { return (void*)&size2_; } const void* data_addr() const { return (const void*)&size2_; } static size_t data_offset() { return OFFSETOF_MEMBER(MallocBlock, size2_); } size_t data_size() const { return size1_; } void set_offset(int offset) { this->offset_ = offset; } public: // our main interface static MallocBlock* Allocate(size_t size, int type) { // Prevent an integer overflow / crash with large allocation sizes. // TODO - Note that for a e.g. 64-bit size_t, max_size_t may not actually // be the maximum value, depending on how the compiler treats ~0. The worst // practical effect is that allocations are limited to 4Gb or so, even if // the address space could take more. static size_t max_size_t = ~0; if (size > max_size_t - sizeof(MallocBlock)) { RAW_LOG(ERROR, "Massive size passed to malloc: %" PRIuS "", size); return NULL; } MallocBlock* b = NULL; const bool use_malloc_page_fence = FLAGS_malloc_page_fence; #ifdef HAVE_MMAP if (use_malloc_page_fence) { // Put the block towards the end of the page and make the next page // inaccessible. This will catch buffer overrun right when it happens. size_t sz = real_mmapped_size(size); int pagesize = getpagesize(); int num_pages = (sz + pagesize - 1) / pagesize + 1; char* p = (char*) mmap(NULL, num_pages * pagesize, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); if (p == MAP_FAILED) { // If the allocation fails, abort rather than returning NULL to // malloc. This is because in most cases, the program will run out // of memory in this mode due to tremendous amount of wastage. There // is no point in propagating the error elsewhere. RAW_LOG(FATAL, "Out of memory: possibly due to page fence overhead: %s", strerror(errno)); } // Mark the page after the block inaccessible if (mprotect(p + (num_pages - 1) * pagesize, pagesize, PROT_NONE)) { RAW_LOG(FATAL, "Guard page setup failed: %s", strerror(errno)); } b = (MallocBlock*) (p + (num_pages - 1) * pagesize - sz); } else { b = (MallocBlock*) do_malloc(real_malloced_size(size)); } #else b = (MallocBlock*) do_malloc(real_malloced_size(size)); #endif // It would be nice to output a diagnostic on allocation failure // here, but logging (other than FATAL) requires allocating // memory, which could trigger a nasty recursion. Instead, preserve // malloc semantics and return NULL on failure. if (b != NULL) { b->magic1_ = use_malloc_page_fence ? kMagicMMap : kMagicMalloc; b->Initialize(size, type); } return b; } void Deallocate(int type) { if (IsMMapped()) { // have to do this before CheckAndClear #ifdef HAVE_MMAP int size = CheckAndClear(type); int pagesize = getpagesize(); int num_pages = (size + pagesize - 1) / pagesize + 1; char* p = (char*) this; if (FLAGS_malloc_page_fence_never_reclaim || !FLAGS_malloc_reclaim_memory) { mprotect(p - (num_pages - 1) * pagesize + size, num_pages * pagesize, PROT_NONE); } else { munmap(p - (num_pages - 1) * pagesize + size, num_pages * pagesize); } #endif } else { const size_t size = CheckAndClear(type); if (FLAGS_malloc_reclaim_memory) { // Instead of freeing the block immediately, push it onto a queue of // recently freed blocks. Free only enough blocks to keep from // exceeding the capacity of the queue or causing the total amount of // un-released memory in the queue from exceeding // FLAGS_max_free_queue_size. ProcessFreeQueue(this, size, FLAGS_max_free_queue_size); } } } static size_t FreeQueueSize() { SpinLockHolder l(&free_queue_lock_); return free_queue_size_; } static void ProcessFreeQueue(MallocBlock* b, size_t size, int max_free_queue_size) { // MallocBlockQueueEntry are about 144 in size, so we can only // use a small array of them on the stack. MallocBlockQueueEntry entries[4]; int num_entries = 0; MallocBlockQueueEntry new_entry(b, size); free_queue_lock_.Lock(); if (free_queue_ == NULL) free_queue_ = new FreeQueue; RAW_CHECK(!free_queue_->Full(), "Free queue mustn't be full!"); if (b != NULL) { free_queue_size_ += size + sizeof(MallocBlockQueueEntry); free_queue_->Push(new_entry); } // Free blocks until the total size of unfreed blocks no longer exceeds // max_free_queue_size, and the free queue has at least one free // space in it. while (free_queue_size_ > max_free_queue_size || free_queue_->Full()) { RAW_CHECK(num_entries < arraysize(entries), "entries array overflow"); entries[num_entries] = free_queue_->Pop(); free_queue_size_ -= entries[num_entries].size + sizeof(MallocBlockQueueEntry); num_entries++; if (num_entries == arraysize(entries)) { // The queue will not be full at this point, so it is ok to // release the lock. The queue may still contain more than // max_free_queue_size, but this is not a strict invariant. free_queue_lock_.Unlock(); for (int i = 0; i < num_entries; i++) { CheckForDanglingWrites(entries[i]); do_free(entries[i].block); } num_entries = 0; free_queue_lock_.Lock(); } } RAW_CHECK(free_queue_size_ >= 0, "Free queue size went negative!"); free_queue_lock_.Unlock(); for (int i = 0; i < num_entries; i++) { CheckForDanglingWrites(entries[i]); do_free(entries[i].block); } } static void InitDeletedBuffer() { memset(kMagicDeletedBuffer, kMagicDeletedByte, sizeof(kMagicDeletedBuffer)); deleted_buffer_initialized_no_pthreads_ = true; } static void CheckForDanglingWrites(const MallocBlockQueueEntry& queue_entry) { // Initialize the buffer if necessary. if (pthread_once) pthread_once(&deleted_buffer_initialized_, &InitDeletedBuffer); if (!deleted_buffer_initialized_no_pthreads_) { // This will be the case on systems that don't link in pthreads, // including on FreeBSD where pthread_once has a non-zero address // (but doesn't do anything) even when pthreads isn't linked in. InitDeletedBuffer(); } const unsigned char* p = reinterpret_cast(queue_entry.block); static const size_t size_of_buffer = sizeof(kMagicDeletedBuffer); const size_t size = queue_entry.size; const size_t buffers = size / size_of_buffer; const size_t remainder = size % size_of_buffer; size_t buffer_idx; for (buffer_idx = 0; buffer_idx < buffers; ++buffer_idx) { CheckForCorruptedBuffer(queue_entry, buffer_idx, p, size_of_buffer); p += size_of_buffer; } CheckForCorruptedBuffer(queue_entry, buffer_idx, p, remainder); } static void CheckForCorruptedBuffer(const MallocBlockQueueEntry& queue_entry, size_t buffer_idx, const unsigned char* buffer, size_t size_of_buffer) { if (memcmp(buffer, kMagicDeletedBuffer, size_of_buffer) == 0) { return; } RAW_LOG(ERROR, "Found a corrupted memory buffer in MallocBlock (may be offset " "from user ptr): buffer index: %zd, buffer ptr: %p, size of " "buffer: %zd", buffer_idx, buffer, size_of_buffer); // The magic deleted buffer should only be 1024 bytes, but in case // this changes, let's put an upper limit on the number of debug // lines we'll output: if (size_of_buffer <= 1024) { for (int i = 0; i < size_of_buffer; ++i) { if (buffer[i] != kMagicDeletedByte) { RAW_LOG(ERROR, "Buffer byte %d is 0x%02x (should be 0x%02x).", i, buffer[i], kMagicDeletedByte); } } } else { RAW_LOG(ERROR, "Buffer too large to print corruption."); } const MallocBlock* b = queue_entry.block; const size_t size = queue_entry.size; if (queue_entry.num_deleter_pcs > 0) { TracePrintf(STDERR_FILENO, "Deleted by thread %p\n", reinterpret_cast( PRINTABLE_PTHREAD(queue_entry.deleter_threadid))); // We don't want to allocate or deallocate memory here, so we use // placement-new. It's ok that we don't destroy this, since we're // just going to error-exit below anyway. Union is for alignment. union { void* alignment; char buf[sizeof(SymbolTable)]; } tablebuf; SymbolTable* symbolization_table = new (tablebuf.buf) SymbolTable; for (int i = 0; i < queue_entry.num_deleter_pcs; i++) { // Symbolizes the previous address of pc because pc may be in the // next function. This may happen when the function ends with // a call to a function annotated noreturn (e.g. CHECK). char *pc = reinterpret_cast(queue_entry.deleter_pcs[i]); symbolization_table->Add(pc - 1); } if (FLAGS_symbolize_stacktrace) symbolization_table->Symbolize(); for (int i = 0; i < queue_entry.num_deleter_pcs; i++) { char *pc = reinterpret_cast(queue_entry.deleter_pcs[i]); TracePrintf(STDERR_FILENO, " @ %p %s\n", pc, symbolization_table->GetSymbol(pc - 1)); } } else { RAW_LOG(ERROR, "Skipping the printing of the deleter's stack! Its stack was " "not found; either the corruption occurred too early in " "execution to obtain a stack trace or --max_free_queue_size was " "set to 0."); } RAW_LOG(FATAL, "Memory was written to after being freed. MallocBlock: %p, user " "ptr: %p, size: %zd. If you can't find the source of the error, " "try using ASan (http://code.google.com/p/address-sanitizer/), " "Valgrind, or Purify, or study the " "output of the deleter's stack printed above.", b, b->data_addr(), size); } static MallocBlock* FromRawPointer(void* p) { const size_t data_offset = MallocBlock::data_offset(); // Find the header just before client's memory. MallocBlock *mb = reinterpret_cast( reinterpret_cast(p) - data_offset); // If mb->alloc_type_ is kMagicDeletedSizeT, we're not an ok pointer. if (mb->alloc_type_ == kMagicDeletedSizeT) { RAW_LOG(FATAL, "memory allocation bug: object at %p has been already" " deallocated; or else a word before the object has been" " corrupted (memory stomping bug)", p); } // If mb->offset_ is zero (common case), mb is the real header. // If mb->offset_ is non-zero, this block was allocated by debug // memallign implementation, and mb->offset_ is the distance // backwards to the real header from mb, which is a fake header. if (mb->offset_ == 0) { return mb; } MallocBlock *main_block = reinterpret_cast( reinterpret_cast(mb) - mb->offset_); if (main_block->offset_ != 0) { RAW_LOG(FATAL, "memory corruption bug: offset_ field is corrupted." " Need 0 but got %x", (unsigned)(main_block->offset_)); } if (main_block >= p) { RAW_LOG(FATAL, "memory corruption bug: offset_ field is corrupted." " Detected main_block address overflow: %x", (unsigned)(mb->offset_)); } if (main_block->size2_addr() < p) { RAW_LOG(FATAL, "memory corruption bug: offset_ field is corrupted." " It points below it's own main_block: %x", (unsigned)(mb->offset_)); } return main_block; } static const MallocBlock* FromRawPointer(const void* p) { // const-safe version: we just cast about return FromRawPointer(const_cast(p)); } void Check(int type) const { alloc_map_lock_.Lock(); CheckLocked(type); alloc_map_lock_.Unlock(); } static bool CheckEverything() { alloc_map_lock_.Lock(); if (alloc_map_ != NULL) alloc_map_->Iterate(CheckCallback, 0); alloc_map_lock_.Unlock(); return true; // if we get here, we're okay } static bool MemoryStats(int* blocks, size_t* total, int histogram[kMallocHistogramSize]) { memset(histogram, 0, kMallocHistogramSize * sizeof(int)); alloc_map_lock_.Lock(); stats_blocks_ = 0; stats_total_ = 0; stats_histogram_ = histogram; if (alloc_map_ != NULL) alloc_map_->Iterate(StatsCallback, 0); *blocks = stats_blocks_; *total = stats_total_; alloc_map_lock_.Unlock(); return true; } private: // helpers for CheckEverything and MemoryStats static void CheckCallback(const void* ptr, int* type, int dummy) { if ((*type & kDeallocatedTypeBit) == 0) { FromRawPointer(ptr)->CheckLocked(*type); } } // Accumulation variables for StatsCallback protected by alloc_map_lock_ static int stats_blocks_; static size_t stats_total_; static int* stats_histogram_; static void StatsCallback(const void* ptr, int* type, int dummy) { if ((*type & kDeallocatedTypeBit) == 0) { const MallocBlock* b = FromRawPointer(ptr); b->CheckLocked(*type); ++stats_blocks_; size_t mysize = b->size1_; int entry = 0; stats_total_ += mysize; while (mysize) { ++entry; mysize >>= 1; } RAW_CHECK(entry < kMallocHistogramSize, "kMallocHistogramSize should be at least as large as log2 " "of the maximum process memory size"); stats_histogram_[entry] += 1; } } }; void DanglingWriteChecker() { // Clear out the remaining free queue to check for dangling writes. MallocBlock::ProcessFreeQueue(NULL, 0, 0); } // ========================================================================= // const int MallocBlock::kMagicMalloc; const int MallocBlock::kMagicMMap; MallocBlock::AllocMap* MallocBlock::alloc_map_ = NULL; SpinLock MallocBlock::alloc_map_lock_(SpinLock::LINKER_INITIALIZED); FreeQueue* MallocBlock::free_queue_ = NULL; size_t MallocBlock::free_queue_size_ = 0; SpinLock MallocBlock::free_queue_lock_(SpinLock::LINKER_INITIALIZED); unsigned char MallocBlock::kMagicDeletedBuffer[1024]; pthread_once_t MallocBlock::deleted_buffer_initialized_ = PTHREAD_ONCE_INIT; bool MallocBlock::deleted_buffer_initialized_no_pthreads_ = false; const char* const MallocBlock::kAllocName[] = { "malloc", "new", "new []", NULL, }; const char* const MallocBlock::kDeallocName[] = { "free", "delete", "delete []", NULL, }; int MallocBlock::stats_blocks_; size_t MallocBlock::stats_total_; int* MallocBlock::stats_histogram_; // ========================================================================= // // The following cut-down version of printf() avoids // using stdio or ostreams. // This is to guarantee no recursive calls into // the allocator and to bound the stack space consumed. (The pthread // manager thread in linuxthreads has a very small stack, // so fprintf can't be called.) static void TracePrintf(int fd, const char *fmt, ...) { char buf[64]; int i = 0; va_list ap; va_start(ap, fmt); const char *p = fmt; char numbuf[25]; numbuf[sizeof(numbuf)-1] = 0; while (*p != '\0') { // until end of format string char *s = &numbuf[sizeof(numbuf)-1]; if (p[0] == '%' && p[1] != 0) { // handle % formats int64 l = 0; unsigned long base = 0; if (*++p == 's') { // %s s = va_arg(ap, char *); } else if (*p == 'l' && p[1] == 'd') { // %ld l = va_arg(ap, long); base = 10; p++; } else if (*p == 'l' && p[1] == 'u') { // %lu l = va_arg(ap, unsigned long); base = 10; p++; } else if (*p == 'z' && p[1] == 'u') { // %zu l = va_arg(ap, size_t); base = 10; p++; } else if (*p == 'u') { // %u l = va_arg(ap, unsigned int); base = 10; } else if (*p == 'd') { // %d l = va_arg(ap, int); base = 10; } else if (*p == 'p') { // %p l = va_arg(ap, intptr_t); base = 16; } else { write(STDERR_FILENO, "Unimplemented TracePrintf format\n", 33); write(STDERR_FILENO, p, 2); write(STDERR_FILENO, "\n", 1); abort(); } p++; if (base != 0) { bool minus = (l < 0 && base == 10); uint64 ul = minus? -l : l; do { *--s = "0123456789abcdef"[ul % base]; ul /= base; } while (ul != 0); if (base == 16) { *--s = 'x'; *--s = '0'; } else if (minus) { *--s = '-'; } } } else { // handle normal characters *--s = *p++; } while (*s != 0) { if (i == sizeof(buf)) { write(fd, buf, i); i = 0; } buf[i++] = *s++; } } if (i != 0) { write(fd, buf, i); } va_end(ap); } // Return the file descriptor we're writing a log to static int TraceFd() { static int trace_fd = -1; if (trace_fd == -1) { // Open the trace file on the first call trace_fd = open("/tmp/google.alloc", O_CREAT|O_TRUNC|O_WRONLY, 0666); if (trace_fd == -1) { trace_fd = 2; TracePrintf(trace_fd, "Can't open /tmp/google.alloc. Logging to stderr.\n"); } // Add a header to the log. TracePrintf(trace_fd, "Trace started: %lu\n", static_cast(time(NULL))); TracePrintf(trace_fd, "func\tsize\tptr\tthread_id\tstack pcs for tools/symbolize\n"); } return trace_fd; } // Print the hex stack dump on a single line. PCs are separated by tabs. static void TraceStack(void) { void *pcs[16]; int n = GetStackTrace(pcs, sizeof(pcs)/sizeof(pcs[0]), 0); for (int i = 0; i != n; i++) { TracePrintf(TraceFd(), "\t%p", pcs[i]); } } // This protects MALLOC_TRACE, to make sure its info is atomically written. static SpinLock malloc_trace_lock(SpinLock::LINKER_INITIALIZED); #define MALLOC_TRACE(name, size, addr) \ do { \ if (FLAGS_malloctrace) { \ SpinLockHolder l(&malloc_trace_lock); \ TracePrintf(TraceFd(), "%s\t%" PRIuS "\t%p\t%" GPRIuPTHREAD, \ name, size, addr, PRINTABLE_PTHREAD(pthread_self())); \ TraceStack(); \ TracePrintf(TraceFd(), "\n"); \ } \ } while (0) // ========================================================================= // // Write the characters buf[0, ..., size-1] to // the malloc trace buffer. // This function is intended for debugging, // and is not declared in any header file. // You must insert a declaration of it by hand when you need // to use it. void __malloctrace_write(const char *buf, size_t size) { if (FLAGS_malloctrace) { write(TraceFd(), buf, size); } } // ========================================================================= // // General debug allocation/deallocation static inline void* DebugAllocate(size_t size, int type) { MallocBlock* ptr = MallocBlock::Allocate(size, type); if (ptr == NULL) return NULL; MALLOC_TRACE("malloc", size, ptr->data_addr()); return ptr->data_addr(); } static inline void DebugDeallocate(void* ptr, int type) { MALLOC_TRACE("free", (ptr != 0 ? MallocBlock::FromRawPointer(ptr)->data_size() : 0), ptr); if (ptr) MallocBlock::FromRawPointer(ptr)->Deallocate(type); } // ========================================================================= // // The following functions may be called via MallocExtension::instance() // for memory verification and statistics. class DebugMallocImplementation : public TCMallocImplementation { public: virtual bool GetNumericProperty(const char* name, size_t* value) { bool result = TCMallocImplementation::GetNumericProperty(name, value); if (result && (strcmp(name, "generic.current_allocated_bytes") == 0)) { // Subtract bytes kept in the free queue size_t qsize = MallocBlock::FreeQueueSize(); if (*value >= qsize) { *value -= qsize; } } return result; } virtual bool VerifyNewMemory(const void* p) { if (p) MallocBlock::FromRawPointer(p)->Check(MallocBlock::kNewType); return true; } virtual bool VerifyArrayNewMemory(const void* p) { if (p) MallocBlock::FromRawPointer(p)->Check(MallocBlock::kArrayNewType); return true; } virtual bool VerifyMallocMemory(const void* p) { if (p) MallocBlock::FromRawPointer(p)->Check(MallocBlock::kMallocType); return true; } virtual bool VerifyAllMemory() { return MallocBlock::CheckEverything(); } virtual bool MallocMemoryStats(int* blocks, size_t* total, int histogram[kMallocHistogramSize]) { return MallocBlock::MemoryStats(blocks, total, histogram); } virtual size_t GetEstimatedAllocatedSize(size_t size) { return size; } virtual size_t GetAllocatedSize(const void* p) { if (p) { RAW_CHECK(GetOwnership(p) != MallocExtension::kNotOwned, "ptr not allocated by tcmalloc"); return MallocBlock::FromRawPointer(p)->data_size(); } return 0; } virtual MallocExtension::Ownership GetOwnership(const void* p) { if (!p) { // nobody owns NULL return MallocExtension::kNotOwned; } // FIXME: note that correct GetOwnership should not touch memory // that is not owned by tcmalloc. Main implementation is using // pagemap to discover if page in question is owned by us or // not. But pagemap only has marks for first and last page of // spans. Note that if p was returned out of our memalign with // big alignment, then it will point outside of marked pages. Also // note that FromRawPointer call below requires touching memory // before pointer in order to handle memalign-ed chunks // (offset_). This leaves us with two options: // // * do FromRawPointer first and have possibility of crashing if // we're given not owned pointer // // * return incorrect ownership for those large memalign chunks // // I've decided to choose later, which appears to happen rarer and // therefore is arguably a lesser evil MallocExtension::Ownership rv = TCMallocImplementation::GetOwnership(p); if (rv != MallocExtension::kOwned) { return rv; } const MallocBlock* mb = MallocBlock::FromRawPointer(p); return TCMallocImplementation::GetOwnership(mb); } virtual void GetFreeListSizes(vector* v) { static const char* kDebugFreeQueue = "debug.free_queue"; TCMallocImplementation::GetFreeListSizes(v); MallocExtension::FreeListInfo i; i.type = kDebugFreeQueue; i.min_object_size = 0; i.max_object_size = numeric_limits::max(); i.total_bytes_free = MallocBlock::FreeQueueSize(); v->push_back(i); } }; static union { char chars[sizeof(DebugMallocImplementation)]; void *ptr; } debug_malloc_implementation_space; REGISTER_MODULE_INITIALIZER(debugallocation, { #if (__cplusplus >= 201103L) COMPILE_ASSERT(alignof(debug_malloc_implementation_space) >= alignof(DebugMallocImplementation), debug_malloc_implementation_space_is_not_properly_aligned); #endif // Either we or valgrind will control memory management. We // register our extension if we're the winner. Otherwise let // Valgrind use its own malloc (so don't register our extension). if (!RunningOnValgrind()) { DebugMallocImplementation *impl = new (debug_malloc_implementation_space.chars) DebugMallocImplementation(); MallocExtension::Register(impl); } }); REGISTER_MODULE_DESTRUCTOR(debugallocation, { if (!RunningOnValgrind()) { // When the program exits, check all blocks still in the free // queue for corruption. DanglingWriteChecker(); } }); // ========================================================================= // // This is mostly the same a cpp_alloc in tcmalloc.cc. // TODO(csilvers): change Allocate() above to call cpp_alloc, so we // don't have to reproduce the logic here. To make tc_new_mode work // properly, I think we'll need to separate out the logic of throwing // from the logic of calling the new-handler. inline void* debug_cpp_alloc(size_t size, int new_type, bool nothrow) { for (;;) { void* p = DebugAllocate(size, new_type); #ifdef PREANSINEW return p; #else if (p == NULL) { // allocation failed // Get the current new handler. NB: this function is not // thread-safe. We make a feeble stab at making it so here, but // this lock only protects against tcmalloc interfering with // itself, not with other libraries calling set_new_handler. std::new_handler nh; { SpinLockHolder h(&set_new_handler_lock); nh = std::set_new_handler(0); (void) std::set_new_handler(nh); } #if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) if (nh) { // Since exceptions are disabled, we don't really know if new_handler // failed. Assume it will abort if it fails. (*nh)(); continue; } return 0; #else // If no new_handler is established, the allocation failed. if (!nh) { if (nothrow) return 0; throw std::bad_alloc(); } // Otherwise, try the new_handler. If it returns, retry the // allocation. If it throws std::bad_alloc, fail the allocation. // if it throws something else, don't interfere. try { (*nh)(); } catch (const std::bad_alloc&) { if (!nothrow) throw; return p; } #endif // (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) } else { // allocation success return p; } #endif // PREANSINEW } } inline void* do_debug_malloc_or_debug_cpp_alloc(size_t size) { return tc_new_mode ? debug_cpp_alloc(size, MallocBlock::kMallocType, true) : DebugAllocate(size, MallocBlock::kMallocType); } // Exported routines extern "C" PERFTOOLS_DLL_DECL void* tc_malloc(size_t size) __THROW { void* ptr = do_debug_malloc_or_debug_cpp_alloc(size); MallocHook::InvokeNewHook(ptr, size); return ptr; } extern "C" PERFTOOLS_DLL_DECL void tc_free(void* ptr) __THROW { MallocHook::InvokeDeleteHook(ptr); DebugDeallocate(ptr, MallocBlock::kMallocType); } extern "C" PERFTOOLS_DLL_DECL void* tc_calloc(size_t count, size_t size) __THROW { // Overflow check const size_t total_size = count * size; if (size != 0 && total_size / size != count) return NULL; void* block = do_debug_malloc_or_debug_cpp_alloc(total_size); MallocHook::InvokeNewHook(block, total_size); if (block) memset(block, 0, total_size); return block; } extern "C" PERFTOOLS_DLL_DECL void tc_cfree(void* ptr) __THROW { MallocHook::InvokeDeleteHook(ptr); DebugDeallocate(ptr, MallocBlock::kMallocType); } extern "C" PERFTOOLS_DLL_DECL void* tc_realloc(void* ptr, size_t size) __THROW { if (ptr == NULL) { ptr = do_debug_malloc_or_debug_cpp_alloc(size); MallocHook::InvokeNewHook(ptr, size); return ptr; } if (size == 0) { MallocHook::InvokeDeleteHook(ptr); DebugDeallocate(ptr, MallocBlock::kMallocType); return NULL; } MallocBlock* old = MallocBlock::FromRawPointer(ptr); old->Check(MallocBlock::kMallocType); MallocBlock* p = MallocBlock::Allocate(size, MallocBlock::kMallocType); // If realloc fails we are to leave the old block untouched and // return null if (p == NULL) return NULL; // if ptr was allocated via memalign, then old->data_size() is not // start of user data. So we must be careful to copy only user-data char *old_begin = (char *)old->data_addr(); char *old_end = old_begin + old->data_size(); ssize_t old_ssize = old_end - (char *)ptr; CHECK_CONDITION(old_ssize >= 0); size_t old_size = (size_t)old_ssize; CHECK_CONDITION(old_size <= old->data_size()); memcpy(p->data_addr(), ptr, (old_size < size) ? old_size : size); MallocHook::InvokeDeleteHook(ptr); MallocHook::InvokeNewHook(p->data_addr(), size); DebugDeallocate(ptr, MallocBlock::kMallocType); MALLOC_TRACE("realloc", p->data_size(), p->data_addr()); return p->data_addr(); } extern "C" PERFTOOLS_DLL_DECL void* tc_new(size_t size) { void* ptr = debug_cpp_alloc(size, MallocBlock::kNewType, false); MallocHook::InvokeNewHook(ptr, size); if (ptr == NULL) { RAW_LOG(FATAL, "Unable to allocate %" PRIuS " bytes: new failed.", size); } return ptr; } extern "C" PERFTOOLS_DLL_DECL void* tc_new_nothrow(size_t size, const std::nothrow_t&) __THROW { void* ptr = debug_cpp_alloc(size, MallocBlock::kNewType, true); MallocHook::InvokeNewHook(ptr, size); return ptr; } extern "C" PERFTOOLS_DLL_DECL void tc_delete(void* p) __THROW { MallocHook::InvokeDeleteHook(p); DebugDeallocate(p, MallocBlock::kNewType); } // Some STL implementations explicitly invoke this. // It is completely equivalent to a normal delete (delete never throws). extern "C" PERFTOOLS_DLL_DECL void tc_delete_nothrow(void* p, const std::nothrow_t&) __THROW { MallocHook::InvokeDeleteHook(p); DebugDeallocate(p, MallocBlock::kNewType); } extern "C" PERFTOOLS_DLL_DECL void* tc_newarray(size_t size) { void* ptr = debug_cpp_alloc(size, MallocBlock::kArrayNewType, false); MallocHook::InvokeNewHook(ptr, size); if (ptr == NULL) { RAW_LOG(FATAL, "Unable to allocate %" PRIuS " bytes: new[] failed.", size); } return ptr; } extern "C" PERFTOOLS_DLL_DECL void* tc_newarray_nothrow(size_t size, const std::nothrow_t&) __THROW { void* ptr = debug_cpp_alloc(size, MallocBlock::kArrayNewType, true); MallocHook::InvokeNewHook(ptr, size); return ptr; } extern "C" PERFTOOLS_DLL_DECL void tc_deletearray(void* p) __THROW { MallocHook::InvokeDeleteHook(p); DebugDeallocate(p, MallocBlock::kArrayNewType); } // Some STL implementations explicitly invoke this. // It is completely equivalent to a normal delete (delete never throws). extern "C" PERFTOOLS_DLL_DECL void tc_deletearray_nothrow(void* p, const std::nothrow_t&) __THROW { MallocHook::InvokeDeleteHook(p); DebugDeallocate(p, MallocBlock::kArrayNewType); } // This is mostly the same as do_memalign in tcmalloc.cc. static void *do_debug_memalign(size_t alignment, size_t size) { // Allocate >= size bytes aligned on "alignment" boundary // "alignment" is a power of two. void *p = 0; RAW_CHECK((alignment & (alignment-1)) == 0, "must be power of two"); const size_t data_offset = MallocBlock::data_offset(); // Allocate "alignment-1" extra bytes to ensure alignment is possible, and // a further data_offset bytes for an additional fake header. size_t extra_bytes = data_offset + alignment - 1; if (size + extra_bytes < size) return NULL; // Overflow p = DebugAllocate(size + extra_bytes, MallocBlock::kMallocType); if (p != 0) { intptr_t orig_p = reinterpret_cast(p); // Leave data_offset bytes for fake header, and round up to meet // alignment. p = reinterpret_cast(RoundUp(orig_p + data_offset, alignment)); // Create a fake header block with an offset_ that points back to the // real header. FromRawPointer uses this value. MallocBlock *fake_hdr = reinterpret_cast( reinterpret_cast(p) - data_offset); // offset_ is distance between real and fake headers. // p is now end of fake header (beginning of client area), // and orig_p is the end of the real header, so offset_ // is their difference. // // Note that other fields of fake_hdr are initialized with // kMagicUninitializedByte fake_hdr->set_offset(reinterpret_cast(p) - orig_p); } return p; } // This is mostly the same as cpp_memalign in tcmalloc.cc. static void* debug_cpp_memalign(size_t align, size_t size) { for (;;) { void* p = do_debug_memalign(align, size); #ifdef PREANSINEW return p; #else if (p == NULL) { // allocation failed // Get the current new handler. NB: this function is not // thread-safe. We make a feeble stab at making it so here, but // this lock only protects against tcmalloc interfering with // itself, not with other libraries calling set_new_handler. std::new_handler nh; { SpinLockHolder h(&set_new_handler_lock); nh = std::set_new_handler(0); (void) std::set_new_handler(nh); } #if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) if (nh) { // Since exceptions are disabled, we don't really know if new_handler // failed. Assume it will abort if it fails. (*nh)(); continue; } return 0; #else // If no new_handler is established, the allocation failed. if (!nh) return 0; // Otherwise, try the new_handler. If it returns, retry the // allocation. If it throws std::bad_alloc, fail the allocation. // if it throws something else, don't interfere. try { (*nh)(); } catch (const std::bad_alloc&) { return p; } #endif // (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS) } else { // allocation success return p; } #endif // PREANSINEW } } inline void* do_debug_memalign_or_debug_cpp_memalign(size_t align, size_t size) { return tc_new_mode ? debug_cpp_memalign(align, size) : do_debug_memalign(align, size); } extern "C" PERFTOOLS_DLL_DECL void* tc_memalign(size_t align, size_t size) __THROW { void *p = do_debug_memalign_or_debug_cpp_memalign(align, size); MallocHook::InvokeNewHook(p, size); return p; } // Implementation taken from tcmalloc/tcmalloc.cc extern "C" PERFTOOLS_DLL_DECL int tc_posix_memalign(void** result_ptr, size_t align, size_t size) __THROW { if (((align % sizeof(void*)) != 0) || ((align & (align - 1)) != 0) || (align == 0)) { return EINVAL; } void* result = do_debug_memalign_or_debug_cpp_memalign(align, size); MallocHook::InvokeNewHook(result, size); if (result == NULL) { return ENOMEM; } else { *result_ptr = result; return 0; } } extern "C" PERFTOOLS_DLL_DECL void* tc_valloc(size_t size) __THROW { // Allocate >= size bytes starting on a page boundary void *p = do_debug_memalign_or_debug_cpp_memalign(getpagesize(), size); MallocHook::InvokeNewHook(p, size); return p; } extern "C" PERFTOOLS_DLL_DECL void* tc_pvalloc(size_t size) __THROW { // Round size up to a multiple of pages // then allocate memory on a page boundary int pagesize = getpagesize(); size = RoundUp(size, pagesize); if (size == 0) { // pvalloc(0) should allocate one page, according to size = pagesize; // http://man.free4web.biz/man3/libmpatrol.3.html } void *p = do_debug_memalign_or_debug_cpp_memalign(pagesize, size); MallocHook::InvokeNewHook(p, size); return p; } // malloc_stats just falls through to the base implementation. extern "C" PERFTOOLS_DLL_DECL void tc_malloc_stats(void) __THROW { do_malloc_stats(); } extern "C" PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) __THROW { return do_mallopt(cmd, value); } #ifdef HAVE_STRUCT_MALLINFO extern "C" PERFTOOLS_DLL_DECL struct mallinfo tc_mallinfo(void) __THROW { return do_mallinfo(); } #endif extern "C" PERFTOOLS_DLL_DECL size_t tc_malloc_size(void* ptr) __THROW { return MallocExtension::instance()->GetAllocatedSize(ptr); } extern "C" PERFTOOLS_DLL_DECL void* tc_malloc_skip_new_handler(size_t size) __THROW { void* result = DebugAllocate(size, MallocBlock::kMallocType); MallocHook::InvokeNewHook(result, size); return result; } gperftools-2.4/src/common.cc0000644000000000000000000002326612440704174013034 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include // for getenv and strtol #include "config.h" #include "common.h" #include "system-alloc.h" #include "base/spinlock.h" #include "getenv_safe.h" // TCMallocGetenvSafe namespace tcmalloc { // Define the maximum number of object per classe type to transfer between // thread and central caches. static int32 FLAGS_tcmalloc_transfer_num_objects; static const int32 kDefaultTransferNumObjecs = 32768; // The init function is provided to explicit initialize the variable value // from the env. var to avoid C++ global construction that might defer its // initialization after a malloc/new call. static inline void InitTCMallocTransferNumObjects() { if (UNLIKELY(FLAGS_tcmalloc_transfer_num_objects == 0)) { const char *envval = TCMallocGetenvSafe("TCMALLOC_TRANSFER_NUM_OBJ"); FLAGS_tcmalloc_transfer_num_objects = !envval ? kDefaultTransferNumObjecs : strtol(envval, NULL, 10); } } // Note: the following only works for "n"s that fit in 32-bits, but // that is fine since we only use it for small sizes. static inline int LgFloor(size_t n) { int log = 0; for (int i = 4; i >= 0; --i) { int shift = (1 << i); size_t x = n >> shift; if (x != 0) { n = x; log += shift; } } ASSERT(n == 1); return log; } int AlignmentForSize(size_t size) { int alignment = kAlignment; if (size > kMaxSize) { // Cap alignment at kPageSize for large sizes. alignment = kPageSize; } else if (size >= 128) { // Space wasted due to alignment is at most 1/8, i.e., 12.5%. alignment = (1 << LgFloor(size)) / 8; } else if (size >= kMinAlign) { // We need an alignment of at least 16 bytes to satisfy // requirements for some SSE types. alignment = kMinAlign; } // Maximum alignment allowed is page size alignment. if (alignment > kPageSize) { alignment = kPageSize; } CHECK_CONDITION(size < kMinAlign || alignment >= kMinAlign); CHECK_CONDITION((alignment & (alignment - 1)) == 0); return alignment; } int SizeMap::NumMoveSize(size_t size) { if (size == 0) return 0; // Use approx 64k transfers between thread and central caches. int num = static_cast(64.0 * 1024.0 / size); if (num < 2) num = 2; // Avoid bringing too many objects into small object free lists. // If this value is too large: // - We waste memory with extra objects sitting in the thread caches. // - The central freelist holds its lock for too long while // building a linked list of objects, slowing down the allocations // of other threads. // If this value is too small: // - We go to the central freelist too often and we have to acquire // its lock each time. // This value strikes a balance between the constraints above. if (num > FLAGS_tcmalloc_transfer_num_objects) num = FLAGS_tcmalloc_transfer_num_objects; return num; } // Initialize the mapping arrays void SizeMap::Init() { InitTCMallocTransferNumObjects(); // Do some sanity checking on add_amount[]/shift_amount[]/class_array[] if (ClassIndex(0) != 0) { Log(kCrash, __FILE__, __LINE__, "Invalid class index for size 0", ClassIndex(0)); } if (ClassIndex(kMaxSize) >= sizeof(class_array_)) { Log(kCrash, __FILE__, __LINE__, "Invalid class index for kMaxSize", ClassIndex(kMaxSize)); } // Compute the size classes we want to use int sc = 1; // Next size class to assign int alignment = kAlignment; CHECK_CONDITION(kAlignment <= kMinAlign); for (size_t size = kAlignment; size <= kMaxSize; size += alignment) { alignment = AlignmentForSize(size); CHECK_CONDITION((size % alignment) == 0); int blocks_to_move = NumMoveSize(size) / 4; size_t psize = 0; do { psize += kPageSize; // Allocate enough pages so leftover is less than 1/8 of total. // This bounds wasted space to at most 12.5%. while ((psize % size) > (psize >> 3)) { psize += kPageSize; } // Continue to add pages until there are at least as many objects in // the span as are needed when moving objects from the central // freelists and spans to the thread caches. } while ((psize / size) < (blocks_to_move)); const size_t my_pages = psize >> kPageShift; if (sc > 1 && my_pages == class_to_pages_[sc-1]) { // See if we can merge this into the previous class without // increasing the fragmentation of the previous class. const size_t my_objects = (my_pages << kPageShift) / size; const size_t prev_objects = (class_to_pages_[sc-1] << kPageShift) / class_to_size_[sc-1]; if (my_objects == prev_objects) { // Adjust last class to include this size class_to_size_[sc-1] = size; continue; } } // Add new class class_to_pages_[sc] = my_pages; class_to_size_[sc] = size; sc++; } if (sc != kNumClasses) { Log(kCrash, __FILE__, __LINE__, "wrong number of size classes: (found vs. expected )", sc, kNumClasses); } // Initialize the mapping arrays int next_size = 0; for (int c = 1; c < kNumClasses; c++) { const int max_size_in_class = class_to_size_[c]; for (int s = next_size; s <= max_size_in_class; s += kAlignment) { class_array_[ClassIndex(s)] = c; } next_size = max_size_in_class + kAlignment; } // Double-check sizes just to be safe for (size_t size = 0; size <= kMaxSize;) { const int sc = SizeClass(size); if (sc <= 0 || sc >= kNumClasses) { Log(kCrash, __FILE__, __LINE__, "Bad size class (class, size)", sc, size); } if (sc > 1 && size <= class_to_size_[sc-1]) { Log(kCrash, __FILE__, __LINE__, "Allocating unnecessarily large class (class, size)", sc, size); } const size_t s = class_to_size_[sc]; if (size > s || s == 0) { Log(kCrash, __FILE__, __LINE__, "Bad (class, size, requested)", sc, s, size); } if (size <= kMaxSmallSize) { size += 8; } else { size += 128; } } // Initialize the num_objects_to_move array. for (size_t cl = 1; cl < kNumClasses; ++cl) { num_objects_to_move_[cl] = NumMoveSize(ByteSizeForClass(cl)); } } // Metadata allocator -- keeps stats about how many bytes allocated. static uint64_t metadata_system_bytes_ = 0; static const size_t kMetadataAllocChunkSize = 8*1024*1024; static const size_t kMetadataBigAllocThreshold = kMetadataAllocChunkSize / 8; // usually malloc uses larger alignments, but because metadata cannot // have and fancy simd types, aligning on pointer size seems fine static const size_t kMetadataAllignment = sizeof(void *); static char *metadata_chunk_alloc_; static size_t metadata_chunk_avail_; static SpinLock metadata_alloc_lock(SpinLock::LINKER_INITIALIZED); void* MetaDataAlloc(size_t bytes) { if (bytes >= kMetadataAllocChunkSize) { void *rv = TCMalloc_SystemAlloc(bytes, NULL, kMetadataAllignment); if (rv != NULL) { metadata_system_bytes_ += bytes; } return rv; } SpinLockHolder h(&metadata_alloc_lock); // the following works by essentially turning address to integer of // log_2 kMetadataAllignment size and negating it. I.e. negated // value + original value gets 0 and that's what we want modulo // kMetadataAllignment. Note, we negate before masking higher bits // off, otherwise we'd have to mask them off after negation anyways. intptr_t alignment = -reinterpret_cast(metadata_chunk_alloc_) & (kMetadataAllignment-1); if (metadata_chunk_avail_ < bytes + alignment) { size_t real_size; void *ptr = TCMalloc_SystemAlloc(kMetadataAllocChunkSize, &real_size, kMetadataAllignment); if (ptr == NULL) { return NULL; } metadata_chunk_alloc_ = static_cast(ptr); metadata_chunk_avail_ = real_size; alignment = 0; } void *rv = static_cast(metadata_chunk_alloc_ + alignment); bytes += alignment; metadata_chunk_alloc_ += bytes; metadata_chunk_avail_ -= bytes; metadata_system_bytes_ += bytes; return rv; } uint64_t metadata_system_bytes() { return metadata_system_bytes_; } } // namespace tcmalloc gperftools-2.4/src/internal_logging.cc0000644000000000000000000001335112440704174015060 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Sanjay Ghemawat #include #include "internal_logging.h" #include // for va_end, va_start #include // for vsnprintf, va_list, etc #include // for abort #include // for strlen, memcpy #ifdef HAVE_UNISTD_H #include // for write() #endif #include #include "base/logging.h" // for perftools_vsnprintf #include "base/spinlock.h" // for SpinLockHolder, SpinLock static const int kLogBufSize = 800; // Variables for storing crash output. Allocated statically since we // may not be able to heap-allocate while crashing. static SpinLock crash_lock(base::LINKER_INITIALIZED); static bool crashed = false; static const int kStatsBufferSize = 16 << 10; static char stats_buffer[kStatsBufferSize] = { 0 }; namespace tcmalloc { static void WriteMessage(const char* msg, int length) { write(STDERR_FILENO, msg, length); } void (*log_message_writer)(const char* msg, int length) = WriteMessage; class Logger { public: bool Add(const LogItem& item); bool AddStr(const char* str, int n); bool AddNum(uint64_t num, int base); // base must be 10 or 16. static const int kBufSize = 200; char* p_; char* end_; char buf_[kBufSize]; }; void Log(LogMode mode, const char* filename, int line, LogItem a, LogItem b, LogItem c, LogItem d) { Logger state; state.p_ = state.buf_; state.end_ = state.buf_ + sizeof(state.buf_); state.AddStr(filename, strlen(filename)) && state.AddStr(":", 1) && state.AddNum(line, 10) && state.AddStr("]", 1) && state.Add(a) && state.Add(b) && state.Add(c) && state.Add(d); // Teminate with newline if (state.p_ >= state.end_) { state.p_ = state.end_ - 1; } *state.p_ = '\n'; state.p_++; int msglen = state.p_ - state.buf_; if (mode == kLog) { (*log_message_writer)(state.buf_, msglen); return; } bool first_crash = false; { SpinLockHolder l(&crash_lock); if (!crashed) { crashed = true; first_crash = true; } } (*log_message_writer)(state.buf_, msglen); if (first_crash && mode == kCrashWithStats) { MallocExtension::instance()->GetStats(stats_buffer, kStatsBufferSize); (*log_message_writer)(stats_buffer, strlen(stats_buffer)); } abort(); } bool Logger::Add(const LogItem& item) { // Separate items with spaces if (p_ < end_) { *p_ = ' '; p_++; } switch (item.tag_) { case LogItem::kStr: return AddStr(item.u_.str, strlen(item.u_.str)); case LogItem::kUnsigned: return AddNum(item.u_.unum, 10); case LogItem::kSigned: if (item.u_.snum < 0) { // The cast to uint64_t is intentionally before the negation // so that we do not attempt to negate -2^63. return AddStr("-", 1) && AddNum(- static_cast(item.u_.snum), 10); } else { return AddNum(static_cast(item.u_.snum), 10); } case LogItem::kPtr: return AddStr("0x", 2) && AddNum(reinterpret_cast(item.u_.ptr), 16); default: return false; } } bool Logger::AddStr(const char* str, int n) { if (end_ - p_ < n) { return false; } else { memcpy(p_, str, n); p_ += n; return true; } } bool Logger::AddNum(uint64_t num, int base) { static const char kDigits[] = "0123456789abcdef"; char space[22]; // more than enough for 2^64 in smallest supported base (10) char* end = space + sizeof(space); char* pos = end; do { pos--; *pos = kDigits[num % base]; num /= base; } while (num > 0 && pos > space); return AddStr(pos, end - pos); } } // end tcmalloc namespace void TCMalloc_Printer::printf(const char* format, ...) { if (left_ > 0) { va_list ap; va_start(ap, format); const int r = perftools_vsnprintf(buf_, left_, format, ap); va_end(ap); if (r < 0) { // Perhaps an old glibc that returns -1 on truncation? left_ = 0; } else if (r > left_) { // Truncation left_ = 0; } else { left_ -= r; buf_ += r; } } } gperftools-2.4/src/system-alloc.cc0000755000000000000000000004422312440704174014157 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include #include // for EAGAIN, errno #include // for open, O_RDWR #include // for size_t, NULL, ptrdiff_t #if defined HAVE_STDINT_H #include // for uintptr_t, intptr_t #elif defined HAVE_INTTYPES_H #include #else #include #endif #ifdef HAVE_MMAP #include // for munmap, mmap, MADV_DONTNEED, etc #endif #ifdef HAVE_UNISTD_H #include // for sbrk, getpagesize, off_t #endif #include // for operator new #include #include "base/basictypes.h" #include "base/commandlineflags.h" #include "base/spinlock.h" // for SpinLockHolder, SpinLock, etc #include "common.h" #include "internal_logging.h" // On systems (like freebsd) that don't define MAP_ANONYMOUS, use the old // form of the name instead. #ifndef MAP_ANONYMOUS # define MAP_ANONYMOUS MAP_ANON #endif // MADV_FREE is specifically designed for use by malloc(), but only // FreeBSD supports it; in linux we fall back to the somewhat inferior // MADV_DONTNEED. #if !defined(MADV_FREE) && defined(MADV_DONTNEED) # define MADV_FREE MADV_DONTNEED #endif // Solaris has a bug where it doesn't declare madvise() for C++. // http://www.opensolaris.org/jive/thread.jspa?threadID=21035&tstart=0 #if defined(__sun) && defined(__SVR4) # include // for caddr_t extern "C" { extern int madvise(caddr_t, size_t, int); } #endif // Set kDebugMode mode so that we can have use C++ conditionals // instead of preprocessor conditionals. #ifdef NDEBUG static const bool kDebugMode = false; #else static const bool kDebugMode = true; #endif // TODO(sanjay): Move the code below into the tcmalloc namespace using tcmalloc::kLog; using tcmalloc::Log; // Anonymous namespace to avoid name conflicts on "CheckAddressBits". namespace { // Check that no bit is set at position ADDRESS_BITS or higher. template bool CheckAddressBits(uintptr_t ptr) { return (ptr >> ADDRESS_BITS) == 0; } // Specialize for the bit width of a pointer to avoid undefined shift. template <> bool CheckAddressBits<8 * sizeof(void*)>(uintptr_t ptr) { return true; } } // Anonymous namespace to avoid name conflicts on "CheckAddressBits". COMPILE_ASSERT(kAddressBits <= 8 * sizeof(void*), address_bits_larger_than_pointer_size); // Structure for discovering alignment union MemoryAligner { void* p; double d; size_t s; } CACHELINE_ALIGNED; static SpinLock spinlock(SpinLock::LINKER_INITIALIZED); #if defined(HAVE_MMAP) || defined(MADV_FREE) // Page size is initialized on demand (only needed for mmap-based allocators) static size_t pagesize = 0; #endif // The current system allocator SysAllocator* sys_alloc = NULL; // Number of bytes taken from system. size_t TCMalloc_SystemTaken = 0; // Configuration parameters. DEFINE_int32(malloc_devmem_start, EnvToInt("TCMALLOC_DEVMEM_START", 0), "Physical memory starting location in MB for /dev/mem allocation." " Setting this to 0 disables /dev/mem allocation"); DEFINE_int32(malloc_devmem_limit, EnvToInt("TCMALLOC_DEVMEM_LIMIT", 0), "Physical memory limit location in MB for /dev/mem allocation." " Setting this to 0 means no limit."); DEFINE_bool(malloc_skip_sbrk, EnvToBool("TCMALLOC_SKIP_SBRK", false), "Whether sbrk can be used to obtain memory."); DEFINE_bool(malloc_skip_mmap, EnvToBool("TCMALLOC_SKIP_MMAP", false), "Whether mmap can be used to obtain memory."); DEFINE_bool(malloc_disable_memory_release, EnvToBool("TCMALLOC_DISABLE_MEMORY_RELEASE", false), "Whether MADV_FREE/MADV_DONTNEED should be used" " to return unused memory to the system."); // static allocators class SbrkSysAllocator : public SysAllocator { public: SbrkSysAllocator() : SysAllocator() { } void* Alloc(size_t size, size_t *actual_size, size_t alignment); }; static char sbrk_space[sizeof(SbrkSysAllocator)]; class MmapSysAllocator : public SysAllocator { public: MmapSysAllocator() : SysAllocator() { } void* Alloc(size_t size, size_t *actual_size, size_t alignment); }; static char mmap_space[sizeof(MmapSysAllocator)]; class DevMemSysAllocator : public SysAllocator { public: DevMemSysAllocator() : SysAllocator() { } void* Alloc(size_t size, size_t *actual_size, size_t alignment); }; class DefaultSysAllocator : public SysAllocator { public: DefaultSysAllocator() : SysAllocator() { for (int i = 0; i < kMaxAllocators; i++) { failed_[i] = true; allocs_[i] = NULL; names_[i] = NULL; } } void SetChildAllocator(SysAllocator* alloc, unsigned int index, const char* name) { if (index < kMaxAllocators && alloc != NULL) { allocs_[index] = alloc; failed_[index] = false; names_[index] = name; } } void* Alloc(size_t size, size_t *actual_size, size_t alignment); private: static const int kMaxAllocators = 2; bool failed_[kMaxAllocators]; SysAllocator* allocs_[kMaxAllocators]; const char* names_[kMaxAllocators]; }; static char default_space[sizeof(DefaultSysAllocator)]; static const char sbrk_name[] = "SbrkSysAllocator"; static const char mmap_name[] = "MmapSysAllocator"; void* SbrkSysAllocator::Alloc(size_t size, size_t *actual_size, size_t alignment) { #if !defined(HAVE_SBRK) || defined(__UCLIBC__) return NULL; #else // Check if we should use sbrk allocation. // FLAGS_malloc_skip_sbrk starts out as false (its uninitialized // state) and eventually gets initialized to the specified value. Note // that this code runs for a while before the flags are initialized. // That means that even if this flag is set to true, some (initial) // memory will be allocated with sbrk before the flag takes effect. if (FLAGS_malloc_skip_sbrk) { return NULL; } // sbrk will release memory if passed a negative number, so we do // a strict check here if (static_cast(size + alignment) < 0) return NULL; // This doesn't overflow because TCMalloc_SystemAlloc has already // tested for overflow at the alignment boundary. size = ((size + alignment - 1) / alignment) * alignment; // "actual_size" indicates that the bytes from the returned pointer // p up to and including (p + actual_size - 1) have been allocated. if (actual_size) { *actual_size = size; } // Check that we we're not asking for so much more memory that we'd // wrap around the end of the virtual address space. (This seems // like something sbrk() should check for us, and indeed opensolaris // does, but glibc does not: // http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/sys/sbrk.c?a=true // http://sourceware.org/cgi-bin/cvsweb.cgi/~checkout~/libc/misc/sbrk.c?rev=1.1.2.1&content-type=text/plain&cvsroot=glibc // Without this check, sbrk may succeed when it ought to fail.) if (reinterpret_cast(sbrk(0)) + size < size) { return NULL; } void* result = sbrk(size); if (result == reinterpret_cast(-1)) { return NULL; } // Is it aligned? uintptr_t ptr = reinterpret_cast(result); if ((ptr & (alignment-1)) == 0) return result; // Try to get more memory for alignment size_t extra = alignment - (ptr & (alignment-1)); void* r2 = sbrk(extra); if (reinterpret_cast(r2) == (ptr + size)) { // Contiguous with previous result return reinterpret_cast(ptr + extra); } // Give up and ask for "size + alignment - 1" bytes so // that we can find an aligned region within it. result = sbrk(size + alignment - 1); if (result == reinterpret_cast(-1)) { return NULL; } ptr = reinterpret_cast(result); if ((ptr & (alignment-1)) != 0) { ptr += alignment - (ptr & (alignment-1)); } return reinterpret_cast(ptr); #endif // HAVE_SBRK } void* MmapSysAllocator::Alloc(size_t size, size_t *actual_size, size_t alignment) { #ifndef HAVE_MMAP return NULL; #else // Check if we should use mmap allocation. // FLAGS_malloc_skip_mmap starts out as false (its uninitialized // state) and eventually gets initialized to the specified value. Note // that this code runs for a while before the flags are initialized. // Chances are we never get here before the flags are initialized since // sbrk is used until the heap is exhausted (before mmap is used). if (FLAGS_malloc_skip_mmap) { return NULL; } // Enforce page alignment if (pagesize == 0) pagesize = getpagesize(); if (alignment < pagesize) alignment = pagesize; size_t aligned_size = ((size + alignment - 1) / alignment) * alignment; if (aligned_size < size) { return NULL; } size = aligned_size; // "actual_size" indicates that the bytes from the returned pointer // p up to and including (p + actual_size - 1) have been allocated. if (actual_size) { *actual_size = size; } // Ask for extra memory if alignment > pagesize size_t extra = 0; if (alignment > pagesize) { extra = alignment - pagesize; } // Note: size + extra does not overflow since: // size + alignment < (1<(MAP_FAILED)) { return NULL; } // Adjust the return memory so it is aligned uintptr_t ptr = reinterpret_cast(result); size_t adjust = 0; if ((ptr & (alignment - 1)) != 0) { adjust = alignment - (ptr & (alignment - 1)); } // Return the unused memory to the system if (adjust > 0) { munmap(reinterpret_cast(ptr), adjust); } if (adjust < extra) { munmap(reinterpret_cast(ptr + adjust + size), extra - adjust); } ptr += adjust; return reinterpret_cast(ptr); #endif // HAVE_MMAP } void* DevMemSysAllocator::Alloc(size_t size, size_t *actual_size, size_t alignment) { #ifndef HAVE_MMAP return NULL; #else static bool initialized = false; static off_t physmem_base; // next physical memory address to allocate static off_t physmem_limit; // maximum physical address allowed static int physmem_fd; // file descriptor for /dev/mem // Check if we should use /dev/mem allocation. Note that it may take // a while to get this flag initialized, so meanwhile we fall back to // the next allocator. (It looks like 7MB gets allocated before // this flag gets initialized -khr.) if (FLAGS_malloc_devmem_start == 0) { // NOTE: not a devmem_failure - we'd like TCMalloc_SystemAlloc to // try us again next time. return NULL; } if (!initialized) { physmem_fd = open("/dev/mem", O_RDWR); if (physmem_fd < 0) { return NULL; } physmem_base = FLAGS_malloc_devmem_start*1024LL*1024LL; physmem_limit = FLAGS_malloc_devmem_limit*1024LL*1024LL; initialized = true; } // Enforce page alignment if (pagesize == 0) pagesize = getpagesize(); if (alignment < pagesize) alignment = pagesize; size_t aligned_size = ((size + alignment - 1) / alignment) * alignment; if (aligned_size < size) { return NULL; } size = aligned_size; // "actual_size" indicates that the bytes from the returned pointer // p up to and including (p + actual_size - 1) have been allocated. if (actual_size) { *actual_size = size; } // Ask for extra memory if alignment > pagesize size_t extra = 0; if (alignment > pagesize) { extra = alignment - pagesize; } // check to see if we have any memory left if (physmem_limit != 0 && ((size + extra) > (physmem_limit - physmem_base))) { return NULL; } // Note: size + extra does not overflow since: // size + alignment < (1<(MAP_FAILED)) { return NULL; } uintptr_t ptr = reinterpret_cast(result); // Adjust the return memory so it is aligned size_t adjust = 0; if ((ptr & (alignment - 1)) != 0) { adjust = alignment - (ptr & (alignment - 1)); } // Return the unused virtual memory to the system if (adjust > 0) { munmap(reinterpret_cast(ptr), adjust); } if (adjust < extra) { munmap(reinterpret_cast(ptr + adjust + size), extra - adjust); } ptr += adjust; physmem_base += adjust + size; return reinterpret_cast(ptr); #endif // HAVE_MMAP } void* DefaultSysAllocator::Alloc(size_t size, size_t *actual_size, size_t alignment) { for (int i = 0; i < kMaxAllocators; i++) { if (!failed_[i] && allocs_[i] != NULL) { void* result = allocs_[i]->Alloc(size, actual_size, alignment); if (result != NULL) { return result; } failed_[i] = true; } } // After both failed, reset "failed_" to false so that a single failed // allocation won't make the allocator never work again. for (int i = 0; i < kMaxAllocators; i++) { failed_[i] = false; } return NULL; } ATTRIBUTE_WEAK ATTRIBUTE_NOINLINE SysAllocator *tc_get_sysalloc_override(SysAllocator *def) { return def; } static bool system_alloc_inited = false; void InitSystemAllocators(void) { MmapSysAllocator *mmap = new (mmap_space) MmapSysAllocator(); SbrkSysAllocator *sbrk = new (sbrk_space) SbrkSysAllocator(); // In 64-bit debug mode, place the mmap allocator first since it // allocates pointers that do not fit in 32 bits and therefore gives // us better testing of code's 64-bit correctness. It also leads to // less false negatives in heap-checking code. (Numbers are less // likely to look like pointers and therefore the conservative gc in // the heap-checker is less likely to misinterpret a number as a // pointer). DefaultSysAllocator *sdef = new (default_space) DefaultSysAllocator(); if (kDebugMode && sizeof(void*) > 4) { sdef->SetChildAllocator(mmap, 0, mmap_name); sdef->SetChildAllocator(sbrk, 1, sbrk_name); } else { sdef->SetChildAllocator(sbrk, 0, sbrk_name); sdef->SetChildAllocator(mmap, 1, mmap_name); } sys_alloc = tc_get_sysalloc_override(sdef); } void* TCMalloc_SystemAlloc(size_t size, size_t *actual_size, size_t alignment) { // Discard requests that overflow if (size + alignment < size) return NULL; SpinLockHolder lock_holder(&spinlock); if (!system_alloc_inited) { InitSystemAllocators(); system_alloc_inited = true; } // Enforce minimum alignment if (alignment < sizeof(MemoryAligner)) alignment = sizeof(MemoryAligner); size_t actual_size_storage; if (actual_size == NULL) { actual_size = &actual_size_storage; } void* result = sys_alloc->Alloc(size, actual_size, alignment); if (result != NULL) { CHECK_CONDITION( CheckAddressBits( reinterpret_cast(result) + *actual_size - 1)); TCMalloc_SystemTaken += *actual_size; } return result; } bool TCMalloc_SystemRelease(void* start, size_t length) { #ifdef MADV_FREE if (FLAGS_malloc_devmem_start) { // It's not safe to use MADV_FREE/MADV_DONTNEED if we've been // mapping /dev/mem for heap memory. return false; } if (FLAGS_malloc_disable_memory_release) return false; if (pagesize == 0) pagesize = getpagesize(); const size_t pagemask = pagesize - 1; size_t new_start = reinterpret_cast(start); size_t end = new_start + length; size_t new_end = end; // Round up the starting address and round down the ending address // to be page aligned: new_start = (new_start + pagesize - 1) & ~pagemask; new_end = new_end & ~pagemask; ASSERT((new_start & pagemask) == 0); ASSERT((new_end & pagemask) == 0); ASSERT(new_start >= reinterpret_cast(start)); ASSERT(new_end <= end); if (new_end > new_start) { int result; do { result = madvise(reinterpret_cast(new_start), new_end - new_start, MADV_FREE); } while (result == -1 && errno == EAGAIN); return result != -1; } #endif return false; } void TCMalloc_SystemCommit(void* start, size_t length) { // Nothing to do here. TCMalloc_SystemRelease does not alter pages // such that they need to be re-committed before they can be used by the // application. } gperftools-2.4/src/memfs_malloc.cc0000644000000000000000000002316712440704174014202 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Arun Sharma // // A tcmalloc system allocator that uses a memory based filesystem such as // tmpfs or hugetlbfs // // Since these only exist on linux, we only register this allocator there. #ifdef __linux #include #include // for errno, EINVAL #include // for PRId64 #include // for PATH_MAX #include // for size_t, NULL #ifdef HAVE_STDINT_H #include // for int64_t, uintptr_t #endif #include // for snprintf #include // for mkstemp #include // for strerror #include // for mmap, MAP_FAILED, etc #include // for fstatfs, statfs #include // for ftruncate, off_t, unlink #include // for operator new #include #include #include "base/basictypes.h" #include "base/googleinit.h" #include "base/sysinfo.h" #include "internal_logging.h" // TODO(sanjay): Move the code below into the tcmalloc namespace using tcmalloc::kLog; using tcmalloc::kCrash; using tcmalloc::Log; using std::string; DEFINE_string(memfs_malloc_path, EnvToString("TCMALLOC_MEMFS_MALLOC_PATH", ""), "Path where hugetlbfs or tmpfs is mounted. The caller is " "responsible for ensuring that the path is unique and does " "not conflict with another process"); DEFINE_int64(memfs_malloc_limit_mb, EnvToInt("TCMALLOC_MEMFS_LIMIT_MB", 0), "Limit total allocation size to the " "specified number of MiB. 0 == no limit."); DEFINE_bool(memfs_malloc_abort_on_fail, EnvToBool("TCMALLOC_MEMFS_ABORT_ON_FAIL", false), "abort() whenever memfs_malloc fails to satisfy an allocation " "for any reason."); DEFINE_bool(memfs_malloc_ignore_mmap_fail, EnvToBool("TCMALLOC_MEMFS_IGNORE_MMAP_FAIL", false), "Ignore failures from mmap"); DEFINE_bool(memfs_malloc_map_private, EnvToBool("TCMALLOC_MEMFS_MAP_PRIVATE", false), "Use MAP_PRIVATE with mmap"); // Hugetlbfs based allocator for tcmalloc class HugetlbSysAllocator: public SysAllocator { public: explicit HugetlbSysAllocator(SysAllocator* fallback) : failed_(true), // To disable allocator until Initialize() is called. big_page_size_(0), hugetlb_fd_(-1), hugetlb_base_(0), fallback_(fallback) { } void* Alloc(size_t size, size_t *actual_size, size_t alignment); bool Initialize(); bool failed_; // Whether failed to allocate memory. private: void* AllocInternal(size_t size, size_t *actual_size, size_t alignment); int64 big_page_size_; int hugetlb_fd_; // file descriptor for hugetlb off_t hugetlb_base_; SysAllocator* fallback_; // Default system allocator to fall back to. }; static char hugetlb_space[sizeof(HugetlbSysAllocator)]; // No locking needed here since we assume that tcmalloc calls // us with an internal lock held (see tcmalloc/system-alloc.cc). void* HugetlbSysAllocator::Alloc(size_t size, size_t *actual_size, size_t alignment) { if (failed_) { return fallback_->Alloc(size, actual_size, alignment); } // We don't respond to allocation requests smaller than big_page_size_ unless // the caller is ok to take more than they asked for. Used by MetaDataAlloc. if (actual_size == NULL && size < big_page_size_) { return fallback_->Alloc(size, actual_size, alignment); } // Enforce huge page alignment. Be careful to deal with overflow. size_t new_alignment = alignment; if (new_alignment < big_page_size_) new_alignment = big_page_size_; size_t aligned_size = ((size + new_alignment - 1) / new_alignment) * new_alignment; if (aligned_size < size) { return fallback_->Alloc(size, actual_size, alignment); } void* result = AllocInternal(aligned_size, actual_size, new_alignment); if (result != NULL) { return result; } Log(kLog, __FILE__, __LINE__, "HugetlbSysAllocator: (failed, allocated)", failed_, hugetlb_base_); if (FLAGS_memfs_malloc_abort_on_fail) { Log(kCrash, __FILE__, __LINE__, "memfs_malloc_abort_on_fail is set"); } return fallback_->Alloc(size, actual_size, alignment); } void* HugetlbSysAllocator::AllocInternal(size_t size, size_t* actual_size, size_t alignment) { // Ask for extra memory if alignment > pagesize size_t extra = 0; if (alignment > big_page_size_) { extra = alignment - big_page_size_; } // Test if this allocation would put us over the limit. off_t limit = FLAGS_memfs_malloc_limit_mb*1024*1024; if (limit > 0 && hugetlb_base_ + size + extra > limit) { // Disable the allocator when there's less than one page left. if (limit - hugetlb_base_ < big_page_size_) { Log(kLog, __FILE__, __LINE__, "reached memfs_malloc_limit_mb"); failed_ = true; } else { Log(kLog, __FILE__, __LINE__, "alloc too large (size, bytes left)", size, limit-hugetlb_base_); } return NULL; } // This is not needed for hugetlbfs, but needed for tmpfs. Annoyingly // hugetlbfs returns EINVAL for ftruncate. int ret = ftruncate(hugetlb_fd_, hugetlb_base_ + size + extra); if (ret != 0 && errno != EINVAL) { Log(kLog, __FILE__, __LINE__, "ftruncate failed", strerror(errno)); failed_ = true; return NULL; } // Note: size + extra does not overflow since: // size + alignment < (1<(MAP_FAILED)) { if (!FLAGS_memfs_malloc_ignore_mmap_fail) { Log(kLog, __FILE__, __LINE__, "mmap failed (size, error)", size + extra, strerror(errno)); failed_ = true; } return NULL; } uintptr_t ptr = reinterpret_cast(result); // Adjust the return memory so it is aligned size_t adjust = 0; if ((ptr & (alignment - 1)) != 0) { adjust = alignment - (ptr & (alignment - 1)); } ptr += adjust; hugetlb_base_ += (size + extra); if (actual_size) { *actual_size = size + extra - adjust; } return reinterpret_cast(ptr); } bool HugetlbSysAllocator::Initialize() { char path[PATH_MAX]; const int pathlen = FLAGS_memfs_malloc_path.size(); if (pathlen + 8 > sizeof(path)) { Log(kCrash, __FILE__, __LINE__, "XX fatal: memfs_malloc_path too long"); return false; } memcpy(path, FLAGS_memfs_malloc_path.data(), pathlen); memcpy(path + pathlen, ".XXXXXX", 8); // Also copies terminating \0 int hugetlb_fd = mkstemp(path); if (hugetlb_fd == -1) { Log(kLog, __FILE__, __LINE__, "warning: unable to create memfs_malloc_path", path, strerror(errno)); return false; } // Cleanup memory on process exit if (unlink(path) == -1) { Log(kCrash, __FILE__, __LINE__, "fatal: error unlinking memfs_malloc_path", path, strerror(errno)); return false; } // Use fstatfs to figure out the default page size for memfs struct statfs sfs; if (fstatfs(hugetlb_fd, &sfs) == -1) { Log(kCrash, __FILE__, __LINE__, "fatal: error fstatfs of memfs_malloc_path", strerror(errno)); return false; } int64 page_size = sfs.f_bsize; hugetlb_fd_ = hugetlb_fd; big_page_size_ = page_size; failed_ = false; return true; } REGISTER_MODULE_INITIALIZER(memfs_malloc, { if (FLAGS_memfs_malloc_path.length()) { SysAllocator* alloc = MallocExtension::instance()->GetSystemAllocator(); HugetlbSysAllocator* hp = new (hugetlb_space) HugetlbSysAllocator(alloc); if (hp->Initialize()) { MallocExtension::instance()->SetSystemAllocator(hp); } } }); #endif /* ifdef __linux */ gperftools-2.4/src/central_freelist.cc0000644000000000000000000003044712441201462015061 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include "config.h" #include #include "central_freelist.h" #include "internal_logging.h" // for ASSERT, MESSAGE #include "linked_list.h" // for SLL_Next, SLL_Push, etc #include "page_heap.h" // for PageHeap #include "static_vars.h" // for Static using std::min; using std::max; namespace tcmalloc { void CentralFreeList::Init(size_t cl) { size_class_ = cl; tcmalloc::DLL_Init(&empty_); tcmalloc::DLL_Init(&nonempty_); num_spans_ = 0; counter_ = 0; max_cache_size_ = kMaxNumTransferEntries; #ifdef TCMALLOC_SMALL_BUT_SLOW // Disable the transfer cache for the small footprint case. cache_size_ = 0; #else cache_size_ = 16; #endif if (cl > 0) { // Limit the maximum size of the cache based on the size class. If this // is not done, large size class objects will consume a lot of memory if // they just sit in the transfer cache. int32_t bytes = Static::sizemap()->ByteSizeForClass(cl); int32_t objs_to_move = Static::sizemap()->num_objects_to_move(cl); ASSERT(objs_to_move > 0 && bytes > 0); // Limit each size class cache to at most 1MB of objects or one entry, // whichever is greater. Total transfer cache memory used across all // size classes then can't be greater than approximately // 1MB * kMaxNumTransferEntries. // min and max are in parens to avoid macro-expansion on windows. max_cache_size_ = (min)(max_cache_size_, (max)(1, (1024 * 1024) / (bytes * objs_to_move))); cache_size_ = (min)(cache_size_, max_cache_size_); } used_slots_ = 0; ASSERT(cache_size_ <= max_cache_size_); } void CentralFreeList::ReleaseListToSpans(void* start) { while (start) { void *next = SLL_Next(start); ReleaseToSpans(start); start = next; } } // MapObjectToSpan should logically be part of ReleaseToSpans. But // this triggers an optimization bug in gcc 4.5.0. Moving to a // separate function, and making sure that function isn't inlined, // seems to fix the problem. It also should be fixed for gcc 4.5.1. static #if __GNUC__ == 4 && __GNUC_MINOR__ == 5 && __GNUC_PATCHLEVEL__ == 0 __attribute__ ((noinline)) #endif Span* MapObjectToSpan(void* object) { const PageID p = reinterpret_cast(object) >> kPageShift; Span* span = Static::pageheap()->GetDescriptor(p); return span; } void CentralFreeList::ReleaseToSpans(void* object) { Span* span = MapObjectToSpan(object); ASSERT(span != NULL); ASSERT(span->refcount > 0); // If span is empty, move it to non-empty list if (span->objects == NULL) { tcmalloc::DLL_Remove(span); tcmalloc::DLL_Prepend(&nonempty_, span); Event(span, 'N', 0); } // The following check is expensive, so it is disabled by default if (false) { // Check that object does not occur in list int got = 0; for (void* p = span->objects; p != NULL; p = *((void**) p)) { ASSERT(p != object); got++; } ASSERT(got + span->refcount == (span->length<ByteSizeForClass(span->sizeclass)); } counter_++; span->refcount--; if (span->refcount == 0) { Event(span, '#', 0); counter_ -= ((span->length<ByteSizeForClass(span->sizeclass)); tcmalloc::DLL_Remove(span); --num_spans_; // Release central list lock while operating on pageheap lock_.Unlock(); { SpinLockHolder h(Static::pageheap_lock()); Static::pageheap()->Delete(span); } lock_.Lock(); } else { *(reinterpret_cast(object)) = span->objects; span->objects = object; } } bool CentralFreeList::EvictRandomSizeClass( int locked_size_class, bool force) { static int race_counter = 0; int t = race_counter++; // Updated without a lock, but who cares. if (t >= kNumClasses) { while (t >= kNumClasses) { t -= kNumClasses; } race_counter = t; } ASSERT(t >= 0); ASSERT(t < kNumClasses); if (t == locked_size_class) return false; return Static::central_cache()[t].ShrinkCache(locked_size_class, force); } bool CentralFreeList::MakeCacheSpace() { // Is there room in the cache? if (used_slots_ < cache_size_) return true; // Check if we can expand this cache? if (cache_size_ == max_cache_size_) return false; // Ok, we'll try to grab an entry from some other size class. if (EvictRandomSizeClass(size_class_, false) || EvictRandomSizeClass(size_class_, true)) { // Succeeded in evicting, we're going to make our cache larger. // However, we may have dropped and re-acquired the lock in // EvictRandomSizeClass (via ShrinkCache and the LockInverter), so the // cache_size may have changed. Therefore, check and verify that it is // still OK to increase the cache_size. if (cache_size_ < max_cache_size_) { cache_size_++; return true; } } return false; } namespace { class LockInverter { private: SpinLock *held_, *temp_; public: inline explicit LockInverter(SpinLock* held, SpinLock *temp) : held_(held), temp_(temp) { held_->Unlock(); temp_->Lock(); } inline ~LockInverter() { temp_->Unlock(); held_->Lock(); } }; } // This function is marked as NO_THREAD_SAFETY_ANALYSIS because it uses // LockInverter to release one lock and acquire another in scoped-lock // style, which our current annotation/analysis does not support. bool CentralFreeList::ShrinkCache(int locked_size_class, bool force) NO_THREAD_SAFETY_ANALYSIS { // Start with a quick check without taking a lock. if (cache_size_ == 0) return false; // We don't evict from a full cache unless we are 'forcing'. if (force == false && used_slots_ == cache_size_) return false; // Grab lock, but first release the other lock held by this thread. We use // the lock inverter to ensure that we never hold two size class locks // concurrently. That can create a deadlock because there is no well // defined nesting order. LockInverter li(&Static::central_cache()[locked_size_class].lock_, &lock_); ASSERT(used_slots_ <= cache_size_); ASSERT(0 <= cache_size_); if (cache_size_ == 0) return false; if (used_slots_ == cache_size_) { if (force == false) return false; // ReleaseListToSpans releases the lock, so we have to make all the // updates to the central list before calling it. cache_size_--; used_slots_--; ReleaseListToSpans(tc_slots_[used_slots_].head); return true; } cache_size_--; return true; } void CentralFreeList::InsertRange(void *start, void *end, int N) { SpinLockHolder h(&lock_); if (N == Static::sizemap()->num_objects_to_move(size_class_) && MakeCacheSpace()) { int slot = used_slots_++; ASSERT(slot >=0); ASSERT(slot < max_cache_size_); TCEntry *entry = &tc_slots_[slot]; entry->head = start; entry->tail = end; return; } ReleaseListToSpans(start); } int CentralFreeList::RemoveRange(void **start, void **end, int N) { ASSERT(N > 0); lock_.Lock(); if (N == Static::sizemap()->num_objects_to_move(size_class_) && used_slots_ > 0) { int slot = --used_slots_; ASSERT(slot >= 0); TCEntry *entry = &tc_slots_[slot]; *start = entry->head; *end = entry->tail; lock_.Unlock(); return N; } int result = 0; *start = NULL; *end = NULL; // TODO: Prefetch multiple TCEntries? result = FetchFromOneSpansSafe(N, start, end); if (result != 0) { while (result < N) { int n; void* head = NULL; void* tail = NULL; n = FetchFromOneSpans(N - result, &head, &tail); if (!n) break; result += n; SLL_PushRange(start, head, tail); } } lock_.Unlock(); return result; } int CentralFreeList::FetchFromOneSpansSafe(int N, void **start, void **end) { int result = FetchFromOneSpans(N, start, end); if (!result) { Populate(); result = FetchFromOneSpans(N, start, end); } return result; } int CentralFreeList::FetchFromOneSpans(int N, void **start, void **end) { if (tcmalloc::DLL_IsEmpty(&nonempty_)) return 0; Span* span = nonempty_.next; ASSERT(span->objects != NULL); int result = 0; void *prev, *curr; curr = span->objects; do { prev = curr; curr = *(reinterpret_cast(curr)); } while (++result < N && curr != NULL); if (curr == NULL) { // Move to empty list tcmalloc::DLL_Remove(span); tcmalloc::DLL_Prepend(&empty_, span); Event(span, 'E', 0); } *start = span->objects; *end = prev; span->objects = curr; SLL_SetNext(*end, NULL); span->refcount += result; counter_ -= result; return result; } // Fetch memory from the system and add to the central cache freelist. void CentralFreeList::Populate() { // Release central list lock while operating on pageheap lock_.Unlock(); const size_t npages = Static::sizemap()->class_to_pages(size_class_); Span* span; { SpinLockHolder h(Static::pageheap_lock()); span = Static::pageheap()->New(npages); if (span) Static::pageheap()->RegisterSizeClass(span, size_class_); } if (span == NULL) { Log(kLog, __FILE__, __LINE__, "tcmalloc: allocation failed", npages << kPageShift); lock_.Lock(); return; } ASSERT(span->length == npages); // Cache sizeclass info eagerly. Locking is not necessary. // (Instead of being eager, we could just replace any stale info // about this span, but that seems to be no better in practice.) for (int i = 0; i < npages; i++) { Static::pageheap()->CacheSizeClass(span->start + i, size_class_); } // Split the block into pieces and add to the free-list // TODO: coloring of objects to avoid cache conflicts? void** tail = &span->objects; char* ptr = reinterpret_cast(span->start << kPageShift); char* limit = ptr + (npages << kPageShift); const size_t size = Static::sizemap()->ByteSizeForClass(size_class_); int num = 0; while (ptr + size <= limit) { *tail = ptr; tail = reinterpret_cast(ptr); ptr += size; num++; } ASSERT(ptr <= limit); *tail = NULL; span->refcount = 0; // No sub-object in use yet // Add span to list of non-empty spans lock_.Lock(); tcmalloc::DLL_Prepend(&nonempty_, span); ++num_spans_; counter_ += num; } int CentralFreeList::tc_length() { SpinLockHolder h(&lock_); return used_slots_ * Static::sizemap()->num_objects_to_move(size_class_); } size_t CentralFreeList::OverheadBytes() { SpinLockHolder h(&lock_); if (size_class_ == 0) { // 0 holds the 0-sized allocations return 0; } const size_t pages_per_span = Static::sizemap()->class_to_pages(size_class_); const size_t object_size = Static::sizemap()->class_to_size(size_class_); ASSERT(object_size > 0); const size_t overhead_per_span = (pages_per_span * kPageSize) % object_size; return num_spans_ * overhead_per_span; } } // namespace tcmalloc gperftools-2.4/src/page_heap.cc0000644000000000000000000005676712445453031013467 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include #ifdef HAVE_INTTYPES_H #include // for PRIuPTR #endif #include // for MallocRange, etc #include "base/basictypes.h" #include "base/commandlineflags.h" #include "internal_logging.h" // for ASSERT, TCMalloc_Printer, etc #include "page_heap_allocator.h" // for PageHeapAllocator #include "static_vars.h" // for Static #include "system-alloc.h" // for TCMalloc_SystemAlloc, etc DEFINE_double(tcmalloc_release_rate, EnvToDouble("TCMALLOC_RELEASE_RATE", 1.0), "Rate at which we release unused memory to the system. " "Zero means we never release memory back to the system. " "Increase this flag to return memory faster; decrease it " "to return memory slower. Reasonable rates are in the " "range [0,10]"); DEFINE_int64(tcmalloc_heap_limit_mb, EnvToInt("TCMALLOC_HEAP_LIMIT_MB", 0), "Limit total size of the process heap to the " "specified number of MiB. " "When we approach the limit the memory is released " "to the system more aggressively (more minor page faults). " "Zero means to allocate as long as system allows."); namespace tcmalloc { PageHeap::PageHeap() : pagemap_(MetaDataAlloc), pagemap_cache_(0), scavenge_counter_(0), // Start scavenging at kMaxPages list release_index_(kMaxPages), aggressive_decommit_(false) { COMPILE_ASSERT(kNumClasses <= (1 << PageMapCache::kValuebits), valuebits); DLL_Init(&large_.normal); DLL_Init(&large_.returned); for (int i = 0; i < kMaxPages; i++) { DLL_Init(&free_[i].normal); DLL_Init(&free_[i].returned); } } Span* PageHeap::SearchFreeAndLargeLists(Length n) { ASSERT(Check()); ASSERT(n > 0); // Find first size >= n that has a non-empty list for (Length s = n; s < kMaxPages; s++) { Span* ll = &free_[s].normal; // If we're lucky, ll is non-empty, meaning it has a suitable span. if (!DLL_IsEmpty(ll)) { ASSERT(ll->next->location == Span::ON_NORMAL_FREELIST); return Carve(ll->next, n); } // Alternatively, maybe there's a usable returned span. ll = &free_[s].returned; if (!DLL_IsEmpty(ll)) { // We did not call EnsureLimit before, to avoid releasing the span // that will be taken immediately back. // Calling EnsureLimit here is not very expensive, as it fails only if // there is no more normal spans (and it fails efficiently) // or SystemRelease does not work (there is probably no returned spans). if (EnsureLimit(n)) { // ll may have became empty due to coalescing if (!DLL_IsEmpty(ll)) { ASSERT(ll->next->location == Span::ON_RETURNED_FREELIST); return Carve(ll->next, n); } } } } // No luck in free lists, our last chance is in a larger class. return AllocLarge(n); // May be NULL } static const size_t kForcedCoalesceInterval = 128*1024*1024; Span* PageHeap::New(Length n) { ASSERT(Check()); ASSERT(n > 0); Span* result = SearchFreeAndLargeLists(n); if (result != NULL) return result; if (stats_.free_bytes != 0 && stats_.unmapped_bytes != 0 && stats_.free_bytes + stats_.unmapped_bytes >= stats_.system_bytes / 4 && (stats_.system_bytes / kForcedCoalesceInterval != (stats_.system_bytes + (n << kPageShift)) / kForcedCoalesceInterval)) { // We're about to grow heap, but there are lots of free pages. // tcmalloc's design decision to keep unmapped and free spans // separately and never coalesce them means that sometimes there // can be free pages span of sufficient size, but it consists of // "segments" of different type so page heap search cannot find // it. In order to prevent growing heap and wasting memory in such // case we're going to unmap all free pages. So that all free // spans are maximally coalesced. // // We're also limiting 'rate' of going into this path to be at // most once per 128 megs of heap growth. Otherwise programs that // grow heap frequently (and that means by small amount) could be // penalized with higher count of minor page faults. // // See also large_heap_fragmentation_unittest.cc and // https://code.google.com/p/gperftools/issues/detail?id=368 ReleaseAtLeastNPages(static_cast(0x7fffffff)); // then try again. If we are forced to grow heap because of large // spans fragmentation and not because of problem described above, // then at the very least we've just unmapped free but // insufficiently big large spans back to OS. So in case of really // unlucky memory fragmentation we'll be consuming virtual address // space, but not real memory result = SearchFreeAndLargeLists(n); if (result != NULL) return result; } // Grow the heap and try again. if (!GrowHeap(n)) { ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes); ASSERT(Check()); return NULL; } return SearchFreeAndLargeLists(n); } Span* PageHeap::AllocLarge(Length n) { // find the best span (closest to n in size). // The following loops implements address-ordered best-fit. Span *best = NULL; // Search through normal list for (Span* span = large_.normal.next; span != &large_.normal; span = span->next) { if (span->length >= n) { if ((best == NULL) || (span->length < best->length) || ((span->length == best->length) && (span->start < best->start))) { best = span; ASSERT(best->location == Span::ON_NORMAL_FREELIST); } } } Span *bestNormal = best; // Search through released list in case it has a better fit for (Span* span = large_.returned.next; span != &large_.returned; span = span->next) { if (span->length >= n) { if ((best == NULL) || (span->length < best->length) || ((span->length == best->length) && (span->start < best->start))) { best = span; ASSERT(best->location == Span::ON_RETURNED_FREELIST); } } } if (best == bestNormal) { return best == NULL ? NULL : Carve(best, n); } // best comes from returned list. if (EnsureLimit(n, false)) { return Carve(best, n); } if (EnsureLimit(n, true)) { // best could have been destroyed by coalescing. // bestNormal is not a best-fit, and it could be destroyed as well. // We retry, the limit is already ensured: return AllocLarge(n); } // If bestNormal existed, EnsureLimit would succeeded: ASSERT(bestNormal == NULL); // We are not allowed to take best from returned list. return NULL; } Span* PageHeap::Split(Span* span, Length n) { ASSERT(0 < n); ASSERT(n < span->length); ASSERT(span->location == Span::IN_USE); ASSERT(span->sizeclass == 0); Event(span, 'T', n); const int extra = span->length - n; Span* leftover = NewSpan(span->start + n, extra); ASSERT(leftover->location == Span::IN_USE); Event(leftover, 'U', extra); RecordSpan(leftover); pagemap_.set(span->start + n - 1, span); // Update map from pageid to span span->length = n; return leftover; } void PageHeap::CommitSpan(Span* span) { TCMalloc_SystemCommit(reinterpret_cast(span->start << kPageShift), static_cast(span->length << kPageShift)); stats_.committed_bytes += span->length << kPageShift; } bool PageHeap::DecommitSpan(Span* span) { bool rv = TCMalloc_SystemRelease(reinterpret_cast(span->start << kPageShift), static_cast(span->length << kPageShift)); if (rv) { stats_.committed_bytes -= span->length << kPageShift; } return rv; } Span* PageHeap::Carve(Span* span, Length n) { ASSERT(n > 0); ASSERT(span->location != Span::IN_USE); const int old_location = span->location; RemoveFromFreeList(span); span->location = Span::IN_USE; Event(span, 'A', n); const int extra = span->length - n; ASSERT(extra >= 0); if (extra > 0) { Span* leftover = NewSpan(span->start + n, extra); leftover->location = old_location; Event(leftover, 'S', extra); RecordSpan(leftover); // The previous span of |leftover| was just splitted -- no need to // coalesce them. The next span of |leftover| was not previously coalesced // with |span|, i.e. is NULL or has got location other than |old_location|. #ifndef NDEBUG const PageID p = leftover->start; const Length len = leftover->length; Span* next = GetDescriptor(p+len); ASSERT (next == NULL || next->location == Span::IN_USE || next->location != leftover->location); #endif PrependToFreeList(leftover); // Skip coalescing - no candidates possible span->length = n; pagemap_.set(span->start + n - 1, span); } ASSERT(Check()); if (old_location == Span::ON_RETURNED_FREELIST) { // We need to recommit this address space. CommitSpan(span); } ASSERT(span->location == Span::IN_USE); ASSERT(span->length == n); ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes); return span; } void PageHeap::Delete(Span* span) { ASSERT(Check()); ASSERT(span->location == Span::IN_USE); ASSERT(span->length > 0); ASSERT(GetDescriptor(span->start) == span); ASSERT(GetDescriptor(span->start + span->length - 1) == span); const Length n = span->length; span->sizeclass = 0; span->sample = 0; span->location = Span::ON_NORMAL_FREELIST; Event(span, 'D', span->length); MergeIntoFreeList(span); // Coalesces if possible IncrementalScavenge(n); ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes); ASSERT(Check()); } bool PageHeap::MayMergeSpans(Span *span, Span *other) { if (aggressive_decommit_) { return other->location != Span::IN_USE; } return span->location == other->location; } void PageHeap::MergeIntoFreeList(Span* span) { ASSERT(span->location != Span::IN_USE); // Coalesce -- we guarantee that "p" != 0, so no bounds checking // necessary. We do not bother resetting the stale pagemap // entries for the pieces we are merging together because we only // care about the pagemap entries for the boundaries. // // Note: depending on aggressive_decommit_ mode we allow only // similar spans to be coalesced. // // The following applies if aggressive_decommit_ is enabled: // // Note that the adjacent spans we merge into "span" may come out of a // "normal" (committed) list, and cleanly merge with our IN_USE span, which // is implicitly committed. If the adjacents spans are on the "returned" // (decommitted) list, then we must get both spans into the same state before // or after we coalesce them. The current code always decomits. This is // achieved by blindly decommitting the entire coalesced region, which may // include any combination of committed and decommitted spans, at the end of // the method. // TODO(jar): "Always decommit" causes some extra calls to commit when we are // called in GrowHeap() during an allocation :-/. We need to eval the cost of // that oscillation, and possibly do something to reduce it. // TODO(jar): We need a better strategy for deciding to commit, or decommit, // based on memory usage and free heap sizes. uint64_t temp_committed = 0; const PageID p = span->start; const Length n = span->length; Span* prev = GetDescriptor(p-1); if (prev != NULL && MayMergeSpans(span, prev)) { // Merge preceding span into this span ASSERT(prev->start + prev->length == p); const Length len = prev->length; if (aggressive_decommit_ && prev->location == Span::ON_RETURNED_FREELIST) { // We're about to put the merge span into the returned freelist and call // DecommitSpan() on it, which will mark the entire span including this // one as released and decrease stats_.committed_bytes by the size of the // merged span. To make the math work out we temporarily increase the // stats_.committed_bytes amount. temp_committed = prev->length << kPageShift; } RemoveFromFreeList(prev); DeleteSpan(prev); span->start -= len; span->length += len; pagemap_.set(span->start, span); Event(span, 'L', len); } Span* next = GetDescriptor(p+n); if (next != NULL && MayMergeSpans(span, next)) { // Merge next span into this span ASSERT(next->start == p+n); const Length len = next->length; if (aggressive_decommit_ && next->location == Span::ON_RETURNED_FREELIST) { // See the comment below 'if (prev->location ...' for explanation. temp_committed += next->length << kPageShift; } RemoveFromFreeList(next); DeleteSpan(next); span->length += len; pagemap_.set(span->start + span->length - 1, span); Event(span, 'R', len); } if (aggressive_decommit_) { if (DecommitSpan(span)) { span->location = Span::ON_RETURNED_FREELIST; stats_.committed_bytes += temp_committed; } else { ASSERT(temp_committed == 0); } } PrependToFreeList(span); } void PageHeap::PrependToFreeList(Span* span) { ASSERT(span->location != Span::IN_USE); SpanList* list = (span->length < kMaxPages) ? &free_[span->length] : &large_; if (span->location == Span::ON_NORMAL_FREELIST) { stats_.free_bytes += (span->length << kPageShift); DLL_Prepend(&list->normal, span); } else { stats_.unmapped_bytes += (span->length << kPageShift); DLL_Prepend(&list->returned, span); } } void PageHeap::RemoveFromFreeList(Span* span) { ASSERT(span->location != Span::IN_USE); if (span->location == Span::ON_NORMAL_FREELIST) { stats_.free_bytes -= (span->length << kPageShift); } else { stats_.unmapped_bytes -= (span->length << kPageShift); } DLL_Remove(span); } void PageHeap::IncrementalScavenge(Length n) { // Fast path; not yet time to release memory scavenge_counter_ -= n; if (scavenge_counter_ >= 0) return; // Not yet time to scavenge const double rate = FLAGS_tcmalloc_release_rate; if (rate <= 1e-6) { // Tiny release rate means that releasing is disabled. scavenge_counter_ = kDefaultReleaseDelay; return; } Length released_pages = ReleaseAtLeastNPages(1); if (released_pages == 0) { // Nothing to scavenge, delay for a while. scavenge_counter_ = kDefaultReleaseDelay; } else { // Compute how long to wait until we return memory. // FLAGS_tcmalloc_release_rate==1 means wait for 1000 pages // after releasing one page. const double mult = 1000.0 / rate; double wait = mult * static_cast(released_pages); if (wait > kMaxReleaseDelay) { // Avoid overflow and bound to reasonable range. wait = kMaxReleaseDelay; } scavenge_counter_ = static_cast(wait); } } Length PageHeap::ReleaseLastNormalSpan(SpanList* slist) { Span* s = slist->normal.prev; ASSERT(s->location == Span::ON_NORMAL_FREELIST); if (DecommitSpan(s)) { RemoveFromFreeList(s); const Length n = s->length; s->location = Span::ON_RETURNED_FREELIST; MergeIntoFreeList(s); // Coalesces if possible. return n; } return 0; } Length PageHeap::ReleaseAtLeastNPages(Length num_pages) { Length released_pages = 0; // Round robin through the lists of free spans, releasing the last // span in each list. Stop after releasing at least num_pages // or when there is nothing more to release. while (released_pages < num_pages && stats_.free_bytes > 0) { for (int i = 0; i < kMaxPages+1 && released_pages < num_pages; i++, release_index_++) { if (release_index_ > kMaxPages) release_index_ = 0; SpanList* slist = (release_index_ == kMaxPages) ? &large_ : &free_[release_index_]; if (!DLL_IsEmpty(&slist->normal)) { Length released_len = ReleaseLastNormalSpan(slist); // Some systems do not support release if (released_len == 0) return released_pages; released_pages += released_len; } } } return released_pages; } bool PageHeap::EnsureLimit(Length n, bool withRelease) { Length limit = (FLAGS_tcmalloc_heap_limit_mb*1024*1024) >> kPageShift; if (limit == 0) return true; //there is no limit // We do not use stats_.system_bytes because it does not take // MetaDataAllocs into account. Length takenPages = TCMalloc_SystemTaken >> kPageShift; //XXX takenPages may be slightly bigger than limit for two reasons: //* MetaDataAllocs ignore the limit (it is not easy to handle // out of memory there) //* sys_alloc may round allocation up to huge page size, // although smaller limit was ensured ASSERT(takenPages >= stats_.unmapped_bytes >> kPageShift); takenPages -= stats_.unmapped_bytes >> kPageShift; if (takenPages + n > limit && withRelease) { takenPages -= ReleaseAtLeastNPages(takenPages + n - limit); } return takenPages + n <= limit; } void PageHeap::RegisterSizeClass(Span* span, size_t sc) { // Associate span object with all interior pages as well ASSERT(span->location == Span::IN_USE); ASSERT(GetDescriptor(span->start) == span); ASSERT(GetDescriptor(span->start+span->length-1) == span); Event(span, 'C', sc); span->sizeclass = sc; for (Length i = 1; i < span->length-1; i++) { pagemap_.set(span->start+i, span); } } void PageHeap::GetSmallSpanStats(SmallSpanStats* result) { for (int s = 0; s < kMaxPages; s++) { result->normal_length[s] = DLL_Length(&free_[s].normal); result->returned_length[s] = DLL_Length(&free_[s].returned); } } void PageHeap::GetLargeSpanStats(LargeSpanStats* result) { result->spans = 0; result->normal_pages = 0; result->returned_pages = 0; for (Span* s = large_.normal.next; s != &large_.normal; s = s->next) { result->normal_pages += s->length;; result->spans++; } for (Span* s = large_.returned.next; s != &large_.returned; s = s->next) { result->returned_pages += s->length; result->spans++; } } bool PageHeap::GetNextRange(PageID start, base::MallocRange* r) { Span* span = reinterpret_cast(pagemap_.Next(start)); if (span == NULL) { return false; } r->address = span->start << kPageShift; r->length = span->length << kPageShift; r->fraction = 0; switch (span->location) { case Span::IN_USE: r->type = base::MallocRange::INUSE; r->fraction = 1; if (span->sizeclass > 0) { // Only some of the objects in this span may be in use. const size_t osize = Static::sizemap()->class_to_size(span->sizeclass); r->fraction = (1.0 * osize * span->refcount) / r->length; } break; case Span::ON_NORMAL_FREELIST: r->type = base::MallocRange::FREE; break; case Span::ON_RETURNED_FREELIST: r->type = base::MallocRange::UNMAPPED; break; default: r->type = base::MallocRange::UNKNOWN; break; } return true; } static void RecordGrowth(size_t growth) { StackTrace* t = Static::stacktrace_allocator()->New(); t->depth = GetStackTrace(t->stack, kMaxStackDepth-1, 3); t->size = growth; t->stack[kMaxStackDepth-1] = reinterpret_cast(Static::growth_stacks()); Static::set_growth_stacks(t); } bool PageHeap::GrowHeap(Length n) { ASSERT(kMaxPages >= kMinSystemAlloc); if (n > kMaxValidPages) return false; Length ask = (n>kMinSystemAlloc) ? n : static_cast(kMinSystemAlloc); size_t actual_size; void* ptr = NULL; if (EnsureLimit(ask)) { ptr = TCMalloc_SystemAlloc(ask << kPageShift, &actual_size, kPageSize); } if (ptr == NULL) { if (n < ask) { // Try growing just "n" pages ask = n; if (EnsureLimit(ask)) { ptr = TCMalloc_SystemAlloc(ask << kPageShift, &actual_size, kPageSize); } } if (ptr == NULL) return false; } ask = actual_size >> kPageShift; RecordGrowth(ask << kPageShift); uint64_t old_system_bytes = stats_.system_bytes; stats_.system_bytes += (ask << kPageShift); stats_.committed_bytes += (ask << kPageShift); const PageID p = reinterpret_cast(ptr) >> kPageShift; ASSERT(p > 0); // If we have already a lot of pages allocated, just pre allocate a bunch of // memory for the page map. This prevents fragmentation by pagemap metadata // when a program keeps allocating and freeing large blocks. if (old_system_bytes < kPageMapBigAllocationThreshold && stats_.system_bytes >= kPageMapBigAllocationThreshold) { pagemap_.PreallocateMoreMemory(); } // Make sure pagemap_ has entries for all of the new pages. // Plus ensure one before and one after so coalescing code // does not need bounds-checking. if (pagemap_.Ensure(p-1, ask+2)) { // Pretend the new area is allocated and then Delete() it to cause // any necessary coalescing to occur. Span* span = NewSpan(p, ask); RecordSpan(span); Delete(span); ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes); ASSERT(Check()); return true; } else { // We could not allocate memory within "pagemap_" // TODO: Once we can return memory to the system, return the new span return false; } } bool PageHeap::Check() { ASSERT(free_[0].normal.next == &free_[0].normal); ASSERT(free_[0].returned.next == &free_[0].returned); return true; } bool PageHeap::CheckExpensive() { bool result = Check(); CheckList(&large_.normal, kMaxPages, 1000000000, Span::ON_NORMAL_FREELIST); CheckList(&large_.returned, kMaxPages, 1000000000, Span::ON_RETURNED_FREELIST); for (Length s = 1; s < kMaxPages; s++) { CheckList(&free_[s].normal, s, s, Span::ON_NORMAL_FREELIST); CheckList(&free_[s].returned, s, s, Span::ON_RETURNED_FREELIST); } return result; } bool PageHeap::CheckList(Span* list, Length min_pages, Length max_pages, int freelist) { for (Span* s = list->next; s != list; s = s->next) { CHECK_CONDITION(s->location == freelist); // NORMAL or RETURNED CHECK_CONDITION(s->length >= min_pages); CHECK_CONDITION(s->length <= max_pages); CHECK_CONDITION(GetDescriptor(s->start) == s); CHECK_CONDITION(GetDescriptor(s->start+s->length-1) == s); } return true; } } // namespace tcmalloc gperftools-2.4/src/sampler.cc0000755000000000000000000001162112440704174013202 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // All Rights Reserved. // // Author: Daniel Ford #include "sampler.h" #include // For min() #include #include "base/commandlineflags.h" using std::min; // The approximate gap in bytes between sampling actions. // I.e., we take one sample approximately once every // tcmalloc_sample_parameter bytes of allocation // i.e. about once every 512KB if value is 1<<19. #ifdef NO_TCMALLOC_SAMPLES DEFINE_int64(tcmalloc_sample_parameter, 0, "Unused: code is compiled with NO_TCMALLOC_SAMPLES"); #else DEFINE_int64(tcmalloc_sample_parameter, EnvToInt64("TCMALLOC_SAMPLE_PARAMETER", 0), "The approximate gap in bytes between sampling actions. " "This must be between 1 and 2^58."); #endif namespace tcmalloc { // Statics for Sampler double Sampler::log_table_[1<(i+0.5)/(1<(reinterpret_cast(this)); if (rnd_ == 0) { rnd_ = 1; } } // Step it forward 20 times for good measure for (int i = 0; i < 20; i++) { rnd_ = NextRandom(rnd_); } // Initialize counter bytes_until_sample_ = PickNextSamplingPoint(); } // Initialize the Statics for the Sampler class void Sampler::InitStatics() { PopulateFastLog2Table(); } // Generates a geometric variable with the specified mean (512K by default). // This is done by generating a random number between 0 and 1 and applying // the inverse cumulative distribution function for an exponential. // Specifically: Let m be the inverse of the sample period, then // the probability distribution function is m*exp(-mx) so the CDF is // p = 1 - exp(-mx), so // q = 1 - p = exp(-mx) // log_e(q) = -mx // -log_e(q)/m = x // log_2(q) * (-log_e(2) * 1/m) = x // In the code, q is actually in the range 1 to 2**26, hence the -26 below size_t Sampler::PickNextSamplingPoint() { rnd_ = NextRandom(rnd_); // Take the top 26 bits as the random number // (This plus the 1<<58 sampling bound give a max possible step of // 5194297183973780480 bytes.) const uint64_t prng_mod_power = 48; // Number of bits in prng // The uint32_t cast is to prevent a (hard-to-reproduce) NAN // under piii debug for some binaries. double q = static_cast(rnd_ >> (prng_mod_power - 26)) + 1.0; // Put the computed p-value through the CDF of a geometric. // For faster performance (save ~1/20th exec time), replace // min(0.0, FastLog2(q) - 26) by (Fastlog2(q) - 26.000705) // The value 26.000705 is used rather than 26 to compensate // for inaccuracies in FastLog2 which otherwise result in a // negative answer. return static_cast(min(0.0, (FastLog2(q) - 26)) * (-log(2.0) * FLAGS_tcmalloc_sample_parameter) + 1); } } // namespace tcmalloc gperftools-2.4/src/span.cc0000644000000000000000000000623312440704174012500 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include #include "span.h" #include // for NULL, memset #include "internal_logging.h" // for ASSERT #include "page_heap_allocator.h" // for PageHeapAllocator #include "static_vars.h" // for Static namespace tcmalloc { #ifdef SPAN_HISTORY void Event(Span* span, char op, int v = 0) { span->history[span->nexthistory] = op; span->value[span->nexthistory] = v; span->nexthistory++; if (span->nexthistory == sizeof(span->history)) span->nexthistory = 0; } #endif Span* NewSpan(PageID p, Length len) { Span* result = Static::span_allocator()->New(); memset(result, 0, sizeof(*result)); result->start = p; result->length = len; #ifdef SPAN_HISTORY result->nexthistory = 0; #endif return result; } void DeleteSpan(Span* span) { #ifndef NDEBUG // In debug mode, trash the contents of deleted Spans memset(span, 0x3f, sizeof(*span)); #endif Static::span_allocator()->Delete(span); } void DLL_Init(Span* list) { list->next = list; list->prev = list; } void DLL_Remove(Span* span) { span->prev->next = span->next; span->next->prev = span->prev; span->prev = NULL; span->next = NULL; } int DLL_Length(const Span* list) { int result = 0; for (Span* s = list->next; s != list; s = s->next) { result++; } return result; } void DLL_Prepend(Span* list, Span* span) { ASSERT(span->next == NULL); ASSERT(span->prev == NULL); span->next = list->next; span->prev = list; list->next->prev = span; list->next = span; } } // namespace tcmalloc gperftools-2.4/src/stack_trace_table.cc0000644000000000000000000001137312440704174015172 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2009, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Andrew Fikes #include #include "stack_trace_table.h" #include // for NULL, memset #include "base/spinlock.h" // for SpinLockHolder #include "common.h" // for StackTrace #include "internal_logging.h" // for ASSERT, Log #include "page_heap_allocator.h" // for PageHeapAllocator #include "static_vars.h" // for Static namespace tcmalloc { bool StackTraceTable::Bucket::KeyEqual(uintptr_t h, const StackTrace& t) const { const bool eq = (this->hash == h && this->trace.depth == t.depth); for (int i = 0; eq && i < t.depth; ++i) { if (this->trace.stack[i] != t.stack[i]) { return false; } } return eq; } StackTraceTable::StackTraceTable() : error_(false), depth_total_(0), bucket_total_(0), table_(new Bucket*[kHashTableSize]()) { memset(table_, 0, kHashTableSize * sizeof(Bucket*)); } StackTraceTable::~StackTraceTable() { delete[] table_; } void StackTraceTable::AddTrace(const StackTrace& t) { if (error_) { return; } // Hash function borrowed from base/heap-profile-table.cc uintptr_t h = 0; for (int i = 0; i < t.depth; ++i) { h += reinterpret_cast(t.stack[i]); h += h << 10; h ^= h >> 6; } h += h << 3; h ^= h >> 11; const int idx = h % kHashTableSize; Bucket* b = table_[idx]; while (b != NULL && !b->KeyEqual(h, t)) { b = b->next; } if (b != NULL) { b->count++; b->trace.size += t.size; // keep cumulative size } else { depth_total_ += t.depth; bucket_total_++; b = Static::bucket_allocator()->New(); if (b == NULL) { Log(kLog, __FILE__, __LINE__, "tcmalloc: could not allocate bucket", sizeof(*b)); error_ = true; } else { b->hash = h; b->trace = t; b->count = 1; b->next = table_[idx]; table_[idx] = b; } } } void** StackTraceTable::ReadStackTracesAndClear() { if (error_) { return NULL; } // Allocate output array const int out_len = bucket_total_ * 3 + depth_total_ + 1; void** out = new void*[out_len]; if (out == NULL) { Log(kLog, __FILE__, __LINE__, "tcmalloc: allocation failed for stack traces", out_len * sizeof(*out)); return NULL; } // Fill output array int idx = 0; for (int i = 0; i < kHashTableSize; ++i) { Bucket* b = table_[i]; while (b != NULL) { out[idx++] = reinterpret_cast(static_cast(b->count)); out[idx++] = reinterpret_cast(b->trace.size); // cumulative size out[idx++] = reinterpret_cast(b->trace.depth); for (int d = 0; d < b->trace.depth; ++d) { out[idx++] = b->trace.stack[d]; } b = b->next; } } out[idx++] = NULL; ASSERT(idx == out_len); // Clear state error_ = false; depth_total_ = 0; bucket_total_ = 0; SpinLockHolder h(Static::pageheap_lock()); for (int i = 0; i < kHashTableSize; ++i) { Bucket* b = table_[i]; while (b != NULL) { Bucket* next = b->next; Static::bucket_allocator()->Delete(b); b = next; } table_[i] = NULL; } return out; } } // namespace tcmalloc gperftools-2.4/src/static_vars.cc0000644000000000000000000001075512450132572014063 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Ken Ashcraft #include #include "static_vars.h" #include // for NULL #include // for operator new #ifdef HAVE_PTHREAD #include // for pthread_atfork #endif #include "internal_logging.h" // for CHECK_CONDITION #include "common.h" #include "sampler.h" // for Sampler #include "getenv_safe.h" // TCMallocGetenvSafe #include "base/googleinit.h" namespace tcmalloc { #if defined(HAVE_FORK) && defined(HAVE_PTHREAD) // These following two functions are registered via pthread_atfork to make // sure the central_cache locks remain in a consisten state in the forked // version of the thread. static void CentralCacheLockAll() { Static::pageheap_lock()->Lock(); for (int i = 0; i < kNumClasses; ++i) Static::central_cache()[i].Lock(); } static void CentralCacheUnlockAll() { for (int i = 0; i < kNumClasses; ++i) Static::central_cache()[i].Unlock(); Static::pageheap_lock()->Unlock(); } #endif SpinLock Static::pageheap_lock_(SpinLock::LINKER_INITIALIZED); SizeMap Static::sizemap_; CentralFreeListPadded Static::central_cache_[kNumClasses]; PageHeapAllocator Static::span_allocator_; PageHeapAllocator Static::stacktrace_allocator_; Span Static::sampled_objects_; PageHeapAllocator Static::bucket_allocator_; StackTrace* Static::growth_stacks_ = NULL; PageHeap* Static::pageheap_ = NULL; void Static::InitStaticVars() { sizemap_.Init(); span_allocator_.Init(); span_allocator_.New(); // Reduce cache conflicts span_allocator_.New(); // Reduce cache conflicts stacktrace_allocator_.Init(); bucket_allocator_.Init(); // Do a bit of sanitizing: make sure central_cache is aligned properly CHECK_CONDITION((sizeof(central_cache_[0]) % 64) == 0); for (int i = 0; i < kNumClasses; ++i) { central_cache_[i].Init(i); } // It's important to have PageHeap allocated, not in static storage, // so that HeapLeakChecker does not consider all the byte patterns stored // in is caches as pointers that are sources of heap object liveness, // which leads to it missing some memory leaks. pageheap_ = new (MetaDataAlloc(sizeof(PageHeap))) PageHeap; bool aggressive_decommit = tcmalloc::commandlineflags::StringToBool( TCMallocGetenvSafe("TCMALLOC_AGGRESSIVE_DECOMMIT"), true); pageheap_->SetAggressiveDecommit(aggressive_decommit); DLL_Init(&sampled_objects_); Sampler::InitStatics(); } #if defined(HAVE_FORK) && defined(HAVE_PTHREAD) static inline void SetupAtForkLocksHandler() { pthread_atfork(CentralCacheLockAll, // parent calls before fork CentralCacheUnlockAll, // parent calls after fork CentralCacheUnlockAll); // child calls after fork } REGISTER_MODULE_INITIALIZER(tcmalloc_fork_handler, SetupAtForkLocksHandler()); #endif } // namespace tcmalloc gperftools-2.4/src/symbolize.cc0000755000000000000000000002563212440704174013563 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2009, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // This forks out to pprof to do the actual symbolizing. We might // be better off writing our own in C++. #include "config.h" #include "symbolize.h" #include #ifdef HAVE_UNISTD_H #include // for write() #endif #ifdef HAVE_SYS_SOCKET_H #include // for socketpair() -- needed by Symbolize #endif #ifdef HAVE_SYS_WAIT_H #include // for wait() -- needed by Symbolize #endif #ifdef HAVE_POLL_H #include #endif #ifdef __MACH__ #include // for GetProgramInvocationName() #include // for PATH_MAX #endif #if defined(__CYGWIN__) || defined(__CYGWIN32__) #include // for get_osfhandle() #endif #include #include "base/commandlineflags.h" #include "base/logging.h" #include "base/sysinfo.h" using std::string; using tcmalloc::DumpProcSelfMaps; // from sysinfo.h DEFINE_string(symbolize_pprof, EnvToString("PPROF_PATH", "pprof"), "Path to pprof to call for reporting function names."); // heap_profile_table_pprof may be referenced after destructors are // called (since that's when leak-checking is done), so we make // a more-permanent copy that won't ever get destroyed. static string* g_pprof_path = new string(FLAGS_symbolize_pprof); // Returns NULL if we're on an OS where we can't get the invocation name. // Using a static var is ok because we're not called from a thread. static const char* GetProgramInvocationName() { #if defined(HAVE_PROGRAM_INVOCATION_NAME) #ifdef __UCLIBC__ extern const char* program_invocation_name; // uclibc provides this #else extern char* program_invocation_name; // gcc provides this #endif return program_invocation_name; #elif defined(__MACH__) // We don't want to allocate memory for this since we may be // calculating it when memory is corrupted. static char program_invocation_name[PATH_MAX]; if (program_invocation_name[0] == '\0') { // first time calculating uint32_t length = sizeof(program_invocation_name); if (_NSGetExecutablePath(program_invocation_name, &length)) return NULL; } return program_invocation_name; #else return NULL; // figure out a way to get argv[0] #endif } // Prints an error message when you can't run Symbolize(). static void PrintError(const char* reason) { RAW_LOG(ERROR, "*** WARNING: Cannot convert addresses to symbols in output below.\n" "*** Reason: %s\n" "*** If you cannot fix this, try running pprof directly.\n", reason); } void SymbolTable::Add(const void* addr) { symbolization_table_[addr] = ""; } const char* SymbolTable::GetSymbol(const void* addr) { return symbolization_table_[addr]; } // Updates symbolization_table with the pointers to symbol names corresponding // to its keys. The symbol names are stored in out, which is allocated and // freed by the caller of this routine. // Note that the forking/etc is not thread-safe or re-entrant. That's // ok for the purpose we need -- reporting leaks detected by heap-checker // -- but be careful if you decide to use this routine for other purposes. // Returns number of symbols read on error. If can't symbolize, returns 0 // and emits an error message about why. int SymbolTable::Symbolize() { #if !defined(HAVE_UNISTD_H) || !defined(HAVE_SYS_SOCKET_H) || !defined(HAVE_SYS_WAIT_H) PrintError("Perftools does not know how to call a sub-process on this O/S"); return 0; #else const char* argv0 = GetProgramInvocationName(); if (argv0 == NULL) { // can't call symbolize if we can't figure out our name PrintError("Cannot figure out the name of this executable (argv0)"); return 0; } if (access(g_pprof_path->c_str(), R_OK) != 0) { PrintError("Cannot find 'pprof' (is PPROF_PATH set correctly?)"); return 0; } // All this work is to do two-way communication. ugh. int *child_in = NULL; // file descriptors int *child_out = NULL; // for now, we don't worry about child_err int child_fds[5][2]; // socketpair may be called up to five times below // The client program may close its stdin and/or stdout and/or stderr // thus allowing socketpair to reuse file descriptors 0, 1 or 2. // In this case the communication between the forked processes may be broken // if either the parent or the child tries to close or duplicate these // descriptors. The loop below produces two pairs of file descriptors, each // greater than 2 (stderr). for (int i = 0; i < 5; i++) { if (socketpair(AF_UNIX, SOCK_STREAM, 0, child_fds[i]) == -1) { for (int j = 0; j < i; j++) { close(child_fds[j][0]); close(child_fds[j][1]); PrintError("Cannot create a socket pair"); } return 0; } else { if ((child_fds[i][0] > 2) && (child_fds[i][1] > 2)) { if (child_in == NULL) { child_in = child_fds[i]; } else { child_out = child_fds[i]; for (int j = 0; j < i; j++) { if (child_fds[j] == child_in) continue; close(child_fds[j][0]); close(child_fds[j][1]); } break; } } } } switch (fork()) { case -1: { // error close(child_in[0]); close(child_in[1]); close(child_out[0]); close(child_out[1]); PrintError("Unknown error calling fork()"); return 0; } case 0: { // child close(child_in[1]); // child uses the 0's, parent uses the 1's close(child_out[1]); // child uses the 0's, parent uses the 1's close(0); close(1); if (dup2(child_in[0], 0) == -1) _exit(1); if (dup2(child_out[0], 1) == -1) _exit(2); // Unset vars that might cause trouble when we fork unsetenv("CPUPROFILE"); unsetenv("HEAPPROFILE"); unsetenv("HEAPCHECK"); unsetenv("PERFTOOLS_VERBOSE"); execlp(g_pprof_path->c_str(), g_pprof_path->c_str(), "--symbols", argv0, NULL); _exit(3); // if execvp fails, it's bad news for us } default: { // parent close(child_in[0]); // child uses the 0's, parent uses the 1's close(child_out[0]); // child uses the 0's, parent uses the 1's #ifdef HAVE_POLL_H // Waiting for 1ms seems to give the OS time to notice any errors. poll(0, 0, 1); // For maximum safety, we check to make sure the execlp // succeeded before trying to write. (Otherwise we'll get a // SIGPIPE.) For systems without poll.h, we'll just skip this // check, and trust that the user set PPROF_PATH correctly! struct pollfd pfd = { child_in[1], POLLOUT, 0 }; if (!poll(&pfd, 1, 0) || !(pfd.revents & POLLOUT) || (pfd.revents & (POLLHUP|POLLERR))) { PrintError("Cannot run 'pprof' (is PPROF_PATH set correctly?)"); return 0; } #endif #if defined(__CYGWIN__) || defined(__CYGWIN32__) // On cygwin, DumpProcSelfMaps() takes a HANDLE, not an fd. Convert. const HANDLE symbols_handle = (HANDLE) get_osfhandle(child_in[1]); DumpProcSelfMaps(symbols_handle); #else DumpProcSelfMaps(child_in[1]); // what pprof expects on stdin #endif // Allocate 24 bytes = ("0x" + 8 bytes + "\n" + overhead) for each // address to feed to pprof. const int kOutBufSize = 24 * symbolization_table_.size(); char *pprof_buffer = new char[kOutBufSize]; int written = 0; for (SymbolMap::const_iterator iter = symbolization_table_.begin(); iter != symbolization_table_.end(); ++iter) { written += snprintf(pprof_buffer + written, kOutBufSize - written, // pprof expects format to be 0xXXXXXX "0x%" PRIxPTR "\n", reinterpret_cast(iter->first)); } write(child_in[1], pprof_buffer, strlen(pprof_buffer)); close(child_in[1]); // that's all we need to write const int kSymbolBufferSize = kSymbolSize * symbolization_table_.size(); int total_bytes_read = 0; delete[] symbol_buffer_; symbol_buffer_ = new char[kSymbolBufferSize]; memset(symbol_buffer_, '\0', kSymbolBufferSize); while (1) { int bytes_read = read(child_out[1], symbol_buffer_ + total_bytes_read, kSymbolBufferSize - total_bytes_read); if (bytes_read < 0) { close(child_out[1]); PrintError("Cannot read data from pprof"); return 0; } else if (bytes_read == 0) { close(child_out[1]); wait(NULL); break; } else { total_bytes_read += bytes_read; } } // We have successfully read the output of pprof into out. Make sure // the last symbol is full (we can tell because it ends with a \n). if (total_bytes_read == 0 || symbol_buffer_[total_bytes_read - 1] != '\n') return 0; // make the symbolization_table_ values point to the output vector SymbolMap::iterator fill = symbolization_table_.begin(); int num_symbols = 0; const char *current_name = symbol_buffer_; for (int i = 0; i < total_bytes_read; i++) { if (symbol_buffer_[i] == '\n') { fill->second = current_name; symbol_buffer_[i] = '\0'; current_name = symbol_buffer_ + i + 1; fill++; num_symbols++; } } return num_symbols; } } PrintError("Unkown error (should never occur!)"); return 0; // shouldn't be reachable #endif } gperftools-2.4/src/thread_cache.cc0000644000000000000000000004116512450132572014132 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Ken Ashcraft #include #include "thread_cache.h" #include #include // for memcpy #include // for max, min #include "base/commandlineflags.h" // for SpinLockHolder #include "base/spinlock.h" // for SpinLockHolder #include "getenv_safe.h" // for TCMallocGetenvSafe #include "central_freelist.h" // for CentralFreeListPadded #include "maybe_threads.h" using std::min; using std::max; // Note: this is initialized manually in InitModule to ensure that // it's configured at right time // // DEFINE_int64(tcmalloc_max_total_thread_cache_bytes, // EnvToInt64("TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES", // kDefaultOverallThreadCacheSize), // "Bound on the total amount of bytes allocated to " // "thread caches. This bound is not strict, so it is possible " // "for the cache to go over this bound in certain circumstances. " // "Maximum value of this flag is capped to 1 GB."); namespace tcmalloc { static bool phinited = false; volatile size_t ThreadCache::per_thread_cache_size_ = kMaxThreadCacheSize; size_t ThreadCache::overall_thread_cache_size_ = kDefaultOverallThreadCacheSize; ssize_t ThreadCache::unclaimed_cache_space_ = kDefaultOverallThreadCacheSize; PageHeapAllocator threadcache_allocator; ThreadCache* ThreadCache::thread_heaps_ = NULL; int ThreadCache::thread_heap_count_ = 0; ThreadCache* ThreadCache::next_memory_steal_ = NULL; #ifdef HAVE_TLS __thread ThreadCache::ThreadLocalData ThreadCache::threadlocal_data_ ATTR_INITIAL_EXEC = {0, 0}; #endif bool ThreadCache::tsd_inited_ = false; pthread_key_t ThreadCache::heap_key_; void ThreadCache::Init(pthread_t tid) { size_ = 0; max_size_ = 0; IncreaseCacheLimitLocked(); if (max_size_ == 0) { // There isn't enough memory to go around. Just give the minimum to // this thread. max_size_ = kMinThreadCacheSize; // Take unclaimed_cache_space_ negative. unclaimed_cache_space_ -= kMinThreadCacheSize; ASSERT(unclaimed_cache_space_ < 0); } next_ = NULL; prev_ = NULL; tid_ = tid; in_setspecific_ = false; for (size_t cl = 0; cl < kNumClasses; ++cl) { list_[cl].Init(); } uint32_t sampler_seed; memcpy(&sampler_seed, &tid, sizeof(sampler_seed)); sampler_.Init(sampler_seed); } void ThreadCache::Cleanup() { // Put unused memory back into central cache for (int cl = 0; cl < kNumClasses; ++cl) { if (list_[cl].length() > 0) { ReleaseToCentralCache(&list_[cl], cl, list_[cl].length()); } } } // Remove some objects of class "cl" from central cache and add to thread heap. // On success, return the first object for immediate use; otherwise return NULL. void* ThreadCache::FetchFromCentralCache(size_t cl, size_t byte_size) { FreeList* list = &list_[cl]; ASSERT(list->empty()); const int batch_size = Static::sizemap()->num_objects_to_move(cl); const int num_to_move = min(list->max_length(), batch_size); void *start, *end; int fetch_count = Static::central_cache()[cl].RemoveRange( &start, &end, num_to_move); ASSERT((start == NULL) == (fetch_count == 0)); if (--fetch_count >= 0) { size_ += byte_size * fetch_count; list->PushRange(fetch_count, SLL_Next(start), end); } // Increase max length slowly up to batch_size. After that, // increase by batch_size in one shot so that the length is a // multiple of batch_size. if (list->max_length() < batch_size) { list->set_max_length(list->max_length() + 1); } else { // Don't let the list get too long. In 32 bit builds, the length // is represented by a 16 bit int, so we need to watch out for // integer overflow. int new_length = min(list->max_length() + batch_size, kMaxDynamicFreeListLength); // The list's max_length must always be a multiple of batch_size, // and kMaxDynamicFreeListLength is not necessarily a multiple // of batch_size. new_length -= new_length % batch_size; ASSERT(new_length % batch_size == 0); list->set_max_length(new_length); } return start; } void ThreadCache::ListTooLong(FreeList* list, size_t cl) { const int batch_size = Static::sizemap()->num_objects_to_move(cl); ReleaseToCentralCache(list, cl, batch_size); // If the list is too long, we need to transfer some number of // objects to the central cache. Ideally, we would transfer // num_objects_to_move, so the code below tries to make max_length // converge on num_objects_to_move. if (list->max_length() < batch_size) { // Slow start the max_length so we don't overreserve. list->set_max_length(list->max_length() + 1); } else if (list->max_length() > batch_size) { // If we consistently go over max_length, shrink max_length. If we don't // shrink it, some amount of memory will always stay in this freelist. list->set_length_overages(list->length_overages() + 1); if (list->length_overages() > kMaxOverages) { ASSERT(list->max_length() > batch_size); list->set_max_length(list->max_length() - batch_size); list->set_length_overages(0); } } } // Remove some objects of class "cl" from thread heap and add to central cache void ThreadCache::ReleaseToCentralCache(FreeList* src, size_t cl, int N) { ASSERT(src == &list_[cl]); if (N > src->length()) N = src->length(); size_t delta_bytes = N * Static::sizemap()->ByteSizeForClass(cl); // We return prepackaged chains of the correct size to the central cache. // TODO: Use the same format internally in the thread caches? int batch_size = Static::sizemap()->num_objects_to_move(cl); while (N > batch_size) { void *tail, *head; src->PopRange(batch_size, &head, &tail); Static::central_cache()[cl].InsertRange(head, tail, batch_size); N -= batch_size; } void *tail, *head; src->PopRange(N, &head, &tail); Static::central_cache()[cl].InsertRange(head, tail, N); size_ -= delta_bytes; } // Release idle memory to the central cache void ThreadCache::Scavenge() { // If the low-water mark for the free list is L, it means we would // not have had to allocate anything from the central cache even if // we had reduced the free list size by L. We aim to get closer to // that situation by dropping L/2 nodes from the free list. This // may not release much memory, but if so we will call scavenge again // pretty soon and the low-water marks will be high on that call. //int64 start = CycleClock::Now(); for (int cl = 0; cl < kNumClasses; cl++) { FreeList* list = &list_[cl]; const int lowmark = list->lowwatermark(); if (lowmark > 0) { const int drop = (lowmark > 1) ? lowmark/2 : 1; ReleaseToCentralCache(list, cl, drop); // Shrink the max length if it isn't used. Only shrink down to // batch_size -- if the thread was active enough to get the max_length // above batch_size, it will likely be that active again. If // max_length shinks below batch_size, the thread will have to // go through the slow-start behavior again. The slow-start is useful // mainly for threads that stay relatively idle for their entire // lifetime. const int batch_size = Static::sizemap()->num_objects_to_move(cl); if (list->max_length() > batch_size) { list->set_max_length( max(list->max_length() - batch_size, batch_size)); } } list->clear_lowwatermark(); } IncreaseCacheLimit(); } void ThreadCache::IncreaseCacheLimit() { SpinLockHolder h(Static::pageheap_lock()); IncreaseCacheLimitLocked(); } void ThreadCache::IncreaseCacheLimitLocked() { if (unclaimed_cache_space_ > 0) { // Possibly make unclaimed_cache_space_ negative. unclaimed_cache_space_ -= kStealAmount; max_size_ += kStealAmount; return; } // Don't hold pageheap_lock too long. Try to steal from 10 other // threads before giving up. The i < 10 condition also prevents an // infinite loop in case none of the existing thread heaps are // suitable places to steal from. for (int i = 0; i < 10; ++i, next_memory_steal_ = next_memory_steal_->next_) { // Reached the end of the linked list. Start at the beginning. if (next_memory_steal_ == NULL) { ASSERT(thread_heaps_ != NULL); next_memory_steal_ = thread_heaps_; } if (next_memory_steal_ == this || next_memory_steal_->max_size_ <= kMinThreadCacheSize) { continue; } next_memory_steal_->max_size_ -= kStealAmount; max_size_ += kStealAmount; next_memory_steal_ = next_memory_steal_->next_; return; } } int ThreadCache::GetSamplePeriod() { return sampler_.GetSamplePeriod(); } void ThreadCache::InitModule() { SpinLockHolder h(Static::pageheap_lock()); if (!phinited) { const char *tcb = TCMallocGetenvSafe("TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES"); if (tcb) { set_overall_thread_cache_size(strtoll(tcb, NULL, 10)); } Static::InitStaticVars(); threadcache_allocator.Init(); phinited = 1; } } void ThreadCache::InitTSD() { ASSERT(!tsd_inited_); perftools_pthread_key_create(&heap_key_, DestroyThreadCache); tsd_inited_ = true; #ifdef PTHREADS_CRASHES_IF_RUN_TOO_EARLY // We may have used a fake pthread_t for the main thread. Fix it. pthread_t zero; memset(&zero, 0, sizeof(zero)); SpinLockHolder h(Static::pageheap_lock()); for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) { if (h->tid_ == zero) { h->tid_ = pthread_self(); } } #endif } ThreadCache* ThreadCache::CreateCacheIfNecessary() { // Initialize per-thread data if necessary ThreadCache* heap = NULL; { SpinLockHolder h(Static::pageheap_lock()); // On some old glibc's, and on freebsd's libc (as of freebsd 8.1), // calling pthread routines (even pthread_self) too early could // cause a segfault. Since we can call pthreads quite early, we // have to protect against that in such situations by making a // 'fake' pthread. This is not ideal since it doesn't work well // when linking tcmalloc statically with apps that create threads // before main, so we only do it if we have to. #ifdef PTHREADS_CRASHES_IF_RUN_TOO_EARLY pthread_t me; if (!tsd_inited_) { memset(&me, 0, sizeof(me)); } else { me = pthread_self(); } #else const pthread_t me = pthread_self(); #endif // This may be a recursive malloc call from pthread_setspecific() // In that case, the heap for this thread has already been created // and added to the linked list. So we search for that first. for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) { if (h->tid_ == me) { heap = h; break; } } if (heap == NULL) heap = NewHeap(me); } // We call pthread_setspecific() outside the lock because it may // call malloc() recursively. We check for the recursive call using // the "in_setspecific_" flag so that we can avoid calling // pthread_setspecific() if we are already inside pthread_setspecific(). if (!heap->in_setspecific_ && tsd_inited_) { heap->in_setspecific_ = true; perftools_pthread_setspecific(heap_key_, heap); #ifdef HAVE_TLS // Also keep a copy in __thread for faster retrieval threadlocal_data_.heap = heap; SetMinSizeForSlowPath(kMaxSize + 1); #endif heap->in_setspecific_ = false; } return heap; } ThreadCache* ThreadCache::NewHeap(pthread_t tid) { // Create the heap and add it to the linked list ThreadCache *heap = threadcache_allocator.New(); heap->Init(tid); heap->next_ = thread_heaps_; heap->prev_ = NULL; if (thread_heaps_ != NULL) { thread_heaps_->prev_ = heap; } else { // This is the only thread heap at the momment. ASSERT(next_memory_steal_ == NULL); next_memory_steal_ = heap; } thread_heaps_ = heap; thread_heap_count_++; return heap; } void ThreadCache::BecomeIdle() { if (!tsd_inited_) return; // No caches yet ThreadCache* heap = GetThreadHeap(); if (heap == NULL) return; // No thread cache to remove if (heap->in_setspecific_) return; // Do not disturb the active caller heap->in_setspecific_ = true; perftools_pthread_setspecific(heap_key_, NULL); #ifdef HAVE_TLS // Also update the copy in __thread threadlocal_data_.heap = NULL; SetMinSizeForSlowPath(0); #endif heap->in_setspecific_ = false; if (GetThreadHeap() == heap) { // Somehow heap got reinstated by a recursive call to malloc // from pthread_setspecific. We give up in this case. return; } // We can now get rid of the heap DeleteCache(heap); } void ThreadCache::DestroyThreadCache(void* ptr) { // Note that "ptr" cannot be NULL since pthread promises not // to invoke the destructor on NULL values, but for safety, // we check anyway. if (ptr == NULL) return; #ifdef HAVE_TLS // Prevent fast path of GetThreadHeap() from returning heap. threadlocal_data_.heap = NULL; SetMinSizeForSlowPath(0); #endif DeleteCache(reinterpret_cast(ptr)); } void ThreadCache::DeleteCache(ThreadCache* heap) { // Remove all memory from heap heap->Cleanup(); // Remove from linked list SpinLockHolder h(Static::pageheap_lock()); if (heap->next_ != NULL) heap->next_->prev_ = heap->prev_; if (heap->prev_ != NULL) heap->prev_->next_ = heap->next_; if (thread_heaps_ == heap) thread_heaps_ = heap->next_; thread_heap_count_--; if (next_memory_steal_ == heap) next_memory_steal_ = heap->next_; if (next_memory_steal_ == NULL) next_memory_steal_ = thread_heaps_; unclaimed_cache_space_ += heap->max_size_; threadcache_allocator.Delete(heap); } void ThreadCache::RecomputePerThreadCacheSize() { // Divide available space across threads int n = thread_heap_count_ > 0 ? thread_heap_count_ : 1; size_t space = overall_thread_cache_size_ / n; // Limit to allowed range if (space < kMinThreadCacheSize) space = kMinThreadCacheSize; if (space > kMaxThreadCacheSize) space = kMaxThreadCacheSize; double ratio = space / max(1, per_thread_cache_size_); size_t claimed = 0; for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) { // Increasing the total cache size should not circumvent the // slow-start growth of max_size_. if (ratio < 1.0) { h->max_size_ = static_cast(h->max_size_ * ratio); } claimed += h->max_size_; } unclaimed_cache_space_ = overall_thread_cache_size_ - claimed; per_thread_cache_size_ = space; } void ThreadCache::GetThreadStats(uint64_t* total_bytes, uint64_t* class_count) { for (ThreadCache* h = thread_heaps_; h != NULL; h = h->next_) { *total_bytes += h->Size(); if (class_count) { for (int cl = 0; cl < kNumClasses; ++cl) { class_count[cl] += h->freelist_length(cl); } } } } void ThreadCache::set_overall_thread_cache_size(size_t new_size) { // Clip the value to a reasonable range if (new_size < kMinThreadCacheSize) new_size = kMinThreadCacheSize; if (new_size > (1<<30)) new_size = (1<<30); // Limit to 1GB overall_thread_cache_size_ = new_size; RecomputePerThreadCacheSize(); } } // namespace tcmalloc gperftools-2.4/src/malloc_hook.cc0000644000000000000000000006230312450132572014024 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include // Disable the glibc prototype of mremap(), as older versions of the // system headers define this function with only four arguments, // whereas newer versions allow an optional fifth argument: #ifdef HAVE_MMAP # define mremap glibc_mremap # include # undef mremap #endif #include #ifdef HAVE_STDINT_H #include #endif #include #include "base/logging.h" #include "base/spinlock.h" #include "maybe_threads.h" #include "malloc_hook-inl.h" #include // This #ifdef should almost never be set. Set NO_TCMALLOC_SAMPLES if // you're porting to a system where you really can't get a stacktrace. #ifdef NO_TCMALLOC_SAMPLES // We use #define so code compiles even if you #include stacktrace.h somehow. # define GetStackTrace(stack, depth, skip) (0) #else # include #endif // __THROW is defined in glibc systems. It means, counter-intuitively, // "This function will never throw an exception." It's an optional // optimization tool, but we may need to use it to match glibc prototypes. #ifndef __THROW // I guess we're not on a glibc system # define __THROW // __THROW is just an optimization, so ok to make it "" #endif using std::copy; // Declaration of default weak initialization function, that can be overridden // by linking-in a strong definition (as heap-checker.cc does). This is // extern "C" so that it doesn't trigger gold's --detect-odr-violations warning, // which only looks at C++ symbols. // // This function is declared here as weak, and defined later, rather than a more // straightforward simple weak definition, as a workround for an icc compiler // issue ((Intel reference 290819). This issue causes icc to resolve weak // symbols too early, at compile rather than link time. By declaring it (weak) // here, then defining it below after its use, we can avoid the problem. extern "C" { ATTRIBUTE_WEAK void MallocHook_InitAtFirstAllocation_HeapLeakChecker(); } namespace { void RemoveInitialHooksAndCallInitializers(); // below. pthread_once_t once = PTHREAD_ONCE_INIT; // These hooks are installed in MallocHook as the only initial hooks. The first // hook that is called will run RemoveInitialHooksAndCallInitializers (see the // definition below) and then redispatch to any malloc hooks installed by // RemoveInitialHooksAndCallInitializers. // // Note(llib): there is a possibility of a race in the event that there are // multiple threads running before the first allocation. This is pretty // difficult to achieve, but if it is then multiple threads may concurrently do // allocations. The first caller will call // RemoveInitialHooksAndCallInitializers via one of the initial hooks. A // concurrent allocation may, depending on timing either: // * still have its initial malloc hook installed, run that and block on waiting // for the first caller to finish its call to // RemoveInitialHooksAndCallInitializers, and proceed normally. // * occur some time during the RemoveInitialHooksAndCallInitializers call, at // which point there could be no initial hooks and the subsequent hooks that // are about to be set up by RemoveInitialHooksAndCallInitializers haven't // been installed yet. I think the worst we can get is that some allocations // will not get reported to some hooks set by the initializers called from // RemoveInitialHooksAndCallInitializers. void InitialNewHook(const void* ptr, size_t size) { perftools_pthread_once(&once, &RemoveInitialHooksAndCallInitializers); MallocHook::InvokeNewHook(ptr, size); } void InitialPreMMapHook(const void* start, size_t size, int protection, int flags, int fd, off_t offset) { perftools_pthread_once(&once, &RemoveInitialHooksAndCallInitializers); MallocHook::InvokePreMmapHook(start, size, protection, flags, fd, offset); } void InitialPreSbrkHook(ptrdiff_t increment) { perftools_pthread_once(&once, &RemoveInitialHooksAndCallInitializers); MallocHook::InvokePreSbrkHook(increment); } // This function is called at most once by one of the above initial malloc // hooks. It removes all initial hooks and initializes all other clients that // want to get control at the very first memory allocation. The initializers // may assume that the initial malloc hooks have been removed. The initializers // may set up malloc hooks and allocate memory. void RemoveInitialHooksAndCallInitializers() { RAW_CHECK(MallocHook::RemoveNewHook(&InitialNewHook), ""); RAW_CHECK(MallocHook::RemovePreMmapHook(&InitialPreMMapHook), ""); RAW_CHECK(MallocHook::RemovePreSbrkHook(&InitialPreSbrkHook), ""); // HeapLeakChecker is currently the only module that needs to get control on // the first memory allocation, but one can add other modules by following the // same weak/strong function pattern. MallocHook_InitAtFirstAllocation_HeapLeakChecker(); } } // namespace // Weak default initialization function that must go after its use. extern "C" void MallocHook_InitAtFirstAllocation_HeapLeakChecker() { // Do nothing. } namespace base { namespace internal { // This lock is shared between all implementations of HookList::Add & Remove. // The potential for contention is very small. This needs to be a SpinLock and // not a Mutex since it's possible for Mutex locking to allocate memory (e.g., // per-thread allocation in debug builds), which could cause infinite recursion. static SpinLock hooklist_spinlock(base::LINKER_INITIALIZED); template bool HookList::Add(T value_as_t) { AtomicWord value = bit_cast(value_as_t); if (value == 0) { return false; } SpinLockHolder l(&hooklist_spinlock); // Find the first slot in data that is 0. int index = 0; while ((index < kHookListMaxValues) && (base::subtle::NoBarrier_Load(&priv_data[index]) != 0)) { ++index; } if (index == kHookListMaxValues) { return false; } AtomicWord prev_num_hooks = base::subtle::Acquire_Load(&priv_end); base::subtle::NoBarrier_Store(&priv_data[index], value); if (prev_num_hooks <= index) { base::subtle::NoBarrier_Store(&priv_end, index + 1); } return true; } template void HookList::FixupPrivEndLocked() { AtomicWord hooks_end = base::subtle::NoBarrier_Load(&priv_end); while ((hooks_end > 0) && (base::subtle::NoBarrier_Load(&priv_data[hooks_end - 1]) == 0)) { --hooks_end; } base::subtle::NoBarrier_Store(&priv_end, hooks_end); } template bool HookList::Remove(T value_as_t) { if (value_as_t == 0) { return false; } SpinLockHolder l(&hooklist_spinlock); AtomicWord hooks_end = base::subtle::NoBarrier_Load(&priv_end); int index = 0; while (index < hooks_end && value_as_t != bit_cast( base::subtle::NoBarrier_Load(&priv_data[index]))) { ++index; } if (index == hooks_end) { return false; } base::subtle::NoBarrier_Store(&priv_data[index], 0); FixupPrivEndLocked(); return true; } template int HookList::Traverse(T* output_array, int n) const { AtomicWord hooks_end = base::subtle::Acquire_Load(&priv_end); int actual_hooks_end = 0; for (int i = 0; i < hooks_end && n > 0; ++i) { AtomicWord data = base::subtle::Acquire_Load(&priv_data[i]); if (data != 0) { *output_array++ = bit_cast(data); ++actual_hooks_end; --n; } } return actual_hooks_end; } template T HookList::ExchangeSingular(T value_as_t) { AtomicWord value = bit_cast(value_as_t); AtomicWord old_value; SpinLockHolder l(&hooklist_spinlock); old_value = base::subtle::NoBarrier_Load(&priv_data[kHookListSingularIdx]); base::subtle::NoBarrier_Store(&priv_data[kHookListSingularIdx], value); if (value != 0) { base::subtle::NoBarrier_Store(&priv_end, kHookListSingularIdx + 1); } else { FixupPrivEndLocked(); } return bit_cast(old_value); } // Initialize a HookList (optionally with the given initial_value in index 0). #define INIT_HOOK_LIST { 0 } #define INIT_HOOK_LIST_WITH_VALUE(initial_value) \ { 1, { reinterpret_cast(initial_value) } } // Explicit instantiation for malloc_hook_test.cc. This ensures all the methods // are instantiated. template struct HookList; HookList new_hooks_ = INIT_HOOK_LIST_WITH_VALUE(&InitialNewHook); HookList delete_hooks_ = INIT_HOOK_LIST; HookList premmap_hooks_ = INIT_HOOK_LIST_WITH_VALUE(&InitialPreMMapHook); HookList mmap_hooks_ = INIT_HOOK_LIST; HookList munmap_hooks_ = INIT_HOOK_LIST; HookList mremap_hooks_ = INIT_HOOK_LIST; HookList presbrk_hooks_ = INIT_HOOK_LIST_WITH_VALUE(InitialPreSbrkHook); HookList sbrk_hooks_ = INIT_HOOK_LIST; // These lists contain either 0 or 1 hooks. HookList mmap_replacement_ = { 0 }; HookList munmap_replacement_ = { 0 }; #undef INIT_HOOK_LIST_WITH_VALUE #undef INIT_HOOK_LIST } } // namespace base::internal using base::internal::kHookListMaxValues; using base::internal::new_hooks_; using base::internal::delete_hooks_; using base::internal::premmap_hooks_; using base::internal::mmap_hooks_; using base::internal::mmap_replacement_; using base::internal::munmap_hooks_; using base::internal::munmap_replacement_; using base::internal::mremap_hooks_; using base::internal::presbrk_hooks_; using base::internal::sbrk_hooks_; // These are available as C bindings as well as C++, hence their // definition outside the MallocHook class. extern "C" int MallocHook_AddNewHook(MallocHook_NewHook hook) { RAW_VLOG(10, "AddNewHook(%p)", hook); return new_hooks_.Add(hook); } extern "C" int MallocHook_RemoveNewHook(MallocHook_NewHook hook) { RAW_VLOG(10, "RemoveNewHook(%p)", hook); return new_hooks_.Remove(hook); } extern "C" int MallocHook_AddDeleteHook(MallocHook_DeleteHook hook) { RAW_VLOG(10, "AddDeleteHook(%p)", hook); return delete_hooks_.Add(hook); } extern "C" int MallocHook_RemoveDeleteHook(MallocHook_DeleteHook hook) { RAW_VLOG(10, "RemoveDeleteHook(%p)", hook); return delete_hooks_.Remove(hook); } extern "C" int MallocHook_AddPreMmapHook(MallocHook_PreMmapHook hook) { RAW_VLOG(10, "AddPreMmapHook(%p)", hook); return premmap_hooks_.Add(hook); } extern "C" int MallocHook_RemovePreMmapHook(MallocHook_PreMmapHook hook) { RAW_VLOG(10, "RemovePreMmapHook(%p)", hook); return premmap_hooks_.Remove(hook); } extern "C" int MallocHook_SetMmapReplacement(MallocHook_MmapReplacement hook) { RAW_VLOG(10, "SetMmapReplacement(%p)", hook); // NOTE this is a best effort CHECK. Concurrent sets could succeed since // this test is outside of the Add spin lock. RAW_CHECK(mmap_replacement_.empty(), "Only one MMapReplacement is allowed."); return mmap_replacement_.Add(hook); } extern "C" int MallocHook_RemoveMmapReplacement(MallocHook_MmapReplacement hook) { RAW_VLOG(10, "RemoveMmapReplacement(%p)", hook); return mmap_replacement_.Remove(hook); } extern "C" int MallocHook_AddMmapHook(MallocHook_MmapHook hook) { RAW_VLOG(10, "AddMmapHook(%p)", hook); return mmap_hooks_.Add(hook); } extern "C" int MallocHook_RemoveMmapHook(MallocHook_MmapHook hook) { RAW_VLOG(10, "RemoveMmapHook(%p)", hook); return mmap_hooks_.Remove(hook); } extern "C" int MallocHook_AddMunmapHook(MallocHook_MunmapHook hook) { RAW_VLOG(10, "AddMunmapHook(%p)", hook); return munmap_hooks_.Add(hook); } extern "C" int MallocHook_RemoveMunmapHook(MallocHook_MunmapHook hook) { RAW_VLOG(10, "RemoveMunmapHook(%p)", hook); return munmap_hooks_.Remove(hook); } extern "C" int MallocHook_SetMunmapReplacement(MallocHook_MunmapReplacement hook) { RAW_VLOG(10, "SetMunmapReplacement(%p)", hook); // NOTE this is a best effort CHECK. Concurrent sets could succeed since // this test is outside of the Add spin lock. RAW_CHECK(munmap_replacement_.empty(), "Only one MunmapReplacement is allowed."); return munmap_replacement_.Add(hook); } extern "C" int MallocHook_RemoveMunmapReplacement(MallocHook_MunmapReplacement hook) { RAW_VLOG(10, "RemoveMunmapReplacement(%p)", hook); return munmap_replacement_.Remove(hook); } extern "C" int MallocHook_AddMremapHook(MallocHook_MremapHook hook) { RAW_VLOG(10, "AddMremapHook(%p)", hook); return mremap_hooks_.Add(hook); } extern "C" int MallocHook_RemoveMremapHook(MallocHook_MremapHook hook) { RAW_VLOG(10, "RemoveMremapHook(%p)", hook); return mremap_hooks_.Remove(hook); } extern "C" int MallocHook_AddPreSbrkHook(MallocHook_PreSbrkHook hook) { RAW_VLOG(10, "AddPreSbrkHook(%p)", hook); return presbrk_hooks_.Add(hook); } extern "C" int MallocHook_RemovePreSbrkHook(MallocHook_PreSbrkHook hook) { RAW_VLOG(10, "RemovePreSbrkHook(%p)", hook); return presbrk_hooks_.Remove(hook); } extern "C" int MallocHook_AddSbrkHook(MallocHook_SbrkHook hook) { RAW_VLOG(10, "AddSbrkHook(%p)", hook); return sbrk_hooks_.Add(hook); } extern "C" int MallocHook_RemoveSbrkHook(MallocHook_SbrkHook hook) { RAW_VLOG(10, "RemoveSbrkHook(%p)", hook); return sbrk_hooks_.Remove(hook); } // The code below is DEPRECATED. extern "C" MallocHook_NewHook MallocHook_SetNewHook(MallocHook_NewHook hook) { RAW_VLOG(10, "SetNewHook(%p)", hook); return new_hooks_.ExchangeSingular(hook); } extern "C" MallocHook_DeleteHook MallocHook_SetDeleteHook(MallocHook_DeleteHook hook) { RAW_VLOG(10, "SetDeleteHook(%p)", hook); return delete_hooks_.ExchangeSingular(hook); } extern "C" MallocHook_PreMmapHook MallocHook_SetPreMmapHook(MallocHook_PreMmapHook hook) { RAW_VLOG(10, "SetPreMmapHook(%p)", hook); return premmap_hooks_.ExchangeSingular(hook); } extern "C" MallocHook_MmapHook MallocHook_SetMmapHook(MallocHook_MmapHook hook) { RAW_VLOG(10, "SetMmapHook(%p)", hook); return mmap_hooks_.ExchangeSingular(hook); } extern "C" MallocHook_MunmapHook MallocHook_SetMunmapHook(MallocHook_MunmapHook hook) { RAW_VLOG(10, "SetMunmapHook(%p)", hook); return munmap_hooks_.ExchangeSingular(hook); } extern "C" MallocHook_MremapHook MallocHook_SetMremapHook(MallocHook_MremapHook hook) { RAW_VLOG(10, "SetMremapHook(%p)", hook); return mremap_hooks_.ExchangeSingular(hook); } extern "C" MallocHook_PreSbrkHook MallocHook_SetPreSbrkHook(MallocHook_PreSbrkHook hook) { RAW_VLOG(10, "SetPreSbrkHook(%p)", hook); return presbrk_hooks_.ExchangeSingular(hook); } extern "C" MallocHook_SbrkHook MallocHook_SetSbrkHook(MallocHook_SbrkHook hook) { RAW_VLOG(10, "SetSbrkHook(%p)", hook); return sbrk_hooks_.ExchangeSingular(hook); } // End of DEPRECATED code section. // Note: embedding the function calls inside the traversal of HookList would be // very confusing, as it is legal for a hook to remove itself and add other // hooks. Doing traversal first, and then calling the hooks ensures we only // call the hooks registered at the start. #define INVOKE_HOOKS(HookType, hook_list, args) do { \ HookType hooks[kHookListMaxValues]; \ int num_hooks = hook_list.Traverse(hooks, kHookListMaxValues); \ for (int i = 0; i < num_hooks; ++i) { \ (*hooks[i])args; \ } \ } while (0) // There should only be one replacement. Return the result of the first // one, or false if there is none. #define INVOKE_REPLACEMENT(HookType, hook_list, args) do { \ HookType hooks[kHookListMaxValues]; \ int num_hooks = hook_list.Traverse(hooks, kHookListMaxValues); \ return (num_hooks > 0 && (*hooks[0])args); \ } while (0) void MallocHook::InvokeNewHookSlow(const void* p, size_t s) { INVOKE_HOOKS(NewHook, new_hooks_, (p, s)); } void MallocHook::InvokeDeleteHookSlow(const void* p) { INVOKE_HOOKS(DeleteHook, delete_hooks_, (p)); } void MallocHook::InvokePreMmapHookSlow(const void* start, size_t size, int protection, int flags, int fd, off_t offset) { INVOKE_HOOKS(PreMmapHook, premmap_hooks_, (start, size, protection, flags, fd, offset)); } void MallocHook::InvokeMmapHookSlow(const void* result, const void* start, size_t size, int protection, int flags, int fd, off_t offset) { INVOKE_HOOKS(MmapHook, mmap_hooks_, (result, start, size, protection, flags, fd, offset)); } bool MallocHook::InvokeMmapReplacementSlow(const void* start, size_t size, int protection, int flags, int fd, off_t offset, void** result) { INVOKE_REPLACEMENT(MmapReplacement, mmap_replacement_, (start, size, protection, flags, fd, offset, result)); } void MallocHook::InvokeMunmapHookSlow(const void* p, size_t s) { INVOKE_HOOKS(MunmapHook, munmap_hooks_, (p, s)); } bool MallocHook::InvokeMunmapReplacementSlow(const void* p, size_t s, int* result) { INVOKE_REPLACEMENT(MunmapReplacement, munmap_replacement_, (p, s, result)); } void MallocHook::InvokeMremapHookSlow(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr) { INVOKE_HOOKS(MremapHook, mremap_hooks_, (result, old_addr, old_size, new_size, flags, new_addr)); } void MallocHook::InvokePreSbrkHookSlow(ptrdiff_t increment) { INVOKE_HOOKS(PreSbrkHook, presbrk_hooks_, (increment)); } void MallocHook::InvokeSbrkHookSlow(const void* result, ptrdiff_t increment) { INVOKE_HOOKS(SbrkHook, sbrk_hooks_, (result, increment)); } #undef INVOKE_HOOKS DEFINE_ATTRIBUTE_SECTION_VARS(google_malloc); DECLARE_ATTRIBUTE_SECTION_VARS(google_malloc); // actual functions are in debugallocation.cc or tcmalloc.cc DEFINE_ATTRIBUTE_SECTION_VARS(malloc_hook); DECLARE_ATTRIBUTE_SECTION_VARS(malloc_hook); // actual functions are in this file, malloc_hook.cc, and low_level_alloc.cc #define ADDR_IN_ATTRIBUTE_SECTION(addr, name) \ (reinterpret_cast(ATTRIBUTE_SECTION_START(name)) <= \ reinterpret_cast(addr) && \ reinterpret_cast(addr) < \ reinterpret_cast(ATTRIBUTE_SECTION_STOP(name))) // Return true iff 'caller' is a return address within a function // that calls one of our hooks via MallocHook:Invoke*. // A helper for GetCallerStackTrace. static inline bool InHookCaller(const void* caller) { return ADDR_IN_ATTRIBUTE_SECTION(caller, google_malloc) || ADDR_IN_ATTRIBUTE_SECTION(caller, malloc_hook); // We can use one section for everything except tcmalloc_or_debug // due to its special linkage mode, which prevents merging of the sections. } #undef ADDR_IN_ATTRIBUTE_SECTION static bool checked_sections = false; static inline void CheckInHookCaller() { if (!checked_sections) { INIT_ATTRIBUTE_SECTION_VARS(google_malloc); if (ATTRIBUTE_SECTION_START(google_malloc) == ATTRIBUTE_SECTION_STOP(google_malloc)) { RAW_LOG(ERROR, "google_malloc section is missing, " "thus InHookCaller is broken!"); } INIT_ATTRIBUTE_SECTION_VARS(malloc_hook); if (ATTRIBUTE_SECTION_START(malloc_hook) == ATTRIBUTE_SECTION_STOP(malloc_hook)) { RAW_LOG(ERROR, "malloc_hook section is missing, " "thus InHookCaller is broken!"); } checked_sections = true; } } // We can improve behavior/compactness of this function // if we pass a generic test function (with a generic arg) // into the implementations for GetStackTrace instead of the skip_count. extern "C" int MallocHook_GetCallerStackTrace(void** result, int max_depth, int skip_count) { #if defined(NO_TCMALLOC_SAMPLES) return 0; #elif !defined(HAVE_ATTRIBUTE_SECTION_START) // Fall back to GetStackTrace and good old but fragile frame skip counts. // Note: this path is inaccurate when a hook is not called directly by an // allocation function but is daisy-chained through another hook, // search for MallocHook::(Get|Set|Invoke)* to find such cases. return GetStackTrace(result, max_depth, skip_count + int(DEBUG_MODE)); // due to -foptimize-sibling-calls in opt mode // there's no need for extra frame skip here then #else CheckInHookCaller(); // MallocHook caller determination via InHookCaller works, use it: static const int kMaxSkip = 32 + 6 + 3; // Constant tuned to do just one GetStackTrace call below in practice // and not get many frames that we don't actually need: // currently max passsed max_depth is 32, // max passed/needed skip_count is 6 // and 3 is to account for some hook daisy chaining. static const int kStackSize = kMaxSkip + 1; void* stack[kStackSize]; int depth = GetStackTrace(stack, kStackSize, 1); // skip this function frame if (depth == 0) // silenty propagate cases when GetStackTrace does not work return 0; for (int i = 0; i < depth; ++i) { // stack[0] is our immediate caller if (InHookCaller(stack[i])) { RAW_VLOG(10, "Found hooked allocator at %d: %p <- %p", i, stack[i], stack[i+1]); i += 1; // skip hook caller frame depth -= i; // correct depth if (depth > max_depth) depth = max_depth; copy(stack + i, stack + i + depth, result); if (depth < max_depth && depth + i == kStackSize) { // get frames for the missing depth depth += GetStackTrace(result + depth, max_depth - depth, 1 + kStackSize); } return depth; } } RAW_LOG(WARNING, "Hooked allocator frame not found, returning empty trace"); // If this happens try increasing kMaxSkip // or else something must be wrong with InHookCaller, // e.g. for every section used in InHookCaller // all functions in that section must be inside the same library. return 0; #endif } // On systems where we know how, we override mmap/munmap/mremap/sbrk // to provide support for calling the related hooks (in addition, // of course, to doing what these functions normally do). #if defined(__linux) # include "malloc_hook_mmap_linux.h" #elif defined(__FreeBSD__) # include "malloc_hook_mmap_freebsd.h" #else /*static*/void* MallocHook::UnhookedMMap(void *start, size_t length, int prot, int flags, int fd, off_t offset) { void* result; if (!MallocHook::InvokeMmapReplacement( start, length, prot, flags, fd, offset, &result)) { result = mmap(start, length, prot, flags, fd, offset); } return result; } /*static*/int MallocHook::UnhookedMUnmap(void *start, size_t length) { int result; if (!MallocHook::InvokeMunmapReplacement(start, length, &result)) { result = munmap(start, length); } return result; } #endif gperftools-2.4/src/malloc_extension.cc0000644000000000000000000003042012440704174015075 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat #include #include #include #include #if defined HAVE_STDINT_H #include #elif defined HAVE_INTTYPES_H #include #else #include #endif #include #include "base/dynamic_annotations.h" #include "base/sysinfo.h" // for FillProcSelfMaps #ifndef NO_HEAP_CHECK #include "gperftools/heap-checker.h" #endif #include "gperftools/malloc_extension.h" #include "gperftools/malloc_extension_c.h" #include "maybe_threads.h" #include "base/googleinit.h" using STL_NAMESPACE::string; using STL_NAMESPACE::vector; static void DumpAddressMap(string* result) { *result += "\nMAPPED_LIBRARIES:\n"; // We keep doubling until we get a fit const size_t old_resultlen = result->size(); for (int amap_size = 10240; amap_size < 10000000; amap_size *= 2) { result->resize(old_resultlen + amap_size); bool wrote_all = false; const int bytes_written = tcmalloc::FillProcSelfMaps(&((*result)[old_resultlen]), amap_size, &wrote_all); if (wrote_all) { // we fit! (*result)[old_resultlen + bytes_written] = '\0'; result->resize(old_resultlen + bytes_written); return; } } result->reserve(old_resultlen); // just don't print anything } // Note: this routine is meant to be called before threads are spawned. void MallocExtension::Initialize() { static bool initialize_called = false; if (initialize_called) return; initialize_called = true; #ifdef __GLIBC__ // GNU libc++ versions 3.3 and 3.4 obey the environment variables // GLIBCPP_FORCE_NEW and GLIBCXX_FORCE_NEW respectively. Setting // one of these variables forces the STL default allocator to call // new() or delete() for each allocation or deletion. Otherwise // the STL allocator tries to avoid the high cost of doing // allocations by pooling memory internally. However, tcmalloc // does allocations really fast, especially for the types of small // items one sees in STL, so it's better off just using us. // TODO: control whether we do this via an environment variable? setenv("GLIBCPP_FORCE_NEW", "1", false /* no overwrite*/); setenv("GLIBCXX_FORCE_NEW", "1", false /* no overwrite*/); // Now we need to make the setenv 'stick', which it may not do since // the env is flakey before main() is called. But luckily stl only // looks at this env var the first time it tries to do an alloc, and // caches what it finds. So we just cause an stl alloc here. string dummy("I need to be allocated"); dummy += "!"; // so the definition of dummy isn't optimized out #endif /* __GLIBC__ */ } // SysAllocator implementation SysAllocator::~SysAllocator() {} // Default implementation -- does nothing MallocExtension::~MallocExtension() { } bool MallocExtension::VerifyAllMemory() { return true; } bool MallocExtension::VerifyNewMemory(const void* p) { return true; } bool MallocExtension::VerifyArrayNewMemory(const void* p) { return true; } bool MallocExtension::VerifyMallocMemory(const void* p) { return true; } bool MallocExtension::GetNumericProperty(const char* property, size_t* value) { return false; } bool MallocExtension::SetNumericProperty(const char* property, size_t value) { return false; } void MallocExtension::GetStats(char* buffer, int length) { assert(length > 0); buffer[0] = '\0'; } bool MallocExtension::MallocMemoryStats(int* blocks, size_t* total, int histogram[kMallocHistogramSize]) { *blocks = 0; *total = 0; memset(histogram, 0, sizeof(*histogram) * kMallocHistogramSize); return true; } void** MallocExtension::ReadStackTraces(int* sample_period) { return NULL; } void** MallocExtension::ReadHeapGrowthStackTraces() { return NULL; } void MallocExtension::MarkThreadIdle() { // Default implementation does nothing } void MallocExtension::MarkThreadBusy() { // Default implementation does nothing } SysAllocator* MallocExtension::GetSystemAllocator() { return NULL; } void MallocExtension::SetSystemAllocator(SysAllocator *a) { // Default implementation does nothing } void MallocExtension::ReleaseToSystem(size_t num_bytes) { // Default implementation does nothing } void MallocExtension::ReleaseFreeMemory() { ReleaseToSystem(static_cast(-1)); // SIZE_T_MAX } void MallocExtension::SetMemoryReleaseRate(double rate) { // Default implementation does nothing } double MallocExtension::GetMemoryReleaseRate() { return -1.0; } size_t MallocExtension::GetEstimatedAllocatedSize(size_t size) { return size; } size_t MallocExtension::GetAllocatedSize(const void* p) { assert(GetOwnership(p) != kNotOwned); return 0; } MallocExtension::Ownership MallocExtension::GetOwnership(const void* p) { return kUnknownOwnership; } void MallocExtension::GetFreeListSizes( vector* v) { v->clear(); } // The current malloc extension object. static MallocExtension* current_instance; static void InitModule() { if (current_instance != NULL) { return; } current_instance = new MallocExtension; #ifndef NO_HEAP_CHECK HeapLeakChecker::IgnoreObject(current_instance); #endif } REGISTER_MODULE_INITIALIZER(malloc_extension_init, InitModule()) MallocExtension* MallocExtension::instance() { InitModule(); return current_instance; } void MallocExtension::Register(MallocExtension* implementation) { InitModule(); // When running under valgrind, our custom malloc is replaced with // valgrind's one and malloc extensions will not work. (Note: // callers should be responsible for checking that they are the // malloc that is really being run, before calling Register. This // is just here as an extra sanity check.) if (!RunningOnValgrind()) { current_instance = implementation; } } // ----------------------------------------------------------------------- // Heap sampling support // ----------------------------------------------------------------------- namespace { // Accessors uintptr_t Count(void** entry) { return reinterpret_cast(entry[0]); } uintptr_t Size(void** entry) { return reinterpret_cast(entry[1]); } uintptr_t Depth(void** entry) { return reinterpret_cast(entry[2]); } void* PC(void** entry, int i) { return entry[3+i]; } void PrintCountAndSize(MallocExtensionWriter* writer, uintptr_t count, uintptr_t size) { char buf[100]; snprintf(buf, sizeof(buf), "%6" PRIu64 ": %8" PRIu64 " [%6" PRIu64 ": %8" PRIu64 "] @", static_cast(count), static_cast(size), static_cast(count), static_cast(size)); writer->append(buf, strlen(buf)); } void PrintHeader(MallocExtensionWriter* writer, const char* label, void** entries) { // Compute the total count and total size uintptr_t total_count = 0; uintptr_t total_size = 0; for (void** entry = entries; Count(entry) != 0; entry += 3 + Depth(entry)) { total_count += Count(entry); total_size += Size(entry); } const char* const kTitle = "heap profile: "; writer->append(kTitle, strlen(kTitle)); PrintCountAndSize(writer, total_count, total_size); writer->append(" ", 1); writer->append(label, strlen(label)); writer->append("\n", 1); } void PrintStackEntry(MallocExtensionWriter* writer, void** entry) { PrintCountAndSize(writer, Count(entry), Size(entry)); for (int i = 0; i < Depth(entry); i++) { char buf[32]; snprintf(buf, sizeof(buf), " %p", PC(entry, i)); writer->append(buf, strlen(buf)); } writer->append("\n", 1); } } void MallocExtension::GetHeapSample(MallocExtensionWriter* writer) { int sample_period = 0; void** entries = ReadStackTraces(&sample_period); if (entries == NULL) { const char* const kErrorMsg = "This malloc implementation does not support sampling.\n" "As of 2005/01/26, only tcmalloc supports sampling, and\n" "you are probably running a binary that does not use\n" "tcmalloc.\n"; writer->append(kErrorMsg, strlen(kErrorMsg)); return; } char label[32]; sprintf(label, "heap_v2/%d", sample_period); PrintHeader(writer, label, entries); for (void** entry = entries; Count(entry) != 0; entry += 3 + Depth(entry)) { PrintStackEntry(writer, entry); } delete[] entries; DumpAddressMap(writer); } void MallocExtension::GetHeapGrowthStacks(MallocExtensionWriter* writer) { void** entries = ReadHeapGrowthStackTraces(); if (entries == NULL) { const char* const kErrorMsg = "This malloc implementation does not support " "ReadHeapGrowthStackTraces().\n" "As of 2005/09/27, only tcmalloc supports this, and you\n" "are probably running a binary that does not use tcmalloc.\n"; writer->append(kErrorMsg, strlen(kErrorMsg)); return; } // Do not canonicalize the stack entries, so that we get a // time-ordered list of stack traces, which may be useful if the // client wants to focus on the latest stack traces. PrintHeader(writer, "growth", entries); for (void** entry = entries; Count(entry) != 0; entry += 3 + Depth(entry)) { PrintStackEntry(writer, entry); } delete[] entries; DumpAddressMap(writer); } void MallocExtension::Ranges(void* arg, RangeFunction func) { // No callbacks by default } // These are C shims that work on the current instance. #define C_SHIM(fn, retval, paramlist, arglist) \ extern "C" PERFTOOLS_DLL_DECL retval MallocExtension_##fn paramlist { \ return MallocExtension::instance()->fn arglist; \ } C_SHIM(VerifyAllMemory, int, (void), ()); C_SHIM(VerifyNewMemory, int, (const void* p), (p)); C_SHIM(VerifyArrayNewMemory, int, (const void* p), (p)); C_SHIM(VerifyMallocMemory, int, (const void* p), (p)); C_SHIM(MallocMemoryStats, int, (int* blocks, size_t* total, int histogram[kMallocHistogramSize]), (blocks, total, histogram)); C_SHIM(GetStats, void, (char* buffer, int buffer_length), (buffer, buffer_length)); C_SHIM(GetNumericProperty, int, (const char* property, size_t* value), (property, value)); C_SHIM(SetNumericProperty, int, (const char* property, size_t value), (property, value)); C_SHIM(MarkThreadIdle, void, (void), ()); C_SHIM(MarkThreadBusy, void, (void), ()); C_SHIM(ReleaseFreeMemory, void, (void), ()); C_SHIM(ReleaseToSystem, void, (size_t num_bytes), (num_bytes)); C_SHIM(GetEstimatedAllocatedSize, size_t, (size_t size), (size)); C_SHIM(GetAllocatedSize, size_t, (const void* p), (p)); // Can't use the shim here because of the need to translate the enums. extern "C" MallocExtension_Ownership MallocExtension_GetOwnership(const void* p) { return static_cast( MallocExtension::instance()->GetOwnership(p)); } gperftools-2.4/src/heap-profile-table.cc0000644000000000000000000005057112440704174015203 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2006, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // Maxim Lifantsev (refactoring) // #include #ifdef HAVE_UNISTD_H #include // for write() #endif #include // for open() #ifdef HAVE_GLOB_H #include #ifndef GLOB_NOMATCH // true on some old cygwins # define GLOB_NOMATCH 0 #endif #endif #ifdef HAVE_INTTYPES_H #include // for PRIxPTR #endif #ifdef HAVE_POLL_H #include #endif #include #include #include #include #include // for sort(), equal(), and copy() #include "heap-profile-table.h" #include "base/logging.h" #include "raw_printer.h" #include "symbolize.h" #include #include #include "memory_region_map.h" #include "base/commandlineflags.h" #include "base/logging.h" // for the RawFD I/O commands #include "base/sysinfo.h" using std::sort; using std::equal; using std::copy; using std::string; using std::map; using tcmalloc::FillProcSelfMaps; // from sysinfo.h using tcmalloc::DumpProcSelfMaps; // from sysinfo.h //---------------------------------------------------------------------- DEFINE_bool(cleanup_old_heap_profiles, EnvToBool("HEAP_PROFILE_CLEANUP", true), "At initialization time, delete old heap profiles."); DEFINE_int32(heap_check_max_leaks, EnvToInt("HEAP_CHECK_MAX_LEAKS", 20), "The maximum number of leak reports to print."); //---------------------------------------------------------------------- // header of the dumped heap profile static const char kProfileHeader[] = "heap profile: "; static const char kProcSelfMapsHeader[] = "\nMAPPED_LIBRARIES:\n"; //---------------------------------------------------------------------- const char HeapProfileTable::kFileExt[] = ".heap"; //---------------------------------------------------------------------- static const int kHashTableSize = 179999; // Size for bucket_table_. /*static*/ const int HeapProfileTable::kMaxStackDepth; //---------------------------------------------------------------------- // We strip out different number of stack frames in debug mode // because less inlining happens in that case #ifdef NDEBUG static const int kStripFrames = 2; #else static const int kStripFrames = 3; #endif // For sorting Stats or Buckets by in-use space static bool ByAllocatedSpace(HeapProfileTable::Stats* a, HeapProfileTable::Stats* b) { // Return true iff "a" has more allocated space than "b" return (a->alloc_size - a->free_size) > (b->alloc_size - b->free_size); } //---------------------------------------------------------------------- HeapProfileTable::HeapProfileTable(Allocator alloc, DeAllocator dealloc, bool profile_mmap) : alloc_(alloc), dealloc_(dealloc), profile_mmap_(profile_mmap), bucket_table_(NULL), num_buckets_(0), address_map_(NULL) { // Make a hash table for buckets. const int table_bytes = kHashTableSize * sizeof(*bucket_table_); bucket_table_ = static_cast(alloc_(table_bytes)); memset(bucket_table_, 0, table_bytes); // Make an allocation map. address_map_ = new(alloc_(sizeof(AllocationMap))) AllocationMap(alloc_, dealloc_); // Initialize. memset(&total_, 0, sizeof(total_)); num_buckets_ = 0; } HeapProfileTable::~HeapProfileTable() { // Free the allocation map. address_map_->~AllocationMap(); dealloc_(address_map_); address_map_ = NULL; // Free the hash table. for (int i = 0; i < kHashTableSize; i++) { for (Bucket* curr = bucket_table_[i]; curr != 0; /**/) { Bucket* bucket = curr; curr = curr->next; dealloc_(bucket->stack); dealloc_(bucket); } } dealloc_(bucket_table_); bucket_table_ = NULL; } HeapProfileTable::Bucket* HeapProfileTable::GetBucket(int depth, const void* const key[]) { // Make hash-value uintptr_t h = 0; for (int i = 0; i < depth; i++) { h += reinterpret_cast(key[i]); h += h << 10; h ^= h >> 6; } h += h << 3; h ^= h >> 11; // Lookup stack trace in table unsigned int buck = ((unsigned int) h) % kHashTableSize; for (Bucket* b = bucket_table_[buck]; b != 0; b = b->next) { if ((b->hash == h) && (b->depth == depth) && equal(key, key + depth, b->stack)) { return b; } } // Create new bucket const size_t key_size = sizeof(key[0]) * depth; const void** kcopy = reinterpret_cast(alloc_(key_size)); copy(key, key + depth, kcopy); Bucket* b = reinterpret_cast(alloc_(sizeof(Bucket))); memset(b, 0, sizeof(*b)); b->hash = h; b->depth = depth; b->stack = kcopy; b->next = bucket_table_[buck]; bucket_table_[buck] = b; num_buckets_++; return b; } int HeapProfileTable::GetCallerStackTrace( int skip_count, void* stack[kMaxStackDepth]) { return MallocHook::GetCallerStackTrace( stack, kMaxStackDepth, kStripFrames + skip_count + 1); } void HeapProfileTable::RecordAlloc( const void* ptr, size_t bytes, int stack_depth, const void* const call_stack[]) { Bucket* b = GetBucket(stack_depth, call_stack); b->allocs++; b->alloc_size += bytes; total_.allocs++; total_.alloc_size += bytes; AllocValue v; v.set_bucket(b); // also did set_live(false); set_ignore(false) v.bytes = bytes; address_map_->Insert(ptr, v); } void HeapProfileTable::RecordFree(const void* ptr) { AllocValue v; if (address_map_->FindAndRemove(ptr, &v)) { Bucket* b = v.bucket(); b->frees++; b->free_size += v.bytes; total_.frees++; total_.free_size += v.bytes; } } bool HeapProfileTable::FindAlloc(const void* ptr, size_t* object_size) const { const AllocValue* alloc_value = address_map_->Find(ptr); if (alloc_value != NULL) *object_size = alloc_value->bytes; return alloc_value != NULL; } bool HeapProfileTable::FindAllocDetails(const void* ptr, AllocInfo* info) const { const AllocValue* alloc_value = address_map_->Find(ptr); if (alloc_value != NULL) { info->object_size = alloc_value->bytes; info->call_stack = alloc_value->bucket()->stack; info->stack_depth = alloc_value->bucket()->depth; } return alloc_value != NULL; } bool HeapProfileTable::FindInsideAlloc(const void* ptr, size_t max_size, const void** object_ptr, size_t* object_size) const { const AllocValue* alloc_value = address_map_->FindInside(&AllocValueSize, max_size, ptr, object_ptr); if (alloc_value != NULL) *object_size = alloc_value->bytes; return alloc_value != NULL; } bool HeapProfileTable::MarkAsLive(const void* ptr) { AllocValue* alloc = address_map_->FindMutable(ptr); if (alloc && !alloc->live()) { alloc->set_live(true); return true; } return false; } void HeapProfileTable::MarkAsIgnored(const void* ptr) { AllocValue* alloc = address_map_->FindMutable(ptr); if (alloc) { alloc->set_ignore(true); } } // We'd be happier using snprintfer, but we don't to reduce dependencies. int HeapProfileTable::UnparseBucket(const Bucket& b, char* buf, int buflen, int bufsize, const char* extra, Stats* profile_stats) { if (profile_stats != NULL) { profile_stats->allocs += b.allocs; profile_stats->alloc_size += b.alloc_size; profile_stats->frees += b.frees; profile_stats->free_size += b.free_size; } int printed = snprintf(buf + buflen, bufsize - buflen, "%6d: %8" PRId64 " [%6d: %8" PRId64 "] @%s", b.allocs - b.frees, b.alloc_size - b.free_size, b.allocs, b.alloc_size, extra); // If it looks like the snprintf failed, ignore the fact we printed anything if (printed < 0 || printed >= bufsize - buflen) return buflen; buflen += printed; for (int d = 0; d < b.depth; d++) { printed = snprintf(buf + buflen, bufsize - buflen, " 0x%08" PRIxPTR, reinterpret_cast(b.stack[d])); if (printed < 0 || printed >= bufsize - buflen) return buflen; buflen += printed; } printed = snprintf(buf + buflen, bufsize - buflen, "\n"); if (printed < 0 || printed >= bufsize - buflen) return buflen; buflen += printed; return buflen; } HeapProfileTable::Bucket** HeapProfileTable::MakeSortedBucketList() const { Bucket** list = static_cast(alloc_(sizeof(Bucket) * num_buckets_)); int bucket_count = 0; for (int i = 0; i < kHashTableSize; i++) { for (Bucket* curr = bucket_table_[i]; curr != 0; curr = curr->next) { list[bucket_count++] = curr; } } RAW_DCHECK(bucket_count == num_buckets_, ""); sort(list, list + num_buckets_, ByAllocatedSpace); return list; } void HeapProfileTable::IterateOrderedAllocContexts( AllocContextIterator callback) const { Bucket** list = MakeSortedBucketList(); AllocContextInfo info; for (int i = 0; i < num_buckets_; ++i) { *static_cast(&info) = *static_cast(list[i]); info.stack_depth = list[i]->depth; info.call_stack = list[i]->stack; callback(info); } dealloc_(list); } int HeapProfileTable::FillOrderedProfile(char buf[], int size) const { Bucket** list = MakeSortedBucketList(); // Our file format is "bucket, bucket, ..., bucket, proc_self_maps_info". // In the cases buf is too small, we'd rather leave out the last // buckets than leave out the /proc/self/maps info. To ensure that, // we actually print the /proc/self/maps info first, then move it to // the end of the buffer, then write the bucket info into whatever // is remaining, and then move the maps info one last time to close // any gaps. Whew! int map_length = snprintf(buf, size, "%s", kProcSelfMapsHeader); if (map_length < 0 || map_length >= size) return 0; bool dummy; // "wrote_all" -- did /proc/self/maps fit in its entirety? map_length += FillProcSelfMaps(buf + map_length, size - map_length, &dummy); RAW_DCHECK(map_length <= size, ""); char* const map_start = buf + size - map_length; // move to end memmove(map_start, buf, map_length); size -= map_length; Stats stats; memset(&stats, 0, sizeof(stats)); int bucket_length = snprintf(buf, size, "%s", kProfileHeader); if (bucket_length < 0 || bucket_length >= size) return 0; bucket_length = UnparseBucket(total_, buf, bucket_length, size, " heapprofile", &stats); // Dump the mmap list first. if (profile_mmap_) { BufferArgs buffer(buf, bucket_length, size); MemoryRegionMap::IterateBuckets(DumpBucketIterator, &buffer); bucket_length = buffer.buflen; } for (int i = 0; i < num_buckets_; i++) { bucket_length = UnparseBucket(*list[i], buf, bucket_length, size, "", &stats); } RAW_DCHECK(bucket_length < size, ""); dealloc_(list); RAW_DCHECK(buf + bucket_length <= map_start, ""); memmove(buf + bucket_length, map_start, map_length); // close the gap return bucket_length + map_length; } // static void HeapProfileTable::DumpBucketIterator(const Bucket* bucket, BufferArgs* args) { args->buflen = UnparseBucket(*bucket, args->buf, args->buflen, args->bufsize, "", NULL); } inline void HeapProfileTable::DumpNonLiveIterator(const void* ptr, AllocValue* v, const DumpArgs& args) { if (v->live()) { v->set_live(false); return; } if (v->ignore()) { return; } Bucket b; memset(&b, 0, sizeof(b)); b.allocs = 1; b.alloc_size = v->bytes; b.depth = v->bucket()->depth; b.stack = v->bucket()->stack; char buf[1024]; int len = UnparseBucket(b, buf, 0, sizeof(buf), "", args.profile_stats); RawWrite(args.fd, buf, len); } // Callback from NonLiveSnapshot; adds entry to arg->dest // if not the entry is not live and is not present in arg->base. void HeapProfileTable::AddIfNonLive(const void* ptr, AllocValue* v, AddNonLiveArgs* arg) { if (v->live()) { v->set_live(false); } else { if (arg->base != NULL && arg->base->map_.Find(ptr) != NULL) { // Present in arg->base, so do not save } else { arg->dest->Add(ptr, *v); } } } bool HeapProfileTable::WriteProfile(const char* file_name, const Bucket& total, AllocationMap* allocations) { RAW_VLOG(1, "Dumping non-live heap profile to %s", file_name); RawFD fd = RawOpenForWriting(file_name); if (fd != kIllegalRawFD) { RawWrite(fd, kProfileHeader, strlen(kProfileHeader)); char buf[512]; int len = UnparseBucket(total, buf, 0, sizeof(buf), " heapprofile", NULL); RawWrite(fd, buf, len); const DumpArgs args(fd, NULL); allocations->Iterate(DumpNonLiveIterator, args); RawWrite(fd, kProcSelfMapsHeader, strlen(kProcSelfMapsHeader)); DumpProcSelfMaps(fd); RawClose(fd); return true; } else { RAW_LOG(ERROR, "Failed dumping filtered heap profile to %s", file_name); return false; } } void HeapProfileTable::CleanupOldProfiles(const char* prefix) { if (!FLAGS_cleanup_old_heap_profiles) return; string pattern = string(prefix) + ".*" + kFileExt; #if defined(HAVE_GLOB_H) glob_t g; const int r = glob(pattern.c_str(), GLOB_ERR, NULL, &g); if (r == 0 || r == GLOB_NOMATCH) { const int prefix_length = strlen(prefix); for (int i = 0; i < g.gl_pathc; i++) { const char* fname = g.gl_pathv[i]; if ((strlen(fname) >= prefix_length) && (memcmp(fname, prefix, prefix_length) == 0)) { RAW_VLOG(1, "Removing old heap profile %s", fname); unlink(fname); } } } globfree(&g); #else /* HAVE_GLOB_H */ RAW_LOG(WARNING, "Unable to remove old heap profiles (can't run glob())"); #endif } HeapProfileTable::Snapshot* HeapProfileTable::TakeSnapshot() { Snapshot* s = new (alloc_(sizeof(Snapshot))) Snapshot(alloc_, dealloc_); address_map_->Iterate(AddToSnapshot, s); return s; } void HeapProfileTable::ReleaseSnapshot(Snapshot* s) { s->~Snapshot(); dealloc_(s); } // Callback from TakeSnapshot; adds a single entry to snapshot void HeapProfileTable::AddToSnapshot(const void* ptr, AllocValue* v, Snapshot* snapshot) { snapshot->Add(ptr, *v); } HeapProfileTable::Snapshot* HeapProfileTable::NonLiveSnapshot( Snapshot* base) { RAW_VLOG(2, "NonLiveSnapshot input: %d %d\n", int(total_.allocs - total_.frees), int(total_.alloc_size - total_.free_size)); Snapshot* s = new (alloc_(sizeof(Snapshot))) Snapshot(alloc_, dealloc_); AddNonLiveArgs args; args.dest = s; args.base = base; address_map_->Iterate(AddIfNonLive, &args); RAW_VLOG(2, "NonLiveSnapshot output: %d %d\n", int(s->total_.allocs - s->total_.frees), int(s->total_.alloc_size - s->total_.free_size)); return s; } // Information kept per unique bucket seen struct HeapProfileTable::Snapshot::Entry { int count; int bytes; Bucket* bucket; Entry() : count(0), bytes(0) { } // Order by decreasing bytes bool operator<(const Entry& x) const { return this->bytes > x.bytes; } }; // State used to generate leak report. We keep a mapping from Bucket pointer // the collected stats for that bucket. struct HeapProfileTable::Snapshot::ReportState { map buckets_; }; // Callback from ReportLeaks; updates ReportState. void HeapProfileTable::Snapshot::ReportCallback(const void* ptr, AllocValue* v, ReportState* state) { Entry* e = &state->buckets_[v->bucket()]; // Creates empty Entry first time e->bucket = v->bucket(); e->count++; e->bytes += v->bytes; } void HeapProfileTable::Snapshot::ReportLeaks(const char* checker_name, const char* filename, bool should_symbolize) { // This is only used by the heap leak checker, but is intimately // tied to the allocation map that belongs in this module and is // therefore placed here. RAW_LOG(ERROR, "Leak check %s detected leaks of %" PRIuS " bytes " "in %" PRIuS " objects", checker_name, size_t(total_.alloc_size), size_t(total_.allocs)); // Group objects by Bucket ReportState state; map_.Iterate(&ReportCallback, &state); // Sort buckets by decreasing leaked size const int n = state.buckets_.size(); Entry* entries = new Entry[n]; int dst = 0; for (map::const_iterator iter = state.buckets_.begin(); iter != state.buckets_.end(); ++iter) { entries[dst++] = iter->second; } sort(entries, entries + n); // Report a bounded number of leaks to keep the leak report from // growing too long. const int to_report = (FLAGS_heap_check_max_leaks > 0 && n > FLAGS_heap_check_max_leaks) ? FLAGS_heap_check_max_leaks : n; RAW_LOG(ERROR, "The %d largest leaks:", to_report); // Print SymbolTable symbolization_table; for (int i = 0; i < to_report; i++) { const Entry& e = entries[i]; for (int j = 0; j < e.bucket->depth; j++) { symbolization_table.Add(e.bucket->stack[j]); } } static const int kBufSize = 2<<10; char buffer[kBufSize]; if (should_symbolize) symbolization_table.Symbolize(); for (int i = 0; i < to_report; i++) { const Entry& e = entries[i]; base::RawPrinter printer(buffer, kBufSize); printer.Printf("Leak of %d bytes in %d objects allocated from:\n", e.bytes, e.count); for (int j = 0; j < e.bucket->depth; j++) { const void* pc = e.bucket->stack[j]; printer.Printf("\t@ %" PRIxPTR " %s\n", reinterpret_cast(pc), symbolization_table.GetSymbol(pc)); } RAW_LOG(ERROR, "%s", buffer); } if (to_report < n) { RAW_LOG(ERROR, "Skipping leaks numbered %d..%d", to_report, n-1); } delete[] entries; // TODO: Dump the sorted Entry list instead of dumping raw data? // (should be much shorter) if (!HeapProfileTable::WriteProfile(filename, total_, &map_)) { RAW_LOG(ERROR, "Could not write pprof profile to %s", filename); } } void HeapProfileTable::Snapshot::ReportObject(const void* ptr, AllocValue* v, char* unused) { // Perhaps also log the allocation stack trace (unsymbolized) // on this line in case somebody finds it useful. RAW_LOG(ERROR, "leaked %" PRIuS " byte object %p", v->bytes, ptr); } void HeapProfileTable::Snapshot::ReportIndividualObjects() { char unused; map_.Iterate(ReportObject, &unused); } gperftools-2.4/src/heap-profiler.cc0000755000000000000000000005367312440704174014311 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2005, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Sanjay Ghemawat // // TODO: Log large allocations #include #include #include #include #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_INTTYPES_H #include #endif #ifdef HAVE_FCNTL_H #include // for open() #endif #ifdef HAVE_MMAP #include #endif #include #include #include #include #include #include #include #include "base/logging.h" #include "base/basictypes.h" // for PRId64, among other things #include "base/googleinit.h" #include "base/commandlineflags.h" #include "malloc_hook-inl.h" #include "tcmalloc_guard.h" #include #include #include "base/spinlock.h" #include "base/low_level_alloc.h" #include "base/sysinfo.h" // for GetUniquePathFromEnv() #include "heap-profile-table.h" #include "memory_region_map.h" #ifndef PATH_MAX #ifdef MAXPATHLEN #define PATH_MAX MAXPATHLEN #else #define PATH_MAX 4096 // seems conservative for max filename len! #endif #endif using STL_NAMESPACE::string; using STL_NAMESPACE::sort; //---------------------------------------------------------------------- // Flags that control heap-profiling // // The thread-safety of the profiler depends on these being immutable // after main starts, so don't change them. //---------------------------------------------------------------------- DEFINE_int64(heap_profile_allocation_interval, EnvToInt64("HEAP_PROFILE_ALLOCATION_INTERVAL", 1 << 30 /*1GB*/), "If non-zero, dump heap profiling information once every " "specified number of bytes allocated by the program since " "the last dump."); DEFINE_int64(heap_profile_deallocation_interval, EnvToInt64("HEAP_PROFILE_DEALLOCATION_INTERVAL", 0), "If non-zero, dump heap profiling information once every " "specified number of bytes deallocated by the program " "since the last dump."); // We could also add flags that report whenever inuse_bytes changes by // X or -X, but there hasn't been a need for that yet, so we haven't. DEFINE_int64(heap_profile_inuse_interval, EnvToInt64("HEAP_PROFILE_INUSE_INTERVAL", 100 << 20 /*100MB*/), "If non-zero, dump heap profiling information whenever " "the high-water memory usage mark increases by the specified " "number of bytes."); DEFINE_int64(heap_profile_time_interval, EnvToInt64("HEAP_PROFILE_TIME_INTERVAL", 0), "If non-zero, dump heap profiling information once every " "specified number of seconds since the last dump."); DEFINE_bool(mmap_log, EnvToBool("HEAP_PROFILE_MMAP_LOG", false), "Should mmap/munmap calls be logged?"); DEFINE_bool(mmap_profile, EnvToBool("HEAP_PROFILE_MMAP", false), "If heap-profiling is on, also profile mmap, mremap, and sbrk)"); DEFINE_bool(only_mmap_profile, EnvToBool("HEAP_PROFILE_ONLY_MMAP", false), "If heap-profiling is on, only profile mmap, mremap, and sbrk; " "do not profile malloc/new/etc"); //---------------------------------------------------------------------- // Locking //---------------------------------------------------------------------- // A pthread_mutex has way too much lock contention to be used here. // // I would like to use Mutex, but it can call malloc(), // which can cause us to fall into an infinite recursion. // // So we use a simple spinlock. static SpinLock heap_lock(SpinLock::LINKER_INITIALIZED); //---------------------------------------------------------------------- // Simple allocator for heap profiler's internal memory //---------------------------------------------------------------------- static LowLevelAlloc::Arena *heap_profiler_memory; static void* ProfilerMalloc(size_t bytes) { return LowLevelAlloc::AllocWithArena(bytes, heap_profiler_memory); } static void ProfilerFree(void* p) { LowLevelAlloc::Free(p); } // We use buffers of this size in DoGetHeapProfile. static const int kProfileBufferSize = 1 << 20; // This is a last-ditch buffer we use in DumpProfileLocked in case we // can't allocate more memory from ProfilerMalloc. We expect this // will be used by HeapProfileEndWriter when the application has to // exit due to out-of-memory. This buffer is allocated in // HeapProfilerStart. Access to this must be protected by heap_lock. static char* global_profiler_buffer = NULL; //---------------------------------------------------------------------- // Profiling control/state data //---------------------------------------------------------------------- // Access to all of these is protected by heap_lock. static bool is_on = false; // If are on as a subsytem. static bool dumping = false; // Dumping status to prevent recursion static char* filename_prefix = NULL; // Prefix used for profile file names // (NULL if no need for dumping yet) static int dump_count = 0; // How many dumps so far static int64 last_dump_alloc = 0; // alloc_size when did we last dump static int64 last_dump_free = 0; // free_size when did we last dump static int64 high_water_mark = 0; // In-use-bytes at last high-water dump static int64 last_dump_time = 0; // The time of the last dump static HeapProfileTable* heap_profile = NULL; // the heap profile table //---------------------------------------------------------------------- // Profile generation //---------------------------------------------------------------------- // Input must be a buffer of size at least 1MB. static char* DoGetHeapProfileLocked(char* buf, int buflen) { // We used to be smarter about estimating the required memory and // then capping it to 1MB and generating the profile into that. if (buf == NULL || buflen < 1) return NULL; RAW_DCHECK(heap_lock.IsHeld(), ""); int bytes_written = 0; if (is_on) { HeapProfileTable::Stats const stats = heap_profile->total(); (void)stats; // avoid an unused-variable warning in non-debug mode. bytes_written = heap_profile->FillOrderedProfile(buf, buflen - 1); // FillOrderedProfile should not reduce the set of active mmap-ed regions, // hence MemoryRegionMap will let us remove everything we've added above: RAW_DCHECK(stats.Equivalent(heap_profile->total()), ""); // if this fails, we somehow removed by FillOrderedProfile // more than we have added. } buf[bytes_written] = '\0'; RAW_DCHECK(bytes_written == strlen(buf), ""); return buf; } extern "C" char* GetHeapProfile() { // Use normal malloc: we return the profile to the user to free it: char* buffer = reinterpret_cast(malloc(kProfileBufferSize)); SpinLockHolder l(&heap_lock); return DoGetHeapProfileLocked(buffer, kProfileBufferSize); } // defined below static void NewHook(const void* ptr, size_t size); static void DeleteHook(const void* ptr); // Helper for HeapProfilerDump. static void DumpProfileLocked(const char* reason) { RAW_DCHECK(heap_lock.IsHeld(), ""); RAW_DCHECK(is_on, ""); RAW_DCHECK(!dumping, ""); if (filename_prefix == NULL) return; // we do not yet need dumping dumping = true; // Make file name char file_name[1000]; dump_count++; snprintf(file_name, sizeof(file_name), "%s.%04d%s", filename_prefix, dump_count, HeapProfileTable::kFileExt); // Dump the profile RAW_VLOG(0, "Dumping heap profile to %s (%s)", file_name, reason); // We must use file routines that don't access memory, since we hold // a memory lock now. RawFD fd = RawOpenForWriting(file_name); if (fd == kIllegalRawFD) { RAW_LOG(ERROR, "Failed dumping heap profile to %s", file_name); dumping = false; return; } // This case may be impossible, but it's best to be safe. // It's safe to use the global buffer: we're protected by heap_lock. if (global_profiler_buffer == NULL) { global_profiler_buffer = reinterpret_cast(ProfilerMalloc(kProfileBufferSize)); } char* profile = DoGetHeapProfileLocked(global_profiler_buffer, kProfileBufferSize); RawWrite(fd, profile, strlen(profile)); RawClose(fd); dumping = false; } //---------------------------------------------------------------------- // Profile collection //---------------------------------------------------------------------- // Dump a profile after either an allocation or deallocation, if // the memory use has changed enough since the last dump. static void MaybeDumpProfileLocked() { if (!dumping) { const HeapProfileTable::Stats& total = heap_profile->total(); const int64 inuse_bytes = total.alloc_size - total.free_size; bool need_to_dump = false; char buf[128]; int64 current_time = time(NULL); if (FLAGS_heap_profile_allocation_interval > 0 && total.alloc_size >= last_dump_alloc + FLAGS_heap_profile_allocation_interval) { snprintf(buf, sizeof(buf), ("%" PRId64 " MB allocated cumulatively, " "%" PRId64 " MB currently in use"), total.alloc_size >> 20, inuse_bytes >> 20); need_to_dump = true; } else if (FLAGS_heap_profile_deallocation_interval > 0 && total.free_size >= last_dump_free + FLAGS_heap_profile_deallocation_interval) { snprintf(buf, sizeof(buf), ("%" PRId64 " MB freed cumulatively, " "%" PRId64 " MB currently in use"), total.free_size >> 20, inuse_bytes >> 20); need_to_dump = true; } else if (FLAGS_heap_profile_inuse_interval > 0 && inuse_bytes > high_water_mark + FLAGS_heap_profile_inuse_interval) { snprintf(buf, sizeof(buf), "%" PRId64 " MB currently in use", inuse_bytes >> 20); need_to_dump = true; } else if (FLAGS_heap_profile_time_interval > 0 && current_time - last_dump_time >= FLAGS_heap_profile_time_interval) { snprintf(buf, sizeof(buf), "%" PRId64 " sec since the last dump", current_time - last_dump_time); need_to_dump = true; last_dump_time = current_time; } if (need_to_dump) { DumpProfileLocked(buf); last_dump_alloc = total.alloc_size; last_dump_free = total.free_size; if (inuse_bytes > high_water_mark) high_water_mark = inuse_bytes; } } } // Record an allocation in the profile. static void RecordAlloc(const void* ptr, size_t bytes, int skip_count) { // Take the stack trace outside the critical section. void* stack[HeapProfileTable::kMaxStackDepth]; int depth = HeapProfileTable::GetCallerStackTrace(skip_count + 1, stack); SpinLockHolder l(&heap_lock); if (is_on) { heap_profile->RecordAlloc(ptr, bytes, depth, stack); MaybeDumpProfileLocked(); } } // Record a deallocation in the profile. static void RecordFree(const void* ptr) { SpinLockHolder l(&heap_lock); if (is_on) { heap_profile->RecordFree(ptr); MaybeDumpProfileLocked(); } } //---------------------------------------------------------------------- // Allocation/deallocation hooks for MallocHook //---------------------------------------------------------------------- // static void NewHook(const void* ptr, size_t size) { if (ptr != NULL) RecordAlloc(ptr, size, 0); } // static void DeleteHook(const void* ptr) { if (ptr != NULL) RecordFree(ptr); } // TODO(jandrews): Re-enable stack tracing #ifdef TODO_REENABLE_STACK_TRACING static void RawInfoStackDumper(const char* message, void*) { RAW_LOG(INFO, "%.*s", static_cast(strlen(message) - 1), message); // -1 is to chop the \n which will be added by RAW_LOG } #endif static void MmapHook(const void* result, const void* start, size_t size, int prot, int flags, int fd, off_t offset) { if (FLAGS_mmap_log) { // log it // We use PRIxS not just '%p' to avoid deadlocks // in pretty-printing of NULL as "nil". // TODO(maxim): instead should use a safe snprintf reimplementation RAW_LOG(INFO, "mmap(start=0x%" PRIxPTR ", len=%" PRIuS ", prot=0x%x, flags=0x%x, " "fd=%d, offset=0x%x) = 0x%" PRIxPTR "", (uintptr_t) start, size, prot, flags, fd, (unsigned int) offset, (uintptr_t) result); #ifdef TODO_REENABLE_STACK_TRACING DumpStackTrace(1, RawInfoStackDumper, NULL); #endif } } static void MremapHook(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr) { if (FLAGS_mmap_log) { // log it // We use PRIxS not just '%p' to avoid deadlocks // in pretty-printing of NULL as "nil". // TODO(maxim): instead should use a safe snprintf reimplementation RAW_LOG(INFO, "mremap(old_addr=0x%" PRIxPTR ", old_size=%" PRIuS ", " "new_size=%" PRIuS ", flags=0x%x, new_addr=0x%" PRIxPTR ") = " "0x%" PRIxPTR "", (uintptr_t) old_addr, old_size, new_size, flags, (uintptr_t) new_addr, (uintptr_t) result); #ifdef TODO_REENABLE_STACK_TRACING DumpStackTrace(1, RawInfoStackDumper, NULL); #endif } } static void MunmapHook(const void* ptr, size_t size) { if (FLAGS_mmap_log) { // log it // We use PRIxS not just '%p' to avoid deadlocks // in pretty-printing of NULL as "nil". // TODO(maxim): instead should use a safe snprintf reimplementation RAW_LOG(INFO, "munmap(start=0x%" PRIxPTR ", len=%" PRIuS ")", (uintptr_t) ptr, size); #ifdef TODO_REENABLE_STACK_TRACING DumpStackTrace(1, RawInfoStackDumper, NULL); #endif } } static void SbrkHook(const void* result, ptrdiff_t increment) { if (FLAGS_mmap_log) { // log it RAW_LOG(INFO, "sbrk(inc=%" PRIdS ") = 0x%" PRIxPTR "", increment, (uintptr_t) result); #ifdef TODO_REENABLE_STACK_TRACING DumpStackTrace(1, RawInfoStackDumper, NULL); #endif } } //---------------------------------------------------------------------- // Starting/stopping/dumping //---------------------------------------------------------------------- extern "C" void HeapProfilerStart(const char* prefix) { SpinLockHolder l(&heap_lock); if (is_on) return; is_on = true; RAW_VLOG(0, "Starting tracking the heap"); // This should be done before the hooks are set up, since it should // call new, and we want that to be accounted for correctly. MallocExtension::Initialize(); if (FLAGS_only_mmap_profile) { FLAGS_mmap_profile = true; } if (FLAGS_mmap_profile) { // Ask MemoryRegionMap to record all mmap, mremap, and sbrk // call stack traces of at least size kMaxStackDepth: MemoryRegionMap::Init(HeapProfileTable::kMaxStackDepth, /* use_buckets */ true); } if (FLAGS_mmap_log) { // Install our hooks to do the logging: RAW_CHECK(MallocHook::AddMmapHook(&MmapHook), ""); RAW_CHECK(MallocHook::AddMremapHook(&MremapHook), ""); RAW_CHECK(MallocHook::AddMunmapHook(&MunmapHook), ""); RAW_CHECK(MallocHook::AddSbrkHook(&SbrkHook), ""); } heap_profiler_memory = LowLevelAlloc::NewArena(0, LowLevelAlloc::DefaultArena()); // Reserve space now for the heap profiler, so we can still write a // heap profile even if the application runs out of memory. global_profiler_buffer = reinterpret_cast(ProfilerMalloc(kProfileBufferSize)); heap_profile = new(ProfilerMalloc(sizeof(HeapProfileTable))) HeapProfileTable(ProfilerMalloc, ProfilerFree, FLAGS_mmap_profile); last_dump_alloc = 0; last_dump_free = 0; high_water_mark = 0; last_dump_time = 0; // We do not reset dump_count so if the user does a sequence of // HeapProfilerStart/HeapProfileStop, we will get a continuous // sequence of profiles. if (FLAGS_only_mmap_profile == false) { // Now set the hooks that capture new/delete and malloc/free. RAW_CHECK(MallocHook::AddNewHook(&NewHook), ""); RAW_CHECK(MallocHook::AddDeleteHook(&DeleteHook), ""); } // Copy filename prefix RAW_DCHECK(filename_prefix == NULL, ""); const int prefix_length = strlen(prefix); filename_prefix = reinterpret_cast(ProfilerMalloc(prefix_length + 1)); memcpy(filename_prefix, prefix, prefix_length); filename_prefix[prefix_length] = '\0'; } extern "C" int IsHeapProfilerRunning() { SpinLockHolder l(&heap_lock); return is_on ? 1 : 0; // return an int, because C code doesn't have bool } extern "C" void HeapProfilerStop() { SpinLockHolder l(&heap_lock); if (!is_on) return; if (FLAGS_only_mmap_profile == false) { // Unset our new/delete hooks, checking they were set: RAW_CHECK(MallocHook::RemoveNewHook(&NewHook), ""); RAW_CHECK(MallocHook::RemoveDeleteHook(&DeleteHook), ""); } if (FLAGS_mmap_log) { // Restore mmap/sbrk hooks, checking that our hooks were set: RAW_CHECK(MallocHook::RemoveMmapHook(&MmapHook), ""); RAW_CHECK(MallocHook::RemoveMremapHook(&MremapHook), ""); RAW_CHECK(MallocHook::RemoveSbrkHook(&SbrkHook), ""); RAW_CHECK(MallocHook::RemoveMunmapHook(&MunmapHook), ""); } // free profile heap_profile->~HeapProfileTable(); ProfilerFree(heap_profile); heap_profile = NULL; // free output-buffer memory ProfilerFree(global_profiler_buffer); // free prefix ProfilerFree(filename_prefix); filename_prefix = NULL; if (!LowLevelAlloc::DeleteArena(heap_profiler_memory)) { RAW_LOG(FATAL, "Memory leak in HeapProfiler:"); } if (FLAGS_mmap_profile) { MemoryRegionMap::Shutdown(); } is_on = false; } extern "C" void HeapProfilerDump(const char *reason) { SpinLockHolder l(&heap_lock); if (is_on && !dumping) { DumpProfileLocked(reason); } } // Signal handler that is registered when a user selectable signal // number is defined in the environment variable HEAPPROFILESIGNAL. static void HeapProfilerDumpSignal(int signal_number) { (void)signal_number; if (!heap_lock.TryLock()) { return; } if (is_on && !dumping) { DumpProfileLocked("signal"); } heap_lock.Unlock(); } //---------------------------------------------------------------------- // Initialization/finalization code //---------------------------------------------------------------------- // Initialization code static void HeapProfilerInit() { // Everything after this point is for setting up the profiler based on envvar char fname[PATH_MAX]; if (!GetUniquePathFromEnv("HEAPPROFILE", fname)) { return; } // We do a uid check so we don't write out files in a setuid executable. #ifdef HAVE_GETEUID if (getuid() != geteuid()) { RAW_LOG(WARNING, ("HeapProfiler: ignoring HEAPPROFILE because " "program seems to be setuid\n")); return; } #endif char *signal_number_str = getenv("HEAPPROFILESIGNAL"); if (signal_number_str != NULL) { long int signal_number = strtol(signal_number_str, NULL, 10); intptr_t old_signal_handler = reinterpret_cast(signal(signal_number, HeapProfilerDumpSignal)); if (old_signal_handler == reinterpret_cast(SIG_ERR)) { RAW_LOG(FATAL, "Failed to set signal. Perhaps signal number %s is invalid\n", signal_number_str); } else if (old_signal_handler == 0) { RAW_LOG(INFO,"Using signal %d as heap profiling switch", signal_number); } else { RAW_LOG(FATAL, "Signal %d already in use\n", signal_number); } } HeapProfileTable::CleanupOldProfiles(fname); HeapProfilerStart(fname); } // class used for finalization -- dumps the heap-profile at program exit struct HeapProfileEndWriter { ~HeapProfileEndWriter() { char buf[128]; if (heap_profile) { const HeapProfileTable::Stats& total = heap_profile->total(); const int64 inuse_bytes = total.alloc_size - total.free_size; if ((inuse_bytes >> 20) > 0) { snprintf(buf, sizeof(buf), ("Exiting, %" PRId64 " MB in use"), inuse_bytes >> 20); } else if ((inuse_bytes >> 10) > 0) { snprintf(buf, sizeof(buf), ("Exiting, %" PRId64 " kB in use"), inuse_bytes >> 10); } else { snprintf(buf, sizeof(buf), ("Exiting, %" PRId64 " bytes in use"), inuse_bytes); } } else { snprintf(buf, sizeof(buf), ("Exiting")); } HeapProfilerDump(buf); } }; // We want to make sure tcmalloc is up and running before starting the profiler static const TCMallocGuard tcmalloc_initializer; REGISTER_MODULE_INITIALIZER(heapprofiler, HeapProfilerInit()); static HeapProfileEndWriter heap_profile_end_writer; gperftools-2.4/src/raw_printer.cc0000644000000000000000000000474712440704174014103 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2008, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: sanjay@google.com (Sanjay Ghemawat) #include #include #include #include "raw_printer.h" #include "base/logging.h" namespace base { RawPrinter::RawPrinter(char* buf, int length) : base_(buf), ptr_(buf), limit_(buf + length - 1) { RAW_DCHECK(length > 0, ""); *ptr_ = '\0'; *limit_ = '\0'; } void RawPrinter::Printf(const char* format, ...) { if (limit_ > ptr_) { va_list ap; va_start(ap, format); int avail = limit_ - ptr_; // We pass avail+1 to vsnprintf() since that routine needs room // to store the trailing \0. const int r = perftools_vsnprintf(ptr_, avail+1, format, ap); va_end(ap); if (r < 0) { // Perhaps an old glibc that returns -1 on truncation? ptr_ = limit_; } else if (r > avail) { // Truncation ptr_ = limit_; } else { ptr_ += r; } } } } gperftools-2.4/src/memory_region_map.cc0000755000000000000000000010312212440704174015245 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Maxim Lifantsev */ // // Background and key design points of MemoryRegionMap. // // MemoryRegionMap is a low-level module with quite atypical requirements that // result in some degree of non-triviality of the implementation and design. // // MemoryRegionMap collects info about *all* memory regions created with // mmap, munmap, mremap, sbrk. // They key word above is 'all': all that are happening in a process // during its lifetime frequently starting even before global object // constructor execution. // // This is needed by the primary client of MemoryRegionMap: // HeapLeakChecker uses the regions and the associated stack traces // to figure out what part of the memory is the heap: // if MemoryRegionMap were to miss some (early) regions, leak checking would // stop working correctly. // // To accomplish the goal of functioning before/during global object // constructor execution MemoryRegionMap is done as a singleton service // that relies on own on-demand initialized static constructor-less data, // and only relies on other low-level modules that can also function properly // even before global object constructors run. // // Accomplishing the goal of collecting data about all mmap, munmap, mremap, // sbrk occurrences is a more involved: conceptually to do this one needs to // record some bits of data in particular about any mmap or sbrk call, // but to do that one needs to allocate memory for that data at some point, // but all memory allocations in the end themselves come from an mmap // or sbrk call (that's how the address space of the process grows). // // Also note that we need to do all the above recording from // within an mmap/sbrk hook which is sometimes/frequently is made by a memory // allocator, including the allocator MemoryRegionMap itself must rely on. // In the case of heap-checker usage this includes even the very first // mmap/sbrk call happening in the program: heap-checker gets activated due to // a link-time installed mmap/sbrk hook and it initializes MemoryRegionMap // and asks it to record info about this very first call right from that // very first hook invocation. // // MemoryRegionMap is doing its memory allocations via LowLevelAlloc: // unlike more complex standard memory allocator, LowLevelAlloc cooperates with // MemoryRegionMap by not holding any of its own locks while it calls mmap // to get memory, thus we are able to call LowLevelAlloc from // our mmap/sbrk hooks without causing a deadlock in it. // For the same reason of deadlock prevention the locking in MemoryRegionMap // itself is write-recursive which is an exception to Google's mutex usage. // // We still need to break the infinite cycle of mmap calling our hook, // which asks LowLevelAlloc for memory to record this mmap, // which (sometimes) causes mmap, which calls our hook, and so on. // We do this as follows: on a recursive call of MemoryRegionMap's // mmap/sbrk/mremap hook we record the data about the allocation in a // static fixed-sized stack (saved_regions and saved_buckets), when the // recursion unwinds but before returning from the outer hook call we unwind // this stack and move the data from saved_regions and saved_buckets to its // permanent place in the RegionSet and "bucket_table" respectively, // which can cause more allocations and mmap-s and recursion and unwinding, // but the whole process ends eventually due to the fact that for the small // allocations we are doing LowLevelAlloc reuses one mmap call and parcels out // the memory it created to satisfy several of our allocation requests. // // ========================================================================= // #include #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_INTTYPES_H #include #endif #ifdef HAVE_MMAP #include #elif !defined(MAP_FAILED) #define MAP_FAILED -1 // the only thing we need from mman.h #endif #ifdef HAVE_PTHREAD #include // for pthread_t, pthread_self() #endif #include #include #include #include "memory_region_map.h" #include "base/logging.h" #include "base/low_level_alloc.h" #include "malloc_hook-inl.h" #include #include // MREMAP_FIXED is a linux extension. How it's used in this file, // setting it to 0 is equivalent to saying, "This feature isn't // supported", which is right. #ifndef MREMAP_FIXED # define MREMAP_FIXED 0 #endif using std::max; // ========================================================================= // int MemoryRegionMap::client_count_ = 0; int MemoryRegionMap::max_stack_depth_ = 0; MemoryRegionMap::RegionSet* MemoryRegionMap::regions_ = NULL; LowLevelAlloc::Arena* MemoryRegionMap::arena_ = NULL; SpinLock MemoryRegionMap::lock_(SpinLock::LINKER_INITIALIZED); SpinLock MemoryRegionMap::owner_lock_( // ACQUIRED_AFTER(lock_) SpinLock::LINKER_INITIALIZED); int MemoryRegionMap::recursion_count_ = 0; // GUARDED_BY(owner_lock_) pthread_t MemoryRegionMap::lock_owner_tid_; // GUARDED_BY(owner_lock_) int64 MemoryRegionMap::map_size_ = 0; int64 MemoryRegionMap::unmap_size_ = 0; HeapProfileBucket** MemoryRegionMap::bucket_table_ = NULL; // GUARDED_BY(lock_) int MemoryRegionMap::num_buckets_ = 0; // GUARDED_BY(lock_) int MemoryRegionMap::saved_buckets_count_ = 0; // GUARDED_BY(lock_) HeapProfileBucket MemoryRegionMap::saved_buckets_[20]; // GUARDED_BY(lock_) // GUARDED_BY(lock_) const void* MemoryRegionMap::saved_buckets_keys_[20][kMaxStackDepth]; // ========================================================================= // // Simple hook into execution of global object constructors, // so that we do not call pthread_self() when it does not yet work. static bool libpthread_initialized = false; static bool initializer = (libpthread_initialized = true, true); static inline bool current_thread_is(pthread_t should_be) { // Before main() runs, there's only one thread, so we're always that thread if (!libpthread_initialized) return true; // this starts working only sometime well into global constructor execution: return pthread_equal(pthread_self(), should_be); } // ========================================================================= // // Constructor-less place-holder to store a RegionSet in. union MemoryRegionMap::RegionSetRep { char rep[sizeof(RegionSet)]; void* align_it; // do not need a better alignment for 'rep' than this RegionSet* region_set() { return reinterpret_cast(rep); } }; // The bytes where MemoryRegionMap::regions_ will point to. // We use RegionSetRep with noop c-tor so that global construction // does not interfere. static MemoryRegionMap::RegionSetRep regions_rep; // ========================================================================= // // Has InsertRegionLocked been called recursively // (or rather should we *not* use regions_ to record a hooked mmap). static bool recursive_insert = false; void MemoryRegionMap::Init(int max_stack_depth, bool use_buckets) { RAW_VLOG(10, "MemoryRegionMap Init"); RAW_CHECK(max_stack_depth >= 0, ""); // Make sure we don't overflow the memory in region stacks: RAW_CHECK(max_stack_depth <= kMaxStackDepth, "need to increase kMaxStackDepth?"); Lock(); client_count_ += 1; max_stack_depth_ = max(max_stack_depth_, max_stack_depth); if (client_count_ > 1) { // not first client: already did initialization-proper Unlock(); RAW_VLOG(10, "MemoryRegionMap Init increment done"); return; } // Set our hooks and make sure they were installed: RAW_CHECK(MallocHook::AddMmapHook(&MmapHook), ""); RAW_CHECK(MallocHook::AddMremapHook(&MremapHook), ""); RAW_CHECK(MallocHook::AddSbrkHook(&SbrkHook), ""); RAW_CHECK(MallocHook::AddMunmapHook(&MunmapHook), ""); // We need to set recursive_insert since the NewArena call itself // will already do some allocations with mmap which our hooks will catch // recursive_insert allows us to buffer info about these mmap calls. // Note that Init() can be (and is) sometimes called // already from within an mmap/sbrk hook. recursive_insert = true; arena_ = LowLevelAlloc::NewArena(0, LowLevelAlloc::DefaultArena()); recursive_insert = false; HandleSavedRegionsLocked(&InsertRegionLocked); // flush the buffered ones // Can't instead use HandleSavedRegionsLocked(&DoInsertRegionLocked) before // recursive_insert = false; as InsertRegionLocked will also construct // regions_ on demand for us. if (use_buckets) { const int table_bytes = kHashTableSize * sizeof(*bucket_table_); recursive_insert = true; bucket_table_ = static_cast( MyAllocator::Allocate(table_bytes)); recursive_insert = false; memset(bucket_table_, 0, table_bytes); num_buckets_ = 0; } Unlock(); RAW_VLOG(10, "MemoryRegionMap Init done"); } bool MemoryRegionMap::Shutdown() { RAW_VLOG(10, "MemoryRegionMap Shutdown"); Lock(); RAW_CHECK(client_count_ > 0, ""); client_count_ -= 1; if (client_count_ != 0) { // not last client; need not really shutdown Unlock(); RAW_VLOG(10, "MemoryRegionMap Shutdown decrement done"); return true; } if (bucket_table_ != NULL) { for (int i = 0; i < kHashTableSize; i++) { for (HeapProfileBucket* curr = bucket_table_[i]; curr != 0; /**/) { HeapProfileBucket* bucket = curr; curr = curr->next; MyAllocator::Free(bucket->stack, 0); MyAllocator::Free(bucket, 0); } } MyAllocator::Free(bucket_table_, 0); num_buckets_ = 0; bucket_table_ = NULL; } RAW_CHECK(MallocHook::RemoveMmapHook(&MmapHook), ""); RAW_CHECK(MallocHook::RemoveMremapHook(&MremapHook), ""); RAW_CHECK(MallocHook::RemoveSbrkHook(&SbrkHook), ""); RAW_CHECK(MallocHook::RemoveMunmapHook(&MunmapHook), ""); if (regions_) regions_->~RegionSet(); regions_ = NULL; bool deleted_arena = LowLevelAlloc::DeleteArena(arena_); if (deleted_arena) { arena_ = 0; } else { RAW_LOG(WARNING, "Can't delete LowLevelAlloc arena: it's being used"); } Unlock(); RAW_VLOG(10, "MemoryRegionMap Shutdown done"); return deleted_arena; } bool MemoryRegionMap::IsRecordingLocked() { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); return client_count_ > 0; } // Invariants (once libpthread_initialized is true): // * While lock_ is not held, recursion_count_ is 0 (and // lock_owner_tid_ is the previous owner, but we don't rely on // that). // * recursion_count_ and lock_owner_tid_ are only written while // both lock_ and owner_lock_ are held. They may be read under // just owner_lock_. // * At entry and exit of Lock() and Unlock(), the current thread // owns lock_ iff pthread_equal(lock_owner_tid_, pthread_self()) // && recursion_count_ > 0. void MemoryRegionMap::Lock() { { SpinLockHolder l(&owner_lock_); if (recursion_count_ > 0 && current_thread_is(lock_owner_tid_)) { RAW_CHECK(lock_.IsHeld(), "Invariants violated"); recursion_count_++; RAW_CHECK(recursion_count_ <= 5, "recursive lock nesting unexpectedly deep"); return; } } lock_.Lock(); { SpinLockHolder l(&owner_lock_); RAW_CHECK(recursion_count_ == 0, "Last Unlock didn't reset recursion_count_"); if (libpthread_initialized) lock_owner_tid_ = pthread_self(); recursion_count_ = 1; } } void MemoryRegionMap::Unlock() { SpinLockHolder l(&owner_lock_); RAW_CHECK(recursion_count_ > 0, "unlock when not held"); RAW_CHECK(lock_.IsHeld(), "unlock when not held, and recursion_count_ is wrong"); RAW_CHECK(current_thread_is(lock_owner_tid_), "unlock by non-holder"); recursion_count_--; if (recursion_count_ == 0) { lock_.Unlock(); } } bool MemoryRegionMap::LockIsHeld() { SpinLockHolder l(&owner_lock_); return lock_.IsHeld() && current_thread_is(lock_owner_tid_); } const MemoryRegionMap::Region* MemoryRegionMap::DoFindRegionLocked(uintptr_t addr) { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); if (regions_ != NULL) { Region sample; sample.SetRegionSetKey(addr); RegionSet::iterator region = regions_->lower_bound(sample); if (region != regions_->end()) { RAW_CHECK(addr <= region->end_addr, ""); if (region->start_addr <= addr && addr < region->end_addr) { return &(*region); } } } return NULL; } bool MemoryRegionMap::FindRegion(uintptr_t addr, Region* result) { Lock(); const Region* region = DoFindRegionLocked(addr); if (region != NULL) *result = *region; // create it as an independent copy Unlock(); return region != NULL; } bool MemoryRegionMap::FindAndMarkStackRegion(uintptr_t stack_top, Region* result) { Lock(); const Region* region = DoFindRegionLocked(stack_top); if (region != NULL) { RAW_VLOG(10, "Stack at %p is inside region %p..%p", reinterpret_cast(stack_top), reinterpret_cast(region->start_addr), reinterpret_cast(region->end_addr)); const_cast(region)->set_is_stack(); // now we know // cast is safe (set_is_stack does not change the set ordering key) *result = *region; // create *result as an independent copy } Unlock(); return region != NULL; } HeapProfileBucket* MemoryRegionMap::GetBucket(int depth, const void* const key[]) { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); // Make hash-value uintptr_t hash = 0; for (int i = 0; i < depth; i++) { hash += reinterpret_cast(key[i]); hash += hash << 10; hash ^= hash >> 6; } hash += hash << 3; hash ^= hash >> 11; // Lookup stack trace in table unsigned int hash_index = (static_cast(hash)) % kHashTableSize; for (HeapProfileBucket* bucket = bucket_table_[hash_index]; bucket != 0; bucket = bucket->next) { if ((bucket->hash == hash) && (bucket->depth == depth) && std::equal(key, key + depth, bucket->stack)) { return bucket; } } // Create new bucket const size_t key_size = sizeof(key[0]) * depth; HeapProfileBucket* bucket; if (recursive_insert) { // recursion: save in saved_buckets_ const void** key_copy = saved_buckets_keys_[saved_buckets_count_]; std::copy(key, key + depth, key_copy); bucket = &saved_buckets_[saved_buckets_count_]; memset(bucket, 0, sizeof(*bucket)); ++saved_buckets_count_; bucket->stack = key_copy; bucket->next = NULL; } else { recursive_insert = true; const void** key_copy = static_cast( MyAllocator::Allocate(key_size)); recursive_insert = false; std::copy(key, key + depth, key_copy); recursive_insert = true; bucket = static_cast( MyAllocator::Allocate(sizeof(HeapProfileBucket))); recursive_insert = false; memset(bucket, 0, sizeof(*bucket)); bucket->stack = key_copy; bucket->next = bucket_table_[hash_index]; } bucket->hash = hash; bucket->depth = depth; bucket_table_[hash_index] = bucket; ++num_buckets_; return bucket; } MemoryRegionMap::RegionIterator MemoryRegionMap::BeginRegionLocked() { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); RAW_CHECK(regions_ != NULL, ""); return regions_->begin(); } MemoryRegionMap::RegionIterator MemoryRegionMap::EndRegionLocked() { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); RAW_CHECK(regions_ != NULL, ""); return regions_->end(); } inline void MemoryRegionMap::DoInsertRegionLocked(const Region& region) { RAW_VLOG(12, "Inserting region %p..%p from %p", reinterpret_cast(region.start_addr), reinterpret_cast(region.end_addr), reinterpret_cast(region.caller())); RegionSet::const_iterator i = regions_->lower_bound(region); if (i != regions_->end() && i->start_addr <= region.start_addr) { RAW_DCHECK(region.end_addr <= i->end_addr, ""); // lower_bound ensures this return; // 'region' is a subset of an already recorded region; do nothing // We can be stricter and allow this only when *i has been created via // an mmap with MAP_NORESERVE flag set. } if (DEBUG_MODE) { RAW_CHECK(i == regions_->end() || !region.Overlaps(*i), "Wow, overlapping memory regions"); Region sample; sample.SetRegionSetKey(region.start_addr); i = regions_->lower_bound(sample); RAW_CHECK(i == regions_->end() || !region.Overlaps(*i), "Wow, overlapping memory regions"); } region.AssertIsConsistent(); // just making sure // This inserts and allocates permanent storage for region // and its call stack data: it's safe to do it now: regions_->insert(region); RAW_VLOG(12, "Inserted region %p..%p :", reinterpret_cast(region.start_addr), reinterpret_cast(region.end_addr)); if (VLOG_IS_ON(12)) LogAllLocked(); } // These variables are local to MemoryRegionMap::InsertRegionLocked() // and MemoryRegionMap::HandleSavedRegionsLocked() // and are file-level to ensure that they are initialized at load time. // Number of unprocessed region inserts. static int saved_regions_count = 0; // Unprocessed inserts (must be big enough to hold all allocations that can // be caused by a InsertRegionLocked call). // Region has no constructor, so that c-tor execution does not interfere // with the any-time use of the static memory behind saved_regions. static MemoryRegionMap::Region saved_regions[20]; inline void MemoryRegionMap::HandleSavedRegionsLocked( void (*insert_func)(const Region& region)) { while (saved_regions_count > 0) { // Making a local-var copy of the region argument to insert_func // including its stack (w/o doing any memory allocations) is important: // in many cases the memory in saved_regions // will get written-to during the (*insert_func)(r) call below. Region r = saved_regions[--saved_regions_count]; (*insert_func)(r); } } void MemoryRegionMap::RestoreSavedBucketsLocked() { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); while (saved_buckets_count_ > 0) { HeapProfileBucket bucket = saved_buckets_[--saved_buckets_count_]; unsigned int hash_index = static_cast(bucket.hash) % kHashTableSize; bool is_found = false; for (HeapProfileBucket* curr = bucket_table_[hash_index]; curr != 0; curr = curr->next) { if ((curr->hash == bucket.hash) && (curr->depth == bucket.depth) && std::equal(bucket.stack, bucket.stack + bucket.depth, curr->stack)) { curr->allocs += bucket.allocs; curr->alloc_size += bucket.alloc_size; curr->frees += bucket.frees; curr->free_size += bucket.free_size; is_found = true; break; } } if (is_found) continue; const size_t key_size = sizeof(bucket.stack[0]) * bucket.depth; const void** key_copy = static_cast( MyAllocator::Allocate(key_size)); std::copy(bucket.stack, bucket.stack + bucket.depth, key_copy); HeapProfileBucket* new_bucket = static_cast( MyAllocator::Allocate(sizeof(HeapProfileBucket))); memset(new_bucket, 0, sizeof(*new_bucket)); new_bucket->hash = bucket.hash; new_bucket->depth = bucket.depth; new_bucket->stack = key_copy; new_bucket->next = bucket_table_[hash_index]; bucket_table_[hash_index] = new_bucket; ++num_buckets_; } } inline void MemoryRegionMap::InsertRegionLocked(const Region& region) { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); // We can be called recursively, because RegionSet constructor // and DoInsertRegionLocked() (called below) can call the allocator. // recursive_insert tells us if that's the case. When this happens, // region insertion information is recorded in saved_regions[], // and taken into account when the recursion unwinds. // Do the insert: if (recursive_insert) { // recursion: save in saved_regions RAW_VLOG(12, "Saving recursive insert of region %p..%p from %p", reinterpret_cast(region.start_addr), reinterpret_cast(region.end_addr), reinterpret_cast(region.caller())); RAW_CHECK(saved_regions_count < arraysize(saved_regions), ""); // Copy 'region' to saved_regions[saved_regions_count] // together with the contents of its call_stack, // then increment saved_regions_count. saved_regions[saved_regions_count++] = region; } else { // not a recusrive call if (regions_ == NULL) { // init regions_ RAW_VLOG(12, "Initializing region set"); regions_ = regions_rep.region_set(); recursive_insert = true; new(regions_) RegionSet(); HandleSavedRegionsLocked(&DoInsertRegionLocked); recursive_insert = false; } recursive_insert = true; // Do the actual insertion work to put new regions into regions_: DoInsertRegionLocked(region); HandleSavedRegionsLocked(&DoInsertRegionLocked); recursive_insert = false; } } // We strip out different number of stack frames in debug mode // because less inlining happens in that case #ifdef NDEBUG static const int kStripFrames = 1; #else static const int kStripFrames = 3; #endif void MemoryRegionMap::RecordRegionAddition(const void* start, size_t size) { // Record start/end info about this memory acquisition call in a new region: Region region; region.Create(start, size); // First get the call stack info into the local varible 'region': int depth = 0; // NOTE: libunwind also does mmap and very much likely while holding // it's own lock(s). So some threads may first take libunwind lock, // and then take region map lock (necessary to record mmap done from // inside libunwind). On the other hand other thread(s) may do // normal mmap. Which would call this method to record it. Which // would then proceed with installing that record to region map // while holding region map lock. That may cause mmap from our own // internal allocators, so attempt to unwind in this case may cause // reverse order of taking libuwind and region map locks. Which is // obvious deadlock. // // Thankfully, we can easily detect if we're holding region map lock // and avoid recording backtrace in this (rare and largely // irrelevant) case. By doing this we "declare" that thread needing // both locks must take region map lock last. In other words we do // not allow taking libuwind lock when we already have region map // lock. Note, this is generally impossible when somebody tries to // mix cpu profiling and heap checking/profiling, because cpu // profiler grabs backtraces at arbitrary places. But at least such // combination is rarer and less relevant. if (max_stack_depth_ > 0 && !LockIsHeld()) { depth = MallocHook::GetCallerStackTrace(const_cast(region.call_stack), max_stack_depth_, kStripFrames + 1); } region.set_call_stack_depth(depth); // record stack info fully RAW_VLOG(10, "New global region %p..%p from %p", reinterpret_cast(region.start_addr), reinterpret_cast(region.end_addr), reinterpret_cast(region.caller())); // Note: none of the above allocates memory. Lock(); // recursively lock map_size_ += size; InsertRegionLocked(region); // This will (eventually) allocate storage for and copy over the stack data // from region.call_stack_data_ that is pointed by region.call_stack(). if (bucket_table_ != NULL) { HeapProfileBucket* b = GetBucket(depth, region.call_stack); ++b->allocs; b->alloc_size += size; if (!recursive_insert) { recursive_insert = true; RestoreSavedBucketsLocked(); recursive_insert = false; } } Unlock(); } void MemoryRegionMap::RecordRegionRemoval(const void* start, size_t size) { Lock(); if (recursive_insert) { // First remove the removed region from saved_regions, if it's // there, to prevent overrunning saved_regions in recursive // map/unmap call sequences, and also from later inserting regions // which have already been unmapped. uintptr_t start_addr = reinterpret_cast(start); uintptr_t end_addr = start_addr + size; int put_pos = 0; int old_count = saved_regions_count; for (int i = 0; i < old_count; ++i, ++put_pos) { Region& r = saved_regions[i]; if (r.start_addr == start_addr && r.end_addr == end_addr) { // An exact match, so it's safe to remove. RecordRegionRemovalInBucket(r.call_stack_depth, r.call_stack, size); --saved_regions_count; --put_pos; RAW_VLOG(10, ("Insta-Removing saved region %p..%p; " "now have %d saved regions"), reinterpret_cast(start_addr), reinterpret_cast(end_addr), saved_regions_count); } else { if (put_pos < i) { saved_regions[put_pos] = saved_regions[i]; } } } } if (regions_ == NULL) { // We must have just unset the hooks, // but this thread was already inside the hook. Unlock(); return; } if (!recursive_insert) { HandleSavedRegionsLocked(&InsertRegionLocked); } // first handle adding saved regions if any uintptr_t start_addr = reinterpret_cast(start); uintptr_t end_addr = start_addr + size; // subtract start_addr, end_addr from all the regions RAW_VLOG(10, "Removing global region %p..%p; have %" PRIuS " regions", reinterpret_cast(start_addr), reinterpret_cast(end_addr), regions_->size()); Region sample; sample.SetRegionSetKey(start_addr); // Only iterate over the regions that might overlap start_addr..end_addr: for (RegionSet::iterator region = regions_->lower_bound(sample); region != regions_->end() && region->start_addr < end_addr; /*noop*/) { RAW_VLOG(13, "Looking at region %p..%p", reinterpret_cast(region->start_addr), reinterpret_cast(region->end_addr)); if (start_addr <= region->start_addr && region->end_addr <= end_addr) { // full deletion RAW_VLOG(12, "Deleting region %p..%p", reinterpret_cast(region->start_addr), reinterpret_cast(region->end_addr)); RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack, region->end_addr - region->start_addr); RegionSet::iterator d = region; ++region; regions_->erase(d); continue; } else if (region->start_addr < start_addr && end_addr < region->end_addr) { // cutting-out split RAW_VLOG(12, "Splitting region %p..%p in two", reinterpret_cast(region->start_addr), reinterpret_cast(region->end_addr)); RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack, end_addr - start_addr); // Make another region for the start portion: // The new region has to be the start portion because we can't // just modify region->end_addr as it's the sorting key. Region r = *region; r.set_end_addr(start_addr); InsertRegionLocked(r); // cut *region from start: const_cast(*region).set_start_addr(end_addr); } else if (end_addr > region->start_addr && start_addr <= region->start_addr) { // cut from start RAW_VLOG(12, "Start-chopping region %p..%p", reinterpret_cast(region->start_addr), reinterpret_cast(region->end_addr)); RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack, end_addr - region->start_addr); const_cast(*region).set_start_addr(end_addr); } else if (start_addr > region->start_addr && start_addr < region->end_addr) { // cut from end RAW_VLOG(12, "End-chopping region %p..%p", reinterpret_cast(region->start_addr), reinterpret_cast(region->end_addr)); RecordRegionRemovalInBucket(region->call_stack_depth, region->call_stack, region->end_addr - start_addr); // Can't just modify region->end_addr (it's the sorting key): Region r = *region; r.set_end_addr(start_addr); RegionSet::iterator d = region; ++region; // It's safe to erase before inserting since r is independent of *d: // r contains an own copy of the call stack: regions_->erase(d); InsertRegionLocked(r); continue; } ++region; } RAW_VLOG(12, "Removed region %p..%p; have %" PRIuS " regions", reinterpret_cast(start_addr), reinterpret_cast(end_addr), regions_->size()); if (VLOG_IS_ON(12)) LogAllLocked(); unmap_size_ += size; Unlock(); } void MemoryRegionMap::RecordRegionRemovalInBucket(int depth, const void* const stack[], size_t size) { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); if (bucket_table_ == NULL) return; HeapProfileBucket* b = GetBucket(depth, stack); ++b->frees; b->free_size += size; } void MemoryRegionMap::MmapHook(const void* result, const void* start, size_t size, int prot, int flags, int fd, off_t offset) { // TODO(maxim): replace all 0x%" PRIxS " by %p when RAW_VLOG uses a safe // snprintf reimplementation that does not malloc to pretty-print NULL RAW_VLOG(10, "MMap = 0x%" PRIxPTR " of %" PRIuS " at %" PRIu64 " " "prot %d flags %d fd %d offs %" PRId64, reinterpret_cast(result), size, reinterpret_cast(start), prot, flags, fd, static_cast(offset)); if (result != reinterpret_cast(MAP_FAILED) && size != 0) { RecordRegionAddition(result, size); } } void MemoryRegionMap::MunmapHook(const void* ptr, size_t size) { RAW_VLOG(10, "MUnmap of %p %" PRIuS "", ptr, size); if (size != 0) { RecordRegionRemoval(ptr, size); } } void MemoryRegionMap::MremapHook(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr) { RAW_VLOG(10, "MRemap = 0x%" PRIxPTR " of 0x%" PRIxPTR " %" PRIuS " " "to %" PRIuS " flags %d new_addr=0x%" PRIxPTR, (uintptr_t)result, (uintptr_t)old_addr, old_size, new_size, flags, flags & MREMAP_FIXED ? (uintptr_t)new_addr : 0); if (result != reinterpret_cast(-1)) { RecordRegionRemoval(old_addr, old_size); RecordRegionAddition(result, new_size); } } void MemoryRegionMap::SbrkHook(const void* result, ptrdiff_t increment) { RAW_VLOG(10, "Sbrk = 0x%" PRIxPTR " of %" PRIdS "", (uintptr_t)result, increment); if (result != reinterpret_cast(-1)) { if (increment > 0) { void* new_end = sbrk(0); RecordRegionAddition(result, reinterpret_cast(new_end) - reinterpret_cast(result)); } else if (increment < 0) { void* new_end = sbrk(0); RecordRegionRemoval(new_end, reinterpret_cast(result) - reinterpret_cast(new_end)); } } } void MemoryRegionMap::LogAllLocked() { RAW_CHECK(LockIsHeld(), "should be held (by this thread)"); RAW_LOG(INFO, "List of regions:"); uintptr_t previous = 0; for (RegionSet::const_iterator r = regions_->begin(); r != regions_->end(); ++r) { RAW_LOG(INFO, "Memory region 0x%" PRIxPTR "..0x%" PRIxPTR " " "from 0x%" PRIxPTR " stack=%d", r->start_addr, r->end_addr, r->caller(), r->is_stack); RAW_CHECK(previous < r->end_addr, "wow, we messed up the set order"); // this must be caused by uncontrolled recursive operations on regions_ previous = r->end_addr; } RAW_LOG(INFO, "End of regions list"); } gperftools-2.4/src/config_for_unittests.h0000644000000000000000000000574612440704174015646 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // All Rights Reserved. // // Author: Craig Silverstein // // This file is needed for windows -- unittests are not part of the // perftools dll, but still want to include config.h just like the // dll does, so they can use internal tools and APIs for testing. // // The problem is that config.h declares PERFTOOLS_DLL_DECL to be // for exporting symbols, but the unittest needs to *import* symbols // (since it's not the dll). // // The solution is to have this file, which is just like config.h but // sets PERFTOOLS_DLL_DECL to do a dllimport instead of a dllexport. // // The reason we need this extra PERFTOOLS_DLL_DECL_FOR_UNITTESTS // variable is in case people want to set PERFTOOLS_DLL_DECL explicitly // to something other than __declspec(dllexport). In that case, they // may want to use something other than __declspec(dllimport) for the // unittest case. For that, we allow folks to define both // PERFTOOLS_DLL_DECL and PERFTOOLS_DLL_DECL_FOR_UNITTESTS explicitly. // // NOTE: This file is equivalent to config.h on non-windows systems, // which never defined PERFTOOLS_DLL_DECL_FOR_UNITTESTS and always // define PERFTOOLS_DLL_DECL to the empty string. #include "config.h" #undef PERFTOOLS_DLL_DECL #ifdef PERFTOOLS_DLL_DECL_FOR_UNITTESTS # define PERFTOOLS_DLL_DECL PERFTOOLS_DLL_DECL_FOR_UNITTESTS #else # define PERFTOOLS_DLL_DECL // if DLL_DECL_FOR_UNITTESTS isn't defined, use "" #endif gperftools-2.4/src/memory_region_map.h0000644000000000000000000004211612440704174015111 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- /* Copyright (c) 2006, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * --- * Author: Maxim Lifantsev */ #ifndef BASE_MEMORY_REGION_MAP_H_ #define BASE_MEMORY_REGION_MAP_H_ #include #ifdef HAVE_PTHREAD #include #endif #include #include #include "base/stl_allocator.h" #include "base/spinlock.h" #include "base/thread_annotations.h" #include "base/low_level_alloc.h" #include "heap-profile-stats.h" // TODO(maxim): add a unittest: // execute a bunch of mmaps and compare memory map what strace logs // execute a bunch of mmap/munmup and compare memory map with // own accounting of what those mmaps generated // Thread-safe class to collect and query the map of all memory regions // in a process that have been created with mmap, munmap, mremap, sbrk. // For each memory region, we keep track of (and provide to users) // the stack trace that allocated that memory region. // The recorded stack trace depth is bounded by // a user-supplied max_stack_depth parameter of Init(). // After initialization with Init() // (which can happened even before global object constructor execution) // we collect the map by installing and monitoring MallocHook-s // to mmap, munmap, mremap, sbrk. // At any time one can query this map via provided interface. // For more details on the design of MemoryRegionMap // see the comment at the top of our .cc file. class MemoryRegionMap { private: // Max call stack recording depth supported by Init(). Set it to be // high enough for all our clients. Note: we do not define storage // for this (doing that requires special handling in windows), so // don't take the address of it! static const int kMaxStackDepth = 32; // Size of the hash table of buckets. A structure of the bucket table is // described in heap-profile-stats.h. static const int kHashTableSize = 179999; public: // interface ================================================================ // Every client of MemoryRegionMap must call Init() before first use, // and Shutdown() after last use. This allows us to reference count // this (singleton) class properly. MemoryRegionMap assumes it's the // only client of MallocHooks, so a client can only register other // MallocHooks after calling Init() and must unregister them before // calling Shutdown(). // Initialize this module to record memory allocation stack traces. // Stack traces that have more than "max_stack_depth" frames // are automatically shrunk to "max_stack_depth" when they are recorded. // Init() can be called more than once w/o harm, largest max_stack_depth // will be the effective one. // When "use_buckets" is true, then counts of mmap and munmap sizes will be // recorded with each stack trace. If Init() is called more than once, then // counting will be effective after any call contained "use_buckets" of true. // It will install mmap, munmap, mremap, sbrk hooks // and initialize arena_ and our hook and locks, hence one can use // MemoryRegionMap::Lock()/Unlock() to manage the locks. // Uses Lock/Unlock inside. static void Init(int max_stack_depth, bool use_buckets); // Try to shutdown this module undoing what Init() did. // Returns true iff could do full shutdown (or it was not attempted). // Full shutdown is attempted when the number of Shutdown() calls equals // the number of Init() calls. static bool Shutdown(); // Return true if MemoryRegionMap is initialized and recording, i.e. when // then number of Init() calls are more than the number of Shutdown() calls. static bool IsRecordingLocked(); // Locks to protect our internal data structures. // These also protect use of arena_ if our Init() has been done. // The lock is recursive. static void Lock() EXCLUSIVE_LOCK_FUNCTION(lock_); static void Unlock() UNLOCK_FUNCTION(lock_); // Returns true when the lock is held by this thread (for use in RAW_CHECK-s). static bool LockIsHeld(); // Locker object that acquires the MemoryRegionMap::Lock // for the duration of its lifetime (a C++ scope). class LockHolder { public: LockHolder() { Lock(); } ~LockHolder() { Unlock(); } private: DISALLOW_COPY_AND_ASSIGN(LockHolder); }; // A memory region that we know about through malloc_hook-s. // This is essentially an interface through which MemoryRegionMap // exports the collected data to its clients. Thread-compatible. struct Region { uintptr_t start_addr; // region start address uintptr_t end_addr; // region end address int call_stack_depth; // number of caller stack frames that we saved const void* call_stack[kMaxStackDepth]; // caller address stack array // filled to call_stack_depth size bool is_stack; // does this region contain a thread's stack: // a user of MemoryRegionMap supplies this info // Convenience accessor for call_stack[0], // i.e. (the program counter of) the immediate caller // of this region's allocation function, // but it also returns NULL when call_stack_depth is 0, // i.e whe we weren't able to get the call stack. // This usually happens in recursive calls, when the stack-unwinder // calls mmap() which in turn calls the stack-unwinder. uintptr_t caller() const { return reinterpret_cast(call_stack_depth >= 1 ? call_stack[0] : NULL); } // Return true iff this region overlaps region x. bool Overlaps(const Region& x) const { return start_addr < x.end_addr && end_addr > x.start_addr; } private: // helpers for MemoryRegionMap friend class MemoryRegionMap; // The ways we create Region-s: void Create(const void* start, size_t size) { start_addr = reinterpret_cast(start); end_addr = start_addr + size; is_stack = false; // not a stack till marked such call_stack_depth = 0; AssertIsConsistent(); } void set_call_stack_depth(int depth) { RAW_DCHECK(call_stack_depth == 0, ""); // only one such set is allowed call_stack_depth = depth; AssertIsConsistent(); } // The ways we modify Region-s: void set_is_stack() { is_stack = true; } void set_start_addr(uintptr_t addr) { start_addr = addr; AssertIsConsistent(); } void set_end_addr(uintptr_t addr) { end_addr = addr; AssertIsConsistent(); } // Verifies that *this contains consistent data, crashes if not the case. void AssertIsConsistent() const { RAW_DCHECK(start_addr < end_addr, ""); RAW_DCHECK(call_stack_depth >= 0 && call_stack_depth <= kMaxStackDepth, ""); } // Post-default construction helper to make a Region suitable // for searching in RegionSet regions_. void SetRegionSetKey(uintptr_t addr) { // make sure *this has no usable data: if (DEBUG_MODE) memset(this, 0xFF, sizeof(*this)); end_addr = addr; } // Note: call_stack[kMaxStackDepth] as a member lets us make Region // a simple self-contained struct with correctly behaving bit-vise copying. // This simplifies the code of this module but wastes some memory: // in most-often use case of this module (leak checking) // only one call_stack element out of kMaxStackDepth is actually needed. // Making the storage for call_stack variable-sized, // substantially complicates memory management for the Region-s: // as they need to be created and manipulated for some time // w/o any memory allocations, yet are also given out to the users. }; // Find the region that covers addr and write its data into *result if found, // in which case *result gets filled so that it stays fully functional // even when the underlying region gets removed from MemoryRegionMap. // Returns success. Uses Lock/Unlock inside. static bool FindRegion(uintptr_t addr, Region* result); // Find the region that contains stack_top, mark that region as // a stack region, and write its data into *result if found, // in which case *result gets filled so that it stays fully functional // even when the underlying region gets removed from MemoryRegionMap. // Returns success. Uses Lock/Unlock inside. static bool FindAndMarkStackRegion(uintptr_t stack_top, Region* result); // Iterate over the buckets which store mmap and munmap counts per stack // trace. It calls "callback" for each bucket, and passes "arg" to it. template static void IterateBuckets(void (*callback)(const HeapProfileBucket*, Type), Type arg); // Get the bucket whose caller stack trace is "key". The stack trace is // used to a depth of "depth" at most. The requested bucket is created if // needed. // The bucket table is described in heap-profile-stats.h. static HeapProfileBucket* GetBucket(int depth, const void* const key[]); private: // our internal types ============================================== // Region comparator for sorting with STL struct RegionCmp { bool operator()(const Region& x, const Region& y) const { return x.end_addr < y.end_addr; } }; // We allocate STL objects in our own arena. struct MyAllocator { static void *Allocate(size_t n) { return LowLevelAlloc::AllocWithArena(n, arena_); } static void Free(const void *p, size_t /* n */) { LowLevelAlloc::Free(const_cast(p)); } }; // Set of the memory regions typedef std::set > RegionSet; public: // more in-depth interface ========================================== // STL iterator with values of Region typedef RegionSet::const_iterator RegionIterator; // Return the begin/end iterators to all the regions. // These need Lock/Unlock protection around their whole usage (loop). // Even when the same thread causes modifications during such a loop // (which are permitted due to recursive locking) // the loop iterator will still be valid as long as its region // has not been deleted, but EndRegionLocked should be // re-evaluated whenever the set of regions has changed. static RegionIterator BeginRegionLocked(); static RegionIterator EndRegionLocked(); // Return the accumulated sizes of mapped and unmapped regions. static int64 MapSize() { return map_size_; } static int64 UnmapSize() { return unmap_size_; } // Effectively private type from our .cc ================================= // public to let us declare global objects: union RegionSetRep; private: // representation =========================================================== // Counter of clients of this module that have called Init(). static int client_count_; // Maximal number of caller stack frames to save (>= 0). static int max_stack_depth_; // Arena used for our allocations in regions_. static LowLevelAlloc::Arena* arena_; // Set of the mmap/sbrk/mremap-ed memory regions // To be accessed *only* when Lock() is held. // Hence we protect the non-recursive lock used inside of arena_ // with our recursive Lock(). This lets a user prevent deadlocks // when threads are stopped by TCMalloc_ListAllProcessThreads at random spots // simply by acquiring our recursive Lock() before that. static RegionSet* regions_; // Lock to protect regions_ and buckets_ variables and the data behind. static SpinLock lock_; // Lock to protect the recursive lock itself. static SpinLock owner_lock_; // Recursion count for the recursive lock. static int recursion_count_; // The thread id of the thread that's inside the recursive lock. static pthread_t lock_owner_tid_; // Total size of all mapped pages so far static int64 map_size_; // Total size of all unmapped pages so far static int64 unmap_size_; // Bucket hash table which is described in heap-profile-stats.h. static HeapProfileBucket** bucket_table_ GUARDED_BY(lock_); static int num_buckets_ GUARDED_BY(lock_); // The following members are local to MemoryRegionMap::GetBucket() // and MemoryRegionMap::HandleSavedBucketsLocked() // and are file-level to ensure that they are initialized at load time. // // These are used as temporary storage to break the infinite cycle of mmap // calling our hook which (sometimes) causes mmap. It must be a static // fixed-size array. The size 20 is just an expected value for safety. // The details are described in memory_region_map.cc. // Number of unprocessed bucket inserts. static int saved_buckets_count_ GUARDED_BY(lock_); // Unprocessed inserts (must be big enough to hold all mmaps that can be // caused by a GetBucket call). // Bucket has no constructor, so that c-tor execution does not interfere // with the any-time use of the static memory behind saved_buckets. static HeapProfileBucket saved_buckets_[20] GUARDED_BY(lock_); static const void* saved_buckets_keys_[20][kMaxStackDepth] GUARDED_BY(lock_); // helpers ================================================================== // Helper for FindRegion and FindAndMarkStackRegion: // returns the region covering 'addr' or NULL; assumes our lock_ is held. static const Region* DoFindRegionLocked(uintptr_t addr); // Verifying wrapper around regions_->insert(region) // To be called to do InsertRegionLocked's work only! inline static void DoInsertRegionLocked(const Region& region); // Handle regions saved by InsertRegionLocked into a tmp static array // by calling insert_func on them. inline static void HandleSavedRegionsLocked( void (*insert_func)(const Region& region)); // Restore buckets saved in a tmp static array by GetBucket to the bucket // table where all buckets eventually should be. static void RestoreSavedBucketsLocked(); // Wrapper around DoInsertRegionLocked // that handles the case of recursive allocator calls. inline static void InsertRegionLocked(const Region& region); // Record addition of a memory region at address "start" of size "size" // (called from our mmap/mremap/sbrk hooks). static void RecordRegionAddition(const void* start, size_t size); // Record deletion of a memory region at address "start" of size "size" // (called from our munmap/mremap/sbrk hooks). static void RecordRegionRemoval(const void* start, size_t size); // Record deletion of a memory region of size "size" in a bucket whose // caller stack trace is "key". The stack trace is used to a depth of // "depth" at most. static void RecordRegionRemovalInBucket(int depth, const void* const key[], size_t size); // Hooks for MallocHook static void MmapHook(const void* result, const void* start, size_t size, int prot, int flags, int fd, off_t offset); static void MunmapHook(const void* ptr, size_t size); static void MremapHook(const void* result, const void* old_addr, size_t old_size, size_t new_size, int flags, const void* new_addr); static void SbrkHook(const void* result, ptrdiff_t increment); // Log all memory regions; Useful for debugging only. // Assumes Lock() is held static void LogAllLocked(); DISALLOW_COPY_AND_ASSIGN(MemoryRegionMap); }; template void MemoryRegionMap::IterateBuckets( void (*callback)(const HeapProfileBucket*, Type), Type callback_arg) { for (int index = 0; index < kHashTableSize; index++) { for (HeapProfileBucket* bucket = bucket_table_[index]; bucket != NULL; bucket = bucket->next) { callback(bucket, callback_arg); } } } #endif // BASE_MEMORY_REGION_MAP_H_ gperftools-2.4/src/tcmalloc.h0000644000000000000000000000571312440704174013201 00000000000000// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- // Copyright (c) 2007, Google Inc. // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // --- // Author: Craig Silverstein // // Some obscure memory-allocation routines may not be declared on all // systems. In those cases, we'll just declare them ourselves. // This file is meant to be used only internally, for unittests. #include #ifndef _XOPEN_SOURCE # define _XOPEN_SOURCE 600 // for posix_memalign #endif #include // for posix_memalign // FreeBSD has malloc.h, but complains if you use it #if defined(HAVE_MALLOC_H) && !defined(__FreeBSD__) #include // for memalign, valloc, pvalloc #endif // __THROW is defined in glibc systems. It means, counter-intuitively, // "This function will never throw an exception." It's an optional // optimization tool, but we may need to use it to match glibc prototypes. #ifndef __THROW // I guess we're not on a glibc system # define __THROW // __THROW is just an optimization, so ok to make it "" #endif #if !HAVE_CFREE_SYMBOL extern "C" void cfree(void* ptr) __THROW; #endif #if !HAVE_POSIX_MEMALIGN_SYMBOL extern "C" int posix_memalign(void** ptr, size_t align, size_t size) __THROW; #endif #if !HAVE_MEMALIGN_SYMBOL extern "C" void* memalign(size_t __alignment, size_t __size) __THROW; #endif #if !HAVE_VALLOC_SYMBOL extern "C" void* valloc(size_t __size) __THROW; #endif #if !HAVE_PVALLOC_SYMBOL extern "C" void* pvalloc(size_t __size) __THROW; #endif gperftools-2.4/src/pprof0000755000000000000000000053010012450132572012275 00000000000000#! /usr/bin/env perl # Copyright (c) 1998-2007, Google Inc. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # --- # Program for printing the profile generated by common/profiler.cc, # or by the heap profiler (common/debugallocation.cc) # # The profile contains a sequence of entries of the form: # # This program parses the profile, and generates user-readable # output. # # Examples: # # % tools/pprof "program" "profile" # Enters "interactive" mode # # % tools/pprof --text "program" "profile" # Generates one line per procedure # # % tools/pprof --gv "program" "profile" # Generates annotated call-graph and displays via "gv" # # % tools/pprof --gv --focus=Mutex "program" "profile" # Restrict to code paths that involve an entry that matches "Mutex" # # % tools/pprof --gv --focus=Mutex --ignore=string "program" "profile" # Restrict to code paths that involve an entry that matches "Mutex" # and does not match "string" # # % tools/pprof --list=IBF_CheckDocid "program" "profile" # Generates disassembly listing of all routines with at least one # sample that match the --list= pattern. The listing is # annotated with the flat and cumulative sample counts at each line. # # % tools/pprof --disasm=IBF_CheckDocid "program" "profile" # Generates disassembly listing of all routines with at least one # sample that match the --disasm= pattern. The listing is # annotated with the flat and cumulative sample counts at each PC value. # # TODO: Use color to indicate files? use strict; use warnings; use Getopt::Long; use Cwd; use POSIX; my $PPROF_VERSION = "2.0"; # These are the object tools we use which can come from a # user-specified location using --tools, from the PPROF_TOOLS # environment variable, or from the environment. my %obj_tool_map = ( "objdump" => "objdump", "nm" => "nm", "addr2line" => "addr2line", "c++filt" => "c++filt", ## ConfigureObjTools may add architecture-specific entries: #"nm_pdb" => "nm-pdb", # for reading windows (PDB-format) executables #"addr2line_pdb" => "addr2line-pdb", # ditto #"otool" => "otool", # equivalent of objdump on OS X ); # NOTE: these are lists, so you can put in commandline flags if you want. my @DOT = ("dot"); # leave non-absolute, since it may be in /usr/local my @GV = ("gv"); my @EVINCE = ("evince"); # could also be xpdf or perhaps acroread my @KCACHEGRIND = ("kcachegrind"); my @PS2PDF = ("ps2pdf"); # These are used for dynamic profiles my @URL_FETCHER = ("curl", "-s"); # These are the web pages that servers need to support for dynamic profiles my $HEAP_PAGE = "/pprof/heap"; my $PROFILE_PAGE = "/pprof/profile"; # must support cgi-param "?seconds=#" my $PMUPROFILE_PAGE = "/pprof/pmuprofile(?:\\?.*)?"; # must support cgi-param # ?seconds=#&event=x&period=n my $GROWTH_PAGE = "/pprof/growth"; my $CONTENTION_PAGE = "/pprof/contention"; my $WALL_PAGE = "/pprof/wall(?:\\?.*)?"; # accepts options like namefilter my $FILTEREDPROFILE_PAGE = "/pprof/filteredprofile(?:\\?.*)?"; my $CENSUSPROFILE_PAGE = "/pprof/censusprofile(?:\\?.*)?"; # must support cgi-param # "?seconds=#", # "?tags_regexp=#" and # "?type=#". my $SYMBOL_PAGE = "/pprof/symbol"; # must support symbol lookup via POST my $PROGRAM_NAME_PAGE = "/pprof/cmdline"; # These are the web pages that can be named on the command line. # All the alternatives must begin with /. my $PROFILES = "($HEAP_PAGE|$PROFILE_PAGE|$PMUPROFILE_PAGE|" . "$GROWTH_PAGE|$CONTENTION_PAGE|$WALL_PAGE|" . "$FILTEREDPROFILE_PAGE|$CENSUSPROFILE_PAGE)"; # default binary name my $UNKNOWN_BINARY = "(unknown)"; # There is a pervasive dependency on the length (in hex characters, # i.e., nibbles) of an address, distinguishing between 32-bit and # 64-bit profiles. To err on the safe size, default to 64-bit here: my $address_length = 16; my $dev_null = "/dev/null"; if (! -e $dev_null && $^O =~ /MSWin/) { # $^O is the OS perl was built for $dev_null = "nul"; } # A list of paths to search for shared object files my @prefix_list = (); # Special routine name that should not have any symbols. # Used as separator to parse "addr2line -i" output. my $sep_symbol = '_fini'; my $sep_address = undef; my @stackTraces; ##### Argument parsing ##### sub usage_string { return < is a space separated list of profile names. pprof [options] is a list of profile files where each file contains the necessary symbol mappings as well as profile data (likely generated with --raw). pprof [options] is a remote form. Symbols are obtained from host:port$SYMBOL_PAGE Each name can be: /path/to/profile - a path to a profile file host:port[/] - a location of a service to get profile from The / can be $HEAP_PAGE, $PROFILE_PAGE, /pprof/pmuprofile, $GROWTH_PAGE, $CONTENTION_PAGE, /pprof/wall, $CENSUSPROFILE_PAGE, or /pprof/filteredprofile. For instance: pprof http://myserver.com:80$HEAP_PAGE If / is omitted, the service defaults to $PROFILE_PAGE (cpu profiling). pprof --symbols Maps addresses to symbol names. In this mode, stdin should be a list of library mappings, in the same format as is found in the heap- and cpu-profile files (this loosely matches that of /proc/self/maps on linux), followed by a list of hex addresses to map, one per line. For more help with querying remote servers, including how to add the necessary server-side support code, see this filename (or one like it): /usr/doc/gperftools-$PPROF_VERSION/pprof_remote_servers.html Options: --cum Sort by cumulative data --base= Subtract from before display --interactive Run in interactive mode (interactive "help" gives help) [default] --seconds= Length of time for dynamic profiles [default=30 secs] --add_lib= Read additional symbols and line info from the given library --lib_prefix= Comma separated list of library path prefixes --no_strip_temp Do not strip template arguments from function names Reporting Granularity: --addresses Report at address level --lines Report at source line level --functions Report at function level [default] --files Report at source file level Output type: --text Generate text report --stacks Generate stack traces similar to the heap profiler (requires --text) --callgrind Generate callgrind format to stdout --gv Generate Postscript and display --evince Generate PDF and display --web Generate SVG and display --list= Generate source listing of matching routines --disasm= Generate disassembly of matching routines --symbols Print demangled symbol names found at given addresses --dot Generate DOT file to stdout --ps Generate Postcript to stdout --pdf Generate PDF to stdout --svg Generate SVG to stdout --gif Generate GIF to stdout --raw Generate symbolized pprof data (useful with remote fetch) Heap-Profile Options: --inuse_space Display in-use (mega)bytes [default] --inuse_objects Display in-use objects --alloc_space Display allocated (mega)bytes --alloc_objects Display allocated objects --show_bytes Display space in bytes --drop_negative Ignore negative differences Contention-profile options: --total_delay Display total delay at each region [default] --contentions Display number of delays at each region --mean_delay Display mean delay at each region Call-graph Options: --nodecount= Show at most so many nodes [default=80] --nodefraction= Hide nodes below *total [default=.005] --edgefraction= Hide edges below *total [default=.001] --maxdegree= Max incoming/outgoing edges per node [default=8] --focus= Focus on nodes matching --ignore= Ignore nodes matching --scale= Set GV scaling [default=0] --heapcheck Make nodes with non-0 object counts (i.e. direct leak generators) more visible Miscellaneous: --no-auto-signal-frm Automatically drop 2nd frame that is always same (cpu-only) (assuming that it is artifact of bad stack captures which include signal handler frames) --show_addresses Always show addresses when applicable --tools=[,...] \$PATH for object tool pathnames --test Run unit tests --help This message --version Version information Environment Variables: PPROF_TMPDIR Profiles directory. Defaults to \$HOME/pprof PPROF_TOOLS Prefix for object tools pathnames Examples: pprof /bin/ls ls.prof Enters "interactive" mode pprof --text /bin/ls ls.prof Outputs one line per procedure pprof --web /bin/ls ls.prof Displays annotated call-graph in web browser pprof --gv /bin/ls ls.prof Displays annotated call-graph via 'gv' pprof --gv --focus=Mutex /bin/ls ls.prof Restricts to code paths including a .*Mutex.* entry pprof --gv --focus=Mutex --ignore=string /bin/ls ls.prof Code paths including Mutex but not string pprof --list=getdir /bin/ls ls.prof (Per-line) annotated source listing for getdir() pprof --disasm=getdir /bin/ls ls.prof (Per-PC) annotated disassembly for getdir() pprof http://localhost:1234/ Enters "interactive" mode pprof --text localhost:1234 Outputs one line per procedure for localhost:1234 pprof --raw localhost:1234 > ./local.raw pprof --text ./local.raw Fetches a remote profile for later analysis and then analyzes it in text mode. EOF } sub version_string { return < \$main::opt_help, "version!" => \$main::opt_version, "show_addresses!"=> \$main::opt_show_addresses, "no-auto-signal-frm!"=> \$main::opt_no_auto_signal_frames, "cum!" => \$main::opt_cum, "base=s" => \$main::opt_base, "seconds=i" => \$main::opt_seconds, "add_lib=s" => \$main::opt_lib, "lib_prefix=s" => \$main::opt_lib_prefix, "functions!" => \$main::opt_functions, "lines!" => \$main::opt_lines, "addresses!" => \$main::opt_addresses, "files!" => \$main::opt_files, "text!" => \$main::opt_text, "stacks!" => \$main::opt_stacks, "callgrind!" => \$main::opt_callgrind, "list=s" => \$main::opt_list, "disasm=s" => \$main::opt_disasm, "symbols!" => \$main::opt_symbols, "gv!" => \$main::opt_gv, "evince!" => \$main::opt_evince, "web!" => \$main::opt_web, "dot!" => \$main::opt_dot, "ps!" => \$main::opt_ps, "pdf!" => \$main::opt_pdf, "svg!" => \$main::opt_svg, "gif!" => \$main::opt_gif, "raw!" => \$main::opt_raw, "interactive!" => \$main::opt_interactive, "nodecount=i" => \$main::opt_nodecount, "nodefraction=f" => \$main::opt_nodefraction, "edgefraction=f" => \$main::opt_edgefraction, "maxdegree=i" => \$main::opt_maxdegree, "focus=s" => \$main::opt_focus, "ignore=s" => \$main::opt_ignore, "scale=i" => \$main::opt_scale, "heapcheck" => \$main::opt_heapcheck, "inuse_space!" => \$main::opt_inuse_space, "inuse_objects!" => \$main::opt_inuse_objects, "alloc_space!" => \$main::opt_alloc_space, "alloc_objects!" => \$main::opt_alloc_objects, "show_bytes!" => \$main::opt_show_bytes, "drop_negative!" => \$main::opt_drop_negative, "total_delay!" => \$main::opt_total_delay, "contentions!" => \$main::opt_contentions, "mean_delay!" => \$main::opt_mean_delay, "tools=s" => \$main::opt_tools, "no_strip_temp!" => \$main::opt_no_strip_temp, "test!" => \$main::opt_test, "debug!" => \$main::opt_debug, # Undocumented flags used only by unittests: "test_stride=i" => \$main::opt_test_stride, ) || usage("Invalid option(s)"); # Deal with the standard --help and --version if ($main::opt_help) { print usage_string(); exit(0); } if ($main::opt_version) { print version_string(); exit(0); } # Disassembly/listing/symbols mode requires address-level info if ($main::opt_disasm || $main::opt_list || $main::opt_symbols) { $main::opt_functions = 0; $main::opt_lines = 0; $main::opt_addresses = 1; $main::opt_files = 0; } # Check heap-profiling flags if ($main::opt_inuse_space + $main::opt_inuse_objects + $main::opt_alloc_space + $main::opt_alloc_objects > 1) { usage("Specify at most on of --inuse/--alloc options"); } # Check output granularities my $grains = $main::opt_functions + $main::opt_lines + $main::opt_addresses + $main::opt_files + 0; if ($grains > 1) { usage("Only specify one output granularity option"); } if ($grains == 0) { $main::opt_functions = 1; } # Check output modes my $modes = $main::opt_text + $main::opt_callgrind + ($main::opt_list eq '' ? 0 : 1) + ($main::opt_disasm eq '' ? 0 : 1) + ($main::opt_symbols == 0 ? 0 : 1) + $main::opt_gv + $main::opt_evince + $main::opt_web + $main::opt_dot + $main::opt_ps + $main::opt_pdf + $main::opt_svg + $main::opt_gif + $main::opt_raw + $main::opt_interactive + 0; if ($modes > 1) { usage("Only specify one output mode"); } if ($modes == 0) { if (-t STDOUT) { # If STDOUT is a tty, activate interactive mode $main::opt_interactive = 1; } else { $main::opt_text = 1; } } if ($main::opt_test) { RunUnitTests(); # Should not return exit(1); } # Binary name and profile arguments list $main::prog = ""; @main::pfile_args = (); # Remote profiling without a binary (using $SYMBOL_PAGE instead) if (@ARGV > 0) { if (IsProfileURL($ARGV[0])) { printf STDERR "Using remote profile at $ARGV[0].\n"; $main::use_symbol_page = 1; } elsif (IsSymbolizedProfileFile($ARGV[0])) { $main::use_symbolized_profile = 1; $main::prog = $UNKNOWN_BINARY; # will be set later from the profile file } } if ($main::use_symbol_page || $main::use_symbolized_profile) { # We don't need a binary! my %disabled = ('--lines' => $main::opt_lines, '--disasm' => $main::opt_disasm); for my $option (keys %disabled) { usage("$option cannot be used without a binary") if $disabled{$option}; } # Set $main::prog later... scalar(@ARGV) || usage("Did not specify profile file"); } elsif ($main::opt_symbols) { # --symbols needs a binary-name (to run nm on, etc) but not profiles $main::prog = shift(@ARGV) || usage("Did not specify program"); } else { $main::prog = shift(@ARGV) || usage("Did not specify program"); scalar(@ARGV) || usage("Did not specify profile file"); } # Parse profile file/location arguments foreach my $farg (@ARGV) { if ($farg =~ m/(.*)\@([0-9]+)(|\/.*)$/ ) { my $machine = $1; my $num_machines = $2; my $path = $3; for (my $i = 0; $i < $num_machines; $i++) { unshift(@main::pfile_args, "$i.$machine$path"); } } else { unshift(@main::pfile_args, $farg); } } if ($main::use_symbol_page) { unless (IsProfileURL($main::pfile_args[0])) { error("The first profile should be a remote form to use $SYMBOL_PAGE\n"); } CheckSymbolPage(); $main::prog = FetchProgramName(); } elsif (!$main::use_symbolized_profile) { # may not need objtools! ConfigureObjTools($main::prog) } # Break the opt_lib_prefix into the prefix_list array @prefix_list = split (',', $main::opt_lib_prefix); # Remove trailing / from the prefixes, in the list to prevent # searching things like /my/path//lib/mylib.so foreach (@prefix_list) { s|/+$||; } } sub Main() { Init(); $main::collected_profile = undef; @main::profile_files = (); $main::op_time = time(); # Printing symbols is special and requires a lot less info that most. if ($main::opt_symbols) { PrintSymbols(*STDIN); # Get /proc/maps and symbols output from stdin return; } # Fetch all profile data FetchDynamicProfiles(); # this will hold symbols that we read from the profile files my $symbol_map = {}; # Read one profile, pick the last item on the list my $data = ReadProfile($main::prog, pop(@main::profile_files)); my $profile = $data->{profile}; my $pcs = $data->{pcs}; my $libs = $data->{libs}; # Info about main program and shared libraries $symbol_map = MergeSymbols($symbol_map, $data->{symbols}); # Add additional profiles, if available. if (scalar(@main::profile_files) > 0) { foreach my $pname (@main::profile_files) { my $data2 = ReadProfile($main::prog, $pname); $profile = AddProfile($profile, $data2->{profile}); $pcs = AddPcs($pcs, $data2->{pcs}); $symbol_map = MergeSymbols($symbol_map, $data2->{symbols}); } } # Subtract base from profile, if specified if ($main::opt_base ne '') { my $base = ReadProfile($main::prog, $main::opt_base); $profile = SubtractProfile($profile, $base->{profile}); $pcs = AddPcs($pcs, $base->{pcs}); $symbol_map = MergeSymbols($symbol_map, $base->{symbols}); } # Get total data in profile my $total = TotalProfile($profile); # Collect symbols my $symbols; if ($main::use_symbolized_profile) { $symbols = FetchSymbols($pcs, $symbol_map); } elsif ($main::use_symbol_page) { $symbols = FetchSymbols($pcs); } else { # TODO(csilvers): $libs uses the /proc/self/maps data from profile1, # which may differ from the data from subsequent profiles, especially # if they were run on different machines. Use appropriate libs for # each pc somehow. $symbols = ExtractSymbols($libs, $pcs); } # Remove uniniteresting stack items $profile = RemoveUninterestingFrames($symbols, $profile); # Focus? if ($main::opt_focus ne '') { $profile = FocusProfile($symbols, $profile, $main::opt_focus); } # Ignore? if ($main::opt_ignore ne '') { $profile = IgnoreProfile($symbols, $profile, $main::opt_ignore); } my $calls = ExtractCalls($symbols, $profile); # Reduce profiles to required output granularity, and also clean # each stack trace so a given entry exists at most once. my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); # Print if (!$main::opt_interactive) { if ($main::opt_disasm) { PrintDisassembly($libs, $flat, $cumulative, $main::opt_disasm); } elsif ($main::opt_list) { PrintListing($total, $libs, $flat, $cumulative, $main::opt_list, 0); } elsif ($main::opt_text) { # Make sure the output is empty when have nothing to report # (only matters when --heapcheck is given but we must be # compatible with old branches that did not pass --heapcheck always): if ($total != 0) { printf("Total: %s %s\n", Unparse($total), Units()); } if ($main::opt_stacks) { printf("Stacks:\n\n"); PrintStacksForText($symbols, $profile); } PrintText($symbols, $flat, $cumulative, -1); } elsif ($main::opt_raw) { PrintSymbolizedProfile($symbols, $profile, $main::prog); } elsif ($main::opt_callgrind) { PrintCallgrind($calls); } else { if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) { if ($main::opt_gv) { RunGV(TempName($main::next_tmpfile, "ps"), ""); } elsif ($main::opt_evince) { RunEvince(TempName($main::next_tmpfile, "pdf"), ""); } elsif ($main::opt_web) { my $tmp = TempName($main::next_tmpfile, "svg"); RunWeb($tmp); # The command we run might hand the file name off # to an already running browser instance and then exit. # Normally, we'd remove $tmp on exit (right now), # but fork a child to remove $tmp a little later, so that the # browser has time to load it first. delete $main::tempnames{$tmp}; if (fork() == 0) { sleep 5; unlink($tmp); exit(0); } } } else { cleanup(); exit(1); } } } else { InteractiveMode($profile, $symbols, $libs, $total); } cleanup(); exit(0); } ##### Entry Point ##### Main(); # Temporary code to detect if we're running on a Goobuntu system. # These systems don't have the right stuff installed for the special # Readline libraries to work, so as a temporary workaround, we default # to using the normal stdio code, rather than the fancier readline-based # code sub ReadlineMightFail { if (-e '/lib/libtermcap.so.2') { return 0; # libtermcap exists, so readline should be okay } else { return 1; } } sub RunGV { my $fname = shift; my $bg = shift; # "" or " &" if we should run in background if (!system(ShellEscape(@GV, "--version") . " >$dev_null 2>&1")) { # Options using double dash are supported by this gv version. # Also, turn on noantialias to better handle bug in gv for # postscript files with large dimensions. # TODO: Maybe we should not pass the --noantialias flag # if the gv version is known to work properly without the flag. system(ShellEscape(@GV, "--scale=$main::opt_scale", "--noantialias", $fname) . $bg); } else { # Old gv version - only supports options that use single dash. print STDERR ShellEscape(@GV, "-scale", $main::opt_scale) . "\n"; system(ShellEscape(@GV, "-scale", "$main::opt_scale", $fname) . $bg); } } sub RunEvince { my $fname = shift; my $bg = shift; # "" or " &" if we should run in background system(ShellEscape(@EVINCE, $fname) . $bg); } sub RunWeb { my $fname = shift; print STDERR "Loading web page file:///$fname\n"; if (`uname` =~ /Darwin/) { # OS X: open will use standard preference for SVG files. system("/usr/bin/open", $fname); return; } if (`uname` =~ /MINGW/) { # Windows(MinGW): open will use standard preference for SVG files. system("cmd", "/c", "start", $fname); return; } # Some kind of Unix; try generic symlinks, then specific browsers. # (Stop once we find one.) # Works best if the browser is already running. my @alt = ( "/etc/alternatives/gnome-www-browser", "/etc/alternatives/x-www-browser", "google-chrome", "firefox", ); foreach my $b (@alt) { if (system($b, $fname) == 0) { return; } } print STDERR "Could not load web browser.\n"; } sub RunKcachegrind { my $fname = shift; my $bg = shift; # "" or " &" if we should run in background print STDERR "Starting '@KCACHEGRIND " . $fname . $bg . "'\n"; system(ShellEscape(@KCACHEGRIND, $fname) . $bg); } ##### Interactive helper routines ##### sub InteractiveMode { $| = 1; # Make output unbuffered for interactive mode my ($orig_profile, $symbols, $libs, $total) = @_; print STDERR "Welcome to pprof! For help, type 'help'.\n"; # Use ReadLine if it's installed and input comes from a console. if ( -t STDIN && !ReadlineMightFail() && defined(eval {require Term::ReadLine}) ) { my $term = new Term::ReadLine 'pprof'; while ( defined ($_ = $term->readline('(pprof) '))) { $term->addhistory($_) if /\S/; if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) { last; # exit when we get an interactive command to quit } } } else { # don't have readline while (1) { print STDERR "(pprof) "; $_ = ; last if ! defined $_ ; s/\r//g; # turn windows-looking lines into unix-looking lines # Save some flags that might be reset by InteractiveCommand() my $save_opt_lines = $main::opt_lines; if (!InteractiveCommand($orig_profile, $symbols, $libs, $total, $_)) { last; # exit when we get an interactive command to quit } # Restore flags $main::opt_lines = $save_opt_lines; } } } # Takes two args: orig profile, and command to run. # Returns 1 if we should keep going, or 0 if we were asked to quit sub InteractiveCommand { my($orig_profile, $symbols, $libs, $total, $command) = @_; $_ = $command; # just to make future m//'s easier if (!defined($_)) { print STDERR "\n"; return 0; } if (m/^\s*quit/) { return 0; } if (m/^\s*help/) { InteractiveHelpMessage(); return 1; } # Clear all the mode options -- mode is controlled by "$command" $main::opt_text = 0; $main::opt_callgrind = 0; $main::opt_disasm = 0; $main::opt_list = 0; $main::opt_gv = 0; $main::opt_evince = 0; $main::opt_cum = 0; if (m/^\s*(text|top)(\d*)\s*(.*)/) { $main::opt_text = 1; my $line_limit = ($2 ne "") ? int($2) : 10; my $routine; my $ignore; ($routine, $ignore) = ParseInteractiveArgs($3); my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); PrintText($symbols, $flat, $cumulative, $line_limit); return 1; } if (m/^\s*callgrind\s*([^ \n]*)/) { $main::opt_callgrind = 1; # Get derived profiles my $calls = ExtractCalls($symbols, $orig_profile); my $filename = $1; if ( $1 eq '' ) { $filename = TempName($main::next_tmpfile, "callgrind"); } PrintCallgrind($calls, $filename); if ( $1 eq '' ) { RunKcachegrind($filename, " & "); $main::next_tmpfile++; } return 1; } if (m/^\s*(web)?list\s*(.+)/) { my $html = (defined($1) && ($1 eq "web")); $main::opt_list = 1; my $routine; my $ignore; ($routine, $ignore) = ParseInteractiveArgs($2); my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); PrintListing($total, $libs, $flat, $cumulative, $routine, $html); return 1; } if (m/^\s*disasm\s*(.+)/) { $main::opt_disasm = 1; my $routine; my $ignore; ($routine, $ignore) = ParseInteractiveArgs($1); # Process current profile to account for various settings my $profile = ProcessProfile($total, $orig_profile, $symbols, "", $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); PrintDisassembly($libs, $flat, $cumulative, $routine); return 1; } if (m/^\s*(gv|web|evince)\s*(.*)/) { $main::opt_gv = 0; $main::opt_evince = 0; $main::opt_web = 0; if ($1 eq "gv") { $main::opt_gv = 1; } elsif ($1 eq "evince") { $main::opt_evince = 1; } elsif ($1 eq "web") { $main::opt_web = 1; } my $focus; my $ignore; ($focus, $ignore) = ParseInteractiveArgs($2); # Process current profile to account for various settings my $profile = ProcessProfile($total, $orig_profile, $symbols, $focus, $ignore); my $reduced = ReduceProfile($symbols, $profile); # Get derived profiles my $flat = FlatProfile($reduced); my $cumulative = CumulativeProfile($reduced); if (PrintDot($main::prog, $symbols, $profile, $flat, $cumulative, $total)) { if ($main::opt_gv) { RunGV(TempName($main::next_tmpfile, "ps"), " &"); } elsif ($main::opt_evince) { RunEvince(TempName($main::next_tmpfile, "pdf"), " &"); } elsif ($main::opt_web) { RunWeb(TempName($main::next_tmpfile, "svg")); } $main::next_tmpfile++; } return 1; } if (m/^\s*$/) { return 1; } print STDERR "Unknown command: try 'help'.\n"; return 1; } sub ProcessProfile { my $total_count = shift; my $orig_profile = shift; my $symbols = shift; my $focus = shift; my $ignore = shift; # Process current profile to account for various settings my $profile = $orig_profile; printf("Total: %s %s\n", Unparse($total_count), Units()); if ($focus ne '') { $profile = FocusProfile($symbols, $profile, $focus); my $focus_count = TotalProfile($profile); printf("After focusing on '%s': %s %s of %s (%0.1f%%)\n", $focus, Unparse($focus_count), Units(), Unparse($total_count), ($focus_count*100.0) / $total_count); } if ($ignore ne '') { $profile = IgnoreProfile($symbols, $profile, $ignore); my $ignore_count = TotalProfile($profile); printf("After ignoring '%s': %s %s of %s (%0.1f%%)\n", $ignore, Unparse($ignore_count), Units(), Unparse($total_count), ($ignore_count*100.0) / $total_count); } return $profile; } sub InteractiveHelpMessage { print STDERR <{$k}; my @addrs = split(/\n/, $k); if ($#addrs >= 0) { my $depth = $#addrs + 1; # int(foo / 2**32) is the only reliable way to get rid of bottom # 32 bits on both 32- and 64-bit systems. if ($big_endian) { print pack('L*', int($count / 2**32), $count & 0xFFFFFFFF); print pack('L*', int($depth / 2**32), $depth & 0xFFFFFFFF); } else { print pack('L*', $count & 0xFFFFFFFF, int($count / 2**32)); print pack('L*', $depth & 0xFFFFFFFF, int($depth / 2**32)); } foreach my $full_addr (@addrs) { my $addr = $full_addr; $addr =~ s/0x0*//; # strip off leading 0x, zeroes if (length($addr) > 16) { print STDERR "Invalid address in profile: $full_addr\n"; next; } my $low_addr = substr($addr, -8); # get last 8 hex chars my $high_addr = substr($addr, -16, 8); # get up to 8 more hex chars if ($big_endian) { print pack('L*', hex('0x' . $high_addr), hex('0x' . $low_addr)); } else { print pack('L*', hex('0x' . $low_addr), hex('0x' . $high_addr)); } } } } } # Print symbols and profile data sub PrintSymbolizedProfile { my $symbols = shift; my $profile = shift; my $prog = shift; $SYMBOL_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $symbol_marker = $&; print '--- ', $symbol_marker, "\n"; if (defined($prog)) { print 'binary=', $prog, "\n"; } while (my ($pc, $name) = each(%{$symbols})) { my $sep = ' '; print '0x', $pc; # We have a list of function names, which include the inlined # calls. They are separated (and terminated) by --, which is # illegal in function names. for (my $j = 2; $j <= $#{$name}; $j += 3) { print $sep, $name->[$j]; $sep = '--'; } print "\n"; } print '---', "\n"; $PROFILE_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $profile_marker = $&; print '--- ', $profile_marker, "\n"; if (defined($main::collected_profile)) { # if used with remote fetch, simply dump the collected profile to output. open(SRC, "<$main::collected_profile"); while () { print $_; } close(SRC); } else { # dump a cpu-format profile to standard out PrintProfileData($profile); } } # Print text output sub PrintText { my $symbols = shift; my $flat = shift; my $cumulative = shift; my $line_limit = shift; if ($main::opt_stacks && @stackTraces) { foreach (sort { (split " ", $b)[1] <=> (split " ", $a)[1]; } @stackTraces) { print "$_\n" if $main::opt_debug; my ($n1, $s1, $n2, $s2, @addrs) = split; print "Leak of $s1 bytes in $n1 objects allocated from:\n"; foreach my $pcstr (@addrs) { $pcstr =~ s/^0x//; my $sym; if (! defined $symbols->{$pcstr}) { $sym = "unknown"; } else { $sym = "$symbols->{$pcstr}[0] $symbols->{$pcstr}[1]"; } print "\t@ $pcstr $sym\n"; } } print "\n"; } my $total = TotalProfile($flat); # Which profile to sort by? my $s = $main::opt_cum ? $cumulative : $flat; my $running_sum = 0; my $lines = 0; foreach my $k (sort { GetEntry($s, $b) <=> GetEntry($s, $a) || $a cmp $b } keys(%{$cumulative})) { my $f = GetEntry($flat, $k); my $c = GetEntry($cumulative, $k); $running_sum += $f; my $sym = $k; if (exists($symbols->{$k})) { $sym = $symbols->{$k}->[0] . " " . $symbols->{$k}->[1]; if ($main::opt_addresses) { $sym = $k . " " . $sym; } } if ($f != 0 || $c != 0) { printf("%8s %6s %6s %8s %6s %s\n", Unparse($f), Percent($f, $total), Percent($running_sum, $total), Unparse($c), Percent($c, $total), $sym); } $lines++; last if ($line_limit >= 0 && $lines >= $line_limit); } } # Callgrind format has a compression for repeated function and file # names. You show the name the first time, and just use its number # subsequently. This can cut down the file to about a third or a # quarter of its uncompressed size. $key and $val are the key/value # pair that would normally be printed by callgrind; $map is a map from # value to number. sub CompressedCGName { my($key, $val, $map) = @_; my $idx = $map->{$val}; # For very short keys, providing an index hurts rather than helps. if (length($val) <= 3) { return "$key=$val\n"; } elsif (defined($idx)) { return "$key=($idx)\n"; } else { # scalar(keys $map) gives the number of items in the map. $idx = scalar(keys(%{$map})) + 1; $map->{$val} = $idx; return "$key=($idx) $val\n"; } } # Print the call graph in a way that's suiteable for callgrind. sub PrintCallgrind { my $calls = shift; my $filename; my %filename_to_index_map; my %fnname_to_index_map; if ($main::opt_interactive) { $filename = shift; print STDERR "Writing callgrind file to '$filename'.\n" } else { $filename = "&STDOUT"; } open(CG, ">$filename"); printf CG ("events: Hits\n\n"); foreach my $call ( map { $_->[0] } sort { $a->[1] cmp $b ->[1] || $a->[2] <=> $b->[2] } map { /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/; [$_, $1, $2] } keys %$calls ) { my $count = int($calls->{$call}); $call =~ /([^:]+):(\d+):([^ ]+)( -> ([^:]+):(\d+):(.+))?/; my ( $caller_file, $caller_line, $caller_function, $callee_file, $callee_line, $callee_function ) = ( $1, $2, $3, $5, $6, $7 ); # TODO(csilvers): for better compression, collect all the # caller/callee_files and functions first, before printing # anything, and only compress those referenced more than once. printf CG CompressedCGName("fl", $caller_file, \%filename_to_index_map); printf CG CompressedCGName("fn", $caller_function, \%fnname_to_index_map); if (defined $6) { printf CG CompressedCGName("cfl", $callee_file, \%filename_to_index_map); printf CG CompressedCGName("cfn", $callee_function, \%fnname_to_index_map); printf CG ("calls=$count $callee_line\n"); } printf CG ("$caller_line $count\n\n"); } } # Print disassembly for all all routines that match $main::opt_disasm sub PrintDisassembly { my $libs = shift; my $flat = shift; my $cumulative = shift; my $disasm_opts = shift; my $total = TotalProfile($flat); foreach my $lib (@{$libs}) { my $symbol_table = GetProcedureBoundaries($lib->[0], $disasm_opts); my $offset = AddressSub($lib->[1], $lib->[3]); foreach my $routine (sort ByName keys(%{$symbol_table})) { my $start_addr = $symbol_table->{$routine}->[0]; my $end_addr = $symbol_table->{$routine}->[1]; # See if there are any samples in this routine my $length = hex(AddressSub($end_addr, $start_addr)); my $addr = AddressAdd($start_addr, $offset); for (my $i = 0; $i < $length; $i++) { if (defined($cumulative->{$addr})) { PrintDisassembledFunction($lib->[0], $offset, $routine, $flat, $cumulative, $start_addr, $end_addr, $total); last; } $addr = AddressInc($addr); } } } } # Return reference to array of tuples of the form: # [start_address, filename, linenumber, instruction, limit_address] # E.g., # ["0x806c43d", "/foo/bar.cc", 131, "ret", "0x806c440"] sub Disassemble { my $prog = shift; my $offset = shift; my $start_addr = shift; my $end_addr = shift; my $objdump = $obj_tool_map{"objdump"}; my $cmd = ShellEscape($objdump, "-C", "-d", "-l", "--no-show-raw-insn", "--start-address=0x$start_addr", "--stop-address=0x$end_addr", $prog); open(OBJDUMP, "$cmd |") || error("$cmd: $!\n"); my @result = (); my $filename = ""; my $linenumber = -1; my $last = ["", "", "", ""]; while () { s/\r//g; # turn windows-looking lines into unix-looking lines chop; if (m|\s*([^:\s]+):(\d+)\s*$|) { # Location line of the form: # : $filename = $1; $linenumber = $2; } elsif (m/^ +([0-9a-f]+):\s*(.*)/) { # Disassembly line -- zero-extend address to full length my $addr = HexExtend($1); my $k = AddressAdd($addr, $offset); $last->[4] = $k; # Store ending address for previous instruction $last = [$k, $filename, $linenumber, $2, $end_addr]; push(@result, $last); } } close(OBJDUMP); return @result; } # The input file should contain lines of the form /proc/maps-like # output (same format as expected from the profiles) or that looks # like hex addresses (like "0xDEADBEEF"). We will parse all # /proc/maps output, and for all the hex addresses, we will output # "short" symbol names, one per line, in the same order as the input. sub PrintSymbols { my $maps_and_symbols_file = shift; # ParseLibraries expects pcs to be in a set. Fine by us... my @pclist = (); # pcs in sorted order my $pcs = {}; my $map = ""; foreach my $line (<$maps_and_symbols_file>) { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines if ($line =~ /\b(0x[0-9a-f]+)\b/i) { push(@pclist, HexExtend($1)); $pcs->{$pclist[-1]} = 1; } else { $map .= $line; } } my $libs = ParseLibraries($main::prog, $map, $pcs); my $symbols = ExtractSymbols($libs, $pcs); foreach my $pc (@pclist) { # ->[0] is the shortname, ->[2] is the full name print(($symbols->{$pc}->[0] || "??") . "\n"); } } # For sorting functions by name sub ByName { return ShortFunctionName($a) cmp ShortFunctionName($b); } # Print source-listing for all all routines that match $list_opts sub PrintListing { my $total = shift; my $libs = shift; my $flat = shift; my $cumulative = shift; my $list_opts = shift; my $html = shift; my $output = \*STDOUT; my $fname = ""; if ($html) { # Arrange to write the output to a temporary file $fname = TempName($main::next_tmpfile, "html"); $main::next_tmpfile++; if (!open(TEMP, ">$fname")) { print STDERR "$fname: $!\n"; return; } $output = \*TEMP; print $output HtmlListingHeader(); printf $output ("
%s
Total: %s %s
\n", $main::prog, Unparse($total), Units()); } my $listed = 0; foreach my $lib (@{$libs}) { my $symbol_table = GetProcedureBoundaries($lib->[0], $list_opts); my $offset = AddressSub($lib->[1], $lib->[3]); foreach my $routine (sort ByName keys(%{$symbol_table})) { # Print if there are any samples in this routine my $start_addr = $symbol_table->{$routine}->[0]; my $end_addr = $symbol_table->{$routine}->[1]; my $length = hex(AddressSub($end_addr, $start_addr)); my $addr = AddressAdd($start_addr, $offset); for (my $i = 0; $i < $length; $i++) { if (defined($cumulative->{$addr})) { $listed += PrintSource( $lib->[0], $offset, $routine, $flat, $cumulative, $start_addr, $end_addr, $html, $output); last; } $addr = AddressInc($addr); } } } if ($html) { if ($listed > 0) { print $output HtmlListingFooter(); close($output); RunWeb($fname); } else { close($output); unlink($fname); } } } sub HtmlListingHeader { return <<'EOF'; Pprof listing EOF } sub HtmlListingFooter { return <<'EOF'; EOF } sub HtmlEscape { my $text = shift; $text =~ s/&/&/g; $text =~ s//>/g; return $text; } # Returns the indentation of the line, if it has any non-whitespace # characters. Otherwise, returns -1. sub Indentation { my $line = shift; if (m/^(\s*)\S/) { return length($1); } else { return -1; } } # If the symbol table contains inlining info, Disassemble() may tag an # instruction with a location inside an inlined function. But for # source listings, we prefer to use the location in the function we # are listing. So use MapToSymbols() to fetch full location # information for each instruction and then pick out the first # location from a location list (location list contains callers before # callees in case of inlining). # # After this routine has run, each entry in $instructions contains: # [0] start address # [1] filename for function we are listing # [2] line number for function we are listing # [3] disassembly # [4] limit address # [5] most specific filename (may be different from [1] due to inlining) # [6] most specific line number (may be different from [2] due to inlining) sub GetTopLevelLineNumbers { my ($lib, $offset, $instructions) = @_; my $pcs = []; for (my $i = 0; $i <= $#{$instructions}; $i++) { push(@{$pcs}, $instructions->[$i]->[0]); } my $symbols = {}; MapToSymbols($lib, $offset, $pcs, $symbols); for (my $i = 0; $i <= $#{$instructions}; $i++) { my $e = $instructions->[$i]; push(@{$e}, $e->[1]); push(@{$e}, $e->[2]); my $addr = $e->[0]; my $sym = $symbols->{$addr}; if (defined($sym)) { if ($#{$sym} >= 2 && $sym->[1] =~ m/^(.*):(\d+)$/) { $e->[1] = $1; # File name $e->[2] = $2; # Line number } } } } # Print source-listing for one routine sub PrintSource { my $prog = shift; my $offset = shift; my $routine = shift; my $flat = shift; my $cumulative = shift; my $start_addr = shift; my $end_addr = shift; my $html = shift; my $output = shift; # Disassemble all instructions (just to get line numbers) my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr); GetTopLevelLineNumbers($prog, $offset, \@instructions); # Hack 1: assume that the first source file encountered in the # disassembly contains the routine my $filename = undef; for (my $i = 0; $i <= $#instructions; $i++) { if ($instructions[$i]->[2] >= 0) { $filename = $instructions[$i]->[1]; last; } } if (!defined($filename)) { print STDERR "no filename found in $routine\n"; return 0; } # Hack 2: assume that the largest line number from $filename is the # end of the procedure. This is typically safe since if P1 contains # an inlined call to P2, then P2 usually occurs earlier in the # source file. If this does not work, we might have to compute a # density profile or just print all regions we find. my $lastline = 0; for (my $i = 0; $i <= $#instructions; $i++) { my $f = $instructions[$i]->[1]; my $l = $instructions[$i]->[2]; if (($f eq $filename) && ($l > $lastline)) { $lastline = $l; } } # Hack 3: assume the first source location from "filename" is the start of # the source code. my $firstline = 1; for (my $i = 0; $i <= $#instructions; $i++) { if ($instructions[$i]->[1] eq $filename) { $firstline = $instructions[$i]->[2]; last; } } # Hack 4: Extend last line forward until its indentation is less than # the indentation we saw on $firstline my $oldlastline = $lastline; { if (!open(FILE, "<$filename")) { print STDERR "$filename: $!\n"; return 0; } my $l = 0; my $first_indentation = -1; while () { s/\r//g; # turn windows-looking lines into unix-looking lines $l++; my $indent = Indentation($_); if ($l >= $firstline) { if ($first_indentation < 0 && $indent >= 0) { $first_indentation = $indent; last if ($first_indentation == 0); } } if ($l >= $lastline && $indent >= 0) { if ($indent >= $first_indentation) { $lastline = $l+1; } else { last; } } } close(FILE); } # Assign all samples to the range $firstline,$lastline, # Hack 4: If an instruction does not occur in the range, its samples # are moved to the next instruction that occurs in the range. my $samples1 = {}; # Map from line number to flat count my $samples2 = {}; # Map from line number to cumulative count my $running1 = 0; # Unassigned flat counts my $running2 = 0; # Unassigned cumulative counts my $total1 = 0; # Total flat counts my $total2 = 0; # Total cumulative counts my %disasm = (); # Map from line number to disassembly my $running_disasm = ""; # Unassigned disassembly my $skip_marker = "---\n"; if ($html) { $skip_marker = ""; for (my $l = $firstline; $l <= $lastline; $l++) { $disasm{$l} = ""; } } my $last_dis_filename = ''; my $last_dis_linenum = -1; my $last_touched_line = -1; # To detect gaps in disassembly for a line foreach my $e (@instructions) { # Add up counts for all address that fall inside this instruction my $c1 = 0; my $c2 = 0; for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) { $c1 += GetEntry($flat, $a); $c2 += GetEntry($cumulative, $a); } if ($html) { my $dis = sprintf(" %6s %6s \t\t%8s: %s ", HtmlPrintNumber($c1), HtmlPrintNumber($c2), UnparseAddress($offset, $e->[0]), CleanDisassembly($e->[3])); # Append the most specific source line associated with this instruction if (length($dis) < 80) { $dis .= (' ' x (80 - length($dis))) }; $dis = HtmlEscape($dis); my $f = $e->[5]; my $l = $e->[6]; if ($f ne $last_dis_filename) { $dis .= sprintf("%s:%d", HtmlEscape(CleanFileName($f)), $l); } elsif ($l ne $last_dis_linenum) { # De-emphasize the unchanged file name portion $dis .= sprintf("%s" . ":%d", HtmlEscape(CleanFileName($f)), $l); } else { # De-emphasize the entire location $dis .= sprintf("%s:%d", HtmlEscape(CleanFileName($f)), $l); } $last_dis_filename = $f; $last_dis_linenum = $l; $running_disasm .= $dis; $running_disasm .= "\n"; } $running1 += $c1; $running2 += $c2; $total1 += $c1; $total2 += $c2; my $file = $e->[1]; my $line = $e->[2]; if (($file eq $filename) && ($line >= $firstline) && ($line <= $lastline)) { # Assign all accumulated samples to this line AddEntry($samples1, $line, $running1); AddEntry($samples2, $line, $running2); $running1 = 0; $running2 = 0; if ($html) { if ($line != $last_touched_line && $disasm{$line} ne '') { $disasm{$line} .= "\n"; } $disasm{$line} .= $running_disasm; $running_disasm = ''; $last_touched_line = $line; } } } # Assign any leftover samples to $lastline AddEntry($samples1, $lastline, $running1); AddEntry($samples2, $lastline, $running2); if ($html) { if ($lastline != $last_touched_line && $disasm{$lastline} ne '') { $disasm{$lastline} .= "\n"; } $disasm{$lastline} .= $running_disasm; } if ($html) { printf $output ( "

%s

%s\n
\n" .
      "Total:%6s %6s (flat / cumulative %s)\n",
      HtmlEscape(ShortFunctionName($routine)),
      HtmlEscape(CleanFileName($filename)),
      Unparse($total1),
      Unparse($total2),
      Units());
  } else {
    printf $output (
      "ROUTINE ====================== %s in %s\n" .
      "%6s %6s Total %s (flat / cumulative)\n",
      ShortFunctionName($routine),
      CleanFileName($filename),
      Unparse($total1),
      Unparse($total2),
      Units());
  }
  if (!open(FILE, "<$filename")) {
    print STDERR "$filename: $!\n";
    return 0;
  }
  my $l = 0;
  while () {
    s/\r//g;         # turn windows-looking lines into unix-looking lines
    $l++;
    if ($l >= $firstline - 5 &&
        (($l <= $oldlastline + 5) || ($l <= $lastline))) {
      chop;
      my $text = $_;
      if ($l == $firstline) { print $output $skip_marker; }
      my $n1 = GetEntry($samples1, $l);
      my $n2 = GetEntry($samples2, $l);
      if ($html) {
        # Emit a span that has one of the following classes:
        #    livesrc -- has samples
        #    deadsrc -- has disassembly, but with no samples
        #    nop     -- has no matching disasembly
        # Also emit an optional span containing disassembly.
        my $dis = $disasm{$l};
        my $asm = "";
        if (defined($dis) && $dis ne '') {
          $asm = "" . $dis . "";
        }
        my $source_class = (($n1 + $n2 > 0) 
                            ? "livesrc" 
                            : (($asm ne "") ? "deadsrc" : "nop"));
        printf $output (
          "%5d " .
          "%6s %6s %s%s\n",
          $l, $source_class,
          HtmlPrintNumber($n1),
          HtmlPrintNumber($n2),
          HtmlEscape($text),
          $asm);
      } else {
        printf $output(
          "%6s %6s %4d: %s\n",
          UnparseAlt($n1),
          UnparseAlt($n2),
          $l,
          $text);
      }
      if ($l == $lastline)  { print $output $skip_marker; }
    };
  }
  close(FILE);
  if ($html) {
    print $output "
\n"; } return 1; } # Return the source line for the specified file/linenumber. # Returns undef if not found. sub SourceLine { my $file = shift; my $line = shift; # Look in cache if (!defined($main::source_cache{$file})) { if (100 < scalar keys(%main::source_cache)) { # Clear the cache when it gets too big $main::source_cache = (); } # Read all lines from the file if (!open(FILE, "<$file")) { print STDERR "$file: $!\n"; $main::source_cache{$file} = []; # Cache the negative result return undef; } my $lines = []; push(@{$lines}, ""); # So we can use 1-based line numbers as indices while () { push(@{$lines}, $_); } close(FILE); # Save the lines in the cache $main::source_cache{$file} = $lines; } my $lines = $main::source_cache{$file}; if (($line < 0) || ($line > $#{$lines})) { return undef; } else { return $lines->[$line]; } } # Print disassembly for one routine with interspersed source if available sub PrintDisassembledFunction { my $prog = shift; my $offset = shift; my $routine = shift; my $flat = shift; my $cumulative = shift; my $start_addr = shift; my $end_addr = shift; my $total = shift; # Disassemble all instructions my @instructions = Disassemble($prog, $offset, $start_addr, $end_addr); # Make array of counts per instruction my @flat_count = (); my @cum_count = (); my $flat_total = 0; my $cum_total = 0; foreach my $e (@instructions) { # Add up counts for all address that fall inside this instruction my $c1 = 0; my $c2 = 0; for (my $a = $e->[0]; $a lt $e->[4]; $a = AddressInc($a)) { $c1 += GetEntry($flat, $a); $c2 += GetEntry($cumulative, $a); } push(@flat_count, $c1); push(@cum_count, $c2); $flat_total += $c1; $cum_total += $c2; } # Print header with total counts printf("ROUTINE ====================== %s\n" . "%6s %6s %s (flat, cumulative) %.1f%% of total\n", ShortFunctionName($routine), Unparse($flat_total), Unparse($cum_total), Units(), ($cum_total * 100.0) / $total); # Process instructions in order my $current_file = ""; for (my $i = 0; $i <= $#instructions; ) { my $e = $instructions[$i]; # Print the new file name whenever we switch files if ($e->[1] ne $current_file) { $current_file = $e->[1]; my $fname = $current_file; $fname =~ s|^\./||; # Trim leading "./" # Shorten long file names if (length($fname) >= 58) { $fname = "..." . substr($fname, -55); } printf("-------------------- %s\n", $fname); } # TODO: Compute range of lines to print together to deal with # small reorderings. my $first_line = $e->[2]; my $last_line = $first_line; my %flat_sum = (); my %cum_sum = (); for (my $l = $first_line; $l <= $last_line; $l++) { $flat_sum{$l} = 0; $cum_sum{$l} = 0; } # Find run of instructions for this range of source lines my $first_inst = $i; while (($i <= $#instructions) && ($instructions[$i]->[2] >= $first_line) && ($instructions[$i]->[2] <= $last_line)) { $e = $instructions[$i]; $flat_sum{$e->[2]} += $flat_count[$i]; $cum_sum{$e->[2]} += $cum_count[$i]; $i++; } my $last_inst = $i - 1; # Print source lines for (my $l = $first_line; $l <= $last_line; $l++) { my $line = SourceLine($current_file, $l); if (!defined($line)) { $line = "?\n"; next; } else { $line =~ s/^\s+//; } printf("%6s %6s %5d: %s", UnparseAlt($flat_sum{$l}), UnparseAlt($cum_sum{$l}), $l, $line); } # Print disassembly for (my $x = $first_inst; $x <= $last_inst; $x++) { my $e = $instructions[$x]; printf("%6s %6s %8s: %6s\n", UnparseAlt($flat_count[$x]), UnparseAlt($cum_count[$x]), UnparseAddress($offset, $e->[0]), CleanDisassembly($e->[3])); } } } # Print DOT graph sub PrintDot { my $prog = shift; my $symbols = shift; my $raw = shift; my $flat = shift; my $cumulative = shift; my $overall_total = shift; # Get total my $local_total = TotalProfile($flat); my $nodelimit = int($main::opt_nodefraction * $local_total); my $edgelimit = int($main::opt_edgefraction * $local_total); my $nodecount = $main::opt_nodecount; # Find nodes to include my @list = (sort { abs(GetEntry($cumulative, $b)) <=> abs(GetEntry($cumulative, $a)) || $a cmp $b } keys(%{$cumulative})); my $last = $nodecount - 1; if ($last > $#list) { $last = $#list; } while (($last >= 0) && (abs(GetEntry($cumulative, $list[$last])) <= $nodelimit)) { $last--; } if ($last < 0) { print STDERR "No nodes to print\n"; return 0; } if ($nodelimit > 0 || $edgelimit > 0) { printf STDERR ("Dropping nodes with <= %s %s; edges with <= %s abs(%s)\n", Unparse($nodelimit), Units(), Unparse($edgelimit), Units()); } # Open DOT output file my $output; my $escaped_dot = ShellEscape(@DOT); my $escaped_ps2pdf = ShellEscape(@PS2PDF); if ($main::opt_gv) { my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "ps")); $output = "| $escaped_dot -Tps2 >$escaped_outfile"; } elsif ($main::opt_evince) { my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "pdf")); $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - $escaped_outfile"; } elsif ($main::opt_ps) { $output = "| $escaped_dot -Tps2"; } elsif ($main::opt_pdf) { $output = "| $escaped_dot -Tps2 | $escaped_ps2pdf - -"; } elsif ($main::opt_web || $main::opt_svg) { # We need to post-process the SVG, so write to a temporary file always. my $escaped_outfile = ShellEscape(TempName($main::next_tmpfile, "svg")); $output = "| $escaped_dot -Tsvg >$escaped_outfile"; } elsif ($main::opt_gif) { $output = "| $escaped_dot -Tgif"; } else { $output = ">&STDOUT"; } open(DOT, $output) || error("$output: $!\n"); # Title printf DOT ("digraph \"%s; %s %s\" {\n", $prog, Unparse($overall_total), Units()); if ($main::opt_pdf) { # The output is more printable if we set the page size for dot. printf DOT ("size=\"8,11\"\n"); } printf DOT ("node [width=0.375,height=0.25];\n"); # Print legend printf DOT ("Legend [shape=box,fontsize=24,shape=plaintext," . "label=\"%s\\l%s\\l%s\\l%s\\l%s\\l\"];\n", $prog, sprintf("Total %s: %s", Units(), Unparse($overall_total)), sprintf("Focusing on: %s", Unparse($local_total)), sprintf("Dropped nodes with <= %s abs(%s)", Unparse($nodelimit), Units()), sprintf("Dropped edges with <= %s %s", Unparse($edgelimit), Units()) ); # Print nodes my %node = (); my $nextnode = 1; foreach my $a (@list[0..$last]) { # Pick font size my $f = GetEntry($flat, $a); my $c = GetEntry($cumulative, $a); my $fs = 8; if ($local_total > 0) { $fs = 8 + (50.0 * sqrt(abs($f * 1.0 / $local_total))); } $node{$a} = $nextnode++; my $sym = $a; $sym =~ s/\s+/\\n/g; $sym =~ s/::/\\n/g; # Extra cumulative info to print for non-leaves my $extra = ""; if ($f != $c) { $extra = sprintf("\\rof %s (%s)", Unparse($c), Percent($c, $local_total)); } my $style = ""; if ($main::opt_heapcheck) { if ($f > 0) { # make leak-causing nodes more visible (add a background) $style = ",style=filled,fillcolor=gray" } elsif ($f < 0) { # make anti-leak-causing nodes (which almost never occur) # stand out as well (triple border) $style = ",peripheries=3" } } printf DOT ("N%d [label=\"%s\\n%s (%s)%s\\r" . "\",shape=box,fontsize=%.1f%s];\n", $node{$a}, $sym, Unparse($f), Percent($f, $local_total), $extra, $fs, $style, ); } # Get edges and counts per edge my %edge = (); my $n; my $fullname_to_shortname_map = {}; FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map); foreach my $k (keys(%{$raw})) { # TODO: omit low %age edges $n = $raw->{$k}; my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k); for (my $i = 1; $i <= $#translated; $i++) { my $src = $translated[$i]; my $dst = $translated[$i-1]; #next if ($src eq $dst); # Avoid self-edges? if (exists($node{$src}) && exists($node{$dst})) { my $edge_label = "$src\001$dst"; if (!exists($edge{$edge_label})) { $edge{$edge_label} = 0; } $edge{$edge_label} += $n; } } } # Print edges (process in order of decreasing counts) my %indegree = (); # Number of incoming edges added per node so far my %outdegree = (); # Number of outgoing edges added per node so far foreach my $e (sort { $edge{$b} <=> $edge{$a} } keys(%edge)) { my @x = split(/\001/, $e); $n = $edge{$e}; # Initialize degree of kept incoming and outgoing edges if necessary my $src = $x[0]; my $dst = $x[1]; if (!exists($outdegree{$src})) { $outdegree{$src} = 0; } if (!exists($indegree{$dst})) { $indegree{$dst} = 0; } my $keep; if ($indegree{$dst} == 0) { # Keep edge if needed for reachability $keep = 1; } elsif (abs($n) <= $edgelimit) { # Drop if we are below --edgefraction $keep = 0; } elsif ($outdegree{$src} >= $main::opt_maxdegree || $indegree{$dst} >= $main::opt_maxdegree) { # Keep limited number of in/out edges per node $keep = 0; } else { $keep = 1; } if ($keep) { $outdegree{$src}++; $indegree{$dst}++; # Compute line width based on edge count my $fraction = abs($local_total ? (3 * ($n / $local_total)) : 0); if ($fraction > 1) { $fraction = 1; } my $w = $fraction * 2; if ($w < 1 && ($main::opt_web || $main::opt_svg)) { # SVG output treats line widths < 1 poorly. $w = 1; } # Dot sometimes segfaults if given edge weights that are too large, so # we cap the weights at a large value my $edgeweight = abs($n) ** 0.7; if ($edgeweight > 100000) { $edgeweight = 100000; } $edgeweight = int($edgeweight); my $style = sprintf("setlinewidth(%f)", $w); if ($x[1] =~ m/\(inline\)/) { $style .= ",dashed"; } # Use a slightly squashed function of the edge count as the weight printf DOT ("N%s -> N%s [label=%s, weight=%d, style=\"%s\"];\n", $node{$x[0]}, $node{$x[1]}, Unparse($n), $edgeweight, $style); } } print DOT ("}\n"); close(DOT); if ($main::opt_web || $main::opt_svg) { # Rewrite SVG to be more usable inside web browser. RewriteSvg(TempName($main::next_tmpfile, "svg")); } return 1; } sub RewriteSvg { my $svgfile = shift; open(SVG, $svgfile) || die "open temp svg: $!"; my @svg = ; close(SVG); unlink $svgfile; my $svg = join('', @svg); # Dot's SVG output is # # # # ... # # # # Change it to # # # $svg_javascript # # # ... # # # # Fix width, height; drop viewBox. $svg =~ s/(?s) above first my $svg_javascript = SvgJavascript(); my $viewport = "\n"; $svg =~ s/ above . $svg =~ s/(.*)(<\/svg>)/$1<\/g>$2/; $svg =~ s/$svgfile") || die "open $svgfile: $!"; print SVG $svg; close(SVG); } } sub SvgJavascript { return <<'EOF'; EOF } # Provides a map from fullname to shortname for cases where the # shortname is ambiguous. The symlist has both the fullname and # shortname for all symbols, which is usually fine, but sometimes -- # such as overloaded functions -- two different fullnames can map to # the same shortname. In that case, we use the address of the # function to disambiguate the two. This function fills in a map that # maps fullnames to modified shortnames in such cases. If a fullname # is not present in the map, the 'normal' shortname provided by the # symlist is the appropriate one to use. sub FillFullnameToShortnameMap { my $symbols = shift; my $fullname_to_shortname_map = shift; my $shortnames_seen_once = {}; my $shortnames_seen_more_than_once = {}; foreach my $symlist (values(%{$symbols})) { # TODO(csilvers): deal with inlined symbols too. my $shortname = $symlist->[0]; my $fullname = $symlist->[2]; if ($fullname !~ /<[0-9a-fA-F]+>$/) { # fullname doesn't end in an address next; # the only collisions we care about are when addresses differ } if (defined($shortnames_seen_once->{$shortname}) && $shortnames_seen_once->{$shortname} ne $fullname) { $shortnames_seen_more_than_once->{$shortname} = 1; } else { $shortnames_seen_once->{$shortname} = $fullname; } } foreach my $symlist (values(%{$symbols})) { my $shortname = $symlist->[0]; my $fullname = $symlist->[2]; # TODO(csilvers): take in a list of addresses we care about, and only # store in the map if $symlist->[1] is in that list. Saves space. next if defined($fullname_to_shortname_map->{$fullname}); if (defined($shortnames_seen_more_than_once->{$shortname})) { if ($fullname =~ /<0*([^>]*)>$/) { # fullname has address at end of it $fullname_to_shortname_map->{$fullname} = "$shortname\@$1"; } } } } # Return a small number that identifies the argument. # Multiple calls with the same argument will return the same number. # Calls with different arguments will return different numbers. sub ShortIdFor { my $key = shift; my $id = $main::uniqueid{$key}; if (!defined($id)) { $id = keys(%main::uniqueid) + 1; $main::uniqueid{$key} = $id; } return $id; } # Translate a stack of addresses into a stack of symbols sub TranslateStack { my $symbols = shift; my $fullname_to_shortname_map = shift; my $k = shift; my @addrs = split(/\n/, $k); my @result = (); for (my $i = 0; $i <= $#addrs; $i++) { my $a = $addrs[$i]; # Skip large addresses since they sometimes show up as fake entries on RH9 if (length($a) > 8 && $a gt "7fffffffffffffff") { next; } if ($main::opt_disasm || $main::opt_list) { # We want just the address for the key push(@result, $a); next; } my $symlist = $symbols->{$a}; if (!defined($symlist)) { $symlist = [$a, "", $a]; } # We can have a sequence of symbols for a particular entry # (more than one symbol in the case of inlining). Callers # come before callees in symlist, so walk backwards since # the translated stack should contain callees before callers. for (my $j = $#{$symlist}; $j >= 2; $j -= 3) { my $func = $symlist->[$j-2]; my $fileline = $symlist->[$j-1]; my $fullfunc = $symlist->[$j]; if (defined($fullname_to_shortname_map->{$fullfunc})) { $func = $fullname_to_shortname_map->{$fullfunc}; } if ($j > 2) { $func = "$func (inline)"; } # Do not merge nodes corresponding to Callback::Run since that # causes confusing cycles in dot display. Instead, we synthesize # a unique name for this frame per caller. if ($func =~ m/Callback.*::Run$/) { my $caller = ($i > 0) ? $addrs[$i-1] : 0; $func = "Run#" . ShortIdFor($caller); } if ($main::opt_addresses) { push(@result, "$a $func $fileline"); } elsif ($main::opt_lines) { if ($func eq '??' && $fileline eq '??:0') { push(@result, "$a"); } elsif (!$main::opt_show_addresses) { push(@result, "$func $fileline"); } else { push(@result, "$func $fileline ($a)"); } } elsif ($main::opt_functions) { if ($func eq '??') { push(@result, "$a"); } elsif (!$main::opt_show_addresses) { push(@result, $func); } else { push(@result, "$func ($a)"); } } elsif ($main::opt_files) { if ($fileline eq '??:0' || $fileline eq '') { push(@result, "$a"); } else { my $f = $fileline; $f =~ s/:\d+$//; push(@result, $f); } } else { push(@result, $a); last; # Do not print inlined info } } } # print join(",", @addrs), " => ", join(",", @result), "\n"; return @result; } # Generate percent string for a number and a total sub Percent { my $num = shift; my $tot = shift; if ($tot != 0) { return sprintf("%.1f%%", $num * 100.0 / $tot); } else { return ($num == 0) ? "nan" : (($num > 0) ? "+inf" : "-inf"); } } # Generate pretty-printed form of number sub Unparse { my $num = shift; if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') { if ($main::opt_inuse_objects || $main::opt_alloc_objects) { return sprintf("%d", $num); } else { if ($main::opt_show_bytes) { return sprintf("%d", $num); } else { return sprintf("%.1f", $num / 1048576.0); } } } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) { return sprintf("%.3f", $num / 1e9); # Convert nanoseconds to seconds } else { return sprintf("%d", $num); } } # Alternate pretty-printed form: 0 maps to "." sub UnparseAlt { my $num = shift; if ($num == 0) { return "."; } else { return Unparse($num); } } # Alternate pretty-printed form: 0 maps to "" sub HtmlPrintNumber { my $num = shift; if ($num == 0) { return ""; } else { return Unparse($num); } } # Return output units sub Units { if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') { if ($main::opt_inuse_objects || $main::opt_alloc_objects) { return "objects"; } else { if ($main::opt_show_bytes) { return "B"; } else { return "MB"; } } } elsif ($main::profile_type eq 'contention' && !$main::opt_contentions) { return "seconds"; } else { return "samples"; } } ##### Profile manipulation code ##### # Generate flattened profile: # If count is charged to stack [a,b,c,d], in generated profile, # it will be charged to [a] sub FlatProfile { my $profile = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); if ($#addrs >= 0) { AddEntry($result, $addrs[0], $count); } } return $result; } # Generate cumulative profile: # If count is charged to stack [a,b,c,d], in generated profile, # it will be charged to [a], [b], [c], [d] sub CumulativeProfile { my $profile = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); foreach my $a (@addrs) { AddEntry($result, $a, $count); } } return $result; } # If the second-youngest PC on the stack is always the same, returns # that pc. Otherwise, returns undef. sub IsSecondPcAlwaysTheSame { my $profile = shift; my $second_pc = undef; foreach my $k (keys(%{$profile})) { my @addrs = split(/\n/, $k); if ($#addrs < 1) { return undef; } if (not defined $second_pc) { $second_pc = $addrs[1]; } else { if ($second_pc ne $addrs[1]) { return undef; } } } return $second_pc; } sub ExtractSymbolLocation { my $symbols = shift; my $address = shift; # 'addr2line' outputs "??:0" for unknown locations; we do the # same to be consistent. my $location = "??:0:unknown"; if (exists $symbols->{$address}) { my $file = $symbols->{$address}->[1]; if ($file eq "?") { $file = "??:0" } $location = $file . ":" . $symbols->{$address}->[0]; } return $location; } # Extracts a graph of calls. sub ExtractCalls { my $symbols = shift; my $profile = shift; my $calls = {}; while( my ($stack_trace, $count) = each %$profile ) { my @address = split(/\n/, $stack_trace); my $destination = ExtractSymbolLocation($symbols, $address[0]); AddEntry($calls, $destination, $count); for (my $i = 1; $i <= $#address; $i++) { my $source = ExtractSymbolLocation($symbols, $address[$i]); my $call = "$source -> $destination"; AddEntry($calls, $call, $count); $destination = $source; } } return $calls; } sub PrintStacksForText { my $symbols = shift; my $profile = shift; while (my ($stack_trace, $count) = each %$profile) { my @address = split(/\n/, $stack_trace); for (my $i = 0; $i <= $#address; $i++) { $address[$i] = sprintf("(%s) %s", $address[$i], ExtractSymbolLocation($symbols, $address[$i])); } printf("%-8d %s\n\n", $count, join("\n ", @address)); } } sub RemoveUninterestingFrames { my $symbols = shift; my $profile = shift; # List of function names to skip my %skip = (); my $skip_regexp = 'NOMATCH'; if ($main::profile_type eq 'heap' || $main::profile_type eq 'growth') { foreach my $name ('calloc', 'cfree', 'malloc', 'free', 'memalign', 'posix_memalign', 'pvalloc', 'valloc', 'realloc', 'tc_calloc', 'tc_cfree', 'tc_malloc', 'tc_free', 'tc_memalign', 'tc_posix_memalign', 'tc_pvalloc', 'tc_valloc', 'tc_realloc', 'tc_new', 'tc_delete', 'tc_newarray', 'tc_deletearray', 'tc_new_nothrow', 'tc_newarray_nothrow', 'do_malloc', '::do_malloc', # new name -- got moved to an unnamed ns '::do_malloc_or_cpp_alloc', 'DoSampledAllocation', 'simple_alloc::allocate', '__malloc_alloc_template::allocate', '__builtin_delete', '__builtin_new', '__builtin_vec_delete', '__builtin_vec_new', 'operator new', 'operator new[]', # The entry to our memory-allocation routines on OS X 'malloc_zone_malloc', 'malloc_zone_calloc', 'malloc_zone_valloc', 'malloc_zone_realloc', 'malloc_zone_memalign', 'malloc_zone_free', # These mark the beginning/end of our custom sections '__start_google_malloc', '__stop_google_malloc', '__start_malloc_hook', '__stop_malloc_hook') { $skip{$name} = 1; $skip{"_" . $name} = 1; # Mach (OS X) adds a _ prefix to everything } # TODO: Remove TCMalloc once everything has been # moved into the tcmalloc:: namespace and we have flushed # old code out of the system. $skip_regexp = "TCMalloc|^tcmalloc::"; } elsif ($main::profile_type eq 'contention') { foreach my $vname ('base::RecordLockProfileData', 'base::SubmitMutexProfileData', 'base::SubmitSpinLockProfileData', 'Mutex::Unlock', 'Mutex::UnlockSlow', 'Mutex::ReaderUnlock', 'MutexLock::~MutexLock', 'SpinLock::Unlock', 'SpinLock::SlowUnlock', 'SpinLockHolder::~SpinLockHolder') { $skip{$vname} = 1; } } elsif ($main::profile_type eq 'cpu' && !$main::opt_no_auto_signal_frames) { # Drop signal handlers used for CPU profile collection # TODO(dpeng): this should not be necessary; it's taken # care of by the general 2nd-pc mechanism below. foreach my $name ('ProfileData::Add', # historical 'ProfileData::prof_handler', # historical 'CpuProfiler::prof_handler', '__FRAME_END__', '__pthread_sighandler', '__restore') { $skip{$name} = 1; } } else { # Nothing skipped for unknown types } if ($main::profile_type eq 'cpu') { # If all the second-youngest program counters are the same, # this STRONGLY suggests that it is an artifact of measurement, # i.e., stack frames pushed by the CPU profiler signal handler. # Hence, we delete them. # (The topmost PC is read from the signal structure, not from # the stack, so it does not get involved.) while (my $second_pc = IsSecondPcAlwaysTheSame($profile)) { my $result = {}; my $func = ''; if (exists($symbols->{$second_pc})) { $second_pc = $symbols->{$second_pc}->[0]; } if ($main::opt_no_auto_signal_frames) { print STDERR "All second stack frames are same: `$second_pc'.\nMight be stack trace capturing bug.\n"; last; } print STDERR "Removing $second_pc from all stack traces.\n"; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); my $topaddr = POSIX::strtoul($addrs[0], 16); splice @addrs, 1, 1; if ($#addrs > 1) { my $subtopaddr = POSIX::strtoul($addrs[1], 16); if ($subtopaddr + 1 == $topaddr) { splice @addrs, 1, 1; } } my $reduced_path = join("\n", @addrs); AddEntry($result, $reduced_path, $count); } $profile = $result; } } my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); my @path = (); foreach my $a (@addrs) { if (exists($symbols->{$a})) { my $func = $symbols->{$a}->[0]; if ($skip{$func} || ($func =~ m/$skip_regexp/)) { next; } } push(@path, $a); } my $reduced_path = join("\n", @path); AddEntry($result, $reduced_path, $count); } return $result; } # Reduce profile to granularity given by user sub ReduceProfile { my $symbols = shift; my $profile = shift; my $result = {}; my $fullname_to_shortname_map = {}; FillFullnameToShortnameMap($symbols, $fullname_to_shortname_map); foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @translated = TranslateStack($symbols, $fullname_to_shortname_map, $k); my @path = (); my %seen = (); $seen{''} = 1; # So that empty keys are skipped foreach my $e (@translated) { # To avoid double-counting due to recursion, skip a stack-trace # entry if it has already been seen if (!$seen{$e}) { $seen{$e} = 1; push(@path, $e); } } my $reduced_path = join("\n", @path); AddEntry($result, $reduced_path, $count); } return $result; } # Does the specified symbol array match the regexp? sub SymbolMatches { my $sym = shift; my $re = shift; if (defined($sym)) { for (my $i = 0; $i < $#{$sym}; $i += 3) { if ($sym->[$i] =~ m/$re/ || $sym->[$i+1] =~ m/$re/) { return 1; } } } return 0; } # Focus only on paths involving specified regexps sub FocusProfile { my $symbols = shift; my $profile = shift; my $focus = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); foreach my $a (@addrs) { # Reply if it matches either the address/shortname/fileline if (($a =~ m/$focus/) || SymbolMatches($symbols->{$a}, $focus)) { AddEntry($result, $k, $count); last; } } } return $result; } # Focus only on paths not involving specified regexps sub IgnoreProfile { my $symbols = shift; my $profile = shift; my $ignore = shift; my $result = {}; foreach my $k (keys(%{$profile})) { my $count = $profile->{$k}; my @addrs = split(/\n/, $k); my $matched = 0; foreach my $a (@addrs) { # Reply if it matches either the address/shortname/fileline if (($a =~ m/$ignore/) || SymbolMatches($symbols->{$a}, $ignore)) { $matched = 1; last; } } if (!$matched) { AddEntry($result, $k, $count); } } return $result; } # Get total count in profile sub TotalProfile { my $profile = shift; my $result = 0; foreach my $k (keys(%{$profile})) { $result += $profile->{$k}; } return $result; } # Add A to B sub AddProfile { my $A = shift; my $B = shift; my $R = {}; # add all keys in A foreach my $k (keys(%{$A})) { my $v = $A->{$k}; AddEntry($R, $k, $v); } # add all keys in B foreach my $k (keys(%{$B})) { my $v = $B->{$k}; AddEntry($R, $k, $v); } return $R; } # Merges symbol maps sub MergeSymbols { my $A = shift; my $B = shift; my $R = {}; foreach my $k (keys(%{$A})) { $R->{$k} = $A->{$k}; } if (defined($B)) { foreach my $k (keys(%{$B})) { $R->{$k} = $B->{$k}; } } return $R; } # Add A to B sub AddPcs { my $A = shift; my $B = shift; my $R = {}; # add all keys in A foreach my $k (keys(%{$A})) { $R->{$k} = 1 } # add all keys in B foreach my $k (keys(%{$B})) { $R->{$k} = 1 } return $R; } # Subtract B from A sub SubtractProfile { my $A = shift; my $B = shift; my $R = {}; foreach my $k (keys(%{$A})) { my $v = $A->{$k} - GetEntry($B, $k); if ($v < 0 && $main::opt_drop_negative) { $v = 0; } AddEntry($R, $k, $v); } if (!$main::opt_drop_negative) { # Take care of when subtracted profile has more entries foreach my $k (keys(%{$B})) { if (!exists($A->{$k})) { AddEntry($R, $k, 0 - $B->{$k}); } } } return $R; } # Get entry from profile; zero if not present sub GetEntry { my $profile = shift; my $k = shift; if (exists($profile->{$k})) { return $profile->{$k}; } else { return 0; } } # Add entry to specified profile sub AddEntry { my $profile = shift; my $k = shift; my $n = shift; if (!exists($profile->{$k})) { $profile->{$k} = 0; } $profile->{$k} += $n; } # Add a stack of entries to specified profile, and add them to the $pcs # list. sub AddEntries { my $profile = shift; my $pcs = shift; my $stack = shift; my $count = shift; my @k = (); foreach my $e (split(/\s+/, $stack)) { my $pc = HexExtend($e); $pcs->{$pc} = 1; push @k, $pc; } AddEntry($profile, (join "\n", @k), $count); } ##### Code to profile a server dynamically ##### sub CheckSymbolPage { my $url = SymbolPageURL(); my $command = ShellEscape(@URL_FETCHER, $url); open(SYMBOL, "$command |") or error($command); my $line = ; $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines close(SYMBOL); unless (defined($line)) { error("$url doesn't exist\n"); } if ($line =~ /^num_symbols:\s+(\d+)$/) { if ($1 == 0) { error("Stripped binary. No symbols available.\n"); } } else { error("Failed to get the number of symbols from $url\n"); } } sub IsProfileURL { my $profile_name = shift; if (-f $profile_name) { printf STDERR "Using local file $profile_name.\n"; return 0; } return 1; } sub ParseProfileURL { my $profile_name = shift; if (!defined($profile_name) || $profile_name eq "") { return (); } # Split profile URL - matches all non-empty strings, so no test. $profile_name =~ m,^(https?://)?([^/]+)(.*?)(/|$PROFILES)?$,; my $proto = $1 || "http://"; my $hostport = $2; my $prefix = $3; my $profile = $4 || "/"; my $host = $hostport; $host =~ s/:.*//; my $baseurl = "$proto$hostport$prefix"; return ($host, $baseurl, $profile); } # We fetch symbols from the first profile argument. sub SymbolPageURL { my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]); return "$baseURL$SYMBOL_PAGE"; } sub FetchProgramName() { my ($host, $baseURL, $path) = ParseProfileURL($main::pfile_args[0]); my $url = "$baseURL$PROGRAM_NAME_PAGE"; my $command_line = ShellEscape(@URL_FETCHER, $url); open(CMDLINE, "$command_line |") or error($command_line); my $cmdline = ; $cmdline =~ s/\r//g; # turn windows-looking lines into unix-looking lines close(CMDLINE); error("Failed to get program name from $url\n") unless defined($cmdline); $cmdline =~ s/\x00.+//; # Remove argv[1] and latters. $cmdline =~ s!\n!!g; # Remove LFs. return $cmdline; } # Gee, curl's -L (--location) option isn't reliable at least # with its 7.12.3 version. Curl will forget to post data if # there is a redirection. This function is a workaround for # curl. Redirection happens on borg hosts. sub ResolveRedirectionForCurl { my $url = shift; my $command_line = ShellEscape(@URL_FETCHER, "--head", $url); open(CMDLINE, "$command_line |") or error($command_line); while () { s/\r//g; # turn windows-looking lines into unix-looking lines if (/^Location: (.*)/) { $url = $1; } } close(CMDLINE); return $url; } # Add a timeout flat to URL_FETCHER. Returns a new list. sub AddFetchTimeout { my $timeout = shift; my @fetcher = shift; if (defined($timeout)) { if (join(" ", @fetcher) =~ m/\bcurl -s/) { push(@fetcher, "--max-time", sprintf("%d", $timeout)); } elsif (join(" ", @fetcher) =~ m/\brpcget\b/) { push(@fetcher, sprintf("--deadline=%d", $timeout)); } } return @fetcher; } # Reads a symbol map from the file handle name given as $1, returning # the resulting symbol map. Also processes variables relating to symbols. # Currently, the only variable processed is 'binary=' which updates # $main::prog to have the correct program name. sub ReadSymbols { my $in = shift; my $map = {}; while (<$in>) { s/\r//g; # turn windows-looking lines into unix-looking lines # Removes all the leading zeroes from the symbols, see comment below. if (m/^0x0*([0-9a-f]+)\s+(.+)/) { $map->{$1} = $2; } elsif (m/^---/) { last; } elsif (m/^([a-z][^=]*)=(.*)$/ ) { my ($variable, $value) = ($1, $2); for ($variable, $value) { s/^\s+//; s/\s+$//; } if ($variable eq "binary") { if ($main::prog ne $UNKNOWN_BINARY && $main::prog ne $value) { printf STDERR ("Warning: Mismatched binary name '%s', using '%s'.\n", $main::prog, $value); } $main::prog = $value; } else { printf STDERR ("Ignoring unknown variable in symbols list: " . "'%s' = '%s'\n", $variable, $value); } } } return $map; } # Fetches and processes symbols to prepare them for use in the profile output # code. If the optional 'symbol_map' arg is not given, fetches symbols from # $SYMBOL_PAGE for all PC values found in profile. Otherwise, the raw symbols # are assumed to have already been fetched into 'symbol_map' and are simply # extracted and processed. sub FetchSymbols { my $pcset = shift; my $symbol_map = shift; my %seen = (); my @pcs = grep { !$seen{$_}++ } keys(%$pcset); # uniq if (!defined($symbol_map)) { my $post_data = join("+", sort((map {"0x" . "$_"} @pcs))); open(POSTFILE, ">$main::tmpfile_sym"); print POSTFILE $post_data; close(POSTFILE); my $url = SymbolPageURL(); my $command_line; if (join(" ", @URL_FETCHER) =~ m/\bcurl -s/) { $url = ResolveRedirectionForCurl($url); $command_line = ShellEscape(@URL_FETCHER, "-d", "\@$main::tmpfile_sym", $url); } else { $command_line = (ShellEscape(@URL_FETCHER, "--post", $url) . " < " . ShellEscape($main::tmpfile_sym)); } # We use c++filt in case $SYMBOL_PAGE gives us mangled symbols. my $escaped_cppfilt = ShellEscape($obj_tool_map{"c++filt"}); open(SYMBOL, "$command_line | $escaped_cppfilt |") or error($command_line); $symbol_map = ReadSymbols(*SYMBOL{IO}); close(SYMBOL); } my $symbols = {}; foreach my $pc (@pcs) { my $fullname; # For 64 bits binaries, symbols are extracted with 8 leading zeroes. # Then /symbol reads the long symbols in as uint64, and outputs # the result with a "0x%08llx" format which get rid of the zeroes. # By removing all the leading zeroes in both $pc and the symbols from # /symbol, the symbols match and are retrievable from the map. my $shortpc = $pc; $shortpc =~ s/^0*//; # Each line may have a list of names, which includes the function # and also other functions it has inlined. They are separated (in # PrintSymbolizedProfile), by --, which is illegal in function names. my $fullnames; if (defined($symbol_map->{$shortpc})) { $fullnames = $symbol_map->{$shortpc}; } else { $fullnames = "0x" . $pc; # Just use addresses } my $sym = []; $symbols->{$pc} = $sym; foreach my $fullname (split("--", $fullnames)) { my $name = ShortFunctionName($fullname); push(@{$sym}, $name, "?", $fullname); } } return $symbols; } sub BaseName { my $file_name = shift; $file_name =~ s!^.*/!!; # Remove directory name return $file_name; } sub MakeProfileBaseName { my ($binary_name, $profile_name) = @_; my ($host, $baseURL, $path) = ParseProfileURL($profile_name); my $binary_shortname = BaseName($binary_name); return sprintf("%s.%s.%s", $binary_shortname, $main::op_time, $host); } sub FetchDynamicProfile { my $binary_name = shift; my $profile_name = shift; my $fetch_name_only = shift; my $encourage_patience = shift; if (!IsProfileURL($profile_name)) { return $profile_name; } else { my ($host, $baseURL, $path) = ParseProfileURL($profile_name); if ($path eq "" || $path eq "/") { # Missing type specifier defaults to cpu-profile $path = $PROFILE_PAGE; } my $profile_file = MakeProfileBaseName($binary_name, $profile_name); my $url = "$baseURL$path"; my $fetch_timeout = undef; if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE/) { if ($path =~ m/[?]/) { $url .= "&"; } else { $url .= "?"; } $url .= sprintf("seconds=%d", $main::opt_seconds); $fetch_timeout = $main::opt_seconds * 1.01 + 60; } else { # For non-CPU profiles, we add a type-extension to # the target profile file name. my $suffix = $path; $suffix =~ s,/,.,g; $profile_file .= $suffix; } my $profile_dir = $ENV{"PPROF_TMPDIR"} || ($ENV{HOME} . "/pprof"); if (! -d $profile_dir) { mkdir($profile_dir) || die("Unable to create profile directory $profile_dir: $!\n"); } my $tmp_profile = "$profile_dir/.tmp.$profile_file"; my $real_profile = "$profile_dir/$profile_file"; if ($fetch_name_only > 0) { return $real_profile; } my @fetcher = AddFetchTimeout($fetch_timeout, @URL_FETCHER); my $cmd = ShellEscape(@fetcher, $url) . " > " . ShellEscape($tmp_profile); if ($path =~ m/$PROFILE_PAGE|$PMUPROFILE_PAGE|$CENSUSPROFILE_PAGE/){ print STDERR "Gathering CPU profile from $url for $main::opt_seconds seconds to\n ${real_profile}\n"; if ($encourage_patience) { print STDERR "Be patient...\n"; } } else { print STDERR "Fetching $path profile from $url to\n ${real_profile}\n"; } (system($cmd) == 0) || error("Failed to get profile: $cmd: $!\n"); (system("mv", $tmp_profile, $real_profile) == 0) || error("Unable to rename profile\n"); print STDERR "Wrote profile to $real_profile\n"; $main::collected_profile = $real_profile; return $main::collected_profile; } } # Collect profiles in parallel sub FetchDynamicProfiles { my $items = scalar(@main::pfile_args); my $levels = log($items) / log(2); if ($items == 1) { $main::profile_files[0] = FetchDynamicProfile($main::prog, $main::pfile_args[0], 0, 1); } else { # math rounding issues if ((2 ** $levels) < $items) { $levels++; } my $count = scalar(@main::pfile_args); for (my $i = 0; $i < $count; $i++) { $main::profile_files[$i] = FetchDynamicProfile($main::prog, $main::pfile_args[$i], 1, 0); } print STDERR "Fetching $count profiles, Be patient...\n"; FetchDynamicProfilesRecurse($levels, 0, 0); $main::collected_profile = join(" \\\n ", @main::profile_files); } } # Recursively fork a process to get enough processes # collecting profiles sub FetchDynamicProfilesRecurse { my $maxlevel = shift; my $level = shift; my $position = shift; if (my $pid = fork()) { $position = 0 | ($position << 1); TryCollectProfile($maxlevel, $level, $position); wait; } else { $position = 1 | ($position << 1); TryCollectProfile($maxlevel, $level, $position); cleanup(); exit(0); } } # Collect a single profile sub TryCollectProfile { my $maxlevel = shift; my $level = shift; my $position = shift; if ($level >= ($maxlevel - 1)) { if ($position < scalar(@main::pfile_args)) { FetchDynamicProfile($main::prog, $main::pfile_args[$position], 0, 0); } } else { FetchDynamicProfilesRecurse($maxlevel, $level+1, $position); } } ##### Parsing code ##### # Provide a small streaming-read module to handle very large # cpu-profile files. Stream in chunks along a sliding window. # Provides an interface to get one 'slot', correctly handling # endian-ness differences. A slot is one 32-bit or 64-bit word # (depending on the input profile). We tell endianness and bit-size # for the profile by looking at the first 8 bytes: in cpu profiles, # the second slot is always 3 (we'll accept anything that's not 0). BEGIN { package CpuProfileStream; sub new { my ($class, $file, $fname) = @_; my $self = { file => $file, base => 0, stride => 512 * 1024, # must be a multiple of bitsize/8 slots => [], unpack_code => "", # N for big-endian, V for little perl_is_64bit => 1, # matters if profile is 64-bit }; bless $self, $class; # Let unittests adjust the stride if ($main::opt_test_stride > 0) { $self->{stride} = $main::opt_test_stride; } # Read the first two slots to figure out bitsize and endianness. my $slots = $self->{slots}; my $str; read($self->{file}, $str, 8); # Set the global $address_length based on what we see here. # 8 is 32-bit (8 hexadecimal chars); 16 is 64-bit (16 hexadecimal chars). $address_length = ($str eq (chr(0)x8)) ? 16 : 8; if ($address_length == 8) { if (substr($str, 6, 2) eq chr(0)x2) { $self->{unpack_code} = 'V'; # Little-endian. } elsif (substr($str, 4, 2) eq chr(0)x2) { $self->{unpack_code} = 'N'; # Big-endian } else { ::error("$fname: header size >= 2**16\n"); } @$slots = unpack($self->{unpack_code} . "*", $str); } else { # If we're a 64-bit profile, check if we're a 64-bit-capable # perl. Otherwise, each slot will be represented as a float # instead of an int64, losing precision and making all the # 64-bit addresses wrong. We won't complain yet, but will # later if we ever see a value that doesn't fit in 32 bits. my $has_q = 0; eval { $has_q = pack("Q", "1") ? 1 : 1; }; if (!$has_q) { $self->{perl_is_64bit} = 0; } read($self->{file}, $str, 8); if (substr($str, 4, 4) eq chr(0)x4) { # We'd love to use 'Q', but it's a) not universal, b) not endian-proof. $self->{unpack_code} = 'V'; # Little-endian. } elsif (substr($str, 0, 4) eq chr(0)x4) { $self->{unpack_code} = 'N'; # Big-endian } else { ::error("$fname: header size >= 2**32\n"); } my @pair = unpack($self->{unpack_code} . "*", $str); # Since we know one of the pair is 0, it's fine to just add them. @$slots = (0, $pair[0] + $pair[1]); } return $self; } # Load more data when we access slots->get(X) which is not yet in memory. sub overflow { my ($self) = @_; my $slots = $self->{slots}; $self->{base} += $#$slots + 1; # skip over data we're replacing my $str; read($self->{file}, $str, $self->{stride}); if ($address_length == 8) { # the 32-bit case # This is the easy case: unpack provides 32-bit unpacking primitives. @$slots = unpack($self->{unpack_code} . "*", $str); } else { # We need to unpack 32 bits at a time and combine. my @b32_values = unpack($self->{unpack_code} . "*", $str); my @b64_values = (); for (my $i = 0; $i < $#b32_values; $i += 2) { # TODO(csilvers): if this is a 32-bit perl, the math below # could end up in a too-large int, which perl will promote # to a double, losing necessary precision. Deal with that. # Right now, we just die. my ($lo, $hi) = ($b32_values[$i], $b32_values[$i+1]); if ($self->{unpack_code} eq 'N') { # big-endian ($lo, $hi) = ($hi, $lo); } my $value = $lo + $hi * (2**32); if (!$self->{perl_is_64bit} && # check value is exactly represented (($value % (2**32)) != $lo || int($value / (2**32)) != $hi)) { ::error("Need a 64-bit perl to process this 64-bit profile.\n"); } push(@b64_values, $value); } @$slots = @b64_values; } } # Access the i-th long in the file (logically), or -1 at EOF. sub get { my ($self, $idx) = @_; my $slots = $self->{slots}; while ($#$slots >= 0) { if ($idx < $self->{base}) { # The only time we expect a reference to $slots[$i - something] # after referencing $slots[$i] is reading the very first header. # Since $stride > |header|, that shouldn't cause any lookback # errors. And everything after the header is sequential. print STDERR "Unexpected look-back reading CPU profile"; return -1; # shrug, don't know what better to return } elsif ($idx > $self->{base} + $#$slots) { $self->overflow(); } else { return $slots->[$idx - $self->{base}]; } } # If we get here, $slots is [], which means we've reached EOF return -1; # unique since slots is supposed to hold unsigned numbers } } # Reads the top, 'header' section of a profile, and returns the last # line of the header, commonly called a 'header line'. The header # section of a profile consists of zero or more 'command' lines that # are instructions to pprof, which pprof executes when reading the # header. All 'command' lines start with a %. After the command # lines is the 'header line', which is a profile-specific line that # indicates what type of profile it is, and perhaps other global # information about the profile. For instance, here's a header line # for a heap profile: # heap profile: 53: 38236 [ 5525: 1284029] @ heapprofile # For historical reasons, the CPU profile does not contain a text- # readable header line. If the profile looks like a CPU profile, # this function returns "". If no header line could be found, this # function returns undef. # # The following commands are recognized: # %warn -- emit the rest of this line to stderr, prefixed by 'WARNING:' # # The input file should be in binmode. sub ReadProfileHeader { local *PROFILE = shift; my $firstchar = ""; my $line = ""; read(PROFILE, $firstchar, 1); seek(PROFILE, -1, 1); # unread the firstchar if ($firstchar !~ /[[:print:]]/) { # is not a text character return ""; } while (defined($line = )) { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines if ($line =~ /^%warn\s+(.*)/) { # 'warn' command # Note this matches both '%warn blah\n' and '%warn\n'. print STDERR "WARNING: $1\n"; # print the rest of the line } elsif ($line =~ /^%/) { print STDERR "Ignoring unknown command from profile header: $line"; } else { # End of commands, must be the header line. return $line; } } return undef; # got to EOF without seeing a header line } sub IsSymbolizedProfileFile { my $file_name = shift; if (!(-e $file_name) || !(-r $file_name)) { return 0; } # Check if the file contains a symbol-section marker. open(TFILE, "<$file_name"); binmode TFILE; my $firstline = ReadProfileHeader(*TFILE); close(TFILE); if (!$firstline) { return 0; } $SYMBOL_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $symbol_marker = $&; return $firstline =~ /^--- *$symbol_marker/; } # Parse profile generated by common/profiler.cc and return a reference # to a map: # $result->{version} Version number of profile file # $result->{period} Sampling period (in microseconds) # $result->{profile} Profile object # $result->{map} Memory map info from profile # $result->{pcs} Hash of all PC values seen, key is hex address sub ReadProfile { my $prog = shift; my $fname = shift; my $result; # return value $CONTENTION_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $contention_marker = $&; $GROWTH_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $growth_marker = $&; $SYMBOL_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $symbol_marker = $&; $PROFILE_PAGE =~ m,[^/]+$,; # matches everything after the last slash my $profile_marker = $&; # Look at first line to see if it is a heap or a CPU profile. # CPU profile may start with no header at all, and just binary data # (starting with \0\0\0\0) -- in that case, don't try to read the # whole firstline, since it may be gigabytes(!) of data. open(PROFILE, "<$fname") || error("$fname: $!\n"); binmode PROFILE; # New perls do UTF-8 processing my $header = ReadProfileHeader(*PROFILE); if (!defined($header)) { # means "at EOF" error("Profile is empty.\n"); } my $symbols; if ($header =~ m/^--- *$symbol_marker/o) { # Verify that the user asked for a symbolized profile if (!$main::use_symbolized_profile) { # we have both a binary and symbolized profiles, abort error("FATAL ERROR: Symbolized profile\n $fname\ncannot be used with " . "a binary arg. Try again without passing\n $prog\n"); } # Read the symbol section of the symbolized profile file. $symbols = ReadSymbols(*PROFILE{IO}); # Read the next line to get the header for the remaining profile. $header = ReadProfileHeader(*PROFILE) || ""; } $main::profile_type = ''; if ($header =~ m/^heap profile:.*$growth_marker/o) { $main::profile_type = 'growth'; $result = ReadHeapProfile($prog, *PROFILE, $header); } elsif ($header =~ m/^heap profile:/) { $main::profile_type = 'heap'; $result = ReadHeapProfile($prog, *PROFILE, $header); } elsif ($header =~ m/^--- *$contention_marker/o) { $main::profile_type = 'contention'; $result = ReadSynchProfile($prog, *PROFILE); } elsif ($header =~ m/^--- *Stacks:/) { print STDERR "Old format contention profile: mistakenly reports " . "condition variable signals as lock contentions.\n"; $main::profile_type = 'contention'; $result = ReadSynchProfile($prog, *PROFILE); } elsif ($header =~ m/^--- *$profile_marker/) { # the binary cpu profile data starts immediately after this line $main::profile_type = 'cpu'; $result = ReadCPUProfile($prog, $fname, *PROFILE); } else { if (defined($symbols)) { # a symbolized profile contains a format we don't recognize, bail out error("$fname: Cannot recognize profile section after symbols.\n"); } # no ascii header present -- must be a CPU profile $main::profile_type = 'cpu'; $result = ReadCPUProfile($prog, $fname, *PROFILE); } close(PROFILE); # if we got symbols along with the profile, return those as well if (defined($symbols)) { $result->{symbols} = $symbols; } return $result; } # Subtract one from caller pc so we map back to call instr. # However, don't do this if we're reading a symbolized profile # file, in which case the subtract-one was done when the file # was written. # # We apply the same logic to all readers, though ReadCPUProfile uses an # independent implementation. sub FixCallerAddresses { my $stack = shift; if ($main::use_symbolized_profile) { return $stack; } else { $stack =~ /(\s)/; my $delimiter = $1; my @addrs = split(' ', $stack); my @fixedaddrs; $#fixedaddrs = $#addrs; if ($#addrs >= 0) { $fixedaddrs[0] = $addrs[0]; } for (my $i = 1; $i <= $#addrs; $i++) { $fixedaddrs[$i] = AddressSub($addrs[$i], "0x1"); } return join $delimiter, @fixedaddrs; } } # CPU profile reader sub ReadCPUProfile { my $prog = shift; my $fname = shift; # just used for logging local *PROFILE = shift; my $version; my $period; my $i; my $profile = {}; my $pcs = {}; # Parse string into array of slots. my $slots = CpuProfileStream->new(*PROFILE, $fname); # Read header. The current header version is a 5-element structure # containing: # 0: header count (always 0) # 1: header "words" (after this one: 3) # 2: format version (0) # 3: sampling period (usec) # 4: unused padding (always 0) if ($slots->get(0) != 0 ) { error("$fname: not a profile file, or old format profile file\n"); } $i = 2 + $slots->get(1); $version = $slots->get(2); $period = $slots->get(3); # Do some sanity checking on these header values. if ($version > (2**32) || $period > (2**32) || $i > (2**32) || $i < 5) { error("$fname: not a profile file, or corrupted profile file\n"); } # Parse profile while ($slots->get($i) != -1) { my $n = $slots->get($i++); my $d = $slots->get($i++); if ($d > (2**16)) { # TODO(csilvers): what's a reasonable max-stack-depth? my $addr = sprintf("0%o", $i * ($address_length == 8 ? 4 : 8)); print STDERR "At index $i (address $addr):\n"; error("$fname: stack trace depth >= 2**32\n"); } if ($slots->get($i) == 0) { # End of profile data marker $i += $d; last; } # Make key out of the stack entries my @k = (); for (my $j = 0; $j < $d; $j++) { my $pc = $slots->get($i+$j); # Subtract one from caller pc so we map back to call instr. # However, don't do this if we're reading a symbolized profile # file, in which case the subtract-one was done when the file # was written. if ($j > 0 && !$main::use_symbolized_profile) { $pc--; } $pc = sprintf("%0*x", $address_length, $pc); $pcs->{$pc} = 1; push @k, $pc; } AddEntry($profile, (join "\n", @k), $n); $i += $d; } # Parse map my $map = ''; seek(PROFILE, $i * ($address_length / 2), 0); read(PROFILE, $map, (stat PROFILE)[7]); my $r = {}; $r->{version} = $version; $r->{period} = $period; $r->{profile} = $profile; $r->{libs} = ParseLibraries($prog, $map, $pcs); $r->{pcs} = $pcs; return $r; } sub ReadHeapProfile { my $prog = shift; local *PROFILE = shift; my $header = shift; my $index = 1; if ($main::opt_inuse_space) { $index = 1; } elsif ($main::opt_inuse_objects) { $index = 0; } elsif ($main::opt_alloc_space) { $index = 3; } elsif ($main::opt_alloc_objects) { $index = 2; } # Find the type of this profile. The header line looks like: # heap profile: 1246: 8800744 [ 1246: 8800744] @ /266053 # There are two pairs , the first inuse objects/space, and the # second allocated objects/space. This is followed optionally by a profile # type, and if that is present, optionally by a sampling frequency. # For remote heap profiles (v1): # The interpretation of the sampling frequency is that the profiler, for # each sample, calculates a uniformly distributed random integer less than # the given value, and records the next sample after that many bytes have # been allocated. Therefore, the expected sample interval is half of the # given frequency. By default, if not specified, the expected sample # interval is 128KB. Only remote-heap-page profiles are adjusted for # sample size. # For remote heap profiles (v2): # The sampling frequency is the rate of a Poisson process. This means that # the probability of sampling an allocation of size X with sampling rate Y # is 1 - exp(-X/Y) # For version 2, a typical header line might look like this: # heap profile: 1922: 127792360 [ 1922: 127792360] @ _v2/524288 # the trailing number (524288) is the sampling rate. (Version 1 showed # double the 'rate' here) my $sampling_algorithm = 0; my $sample_adjustment = 0; chomp($header); my $type = "unknown"; if ($header =~ m"^heap profile:\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\](\s*@\s*([^/]*)(/(\d+))?)?") { if (defined($6) && ($6 ne '')) { $type = $6; my $sample_period = $8; # $type is "heapprofile" for profiles generated by the # heap-profiler, and either "heap" or "heap_v2" for profiles # generated by sampling directly within tcmalloc. It can also # be "growth" for heap-growth profiles. The first is typically # found for profiles generated locally, and the others for # remote profiles. if (($type eq "heapprofile") || ($type !~ /heap/) ) { # No need to adjust for the sampling rate with heap-profiler-derived data $sampling_algorithm = 0; } elsif ($type =~ /_v2/) { $sampling_algorithm = 2; # version 2 sampling if (defined($sample_period) && ($sample_period ne '')) { $sample_adjustment = int($sample_period); } } else { $sampling_algorithm = 1; # version 1 sampling if (defined($sample_period) && ($sample_period ne '')) { $sample_adjustment = int($sample_period)/2; } } } else { # We detect whether or not this is a remote-heap profile by checking # that the total-allocated stats ($n2,$s2) are exactly the # same as the in-use stats ($n1,$s1). It is remotely conceivable # that a non-remote-heap profile may pass this check, but it is hard # to imagine how that could happen. # In this case it's so old it's guaranteed to be remote-heap version 1. my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4); if (($n1 == $n2) && ($s1 == $s2)) { # This is likely to be a remote-heap based sample profile $sampling_algorithm = 1; } } } if ($sampling_algorithm > 0) { # For remote-heap generated profiles, adjust the counts and sizes to # account for the sample rate (we sample once every 128KB by default). if ($sample_adjustment == 0) { # Turn on profile adjustment. $sample_adjustment = 128*1024; print STDERR "Adjusting heap profiles for 1-in-128KB sampling rate\n"; } else { printf STDERR ("Adjusting heap profiles for 1-in-%d sampling rate\n", $sample_adjustment); } if ($sampling_algorithm > 1) { # We don't bother printing anything for the original version (version 1) printf STDERR "Heap version $sampling_algorithm\n"; } } my $profile = {}; my $pcs = {}; my $map = ""; while () { s/\r//g; # turn windows-looking lines into unix-looking lines if (/^MAPPED_LIBRARIES:/) { # Read the /proc/self/maps data while () { s/\r//g; # turn windows-looking lines into unix-looking lines $map .= $_; } last; } if (/^--- Memory map:/) { # Read /proc/self/maps data as formatted by DumpAddressMap() my $buildvar = ""; while () { s/\r//g; # turn windows-looking lines into unix-looking lines # Parse "build=" specification if supplied if (m/^\s*build=(.*)\n/) { $buildvar = $1; } # Expand "$build" variable if available $_ =~ s/\$build\b/$buildvar/g; $map .= $_; } last; } # Read entry of the form: # : [: ] @ a1 a2 a3 ... an s/^\s*//; s/\s*$//; if (m/^\s*(\d+):\s+(\d+)\s+\[\s*(\d+):\s+(\d+)\]\s+@\s+(.*)$/) { my $stack = $5; my ($n1, $s1, $n2, $s2) = ($1, $2, $3, $4); if ($sample_adjustment) { if ($sampling_algorithm == 2) { # Remote-heap version 2 # The sampling frequency is the rate of a Poisson process. # This means that the probability of sampling an allocation of # size X with sampling rate Y is 1 - exp(-X/Y) if ($n1 != 0) { my $ratio = (($s1*1.0)/$n1)/($sample_adjustment); my $scale_factor = 1/(1 - exp(-$ratio)); $n1 *= $scale_factor; $s1 *= $scale_factor; } if ($n2 != 0) { my $ratio = (($s2*1.0)/$n2)/($sample_adjustment); my $scale_factor = 1/(1 - exp(-$ratio)); $n2 *= $scale_factor; $s2 *= $scale_factor; } } else { # Remote-heap version 1 my $ratio; $ratio = (($s1*1.0)/$n1)/($sample_adjustment); if ($ratio < 1) { $n1 /= $ratio; $s1 /= $ratio; } $ratio = (($s2*1.0)/$n2)/($sample_adjustment); if ($ratio < 1) { $n2 /= $ratio; $s2 /= $ratio; } } } my @counts = ($n1, $s1, $n2, $s2); $stack = FixCallerAddresses($stack); push @stackTraces, "$n1 $s1 $n2 $s2 $stack"; AddEntries($profile, $pcs, $stack, $counts[$index]); } } my $r = {}; $r->{version} = "heap"; $r->{period} = 1; $r->{profile} = $profile; $r->{libs} = ParseLibraries($prog, $map, $pcs); $r->{pcs} = $pcs; return $r; } sub ReadSynchProfile { my $prog = shift; local *PROFILE = shift; my $header = shift; my $map = ''; my $profile = {}; my $pcs = {}; my $sampling_period = 1; my $cyclespernanosec = 2.8; # Default assumption for old binaries my $seen_clockrate = 0; my $line; my $index = 0; if ($main::opt_total_delay) { $index = 0; } elsif ($main::opt_contentions) { $index = 1; } elsif ($main::opt_mean_delay) { $index = 2; } while ( $line = ) { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines if ( $line =~ /^\s*(\d+)\s+(\d+) \@\s*(.*?)\s*$/ ) { my ($cycles, $count, $stack) = ($1, $2, $3); # Convert cycles to nanoseconds $cycles /= $cyclespernanosec; # Adjust for sampling done by application $cycles *= $sampling_period; $count *= $sampling_period; my @values = ($cycles, $count, $cycles / $count); AddEntries($profile, $pcs, FixCallerAddresses($stack), $values[$index]); } elsif ( $line =~ /^(slow release).*thread \d+ \@\s*(.*?)\s*$/ || $line =~ /^\s*(\d+) \@\s*(.*?)\s*$/ ) { my ($cycles, $stack) = ($1, $2); if ($cycles !~ /^\d+$/) { next; } # Convert cycles to nanoseconds $cycles /= $cyclespernanosec; # Adjust for sampling done by application $cycles *= $sampling_period; AddEntries($profile, $pcs, FixCallerAddresses($stack), $cycles); } elsif ( $line =~ m/^([a-z][^=]*)=(.*)$/ ) { my ($variable, $value) = ($1,$2); for ($variable, $value) { s/^\s+//; s/\s+$//; } if ($variable eq "cycles/second") { $cyclespernanosec = $value / 1e9; $seen_clockrate = 1; } elsif ($variable eq "sampling period") { $sampling_period = $value; } elsif ($variable eq "ms since reset") { # Currently nothing is done with this value in pprof # So we just silently ignore it for now } elsif ($variable eq "discarded samples") { # Currently nothing is done with this value in pprof # So we just silently ignore it for now } else { printf STDERR ("Ignoring unnknown variable in /contention output: " . "'%s' = '%s'\n",$variable,$value); } } else { # Memory map entry $map .= $line; } } if (!$seen_clockrate) { printf STDERR ("No cycles/second entry in profile; Guessing %.1f GHz\n", $cyclespernanosec); } my $r = {}; $r->{version} = 0; $r->{period} = $sampling_period; $r->{profile} = $profile; $r->{libs} = ParseLibraries($prog, $map, $pcs); $r->{pcs} = $pcs; return $r; } # Given a hex value in the form "0x1abcd" or "1abcd", return either # "0001abcd" or "000000000001abcd", depending on the current (global) # address length. sub HexExtend { my $addr = shift; $addr =~ s/^(0x)?0*//; my $zeros_needed = $address_length - length($addr); if ($zeros_needed < 0) { printf STDERR "Warning: address $addr is longer than address length $address_length\n"; return $addr; } return ("0" x $zeros_needed) . $addr; } ##### Symbol extraction ##### # Aggressively search the lib_prefix values for the given library # If all else fails, just return the name of the library unmodified. # If the lib_prefix is "/my/path,/other/path" and $file is "/lib/dir/mylib.so" # it will search the following locations in this order, until it finds a file: # /my/path/lib/dir/mylib.so # /other/path/lib/dir/mylib.so # /my/path/dir/mylib.so # /other/path/dir/mylib.so # /my/path/mylib.so # /other/path/mylib.so # /lib/dir/mylib.so (returned as last resort) sub FindLibrary { my $file = shift; my $suffix = $file; # Search for the library as described above do { foreach my $prefix (@prefix_list) { my $fullpath = $prefix . $suffix; if (-e $fullpath) { return $fullpath; } } } while ($suffix =~ s|^/[^/]+/|/|); return $file; } # Return path to library with debugging symbols. # For libc libraries, the copy in /usr/lib/debug contains debugging symbols sub DebuggingLibrary { my $file = shift; if ($file =~ m|^/| && -f "/usr/lib/debug$file") { return "/usr/lib/debug$file"; } return undef; } # Parse text section header of a library using objdump sub ParseTextSectionHeaderFromObjdump { my $lib = shift; my $size = undef; my $vma; my $file_offset; # Get objdump output from the library file to figure out how to # map between mapped addresses and addresses in the library. my $cmd = ShellEscape($obj_tool_map{"objdump"}, "-h", $lib); open(OBJDUMP, "$cmd |") || error("$cmd: $!\n"); while () { s/\r//g; # turn windows-looking lines into unix-looking lines # Idx Name Size VMA LMA File off Algn # 10 .text 00104b2c 420156f0 420156f0 000156f0 2**4 # For 64-bit objects, VMA and LMA will be 16 hex digits, size and file # offset may still be 8. But AddressSub below will still handle that. my @x = split; if (($#x >= 6) && ($x[1] eq '.text')) { $size = $x[2]; $vma = $x[3]; $file_offset = $x[5]; last; } } close(OBJDUMP); if (!defined($size)) { return undef; } my $r = {}; $r->{size} = $size; $r->{vma} = $vma; $r->{file_offset} = $file_offset; return $r; } # Parse text section header of a library using otool (on OS X) sub ParseTextSectionHeaderFromOtool { my $lib = shift; my $size = undef; my $vma = undef; my $file_offset = undef; # Get otool output from the library file to figure out how to # map between mapped addresses and addresses in the library. my $command = ShellEscape($obj_tool_map{"otool"}, "-l", $lib); open(OTOOL, "$command |") || error("$command: $!\n"); my $cmd = ""; my $sectname = ""; my $segname = ""; foreach my $line () { $line =~ s/\r//g; # turn windows-looking lines into unix-looking lines # Load command <#> # cmd LC_SEGMENT # [...] # Section # sectname __text # segname __TEXT # addr 0x000009f8 # size 0x00018b9e # offset 2552 # align 2^2 (4) # We will need to strip off the leading 0x from the hex addresses, # and convert the offset into hex. if ($line =~ /Load command/) { $cmd = ""; $sectname = ""; $segname = ""; } elsif ($line =~ /Section/) { $sectname = ""; $segname = ""; } elsif ($line =~ /cmd (\w+)/) { $cmd = $1; } elsif ($line =~ /sectname (\w+)/) { $sectname = $1; } elsif ($line =~ /segname (\w+)/) { $segname = $1; } elsif (!(($cmd eq "LC_SEGMENT" || $cmd eq "LC_SEGMENT_64") && $sectname eq "__text" && $segname eq "__TEXT")) { next; } elsif ($line =~ /\baddr 0x([0-9a-fA-F]+)/) { $vma = $1; } elsif ($line =~ /\bsize 0x([0-9a-fA-F]+)/) { $size = $1; } elsif ($line =~ /\boffset ([0-9]+)/) { $file_offset = sprintf("%016x", $1); } if (defined($vma) && defined($size) && defined($file_offset)) { last; } } close(OTOOL); if (!defined($vma) || !defined($size) || !defined($file_offset)) { return undef; } my $r = {}; $r->{size} = $size; $r->{vma} = $vma; $r->{file_offset} = $file_offset; return $r; } sub ParseTextSectionHeader { # obj_tool_map("otool") is only defined if we're in a Mach-O environment if (defined($obj_tool_map{"otool"})) { my $r = ParseTextSectionHeaderFromOtool(@_); if (defined($r)){ return $r; } } # If otool doesn't work, or we don't have it, fall back to objdump return ParseTextSectionHeaderFromObjdump(@_); } # Split /proc/pid/maps dump into a list of libraries sub ParseLibraries { return if $main::use_symbol_page; # We don't need libraries info. my $prog = Cwd::abs_path(shift); my $map = shift; my $pcs = shift; my $result = []; my $h = "[a-f0-9]+"; my $zero_offset = HexExtend("0"); my $buildvar = ""; my $priorlib = ""; foreach my $l (split("\n", $map)) { if ($l =~ m/^\s*build=(.*)$/) { $buildvar = $1; } my $start; my $finish; my $offset; my $lib; if ($l =~ /^($h)-($h)\s+..x.\s+($h)\s+\S+:\S+\s+\d+\s+(.+\.(so|dll|dylib|bundle)((\.\d+)+\w*(\.\d+){0,3})?)$/i) { # Full line from /proc/self/maps. Example: # 40000000-40015000 r-xp 00000000 03:01 12845071 /lib/ld-2.3.2.so $start = HexExtend($1); $finish = HexExtend($2); $offset = HexExtend($3); $lib = $4; $lib =~ s|\\|/|g; # turn windows-style paths into unix-style paths } elsif ($l =~ /^\s*($h)-($h):\s*(\S+\.so(\.\d+)*)/) { # Cooked line from DumpAddressMap. Example: # 40000000-40015000: /lib/ld-2.3.2.so $start = HexExtend($1); $finish = HexExtend($2); $offset = $zero_offset; $lib = $3; } elsif (($l =~ /^($h)-($h)\s+..x.\s+($h)\s+\S+:\S+\s+\d+\s+(\S+)$/i) && ($4 eq $prog)) { # PIEs and address space randomization do not play well with our # default assumption that main executable is at lowest # addresses. So we're detecting main executable in # /proc/self/maps as well. $start = HexExtend($1); $finish = HexExtend($2); $offset = HexExtend($3); $lib = $4; $lib =~ s|\\|/|g; # turn windows-style paths into unix-style paths } else { next; } # Expand "$build" variable if available $lib =~ s/\$build\b/$buildvar/g; $lib = FindLibrary($lib); # Check for pre-relocated libraries, which use pre-relocated symbol tables # and thus require adjusting the offset that we'll use to translate # VM addresses into symbol table addresses. # Only do this if we're not going to fetch the symbol table from a # debugging copy of the library. if (!DebuggingLibrary($lib)) { my $text = ParseTextSectionHeader($lib); if (defined($text)) { my $vma_offset = AddressSub($text->{vma}, $text->{file_offset}); $offset = AddressAdd($offset, $vma_offset); } } # If we find multiple executable segments for a single library, merge them # into a single entry that spans the complete address range. if ($lib eq $priorlib) { my $prior = pop(@{$result}); $start = @$prior[1]; # TODO $offset may be wrong if .text is not in the final segment. } push(@{$result}, [$lib, $start, $finish, $offset]); $priorlib = $lib; } # Append special entry for additional library (not relocated) if ($main::opt_lib ne "") { my $text = ParseTextSectionHeader($main::opt_lib); if (defined($text)) { my $start = $text->{vma}; my $finish = AddressAdd($start, $text->{size}); push(@{$result}, [$main::opt_lib, $start, $finish, $start]); } } # Append special entry for the main program. This covers # 0..max_pc_value_seen, so that we assume pc values not found in one # of the library ranges will be treated as coming from the main # program binary. my $min_pc = HexExtend("0"); my $max_pc = $min_pc; # find the maximal PC value in any sample foreach my $pc (keys(%{$pcs})) { if (HexExtend($pc) gt $max_pc) { $max_pc = HexExtend($pc); } } push(@{$result}, [$prog, $min_pc, $max_pc, $zero_offset]); return $result; } # Add two hex addresses of length $address_length. # Run pprof --test for unit test if this is changed. sub AddressAdd { my $addr1 = shift; my $addr2 = shift; my $sum; if ($address_length == 8) { # Perl doesn't cope with wraparound arithmetic, so do it explicitly: $sum = (hex($addr1)+hex($addr2)) % (0x10000000 * 16); return sprintf("%08x", $sum); } else { # Do the addition in 7-nibble chunks to trivialize carry handling. if ($main::opt_debug and $main::opt_test) { print STDERR "AddressAdd $addr1 + $addr2 = "; } my $a1 = substr($addr1,-7); $addr1 = substr($addr1,0,-7); my $a2 = substr($addr2,-7); $addr2 = substr($addr2,0,-7); $sum = hex($a1) + hex($a2); my $c = 0; if ($sum > 0xfffffff) { $c = 1; $sum -= 0x10000000; } my $r = sprintf("%07x", $sum); $a1 = substr($addr1,-7); $addr1 = substr($addr1,0,-7); $a2 = substr($addr2,-7); $addr2 = substr($addr2,0,-7); $sum = hex($a1) + hex($a2) + $c; $c = 0; if ($sum > 0xfffffff) { $c = 1; $sum -= 0x10000000; } $r = sprintf("%07x", $sum) . $r; $sum = hex($addr1) + hex($addr2) + $c; if ($sum > 0xff) { $sum -= 0x100; } $r = sprintf("%02x", $sum) . $r; if ($main::opt_debug and $main::opt_test) { print STDERR "$r\n"; } return $r; } } # Subtract two hex addresses of length $address_length. # Run pprof --test for unit test if this is changed. sub AddressSub { my $addr1 = shift; my $addr2 = shift; my $diff; if ($address_length == 8) { # Perl doesn't cope with wraparound arithmetic, so do it explicitly: $diff = (hex($addr1)-hex($addr2)) % (0x10000000 * 16); return sprintf("%08x", $diff); } else { # Do the addition in 7-nibble chunks to trivialize borrow handling. # if ($main::opt_debug) { print STDERR "AddressSub $addr1 - $addr2 = "; } my $a1 = hex(substr($addr1,-7)); $addr1 = substr($addr1,0,-7); my $a2 = hex(substr($addr2,-7)); $addr2 = substr($addr2,0,-7); my $b = 0; if ($a2 > $a1) { $b = 1; $a1 += 0x10000000; } $diff = $a1 - $a2; my $r = sprintf("%07x", $diff); $a1 = hex(substr($addr1,-7)); $addr1 = substr($addr1,0,-7); $a2 = hex(substr($addr2,-7)) + $b; $addr2 = substr($addr2,0,-7); $b = 0; if ($a2 > $a1) { $b = 1; $a1 += 0x10000000; } $diff = $a1 - $a2; $r = sprintf("%07x", $diff) . $r; $a1 = hex($addr1); $a2 = hex($addr2) + $b; if ($a2 > $a1) { $a1 += 0x100; } $diff = $a1 - $a2; $r = sprintf("%02x", $diff) . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return $r; } } # Increment a hex addresses of length $address_length. # Run pprof --test for unit test if this is changed. sub AddressInc { my $addr = shift; my $sum; if ($address_length == 8) { # Perl doesn't cope with wraparound arithmetic, so do it explicitly: $sum = (hex($addr)+1) % (0x10000000 * 16); return sprintf("%08x", $sum); } else { # Do the addition in 7-nibble chunks to trivialize carry handling. # We are always doing this to step through the addresses in a function, # and will almost never overflow the first chunk, so we check for this # case and exit early. # if ($main::opt_debug) { print STDERR "AddressInc $addr1 = "; } my $a1 = substr($addr,-7); $addr = substr($addr,0,-7); $sum = hex($a1) + 1; my $r = sprintf("%07x", $sum); if ($sum <= 0xfffffff) { $r = $addr . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return HexExtend($r); } else { $r = "0000000"; } $a1 = substr($addr,-7); $addr = substr($addr,0,-7); $sum = hex($a1) + 1; $r = sprintf("%07x", $sum) . $r; if ($sum <= 0xfffffff) { $r = $addr . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return HexExtend($r); } else { $r = "00000000000000"; } $sum = hex($addr) + 1; if ($sum > 0xff) { $sum -= 0x100; } $r = sprintf("%02x", $sum) . $r; # if ($main::opt_debug) { print STDERR "$r\n"; } return $r; } } # Extract symbols for all PC values found in profile sub ExtractSymbols { my $libs = shift; my $pcset = shift; my $symbols = {}; # Map each PC value to the containing library. To make this faster, # we sort libraries by their starting pc value (highest first), and # advance through the libraries as we advance the pc. Sometimes the # addresses of libraries may overlap with the addresses of the main # binary, so to make sure the libraries 'win', we iterate over the # libraries in reverse order (which assumes the binary doesn't start # in the middle of a library, which seems a fair assumption). my @pcs = (sort { $a cmp $b } keys(%{$pcset})); # pcset is 0-extended strings foreach my $lib (sort {$b->[1] cmp $a->[1]} @{$libs}) { my $libname = $lib->[0]; my $start = $lib->[1]; my $finish = $lib->[2]; my $offset = $lib->[3]; # Get list of pcs that belong in this library. my $contained = []; my ($start_pc_index, $finish_pc_index); # Find smallest finish_pc_index such that $finish < $pc[$finish_pc_index]. for ($finish_pc_index = $#pcs + 1; $finish_pc_index > 0; $finish_pc_index--) { last if $pcs[$finish_pc_index - 1] le $finish; } # Find smallest start_pc_index such that $start <= $pc[$start_pc_index]. for ($start_pc_index = $finish_pc_index; $start_pc_index > 0; $start_pc_index--) { last if $pcs[$start_pc_index - 1] lt $start; } # This keeps PC values higher than $pc[$finish_pc_index] in @pcs, # in case there are overlaps in libraries and the main binary. @{$contained} = splice(@pcs, $start_pc_index, $finish_pc_index - $start_pc_index); # Map to symbols MapToSymbols($libname, AddressSub($start, $offset), $contained, $symbols); } return $symbols; } # Map list of PC values to symbols for a given image sub MapToSymbols { my $image = shift; my $offset = shift; my $pclist = shift; my $symbols = shift; my $debug = 0; # Ignore empty binaries if ($#{$pclist} < 0) { return; } # Figure out the addr2line command to use my $addr2line = $obj_tool_map{"addr2line"}; my $cmd = ShellEscape($addr2line, "-f", "-C", "-e", $image); if (exists $obj_tool_map{"addr2line_pdb"}) { $addr2line = $obj_tool_map{"addr2line_pdb"}; $cmd = ShellEscape($addr2line, "--demangle", "-f", "-C", "-e", $image); } # If "addr2line" isn't installed on the system at all, just use # nm to get what info we can (function names, but not line numbers). if (system(ShellEscape($addr2line, "--help") . " >$dev_null 2>&1") != 0) { MapSymbolsWithNM($image, $offset, $pclist, $symbols); return; } # "addr2line -i" can produce a variable number of lines per input # address, with no separator that allows us to tell when data for # the next address starts. So we find the address for a special # symbol (_fini) and interleave this address between all real # addresses passed to addr2line. The name of this special symbol # can then be used as a separator. $sep_address = undef; # May be filled in by MapSymbolsWithNM() my $nm_symbols = {}; MapSymbolsWithNM($image, $offset, $pclist, $nm_symbols); if (defined($sep_address)) { # Only add " -i" to addr2line if the binary supports it. # addr2line --help returns 0, but not if it sees an unknown flag first. if (system("$cmd -i --help >$dev_null 2>&1") == 0) { $cmd .= " -i"; } else { $sep_address = undef; # no need for sep_address if we don't support -i } } # Make file with all PC values with intervening 'sep_address' so # that we can reliably detect the end of inlined function list open(ADDRESSES, ">$main::tmpfile_sym") || error("$main::tmpfile_sym: $!\n"); if ($debug) { print("---- $image ---\n"); } for (my $i = 0; $i <= $#{$pclist}; $i++) { # addr2line always reads hex addresses, and does not need '0x' prefix. if ($debug) { printf STDERR ("%s\n", $pclist->[$i]); } printf ADDRESSES ("%s\n", AddressSub($pclist->[$i], $offset)); if (defined($sep_address)) { printf ADDRESSES ("%s\n", $sep_address); } } close(ADDRESSES); if ($debug) { print("----\n"); system("cat", $main::tmpfile_sym); print("----\n"); system("$cmd < " . ShellEscape($main::tmpfile_sym)); print("----\n"); } open(SYMBOLS, "$cmd <" . ShellEscape($main::tmpfile_sym) . " |") || error("$cmd: $!\n"); my $count = 0; # Index in pclist while () { # Read fullfunction and filelineinfo from next pair of lines s/\r?\n$//g; my $fullfunction = $_; $_ = ; s/\r?\n$//g; my $filelinenum = $_; if (defined($sep_address) && $fullfunction eq $sep_symbol) { # Terminating marker for data for this address $count++; next; } $filelinenum =~ s|\\|/|g; # turn windows-style paths into unix-style paths # Remove discriminator markers as this comes after the line number and # confuses the rest of this script. $filelinenum =~ s/ \(discriminator \d+\)$//; # Convert unknown line numbers into line 0. $filelinenum =~ s/:\?$/:0/; my $pcstr = $pclist->[$count]; my $function = ShortFunctionName($fullfunction); my $nms = $nm_symbols->{$pcstr}; if (defined($nms)) { if ($fullfunction eq '??') { # nm found a symbol for us. $function = $nms->[0]; $fullfunction = $nms->[2]; } else { # MapSymbolsWithNM tags each routine with its starting address, # useful in case the image has multiple occurrences of this # routine. (It uses a syntax that resembles template paramters, # that are automatically stripped out by ShortFunctionName().) # addr2line does not provide the same information. So we check # if nm disambiguated our symbol, and if so take the annotated # (nm) version of the routine-name. TODO(csilvers): this won't # catch overloaded, inlined symbols, which nm doesn't see. # Better would be to do a check similar to nm's, in this fn. if ($nms->[2] =~ m/^\Q$function\E/) { # sanity check it's the right fn $function = $nms->[0]; $fullfunction = $nms->[2]; } } } # Prepend to accumulated symbols for pcstr # (so that caller comes before callee) my $sym = $symbols->{$pcstr}; if (!defined($sym)) { $sym = []; $symbols->{$pcstr} = $sym; } unshift(@{$sym}, $function, $filelinenum, $fullfunction); if ($debug) { printf STDERR ("%s => [%s]\n", $pcstr, join(" ", @{$sym})); } if (!defined($sep_address)) { # Inlining is off, so this entry ends immediately $count++; } } close(SYMBOLS); } # Use nm to map the list of referenced PCs to symbols. Return true iff we # are able to read procedure information via nm. sub MapSymbolsWithNM { my $image = shift; my $offset = shift; my $pclist = shift; my $symbols = shift; # Get nm output sorted by increasing address my $symbol_table = GetProcedureBoundaries($image, "."); if (!%{$symbol_table}) { return 0; } # Start addresses are already the right length (8 or 16 hex digits). my @names = sort { $symbol_table->{$a}->[0] cmp $symbol_table->{$b}->[0] } keys(%{$symbol_table}); if ($#names < 0) { # No symbols: just use addresses foreach my $pc (@{$pclist}) { my $pcstr = "0x" . $pc; $symbols->{$pc} = [$pcstr, "?", $pcstr]; } return 0; } # Sort addresses so we can do a join against nm output my $index = 0; my $fullname = $names[0]; my $name = ShortFunctionName($fullname); foreach my $pc (sort { $a cmp $b } @{$pclist}) { # Adjust for mapped offset my $mpc = AddressSub($pc, $offset); while (($index < $#names) && ($mpc ge $symbol_table->{$fullname}->[1])){ $index++; $fullname = $names[$index]; $name = ShortFunctionName($fullname); } if ($mpc lt $symbol_table->{$fullname}->[1]) { $symbols->{$pc} = [$name, "?", $fullname]; } else { my $pcstr = "0x" . $pc; $symbols->{$pc} = [$pcstr, "?", $pcstr]; } } return 1; } sub ShortFunctionName { my $function = shift; while ($function =~ s/\([^()]*\)(\s*const)?//g) { } # Argument types $function =~ s/<[0-9a-f]*>$//g; # Remove Address if (!$main::opt_no_strip_temp) { while ($function =~ s/<[^<>]*>//g) { } # Remove template arguments } $function =~ s/^.*\s+(\w+::)/$1/; # Remove leading type return $function; } # Trim overly long symbols found in disassembler output sub CleanDisassembly { my $d = shift; while ($d =~ s/\([^()%]*\)(\s*const)?//g) { } # Argument types, not (%rax) while ($d =~ s/(\w+)<[^<>]*>/$1/g) { } # Remove template arguments return $d; } # Clean file name for display sub CleanFileName { my ($f) = @_; $f =~ s|^/proc/self/cwd/||; $f =~ s|^\./||; return $f; } # Make address relative to section and clean up for display sub UnparseAddress { my ($offset, $address) = @_; $address = AddressSub($address, $offset); $address =~ s/^0x//; $address =~ s/^0*//; return $address; } ##### Miscellaneous ##### # Find the right versions of the above object tools to use. The # argument is the program file being analyzed, and should be an ELF # 32-bit or ELF 64-bit executable file. The location of the tools # is determined by considering the following options in this order: # 1) --tools option, if set # 2) PPROF_TOOLS environment variable, if set # 3) the environment sub ConfigureObjTools { my $prog_file = shift; # Check for the existence of $prog_file because /usr/bin/file does not # predictably return error status in prod. (-e $prog_file) || error("$prog_file does not exist.\n"); my $file_type = undef; if (-e "/usr/bin/file") { # Follow symlinks (at least for systems where "file" supports that). my $escaped_prog_file = ShellEscape($prog_file); $file_type = `/usr/bin/file -L $escaped_prog_file 2>$dev_null || /usr/bin/file $escaped_prog_file`; } elsif ($^O == "MSWin32") { $file_type = "MS Windows"; } else { print STDERR "WARNING: Can't determine the file type of $prog_file"; } if ($file_type =~ /64-bit/) { # Change $address_length to 16 if the program file is ELF 64-bit. # We can't detect this from many (most?) heap or lock contention # profiles, since the actual addresses referenced are generally in low # memory even for 64-bit programs. $address_length = 16; } if ($file_type =~ /MS Windows/) { # For windows, we provide a version of nm and addr2line as part of # the opensource release, which is capable of parsing # Windows-style PDB executables. It should live in the path, or # in the same directory as pprof. $obj_tool_map{"nm_pdb"} = "nm-pdb"; $obj_tool_map{"addr2line_pdb"} = "addr2line-pdb"; } if ($file_type =~ /Mach-O/) { # OS X uses otool to examine Mach-O files, rather than objdump. $obj_tool_map{"otool"} = "otool"; $obj_tool_map{"addr2line"} = "false"; # no addr2line $obj_tool_map{"objdump"} = "false"; # no objdump } # Go fill in %obj_tool_map with the pathnames to use: foreach my $tool (keys %obj_tool_map) { $obj_tool_map{$tool} = ConfigureTool($obj_tool_map{$tool}); } } # Returns the path of a caller-specified object tool. If --tools or # PPROF_TOOLS are specified, then returns the full path to the tool # with that prefix. Otherwise, returns the path unmodified (which # means we will look for it on PATH). sub ConfigureTool { my $tool = shift; my $path; # --tools (or $PPROF_TOOLS) is a comma separated list, where each # item is either a) a pathname prefix, or b) a map of the form # :. First we look for an entry of type (b) for our # tool. If one is found, we use it. Otherwise, we consider all the # pathname prefixes in turn, until one yields an existing file. If # none does, we use a default path. my $tools = $main::opt_tools || $ENV{"PPROF_TOOLS"} || ""; if ($tools =~ m/(,|^)\Q$tool\E:([^,]*)/) { $path = $2; # TODO(csilvers): sanity-check that $path exists? Hard if it's relative. } elsif ($tools ne '') { foreach my $prefix (split(',', $tools)) { next if ($prefix =~ /:/); # ignore "tool:fullpath" entries in the list if (-x $prefix . $tool) { $path = $prefix . $tool; last; } } if (!$path) { error("No '$tool' found with prefix specified by " . "--tools (or \$PPROF_TOOLS) '$tools'\n"); } } else { # ... otherwise use the version that exists in the same directory as # pprof. If there's nothing there, use $PATH. $0 =~ m,[^/]*$,; # this is everything after the last slash my $dirname = $`; # this is everything up to and including the last slash if (-x "$dirname$tool") { $path = "$dirname$tool"; } else { $path = $tool; } } if ($main::opt_debug) { print STDERR "Using '$path' for '$tool'.\n"; } return $path; } sub ShellEscape { my @escaped_words = (); foreach my $word (@_) { my $escaped_word = $word; if ($word =~ m![^a-zA-Z0-9/.,_=-]!) { # check for anything not in whitelist $escaped_word =~ s/'/'\\''/; $escaped_word = "'$escaped_word'"; } push(@escaped_words, $escaped_word); } return join(" ", @escaped_words); } sub cleanup { unlink($main::tmpfile_sym); unlink(keys %main::tempnames); # We leave any collected profiles in $HOME/pprof in case the user wants # to look at them later. We print a message informing them of this. if ((scalar(@main::profile_files) > 0) && defined($main::collected_profile)) { if (scalar(@main::profile_files) == 1) { print STDERR "Dynamically gathered profile is in $main::collected_profile\n"; } print STDERR "If you want to investigate this profile further, you can do:\n"; print STDERR "\n"; print STDERR " pprof \\\n"; print STDERR " $main::prog \\\n"; print STDERR " $main::collected_profile\n"; print STDERR "\n"; } } sub sighandler { cleanup(); exit(1); } sub error { my $msg = shift; print STDERR $msg; cleanup(); exit(1); } # Run $nm_command and get all the resulting procedure boundaries whose # names match "$regexp" and returns them in a hashtable mapping from # procedure name to a two-element vector of [start address, end address] sub GetProcedureBoundariesViaNm { my $escaped_nm_command = shift; # shell-escaped my $regexp = shift; my $image = shift; my $symbol_table = {}; open(NM, "$escaped_nm_command |") || error("$escaped_nm_command: $!\n"); my $last_start = "0"; my $routine = ""; while () { s/\r//g; # turn windows-looking lines into unix-looking lines if (m/^\s*([0-9a-f]+) (.) (..*)/) { my $start_val = $1; my $type = $2; my $this_routine = $3; # It's possible for two symbols to share the same address, if # one is a zero-length variable (like __start_google_malloc) or # one symbol is a weak alias to another (like __libc_malloc). # In such cases, we want to ignore all values except for the # actual symbol, which in nm-speak has type "T". The logic # below does this, though it's a bit tricky: what happens when # we have a series of lines with the same address, is the first # one gets queued up to be processed. However, it won't # *actually* be processed until later, when we read a line with # a different address. That means that as long as we're reading # lines with the same address, we have a chance to replace that # item in the queue, which we do whenever we see a 'T' entry -- # that is, a line with type 'T'. If we never see a 'T' entry, # we'll just go ahead and process the first entry (which never # got touched in the queue), and ignore the others. if ($start_val eq $last_start && $type =~ /t/i) { # We are the 'T' symbol at this address, replace previous symbol. $routine = $this_routine; next; } elsif ($start_val eq $last_start) { # We're not the 'T' symbol at this address, so ignore us. next; } if ($this_routine eq $sep_symbol) { $sep_address = HexExtend($start_val); } # Tag this routine with the starting address in case the image # has multiple occurrences of this routine. We use a syntax # that resembles template paramters that are automatically # stripped out by ShortFunctionName() $this_routine .= "<$start_val>"; if (defined($routine) && $routine =~ m/$regexp/) { $symbol_table->{$routine} = [HexExtend($last_start), HexExtend($start_val)]; } $last_start = $start_val; $routine = $this_routine; } elsif (m/^Loaded image name: (.+)/) { # The win32 nm workalike emits information about the binary it is using. if ($main::opt_debug) { print STDERR "Using Image $1\n"; } } elsif (m/^PDB file name: (.+)/) { # The win32 nm workalike emits information about the pdb it is using. if ($main::opt_debug) { print STDERR "Using PDB $1\n"; } } } close(NM); # Handle the last line in the nm output. Unfortunately, we don't know # how big this last symbol is, because we don't know how big the file # is. For now, we just give it a size of 0. # TODO(csilvers): do better here. if (defined($routine) && $routine =~ m/$regexp/) { $symbol_table->{$routine} = [HexExtend($last_start), HexExtend($last_start)]; } # Verify if addr2line can find the $sep_symbol. If not, we use objdump # to find the address for the $sep_symbol on code section which addr2line # can find. if (defined($sep_address)){ my $start_val = $sep_address; my $addr2line = $obj_tool_map{"addr2line"}; my $cmd = ShellEscape($addr2line, "-f", "-C", "-e", $image, "-i"); open(FINI, "echo $start_val | $cmd |") || error("echo $start_val | $cmd: $!\n"); $_ = ; s/\r?\n$//g; my $fini = $_; close(FINI); if ($fini ne $sep_symbol){ my $objdump = $obj_tool_map{"objdump"}; $cmd = ShellEscape($objdump, "-d", $image); my $grep = ShellEscape("grep", $sep_symbol); my $tail = ShellEscape("tail", "-n", "1"); open(FINI, "$cmd | $grep | $tail |") || error("$cmd | $grep | $tail: $!\n"); s/\r//g; # turn windows-looking lines into unix-looking lines my $data = ; if (defined($data)){ ($start_val, $fini) = split(/ $dev_null 2>&1"; if (system(ShellEscape($nm, "--demangle", "image") . $to_devnull) == 0) { # In this mode, we do "nm --demangle " $demangle_flag = "--demangle"; $cppfilt_flag = ""; } elsif (system(ShellEscape($cppfilt, $image) . $to_devnull) == 0) { # In this mode, we do "nm | c++filt" $cppfilt_flag = " | " . ShellEscape($cppfilt); }; my $flatten_flag = ""; if (system(ShellEscape($nm, "-f", $image) . $to_devnull) == 0) { $flatten_flag = "-f"; } # Finally, in the case $imagie isn't a debug library, we try again with # -D to at least get *exported* symbols. If we can't use --demangle, # we use c++filt instead, if it exists on this system. my @nm_commands = (ShellEscape($nm, "-n", $flatten_flag, $demangle_flag, $image) . " 2>$dev_null $cppfilt_flag", ShellEscape($nm, "-D", "-n", $flatten_flag, $demangle_flag, $image) . " 2>$dev_null $cppfilt_flag", # 6nm is for Go binaries ShellEscape("6nm", "$image") . " 2>$dev_null | sort", ); # If the executable is an MS Windows PDB-format executable, we'll # have set up obj_tool_map("nm_pdb"). In this case, we actually # want to use both unix nm and windows-specific nm_pdb, since # PDB-format executables can apparently include dwarf .o files. if (exists $obj_tool_map{"nm_pdb"}) { push(@nm_commands, ShellEscape($obj_tool_map{"nm_pdb"}, "--demangle", $image) . " 2>$dev_null"); } foreach my $nm_command (@nm_commands) { my $symbol_table = GetProcedureBoundariesViaNm($nm_command, $regexp, $image); return $symbol_table if (%{$symbol_table}); } my $symbol_table = {}; return $symbol_table; } # The test vectors for AddressAdd/Sub/Inc are 8-16-nibble hex strings. # To make them more readable, we add underscores at interesting places. # This routine removes the underscores, producing the canonical representation # used by pprof to represent addresses, particularly in the tested routines. sub CanonicalHex { my $arg = shift; return join '', (split '_',$arg); } # Unit test for AddressAdd: sub AddressAddUnitTest { my $test_data_8 = shift; my $test_data_16 = shift; my $error_count = 0; my $fail_count = 0; my $pass_count = 0; # print STDERR "AddressAddUnitTest: ", 1+$#{$test_data_8}, " tests\n"; # First a few 8-nibble addresses. Note that this implementation uses # plain old arithmetic, so a quick sanity check along with verifying what # happens to overflow (we want it to wrap): $address_length = 8; foreach my $row (@{$test_data_8}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressAdd ($row->[0], $row->[1]); if ($sum ne $row->[2]) { printf STDERR "ERROR: %s != %s + %s = %s\n", $sum, $row->[0], $row->[1], $row->[2]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressAdd 32-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count = $fail_count; $fail_count = 0; $pass_count = 0; # Now 16-nibble addresses. $address_length = 16; foreach my $row (@{$test_data_16}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressAdd (CanonicalHex($row->[0]), CanonicalHex($row->[1])); my $expected = join '', (split '_',$row->[2]); if ($sum ne CanonicalHex($row->[2])) { printf STDERR "ERROR: %s != %s + %s = %s\n", $sum, $row->[0], $row->[1], $row->[2]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressAdd 64-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count += $fail_count; return $error_count; } # Unit test for AddressSub: sub AddressSubUnitTest { my $test_data_8 = shift; my $test_data_16 = shift; my $error_count = 0; my $fail_count = 0; my $pass_count = 0; # print STDERR "AddressSubUnitTest: ", 1+$#{$test_data_8}, " tests\n"; # First a few 8-nibble addresses. Note that this implementation uses # plain old arithmetic, so a quick sanity check along with verifying what # happens to overflow (we want it to wrap): $address_length = 8; foreach my $row (@{$test_data_8}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressSub ($row->[0], $row->[1]); if ($sum ne $row->[3]) { printf STDERR "ERROR: %s != %s - %s = %s\n", $sum, $row->[0], $row->[1], $row->[3]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressSub 32-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count = $fail_count; $fail_count = 0; $pass_count = 0; # Now 16-nibble addresses. $address_length = 16; foreach my $row (@{$test_data_16}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressSub (CanonicalHex($row->[0]), CanonicalHex($row->[1])); if ($sum ne CanonicalHex($row->[3])) { printf STDERR "ERROR: %s != %s - %s = %s\n", $sum, $row->[0], $row->[1], $row->[3]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressSub 64-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count += $fail_count; return $error_count; } # Unit test for AddressInc: sub AddressIncUnitTest { my $test_data_8 = shift; my $test_data_16 = shift; my $error_count = 0; my $fail_count = 0; my $pass_count = 0; # print STDERR "AddressIncUnitTest: ", 1+$#{$test_data_8}, " tests\n"; # First a few 8-nibble addresses. Note that this implementation uses # plain old arithmetic, so a quick sanity check along with verifying what # happens to overflow (we want it to wrap): $address_length = 8; foreach my $row (@{$test_data_8}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressInc ($row->[0]); if ($sum ne $row->[4]) { printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum, $row->[0], $row->[4]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressInc 32-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count = $fail_count; $fail_count = 0; $pass_count = 0; # Now 16-nibble addresses. $address_length = 16; foreach my $row (@{$test_data_16}) { if ($main::opt_debug and $main::opt_test) { print STDERR "@{$row}\n"; } my $sum = AddressInc (CanonicalHex($row->[0])); if ($sum ne CanonicalHex($row->[4])) { printf STDERR "ERROR: %s != %s + 1 = %s\n", $sum, $row->[0], $row->[4]; ++$fail_count; } else { ++$pass_count; } } printf STDERR "AddressInc 64-bit tests: %d passes, %d failures\n", $pass_count, $fail_count; $error_count += $fail_count; return $error_count; } # Driver for unit tests. # Currently just the address add/subtract/increment routines for 64-bit. sub RunUnitTests { my $error_count = 0; # This is a list of tuples [a, b, a+b, a-b, a+1] my $unit_test_data_8 = [ [qw(aaaaaaaa 50505050 fafafafa 5a5a5a5a aaaaaaab)], [qw(50505050 aaaaaaaa fafafafa a5a5a5a6 50505051)], [qw(ffffffff aaaaaaaa aaaaaaa9 55555555 00000000)], [qw(00000001 ffffffff 00000000 00000002 00000002)], [qw(00000001 fffffff0 fffffff1 00000011 00000002)], ]; my $unit_test_data_16 = [ # The implementation handles data in 7-nibble chunks, so those are the # interesting boundaries. [qw(aaaaaaaa 50505050 00_000000f_afafafa 00_0000005_a5a5a5a 00_000000a_aaaaaab)], [qw(50505050 aaaaaaaa 00_000000f_afafafa ff_ffffffa_5a5a5a6 00_0000005_0505051)], [qw(ffffffff aaaaaaaa 00_000001a_aaaaaa9 00_0000005_5555555 00_0000010_0000000)], [qw(00000001 ffffffff 00_0000010_0000000 ff_ffffff0_0000002 00_0000000_0000002)], [qw(00000001 fffffff0 00_000000f_ffffff1 ff_ffffff0_0000011 00_0000000_0000002)], [qw(00_a00000a_aaaaaaa 50505050 00_a00000f_afafafa 00_a000005_a5a5a5a 00_a00000a_aaaaaab)], [qw(0f_fff0005_0505050 aaaaaaaa 0f_fff000f_afafafa 0f_ffefffa_5a5a5a6 0f_fff0005_0505051)], [qw(00_000000f_fffffff 01_800000a_aaaaaaa 01_800001a_aaaaaa9 fe_8000005_5555555 00_0000010_0000000)], [qw(00_0000000_0000001 ff_fffffff_fffffff 00_0000000_0000000 00_0000000_0000002 00_0000000_0000002)], [qw(00_0000000_0000001 ff_fffffff_ffffff0 ff_fffffff_ffffff1 00_0000000_0000011 00_0000000_0000002)], ]; $error_count += AddressAddUnitTest($unit_test_data_8, $unit_test_data_16); $error_count += AddressSubUnitTest($unit_test_data_8, $unit_test_data_16); $error_count += AddressIncUnitTest($unit_test_data_8, $unit_test_data_16); if ($error_count > 0) { print STDERR $error_count, " errors: FAILED\n"; } else { print STDERR "PASS\n"; } exit ($error_count); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������gperftools-2.4/vsprojects/��������������������������������������������������������������������������0000755�0000000�0000000�00000000000�12454304760�012721� 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Foundation, Inc. This file is free documentation; the Free Software Foundation gives unlimited permission to copy, distribute and modify it. Perftools-Specific Install Notes ================================ *** Building from source repository As of 2.1 gperftools does not have configure and other autotools products checked into it's source repository. This is common practice for projects using autotools. NOTE: Source releases (.tar.gz that you download from code.google.com/p/gperftools) still have all required files just as before. Nothing has changed w.r.t. building from .tar.gz releases. But, in order to build gperftools checked out from subversion repository you need to have autoconf, automake and libtool installed. And before running ./configure you have to generate it (and a bunch of other files) by running ./autogen.sh script. That script will take care of calling correct autotools programs in correct order. If you're maintainer then it's business as usual too. Just run make dist (or, preferably, make distcheck) and it'll produce .tar.gz or .tar.bz2 with all autotools magic already included. So that users can build our software without having autotools. *** NOTE FOR 64-BIT LINUX SYSTEMS The glibc built-in stack-unwinder on 64-bit systems has some problems with the perftools libraries. (In particular, the cpu/heap profiler may be in the middle of malloc, holding some malloc-related locks when they invoke the stack unwinder. The built-in stack unwinder may call malloc recursively, which may require the thread to acquire a lock it already holds: deadlock.) For that reason, if you use a 64-bit system, we strongly recommend you install libunwind before trying to configure or install gperftools. libunwind can be found at http://download.savannah.gnu.org/releases/libunwind/libunwind-0.99-beta.tar.gz Even if you already have libunwind installed, you should check the version. Versions older than this will not work properly; too-new versions introduce new code that does not work well with perftools (because libunwind can call malloc, which will lead to deadlock). There have been reports of crashes with libunwind 0.99 (see http://code.google.com/p/gperftools/issues/detail?id=374). Alternately, you can use a more recent libunwind (e.g. 1.0.1) at the cost of adding a bit of boilerplate to your code. For details, see http://groups.google.com/group/google-perftools/msg/2686d9f24ac4365f CAUTION: if you install libunwind from the url above, be aware that you may have trouble if you try to statically link your binary with perftools: that is, if you link with 'gcc -static -lgcc_eh ...'. This is because both libunwind and libgcc implement the same C++ exception handling APIs, but they implement them differently on some platforms. This is not likely to be a problem on ia64, but may be on x86-64. Also, if you link binaries statically, make sure that you add -Wl,--eh-frame-hdr to your linker options. This is required so that libunwind can find the information generated by the compiler required for stack unwinding. Using -static is rare, though, so unless you know this will affect you it probably won't. If you cannot or do not wish to install libunwind, you can still try to use the built-in stack unwinder. The built-in stack unwinder requires that your application, the tcmalloc library, and system libraries like libc, all be compiled with a frame pointer. This is *not* the default for x86-64. If you are on x86-64 system, know that you have a set of system libraries with frame-pointers enabled, and compile all your applications with -fno-omit-frame-pointer, then you can enable the built-in perftools stack unwinder by passing the --enable-frame-pointers flag to configure. Even with the use of libunwind, there are still known problems with stack unwinding on 64-bit systems, particularly x86-64. See the "64-BIT ISSUES" section in README. If you encounter problems, try compiling perftools with './configure --enable-frame-pointers'. Note you will need to compile your application with frame pointers (via 'gcc -fno-omit-frame-pointer ...') in this case. *** TCMALLOC LARGE PAGES: TRADING TIME FOR SPACE You can set a compiler directive that makes tcmalloc faster, at the cost of using more space (due to internal fragmentation). Internally, tcmalloc divides its memory into "pages." The default page size is chosen to minimize memory use by reducing fragmentation. The cost is that keeping track of these pages can cost tcmalloc time. We've added a new flag to tcmalloc that enables a larger page size. In general, this will increase the memory needs of applications using tcmalloc. However, in many cases it will speed up the applications as well, particularly if they allocate and free a lot of memory. We've seen average speedups of 3-5% on Google applications. To build libtcmalloc with large pages you need to use the --with-tcmalloc-pagesize=ARG configure flag, e.g.: ./configure --with-tcmalloc-pagesize=32 The ARG argument can be 8, 32 or 64 which sets the internal page size to 8K, 32K and 64K repectively. The default is 8K. *** SMALL TCMALLOC CACHES: TRADING SPACE FOR TIME You can set a compiler directive that makes tcmalloc use less memory for overhead, at the cost of some time. Internally, tcmalloc keeps information about some of its internal data structures in a cache. This speeds memory operations that need to access this internal data. We've added a new, experimental flag to tcmalloc that reduces the size of this cache, decresaing the memory needs of applications using tcmalloc. This feature is still very experimental; it's not even a configure flag yet. To build libtcmalloc with smaller internal caches, run ./configure CXXFLAGS=-DTCMALLOC_SMALL_BUT_SLOW (or add -DTCMALLOC_SMALL_BUT_SLOW to your existing CXXFLAGS argument). *** NOTE FOR ___tls_get_addr ERROR When compiling perftools on some old systems, like RedHat 8, you may get an error like this: ___tls_get_addr: symbol not found This means that you have a system where some parts are updated enough to support Thread Local Storage, but others are not. The perftools configure script can't always detect this kind of case, leading to that error. To fix it, just comment out the line #define HAVE_TLS 1 in your config.h file before building. *** TCMALLOC AND DLOPEN To improve performance, we use the "initial exec" model of Thread Local Storage in tcmalloc. The price for this is the library will not work correctly if it is loaded via dlopen(). This should not be a problem, since loading a malloc-replacement library via dlopen is asking for trouble in any case: some data will be allocated with one malloc, some with another. If, for some reason, you *do* need to use dlopen on tcmalloc, the easiest way is to use a version of tcmalloc with TLS turned off; see the ___tls_get_addr note above. *** COMPILING ON NON-LINUX SYSTEMS Perftools has been tested on the following systems: FreeBSD 6.0 (x86) FreeBSD 8.1 (x86_64) Linux CentOS 5.5 (x86_64) Linux Debian 4.0 (PPC) Linux Debian 5.0 (x86) Linux Fedora Core 3 (x86) Linux Fedora Core 4 (x86) Linux Fedora Core 5 (x86) Linux Fedora Core 6 (x86) Linux Fedora Core 13 (x86_64) Linux Fedora Core 14 (x86_64) Linux RedHat 9 (x86) Linux Slackware 13 (x86_64) Linux Ubuntu 6.06.1 (x86) Linux Ubuntu 6.06.1 (x86_64) Linux Ubuntu 10.04 (x86) Linux Ubuntu 10.10 (x86_64) Mac OS X 10.3.9 (Panther) (PowerPC) Mac OS X 10.4.8 (Tiger) (PowerPC) Mac OS X 10.4.8 (Tiger) (x86) Mac OS X 10.5 (Leopard) (x86) Mac OS X 10.6 (Snow Leopard) (x86) Solaris 10 (x86_64) Windows XP, Visual Studio 2003 (VC++ 7.1) (x86) Windows XP, Visual Studio 2005 (VC++ 8) (x86) Windows XP, Visual Studio 2005 (VC++ 9) (x86) Windows XP, Visual Studio 2005 (VC++ 10) (x86) Windows XP, MinGW 5.1.3 (x86) Windows XP, Cygwin 5.1 (x86) It works in its full generality on the Linux systems tested (though see 64-bit notes above). Portions of perftools work on the other systems. The basic memory-allocation library, tcmalloc_minimal, works on all systems. The cpu-profiler also works fairly widely. However, the heap-profiler and heap-checker are not yet as widely supported. In general, the 'configure' script will detect what OS you are building for, and only build the components that work on that OS. Note that tcmalloc_minimal is perfectly usable as a malloc/new replacement, so it is possible to use tcmalloc on all the systems above, by linking in libtcmalloc_minimal. ** FreeBSD: The following binaries build and run successfully (creating libtcmalloc_minimal.so and libprofile.so in the process): % ./configure % make tcmalloc_minimal_unittest tcmalloc_minimal_large_unittest \ addressmap_unittest atomicops_unittest frag_unittest \ low_level_alloc_unittest markidle_unittest memalign_unittest \ packed_cache_test stacktrace_unittest system_alloc_unittest \ thread_dealloc_unittest profiler_unittest.sh % ./tcmalloc_minimal_unittest # to run this test % [etc] # to run other tests Three caveats: first, frag_unittest tries to allocate 400M of memory, and if you have less virtual memory on your system, the test may fail with a bad_alloc exception. Second, profiler_unittest.sh sometimes fails in the "fork" test. This is because stray SIGPROF signals from the parent process are making their way into the child process. (This may be a kernel bug that only exists in older kernels.) The profiling code itself is working fine. This only affects programs that call fork(); for most programs, the cpu profiler is entirely safe to use. Third, perftools depends on /proc to get shared library information. If you are running a FreeBSD system without proc, perftools will not be able to map addresses to functions. Some unittests will fail as a result. Finally, the new test introduced in perftools-1.2, profile_handler_unittest, fails on FreeBSD. It has something to do with how the itimer works. The cpu profiler test passes, so I believe the functionality is correct and the issue is with the test somehow. If anybody is an expert on itimers and SIGPROF in FreeBSD, and would like to debug this, I'd be glad to hear the results! libtcmalloc.so successfully builds, and the "advanced" tcmalloc functionality all works except for the leak-checker, which has Linux-specific code: % make heap-profiler_unittest.sh maybe_threads_unittest.sh \ tcmalloc_unittest tcmalloc_both_unittest \ tcmalloc_large_unittest # THESE WORK % make -k heap-checker_unittest.sh \ heap-checker-death_unittest.sh # THESE DO NOT Note that unless you specify --enable-heap-checker explicitly, 'make' will not build the heap-checker unittests on a FreeBSD system. I have not tested other *BSD systems, but they are probably similar. ** Mac OS X: I've tested OS X 10.5 [Leopard], OS X 10.4 [Tiger] and OS X 10.3 [Panther] on both intel (x86) and PowerPC systems. For Panther systems, perftools does not work at all: it depends on a header file, OSAtomic.h, which is new in 10.4. (It's possible to get the code working for Panther/i386 without too much work; if you're interested in exploring this, drop an e-mail.) For the other seven systems, the binaries and libraries that successfully build are exactly the same as for FreeBSD. See that section for a list of binaries and instructions on building them. In addition, it appears OS X regularly fails profiler_unittest.sh in the "thread" test (in addition to occassionally failing in the "fork" test). It looks like OS X often delivers the profiling signal to the main thread, even when it's sleeping, rather than spawned threads that are doing actual work. If anyone knows details of how OS X handles SIGPROF (via setitimer()) events with threads, and has insight into this problem, please send mail to google-perftools@googlegroups.com. ** Solaris 10 x86: I've only tested using the GNU C++ compiler, not the Sun C++ compiler. Using g++ requires setting the PATH appropriately when configuring. % PATH=${PATH}:/usr/sfw/bin/:/usr/ccs/bin ./configure % PATH=${PATH}:/usr/sfw/bin/:/usr/ccs/bin make [...] Again, the binaries and libraries that successfully build are exactly the same as for FreeBSD. (However, while libprofiler.so can be used to generate profiles, pprof is not very successful at reading them -- necessary helper programs like nm don't seem to be installed by default on Solaris, or perhaps are only installed as part of the Sun C++ compiler package.) See that section for a list of binaries, and instructions on building them. ** Windows (MSVC, Cygwin, and MinGW): Work on Windows is rather preliminary: we haven't found a good way to get stack traces in release mode on windows (that is, when FPO is enabled), so the heap profiling may not be reliable in that case. Also, heap-checking and CPU profiling do not yet work at all. But as in other ports, the basic tcmalloc library functionality, overriding malloc and new and such (and even windows-specific functions like _aligned_malloc!), is working fine, at least with VC++ 7.1 (Visual Studio 2003) through VC++ 10.0, in both debug and release modes. See README.windows for instructions on how to install on Windows using Visual Studio. Cygwin can compile some but not all of perftools. Furthermore, there is a problem with exception-unwinding in cygwin (it can call malloc, which can call the exception-unwinding-setup code, which can lead to an infinite loop). I've comitted a workaround to the exception unwinding problem, but it only works in debug mode and when statically linking in tcmalloc. I hope to have a more proper fix in a later release. To configure under cygwin, run ./configure --disable-shared CXXFLAGS=-g && make Most of cygwin will compile (cygwin doesn't allow weak symbols, so the heap-checker and a few other pieces of functionality will not compile). 'make' will compile those libraries and tests that can be compiled. You can run 'make check' to make sure the basic functionality is working. I've heard reports that some versions of cygwin fail calls to pthread_join() with EINVAL, causing several tests to fail. If you have any insight into this, please mail google-perftools@googlegroups.com. This Windows functionality is also available using MinGW and Msys, In this case, you can use the regular './configure && make' process. 'make install' should also work. The Makefile will limit itself to those libraries and binaries that work on windows. Basic Installation ================== These are generic installation instructions. The `configure' shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a `Makefile' in each directory of the package. It may also create one or more `.h' files containing system-dependent definitions. Finally, it creates a shell script `config.status' that you can run in the future to recreate the current configuration, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). It can also use an optional file (typically called `config.cache' and enabled with `--cache-file=config.cache' or simply `-C') that saves the results of its tests to speed up reconfiguring. (Caching is disabled by default to prevent problems with accidental use of stale cache files.) If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. If you are using the cache, and at some point `config.cache' contains results you don't want to keep, you may remove or edit it. The file `configure.ac' (or `configure.in') is used to create `configure' by a program called `autoconf'. You only need `configure.ac' if you want to change it or regenerate `configure' using a newer version of `autoconf'. The simplest way to compile this package is: 1. `cd' to the directory containing the package's source code and type `./configure' to configure the package for your system. If you're using `csh' on an old version of System V, you might need to type `sh ./configure' instead to prevent `csh' from trying to execute `configure' itself. Running `configure' takes awhile. While running, it prints some messages telling which features it is checking for. 2. Type `make' to compile the package. 3. Optionally, type `make check' to run any self-tests that come with the package. 4. Type `make install' to install the programs and any data files and documentation. 5. You can remove the program binaries and object files from the source code directory by typing `make clean'. To also remove the files that `configure' created (so you can compile the package for a different kind of computer), type `make distclean'. There is also a `make maintainer-clean' target, but that is intended mainly for the package's developers. If you use it, you may have to get all sorts of other programs in order to regenerate files that came with the distribution. Compilers and Options ===================== Some systems require unusual options for compilation or linking that the `configure' script does not know about. Run `./configure --help' for details on some of the pertinent environment variables. You can give `configure' initial values for configuration parameters by setting variables in the command line or in the environment. Here is an example: ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix *Note Defining Variables::, for more details. Compiling For Multiple Architectures ==================================== You can compile the package for more than one kind of computer at the same time, by placing the object files for each architecture in their own directory. To do this, you must use a version of `make' that supports the `VPATH' variable, such as GNU `make'. `cd' to the directory where you want the object files and executables to go and run the `configure' script. `configure' automatically checks for the source code in the directory that `configure' is in and in `..'. If you have to use a `make' that does not support the `VPATH' variable, you have to compile the package for one architecture at a time in the source code directory. After you have installed the package for one architecture, use `make distclean' before reconfiguring for another architecture. Installation Names ================== By default, `make install' will install the package's files in `/usr/local/bin', `/usr/local/man', etc. You can specify an installation prefix other than `/usr/local' by giving `configure' the option `--prefix=PATH'. You can specify separate installation prefixes for architecture-specific files and architecture-independent files. If you give `configure' the option `--exec-prefix=PATH', the package will use PATH as the prefix for installing programs and libraries. Documentation and other data files will still use the regular prefix. In addition, if you use an unusual directory layout you can give options like `--bindir=PATH' to specify different values for particular kinds of files. Run `configure --help' for a list of the directories you can set and what kinds of files go in them. If the package supports it, you can cause programs to be installed with an extra prefix or suffix on their names by giving `configure' the option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. Optional Features ================= Some packages pay attention to `--enable-FEATURE' options to `configure', where FEATURE indicates an optional part of the package. They may also pay attention to `--with-PACKAGE' options, where PACKAGE is something like `gnu-as' or `x' (for the X Window System). The `README' should mention any `--enable-' and `--with-' options that the package recognizes. For packages that use the X Window System, `configure' can usually find the X include and library files automatically, but if it doesn't, you can use the `configure' options `--x-includes=DIR' and `--x-libraries=DIR' to specify their locations. Specifying the System Type ========================== There may be some features `configure' cannot figure out automatically, but needs to determine by the type of machine the package will run on. Usually, assuming the package is built to be run on the _same_ architectures, `configure' can figure that out, but if it prints a message saying it cannot guess the machine type, give it the `--build=TYPE' option. TYPE can either be a short name for the system type, such as `sun4', or a canonical name which has the form: CPU-COMPANY-SYSTEM where SYSTEM can have one of these forms: OS KERNEL-OS See the file `config.sub' for the possible values of each field. If `config.sub' isn't included in this package, then this package doesn't need to know the machine type. If you are _building_ compiler tools for cross-compiling, you should use the `--target=TYPE' option to select the type of system they will produce code for. If you want to _use_ a cross compiler, that generates code for a platform different from the build platform, you should specify the "host" platform (i.e., that on which the generated programs will eventually be run) with `--host=TYPE'. Sharing Defaults ================ If you want to set default values for `configure' scripts to share, you can create a site shell script called `config.site' that gives default values for variables like `CC', `cache_file', and `prefix'. `configure' looks for `PREFIX/share/config.site' if it exists, then `PREFIX/etc/config.site' if it exists. Or, you can set the `CONFIG_SITE' environment variable to the location of the site script. A warning: not all `configure' scripts look for a site script. Defining Variables ================== Variables not defined in a site shell script can be set in the environment passed to `configure'. However, some packages may run configure again during the build, and the customized values of these variables may be lost. In order to avoid this problem, you should set them in the `configure' command line, using `VAR=value'. For example: ./configure CC=/usr/local2/bin/gcc will cause the specified gcc to be used as the C compiler (unless it is overridden in the site shell script). `configure' Invocation ====================== `configure' recognizes the following options to control how it operates. `--help' `-h' Print a summary of the options to `configure', and exit. `--version' `-V' Print the version of Autoconf used to generate the `configure' script, and exit. `--cache-file=FILE' Enable the cache: use and save the results of the tests in FILE, traditionally `config.cache'. FILE defaults to `/dev/null' to disable caching. `--config-cache' `-C' Alias for `--cache-file=config.cache'. `--quiet' `--silent' `-q' Do not print messages saying which checks are being made. To suppress all normal output, redirect it to `/dev/null' (any error messages will still be shown). `--srcdir=DIR' Look for the package's source code in directory DIR. Usually `configure' can determine that directory automatically. `configure' also accepts some other, not widely useful, options. Run `configure --help' for more details. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������gperftools-2.4/NEWS���������������������������������������������������������������������������������0000644�0000000�0000000�00000053534�12454304742�011150� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������== 10 Jan 2014 == gperftools 2.4 is out! The code is exactly same as 2.4rc. == 28 Dec 2014 == gperftools 2.4rc is out! Here are changes since 2.3: * enabled aggressive decommit option by default. It was found to significantly improve memory fragmentation with negligible impact on performance. (Thanks to investigation work performed by Adhemerval Zanella) * added ./configure flags for tcmalloc pagesize and tcmalloc allocation alignment. Larger page sizes have been reported to improve performance occasionally. (Patch by Raphael Moreira Zinsly) * sped-up hot-path of malloc/free. By about 5% on static library and about 10% on shared library. Mainly due to more efficient checking of malloc hooks. * improved stacktrace capturing in cpu profiler (due to issue found by Arun Sharma). As part of that issue pprof's handling of cpu profiles was also improved. == 7 Dec 2014 == gperftools 2.3 is out! Here are changes since 2.3rc: * (issue 658) correctly close socketpair fds on failure (patch by glider) * libunwind integration can be disabled at configure time (patch by Raphael Moreira Zinsly) * libunwind integration is disabled by default for ppc64 (patch by Raphael Moreira Zinsly) * libunwind integration is force-disabled for OSX. It was not used by default anyways. Fixes compilation issue I saw. == 2 Nov 2014 == gperftools 2.3rc is out! Most small improvements in this release were made to pprof tool. New experimental Linux-only (for now) cpu profiling mode is a notable big improvement. Here are notable changes since 2.2.1: * (issue-631) fixed debugallocation miscompilation on mmap-less platforms (courtesy of user iamxujian) * (issue-630) reference to wrong PROFILE (vs. correct CPUPROFILE) environment variable was fixed (courtesy of WenSheng He) * pprof now has option to display stack traces in output for heap checker (courtesy of Michael Pasieka) * (issue-636) pprof web command now works on mingw * (issue-635) pprof now handles library paths that contain spaces (courtesy of user mich...@sebesbefut.com) * (issue-637) pprof now has an option to not strip template arguments (patch by jiakai) * (issue-644) possible out-of-bounds access in GetenvBeforeMain was fixed (thanks to user abyss.7) * (issue-641) pprof now has an option --show_addresses (thanks to user yurivict). New option prints instruction address in addition to function name in stack traces * (issue-646) pprof now works around some issues of addr2line reportedly when DWARF v4 format is used (patch by Adam McNeeney) * (issue-645) heap profiler exit message now includes remaining memory allocated info (patch by user yurivict) * pprof code that finds location of /proc//maps in cpu profile files is now fixed (patch by Ricardo M. Correia) * (issue-654) pprof now handles "split text segments" feature of Chromium for Android. (patch by simonb) * (issue-655) potential deadlock on windows caused by early call to getenv in malloc initialization code was fixed (bug reported and fix proposed by user zndmitry) * incorrect detection of arm 6zk instruction set support (-mcpu=arm1176jzf-s) was fixed. (Reported by pedronavf on old issue-493) * new cpu profiling mode on Linux is now implemented. It sets up separate profiling timers for separate threads. Which improves accuracy of profiling on Linux a lot. It is off by default. And is enabled if both librt.f is loaded and CPUPROFILE_PER_THREAD_TIMERS environment variable is set. But note that all threads need to be registered via ProfilerRegisterThread. == 21 Jun 2014 == gperftools 2.2.1 is out! Here's list of fixes: * issue-626 was closed. Which fixes initialization statically linked tcmalloc. * issue 628 was closed. It adds missing header file into source tarball. This fixes for compilation on PPC Linux. == 3 May 2014 == gperftools 2.2 is out! Here are notable changes since 2.2rc: * issue 620 (crash on windows when c runtime dll is reloaded) was fixed == 19 Apr 2014 == gperftools 2.2rc is out! Here are notable changes since 2.1: * a number of fixes for a number compilers and platforms. Notably Visual Studio 2013, recent mingw with c++ threads and some OSX fixes. * we now have mips and mips64 support! (courtesy of Jovan Zelincevic, Jean Lee, user xiaoyur347 and others) * we now have aarch64 (aka arm64) support! (contributed by Riku Voipio) * there's now support for ppc64-le (by Raphael Moreira Zinsly and Adhemerval Zanella) * there's now some support of uclibc (contributed by user xiaoyur347) * google/ headers will now give you deprecation warning. They are deprecated since 2.0 * there's now new api: tc_malloc_skip_new_handler (ported from chromium fork) * issue-557: added support for dumping heap profile via signal (by Jean Lee) * issue-567: Petr Hosek contributed SysAllocator support for windows * Joonsoo Kim contributed several speedups for central freelist code * TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES environment variable now works * configure scripts are now using AM_MAINTAINER_MODE. It'll only affect folks who modify source from .tar.gz and want automake to automatically rebuild Makefile-s. See automake documentation for that. * issue-586: detect main executable even if PIE is active (based on patch by user themastermind1). Notably, it fixes profiler use with ruby. * there is now support for switching backtrace capturing method at runtime (via TCMALLOC_STACKTRACE_METHOD and TCMALLOC_STACKTRACE_METHOD_VERBOSE environment variables) * there is new backtrace capturing method using -finstrument-functions prologues contributed by user xiaoyur347 * few cases of crashes/deadlocks in profiler were addressed. See (famous) issue-66, issue-547 and issue-579. * issue-464 (memory corruption in debugalloc's realloc after memallign) is now fixed * tcmalloc is now able to release memory back to OS on windows (issue-489). The code was ported from chromium fork (by a number of authors). * Together with issue-489 we ported chromium's "aggressive decommit" mode. In this mode (settable via malloc extension and via environment variable TCMALLOC_AGGRESSIVE_DECOMMIT), free pages are returned back to OS immediately. * MallocExtension::instance() is now faster (based on patch by Adhemerval Zanella) * issue-610 (hangs on windows in multibyte locales) is now fixed The following people helped with ideas or patches (based on git log, some contributions purely in bugtracker might be missing): Andrew C. Morrow, yurivict, Wang YanQing, Thomas Klausner, davide.italiano@10gen.com, Dai MIKURUBE, Joon-Sung Um, Jovan Zelincevic, Jean Lee, Petr Hosek, Ben Avison, drussel, Joonsoo Kim, Hannes Weisbach, xiaoyur347, Riku Voipio, Adhemerval Zanella, Raphael Moreira Zinsly == 30 July 2013 == gperftools 2.1 is out! Just few fixes where merged after rc. Most notably: * Some fixes for debug allocation on POWER/Linux == 20 July 2013 == gperftools 2.1rc is out! As a result of more than a year of contributions we're ready for 2.1 release. But before making that step I'd like to create RC and make sure people have chance to test it. Here are notable changes since 2.0: * fixes for building on newer platforms. Notably, there's now initial support for x32 ABI (--enable-minimal only at this time)) * new getNumericProperty stats for cache sizes * added HEAP_PROFILER_TIME_INTERVAL variable (see documentation) * added environment variable to control heap size (TCMALLOC_HEAP_LIMIT_MB) * added environment variable to disable release of memory back to OS (TCMALLOC_DISABLE_MEMORY_RELEASE) * cpu profiler can now be switched on and off by sending it a signal (specified in CPUPROFILESIGNAL) * (issue 491) fixed race-ful spinlock wake-ups * (issue 496) added some support for fork-ing of process that is using tcmalloc * (issue 368) improved memory fragmentation when large chunks of memory are allocated/freed == 03 February 2012 == I've just released gperftools 2.0 The `google-perftools` project has been renamed to `gperftools`. I (csilvers) am stepping down as maintainer, to be replaced by David Chappelle. Welcome to the team, David! David has been an an active contributor to perftools in the past -- in fact, he's the only person other than me that already has commit status. I am pleased to have him take over as maintainer. I have both renamed the project (the Google Code site renamed a few weeks ago), and bumped the major version number up to 2, to reflect the new community ownership of the project. Almost all the [http://gperftools.googlecode.com/svn/tags/gperftools-2.0/ChangeLog changes] are related to the renaming. The main functional change from google-perftools 1.10 is that I've renamed the `google/` include-directory to be `gperftools/` instead. New code should `#include `/etc. (Most users of perftools don't need any perftools-specific includes at all, so this is mostly directed to "power users.") I've kept the old names around as forwarding headers to the new, so `#include ` will continue to work. (The other functional change which I snuck in is getting rid of some bash-isms in one of the unittest driver scripts, so it could run on Solaris.) Note that some internal names still contain the text `google`, such as the `google_malloc` internal linker section. I think that's a trickier transition, and can happen in a future release (if at all). === 31 January 2012 === I've just released perftools 1.10 There is an API-incompatible change: several of the methods in the `MallocExtension` class have changed from taking a `void*` to taking a `const void*`. You should not be affected by this API change unless you've written your own custom malloc extension that derives from `MallocExtension`, but since it is a user-visible change, I have upped the `.so` version number for this release. This release focuses on improvements to linux-syscall-support.h, including ARM and PPC fixups and general cleanups. I hope this will magically fix an array of bugs people have been seeing. There is also exciting news on the porting front, with support for patching win64 assembly contributed by IBM Canada! This is an important step -- perhaps the most difficult -- to getting perftools to work on 64-bit windows using the patching technique (it doesn't affect the libc-modification technique). `premable_patcher_test` has been added to help test these changes; it is meant to compile under x86_64, and won't work under win32. For the full list of changes, including improved `HEAP_PROFILE_MMAP` support, see the [http://gperftools.googlecode.com/svn/tags/google-perftools-1.10/ChangeLog ChangeLog]. === 24 January 2011 === The `google-perftools` Google Code page has been renamed to `gperftools`, in preparation for the project being renamed to `gperftools`. In the coming weeks, I'll be stepping down as maintainer for the perftools project, and as part of that Google is relinquishing ownership of the project; it will now be entirely community run. The name change reflects that shift. The 'g' in 'gperftools' stands for 'great'. :-) === 23 December 2011 === I've just released perftools 1.9.1 I missed including a file in the tarball, that is needed to compile on ARM. If you are not compiling on ARM, or have successfully compiled perftools 1.9, there is no need to upgrade. === 22 December 2011 === I've just released perftools 1.9 This change has a slew of improvements, from better ARM and freebsd support, to improved performance by moving some code outside of locks, to better pprof reporting of code with overloaded functions. The full list of changes is in the [http://google-perftools.googlecode.com/svn/tags/google-perftools-1.9/ChangeLog ChangeLog]. === 26 August 2011 === I've just released perftools 1.8.3 The star-crossed 1.8 series continues; in 1.8.1, I had accidentally removed some code that was needed for FreeBSD. (Without this code many apps would crash at startup.) This release re-adds that code. If you are not on FreeBSD, or are using FreeBSD with perftools 1.8 or earlier, there is no need to upgrade. === 11 August 2011 === I've just released perftools 1.8.2 I was incorrectly calculating the patch-level in the configuration step, meaning the TC_VERSION_PATCH #define in tcmalloc.h was wrong. Since the testing framework checks for this, it was failing. Now it should work again. This time, I was careful to re-run my tests after upping the version number. :-) If you don't care about the TC_VERSION_PATCH #define, there's no reason to upgrae. === 26 July 2011 === I've just released perftools 1.8.1 I was missing an #include that caused the build to break under some compilers, especially newer gcc's, that wanted it. This only affects people who build from source, so only the .tar.gz file is updated from perftools 1.8. If you didn't have any problems compiling perftools 1.8, there's no reason to upgrade. === 15 July 2011 === I've just released perftools 1.8 Of the many changes in this release, a good number pertain to porting. I've revamped OS X support to use the malloc-zone framework; it should now Just Work to link in tcmalloc, without needing `DYLD_FORCE_FLAT_NAMESPACE` or the like. (This is a pretty major change, so please feel free to report feedback at google-perftools@googlegroups.com.) 64-bit Windows support is also improved, as is ARM support, and the hooks are in place to improve FreeBSD support as well. On the other hand, I'm seeing hanging tests on Cygwin. I see the same hanging even with (the old) perftools 1.7, so I'm guessing this is either a problem specific to my Cygwin installation, or nobody is trying to use perftools under Cygwin. If you can reproduce the problem, and even better have a solution, you can report it at google-perftools@googlegroups.com. Internal changes include several performance and space-saving tweaks. One is user-visible (but in "stealth mode", and otherwise undocumented): you can compile with `-DTCMALLOC_SMALL_BUT_SLOW`. In this mode, tcmalloc will use less memory overhead, at the cost of running (likely not noticeably) slower. There are many other changes as well, too numerous to recount here, but present in the [http://google-perftools.googlecode.com/svn/tags/google-perftools-1.8/ChangeLog ChangeLog]. === 7 February 2011 === Thanks to endlessr..., who [http://code.google.com/p/google-perftools/issues/detail?id=307 identified] why some tests were failing under MSVC 10 in release mode. It does not look like these failures point toward any problem with tcmalloc itself; rather, the problem is with the test, which made some assumptions that broke under the some aggressive optimizations used in MSVC 10. I'll fix the test, but in the meantime, feel free to use perftools even when compiled under MSVC 10. === 4 February 2011 === I've just released perftools 1.7 I apologize for the delay since the last release; so many great new patches and bugfixes kept coming in (and are still coming in; I also apologize to those folks who have to slip until the next release). I picked this arbitrary time to make a cut. Among the many new features in this release is a multi-megabyte reduction in the amount of tcmalloc overhead uder x86_64, improved performance in the case of contention, and many many bugfixes, especially architecture-specific bugfixes. See the [http://google-perftools.googlecode.com/svn/tags/google-perftools-1.7/ChangeLog ChangeLog] for full details. One architecture-specific change of note is added comments in the [http://google-perftools.googlecode.com/svn/tags/perftools-1.7/README README] for using tcmalloc under OS X. I'm trying to get my head around the exact behavior of the OS X linker, and hope to have more improvements for the next release, but I hope these notes help folks who have been having trouble with tcmalloc on OS X. *Windows users*: I've heard reports that some unittests fail on Windows when compiled with MSVC 10 in Release mode. All tests pass in Debug mode. I've not heard of any problems with earlier versions of MSVC. I don't know if this is a problem with the runtime patching (so the static patching discussed in README_windows.txt will still work), a problem with perftools more generally, or a bug in MSVC 10. Anyone with windows expertise that can debug this, I'd be glad to hear from! === 5 August 2010 === I've just released perftools 1.6 This version also has a large number of minor changes, including support for `malloc_usable_size()` as a glibc-compatible alias to `malloc_size()`, the addition of SVG-based output to `pprof`, and experimental support for tcmalloc large pages, which may speed up tcmalloc at the cost of greater memory use. To use tcmalloc large pages, see the [http://google-perftools.googlecode.com/svn/tags/perftools-1.6/INSTALL INSTALL file]; for all changes, see the [http://google-perftools.googlecode.com/svn/tags/perftools-1.6/ChangeLog ChangeLog]. OS X NOTE: improvements in the profiler unittest have turned up an OS X issue: in multithreaded programs, it seems that OS X often delivers the profiling signal (from sigitimer()) to the main thread, even when it's sleeping, rather than spawned threads that are doing actual work. If anyone knows details of how OS X handles SIGPROF events (from setitimer) in threaded programs, and has insight into this problem, please send mail to google-perftools@googlegroups.com. To see if you're affected by this, look for profiling time that pprof attributes to `___semwait_signal`. This is work being done in other threads, that is being attributed to sleeping-time in the main thread. === 20 January 2010 === I've just released perftools 1.5 This version has a slew of changes, leading to somewhat faster performance and improvements in portability. It adds features like `ITIMER_REAL` support to the cpu profiler, and `tc_set_new_mode` to mimic the windows function of the same name. Full details are in the [http://google-perftools.googlecode.com/svn/tags/perftools-1.5/ChangeLog ChangeLog]. === 11 September 2009 === I've just released perftools 1.4 The major change this release is the addition of a debugging malloc library! If you link with `libtcmalloc_debug.so` instead of `libtcmalloc.so` (and likewise for the `minimal` variants) you'll get a debugging malloc, which will catch double-frees, writes to freed data, `free`/`delete` and `delete`/`delete[]` mismatches, and even (optionally) writes past the end of an allocated block. We plan to do more with this library in the future, including supporting it on Windows, and adding the ability to use the debugging library with your default malloc in addition to using it with tcmalloc. There are also the usual complement of bug fixes, documented in the ChangeLog, and a few minor user-tunable knobs added to components like the system allocator. === 9 June 2009 === I've just released perftools 1.3 Like 1.2, this has a variety of bug fixes, especially related to the Windows build. One of my bugfixes is to undo the weird `ld -r` fix to `.a` files that I introduced in perftools 1.2: it caused problems on too many platforms. I've reverted back to normal `.a` files. To work around the original problem that prompted the `ld -r` fix, I now provide `libtcmalloc_and_profiler.a`, for folks who want to link in both. The most interesting API change is that I now not only override `malloc`/`free`/etc, I also expose them via a unique set of symbols: `tc_malloc`/`tc_free`/etc. This enables clients to write their own memory wrappers that use tcmalloc: {{{ void* malloc(size_t size) { void* r = tc_malloc(size); Log(r); return r; } }}} === 17 April 2009 === I've just released perftools 1.2. This is mostly a bugfix release. The major change is internal: I have a new system for creating packages, which allows me to create 64-bit packages. (I still don't do that for perftools, because there is still no great 64-bit solution, with libunwind still giving problems and --disable-frame-pointers not practical in every environment.) Another interesting change involves Windows: a [http://code.google.com/p/google-perftools/issues/detail?id=126 new patch] allows users to choose to override malloc/free/etc on Windows rather than patching, as is done now. This can be used to create custom CRTs. My fix for this [http://groups.google.com/group/google-perftools/browse_thread/thread/1ff9b50043090d9d/a59210c4206f2060?lnk=gst&q=dynamic#a59210c4206f2060 bug involving static linking] ended up being to make libtcmalloc.a and libperftools.a a big .o file, rather than a true `ar` archive. This should not yield any problems in practice -- in fact, it should be better, since the heap profiler, leak checker, and cpu profiler will now all work even with the static libraries -- but if you find it does, please file a bug report. Finally, the profile_handler_unittest provided in the perftools testsuite (new in this release) is failing on FreeBSD. The end-to-end test that uses the profile-handler is passing, so I suspect the problem may be with the test, not the perftools code itself. However, I do not know enough about how itimers work on FreeBSD to be able to debug it. If you can figure it out, please let me know! === 11 March 2009 === I've just released perftools 1.1! It has many changes since perftools 1.0 including * Faster performance due to dynamically sized thread caches * Better heap-sampling for more realistic profiles * Improved support on Windows (MSVC 7.1 and cygwin) * Better stacktraces in linux (using VDSO) * Many bug fixes and feature requests Note: if you use the CPU-profiler with applications that fork without doing an exec right afterwards, please see the README. Recent testing has shown that profiles are unreliable in that case. The problem has existed since the first release of perftools. We expect to have a fix for perftools 1.2. For more details, see [http://code.google.com/p/google-perftools/issues/detail?id=105 issue 105]. Everyone who uses perftools 1.0 is encouraged to upgrade to perftools 1.1. If you see any problems with the new release, please file a bug report at http://code.google.com/p/google-perftools/issues/list. Enjoy! ��������������������������������������������������������������������������������������������������������������������������������������������������������������������gperftools-2.4/README�������������������������������������������������������������������������������0000644�0000000�0000000�00000024744�12440704174�011330� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������IMPORTANT NOTE FOR 64-BIT USERS ------------------------------- There are known issues with some perftools functionality on x86_64 systems. See 64-BIT ISSUES, below. TCMALLOC -------- Just link in -ltcmalloc or -ltcmalloc_minimal to get the advantages of tcmalloc -- a replacement for malloc and new. See below for some environment variables you can use with tcmalloc, as well. tcmalloc functionality is available on all systems we've tested; see INSTALL for more details. See README_windows.txt for instructions on using tcmalloc on Windows. NOTE: When compiling with programs with gcc, that you plan to link with libtcmalloc, it's safest to pass in the flags -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free when compiling. gcc makes some optimizations assuming it is using its own, built-in malloc; that assumption obviously isn't true with tcmalloc. In practice, we haven't seen any problems with this, but the expected risk is highest for users who register their own malloc hooks with tcmalloc (using gperftools/malloc_hook.h). The risk is lowest for folks who use tcmalloc_minimal (or, of course, who pass in the above flags :-) ). HEAP PROFILER ------------- See doc/heap-profiler.html for information about how to use tcmalloc's heap profiler and analyze its output. As a quick-start, do the following after installing this package: 1) Link your executable with -ltcmalloc 2) Run your executable with the HEAPPROFILE environment var set: $ HEAPPROFILE=/tmp/heapprof [binary args] 3) Run pprof to analyze the heap usage $ pprof /tmp/heapprof.0045.heap # run 'ls' to see options $ pprof --gv /tmp/heapprof.0045.heap You can also use LD_PRELOAD to heap-profile an executable that you didn't compile. There are other environment variables, besides HEAPPROFILE, you can set to adjust the heap-profiler behavior; c.f. "ENVIRONMENT VARIABLES" below. The heap profiler is available on all unix-based systems we've tested; see INSTALL for more details. It is not currently available on Windows. HEAP CHECKER ------------ See doc/heap-checker.html for information about how to use tcmalloc's heap checker. In order to catch all heap leaks, tcmalloc must be linked *last* into your executable. The heap checker may mischaracterize some memory accesses in libraries listed after it on the link line. For instance, it may report these libraries as leaking memory when they're not. (See the source code for more details.) Here's a quick-start for how to use: As a quick-start, do the following after installing this package: 1) Link your executable with -ltcmalloc 2) Run your executable with the HEAPCHECK environment var set: $ HEAPCHECK=1 [binary args] Other values for HEAPCHECK: normal (equivalent to "1"), strict, draconian You can also use LD_PRELOAD to heap-check an executable that you didn't compile. The heap checker is only available on Linux at this time; see INSTALL for more details. CPU PROFILER ------------ See doc/cpu-profiler.html for information about how to use the CPU profiler and analyze its output. As a quick-start, do the following after installing this package: 1) Link your executable with -lprofiler 2) Run your executable with the CPUPROFILE environment var set: $ CPUPROFILE=/tmp/prof.out [binary args] 3) Run pprof to analyze the CPU usage $ pprof /tmp/prof.out # -pg-like text output $ pprof --gv /tmp/prof.out # really cool graphical output There are other environment variables, besides CPUPROFILE, you can set to adjust the cpu-profiler behavior; cf "ENVIRONMENT VARIABLES" below. The CPU profiler is available on all unix-based systems we've tested; see INSTALL for more details. It is not currently available on Windows. NOTE: CPU profiling doesn't work after fork (unless you immediately do an exec()-like call afterwards). Furthermore, if you do fork, and the child calls exit(), it may corrupt the profile data. You can use _exit() to work around this. We hope to have a fix for both problems in the next release of perftools (hopefully perftools 1.2). EVERYTHING IN ONE ----------------- If you want the CPU profiler, heap profiler, and heap leak-checker to all be available for your application, you can do: gcc -o myapp ... -lprofiler -ltcmalloc However, if you have a reason to use the static versions of the library, this two-library linking won't work: gcc -o myapp ... /usr/lib/libprofiler.a /usr/lib/libtcmalloc.a # errors! Instead, use the special libtcmalloc_and_profiler library, which we make for just this purpose: gcc -o myapp ... /usr/lib/libtcmalloc_and_profiler.a CONFIGURATION OPTIONS --------------------- For advanced users, there are several flags you can pass to './configure' that tweak tcmalloc performace. (These are in addition to the environment variables you can set at runtime to affect tcmalloc, described below.) See the INSTALL file for details. ENVIRONMENT VARIABLES --------------------- The cpu profiler, heap checker, and heap profiler will lie dormant, using no memory or CPU, until you turn them on. (Thus, there's no harm in linking -lprofiler into every application, and also -ltcmalloc assuming you're ok using the non-libc malloc library.) The easiest way to turn them on is by setting the appropriate environment variables. We have several variables that let you enable/disable features as well as tweak parameters. Here are some of the most important variables: HEAPPROFILE=
 -- turns on heap profiling and dumps data using this prefix
HEAPCHECK=  -- turns on heap checking with strictness 'type'
CPUPROFILE= -- turns on cpu profiling and dumps data to this file.
PROFILESELECTED=1 -- if set, cpu-profiler will only profile regions of code
                     surrounded with ProfilerEnable()/ProfilerDisable().
CPUPROFILE_FREQUENCY=x-- how many interrupts/second the cpu-profiler samples.

TCMALLOC_DEBUG= -- the higher level, the more messages malloc emits
MALLOCSTATS=    -- prints memory-use stats at program-exit

For a full list of variables, see the documentation pages:
   doc/cpuprofile.html
   doc/heapprofile.html
   doc/heap_checker.html


COMPILING ON NON-LINUX SYSTEMS
------------------------------

Perftools was developed and tested on x86 Linux systems, and it works
in its full generality only on those systems.  However, we've
successfully ported much of the tcmalloc library to FreeBSD, Solaris
x86, and Darwin (Mac OS X) x86 and ppc; and we've ported the basic
functionality in tcmalloc_minimal to Windows.  See INSTALL for details.
See README_windows.txt for details on the Windows port.


PERFORMANCE
-----------

If you're interested in some third-party comparisons of tcmalloc to
other malloc libraries, here are a few web pages that have been
brought to our attention.  The first discusses the effect of using
various malloc libraries on OpenLDAP.  The second compares tcmalloc to
win32's malloc.
  http://www.highlandsun.com/hyc/malloc/
  http://gaiacrtn.free.fr/articles/win32perftools.html

It's possible to build tcmalloc in a way that trades off faster
performance (particularly for deletes) at the cost of more memory
fragmentation (that is, more unusable memory on your system).  See the
INSTALL file for details.


OLD SYSTEM ISSUES
-----------------

When compiling perftools on some old systems, like RedHat 8, you may
get an error like this:
    ___tls_get_addr: symbol not found

This means that you have a system where some parts are updated enough
to support Thread Local Storage, but others are not.  The perftools
configure script can't always detect this kind of case, leading to
that error.  To fix it, just comment out (or delete) the line
   #define HAVE_TLS 1
in your config.h file before building.


64-BIT ISSUES
-------------

There are two issues that can cause program hangs or crashes on x86_64
64-bit systems, which use the libunwind library to get stack-traces.
Neither issue should affect the core tcmalloc library; they both
affect the perftools tools such as cpu-profiler, heap-checker, and
heap-profiler.

1) Some libc's -- at least glibc 2.4 on x86_64 -- have a bug where the
libc function dl_iterate_phdr() acquires its locks in the wrong
order.  This bug should not affect tcmalloc, but may cause occasional
deadlock with the cpu-profiler, heap-profiler, and heap-checker.
Its likeliness increases the more dlopen() commands an executable has.
Most executables don't have any, though several library routines like
getgrgid() call dlopen() behind the scenes.

2) On x86-64 64-bit systems, while tcmalloc itself works fine, the
cpu-profiler tool is unreliable: it will sometimes work, but sometimes
cause a segfault.  I'll explain the problem first, and then some
workarounds.

Note that this only affects the cpu-profiler, which is a
gperftools feature you must turn on manually by setting the
CPUPROFILE environment variable.  If you do not turn on cpu-profiling,
you shouldn't see any crashes due to perftools.

The gory details: The underlying problem is in the backtrace()
function, which is a built-in function in libc.
Backtracing is fairly straightforward in the normal case, but can run
into problems when having to backtrace across a signal frame.
Unfortunately, the cpu-profiler uses signals in order to register a
profiling event, so every backtrace that the profiler does crosses a
signal frame.

In our experience, the only time there is trouble is when the signal
fires in the middle of pthread_mutex_lock.  pthread_mutex_lock is
called quite a bit from system libraries, particularly at program
startup and when creating a new thread.

The solution: The dwarf debugging format has support for 'cfi
annotations', which make it easy to recognize a signal frame.  Some OS
distributions, such as Fedora and gentoo 2007.0, already have added
cfi annotations to their libc.  A future version of libunwind should
recognize these annotations; these systems should not see any
crashses.

Workarounds: If you see problems with crashes when running the
cpu-profiler, consider inserting ProfilerStart()/ProfilerStop() into
your code, rather than setting CPUPROFILE.  This will profile only
those sections of the codebase.  Though we haven't done much testing,
in theory this should reduce the chance of crashes by limiting the
signal generation to only a small part of the codebase.  Ideally, you
would not use ProfilerStart()/ProfilerStop() around code that spawns
new threads, or is otherwise likely to cause a call to
pthread_mutex_lock!

---
17 May 2011
gperftools-2.4/AUTHORS0000644000000000000000000000004312372001603011471 00000000000000google-perftools@googlegroups.com

gperftools-2.4/ChangeLog0000644000000000000000000010325612372001603012205 00000000000000Fri Feb 03 15:40:45 2012  Google Inc. 

	* gperftools: version 2.0
	* Renamed the project from google-perftools to gperftools (csilvers)
	* Renamed the .deb/.rpm packagse from google-perftools to gperftools too
	* Renamed include directory from google/ to gperftools/ (csilvers)
	* Changed the 'official' perftools email in setup.py/etc
	* Renamed google-perftools.sln to gperftools.sln
	* PORTING: Removed bash-isms & grep -q in heap-checker-death_unittest.sh
	* Changed copyright text to reflect Google's relinquished ownership

Tue Jan 31 10:43:50 2012    Google Inc. 

	* google-perftools: version 1.10 release
	* PORTING: Support for patching assembly on win x86_64! (scott.fr...)
	* PORTING: Work around atexit-execution-order bug on freebsd (csilvers)
	* PORTING: Patch _calloc_crt for windows (roger orr)
	* PORTING: Add C++11 compatibility method for stl allocator (jdennett)
	* PORTING: use MADV_FREE, not MADV_DONTNEED, on freebsd (csilvers)
	* PORTING: Don't use SYS_open when not supported on solaris (csilvers)
	* PORTING: Do not assume uname() returns 0 on success (csilvers)
	* LSS: Improved ARM support in linux-syscall-support (dougkwan)
	* LSS: Get rid of unused syscalls in linux-syscall-support (csilvers)
	* LSS: Fix broken mmap wrapping for ppc (markus)
	* LSS: Emit .cfi_adjust_cfa_offset when appropriate (ppluzhnikov)
	* LSS: Be more accurate in register use in __asm__ (markus)
	* LSS: Fix __asm__ calls to compile under clang (chandlerc)
	* LSS: Fix ARM inline assembly bug around r7 and swi (lcwu)
	* No longer log when an allocator fails (csilvers)
	* void* -> const void* for MallocExtension methods (llib)
	* Improve HEAP_PROFILE_MMAP and fix bugs with it (dmikurube)
	* Replace int-based abs with more correct fabs in a test (pmurin)

Thu Dec 22 16:22:45 2011    Google Inc. 

	* google-perftools: version 1.9 release
	* Lightweight check for double-frees (blount)
	* BUGFIX: Fix pprof to exit properly if run with no args (dagitses)
	* Suggest ASan as a way to diagnose buggy code (ppluzhnikov)
	* Get rid of unused CACHELINE_SIZE (csilvers)
	* Replace atexit() calls with global dtors; helps freebsd (csilvers)
	* Disable heap-checker under AddressSanitizer (kcc)
	* Fix bug in powerpc stacktracing (ppluzhnikov)
	* PERF: Use exponential backoff waiting for spinlocks (m3b)
	* Fix 64-bit nm on 32-bit binaries in pprof (csilvers)
	* Add ProfileHandlerDisallowForever (rsc)
	* BUGFIX: Shell escape when forking in pprof (csilvers)
	* No longer combine overloaded functions in pprof (csilvers)
	* Fix address-normalizing bug in pprof (csilvers)
	* More consistently call abort() instead of exit() on failure (csilvers)
	* Allow NoGlobalLeaks to be safely called more than once (csilvers)
	* PORTING/BUGFIX: Fix ARM cycleclock to use volatile asm (dougkwan)
	* PORTING: 64-bit atomic ops for ARMv7 (dougkwan)
	* PORTING: Implement stacktrace for ARM (dougkwan)
	* PORTING: Fix malloc_hook_mmap_linux for ARM (dougkwan)
	* PORTING: Update linux_syscall_support.h for ARM/etc (evannier, sanek)
	* PORTING: Fix freebsd to work on x86_64 (chapp...@gmail.com)
	* PORTING: Added additional SYS_mmap fixes for FreeBSD (chappedm)
	* PORTING: Allow us to compile on OS X 10.6 and run on 10.5 (raltherr)
	* PORTING: Check for mingw compilers that *do* define timespec
	* PORTING: Add "support" for MIPS cycletimer
	* PORTING: Fix fallback cycle-timer to work with Now (dougkwan)
	* PERF: Move stack trace collecting out of the mutex (taylorc)
	* PERF: Get the deallocation stack trace outside the mutex (sean)
	* Make PageHeap dynamically allocated for leak checks (maxim)
	* BUGFIX: Fix probing of nm -f behavior in pprof (dpeng)
	* BUGFIX: Fix a race with the CentralFreeList lock before main (sanjay)
	* Support /pprof/censusprofile url arguments (rajatjain)
	* Change IgnoreObject to return its argument (nlewycky)
	* Update malloc-hook files to support more CPUs
	* BUGFIX: write our own strstr to avoid libc problems (csilvers)
	* Use simple callgrind compression facility in pprof
	* Print an error message when we can't run pprof to symbolize (csilvers)
	* Die in configure when g++ is't installed (csilvers)
	* DOC: Beef up the documentation a bit about using libunwind (csilvers)

Fri Aug 26 13:29:25 2011    Google Inc. 

	* google-perftools: version 1.8.3 release
	* Added back the 'pthreads unsafe early' #define, needed for FreeBSD

Thu Aug 11 15:01:47 2011    Google Inc. 

	* google-perftools: version 1.8.2 release
	* Fixed calculation of patchlevel, 'make check' should all pass again

Tue Jul 26 20:57:51 2011    Google Inc. 

	* google-perftools: version 1.8.1 release
	* Added an #include to fix compile breakage on latest gcc's
	* Removed an extra , in the configure.ac script

Fri Jul 15 16:10:51 2011    Google Inc. 

	* google-perftools: version 1.8 release
	* PORTING: (Disabled) support for patching mmap on freebsd (chapp...)
	* PORTING: Support volatile __malloc_hook for glibc 2.14 (csilvers)
	* PORTING: Use _asm rdtsc and __rdtsc to get cycleclock in windows (koda)
	* PORTING: Fix fd vs. HANDLE compiler error on cygwin (csilvers)
	* PORTING: Do not test memalign or double-linking on OS X (csilvers)
	* PORTING: Actually enable TLS on windows (jontra)
	* PORTING: Some work to compile under Native Client (krasin)
	* PORTING: deal with pthread_once w/o -pthread on freebsd (csilvers)
	* Rearrange libc-overriding to make it easier to port (csilvers)
	* Display source locations in pprof disassembly (sanjay)
	* BUGFIX: Actually initialize allocator name (mec)
	* BUGFIX: Keep track of 'overhead' bytes in malloc reporting (csilvers)
	* Allow ignoring one object twice in the leak checker (glider)
	* BUGFIX: top10 in pprof should print 10 lines, not 11 (rsc)
	* Refactor vdso source files (tipp)
	* Some documentation cleanups
	* Document MAX_TOTAL_THREAD_CACHE_SIZE <= 1Gb (nsethi)
	* Add MallocExtension::GetOwnership(ptr) (csilvers)
	* BUGFIX: We were leaving out a needed $(top_srcdir) in the Makefile
	* PORTING: Support getting argv0 on OS X
	* Add 'weblist' command to pprof: like 'list' but html (sanjay)
	* Improve source listing in pprof (sanjay)
	* Cap cache sizes to reduce fragmentation (ruemmler)
	* Improve performance by capping or increasing sizes (ruemmler)
	* Add M{,un}mapReplacmenet hooks into MallocHook (ribrdb)
	* Refactored system allocator logic (gangren)
	* Include cleanups (csilvers)
	* Add TCMALLOC_SMALL_BUT_SLOW support (ruemmler)
	* Clarify that tcmalloc stats are MiB (robinson)
	* Remove support for non-tcmalloc debugallocation (blount)
	* Add a new test: malloc_hook_test (csilvers)
	* Change the configure script to be more crosstool-friendly (mcgrathr)
	* PORTING: leading-underscore changes to support win64 (csilvers)
	* Improve debugallocation tc_malloc_size (csilvers)
	* Extend atomicops.h and cyceclock to use ARM V6+ optimized code (sanek)
	* Change malloc-hook to use a list-like structure (llib)
	* Add flag to use MAP_PRIVATE in memfs_malloc (gangren)
	* Windows support for pprof: nul and /usr/bin/file (csilvers)
	* TESTING: add test on strdup to tcmalloc_test (csilvers)
	* Augment heap-checker to deal with no-inode maps (csilvers)
	* Count .dll/.dylib as shared libs in heap-checker (csilvers)
	* Disable sys_futex for arm; it's not always reliable (sanek)
	* PORTING: change lots of windows/port.h macros to functions
	* BUGFIX: Generate correct version# in tcmalloc.h on windows (csilvers)
	* PORTING: Some casting to make solaris happier about types (csilvers)
	* TESTING: Disable debugallocation_test in 'minimal' mode (csilvers)
	* Rewrite debugallocation to be more modular (csilvers)
	* Don't try to run the heap-checker under valgrind (ppluzhnikov)
	* BUGFIX: Make focused stat %'s relative, not absolute (sanjay)
	* BUGFIX: Don't use '//' comments in a C file (csilvers)
	* Quiet new-gcc compiler warnings via -Wno-unused-result, etc (csilvers)

Fri Feb 04 15:54:31 2011    Google Inc. 

	* google-perftools: version 1.7 release
	* Reduce page map key size under x86_64 by 4.4MB (rus)
	* Remove a flaky malloc-extension test (fdabek)
	* Improve the performance of PageHeap::New (ond..., csilvers)
	* Improve sampling_test with no-inline additions/etc (fdabek)
	* 16-byte align debug allocs (jyasskin)
	* Change FillProcSelfMaps to detect out-of-buffer-space (csilvers)
	* Document the need for sampling to use GetHeapSample (csilvers)
	* Try to read TSC frequency from tsc_freq_khs (adurbin)
	* Do better at figuring out if tests are running under gdb (ppluzhnikov)
	* Improve spinlock contention performance (ruemmler)
	* Better internal-function list for pprof's /contention (ruemmler)
	* Speed up GoogleOnce (m3b)
	* Limit number of incoming/outgoing edges in pprof (sanjay)
	* Add pprof --evince to go along with --gv (csilvers)
	* Document the various ways to get heap-profiling information (csilvers)
	* Separate out synchronization profiling routines (ruemmler)
	* Improve malloc-stats output to be more understandable (csilvers)
	* Add support for census profiler in pporf (nabeelmian)
	* Document how pprof's /symbol must support GET requests (csilvers)
	* Improve acx_pthread.m4 (ssuomi, liujisi)
	* Speed up pprof's ExtractSymbols (csilvers)
	* Ignore some known-leaky (java) libraries in the heap checker (davidyu)
	* Make kHideMask use all 64 bits in tests (ppluzhnikov)
	* Clean up pprof input-file handling (csilvers)
	* BUGFIX: Don't crash if __environ is NULL (csilvers)
	* BUGFIX: Fix totally broken debugallocation tests (csilvers)
	* BUGFIX: Fix up fake_VDSO handling for unittest (ppluzhnikov)
	* BUGFIX: Suppress all large allocs when report threshold is 0 (lexie)
	* BUGFIX: mmap2 on i386 takes an off_t, not off64_t (csilvers)
	* PORTING: Add missing PERFTOOLS_DLL_DECL (csilvers)
	* PORTING: Add stddef.h to make newer gcc's happy (csilvers)
	* PORTING: Document some tricks for working under OS X (csilvers)
	* PORTING: Don't try to check valgrind for windows (csilvers)
	* PORTING: Make array-size a var to compile under clang (chandlerc)
	* PORTING: No longer hook _aligned_malloc and _aligned_free (csilvers)
	* PORTING: Quiet some gcc warnings (csilvers)
	* PORTING: Replace %PRIxPTR with %p to be more portable (csilvers)
	* PORTING: Support systems that capitalize /proc weirdly (sanek)
	* PORTING: Treat arm3 the same as arm5t in cycletimer (csilvers)
	* PORTING: Update windows logging to not allocate memory (csilvers)
	* PORTING: avoid double-patching newer windows DLLs (roger.orr)
	* PORTING: get dynamic_annotations.c to work on windows (csilvers)
	* Add pkg-config .pc files for the 5 libraries we produce (csilvers)
	* Added proper libtool versioning, so this lib will be 0.1.0 (csilvers)
	* Moved from autoconf 2.64 to 2.65

Thu Aug  5 12:48:03 PDT 2010  Google Inc. 

	* google-perftools: version 1.6 release
	* Add tc_malloc_usable_size for compatibility with glibc (csilvers)
	* Override malloc_usable_size with tc_malloc_usable_size (csilvers)
	* Default to no automatic heap sampling in tcmalloc (csilvers)
	* Add -DTCMALLOC_LARGE_PAGES, a possibly faster tcmalloc (rus)
	* Make some functions extern "C" to avoid false ODR warnings (jyasskin)
	* pprof: Add SVG-based output (rsc)
	* pprof: Extend pprof --tools to allow per-tool configs (csilvers)
	* pprof: Improve support of 64-bit and big-endian profiles (csilvers)
	* pprof: Add interactive callgrind suport (weidenri...)
	* pprof: Improve address->function mapping a bit (dpeng)
	* Better detection of when we're running under valgrind (csilvers)
	* Better CPU-speed detection under valgrind (saito)
	* Use, and recommend, -fno-builtin-malloc when compiling (csilvers)
	* Avoid false-sharing of memory between caches (bmaurer)
	* BUGFIX: Fix heap sampling to use correct alloc size (bmauer)
	* BUGFIX: Avoid gcc 4.0.x bug by making hook-clearing atomic (csilvers)
	* BUGFIX: Avoid gcc 4.5.x optimization bug (csilvers)
	* BUGFIX: Work around deps-determining bug in libtool 1.5.26 (csilvers)
	* BUGFIX: Fixed test to use HAVE_PTHREAD, not HAVE_PTHREADS (csilvers)
	* BUGFIX: Fix tls callback behavior on windows when using wpo (wtc)
	* BUGFIX: properly align allocation sizes on Windows (antonm)
	* BUGFIX: Fix prototypes for tcmalloc/debugalloc wrt throw() (csilvers)
	* DOC: Updated heap-checker doc to match reality better (fischman)
	* DOC: Document ProfilerFlush, ProfilerStartWithOptions (csilvers)
	* DOC: Update docs for heap-profiler functions (csilvers)
	* DOC: Clean up documentation around tcmalloc.slack_bytes (fikes)
	* DOC: Renamed README.windows to README_windows.txt (csilvers)
	* DOC: Update the NEWS file to be non-empty (csilvers)
	* PORTING: Fix windows addr2line and nm with proper rc code (csilvers)
	* PORTING: Add CycleClock and atomicops support for arm 5 (sanek)
	* PORTING: Improve PC finding on cygwin and redhat 7 (csilvers)
	* PORTING: speed up function-patching under windows (csilvers)

Tue Jan 19 14:46:12 2010  Google Inc. 

	* google-perftools: version 1.5 release
	* Add tc_set_new_mode (willchan)
	* Make memalign functions + realloc respect tc_set_new_mode (willchan)
	* Add ReleaseToSystem(num_bytes) (kash)
	* Handle zero-length symbols a bit better in pprof (csilvers)
	* Prefer __environ to /proc/self/environ in cpu profiler (csilvers)
	* Add HEAP_CHECK_MAX_LEAKS flag to control #leaks to report (glider)
	* Add two new numeric pageheap properties to MallocExtension (fikes)
	* Print alloc size when mmap fails (hakon)
	* Add ITIMER_REAL support to cpu profiler (csilvers, nabeelmian)
	* Speed up symbolizer in heap-checker reporting (glider)
	* Speed up futexes with FUTEX_PRIVATE_FLAG (m3b)
	* Speed up tcmalloc but doing better span coalescing (sanjay)
	* Better support for different wget's and addr2maps in pprof (csilvres)
	* Implement a nothrow version of delete and delete[] (csilvers)
	* BUGFIX: fix a race on module_libcs[i] in windows patching (csilvers)
	* BUGFIX: Fix debugallocation to call cpp_alloc for new (willchan)
	* BUGFIX: A simple bugfix for --raw mode (mrabkin)
	* BUGFIX: Fix C shims to actually be valid C (csilvers)
	* BUGFIX: Fix recursively-unmapped-region accounting (ppluzhnikov)
	* BUGFIX: better distinguish real and fake vdso (ppluzhnikov)
	* WINDOWS: replace debugmodule with more reliable psai (andrey)
	* PORTING: Add .bundle as another shared library extension (csilvers)
	* PORTING: Fixed a typo bug in the ocnfigure PRIxx m4 macro (csilvers)
	* PORTING: Augment sysinfo to work on 64-bit OS X (csilvers)
	* PORTING: Use sys/ucontext.h to fix compiing on OS X 10.6 (csilvers)
	* PORTING: Fix sysinfo libname reporting for solaris x86 (jeffrey)
	* PORTING: Use libunwind for i386 when using --omitfp (ppluzhnikov)
	
Thu Sep 10 13:51:15 2009  Google Inc. 

	* google-perftools: version 1.4 release
	* Add debugallocation library, to catch memory leaks, stomping, etc
	* Add --raw mode to allow for delayed processing of pprof files
	* Use less memory when reading CPU profiles
	* New environment variables to control kernel-allocs (sbrk, memfs, etc)
	* Add MarkThreadBusy(): performance improvement
	* Remove static thread-cache-size code; all is dynamic now
	* Add new HiddenPointer class to heap checker
	* BUGFIX: pvalloc(0) allocates now (found by new debugalloc library)
	* BUGFIX: valloc test (not implementation) no longer overruns memory
	* BUGFIX: GetHeapProfile no longer deadlocks
	* BUGFIX: Support unmapping memory regions before main
	* BUGFIX: Fix some malloc-stats formatting
	* BUGFIX: Don't crash as often when freeing libc-allocated memory
	* BUGFIX: Deal better with incorrect PPROF_PATH when symbolizing
	* BUGFIX: weaken new/delete/etc in addition to malloc/free/etc
	* BUGFIX: Fix return value of GetAllocatedSize
	* PORTING: Fix mmap-#define problem on some 64-bit systems
	* PORTING: Call ranlib again (some OS X versions need it)
	* PORTING: Fix a leak when building with LLVM
	* PORTING: Remove some unneeded bash-ishs from testing scripts
	* WINDOWS: Support library unloading as well as loading
	* WINDOWS/BUGFIX: Set page to 'xrw' instead of 'rw' when patching
	
Tue Jun  9 18:19:06 2009  Google Inc. 

	* google-perftools: version 1.3 release
	* Provide our own name for memory functions: tc_malloc, etc (csilvers)
	* Weaken memory-alloc functions so user can override them (csilvers)
	* Remove meaningless delete(nothrow) and delete[](nothrow) (csilvers)
	* BUILD: replace clever libtcmalloc/profiler.a with a new .a (csilvers)
	* PORTING: improve windows port  by using google spinlocks (csilvers)
	* PORTING: Fix RedHat 9 memory allocation in heapchecker (csilvers)
	* PORTING: Rename OS_WINDOWS macro to PLATFORM_WINDOWS (mbelshe)
	* PORTING/BUGFIX: Make sure we don't clobber GetLastError (mbelshe)
	* BUGFIX: get rid of useless data for callgrind (weidenrinde)
	* BUGFIX: Modify windows patching to deadlock sometimes (csilvers)
	* BUGFIX: an improved fix for hook handling during fork (csilvers)
	* BUGFIX: revamp profiler_unittest.sh, which was very broken (csilvers)
	
Fri Apr 17 16:40:48 2009  Google Inc. 

	* google-perftools: version 1.2 release
	* Allow large_alloc_threshold=0 to turn it off entirely (csilvers)
	* Die more helpfully when out of memory for internal data (csilvers)
	* Refactor profile-data gathering, add a new unittest (cgd, nabeelmian)
	* BUGFIX: fix rounding errors with static thread-size caches (addi)
	* BUGFIX: disable hooks better when forking in leak-checker (csilvers)
	* BUGFIX: fix realloc of crt pointers on windows (csilvers)
	* BUGFIX: do a better job of finding binaries in .sh tests (csilvers)
	* WINDOWS: allow overriding malloc/etc instead of patching (mbelshe)
	* PORTING: fix compilation error in a ppc-specific file (csilvers)
	* PORTING: deal with quirks in cygwin's /proc/self/maps (csilvers)
	* PORTING: use 'A' version of functions for ascii input (mbelshe)
	* PORTING: generate .so's on cygwin and mingw (ajenjo)
	* PORTING: disable profiler methods on cygwin (jperkins)
	* Updated autoconf version to 2.61 and libtool version to 1.5.26

Wed Mar 11 11:25:34 2009  Google Inc. 

	* google-perftools: version 1.1 release
	* Dynamically resize thread caches -- nice perf. improvement (kash)
	* Add VDSO support to give better stacktraces in linux (ppluzhnikov)
	* Improve heap-profiling sampling algorithm (ford)
	* Rewrite leak-checking code: should be faster and more robust (sanjay)
	* Use ps2 instead of ps for dot: better page cropping for gv (csilvers)
	* Disable malloc-failure warning messages by default (csilvers)
	* Update config/Makefile to disable tests on a per-OS basis (csilvers)
	* PORTING: Get perftools compiling under MSVC 7.1 again (csilvers)
	* PORTING: Get perftools compiling under cygwin again (csilvers)
	* PORTING: automatically set library flags for solaris x86 (csilvers)
	* Add TCMALLOC_SKIP_SBRK to mirror TCMALLOC_SKIP_MMAP (csilvers)
	* Add --enable flags to allow selective building (csilvers)
	* Put addr2line-pdb and nm-pdb in proper output directory (csilvers)
	* Remove deprecated DisableChecksIn (sanjay)
	* DOCUMENTATION: Document most MallocExtension routines (csilvers)
	
Tue Jan  6 13:58:56 2009  Google Inc. 

	* google-perftools: version 1.0 release
	* Exactly the same as 1.0rc2

Sun Dec 14 17:10:35 2008  Google Inc. 

	* google-perftools: version 1.0rc2 release
	* Fix compile error on 64-bit systems (casting ptr to int) (csilvers)

Thu Dec 11 16:01:32 2008  Google Inc. 

	* google-perftools: version 1.0rc1 release
	* Replace API for selectively disabling heap-checker in code (sanjay)
	* Add a pre-mmap hook (daven, adlr)
	* Add MallocExtension interface to set memory-releasing rate (fikes)
	* Augment pprof to allow any string ending in /pprof/profile (csilvers)
	* PORTING: Rewrite -- and fix --  malloc patching for windows (dvitek)
	* PORTING: Add nm-pdb and addr2line-pdb for use by pprof (dvitek)
	* PORTING: Improve cygwin and mingw support (jperkins, csilvers)
	* PORTING: Fix pprof for mac os x, other pprof improvements (csilvers)
	* PORTING: Fix some PPC bugs in our locking code (anton.blanchard)
	* A new unittest, smapling_test, to verify tcmalloc-profiles (csilvers)
	* Turn off TLS for gcc < 4.1.2, due to a TLS + -fPIC bug (csilvers)
	* Prefer __builtin_frame_address to assembly for stacktraces (nlewycky)
	* Separate tcmalloc.cc out into multiple files -- finally! (kash)
	* Make our locking code work with -fPIC on 32-bit x86 (aruns)
	* Fix an initialization-ordering bug for tcmalloc/profiling (csilvers)
	* Use "initial exec" model of TLS to speed up tcmalloc (csilvers)
	* Enforce 16-byte alignment for tcmalloc, for SSE (sanjay)
	
Tue Sep 23 08:56:31 2008  Google Inc. 

	* google-perftools: version 0.99.2 release
	* COMPILE FIX: add #include needed for FreeBSD and OS X (csilvers)

Sat Sep 20 09:37:18 2008  Google Inc. 

	* google-perftools: version 0.99.1 release
	* BUG FIX: look for nm, etc in /usr/bin, not /usr/crosstool (csilvers)

Thu Sep 18 16:00:27 2008  Google Inc. 

	* google-perftools: version 0.99 release
	* Add IsHeapProfileRunning (csilvers)
	* Add C shims for some of the C++ header files (csilvers)
	* Fix heap profile file clean-up logic (maxim)
	* Rename linuxthreads.c to .cc for better compiler support (csilvers)
	* Add source info to disassembly in pprof (sanjay)
	* Use open instead of fopen to avoid memory alloc (csilvers)
	* Disable malloc extensions when running under valgrind (kcc)
	* BUG FIX: Fix out-of-bound error by reordering a check (larryz)
	* Add Options struct to ProfileData (cgd)
	* Correct PC-handling of --base in pprof (csilvers)
	* Handle 1 function occurring twice in an image (sanjay)
	* Improve stack-data cleaning (maxim)
	* Use 'struct Foo' to make header C compatible (csilvers)
	* Add 'total' line to pprof --text (csilvers)
	* Pre-allocate buffer for heap-profiler to avoid OOM errors (csilvers)
	* Allow a few more env-settings to control tcmalloc (csilvers)
	* Document some of the issues involving thread-local storage (csilvers)
	* BUG FIX: Define strtoll and friends for windows (csilvers)

Mon Jun  9 16:47:03 2008  Google Inc. 

	* google-perftools: version 0.98 release
	* Add ProfilerStartWithOptions() (cgd)
	* Change tcmalloc_minimal to not do any stack-tracing at all (csilvers)
	* Prefer mmap to sbrk for 64-buit debug mode (sanjay)
	* Fix accounting for some tcmalloc stats (sanjay)
	* Use setrlimit() to keep unittests from killing the machine (odo)
	* Fix a bug when sbrk-ing near address 4G (csilvers)
	* Make MallocHook thread-safe (jyasskin)
	* Fix windows build for MemoryBarrier (jyasskin)
	* Fix CPU-profiler docs to mention correct libs (csilvers)
	* Fix for GetHeapProfile() when heap-profiling is off (maxim)
	* Avoid realloc resizing ping-pongs using hysteresis (csilvers)
	* Add --callgrind output support to pprof (klimek)
	* Fix profiler.h and heap-profiler.h to be C-compatible (csilvers)
	* Break malloc_hook.h into two parts to reduce dependencies (csilvers)
	* Better handle systems that don't implement mmap (csilvers)
	* PORTING: disable system_alloc_unittest for msvc (csilvers)
	* PORTING: Makefile tweaks to build better on cygwin (csilvers)
	
Mon Apr 21 15:20:52 2008  Google Inc. 

	* google-perftools: version 0.97 release
	* Refactor GetHeapProfile to avoid using malloc (maxim)
	* Fix heap-checker and heap-profiler hook interactions (maxim)
	* Fix a data race in MemoryRegionMap::Lock (jyasskin)
	* Improve thread-safety of leak checker (maxim)
	* Fix mmap profile to no longer deadlock (maxim)
	* Fix rpm to have devel package depend on non-devel (csilvers)
	* PORTING: Fix clock-speed detection for Mac OS X (csilvers)

Tue Mar 18 14:30:44 2008  Google Inc. 

	* google-perftools: version 0.96 release
	* major atomicops rewrite; fixed atomic ops code for linux/ppc (vchen)
	* nix the stacktrace library; now build structure is simpler (csilvers)
	* Speed up heap-checker, and reduce extraneous logging (maxim)
	* Improve itimer code for NPTL case (cgd)
	* Add source code annotations for use by valgrind, etc (kcc)
	* PORTING: Fix high resolution timers for Mac OS X (adlr)

Tue Feb 19 12:01:31 2008  Google Inc. 

	* google-perftools: version 0.95.1 release  (bugfix release)
	* x86_64 compile-fix: nix pread64 and pwrite64 (csilvers)
	* more heap-checker debug logging (maxim)
	* minor improvement to x86_64 CycleClock (gpike)

Tue Feb 12 12:28:32 2008  Google Inc. 

	* google-perftools: version 0.95 release
	* Better -- not perfect -- support for linux-ppc (csilvers)
	* Fix race condition in libunwind stacktrace (aruns)
	* Speed up x86 spinlock locking (m3b)
	* Improve heap-checker performance (maxim)
	* Heap checker traverses more ptrs inside heap-alloced objects (maxim)
	* Remove deprecated ProfilerThreadState function (cgd)
	* Update libunwind documentation for statically linked binaries (aruns)

Mon Dec  3 23:51:54 2007  Google Inc. 

	* google-perftools: version 0.94.1 release  (bugfix release)
	* Fix missing #includes for x86_64 compile using libunwind (csilvers)

Thu Nov 29 07:59:43 2007  Google Inc. 

	* google-perftools: version 0.94 release
	* PORTING: MinGW/Msys support -- runs same code as MSVC does (csilvers)
	* PORTING: Add NumCPUs support for Mac OS X (csilvers)
	* Work around a sscanf bug in glibc(?) (waldemar)
	* Fix Windows MSVC bug triggered by thread deletion (csilvers)
	* Fix bug that triggers in MSVC /O2: missing volatile (gpike)
	* March-of-time support: quiet warnings/errors for gcc 4.2, OS X 10.5
	* Modify pprof so it works without nm: useful for windows (csilvers)
	* pprof: Support filtering for CPU profiles (cgd)
	* Bugfix: have realloc report to hooks in all situations (maxim)
	* Speed improvement: replace slow memcpy with std::copy (soren)
	* Speed: better iterator efficiency in RecordRegionRemoval (soren)
	* Speed: minor speed improvements via better bitfield alignment (gpike)
	* Documentation: add documentation of binary profile output (cgd)
	
Fri Aug 17 12:32:56 2007  Google Inc. 

	* google-perftools: version 0.93 release
	* PORTING: everything compiles on Solaris, OS X, FreeBSD (see INSTALL)
	* PORTING: cpu-profiler works on most platforms (much better GetPC())
	* PORTING: heap-profiler works on most platforms
	* PORTING: improved windows support, including release builds
	* No longer build or run ptmalloc tests by default
	* Add support for using memfs filesystem to allocate memory in linux
	* WINDOWS: give debug library and release library different names
	
Tue Jul 17 22:26:27 2007  Google Inc. 

	* google-perftools: version 0.92 release
	* PERFORMANCE: use a packed cache to speed up tcmalloc
	* PORTING: preliminary windows support! (see README.windows)
	* PORTING: better support for solaris, OS X, FreeBSD (see INSTALL)
	* Envvar support for running the heap-checker under gdb
	* Add weak declarations to maybe_threads to fix no-pthreads compile bugs
	* Some 64bit fixes, especially with pprof
	* Better heap-checker support for some low-level allocations
	* Fix bug where heap-profiles would sometimes get truncated
	* New documentation about how to handle common heap leak situations
	* Use computed includes for hash_map/set: easier config
	* Added all used .m4 templates to the distribution

Wed Apr 18 16:43:55 2007  Google Inc. 

	* google-perftools: version 0.91 release
	* Brown-paper-bag bugfix: compilation error on some x86-64 machines

Fri Apr 13 14:50:51 2007  Google Inc. 

	* google-perftools: version 0.90 release
	* (As the version-number jump hints, this is a major new release:
	  almost every piece of functionality was rewritten.  I can't do
	  justice to all the changes, but will concentrate on highlights.)
	*** USER-VISIBLE CHANGES:
	* Ability to "release" unused memory added to tcmalloc
	* Exposed more tweaking knobs via environment variables (see docs)
	* pprof tries harder to map addresses to functions
	* tcmalloc_minimal compiles and runs on FreeBSD 6.0 and Solaris 10
	*** INTERNAL CHANGES:
	* Much better 64-bit support
	* Better multiple-processor support (e.g. multicore contention tweaks)
	* Support for recent kernel ABI changes (e.g. new arg to mremap)
	* Addition of spinlocks to tcmalloc to reduce contention cost
	* Speed up tcmalloc by using __thread on systems that support TLS
	* Total redesign of heap-checker to improve liveness checking
	* More portable stack-frame analysis -- no more hard-coded constants!
	* Disentangled heap-profiler code and heap-checker code
	* Several new unittests to test, e.g., thread-contention costs
	* Lots of small (but important!) bug fixes: e.g., fixing GetPC on amd64
	*** KNOWN PROBLEMS:
	* CPU-profiling may crash on x86_64 (64-bit) systems.  See the README
	* Profiling/heap-checking may deadlock on x86_64 systems.  See README

Wed Jun 14 15:11:14 2006  Google Inc. 

	* google-perftools: version 0.8 release
	* Experimental support for remote profiling added to pprof (many)
	* Fixed race condition in ProfileData::FlushTable (etune)
	* Better support for weird /proc maps (maxim, mec)
	* Fix heap-checker interaction with gdb (markus)
	* Better 64-bit support in pprof (aruns)
	* Reduce scavenging cost in tcmalloc by capping NumMoveSize (sanjay)
	* Cast syscall(SYS_mmap); works on more 64-bit systems now (menage)
	* Document the text output of pprof! (csilvers)
	* Better compiler support for no-THREADS and for old compilers (csilvers)
	* Make libunwind the default stack unwinder for x86-64 (aruns)
	* Somehow the COPYING file got erased.  Regenerate it (csilvers)

Thu Apr 13 20:59:09 2006  Google Inc. 

	* google-perftools: version 0.7 release
	* Major rewrite of thread introspection for new kernels (markus)
	* Major rewrite of heap-checker to use new thread tools (maxim)
	* Add proper support for following data in thread registers (maxim)
	* Syscall support for older kernels, including _syscall6 (markus)
	* Support PIC mode (markus, mbland, iant)
	* Better support for running in non-threaded contexts (csilvers)

Fri Jan 27 14:04:27 2006  Google Inc. 

	* google-perftools: version 0.6 release
	* More sophisticated stacktrace usage, possibly using libunwind (aruns)
	* Update pprof to handle 64-bit profiles (dehnert)
	* Fix GetStackTrace to correctly return top stackframe (sanjay)
	* Add ANSI compliance for new and new[], including new_handler (jkearney)
	* More accuracy by reading ELF files directly rather than objdump (mec)
	* Add readline support for pprof (addi)
	* Add #includes for PPC (csilvers)
	* New PC-detection routine for ibook powerpc (asbestoshead)
	* Vastly improved tcmalloc unittest (csilvers)
	* Move documentation from /usr/doc to /usr/share/doc

Mon Nov 14 17:28:59 2005  Google Inc. 

	* google-perftools: version 0.5 release
	* Add va_start/va_end calls around vsnprintf() (csilvers)
	* Write our own __syscall_return(), since it's not defined
	  consistently on all 64-bit linux distros (markus)

Wed Oct 26 15:19:16 2005  Google Inc. 

	* google-perftools: version 0.4 release
	* Decrease fragmentation in tcmalloc (lefevere)
	* Support for ARM in some of the thread-specific code (markus)
	* Turn off heap-checker for statically-linked binaries, which
	  cause error leak reports now (etune)
	* Many pprof improvements, including a command-line interface (jeff)
	* CPU profiling now automatically affects all threads in linux 2.6.
	  (Kernel bugs break CPU profiling and threads in linux 2.4 a bit.)
	  ProfilerEnable() and ProfilerDisable() are deprecated.  (sanjay)
	* tcmalloc now correctly intercepts memalign (m3b, maxim)
	* Syntax fix: added missing va_end()s.  Helps non-gcc compiling (etune)
	* Fixed a few coredumper bugs: race condition after PTRACE_DETACH,
	  ignore non-aligned stackframe pointers (markus, menage)
	* 64-bit cleanup, especially for spinlock code (etune) and mmap (sanjay)
	* Better support for finding threads in linux (markus)
	* tcmalloc now tracks those stack traces that allocate memory (sanjay)
	* Work around a weird setspecific problem (sanjay)
	* Fix tcmalloc overflow problems when an alloc is close to 2G/4G (sanjay)

Fri Jun 24 18:02:26 2005  Google Inc. 

	* google-perftools: version 0.3 release
	* Add missing errno include for one of the unittests (csilvers)
	* Reduce tcmalloc startup memory from 5M to 256K (sanjay)
	* Add support for mallopt() and mallinfo (sanjay)
	* Improve stacktrace's performance on some 64-bit systems (etune)
	* Improve the stacktrace unittest (etune)

Tue May 31 08:14:38 2005  Google Inc. 

	* google-perftools: version 0.2 release
	* Use mmap2() instead of mmap(), to map more memory (menage)
	* Do correct pthread-local checking in heap-checker! (maxim)
	* Avoid overflow on 64-bit machines in pprof (sanjay)
	* Add a few more GetPC() functions, including for AMD (csilvers)
	* Better method for overriding pthread functions (menage)
	* (Hacky) fix to avoid overwriting profile files after fork() (csilvers)
	* Crashing bugfix involving dumping heaps on small-stack threads (tudor)
	* Allow library versions with letters at the end (csilvers)
	* Config fixes for systems that don't define PATH_MAX (csilvers)
	* Confix fixes so we no longer need config.h after install (csilvers)
	* Fix to pprof to correctly read very big cpu profiles (csilvers)
	* Fix to pprof to deal with new commandline flags in modern gv's
	* Better error reporting when we can't access /proc/maps (etune)
	* Get rid of the libc-preallocate code (which could crash on some
	  systems); no longer needed with local-threads fix (csilvers)

Tue Feb 8 09:57:17 2005  Google Inc. 

	* google-perftools: initial release:
	  The google-perftools package contains some utilities to improve
	  and analyze the performance of C++ programs.  This includes an
	  optimized thread-caching malloc() and cpu and heap profiling
	  utilities.
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noinst_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
	$(am__EXEEXT_4) $(am__EXEEXT_5) $(am__EXEEXT_6) \
	$(am__EXEEXT_7) $(am__EXEEXT_8) $(am__EXEEXT_22)
bin_PROGRAMS =
@MINGW_TRUE@am__append_9 = libwindows.la libspinlock.la

# We also need to tell mingw that sysinfo.cc needs shlwapi.lib.
# (We do this via a #pragma for msvc, but need to do it here for mingw).
@MINGW_TRUE@am__append_10 = -lshlwapi
# windows has its own system for threads and system memory allocation.
@HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE@@MINGW_TRUE@am__append_11 = src/maybe_threads.cc
@MINGW_FALSE@am__append_12 = libspinlock.la
@MINGW_FALSE@am__append_13 = src/maybe_threads.cc
@WITH_STACK_TRACE_TRUE@am__append_14 = $(SG_STACKTRACE_INCLUDES)

### Making the library
@WITH_STACK_TRACE_TRUE@am__append_15 = libstacktrace.la

### Unittests
@WITH_STACK_TRACE_TRUE@am__append_16 = stacktrace_unittest

### Documentation
@WITH_STACK_TRACE_TRUE@am__append_17 = doc/pprof_remote_servers.html

# Let unittests find pprof if they need to run it
@WITH_STACK_TRACE_TRUE@am__append_18 = PPROF_PATH=$(top_srcdir)/src/pprof

# On MSVC, we need our own versions of addr2line and nm to work with pprof.
# This is a slight abuse of WINDOWS_PROJECTS, but not much
@WITH_STACK_TRACE_TRUE@am__append_19 =  \
@WITH_STACK_TRACE_TRUE@	vsprojects/nm-pdb/nm-pdb.vcproj \
@WITH_STACK_TRACE_TRUE@	vsprojects/addr2line-pdb/addr2line-pdb.vcproj \
@WITH_STACK_TRACE_TRUE@	src/windows/nm-pdb.c \
@WITH_STACK_TRACE_TRUE@	src/windows/addr2line-pdb.c

# This tests it works to LD_PRELOAD libtcmalloc (tests maybe_threads.cc)
# In theory this should work under mingw, but mingw has trouble running
# shell scripts that end in .exe.  And it doesn't seem to build shared
# libraries anyway (so can't be LD_PRELOADed) -- in fact, anybody who
# chooses not to build shared libraries won't be able to run this test.
# TODO(csilvers): figure out how to nix ".exe" or otherwise work under mingw
@ENABLE_STATIC_FALSE@@MINGW_FALSE@am__append_20 = maybe_threads_unittest.sh$(EXEEXT)
@ENABLE_STATIC_FALSE@@MINGW_FALSE@am__append_21 = $(maybe_threads_unittest_sh_SOURCES)
@MINGW_TRUE@am__append_22 = src/windows/port.h src/windows/port.cc
@MINGW_FALSE@am__append_23 = system_alloc_unittest

# This doesn't work with mingw, which links foo.a even though it
# doesn't set ENABLE_STATIC.  TODO(csilvers): set enable_static=true
# in configure.ac:36?
@MINGW_FALSE@am__append_24 = malloc_extension_c_test
# -ansi here is just to help ensure the code is bog-standard C.
@GCC_TRUE@@MINGW_FALSE@am__append_25 = -ansi
@MINGW_FALSE@@OSX_FALSE@am__append_26 = memalign_unittest

### ------- tcmalloc_minimal_debug (thread-caching malloc with debugallocation)

# Like tcmalloc.cc, debugallocation.cc needs exceptions to fulfill its
# API.  Luckily, we can reuse everything else from tcmalloc_minimal.
@WITH_DEBUGALLOC_TRUE@am__append_27 = libtcmalloc_minimal_debug.la
@WITH_DEBUGALLOC_TRUE@am__append_28 = libtcmalloc_minimal_debug.la

### Unittests
@WITH_DEBUGALLOC_TRUE@am__append_29 = tcmalloc_minimal_debug_unittest \
@WITH_DEBUGALLOC_TRUE@	malloc_extension_debug_test
@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@am__append_30 = memalign_debug_unittest
@WITH_DEBUGALLOC_TRUE@am__append_31 = realloc_debug_unittest

# debugallocation_test checks that we print a proper stacktrace when
# debug-allocs fail, so we can't run it if we don't have stacktrace info.
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__append_32 = debugallocation_test.sh$(EXEEXT)
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__append_33 = $(debugallocation_test_sh_SOURCES)

# This is the sub-program used by debugallocation_test.sh
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__append_34 = debugallocation_test
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_35 = $(SG_TCMALLOC_INCLUDES)

### Making the library

# As we describe at the top of this file, we want to turn off exceptions
# for all files in this library -- except tcmalloc.cc which needs them
# to fulfill its API.  Automake doesn't allow per-file CXXFLAGS, so we need
# to separate into two libraries.
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_36 = libtcmalloc_internal.la
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_37 = libtcmalloc.la
@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_38 = $(HEAP_CHECKER_SOURCES)
@WITH_HEAP_CHECKER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_39 = -DNO_HEAP_CHECK
@WITH_HEAP_CHECKER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_40 = -DNO_HEAP_CHECK
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_41 = libtcmalloc.la

### Unittests
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_42 = tcmalloc_unittest.sh$(EXEEXT)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_43 = $(tcmalloc_unittest_sh_SOURCES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(sampling_test_sh_SOURCES)

# This is the sub-program used by sampling_test.sh
# The -g is so pprof can get symbol information.
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_44 = tcmalloc_unittest \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampling_test
@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_45 = tcmalloc_both_unittest
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_46 =  \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	tcmalloc_large_unittest \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	tcmalloc_large_heap_fragmentation_unittest \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	raw_printer_test \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampler_test \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampling_test.sh$(EXEEXT)

# sampler_test and sampling_test both require sampling to be turned
# on, which it's not by default.  Use the "standard" value of 2^19.

# These unittests often need to run binaries.  They're in the current dir
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_47 = TCMALLOC_SAMPLE_PARAMETER=524288 \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	BINDIR=. \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	TMPDIR=/tmp/perftools
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_48 = vsprojects/sampler_test/sampler_test.vcproj

# Tests the compatibility include-headers in google/.  Requires a function
# defined in the heap-profiler, which is why the test lives here.
@WITH_HEAP_PROFILER_TRUE@am__append_49 =  \
@WITH_HEAP_PROFILER_TRUE@	heap-profiler_unittest.sh$(EXEEXT) \
@WITH_HEAP_PROFILER_TRUE@	simple_compat_test
@WITH_HEAP_PROFILER_TRUE@am__append_50 = $(heap_profiler_unittest_sh_SOURCES)

# These are sub-programs used by heap-profiler_unittest.sh
@WITH_HEAP_PROFILER_TRUE@am__append_51 = heap-profiler_unittest
@WITH_HEAP_CHECKER_TRUE@am__append_52 =  \
@WITH_HEAP_CHECKER_TRUE@	heap-checker_unittest.sh$(EXEEXT) \
@WITH_HEAP_CHECKER_TRUE@	heap-checker-death_unittest.sh$(EXEEXT)
@WITH_HEAP_CHECKER_TRUE@am__append_53 =  \
@WITH_HEAP_CHECKER_TRUE@	$(heap_checker_unittest_sh_SOURCES) \
@WITH_HEAP_CHECKER_TRUE@	$(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES)

# These are sub-programs used by heap-checker_unittest.sh
@WITH_HEAP_CHECKER_TRUE@am__append_54 = heap-checker_unittest

### Documentation (above and beyond tcmalloc_minimal documentation)
@WITH_HEAP_PROFILER_TRUE@am__append_55 = doc/heapprofile.html doc/heap-example1.png
@WITH_HEAP_CHECKER_TRUE@am__append_56 = doc/heap_checker.html

### ------- tcmalloc with debugallocation
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_57 = libtcmalloc_debug.la
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_58 = libtcmalloc_debug.la

### Unittests
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_59 = tcmalloc_debug_unittest \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampler_debug_test \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampling_debug_test.sh$(EXEEXT)

# This is the sub-program using by sampling_debug_test.sh
# The -g is so pprof can get symbol information.
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_60 = sampling_debug_test
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@am__append_61 = heap-profiler_debug_unittest.sh$(EXEEXT)

# These are sub-programs used by heap-profiler_debug_unittest.sh
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@am__append_62 = heap-profiler_debug_unittest
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@am__append_63 = heap-checker_debug_unittest.sh$(EXEEXT)

# These are sub-programs used by heap-checker_debug_unittest.sh
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@am__append_64 = heap-checker_debug_unittest
@WITH_CPU_PROFILER_TRUE@am__append_65 = $(SG_CPU_PROFILER_INCLUDES)

### Making the library
@WITH_CPU_PROFILER_TRUE@am__append_66 = libprofiler.la

### Unittests
@WITH_CPU_PROFILER_TRUE@am__append_67 = getpc_test \
@WITH_CPU_PROFILER_TRUE@	profiledata_unittest \
@WITH_CPU_PROFILER_TRUE@	profile_handler_unittest \
@WITH_CPU_PROFILER_TRUE@	profiler_unittest.sh$(EXEEXT)
@WITH_CPU_PROFILER_TRUE@am__append_68 = $(profiler_unittest_sh_SOURCES)

# These are sub-programs used by profiler_unittest.sh
@WITH_CPU_PROFILER_TRUE@am__append_69 = profiler1_unittest profiler2_unittest profiler3_unittest \
@WITH_CPU_PROFILER_TRUE@                   profiler4_unittest

@WITH_CPU_PROFILER_FALSE@profiler2_unittest_DEPENDENCIES =

### Documentation
@WITH_CPU_PROFILER_TRUE@am__append_70 = doc/cpuprofile.html \
@WITH_CPU_PROFILER_TRUE@                 doc/cpuprofile-fileformat.html \
@WITH_CPU_PROFILER_TRUE@                 doc/pprof-test-big.gif \
@WITH_CPU_PROFILER_TRUE@                 doc/pprof-test.gif \
@WITH_CPU_PROFILER_TRUE@                 doc/pprof-vsnprintf-big.gif \
@WITH_CPU_PROFILER_TRUE@                 doc/pprof-vsnprintf.gif


### ------- CPU profiler and heap checker, in one!

# Ideally, folks who wanted to use both tcmalloc and libprofiler,
# could just link them both into their application.  But while this
# works fine for .so files, it does not for .a files.  The easiest way
# around this -- and I've tried a bunch of the hard ways -- is to just
# to create another set of libraries that has both functionality in it.
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_71 = libtcmalloc_and_profiler.la
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_72 = tcmalloc_and_profiler_unittest
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__append_73 = libtcmalloc_and_profiler.la
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	src/libc_override_osx.h src/libc_override_redefine.h \
	src/page_heap.h src/page_heap_allocator.h src/span.h \
	src/static_vars.h src/symbolize.h src/thread_cache.h \
	src/stack_trace_table.h src/base/thread_annotations.h \
	src/malloc_hook-inl.h src/malloc_hook_mmap_linux.h \
	src/malloc_hook_mmap_freebsd.h src/gperftools/malloc_hook.h \
	src/gperftools/malloc_hook_c.h \
	src/gperftools/malloc_extension.h \
	src/gperftools/malloc_extension_c.h \
	src/gperftools/stacktrace.h
@WITH_DEBUGALLOC_TRUE@am_libtcmalloc_minimal_debug_la_OBJECTS = src/libtcmalloc_minimal_debug_la-debugallocation.lo \
@WITH_DEBUGALLOC_TRUE@	$(am__objects_20)
libtcmalloc_minimal_debug_la_OBJECTS =  \
	$(am_libtcmalloc_minimal_debug_la_OBJECTS)
libtcmalloc_minimal_debug_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(libtcmalloc_minimal_debug_la_CXXFLAGS) $(CXXFLAGS) \
	$(libtcmalloc_minimal_debug_la_LDFLAGS) $(LDFLAGS) -o $@
@WITH_DEBUGALLOC_TRUE@am_libtcmalloc_minimal_debug_la_rpath = -rpath \
@WITH_DEBUGALLOC_TRUE@	$(libdir)
libtcmalloc_minimal_internal_la_DEPENDENCIES = $(am__DEPENDENCIES_1) \
	$(LIBSPINLOCK) libmaybe_threads.la
am__libtcmalloc_minimal_internal_la_SOURCES_DIST = src/common.cc \
	src/internal_logging.cc src/system-alloc.cc \
	src/memfs_malloc.cc src/central_freelist.cc src/page_heap.cc \
	src/sampler.cc src/span.cc src/stack_trace_table.cc \
	src/static_vars.cc src/symbolize.cc src/thread_cache.cc \
	src/malloc_hook.cc src/malloc_extension.cc src/common.h \
	src/internal_logging.h src/system-alloc.h \
	src/packed-cache-inl.h src/base/spinlock.h \
	src/base/spinlock_internal.h src/base/atomicops.h \
	src/base/atomicops-internals-macosx.h \
	src/base/atomicops-internals-linuxppc.h \
	src/base/atomicops-internals-windows.h \
	src/base/atomicops-internals-x86.h \
	src/base/spinlock_win32-inl.h src/base/spinlock_linux-inl.h \
	src/base/spinlock_posix-inl.h \
	src/base/synchronization_profiling.h \
	src/base/atomicops-internals-arm-generic.h \
	src/base/atomicops-internals-arm-v6plus.h \
	src/base/atomicops-internals-mips.h \
	src/base/atomicops-internals-gcc.h src/tcmalloc_guard.h \
	src/base/commandlineflags.h src/base/basictypes.h \
	src/pagemap.h src/sampler.h src/central_freelist.h \
	src/linked_list.h src/libc_override.h \
	src/libc_override_gcc_and_weak.h src/libc_override_glibc.h \
	src/libc_override_osx.h src/libc_override_redefine.h \
	src/page_heap.h src/page_heap_allocator.h src/span.h \
	src/static_vars.h src/symbolize.h src/thread_cache.h \
	src/stack_trace_table.h src/base/thread_annotations.h \
	src/malloc_hook-inl.h src/malloc_hook_mmap_linux.h \
	src/malloc_hook_mmap_freebsd.h src/gperftools/malloc_hook.h \
	src/gperftools/malloc_hook_c.h \
	src/gperftools/malloc_extension.h \
	src/gperftools/malloc_extension_c.h \
	src/gperftools/stacktrace.h
@MINGW_FALSE@am__objects_23 = src/libtcmalloc_minimal_internal_la-system-alloc.lo
am_libtcmalloc_minimal_internal_la_OBJECTS =  \
	src/libtcmalloc_minimal_internal_la-common.lo \
	src/libtcmalloc_minimal_internal_la-internal_logging.lo \
	$(am__objects_23) \
	src/libtcmalloc_minimal_internal_la-memfs_malloc.lo \
	src/libtcmalloc_minimal_internal_la-central_freelist.lo \
	src/libtcmalloc_minimal_internal_la-page_heap.lo \
	src/libtcmalloc_minimal_internal_la-sampler.lo \
	src/libtcmalloc_minimal_internal_la-span.lo \
	src/libtcmalloc_minimal_internal_la-stack_trace_table.lo \
	src/libtcmalloc_minimal_internal_la-static_vars.lo \
	src/libtcmalloc_minimal_internal_la-symbolize.lo \
	src/libtcmalloc_minimal_internal_la-thread_cache.lo \
	src/libtcmalloc_minimal_internal_la-malloc_hook.lo \
	src/libtcmalloc_minimal_internal_la-malloc_extension.lo \
	$(am__objects_20)
libtcmalloc_minimal_internal_la_OBJECTS =  \
	$(am_libtcmalloc_minimal_internal_la_OBJECTS)
libtcmalloc_minimal_internal_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(libtcmalloc_minimal_internal_la_CXXFLAGS) $(CXXFLAGS) \
	$(libtcmalloc_minimal_internal_la_LDFLAGS) $(LDFLAGS) -o $@
libwindows_la_DEPENDENCIES =
am__libwindows_la_SOURCES_DIST = src/windows/port.h \
	src/windows/mingw.h src/windows/mini_disassembler.h \
	src/windows/mini_disassembler_types.h \
	src/windows/preamble_patcher.h src/windows/port.cc \
	src/windows/system-alloc.cc src/windows/ia32_modrm_map.cc \
	src/windows/ia32_opcode_map.cc \
	src/windows/mini_disassembler.cc \
	src/windows/patch_functions.cc src/windows/preamble_patcher.cc \
	src/windows/preamble_patcher_with_stub.cc
@MINGW_TRUE@am_libwindows_la_OBJECTS = $(am__objects_1) \
@MINGW_TRUE@	src/windows/port.lo src/windows/system-alloc.lo \
@MINGW_TRUE@	src/windows/ia32_modrm_map.lo \
@MINGW_TRUE@	src/windows/ia32_opcode_map.lo \
@MINGW_TRUE@	src/windows/mini_disassembler.lo \
@MINGW_TRUE@	src/windows/patch_functions.lo \
@MINGW_TRUE@	src/windows/preamble_patcher.lo \
@MINGW_TRUE@	src/windows/preamble_patcher_with_stub.lo
libwindows_la_OBJECTS = $(am_libwindows_la_OBJECTS)
@MINGW_TRUE@am_libwindows_la_rpath =
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am__EXEEXT_1 = debugallocation_test$(EXEEXT)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_2 = tcmalloc_unittest$(EXEEXT) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampling_test$(EXEEXT)
@WITH_HEAP_PROFILER_TRUE@am__EXEEXT_3 =  \
@WITH_HEAP_PROFILER_TRUE@	heap-profiler_unittest$(EXEEXT)
@WITH_HEAP_CHECKER_TRUE@am__EXEEXT_4 = heap-checker_unittest$(EXEEXT)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_5 = sampling_debug_test$(EXEEXT)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@am__EXEEXT_6 = heap-profiler_debug_unittest$(EXEEXT)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@am__EXEEXT_7 = heap-checker_debug_unittest$(EXEEXT)
@WITH_CPU_PROFILER_TRUE@am__EXEEXT_8 = profiler1_unittest$(EXEEXT) \
@WITH_CPU_PROFILER_TRUE@	profiler2_unittest$(EXEEXT) \
@WITH_CPU_PROFILER_TRUE@	profiler3_unittest$(EXEEXT) \
@WITH_CPU_PROFILER_TRUE@	profiler4_unittest$(EXEEXT)
@WITH_STACK_TRACE_TRUE@am__EXEEXT_9 = stacktrace_unittest$(EXEEXT)
@MINGW_FALSE@am__EXEEXT_10 = system_alloc_unittest$(EXEEXT)
@MINGW_FALSE@am__EXEEXT_11 = malloc_extension_c_test$(EXEEXT)
@MINGW_FALSE@@OSX_FALSE@am__EXEEXT_12 = memalign_unittest$(EXEEXT)
@WITH_DEBUGALLOC_TRUE@am__EXEEXT_13 = tcmalloc_minimal_debug_unittest$(EXEEXT) \
@WITH_DEBUGALLOC_TRUE@	malloc_extension_debug_test$(EXEEXT)
@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@am__EXEEXT_14 = memalign_debug_unittest$(EXEEXT)
@WITH_DEBUGALLOC_TRUE@am__EXEEXT_15 = realloc_debug_unittest$(EXEEXT)
@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_16 = tcmalloc_both_unittest$(EXEEXT)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_17 = tcmalloc_large_unittest$(EXEEXT) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	tcmalloc_large_heap_fragmentation_unittest$(EXEEXT) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	raw_printer_test$(EXEEXT) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampler_test$(EXEEXT) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampling_test.sh$(EXEEXT)
@WITH_HEAP_PROFILER_TRUE@am__EXEEXT_18 =  \
@WITH_HEAP_PROFILER_TRUE@	heap-profiler_unittest.sh$(EXEEXT) \
@WITH_HEAP_PROFILER_TRUE@	simple_compat_test$(EXEEXT)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_19 = tcmalloc_debug_unittest$(EXEEXT) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampler_debug_test$(EXEEXT) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	sampling_debug_test.sh$(EXEEXT)
@WITH_CPU_PROFILER_TRUE@am__EXEEXT_20 = getpc_test$(EXEEXT) \
@WITH_CPU_PROFILER_TRUE@	profiledata_unittest$(EXEEXT) \
@WITH_CPU_PROFILER_TRUE@	profile_handler_unittest$(EXEEXT) \
@WITH_CPU_PROFILER_TRUE@	profiler_unittest.sh$(EXEEXT)
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@am__EXEEXT_21 = tcmalloc_and_profiler_unittest$(EXEEXT)
am__EXEEXT_22 = low_level_alloc_unittest$(EXEEXT) \
	atomicops_unittest$(EXEEXT) $(am__EXEEXT_9) \
	tcmalloc_minimal_unittest$(EXEEXT) \
	tcmalloc_minimal_large_unittest$(EXEEXT) \
	tcmalloc_minimal_large_heap_fragmentation_unittest$(EXEEXT) \
	$(am__append_20) addressmap_unittest$(EXEEXT) $(am__EXEEXT_10) \
	packed_cache_test$(EXEEXT) frag_unittest$(EXEEXT) \
	markidle_unittest$(EXEEXT) \
	current_allocated_bytes_test$(EXEEXT) \
	malloc_hook_test$(EXEEXT) malloc_extension_test$(EXEEXT) \
	$(am__EXEEXT_11) $(am__EXEEXT_12) page_heap_test$(EXEEXT) \
	pagemap_unittest$(EXEEXT) realloc_unittest$(EXEEXT) \
	stack_trace_table_test$(EXEEXT) \
	thread_dealloc_unittest$(EXEEXT) $(am__EXEEXT_13) \
	$(am__EXEEXT_14) $(am__EXEEXT_15) $(am__append_32) \
	$(am__append_42) $(am__EXEEXT_16) $(am__EXEEXT_17) \
	$(am__EXEEXT_18) $(am__append_52) $(am__EXEEXT_19) \
	$(am__append_61) $(am__append_63) $(am__EXEEXT_20) \
	$(am__EXEEXT_21)
PROGRAMS = $(bin_PROGRAMS) $(noinst_PROGRAMS)
am__addressmap_unittest_SOURCES_DIST =  \
	src/tests/addressmap_unittest.cc src/addressmap-inl.h \
	src/base/commandlineflags.h src/base/logging.h \
	src/base/basictypes.h src/base/dynamic_annotations.h \
	src/third_party/valgrind.h src/windows/port.h \
	src/windows/port.cc
@MINGW_TRUE@am__objects_24 =  \
@MINGW_TRUE@	src/windows/addressmap_unittest-port.$(OBJEXT)
am_addressmap_unittest_OBJECTS =  \
	src/tests/addressmap_unittest-addressmap_unittest.$(OBJEXT) \
	$(am__objects_8) $(am__objects_24)
addressmap_unittest_OBJECTS = $(am_addressmap_unittest_OBJECTS)
addressmap_unittest_DEPENDENCIES = liblogging.la
addressmap_unittest_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(addressmap_unittest_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
	$(LDFLAGS) -o $@
am_atomicops_unittest_OBJECTS =  \
	src/tests/atomicops_unittest.$(OBJEXT) $(am__objects_8)
atomicops_unittest_OBJECTS = $(am_atomicops_unittest_OBJECTS)
atomicops_unittest_DEPENDENCIES = $(LIBSPINLOCK)
am_current_allocated_bytes_test_OBJECTS = src/tests/current_allocated_bytes_test-current_allocated_bytes_test.$(OBJEXT)
current_allocated_bytes_test_OBJECTS =  \
	$(am_current_allocated_bytes_test_OBJECTS)
current_allocated_bytes_test_DEPENDENCIES = $(LIBTCMALLOC_MINIMAL) \
	$(am__DEPENDENCIES_1)
current_allocated_bytes_test_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(current_allocated_bytes_test_CXXFLAGS) $(CXXFLAGS) \
	$(current_allocated_bytes_test_LDFLAGS) $(LDFLAGS) -o $@
am__debugallocation_test_SOURCES_DIST =  \
	src/tests/debugallocation_test.cc
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@am_debugallocation_test_OBJECTS = src/tests/debugallocation_test-debugallocation_test.$(OBJEXT)
debugallocation_test_OBJECTS = $(am_debugallocation_test_OBJECTS)
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_DEPENDENCIES = libtcmalloc_debug.la \
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@	$(am__DEPENDENCIES_1)
debugallocation_test_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(debugallocation_test_CXXFLAGS) $(CXXFLAGS) \
	$(debugallocation_test_LDFLAGS) $(LDFLAGS) -o $@
am__debugallocation_test_sh_SOURCES_DIST =  \
	src/tests/debugallocation_test.sh
am_debugallocation_test_sh_OBJECTS =
debugallocation_test_sh_OBJECTS =  \
	$(am_debugallocation_test_sh_OBJECTS)
debugallocation_test_sh_LDADD = $(LDADD)
am_frag_unittest_OBJECTS =  \
	src/tests/frag_unittest-frag_unittest.$(OBJEXT)
frag_unittest_OBJECTS = $(am_frag_unittest_OBJECTS)
frag_unittest_DEPENDENCIES = $(LIBTCMALLOC_MINIMAL) \
	$(am__DEPENDENCIES_1)
frag_unittest_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(frag_unittest_CXXFLAGS) $(CXXFLAGS) $(frag_unittest_LDFLAGS) \
	$(LDFLAGS) -o $@
am__getpc_test_SOURCES_DIST = src/tests/getpc_test.cc src/getpc.h
@WITH_CPU_PROFILER_TRUE@am_getpc_test_OBJECTS =  \
@WITH_CPU_PROFILER_TRUE@	src/tests/getpc_test.$(OBJEXT)
getpc_test_OBJECTS = $(am_getpc_test_OBJECTS)
getpc_test_LDADD = $(LDADD)
am__heap_checker_death_unittest_sh_SOURCES_DIST =  \
	src/tests/heap-checker-death_unittest.sh
am_heap_checker_death_unittest_sh_OBJECTS =
heap_checker_death_unittest_sh_OBJECTS =  \
	$(am_heap_checker_death_unittest_sh_OBJECTS)
heap_checker_death_unittest_sh_LDADD = $(LDADD)
am__heap_checker_debug_unittest_SOURCES_DIST =  \
	src/tests/heap-checker_unittest.cc src/config_for_unittests.h \
	src/memory_region_map.h src/base/commandlineflags.h \
	src/base/googleinit.h src/gperftools/heap-checker.h \
	src/base/logging.h src/base/basictypes.h \
	src/base/dynamic_annotations.h src/third_party/valgrind.h
@WITH_HEAP_CHECKER_TRUE@am__objects_25 = $(am__objects_1)
@WITH_HEAP_CHECKER_TRUE@am__objects_26 = src/tests/heap_checker_debug_unittest-heap-checker_unittest.$(OBJEXT) \
@WITH_HEAP_CHECKER_TRUE@	$(am__objects_25)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@am_heap_checker_debug_unittest_OBJECTS = $(am__objects_26)
heap_checker_debug_unittest_OBJECTS =  \
	$(am_heap_checker_debug_unittest_OBJECTS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_DEPENDENCIES = libtcmalloc_debug.la \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@	liblogging.la \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@	$(am__DEPENDENCIES_1)
heap_checker_debug_unittest_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(heap_checker_debug_unittest_CXXFLAGS) $(CXXFLAGS) \
	$(heap_checker_debug_unittest_LDFLAGS) $(LDFLAGS) -o $@
am__heap_checker_debug_unittest_sh_SOURCES_DIST =  \
	src/tests/heap-checker_unittest.sh
am_heap_checker_debug_unittest_sh_OBJECTS =
heap_checker_debug_unittest_sh_OBJECTS =  \
	$(am_heap_checker_debug_unittest_sh_OBJECTS)
heap_checker_debug_unittest_sh_LDADD = $(LDADD)
am__heap_checker_unittest_SOURCES_DIST =  \
	src/tests/heap-checker_unittest.cc src/config_for_unittests.h \
	src/memory_region_map.h src/base/commandlineflags.h \
	src/base/googleinit.h src/gperftools/heap-checker.h \
	src/base/logging.h src/base/basictypes.h \
	src/base/dynamic_annotations.h src/third_party/valgrind.h
@WITH_HEAP_CHECKER_TRUE@am_heap_checker_unittest_OBJECTS = src/tests/heap_checker_unittest-heap-checker_unittest.$(OBJEXT) \
@WITH_HEAP_CHECKER_TRUE@	$(am__objects_25)
heap_checker_unittest_OBJECTS = $(am_heap_checker_unittest_OBJECTS)
@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_DEPENDENCIES =  \
@WITH_HEAP_CHECKER_TRUE@	$(LIBTCMALLOC) liblogging.la \
@WITH_HEAP_CHECKER_TRUE@	$(am__DEPENDENCIES_1)
heap_checker_unittest_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(heap_checker_unittest_CXXFLAGS) $(CXXFLAGS) \
	$(heap_checker_unittest_LDFLAGS) $(LDFLAGS) -o $@
am__heap_checker_unittest_sh_SOURCES_DIST =  \
	src/tests/heap-checker_unittest.sh
am_heap_checker_unittest_sh_OBJECTS =
heap_checker_unittest_sh_OBJECTS =  \
	$(am_heap_checker_unittest_sh_OBJECTS)
heap_checker_unittest_sh_LDADD = $(LDADD)
am__heap_profiler_debug_unittest_SOURCES_DIST =  \
	src/tests/heap-profiler_unittest.cc src/config_for_unittests.h \
	src/gperftools/heap-profiler.h
@WITH_HEAP_PROFILER_TRUE@am__objects_27 = src/tests/heap_profiler_debug_unittest-heap-profiler_unittest.$(OBJEXT) \
@WITH_HEAP_PROFILER_TRUE@	$(am__objects_1)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@am_heap_profiler_debug_unittest_OBJECTS = $(am__objects_27)
heap_profiler_debug_unittest_OBJECTS =  \
	$(am_heap_profiler_debug_unittest_OBJECTS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_DEPENDENCIES = libtcmalloc_debug.la \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@	$(am__DEPENDENCIES_1)
heap_profiler_debug_unittest_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(heap_profiler_debug_unittest_CXXFLAGS) $(CXXFLAGS) \
	$(heap_profiler_debug_unittest_LDFLAGS) $(LDFLAGS) -o $@
am__heap_profiler_debug_unittest_sh_SOURCES_DIST =  \
	src/tests/heap-profiler_unittest.sh
am_heap_profiler_debug_unittest_sh_OBJECTS =
heap_profiler_debug_unittest_sh_OBJECTS =  \
	$(am_heap_profiler_debug_unittest_sh_OBJECTS)
heap_profiler_debug_unittest_sh_LDADD = $(LDADD)
am__heap_profiler_unittest_SOURCES_DIST =  \
	src/tests/heap-profiler_unittest.cc src/config_for_unittests.h \
	src/gperftools/heap-profiler.h
@WITH_HEAP_PROFILER_TRUE@am_heap_profiler_unittest_OBJECTS = src/tests/heap_profiler_unittest-heap-profiler_unittest.$(OBJEXT) \
@WITH_HEAP_PROFILER_TRUE@	$(am__objects_1)
heap_profiler_unittest_OBJECTS = $(am_heap_profiler_unittest_OBJECTS)
@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_DEPENDENCIES =  \
@WITH_HEAP_PROFILER_TRUE@	$(LIBTCMALLOC) $(am__DEPENDENCIES_1)
heap_profiler_unittest_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
	$(heap_profiler_unittest_CXXFLAGS) $(CXXFLAGS) \
	$(heap_profiler_unittest_LDFLAGS) $(LDFLAGS) -o $@
am__heap_profiler_unittest_sh_SOURCES_DIST =  \
	src/tests/heap-profiler_unittest.sh
am_heap_profiler_unittest_sh_OBJECTS =
heap_profiler_unittest_sh_OBJECTS =  \
	$(am_heap_profiler_unittest_sh_OBJECTS)
heap_profiler_unittest_sh_LDADD = $(LDADD)
am__low_level_alloc_unittest_SOURCES_DIST =  \
	src/base/low_level_alloc.cc src/malloc_hook.cc \
	src/tests/low_level_alloc_unittest.cc \
	src/base/low_level_alloc.h src/base/basictypes.h \
	src/gperftools/malloc_hook.h src/gperftools/malloc_hook_c.h \
	src/malloc_hook-inl.h src/malloc_hook_mmap_linux.h \
	src/malloc_hook_mmap_freebsd.h src/base/spinlock.h \
	src/base/spinlock_internal.h src/base/atomicops.h \
	src/base/atomicops-internals-macosx.h \
	src/base/atomicops-internals-linuxppc.h \
	src/base/atomicops-internals-windows.h \
	src/base/atomicops-internals-x86.h \
	src/base/spinlock_win32-inl.h src/base/spinlock_linux-inl.h \
	src/base/spinlock_posix-inl.h \
	src/base/synchronization_profiling.h \
	src/base/atomicops-internals-arm-generic.h \
	src/base/atomicops-internals-arm-v6plus.h \
	src/base/atomicops-internals-mips.h \
	src/base/atomicops-internals-gcc.h src/base/logging.h \
	src/base/commandlineflags.h src/base/dynamic_annotations.h \
	src/third_party/valgrind.h
am__objects_28 = $(am__objects_1) $(am__objects_1)
am_low_level_alloc_unittest_OBJECTS =  \
	src/base/low_level_alloc_unittest-low_level_alloc.$(OBJEXT) \
	src/low_level_alloc_unittest-malloc_hook.$(OBJEXT) \
	src/tests/low_level_alloc_unittest-low_level_alloc_unittest.$(OBJEXT) \
	$(am__objects_28)
low_level_alloc_unittest_OBJECTS =  \
	$(am_low_level_alloc_unittest_OBJECTS)
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	doc/tcmalloc-opspercpusec.vs.threads.2048.bytes.png \
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	doc/tcmalloc-opspercpusec.vs.threads.32768.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.4096.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.512.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.64.bytes.png \
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PACKAGE = @PACKAGE@
PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
PACKAGE_NAME = @PACKAGE_NAME@
PACKAGE_STRING = @PACKAGE_STRING@
PACKAGE_TARNAME = @PACKAGE_TARNAME@
PACKAGE_URL = @PACKAGE_URL@
PACKAGE_VERSION = @PACKAGE_VERSION@
PATH_SEPARATOR = @PATH_SEPARATOR@
PROFILER_SO_VERSION = @PROFILER_SO_VERSION@
PTHREAD_CC = @PTHREAD_CC@
PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
PTHREAD_LIBS = @PTHREAD_LIBS@
RANLIB = @RANLIB@
SED = @SED@
SET_MAKE = @SET_MAKE@
SHELL = @SHELL@
STRIP = @STRIP@
TCMALLOC_SO_VERSION = @TCMALLOC_SO_VERSION@
TC_VERSION_MAJOR = @TC_VERSION_MAJOR@
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UNWIND_LIBS = @UNWIND_LIBS@
VERSION = @VERSION@
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builddir = @builddir@
datadir = @datadir@
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docdir = $(prefix)/share/doc/$(PACKAGE)-$(VERSION)
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host = @host@
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# Make sure that when we re-make ./configure, we get the macros we need
ACLOCAL_AMFLAGS = -I m4
AUTOMAKE_OPTIONS = subdir-objects

# This is so we can #include 
AM_CPPFLAGS = -I$(top_srcdir)/src $(am__append_1)

# This is mostly based on configure options
AM_CXXFLAGS = $(am__append_2) $(am__append_4) $(am__append_5) \
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NO_BUILTIN_CXXFLAGS = $(am__append_3)

# The -no-undefined flag allows libtool to generate shared libraries for
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AM_LDFLAGS = -no-undefined $(LIBSTDCXX_LA_LINKER_FLAG)
@GCC_FALSE@NO_EXCEPTIONS = 

# We know our low-level code cannot trigger an exception.  On some
# systems, such as cygwin, it would be disastrous if they did, because
# the exception handler might call malloc!  If our low-level routines
# raised an exception within the malloc, they'd deadlock.  Luckily,
# we control all this code, and do not need exceptions for it.
@GCC_TRUE@NO_EXCEPTIONS = -fno-exceptions

# For windows systems (at least, mingw), we need to tell all our
# tests to link in libtcmalloc using -u.  This is because libtcmalloc
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# to identify, so the linker will ignore libtcmalloc by default unless
# we explicitly create a dependency via -u.
TCMALLOC_FLAGS = $(am__append_8)
@HAVE_OBJCOPY_WEAKEN_FALSE@WEAKEN = :

# If we have objcopy, make malloc/free/etc weak symbols.  That way folks
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# Note: the weird-looking symbols are the c++ memory functions:
# (in order) new, new(nothrow), new[], new[](nothrow), delete, delete[]
# In theory this will break if mangling changes, but that seems pretty
# unlikely at this point.  Just in case, I throw in versions with an
# extra underscore as well, which may help on OS X.
@HAVE_OBJCOPY_WEAKEN_TRUE@WEAKEN = $(OBJCOPY) -W malloc -W free -W realloc -W calloc -W cfree \
@HAVE_OBJCOPY_WEAKEN_TRUE@         -W memalign -W posix_memalign -W valloc -W pvalloc \
@HAVE_OBJCOPY_WEAKEN_TRUE@         -W malloc_stats -W mallopt -W mallinfo \
@HAVE_OBJCOPY_WEAKEN_TRUE@         -W _Znwm -W _ZnwmRKSt9nothrow_t -W _Znam -W _ZnamRKSt9nothrow_t \
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@HAVE_OBJCOPY_WEAKEN_TRUE@         -W __ZdlPv -W __ZdaPv

LIBS_TO_WEAKEN = libtcmalloc_minimal.la $(am__append_28) \
	$(am__append_41) $(am__append_58) $(am__append_73)
perftoolsincludedir = $(includedir)/gperftools
# The .h files you want to install (that is, .h files that people
# who install this package can include in their own applications.)
# We'll add to this later, on a library-by-library basis
perftoolsinclude_HEADERS = $(am__append_14) \
	$(SG_TCMALLOC_MINIMAL_INCLUDES) $(am__append_35) \
	$(am__append_65)
# tcmalloc.h is a special case, because it's a .h.in file
nodist_perftoolsinclude_HEADERS = src/gperftools/tcmalloc.h
noinst_HEADERS = src/gperftools/tcmalloc.h.in

# This is provided for backwards compatibility.  It is populated by
# files that just forward to the canonical location in
# perftoolsincludedir.
googleincludedir = $(includedir)/google
googleinclude_HEADERS = \
   src/google/heap-checker.h			\
   src/google/heap-profiler.h			\
   src/google/malloc_extension.h		\
   src/google/malloc_extension_c.h		\
   src/google/malloc_hook.h			\
   src/google/malloc_hook_c.h			\
   src/google/profiler.h			\
   src/google/stacktrace.h			\
   src/google/tcmalloc.h

# This is for HTML and other documentation you want to install.
# Add your documentation files (in doc/) in addition to these
# top-level boilerplate files.  Also add a TODO file if you have one.
# We'll add to this later, on a library-by-library basis

### Documentation

# I don't know how to say "distribute the .dot files but don't install them";
# noinst doesn't seem to work with data.  I separate them out anyway, in case
# one day we figure it out.  Regardless, installing the dot files isn't the
# end of the world.
dist_doc_DATA = AUTHORS COPYING ChangeLog INSTALL NEWS README \
	README_windows.txt TODO doc/index.html doc/designstyle.css \
	$(am__append_17) doc/tcmalloc.html doc/overview.gif \
	doc/pageheap.gif doc/spanmap.gif doc/threadheap.gif \
	doc/t-test1.times.txt \
	doc/tcmalloc-opspercpusec.vs.threads.1024.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.128.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.131072.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.16384.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.2048.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.256.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.32768.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.4096.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.512.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.64.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.65536.bytes.png \
	doc/tcmalloc-opspercpusec.vs.threads.8192.bytes.png \
	doc/tcmalloc-opspersec.vs.size.1.threads.png \
	doc/tcmalloc-opspersec.vs.size.12.threads.png \
	doc/tcmalloc-opspersec.vs.size.16.threads.png \
	doc/tcmalloc-opspersec.vs.size.2.threads.png \
	doc/tcmalloc-opspersec.vs.size.20.threads.png \
	doc/tcmalloc-opspersec.vs.size.3.threads.png \
	doc/tcmalloc-opspersec.vs.size.4.threads.png \
	doc/tcmalloc-opspersec.vs.size.5.threads.png \
	doc/tcmalloc-opspersec.vs.size.8.threads.png doc/overview.dot \
	doc/pageheap.dot doc/spanmap.dot doc/threadheap.dot \
	$(am__append_55) $(am__append_56) $(am__append_70)

# The libraries (.so's) you want to install
# We'll add to this later, on a library-by-library basis
lib_LTLIBRARIES = libtcmalloc_minimal.la $(am__append_27) \
	$(am__append_37) $(am__append_57) $(am__append_66) \
	$(am__append_71)
# This is for 'convenience libraries' -- basically just a container for sources

### Making the library

# As we describe at the top of this file, we want to turn off exceptions
# for all files in this library -- except tcmalloc.cc which needs them
# to fulfill its API.  Automake doesn't allow per-file CXXFLAGS, so we need
# to separate into two libraries.
noinst_LTLIBRARIES = liblogging.la libsysinfo.la libmaybe_threads.la \
	$(am__append_9) $(am__append_12) $(am__append_15) \
	libtcmalloc_minimal_internal.la $(am__append_36)

# Add this whether or not we're under MinGW, to keep the tarball complete.
# Because we've commented out the test, above, we have to explicitly add
# the test files to the tarball or automake will leave them out.
WINDOWS_PROJECTS = gperftools.sln \
	vsprojects/preamble_patcher_test/preamble_patcher_test.vcproj \
	src/windows/preamble_patcher_test.cc src/windows/shortproc.asm \
	src/windows/auto_testing_hook.h \
	vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj \
	$(am__append_19) \
	vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj \
	vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcproj \
	vsprojects/tmu-static/tmu-static.vcproj \
	vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcproj \
	vsprojects/addressmap_unittest/addressmap_unittest.vcproj \
	vsprojects/system-alloc_unittest/system-alloc_unittest.vcproj \
	vsprojects/packed-cache_test/packed-cache_test.vcproj \
	vsprojects/frag_unittest/frag_unittest.vcproj \
	vsprojects/markidle_unittest/markidle_unittest.vcproj \
	vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcproj \
	vsprojects/malloc_hook_test/malloc_hook_test.vcproj \
	vsprojects/malloc_extension_test/malloc_extension_test.vcproj \
	vsprojects/page_heap_test/page_heap_test.vcproj \
	vsprojects/pagemap_unittest/pagemap_unittest.vcproj \
	vsprojects/realloc_unittest/realloc_unittest.vcproj \
	vsprojects/stack_trace_table_test/stack_trace_table_test.vcproj \
	vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcproj \
	$(am__append_48)
# TESTS_ENVIRONMENT sets environment variables for when you run unittest.
# We always get "srcdir" set for free.
# We'll add to this later, on a library-by-library basis.
TESTS_ENVIRONMENT = $(am__append_18) $(am__append_47)
# All script tests should be added here
noinst_SCRIPTS = $(am__append_21) $(am__append_33) $(am__append_43) \
	$(am__append_50) $(am__append_53) $(am__append_68)

# This is my own var, used for extra libraries I make that I need installed
EXTRA_INSTALL = 

### ------- library routines, in src/base

# This is a 'convenience library' -- it's not actually installed or anything
LOGGING_INCLUDES = src/base/logging.h \
                   src/base/commandlineflags.h \
                   src/base/basictypes.h \
                   src/base/dynamic_annotations.h \
                   src/third_party/valgrind.h

liblogging_la_SOURCES = src/base/logging.cc \
                        src/base/dynamic_annotations.c \
                        $(LOGGING_INCLUDES)

SYSINFO_INCLUDES = src/base/sysinfo.h \
                   src/getenv_safe.h \
                   src/base/logging.h \
                   src/base/commandlineflags.h \
                   src/base/cycleclock.h \
                   src/base/arm_instruction_set_select.h \
                   src/base/basictypes.h

libsysinfo_la_SOURCES = src/base/sysinfo.cc \
                        $(SYSINFO_INCLUDES)

libsysinfo_la_LIBADD = $(NANOSLEEP_LIBS) $(am__append_10)
# .cc is conditionally added below
libmaybe_threads_la_SOURCES = src/maybe_threads.h $(am__append_11) \
	$(am__append_13)

# For MinGW, we use also have to use libwindows Luckily, we need the
# windows.a library in exactly the same place we need spinlock.a
# (pretty much everywhere), so we can use the same variable name for
# each.  We can also optimize the MinGW rule a bit by leaving out
# files we know aren't used on windows, such as
# atomicops-internals-x86.cc.  libwindows also obsoletes the need for
# other files like system_alloc.cc.
@MINGW_TRUE@WINDOWS_INCLUDES = src/windows/port.h \
@MINGW_TRUE@                   src/windows/mingw.h \
@MINGW_TRUE@                   src/windows/mini_disassembler.h \
@MINGW_TRUE@                   src/windows/mini_disassembler_types.h \
@MINGW_TRUE@                   src/windows/preamble_patcher.h

@MINGW_TRUE@libwindows_la_SOURCES = $(WINDOWS_INCLUDES) \
@MINGW_TRUE@                        src/windows/port.cc \
@MINGW_TRUE@                        src/windows/system-alloc.cc \
@MINGW_TRUE@                        src/windows/ia32_modrm_map.cc \
@MINGW_TRUE@                        src/windows/ia32_opcode_map.cc \
@MINGW_TRUE@                        src/windows/mini_disassembler.cc \
@MINGW_TRUE@                        src/windows/patch_functions.cc \
@MINGW_TRUE@                        src/windows/preamble_patcher.cc \
@MINGW_TRUE@                        src/windows/preamble_patcher_with_stub.cc

# patch_functions.cc uses Psapi.lib.  MSVC has a #pragma for that, but not us.
@MINGW_TRUE@libwindows_la_LIBADD = -lpsapi
# spinlock is the only code that uses atomicops.
@MINGW_FALSE@SPINLOCK_INCLUDES = src/base/spinlock.h \
@MINGW_FALSE@                    src/base/spinlock_internal.h \
@MINGW_FALSE@                    src/base/atomicops.h \
@MINGW_FALSE@                    src/base/atomicops-internals-macosx.h \
@MINGW_FALSE@                    src/base/atomicops-internals-linuxppc.h \
@MINGW_FALSE@                    src/base/atomicops-internals-windows.h \
@MINGW_FALSE@                    src/base/atomicops-internals-x86.h

@MINGW_TRUE@SPINLOCK_INCLUDES = src/base/spinlock.h \
@MINGW_TRUE@                    src/base/spinlock_internal.h \
@MINGW_TRUE@                    src/base/spinlock_win32-inl.h \
@MINGW_TRUE@                    src/base/spinlock_linux-inl.h \
@MINGW_TRUE@                    src/base/spinlock_posix-inl.h \
@MINGW_TRUE@                    src/base/synchronization_profiling.h \
@MINGW_TRUE@                    src/base/atomicops-internals-macosx.h \
@MINGW_TRUE@                    src/base/atomicops-internals-linuxppc.h \
@MINGW_TRUE@                    src/base/atomicops-internals-arm-generic.h \
@MINGW_TRUE@                    src/base/atomicops-internals-arm-v6plus.h \
@MINGW_TRUE@                    src/base/atomicops-internals-mips.h \
@MINGW_TRUE@                    src/base/atomicops-internals-windows.h \
@MINGW_TRUE@                    src/base/atomicops-internals-gcc.h \
@MINGW_TRUE@                    src/base/atomicops-internals-x86.h

@MINGW_FALSE@libspinlock_la_SOURCES = src/base/spinlock.cc \
@MINGW_FALSE@                         src/base/spinlock_internal.cc \
@MINGW_FALSE@                         src/base/atomicops-internals-x86.cc \
@MINGW_FALSE@                         $(SPINLOCK_INCLUDES)

@MINGW_TRUE@libspinlock_la_SOURCES = src/base/spinlock.cc \
@MINGW_TRUE@                         src/base/spinlock_internal.cc \
@MINGW_TRUE@                         src/base/atomicops-internals-x86.cc \
@MINGW_TRUE@                         $(SPINLOCK_INCLUDES)

# spinlock also needs NumCPUs, from libsysinfo, which in turn needs liblogging
@MINGW_FALSE@LIBSPINLOCK = libspinlock.la libsysinfo.la liblogging.la
@MINGW_TRUE@LIBSPINLOCK = libwindows.la libspinlock.la libsysinfo.la liblogging.la
@MINGW_FALSE@TCMALLOC_CC = src/tcmalloc.cc

# There's a windows-specific unittest we can run.  Right now it's
# win64-specific, and relies on masm, so we comment it out.

# patch_functions.cc #includes tcmalloc.cc, so no need to link it in.
@MINGW_TRUE@TCMALLOC_CC = 
@MINGW_FALSE@SYSTEM_ALLOC_CC = src/system-alloc.cc
@MINGW_TRUE@SYSTEM_ALLOC_CC = 
@MINGW_FALSE@libspinlock_la_LIBADD = $(NANOSLEEP_LIBS)
LOW_LEVEL_ALLOC_UNITTEST_INCLUDES = src/base/low_level_alloc.h \
                                    src/base/basictypes.h \
                                    src/gperftools/malloc_hook.h \
                                    src/gperftools/malloc_hook_c.h \
                                    src/malloc_hook-inl.h \
                                    src/malloc_hook_mmap_linux.h \
                                    src/malloc_hook_mmap_freebsd.h \
                                    $(SPINLOCK_INCLUDES) \
                                    $(LOGGING_INCLUDES)

low_level_alloc_unittest_SOURCES = src/base/low_level_alloc.cc \
                                   src/malloc_hook.cc \
                                   src/tests/low_level_alloc_unittest.cc \
                                   $(LOW_LEVEL_ALLOC_UNITTEST_INCLUDES)

# By default, MallocHook takes stack traces for use by the heap-checker.
# We don't need that functionality here, so we turn it off to reduce deps.
low_level_alloc_unittest_CXXFLAGS = -DNO_TCMALLOC_SAMPLES
low_level_alloc_unittest_LDADD = $(LIBSPINLOCK) libmaybe_threads.la
ATOMICOPS_UNITTEST_INCLUDES = src/base/atomicops.h \
                              src/base/atomicops-internals-macosx.h \
                              src/base/atomicops-internals-windows.h \
                              src/base/atomicops-internals-x86.h \
                              $(LOGGING_INCLUDES)

atomicops_unittest_SOURCES = src/tests/atomicops_unittest.cc \
                             $(ATOMICOPS_UNITTEST_INCLUDES)

atomicops_unittest_LDADD = $(LIBSPINLOCK)

### ------- stack trace

### The header files we use.  We divide into categories based on directory
@WITH_STACK_TRACE_TRUE@S_STACKTRACE_INCLUDES = src/stacktrace_impl_setup-inl.h \
@WITH_STACK_TRACE_TRUE@                        src/stacktrace_generic-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_libunwind-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_arm-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_powerpc-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_powerpc-darwin-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_powerpc-linux-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_x86-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_win32-inl.h \
@WITH_STACK_TRACE_TRUE@			src/stacktrace_instrument-inl.h \
@WITH_STACK_TRACE_TRUE@                        src/base/elf_mem_image.h \
@WITH_STACK_TRACE_TRUE@                        src/base/vdso_support.h

@WITH_STACK_TRACE_TRUE@SG_STACKTRACE_INCLUDES = src/gperftools/stacktrace.h
@WITH_STACK_TRACE_TRUE@STACKTRACE_INCLUDES = $(S_STACKTRACE_INCLUDES) $(SG_STACKTRACE_INCLUDES)
@WITH_STACK_TRACE_TRUE@libstacktrace_la_SOURCES = src/stacktrace.cc \
@WITH_STACK_TRACE_TRUE@                           src/base/elf_mem_image.cc \
@WITH_STACK_TRACE_TRUE@                           src/base/vdso_support.cc \
@WITH_STACK_TRACE_TRUE@                           $(STACKTRACE_INCLUDES)

@WITH_STACK_TRACE_TRUE@libstacktrace_la_LIBADD = $(UNWIND_LIBS) $(LIBSPINLOCK)
@WITH_STACK_TRACE_TRUE@STACKTRACE_SYMBOLS = '(GetStackTrace|GetStackFrames|GetStackTraceWithContext|GetStackFramesWithContext)'
@WITH_STACK_TRACE_TRUE@libstacktrace_la_LDFLAGS = -export-symbols-regex $(STACKTRACE_SYMBOLS) $(AM_LDFLAGS)
@WITH_STACK_TRACE_TRUE@STACKTRACE_UNITTEST_INCLUDES = src/config_for_unittests.h \
@WITH_STACK_TRACE_TRUE@                               src/base/commandlineflags.h \
@WITH_STACK_TRACE_TRUE@                               $(STACKTRACE_INCLUDES) \
@WITH_STACK_TRACE_TRUE@                               $(LOGGING_INCLUDES)

@WITH_STACK_TRACE_TRUE@stacktrace_unittest_SOURCES = src/tests/stacktrace_unittest.cc \
@WITH_STACK_TRACE_TRUE@                              $(STACKTRACE_UNITTEST_INCLUDES)

@WITH_STACK_TRACE_TRUE@stacktrace_unittest_LDADD = libstacktrace.la liblogging.la

### ------- pprof

# If we are not compiling with stacktrace support, pprof is worthless
@WITH_STACK_TRACE_TRUE@bin_SCRIPTS = src/pprof

### Unittests
@WITH_STACK_TRACE_TRUE@check_SCRIPTS = pprof_unittest

### Documentation
@WITH_STACK_TRACE_TRUE@dist_man_MANS = doc/pprof.1

### ------- tcmalloc_minimal (thread-caching malloc)

### The header files we use.  We divide into categories based on directory
S_TCMALLOC_MINIMAL_INCLUDES = src/common.h \
                              src/internal_logging.h \
                              src/system-alloc.h \
                              src/packed-cache-inl.h \
                              $(SPINLOCK_INCLUDES) \
                              src/tcmalloc_guard.h \
                              src/base/commandlineflags.h \
                              src/base/basictypes.h \
                              src/pagemap.h \
                              src/sampler.h \
                              src/central_freelist.h \
                              src/linked_list.h \
                              src/libc_override.h \
                              src/libc_override_gcc_and_weak.h \
                              src/libc_override_glibc.h \
                              src/libc_override_osx.h \
                              src/libc_override_redefine.h \
                              src/page_heap.h \
                              src/page_heap_allocator.h \
                              src/span.h \
                              src/static_vars.h \
                              src/symbolize.h \
                              src/thread_cache.h \
                              src/stack_trace_table.h \
                              src/base/thread_annotations.h \
                              src/malloc_hook-inl.h \
                              src/malloc_hook_mmap_linux.h \
                              src/malloc_hook_mmap_freebsd.h

SG_TCMALLOC_MINIMAL_INCLUDES = src/gperftools/malloc_hook.h \
                               src/gperftools/malloc_hook_c.h \
                               src/gperftools/malloc_extension.h \
                               src/gperftools/malloc_extension_c.h

TCMALLOC_MINIMAL_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) $(SG_STACKTRACE_INCLUDES)
libtcmalloc_minimal_internal_la_SOURCES = src/common.cc \
                                          src/internal_logging.cc \
                                          $(SYSTEM_ALLOC_CC) \
                                          src/memfs_malloc.cc \
                                          src/central_freelist.cc \
                                          src/page_heap.cc \
                                          src/sampler.cc \
                                          src/span.cc \
                                          src/stack_trace_table.cc \
                                          src/static_vars.cc \
                                          src/symbolize.cc \
                                          src/thread_cache.cc \
                                          src/malloc_hook.cc \
                                          src/malloc_extension.cc \
                                          $(TCMALLOC_MINIMAL_INCLUDES)

# We #define NO_TCMALLOC_SAMPLES, since sampling is turned off for _minimal.
libtcmalloc_minimal_internal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \
                                           -DNO_HEAP_CHECK \
                                           $(PTHREAD_CFLAGS) -DNDEBUG \
                                           $(AM_CXXFLAGS) $(NO_EXCEPTIONS)

libtcmalloc_minimal_internal_la_LDFLAGS = $(PTHREAD_CFLAGS) $(AM_LDFLAGS)
libtcmalloc_minimal_internal_la_LIBADD = $(PTHREAD_LIBS) $(LIBSPINLOCK) libmaybe_threads.la
libtcmalloc_minimal_la_SOURCES = $(TCMALLOC_CC) $(TCMALLOC_MINIMAL_INCLUDES)
libtcmalloc_minimal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \
                                  $(PTHREAD_CFLAGS) -DNDEBUG $(AM_CXXFLAGS)

# -version-info gets passed to libtool
libtcmalloc_minimal_la_LDFLAGS = $(PTHREAD_CFLAGS) -version-info @TCMALLOC_SO_VERSION@ $(AM_LDFLAGS)
libtcmalloc_minimal_la_LIBADD = libtcmalloc_minimal_internal.la $(PTHREAD_LIBS)
@MINGW_FALSE@LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la

# For windows, we're playing around with trying to do some stacktrace
# support even with libtcmalloc_minimal.  For everyone else, though,
# we turn off all stack-trace activity for libtcmalloc_minimal.
# TODO(csilvers): when we're done experimenting, do something principled here
@MINGW_TRUE@LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la libstacktrace.la
tcmalloc_minimal_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \
                                    src/tests/testutil.h src/tests/testutil.cc \
                                    $(TCMALLOC_UNITTEST_INCLUDES)

tcmalloc_minimal_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_minimal_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
tcmalloc_minimal_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) \
                                  liblogging.la $(PTHREAD_LIBS)

tcmalloc_minimal_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc
tcmalloc_minimal_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_minimal_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
tcmalloc_minimal_large_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
tcmalloc_minimal_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc
tcmalloc_minimal_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_minimal_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
tcmalloc_minimal_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
@ENABLE_STATIC_FALSE@@MINGW_FALSE@maybe_threads_unittest_sh_SOURCES = src/tests/maybe_threads_unittest.sh
ADDRESSMAP_UNITTEST_INCLUDES = src/addressmap-inl.h \
                               src/base/commandlineflags.h \
                               $(LOGGING_INCLUDES)

addressmap_unittest_SOURCES = src/tests/addressmap_unittest.cc \
	$(ADDRESSMAP_UNITTEST_INCLUDES) $(am__append_22)
addressmap_unittest_CXXFLAGS = -g $(AM_CXXFLAGS)
addressmap_unittest_LDADD = liblogging.la
@MINGW_FALSE@system_alloc_unittest_SOURCES = src/config_for_unittests.h \
@MINGW_FALSE@                                src/tests/system-alloc_unittest.cc

@MINGW_FALSE@system_alloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@MINGW_FALSE@system_alloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@MINGW_FALSE@system_alloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
packed_cache_test_SOURCES = src/tests/packed-cache_test.cc
packed_cache_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
packed_cache_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
packed_cache_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
frag_unittest_SOURCES = src/tests/frag_unittest.cc src/config_for_unittests.h
frag_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
frag_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
frag_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
markidle_unittest_SOURCES = src/tests/markidle_unittest.cc \
                            src/config_for_unittests.h \
                            src/tests/testutil.h src/tests/testutil.cc

markidle_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
markidle_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
markidle_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
current_allocated_bytes_test_SOURCES = src/tests/current_allocated_bytes_test.cc \
                                       src/config_for_unittests.h

current_allocated_bytes_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
current_allocated_bytes_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
current_allocated_bytes_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
malloc_hook_test_SOURCES = src/tests/malloc_hook_test.cc \
                           src/config_for_unittests.h \
                           src/base/logging.h \
                           src/gperftools/malloc_hook.h \
                           src/tests/testutil.h src/tests/testutil.cc

malloc_hook_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
malloc_hook_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
malloc_hook_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
malloc_extension_test_SOURCES = src/tests/malloc_extension_test.cc \
                                src/config_for_unittests.h \
                                src/base/logging.h \
                                src/gperftools/malloc_extension.h \
                                src/gperftools/malloc_extension_c.h

malloc_extension_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
malloc_extension_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
malloc_extension_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
@MINGW_FALSE@malloc_extension_c_test_SOURCES = src/tests/malloc_extension_c_test.c \
@MINGW_FALSE@                                  src/gperftools/malloc_extension.h \
@MINGW_FALSE@                                  src/gperftools/malloc_extension_c.h

@MINGW_FALSE@malloc_extension_c_test_CFLAGS = $(PTHREAD_CFLAGS) \
@MINGW_FALSE@	$(AM_CFLAGS) $(am__append_25)
@MINGW_FALSE@malloc_extension_c_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@MINGW_FALSE@malloc_extension_c_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) -lstdc++ -lm
@MINGW_FALSE@@OSX_FALSE@memalign_unittest_SOURCES = src/tests/memalign_unittest.cc \
@MINGW_FALSE@@OSX_FALSE@                            src/tcmalloc.h \
@MINGW_FALSE@@OSX_FALSE@                            src/config_for_unittests.h \
@MINGW_FALSE@@OSX_FALSE@                            src/tests/testutil.h src/tests/testutil.cc

@MINGW_FALSE@@OSX_FALSE@memalign_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@MINGW_FALSE@@OSX_FALSE@memalign_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@MINGW_FALSE@@OSX_FALSE@memalign_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
page_heap_test_SOURCES = src/tests/page_heap_test.cc \
                         src/config_for_unittests.h \
                         src/base/logging.h \
                         src/common.h \
                         src/page_heap.h

page_heap_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
page_heap_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
page_heap_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
pagemap_unittest_SOURCES = src/tests/pagemap_unittest.cc \
                           src/config_for_unittests.h \
                           src/base/logging.h \
                           src/pagemap.h

pagemap_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
pagemap_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
pagemap_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
realloc_unittest_SOURCES = src/tests/realloc_unittest.cc \
                           src/config_for_unittests.h \
                           src/base/logging.h

realloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
realloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
realloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
stack_trace_table_test_SOURCES = src/tests/stack_trace_table_test.cc \
                                 src/config_for_unittests.h

stack_trace_table_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
stack_trace_table_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
stack_trace_table_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
thread_dealloc_unittest_SOURCES = src/tests/thread_dealloc_unittest.cc \
                                  src/config_for_unittests.h \
                                  src/tests/testutil.h src/tests/testutil.cc

thread_dealloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
thread_dealloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
thread_dealloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_SOURCES = src/debugallocation.cc \
@WITH_DEBUGALLOC_TRUE@                                       $(TCMALLOC_MINIMAL_INCLUDES)

@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_CXXFLAGS = $(libtcmalloc_minimal_la_CXXFLAGS) \
@WITH_DEBUGALLOC_TRUE@                                        -DTCMALLOC_FOR_DEBUGALLOCATION

# version_info gets passed to libtool
@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_LDFLAGS = $(libtcmalloc_minimal_la_LDFLAGS) \
@WITH_DEBUGALLOC_TRUE@                                       -version-info @TCMALLOC_SO_VERSION@

@WITH_DEBUGALLOC_TRUE@libtcmalloc_minimal_debug_la_LIBADD = $(libtcmalloc_minimal_la_LIBADD)
@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_SOURCES = $(tcmalloc_minimal_unittest_SOURCES)
@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_CXXFLAGS = $(tcmalloc_minimal_unittest_CXXFLAGS) \
@WITH_DEBUGALLOC_TRUE@                                           -DDEBUGALLOCATION

@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_LDFLAGS = $(tcmalloc_minimal_unittest_LDFLAGS)
@WITH_DEBUGALLOC_TRUE@tcmalloc_minimal_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_SOURCES = $(malloc_extension_test_SOURCES)
@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_CXXFLAGS = $(malloc_extension_test_CXXFLAGS)
@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_LDFLAGS = $(malloc_extension_test_LDFLAGS)
@WITH_DEBUGALLOC_TRUE@malloc_extension_debug_test_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)
@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_SOURCES = $(memalign_unittest_SOURCES)
@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_CXXFLAGS = $(memalign_unittest_CXXFLAGS)
@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_LDFLAGS = $(memalign_unittest_LDFLAGS)
@MINGW_FALSE@@OSX_FALSE@@WITH_DEBUGALLOC_TRUE@memalign_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_SOURCES = $(realloc_unittest_SOURCES)
@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_CXXFLAGS = $(realloc_unittest_CXXFLAGS)
@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_LDFLAGS = $(realloc_unittest_LDFLAGS)
@WITH_DEBUGALLOC_TRUE@realloc_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_sh_SOURCES = src/tests/debugallocation_test.sh
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_SOURCES = src/tests/debugallocation_test.cc
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)

### ------- tcmalloc (thread-caching malloc + heap profiler + heap checker)

### The header files we use.  We divide into categories based on directory
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@S_TCMALLOC_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      $(LOGGING_INCLUDES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/addressmap-inl.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/raw_printer.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/base/elfcore.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/base/googleinit.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/base/linux_syscall_support.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/base/linuxthreads.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/base/stl_allocator.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/base/sysinfo.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/base/thread_lister.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/heap-profile-table.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                      src/heap-profile-stats.h

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@SG_TCMALLOC_INCLUDES = src/gperftools/heap-profiler.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                       src/gperftools/heap-checker.h

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@TCMALLOC_INCLUDES = $(S_TCMALLOC_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@		    $(SG_TCMALLOC_INCLUDES) $(SG_STACKTRACE_INCLUDES)

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_SOURCES = $(libtcmalloc_minimal_internal_la_SOURCES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                  $(TCMALLOC_INCLUDES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                  src/base/low_level_alloc.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                  src/heap-profile-table.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                  src/heap-profiler.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                  src/raw_printer.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                  src/memory_region_map.cc

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_CXXFLAGS =  \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(PTHREAD_CFLAGS) -DNDEBUG \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(AM_CXXFLAGS) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(NO_EXCEPTIONS) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(am__append_39)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_LDFLAGS = $(PTHREAD_CFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_internal_la_LIBADD = libstacktrace.la $(PTHREAD_LIBS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_SOURCES =  \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(TCMALLOC_CC) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(TCMALLOC_INCLUDES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(am__append_38)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_CXXFLAGS =  \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(PTHREAD_CFLAGS) -DNDEBUG \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(AM_CXXFLAGS) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	$(am__append_40)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_LDFLAGS = $(PTHREAD_CFLAGS) -version-info @TCMALLOC_SO_VERSION@
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_la_LIBADD = libtcmalloc_internal.la libmaybe_threads.la $(PTHREAD_LIBS)
@WITH_HEAP_CHECKER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@HEAP_CHECKER_SOURCES = 

# heap-checker-bcad is last, in hopes its global ctor will run first.
# (Note this is added to libtcmalloc.la, not libtcmalloc_internal.la,
# but that's ok; the internal/external distinction is only useful for
# cygwin, and cygwin doesn't use HEAP_CHECKER anyway.)
@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@HEAP_CHECKER_SOURCES = src/base/thread_lister.c \
@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                       src/base/linuxthreads.cc \
@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                       src/heap-checker.cc \
@WITH_HEAP_CHECKER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                       src/heap-checker-bcad.cc

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@LIBTCMALLOC = libtcmalloc.la
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_sh_SOURCES = src/tests/tcmalloc_unittest.sh
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_INCLUDES = src/config_for_unittests.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                             src/gperftools/malloc_extension.h

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                            src/tcmalloc.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                            src/tests/testutil.h src/tests/testutil.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                            $(TCMALLOC_UNITTEST_INCLUDES)

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS)

# This makes sure it's safe to link in both tcmalloc and
# tcmalloc_minimal.  (One would never do this on purpose, but perhaps
# by accident...)  When we can compile libprofiler, we also link it in
# to make sure that works too.  NOTE: On OS X, it's *not* safe to
# link both in (we end up with two copies of every global var, and
# the code tends to pick one arbitrarily), so don't run the test there.
# (We define these outside the 'if' because they're reused below.)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_srcs = src/tests/tcmalloc_unittest.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                              src/tests/testutil.h src/tests/testutil.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                              $(TCMALLOC_UNITTEST_INCLUDES)

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_cflags = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_lflags = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_CPU_PROFILER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \
@WITH_CPU_PROFILER_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                              liblogging.la $(PTHREAD_LIBS)

# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                              libprofiler.la liblogging.la $(PTHREAD_LIBS)

@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_SOURCES = $(tcmalloc_both_unittest_srcs)
@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags)
@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags)
@OSX_FALSE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_both_unittest_LDADD = $(tcmalloc_both_unittest_ladd)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_SOURCES = src/tests/raw_printer_test.cc
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@raw_printer_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_SOURCES = src/tests/sampler_test.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                       src/config_for_unittests.h

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) -lm
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_sh_SOURCES = src/tests/sampling_test.sh
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@SAMPLING_TEST_INCLUDES = src/config_for_unittests.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                         src/base/logging.h \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                         src/gperftools/malloc_extension.h

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_SOURCES = src/tests/sampling_test.cc \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                        $(SAMPLING_TEST_INCLUDES)

@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)
@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh
@WITH_HEAP_PROFILER_TRUE@HEAP_PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \
@WITH_HEAP_PROFILER_TRUE@                                  src/gperftools/heap-profiler.h

@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_SOURCES = src/tests/heap-profiler_unittest.cc \
@WITH_HEAP_PROFILER_TRUE@                                 $(HEAP_PROFILER_UNITTEST_INCLUDES)

@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
@WITH_HEAP_PROFILER_TRUE@heap_profiler_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)
@WITH_HEAP_PROFILER_TRUE@simple_compat_test_SOURCES = src/tests/simple_compat_test.cc \
@WITH_HEAP_PROFILER_TRUE@                             $(googleinclude_HEADERS)

@WITH_HEAP_PROFILER_TRUE@simple_compat_test_LDFLAGS = $(TCMALLOC_FLAGS)
@WITH_HEAP_PROFILER_TRUE@simple_compat_test_LDADD = $(LIBTCMALLOC)
@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh
@WITH_HEAP_CHECKER_TRUE@heap_checker_death_unittest_sh_SOURCES = src/tests/heap-checker-death_unittest.sh
@WITH_HEAP_CHECKER_TRUE@HEAP_CHECKER_UNITTEST_INCLUDES = src/config_for_unittests.h \
@WITH_HEAP_CHECKER_TRUE@                                 src/memory_region_map.h \
@WITH_HEAP_CHECKER_TRUE@                                 src/base/commandlineflags.h \
@WITH_HEAP_CHECKER_TRUE@                                 src/base/googleinit.h \
@WITH_HEAP_CHECKER_TRUE@                                 src/gperftools/heap-checker.h \
@WITH_HEAP_CHECKER_TRUE@                                 $(LOGGING_INCLUDES)

@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_SOURCES = src/tests/heap-checker_unittest.cc \
@WITH_HEAP_CHECKER_TRUE@                                $(HEAP_CHECKER_UNITTEST_INCLUDES)

@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
@WITH_HEAP_CHECKER_TRUE@heap_checker_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_SOURCES = src/debugallocation.cc $(HEAP_CHECKER_SOURCES) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                               $(TCMALLOC_INCLUDES)

@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                -DTCMALLOC_FOR_DEBUGALLOCATION

@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_LDFLAGS = $(libtcmalloc_la_LDFLAGS) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                               -version-info @TCMALLOC_SO_VERSION@

@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_debug_la_LIBADD = $(libtcmalloc_la_LIBADD)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_SOURCES = $(tcmalloc_unittest_SOURCES)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_CXXFLAGS = $(tcmalloc_unittest_CXXFLAGS) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                   -DDEBUGALLOCATION

@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_LDFLAGS = $(tcmalloc_unittest_LDFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_SOURCES = $(sampler_test_SOURCES)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_CXXFLAGS = $(samples_test_CXXFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_LDFLAGS = $(sampler_test_LDFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampler_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) -lm
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_sh_SOURCES = src/tests/sampling_test.sh
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_SOURCES = $(sampling_test_SOURCES)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_CXXFLAGS = $(sampling_test_CXXFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_LDFLAGS = $(sampling_test_LDFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_SOURCES = $(heap_profiler_unittest_SOURCES)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_CXXFLAGS = $(heap_profiler_unittest_CXXFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_LDFLAGS = $(heap_profiler_unittest_LDFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap_profiler_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_SOURCES = $(heap_checker_unittest_SOURCES)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_CXXFLAGS = $(heap_checker_unittest_CXXFLAGS)
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_LDFLAGS = $(heap_checker_unittest_LDFLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap_checker_debug_unittest_LDADD = libtcmalloc_debug.la liblogging.la \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@                                    $(PTHREAD_LIBS)


### ------- CPU profiler

### The header files we use.  We divide into categories based on directory
@WITH_CPU_PROFILER_TRUE@S_CPU_PROFILER_INCLUDES = src/profiledata.h \
@WITH_CPU_PROFILER_TRUE@                          src/profile-handler.h \
@WITH_CPU_PROFILER_TRUE@                          src/getpc.h \
@WITH_CPU_PROFILER_TRUE@                          src/base/basictypes.h \
@WITH_CPU_PROFILER_TRUE@                          src/base/commandlineflags.h \
@WITH_CPU_PROFILER_TRUE@                          src/base/googleinit.h \
@WITH_CPU_PROFILER_TRUE@                          src/base/logging.h \
@WITH_CPU_PROFILER_TRUE@                          src/base/simple_mutex.h \
@WITH_CPU_PROFILER_TRUE@                          src/base/sysinfo.h \
@WITH_CPU_PROFILER_TRUE@                          $(SPINLOCK_INCLUDES) \
@WITH_CPU_PROFILER_TRUE@                          $(LOGGING_INCLUDES)

@WITH_CPU_PROFILER_TRUE@SG_CPU_PROFILER_INCLUDES = src/gperftools/profiler.h
@WITH_CPU_PROFILER_TRUE@CPU_PROFILER_INCLUDES = $(S_CPU_PROFILER_INCLUDES) $(SG_CPU_PROFILER_INCLUDES) \
@WITH_CPU_PROFILER_TRUE@			$(SG_STACKTRACE_INCLUDES)

@WITH_CPU_PROFILER_TRUE@libprofiler_la_SOURCES = src/profiler.cc \
@WITH_CPU_PROFILER_TRUE@                         src/profile-handler.cc \
@WITH_CPU_PROFILER_TRUE@                         src/profiledata.cc \
@WITH_CPU_PROFILER_TRUE@                         $(CPU_PROFILER_INCLUDES)

@WITH_CPU_PROFILER_TRUE@libprofiler_la_LIBADD = libstacktrace.la libmaybe_threads.la
# We have to include ProfileData for profiledata_unittest
@WITH_CPU_PROFILER_TRUE@CPU_PROFILER_SYMBOLS = '(ProfilerStart|ProfilerStartWithOptions|ProfilerStop|ProfilerFlush|ProfilerEnable|ProfilerDisable|ProfilingIsEnabledForAllThreads|ProfilerRegisterThread|ProfilerGetCurrentState|ProfilerState|ProfileData|ProfileHandler)'
@WITH_CPU_PROFILER_TRUE@libprofiler_la_LDFLAGS = -export-symbols-regex $(CPU_PROFILER_SYMBOLS) \
@WITH_CPU_PROFILER_TRUE@                         -version-info @PROFILER_SO_VERSION@


# See discussion above (under LIBTCMALLOC_MINIMAL) for why we do this.
# Basically it's to work around systems where --rpath doesn't work right.
@WITH_CPU_PROFILER_TRUE@LIBPROFILER = libstacktrace.la libprofiler.la
#WINDOWS_PROJECTS += vsprojects/getpc_test/getpc_test.vcproj
@WITH_CPU_PROFILER_TRUE@getpc_test_SOURCES = src/tests/getpc_test.cc src/getpc.h
#WINDOWS_PROJECTS += vsprojects/profiledata_unittest/profiledata_unittest.vcproj
@WITH_CPU_PROFILER_TRUE@profiledata_unittest_SOURCES = src/tests/profiledata_unittest.cc \
@WITH_CPU_PROFILER_TRUE@                               src/profiledata.h \
@WITH_CPU_PROFILER_TRUE@                               src/base/commandlineflags.h \
@WITH_CPU_PROFILER_TRUE@                               src/base/logging.h \
@WITH_CPU_PROFILER_TRUE@                               src/base/basictypes.h

@WITH_CPU_PROFILER_TRUE@profiledata_unittest_LDADD = $(LIBPROFILER)
@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_SOURCES = src/tests/profile-handler_unittest.cc \
@WITH_CPU_PROFILER_TRUE@                                   src/profile-handler.h

@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_CXXFLAGS = $(PTHREAD_CFLAGS)
@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_LDFLAGS = $(PTHREAD_CFLAGS)
@WITH_CPU_PROFILER_TRUE@profile_handler_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS)
@WITH_CPU_PROFILER_TRUE@profiler_unittest_sh_SOURCES = src/tests/profiler_unittest.sh
@WITH_CPU_PROFILER_TRUE@PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \
@WITH_CPU_PROFILER_TRUE@                             src/gperftools/profiler.h

@WITH_CPU_PROFILER_TRUE@PROFILER_UNITTEST_SRCS = src/tests/profiler_unittest.cc \
@WITH_CPU_PROFILER_TRUE@                         src/tests/testutil.h src/tests/testutil.cc \
@WITH_CPU_PROFILER_TRUE@                         $(PROFILER_UNITTEST_INCLUDES)

@WITH_CPU_PROFILER_TRUE@profiler1_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
@WITH_CPU_PROFILER_TRUE@profiler1_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS)
@WITH_CPU_PROFILER_TRUE@profiler1_unittest_LDADD = $(LIBPROFILER)
@WITH_CPU_PROFILER_TRUE@profiler2_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
@WITH_CPU_PROFILER_TRUE@profiler2_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS)
@WITH_CPU_PROFILER_TRUE@profiler2_unittest_LDADD = -lstacktrace -lprofiler
# We depend on -lprofiler but haven't yet said how to build it.  Do so now.
@WITH_CPU_PROFILER_TRUE@profiler2_unittest_DEPENDENCIES = $(LIBPROFILER)
@WITH_CPU_PROFILER_TRUE@profiler3_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
@WITH_CPU_PROFILER_TRUE@profiler3_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
@WITH_CPU_PROFILER_TRUE@profiler3_unittest_LDFLAGS = $(PTHREAD_CFLAGS)
@WITH_CPU_PROFILER_TRUE@profiler3_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS)
@WITH_CPU_PROFILER_TRUE@profiler4_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
@WITH_CPU_PROFILER_TRUE@profiler4_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
@WITH_CPU_PROFILER_TRUE@profiler4_unittest_LDFLAGS = $(PTHREAD_CFLAGS)
@WITH_CPU_PROFILER_TRUE@profiler4_unittest_LDADD = -lstacktrace -lprofiler $(PTHREAD_LIBS)
# We depend on -lprofiler but haven't yet said how to build it.  Do so now.
@WITH_CPU_PROFILER_TRUE@profiler4_unittest_DEPENDENCIES = $(LIBPROFILER)
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_SOURCES = $(libtcmalloc_la_SOURCES) $(libprofiler_la_SOURCES)
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) $(libprofiler_la_CXXFLAGS)
# Since this library is meant to be used as a .a, I don't worry as much
# about .so versioning.  I just give the libtcmalloc version number.
# TODO(csilvers): use -export-symbols-regex?
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_LDFLAGS = $(PTHREAD_CFLAGS) \
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                      -version-info @TCMALLOC_SO_VERSION@

# We don't include libprofiler_la_LIBADD here because all it adds is
# libstacktrace.la, which we already get via libtcmalloc.  Trying to
# specify it twice causes link-time duplicate-definition errors. :-(
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@libtcmalloc_and_profiler_la_LIBADD = $(libtcmalloc_la_LIBADD)
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_SOURCES = $(tcmalloc_both_unittest_srcs)
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags)
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags)
@WITH_CPU_PROFILER_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_and_profiler_unittest_LDADD = libtcmalloc_and_profiler.la

# http://linux.die.net/man/1/pkg-config, http://pkg-config.freedesktop.org/wiki
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libtcmalloc.pc libtcmalloc_minimal.pc \
                 libtcmalloc_debug.pc libtcmalloc_minimal_debug.pc \
                 libprofiler.pc

CLEANFILES = $(pkgconfig_DATA)
EXTRA_DIST = packages/rpm.sh packages/rpm/rpm.spec packages/deb.sh packages/deb \
             $(SCRIPTS) libtool \
             src/windows/get_mangled_names.cc src/windows/override_functions.cc \
             src/windows/config.h src/windows/gperftools/tcmalloc.h \
             doc/pprof.see_also src/windows/TODO \
             $(WINDOWS_PROJECTS) \
             src/solaris/libstdc++.la

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src/libtcmalloc_and_profiler_la-heap-checker.lo: src/heap-checker.cc
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src/libtcmalloc_and_profiler_la-profiler.lo: src/profiler.cc
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src/libtcmalloc_debug_la-heap-checker.lo: src/heap-checker.cc
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src/libtcmalloc_debug_la-heap-checker-bcad.lo: src/heap-checker-bcad.cc
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src/libtcmalloc_internal_la-common.lo: src/common.cc
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src/libtcmalloc_internal_la-internal_logging.lo: src/internal_logging.cc
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src/libtcmalloc_internal_la-system-alloc.lo: src/system-alloc.cc
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src/libtcmalloc_internal_la-memfs_malloc.lo: src/memfs_malloc.cc
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src/libtcmalloc_internal_la-central_freelist.lo: src/central_freelist.cc
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src/libtcmalloc_internal_la-page_heap.lo: src/page_heap.cc
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src/libtcmalloc_internal_la-sampler.lo: src/sampler.cc
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src/libtcmalloc_internal_la-span.lo: src/span.cc
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src/libtcmalloc_internal_la-stack_trace_table.lo: src/stack_trace_table.cc
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src/libtcmalloc_internal_la-static_vars.lo: src/static_vars.cc
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src/libtcmalloc_internal_la-symbolize.lo: src/symbolize.cc
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src/libtcmalloc_internal_la-thread_cache.lo: src/thread_cache.cc
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src/libtcmalloc_internal_la-malloc_hook.lo: src/malloc_hook.cc
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src/base/libtcmalloc_internal_la-low_level_alloc.lo: src/base/low_level_alloc.cc
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src/libtcmalloc_minimal_la-tcmalloc.lo: src/tcmalloc.cc
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src/libtcmalloc_minimal_debug_la-debugallocation.lo: src/debugallocation.cc
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src/libtcmalloc_minimal_internal_la-common.lo: src/common.cc
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src/libtcmalloc_minimal_internal_la-internal_logging.lo: src/internal_logging.cc
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src/libtcmalloc_minimal_internal_la-page_heap.lo: src/page_heap.cc
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	$(am__post_remove_distdir)

dist dist-all:
	$(MAKE) $(AM_MAKEFLAGS) $(DIST_TARGETS) am__post_remove_distdir='@:'
	$(am__post_remove_distdir)

# This target untars the dist file and tries a VPATH configuration.  Then
# it guarantees that the distribution is self-contained by making another
# tarfile.
distcheck: dist
	case '$(DIST_ARCHIVES)' in \
	*.tar.gz*) \
	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
	*.tar.bz2*) \
	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
	*.tar.lz*) \
	  lzip -dc $(distdir).tar.lz | $(am__untar) ;;\
	*.tar.xz*) \
	  xz -dc $(distdir).tar.xz | $(am__untar) ;;\
	*.tar.Z*) \
	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
	*.shar.gz*) \
	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
	*.zip*) \
	  unzip $(distdir).zip ;;\
	esac
	chmod -R a-w $(distdir)
	chmod u+w $(distdir)
	mkdir $(distdir)/_build $(distdir)/_inst
	chmod a-w $(distdir)
	test -d $(distdir)/_build || exit 0; \
	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
	  && am__cwd=`pwd` \
	  && $(am__cd) $(distdir)/_build \
	  && ../configure \
	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
	    $(DISTCHECK_CONFIGURE_FLAGS) \
	    --srcdir=.. --prefix="$$dc_install_base" \
	  && $(MAKE) $(AM_MAKEFLAGS) \
	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
	  && $(MAKE) $(AM_MAKEFLAGS) check \
	  && $(MAKE) $(AM_MAKEFLAGS) install \
	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
	        distuninstallcheck \
	  && chmod -R a-w "$$dc_install_base" \
	  && ({ \
	       (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
	  && rm -rf "$$dc_destdir" \
	  && $(MAKE) $(AM_MAKEFLAGS) dist \
	  && rm -rf $(DIST_ARCHIVES) \
	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
	  && cd "$$am__cwd" \
	  || exit 1
	$(am__post_remove_distdir)
	@(echo "$(distdir) archives ready for distribution: "; \
	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
distuninstallcheck:
	@test -n '$(distuninstallcheck_dir)' || { \
	  echo 'ERROR: trying to run $@ with an empty' \
	       '$$(distuninstallcheck_dir)' >&2; \
	  exit 1; \
	}; \
	$(am__cd) '$(distuninstallcheck_dir)' || { \
	  echo 'ERROR: cannot chdir into $(distuninstallcheck_dir)' >&2; \
	  exit 1; \
	}; \
	test `$(am__distuninstallcheck_listfiles) | wc -l` -eq 0 \
	   || { echo "ERROR: files left after uninstall:" ; \
	        if test -n "$(DESTDIR)"; then \
	          echo "  (check DESTDIR support)"; \
	        fi ; \
	        $(distuninstallcheck_listfiles) ; \
	        exit 1; } >&2
distcleancheck: distclean
	@if test '$(srcdir)' = . ; then \
	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
	  exit 1 ; \
	fi
	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
	  || { echo "ERROR: files left in build directory after distclean:" ; \
	       $(distcleancheck_listfiles) ; \
	       exit 1; } >&2
check-am: all-am
	$(MAKE) $(AM_MAKEFLAGS) $(check_SCRIPTS)
	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
check: check-am
all-am: Makefile $(LTLIBRARIES) $(PROGRAMS) $(SCRIPTS) $(MANS) $(DATA) \
		$(HEADERS) all-local
install-binPROGRAMS: install-libLTLIBRARIES

installdirs:
	for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" "$(DESTDIR)$(bindir)" "$(DESTDIR)$(man1dir)" "$(DESTDIR)$(docdir)" "$(DESTDIR)$(pkgconfigdir)" "$(DESTDIR)$(googleincludedir)" "$(DESTDIR)$(perftoolsincludedir)" "$(DESTDIR)$(perftoolsincludedir)"; do \
	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
	done
install: install-am
install-exec: install-exec-am
install-data: install-data-am
uninstall: uninstall-am

install-am: all-am
	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am

installcheck: installcheck-am
install-strip:
	if test -z '$(STRIP)'; then \
	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
	      install; \
	else \
	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
	fi
mostlyclean-generic:
	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)

clean-generic:
	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)

distclean-generic:
	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
	-rm -f src/$(DEPDIR)/$(am__dirstamp)
	-rm -f src/$(am__dirstamp)
	-rm -f src/base/$(DEPDIR)/$(am__dirstamp)
	-rm -f src/base/$(am__dirstamp)
	-rm -f src/tests/$(DEPDIR)/$(am__dirstamp)
	-rm -f src/tests/$(am__dirstamp)
	-rm -f src/windows/$(DEPDIR)/$(am__dirstamp)
	-rm -f src/windows/$(am__dirstamp)

maintainer-clean-generic:
	@echo "This command is intended for maintainers to use"
	@echo "it deletes files that may require special tools to rebuild."
clean: clean-am

clean-am: clean-binPROGRAMS clean-generic clean-libLTLIBRARIES \
	clean-libtool clean-noinstLTLIBRARIES clean-noinstPROGRAMS \
	mostlyclean-am

distclean: distclean-am
	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
	-rm -rf src/$(DEPDIR) src/base/$(DEPDIR) src/tests/$(DEPDIR) src/windows/$(DEPDIR)
	-rm -f Makefile
distclean-am: clean-am distclean-compile distclean-generic \
	distclean-hdr distclean-libtool distclean-tags

dvi: dvi-am

dvi-am:

html: html-am

html-am:

info: info-am

info-am:

install-data-am: install-dist_docDATA install-googleincludeHEADERS \
	install-man install-nodist_perftoolsincludeHEADERS \
	install-perftoolsincludeHEADERS install-pkgconfigDATA

install-dvi: install-dvi-am

install-dvi-am:

install-exec-am: install-binPROGRAMS install-binSCRIPTS \
	install-exec-local install-libLTLIBRARIES

install-html: install-html-am

install-html-am:

install-info: install-info-am

install-info-am:

install-man: install-man1

install-pdf: install-pdf-am

install-pdf-am:

install-ps: install-ps-am

install-ps-am:

installcheck-am:

maintainer-clean: maintainer-clean-am
	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
	-rm -rf $(top_srcdir)/autom4te.cache
	-rm -rf src/$(DEPDIR) src/base/$(DEPDIR) src/tests/$(DEPDIR) src/windows/$(DEPDIR)
	-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic

mostlyclean: mostlyclean-am

mostlyclean-am: mostlyclean-compile mostlyclean-generic \
	mostlyclean-libtool

pdf: pdf-am

pdf-am:

ps: ps-am

ps-am:

uninstall-am: uninstall-binPROGRAMS uninstall-binSCRIPTS \
	uninstall-dist_docDATA uninstall-googleincludeHEADERS \
	uninstall-libLTLIBRARIES uninstall-man \
	uninstall-nodist_perftoolsincludeHEADERS \
	uninstall-perftoolsincludeHEADERS uninstall-pkgconfigDATA

uninstall-man: uninstall-man1

.MAKE: check-am install-am install-strip

.PHONY: CTAGS GTAGS TAGS all all-am all-local am--refresh check \
	check-TESTS check-am clean clean-binPROGRAMS clean-cscope \
	clean-generic clean-libLTLIBRARIES clean-libtool \
	clean-noinstLTLIBRARIES clean-noinstPROGRAMS cscope \
	cscopelist-am ctags ctags-am dist dist-all dist-bzip2 \
	dist-gzip dist-hook dist-lzip dist-shar dist-tarZ dist-xz \
	dist-zip distcheck distclean distclean-compile \
	distclean-generic distclean-hdr distclean-libtool \
	distclean-tags distcleancheck distdir distuninstallcheck dvi \
	dvi-am html html-am info info-am install install-am \
	install-binPROGRAMS install-binSCRIPTS install-data \
	install-data-am install-dist_docDATA install-dvi \
	install-dvi-am install-exec install-exec-am install-exec-local \
	install-googleincludeHEADERS install-html install-html-am \
	install-info install-info-am install-libLTLIBRARIES \
	install-man install-man1 \
	install-nodist_perftoolsincludeHEADERS install-pdf \
	install-pdf-am install-perftoolsincludeHEADERS \
	install-pkgconfigDATA install-ps install-ps-am install-strip \
	installcheck installcheck-am installdirs maintainer-clean \
	maintainer-clean-generic mostlyclean mostlyclean-compile \
	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
	recheck tags tags-am uninstall uninstall-am \
	uninstall-binPROGRAMS uninstall-binSCRIPTS \
	uninstall-dist_docDATA uninstall-googleincludeHEADERS \
	uninstall-libLTLIBRARIES uninstall-man uninstall-man1 \
	uninstall-nodist_perftoolsincludeHEADERS \
	uninstall-perftoolsincludeHEADERS uninstall-pkgconfigDATA

@ENABLE_FRAME_POINTERS_FALSE@@X86_64_AND_NO_FP_BY_DEFAULT_TRUE@  # TODO(csilvers): check if -fomit-frame-pointer might be in $(CXXFLAGS),
@ENABLE_FRAME_POINTERS_FALSE@@X86_64_AND_NO_FP_BY_DEFAULT_TRUE@  #                 before setting this.
@WITH_STACK_TRACE_TRUE@pprof_unittest: $(top_srcdir)/src/pprof
@WITH_STACK_TRACE_TRUE@	$(top_srcdir)/src/pprof -test
# This script preloads libtcmalloc, and calls two other binaries as well
# TODO(csilvers): replace by 'if ! cmp $^ $@ >/dev/null 2>&; then ...; fi'
@ENABLE_STATIC_FALSE@@MINGW_FALSE@maybe_threads_unittest.sh$(EXEEXT): $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) \
@ENABLE_STATIC_FALSE@@MINGW_FALSE@                           $(LIBTCMALLOC_MINIMAL) \
@ENABLE_STATIC_FALSE@@MINGW_FALSE@                           low_level_alloc_unittest
@ENABLE_STATIC_FALSE@@MINGW_FALSE@	rm -f $@
@ENABLE_STATIC_FALSE@@MINGW_FALSE@	cp -p $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) $@
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@debugallocation_test.sh$(EXEEXT): $(top_srcdir)/$(debugallocation_test_sh_SOURCES) \
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@                                  debugallocation_test
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@	rm -f $@
@WITH_DEBUGALLOC_TRUE@@WITH_STACK_TRACE_TRUE@	cp -p $(top_srcdir)/$(debugallocation_test_sh_SOURCES) $@
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@tcmalloc_unittest.sh$(EXEEXT): $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                               tcmalloc_unittest
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	rm -f $@
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	cp -p $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) $@
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                           sampling_test
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	rm -f $@
@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@
@WITH_HEAP_PROFILER_TRUE@heap-profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \
@WITH_HEAP_PROFILER_TRUE@                                    heap-profiler_unittest
@WITH_HEAP_PROFILER_TRUE@	rm -f $@
@WITH_HEAP_PROFILER_TRUE@	cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@
@WITH_HEAP_CHECKER_TRUE@heap-checker_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \
@WITH_HEAP_CHECKER_TRUE@                                   heap-checker_unittest
@WITH_HEAP_CHECKER_TRUE@	rm -f $@
@WITH_HEAP_CHECKER_TRUE@	cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@
@WITH_HEAP_CHECKER_TRUE@heap-checker-death_unittest.sh$(EXEEXT): $(heap_checker_death_unittest_sh_SOURCES) \
@WITH_HEAP_CHECKER_TRUE@                                         heap-checker_unittest
@WITH_HEAP_CHECKER_TRUE@	rm -f $@
@WITH_HEAP_CHECKER_TRUE@	cp -p $(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES) $@
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@sampling_debug_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@                                 sampling_debug_test
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	rm -f $@
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_OR_CHECKER_TRUE@	cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@heap-profiler_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@                                    heap-profiler_debug_unittest
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@	rm -f $@
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_PROFILER_TRUE@	cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@heap-checker_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@                                   heap-checker_debug_unittest
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@	rm -f $@
@WITH_DEBUGALLOC_TRUE@@WITH_HEAP_CHECKER_TRUE@	cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@
@WITH_CPU_PROFILER_TRUE@profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(profiler_unittest_sh_SOURCES) \
@WITH_CPU_PROFILER_TRUE@                               profiler1_unittest profiler2_unittest \
@WITH_CPU_PROFILER_TRUE@                               profiler3_unittest profiler4_unittest
@WITH_CPU_PROFILER_TRUE@	rm -f $@
@WITH_CPU_PROFILER_TRUE@	cp -p $(top_srcdir)/$(profiler_unittest_sh_SOURCES) $@

# Do the weakening on some exported libtcmalloc symbols.
install-exec-local: all-local
all-local: $(LIBS_TO_WEAKEN)
	for la in $(LIBS_TO_WEAKEN); do lib=".libs/`basename $$la .la`.a"; [ ! -f "$$lib" ] || $(WEAKEN) "$$lib"; done

rpm: dist-gzip packages/rpm.sh packages/rpm/rpm.spec
	@cd packages && ./rpm.sh ${PACKAGE} ${VERSION}

deb: dist-gzip packages/deb.sh packages/deb/*
	@cd packages && ./deb.sh ${PACKAGE} ${VERSION}

# I get the description and URL lines from the rpm spec. I use sed to
# try to rewrite exec_prefix, libdir, and includedir in terms of
# prefix, if possible.
libtcmalloc.pc: Makefile packages/rpm/rpm.spec
	echo 'prefix=$(prefix)' > "$@".tmp
	echo 'exec_prefix='`echo '$(exec_prefix)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp
	echo 'libdir='`echo '$(libdir)' | sed 's@^$(exec_prefix)@$${exec_prefix}@'` >> "$@".tmp
	echo 'includedir='`echo '$(includedir)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp
	echo '' >> "$@".tmp
	echo 'Name: $(PACKAGE)' >> "$@".tmp
	echo 'Version: $(VERSION)' >> "$@".tmp
	-grep '^Summary:' $(top_srcdir)/packages/rpm/rpm.spec | sed s/^Summary:/Description:/ | head -n1 >> "$@".tmp
	-grep '^URL: ' $(top_srcdir)/packages/rpm/rpm.spec >> "$@".tmp
	echo 'Requires:' >> "$@".tmp
	echo 'Libs: -L$${libdir} -ltcmalloc' >> "$@".tmp
	echo 'Libs.private: $(PTHREAD_CFLAGS) $(PTHREAD_LIBS)' >> "$@".tmp
	echo 'Cflags: -I$${includedir}' >> "$@".tmp
	mv -f "$@".tmp "$@"

# The other versions are mostly the same.
libtcmalloc_minimal.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal/ > "$@"

libtcmalloc_debug.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_debug/ > "$@"

libtcmalloc_minimal_debug.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal_debug/ > "$@"

libprofiler.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-lprofiler/ > "$@"

libtool: $(LIBTOOL_DEPS)
	$(SHELL) ./config.status --recheck

# Windows wants write permission to .vcproj files and maybe even sln files.
dist-hook:
	test -e "$(distdir)/vsprojects" \
	   && chmod -R u+w $(distdir)/*.sln $(distdir)/vsprojects/

# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:
gperftools-2.4/Makefile.am0000755000000000000000000020253212450132572012476 00000000000000## Process this file with automake to produce Makefile.in

# Note: for every library we create, we're explicit about what symbols
# we export.  In order to avoid complications with C++ mangling, we always
# use the regexp for of specifying symbols.

# Make sure that when we re-make ./configure, we get the macros we need
ACLOCAL_AMFLAGS = -I m4
AUTOMAKE_OPTIONS = subdir-objects

# This is so we can #include 
AM_CPPFLAGS = -I$(top_srcdir)/src

if !WITH_STACK_TRACE
AM_CPPFLAGS += -DNO_TCMALLOC_SAMPLES
endif !WITH_STACK_TRACE

# This is mostly based on configure options
AM_CXXFLAGS =

NO_BUILTIN_CXXFLAGS =

# These are good warnings to turn on by default.  We also tell gcc
# that malloc, free, realloc, mmap, etc. are not builtins (these flags
# are supported since gcc 3.1.1).  gcc doesn't think most of them are
# builtins now in any case, but it's best to be explicit in case that
# changes one day.  gcc ignores functions it doesn't understand.
if GCC
AM_CXXFLAGS += -Wall -Wwrite-strings -Woverloaded-virtual \
               -Wno-sign-compare \
               -fno-builtin-malloc -fno-builtin-free -fno-builtin-realloc \
               -fno-builtin-calloc -fno-builtin-cfree \
               -fno-builtin-memalign -fno-builtin-posix_memalign \
               -fno-builtin-valloc -fno-builtin-pvalloc

NO_BUILTIN_CXXFLAGS += -fno-builtin

# On i386, -mmmx is needed for the mmx-based instructions in
# atomicops-internal-x86.h. Also as of gcc 4.6, -fomit-frame-pointer
# is the default. Since we must always have frame pointers for I386
# in order to generate backtraces we now specify -fno-omit-frame-pointer
# by default.
if I386
AM_CXXFLAGS += -mmmx
AM_CXXFLAGS += -fno-omit-frame-pointer
endif I386
endif GCC
if HAVE_W_NO_UNUSED_RESULT
AM_CXXFLAGS += -Wno-unused-result
endif HAVE_W_NO_UNUSED_RESULT

# The -no-undefined flag allows libtool to generate shared libraries for
# Cygwin and MinGW.  LIBSTDCXX_LA_LINKER_FLAG is used to fix a Solaris bug.
AM_LDFLAGS = -no-undefined $(LIBSTDCXX_LA_LINKER_FLAG)

# We know our low-level code cannot trigger an exception.  On some
# systems, such as cygwin, it would be disastrous if they did, because
# the exception handler might call malloc!  If our low-level routines
# raised an exception within the malloc, they'd deadlock.  Luckily,
# we control all this code, and do not need exceptions for it.
if GCC
NO_EXCEPTIONS = -fno-exceptions
else !GCC
NO_EXCEPTIONS =
endif !GCC

# These are x86-specific, having to do with frame-pointers.  In
# particular, some x86_64 systems do not insert frame pointers by
# default (all i386 systems that I know of, do.  I don't know about
# non-x86 chips).  We need to tell perftools what to do about that.
if X86_64_AND_NO_FP_BY_DEFAULT
if ENABLE_FRAME_POINTERS
AM_CXXFLAGS += -fno-omit-frame-pointer
else
  # TODO(csilvers): check if -fomit-frame-pointer might be in $(CXXFLAGS),
  #                 before setting this.
AM_CXXFLAGS += -DNO_FRAME_POINTER
endif !ENABLE_FRAME_POINTERS
endif X86_64_AND_NO_FP_BY_DEFAULT

# For windows systems (at least, mingw), we need to tell all our
# tests to link in libtcmalloc using -u.  This is because libtcmalloc
# accomplishes its tasks via patching, leaving no work for the linker
# to identify, so the linker will ignore libtcmalloc by default unless
# we explicitly create a dependency via -u.
TCMALLOC_FLAGS =
if MINGW
TCMALLOC_FLAGS += -Wl,-u__tcmalloc
endif MINGW

# If we have objcopy, make malloc/free/etc weak symbols.  That way folks
# can override our malloc if they want to (they can still use tc_malloc).
# Note: the weird-looking symbols are the c++ memory functions:
# (in order) new, new(nothrow), new[], new[](nothrow), delete, delete[]
# In theory this will break if mangling changes, but that seems pretty
# unlikely at this point.  Just in case, I throw in versions with an
# extra underscore as well, which may help on OS X.
if HAVE_OBJCOPY_WEAKEN
WEAKEN = $(OBJCOPY) -W malloc -W free -W realloc -W calloc -W cfree \
         -W memalign -W posix_memalign -W valloc -W pvalloc \
         -W malloc_stats -W mallopt -W mallinfo \
         -W _Znwm -W _ZnwmRKSt9nothrow_t -W _Znam -W _ZnamRKSt9nothrow_t \
         -W _ZdlPv -W _ZdaPv \
         -W __Znwm -W __ZnwmRKSt9nothrow_t -W __Znam -W __ZnamRKSt9nothrow_t \
         -W __ZdlPv -W __ZdaPv
else
WEAKEN = :
endif !HAVE_OBJCOPY_WEAKEN

LIBS_TO_WEAKEN =

perftoolsincludedir = $(includedir)/gperftools
# The .h files you want to install (that is, .h files that people
# who install this package can include in their own applications.)
# We'll add to this later, on a library-by-library basis
perftoolsinclude_HEADERS =
# tcmalloc.h is a special case, because it's a .h.in file
nodist_perftoolsinclude_HEADERS = src/gperftools/tcmalloc.h
noinst_HEADERS = src/gperftools/tcmalloc.h.in

# This is provided for backwards compatibility.  It is populated by
# files that just forward to the canonical location in
# perftoolsincludedir.
googleincludedir = $(includedir)/google
googleinclude_HEADERS =				\
   src/google/heap-checker.h			\
   src/google/heap-profiler.h			\
   src/google/malloc_extension.h		\
   src/google/malloc_extension_c.h		\
   src/google/malloc_hook.h			\
   src/google/malloc_hook_c.h			\
   src/google/profiler.h			\
   src/google/stacktrace.h			\
   src/google/tcmalloc.h

docdir = $(prefix)/share/doc/$(PACKAGE)-$(VERSION)
# This is for HTML and other documentation you want to install.
# Add your documentation files (in doc/) in addition to these
# top-level boilerplate files.  Also add a TODO file if you have one.
# We'll add to this later, on a library-by-library basis
dist_doc_DATA = AUTHORS COPYING ChangeLog INSTALL NEWS README README_windows.txt \
                TODO

# The libraries (.so's) you want to install
# We'll add to this later, on a library-by-library basis
lib_LTLIBRARIES =
# This is for 'convenience libraries' -- basically just a container for sources
noinst_LTLIBRARIES =
## The location of the windows project file for each binary we make
WINDOWS_PROJECTS = gperftools.sln

# unittests you want to run when people type 'make check'.
# Note: tests cannot take any arguments!
# In theory, unittests that are scripts should be added to check_SCRIPTS
# instead.  But check_SCRIPTS is definitely a second-class testing mechanims:
# it don't get TESTS_ENVIRONMENT, and it doesn't get success/failure counting
# (in fact, a script failure aborts all the rest of the tests, even with -k).
# So, for scripts, we add the script to tests, and also put in an empty
# rule so automake doesn't try to build the script as a C binary.
TESTS =
# TESTS_ENVIRONMENT sets environment variables for when you run unittest.
# We always get "srcdir" set for free.
# We'll add to this later, on a library-by-library basis.
TESTS_ENVIRONMENT =
# All script tests should be added here
noinst_SCRIPTS =
# If your test calls another program that, like the test itself, shouldn't
# be installed, add it here.  (Stuff in TESTS is automatically added later).
noinst_PROGRAMS =

# Binaries we might build that should be installed
bin_PROGRAMS =

# This is my own var, used for extra libraries I make that I need installed
EXTRA_INSTALL =

## vvvv RULES TO MAKE THE LIBRARIES, BINARIES, AND UNITTESTS

dist_doc_DATA += doc/index.html doc/designstyle.css


### ------- library routines, in src/base

# This is a 'convenience library' -- it's not actually installed or anything
LOGGING_INCLUDES = src/base/logging.h \
                   src/base/commandlineflags.h \
                   src/base/basictypes.h \
                   src/base/dynamic_annotations.h \
                   src/third_party/valgrind.h
noinst_LTLIBRARIES += liblogging.la
liblogging_la_SOURCES = src/base/logging.cc \
                        src/base/dynamic_annotations.c \
                        $(LOGGING_INCLUDES)

SYSINFO_INCLUDES = src/base/sysinfo.h \
                   src/getenv_safe.h \
                   src/base/logging.h \
                   src/base/commandlineflags.h \
                   src/base/cycleclock.h \
                   src/base/arm_instruction_set_select.h \
                   src/base/basictypes.h
noinst_LTLIBRARIES += libsysinfo.la
libsysinfo_la_SOURCES = src/base/sysinfo.cc \
                        $(SYSINFO_INCLUDES)
libsysinfo_la_LIBADD = $(NANOSLEEP_LIBS)

noinst_LTLIBRARIES += libmaybe_threads.la
# .cc is conditionally added below
libmaybe_threads_la_SOURCES = src/maybe_threads.h

# For MinGW, we use also have to use libwindows Luckily, we need the
# windows.a library in exactly the same place we need spinlock.a
# (pretty much everywhere), so we can use the same variable name for
# each.  We can also optimize the MinGW rule a bit by leaving out
# files we know aren't used on windows, such as
# atomicops-internals-x86.cc.  libwindows also obsoletes the need for
# other files like system_alloc.cc.
if MINGW
WINDOWS_INCLUDES = src/windows/port.h \
                   src/windows/mingw.h \
                   src/windows/mini_disassembler.h \
                   src/windows/mini_disassembler_types.h \
                   src/windows/preamble_patcher.h
noinst_LTLIBRARIES += libwindows.la
libwindows_la_SOURCES = $(WINDOWS_INCLUDES) \
                        src/windows/port.cc \
                        src/windows/system-alloc.cc \
                        src/windows/ia32_modrm_map.cc \
                        src/windows/ia32_opcode_map.cc \
                        src/windows/mini_disassembler.cc \
                        src/windows/patch_functions.cc \
                        src/windows/preamble_patcher.cc \
                        src/windows/preamble_patcher_with_stub.cc
# patch_functions.cc uses Psapi.lib.  MSVC has a #pragma for that, but not us.
libwindows_la_LIBADD = -lpsapi

SPINLOCK_INCLUDES = src/base/spinlock.h \
                    src/base/spinlock_internal.h \
                    src/base/spinlock_win32-inl.h \
                    src/base/spinlock_linux-inl.h \
                    src/base/spinlock_posix-inl.h \
                    src/base/synchronization_profiling.h \
                    src/base/atomicops-internals-macosx.h \
                    src/base/atomicops-internals-linuxppc.h \
                    src/base/atomicops-internals-arm-generic.h \
                    src/base/atomicops-internals-arm-v6plus.h \
                    src/base/atomicops-internals-mips.h \
                    src/base/atomicops-internals-windows.h \
                    src/base/atomicops-internals-gcc.h \
                    src/base/atomicops-internals-x86.h
noinst_LTLIBRARIES += libspinlock.la
libspinlock_la_SOURCES = src/base/spinlock.cc \
                         src/base/spinlock_internal.cc \
                         src/base/atomicops-internals-x86.cc \
                         $(SPINLOCK_INCLUDES)

LIBSPINLOCK = libwindows.la libspinlock.la libsysinfo.la liblogging.la

# We also need to tell mingw that sysinfo.cc needs shlwapi.lib.
# (We do this via a #pragma for msvc, but need to do it here for mingw).
libsysinfo_la_LIBADD += -lshlwapi

# There's a windows-specific unittest we can run.  Right now it's
# win64-specific, and relies on masm, so we comment it out.
## TESTS += preamble_patcher_test
## preamble_patcher_test_SOURCES = src/windows/preamble_patcher_test.cc \
##                                 src/windows/shortproc.asm \
##                                 src/windows/auto_testing_hook.h \
##                                 src/windows/preamble_patcher.h \
##                                 src/base/basictypes.h \
##                                 src/base/logging.h
## preamble_patcher_test_LDFLAGS = $(TCMALLOC_FLAGS)
## preamble_patcher_test_LDADD = $(LIBTCMALLOC_MINIMAL)

# patch_functions.cc #includes tcmalloc.cc, so no need to link it in.
TCMALLOC_CC =
# windows has its own system for threads and system memory allocation.
if HAVE_PTHREAD_DESPITE_ASKING_FOR
libmaybe_threads_la_SOURCES += src/maybe_threads.cc
endif
SYSTEM_ALLOC_CC =
else !MINGW
# spinlock is the only code that uses atomicops.
SPINLOCK_INCLUDES = src/base/spinlock.h \
                    src/base/spinlock_internal.h \
                    src/base/atomicops.h \
                    src/base/atomicops-internals-macosx.h \
                    src/base/atomicops-internals-linuxppc.h \
                    src/base/atomicops-internals-windows.h \
                    src/base/atomicops-internals-x86.h

noinst_LTLIBRARIES += libspinlock.la
libspinlock_la_SOURCES = src/base/spinlock.cc \
                         src/base/spinlock_internal.cc \
                         src/base/atomicops-internals-x86.cc \
                         $(SPINLOCK_INCLUDES)
libspinlock_la_LIBADD = $(NANOSLEEP_LIBS)
# spinlock also needs NumCPUs, from libsysinfo, which in turn needs liblogging
LIBSPINLOCK = libspinlock.la libsysinfo.la liblogging.la

TCMALLOC_CC = src/tcmalloc.cc
libmaybe_threads_la_SOURCES += src/maybe_threads.cc
SYSTEM_ALLOC_CC = src/system-alloc.cc
endif !MINGW

# Add this whether or not we're under MinGW, to keep the tarball complete.
WINDOWS_PROJECTS += vsprojects/preamble_patcher_test/preamble_patcher_test.vcproj
# Because we've commented out the test, above, we have to explicitly add
# the test files to the tarball or automake will leave them out.
WINDOWS_PROJECTS += src/windows/preamble_patcher_test.cc \
                    src/windows/shortproc.asm \
                    src/windows/auto_testing_hook.h

### Unittests
TESTS += low_level_alloc_unittest
WINDOWS_PROJECTS += vsprojects/low_level_alloc_unittest/low_level_alloc_unittest.vcproj
LOW_LEVEL_ALLOC_UNITTEST_INCLUDES = src/base/low_level_alloc.h \
                                    src/base/basictypes.h \
                                    src/gperftools/malloc_hook.h \
                                    src/gperftools/malloc_hook_c.h \
                                    src/malloc_hook-inl.h \
                                    src/malloc_hook_mmap_linux.h \
                                    src/malloc_hook_mmap_freebsd.h \
                                    $(SPINLOCK_INCLUDES) \
                                    $(LOGGING_INCLUDES)
low_level_alloc_unittest_SOURCES = src/base/low_level_alloc.cc \
                                   src/malloc_hook.cc \
                                   src/tests/low_level_alloc_unittest.cc \
                                   $(LOW_LEVEL_ALLOC_UNITTEST_INCLUDES)
# By default, MallocHook takes stack traces for use by the heap-checker.
# We don't need that functionality here, so we turn it off to reduce deps.
low_level_alloc_unittest_CXXFLAGS = -DNO_TCMALLOC_SAMPLES
low_level_alloc_unittest_LDADD = $(LIBSPINLOCK) libmaybe_threads.la

TESTS += atomicops_unittest
ATOMICOPS_UNITTEST_INCLUDES = src/base/atomicops.h \
                              src/base/atomicops-internals-macosx.h \
                              src/base/atomicops-internals-windows.h \
                              src/base/atomicops-internals-x86.h \
                              $(LOGGING_INCLUDES)
atomicops_unittest_SOURCES = src/tests/atomicops_unittest.cc \
                             $(ATOMICOPS_UNITTEST_INCLUDES)
atomicops_unittest_LDADD = $(LIBSPINLOCK)


### ------- stack trace

if WITH_STACK_TRACE

### The header files we use.  We divide into categories based on directory
S_STACKTRACE_INCLUDES = src/stacktrace_impl_setup-inl.h \
                        src/stacktrace_generic-inl.h \
			src/stacktrace_libunwind-inl.h \
			src/stacktrace_arm-inl.h \
			src/stacktrace_powerpc-inl.h \
			src/stacktrace_powerpc-darwin-inl.h \
			src/stacktrace_powerpc-linux-inl.h \
			src/stacktrace_x86-inl.h \
			src/stacktrace_win32-inl.h \
			src/stacktrace_instrument-inl.h \
                        src/base/elf_mem_image.h \
                        src/base/vdso_support.h

SG_STACKTRACE_INCLUDES = src/gperftools/stacktrace.h
STACKTRACE_INCLUDES = $(S_STACKTRACE_INCLUDES) $(SG_STACKTRACE_INCLUDES)
perftoolsinclude_HEADERS += $(SG_STACKTRACE_INCLUDES)

### Making the library
noinst_LTLIBRARIES += libstacktrace.la
libstacktrace_la_SOURCES = src/stacktrace.cc \
                           src/base/elf_mem_image.cc \
                           src/base/vdso_support.cc \
                           $(STACKTRACE_INCLUDES)
libstacktrace_la_LIBADD = $(UNWIND_LIBS) $(LIBSPINLOCK)
STACKTRACE_SYMBOLS = '(GetStackTrace|GetStackFrames|GetStackTraceWithContext|GetStackFramesWithContext)'
libstacktrace_la_LDFLAGS = -export-symbols-regex $(STACKTRACE_SYMBOLS) $(AM_LDFLAGS)

### Unittests
TESTS += stacktrace_unittest
STACKTRACE_UNITTEST_INCLUDES = src/config_for_unittests.h \
                               src/base/commandlineflags.h \
                               $(STACKTRACE_INCLUDES) \
                               $(LOGGING_INCLUDES)
stacktrace_unittest_SOURCES = src/tests/stacktrace_unittest.cc \
                              $(STACKTRACE_UNITTEST_INCLUDES)
stacktrace_unittest_LDADD = libstacktrace.la liblogging.la

### Documentation
dist_doc_DATA +=

endif WITH_STACK_TRACE

### ------- pprof

# If we are not compiling with stacktrace support, pprof is worthless
if WITH_STACK_TRACE

bin_SCRIPTS = src/pprof

### Unittests

check_SCRIPTS = pprof_unittest
pprof_unittest: $(top_srcdir)/src/pprof
	$(top_srcdir)/src/pprof -test

# Let unittests find pprof if they need to run it
TESTS_ENVIRONMENT += PPROF_PATH=$(top_srcdir)/src/pprof

### Documentation
dist_man_MANS = doc/pprof.1
dist_doc_DATA += doc/pprof_remote_servers.html

# On MSVC, we need our own versions of addr2line and nm to work with pprof.
WINDOWS_PROJECTS += vsprojects/nm-pdb/nm-pdb.vcproj
WINDOWS_PROJECTS += vsprojects/addr2line-pdb/addr2line-pdb.vcproj
# This is a slight abuse of WINDOWS_PROJECTS, but not much
WINDOWS_PROJECTS += src/windows/nm-pdb.c \
                    src/windows/addr2line-pdb.c

endif WITH_STACK_TRACE

### ------- tcmalloc_minimal (thread-caching malloc)

### The header files we use.  We divide into categories based on directory
S_TCMALLOC_MINIMAL_INCLUDES = src/common.h \
                              src/internal_logging.h \
                              src/system-alloc.h \
                              src/packed-cache-inl.h \
                              $(SPINLOCK_INCLUDES) \
                              src/tcmalloc_guard.h \
                              src/base/commandlineflags.h \
                              src/base/basictypes.h \
                              src/pagemap.h \
                              src/sampler.h \
                              src/central_freelist.h \
                              src/linked_list.h \
                              src/libc_override.h \
                              src/libc_override_gcc_and_weak.h \
                              src/libc_override_glibc.h \
                              src/libc_override_osx.h \
                              src/libc_override_redefine.h \
                              src/page_heap.h \
                              src/page_heap_allocator.h \
                              src/span.h \
                              src/static_vars.h \
                              src/symbolize.h \
                              src/thread_cache.h \
                              src/stack_trace_table.h \
                              src/base/thread_annotations.h \
                              src/malloc_hook-inl.h \
                              src/malloc_hook_mmap_linux.h \
                              src/malloc_hook_mmap_freebsd.h
SG_TCMALLOC_MINIMAL_INCLUDES = src/gperftools/malloc_hook.h \
                               src/gperftools/malloc_hook_c.h \
                               src/gperftools/malloc_extension.h \
                               src/gperftools/malloc_extension_c.h
TCMALLOC_MINIMAL_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) $(SG_STACKTRACE_INCLUDES)
perftoolsinclude_HEADERS += $(SG_TCMALLOC_MINIMAL_INCLUDES)

### Making the library

# As we describe at the top of this file, we want to turn off exceptions
# for all files in this library -- except tcmalloc.cc which needs them
# to fulfill its API.  Automake doesn't allow per-file CXXFLAGS, so we need
# to separate into two libraries.
noinst_LTLIBRARIES += libtcmalloc_minimal_internal.la
libtcmalloc_minimal_internal_la_SOURCES = src/common.cc \
                                          src/internal_logging.cc \
                                          $(SYSTEM_ALLOC_CC) \
                                          src/memfs_malloc.cc \
                                          src/central_freelist.cc \
                                          src/page_heap.cc \
                                          src/sampler.cc \
                                          src/span.cc \
                                          src/stack_trace_table.cc \
                                          src/static_vars.cc \
                                          src/symbolize.cc \
                                          src/thread_cache.cc \
                                          src/malloc_hook.cc \
                                          src/malloc_extension.cc \
                                          $(TCMALLOC_MINIMAL_INCLUDES)
# We #define NO_TCMALLOC_SAMPLES, since sampling is turned off for _minimal.
libtcmalloc_minimal_internal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \
                                           -DNO_HEAP_CHECK \
                                           $(PTHREAD_CFLAGS) -DNDEBUG \
                                           $(AM_CXXFLAGS) $(NO_EXCEPTIONS)
libtcmalloc_minimal_internal_la_LDFLAGS = $(PTHREAD_CFLAGS) $(AM_LDFLAGS)
libtcmalloc_minimal_internal_la_LIBADD = $(PTHREAD_LIBS) $(LIBSPINLOCK) libmaybe_threads.la

lib_LTLIBRARIES += libtcmalloc_minimal.la
WINDOWS_PROJECTS += vsprojects/libtcmalloc_minimal/libtcmalloc_minimal.vcproj
libtcmalloc_minimal_la_SOURCES = $(TCMALLOC_CC) $(TCMALLOC_MINIMAL_INCLUDES)
libtcmalloc_minimal_la_CXXFLAGS = -DNO_TCMALLOC_SAMPLES \
                                  $(PTHREAD_CFLAGS) -DNDEBUG $(AM_CXXFLAGS)
# -version-info gets passed to libtool
libtcmalloc_minimal_la_LDFLAGS = $(PTHREAD_CFLAGS) -version-info @TCMALLOC_SO_VERSION@ $(AM_LDFLAGS)
libtcmalloc_minimal_la_LIBADD = libtcmalloc_minimal_internal.la $(PTHREAD_LIBS)

# For windows, we're playing around with trying to do some stacktrace
# support even with libtcmalloc_minimal.  For everyone else, though,
# we turn off all stack-trace activity for libtcmalloc_minimal.
# TODO(csilvers): when we're done experimenting, do something principled here
if MINGW
LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la libstacktrace.la
else !MINGW
LIBTCMALLOC_MINIMAL = libtcmalloc_minimal.la
endif !MINGW

LIBS_TO_WEAKEN += libtcmalloc_minimal.la

### Unittests

# Commented out for the moment because malloc(very_big_num) is broken in
# standard libc!  At least, in some situations, some of the time.
## TESTS += malloc_unittest
## MALLOC_UNITEST_INCLUDES = src/gperftools/malloc_extension.h \
##                           src/gperftools/malloc_hook.h \
##                           src/gperftools/malloc_hook_c.h \
##                           src/malloc_hook-inl.h \
##                           src/malloc_hook_mmap_linux.h \
##                           src/malloc_hook_mmap_freebsd.h \
##                           src/base/basictypes.h \
##                           src/maybe_threads.h
## malloc_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \
##                           src/malloc_hook.cc \
##                           src/malloc_extension.cc \
##                           $(MAYBE_THREADS_CC) \
##                           $(MALLOC_UNITTEST_INCLUDES)
## malloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
## malloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS)
## malloc_unittest_LDADD = $(PTHREAD_LIBS)

TESTS += tcmalloc_minimal_unittest
WINDOWS_PROJECTS += vsprojects/tcmalloc_minimal_unittest/tcmalloc_minimal_unittest.vcproj
WINDOWS_PROJECTS += vsprojects/tmu-static/tmu-static.vcproj
tcmalloc_minimal_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \
                                    src/tests/testutil.h src/tests/testutil.cc \
                                    $(TCMALLOC_UNITTEST_INCLUDES)
tcmalloc_minimal_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_minimal_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
tcmalloc_minimal_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) \
                                  liblogging.la $(PTHREAD_LIBS)

TESTS += tcmalloc_minimal_large_unittest
WINDOWS_PROJECTS += vsprojects/tcmalloc_minimal_large/tcmalloc_minimal_large_unittest.vcproj
tcmalloc_minimal_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc
tcmalloc_minimal_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_minimal_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
tcmalloc_minimal_large_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += tcmalloc_minimal_large_heap_fragmentation_unittest
tcmalloc_minimal_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc
tcmalloc_minimal_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_minimal_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
tcmalloc_minimal_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

# This tests it works to LD_PRELOAD libtcmalloc (tests maybe_threads.cc)
# In theory this should work under mingw, but mingw has trouble running
# shell scripts that end in .exe.  And it doesn't seem to build shared
# libraries anyway (so can't be LD_PRELOADed) -- in fact, anybody who
# chooses not to build shared libraries won't be able to run this test.
# TODO(csilvers): figure out how to nix ".exe" or otherwise work under mingw
if !MINGW
if !ENABLE_STATIC
TESTS += maybe_threads_unittest.sh$(EXEEXT)
maybe_threads_unittest_sh_SOURCES = src/tests/maybe_threads_unittest.sh
noinst_SCRIPTS += $(maybe_threads_unittest_sh_SOURCES)
# This script preloads libtcmalloc, and calls two other binaries as well
# TODO(csilvers): replace by 'if ! cmp $^ $@ >/dev/null 2>&; then ...; fi'
maybe_threads_unittest.sh$(EXEEXT): $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) \
                           $(LIBTCMALLOC_MINIMAL) \
                           low_level_alloc_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(maybe_threads_unittest_sh_SOURCES) $@
endif !ENABLE_STATIC
endif !MINGW

# These all tests components of tcmalloc_minimal

TESTS += addressmap_unittest
WINDOWS_PROJECTS += vsprojects/addressmap_unittest/addressmap_unittest.vcproj
ADDRESSMAP_UNITTEST_INCLUDES = src/addressmap-inl.h \
                               src/base/commandlineflags.h \
                               $(LOGGING_INCLUDES)
addressmap_unittest_SOURCES = src/tests/addressmap_unittest.cc \
                              $(ADDRESSMAP_UNITTEST_INCLUDES)
if MINGW
addressmap_unittest_SOURCES += src/windows/port.h src/windows/port.cc
endif MINGW
addressmap_unittest_CXXFLAGS = -g $(AM_CXXFLAGS)
addressmap_unittest_LDADD = liblogging.la

WINDOWS_PROJECTS += vsprojects/system-alloc_unittest/system-alloc_unittest.vcproj
if !MINGW
TESTS += system_alloc_unittest
system_alloc_unittest_SOURCES = src/config_for_unittests.h \
                                src/tests/system-alloc_unittest.cc
system_alloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
system_alloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
system_alloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
endif !MINGW

TESTS += packed_cache_test
WINDOWS_PROJECTS += vsprojects/packed-cache_test/packed-cache_test.vcproj
packed_cache_test_SOURCES = src/tests/packed-cache_test.cc
packed_cache_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
packed_cache_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
packed_cache_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += frag_unittest
WINDOWS_PROJECTS += vsprojects/frag_unittest/frag_unittest.vcproj
frag_unittest_SOURCES = src/tests/frag_unittest.cc src/config_for_unittests.h
frag_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
frag_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
frag_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += markidle_unittest
WINDOWS_PROJECTS += vsprojects/markidle_unittest/markidle_unittest.vcproj
markidle_unittest_SOURCES = src/tests/markidle_unittest.cc \
                            src/config_for_unittests.h \
                            src/tests/testutil.h src/tests/testutil.cc
markidle_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
markidle_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
markidle_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += current_allocated_bytes_test
WINDOWS_PROJECTS += vsprojects/current_allocated_bytes_test/current_allocated_bytes_test.vcproj
current_allocated_bytes_test_SOURCES = src/tests/current_allocated_bytes_test.cc \
                                       src/config_for_unittests.h
current_allocated_bytes_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
current_allocated_bytes_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
current_allocated_bytes_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += malloc_hook_test
WINDOWS_PROJECTS += vsprojects/malloc_hook_test/malloc_hook_test.vcproj
malloc_hook_test_SOURCES = src/tests/malloc_hook_test.cc \
                           src/config_for_unittests.h \
                           src/base/logging.h \
                           src/gperftools/malloc_hook.h \
                           src/tests/testutil.h src/tests/testutil.cc
malloc_hook_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
malloc_hook_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
malloc_hook_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += malloc_extension_test
WINDOWS_PROJECTS += vsprojects/malloc_extension_test/malloc_extension_test.vcproj
malloc_extension_test_SOURCES = src/tests/malloc_extension_test.cc \
                                src/config_for_unittests.h \
                                src/base/logging.h \
                                src/gperftools/malloc_extension.h \
                                src/gperftools/malloc_extension_c.h
malloc_extension_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
malloc_extension_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
malloc_extension_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

# This doesn't work with mingw, which links foo.a even though it
# doesn't set ENABLE_STATIC.  TODO(csilvers): set enable_static=true
# in configure.ac:36?
if !MINGW
TESTS += malloc_extension_c_test
malloc_extension_c_test_SOURCES = src/tests/malloc_extension_c_test.c \
                                  src/gperftools/malloc_extension.h \
                                  src/gperftools/malloc_extension_c.h
malloc_extension_c_test_CFLAGS = $(PTHREAD_CFLAGS) $(AM_CFLAGS)
# -ansi here is just to help ensure the code is bog-standard C.
if GCC
malloc_extension_c_test_CFLAGS += -ansi
endif GCC
malloc_extension_c_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
malloc_extension_c_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS) -lstdc++ -lm
endif !MINGW

if !MINGW
if !OSX
TESTS += memalign_unittest
memalign_unittest_SOURCES = src/tests/memalign_unittest.cc \
                            src/tcmalloc.h \
                            src/config_for_unittests.h \
                            src/tests/testutil.h src/tests/testutil.cc
memalign_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
memalign_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
memalign_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)
endif !OSX
endif !MINGW

TESTS += page_heap_test
WINDOWS_PROJECTS += vsprojects/page_heap_test/page_heap_test.vcproj
page_heap_test_SOURCES = src/tests/page_heap_test.cc \
                         src/config_for_unittests.h \
                         src/base/logging.h \
                         src/common.h \
                         src/page_heap.h
page_heap_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
page_heap_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
page_heap_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += pagemap_unittest
WINDOWS_PROJECTS += vsprojects/pagemap_unittest/pagemap_unittest.vcproj
pagemap_unittest_SOURCES = src/tests/pagemap_unittest.cc \
                           src/config_for_unittests.h \
                           src/base/logging.h \
                           src/pagemap.h
pagemap_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
pagemap_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
pagemap_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += realloc_unittest
WINDOWS_PROJECTS += vsprojects/realloc_unittest/realloc_unittest.vcproj
realloc_unittest_SOURCES = src/tests/realloc_unittest.cc \
                           src/config_for_unittests.h \
                           src/base/logging.h
realloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
realloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
realloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += stack_trace_table_test
WINDOWS_PROJECTS += vsprojects/stack_trace_table_test/stack_trace_table_test.vcproj
stack_trace_table_test_SOURCES = src/tests/stack_trace_table_test.cc \
                                 src/config_for_unittests.h
stack_trace_table_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
stack_trace_table_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
stack_trace_table_test_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

TESTS += thread_dealloc_unittest
WINDOWS_PROJECTS += vsprojects/thread_dealloc_unittest/thread_dealloc_unittest.vcproj
thread_dealloc_unittest_SOURCES = src/tests/thread_dealloc_unittest.cc \
                                  src/config_for_unittests.h \
                                  src/tests/testutil.h src/tests/testutil.cc
thread_dealloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
thread_dealloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
thread_dealloc_unittest_LDADD = $(LIBTCMALLOC_MINIMAL) $(PTHREAD_LIBS)

### Documentation
dist_doc_DATA += doc/tcmalloc.html \
                 doc/overview.gif \
                 doc/pageheap.gif \
                 doc/spanmap.gif \
                 doc/threadheap.gif \
                 doc/t-test1.times.txt \
                 doc/tcmalloc-opspercpusec.vs.threads.1024.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.128.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.131072.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.16384.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.2048.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.256.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.32768.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.4096.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.512.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.64.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.65536.bytes.png 	\
                 doc/tcmalloc-opspercpusec.vs.threads.8192.bytes.png 	\
                 doc/tcmalloc-opspersec.vs.size.1.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.12.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.16.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.2.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.20.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.3.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.4.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.5.threads.png 		\
                 doc/tcmalloc-opspersec.vs.size.8.threads.png

# I don't know how to say "distribute the .dot files but don't install them";
# noinst doesn't seem to work with data.  I separate them out anyway, in case
# one day we figure it out.  Regardless, installing the dot files isn't the
# end of the world.
dist_doc_DATA += doc/overview.dot \
                 doc/pageheap.dot \
                 doc/spanmap.dot \
                 doc/threadheap.dot


### ------- tcmalloc_minimal_debug (thread-caching malloc with debugallocation)

# Like tcmalloc.cc, debugallocation.cc needs exceptions to fulfill its
# API.  Luckily, we can reuse everything else from tcmalloc_minimal.

if WITH_DEBUGALLOC

lib_LTLIBRARIES += libtcmalloc_minimal_debug.la
libtcmalloc_minimal_debug_la_SOURCES = src/debugallocation.cc \
                                       $(TCMALLOC_MINIMAL_INCLUDES)
libtcmalloc_minimal_debug_la_CXXFLAGS = $(libtcmalloc_minimal_la_CXXFLAGS) \
                                        -DTCMALLOC_FOR_DEBUGALLOCATION
# version_info gets passed to libtool
libtcmalloc_minimal_debug_la_LDFLAGS = $(libtcmalloc_minimal_la_LDFLAGS) \
                                       -version-info @TCMALLOC_SO_VERSION@
libtcmalloc_minimal_debug_la_LIBADD = $(libtcmalloc_minimal_la_LIBADD)

LIBS_TO_WEAKEN += libtcmalloc_minimal_debug.la

### Unittests

TESTS += tcmalloc_minimal_debug_unittest
tcmalloc_minimal_debug_unittest_SOURCES = $(tcmalloc_minimal_unittest_SOURCES)
tcmalloc_minimal_debug_unittest_CXXFLAGS = $(tcmalloc_minimal_unittest_CXXFLAGS) \
                                           -DDEBUGALLOCATION
tcmalloc_minimal_debug_unittest_LDFLAGS = $(tcmalloc_minimal_unittest_LDFLAGS)
tcmalloc_minimal_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)

TESTS += malloc_extension_debug_test
malloc_extension_debug_test_SOURCES = $(malloc_extension_test_SOURCES)
malloc_extension_debug_test_CXXFLAGS = $(malloc_extension_test_CXXFLAGS)
malloc_extension_debug_test_LDFLAGS = $(malloc_extension_test_LDFLAGS)
malloc_extension_debug_test_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)

if !MINGW
if !OSX
TESTS += memalign_debug_unittest
memalign_debug_unittest_SOURCES = $(memalign_unittest_SOURCES)
memalign_debug_unittest_CXXFLAGS = $(memalign_unittest_CXXFLAGS)
memalign_debug_unittest_LDFLAGS = $(memalign_unittest_LDFLAGS)
memalign_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)
endif !OSX
endif !MINGW

TESTS += realloc_debug_unittest
realloc_debug_unittest_SOURCES = $(realloc_unittest_SOURCES)
realloc_debug_unittest_CXXFLAGS = $(realloc_unittest_CXXFLAGS)
realloc_debug_unittest_LDFLAGS = $(realloc_unittest_LDFLAGS)
realloc_debug_unittest_LDADD = libtcmalloc_minimal_debug.la $(PTHREAD_LIBS)

# debugallocation_test checks that we print a proper stacktrace when
# debug-allocs fail, so we can't run it if we don't have stacktrace info.
if WITH_STACK_TRACE
TESTS += debugallocation_test.sh$(EXEEXT)
debugallocation_test_sh_SOURCES = src/tests/debugallocation_test.sh
noinst_SCRIPTS += $(debugallocation_test_sh_SOURCES)
debugallocation_test.sh$(EXEEXT): $(top_srcdir)/$(debugallocation_test_sh_SOURCES) \
                                  debugallocation_test
	rm -f $@
	cp -p $(top_srcdir)/$(debugallocation_test_sh_SOURCES) $@

# This is the sub-program used by debugallocation_test.sh
noinst_PROGRAMS += debugallocation_test
debugallocation_test_SOURCES = src/tests/debugallocation_test.cc
debugallocation_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
debugallocation_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
debugallocation_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)
endif WITH_STACK_TRACE

endif WITH_DEBUGALLOC


### ------- tcmalloc (thread-caching malloc + heap profiler + heap checker)

if WITH_HEAP_PROFILER_OR_CHECKER

### The header files we use.  We divide into categories based on directory
S_TCMALLOC_INCLUDES = $(S_TCMALLOC_MINIMAL_INCLUDES) \
                      $(LOGGING_INCLUDES) \
                      src/addressmap-inl.h \
                      src/raw_printer.h \
                      src/base/elfcore.h \
                      src/base/googleinit.h \
                      src/base/linux_syscall_support.h \
                      src/base/linuxthreads.h \
                      src/base/stl_allocator.h \
                      src/base/sysinfo.h \
                      src/base/thread_lister.h \
                      src/heap-profile-table.h \
                      src/heap-profile-stats.h
SG_TCMALLOC_INCLUDES = src/gperftools/heap-profiler.h \
                       src/gperftools/heap-checker.h
TCMALLOC_INCLUDES = $(S_TCMALLOC_INCLUDES) $(SG_TCMALLOC_MINIMAL_INCLUDES) \
		    $(SG_TCMALLOC_INCLUDES) $(SG_STACKTRACE_INCLUDES)
perftoolsinclude_HEADERS += $(SG_TCMALLOC_INCLUDES)

### Making the library

# As we describe at the top of this file, we want to turn off exceptions
# for all files in this library -- except tcmalloc.cc which needs them
# to fulfill its API.  Automake doesn't allow per-file CXXFLAGS, so we need
# to separate into two libraries.
noinst_LTLIBRARIES += libtcmalloc_internal.la
libtcmalloc_internal_la_SOURCES = $(libtcmalloc_minimal_internal_la_SOURCES) \
                                  $(TCMALLOC_INCLUDES) \
                                  src/base/low_level_alloc.cc \
                                  src/heap-profile-table.cc \
                                  src/heap-profiler.cc \
                                  src/raw_printer.cc \
                                  src/memory_region_map.cc
libtcmalloc_internal_la_CXXFLAGS = $(PTHREAD_CFLAGS) -DNDEBUG \
                                   $(AM_CXXFLAGS) $(NO_EXCEPTIONS)
libtcmalloc_internal_la_LDFLAGS = $(PTHREAD_CFLAGS)
libtcmalloc_internal_la_LIBADD = libstacktrace.la $(PTHREAD_LIBS)

lib_LTLIBRARIES += libtcmalloc.la
libtcmalloc_la_SOURCES = $(TCMALLOC_CC) $(TCMALLOC_INCLUDES)
libtcmalloc_la_CXXFLAGS = $(PTHREAD_CFLAGS) -DNDEBUG $(AM_CXXFLAGS)
libtcmalloc_la_LDFLAGS = $(PTHREAD_CFLAGS) -version-info @TCMALLOC_SO_VERSION@
libtcmalloc_la_LIBADD = libtcmalloc_internal.la libmaybe_threads.la $(PTHREAD_LIBS)

if WITH_HEAP_CHECKER
# heap-checker-bcad is last, in hopes its global ctor will run first.
# (Note this is added to libtcmalloc.la, not libtcmalloc_internal.la,
# but that's ok; the internal/external distinction is only useful for
# cygwin, and cygwin doesn't use HEAP_CHECKER anyway.)
HEAP_CHECKER_SOURCES = src/base/thread_lister.c \
                       src/base/linuxthreads.cc \
                       src/heap-checker.cc \
                       src/heap-checker-bcad.cc
libtcmalloc_la_SOURCES += $(HEAP_CHECKER_SOURCES)
else !WITH_HEAP_CHECKER
HEAP_CHECKER_SOURCES =
libtcmalloc_internal_la_CXXFLAGS += -DNO_HEAP_CHECK
libtcmalloc_la_CXXFLAGS += -DNO_HEAP_CHECK
endif !WITH_HEAP_CHECKER

LIBTCMALLOC = libtcmalloc.la

LIBS_TO_WEAKEN += libtcmalloc.la

### Unittests

TESTS += tcmalloc_unittest.sh$(EXEEXT)
tcmalloc_unittest_sh_SOURCES = src/tests/tcmalloc_unittest.sh
noinst_SCRIPTS += $(tcmalloc_unittest_sh_SOURCES)
tcmalloc_unittest.sh$(EXEEXT): $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) \
                               tcmalloc_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(tcmalloc_unittest_sh_SOURCES) $@

noinst_PROGRAMS += tcmalloc_unittest
tcmalloc_unittest_INCLUDES = src/config_for_unittests.h \
                             src/gperftools/malloc_extension.h
tcmalloc_unittest_SOURCES = src/tests/tcmalloc_unittest.cc \
                            src/tcmalloc.h \
                            src/tests/testutil.h src/tests/testutil.cc \
                            $(TCMALLOC_UNITTEST_INCLUDES)
tcmalloc_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
tcmalloc_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS)

# This makes sure it's safe to link in both tcmalloc and
# tcmalloc_minimal.  (One would never do this on purpose, but perhaps
# by accident...)  When we can compile libprofiler, we also link it in
# to make sure that works too.  NOTE: On OS X, it's *not* safe to
# link both in (we end up with two copies of every global var, and
# the code tends to pick one arbitrarily), so don't run the test there.
# (We define these outside the 'if' because they're reused below.)
tcmalloc_both_unittest_srcs = src/tests/tcmalloc_unittest.cc \
                              src/tests/testutil.h src/tests/testutil.cc \
                              $(TCMALLOC_UNITTEST_INCLUDES)
tcmalloc_both_unittest_cflags = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_both_unittest_lflags = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
if WITH_CPU_PROFILER
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \
                              libprofiler.la liblogging.la $(PTHREAD_LIBS)
else
tcmalloc_both_unittest_ladd = $(LIBTCMALLOC) $(LIBTCMALLOC_MINIMAL) \
                              liblogging.la $(PTHREAD_LIBS)
endif !WITH_CPU_PROFILER
if !OSX
TESTS += tcmalloc_both_unittest
tcmalloc_both_unittest_SOURCES = $(tcmalloc_both_unittest_srcs)
tcmalloc_both_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags)
tcmalloc_both_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags)
tcmalloc_both_unittest_LDADD = $(tcmalloc_both_unittest_ladd)
endif !OSX

TESTS += tcmalloc_large_unittest
tcmalloc_large_unittest_SOURCES = src/tests/tcmalloc_large_unittest.cc
tcmalloc_large_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_large_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
tcmalloc_large_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)

TESTS += tcmalloc_large_heap_fragmentation_unittest
tcmalloc_large_heap_fragmentation_unittest_SOURCES = src/tests/large_heap_fragmentation_unittest.cc
tcmalloc_large_heap_fragmentation_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
tcmalloc_large_heap_fragmentation_unittest_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
tcmalloc_large_heap_fragmentation_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)

TESTS += raw_printer_test
raw_printer_test_SOURCES = src/tests/raw_printer_test.cc
raw_printer_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
raw_printer_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
raw_printer_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)

# sampler_test and sampling_test both require sampling to be turned
# on, which it's not by default.  Use the "standard" value of 2^19.
TESTS_ENVIRONMENT += TCMALLOC_SAMPLE_PARAMETER=524288

TESTS += sampler_test
WINDOWS_PROJECTS += vsprojects/sampler_test/sampler_test.vcproj
sampler_test_SOURCES = src/tests/sampler_test.cc \
                       src/config_for_unittests.h
sampler_test_CXXFLAGS = $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
sampler_test_LDFLAGS = $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
sampler_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS) -lm


# These unittests often need to run binaries.  They're in the current dir
TESTS_ENVIRONMENT += BINDIR=.
TESTS_ENVIRONMENT += TMPDIR=/tmp/perftools

TESTS += sampling_test.sh$(EXEEXT)
sampling_test_sh_SOURCES = src/tests/sampling_test.sh
noinst_SCRIPTS += $(sampling_test_sh_SOURCES)
sampling_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \
                           sampling_test
	rm -f $@
	cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@

# This is the sub-program used by sampling_test.sh
# The -g is so pprof can get symbol information.
noinst_PROGRAMS += sampling_test
SAMPLING_TEST_INCLUDES = src/config_for_unittests.h \
                         src/base/logging.h \
                         src/gperftools/malloc_extension.h
sampling_test_SOURCES = src/tests/sampling_test.cc \
                        $(SAMPLING_TEST_INCLUDES)
sampling_test_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
sampling_test_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
sampling_test_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)

endif WITH_HEAP_PROFILER_OR_CHECKER

if WITH_HEAP_PROFILER

TESTS += heap-profiler_unittest.sh$(EXEEXT)
heap_profiler_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh
noinst_SCRIPTS += $(heap_profiler_unittest_sh_SOURCES)
heap-profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \
                                    heap-profiler_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@

# These are sub-programs used by heap-profiler_unittest.sh
noinst_PROGRAMS += heap-profiler_unittest
HEAP_PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \
                                  src/gperftools/heap-profiler.h
heap_profiler_unittest_SOURCES = src/tests/heap-profiler_unittest.cc \
                                 $(HEAP_PROFILER_UNITTEST_INCLUDES)
heap_profiler_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
heap_profiler_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
heap_profiler_unittest_LDADD = $(LIBTCMALLOC) $(PTHREAD_LIBS)

# Tests the compatibility include-headers in google/.  Requires a function
# defined in the heap-profiler, which is why the test lives here.
TESTS += simple_compat_test
simple_compat_test_SOURCES = src/tests/simple_compat_test.cc \
                             $(googleinclude_HEADERS)
simple_compat_test_LDFLAGS = $(TCMALLOC_FLAGS)
simple_compat_test_LDADD = $(LIBTCMALLOC)

endif WITH_HEAP_PROFILER

if WITH_HEAP_CHECKER

TESTS += heap-checker_unittest.sh$(EXEEXT)
heap_checker_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh
noinst_SCRIPTS += $(heap_checker_unittest_sh_SOURCES)
heap-checker_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \
                                   heap-checker_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@

TESTS += heap-checker-death_unittest.sh$(EXEEXT)
heap_checker_death_unittest_sh_SOURCES = src/tests/heap-checker-death_unittest.sh
noinst_SCRIPTS += $(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES)
heap-checker-death_unittest.sh$(EXEEXT): $(heap_checker_death_unittest_sh_SOURCES) \
                                         heap-checker_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(heap_checker_death_unittest_sh_SOURCES) $@

# These are sub-programs used by heap-checker_unittest.sh
noinst_PROGRAMS += heap-checker_unittest
HEAP_CHECKER_UNITTEST_INCLUDES = src/config_for_unittests.h \
                                 src/memory_region_map.h \
                                 src/base/commandlineflags.h \
                                 src/base/googleinit.h \
                                 src/gperftools/heap-checker.h \
                                 $(LOGGING_INCLUDES)
heap_checker_unittest_SOURCES = src/tests/heap-checker_unittest.cc \
                                $(HEAP_CHECKER_UNITTEST_INCLUDES)
heap_checker_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS) $(NO_BUILTIN_CXXFLAGS)
heap_checker_unittest_LDFLAGS = -g $(PTHREAD_CFLAGS) $(TCMALLOC_FLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
# We also put pthreads after tcmalloc, because some pthread
# implementations define their own malloc, and we need to go on the
# first linkline to make sure our malloc 'wins'.
heap_checker_unittest_LDADD = $(LIBTCMALLOC) liblogging.la $(PTHREAD_LIBS)

endif WITH_HEAP_CHECKER

### Documentation (above and beyond tcmalloc_minimal documentation)
if WITH_HEAP_PROFILER
dist_doc_DATA += doc/heapprofile.html doc/heap-example1.png
endif WITH_HEAP_PROFILER

if WITH_HEAP_CHECKER
dist_doc_DATA += doc/heap_checker.html
endif WITH_HEAP_CHECKER


### ------- tcmalloc with debugallocation

if WITH_DEBUGALLOC
if WITH_HEAP_PROFILER_OR_CHECKER

lib_LTLIBRARIES += libtcmalloc_debug.la
libtcmalloc_debug_la_SOURCES = src/debugallocation.cc $(HEAP_CHECKER_SOURCES) \
                               $(TCMALLOC_INCLUDES)
libtcmalloc_debug_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) \
                                -DTCMALLOC_FOR_DEBUGALLOCATION
libtcmalloc_debug_la_LDFLAGS = $(libtcmalloc_la_LDFLAGS) \
                               -version-info @TCMALLOC_SO_VERSION@
libtcmalloc_debug_la_LIBADD = $(libtcmalloc_la_LIBADD)

LIBS_TO_WEAKEN += libtcmalloc_debug.la

### Unittests

TESTS += tcmalloc_debug_unittest
tcmalloc_debug_unittest_SOURCES = $(tcmalloc_unittest_SOURCES)
tcmalloc_debug_unittest_CXXFLAGS = $(tcmalloc_unittest_CXXFLAGS) \
                                   -DDEBUGALLOCATION
tcmalloc_debug_unittest_LDFLAGS = $(tcmalloc_unittest_LDFLAGS)
tcmalloc_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)

TESTS += sampler_debug_test
sampler_debug_test_SOURCES = $(sampler_test_SOURCES)
sampler_debug_test_CXXFLAGS = $(samples_test_CXXFLAGS)
sampler_debug_test_LDFLAGS = $(sampler_test_LDFLAGS)
sampler_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS) -lm

TESTS += sampling_debug_test.sh$(EXEEXT)
sampling_debug_test_sh_SOURCES = src/tests/sampling_test.sh
sampling_debug_test.sh$(EXEEXT): $(top_srcdir)/$(sampling_test_sh_SOURCES) \
                                 sampling_debug_test
	rm -f $@
	cp -p $(top_srcdir)/$(sampling_test_sh_SOURCES) $@

# This is the sub-program using by sampling_debug_test.sh
# The -g is so pprof can get symbol information.
noinst_PROGRAMS += sampling_debug_test
sampling_debug_test_SOURCES = $(sampling_test_SOURCES)
sampling_debug_test_CXXFLAGS = $(sampling_test_CXXFLAGS)
sampling_debug_test_LDFLAGS = $(sampling_test_LDFLAGS)
sampling_debug_test_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)

endif WITH_HEAP_PROFILER_OR_CHECKER

if WITH_HEAP_PROFILER

TESTS += heap-profiler_debug_unittest.sh$(EXEEXT)
heap_profiler_debug_unittest_sh_SOURCES = src/tests/heap-profiler_unittest.sh
heap-profiler_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) \
                                    heap-profiler_debug_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(heap_profiler_unittest_sh_SOURCES) $@

# These are sub-programs used by heap-profiler_debug_unittest.sh
noinst_PROGRAMS += heap-profiler_debug_unittest
heap_profiler_debug_unittest_SOURCES = $(heap_profiler_unittest_SOURCES)
heap_profiler_debug_unittest_CXXFLAGS = $(heap_profiler_unittest_CXXFLAGS)
heap_profiler_debug_unittest_LDFLAGS = $(heap_profiler_unittest_LDFLAGS)
heap_profiler_debug_unittest_LDADD = libtcmalloc_debug.la $(PTHREAD_LIBS)

endif WITH_HEAP_PROFILER

if WITH_HEAP_CHECKER

TESTS += heap-checker_debug_unittest.sh$(EXEEXT)
heap_checker_debug_unittest_sh_SOURCES = src/tests/heap-checker_unittest.sh
heap-checker_debug_unittest.sh$(EXEEXT): $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) \
                                   heap-checker_debug_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(heap_checker_unittest_sh_SOURCES) $@

# These are sub-programs used by heap-checker_debug_unittest.sh
noinst_PROGRAMS += heap-checker_debug_unittest
heap_checker_debug_unittest_SOURCES = $(heap_checker_unittest_SOURCES)
heap_checker_debug_unittest_CXXFLAGS = $(heap_checker_unittest_CXXFLAGS)
heap_checker_debug_unittest_LDFLAGS = $(heap_checker_unittest_LDFLAGS)
# We want libtcmalloc last on the link line, but due to a bug in
# libtool involving convenience libs, they need to come last on the
# link line in order to get dependency ordering right.  This is ok:
# convenience libraries are .a's, so tcmalloc is still the last .so.
heap_checker_debug_unittest_LDADD = libtcmalloc_debug.la liblogging.la \
                                    $(PTHREAD_LIBS)

endif WITH_HEAP_CHECKER
endif WITH_DEBUGALLOC


### ------- CPU profiler

if WITH_CPU_PROFILER

### The header files we use.  We divide into categories based on directory
S_CPU_PROFILER_INCLUDES = src/profiledata.h \
                          src/profile-handler.h \
                          src/getpc.h \
                          src/base/basictypes.h \
                          src/base/commandlineflags.h \
                          src/base/googleinit.h \
                          src/base/logging.h \
                          src/base/simple_mutex.h \
                          src/base/sysinfo.h \
                          $(SPINLOCK_INCLUDES) \
                          $(LOGGING_INCLUDES)
SG_CPU_PROFILER_INCLUDES = src/gperftools/profiler.h
CPU_PROFILER_INCLUDES = $(S_CPU_PROFILER_INCLUDES) $(SG_CPU_PROFILER_INCLUDES) \
			$(SG_STACKTRACE_INCLUDES)
perftoolsinclude_HEADERS += $(SG_CPU_PROFILER_INCLUDES)

### Making the library
lib_LTLIBRARIES += libprofiler.la
libprofiler_la_SOURCES = src/profiler.cc \
                         src/profile-handler.cc \
                         src/profiledata.cc \
                         $(CPU_PROFILER_INCLUDES)
libprofiler_la_LIBADD = libstacktrace.la libmaybe_threads.la
# We have to include ProfileData for profiledata_unittest
CPU_PROFILER_SYMBOLS = '(ProfilerStart|ProfilerStartWithOptions|ProfilerStop|ProfilerFlush|ProfilerEnable|ProfilerDisable|ProfilingIsEnabledForAllThreads|ProfilerRegisterThread|ProfilerGetCurrentState|ProfilerState|ProfileData|ProfileHandler)'
libprofiler_la_LDFLAGS = -export-symbols-regex $(CPU_PROFILER_SYMBOLS) \
                         -version-info @PROFILER_SO_VERSION@

# See discussion above (under LIBTCMALLOC_MINIMAL) for why we do this.
# Basically it's to work around systems where --rpath doesn't work right.
LIBPROFILER = libstacktrace.la libprofiler.la

### Unittests
TESTS += getpc_test
#WINDOWS_PROJECTS += vsprojects/getpc_test/getpc_test.vcproj
getpc_test_SOURCES = src/tests/getpc_test.cc src/getpc.h

TESTS += profiledata_unittest
#WINDOWS_PROJECTS += vsprojects/profiledata_unittest/profiledata_unittest.vcproj
profiledata_unittest_SOURCES = src/tests/profiledata_unittest.cc \
                               src/profiledata.h \
                               src/base/commandlineflags.h \
                               src/base/logging.h \
                               src/base/basictypes.h
profiledata_unittest_LDADD = $(LIBPROFILER)

TESTS += profile_handler_unittest
profile_handler_unittest_SOURCES = src/tests/profile-handler_unittest.cc \
                                   src/profile-handler.h
profile_handler_unittest_CXXFLAGS = $(PTHREAD_CFLAGS)
profile_handler_unittest_LDFLAGS = $(PTHREAD_CFLAGS)
profile_handler_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS)

TESTS += profiler_unittest.sh$(EXEEXT)
profiler_unittest_sh_SOURCES = src/tests/profiler_unittest.sh
noinst_SCRIPTS += $(profiler_unittest_sh_SOURCES)
profiler_unittest.sh$(EXEEXT): $(top_srcdir)/$(profiler_unittest_sh_SOURCES) \
                               profiler1_unittest profiler2_unittest \
                               profiler3_unittest profiler4_unittest
	rm -f $@
	cp -p $(top_srcdir)/$(profiler_unittest_sh_SOURCES) $@

# These are sub-programs used by profiler_unittest.sh
noinst_PROGRAMS += profiler1_unittest profiler2_unittest profiler3_unittest \
                   profiler4_unittest
PROFILER_UNITTEST_INCLUDES = src/config_for_unittests.h \
                             src/gperftools/profiler.h
PROFILER_UNITTEST_SRCS = src/tests/profiler_unittest.cc \
                         src/tests/testutil.h src/tests/testutil.cc \
                         $(PROFILER_UNITTEST_INCLUDES)
profiler1_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
profiler1_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS)
profiler1_unittest_LDADD = $(LIBPROFILER)
profiler2_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
profiler2_unittest_CXXFLAGS = -g -DNO_THREADS $(AM_CXXFLAGS)
profiler2_unittest_LDADD = -lstacktrace -lprofiler
# We depend on -lprofiler but haven't yet said how to build it.  Do so now.
profiler2_unittest_DEPENDENCIES = $(LIBPROFILER)
profiler3_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
profiler3_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
profiler3_unittest_LDFLAGS = $(PTHREAD_CFLAGS)
profiler3_unittest_LDADD = $(LIBPROFILER) $(PTHREAD_LIBS)
profiler4_unittest_SOURCES = $(PROFILER_UNITTEST_SRCS)
profiler4_unittest_CXXFLAGS = -g $(PTHREAD_CFLAGS) $(AM_CXXFLAGS)
profiler4_unittest_LDFLAGS = $(PTHREAD_CFLAGS)
profiler4_unittest_LDADD = -lstacktrace -lprofiler $(PTHREAD_LIBS)
# We depend on -lprofiler but haven't yet said how to build it.  Do so now.
profiler4_unittest_DEPENDENCIES = $(LIBPROFILER)


### Documentation
dist_doc_DATA += doc/cpuprofile.html \
                 doc/cpuprofile-fileformat.html \
                 doc/pprof-test-big.gif \
                 doc/pprof-test.gif \
                 doc/pprof-vsnprintf-big.gif \
                 doc/pprof-vsnprintf.gif

endif WITH_CPU_PROFILER


### ------- CPU profiler and heap checker, in one!

# Ideally, folks who wanted to use both tcmalloc and libprofiler,
# could just link them both into their application.  But while this
# works fine for .so files, it does not for .a files.  The easiest way
# around this -- and I've tried a bunch of the hard ways -- is to just
# to create another set of libraries that has both functionality in it.

if WITH_HEAP_PROFILER_OR_CHECKER
if WITH_CPU_PROFILER

lib_LTLIBRARIES += libtcmalloc_and_profiler.la
libtcmalloc_and_profiler_la_SOURCES = $(libtcmalloc_la_SOURCES) $(libprofiler_la_SOURCES)
libtcmalloc_and_profiler_la_CXXFLAGS = $(libtcmalloc_la_CXXFLAGS) $(libprofiler_la_CXXFLAGS)
# Since this library is meant to be used as a .a, I don't worry as much
# about .so versioning.  I just give the libtcmalloc version number.
# TODO(csilvers): use -export-symbols-regex?
libtcmalloc_and_profiler_la_LDFLAGS = $(PTHREAD_CFLAGS) \
                                      -version-info @TCMALLOC_SO_VERSION@
# We don't include libprofiler_la_LIBADD here because all it adds is
# libstacktrace.la, which we already get via libtcmalloc.  Trying to
# specify it twice causes link-time duplicate-definition errors. :-(
libtcmalloc_and_profiler_la_LIBADD = $(libtcmalloc_la_LIBADD)

TESTS += tcmalloc_and_profiler_unittest
tcmalloc_and_profiler_unittest_SOURCES = $(tcmalloc_both_unittest_srcs)
tcmalloc_and_profiler_unittest_CXXFLAGS = $(tcmalloc_both_unittest_cflags)
tcmalloc_and_profiler_unittest_LDFLAGS = $(tcmalloc_both_unittest_lflags)
tcmalloc_and_profiler_unittest_LDADD = libtcmalloc_and_profiler.la

LIBS_TO_WEAKEN += libtcmalloc_and_profiler.la

endif WITH_CPU_PROFILER
endif WITH_HEAP_PROFILER_OR_CHECKER

## ^^^^ END OF RULES TO MAKE YOUR LIBRARIES, BINARIES, AND UNITTESTS


# Do the weakening on some exported libtcmalloc symbols.
install-exec-local: all-local
all-local: $(LIBS_TO_WEAKEN)
	for la in $(LIBS_TO_WEAKEN); do lib=".libs/`basename $$la .la`.a"; [ ! -f "$$lib" ] || $(WEAKEN) "$$lib"; done


# This should always include $(TESTS), but may also include other
# binaries that you compile but don't want automatically installed.
# We'll add to this later, on a library-by-library basis
noinst_PROGRAMS += $(TESTS)

rpm: dist-gzip packages/rpm.sh packages/rpm/rpm.spec
	@cd packages && ./rpm.sh ${PACKAGE} ${VERSION}

deb: dist-gzip packages/deb.sh packages/deb/*
	@cd packages && ./deb.sh ${PACKAGE} ${VERSION}

# http://linux.die.net/man/1/pkg-config, http://pkg-config.freedesktop.org/wiki
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libtcmalloc.pc libtcmalloc_minimal.pc \
                 libtcmalloc_debug.pc libtcmalloc_minimal_debug.pc \
                 libprofiler.pc
CLEANFILES = $(pkgconfig_DATA)

# I get the description and URL lines from the rpm spec. I use sed to
# try to rewrite exec_prefix, libdir, and includedir in terms of
# prefix, if possible.
libtcmalloc.pc: Makefile packages/rpm/rpm.spec
	echo 'prefix=$(prefix)' > "$@".tmp
	echo 'exec_prefix='`echo '$(exec_prefix)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp
	echo 'libdir='`echo '$(libdir)' | sed 's@^$(exec_prefix)@$${exec_prefix}@'` >> "$@".tmp
	echo 'includedir='`echo '$(includedir)' | sed 's@^$(prefix)@$${prefix}@'` >> "$@".tmp
	echo '' >> "$@".tmp
	echo 'Name: $(PACKAGE)' >> "$@".tmp
	echo 'Version: $(VERSION)' >> "$@".tmp
	-grep '^Summary:' $(top_srcdir)/packages/rpm/rpm.spec | sed s/^Summary:/Description:/ | head -n1 >> "$@".tmp
	-grep '^URL: ' $(top_srcdir)/packages/rpm/rpm.spec >> "$@".tmp
	echo 'Requires:' >> "$@".tmp
	echo 'Libs: -L$${libdir} -ltcmalloc' >> "$@".tmp
	echo 'Libs.private: $(PTHREAD_CFLAGS) $(PTHREAD_LIBS)' >> "$@".tmp
	echo 'Cflags: -I$${includedir}' >> "$@".tmp
	mv -f "$@".tmp "$@"

# The other versions are mostly the same.
libtcmalloc_minimal.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal/ > "$@"

libtcmalloc_debug.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_debug/ > "$@"

libtcmalloc_minimal_debug.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-ltcmalloc_minimal_debug/ > "$@"

libprofiler.pc: libtcmalloc.pc
	cat libtcmalloc.pc | sed s/-ltcmalloc/-lprofiler/ > "$@"

libtool: $(LIBTOOL_DEPS)
	$(SHELL) ./config.status --recheck

# Windows wants write permission to .vcproj files and maybe even sln files.
dist-hook:
	test -e "$(distdir)/vsprojects" \
	   && chmod -R u+w $(distdir)/*.sln $(distdir)/vsprojects/

EXTRA_DIST = packages/rpm.sh packages/rpm/rpm.spec packages/deb.sh packages/deb \
             $(SCRIPTS) libtool \
             src/windows/get_mangled_names.cc src/windows/override_functions.cc \
             src/windows/config.h src/windows/gperftools/tcmalloc.h \
             doc/pprof.see_also src/windows/TODO \
             $(WINDOWS_PROJECTS) \
             src/solaris/libstdc++.la
gperftools-2.4/configure0000755000000000000000000242567012454304621012362 00000000000000#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69 for gperftools 2.4.
#
# Report bugs to .
#
#
# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
#
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi


as_nl='
'
export as_nl
# Printing a long string crashes Solaris 7 /usr/bin/printf.
as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
# Prefer a ksh shell builtin over an external printf program on Solaris,
# but without wasting forks for bash or zsh.
if test -z "$BASH_VERSION$ZSH_VERSION" \
    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='print -r --'
  as_echo_n='print -rn --'
elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='printf %s\n'
  as_echo_n='printf %s'
else
  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
    as_echo_n='/usr/ucb/echo -n'
  else
    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
    as_echo_n_body='eval
      arg=$1;
      case $arg in #(
      *"$as_nl"*)
	expr "X$arg" : "X\\(.*\\)$as_nl";
	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
      esac;
      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
    '
    export as_echo_n_body
    as_echo_n='sh -c $as_echo_n_body as_echo'
  fi
  export as_echo_body
  as_echo='sh -c $as_echo_body as_echo'
fi

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# IFS
# We need space, tab and new line, in precisely that order.  Quoting is
# there to prevent editors from complaining about space-tab.
# (If _AS_PATH_WALK were called with IFS unset, it would disable word
# splitting by setting IFS to empty value.)
IFS=" ""	$as_nl"

# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi

# Unset variables that we do not need and which cause bugs (e.g. in
# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
# suppresses any "Segmentation fault" message there.  '((' could
# trigger a bug in pdksh 5.2.14.
for as_var in BASH_ENV ENV MAIL MAILPATH
do eval test x\${$as_var+set} = xset \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

# Use a proper internal environment variable to ensure we don't fall
  # into an infinite loop, continuously re-executing ourselves.
  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
    _as_can_reexec=no; export _as_can_reexec;
    # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
as_fn_exit 255
  fi
  # We don't want this to propagate to other subprocesses.
          { _as_can_reexec=; unset _as_can_reexec;}
if test "x$CONFIG_SHELL" = x; then
  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '\${1+\"\$@\"}'='\"\$@\"'
  setopt NO_GLOB_SUBST
else
  case \`(set -o) 2>/dev/null\` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi
"
  as_required="as_fn_return () { (exit \$1); }
as_fn_success () { as_fn_return 0; }
as_fn_failure () { as_fn_return 1; }
as_fn_ret_success () { return 0; }
as_fn_ret_failure () { return 1; }

exitcode=0
as_fn_success || { exitcode=1; echo as_fn_success failed.; }
as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :

else
  exitcode=1; echo positional parameters were not saved.
fi
test x\$exitcode = x0 || exit 1
test -x / || exit 1"
  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1

  test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
    PATH=/empty FPATH=/empty; export PATH FPATH
    test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
      || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1
test \$(( 1 + 1 )) = 2 || exit 1"
  if (eval "$as_required") 2>/dev/null; then :
  as_have_required=yes
else
  as_have_required=no
fi
  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :

else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_found=false
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  as_found=:
  case $as_dir in #(
	 /*)
	   for as_base in sh bash ksh sh5; do
	     # Try only shells that exist, to save several forks.
	     as_shell=$as_dir/$as_base
	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
  CONFIG_SHELL=$as_shell as_have_required=yes
		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
  break 2
fi
fi
	   done;;
       esac
  as_found=false
done
$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
  CONFIG_SHELL=$SHELL as_have_required=yes
fi; }
IFS=$as_save_IFS


      if test "x$CONFIG_SHELL" != x; then :
  export CONFIG_SHELL
             # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
exit 255
fi

    if test x$as_have_required = xno; then :
  $as_echo "$0: This script requires a shell more modern than all"
  $as_echo "$0: the shells that I found on your system."
  if test x${ZSH_VERSION+set} = xset ; then
    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
  else
    $as_echo "$0: Please tell bug-autoconf@gnu.org and
$0: google-perftools@googlegroups.com about your system,
$0: including any error possibly output before this
$0: message. Then install a modern shell, or manually run
$0: the script under such a shell if you do have one."
  fi
  exit 1
fi
fi
fi
SHELL=${CONFIG_SHELL-/bin/sh}
export SHELL
# Unset more variables known to interfere with behavior of common tools.
CLICOLOR_FORCE= GREP_OPTIONS=
unset CLICOLOR_FORCE GREP_OPTIONS

## --------------------- ##
## M4sh Shell Functions. ##
## --------------------- ##
# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset

# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit

# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p

# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith


# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  $as_echo "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error

if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits


  as_lineno_1=$LINENO as_lineno_1a=$LINENO
  as_lineno_2=$LINENO as_lineno_2a=$LINENO
  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
  sed -n '
    p
    /[$]LINENO/=
  ' <$as_myself |
    sed '
      s/[$]LINENO.*/&-/
      t lineno
      b
      :lineno
      N
      :loop
      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
      t loop
      s/-\n.*//
    ' >$as_me.lineno &&
  chmod +x "$as_me.lineno" ||
    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }

  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
  # already done that, so ensure we don't try to do so again and fall
  # in an infinite loop.  This has already happened in practice.
  _as_can_reexec=no; export _as_can_reexec
  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensitive to this).
  . "./$as_me.lineno"
  # Exit status is that of the last command.
  exit
}

ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null

if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"

SHELL=${CONFIG_SHELL-/bin/sh}


test -n "$DJDIR" || exec 7<&0 &1

# Name of the host.
# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`

#
# Initializations.
#
ac_default_prefix=/usr/local
ac_clean_files=
ac_config_libobj_dir=.
LIBOBJS=
cross_compiling=no
subdirs=
MFLAGS=
MAKEFLAGS=

# Identity of this package.
PACKAGE_NAME='gperftools'
PACKAGE_TARNAME='gperftools'
PACKAGE_VERSION='2.4'
PACKAGE_STRING='gperftools 2.4'
PACKAGE_BUGREPORT='google-perftools@googlegroups.com'
PACKAGE_URL=''

ac_unique_file="README"
# Factoring default headers for most tests.
ac_includes_default="\
#include 
#ifdef HAVE_SYS_TYPES_H
# include 
#endif
#ifdef HAVE_SYS_STAT_H
# include 
#endif
#ifdef STDC_HEADERS
# include 
# include 
#else
# ifdef HAVE_STDLIB_H
#  include 
# endif
#endif
#ifdef HAVE_STRING_H
# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
#  include 
# endif
# include 
#endif
#ifdef HAVE_STRINGS_H
# include 
#endif
#ifdef HAVE_INTTYPES_H
# include 
#endif
#ifdef HAVE_STDINT_H
# include 
#endif
#ifdef HAVE_UNISTD_H
# include 
#endif"

ac_header_list=
ac_subst_vars='am__EXEEXT_FALSE
am__EXEEXT_TRUE
LTLIBOBJS
LIBOBJS
WITH_STACK_TRACE_FALSE
WITH_STACK_TRACE_TRUE
WITH_HEAP_PROFILER_OR_CHECKER_FALSE
WITH_HEAP_PROFILER_OR_CHECKER_TRUE
WITH_DEBUGALLOC_FALSE
WITH_DEBUGALLOC_TRUE
WITH_HEAP_CHECKER_FALSE
WITH_HEAP_CHECKER_TRUE
WITH_HEAP_PROFILER_FALSE
WITH_HEAP_PROFILER_TRUE
WITH_CPU_PROFILER_FALSE
WITH_CPU_PROFILER_TRUE
OSX_FALSE
OSX_TRUE
MINGW_FALSE
MINGW_TRUE
HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE
HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE
PTHREAD_CFLAGS
PTHREAD_LIBS
PTHREAD_CC
acx_pthread_config
LIBSTDCXX_LA_LINKER_FLAG
NANOSLEEP_LIBS
HAVE_W_NO_UNUSED_RESULT_FALSE
HAVE_W_NO_UNUSED_RESULT_TRUE
I386_FALSE
I386_TRUE
X86_64_AND_NO_FP_BY_DEFAULT_FALSE
X86_64_AND_NO_FP_BY_DEFAULT_TRUE
ENABLE_FRAME_POINTERS_FALSE
ENABLE_FRAME_POINTERS_TRUE
UNWIND_LIBS
ENABLE_STATIC_FALSE
ENABLE_STATIC_TRUE
ac_cv_have_struct_mallinfo
CXXCPP
OTOOL64
OTOOL
LIPO
NMEDIT
DSYMUTIL
MANIFEST_TOOL
RANLIB
ac_ct_AR
AR
DLLTOOL
OBJDUMP
LN_S
NM
ac_ct_DUMPBIN
DUMPBIN
LD
FGREP
EGREP
GREP
SED
LIBTOOL
HAVE_OBJCOPY_WEAKEN_FALSE
HAVE_OBJCOPY_WEAKEN_TRUE
OBJCOPY
GCC_FALSE
GCC_TRUE
CPP
am__fastdepCXX_FALSE
am__fastdepCXX_TRUE
CXXDEPMODE
ac_ct_CXX
CXXFLAGS
CXX
am__fastdepCC_FALSE
am__fastdepCC_TRUE
CCDEPMODE
am__nodep
AMDEPBACKSLASH
AMDEP_FALSE
AMDEP_TRUE
am__quote
am__include
DEPDIR
OBJEXT
EXEEXT
ac_ct_CC
CPPFLAGS
LDFLAGS
CFLAGS
CC
TC_VERSION_PATCH
TC_VERSION_MINOR
TC_VERSION_MAJOR
MAINT
MAINTAINER_MODE_FALSE
MAINTAINER_MODE_TRUE
AM_BACKSLASH
AM_DEFAULT_VERBOSITY
AM_DEFAULT_V
AM_V
am__untar
am__tar
AMTAR
am__leading_dot
SET_MAKE
AWK
mkdir_p
MKDIR_P
INSTALL_STRIP_PROGRAM
STRIP
install_sh
MAKEINFO
AUTOHEADER
AUTOMAKE
AUTOCONF
ACLOCAL
VERSION
PACKAGE
CYGPATH_W
am__isrc
INSTALL_DATA
INSTALL_SCRIPT
INSTALL_PROGRAM
host_os
host_vendor
host_cpu
host
build_os
build_vendor
build_cpu
build
PROFILER_SO_VERSION
TCMALLOC_SO_VERSION
target_alias
host_alias
build_alias
LIBS
ECHO_T
ECHO_N
ECHO_C
DEFS
mandir
localedir
libdir
psdir
pdfdir
dvidir
htmldir
infodir
docdir
oldincludedir
includedir
localstatedir
sharedstatedir
sysconfdir
datadir
datarootdir
libexecdir
sbindir
bindir
program_transform_name
prefix
exec_prefix
PACKAGE_URL
PACKAGE_BUGREPORT
PACKAGE_STRING
PACKAGE_VERSION
PACKAGE_TARNAME
PACKAGE_NAME
PATH_SEPARATOR
SHELL'
ac_subst_files=''
ac_user_opts='
enable_option_checking
enable_silent_rules
enable_maintainer_mode
enable_dependency_tracking
enable_cpu_profiler
enable_heap_profiler
enable_heap_checker
enable_debugalloc
enable_minimal
enable_stacktrace_via_backtrace
enable_libunwind
with_tcmalloc_pagesize
with_tcmalloc_alignment
enable_shared
enable_static
with_pic
enable_fast_install
with_gnu_ld
with_sysroot
enable_libtool_lock
enable_frame_pointers
'
      ac_precious_vars='build_alias
host_alias
target_alias
CC
CFLAGS
LDFLAGS
LIBS
CPPFLAGS
CXX
CXXFLAGS
CCC
CPP
CXXCPP'


# Initialize some variables set by options.
ac_init_help=
ac_init_version=false
ac_unrecognized_opts=
ac_unrecognized_sep=
# The variables have the same names as the options, with
# dashes changed to underlines.
cache_file=/dev/null
exec_prefix=NONE
no_create=
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
verbose=
x_includes=NONE
x_libraries=NONE

# Installation directory options.
# These are left unexpanded so users can "make install exec_prefix=/foo"
# and all the variables that are supposed to be based on exec_prefix
# by default will actually change.
# Use braces instead of parens because sh, perl, etc. also accept them.
# (The list follows the same order as the GNU Coding Standards.)
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datarootdir='${prefix}/share'
datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
infodir='${datarootdir}/info'
htmldir='${docdir}'
dvidir='${docdir}'
pdfdir='${docdir}'
psdir='${docdir}'
libdir='${exec_prefix}/lib'
localedir='${datarootdir}/locale'
mandir='${datarootdir}/man'

ac_prev=
ac_dashdash=
for ac_option
do
  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval $ac_prev=\$ac_option
    ac_prev=
    continue
  fi

  case $ac_option in
  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
  *=)   ac_optarg= ;;
  *)    ac_optarg=yes ;;
  esac

  # Accept the important Cygnus configure options, so we can diagnose typos.

  case $ac_dashdash$ac_option in
  --)
    ac_dashdash=yes ;;

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir=$ac_optarg ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build_alias ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build_alias=$ac_optarg ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file=$ac_optarg ;;

  --config-cache | -C)
    cache_file=config.cache ;;

  -datadir | --datadir | --datadi | --datad)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=*)
    datadir=$ac_optarg ;;

  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
  | --dataroo | --dataro | --datar)
    ac_prev=datarootdir ;;
  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
    datarootdir=$ac_optarg ;;

  -disable-* | --disable-*)
    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid feature name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"enable_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval enable_$ac_useropt=no ;;

  -docdir | --docdir | --docdi | --doc | --do)
    ac_prev=docdir ;;
  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
    docdir=$ac_optarg ;;

  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
    ac_prev=dvidir ;;
  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
    dvidir=$ac_optarg ;;

  -enable-* | --enable-*)
    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid feature name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"enable_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval enable_$ac_useropt=\$ac_optarg ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix=$ac_optarg ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he | -h)
    ac_init_help=long ;;
  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
    ac_init_help=recursive ;;
  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
    ac_init_help=short ;;

  -host | --host | --hos | --ho)
    ac_prev=host_alias ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host_alias=$ac_optarg ;;

  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
    ac_prev=htmldir ;;
  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
  | --ht=*)
    htmldir=$ac_optarg ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir=$ac_optarg ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir=$ac_optarg ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir=$ac_optarg ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
  | --libexe=* | --libex=* | --libe=*)
    libexecdir=$ac_optarg ;;

  -localedir | --localedir | --localedi | --localed | --locale)
    ac_prev=localedir ;;
  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
    localedir=$ac_optarg ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
  | --localstate | --localstat | --localsta | --localst | --locals)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
    localstatedir=$ac_optarg ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir=$ac_optarg ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c | -n)
    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
    no_recursion=yes ;;

  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
  | --oldin | --oldi | --old | --ol | --o)
    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
    oldincludedir=$ac_optarg ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix=$ac_optarg ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
  | --program-pre | --program-pr | --program-p)
    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix=$ac_optarg ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix=$ac_optarg ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \
  | --program-transfo | --program-transf \
  | --program-trans | --program-tran \
  | --progr-tra | --program-tr | --program-t)
    ac_prev=program_transform_name ;;
  -program-transform-name=* | --program-transform-name=* \
  | --program-transform-nam=* | --program-transform-na=* \
  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name=$ac_optarg ;;

  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
    ac_prev=pdfdir ;;
  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
    pdfdir=$ac_optarg ;;

  -psdir | --psdir | --psdi | --psd | --ps)
    ac_prev=psdir ;;
  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
    psdir=$ac_optarg ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir=$ac_optarg ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
  | --sha=* | --sh=*)
    sharedstatedir=$ac_optarg ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site=$ac_optarg ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir=$ac_optarg ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir=$ac_optarg ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target_alias ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target_alias=$ac_optarg ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers | -V)
    ac_init_version=: ;;

  -with-* | --with-*)
    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid package name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"with_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval with_$ac_useropt=\$ac_optarg ;;

  -without-* | --without-*)
    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
      as_fn_error $? "invalid package name: $ac_useropt"
    ac_useropt_orig=$ac_useropt
    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
"with_$ac_useropt"
"*) ;;
      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
	 ac_unrecognized_sep=', ';;
    esac
    eval with_$ac_useropt=no ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes=$ac_optarg ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries=$ac_optarg ;;

  -*) as_fn_error $? "unrecognized option: \`$ac_option'
Try \`$0 --help' for more information"
    ;;

  *=*)
    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
    # Reject names that are not valid shell variable names.
    case $ac_envvar in #(
      '' | [0-9]* | *[!_$as_cr_alnum]* )
      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
    esac
    eval $ac_envvar=\$ac_optarg
    export $ac_envvar ;;

  *)
    # FIXME: should be removed in autoconf 3.0.
    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
    ;;

  esac
done

if test -n "$ac_prev"; then
  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
  as_fn_error $? "missing argument to $ac_option"
fi

if test -n "$ac_unrecognized_opts"; then
  case $enable_option_checking in
    no) ;;
    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
  esac
fi

# Check all directory arguments for consistency.
for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
		datadir sysconfdir sharedstatedir localstatedir includedir \
		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
		libdir localedir mandir
do
  eval ac_val=\$$ac_var
  # Remove trailing slashes.
  case $ac_val in
    */ )
      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
      eval $ac_var=\$ac_val;;
  esac
  # Be sure to have absolute directory names.
  case $ac_val in
    [\\/$]* | ?:[\\/]* )  continue;;
    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
  esac
  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
done

# There might be people who depend on the old broken behavior: `$host'
# used to hold the argument of --host etc.
# FIXME: To remove some day.
build=$build_alias
host=$host_alias
target=$target_alias

# FIXME: To remove some day.
if test "x$host_alias" != x; then
  if test "x$build_alias" = x; then
    cross_compiling=maybe
  elif test "x$build_alias" != "x$host_alias"; then
    cross_compiling=yes
  fi
fi

ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-

test "$silent" = yes && exec 6>/dev/null


ac_pwd=`pwd` && test -n "$ac_pwd" &&
ac_ls_di=`ls -di .` &&
ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
  as_fn_error $? "working directory cannot be determined"
test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
  as_fn_error $? "pwd does not report name of working directory"


# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then the parent directory.
  ac_confdir=`$as_dirname -- "$as_myself" ||
$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_myself" : 'X\(//\)[^/]' \| \
	 X"$as_myself" : 'X\(//\)$' \| \
	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_myself" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
  srcdir=$ac_confdir
  if test ! -r "$srcdir/$ac_unique_file"; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r "$srcdir/$ac_unique_file"; then
  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
fi
ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
ac_abs_confdir=`(
	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
	pwd)`
# When building in place, set srcdir=.
if test "$ac_abs_confdir" = "$ac_pwd"; then
  srcdir=.
fi
# Remove unnecessary trailing slashes from srcdir.
# Double slashes in file names in object file debugging info
# mess up M-x gdb in Emacs.
case $srcdir in
*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
esac
for ac_var in $ac_precious_vars; do
  eval ac_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_env_${ac_var}_value=\$${ac_var}
  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_cv_env_${ac_var}_value=\$${ac_var}
done

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures gperftools 2.4 to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print \`checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for \`--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or \`..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, \`make install' will install all the files in
\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
an installation prefix other than \`$ac_default_prefix' using \`--prefix',
for instance \`--prefix=\$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/gperftools]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]
_ACEOF

  cat <<\_ACEOF

Program names:
  --program-prefix=PREFIX            prepend PREFIX to installed program names
  --program-suffix=SUFFIX            append SUFFIX to installed program names
  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
_ACEOF
fi

if test -n "$ac_init_help"; then
  case $ac_init_help in
     short | recursive ) echo "Configuration of gperftools 2.4:";;
   esac
  cat <<\_ACEOF

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-silent-rules   less verbose build output (undo: "make V=1")
  --disable-silent-rules  verbose build output (undo: "make V=0")
  --enable-maintainer-mode
                          enable make rules and dependencies not useful (and
                          sometimes confusing) to the casual installer
  --enable-dependency-tracking
                          do not reject slow dependency extractors
  --disable-dependency-tracking
                          speeds up one-time build
  --disable-cpu-profiler  do not build the cpu profiler
  --disable-heap-profiler do not build the heap profiler
  --disable-heap-checker  do not build the heap checker
  --disable-debugalloc    do not build versions of libs with debugalloc
  --enable-minimal        build only tcmalloc-minimal (and maybe
                          tcmalloc-minimal-debug)
  --enable-stacktrace-via-backtrace
                          enable use of backtrace() for stacktrace capturing
                          (may deadlock)
  --enable-libunwind      enable libunwind linking
  --enable-shared[=PKGS]  build shared libraries [default=yes]
  --enable-static[=PKGS]  build static libraries [default=yes]
  --enable-fast-install[=PKGS]
                          optimize for fast installation [default=yes]
  --disable-libtool-lock  avoid locking (might break parallel builds)
  --enable-frame-pointers On x86_64 systems, compile with
                          -fno-omit-frame-pointer (see INSTALL)

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --with-tcmalloc-pagesize
                          Set the tcmalloc internal page size to 8K, 32K or
                          64K
  --with-tcmalloc-alignment
                          Set the tcmalloc allocation alignment to 8 or 16
                          bytes
  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
                          both]
  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
  --with-sysroot=DIR Search for dependent libraries within DIR
                        (or the compiler's sysroot if not specified).

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L if you have libraries in a
              nonstandard directory 
  LIBS        libraries to pass to the linker, e.g. -l
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I if
              you have headers in a nonstandard directory 
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  CPP         C preprocessor
  CXXCPP      C++ preprocessor

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to .
_ACEOF
ac_status=$?
fi

if test "$ac_init_help" = "recursive"; then
  # If there are subdirs, report their specific --help.
  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
    test -d "$ac_dir" ||
      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
      continue
    ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix

    cd "$ac_dir" || { ac_status=$?; continue; }
    # Check for guested configure.
    if test -f "$ac_srcdir/configure.gnu"; then
      echo &&
      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
    elif test -f "$ac_srcdir/configure"; then
      echo &&
      $SHELL "$ac_srcdir/configure" --help=recursive
    else
      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi || ac_status=$?
    cd "$ac_pwd" || { ac_status=$?; break; }
  done
fi

test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
  cat <<\_ACEOF
gperftools configure 2.4
generated by GNU Autoconf 2.69

Copyright (C) 2012 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit
fi

## ------------------------ ##
## Autoconf initialization. ##
## ------------------------ ##

# ac_fn_c_try_compile LINENO
# --------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_c_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest.$ac_objext; then :
  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_compile

# ac_fn_cxx_try_compile LINENO
# ----------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_cxx_werror_flag" ||
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  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_compile

# ac_fn_c_try_cpp LINENO
# ----------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_cpp ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_cpp conftest.$ac_ext"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } > conftest.i && {
	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
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       }; then :
  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

    ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_cpp

# ac_fn_c_try_link LINENO
# -----------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_link ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest$ac_exeext
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_c_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest$ac_exeext && {
	 test "$cross_compiling" = yes ||
	 test -x conftest$ac_exeext
       }; then :
  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
  # interfere with the next link command; also delete a directory that is
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  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_link

# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
# -------------------------------------------------------
# Tests whether HEADER exists and can be compiled using the include files in
# INCLUDES, setting the cache variable VAR accordingly.
ac_fn_c_check_header_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "$3=yes"
else
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_header_compile

# ac_fn_c_try_run LINENO
# ----------------------
# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
# that executables *can* be run.
ac_fn_c_try_run ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
  { { case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; }; then :
  ac_retval=0
else
  $as_echo "$as_me: program exited with status $ac_status" >&5
       $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

       ac_retval=$ac_status
fi
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_run

# ac_fn_c_check_func LINENO FUNC VAR
# ----------------------------------
# Tests whether FUNC exists, setting the cache variable VAR accordingly
ac_fn_c_check_func ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
/* Define $2 to an innocuous variant, in case  declares $2.
   For example, HP-UX 11i  declares gettimeofday.  */
#define $2 innocuous_$2

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $2 (); below.
    Prefer  to  if __STDC__ is defined, since
     exists even on freestanding compilers.  */

#ifdef __STDC__
# include 
#else
# include 
#endif

#undef $2

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char $2 ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined __stub_$2 || defined __stub___$2
choke me
#endif

int
main ()
{
return $2 ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  eval "$3=yes"
else
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_func

# ac_fn_cxx_try_cpp LINENO
# ------------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_cpp ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_cpp conftest.$ac_ext"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } > conftest.i && {
	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
	 test ! -s conftest.err
       }; then :
  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

    ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_cpp

# ac_fn_cxx_try_link LINENO
# -------------------------
# Try to link conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_link ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext conftest$ac_exeext
  if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_cxx_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest$ac_exeext && {
	 test "$cross_compiling" = yes ||
	 test -x conftest$ac_exeext
       }; then :
  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
  # interfere with the next link command; also delete a directory that is
  # left behind by Apple's compiler.  We do this before executing the actions.
  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_link

# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
# -------------------------------------------
# Tests whether TYPE exists after having included INCLUDES, setting cache
# variable VAR accordingly.
ac_fn_c_check_type ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  eval "$3=no"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
if (sizeof ($2))
	 return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
if (sizeof (($2)))
	    return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

else
  eval "$3=yes"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_type

# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
# -------------------------------------------------------
# Tests whether HEADER exists, giving a warning if it cannot be compiled using
# the include files in INCLUDES and setting the cache variable VAR
# accordingly.
ac_fn_c_check_header_mongrel ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if eval \${$3+:} false; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
else
  # Is the header compilable?
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
$as_echo_n "checking $2 usability... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_header_compiler=yes
else
  ac_header_compiler=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
$as_echo "$ac_header_compiler" >&6; }

# Is the header present?
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
$as_echo_n "checking $2 presence... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <$2>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  ac_header_preproc=yes
else
  ac_header_preproc=no
fi
rm -f conftest.err conftest.i conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
$as_echo "$ac_header_preproc" >&6; }

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
  yes:no: )
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
    ;;
  no:yes:* )
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
( $as_echo "## ------------------------------------------------ ##
## Report this to google-perftools@googlegroups.com ##
## ------------------------------------------------ ##"
     ) | sed "s/^/$as_me: WARNING:     /" >&2
    ;;
esac
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  eval "$3=\$ac_header_compiler"
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_header_mongrel

# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
# ---------------------------------------------
# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
# accordingly.
ac_fn_c_check_decl ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  as_decl_name=`echo $2|sed 's/ *(.*//'`
  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
#ifndef $as_decl_name
#ifdef __cplusplus
  (void) $as_decl_use;
#else
  (void) $as_decl_name;
#endif
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "$3=yes"
else
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_decl
cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by gperftools $as_me 2.4, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ $0 $@

_ACEOF
exec 5>>config.log
{
cat <<_ASUNAME
## --------- ##
## Platform. ##
## --------- ##

hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`

/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`

_ASUNAME

as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    $as_echo "PATH: $as_dir"
  done
IFS=$as_save_IFS

} >&5

cat >&5 <<_ACEOF


## ----------- ##
## Core tests. ##
## ----------- ##

_ACEOF


# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
# Strip out --silent because we don't want to record it for future runs.
# Also quote any args containing shell meta-characters.
# Make two passes to allow for proper duplicate-argument suppression.
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
ac_must_keep_next=false
for ac_pass in 1 2
do
  for ac_arg
  do
    case $ac_arg in
    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *\'*)
      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
    2)
      as_fn_append ac_configure_args1 " '$ac_arg'"
      if test $ac_must_keep_next = true; then
	ac_must_keep_next=false # Got value, back to normal.
      else
	case $ac_arg in
	  *=* | --config-cache | -C | -disable-* | --disable-* \
	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
	  | -with-* | --with-* | -without-* | --without-* | --x)
	    case "$ac_configure_args0 " in
	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
	    esac
	    ;;
	  -* ) ac_must_keep_next=true ;;
	esac
      fi
      as_fn_append ac_configure_args " '$ac_arg'"
      ;;
    esac
  done
done
{ ac_configure_args0=; unset ac_configure_args0;}
{ ac_configure_args1=; unset ac_configure_args1;}

# When interrupted or exit'd, cleanup temporary files, and complete
# config.log.  We remove comments because anyway the quotes in there
# would cause problems or look ugly.
# WARNING: Use '\'' to represent an apostrophe within the trap.
# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
trap 'exit_status=$?
  # Save into config.log some information that might help in debugging.
  {
    echo

    $as_echo "## ---------------- ##
## Cache variables. ##
## ---------------- ##"
    echo
    # The following way of writing the cache mishandles newlines in values,
(
  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done
  (set) 2>&1 |
    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      sed -n \
	"s/'\''/'\''\\\\'\'''\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
      ;; #(
    *)
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
)
    echo

    $as_echo "## ----------------- ##
## Output variables. ##
## ----------------- ##"
    echo
    for ac_var in $ac_subst_vars
    do
      eval ac_val=\$$ac_var
      case $ac_val in
      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
      esac
      $as_echo "$ac_var='\''$ac_val'\''"
    done | sort
    echo

    if test -n "$ac_subst_files"; then
      $as_echo "## ------------------- ##
## File substitutions. ##
## ------------------- ##"
      echo
      for ac_var in $ac_subst_files
      do
	eval ac_val=\$$ac_var
	case $ac_val in
	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
	esac
	$as_echo "$ac_var='\''$ac_val'\''"
      done | sort
      echo
    fi

    if test -s confdefs.h; then
      $as_echo "## ----------- ##
## confdefs.h. ##
## ----------- ##"
      echo
      cat confdefs.h
      echo
    fi
    test "$ac_signal" != 0 &&
      $as_echo "$as_me: caught signal $ac_signal"
    $as_echo "$as_me: exit $exit_status"
  } >&5
  rm -f core *.core core.conftest.* &&
    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
    exit $exit_status
' 0
for ac_signal in 1 2 13 15; do
  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
done
ac_signal=0

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -f -r conftest* confdefs.h

$as_echo "/* confdefs.h */" > confdefs.h

# Predefined preprocessor variables.

cat >>confdefs.h <<_ACEOF
#define PACKAGE_NAME "$PACKAGE_NAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_VERSION "$PACKAGE_VERSION"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_STRING "$PACKAGE_STRING"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_URL "$PACKAGE_URL"
_ACEOF


# Let the site file select an alternate cache file if it wants to.
# Prefer an explicitly selected file to automatically selected ones.
ac_site_file1=NONE
ac_site_file2=NONE
if test -n "$CONFIG_SITE"; then
  # We do not want a PATH search for config.site.
  case $CONFIG_SITE in #((
    -*)  ac_site_file1=./$CONFIG_SITE;;
    */*) ac_site_file1=$CONFIG_SITE;;
    *)   ac_site_file1=./$CONFIG_SITE;;
  esac
elif test "x$prefix" != xNONE; then
  ac_site_file1=$prefix/share/config.site
  ac_site_file2=$prefix/etc/config.site
else
  ac_site_file1=$ac_default_prefix/share/config.site
  ac_site_file2=$ac_default_prefix/etc/config.site
fi
for ac_site_file in "$ac_site_file1" "$ac_site_file2"
do
  test "x$ac_site_file" = xNONE && continue
  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
$as_echo "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file" \
      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "failed to load site script $ac_site_file
See \`config.log' for more details" "$LINENO" 5; }
  fi
done

if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special files
  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
$as_echo "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . "$cache_file";;
      *)                      . "./$cache_file";;
    esac
  fi
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
$as_echo "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
fi

as_fn_append ac_header_list " stdlib.h"
as_fn_append ac_header_list " unistd.h"
as_fn_append ac_header_list " sys/param.h"
# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
for ac_var in $ac_precious_vars; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val=\$ac_cv_env_${ac_var}_value
  eval ac_new_val=\$ac_env_${ac_var}_value
  case $ac_old_set,$ac_new_set in
    set,)
      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
	# differences in whitespace do not lead to failure.
	ac_old_val_w=`echo x $ac_old_val`
	ac_new_val_w=`echo x $ac_new_val`
	if test "$ac_old_val_w" != "$ac_new_val_w"; then
	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
	  ac_cache_corrupted=:
	else
	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
	  eval $ac_var=\$ac_old_val
	fi
	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
    esac
  fi
done
if $ac_cache_corrupted; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
fi
## -------------------- ##
## Main body of script. ##
## -------------------- ##

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


# Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
TCMALLOC_SO_VERSION=6:6:2
PROFILER_SO_VERSION=4:5:4




# The argument here is just something that should be in the current directory
# (for sanity checking)


ac_aux_dir=
for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
  if test -f "$ac_dir/install-sh"; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install-sh -c"
    break
  elif test -f "$ac_dir/install.sh"; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install.sh -c"
    break
  elif test -f "$ac_dir/shtool"; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/shtool install -c"
    break
  fi
done
if test -z "$ac_aux_dir"; then
  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
fi

# These three variables are undocumented and unsupported,
# and are intended to be withdrawn in a future Autoconf release.
# They can cause serious problems if a builder's source tree is in a directory
# whose full name contains unusual characters.
ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.


# Make sure we can run config.sub.
$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
$as_echo_n "checking build system type... " >&6; }
if ${ac_cv_build+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_build_alias=$build_alias
test "x$ac_build_alias" = x &&
  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
test "x$ac_build_alias" = x &&
  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
$as_echo "$ac_cv_build" >&6; }
case $ac_cv_build in
*-*-*) ;;
*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
esac
build=$ac_cv_build
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_build
shift
build_cpu=$1
build_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
build_os=$*
IFS=$ac_save_IFS
case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
$as_echo_n "checking host system type... " >&6; }
if ${ac_cv_host+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test "x$host_alias" = x; then
  ac_cv_host=$ac_cv_build
else
  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
$as_echo "$ac_cv_host" >&6; }
case $ac_cv_host in
*-*-*) ;;
*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
esac
host=$ac_cv_host
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_host
shift
host_cpu=$1
host_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
host_os=$*
IFS=$ac_save_IFS
case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac


am__api_version='1.14'

# Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AmigaOS /C/install, which installs bootblocks on floppy discs
# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# OS/2's system install, which has a completely different semantic
# ./install, which can be erroneously created by make from ./install.sh.
# Reject install programs that cannot install multiple files.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
$as_echo_n "checking for a BSD-compatible install... " >&6; }
if test -z "$INSTALL"; then
if ${ac_cv_path_install+:} false; then :
  $as_echo_n "(cached) " >&6
else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    # Account for people who put trailing slashes in PATH elements.
case $as_dir/ in #((
  ./ | .// | /[cC]/* | \
  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
  /usr/ucb/* ) ;;
  *)
    # OSF1 and SCO ODT 3.0 have their own names for install.
    # Don't use installbsd from OSF since it installs stuff as root
    # by default.
    for ac_prog in ginstall scoinst install; do
      for ac_exec_ext in '' $ac_executable_extensions; do
	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
	  if test $ac_prog = install &&
	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    :
	  elif test $ac_prog = install &&
	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # program-specific install script used by HP pwplus--don't use.
	    :
	  else
	    rm -rf conftest.one conftest.two conftest.dir
	    echo one > conftest.one
	    echo two > conftest.two
	    mkdir conftest.dir
	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
	      test -s conftest.one && test -s conftest.two &&
	      test -s conftest.dir/conftest.one &&
	      test -s conftest.dir/conftest.two
	    then
	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
	      break 3
	    fi
	  fi
	fi
      done
    done
    ;;
esac

  done
IFS=$as_save_IFS

rm -rf conftest.one conftest.two conftest.dir

fi
  if test "${ac_cv_path_install+set}" = set; then
    INSTALL=$ac_cv_path_install
  else
    # As a last resort, use the slow shell script.  Don't cache a
    # value for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the value is a relative name.
    INSTALL=$ac_install_sh
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
$as_echo "$INSTALL" >&6; }

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
$as_echo_n "checking whether build environment is sane... " >&6; }
# Reject unsafe characters in $srcdir or the absolute working directory
# name.  Accept space and tab only in the latter.
am_lf='
'
case `pwd` in
  *[\\\"\#\$\&\'\`$am_lf]*)
    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
esac
case $srcdir in
  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
esac

# Do 'set' in a subshell so we don't clobber the current shell's
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
   am_has_slept=no
   for am_try in 1 2; do
     echo "timestamp, slept: $am_has_slept" > conftest.file
     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
     if test "$*" = "X"; then
	# -L didn't work.
	set X `ls -t "$srcdir/configure" conftest.file`
     fi
     if test "$*" != "X $srcdir/configure conftest.file" \
	&& test "$*" != "X conftest.file $srcdir/configure"; then

	# If neither matched, then we have a broken ls.  This can happen
	# if, for instance, CONFIG_SHELL is bash and it inherits a
	# broken ls alias from the environment.  This has actually
	# happened.  Such a system could not be considered "sane".
	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
  alias in your environment" "$LINENO" 5
     fi
     if test "$2" = conftest.file || test $am_try -eq 2; then
       break
     fi
     # Just in case.
     sleep 1
     am_has_slept=yes
   done
   test "$2" = conftest.file
   )
then
   # Ok.
   :
else
   as_fn_error $? "newly created file is older than distributed files!
Check your system clock" "$LINENO" 5
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
# If we didn't sleep, we still need to ensure time stamps of config.status and
# generated files are strictly newer.
am_sleep_pid=
if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  ( sleep 1 ) &
  am_sleep_pid=$!
fi

rm -f conftest.file

test "$program_prefix" != NONE &&
  program_transform_name="s&^&$program_prefix&;$program_transform_name"
# Use a double $ so make ignores it.
test "$program_suffix" != NONE &&
  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
# Double any \ or $.
# By default was `s,x,x', remove it if useless.
ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`

# Expand $ac_aux_dir to an absolute path.
am_aux_dir=`cd "$ac_aux_dir" && pwd`

if test x"${MISSING+set}" != xset; then
  case $am_aux_dir in
  *\ * | *\	*)
    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  *)
    MISSING="\${SHELL} $am_aux_dir/missing" ;;
  esac
fi
# Use eval to expand $SHELL
if eval "$MISSING --is-lightweight"; then
  am_missing_run="$MISSING "
else
  am_missing_run=
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
fi

if test x"${install_sh}" != xset; then
  case $am_aux_dir in
  *\ * | *\	*)
    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  *)
    install_sh="\${SHELL} $am_aux_dir/install-sh"
  esac
fi

# Installed binaries are usually stripped using 'strip' when the user
# run "make install-strip".  However 'strip' might not be the right
# tool to use in cross-compilation environments, therefore Automake
# will honor the 'STRIP' environment variable to overrule this program.
if test "$cross_compiling" != no; then
  if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
set dummy ${ac_tool_prefix}strip; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_STRIP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$STRIP"; then
  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
STRIP=$ac_cv_prog_STRIP
if test -n "$STRIP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
$as_echo "$STRIP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_STRIP"; then
  ac_ct_STRIP=$STRIP
  # Extract the first word of "strip", so it can be a program name with args.
set dummy strip; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_STRIP"; then
  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_STRIP="strip"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
if test -n "$ac_ct_STRIP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
$as_echo "$ac_ct_STRIP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_STRIP" = x; then
    STRIP=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    STRIP=$ac_ct_STRIP
  fi
else
  STRIP="$ac_cv_prog_STRIP"
fi

fi
INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
if test -z "$MKDIR_P"; then
  if ${ac_cv_path_mkdir+:} false; then :
  $as_echo_n "(cached) " >&6
else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in mkdir gmkdir; do
	 for ac_exec_ext in '' $ac_executable_extensions; do
	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
	     'mkdir (GNU coreutils) '* | \
	     'mkdir (coreutils) '* | \
	     'mkdir (fileutils) '4.1*)
	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
	       break 3;;
	   esac
	 done
       done
  done
IFS=$as_save_IFS

fi

  test -d ./--version && rmdir ./--version
  if test "${ac_cv_path_mkdir+set}" = set; then
    MKDIR_P="$ac_cv_path_mkdir -p"
  else
    # As a last resort, use the slow shell script.  Don't cache a
    # value for MKDIR_P within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the value is a relative name.
    MKDIR_P="$ac_install_sh -d"
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
$as_echo "$MKDIR_P" >&6; }

for ac_prog in gawk mawk nawk awk
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_AWK+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$AWK"; then
  ac_cv_prog_AWK="$AWK" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_AWK="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
AWK=$ac_cv_prog_AWK
if test -n "$AWK"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
$as_echo "$AWK" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$AWK" && break
done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
set x ${MAKE-make}
ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat >conftest.make <<\_ACEOF
SHELL = /bin/sh
all:
	@echo '@@@%%%=$(MAKE)=@@@%%%'
_ACEOF
# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
case `${MAKE-make} -f conftest.make 2>/dev/null` in
  *@@@%%%=?*=@@@%%%*)
    eval ac_cv_prog_make_${ac_make}_set=yes;;
  *)
    eval ac_cv_prog_make_${ac_make}_set=no;;
esac
rm -f conftest.make
fi
if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
  SET_MAKE=
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
  SET_MAKE="MAKE=${MAKE-make}"
fi

rm -rf .tst 2>/dev/null
mkdir .tst 2>/dev/null
if test -d .tst; then
  am__leading_dot=.
else
  am__leading_dot=_
fi
rmdir .tst 2>/dev/null

# Check whether --enable-silent-rules was given.
if test "${enable_silent_rules+set}" = set; then :
  enableval=$enable_silent_rules;
fi

case $enable_silent_rules in # (((
  yes) AM_DEFAULT_VERBOSITY=0;;
   no) AM_DEFAULT_VERBOSITY=1;;
    *) AM_DEFAULT_VERBOSITY=1;;
esac
am_make=${MAKE-make}
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
if ${am_cv_make_support_nested_variables+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if $as_echo 'TRUE=$(BAR$(V))
BAR0=false
BAR1=true
V=1
am__doit:
	@$(TRUE)
.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
  am_cv_make_support_nested_variables=yes
else
  am_cv_make_support_nested_variables=no
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
$as_echo "$am_cv_make_support_nested_variables" >&6; }
if test $am_cv_make_support_nested_variables = yes; then
    AM_V='$(V)'
  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
else
  AM_V=$AM_DEFAULT_VERBOSITY
  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
fi
AM_BACKSLASH='\'

if test "`cd $srcdir && pwd`" != "`pwd`"; then
  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  # is not polluted with repeated "-I."
  am__isrc=' -I$(srcdir)'
  # test to see if srcdir already configured
  if test -f $srcdir/config.status; then
    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
  fi
fi

# test whether we have cygpath
if test -z "$CYGPATH_W"; then
  if (cygpath --version) >/dev/null 2>/dev/null; then
    CYGPATH_W='cygpath -w'
  else
    CYGPATH_W=echo
  fi
fi


# Define the identity of the package.
 PACKAGE='gperftools'
 VERSION='2.4'


cat >>confdefs.h <<_ACEOF
#define PACKAGE "$PACKAGE"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define VERSION "$VERSION"
_ACEOF

# Some tools Automake needs.

ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}


AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}


AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}


AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}


MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}

# For better backward compatibility.  To be removed once Automake 1.9.x
# dies out for good.  For more background, see:
# 
# 
mkdir_p='$(MKDIR_P)'

# We need awk for the "check" target.  The system "awk" is bad on
# some platforms.
# Always define AMTAR for backward compatibility.  Yes, it's still used
# in the wild :-(  We should find a proper way to deprecate it ...
AMTAR='$${TAR-tar}'


# We'll loop over all known methods to create a tar archive until one works.
_am_tools='gnutar  pax cpio none'

am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'






# POSIX will say in a future version that running "rm -f" with no argument
# is OK; and we want to be able to make that assumption in our Makefile
# recipes.  So use an aggressive probe to check that the usage we want is
# actually supported "in the wild" to an acceptable degree.
# See automake bug#10828.
# To make any issue more visible, cause the running configure to be aborted
# by default if the 'rm' program in use doesn't match our expectations; the
# user can still override this though.
if rm -f && rm -fr && rm -rf; then : OK; else
  cat >&2 <<'END'
Oops!

Your 'rm' program seems unable to run without file operands specified
on the command line, even when the '-f' option is present.  This is contrary
to the behaviour of most rm programs out there, and not conforming with
the upcoming POSIX standard: 

Please tell bug-automake@gnu.org about your system, including the value
of your $PATH and any error possibly output before this message.  This
can help us improve future automake versions.

END
  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
    echo 'Configuration will proceed anyway, since you have set the' >&2
    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
    echo >&2
  else
    cat >&2 <<'END'
Aborting the configuration process, to ensure you take notice of the issue.

You can download and install GNU coreutils to get an 'rm' implementation
that behaves properly: .

If you want to complete the configuration process using your problematic
'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
to "yes", and re-run configure.

END
    as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
  fi
fi

ac_config_headers="$ac_config_headers src/config.h"



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
$as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
    # Check whether --enable-maintainer-mode was given.
if test "${enable_maintainer_mode+set}" = set; then :
  enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
else
  USE_MAINTAINER_MODE=no
fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5
$as_echo "$USE_MAINTAINER_MODE" >&6; }
   if test $USE_MAINTAINER_MODE = yes; then
  MAINTAINER_MODE_TRUE=
  MAINTAINER_MODE_FALSE='#'
else
  MAINTAINER_MODE_TRUE='#'
  MAINTAINER_MODE_FALSE=
fi

  MAINT=$MAINTAINER_MODE_TRUE


# Export the version information (for tc_version and friends)
TC_VERSION_MAJOR=`expr "$PACKAGE_VERSION" : '\([0-9]*\)'`
TC_VERSION_MINOR=`expr "$PACKAGE_VERSION" : '[0-9]*\.\([0-9]*\)'`
TC_VERSION_PATCH=`expr "$PACKAGE_VERSION" : '[0-9]*\.[0-9]*\(.*\)$'`





# The user can choose not to compile in the heap-profiler, the
# heap-checker, or the cpu-profiler.  There's also the possibility
# for a 'fully minimal' compile, which leaves out the stacktrace
# code as well.  By default, we include all of these that the
# target system supports.
default_enable_cpu_profiler=yes
default_enable_heap_profiler=yes
default_enable_heap_checker=yes
default_enable_debugalloc=yes
default_enable_minimal=no
default_tcmalloc_alignment=16
need_nanosleep=yes   # Used later, to decide if to run ACX_NANOSLEEP
case "$host" in
   *-mingw*) default_enable_minimal=yes; default_enable_debugalloc=no;
             need_nanosleep=no;;
   *-cygwin*) default_enable_heap_checker=no; default_enable_cpu_profiler=no;;
   *-freebsd*) default_enable_heap_checker=no;;
   *-darwin*) default_enable_heap_checker=no;;
esac

# Disable libunwind linking on ppc64 by default.
DEPDIR="${am__leading_dot}deps"

ac_config_commands="$ac_config_commands depfiles"


am_make=${MAKE-make}
cat > confinc << 'END'
am__doit:
	@echo this is the am__doit target
.PHONY: am__doit
END
# If we don't find an include directive, just comment out the code.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
$as_echo_n "checking for style of include used by $am_make... " >&6; }
am__include="#"
am__quote=
_am_result=none
# First try GNU make style include.
echo "include confinc" > confmf
# Ignore all kinds of additional output from 'make'.
case `$am_make -s -f confmf 2> /dev/null` in #(
*the\ am__doit\ target*)
  am__include=include
  am__quote=
  _am_result=GNU
  ;;
esac
# Now try BSD make style include.
if test "$am__include" = "#"; then
   echo '.include "confinc"' > confmf
   case `$am_make -s -f confmf 2> /dev/null` in #(
   *the\ am__doit\ target*)
     am__include=.include
     am__quote="\""
     _am_result=BSD
     ;;
   esac
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
$as_echo "$_am_result" >&6; }
rm -f confinc confmf

# Check whether --enable-dependency-tracking was given.
if test "${enable_dependency_tracking+set}" = set; then :
  enableval=$enable_dependency_tracking;
fi

if test "x$enable_dependency_tracking" != xno; then
  am_depcomp="$ac_aux_dir/depcomp"
  AMDEPBACKSLASH='\'
  am__nodep='_no'
fi
 if test "x$enable_dependency_tracking" != xno; then
  AMDEP_TRUE=
  AMDEP_FALSE='#'
else
  AMDEP_TRUE='#'
  AMDEP_FALSE=
fi


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
          if test -n "$ac_tool_prefix"; then
    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  fi
fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl.exe
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl.exe
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CC" && break
done

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
fi

fi


test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "no acceptable C compiler found in \$PATH
See \`config.log' for more details" "$LINENO" 5; }

# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
# It will help us diagnose broken compilers, and finding out an intuition
# of exeext.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
$as_echo_n "checking whether the C compiler works... " >&6; }
ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`

# The possible output files:
ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"

ac_rmfiles=
for ac_file in $ac_files
do
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
  esac
done
rm -f $ac_rmfiles

if { { ac_try="$ac_link_default"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link_default") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then :
  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
# in a Makefile.  We should not override ac_cv_exeext if it was cached,
# so that the user can short-circuit this test for compilers unknown to
# Autoconf.
for ac_file in $ac_files ''
do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
	;;
    [ab].out )
	# We found the default executable, but exeext='' is most
	# certainly right.
	break;;
    *.* )
	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
	then :; else
	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	fi
	# We set ac_cv_exeext here because the later test for it is not
	# safe: cross compilers may not add the suffix if given an `-o'
	# argument, so we may need to know it at that point already.
	# Even if this section looks crufty: it has the advantage of
	# actually working.
	break;;
    * )
	break;;
  esac
done
test "$ac_cv_exeext" = no && ac_cv_exeext=

else
  ac_file=''
fi
if test -z "$ac_file"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "C compiler cannot create executables
See \`config.log' for more details" "$LINENO" 5; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
$as_echo_n "checking for C compiler default output file name... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
$as_echo "$ac_file" >&6; }
ac_exeext=$ac_cv_exeext

rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
$as_echo_n "checking for suffix of executables... " >&6; }
if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then :
  # If both `conftest.exe' and `conftest' are `present' (well, observable)
# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
# `rm'.
for ac_file in conftest.exe conftest conftest.*; do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	  break;;
    * ) break;;
  esac
done
else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details" "$LINENO" 5; }
fi
rm -f conftest conftest$ac_cv_exeext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
$as_echo "$ac_cv_exeext" >&6; }

rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
FILE *f = fopen ("conftest.out", "w");
 return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
_ACEOF
ac_clean_files="$ac_clean_files conftest.out"
# Check that the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
$as_echo_n "checking whether we are cross compiling... " >&6; }
if test "$cross_compiling" != yes; then
  { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
  if { ac_try='./conftest$ac_cv_exeext'
  { { case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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    cross_compiling=no
  else
    if test "$cross_compiling" = maybe; then
	cross_compiling=yes
    else
	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot run C compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details" "$LINENO" 5; }
    fi
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
$as_echo "$cross_compiling" >&6; }

rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
ac_clean_files=$ac_clean_files_save
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
$as_echo_n "checking for suffix of object files... " >&6; }
if ${ac_cv_objext+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.o conftest.obj
if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then :
  for ac_file in conftest.o conftest.obj conftest.*; do
  test -f "$ac_file" || continue;
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
       break;;
  esac
done
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of object files: cannot compile
See \`config.log' for more details" "$LINENO" 5; }
fi
rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
$as_echo "$ac_cv_objext" >&6; }
OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
if ${ac_cv_c_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
$as_echo "$ac_cv_c_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
  GCC=yes
else
  GCC=
fi
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
$as_echo_n "checking whether $CC accepts -g... " >&6; }
if ${ac_cv_prog_cc_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_save_c_werror_flag=$ac_c_werror_flag
   ac_c_werror_flag=yes
   ac_cv_prog_cc_g=no
   CFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
else
  CFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

else
  ac_c_werror_flag=$ac_save_c_werror_flag
	 CFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_c_werror_flag=$ac_save_c_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
$as_echo "$ac_cv_prog_cc_g" >&6; }
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
if ${ac_cv_prog_cc_c89+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_prog_cc_c89=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
#include 
struct stat;
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not '\xHH' hex character constants.
   These don't provoke an error unfortunately, instead are silently treated
   as 'x'.  The following induces an error, until -std is added to get
   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
   array size at least.  It's necessary to write '\x00'==0 to get something
   that's true only with -std.  */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];

/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
   inside strings and character constants.  */
#define FOO(x) 'x'
int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int
main ()
{
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  ;
  return 0;
}
_ACEOF
for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_c89=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext
  test "x$ac_cv_prog_cc_c89" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC

fi
# AC_CACHE_VAL
case "x$ac_cv_prog_cc_c89" in
  x)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
$as_echo "none needed" >&6; } ;;
  xno)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
$as_echo "unsupported" >&6; } ;;
  *)
    CC="$CC $ac_cv_prog_cc_c89"
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
esac
if test "x$ac_cv_prog_cc_c89" != xno; then :

fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
if ${am_cv_prog_cc_c_o+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
  # Make sure it works both with $CC and with simple cc.
  # Following AC_PROG_CC_C_O, we do the test twice because some
  # compilers refuse to overwrite an existing .o file with -o,
  # though they will create one.
  am_cv_prog_cc_c_o=yes
  for am_i in 1 2; do
    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } \
         && test -f conftest2.$ac_objext; then
      : OK
    else
      am_cv_prog_cc_c_o=no
      break
    fi
  done
  rm -f core conftest*
  unset am_i
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
$as_echo "$am_cv_prog_cc_c_o" >&6; }
if test "$am_cv_prog_cc_c_o" != yes; then
   # Losing compiler, so override with the script.
   # FIXME: It is wrong to rewrite CC.
   # But if we don't then we get into trouble of one sort or another.
   # A longer-term fix would be to have automake use am__CC in this case,
   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
   CC="$am_aux_dir/compile $CC"
fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


depcc="$CC"   am_compiler_list=

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
$as_echo_n "checking dependency style of $depcc... " >&6; }
if ${am_cv_CC_dependencies_compiler_type+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  # We make a subdir and do the tests there.  Otherwise we can end up
  # making bogus files that we don't know about and never remove.  For
  # instance it was reported that on HP-UX the gcc test will end up
  # making a dummy file named 'D' -- because '-MD' means "put the output
  # in D".
  rm -rf conftest.dir
  mkdir conftest.dir
  # Copy depcomp to subdir because otherwise we won't find it if we're
  # using a relative directory.
  cp "$am_depcomp" conftest.dir
  cd conftest.dir
  # We will build objects and dependencies in a subdirectory because
  # it helps to detect inapplicable dependency modes.  For instance
  # both Tru64's cc and ICC support -MD to output dependencies as a
  # side effect of compilation, but ICC will put the dependencies in
  # the current directory while Tru64 will put them in the object
  # directory.
  mkdir sub

  am_cv_CC_dependencies_compiler_type=none
  if test "$am_compiler_list" = ""; then
     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
  fi
  am__universal=false
  case " $depcc " in #(
     *\ -arch\ *\ -arch\ *) am__universal=true ;;
     esac

  for depmode in $am_compiler_list; do
    # Setup a source with many dependencies, because some compilers
    # like to wrap large dependency lists on column 80 (with \), and
    # we should not choose a depcomp mode which is confused by this.
    #
    # We need to recreate these files for each test, as the compiler may
    # overwrite some of them when testing with obscure command lines.
    # This happens at least with the AIX C compiler.
    : > sub/conftest.c
    for i in 1 2 3 4 5 6; do
      echo '#include "conftst'$i'.h"' >> sub/conftest.c
      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
      # Solaris 10 /bin/sh.
      echo '/* dummy */' > sub/conftst$i.h
    done
    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf

    # We check with '-c' and '-o' for the sake of the "dashmstdout"
    # mode.  It turns out that the SunPro C++ compiler does not properly
    # handle '-M -o', and we need to detect this.  Also, some Intel
    # versions had trouble with output in subdirs.
    am__obj=sub/conftest.${OBJEXT-o}
    am__minus_obj="-o $am__obj"
    case $depmode in
    gcc)
      # This depmode causes a compiler race in universal mode.
      test "$am__universal" = false || continue
      ;;
    nosideeffect)
      # After this tag, mechanisms are not by side-effect, so they'll
      # only be used when explicitly requested.
      if test "x$enable_dependency_tracking" = xyes; then
	continue
      else
	break
      fi
      ;;
    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
      # This compiler won't grok '-c -o', but also, the minuso test has
      # not run yet.  These depmodes are late enough in the game, and
      # so weak that their functioning should not be impacted.
      am__obj=conftest.${OBJEXT-o}
      am__minus_obj=
      ;;
    none) break ;;
    esac
    if depmode=$depmode \
       source=sub/conftest.c object=$am__obj \
       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
         >/dev/null 2>conftest.err &&
       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
      # icc doesn't choke on unknown options, it will just issue warnings
      # or remarks (even with -Werror).  So we grep stderr for any message
      # that says an option was ignored or not supported.
      # When given -MP, icc 7.0 and 7.1 complain thusly:
      #   icc: Command line warning: ignoring option '-M'; no argument required
      # The diagnosis changed in icc 8.0:
      #   icc: Command line remark: option '-MP' not supported
      if (grep 'ignoring option' conftest.err ||
          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
        am_cv_CC_dependencies_compiler_type=$depmode
        break
      fi
    fi
  done

  cd ..
  rm -rf conftest.dir
else
  am_cv_CC_dependencies_compiler_type=none
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type

 if
  test "x$enable_dependency_tracking" != xno \
  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
  am__fastdepCC_TRUE=
  am__fastdepCC_FALSE='#'
else
  am__fastdepCC_TRUE='#'
  am__fastdepCC_FALSE=
fi



cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return __PPC64__
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  default_enable_libunwind=no
                   default_tcmalloc_pagesize=64
else
  default_enable_libunwind=yes
                   default_tcmalloc_pagesize=8
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

# Check whether --enable-cpu-profiler was given.
if test "${enable_cpu_profiler+set}" = set; then :
  enableval=$enable_cpu_profiler;
else
  enable_cpu_profiler="$default_enable_cpu_profiler"
fi

# Check whether --enable-heap-profiler was given.
if test "${enable_heap_profiler+set}" = set; then :
  enableval=$enable_heap_profiler;
else
  enable_heap_profiler="$default_enable_heap_profiler"
fi

# Check whether --enable-heap-checker was given.
if test "${enable_heap_checker+set}" = set; then :
  enableval=$enable_heap_checker;
else
  enable_heap_checker="$default_enable_heap_checker"
fi

# Check whether --enable-debugalloc was given.
if test "${enable_debugalloc+set}" = set; then :
  enableval=$enable_debugalloc;
else
  enable_debugalloc="$default_enable_debugalloc"
fi

# Check whether --enable-minimal was given.
if test "${enable_minimal+set}" = set; then :
  enableval=$enable_minimal;
else
  enable_minimal="$default_enable_minimal"
fi

if test "$enable_minimal" = yes; then
  enable_cpu_profiler=no
  enable_heap_profiler=no
  enable_heap_checker=no
fi
# Check whether --enable-stacktrace-via-backtrace was given.
if test "${enable_stacktrace_via_backtrace+set}" = set; then :
  enableval=$enable_stacktrace_via_backtrace; enable_backtrace=yes
fi

# Check whether --enable-libunwind was given.
if test "${enable_libunwind+set}" = set; then :
  enableval=$enable_libunwind;
else
  enable_libunwind="$default_enable_libunwind"
fi


# Check whether --with-tcmalloc-pagesize was given.
if test "${with_tcmalloc_pagesize+set}" = set; then :
  withval=$with_tcmalloc_pagesize;
else
  with_tcmalloc_pagesize=$default_tcmalloc_pagesize
fi


# Check whether --with-tcmalloc-alignment was given.
if test "${with_tcmalloc_alignment+set}" = set; then :
  withval=$with_tcmalloc_alignment;
else
  with_tcmalloc_alignment=$default_tcmalloc_alignment
fi


case "$with_tcmalloc_pagesize" in
  8)
       #Default tcmalloc page size.
       ;;
  32)

$as_echo "#define TCMALLOC_32K_PAGES 1" >>confdefs.h
;;
  64)

$as_echo "#define TCMALLOC_64K_PAGES 1" >>confdefs.h
;;
  *)
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size." >&5
$as_echo "$as_me: WARNING: ${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size." >&2;}
esac
case "$with_tcmalloc_alignment" in
  8)

$as_echo "#define TCMALLOC_ALIGN_8BYTES 1" >>confdefs.h
;;
  16)
       #Default tcmalloc allocation alignment.
       ;;
  *)
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment." >&5
$as_echo "$as_me: WARNING: ${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment." >&2;}
esac

# Checks for programs.
ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -z "$CXX"; then
  if test -n "$CCC"; then
    CXX=$CCC
  else
    if test -n "$ac_tool_prefix"; then
  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
$as_echo "$CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
$as_echo "$ac_ct_CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CXX" && break
done

  if test "x$ac_ct_CXX" = x; then
    CXX="g++"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CXX=$ac_ct_CXX
  fi
fi

  fi
fi
# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
if ${ac_cv_cxx_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
  GXX=yes
else
  GXX=
fi
ac_test_CXXFLAGS=${CXXFLAGS+set}
ac_save_CXXFLAGS=$CXXFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
$as_echo_n "checking whether $CXX accepts -g... " >&6; }
if ${ac_cv_prog_cxx_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
   ac_cxx_werror_flag=yes
   ac_cv_prog_cxx_g=no
   CXXFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_prog_cxx_g=yes
else
  CXXFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

else
  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
	 CXXFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_prog_cxx_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
$as_echo "$ac_cv_prog_cxx_g" >&6; }
if test "$ac_test_CXXFLAGS" = set; then
  CXXFLAGS=$ac_save_CXXFLAGS
elif test $ac_cv_prog_cxx_g = yes; then
  if test "$GXX" = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-g"
  fi
else
  if test "$GXX" = yes; then
    CXXFLAGS="-O2"
  else
    CXXFLAGS=
  fi
fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

depcc="$CXX"  am_compiler_list=

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
$as_echo_n "checking dependency style of $depcc... " >&6; }
if ${am_cv_CXX_dependencies_compiler_type+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  # We make a subdir and do the tests there.  Otherwise we can end up
  # making bogus files that we don't know about and never remove.  For
  # instance it was reported that on HP-UX the gcc test will end up
  # making a dummy file named 'D' -- because '-MD' means "put the output
  # in D".
  rm -rf conftest.dir
  mkdir conftest.dir
  # Copy depcomp to subdir because otherwise we won't find it if we're
  # using a relative directory.
  cp "$am_depcomp" conftest.dir
  cd conftest.dir
  # We will build objects and dependencies in a subdirectory because
  # it helps to detect inapplicable dependency modes.  For instance
  # both Tru64's cc and ICC support -MD to output dependencies as a
  # side effect of compilation, but ICC will put the dependencies in
  # the current directory while Tru64 will put them in the object
  # directory.
  mkdir sub

  am_cv_CXX_dependencies_compiler_type=none
  if test "$am_compiler_list" = ""; then
     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
  fi
  am__universal=false
  case " $depcc " in #(
     *\ -arch\ *\ -arch\ *) am__universal=true ;;
     esac

  for depmode in $am_compiler_list; do
    # Setup a source with many dependencies, because some compilers
    # like to wrap large dependency lists on column 80 (with \), and
    # we should not choose a depcomp mode which is confused by this.
    #
    # We need to recreate these files for each test, as the compiler may
    # overwrite some of them when testing with obscure command lines.
    # This happens at least with the AIX C compiler.
    : > sub/conftest.c
    for i in 1 2 3 4 5 6; do
      echo '#include "conftst'$i'.h"' >> sub/conftest.c
      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
      # Solaris 10 /bin/sh.
      echo '/* dummy */' > sub/conftst$i.h
    done
    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf

    # We check with '-c' and '-o' for the sake of the "dashmstdout"
    # mode.  It turns out that the SunPro C++ compiler does not properly
    # handle '-M -o', and we need to detect this.  Also, some Intel
    # versions had trouble with output in subdirs.
    am__obj=sub/conftest.${OBJEXT-o}
    am__minus_obj="-o $am__obj"
    case $depmode in
    gcc)
      # This depmode causes a compiler race in universal mode.
      test "$am__universal" = false || continue
      ;;
    nosideeffect)
      # After this tag, mechanisms are not by side-effect, so they'll
      # only be used when explicitly requested.
      if test "x$enable_dependency_tracking" = xyes; then
	continue
      else
	break
      fi
      ;;
    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
      # This compiler won't grok '-c -o', but also, the minuso test has
      # not run yet.  These depmodes are late enough in the game, and
      # so weak that their functioning should not be impacted.
      am__obj=conftest.${OBJEXT-o}
      am__minus_obj=
      ;;
    none) break ;;
    esac
    if depmode=$depmode \
       source=sub/conftest.c object=$am__obj \
       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
         >/dev/null 2>conftest.err &&
       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
      # icc doesn't choke on unknown options, it will just issue warnings
      # or remarks (even with -Werror).  So we grep stderr for any message
      # that says an option was ignored or not supported.
      # When given -MP, icc 7.0 and 7.1 complain thusly:
      #   icc: Command line warning: ignoring option '-M'; no argument required
      # The diagnosis changed in icc 8.0:
      #   icc: Command line remark: option '-MP' not supported
      if (grep 'ignoring option' conftest.err ||
          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
        am_cv_CXX_dependencies_compiler_type=$depmode
        break
      fi
    fi
  done

  cd ..
  rm -rf conftest.dir
else
  am_cv_CXX_dependencies_compiler_type=none
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" >&5
$as_echo "$am_cv_CXX_dependencies_compiler_type" >&6; }
CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type

 if
  test "x$enable_dependency_tracking" != xno \
  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
  am__fastdepCXX_TRUE=
  am__fastdepCXX_FALSE='#'
else
  am__fastdepCXX_TRUE='#'
  am__fastdepCXX_FALSE=
fi


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
          if test -n "$ac_tool_prefix"; then
    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  fi
fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl.exe
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl.exe
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CC" && break
done

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
fi

fi


test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "no acceptable C compiler found in \$PATH
See \`config.log' for more details" "$LINENO" 5; }

# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
if ${ac_cv_c_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
$as_echo "$ac_cv_c_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
  GCC=yes
else
  GCC=
fi
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
$as_echo_n "checking whether $CC accepts -g... " >&6; }
if ${ac_cv_prog_cc_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_save_c_werror_flag=$ac_c_werror_flag
   ac_c_werror_flag=yes
   ac_cv_prog_cc_g=no
   CFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
else
  CFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

else
  ac_c_werror_flag=$ac_save_c_werror_flag
	 CFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_c_werror_flag=$ac_save_c_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
$as_echo "$ac_cv_prog_cc_g" >&6; }
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
if ${ac_cv_prog_cc_c89+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_prog_cc_c89=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
#include 
struct stat;
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not '\xHH' hex character constants.
   These don't provoke an error unfortunately, instead are silently treated
   as 'x'.  The following induces an error, until -std is added to get
   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
   array size at least.  It's necessary to write '\x00'==0 to get something
   that's true only with -std.  */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];

/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
   inside strings and character constants.  */
#define FOO(x) 'x'
int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int
main ()
{
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  ;
  return 0;
}
_ACEOF
for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_c89=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext
  test "x$ac_cv_prog_cc_c89" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC

fi
# AC_CACHE_VAL
case "x$ac_cv_prog_cc_c89" in
  x)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
$as_echo "none needed" >&6; } ;;
  xno)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
$as_echo "unsupported" >&6; } ;;
  *)
    CC="$CC $ac_cv_prog_cc_c89"
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
esac
if test "x$ac_cv_prog_cc_c89" != xno; then :

fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
if ${am_cv_prog_cc_c_o+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
  # Make sure it works both with $CC and with simple cc.
  # Following AC_PROG_CC_C_O, we do the test twice because some
  # compilers refuse to overwrite an existing .o file with -o,
  # though they will create one.
  am_cv_prog_cc_c_o=yes
  for am_i in 1 2; do
    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); } \
         && test -f conftest2.$ac_objext; then
      : OK
    else
      am_cv_prog_cc_c_o=no
      break
    fi
  done
  rm -f core conftest*
  unset am_i
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
$as_echo "$am_cv_prog_cc_c_o" >&6; }
if test "$am_cv_prog_cc_c_o" != yes; then
   # Losing compiler, so override with the script.
   # FIXME: It is wrong to rewrite CC.
   # But if we don't then we get into trouble of one sort or another.
   # A longer-term fix would be to have automake use am__CC in this case,
   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
   CC="$am_aux_dir/compile $CC"
fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


depcc="$CC"   am_compiler_list=

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
$as_echo_n "checking dependency style of $depcc... " >&6; }
if ${am_cv_CC_dependencies_compiler_type+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  # We make a subdir and do the tests there.  Otherwise we can end up
  # making bogus files that we don't know about and never remove.  For
  # instance it was reported that on HP-UX the gcc test will end up
  # making a dummy file named 'D' -- because '-MD' means "put the output
  # in D".
  rm -rf conftest.dir
  mkdir conftest.dir
  # Copy depcomp to subdir because otherwise we won't find it if we're
  # using a relative directory.
  cp "$am_depcomp" conftest.dir
  cd conftest.dir
  # We will build objects and dependencies in a subdirectory because
  # it helps to detect inapplicable dependency modes.  For instance
  # both Tru64's cc and ICC support -MD to output dependencies as a
  # side effect of compilation, but ICC will put the dependencies in
  # the current directory while Tru64 will put them in the object
  # directory.
  mkdir sub

  am_cv_CC_dependencies_compiler_type=none
  if test "$am_compiler_list" = ""; then
     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
  fi
  am__universal=false
  case " $depcc " in #(
     *\ -arch\ *\ -arch\ *) am__universal=true ;;
     esac

  for depmode in $am_compiler_list; do
    # Setup a source with many dependencies, because some compilers
    # like to wrap large dependency lists on column 80 (with \), and
    # we should not choose a depcomp mode which is confused by this.
    #
    # We need to recreate these files for each test, as the compiler may
    # overwrite some of them when testing with obscure command lines.
    # This happens at least with the AIX C compiler.
    : > sub/conftest.c
    for i in 1 2 3 4 5 6; do
      echo '#include "conftst'$i'.h"' >> sub/conftest.c
      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
      # Solaris 10 /bin/sh.
      echo '/* dummy */' > sub/conftst$i.h
    done
    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf

    # We check with '-c' and '-o' for the sake of the "dashmstdout"
    # mode.  It turns out that the SunPro C++ compiler does not properly
    # handle '-M -o', and we need to detect this.  Also, some Intel
    # versions had trouble with output in subdirs.
    am__obj=sub/conftest.${OBJEXT-o}
    am__minus_obj="-o $am__obj"
    case $depmode in
    gcc)
      # This depmode causes a compiler race in universal mode.
      test "$am__universal" = false || continue
      ;;
    nosideeffect)
      # After this tag, mechanisms are not by side-effect, so they'll
      # only be used when explicitly requested.
      if test "x$enable_dependency_tracking" = xyes; then
	continue
      else
	break
      fi
      ;;
    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
      # This compiler won't grok '-c -o', but also, the minuso test has
      # not run yet.  These depmodes are late enough in the game, and
      # so weak that their functioning should not be impacted.
      am__obj=conftest.${OBJEXT-o}
      am__minus_obj=
      ;;
    none) break ;;
    esac
    if depmode=$depmode \
       source=sub/conftest.c object=$am__obj \
       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
         >/dev/null 2>conftest.err &&
       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
      # icc doesn't choke on unknown options, it will just issue warnings
      # or remarks (even with -Werror).  So we grep stderr for any message
      # that says an option was ignored or not supported.
      # When given -MP, icc 7.0 and 7.1 complain thusly:
      #   icc: Command line warning: ignoring option '-M'; no argument required
      # The diagnosis changed in icc 8.0:
      #   icc: Command line remark: option '-MP' not supported
      if (grep 'ignoring option' conftest.err ||
          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
        am_cv_CC_dependencies_compiler_type=$depmode
        break
      fi
    fi
  done

  cd ..
  rm -rf conftest.dir
else
  am_cv_CC_dependencies_compiler_type=none
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type

 if
  test "x$enable_dependency_tracking" != xno \
  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
  am__fastdepCC_TRUE=
  am__fastdepCC_FALSE='#'
else
  am__fastdepCC_TRUE='#'
  am__fastdepCC_FALSE=
fi


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
$as_echo_n "checking how to run the C preprocessor... " >&6; }
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
  if ${ac_cv_prog_CPP+:} false; then :
  $as_echo_n "(cached) " >&6
else
      # Double quotes because CPP needs to be expanded
    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer  to  if __STDC__ is defined, since
  #  exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include 
#else
# include 
#endif
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :
  break
fi

    done
    ac_cv_prog_CPP=$CPP

fi
  CPP=$ac_cv_prog_CPP
else
  ac_cv_prog_CPP=$CPP
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
$as_echo "$CPP" >&6; }
ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer  to  if __STDC__ is defined, since
  #  exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include 
#else
# include 
#endif
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :

else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

 if test "$GCC" = yes; then
  GCC_TRUE=
  GCC_FALSE='#'
else
  GCC_TRUE='#'
  GCC_FALSE=
fi
   # let the Makefile know if we're gcc
      # shrug: autogen.sh suddenly needs this for some reason

# Check if we have an objcopy installed that supports -W
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}objcopy", so it can be a program name with args.
set dummy ${ac_tool_prefix}objcopy; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_OBJCOPY+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$OBJCOPY"; then
  ac_cv_prog_OBJCOPY="$OBJCOPY" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_OBJCOPY="${ac_tool_prefix}objcopy"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
OBJCOPY=$ac_cv_prog_OBJCOPY
if test -n "$OBJCOPY"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJCOPY" >&5
$as_echo "$OBJCOPY" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_OBJCOPY"; then
  ac_ct_OBJCOPY=$OBJCOPY
  # Extract the first word of "objcopy", so it can be a program name with args.
set dummy objcopy; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_OBJCOPY+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_OBJCOPY"; then
  ac_cv_prog_ac_ct_OBJCOPY="$ac_ct_OBJCOPY" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_OBJCOPY="objcopy"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_OBJCOPY=$ac_cv_prog_ac_ct_OBJCOPY
if test -n "$ac_ct_OBJCOPY"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJCOPY" >&5
$as_echo "$ac_ct_OBJCOPY" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_OBJCOPY" = x; then
    OBJCOPY=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    OBJCOPY=$ac_ct_OBJCOPY
  fi
else
  OBJCOPY="$ac_cv_prog_OBJCOPY"
fi

if test -n "$OBJCOPY"; then :
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $OBJCOPY supports -W" >&5
$as_echo_n "checking if $OBJCOPY supports -W... " >&6; }
if ${gpt_cv_objcopy_weaken+:} false; then :
  $as_echo_n "(cached) " >&6
else
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
void foo() {} int main() {return 0;}
int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
        if "$OBJCOPY" -W foo conftest$ac_exeext /dev/null; then :
  gpt_cv_objcopy_weaken=yes
else
  gpt_cv_objcopy_weaken=no
fi
else
  gpt_cv_objcopy_weaken=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gpt_cv_objcopy_weaken" >&5
$as_echo "$gpt_cv_objcopy_weaken" >&6; }
else
  gpt_cv_objcopy_weaken=no
fi
 if test $gpt_cv_objcopy_weaken = yes; then
  HAVE_OBJCOPY_WEAKEN_TRUE=
  HAVE_OBJCOPY_WEAKEN_FALSE='#'
else
  HAVE_OBJCOPY_WEAKEN_TRUE='#'
  HAVE_OBJCOPY_WEAKEN_FALSE=
fi


case `pwd` in
  *\ * | *\	*)
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
esac



macro_version='2.4.2'
macro_revision='1.3337'













ltmain="$ac_aux_dir/ltmain.sh"

# Backslashify metacharacters that are still active within
# double-quoted strings.
sed_quote_subst='s/\(["`$\\]\)/\\\1/g'

# Same as above, but do not quote variable references.
double_quote_subst='s/\(["`\\]\)/\\\1/g'

# Sed substitution to delay expansion of an escaped shell variable in a
# double_quote_subst'ed string.
delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'

# Sed substitution to delay expansion of an escaped single quote.
delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'

# Sed substitution to avoid accidental globbing in evaled expressions
no_glob_subst='s/\*/\\\*/g'

ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
$as_echo_n "checking how to print strings... " >&6; }
# Test print first, because it will be a builtin if present.
if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
  ECHO='print -r --'
elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
  ECHO='printf %s\n'
else
  # Use this function as a fallback that always works.
  func_fallback_echo ()
  {
    eval 'cat <<_LTECHO_EOF
$1
_LTECHO_EOF'
  }
  ECHO='func_fallback_echo'
fi

# func_echo_all arg...
# Invoke $ECHO with all args, space-separated.
func_echo_all ()
{
    $ECHO ""
}

case "$ECHO" in
  printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5
$as_echo "printf" >&6; } ;;
  print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
$as_echo "print -r" >&6; } ;;
  *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5
$as_echo "cat" >&6; } ;;
esac














{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
$as_echo_n "checking for a sed that does not truncate output... " >&6; }
if ${ac_cv_path_SED+:} false; then :
  $as_echo_n "(cached) " >&6
else
            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
     for ac_i in 1 2 3 4 5 6 7; do
       ac_script="$ac_script$as_nl$ac_script"
     done
     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
     { ac_script=; unset ac_script;}
     if test -z "$SED"; then
  ac_path_SED_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in sed gsed; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_SED" || continue
# Check for GNU ac_path_SED and select it if it is found.
  # Check for GNU $ac_path_SED
case `"$ac_path_SED" --version 2>&1` in
*GNU*)
  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo '' >> "conftest.nl"
    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_SED_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_SED="$ac_path_SED"
      ac_path_SED_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_SED_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_SED"; then
    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
  fi
else
  ac_cv_path_SED=$SED
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
$as_echo "$ac_cv_path_SED" >&6; }
 SED="$ac_cv_path_SED"
  rm -f conftest.sed

test -z "$SED" && SED=sed
Xsed="$SED -e 1s/^X//"











{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
if ${ac_cv_path_GREP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$GREP"; then
  ac_path_GREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in grep ggrep; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_GREP" || continue
# Check for GNU ac_path_GREP and select it if it is found.
  # Check for GNU $ac_path_GREP
case `"$ac_path_GREP" --version 2>&1` in
*GNU*)
  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo 'GREP' >> "conftest.nl"
    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_GREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_GREP="$ac_path_GREP"
      ac_path_GREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_GREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_GREP"; then
    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_GREP=$GREP
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
$as_echo "$ac_cv_path_GREP" >&6; }
 GREP="$ac_cv_path_GREP"


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
$as_echo_n "checking for egrep... " >&6; }
if ${ac_cv_path_EGREP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
   then ac_cv_path_EGREP="$GREP -E"
   else
     if test -z "$EGREP"; then
  ac_path_EGREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in egrep; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_EGREP" || continue
# Check for GNU ac_path_EGREP and select it if it is found.
  # Check for GNU $ac_path_EGREP
case `"$ac_path_EGREP" --version 2>&1` in
*GNU*)
  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo 'EGREP' >> "conftest.nl"
    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_EGREP="$ac_path_EGREP"
      ac_path_EGREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_EGREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_EGREP"; then
    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_EGREP=$EGREP
fi

   fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
$as_echo "$ac_cv_path_EGREP" >&6; }
 EGREP="$ac_cv_path_EGREP"


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
$as_echo_n "checking for fgrep... " >&6; }
if ${ac_cv_path_FGREP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
   then ac_cv_path_FGREP="$GREP -F"
   else
     if test -z "$FGREP"; then
  ac_path_FGREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in fgrep; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_FGREP" || continue
# Check for GNU ac_path_FGREP and select it if it is found.
  # Check for GNU $ac_path_FGREP
case `"$ac_path_FGREP" --version 2>&1` in
*GNU*)
  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo 'FGREP' >> "conftest.nl"
    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_FGREP="$ac_path_FGREP"
      ac_path_FGREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_FGREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_FGREP"; then
    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_FGREP=$FGREP
fi

   fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
$as_echo "$ac_cv_path_FGREP" >&6; }
 FGREP="$ac_cv_path_FGREP"


test -z "$GREP" && GREP=grep



















# Check whether --with-gnu-ld was given.
if test "${with_gnu_ld+set}" = set; then :
  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
else
  with_gnu_ld=no
fi

ac_prog=ld
if test "$GCC" = yes; then
  # Check if gcc -print-prog-name=ld gives a path.
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
$as_echo_n "checking for ld used by $CC... " >&6; }
  case $host in
  *-*-mingw*)
    # gcc leaves a trailing carriage return which upsets mingw
    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
  *)
    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
  esac
  case $ac_prog in
    # Accept absolute paths.
    [\\/]* | ?:[\\/]*)
      re_direlt='/[^/][^/]*/\.\./'
      # Canonicalize the pathname of ld
      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
      done
      test -z "$LD" && LD="$ac_prog"
      ;;
  "")
    # If it fails, then pretend we aren't using GCC.
    ac_prog=ld
    ;;
  *)
    # If it is relative, then search for the first ld in PATH.
    with_gnu_ld=unknown
    ;;
  esac
elif test "$with_gnu_ld" = yes; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
$as_echo_n "checking for GNU ld... " >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
$as_echo_n "checking for non-GNU ld... " >&6; }
fi
if ${lt_cv_path_LD+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$LD"; then
  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
  for ac_dir in $PATH; do
    IFS="$lt_save_ifs"
    test -z "$ac_dir" && ac_dir=.
    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
      lt_cv_path_LD="$ac_dir/$ac_prog"
      # Check to see if the program is GNU ld.  I'd rather use --version,
      # but apparently some variants of GNU ld only accept -v.
      # Break only if it was the GNU/non-GNU ld that we prefer.
      case `"$lt_cv_path_LD" -v 2>&1 &5
$as_echo "$LD" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
if ${lt_cv_prog_gnu_ld+:} false; then :
  $as_echo_n "(cached) " >&6
else
  # I'd rather use --version here, but apparently some GNU lds only accept -v.
case `$LD -v 2>&1 &5
$as_echo "$lt_cv_prog_gnu_ld" >&6; }
with_gnu_ld=$lt_cv_prog_gnu_ld









{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
if ${lt_cv_path_NM+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$NM"; then
  # Let the user override the test.
  lt_cv_path_NM="$NM"
else
  lt_nm_to_check="${ac_tool_prefix}nm"
  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
    lt_nm_to_check="$lt_nm_to_check nm"
  fi
  for lt_tmp_nm in $lt_nm_to_check; do
    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
      IFS="$lt_save_ifs"
      test -z "$ac_dir" && ac_dir=.
      tmp_nm="$ac_dir/$lt_tmp_nm"
      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
	# Check to see if the nm accepts a BSD-compat flag.
	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
	#   nm: unknown option "B" ignored
	# Tru64's nm complains that /dev/null is an invalid object file
	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
	*/dev/null* | *'Invalid file or object type'*)
	  lt_cv_path_NM="$tmp_nm -B"
	  break
	  ;;
	*)
	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
	  */dev/null*)
	    lt_cv_path_NM="$tmp_nm -p"
	    break
	    ;;
	  *)
	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
	    continue # so that we can try to find one that supports BSD flags
	    ;;
	  esac
	  ;;
	esac
      fi
    done
    IFS="$lt_save_ifs"
  done
  : ${lt_cv_path_NM=no}
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
$as_echo "$lt_cv_path_NM" >&6; }
if test "$lt_cv_path_NM" != "no"; then
  NM="$lt_cv_path_NM"
else
  # Didn't find any BSD compatible name lister, look for dumpbin.
  if test -n "$DUMPBIN"; then :
    # Let the user override the test.
  else
    if test -n "$ac_tool_prefix"; then
  for ac_prog in dumpbin "link -dump"
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_DUMPBIN+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$DUMPBIN"; then
  ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
DUMPBIN=$ac_cv_prog_DUMPBIN
if test -n "$DUMPBIN"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
$as_echo "$DUMPBIN" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$DUMPBIN" && break
  done
fi
if test -z "$DUMPBIN"; then
  ac_ct_DUMPBIN=$DUMPBIN
  for ac_prog in dumpbin "link -dump"
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_DUMPBIN"; then
  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
if test -n "$ac_ct_DUMPBIN"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
$as_echo "$ac_ct_DUMPBIN" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_DUMPBIN" && break
done

  if test "x$ac_ct_DUMPBIN" = x; then
    DUMPBIN=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    DUMPBIN=$ac_ct_DUMPBIN
  fi
fi

    case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
    *COFF*)
      DUMPBIN="$DUMPBIN -symbols"
      ;;
    *)
      DUMPBIN=:
      ;;
    esac
  fi

  if test "$DUMPBIN" != ":"; then
    NM="$DUMPBIN"
  fi
fi
test -z "$NM" && NM=nm






{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
$as_echo_n "checking the name lister ($NM) interface... " >&6; }
if ${lt_cv_nm_interface+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_nm_interface="BSD nm"
  echo "int some_variable = 0;" > conftest.$ac_ext
  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
  (eval "$ac_compile" 2>conftest.err)
  cat conftest.err >&5
  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
  cat conftest.err >&5
  (eval echo "\"\$as_me:$LINENO: output\"" >&5)
  cat conftest.out >&5
  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
    lt_cv_nm_interface="MS dumpbin"
  fi
  rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
$as_echo "$lt_cv_nm_interface" >&6; }

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
$as_echo_n "checking whether ln -s works... " >&6; }
LN_S=$as_ln_s
if test "$LN_S" = "ln -s"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
$as_echo "no, using $LN_S" >&6; }
fi

# find the maximum length of command line arguments
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
$as_echo_n "checking the maximum length of command line arguments... " >&6; }
if ${lt_cv_sys_max_cmd_len+:} false; then :
  $as_echo_n "(cached) " >&6
else
    i=0
  teststring="ABCD"

  case $build_os in
  msdosdjgpp*)
    # On DJGPP, this test can blow up pretty badly due to problems in libc
    # (any single argument exceeding 2000 bytes causes a buffer overrun
    # during glob expansion).  Even if it were fixed, the result of this
    # check would be larger than it should be.
    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
    ;;

  gnu*)
    # Under GNU Hurd, this test is not required because there is
    # no limit to the length of command line arguments.
    # Libtool will interpret -1 as no limit whatsoever
    lt_cv_sys_max_cmd_len=-1;
    ;;

  cygwin* | mingw* | cegcc*)
    # On Win9x/ME, this test blows up -- it succeeds, but takes
    # about 5 minutes as the teststring grows exponentially.
    # Worse, since 9x/ME are not pre-emptively multitasking,
    # you end up with a "frozen" computer, even though with patience
    # the test eventually succeeds (with a max line length of 256k).
    # Instead, let's just punt: use the minimum linelength reported by
    # all of the supported platforms: 8192 (on NT/2K/XP).
    lt_cv_sys_max_cmd_len=8192;
    ;;

  mint*)
    # On MiNT this can take a long time and run out of memory.
    lt_cv_sys_max_cmd_len=8192;
    ;;

  amigaos*)
    # On AmigaOS with pdksh, this test takes hours, literally.
    # So we just punt and use a minimum line length of 8192.
    lt_cv_sys_max_cmd_len=8192;
    ;;

  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
    # This has been around since 386BSD, at least.  Likely further.
    if test -x /sbin/sysctl; then
      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
    elif test -x /usr/sbin/sysctl; then
      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
    else
      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
    fi
    # And add a safety zone
    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
    ;;

  interix*)
    # We know the value 262144 and hardcode it with a safety zone (like BSD)
    lt_cv_sys_max_cmd_len=196608
    ;;

  os2*)
    # The test takes a long time on OS/2.
    lt_cv_sys_max_cmd_len=8192
    ;;

  osf*)
    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
    # nice to cause kernel panics so lets avoid the loop below.
    # First set a reasonable default.
    lt_cv_sys_max_cmd_len=16384
    #
    if test -x /sbin/sysconfig; then
      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
        *1*) lt_cv_sys_max_cmd_len=-1 ;;
      esac
    fi
    ;;
  sco3.2v5*)
    lt_cv_sys_max_cmd_len=102400
    ;;
  sysv5* | sco5v6* | sysv4.2uw2*)
    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
    if test -n "$kargmax"; then
      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[	 ]//'`
    else
      lt_cv_sys_max_cmd_len=32768
    fi
    ;;
  *)
    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
    if test -n "$lt_cv_sys_max_cmd_len" && \
	test undefined != "$lt_cv_sys_max_cmd_len"; then
      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
    else
      # Make teststring a little bigger before we do anything with it.
      # a 1K string should be a reasonable start.
      for i in 1 2 3 4 5 6 7 8 ; do
        teststring=$teststring$teststring
      done
      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
      # If test is not a shell built-in, we'll probably end up computing a
      # maximum length that is only half of the actual maximum length, but
      # we can't tell.
      while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \
	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
	      test $i != 17 # 1/2 MB should be enough
      do
        i=`expr $i + 1`
        teststring=$teststring$teststring
      done
      # Only check the string length outside the loop.
      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
      teststring=
      # Add a significant safety factor because C++ compilers can tack on
      # massive amounts of additional arguments before passing them to the
      # linker.  It appears as though 1/2 is a usable value.
      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
    fi
    ;;
  esac

fi

if test -n $lt_cv_sys_max_cmd_len ; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
$as_echo "none" >&6; }
fi
max_cmd_len=$lt_cv_sys_max_cmd_len






: ${CP="cp -f"}
: ${MV="mv -f"}
: ${RM="rm -f"}

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5
$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; }
# Try some XSI features
xsi_shell=no
( _lt_dummy="a/b/c"
  test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \
      = c,a/b,b/c, \
    && eval 'test $(( 1 + 1 )) -eq 2 \
    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
  && xsi_shell=yes
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5
$as_echo "$xsi_shell" >&6; }


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5
$as_echo_n "checking whether the shell understands \"+=\"... " >&6; }
lt_shell_append=no
( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \
    >/dev/null 2>&1 \
  && lt_shell_append=yes
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5
$as_echo "$lt_shell_append" >&6; }


if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
  lt_unset=unset
else
  lt_unset=false
fi





# test EBCDIC or ASCII
case `echo X|tr X '\101'` in
 A) # ASCII based system
    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
  lt_SP2NL='tr \040 \012'
  lt_NL2SP='tr \015\012 \040\040'
  ;;
 *) # EBCDIC based system
  lt_SP2NL='tr \100 \n'
  lt_NL2SP='tr \r\n \100\100'
  ;;
esac









{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
$as_echo_n "checking how to convert $build file names to $host format... " >&6; }
if ${lt_cv_to_host_file_cmd+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $host in
  *-*-mingw* )
    case $build in
      *-*-mingw* ) # actually msys
        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
        ;;
      *-*-cygwin* )
        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
        ;;
      * ) # otherwise, assume *nix
        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
        ;;
    esac
    ;;
  *-*-cygwin* )
    case $build in
      *-*-mingw* ) # actually msys
        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
        ;;
      *-*-cygwin* )
        lt_cv_to_host_file_cmd=func_convert_file_noop
        ;;
      * ) # otherwise, assume *nix
        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
        ;;
    esac
    ;;
  * ) # unhandled hosts (and "normal" native builds)
    lt_cv_to_host_file_cmd=func_convert_file_noop
    ;;
esac

fi

to_host_file_cmd=$lt_cv_to_host_file_cmd
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
$as_echo "$lt_cv_to_host_file_cmd" >&6; }





{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; }
if ${lt_cv_to_tool_file_cmd+:} false; then :
  $as_echo_n "(cached) " >&6
else
  #assume ordinary cross tools, or native build.
lt_cv_to_tool_file_cmd=func_convert_file_noop
case $host in
  *-*-mingw* )
    case $build in
      *-*-mingw* ) # actually msys
        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
        ;;
    esac
    ;;
esac

fi

to_tool_file_cmd=$lt_cv_to_tool_file_cmd
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
$as_echo "$lt_cv_to_tool_file_cmd" >&6; }





{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
$as_echo_n "checking for $LD option to reload object files... " >&6; }
if ${lt_cv_ld_reload_flag+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_ld_reload_flag='-r'
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
$as_echo "$lt_cv_ld_reload_flag" >&6; }
reload_flag=$lt_cv_ld_reload_flag
case $reload_flag in
"" | " "*) ;;
*) reload_flag=" $reload_flag" ;;
esac
reload_cmds='$LD$reload_flag -o $output$reload_objs'
case $host_os in
  cygwin* | mingw* | pw32* | cegcc*)
    if test "$GCC" != yes; then
      reload_cmds=false
    fi
    ;;
  darwin*)
    if test "$GCC" = yes; then
      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
    else
      reload_cmds='$LD$reload_flag -o $output$reload_objs'
    fi
    ;;
esac









if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
set dummy ${ac_tool_prefix}objdump; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_OBJDUMP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$OBJDUMP"; then
  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
OBJDUMP=$ac_cv_prog_OBJDUMP
if test -n "$OBJDUMP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
$as_echo "$OBJDUMP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_OBJDUMP"; then
  ac_ct_OBJDUMP=$OBJDUMP
  # Extract the first word of "objdump", so it can be a program name with args.
set dummy objdump; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_OBJDUMP"; then
  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_OBJDUMP="objdump"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
if test -n "$ac_ct_OBJDUMP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
$as_echo "$ac_ct_OBJDUMP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_OBJDUMP" = x; then
    OBJDUMP="false"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    OBJDUMP=$ac_ct_OBJDUMP
  fi
else
  OBJDUMP="$ac_cv_prog_OBJDUMP"
fi

test -z "$OBJDUMP" && OBJDUMP=objdump









{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
$as_echo_n "checking how to recognize dependent libraries... " >&6; }
if ${lt_cv_deplibs_check_method+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_file_magic_cmd='$MAGIC_CMD'
lt_cv_file_magic_test_file=
lt_cv_deplibs_check_method='unknown'
# Need to set the preceding variable on all platforms that support
# interlibrary dependencies.
# 'none' -- dependencies not supported.
# `unknown' -- same as none, but documents that we really don't know.
# 'pass_all' -- all dependencies passed with no checks.
# 'test_compile' -- check by making test program.
# 'file_magic [[regex]]' -- check by looking for files in library path
# which responds to the $file_magic_cmd with a given extended regex.
# If you have `file' or equivalent on your system and you're not sure
# whether `pass_all' will *always* work, you probably want this one.

case $host_os in
aix[4-9]*)
  lt_cv_deplibs_check_method=pass_all
  ;;

beos*)
  lt_cv_deplibs_check_method=pass_all
  ;;

bsdi[45]*)
  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
  lt_cv_file_magic_cmd='/usr/bin/file -L'
  lt_cv_file_magic_test_file=/shlib/libc.so
  ;;

cygwin*)
  # func_win32_libid is a shell function defined in ltmain.sh
  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
  lt_cv_file_magic_cmd='func_win32_libid'
  ;;

mingw* | pw32*)
  # Base MSYS/MinGW do not provide the 'file' command needed by
  # func_win32_libid shell function, so use a weaker test based on 'objdump',
  # unless we find 'file', for example because we are cross-compiling.
  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
    lt_cv_file_magic_cmd='func_win32_libid'
  else
    # Keep this pattern in sync with the one in func_win32_libid.
    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
    lt_cv_file_magic_cmd='$OBJDUMP -f'
  fi
  ;;

cegcc*)
  # use the weaker test based on 'objdump'. See mingw*.
  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
  lt_cv_file_magic_cmd='$OBJDUMP -f'
  ;;

darwin* | rhapsody*)
  lt_cv_deplibs_check_method=pass_all
  ;;

freebsd* | dragonfly*)
  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
    case $host_cpu in
    i*86 )
      # Not sure whether the presence of OpenBSD here was a mistake.
      # Let's accept both of them until this is cleared up.
      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
      lt_cv_file_magic_cmd=/usr/bin/file
      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
      ;;
    esac
  else
    lt_cv_deplibs_check_method=pass_all
  fi
  ;;

haiku*)
  lt_cv_deplibs_check_method=pass_all
  ;;

hpux10.20* | hpux11*)
  lt_cv_file_magic_cmd=/usr/bin/file
  case $host_cpu in
  ia64*)
    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
    ;;
  hppa*64*)
    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
    ;;
  *)
    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
    lt_cv_file_magic_test_file=/usr/lib/libc.sl
    ;;
  esac
  ;;

interix[3-9]*)
  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
  ;;

irix5* | irix6* | nonstopux*)
  case $LD in
  *-32|*"-32 ") libmagic=32-bit;;
  *-n32|*"-n32 ") libmagic=N32;;
  *-64|*"-64 ") libmagic=64-bit;;
  *) libmagic=never-match;;
  esac
  lt_cv_deplibs_check_method=pass_all
  ;;

# This must be glibc/ELF.
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
  lt_cv_deplibs_check_method=pass_all
  ;;

netbsd* | netbsdelf*-gnu)
  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
  else
    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
  fi
  ;;

newos6*)
  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
  lt_cv_file_magic_cmd=/usr/bin/file
  lt_cv_file_magic_test_file=/usr/lib/libnls.so
  ;;

*nto* | *qnx*)
  lt_cv_deplibs_check_method=pass_all
  ;;

openbsd*)
  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
  else
    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
  fi
  ;;

osf3* | osf4* | osf5*)
  lt_cv_deplibs_check_method=pass_all
  ;;

rdos*)
  lt_cv_deplibs_check_method=pass_all
  ;;

solaris*)
  lt_cv_deplibs_check_method=pass_all
  ;;

sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
  lt_cv_deplibs_check_method=pass_all
  ;;

sysv4 | sysv4.3*)
  case $host_vendor in
  motorola)
    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
    ;;
  ncr)
    lt_cv_deplibs_check_method=pass_all
    ;;
  sequent)
    lt_cv_file_magic_cmd='/bin/file'
    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
    ;;
  sni)
    lt_cv_file_magic_cmd='/bin/file'
    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
    lt_cv_file_magic_test_file=/lib/libc.so
    ;;
  siemens)
    lt_cv_deplibs_check_method=pass_all
    ;;
  pc)
    lt_cv_deplibs_check_method=pass_all
    ;;
  esac
  ;;

tpf*)
  lt_cv_deplibs_check_method=pass_all
  ;;
esac

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
$as_echo "$lt_cv_deplibs_check_method" >&6; }

file_magic_glob=
want_nocaseglob=no
if test "$build" = "$host"; then
  case $host_os in
  mingw* | pw32*)
    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
      want_nocaseglob=yes
    else
      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
    fi
    ;;
  esac
fi

file_magic_cmd=$lt_cv_file_magic_cmd
deplibs_check_method=$lt_cv_deplibs_check_method
test -z "$deplibs_check_method" && deplibs_check_method=unknown






















if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
set dummy ${ac_tool_prefix}dlltool; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_DLLTOOL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$DLLTOOL"; then
  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
DLLTOOL=$ac_cv_prog_DLLTOOL
if test -n "$DLLTOOL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
$as_echo "$DLLTOOL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_DLLTOOL"; then
  ac_ct_DLLTOOL=$DLLTOOL
  # Extract the first word of "dlltool", so it can be a program name with args.
set dummy dlltool; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_DLLTOOL"; then
  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
if test -n "$ac_ct_DLLTOOL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
$as_echo "$ac_ct_DLLTOOL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_DLLTOOL" = x; then
    DLLTOOL="false"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    DLLTOOL=$ac_ct_DLLTOOL
  fi
else
  DLLTOOL="$ac_cv_prog_DLLTOOL"
fi

test -z "$DLLTOOL" && DLLTOOL=dlltool










{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
$as_echo_n "checking how to associate runtime and link libraries... " >&6; }
if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_sharedlib_from_linklib_cmd='unknown'

case $host_os in
cygwin* | mingw* | pw32* | cegcc*)
  # two different shell functions defined in ltmain.sh
  # decide which to use based on capabilities of $DLLTOOL
  case `$DLLTOOL --help 2>&1` in
  *--identify-strict*)
    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
    ;;
  *)
    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
    ;;
  esac
  ;;
*)
  # fallback: assume linklib IS sharedlib
  lt_cv_sharedlib_from_linklib_cmd="$ECHO"
  ;;
esac

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO







if test -n "$ac_tool_prefix"; then
  for ac_prog in ar
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_AR+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$AR"; then
  ac_cv_prog_AR="$AR" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
AR=$ac_cv_prog_AR
if test -n "$AR"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
$as_echo "$AR" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$AR" && break
  done
fi
if test -z "$AR"; then
  ac_ct_AR=$AR
  for ac_prog in ar
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_AR+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_AR"; then
  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_AR="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_AR=$ac_cv_prog_ac_ct_AR
if test -n "$ac_ct_AR"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
$as_echo "$ac_ct_AR" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_AR" && break
done

  if test "x$ac_ct_AR" = x; then
    AR="false"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    AR=$ac_ct_AR
  fi
fi

: ${AR=ar}
: ${AR_FLAGS=cru}











{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
$as_echo_n "checking for archiver @FILE support... " >&6; }
if ${lt_cv_ar_at_file+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_ar_at_file=no
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  echo conftest.$ac_objext > conftest.lst
      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
  (eval $lt_ar_try) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
      if test "$ac_status" -eq 0; then
	# Ensure the archiver fails upon bogus file names.
	rm -f conftest.$ac_objext libconftest.a
	{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
  (eval $lt_ar_try) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
	if test "$ac_status" -ne 0; then
          lt_cv_ar_at_file=@
        fi
      fi
      rm -f conftest.* libconftest.a

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
$as_echo "$lt_cv_ar_at_file" >&6; }

if test "x$lt_cv_ar_at_file" = xno; then
  archiver_list_spec=
else
  archiver_list_spec=$lt_cv_ar_at_file
fi







if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
set dummy ${ac_tool_prefix}strip; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_STRIP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$STRIP"; then
  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
STRIP=$ac_cv_prog_STRIP
if test -n "$STRIP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
$as_echo "$STRIP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_STRIP"; then
  ac_ct_STRIP=$STRIP
  # Extract the first word of "strip", so it can be a program name with args.
set dummy strip; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_STRIP"; then
  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_STRIP="strip"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
if test -n "$ac_ct_STRIP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
$as_echo "$ac_ct_STRIP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_STRIP" = x; then
    STRIP=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    STRIP=$ac_ct_STRIP
  fi
else
  STRIP="$ac_cv_prog_STRIP"
fi

test -z "$STRIP" && STRIP=:






if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
set dummy ${ac_tool_prefix}ranlib; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_RANLIB+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$RANLIB"; then
  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
RANLIB=$ac_cv_prog_RANLIB
if test -n "$RANLIB"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
$as_echo "$RANLIB" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_RANLIB"; then
  ac_ct_RANLIB=$RANLIB
  # Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_RANLIB"; then
  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_RANLIB="ranlib"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
if test -n "$ac_ct_RANLIB"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
$as_echo "$ac_ct_RANLIB" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_RANLIB" = x; then
    RANLIB=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    RANLIB=$ac_ct_RANLIB
  fi
else
  RANLIB="$ac_cv_prog_RANLIB"
fi

test -z "$RANLIB" && RANLIB=:






# Determine commands to create old-style static archives.
old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
old_postinstall_cmds='chmod 644 $oldlib'
old_postuninstall_cmds=

if test -n "$RANLIB"; then
  case $host_os in
  openbsd*)
    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
    ;;
  *)
    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
    ;;
  esac
  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
fi

case $host_os in
  darwin*)
    lock_old_archive_extraction=yes ;;
  *)
    lock_old_archive_extraction=no ;;
esac







































# If no C compiler was specified, use CC.
LTCC=${LTCC-"$CC"}

# If no C compiler flags were specified, use CFLAGS.
LTCFLAGS=${LTCFLAGS-"$CFLAGS"}

# Allow CC to be a program name with arguments.
compiler=$CC


# Check for command to grab the raw symbol name followed by C symbol from nm.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
if ${lt_cv_sys_global_symbol_pipe+:} false; then :
  $as_echo_n "(cached) " >&6
else

# These are sane defaults that work on at least a few old systems.
# [They come from Ultrix.  What could be older than Ultrix?!! ;)]

# Character class describing NM global symbol codes.
symcode='[BCDEGRST]'

# Regexp to match symbols that can be accessed directly from C.
sympat='\([_A-Za-z][_A-Za-z0-9]*\)'

# Define system-specific variables.
case $host_os in
aix*)
  symcode='[BCDT]'
  ;;
cygwin* | mingw* | pw32* | cegcc*)
  symcode='[ABCDGISTW]'
  ;;
hpux*)
  if test "$host_cpu" = ia64; then
    symcode='[ABCDEGRST]'
  fi
  ;;
irix* | nonstopux*)
  symcode='[BCDEGRST]'
  ;;
osf*)
  symcode='[BCDEGQRST]'
  ;;
solaris*)
  symcode='[BDRT]'
  ;;
sco3.2v5*)
  symcode='[DT]'
  ;;
sysv4.2uw2*)
  symcode='[DT]'
  ;;
sysv5* | sco5v6* | unixware* | OpenUNIX*)
  symcode='[ABDT]'
  ;;
sysv4)
  symcode='[DFNSTU]'
  ;;
esac

# If we're using GNU nm, then use its standard symbol codes.
case `$NM -V 2>&1` in
*GNU* | *'with BFD'*)
  symcode='[ABCDGIRSTW]' ;;
esac

# Transform an extracted symbol line into a proper C declaration.
# Some systems (esp. on ia64) link data and code symbols differently,
# so use this general approach.
lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"

# Transform an extracted symbol line into symbol name and symbol address
lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\)[ ]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"\2\", (void *) \&\2},/p'"
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\)[ ]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"lib\2\", (void *) \&\2},/p'"

# Handle CRLF in mingw tool chain
opt_cr=
case $build_os in
mingw*)
  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
  ;;
esac

# Try without a prefix underscore, then with it.
for ac_symprfx in "" "_"; do

  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
  symxfrm="\\1 $ac_symprfx\\2 \\2"

  # Write the raw and C identifiers.
  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
    # Fake it for dumpbin and say T for any non-static function
    # and D for any global variable.
    # Also find C++ and __fastcall symbols from MSVC++,
    # which start with @ or ?.
    lt_cv_sys_global_symbol_pipe="$AWK '"\
"     {last_section=section; section=\$ 3};"\
"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
"     \$ 0!~/External *\|/{next};"\
"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
"     {if(hide[section]) next};"\
"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
"     ' prfx=^$ac_symprfx"
  else
    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
  fi
  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"

  # Check to see that the pipe works correctly.
  pipe_works=no

  rm -f conftest*
  cat > conftest.$ac_ext <<_LT_EOF
#ifdef __cplusplus
extern "C" {
#endif
char nm_test_var;
void nm_test_func(void);
void nm_test_func(void){}
#ifdef __cplusplus
}
#endif
int main(){nm_test_var='a';nm_test_func();return(0);}
_LT_EOF

  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then
    # Now try to grab the symbols.
    nlist=conftest.nm
    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
  (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && test -s "$nlist"; then
      # Try sorting and uniquifying the output.
      if sort "$nlist" | uniq > "$nlist"T; then
	mv -f "$nlist"T "$nlist"
      else
	rm -f "$nlist"T
      fi

      # Make sure that we snagged all the symbols we need.
      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
	  cat <<_LT_EOF > conftest.$ac_ext
/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
/* DATA imports from DLLs on WIN32 con't be const, because runtime
   relocations are performed -- see ld's documentation on pseudo-relocs.  */
# define LT_DLSYM_CONST
#elif defined(__osf__)
/* This system does not cope well with relocations in const data.  */
# define LT_DLSYM_CONST
#else
# define LT_DLSYM_CONST const
#endif

#ifdef __cplusplus
extern "C" {
#endif

_LT_EOF
	  # Now generate the symbol file.
	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'

	  cat <<_LT_EOF >> conftest.$ac_ext

/* The mapping between symbol names and symbols.  */
LT_DLSYM_CONST struct {
  const char *name;
  void       *address;
}
lt__PROGRAM__LTX_preloaded_symbols[] =
{
  { "@PROGRAM@", (void *) 0 },
_LT_EOF
	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
	  cat <<\_LT_EOF >> conftest.$ac_ext
  {0, (void *) 0}
};

/* This works around a problem in FreeBSD linker */
#ifdef FREEBSD_WORKAROUND
static const void *lt_preloaded_setup() {
  return lt__PROGRAM__LTX_preloaded_symbols;
}
#endif

#ifdef __cplusplus
}
#endif
_LT_EOF
	  # Now try linking the two files.
	  mv conftest.$ac_objext conftstm.$ac_objext
	  lt_globsym_save_LIBS=$LIBS
	  lt_globsym_save_CFLAGS=$CFLAGS
	  LIBS="conftstm.$ac_objext"
	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && test -s conftest${ac_exeext}; then
	    pipe_works=yes
	  fi
	  LIBS=$lt_globsym_save_LIBS
	  CFLAGS=$lt_globsym_save_CFLAGS
	else
	  echo "cannot find nm_test_func in $nlist" >&5
	fi
      else
	echo "cannot find nm_test_var in $nlist" >&5
      fi
    else
      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
    fi
  else
    echo "$progname: failed program was:" >&5
    cat conftest.$ac_ext >&5
  fi
  rm -rf conftest* conftst*

  # Do not use the global_symbol_pipe unless it works.
  if test "$pipe_works" = yes; then
    break
  else
    lt_cv_sys_global_symbol_pipe=
  fi
done

fi

if test -z "$lt_cv_sys_global_symbol_pipe"; then
  lt_cv_sys_global_symbol_to_cdecl=
fi
if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
$as_echo "failed" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
$as_echo "ok" >&6; }
fi

# Response file support.
if test "$lt_cv_nm_interface" = "MS dumpbin"; then
  nm_file_list_spec='@'
elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
  nm_file_list_spec='@'
fi



























{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
$as_echo_n "checking for sysroot... " >&6; }

# Check whether --with-sysroot was given.
if test "${with_sysroot+set}" = set; then :
  withval=$with_sysroot;
else
  with_sysroot=no
fi


lt_sysroot=
case ${with_sysroot} in #(
 yes)
   if test "$GCC" = yes; then
     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
   fi
   ;; #(
 /*)
   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
   ;; #(
 no|'')
   ;; #(
 *)
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${with_sysroot}" >&5
$as_echo "${with_sysroot}" >&6; }
   as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
   ;;
esac

 { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
$as_echo "${lt_sysroot:-no}" >&6; }





# Check whether --enable-libtool-lock was given.
if test "${enable_libtool_lock+set}" = set; then :
  enableval=$enable_libtool_lock;
fi

test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes

# Some flags need to be propagated to the compiler or linker for good
# libtool support.
case $host in
ia64-*-hpux*)
  # Find out which ABI we are using.
  echo 'int i;' > conftest.$ac_ext
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then
    case `/usr/bin/file conftest.$ac_objext` in
      *ELF-32*)
	HPUX_IA64_MODE="32"
	;;
      *ELF-64*)
	HPUX_IA64_MODE="64"
	;;
    esac
  fi
  rm -rf conftest*
  ;;
*-*-irix6*)
  # Find out which ABI we are using.
  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then
    if test "$lt_cv_prog_gnu_ld" = yes; then
      case `/usr/bin/file conftest.$ac_objext` in
	*32-bit*)
	  LD="${LD-ld} -melf32bsmip"
	  ;;
	*N32*)
	  LD="${LD-ld} -melf32bmipn32"
	  ;;
	*64-bit*)
	  LD="${LD-ld} -melf64bmip"
	;;
      esac
    else
      case `/usr/bin/file conftest.$ac_objext` in
	*32-bit*)
	  LD="${LD-ld} -32"
	  ;;
	*N32*)
	  LD="${LD-ld} -n32"
	  ;;
	*64-bit*)
	  LD="${LD-ld} -64"
	  ;;
      esac
    fi
  fi
  rm -rf conftest*
  ;;

x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
  # Find out which ABI we are using.
  echo 'int i;' > conftest.$ac_ext
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then
    case `/usr/bin/file conftest.o` in
      *32-bit*)
	case $host in
	  x86_64-*kfreebsd*-gnu)
	    LD="${LD-ld} -m elf_i386_fbsd"
	    ;;
	  x86_64-*linux*)
	    case `/usr/bin/file conftest.o` in
	      *x86-64*)
		LD="${LD-ld} -m elf32_x86_64"
		;;
	      *)
		LD="${LD-ld} -m elf_i386"
		;;
	    esac
	    ;;
	  powerpc64le-*)
	    LD="${LD-ld} -m elf32lppclinux"
	    ;;
	  powerpc64-*)
	    LD="${LD-ld} -m elf32ppclinux"
	    ;;
	  s390x-*linux*)
	    LD="${LD-ld} -m elf_s390"
	    ;;
	  sparc64-*linux*)
	    LD="${LD-ld} -m elf32_sparc"
	    ;;
	esac
	;;
      *64-bit*)
	case $host in
	  x86_64-*kfreebsd*-gnu)
	    LD="${LD-ld} -m elf_x86_64_fbsd"
	    ;;
	  x86_64-*linux*)
	    LD="${LD-ld} -m elf_x86_64"
	    ;;
	  powerpcle-*)
	    LD="${LD-ld} -m elf64lppc"
	    ;;
	  powerpc-*)
	    LD="${LD-ld} -m elf64ppc"
	    ;;
	  s390*-*linux*|s390*-*tpf*)
	    LD="${LD-ld} -m elf64_s390"
	    ;;
	  sparc*-*linux*)
	    LD="${LD-ld} -m elf64_sparc"
	    ;;
	esac
	;;
    esac
  fi
  rm -rf conftest*
  ;;

*-*-sco3.2v5*)
  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
  SAVE_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS -belf"
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
if ${lt_cv_cc_needs_belf+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  lt_cv_cc_needs_belf=yes
else
  lt_cv_cc_needs_belf=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
     ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
$as_echo "$lt_cv_cc_needs_belf" >&6; }
  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
    CFLAGS="$SAVE_CFLAGS"
  fi
  ;;
*-*solaris*)
  # Find out which ABI we are using.
  echo 'int i;' > conftest.$ac_ext
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then
    case `/usr/bin/file conftest.o` in
    *64-bit*)
      case $lt_cv_prog_gnu_ld in
      yes*)
        case $host in
        i?86-*-solaris*)
          LD="${LD-ld} -m elf_x86_64"
          ;;
        sparc*-*-solaris*)
          LD="${LD-ld} -m elf64_sparc"
          ;;
        esac
        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
          LD="${LD-ld}_sol2"
        fi
        ;;
      *)
	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
	  LD="${LD-ld} -64"
	fi
	;;
      esac
      ;;
    esac
  fi
  rm -rf conftest*
  ;;
esac

need_locks="$enable_libtool_lock"

if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
set dummy ${ac_tool_prefix}mt; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_MANIFEST_TOOL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$MANIFEST_TOOL"; then
  ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
if test -n "$MANIFEST_TOOL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
$as_echo "$MANIFEST_TOOL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
  ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
  # Extract the first word of "mt", so it can be a program name with args.
set dummy mt; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_MANIFEST_TOOL"; then
  ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
if test -n "$ac_ct_MANIFEST_TOOL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
$as_echo "$ac_ct_MANIFEST_TOOL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_MANIFEST_TOOL" = x; then
    MANIFEST_TOOL=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
  fi
else
  MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
fi

test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
if ${lt_cv_path_mainfest_tool+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_path_mainfest_tool=no
  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
  cat conftest.err >&5
  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
    lt_cv_path_mainfest_tool=yes
  fi
  rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
$as_echo "$lt_cv_path_mainfest_tool" >&6; }
if test "x$lt_cv_path_mainfest_tool" != xyes; then
  MANIFEST_TOOL=:
fi






  case $host_os in
    rhapsody* | darwin*)
    if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_DSYMUTIL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$DSYMUTIL"; then
  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
DSYMUTIL=$ac_cv_prog_DSYMUTIL
if test -n "$DSYMUTIL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
$as_echo "$DSYMUTIL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_DSYMUTIL"; then
  ac_ct_DSYMUTIL=$DSYMUTIL
  # Extract the first word of "dsymutil", so it can be a program name with args.
set dummy dsymutil; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_DSYMUTIL"; then
  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
if test -n "$ac_ct_DSYMUTIL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
$as_echo "$ac_ct_DSYMUTIL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_DSYMUTIL" = x; then
    DSYMUTIL=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    DSYMUTIL=$ac_ct_DSYMUTIL
  fi
else
  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
fi

    if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
set dummy ${ac_tool_prefix}nmedit; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_NMEDIT+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$NMEDIT"; then
  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
NMEDIT=$ac_cv_prog_NMEDIT
if test -n "$NMEDIT"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
$as_echo "$NMEDIT" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_NMEDIT"; then
  ac_ct_NMEDIT=$NMEDIT
  # Extract the first word of "nmedit", so it can be a program name with args.
set dummy nmedit; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_NMEDIT"; then
  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_NMEDIT="nmedit"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
if test -n "$ac_ct_NMEDIT"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
$as_echo "$ac_ct_NMEDIT" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_NMEDIT" = x; then
    NMEDIT=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    NMEDIT=$ac_ct_NMEDIT
  fi
else
  NMEDIT="$ac_cv_prog_NMEDIT"
fi

    if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
set dummy ${ac_tool_prefix}lipo; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_LIPO+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$LIPO"; then
  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
LIPO=$ac_cv_prog_LIPO
if test -n "$LIPO"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
$as_echo "$LIPO" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_LIPO"; then
  ac_ct_LIPO=$LIPO
  # Extract the first word of "lipo", so it can be a program name with args.
set dummy lipo; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_LIPO"; then
  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_LIPO="lipo"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
if test -n "$ac_ct_LIPO"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
$as_echo "$ac_ct_LIPO" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_LIPO" = x; then
    LIPO=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    LIPO=$ac_ct_LIPO
  fi
else
  LIPO="$ac_cv_prog_LIPO"
fi

    if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
set dummy ${ac_tool_prefix}otool; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_OTOOL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$OTOOL"; then
  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
OTOOL=$ac_cv_prog_OTOOL
if test -n "$OTOOL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
$as_echo "$OTOOL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_OTOOL"; then
  ac_ct_OTOOL=$OTOOL
  # Extract the first word of "otool", so it can be a program name with args.
set dummy otool; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_OTOOL"; then
  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_OTOOL="otool"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
if test -n "$ac_ct_OTOOL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
$as_echo "$ac_ct_OTOOL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_OTOOL" = x; then
    OTOOL=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    OTOOL=$ac_ct_OTOOL
  fi
else
  OTOOL="$ac_cv_prog_OTOOL"
fi

    if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
set dummy ${ac_tool_prefix}otool64; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_OTOOL64+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$OTOOL64"; then
  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
OTOOL64=$ac_cv_prog_OTOOL64
if test -n "$OTOOL64"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
$as_echo "$OTOOL64" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_OTOOL64"; then
  ac_ct_OTOOL64=$OTOOL64
  # Extract the first word of "otool64", so it can be a program name with args.
set dummy otool64; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_OTOOL64"; then
  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_OTOOL64="otool64"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
if test -n "$ac_ct_OTOOL64"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
$as_echo "$ac_ct_OTOOL64" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_OTOOL64" = x; then
    OTOOL64=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    OTOOL64=$ac_ct_OTOOL64
  fi
else
  OTOOL64="$ac_cv_prog_OTOOL64"
fi



























    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
$as_echo_n "checking for -single_module linker flag... " >&6; }
if ${lt_cv_apple_cc_single_mod+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_apple_cc_single_mod=no
      if test -z "${LT_MULTI_MODULE}"; then
	# By default we will add the -single_module flag. You can override
	# by either setting the environment variable LT_MULTI_MODULE
	# non-empty at configure time, or by adding -multi_module to the
	# link flags.
	rm -rf libconftest.dylib*
	echo "int foo(void){return 1;}" > conftest.c
	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
-dynamiclib -Wl,-single_module conftest.c" >&5
	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
        _lt_result=$?
	# If there is a non-empty error log, and "single_module"
	# appears in it, assume the flag caused a linker warning
        if test -s conftest.err && $GREP single_module conftest.err; then
	  cat conftest.err >&5
	# Otherwise, if the output was created with a 0 exit code from
	# the compiler, it worked.
	elif test -f libconftest.dylib && test $_lt_result -eq 0; then
	  lt_cv_apple_cc_single_mod=yes
	else
	  cat conftest.err >&5
	fi
	rm -rf libconftest.dylib*
	rm -f conftest.*
      fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
$as_echo "$lt_cv_apple_cc_single_mod" >&6; }

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
if ${lt_cv_ld_exported_symbols_list+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_ld_exported_symbols_list=no
      save_LDFLAGS=$LDFLAGS
      echo "_main" > conftest.sym
      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  lt_cv_ld_exported_symbols_list=yes
else
  lt_cv_ld_exported_symbols_list=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	LDFLAGS="$save_LDFLAGS"

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
$as_echo_n "checking for -force_load linker flag... " >&6; }
if ${lt_cv_ld_force_load+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_ld_force_load=no
      cat > conftest.c << _LT_EOF
int forced_loaded() { return 2;}
_LT_EOF
      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
      echo "$AR cru libconftest.a conftest.o" >&5
      $AR cru libconftest.a conftest.o 2>&5
      echo "$RANLIB libconftest.a" >&5
      $RANLIB libconftest.a 2>&5
      cat > conftest.c << _LT_EOF
int main() { return 0;}
_LT_EOF
      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
      _lt_result=$?
      if test -s conftest.err && $GREP force_load conftest.err; then
	cat conftest.err >&5
      elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then
	lt_cv_ld_force_load=yes
      else
	cat conftest.err >&5
      fi
        rm -f conftest.err libconftest.a conftest conftest.c
        rm -rf conftest.dSYM

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
$as_echo "$lt_cv_ld_force_load" >&6; }
    case $host_os in
    rhapsody* | darwin1.[012])
      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
    darwin1.*)
      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
    darwin*) # darwin 5.x on
      # if running on 10.5 or later, the deployment target defaults
      # to the OS version, if on x86, and 10.4, the deployment
      # target defaults to 10.4. Don't you love it?
      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
	10.[012]*)
	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
	10.*)
	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
      esac
    ;;
  esac
    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
      _lt_dar_single_mod='$single_module'
    fi
    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
    else
      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
    fi
    if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
      _lt_dsymutil='~$DSYMUTIL $lib || :'
    else
      _lt_dsymutil=
    fi
    ;;
  esac


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
if ${ac_cv_header_stdc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
#include 
#include 
#include 

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_header_stdc=yes
else
  ac_cv_header_stdc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then :
  :
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
#include 
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
		   (('a' <= (c) && (c) <= 'i') \
		     || ('j' <= (c) && (c) <= 'r') \
		     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
	|| toupper (i) != TOUPPER (i))
      return 2;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :

else
  ac_cv_header_stdc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
$as_echo "$ac_cv_header_stdc" >&6; }
if test $ac_cv_header_stdc = yes; then

$as_echo "#define STDC_HEADERS 1" >>confdefs.h

fi

# On IRIX 5.3, sys/types and inttypes.h are conflicting.
for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
		  inttypes.h stdint.h unistd.h
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done


for ac_header in dlfcn.h
do :
  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
"
if test "x$ac_cv_header_dlfcn_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_DLFCN_H 1
_ACEOF

fi

done




func_stripname_cnf ()
{
  case ${2} in
  .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
  *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
  esac
} # func_stripname_cnf





# Set options



        enable_dlopen=no


  enable_win32_dll=no


            # Check whether --enable-shared was given.
if test "${enable_shared+set}" = set; then :
  enableval=$enable_shared; p=${PACKAGE-default}
    case $enableval in
    yes) enable_shared=yes ;;
    no) enable_shared=no ;;
    *)
      enable_shared=no
      # Look at the argument we got.  We use all the common list separators.
      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
      for pkg in $enableval; do
	IFS="$lt_save_ifs"
	if test "X$pkg" = "X$p"; then
	  enable_shared=yes
	fi
      done
      IFS="$lt_save_ifs"
      ;;
    esac
else
  enable_shared=yes
fi









  # Check whether --enable-static was given.
if test "${enable_static+set}" = set; then :
  enableval=$enable_static; p=${PACKAGE-default}
    case $enableval in
    yes) enable_static=yes ;;
    no) enable_static=no ;;
    *)
     enable_static=no
      # Look at the argument we got.  We use all the common list separators.
      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
      for pkg in $enableval; do
	IFS="$lt_save_ifs"
	if test "X$pkg" = "X$p"; then
	  enable_static=yes
	fi
      done
      IFS="$lt_save_ifs"
      ;;
    esac
else
  enable_static=yes
fi










# Check whether --with-pic was given.
if test "${with_pic+set}" = set; then :
  withval=$with_pic; lt_p=${PACKAGE-default}
    case $withval in
    yes|no) pic_mode=$withval ;;
    *)
      pic_mode=default
      # Look at the argument we got.  We use all the common list separators.
      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
      for lt_pkg in $withval; do
	IFS="$lt_save_ifs"
	if test "X$lt_pkg" = "X$lt_p"; then
	  pic_mode=yes
	fi
      done
      IFS="$lt_save_ifs"
      ;;
    esac
else
  pic_mode=default
fi


test -z "$pic_mode" && pic_mode=default







  # Check whether --enable-fast-install was given.
if test "${enable_fast_install+set}" = set; then :
  enableval=$enable_fast_install; p=${PACKAGE-default}
    case $enableval in
    yes) enable_fast_install=yes ;;
    no) enable_fast_install=no ;;
    *)
      enable_fast_install=no
      # Look at the argument we got.  We use all the common list separators.
      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
      for pkg in $enableval; do
	IFS="$lt_save_ifs"
	if test "X$pkg" = "X$p"; then
	  enable_fast_install=yes
	fi
      done
      IFS="$lt_save_ifs"
      ;;
    esac
else
  enable_fast_install=yes
fi











# This can be used to rebuild libtool when needed
LIBTOOL_DEPS="$ltmain"

# Always use our own libtool.
LIBTOOL='$(SHELL) $(top_builddir)/libtool'






























test -z "$LN_S" && LN_S="ln -s"














if test -n "${ZSH_VERSION+set}" ; then
   setopt NO_GLOB_SUBST
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
$as_echo_n "checking for objdir... " >&6; }
if ${lt_cv_objdir+:} false; then :
  $as_echo_n "(cached) " >&6
else
  rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
  lt_cv_objdir=.libs
else
  # MS-DOS does not allow filenames that begin with a dot.
  lt_cv_objdir=_libs
fi
rmdir .libs 2>/dev/null
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
$as_echo "$lt_cv_objdir" >&6; }
objdir=$lt_cv_objdir





cat >>confdefs.h <<_ACEOF
#define LT_OBJDIR "$lt_cv_objdir/"
_ACEOF




case $host_os in
aix3*)
  # AIX sometimes has problems with the GCC collect2 program.  For some
  # reason, if we set the COLLECT_NAMES environment variable, the problems
  # vanish in a puff of smoke.
  if test "X${COLLECT_NAMES+set}" != Xset; then
    COLLECT_NAMES=
    export COLLECT_NAMES
  fi
  ;;
esac

# Global variables:
ofile=libtool
can_build_shared=yes

# All known linkers require a `.a' archive for static linking (except MSVC,
# which needs '.lib').
libext=a

with_gnu_ld="$lt_cv_prog_gnu_ld"

old_CC="$CC"
old_CFLAGS="$CFLAGS"

# Set sane defaults for various variables
test -z "$CC" && CC=cc
test -z "$LTCC" && LTCC=$CC
test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
test -z "$LD" && LD=ld
test -z "$ac_objext" && ac_objext=o

for cc_temp in $compiler""; do
  case $cc_temp in
    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
    \-*) ;;
    *) break;;
  esac
done
cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`


# Only perform the check for file, if the check method requires it
test -z "$MAGIC_CMD" && MAGIC_CMD=file
case $deplibs_check_method in
file_magic*)
  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
if ${lt_cv_path_MAGIC_CMD+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $MAGIC_CMD in
[\\/*] |  ?:[\\/]*)
  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
  ;;
*)
  lt_save_MAGIC_CMD="$MAGIC_CMD"
  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
  for ac_dir in $ac_dummy; do
    IFS="$lt_save_ifs"
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/${ac_tool_prefix}file; then
      lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file"
      if test -n "$file_magic_test_file"; then
	case $deplibs_check_method in
	"file_magic "*)
	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
	    $EGREP "$file_magic_regex" > /dev/null; then
	    :
	  else
	    cat <<_LT_EOF 1>&2

*** Warning: the command libtool uses to detect shared libraries,
*** $file_magic_cmd, produces output that libtool cannot recognize.
*** The result is that libtool may fail to recognize shared libraries
*** as such.  This will affect the creation of libtool libraries that
*** depend on shared libraries, but programs linked with such libtool
*** libraries will work regardless of this problem.  Nevertheless, you
*** may want to report the problem to your system manager and/or to
*** bug-libtool@gnu.org

_LT_EOF
	  fi ;;
	esac
      fi
      break
    fi
  done
  IFS="$lt_save_ifs"
  MAGIC_CMD="$lt_save_MAGIC_CMD"
  ;;
esac
fi

MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
if test -n "$MAGIC_CMD"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
$as_echo "$MAGIC_CMD" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi





if test -z "$lt_cv_path_MAGIC_CMD"; then
  if test -n "$ac_tool_prefix"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
$as_echo_n "checking for file... " >&6; }
if ${lt_cv_path_MAGIC_CMD+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $MAGIC_CMD in
[\\/*] |  ?:[\\/]*)
  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
  ;;
*)
  lt_save_MAGIC_CMD="$MAGIC_CMD"
  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
  for ac_dir in $ac_dummy; do
    IFS="$lt_save_ifs"
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/file; then
      lt_cv_path_MAGIC_CMD="$ac_dir/file"
      if test -n "$file_magic_test_file"; then
	case $deplibs_check_method in
	"file_magic "*)
	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
	    $EGREP "$file_magic_regex" > /dev/null; then
	    :
	  else
	    cat <<_LT_EOF 1>&2

*** Warning: the command libtool uses to detect shared libraries,
*** $file_magic_cmd, produces output that libtool cannot recognize.
*** The result is that libtool may fail to recognize shared libraries
*** as such.  This will affect the creation of libtool libraries that
*** depend on shared libraries, but programs linked with such libtool
*** libraries will work regardless of this problem.  Nevertheless, you
*** may want to report the problem to your system manager and/or to
*** bug-libtool@gnu.org

_LT_EOF
	  fi ;;
	esac
      fi
      break
    fi
  done
  IFS="$lt_save_ifs"
  MAGIC_CMD="$lt_save_MAGIC_CMD"
  ;;
esac
fi

MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
if test -n "$MAGIC_CMD"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
$as_echo "$MAGIC_CMD" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  else
    MAGIC_CMD=:
  fi
fi

  fi
  ;;
esac

# Use C for the default configuration in the libtool script

lt_save_CC="$CC"
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


# Source file extension for C test sources.
ac_ext=c

# Object file extension for compiled C test sources.
objext=o
objext=$objext

# Code to be used in simple compile tests
lt_simple_compile_test_code="int some_variable = 0;"

# Code to be used in simple link tests
lt_simple_link_test_code='int main(){return(0);}'







# If no C compiler was specified, use CC.
LTCC=${LTCC-"$CC"}

# If no C compiler flags were specified, use CFLAGS.
LTCFLAGS=${LTCFLAGS-"$CFLAGS"}

# Allow CC to be a program name with arguments.
compiler=$CC

# Save the default compiler, since it gets overwritten when the other
# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
compiler_DEFAULT=$CC

# save warnings/boilerplate of simple test code
ac_outfile=conftest.$ac_objext
echo "$lt_simple_compile_test_code" >conftest.$ac_ext
eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
_lt_compiler_boilerplate=`cat conftest.err`
$RM conftest*

ac_outfile=conftest.$ac_objext
echo "$lt_simple_link_test_code" >conftest.$ac_ext
eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
_lt_linker_boilerplate=`cat conftest.err`
$RM -r conftest*


## CAVEAT EMPTOR:
## There is no encapsulation within the following macros, do not change
## the running order or otherwise move them around unless you know exactly
## what you are doing...
if test -n "$compiler"; then

lt_prog_compiler_no_builtin_flag=

if test "$GCC" = yes; then
  case $cc_basename in
  nvcc*)
    lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
  *)
    lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
  esac

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_rtti_exceptions=no
   ac_outfile=conftest.$ac_objext
   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
   lt_compiler_flag="-fno-rtti -fno-exceptions"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   # The option is referenced via a variable to avoid confusing sed.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_rtti_exceptions=yes
     fi
   fi
   $RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }

if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
else
    :
fi

fi






  lt_prog_compiler_wl=
lt_prog_compiler_pic=
lt_prog_compiler_static=


  if test "$GCC" = yes; then
    lt_prog_compiler_wl='-Wl,'
    lt_prog_compiler_static='-static'

    case $host_os in
      aix*)
      # All AIX code is PIC.
      if test "$host_cpu" = ia64; then
	# AIX 5 now supports IA64 processor
	lt_prog_compiler_static='-Bstatic'
      fi
      ;;

    amigaos*)
      case $host_cpu in
      powerpc)
            # see comment about AmigaOS4 .so support
            lt_prog_compiler_pic='-fPIC'
        ;;
      m68k)
            # FIXME: we need at least 68020 code to build shared libraries, but
            # adding the `-m68020' flag to GCC prevents building anything better,
            # like `-m68040'.
            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
        ;;
      esac
      ;;

    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
      # PIC is the default for these OSes.
      ;;

    mingw* | cygwin* | pw32* | os2* | cegcc*)
      # This hack is so that the source file can tell whether it is being
      # built for inclusion in a dll (and should export symbols for example).
      # Although the cygwin gcc ignores -fPIC, still need this for old-style
      # (--disable-auto-import) libraries
      lt_prog_compiler_pic='-DDLL_EXPORT'
      ;;

    darwin* | rhapsody*)
      # PIC is the default on this platform
      # Common symbols not allowed in MH_DYLIB files
      lt_prog_compiler_pic='-fno-common'
      ;;

    haiku*)
      # PIC is the default for Haiku.
      # The "-static" flag exists, but is broken.
      lt_prog_compiler_static=
      ;;

    hpux*)
      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
      # sets the default TLS model and affects inlining.
      case $host_cpu in
      hppa*64*)
	# +Z the default
	;;
      *)
	lt_prog_compiler_pic='-fPIC'
	;;
      esac
      ;;

    interix[3-9]*)
      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
      # Instead, we relocate shared libraries at runtime.
      ;;

    msdosdjgpp*)
      # Just because we use GCC doesn't mean we suddenly get shared libraries
      # on systems that don't support them.
      lt_prog_compiler_can_build_shared=no
      enable_shared=no
      ;;

    *nto* | *qnx*)
      # QNX uses GNU C++, but need to define -shared option too, otherwise
      # it will coredump.
      lt_prog_compiler_pic='-fPIC -shared'
      ;;

    sysv4*MP*)
      if test -d /usr/nec; then
	lt_prog_compiler_pic=-Kconform_pic
      fi
      ;;

    *)
      lt_prog_compiler_pic='-fPIC'
      ;;
    esac

    case $cc_basename in
    nvcc*) # Cuda Compiler Driver 2.2
      lt_prog_compiler_wl='-Xlinker '
      if test -n "$lt_prog_compiler_pic"; then
        lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
      fi
      ;;
    esac
  else
    # PORTME Check for flag to pass linker flags through the system compiler.
    case $host_os in
    aix*)
      lt_prog_compiler_wl='-Wl,'
      if test "$host_cpu" = ia64; then
	# AIX 5 now supports IA64 processor
	lt_prog_compiler_static='-Bstatic'
      else
	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
      fi
      ;;

    mingw* | cygwin* | pw32* | os2* | cegcc*)
      # This hack is so that the source file can tell whether it is being
      # built for inclusion in a dll (and should export symbols for example).
      lt_prog_compiler_pic='-DDLL_EXPORT'
      ;;

    hpux9* | hpux10* | hpux11*)
      lt_prog_compiler_wl='-Wl,'
      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
      # not for PA HP-UX.
      case $host_cpu in
      hppa*64*|ia64*)
	# +Z the default
	;;
      *)
	lt_prog_compiler_pic='+Z'
	;;
      esac
      # Is there a better lt_prog_compiler_static that works with the bundled CC?
      lt_prog_compiler_static='${wl}-a ${wl}archive'
      ;;

    irix5* | irix6* | nonstopux*)
      lt_prog_compiler_wl='-Wl,'
      # PIC (with -KPIC) is the default.
      lt_prog_compiler_static='-non_shared'
      ;;

    linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
      case $cc_basename in
      # old Intel for x86_64 which still supported -KPIC.
      ecc*)
	lt_prog_compiler_wl='-Wl,'
	lt_prog_compiler_pic='-KPIC'
	lt_prog_compiler_static='-static'
        ;;
      # icc used to be incompatible with GCC.
      # ICC 10 doesn't accept -KPIC any more.
      icc* | ifort*)
	lt_prog_compiler_wl='-Wl,'
	lt_prog_compiler_pic='-fPIC'
	lt_prog_compiler_static='-static'
        ;;
      # Lahey Fortran 8.1.
      lf95*)
	lt_prog_compiler_wl='-Wl,'
	lt_prog_compiler_pic='--shared'
	lt_prog_compiler_static='--static'
	;;
      nagfor*)
	# NAG Fortran compiler
	lt_prog_compiler_wl='-Wl,-Wl,,'
	lt_prog_compiler_pic='-PIC'
	lt_prog_compiler_static='-Bstatic'
	;;
      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
        # Portland Group compilers (*not* the Pentium gcc compiler,
	# which looks to be a dead project)
	lt_prog_compiler_wl='-Wl,'
	lt_prog_compiler_pic='-fpic'
	lt_prog_compiler_static='-Bstatic'
        ;;
      ccc*)
        lt_prog_compiler_wl='-Wl,'
        # All Alpha code is PIC.
        lt_prog_compiler_static='-non_shared'
        ;;
      xl* | bgxl* | bgf* | mpixl*)
	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
	lt_prog_compiler_wl='-Wl,'
	lt_prog_compiler_pic='-qpic'
	lt_prog_compiler_static='-qstaticlink'
	;;
      *)
	case `$CC -V 2>&1 | sed 5q` in
	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
	  lt_prog_compiler_pic='-KPIC'
	  lt_prog_compiler_static='-Bstatic'
	  lt_prog_compiler_wl=''
	  ;;
	*Sun\ F* | *Sun*Fortran*)
	  lt_prog_compiler_pic='-KPIC'
	  lt_prog_compiler_static='-Bstatic'
	  lt_prog_compiler_wl='-Qoption ld '
	  ;;
	*Sun\ C*)
	  # Sun C 5.9
	  lt_prog_compiler_pic='-KPIC'
	  lt_prog_compiler_static='-Bstatic'
	  lt_prog_compiler_wl='-Wl,'
	  ;;
        *Intel*\ [CF]*Compiler*)
	  lt_prog_compiler_wl='-Wl,'
	  lt_prog_compiler_pic='-fPIC'
	  lt_prog_compiler_static='-static'
	  ;;
	*Portland\ Group*)
	  lt_prog_compiler_wl='-Wl,'
	  lt_prog_compiler_pic='-fpic'
	  lt_prog_compiler_static='-Bstatic'
	  ;;
	esac
	;;
      esac
      ;;

    newsos6)
      lt_prog_compiler_pic='-KPIC'
      lt_prog_compiler_static='-Bstatic'
      ;;

    *nto* | *qnx*)
      # QNX uses GNU C++, but need to define -shared option too, otherwise
      # it will coredump.
      lt_prog_compiler_pic='-fPIC -shared'
      ;;

    osf3* | osf4* | osf5*)
      lt_prog_compiler_wl='-Wl,'
      # All OSF/1 code is PIC.
      lt_prog_compiler_static='-non_shared'
      ;;

    rdos*)
      lt_prog_compiler_static='-non_shared'
      ;;

    solaris*)
      lt_prog_compiler_pic='-KPIC'
      lt_prog_compiler_static='-Bstatic'
      case $cc_basename in
      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
	lt_prog_compiler_wl='-Qoption ld ';;
      *)
	lt_prog_compiler_wl='-Wl,';;
      esac
      ;;

    sunos4*)
      lt_prog_compiler_wl='-Qoption ld '
      lt_prog_compiler_pic='-PIC'
      lt_prog_compiler_static='-Bstatic'
      ;;

    sysv4 | sysv4.2uw2* | sysv4.3*)
      lt_prog_compiler_wl='-Wl,'
      lt_prog_compiler_pic='-KPIC'
      lt_prog_compiler_static='-Bstatic'
      ;;

    sysv4*MP*)
      if test -d /usr/nec ;then
	lt_prog_compiler_pic='-Kconform_pic'
	lt_prog_compiler_static='-Bstatic'
      fi
      ;;

    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
      lt_prog_compiler_wl='-Wl,'
      lt_prog_compiler_pic='-KPIC'
      lt_prog_compiler_static='-Bstatic'
      ;;

    unicos*)
      lt_prog_compiler_wl='-Wl,'
      lt_prog_compiler_can_build_shared=no
      ;;

    uts4*)
      lt_prog_compiler_pic='-pic'
      lt_prog_compiler_static='-Bstatic'
      ;;

    *)
      lt_prog_compiler_can_build_shared=no
      ;;
    esac
  fi

case $host_os in
  # For platforms which do not support PIC, -DPIC is meaningless:
  *djgpp*)
    lt_prog_compiler_pic=
    ;;
  *)
    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
    ;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
if ${lt_cv_prog_compiler_pic+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
$as_echo "$lt_cv_prog_compiler_pic" >&6; }
lt_prog_compiler_pic=$lt_cv_prog_compiler_pic

#
# Check to make sure the PIC flag actually works.
#
if test -n "$lt_prog_compiler_pic"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
if ${lt_cv_prog_compiler_pic_works+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_pic_works=no
   ac_outfile=conftest.$ac_objext
   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   # The option is referenced via a variable to avoid confusing sed.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_pic_works=yes
     fi
   fi
   $RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }

if test x"$lt_cv_prog_compiler_pic_works" = xyes; then
    case $lt_prog_compiler_pic in
     "" | " "*) ;;
     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
     esac
else
    lt_prog_compiler_pic=
     lt_prog_compiler_can_build_shared=no
fi

fi











#
# Check to make sure the static flag actually works.
#
wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
if ${lt_cv_prog_compiler_static_works+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_static_works=no
   save_LDFLAGS="$LDFLAGS"
   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
   echo "$lt_simple_link_test_code" > conftest.$ac_ext
   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
     # The linker can only warn and ignore the option if not recognized
     # So say no if there are warnings
     if test -s conftest.err; then
       # Append any errors to the config.log.
       cat conftest.err 1>&5
       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
       if diff conftest.exp conftest.er2 >/dev/null; then
         lt_cv_prog_compiler_static_works=yes
       fi
     else
       lt_cv_prog_compiler_static_works=yes
     fi
   fi
   $RM -r conftest*
   LDFLAGS="$save_LDFLAGS"

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
$as_echo "$lt_cv_prog_compiler_static_works" >&6; }

if test x"$lt_cv_prog_compiler_static_works" = xyes; then
    :
else
    lt_prog_compiler_static=
fi







  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
if ${lt_cv_prog_compiler_c_o+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_c_o=no
   $RM -r conftest 2>/dev/null
   mkdir conftest
   cd conftest
   mkdir out
   echo "$lt_simple_compile_test_code" > conftest.$ac_ext

   lt_compiler_flag="-o out/conftest2.$ac_objext"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_c_o=yes
     fi
   fi
   chmod u+w . 2>&5
   $RM conftest*
   # SGI C++ compiler will create directory out/ii_files/ for
   # template instantiation
   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
   $RM out/* && rmdir out
   cd ..
   $RM -r conftest
   $RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
$as_echo "$lt_cv_prog_compiler_c_o" >&6; }






  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
if ${lt_cv_prog_compiler_c_o+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_c_o=no
   $RM -r conftest 2>/dev/null
   mkdir conftest
   cd conftest
   mkdir out
   echo "$lt_simple_compile_test_code" > conftest.$ac_ext

   lt_compiler_flag="-o out/conftest2.$ac_objext"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_c_o=yes
     fi
   fi
   chmod u+w . 2>&5
   $RM conftest*
   # SGI C++ compiler will create directory out/ii_files/ for
   # template instantiation
   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
   $RM out/* && rmdir out
   cd ..
   $RM -r conftest
   $RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
$as_echo "$lt_cv_prog_compiler_c_o" >&6; }




hard_links="nottested"
if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then
  # do not overwrite the value of need_locks provided by the user
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
$as_echo_n "checking if we can lock with hard links... " >&6; }
  hard_links=yes
  $RM conftest*
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  touch conftest.a
  ln conftest.a conftest.b 2>&5 || hard_links=no
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
$as_echo "$hard_links" >&6; }
  if test "$hard_links" = no; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
    need_locks=warn
  fi
else
  need_locks=no
fi






  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }

  runpath_var=
  allow_undefined_flag=
  always_export_symbols=no
  archive_cmds=
  archive_expsym_cmds=
  compiler_needs_object=no
  enable_shared_with_static_runtimes=no
  export_dynamic_flag_spec=
  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
  hardcode_automatic=no
  hardcode_direct=no
  hardcode_direct_absolute=no
  hardcode_libdir_flag_spec=
  hardcode_libdir_separator=
  hardcode_minus_L=no
  hardcode_shlibpath_var=unsupported
  inherit_rpath=no
  link_all_deplibs=unknown
  module_cmds=
  module_expsym_cmds=
  old_archive_from_new_cmds=
  old_archive_from_expsyms_cmds=
  thread_safe_flag_spec=
  whole_archive_flag_spec=
  # include_expsyms should be a list of space-separated symbols to be *always*
  # included in the symbol list
  include_expsyms=
  # exclude_expsyms can be an extended regexp of symbols to exclude
  # it will be wrapped by ` (' and `)$', so one must not match beginning or
  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
  # as well as any symbol that contains `d'.
  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
  # platforms (ab)use it in PIC code, but their linkers get confused if
  # the symbol is explicitly referenced.  Since portable code cannot
  # rely on this symbol name, it's probably fine to never include it in
  # preloaded symbol tables.
  # Exclude shared library initialization/finalization symbols.
  extract_expsyms_cmds=

  case $host_os in
  cygwin* | mingw* | pw32* | cegcc*)
    # FIXME: the MSVC++ port hasn't been tested in a loooong time
    # When not using gcc, we currently assume that we are using
    # Microsoft Visual C++.
    if test "$GCC" != yes; then
      with_gnu_ld=no
    fi
    ;;
  interix*)
    # we just hope/assume this is gcc and not c89 (= MSVC++)
    with_gnu_ld=yes
    ;;
  openbsd*)
    with_gnu_ld=no
    ;;
  linux* | k*bsd*-gnu | gnu*)
    link_all_deplibs=no
    ;;
  esac

  ld_shlibs=yes

  # On some targets, GNU ld is compatible enough with the native linker
  # that we're better off using the native interface for both.
  lt_use_gnu_ld_interface=no
  if test "$with_gnu_ld" = yes; then
    case $host_os in
      aix*)
	# The AIX port of GNU ld has always aspired to compatibility
	# with the native linker.  However, as the warning in the GNU ld
	# block says, versions before 2.19.5* couldn't really create working
	# shared libraries, regardless of the interface used.
	case `$LD -v 2>&1` in
	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
	  *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
	  *\ \(GNU\ Binutils\)\ [3-9]*) ;;
	  *)
	    lt_use_gnu_ld_interface=yes
	    ;;
	esac
	;;
      *)
	lt_use_gnu_ld_interface=yes
	;;
    esac
  fi

  if test "$lt_use_gnu_ld_interface" = yes; then
    # If archive_cmds runs LD, not CC, wlarc should be empty
    wlarc='${wl}'

    # Set some defaults for GNU ld with shared library support. These
    # are reset later if shared libraries are not supported. Putting them
    # here allows them to be overridden if necessary.
    runpath_var=LD_RUN_PATH
    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
    export_dynamic_flag_spec='${wl}--export-dynamic'
    # ancient GNU ld didn't support --whole-archive et. al.
    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
    else
      whole_archive_flag_spec=
    fi
    supports_anon_versioning=no
    case `$LD -v 2>&1` in
      *GNU\ gold*) supports_anon_versioning=yes ;;
      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
      *\ 2.11.*) ;; # other 2.11 versions
      *) supports_anon_versioning=yes ;;
    esac

    # See if GNU ld supports shared libraries.
    case $host_os in
    aix[3-9]*)
      # On AIX/PPC, the GNU linker is very broken
      if test "$host_cpu" != ia64; then
	ld_shlibs=no
	cat <<_LT_EOF 1>&2

*** Warning: the GNU linker, at least up to release 2.19, is reported
*** to be unable to reliably create shared libraries on AIX.
*** Therefore, libtool is disabling shared libraries support.  If you
*** really care for shared libraries, you may want to install binutils
*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
*** You will then need to restart the configuration process.

_LT_EOF
      fi
      ;;

    amigaos*)
      case $host_cpu in
      powerpc)
            # see comment about AmigaOS4 .so support
            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
            archive_expsym_cmds=''
        ;;
      m68k)
            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
            hardcode_libdir_flag_spec='-L$libdir'
            hardcode_minus_L=yes
        ;;
      esac
      ;;

    beos*)
      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
	allow_undefined_flag=unsupported
	# Joseph Beckenbach  says some releases of gcc
	# support --undefined.  This deserves some investigation.  FIXME
	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      else
	ld_shlibs=no
      fi
      ;;

    cygwin* | mingw* | pw32* | cegcc*)
      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
      # as there is no search path for DLLs.
      hardcode_libdir_flag_spec='-L$libdir'
      export_dynamic_flag_spec='${wl}--export-all-symbols'
      allow_undefined_flag=unsupported
      always_export_symbols=no
      enable_shared_with_static_runtimes=yes
      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
      exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'

      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
	# If the export-symbols file already is a .def file (1st line
	# is EXPORTS), use it as is; otherwise, prepend...
	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
	  cp $export_symbols $output_objdir/$soname.def;
	else
	  echo EXPORTS > $output_objdir/$soname.def;
	  cat $export_symbols >> $output_objdir/$soname.def;
	fi~
	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
      else
	ld_shlibs=no
      fi
      ;;

    haiku*)
      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      link_all_deplibs=yes
      ;;

    interix[3-9]*)
      hardcode_direct=no
      hardcode_shlibpath_var=no
      hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
      export_dynamic_flag_spec='${wl}-E'
      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
      # Instead, shared libraries are loaded at an image base (0x10000000 by
      # default) and relocated if they conflict, which is a slow very memory
      # consuming and fragmenting process.  To avoid this, we pick a random,
      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
      archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
      ;;

    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
      tmp_diet=no
      if test "$host_os" = linux-dietlibc; then
	case $cc_basename in
	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
	esac
      fi
      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
	 && test "$tmp_diet" = no
      then
	tmp_addflag=' $pic_flag'
	tmp_sharedflag='-shared'
	case $cc_basename,$host_cpu in
        pgcc*)				# Portland Group C compiler
	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
	  tmp_addflag=' $pic_flag'
	  ;;
	pgf77* | pgf90* | pgf95* | pgfortran*)
					# Portland Group f77 and f90 compilers
	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
	  tmp_addflag=' $pic_flag -Mnomain' ;;
	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
	  tmp_addflag=' -i_dynamic' ;;
	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
	  tmp_addflag=' -i_dynamic -nofor_main' ;;
	ifc* | ifort*)			# Intel Fortran compiler
	  tmp_addflag=' -nofor_main' ;;
	lf95*)				# Lahey Fortran 8.1
	  whole_archive_flag_spec=
	  tmp_sharedflag='--shared' ;;
	xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
	  tmp_sharedflag='-qmkshrobj'
	  tmp_addflag= ;;
	nvcc*)	# Cuda Compiler Driver 2.2
	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
	  compiler_needs_object=yes
	  ;;
	esac
	case `$CC -V 2>&1 | sed 5q` in
	*Sun\ C*)			# Sun C 5.9
	  whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
	  compiler_needs_object=yes
	  tmp_sharedflag='-G' ;;
	*Sun\ F*)			# Sun Fortran 8.3
	  tmp_sharedflag='-G' ;;
	esac
	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'

        if test "x$supports_anon_versioning" = xyes; then
          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
	    echo "local: *; };" >> $output_objdir/$libname.ver~
	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
        fi

	case $cc_basename in
	xlf* | bgf* | bgxlf* | mpixlf*)
	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
	  hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
	  archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
	  if test "x$supports_anon_versioning" = xyes; then
	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
	      echo "local: *; };" >> $output_objdir/$libname.ver~
	      $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
	  fi
	  ;;
	esac
      else
        ld_shlibs=no
      fi
      ;;

    netbsd* | netbsdelf*-gnu)
      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
	wlarc=
      else
	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
      fi
      ;;

    solaris*)
      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
	ld_shlibs=no
	cat <<_LT_EOF 1>&2

*** Warning: The releases 2.8.* of the GNU linker cannot reliably
*** create shared libraries on Solaris systems.  Therefore, libtool
*** is disabling shared libraries support.  We urge you to upgrade GNU
*** binutils to release 2.9.1 or newer.  Another option is to modify
*** your PATH or compiler configuration so that the native linker is
*** used, and then restart.

_LT_EOF
      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
      else
	ld_shlibs=no
      fi
      ;;

    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
      case `$LD -v 2>&1` in
        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
	ld_shlibs=no
	cat <<_LT_EOF 1>&2

*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
*** reliably create shared libraries on SCO systems.  Therefore, libtool
*** is disabling shared libraries support.  We urge you to upgrade GNU
*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
*** your PATH or compiler configuration so that the native linker is
*** used, and then restart.

_LT_EOF
	;;
	*)
	  # For security reasons, it is highly recommended that you always
	  # use absolute paths for naming shared libraries, and exclude the
	  # DT_RUNPATH tag from executables and libraries.  But doing so
	  # requires that you compile everything twice, which is a pain.
	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
	    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
	  else
	    ld_shlibs=no
	  fi
	;;
      esac
      ;;

    sunos4*)
      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
      wlarc=
      hardcode_direct=yes
      hardcode_shlibpath_var=no
      ;;

    *)
      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
      else
	ld_shlibs=no
      fi
      ;;
    esac

    if test "$ld_shlibs" = no; then
      runpath_var=
      hardcode_libdir_flag_spec=
      export_dynamic_flag_spec=
      whole_archive_flag_spec=
    fi
  else
    # PORTME fill in a description of your system's linker (not GNU ld)
    case $host_os in
    aix3*)
      allow_undefined_flag=unsupported
      always_export_symbols=yes
      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
      # Note: this linker hardcodes the directories in LIBPATH if there
      # are no directories specified by -L.
      hardcode_minus_L=yes
      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
	# Neither direct hardcoding nor static linking is supported with a
	# broken collect2.
	hardcode_direct=unsupported
      fi
      ;;

    aix[4-9]*)
      if test "$host_cpu" = ia64; then
	# On IA64, the linker does run time linking by default, so we don't
	# have to do anything special.
	aix_use_runtimelinking=no
	exp_sym_flag='-Bexport'
	no_entry_flag=""
      else
	# If we're using GNU nm, then we don't want the "-C" option.
	# -C means demangle to AIX nm, but means don't demangle with GNU nm
	# Also, AIX nm treats weak defined symbols like other global
	# defined symbols, whereas GNU nm marks them as "W".
	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
	else
	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
	fi
	aix_use_runtimelinking=no

	# Test if we are trying to use run time linking or normal
	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
	# need to do runtime linking.
	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
	  for ld_flag in $LDFLAGS; do
	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
	    aix_use_runtimelinking=yes
	    break
	  fi
	  done
	  ;;
	esac

	exp_sym_flag='-bexport'
	no_entry_flag='-bnoentry'
      fi

      # When large executables or shared objects are built, AIX ld can
      # have problems creating the table of contents.  If linking a library
      # or program results in "error TOC overflow" add -mminimal-toc to
      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.

      archive_cmds=''
      hardcode_direct=yes
      hardcode_direct_absolute=yes
      hardcode_libdir_separator=':'
      link_all_deplibs=yes
      file_list_spec='${wl}-f,'

      if test "$GCC" = yes; then
	case $host_os in aix4.[012]|aix4.[012].*)
	# We only want to do this on AIX 4.2 and lower, the check
	# below for broken collect2 doesn't work under 4.3+
	  collect2name=`${CC} -print-prog-name=collect2`
	  if test -f "$collect2name" &&
	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
	  then
	  # We have reworked collect2
	  :
	  else
	  # We have old collect2
	  hardcode_direct=unsupported
	  # It fails to find uninstalled libraries when the uninstalled
	  # path is not listed in the libpath.  Setting hardcode_minus_L
	  # to unsupported forces relinking
	  hardcode_minus_L=yes
	  hardcode_libdir_flag_spec='-L$libdir'
	  hardcode_libdir_separator=
	  fi
	  ;;
	esac
	shared_flag='-shared'
	if test "$aix_use_runtimelinking" = yes; then
	  shared_flag="$shared_flag "'${wl}-G'
	fi
	link_all_deplibs=no
      else
	# not using gcc
	if test "$host_cpu" = ia64; then
	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
	# chokes on -Wl,-G. The following line is correct:
	  shared_flag='-G'
	else
	  if test "$aix_use_runtimelinking" = yes; then
	    shared_flag='${wl}-G'
	  else
	    shared_flag='${wl}-bM:SRE'
	  fi
	fi
      fi

      export_dynamic_flag_spec='${wl}-bexpall'
      # It seems that -bexpall does not export symbols beginning with
      # underscore (_), so it is better to generate a list of symbols to export.
      always_export_symbols=yes
      if test "$aix_use_runtimelinking" = yes; then
	# Warning - without using the other runtime loading flags (-brtl),
	# -berok will link without error, but may produce a broken library.
	allow_undefined_flag='-berok'
        # Determine the default libpath from the value encoded in an
        # empty executable.
        if test "${lt_cv_aix_libpath+set}" = set; then
  aix_libpath=$lt_cv_aix_libpath
else
  if ${lt_cv_aix_libpath_+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

  lt_aix_libpath_sed='
      /Import File Strings/,/^$/ {
	  /^0/ {
	      s/^0  *\([^ ]*\) *$/\1/
	      p
	  }
      }'
  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  # Check for a 64-bit object if we didn't find anything.
  if test -z "$lt_cv_aix_libpath_"; then
    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  fi
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
  if test -z "$lt_cv_aix_libpath_"; then
    lt_cv_aix_libpath_="/usr/lib:/lib"
  fi

fi

  aix_libpath=$lt_cv_aix_libpath_
fi

        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
      else
	if test "$host_cpu" = ia64; then
	  hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
	  allow_undefined_flag="-z nodefs"
	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
	else
	 # Determine the default libpath from the value encoded in an
	 # empty executable.
	 if test "${lt_cv_aix_libpath+set}" = set; then
  aix_libpath=$lt_cv_aix_libpath
else
  if ${lt_cv_aix_libpath_+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

  lt_aix_libpath_sed='
      /Import File Strings/,/^$/ {
	  /^0/ {
	      s/^0  *\([^ ]*\) *$/\1/
	      p
	  }
      }'
  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  # Check for a 64-bit object if we didn't find anything.
  if test -z "$lt_cv_aix_libpath_"; then
    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  fi
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
  if test -z "$lt_cv_aix_libpath_"; then
    lt_cv_aix_libpath_="/usr/lib:/lib"
  fi

fi

  aix_libpath=$lt_cv_aix_libpath_
fi

	 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
	  # Warning - without using the other run time loading flags,
	  # -berok will link without error, but may produce a broken library.
	  no_undefined_flag=' ${wl}-bernotok'
	  allow_undefined_flag=' ${wl}-berok'
	  if test "$with_gnu_ld" = yes; then
	    # We only use this code for GNU lds that support --whole-archive.
	    whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
	  else
	    # Exported symbols can be pulled into shared objects from archives
	    whole_archive_flag_spec='$convenience'
	  fi
	  archive_cmds_need_lc=yes
	  # This is similar to how AIX traditionally builds its shared libraries.
	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
	fi
      fi
      ;;

    amigaos*)
      case $host_cpu in
      powerpc)
            # see comment about AmigaOS4 .so support
            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
            archive_expsym_cmds=''
        ;;
      m68k)
            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
            hardcode_libdir_flag_spec='-L$libdir'
            hardcode_minus_L=yes
        ;;
      esac
      ;;

    bsdi[45]*)
      export_dynamic_flag_spec=-rdynamic
      ;;

    cygwin* | mingw* | pw32* | cegcc*)
      # When not using gcc, we currently assume that we are using
      # Microsoft Visual C++.
      # hardcode_libdir_flag_spec is actually meaningless, as there is
      # no search path for DLLs.
      case $cc_basename in
      cl*)
	# Native MSVC
	hardcode_libdir_flag_spec=' '
	allow_undefined_flag=unsupported
	always_export_symbols=yes
	file_list_spec='@'
	# Tell ltmain to make .lib files, not .a files.
	libext=lib
	# Tell ltmain to make .dll files, not .so files.
	shrext_cmds=".dll"
	# FIXME: Setting linknames here is a bad hack.
	archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
	    sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
	  else
	    sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
	  fi~
	  $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
	  linknames='
	# The linker will not automatically build a static lib if we build a DLL.
	# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
	enable_shared_with_static_runtimes=yes
	exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
	export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
	# Don't use ranlib
	old_postinstall_cmds='chmod 644 $oldlib'
	postlink_cmds='lt_outputfile="@OUTPUT@"~
	  lt_tool_outputfile="@TOOL_OUTPUT@"~
	  case $lt_outputfile in
	    *.exe|*.EXE) ;;
	    *)
	      lt_outputfile="$lt_outputfile.exe"
	      lt_tool_outputfile="$lt_tool_outputfile.exe"
	      ;;
	  esac~
	  if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
	    $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
	    $RM "$lt_outputfile.manifest";
	  fi'
	;;
      *)
	# Assume MSVC wrapper
	hardcode_libdir_flag_spec=' '
	allow_undefined_flag=unsupported
	# Tell ltmain to make .lib files, not .a files.
	libext=lib
	# Tell ltmain to make .dll files, not .so files.
	shrext_cmds=".dll"
	# FIXME: Setting linknames here is a bad hack.
	archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
	# The linker will automatically build a .lib file if we build a DLL.
	old_archive_from_new_cmds='true'
	# FIXME: Should let the user specify the lib program.
	old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
	enable_shared_with_static_runtimes=yes
	;;
      esac
      ;;

    darwin* | rhapsody*)


  archive_cmds_need_lc=no
  hardcode_direct=no
  hardcode_automatic=yes
  hardcode_shlibpath_var=unsupported
  if test "$lt_cv_ld_force_load" = "yes"; then
    whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'

  else
    whole_archive_flag_spec=''
  fi
  link_all_deplibs=yes
  allow_undefined_flag="$_lt_dar_allow_undefined"
  case $cc_basename in
     ifort*) _lt_dar_can_shared=yes ;;
     *) _lt_dar_can_shared=$GCC ;;
  esac
  if test "$_lt_dar_can_shared" = "yes"; then
    output_verbose_link_cmd=func_echo_all
    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
    archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
    module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"

  else
  ld_shlibs=no
  fi

      ;;

    dgux*)
      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_libdir_flag_spec='-L$libdir'
      hardcode_shlibpath_var=no
      ;;

    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
    # support.  Future versions do this automatically, but an explicit c++rt0.o
    # does not break anything, and helps significantly (at the cost of a little
    # extra space).
    freebsd2.2*)
      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
      hardcode_libdir_flag_spec='-R$libdir'
      hardcode_direct=yes
      hardcode_shlibpath_var=no
      ;;

    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
    freebsd2.*)
      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
      hardcode_direct=yes
      hardcode_minus_L=yes
      hardcode_shlibpath_var=no
      ;;

    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
    freebsd* | dragonfly*)
      archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
      hardcode_libdir_flag_spec='-R$libdir'
      hardcode_direct=yes
      hardcode_shlibpath_var=no
      ;;

    hpux9*)
      if test "$GCC" = yes; then
	archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
      else
	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
      fi
      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
      hardcode_libdir_separator=:
      hardcode_direct=yes

      # hardcode_minus_L: Not really in the search PATH,
      # but as the default location of the library.
      hardcode_minus_L=yes
      export_dynamic_flag_spec='${wl}-E'
      ;;

    hpux10*)
      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
	archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
      else
	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
      fi
      if test "$with_gnu_ld" = no; then
	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
	hardcode_libdir_separator=:
	hardcode_direct=yes
	hardcode_direct_absolute=yes
	export_dynamic_flag_spec='${wl}-E'
	# hardcode_minus_L: Not really in the search PATH,
	# but as the default location of the library.
	hardcode_minus_L=yes
      fi
      ;;

    hpux11*)
      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
	case $host_cpu in
	hppa*64*)
	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	ia64*)
	  archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	*)
	  archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	esac
      else
	case $host_cpu in
	hppa*64*)
	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	ia64*)
	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	*)

	  # Older versions of the 11.00 compiler do not understand -b yet
	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
$as_echo_n "checking if $CC understands -b... " >&6; }
if ${lt_cv_prog_compiler__b+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler__b=no
   save_LDFLAGS="$LDFLAGS"
   LDFLAGS="$LDFLAGS -b"
   echo "$lt_simple_link_test_code" > conftest.$ac_ext
   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
     # The linker can only warn and ignore the option if not recognized
     # So say no if there are warnings
     if test -s conftest.err; then
       # Append any errors to the config.log.
       cat conftest.err 1>&5
       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
       if diff conftest.exp conftest.er2 >/dev/null; then
         lt_cv_prog_compiler__b=yes
       fi
     else
       lt_cv_prog_compiler__b=yes
     fi
   fi
   $RM -r conftest*
   LDFLAGS="$save_LDFLAGS"

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
$as_echo "$lt_cv_prog_compiler__b" >&6; }

if test x"$lt_cv_prog_compiler__b" = xyes; then
    archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
else
    archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
fi

	  ;;
	esac
      fi
      if test "$with_gnu_ld" = no; then
	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
	hardcode_libdir_separator=:

	case $host_cpu in
	hppa*64*|ia64*)
	  hardcode_direct=no
	  hardcode_shlibpath_var=no
	  ;;
	*)
	  hardcode_direct=yes
	  hardcode_direct_absolute=yes
	  export_dynamic_flag_spec='${wl}-E'

	  # hardcode_minus_L: Not really in the search PATH,
	  # but as the default location of the library.
	  hardcode_minus_L=yes
	  ;;
	esac
      fi
      ;;

    irix5* | irix6* | nonstopux*)
      if test "$GCC" = yes; then
	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
	# Try to use the -exported_symbol ld option, if it does not
	# work, assume that -exports_file does not work either and
	# implicitly export all symbols.
	# This should be the same for all languages, so no per-tag cache variable.
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
if ${lt_cv_irix_exported_symbol+:} false; then :
  $as_echo_n "(cached) " >&6
else
  save_LDFLAGS="$LDFLAGS"
	   LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
int foo (void) { return 0; }
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  lt_cv_irix_exported_symbol=yes
else
  lt_cv_irix_exported_symbol=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
           LDFLAGS="$save_LDFLAGS"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
$as_echo "$lt_cv_irix_exported_symbol" >&6; }
	if test "$lt_cv_irix_exported_symbol" = yes; then
          archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
	fi
      else
	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
      fi
      archive_cmds_need_lc='no'
      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
      hardcode_libdir_separator=:
      inherit_rpath=yes
      link_all_deplibs=yes
      ;;

    netbsd* | netbsdelf*-gnu)
      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
      else
	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
      fi
      hardcode_libdir_flag_spec='-R$libdir'
      hardcode_direct=yes
      hardcode_shlibpath_var=no
      ;;

    newsos6)
      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_direct=yes
      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
      hardcode_libdir_separator=:
      hardcode_shlibpath_var=no
      ;;

    *nto* | *qnx*)
      ;;

    openbsd*)
      if test -f /usr/libexec/ld.so; then
	hardcode_direct=yes
	hardcode_shlibpath_var=no
	hardcode_direct_absolute=yes
	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
	  hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
	  export_dynamic_flag_spec='${wl}-E'
	else
	  case $host_os in
	   openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
	     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
	     hardcode_libdir_flag_spec='-R$libdir'
	     ;;
	   *)
	     archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
	     hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
	     ;;
	  esac
	fi
      else
	ld_shlibs=no
      fi
      ;;

    os2*)
      hardcode_libdir_flag_spec='-L$libdir'
      hardcode_minus_L=yes
      allow_undefined_flag=unsupported
      archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
      old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
      ;;

    osf3*)
      if test "$GCC" = yes; then
	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
      else
	allow_undefined_flag=' -expect_unresolved \*'
	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
      fi
      archive_cmds_need_lc='no'
      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
      hardcode_libdir_separator=:
      ;;

    osf4* | osf5*)	# as osf3* with the addition of -msym flag
      if test "$GCC" = yes; then
	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
	archive_cmds='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
	hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
      else
	allow_undefined_flag=' -expect_unresolved \*'
	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'

	# Both c and cxx compiler support -rpath directly
	hardcode_libdir_flag_spec='-rpath $libdir'
      fi
      archive_cmds_need_lc='no'
      hardcode_libdir_separator=:
      ;;

    solaris*)
      no_undefined_flag=' -z defs'
      if test "$GCC" = yes; then
	wlarc='${wl}'
	archive_cmds='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
	  $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
      else
	case `$CC -V 2>&1` in
	*"Compilers 5.0"*)
	  wlarc=''
	  archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
	  ;;
	*)
	  wlarc='${wl}'
	  archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
	  ;;
	esac
      fi
      hardcode_libdir_flag_spec='-R$libdir'
      hardcode_shlibpath_var=no
      case $host_os in
      solaris2.[0-5] | solaris2.[0-5].*) ;;
      *)
	# The compiler driver will combine and reorder linker options,
	# but understands `-z linker_flag'.  GCC discards it without `$wl',
	# but is careful enough not to reorder.
	# Supported since Solaris 2.6 (maybe 2.5.1?)
	if test "$GCC" = yes; then
	  whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
	else
	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
	fi
	;;
      esac
      link_all_deplibs=yes
      ;;

    sunos4*)
      if test "x$host_vendor" = xsequent; then
	# Use $CC to link under sequent, because it throws in some extra .o
	# files that make .init and .fini sections work.
	archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
      else
	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
      fi
      hardcode_libdir_flag_spec='-L$libdir'
      hardcode_direct=yes
      hardcode_minus_L=yes
      hardcode_shlibpath_var=no
      ;;

    sysv4)
      case $host_vendor in
	sni)
	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
	  hardcode_direct=yes # is this really true???
	;;
	siemens)
	  ## LD is ld it makes a PLAMLIB
	  ## CC just makes a GrossModule.
	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
	  reload_cmds='$CC -r -o $output$reload_objs'
	  hardcode_direct=no
        ;;
	motorola)
	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
	;;
      esac
      runpath_var='LD_RUN_PATH'
      hardcode_shlibpath_var=no
      ;;

    sysv4.3*)
      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_shlibpath_var=no
      export_dynamic_flag_spec='-Bexport'
      ;;

    sysv4*MP*)
      if test -d /usr/nec; then
	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
	hardcode_shlibpath_var=no
	runpath_var=LD_RUN_PATH
	hardcode_runpath_var=yes
	ld_shlibs=yes
      fi
      ;;

    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
      no_undefined_flag='${wl}-z,text'
      archive_cmds_need_lc=no
      hardcode_shlibpath_var=no
      runpath_var='LD_RUN_PATH'

      if test "$GCC" = yes; then
	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
      else
	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
      fi
      ;;

    sysv5* | sco3.2v5* | sco5v6*)
      # Note: We can NOT use -z defs as we might desire, because we do not
      # link with -lc, and that would cause any symbols used from libc to
      # always be unresolved, which means just about no library would
      # ever link correctly.  If we're not using GNU ld we use -z text
      # though, which does catch some bad symbols but isn't as heavy-handed
      # as -z defs.
      no_undefined_flag='${wl}-z,text'
      allow_undefined_flag='${wl}-z,nodefs'
      archive_cmds_need_lc=no
      hardcode_shlibpath_var=no
      hardcode_libdir_flag_spec='${wl}-R,$libdir'
      hardcode_libdir_separator=':'
      link_all_deplibs=yes
      export_dynamic_flag_spec='${wl}-Bexport'
      runpath_var='LD_RUN_PATH'

      if test "$GCC" = yes; then
	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
      else
	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
      fi
      ;;

    uts4*)
      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
      hardcode_libdir_flag_spec='-L$libdir'
      hardcode_shlibpath_var=no
      ;;

    *)
      ld_shlibs=no
      ;;
    esac

    if test x$host_vendor = xsni; then
      case $host in
      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
	export_dynamic_flag_spec='${wl}-Blargedynsym'
	;;
      esac
    fi
  fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
$as_echo "$ld_shlibs" >&6; }
test "$ld_shlibs" = no && can_build_shared=no

with_gnu_ld=$with_gnu_ld















#
# Do we need to explicitly link libc?
#
case "x$archive_cmds_need_lc" in
x|xyes)
  # Assume -lc should be added
  archive_cmds_need_lc=yes

  if test "$enable_shared" = yes && test "$GCC" = yes; then
    case $archive_cmds in
    *'~'*)
      # FIXME: we may have to deal with multi-command sequences.
      ;;
    '$CC '*)
      # Test whether the compiler implicitly links with -lc since on some
      # systems, -lgcc has to come before -lc. If gcc already passes -lc
      # to ld, don't add -lc before -lgcc.
      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
if ${lt_cv_archive_cmds_need_lc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  $RM conftest*
	echo "$lt_simple_compile_test_code" > conftest.$ac_ext

	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } 2>conftest.err; then
	  soname=conftest
	  lib=conftest
	  libobjs=conftest.$ac_objext
	  deplibs=
	  wl=$lt_prog_compiler_wl
	  pic_flag=$lt_prog_compiler_pic
	  compiler_flags=-v
	  linker_flags=-v
	  verstring=
	  output_objdir=.
	  libname=conftest
	  lt_save_allow_undefined_flag=$allow_undefined_flag
	  allow_undefined_flag=
	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
	  then
	    lt_cv_archive_cmds_need_lc=no
	  else
	    lt_cv_archive_cmds_need_lc=yes
	  fi
	  allow_undefined_flag=$lt_save_allow_undefined_flag
	else
	  cat conftest.err 1>&5
	fi
	$RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
      archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
      ;;
    esac
  fi
  ;;
esac
























































































































































  { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
$as_echo_n "checking dynamic linker characteristics... " >&6; }

if test "$GCC" = yes; then
  case $host_os in
    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
    *) lt_awk_arg="/^libraries:/" ;;
  esac
  case $host_os in
    mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;;
    *) lt_sed_strip_eq="s,=/,/,g" ;;
  esac
  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
  case $lt_search_path_spec in
  *\;*)
    # if the path contains ";" then we assume it to be the separator
    # otherwise default to the standard path separator (i.e. ":") - it is
    # assumed that no part of a normal pathname contains ";" but that should
    # okay in the real world where ";" in dirpaths is itself problematic.
    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
    ;;
  *)
    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
    ;;
  esac
  # Ok, now we have the path, separated by spaces, we can step through it
  # and add multilib dir if necessary.
  lt_tmp_lt_search_path_spec=
  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
  for lt_sys_path in $lt_search_path_spec; do
    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
    else
      test -d "$lt_sys_path" && \
	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
    fi
  done
  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
BEGIN {RS=" "; FS="/|\n";} {
  lt_foo="";
  lt_count=0;
  for (lt_i = NF; lt_i > 0; lt_i--) {
    if ($lt_i != "" && $lt_i != ".") {
      if ($lt_i == "..") {
        lt_count++;
      } else {
        if (lt_count == 0) {
          lt_foo="/" $lt_i lt_foo;
        } else {
          lt_count--;
        }
      }
    }
  }
  if (lt_foo != "") { lt_freq[lt_foo]++; }
  if (lt_freq[lt_foo] == 1) { print lt_foo; }
}'`
  # AWK program above erroneously prepends '/' to C:/dos/paths
  # for these hosts.
  case $host_os in
    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
      $SED 's,/\([A-Za-z]:\),\1,g'` ;;
  esac
  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
else
  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
fi
library_names_spec=
libname_spec='lib$name'
soname_spec=
shrext_cmds=".so"
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
shlibpath_overrides_runpath=unknown
version_type=none
dynamic_linker="$host_os ld.so"
sys_lib_dlsearch_path_spec="/lib /usr/lib"
need_lib_prefix=unknown
hardcode_into_libs=no

# when you set need_version to no, make sure it does not cause -set_version
# flags to be left without arguments
need_version=unknown

case $host_os in
aix3*)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
  shlibpath_var=LIBPATH

  # AIX 3 has no versioning support, so we append a major version to the name.
  soname_spec='${libname}${release}${shared_ext}$major'
  ;;

aix[4-9]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  hardcode_into_libs=yes
  if test "$host_cpu" = ia64; then
    # AIX 5 supports IA64
    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
    shlibpath_var=LD_LIBRARY_PATH
  else
    # With GCC up to 2.95.x, collect2 would create an import file
    # for dependence libraries.  The import file would start with
    # the line `#! .'.  This would cause the generated library to
    # depend on `.', always an invalid library.  This was fixed in
    # development snapshots of GCC prior to 3.0.
    case $host_os in
      aix4 | aix4.[01] | aix4.[01].*)
      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
	   echo ' yes '
	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
	:
      else
	can_build_shared=no
      fi
      ;;
    esac
    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
    # soname into executable. Probably we can add versioning support to
    # collect2, so additional links can be useful in future.
    if test "$aix_use_runtimelinking" = yes; then
      # If using run time linking (on AIX 4.2 or later) use lib.so
      # instead of lib.a to let people know that these are not
      # typical AIX shared libraries.
      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    else
      # We preserve .a as extension for shared libraries through AIX4.2
      # and later when we are not doing run time linking.
      library_names_spec='${libname}${release}.a $libname.a'
      soname_spec='${libname}${release}${shared_ext}$major'
    fi
    shlibpath_var=LIBPATH
  fi
  ;;

amigaos*)
  case $host_cpu in
  powerpc)
    # Since July 2007 AmigaOS4 officially supports .so libraries.
    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    ;;
  m68k)
    library_names_spec='$libname.ixlibrary $libname.a'
    # Create ${libname}_ixlibrary.a entries in /sys/libs.
    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
    ;;
  esac
  ;;

beos*)
  library_names_spec='${libname}${shared_ext}'
  dynamic_linker="$host_os ld.so"
  shlibpath_var=LIBRARY_PATH
  ;;

bsdi[45]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
  # the default ld.so.conf also contains /usr/contrib/lib and
  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
  # libtool to hard-code these into programs
  ;;

cygwin* | mingw* | pw32* | cegcc*)
  version_type=windows
  shrext_cmds=".dll"
  need_version=no
  need_lib_prefix=no

  case $GCC,$cc_basename in
  yes,*)
    # gcc
    library_names_spec='$libname.dll.a'
    # DLL is installed to $(libdir)/../bin by postinstall_cmds
    postinstall_cmds='base_file=`basename \${file}`~
      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
      dldir=$destdir/`dirname \$dlpath`~
      test -d \$dldir || mkdir -p \$dldir~
      $install_prog $dir/$dlname \$dldir/$dlname~
      chmod a+x \$dldir/$dlname~
      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
      fi'
    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
      dlpath=$dir/\$dldll~
       $RM \$dlpath'
    shlibpath_overrides_runpath=yes

    case $host_os in
    cygwin*)
      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'

      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
      ;;
    mingw* | cegcc*)
      # MinGW DLLs use traditional 'lib' prefix
      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
      ;;
    pw32*)
      # pw32 DLLs use 'pw' prefix rather than 'lib'
      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
      ;;
    esac
    dynamic_linker='Win32 ld.exe'
    ;;

  *,cl*)
    # Native MSVC
    libname_spec='$name'
    soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
    library_names_spec='${libname}.dll.lib'

    case $build_os in
    mingw*)
      sys_lib_search_path_spec=
      lt_save_ifs=$IFS
      IFS=';'
      for lt_path in $LIB
      do
        IFS=$lt_save_ifs
        # Let DOS variable expansion print the short 8.3 style file name.
        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
      done
      IFS=$lt_save_ifs
      # Convert to MSYS style.
      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
      ;;
    cygwin*)
      # Convert to unix form, then to dos form, then back to unix form
      # but this time dos style (no spaces!) so that the unix form looks
      # like /cygdrive/c/PROGRA~1:/cygdr...
      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
      ;;
    *)
      sys_lib_search_path_spec="$LIB"
      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
        # It is most probably a Windows format PATH.
        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
      else
        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
      fi
      # FIXME: find the short name or the path components, as spaces are
      # common. (e.g. "Program Files" -> "PROGRA~1")
      ;;
    esac

    # DLL is installed to $(libdir)/../bin by postinstall_cmds
    postinstall_cmds='base_file=`basename \${file}`~
      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
      dldir=$destdir/`dirname \$dlpath`~
      test -d \$dldir || mkdir -p \$dldir~
      $install_prog $dir/$dlname \$dldir/$dlname'
    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
      dlpath=$dir/\$dldll~
       $RM \$dlpath'
    shlibpath_overrides_runpath=yes
    dynamic_linker='Win32 link.exe'
    ;;

  *)
    # Assume MSVC wrapper
    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
    dynamic_linker='Win32 ld.exe'
    ;;
  esac
  # FIXME: first we should search . and the directory the executable is in
  shlibpath_var=PATH
  ;;

darwin* | rhapsody*)
  dynamic_linker="$host_os dyld"
  version_type=darwin
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
  soname_spec='${libname}${release}${major}$shared_ext'
  shlibpath_overrides_runpath=yes
  shlibpath_var=DYLD_LIBRARY_PATH
  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'

  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
  ;;

dgux*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

freebsd* | dragonfly*)
  # DragonFly does not have aout.  When/if they implement a new
  # versioning mechanism, adjust this.
  if test -x /usr/bin/objformat; then
    objformat=`/usr/bin/objformat`
  else
    case $host_os in
    freebsd[23].*) objformat=aout ;;
    *) objformat=elf ;;
    esac
  fi
  version_type=freebsd-$objformat
  case $version_type in
    freebsd-elf*)
      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
      need_version=no
      need_lib_prefix=no
      ;;
    freebsd-*)
      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
      need_version=yes
      ;;
  esac
  shlibpath_var=LD_LIBRARY_PATH
  case $host_os in
  freebsd2.*)
    shlibpath_overrides_runpath=yes
    ;;
  freebsd3.[01]* | freebsdelf3.[01]*)
    shlibpath_overrides_runpath=yes
    hardcode_into_libs=yes
    ;;
  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
    shlibpath_overrides_runpath=no
    hardcode_into_libs=yes
    ;;
  *) # from 4.6 on, and DragonFly
    shlibpath_overrides_runpath=yes
    hardcode_into_libs=yes
    ;;
  esac
  ;;

haiku*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  dynamic_linker="$host_os runtime_loader"
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
  hardcode_into_libs=yes
  ;;

hpux9* | hpux10* | hpux11*)
  # Give a soname corresponding to the major version so that dld.sl refuses to
  # link against other versions.
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  case $host_cpu in
  ia64*)
    shrext_cmds='.so'
    hardcode_into_libs=yes
    dynamic_linker="$host_os dld.so"
    shlibpath_var=LD_LIBRARY_PATH
    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    if test "X$HPUX_IA64_MODE" = X32; then
      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
    else
      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
    fi
    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
    ;;
  hppa*64*)
    shrext_cmds='.sl'
    hardcode_into_libs=yes
    dynamic_linker="$host_os dld.sl"
    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
    ;;
  *)
    shrext_cmds='.sl'
    dynamic_linker="$host_os dld.sl"
    shlibpath_var=SHLIB_PATH
    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    ;;
  esac
  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
  postinstall_cmds='chmod 555 $lib'
  # or fails outright, so override atomically:
  install_override_mode=555
  ;;

interix[3-9]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  ;;

irix5* | irix6* | nonstopux*)
  case $host_os in
    nonstopux*) version_type=nonstopux ;;
    *)
	if test "$lt_cv_prog_gnu_ld" = yes; then
		version_type=linux # correct to gnu/linux during the next big refactor
	else
		version_type=irix
	fi ;;
  esac
  need_lib_prefix=no
  need_version=no
  soname_spec='${libname}${release}${shared_ext}$major'
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
  case $host_os in
  irix5* | nonstopux*)
    libsuff= shlibsuff=
    ;;
  *)
    case $LD in # libtool.m4 will add one of these switches to LD
    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
      libsuff= shlibsuff= libmagic=32-bit;;
    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
      libsuff=32 shlibsuff=N32 libmagic=N32;;
    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
      libsuff=64 shlibsuff=64 libmagic=64-bit;;
    *) libsuff= shlibsuff= libmagic=never-match;;
    esac
    ;;
  esac
  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
  shlibpath_overrides_runpath=no
  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
  hardcode_into_libs=yes
  ;;

# No shared lib support for Linux oldld, aout, or coff.
linux*oldld* | linux*aout* | linux*coff*)
  dynamic_linker=no
  ;;

# This must be glibc/ELF.
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no

  # Some binutils ld are patched to set DT_RUNPATH
  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_shlibpath_overrides_runpath=no
    save_LDFLAGS=$LDFLAGS
    save_libdir=$libdir
    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
  lt_cv_shlibpath_overrides_runpath=yes
fi
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    LDFLAGS=$save_LDFLAGS
    libdir=$save_libdir

fi

  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath

  # This implies no fast_install, which is unacceptable.
  # Some rework will be needed to allow for fast_install
  # before this can be enabled.
  hardcode_into_libs=yes

  # Append ld.so.conf contents to the search path
  if test -f /etc/ld.so.conf; then
    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
  fi

  # We used to test for /lib/ld.so.1 and disable shared libraries on
  # powerpc, because MkLinux only supported shared libraries with the
  # GNU dynamic linker.  Since this was broken with cross compilers,
  # most powerpc-linux boxes support dynamic linking these days and
  # people can always --disable-shared, the test was removed, and we
  # assume the GNU/Linux dynamic linker is in use.
  dynamic_linker='GNU/Linux ld.so'
  ;;

netbsdelf*-gnu)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  dynamic_linker='NetBSD ld.elf_so'
  ;;

netbsd*)
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
    dynamic_linker='NetBSD (a.out) ld.so'
  else
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    dynamic_linker='NetBSD ld.elf_so'
  fi
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  ;;

newsos6)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  ;;

*nto* | *qnx*)
  version_type=qnx
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  dynamic_linker='ldqnx.so'
  ;;

openbsd*)
  version_type=sunos
  sys_lib_dlsearch_path_spec="/usr/lib"
  need_lib_prefix=no
  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
  case $host_os in
    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
    *)				need_version=no  ;;
  esac
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
    case $host_os in
      openbsd2.[89] | openbsd2.[89].*)
	shlibpath_overrides_runpath=no
	;;
      *)
	shlibpath_overrides_runpath=yes
	;;
      esac
  else
    shlibpath_overrides_runpath=yes
  fi
  ;;

os2*)
  libname_spec='$name'
  shrext_cmds=".dll"
  need_lib_prefix=no
  library_names_spec='$libname${shared_ext} $libname.a'
  dynamic_linker='OS/2 ld.exe'
  shlibpath_var=LIBPATH
  ;;

osf3* | osf4* | osf5*)
  version_type=osf
  need_lib_prefix=no
  need_version=no
  soname_spec='${libname}${release}${shared_ext}$major'
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
  ;;

rdos*)
  dynamic_linker=no
  ;;

solaris*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  # ldd complains unless libraries are executable
  postinstall_cmds='chmod +x $lib'
  ;;

sunos4*)
  version_type=sunos
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  if test "$with_gnu_ld" = yes; then
    need_lib_prefix=no
  fi
  need_version=yes
  ;;

sysv4 | sysv4.3*)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  case $host_vendor in
    sni)
      shlibpath_overrides_runpath=no
      need_lib_prefix=no
      runpath_var=LD_RUN_PATH
      ;;
    siemens)
      need_lib_prefix=no
      ;;
    motorola)
      need_lib_prefix=no
      need_version=no
      shlibpath_overrides_runpath=no
      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
      ;;
  esac
  ;;

sysv4*MP*)
  if test -d /usr/nec ;then
    version_type=linux # correct to gnu/linux during the next big refactor
    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
    soname_spec='$libname${shared_ext}.$major'
    shlibpath_var=LD_LIBRARY_PATH
  fi
  ;;

sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
  version_type=freebsd-elf
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  if test "$with_gnu_ld" = yes; then
    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
  else
    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
    case $host_os in
      sco3.2v5*)
        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
	;;
    esac
  fi
  sys_lib_dlsearch_path_spec='/usr/lib'
  ;;

tpf*)
  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  ;;

uts4*)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

*)
  dynamic_linker=no
  ;;
esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
$as_echo "$dynamic_linker" >&6; }
test "$dynamic_linker" = no && can_build_shared=no

variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
if test "$GCC" = yes; then
  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
fi

if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
fi
if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
fi




























































































  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
hardcode_action=
if test -n "$hardcode_libdir_flag_spec" ||
   test -n "$runpath_var" ||
   test "X$hardcode_automatic" = "Xyes" ; then

  # We can hardcode non-existent directories.
  if test "$hardcode_direct" != no &&
     # If the only mechanism to avoid hardcoding is shlibpath_var, we
     # have to relink, otherwise we might link with an installed library
     # when we should be linking with a yet-to-be-installed one
     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no &&
     test "$hardcode_minus_L" != no; then
    # Linking always hardcodes the temporary library directory.
    hardcode_action=relink
  else
    # We can link without hardcoding, and we can hardcode nonexisting dirs.
    hardcode_action=immediate
  fi
else
  # We cannot hardcode anything, or else we can only hardcode existing
  # directories.
  hardcode_action=unsupported
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
$as_echo "$hardcode_action" >&6; }

if test "$hardcode_action" = relink ||
   test "$inherit_rpath" = yes; then
  # Fast installation is not supported
  enable_fast_install=no
elif test "$shlibpath_overrides_runpath" = yes ||
     test "$enable_shared" = no; then
  # Fast installation is not necessary
  enable_fast_install=needless
fi






  if test "x$enable_dlopen" != xyes; then
  enable_dlopen=unknown
  enable_dlopen_self=unknown
  enable_dlopen_self_static=unknown
else
  lt_cv_dlopen=no
  lt_cv_dlopen_libs=

  case $host_os in
  beos*)
    lt_cv_dlopen="load_add_on"
    lt_cv_dlopen_libs=
    lt_cv_dlopen_self=yes
    ;;

  mingw* | pw32* | cegcc*)
    lt_cv_dlopen="LoadLibrary"
    lt_cv_dlopen_libs=
    ;;

  cygwin*)
    lt_cv_dlopen="dlopen"
    lt_cv_dlopen_libs=
    ;;

  darwin*)
  # if libdl is installed we need to link against it
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
if ${ac_cv_lib_dl_dlopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldl  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_dl_dlopen=yes
else
  ac_cv_lib_dl_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
else

    lt_cv_dlopen="dyld"
    lt_cv_dlopen_libs=
    lt_cv_dlopen_self=yes

fi

    ;;

  *)
    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
if test "x$ac_cv_func_shl_load" = xyes; then :
  lt_cv_dlopen="shl_load"
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
$as_echo_n "checking for shl_load in -ldld... " >&6; }
if ${ac_cv_lib_dld_shl_load+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldld  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char shl_load ();
int
main ()
{
return shl_load ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_dld_shl_load=yes
else
  ac_cv_lib_dld_shl_load=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
else
  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
if test "x$ac_cv_func_dlopen" = xyes; then :
  lt_cv_dlopen="dlopen"
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
if ${ac_cv_lib_dl_dlopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldl  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_dl_dlopen=yes
else
  ac_cv_lib_dl_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
$as_echo_n "checking for dlopen in -lsvld... " >&6; }
if ${ac_cv_lib_svld_dlopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lsvld  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_svld_dlopen=yes
else
  ac_cv_lib_svld_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
$as_echo_n "checking for dld_link in -ldld... " >&6; }
if ${ac_cv_lib_dld_dld_link+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldld  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dld_link ();
int
main ()
{
return dld_link ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_dld_dld_link=yes
else
  ac_cv_lib_dld_dld_link=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
fi


fi


fi


fi


fi


fi

    ;;
  esac

  if test "x$lt_cv_dlopen" != xno; then
    enable_dlopen=yes
  else
    enable_dlopen=no
  fi

  case $lt_cv_dlopen in
  dlopen)
    save_CPPFLAGS="$CPPFLAGS"
    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"

    save_LDFLAGS="$LDFLAGS"
    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"

    save_LIBS="$LIBS"
    LIBS="$lt_cv_dlopen_libs $LIBS"

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
$as_echo_n "checking whether a program can dlopen itself... " >&6; }
if ${lt_cv_dlopen_self+:} false; then :
  $as_echo_n "(cached) " >&6
else
  	  if test "$cross_compiling" = yes; then :
  lt_cv_dlopen_self=cross
else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<_LT_EOF
#line $LINENO "configure"
#include "confdefs.h"

#if HAVE_DLFCN_H
#include 
#endif

#include 

#ifdef RTLD_GLOBAL
#  define LT_DLGLOBAL		RTLD_GLOBAL
#else
#  ifdef DL_GLOBAL
#    define LT_DLGLOBAL		DL_GLOBAL
#  else
#    define LT_DLGLOBAL		0
#  endif
#endif

/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
   find out it does not work in some platform. */
#ifndef LT_DLLAZY_OR_NOW
#  ifdef RTLD_LAZY
#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
#  else
#    ifdef DL_LAZY
#      define LT_DLLAZY_OR_NOW		DL_LAZY
#    else
#      ifdef RTLD_NOW
#        define LT_DLLAZY_OR_NOW	RTLD_NOW
#      else
#        ifdef DL_NOW
#          define LT_DLLAZY_OR_NOW	DL_NOW
#        else
#          define LT_DLLAZY_OR_NOW	0
#        endif
#      endif
#    endif
#  endif
#endif

/* When -fvisbility=hidden is used, assume the code has been annotated
   correspondingly for the symbols needed.  */
#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
int fnord () __attribute__((visibility("default")));
#endif

int fnord () { return 42; }
int main ()
{
  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
  int status = $lt_dlunknown;

  if (self)
    {
      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
      else
        {
	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
          else puts (dlerror ());
	}
      /* dlclose (self); */
    }
  else
    puts (dlerror ());

  return status;
}
_LT_EOF
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
    (./conftest; exit; ) >&5 2>/dev/null
    lt_status=$?
    case x$lt_status in
      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
    esac
  else :
    # compilation failed
    lt_cv_dlopen_self=no
  fi
fi
rm -fr conftest*


fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
$as_echo "$lt_cv_dlopen_self" >&6; }

    if test "x$lt_cv_dlopen_self" = xyes; then
      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
if ${lt_cv_dlopen_self_static+:} false; then :
  $as_echo_n "(cached) " >&6
else
  	  if test "$cross_compiling" = yes; then :
  lt_cv_dlopen_self_static=cross
else
  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
  lt_status=$lt_dlunknown
  cat > conftest.$ac_ext <<_LT_EOF
#line $LINENO "configure"
#include "confdefs.h"

#if HAVE_DLFCN_H
#include 
#endif

#include 

#ifdef RTLD_GLOBAL
#  define LT_DLGLOBAL		RTLD_GLOBAL
#else
#  ifdef DL_GLOBAL
#    define LT_DLGLOBAL		DL_GLOBAL
#  else
#    define LT_DLGLOBAL		0
#  endif
#endif

/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
   find out it does not work in some platform. */
#ifndef LT_DLLAZY_OR_NOW
#  ifdef RTLD_LAZY
#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
#  else
#    ifdef DL_LAZY
#      define LT_DLLAZY_OR_NOW		DL_LAZY
#    else
#      ifdef RTLD_NOW
#        define LT_DLLAZY_OR_NOW	RTLD_NOW
#      else
#        ifdef DL_NOW
#          define LT_DLLAZY_OR_NOW	DL_NOW
#        else
#          define LT_DLLAZY_OR_NOW	0
#        endif
#      endif
#    endif
#  endif
#endif

/* When -fvisbility=hidden is used, assume the code has been annotated
   correspondingly for the symbols needed.  */
#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
int fnord () __attribute__((visibility("default")));
#endif

int fnord () { return 42; }
int main ()
{
  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
  int status = $lt_dlunknown;

  if (self)
    {
      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
      else
        {
	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
          else puts (dlerror ());
	}
      /* dlclose (self); */
    }
  else
    puts (dlerror ());

  return status;
}
_LT_EOF
  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
  (eval $ac_link) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
    (./conftest; exit; ) >&5 2>/dev/null
    lt_status=$?
    case x$lt_status in
      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
    esac
  else :
    # compilation failed
    lt_cv_dlopen_self_static=no
  fi
fi
rm -fr conftest*


fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
$as_echo "$lt_cv_dlopen_self_static" >&6; }
    fi

    CPPFLAGS="$save_CPPFLAGS"
    LDFLAGS="$save_LDFLAGS"
    LIBS="$save_LIBS"
    ;;
  esac

  case $lt_cv_dlopen_self in
  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
  *) enable_dlopen_self=unknown ;;
  esac

  case $lt_cv_dlopen_self_static in
  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
  *) enable_dlopen_self_static=unknown ;;
  esac
fi

















striplib=
old_striplib=
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
$as_echo_n "checking whether stripping libraries is possible... " >&6; }
if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
# FIXME - insert some real tests, host_os isn't really good enough
  case $host_os in
  darwin*)
    if test -n "$STRIP" ; then
      striplib="$STRIP -x"
      old_striplib="$STRIP -S"
      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    else
      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi
    ;;
  *)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    ;;
  esac
fi












  # Report which library types will actually be built
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
$as_echo_n "checking if libtool supports shared libraries... " >&6; }
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
$as_echo "$can_build_shared" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
$as_echo_n "checking whether to build shared libraries... " >&6; }
  test "$can_build_shared" = "no" && enable_shared=no

  # On AIX, shared libraries and static libraries use the same namespace, and
  # are all built from PIC.
  case $host_os in
  aix3*)
    test "$enable_shared" = yes && enable_static=no
    if test -n "$RANLIB"; then
      archive_cmds="$archive_cmds~\$RANLIB \$lib"
      postinstall_cmds='$RANLIB $lib'
    fi
    ;;

  aix[4-9]*)
    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
      test "$enable_shared" = yes && enable_static=no
    fi
    ;;
  esac
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
$as_echo "$enable_shared" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
$as_echo_n "checking whether to build static libraries... " >&6; }
  # Make sure either enable_shared or enable_static is yes.
  test "$enable_shared" = yes || enable_static=yes
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
$as_echo "$enable_static" >&6; }




fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

CC="$lt_save_CC"

      if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
    (test "X$CXX" != "Xg++"))) ; then
  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
if test -z "$CXXCPP"; then
  if ${ac_cv_prog_CXXCPP+:} false; then :
  $as_echo_n "(cached) " >&6
else
      # Double quotes because CXXCPP needs to be expanded
    for CXXCPP in "$CXX -E" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer  to  if __STDC__ is defined, since
  #  exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include 
#else
# include 
#endif
		     Syntax error
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :
  break
fi

    done
    ac_cv_prog_CXXCPP=$CXXCPP

fi
  CXXCPP=$ac_cv_prog_CXXCPP
else
  ac_cv_prog_CXXCPP=$CXXCPP
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
$as_echo "$CXXCPP" >&6; }
ac_preproc_ok=false
for ac_cxx_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer  to  if __STDC__ is defined, since
  #  exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include 
#else
# include 
#endif
		     Syntax error
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
_ACEOF
if ac_fn_cxx_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :

else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

else
  _lt_caught_CXX_error=yes
fi

ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

archive_cmds_need_lc_CXX=no
allow_undefined_flag_CXX=
always_export_symbols_CXX=no
archive_expsym_cmds_CXX=
compiler_needs_object_CXX=no
export_dynamic_flag_spec_CXX=
hardcode_direct_CXX=no
hardcode_direct_absolute_CXX=no
hardcode_libdir_flag_spec_CXX=
hardcode_libdir_separator_CXX=
hardcode_minus_L_CXX=no
hardcode_shlibpath_var_CXX=unsupported
hardcode_automatic_CXX=no
inherit_rpath_CXX=no
module_cmds_CXX=
module_expsym_cmds_CXX=
link_all_deplibs_CXX=unknown
old_archive_cmds_CXX=$old_archive_cmds
reload_flag_CXX=$reload_flag
reload_cmds_CXX=$reload_cmds
no_undefined_flag_CXX=
whole_archive_flag_spec_CXX=
enable_shared_with_static_runtimes_CXX=no

# Source file extension for C++ test sources.
ac_ext=cpp

# Object file extension for compiled C++ test sources.
objext=o
objext_CXX=$objext

# No sense in running all these tests if we already determined that
# the CXX compiler isn't working.  Some variables (like enable_shared)
# are currently assumed to apply to all compilers on this platform,
# and will be corrupted by setting them based on a non-working compiler.
if test "$_lt_caught_CXX_error" != yes; then
  # Code to be used in simple compile tests
  lt_simple_compile_test_code="int some_variable = 0;"

  # Code to be used in simple link tests
  lt_simple_link_test_code='int main(int, char *[]) { return(0); }'

  # ltmain only uses $CC for tagged configurations so make sure $CC is set.






# If no C compiler was specified, use CC.
LTCC=${LTCC-"$CC"}

# If no C compiler flags were specified, use CFLAGS.
LTCFLAGS=${LTCFLAGS-"$CFLAGS"}

# Allow CC to be a program name with arguments.
compiler=$CC


  # save warnings/boilerplate of simple test code
  ac_outfile=conftest.$ac_objext
echo "$lt_simple_compile_test_code" >conftest.$ac_ext
eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
_lt_compiler_boilerplate=`cat conftest.err`
$RM conftest*

  ac_outfile=conftest.$ac_objext
echo "$lt_simple_link_test_code" >conftest.$ac_ext
eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
_lt_linker_boilerplate=`cat conftest.err`
$RM -r conftest*


  # Allow CC to be a program name with arguments.
  lt_save_CC=$CC
  lt_save_CFLAGS=$CFLAGS
  lt_save_LD=$LD
  lt_save_GCC=$GCC
  GCC=$GXX
  lt_save_with_gnu_ld=$with_gnu_ld
  lt_save_path_LD=$lt_cv_path_LD
  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
  else
    $as_unset lt_cv_prog_gnu_ld
  fi
  if test -n "${lt_cv_path_LDCXX+set}"; then
    lt_cv_path_LD=$lt_cv_path_LDCXX
  else
    $as_unset lt_cv_path_LD
  fi
  test -z "${LDCXX+set}" || LD=$LDCXX
  CC=${CXX-"c++"}
  CFLAGS=$CXXFLAGS
  compiler=$CC
  compiler_CXX=$CC
  for cc_temp in $compiler""; do
  case $cc_temp in
    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
    \-*) ;;
    *) break;;
  esac
done
cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`


  if test -n "$compiler"; then
    # We don't want -fno-exception when compiling C++ code, so set the
    # no_builtin_flag separately
    if test "$GXX" = yes; then
      lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
    else
      lt_prog_compiler_no_builtin_flag_CXX=
    fi

    if test "$GXX" = yes; then
      # Set up default GNU C++ configuration



# Check whether --with-gnu-ld was given.
if test "${with_gnu_ld+set}" = set; then :
  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
else
  with_gnu_ld=no
fi

ac_prog=ld
if test "$GCC" = yes; then
  # Check if gcc -print-prog-name=ld gives a path.
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
$as_echo_n "checking for ld used by $CC... " >&6; }
  case $host in
  *-*-mingw*)
    # gcc leaves a trailing carriage return which upsets mingw
    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
  *)
    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
  esac
  case $ac_prog in
    # Accept absolute paths.
    [\\/]* | ?:[\\/]*)
      re_direlt='/[^/][^/]*/\.\./'
      # Canonicalize the pathname of ld
      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
      done
      test -z "$LD" && LD="$ac_prog"
      ;;
  "")
    # If it fails, then pretend we aren't using GCC.
    ac_prog=ld
    ;;
  *)
    # If it is relative, then search for the first ld in PATH.
    with_gnu_ld=unknown
    ;;
  esac
elif test "$with_gnu_ld" = yes; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
$as_echo_n "checking for GNU ld... " >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
$as_echo_n "checking for non-GNU ld... " >&6; }
fi
if ${lt_cv_path_LD+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$LD"; then
  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
  for ac_dir in $PATH; do
    IFS="$lt_save_ifs"
    test -z "$ac_dir" && ac_dir=.
    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
      lt_cv_path_LD="$ac_dir/$ac_prog"
      # Check to see if the program is GNU ld.  I'd rather use --version,
      # but apparently some variants of GNU ld only accept -v.
      # Break only if it was the GNU/non-GNU ld that we prefer.
      case `"$lt_cv_path_LD" -v 2>&1 &5
$as_echo "$LD" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
if ${lt_cv_prog_gnu_ld+:} false; then :
  $as_echo_n "(cached) " >&6
else
  # I'd rather use --version here, but apparently some GNU lds only accept -v.
case `$LD -v 2>&1 &5
$as_echo "$lt_cv_prog_gnu_ld" >&6; }
with_gnu_ld=$lt_cv_prog_gnu_ld







      # Check if GNU C++ uses GNU ld as the underlying linker, since the
      # archiving commands below assume that GNU ld is being used.
      if test "$with_gnu_ld" = yes; then
        archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
        archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'

        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
        export_dynamic_flag_spec_CXX='${wl}--export-dynamic'

        # If archive_cmds runs LD, not CC, wlarc should be empty
        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
        #     investigate it a little bit more. (MM)
        wlarc='${wl}'

        # ancient GNU ld didn't support --whole-archive et. al.
        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
	  $GREP 'no-whole-archive' > /dev/null; then
          whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
        else
          whole_archive_flag_spec_CXX=
        fi
      else
        with_gnu_ld=no
        wlarc=

        # A generic and very simple default shared library creation
        # command for GNU C++ for the case where it uses the native
        # linker, instead of GNU ld.  If possible, this setting should
        # overridden to take advantage of the native linker features on
        # the platform it is being used on.
        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
      fi

      # Commands to make compiler produce verbose output that lists
      # what "hidden" libraries, object files and flags are used when
      # linking a shared library.
      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'

    else
      GXX=no
      with_gnu_ld=no
      wlarc=
    fi

    # PORTME: fill in a description of your system's C++ link characteristics
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
    ld_shlibs_CXX=yes
    case $host_os in
      aix3*)
        # FIXME: insert proper C++ library support
        ld_shlibs_CXX=no
        ;;
      aix[4-9]*)
        if test "$host_cpu" = ia64; then
          # On IA64, the linker does run time linking by default, so we don't
          # have to do anything special.
          aix_use_runtimelinking=no
          exp_sym_flag='-Bexport'
          no_entry_flag=""
        else
          aix_use_runtimelinking=no

          # Test if we are trying to use run time linking or normal
          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
          # need to do runtime linking.
          case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
	    for ld_flag in $LDFLAGS; do
	      case $ld_flag in
	      *-brtl*)
	        aix_use_runtimelinking=yes
	        break
	        ;;
	      esac
	    done
	    ;;
          esac

          exp_sym_flag='-bexport'
          no_entry_flag='-bnoentry'
        fi

        # When large executables or shared objects are built, AIX ld can
        # have problems creating the table of contents.  If linking a library
        # or program results in "error TOC overflow" add -mminimal-toc to
        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.

        archive_cmds_CXX=''
        hardcode_direct_CXX=yes
        hardcode_direct_absolute_CXX=yes
        hardcode_libdir_separator_CXX=':'
        link_all_deplibs_CXX=yes
        file_list_spec_CXX='${wl}-f,'

        if test "$GXX" = yes; then
          case $host_os in aix4.[012]|aix4.[012].*)
          # We only want to do this on AIX 4.2 and lower, the check
          # below for broken collect2 doesn't work under 4.3+
	  collect2name=`${CC} -print-prog-name=collect2`
	  if test -f "$collect2name" &&
	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
	  then
	    # We have reworked collect2
	    :
	  else
	    # We have old collect2
	    hardcode_direct_CXX=unsupported
	    # It fails to find uninstalled libraries when the uninstalled
	    # path is not listed in the libpath.  Setting hardcode_minus_L
	    # to unsupported forces relinking
	    hardcode_minus_L_CXX=yes
	    hardcode_libdir_flag_spec_CXX='-L$libdir'
	    hardcode_libdir_separator_CXX=
	  fi
          esac
          shared_flag='-shared'
	  if test "$aix_use_runtimelinking" = yes; then
	    shared_flag="$shared_flag "'${wl}-G'
	  fi
        else
          # not using gcc
          if test "$host_cpu" = ia64; then
	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
	  # chokes on -Wl,-G. The following line is correct:
	  shared_flag='-G'
          else
	    if test "$aix_use_runtimelinking" = yes; then
	      shared_flag='${wl}-G'
	    else
	      shared_flag='${wl}-bM:SRE'
	    fi
          fi
        fi

        export_dynamic_flag_spec_CXX='${wl}-bexpall'
        # It seems that -bexpall does not export symbols beginning with
        # underscore (_), so it is better to generate a list of symbols to
	# export.
        always_export_symbols_CXX=yes
        if test "$aix_use_runtimelinking" = yes; then
          # Warning - without using the other runtime loading flags (-brtl),
          # -berok will link without error, but may produce a broken library.
          allow_undefined_flag_CXX='-berok'
          # Determine the default libpath from the value encoded in an empty
          # executable.
          if test "${lt_cv_aix_libpath+set}" = set; then
  aix_libpath=$lt_cv_aix_libpath
else
  if ${lt_cv_aix_libpath__CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :

  lt_aix_libpath_sed='
      /Import File Strings/,/^$/ {
	  /^0/ {
	      s/^0  *\([^ ]*\) *$/\1/
	      p
	  }
      }'
  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  # Check for a 64-bit object if we didn't find anything.
  if test -z "$lt_cv_aix_libpath__CXX"; then
    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  fi
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
  if test -z "$lt_cv_aix_libpath__CXX"; then
    lt_cv_aix_libpath__CXX="/usr/lib:/lib"
  fi

fi

  aix_libpath=$lt_cv_aix_libpath__CXX
fi

          hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"

          archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
        else
          if test "$host_cpu" = ia64; then
	    hardcode_libdir_flag_spec_CXX='${wl}-R $libdir:/usr/lib:/lib'
	    allow_undefined_flag_CXX="-z nodefs"
	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
          else
	    # Determine the default libpath from the value encoded in an
	    # empty executable.
	    if test "${lt_cv_aix_libpath+set}" = set; then
  aix_libpath=$lt_cv_aix_libpath
else
  if ${lt_cv_aix_libpath__CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :

  lt_aix_libpath_sed='
      /Import File Strings/,/^$/ {
	  /^0/ {
	      s/^0  *\([^ ]*\) *$/\1/
	      p
	  }
      }'
  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  # Check for a 64-bit object if we didn't find anything.
  if test -z "$lt_cv_aix_libpath__CXX"; then
    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
  fi
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
  if test -z "$lt_cv_aix_libpath__CXX"; then
    lt_cv_aix_libpath__CXX="/usr/lib:/lib"
  fi

fi

  aix_libpath=$lt_cv_aix_libpath__CXX
fi

	    hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
	    # Warning - without using the other run time loading flags,
	    # -berok will link without error, but may produce a broken library.
	    no_undefined_flag_CXX=' ${wl}-bernotok'
	    allow_undefined_flag_CXX=' ${wl}-berok'
	    if test "$with_gnu_ld" = yes; then
	      # We only use this code for GNU lds that support --whole-archive.
	      whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
	    else
	      # Exported symbols can be pulled into shared objects from archives
	      whole_archive_flag_spec_CXX='$convenience'
	    fi
	    archive_cmds_need_lc_CXX=yes
	    # This is similar to how AIX traditionally builds its shared
	    # libraries.
	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
          fi
        fi
        ;;

      beos*)
	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
	  allow_undefined_flag_CXX=unsupported
	  # Joseph Beckenbach  says some releases of gcc
	  # support --undefined.  This deserves some investigation.  FIXME
	  archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	else
	  ld_shlibs_CXX=no
	fi
	;;

      chorus*)
        case $cc_basename in
          *)
	  # FIXME: insert proper C++ library support
	  ld_shlibs_CXX=no
	  ;;
        esac
        ;;

      cygwin* | mingw* | pw32* | cegcc*)
	case $GXX,$cc_basename in
	,cl* | no,cl*)
	  # Native MSVC
	  # hardcode_libdir_flag_spec is actually meaningless, as there is
	  # no search path for DLLs.
	  hardcode_libdir_flag_spec_CXX=' '
	  allow_undefined_flag_CXX=unsupported
	  always_export_symbols_CXX=yes
	  file_list_spec_CXX='@'
	  # Tell ltmain to make .lib files, not .a files.
	  libext=lib
	  # Tell ltmain to make .dll files, not .so files.
	  shrext_cmds=".dll"
	  # FIXME: Setting linknames here is a bad hack.
	  archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
	  archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
	      $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
	    else
	      $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
	    fi~
	    $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
	    linknames='
	  # The linker will not automatically build a static lib if we build a DLL.
	  # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true'
	  enable_shared_with_static_runtimes_CXX=yes
	  # Don't use ranlib
	  old_postinstall_cmds_CXX='chmod 644 $oldlib'
	  postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~
	    lt_tool_outputfile="@TOOL_OUTPUT@"~
	    case $lt_outputfile in
	      *.exe|*.EXE) ;;
	      *)
		lt_outputfile="$lt_outputfile.exe"
		lt_tool_outputfile="$lt_tool_outputfile.exe"
		;;
	    esac~
	    func_to_tool_file "$lt_outputfile"~
	    if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
	      $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
	      $RM "$lt_outputfile.manifest";
	    fi'
	  ;;
	*)
	  # g++
	  # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
	  # as there is no search path for DLLs.
	  hardcode_libdir_flag_spec_CXX='-L$libdir'
	  export_dynamic_flag_spec_CXX='${wl}--export-all-symbols'
	  allow_undefined_flag_CXX=unsupported
	  always_export_symbols_CXX=no
	  enable_shared_with_static_runtimes_CXX=yes

	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
	    archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
	    # If the export-symbols file already is a .def file (1st line
	    # is EXPORTS), use it as is; otherwise, prepend...
	    archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
	      cp $export_symbols $output_objdir/$soname.def;
	    else
	      echo EXPORTS > $output_objdir/$soname.def;
	      cat $export_symbols >> $output_objdir/$soname.def;
	    fi~
	    $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
	  else
	    ld_shlibs_CXX=no
	  fi
	  ;;
	esac
	;;
      darwin* | rhapsody*)


  archive_cmds_need_lc_CXX=no
  hardcode_direct_CXX=no
  hardcode_automatic_CXX=yes
  hardcode_shlibpath_var_CXX=unsupported
  if test "$lt_cv_ld_force_load" = "yes"; then
    whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'

  else
    whole_archive_flag_spec_CXX=''
  fi
  link_all_deplibs_CXX=yes
  allow_undefined_flag_CXX="$_lt_dar_allow_undefined"
  case $cc_basename in
     ifort*) _lt_dar_can_shared=yes ;;
     *) _lt_dar_can_shared=$GCC ;;
  esac
  if test "$_lt_dar_can_shared" = "yes"; then
    output_verbose_link_cmd=func_echo_all
    archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
    module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
    archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
    module_expsym_cmds_CXX="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
       if test "$lt_cv_apple_cc_single_mod" != "yes"; then
      archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
      archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
    fi

  else
  ld_shlibs_CXX=no
  fi

	;;

      dgux*)
        case $cc_basename in
          ec++*)
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
          ghcx*)
	    # Green Hills C++ Compiler
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
          *)
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
        esac
        ;;

      freebsd2.*)
        # C++ shared libraries reported to be fairly broken before
	# switch to ELF
        ld_shlibs_CXX=no
        ;;

      freebsd-elf*)
        archive_cmds_need_lc_CXX=no
        ;;

      freebsd* | dragonfly*)
        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
        # conventions
        ld_shlibs_CXX=yes
        ;;

      haiku*)
        archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
        link_all_deplibs_CXX=yes
        ;;

      hpux9*)
        hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
        hardcode_libdir_separator_CXX=:
        export_dynamic_flag_spec_CXX='${wl}-E'
        hardcode_direct_CXX=yes
        hardcode_minus_L_CXX=yes # Not in the search PATH,
				             # but as the default
				             # location of the library.

        case $cc_basename in
          CC*)
            # FIXME: insert proper C++ library support
            ld_shlibs_CXX=no
            ;;
          aCC*)
            archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
            # Commands to make compiler produce verbose output that lists
            # what "hidden" libraries, object files and flags are used when
            # linking a shared library.
            #
            # There doesn't appear to be a way to prevent this compiler from
            # explicitly linking system object files so we need to strip them
            # from the output so that they don't get included in the library
            # dependencies.
            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
            ;;
          *)
            if test "$GXX" = yes; then
              archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
            else
              # FIXME: insert proper C++ library support
              ld_shlibs_CXX=no
            fi
            ;;
        esac
        ;;

      hpux10*|hpux11*)
        if test $with_gnu_ld = no; then
	  hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
	  hardcode_libdir_separator_CXX=:

          case $host_cpu in
            hppa*64*|ia64*)
              ;;
            *)
	      export_dynamic_flag_spec_CXX='${wl}-E'
              ;;
          esac
        fi
        case $host_cpu in
          hppa*64*|ia64*)
            hardcode_direct_CXX=no
            hardcode_shlibpath_var_CXX=no
            ;;
          *)
            hardcode_direct_CXX=yes
            hardcode_direct_absolute_CXX=yes
            hardcode_minus_L_CXX=yes # Not in the search PATH,
					         # but as the default
					         # location of the library.
            ;;
        esac

        case $cc_basename in
          CC*)
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
          aCC*)
	    case $host_cpu in
	      hppa*64*)
	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	        ;;
	      ia64*)
	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	        ;;
	      *)
	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	        ;;
	    esac
	    # Commands to make compiler produce verbose output that lists
	    # what "hidden" libraries, object files and flags are used when
	    # linking a shared library.
	    #
	    # There doesn't appear to be a way to prevent this compiler from
	    # explicitly linking system object files so we need to strip them
	    # from the output so that they don't get included in the library
	    # dependencies.
	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
	    ;;
          *)
	    if test "$GXX" = yes; then
	      if test $with_gnu_ld = no; then
	        case $host_cpu in
	          hppa*64*)
	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	            ;;
	          ia64*)
	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	            ;;
	          *)
	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	            ;;
	        esac
	      fi
	    else
	      # FIXME: insert proper C++ library support
	      ld_shlibs_CXX=no
	    fi
	    ;;
        esac
        ;;

      interix[3-9]*)
	hardcode_direct_CXX=no
	hardcode_shlibpath_var_CXX=no
	hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
	export_dynamic_flag_spec_CXX='${wl}-E'
	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
	# Instead, shared libraries are loaded at an image base (0x10000000 by
	# default) and relocated if they conflict, which is a slow very memory
	# consuming and fragmenting process.  To avoid this, we pick a random,
	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
	archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
	archive_expsym_cmds_CXX='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
	;;
      irix5* | irix6*)
        case $cc_basename in
          CC*)
	    # SGI C++
	    archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'

	    # Archives containing C++ object files must be created using
	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
	    # necessary to make sure instantiated templates are included
	    # in the archive.
	    old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
	    ;;
          *)
	    if test "$GXX" = yes; then
	      if test "$with_gnu_ld" = no; then
	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
	      else
	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib'
	      fi
	    fi
	    link_all_deplibs_CXX=yes
	    ;;
        esac
        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
        hardcode_libdir_separator_CXX=:
        inherit_rpath_CXX=yes
        ;;

      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
        case $cc_basename in
          KCC*)
	    # Kuck and Associates, Inc. (KAI) C++ Compiler

	    # KCC will only create a shared library if the output file
	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
	    # to its proper name (with version) after linking.
	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
	    archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
	    # Commands to make compiler produce verbose output that lists
	    # what "hidden" libraries, object files and flags are used when
	    # linking a shared library.
	    #
	    # There doesn't appear to be a way to prevent this compiler from
	    # explicitly linking system object files so we need to strip them
	    # from the output so that they don't get included in the library
	    # dependencies.
	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'

	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'

	    # Archives containing C++ object files must be created using
	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
	    old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
	    ;;
	  icpc* | ecpc* )
	    # Intel C++
	    with_gnu_ld=yes
	    # version 8.0 and above of icpc choke on multiply defined symbols
	    # if we add $predep_objects and $postdep_objects, however 7.1 and
	    # earlier do not add the objects themselves.
	    case `$CC -V 2>&1` in
	      *"Version 7."*)
	        archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
		archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
		;;
	      *)  # Version 8.0 or newer
	        tmp_idyn=
	        case $host_cpu in
		  ia64*) tmp_idyn=' -i_dynamic';;
		esac
	        archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
		archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
		;;
	    esac
	    archive_cmds_need_lc_CXX=no
	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
	    whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
	    ;;
          pgCC* | pgcpp*)
            # Portland Group C++ compiler
	    case `$CC -V` in
	    *pgCC\ [1-5].* | *pgcpp\ [1-5].*)
	      prelink_cmds_CXX='tpldir=Template.dir~
		rm -rf $tpldir~
		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
	      old_archive_cmds_CXX='tpldir=Template.dir~
		rm -rf $tpldir~
		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
		$RANLIB $oldlib'
	      archive_cmds_CXX='tpldir=Template.dir~
		rm -rf $tpldir~
		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
	      archive_expsym_cmds_CXX='tpldir=Template.dir~
		rm -rf $tpldir~
		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
	      ;;
	    *) # Version 6 and above use weak symbols
	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
	      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
	      ;;
	    esac

	    hardcode_libdir_flag_spec_CXX='${wl}--rpath ${wl}$libdir'
	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
	    whole_archive_flag_spec_CXX='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
            ;;
	  cxx*)
	    # Compaq C++
	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
	    archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'

	    runpath_var=LD_RUN_PATH
	    hardcode_libdir_flag_spec_CXX='-rpath $libdir'
	    hardcode_libdir_separator_CXX=:

	    # Commands to make compiler produce verbose output that lists
	    # what "hidden" libraries, object files and flags are used when
	    # linking a shared library.
	    #
	    # There doesn't appear to be a way to prevent this compiler from
	    # explicitly linking system object files so we need to strip them
	    # from the output so that they don't get included in the library
	    # dependencies.
	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
	    ;;
	  xl* | mpixl* | bgxl*)
	    # IBM XL 8.0 on PPC, with GNU ld
	    hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
	    archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
	    if test "x$supports_anon_versioning" = xyes; then
	      archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~
		cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
		echo "local: *; };" >> $output_objdir/$libname.ver~
		$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
	    fi
	    ;;
	  *)
	    case `$CC -V 2>&1 | sed 5q` in
	    *Sun\ C*)
	      # Sun C++ 5.9
	      no_undefined_flag_CXX=' -zdefs'
	      archive_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	      archive_expsym_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
	      hardcode_libdir_flag_spec_CXX='-R$libdir'
	      whole_archive_flag_spec_CXX='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
	      compiler_needs_object_CXX=yes

	      # Not sure whether something based on
	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
	      # would be better.
	      output_verbose_link_cmd='func_echo_all'

	      # Archives containing C++ object files must be created using
	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
	      # necessary to make sure instantiated templates are included
	      # in the archive.
	      old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
	      ;;
	    esac
	    ;;
	esac
	;;

      lynxos*)
        # FIXME: insert proper C++ library support
	ld_shlibs_CXX=no
	;;

      m88k*)
        # FIXME: insert proper C++ library support
        ld_shlibs_CXX=no
	;;

      mvs*)
        case $cc_basename in
          cxx*)
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
	  *)
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
	esac
	;;

      netbsd*)
        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
	  archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
	  wlarc=
	  hardcode_libdir_flag_spec_CXX='-R$libdir'
	  hardcode_direct_CXX=yes
	  hardcode_shlibpath_var_CXX=no
	fi
	# Workaround some broken pre-1.5 toolchains
	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
	;;

      *nto* | *qnx*)
        ld_shlibs_CXX=yes
	;;

      openbsd2*)
        # C++ shared libraries are fairly broken
	ld_shlibs_CXX=no
	;;

      openbsd*)
	if test -f /usr/libexec/ld.so; then
	  hardcode_direct_CXX=yes
	  hardcode_shlibpath_var_CXX=no
	  hardcode_direct_absolute_CXX=yes
	  archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
	  hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
	    archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
	    export_dynamic_flag_spec_CXX='${wl}-E'
	    whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
	  fi
	  output_verbose_link_cmd=func_echo_all
	else
	  ld_shlibs_CXX=no
	fi
	;;

      osf3* | osf4* | osf5*)
        case $cc_basename in
          KCC*)
	    # Kuck and Associates, Inc. (KAI) C++ Compiler

	    # KCC will only create a shared library if the output file
	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
	    # to its proper name (with version) after linking.
	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'

	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
	    hardcode_libdir_separator_CXX=:

	    # Archives containing C++ object files must be created using
	    # the KAI C++ compiler.
	    case $host in
	      osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;;
	      *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;;
	    esac
	    ;;
          RCC*)
	    # Rational C++ 2.4.1
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
          cxx*)
	    case $host in
	      osf3*)
	        allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
	        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
		;;
	      *)
	        allow_undefined_flag_CXX=' -expect_unresolved \*'
	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
	        archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
	          echo "-hidden">> $lib.exp~
	          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~
	          $RM $lib.exp'
	        hardcode_libdir_flag_spec_CXX='-rpath $libdir'
		;;
	    esac

	    hardcode_libdir_separator_CXX=:

	    # Commands to make compiler produce verbose output that lists
	    # what "hidden" libraries, object files and flags are used when
	    # linking a shared library.
	    #
	    # There doesn't appear to be a way to prevent this compiler from
	    # explicitly linking system object files so we need to strip them
	    # from the output so that they don't get included in the library
	    # dependencies.
	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
	    ;;
	  *)
	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
	      allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
	      case $host in
	        osf3*)
	          archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
		  ;;
	        *)
	          archive_cmds_CXX='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
		  ;;
	      esac

	      hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
	      hardcode_libdir_separator_CXX=:

	      # Commands to make compiler produce verbose output that lists
	      # what "hidden" libraries, object files and flags are used when
	      # linking a shared library.
	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'

	    else
	      # FIXME: insert proper C++ library support
	      ld_shlibs_CXX=no
	    fi
	    ;;
        esac
        ;;

      psos*)
        # FIXME: insert proper C++ library support
        ld_shlibs_CXX=no
        ;;

      sunos4*)
        case $cc_basename in
          CC*)
	    # Sun C++ 4.x
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
          lcc*)
	    # Lucid
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
          *)
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
        esac
        ;;

      solaris*)
        case $cc_basename in
          CC* | sunCC*)
	    # Sun C++ 4.2, 5.x and Centerline C++
            archive_cmds_need_lc_CXX=yes
	    no_undefined_flag_CXX=' -zdefs'
	    archive_cmds_CXX='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
	    archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
	      $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'

	    hardcode_libdir_flag_spec_CXX='-R$libdir'
	    hardcode_shlibpath_var_CXX=no
	    case $host_os in
	      solaris2.[0-5] | solaris2.[0-5].*) ;;
	      *)
		# The compiler driver will combine and reorder linker options,
		# but understands `-z linker_flag'.
	        # Supported since Solaris 2.6 (maybe 2.5.1?)
		whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract'
	        ;;
	    esac
	    link_all_deplibs_CXX=yes

	    output_verbose_link_cmd='func_echo_all'

	    # Archives containing C++ object files must be created using
	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
	    # necessary to make sure instantiated templates are included
	    # in the archive.
	    old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
	    ;;
          gcx*)
	    # Green Hills C++ Compiler
	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'

	    # The C++ compiler must be used to create the archive.
	    old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
	    ;;
          *)
	    # GNU C++ compiler with Solaris linker
	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
	      no_undefined_flag_CXX=' ${wl}-z ${wl}defs'
	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
		  $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'

	        # Commands to make compiler produce verbose output that lists
	        # what "hidden" libraries, object files and flags are used when
	        # linking a shared library.
	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
	      else
	        # g++ 2.7 appears to require `-G' NOT `-shared' on this
	        # platform.
	        archive_cmds_CXX='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
		  $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'

	        # Commands to make compiler produce verbose output that lists
	        # what "hidden" libraries, object files and flags are used when
	        # linking a shared library.
	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
	      fi

	      hardcode_libdir_flag_spec_CXX='${wl}-R $wl$libdir'
	      case $host_os in
		solaris2.[0-5] | solaris2.[0-5].*) ;;
		*)
		  whole_archive_flag_spec_CXX='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
		  ;;
	      esac
	    fi
	    ;;
        esac
        ;;

    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
      no_undefined_flag_CXX='${wl}-z,text'
      archive_cmds_need_lc_CXX=no
      hardcode_shlibpath_var_CXX=no
      runpath_var='LD_RUN_PATH'

      case $cc_basename in
        CC*)
	  archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	  archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
	*)
	  archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	  archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	  ;;
      esac
      ;;

      sysv5* | sco3.2v5* | sco5v6*)
	# Note: We can NOT use -z defs as we might desire, because we do not
	# link with -lc, and that would cause any symbols used from libc to
	# always be unresolved, which means just about no library would
	# ever link correctly.  If we're not using GNU ld we use -z text
	# though, which does catch some bad symbols but isn't as heavy-handed
	# as -z defs.
	no_undefined_flag_CXX='${wl}-z,text'
	allow_undefined_flag_CXX='${wl}-z,nodefs'
	archive_cmds_need_lc_CXX=no
	hardcode_shlibpath_var_CXX=no
	hardcode_libdir_flag_spec_CXX='${wl}-R,$libdir'
	hardcode_libdir_separator_CXX=':'
	link_all_deplibs_CXX=yes
	export_dynamic_flag_spec_CXX='${wl}-Bexport'
	runpath_var='LD_RUN_PATH'

	case $cc_basename in
          CC*)
	    archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	    archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	    old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~
	      '"$old_archive_cmds_CXX"
	    reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~
	      '"$reload_cmds_CXX"
	    ;;
	  *)
	    archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	    archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
	    ;;
	esac
      ;;

      tandem*)
        case $cc_basename in
          NCC*)
	    # NonStop-UX NCC 3.20
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
          *)
	    # FIXME: insert proper C++ library support
	    ld_shlibs_CXX=no
	    ;;
        esac
        ;;

      vxworks*)
        # FIXME: insert proper C++ library support
        ld_shlibs_CXX=no
        ;;

      *)
        # FIXME: insert proper C++ library support
        ld_shlibs_CXX=no
        ;;
    esac

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
$as_echo "$ld_shlibs_CXX" >&6; }
    test "$ld_shlibs_CXX" = no && can_build_shared=no

    GCC_CXX="$GXX"
    LD_CXX="$LD"

    ## CAVEAT EMPTOR:
    ## There is no encapsulation within the following macros, do not change
    ## the running order or otherwise move them around unless you know exactly
    ## what you are doing...
    # Dependencies to place before and after the object being linked:
predep_objects_CXX=
postdep_objects_CXX=
predeps_CXX=
postdeps_CXX=
compiler_lib_search_path_CXX=

cat > conftest.$ac_ext <<_LT_EOF
class Foo
{
public:
  Foo (void) { a = 0; }
private:
  int a;
};
_LT_EOF


_lt_libdeps_save_CFLAGS=$CFLAGS
case "$CC $CFLAGS " in #(
*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
esac

if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then
  # Parse the compiler output and extract the necessary
  # objects, libraries and library flags.

  # Sentinel used to keep track of whether or not we are before
  # the conftest object file.
  pre_test_object_deps_done=no

  for p in `eval "$output_verbose_link_cmd"`; do
    case ${prev}${p} in

    -L* | -R* | -l*)
       # Some compilers place space between "-{L,R}" and the path.
       # Remove the space.
       if test $p = "-L" ||
          test $p = "-R"; then
	 prev=$p
	 continue
       fi

       # Expand the sysroot to ease extracting the directories later.
       if test -z "$prev"; then
         case $p in
         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
         esac
       fi
       case $p in
       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
       esac
       if test "$pre_test_object_deps_done" = no; then
	 case ${prev} in
	 -L | -R)
	   # Internal compiler library paths should come after those
	   # provided the user.  The postdeps already come after the
	   # user supplied libs so there is no need to process them.
	   if test -z "$compiler_lib_search_path_CXX"; then
	     compiler_lib_search_path_CXX="${prev}${p}"
	   else
	     compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} ${prev}${p}"
	   fi
	   ;;
	 # The "-l" case would never come before the object being
	 # linked, so don't bother handling this case.
	 esac
       else
	 if test -z "$postdeps_CXX"; then
	   postdeps_CXX="${prev}${p}"
	 else
	   postdeps_CXX="${postdeps_CXX} ${prev}${p}"
	 fi
       fi
       prev=
       ;;

    *.lto.$objext) ;; # Ignore GCC LTO objects
    *.$objext)
       # This assumes that the test object file only shows up
       # once in the compiler output.
       if test "$p" = "conftest.$objext"; then
	 pre_test_object_deps_done=yes
	 continue
       fi

       if test "$pre_test_object_deps_done" = no; then
	 if test -z "$predep_objects_CXX"; then
	   predep_objects_CXX="$p"
	 else
	   predep_objects_CXX="$predep_objects_CXX $p"
	 fi
       else
	 if test -z "$postdep_objects_CXX"; then
	   postdep_objects_CXX="$p"
	 else
	   postdep_objects_CXX="$postdep_objects_CXX $p"
	 fi
       fi
       ;;

    *) ;; # Ignore the rest.

    esac
  done

  # Clean up.
  rm -f a.out a.exe
else
  echo "libtool.m4: error: problem compiling CXX test program"
fi

$RM -f confest.$objext
CFLAGS=$_lt_libdeps_save_CFLAGS

# PORTME: override above test on systems where it is broken
case $host_os in
interix[3-9]*)
  # Interix 3.5 installs completely hosed .la files for C++, so rather than
  # hack all around it, let's just trust "g++" to DTRT.
  predep_objects_CXX=
  postdep_objects_CXX=
  postdeps_CXX=
  ;;

linux*)
  case `$CC -V 2>&1 | sed 5q` in
  *Sun\ C*)
    # Sun C++ 5.9

    # The more standards-conforming stlport4 library is
    # incompatible with the Cstd library. Avoid specifying
    # it if it's in CXXFLAGS. Ignore libCrun as
    # -library=stlport4 depends on it.
    case " $CXX $CXXFLAGS " in
    *" -library=stlport4 "*)
      solaris_use_stlport4=yes
      ;;
    esac

    if test "$solaris_use_stlport4" != yes; then
      postdeps_CXX='-library=Cstd -library=Crun'
    fi
    ;;
  esac
  ;;

solaris*)
  case $cc_basename in
  CC* | sunCC*)
    # The more standards-conforming stlport4 library is
    # incompatible with the Cstd library. Avoid specifying
    # it if it's in CXXFLAGS. Ignore libCrun as
    # -library=stlport4 depends on it.
    case " $CXX $CXXFLAGS " in
    *" -library=stlport4 "*)
      solaris_use_stlport4=yes
      ;;
    esac

    # Adding this requires a known-good setup of shared libraries for
    # Sun compiler versions before 5.6, else PIC objects from an old
    # archive will be linked into the output, leading to subtle bugs.
    if test "$solaris_use_stlport4" != yes; then
      postdeps_CXX='-library=Cstd -library=Crun'
    fi
    ;;
  esac
  ;;
esac


case " $postdeps_CXX " in
*" -lc "*) archive_cmds_need_lc_CXX=no ;;
esac
 compiler_lib_search_dirs_CXX=
if test -n "${compiler_lib_search_path_CXX}"; then
 compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
fi































    lt_prog_compiler_wl_CXX=
lt_prog_compiler_pic_CXX=
lt_prog_compiler_static_CXX=


  # C++ specific cases for pic, static, wl, etc.
  if test "$GXX" = yes; then
    lt_prog_compiler_wl_CXX='-Wl,'
    lt_prog_compiler_static_CXX='-static'

    case $host_os in
    aix*)
      # All AIX code is PIC.
      if test "$host_cpu" = ia64; then
	# AIX 5 now supports IA64 processor
	lt_prog_compiler_static_CXX='-Bstatic'
      fi
      ;;

    amigaos*)
      case $host_cpu in
      powerpc)
            # see comment about AmigaOS4 .so support
            lt_prog_compiler_pic_CXX='-fPIC'
        ;;
      m68k)
            # FIXME: we need at least 68020 code to build shared libraries, but
            # adding the `-m68020' flag to GCC prevents building anything better,
            # like `-m68040'.
            lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
        ;;
      esac
      ;;

    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
      # PIC is the default for these OSes.
      ;;
    mingw* | cygwin* | os2* | pw32* | cegcc*)
      # This hack is so that the source file can tell whether it is being
      # built for inclusion in a dll (and should export symbols for example).
      # Although the cygwin gcc ignores -fPIC, still need this for old-style
      # (--disable-auto-import) libraries
      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
      ;;
    darwin* | rhapsody*)
      # PIC is the default on this platform
      # Common symbols not allowed in MH_DYLIB files
      lt_prog_compiler_pic_CXX='-fno-common'
      ;;
    *djgpp*)
      # DJGPP does not support shared libraries at all
      lt_prog_compiler_pic_CXX=
      ;;
    haiku*)
      # PIC is the default for Haiku.
      # The "-static" flag exists, but is broken.
      lt_prog_compiler_static_CXX=
      ;;
    interix[3-9]*)
      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
      # Instead, we relocate shared libraries at runtime.
      ;;
    sysv4*MP*)
      if test -d /usr/nec; then
	lt_prog_compiler_pic_CXX=-Kconform_pic
      fi
      ;;
    hpux*)
      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
      # sets the default TLS model and affects inlining.
      case $host_cpu in
      hppa*64*)
	;;
      *)
	lt_prog_compiler_pic_CXX='-fPIC'
	;;
      esac
      ;;
    *qnx* | *nto*)
      # QNX uses GNU C++, but need to define -shared option too, otherwise
      # it will coredump.
      lt_prog_compiler_pic_CXX='-fPIC -shared'
      ;;
    *)
      lt_prog_compiler_pic_CXX='-fPIC'
      ;;
    esac
  else
    case $host_os in
      aix[4-9]*)
	# All AIX code is PIC.
	if test "$host_cpu" = ia64; then
	  # AIX 5 now supports IA64 processor
	  lt_prog_compiler_static_CXX='-Bstatic'
	else
	  lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
	fi
	;;
      chorus*)
	case $cc_basename in
	cxch68*)
	  # Green Hills C++ Compiler
	  # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
	  ;;
	esac
	;;
      mingw* | cygwin* | os2* | pw32* | cegcc*)
	# This hack is so that the source file can tell whether it is being
	# built for inclusion in a dll (and should export symbols for example).
	lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
	;;
      dgux*)
	case $cc_basename in
	  ec++*)
	    lt_prog_compiler_pic_CXX='-KPIC'
	    ;;
	  ghcx*)
	    # Green Hills C++ Compiler
	    lt_prog_compiler_pic_CXX='-pic'
	    ;;
	  *)
	    ;;
	esac
	;;
      freebsd* | dragonfly*)
	# FreeBSD uses GNU C++
	;;
      hpux9* | hpux10* | hpux11*)
	case $cc_basename in
	  CC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
	    if test "$host_cpu" != ia64; then
	      lt_prog_compiler_pic_CXX='+Z'
	    fi
	    ;;
	  aCC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
	    case $host_cpu in
	    hppa*64*|ia64*)
	      # +Z the default
	      ;;
	    *)
	      lt_prog_compiler_pic_CXX='+Z'
	      ;;
	    esac
	    ;;
	  *)
	    ;;
	esac
	;;
      interix*)
	# This is c89, which is MS Visual C++ (no shared libs)
	# Anyone wants to do a port?
	;;
      irix5* | irix6* | nonstopux*)
	case $cc_basename in
	  CC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_static_CXX='-non_shared'
	    # CC pic flag -KPIC is the default.
	    ;;
	  *)
	    ;;
	esac
	;;
      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
	case $cc_basename in
	  KCC*)
	    # KAI C++ Compiler
	    lt_prog_compiler_wl_CXX='--backend -Wl,'
	    lt_prog_compiler_pic_CXX='-fPIC'
	    ;;
	  ecpc* )
	    # old Intel C++ for x86_64 which still supported -KPIC.
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-KPIC'
	    lt_prog_compiler_static_CXX='-static'
	    ;;
	  icpc* )
	    # Intel C++, used to be incompatible with GCC.
	    # ICC 10 doesn't accept -KPIC any more.
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-fPIC'
	    lt_prog_compiler_static_CXX='-static'
	    ;;
	  pgCC* | pgcpp*)
	    # Portland Group C++ compiler
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-fpic'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    ;;
	  cxx*)
	    # Compaq C++
	    # Make sure the PIC flag is empty.  It appears that all Alpha
	    # Linux and Compaq Tru64 Unix objects are PIC.
	    lt_prog_compiler_pic_CXX=
	    lt_prog_compiler_static_CXX='-non_shared'
	    ;;
	  xlc* | xlC* | bgxl[cC]* | mpixl[cC]*)
	    # IBM XL 8.0, 9.0 on PPC and BlueGene
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-qpic'
	    lt_prog_compiler_static_CXX='-qstaticlink'
	    ;;
	  *)
	    case `$CC -V 2>&1 | sed 5q` in
	    *Sun\ C*)
	      # Sun C++ 5.9
	      lt_prog_compiler_pic_CXX='-KPIC'
	      lt_prog_compiler_static_CXX='-Bstatic'
	      lt_prog_compiler_wl_CXX='-Qoption ld '
	      ;;
	    esac
	    ;;
	esac
	;;
      lynxos*)
	;;
      m88k*)
	;;
      mvs*)
	case $cc_basename in
	  cxx*)
	    lt_prog_compiler_pic_CXX='-W c,exportall'
	    ;;
	  *)
	    ;;
	esac
	;;
      netbsd* | netbsdelf*-gnu)
	;;
      *qnx* | *nto*)
        # QNX uses GNU C++, but need to define -shared option too, otherwise
        # it will coredump.
        lt_prog_compiler_pic_CXX='-fPIC -shared'
        ;;
      osf3* | osf4* | osf5*)
	case $cc_basename in
	  KCC*)
	    lt_prog_compiler_wl_CXX='--backend -Wl,'
	    ;;
	  RCC*)
	    # Rational C++ 2.4.1
	    lt_prog_compiler_pic_CXX='-pic'
	    ;;
	  cxx*)
	    # Digital/Compaq C++
	    lt_prog_compiler_wl_CXX='-Wl,'
	    # Make sure the PIC flag is empty.  It appears that all Alpha
	    # Linux and Compaq Tru64 Unix objects are PIC.
	    lt_prog_compiler_pic_CXX=
	    lt_prog_compiler_static_CXX='-non_shared'
	    ;;
	  *)
	    ;;
	esac
	;;
      psos*)
	;;
      solaris*)
	case $cc_basename in
	  CC* | sunCC*)
	    # Sun C++ 4.2, 5.x and Centerline C++
	    lt_prog_compiler_pic_CXX='-KPIC'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    lt_prog_compiler_wl_CXX='-Qoption ld '
	    ;;
	  gcx*)
	    # Green Hills C++ Compiler
	    lt_prog_compiler_pic_CXX='-PIC'
	    ;;
	  *)
	    ;;
	esac
	;;
      sunos4*)
	case $cc_basename in
	  CC*)
	    # Sun C++ 4.x
	    lt_prog_compiler_pic_CXX='-pic'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    ;;
	  lcc*)
	    # Lucid
	    lt_prog_compiler_pic_CXX='-pic'
	    ;;
	  *)
	    ;;
	esac
	;;
      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
	case $cc_basename in
	  CC*)
	    lt_prog_compiler_wl_CXX='-Wl,'
	    lt_prog_compiler_pic_CXX='-KPIC'
	    lt_prog_compiler_static_CXX='-Bstatic'
	    ;;
	esac
	;;
      tandem*)
	case $cc_basename in
	  NCC*)
	    # NonStop-UX NCC 3.20
	    lt_prog_compiler_pic_CXX='-KPIC'
	    ;;
	  *)
	    ;;
	esac
	;;
      vxworks*)
	;;
      *)
	lt_prog_compiler_can_build_shared_CXX=no
	;;
    esac
  fi

case $host_os in
  # For platforms which do not support PIC, -DPIC is meaningless:
  *djgpp*)
    lt_prog_compiler_pic_CXX=
    ;;
  *)
    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
    ;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
if ${lt_cv_prog_compiler_pic_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; }
lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX

#
# Check to make sure the PIC flag actually works.
#
if test -n "$lt_prog_compiler_pic_CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
if ${lt_cv_prog_compiler_pic_works_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_pic_works_CXX=no
   ac_outfile=conftest.$ac_objext
   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
   lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   # The option is referenced via a variable to avoid confusing sed.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>conftest.err)
   ac_status=$?
   cat conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s "$ac_outfile"; then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings other than the usual output.
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_pic_works_CXX=yes
     fi
   fi
   $RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
$as_echo "$lt_cv_prog_compiler_pic_works_CXX" >&6; }

if test x"$lt_cv_prog_compiler_pic_works_CXX" = xyes; then
    case $lt_prog_compiler_pic_CXX in
     "" | " "*) ;;
     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
     esac
else
    lt_prog_compiler_pic_CXX=
     lt_prog_compiler_can_build_shared_CXX=no
fi

fi





#
# Check to make sure the static flag actually works.
#
wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
if ${lt_cv_prog_compiler_static_works_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_static_works_CXX=no
   save_LDFLAGS="$LDFLAGS"
   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
   echo "$lt_simple_link_test_code" > conftest.$ac_ext
   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
     # The linker can only warn and ignore the option if not recognized
     # So say no if there are warnings
     if test -s conftest.err; then
       # Append any errors to the config.log.
       cat conftest.err 1>&5
       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
       if diff conftest.exp conftest.er2 >/dev/null; then
         lt_cv_prog_compiler_static_works_CXX=yes
       fi
     else
       lt_cv_prog_compiler_static_works_CXX=yes
     fi
   fi
   $RM -r conftest*
   LDFLAGS="$save_LDFLAGS"

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
$as_echo "$lt_cv_prog_compiler_static_works_CXX" >&6; }

if test x"$lt_cv_prog_compiler_static_works_CXX" = xyes; then
    :
else
    lt_prog_compiler_static_CXX=
fi




    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_c_o_CXX=no
   $RM -r conftest 2>/dev/null
   mkdir conftest
   cd conftest
   mkdir out
   echo "$lt_simple_compile_test_code" > conftest.$ac_ext

   lt_compiler_flag="-o out/conftest2.$ac_objext"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_c_o_CXX=yes
     fi
   fi
   chmod u+w . 2>&5
   $RM conftest*
   # SGI C++ compiler will create directory out/ii_files/ for
   # template instantiation
   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
   $RM out/* && rmdir out
   cd ..
   $RM -r conftest
   $RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }



    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_prog_compiler_c_o_CXX=no
   $RM -r conftest 2>/dev/null
   mkdir conftest
   cd conftest
   mkdir out
   echo "$lt_simple_compile_test_code" > conftest.$ac_ext

   lt_compiler_flag="-o out/conftest2.$ac_objext"
   # Insert the option either (1) after the last *FLAGS variable, or
   # (2) before a word containing "conftest.", or (3) at the end.
   # Note that $ac_compile itself does not contain backslashes and begins
   # with a dollar sign (not a hyphen), so the echo should work correctly.
   lt_compile=`echo "$ac_compile" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&5
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   if (exit $ac_status) && test -s out/conftest2.$ac_objext
   then
     # The compiler can only warn and ignore the option if not recognized
     # So say no if there are warnings
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
       lt_cv_prog_compiler_c_o_CXX=yes
     fi
   fi
   chmod u+w . 2>&5
   $RM conftest*
   # SGI C++ compiler will create directory out/ii_files/ for
   # template instantiation
   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
   $RM out/* && rmdir out
   cd ..
   $RM -r conftest
   $RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }




hard_links="nottested"
if test "$lt_cv_prog_compiler_c_o_CXX" = no && test "$need_locks" != no; then
  # do not overwrite the value of need_locks provided by the user
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
$as_echo_n "checking if we can lock with hard links... " >&6; }
  hard_links=yes
  $RM conftest*
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  touch conftest.a
  ln conftest.a conftest.b 2>&5 || hard_links=no
  ln conftest.a conftest.b 2>/dev/null && hard_links=no
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
$as_echo "$hard_links" >&6; }
  if test "$hard_links" = no; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
    need_locks=warn
  fi
else
  need_locks=no
fi



    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }

  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
  exclude_expsyms_CXX='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
  case $host_os in
  aix[4-9]*)
    # If we're using GNU nm, then we don't want the "-C" option.
    # -C means demangle to AIX nm, but means don't demangle with GNU nm
    # Also, AIX nm treats weak defined symbols like other global defined
    # symbols, whereas GNU nm marks them as "W".
    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
    else
      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
    fi
    ;;
  pw32*)
    export_symbols_cmds_CXX="$ltdll_cmds"
    ;;
  cygwin* | mingw* | cegcc*)
    case $cc_basename in
    cl*)
      exclude_expsyms_CXX='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
      ;;
    *)
      export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
      exclude_expsyms_CXX='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
      ;;
    esac
    ;;
  linux* | k*bsd*-gnu | gnu*)
    link_all_deplibs_CXX=no
    ;;
  *)
    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
    ;;
  esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
$as_echo "$ld_shlibs_CXX" >&6; }
test "$ld_shlibs_CXX" = no && can_build_shared=no

with_gnu_ld_CXX=$with_gnu_ld






#
# Do we need to explicitly link libc?
#
case "x$archive_cmds_need_lc_CXX" in
x|xyes)
  # Assume -lc should be added
  archive_cmds_need_lc_CXX=yes

  if test "$enable_shared" = yes && test "$GCC" = yes; then
    case $archive_cmds_CXX in
    *'~'*)
      # FIXME: we may have to deal with multi-command sequences.
      ;;
    '$CC '*)
      # Test whether the compiler implicitly links with -lc since on some
      # systems, -lgcc has to come before -lc. If gcc already passes -lc
      # to ld, don't add -lc before -lgcc.
      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
if ${lt_cv_archive_cmds_need_lc_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  $RM conftest*
	echo "$lt_simple_compile_test_code" > conftest.$ac_ext

	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
  (eval $ac_compile) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } 2>conftest.err; then
	  soname=conftest
	  lib=conftest
	  libobjs=conftest.$ac_objext
	  deplibs=
	  wl=$lt_prog_compiler_wl_CXX
	  pic_flag=$lt_prog_compiler_pic_CXX
	  compiler_flags=-v
	  linker_flags=-v
	  verstring=
	  output_objdir=.
	  libname=conftest
	  lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
	  allow_undefined_flag_CXX=
	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
  (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
	  then
	    lt_cv_archive_cmds_need_lc_CXX=no
	  else
	    lt_cv_archive_cmds_need_lc_CXX=yes
	  fi
	  allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
	else
	  cat conftest.err 1>&5
	fi
	$RM conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
$as_echo "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
      archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
      ;;
    esac
  fi
  ;;
esac






























































    { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
$as_echo_n "checking dynamic linker characteristics... " >&6; }

library_names_spec=
libname_spec='lib$name'
soname_spec=
shrext_cmds=".so"
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
shlibpath_overrides_runpath=unknown
version_type=none
dynamic_linker="$host_os ld.so"
sys_lib_dlsearch_path_spec="/lib /usr/lib"
need_lib_prefix=unknown
hardcode_into_libs=no

# when you set need_version to no, make sure it does not cause -set_version
# flags to be left without arguments
need_version=unknown

case $host_os in
aix3*)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
  shlibpath_var=LIBPATH

  # AIX 3 has no versioning support, so we append a major version to the name.
  soname_spec='${libname}${release}${shared_ext}$major'
  ;;

aix[4-9]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  hardcode_into_libs=yes
  if test "$host_cpu" = ia64; then
    # AIX 5 supports IA64
    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
    shlibpath_var=LD_LIBRARY_PATH
  else
    # With GCC up to 2.95.x, collect2 would create an import file
    # for dependence libraries.  The import file would start with
    # the line `#! .'.  This would cause the generated library to
    # depend on `.', always an invalid library.  This was fixed in
    # development snapshots of GCC prior to 3.0.
    case $host_os in
      aix4 | aix4.[01] | aix4.[01].*)
      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
	   echo ' yes '
	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
	:
      else
	can_build_shared=no
      fi
      ;;
    esac
    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
    # soname into executable. Probably we can add versioning support to
    # collect2, so additional links can be useful in future.
    if test "$aix_use_runtimelinking" = yes; then
      # If using run time linking (on AIX 4.2 or later) use lib.so
      # instead of lib.a to let people know that these are not
      # typical AIX shared libraries.
      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    else
      # We preserve .a as extension for shared libraries through AIX4.2
      # and later when we are not doing run time linking.
      library_names_spec='${libname}${release}.a $libname.a'
      soname_spec='${libname}${release}${shared_ext}$major'
    fi
    shlibpath_var=LIBPATH
  fi
  ;;

amigaos*)
  case $host_cpu in
  powerpc)
    # Since July 2007 AmigaOS4 officially supports .so libraries.
    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    ;;
  m68k)
    library_names_spec='$libname.ixlibrary $libname.a'
    # Create ${libname}_ixlibrary.a entries in /sys/libs.
    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
    ;;
  esac
  ;;

beos*)
  library_names_spec='${libname}${shared_ext}'
  dynamic_linker="$host_os ld.so"
  shlibpath_var=LIBRARY_PATH
  ;;

bsdi[45]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
  # the default ld.so.conf also contains /usr/contrib/lib and
  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
  # libtool to hard-code these into programs
  ;;

cygwin* | mingw* | pw32* | cegcc*)
  version_type=windows
  shrext_cmds=".dll"
  need_version=no
  need_lib_prefix=no

  case $GCC,$cc_basename in
  yes,*)
    # gcc
    library_names_spec='$libname.dll.a'
    # DLL is installed to $(libdir)/../bin by postinstall_cmds
    postinstall_cmds='base_file=`basename \${file}`~
      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
      dldir=$destdir/`dirname \$dlpath`~
      test -d \$dldir || mkdir -p \$dldir~
      $install_prog $dir/$dlname \$dldir/$dlname~
      chmod a+x \$dldir/$dlname~
      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
      fi'
    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
      dlpath=$dir/\$dldll~
       $RM \$dlpath'
    shlibpath_overrides_runpath=yes

    case $host_os in
    cygwin*)
      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'

      ;;
    mingw* | cegcc*)
      # MinGW DLLs use traditional 'lib' prefix
      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
      ;;
    pw32*)
      # pw32 DLLs use 'pw' prefix rather than 'lib'
      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
      ;;
    esac
    dynamic_linker='Win32 ld.exe'
    ;;

  *,cl*)
    # Native MSVC
    libname_spec='$name'
    soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
    library_names_spec='${libname}.dll.lib'

    case $build_os in
    mingw*)
      sys_lib_search_path_spec=
      lt_save_ifs=$IFS
      IFS=';'
      for lt_path in $LIB
      do
        IFS=$lt_save_ifs
        # Let DOS variable expansion print the short 8.3 style file name.
        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
      done
      IFS=$lt_save_ifs
      # Convert to MSYS style.
      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
      ;;
    cygwin*)
      # Convert to unix form, then to dos form, then back to unix form
      # but this time dos style (no spaces!) so that the unix form looks
      # like /cygdrive/c/PROGRA~1:/cygdr...
      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
      ;;
    *)
      sys_lib_search_path_spec="$LIB"
      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
        # It is most probably a Windows format PATH.
        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
      else
        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
      fi
      # FIXME: find the short name or the path components, as spaces are
      # common. (e.g. "Program Files" -> "PROGRA~1")
      ;;
    esac

    # DLL is installed to $(libdir)/../bin by postinstall_cmds
    postinstall_cmds='base_file=`basename \${file}`~
      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
      dldir=$destdir/`dirname \$dlpath`~
      test -d \$dldir || mkdir -p \$dldir~
      $install_prog $dir/$dlname \$dldir/$dlname'
    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
      dlpath=$dir/\$dldll~
       $RM \$dlpath'
    shlibpath_overrides_runpath=yes
    dynamic_linker='Win32 link.exe'
    ;;

  *)
    # Assume MSVC wrapper
    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
    dynamic_linker='Win32 ld.exe'
    ;;
  esac
  # FIXME: first we should search . and the directory the executable is in
  shlibpath_var=PATH
  ;;

darwin* | rhapsody*)
  dynamic_linker="$host_os dyld"
  version_type=darwin
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
  soname_spec='${libname}${release}${major}$shared_ext'
  shlibpath_overrides_runpath=yes
  shlibpath_var=DYLD_LIBRARY_PATH
  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'

  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
  ;;

dgux*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

freebsd* | dragonfly*)
  # DragonFly does not have aout.  When/if they implement a new
  # versioning mechanism, adjust this.
  if test -x /usr/bin/objformat; then
    objformat=`/usr/bin/objformat`
  else
    case $host_os in
    freebsd[23].*) objformat=aout ;;
    *) objformat=elf ;;
    esac
  fi
  version_type=freebsd-$objformat
  case $version_type in
    freebsd-elf*)
      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
      need_version=no
      need_lib_prefix=no
      ;;
    freebsd-*)
      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
      need_version=yes
      ;;
  esac
  shlibpath_var=LD_LIBRARY_PATH
  case $host_os in
  freebsd2.*)
    shlibpath_overrides_runpath=yes
    ;;
  freebsd3.[01]* | freebsdelf3.[01]*)
    shlibpath_overrides_runpath=yes
    hardcode_into_libs=yes
    ;;
  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
    shlibpath_overrides_runpath=no
    hardcode_into_libs=yes
    ;;
  *) # from 4.6 on, and DragonFly
    shlibpath_overrides_runpath=yes
    hardcode_into_libs=yes
    ;;
  esac
  ;;

haiku*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  dynamic_linker="$host_os runtime_loader"
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
  hardcode_into_libs=yes
  ;;

hpux9* | hpux10* | hpux11*)
  # Give a soname corresponding to the major version so that dld.sl refuses to
  # link against other versions.
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  case $host_cpu in
  ia64*)
    shrext_cmds='.so'
    hardcode_into_libs=yes
    dynamic_linker="$host_os dld.so"
    shlibpath_var=LD_LIBRARY_PATH
    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    if test "X$HPUX_IA64_MODE" = X32; then
      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
    else
      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
    fi
    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
    ;;
  hppa*64*)
    shrext_cmds='.sl'
    hardcode_into_libs=yes
    dynamic_linker="$host_os dld.sl"
    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
    ;;
  *)
    shrext_cmds='.sl'
    dynamic_linker="$host_os dld.sl"
    shlibpath_var=SHLIB_PATH
    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    ;;
  esac
  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
  postinstall_cmds='chmod 555 $lib'
  # or fails outright, so override atomically:
  install_override_mode=555
  ;;

interix[3-9]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  ;;

irix5* | irix6* | nonstopux*)
  case $host_os in
    nonstopux*) version_type=nonstopux ;;
    *)
	if test "$lt_cv_prog_gnu_ld" = yes; then
		version_type=linux # correct to gnu/linux during the next big refactor
	else
		version_type=irix
	fi ;;
  esac
  need_lib_prefix=no
  need_version=no
  soname_spec='${libname}${release}${shared_ext}$major'
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
  case $host_os in
  irix5* | nonstopux*)
    libsuff= shlibsuff=
    ;;
  *)
    case $LD in # libtool.m4 will add one of these switches to LD
    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
      libsuff= shlibsuff= libmagic=32-bit;;
    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
      libsuff=32 shlibsuff=N32 libmagic=N32;;
    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
      libsuff=64 shlibsuff=64 libmagic=64-bit;;
    *) libsuff= shlibsuff= libmagic=never-match;;
    esac
    ;;
  esac
  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
  shlibpath_overrides_runpath=no
  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
  hardcode_into_libs=yes
  ;;

# No shared lib support for Linux oldld, aout, or coff.
linux*oldld* | linux*aout* | linux*coff*)
  dynamic_linker=no
  ;;

# This must be glibc/ELF.
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no

  # Some binutils ld are patched to set DT_RUNPATH
  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
  $as_echo_n "(cached) " >&6
else
  lt_cv_shlibpath_overrides_runpath=no
    save_LDFLAGS=$LDFLAGS
    save_libdir=$libdir
    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\""
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
  lt_cv_shlibpath_overrides_runpath=yes
fi
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    LDFLAGS=$save_LDFLAGS
    libdir=$save_libdir

fi

  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath

  # This implies no fast_install, which is unacceptable.
  # Some rework will be needed to allow for fast_install
  # before this can be enabled.
  hardcode_into_libs=yes

  # Append ld.so.conf contents to the search path
  if test -f /etc/ld.so.conf; then
    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
  fi

  # We used to test for /lib/ld.so.1 and disable shared libraries on
  # powerpc, because MkLinux only supported shared libraries with the
  # GNU dynamic linker.  Since this was broken with cross compilers,
  # most powerpc-linux boxes support dynamic linking these days and
  # people can always --disable-shared, the test was removed, and we
  # assume the GNU/Linux dynamic linker is in use.
  dynamic_linker='GNU/Linux ld.so'
  ;;

netbsdelf*-gnu)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  dynamic_linker='NetBSD ld.elf_so'
  ;;

netbsd*)
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
    dynamic_linker='NetBSD (a.out) ld.so'
  else
    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
    soname_spec='${libname}${release}${shared_ext}$major'
    dynamic_linker='NetBSD ld.elf_so'
  fi
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  ;;

newsos6)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  ;;

*nto* | *qnx*)
  version_type=qnx
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  dynamic_linker='ldqnx.so'
  ;;

openbsd*)
  version_type=sunos
  sys_lib_dlsearch_path_spec="/usr/lib"
  need_lib_prefix=no
  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
  case $host_os in
    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
    *)				need_version=no  ;;
  esac
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
    case $host_os in
      openbsd2.[89] | openbsd2.[89].*)
	shlibpath_overrides_runpath=no
	;;
      *)
	shlibpath_overrides_runpath=yes
	;;
      esac
  else
    shlibpath_overrides_runpath=yes
  fi
  ;;

os2*)
  libname_spec='$name'
  shrext_cmds=".dll"
  need_lib_prefix=no
  library_names_spec='$libname${shared_ext} $libname.a'
  dynamic_linker='OS/2 ld.exe'
  shlibpath_var=LIBPATH
  ;;

osf3* | osf4* | osf5*)
  version_type=osf
  need_lib_prefix=no
  need_version=no
  soname_spec='${libname}${release}${shared_ext}$major'
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
  ;;

rdos*)
  dynamic_linker=no
  ;;

solaris*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  # ldd complains unless libraries are executable
  postinstall_cmds='chmod +x $lib'
  ;;

sunos4*)
  version_type=sunos
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  if test "$with_gnu_ld" = yes; then
    need_lib_prefix=no
  fi
  need_version=yes
  ;;

sysv4 | sysv4.3*)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  case $host_vendor in
    sni)
      shlibpath_overrides_runpath=no
      need_lib_prefix=no
      runpath_var=LD_RUN_PATH
      ;;
    siemens)
      need_lib_prefix=no
      ;;
    motorola)
      need_lib_prefix=no
      need_version=no
      shlibpath_overrides_runpath=no
      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
      ;;
  esac
  ;;

sysv4*MP*)
  if test -d /usr/nec ;then
    version_type=linux # correct to gnu/linux during the next big refactor
    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
    soname_spec='$libname${shared_ext}.$major'
    shlibpath_var=LD_LIBRARY_PATH
  fi
  ;;

sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
  version_type=freebsd-elf
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  if test "$with_gnu_ld" = yes; then
    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
  else
    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
    case $host_os in
      sco3.2v5*)
        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
	;;
    esac
  fi
  sys_lib_dlsearch_path_spec='/usr/lib'
  ;;

tpf*)
  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  ;;

uts4*)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

*)
  dynamic_linker=no
  ;;
esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
$as_echo "$dynamic_linker" >&6; }
test "$dynamic_linker" = no && can_build_shared=no

variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
if test "$GCC" = yes; then
  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
fi

if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
fi
if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
fi






































    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
hardcode_action_CXX=
if test -n "$hardcode_libdir_flag_spec_CXX" ||
   test -n "$runpath_var_CXX" ||
   test "X$hardcode_automatic_CXX" = "Xyes" ; then

  # We can hardcode non-existent directories.
  if test "$hardcode_direct_CXX" != no &&
     # If the only mechanism to avoid hardcoding is shlibpath_var, we
     # have to relink, otherwise we might link with an installed library
     # when we should be linking with a yet-to-be-installed one
     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" != no &&
     test "$hardcode_minus_L_CXX" != no; then
    # Linking always hardcodes the temporary library directory.
    hardcode_action_CXX=relink
  else
    # We can link without hardcoding, and we can hardcode nonexisting dirs.
    hardcode_action_CXX=immediate
  fi
else
  # We cannot hardcode anything, or else we can only hardcode existing
  # directories.
  hardcode_action_CXX=unsupported
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
$as_echo "$hardcode_action_CXX" >&6; }

if test "$hardcode_action_CXX" = relink ||
   test "$inherit_rpath_CXX" = yes; then
  # Fast installation is not supported
  enable_fast_install=no
elif test "$shlibpath_overrides_runpath" = yes ||
     test "$enable_shared" = no; then
  # Fast installation is not necessary
  enable_fast_install=needless
fi







  fi # test -n "$compiler"

  CC=$lt_save_CC
  CFLAGS=$lt_save_CFLAGS
  LDCXX=$LD
  LD=$lt_save_LD
  GCC=$lt_save_GCC
  with_gnu_ld=$lt_save_with_gnu_ld
  lt_cv_path_LDCXX=$lt_cv_path_LD
  lt_cv_path_LD=$lt_save_path_LD
  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
fi # test "$_lt_caught_CXX_error" != yes

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu















        ac_config_commands="$ac_config_commands libtool"




# Only expand once:



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
$as_echo_n "checking for inline... " >&6; }
if ${ac_cv_c_inline+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_c_inline=no
for ac_kw in inline __inline__ __inline; do
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifndef __cplusplus
typedef int foo_t;
static $ac_kw foo_t static_foo () {return 0; }
$ac_kw foo_t foo () {return 0; }
#endif

_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_c_inline=$ac_kw
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  test "$ac_cv_c_inline" != no && break
done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
$as_echo "$ac_cv_c_inline" >&6; }

case $ac_cv_c_inline in
  inline | yes) ;;
  *)
    case $ac_cv_c_inline in
      no) ac_val=;;
      *) ac_val=$ac_cv_c_inline;;
    esac
    cat >>confdefs.h <<_ACEOF
#ifndef __cplusplus
#define inline $ac_val
#endif
_ACEOF
    ;;
esac


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __attribute__" >&5
$as_echo_n "checking for __attribute__... " >&6; }
  if ${ac_cv___attribute__+:} false; then :
  $as_echo_n "(cached) " >&6
else

    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
       static void foo(void) __attribute__ ((unused));
       void foo(void) { exit(1); }
int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv___attribute__=yes
else
  ac_cv___attribute__=no

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi

  if test "$ac_cv___attribute__" = "yes"; then

$as_echo "#define HAVE___ATTRIBUTE__ 1" >>confdefs.h

  fi
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv___attribute__" >&5
$as_echo "$ac_cv___attribute__" >&6; }


# Check whether some low-level functions/files are available
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
if ${ac_cv_header_stdc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
#include 
#include 
#include 

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_header_stdc=yes
else
  ac_cv_header_stdc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then :
  :
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
#include 
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
		   (('a' <= (c) && (c) <= 'i') \
		     || ('j' <= (c) && (c) <= 'r') \
		     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
	|| toupper (i) != TOUPPER (i))
      return 2;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :

else
  ac_cv_header_stdc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
$as_echo "$ac_cv_header_stdc" >&6; }
if test $ac_cv_header_stdc = yes; then

$as_echo "#define STDC_HEADERS 1" >>confdefs.h

fi


# TODO(csilvers): we could remove a lot when WITH_CPU_PROFILER etc is "no".
ac_fn_c_check_type "$LINENO" "__int64" "ac_cv_type___int64" "$ac_includes_default"
if test "x$ac_cv_type___int64" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE___INT64 1
_ACEOF


fi
       # defined in some windows platforms
ac_fn_c_check_type "$LINENO" "struct mallinfo" "ac_cv_type_struct_mallinfo" "#include 
"
if test "x$ac_cv_type_struct_mallinfo" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_MALLINFO 1
_ACEOF


fi

ac_fn_c_check_type "$LINENO" "Elf32_Versym" "ac_cv_type_Elf32_Versym" "#include 
"
if test "x$ac_cv_type_Elf32_Versym" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_ELF32_VERSYM 1
_ACEOF


fi
   # for vdso_support.h
for ac_func in sbrk
do :
  ac_fn_c_check_func "$LINENO" "sbrk" "ac_cv_func_sbrk"
if test "x$ac_cv_func_sbrk" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SBRK 1
_ACEOF

fi
done
            # for tcmalloc to get memory
for ac_func in geteuid
do :
  ac_fn_c_check_func "$LINENO" "geteuid" "ac_cv_func_geteuid"
if test "x$ac_cv_func_geteuid" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_GETEUID 1
_ACEOF

fi
done
         # for turning off services when run as root
for ac_func in fork
do :
  ac_fn_c_check_func "$LINENO" "fork" "ac_cv_func_fork"
if test "x$ac_cv_func_fork" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_FORK 1
_ACEOF

fi
done
            # for the pthread_atfork setup
for ac_header in features.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "features.h" "ac_cv_header_features_h" "$ac_includes_default"
if test "x$ac_cv_header_features_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_FEATURES_H 1
_ACEOF

fi

done
    # for vdso_support.h
for ac_header in malloc.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "malloc.h" "ac_cv_header_malloc_h" "$ac_includes_default"
if test "x$ac_cv_header_malloc_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_MALLOC_H 1
_ACEOF

fi

done
      # some systems define stuff there, others not
for ac_header in sys/malloc.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/malloc.h" "ac_cv_header_sys_malloc_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_malloc_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_MALLOC_H 1
_ACEOF

fi

done
  # where some versions of OS X put malloc.h
for ac_header in malloc/malloc.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "malloc/malloc.h" "ac_cv_header_malloc_malloc_h" "$ac_includes_default"
if test "x$ac_cv_header_malloc_malloc_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_MALLOC_MALLOC_H 1
_ACEOF

fi

done
  # another place OS X puts malloc.h (?)
for ac_header in glob.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "glob.h" "ac_cv_header_glob_h" "$ac_includes_default"
if test "x$ac_cv_header_glob_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_GLOB_H 1
_ACEOF

fi

done
        # for heap-profile-table (cleaning up profiles)
for ac_header in execinfo.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "execinfo.h" "ac_cv_header_execinfo_h" "$ac_includes_default"
if test "x$ac_cv_header_execinfo_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_EXECINFO_H 1
_ACEOF

fi

done
    # for stacktrace? and heapchecker_unittest
for ac_header in unwind.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "unwind.h" "ac_cv_header_unwind_h" "$ac_includes_default"
if test "x$ac_cv_header_unwind_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_UNWIND_H 1
_ACEOF

fi

done
      # for stacktrace
for ac_header in sched.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sched.h" "ac_cv_header_sched_h" "$ac_includes_default"
if test "x$ac_cv_header_sched_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SCHED_H 1
_ACEOF

fi

done
       # for being nice in our spinlock code
for ac_header in conflict-signal.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "conflict-signal.h" "ac_cv_header_conflict_signal_h" "$ac_includes_default"
if test "x$ac_cv_header_conflict_signal_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_CONFLICT_SIGNAL_H 1
_ACEOF

fi

done
      # defined on some windows platforms?
for ac_header in sys/prctl.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/prctl.h" "ac_cv_header_sys_prctl_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_prctl_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_PRCTL_H 1
_ACEOF

fi

done
   # for thread_lister (needed by leak-checker)
for ac_header in linux/ptrace.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "linux/ptrace.h" "ac_cv_header_linux_ptrace_h" "$ac_includes_default"
if test "x$ac_cv_header_linux_ptrace_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LINUX_PTRACE_H 1
_ACEOF

fi

done
# also needed by leak-checker
for ac_header in sys/syscall.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/syscall.h" "ac_cv_header_sys_syscall_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_syscall_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_SYSCALL_H 1
_ACEOF

fi

done

for ac_header in sys/socket.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/socket.h" "ac_cv_header_sys_socket_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_socket_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_SOCKET_H 1
_ACEOF

fi

done
  # optional; for forking out to symbolizer
for ac_header in sys/wait.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/wait.h" "ac_cv_header_sys_wait_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_wait_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_WAIT_H 1
_ACEOF

fi

done
    # optional; for forking out to symbolizer
for ac_header in poll.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "poll.h" "ac_cv_header_poll_h" "$ac_includes_default"
if test "x$ac_cv_header_poll_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_POLL_H 1
_ACEOF

fi

done
        # optional; for forking out to symbolizer
for ac_header in fcntl.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "fcntl.h" "ac_cv_header_fcntl_h" "$ac_includes_default"
if test "x$ac_cv_header_fcntl_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_FCNTL_H 1
_ACEOF

fi

done
       # for tcmalloc_unittest
for ac_header in grp.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "grp.h" "ac_cv_header_grp_h" "$ac_includes_default"
if test "x$ac_cv_header_grp_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_GRP_H 1
_ACEOF

fi

done
         # for heapchecker_unittest
for ac_header in pwd.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "pwd.h" "ac_cv_header_pwd_h" "$ac_includes_default"
if test "x$ac_cv_header_pwd_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_PWD_H 1
_ACEOF

fi

done
         # for heapchecker_unittest
for ac_header in sys/resource.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/resource.h" "ac_cv_header_sys_resource_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_resource_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_RESOURCE_H 1
_ACEOF

fi

done
         # for memalign_unittest.cc
for ac_header in valgrind.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "valgrind.h" "ac_cv_header_valgrind_h" "$ac_includes_default"
if test "x$ac_cv_header_valgrind_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_VALGRIND_H 1
_ACEOF

fi

done
    # we have a local copy if this isn't found
for ac_header in sys/cdefs.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/cdefs.h" "ac_cv_header_sys_cdefs_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_cdefs_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_CDEFS_H 1
_ACEOF

fi

done
   # Where glibc defines __THROW
for ac_header in features.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "features.h" "ac_cv_header_features_h" "$ac_includes_default"
if test "x$ac_cv_header_features_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_FEATURES_H 1
_ACEOF

fi

done
    # Where __GLIBC__ is defined
# We also need /, but we get those from
# AC_PC_FROM_UCONTEXT, below.

# We override a lot of memory allocation routines, not all of which are
# standard.  For those the system doesn't declare, we'll declare ourselves.
ac_fn_c_check_decl "$LINENO" "cfree" "ac_cv_have_decl_cfree" "#define _XOPEN_SOURCE 600
                #include 
                #include 
"
if test "x$ac_cv_have_decl_cfree" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_CFREE $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "posix_memalign" "ac_cv_have_decl_posix_memalign" "#define _XOPEN_SOURCE 600
                #include 
                #include 
"
if test "x$ac_cv_have_decl_posix_memalign" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_POSIX_MEMALIGN $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "memalign" "ac_cv_have_decl_memalign" "#define _XOPEN_SOURCE 600
                #include 
                #include 
"
if test "x$ac_cv_have_decl_memalign" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_MEMALIGN $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "valloc" "ac_cv_have_decl_valloc" "#define _XOPEN_SOURCE 600
                #include 
                #include 
"
if test "x$ac_cv_have_decl_valloc" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_VALLOC $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "pvalloc" "ac_cv_have_decl_pvalloc" "#define _XOPEN_SOURCE 600
                #include 
                #include 
"
if test "x$ac_cv_have_decl_pvalloc" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_PVALLOC $ac_have_decl
_ACEOF


if test "$ac_cv_type_struct_mallinfo" = yes; then
  ac_cv_have_struct_mallinfo=1
   # gperftools/tcmalloc.h needs this
else
  ac_cv_have_struct_mallinfo=0

fi

# We need to check for mmap.  cygwin supports mmap, but the autoconf
# test doesn't work on cygwin:
#    http://www.cygwin.com/ml/cygwin/2002-04/msg00412.html
# This workaround comes from
#    http://cygwin.com/ml/cygwin/2004-11/msg00138.html
case "$host" in
  *-*-mingw*)
                                                            ;;
  *-*-cygwin*)
	       ac_cv_func_mmap_fixed_mapped=yes

$as_echo "#define HAVE_MMAP 1" >>confdefs.h

               ;;
            *) if test "$cross_compiling" = yes; then
                 ac_cv_func_mmap_fixed_mapped=yes

$as_echo "#define HAVE_MMAP 1" >>confdefs.h

               else



  for ac_header in $ac_header_list
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done








for ac_func in getpagesize
do :
  ac_fn_c_check_func "$LINENO" "getpagesize" "ac_cv_func_getpagesize"
if test "x$ac_cv_func_getpagesize" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_GETPAGESIZE 1
_ACEOF

fi
done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working mmap" >&5
$as_echo_n "checking for working mmap... " >&6; }
if ${ac_cv_func_mmap_fixed_mapped+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test "$cross_compiling" = yes; then :
  ac_cv_func_mmap_fixed_mapped=no
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_includes_default
/* malloc might have been renamed as rpl_malloc. */
#undef malloc

/* Thanks to Mike Haertel and Jim Avera for this test.
   Here is a matrix of mmap possibilities:
	mmap private not fixed
	mmap private fixed at somewhere currently unmapped
	mmap private fixed at somewhere already mapped
	mmap shared not fixed
	mmap shared fixed at somewhere currently unmapped
	mmap shared fixed at somewhere already mapped
   For private mappings, we should verify that changes cannot be read()
   back from the file, nor mmap's back from the file at a different
   address.  (There have been systems where private was not correctly
   implemented like the infamous i386 svr4.0, and systems where the
   VM page cache was not coherent with the file system buffer cache
   like early versions of FreeBSD and possibly contemporary NetBSD.)
   For shared mappings, we should conversely verify that changes get
   propagated back to all the places they're supposed to be.

   Grep wants private fixed already mapped.
   The main things grep needs to know about mmap are:
   * does it exist and is it safe to write into the mmap'd area
   * how to use it (BSD variants)  */

#include 
#include 

#if !defined STDC_HEADERS && !defined HAVE_STDLIB_H
char *malloc ();
#endif

/* This mess was copied from the GNU getpagesize.h.  */
#ifndef HAVE_GETPAGESIZE
# ifdef _SC_PAGESIZE
#  define getpagesize() sysconf(_SC_PAGESIZE)
# else /* no _SC_PAGESIZE */
#  ifdef HAVE_SYS_PARAM_H
#   include 
#   ifdef EXEC_PAGESIZE
#    define getpagesize() EXEC_PAGESIZE
#   else /* no EXEC_PAGESIZE */
#    ifdef NBPG
#     define getpagesize() NBPG * CLSIZE
#     ifndef CLSIZE
#      define CLSIZE 1
#     endif /* no CLSIZE */
#    else /* no NBPG */
#     ifdef NBPC
#      define getpagesize() NBPC
#     else /* no NBPC */
#      ifdef PAGESIZE
#       define getpagesize() PAGESIZE
#      endif /* PAGESIZE */
#     endif /* no NBPC */
#    endif /* no NBPG */
#   endif /* no EXEC_PAGESIZE */
#  else /* no HAVE_SYS_PARAM_H */
#   define getpagesize() 8192	/* punt totally */
#  endif /* no HAVE_SYS_PARAM_H */
# endif /* no _SC_PAGESIZE */

#endif /* no HAVE_GETPAGESIZE */

int
main ()
{
  char *data, *data2, *data3;
  const char *cdata2;
  int i, pagesize;
  int fd, fd2;

  pagesize = getpagesize ();

  /* First, make a file with some known garbage in it. */
  data = (char *) malloc (pagesize);
  if (!data)
    return 1;
  for (i = 0; i < pagesize; ++i)
    *(data + i) = rand ();
  umask (0);
  fd = creat ("conftest.mmap", 0600);
  if (fd < 0)
    return 2;
  if (write (fd, data, pagesize) != pagesize)
    return 3;
  close (fd);

  /* Next, check that the tail of a page is zero-filled.  File must have
     non-zero length, otherwise we risk SIGBUS for entire page.  */
  fd2 = open ("conftest.txt", O_RDWR | O_CREAT | O_TRUNC, 0600);
  if (fd2 < 0)
    return 4;
  cdata2 = "";
  if (write (fd2, cdata2, 1) != 1)
    return 5;
  data2 = (char *) mmap (0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd2, 0L);
  if (data2 == MAP_FAILED)
    return 6;
  for (i = 0; i < pagesize; ++i)
    if (*(data2 + i))
      return 7;
  close (fd2);
  if (munmap (data2, pagesize))
    return 8;

  /* Next, try to mmap the file at a fixed address which already has
     something else allocated at it.  If we can, also make sure that
     we see the same garbage.  */
  fd = open ("conftest.mmap", O_RDWR);
  if (fd < 0)
    return 9;
  if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE,
		     MAP_PRIVATE | MAP_FIXED, fd, 0L))
    return 10;
  for (i = 0; i < pagesize; ++i)
    if (*(data + i) != *(data2 + i))
      return 11;

  /* Finally, make sure that changes to the mapped area do not
     percolate back to the file as seen by read().  (This is a bug on
     some variants of i386 svr4.0.)  */
  for (i = 0; i < pagesize; ++i)
    *(data2 + i) = *(data2 + i) + 1;
  data3 = (char *) malloc (pagesize);
  if (!data3)
    return 12;
  if (read (fd, data3, pagesize) != pagesize)
    return 13;
  for (i = 0; i < pagesize; ++i)
    if (*(data + i) != *(data3 + i))
      return 14;
  close (fd);
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  ac_cv_func_mmap_fixed_mapped=yes
else
  ac_cv_func_mmap_fixed_mapped=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_mmap_fixed_mapped" >&5
$as_echo "$ac_cv_func_mmap_fixed_mapped" >&6; }
if test $ac_cv_func_mmap_fixed_mapped = yes; then

$as_echo "#define HAVE_MMAP 1" >>confdefs.h

fi
rm -f conftest.mmap conftest.txt

               fi
               ;;
esac

# If AtomicWord != Atomic32, we need to define two versions of all the
# atomicops functions.  If they're the same, we want to define only one.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if int32_t is the same type as intptr_t" >&5
$as_echo_n "checking if int32_t is the same type as intptr_t... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
int32_t v1 = 0; intptr_t v2 = 0; return (&v1 - &v2)
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

$as_echo "#define INT32_EQUALS_INTPTR 1" >>confdefs.h

                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

# We want to access the "PC" (Program Counter) register from a struct
# ucontext.  Every system has its own way of doing that.  We try all the
# possibilities we know about.  Note REG_PC should come first (REG_RIP
# is also defined on solaris, but does the wrong thing).  But don't
# bother if we're not doing cpu-profiling.
# [*] means that we've not actually tested one of these systems
if test "$enable_cpu_profiler" = yes; then
  for ac_header in ucontext.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "ucontext.h" "ac_cv_header_ucontext_h" "$ac_includes_default"
if test "x$ac_cv_header_ucontext_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_UCONTEXT_H 1
_ACEOF

fi

done

   # Redhat 7 has , but it barfs if we #include it directly
   # (this was fixed in later redhats).   works fine, so use that.
   if grep "Red Hat Linux release 7" /etc/redhat-release >/dev/null 2>&1; then

$as_echo "#define HAVE_SYS_UCONTEXT_H 0" >>confdefs.h

     ac_cv_header_sys_ucontext_h=no
   else
     for ac_header in sys/ucontext.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/ucontext.h" "ac_cv_header_sys_ucontext_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_ucontext_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_UCONTEXT_H 1
_ACEOF

fi

done
       # ucontext on OS X 10.6 (at least)
   fi
   for ac_header in cygwin/signal.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "cygwin/signal.h" "ac_cv_header_cygwin_signal_h" "$ac_includes_default"
if test "x$ac_cv_header_cygwin_signal_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_CYGWIN_SIGNAL_H 1
_ACEOF

fi

done
        # ucontext on cywgin
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to access the program counter from a struct ucontext" >&5
$as_echo_n "checking how to access the program counter from a struct ucontext... " >&6; }
   pc_fields="           uc_mcontext.gregs[REG_PC]"  # Solaris x86 (32 + 64 bit)
   pc_fields="$pc_fields uc_mcontext.gregs[REG_EIP]" # Linux (i386)
   pc_fields="$pc_fields uc_mcontext.gregs[REG_RIP]" # Linux (x86_64)
   pc_fields="$pc_fields uc_mcontext.sc_ip"            # Linux (ia64)
   pc_fields="$pc_fields uc_mcontext.pc"               # Linux (mips)
   pc_fields="$pc_fields uc_mcontext.uc_regs->gregs[PT_NIP]" # Linux (ppc)
   pc_fields="$pc_fields uc_mcontext.gregs[R15]"     # Linux (arm old [untested])
   pc_fields="$pc_fields uc_mcontext.arm_pc"           # Linux (arm arch 5)
   pc_fields="$pc_fields uc_mcontext.gp_regs[PT_NIP]"  # Suse SLES 11 (ppc64)
   pc_fields="$pc_fields uc_mcontext.mc_eip"           # FreeBSD (i386)
   pc_fields="$pc_fields uc_mcontext.mc_rip"           # FreeBSD (x86_64 [untested])
   pc_fields="$pc_fields uc_mcontext.__gregs[_REG_EIP]"  # NetBSD (i386)
   pc_fields="$pc_fields uc_mcontext.__gregs[_REG_RIP]"  # NetBSD (x86_64)
   pc_fields="$pc_fields uc_mcontext->ss.eip"          # OS X (i386, <=10.4)
   pc_fields="$pc_fields uc_mcontext->__ss.__eip"      # OS X (i386, >=10.5)
   pc_fields="$pc_fields uc_mcontext->ss.rip"          # OS X (x86_64)
   pc_fields="$pc_fields uc_mcontext->__ss.__rip"      # OS X (>=10.5 [untested])
   pc_fields="$pc_fields uc_mcontext->ss.srr0"         # OS X (ppc, ppc64 [untested])
   pc_fields="$pc_fields uc_mcontext->__ss.__srr0"     # OS X (>=10.5 [untested])
   pc_field_found=false
   for pc_field in $pc_fields; do
     if ! $pc_field_found; then
       # Prefer sys/ucontext.h to ucontext.h, for OS X's sake.
       if test "x$ac_cv_header_cygwin_signal_h" = xyes; then
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define _GNU_SOURCE 1
                         #include 
int
main ()
{
ucontext_t u; return u.$pc_field == 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

cat >>confdefs.h <<_ACEOF
#define PC_FROM_UCONTEXT $pc_field
_ACEOF

                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
$as_echo "$pc_field" >&6; }
                        pc_field_found=true
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       elif test "x$ac_cv_header_sys_ucontext_h" = xyes; then
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define _GNU_SOURCE 1
                         #include 
int
main ()
{
ucontext_t u; return u.$pc_field == 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

cat >>confdefs.h <<_ACEOF
#define PC_FROM_UCONTEXT $pc_field
_ACEOF

                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
$as_echo "$pc_field" >&6; }
                        pc_field_found=true
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       elif test "x$ac_cv_header_ucontext_h" = xyes; then
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define _GNU_SOURCE 1
                         #include 
int
main ()
{
ucontext_t u; return u.$pc_field == 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

cat >>confdefs.h <<_ACEOF
#define PC_FROM_UCONTEXT $pc_field
_ACEOF

                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
$as_echo "$pc_field" >&6; }
                        pc_field_found=true
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       else     # hope some standard header gives it to us
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
ucontext_t u; return u.$pc_field == 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

cat >>confdefs.h <<_ACEOF
#define PC_FROM_UCONTEXT $pc_field
_ACEOF

                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
$as_echo "$pc_field" >&6; }
                        pc_field_found=true
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       fi
     fi
   done
   if ! $pc_field_found; then
     pc_fields="           sc_eip"  # OpenBSD (i386)
     pc_fields="$pc_fields sc_rip"  # OpenBSD (x86_64)
     for pc_field in $pc_fields; do
       if ! $pc_field_found; then
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
ucontext_t u; return u.$pc_field == 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

cat >>confdefs.h <<_ACEOF
#define PC_FROM_UCONTEXT $pc_field
_ACEOF

                        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5
$as_echo "$pc_field" >&6; }
                        pc_field_found=true
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
       fi
     done
   fi
   if ! $pc_field_found; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Could not find the PC.  Will not try to compile libprofiler..." >&5
$as_echo "$as_me: WARNING: Could not find the PC.  Will not try to compile libprofiler..." >&2;};
                      enable_cpu_profiler=no
   fi
fi

# Some tests test the behavior of .so files, and only make sense for dynamic.
 if test "$enable_static" = yes; then
  ENABLE_STATIC_TRUE=
  ENABLE_STATIC_FALSE='#'
else
  ENABLE_STATIC_TRUE='#'
  ENABLE_STATIC_FALSE=
fi


# We want to link in libunwind or libexecinfo if it it is enabled and exists.
if test "$enable_libunwind" = yes; then
  for ac_header in libunwind.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "libunwind.h" "ac_cv_header_libunwind_h" "$ac_includes_default"
if test "x$ac_cv_header_libunwind_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBUNWIND_H 1
_ACEOF

fi

done
   # for stacktrace
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for backtrace in -lunwind" >&5
$as_echo_n "checking for backtrace in -lunwind... " >&6; }
if ${ac_cv_lib_unwind_backtrace+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lunwind  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char backtrace ();
int
main ()
{
return backtrace ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_unwind_backtrace=yes
else
  ac_cv_lib_unwind_backtrace=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_unwind_backtrace" >&5
$as_echo "$ac_cv_lib_unwind_backtrace" >&6; }
if test "x$ac_cv_lib_unwind_backtrace" = xyes; then :
  UNWIND_LIBS=-lunwind
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for backtrace in -lexecinfo" >&5
$as_echo_n "checking for backtrace in -lexecinfo... " >&6; }
if ${ac_cv_lib_execinfo_backtrace+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lexecinfo  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char backtrace ();
int
main ()
{
return backtrace ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_execinfo_backtrace=yes
else
  ac_cv_lib_execinfo_backtrace=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_execinfo_backtrace" >&5
$as_echo "$ac_cv_lib_execinfo_backtrace" >&6; }
if test "x$ac_cv_lib_execinfo_backtrace" = xyes; then :
  UNWIND_LIBS=-lexecinfo
else
  UNWIND_LIBS=
fi

fi


else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for backtrace in -lexecinfo" >&5
$as_echo_n "checking for backtrace in -lexecinfo... " >&6; }
if ${ac_cv_lib_execinfo_backtrace+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lexecinfo  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char backtrace ();
int
main ()
{
return backtrace ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_execinfo_backtrace=yes
else
  ac_cv_lib_execinfo_backtrace=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_execinfo_backtrace" >&5
$as_echo "$ac_cv_lib_execinfo_backtrace" >&6; }
if test "x$ac_cv_lib_execinfo_backtrace" = xyes; then :
  UNWIND_LIBS=-lexecinfo
else
  UNWIND_LIBS=
fi


fi

# On x86_64, instead of libunwind, we can choose to compile with frame-pointers.
# Check whether --enable-frame_pointers was given.
if test "${enable_frame_pointers+set}" = set; then :
  enableval=$enable_frame_pointers;
else
  enable_frame_pointers=no
fi

 if test "$enable_frame_pointers" = yes; then
  ENABLE_FRAME_POINTERS_TRUE=
  ENABLE_FRAME_POINTERS_FALSE='#'
else
  ENABLE_FRAME_POINTERS_TRUE='#'
  ENABLE_FRAME_POINTERS_FALSE=
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for x86 without frame pointers" >&5
$as_echo_n "checking for x86 without frame pointers... " >&6; }
# Some x86_64 systems do not insert frame pointers by default.
# We want to see if the current system is one of those.
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return __x86_64__ == 1 ? 0 : 1
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  is_x86_64=yes
else
  is_x86_64=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -S -O2 -o fp.s"
# This test will always fail because we don't name our output file properly.
# We do our own determination of success/failure in the grep, below.
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
int f(int x) {return x;}
int
main ()
{
return f(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  :
else
  :
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
x86_no_fp_by_default=no
if test "$is_x86_64" = yes && ! grep 'mov.*rsp.*rbp' fp.s >/dev/null 2>&1; then :
  x86_no_fp_by_default=yes
fi
 if test "$x86_no_fp_by_default" = yes; then
  X86_64_AND_NO_FP_BY_DEFAULT_TRUE=
  X86_64_AND_NO_FP_BY_DEFAULT_FALSE='#'
else
  X86_64_AND_NO_FP_BY_DEFAULT_TRUE='#'
  X86_64_AND_NO_FP_BY_DEFAULT_FALSE=
fi

rm fp.s
CFLAGS="$OLD_CFLAGS"
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $x86_no_fp_by_default" >&5
$as_echo "$x86_no_fp_by_default" >&6; }


# We need to know if we're i386 so we can turn on -mmms, which is not
# on by default for i386 (it is for x86_64).
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return __i386__ == 1 ? 0 : 1
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  is_i386=yes
else
  is_i386=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 if test "$is_i386" = yes; then
  I386_TRUE=
  I386_FALSE='#'
else
  I386_TRUE='#'
  I386_FALSE=
fi


# See if the compiler supports -Wno-unused-result.
# Newer ubuntu's turn on -D_FORTIFY_SOURCE=2, enabling
# __attribute__((warn_unused_result)) for things like write(),
# which we don't care about.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -Wno-unused-result" >&5
$as_echo_n "checking if the compiler supports -Wno-unused-result... " >&6; }
if ${perftools_cv_w_no_unused_result+:} false; then :
  $as_echo_n "(cached) " >&6
else
  OLD_CFLAGS="$CFLAGS"
	        CFLAGS="$CFLAGS -Wno-error -Wno-unused-result"
		# gcc doesn't warn about unknown flags unless it's
		# also warning for some other purpose, hence the
		# divide-by-0.  (We use -Wno-error to make sure the
		# divide-by-0 doesn't cause this test to fail!)
	        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 1/0
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  perftools_cv_w_no_unused_result=yes
else
  perftools_cv_w_no_unused_result=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
	        CFLAGS="$OLD_CFLAGS"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $perftools_cv_w_no_unused_result" >&5
$as_echo "$perftools_cv_w_no_unused_result" >&6; }
 if test "$perftools_cv_w_no_unused_result" = yes; then
  HAVE_W_NO_UNUSED_RESULT_TRUE=
  HAVE_W_NO_UNUSED_RESULT_FALSE='#'
else
  HAVE_W_NO_UNUSED_RESULT_TRUE='#'
  HAVE_W_NO_UNUSED_RESULT_FALSE=
fi


# Defines PRIuS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking printf format code for printing a size_t and ssize_t" >&5
$as_echo_n "checking printf format code for printing a size_t and ssize_t... " >&6; }
if ${ac_cv_formatting_prius_prefix+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
unsigned int v1 = 0; size_t v2 = 0; return (&v1 - &v2)
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_formatting_prius_prefix=; ac_cv_prius_defined=1
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
unsigned long v1 = 0; size_t v2 = 0; return (&v1 - &v2)
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_formatting_prius_prefix=l; ac_cv_prius_defined=1
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
unsigned long long v1 = 0; size_t v2 = 0; return (&v1 - &v2)
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_formatting_prius_prefix=ll; ac_cv_prius_defined=1

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_formatting_prius_prefix" >&5
$as_echo "$ac_cv_formatting_prius_prefix" >&6; }
   if test -z "$ac_cv_prius_defined"; then
      ac_cv_formatting_prius_prefix=z;
   fi

cat >>confdefs.h <<_ACEOF
#define PRIuS "${ac_cv_formatting_prius_prefix}u"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PRIxS "${ac_cv_formatting_prius_prefix}x"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define PRIdS "${ac_cv_formatting_prius_prefix}d"
_ACEOF



# Also make sure we get standard PRI... definitions, even with glibc.
# We have to use AH_VERBATIM because we need the #ifdef guard (gcc buglet)


# Check if __builtin_stack_pointer() is available (for elfcore.h)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_stack_pointer()" >&5
$as_echo_n "checking for __builtin_stack_pointer()... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
void *sp = __builtin_stack_pointer()
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

$as_echo "#define HAVE_BUILTIN_STACK_POINTER 1" >>confdefs.h

                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

# Check for __builtin_expect()
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_expect()" >&5
$as_echo_n "checking for __builtin_expect()... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return __builtin_expect(main != 0, 1)
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

$as_echo "#define HAVE_BUILTIN_EXPECT 1" >>confdefs.h

                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

# Check if __environ is available (for GetenvBeforeMain)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __environ" >&5
$as_echo_n "checking for __environ... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
char **env = __environ
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

$as_echo "#define HAVE___ENVIRON 1" >>confdefs.h

                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

# If we support __thread, that can speed up tcmalloc a bit.
# Note, however, that our code tickles a bug in gcc < 4.1.2
# involving TLS and -fPIC (which our libraries will use) on x86:
#   http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#
# And mingw also does compile __thread but resultant code actually
# fails to work correctly at least in some not so ancient version:
# http://mingw-users.1079350.n2.nabble.com/gcc-4-4-multi-threaded-exception-handling-amp-thread-specifier-not-working-td3440749.html
#
# Also it was reported that earlier gcc versions for mips compile
# __thread but it doesn't really work
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __thread" >&5
$as_echo_n "checking for __thread... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#if defined(__GNUC__) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 1) || (__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ < 2))
#error gcc has this bug: http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#elif defined(__MINGW32__)
#error mingw doesnt really support tls
#elif defined(__APPLE__)
#error OSX __thread support is known to call malloc which makes it unsafe to use from malloc replacement
#endif

int
main ()
{
static __thread int p = 0
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

$as_echo "#define HAVE_TLS 1" >>confdefs.h

                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

# glibc's __malloc_hook/etc were declared volatile starting in glibc 2.14
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __malloc_hook is declared volatile" >&5
$as_echo_n "checking if __malloc_hook is declared volatile... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
void* (* volatile __malloc_hook)(size_t, const void*) = 0;
int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

$as_echo "#define MALLOC_HOOK_MAYBE_VOLATILE volatile" >>confdefs.h

                   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  $as_echo "#define MALLOC_HOOK_MAYBE_VOLATILE /**/" >>confdefs.h

                   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

# Nanosleep requires extra libraries on some architectures (solaris).
# This sets NANOSLEEP_LIBS.  nanosleep doesn't exist on mingw, which
# is fine for us because we don't compile libspinlock, which uses it.
if test "$need_nanosleep" = yes; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if nanosleep requires any libraries" >&5
$as_echo_n "checking if nanosleep requires any libraries... " >&6; }

 ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

 acx_nanosleep_ok="no"
 NANOSLEEP_LIBS=
 # For most folks, this should just work
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
static struct timespec ts; nanosleep(&ts, NULL);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  acx_nanosleep_ok=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
 # For solaris, we may  need -lrt
 if test "x$acx_nanosleep_ok" != "xyes"; then
   OLD_LIBS="$LIBS"
   LIBS="-lrt $LIBS"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
static struct timespec ts; nanosleep(&ts, NULL);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  acx_nanosleep_ok=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
   if test "x$acx_nanosleep_ok" = "xyes"; then
     NANOSLEEP_LIBS="-lrt"
   fi
   LIBS="$OLD_LIBS"
 fi
 if test "x$acx_nanosleep_ok" != "xyes"; then
   as_fn_error $? "cannot find the nanosleep function" "$LINENO" 5
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${NANOSLEEP_LIBS:-no}" >&5
$as_echo "${NANOSLEEP_LIBS:-no}" >&6; }
 fi
 ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu



fi

# Solaris 10 6/06 has a bug where /usr/sfw/lib/libstdc++.la is empty.
# If so, we replace it with our own version.
LIBSTDCXX_LA_LINKER_FLAG=
if test -f /usr/sfw/lib/libstdc++.la && ! test -s /usr/sfw/lib/libstdc++.la
then
  LIBSTDCXX_LA_LINKER_FLAG='-L$(top_srcdir)/src/solaris'
fi


# We also need to check if the kernel supports __thread, which requires uname()
ac_fn_c_check_decl "$LINENO" "uname" "ac_cv_have_decl_uname" "#include 
"
if test "x$ac_cv_have_decl_uname" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_UNAME $ac_have_decl
_ACEOF


# In fact, a lot of the code in this directory depends on pthreads



ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

acx_pthread_ok=no

# We used to check for pthread.h first, but this fails if pthread.h
# requires special compiler flags (e.g. on True64 or Sequent).
# It gets checked for in the link test anyway.

# First of all, check if the user has set any of the PTHREAD_LIBS,
# etcetera environment variables, and if threads linking works using
# them:
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
        save_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
        save_LIBS="$LIBS"
        LIBS="$PTHREAD_LIBS $LIBS"
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS" >&5
$as_echo_n "checking for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS... " >&6; }
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char pthread_join ();
int
main ()
{
return pthread_join ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  acx_pthread_ok=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_ok" >&5
$as_echo "$acx_pthread_ok" >&6; }
        if test x"$acx_pthread_ok" = xno; then
                PTHREAD_LIBS=""
                PTHREAD_CFLAGS=""
        fi
        LIBS="$save_LIBS"
        CFLAGS="$save_CFLAGS"
fi

# We must check for the threads library under a number of different
# names; the ordering is very important because some systems
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
# libraries is broken (non-POSIX).

# Create a list of thread flags to try.  Items starting with a "-" are
# C compiler flags, and other items are library names, except for "none"
# which indicates that we try without any flags at all, and "pthread-config"
# which is a program returning the flags for the Pth emulation library.

acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"

# The ordering *is* (sometimes) important.  Some notes on the
# individual items follow:

# pthreads: AIX (must check this before -lpthread)
# none: in case threads are in libc; should be tried before -Kthread and
#       other compiler flags to prevent continual compiler warnings
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
# -pthreads: Solaris/gcc
# -mthreads: Mingw32/gcc, Lynx/gcc
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
#      doesn't hurt to check since this sometimes defines pthreads too;
#      also defines -D_REENTRANT)
#      ... -mt is also the pthreads flag for HP/aCC
# pthread: Linux, etcetera
# --thread-safe: KAI C++
# pthread-config: use pthread-config program (for GNU Pth library)

case "${host_cpu}-${host_os}" in
        *solaris*)

        # On Solaris (at least, for some versions), libc contains stubbed
        # (non-functional) versions of the pthreads routines, so link-based
        # tests will erroneously succeed.  (We need to link with -pthreads/-mt/
        # -lpthread.)  (The stubs are missing pthread_cleanup_push, or rather
        # a function called by this macro, so we could check for that, but
        # who knows whether they'll stub that too in a future libc.)  So,
        # we'll just look for -pthreads and -lpthread first:

        acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
        ;;
esac

if test x"$acx_pthread_ok" = xno; then
for flag in $acx_pthread_flags; do

        case $flag in
                none)
                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5
$as_echo_n "checking whether pthreads work without any flags... " >&6; }
                ;;

                -*)
                { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $flag" >&5
$as_echo_n "checking whether pthreads work with $flag... " >&6; }
                PTHREAD_CFLAGS="$flag"
                ;;

		pthread-config)
		# Extract the first word of "pthread-config", so it can be a program name with args.
set dummy pthread-config; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_acx_pthread_config+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$acx_pthread_config"; then
  ac_cv_prog_acx_pthread_config="$acx_pthread_config" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_acx_pthread_config="yes"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_prog_acx_pthread_config" && ac_cv_prog_acx_pthread_config="no"
fi
fi
acx_pthread_config=$ac_cv_prog_acx_pthread_config
if test -n "$acx_pthread_config"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_config" >&5
$as_echo "$acx_pthread_config" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


		if test x"$acx_pthread_config" = xno; then continue; fi
		PTHREAD_CFLAGS="`pthread-config --cflags`"
		PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
		;;

                *)
                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$flag" >&5
$as_echo_n "checking for the pthreads library -l$flag... " >&6; }
                PTHREAD_LIBS="-l$flag"
                ;;
        esac

        save_LIBS="$LIBS"
        save_CFLAGS="$CFLAGS"
        LIBS="$PTHREAD_LIBS $LIBS"
        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"

        # Check for various functions.  We must include pthread.h,
        # since some functions may be macros.  (On the Sequent, we
        # need a special flag -Kthread to make this header compile.)
        # We check for pthread_join because it is in -lpthread on IRIX
        # while pthread_create is in libc.  We check for pthread_attr_init
        # due to DEC craziness with -lpthreads.  We check for
        # pthread_cleanup_push because it is one of the few pthread
        # functions on Solaris that doesn't have a non-functional libc stub.
        # We try pthread_create on general principles.
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
pthread_t th; pthread_join(th, 0);
                     pthread_attr_init(0); pthread_cleanup_push(0, 0);
                     pthread_create(0,0,0,0); pthread_cleanup_pop(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  acx_pthread_ok=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

        LIBS="$save_LIBS"
        CFLAGS="$save_CFLAGS"

        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_ok" >&5
$as_echo "$acx_pthread_ok" >&6; }
        if test "x$acx_pthread_ok" = xyes; then
                break;
        fi

        PTHREAD_LIBS=""
        PTHREAD_CFLAGS=""
done
fi

# Various other checks:
if test "x$acx_pthread_ok" = xyes; then
        save_LIBS="$LIBS"
        LIBS="$PTHREAD_LIBS $LIBS"
        save_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $PTHREAD_CFLAGS"

        # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
$as_echo_n "checking for joinable pthread attribute... " >&6; }
	attr_name=unknown
	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
int attr=$attr; return attr;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  attr_name=$attr; break
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	done
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $attr_name" >&5
$as_echo "$attr_name" >&6; }
        if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then

cat >>confdefs.h <<_ACEOF
#define PTHREAD_CREATE_JOINABLE $attr_name
_ACEOF

        fi

        { $as_echo "$as_me:${as_lineno-$LINENO}: checking if more special flags are required for pthreads" >&5
$as_echo_n "checking if more special flags are required for pthreads... " >&6; }
        flag=no
        case "${host_cpu}-${host_os}" in
            *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
            *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
        esac
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${flag}" >&5
$as_echo "${flag}" >&6; }
        if test "x$flag" != xno; then
            PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
        fi

        LIBS="$save_LIBS"
        CFLAGS="$save_CFLAGS"
        # More AIX lossage: must compile with xlc_r or cc_r
	if test x"$GCC" != xyes; then
          for ac_prog in xlc_r cc_r
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_PTHREAD_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$PTHREAD_CC"; then
  ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_PTHREAD_CC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
PTHREAD_CC=$ac_cv_prog_PTHREAD_CC
if test -n "$PTHREAD_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5
$as_echo "$PTHREAD_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$PTHREAD_CC" && break
done
test -n "$PTHREAD_CC" || PTHREAD_CC="${CC}"

        else
          PTHREAD_CC=$CC
	fi

	# The next part tries to detect GCC inconsistency with -shared on some
	# architectures and systems. The problem is that in certain
	# configurations, when -shared is specified, GCC "forgets" to
	# internally use various flags which are still necessary.

	#
	# Prepare the flags
	#
	save_CFLAGS="$CFLAGS"
	save_LIBS="$LIBS"
	save_CC="$CC"

	# Try with the flags determined by the earlier checks.
	#
	# -Wl,-z,defs forces link-time symbol resolution, so that the
	# linking checks with -shared actually have any value
	#
	# FIXME: -fPIC is required for -shared on many architectures,
	# so we specify it here, but the right way would probably be to
	# properly detect whether it is actually required.
	CFLAGS="-shared -fPIC -Wl,-z,defs $CFLAGS $PTHREAD_CFLAGS"
	LIBS="$PTHREAD_LIBS $LIBS"
	CC="$PTHREAD_CC"

	# In order not to create several levels of indentation, we test
	# the value of "$done" until we find the cure or run out of ideas.
	done="no"

	# First, make sure the CFLAGS we added are actually accepted by our
	# compiler.  If not (and OS X's ld, for instance, does not accept -z),
	# then we can't do this test.
	if test x"$done" = xno; then
	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to check for GCC pthread/shared inconsistencies" >&5
$as_echo_n "checking whether to check for GCC pthread/shared inconsistencies... " >&6; }
	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

else
  done=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

	   if test "x$done" = xyes ; then
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	   else
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	   fi
	fi

	if test x"$done" = xno; then
	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -pthread is sufficient with -shared" >&5
$as_echo_n "checking whether -pthread is sufficient with -shared... " >&6; }
	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
pthread_t th; pthread_join(th, 0);
	      pthread_attr_init(0); pthread_cleanup_push(0, 0);
	      pthread_create(0,0,0,0); pthread_cleanup_pop(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  done=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

	   if test "x$done" = xyes; then
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	   else
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	   fi
	fi

	#
	# Linux gcc on some architectures such as mips/mipsel forgets
	# about -lpthread
	#
	if test x"$done" = xno; then
	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lpthread fixes that" >&5
$as_echo_n "checking whether -lpthread fixes that... " >&6; }
	   LIBS="-lpthread $PTHREAD_LIBS $save_LIBS"
	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
pthread_t th; pthread_join(th, 0);
	      pthread_attr_init(0); pthread_cleanup_push(0, 0);
	      pthread_create(0,0,0,0); pthread_cleanup_pop(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  done=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

	   if test "x$done" = xyes; then
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	      PTHREAD_LIBS="-lpthread $PTHREAD_LIBS"
	   else
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	   fi
	fi
	#
	# FreeBSD 4.10 gcc forgets to use -lc_r instead of -lc
	#
	if test x"$done" = xno; then
	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc_r fixes that" >&5
$as_echo_n "checking whether -lc_r fixes that... " >&6; }
	   LIBS="-lc_r $PTHREAD_LIBS $save_LIBS"
	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
pthread_t th; pthread_join(th, 0);
	        pthread_attr_init(0); pthread_cleanup_push(0, 0);
	        pthread_create(0,0,0,0); pthread_cleanup_pop(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  done=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

	   if test "x$done" = xyes; then
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	      PTHREAD_LIBS="-lc_r $PTHREAD_LIBS"
	   else
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	   fi
	fi
	if test x"$done" = xno; then
	   # OK, we have run out of ideas
	   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Impossible to determine how to use pthreads with shared libraries" >&5
$as_echo "$as_me: WARNING: Impossible to determine how to use pthreads with shared libraries" >&2;}

	   # so it's not safe to assume that we may use pthreads
	   acx_pthread_ok=no
	fi

	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether what we have so far is sufficient with -nostdlib" >&5
$as_echo_n "checking whether what we have so far is sufficient with -nostdlib... " >&6; }
	CFLAGS="-nostdlib $CFLAGS"
	# we need c with nostdlib
	LIBS="$LIBS -lc"
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
pthread_t th; pthread_join(th, 0);
	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
	       pthread_create(0,0,0,0); pthread_cleanup_pop(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  done=yes
else
  done=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

	if test "x$done" = xyes; then
	   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	else
	   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	fi

	if test x"$done" = xno; then
	   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lpthread saves the day" >&5
$as_echo_n "checking whether -lpthread saves the day... " >&6; }
	   LIBS="-lpthread $LIBS"
	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
pthread_t th; pthread_join(th, 0);
	       pthread_attr_init(0); pthread_cleanup_push(0, 0);
	       pthread_create(0,0,0,0); pthread_cleanup_pop(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  done=yes
else
  done=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

	   if test "x$done" = xyes; then
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	      PTHREAD_LIBS="$PTHREAD_LIBS -lpthread"
	   else
	      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Impossible to determine how to use pthreads with shared libraries and -nostdlib" >&5
$as_echo "$as_me: WARNING: Impossible to determine how to use pthreads with shared libraries and -nostdlib" >&2;}
	   fi
	fi

	CFLAGS="$save_CFLAGS"
	LIBS="$save_LIBS"
	CC="$save_CC"
else
        PTHREAD_CC="$CC"
fi





# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test x"$acx_pthread_ok" = xyes; then

$as_echo "#define HAVE_PTHREAD 1" >>confdefs.h

        :
else
        acx_pthread_ok=no

fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu




ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthread symbols are available in C++ without including pthread.h" >&5
$as_echo_n "checking whether pthread symbols are available in C++ without including pthread.h... " >&6; }
acx_pthread_despite_asking_for=no
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

      #include 
      #include 

int
main ()
{

      pthread_t th; pthread_join(th, 0);

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :

    acx_pthread_despite_asking_for=yes

$as_echo "#define HAVE_PTHREAD_DESPITE_ASKING_FOR 1" >>confdefs.h

    $as_echo "#define HAVE_PTHREAD 1" >>confdefs.h


fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_despite_asking_for" >&5
$as_echo "$acx_pthread_despite_asking_for" >&6; }
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


 if test x"$acx_pthread_despite_asking_for" = xyes; then
  HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE=
  HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE='#'
else
  HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE='#'
  HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE=
fi


# Find out what namespace 'normal' STL code lives in
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler implements namespaces" >&5
$as_echo_n "checking whether the compiler implements namespaces... " >&6; }
if ${ac_cv_cxx_namespaces+:} false; then :
  $as_echo_n "(cached) " >&6
else

                  ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

                  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
namespace Outer {
                                    namespace Inner { int i = 0; }}
int
main ()
{
using namespace Outer::Inner; return i;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_cxx_namespaces=yes
else
  ac_cv_cxx_namespaces=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
                  ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_namespaces" >&5
$as_echo "$ac_cv_cxx_namespaces" >&6; }
  if test "$ac_cv_cxx_namespaces" = yes; then

$as_echo "#define HAVE_NAMESPACES 1" >>confdefs.h

  fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking what namespace STL code is in" >&5
$as_echo_n "checking what namespace STL code is in... " >&6; }
if ${ac_cv_cxx_stl_namespace+:} false; then :
  $as_echo_n "(cached) " >&6
else


      ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
vector t; return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_cxx_stl_namespace=none
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
int
main ()
{
std::vector t; return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_cxx_stl_namespace=std
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
      ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_stl_namespace" >&5
$as_echo "$ac_cv_cxx_stl_namespace" >&6; }
   if test "$ac_cv_cxx_stl_namespace" = none; then

$as_echo "#define STL_NAMESPACE /**/" >>confdefs.h

   fi
   if test "$ac_cv_cxx_stl_namespace" = std; then

$as_echo "#define STL_NAMESPACE std" >>confdefs.h

   fi


# Figure out where libc has program_invocation_name
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for program_invocation_name" >&5
$as_echo_n "checking for program_invocation_name... " >&6; }
if ${ac_cv_have_program_invocation_name+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
extern char* program_invocation_name;
int
main ()
{
return *program_invocation_name;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_have_program_invocation_name=yes
else
  ac_cv_have_program_invocation_name=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_program_invocation_name" >&5
$as_echo "$ac_cv_have_program_invocation_name" >&6; }
   if test "$ac_cv_have_program_invocation_name" = "yes"; then

$as_echo "#define HAVE_PROGRAM_INVOCATION_NAME 1" >>confdefs.h

   fi


# Make the install prefix available, to figure out where to look for pprof
ac_cv_install_prefix="$prefix";
   if test x"$ac_cv_install_prefix" = x"NONE" ; then
     ac_cv_install_prefix="$ac_default_prefix";
   fi

cat >>confdefs.h <<_ACEOF
#define INSTALL_PREFIX "$ac_cv_install_prefix"
_ACEOF



case "$host" in
   *-mingw*)
     ac_fn_c_check_decl "$LINENO" "sleep" "ac_cv_have_decl_sleep" "#include 
"
if test "x$ac_cv_have_decl_sleep" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SLEEP $ac_have_decl
_ACEOF

     ac_fn_c_check_decl "$LINENO" "nanosleep" "ac_cv_have_decl_nanosleep" "#include 
"
if test "x$ac_cv_have_decl_nanosleep" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_NANOSLEEP $ac_have_decl
_ACEOF

   ;;
esac

if test "x$enable_backtrace" = xyes; then
  ac_fn_c_check_decl "$LINENO" "backtrace" "ac_cv_have_decl_backtrace" "#include 
"
if test "x$ac_cv_have_decl_backtrace" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_BACKTRACE $ac_have_decl
_ACEOF

fi

# For windows, this has a non-trivial value (__declspec(export)), but any
# system that uses configure wants this to be the empty string.

$as_echo "#define PERFTOOLS_DLL_DECL /**/" >>confdefs.h


# In theory, config.h files shouldn't need a header guard, but we do,
# because we (maybe) #include windows/mingw.h from within config.h,
# and it #includes other .h files.  These all have header guards, so
# the end result is if config.h is #included twice, its #undefs get
# evaluated twice, but all the ones in mingw.h/etc only get evaluated
# once, potentially causing trouble.  c.f.
#   http://code.google.com/p/gperftools/issues/detail?id=246




# MinGW uses autoconf, but also needs the windows shim routines
# (since it doesn't have its own support for, say, pthreads).
# This requires us to #include a special header file, and also to
# link in some windows versions of .o's instead of the unix versions.
#
# Also, manually mark systems where we have to be careful how early
# we run pthreads.  TODO(csilvers): turn this into an autoconf check.

 if expr $host : '.*-mingw' >/dev/null 2>&1; then
  MINGW_TRUE=
  MINGW_FALSE='#'
else
  MINGW_TRUE='#'
  MINGW_FALSE=
fi

 if expr $host : '.*-apple-darwin.*' >/dev/null 2>&1; then
  OSX_TRUE=
  OSX_FALSE='#'
else
  OSX_TRUE='#'
  OSX_FALSE=
fi


# Export the --enable flags we set above.  We do this at the end so
# other configure rules can enable or disable targets based on what
# they find.
 if test "$enable_cpu_profiler" = yes; then
  WITH_CPU_PROFILER_TRUE=
  WITH_CPU_PROFILER_FALSE='#'
else
  WITH_CPU_PROFILER_TRUE='#'
  WITH_CPU_PROFILER_FALSE=
fi

 if test "$enable_heap_profiler" = yes; then
  WITH_HEAP_PROFILER_TRUE=
  WITH_HEAP_PROFILER_FALSE='#'
else
  WITH_HEAP_PROFILER_TRUE='#'
  WITH_HEAP_PROFILER_FALSE=
fi

 if test "$enable_heap_checker" = yes; then
  WITH_HEAP_CHECKER_TRUE=
  WITH_HEAP_CHECKER_FALSE='#'
else
  WITH_HEAP_CHECKER_TRUE='#'
  WITH_HEAP_CHECKER_FALSE=
fi

 if test "$enable_debugalloc" = yes; then
  WITH_DEBUGALLOC_TRUE=
  WITH_DEBUGALLOC_FALSE='#'
else
  WITH_DEBUGALLOC_TRUE='#'
  WITH_DEBUGALLOC_FALSE=
fi

# We make tcmalloc.so if either heap-profiler or heap-checker is asked for.
 if test "$enable_heap_profiler" = yes -o \
                    "$enable_heap_checker" = yes; then
  WITH_HEAP_PROFILER_OR_CHECKER_TRUE=
  WITH_HEAP_PROFILER_OR_CHECKER_FALSE='#'
else
  WITH_HEAP_PROFILER_OR_CHECKER_TRUE='#'
  WITH_HEAP_PROFILER_OR_CHECKER_FALSE=
fi

# If we don't use any profilers, we don't need stack traces (or pprof)
 if test "$enable_cpu_profiler" = yes -o \
                                      "$enable_heap_profiler" = yes -o \
                                      "$enable_heap_checker" = yes; then
  WITH_STACK_TRACE_TRUE=
  WITH_STACK_TRACE_FALSE='#'
else
  WITH_STACK_TRACE_TRUE='#'
  WITH_STACK_TRACE_FALSE=
fi


have_linux_sigev_thread_id=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Linux SIGEV_THREAD_ID" >&5
$as_echo_n "checking for Linux SIGEV_THREAD_ID... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include 
                           #include 
int
main ()
{
return SIGEV_THREAD_ID || CLOCK_THREAD_CPUTIME_ID || __linux;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

$as_echo "#define HAVE_LINUX_SIGEV_THREAD_ID 1" >>confdefs.h

         have_linux_sigev_thread_id=yes
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

# Write generated configuration file
ac_config_files="$ac_config_files Makefile src/gperftools/tcmalloc.h src/windows/gperftools/tcmalloc.h"

cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs, see configure's option --config-cache.
# It is not useful on other systems.  If it contains results you don't
# want to keep, you may remove or edit it.
#
# config.status only pays attention to the cache file if you give it
# the --recheck option to rerun configure.
#
# `ac_cv_env_foo' variables (set or unset) will be overridden when
# loading this file, other *unset* `ac_cv_foo' will be assigned the
# following values.

_ACEOF

# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, we kill variables containing newlines.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
(
  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done

  (set) 2>&1 |
    case $as_nl`(ac_space=' '; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      # `set' does not quote correctly, so add quotes: double-quote
      # substitution turns \\\\ into \\, and sed turns \\ into \.
      sed -n \
	"s/'/'\\\\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
      ;; #(
    *)
      # `set' quotes correctly as required by POSIX, so do not add quotes.
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
) |
  sed '
     /^ac_cv_env_/b end
     t clear
     :clear
     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
     t end
     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     :end' >>confcache
if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
  if test -w "$cache_file"; then
    if test "x$cache_file" != "x/dev/null"; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
$as_echo "$as_me: updating cache $cache_file" >&6;}
      if test ! -f "$cache_file" || test -h "$cache_file"; then
	cat confcache >"$cache_file"
      else
        case $cache_file in #(
        */* | ?:*)
	  mv -f confcache "$cache_file"$$ &&
	  mv -f "$cache_file"$$ "$cache_file" ;; #(
        *)
	  mv -f confcache "$cache_file" ;;
	esac
      fi
    fi
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
  fi
fi
rm -f confcache

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

DEFS=-DHAVE_CONFIG_H

ac_libobjs=
ac_ltlibobjs=
U=
for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
  #    will be set to the directory where LIBOBJS objects are built.
  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
done
LIBOBJS=$ac_libobjs

LTLIBOBJS=$ac_ltlibobjs


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
$as_echo_n "checking that generated files are newer than configure... " >&6; }
   if test -n "$am_sleep_pid"; then
     # Hide warnings about reused PIDs.
     wait $am_sleep_pid 2>/dev/null
   fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
$as_echo "done" >&6; }
 if test -n "$EXEEXT"; then
  am__EXEEXT_TRUE=
  am__EXEEXT_FALSE='#'
else
  am__EXEEXT_TRUE='#'
  am__EXEEXT_FALSE=
fi

if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
  as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
  as_fn_error $? "conditional \"AMDEP\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
  as_fn_error $? "conditional \"am__fastdepCXX\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${GCC_TRUE}" && test -z "${GCC_FALSE}"; then
  as_fn_error $? "conditional \"GCC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${HAVE_OBJCOPY_WEAKEN_TRUE}" && test -z "${HAVE_OBJCOPY_WEAKEN_FALSE}"; then
  as_fn_error $? "conditional \"HAVE_OBJCOPY_WEAKEN\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${ENABLE_STATIC_TRUE}" && test -z "${ENABLE_STATIC_FALSE}"; then
  as_fn_error $? "conditional \"ENABLE_STATIC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${ENABLE_FRAME_POINTERS_TRUE}" && test -z "${ENABLE_FRAME_POINTERS_FALSE}"; then
  as_fn_error $? "conditional \"ENABLE_FRAME_POINTERS\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${X86_64_AND_NO_FP_BY_DEFAULT_TRUE}" && test -z "${X86_64_AND_NO_FP_BY_DEFAULT_FALSE}"; then
  as_fn_error $? "conditional \"X86_64_AND_NO_FP_BY_DEFAULT\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${I386_TRUE}" && test -z "${I386_FALSE}"; then
  as_fn_error $? "conditional \"I386\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${HAVE_W_NO_UNUSED_RESULT_TRUE}" && test -z "${HAVE_W_NO_UNUSED_RESULT_FALSE}"; then
  as_fn_error $? "conditional \"HAVE_W_NO_UNUSED_RESULT\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${HAVE_PTHREAD_DESPITE_ASKING_FOR_TRUE}" && test -z "${HAVE_PTHREAD_DESPITE_ASKING_FOR_FALSE}"; then
  as_fn_error $? "conditional \"HAVE_PTHREAD_DESPITE_ASKING_FOR\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${MINGW_TRUE}" && test -z "${MINGW_FALSE}"; then
  as_fn_error $? "conditional \"MINGW\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${OSX_TRUE}" && test -z "${OSX_FALSE}"; then
  as_fn_error $? "conditional \"OSX\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${WITH_CPU_PROFILER_TRUE}" && test -z "${WITH_CPU_PROFILER_FALSE}"; then
  as_fn_error $? "conditional \"WITH_CPU_PROFILER\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${WITH_HEAP_PROFILER_TRUE}" && test -z "${WITH_HEAP_PROFILER_FALSE}"; then
  as_fn_error $? "conditional \"WITH_HEAP_PROFILER\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${WITH_HEAP_CHECKER_TRUE}" && test -z "${WITH_HEAP_CHECKER_FALSE}"; then
  as_fn_error $? "conditional \"WITH_HEAP_CHECKER\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${WITH_DEBUGALLOC_TRUE}" && test -z "${WITH_DEBUGALLOC_FALSE}"; then
  as_fn_error $? "conditional \"WITH_DEBUGALLOC\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${WITH_HEAP_PROFILER_OR_CHECKER_TRUE}" && test -z "${WITH_HEAP_PROFILER_OR_CHECKER_FALSE}"; then
  as_fn_error $? "conditional \"WITH_HEAP_PROFILER_OR_CHECKER\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi
if test -z "${WITH_STACK_TRACE_TRUE}" && test -z "${WITH_STACK_TRACE_FALSE}"; then
  as_fn_error $? "conditional \"WITH_STACK_TRACE\" was never defined.
Usually this means the macro was only invoked conditionally." "$LINENO" 5
fi

: "${CONFIG_STATUS=./config.status}"
ac_write_fail=0
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files $CONFIG_STATUS"
{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
as_write_fail=0
cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
#! $SHELL
# Generated by $as_me.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.

debug=false
ac_cs_recheck=false
ac_cs_silent=false

SHELL=\${CONFIG_SHELL-$SHELL}
export SHELL
_ASEOF
cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi


as_nl='
'
export as_nl
# Printing a long string crashes Solaris 7 /usr/bin/printf.
as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
# Prefer a ksh shell builtin over an external printf program on Solaris,
# but without wasting forks for bash or zsh.
if test -z "$BASH_VERSION$ZSH_VERSION" \
    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='print -r --'
  as_echo_n='print -rn --'
elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='printf %s\n'
  as_echo_n='printf %s'
else
  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
    as_echo_n='/usr/ucb/echo -n'
  else
    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
    as_echo_n_body='eval
      arg=$1;
      case $arg in #(
      *"$as_nl"*)
	expr "X$arg" : "X\\(.*\\)$as_nl";
	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
      esac;
      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
    '
    export as_echo_n_body
    as_echo_n='sh -c $as_echo_n_body as_echo'
  fi
  export as_echo_body
  as_echo='sh -c $as_echo_body as_echo'
fi

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# IFS
# We need space, tab and new line, in precisely that order.  Quoting is
# there to prevent editors from complaining about space-tab.
# (If _AS_PATH_WALK were called with IFS unset, it would disable word
# splitting by setting IFS to empty value.)
IFS=" ""	$as_nl"

# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi

# Unset variables that we do not need and which cause bugs (e.g. in
# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
# suppresses any "Segmentation fault" message there.  '((' could
# trigger a bug in pdksh 5.2.14.
for as_var in BASH_ENV ENV MAIL MAILPATH
do eval test x\${$as_var+set} = xset \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH


# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  $as_echo "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error


# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit

# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith


if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null


# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p
if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi


# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


exec 6>&1
## ----------------------------------- ##
## Main body of $CONFIG_STATUS script. ##
## ----------------------------------- ##
_ASEOF
test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# Save the log message, to keep $0 and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by gperftools $as_me 2.4, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

on `(hostname || uname -n) 2>/dev/null | sed 1q`
"

_ACEOF

case $ac_config_files in *"
"*) set x $ac_config_files; shift; ac_config_files=$*;;
esac

case $ac_config_headers in *"
"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
esac


cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
# Files that config.status was made for.
config_files="$ac_config_files"
config_headers="$ac_config_headers"
config_commands="$ac_config_commands"

_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
ac_cs_usage="\
\`$as_me' instantiates files and other configuration actions
from templates according to the current configuration.  Unless the files
and actions are specified as TAGs, all are instantiated by default.

Usage: $0 [OPTION]... [TAG]...

  -h, --help       print this help, then exit
  -V, --version    print version number and configuration settings, then exit
      --config     print configuration, then exit
  -q, --quiet, --silent
                   do not print progress messages
  -d, --debug      don't remove temporary files
      --recheck    update $as_me by reconfiguring in the same conditions
      --file=FILE[:TEMPLATE]
                   instantiate the configuration file FILE
      --header=FILE[:TEMPLATE]
                   instantiate the configuration header FILE

Configuration files:
$config_files

Configuration headers:
$config_headers

Configuration commands:
$config_commands

Report bugs to ."

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
gperftools config.status 2.4
configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"

Copyright (C) 2012 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."

ac_pwd='$ac_pwd'
srcdir='$srcdir'
INSTALL='$INSTALL'
MKDIR_P='$MKDIR_P'
AWK='$AWK'
test -n "\$AWK" || AWK=awk
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# The default lists apply if the user does not specify any file.
ac_need_defaults=:
while test $# != 0
do
  case $1 in
  --*=?*)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
    ac_shift=:
    ;;
  --*=)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=
    ac_shift=:
    ;;
  *)
    ac_option=$1
    ac_optarg=$2
    ac_shift=shift
    ;;
  esac

  case $ac_option in
  # Handling of the options.
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
    $as_echo "$ac_cs_version"; exit ;;
  --config | --confi | --conf | --con | --co | --c )
    $as_echo "$ac_cs_config"; exit ;;
  --debug | --debu | --deb | --de | --d | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    case $ac_optarg in
    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    '') as_fn_error $? "missing file argument" ;;
    esac
    as_fn_append CONFIG_FILES " '$ac_optarg'"
    ac_need_defaults=false;;
  --header | --heade | --head | --hea )
    $ac_shift
    case $ac_optarg in
    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
    ac_need_defaults=false;;
  --he | --h)
    # Conflict between --help and --header
    as_fn_error $? "ambiguous option: \`$1'
Try \`$0 --help' for more information.";;
  --help | --hel | -h )
    $as_echo "$ac_cs_usage"; exit ;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;

  # This is an error.
  -*) as_fn_error $? "unrecognized option: \`$1'
Try \`$0 --help' for more information." ;;

  *) as_fn_append ac_config_targets " $1"
     ac_need_defaults=false ;;

  esac
  shift
done

ac_configure_extra_args=

if $ac_cs_silent; then
  exec 6>/dev/null
  ac_configure_extra_args="$ac_configure_extra_args --silent"
fi

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
if \$ac_cs_recheck; then
  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
  shift
  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
  CONFIG_SHELL='$SHELL'
  export CONFIG_SHELL
  exec "\$@"
fi

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
exec 5>>config.log
{
  echo
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
## Running $as_me. ##
_ASBOX
  $as_echo "$ac_log"
} >&5

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
#
# INIT-COMMANDS
#
AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"


# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

sed_quote_subst='$sed_quote_subst'
double_quote_subst='$double_quote_subst'
delay_variable_subst='$delay_variable_subst'
macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`'
hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`'
predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`'
postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`'
predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`'
postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`'
compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`'
LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`'
reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`'
reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`'
old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`'
GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`'
lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`'
lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`'
archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`'
enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`'
export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`'
old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`'
old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`'
archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`'
module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`'
allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`'
inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`'
link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`'
always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`'
export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`'
exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`'
hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`'
compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`'
predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`'
postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`'
predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`'
postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`'
compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`'

LTCC='$LTCC'
LTCFLAGS='$LTCFLAGS'
compiler='$compiler_DEFAULT'

# A function that is used when there is no print builtin or printf.
func_fallback_echo ()
{
  eval 'cat <<_LTECHO_EOF
\$1
_LTECHO_EOF'
}

# Quote evaled strings.
for var in SHELL \
ECHO \
PATH_SEPARATOR \
SED \
GREP \
EGREP \
FGREP \
LD \
NM \
LN_S \
lt_SP2NL \
lt_NL2SP \
reload_flag \
OBJDUMP \
deplibs_check_method \
file_magic_cmd \
file_magic_glob \
want_nocaseglob \
DLLTOOL \
sharedlib_from_linklib_cmd \
AR \
AR_FLAGS \
archiver_list_spec \
STRIP \
RANLIB \
CC \
CFLAGS \
compiler \
lt_cv_sys_global_symbol_pipe \
lt_cv_sys_global_symbol_to_cdecl \
lt_cv_sys_global_symbol_to_c_name_address \
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
nm_file_list_spec \
lt_prog_compiler_no_builtin_flag \
lt_prog_compiler_pic \
lt_prog_compiler_wl \
lt_prog_compiler_static \
lt_cv_prog_compiler_c_o \
need_locks \
MANIFEST_TOOL \
DSYMUTIL \
NMEDIT \
LIPO \
OTOOL \
OTOOL64 \
shrext_cmds \
export_dynamic_flag_spec \
whole_archive_flag_spec \
compiler_needs_object \
with_gnu_ld \
allow_undefined_flag \
no_undefined_flag \
hardcode_libdir_flag_spec \
hardcode_libdir_separator \
exclude_expsyms \
include_expsyms \
file_list_spec \
variables_saved_for_relink \
libname_spec \
library_names_spec \
soname_spec \
install_override_mode \
finish_eval \
old_striplib \
striplib \
compiler_lib_search_dirs \
predep_objects \
postdep_objects \
predeps \
postdeps \
compiler_lib_search_path \
LD_CXX \
reload_flag_CXX \
compiler_CXX \
lt_prog_compiler_no_builtin_flag_CXX \
lt_prog_compiler_pic_CXX \
lt_prog_compiler_wl_CXX \
lt_prog_compiler_static_CXX \
lt_cv_prog_compiler_c_o_CXX \
export_dynamic_flag_spec_CXX \
whole_archive_flag_spec_CXX \
compiler_needs_object_CXX \
with_gnu_ld_CXX \
allow_undefined_flag_CXX \
no_undefined_flag_CXX \
hardcode_libdir_flag_spec_CXX \
hardcode_libdir_separator_CXX \
exclude_expsyms_CXX \
include_expsyms_CXX \
file_list_spec_CXX \
compiler_lib_search_dirs_CXX \
predep_objects_CXX \
postdep_objects_CXX \
predeps_CXX \
postdeps_CXX \
compiler_lib_search_path_CXX; do
    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
    *[\\\\\\\`\\"\\\$]*)
      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
      ;;
    *)
      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
      ;;
    esac
done

# Double-quote double-evaled strings.
for var in reload_cmds \
old_postinstall_cmds \
old_postuninstall_cmds \
old_archive_cmds \
extract_expsyms_cmds \
old_archive_from_new_cmds \
old_archive_from_expsyms_cmds \
archive_cmds \
archive_expsym_cmds \
module_cmds \
module_expsym_cmds \
export_symbols_cmds \
prelink_cmds \
postlink_cmds \
postinstall_cmds \
postuninstall_cmds \
finish_cmds \
sys_lib_search_path_spec \
sys_lib_dlsearch_path_spec \
reload_cmds_CXX \
old_archive_cmds_CXX \
old_archive_from_new_cmds_CXX \
old_archive_from_expsyms_cmds_CXX \
archive_cmds_CXX \
archive_expsym_cmds_CXX \
module_cmds_CXX \
module_expsym_cmds_CXX \
export_symbols_cmds_CXX \
prelink_cmds_CXX \
postlink_cmds_CXX; do
    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
    *[\\\\\\\`\\"\\\$]*)
      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
      ;;
    *)
      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
      ;;
    esac
done

ac_aux_dir='$ac_aux_dir'
xsi_shell='$xsi_shell'
lt_shell_append='$lt_shell_append'

# See if we are running on zsh, and set the options which allow our
# commands through without removal of \ escapes INIT.
if test -n "\${ZSH_VERSION+set}" ; then
   setopt NO_GLOB_SUBST
fi


    PACKAGE='$PACKAGE'
    VERSION='$VERSION'
    TIMESTAMP='$TIMESTAMP'
    RM='$RM'
    ofile='$ofile'






_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1

# Handling of arguments.
for ac_config_target in $ac_config_targets
do
  case $ac_config_target in
    "src/config.h") CONFIG_HEADERS="$CONFIG_HEADERS src/config.h" ;;
    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
    "src/gperftools/tcmalloc.h") CONFIG_FILES="$CONFIG_FILES src/gperftools/tcmalloc.h" ;;
    "src/windows/gperftools/tcmalloc.h") CONFIG_FILES="$CONFIG_FILES src/windows/gperftools/tcmalloc.h" ;;

  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
  esac
done


# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used.  Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
fi

# Have a temporary directory for convenience.  Make it in the build tree
# simply because there is no reason against having it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
# Hook for its removal unless debugging.
# Note that there is a small window in which the directory will not be cleaned:
# after its creation but before its name has been assigned to `$tmp'.
$debug ||
{
  tmp= ac_tmp=
  trap 'exit_status=$?
  : "${ac_tmp:=$tmp}"
  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
' 0
  trap 'as_fn_exit 1' 1 2 13 15
}
# Create a (secure) tmp directory for tmp files.

{
  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
  test -d "$tmp"
}  ||
{
  tmp=./conf$$-$RANDOM
  (umask 077 && mkdir "$tmp")
} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
ac_tmp=$tmp

# Set up the scripts for CONFIG_FILES section.
# No need to generate them if there are no CONFIG_FILES.
# This happens for instance with `./config.status config.h'.
if test -n "$CONFIG_FILES"; then


ac_cr=`echo X | tr X '\015'`
# On cygwin, bash can eat \r inside `` if the user requested igncr.
# But we know of no other shell where ac_cr would be empty at this
# point, so we can use a bashism as a fallback.
if test "x$ac_cr" = x; then
  eval ac_cr=\$\'\\r\'
fi
ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null`
if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
  ac_cs_awk_cr='\\r'
else
  ac_cs_awk_cr=$ac_cr
fi

echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
_ACEOF


{
  echo "cat >conf$$subs.awk <<_ACEOF" &&
  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
  echo "_ACEOF"
} >conf$$subs.sh ||
  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
ac_delim='%!_!# '
for ac_last_try in false false false false false :; do
  . ./conf$$subs.sh ||
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5

  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
  if test $ac_delim_n = $ac_delim_num; then
    break
  elif $ac_last_try; then
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
  else
    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
  fi
done
rm -f conf$$subs.sh

cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
_ACEOF
sed -n '
h
s/^/S["/; s/!.*/"]=/
p
g
s/^[^!]*!//
:repl
t repl
s/'"$ac_delim"'$//
t delim
:nl
h
s/\(.\{148\}\)..*/\1/
t more1
s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
p
n
b repl
:more1
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t nl
:delim
h
s/\(.\{148\}\)..*/\1/
t more2
s/["\\]/\\&/g; s/^/"/; s/$/"/
p
b
:more2
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t delim
' >$CONFIG_STATUS || ac_write_fail=1
rm -f conf$$subs.awk
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
_ACAWK
cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
  for (key in S) S_is_set[key] = 1
  FS = ""

}
{
  line = $ 0
  nfields = split(line, field, "@")
  substed = 0
  len = length(field[1])
  for (i = 2; i < nfields; i++) {
    key = field[i]
    keylen = length(key)
    if (S_is_set[key]) {
      value = S[key]
      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
      len += length(value) + length(field[++i])
      substed = 1
    } else
      len += 1 + keylen
  }

  print line
}

_ACAWK
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
else
  cat
fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
_ACEOF

# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
# trailing colons and then remove the whole line if VPATH becomes empty
# (actually we leave an empty line to preserve line numbers).
if test "x$srcdir" = x.; then
  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
h
s///
s/^/:/
s/[	 ]*$/:/
s/:\$(srcdir):/:/g
s/:\${srcdir}:/:/g
s/:@srcdir@:/:/g
s/^:*//
s/:*$//
x
s/\(=[	 ]*\).*/\1/
G
s/\n//
s/^[^=]*=[	 ]*$//
}'
fi

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
fi # test -n "$CONFIG_FILES"

# Set up the scripts for CONFIG_HEADERS section.
# No need to generate them if there are no CONFIG_HEADERS.
# This happens for instance with `./config.status Makefile'.
if test -n "$CONFIG_HEADERS"; then
cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
BEGIN {
_ACEOF

# Transform confdefs.h into an awk script `defines.awk', embedded as
# here-document in config.status, that substitutes the proper values into
# config.h.in to produce config.h.

# Create a delimiter string that does not exist in confdefs.h, to ease
# handling of long lines.
ac_delim='%!_!# '
for ac_last_try in false false :; do
  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
  if test -z "$ac_tt"; then
    break
  elif $ac_last_try; then
    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
  else
    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
  fi
done

# For the awk script, D is an array of macro values keyed by name,
# likewise P contains macro parameters if any.  Preserve backslash
# newline sequences.

ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
sed -n '
s/.\{148\}/&'"$ac_delim"'/g
t rset
:rset
s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
t def
d
:def
s/\\$//
t bsnl
s/["\\]/\\&/g
s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
D["\1"]=" \3"/p
s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
d
:bsnl
s/["\\]/\\&/g
s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
D["\1"]=" \3\\\\\\n"\\/p
t cont
s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
t cont
d
:cont
n
s/.\{148\}/&'"$ac_delim"'/g
t clear
:clear
s/\\$//
t bsnlc
s/["\\]/\\&/g; s/^/"/; s/$/"/p
d
:bsnlc
s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
b cont
' >$CONFIG_STATUS || ac_write_fail=1

cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  for (key in D) D_is_set[key] = 1
  FS = ""
}
/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
  line = \$ 0
  split(line, arg, " ")
  if (arg[1] == "#") {
    defundef = arg[2]
    mac1 = arg[3]
  } else {
    defundef = substr(arg[1], 2)
    mac1 = arg[2]
  }
  split(mac1, mac2, "(") #)
  macro = mac2[1]
  prefix = substr(line, 1, index(line, defundef) - 1)
  if (D_is_set[macro]) {
    # Preserve the white space surrounding the "#".
    print prefix "define", macro P[macro] D[macro]
    next
  } else {
    # Replace #undef with comments.  This is necessary, for example,
    # in the case of _POSIX_SOURCE, which is predefined and required
    # on some systems where configure will not decide to define it.
    if (defundef == "undef") {
      print "/*", prefix defundef, macro, "*/"
      next
    }
  }
}
{ print }
_ACAWK
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
fi # test -n "$CONFIG_HEADERS"


eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
shift
for ac_tag
do
  case $ac_tag in
  :[FHLC]) ac_mode=$ac_tag; continue;;
  esac
  case $ac_mode$ac_tag in
  :[FHL]*:*);;
  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
  :[FH]-) ac_tag=-:-;;
  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
  esac
  ac_save_IFS=$IFS
  IFS=:
  set x $ac_tag
  IFS=$ac_save_IFS
  shift
  ac_file=$1
  shift

  case $ac_mode in
  :L) ac_source=$1;;
  :[FH])
    ac_file_inputs=
    for ac_f
    do
      case $ac_f in
      -) ac_f="$ac_tmp/stdin";;
      *) # Look for the file first in the build tree, then in the source tree
	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
	 # because $ac_f cannot contain `:'.
	 test -f "$ac_f" ||
	   case $ac_f in
	   [\\/$]*) false;;
	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
	   esac ||
	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
      esac
      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
      as_fn_append ac_file_inputs " '$ac_f'"
    done

    # Let's still pretend it is `configure' which instantiates (i.e., don't
    # use $as_me), people would be surprised to read:
    #    /* config.h.  Generated by config.status.  */
    configure_input='Generated from '`
	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
	`' by configure.'
    if test x"$ac_file" != x-; then
      configure_input="$ac_file.  $configure_input"
      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
$as_echo "$as_me: creating $ac_file" >&6;}
    fi
    # Neutralize special characters interpreted by sed in replacement strings.
    case $configure_input in #(
    *\&* | *\|* | *\\* )
       ac_sed_conf_input=`$as_echo "$configure_input" |
       sed 's/[\\\\&|]/\\\\&/g'`;; #(
    *) ac_sed_conf_input=$configure_input;;
    esac

    case $ac_tag in
    *:-:* | *:-) cat >"$ac_tmp/stdin" \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
    esac
    ;;
  esac

  ac_dir=`$as_dirname -- "$ac_file" ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
  as_dir="$ac_dir"; as_fn_mkdir_p
  ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix


  case $ac_mode in
  :F)
  #
  # CONFIG_FILE
  #

  case $INSTALL in
  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
  esac
  ac_MKDIR_P=$MKDIR_P
  case $MKDIR_P in
  [\\/$]* | ?:[\\/]* ) ;;
  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
  esac
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# If the template does not know about datarootdir, expand it.
# FIXME: This hack should be removed a few years after 2.60.
ac_datarootdir_hack=; ac_datarootdir_seen=
ac_sed_dataroot='
/datarootdir/ {
  p
  q
}
/@datadir@/p
/@docdir@/p
/@infodir@/p
/@localedir@/p
/@mandir@/p'
case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
*datarootdir*) ac_datarootdir_seen=yes;;
*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  ac_datarootdir_hack='
  s&@datadir@&$datadir&g
  s&@docdir@&$docdir&g
  s&@infodir@&$infodir&g
  s&@localedir@&$localedir&g
  s&@mandir@&$mandir&g
  s&\\\${datarootdir}&$datarootdir&g' ;;
esac
_ACEOF

# Neutralize VPATH when `$srcdir' = `.'.
# Shell code in configure.ac might set extrasub.
# FIXME: do we really want to maintain this feature?
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_sed_extra="$ac_vpsub
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
:t
/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
s|@configure_input@|$ac_sed_conf_input|;t t
s&@top_builddir@&$ac_top_builddir_sub&;t t
s&@top_build_prefix@&$ac_top_build_prefix&;t t
s&@srcdir@&$ac_srcdir&;t t
s&@abs_srcdir@&$ac_abs_srcdir&;t t
s&@top_srcdir@&$ac_top_srcdir&;t t
s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
s&@builddir@&$ac_builddir&;t t
s&@abs_builddir@&$ac_abs_builddir&;t t
s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
s&@INSTALL@&$ac_INSTALL&;t t
s&@MKDIR_P@&$ac_MKDIR_P&;t t
$ac_datarootdir_hack
"
eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5

test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
      "$ac_tmp/out"`; test -z "$ac_out"; } &&
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&5
$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&2;}

  rm -f "$ac_tmp/stdin"
  case $ac_file in
  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
  esac \
  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 ;;
  :H)
  #
  # CONFIG_HEADER
  #
  if test x"$ac_file" != x-; then
    {
      $as_echo "/* $configure_input  */" \
      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
    } >"$ac_tmp/config.h" \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
$as_echo "$as_me: $ac_file is unchanged" >&6;}
    else
      rm -f "$ac_file"
      mv "$ac_tmp/config.h" "$ac_file" \
	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
    fi
  else
    $as_echo "/* $configure_input  */" \
      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
      || as_fn_error $? "could not create -" "$LINENO" 5
  fi
# Compute "$ac_file"'s index in $config_headers.
_am_arg="$ac_file"
_am_stamp_count=1
for _am_header in $config_headers :; do
  case $_am_header in
    $_am_arg | $_am_arg:* )
      break ;;
    * )
      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  esac
done
echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$_am_arg" : 'X\(//\)[^/]' \| \
	 X"$_am_arg" : 'X\(//\)$' \| \
	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$_am_arg" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`/stamp-h$_am_stamp_count
 ;;

  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
$as_echo "$as_me: executing $ac_file commands" >&6;}
 ;;
  esac


  case $ac_file$ac_mode in
    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
  # Older Autoconf quotes --file arguments for eval, but not when files
  # are listed without --file.  Let's play safe and only enable the eval
  # if we detect the quoting.
  case $CONFIG_FILES in
  *\'*) eval set x "$CONFIG_FILES" ;;
  *)   set x $CONFIG_FILES ;;
  esac
  shift
  for mf
  do
    # Strip MF so we end up with the name of the file.
    mf=`echo "$mf" | sed -e 's/:.*$//'`
    # Check whether this is an Automake generated Makefile or not.
    # We used to match only the files named 'Makefile.in', but
    # some people rename them; so instead we look at the file content.
    # Grep'ing the first line is not enough: some people post-process
    # each Makefile.in and add a new line on top of each file to say so.
    # Grep'ing the whole file is not good either: AIX grep has a line
    # limit of 2048, but all sed's we know have understand at least 4000.
    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
      dirpart=`$as_dirname -- "$mf" ||
$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$mf" : 'X\(//\)[^/]' \| \
	 X"$mf" : 'X\(//\)$' \| \
	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$mf" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
    else
      continue
    fi
    # Extract the definition of DEPDIR, am__include, and am__quote
    # from the Makefile without running 'make'.
    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
    test -z "$DEPDIR" && continue
    am__include=`sed -n 's/^am__include = //p' < "$mf"`
    test -z "$am__include" && continue
    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
    # Find all dependency output files, they are included files with
    # $(DEPDIR) in their names.  We invoke sed twice because it is the
    # simplest approach to changing $(DEPDIR) to its actual value in the
    # expansion.
    for file in `sed -n "
      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
      # Make sure the directory exists.
      test -f "$dirpart/$file" && continue
      fdir=`$as_dirname -- "$file" ||
$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$file" : 'X\(//\)[^/]' \| \
	 X"$file" : 'X\(//\)$' \| \
	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      as_dir=$dirpart/$fdir; as_fn_mkdir_p
      # echo "creating $dirpart/$file"
      echo '# dummy' > "$dirpart/$file"
    done
  done
}
 ;;
    "libtool":C)

    # See if we are running on zsh, and set the options which allow our
    # commands through without removal of \ escapes.
    if test -n "${ZSH_VERSION+set}" ; then
      setopt NO_GLOB_SUBST
    fi

    cfgfile="${ofile}T"
    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
    $RM "$cfgfile"

    cat <<_LT_EOF >> "$cfgfile"
#! $SHELL

# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
# NOTE: Changes made to this file will be lost: look at ltmain.sh.
#
#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
#                 Foundation, Inc.
#   Written by Gordon Matzigkeit, 1996
#
#   This file is part of GNU Libtool.
#
# GNU Libtool is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# As a special exception to the GNU General Public License,
# if you distribute this file as part of a program or library that
# is built using GNU Libtool, you may include this file under the
# same distribution terms that you use for the rest of that program.
#
# GNU Libtool is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Libtool; see the file COPYING.  If not, a copy
# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
# obtained by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.


# The names of the tagged configurations supported by this script.
available_tags="CXX "

# ### BEGIN LIBTOOL CONFIG

# Which release of libtool.m4 was used?
macro_version=$macro_version
macro_revision=$macro_revision

# Whether or not to build shared libraries.
build_libtool_libs=$enable_shared

# Whether or not to build static libraries.
build_old_libs=$enable_static

# What type of objects to build.
pic_mode=$pic_mode

# Whether or not to optimize for fast installation.
fast_install=$enable_fast_install

# Shell to use when invoking shell scripts.
SHELL=$lt_SHELL

# An echo program that protects backslashes.
ECHO=$lt_ECHO

# The PATH separator for the build system.
PATH_SEPARATOR=$lt_PATH_SEPARATOR

# The host system.
host_alias=$host_alias
host=$host
host_os=$host_os

# The build system.
build_alias=$build_alias
build=$build
build_os=$build_os

# A sed program that does not truncate output.
SED=$lt_SED

# Sed that helps us avoid accidentally triggering echo(1) options like -n.
Xsed="\$SED -e 1s/^X//"

# A grep program that handles long lines.
GREP=$lt_GREP

# An ERE matcher.
EGREP=$lt_EGREP

# A literal string matcher.
FGREP=$lt_FGREP

# A BSD- or MS-compatible name lister.
NM=$lt_NM

# Whether we need soft or hard links.
LN_S=$lt_LN_S

# What is the maximum length of a command?
max_cmd_len=$max_cmd_len

# Object file suffix (normally "o").
objext=$ac_objext

# Executable file suffix (normally "").
exeext=$exeext

# whether the shell understands "unset".
lt_unset=$lt_unset

# turn spaces into newlines.
SP2NL=$lt_lt_SP2NL

# turn newlines into spaces.
NL2SP=$lt_lt_NL2SP

# convert \$build file names to \$host format.
to_host_file_cmd=$lt_cv_to_host_file_cmd

# convert \$build files to toolchain format.
to_tool_file_cmd=$lt_cv_to_tool_file_cmd

# An object symbol dumper.
OBJDUMP=$lt_OBJDUMP

# Method to check whether dependent libraries are shared objects.
deplibs_check_method=$lt_deplibs_check_method

# Command to use when deplibs_check_method = "file_magic".
file_magic_cmd=$lt_file_magic_cmd

# How to find potential files when deplibs_check_method = "file_magic".
file_magic_glob=$lt_file_magic_glob

# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
want_nocaseglob=$lt_want_nocaseglob

# DLL creation program.
DLLTOOL=$lt_DLLTOOL

# Command to associate shared and link libraries.
sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd

# The archiver.
AR=$lt_AR

# Flags to create an archive.
AR_FLAGS=$lt_AR_FLAGS

# How to feed a file listing to the archiver.
archiver_list_spec=$lt_archiver_list_spec

# A symbol stripping program.
STRIP=$lt_STRIP

# Commands used to install an old-style archive.
RANLIB=$lt_RANLIB
old_postinstall_cmds=$lt_old_postinstall_cmds
old_postuninstall_cmds=$lt_old_postuninstall_cmds

# Whether to use a lock for old archive extraction.
lock_old_archive_extraction=$lock_old_archive_extraction

# A C compiler.
LTCC=$lt_CC

# LTCC compiler flags.
LTCFLAGS=$lt_CFLAGS

# Take the output of nm and produce a listing of raw symbols and C names.
global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe

# Transform the output of nm in a proper C declaration.
global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl

# Transform the output of nm in a C name address pair.
global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address

# Transform the output of nm in a C name address pair when lib prefix is needed.
global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix

# Specify filename containing input files for \$NM.
nm_file_list_spec=$lt_nm_file_list_spec

# The root where to search for dependent libraries,and in which our libraries should be installed.
lt_sysroot=$lt_sysroot

# The name of the directory that contains temporary libtool files.
objdir=$objdir

# Used to examine libraries when file_magic_cmd begins with "file".
MAGIC_CMD=$MAGIC_CMD

# Must we lock files when doing compilation?
need_locks=$lt_need_locks

# Manifest tool.
MANIFEST_TOOL=$lt_MANIFEST_TOOL

# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
DSYMUTIL=$lt_DSYMUTIL

# Tool to change global to local symbols on Mac OS X.
NMEDIT=$lt_NMEDIT

# Tool to manipulate fat objects and archives on Mac OS X.
LIPO=$lt_LIPO

# ldd/readelf like tool for Mach-O binaries on Mac OS X.
OTOOL=$lt_OTOOL

# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
OTOOL64=$lt_OTOOL64

# Old archive suffix (normally "a").
libext=$libext

# Shared library suffix (normally ".so").
shrext_cmds=$lt_shrext_cmds

# The commands to extract the exported symbol list from a shared archive.
extract_expsyms_cmds=$lt_extract_expsyms_cmds

# Variables whose values should be saved in libtool wrapper scripts and
# restored at link time.
variables_saved_for_relink=$lt_variables_saved_for_relink

# Do we need the "lib" prefix for modules?
need_lib_prefix=$need_lib_prefix

# Do we need a version for libraries?
need_version=$need_version

# Library versioning type.
version_type=$version_type

# Shared library runtime path variable.
runpath_var=$runpath_var

# Shared library path variable.
shlibpath_var=$shlibpath_var

# Is shlibpath searched before the hard-coded library search path?
shlibpath_overrides_runpath=$shlibpath_overrides_runpath

# Format of library name prefix.
libname_spec=$lt_libname_spec

# List of archive names.  First name is the real one, the rest are links.
# The last name is the one that the linker finds with -lNAME
library_names_spec=$lt_library_names_spec

# The coded name of the library, if different from the real name.
soname_spec=$lt_soname_spec

# Permission mode override for installation of shared libraries.
install_override_mode=$lt_install_override_mode

# Command to use after installation of a shared archive.
postinstall_cmds=$lt_postinstall_cmds

# Command to use after uninstallation of a shared archive.
postuninstall_cmds=$lt_postuninstall_cmds

# Commands used to finish a libtool library installation in a directory.
finish_cmds=$lt_finish_cmds

# As "finish_cmds", except a single script fragment to be evaled but
# not shown.
finish_eval=$lt_finish_eval

# Whether we should hardcode library paths into libraries.
hardcode_into_libs=$hardcode_into_libs

# Compile-time system search path for libraries.
sys_lib_search_path_spec=$lt_sys_lib_search_path_spec

# Run-time system search path for libraries.
sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec

# Whether dlopen is supported.
dlopen_support=$enable_dlopen

# Whether dlopen of programs is supported.
dlopen_self=$enable_dlopen_self

# Whether dlopen of statically linked programs is supported.
dlopen_self_static=$enable_dlopen_self_static

# Commands to strip libraries.
old_striplib=$lt_old_striplib
striplib=$lt_striplib


# The linker used to build libraries.
LD=$lt_LD

# How to create reloadable object files.
reload_flag=$lt_reload_flag
reload_cmds=$lt_reload_cmds

# Commands used to build an old-style archive.
old_archive_cmds=$lt_old_archive_cmds

# A language specific compiler.
CC=$lt_compiler

# Is the compiler the GNU compiler?
with_gcc=$GCC

# Compiler flag to turn off builtin functions.
no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag

# Additional compiler flags for building library objects.
pic_flag=$lt_lt_prog_compiler_pic

# How to pass a linker flag through the compiler.
wl=$lt_lt_prog_compiler_wl

# Compiler flag to prevent dynamic linking.
link_static_flag=$lt_lt_prog_compiler_static

# Does compiler simultaneously support -c and -o options?
compiler_c_o=$lt_lt_cv_prog_compiler_c_o

# Whether or not to add -lc for building shared libraries.
build_libtool_need_lc=$archive_cmds_need_lc

# Whether or not to disallow shared libs when runtime libs are static.
allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes

# Compiler flag to allow reflexive dlopens.
export_dynamic_flag_spec=$lt_export_dynamic_flag_spec

# Compiler flag to generate shared objects directly from archives.
whole_archive_flag_spec=$lt_whole_archive_flag_spec

# Whether the compiler copes with passing no objects directly.
compiler_needs_object=$lt_compiler_needs_object

# Create an old-style archive from a shared archive.
old_archive_from_new_cmds=$lt_old_archive_from_new_cmds

# Create a temporary old-style archive to link instead of a shared archive.
old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds

# Commands used to build a shared archive.
archive_cmds=$lt_archive_cmds
archive_expsym_cmds=$lt_archive_expsym_cmds

# Commands used to build a loadable module if different from building
# a shared archive.
module_cmds=$lt_module_cmds
module_expsym_cmds=$lt_module_expsym_cmds

# Whether we are building with GNU ld or not.
with_gnu_ld=$lt_with_gnu_ld

# Flag that allows shared libraries with undefined symbols to be built.
allow_undefined_flag=$lt_allow_undefined_flag

# Flag that enforces no undefined symbols.
no_undefined_flag=$lt_no_undefined_flag

# Flag to hardcode \$libdir into a binary during linking.
# This must work even if \$libdir does not exist
hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec

# Whether we need a single "-rpath" flag with a separated argument.
hardcode_libdir_separator=$lt_hardcode_libdir_separator

# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
# DIR into the resulting binary.
hardcode_direct=$hardcode_direct

# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
# DIR into the resulting binary and the resulting library dependency is
# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
# library is relocated.
hardcode_direct_absolute=$hardcode_direct_absolute

# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
# into the resulting binary.
hardcode_minus_L=$hardcode_minus_L

# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
# into the resulting binary.
hardcode_shlibpath_var=$hardcode_shlibpath_var

# Set to "yes" if building a shared library automatically hardcodes DIR
# into the library and all subsequent libraries and executables linked
# against it.
hardcode_automatic=$hardcode_automatic

# Set to yes if linker adds runtime paths of dependent libraries
# to runtime path list.
inherit_rpath=$inherit_rpath

# Whether libtool must link a program against all its dependency libraries.
link_all_deplibs=$link_all_deplibs

# Set to "yes" if exported symbols are required.
always_export_symbols=$always_export_symbols

# The commands to list exported symbols.
export_symbols_cmds=$lt_export_symbols_cmds

# Symbols that should not be listed in the preloaded symbols.
exclude_expsyms=$lt_exclude_expsyms

# Symbols that must always be exported.
include_expsyms=$lt_include_expsyms

# Commands necessary for linking programs (against libraries) with templates.
prelink_cmds=$lt_prelink_cmds

# Commands necessary for finishing linking programs.
postlink_cmds=$lt_postlink_cmds

# Specify filename containing input files.
file_list_spec=$lt_file_list_spec

# How to hardcode a shared library path into an executable.
hardcode_action=$hardcode_action

# The directories searched by this compiler when creating a shared library.
compiler_lib_search_dirs=$lt_compiler_lib_search_dirs

# Dependencies to place before and after the objects being linked to
# create a shared library.
predep_objects=$lt_predep_objects
postdep_objects=$lt_postdep_objects
predeps=$lt_predeps
postdeps=$lt_postdeps

# The library search path used internally by the compiler when linking
# a shared library.
compiler_lib_search_path=$lt_compiler_lib_search_path

# ### END LIBTOOL CONFIG

_LT_EOF

  case $host_os in
  aix3*)
    cat <<\_LT_EOF >> "$cfgfile"
# AIX sometimes has problems with the GCC collect2 program.  For some
# reason, if we set the COLLECT_NAMES environment variable, the problems
# vanish in a puff of smoke.
if test "X${COLLECT_NAMES+set}" != Xset; then
  COLLECT_NAMES=
  export COLLECT_NAMES
fi
_LT_EOF
    ;;
  esac


ltmain="$ac_aux_dir/ltmain.sh"


  # We use sed instead of cat because bash on DJGPP gets confused if
  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
  # text mode, it properly converts lines to CR/LF.  This bash problem
  # is reportedly fixed, but why not run on old versions too?
  sed '$q' "$ltmain" >> "$cfgfile" \
     || (rm -f "$cfgfile"; exit 1)

  if test x"$xsi_shell" = xyes; then
  sed -e '/^func_dirname ()$/,/^} # func_dirname /c\
func_dirname ()\
{\
\    case ${1} in\
\      */*) func_dirname_result="${1%/*}${2}" ;;\
\      *  ) func_dirname_result="${3}" ;;\
\    esac\
} # Extended-shell func_dirname implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_basename ()$/,/^} # func_basename /c\
func_basename ()\
{\
\    func_basename_result="${1##*/}"\
} # Extended-shell func_basename implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_dirname_and_basename ()$/,/^} # func_dirname_and_basename /c\
func_dirname_and_basename ()\
{\
\    case ${1} in\
\      */*) func_dirname_result="${1%/*}${2}" ;;\
\      *  ) func_dirname_result="${3}" ;;\
\    esac\
\    func_basename_result="${1##*/}"\
} # Extended-shell func_dirname_and_basename implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_stripname ()$/,/^} # func_stripname /c\
func_stripname ()\
{\
\    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are\
\    # positional parameters, so assign one to ordinary parameter first.\
\    func_stripname_result=${3}\
\    func_stripname_result=${func_stripname_result#"${1}"}\
\    func_stripname_result=${func_stripname_result%"${2}"}\
} # Extended-shell func_stripname implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_split_long_opt ()$/,/^} # func_split_long_opt /c\
func_split_long_opt ()\
{\
\    func_split_long_opt_name=${1%%=*}\
\    func_split_long_opt_arg=${1#*=}\
} # Extended-shell func_split_long_opt implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_split_short_opt ()$/,/^} # func_split_short_opt /c\
func_split_short_opt ()\
{\
\    func_split_short_opt_arg=${1#??}\
\    func_split_short_opt_name=${1%"$func_split_short_opt_arg"}\
} # Extended-shell func_split_short_opt implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_lo2o ()$/,/^} # func_lo2o /c\
func_lo2o ()\
{\
\    case ${1} in\
\      *.lo) func_lo2o_result=${1%.lo}.${objext} ;;\
\      *)    func_lo2o_result=${1} ;;\
\    esac\
} # Extended-shell func_lo2o implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_xform ()$/,/^} # func_xform /c\
func_xform ()\
{\
    func_xform_result=${1%.*}.lo\
} # Extended-shell func_xform implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_arith ()$/,/^} # func_arith /c\
func_arith ()\
{\
    func_arith_result=$(( $* ))\
} # Extended-shell func_arith implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_len ()$/,/^} # func_len /c\
func_len ()\
{\
    func_len_result=${#1}\
} # Extended-shell func_len implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:

fi

if test x"$lt_shell_append" = xyes; then
  sed -e '/^func_append ()$/,/^} # func_append /c\
func_append ()\
{\
    eval "${1}+=\\${2}"\
} # Extended-shell func_append implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  sed -e '/^func_append_quoted ()$/,/^} # func_append_quoted /c\
func_append_quoted ()\
{\
\    func_quote_for_eval "${2}"\
\    eval "${1}+=\\\\ \\$func_quote_for_eval_result"\
} # Extended-shell func_append_quoted implementation' "$cfgfile" > $cfgfile.tmp \
  && mv -f "$cfgfile.tmp" "$cfgfile" \
    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
test 0 -eq $? || _lt_function_replace_fail=:


  # Save a `func_append' function call where possible by direct use of '+='
  sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \
    && mv -f "$cfgfile.tmp" "$cfgfile" \
      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
  test 0 -eq $? || _lt_function_replace_fail=:
else
  # Save a `func_append' function call even when '+=' is not available
  sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \
    && mv -f "$cfgfile.tmp" "$cfgfile" \
      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
  test 0 -eq $? || _lt_function_replace_fail=:
fi

if test x"$_lt_function_replace_fail" = x":"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Unable to substitute extended shell functions in $ofile" >&5
$as_echo "$as_me: WARNING: Unable to substitute extended shell functions in $ofile" >&2;}
fi


   mv -f "$cfgfile" "$ofile" ||
    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
  chmod +x "$ofile"


    cat <<_LT_EOF >> "$ofile"

# ### BEGIN LIBTOOL TAG CONFIG: CXX

# The linker used to build libraries.
LD=$lt_LD_CXX

# How to create reloadable object files.
reload_flag=$lt_reload_flag_CXX
reload_cmds=$lt_reload_cmds_CXX

# Commands used to build an old-style archive.
old_archive_cmds=$lt_old_archive_cmds_CXX

# A language specific compiler.
CC=$lt_compiler_CXX

# Is the compiler the GNU compiler?
with_gcc=$GCC_CXX

# Compiler flag to turn off builtin functions.
no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX

# Additional compiler flags for building library objects.
pic_flag=$lt_lt_prog_compiler_pic_CXX

# How to pass a linker flag through the compiler.
wl=$lt_lt_prog_compiler_wl_CXX

# Compiler flag to prevent dynamic linking.
link_static_flag=$lt_lt_prog_compiler_static_CXX

# Does compiler simultaneously support -c and -o options?
compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX

# Whether or not to add -lc for building shared libraries.
build_libtool_need_lc=$archive_cmds_need_lc_CXX

# Whether or not to disallow shared libs when runtime libs are static.
allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX

# Compiler flag to allow reflexive dlopens.
export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX

# Compiler flag to generate shared objects directly from archives.
whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX

# Whether the compiler copes with passing no objects directly.
compiler_needs_object=$lt_compiler_needs_object_CXX

# Create an old-style archive from a shared archive.
old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX

# Create a temporary old-style archive to link instead of a shared archive.
old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX

# Commands used to build a shared archive.
archive_cmds=$lt_archive_cmds_CXX
archive_expsym_cmds=$lt_archive_expsym_cmds_CXX

# Commands used to build a loadable module if different from building
# a shared archive.
module_cmds=$lt_module_cmds_CXX
module_expsym_cmds=$lt_module_expsym_cmds_CXX

# Whether we are building with GNU ld or not.
with_gnu_ld=$lt_with_gnu_ld_CXX

# Flag that allows shared libraries with undefined symbols to be built.
allow_undefined_flag=$lt_allow_undefined_flag_CXX

# Flag that enforces no undefined symbols.
no_undefined_flag=$lt_no_undefined_flag_CXX

# Flag to hardcode \$libdir into a binary during linking.
# This must work even if \$libdir does not exist
hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX

# Whether we need a single "-rpath" flag with a separated argument.
hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX

# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
# DIR into the resulting binary.
hardcode_direct=$hardcode_direct_CXX

# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
# DIR into the resulting binary and the resulting library dependency is
# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
# library is relocated.
hardcode_direct_absolute=$hardcode_direct_absolute_CXX

# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
# into the resulting binary.
hardcode_minus_L=$hardcode_minus_L_CXX

# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
# into the resulting binary.
hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX

# Set to "yes" if building a shared library automatically hardcodes DIR
# into the library and all subsequent libraries and executables linked
# against it.
hardcode_automatic=$hardcode_automatic_CXX

# Set to yes if linker adds runtime paths of dependent libraries
# to runtime path list.
inherit_rpath=$inherit_rpath_CXX

# Whether libtool must link a program against all its dependency libraries.
link_all_deplibs=$link_all_deplibs_CXX

# Set to "yes" if exported symbols are required.
always_export_symbols=$always_export_symbols_CXX

# The commands to list exported symbols.
export_symbols_cmds=$lt_export_symbols_cmds_CXX

# Symbols that should not be listed in the preloaded symbols.
exclude_expsyms=$lt_exclude_expsyms_CXX

# Symbols that must always be exported.
include_expsyms=$lt_include_expsyms_CXX

# Commands necessary for linking programs (against libraries) with templates.
prelink_cmds=$lt_prelink_cmds_CXX

# Commands necessary for finishing linking programs.
postlink_cmds=$lt_postlink_cmds_CXX

# Specify filename containing input files.
file_list_spec=$lt_file_list_spec_CXX

# How to hardcode a shared library path into an executable.
hardcode_action=$hardcode_action_CXX

# The directories searched by this compiler when creating a shared library.
compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX

# Dependencies to place before and after the objects being linked to
# create a shared library.
predep_objects=$lt_predep_objects_CXX
postdep_objects=$lt_postdep_objects_CXX
predeps=$lt_predeps_CXX
postdeps=$lt_postdeps_CXX

# The library search path used internally by the compiler when linking
# a shared library.
compiler_lib_search_path=$lt_compiler_lib_search_path_CXX

# ### END LIBTOOL TAG CONFIG: CXX
_LT_EOF

 ;;

  esac
done # for ac_tag


as_fn_exit 0
_ACEOF
ac_clean_files=$ac_clean_files_save

test $ac_write_fail = 0 ||
  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5


# configure is writing to config.log, and then calls config.status.
# config.status does its own redirection, appending to config.log.
# Unfortunately, on DOS this fails, as config.log is still kept open
# by configure, so config.status won't be able to write to it; its
# output is simply discarded.  So we exec the FD to /dev/null,
# effectively closing config.log, so it can be properly (re)opened and
# appended to by config.status.  When coming back to configure, we
# need to make the FD available again.
if test "$no_create" != yes; then
  ac_cs_success=:
  ac_config_status_args=
  test "$silent" = yes &&
    ac_config_status_args="$ac_config_status_args --quiet"
  exec 5>/dev/null
  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
  exec 5>>config.log
  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
  # would make configure fail if this is the last instruction.
  $ac_cs_success || as_fn_exit 1
fi
if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
fi


if test "$x86_no_fp_by_default" = yes && test "x$enable_frame_pointers" != xyes && test "x$UNWIND_LIBS" = x && test "x$enable_minimal" != xyes; then :
  if test "x$enable_backtrace" = xyes; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No frame pointers and no libunwind. Expect backtrace capturing and unittests to fail" >&5
$as_echo "$as_me: WARNING: No frame pointers and no libunwind. Expect backtrace capturing and unittests to fail" >&2;}
else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "No frame pointers and no libunwind. The compilation will fail
See \`config.log' for more details" "$LINENO" 5; }
fi
fi
gperftools-2.4/configure.ac0000644000000000000000000005566612454304575012753 00000000000000## Process this file with autoconf to produce configure.
## In general, the safest way to proceed is to run ./autogen.sh

# make sure we're interpreted by some minimal autoconf
AC_PREREQ([2.59])

AC_INIT([gperftools],[2.4],[google-perftools@googlegroups.com])
# Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
TCMALLOC_SO_VERSION=6:6:2
PROFILER_SO_VERSION=4:5:4

AC_SUBST(TCMALLOC_SO_VERSION)
AC_SUBST(PROFILER_SO_VERSION)

# The argument here is just something that should be in the current directory
# (for sanity checking)
AC_CONFIG_SRCDIR(README)
AC_CONFIG_MACRO_DIR([m4])
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([dist-zip])
AC_CONFIG_HEADERS([src/config.h])

AM_MAINTAINER_MODE()
# Export the version information (for tc_version and friends)
TC_VERSION_MAJOR=`expr "$PACKAGE_VERSION" : '\([[0-9]]*\)'`
TC_VERSION_MINOR=`expr "$PACKAGE_VERSION" : '[[0-9]]*\.\([[0-9]]*\)'`
TC_VERSION_PATCH=`expr "$PACKAGE_VERSION" : '[[0-9]]*\.[[0-9]]*\(.*\)$'`
AC_SUBST(TC_VERSION_MAJOR)
AC_SUBST(TC_VERSION_MINOR)
AC_SUBST(TC_VERSION_PATCH)
AC_SUBST(PACKAGE_STRING)

# The user can choose not to compile in the heap-profiler, the
# heap-checker, or the cpu-profiler.  There's also the possibility
# for a 'fully minimal' compile, which leaves out the stacktrace
# code as well.  By default, we include all of these that the
# target system supports.
default_enable_cpu_profiler=yes
default_enable_heap_profiler=yes
default_enable_heap_checker=yes
default_enable_debugalloc=yes
default_enable_minimal=no
default_tcmalloc_alignment=16
need_nanosleep=yes   # Used later, to decide if to run ACX_NANOSLEEP
case "$host" in
   *-mingw*) default_enable_minimal=yes; default_enable_debugalloc=no;
             need_nanosleep=no;;
   *-cygwin*) default_enable_heap_checker=no; default_enable_cpu_profiler=no;;
   *-freebsd*) default_enable_heap_checker=no;;
   *-darwin*) default_enable_heap_checker=no;;
esac

# Disable libunwind linking on ppc64 by default.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __PPC64__])],
                  [default_enable_libunwind=no
                   default_tcmalloc_pagesize=64],
                  [default_enable_libunwind=yes
                   default_tcmalloc_pagesize=8])

AC_ARG_ENABLE([cpu-profiler],
              [AS_HELP_STRING([--disable-cpu-profiler],
                              [do not build the cpu profiler])],
              [],
              [enable_cpu_profiler="$default_enable_cpu_profiler"])
AC_ARG_ENABLE([heap-profiler],
              [AS_HELP_STRING([--disable-heap-profiler],
                              [do not build the heap profiler])],
              [],
              [enable_heap_profiler="$default_enable_heap_profiler"])
AC_ARG_ENABLE([heap-checker],
              [AS_HELP_STRING([--disable-heap-checker],
                              [do not build the heap checker])],
              [],
              [enable_heap_checker="$default_enable_heap_checker"])
AC_ARG_ENABLE([debugalloc],
              [AS_HELP_STRING([--disable-debugalloc],
                              [do not build versions of libs with debugalloc])],
              [],
              [enable_debugalloc="$default_enable_debugalloc"])
AC_ARG_ENABLE([minimal],
              [AS_HELP_STRING([--enable-minimal],
                              [build only tcmalloc-minimal (and maybe tcmalloc-minimal-debug)])],
              [],
              [enable_minimal="$default_enable_minimal"])
if test "$enable_minimal" = yes; then
  enable_cpu_profiler=no
  enable_heap_profiler=no
  enable_heap_checker=no
fi
AC_ARG_ENABLE([stacktrace-via-backtrace],
              [AS_HELP_STRING([--enable-stacktrace-via-backtrace],
                              [enable use of backtrace() for stacktrace capturing (may deadlock)])],
              [enable_backtrace=yes],
              [])
AC_ARG_ENABLE([libunwind],
              [AS_HELP_STRING([--enable-libunwind],
                              [enable libunwind linking])],
              [],
              [enable_libunwind="$default_enable_libunwind"])
AC_ARG_WITH([tcmalloc-pagesize],
            [AS_HELP_STRING([--with-tcmalloc-pagesize],
                            [Set the tcmalloc internal page size to 8K, 32K or 64K])],
            [],
            [with_tcmalloc_pagesize=$default_tcmalloc_pagesize])
AC_ARG_WITH([tcmalloc-alignment],
            [AS_HELP_STRING([--with-tcmalloc-alignment],
                            [Set the tcmalloc allocation alignment to 8 or 16 bytes])],
            [],
            [with_tcmalloc_alignment=$default_tcmalloc_alignment])

case "$with_tcmalloc_pagesize" in
  8)
       #Default tcmalloc page size.
       ;;
  32)
       AC_DEFINE(TCMALLOC_32K_PAGES, 1,
                 [Define 32K of internal pages size for tcmalloc]);;
  64)
       AC_DEFINE(TCMALLOC_64K_PAGES, 1,
                 [Define 64K of internal pages size for tcmalloc]);;
  *)
       AC_MSG_WARN([${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size.])
esac
case "$with_tcmalloc_alignment" in
  8)
       AC_DEFINE(TCMALLOC_ALIGN_8BYTES, 1,
                 [Define 8 bytes of allocation alignment for tcmalloc]);;
  16)
       #Default tcmalloc allocation alignment.
       ;;
  *)
       AC_MSG_WARN([${with_tcmalloc_alignment} bytes not supported, using default tcmalloc allocation alignment.])
esac

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_CPP
AM_CONDITIONAL(GCC, test "$GCC" = yes)   # let the Makefile know if we're gcc
AM_PROG_CC_C_O      # shrug: autogen.sh suddenly needs this for some reason

# Check if we have an objcopy installed that supports -W
AC_CHECK_TOOL([OBJCOPY], [objcopy], [])
AS_IF([test -n "$OBJCOPY"], [dnl
  AC_CACHE_CHECK([if $OBJCOPY supports -W], gpt_cv_objcopy_weaken, [dnl
    AC_LINK_IFELSE([AC_LANG_PROGRAM([void foo() {} int main() {return 0;}])], [dnl
      AS_IF(["$OBJCOPY" -W foo conftest$ac_exeext /dev/null],
      	    [gpt_cv_objcopy_weaken=yes], [gpt_cv_objcopy_weaken=no])],
    [gpt_cv_objcopy_weaken=no])])],
  [gpt_cv_objcopy_weaken=no])
AM_CONDITIONAL(HAVE_OBJCOPY_WEAKEN, test $gpt_cv_objcopy_weaken = yes)

AC_PROG_LIBTOOL

AC_C_INLINE
AX_C___ATTRIBUTE__

# Check whether some low-level functions/files are available
AC_HEADER_STDC

# TODO(csilvers): we could remove a lot when WITH_CPU_PROFILER etc is "no".
AC_CHECK_TYPES([__int64])       # defined in some windows platforms
AC_CHECK_TYPES([struct mallinfo],,, [#include ])
AC_CHECK_TYPES([Elf32_Versym],,, [#include ])   # for vdso_support.h
AC_CHECK_FUNCS(sbrk)            # for tcmalloc to get memory
AC_CHECK_FUNCS(geteuid)         # for turning off services when run as root
AC_CHECK_FUNCS(fork)            # for the pthread_atfork setup
AC_CHECK_HEADERS(features.h)    # for vdso_support.h
AC_CHECK_HEADERS(malloc.h)      # some systems define stuff there, others not
AC_CHECK_HEADERS(sys/malloc.h)  # where some versions of OS X put malloc.h
AC_CHECK_HEADERS(malloc/malloc.h)  # another place OS X puts malloc.h (?)
AC_CHECK_HEADERS(glob.h)        # for heap-profile-table (cleaning up profiles)
AC_CHECK_HEADERS(execinfo.h)    # for stacktrace? and heapchecker_unittest
AC_CHECK_HEADERS(unwind.h)      # for stacktrace
AC_CHECK_HEADERS(sched.h)       # for being nice in our spinlock code
AC_CHECK_HEADERS(conflict-signal.h)      # defined on some windows platforms?
AC_CHECK_HEADERS(sys/prctl.h)   # for thread_lister (needed by leak-checker)
AC_CHECK_HEADERS(linux/ptrace.h)# also needed by leak-checker
AC_CHECK_HEADERS(sys/syscall.h)
AC_CHECK_HEADERS(sys/socket.h)  # optional; for forking out to symbolizer
AC_CHECK_HEADERS(sys/wait.h)    # optional; for forking out to symbolizer
AC_CHECK_HEADERS(poll.h)        # optional; for forking out to symbolizer
AC_CHECK_HEADERS(fcntl.h)       # for tcmalloc_unittest
AC_CHECK_HEADERS(grp.h)         # for heapchecker_unittest
AC_CHECK_HEADERS(pwd.h)         # for heapchecker_unittest
AC_CHECK_HEADERS(sys/resource.h)         # for memalign_unittest.cc
AC_CHECK_HEADERS(valgrind.h)    # we have a local copy if this isn't found
AC_CHECK_HEADERS(sys/cdefs.h)   # Where glibc defines __THROW
AC_CHECK_HEADERS(features.h)    # Where __GLIBC__ is defined
# We also need /, but we get those from
# AC_PC_FROM_UCONTEXT, below.

# We override a lot of memory allocation routines, not all of which are
# standard.  For those the system doesn't declare, we'll declare ourselves.
AC_CHECK_DECLS([cfree,
                posix_memalign,
                memalign,
                valloc,
                pvalloc],,,
               [#define _XOPEN_SOURCE 600
                #include 
                #include ])

if test "$ac_cv_type_struct_mallinfo" = yes; then
  AC_SUBST(ac_cv_have_struct_mallinfo, 1)   # gperftools/tcmalloc.h needs this
else
  AC_SUBST(ac_cv_have_struct_mallinfo, 0)
fi

# We need to check for mmap.  cygwin supports mmap, but the autoconf
# test doesn't work on cygwin:
#    http://www.cygwin.com/ml/cygwin/2002-04/msg00412.html
# This workaround comes from
#    http://cygwin.com/ml/cygwin/2004-11/msg00138.html
case "$host" in
  *-*-mingw*)
               dnl mingw doesn't have mmap, not worth
               dnl checking. Especially given that mingw can be a
               dnl cross-compiler
               ;;
  *-*-cygwin*)
	       ac_cv_func_mmap_fixed_mapped=yes
               AC_DEFINE(HAVE_MMAP, 1,
                         [Define to 1 if you have a working `mmap' system call.])
               ;;
            *) if test "$cross_compiling" = yes; then
                 ac_cv_func_mmap_fixed_mapped=yes
                 AC_DEFINE(HAVE_MMAP, 1,
                           [Define to 1 if you have a working `mmap' system call.])
               else
                 AC_FUNC_MMAP
               fi
               ;;
esac

# If AtomicWord != Atomic32, we need to define two versions of all the
# atomicops functions.  If they're the same, we want to define only one.
AC_MSG_CHECKING([if int32_t is the same type as intptr_t])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[int32_t v1 = 0; intptr_t v2 = 0; return (&v1 - &v2)]])],[AC_DEFINE(INT32_EQUALS_INTPTR, 1,
                          Define to 1 if int32_t is equivalent to intptr_t)
                AC_MSG_RESULT([yes])],[AC_MSG_RESULT([no])])

# We want to access the "PC" (Program Counter) register from a struct
# ucontext.  Every system has its own way of doing that.  We try all the
# possibilities we know about.  Note REG_PC should come first (REG_RIP
# is also defined on solaris, but does the wrong thing).  But don't
# bother if we're not doing cpu-profiling.
# [*] means that we've not actually tested one of these systems
if test "$enable_cpu_profiler" = yes; then
  AC_PC_FROM_UCONTEXT(AC_MSG_WARN(Could not find the PC.  Will not try to compile libprofiler...);
                      enable_cpu_profiler=no)
fi

# Some tests test the behavior of .so files, and only make sense for dynamic.
AM_CONDITIONAL(ENABLE_STATIC, test "$enable_static" = yes)

# We want to link in libunwind or libexecinfo if it it is enabled and exists.
if test "$enable_libunwind" = yes; then
  AC_CHECK_HEADERS(libunwind.h)   # for stacktrace
  AC_CHECK_LIB(unwind, backtrace, UNWIND_LIBS=-lunwind,
               [AC_CHECK_LIB(execinfo, backtrace, UNWIND_LIBS=-lexecinfo, UNWIND_LIBS=)])
  AC_SUBST(UNWIND_LIBS)
else
  AC_CHECK_LIB(execinfo, backtrace, UNWIND_LIBS=-lexecinfo, UNWIND_LIBS=)
  AC_SUBST(UNWIND_LIBS)
fi

# On x86_64, instead of libunwind, we can choose to compile with frame-pointers.
AC_ARG_ENABLE(frame_pointers,
              AS_HELP_STRING([--enable-frame-pointers],
                             [On x86_64 systems, compile with -fno-omit-frame-pointer (see INSTALL)]),
	      , enable_frame_pointers=no)
AM_CONDITIONAL(ENABLE_FRAME_POINTERS, test "$enable_frame_pointers" = yes)

AC_MSG_CHECKING([for x86 without frame pointers])
# Some x86_64 systems do not insert frame pointers by default.
# We want to see if the current system is one of those.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __x86_64__ == 1 ? 0 : 1])],
                  [is_x86_64=yes], [is_x86_64=no])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -S -O2 -o fp.s"
# This test will always fail because we don't name our output file properly.
# We do our own determination of success/failure in the grep, below.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int f(int x) {return x;}], [return f(0);])],
                  [:], [:])
x86_no_fp_by_default=no
AS_IF([test "$is_x86_64" = yes && ! grep 'mov.*rsp.*rbp' fp.s >/dev/null 2>&1], [x86_no_fp_by_default=yes])
AM_CONDITIONAL(X86_64_AND_NO_FP_BY_DEFAULT,
               test "$x86_no_fp_by_default" = yes)
rm fp.s
CFLAGS="$OLD_CFLAGS"
AC_MSG_RESULT([$x86_no_fp_by_default])


# We need to know if we're i386 so we can turn on -mmms, which is not
# on by default for i386 (it is for x86_64).
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __i386__ == 1 ? 0 : 1])],
                  [is_i386=yes], [is_i386=no])
AM_CONDITIONAL(I386, test "$is_i386" = yes)

# See if the compiler supports -Wno-unused-result.
# Newer ubuntu's turn on -D_FORTIFY_SOURCE=2, enabling
# __attribute__((warn_unused_result)) for things like write(),
# which we don't care about.
AC_CACHE_CHECK([if the compiler supports -Wno-unused-result],
               perftools_cv_w_no_unused_result,
	       [OLD_CFLAGS="$CFLAGS"
	        CFLAGS="$CFLAGS -Wno-error -Wno-unused-result"
		# gcc doesn't warn about unknown flags unless it's
		# also warning for some other purpose, hence the
		# divide-by-0.  (We use -Wno-error to make sure the
		# divide-by-0 doesn't cause this test to fail!)
	        AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, return 1/0)],
	                          perftools_cv_w_no_unused_result=yes,
                                  perftools_cv_w_no_unused_result=no)
	        CFLAGS="$OLD_CFLAGS"])
AM_CONDITIONAL(HAVE_W_NO_UNUSED_RESULT,
	       test "$perftools_cv_w_no_unused_result" = yes)

# Defines PRIuS
AC_COMPILER_CHARACTERISTICS

# Also make sure we get standard PRI... definitions, even with glibc.
# We have to use AH_VERBATIM because we need the #ifdef guard (gcc buglet)
AH_VERBATIM([__STDC_FORMAT_MACROS],
            [/* C99 says: define this to get the PRI... macros from stdint.h */
#ifndef __STDC_FORMAT_MACROS
# define __STDC_FORMAT_MACROS 1
#endif])

# Check if __builtin_stack_pointer() is available (for elfcore.h)
AC_MSG_CHECKING([for __builtin_stack_pointer()])
AC_LINK_IFELSE([AC_LANG_PROGRAM(, [void *sp = __builtin_stack_pointer()])],
               [AC_DEFINE(HAVE_BUILTIN_STACK_POINTER, 1,
                      Define to 1 if compiler supports __builtin_stack_pointer)
                AC_MSG_RESULT([yes])],
               [AC_MSG_RESULT([no])])

# Check for __builtin_expect()
AC_MSG_CHECKING([for __builtin_expect()])
AC_LINK_IFELSE([AC_LANG_PROGRAM(, return __builtin_expect(main != 0, 1))],
               [AC_DEFINE(HAVE_BUILTIN_EXPECT, 1,
                          Define to 1 if compiler supports __builtin_expect)
                AC_MSG_RESULT([yes])],
               [AC_MSG_RESULT([no])])

# Check if __environ is available (for GetenvBeforeMain)
AC_MSG_CHECKING([for __environ])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ],
                                [char **env = __environ])],
               [AC_DEFINE(HAVE___ENVIRON, 1,
                          [Define to 1 if compiler supports __environ])
                AC_MSG_RESULT([yes])],
               [AC_MSG_RESULT([no])])

# If we support __thread, that can speed up tcmalloc a bit.
# Note, however, that our code tickles a bug in gcc < 4.1.2
# involving TLS and -fPIC (which our libraries will use) on x86:
#   http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#
# And mingw also does compile __thread but resultant code actually
# fails to work correctly at least in some not so ancient version:
# http://mingw-users.1079350.n2.nabble.com/gcc-4-4-multi-threaded-exception-handling-amp-thread-specifier-not-working-td3440749.html
#
# Also it was reported that earlier gcc versions for mips compile
# __thread but it doesn't really work
AC_MSG_CHECKING([for __thread])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#if defined(__GNUC__) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 1) || (__GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ < 2))
#error gcc has this bug: http://gcc.gnu.org/ml/gcc-bugs/2006-09/msg02275.html
#elif defined(__MINGW32__)
#error mingw doesnt really support tls
#elif defined(__APPLE__)
#error OSX __thread support is known to call malloc which makes it unsafe to use from malloc replacement
#endif
], [static __thread int p = 0])],
               [AC_DEFINE(HAVE_TLS, 1,
                          Define to 1 if compiler supports __thread)
                AC_MSG_RESULT([yes])],
               [AC_MSG_RESULT([no])])

# glibc's __malloc_hook/etc were declared volatile starting in glibc 2.14
AC_MSG_CHECKING([if __malloc_hook is declared volatile])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include 
void* (* volatile __malloc_hook)(size_t, const void*) = 0;],)],
                  [AC_DEFINE(MALLOC_HOOK_MAYBE_VOLATILE, volatile,
                             Define to 'volatile' if __malloc_hook is declared volatile)
                   AC_MSG_RESULT([yes])],
                  [AC_DEFINE(MALLOC_HOOK_MAYBE_VOLATILE, )
                   AC_MSG_RESULT([no])])

# Nanosleep requires extra libraries on some architectures (solaris).
# This sets NANOSLEEP_LIBS.  nanosleep doesn't exist on mingw, which
# is fine for us because we don't compile libspinlock, which uses it.
if test "$need_nanosleep" = yes; then
  ACX_NANOSLEEP
  AC_SUBST(NANOSLEEP_LIBS)
fi

# Solaris 10 6/06 has a bug where /usr/sfw/lib/libstdc++.la is empty.
# If so, we replace it with our own version.
LIBSTDCXX_LA_LINKER_FLAG=
if test -f /usr/sfw/lib/libstdc++.la && ! test -s /usr/sfw/lib/libstdc++.la
then
  LIBSTDCXX_LA_LINKER_FLAG='-L$(top_srcdir)/src/solaris'
fi
AC_SUBST(LIBSTDCXX_LA_LINKER_FLAG)

# We also need to check if the kernel supports __thread, which requires uname()
AC_CHECK_DECLS(uname,,, [#include ])

# In fact, a lot of the code in this directory depends on pthreads
ACX_PTHREAD

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([whether pthread symbols are available in C++ without including pthread.h])
acx_pthread_despite_asking_for=no
AC_LINK_IFELSE(
  [AC_LANG_PROGRAM([
      #include 
      #include 
  ],[
      pthread_t th; pthread_join(th, 0);
  ])],[
    acx_pthread_despite_asking_for=yes
    AC_DEFINE(HAVE_PTHREAD_DESPITE_ASKING_FOR, 1, [defined to 1 if pthread symbols are exposed even without include pthread.h])
    AC_DEFINE(HAVE_PTHREAD, 1, [])
  ])
AC_MSG_RESULT([$acx_pthread_despite_asking_for])
AC_LANG_RESTORE

AM_CONDITIONAL(HAVE_PTHREAD_DESPITE_ASKING_FOR, test x"$acx_pthread_despite_asking_for" = xyes)

# Find out what namespace 'normal' STL code lives in
AC_CXX_STL_NAMESPACE

# Figure out where libc has program_invocation_name
AC_PROGRAM_INVOCATION_NAME

# Make the install prefix available, to figure out where to look for pprof
AC_INSTALL_PREFIX

dnl only very recent mingw has sleep and nanosleep
case "$host" in
   *-mingw*)
     AC_CHECK_DECLS([sleep], [], [], [#include ])
     AC_CHECK_DECLS([nanosleep], [], [], [#include ])
   ;;
esac

if test "x$enable_backtrace" = xyes; then
  AC_CHECK_DECLS([backtrace], [], [], [#include ])
fi

# For windows, this has a non-trivial value (__declspec(export)), but any
# system that uses configure wants this to be the empty string.
AC_DEFINE(PERFTOOLS_DLL_DECL,,
          [Always the empty-string on non-windows systems.
           On windows, should be "__declspec(dllexport)".
	   This way, when we compile the dll, we export our functions/classes.
	   It's safe to define this here because config.h is only used
	   internally, to compile the DLL, and every DLL source file
	   #includes "config.h" before anything else.])

# In theory, config.h files shouldn't need a header guard, but we do,
# because we (maybe) #include windows/mingw.h from within config.h,
# and it #includes other .h files.  These all have header guards, so
# the end result is if config.h is #included twice, its #undefs get
# evaluated twice, but all the ones in mingw.h/etc only get evaluated
# once, potentially causing trouble.  c.f.
#   http://code.google.com/p/gperftools/issues/detail?id=246
AH_TOP([
#ifndef GPERFTOOLS_CONFIG_H_
#define GPERFTOOLS_CONFIG_H_
])

AH_VERBATIM([PTHREADS_CRASHES_IF_RUN_TOO_EARLY],
	    [/* Mark the systems where we know it's bad if pthreads runs too
   early before main (before threads are initialized, presumably).  */
#ifdef __FreeBSD__
#define PTHREADS_CRASHES_IF_RUN_TOO_EARLY 1
#endif])

# MinGW uses autoconf, but also needs the windows shim routines
# (since it doesn't have its own support for, say, pthreads).
# This requires us to #include a special header file, and also to
# link in some windows versions of .o's instead of the unix versions.
#
# Also, manually mark systems where we have to be careful how early
# we run pthreads.  TODO(csilvers): turn this into an autoconf check.
AH_BOTTOM([
#ifdef __MINGW32__
#include "windows/mingw.h"
#endif

#endif  /* #ifndef GPERFTOOLS_CONFIG_H_ */
])
AM_CONDITIONAL(MINGW, expr $host : '.*-mingw' >/dev/null 2>&1)
AM_CONDITIONAL(OSX, expr $host : '.*-apple-darwin.*' >/dev/null 2>&1)

# Export the --enable flags we set above.  We do this at the end so
# other configure rules can enable or disable targets based on what
# they find.
AM_CONDITIONAL(WITH_CPU_PROFILER, test "$enable_cpu_profiler" = yes)
AM_CONDITIONAL(WITH_HEAP_PROFILER, test "$enable_heap_profiler" = yes)
AM_CONDITIONAL(WITH_HEAP_CHECKER, test "$enable_heap_checker" = yes)
AM_CONDITIONAL(WITH_DEBUGALLOC, test "$enable_debugalloc" = yes)
# We make tcmalloc.so if either heap-profiler or heap-checker is asked for.
AM_CONDITIONAL(WITH_HEAP_PROFILER_OR_CHECKER,
               test "$enable_heap_profiler" = yes -o \
                    "$enable_heap_checker" = yes)
# If we don't use any profilers, we don't need stack traces (or pprof)
AM_CONDITIONAL(WITH_STACK_TRACE, test "$enable_cpu_profiler" = yes -o \
                                      "$enable_heap_profiler" = yes -o \
                                      "$enable_heap_checker" = yes)

have_linux_sigev_thread_id=no
AC_MSG_CHECKING([for Linux SIGEV_THREAD_ID])
AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM([[#include 
                           #include ]],
                         [[return SIGEV_THREAD_ID || CLOCK_THREAD_CPUTIME_ID || __linux;]])],
        [AC_DEFINE(HAVE_LINUX_SIGEV_THREAD_ID, 1,
                  [Define if this is Linux that has SIGEV_THREAD_ID])
         have_linux_sigev_thread_id=yes
         AC_MSG_RESULT([yes])],
        [AC_MSG_RESULT([no])])

# Write generated configuration file
AC_CONFIG_FILES([Makefile
                 src/gperftools/tcmalloc.h src/windows/gperftools/tcmalloc.h])
AC_OUTPUT

AS_IF([test "$x86_no_fp_by_default" = yes && test "x$enable_frame_pointers" != xyes && test "x$UNWIND_LIBS" = x && test "x$enable_minimal" != xyes],
      [AS_IF([test "x$enable_backtrace" = xyes],
             [AC_MSG_WARN([No frame pointers and no libunwind. Expect backtrace capturing and unittests to fail])],
             [AC_MSG_FAILURE([No frame pointers and no libunwind. The compilation will fail])])])
gperftools-2.4/aclocal.m40000644000000000000000000012601012454304620012272 00000000000000# generated automatically by aclocal 1.14.1 -*- Autoconf -*-

# Copyright (C) 1996-2013 Free Software Foundation, Inc.

# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.

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# This file is free software; the Free Software Foundation
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# Generate code to set up dependency tracking.              -*- Autoconf -*-

# Copyright (C) 1999-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
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# Do all the work for Automake.                             -*- Autoconf -*-

# Copyright (C) 1996-2013 Free Software Foundation, Inc.
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# This file is free software; the Free Software Foundation
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# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
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# This file is free software; the Free Software Foundation
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# Copyright (C) 1999-2013 Free Software Foundation, Inc.
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# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_RUN_LOG(COMMAND)
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# Check to make sure that the build environment is sane.    -*- Autoconf -*-

# Copyright (C) 1996-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
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# AM_SANITY_CHECK
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# Copyright (C) 2009-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
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AC_CACHE_CHECK([whether $am_make supports nested variables],
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AM_BACKSLASH='\'
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# Copyright (C) 2001-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_STRIP
# ---------------------
# One issue with vendor 'install' (even GNU) is that you can't
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# Copyright (C) 2006-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
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# _AM_SUBST_NOTMAKE(VARIABLE)
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# AM_SUBST_NOTMAKE(VARIABLE)
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# Check how to create a tarball.                            -*- Autoconf -*-

# Copyright (C) 2004-2013 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
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# _AM_PROG_TAR(FORMAT)
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AC_SUBST([am__tar])
AC_SUBST([am__untar])
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m4_include([m4/ac_have_attribute.m4])
m4_include([m4/acx_nanosleep.m4])
m4_include([m4/acx_pthread.m4])
m4_include([m4/compiler_characteristics.m4])
m4_include([m4/install_prefix.m4])
m4_include([m4/libtool.m4])
m4_include([m4/ltoptions.m4])
m4_include([m4/ltsugar.m4])
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gperftools-2.4/depcomp0000755000000000000000000005601612454304622012021 00000000000000#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects

scriptversion=2013-05-30.07; # UTC

# Copyright (C) 1999-2013 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see .

# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

# Originally written by Alexandre Oliva .

case $1 in
  '')
    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
    exit 1;
    ;;
  -h | --h*)
    cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]

Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.

Environment variables:
  depmode     Dependency tracking mode.
  source      Source file read by 'PROGRAMS ARGS'.
  object      Object file output by 'PROGRAMS ARGS'.
  DEPDIR      directory where to store dependencies.
  depfile     Dependency file to output.
  tmpdepfile  Temporary file to use when outputting dependencies.
  libtool     Whether libtool is used (yes/no).

Report bugs to .
EOF
    exit $?
    ;;
  -v | --v*)
    echo "depcomp $scriptversion"
    exit $?
    ;;
esac

# Get the directory component of the given path, and save it in the
# global variables '$dir'.  Note that this directory component will
# be either empty or ending with a '/' character.  This is deliberate.
set_dir_from ()
{
  case $1 in
    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
      *) dir=;;
  esac
}

# Get the suffix-stripped basename of the given path, and save it the
# global variable '$base'.
set_base_from ()
{
  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
}

# If no dependency file was actually created by the compiler invocation,
# we still have to create a dummy depfile, to avoid errors with the
# Makefile "include basename.Plo" scheme.
make_dummy_depfile ()
{
  echo "#dummy" > "$depfile"
}

# Factor out some common post-processing of the generated depfile.
# Requires the auxiliary global variable '$tmpdepfile' to be set.
aix_post_process_depfile ()
{
  # If the compiler actually managed to produce a dependency file,
  # post-process it.
  if test -f "$tmpdepfile"; then
    # Each line is of the form 'foo.o: dependency.h'.
    # Do two passes, one to just change these to
    #   $object: dependency.h
    # and one to simply output
    #   dependency.h:
    # which is needed to avoid the deleted-header problem.
    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
    } > "$depfile"
    rm -f "$tmpdepfile"
  else
    make_dummy_depfile
  fi
}

# A tabulation character.
tab='	'
# A newline character.
nl='
'
# Character ranges might be problematic outside the C locale.
# These definitions help.
upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
lower=abcdefghijklmnopqrstuvwxyz
digits=0123456789
alpha=${upper}${lower}

if test -z "$depmode" || test -z "$source" || test -z "$object"; then
  echo "depcomp: Variables source, object and depmode must be set" 1>&2
  exit 1
fi

# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}

rm -f "$tmpdepfile"

# Avoid interferences from the environment.
gccflag= dashmflag=

# Some modes work just like other modes, but use different flags.  We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write.  Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
  # HP compiler uses -M and no extra arg.
  gccflag=-M
  depmode=gcc
fi

if test "$depmode" = dashXmstdout; then
  # This is just like dashmstdout with a different argument.
  dashmflag=-xM
  depmode=dashmstdout
fi

cygpath_u="cygpath -u -f -"
if test "$depmode" = msvcmsys; then
  # This is just like msvisualcpp but w/o cygpath translation.
  # Just convert the backslash-escaped backslashes to single forward
  # slashes to satisfy depend.m4
  cygpath_u='sed s,\\\\,/,g'
  depmode=msvisualcpp
fi

if test "$depmode" = msvc7msys; then
  # This is just like msvc7 but w/o cygpath translation.
  # Just convert the backslash-escaped backslashes to single forward
  # slashes to satisfy depend.m4
  cygpath_u='sed s,\\\\,/,g'
  depmode=msvc7
fi

if test "$depmode" = xlc; then
  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
  gccflag=-qmakedep=gcc,-MF
  depmode=gcc
fi

case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff.  Hmm.
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
## the command line argument order; so add the flags where they
## appear in depend2.am.  Note that the slowdown incurred here
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
  for arg
  do
    case $arg in
    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
    *)  set fnord "$@" "$arg" ;;
    esac
    shift # fnord
    shift # $arg
  done
  "$@"
  stat=$?
  if test $stat -ne 0; then
    rm -f "$tmpdepfile"
    exit $stat
  fi
  mv "$tmpdepfile" "$depfile"
  ;;

gcc)
## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
## (see the conditional assignment to $gccflag above).
## There are various ways to get dependency output from gcc.  Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
##   up in a subdir.  Having to rename by hand is ugly.
##   (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
##   -MM, not -M (despite what the docs say).  Also, it might not be
##   supported by the other compilers which use the 'gcc' depmode.
## - Using -M directly means running the compiler twice (even worse
##   than renaming).
  if test -z "$gccflag"; then
    gccflag=-MD,
  fi
  "$@" -Wp,"$gccflag$tmpdepfile"
  stat=$?
  if test $stat -ne 0; then
    rm -f "$tmpdepfile"
    exit $stat
  fi
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  # The second -e expression handles DOS-style file names with drive
  # letters.
  sed -e 's/^[^:]*: / /' \
      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the "deleted header file" problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header).  We avoid this by adding
## dummy dependencies for each header file.  Too bad gcc doesn't do
## this for us directly.
## Some versions of gcc put a space before the ':'.  On the theory
## that the space means something, we add a space to the output as
## well.  hp depmode also adds that space, but also prefixes the VPATH
## to the object.  Take care to not repeat it in the output.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly.  Breaking it into two sed invocations is a workaround.
  tr ' ' "$nl" < "$tmpdepfile" \
    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
    | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

hp)
  # This case exists only to let depend.m4 do its work.  It works by
  # looking at the text of this script.  This case will never be run,
  # since it is checked for above.
  exit 1
  ;;

sgi)
  if test "$libtool" = yes; then
    "$@" "-Wp,-MDupdate,$tmpdepfile"
  else
    "$@" -MDupdate "$tmpdepfile"
  fi
  stat=$?
  if test $stat -ne 0; then
    rm -f "$tmpdepfile"
    exit $stat
  fi
  rm -f "$depfile"

  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
    echo "$object : \\" > "$depfile"
    # Clip off the initial element (the dependent).  Don't try to be
    # clever and replace this with sed code, as IRIX sed won't handle
    # lines with more than a fixed number of characters (4096 in
    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
    # the IRIX cc adds comments like '#:fec' to the end of the
    # dependency line.
    tr ' ' "$nl" < "$tmpdepfile" \
      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
      | tr "$nl" ' ' >> "$depfile"
    echo >> "$depfile"
    # The second pass generates a dummy entry for each header file.
    tr ' ' "$nl" < "$tmpdepfile" \
      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
      >> "$depfile"
  else
    make_dummy_depfile
  fi
  rm -f "$tmpdepfile"
  ;;

xlc)
  # This case exists only to let depend.m4 do its work.  It works by
  # looking at the text of this script.  This case will never be run,
  # since it is checked for above.
  exit 1
  ;;

aix)
  # The C for AIX Compiler uses -M and outputs the dependencies
  # in a .u file.  In older versions, this file always lives in the
  # current directory.  Also, the AIX compiler puts '$object:' at the
  # start of each line; $object doesn't have directory information.
  # Version 6 uses the directory in both cases.
  set_dir_from "$object"
  set_base_from "$object"
  if test "$libtool" = yes; then
    tmpdepfile1=$dir$base.u
    tmpdepfile2=$base.u
    tmpdepfile3=$dir.libs/$base.u
    "$@" -Wc,-M
  else
    tmpdepfile1=$dir$base.u
    tmpdepfile2=$dir$base.u
    tmpdepfile3=$dir$base.u
    "$@" -M
  fi
  stat=$?
  if test $stat -ne 0; then
    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
    exit $stat
  fi

  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
  do
    test -f "$tmpdepfile" && break
  done
  aix_post_process_depfile
  ;;

tcc)
  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
  # FIXME: That version still under development at the moment of writing.
  #        Make that this statement remains true also for stable, released
  #        versions.
  # It will wrap lines (doesn't matter whether long or short) with a
  # trailing '\', as in:
  #
  #   foo.o : \
  #    foo.c \
  #    foo.h \
  #
  # It will put a trailing '\' even on the last line, and will use leading
  # spaces rather than leading tabs (at least since its commit 0394caf7
  # "Emit spaces for -MD").
  "$@" -MD -MF "$tmpdepfile"
  stat=$?
  if test $stat -ne 0; then
    rm -f "$tmpdepfile"
    exit $stat
  fi
  rm -f "$depfile"
  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
  # We have to change lines of the first kind to '$object: \'.
  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
  # And for each line of the second kind, we have to emit a 'dep.h:'
  # dummy dependency, to avoid the deleted-header problem.
  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

## The order of this option in the case statement is important, since the
## shell code in configure will try each of these formats in the order
## listed in this file.  A plain '-MD' option would be understood by many
## compilers, so we must ensure this comes after the gcc and icc options.
pgcc)
  # Portland's C compiler understands '-MD'.
  # Will always output deps to 'file.d' where file is the root name of the
  # source file under compilation, even if file resides in a subdirectory.
  # The object file name does not affect the name of the '.d' file.
  # pgcc 10.2 will output
  #    foo.o: sub/foo.c sub/foo.h
  # and will wrap long lines using '\' :
  #    foo.o: sub/foo.c ... \
  #     sub/foo.h ... \
  #     ...
  set_dir_from "$object"
  # Use the source, not the object, to determine the base name, since
  # that's sadly what pgcc will do too.
  set_base_from "$source"
  tmpdepfile=$base.d

  # For projects that build the same source file twice into different object
  # files, the pgcc approach of using the *source* file root name can cause
  # problems in parallel builds.  Use a locking strategy to avoid stomping on
  # the same $tmpdepfile.
  lockdir=$base.d-lock
  trap "
    echo '$0: caught signal, cleaning up...' >&2
    rmdir '$lockdir'
    exit 1
  " 1 2 13 15
  numtries=100
  i=$numtries
  while test $i -gt 0; do
    # mkdir is a portable test-and-set.
    if mkdir "$lockdir" 2>/dev/null; then
      # This process acquired the lock.
      "$@" -MD
      stat=$?
      # Release the lock.
      rmdir "$lockdir"
      break
    else
      # If the lock is being held by a different process, wait
      # until the winning process is done or we timeout.
      while test -d "$lockdir" && test $i -gt 0; do
        sleep 1
        i=`expr $i - 1`
      done
    fi
    i=`expr $i - 1`
  done
  trap - 1 2 13 15
  if test $i -le 0; then
    echo "$0: failed to acquire lock after $numtries attempts" >&2
    echo "$0: check lockdir '$lockdir'" >&2
    exit 1
  fi

  if test $stat -ne 0; then
    rm -f "$tmpdepfile"
    exit $stat
  fi
  rm -f "$depfile"
  # Each line is of the form `foo.o: dependent.h',
  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
  # Do two passes, one to just change these to
  # `$object: dependent.h' and one to simply `dependent.h:'.
  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
  # Some versions of the HPUX 10.20 sed can't process this invocation
  # correctly.  Breaking it into two sed invocations is a workaround.
  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
    | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

hp2)
  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
  # compilers, which have integrated preprocessors.  The correct option
  # to use with these is +Maked; it writes dependencies to a file named
  # 'foo.d', which lands next to the object file, wherever that
  # happens to be.
  # Much of this is similar to the tru64 case; see comments there.
  set_dir_from  "$object"
  set_base_from "$object"
  if test "$libtool" = yes; then
    tmpdepfile1=$dir$base.d
    tmpdepfile2=$dir.libs/$base.d
    "$@" -Wc,+Maked
  else
    tmpdepfile1=$dir$base.d
    tmpdepfile2=$dir$base.d
    "$@" +Maked
  fi
  stat=$?
  if test $stat -ne 0; then
     rm -f "$tmpdepfile1" "$tmpdepfile2"
     exit $stat
  fi

  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
  do
    test -f "$tmpdepfile" && break
  done
  if test -f "$tmpdepfile"; then
    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
    # Add 'dependent.h:' lines.
    sed -ne '2,${
               s/^ *//
               s/ \\*$//
               s/$/:/
               p
             }' "$tmpdepfile" >> "$depfile"
  else
    make_dummy_depfile
  fi
  rm -f "$tmpdepfile" "$tmpdepfile2"
  ;;

tru64)
  # The Tru64 compiler uses -MD to generate dependencies as a side
  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
  # dependencies in 'foo.d' instead, so we check for that too.
  # Subdirectories are respected.
  set_dir_from  "$object"
  set_base_from "$object"

  if test "$libtool" = yes; then
    # Libtool generates 2 separate objects for the 2 libraries.  These
    # two compilations output dependencies in $dir.libs/$base.o.d and
    # in $dir$base.o.d.  We have to check for both files, because
    # one of the two compilations can be disabled.  We should prefer
    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
    # automatically cleaned when .libs/ is deleted, while ignoring
    # the former would cause a distcleancheck panic.
    tmpdepfile1=$dir$base.o.d          # libtool 1.5
    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
    "$@" -Wc,-MD
  else
    tmpdepfile1=$dir$base.d
    tmpdepfile2=$dir$base.d
    tmpdepfile3=$dir$base.d
    "$@" -MD
  fi

  stat=$?
  if test $stat -ne 0; then
    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
    exit $stat
  fi

  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
  do
    test -f "$tmpdepfile" && break
  done
  # Same post-processing that is required for AIX mode.
  aix_post_process_depfile
  ;;

msvc7)
  if test "$libtool" = yes; then
    showIncludes=-Wc,-showIncludes
  else
    showIncludes=-showIncludes
  fi
  "$@" $showIncludes > "$tmpdepfile"
  stat=$?
  grep -v '^Note: including file: ' "$tmpdepfile"
  if test $stat -ne 0; then
    rm -f "$tmpdepfile"
    exit $stat
  fi
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  # The first sed program below extracts the file names and escapes
  # backslashes for cygpath.  The second sed program outputs the file
  # name when reading, but also accumulates all include files in the
  # hold buffer in order to output them again at the end.  This only
  # works with sed implementations that can handle large buffers.
  sed < "$tmpdepfile" -n '
/^Note: including file:  *\(.*\)/ {
  s//\1/
  s/\\/\\\\/g
  p
}' | $cygpath_u | sort -u | sed -n '
s/ /\\ /g
s/\(.*\)/'"$tab"'\1 \\/p
s/.\(.*\) \\/\1:/
H
$ {
  s/.*/'"$tab"'/
  G
  p
}' >> "$depfile"
  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
  rm -f "$tmpdepfile"
  ;;

msvc7msys)
  # This case exists only to let depend.m4 do its work.  It works by
  # looking at the text of this script.  This case will never be run,
  # since it is checked for above.
  exit 1
  ;;

#nosideeffect)
  # This comment above is used by automake to tell side-effect
  # dependency tracking mechanisms from slower ones.

dashmstdout)
  # Important note: in order to support this mode, a compiler *must*
  # always write the preprocessed file to stdout, regardless of -o.
  "$@" || exit $?

  # Remove the call to Libtool.
  if test "$libtool" = yes; then
    while test "X$1" != 'X--mode=compile'; do
      shift
    done
    shift
  fi

  # Remove '-o $object'.
  IFS=" "
  for arg
  do
    case $arg in
    -o)
      shift
      ;;
    $object)
      shift
      ;;
    *)
      set fnord "$@" "$arg"
      shift # fnord
      shift # $arg
      ;;
    esac
  done

  test -z "$dashmflag" && dashmflag=-M
  # Require at least two characters before searching for ':'
  # in the target name.  This is to cope with DOS-style filenames:
  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
  "$@" $dashmflag |
    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
  rm -f "$depfile"
  cat < "$tmpdepfile" > "$depfile"
  # Some versions of the HPUX 10.20 sed can't process this sed invocation
  # correctly.  Breaking it into two sed invocations is a workaround.
  tr ' ' "$nl" < "$tmpdepfile" \
    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
    | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

dashXmstdout)
  # This case only exists to satisfy depend.m4.  It is never actually
  # run, as this mode is specially recognized in the preamble.
  exit 1
  ;;

makedepend)
  "$@" || exit $?
  # Remove any Libtool call
  if test "$libtool" = yes; then
    while test "X$1" != 'X--mode=compile'; do
      shift
    done
    shift
  fi
  # X makedepend
  shift
  cleared=no eat=no
  for arg
  do
    case $cleared in
    no)
      set ""; shift
      cleared=yes ;;
    esac
    if test $eat = yes; then
      eat=no
      continue
    fi
    case "$arg" in
    -D*|-I*)
      set fnord "$@" "$arg"; shift ;;
    # Strip any option that makedepend may not understand.  Remove
    # the object too, otherwise makedepend will parse it as a source file.
    -arch)
      eat=yes ;;
    -*|$object)
      ;;
    *)
      set fnord "$@" "$arg"; shift ;;
    esac
  done
  obj_suffix=`echo "$object" | sed 's/^.*\././'`
  touch "$tmpdepfile"
  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
  rm -f "$depfile"
  # makedepend may prepend the VPATH from the source file name to the object.
  # No need to regex-escape $object, excess matching of '.' is harmless.
  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
  # Some versions of the HPUX 10.20 sed can't process the last invocation
  # correctly.  Breaking it into two sed invocations is a workaround.
  sed '1,2d' "$tmpdepfile" \
    | tr ' ' "$nl" \
    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
    | sed -e 's/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile" "$tmpdepfile".bak
  ;;

cpp)
  # Important note: in order to support this mode, a compiler *must*
  # always write the preprocessed file to stdout.
  "$@" || exit $?

  # Remove the call to Libtool.
  if test "$libtool" = yes; then
    while test "X$1" != 'X--mode=compile'; do
      shift
    done
    shift
  fi

  # Remove '-o $object'.
  IFS=" "
  for arg
  do
    case $arg in
    -o)
      shift
      ;;
    $object)
      shift
      ;;
    *)
      set fnord "$@" "$arg"
      shift # fnord
      shift # $arg
      ;;
    esac
  done

  "$@" -E \
    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
    | sed '$ s: \\$::' > "$tmpdepfile"
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  cat < "$tmpdepfile" >> "$depfile"
  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

msvisualcpp)
  # Important note: in order to support this mode, a compiler *must*
  # always write the preprocessed file to stdout.
  "$@" || exit $?

  # Remove the call to Libtool.
  if test "$libtool" = yes; then
    while test "X$1" != 'X--mode=compile'; do
      shift
    done
    shift
  fi

  IFS=" "
  for arg
  do
    case "$arg" in
    -o)
      shift
      ;;
    $object)
      shift
      ;;
    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
        set fnord "$@"
        shift
        shift
        ;;
    *)
        set fnord "$@" "$arg"
        shift
        shift
        ;;
    esac
  done
  "$@" -E 2>/dev/null |
  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
  echo "$tab" >> "$depfile"
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

msvcmsys)
  # This case exists only to let depend.m4 do its work.  It works by
  # looking at the text of this script.  This case will never be run,
  # since it is checked for above.
  exit 1
  ;;

none)
  exec "$@"
  ;;

*)
  echo "Unknown depmode $depmode" 1>&2
  exit 1
  ;;
esac

exit 0

# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:
gperftools-2.4/COPYING0000644000000000000000000000270712371745612011503 00000000000000Copyright (c) 2005, Google Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

    * Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
    * Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
gperftools-2.4/README_windows.txt0000644000000000000000000001267412372001603013706 00000000000000--- COMPILING

This project has begun being ported to Windows.  A working solution
file exists in this directory:
    gperftools.sln

You can load this solution file into VC++ 7.1 (Visual Studio 2003) or
later -- in the latter case, it will automatically convert the files
to the latest format for you.

When you build the solution, it will create a number of unittests,
which you can run by hand (or, more easily, under the Visual Studio
debugger) to make sure everything is working properly on your system.
The binaries will end up in a directory called "debug" or "release" in
the top-level directory (next to the .sln file).  It will also create
two binaries, nm-pdb and addr2line-pdb, which you should install in
the same directory you install the 'pprof' perl script.

I don't know very much about how to install DLLs on Windows, so you'll
have to figure out that part for yourself.  If you choose to just
re-use the existing .sln, make sure you set the IncludeDir's
appropriately!  Look at the properties for libtcmalloc_minimal.dll.

Note that these systems are set to build in Debug mode by default.
You may want to change them to Release mode.

To use tcmalloc_minimal in your own projects, you should only need to
build the dll and install it someplace, so you can link it into
further binaries.  To use the dll, you need to add the following to
the linker line of your executable:
   "libtcmalloc_minimal.lib" /INCLUDE:"__tcmalloc" 

Here is how to accomplish this in Visual Studio 2005 (VC8):

1) Have your executable depend on the tcmalloc library by selecting
   "Project Dependencies..." from the "Project" menu.  Your executable
   should depend on "libtcmalloc_minimal".

2) Have your executable depend on a tcmalloc symbol -- this is
   necessary so the linker doesn't "optimize out" the libtcmalloc
   dependency -- by right-clicking on your executable's project (in
   the solution explorer), selecting Properties from the pull-down
   menu, then selecting "Configuration Properties" -> "Linker" ->
   "Input".  Then, in the "Force Symbol References" field, enter the
   text "__tcmalloc" (without the quotes).  Be sure to do this for both
   debug and release modes!

You can also link tcmalloc code in statically -- see the example
project tcmalloc_minimal_unittest-static, which does this.  For this
to work, you'll need to add "/D PERFTOOLS_DLL_DECL=" to the compile
line of every perftools .cc file.  You do not need to depend on the
tcmalloc symbol in this case (that is, you don't need to do either
step 1 or step 2 from above).

An alternative to all the above is to statically link your application
with libc, and then replace its malloc with tcmalloc.  This allows you
to just build and link your program normally; the tcmalloc support
comes in a post-processing step.  This is more reliable than the above
technique (which depends on run-time patching, which is inherently
fragile), though more work to set up.  For details, see
   https://groups.google.com/group/google-perftools/browse_thread/thread/41cd3710af85e57b


--- THE HEAP-PROFILER

The heap-profiler has had a preliminary port to Windows.  It has not
been well tested, and probably does not work at all when Frame Pointer
Optimization (FPO) is enabled -- that is, in release mode.  The other
features of perftools, such as the cpu-profiler and leak-checker, have
not yet been ported to Windows at all.


--- WIN64

The function-patcher has to disassemble code, and is very
x86-specific.  However, the rest of perftools should work fine for
both x86 and x64.  In particular, if you use the 'statically link with
libc, and replace its malloc with tcmalloc' approach, mentioned above,
it should be possible to use tcmalloc with 64-bit windows.

As of perftools 1.10, there is some support for disassembling x86_64
instructions, for work with win64.  This work is preliminary, but the
test file preamble_patcher_test.cc is provided to play around with
that a bit.  preamble_patcher_test will not compile on win32.


--- ISSUES

NOTE FOR WIN2K USERS: According to reports
(http://code.google.com/p/gperftools/issues/detail?id=127)
the stack-tracing necessary for the heap-profiler does not work on
Win2K.  The best workaround is, if you are building on a Win2k system
is to add "/D NO_TCMALLOC_SAMPLES=" to your build, to turn off the
stack-tracing.  You will not be able to use the heap-profiler if you
do this.

NOTE ON _MSIZE and _RECALLOC: The tcmalloc version of _msize returns
the size of the region tcmalloc allocated for you -- which is at least
as many bytes you asked for, but may be more.  (btw, these *are* bytes
you own, even if you didn't ask for all of them, so it's correct code
to access all of them if you want.)  Unfortunately, the Windows CRT
_recalloc() routine assumes that _msize returns exactly as many bytes
as were requested.  As a result, _recalloc() may not zero out new
bytes correctly.  IT'S SAFEST NOT TO USE _RECALLOC WITH TCMALLOC.
_recalloc() is a tricky routine to use in any case (it's not safe to
use with realloc, for instance).


I have little experience with Windows programming, so there may be
better ways to set this up than I've done!  If you run across any
problems, please post to the google-perftools Google Group, or report
them on the gperftools Google Code site:
   http://groups.google.com/group/google-perftools
   http://code.google.com/p/gperftools/issues/list

-- craig

Last modified: 2 February 2012
gperftools-2.4/TODO0000644000000000000000000000316612371745612011140 00000000000000HEAP PROFILER

1) Fix heap profiling under all STLs
   * Find out how to force non-glibc STL libraries to call new() and
     delete() for every allocation / deallocation.
   * Make heap profiler ignore STL-internal allocations for those
     libraries under which we cannot profile accurately, so we only
     see object-level leaks.
2) Remove dependency on tcmalloc?
3) Port to non-linux O/Ses (right now code uses /proc for library info)
4) Port to non-x86 architectures (locking code in spinlock is x86-specific)
5) Port to C?
6) Figure out how to get setenv() to work properly before main() in
   shared libaries, and get rid of the profile-naming hack once we
   do.  (See HeapProfiler::Init().)


HEAP CHECKER

1) Remove requirement that the heap-checker must be linked last into
   an application (hard! -- it needs its global constructor to run
   first)

TCMALLOC

1) Implement mallinfo/mallopt
2) Have tcmalloc work correctly when libpthread is not linked in
   (currently working for glibc, could use other libc's too)
3) Return memory to the system when requirements drop
4) Explore coloring allocated objects to avoid cache conflicts
5) Explore biasing reclamation to larger addresses
6) Add contention stats to a synchronization.cc (can do spinlocks,
   but threads? -- may have to provide our own thread implementation)

CPU PROFILER

1) Figure out how to get setenv() to work properly before main() in
   shared libaries(), and get rid of the profile-naming hack once we
   do.  (See Profiler::GetUniquePathFromEnv().)
2) Resolve crashing problems on x86_64 (see README)

STACKTRACE

1) Remove dependency on linux/x86

---
11 March 2008
gperftools-2.4/test-driver0000755000000000000000000001027712454304622012641 00000000000000#! /bin/sh
# test-driver - basic testsuite driver script.

scriptversion=2013-07-13.22; # UTC

# Copyright (C) 2011-2013 Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see .

# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

# This file is maintained in Automake, please report
# bugs to  or send patches to
# .

# Make unconditional expansion of undefined variables an error.  This
# helps a lot in preventing typo-related bugs.
set -u

usage_error ()
{
  echo "$0: $*" >&2
  print_usage >&2
  exit 2
}

print_usage ()
{
  cat <$log_file 2>&1
estatus=$?
if test $enable_hard_errors = no && test $estatus -eq 99; then
  estatus=1
fi

case $estatus:$expect_failure in
  0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
  0:*)   col=$grn res=PASS  recheck=no  gcopy=no;;
  77:*)  col=$blu res=SKIP  recheck=no  gcopy=yes;;
  99:*)  col=$mgn res=ERROR recheck=yes gcopy=yes;;
  *:yes) col=$lgn res=XFAIL recheck=no  gcopy=yes;;
  *:*)   col=$red res=FAIL  recheck=yes gcopy=yes;;
esac

# Report outcome to console.
echo "${col}${res}${std}: $test_name"

# Register the test result, and other relevant metadata.
echo ":test-result: $res" > $trs_file
echo ":global-test-result: $res" >> $trs_file
echo ":recheck: $recheck" >> $trs_file
echo ":copy-in-global-log: $gcopy" >> $trs_file

# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:
gperftools-2.4/compile0000755000000000000000000001624512454304622012022 00000000000000#! /bin/sh
# Wrapper for compilers which do not understand '-c -o'.

scriptversion=2012-10-14.11; # UTC

# Copyright (C) 1999-2013 Free Software Foundation, Inc.
# Written by Tom Tromey .
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see .

# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

# This file is maintained in Automake, please report
# bugs to  or send patches to
# .

nl='
'

# We need space, tab and new line, in precisely that order.  Quoting is
# there to prevent tools from complaining about whitespace usage.
IFS=" ""	$nl"

file_conv=

# func_file_conv build_file lazy
# Convert a $build file to $host form and store it in $file
# Currently only supports Windows hosts. If the determined conversion
# type is listed in (the comma separated) LAZY, no conversion will
# take place.
func_file_conv ()
{
  file=$1
  case $file in
    / | /[!/]*) # absolute file, and not a UNC file
      if test -z "$file_conv"; then
	# lazily determine how to convert abs files
	case `uname -s` in
	  MINGW*)
	    file_conv=mingw
	    ;;
	  CYGWIN*)
	    file_conv=cygwin
	    ;;
	  *)
	    file_conv=wine
	    ;;
	esac
      fi
      case $file_conv/,$2, in
	*,$file_conv,*)
	  ;;
	mingw/*)
	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
	  ;;
	cygwin/*)
	  file=`cygpath -m "$file" || echo "$file"`
	  ;;
	wine/*)
	  file=`winepath -w "$file" || echo "$file"`
	  ;;
      esac
      ;;
  esac
}

# func_cl_dashL linkdir
# Make cl look for libraries in LINKDIR
func_cl_dashL ()
{
  func_file_conv "$1"
  if test -z "$lib_path"; then
    lib_path=$file
  else
    lib_path="$lib_path;$file"
  fi
  linker_opts="$linker_opts -LIBPATH:$file"
}

# func_cl_dashl library
# Do a library search-path lookup for cl
func_cl_dashl ()
{
  lib=$1
  found=no
  save_IFS=$IFS
  IFS=';'
  for dir in $lib_path $LIB
  do
    IFS=$save_IFS
    if $shared && test -f "$dir/$lib.dll.lib"; then
      found=yes
      lib=$dir/$lib.dll.lib
      break
    fi
    if test -f "$dir/$lib.lib"; then
      found=yes
      lib=$dir/$lib.lib
      break
    fi
    if test -f "$dir/lib$lib.a"; then
      found=yes
      lib=$dir/lib$lib.a
      break
    fi
  done
  IFS=$save_IFS

  if test "$found" != yes; then
    lib=$lib.lib
  fi
}

# func_cl_wrapper cl arg...
# Adjust compile command to suit cl
func_cl_wrapper ()
{
  # Assume a capable shell
  lib_path=
  shared=:
  linker_opts=
  for arg
  do
    if test -n "$eat"; then
      eat=
    else
      case $1 in
	-o)
	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
	  eat=1
	  case $2 in
	    *.o | *.[oO][bB][jJ])
	      func_file_conv "$2"
	      set x "$@" -Fo"$file"
	      shift
	      ;;
	    *)
	      func_file_conv "$2"
	      set x "$@" -Fe"$file"
	      shift
	      ;;
	  esac
	  ;;
	-I)
	  eat=1
	  func_file_conv "$2" mingw
	  set x "$@" -I"$file"
	  shift
	  ;;
	-I*)
	  func_file_conv "${1#-I}" mingw
	  set x "$@" -I"$file"
	  shift
	  ;;
	-l)
	  eat=1
	  func_cl_dashl "$2"
	  set x "$@" "$lib"
	  shift
	  ;;
	-l*)
	  func_cl_dashl "${1#-l}"
	  set x "$@" "$lib"
	  shift
	  ;;
	-L)
	  eat=1
	  func_cl_dashL "$2"
	  ;;
	-L*)
	  func_cl_dashL "${1#-L}"
	  ;;
	-static)
	  shared=false
	  ;;
	-Wl,*)
	  arg=${1#-Wl,}
	  save_ifs="$IFS"; IFS=','
	  for flag in $arg; do
	    IFS="$save_ifs"
	    linker_opts="$linker_opts $flag"
	  done
	  IFS="$save_ifs"
	  ;;
	-Xlinker)
	  eat=1
	  linker_opts="$linker_opts $2"
	  ;;
	-*)
	  set x "$@" "$1"
	  shift
	  ;;
	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
	  func_file_conv "$1"
	  set x "$@" -Tp"$file"
	  shift
	  ;;
	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
	  func_file_conv "$1" mingw
	  set x "$@" "$file"
	  shift
	  ;;
	*)
	  set x "$@" "$1"
	  shift
	  ;;
      esac
    fi
    shift
  done
  if test -n "$linker_opts"; then
    linker_opts="-link$linker_opts"
  fi
  exec "$@" $linker_opts
  exit 1
}

eat=

case $1 in
  '')
     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
     exit 1;
     ;;
  -h | --h*)
    cat <<\EOF
Usage: compile [--help] [--version] PROGRAM [ARGS]

Wrapper for compilers which do not understand '-c -o'.
Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
arguments, and rename the output as expected.

If you are trying to build a whole package this is not the
right script to run: please start by reading the file 'INSTALL'.

Report bugs to .
EOF
    exit $?
    ;;
  -v | --v*)
    echo "compile $scriptversion"
    exit $?
    ;;
  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
    func_cl_wrapper "$@"      # Doesn't return...
    ;;
esac

ofile=
cfile=

for arg
do
  if test -n "$eat"; then
    eat=
  else
    case $1 in
      -o)
	# configure might choose to run compile as 'compile cc -o foo foo.c'.
	# So we strip '-o arg' only if arg is an object.
	eat=1
	case $2 in
	  *.o | *.obj)
	    ofile=$2
	    ;;
	  *)
	    set x "$@" -o "$2"
	    shift
	    ;;
	esac
	;;
      *.c)
	cfile=$1
	set x "$@" "$1"
	shift
	;;
      *)
	set x "$@" "$1"
	shift
	;;
    esac
  fi
  shift
done

if test -z "$ofile" || test -z "$cfile"; then
  # If no '-o' option was seen then we might have been invoked from a
  # pattern rule where we don't need one.  That is ok -- this is a
  # normal compilation that the losing compiler can handle.  If no
  # '.c' file was seen then we are probably linking.  That is also
  # ok.
  exec "$@"
fi

# Name of file we expect compiler to create.
cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`

# Create the lock directory.
# Note: use '[/\\:.-]' here to ensure that we don't use the same name
# that we are using for the .o file.  Also, base the name on the expected
# object file name, since that is what matters with a parallel build.
lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
while true; do
  if mkdir "$lockdir" >/dev/null 2>&1; then
    break
  fi
  sleep 1
done
# FIXME: race condition here if user kills between mkdir and trap.
trap "rmdir '$lockdir'; exit 1" 1 2 15

# Run the compile.
"$@"
ret=$?

if test -f "$cofile"; then
  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
elif test -f "${cofile}bj"; then
  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
fi

rmdir "$lockdir"
exit $ret

# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:
gperftools-2.4/config.guess0000755000000000000000000012355012454304622012762 00000000000000#! /bin/sh
# Attempt to guess a canonical system name.
#   Copyright 1992-2014 Free Software Foundation, Inc.

timestamp='2014-03-23'

# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see .
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that
# program.  This Exception is an additional permission under section 7
# of the GNU General Public License, version 3 ("GPLv3").
#
# Originally written by Per Bothner.
#
# You can get the latest version of this script from:
# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
#
# Please send patches with a ChangeLog entry to config-patches@gnu.org.


me=`echo "$0" | sed -e 's,.*/,,'`

usage="\
Usage: $0 [OPTION]

Output the configuration name of the system \`$me' is run on.

Operation modes:
  -h, --help         print this help, then exit
  -t, --time-stamp   print date of last modification, then exit
  -v, --version      print version number, then exit

Report bugs and patches to ."

version="\
GNU config.guess ($timestamp)

Originally written by Per Bothner.
Copyright 1992-2014 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."

help="
Try \`$me --help' for more information."

# Parse command line
while test $# -gt 0 ; do
  case $1 in
    --time-stamp | --time* | -t )
       echo "$timestamp" ; exit ;;
    --version | -v )
       echo "$version" ; exit ;;
    --help | --h* | -h )
       echo "$usage"; exit ;;
    -- )     # Stop option processing
       shift; break ;;
    - )	# Use stdin as input.
       break ;;
    -* )
       echo "$me: invalid option $1$help" >&2
       exit 1 ;;
    * )
       break ;;
  esac
done

if test $# != 0; then
  echo "$me: too many arguments$help" >&2
  exit 1
fi

trap 'exit 1' 1 2 15

# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
# compiler to aid in system detection is discouraged as it requires
# temporary files to be created and, as you can see below, it is a
# headache to deal with in a portable fashion.

# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
# use `HOST_CC' if defined, but it is deprecated.

# Portable tmp directory creation inspired by the Autoconf team.

set_cc_for_build='
trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
: ${TMPDIR=/tmp} ;
 { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
 { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
 { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
 { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
dummy=$tmp/dummy ;
tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
case $CC_FOR_BUILD,$HOST_CC,$CC in
 ,,)    echo "int x;" > $dummy.c ;
	for c in cc gcc c89 c99 ; do
	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
	     CC_FOR_BUILD="$c"; break ;
	  fi ;
	done ;
	if test x"$CC_FOR_BUILD" = x ; then
	  CC_FOR_BUILD=no_compiler_found ;
	fi
	;;
 ,,*)   CC_FOR_BUILD=$CC ;;
 ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
esac ; set_cc_for_build= ;'

# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
# (ghazi@noc.rutgers.edu 1994-08-24)
if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
	PATH=$PATH:/.attbin ; export PATH
fi

UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown

case "${UNAME_SYSTEM}" in
Linux|GNU|GNU/*)
	# If the system lacks a compiler, then just pick glibc.
	# We could probably try harder.
	LIBC=gnu

	eval $set_cc_for_build
	cat <<-EOF > $dummy.c
	#include 
	#if defined(__UCLIBC__)
	LIBC=uclibc
	#elif defined(__dietlibc__)
	LIBC=dietlibc
	#else
	LIBC=gnu
	#endif
	EOF
	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
	;;
esac

# Note: order is significant - the case branches are not exclusive.

case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
    *:NetBSD:*:*)
	# NetBSD (nbsd) targets should (where applicable) match one or
	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
	# switched to ELF, *-*-netbsd* would select the old
	# object file format.  This provides both forward
	# compatibility and a consistent mechanism for selecting the
	# object file format.
	#
	# Note: NetBSD doesn't particularly care about the vendor
	# portion of the name.  We always set it to "unknown".
	sysctl="sysctl -n hw.machine_arch"
	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
	case "${UNAME_MACHINE_ARCH}" in
	    armeb) machine=armeb-unknown ;;
	    arm*) machine=arm-unknown ;;
	    sh3el) machine=shl-unknown ;;
	    sh3eb) machine=sh-unknown ;;
	    sh5el) machine=sh5le-unknown ;;
	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
	esac
	# The Operating System including object format, if it has switched
	# to ELF recently, or will in the future.
	case "${UNAME_MACHINE_ARCH}" in
	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
		eval $set_cc_for_build
		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
			| grep -q __ELF__
		then
		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
		    # Return netbsd for either.  FIX?
		    os=netbsd
		else
		    os=netbsdelf
		fi
		;;
	    *)
		os=netbsd
		;;
	esac
	# The OS release
	# Debian GNU/NetBSD machines have a different userland, and
	# thus, need a distinct triplet. However, they do not need
	# kernel version information, so it can be replaced with a
	# suitable tag, in the style of linux-gnu.
	case "${UNAME_VERSION}" in
	    Debian*)
		release='-gnu'
		;;
	    *)
		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
		;;
	esac
	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
	# contains redundant information, the shorter form:
	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
	echo "${machine}-${os}${release}"
	exit ;;
    *:Bitrig:*:*)
	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
	exit ;;
    *:OpenBSD:*:*)
	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
	exit ;;
    *:ekkoBSD:*:*)
	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
	exit ;;
    *:SolidBSD:*:*)
	echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
	exit ;;
    macppc:MirBSD:*:*)
	echo powerpc-unknown-mirbsd${UNAME_RELEASE}
	exit ;;
    *:MirBSD:*:*)
	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
	exit ;;
    alpha:OSF1:*:*)
	case $UNAME_RELEASE in
	*4.0)
		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
		;;
	*5.*)
		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
		;;
	esac
	# According to Compaq, /usr/sbin/psrinfo has been available on
	# OSF/1 and Tru64 systems produced since 1995.  I hope that
	# covers most systems running today.  This code pipes the CPU
	# types through head -n 1, so we only detect the type of CPU 0.
	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
	case "$ALPHA_CPU_TYPE" in
	    "EV4 (21064)")
		UNAME_MACHINE="alpha" ;;
	    "EV4.5 (21064)")
		UNAME_MACHINE="alpha" ;;
	    "LCA4 (21066/21068)")
		UNAME_MACHINE="alpha" ;;
	    "EV5 (21164)")
		UNAME_MACHINE="alphaev5" ;;
	    "EV5.6 (21164A)")
		UNAME_MACHINE="alphaev56" ;;
	    "EV5.6 (21164PC)")
		UNAME_MACHINE="alphapca56" ;;
	    "EV5.7 (21164PC)")
		UNAME_MACHINE="alphapca57" ;;
	    "EV6 (21264)")
		UNAME_MACHINE="alphaev6" ;;
	    "EV6.7 (21264A)")
		UNAME_MACHINE="alphaev67" ;;
	    "EV6.8CB (21264C)")
		UNAME_MACHINE="alphaev68" ;;
	    "EV6.8AL (21264B)")
		UNAME_MACHINE="alphaev68" ;;
	    "EV6.8CX (21264D)")
		UNAME_MACHINE="alphaev68" ;;
	    "EV6.9A (21264/EV69A)")
		UNAME_MACHINE="alphaev69" ;;
	    "EV7 (21364)")
		UNAME_MACHINE="alphaev7" ;;
	    "EV7.9 (21364A)")
		UNAME_MACHINE="alphaev79" ;;
	esac
	# A Pn.n version is a patched version.
	# A Vn.n version is a released version.
	# A Tn.n version is a released field test version.
	# A Xn.n version is an unreleased experimental baselevel.
	# 1.2 uses "1.2" for uname -r.
	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
	exitcode=$?
	trap '' 0
	exit $exitcode ;;
    Alpha\ *:Windows_NT*:*)
	# How do we know it's Interix rather than the generic POSIX subsystem?
	# Should we change UNAME_MACHINE based on the output of uname instead
	# of the specific Alpha model?
	echo alpha-pc-interix
	exit ;;
    21064:Windows_NT:50:3)
	echo alpha-dec-winnt3.5
	exit ;;
    Amiga*:UNIX_System_V:4.0:*)
	echo m68k-unknown-sysv4
	exit ;;
    *:[Aa]miga[Oo][Ss]:*:*)
	echo ${UNAME_MACHINE}-unknown-amigaos
	exit ;;
    *:[Mm]orph[Oo][Ss]:*:*)
	echo ${UNAME_MACHINE}-unknown-morphos
	exit ;;
    *:OS/390:*:*)
	echo i370-ibm-openedition
	exit ;;
    *:z/VM:*:*)
	echo s390-ibm-zvmoe
	exit ;;
    *:OS400:*:*)
	echo powerpc-ibm-os400
	exit ;;
    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
	echo arm-acorn-riscix${UNAME_RELEASE}
	exit ;;
    arm*:riscos:*:*|arm*:RISCOS:*:*)
	echo arm-unknown-riscos
	exit ;;
    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
	echo hppa1.1-hitachi-hiuxmpp
	exit ;;
    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
	if test "`(/bin/universe) 2>/dev/null`" = att ; then
		echo pyramid-pyramid-sysv3
	else
		echo pyramid-pyramid-bsd
	fi
	exit ;;
    NILE*:*:*:dcosx)
	echo pyramid-pyramid-svr4
	exit ;;
    DRS?6000:unix:4.0:6*)
	echo sparc-icl-nx6
	exit ;;
    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
	case `/usr/bin/uname -p` in
	    sparc) echo sparc-icl-nx7; exit ;;
	esac ;;
    s390x:SunOS:*:*)
	echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
	exit ;;
    sun4H:SunOS:5.*:*)
	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
	exit ;;
    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
	exit ;;
    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
	echo i386-pc-auroraux${UNAME_RELEASE}
	exit ;;
    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
	eval $set_cc_for_build
	SUN_ARCH="i386"
	# If there is a compiler, see if it is configured for 64-bit objects.
	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
	# This test works for both compilers.
	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
		grep IS_64BIT_ARCH >/dev/null
	    then
		SUN_ARCH="x86_64"
	    fi
	fi
	echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
	exit ;;
    sun4*:SunOS:6*:*)
	# According to config.sub, this is the proper way to canonicalize
	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
	# it's likely to be more like Solaris than SunOS4.
	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
	exit ;;
    sun4*:SunOS:*:*)
	case "`/usr/bin/arch -k`" in
	    Series*|S4*)
		UNAME_RELEASE=`uname -v`
		;;
	esac
	# Japanese Language versions have a version number like `4.1.3-JL'.
	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
	exit ;;
    sun3*:SunOS:*:*)
	echo m68k-sun-sunos${UNAME_RELEASE}
	exit ;;
    sun*:*:4.2BSD:*)
	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
	case "`/bin/arch`" in
	    sun3)
		echo m68k-sun-sunos${UNAME_RELEASE}
		;;
	    sun4)
		echo sparc-sun-sunos${UNAME_RELEASE}
		;;
	esac
	exit ;;
    aushp:SunOS:*:*)
	echo sparc-auspex-sunos${UNAME_RELEASE}
	exit ;;
    # The situation for MiNT is a little confusing.  The machine name
    # can be virtually everything (everything which is not
    # "atarist" or "atariste" at least should have a processor
    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
    # to the lowercase version "mint" (or "freemint").  Finally
    # the system name "TOS" denotes a system which is actually not
    # MiNT.  But MiNT is downward compatible to TOS, so this should
    # be no problem.
    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
	echo m68k-atari-mint${UNAME_RELEASE}
	exit ;;
    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
	echo m68k-atari-mint${UNAME_RELEASE}
	exit ;;
    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
	echo m68k-atari-mint${UNAME_RELEASE}
	exit ;;
    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
	echo m68k-milan-mint${UNAME_RELEASE}
	exit ;;
    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
	echo m68k-hades-mint${UNAME_RELEASE}
	exit ;;
    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
	echo m68k-unknown-mint${UNAME_RELEASE}
	exit ;;
    m68k:machten:*:*)
	echo m68k-apple-machten${UNAME_RELEASE}
	exit ;;
    powerpc:machten:*:*)
	echo powerpc-apple-machten${UNAME_RELEASE}
	exit ;;
    RISC*:Mach:*:*)
	echo mips-dec-mach_bsd4.3
	exit ;;
    RISC*:ULTRIX:*:*)
	echo mips-dec-ultrix${UNAME_RELEASE}
	exit ;;
    VAX*:ULTRIX*:*:*)
	echo vax-dec-ultrix${UNAME_RELEASE}
	exit ;;
    2020:CLIX:*:* | 2430:CLIX:*:*)
	echo clipper-intergraph-clix${UNAME_RELEASE}
	exit ;;
    mips:*:*:UMIPS | mips:*:*:RISCos)
	eval $set_cc_for_build
	sed 's/^	//' << EOF >$dummy.c
#ifdef __cplusplus
#include   /* for printf() prototype */
	int main (int argc, char *argv[]) {
#else
	int main (argc, argv) int argc; char *argv[]; {
#endif
	#if defined (host_mips) && defined (MIPSEB)
	#if defined (SYSTYPE_SYSV)
	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
	#endif
	#if defined (SYSTYPE_SVR4)
	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
	#endif
	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
	#endif
	#endif
	  exit (-1);
	}
EOF
	$CC_FOR_BUILD -o $dummy $dummy.c &&
	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
	  SYSTEM_NAME=`$dummy $dummyarg` &&
	    { echo "$SYSTEM_NAME"; exit; }
	echo mips-mips-riscos${UNAME_RELEASE}
	exit ;;
    Motorola:PowerMAX_OS:*:*)
	echo powerpc-motorola-powermax
	exit ;;
    Motorola:*:4.3:PL8-*)
	echo powerpc-harris-powermax
	exit ;;
    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
	echo powerpc-harris-powermax
	exit ;;
    Night_Hawk:Power_UNIX:*:*)
	echo powerpc-harris-powerunix
	exit ;;
    m88k:CX/UX:7*:*)
	echo m88k-harris-cxux7
	exit ;;
    m88k:*:4*:R4*)
	echo m88k-motorola-sysv4
	exit ;;
    m88k:*:3*:R3*)
	echo m88k-motorola-sysv3
	exit ;;
    AViiON:dgux:*:*)
	# DG/UX returns AViiON for all architectures
	UNAME_PROCESSOR=`/usr/bin/uname -p`
	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
	then
	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
	       [ ${TARGET_BINARY_INTERFACE}x = x ]
	    then
		echo m88k-dg-dgux${UNAME_RELEASE}
	    else
		echo m88k-dg-dguxbcs${UNAME_RELEASE}
	    fi
	else
	    echo i586-dg-dgux${UNAME_RELEASE}
	fi
	exit ;;
    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
	echo m88k-dolphin-sysv3
	exit ;;
    M88*:*:R3*:*)
	# Delta 88k system running SVR3
	echo m88k-motorola-sysv3
	exit ;;
    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
	echo m88k-tektronix-sysv3
	exit ;;
    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
	echo m68k-tektronix-bsd
	exit ;;
    *:IRIX*:*:*)
	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
	exit ;;
    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
    i*86:AIX:*:*)
	echo i386-ibm-aix
	exit ;;
    ia64:AIX:*:*)
	if [ -x /usr/bin/oslevel ] ; then
		IBM_REV=`/usr/bin/oslevel`
	else
		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
	fi
	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
	exit ;;
    *:AIX:2:3)
	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
		eval $set_cc_for_build
		sed 's/^		//' << EOF >$dummy.c
		#include 

		main()
			{
			if (!__power_pc())
				exit(1);
			puts("powerpc-ibm-aix3.2.5");
			exit(0);
			}
EOF
		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
		then
			echo "$SYSTEM_NAME"
		else
			echo rs6000-ibm-aix3.2.5
		fi
	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
		echo rs6000-ibm-aix3.2.4
	else
		echo rs6000-ibm-aix3.2
	fi
	exit ;;
    *:AIX:*:[4567])
	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
		IBM_ARCH=rs6000
	else
		IBM_ARCH=powerpc
	fi
	if [ -x /usr/bin/oslevel ] ; then
		IBM_REV=`/usr/bin/oslevel`
	else
		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
	fi
	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
	exit ;;
    *:AIX:*:*)
	echo rs6000-ibm-aix
	exit ;;
    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
	echo romp-ibm-bsd4.4
	exit ;;
    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
	exit ;;                             # report: romp-ibm BSD 4.3
    *:BOSX:*:*)
	echo rs6000-bull-bosx
	exit ;;
    DPX/2?00:B.O.S.:*:*)
	echo m68k-bull-sysv3
	exit ;;
    9000/[34]??:4.3bsd:1.*:*)
	echo m68k-hp-bsd
	exit ;;
    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
	echo m68k-hp-bsd4.4
	exit ;;
    9000/[34678]??:HP-UX:*:*)
	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
	case "${UNAME_MACHINE}" in
	    9000/31? )            HP_ARCH=m68000 ;;
	    9000/[34]?? )         HP_ARCH=m68k ;;
	    9000/[678][0-9][0-9])
		if [ -x /usr/bin/getconf ]; then
		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
		    case "${sc_cpu_version}" in
		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
		      532)                      # CPU_PA_RISC2_0
			case "${sc_kernel_bits}" in
			  32) HP_ARCH="hppa2.0n" ;;
			  64) HP_ARCH="hppa2.0w" ;;
			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
			esac ;;
		    esac
		fi
		if [ "${HP_ARCH}" = "" ]; then
		    eval $set_cc_for_build
		    sed 's/^		//' << EOF >$dummy.c

		#define _HPUX_SOURCE
		#include 
		#include 

		int main ()
		{
		#if defined(_SC_KERNEL_BITS)
		    long bits = sysconf(_SC_KERNEL_BITS);
		#endif
		    long cpu  = sysconf (_SC_CPU_VERSION);

		    switch (cpu)
			{
			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
			case CPU_PA_RISC2_0:
		#if defined(_SC_KERNEL_BITS)
			    switch (bits)
				{
				case 64: puts ("hppa2.0w"); break;
				case 32: puts ("hppa2.0n"); break;
				default: puts ("hppa2.0"); break;
				} break;
		#else  /* !defined(_SC_KERNEL_BITS) */
			    puts ("hppa2.0"); break;
		#endif
			default: puts ("hppa1.0"); break;
			}
		    exit (0);
		}
EOF
		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
		    test -z "$HP_ARCH" && HP_ARCH=hppa
		fi ;;
	esac
	if [ ${HP_ARCH} = "hppa2.0w" ]
	then
	    eval $set_cc_for_build

	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
	    # generating 64-bit code.  GNU and HP use different nomenclature:
	    #
	    # $ CC_FOR_BUILD=cc ./config.guess
	    # => hppa2.0w-hp-hpux11.23
	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
	    # => hppa64-hp-hpux11.23

	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
		grep -q __LP64__
	    then
		HP_ARCH="hppa2.0w"
	    else
		HP_ARCH="hppa64"
	    fi
	fi
	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
	exit ;;
    ia64:HP-UX:*:*)
	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
	echo ia64-hp-hpux${HPUX_REV}
	exit ;;
    3050*:HI-UX:*:*)
	eval $set_cc_for_build
	sed 's/^	//' << EOF >$dummy.c
	#include 
	int
	main ()
	{
	  long cpu = sysconf (_SC_CPU_VERSION);
	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
	     results, however.  */
	  if (CPU_IS_PA_RISC (cpu))
	    {
	      switch (cpu)
		{
		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
		  default: puts ("hppa-hitachi-hiuxwe2"); break;
		}
	    }
	  else if (CPU_IS_HP_MC68K (cpu))
	    puts ("m68k-hitachi-hiuxwe2");
	  else puts ("unknown-hitachi-hiuxwe2");
	  exit (0);
	}
EOF
	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
		{ echo "$SYSTEM_NAME"; exit; }
	echo unknown-hitachi-hiuxwe2
	exit ;;
    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
	echo hppa1.1-hp-bsd
	exit ;;
    9000/8??:4.3bsd:*:*)
	echo hppa1.0-hp-bsd
	exit ;;
    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
	echo hppa1.0-hp-mpeix
	exit ;;
    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
	echo hppa1.1-hp-osf
	exit ;;
    hp8??:OSF1:*:*)
	echo hppa1.0-hp-osf
	exit ;;
    i*86:OSF1:*:*)
	if [ -x /usr/sbin/sysversion ] ; then
	    echo ${UNAME_MACHINE}-unknown-osf1mk
	else
	    echo ${UNAME_MACHINE}-unknown-osf1
	fi
	exit ;;
    parisc*:Lites*:*:*)
	echo hppa1.1-hp-lites
	exit ;;
    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
	echo c1-convex-bsd
	exit ;;
    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
	if getsysinfo -f scalar_acc
	then echo c32-convex-bsd
	else echo c2-convex-bsd
	fi
	exit ;;
    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
	echo c34-convex-bsd
	exit ;;
    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
	echo c38-convex-bsd
	exit ;;
    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
	echo c4-convex-bsd
	exit ;;
    CRAY*Y-MP:*:*:*)
	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
	exit ;;
    CRAY*[A-Z]90:*:*:*)
	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
	      -e 's/\.[^.]*$/.X/'
	exit ;;
    CRAY*TS:*:*:*)
	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
	exit ;;
    CRAY*T3E:*:*:*)
	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
	exit ;;
    CRAY*SV1:*:*:*)
	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
	exit ;;
    *:UNICOS/mp:*:*)
	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
	exit ;;
    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
	exit ;;
    5000:UNIX_System_V:4.*:*)
	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
	exit ;;
    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
	exit ;;
    sparc*:BSD/OS:*:*)
	echo sparc-unknown-bsdi${UNAME_RELEASE}
	exit ;;
    *:BSD/OS:*:*)
	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
	exit ;;
    *:FreeBSD:*:*)
	UNAME_PROCESSOR=`/usr/bin/uname -p`
	case ${UNAME_PROCESSOR} in
	    amd64)
		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
	    *)
		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
	esac
	exit ;;
    i*:CYGWIN*:*)
	echo ${UNAME_MACHINE}-pc-cygwin
	exit ;;
    *:MINGW64*:*)
	echo ${UNAME_MACHINE}-pc-mingw64
	exit ;;
    *:MINGW*:*)
	echo ${UNAME_MACHINE}-pc-mingw32
	exit ;;
    *:MSYS*:*)
	echo ${UNAME_MACHINE}-pc-msys
	exit ;;
    i*:windows32*:*)
	# uname -m includes "-pc" on this system.
	echo ${UNAME_MACHINE}-mingw32
	exit ;;
    i*:PW*:*)
	echo ${UNAME_MACHINE}-pc-pw32
	exit ;;
    *:Interix*:*)
	case ${UNAME_MACHINE} in
	    x86)
		echo i586-pc-interix${UNAME_RELEASE}
		exit ;;
	    authenticamd | genuineintel | EM64T)
		echo x86_64-unknown-interix${UNAME_RELEASE}
		exit ;;
	    IA64)
		echo ia64-unknown-interix${UNAME_RELEASE}
		exit ;;
	esac ;;
    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
	echo i${UNAME_MACHINE}-pc-mks
	exit ;;
    8664:Windows_NT:*)
	echo x86_64-pc-mks
	exit ;;
    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
	# How do we know it's Interix rather than the generic POSIX subsystem?
	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
	# UNAME_MACHINE based on the output of uname instead of i386?
	echo i586-pc-interix
	exit ;;
    i*:UWIN*:*)
	echo ${UNAME_MACHINE}-pc-uwin
	exit ;;
    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
	echo x86_64-unknown-cygwin
	exit ;;
    p*:CYGWIN*:*)
	echo powerpcle-unknown-cygwin
	exit ;;
    prep*:SunOS:5.*:*)
	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
	exit ;;
    *:GNU:*:*)
	# the GNU system
	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
	exit ;;
    *:GNU/*:*:*)
	# other systems with GNU libc and userland
	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
	exit ;;
    i*86:Minix:*:*)
	echo ${UNAME_MACHINE}-pc-minix
	exit ;;
    aarch64:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    aarch64_be:Linux:*:*)
	UNAME_MACHINE=aarch64_be
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    alpha:Linux:*:*)
	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
	  EV5)   UNAME_MACHINE=alphaev5 ;;
	  EV56)  UNAME_MACHINE=alphaev56 ;;
	  PCA56) UNAME_MACHINE=alphapca56 ;;
	  PCA57) UNAME_MACHINE=alphapca56 ;;
	  EV6)   UNAME_MACHINE=alphaev6 ;;
	  EV67)  UNAME_MACHINE=alphaev67 ;;
	  EV68*) UNAME_MACHINE=alphaev68 ;;
	esac
	objdump --private-headers /bin/sh | grep -q ld.so.1
	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    arc:Linux:*:* | arceb:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    arm*:Linux:*:*)
	eval $set_cc_for_build
	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
	    | grep -q __ARM_EABI__
	then
	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	else
	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
		| grep -q __ARM_PCS_VFP
	    then
		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
	    else
		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
	    fi
	fi
	exit ;;
    avr32*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    cris:Linux:*:*)
	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
	exit ;;
    crisv32:Linux:*:*)
	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
	exit ;;
    frv:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    hexagon:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    i*86:Linux:*:*)
	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
	exit ;;
    ia64:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    m32r*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    m68*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    mips:Linux:*:* | mips64:Linux:*:*)
	eval $set_cc_for_build
	sed 's/^	//' << EOF >$dummy.c
	#undef CPU
	#undef ${UNAME_MACHINE}
	#undef ${UNAME_MACHINE}el
	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
	CPU=${UNAME_MACHINE}el
	#else
	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
	CPU=${UNAME_MACHINE}
	#else
	CPU=
	#endif
	#endif
EOF
	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
	;;
    openrisc*:Linux:*:*)
	echo or1k-unknown-linux-${LIBC}
	exit ;;
    or32:Linux:*:* | or1k*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    padre:Linux:*:*)
	echo sparc-unknown-linux-${LIBC}
	exit ;;
    parisc64:Linux:*:* | hppa64:Linux:*:*)
	echo hppa64-unknown-linux-${LIBC}
	exit ;;
    parisc:Linux:*:* | hppa:Linux:*:*)
	# Look for CPU level
	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
	  *)    echo hppa-unknown-linux-${LIBC} ;;
	esac
	exit ;;
    ppc64:Linux:*:*)
	echo powerpc64-unknown-linux-${LIBC}
	exit ;;
    ppc:Linux:*:*)
	echo powerpc-unknown-linux-${LIBC}
	exit ;;
    ppc64le:Linux:*:*)
	echo powerpc64le-unknown-linux-${LIBC}
	exit ;;
    ppcle:Linux:*:*)
	echo powerpcle-unknown-linux-${LIBC}
	exit ;;
    s390:Linux:*:* | s390x:Linux:*:*)
	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
	exit ;;
    sh64*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    sh*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    sparc:Linux:*:* | sparc64:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    tile*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    vax:Linux:*:*)
	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
	exit ;;
    x86_64:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    xtensa*:Linux:*:*)
	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
	exit ;;
    i*86:DYNIX/ptx:4*:*)
	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
	# earlier versions are messed up and put the nodename in both
	# sysname and nodename.
	echo i386-sequent-sysv4
	exit ;;
    i*86:UNIX_SV:4.2MP:2.*)
	# Unixware is an offshoot of SVR4, but it has its own version
	# number series starting with 2...
	# I am not positive that other SVR4 systems won't match this,
	# I just have to hope.  -- rms.
	# Use sysv4.2uw... so that sysv4* matches it.
	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
	exit ;;
    i*86:OS/2:*:*)
	# If we were able to find `uname', then EMX Unix compatibility
	# is probably installed.
	echo ${UNAME_MACHINE}-pc-os2-emx
	exit ;;
    i*86:XTS-300:*:STOP)
	echo ${UNAME_MACHINE}-unknown-stop
	exit ;;
    i*86:atheos:*:*)
	echo ${UNAME_MACHINE}-unknown-atheos
	exit ;;
    i*86:syllable:*:*)
	echo ${UNAME_MACHINE}-pc-syllable
	exit ;;
    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
	echo i386-unknown-lynxos${UNAME_RELEASE}
	exit ;;
    i*86:*DOS:*:*)
	echo ${UNAME_MACHINE}-pc-msdosdjgpp
	exit ;;
    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
	else
		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
	fi
	exit ;;
    i*86:*:5:[678]*)
	# UnixWare 7.x, OpenUNIX and OpenServer 6.
	case `/bin/uname -X | grep "^Machine"` in
	    *486*)	     UNAME_MACHINE=i486 ;;
	    *Pentium)	     UNAME_MACHINE=i586 ;;
	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
	esac
	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
	exit ;;
    i*86:*:3.2:*)
	if test -f /usr/options/cb.name; then
		UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then
		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
			&& UNAME_MACHINE=i586
		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
			&& UNAME_MACHINE=i686
		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
			&& UNAME_MACHINE=i686
		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
	else
		echo ${UNAME_MACHINE}-pc-sysv32
	fi
	exit ;;
    pc:*:*:*)
	# Left here for compatibility:
	# uname -m prints for DJGPP always 'pc', but it prints nothing about
	# the processor, so we play safe by assuming i586.
	# Note: whatever this is, it MUST be the same as what config.sub
	# prints for the "djgpp" host, or else GDB configury will decide that
	# this is a cross-build.
	echo i586-pc-msdosdjgpp
	exit ;;
    Intel:Mach:3*:*)
	echo i386-pc-mach3
	exit ;;
    paragon:*:*:*)
	echo i860-intel-osf1
	exit ;;
    i860:*:4.*:*) # i860-SVR4
	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
	else # Add other i860-SVR4 vendors below as they are discovered.
	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
	fi
	exit ;;
    mini*:CTIX:SYS*5:*)
	# "miniframe"
	echo m68010-convergent-sysv
	exit ;;
    mc68k:UNIX:SYSTEM5:3.51m)
	echo m68k-convergent-sysv
	exit ;;
    M680?0:D-NIX:5.3:*)
	echo m68k-diab-dnix
	exit ;;
    M68*:*:R3V[5678]*:*)
	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
	OS_REL=''
	test -r /etc/.relid \
	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
	  && { echo i486-ncr-sysv4; exit; } ;;
    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
	OS_REL='.3'
	test -r /etc/.relid \
	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
	    && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
	echo m68k-unknown-lynxos${UNAME_RELEASE}
	exit ;;
    mc68030:UNIX_System_V:4.*:*)
	echo m68k-atari-sysv4
	exit ;;
    TSUNAMI:LynxOS:2.*:*)
	echo sparc-unknown-lynxos${UNAME_RELEASE}
	exit ;;
    rs6000:LynxOS:2.*:*)
	echo rs6000-unknown-lynxos${UNAME_RELEASE}
	exit ;;
    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
	echo powerpc-unknown-lynxos${UNAME_RELEASE}
	exit ;;
    SM[BE]S:UNIX_SV:*:*)
	echo mips-dde-sysv${UNAME_RELEASE}
	exit ;;
    RM*:ReliantUNIX-*:*:*)
	echo mips-sni-sysv4
	exit ;;
    RM*:SINIX-*:*:*)
	echo mips-sni-sysv4
	exit ;;
    *:SINIX-*:*:*)
	if uname -p 2>/dev/null >/dev/null ; then
		UNAME_MACHINE=`(uname -p) 2>/dev/null`
		echo ${UNAME_MACHINE}-sni-sysv4
	else
		echo ns32k-sni-sysv
	fi
	exit ;;
    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
			# says 
	echo i586-unisys-sysv4
	exit ;;
    *:UNIX_System_V:4*:FTX*)
	# From Gerald Hewes .
	# How about differentiating between stratus architectures? -djm
	echo hppa1.1-stratus-sysv4
	exit ;;
    *:*:*:FTX*)
	# From seanf@swdc.stratus.com.
	echo i860-stratus-sysv4
	exit ;;
    i*86:VOS:*:*)
	# From Paul.Green@stratus.com.
	echo ${UNAME_MACHINE}-stratus-vos
	exit ;;
    *:VOS:*:*)
	# From Paul.Green@stratus.com.
	echo hppa1.1-stratus-vos
	exit ;;
    mc68*:A/UX:*:*)
	echo m68k-apple-aux${UNAME_RELEASE}
	exit ;;
    news*:NEWS-OS:6*:*)
	echo mips-sony-newsos6
	exit ;;
    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
	if [ -d /usr/nec ]; then
		echo mips-nec-sysv${UNAME_RELEASE}
	else
		echo mips-unknown-sysv${UNAME_RELEASE}
	fi
	exit ;;
    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
	echo powerpc-be-beos
	exit ;;
    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
	echo powerpc-apple-beos
	exit ;;
    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
	echo i586-pc-beos
	exit ;;
    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
	echo i586-pc-haiku
	exit ;;
    x86_64:Haiku:*:*)
	echo x86_64-unknown-haiku
	exit ;;
    SX-4:SUPER-UX:*:*)
	echo sx4-nec-superux${UNAME_RELEASE}
	exit ;;
    SX-5:SUPER-UX:*:*)
	echo sx5-nec-superux${UNAME_RELEASE}
	exit ;;
    SX-6:SUPER-UX:*:*)
	echo sx6-nec-superux${UNAME_RELEASE}
	exit ;;
    SX-7:SUPER-UX:*:*)
	echo sx7-nec-superux${UNAME_RELEASE}
	exit ;;
    SX-8:SUPER-UX:*:*)
	echo sx8-nec-superux${UNAME_RELEASE}
	exit ;;
    SX-8R:SUPER-UX:*:*)
	echo sx8r-nec-superux${UNAME_RELEASE}
	exit ;;
    Power*:Rhapsody:*:*)
	echo powerpc-apple-rhapsody${UNAME_RELEASE}
	exit ;;
    *:Rhapsody:*:*)
	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
	exit ;;
    *:Darwin:*:*)
	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
	eval $set_cc_for_build
	if test "$UNAME_PROCESSOR" = unknown ; then
	    UNAME_PROCESSOR=powerpc
	fi
	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
	    if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
		    (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
		    grep IS_64BIT_ARCH >/dev/null
		then
		    case $UNAME_PROCESSOR in
			i386) UNAME_PROCESSOR=x86_64 ;;
			powerpc) UNAME_PROCESSOR=powerpc64 ;;
		    esac
		fi
	    fi
	elif test "$UNAME_PROCESSOR" = i386 ; then
	    # Avoid executing cc on OS X 10.9, as it ships with a stub
	    # that puts up a graphical alert prompting to install
	    # developer tools.  Any system running Mac OS X 10.7 or
	    # later (Darwin 11 and later) is required to have a 64-bit
	    # processor. This is not true of the ARM version of Darwin
	    # that Apple uses in portable devices.
	    UNAME_PROCESSOR=x86_64
	fi
	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
	exit ;;
    *:procnto*:*:* | *:QNX:[0123456789]*:*)
	UNAME_PROCESSOR=`uname -p`
	if test "$UNAME_PROCESSOR" = "x86"; then
		UNAME_PROCESSOR=i386
		UNAME_MACHINE=pc
	fi
	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
	exit ;;
    *:QNX:*:4*)
	echo i386-pc-qnx
	exit ;;
    NEO-?:NONSTOP_KERNEL:*:*)
	echo neo-tandem-nsk${UNAME_RELEASE}
	exit ;;
    NSE-*:NONSTOP_KERNEL:*:*)
	echo nse-tandem-nsk${UNAME_RELEASE}
	exit ;;
    NSR-?:NONSTOP_KERNEL:*:*)
	echo nsr-tandem-nsk${UNAME_RELEASE}
	exit ;;
    *:NonStop-UX:*:*)
	echo mips-compaq-nonstopux
	exit ;;
    BS2000:POSIX*:*:*)
	echo bs2000-siemens-sysv
	exit ;;
    DS/*:UNIX_System_V:*:*)
	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
	exit ;;
    *:Plan9:*:*)
	# "uname -m" is not consistent, so use $cputype instead. 386
	# is converted to i386 for consistency with other x86
	# operating systems.
	if test "$cputype" = "386"; then
	    UNAME_MACHINE=i386
	else
	    UNAME_MACHINE="$cputype"
	fi
	echo ${UNAME_MACHINE}-unknown-plan9
	exit ;;
    *:TOPS-10:*:*)
	echo pdp10-unknown-tops10
	exit ;;
    *:TENEX:*:*)
	echo pdp10-unknown-tenex
	exit ;;
    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
	echo pdp10-dec-tops20
	exit ;;
    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
	echo pdp10-xkl-tops20
	exit ;;
    *:TOPS-20:*:*)
	echo pdp10-unknown-tops20
	exit ;;
    *:ITS:*:*)
	echo pdp10-unknown-its
	exit ;;
    SEI:*:*:SEIUX)
	echo mips-sei-seiux${UNAME_RELEASE}
	exit ;;
    *:DragonFly:*:*)
	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
	exit ;;
    *:*VMS:*:*)
	UNAME_MACHINE=`(uname -p) 2>/dev/null`
	case "${UNAME_MACHINE}" in
	    A*) echo alpha-dec-vms ; exit ;;
	    I*) echo ia64-dec-vms ; exit ;;
	    V*) echo vax-dec-vms ; exit ;;
	esac ;;
    *:XENIX:*:SysV)
	echo i386-pc-xenix
	exit ;;
    i*86:skyos:*:*)
	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
	exit ;;
    i*86:rdos:*:*)
	echo ${UNAME_MACHINE}-pc-rdos
	exit ;;
    i*86:AROS:*:*)
	echo ${UNAME_MACHINE}-pc-aros
	exit ;;
    x86_64:VMkernel:*:*)
	echo ${UNAME_MACHINE}-unknown-esx
	exit ;;
esac

cat >&2 < in order to provide the needed
information to handle your system.

config.guess timestamp = $timestamp

uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`

hostinfo               = `(hostinfo) 2>/dev/null`
/bin/universe          = `(/bin/universe) 2>/dev/null`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
/bin/arch              = `(/bin/arch) 2>/dev/null`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`

UNAME_MACHINE = ${UNAME_MACHINE}
UNAME_RELEASE = ${UNAME_RELEASE}
UNAME_SYSTEM  = ${UNAME_SYSTEM}
UNAME_VERSION = ${UNAME_VERSION}
EOF

exit 1

# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "timestamp='"
# time-stamp-format: "%:y-%02m-%02d"
# time-stamp-end: "'"
# End:
gperftools-2.4/config.sub0000755000000000000000000010577512454304622012436 00000000000000#! /bin/sh
# Configuration validation subroutine script.
#   Copyright 1992-2014 Free Software Foundation, Inc.

timestamp='2014-09-11'

# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see .
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that
# program.  This Exception is an additional permission under section 7
# of the GNU General Public License, version 3 ("GPLv3").


# Please send patches with a ChangeLog entry to config-patches@gnu.org.
#
# Configuration subroutine to validate and canonicalize a configuration type.
# Supply the specified configuration type as an argument.
# If it is invalid, we print an error message on stderr and exit with code 1.
# Otherwise, we print the canonical config type on stdout and succeed.

# You can get the latest version of this script from:
# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD

# This file is supposed to be the same for all GNU packages
# and recognize all the CPU types, system types and aliases
# that are meaningful with *any* GNU software.
# Each package is responsible for reporting which valid configurations
# it does not support.  The user should be able to distinguish
# a failure to support a valid configuration from a meaningless
# configuration.

# The goal of this file is to map all the various variations of a given
# machine specification into a single specification in the form:
#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
# or in some cases, the newer four-part form:
#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
# It is wrong to echo any other type of specification.

me=`echo "$0" | sed -e 's,.*/,,'`

usage="\
Usage: $0 [OPTION] CPU-MFR-OPSYS
       $0 [OPTION] ALIAS

Canonicalize a configuration name.

Operation modes:
  -h, --help         print this help, then exit
  -t, --time-stamp   print date of last modification, then exit
  -v, --version      print version number, then exit

Report bugs and patches to ."

version="\
GNU config.sub ($timestamp)

Copyright 1992-2014 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."

help="
Try \`$me --help' for more information."

# Parse command line
while test $# -gt 0 ; do
  case $1 in
    --time-stamp | --time* | -t )
       echo "$timestamp" ; exit ;;
    --version | -v )
       echo "$version" ; exit ;;
    --help | --h* | -h )
       echo "$usage"; exit ;;
    -- )     # Stop option processing
       shift; break ;;
    - )	# Use stdin as input.
       break ;;
    -* )
       echo "$me: invalid option $1$help"
       exit 1 ;;

    *local*)
       # First pass through any local machine types.
       echo $1
       exit ;;

    * )
       break ;;
  esac
done

case $# in
 0) echo "$me: missing argument$help" >&2
    exit 1;;
 1) ;;
 *) echo "$me: too many arguments$help" >&2
    exit 1;;
esac

# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
# Here we must recognize all the valid KERNEL-OS combinations.
maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
case $maybe_os in
  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
  knetbsd*-gnu* | netbsd*-gnu* | \
  kopensolaris*-gnu* | \
  storm-chaos* | os2-emx* | rtmk-nova*)
    os=-$maybe_os
    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
    ;;
  android-linux)
    os=-linux-android
    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
    ;;
  *)
    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
    if [ $basic_machine != $1 ]
    then os=`echo $1 | sed 's/.*-/-/'`
    else os=; fi
    ;;
esac

### Let's recognize common machines as not being operating systems so
### that things like config.sub decstation-3100 work.  We also
### recognize some manufacturers as not being operating systems, so we
### can provide default operating systems below.
case $os in
	-sun*os*)
		# Prevent following clause from handling this invalid input.
		;;
	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
	-apple | -axis | -knuth | -cray | -microblaze*)
		os=
		basic_machine=$1
		;;
	-bluegene*)
		os=-cnk
		;;
	-sim | -cisco | -oki | -wec | -winbond)
		os=
		basic_machine=$1
		;;
	-scout)
		;;
	-wrs)
		os=-vxworks
		basic_machine=$1
		;;
	-chorusos*)
		os=-chorusos
		basic_machine=$1
		;;
	-chorusrdb)
		os=-chorusrdb
		basic_machine=$1
		;;
	-hiux*)
		os=-hiuxwe2
		;;
	-sco6)
		os=-sco5v6
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-sco5)
		os=-sco3.2v5
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-sco4)
		os=-sco3.2v4
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-sco3.2.[4-9]*)
		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-sco3.2v[4-9]*)
		# Don't forget version if it is 3.2v4 or newer.
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-sco5v6*)
		# Don't forget version if it is 3.2v4 or newer.
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-sco*)
		os=-sco3.2v2
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-udk*)
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-isc)
		os=-isc2.2
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-clix*)
		basic_machine=clipper-intergraph
		;;
	-isc*)
		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
		;;
	-lynx*178)
		os=-lynxos178
		;;
	-lynx*5)
		os=-lynxos5
		;;
	-lynx*)
		os=-lynxos
		;;
	-ptx*)
		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
		;;
	-windowsnt*)
		os=`echo $os | sed -e 's/windowsnt/winnt/'`
		;;
	-psos*)
		os=-psos
		;;
	-mint | -mint[0-9]*)
		basic_machine=m68k-atari
		os=-mint
		;;
esac

# Decode aliases for certain CPU-COMPANY combinations.
case $basic_machine in
	# Recognize the basic CPU types without company name.
	# Some are omitted here because they have special meanings below.
	1750a | 580 \
	| a29k \
	| aarch64 | aarch64_be \
	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
	| am33_2.0 \
	| arc | arceb \
	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
	| avr | avr32 \
	| be32 | be64 \
	| bfin \
	| c4x | c8051 | clipper \
	| d10v | d30v | dlx | dsp16xx \
	| epiphany \
	| fido | fr30 | frv \
	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
	| hexagon \
	| i370 | i860 | i960 | ia64 \
	| ip2k | iq2000 \
	| k1om \
	| le32 | le64 \
	| lm32 \
	| m32c | m32r | m32rle | m68000 | m68k | m88k \
	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
	| mips | mipsbe | mipseb | mipsel | mipsle \
	| mips16 \
	| mips64 | mips64el \
	| mips64octeon | mips64octeonel \
	| mips64orion | mips64orionel \
	| mips64r5900 | mips64r5900el \
	| mips64vr | mips64vrel \
	| mips64vr4100 | mips64vr4100el \
	| mips64vr4300 | mips64vr4300el \
	| mips64vr5000 | mips64vr5000el \
	| mips64vr5900 | mips64vr5900el \
	| mipsisa32 | mipsisa32el \
	| mipsisa32r2 | mipsisa32r2el \
	| mipsisa32r6 | mipsisa32r6el \
	| mipsisa64 | mipsisa64el \
	| mipsisa64r2 | mipsisa64r2el \
	| mipsisa64r6 | mipsisa64r6el \
	| mipsisa64sb1 | mipsisa64sb1el \
	| mipsisa64sr71k | mipsisa64sr71kel \
	| mipsr5900 | mipsr5900el \
	| mipstx39 | mipstx39el \
	| mn10200 | mn10300 \
	| moxie \
	| mt \
	| msp430 \
	| nds32 | nds32le | nds32be \
	| nios | nios2 | nios2eb | nios2el \
	| ns16k | ns32k \
	| open8 | or1k | or1knd | or32 \
	| pdp10 | pdp11 | pj | pjl \
	| powerpc | powerpc64 | powerpc64le | powerpcle \
	| pyramid \
	| riscv32 | riscv64 \
	| rl78 | rx \
	| score \
	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
	| sh64 | sh64le \
	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
	| spu \
	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
	| ubicom32 \
	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
	| we32k \
	| x86 | xc16x | xstormy16 | xtensa \
	| z8k | z80)
		basic_machine=$basic_machine-unknown
		;;
	c54x)
		basic_machine=tic54x-unknown
		;;
	c55x)
		basic_machine=tic55x-unknown
		;;
	c6x)
		basic_machine=tic6x-unknown
		;;
	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
		basic_machine=$basic_machine-unknown
		os=-none
		;;
	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
		;;
	ms1)
		basic_machine=mt-unknown
		;;

	strongarm | thumb | xscale)
		basic_machine=arm-unknown
		;;
	xgate)
		basic_machine=$basic_machine-unknown
		os=-none
		;;
	xscaleeb)
		basic_machine=armeb-unknown
		;;

	xscaleel)
		basic_machine=armel-unknown
		;;

	# We use `pc' rather than `unknown'
	# because (1) that's what they normally are, and
	# (2) the word "unknown" tends to confuse beginning users.
	i*86 | x86_64)
	  basic_machine=$basic_machine-pc
	  ;;
	# Object if more than one company name word.
	*-*-*)
		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
		exit 1
		;;
	# Recognize the basic CPU types with company name.
	580-* \
	| a29k-* \
	| aarch64-* | aarch64_be-* \
	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
	| avr-* | avr32-* \
	| be32-* | be64-* \
	| bfin-* | bs2000-* \
	| c[123]* | c30-* | [cjt]90-* | c4x-* \
	| c8051-* | clipper-* | craynv-* | cydra-* \
	| d10v-* | d30v-* | dlx-* \
	| elxsi-* \
	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
	| h8300-* | h8500-* \
	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
	| hexagon-* \
	| i*86-* | i860-* | i960-* | ia64-* \
	| ip2k-* | iq2000-* \
	| k1om-* \
	| le32-* | le64-* \
	| lm32-* \
	| m32c-* | m32r-* | m32rle-* \
	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
	| microblaze-* | microblazeel-* \
	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
	| mips16-* \
	| mips64-* | mips64el-* \
	| mips64octeon-* | mips64octeonel-* \
	| mips64orion-* | mips64orionel-* \
	| mips64r5900-* | mips64r5900el-* \
	| mips64vr-* | mips64vrel-* \
	| mips64vr4100-* | mips64vr4100el-* \
	| mips64vr4300-* | mips64vr4300el-* \
	| mips64vr5000-* | mips64vr5000el-* \
	| mips64vr5900-* | mips64vr5900el-* \
	| mipsisa32-* | mipsisa32el-* \
	| mipsisa32r2-* | mipsisa32r2el-* \
	| mipsisa32r6-* | mipsisa32r6el-* \
	| mipsisa64-* | mipsisa64el-* \
	| mipsisa64r2-* | mipsisa64r2el-* \
	| mipsisa64r6-* | mipsisa64r6el-* \
	| mipsisa64sb1-* | mipsisa64sb1el-* \
	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
	| mipsr5900-* | mipsr5900el-* \
	| mipstx39-* | mipstx39el-* \
	| mmix-* \
	| mt-* \
	| msp430-* \
	| nds32-* | nds32le-* | nds32be-* \
	| nios-* | nios2-* | nios2eb-* | nios2el-* \
	| none-* | np1-* | ns16k-* | ns32k-* \
	| open8-* \
	| or1k*-* \
	| orion-* \
	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
	| pyramid-* \
	| rl78-* | romp-* | rs6000-* | rx-* \
	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
	| sparclite-* \
	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
	| tahoe-* \
	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
	| tile*-* \
	| tron-* \
	| ubicom32-* \
	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
	| vax-* \
	| we32k-* \
	| x86-* | x86_64-* | xc16x-* | xps100-* \
	| xstormy16-* | xtensa*-* \
	| ymp-* \
	| z8k-* | z80-*)
		;;
	# Recognize the basic CPU types without company name, with glob match.
	xtensa*)
		basic_machine=$basic_machine-unknown
		;;
	# Recognize the various machine names and aliases which stand
	# for a CPU type and a company and sometimes even an OS.
	386bsd)
		basic_machine=i386-unknown
		os=-bsd
		;;
	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
		basic_machine=m68000-att
		;;
	3b*)
		basic_machine=we32k-att
		;;
	a29khif)
		basic_machine=a29k-amd
		os=-udi
		;;
	abacus)
		basic_machine=abacus-unknown
		;;
	adobe68k)
		basic_machine=m68010-adobe
		os=-scout
		;;
	alliant | fx80)
		basic_machine=fx80-alliant
		;;
	altos | altos3068)
		basic_machine=m68k-altos
		;;
	am29k)
		basic_machine=a29k-none
		os=-bsd
		;;
	amd64)
		basic_machine=x86_64-pc
		;;
	amd64-*)
		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	amdahl)
		basic_machine=580-amdahl
		os=-sysv
		;;
	amiga | amiga-*)
		basic_machine=m68k-unknown
		;;
	amigaos | amigados)
		basic_machine=m68k-unknown
		os=-amigaos
		;;
	amigaunix | amix)
		basic_machine=m68k-unknown
		os=-sysv4
		;;
	apollo68)
		basic_machine=m68k-apollo
		os=-sysv
		;;
	apollo68bsd)
		basic_machine=m68k-apollo
		os=-bsd
		;;
	aros)
		basic_machine=i386-pc
		os=-aros
		;;
	aux)
		basic_machine=m68k-apple
		os=-aux
		;;
	balance)
		basic_machine=ns32k-sequent
		os=-dynix
		;;
	blackfin)
		basic_machine=bfin-unknown
		os=-linux
		;;
	blackfin-*)
		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
		os=-linux
		;;
	bluegene*)
		basic_machine=powerpc-ibm
		os=-cnk
		;;
	c54x-*)
		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	c55x-*)
		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	c6x-*)
		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	c90)
		basic_machine=c90-cray
		os=-unicos
		;;
	cegcc)
		basic_machine=arm-unknown
		os=-cegcc
		;;
	convex-c1)
		basic_machine=c1-convex
		os=-bsd
		;;
	convex-c2)
		basic_machine=c2-convex
		os=-bsd
		;;
	convex-c32)
		basic_machine=c32-convex
		os=-bsd
		;;
	convex-c34)
		basic_machine=c34-convex
		os=-bsd
		;;
	convex-c38)
		basic_machine=c38-convex
		os=-bsd
		;;
	cray | j90)
		basic_machine=j90-cray
		os=-unicos
		;;
	craynv)
		basic_machine=craynv-cray
		os=-unicosmp
		;;
	cr16 | cr16-*)
		basic_machine=cr16-unknown
		os=-elf
		;;
	crds | unos)
		basic_machine=m68k-crds
		;;
	crisv32 | crisv32-* | etraxfs*)
		basic_machine=crisv32-axis
		;;
	cris | cris-* | etrax*)
		basic_machine=cris-axis
		;;
	crx)
		basic_machine=crx-unknown
		os=-elf
		;;
	da30 | da30-*)
		basic_machine=m68k-da30
		;;
	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
		basic_machine=mips-dec
		;;
	decsystem10* | dec10*)
		basic_machine=pdp10-dec
		os=-tops10
		;;
	decsystem20* | dec20*)
		basic_machine=pdp10-dec
		os=-tops20
		;;
	delta | 3300 | motorola-3300 | motorola-delta \
	      | 3300-motorola | delta-motorola)
		basic_machine=m68k-motorola
		;;
	delta88)
		basic_machine=m88k-motorola
		os=-sysv3
		;;
	dicos)
		basic_machine=i686-pc
		os=-dicos
		;;
	djgpp)
		basic_machine=i586-pc
		os=-msdosdjgpp
		;;
	dpx20 | dpx20-*)
		basic_machine=rs6000-bull
		os=-bosx
		;;
	dpx2* | dpx2*-bull)
		basic_machine=m68k-bull
		os=-sysv3
		;;
	ebmon29k)
		basic_machine=a29k-amd
		os=-ebmon
		;;
	elxsi)
		basic_machine=elxsi-elxsi
		os=-bsd
		;;
	encore | umax | mmax)
		basic_machine=ns32k-encore
		;;
	es1800 | OSE68k | ose68k | ose | OSE)
		basic_machine=m68k-ericsson
		os=-ose
		;;
	fx2800)
		basic_machine=i860-alliant
		;;
	genix)
		basic_machine=ns32k-ns
		;;
	gmicro)
		basic_machine=tron-gmicro
		os=-sysv
		;;
	go32)
		basic_machine=i386-pc
		os=-go32
		;;
	h3050r* | hiux*)
		basic_machine=hppa1.1-hitachi
		os=-hiuxwe2
		;;
	h8300hms)
		basic_machine=h8300-hitachi
		os=-hms
		;;
	h8300xray)
		basic_machine=h8300-hitachi
		os=-xray
		;;
	h8500hms)
		basic_machine=h8500-hitachi
		os=-hms
		;;
	harris)
		basic_machine=m88k-harris
		os=-sysv3
		;;
	hp300-*)
		basic_machine=m68k-hp
		;;
	hp300bsd)
		basic_machine=m68k-hp
		os=-bsd
		;;
	hp300hpux)
		basic_machine=m68k-hp
		os=-hpux
		;;
	hp3k9[0-9][0-9] | hp9[0-9][0-9])
		basic_machine=hppa1.0-hp
		;;
	hp9k2[0-9][0-9] | hp9k31[0-9])
		basic_machine=m68000-hp
		;;
	hp9k3[2-9][0-9])
		basic_machine=m68k-hp
		;;
	hp9k6[0-9][0-9] | hp6[0-9][0-9])
		basic_machine=hppa1.0-hp
		;;
	hp9k7[0-79][0-9] | hp7[0-79][0-9])
		basic_machine=hppa1.1-hp
		;;
	hp9k78[0-9] | hp78[0-9])
		# FIXME: really hppa2.0-hp
		basic_machine=hppa1.1-hp
		;;
	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
		# FIXME: really hppa2.0-hp
		basic_machine=hppa1.1-hp
		;;
	hp9k8[0-9][13679] | hp8[0-9][13679])
		basic_machine=hppa1.1-hp
		;;
	hp9k8[0-9][0-9] | hp8[0-9][0-9])
		basic_machine=hppa1.0-hp
		;;
	hppa-next)
		os=-nextstep3
		;;
	hppaosf)
		basic_machine=hppa1.1-hp
		os=-osf
		;;
	hppro)
		basic_machine=hppa1.1-hp
		os=-proelf
		;;
	i370-ibm* | ibm*)
		basic_machine=i370-ibm
		;;
	i*86v32)
		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
		os=-sysv32
		;;
	i*86v4*)
		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
		os=-sysv4
		;;
	i*86v)
		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
		os=-sysv
		;;
	i*86sol2)
		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
		os=-solaris2
		;;
	i386mach)
		basic_machine=i386-mach
		os=-mach
		;;
	i386-vsta | vsta)
		basic_machine=i386-unknown
		os=-vsta
		;;
	iris | iris4d)
		basic_machine=mips-sgi
		case $os in
		    -irix*)
			;;
		    *)
			os=-irix4
			;;
		esac
		;;
	isi68 | isi)
		basic_machine=m68k-isi
		os=-sysv
		;;
	m68knommu)
		basic_machine=m68k-unknown
		os=-linux
		;;
	m68knommu-*)
		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
		os=-linux
		;;
	m88k-omron*)
		basic_machine=m88k-omron
		;;
	magnum | m3230)
		basic_machine=mips-mips
		os=-sysv
		;;
	merlin)
		basic_machine=ns32k-utek
		os=-sysv
		;;
	microblaze*)
		basic_machine=microblaze-xilinx
		;;
	mingw64)
		basic_machine=x86_64-pc
		os=-mingw64
		;;
	mingw32)
		basic_machine=i686-pc
		os=-mingw32
		;;
	mingw32ce)
		basic_machine=arm-unknown
		os=-mingw32ce
		;;
	miniframe)
		basic_machine=m68000-convergent
		;;
	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
		basic_machine=m68k-atari
		os=-mint
		;;
	mips3*-*)
		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
		;;
	mips3*)
		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
		;;
	monitor)
		basic_machine=m68k-rom68k
		os=-coff
		;;
	morphos)
		basic_machine=powerpc-unknown
		os=-morphos
		;;
	moxiebox)
		basic_machine=moxie-unknown
		os=-moxiebox
		;;
	msdos)
		basic_machine=i386-pc
		os=-msdos
		;;
	ms1-*)
		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
		;;
	msys)
		basic_machine=i686-pc
		os=-msys
		;;
	mvs)
		basic_machine=i370-ibm
		os=-mvs
		;;
	nacl)
		basic_machine=le32-unknown
		os=-nacl
		;;
	ncr3000)
		basic_machine=i486-ncr
		os=-sysv4
		;;
	netbsd386)
		basic_machine=i386-unknown
		os=-netbsd
		;;
	netwinder)
		basic_machine=armv4l-rebel
		os=-linux
		;;
	news | news700 | news800 | news900)
		basic_machine=m68k-sony
		os=-newsos
		;;
	news1000)
		basic_machine=m68030-sony
		os=-newsos
		;;
	news-3600 | risc-news)
		basic_machine=mips-sony
		os=-newsos
		;;
	necv70)
		basic_machine=v70-nec
		os=-sysv
		;;
	next | m*-next )
		basic_machine=m68k-next
		case $os in
		    -nextstep* )
			;;
		    -ns2*)
		      os=-nextstep2
			;;
		    *)
		      os=-nextstep3
			;;
		esac
		;;
	nh3000)
		basic_machine=m68k-harris
		os=-cxux
		;;
	nh[45]000)
		basic_machine=m88k-harris
		os=-cxux
		;;
	nindy960)
		basic_machine=i960-intel
		os=-nindy
		;;
	mon960)
		basic_machine=i960-intel
		os=-mon960
		;;
	nonstopux)
		basic_machine=mips-compaq
		os=-nonstopux
		;;
	np1)
		basic_machine=np1-gould
		;;
	neo-tandem)
		basic_machine=neo-tandem
		;;
	nse-tandem)
		basic_machine=nse-tandem
		;;
	nsr-tandem)
		basic_machine=nsr-tandem
		;;
	op50n-* | op60c-*)
		basic_machine=hppa1.1-oki
		os=-proelf
		;;
	openrisc | openrisc-*)
		basic_machine=or32-unknown
		;;
	os400)
		basic_machine=powerpc-ibm
		os=-os400
		;;
	OSE68000 | ose68000)
		basic_machine=m68000-ericsson
		os=-ose
		;;
	os68k)
		basic_machine=m68k-none
		os=-os68k
		;;
	pa-hitachi)
		basic_machine=hppa1.1-hitachi
		os=-hiuxwe2
		;;
	paragon)
		basic_machine=i860-intel
		os=-osf
		;;
	parisc)
		basic_machine=hppa-unknown
		os=-linux
		;;
	parisc-*)
		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
		os=-linux
		;;
	pbd)
		basic_machine=sparc-tti
		;;
	pbb)
		basic_machine=m68k-tti
		;;
	pc532 | pc532-*)
		basic_machine=ns32k-pc532
		;;
	pc98)
		basic_machine=i386-pc
		;;
	pc98-*)
		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	pentium | p5 | k5 | k6 | nexgen | viac3)
		basic_machine=i586-pc
		;;
	pentiumpro | p6 | 6x86 | athlon | athlon_*)
		basic_machine=i686-pc
		;;
	pentiumii | pentium2 | pentiumiii | pentium3)
		basic_machine=i686-pc
		;;
	pentium4)
		basic_machine=i786-pc
		;;
	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	pentiumpro-* | p6-* | 6x86-* | athlon-*)
		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	pentium4-*)
		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	pn)
		basic_machine=pn-gould
		;;
	power)	basic_machine=power-ibm
		;;
	ppc | ppcbe)	basic_machine=powerpc-unknown
		;;
	ppc-* | ppcbe-*)
		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	ppcle | powerpclittle | ppc-le | powerpc-little)
		basic_machine=powerpcle-unknown
		;;
	ppcle-* | powerpclittle-*)
		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	ppc64)	basic_machine=powerpc64-unknown
		;;
	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
		basic_machine=powerpc64le-unknown
		;;
	ppc64le-* | powerpc64little-*)
		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	ps2)
		basic_machine=i386-ibm
		;;
	pw32)
		basic_machine=i586-unknown
		os=-pw32
		;;
	rdos | rdos64)
		basic_machine=x86_64-pc
		os=-rdos
		;;
	rdos32)
		basic_machine=i386-pc
		os=-rdos
		;;
	rom68k)
		basic_machine=m68k-rom68k
		os=-coff
		;;
	rm[46]00)
		basic_machine=mips-siemens
		;;
	rtpc | rtpc-*)
		basic_machine=romp-ibm
		;;
	s390 | s390-*)
		basic_machine=s390-ibm
		;;
	s390x | s390x-*)
		basic_machine=s390x-ibm
		;;
	sa29200)
		basic_machine=a29k-amd
		os=-udi
		;;
	sb1)
		basic_machine=mipsisa64sb1-unknown
		;;
	sb1el)
		basic_machine=mipsisa64sb1el-unknown
		;;
	sde)
		basic_machine=mipsisa32-sde
		os=-elf
		;;
	sei)
		basic_machine=mips-sei
		os=-seiux
		;;
	sequent)
		basic_machine=i386-sequent
		;;
	sh)
		basic_machine=sh-hitachi
		os=-hms
		;;
	sh5el)
		basic_machine=sh5le-unknown
		;;
	sh64)
		basic_machine=sh64-unknown
		;;
	sparclite-wrs | simso-wrs)
		basic_machine=sparclite-wrs
		os=-vxworks
		;;
	sps7)
		basic_machine=m68k-bull
		os=-sysv2
		;;
	spur)
		basic_machine=spur-unknown
		;;
	st2000)
		basic_machine=m68k-tandem
		;;
	stratus)
		basic_machine=i860-stratus
		os=-sysv4
		;;
	strongarm-* | thumb-*)
		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
		;;
	sun2)
		basic_machine=m68000-sun
		;;
	sun2os3)
		basic_machine=m68000-sun
		os=-sunos3
		;;
	sun2os4)
		basic_machine=m68000-sun
		os=-sunos4
		;;
	sun3os3)
		basic_machine=m68k-sun
		os=-sunos3
		;;
	sun3os4)
		basic_machine=m68k-sun
		os=-sunos4
		;;
	sun4os3)
		basic_machine=sparc-sun
		os=-sunos3
		;;
	sun4os4)
		basic_machine=sparc-sun
		os=-sunos4
		;;
	sun4sol2)
		basic_machine=sparc-sun
		os=-solaris2
		;;
	sun3 | sun3-*)
		basic_machine=m68k-sun
		;;
	sun4)
		basic_machine=sparc-sun
		;;
	sun386 | sun386i | roadrunner)
		basic_machine=i386-sun
		;;
	sv1)
		basic_machine=sv1-cray
		os=-unicos
		;;
	symmetry)
		basic_machine=i386-sequent
		os=-dynix
		;;
	t3e)
		basic_machine=alphaev5-cray
		os=-unicos
		;;
	t90)
		basic_machine=t90-cray
		os=-unicos
		;;
	tile*)
		basic_machine=$basic_machine-unknown
		os=-linux-gnu
		;;
	tx39)
		basic_machine=mipstx39-unknown
		;;
	tx39el)
		basic_machine=mipstx39el-unknown
		;;
	toad1)
		basic_machine=pdp10-xkl
		os=-tops20
		;;
	tower | tower-32)
		basic_machine=m68k-ncr
		;;
	tpf)
		basic_machine=s390x-ibm
		os=-tpf
		;;
	udi29k)
		basic_machine=a29k-amd
		os=-udi
		;;
	ultra3)
		basic_machine=a29k-nyu
		os=-sym1
		;;
	v810 | necv810)
		basic_machine=v810-nec
		os=-none
		;;
	vaxv)
		basic_machine=vax-dec
		os=-sysv
		;;
	vms)
		basic_machine=vax-dec
		os=-vms
		;;
	vpp*|vx|vx-*)
		basic_machine=f301-fujitsu
		;;
	vxworks960)
		basic_machine=i960-wrs
		os=-vxworks
		;;
	vxworks68)
		basic_machine=m68k-wrs
		os=-vxworks
		;;
	vxworks29k)
		basic_machine=a29k-wrs
		os=-vxworks
		;;
	w65*)
		basic_machine=w65-wdc
		os=-none
		;;
	w89k-*)
		basic_machine=hppa1.1-winbond
		os=-proelf
		;;
	xbox)
		basic_machine=i686-pc
		os=-mingw32
		;;
	xps | xps100)
		basic_machine=xps100-honeywell
		;;
	xscale-* | xscalee[bl]-*)
		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
		;;
	ymp)
		basic_machine=ymp-cray
		os=-unicos
		;;
	z8k-*-coff)
		basic_machine=z8k-unknown
		os=-sim
		;;
	z80-*-coff)
		basic_machine=z80-unknown
		os=-sim
		;;
	none)
		basic_machine=none-none
		os=-none
		;;

# Here we handle the default manufacturer of certain CPU types.  It is in
# some cases the only manufacturer, in others, it is the most popular.
	w89k)
		basic_machine=hppa1.1-winbond
		;;
	op50n)
		basic_machine=hppa1.1-oki
		;;
	op60c)
		basic_machine=hppa1.1-oki
		;;
	romp)
		basic_machine=romp-ibm
		;;
	mmix)
		basic_machine=mmix-knuth
		;;
	rs6000)
		basic_machine=rs6000-ibm
		;;
	vax)
		basic_machine=vax-dec
		;;
	pdp10)
		# there are many clones, so DEC is not a safe bet
		basic_machine=pdp10-unknown
		;;
	pdp11)
		basic_machine=pdp11-dec
		;;
	we32k)
		basic_machine=we32k-att
		;;
	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
		basic_machine=sh-unknown
		;;
	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
		basic_machine=sparc-sun
		;;
	cydra)
		basic_machine=cydra-cydrome
		;;
	orion)
		basic_machine=orion-highlevel
		;;
	orion105)
		basic_machine=clipper-highlevel
		;;
	mac | mpw | mac-mpw)
		basic_machine=m68k-apple
		;;
	pmac | pmac-mpw)
		basic_machine=powerpc-apple
		;;
	*-unknown)
		# Make sure to match an already-canonicalized machine name.
		;;
	*)
		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
		exit 1
		;;
esac

# Here we canonicalize certain aliases for manufacturers.
case $basic_machine in
	*-digital*)
		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
		;;
	*-commodore*)
		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
		;;
	*)
		;;
esac

# Decode manufacturer-specific aliases for certain operating systems.

if [ x"$os" != x"" ]
then
case $os in
	# First match some system type aliases
	# that might get confused with valid system types.
	# -solaris* is a basic system type, with this one exception.
	-auroraux)
		os=-auroraux
		;;
	-solaris1 | -solaris1.*)
		os=`echo $os | sed -e 's|solaris1|sunos4|'`
		;;
	-solaris)
		os=-solaris2
		;;
	-svr4*)
		os=-sysv4
		;;
	-unixware*)
		os=-sysv4.2uw
		;;
	-gnu/linux*)
		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
		;;
	# First accept the basic system types.
	# The portable systems comes first.
	# Each alternative MUST END IN A *, to match a version number.
	# -sysv* is not here because it comes later, after sysvr4.
	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
	      | -sym* | -kopensolaris* | -plan9* \
	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
	      | -aos* | -aros* \
	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
	      | -bitrig* | -openbsd* | -solidbsd* \
	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
	      | -chorusos* | -chorusrdb* | -cegcc* \
	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* | -tirtos*)
	# Remember, each alternative MUST END IN *, to match a version number.
		;;
	-qnx*)
		case $basic_machine in
		    x86-* | i*86-*)
			;;
		    *)
			os=-nto$os
			;;
		esac
		;;
	-nto-qnx*)
		;;
	-nto*)
		os=`echo $os | sed -e 's|nto|nto-qnx|'`
		;;
	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
		;;
	-mac*)
		os=`echo $os | sed -e 's|mac|macos|'`
		;;
	-linux-dietlibc)
		os=-linux-dietlibc
		;;
	-linux*)
		os=`echo $os | sed -e 's|linux|linux-gnu|'`
		;;
	-sunos5*)
		os=`echo $os | sed -e 's|sunos5|solaris2|'`
		;;
	-sunos6*)
		os=`echo $os | sed -e 's|sunos6|solaris3|'`
		;;
	-opened*)
		os=-openedition
		;;
	-os400*)
		os=-os400
		;;
	-wince*)
		os=-wince
		;;
	-osfrose*)
		os=-osfrose
		;;
	-osf*)
		os=-osf
		;;
	-utek*)
		os=-bsd
		;;
	-dynix*)
		os=-bsd
		;;
	-acis*)
		os=-aos
		;;
	-atheos*)
		os=-atheos
		;;
	-syllable*)
		os=-syllable
		;;
	-386bsd)
		os=-bsd
		;;
	-ctix* | -uts*)
		os=-sysv
		;;
	-nova*)
		os=-rtmk-nova
		;;
	-ns2 )
		os=-nextstep2
		;;
	-nsk*)
		os=-nsk
		;;
	# Preserve the version number of sinix5.
	-sinix5.*)
		os=`echo $os | sed -e 's|sinix|sysv|'`
		;;
	-sinix*)
		os=-sysv4
		;;
	-tpf*)
		os=-tpf
		;;
	-triton*)
		os=-sysv3
		;;
	-oss*)
		os=-sysv3
		;;
	-svr4)
		os=-sysv4
		;;
	-svr3)
		os=-sysv3
		;;
	-sysvr4)
		os=-sysv4
		;;
	# This must come after -sysvr4.
	-sysv*)
		;;
	-ose*)
		os=-ose
		;;
	-es1800*)
		os=-ose
		;;
	-xenix)
		os=-xenix
		;;
	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
		os=-mint
		;;
	-aros*)
		os=-aros
		;;
	-zvmoe)
		os=-zvmoe
		;;
	-dicos*)
		os=-dicos
		;;
	-nacl*)
		;;
	-none)
		;;
	*)
		# Get rid of the `-' at the beginning of $os.
		os=`echo $os | sed 's/[^-]*-//'`
		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
		exit 1
		;;
esac
else

# Here we handle the default operating systems that come with various machines.
# The value should be what the vendor currently ships out the door with their
# machine or put another way, the most popular os provided with the machine.

# Note that if you're going to try to match "-MANUFACTURER" here (say,
# "-sun"), then you have to tell the case statement up towards the top
# that MANUFACTURER isn't an operating system.  Otherwise, code above
# will signal an error saying that MANUFACTURER isn't an operating
# system, and we'll never get to this point.

case $basic_machine in
	score-*)
		os=-elf
		;;
	spu-*)
		os=-elf
		;;
	*-acorn)
		os=-riscix1.2
		;;
	arm*-rebel)
		os=-linux
		;;
	arm*-semi)
		os=-aout
		;;
	c4x-* | tic4x-*)
		os=-coff
		;;
	c8051-*)
		os=-elf
		;;
	hexagon-*)
		os=-elf
		;;
	tic54x-*)
		os=-coff
		;;
	tic55x-*)
		os=-coff
		;;
	tic6x-*)
		os=-coff
		;;
	# This must come before the *-dec entry.
	pdp10-*)
		os=-tops20
		;;
	pdp11-*)
		os=-none
		;;
	*-dec | vax-*)
		os=-ultrix4.2
		;;
	m68*-apollo)
		os=-domain
		;;
	i386-sun)
		os=-sunos4.0.2
		;;
	m68000-sun)
		os=-sunos3
		;;
	m68*-cisco)
		os=-aout
		;;
	mep-*)
		os=-elf
		;;
	mips*-cisco)
		os=-elf
		;;
	mips*-*)
		os=-elf
		;;
	or32-*)
		os=-coff
		;;
	*-tti)	# must be before sparc entry or we get the wrong os.
		os=-sysv3
		;;
	sparc-* | *-sun)
		os=-sunos4.1.1
		;;
	*-be)
		os=-beos
		;;
	*-haiku)
		os=-haiku
		;;
	*-ibm)
		os=-aix
		;;
	*-knuth)
		os=-mmixware
		;;
	*-wec)
		os=-proelf
		;;
	*-winbond)
		os=-proelf
		;;
	*-oki)
		os=-proelf
		;;
	*-hp)
		os=-hpux
		;;
	*-hitachi)
		os=-hiux
		;;
	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
		os=-sysv
		;;
	*-cbm)
		os=-amigaos
		;;
	*-dg)
		os=-dgux
		;;
	*-dolphin)
		os=-sysv3
		;;
	m68k-ccur)
		os=-rtu
		;;
	m88k-omron*)
		os=-luna
		;;
	*-next )
		os=-nextstep
		;;
	*-sequent)
		os=-ptx
		;;
	*-crds)
		os=-unos
		;;
	*-ns)
		os=-genix
		;;
	i370-*)
		os=-mvs
		;;
	*-next)
		os=-nextstep3
		;;
	*-gould)
		os=-sysv
		;;
	*-highlevel)
		os=-bsd
		;;
	*-encore)
		os=-bsd
		;;
	*-sgi)
		os=-irix
		;;
	*-siemens)
		os=-sysv4
		;;
	*-masscomp)
		os=-rtu
		;;
	f30[01]-fujitsu | f700-fujitsu)
		os=-uxpv
		;;
	*-rom68k)
		os=-coff
		;;
	*-*bug)
		os=-coff
		;;
	*-apple)
		os=-macos
		;;
	*-atari*)
		os=-mint
		;;
	*)
		os=-none
		;;
esac
fi

# Here we handle the case where we know the os, and the CPU type, but not the
# manufacturer.  We pick the logical manufacturer.
vendor=unknown
case $basic_machine in
	*-unknown)
		case $os in
			-riscix*)
				vendor=acorn
				;;
			-sunos*)
				vendor=sun
				;;
			-cnk*|-aix*)
				vendor=ibm
				;;
			-beos*)
				vendor=be
				;;
			-hpux*)
				vendor=hp
				;;
			-mpeix*)
				vendor=hp
				;;
			-hiux*)
				vendor=hitachi
				;;
			-unos*)
				vendor=crds
				;;
			-dgux*)
				vendor=dg
				;;
			-luna*)
				vendor=omron
				;;
			-genix*)
				vendor=ns
				;;
			-mvs* | -opened*)
				vendor=ibm
				;;
			-os400*)
				vendor=ibm
				;;
			-ptx*)
				vendor=sequent
				;;
			-tpf*)
				vendor=ibm
				;;
			-vxsim* | -vxworks* | -windiss*)
				vendor=wrs
				;;
			-aux*)
				vendor=apple
				;;
			-hms*)
				vendor=hitachi
				;;
			-mpw* | -macos*)
				vendor=apple
				;;
			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
				vendor=atari
				;;
			-vos*)
				vendor=stratus
				;;
		esac
		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
		;;
esac

echo $basic_machine$os
exit

# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "timestamp='"
# time-stamp-format: "%:y-%02m-%02d"
# time-stamp-end: "'"
# End:
gperftools-2.4/install-sh0000755000000000000000000003325512454304622012450 00000000000000#!/bin/sh
# install - install a program, script, or datafile

scriptversion=2011-11-20.07; # UTC

# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# 'make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.

nl='
'
IFS=" ""	$nl"

# set DOITPROG to echo to test this script

# Don't use :- since 4.3BSD and earlier shells don't like it.
doit=${DOITPROG-}
if test -z "$doit"; then
  doit_exec=exec
else
  doit_exec=$doit
fi

# Put in absolute file names if you don't have them in your path;
# or use environment vars.

chgrpprog=${CHGRPPROG-chgrp}
chmodprog=${CHMODPROG-chmod}
chownprog=${CHOWNPROG-chown}
cmpprog=${CMPPROG-cmp}
cpprog=${CPPROG-cp}
mkdirprog=${MKDIRPROG-mkdir}
mvprog=${MVPROG-mv}
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}

posix_glob='?'
initialize_posix_glob='
  test "$posix_glob" != "?" || {
    if (set -f) 2>/dev/null; then
      posix_glob=
    else
      posix_glob=:
    fi
  }
'

posix_mkdir=

# Desired mode of installed file.
mode=0755

chgrpcmd=
chmodcmd=$chmodprog
chowncmd=
mvcmd=$mvprog
rmcmd="$rmprog -f"
stripcmd=

src=
dst=
dir_arg=
dst_arg=

copy_on_change=false
no_target_directory=

usage="\
Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
   or: $0 [OPTION]... SRCFILES... DIRECTORY
   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
   or: $0 [OPTION]... -d DIRECTORIES...

In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.

Options:
     --help     display this help and exit.
     --version  display version info and exit.

  -c            (ignored)
  -C            install only if different (preserve the last data modification time)
  -d            create directories instead of installing files.
  -g GROUP      $chgrpprog installed files to GROUP.
  -m MODE       $chmodprog installed files to MODE.
  -o USER       $chownprog installed files to USER.
  -s            $stripprog installed files.
  -t DIRECTORY  install into DIRECTORY.
  -T            report an error if DSTFILE is a directory.

Environment variables override the default commands:
  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
  RMPROG STRIPPROG
"

while test $# -ne 0; do
  case $1 in
    -c) ;;

    -C) copy_on_change=true;;

    -d) dir_arg=true;;

    -g) chgrpcmd="$chgrpprog $2"
	shift;;

    --help) echo "$usage"; exit $?;;

    -m) mode=$2
	case $mode in
	  *' '* | *'	'* | *'
'*	  | *'*'* | *'?'* | *'['*)
	    echo "$0: invalid mode: $mode" >&2
	    exit 1;;
	esac
	shift;;

    -o) chowncmd="$chownprog $2"
	shift;;

    -s) stripcmd=$stripprog;;

    -t) dst_arg=$2
	# Protect names problematic for 'test' and other utilities.
	case $dst_arg in
	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
	esac
	shift;;

    -T) no_target_directory=true;;

    --version) echo "$0 $scriptversion"; exit $?;;

    --)	shift
	break;;

    -*)	echo "$0: invalid option: $1" >&2
	exit 1;;

    *)  break;;
  esac
  shift
done

if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
  # When -d is used, all remaining arguments are directories to create.
  # When -t is used, the destination is already specified.
  # Otherwise, the last argument is the destination.  Remove it from $@.
  for arg
  do
    if test -n "$dst_arg"; then
      # $@ is not empty: it contains at least $arg.
      set fnord "$@" "$dst_arg"
      shift # fnord
    fi
    shift # arg
    dst_arg=$arg
    # Protect names problematic for 'test' and other utilities.
    case $dst_arg in
      -* | [=\(\)!]) dst_arg=./$dst_arg;;
    esac
  done
fi

if test $# -eq 0; then
  if test -z "$dir_arg"; then
    echo "$0: no input file specified." >&2
    exit 1
  fi
  # It's OK to call 'install-sh -d' without argument.
  # This can happen when creating conditional directories.
  exit 0
fi

if test -z "$dir_arg"; then
  do_exit='(exit $ret); exit $ret'
  trap "ret=129; $do_exit" 1
  trap "ret=130; $do_exit" 2
  trap "ret=141; $do_exit" 13
  trap "ret=143; $do_exit" 15

  # Set umask so as not to create temps with too-generous modes.
  # However, 'strip' requires both read and write access to temps.
  case $mode in
    # Optimize common cases.
    *644) cp_umask=133;;
    *755) cp_umask=22;;

    *[0-7])
      if test -z "$stripcmd"; then
	u_plus_rw=
      else
	u_plus_rw='% 200'
      fi
      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
    *)
      if test -z "$stripcmd"; then
	u_plus_rw=
      else
	u_plus_rw=,u+rw
      fi
      cp_umask=$mode$u_plus_rw;;
  esac
fi

for src
do
  # Protect names problematic for 'test' and other utilities.
  case $src in
    -* | [=\(\)!]) src=./$src;;
  esac

  if test -n "$dir_arg"; then
    dst=$src
    dstdir=$dst
    test -d "$dstdir"
    dstdir_status=$?
  else

    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
    # might cause directories to be created, which would be especially bad
    # if $src (and thus $dsttmp) contains '*'.
    if test ! -f "$src" && test ! -d "$src"; then
      echo "$0: $src does not exist." >&2
      exit 1
    fi

    if test -z "$dst_arg"; then
      echo "$0: no destination specified." >&2
      exit 1
    fi
    dst=$dst_arg

    # If destination is a directory, append the input filename; won't work
    # if double slashes aren't ignored.
    if test -d "$dst"; then
      if test -n "$no_target_directory"; then
	echo "$0: $dst_arg: Is a directory" >&2
	exit 1
      fi
      dstdir=$dst
      dst=$dstdir/`basename "$src"`
      dstdir_status=0
    else
      # Prefer dirname, but fall back on a substitute if dirname fails.
      dstdir=`
	(dirname "$dst") 2>/dev/null ||
	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	     X"$dst" : 'X\(//\)[^/]' \| \
	     X"$dst" : 'X\(//\)$' \| \
	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
	echo X"$dst" |
	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
		   s//\1/
		   q
		 }
		 /^X\(\/\/\)[^/].*/{
		   s//\1/
		   q
		 }
		 /^X\(\/\/\)$/{
		   s//\1/
		   q
		 }
		 /^X\(\/\).*/{
		   s//\1/
		   q
		 }
		 s/.*/./; q'
      `

      test -d "$dstdir"
      dstdir_status=$?
    fi
  fi

  obsolete_mkdir_used=false

  if test $dstdir_status != 0; then
    case $posix_mkdir in
      '')
	# Create intermediate dirs using mode 755 as modified by the umask.
	# This is like FreeBSD 'install' as of 1997-10-28.
	umask=`umask`
	case $stripcmd.$umask in
	  # Optimize common cases.
	  *[2367][2367]) mkdir_umask=$umask;;
	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;

	  *[0-7])
	    mkdir_umask=`expr $umask + 22 \
	      - $umask % 100 % 40 + $umask % 20 \
	      - $umask % 10 % 4 + $umask % 2
	    `;;
	  *) mkdir_umask=$umask,go-w;;
	esac

	# With -d, create the new directory with the user-specified mode.
	# Otherwise, rely on $mkdir_umask.
	if test -n "$dir_arg"; then
	  mkdir_mode=-m$mode
	else
	  mkdir_mode=
	fi

	posix_mkdir=false
	case $umask in
	  *[123567][0-7][0-7])
	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
	    ;;
	  *)
	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0

	    if (umask $mkdir_umask &&
		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
	    then
	      if test -z "$dir_arg" || {
		   # Check for POSIX incompatibilities with -m.
		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
		   # other-writable bit of parent directory when it shouldn't.
		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
		   case $ls_ld_tmpdir in
		     d????-?r-*) different_mode=700;;
		     d????-?--*) different_mode=755;;
		     *) false;;
		   esac &&
		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
		   }
		 }
	      then posix_mkdir=:
	      fi
	      rmdir "$tmpdir/d" "$tmpdir"
	    else
	      # Remove any dirs left behind by ancient mkdir implementations.
	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
	    fi
	    trap '' 0;;
	esac;;
    esac

    if
      $posix_mkdir && (
	umask $mkdir_umask &&
	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
      )
    then :
    else

      # The umask is ridiculous, or mkdir does not conform to POSIX,
      # or it failed possibly due to a race condition.  Create the
      # directory the slow way, step by step, checking for races as we go.

      case $dstdir in
	/*) prefix='/';;
	[-=\(\)!]*) prefix='./';;
	*)  prefix='';;
      esac

      eval "$initialize_posix_glob"

      oIFS=$IFS
      IFS=/
      $posix_glob set -f
      set fnord $dstdir
      shift
      $posix_glob set +f
      IFS=$oIFS

      prefixes=

      for d
      do
	test X"$d" = X && continue

	prefix=$prefix$d
	if test -d "$prefix"; then
	  prefixes=
	else
	  if $posix_mkdir; then
	    (umask=$mkdir_umask &&
	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
	    # Don't fail if two instances are running concurrently.
	    test -d "$prefix" || exit 1
	  else
	    case $prefix in
	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
	      *) qprefix=$prefix;;
	    esac
	    prefixes="$prefixes '$qprefix'"
	  fi
	fi
	prefix=$prefix/
      done

      if test -n "$prefixes"; then
	# Don't fail if two instances are running concurrently.
	(umask $mkdir_umask &&
	 eval "\$doit_exec \$mkdirprog $prefixes") ||
	  test -d "$dstdir" || exit 1
	obsolete_mkdir_used=true
      fi
    fi
  fi

  if test -n "$dir_arg"; then
    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
  else

    # Make a couple of temp file names in the proper directory.
    dsttmp=$dstdir/_inst.$$_
    rmtmp=$dstdir/_rm.$$_

    # Trap to clean up those temp files at exit.
    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0

    # Copy the file name to the temp name.
    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&

    # and set any options; do chmod last to preserve setuid bits.
    #
    # If any of these fail, we abort the whole thing.  If we want to
    # ignore errors from any of these, just make sure not to ignore
    # errors from the above "$doit $cpprog $src $dsttmp" command.
    #
    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&

    # If -C, don't bother to copy if it wouldn't change the file.
    if $copy_on_change &&
       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&

       eval "$initialize_posix_glob" &&
       $posix_glob set -f &&
       set X $old && old=:$2:$4:$5:$6 &&
       set X $new && new=:$2:$4:$5:$6 &&
       $posix_glob set +f &&

       test "$old" = "$new" &&
       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
    then
      rm -f "$dsttmp"
    else
      # Rename the file to the real destination.
      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||

      # The rename failed, perhaps because mv can't rename something else
      # to itself, or perhaps because mv is so ancient that it does not
      # support -f.
      {
	# Now remove or move aside any old file at destination location.
	# We try this two ways since rm can't unlink itself on some
	# systems and the destination file might be busy for other
	# reasons.  In this case, the final cleanup might fail but the new
	# file should still install successfully.
	{
	  test ! -f "$dst" ||
	  $doit $rmcmd -f "$dst" 2>/dev/null ||
	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
	  } ||
	  { echo "$0: cannot unlink or rename $dst" >&2
	    (exit 1); exit 1
	  }
	} &&

	# Now rename the file to the real destination.
	$doit $mvcmd "$dsttmp" "$dst"
      }
    fi || exit 1

    trap '' 0
  fi
done

# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:
gperftools-2.4/missing0000755000000000000000000001533012454304622012035 00000000000000#! /bin/sh
# Common wrapper for a few potentially missing GNU programs.

scriptversion=2013-10-28.13; # UTC

# Copyright (C) 1996-2013 Free Software Foundation, Inc.
# Originally written by Fran,cois Pinard , 1996.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see .

# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.

if test $# -eq 0; then
  echo 1>&2 "Try '$0 --help' for more information"
  exit 1
fi

case $1 in

  --is-lightweight)
    # Used by our autoconf macros to check whether the available missing
    # script is modern enough.
    exit 0
    ;;

  --run)
    # Back-compat with the calling convention used by older automake.
    shift
    ;;

  -h|--h|--he|--hel|--help)
    echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...

Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
to PROGRAM being missing or too old.

Options:
  -h, --help      display this help and exit
  -v, --version   output version information and exit

Supported PROGRAM values:
  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
  bison     yacc      flex         lex       help2man

Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
'g' are ignored when checking the name.

Send bug reports to ."
    exit $?
    ;;

  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
    echo "missing $scriptversion (GNU Automake)"
    exit $?
    ;;

  -*)
    echo 1>&2 "$0: unknown '$1' option"
    echo 1>&2 "Try '$0 --help' for more information"
    exit 1
    ;;

esac

# Run the given program, remember its exit status.
"$@"; st=$?

# If it succeeded, we are done.
test $st -eq 0 && exit 0

# Also exit now if we it failed (or wasn't found), and '--version' was
# passed; such an option is passed most likely to detect whether the
# program is present and works.
case $2 in --version|--help) exit $st;; esac

# Exit code 63 means version mismatch.  This often happens when the user
# tries to use an ancient version of a tool on a file that requires a
# minimum version.
if test $st -eq 63; then
  msg="probably too old"
elif test $st -eq 127; then
  # Program was missing.
  msg="missing on your system"
else
  # Program was found and executed, but failed.  Give up.
  exit $st
fi

perl_URL=http://www.perl.org/
flex_URL=http://flex.sourceforge.net/
gnu_software_URL=http://www.gnu.org/software

program_details ()
{
  case $1 in
    aclocal|automake)
      echo "The '$1' program is part of the GNU Automake package:"
      echo "<$gnu_software_URL/automake>"
      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
      echo "<$gnu_software_URL/autoconf>"
      echo "<$gnu_software_URL/m4/>"
      echo "<$perl_URL>"
      ;;
    autoconf|autom4te|autoheader)
      echo "The '$1' program is part of the GNU Autoconf package:"
      echo "<$gnu_software_URL/autoconf/>"
      echo "It also requires GNU m4 and Perl in order to run:"
      echo "<$gnu_software_URL/m4/>"
      echo "<$perl_URL>"
      ;;
  esac
}

give_advice ()
{
  # Normalize program name to check for.
  normalized_program=`echo "$1" | sed '
    s/^gnu-//; t
    s/^gnu//; t
    s/^g//; t'`

  printf '%s\n' "'$1' is $msg."

  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
  case $normalized_program in
    autoconf*)
      echo "You should only need it if you modified 'configure.ac',"
      echo "or m4 files included by it."
      program_details 'autoconf'
      ;;
    autoheader*)
      echo "You should only need it if you modified 'acconfig.h' or"
      echo "$configure_deps."
      program_details 'autoheader'
      ;;
    automake*)
      echo "You should only need it if you modified 'Makefile.am' or"
      echo "$configure_deps."
      program_details 'automake'
      ;;
    aclocal*)
      echo "You should only need it if you modified 'acinclude.m4' or"
      echo "$configure_deps."
      program_details 'aclocal'
      ;;
   autom4te*)
      echo "You might have modified some maintainer files that require"
      echo "the 'autom4te' program to be rebuilt."
      program_details 'autom4te'
      ;;
    bison*|yacc*)
      echo "You should only need it if you modified a '.y' file."
      echo "You may want to install the GNU Bison package:"
      echo "<$gnu_software_URL/bison/>"
      ;;
    lex*|flex*)
      echo "You should only need it if you modified a '.l' file."
      echo "You may want to install the Fast Lexical Analyzer package:"
      echo "<$flex_URL>"
      ;;
    help2man*)
      echo "You should only need it if you modified a dependency" \
           "of a man page."
      echo "You may want to install the GNU Help2man package:"
      echo "<$gnu_software_URL/help2man/>"
    ;;
    makeinfo*)
      echo "You should only need it if you modified a '.texi' file, or"
      echo "any other file indirectly affecting the aspect of the manual."
      echo "You might want to install the Texinfo package:"
      echo "<$gnu_software_URL/texinfo/>"
      echo "The spurious makeinfo call might also be the consequence of"
      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
      echo "want to install GNU make:"
      echo "<$gnu_software_URL/make/>"
      ;;
    *)
      echo "You might have modified some files without having the proper"
      echo "tools for further handling them.  Check the 'README' file, it"
      echo "often tells you about the needed prerequisites for installing"
      echo "this package.  You may also peek at any GNU archive site, in"
      echo "case some other package contains this missing '$1' program."
      ;;
  esac
}

give_advice "$1" | sed -e '1s/^/WARNING: /' \
                       -e '2,$s/^/         /' >&2

# Propagate the correct exit status (expected to be 127 for a program
# not found, 63 for a program that failed due to version mismatch).
exit $st

# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:
gperftools-2.4/ltmain.sh0000644000000000000000000105203012454304616012260 00000000000000
# libtool (GNU libtool) 2.4.2
# Written by Gordon Matzigkeit , 1996

# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions.  There is NO
# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

# GNU Libtool is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# As a special exception to the GNU General Public License,
# if you distribute this file as part of a program or library that
# is built using GNU Libtool, you may include this file under the
# same distribution terms that you use for the rest of that program.
#
# GNU Libtool is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Libtool; see the file COPYING.  If not, a copy
# can be downloaded from http://www.gnu.org/licenses/gpl.html,
# or obtained by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

# Usage: $progname [OPTION]... [MODE-ARG]...
#
# Provide generalized library-building support services.
#
#       --config             show all configuration variables
#       --debug              enable verbose shell tracing
#   -n, --dry-run            display commands without modifying any files
#       --features           display basic configuration information and exit
#       --mode=MODE          use operation mode MODE
#       --preserve-dup-deps  don't remove duplicate dependency libraries
#       --quiet, --silent    don't print informational messages
#       --no-quiet, --no-silent
#                            print informational messages (default)
#       --no-warn            don't display warning messages
#       --tag=TAG            use configuration variables from tag TAG
#   -v, --verbose            print more informational messages than default
#       --no-verbose         don't print the extra informational messages
#       --version            print version information
#   -h, --help, --help-all   print short, long, or detailed help message
#
# MODE must be one of the following:
#
#         clean              remove files from the build directory
#         compile            compile a source file into a libtool object
#         execute            automatically set library path, then run a program
#         finish             complete the installation of libtool libraries
#         install            install libraries or executables
#         link               create a library or an executable
#         uninstall          remove libraries from an installed directory
#
# MODE-ARGS vary depending on the MODE.  When passed as first option,
# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that.
# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
#
# When reporting a bug, please describe a test case to reproduce it and
# include the following information:
#
#         host-triplet:	$host
#         shell:		$SHELL
#         compiler:		$LTCC
#         compiler flags:		$LTCFLAGS
#         linker:		$LD (gnu? $with_gnu_ld)
#         $progname:	(GNU libtool) 2.4.2 Debian-2.4.2-1.11
#         automake:	$automake_version
#         autoconf:	$autoconf_version
#
# Report bugs to .
# GNU libtool home page: .
# General help using GNU software: .

PROGRAM=libtool
PACKAGE=libtool
VERSION="2.4.2 Debian-2.4.2-1.11"
TIMESTAMP=""
package_revision=1.3337

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
fi
BIN_SH=xpg4; export BIN_SH # for Tru64
DUALCASE=1; export DUALCASE # for MKS sh

# A function that is used when there is no print builtin or printf.
func_fallback_echo ()
{
  eval 'cat <<_LTECHO_EOF
$1
_LTECHO_EOF'
}

# NLS nuisances: We save the old values to restore during execute mode.
lt_user_locale=
lt_safe_locale=
for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
do
  eval "if test \"\${$lt_var+set}\" = set; then
          save_$lt_var=\$$lt_var
          $lt_var=C
	  export $lt_var
	  lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
	  lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
	fi"
done
LC_ALL=C
LANGUAGE=C
export LANGUAGE LC_ALL

$lt_unset CDPATH


# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
# is ksh but when the shell is invoked as "sh" and the current value of
# the _XPG environment variable is not equal to 1 (one), the special
# positional parameter $0, within a function call, is the name of the
# function.
progpath="$0"



: ${CP="cp -f"}
test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
: ${MAKE="make"}
: ${MKDIR="mkdir"}
: ${MV="mv -f"}
: ${RM="rm -f"}
: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
: ${Xsed="$SED -e 1s/^X//"}

# Global variables:
EXIT_SUCCESS=0
EXIT_FAILURE=1
EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.

exit_status=$EXIT_SUCCESS

# Make sure IFS has a sensible default
lt_nl='
'
IFS=" 	$lt_nl"

dirname="s,/[^/]*$,,"
basename="s,^.*/,,"

# func_dirname file append nondir_replacement
# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
# otherwise set result to NONDIR_REPLACEMENT.
func_dirname ()
{
    func_dirname_result=`$ECHO "${1}" | $SED "$dirname"`
    if test "X$func_dirname_result" = "X${1}"; then
      func_dirname_result="${3}"
    else
      func_dirname_result="$func_dirname_result${2}"
    fi
} # func_dirname may be replaced by extended shell implementation


# func_basename file
func_basename ()
{
    func_basename_result=`$ECHO "${1}" | $SED "$basename"`
} # func_basename may be replaced by extended shell implementation


# func_dirname_and_basename file append nondir_replacement
# perform func_basename and func_dirname in a single function
# call:
#   dirname:  Compute the dirname of FILE.  If nonempty,
#             add APPEND to the result, otherwise set result
#             to NONDIR_REPLACEMENT.
#             value returned in "$func_dirname_result"
#   basename: Compute filename of FILE.
#             value retuned in "$func_basename_result"
# Implementation must be kept synchronized with func_dirname
# and func_basename. For efficiency, we do not delegate to
# those functions but instead duplicate the functionality here.
func_dirname_and_basename ()
{
    # Extract subdirectory from the argument.
    func_dirname_result=`$ECHO "${1}" | $SED -e "$dirname"`
    if test "X$func_dirname_result" = "X${1}"; then
      func_dirname_result="${3}"
    else
      func_dirname_result="$func_dirname_result${2}"
    fi
    func_basename_result=`$ECHO "${1}" | $SED -e "$basename"`
} # func_dirname_and_basename may be replaced by extended shell implementation


# func_stripname prefix suffix name
# strip PREFIX and SUFFIX off of NAME.
# PREFIX and SUFFIX must not contain globbing or regex special
# characters, hashes, percent signs, but SUFFIX may contain a leading
# dot (in which case that matches only a dot).
# func_strip_suffix prefix name
func_stripname ()
{
    case ${2} in
      .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
      *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
    esac
} # func_stripname may be replaced by extended shell implementation


# These SED scripts presuppose an absolute path with a trailing slash.
pathcar='s,^/\([^/]*\).*$,\1,'
pathcdr='s,^/[^/]*,,'
removedotparts=':dotsl
		s@/\./@/@g
		t dotsl
		s,/\.$,/,'
collapseslashes='s@/\{1,\}@/@g'
finalslash='s,/*$,/,'

# func_normal_abspath PATH
# Remove doubled-up and trailing slashes, "." path components,
# and cancel out any ".." path components in PATH after making
# it an absolute path.
#             value returned in "$func_normal_abspath_result"
func_normal_abspath ()
{
  # Start from root dir and reassemble the path.
  func_normal_abspath_result=
  func_normal_abspath_tpath=$1
  func_normal_abspath_altnamespace=
  case $func_normal_abspath_tpath in
    "")
      # Empty path, that just means $cwd.
      func_stripname '' '/' "`pwd`"
      func_normal_abspath_result=$func_stripname_result
      return
    ;;
    # The next three entries are used to spot a run of precisely
    # two leading slashes without using negated character classes;
    # we take advantage of case's first-match behaviour.
    ///*)
      # Unusual form of absolute path, do nothing.
    ;;
    //*)
      # Not necessarily an ordinary path; POSIX reserves leading '//'
      # and for example Cygwin uses it to access remote file shares
      # over CIFS/SMB, so we conserve a leading double slash if found.
      func_normal_abspath_altnamespace=/
    ;;
    /*)
      # Absolute path, do nothing.
    ;;
    *)
      # Relative path, prepend $cwd.
      func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
    ;;
  esac
  # Cancel out all the simple stuff to save iterations.  We also want
  # the path to end with a slash for ease of parsing, so make sure
  # there is one (and only one) here.
  func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
        -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"`
  while :; do
    # Processed it all yet?
    if test "$func_normal_abspath_tpath" = / ; then
      # If we ascended to the root using ".." the result may be empty now.
      if test -z "$func_normal_abspath_result" ; then
        func_normal_abspath_result=/
      fi
      break
    fi
    func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
        -e "$pathcar"`
    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
        -e "$pathcdr"`
    # Figure out what to do with it
    case $func_normal_abspath_tcomponent in
      "")
        # Trailing empty path component, ignore it.
      ;;
      ..)
        # Parent dir; strip last assembled component from result.
        func_dirname "$func_normal_abspath_result"
        func_normal_abspath_result=$func_dirname_result
      ;;
      *)
        # Actual path component, append it.
        func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent
      ;;
    esac
  done
  # Restore leading double-slash if one was found on entry.
  func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
}

# func_relative_path SRCDIR DSTDIR
# generates a relative path from SRCDIR to DSTDIR, with a trailing
# slash if non-empty, suitable for immediately appending a filename
# without needing to append a separator.
#             value returned in "$func_relative_path_result"
func_relative_path ()
{
  func_relative_path_result=
  func_normal_abspath "$1"
  func_relative_path_tlibdir=$func_normal_abspath_result
  func_normal_abspath "$2"
  func_relative_path_tbindir=$func_normal_abspath_result

  # Ascend the tree starting from libdir
  while :; do
    # check if we have found a prefix of bindir
    case $func_relative_path_tbindir in
      $func_relative_path_tlibdir)
        # found an exact match
        func_relative_path_tcancelled=
        break
        ;;
      $func_relative_path_tlibdir*)
        # found a matching prefix
        func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
        func_relative_path_tcancelled=$func_stripname_result
        if test -z "$func_relative_path_result"; then
          func_relative_path_result=.
        fi
        break
        ;;
      *)
        func_dirname $func_relative_path_tlibdir
        func_relative_path_tlibdir=${func_dirname_result}
        if test "x$func_relative_path_tlibdir" = x ; then
          # Have to descend all the way to the root!
          func_relative_path_result=../$func_relative_path_result
          func_relative_path_tcancelled=$func_relative_path_tbindir
          break
        fi
        func_relative_path_result=../$func_relative_path_result
        ;;
    esac
  done

  # Now calculate path; take care to avoid doubling-up slashes.
  func_stripname '' '/' "$func_relative_path_result"
  func_relative_path_result=$func_stripname_result
  func_stripname '/' '/' "$func_relative_path_tcancelled"
  if test "x$func_stripname_result" != x ; then
    func_relative_path_result=${func_relative_path_result}/${func_stripname_result}
  fi

  # Normalisation. If bindir is libdir, return empty string,
  # else relative path ending with a slash; either way, target
  # file name can be directly appended.
  if test ! -z "$func_relative_path_result"; then
    func_stripname './' '' "$func_relative_path_result/"
    func_relative_path_result=$func_stripname_result
  fi
}

# The name of this program:
func_dirname_and_basename "$progpath"
progname=$func_basename_result

# Make sure we have an absolute path for reexecution:
case $progpath in
  [\\/]*|[A-Za-z]:\\*) ;;
  *[\\/]*)
     progdir=$func_dirname_result
     progdir=`cd "$progdir" && pwd`
     progpath="$progdir/$progname"
     ;;
  *)
     save_IFS="$IFS"
     IFS=${PATH_SEPARATOR-:}
     for progdir in $PATH; do
       IFS="$save_IFS"
       test -x "$progdir/$progname" && break
     done
     IFS="$save_IFS"
     test -n "$progdir" || progdir=`pwd`
     progpath="$progdir/$progname"
     ;;
esac

# Sed substitution that helps us do robust quoting.  It backslashifies
# metacharacters that are still active within double-quoted strings.
Xsed="${SED}"' -e 1s/^X//'
sed_quote_subst='s/\([`"$\\]\)/\\\1/g'

# Same as above, but do not quote variable references.
double_quote_subst='s/\(["`\\]\)/\\\1/g'

# Sed substitution that turns a string into a regex matching for the
# string literally.
sed_make_literal_regex='s,[].[^$\\*\/],\\&,g'

# Sed substitution that converts a w32 file name or path
# which contains forward slashes, into one that contains
# (escaped) backslashes.  A very naive implementation.
lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'

# Re-`\' parameter expansions in output of double_quote_subst that were
# `\'-ed in input to the same.  If an odd number of `\' preceded a '$'
# in input to double_quote_subst, that '$' was protected from expansion.
# Since each input `\' is now two `\'s, look for any number of runs of
# four `\'s followed by two `\'s and then a '$'.  `\' that '$'.
bs='\\'
bs2='\\\\'
bs4='\\\\\\\\'
dollar='\$'
sed_double_backslash="\
  s/$bs4/&\\
/g
  s/^$bs2$dollar/$bs&/
  s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
  s/\n//g"

# Standard options:
opt_dry_run=false
opt_help=false
opt_quiet=false
opt_verbose=false
opt_warning=:

# func_echo arg...
# Echo program name prefixed message, along with the current mode
# name if it has been set yet.
func_echo ()
{
    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
}

# func_verbose arg...
# Echo program name prefixed message in verbose mode only.
func_verbose ()
{
    $opt_verbose && func_echo ${1+"$@"}

    # A bug in bash halts the script if the last line of a function
    # fails when set -e is in force, so we need another command to
    # work around that:
    :
}

# func_echo_all arg...
# Invoke $ECHO with all args, space-separated.
func_echo_all ()
{
    $ECHO "$*"
}

# func_error arg...
# Echo program name prefixed message to standard error.
func_error ()
{
    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
}

# func_warning arg...
# Echo program name prefixed warning message to standard error.
func_warning ()
{
    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2

    # bash bug again:
    :
}

# func_fatal_error arg...
# Echo program name prefixed message to standard error, and exit.
func_fatal_error ()
{
    func_error ${1+"$@"}
    exit $EXIT_FAILURE
}

# func_fatal_help arg...
# Echo program name prefixed message to standard error, followed by
# a help hint, and exit.
func_fatal_help ()
{
    func_error ${1+"$@"}
    func_fatal_error "$help"
}
help="Try \`$progname --help' for more information."  ## default


# func_grep expression filename
# Check whether EXPRESSION matches any line of FILENAME, without output.
func_grep ()
{
    $GREP "$1" "$2" >/dev/null 2>&1
}


# func_mkdir_p directory-path
# Make sure the entire path to DIRECTORY-PATH is available.
func_mkdir_p ()
{
    my_directory_path="$1"
    my_dir_list=

    if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then

      # Protect directory names starting with `-'
      case $my_directory_path in
        -*) my_directory_path="./$my_directory_path" ;;
      esac

      # While some portion of DIR does not yet exist...
      while test ! -d "$my_directory_path"; do
        # ...make a list in topmost first order.  Use a colon delimited
	# list incase some portion of path contains whitespace.
        my_dir_list="$my_directory_path:$my_dir_list"

        # If the last portion added has no slash in it, the list is done
        case $my_directory_path in */*) ;; *) break ;; esac

        # ...otherwise throw away the child directory and loop
        my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"`
      done
      my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'`

      save_mkdir_p_IFS="$IFS"; IFS=':'
      for my_dir in $my_dir_list; do
	IFS="$save_mkdir_p_IFS"
        # mkdir can fail with a `File exist' error if two processes
        # try to create one of the directories concurrently.  Don't
        # stop in that case!
        $MKDIR "$my_dir" 2>/dev/null || :
      done
      IFS="$save_mkdir_p_IFS"

      # Bail out if we (or some other process) failed to create a directory.
      test -d "$my_directory_path" || \
        func_fatal_error "Failed to create \`$1'"
    fi
}


# func_mktempdir [string]
# Make a temporary directory that won't clash with other running
# libtool processes, and avoids race conditions if possible.  If
# given, STRING is the basename for that directory.
func_mktempdir ()
{
    my_template="${TMPDIR-/tmp}/${1-$progname}"

    if test "$opt_dry_run" = ":"; then
      # Return a directory name, but don't create it in dry-run mode
      my_tmpdir="${my_template}-$$"
    else

      # If mktemp works, use that first and foremost
      my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`

      if test ! -d "$my_tmpdir"; then
        # Failing that, at least try and use $RANDOM to avoid a race
        my_tmpdir="${my_template}-${RANDOM-0}$$"

        save_mktempdir_umask=`umask`
        umask 0077
        $MKDIR "$my_tmpdir"
        umask $save_mktempdir_umask
      fi

      # If we're not in dry-run mode, bomb out on failure
      test -d "$my_tmpdir" || \
        func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
    fi

    $ECHO "$my_tmpdir"
}


# func_quote_for_eval arg
# Aesthetically quote ARG to be evaled later.
# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
# is double-quoted, suitable for a subsequent eval, whereas
# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
# which are still active within double quotes backslashified.
func_quote_for_eval ()
{
    case $1 in
      *[\\\`\"\$]*)
	func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;;
      *)
        func_quote_for_eval_unquoted_result="$1" ;;
    esac

    case $func_quote_for_eval_unquoted_result in
      # Double-quote args containing shell metacharacters to delay
      # word splitting, command substitution and and variable
      # expansion for a subsequent eval.
      # Many Bourne shells cannot handle close brackets correctly
      # in scan sets, so we specify it separately.
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
        func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
        ;;
      *)
        func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
    esac
}


# func_quote_for_expand arg
# Aesthetically quote ARG to be evaled later; same as above,
# but do not quote variable references.
func_quote_for_expand ()
{
    case $1 in
      *[\\\`\"]*)
	my_arg=`$ECHO "$1" | $SED \
	    -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
      *)
        my_arg="$1" ;;
    esac

    case $my_arg in
      # Double-quote args containing shell metacharacters to delay
      # word splitting and command substitution for a subsequent eval.
      # Many Bourne shells cannot handle close brackets correctly
      # in scan sets, so we specify it separately.
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
        my_arg="\"$my_arg\""
        ;;
    esac

    func_quote_for_expand_result="$my_arg"
}


# func_show_eval cmd [fail_exp]
# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
# is given, then evaluate it.
func_show_eval ()
{
    my_cmd="$1"
    my_fail_exp="${2-:}"

    ${opt_silent-false} || {
      func_quote_for_expand "$my_cmd"
      eval "func_echo $func_quote_for_expand_result"
    }

    if ${opt_dry_run-false}; then :; else
      eval "$my_cmd"
      my_status=$?
      if test "$my_status" -eq 0; then :; else
	eval "(exit $my_status); $my_fail_exp"
      fi
    fi
}


# func_show_eval_locale cmd [fail_exp]
# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
# is given, then evaluate it.  Use the saved locale for evaluation.
func_show_eval_locale ()
{
    my_cmd="$1"
    my_fail_exp="${2-:}"

    ${opt_silent-false} || {
      func_quote_for_expand "$my_cmd"
      eval "func_echo $func_quote_for_expand_result"
    }

    if ${opt_dry_run-false}; then :; else
      eval "$lt_user_locale
	    $my_cmd"
      my_status=$?
      eval "$lt_safe_locale"
      if test "$my_status" -eq 0; then :; else
	eval "(exit $my_status); $my_fail_exp"
      fi
    fi
}

# func_tr_sh
# Turn $1 into a string suitable for a shell variable name.
# Result is stored in $func_tr_sh_result.  All characters
# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
# if $1 begins with a digit, a '_' is prepended as well.
func_tr_sh ()
{
  case $1 in
  [0-9]* | *[!a-zA-Z0-9_]*)
    func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'`
    ;;
  * )
    func_tr_sh_result=$1
    ;;
  esac
}


# func_version
# Echo version message to standard output and exit.
func_version ()
{
    $opt_debug

    $SED -n '/(C)/!b go
	:more
	/\./!{
	  N
	  s/\n# / /
	  b more
	}
	:go
	/^# '$PROGRAM' (GNU /,/# warranty; / {
        s/^# //
	s/^# *$//
        s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
        p
     }' < "$progpath"
     exit $?
}

# func_usage
# Echo short help message to standard output and exit.
func_usage ()
{
    $opt_debug

    $SED -n '/^# Usage:/,/^#  *.*--help/ {
        s/^# //
	s/^# *$//
	s/\$progname/'$progname'/
	p
    }' < "$progpath"
    echo
    $ECHO "run \`$progname --help | more' for full usage"
    exit $?
}

# func_help [NOEXIT]
# Echo long help message to standard output and exit,
# unless 'noexit' is passed as argument.
func_help ()
{
    $opt_debug

    $SED -n '/^# Usage:/,/# Report bugs to/ {
	:print
        s/^# //
	s/^# *$//
	s*\$progname*'$progname'*
	s*\$host*'"$host"'*
	s*\$SHELL*'"$SHELL"'*
	s*\$LTCC*'"$LTCC"'*
	s*\$LTCFLAGS*'"$LTCFLAGS"'*
	s*\$LD*'"$LD"'*
	s/\$with_gnu_ld/'"$with_gnu_ld"'/
	s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/
	s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/
	p
	d
     }
     /^# .* home page:/b print
     /^# General help using/b print
     ' < "$progpath"
    ret=$?
    if test -z "$1"; then
      exit $ret
    fi
}

# func_missing_arg argname
# Echo program name prefixed message to standard error and set global
# exit_cmd.
func_missing_arg ()
{
    $opt_debug

    func_error "missing argument for $1."
    exit_cmd=exit
}


# func_split_short_opt shortopt
# Set func_split_short_opt_name and func_split_short_opt_arg shell
# variables after splitting SHORTOPT after the 2nd character.
func_split_short_opt ()
{
    my_sed_short_opt='1s/^\(..\).*$/\1/;q'
    my_sed_short_rest='1s/^..\(.*\)$/\1/;q'

    func_split_short_opt_name=`$ECHO "$1" | $SED "$my_sed_short_opt"`
    func_split_short_opt_arg=`$ECHO "$1" | $SED "$my_sed_short_rest"`
} # func_split_short_opt may be replaced by extended shell implementation


# func_split_long_opt longopt
# Set func_split_long_opt_name and func_split_long_opt_arg shell
# variables after splitting LONGOPT at the `=' sign.
func_split_long_opt ()
{
    my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
    my_sed_long_arg='1s/^--[^=]*=//'

    func_split_long_opt_name=`$ECHO "$1" | $SED "$my_sed_long_opt"`
    func_split_long_opt_arg=`$ECHO "$1" | $SED "$my_sed_long_arg"`
} # func_split_long_opt may be replaced by extended shell implementation

exit_cmd=:





magic="%%%MAGIC variable%%%"
magic_exe="%%%MAGIC EXE variable%%%"

# Global variables.
nonopt=
preserve_args=
lo2o="s/\\.lo\$/.${objext}/"
o2lo="s/\\.${objext}\$/.lo/"
extracted_archives=
extracted_serial=0

# If this variable is set in any of the actions, the command in it
# will be execed at the end.  This prevents here-documents from being
# left over by shells.
exec_cmd=

# func_append var value
# Append VALUE to the end of shell variable VAR.
func_append ()
{
    eval "${1}=\$${1}\${2}"
} # func_append may be replaced by extended shell implementation

# func_append_quoted var value
# Quote VALUE and append to the end of shell variable VAR, separated
# by a space.
func_append_quoted ()
{
    func_quote_for_eval "${2}"
    eval "${1}=\$${1}\\ \$func_quote_for_eval_result"
} # func_append_quoted may be replaced by extended shell implementation


# func_arith arithmetic-term...
func_arith ()
{
    func_arith_result=`expr "${@}"`
} # func_arith may be replaced by extended shell implementation


# func_len string
# STRING may not start with a hyphen.
func_len ()
{
    func_len_result=`expr "${1}" : ".*" 2>/dev/null || echo $max_cmd_len`
} # func_len may be replaced by extended shell implementation


# func_lo2o object
func_lo2o ()
{
    func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"`
} # func_lo2o may be replaced by extended shell implementation


# func_xform libobj-or-source
func_xform ()
{
    func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'`
} # func_xform may be replaced by extended shell implementation


# func_fatal_configuration arg...
# Echo program name prefixed message to standard error, followed by
# a configuration failure hint, and exit.
func_fatal_configuration ()
{
    func_error ${1+"$@"}
    func_error "See the $PACKAGE documentation for more information."
    func_fatal_error "Fatal configuration error."
}


# func_config
# Display the configuration for all the tags in this script.
func_config ()
{
    re_begincf='^# ### BEGIN LIBTOOL'
    re_endcf='^# ### END LIBTOOL'

    # Default configuration.
    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"

    # Now print the configurations for the tags.
    for tagname in $taglist; do
      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
    done

    exit $?
}

# func_features
# Display the features supported by this script.
func_features ()
{
    echo "host: $host"
    if test "$build_libtool_libs" = yes; then
      echo "enable shared libraries"
    else
      echo "disable shared libraries"
    fi
    if test "$build_old_libs" = yes; then
      echo "enable static libraries"
    else
      echo "disable static libraries"
    fi

    exit $?
}

# func_enable_tag tagname
# Verify that TAGNAME is valid, and either flag an error and exit, or
# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
# variable here.
func_enable_tag ()
{
  # Global variable:
  tagname="$1"

  re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
  re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
  sed_extractcf="/$re_begincf/,/$re_endcf/p"

  # Validate tagname.
  case $tagname in
    *[!-_A-Za-z0-9,/]*)
      func_fatal_error "invalid tag name: $tagname"
      ;;
  esac

  # Don't test for the "default" C tag, as we know it's
  # there but not specially marked.
  case $tagname in
    CC) ;;
    *)
      if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
	taglist="$taglist $tagname"

	# Evaluate the configuration.  Be careful to quote the path
	# and the sed script, to avoid splitting on whitespace, but
	# also don't use non-portable quotes within backquotes within
	# quotes we have to do it in 2 steps:
	extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
	eval "$extractedcf"
      else
	func_error "ignoring unknown tag $tagname"
      fi
      ;;
  esac
}

# func_check_version_match
# Ensure that we are using m4 macros, and libtool script from the same
# release of libtool.
func_check_version_match ()
{
  if test "$package_revision" != "$macro_revision"; then
    if test "$VERSION" != "$macro_version"; then
      if test -z "$macro_version"; then
        cat >&2 <<_LT_EOF
$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
$progname: definition of this LT_INIT comes from an older release.
$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
$progname: and run autoconf again.
_LT_EOF
      else
        cat >&2 <<_LT_EOF
$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
$progname: and run autoconf again.
_LT_EOF
      fi
    else
      cat >&2 <<_LT_EOF
$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
$progname: but the definition of this LT_INIT comes from revision $macro_revision.
$progname: You should recreate aclocal.m4 with macros from revision $package_revision
$progname: of $PACKAGE $VERSION and run autoconf again.
_LT_EOF
    fi

    exit $EXIT_MISMATCH
  fi
}


# Shorthand for --mode=foo, only valid as the first argument
case $1 in
clean|clea|cle|cl)
  shift; set dummy --mode clean ${1+"$@"}; shift
  ;;
compile|compil|compi|comp|com|co|c)
  shift; set dummy --mode compile ${1+"$@"}; shift
  ;;
execute|execut|execu|exec|exe|ex|e)
  shift; set dummy --mode execute ${1+"$@"}; shift
  ;;
finish|finis|fini|fin|fi|f)
  shift; set dummy --mode finish ${1+"$@"}; shift
  ;;
install|instal|insta|inst|ins|in|i)
  shift; set dummy --mode install ${1+"$@"}; shift
  ;;
link|lin|li|l)
  shift; set dummy --mode link ${1+"$@"}; shift
  ;;
uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
  shift; set dummy --mode uninstall ${1+"$@"}; shift
  ;;
esac



# Option defaults:
opt_debug=:
opt_dry_run=false
opt_config=false
opt_preserve_dup_deps=false
opt_features=false
opt_finish=false
opt_help=false
opt_help_all=false
opt_silent=:
opt_warning=:
opt_verbose=:
opt_silent=false
opt_verbose=false


# Parse options once, thoroughly.  This comes as soon as possible in the
# script to make things like `--version' happen as quickly as we can.
{
  # this just eases exit handling
  while test $# -gt 0; do
    opt="$1"
    shift
    case $opt in
      --debug|-x)	opt_debug='set -x'
			func_echo "enabling shell trace mode"
			$opt_debug
			;;
      --dry-run|--dryrun|-n)
			opt_dry_run=:
			;;
      --config)
			opt_config=:
func_config
			;;
      --dlopen|-dlopen)
			optarg="$1"
			opt_dlopen="${opt_dlopen+$opt_dlopen
}$optarg"
			shift
			;;
      --preserve-dup-deps)
			opt_preserve_dup_deps=:
			;;
      --features)
			opt_features=:
func_features
			;;
      --finish)
			opt_finish=:
set dummy --mode finish ${1+"$@"}; shift
			;;
      --help)
			opt_help=:
			;;
      --help-all)
			opt_help_all=:
opt_help=': help-all'
			;;
      --mode)
			test $# = 0 && func_missing_arg $opt && break
			optarg="$1"
			opt_mode="$optarg"
case $optarg in
  # Valid mode arguments:
  clean|compile|execute|finish|install|link|relink|uninstall) ;;

  # Catch anything else as an error
  *) func_error "invalid argument for $opt"
     exit_cmd=exit
     break
     ;;
esac
			shift
			;;
      --no-silent|--no-quiet)
			opt_silent=false
func_append preserve_args " $opt"
			;;
      --no-warning|--no-warn)
			opt_warning=false
func_append preserve_args " $opt"
			;;
      --no-verbose)
			opt_verbose=false
func_append preserve_args " $opt"
			;;
      --silent|--quiet)
			opt_silent=:
func_append preserve_args " $opt"
        opt_verbose=false
			;;
      --verbose|-v)
			opt_verbose=:
func_append preserve_args " $opt"
opt_silent=false
			;;
      --tag)
			test $# = 0 && func_missing_arg $opt && break
			optarg="$1"
			opt_tag="$optarg"
func_append preserve_args " $opt $optarg"
func_enable_tag "$optarg"
			shift
			;;

      -\?|-h)		func_usage				;;
      --help)		func_help				;;
      --version)	func_version				;;

      # Separate optargs to long options:
      --*=*)
			func_split_long_opt "$opt"
			set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"}
			shift
			;;

      # Separate non-argument short options:
      -\?*|-h*|-n*|-v*)
			func_split_short_opt "$opt"
			set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"}
			shift
			;;

      --)		break					;;
      -*)		func_fatal_help "unrecognized option \`$opt'" ;;
      *)		set dummy "$opt" ${1+"$@"};	shift; break  ;;
    esac
  done

  # Validate options:

  # save first non-option argument
  if test "$#" -gt 0; then
    nonopt="$opt"
    shift
  fi

  # preserve --debug
  test "$opt_debug" = : || func_append preserve_args " --debug"

  case $host in
    *cygwin* | *mingw* | *pw32* | *cegcc*)
      # don't eliminate duplications in $postdeps and $predeps
      opt_duplicate_compiler_generated_deps=:
      ;;
    *)
      opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
      ;;
  esac

  $opt_help || {
    # Sanity checks first:
    func_check_version_match

    if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
      func_fatal_configuration "not configured to build any kind of library"
    fi

    # Darwin sucks
    eval std_shrext=\"$shrext_cmds\"

    # Only execute mode is allowed to have -dlopen flags.
    if test -n "$opt_dlopen" && test "$opt_mode" != execute; then
      func_error "unrecognized option \`-dlopen'"
      $ECHO "$help" 1>&2
      exit $EXIT_FAILURE
    fi

    # Change the help message to a mode-specific one.
    generic_help="$help"
    help="Try \`$progname --help --mode=$opt_mode' for more information."
  }


  # Bail if the options were screwed
  $exit_cmd $EXIT_FAILURE
}




## ----------- ##
##    Main.    ##
## ----------- ##

# func_lalib_p file
# True iff FILE is a libtool `.la' library or `.lo' object file.
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_lalib_p ()
{
    test -f "$1" &&
      $SED -e 4q "$1" 2>/dev/null \
        | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
}

# func_lalib_unsafe_p file
# True iff FILE is a libtool `.la' library or `.lo' object file.
# This function implements the same check as func_lalib_p without
# resorting to external programs.  To this end, it redirects stdin and
# closes it afterwards, without saving the original file descriptor.
# As a safety measure, use it only where a negative result would be
# fatal anyway.  Works if `file' does not exist.
func_lalib_unsafe_p ()
{
    lalib_p=no
    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
	for lalib_p_l in 1 2 3 4
	do
	    read lalib_p_line
	    case "$lalib_p_line" in
		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
	    esac
	done
	exec 0<&5 5<&-
    fi
    test "$lalib_p" = yes
}

# func_ltwrapper_script_p file
# True iff FILE is a libtool wrapper script
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_ltwrapper_script_p ()
{
    func_lalib_p "$1"
}

# func_ltwrapper_executable_p file
# True iff FILE is a libtool wrapper executable
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_ltwrapper_executable_p ()
{
    func_ltwrapper_exec_suffix=
    case $1 in
    *.exe) ;;
    *) func_ltwrapper_exec_suffix=.exe ;;
    esac
    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
}

# func_ltwrapper_scriptname file
# Assumes file is an ltwrapper_executable
# uses $file to determine the appropriate filename for a
# temporary ltwrapper_script.
func_ltwrapper_scriptname ()
{
    func_dirname_and_basename "$1" "" "."
    func_stripname '' '.exe' "$func_basename_result"
    func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
}

# func_ltwrapper_p file
# True iff FILE is a libtool wrapper script or wrapper executable
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_ltwrapper_p ()
{
    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
}


# func_execute_cmds commands fail_cmd
# Execute tilde-delimited COMMANDS.
# If FAIL_CMD is given, eval that upon failure.
# FAIL_CMD may read-access the current command in variable CMD!
func_execute_cmds ()
{
    $opt_debug
    save_ifs=$IFS; IFS='~'
    for cmd in $1; do
      IFS=$save_ifs
      eval cmd=\"$cmd\"
      func_show_eval "$cmd" "${2-:}"
    done
    IFS=$save_ifs
}


# func_source file
# Source FILE, adding directory component if necessary.
# Note that it is not necessary on cygwin/mingw to append a dot to
# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
# behavior happens only for exec(3), not for open(2)!  Also, sourcing
# `FILE.' does not work on cygwin managed mounts.
func_source ()
{
    $opt_debug
    case $1 in
    */* | *\\*)	. "$1" ;;
    *)		. "./$1" ;;
    esac
}


# func_resolve_sysroot PATH
# Replace a leading = in PATH with a sysroot.  Store the result into
# func_resolve_sysroot_result
func_resolve_sysroot ()
{
  func_resolve_sysroot_result=$1
  case $func_resolve_sysroot_result in
  =*)
    func_stripname '=' '' "$func_resolve_sysroot_result"
    func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
    ;;
  esac
}

# func_replace_sysroot PATH
# If PATH begins with the sysroot, replace it with = and
# store the result into func_replace_sysroot_result.
func_replace_sysroot ()
{
  case "$lt_sysroot:$1" in
  ?*:"$lt_sysroot"*)
    func_stripname "$lt_sysroot" '' "$1"
    func_replace_sysroot_result="=$func_stripname_result"
    ;;
  *)
    # Including no sysroot.
    func_replace_sysroot_result=$1
    ;;
  esac
}

# func_infer_tag arg
# Infer tagged configuration to use if any are available and
# if one wasn't chosen via the "--tag" command line option.
# Only attempt this if the compiler in the base compile
# command doesn't match the default compiler.
# arg is usually of the form 'gcc ...'
func_infer_tag ()
{
    $opt_debug
    if test -n "$available_tags" && test -z "$tagname"; then
      CC_quoted=
      for arg in $CC; do
	func_append_quoted CC_quoted "$arg"
      done
      CC_expanded=`func_echo_all $CC`
      CC_quoted_expanded=`func_echo_all $CC_quoted`
      case $@ in
      # Blanks in the command may have been stripped by the calling shell,
      # but not from the CC environment variable when configure was run.
      " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
      " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
      # Blanks at the start of $base_compile will cause this to fail
      # if we don't check for them as well.
      *)
	for z in $available_tags; do
	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
	    # Evaluate the configuration.
	    eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
	    CC_quoted=
	    for arg in $CC; do
	      # Double-quote args containing other shell metacharacters.
	      func_append_quoted CC_quoted "$arg"
	    done
	    CC_expanded=`func_echo_all $CC`
	    CC_quoted_expanded=`func_echo_all $CC_quoted`
	    case "$@ " in
	    " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
	    " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
	      # The compiler in the base compile command matches
	      # the one in the tagged configuration.
	      # Assume this is the tagged configuration we want.
	      tagname=$z
	      break
	      ;;
	    esac
	  fi
	done
	# If $tagname still isn't set, then no tagged configuration
	# was found and let the user know that the "--tag" command
	# line option must be used.
	if test -z "$tagname"; then
	  func_echo "unable to infer tagged configuration"
	  func_fatal_error "specify a tag with \`--tag'"
#	else
#	  func_verbose "using $tagname tagged configuration"
	fi
	;;
      esac
    fi
}



# func_write_libtool_object output_name pic_name nonpic_name
# Create a libtool object file (analogous to a ".la" file),
# but don't create it if we're doing a dry run.
func_write_libtool_object ()
{
    write_libobj=${1}
    if test "$build_libtool_libs" = yes; then
      write_lobj=\'${2}\'
    else
      write_lobj=none
    fi

    if test "$build_old_libs" = yes; then
      write_oldobj=\'${3}\'
    else
      write_oldobj=none
    fi

    $opt_dry_run || {
      cat >${write_libobj}T </dev/null`
    if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then
      func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
        $SED -e "$lt_sed_naive_backslashify"`
    else
      func_convert_core_file_wine_to_w32_result=
    fi
  fi
}
# end: func_convert_core_file_wine_to_w32


# func_convert_core_path_wine_to_w32 ARG
# Helper function used by path conversion functions when $build is *nix, and
# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
# configured wine environment available, with the winepath program in $build's
# $PATH. Assumes ARG has no leading or trailing path separator characters.
#
# ARG is path to be converted from $build format to win32.
# Result is available in $func_convert_core_path_wine_to_w32_result.
# Unconvertible file (directory) names in ARG are skipped; if no directory names
# are convertible, then the result may be empty.
func_convert_core_path_wine_to_w32 ()
{
  $opt_debug
  # unfortunately, winepath doesn't convert paths, only file names
  func_convert_core_path_wine_to_w32_result=""
  if test -n "$1"; then
    oldIFS=$IFS
    IFS=:
    for func_convert_core_path_wine_to_w32_f in $1; do
      IFS=$oldIFS
      func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
      if test -n "$func_convert_core_file_wine_to_w32_result" ; then
        if test -z "$func_convert_core_path_wine_to_w32_result"; then
          func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result"
        else
          func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
        fi
      fi
    done
    IFS=$oldIFS
  fi
}
# end: func_convert_core_path_wine_to_w32


# func_cygpath ARGS...
# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
# (2), returns the Cygwin file name or path in func_cygpath_result (input
# file name or path is assumed to be in w32 format, as previously converted
# from $build's *nix or MSYS format). In case (3), returns the w32 file name
# or path in func_cygpath_result (input file name or path is assumed to be in
# Cygwin format). Returns an empty string on error.
#
# ARGS are passed to cygpath, with the last one being the file name or path to
# be converted.
#
# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
# environment variable; do not put it in $PATH.
func_cygpath ()
{
  $opt_debug
  if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
    func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
    if test "$?" -ne 0; then
      # on failure, ensure result is empty
      func_cygpath_result=
    fi
  else
    func_cygpath_result=
    func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'"
  fi
}
#end: func_cygpath


# func_convert_core_msys_to_w32 ARG
# Convert file name or path ARG from MSYS format to w32 format.  Return
# result in func_convert_core_msys_to_w32_result.
func_convert_core_msys_to_w32 ()
{
  $opt_debug
  # awkward: cmd appends spaces to result
  func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
    $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
}
#end: func_convert_core_msys_to_w32


# func_convert_file_check ARG1 ARG2
# Verify that ARG1 (a file name in $build format) was converted to $host
# format in ARG2. Otherwise, emit an error message, but continue (resetting
# func_to_host_file_result to ARG1).
func_convert_file_check ()
{
  $opt_debug
  if test -z "$2" && test -n "$1" ; then
    func_error "Could not determine host file name corresponding to"
    func_error "  \`$1'"
    func_error "Continuing, but uninstalled executables may not work."
    # Fallback:
    func_to_host_file_result="$1"
  fi
}
# end func_convert_file_check


# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
# Verify that FROM_PATH (a path in $build format) was converted to $host
# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
# func_to_host_file_result to a simplistic fallback value (see below).
func_convert_path_check ()
{
  $opt_debug
  if test -z "$4" && test -n "$3"; then
    func_error "Could not determine the host path corresponding to"
    func_error "  \`$3'"
    func_error "Continuing, but uninstalled executables may not work."
    # Fallback.  This is a deliberately simplistic "conversion" and
    # should not be "improved".  See libtool.info.
    if test "x$1" != "x$2"; then
      lt_replace_pathsep_chars="s|$1|$2|g"
      func_to_host_path_result=`echo "$3" |
        $SED -e "$lt_replace_pathsep_chars"`
    else
      func_to_host_path_result="$3"
    fi
  fi
}
# end func_convert_path_check


# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
# and appending REPL if ORIG matches BACKPAT.
func_convert_path_front_back_pathsep ()
{
  $opt_debug
  case $4 in
  $1 ) func_to_host_path_result="$3$func_to_host_path_result"
    ;;
  esac
  case $4 in
  $2 ) func_append func_to_host_path_result "$3"
    ;;
  esac
}
# end func_convert_path_front_back_pathsep


##################################################
# $build to $host FILE NAME CONVERSION FUNCTIONS #
##################################################
# invoked via `$to_host_file_cmd ARG'
#
# In each case, ARG is the path to be converted from $build to $host format.
# Result will be available in $func_to_host_file_result.


# func_to_host_file ARG
# Converts the file name ARG from $build format to $host format. Return result
# in func_to_host_file_result.
func_to_host_file ()
{
  $opt_debug
  $to_host_file_cmd "$1"
}
# end func_to_host_file


# func_to_tool_file ARG LAZY
# converts the file name ARG from $build format to toolchain format. Return
# result in func_to_tool_file_result.  If the conversion in use is listed
# in (the comma separated) LAZY, no conversion takes place.
func_to_tool_file ()
{
  $opt_debug
  case ,$2, in
    *,"$to_tool_file_cmd",*)
      func_to_tool_file_result=$1
      ;;
    *)
      $to_tool_file_cmd "$1"
      func_to_tool_file_result=$func_to_host_file_result
      ;;
  esac
}
# end func_to_tool_file


# func_convert_file_noop ARG
# Copy ARG to func_to_host_file_result.
func_convert_file_noop ()
{
  func_to_host_file_result="$1"
}
# end func_convert_file_noop


# func_convert_file_msys_to_w32 ARG
# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
# conversion to w32 is not available inside the cwrapper.  Returns result in
# func_to_host_file_result.
func_convert_file_msys_to_w32 ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    func_convert_core_msys_to_w32 "$1"
    func_to_host_file_result="$func_convert_core_msys_to_w32_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_msys_to_w32


# func_convert_file_cygwin_to_w32 ARG
# Convert file name ARG from Cygwin to w32 format.  Returns result in
# func_to_host_file_result.
func_convert_file_cygwin_to_w32 ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
    # LT_CYGPATH in this case.
    func_to_host_file_result=`cygpath -m "$1"`
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_cygwin_to_w32


# func_convert_file_nix_to_w32 ARG
# Convert file name ARG from *nix to w32 format.  Requires a wine environment
# and a working winepath. Returns result in func_to_host_file_result.
func_convert_file_nix_to_w32 ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    func_convert_core_file_wine_to_w32 "$1"
    func_to_host_file_result="$func_convert_core_file_wine_to_w32_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_nix_to_w32


# func_convert_file_msys_to_cygwin ARG
# Convert file name ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
# Returns result in func_to_host_file_result.
func_convert_file_msys_to_cygwin ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    func_convert_core_msys_to_w32 "$1"
    func_cygpath -u "$func_convert_core_msys_to_w32_result"
    func_to_host_file_result="$func_cygpath_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_msys_to_cygwin


# func_convert_file_nix_to_cygwin ARG
# Convert file name ARG from *nix to Cygwin format.  Requires Cygwin installed
# in a wine environment, working winepath, and LT_CYGPATH set.  Returns result
# in func_to_host_file_result.
func_convert_file_nix_to_cygwin ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
    func_convert_core_file_wine_to_w32 "$1"
    func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
    func_to_host_file_result="$func_cygpath_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_nix_to_cygwin


#############################################
# $build to $host PATH CONVERSION FUNCTIONS #
#############################################
# invoked via `$to_host_path_cmd ARG'
#
# In each case, ARG is the path to be converted from $build to $host format.
# The result will be available in $func_to_host_path_result.
#
# Path separators are also converted from $build format to $host format.  If
# ARG begins or ends with a path separator character, it is preserved (but
# converted to $host format) on output.
#
# All path conversion functions are named using the following convention:
#   file name conversion function    : func_convert_file_X_to_Y ()
#   path conversion function         : func_convert_path_X_to_Y ()
# where, for any given $build/$host combination the 'X_to_Y' value is the
# same.  If conversion functions are added for new $build/$host combinations,
# the two new functions must follow this pattern, or func_init_to_host_path_cmd
# will break.


# func_init_to_host_path_cmd
# Ensures that function "pointer" variable $to_host_path_cmd is set to the
# appropriate value, based on the value of $to_host_file_cmd.
to_host_path_cmd=
func_init_to_host_path_cmd ()
{
  $opt_debug
  if test -z "$to_host_path_cmd"; then
    func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
    to_host_path_cmd="func_convert_path_${func_stripname_result}"
  fi
}


# func_to_host_path ARG
# Converts the path ARG from $build format to $host format. Return result
# in func_to_host_path_result.
func_to_host_path ()
{
  $opt_debug
  func_init_to_host_path_cmd
  $to_host_path_cmd "$1"
}
# end func_to_host_path


# func_convert_path_noop ARG
# Copy ARG to func_to_host_path_result.
func_convert_path_noop ()
{
  func_to_host_path_result="$1"
}
# end func_convert_path_noop


# func_convert_path_msys_to_w32 ARG
# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
# conversion to w32 is not available inside the cwrapper.  Returns result in
# func_to_host_path_result.
func_convert_path_msys_to_w32 ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # Remove leading and trailing path separator characters from ARG.  MSYS
    # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
    # and winepath ignores them completely.
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
    func_to_host_path_result="$func_convert_core_msys_to_w32_result"
    func_convert_path_check : ";" \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
  fi
}
# end func_convert_path_msys_to_w32


# func_convert_path_cygwin_to_w32 ARG
# Convert path ARG from Cygwin to w32 format.  Returns result in
# func_to_host_file_result.
func_convert_path_cygwin_to_w32 ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # See func_convert_path_msys_to_w32:
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
    func_convert_path_check : ";" \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
  fi
}
# end func_convert_path_cygwin_to_w32


# func_convert_path_nix_to_w32 ARG
# Convert path ARG from *nix to w32 format.  Requires a wine environment and
# a working winepath.  Returns result in func_to_host_file_result.
func_convert_path_nix_to_w32 ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # See func_convert_path_msys_to_w32:
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
    func_to_host_path_result="$func_convert_core_path_wine_to_w32_result"
    func_convert_path_check : ";" \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
  fi
}
# end func_convert_path_nix_to_w32


# func_convert_path_msys_to_cygwin ARG
# Convert path ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
# Returns result in func_to_host_file_result.
func_convert_path_msys_to_cygwin ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # See func_convert_path_msys_to_w32:
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
    func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
    func_to_host_path_result="$func_cygpath_result"
    func_convert_path_check : : \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
  fi
}
# end func_convert_path_msys_to_cygwin


# func_convert_path_nix_to_cygwin ARG
# Convert path ARG from *nix to Cygwin format.  Requires Cygwin installed in a
# a wine environment, working winepath, and LT_CYGPATH set.  Returns result in
# func_to_host_file_result.
func_convert_path_nix_to_cygwin ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # Remove leading and trailing path separator characters from
    # ARG. msys behavior is inconsistent here, cygpath turns them
    # into '.;' and ';.', and winepath ignores them completely.
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
    func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
    func_to_host_path_result="$func_cygpath_result"
    func_convert_path_check : : \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
  fi
}
# end func_convert_path_nix_to_cygwin


# func_mode_compile arg...
func_mode_compile ()
{
    $opt_debug
    # Get the compilation command and the source file.
    base_compile=
    srcfile="$nonopt"  #  always keep a non-empty value in "srcfile"
    suppress_opt=yes
    suppress_output=
    arg_mode=normal
    libobj=
    later=
    pie_flag=

    for arg
    do
      case $arg_mode in
      arg  )
	# do not "continue".  Instead, add this to base_compile
	lastarg="$arg"
	arg_mode=normal
	;;

      target )
	libobj="$arg"
	arg_mode=normal
	continue
	;;

      normal )
	# Accept any command-line options.
	case $arg in
	-o)
	  test -n "$libobj" && \
	    func_fatal_error "you cannot specify \`-o' more than once"
	  arg_mode=target
	  continue
	  ;;

	-pie | -fpie | -fPIE)
          func_append pie_flag " $arg"
	  continue
	  ;;

	-shared | -static | -prefer-pic | -prefer-non-pic)
	  func_append later " $arg"
	  continue
	  ;;

	-no-suppress)
	  suppress_opt=no
	  continue
	  ;;

	-Xcompiler)
	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
	  continue      #  The current "srcfile" will either be retained or
	  ;;            #  replaced later.  I would guess that would be a bug.

	-Wc,*)
	  func_stripname '-Wc,' '' "$arg"
	  args=$func_stripname_result
	  lastarg=
	  save_ifs="$IFS"; IFS=','
	  for arg in $args; do
	    IFS="$save_ifs"
	    func_append_quoted lastarg "$arg"
	  done
	  IFS="$save_ifs"
	  func_stripname ' ' '' "$lastarg"
	  lastarg=$func_stripname_result

	  # Add the arguments to base_compile.
	  func_append base_compile " $lastarg"
	  continue
	  ;;

	*)
	  # Accept the current argument as the source file.
	  # The previous "srcfile" becomes the current argument.
	  #
	  lastarg="$srcfile"
	  srcfile="$arg"
	  ;;
	esac  #  case $arg
	;;
      esac    #  case $arg_mode

      # Aesthetically quote the previous argument.
      func_append_quoted base_compile "$lastarg"
    done # for arg

    case $arg_mode in
    arg)
      func_fatal_error "you must specify an argument for -Xcompile"
      ;;
    target)
      func_fatal_error "you must specify a target with \`-o'"
      ;;
    *)
      # Get the name of the library object.
      test -z "$libobj" && {
	func_basename "$srcfile"
	libobj="$func_basename_result"
      }
      ;;
    esac

    # Recognize several different file suffixes.
    # If the user specifies -o file.o, it is replaced with file.lo
    case $libobj in
    *.[cCFSifmso] | \
    *.ada | *.adb | *.ads | *.asm | \
    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
      func_xform "$libobj"
      libobj=$func_xform_result
      ;;
    esac

    case $libobj in
    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
    *)
      func_fatal_error "cannot determine name of library object from \`$libobj'"
      ;;
    esac

    func_infer_tag $base_compile

    for arg in $later; do
      case $arg in
      -shared)
	test "$build_libtool_libs" != yes && \
	  func_fatal_configuration "can not build a shared library"
	build_old_libs=no
	continue
	;;

      -static)
	build_libtool_libs=no
	build_old_libs=yes
	continue
	;;

      -prefer-pic)
	pic_mode=yes
	continue
	;;

      -prefer-non-pic)
	pic_mode=no
	continue
	;;
      esac
    done

    func_quote_for_eval "$libobj"
    test "X$libobj" != "X$func_quote_for_eval_result" \
      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
      && func_warning "libobj name \`$libobj' may not contain shell special characters."
    func_dirname_and_basename "$obj" "/" ""
    objname="$func_basename_result"
    xdir="$func_dirname_result"
    lobj=${xdir}$objdir/$objname

    test -z "$base_compile" && \
      func_fatal_help "you must specify a compilation command"

    # Delete any leftover library objects.
    if test "$build_old_libs" = yes; then
      removelist="$obj $lobj $libobj ${libobj}T"
    else
      removelist="$lobj $libobj ${libobj}T"
    fi

    # On Cygwin there's no "real" PIC flag so we must build both object types
    case $host_os in
    cygwin* | mingw* | pw32* | os2* | cegcc*)
      pic_mode=default
      ;;
    esac
    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
      # non-PIC code in shared libraries is not supported
      pic_mode=default
    fi

    # Calculate the filename of the output object if compiler does
    # not support -o with -c
    if test "$compiler_c_o" = no; then
      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext}
      lockfile="$output_obj.lock"
    else
      output_obj=
      need_locks=no
      lockfile=
    fi

    # Lock this critical section if it is needed
    # We use this script file to make the link, it avoids creating a new file
    if test "$need_locks" = yes; then
      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
	func_echo "Waiting for $lockfile to be removed"
	sleep 2
      done
    elif test "$need_locks" = warn; then
      if test -f "$lockfile"; then
	$ECHO "\
*** ERROR, $lockfile exists and contains:
`cat $lockfile 2>/dev/null`

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$opt_dry_run || $RM $removelist
	exit $EXIT_FAILURE
      fi
      func_append removelist " $output_obj"
      $ECHO "$srcfile" > "$lockfile"
    fi

    $opt_dry_run || $RM $removelist
    func_append removelist " $lockfile"
    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15

    func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
    srcfile=$func_to_tool_file_result
    func_quote_for_eval "$srcfile"
    qsrcfile=$func_quote_for_eval_result

    # Only build a PIC object if we are building libtool libraries.
    if test "$build_libtool_libs" = yes; then
      # Without this assignment, base_compile gets emptied.
      fbsd_hideous_sh_bug=$base_compile

      if test "$pic_mode" != no; then
	command="$base_compile $qsrcfile $pic_flag"
      else
	# Don't build PIC code
	command="$base_compile $qsrcfile"
      fi

      func_mkdir_p "$xdir$objdir"

      if test -z "$output_obj"; then
	# Place PIC objects in $objdir
	func_append command " -o $lobj"
      fi

      func_show_eval_locale "$command"	\
          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'

      if test "$need_locks" = warn &&
	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
	$ECHO "\
*** ERROR, $lockfile contains:
`cat $lockfile 2>/dev/null`

but it should contain:
$srcfile

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$opt_dry_run || $RM $removelist
	exit $EXIT_FAILURE
      fi

      # Just move the object if needed, then go on to compile the next one
      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
	func_show_eval '$MV "$output_obj" "$lobj"' \
	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
      fi

      # Allow error messages only from the first compilation.
      if test "$suppress_opt" = yes; then
	suppress_output=' >/dev/null 2>&1'
      fi
    fi

    # Only build a position-dependent object if we build old libraries.
    if test "$build_old_libs" = yes; then
      if test "$pic_mode" != yes; then
	# Don't build PIC code
	command="$base_compile $qsrcfile$pie_flag"
      else
	command="$base_compile $qsrcfile $pic_flag"
      fi
      if test "$compiler_c_o" = yes; then
	func_append command " -o $obj"
      fi

      # Suppress compiler output if we already did a PIC compilation.
      func_append command "$suppress_output"
      func_show_eval_locale "$command" \
        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'

      if test "$need_locks" = warn &&
	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
	$ECHO "\
*** ERROR, $lockfile contains:
`cat $lockfile 2>/dev/null`

but it should contain:
$srcfile

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$opt_dry_run || $RM $removelist
	exit $EXIT_FAILURE
      fi

      # Just move the object if needed
      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
	func_show_eval '$MV "$output_obj" "$obj"' \
	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
      fi
    fi

    $opt_dry_run || {
      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"

      # Unlock the critical section if it was locked
      if test "$need_locks" != no; then
	removelist=$lockfile
        $RM "$lockfile"
      fi
    }

    exit $EXIT_SUCCESS
}

$opt_help || {
  test "$opt_mode" = compile && func_mode_compile ${1+"$@"}
}

func_mode_help ()
{
    # We need to display help for each of the modes.
    case $opt_mode in
      "")
        # Generic help is extracted from the usage comments
        # at the start of this file.
        func_help
        ;;

      clean)
        $ECHO \
"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...

Remove files from the build directory.

RM is the name of the program to use to delete files associated with each FILE
(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
to RM.

If FILE is a libtool library, object or program, all the files associated
with it are deleted. Otherwise, only FILE itself is deleted using RM."
        ;;

      compile)
      $ECHO \
"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE

Compile a source file into a libtool library object.

This mode accepts the following additional options:

  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
  -no-suppress      do not suppress compiler output for multiple passes
  -prefer-pic       try to build PIC objects only
  -prefer-non-pic   try to build non-PIC objects only
  -shared           do not build a \`.o' file suitable for static linking
  -static           only build a \`.o' file suitable for static linking
  -Wc,FLAG          pass FLAG directly to the compiler

COMPILE-COMMAND is a command to be used in creating a \`standard' object file
from the given SOURCEFILE.

The output file name is determined by removing the directory component from
SOURCEFILE, then substituting the C source code suffix \`.c' with the
library object suffix, \`.lo'."
        ;;

      execute)
        $ECHO \
"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...

Automatically set library path, then run a program.

This mode accepts the following additional options:

  -dlopen FILE      add the directory containing FILE to the library path

This mode sets the library path environment variable according to \`-dlopen'
flags.

If any of the ARGS are libtool executable wrappers, then they are translated
into their corresponding uninstalled binary, and any of their required library
directories are added to the library path.

Then, COMMAND is executed, with ARGS as arguments."
        ;;

      finish)
        $ECHO \
"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...

Complete the installation of libtool libraries.

Each LIBDIR is a directory that contains libtool libraries.

The commands that this mode executes may require superuser privileges.  Use
the \`--dry-run' option if you just want to see what would be executed."
        ;;

      install)
        $ECHO \
"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...

Install executables or libraries.

INSTALL-COMMAND is the installation command.  The first component should be
either the \`install' or \`cp' program.

The following components of INSTALL-COMMAND are treated specially:

  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation

The rest of the components are interpreted as arguments to that command (only
BSD-compatible install options are recognized)."
        ;;

      link)
        $ECHO \
"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...

Link object files or libraries together to form another library, or to
create an executable program.

LINK-COMMAND is a command using the C compiler that you would use to create
a program from several object files.

The following components of LINK-COMMAND are treated specially:

  -all-static       do not do any dynamic linking at all
  -avoid-version    do not add a version suffix if possible
  -bindir BINDIR    specify path to binaries directory (for systems where
                    libraries must be found in the PATH setting at runtime)
  -dlopen FILE      \`-dlpreopen' FILE if it cannot be dlopened at runtime
  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
  -export-symbols SYMFILE
                    try to export only the symbols listed in SYMFILE
  -export-symbols-regex REGEX
                    try to export only the symbols matching REGEX
  -LLIBDIR          search LIBDIR for required installed libraries
  -lNAME            OUTPUT-FILE requires the installed library libNAME
  -module           build a library that can dlopened
  -no-fast-install  disable the fast-install mode
  -no-install       link a not-installable executable
  -no-undefined     declare that a library does not refer to external symbols
  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
  -objectlist FILE  Use a list of object files found in FILE to specify objects
  -precious-files-regex REGEX
                    don't remove output files matching REGEX
  -release RELEASE  specify package release information
  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
  -shared           only do dynamic linking of libtool libraries
  -shrext SUFFIX    override the standard shared library file extension
  -static           do not do any dynamic linking of uninstalled libtool libraries
  -static-libtool-libs
                    do not do any dynamic linking of libtool libraries
  -version-info CURRENT[:REVISION[:AGE]]
                    specify library version info [each variable defaults to 0]
  -weak LIBNAME     declare that the target provides the LIBNAME interface
  -Wc,FLAG
  -Xcompiler FLAG   pass linker-specific FLAG directly to the compiler
  -Wl,FLAG
  -Xlinker FLAG     pass linker-specific FLAG directly to the linker
  -XCClinker FLAG   pass link-specific FLAG to the compiler driver (CC)

All other options (arguments beginning with \`-') are ignored.

Every other argument is treated as a filename.  Files ending in \`.la' are
treated as uninstalled libtool libraries, other files are standard or library
object files.

If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
only library objects (\`.lo' files) may be specified, and \`-rpath' is
required, except when creating a convenience library.

If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
using \`ar' and \`ranlib', or on Windows using \`lib'.

If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
is created, otherwise an executable program is created."
        ;;

      uninstall)
        $ECHO \
"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...

Remove libraries from an installation directory.

RM is the name of the program to use to delete files associated with each FILE
(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
to RM.

If FILE is a libtool library, all the files associated with it are deleted.
Otherwise, only FILE itself is deleted using RM."
        ;;

      *)
        func_fatal_help "invalid operation mode \`$opt_mode'"
        ;;
    esac

    echo
    $ECHO "Try \`$progname --help' for more information about other modes."
}

# Now that we've collected a possible --mode arg, show help if necessary
if $opt_help; then
  if test "$opt_help" = :; then
    func_mode_help
  else
    {
      func_help noexit
      for opt_mode in compile link execute install finish uninstall clean; do
	func_mode_help
      done
    } | sed -n '1p; 2,$s/^Usage:/  or: /p'
    {
      func_help noexit
      for opt_mode in compile link execute install finish uninstall clean; do
	echo
	func_mode_help
      done
    } |
    sed '1d
      /^When reporting/,/^Report/{
	H
	d
      }
      $x
      /information about other modes/d
      /more detailed .*MODE/d
      s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
  fi
  exit $?
fi


# func_mode_execute arg...
func_mode_execute ()
{
    $opt_debug
    # The first argument is the command name.
    cmd="$nonopt"
    test -z "$cmd" && \
      func_fatal_help "you must specify a COMMAND"

    # Handle -dlopen flags immediately.
    for file in $opt_dlopen; do
      test -f "$file" \
	|| func_fatal_help "\`$file' is not a file"

      dir=
      case $file in
      *.la)
	func_resolve_sysroot "$file"
	file=$func_resolve_sysroot_result

	# Check to see that this really is a libtool archive.
	func_lalib_unsafe_p "$file" \
	  || func_fatal_help "\`$lib' is not a valid libtool archive"

	# Read the libtool library.
	dlname=
	library_names=
	func_source "$file"

	# Skip this library if it cannot be dlopened.
	if test -z "$dlname"; then
	  # Warn if it was a shared library.
	  test -n "$library_names" && \
	    func_warning "\`$file' was not linked with \`-export-dynamic'"
	  continue
	fi

	func_dirname "$file" "" "."
	dir="$func_dirname_result"

	if test -f "$dir/$objdir/$dlname"; then
	  func_append dir "/$objdir"
	else
	  if test ! -f "$dir/$dlname"; then
	    func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
	  fi
	fi
	;;

      *.lo)
	# Just add the directory containing the .lo file.
	func_dirname "$file" "" "."
	dir="$func_dirname_result"
	;;

      *)
	func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
	continue
	;;
      esac

      # Get the absolute pathname.
      absdir=`cd "$dir" && pwd`
      test -n "$absdir" && dir="$absdir"

      # Now add the directory to shlibpath_var.
      if eval "test -z \"\$$shlibpath_var\""; then
	eval "$shlibpath_var=\"\$dir\""
      else
	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
      fi
    done

    # This variable tells wrapper scripts just to set shlibpath_var
    # rather than running their programs.
    libtool_execute_magic="$magic"

    # Check if any of the arguments is a wrapper script.
    args=
    for file
    do
      case $file in
      -* | *.la | *.lo ) ;;
      *)
	# Do a test to see if this is really a libtool program.
	if func_ltwrapper_script_p "$file"; then
	  func_source "$file"
	  # Transform arg to wrapped name.
	  file="$progdir/$program"
	elif func_ltwrapper_executable_p "$file"; then
	  func_ltwrapper_scriptname "$file"
	  func_source "$func_ltwrapper_scriptname_result"
	  # Transform arg to wrapped name.
	  file="$progdir/$program"
	fi
	;;
      esac
      # Quote arguments (to preserve shell metacharacters).
      func_append_quoted args "$file"
    done

    if test "X$opt_dry_run" = Xfalse; then
      if test -n "$shlibpath_var"; then
	# Export the shlibpath_var.
	eval "export $shlibpath_var"
      fi

      # Restore saved environment variables
      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
      do
	eval "if test \"\${save_$lt_var+set}\" = set; then
                $lt_var=\$save_$lt_var; export $lt_var
	      else
		$lt_unset $lt_var
	      fi"
      done

      # Now prepare to actually exec the command.
      exec_cmd="\$cmd$args"
    else
      # Display what would be done.
      if test -n "$shlibpath_var"; then
	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
	echo "export $shlibpath_var"
      fi
      $ECHO "$cmd$args"
      exit $EXIT_SUCCESS
    fi
}

test "$opt_mode" = execute && func_mode_execute ${1+"$@"}


# func_mode_finish arg...
func_mode_finish ()
{
    $opt_debug
    libs=
    libdirs=
    admincmds=

    for opt in "$nonopt" ${1+"$@"}
    do
      if test -d "$opt"; then
	func_append libdirs " $opt"

      elif test -f "$opt"; then
	if func_lalib_unsafe_p "$opt"; then
	  func_append libs " $opt"
	else
	  func_warning "\`$opt' is not a valid libtool archive"
	fi

      else
	func_fatal_error "invalid argument \`$opt'"
      fi
    done

    if test -n "$libs"; then
      if test -n "$lt_sysroot"; then
        sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
        sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
      else
        sysroot_cmd=
      fi

      # Remove sysroot references
      if $opt_dry_run; then
        for lib in $libs; do
          echo "removing references to $lt_sysroot and \`=' prefixes from $lib"
        done
      else
        tmpdir=`func_mktempdir`
        for lib in $libs; do
	  sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
	    > $tmpdir/tmp-la
	  mv -f $tmpdir/tmp-la $lib
	done
        ${RM}r "$tmpdir"
      fi
    fi

    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
      for libdir in $libdirs; do
	if test -n "$finish_cmds"; then
	  # Do each command in the finish commands.
	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
'"$cmd"'"'
	fi
	if test -n "$finish_eval"; then
	  # Do the single finish_eval.
	  eval cmds=\"$finish_eval\"
	  $opt_dry_run || eval "$cmds" || func_append admincmds "
       $cmds"
	fi
      done
    fi

    # Exit here if they wanted silent mode.
    $opt_silent && exit $EXIT_SUCCESS

    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
      echo "----------------------------------------------------------------------"
      echo "Libraries have been installed in:"
      for libdir in $libdirs; do
	$ECHO "   $libdir"
      done
      echo
      echo "If you ever happen to want to link against installed libraries"
      echo "in a given directory, LIBDIR, you must either use libtool, and"
      echo "specify the full pathname of the library, or use the \`-LLIBDIR'"
      echo "flag during linking and do at least one of the following:"
      if test -n "$shlibpath_var"; then
	echo "   - add LIBDIR to the \`$shlibpath_var' environment variable"
	echo "     during execution"
      fi
      if test -n "$runpath_var"; then
	echo "   - add LIBDIR to the \`$runpath_var' environment variable"
	echo "     during linking"
      fi
      if test -n "$hardcode_libdir_flag_spec"; then
	libdir=LIBDIR
	eval flag=\"$hardcode_libdir_flag_spec\"

	$ECHO "   - use the \`$flag' linker flag"
      fi
      if test -n "$admincmds"; then
	$ECHO "   - have your system administrator run these commands:$admincmds"
      fi
      if test -f /etc/ld.so.conf; then
	echo "   - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
      fi
      echo

      echo "See any operating system documentation about shared libraries for"
      case $host in
	solaris2.[6789]|solaris2.1[0-9])
	  echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
	  echo "pages."
	  ;;
	*)
	  echo "more information, such as the ld(1) and ld.so(8) manual pages."
	  ;;
      esac
      echo "----------------------------------------------------------------------"
    fi
    exit $EXIT_SUCCESS
}

test "$opt_mode" = finish && func_mode_finish ${1+"$@"}


# func_mode_install arg...
func_mode_install ()
{
    $opt_debug
    # There may be an optional sh(1) argument at the beginning of
    # install_prog (especially on Windows NT).
    if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
       # Allow the use of GNU shtool's install command.
       case $nonopt in *shtool*) :;; *) false;; esac; then
      # Aesthetically quote it.
      func_quote_for_eval "$nonopt"
      install_prog="$func_quote_for_eval_result "
      arg=$1
      shift
    else
      install_prog=
      arg=$nonopt
    fi

    # The real first argument should be the name of the installation program.
    # Aesthetically quote it.
    func_quote_for_eval "$arg"
    func_append install_prog "$func_quote_for_eval_result"
    install_shared_prog=$install_prog
    case " $install_prog " in
      *[\\\ /]cp\ *) install_cp=: ;;
      *) install_cp=false ;;
    esac

    # We need to accept at least all the BSD install flags.
    dest=
    files=
    opts=
    prev=
    install_type=
    isdir=no
    stripme=
    no_mode=:
    for arg
    do
      arg2=
      if test -n "$dest"; then
	func_append files " $dest"
	dest=$arg
	continue
      fi

      case $arg in
      -d) isdir=yes ;;
      -f)
	if $install_cp; then :; else
	  prev=$arg
	fi
	;;
      -g | -m | -o)
	prev=$arg
	;;
      -s)
	stripme=" -s"
	continue
	;;
      -*)
	;;
      *)
	# If the previous option needed an argument, then skip it.
	if test -n "$prev"; then
	  if test "x$prev" = x-m && test -n "$install_override_mode"; then
	    arg2=$install_override_mode
	    no_mode=false
	  fi
	  prev=
	else
	  dest=$arg
	  continue
	fi
	;;
      esac

      # Aesthetically quote the argument.
      func_quote_for_eval "$arg"
      func_append install_prog " $func_quote_for_eval_result"
      if test -n "$arg2"; then
	func_quote_for_eval "$arg2"
      fi
      func_append install_shared_prog " $func_quote_for_eval_result"
    done

    test -z "$install_prog" && \
      func_fatal_help "you must specify an install program"

    test -n "$prev" && \
      func_fatal_help "the \`$prev' option requires an argument"

    if test -n "$install_override_mode" && $no_mode; then
      if $install_cp; then :; else
	func_quote_for_eval "$install_override_mode"
	func_append install_shared_prog " -m $func_quote_for_eval_result"
      fi
    fi

    if test -z "$files"; then
      if test -z "$dest"; then
	func_fatal_help "no file or destination specified"
      else
	func_fatal_help "you must specify a destination"
      fi
    fi

    # Strip any trailing slash from the destination.
    func_stripname '' '/' "$dest"
    dest=$func_stripname_result

    # Check to see that the destination is a directory.
    test -d "$dest" && isdir=yes
    if test "$isdir" = yes; then
      destdir="$dest"
      destname=
    else
      func_dirname_and_basename "$dest" "" "."
      destdir="$func_dirname_result"
      destname="$func_basename_result"

      # Not a directory, so check to see that there is only one file specified.
      set dummy $files; shift
      test "$#" -gt 1 && \
	func_fatal_help "\`$dest' is not a directory"
    fi
    case $destdir in
    [\\/]* | [A-Za-z]:[\\/]*) ;;
    *)
      for file in $files; do
	case $file in
	*.lo) ;;
	*)
	  func_fatal_help "\`$destdir' must be an absolute directory name"
	  ;;
	esac
      done
      ;;
    esac

    # This variable tells wrapper scripts just to set variables rather
    # than running their programs.
    libtool_install_magic="$magic"

    staticlibs=
    future_libdirs=
    current_libdirs=
    for file in $files; do

      # Do each installation.
      case $file in
      *.$libext)
	# Do the static libraries later.
	func_append staticlibs " $file"
	;;

      *.la)
	func_resolve_sysroot "$file"
	file=$func_resolve_sysroot_result

	# Check to see that this really is a libtool archive.
	func_lalib_unsafe_p "$file" \
	  || func_fatal_help "\`$file' is not a valid libtool archive"

	library_names=
	old_library=
	relink_command=
	func_source "$file"

	# Add the libdir to current_libdirs if it is the destination.
	if test "X$destdir" = "X$libdir"; then
	  case "$current_libdirs " in
	  *" $libdir "*) ;;
	  *) func_append current_libdirs " $libdir" ;;
	  esac
	else
	  # Note the libdir as a future libdir.
	  case "$future_libdirs " in
	  *" $libdir "*) ;;
	  *) func_append future_libdirs " $libdir" ;;
	  esac
	fi

	func_dirname "$file" "/" ""
	dir="$func_dirname_result"
	func_append dir "$objdir"

	if test -n "$relink_command"; then
	  # Determine the prefix the user has applied to our future dir.
	  inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`

	  # Don't allow the user to place us outside of our expected
	  # location b/c this prevents finding dependent libraries that
	  # are installed to the same prefix.
	  # At present, this check doesn't affect windows .dll's that
	  # are installed into $libdir/../bin (currently, that works fine)
	  # but it's something to keep an eye on.
	  test "$inst_prefix_dir" = "$destdir" && \
	    func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"

	  if test -n "$inst_prefix_dir"; then
	    # Stick the inst_prefix_dir data into the link command.
	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
	  else
	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
	  fi

	  func_warning "relinking \`$file'"
	  func_show_eval "$relink_command" \
	    'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
	fi

	# See the names of the shared library.
	set dummy $library_names; shift
	if test -n "$1"; then
	  realname="$1"
	  shift

	  srcname="$realname"
	  test -n "$relink_command" && srcname="$realname"T

	  # Install the shared library and build the symlinks.
	  func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
	      'exit $?'
	  tstripme="$stripme"
	  case $host_os in
	  cygwin* | mingw* | pw32* | cegcc*)
	    case $realname in
	    *.dll.a)
	      tstripme=""
	      ;;
	    esac
	    ;;
	  esac
	  if test -n "$tstripme" && test -n "$striplib"; then
	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
	  fi

	  if test "$#" -gt 0; then
	    # Delete the old symlinks, and create new ones.
	    # Try `ln -sf' first, because the `ln' binary might depend on
	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
	    # so we also need to try rm && ln -s.
	    for linkname
	    do
	      test "$linkname" != "$realname" \
		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
	    done
	  fi

	  # Do each command in the postinstall commands.
	  lib="$destdir/$realname"
	  func_execute_cmds "$postinstall_cmds" 'exit $?'
	fi

	# Install the pseudo-library for information purposes.
	func_basename "$file"
	name="$func_basename_result"
	instname="$dir/$name"i
	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'

	# Maybe install the static library, too.
	test -n "$old_library" && func_append staticlibs " $dir/$old_library"
	;;

      *.lo)
	# Install (i.e. copy) a libtool object.

	# Figure out destination file name, if it wasn't already specified.
	if test -n "$destname"; then
	  destfile="$destdir/$destname"
	else
	  func_basename "$file"
	  destfile="$func_basename_result"
	  destfile="$destdir/$destfile"
	fi

	# Deduce the name of the destination old-style object file.
	case $destfile in
	*.lo)
	  func_lo2o "$destfile"
	  staticdest=$func_lo2o_result
	  ;;
	*.$objext)
	  staticdest="$destfile"
	  destfile=
	  ;;
	*)
	  func_fatal_help "cannot copy a libtool object to \`$destfile'"
	  ;;
	esac

	# Install the libtool object if requested.
	test -n "$destfile" && \
	  func_show_eval "$install_prog $file $destfile" 'exit $?'

	# Install the old object if enabled.
	if test "$build_old_libs" = yes; then
	  # Deduce the name of the old-style object file.
	  func_lo2o "$file"
	  staticobj=$func_lo2o_result
	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
	fi
	exit $EXIT_SUCCESS
	;;

      *)
	# Figure out destination file name, if it wasn't already specified.
	if test -n "$destname"; then
	  destfile="$destdir/$destname"
	else
	  func_basename "$file"
	  destfile="$func_basename_result"
	  destfile="$destdir/$destfile"
	fi

	# If the file is missing, and there is a .exe on the end, strip it
	# because it is most likely a libtool script we actually want to
	# install
	stripped_ext=""
	case $file in
	  *.exe)
	    if test ! -f "$file"; then
	      func_stripname '' '.exe' "$file"
	      file=$func_stripname_result
	      stripped_ext=".exe"
	    fi
	    ;;
	esac

	# Do a test to see if this is really a libtool program.
	case $host in
	*cygwin* | *mingw*)
	    if func_ltwrapper_executable_p "$file"; then
	      func_ltwrapper_scriptname "$file"
	      wrapper=$func_ltwrapper_scriptname_result
	    else
	      func_stripname '' '.exe' "$file"
	      wrapper=$func_stripname_result
	    fi
	    ;;
	*)
	    wrapper=$file
	    ;;
	esac
	if func_ltwrapper_script_p "$wrapper"; then
	  notinst_deplibs=
	  relink_command=

	  func_source "$wrapper"

	  # Check the variables that should have been set.
	  test -z "$generated_by_libtool_version" && \
	    func_fatal_error "invalid libtool wrapper script \`$wrapper'"

	  finalize=yes
	  for lib in $notinst_deplibs; do
	    # Check to see that each library is installed.
	    libdir=
	    if test -f "$lib"; then
	      func_source "$lib"
	    fi
	    libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test
	    if test -n "$libdir" && test ! -f "$libfile"; then
	      func_warning "\`$lib' has not been installed in \`$libdir'"
	      finalize=no
	    fi
	  done

	  relink_command=
	  func_source "$wrapper"

	  outputname=
	  if test "$fast_install" = no && test -n "$relink_command"; then
	    $opt_dry_run || {
	      if test "$finalize" = yes; then
	        tmpdir=`func_mktempdir`
		func_basename "$file$stripped_ext"
		file="$func_basename_result"
	        outputname="$tmpdir/$file"
	        # Replace the output file specification.
	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`

	        $opt_silent || {
	          func_quote_for_expand "$relink_command"
		  eval "func_echo $func_quote_for_expand_result"
	        }
	        if eval "$relink_command"; then :
	          else
		  func_error "error: relink \`$file' with the above command before installing it"
		  $opt_dry_run || ${RM}r "$tmpdir"
		  continue
	        fi
	        file="$outputname"
	      else
	        func_warning "cannot relink \`$file'"
	      fi
	    }
	  else
	    # Install the binary that we compiled earlier.
	    file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
	  fi
	fi

	# remove .exe since cygwin /usr/bin/install will append another
	# one anyway
	case $install_prog,$host in
	*/usr/bin/install*,*cygwin*)
	  case $file:$destfile in
	  *.exe:*.exe)
	    # this is ok
	    ;;
	  *.exe:*)
	    destfile=$destfile.exe
	    ;;
	  *:*.exe)
	    func_stripname '' '.exe' "$destfile"
	    destfile=$func_stripname_result
	    ;;
	  esac
	  ;;
	esac
	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
	$opt_dry_run || if test -n "$outputname"; then
	  ${RM}r "$tmpdir"
	fi
	;;
      esac
    done

    for file in $staticlibs; do
      func_basename "$file"
      name="$func_basename_result"

      # Set up the ranlib parameters.
      oldlib="$destdir/$name"
      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
      tool_oldlib=$func_to_tool_file_result

      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'

      if test -n "$stripme" && test -n "$old_striplib"; then
	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
      fi

      # Do each command in the postinstall commands.
      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
    done

    test -n "$future_libdirs" && \
      func_warning "remember to run \`$progname --finish$future_libdirs'"

    if test -n "$current_libdirs"; then
      # Maybe just do a dry run.
      $opt_dry_run && current_libdirs=" -n$current_libdirs"
      exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
    else
      exit $EXIT_SUCCESS
    fi
}

test "$opt_mode" = install && func_mode_install ${1+"$@"}


# func_generate_dlsyms outputname originator pic_p
# Extract symbols from dlprefiles and create ${outputname}S.o with
# a dlpreopen symbol table.
func_generate_dlsyms ()
{
    $opt_debug
    my_outputname="$1"
    my_originator="$2"
    my_pic_p="${3-no}"
    my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
    my_dlsyms=

    if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
      if test -n "$NM" && test -n "$global_symbol_pipe"; then
	my_dlsyms="${my_outputname}S.c"
      else
	func_error "not configured to extract global symbols from dlpreopened files"
      fi
    fi

    if test -n "$my_dlsyms"; then
      case $my_dlsyms in
      "") ;;
      *.c)
	# Discover the nlist of each of the dlfiles.
	nlist="$output_objdir/${my_outputname}.nm"

	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"

	# Parse the name list into a source file.
	func_verbose "creating $output_objdir/$my_dlsyms"

	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */

#ifdef __cplusplus
extern \"C\" {
#endif

#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
#endif

/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
/* DATA imports from DLLs on WIN32 con't be const, because runtime
   relocations are performed -- see ld's documentation on pseudo-relocs.  */
# define LT_DLSYM_CONST
#elif defined(__osf__)
/* This system does not cope well with relocations in const data.  */
# define LT_DLSYM_CONST
#else
# define LT_DLSYM_CONST const
#endif

/* External symbol declarations for the compiler. */\
"

	if test "$dlself" = yes; then
	  func_verbose "generating symbol list for \`$output'"

	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"

	  # Add our own program objects to the symbol list.
	  progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
	  for progfile in $progfiles; do
	    func_to_tool_file "$progfile" func_convert_file_msys_to_w32
	    func_verbose "extracting global C symbols from \`$func_to_tool_file_result'"
	    $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
	  done

	  if test -n "$exclude_expsyms"; then
	    $opt_dry_run || {
	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
	      eval '$MV "$nlist"T "$nlist"'
	    }
	  fi

	  if test -n "$export_symbols_regex"; then
	    $opt_dry_run || {
	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
	      eval '$MV "$nlist"T "$nlist"'
	    }
	  fi

	  # Prepare the list of exported symbols
	  if test -z "$export_symbols"; then
	    export_symbols="$output_objdir/$outputname.exp"
	    $opt_dry_run || {
	      $RM $export_symbols
	      eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
	      case $host in
	      *cygwin* | *mingw* | *cegcc* )
                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
	        ;;
	      esac
	    }
	  else
	    $opt_dry_run || {
	      eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
	      eval '$MV "$nlist"T "$nlist"'
	      case $host in
	        *cygwin* | *mingw* | *cegcc* )
	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
	          ;;
	      esac
	    }
	  fi
	fi

	for dlprefile in $dlprefiles; do
	  func_verbose "extracting global C symbols from \`$dlprefile'"
	  func_basename "$dlprefile"
	  name="$func_basename_result"
          case $host in
	    *cygwin* | *mingw* | *cegcc* )
	      # if an import library, we need to obtain dlname
	      if func_win32_import_lib_p "$dlprefile"; then
	        func_tr_sh "$dlprefile"
	        eval "curr_lafile=\$libfile_$func_tr_sh_result"
	        dlprefile_dlbasename=""
	        if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
	          # Use subshell, to avoid clobbering current variable values
	          dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
	          if test -n "$dlprefile_dlname" ; then
	            func_basename "$dlprefile_dlname"
	            dlprefile_dlbasename="$func_basename_result"
	          else
	            # no lafile. user explicitly requested -dlpreopen .
	            $sharedlib_from_linklib_cmd "$dlprefile"
	            dlprefile_dlbasename=$sharedlib_from_linklib_result
	          fi
	        fi
	        $opt_dry_run || {
	          if test -n "$dlprefile_dlbasename" ; then
	            eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
	          else
	            func_warning "Could not compute DLL name from $name"
	            eval '$ECHO ": $name " >> "$nlist"'
	          fi
	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
	            $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
	        }
	      else # not an import lib
	        $opt_dry_run || {
	          eval '$ECHO ": $name " >> "$nlist"'
	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
	        }
	      fi
	    ;;
	    *)
	      $opt_dry_run || {
	        eval '$ECHO ": $name " >> "$nlist"'
	        func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
	        eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
	      }
	    ;;
          esac
	done

	$opt_dry_run || {
	  # Make sure we have at least an empty file.
	  test -f "$nlist" || : > "$nlist"

	  if test -n "$exclude_expsyms"; then
	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
	    $MV "$nlist"T "$nlist"
	  fi

	  # Try sorting and uniquifying the output.
	  if $GREP -v "^: " < "$nlist" |
	      if sort -k 3 /dev/null 2>&1; then
		sort -k 3
	      else
		sort +2
	      fi |
	      uniq > "$nlist"S; then
	    :
	  else
	    $GREP -v "^: " < "$nlist" > "$nlist"S
	  fi

	  if test -f "$nlist"S; then
	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
	  else
	    echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
	  fi

	  echo >> "$output_objdir/$my_dlsyms" "\

/* The mapping between symbol names and symbols.  */
typedef struct {
  const char *name;
  void *address;
} lt_dlsymlist;
extern LT_DLSYM_CONST lt_dlsymlist
lt_${my_prefix}_LTX_preloaded_symbols[];
LT_DLSYM_CONST lt_dlsymlist
lt_${my_prefix}_LTX_preloaded_symbols[] =
{\
  { \"$my_originator\", (void *) 0 },"

	  case $need_lib_prefix in
	  no)
	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
	    ;;
	  *)
	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
	    ;;
	  esac
	  echo >> "$output_objdir/$my_dlsyms" "\
  {0, (void *) 0}
};

/* This works around a problem in FreeBSD linker */
#ifdef FREEBSD_WORKAROUND
static const void *lt_preloaded_setup() {
  return lt_${my_prefix}_LTX_preloaded_symbols;
}
#endif

#ifdef __cplusplus
}
#endif\
"
	} # !$opt_dry_run

	pic_flag_for_symtable=
	case "$compile_command " in
	*" -static "*) ;;
	*)
	  case $host in
	  # compiling the symbol table file with pic_flag works around
	  # a FreeBSD bug that causes programs to crash when -lm is
	  # linked before any other PIC object.  But we must not use
	  # pic_flag when linking with -static.  The problem exists in
	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
	  *-*-hpux*)
	    pic_flag_for_symtable=" $pic_flag"  ;;
	  *)
	    if test "X$my_pic_p" != Xno; then
	      pic_flag_for_symtable=" $pic_flag"
	    fi
	    ;;
	  esac
	  ;;
	esac
	symtab_cflags=
	for arg in $LTCFLAGS; do
	  case $arg in
	  -pie | -fpie | -fPIE) ;;
	  *) func_append symtab_cflags " $arg" ;;
	  esac
	done

	# Now compile the dynamic symbol file.
	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'

	# Clean up the generated files.
	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'

	# Transform the symbol file into the correct name.
	symfileobj="$output_objdir/${my_outputname}S.$objext"
	case $host in
	*cygwin* | *mingw* | *cegcc* )
	  if test -f "$output_objdir/$my_outputname.def"; then
	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
	  else
	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	  fi
	  ;;
	*)
	  compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	  finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	  ;;
	esac
	;;
      *)
	func_fatal_error "unknown suffix for \`$my_dlsyms'"
	;;
      esac
    else
      # We keep going just in case the user didn't refer to
      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
      # really was required.

      # Nullify the symbol file.
      compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
      finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
    fi
}

# func_win32_libid arg
# return the library type of file 'arg'
#
# Need a lot of goo to handle *both* DLLs and import libs
# Has to be a shell function in order to 'eat' the argument
# that is supplied when $file_magic_command is called.
# Despite the name, also deal with 64 bit binaries.
func_win32_libid ()
{
  $opt_debug
  win32_libid_type="unknown"
  win32_fileres=`file -L $1 2>/dev/null`
  case $win32_fileres in
  *ar\ archive\ import\ library*) # definitely import
    win32_libid_type="x86 archive import"
    ;;
  *ar\ archive*) # could be an import, or static
    # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
       $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
      func_to_tool_file "$1" func_convert_file_msys_to_w32
      win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
	$SED -n -e '
	    1,100{
		/ I /{
		    s,.*,import,
		    p
		    q
		}
	    }'`
      case $win32_nmres in
      import*)  win32_libid_type="x86 archive import";;
      *)        win32_libid_type="x86 archive static";;
      esac
    fi
    ;;
  *DLL*)
    win32_libid_type="x86 DLL"
    ;;
  *executable*) # but shell scripts are "executable" too...
    case $win32_fileres in
    *MS\ Windows\ PE\ Intel*)
      win32_libid_type="x86 DLL"
      ;;
    esac
    ;;
  esac
  $ECHO "$win32_libid_type"
}

# func_cygming_dll_for_implib ARG
#
# Platform-specific function to extract the
# name of the DLL associated with the specified
# import library ARG.
# Invoked by eval'ing the libtool variable
#    $sharedlib_from_linklib_cmd
# Result is available in the variable
#    $sharedlib_from_linklib_result
func_cygming_dll_for_implib ()
{
  $opt_debug
  sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
}

# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
#
# The is the core of a fallback implementation of a
# platform-specific function to extract the name of the
# DLL associated with the specified import library LIBNAME.
#
# SECTION_NAME is either .idata$6 or .idata$7, depending
# on the platform and compiler that created the implib.
#
# Echos the name of the DLL associated with the
# specified import library.
func_cygming_dll_for_implib_fallback_core ()
{
  $opt_debug
  match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
  $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
    $SED '/^Contents of section '"$match_literal"':/{
      # Place marker at beginning of archive member dllname section
      s/.*/====MARK====/
      p
      d
    }
    # These lines can sometimes be longer than 43 characters, but
    # are always uninteresting
    /:[	 ]*file format pe[i]\{,1\}-/d
    /^In archive [^:]*:/d
    # Ensure marker is printed
    /^====MARK====/p
    # Remove all lines with less than 43 characters
    /^.\{43\}/!d
    # From remaining lines, remove first 43 characters
    s/^.\{43\}//' |
    $SED -n '
      # Join marker and all lines until next marker into a single line
      /^====MARK====/ b para
      H
      $ b para
      b
      :para
      x
      s/\n//g
      # Remove the marker
      s/^====MARK====//
      # Remove trailing dots and whitespace
      s/[\. \t]*$//
      # Print
      /./p' |
    # we now have a list, one entry per line, of the stringified
    # contents of the appropriate section of all members of the
    # archive which possess that section. Heuristic: eliminate
    # all those which have a first or second character that is
    # a '.' (that is, objdump's representation of an unprintable
    # character.) This should work for all archives with less than
    # 0x302f exports -- but will fail for DLLs whose name actually
    # begins with a literal '.' or a single character followed by
    # a '.'.
    #
    # Of those that remain, print the first one.
    $SED -e '/^\./d;/^.\./d;q'
}

# func_cygming_gnu_implib_p ARG
# This predicate returns with zero status (TRUE) if
# ARG is a GNU/binutils-style import library. Returns
# with nonzero status (FALSE) otherwise.
func_cygming_gnu_implib_p ()
{
  $opt_debug
  func_to_tool_file "$1" func_convert_file_msys_to_w32
  func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
  test -n "$func_cygming_gnu_implib_tmp"
}

# func_cygming_ms_implib_p ARG
# This predicate returns with zero status (TRUE) if
# ARG is an MS-style import library. Returns
# with nonzero status (FALSE) otherwise.
func_cygming_ms_implib_p ()
{
  $opt_debug
  func_to_tool_file "$1" func_convert_file_msys_to_w32
  func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
  test -n "$func_cygming_ms_implib_tmp"
}

# func_cygming_dll_for_implib_fallback ARG
# Platform-specific function to extract the
# name of the DLL associated with the specified
# import library ARG.
#
# This fallback implementation is for use when $DLLTOOL
# does not support the --identify-strict option.
# Invoked by eval'ing the libtool variable
#    $sharedlib_from_linklib_cmd
# Result is available in the variable
#    $sharedlib_from_linklib_result
func_cygming_dll_for_implib_fallback ()
{
  $opt_debug
  if func_cygming_gnu_implib_p "$1" ; then
    # binutils import library
    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
  elif func_cygming_ms_implib_p "$1" ; then
    # ms-generated import library
    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
  else
    # unknown
    sharedlib_from_linklib_result=""
  fi
}


# func_extract_an_archive dir oldlib
func_extract_an_archive ()
{
    $opt_debug
    f_ex_an_ar_dir="$1"; shift
    f_ex_an_ar_oldlib="$1"
    if test "$lock_old_archive_extraction" = yes; then
      lockfile=$f_ex_an_ar_oldlib.lock
      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
	func_echo "Waiting for $lockfile to be removed"
	sleep 2
      done
    fi
    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
		   'stat=$?; rm -f "$lockfile"; exit $stat'
    if test "$lock_old_archive_extraction" = yes; then
      $opt_dry_run || rm -f "$lockfile"
    fi
    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
     :
    else
      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
    fi
}


# func_extract_archives gentop oldlib ...
func_extract_archives ()
{
    $opt_debug
    my_gentop="$1"; shift
    my_oldlibs=${1+"$@"}
    my_oldobjs=""
    my_xlib=""
    my_xabs=""
    my_xdir=""

    for my_xlib in $my_oldlibs; do
      # Extract the objects.
      case $my_xlib in
	[\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
	*) my_xabs=`pwd`"/$my_xlib" ;;
      esac
      func_basename "$my_xlib"
      my_xlib="$func_basename_result"
      my_xlib_u=$my_xlib
      while :; do
        case " $extracted_archives " in
	*" $my_xlib_u "*)
	  func_arith $extracted_serial + 1
	  extracted_serial=$func_arith_result
	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
	*) break ;;
	esac
      done
      extracted_archives="$extracted_archives $my_xlib_u"
      my_xdir="$my_gentop/$my_xlib_u"

      func_mkdir_p "$my_xdir"

      case $host in
      *-darwin*)
	func_verbose "Extracting $my_xabs"
	# Do not bother doing anything if just a dry run
	$opt_dry_run || {
	  darwin_orig_dir=`pwd`
	  cd $my_xdir || exit $?
	  darwin_archive=$my_xabs
	  darwin_curdir=`pwd`
	  darwin_base_archive=`basename "$darwin_archive"`
	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
	  if test -n "$darwin_arches"; then
	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
	    darwin_arch=
	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
	    for darwin_arch in  $darwin_arches ; do
	      func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
	      $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
	      cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
	      func_extract_an_archive "`pwd`" "${darwin_base_archive}"
	      cd "$darwin_curdir"
	      $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
	    done # $darwin_arches
            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
	    darwin_file=
	    darwin_files=
	    for darwin_file in $darwin_filelist; do
	      darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
	      $LIPO -create -output "$darwin_file" $darwin_files
	    done # $darwin_filelist
	    $RM -rf unfat-$$
	    cd "$darwin_orig_dir"
	  else
	    cd $darwin_orig_dir
	    func_extract_an_archive "$my_xdir" "$my_xabs"
	  fi # $darwin_arches
	} # !$opt_dry_run
	;;
      *)
        func_extract_an_archive "$my_xdir" "$my_xabs"
	;;
      esac
      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
    done

    func_extract_archives_result="$my_oldobjs"
}


# func_emit_wrapper [arg=no]
#
# Emit a libtool wrapper script on stdout.
# Don't directly open a file because we may want to
# incorporate the script contents within a cygwin/mingw
# wrapper executable.  Must ONLY be called from within
# func_mode_link because it depends on a number of variables
# set therein.
#
# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
# variable will take.  If 'yes', then the emitted script
# will assume that the directory in which it is stored is
# the $objdir directory.  This is a cygwin/mingw-specific
# behavior.
func_emit_wrapper ()
{
	func_emit_wrapper_arg1=${1-no}

	$ECHO "\
#! $SHELL

# $output - temporary wrapper script for $objdir/$outputname
# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
#
# The $output program cannot be directly executed until all the libtool
# libraries that it depends on are installed.
#
# This wrapper script should never be moved out of the build directory.
# If it is, it will not operate correctly.

# Sed substitution that helps us do robust quoting.  It backslashifies
# metacharacters that are still active within double-quoted strings.
sed_quote_subst='$sed_quote_subst'

# Be Bourne compatible
if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '\${1+\"\$@\"}'='\"\$@\"'
  setopt NO_GLOB_SUBST
else
  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
fi
BIN_SH=xpg4; export BIN_SH # for Tru64
DUALCASE=1; export DUALCASE # for MKS sh

# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

relink_command=\"$relink_command\"

# This environment variable determines our operation mode.
if test \"\$libtool_install_magic\" = \"$magic\"; then
  # install mode needs the following variables:
  generated_by_libtool_version='$macro_version'
  notinst_deplibs='$notinst_deplibs'
else
  # When we are sourced in execute mode, \$file and \$ECHO are already set.
  if test \"\$libtool_execute_magic\" != \"$magic\"; then
    file=\"\$0\""

    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
    $ECHO "\

# A function that is used when there is no print builtin or printf.
func_fallback_echo ()
{
  eval 'cat <<_LTECHO_EOF
\$1
_LTECHO_EOF'
}
    ECHO=\"$qECHO\"
  fi

# Very basic option parsing. These options are (a) specific to
# the libtool wrapper, (b) are identical between the wrapper
# /script/ and the wrapper /executable/ which is used only on
# windows platforms, and (c) all begin with the string "--lt-"
# (application programs are unlikely to have options which match
# this pattern).
#
# There are only two supported options: --lt-debug and
# --lt-dump-script. There is, deliberately, no --lt-help.
#
# The first argument to this parsing function should be the
# script's $0 value, followed by "$@".
lt_option_debug=
func_parse_lt_options ()
{
  lt_script_arg0=\$0
  shift
  for lt_opt
  do
    case \"\$lt_opt\" in
    --lt-debug) lt_option_debug=1 ;;
    --lt-dump-script)
        lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
        test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
        lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
        cat \"\$lt_dump_D/\$lt_dump_F\"
        exit 0
      ;;
    --lt-*)
        \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
        exit 1
      ;;
    esac
  done

  # Print the debug banner immediately:
  if test -n \"\$lt_option_debug\"; then
    echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2
  fi
}

# Used when --lt-debug. Prints its arguments to stdout
# (redirection is the responsibility of the caller)
func_lt_dump_args ()
{
  lt_dump_args_N=1;
  for lt_arg
  do
    \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\"
    lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
  done
}

# Core function for launching the target application
func_exec_program_core ()
{
"
  case $host in
  # Backslashes separate directories on plain windows
  *-*-mingw | *-*-os2* | *-cegcc*)
    $ECHO "\
      if test -n \"\$lt_option_debug\"; then
        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2
        func_lt_dump_args \${1+\"\$@\"} 1>&2
      fi
      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
"
    ;;

  *)
    $ECHO "\
      if test -n \"\$lt_option_debug\"; then
        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2
        func_lt_dump_args \${1+\"\$@\"} 1>&2
      fi
      exec \"\$progdir/\$program\" \${1+\"\$@\"}
"
    ;;
  esac
  $ECHO "\
      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
      exit 1
}

# A function to encapsulate launching the target application
# Strips options in the --lt-* namespace from \$@ and
# launches target application with the remaining arguments.
func_exec_program ()
{
  case \" \$* \" in
  *\\ --lt-*)
    for lt_wr_arg
    do
      case \$lt_wr_arg in
      --lt-*) ;;
      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
      esac
      shift
    done ;;
  esac
  func_exec_program_core \${1+\"\$@\"}
}

  # Parse options
  func_parse_lt_options \"\$0\" \${1+\"\$@\"}

  # Find the directory that this script lives in.
  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
  test \"x\$thisdir\" = \"x\$file\" && thisdir=.

  # Follow symbolic links until we get to the real thisdir.
  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
  while test -n \"\$file\"; do
    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`

    # If there was a directory component, then change thisdir.
    if test \"x\$destdir\" != \"x\$file\"; then
      case \"\$destdir\" in
      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
      *) thisdir=\"\$thisdir/\$destdir\" ;;
      esac
    fi

    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
  done

  # Usually 'no', except on cygwin/mingw when embedded into
  # the cwrapper.
  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
    # special case for '.'
    if test \"\$thisdir\" = \".\"; then
      thisdir=\`pwd\`
    fi
    # remove .libs from thisdir
    case \"\$thisdir\" in
    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
    $objdir )   thisdir=. ;;
    esac
  fi

  # Try to get the absolute directory name.
  absdir=\`cd \"\$thisdir\" && pwd\`
  test -n \"\$absdir\" && thisdir=\"\$absdir\"
"

	if test "$fast_install" = yes; then
	  $ECHO "\
  program=lt-'$outputname'$exeext
  progdir=\"\$thisdir/$objdir\"

  if test ! -f \"\$progdir/\$program\" ||
     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
       test \"X\$file\" != \"X\$progdir/\$program\"; }; then

    file=\"\$\$-\$program\"

    if test ! -d \"\$progdir\"; then
      $MKDIR \"\$progdir\"
    else
      $RM \"\$progdir/\$file\"
    fi"

	  $ECHO "\

    # relink executable if necessary
    if test -n \"\$relink_command\"; then
      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
      else
	$ECHO \"\$relink_command_output\" >&2
	$RM \"\$progdir/\$file\"
	exit 1
      fi
    fi

    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
    { $RM \"\$progdir/\$program\";
      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
    $RM \"\$progdir/\$file\"
  fi"
	else
	  $ECHO "\
  program='$outputname'
  progdir=\"\$thisdir/$objdir\"
"
	fi

	$ECHO "\

  if test -f \"\$progdir/\$program\"; then"

	# fixup the dll searchpath if we need to.
	#
	# Fix the DLL searchpath if we need to.  Do this before prepending
	# to shlibpath, because on Windows, both are PATH and uninstalled
	# libraries must come first.
	if test -n "$dllsearchpath"; then
	  $ECHO "\
    # Add the dll search path components to the executable PATH
    PATH=$dllsearchpath:\$PATH
"
	fi

	# Export our shlibpath_var if we have one.
	if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
	  $ECHO "\
    # Add our own library path to $shlibpath_var
    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"

    # Some systems cannot cope with colon-terminated $shlibpath_var
    # The second colon is a workaround for a bug in BeOS R4 sed
    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`

    export $shlibpath_var
"
	fi

	$ECHO "\
    if test \"\$libtool_execute_magic\" != \"$magic\"; then
      # Run the actual program with our arguments.
      func_exec_program \${1+\"\$@\"}
    fi
  else
    # The program doesn't exist.
    \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
    exit 1
  fi
fi\
"
}


# func_emit_cwrapperexe_src
# emit the source code for a wrapper executable on stdout
# Must ONLY be called from within func_mode_link because
# it depends on a number of variable set therein.
func_emit_cwrapperexe_src ()
{
	cat <
#include 
#ifdef _MSC_VER
# include 
# include 
# include 
#else
# include 
# include 
# ifdef __CYGWIN__
#  include 
# endif
#endif
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

/* declarations of non-ANSI functions */
#if defined(__MINGW32__)
# ifdef __STRICT_ANSI__
int _putenv (const char *);
# endif
#elif defined(__CYGWIN__)
# ifdef __STRICT_ANSI__
char *realpath (const char *, char *);
int putenv (char *);
int setenv (const char *, const char *, int);
# endif
/* #elif defined (other platforms) ... */
#endif

/* portability defines, excluding path handling macros */
#if defined(_MSC_VER)
# define setmode _setmode
# define stat    _stat
# define chmod   _chmod
# define getcwd  _getcwd
# define putenv  _putenv
# define S_IXUSR _S_IEXEC
# ifndef _INTPTR_T_DEFINED
#  define _INTPTR_T_DEFINED
#  define intptr_t int
# endif
#elif defined(__MINGW32__)
# define setmode _setmode
# define stat    _stat
# define chmod   _chmod
# define getcwd  _getcwd
# define putenv  _putenv
#elif defined(__CYGWIN__)
# define HAVE_SETENV
# define FOPEN_WB "wb"
/* #elif defined (other platforms) ... */
#endif

#if defined(PATH_MAX)
# define LT_PATHMAX PATH_MAX
#elif defined(MAXPATHLEN)
# define LT_PATHMAX MAXPATHLEN
#else
# define LT_PATHMAX 1024
#endif

#ifndef S_IXOTH
# define S_IXOTH 0
#endif
#ifndef S_IXGRP
# define S_IXGRP 0
#endif

/* path handling portability macros */
#ifndef DIR_SEPARATOR
# define DIR_SEPARATOR '/'
# define PATH_SEPARATOR ':'
#endif

#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
  defined (__OS2__)
# define HAVE_DOS_BASED_FILE_SYSTEM
# define FOPEN_WB "wb"
# ifndef DIR_SEPARATOR_2
#  define DIR_SEPARATOR_2 '\\'
# endif
# ifndef PATH_SEPARATOR_2
#  define PATH_SEPARATOR_2 ';'
# endif
#endif

#ifndef DIR_SEPARATOR_2
# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
#else /* DIR_SEPARATOR_2 */
# define IS_DIR_SEPARATOR(ch) \
	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
#endif /* DIR_SEPARATOR_2 */

#ifndef PATH_SEPARATOR_2
# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
#else /* PATH_SEPARATOR_2 */
# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
#endif /* PATH_SEPARATOR_2 */

#ifndef FOPEN_WB
# define FOPEN_WB "w"
#endif
#ifndef _O_BINARY
# define _O_BINARY 0
#endif

#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
#define XFREE(stale) do { \
  if (stale) { free ((void *) stale); stale = 0; } \
} while (0)

#if defined(LT_DEBUGWRAPPER)
static int lt_debug = 1;
#else
static int lt_debug = 0;
#endif

const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */

void *xmalloc (size_t num);
char *xstrdup (const char *string);
const char *base_name (const char *name);
char *find_executable (const char *wrapper);
char *chase_symlinks (const char *pathspec);
int make_executable (const char *path);
int check_executable (const char *path);
char *strendzap (char *str, const char *pat);
void lt_debugprintf (const char *file, int line, const char *fmt, ...);
void lt_fatal (const char *file, int line, const char *message, ...);
static const char *nonnull (const char *s);
static const char *nonempty (const char *s);
void lt_setenv (const char *name, const char *value);
char *lt_extend_str (const char *orig_value, const char *add, int to_end);
void lt_update_exe_path (const char *name, const char *value);
void lt_update_lib_path (const char *name, const char *value);
char **prepare_spawn (char **argv);
void lt_dump_script (FILE *f);
EOF

	    cat <= 0)
      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
    return 1;
  else
    return 0;
}

int
make_executable (const char *path)
{
  int rval = 0;
  struct stat st;

  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
                  nonempty (path));
  if ((!path) || (!*path))
    return 0;

  if (stat (path, &st) >= 0)
    {
      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
    }
  return rval;
}

/* Searches for the full path of the wrapper.  Returns
   newly allocated full path name if found, NULL otherwise
   Does not chase symlinks, even on platforms that support them.
*/
char *
find_executable (const char *wrapper)
{
  int has_slash = 0;
  const char *p;
  const char *p_next;
  /* static buffer for getcwd */
  char tmp[LT_PATHMAX + 1];
  int tmp_len;
  char *concat_name;

  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
                  nonempty (wrapper));

  if ((wrapper == NULL) || (*wrapper == '\0'))
    return NULL;

  /* Absolute path? */
#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
    {
      concat_name = xstrdup (wrapper);
      if (check_executable (concat_name))
	return concat_name;
      XFREE (concat_name);
    }
  else
    {
#endif
      if (IS_DIR_SEPARATOR (wrapper[0]))
	{
	  concat_name = xstrdup (wrapper);
	  if (check_executable (concat_name))
	    return concat_name;
	  XFREE (concat_name);
	}
#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
    }
#endif

  for (p = wrapper; *p; p++)
    if (*p == '/')
      {
	has_slash = 1;
	break;
      }
  if (!has_slash)
    {
      /* no slashes; search PATH */
      const char *path = getenv ("PATH");
      if (path != NULL)
	{
	  for (p = path; *p; p = p_next)
	    {
	      const char *q;
	      size_t p_len;
	      for (q = p; *q; q++)
		if (IS_PATH_SEPARATOR (*q))
		  break;
	      p_len = q - p;
	      p_next = (*q == '\0' ? q : q + 1);
	      if (p_len == 0)
		{
		  /* empty path: current directory */
		  if (getcwd (tmp, LT_PATHMAX) == NULL)
		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
                              nonnull (strerror (errno)));
		  tmp_len = strlen (tmp);
		  concat_name =
		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
		  memcpy (concat_name, tmp, tmp_len);
		  concat_name[tmp_len] = '/';
		  strcpy (concat_name + tmp_len + 1, wrapper);
		}
	      else
		{
		  concat_name =
		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
		  memcpy (concat_name, p, p_len);
		  concat_name[p_len] = '/';
		  strcpy (concat_name + p_len + 1, wrapper);
		}
	      if (check_executable (concat_name))
		return concat_name;
	      XFREE (concat_name);
	    }
	}
      /* not found in PATH; assume curdir */
    }
  /* Relative path | not found in path: prepend cwd */
  if (getcwd (tmp, LT_PATHMAX) == NULL)
    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
              nonnull (strerror (errno)));
  tmp_len = strlen (tmp);
  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
  memcpy (concat_name, tmp, tmp_len);
  concat_name[tmp_len] = '/';
  strcpy (concat_name + tmp_len + 1, wrapper);

  if (check_executable (concat_name))
    return concat_name;
  XFREE (concat_name);
  return NULL;
}

char *
chase_symlinks (const char *pathspec)
{
#ifndef S_ISLNK
  return xstrdup (pathspec);
#else
  char buf[LT_PATHMAX];
  struct stat s;
  char *tmp_pathspec = xstrdup (pathspec);
  char *p;
  int has_symlinks = 0;
  while (strlen (tmp_pathspec) && !has_symlinks)
    {
      lt_debugprintf (__FILE__, __LINE__,
		      "checking path component for symlinks: %s\n",
		      tmp_pathspec);
      if (lstat (tmp_pathspec, &s) == 0)
	{
	  if (S_ISLNK (s.st_mode) != 0)
	    {
	      has_symlinks = 1;
	      break;
	    }

	  /* search backwards for last DIR_SEPARATOR */
	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
	    p--;
	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
	    {
	      /* no more DIR_SEPARATORS left */
	      break;
	    }
	  *p = '\0';
	}
      else
	{
	  lt_fatal (__FILE__, __LINE__,
		    "error accessing file \"%s\": %s",
		    tmp_pathspec, nonnull (strerror (errno)));
	}
    }
  XFREE (tmp_pathspec);

  if (!has_symlinks)
    {
      return xstrdup (pathspec);
    }

  tmp_pathspec = realpath (pathspec, buf);
  if (tmp_pathspec == 0)
    {
      lt_fatal (__FILE__, __LINE__,
		"could not follow symlinks for %s", pathspec);
    }
  return xstrdup (tmp_pathspec);
#endif
}

char *
strendzap (char *str, const char *pat)
{
  size_t len, patlen;

  assert (str != NULL);
  assert (pat != NULL);

  len = strlen (str);
  patlen = strlen (pat);

  if (patlen <= len)
    {
      str += len - patlen;
      if (strcmp (str, pat) == 0)
	*str = '\0';
    }
  return str;
}

void
lt_debugprintf (const char *file, int line, const char *fmt, ...)
{
  va_list args;
  if (lt_debug)
    {
      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
      va_start (args, fmt);
      (void) vfprintf (stderr, fmt, args);
      va_end (args);
    }
}

static void
lt_error_core (int exit_status, const char *file,
	       int line, const char *mode,
	       const char *message, va_list ap)
{
  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
  vfprintf (stderr, message, ap);
  fprintf (stderr, ".\n");

  if (exit_status >= 0)
    exit (exit_status);
}

void
lt_fatal (const char *file, int line, const char *message, ...)
{
  va_list ap;
  va_start (ap, message);
  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
  va_end (ap);
}

static const char *
nonnull (const char *s)
{
  return s ? s : "(null)";
}

static const char *
nonempty (const char *s)
{
  return (s && !*s) ? "(empty)" : nonnull (s);
}

void
lt_setenv (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_setenv) setting '%s' to '%s'\n",
                  nonnull (name), nonnull (value));
  {
#ifdef HAVE_SETENV
    /* always make a copy, for consistency with !HAVE_SETENV */
    char *str = xstrdup (value);
    setenv (name, str, 1);
#else
    int len = strlen (name) + 1 + strlen (value) + 1;
    char *str = XMALLOC (char, len);
    sprintf (str, "%s=%s", name, value);
    if (putenv (str) != EXIT_SUCCESS)
      {
        XFREE (str);
      }
#endif
  }
}

char *
lt_extend_str (const char *orig_value, const char *add, int to_end)
{
  char *new_value;
  if (orig_value && *orig_value)
    {
      int orig_value_len = strlen (orig_value);
      int add_len = strlen (add);
      new_value = XMALLOC (char, add_len + orig_value_len + 1);
      if (to_end)
        {
          strcpy (new_value, orig_value);
          strcpy (new_value + orig_value_len, add);
        }
      else
        {
          strcpy (new_value, add);
          strcpy (new_value + add_len, orig_value);
        }
    }
  else
    {
      new_value = xstrdup (add);
    }
  return new_value;
}

void
lt_update_exe_path (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
                  nonnull (name), nonnull (value));

  if (name && *name && value && *value)
    {
      char *new_value = lt_extend_str (getenv (name), value, 0);
      /* some systems can't cope with a ':'-terminated path #' */
      int len = strlen (new_value);
      while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
        {
          new_value[len-1] = '\0';
        }
      lt_setenv (name, new_value);
      XFREE (new_value);
    }
}

void
lt_update_lib_path (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
                  nonnull (name), nonnull (value));

  if (name && *name && value && *value)
    {
      char *new_value = lt_extend_str (getenv (name), value, 0);
      lt_setenv (name, new_value);
      XFREE (new_value);
    }
}

EOF
	    case $host_os in
	      mingw*)
		cat <<"EOF"

/* Prepares an argument vector before calling spawn().
   Note that spawn() does not by itself call the command interpreter
     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
         GetVersionEx(&v);
         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
      }) ? "cmd.exe" : "command.com").
   Instead it simply concatenates the arguments, separated by ' ', and calls
   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
   special way:
   - Space and tab are interpreted as delimiters. They are not treated as
     delimiters if they are surrounded by double quotes: "...".
   - Unescaped double quotes are removed from the input. Their only effect is
     that within double quotes, space and tab are treated like normal
     characters.
   - Backslashes not followed by double quotes are not special.
   - But 2*n+1 backslashes followed by a double quote become
     n backslashes followed by a double quote (n >= 0):
       \" -> "
       \\\" -> \"
       \\\\\" -> \\"
 */
#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
char **
prepare_spawn (char **argv)
{
  size_t argc;
  char **new_argv;
  size_t i;

  /* Count number of arguments.  */
  for (argc = 0; argv[argc] != NULL; argc++)
    ;

  /* Allocate new argument vector.  */
  new_argv = XMALLOC (char *, argc + 1);

  /* Put quoted arguments into the new argument vector.  */
  for (i = 0; i < argc; i++)
    {
      const char *string = argv[i];

      if (string[0] == '\0')
	new_argv[i] = xstrdup ("\"\"");
      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
	{
	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
	  size_t length;
	  unsigned int backslashes;
	  const char *s;
	  char *quoted_string;
	  char *p;

	  length = 0;
	  backslashes = 0;
	  if (quote_around)
	    length++;
	  for (s = string; *s != '\0'; s++)
	    {
	      char c = *s;
	      if (c == '"')
		length += backslashes + 1;
	      length++;
	      if (c == '\\')
		backslashes++;
	      else
		backslashes = 0;
	    }
	  if (quote_around)
	    length += backslashes + 1;

	  quoted_string = XMALLOC (char, length + 1);

	  p = quoted_string;
	  backslashes = 0;
	  if (quote_around)
	    *p++ = '"';
	  for (s = string; *s != '\0'; s++)
	    {
	      char c = *s;
	      if (c == '"')
		{
		  unsigned int j;
		  for (j = backslashes + 1; j > 0; j--)
		    *p++ = '\\';
		}
	      *p++ = c;
	      if (c == '\\')
		backslashes++;
	      else
		backslashes = 0;
	    }
	  if (quote_around)
	    {
	      unsigned int j;
	      for (j = backslashes; j > 0; j--)
		*p++ = '\\';
	      *p++ = '"';
	    }
	  *p = '\0';

	  new_argv[i] = quoted_string;
	}
      else
	new_argv[i] = (char *) string;
    }
  new_argv[argc] = NULL;

  return new_argv;
}
EOF
		;;
	    esac

            cat <<"EOF"
void lt_dump_script (FILE* f)
{
EOF
	    func_emit_wrapper yes |
	      $SED -n -e '
s/^\(.\{79\}\)\(..*\)/\1\
\2/
h
s/\([\\"]\)/\\\1/g
s/$/\\n/
s/\([^\n]*\).*/  fputs ("\1", f);/p
g
D'
            cat <<"EOF"
}
EOF
}
# end: func_emit_cwrapperexe_src

# func_win32_import_lib_p ARG
# True if ARG is an import lib, as indicated by $file_magic_cmd
func_win32_import_lib_p ()
{
    $opt_debug
    case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
    *import*) : ;;
    *) false ;;
    esac
}

# func_mode_link arg...
func_mode_link ()
{
    $opt_debug
    case $host in
    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
      # It is impossible to link a dll without this setting, and
      # we shouldn't force the makefile maintainer to figure out
      # which system we are compiling for in order to pass an extra
      # flag for every libtool invocation.
      # allow_undefined=no

      # FIXME: Unfortunately, there are problems with the above when trying
      # to make a dll which has undefined symbols, in which case not
      # even a static library is built.  For now, we need to specify
      # -no-undefined on the libtool link line when we can be certain
      # that all symbols are satisfied, otherwise we get a static library.
      allow_undefined=yes
      ;;
    *)
      allow_undefined=yes
      ;;
    esac
    libtool_args=$nonopt
    base_compile="$nonopt $@"
    compile_command=$nonopt
    finalize_command=$nonopt

    compile_rpath=
    finalize_rpath=
    compile_shlibpath=
    finalize_shlibpath=
    convenience=
    old_convenience=
    deplibs=
    old_deplibs=
    compiler_flags=
    linker_flags=
    dllsearchpath=
    lib_search_path=`pwd`
    inst_prefix_dir=
    new_inherited_linker_flags=

    avoid_version=no
    bindir=
    dlfiles=
    dlprefiles=
    dlself=no
    export_dynamic=no
    export_symbols=
    export_symbols_regex=
    generated=
    libobjs=
    ltlibs=
    module=no
    no_install=no
    objs=
    non_pic_objects=
    precious_files_regex=
    prefer_static_libs=no
    preload=no
    prev=
    prevarg=
    release=
    rpath=
    xrpath=
    perm_rpath=
    temp_rpath=
    thread_safe=no
    vinfo=
    vinfo_number=no
    weak_libs=
    single_module="${wl}-single_module"
    func_infer_tag $base_compile

    # We need to know -static, to get the right output filenames.
    for arg
    do
      case $arg in
      -shared)
	test "$build_libtool_libs" != yes && \
	  func_fatal_configuration "can not build a shared library"
	build_old_libs=no
	break
	;;
      -all-static | -static | -static-libtool-libs)
	case $arg in
	-all-static)
	  if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
	    func_warning "complete static linking is impossible in this configuration"
	  fi
	  if test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	  prefer_static_libs=yes
	  ;;
	-static)
	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	  prefer_static_libs=built
	  ;;
	-static-libtool-libs)
	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	  prefer_static_libs=yes
	  ;;
	esac
	build_libtool_libs=no
	build_old_libs=yes
	break
	;;
      esac
    done

    # See if our shared archives depend on static archives.
    test -n "$old_archive_from_new_cmds" && build_old_libs=yes

    # Go through the arguments, transforming them on the way.
    while test "$#" -gt 0; do
      arg="$1"
      shift
      func_quote_for_eval "$arg"
      qarg=$func_quote_for_eval_unquoted_result
      func_append libtool_args " $func_quote_for_eval_result"

      # If the previous option needs an argument, assign it.
      if test -n "$prev"; then
	case $prev in
	output)
	  func_append compile_command " @OUTPUT@"
	  func_append finalize_command " @OUTPUT@"
	  ;;
	esac

	case $prev in
	bindir)
	  bindir="$arg"
	  prev=
	  continue
	  ;;
	dlfiles|dlprefiles)
	  if test "$preload" = no; then
	    # Add the symbol object into the linking commands.
	    func_append compile_command " @SYMFILE@"
	    func_append finalize_command " @SYMFILE@"
	    preload=yes
	  fi
	  case $arg in
	  *.la | *.lo) ;;  # We handle these cases below.
	  force)
	    if test "$dlself" = no; then
	      dlself=needless
	      export_dynamic=yes
	    fi
	    prev=
	    continue
	    ;;
	  self)
	    if test "$prev" = dlprefiles; then
	      dlself=yes
	    elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
	      dlself=yes
	    else
	      dlself=needless
	      export_dynamic=yes
	    fi
	    prev=
	    continue
	    ;;
	  *)
	    if test "$prev" = dlfiles; then
	      func_append dlfiles " $arg"
	    else
	      func_append dlprefiles " $arg"
	    fi
	    prev=
	    continue
	    ;;
	  esac
	  ;;
	expsyms)
	  export_symbols="$arg"
	  test -f "$arg" \
	    || func_fatal_error "symbol file \`$arg' does not exist"
	  prev=
	  continue
	  ;;
	expsyms_regex)
	  export_symbols_regex="$arg"
	  prev=
	  continue
	  ;;
	framework)
	  case $host in
	    *-*-darwin*)
	      case "$deplibs " in
		*" $qarg.ltframework "*) ;;
		*) func_append deplibs " $qarg.ltframework" # this is fixed later
		   ;;
	      esac
	      ;;
	  esac
	  prev=
	  continue
	  ;;
	inst_prefix)
	  inst_prefix_dir="$arg"
	  prev=
	  continue
	  ;;
	objectlist)
	  if test -f "$arg"; then
	    save_arg=$arg
	    moreargs=
	    for fil in `cat "$save_arg"`
	    do
#	      func_append moreargs " $fil"
	      arg=$fil
	      # A libtool-controlled object.

	      # Check to see that this really is a libtool object.
	      if func_lalib_unsafe_p "$arg"; then
		pic_object=
		non_pic_object=

		# Read the .lo file
		func_source "$arg"

		if test -z "$pic_object" ||
		   test -z "$non_pic_object" ||
		   test "$pic_object" = none &&
		   test "$non_pic_object" = none; then
		  func_fatal_error "cannot find name of object for \`$arg'"
		fi

		# Extract subdirectory from the argument.
		func_dirname "$arg" "/" ""
		xdir="$func_dirname_result"

		if test "$pic_object" != none; then
		  # Prepend the subdirectory the object is found in.
		  pic_object="$xdir$pic_object"

		  if test "$prev" = dlfiles; then
		    if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
		      func_append dlfiles " $pic_object"
		      prev=
		      continue
		    else
		      # If libtool objects are unsupported, then we need to preload.
		      prev=dlprefiles
		    fi
		  fi

		  # CHECK ME:  I think I busted this.  -Ossama
		  if test "$prev" = dlprefiles; then
		    # Preload the old-style object.
		    func_append dlprefiles " $pic_object"
		    prev=
		  fi

		  # A PIC object.
		  func_append libobjs " $pic_object"
		  arg="$pic_object"
		fi

		# Non-PIC object.
		if test "$non_pic_object" != none; then
		  # Prepend the subdirectory the object is found in.
		  non_pic_object="$xdir$non_pic_object"

		  # A standard non-PIC object
		  func_append non_pic_objects " $non_pic_object"
		  if test -z "$pic_object" || test "$pic_object" = none ; then
		    arg="$non_pic_object"
		  fi
		else
		  # If the PIC object exists, use it instead.
		  # $xdir was prepended to $pic_object above.
		  non_pic_object="$pic_object"
		  func_append non_pic_objects " $non_pic_object"
		fi
	      else
		# Only an error if not doing a dry-run.
		if $opt_dry_run; then
		  # Extract subdirectory from the argument.
		  func_dirname "$arg" "/" ""
		  xdir="$func_dirname_result"

		  func_lo2o "$arg"
		  pic_object=$xdir$objdir/$func_lo2o_result
		  non_pic_object=$xdir$func_lo2o_result
		  func_append libobjs " $pic_object"
		  func_append non_pic_objects " $non_pic_object"
	        else
		  func_fatal_error "\`$arg' is not a valid libtool object"
		fi
	      fi
	    done
	  else
	    func_fatal_error "link input file \`$arg' does not exist"
	  fi
	  arg=$save_arg
	  prev=
	  continue
	  ;;
	precious_regex)
	  precious_files_regex="$arg"
	  prev=
	  continue
	  ;;
	release)
	  release="-$arg"
	  prev=
	  continue
	  ;;
	rpath | xrpath)
	  # We need an absolute path.
	  case $arg in
	  [\\/]* | [A-Za-z]:[\\/]*) ;;
	  *)
	    func_fatal_error "only absolute run-paths are allowed"
	    ;;
	  esac
	  if test "$prev" = rpath; then
	    case "$rpath " in
	    *" $arg "*) ;;
	    *) func_append rpath " $arg" ;;
	    esac
	  else
	    case "$xrpath " in
	    *" $arg "*) ;;
	    *) func_append xrpath " $arg" ;;
	    esac
	  fi
	  prev=
	  continue
	  ;;
	shrext)
	  shrext_cmds="$arg"
	  prev=
	  continue
	  ;;
	weak)
	  func_append weak_libs " $arg"
	  prev=
	  continue
	  ;;
	xcclinker)
	  func_append linker_flags " $qarg"
	  func_append compiler_flags " $qarg"
	  prev=
	  func_append compile_command " $qarg"
	  func_append finalize_command " $qarg"
	  continue
	  ;;
	xcompiler)
	  func_append compiler_flags " $qarg"
	  prev=
	  func_append compile_command " $qarg"
	  func_append finalize_command " $qarg"
	  continue
	  ;;
	xlinker)
	  func_append linker_flags " $qarg"
	  func_append compiler_flags " $wl$qarg"
	  prev=
	  func_append compile_command " $wl$qarg"
	  func_append finalize_command " $wl$qarg"
	  continue
	  ;;
	*)
	  eval "$prev=\"\$arg\""
	  prev=
	  continue
	  ;;
	esac
      fi # test -n "$prev"

      prevarg="$arg"

      case $arg in
      -all-static)
	if test -n "$link_static_flag"; then
	  # See comment for -static flag below, for more details.
	  func_append compile_command " $link_static_flag"
	  func_append finalize_command " $link_static_flag"
	fi
	continue
	;;

      -allow-undefined)
	# FIXME: remove this flag sometime in the future.
	func_fatal_error "\`-allow-undefined' must not be used because it is the default"
	;;

      -avoid-version)
	avoid_version=yes
	continue
	;;

      -bindir)
	prev=bindir
	continue
	;;

      -dlopen)
	prev=dlfiles
	continue
	;;

      -dlpreopen)
	prev=dlprefiles
	continue
	;;

      -export-dynamic)
	export_dynamic=yes
	continue
	;;

      -export-symbols | -export-symbols-regex)
	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
	  func_fatal_error "more than one -exported-symbols argument is not allowed"
	fi
	if test "X$arg" = "X-export-symbols"; then
	  prev=expsyms
	else
	  prev=expsyms_regex
	fi
	continue
	;;

      -framework)
	prev=framework
	continue
	;;

      -inst-prefix-dir)
	prev=inst_prefix
	continue
	;;

      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
      # so, if we see these flags be careful not to treat them like -L
      -L[A-Z][A-Z]*:*)
	case $with_gcc/$host in
	no/*-*-irix* | /*-*-irix*)
	  func_append compile_command " $arg"
	  func_append finalize_command " $arg"
	  ;;
	esac
	continue
	;;

      -L*)
	func_stripname "-L" '' "$arg"
	if test -z "$func_stripname_result"; then
	  if test "$#" -gt 0; then
	    func_fatal_error "require no space between \`-L' and \`$1'"
	  else
	    func_fatal_error "need path for \`-L' option"
	  fi
	fi
	func_resolve_sysroot "$func_stripname_result"
	dir=$func_resolve_sysroot_result
	# We need an absolute path.
	case $dir in
	[\\/]* | [A-Za-z]:[\\/]*) ;;
	*)
	  absdir=`cd "$dir" && pwd`
	  test -z "$absdir" && \
	    func_fatal_error "cannot determine absolute directory name of \`$dir'"
	  dir="$absdir"
	  ;;
	esac
	case "$deplibs " in
	*" -L$dir "* | *" $arg "*)
	  # Will only happen for absolute or sysroot arguments
	  ;;
	*)
	  # Preserve sysroot, but never include relative directories
	  case $dir in
	    [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
	    *) func_append deplibs " -L$dir" ;;
	  esac
	  func_append lib_search_path " $dir"
	  ;;
	esac
	case $host in
	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
	  case :$dllsearchpath: in
	  *":$dir:"*) ;;
	  ::) dllsearchpath=$dir;;
	  *) func_append dllsearchpath ":$dir";;
	  esac
	  case :$dllsearchpath: in
	  *":$testbindir:"*) ;;
	  ::) dllsearchpath=$testbindir;;
	  *) func_append dllsearchpath ":$testbindir";;
	  esac
	  ;;
	esac
	continue
	;;

      -l*)
	if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
	  case $host in
	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
	    # These systems don't actually have a C or math library (as such)
	    continue
	    ;;
	  *-*-os2*)
	    # These systems don't actually have a C library (as such)
	    test "X$arg" = "X-lc" && continue
	    ;;
	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
	    # Do not include libc due to us having libc/libc_r.
	    test "X$arg" = "X-lc" && continue
	    ;;
	  *-*-rhapsody* | *-*-darwin1.[012])
	    # Rhapsody C and math libraries are in the System framework
	    func_append deplibs " System.ltframework"
	    continue
	    ;;
	  *-*-sco3.2v5* | *-*-sco5v6*)
	    # Causes problems with __ctype
	    test "X$arg" = "X-lc" && continue
	    ;;
	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
	    # Compiler inserts libc in the correct place for threads to work
	    test "X$arg" = "X-lc" && continue
	    ;;
	  esac
	elif test "X$arg" = "X-lc_r"; then
	 case $host in
	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
	   # Do not include libc_r directly, use -pthread flag.
	   continue
	   ;;
	 esac
	fi
	func_append deplibs " $arg"
	continue
	;;

      -module)
	module=yes
	continue
	;;

      # Tru64 UNIX uses -model [arg] to determine the layout of C++
      # classes, name mangling, and exception handling.
      # Darwin uses the -arch flag to determine output architecture.
      -model|-arch|-isysroot|--sysroot)
	func_append compiler_flags " $arg"
	func_append compile_command " $arg"
	func_append finalize_command " $arg"
	prev=xcompiler
	continue
	;;

      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
	func_append compiler_flags " $arg"
	func_append compile_command " $arg"
	func_append finalize_command " $arg"
	case "$new_inherited_linker_flags " in
	    *" $arg "*) ;;
	    * ) func_append new_inherited_linker_flags " $arg" ;;
	esac
	continue
	;;

      -multi_module)
	single_module="${wl}-multi_module"
	continue
	;;

      -no-fast-install)
	fast_install=no
	continue
	;;

      -no-install)
	case $host in
	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
	  # The PATH hackery in wrapper scripts is required on Windows
	  # and Darwin in order for the loader to find any dlls it needs.
	  func_warning "\`-no-install' is ignored for $host"
	  func_warning "assuming \`-no-fast-install' instead"
	  fast_install=no
	  ;;
	*) no_install=yes ;;
	esac
	continue
	;;

      -no-undefined)
	allow_undefined=no
	continue
	;;

      -objectlist)
	prev=objectlist
	continue
	;;

      -o) prev=output ;;

      -precious-files-regex)
	prev=precious_regex
	continue
	;;

      -release)
	prev=release
	continue
	;;

      -rpath)
	prev=rpath
	continue
	;;

      -R)
	prev=xrpath
	continue
	;;

      -R*)
	func_stripname '-R' '' "$arg"
	dir=$func_stripname_result
	# We need an absolute path.
	case $dir in
	[\\/]* | [A-Za-z]:[\\/]*) ;;
	=*)
	  func_stripname '=' '' "$dir"
	  dir=$lt_sysroot$func_stripname_result
	  ;;
	*)
	  func_fatal_error "only absolute run-paths are allowed"
	  ;;
	esac
	case "$xrpath " in
	*" $dir "*) ;;
	*) func_append xrpath " $dir" ;;
	esac
	continue
	;;

      -shared)
	# The effects of -shared are defined in a previous loop.
	continue
	;;

      -shrext)
	prev=shrext
	continue
	;;

      -static | -static-libtool-libs)
	# The effects of -static are defined in a previous loop.
	# We used to do the same as -all-static on platforms that
	# didn't have a PIC flag, but the assumption that the effects
	# would be equivalent was wrong.  It would break on at least
	# Digital Unix and AIX.
	continue
	;;

      -thread-safe)
	thread_safe=yes
	continue
	;;

      -version-info)
	prev=vinfo
	continue
	;;

      -version-number)
	prev=vinfo
	vinfo_number=yes
	continue
	;;

      -weak)
        prev=weak
	continue
	;;

      -Wc,*)
	func_stripname '-Wc,' '' "$arg"
	args=$func_stripname_result
	arg=
	save_ifs="$IFS"; IFS=','
	for flag in $args; do
	  IFS="$save_ifs"
          func_quote_for_eval "$flag"
	  func_append arg " $func_quote_for_eval_result"
	  func_append compiler_flags " $func_quote_for_eval_result"
	done
	IFS="$save_ifs"
	func_stripname ' ' '' "$arg"
	arg=$func_stripname_result
	;;

      -Wl,*)
	func_stripname '-Wl,' '' "$arg"
	args=$func_stripname_result
	arg=
	save_ifs="$IFS"; IFS=','
	for flag in $args; do
	  IFS="$save_ifs"
          func_quote_for_eval "$flag"
	  func_append arg " $wl$func_quote_for_eval_result"
	  func_append compiler_flags " $wl$func_quote_for_eval_result"
	  func_append linker_flags " $func_quote_for_eval_result"
	done
	IFS="$save_ifs"
	func_stripname ' ' '' "$arg"
	arg=$func_stripname_result
	;;

      -Xcompiler)
	prev=xcompiler
	continue
	;;

      -Xlinker)
	prev=xlinker
	continue
	;;

      -XCClinker)
	prev=xcclinker
	continue
	;;

      # -msg_* for osf cc
      -msg_*)
	func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
	;;

      # Flags to be passed through unchanged, with rationale:
      # -64, -mips[0-9]      enable 64-bit mode for the SGI compiler
      # -r[0-9][0-9]*        specify processor for the SGI compiler
      # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
      # +DA*, +DD*           enable 64-bit mode for the HP compiler
      # -q*                  compiler args for the IBM compiler
      # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
      # -F/path              path to uninstalled frameworks, gcc on darwin
      # -p, -pg, --coverage, -fprofile-*  profiling flags for GCC
      # @file                GCC response files
      # -tp=*                Portland pgcc target processor selection
      # --sysroot=*          for sysroot support
      # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
      -O*|-flto*|-fwhopr*|-fuse-linker-plugin)
        func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
        func_append compile_command " $arg"
        func_append finalize_command " $arg"
        func_append compiler_flags " $arg"
        continue
        ;;

      # Some other compiler flag.
      -* | +*)
        func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
	;;

      *.$objext)
	# A standard object.
	func_append objs " $arg"
	;;

      *.lo)
	# A libtool-controlled object.

	# Check to see that this really is a libtool object.
	if func_lalib_unsafe_p "$arg"; then
	  pic_object=
	  non_pic_object=

	  # Read the .lo file
	  func_source "$arg"

	  if test -z "$pic_object" ||
	     test -z "$non_pic_object" ||
	     test "$pic_object" = none &&
	     test "$non_pic_object" = none; then
	    func_fatal_error "cannot find name of object for \`$arg'"
	  fi

	  # Extract subdirectory from the argument.
	  func_dirname "$arg" "/" ""
	  xdir="$func_dirname_result"

	  if test "$pic_object" != none; then
	    # Prepend the subdirectory the object is found in.
	    pic_object="$xdir$pic_object"

	    if test "$prev" = dlfiles; then
	      if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
		func_append dlfiles " $pic_object"
		prev=
		continue
	      else
		# If libtool objects are unsupported, then we need to preload.
		prev=dlprefiles
	      fi
	    fi

	    # CHECK ME:  I think I busted this.  -Ossama
	    if test "$prev" = dlprefiles; then
	      # Preload the old-style object.
	      func_append dlprefiles " $pic_object"
	      prev=
	    fi

	    # A PIC object.
	    func_append libobjs " $pic_object"
	    arg="$pic_object"
	  fi

	  # Non-PIC object.
	  if test "$non_pic_object" != none; then
	    # Prepend the subdirectory the object is found in.
	    non_pic_object="$xdir$non_pic_object"

	    # A standard non-PIC object
	    func_append non_pic_objects " $non_pic_object"
	    if test -z "$pic_object" || test "$pic_object" = none ; then
	      arg="$non_pic_object"
	    fi
	  else
	    # If the PIC object exists, use it instead.
	    # $xdir was prepended to $pic_object above.
	    non_pic_object="$pic_object"
	    func_append non_pic_objects " $non_pic_object"
	  fi
	else
	  # Only an error if not doing a dry-run.
	  if $opt_dry_run; then
	    # Extract subdirectory from the argument.
	    func_dirname "$arg" "/" ""
	    xdir="$func_dirname_result"

	    func_lo2o "$arg"
	    pic_object=$xdir$objdir/$func_lo2o_result
	    non_pic_object=$xdir$func_lo2o_result
	    func_append libobjs " $pic_object"
	    func_append non_pic_objects " $non_pic_object"
	  else
	    func_fatal_error "\`$arg' is not a valid libtool object"
	  fi
	fi
	;;

      *.$libext)
	# An archive.
	func_append deplibs " $arg"
	func_append old_deplibs " $arg"
	continue
	;;

      *.la)
	# A libtool-controlled library.

	func_resolve_sysroot "$arg"
	if test "$prev" = dlfiles; then
	  # This library was specified with -dlopen.
	  func_append dlfiles " $func_resolve_sysroot_result"
	  prev=
	elif test "$prev" = dlprefiles; then
	  # The library was specified with -dlpreopen.
	  func_append dlprefiles " $func_resolve_sysroot_result"
	  prev=
	else
	  func_append deplibs " $func_resolve_sysroot_result"
	fi
	continue
	;;

      # Some other compiler argument.
      *)
	# Unknown arguments in both finalize_command and compile_command need
	# to be aesthetically quoted because they are evaled later.
	func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
	;;
      esac # arg

      # Now actually substitute the argument into the commands.
      if test -n "$arg"; then
	func_append compile_command " $arg"
	func_append finalize_command " $arg"
      fi
    done # argument parsing loop

    test -n "$prev" && \
      func_fatal_help "the \`$prevarg' option requires an argument"

    if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
      eval arg=\"$export_dynamic_flag_spec\"
      func_append compile_command " $arg"
      func_append finalize_command " $arg"
    fi

    oldlibs=
    # calculate the name of the file, without its directory
    func_basename "$output"
    outputname="$func_basename_result"
    libobjs_save="$libobjs"

    if test -n "$shlibpath_var"; then
      # get the directories listed in $shlibpath_var
      eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\`
    else
      shlib_search_path=
    fi
    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"

    func_dirname "$output" "/" ""
    output_objdir="$func_dirname_result$objdir"
    func_to_tool_file "$output_objdir/"
    tool_output_objdir=$func_to_tool_file_result
    # Create the object directory.
    func_mkdir_p "$output_objdir"

    # Determine the type of output
    case $output in
    "")
      func_fatal_help "you must specify an output file"
      ;;
    *.$libext) linkmode=oldlib ;;
    *.lo | *.$objext) linkmode=obj ;;
    *.la) linkmode=lib ;;
    *) linkmode=prog ;; # Anything else should be a program.
    esac

    specialdeplibs=

    libs=
    # Find all interdependent deplibs by searching for libraries
    # that are linked more than once (e.g. -la -lb -la)
    for deplib in $deplibs; do
      if $opt_preserve_dup_deps ; then
	case "$libs " in
	*" $deplib "*) func_append specialdeplibs " $deplib" ;;
	esac
      fi
      func_append libs " $deplib"
    done

    if test "$linkmode" = lib; then
      libs="$predeps $libs $compiler_lib_search_path $postdeps"

      # Compute libraries that are listed more than once in $predeps
      # $postdeps and mark them as special (i.e., whose duplicates are
      # not to be eliminated).
      pre_post_deps=
      if $opt_duplicate_compiler_generated_deps; then
	for pre_post_dep in $predeps $postdeps; do
	  case "$pre_post_deps " in
	  *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
	  esac
	  func_append pre_post_deps " $pre_post_dep"
	done
      fi
      pre_post_deps=
    fi

    deplibs=
    newdependency_libs=
    newlib_search_path=
    need_relink=no # whether we're linking any uninstalled libtool libraries
    notinst_deplibs= # not-installed libtool libraries
    notinst_path= # paths that contain not-installed libtool libraries

    case $linkmode in
    lib)
	passes="conv dlpreopen link"
	for file in $dlfiles $dlprefiles; do
	  case $file in
	  *.la) ;;
	  *)
	    func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
	    ;;
	  esac
	done
	;;
    prog)
	compile_deplibs=
	finalize_deplibs=
	alldeplibs=no
	newdlfiles=
	newdlprefiles=
	passes="conv scan dlopen dlpreopen link"
	;;
    *)  passes="conv"
	;;
    esac

    for pass in $passes; do
      # The preopen pass in lib mode reverses $deplibs; put it back here
      # so that -L comes before libs that need it for instance...
      if test "$linkmode,$pass" = "lib,link"; then
	## FIXME: Find the place where the list is rebuilt in the wrong
	##        order, and fix it there properly
        tmp_deplibs=
	for deplib in $deplibs; do
	  tmp_deplibs="$deplib $tmp_deplibs"
	done
	deplibs="$tmp_deplibs"
      fi

      if test "$linkmode,$pass" = "lib,link" ||
	 test "$linkmode,$pass" = "prog,scan"; then
	libs="$deplibs"
	deplibs=
      fi
      if test "$linkmode" = prog; then
	case $pass in
	dlopen) libs="$dlfiles" ;;
	dlpreopen) libs="$dlprefiles" ;;
	link)
	  libs="$deplibs %DEPLIBS%"
	  test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
	  ;;
	esac
      fi
      if test "$linkmode,$pass" = "lib,dlpreopen"; then
	# Collect and forward deplibs of preopened libtool libs
	for lib in $dlprefiles; do
	  # Ignore non-libtool-libs
	  dependency_libs=
	  func_resolve_sysroot "$lib"
	  case $lib in
	  *.la)	func_source "$func_resolve_sysroot_result" ;;
	  esac

	  # Collect preopened libtool deplibs, except any this library
	  # has declared as weak libs
	  for deplib in $dependency_libs; do
	    func_basename "$deplib"
            deplib_base=$func_basename_result
	    case " $weak_libs " in
	    *" $deplib_base "*) ;;
	    *) func_append deplibs " $deplib" ;;
	    esac
	  done
	done
	libs="$dlprefiles"
      fi
      if test "$pass" = dlopen; then
	# Collect dlpreopened libraries
	save_deplibs="$deplibs"
	deplibs=
      fi

      for deplib in $libs; do
	lib=
	found=no
	case $deplib in
	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
	  if test "$linkmode,$pass" = "prog,link"; then
	    compile_deplibs="$deplib $compile_deplibs"
	    finalize_deplibs="$deplib $finalize_deplibs"
	  else
	    func_append compiler_flags " $deplib"
	    if test "$linkmode" = lib ; then
		case "$new_inherited_linker_flags " in
		    *" $deplib "*) ;;
		    * ) func_append new_inherited_linker_flags " $deplib" ;;
		esac
	    fi
	  fi
	  continue
	  ;;
	-l*)
	  if test "$linkmode" != lib && test "$linkmode" != prog; then
	    func_warning "\`-l' is ignored for archives/objects"
	    continue
	  fi
	  func_stripname '-l' '' "$deplib"
	  name=$func_stripname_result
	  if test "$linkmode" = lib; then
	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
	  else
	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
	  fi
	  for searchdir in $searchdirs; do
	    for search_ext in .la $std_shrext .so .a; do
	      # Search the libtool library
	      lib="$searchdir/lib${name}${search_ext}"
	      if test -f "$lib"; then
		if test "$search_ext" = ".la"; then
		  found=yes
		else
		  found=no
		fi
		break 2
	      fi
	    done
	  done
	  if test "$found" != yes; then
	    # deplib doesn't seem to be a libtool library
	    if test "$linkmode,$pass" = "prog,link"; then
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    else
	      deplibs="$deplib $deplibs"
	      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
	    fi
	    continue
	  else # deplib is a libtool library
	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
	    # We need to do some special things here, and not later.
	    if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
	      case " $predeps $postdeps " in
	      *" $deplib "*)
		if func_lalib_p "$lib"; then
		  library_names=
		  old_library=
		  func_source "$lib"
		  for l in $old_library $library_names; do
		    ll="$l"
		  done
		  if test "X$ll" = "X$old_library" ; then # only static version available
		    found=no
		    func_dirname "$lib" "" "."
		    ladir="$func_dirname_result"
		    lib=$ladir/$old_library
		    if test "$linkmode,$pass" = "prog,link"; then
		      compile_deplibs="$deplib $compile_deplibs"
		      finalize_deplibs="$deplib $finalize_deplibs"
		    else
		      deplibs="$deplib $deplibs"
		      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
		    fi
		    continue
		  fi
		fi
		;;
	      *) ;;
	      esac
	    fi
	  fi
	  ;; # -l
	*.ltframework)
	  if test "$linkmode,$pass" = "prog,link"; then
	    compile_deplibs="$deplib $compile_deplibs"
	    finalize_deplibs="$deplib $finalize_deplibs"
	  else
	    deplibs="$deplib $deplibs"
	    if test "$linkmode" = lib ; then
		case "$new_inherited_linker_flags " in
		    *" $deplib "*) ;;
		    * ) func_append new_inherited_linker_flags " $deplib" ;;
		esac
	    fi
	  fi
	  continue
	  ;;
	-L*)
	  case $linkmode in
	  lib)
	    deplibs="$deplib $deplibs"
	    test "$pass" = conv && continue
	    newdependency_libs="$deplib $newdependency_libs"
	    func_stripname '-L' '' "$deplib"
	    func_resolve_sysroot "$func_stripname_result"
	    func_append newlib_search_path " $func_resolve_sysroot_result"
	    ;;
	  prog)
	    if test "$pass" = conv; then
	      deplibs="$deplib $deplibs"
	      continue
	    fi
	    if test "$pass" = scan; then
	      deplibs="$deplib $deplibs"
	    else
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    fi
	    func_stripname '-L' '' "$deplib"
	    func_resolve_sysroot "$func_stripname_result"
	    func_append newlib_search_path " $func_resolve_sysroot_result"
	    ;;
	  *)
	    func_warning "\`-L' is ignored for archives/objects"
	    ;;
	  esac # linkmode
	  continue
	  ;; # -L
	-R*)
	  if test "$pass" = link; then
	    func_stripname '-R' '' "$deplib"
	    func_resolve_sysroot "$func_stripname_result"
	    dir=$func_resolve_sysroot_result
	    # Make sure the xrpath contains only unique directories.
	    case "$xrpath " in
	    *" $dir "*) ;;
	    *) func_append xrpath " $dir" ;;
	    esac
	  fi
	  deplibs="$deplib $deplibs"
	  continue
	  ;;
	*.la)
	  func_resolve_sysroot "$deplib"
	  lib=$func_resolve_sysroot_result
	  ;;
	*.$libext)
	  if test "$pass" = conv; then
	    deplibs="$deplib $deplibs"
	    continue
	  fi
	  case $linkmode in
	  lib)
	    # Linking convenience modules into shared libraries is allowed,
	    # but linking other static libraries is non-portable.
	    case " $dlpreconveniencelibs " in
	    *" $deplib "*) ;;
	    *)
	      valid_a_lib=no
	      case $deplibs_check_method in
		match_pattern*)
		  set dummy $deplibs_check_method; shift
		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
		  if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
		    | $EGREP "$match_pattern_regex" > /dev/null; then
		    valid_a_lib=yes
		  fi
		;;
		pass_all)
		  valid_a_lib=yes
		;;
	      esac
	      if test "$valid_a_lib" != yes; then
		echo
		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
		echo "*** I have the capability to make that library automatically link in when"
		echo "*** you link to this library.  But I can only do this if you have a"
		echo "*** shared version of the library, which you do not appear to have"
		echo "*** because the file extensions .$libext of this argument makes me believe"
		echo "*** that it is just a static archive that I should not use here."
	      else
		echo
		$ECHO "*** Warning: Linking the shared library $output against the"
		$ECHO "*** static library $deplib is not portable!"
		deplibs="$deplib $deplibs"
	      fi
	      ;;
	    esac
	    continue
	    ;;
	  prog)
	    if test "$pass" != link; then
	      deplibs="$deplib $deplibs"
	    else
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    fi
	    continue
	    ;;
	  esac # linkmode
	  ;; # *.$libext
	*.lo | *.$objext)
	  if test "$pass" = conv; then
	    deplibs="$deplib $deplibs"
	  elif test "$linkmode" = prog; then
	    if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
	      # If there is no dlopen support or we're linking statically,
	      # we need to preload.
	      func_append newdlprefiles " $deplib"
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    else
	      func_append newdlfiles " $deplib"
	    fi
	  fi
	  continue
	  ;;
	%DEPLIBS%)
	  alldeplibs=yes
	  continue
	  ;;
	esac # case $deplib

	if test "$found" = yes || test -f "$lib"; then :
	else
	  func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
	fi

	# Check to see that this really is a libtool archive.
	func_lalib_unsafe_p "$lib" \
	  || func_fatal_error "\`$lib' is not a valid libtool archive"

	func_dirname "$lib" "" "."
	ladir="$func_dirname_result"

	dlname=
	dlopen=
	dlpreopen=
	libdir=
	library_names=
	old_library=
	inherited_linker_flags=
	# If the library was installed with an old release of libtool,
	# it will not redefine variables installed, or shouldnotlink
	installed=yes
	shouldnotlink=no
	avoidtemprpath=


	# Read the .la file
	func_source "$lib"

	# Convert "-framework foo" to "foo.ltframework"
	if test -n "$inherited_linker_flags"; then
	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
	    case " $new_inherited_linker_flags " in
	      *" $tmp_inherited_linker_flag "*) ;;
	      *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
	    esac
	  done
	fi
	dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	if test "$linkmode,$pass" = "lib,link" ||
	   test "$linkmode,$pass" = "prog,scan" ||
	   { test "$linkmode" != prog && test "$linkmode" != lib; }; then
	  test -n "$dlopen" && func_append dlfiles " $dlopen"
	  test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
	fi

	if test "$pass" = conv; then
	  # Only check for convenience libraries
	  deplibs="$lib $deplibs"
	  if test -z "$libdir"; then
	    if test -z "$old_library"; then
	      func_fatal_error "cannot find name of link library for \`$lib'"
	    fi
	    # It is a libtool convenience library, so add in its objects.
	    func_append convenience " $ladir/$objdir/$old_library"
	    func_append old_convenience " $ladir/$objdir/$old_library"
	    tmp_libs=
	    for deplib in $dependency_libs; do
	      deplibs="$deplib $deplibs"
	      if $opt_preserve_dup_deps ; then
		case "$tmp_libs " in
		*" $deplib "*) func_append specialdeplibs " $deplib" ;;
		esac
	      fi
	      func_append tmp_libs " $deplib"
	    done
	  elif test "$linkmode" != prog && test "$linkmode" != lib; then
	    func_fatal_error "\`$lib' is not a convenience library"
	  fi
	  continue
	fi # $pass = conv


	# Get the name of the library we link against.
	linklib=
	if test -n "$old_library" &&
	   { test "$prefer_static_libs" = yes ||
	     test "$prefer_static_libs,$installed" = "built,no"; }; then
	  linklib=$old_library
	else
	  for l in $old_library $library_names; do
	    linklib="$l"
	  done
	fi
	if test -z "$linklib"; then
	  func_fatal_error "cannot find name of link library for \`$lib'"
	fi

	# This library was specified with -dlopen.
	if test "$pass" = dlopen; then
	  if test -z "$libdir"; then
	    func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
	  fi
	  if test -z "$dlname" ||
	     test "$dlopen_support" != yes ||
	     test "$build_libtool_libs" = no; then
	    # If there is no dlname, no dlopen support or we're linking
	    # statically, we need to preload.  We also need to preload any
	    # dependent libraries so libltdl's deplib preloader doesn't
	    # bomb out in the load deplibs phase.
	    func_append dlprefiles " $lib $dependency_libs"
	  else
	    func_append newdlfiles " $lib"
	  fi
	  continue
	fi # $pass = dlopen

	# We need an absolute path.
	case $ladir in
	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
	*)
	  abs_ladir=`cd "$ladir" && pwd`
	  if test -z "$abs_ladir"; then
	    func_warning "cannot determine absolute directory name of \`$ladir'"
	    func_warning "passing it literally to the linker, although it might fail"
	    abs_ladir="$ladir"
	  fi
	  ;;
	esac
	func_basename "$lib"
	laname="$func_basename_result"

	# Find the relevant object directory and library name.
	if test "X$installed" = Xyes; then
	  if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
	    func_warning "library \`$lib' was moved."
	    dir="$ladir"
	    absdir="$abs_ladir"
	    libdir="$abs_ladir"
	  else
	    dir="$lt_sysroot$libdir"
	    absdir="$lt_sysroot$libdir"
	  fi
	  test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
	else
	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
	    dir="$ladir"
	    absdir="$abs_ladir"
	    # Remove this search path later
	    func_append notinst_path " $abs_ladir"
	  else
	    dir="$ladir/$objdir"
	    absdir="$abs_ladir/$objdir"
	    # Remove this search path later
	    func_append notinst_path " $abs_ladir"
	  fi
	fi # $installed = yes
	func_stripname 'lib' '.la' "$laname"
	name=$func_stripname_result

	# This library was specified with -dlpreopen.
	if test "$pass" = dlpreopen; then
	  if test -z "$libdir" && test "$linkmode" = prog; then
	    func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
	  fi
	  case "$host" in
	    # special handling for platforms with PE-DLLs.
	    *cygwin* | *mingw* | *cegcc* )
	      # Linker will automatically link against shared library if both
	      # static and shared are present.  Therefore, ensure we extract
	      # symbols from the import library if a shared library is present
	      # (otherwise, the dlopen module name will be incorrect).  We do
	      # this by putting the import library name into $newdlprefiles.
	      # We recover the dlopen module name by 'saving' the la file
	      # name in a special purpose variable, and (later) extracting the
	      # dlname from the la file.
	      if test -n "$dlname"; then
	        func_tr_sh "$dir/$linklib"
	        eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
	        func_append newdlprefiles " $dir/$linklib"
	      else
	        func_append newdlprefiles " $dir/$old_library"
	        # Keep a list of preopened convenience libraries to check
	        # that they are being used correctly in the link pass.
	        test -z "$libdir" && \
	          func_append dlpreconveniencelibs " $dir/$old_library"
	      fi
	    ;;
	    * )
	      # Prefer using a static library (so that no silly _DYNAMIC symbols
	      # are required to link).
	      if test -n "$old_library"; then
	        func_append newdlprefiles " $dir/$old_library"
	        # Keep a list of preopened convenience libraries to check
	        # that they are being used correctly in the link pass.
	        test -z "$libdir" && \
	          func_append dlpreconveniencelibs " $dir/$old_library"
	      # Otherwise, use the dlname, so that lt_dlopen finds it.
	      elif test -n "$dlname"; then
	        func_append newdlprefiles " $dir/$dlname"
	      else
	        func_append newdlprefiles " $dir/$linklib"
	      fi
	    ;;
	  esac
	fi # $pass = dlpreopen

	if test -z "$libdir"; then
	  # Link the convenience library
	  if test "$linkmode" = lib; then
	    deplibs="$dir/$old_library $deplibs"
	  elif test "$linkmode,$pass" = "prog,link"; then
	    compile_deplibs="$dir/$old_library $compile_deplibs"
	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
	  else
	    deplibs="$lib $deplibs" # used for prog,scan pass
	  fi
	  continue
	fi


	if test "$linkmode" = prog && test "$pass" != link; then
	  func_append newlib_search_path " $ladir"
	  deplibs="$lib $deplibs"

	  linkalldeplibs=no
	  if test "$link_all_deplibs" != no || test -z "$library_names" ||
	     test "$build_libtool_libs" = no; then
	    linkalldeplibs=yes
	  fi

	  tmp_libs=
	  for deplib in $dependency_libs; do
	    case $deplib in
	    -L*) func_stripname '-L' '' "$deplib"
	         func_resolve_sysroot "$func_stripname_result"
	         func_append newlib_search_path " $func_resolve_sysroot_result"
		 ;;
	    esac
	    # Need to link against all dependency_libs?
	    if test "$linkalldeplibs" = yes; then
	      deplibs="$deplib $deplibs"
	    else
	      # Need to hardcode shared library paths
	      # or/and link against static libraries
	      newdependency_libs="$deplib $newdependency_libs"
	    fi
	    if $opt_preserve_dup_deps ; then
	      case "$tmp_libs " in
	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
	      esac
	    fi
	    func_append tmp_libs " $deplib"
	  done # for deplib
	  continue
	fi # $linkmode = prog...

	if test "$linkmode,$pass" = "prog,link"; then
	  if test -n "$library_names" &&
	     { { test "$prefer_static_libs" = no ||
	         test "$prefer_static_libs,$installed" = "built,yes"; } ||
	       test -z "$old_library"; }; then
	    # We need to hardcode the library path
	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
	      # Make sure the rpath contains only unique directories.
	      case "$temp_rpath:" in
	      *"$absdir:"*) ;;
	      *) func_append temp_rpath "$absdir:" ;;
	      esac
	    fi

	    # Hardcode the library path.
	    # Skip directories that are in the system default run-time
	    # search path.
	    case " $sys_lib_dlsearch_path " in
	    *" $absdir "*) ;;
	    *)
	      case "$compile_rpath " in
	      *" $absdir "*) ;;
	      *) func_append compile_rpath " $absdir" ;;
	      esac
	      ;;
	    esac
	    case " $sys_lib_dlsearch_path " in
	    *" $libdir "*) ;;
	    *)
	      case "$finalize_rpath " in
	      *" $libdir "*) ;;
	      *) func_append finalize_rpath " $libdir" ;;
	      esac
	      ;;
	    esac
	  fi # $linkmode,$pass = prog,link...

	  if test "$alldeplibs" = yes &&
	     { test "$deplibs_check_method" = pass_all ||
	       { test "$build_libtool_libs" = yes &&
		 test -n "$library_names"; }; }; then
	    # We only need to search for static libraries
	    continue
	  fi
	fi

	link_static=no # Whether the deplib will be linked statically
	use_static_libs=$prefer_static_libs
	if test "$use_static_libs" = built && test "$installed" = yes; then
	  use_static_libs=no
	fi
	if test -n "$library_names" &&
	   { test "$use_static_libs" = no || test -z "$old_library"; }; then
	  case $host in
	  *cygwin* | *mingw* | *cegcc*)
	      # No point in relinking DLLs because paths are not encoded
	      func_append notinst_deplibs " $lib"
	      need_relink=no
	    ;;
	  *)
	    if test "$installed" = no; then
	      func_append notinst_deplibs " $lib"
	      need_relink=yes
	    fi
	    ;;
	  esac
	  # This is a shared library

	  # Warn about portability, can't link against -module's on some
	  # systems (darwin).  Don't bleat about dlopened modules though!
	  dlopenmodule=""
	  for dlpremoduletest in $dlprefiles; do
	    if test "X$dlpremoduletest" = "X$lib"; then
	      dlopenmodule="$dlpremoduletest"
	      break
	    fi
	  done
	  if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
	    echo
	    if test "$linkmode" = prog; then
	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
	    else
	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
	    fi
	    $ECHO "*** $linklib is not portable!"
	  fi
	  if test "$linkmode" = lib &&
	     test "$hardcode_into_libs" = yes; then
	    # Hardcode the library path.
	    # Skip directories that are in the system default run-time
	    # search path.
	    case " $sys_lib_dlsearch_path " in
	    *" $absdir "*) ;;
	    *)
	      case "$compile_rpath " in
	      *" $absdir "*) ;;
	      *) func_append compile_rpath " $absdir" ;;
	      esac
	      ;;
	    esac
	    case " $sys_lib_dlsearch_path " in
	    *" $libdir "*) ;;
	    *)
	      case "$finalize_rpath " in
	      *" $libdir "*) ;;
	      *) func_append finalize_rpath " $libdir" ;;
	      esac
	      ;;
	    esac
	  fi

	  if test -n "$old_archive_from_expsyms_cmds"; then
	    # figure out the soname
	    set dummy $library_names
	    shift
	    realname="$1"
	    shift
	    libname=`eval "\\$ECHO \"$libname_spec\""`
	    # use dlname if we got it. it's perfectly good, no?
	    if test -n "$dlname"; then
	      soname="$dlname"
	    elif test -n "$soname_spec"; then
	      # bleh windows
	      case $host in
	      *cygwin* | mingw* | *cegcc*)
	        func_arith $current - $age
		major=$func_arith_result
		versuffix="-$major"
		;;
	      esac
	      eval soname=\"$soname_spec\"
	    else
	      soname="$realname"
	    fi

	    # Make a new name for the extract_expsyms_cmds to use
	    soroot="$soname"
	    func_basename "$soroot"
	    soname="$func_basename_result"
	    func_stripname 'lib' '.dll' "$soname"
	    newlib=libimp-$func_stripname_result.a

	    # If the library has no export list, then create one now
	    if test -f "$output_objdir/$soname-def"; then :
	    else
	      func_verbose "extracting exported symbol list from \`$soname'"
	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
	    fi

	    # Create $newlib
	    if test -f "$output_objdir/$newlib"; then :; else
	      func_verbose "generating import library for \`$soname'"
	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
	    fi
	    # make sure the library variables are pointing to the new library
	    dir=$output_objdir
	    linklib=$newlib
	  fi # test -n "$old_archive_from_expsyms_cmds"

	  if test "$linkmode" = prog || test "$opt_mode" != relink; then
	    add_shlibpath=
	    add_dir=
	    add=
	    lib_linked=yes
	    case $hardcode_action in
	    immediate | unsupported)
	      if test "$hardcode_direct" = no; then
		add="$dir/$linklib"
		case $host in
		  *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
		  *-*-sysv4*uw2*) add_dir="-L$dir" ;;
		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
		    *-*-unixware7*) add_dir="-L$dir" ;;
		  *-*-darwin* )
		    # if the lib is a (non-dlopened) module then we can not
		    # link against it, someone is ignoring the earlier warnings
		    if /usr/bin/file -L $add 2> /dev/null |
			 $GREP ": [^:]* bundle" >/dev/null ; then
		      if test "X$dlopenmodule" != "X$lib"; then
			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
			if test -z "$old_library" ; then
			  echo
			  echo "*** And there doesn't seem to be a static archive available"
			  echo "*** The link will probably fail, sorry"
			else
			  add="$dir/$old_library"
			fi
		      elif test -n "$old_library"; then
			add="$dir/$old_library"
		      fi
		    fi
		esac
	      elif test "$hardcode_minus_L" = no; then
		case $host in
		*-*-sunos*) add_shlibpath="$dir" ;;
		esac
		add_dir="-L$dir"
		add="-l$name"
	      elif test "$hardcode_shlibpath_var" = no; then
		add_shlibpath="$dir"
		add="-l$name"
	      else
		lib_linked=no
	      fi
	      ;;
	    relink)
	      if test "$hardcode_direct" = yes &&
	         test "$hardcode_direct_absolute" = no; then
		add="$dir/$linklib"
	      elif test "$hardcode_minus_L" = yes; then
		add_dir="-L$absdir"
		# Try looking first in the location we're being installed to.
		if test -n "$inst_prefix_dir"; then
		  case $libdir in
		    [\\/]*)
		      func_append add_dir " -L$inst_prefix_dir$libdir"
		      ;;
		  esac
		fi
		add="-l$name"
	      elif test "$hardcode_shlibpath_var" = yes; then
		add_shlibpath="$dir"
		add="-l$name"
	      else
		lib_linked=no
	      fi
	      ;;
	    *) lib_linked=no ;;
	    esac

	    if test "$lib_linked" != yes; then
	      func_fatal_configuration "unsupported hardcode properties"
	    fi

	    if test -n "$add_shlibpath"; then
	      case :$compile_shlibpath: in
	      *":$add_shlibpath:"*) ;;
	      *) func_append compile_shlibpath "$add_shlibpath:" ;;
	      esac
	    fi
	    if test "$linkmode" = prog; then
	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
	    else
	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
	      test -n "$add" && deplibs="$add $deplibs"
	      if test "$hardcode_direct" != yes &&
		 test "$hardcode_minus_L" != yes &&
		 test "$hardcode_shlibpath_var" = yes; then
		case :$finalize_shlibpath: in
		*":$libdir:"*) ;;
		*) func_append finalize_shlibpath "$libdir:" ;;
		esac
	      fi
	    fi
	  fi

	  if test "$linkmode" = prog || test "$opt_mode" = relink; then
	    add_shlibpath=
	    add_dir=
	    add=
	    # Finalize command for both is simple: just hardcode it.
	    if test "$hardcode_direct" = yes &&
	       test "$hardcode_direct_absolute" = no; then
	      add="$libdir/$linklib"
	    elif test "$hardcode_minus_L" = yes; then
	      add_dir="-L$libdir"
	      add="-l$name"
	    elif test "$hardcode_shlibpath_var" = yes; then
	      case :$finalize_shlibpath: in
	      *":$libdir:"*) ;;
	      *) func_append finalize_shlibpath "$libdir:" ;;
	      esac
	      add="-l$name"
	    elif test "$hardcode_automatic" = yes; then
	      if test -n "$inst_prefix_dir" &&
		 test -f "$inst_prefix_dir$libdir/$linklib" ; then
		add="$inst_prefix_dir$libdir/$linklib"
	      else
		add="$libdir/$linklib"
	      fi
	    else
	      # We cannot seem to hardcode it, guess we'll fake it.
	      add_dir="-L$libdir"
	      # Try looking first in the location we're being installed to.
	      if test -n "$inst_prefix_dir"; then
		case $libdir in
		  [\\/]*)
		    func_append add_dir " -L$inst_prefix_dir$libdir"
		    ;;
		esac
	      fi
	      add="-l$name"
	    fi

	    if test "$linkmode" = prog; then
	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
	    else
	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
	      test -n "$add" && deplibs="$add $deplibs"
	    fi
	  fi
	elif test "$linkmode" = prog; then
	  # Here we assume that one of hardcode_direct or hardcode_minus_L
	  # is not unsupported.  This is valid on all known static and
	  # shared platforms.
	  if test "$hardcode_direct" != unsupported; then
	    test -n "$old_library" && linklib="$old_library"
	    compile_deplibs="$dir/$linklib $compile_deplibs"
	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
	  else
	    compile_deplibs="-l$name -L$dir $compile_deplibs"
	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
	  fi
	elif test "$build_libtool_libs" = yes; then
	  # Not a shared library
	  if test "$deplibs_check_method" != pass_all; then
	    # We're trying link a shared library against a static one
	    # but the system doesn't support it.

	    # Just print a warning and add the library to dependency_libs so
	    # that the program can be linked against the static library.
	    echo
	    $ECHO "*** Warning: This system can not link to static lib archive $lib."
	    echo "*** I have the capability to make that library automatically link in when"
	    echo "*** you link to this library.  But I can only do this if you have a"
	    echo "*** shared version of the library, which you do not appear to have."
	    if test "$module" = yes; then
	      echo "*** But as you try to build a module library, libtool will still create "
	      echo "*** a static module, that should work as long as the dlopening application"
	      echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
	      if test -z "$global_symbol_pipe"; then
		echo
		echo "*** However, this would only work if libtool was able to extract symbol"
		echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
		echo "*** not find such a program.  So, this module is probably useless."
		echo "*** \`nm' from GNU binutils and a full rebuild may help."
	      fi
	      if test "$build_old_libs" = no; then
		build_libtool_libs=module
		build_old_libs=yes
	      else
		build_libtool_libs=no
	      fi
	    fi
	  else
	    deplibs="$dir/$old_library $deplibs"
	    link_static=yes
	  fi
	fi # link shared/static library?

	if test "$linkmode" = lib; then
	  if test -n "$dependency_libs" &&
	     { test "$hardcode_into_libs" != yes ||
	       test "$build_old_libs" = yes ||
	       test "$link_static" = yes; }; then
	    # Extract -R from dependency_libs
	    temp_deplibs=
	    for libdir in $dependency_libs; do
	      case $libdir in
	      -R*) func_stripname '-R' '' "$libdir"
	           temp_xrpath=$func_stripname_result
		   case " $xrpath " in
		   *" $temp_xrpath "*) ;;
		   *) func_append xrpath " $temp_xrpath";;
		   esac;;
	      *) func_append temp_deplibs " $libdir";;
	      esac
	    done
	    dependency_libs="$temp_deplibs"
	  fi

	  func_append newlib_search_path " $absdir"
	  # Link against this library
	  test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
	  # ... and its dependency_libs
	  tmp_libs=
	  for deplib in $dependency_libs; do
	    newdependency_libs="$deplib $newdependency_libs"
	    case $deplib in
              -L*) func_stripname '-L' '' "$deplib"
                   func_resolve_sysroot "$func_stripname_result";;
              *) func_resolve_sysroot "$deplib" ;;
            esac
	    if $opt_preserve_dup_deps ; then
	      case "$tmp_libs " in
	      *" $func_resolve_sysroot_result "*)
                func_append specialdeplibs " $func_resolve_sysroot_result" ;;
	      esac
	    fi
	    func_append tmp_libs " $func_resolve_sysroot_result"
	  done

	  if test "$link_all_deplibs" != no; then
	    # Add the search paths of all dependency libraries
	    for deplib in $dependency_libs; do
	      path=
	      case $deplib in
	      -L*) path="$deplib" ;;
	      *.la)
	        func_resolve_sysroot "$deplib"
	        deplib=$func_resolve_sysroot_result
	        func_dirname "$deplib" "" "."
		dir=$func_dirname_result
		# We need an absolute path.
		case $dir in
		[\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
		*)
		  absdir=`cd "$dir" && pwd`
		  if test -z "$absdir"; then
		    func_warning "cannot determine absolute directory name of \`$dir'"
		    absdir="$dir"
		  fi
		  ;;
		esac
		if $GREP "^installed=no" $deplib > /dev/null; then
		case $host in
		*-*-darwin*)
		  depdepl=
		  eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
		  if test -n "$deplibrary_names" ; then
		    for tmp in $deplibrary_names ; do
		      depdepl=$tmp
		    done
		    if test -f "$absdir/$objdir/$depdepl" ; then
		      depdepl="$absdir/$objdir/$depdepl"
		      darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
                      if test -z "$darwin_install_name"; then
                          darwin_install_name=`${OTOOL64} -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
                      fi
		      func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
		      func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}"
		      path=
		    fi
		  fi
		  ;;
		*)
		  path="-L$absdir/$objdir"
		  ;;
		esac
		else
		  eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
		  test -z "$libdir" && \
		    func_fatal_error "\`$deplib' is not a valid libtool archive"
		  test "$absdir" != "$libdir" && \
		    func_warning "\`$deplib' seems to be moved"

		  path="-L$absdir"
		fi
		;;
	      esac
	      case " $deplibs " in
	      *" $path "*) ;;
	      *) deplibs="$path $deplibs" ;;
	      esac
	    done
	  fi # link_all_deplibs != no
	fi # linkmode = lib
      done # for deplib in $libs
      if test "$pass" = link; then
	if test "$linkmode" = "prog"; then
	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
	else
	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	fi
      fi
      dependency_libs="$newdependency_libs"
      if test "$pass" = dlpreopen; then
	# Link the dlpreopened libraries before other libraries
	for deplib in $save_deplibs; do
	  deplibs="$deplib $deplibs"
	done
      fi
      if test "$pass" != dlopen; then
	if test "$pass" != conv; then
	  # Make sure lib_search_path contains only unique directories.
	  lib_search_path=
	  for dir in $newlib_search_path; do
	    case "$lib_search_path " in
	    *" $dir "*) ;;
	    *) func_append lib_search_path " $dir" ;;
	    esac
	  done
	  newlib_search_path=
	fi

	if test "$linkmode,$pass" != "prog,link"; then
	  vars="deplibs"
	else
	  vars="compile_deplibs finalize_deplibs"
	fi
	for var in $vars dependency_libs; do
	  # Add libraries to $var in reverse order
	  eval tmp_libs=\"\$$var\"
	  new_libs=
	  for deplib in $tmp_libs; do
	    # FIXME: Pedantically, this is the right thing to do, so
	    #        that some nasty dependency loop isn't accidentally
	    #        broken:
	    #new_libs="$deplib $new_libs"
	    # Pragmatically, this seems to cause very few problems in
	    # practice:
	    case $deplib in
	    -L*) new_libs="$deplib $new_libs" ;;
	    -R*) ;;
	    *)
	      # And here is the reason: when a library appears more
	      # than once as an explicit dependence of a library, or
	      # is implicitly linked in more than once by the
	      # compiler, it is considered special, and multiple
	      # occurrences thereof are not removed.  Compare this
	      # with having the same library being listed as a
	      # dependency of multiple other libraries: in this case,
	      # we know (pedantically, we assume) the library does not
	      # need to be listed more than once, so we keep only the
	      # last copy.  This is not always right, but it is rare
	      # enough that we require users that really mean to play
	      # such unportable linking tricks to link the library
	      # using -Wl,-lname, so that libtool does not consider it
	      # for duplicate removal.
	      case " $specialdeplibs " in
	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
	      *)
		case " $new_libs " in
		*" $deplib "*) ;;
		*) new_libs="$deplib $new_libs" ;;
		esac
		;;
	      esac
	      ;;
	    esac
	  done
	  tmp_libs=
	  for deplib in $new_libs; do
	    case $deplib in
	    -L*)
	      case " $tmp_libs " in
	      *" $deplib "*) ;;
	      *) func_append tmp_libs " $deplib" ;;
	      esac
	      ;;
	    *) func_append tmp_libs " $deplib" ;;
	    esac
	  done
	  eval $var=\"$tmp_libs\"
	done # for var
      fi
      # Last step: remove runtime libs from dependency_libs
      # (they stay in deplibs)
      tmp_libs=
      for i in $dependency_libs ; do
	case " $predeps $postdeps $compiler_lib_search_path " in
	*" $i "*)
	  i=""
	  ;;
	esac
	if test -n "$i" ; then
	  func_append tmp_libs " $i"
	fi
      done
      dependency_libs=$tmp_libs
    done # for pass
    if test "$linkmode" = prog; then
      dlfiles="$newdlfiles"
    fi
    if test "$linkmode" = prog || test "$linkmode" = lib; then
      dlprefiles="$newdlprefiles"
    fi

    case $linkmode in
    oldlib)
      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
	func_warning "\`-dlopen' is ignored for archives"
      fi

      case " $deplibs" in
      *\ -l* | *\ -L*)
	func_warning "\`-l' and \`-L' are ignored for archives" ;;
      esac

      test -n "$rpath" && \
	func_warning "\`-rpath' is ignored for archives"

      test -n "$xrpath" && \
	func_warning "\`-R' is ignored for archives"

      test -n "$vinfo" && \
	func_warning "\`-version-info/-version-number' is ignored for archives"

      test -n "$release" && \
	func_warning "\`-release' is ignored for archives"

      test -n "$export_symbols$export_symbols_regex" && \
	func_warning "\`-export-symbols' is ignored for archives"

      # Now set the variables for building old libraries.
      build_libtool_libs=no
      oldlibs="$output"
      func_append objs "$old_deplibs"
      ;;

    lib)
      # Make sure we only generate libraries of the form `libNAME.la'.
      case $outputname in
      lib*)
	func_stripname 'lib' '.la' "$outputname"
	name=$func_stripname_result
	eval shared_ext=\"$shrext_cmds\"
	eval libname=\"$libname_spec\"
	;;
      *)
	test "$module" = no && \
	  func_fatal_help "libtool library \`$output' must begin with \`lib'"

	if test "$need_lib_prefix" != no; then
	  # Add the "lib" prefix for modules if required
	  func_stripname '' '.la' "$outputname"
	  name=$func_stripname_result
	  eval shared_ext=\"$shrext_cmds\"
	  eval libname=\"$libname_spec\"
	else
	  func_stripname '' '.la' "$outputname"
	  libname=$func_stripname_result
	fi
	;;
      esac

      if test -n "$objs"; then
	if test "$deplibs_check_method" != pass_all; then
	  func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
	else
	  echo
	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
	  $ECHO "*** objects $objs is not portable!"
	  func_append libobjs " $objs"
	fi
      fi

      test "$dlself" != no && \
	func_warning "\`-dlopen self' is ignored for libtool libraries"

      set dummy $rpath
      shift
      test "$#" -gt 1 && \
	func_warning "ignoring multiple \`-rpath's for a libtool library"

      install_libdir="$1"

      oldlibs=
      if test -z "$rpath"; then
	if test "$build_libtool_libs" = yes; then
	  # Building a libtool convenience library.
	  # Some compilers have problems with a `.al' extension so
	  # convenience libraries should have the same extension an
	  # archive normally would.
	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
	  build_libtool_libs=convenience
	  build_old_libs=yes
	fi

	test -n "$vinfo" && \
	  func_warning "\`-version-info/-version-number' is ignored for convenience libraries"

	test -n "$release" && \
	  func_warning "\`-release' is ignored for convenience libraries"
      else

	# Parse the version information argument.
	save_ifs="$IFS"; IFS=':'
	set dummy $vinfo 0 0 0
	shift
	IFS="$save_ifs"

	test -n "$7" && \
	  func_fatal_help "too many parameters to \`-version-info'"

	# convert absolute version numbers to libtool ages
	# this retains compatibility with .la files and attempts
	# to make the code below a bit more comprehensible

	case $vinfo_number in
	yes)
	  number_major="$1"
	  number_minor="$2"
	  number_revision="$3"
	  #
	  # There are really only two kinds -- those that
	  # use the current revision as the major version
	  # and those that subtract age and use age as
	  # a minor version.  But, then there is irix
	  # which has an extra 1 added just for fun
	  #
	  case $version_type in
	  # correct linux to gnu/linux during the next big refactor
	  darwin|linux|osf|windows|none)
	    func_arith $number_major + $number_minor
	    current=$func_arith_result
	    age="$number_minor"
	    revision="$number_revision"
	    ;;
	  freebsd-aout|freebsd-elf|qnx|sunos)
	    current="$number_major"
	    revision="$number_minor"
	    age="0"
	    ;;
	  irix|nonstopux)
	    func_arith $number_major + $number_minor
	    current=$func_arith_result
	    age="$number_minor"
	    revision="$number_minor"
	    lt_irix_increment=no
	    ;;
	  *)
	    func_fatal_configuration "$modename: unknown library version type \`$version_type'"
	    ;;
	  esac
	  ;;
	no)
	  current="$1"
	  revision="$2"
	  age="$3"
	  ;;
	esac

	# Check that each of the things are valid numbers.
	case $current in
	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
	*)
	  func_error "CURRENT \`$current' must be a nonnegative integer"
	  func_fatal_error "\`$vinfo' is not valid version information"
	  ;;
	esac

	case $revision in
	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
	*)
	  func_error "REVISION \`$revision' must be a nonnegative integer"
	  func_fatal_error "\`$vinfo' is not valid version information"
	  ;;
	esac

	case $age in
	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
	*)
	  func_error "AGE \`$age' must be a nonnegative integer"
	  func_fatal_error "\`$vinfo' is not valid version information"
	  ;;
	esac

	if test "$age" -gt "$current"; then
	  func_error "AGE \`$age' is greater than the current interface number \`$current'"
	  func_fatal_error "\`$vinfo' is not valid version information"
	fi

	# Calculate the version variables.
	major=
	versuffix=
	verstring=
	case $version_type in
	none) ;;

	darwin)
	  # Like Linux, but with the current version available in
	  # verstring for coding it into the library header
	  func_arith $current - $age
	  major=.$func_arith_result
	  versuffix="$major.$age.$revision"
	  # Darwin ld doesn't like 0 for these options...
	  func_arith $current + 1
	  minor_current=$func_arith_result
	  xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
	  ;;

	freebsd-aout)
	  major=".$current"
	  versuffix=".$current.$revision";
	  ;;

	freebsd-elf)
	  major=".$current"
	  versuffix=".$current"
	  ;;

	irix | nonstopux)
	  if test "X$lt_irix_increment" = "Xno"; then
	    func_arith $current - $age
	  else
	    func_arith $current - $age + 1
	  fi
	  major=$func_arith_result

	  case $version_type in
	    nonstopux) verstring_prefix=nonstopux ;;
	    *)         verstring_prefix=sgi ;;
	  esac
	  verstring="$verstring_prefix$major.$revision"

	  # Add in all the interfaces that we are compatible with.
	  loop=$revision
	  while test "$loop" -ne 0; do
	    func_arith $revision - $loop
	    iface=$func_arith_result
	    func_arith $loop - 1
	    loop=$func_arith_result
	    verstring="$verstring_prefix$major.$iface:$verstring"
	  done

	  # Before this point, $major must not contain `.'.
	  major=.$major
	  versuffix="$major.$revision"
	  ;;

	linux) # correct to gnu/linux during the next big refactor
	  func_arith $current - $age
	  major=.$func_arith_result
	  versuffix="$major.$age.$revision"
	  ;;

	osf)
	  func_arith $current - $age
	  major=.$func_arith_result
	  versuffix=".$current.$age.$revision"
	  verstring="$current.$age.$revision"

	  # Add in all the interfaces that we are compatible with.
	  loop=$age
	  while test "$loop" -ne 0; do
	    func_arith $current - $loop
	    iface=$func_arith_result
	    func_arith $loop - 1
	    loop=$func_arith_result
	    verstring="$verstring:${iface}.0"
	  done

	  # Make executables depend on our current version.
	  func_append verstring ":${current}.0"
	  ;;

	qnx)
	  major=".$current"
	  versuffix=".$current"
	  ;;

	sunos)
	  major=".$current"
	  versuffix=".$current.$revision"
	  ;;

	windows)
	  # Use '-' rather than '.', since we only want one
	  # extension on DOS 8.3 filesystems.
	  func_arith $current - $age
	  major=$func_arith_result
	  versuffix="-$major"
	  ;;

	*)
	  func_fatal_configuration "unknown library version type \`$version_type'"
	  ;;
	esac

	# Clear the version info if we defaulted, and they specified a release.
	if test -z "$vinfo" && test -n "$release"; then
	  major=
	  case $version_type in
	  darwin)
	    # we can't check for "0.0" in archive_cmds due to quoting
	    # problems, so we reset it completely
	    verstring=
	    ;;
	  *)
	    verstring="0.0"
	    ;;
	  esac
	  if test "$need_version" = no; then
	    versuffix=
	  else
	    versuffix=".0.0"
	  fi
	fi

	# Remove version info from name if versioning should be avoided
	if test "$avoid_version" = yes && test "$need_version" = no; then
	  major=
	  versuffix=
	  verstring=""
	fi

	# Check to see if the archive will have undefined symbols.
	if test "$allow_undefined" = yes; then
	  if test "$allow_undefined_flag" = unsupported; then
	    func_warning "undefined symbols not allowed in $host shared libraries"
	    build_libtool_libs=no
	    build_old_libs=yes
	  fi
	else
	  # Don't allow undefined symbols.
	  allow_undefined_flag="$no_undefined_flag"
	fi

      fi

      func_generate_dlsyms "$libname" "$libname" "yes"
      func_append libobjs " $symfileobj"
      test "X$libobjs" = "X " && libobjs=

      if test "$opt_mode" != relink; then
	# Remove our outputs, but don't remove object files since they
	# may have been created when compiling PIC objects.
	removelist=
	tempremovelist=`$ECHO "$output_objdir/*"`
	for p in $tempremovelist; do
	  case $p in
	    *.$objext | *.gcno)
	       ;;
	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
	       if test "X$precious_files_regex" != "X"; then
		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
		 then
		   continue
		 fi
	       fi
	       func_append removelist " $p"
	       ;;
	    *) ;;
	  esac
	done
	test -n "$removelist" && \
	  func_show_eval "${RM}r \$removelist"
      fi

      # Now set the variables for building old libraries.
      if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
	func_append oldlibs " $output_objdir/$libname.$libext"

	# Transform .lo files to .o files.
	oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP`
      fi

      # Eliminate all temporary directories.
      #for path in $notinst_path; do
      #	lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
      #	deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
      #	dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
      #done

      if test -n "$xrpath"; then
	# If the user specified any rpath flags, then add them.
	temp_xrpath=
	for libdir in $xrpath; do
	  func_replace_sysroot "$libdir"
	  func_append temp_xrpath " -R$func_replace_sysroot_result"
	  case "$finalize_rpath " in
	  *" $libdir "*) ;;
	  *) func_append finalize_rpath " $libdir" ;;
	  esac
	done
	if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
	  dependency_libs="$temp_xrpath $dependency_libs"
	fi
      fi

      # Make sure dlfiles contains only unique files that won't be dlpreopened
      old_dlfiles="$dlfiles"
      dlfiles=
      for lib in $old_dlfiles; do
	case " $dlprefiles $dlfiles " in
	*" $lib "*) ;;
	*) func_append dlfiles " $lib" ;;
	esac
      done

      # Make sure dlprefiles contains only unique files
      old_dlprefiles="$dlprefiles"
      dlprefiles=
      for lib in $old_dlprefiles; do
	case "$dlprefiles " in
	*" $lib "*) ;;
	*) func_append dlprefiles " $lib" ;;
	esac
      done

      if test "$build_libtool_libs" = yes; then
	if test -n "$rpath"; then
	  case $host in
	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
	    # these systems don't actually have a c library (as such)!
	    ;;
	  *-*-rhapsody* | *-*-darwin1.[012])
	    # Rhapsody C library is in the System framework
	    func_append deplibs " System.ltframework"
	    ;;
	  *-*-netbsd*)
	    # Don't link with libc until the a.out ld.so is fixed.
	    ;;
	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
	    # Do not include libc due to us having libc/libc_r.
	    ;;
	  *-*-sco3.2v5* | *-*-sco5v6*)
	    # Causes problems with __ctype
	    ;;
	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
	    # Compiler inserts libc in the correct place for threads to work
	    ;;
	  *)
	    # Add libc to deplibs on all other systems if necessary.
	    if test "$build_libtool_need_lc" = "yes"; then
	      func_append deplibs " -lc"
	    fi
	    ;;
	  esac
	fi

	# Transform deplibs into only deplibs that can be linked in shared.
	name_save=$name
	libname_save=$libname
	release_save=$release
	versuffix_save=$versuffix
	major_save=$major
	# I'm not sure if I'm treating the release correctly.  I think
	# release should show up in the -l (ie -lgmp5) so we don't want to
	# add it in twice.  Is that correct?
	release=""
	versuffix=""
	major=""
	newdeplibs=
	droppeddeps=no
	case $deplibs_check_method in
	pass_all)
	  # Don't check for shared/static.  Everything works.
	  # This might be a little naive.  We might want to check
	  # whether the library exists or not.  But this is on
	  # osf3 & osf4 and I'm not really sure... Just
	  # implementing what was already the behavior.
	  newdeplibs=$deplibs
	  ;;
	test_compile)
	  # This code stresses the "libraries are programs" paradigm to its
	  # limits. Maybe even breaks it.  We compile a program, linking it
	  # against the deplibs as a proxy for the library.  Then we can check
	  # whether they linked in statically or dynamically with ldd.
	  $opt_dry_run || $RM conftest.c
	  cat > conftest.c </dev/null`
		    $nocaseglob
		  else
		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
		  fi
		  for potent_lib in $potential_libs; do
		      # Follow soft links.
		      if ls -lLd "$potent_lib" 2>/dev/null |
			 $GREP " -> " >/dev/null; then
			continue
		      fi
		      # The statement above tries to avoid entering an
		      # endless loop below, in case of cyclic links.
		      # We might still enter an endless loop, since a link
		      # loop can be closed while we follow links,
		      # but so what?
		      potlib="$potent_lib"
		      while test -h "$potlib" 2>/dev/null; do
			potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
			case $potliblink in
			[\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
			*) potlib=`$ECHO "$potlib" | $SED 's,[^/]*$,,'`"$potliblink";;
			esac
		      done
		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
			 $SED -e 10q |
			 $EGREP "$file_magic_regex" > /dev/null; then
			func_append newdeplibs " $a_deplib"
			a_deplib=""
			break 2
		      fi
		  done
		done
	      fi
	      if test -n "$a_deplib" ; then
		droppeddeps=yes
		echo
		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
		echo "*** I have the capability to make that library automatically link in when"
		echo "*** you link to this library.  But I can only do this if you have a"
		echo "*** shared version of the library, which you do not appear to have"
		echo "*** because I did check the linker path looking for a file starting"
		if test -z "$potlib" ; then
		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
		else
		  $ECHO "*** with $libname and none of the candidates passed a file format test"
		  $ECHO "*** using a file magic. Last file checked: $potlib"
		fi
	      fi
	      ;;
	    *)
	      # Add a -L argument.
	      func_append newdeplibs " $a_deplib"
	      ;;
	    esac
	  done # Gone through all deplibs.
	  ;;
	match_pattern*)
	  set dummy $deplibs_check_method; shift
	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
	  for a_deplib in $deplibs; do
	    case $a_deplib in
	    -l*)
	      func_stripname -l '' "$a_deplib"
	      name=$func_stripname_result
	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
		case " $predeps $postdeps " in
		*" $a_deplib "*)
		  func_append newdeplibs " $a_deplib"
		  a_deplib=""
		  ;;
		esac
	      fi
	      if test -n "$a_deplib" ; then
		libname=`eval "\\$ECHO \"$libname_spec\""`
		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
		  for potent_lib in $potential_libs; do
		    potlib="$potent_lib" # see symlink-check above in file_magic test
		    if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
		       $EGREP "$match_pattern_regex" > /dev/null; then
		      func_append newdeplibs " $a_deplib"
		      a_deplib=""
		      break 2
		    fi
		  done
		done
	      fi
	      if test -n "$a_deplib" ; then
		droppeddeps=yes
		echo
		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
		echo "*** I have the capability to make that library automatically link in when"
		echo "*** you link to this library.  But I can only do this if you have a"
		echo "*** shared version of the library, which you do not appear to have"
		echo "*** because I did check the linker path looking for a file starting"
		if test -z "$potlib" ; then
		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
		else
		  $ECHO "*** with $libname and none of the candidates passed a file format test"
		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
		fi
	      fi
	      ;;
	    *)
	      # Add a -L argument.
	      func_append newdeplibs " $a_deplib"
	      ;;
	    esac
	  done # Gone through all deplibs.
	  ;;
	none | unknown | *)
	  newdeplibs=""
	  tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
	  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
	    for i in $predeps $postdeps ; do
	      # can't use Xsed below, because $i might contain '/'
	      tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s,$i,,"`
	    done
	  fi
	  case $tmp_deplibs in
	  *[!\	\ ]*)
	    echo
	    if test "X$deplibs_check_method" = "Xnone"; then
	      echo "*** Warning: inter-library dependencies are not supported in this platform."
	    else
	      echo "*** Warning: inter-library dependencies are not known to be supported."
	    fi
	    echo "*** All declared inter-library dependencies are being dropped."
	    droppeddeps=yes
	    ;;
	  esac
	  ;;
	esac
	versuffix=$versuffix_save
	major=$major_save
	release=$release_save
	libname=$libname_save
	name=$name_save

	case $host in
	*-*-rhapsody* | *-*-darwin1.[012])
	  # On Rhapsody replace the C library with the System framework
	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
	  ;;
	esac

	if test "$droppeddeps" = yes; then
	  if test "$module" = yes; then
	    echo
	    echo "*** Warning: libtool could not satisfy all declared inter-library"
	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
	    echo "*** a static module, that should work as long as the dlopening"
	    echo "*** application is linked with the -dlopen flag."
	    if test -z "$global_symbol_pipe"; then
	      echo
	      echo "*** However, this would only work if libtool was able to extract symbol"
	      echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
	      echo "*** not find such a program.  So, this module is probably useless."
	      echo "*** \`nm' from GNU binutils and a full rebuild may help."
	    fi
	    if test "$build_old_libs" = no; then
	      oldlibs="$output_objdir/$libname.$libext"
	      build_libtool_libs=module
	      build_old_libs=yes
	    else
	      build_libtool_libs=no
	    fi
	  else
	    echo "*** The inter-library dependencies that have been dropped here will be"
	    echo "*** automatically added whenever a program is linked with this library"
	    echo "*** or is declared to -dlopen it."

	    if test "$allow_undefined" = no; then
	      echo
	      echo "*** Since this library must not contain undefined symbols,"
	      echo "*** because either the platform does not support them or"
	      echo "*** it was explicitly requested with -no-undefined,"
	      echo "*** libtool will only create a static version of it."
	      if test "$build_old_libs" = no; then
		oldlibs="$output_objdir/$libname.$libext"
		build_libtool_libs=module
		build_old_libs=yes
	      else
		build_libtool_libs=no
	      fi
	    fi
	  fi
	fi
	# Done checking deplibs!
	deplibs=$newdeplibs
      fi
      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
      case $host in
	*-*-darwin*)
	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	  new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	  deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	  ;;
      esac

      # move library search paths that coincide with paths to not yet
      # installed libraries to the beginning of the library search list
      new_libs=
      for path in $notinst_path; do
	case " $new_libs " in
	*" -L$path/$objdir "*) ;;
	*)
	  case " $deplibs " in
	  *" -L$path/$objdir "*)
	    func_append new_libs " -L$path/$objdir" ;;
	  esac
	  ;;
	esac
      done
      for deplib in $deplibs; do
	case $deplib in
	-L*)
	  case " $new_libs " in
	  *" $deplib "*) ;;
	  *) func_append new_libs " $deplib" ;;
	  esac
	  ;;
	*) func_append new_libs " $deplib" ;;
	esac
      done
      deplibs="$new_libs"

      # All the library-specific variables (install_libdir is set above).
      library_names=
      old_library=
      dlname=

      # Test again, we may have decided not to build it any more
      if test "$build_libtool_libs" = yes; then
	# Remove ${wl} instances when linking with ld.
	# FIXME: should test the right _cmds variable.
	case $archive_cmds in
	  *\$LD\ *) wl= ;;
        esac
	if test "$hardcode_into_libs" = yes; then
	  # Hardcode the library paths
	  hardcode_libdirs=
	  dep_rpath=
	  rpath="$finalize_rpath"
	  test "$opt_mode" != relink && rpath="$compile_rpath$rpath"
	  for libdir in $rpath; do
	    if test -n "$hardcode_libdir_flag_spec"; then
	      if test -n "$hardcode_libdir_separator"; then
		func_replace_sysroot "$libdir"
		libdir=$func_replace_sysroot_result
		if test -z "$hardcode_libdirs"; then
		  hardcode_libdirs="$libdir"
		else
		  # Just accumulate the unique libdirs.
		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
		    ;;
		  *)
		    func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
		    ;;
		  esac
		fi
	      else
		eval flag=\"$hardcode_libdir_flag_spec\"
		func_append dep_rpath " $flag"
	      fi
	    elif test -n "$runpath_var"; then
	      case "$perm_rpath " in
	      *" $libdir "*) ;;
	      *) func_append perm_rpath " $libdir" ;;
	      esac
	    fi
	  done
	  # Substitute the hardcoded libdirs into the rpath.
	  if test -n "$hardcode_libdir_separator" &&
	     test -n "$hardcode_libdirs"; then
	    libdir="$hardcode_libdirs"
	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
	  fi
	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
	    # We should set the runpath_var.
	    rpath=
	    for dir in $perm_rpath; do
	      func_append rpath "$dir:"
	    done
	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
	  fi
	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
	fi

	shlibpath="$finalize_shlibpath"
	test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
	if test -n "$shlibpath"; then
	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
	fi

	# Get the real and link names of the library.
	eval shared_ext=\"$shrext_cmds\"
	eval library_names=\"$library_names_spec\"
	set dummy $library_names
	shift
	realname="$1"
	shift

	if test -n "$soname_spec"; then
	  eval soname=\"$soname_spec\"
	else
	  soname="$realname"
	fi
	if test -z "$dlname"; then
	  dlname=$soname
	fi

	lib="$output_objdir/$realname"
	linknames=
	for link
	do
	  func_append linknames " $link"
	done

	# Use standard objects if they are pic
	test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
	test "X$libobjs" = "X " && libobjs=

	delfiles=
	if test -n "$export_symbols" && test -n "$include_expsyms"; then
	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
	  export_symbols="$output_objdir/$libname.uexp"
	  func_append delfiles " $export_symbols"
	fi

	orig_export_symbols=
	case $host_os in
	cygwin* | mingw* | cegcc*)
	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
	    # exporting using user supplied symfile
	    if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
	      # and it's NOT already a .def file. Must figure out
	      # which of the given symbols are data symbols and tag
	      # them as such. So, trigger use of export_symbols_cmds.
	      # export_symbols gets reassigned inside the "prepare
	      # the list of exported symbols" if statement, so the
	      # include_expsyms logic still works.
	      orig_export_symbols="$export_symbols"
	      export_symbols=
	      always_export_symbols=yes
	    fi
	  fi
	  ;;
	esac

	# Prepare the list of exported symbols
	if test -z "$export_symbols"; then
	  if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
	    func_verbose "generating symbol list for \`$libname.la'"
	    export_symbols="$output_objdir/$libname.exp"
	    $opt_dry_run || $RM $export_symbols
	    cmds=$export_symbols_cmds
	    save_ifs="$IFS"; IFS='~'
	    for cmd1 in $cmds; do
	      IFS="$save_ifs"
	      # Take the normal branch if the nm_file_list_spec branch
	      # doesn't work or if tool conversion is not needed.
	      case $nm_file_list_spec~$to_tool_file_cmd in
		*~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
		  try_normal_branch=yes
		  eval cmd=\"$cmd1\"
		  func_len " $cmd"
		  len=$func_len_result
		  ;;
		*)
		  try_normal_branch=no
		  ;;
	      esac
	      if test "$try_normal_branch" = yes \
		 && { test "$len" -lt "$max_cmd_len" \
		      || test "$max_cmd_len" -le -1; }
	      then
		func_show_eval "$cmd" 'exit $?'
		skipped_export=false
	      elif test -n "$nm_file_list_spec"; then
		func_basename "$output"
		output_la=$func_basename_result
		save_libobjs=$libobjs
		save_output=$output
		output=${output_objdir}/${output_la}.nm
		func_to_tool_file "$output"
		libobjs=$nm_file_list_spec$func_to_tool_file_result
		func_append delfiles " $output"
		func_verbose "creating $NM input file list: $output"
		for obj in $save_libobjs; do
		  func_to_tool_file "$obj"
		  $ECHO "$func_to_tool_file_result"
		done > "$output"
		eval cmd=\"$cmd1\"
		func_show_eval "$cmd" 'exit $?'
		output=$save_output
		libobjs=$save_libobjs
		skipped_export=false
	      else
		# The command line is too long to execute in one step.
		func_verbose "using reloadable object file for export list..."
		skipped_export=:
		# Break out early, otherwise skipped_export may be
		# set to false by a later but shorter cmd.
		break
	      fi
	    done
	    IFS="$save_ifs"
	    if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
	    fi
	  fi
	fi

	if test -n "$export_symbols" && test -n "$include_expsyms"; then
	  tmp_export_symbols="$export_symbols"
	  test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
	  $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
	fi

	if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
	  # The given exports_symbols file has to be filtered, so filter it.
	  func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
	  # 's' commands which not all seds can handle. GNU sed should be fine
	  # though. Also, the filter scales superlinearly with the number of
	  # global variables. join(1) would be nice here, but unfortunately
	  # isn't a blessed tool.
	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
	  func_append delfiles " $export_symbols $output_objdir/$libname.filter"
	  export_symbols=$output_objdir/$libname.def
	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
	fi

	tmp_deplibs=
	for test_deplib in $deplibs; do
	  case " $convenience " in
	  *" $test_deplib "*) ;;
	  *)
	    func_append tmp_deplibs " $test_deplib"
	    ;;
	  esac
	done
	deplibs="$tmp_deplibs"

	if test -n "$convenience"; then
	  if test -n "$whole_archive_flag_spec" &&
	    test "$compiler_needs_object" = yes &&
	    test -z "$libobjs"; then
	    # extract the archives, so we have objects to list.
	    # TODO: could optimize this to just extract one archive.
	    whole_archive_flag_spec=
	  fi
	  if test -n "$whole_archive_flag_spec"; then
	    save_libobjs=$libobjs
	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
	    test "X$libobjs" = "X " && libobjs=
	  else
	    gentop="$output_objdir/${outputname}x"
	    func_append generated " $gentop"

	    func_extract_archives $gentop $convenience
	    func_append libobjs " $func_extract_archives_result"
	    test "X$libobjs" = "X " && libobjs=
	  fi
	fi

	if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
	  eval flag=\"$thread_safe_flag_spec\"
	  func_append linker_flags " $flag"
	fi

	# Make a backup of the uninstalled library when relinking
	if test "$opt_mode" = relink; then
	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
	fi

	# Do each of the archive commands.
	if test "$module" = yes && test -n "$module_cmds" ; then
	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
	    eval test_cmds=\"$module_expsym_cmds\"
	    cmds=$module_expsym_cmds
	  else
	    eval test_cmds=\"$module_cmds\"
	    cmds=$module_cmds
	  fi
	else
	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
	    eval test_cmds=\"$archive_expsym_cmds\"
	    cmds=$archive_expsym_cmds
	  else
	    eval test_cmds=\"$archive_cmds\"
	    cmds=$archive_cmds
	  fi
	fi

	if test "X$skipped_export" != "X:" &&
	   func_len " $test_cmds" &&
	   len=$func_len_result &&
	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
	  :
	else
	  # The command line is too long to link in one step, link piecewise
	  # or, if using GNU ld and skipped_export is not :, use a linker
	  # script.

	  # Save the value of $output and $libobjs because we want to
	  # use them later.  If we have whole_archive_flag_spec, we
	  # want to use save_libobjs as it was before
	  # whole_archive_flag_spec was expanded, because we can't
	  # assume the linker understands whole_archive_flag_spec.
	  # This may have to be revisited, in case too many
	  # convenience libraries get linked in and end up exceeding
	  # the spec.
	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
	    save_libobjs=$libobjs
	  fi
	  save_output=$output
	  func_basename "$output"
	  output_la=$func_basename_result

	  # Clear the reloadable object creation command queue and
	  # initialize k to one.
	  test_cmds=
	  concat_cmds=
	  objlist=
	  last_robj=
	  k=1

	  if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
	    output=${output_objdir}/${output_la}.lnkscript
	    func_verbose "creating GNU ld script: $output"
	    echo 'INPUT (' > $output
	    for obj in $save_libobjs
	    do
	      func_to_tool_file "$obj"
	      $ECHO "$func_to_tool_file_result" >> $output
	    done
	    echo ')' >> $output
	    func_append delfiles " $output"
	    func_to_tool_file "$output"
	    output=$func_to_tool_file_result
	  elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
	    output=${output_objdir}/${output_la}.lnk
	    func_verbose "creating linker input file list: $output"
	    : > $output
	    set x $save_libobjs
	    shift
	    firstobj=
	    if test "$compiler_needs_object" = yes; then
	      firstobj="$1 "
	      shift
	    fi
	    for obj
	    do
	      func_to_tool_file "$obj"
	      $ECHO "$func_to_tool_file_result" >> $output
	    done
	    func_append delfiles " $output"
	    func_to_tool_file "$output"
	    output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
	  else
	    if test -n "$save_libobjs"; then
	      func_verbose "creating reloadable object files..."
	      output=$output_objdir/$output_la-${k}.$objext
	      eval test_cmds=\"$reload_cmds\"
	      func_len " $test_cmds"
	      len0=$func_len_result
	      len=$len0

	      # Loop over the list of objects to be linked.
	      for obj in $save_libobjs
	      do
		func_len " $obj"
		func_arith $len + $func_len_result
		len=$func_arith_result
		if test "X$objlist" = X ||
		   test "$len" -lt "$max_cmd_len"; then
		  func_append objlist " $obj"
		else
		  # The command $test_cmds is almost too long, add a
		  # command to the queue.
		  if test "$k" -eq 1 ; then
		    # The first file doesn't have a previous command to add.
		    reload_objs=$objlist
		    eval concat_cmds=\"$reload_cmds\"
		  else
		    # All subsequent reloadable object files will link in
		    # the last one created.
		    reload_objs="$objlist $last_robj"
		    eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
		  fi
		  last_robj=$output_objdir/$output_la-${k}.$objext
		  func_arith $k + 1
		  k=$func_arith_result
		  output=$output_objdir/$output_la-${k}.$objext
		  objlist=" $obj"
		  func_len " $last_robj"
		  func_arith $len0 + $func_len_result
		  len=$func_arith_result
		fi
	      done
	      # Handle the remaining objects by creating one last
	      # reloadable object file.  All subsequent reloadable object
	      # files will link in the last one created.
	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
	      reload_objs="$objlist $last_robj"
	      eval concat_cmds=\"\${concat_cmds}$reload_cmds\"
	      if test -n "$last_robj"; then
	        eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
	      fi
	      func_append delfiles " $output"

	    else
	      output=
	    fi

	    if ${skipped_export-false}; then
	      func_verbose "generating symbol list for \`$libname.la'"
	      export_symbols="$output_objdir/$libname.exp"
	      $opt_dry_run || $RM $export_symbols
	      libobjs=$output
	      # Append the command to create the export file.
	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
	      if test -n "$last_robj"; then
		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
	      fi
	    fi

	    test -n "$save_libobjs" &&
	      func_verbose "creating a temporary reloadable object file: $output"

	    # Loop through the commands generated above and execute them.
	    save_ifs="$IFS"; IFS='~'
	    for cmd in $concat_cmds; do
	      IFS="$save_ifs"
	      $opt_silent || {
		  func_quote_for_expand "$cmd"
		  eval "func_echo $func_quote_for_expand_result"
	      }
	      $opt_dry_run || eval "$cmd" || {
		lt_exit=$?

		# Restore the uninstalled library and exit
		if test "$opt_mode" = relink; then
		  ( cd "$output_objdir" && \
		    $RM "${realname}T" && \
		    $MV "${realname}U" "$realname" )
		fi

		exit $lt_exit
	      }
	    done
	    IFS="$save_ifs"

	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
	    fi
	  fi

          if ${skipped_export-false}; then
	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
	      tmp_export_symbols="$export_symbols"
	      test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
	      $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
	    fi

	    if test -n "$orig_export_symbols"; then
	      # The given exports_symbols file has to be filtered, so filter it.
	      func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
	      # 's' commands which not all seds can handle. GNU sed should be fine
	      # though. Also, the filter scales superlinearly with the number of
	      # global variables. join(1) would be nice here, but unfortunately
	      # isn't a blessed tool.
	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
	      func_append delfiles " $export_symbols $output_objdir/$libname.filter"
	      export_symbols=$output_objdir/$libname.def
	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
	    fi
	  fi

	  libobjs=$output
	  # Restore the value of output.
	  output=$save_output

	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
	    test "X$libobjs" = "X " && libobjs=
	  fi
	  # Expand the library linking commands again to reset the
	  # value of $libobjs for piecewise linking.

	  # Do each of the archive commands.
	  if test "$module" = yes && test -n "$module_cmds" ; then
	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
	      cmds=$module_expsym_cmds
	    else
	      cmds=$module_cmds
	    fi
	  else
	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
	      cmds=$archive_expsym_cmds
	    else
	      cmds=$archive_cmds
	    fi
	  fi
	fi

	if test -n "$delfiles"; then
	  # Append the command to remove temporary files to $cmds.
	  eval cmds=\"\$cmds~\$RM $delfiles\"
	fi

	# Add any objects from preloaded convenience libraries
	if test -n "$dlprefiles"; then
	  gentop="$output_objdir/${outputname}x"
	  func_append generated " $gentop"

	  func_extract_archives $gentop $dlprefiles
	  func_append libobjs " $func_extract_archives_result"
	  test "X$libobjs" = "X " && libobjs=
	fi

	save_ifs="$IFS"; IFS='~'
	for cmd in $cmds; do
	  IFS="$save_ifs"
	  eval cmd=\"$cmd\"
	  $opt_silent || {
	    func_quote_for_expand "$cmd"
	    eval "func_echo $func_quote_for_expand_result"
	  }
	  $opt_dry_run || eval "$cmd" || {
	    lt_exit=$?

	    # Restore the uninstalled library and exit
	    if test "$opt_mode" = relink; then
	      ( cd "$output_objdir" && \
	        $RM "${realname}T" && \
		$MV "${realname}U" "$realname" )
	    fi

	    exit $lt_exit
	  }
	done
	IFS="$save_ifs"

	# Restore the uninstalled library and exit
	if test "$opt_mode" = relink; then
	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?

	  if test -n "$convenience"; then
	    if test -z "$whole_archive_flag_spec"; then
	      func_show_eval '${RM}r "$gentop"'
	    fi
	  fi

	  exit $EXIT_SUCCESS
	fi

	# Create links to the real library.
	for linkname in $linknames; do
	  if test "$realname" != "$linkname"; then
	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
	  fi
	done

	# If -module or -export-dynamic was specified, set the dlname.
	if test "$module" = yes || test "$export_dynamic" = yes; then
	  # On all known operating systems, these are identical.
	  dlname="$soname"
	fi
      fi
      ;;

    obj)
      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
	func_warning "\`-dlopen' is ignored for objects"
      fi

      case " $deplibs" in
      *\ -l* | *\ -L*)
	func_warning "\`-l' and \`-L' are ignored for objects" ;;
      esac

      test -n "$rpath" && \
	func_warning "\`-rpath' is ignored for objects"

      test -n "$xrpath" && \
	func_warning "\`-R' is ignored for objects"

      test -n "$vinfo" && \
	func_warning "\`-version-info' is ignored for objects"

      test -n "$release" && \
	func_warning "\`-release' is ignored for objects"

      case $output in
      *.lo)
	test -n "$objs$old_deplibs" && \
	  func_fatal_error "cannot build library object \`$output' from non-libtool objects"

	libobj=$output
	func_lo2o "$libobj"
	obj=$func_lo2o_result
	;;
      *)
	libobj=
	obj="$output"
	;;
      esac

      # Delete the old objects.
      $opt_dry_run || $RM $obj $libobj

      # Objects from convenience libraries.  This assumes
      # single-version convenience libraries.  Whenever we create
      # different ones for PIC/non-PIC, this we'll have to duplicate
      # the extraction.
      reload_conv_objs=
      gentop=
      # reload_cmds runs $LD directly, so let us get rid of
      # -Wl from whole_archive_flag_spec and hope we can get by with
      # turning comma into space..
      wl=

      if test -n "$convenience"; then
	if test -n "$whole_archive_flag_spec"; then
	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
	  reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
	else
	  gentop="$output_objdir/${obj}x"
	  func_append generated " $gentop"

	  func_extract_archives $gentop $convenience
	  reload_conv_objs="$reload_objs $func_extract_archives_result"
	fi
      fi

      # If we're not building shared, we need to use non_pic_objs
      test "$build_libtool_libs" != yes && libobjs="$non_pic_objects"

      # Create the old-style object.
      reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test

      output="$obj"
      func_execute_cmds "$reload_cmds" 'exit $?'

      # Exit if we aren't doing a library object file.
      if test -z "$libobj"; then
	if test -n "$gentop"; then
	  func_show_eval '${RM}r "$gentop"'
	fi

	exit $EXIT_SUCCESS
      fi

      if test "$build_libtool_libs" != yes; then
	if test -n "$gentop"; then
	  func_show_eval '${RM}r "$gentop"'
	fi

	# Create an invalid libtool object if no PIC, so that we don't
	# accidentally link it into a program.
	# $show "echo timestamp > $libobj"
	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
	exit $EXIT_SUCCESS
      fi

      if test -n "$pic_flag" || test "$pic_mode" != default; then
	# Only do commands if we really have different PIC objects.
	reload_objs="$libobjs $reload_conv_objs"
	output="$libobj"
	func_execute_cmds "$reload_cmds" 'exit $?'
      fi

      if test -n "$gentop"; then
	func_show_eval '${RM}r "$gentop"'
      fi

      exit $EXIT_SUCCESS
      ;;

    prog)
      case $host in
	*cygwin*) func_stripname '' '.exe' "$output"
	          output=$func_stripname_result.exe;;
      esac
      test -n "$vinfo" && \
	func_warning "\`-version-info' is ignored for programs"

      test -n "$release" && \
	func_warning "\`-release' is ignored for programs"

      test "$preload" = yes \
        && test "$dlopen_support" = unknown \
	&& test "$dlopen_self" = unknown \
	&& test "$dlopen_self_static" = unknown && \
	  func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."

      case $host in
      *-*-rhapsody* | *-*-darwin1.[012])
	# On Rhapsody replace the C library is the System framework
	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
	;;
      esac

      case $host in
      *-*-darwin*)
	# Don't allow lazy linking, it breaks C++ global constructors
	# But is supposedly fixed on 10.4 or later (yay!).
	if test "$tagname" = CXX ; then
	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
	    10.[0123])
	      func_append compile_command " ${wl}-bind_at_load"
	      func_append finalize_command " ${wl}-bind_at_load"
	    ;;
	  esac
	fi
	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	;;
      esac


      # move library search paths that coincide with paths to not yet
      # installed libraries to the beginning of the library search list
      new_libs=
      for path in $notinst_path; do
	case " $new_libs " in
	*" -L$path/$objdir "*) ;;
	*)
	  case " $compile_deplibs " in
	  *" -L$path/$objdir "*)
	    func_append new_libs " -L$path/$objdir" ;;
	  esac
	  ;;
	esac
      done
      for deplib in $compile_deplibs; do
	case $deplib in
	-L*)
	  case " $new_libs " in
	  *" $deplib "*) ;;
	  *) func_append new_libs " $deplib" ;;
	  esac
	  ;;
	*) func_append new_libs " $deplib" ;;
	esac
      done
      compile_deplibs="$new_libs"


      func_append compile_command " $compile_deplibs"
      func_append finalize_command " $finalize_deplibs"

      if test -n "$rpath$xrpath"; then
	# If the user specified any rpath flags, then add them.
	for libdir in $rpath $xrpath; do
	  # This is the magic to use -rpath.
	  case "$finalize_rpath " in
	  *" $libdir "*) ;;
	  *) func_append finalize_rpath " $libdir" ;;
	  esac
	done
      fi

      # Now hardcode the library paths
      rpath=
      hardcode_libdirs=
      for libdir in $compile_rpath $finalize_rpath; do
	if test -n "$hardcode_libdir_flag_spec"; then
	  if test -n "$hardcode_libdir_separator"; then
	    if test -z "$hardcode_libdirs"; then
	      hardcode_libdirs="$libdir"
	    else
	      # Just accumulate the unique libdirs.
	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
		;;
	      *)
		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
		;;
	      esac
	    fi
	  else
	    eval flag=\"$hardcode_libdir_flag_spec\"
	    func_append rpath " $flag"
	  fi
	elif test -n "$runpath_var"; then
	  case "$perm_rpath " in
	  *" $libdir "*) ;;
	  *) func_append perm_rpath " $libdir" ;;
	  esac
	fi
	case $host in
	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
	  testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
	  case :$dllsearchpath: in
	  *":$libdir:"*) ;;
	  ::) dllsearchpath=$libdir;;
	  *) func_append dllsearchpath ":$libdir";;
	  esac
	  case :$dllsearchpath: in
	  *":$testbindir:"*) ;;
	  ::) dllsearchpath=$testbindir;;
	  *) func_append dllsearchpath ":$testbindir";;
	  esac
	  ;;
	esac
      done
      # Substitute the hardcoded libdirs into the rpath.
      if test -n "$hardcode_libdir_separator" &&
	 test -n "$hardcode_libdirs"; then
	libdir="$hardcode_libdirs"
	eval rpath=\" $hardcode_libdir_flag_spec\"
      fi
      compile_rpath="$rpath"

      rpath=
      hardcode_libdirs=
      for libdir in $finalize_rpath; do
	if test -n "$hardcode_libdir_flag_spec"; then
	  if test -n "$hardcode_libdir_separator"; then
	    if test -z "$hardcode_libdirs"; then
	      hardcode_libdirs="$libdir"
	    else
	      # Just accumulate the unique libdirs.
	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
		;;
	      *)
		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
		;;
	      esac
	    fi
	  else
	    eval flag=\"$hardcode_libdir_flag_spec\"
	    func_append rpath " $flag"
	  fi
	elif test -n "$runpath_var"; then
	  case "$finalize_perm_rpath " in
	  *" $libdir "*) ;;
	  *) func_append finalize_perm_rpath " $libdir" ;;
	  esac
	fi
      done
      # Substitute the hardcoded libdirs into the rpath.
      if test -n "$hardcode_libdir_separator" &&
	 test -n "$hardcode_libdirs"; then
	libdir="$hardcode_libdirs"
	eval rpath=\" $hardcode_libdir_flag_spec\"
      fi
      finalize_rpath="$rpath"

      if test -n "$libobjs" && test "$build_old_libs" = yes; then
	# Transform all the library objects into standard objects.
	compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
	finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
      fi

      func_generate_dlsyms "$outputname" "@PROGRAM@" "no"

      # template prelinking step
      if test -n "$prelink_cmds"; then
	func_execute_cmds "$prelink_cmds" 'exit $?'
      fi

      wrappers_required=yes
      case $host in
      *cegcc* | *mingw32ce*)
        # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
        wrappers_required=no
        ;;
      *cygwin* | *mingw* )
        if test "$build_libtool_libs" != yes; then
          wrappers_required=no
        fi
        ;;
      *)
        if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
          wrappers_required=no
        fi
        ;;
      esac
      if test "$wrappers_required" = no; then
	# Replace the output file specification.
	compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
	link_command="$compile_command$compile_rpath"

	# We have no uninstalled library dependencies, so finalize right now.
	exit_status=0
	func_show_eval "$link_command" 'exit_status=$?'

	if test -n "$postlink_cmds"; then
	  func_to_tool_file "$output"
	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
	  func_execute_cmds "$postlink_cmds" 'exit $?'
	fi

	# Delete the generated files.
	if test -f "$output_objdir/${outputname}S.${objext}"; then
	  func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
	fi

	exit $exit_status
      fi

      if test -n "$compile_shlibpath$finalize_shlibpath"; then
	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
      fi
      if test -n "$finalize_shlibpath"; then
	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
      fi

      compile_var=
      finalize_var=
      if test -n "$runpath_var"; then
	if test -n "$perm_rpath"; then
	  # We should set the runpath_var.
	  rpath=
	  for dir in $perm_rpath; do
	    func_append rpath "$dir:"
	  done
	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
	fi
	if test -n "$finalize_perm_rpath"; then
	  # We should set the runpath_var.
	  rpath=
	  for dir in $finalize_perm_rpath; do
	    func_append rpath "$dir:"
	  done
	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
	fi
      fi

      if test "$no_install" = yes; then
	# We don't need to create a wrapper script.
	link_command="$compile_var$compile_command$compile_rpath"
	# Replace the output file specification.
	link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
	# Delete the old output file.
	$opt_dry_run || $RM $output
	# Link the executable and exit
	func_show_eval "$link_command" 'exit $?'

	if test -n "$postlink_cmds"; then
	  func_to_tool_file "$output"
	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
	  func_execute_cmds "$postlink_cmds" 'exit $?'
	fi

	exit $EXIT_SUCCESS
      fi

      if test "$hardcode_action" = relink; then
	# Fast installation is not supported
	link_command="$compile_var$compile_command$compile_rpath"
	relink_command="$finalize_var$finalize_command$finalize_rpath"

	func_warning "this platform does not like uninstalled shared libraries"
	func_warning "\`$output' will be relinked during installation"
      else
	if test "$fast_install" != no; then
	  link_command="$finalize_var$compile_command$finalize_rpath"
	  if test "$fast_install" = yes; then
	    relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
	  else
	    # fast_install is set to needless
	    relink_command=
	  fi
	else
	  link_command="$compile_var$compile_command$compile_rpath"
	  relink_command="$finalize_var$finalize_command$finalize_rpath"
	fi
      fi

      # Replace the output file specification.
      link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`

      # Delete the old output files.
      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname

      func_show_eval "$link_command" 'exit $?'

      if test -n "$postlink_cmds"; then
	func_to_tool_file "$output_objdir/$outputname"
	postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
	func_execute_cmds "$postlink_cmds" 'exit $?'
      fi

      # Now create the wrapper script.
      func_verbose "creating $output"

      # Quote the relink command for shipping.
      if test -n "$relink_command"; then
	# Preserve any variables that may affect compiler behavior
	for var in $variables_saved_for_relink; do
	  if eval test -z \"\${$var+set}\"; then
	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
	  elif eval var_value=\$$var; test -z "$var_value"; then
	    relink_command="$var=; export $var; $relink_command"
	  else
	    func_quote_for_eval "$var_value"
	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
	  fi
	done
	relink_command="(cd `pwd`; $relink_command)"
	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
      fi

      # Only actually do things if not in dry run mode.
      $opt_dry_run || {
	# win32 will think the script is a binary if it has
	# a .exe suffix, so we strip it off here.
	case $output in
	  *.exe) func_stripname '' '.exe' "$output"
	         output=$func_stripname_result ;;
	esac
	# test for cygwin because mv fails w/o .exe extensions
	case $host in
	  *cygwin*)
	    exeext=.exe
	    func_stripname '' '.exe' "$outputname"
	    outputname=$func_stripname_result ;;
	  *) exeext= ;;
	esac
	case $host in
	  *cygwin* | *mingw* )
	    func_dirname_and_basename "$output" "" "."
	    output_name=$func_basename_result
	    output_path=$func_dirname_result
	    cwrappersource="$output_path/$objdir/lt-$output_name.c"
	    cwrapper="$output_path/$output_name.exe"
	    $RM $cwrappersource $cwrapper
	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15

	    func_emit_cwrapperexe_src > $cwrappersource

	    # The wrapper executable is built using the $host compiler,
	    # because it contains $host paths and files. If cross-
	    # compiling, it, like the target executable, must be
	    # executed on the $host or under an emulation environment.
	    $opt_dry_run || {
	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
	      $STRIP $cwrapper
	    }

	    # Now, create the wrapper script for func_source use:
	    func_ltwrapper_scriptname $cwrapper
	    $RM $func_ltwrapper_scriptname_result
	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
	    $opt_dry_run || {
	      # note: this script will not be executed, so do not chmod.
	      if test "x$build" = "x$host" ; then
		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
	      else
		func_emit_wrapper no > $func_ltwrapper_scriptname_result
	      fi
	    }
	  ;;
	  * )
	    $RM $output
	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15

	    func_emit_wrapper no > $output
	    chmod +x $output
	  ;;
	esac
      }
      exit $EXIT_SUCCESS
      ;;
    esac

    # See if we need to build an old-fashioned archive.
    for oldlib in $oldlibs; do

      if test "$build_libtool_libs" = convenience; then
	oldobjs="$libobjs_save $symfileobj"
	addlibs="$convenience"
	build_libtool_libs=no
      else
	if test "$build_libtool_libs" = module; then
	  oldobjs="$libobjs_save"
	  build_libtool_libs=no
	else
	  oldobjs="$old_deplibs $non_pic_objects"
	  if test "$preload" = yes && test -f "$symfileobj"; then
	    func_append oldobjs " $symfileobj"
	  fi
	fi
	addlibs="$old_convenience"
      fi

      if test -n "$addlibs"; then
	gentop="$output_objdir/${outputname}x"
	func_append generated " $gentop"

	func_extract_archives $gentop $addlibs
	func_append oldobjs " $func_extract_archives_result"
      fi

      # Do each command in the archive commands.
      if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
	cmds=$old_archive_from_new_cmds
      else

	# Add any objects from preloaded convenience libraries
	if test -n "$dlprefiles"; then
	  gentop="$output_objdir/${outputname}x"
	  func_append generated " $gentop"

	  func_extract_archives $gentop $dlprefiles
	  func_append oldobjs " $func_extract_archives_result"
	fi

	# POSIX demands no paths to be encoded in archives.  We have
	# to avoid creating archives with duplicate basenames if we
	# might have to extract them afterwards, e.g., when creating a
	# static archive out of a convenience library, or when linking
	# the entirety of a libtool archive into another (currently
	# not supported by libtool).
	if (for obj in $oldobjs
	    do
	      func_basename "$obj"
	      $ECHO "$func_basename_result"
	    done | sort | sort -uc >/dev/null 2>&1); then
	  :
	else
	  echo "copying selected object files to avoid basename conflicts..."
	  gentop="$output_objdir/${outputname}x"
	  func_append generated " $gentop"
	  func_mkdir_p "$gentop"
	  save_oldobjs=$oldobjs
	  oldobjs=
	  counter=1
	  for obj in $save_oldobjs
	  do
	    func_basename "$obj"
	    objbase="$func_basename_result"
	    case " $oldobjs " in
	    " ") oldobjs=$obj ;;
	    *[\ /]"$objbase "*)
	      while :; do
		# Make sure we don't pick an alternate name that also
		# overlaps.
		newobj=lt$counter-$objbase
		func_arith $counter + 1
		counter=$func_arith_result
		case " $oldobjs " in
		*[\ /]"$newobj "*) ;;
		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
		esac
	      done
	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
	      func_append oldobjs " $gentop/$newobj"
	      ;;
	    *) func_append oldobjs " $obj" ;;
	    esac
	  done
	fi
	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
	tool_oldlib=$func_to_tool_file_result
	eval cmds=\"$old_archive_cmds\"

	func_len " $cmds"
	len=$func_len_result
	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
	  cmds=$old_archive_cmds
	elif test -n "$archiver_list_spec"; then
	  func_verbose "using command file archive linking..."
	  for obj in $oldobjs
	  do
	    func_to_tool_file "$obj"
	    $ECHO "$func_to_tool_file_result"
	  done > $output_objdir/$libname.libcmd
	  func_to_tool_file "$output_objdir/$libname.libcmd"
	  oldobjs=" $archiver_list_spec$func_to_tool_file_result"
	  cmds=$old_archive_cmds
	else
	  # the command line is too long to link in one step, link in parts
	  func_verbose "using piecewise archive linking..."
	  save_RANLIB=$RANLIB
	  RANLIB=:
	  objlist=
	  concat_cmds=
	  save_oldobjs=$oldobjs
	  oldobjs=
	  # Is there a better way of finding the last object in the list?
	  for obj in $save_oldobjs
	  do
	    last_oldobj=$obj
	  done
	  eval test_cmds=\"$old_archive_cmds\"
	  func_len " $test_cmds"
	  len0=$func_len_result
	  len=$len0
	  for obj in $save_oldobjs
	  do
	    func_len " $obj"
	    func_arith $len + $func_len_result
	    len=$func_arith_result
	    func_append objlist " $obj"
	    if test "$len" -lt "$max_cmd_len"; then
	      :
	    else
	      # the above command should be used before it gets too long
	      oldobjs=$objlist
	      if test "$obj" = "$last_oldobj" ; then
		RANLIB=$save_RANLIB
	      fi
	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
	      eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
	      objlist=
	      len=$len0
	    fi
	  done
	  RANLIB=$save_RANLIB
	  oldobjs=$objlist
	  if test "X$oldobjs" = "X" ; then
	    eval cmds=\"\$concat_cmds\"
	  else
	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
	  fi
	fi
      fi
      func_execute_cmds "$cmds" 'exit $?'
    done

    test -n "$generated" && \
      func_show_eval "${RM}r$generated"

    # Now create the libtool archive.
    case $output in
    *.la)
      old_library=
      test "$build_old_libs" = yes && old_library="$libname.$libext"
      func_verbose "creating $output"

      # Preserve any variables that may affect compiler behavior
      for var in $variables_saved_for_relink; do
	if eval test -z \"\${$var+set}\"; then
	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
	elif eval var_value=\$$var; test -z "$var_value"; then
	  relink_command="$var=; export $var; $relink_command"
	else
	  func_quote_for_eval "$var_value"
	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
	fi
      done
      # Quote the link command for shipping.
      relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
      if test "$hardcode_automatic" = yes ; then
	relink_command=
      fi

      # Only create the output if not a dry run.
      $opt_dry_run || {
	for installed in no yes; do
	  if test "$installed" = yes; then
	    if test -z "$install_libdir"; then
	      break
	    fi
	    output="$output_objdir/$outputname"i
	    # Replace all uninstalled libtool libraries with the installed ones
	    newdependency_libs=
	    for deplib in $dependency_libs; do
	      case $deplib in
	      *.la)
		func_basename "$deplib"
		name="$func_basename_result"
		func_resolve_sysroot "$deplib"
		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
		test -z "$libdir" && \
		  func_fatal_error "\`$deplib' is not a valid libtool archive"
		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
		;;
	      -L*)
		func_stripname -L '' "$deplib"
		func_replace_sysroot "$func_stripname_result"
		func_append newdependency_libs " -L$func_replace_sysroot_result"
		;;
	      -R*)
		func_stripname -R '' "$deplib"
		func_replace_sysroot "$func_stripname_result"
		func_append newdependency_libs " -R$func_replace_sysroot_result"
		;;
	      *) func_append newdependency_libs " $deplib" ;;
	      esac
	    done
	    dependency_libs="$newdependency_libs"
	    newdlfiles=

	    for lib in $dlfiles; do
	      case $lib in
	      *.la)
	        func_basename "$lib"
		name="$func_basename_result"
		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
		test -z "$libdir" && \
		  func_fatal_error "\`$lib' is not a valid libtool archive"
		func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
		;;
	      *) func_append newdlfiles " $lib" ;;
	      esac
	    done
	    dlfiles="$newdlfiles"
	    newdlprefiles=
	    for lib in $dlprefiles; do
	      case $lib in
	      *.la)
		# Only pass preopened files to the pseudo-archive (for
		# eventual linking with the app. that links it) if we
		# didn't already link the preopened objects directly into
		# the library:
		func_basename "$lib"
		name="$func_basename_result"
		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
		test -z "$libdir" && \
		  func_fatal_error "\`$lib' is not a valid libtool archive"
		func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
		;;
	      esac
	    done
	    dlprefiles="$newdlprefiles"
	  else
	    newdlfiles=
	    for lib in $dlfiles; do
	      case $lib in
		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
		*) abs=`pwd`"/$lib" ;;
	      esac
	      func_append newdlfiles " $abs"
	    done
	    dlfiles="$newdlfiles"
	    newdlprefiles=
	    for lib in $dlprefiles; do
	      case $lib in
		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
		*) abs=`pwd`"/$lib" ;;
	      esac
	      func_append newdlprefiles " $abs"
	    done
	    dlprefiles="$newdlprefiles"
	  fi
	  $RM $output
	  # place dlname in correct position for cygwin
	  # In fact, it would be nice if we could use this code for all target
	  # systems that can't hard-code library paths into their executables
	  # and that have no shared library path variable independent of PATH,
	  # but it turns out we can't easily determine that from inspecting
	  # libtool variables, so we have to hard-code the OSs to which it
	  # applies here; at the moment, that means platforms that use the PE
	  # object format with DLL files.  See the long comment at the top of
	  # tests/bindir.at for full details.
	  tdlname=$dlname
	  case $host,$output,$installed,$module,$dlname in
	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
	      # If a -bindir argument was supplied, place the dll there.
	      if test "x$bindir" != x ;
	      then
		func_relative_path "$install_libdir" "$bindir"
		tdlname=$func_relative_path_result$dlname
	      else
		# Otherwise fall back on heuristic.
		tdlname=../bin/$dlname
	      fi
	      ;;
	  esac
	  $ECHO > $output "\
# $outputname - a libtool library file
# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
#
# Please DO NOT delete this file!
# It is necessary for linking the library.

# The name that we can dlopen(3).
dlname='$tdlname'

# Names of this library.
library_names='$library_names'

# The name of the static archive.
old_library='$old_library'

# Linker flags that can not go in dependency_libs.
inherited_linker_flags='$new_inherited_linker_flags'

# Libraries that this one depends upon.
dependency_libs='$dependency_libs'

# Names of additional weak libraries provided by this library
weak_library_names='$weak_libs'

# Version information for $libname.
current=$current
age=$age
revision=$revision

# Is this an already installed library?
installed=$installed

# Should we warn about portability when linking against -modules?
shouldnotlink=$module

# Files to dlopen/dlpreopen
dlopen='$dlfiles'
dlpreopen='$dlprefiles'

# Directory that this library needs to be installed in:
libdir='$install_libdir'"
	  if test "$installed" = no && test "$need_relink" = yes; then
	    $ECHO >> $output "\
relink_command=\"$relink_command\""
	  fi
	done
      }

      # Do a symbolic link so that the libtool archive can be found in
      # LD_LIBRARY_PATH before the program is installed.
      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
      ;;
    esac
    exit $EXIT_SUCCESS
}

{ test "$opt_mode" = link || test "$opt_mode" = relink; } &&
    func_mode_link ${1+"$@"}


# func_mode_uninstall arg...
func_mode_uninstall ()
{
    $opt_debug
    RM="$nonopt"
    files=
    rmforce=
    exit_status=0

    # This variable tells wrapper scripts just to set variables rather
    # than running their programs.
    libtool_install_magic="$magic"

    for arg
    do
      case $arg in
      -f) func_append RM " $arg"; rmforce=yes ;;
      -*) func_append RM " $arg" ;;
      *) func_append files " $arg" ;;
      esac
    done

    test -z "$RM" && \
      func_fatal_help "you must specify an RM program"

    rmdirs=

    for file in $files; do
      func_dirname "$file" "" "."
      dir="$func_dirname_result"
      if test "X$dir" = X.; then
	odir="$objdir"
      else
	odir="$dir/$objdir"
      fi
      func_basename "$file"
      name="$func_basename_result"
      test "$opt_mode" = uninstall && odir="$dir"

      # Remember odir for removal later, being careful to avoid duplicates
      if test "$opt_mode" = clean; then
	case " $rmdirs " in
	  *" $odir "*) ;;
	  *) func_append rmdirs " $odir" ;;
	esac
      fi

      # Don't error if the file doesn't exist and rm -f was used.
      if { test -L "$file"; } >/dev/null 2>&1 ||
	 { test -h "$file"; } >/dev/null 2>&1 ||
	 test -f "$file"; then
	:
      elif test -d "$file"; then
	exit_status=1
	continue
      elif test "$rmforce" = yes; then
	continue
      fi

      rmfiles="$file"

      case $name in
      *.la)
	# Possibly a libtool archive, so verify it.
	if func_lalib_p "$file"; then
	  func_source $dir/$name

	  # Delete the libtool libraries and symlinks.
	  for n in $library_names; do
	    func_append rmfiles " $odir/$n"
	  done
	  test -n "$old_library" && func_append rmfiles " $odir/$old_library"

	  case "$opt_mode" in
	  clean)
	    case " $library_names " in
	    *" $dlname "*) ;;
	    *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
	    esac
	    test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
	    ;;
	  uninstall)
	    if test -n "$library_names"; then
	      # Do each command in the postuninstall commands.
	      func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
	    fi

	    if test -n "$old_library"; then
	      # Do each command in the old_postuninstall commands.
	      func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
	    fi
	    # FIXME: should reinstall the best remaining shared library.
	    ;;
	  esac
	fi
	;;

      *.lo)
	# Possibly a libtool object, so verify it.
	if func_lalib_p "$file"; then

	  # Read the .lo file
	  func_source $dir/$name

	  # Add PIC object to the list of files to remove.
	  if test -n "$pic_object" &&
	     test "$pic_object" != none; then
	    func_append rmfiles " $dir/$pic_object"
	  fi

	  # Add non-PIC object to the list of files to remove.
	  if test -n "$non_pic_object" &&
	     test "$non_pic_object" != none; then
	    func_append rmfiles " $dir/$non_pic_object"
	  fi
	fi
	;;

      *)
	if test "$opt_mode" = clean ; then
	  noexename=$name
	  case $file in
	  *.exe)
	    func_stripname '' '.exe' "$file"
	    file=$func_stripname_result
	    func_stripname '' '.exe' "$name"
	    noexename=$func_stripname_result
	    # $file with .exe has already been added to rmfiles,
	    # add $file without .exe
	    func_append rmfiles " $file"
	    ;;
	  esac
	  # Do a test to see if this is a libtool program.
	  if func_ltwrapper_p "$file"; then
	    if func_ltwrapper_executable_p "$file"; then
	      func_ltwrapper_scriptname "$file"
	      relink_command=
	      func_source $func_ltwrapper_scriptname_result
	      func_append rmfiles " $func_ltwrapper_scriptname_result"
	    else
	      relink_command=
	      func_source $dir/$noexename
	    fi

	    # note $name still contains .exe if it was in $file originally
	    # as does the version of $file that was added into $rmfiles
	    func_append rmfiles " $odir/$name $odir/${name}S.${objext}"
	    if test "$fast_install" = yes && test -n "$relink_command"; then
	      func_append rmfiles " $odir/lt-$name"
	    fi
	    if test "X$noexename" != "X$name" ; then
	      func_append rmfiles " $odir/lt-${noexename}.c"
	    fi
	  fi
	fi
	;;
      esac
      func_show_eval "$RM $rmfiles" 'exit_status=1'
    done

    # Try to remove the ${objdir}s in the directories where we deleted files
    for dir in $rmdirs; do
      if test -d "$dir"; then
	func_show_eval "rmdir $dir >/dev/null 2>&1"
      fi
    done

    exit $exit_status
}

{ test "$opt_mode" = uninstall || test "$opt_mode" = clean; } &&
    func_mode_uninstall ${1+"$@"}

test -z "$opt_mode" && {
  help="$generic_help"
  func_fatal_help "you must specify a MODE"
}

test -z "$exec_cmd" && \
  func_fatal_help "invalid operation mode \`$opt_mode'"

if test -n "$exec_cmd"; then
  eval exec "$exec_cmd"
  exit $EXIT_FAILURE
fi

exit $exit_status


# The TAGs below are defined such that we never get into a situation
# in which we disable both kinds of libraries.  Given conflicting
# choices, we go for a static library, that is the most portable,
# since we can't tell whether shared libraries were disabled because
# the user asked for that or because the platform doesn't support
# them.  This is particularly important on AIX, because we don't
# support having both static and shared libraries enabled at the same
# time on that platform, so we default to a shared-only configuration.
# If a disable-shared tag is given, we'll fallback to a static-only
# configuration.  But we'll never go from static-only to shared-only.

# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
build_libtool_libs=no
build_old_libs=yes
# ### END LIBTOOL TAG CONFIG: disable-shared

# ### BEGIN LIBTOOL TAG CONFIG: disable-static
build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
# ### END LIBTOOL TAG CONFIG: disable-static

# Local Variables:
# mode:shell-script
# sh-indentation:2
# End:
# vi:sw=2

gperftools-2.4/libtool0000755000000000000000000111050412454304641012031 00000000000000#! /bin/sh

# libtool - Provide generalized library-building support services.
# Generated automatically by config.status (gperftools) 2.4
# Libtool was configured on host chi:
# NOTE: Changes made to this file will be lost: look at ltmain.sh.
#
#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
#                 Foundation, Inc.
#   Written by Gordon Matzigkeit, 1996
#
#   This file is part of GNU Libtool.
#
# GNU Libtool is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# As a special exception to the GNU General Public License,
# if you distribute this file as part of a program or library that
# is built using GNU Libtool, you may include this file under the
# same distribution terms that you use for the rest of that program.
#
# GNU Libtool is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Libtool; see the file COPYING.  If not, a copy
# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
# obtained by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.


# The names of the tagged configurations supported by this script.
available_tags="CXX "

# ### BEGIN LIBTOOL CONFIG

# Which release of libtool.m4 was used?
macro_version=2.4.2
macro_revision=1.3337

# Whether or not to build shared libraries.
build_libtool_libs=yes

# Whether or not to build static libraries.
build_old_libs=yes

# What type of objects to build.
pic_mode=default

# Whether or not to optimize for fast installation.
fast_install=yes

# Shell to use when invoking shell scripts.
SHELL="/bin/sh"

# An echo program that protects backslashes.
ECHO="printf %s\\n"

# The PATH separator for the build system.
PATH_SEPARATOR=":"

# The host system.
host_alias=
host=x86_64-unknown-linux-gnu
host_os=linux-gnu

# The build system.
build_alias=
build=x86_64-unknown-linux-gnu
build_os=linux-gnu

# A sed program that does not truncate output.
SED="/bin/sed"

# Sed that helps us avoid accidentally triggering echo(1) options like -n.
Xsed="$SED -e 1s/^X//"

# A grep program that handles long lines.
GREP="/bin/grep"

# An ERE matcher.
EGREP="/bin/grep -E"

# A literal string matcher.
FGREP="/bin/grep -F"

# A BSD- or MS-compatible name lister.
NM="/usr/bin/nm -B"

# Whether we need soft or hard links.
LN_S="ln -s"

# What is the maximum length of a command?
max_cmd_len=1572864

# Object file suffix (normally "o").
objext=o

# Executable file suffix (normally "").
exeext=

# whether the shell understands "unset".
lt_unset=unset

# turn spaces into newlines.
SP2NL="tr \\040 \\012"

# turn newlines into spaces.
NL2SP="tr \\015\\012 \\040\\040"

# convert $build file names to $host format.
to_host_file_cmd=func_convert_file_noop

# convert $build files to toolchain format.
to_tool_file_cmd=func_convert_file_noop

# An object symbol dumper.
OBJDUMP="objdump"

# Method to check whether dependent libraries are shared objects.
deplibs_check_method="pass_all"

# Command to use when deplibs_check_method = "file_magic".
file_magic_cmd="\$MAGIC_CMD"

# How to find potential files when deplibs_check_method = "file_magic".
file_magic_glob=""

# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
want_nocaseglob="no"

# DLL creation program.
DLLTOOL="false"

# Command to associate shared and link libraries.
sharedlib_from_linklib_cmd="printf %s\\n"

# The archiver.
AR="ar"

# Flags to create an archive.
AR_FLAGS="cru"

# How to feed a file listing to the archiver.
archiver_list_spec="@"

# A symbol stripping program.
STRIP="strip"

# Commands used to install an old-style archive.
RANLIB="ranlib"
old_postinstall_cmds="chmod 644 \$oldlib~\$RANLIB \$tool_oldlib"
old_postuninstall_cmds=""

# Whether to use a lock for old archive extraction.
lock_old_archive_extraction=no

# A C compiler.
LTCC="gcc"

# LTCC compiler flags.
LTCFLAGS="-g -O2"

# Take the output of nm and produce a listing of raw symbols and C names.
global_symbol_pipe="sed -n -e 's/^.*[	 ]\\([ABCDGIRSTW][ABCDGIRSTW]*\\)[	 ][	 ]*\\([_A-Za-z][_A-Za-z0-9]*\\)\$/\\1 \\2 \\2/p' | sed '/ __gnu_lto/d'"

# Transform the output of nm in a proper C declaration.
global_symbol_to_cdecl="sed -n -e 's/^T .* \\(.*\\)\$/extern int \\1();/p' -e 's/^[ABCDGIRSTW]* .* \\(.*\\)\$/extern char \\1;/p'"

# Transform the output of nm in a C name address pair.
global_symbol_to_c_name_address="sed -n -e 's/^: \\([^ ]*\\)[ ]*\$/  {\\\"\\1\\\", (void *) 0},/p' -e 's/^[ABCDGIRSTW]* \\([^ ]*\\) \\([^ ]*\\)\$/  {\"\\2\", (void *) \\&\\2},/p'"

# Transform the output of nm in a C name address pair when lib prefix is needed.
global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \\([^ ]*\\)[ ]*\$/  {\\\"\\1\\\", (void *) 0},/p' -e 's/^[ABCDGIRSTW]* \\([^ ]*\\) \\(lib[^ ]*\\)\$/  {\"\\2\", (void *) \\&\\2},/p' -e 's/^[ABCDGIRSTW]* \\([^ ]*\\) \\([^ ]*\\)\$/  {\"lib\\2\", (void *) \\&\\2},/p'"

# Specify filename containing input files for $NM.
nm_file_list_spec="@"

# The root where to search for dependent libraries,and in which our libraries should be installed.
lt_sysroot=

# The name of the directory that contains temporary libtool files.
objdir=.libs

# Used to examine libraries when file_magic_cmd begins with "file".
MAGIC_CMD=file

# Must we lock files when doing compilation?
need_locks="no"

# Manifest tool.
MANIFEST_TOOL=":"

# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
DSYMUTIL=""

# Tool to change global to local symbols on Mac OS X.
NMEDIT=""

# Tool to manipulate fat objects and archives on Mac OS X.
LIPO=""

# ldd/readelf like tool for Mach-O binaries on Mac OS X.
OTOOL=""

# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
OTOOL64=""

# Old archive suffix (normally "a").
libext=a

# Shared library suffix (normally ".so").
shrext_cmds=".so"

# The commands to extract the exported symbol list from a shared archive.
extract_expsyms_cmds=""

# Variables whose values should be saved in libtool wrapper scripts and
# restored at link time.
variables_saved_for_relink="PATH LD_LIBRARY_PATH LD_RUN_PATH GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"

# Do we need the "lib" prefix for modules?
need_lib_prefix=no

# Do we need a version for libraries?
need_version=no

# Library versioning type.
version_type=linux

# Shared library runtime path variable.
runpath_var=LD_RUN_PATH

# Shared library path variable.
shlibpath_var=LD_LIBRARY_PATH

# Is shlibpath searched before the hard-coded library search path?
shlibpath_overrides_runpath=no

# Format of library name prefix.
libname_spec="lib\$name"

# List of archive names.  First name is the real one, the rest are links.
# The last name is the one that the linker finds with -lNAME
library_names_spec="\${libname}\${release}\${shared_ext}\$versuffix \${libname}\${release}\${shared_ext}\$major \$libname\${shared_ext}"

# The coded name of the library, if different from the real name.
soname_spec="\${libname}\${release}\${shared_ext}\$major"

# Permission mode override for installation of shared libraries.
install_override_mode=""

# Command to use after installation of a shared archive.
postinstall_cmds=""

# Command to use after uninstallation of a shared archive.
postuninstall_cmds=""

# Commands used to finish a libtool library installation in a directory.
finish_cmds="PATH=\\\"\\\$PATH:/sbin\\\" ldconfig -n \$libdir"

# As "finish_cmds", except a single script fragment to be evaled but
# not shown.
finish_eval=""

# Whether we should hardcode library paths into libraries.
hardcode_into_libs=yes

# Compile-time system search path for libraries.
sys_lib_search_path_spec="/usr/lib/gcc/x86_64-linux-gnu/4.9 /usr/lib/x86_64-linux-gnu /usr/lib /lib/x86_64-linux-gnu /lib "

# Run-time system search path for libraries.
sys_lib_dlsearch_path_spec="/lib /usr/lib /usr/lib/x86_64-linux-gnu/libfakeroot /lib/i386-linux-gnu /usr/lib/i386-linux-gnu /lib/i586-linux-gnu /usr/lib/i586-linux-gnu /usr/local/lib /lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu /lib32 /usr/lib32 /libx32 /usr/libx32 "

# Whether dlopen is supported.
dlopen_support=unknown

# Whether dlopen of programs is supported.
dlopen_self=unknown

# Whether dlopen of statically linked programs is supported.
dlopen_self_static=unknown

# Commands to strip libraries.
old_striplib="strip --strip-debug"
striplib="strip --strip-unneeded"


# The linker used to build libraries.
LD="/usr/bin/ld -m elf_x86_64"

# How to create reloadable object files.
reload_flag=" -r"
reload_cmds="\$LD\$reload_flag -o \$output\$reload_objs"

# Commands used to build an old-style archive.
old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$tool_oldlib"

# A language specific compiler.
CC="gcc"

# Is the compiler the GNU compiler?
with_gcc=yes

# Compiler flag to turn off builtin functions.
no_builtin_flag=" -fno-builtin"

# Additional compiler flags for building library objects.
pic_flag=" -fPIC -DPIC"

# How to pass a linker flag through the compiler.
wl="-Wl,"

# Compiler flag to prevent dynamic linking.
link_static_flag="-static"

# Does compiler simultaneously support -c and -o options?
compiler_c_o="yes"

# Whether or not to add -lc for building shared libraries.
build_libtool_need_lc=no

# Whether or not to disallow shared libs when runtime libs are static.
allow_libtool_libs_with_static_runtimes=no

# Compiler flag to allow reflexive dlopens.
export_dynamic_flag_spec="\${wl}--export-dynamic"

# Compiler flag to generate shared objects directly from archives.
whole_archive_flag_spec="\${wl}--whole-archive\$convenience \${wl}--no-whole-archive"

# Whether the compiler copes with passing no objects directly.
compiler_needs_object="no"

# Create an old-style archive from a shared archive.
old_archive_from_new_cmds=""

# Create a temporary old-style archive to link instead of a shared archive.
old_archive_from_expsyms_cmds=""

# Commands used to build a shared archive.
archive_cmds="\$CC -shared \$pic_flag \$libobjs \$deplibs \$compiler_flags \${wl}-soname \$wl\$soname -o \$lib"
archive_expsym_cmds="echo \\\"{ global:\\\" > \$output_objdir/\$libname.ver~
	    cat \$export_symbols | sed -e \\\"s/\\\\(.*\\\\)/\\\\1;/\\\" >> \$output_objdir/\$libname.ver~
	    echo \\\"local: *; };\\\" >> \$output_objdir/\$libname.ver~
	    \$CC -shared \$pic_flag \$libobjs \$deplibs \$compiler_flags \${wl}-soname \$wl\$soname \${wl}-version-script \${wl}\$output_objdir/\$libname.ver -o \$lib"

# Commands used to build a loadable module if different from building
# a shared archive.
module_cmds=""
module_expsym_cmds=""

# Whether we are building with GNU ld or not.
with_gnu_ld="yes"

# Flag that allows shared libraries with undefined symbols to be built.
allow_undefined_flag=""

# Flag that enforces no undefined symbols.
no_undefined_flag=""

# Flag to hardcode $libdir into a binary during linking.
# This must work even if $libdir does not exist
hardcode_libdir_flag_spec="\${wl}-rpath \${wl}\$libdir"

# Whether we need a single "-rpath" flag with a separated argument.
hardcode_libdir_separator=""

# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
# DIR into the resulting binary.
hardcode_direct=no

# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
# DIR into the resulting binary and the resulting library dependency is
# "absolute",i.e impossible to change by setting ${shlibpath_var} if the
# library is relocated.
hardcode_direct_absolute=no

# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
# into the resulting binary.
hardcode_minus_L=no

# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
# into the resulting binary.
hardcode_shlibpath_var=unsupported

# Set to "yes" if building a shared library automatically hardcodes DIR
# into the library and all subsequent libraries and executables linked
# against it.
hardcode_automatic=no

# Set to yes if linker adds runtime paths of dependent libraries
# to runtime path list.
inherit_rpath=no

# Whether libtool must link a program against all its dependency libraries.
link_all_deplibs=no

# Set to "yes" if exported symbols are required.
always_export_symbols=no

# The commands to list exported symbols.
export_symbols_cmds="\$NM \$libobjs \$convenience | \$global_symbol_pipe | \$SED 's/.* //' | sort | uniq > \$export_symbols"

# Symbols that should not be listed in the preloaded symbols.
exclude_expsyms="_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*"

# Symbols that must always be exported.
include_expsyms=""

# Commands necessary for linking programs (against libraries) with templates.
prelink_cmds=""

# Commands necessary for finishing linking programs.
postlink_cmds=""

# Specify filename containing input files.
file_list_spec=""

# How to hardcode a shared library path into an executable.
hardcode_action=immediate

# The directories searched by this compiler when creating a shared library.
compiler_lib_search_dirs=""

# Dependencies to place before and after the objects being linked to
# create a shared library.
predep_objects=""
postdep_objects=""
predeps=""
postdeps=""

# The library search path used internally by the compiler when linking
# a shared library.
compiler_lib_search_path=""

# ### END LIBTOOL CONFIG


# libtool (GNU libtool) 2.4.2
# Written by Gordon Matzigkeit , 1996

# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
# This is free software; see the source for copying conditions.  There is NO
# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

# GNU Libtool is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# As a special exception to the GNU General Public License,
# if you distribute this file as part of a program or library that
# is built using GNU Libtool, you may include this file under the
# same distribution terms that you use for the rest of that program.
#
# GNU Libtool is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Libtool; see the file COPYING.  If not, a copy
# can be downloaded from http://www.gnu.org/licenses/gpl.html,
# or obtained by writing to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

# Usage: $progname [OPTION]... [MODE-ARG]...
#
# Provide generalized library-building support services.
#
#       --config             show all configuration variables
#       --debug              enable verbose shell tracing
#   -n, --dry-run            display commands without modifying any files
#       --features           display basic configuration information and exit
#       --mode=MODE          use operation mode MODE
#       --preserve-dup-deps  don't remove duplicate dependency libraries
#       --quiet, --silent    don't print informational messages
#       --no-quiet, --no-silent
#                            print informational messages (default)
#       --no-warn            don't display warning messages
#       --tag=TAG            use configuration variables from tag TAG
#   -v, --verbose            print more informational messages than default
#       --no-verbose         don't print the extra informational messages
#       --version            print version information
#   -h, --help, --help-all   print short, long, or detailed help message
#
# MODE must be one of the following:
#
#         clean              remove files from the build directory
#         compile            compile a source file into a libtool object
#         execute            automatically set library path, then run a program
#         finish             complete the installation of libtool libraries
#         install            install libraries or executables
#         link               create a library or an executable
#         uninstall          remove libraries from an installed directory
#
# MODE-ARGS vary depending on the MODE.  When passed as first option,
# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that.
# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
#
# When reporting a bug, please describe a test case to reproduce it and
# include the following information:
#
#         host-triplet:	$host
#         shell:		$SHELL
#         compiler:		$LTCC
#         compiler flags:		$LTCFLAGS
#         linker:		$LD (gnu? $with_gnu_ld)
#         $progname:	(GNU libtool) 2.4.2 Debian-2.4.2-1.11
#         automake:	$automake_version
#         autoconf:	$autoconf_version
#
# Report bugs to .
# GNU libtool home page: .
# General help using GNU software: .

PROGRAM=libtool
PACKAGE=libtool
VERSION="2.4.2 Debian-2.4.2-1.11"
TIMESTAMP=""
package_revision=1.3337

# Be Bourne compatible
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
fi
BIN_SH=xpg4; export BIN_SH # for Tru64
DUALCASE=1; export DUALCASE # for MKS sh

# A function that is used when there is no print builtin or printf.
func_fallback_echo ()
{
  eval 'cat <<_LTECHO_EOF
$1
_LTECHO_EOF'
}

# NLS nuisances: We save the old values to restore during execute mode.
lt_user_locale=
lt_safe_locale=
for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
do
  eval "if test \"\${$lt_var+set}\" = set; then
          save_$lt_var=\$$lt_var
          $lt_var=C
	  export $lt_var
	  lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
	  lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
	fi"
done
LC_ALL=C
LANGUAGE=C
export LANGUAGE LC_ALL

$lt_unset CDPATH


# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
# is ksh but when the shell is invoked as "sh" and the current value of
# the _XPG environment variable is not equal to 1 (one), the special
# positional parameter $0, within a function call, is the name of the
# function.
progpath="$0"



: ${CP="cp -f"}
test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
: ${MAKE="make"}
: ${MKDIR="mkdir"}
: ${MV="mv -f"}
: ${RM="rm -f"}
: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
: ${Xsed="$SED -e 1s/^X//"}

# Global variables:
EXIT_SUCCESS=0
EXIT_FAILURE=1
EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.

exit_status=$EXIT_SUCCESS

# Make sure IFS has a sensible default
lt_nl='
'
IFS=" 	$lt_nl"

dirname="s,/[^/]*$,,"
basename="s,^.*/,,"

# func_dirname file append nondir_replacement
# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
# otherwise set result to NONDIR_REPLACEMENT.
func_dirname ()
{
    case ${1} in
      */*) func_dirname_result="${1%/*}${2}" ;;
      *  ) func_dirname_result="${3}" ;;
    esac
} # Extended-shell func_dirname implementation


# func_basename file
func_basename ()
{
    func_basename_result="${1##*/}"
} # Extended-shell func_basename implementation


# func_dirname_and_basename file append nondir_replacement
# perform func_basename and func_dirname in a single function
# call:
#   dirname:  Compute the dirname of FILE.  If nonempty,
#             add APPEND to the result, otherwise set result
#             to NONDIR_REPLACEMENT.
#             value returned in "$func_dirname_result"
#   basename: Compute filename of FILE.
#             value retuned in "$func_basename_result"
# Implementation must be kept synchronized with func_dirname
# and func_basename. For efficiency, we do not delegate to
# those functions but instead duplicate the functionality here.
func_dirname_and_basename ()
{
    case ${1} in
      */*) func_dirname_result="${1%/*}${2}" ;;
      *  ) func_dirname_result="${3}" ;;
    esac
    func_basename_result="${1##*/}"
} # Extended-shell func_dirname_and_basename implementation


# func_stripname prefix suffix name
# strip PREFIX and SUFFIX off of NAME.
# PREFIX and SUFFIX must not contain globbing or regex special
# characters, hashes, percent signs, but SUFFIX may contain a leading
# dot (in which case that matches only a dot).
# func_strip_suffix prefix name
func_stripname ()
{
    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
    # positional parameters, so assign one to ordinary parameter first.
    func_stripname_result=${3}
    func_stripname_result=${func_stripname_result#"${1}"}
    func_stripname_result=${func_stripname_result%"${2}"}
} # Extended-shell func_stripname implementation


# These SED scripts presuppose an absolute path with a trailing slash.
pathcar='s,^/\([^/]*\).*$,\1,'
pathcdr='s,^/[^/]*,,'
removedotparts=':dotsl
		s@/\./@/@g
		t dotsl
		s,/\.$,/,'
collapseslashes='s@/\{1,\}@/@g'
finalslash='s,/*$,/,'

# func_normal_abspath PATH
# Remove doubled-up and trailing slashes, "." path components,
# and cancel out any ".." path components in PATH after making
# it an absolute path.
#             value returned in "$func_normal_abspath_result"
func_normal_abspath ()
{
  # Start from root dir and reassemble the path.
  func_normal_abspath_result=
  func_normal_abspath_tpath=$1
  func_normal_abspath_altnamespace=
  case $func_normal_abspath_tpath in
    "")
      # Empty path, that just means $cwd.
      func_stripname '' '/' "`pwd`"
      func_normal_abspath_result=$func_stripname_result
      return
    ;;
    # The next three entries are used to spot a run of precisely
    # two leading slashes without using negated character classes;
    # we take advantage of case's first-match behaviour.
    ///*)
      # Unusual form of absolute path, do nothing.
    ;;
    //*)
      # Not necessarily an ordinary path; POSIX reserves leading '//'
      # and for example Cygwin uses it to access remote file shares
      # over CIFS/SMB, so we conserve a leading double slash if found.
      func_normal_abspath_altnamespace=/
    ;;
    /*)
      # Absolute path, do nothing.
    ;;
    *)
      # Relative path, prepend $cwd.
      func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
    ;;
  esac
  # Cancel out all the simple stuff to save iterations.  We also want
  # the path to end with a slash for ease of parsing, so make sure
  # there is one (and only one) here.
  func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
        -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"`
  while :; do
    # Processed it all yet?
    if test "$func_normal_abspath_tpath" = / ; then
      # If we ascended to the root using ".." the result may be empty now.
      if test -z "$func_normal_abspath_result" ; then
        func_normal_abspath_result=/
      fi
      break
    fi
    func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
        -e "$pathcar"`
    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
        -e "$pathcdr"`
    # Figure out what to do with it
    case $func_normal_abspath_tcomponent in
      "")
        # Trailing empty path component, ignore it.
      ;;
      ..)
        # Parent dir; strip last assembled component from result.
        func_dirname "$func_normal_abspath_result"
        func_normal_abspath_result=$func_dirname_result
      ;;
      *)
        # Actual path component, append it.
        func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent
      ;;
    esac
  done
  # Restore leading double-slash if one was found on entry.
  func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
}

# func_relative_path SRCDIR DSTDIR
# generates a relative path from SRCDIR to DSTDIR, with a trailing
# slash if non-empty, suitable for immediately appending a filename
# without needing to append a separator.
#             value returned in "$func_relative_path_result"
func_relative_path ()
{
  func_relative_path_result=
  func_normal_abspath "$1"
  func_relative_path_tlibdir=$func_normal_abspath_result
  func_normal_abspath "$2"
  func_relative_path_tbindir=$func_normal_abspath_result

  # Ascend the tree starting from libdir
  while :; do
    # check if we have found a prefix of bindir
    case $func_relative_path_tbindir in
      $func_relative_path_tlibdir)
        # found an exact match
        func_relative_path_tcancelled=
        break
        ;;
      $func_relative_path_tlibdir*)
        # found a matching prefix
        func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
        func_relative_path_tcancelled=$func_stripname_result
        if test -z "$func_relative_path_result"; then
          func_relative_path_result=.
        fi
        break
        ;;
      *)
        func_dirname $func_relative_path_tlibdir
        func_relative_path_tlibdir=${func_dirname_result}
        if test "x$func_relative_path_tlibdir" = x ; then
          # Have to descend all the way to the root!
          func_relative_path_result=../$func_relative_path_result
          func_relative_path_tcancelled=$func_relative_path_tbindir
          break
        fi
        func_relative_path_result=../$func_relative_path_result
        ;;
    esac
  done

  # Now calculate path; take care to avoid doubling-up slashes.
  func_stripname '' '/' "$func_relative_path_result"
  func_relative_path_result=$func_stripname_result
  func_stripname '/' '/' "$func_relative_path_tcancelled"
  if test "x$func_stripname_result" != x ; then
    func_relative_path_result=${func_relative_path_result}/${func_stripname_result}
  fi

  # Normalisation. If bindir is libdir, return empty string,
  # else relative path ending with a slash; either way, target
  # file name can be directly appended.
  if test ! -z "$func_relative_path_result"; then
    func_stripname './' '' "$func_relative_path_result/"
    func_relative_path_result=$func_stripname_result
  fi
}

# The name of this program:
func_dirname_and_basename "$progpath"
progname=$func_basename_result

# Make sure we have an absolute path for reexecution:
case $progpath in
  [\\/]*|[A-Za-z]:\\*) ;;
  *[\\/]*)
     progdir=$func_dirname_result
     progdir=`cd "$progdir" && pwd`
     progpath="$progdir/$progname"
     ;;
  *)
     save_IFS="$IFS"
     IFS=${PATH_SEPARATOR-:}
     for progdir in $PATH; do
       IFS="$save_IFS"
       test -x "$progdir/$progname" && break
     done
     IFS="$save_IFS"
     test -n "$progdir" || progdir=`pwd`
     progpath="$progdir/$progname"
     ;;
esac

# Sed substitution that helps us do robust quoting.  It backslashifies
# metacharacters that are still active within double-quoted strings.
Xsed="${SED}"' -e 1s/^X//'
sed_quote_subst='s/\([`"$\\]\)/\\\1/g'

# Same as above, but do not quote variable references.
double_quote_subst='s/\(["`\\]\)/\\\1/g'

# Sed substitution that turns a string into a regex matching for the
# string literally.
sed_make_literal_regex='s,[].[^$\\*\/],\\&,g'

# Sed substitution that converts a w32 file name or path
# which contains forward slashes, into one that contains
# (escaped) backslashes.  A very naive implementation.
lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'

# Re-`\' parameter expansions in output of double_quote_subst that were
# `\'-ed in input to the same.  If an odd number of `\' preceded a '$'
# in input to double_quote_subst, that '$' was protected from expansion.
# Since each input `\' is now two `\'s, look for any number of runs of
# four `\'s followed by two `\'s and then a '$'.  `\' that '$'.
bs='\\'
bs2='\\\\'
bs4='\\\\\\\\'
dollar='\$'
sed_double_backslash="\
  s/$bs4/&\\
/g
  s/^$bs2$dollar/$bs&/
  s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
  s/\n//g"

# Standard options:
opt_dry_run=false
opt_help=false
opt_quiet=false
opt_verbose=false
opt_warning=:

# func_echo arg...
# Echo program name prefixed message, along with the current mode
# name if it has been set yet.
func_echo ()
{
    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
}

# func_verbose arg...
# Echo program name prefixed message in verbose mode only.
func_verbose ()
{
    $opt_verbose && func_echo ${1+"$@"}

    # A bug in bash halts the script if the last line of a function
    # fails when set -e is in force, so we need another command to
    # work around that:
    :
}

# func_echo_all arg...
# Invoke $ECHO with all args, space-separated.
func_echo_all ()
{
    $ECHO "$*"
}

# func_error arg...
# Echo program name prefixed message to standard error.
func_error ()
{
    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
}

# func_warning arg...
# Echo program name prefixed warning message to standard error.
func_warning ()
{
    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2

    # bash bug again:
    :
}

# func_fatal_error arg...
# Echo program name prefixed message to standard error, and exit.
func_fatal_error ()
{
    func_error ${1+"$@"}
    exit $EXIT_FAILURE
}

# func_fatal_help arg...
# Echo program name prefixed message to standard error, followed by
# a help hint, and exit.
func_fatal_help ()
{
    func_error ${1+"$@"}
    func_fatal_error "$help"
}
help="Try \`$progname --help' for more information."  ## default


# func_grep expression filename
# Check whether EXPRESSION matches any line of FILENAME, without output.
func_grep ()
{
    $GREP "$1" "$2" >/dev/null 2>&1
}


# func_mkdir_p directory-path
# Make sure the entire path to DIRECTORY-PATH is available.
func_mkdir_p ()
{
    my_directory_path="$1"
    my_dir_list=

    if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then

      # Protect directory names starting with `-'
      case $my_directory_path in
        -*) my_directory_path="./$my_directory_path" ;;
      esac

      # While some portion of DIR does not yet exist...
      while test ! -d "$my_directory_path"; do
        # ...make a list in topmost first order.  Use a colon delimited
	# list incase some portion of path contains whitespace.
        my_dir_list="$my_directory_path:$my_dir_list"

        # If the last portion added has no slash in it, the list is done
        case $my_directory_path in */*) ;; *) break ;; esac

        # ...otherwise throw away the child directory and loop
        my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"`
      done
      my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'`

      save_mkdir_p_IFS="$IFS"; IFS=':'
      for my_dir in $my_dir_list; do
	IFS="$save_mkdir_p_IFS"
        # mkdir can fail with a `File exist' error if two processes
        # try to create one of the directories concurrently.  Don't
        # stop in that case!
        $MKDIR "$my_dir" 2>/dev/null || :
      done
      IFS="$save_mkdir_p_IFS"

      # Bail out if we (or some other process) failed to create a directory.
      test -d "$my_directory_path" || \
        func_fatal_error "Failed to create \`$1'"
    fi
}


# func_mktempdir [string]
# Make a temporary directory that won't clash with other running
# libtool processes, and avoids race conditions if possible.  If
# given, STRING is the basename for that directory.
func_mktempdir ()
{
    my_template="${TMPDIR-/tmp}/${1-$progname}"

    if test "$opt_dry_run" = ":"; then
      # Return a directory name, but don't create it in dry-run mode
      my_tmpdir="${my_template}-$$"
    else

      # If mktemp works, use that first and foremost
      my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`

      if test ! -d "$my_tmpdir"; then
        # Failing that, at least try and use $RANDOM to avoid a race
        my_tmpdir="${my_template}-${RANDOM-0}$$"

        save_mktempdir_umask=`umask`
        umask 0077
        $MKDIR "$my_tmpdir"
        umask $save_mktempdir_umask
      fi

      # If we're not in dry-run mode, bomb out on failure
      test -d "$my_tmpdir" || \
        func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
    fi

    $ECHO "$my_tmpdir"
}


# func_quote_for_eval arg
# Aesthetically quote ARG to be evaled later.
# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
# is double-quoted, suitable for a subsequent eval, whereas
# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
# which are still active within double quotes backslashified.
func_quote_for_eval ()
{
    case $1 in
      *[\\\`\"\$]*)
	func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;;
      *)
        func_quote_for_eval_unquoted_result="$1" ;;
    esac

    case $func_quote_for_eval_unquoted_result in
      # Double-quote args containing shell metacharacters to delay
      # word splitting, command substitution and and variable
      # expansion for a subsequent eval.
      # Many Bourne shells cannot handle close brackets correctly
      # in scan sets, so we specify it separately.
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
        func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
        ;;
      *)
        func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
    esac
}


# func_quote_for_expand arg
# Aesthetically quote ARG to be evaled later; same as above,
# but do not quote variable references.
func_quote_for_expand ()
{
    case $1 in
      *[\\\`\"]*)
	my_arg=`$ECHO "$1" | $SED \
	    -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
      *)
        my_arg="$1" ;;
    esac

    case $my_arg in
      # Double-quote args containing shell metacharacters to delay
      # word splitting and command substitution for a subsequent eval.
      # Many Bourne shells cannot handle close brackets correctly
      # in scan sets, so we specify it separately.
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
        my_arg="\"$my_arg\""
        ;;
    esac

    func_quote_for_expand_result="$my_arg"
}


# func_show_eval cmd [fail_exp]
# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
# is given, then evaluate it.
func_show_eval ()
{
    my_cmd="$1"
    my_fail_exp="${2-:}"

    ${opt_silent-false} || {
      func_quote_for_expand "$my_cmd"
      eval "func_echo $func_quote_for_expand_result"
    }

    if ${opt_dry_run-false}; then :; else
      eval "$my_cmd"
      my_status=$?
      if test "$my_status" -eq 0; then :; else
	eval "(exit $my_status); $my_fail_exp"
      fi
    fi
}


# func_show_eval_locale cmd [fail_exp]
# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
# is given, then evaluate it.  Use the saved locale for evaluation.
func_show_eval_locale ()
{
    my_cmd="$1"
    my_fail_exp="${2-:}"

    ${opt_silent-false} || {
      func_quote_for_expand "$my_cmd"
      eval "func_echo $func_quote_for_expand_result"
    }

    if ${opt_dry_run-false}; then :; else
      eval "$lt_user_locale
	    $my_cmd"
      my_status=$?
      eval "$lt_safe_locale"
      if test "$my_status" -eq 0; then :; else
	eval "(exit $my_status); $my_fail_exp"
      fi
    fi
}

# func_tr_sh
# Turn $1 into a string suitable for a shell variable name.
# Result is stored in $func_tr_sh_result.  All characters
# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
# if $1 begins with a digit, a '_' is prepended as well.
func_tr_sh ()
{
  case $1 in
  [0-9]* | *[!a-zA-Z0-9_]*)
    func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'`
    ;;
  * )
    func_tr_sh_result=$1
    ;;
  esac
}


# func_version
# Echo version message to standard output and exit.
func_version ()
{
    $opt_debug

    $SED -n '/(C)/!b go
	:more
	/\./!{
	  N
	  s/\n# / /
	  b more
	}
	:go
	/^# '$PROGRAM' (GNU /,/# warranty; / {
        s/^# //
	s/^# *$//
        s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
        p
     }' < "$progpath"
     exit $?
}

# func_usage
# Echo short help message to standard output and exit.
func_usage ()
{
    $opt_debug

    $SED -n '/^# Usage:/,/^#  *.*--help/ {
        s/^# //
	s/^# *$//
	s/\$progname/'$progname'/
	p
    }' < "$progpath"
    echo
    $ECHO "run \`$progname --help | more' for full usage"
    exit $?
}

# func_help [NOEXIT]
# Echo long help message to standard output and exit,
# unless 'noexit' is passed as argument.
func_help ()
{
    $opt_debug

    $SED -n '/^# Usage:/,/# Report bugs to/ {
	:print
        s/^# //
	s/^# *$//
	s*\$progname*'$progname'*
	s*\$host*'"$host"'*
	s*\$SHELL*'"$SHELL"'*
	s*\$LTCC*'"$LTCC"'*
	s*\$LTCFLAGS*'"$LTCFLAGS"'*
	s*\$LD*'"$LD"'*
	s/\$with_gnu_ld/'"$with_gnu_ld"'/
	s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/
	s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/
	p
	d
     }
     /^# .* home page:/b print
     /^# General help using/b print
     ' < "$progpath"
    ret=$?
    if test -z "$1"; then
      exit $ret
    fi
}

# func_missing_arg argname
# Echo program name prefixed message to standard error and set global
# exit_cmd.
func_missing_arg ()
{
    $opt_debug

    func_error "missing argument for $1."
    exit_cmd=exit
}


# func_split_short_opt shortopt
# Set func_split_short_opt_name and func_split_short_opt_arg shell
# variables after splitting SHORTOPT after the 2nd character.
func_split_short_opt ()
{
    func_split_short_opt_arg=${1#??}
    func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
} # Extended-shell func_split_short_opt implementation


# func_split_long_opt longopt
# Set func_split_long_opt_name and func_split_long_opt_arg shell
# variables after splitting LONGOPT at the `=' sign.
func_split_long_opt ()
{
    func_split_long_opt_name=${1%%=*}
    func_split_long_opt_arg=${1#*=}
} # Extended-shell func_split_long_opt implementation

exit_cmd=:





magic="%%%MAGIC variable%%%"
magic_exe="%%%MAGIC EXE variable%%%"

# Global variables.
nonopt=
preserve_args=
lo2o="s/\\.lo\$/.${objext}/"
o2lo="s/\\.${objext}\$/.lo/"
extracted_archives=
extracted_serial=0

# If this variable is set in any of the actions, the command in it
# will be execed at the end.  This prevents here-documents from being
# left over by shells.
exec_cmd=

# func_append var value
# Append VALUE to the end of shell variable VAR.
func_append ()
{
    eval "${1}+=\${2}"
} # Extended-shell func_append implementation

# func_append_quoted var value
# Quote VALUE and append to the end of shell variable VAR, separated
# by a space.
func_append_quoted ()
{
    func_quote_for_eval "${2}"
    eval "${1}+=\\ \$func_quote_for_eval_result"
} # Extended-shell func_append_quoted implementation


# func_arith arithmetic-term...
func_arith ()
{
    func_arith_result=$(( $* ))
} # Extended-shell func_arith implementation


# func_len string
# STRING may not start with a hyphen.
func_len ()
{
    func_len_result=${#1}
} # Extended-shell func_len implementation


# func_lo2o object
func_lo2o ()
{
    case ${1} in
      *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
      *)    func_lo2o_result=${1} ;;
    esac
} # Extended-shell func_lo2o implementation


# func_xform libobj-or-source
func_xform ()
{
    func_xform_result=${1%.*}.lo
} # Extended-shell func_xform implementation


# func_fatal_configuration arg...
# Echo program name prefixed message to standard error, followed by
# a configuration failure hint, and exit.
func_fatal_configuration ()
{
    func_error ${1+"$@"}
    func_error "See the $PACKAGE documentation for more information."
    func_fatal_error "Fatal configuration error."
}


# func_config
# Display the configuration for all the tags in this script.
func_config ()
{
    re_begincf='^# ### BEGIN LIBTOOL'
    re_endcf='^# ### END LIBTOOL'

    # Default configuration.
    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"

    # Now print the configurations for the tags.
    for tagname in $taglist; do
      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
    done

    exit $?
}

# func_features
# Display the features supported by this script.
func_features ()
{
    echo "host: $host"
    if test "$build_libtool_libs" = yes; then
      echo "enable shared libraries"
    else
      echo "disable shared libraries"
    fi
    if test "$build_old_libs" = yes; then
      echo "enable static libraries"
    else
      echo "disable static libraries"
    fi

    exit $?
}

# func_enable_tag tagname
# Verify that TAGNAME is valid, and either flag an error and exit, or
# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
# variable here.
func_enable_tag ()
{
  # Global variable:
  tagname="$1"

  re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
  re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
  sed_extractcf="/$re_begincf/,/$re_endcf/p"

  # Validate tagname.
  case $tagname in
    *[!-_A-Za-z0-9,/]*)
      func_fatal_error "invalid tag name: $tagname"
      ;;
  esac

  # Don't test for the "default" C tag, as we know it's
  # there but not specially marked.
  case $tagname in
    CC) ;;
    *)
      if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
	taglist="$taglist $tagname"

	# Evaluate the configuration.  Be careful to quote the path
	# and the sed script, to avoid splitting on whitespace, but
	# also don't use non-portable quotes within backquotes within
	# quotes we have to do it in 2 steps:
	extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
	eval "$extractedcf"
      else
	func_error "ignoring unknown tag $tagname"
      fi
      ;;
  esac
}

# func_check_version_match
# Ensure that we are using m4 macros, and libtool script from the same
# release of libtool.
func_check_version_match ()
{
  if test "$package_revision" != "$macro_revision"; then
    if test "$VERSION" != "$macro_version"; then
      if test -z "$macro_version"; then
        cat >&2 <<_LT_EOF
$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
$progname: definition of this LT_INIT comes from an older release.
$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
$progname: and run autoconf again.
_LT_EOF
      else
        cat >&2 <<_LT_EOF
$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
$progname: and run autoconf again.
_LT_EOF
      fi
    else
      cat >&2 <<_LT_EOF
$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
$progname: but the definition of this LT_INIT comes from revision $macro_revision.
$progname: You should recreate aclocal.m4 with macros from revision $package_revision
$progname: of $PACKAGE $VERSION and run autoconf again.
_LT_EOF
    fi

    exit $EXIT_MISMATCH
  fi
}


# Shorthand for --mode=foo, only valid as the first argument
case $1 in
clean|clea|cle|cl)
  shift; set dummy --mode clean ${1+"$@"}; shift
  ;;
compile|compil|compi|comp|com|co|c)
  shift; set dummy --mode compile ${1+"$@"}; shift
  ;;
execute|execut|execu|exec|exe|ex|e)
  shift; set dummy --mode execute ${1+"$@"}; shift
  ;;
finish|finis|fini|fin|fi|f)
  shift; set dummy --mode finish ${1+"$@"}; shift
  ;;
install|instal|insta|inst|ins|in|i)
  shift; set dummy --mode install ${1+"$@"}; shift
  ;;
link|lin|li|l)
  shift; set dummy --mode link ${1+"$@"}; shift
  ;;
uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
  shift; set dummy --mode uninstall ${1+"$@"}; shift
  ;;
esac



# Option defaults:
opt_debug=:
opt_dry_run=false
opt_config=false
opt_preserve_dup_deps=false
opt_features=false
opt_finish=false
opt_help=false
opt_help_all=false
opt_silent=:
opt_warning=:
opt_verbose=:
opt_silent=false
opt_verbose=false


# Parse options once, thoroughly.  This comes as soon as possible in the
# script to make things like `--version' happen as quickly as we can.
{
  # this just eases exit handling
  while test $# -gt 0; do
    opt="$1"
    shift
    case $opt in
      --debug|-x)	opt_debug='set -x'
			func_echo "enabling shell trace mode"
			$opt_debug
			;;
      --dry-run|--dryrun|-n)
			opt_dry_run=:
			;;
      --config)
			opt_config=:
func_config
			;;
      --dlopen|-dlopen)
			optarg="$1"
			opt_dlopen="${opt_dlopen+$opt_dlopen
}$optarg"
			shift
			;;
      --preserve-dup-deps)
			opt_preserve_dup_deps=:
			;;
      --features)
			opt_features=:
func_features
			;;
      --finish)
			opt_finish=:
set dummy --mode finish ${1+"$@"}; shift
			;;
      --help)
			opt_help=:
			;;
      --help-all)
			opt_help_all=:
opt_help=': help-all'
			;;
      --mode)
			test $# = 0 && func_missing_arg $opt && break
			optarg="$1"
			opt_mode="$optarg"
case $optarg in
  # Valid mode arguments:
  clean|compile|execute|finish|install|link|relink|uninstall) ;;

  # Catch anything else as an error
  *) func_error "invalid argument for $opt"
     exit_cmd=exit
     break
     ;;
esac
			shift
			;;
      --no-silent|--no-quiet)
			opt_silent=false
preserve_args+=" $opt"
			;;
      --no-warning|--no-warn)
			opt_warning=false
preserve_args+=" $opt"
			;;
      --no-verbose)
			opt_verbose=false
preserve_args+=" $opt"
			;;
      --silent|--quiet)
			opt_silent=:
preserve_args+=" $opt"
        opt_verbose=false
			;;
      --verbose|-v)
			opt_verbose=:
preserve_args+=" $opt"
opt_silent=false
			;;
      --tag)
			test $# = 0 && func_missing_arg $opt && break
			optarg="$1"
			opt_tag="$optarg"
preserve_args+=" $opt $optarg"
func_enable_tag "$optarg"
			shift
			;;

      -\?|-h)		func_usage				;;
      --help)		func_help				;;
      --version)	func_version				;;

      # Separate optargs to long options:
      --*=*)
			func_split_long_opt "$opt"
			set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"}
			shift
			;;

      # Separate non-argument short options:
      -\?*|-h*|-n*|-v*)
			func_split_short_opt "$opt"
			set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"}
			shift
			;;

      --)		break					;;
      -*)		func_fatal_help "unrecognized option \`$opt'" ;;
      *)		set dummy "$opt" ${1+"$@"};	shift; break  ;;
    esac
  done

  # Validate options:

  # save first non-option argument
  if test "$#" -gt 0; then
    nonopt="$opt"
    shift
  fi

  # preserve --debug
  test "$opt_debug" = : || preserve_args+=" --debug"

  case $host in
    *cygwin* | *mingw* | *pw32* | *cegcc*)
      # don't eliminate duplications in $postdeps and $predeps
      opt_duplicate_compiler_generated_deps=:
      ;;
    *)
      opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
      ;;
  esac

  $opt_help || {
    # Sanity checks first:
    func_check_version_match

    if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
      func_fatal_configuration "not configured to build any kind of library"
    fi

    # Darwin sucks
    eval std_shrext=\"$shrext_cmds\"

    # Only execute mode is allowed to have -dlopen flags.
    if test -n "$opt_dlopen" && test "$opt_mode" != execute; then
      func_error "unrecognized option \`-dlopen'"
      $ECHO "$help" 1>&2
      exit $EXIT_FAILURE
    fi

    # Change the help message to a mode-specific one.
    generic_help="$help"
    help="Try \`$progname --help --mode=$opt_mode' for more information."
  }


  # Bail if the options were screwed
  $exit_cmd $EXIT_FAILURE
}




## ----------- ##
##    Main.    ##
## ----------- ##

# func_lalib_p file
# True iff FILE is a libtool `.la' library or `.lo' object file.
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_lalib_p ()
{
    test -f "$1" &&
      $SED -e 4q "$1" 2>/dev/null \
        | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
}

# func_lalib_unsafe_p file
# True iff FILE is a libtool `.la' library or `.lo' object file.
# This function implements the same check as func_lalib_p without
# resorting to external programs.  To this end, it redirects stdin and
# closes it afterwards, without saving the original file descriptor.
# As a safety measure, use it only where a negative result would be
# fatal anyway.  Works if `file' does not exist.
func_lalib_unsafe_p ()
{
    lalib_p=no
    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
	for lalib_p_l in 1 2 3 4
	do
	    read lalib_p_line
	    case "$lalib_p_line" in
		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
	    esac
	done
	exec 0<&5 5<&-
    fi
    test "$lalib_p" = yes
}

# func_ltwrapper_script_p file
# True iff FILE is a libtool wrapper script
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_ltwrapper_script_p ()
{
    func_lalib_p "$1"
}

# func_ltwrapper_executable_p file
# True iff FILE is a libtool wrapper executable
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_ltwrapper_executable_p ()
{
    func_ltwrapper_exec_suffix=
    case $1 in
    *.exe) ;;
    *) func_ltwrapper_exec_suffix=.exe ;;
    esac
    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
}

# func_ltwrapper_scriptname file
# Assumes file is an ltwrapper_executable
# uses $file to determine the appropriate filename for a
# temporary ltwrapper_script.
func_ltwrapper_scriptname ()
{
    func_dirname_and_basename "$1" "" "."
    func_stripname '' '.exe' "$func_basename_result"
    func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
}

# func_ltwrapper_p file
# True iff FILE is a libtool wrapper script or wrapper executable
# This function is only a basic sanity check; it will hardly flush out
# determined imposters.
func_ltwrapper_p ()
{
    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
}


# func_execute_cmds commands fail_cmd
# Execute tilde-delimited COMMANDS.
# If FAIL_CMD is given, eval that upon failure.
# FAIL_CMD may read-access the current command in variable CMD!
func_execute_cmds ()
{
    $opt_debug
    save_ifs=$IFS; IFS='~'
    for cmd in $1; do
      IFS=$save_ifs
      eval cmd=\"$cmd\"
      func_show_eval "$cmd" "${2-:}"
    done
    IFS=$save_ifs
}


# func_source file
# Source FILE, adding directory component if necessary.
# Note that it is not necessary on cygwin/mingw to append a dot to
# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
# behavior happens only for exec(3), not for open(2)!  Also, sourcing
# `FILE.' does not work on cygwin managed mounts.
func_source ()
{
    $opt_debug
    case $1 in
    */* | *\\*)	. "$1" ;;
    *)		. "./$1" ;;
    esac
}


# func_resolve_sysroot PATH
# Replace a leading = in PATH with a sysroot.  Store the result into
# func_resolve_sysroot_result
func_resolve_sysroot ()
{
  func_resolve_sysroot_result=$1
  case $func_resolve_sysroot_result in
  =*)
    func_stripname '=' '' "$func_resolve_sysroot_result"
    func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
    ;;
  esac
}

# func_replace_sysroot PATH
# If PATH begins with the sysroot, replace it with = and
# store the result into func_replace_sysroot_result.
func_replace_sysroot ()
{
  case "$lt_sysroot:$1" in
  ?*:"$lt_sysroot"*)
    func_stripname "$lt_sysroot" '' "$1"
    func_replace_sysroot_result="=$func_stripname_result"
    ;;
  *)
    # Including no sysroot.
    func_replace_sysroot_result=$1
    ;;
  esac
}

# func_infer_tag arg
# Infer tagged configuration to use if any are available and
# if one wasn't chosen via the "--tag" command line option.
# Only attempt this if the compiler in the base compile
# command doesn't match the default compiler.
# arg is usually of the form 'gcc ...'
func_infer_tag ()
{
    $opt_debug
    if test -n "$available_tags" && test -z "$tagname"; then
      CC_quoted=
      for arg in $CC; do
	func_append_quoted CC_quoted "$arg"
      done
      CC_expanded=`func_echo_all $CC`
      CC_quoted_expanded=`func_echo_all $CC_quoted`
      case $@ in
      # Blanks in the command may have been stripped by the calling shell,
      # but not from the CC environment variable when configure was run.
      " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
      " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
      # Blanks at the start of $base_compile will cause this to fail
      # if we don't check for them as well.
      *)
	for z in $available_tags; do
	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
	    # Evaluate the configuration.
	    eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
	    CC_quoted=
	    for arg in $CC; do
	      # Double-quote args containing other shell metacharacters.
	      func_append_quoted CC_quoted "$arg"
	    done
	    CC_expanded=`func_echo_all $CC`
	    CC_quoted_expanded=`func_echo_all $CC_quoted`
	    case "$@ " in
	    " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
	    " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
	      # The compiler in the base compile command matches
	      # the one in the tagged configuration.
	      # Assume this is the tagged configuration we want.
	      tagname=$z
	      break
	      ;;
	    esac
	  fi
	done
	# If $tagname still isn't set, then no tagged configuration
	# was found and let the user know that the "--tag" command
	# line option must be used.
	if test -z "$tagname"; then
	  func_echo "unable to infer tagged configuration"
	  func_fatal_error "specify a tag with \`--tag'"
#	else
#	  func_verbose "using $tagname tagged configuration"
	fi
	;;
      esac
    fi
}



# func_write_libtool_object output_name pic_name nonpic_name
# Create a libtool object file (analogous to a ".la" file),
# but don't create it if we're doing a dry run.
func_write_libtool_object ()
{
    write_libobj=${1}
    if test "$build_libtool_libs" = yes; then
      write_lobj=\'${2}\'
    else
      write_lobj=none
    fi

    if test "$build_old_libs" = yes; then
      write_oldobj=\'${3}\'
    else
      write_oldobj=none
    fi

    $opt_dry_run || {
      cat >${write_libobj}T </dev/null`
    if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then
      func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
        $SED -e "$lt_sed_naive_backslashify"`
    else
      func_convert_core_file_wine_to_w32_result=
    fi
  fi
}
# end: func_convert_core_file_wine_to_w32


# func_convert_core_path_wine_to_w32 ARG
# Helper function used by path conversion functions when $build is *nix, and
# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
# configured wine environment available, with the winepath program in $build's
# $PATH. Assumes ARG has no leading or trailing path separator characters.
#
# ARG is path to be converted from $build format to win32.
# Result is available in $func_convert_core_path_wine_to_w32_result.
# Unconvertible file (directory) names in ARG are skipped; if no directory names
# are convertible, then the result may be empty.
func_convert_core_path_wine_to_w32 ()
{
  $opt_debug
  # unfortunately, winepath doesn't convert paths, only file names
  func_convert_core_path_wine_to_w32_result=""
  if test -n "$1"; then
    oldIFS=$IFS
    IFS=:
    for func_convert_core_path_wine_to_w32_f in $1; do
      IFS=$oldIFS
      func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
      if test -n "$func_convert_core_file_wine_to_w32_result" ; then
        if test -z "$func_convert_core_path_wine_to_w32_result"; then
          func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result"
        else
          func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
        fi
      fi
    done
    IFS=$oldIFS
  fi
}
# end: func_convert_core_path_wine_to_w32


# func_cygpath ARGS...
# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
# (2), returns the Cygwin file name or path in func_cygpath_result (input
# file name or path is assumed to be in w32 format, as previously converted
# from $build's *nix or MSYS format). In case (3), returns the w32 file name
# or path in func_cygpath_result (input file name or path is assumed to be in
# Cygwin format). Returns an empty string on error.
#
# ARGS are passed to cygpath, with the last one being the file name or path to
# be converted.
#
# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
# environment variable; do not put it in $PATH.
func_cygpath ()
{
  $opt_debug
  if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
    func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
    if test "$?" -ne 0; then
      # on failure, ensure result is empty
      func_cygpath_result=
    fi
  else
    func_cygpath_result=
    func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'"
  fi
}
#end: func_cygpath


# func_convert_core_msys_to_w32 ARG
# Convert file name or path ARG from MSYS format to w32 format.  Return
# result in func_convert_core_msys_to_w32_result.
func_convert_core_msys_to_w32 ()
{
  $opt_debug
  # awkward: cmd appends spaces to result
  func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
    $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
}
#end: func_convert_core_msys_to_w32


# func_convert_file_check ARG1 ARG2
# Verify that ARG1 (a file name in $build format) was converted to $host
# format in ARG2. Otherwise, emit an error message, but continue (resetting
# func_to_host_file_result to ARG1).
func_convert_file_check ()
{
  $opt_debug
  if test -z "$2" && test -n "$1" ; then
    func_error "Could not determine host file name corresponding to"
    func_error "  \`$1'"
    func_error "Continuing, but uninstalled executables may not work."
    # Fallback:
    func_to_host_file_result="$1"
  fi
}
# end func_convert_file_check


# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
# Verify that FROM_PATH (a path in $build format) was converted to $host
# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
# func_to_host_file_result to a simplistic fallback value (see below).
func_convert_path_check ()
{
  $opt_debug
  if test -z "$4" && test -n "$3"; then
    func_error "Could not determine the host path corresponding to"
    func_error "  \`$3'"
    func_error "Continuing, but uninstalled executables may not work."
    # Fallback.  This is a deliberately simplistic "conversion" and
    # should not be "improved".  See libtool.info.
    if test "x$1" != "x$2"; then
      lt_replace_pathsep_chars="s|$1|$2|g"
      func_to_host_path_result=`echo "$3" |
        $SED -e "$lt_replace_pathsep_chars"`
    else
      func_to_host_path_result="$3"
    fi
  fi
}
# end func_convert_path_check


# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
# and appending REPL if ORIG matches BACKPAT.
func_convert_path_front_back_pathsep ()
{
  $opt_debug
  case $4 in
  $1 ) func_to_host_path_result="$3$func_to_host_path_result"
    ;;
  esac
  case $4 in
  $2 ) func_to_host_path_result+="$3"
    ;;
  esac
}
# end func_convert_path_front_back_pathsep


##################################################
# $build to $host FILE NAME CONVERSION FUNCTIONS #
##################################################
# invoked via `$to_host_file_cmd ARG'
#
# In each case, ARG is the path to be converted from $build to $host format.
# Result will be available in $func_to_host_file_result.


# func_to_host_file ARG
# Converts the file name ARG from $build format to $host format. Return result
# in func_to_host_file_result.
func_to_host_file ()
{
  $opt_debug
  $to_host_file_cmd "$1"
}
# end func_to_host_file


# func_to_tool_file ARG LAZY
# converts the file name ARG from $build format to toolchain format. Return
# result in func_to_tool_file_result.  If the conversion in use is listed
# in (the comma separated) LAZY, no conversion takes place.
func_to_tool_file ()
{
  $opt_debug
  case ,$2, in
    *,"$to_tool_file_cmd",*)
      func_to_tool_file_result=$1
      ;;
    *)
      $to_tool_file_cmd "$1"
      func_to_tool_file_result=$func_to_host_file_result
      ;;
  esac
}
# end func_to_tool_file


# func_convert_file_noop ARG
# Copy ARG to func_to_host_file_result.
func_convert_file_noop ()
{
  func_to_host_file_result="$1"
}
# end func_convert_file_noop


# func_convert_file_msys_to_w32 ARG
# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
# conversion to w32 is not available inside the cwrapper.  Returns result in
# func_to_host_file_result.
func_convert_file_msys_to_w32 ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    func_convert_core_msys_to_w32 "$1"
    func_to_host_file_result="$func_convert_core_msys_to_w32_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_msys_to_w32


# func_convert_file_cygwin_to_w32 ARG
# Convert file name ARG from Cygwin to w32 format.  Returns result in
# func_to_host_file_result.
func_convert_file_cygwin_to_w32 ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
    # LT_CYGPATH in this case.
    func_to_host_file_result=`cygpath -m "$1"`
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_cygwin_to_w32


# func_convert_file_nix_to_w32 ARG
# Convert file name ARG from *nix to w32 format.  Requires a wine environment
# and a working winepath. Returns result in func_to_host_file_result.
func_convert_file_nix_to_w32 ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    func_convert_core_file_wine_to_w32 "$1"
    func_to_host_file_result="$func_convert_core_file_wine_to_w32_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_nix_to_w32


# func_convert_file_msys_to_cygwin ARG
# Convert file name ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
# Returns result in func_to_host_file_result.
func_convert_file_msys_to_cygwin ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    func_convert_core_msys_to_w32 "$1"
    func_cygpath -u "$func_convert_core_msys_to_w32_result"
    func_to_host_file_result="$func_cygpath_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_msys_to_cygwin


# func_convert_file_nix_to_cygwin ARG
# Convert file name ARG from *nix to Cygwin format.  Requires Cygwin installed
# in a wine environment, working winepath, and LT_CYGPATH set.  Returns result
# in func_to_host_file_result.
func_convert_file_nix_to_cygwin ()
{
  $opt_debug
  func_to_host_file_result="$1"
  if test -n "$1"; then
    # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
    func_convert_core_file_wine_to_w32 "$1"
    func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
    func_to_host_file_result="$func_cygpath_result"
  fi
  func_convert_file_check "$1" "$func_to_host_file_result"
}
# end func_convert_file_nix_to_cygwin


#############################################
# $build to $host PATH CONVERSION FUNCTIONS #
#############################################
# invoked via `$to_host_path_cmd ARG'
#
# In each case, ARG is the path to be converted from $build to $host format.
# The result will be available in $func_to_host_path_result.
#
# Path separators are also converted from $build format to $host format.  If
# ARG begins or ends with a path separator character, it is preserved (but
# converted to $host format) on output.
#
# All path conversion functions are named using the following convention:
#   file name conversion function    : func_convert_file_X_to_Y ()
#   path conversion function         : func_convert_path_X_to_Y ()
# where, for any given $build/$host combination the 'X_to_Y' value is the
# same.  If conversion functions are added for new $build/$host combinations,
# the two new functions must follow this pattern, or func_init_to_host_path_cmd
# will break.


# func_init_to_host_path_cmd
# Ensures that function "pointer" variable $to_host_path_cmd is set to the
# appropriate value, based on the value of $to_host_file_cmd.
to_host_path_cmd=
func_init_to_host_path_cmd ()
{
  $opt_debug
  if test -z "$to_host_path_cmd"; then
    func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
    to_host_path_cmd="func_convert_path_${func_stripname_result}"
  fi
}


# func_to_host_path ARG
# Converts the path ARG from $build format to $host format. Return result
# in func_to_host_path_result.
func_to_host_path ()
{
  $opt_debug
  func_init_to_host_path_cmd
  $to_host_path_cmd "$1"
}
# end func_to_host_path


# func_convert_path_noop ARG
# Copy ARG to func_to_host_path_result.
func_convert_path_noop ()
{
  func_to_host_path_result="$1"
}
# end func_convert_path_noop


# func_convert_path_msys_to_w32 ARG
# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
# conversion to w32 is not available inside the cwrapper.  Returns result in
# func_to_host_path_result.
func_convert_path_msys_to_w32 ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # Remove leading and trailing path separator characters from ARG.  MSYS
    # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
    # and winepath ignores them completely.
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
    func_to_host_path_result="$func_convert_core_msys_to_w32_result"
    func_convert_path_check : ";" \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
  fi
}
# end func_convert_path_msys_to_w32


# func_convert_path_cygwin_to_w32 ARG
# Convert path ARG from Cygwin to w32 format.  Returns result in
# func_to_host_file_result.
func_convert_path_cygwin_to_w32 ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # See func_convert_path_msys_to_w32:
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
    func_convert_path_check : ";" \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
  fi
}
# end func_convert_path_cygwin_to_w32


# func_convert_path_nix_to_w32 ARG
# Convert path ARG from *nix to w32 format.  Requires a wine environment and
# a working winepath.  Returns result in func_to_host_file_result.
func_convert_path_nix_to_w32 ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # See func_convert_path_msys_to_w32:
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
    func_to_host_path_result="$func_convert_core_path_wine_to_w32_result"
    func_convert_path_check : ";" \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
  fi
}
# end func_convert_path_nix_to_w32


# func_convert_path_msys_to_cygwin ARG
# Convert path ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
# Returns result in func_to_host_file_result.
func_convert_path_msys_to_cygwin ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # See func_convert_path_msys_to_w32:
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
    func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
    func_to_host_path_result="$func_cygpath_result"
    func_convert_path_check : : \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
  fi
}
# end func_convert_path_msys_to_cygwin


# func_convert_path_nix_to_cygwin ARG
# Convert path ARG from *nix to Cygwin format.  Requires Cygwin installed in a
# a wine environment, working winepath, and LT_CYGPATH set.  Returns result in
# func_to_host_file_result.
func_convert_path_nix_to_cygwin ()
{
  $opt_debug
  func_to_host_path_result="$1"
  if test -n "$1"; then
    # Remove leading and trailing path separator characters from
    # ARG. msys behavior is inconsistent here, cygpath turns them
    # into '.;' and ';.', and winepath ignores them completely.
    func_stripname : : "$1"
    func_to_host_path_tmp1=$func_stripname_result
    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
    func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
    func_to_host_path_result="$func_cygpath_result"
    func_convert_path_check : : \
      "$func_to_host_path_tmp1" "$func_to_host_path_result"
    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
  fi
}
# end func_convert_path_nix_to_cygwin


# func_mode_compile arg...
func_mode_compile ()
{
    $opt_debug
    # Get the compilation command and the source file.
    base_compile=
    srcfile="$nonopt"  #  always keep a non-empty value in "srcfile"
    suppress_opt=yes
    suppress_output=
    arg_mode=normal
    libobj=
    later=
    pie_flag=

    for arg
    do
      case $arg_mode in
      arg  )
	# do not "continue".  Instead, add this to base_compile
	lastarg="$arg"
	arg_mode=normal
	;;

      target )
	libobj="$arg"
	arg_mode=normal
	continue
	;;

      normal )
	# Accept any command-line options.
	case $arg in
	-o)
	  test -n "$libobj" && \
	    func_fatal_error "you cannot specify \`-o' more than once"
	  arg_mode=target
	  continue
	  ;;

	-pie | -fpie | -fPIE)
          pie_flag+=" $arg"
	  continue
	  ;;

	-shared | -static | -prefer-pic | -prefer-non-pic)
	  later+=" $arg"
	  continue
	  ;;

	-no-suppress)
	  suppress_opt=no
	  continue
	  ;;

	-Xcompiler)
	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
	  continue      #  The current "srcfile" will either be retained or
	  ;;            #  replaced later.  I would guess that would be a bug.

	-Wc,*)
	  func_stripname '-Wc,' '' "$arg"
	  args=$func_stripname_result
	  lastarg=
	  save_ifs="$IFS"; IFS=','
	  for arg in $args; do
	    IFS="$save_ifs"
	    func_append_quoted lastarg "$arg"
	  done
	  IFS="$save_ifs"
	  func_stripname ' ' '' "$lastarg"
	  lastarg=$func_stripname_result

	  # Add the arguments to base_compile.
	  base_compile+=" $lastarg"
	  continue
	  ;;

	*)
	  # Accept the current argument as the source file.
	  # The previous "srcfile" becomes the current argument.
	  #
	  lastarg="$srcfile"
	  srcfile="$arg"
	  ;;
	esac  #  case $arg
	;;
      esac    #  case $arg_mode

      # Aesthetically quote the previous argument.
      func_append_quoted base_compile "$lastarg"
    done # for arg

    case $arg_mode in
    arg)
      func_fatal_error "you must specify an argument for -Xcompile"
      ;;
    target)
      func_fatal_error "you must specify a target with \`-o'"
      ;;
    *)
      # Get the name of the library object.
      test -z "$libobj" && {
	func_basename "$srcfile"
	libobj="$func_basename_result"
      }
      ;;
    esac

    # Recognize several different file suffixes.
    # If the user specifies -o file.o, it is replaced with file.lo
    case $libobj in
    *.[cCFSifmso] | \
    *.ada | *.adb | *.ads | *.asm | \
    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
      func_xform "$libobj"
      libobj=$func_xform_result
      ;;
    esac

    case $libobj in
    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
    *)
      func_fatal_error "cannot determine name of library object from \`$libobj'"
      ;;
    esac

    func_infer_tag $base_compile

    for arg in $later; do
      case $arg in
      -shared)
	test "$build_libtool_libs" != yes && \
	  func_fatal_configuration "can not build a shared library"
	build_old_libs=no
	continue
	;;

      -static)
	build_libtool_libs=no
	build_old_libs=yes
	continue
	;;

      -prefer-pic)
	pic_mode=yes
	continue
	;;

      -prefer-non-pic)
	pic_mode=no
	continue
	;;
      esac
    done

    func_quote_for_eval "$libobj"
    test "X$libobj" != "X$func_quote_for_eval_result" \
      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
      && func_warning "libobj name \`$libobj' may not contain shell special characters."
    func_dirname_and_basename "$obj" "/" ""
    objname="$func_basename_result"
    xdir="$func_dirname_result"
    lobj=${xdir}$objdir/$objname

    test -z "$base_compile" && \
      func_fatal_help "you must specify a compilation command"

    # Delete any leftover library objects.
    if test "$build_old_libs" = yes; then
      removelist="$obj $lobj $libobj ${libobj}T"
    else
      removelist="$lobj $libobj ${libobj}T"
    fi

    # On Cygwin there's no "real" PIC flag so we must build both object types
    case $host_os in
    cygwin* | mingw* | pw32* | os2* | cegcc*)
      pic_mode=default
      ;;
    esac
    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
      # non-PIC code in shared libraries is not supported
      pic_mode=default
    fi

    # Calculate the filename of the output object if compiler does
    # not support -o with -c
    if test "$compiler_c_o" = no; then
      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext}
      lockfile="$output_obj.lock"
    else
      output_obj=
      need_locks=no
      lockfile=
    fi

    # Lock this critical section if it is needed
    # We use this script file to make the link, it avoids creating a new file
    if test "$need_locks" = yes; then
      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
	func_echo "Waiting for $lockfile to be removed"
	sleep 2
      done
    elif test "$need_locks" = warn; then
      if test -f "$lockfile"; then
	$ECHO "\
*** ERROR, $lockfile exists and contains:
`cat $lockfile 2>/dev/null`

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$opt_dry_run || $RM $removelist
	exit $EXIT_FAILURE
      fi
      removelist+=" $output_obj"
      $ECHO "$srcfile" > "$lockfile"
    fi

    $opt_dry_run || $RM $removelist
    removelist+=" $lockfile"
    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15

    func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
    srcfile=$func_to_tool_file_result
    func_quote_for_eval "$srcfile"
    qsrcfile=$func_quote_for_eval_result

    # Only build a PIC object if we are building libtool libraries.
    if test "$build_libtool_libs" = yes; then
      # Without this assignment, base_compile gets emptied.
      fbsd_hideous_sh_bug=$base_compile

      if test "$pic_mode" != no; then
	command="$base_compile $qsrcfile $pic_flag"
      else
	# Don't build PIC code
	command="$base_compile $qsrcfile"
      fi

      func_mkdir_p "$xdir$objdir"

      if test -z "$output_obj"; then
	# Place PIC objects in $objdir
	command+=" -o $lobj"
      fi

      func_show_eval_locale "$command"	\
          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'

      if test "$need_locks" = warn &&
	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
	$ECHO "\
*** ERROR, $lockfile contains:
`cat $lockfile 2>/dev/null`

but it should contain:
$srcfile

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$opt_dry_run || $RM $removelist
	exit $EXIT_FAILURE
      fi

      # Just move the object if needed, then go on to compile the next one
      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
	func_show_eval '$MV "$output_obj" "$lobj"' \
	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
      fi

      # Allow error messages only from the first compilation.
      if test "$suppress_opt" = yes; then
	suppress_output=' >/dev/null 2>&1'
      fi
    fi

    # Only build a position-dependent object if we build old libraries.
    if test "$build_old_libs" = yes; then
      if test "$pic_mode" != yes; then
	# Don't build PIC code
	command="$base_compile $qsrcfile$pie_flag"
      else
	command="$base_compile $qsrcfile $pic_flag"
      fi
      if test "$compiler_c_o" = yes; then
	command+=" -o $obj"
      fi

      # Suppress compiler output if we already did a PIC compilation.
      command+="$suppress_output"
      func_show_eval_locale "$command" \
        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'

      if test "$need_locks" = warn &&
	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
	$ECHO "\
*** ERROR, $lockfile contains:
`cat $lockfile 2>/dev/null`

but it should contain:
$srcfile

This indicates that another process is trying to use the same
temporary object file, and libtool could not work around it because
your compiler does not support \`-c' and \`-o' together.  If you
repeat this compilation, it may succeed, by chance, but you had better
avoid parallel builds (make -j) in this platform, or get a better
compiler."

	$opt_dry_run || $RM $removelist
	exit $EXIT_FAILURE
      fi

      # Just move the object if needed
      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
	func_show_eval '$MV "$output_obj" "$obj"' \
	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
      fi
    fi

    $opt_dry_run || {
      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"

      # Unlock the critical section if it was locked
      if test "$need_locks" != no; then
	removelist=$lockfile
        $RM "$lockfile"
      fi
    }

    exit $EXIT_SUCCESS
}

$opt_help || {
  test "$opt_mode" = compile && func_mode_compile ${1+"$@"}
}

func_mode_help ()
{
    # We need to display help for each of the modes.
    case $opt_mode in
      "")
        # Generic help is extracted from the usage comments
        # at the start of this file.
        func_help
        ;;

      clean)
        $ECHO \
"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...

Remove files from the build directory.

RM is the name of the program to use to delete files associated with each FILE
(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
to RM.

If FILE is a libtool library, object or program, all the files associated
with it are deleted. Otherwise, only FILE itself is deleted using RM."
        ;;

      compile)
      $ECHO \
"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE

Compile a source file into a libtool library object.

This mode accepts the following additional options:

  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
  -no-suppress      do not suppress compiler output for multiple passes
  -prefer-pic       try to build PIC objects only
  -prefer-non-pic   try to build non-PIC objects only
  -shared           do not build a \`.o' file suitable for static linking
  -static           only build a \`.o' file suitable for static linking
  -Wc,FLAG          pass FLAG directly to the compiler

COMPILE-COMMAND is a command to be used in creating a \`standard' object file
from the given SOURCEFILE.

The output file name is determined by removing the directory component from
SOURCEFILE, then substituting the C source code suffix \`.c' with the
library object suffix, \`.lo'."
        ;;

      execute)
        $ECHO \
"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...

Automatically set library path, then run a program.

This mode accepts the following additional options:

  -dlopen FILE      add the directory containing FILE to the library path

This mode sets the library path environment variable according to \`-dlopen'
flags.

If any of the ARGS are libtool executable wrappers, then they are translated
into their corresponding uninstalled binary, and any of their required library
directories are added to the library path.

Then, COMMAND is executed, with ARGS as arguments."
        ;;

      finish)
        $ECHO \
"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...

Complete the installation of libtool libraries.

Each LIBDIR is a directory that contains libtool libraries.

The commands that this mode executes may require superuser privileges.  Use
the \`--dry-run' option if you just want to see what would be executed."
        ;;

      install)
        $ECHO \
"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...

Install executables or libraries.

INSTALL-COMMAND is the installation command.  The first component should be
either the \`install' or \`cp' program.

The following components of INSTALL-COMMAND are treated specially:

  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation

The rest of the components are interpreted as arguments to that command (only
BSD-compatible install options are recognized)."
        ;;

      link)
        $ECHO \
"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...

Link object files or libraries together to form another library, or to
create an executable program.

LINK-COMMAND is a command using the C compiler that you would use to create
a program from several object files.

The following components of LINK-COMMAND are treated specially:

  -all-static       do not do any dynamic linking at all
  -avoid-version    do not add a version suffix if possible
  -bindir BINDIR    specify path to binaries directory (for systems where
                    libraries must be found in the PATH setting at runtime)
  -dlopen FILE      \`-dlpreopen' FILE if it cannot be dlopened at runtime
  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
  -export-symbols SYMFILE
                    try to export only the symbols listed in SYMFILE
  -export-symbols-regex REGEX
                    try to export only the symbols matching REGEX
  -LLIBDIR          search LIBDIR for required installed libraries
  -lNAME            OUTPUT-FILE requires the installed library libNAME
  -module           build a library that can dlopened
  -no-fast-install  disable the fast-install mode
  -no-install       link a not-installable executable
  -no-undefined     declare that a library does not refer to external symbols
  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
  -objectlist FILE  Use a list of object files found in FILE to specify objects
  -precious-files-regex REGEX
                    don't remove output files matching REGEX
  -release RELEASE  specify package release information
  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
  -shared           only do dynamic linking of libtool libraries
  -shrext SUFFIX    override the standard shared library file extension
  -static           do not do any dynamic linking of uninstalled libtool libraries
  -static-libtool-libs
                    do not do any dynamic linking of libtool libraries
  -version-info CURRENT[:REVISION[:AGE]]
                    specify library version info [each variable defaults to 0]
  -weak LIBNAME     declare that the target provides the LIBNAME interface
  -Wc,FLAG
  -Xcompiler FLAG   pass linker-specific FLAG directly to the compiler
  -Wl,FLAG
  -Xlinker FLAG     pass linker-specific FLAG directly to the linker
  -XCClinker FLAG   pass link-specific FLAG to the compiler driver (CC)

All other options (arguments beginning with \`-') are ignored.

Every other argument is treated as a filename.  Files ending in \`.la' are
treated as uninstalled libtool libraries, other files are standard or library
object files.

If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
only library objects (\`.lo' files) may be specified, and \`-rpath' is
required, except when creating a convenience library.

If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
using \`ar' and \`ranlib', or on Windows using \`lib'.

If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
is created, otherwise an executable program is created."
        ;;

      uninstall)
        $ECHO \
"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...

Remove libraries from an installation directory.

RM is the name of the program to use to delete files associated with each FILE
(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
to RM.

If FILE is a libtool library, all the files associated with it are deleted.
Otherwise, only FILE itself is deleted using RM."
        ;;

      *)
        func_fatal_help "invalid operation mode \`$opt_mode'"
        ;;
    esac

    echo
    $ECHO "Try \`$progname --help' for more information about other modes."
}

# Now that we've collected a possible --mode arg, show help if necessary
if $opt_help; then
  if test "$opt_help" = :; then
    func_mode_help
  else
    {
      func_help noexit
      for opt_mode in compile link execute install finish uninstall clean; do
	func_mode_help
      done
    } | sed -n '1p; 2,$s/^Usage:/  or: /p'
    {
      func_help noexit
      for opt_mode in compile link execute install finish uninstall clean; do
	echo
	func_mode_help
      done
    } |
    sed '1d
      /^When reporting/,/^Report/{
	H
	d
      }
      $x
      /information about other modes/d
      /more detailed .*MODE/d
      s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
  fi
  exit $?
fi


# func_mode_execute arg...
func_mode_execute ()
{
    $opt_debug
    # The first argument is the command name.
    cmd="$nonopt"
    test -z "$cmd" && \
      func_fatal_help "you must specify a COMMAND"

    # Handle -dlopen flags immediately.
    for file in $opt_dlopen; do
      test -f "$file" \
	|| func_fatal_help "\`$file' is not a file"

      dir=
      case $file in
      *.la)
	func_resolve_sysroot "$file"
	file=$func_resolve_sysroot_result

	# Check to see that this really is a libtool archive.
	func_lalib_unsafe_p "$file" \
	  || func_fatal_help "\`$lib' is not a valid libtool archive"

	# Read the libtool library.
	dlname=
	library_names=
	func_source "$file"

	# Skip this library if it cannot be dlopened.
	if test -z "$dlname"; then
	  # Warn if it was a shared library.
	  test -n "$library_names" && \
	    func_warning "\`$file' was not linked with \`-export-dynamic'"
	  continue
	fi

	func_dirname "$file" "" "."
	dir="$func_dirname_result"

	if test -f "$dir/$objdir/$dlname"; then
	  dir+="/$objdir"
	else
	  if test ! -f "$dir/$dlname"; then
	    func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
	  fi
	fi
	;;

      *.lo)
	# Just add the directory containing the .lo file.
	func_dirname "$file" "" "."
	dir="$func_dirname_result"
	;;

      *)
	func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
	continue
	;;
      esac

      # Get the absolute pathname.
      absdir=`cd "$dir" && pwd`
      test -n "$absdir" && dir="$absdir"

      # Now add the directory to shlibpath_var.
      if eval "test -z \"\$$shlibpath_var\""; then
	eval "$shlibpath_var=\"\$dir\""
      else
	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
      fi
    done

    # This variable tells wrapper scripts just to set shlibpath_var
    # rather than running their programs.
    libtool_execute_magic="$magic"

    # Check if any of the arguments is a wrapper script.
    args=
    for file
    do
      case $file in
      -* | *.la | *.lo ) ;;
      *)
	# Do a test to see if this is really a libtool program.
	if func_ltwrapper_script_p "$file"; then
	  func_source "$file"
	  # Transform arg to wrapped name.
	  file="$progdir/$program"
	elif func_ltwrapper_executable_p "$file"; then
	  func_ltwrapper_scriptname "$file"
	  func_source "$func_ltwrapper_scriptname_result"
	  # Transform arg to wrapped name.
	  file="$progdir/$program"
	fi
	;;
      esac
      # Quote arguments (to preserve shell metacharacters).
      func_append_quoted args "$file"
    done

    if test "X$opt_dry_run" = Xfalse; then
      if test -n "$shlibpath_var"; then
	# Export the shlibpath_var.
	eval "export $shlibpath_var"
      fi

      # Restore saved environment variables
      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
      do
	eval "if test \"\${save_$lt_var+set}\" = set; then
                $lt_var=\$save_$lt_var; export $lt_var
	      else
		$lt_unset $lt_var
	      fi"
      done

      # Now prepare to actually exec the command.
      exec_cmd="\$cmd$args"
    else
      # Display what would be done.
      if test -n "$shlibpath_var"; then
	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
	echo "export $shlibpath_var"
      fi
      $ECHO "$cmd$args"
      exit $EXIT_SUCCESS
    fi
}

test "$opt_mode" = execute && func_mode_execute ${1+"$@"}


# func_mode_finish arg...
func_mode_finish ()
{
    $opt_debug
    libs=
    libdirs=
    admincmds=

    for opt in "$nonopt" ${1+"$@"}
    do
      if test -d "$opt"; then
	libdirs+=" $opt"

      elif test -f "$opt"; then
	if func_lalib_unsafe_p "$opt"; then
	  libs+=" $opt"
	else
	  func_warning "\`$opt' is not a valid libtool archive"
	fi

      else
	func_fatal_error "invalid argument \`$opt'"
      fi
    done

    if test -n "$libs"; then
      if test -n "$lt_sysroot"; then
        sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
        sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
      else
        sysroot_cmd=
      fi

      # Remove sysroot references
      if $opt_dry_run; then
        for lib in $libs; do
          echo "removing references to $lt_sysroot and \`=' prefixes from $lib"
        done
      else
        tmpdir=`func_mktempdir`
        for lib in $libs; do
	  sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
	    > $tmpdir/tmp-la
	  mv -f $tmpdir/tmp-la $lib
	done
        ${RM}r "$tmpdir"
      fi
    fi

    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
      for libdir in $libdirs; do
	if test -n "$finish_cmds"; then
	  # Do each command in the finish commands.
	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
'"$cmd"'"'
	fi
	if test -n "$finish_eval"; then
	  # Do the single finish_eval.
	  eval cmds=\"$finish_eval\"
	  $opt_dry_run || eval "$cmds" || admincmds+="
       $cmds"
	fi
      done
    fi

    # Exit here if they wanted silent mode.
    $opt_silent && exit $EXIT_SUCCESS

    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
      echo "----------------------------------------------------------------------"
      echo "Libraries have been installed in:"
      for libdir in $libdirs; do
	$ECHO "   $libdir"
      done
      echo
      echo "If you ever happen to want to link against installed libraries"
      echo "in a given directory, LIBDIR, you must either use libtool, and"
      echo "specify the full pathname of the library, or use the \`-LLIBDIR'"
      echo "flag during linking and do at least one of the following:"
      if test -n "$shlibpath_var"; then
	echo "   - add LIBDIR to the \`$shlibpath_var' environment variable"
	echo "     during execution"
      fi
      if test -n "$runpath_var"; then
	echo "   - add LIBDIR to the \`$runpath_var' environment variable"
	echo "     during linking"
      fi
      if test -n "$hardcode_libdir_flag_spec"; then
	libdir=LIBDIR
	eval flag=\"$hardcode_libdir_flag_spec\"

	$ECHO "   - use the \`$flag' linker flag"
      fi
      if test -n "$admincmds"; then
	$ECHO "   - have your system administrator run these commands:$admincmds"
      fi
      if test -f /etc/ld.so.conf; then
	echo "   - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
      fi
      echo

      echo "See any operating system documentation about shared libraries for"
      case $host in
	solaris2.[6789]|solaris2.1[0-9])
	  echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
	  echo "pages."
	  ;;
	*)
	  echo "more information, such as the ld(1) and ld.so(8) manual pages."
	  ;;
      esac
      echo "----------------------------------------------------------------------"
    fi
    exit $EXIT_SUCCESS
}

test "$opt_mode" = finish && func_mode_finish ${1+"$@"}


# func_mode_install arg...
func_mode_install ()
{
    $opt_debug
    # There may be an optional sh(1) argument at the beginning of
    # install_prog (especially on Windows NT).
    if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
       # Allow the use of GNU shtool's install command.
       case $nonopt in *shtool*) :;; *) false;; esac; then
      # Aesthetically quote it.
      func_quote_for_eval "$nonopt"
      install_prog="$func_quote_for_eval_result "
      arg=$1
      shift
    else
      install_prog=
      arg=$nonopt
    fi

    # The real first argument should be the name of the installation program.
    # Aesthetically quote it.
    func_quote_for_eval "$arg"
    install_prog+="$func_quote_for_eval_result"
    install_shared_prog=$install_prog
    case " $install_prog " in
      *[\\\ /]cp\ *) install_cp=: ;;
      *) install_cp=false ;;
    esac

    # We need to accept at least all the BSD install flags.
    dest=
    files=
    opts=
    prev=
    install_type=
    isdir=no
    stripme=
    no_mode=:
    for arg
    do
      arg2=
      if test -n "$dest"; then
	files+=" $dest"
	dest=$arg
	continue
      fi

      case $arg in
      -d) isdir=yes ;;
      -f)
	if $install_cp; then :; else
	  prev=$arg
	fi
	;;
      -g | -m | -o)
	prev=$arg
	;;
      -s)
	stripme=" -s"
	continue
	;;
      -*)
	;;
      *)
	# If the previous option needed an argument, then skip it.
	if test -n "$prev"; then
	  if test "x$prev" = x-m && test -n "$install_override_mode"; then
	    arg2=$install_override_mode
	    no_mode=false
	  fi
	  prev=
	else
	  dest=$arg
	  continue
	fi
	;;
      esac

      # Aesthetically quote the argument.
      func_quote_for_eval "$arg"
      install_prog+=" $func_quote_for_eval_result"
      if test -n "$arg2"; then
	func_quote_for_eval "$arg2"
      fi
      install_shared_prog+=" $func_quote_for_eval_result"
    done

    test -z "$install_prog" && \
      func_fatal_help "you must specify an install program"

    test -n "$prev" && \
      func_fatal_help "the \`$prev' option requires an argument"

    if test -n "$install_override_mode" && $no_mode; then
      if $install_cp; then :; else
	func_quote_for_eval "$install_override_mode"
	install_shared_prog+=" -m $func_quote_for_eval_result"
      fi
    fi

    if test -z "$files"; then
      if test -z "$dest"; then
	func_fatal_help "no file or destination specified"
      else
	func_fatal_help "you must specify a destination"
      fi
    fi

    # Strip any trailing slash from the destination.
    func_stripname '' '/' "$dest"
    dest=$func_stripname_result

    # Check to see that the destination is a directory.
    test -d "$dest" && isdir=yes
    if test "$isdir" = yes; then
      destdir="$dest"
      destname=
    else
      func_dirname_and_basename "$dest" "" "."
      destdir="$func_dirname_result"
      destname="$func_basename_result"

      # Not a directory, so check to see that there is only one file specified.
      set dummy $files; shift
      test "$#" -gt 1 && \
	func_fatal_help "\`$dest' is not a directory"
    fi
    case $destdir in
    [\\/]* | [A-Za-z]:[\\/]*) ;;
    *)
      for file in $files; do
	case $file in
	*.lo) ;;
	*)
	  func_fatal_help "\`$destdir' must be an absolute directory name"
	  ;;
	esac
      done
      ;;
    esac

    # This variable tells wrapper scripts just to set variables rather
    # than running their programs.
    libtool_install_magic="$magic"

    staticlibs=
    future_libdirs=
    current_libdirs=
    for file in $files; do

      # Do each installation.
      case $file in
      *.$libext)
	# Do the static libraries later.
	staticlibs+=" $file"
	;;

      *.la)
	func_resolve_sysroot "$file"
	file=$func_resolve_sysroot_result

	# Check to see that this really is a libtool archive.
	func_lalib_unsafe_p "$file" \
	  || func_fatal_help "\`$file' is not a valid libtool archive"

	library_names=
	old_library=
	relink_command=
	func_source "$file"

	# Add the libdir to current_libdirs if it is the destination.
	if test "X$destdir" = "X$libdir"; then
	  case "$current_libdirs " in
	  *" $libdir "*) ;;
	  *) current_libdirs+=" $libdir" ;;
	  esac
	else
	  # Note the libdir as a future libdir.
	  case "$future_libdirs " in
	  *" $libdir "*) ;;
	  *) future_libdirs+=" $libdir" ;;
	  esac
	fi

	func_dirname "$file" "/" ""
	dir="$func_dirname_result"
	dir+="$objdir"

	if test -n "$relink_command"; then
	  # Determine the prefix the user has applied to our future dir.
	  inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`

	  # Don't allow the user to place us outside of our expected
	  # location b/c this prevents finding dependent libraries that
	  # are installed to the same prefix.
	  # At present, this check doesn't affect windows .dll's that
	  # are installed into $libdir/../bin (currently, that works fine)
	  # but it's something to keep an eye on.
	  test "$inst_prefix_dir" = "$destdir" && \
	    func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"

	  if test -n "$inst_prefix_dir"; then
	    # Stick the inst_prefix_dir data into the link command.
	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
	  else
	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
	  fi

	  func_warning "relinking \`$file'"
	  func_show_eval "$relink_command" \
	    'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
	fi

	# See the names of the shared library.
	set dummy $library_names; shift
	if test -n "$1"; then
	  realname="$1"
	  shift

	  srcname="$realname"
	  test -n "$relink_command" && srcname="$realname"T

	  # Install the shared library and build the symlinks.
	  func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
	      'exit $?'
	  tstripme="$stripme"
	  case $host_os in
	  cygwin* | mingw* | pw32* | cegcc*)
	    case $realname in
	    *.dll.a)
	      tstripme=""
	      ;;
	    esac
	    ;;
	  esac
	  if test -n "$tstripme" && test -n "$striplib"; then
	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
	  fi

	  if test "$#" -gt 0; then
	    # Delete the old symlinks, and create new ones.
	    # Try `ln -sf' first, because the `ln' binary might depend on
	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
	    # so we also need to try rm && ln -s.
	    for linkname
	    do
	      test "$linkname" != "$realname" \
		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
	    done
	  fi

	  # Do each command in the postinstall commands.
	  lib="$destdir/$realname"
	  func_execute_cmds "$postinstall_cmds" 'exit $?'
	fi

	# Install the pseudo-library for information purposes.
	func_basename "$file"
	name="$func_basename_result"
	instname="$dir/$name"i
	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'

	# Maybe install the static library, too.
	test -n "$old_library" && staticlibs+=" $dir/$old_library"
	;;

      *.lo)
	# Install (i.e. copy) a libtool object.

	# Figure out destination file name, if it wasn't already specified.
	if test -n "$destname"; then
	  destfile="$destdir/$destname"
	else
	  func_basename "$file"
	  destfile="$func_basename_result"
	  destfile="$destdir/$destfile"
	fi

	# Deduce the name of the destination old-style object file.
	case $destfile in
	*.lo)
	  func_lo2o "$destfile"
	  staticdest=$func_lo2o_result
	  ;;
	*.$objext)
	  staticdest="$destfile"
	  destfile=
	  ;;
	*)
	  func_fatal_help "cannot copy a libtool object to \`$destfile'"
	  ;;
	esac

	# Install the libtool object if requested.
	test -n "$destfile" && \
	  func_show_eval "$install_prog $file $destfile" 'exit $?'

	# Install the old object if enabled.
	if test "$build_old_libs" = yes; then
	  # Deduce the name of the old-style object file.
	  func_lo2o "$file"
	  staticobj=$func_lo2o_result
	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
	fi
	exit $EXIT_SUCCESS
	;;

      *)
	# Figure out destination file name, if it wasn't already specified.
	if test -n "$destname"; then
	  destfile="$destdir/$destname"
	else
	  func_basename "$file"
	  destfile="$func_basename_result"
	  destfile="$destdir/$destfile"
	fi

	# If the file is missing, and there is a .exe on the end, strip it
	# because it is most likely a libtool script we actually want to
	# install
	stripped_ext=""
	case $file in
	  *.exe)
	    if test ! -f "$file"; then
	      func_stripname '' '.exe' "$file"
	      file=$func_stripname_result
	      stripped_ext=".exe"
	    fi
	    ;;
	esac

	# Do a test to see if this is really a libtool program.
	case $host in
	*cygwin* | *mingw*)
	    if func_ltwrapper_executable_p "$file"; then
	      func_ltwrapper_scriptname "$file"
	      wrapper=$func_ltwrapper_scriptname_result
	    else
	      func_stripname '' '.exe' "$file"
	      wrapper=$func_stripname_result
	    fi
	    ;;
	*)
	    wrapper=$file
	    ;;
	esac
	if func_ltwrapper_script_p "$wrapper"; then
	  notinst_deplibs=
	  relink_command=

	  func_source "$wrapper"

	  # Check the variables that should have been set.
	  test -z "$generated_by_libtool_version" && \
	    func_fatal_error "invalid libtool wrapper script \`$wrapper'"

	  finalize=yes
	  for lib in $notinst_deplibs; do
	    # Check to see that each library is installed.
	    libdir=
	    if test -f "$lib"; then
	      func_source "$lib"
	    fi
	    libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test
	    if test -n "$libdir" && test ! -f "$libfile"; then
	      func_warning "\`$lib' has not been installed in \`$libdir'"
	      finalize=no
	    fi
	  done

	  relink_command=
	  func_source "$wrapper"

	  outputname=
	  if test "$fast_install" = no && test -n "$relink_command"; then
	    $opt_dry_run || {
	      if test "$finalize" = yes; then
	        tmpdir=`func_mktempdir`
		func_basename "$file$stripped_ext"
		file="$func_basename_result"
	        outputname="$tmpdir/$file"
	        # Replace the output file specification.
	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`

	        $opt_silent || {
	          func_quote_for_expand "$relink_command"
		  eval "func_echo $func_quote_for_expand_result"
	        }
	        if eval "$relink_command"; then :
	          else
		  func_error "error: relink \`$file' with the above command before installing it"
		  $opt_dry_run || ${RM}r "$tmpdir"
		  continue
	        fi
	        file="$outputname"
	      else
	        func_warning "cannot relink \`$file'"
	      fi
	    }
	  else
	    # Install the binary that we compiled earlier.
	    file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
	  fi
	fi

	# remove .exe since cygwin /usr/bin/install will append another
	# one anyway
	case $install_prog,$host in
	*/usr/bin/install*,*cygwin*)
	  case $file:$destfile in
	  *.exe:*.exe)
	    # this is ok
	    ;;
	  *.exe:*)
	    destfile=$destfile.exe
	    ;;
	  *:*.exe)
	    func_stripname '' '.exe' "$destfile"
	    destfile=$func_stripname_result
	    ;;
	  esac
	  ;;
	esac
	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
	$opt_dry_run || if test -n "$outputname"; then
	  ${RM}r "$tmpdir"
	fi
	;;
      esac
    done

    for file in $staticlibs; do
      func_basename "$file"
      name="$func_basename_result"

      # Set up the ranlib parameters.
      oldlib="$destdir/$name"
      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
      tool_oldlib=$func_to_tool_file_result

      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'

      if test -n "$stripme" && test -n "$old_striplib"; then
	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
      fi

      # Do each command in the postinstall commands.
      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
    done

    test -n "$future_libdirs" && \
      func_warning "remember to run \`$progname --finish$future_libdirs'"

    if test -n "$current_libdirs"; then
      # Maybe just do a dry run.
      $opt_dry_run && current_libdirs=" -n$current_libdirs"
      exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
    else
      exit $EXIT_SUCCESS
    fi
}

test "$opt_mode" = install && func_mode_install ${1+"$@"}


# func_generate_dlsyms outputname originator pic_p
# Extract symbols from dlprefiles and create ${outputname}S.o with
# a dlpreopen symbol table.
func_generate_dlsyms ()
{
    $opt_debug
    my_outputname="$1"
    my_originator="$2"
    my_pic_p="${3-no}"
    my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
    my_dlsyms=

    if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
      if test -n "$NM" && test -n "$global_symbol_pipe"; then
	my_dlsyms="${my_outputname}S.c"
      else
	func_error "not configured to extract global symbols from dlpreopened files"
      fi
    fi

    if test -n "$my_dlsyms"; then
      case $my_dlsyms in
      "") ;;
      *.c)
	# Discover the nlist of each of the dlfiles.
	nlist="$output_objdir/${my_outputname}.nm"

	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"

	# Parse the name list into a source file.
	func_verbose "creating $output_objdir/$my_dlsyms"

	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */

#ifdef __cplusplus
extern \"C\" {
#endif

#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
#endif

/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
/* DATA imports from DLLs on WIN32 con't be const, because runtime
   relocations are performed -- see ld's documentation on pseudo-relocs.  */
# define LT_DLSYM_CONST
#elif defined(__osf__)
/* This system does not cope well with relocations in const data.  */
# define LT_DLSYM_CONST
#else
# define LT_DLSYM_CONST const
#endif

/* External symbol declarations for the compiler. */\
"

	if test "$dlself" = yes; then
	  func_verbose "generating symbol list for \`$output'"

	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"

	  # Add our own program objects to the symbol list.
	  progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
	  for progfile in $progfiles; do
	    func_to_tool_file "$progfile" func_convert_file_msys_to_w32
	    func_verbose "extracting global C symbols from \`$func_to_tool_file_result'"
	    $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
	  done

	  if test -n "$exclude_expsyms"; then
	    $opt_dry_run || {
	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
	      eval '$MV "$nlist"T "$nlist"'
	    }
	  fi

	  if test -n "$export_symbols_regex"; then
	    $opt_dry_run || {
	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
	      eval '$MV "$nlist"T "$nlist"'
	    }
	  fi

	  # Prepare the list of exported symbols
	  if test -z "$export_symbols"; then
	    export_symbols="$output_objdir/$outputname.exp"
	    $opt_dry_run || {
	      $RM $export_symbols
	      eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
	      case $host in
	      *cygwin* | *mingw* | *cegcc* )
                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
	        ;;
	      esac
	    }
	  else
	    $opt_dry_run || {
	      eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
	      eval '$MV "$nlist"T "$nlist"'
	      case $host in
	        *cygwin* | *mingw* | *cegcc* )
	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
	          ;;
	      esac
	    }
	  fi
	fi

	for dlprefile in $dlprefiles; do
	  func_verbose "extracting global C symbols from \`$dlprefile'"
	  func_basename "$dlprefile"
	  name="$func_basename_result"
          case $host in
	    *cygwin* | *mingw* | *cegcc* )
	      # if an import library, we need to obtain dlname
	      if func_win32_import_lib_p "$dlprefile"; then
	        func_tr_sh "$dlprefile"
	        eval "curr_lafile=\$libfile_$func_tr_sh_result"
	        dlprefile_dlbasename=""
	        if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
	          # Use subshell, to avoid clobbering current variable values
	          dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
	          if test -n "$dlprefile_dlname" ; then
	            func_basename "$dlprefile_dlname"
	            dlprefile_dlbasename="$func_basename_result"
	          else
	            # no lafile. user explicitly requested -dlpreopen .
	            $sharedlib_from_linklib_cmd "$dlprefile"
	            dlprefile_dlbasename=$sharedlib_from_linklib_result
	          fi
	        fi
	        $opt_dry_run || {
	          if test -n "$dlprefile_dlbasename" ; then
	            eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
	          else
	            func_warning "Could not compute DLL name from $name"
	            eval '$ECHO ": $name " >> "$nlist"'
	          fi
	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
	            $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
	        }
	      else # not an import lib
	        $opt_dry_run || {
	          eval '$ECHO ": $name " >> "$nlist"'
	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
	        }
	      fi
	    ;;
	    *)
	      $opt_dry_run || {
	        eval '$ECHO ": $name " >> "$nlist"'
	        func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
	        eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
	      }
	    ;;
          esac
	done

	$opt_dry_run || {
	  # Make sure we have at least an empty file.
	  test -f "$nlist" || : > "$nlist"

	  if test -n "$exclude_expsyms"; then
	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
	    $MV "$nlist"T "$nlist"
	  fi

	  # Try sorting and uniquifying the output.
	  if $GREP -v "^: " < "$nlist" |
	      if sort -k 3 /dev/null 2>&1; then
		sort -k 3
	      else
		sort +2
	      fi |
	      uniq > "$nlist"S; then
	    :
	  else
	    $GREP -v "^: " < "$nlist" > "$nlist"S
	  fi

	  if test -f "$nlist"S; then
	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
	  else
	    echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
	  fi

	  echo >> "$output_objdir/$my_dlsyms" "\

/* The mapping between symbol names and symbols.  */
typedef struct {
  const char *name;
  void *address;
} lt_dlsymlist;
extern LT_DLSYM_CONST lt_dlsymlist
lt_${my_prefix}_LTX_preloaded_symbols[];
LT_DLSYM_CONST lt_dlsymlist
lt_${my_prefix}_LTX_preloaded_symbols[] =
{\
  { \"$my_originator\", (void *) 0 },"

	  case $need_lib_prefix in
	  no)
	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
	    ;;
	  *)
	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
	    ;;
	  esac
	  echo >> "$output_objdir/$my_dlsyms" "\
  {0, (void *) 0}
};

/* This works around a problem in FreeBSD linker */
#ifdef FREEBSD_WORKAROUND
static const void *lt_preloaded_setup() {
  return lt_${my_prefix}_LTX_preloaded_symbols;
}
#endif

#ifdef __cplusplus
}
#endif\
"
	} # !$opt_dry_run

	pic_flag_for_symtable=
	case "$compile_command " in
	*" -static "*) ;;
	*)
	  case $host in
	  # compiling the symbol table file with pic_flag works around
	  # a FreeBSD bug that causes programs to crash when -lm is
	  # linked before any other PIC object.  But we must not use
	  # pic_flag when linking with -static.  The problem exists in
	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
	  *-*-hpux*)
	    pic_flag_for_symtable=" $pic_flag"  ;;
	  *)
	    if test "X$my_pic_p" != Xno; then
	      pic_flag_for_symtable=" $pic_flag"
	    fi
	    ;;
	  esac
	  ;;
	esac
	symtab_cflags=
	for arg in $LTCFLAGS; do
	  case $arg in
	  -pie | -fpie | -fPIE) ;;
	  *) symtab_cflags+=" $arg" ;;
	  esac
	done

	# Now compile the dynamic symbol file.
	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'

	# Clean up the generated files.
	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'

	# Transform the symbol file into the correct name.
	symfileobj="$output_objdir/${my_outputname}S.$objext"
	case $host in
	*cygwin* | *mingw* | *cegcc* )
	  if test -f "$output_objdir/$my_outputname.def"; then
	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
	  else
	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	  fi
	  ;;
	*)
	  compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	  finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
	  ;;
	esac
	;;
      *)
	func_fatal_error "unknown suffix for \`$my_dlsyms'"
	;;
      esac
    else
      # We keep going just in case the user didn't refer to
      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
      # really was required.

      # Nullify the symbol file.
      compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
      finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
    fi
}

# func_win32_libid arg
# return the library type of file 'arg'
#
# Need a lot of goo to handle *both* DLLs and import libs
# Has to be a shell function in order to 'eat' the argument
# that is supplied when $file_magic_command is called.
# Despite the name, also deal with 64 bit binaries.
func_win32_libid ()
{
  $opt_debug
  win32_libid_type="unknown"
  win32_fileres=`file -L $1 2>/dev/null`
  case $win32_fileres in
  *ar\ archive\ import\ library*) # definitely import
    win32_libid_type="x86 archive import"
    ;;
  *ar\ archive*) # could be an import, or static
    # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
       $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
      func_to_tool_file "$1" func_convert_file_msys_to_w32
      win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
	$SED -n -e '
	    1,100{
		/ I /{
		    s,.*,import,
		    p
		    q
		}
	    }'`
      case $win32_nmres in
      import*)  win32_libid_type="x86 archive import";;
      *)        win32_libid_type="x86 archive static";;
      esac
    fi
    ;;
  *DLL*)
    win32_libid_type="x86 DLL"
    ;;
  *executable*) # but shell scripts are "executable" too...
    case $win32_fileres in
    *MS\ Windows\ PE\ Intel*)
      win32_libid_type="x86 DLL"
      ;;
    esac
    ;;
  esac
  $ECHO "$win32_libid_type"
}

# func_cygming_dll_for_implib ARG
#
# Platform-specific function to extract the
# name of the DLL associated with the specified
# import library ARG.
# Invoked by eval'ing the libtool variable
#    $sharedlib_from_linklib_cmd
# Result is available in the variable
#    $sharedlib_from_linklib_result
func_cygming_dll_for_implib ()
{
  $opt_debug
  sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
}

# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
#
# The is the core of a fallback implementation of a
# platform-specific function to extract the name of the
# DLL associated with the specified import library LIBNAME.
#
# SECTION_NAME is either .idata$6 or .idata$7, depending
# on the platform and compiler that created the implib.
#
# Echos the name of the DLL associated with the
# specified import library.
func_cygming_dll_for_implib_fallback_core ()
{
  $opt_debug
  match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
  $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
    $SED '/^Contents of section '"$match_literal"':/{
      # Place marker at beginning of archive member dllname section
      s/.*/====MARK====/
      p
      d
    }
    # These lines can sometimes be longer than 43 characters, but
    # are always uninteresting
    /:[	 ]*file format pe[i]\{,1\}-/d
    /^In archive [^:]*:/d
    # Ensure marker is printed
    /^====MARK====/p
    # Remove all lines with less than 43 characters
    /^.\{43\}/!d
    # From remaining lines, remove first 43 characters
    s/^.\{43\}//' |
    $SED -n '
      # Join marker and all lines until next marker into a single line
      /^====MARK====/ b para
      H
      $ b para
      b
      :para
      x
      s/\n//g
      # Remove the marker
      s/^====MARK====//
      # Remove trailing dots and whitespace
      s/[\. \t]*$//
      # Print
      /./p' |
    # we now have a list, one entry per line, of the stringified
    # contents of the appropriate section of all members of the
    # archive which possess that section. Heuristic: eliminate
    # all those which have a first or second character that is
    # a '.' (that is, objdump's representation of an unprintable
    # character.) This should work for all archives with less than
    # 0x302f exports -- but will fail for DLLs whose name actually
    # begins with a literal '.' or a single character followed by
    # a '.'.
    #
    # Of those that remain, print the first one.
    $SED -e '/^\./d;/^.\./d;q'
}

# func_cygming_gnu_implib_p ARG
# This predicate returns with zero status (TRUE) if
# ARG is a GNU/binutils-style import library. Returns
# with nonzero status (FALSE) otherwise.
func_cygming_gnu_implib_p ()
{
  $opt_debug
  func_to_tool_file "$1" func_convert_file_msys_to_w32
  func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
  test -n "$func_cygming_gnu_implib_tmp"
}

# func_cygming_ms_implib_p ARG
# This predicate returns with zero status (TRUE) if
# ARG is an MS-style import library. Returns
# with nonzero status (FALSE) otherwise.
func_cygming_ms_implib_p ()
{
  $opt_debug
  func_to_tool_file "$1" func_convert_file_msys_to_w32
  func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
  test -n "$func_cygming_ms_implib_tmp"
}

# func_cygming_dll_for_implib_fallback ARG
# Platform-specific function to extract the
# name of the DLL associated with the specified
# import library ARG.
#
# This fallback implementation is for use when $DLLTOOL
# does not support the --identify-strict option.
# Invoked by eval'ing the libtool variable
#    $sharedlib_from_linklib_cmd
# Result is available in the variable
#    $sharedlib_from_linklib_result
func_cygming_dll_for_implib_fallback ()
{
  $opt_debug
  if func_cygming_gnu_implib_p "$1" ; then
    # binutils import library
    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
  elif func_cygming_ms_implib_p "$1" ; then
    # ms-generated import library
    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
  else
    # unknown
    sharedlib_from_linklib_result=""
  fi
}


# func_extract_an_archive dir oldlib
func_extract_an_archive ()
{
    $opt_debug
    f_ex_an_ar_dir="$1"; shift
    f_ex_an_ar_oldlib="$1"
    if test "$lock_old_archive_extraction" = yes; then
      lockfile=$f_ex_an_ar_oldlib.lock
      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
	func_echo "Waiting for $lockfile to be removed"
	sleep 2
      done
    fi
    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
		   'stat=$?; rm -f "$lockfile"; exit $stat'
    if test "$lock_old_archive_extraction" = yes; then
      $opt_dry_run || rm -f "$lockfile"
    fi
    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
     :
    else
      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
    fi
}


# func_extract_archives gentop oldlib ...
func_extract_archives ()
{
    $opt_debug
    my_gentop="$1"; shift
    my_oldlibs=${1+"$@"}
    my_oldobjs=""
    my_xlib=""
    my_xabs=""
    my_xdir=""

    for my_xlib in $my_oldlibs; do
      # Extract the objects.
      case $my_xlib in
	[\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
	*) my_xabs=`pwd`"/$my_xlib" ;;
      esac
      func_basename "$my_xlib"
      my_xlib="$func_basename_result"
      my_xlib_u=$my_xlib
      while :; do
        case " $extracted_archives " in
	*" $my_xlib_u "*)
	  func_arith $extracted_serial + 1
	  extracted_serial=$func_arith_result
	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
	*) break ;;
	esac
      done
      extracted_archives="$extracted_archives $my_xlib_u"
      my_xdir="$my_gentop/$my_xlib_u"

      func_mkdir_p "$my_xdir"

      case $host in
      *-darwin*)
	func_verbose "Extracting $my_xabs"
	# Do not bother doing anything if just a dry run
	$opt_dry_run || {
	  darwin_orig_dir=`pwd`
	  cd $my_xdir || exit $?
	  darwin_archive=$my_xabs
	  darwin_curdir=`pwd`
	  darwin_base_archive=`basename "$darwin_archive"`
	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
	  if test -n "$darwin_arches"; then
	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
	    darwin_arch=
	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
	    for darwin_arch in  $darwin_arches ; do
	      func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
	      $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
	      cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
	      func_extract_an_archive "`pwd`" "${darwin_base_archive}"
	      cd "$darwin_curdir"
	      $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
	    done # $darwin_arches
            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
	    darwin_file=
	    darwin_files=
	    for darwin_file in $darwin_filelist; do
	      darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
	      $LIPO -create -output "$darwin_file" $darwin_files
	    done # $darwin_filelist
	    $RM -rf unfat-$$
	    cd "$darwin_orig_dir"
	  else
	    cd $darwin_orig_dir
	    func_extract_an_archive "$my_xdir" "$my_xabs"
	  fi # $darwin_arches
	} # !$opt_dry_run
	;;
      *)
        func_extract_an_archive "$my_xdir" "$my_xabs"
	;;
      esac
      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
    done

    func_extract_archives_result="$my_oldobjs"
}


# func_emit_wrapper [arg=no]
#
# Emit a libtool wrapper script on stdout.
# Don't directly open a file because we may want to
# incorporate the script contents within a cygwin/mingw
# wrapper executable.  Must ONLY be called from within
# func_mode_link because it depends on a number of variables
# set therein.
#
# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
# variable will take.  If 'yes', then the emitted script
# will assume that the directory in which it is stored is
# the $objdir directory.  This is a cygwin/mingw-specific
# behavior.
func_emit_wrapper ()
{
	func_emit_wrapper_arg1=${1-no}

	$ECHO "\
#! $SHELL

# $output - temporary wrapper script for $objdir/$outputname
# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
#
# The $output program cannot be directly executed until all the libtool
# libraries that it depends on are installed.
#
# This wrapper script should never be moved out of the build directory.
# If it is, it will not operate correctly.

# Sed substitution that helps us do robust quoting.  It backslashifies
# metacharacters that are still active within double-quoted strings.
sed_quote_subst='$sed_quote_subst'

# Be Bourne compatible
if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
  emulate sh
  NULLCMD=:
  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '\${1+\"\$@\"}'='\"\$@\"'
  setopt NO_GLOB_SUBST
else
  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
fi
BIN_SH=xpg4; export BIN_SH # for Tru64
DUALCASE=1; export DUALCASE # for MKS sh

# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

relink_command=\"$relink_command\"

# This environment variable determines our operation mode.
if test \"\$libtool_install_magic\" = \"$magic\"; then
  # install mode needs the following variables:
  generated_by_libtool_version='$macro_version'
  notinst_deplibs='$notinst_deplibs'
else
  # When we are sourced in execute mode, \$file and \$ECHO are already set.
  if test \"\$libtool_execute_magic\" != \"$magic\"; then
    file=\"\$0\""

    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
    $ECHO "\

# A function that is used when there is no print builtin or printf.
func_fallback_echo ()
{
  eval 'cat <<_LTECHO_EOF
\$1
_LTECHO_EOF'
}
    ECHO=\"$qECHO\"
  fi

# Very basic option parsing. These options are (a) specific to
# the libtool wrapper, (b) are identical between the wrapper
# /script/ and the wrapper /executable/ which is used only on
# windows platforms, and (c) all begin with the string "--lt-"
# (application programs are unlikely to have options which match
# this pattern).
#
# There are only two supported options: --lt-debug and
# --lt-dump-script. There is, deliberately, no --lt-help.
#
# The first argument to this parsing function should be the
# script's $0 value, followed by "$@".
lt_option_debug=
func_parse_lt_options ()
{
  lt_script_arg0=\$0
  shift
  for lt_opt
  do
    case \"\$lt_opt\" in
    --lt-debug) lt_option_debug=1 ;;
    --lt-dump-script)
        lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
        test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
        lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
        cat \"\$lt_dump_D/\$lt_dump_F\"
        exit 0
      ;;
    --lt-*)
        \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
        exit 1
      ;;
    esac
  done

  # Print the debug banner immediately:
  if test -n \"\$lt_option_debug\"; then
    echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2
  fi
}

# Used when --lt-debug. Prints its arguments to stdout
# (redirection is the responsibility of the caller)
func_lt_dump_args ()
{
  lt_dump_args_N=1;
  for lt_arg
  do
    \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\"
    lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
  done
}

# Core function for launching the target application
func_exec_program_core ()
{
"
  case $host in
  # Backslashes separate directories on plain windows
  *-*-mingw | *-*-os2* | *-cegcc*)
    $ECHO "\
      if test -n \"\$lt_option_debug\"; then
        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2
        func_lt_dump_args \${1+\"\$@\"} 1>&2
      fi
      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
"
    ;;

  *)
    $ECHO "\
      if test -n \"\$lt_option_debug\"; then
        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2
        func_lt_dump_args \${1+\"\$@\"} 1>&2
      fi
      exec \"\$progdir/\$program\" \${1+\"\$@\"}
"
    ;;
  esac
  $ECHO "\
      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
      exit 1
}

# A function to encapsulate launching the target application
# Strips options in the --lt-* namespace from \$@ and
# launches target application with the remaining arguments.
func_exec_program ()
{
  case \" \$* \" in
  *\\ --lt-*)
    for lt_wr_arg
    do
      case \$lt_wr_arg in
      --lt-*) ;;
      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
      esac
      shift
    done ;;
  esac
  func_exec_program_core \${1+\"\$@\"}
}

  # Parse options
  func_parse_lt_options \"\$0\" \${1+\"\$@\"}

  # Find the directory that this script lives in.
  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
  test \"x\$thisdir\" = \"x\$file\" && thisdir=.

  # Follow symbolic links until we get to the real thisdir.
  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
  while test -n \"\$file\"; do
    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`

    # If there was a directory component, then change thisdir.
    if test \"x\$destdir\" != \"x\$file\"; then
      case \"\$destdir\" in
      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
      *) thisdir=\"\$thisdir/\$destdir\" ;;
      esac
    fi

    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
  done

  # Usually 'no', except on cygwin/mingw when embedded into
  # the cwrapper.
  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
    # special case for '.'
    if test \"\$thisdir\" = \".\"; then
      thisdir=\`pwd\`
    fi
    # remove .libs from thisdir
    case \"\$thisdir\" in
    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
    $objdir )   thisdir=. ;;
    esac
  fi

  # Try to get the absolute directory name.
  absdir=\`cd \"\$thisdir\" && pwd\`
  test -n \"\$absdir\" && thisdir=\"\$absdir\"
"

	if test "$fast_install" = yes; then
	  $ECHO "\
  program=lt-'$outputname'$exeext
  progdir=\"\$thisdir/$objdir\"

  if test ! -f \"\$progdir/\$program\" ||
     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
       test \"X\$file\" != \"X\$progdir/\$program\"; }; then

    file=\"\$\$-\$program\"

    if test ! -d \"\$progdir\"; then
      $MKDIR \"\$progdir\"
    else
      $RM \"\$progdir/\$file\"
    fi"

	  $ECHO "\

    # relink executable if necessary
    if test -n \"\$relink_command\"; then
      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
      else
	$ECHO \"\$relink_command_output\" >&2
	$RM \"\$progdir/\$file\"
	exit 1
      fi
    fi

    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
    { $RM \"\$progdir/\$program\";
      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
    $RM \"\$progdir/\$file\"
  fi"
	else
	  $ECHO "\
  program='$outputname'
  progdir=\"\$thisdir/$objdir\"
"
	fi

	$ECHO "\

  if test -f \"\$progdir/\$program\"; then"

	# fixup the dll searchpath if we need to.
	#
	# Fix the DLL searchpath if we need to.  Do this before prepending
	# to shlibpath, because on Windows, both are PATH and uninstalled
	# libraries must come first.
	if test -n "$dllsearchpath"; then
	  $ECHO "\
    # Add the dll search path components to the executable PATH
    PATH=$dllsearchpath:\$PATH
"
	fi

	# Export our shlibpath_var if we have one.
	if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
	  $ECHO "\
    # Add our own library path to $shlibpath_var
    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"

    # Some systems cannot cope with colon-terminated $shlibpath_var
    # The second colon is a workaround for a bug in BeOS R4 sed
    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`

    export $shlibpath_var
"
	fi

	$ECHO "\
    if test \"\$libtool_execute_magic\" != \"$magic\"; then
      # Run the actual program with our arguments.
      func_exec_program \${1+\"\$@\"}
    fi
  else
    # The program doesn't exist.
    \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
    exit 1
  fi
fi\
"
}


# func_emit_cwrapperexe_src
# emit the source code for a wrapper executable on stdout
# Must ONLY be called from within func_mode_link because
# it depends on a number of variable set therein.
func_emit_cwrapperexe_src ()
{
	cat <
#include 
#ifdef _MSC_VER
# include 
# include 
# include 
#else
# include 
# include 
# ifdef __CYGWIN__
#  include 
# endif
#endif
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

/* declarations of non-ANSI functions */
#if defined(__MINGW32__)
# ifdef __STRICT_ANSI__
int _putenv (const char *);
# endif
#elif defined(__CYGWIN__)
# ifdef __STRICT_ANSI__
char *realpath (const char *, char *);
int putenv (char *);
int setenv (const char *, const char *, int);
# endif
/* #elif defined (other platforms) ... */
#endif

/* portability defines, excluding path handling macros */
#if defined(_MSC_VER)
# define setmode _setmode
# define stat    _stat
# define chmod   _chmod
# define getcwd  _getcwd
# define putenv  _putenv
# define S_IXUSR _S_IEXEC
# ifndef _INTPTR_T_DEFINED
#  define _INTPTR_T_DEFINED
#  define intptr_t int
# endif
#elif defined(__MINGW32__)
# define setmode _setmode
# define stat    _stat
# define chmod   _chmod
# define getcwd  _getcwd
# define putenv  _putenv
#elif defined(__CYGWIN__)
# define HAVE_SETENV
# define FOPEN_WB "wb"
/* #elif defined (other platforms) ... */
#endif

#if defined(PATH_MAX)
# define LT_PATHMAX PATH_MAX
#elif defined(MAXPATHLEN)
# define LT_PATHMAX MAXPATHLEN
#else
# define LT_PATHMAX 1024
#endif

#ifndef S_IXOTH
# define S_IXOTH 0
#endif
#ifndef S_IXGRP
# define S_IXGRP 0
#endif

/* path handling portability macros */
#ifndef DIR_SEPARATOR
# define DIR_SEPARATOR '/'
# define PATH_SEPARATOR ':'
#endif

#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
  defined (__OS2__)
# define HAVE_DOS_BASED_FILE_SYSTEM
# define FOPEN_WB "wb"
# ifndef DIR_SEPARATOR_2
#  define DIR_SEPARATOR_2 '\\'
# endif
# ifndef PATH_SEPARATOR_2
#  define PATH_SEPARATOR_2 ';'
# endif
#endif

#ifndef DIR_SEPARATOR_2
# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
#else /* DIR_SEPARATOR_2 */
# define IS_DIR_SEPARATOR(ch) \
	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
#endif /* DIR_SEPARATOR_2 */

#ifndef PATH_SEPARATOR_2
# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
#else /* PATH_SEPARATOR_2 */
# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
#endif /* PATH_SEPARATOR_2 */

#ifndef FOPEN_WB
# define FOPEN_WB "w"
#endif
#ifndef _O_BINARY
# define _O_BINARY 0
#endif

#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
#define XFREE(stale) do { \
  if (stale) { free ((void *) stale); stale = 0; } \
} while (0)

#if defined(LT_DEBUGWRAPPER)
static int lt_debug = 1;
#else
static int lt_debug = 0;
#endif

const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */

void *xmalloc (size_t num);
char *xstrdup (const char *string);
const char *base_name (const char *name);
char *find_executable (const char *wrapper);
char *chase_symlinks (const char *pathspec);
int make_executable (const char *path);
int check_executable (const char *path);
char *strendzap (char *str, const char *pat);
void lt_debugprintf (const char *file, int line, const char *fmt, ...);
void lt_fatal (const char *file, int line, const char *message, ...);
static const char *nonnull (const char *s);
static const char *nonempty (const char *s);
void lt_setenv (const char *name, const char *value);
char *lt_extend_str (const char *orig_value, const char *add, int to_end);
void lt_update_exe_path (const char *name, const char *value);
void lt_update_lib_path (const char *name, const char *value);
char **prepare_spawn (char **argv);
void lt_dump_script (FILE *f);
EOF

	    cat <= 0)
      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
    return 1;
  else
    return 0;
}

int
make_executable (const char *path)
{
  int rval = 0;
  struct stat st;

  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
                  nonempty (path));
  if ((!path) || (!*path))
    return 0;

  if (stat (path, &st) >= 0)
    {
      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
    }
  return rval;
}

/* Searches for the full path of the wrapper.  Returns
   newly allocated full path name if found, NULL otherwise
   Does not chase symlinks, even on platforms that support them.
*/
char *
find_executable (const char *wrapper)
{
  int has_slash = 0;
  const char *p;
  const char *p_next;
  /* static buffer for getcwd */
  char tmp[LT_PATHMAX + 1];
  int tmp_len;
  char *concat_name;

  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
                  nonempty (wrapper));

  if ((wrapper == NULL) || (*wrapper == '\0'))
    return NULL;

  /* Absolute path? */
#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
    {
      concat_name = xstrdup (wrapper);
      if (check_executable (concat_name))
	return concat_name;
      XFREE (concat_name);
    }
  else
    {
#endif
      if (IS_DIR_SEPARATOR (wrapper[0]))
	{
	  concat_name = xstrdup (wrapper);
	  if (check_executable (concat_name))
	    return concat_name;
	  XFREE (concat_name);
	}
#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
    }
#endif

  for (p = wrapper; *p; p++)
    if (*p == '/')
      {
	has_slash = 1;
	break;
      }
  if (!has_slash)
    {
      /* no slashes; search PATH */
      const char *path = getenv ("PATH");
      if (path != NULL)
	{
	  for (p = path; *p; p = p_next)
	    {
	      const char *q;
	      size_t p_len;
	      for (q = p; *q; q++)
		if (IS_PATH_SEPARATOR (*q))
		  break;
	      p_len = q - p;
	      p_next = (*q == '\0' ? q : q + 1);
	      if (p_len == 0)
		{
		  /* empty path: current directory */
		  if (getcwd (tmp, LT_PATHMAX) == NULL)
		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
                              nonnull (strerror (errno)));
		  tmp_len = strlen (tmp);
		  concat_name =
		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
		  memcpy (concat_name, tmp, tmp_len);
		  concat_name[tmp_len] = '/';
		  strcpy (concat_name + tmp_len + 1, wrapper);
		}
	      else
		{
		  concat_name =
		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
		  memcpy (concat_name, p, p_len);
		  concat_name[p_len] = '/';
		  strcpy (concat_name + p_len + 1, wrapper);
		}
	      if (check_executable (concat_name))
		return concat_name;
	      XFREE (concat_name);
	    }
	}
      /* not found in PATH; assume curdir */
    }
  /* Relative path | not found in path: prepend cwd */
  if (getcwd (tmp, LT_PATHMAX) == NULL)
    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
              nonnull (strerror (errno)));
  tmp_len = strlen (tmp);
  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
  memcpy (concat_name, tmp, tmp_len);
  concat_name[tmp_len] = '/';
  strcpy (concat_name + tmp_len + 1, wrapper);

  if (check_executable (concat_name))
    return concat_name;
  XFREE (concat_name);
  return NULL;
}

char *
chase_symlinks (const char *pathspec)
{
#ifndef S_ISLNK
  return xstrdup (pathspec);
#else
  char buf[LT_PATHMAX];
  struct stat s;
  char *tmp_pathspec = xstrdup (pathspec);
  char *p;
  int has_symlinks = 0;
  while (strlen (tmp_pathspec) && !has_symlinks)
    {
      lt_debugprintf (__FILE__, __LINE__,
		      "checking path component for symlinks: %s\n",
		      tmp_pathspec);
      if (lstat (tmp_pathspec, &s) == 0)
	{
	  if (S_ISLNK (s.st_mode) != 0)
	    {
	      has_symlinks = 1;
	      break;
	    }

	  /* search backwards for last DIR_SEPARATOR */
	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
	    p--;
	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
	    {
	      /* no more DIR_SEPARATORS left */
	      break;
	    }
	  *p = '\0';
	}
      else
	{
	  lt_fatal (__FILE__, __LINE__,
		    "error accessing file \"%s\": %s",
		    tmp_pathspec, nonnull (strerror (errno)));
	}
    }
  XFREE (tmp_pathspec);

  if (!has_symlinks)
    {
      return xstrdup (pathspec);
    }

  tmp_pathspec = realpath (pathspec, buf);
  if (tmp_pathspec == 0)
    {
      lt_fatal (__FILE__, __LINE__,
		"could not follow symlinks for %s", pathspec);
    }
  return xstrdup (tmp_pathspec);
#endif
}

char *
strendzap (char *str, const char *pat)
{
  size_t len, patlen;

  assert (str != NULL);
  assert (pat != NULL);

  len = strlen (str);
  patlen = strlen (pat);

  if (patlen <= len)
    {
      str += len - patlen;
      if (strcmp (str, pat) == 0)
	*str = '\0';
    }
  return str;
}

void
lt_debugprintf (const char *file, int line, const char *fmt, ...)
{
  va_list args;
  if (lt_debug)
    {
      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
      va_start (args, fmt);
      (void) vfprintf (stderr, fmt, args);
      va_end (args);
    }
}

static void
lt_error_core (int exit_status, const char *file,
	       int line, const char *mode,
	       const char *message, va_list ap)
{
  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
  vfprintf (stderr, message, ap);
  fprintf (stderr, ".\n");

  if (exit_status >= 0)
    exit (exit_status);
}

void
lt_fatal (const char *file, int line, const char *message, ...)
{
  va_list ap;
  va_start (ap, message);
  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
  va_end (ap);
}

static const char *
nonnull (const char *s)
{
  return s ? s : "(null)";
}

static const char *
nonempty (const char *s)
{
  return (s && !*s) ? "(empty)" : nonnull (s);
}

void
lt_setenv (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_setenv) setting '%s' to '%s'\n",
                  nonnull (name), nonnull (value));
  {
#ifdef HAVE_SETENV
    /* always make a copy, for consistency with !HAVE_SETENV */
    char *str = xstrdup (value);
    setenv (name, str, 1);
#else
    int len = strlen (name) + 1 + strlen (value) + 1;
    char *str = XMALLOC (char, len);
    sprintf (str, "%s=%s", name, value);
    if (putenv (str) != EXIT_SUCCESS)
      {
        XFREE (str);
      }
#endif
  }
}

char *
lt_extend_str (const char *orig_value, const char *add, int to_end)
{
  char *new_value;
  if (orig_value && *orig_value)
    {
      int orig_value_len = strlen (orig_value);
      int add_len = strlen (add);
      new_value = XMALLOC (char, add_len + orig_value_len + 1);
      if (to_end)
        {
          strcpy (new_value, orig_value);
          strcpy (new_value + orig_value_len, add);
        }
      else
        {
          strcpy (new_value, add);
          strcpy (new_value + add_len, orig_value);
        }
    }
  else
    {
      new_value = xstrdup (add);
    }
  return new_value;
}

void
lt_update_exe_path (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
                  nonnull (name), nonnull (value));

  if (name && *name && value && *value)
    {
      char *new_value = lt_extend_str (getenv (name), value, 0);
      /* some systems can't cope with a ':'-terminated path #' */
      int len = strlen (new_value);
      while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
        {
          new_value[len-1] = '\0';
        }
      lt_setenv (name, new_value);
      XFREE (new_value);
    }
}

void
lt_update_lib_path (const char *name, const char *value)
{
  lt_debugprintf (__FILE__, __LINE__,
		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
                  nonnull (name), nonnull (value));

  if (name && *name && value && *value)
    {
      char *new_value = lt_extend_str (getenv (name), value, 0);
      lt_setenv (name, new_value);
      XFREE (new_value);
    }
}

EOF
	    case $host_os in
	      mingw*)
		cat <<"EOF"

/* Prepares an argument vector before calling spawn().
   Note that spawn() does not by itself call the command interpreter
     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
         GetVersionEx(&v);
         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
      }) ? "cmd.exe" : "command.com").
   Instead it simply concatenates the arguments, separated by ' ', and calls
   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
   special way:
   - Space and tab are interpreted as delimiters. They are not treated as
     delimiters if they are surrounded by double quotes: "...".
   - Unescaped double quotes are removed from the input. Their only effect is
     that within double quotes, space and tab are treated like normal
     characters.
   - Backslashes not followed by double quotes are not special.
   - But 2*n+1 backslashes followed by a double quote become
     n backslashes followed by a double quote (n >= 0):
       \" -> "
       \\\" -> \"
       \\\\\" -> \\"
 */
#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
char **
prepare_spawn (char **argv)
{
  size_t argc;
  char **new_argv;
  size_t i;

  /* Count number of arguments.  */
  for (argc = 0; argv[argc] != NULL; argc++)
    ;

  /* Allocate new argument vector.  */
  new_argv = XMALLOC (char *, argc + 1);

  /* Put quoted arguments into the new argument vector.  */
  for (i = 0; i < argc; i++)
    {
      const char *string = argv[i];

      if (string[0] == '\0')
	new_argv[i] = xstrdup ("\"\"");
      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
	{
	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
	  size_t length;
	  unsigned int backslashes;
	  const char *s;
	  char *quoted_string;
	  char *p;

	  length = 0;
	  backslashes = 0;
	  if (quote_around)
	    length++;
	  for (s = string; *s != '\0'; s++)
	    {
	      char c = *s;
	      if (c == '"')
		length += backslashes + 1;
	      length++;
	      if (c == '\\')
		backslashes++;
	      else
		backslashes = 0;
	    }
	  if (quote_around)
	    length += backslashes + 1;

	  quoted_string = XMALLOC (char, length + 1);

	  p = quoted_string;
	  backslashes = 0;
	  if (quote_around)
	    *p++ = '"';
	  for (s = string; *s != '\0'; s++)
	    {
	      char c = *s;
	      if (c == '"')
		{
		  unsigned int j;
		  for (j = backslashes + 1; j > 0; j--)
		    *p++ = '\\';
		}
	      *p++ = c;
	      if (c == '\\')
		backslashes++;
	      else
		backslashes = 0;
	    }
	  if (quote_around)
	    {
	      unsigned int j;
	      for (j = backslashes; j > 0; j--)
		*p++ = '\\';
	      *p++ = '"';
	    }
	  *p = '\0';

	  new_argv[i] = quoted_string;
	}
      else
	new_argv[i] = (char *) string;
    }
  new_argv[argc] = NULL;

  return new_argv;
}
EOF
		;;
	    esac

            cat <<"EOF"
void lt_dump_script (FILE* f)
{
EOF
	    func_emit_wrapper yes |
	      $SED -n -e '
s/^\(.\{79\}\)\(..*\)/\1\
\2/
h
s/\([\\"]\)/\\\1/g
s/$/\\n/
s/\([^\n]*\).*/  fputs ("\1", f);/p
g
D'
            cat <<"EOF"
}
EOF
}
# end: func_emit_cwrapperexe_src

# func_win32_import_lib_p ARG
# True if ARG is an import lib, as indicated by $file_magic_cmd
func_win32_import_lib_p ()
{
    $opt_debug
    case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
    *import*) : ;;
    *) false ;;
    esac
}

# func_mode_link arg...
func_mode_link ()
{
    $opt_debug
    case $host in
    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
      # It is impossible to link a dll without this setting, and
      # we shouldn't force the makefile maintainer to figure out
      # which system we are compiling for in order to pass an extra
      # flag for every libtool invocation.
      # allow_undefined=no

      # FIXME: Unfortunately, there are problems with the above when trying
      # to make a dll which has undefined symbols, in which case not
      # even a static library is built.  For now, we need to specify
      # -no-undefined on the libtool link line when we can be certain
      # that all symbols are satisfied, otherwise we get a static library.
      allow_undefined=yes
      ;;
    *)
      allow_undefined=yes
      ;;
    esac
    libtool_args=$nonopt
    base_compile="$nonopt $@"
    compile_command=$nonopt
    finalize_command=$nonopt

    compile_rpath=
    finalize_rpath=
    compile_shlibpath=
    finalize_shlibpath=
    convenience=
    old_convenience=
    deplibs=
    old_deplibs=
    compiler_flags=
    linker_flags=
    dllsearchpath=
    lib_search_path=`pwd`
    inst_prefix_dir=
    new_inherited_linker_flags=

    avoid_version=no
    bindir=
    dlfiles=
    dlprefiles=
    dlself=no
    export_dynamic=no
    export_symbols=
    export_symbols_regex=
    generated=
    libobjs=
    ltlibs=
    module=no
    no_install=no
    objs=
    non_pic_objects=
    precious_files_regex=
    prefer_static_libs=no
    preload=no
    prev=
    prevarg=
    release=
    rpath=
    xrpath=
    perm_rpath=
    temp_rpath=
    thread_safe=no
    vinfo=
    vinfo_number=no
    weak_libs=
    single_module="${wl}-single_module"
    func_infer_tag $base_compile

    # We need to know -static, to get the right output filenames.
    for arg
    do
      case $arg in
      -shared)
	test "$build_libtool_libs" != yes && \
	  func_fatal_configuration "can not build a shared library"
	build_old_libs=no
	break
	;;
      -all-static | -static | -static-libtool-libs)
	case $arg in
	-all-static)
	  if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
	    func_warning "complete static linking is impossible in this configuration"
	  fi
	  if test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	  prefer_static_libs=yes
	  ;;
	-static)
	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	  prefer_static_libs=built
	  ;;
	-static-libtool-libs)
	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
	    dlopen_self=$dlopen_self_static
	  fi
	  prefer_static_libs=yes
	  ;;
	esac
	build_libtool_libs=no
	build_old_libs=yes
	break
	;;
      esac
    done

    # See if our shared archives depend on static archives.
    test -n "$old_archive_from_new_cmds" && build_old_libs=yes

    # Go through the arguments, transforming them on the way.
    while test "$#" -gt 0; do
      arg="$1"
      shift
      func_quote_for_eval "$arg"
      qarg=$func_quote_for_eval_unquoted_result
      libtool_args+=" $func_quote_for_eval_result"

      # If the previous option needs an argument, assign it.
      if test -n "$prev"; then
	case $prev in
	output)
	  compile_command+=" @OUTPUT@"
	  finalize_command+=" @OUTPUT@"
	  ;;
	esac

	case $prev in
	bindir)
	  bindir="$arg"
	  prev=
	  continue
	  ;;
	dlfiles|dlprefiles)
	  if test "$preload" = no; then
	    # Add the symbol object into the linking commands.
	    compile_command+=" @SYMFILE@"
	    finalize_command+=" @SYMFILE@"
	    preload=yes
	  fi
	  case $arg in
	  *.la | *.lo) ;;  # We handle these cases below.
	  force)
	    if test "$dlself" = no; then
	      dlself=needless
	      export_dynamic=yes
	    fi
	    prev=
	    continue
	    ;;
	  self)
	    if test "$prev" = dlprefiles; then
	      dlself=yes
	    elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
	      dlself=yes
	    else
	      dlself=needless
	      export_dynamic=yes
	    fi
	    prev=
	    continue
	    ;;
	  *)
	    if test "$prev" = dlfiles; then
	      dlfiles+=" $arg"
	    else
	      dlprefiles+=" $arg"
	    fi
	    prev=
	    continue
	    ;;
	  esac
	  ;;
	expsyms)
	  export_symbols="$arg"
	  test -f "$arg" \
	    || func_fatal_error "symbol file \`$arg' does not exist"
	  prev=
	  continue
	  ;;
	expsyms_regex)
	  export_symbols_regex="$arg"
	  prev=
	  continue
	  ;;
	framework)
	  case $host in
	    *-*-darwin*)
	      case "$deplibs " in
		*" $qarg.ltframework "*) ;;
		*) deplibs+=" $qarg.ltframework" # this is fixed later
		   ;;
	      esac
	      ;;
	  esac
	  prev=
	  continue
	  ;;
	inst_prefix)
	  inst_prefix_dir="$arg"
	  prev=
	  continue
	  ;;
	objectlist)
	  if test -f "$arg"; then
	    save_arg=$arg
	    moreargs=
	    for fil in `cat "$save_arg"`
	    do
#	      moreargs+=" $fil"
	      arg=$fil
	      # A libtool-controlled object.

	      # Check to see that this really is a libtool object.
	      if func_lalib_unsafe_p "$arg"; then
		pic_object=
		non_pic_object=

		# Read the .lo file
		func_source "$arg"

		if test -z "$pic_object" ||
		   test -z "$non_pic_object" ||
		   test "$pic_object" = none &&
		   test "$non_pic_object" = none; then
		  func_fatal_error "cannot find name of object for \`$arg'"
		fi

		# Extract subdirectory from the argument.
		func_dirname "$arg" "/" ""
		xdir="$func_dirname_result"

		if test "$pic_object" != none; then
		  # Prepend the subdirectory the object is found in.
		  pic_object="$xdir$pic_object"

		  if test "$prev" = dlfiles; then
		    if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
		      dlfiles+=" $pic_object"
		      prev=
		      continue
		    else
		      # If libtool objects are unsupported, then we need to preload.
		      prev=dlprefiles
		    fi
		  fi

		  # CHECK ME:  I think I busted this.  -Ossama
		  if test "$prev" = dlprefiles; then
		    # Preload the old-style object.
		    dlprefiles+=" $pic_object"
		    prev=
		  fi

		  # A PIC object.
		  libobjs+=" $pic_object"
		  arg="$pic_object"
		fi

		# Non-PIC object.
		if test "$non_pic_object" != none; then
		  # Prepend the subdirectory the object is found in.
		  non_pic_object="$xdir$non_pic_object"

		  # A standard non-PIC object
		  non_pic_objects+=" $non_pic_object"
		  if test -z "$pic_object" || test "$pic_object" = none ; then
		    arg="$non_pic_object"
		  fi
		else
		  # If the PIC object exists, use it instead.
		  # $xdir was prepended to $pic_object above.
		  non_pic_object="$pic_object"
		  non_pic_objects+=" $non_pic_object"
		fi
	      else
		# Only an error if not doing a dry-run.
		if $opt_dry_run; then
		  # Extract subdirectory from the argument.
		  func_dirname "$arg" "/" ""
		  xdir="$func_dirname_result"

		  func_lo2o "$arg"
		  pic_object=$xdir$objdir/$func_lo2o_result
		  non_pic_object=$xdir$func_lo2o_result
		  libobjs+=" $pic_object"
		  non_pic_objects+=" $non_pic_object"
	        else
		  func_fatal_error "\`$arg' is not a valid libtool object"
		fi
	      fi
	    done
	  else
	    func_fatal_error "link input file \`$arg' does not exist"
	  fi
	  arg=$save_arg
	  prev=
	  continue
	  ;;
	precious_regex)
	  precious_files_regex="$arg"
	  prev=
	  continue
	  ;;
	release)
	  release="-$arg"
	  prev=
	  continue
	  ;;
	rpath | xrpath)
	  # We need an absolute path.
	  case $arg in
	  [\\/]* | [A-Za-z]:[\\/]*) ;;
	  *)
	    func_fatal_error "only absolute run-paths are allowed"
	    ;;
	  esac
	  if test "$prev" = rpath; then
	    case "$rpath " in
	    *" $arg "*) ;;
	    *) rpath+=" $arg" ;;
	    esac
	  else
	    case "$xrpath " in
	    *" $arg "*) ;;
	    *) xrpath+=" $arg" ;;
	    esac
	  fi
	  prev=
	  continue
	  ;;
	shrext)
	  shrext_cmds="$arg"
	  prev=
	  continue
	  ;;
	weak)
	  weak_libs+=" $arg"
	  prev=
	  continue
	  ;;
	xcclinker)
	  linker_flags+=" $qarg"
	  compiler_flags+=" $qarg"
	  prev=
	  compile_command+=" $qarg"
	  finalize_command+=" $qarg"
	  continue
	  ;;
	xcompiler)
	  compiler_flags+=" $qarg"
	  prev=
	  compile_command+=" $qarg"
	  finalize_command+=" $qarg"
	  continue
	  ;;
	xlinker)
	  linker_flags+=" $qarg"
	  compiler_flags+=" $wl$qarg"
	  prev=
	  compile_command+=" $wl$qarg"
	  finalize_command+=" $wl$qarg"
	  continue
	  ;;
	*)
	  eval "$prev=\"\$arg\""
	  prev=
	  continue
	  ;;
	esac
      fi # test -n "$prev"

      prevarg="$arg"

      case $arg in
      -all-static)
	if test -n "$link_static_flag"; then
	  # See comment for -static flag below, for more details.
	  compile_command+=" $link_static_flag"
	  finalize_command+=" $link_static_flag"
	fi
	continue
	;;

      -allow-undefined)
	# FIXME: remove this flag sometime in the future.
	func_fatal_error "\`-allow-undefined' must not be used because it is the default"
	;;

      -avoid-version)
	avoid_version=yes
	continue
	;;

      -bindir)
	prev=bindir
	continue
	;;

      -dlopen)
	prev=dlfiles
	continue
	;;

      -dlpreopen)
	prev=dlprefiles
	continue
	;;

      -export-dynamic)
	export_dynamic=yes
	continue
	;;

      -export-symbols | -export-symbols-regex)
	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
	  func_fatal_error "more than one -exported-symbols argument is not allowed"
	fi
	if test "X$arg" = "X-export-symbols"; then
	  prev=expsyms
	else
	  prev=expsyms_regex
	fi
	continue
	;;

      -framework)
	prev=framework
	continue
	;;

      -inst-prefix-dir)
	prev=inst_prefix
	continue
	;;

      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
      # so, if we see these flags be careful not to treat them like -L
      -L[A-Z][A-Z]*:*)
	case $with_gcc/$host in
	no/*-*-irix* | /*-*-irix*)
	  compile_command+=" $arg"
	  finalize_command+=" $arg"
	  ;;
	esac
	continue
	;;

      -L*)
	func_stripname "-L" '' "$arg"
	if test -z "$func_stripname_result"; then
	  if test "$#" -gt 0; then
	    func_fatal_error "require no space between \`-L' and \`$1'"
	  else
	    func_fatal_error "need path for \`-L' option"
	  fi
	fi
	func_resolve_sysroot "$func_stripname_result"
	dir=$func_resolve_sysroot_result
	# We need an absolute path.
	case $dir in
	[\\/]* | [A-Za-z]:[\\/]*) ;;
	*)
	  absdir=`cd "$dir" && pwd`
	  test -z "$absdir" && \
	    func_fatal_error "cannot determine absolute directory name of \`$dir'"
	  dir="$absdir"
	  ;;
	esac
	case "$deplibs " in
	*" -L$dir "* | *" $arg "*)
	  # Will only happen for absolute or sysroot arguments
	  ;;
	*)
	  # Preserve sysroot, but never include relative directories
	  case $dir in
	    [\\/]* | [A-Za-z]:[\\/]* | =*) deplibs+=" $arg" ;;
	    *) deplibs+=" -L$dir" ;;
	  esac
	  lib_search_path+=" $dir"
	  ;;
	esac
	case $host in
	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
	  case :$dllsearchpath: in
	  *":$dir:"*) ;;
	  ::) dllsearchpath=$dir;;
	  *) dllsearchpath+=":$dir";;
	  esac
	  case :$dllsearchpath: in
	  *":$testbindir:"*) ;;
	  ::) dllsearchpath=$testbindir;;
	  *) dllsearchpath+=":$testbindir";;
	  esac
	  ;;
	esac
	continue
	;;

      -l*)
	if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
	  case $host in
	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
	    # These systems don't actually have a C or math library (as such)
	    continue
	    ;;
	  *-*-os2*)
	    # These systems don't actually have a C library (as such)
	    test "X$arg" = "X-lc" && continue
	    ;;
	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
	    # Do not include libc due to us having libc/libc_r.
	    test "X$arg" = "X-lc" && continue
	    ;;
	  *-*-rhapsody* | *-*-darwin1.[012])
	    # Rhapsody C and math libraries are in the System framework
	    deplibs+=" System.ltframework"
	    continue
	    ;;
	  *-*-sco3.2v5* | *-*-sco5v6*)
	    # Causes problems with __ctype
	    test "X$arg" = "X-lc" && continue
	    ;;
	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
	    # Compiler inserts libc in the correct place for threads to work
	    test "X$arg" = "X-lc" && continue
	    ;;
	  esac
	elif test "X$arg" = "X-lc_r"; then
	 case $host in
	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
	   # Do not include libc_r directly, use -pthread flag.
	   continue
	   ;;
	 esac
	fi
	deplibs+=" $arg"
	continue
	;;

      -module)
	module=yes
	continue
	;;

      # Tru64 UNIX uses -model [arg] to determine the layout of C++
      # classes, name mangling, and exception handling.
      # Darwin uses the -arch flag to determine output architecture.
      -model|-arch|-isysroot|--sysroot)
	compiler_flags+=" $arg"
	compile_command+=" $arg"
	finalize_command+=" $arg"
	prev=xcompiler
	continue
	;;

      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
	compiler_flags+=" $arg"
	compile_command+=" $arg"
	finalize_command+=" $arg"
	case "$new_inherited_linker_flags " in
	    *" $arg "*) ;;
	    * ) new_inherited_linker_flags+=" $arg" ;;
	esac
	continue
	;;

      -multi_module)
	single_module="${wl}-multi_module"
	continue
	;;

      -no-fast-install)
	fast_install=no
	continue
	;;

      -no-install)
	case $host in
	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
	  # The PATH hackery in wrapper scripts is required on Windows
	  # and Darwin in order for the loader to find any dlls it needs.
	  func_warning "\`-no-install' is ignored for $host"
	  func_warning "assuming \`-no-fast-install' instead"
	  fast_install=no
	  ;;
	*) no_install=yes ;;
	esac
	continue
	;;

      -no-undefined)
	allow_undefined=no
	continue
	;;

      -objectlist)
	prev=objectlist
	continue
	;;

      -o) prev=output ;;

      -precious-files-regex)
	prev=precious_regex
	continue
	;;

      -release)
	prev=release
	continue
	;;

      -rpath)
	prev=rpath
	continue
	;;

      -R)
	prev=xrpath
	continue
	;;

      -R*)
	func_stripname '-R' '' "$arg"
	dir=$func_stripname_result
	# We need an absolute path.
	case $dir in
	[\\/]* | [A-Za-z]:[\\/]*) ;;
	=*)
	  func_stripname '=' '' "$dir"
	  dir=$lt_sysroot$func_stripname_result
	  ;;
	*)
	  func_fatal_error "only absolute run-paths are allowed"
	  ;;
	esac
	case "$xrpath " in
	*" $dir "*) ;;
	*) xrpath+=" $dir" ;;
	esac
	continue
	;;

      -shared)
	# The effects of -shared are defined in a previous loop.
	continue
	;;

      -shrext)
	prev=shrext
	continue
	;;

      -static | -static-libtool-libs)
	# The effects of -static are defined in a previous loop.
	# We used to do the same as -all-static on platforms that
	# didn't have a PIC flag, but the assumption that the effects
	# would be equivalent was wrong.  It would break on at least
	# Digital Unix and AIX.
	continue
	;;

      -thread-safe)
	thread_safe=yes
	continue
	;;

      -version-info)
	prev=vinfo
	continue
	;;

      -version-number)
	prev=vinfo
	vinfo_number=yes
	continue
	;;

      -weak)
        prev=weak
	continue
	;;

      -Wc,*)
	func_stripname '-Wc,' '' "$arg"
	args=$func_stripname_result
	arg=
	save_ifs="$IFS"; IFS=','
	for flag in $args; do
	  IFS="$save_ifs"
          func_quote_for_eval "$flag"
	  arg+=" $func_quote_for_eval_result"
	  compiler_flags+=" $func_quote_for_eval_result"
	done
	IFS="$save_ifs"
	func_stripname ' ' '' "$arg"
	arg=$func_stripname_result
	;;

      -Wl,*)
	func_stripname '-Wl,' '' "$arg"
	args=$func_stripname_result
	arg=
	save_ifs="$IFS"; IFS=','
	for flag in $args; do
	  IFS="$save_ifs"
          func_quote_for_eval "$flag"
	  arg+=" $wl$func_quote_for_eval_result"
	  compiler_flags+=" $wl$func_quote_for_eval_result"
	  linker_flags+=" $func_quote_for_eval_result"
	done
	IFS="$save_ifs"
	func_stripname ' ' '' "$arg"
	arg=$func_stripname_result
	;;

      -Xcompiler)
	prev=xcompiler
	continue
	;;

      -Xlinker)
	prev=xlinker
	continue
	;;

      -XCClinker)
	prev=xcclinker
	continue
	;;

      # -msg_* for osf cc
      -msg_*)
	func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
	;;

      # Flags to be passed through unchanged, with rationale:
      # -64, -mips[0-9]      enable 64-bit mode for the SGI compiler
      # -r[0-9][0-9]*        specify processor for the SGI compiler
      # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
      # +DA*, +DD*           enable 64-bit mode for the HP compiler
      # -q*                  compiler args for the IBM compiler
      # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
      # -F/path              path to uninstalled frameworks, gcc on darwin
      # -p, -pg, --coverage, -fprofile-*  profiling flags for GCC
      # @file                GCC response files
      # -tp=*                Portland pgcc target processor selection
      # --sysroot=*          for sysroot support
      # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
      -O*|-flto*|-fwhopr*|-fuse-linker-plugin)
        func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
        compile_command+=" $arg"
        finalize_command+=" $arg"
        compiler_flags+=" $arg"
        continue
        ;;

      # Some other compiler flag.
      -* | +*)
        func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
	;;

      *.$objext)
	# A standard object.
	objs+=" $arg"
	;;

      *.lo)
	# A libtool-controlled object.

	# Check to see that this really is a libtool object.
	if func_lalib_unsafe_p "$arg"; then
	  pic_object=
	  non_pic_object=

	  # Read the .lo file
	  func_source "$arg"

	  if test -z "$pic_object" ||
	     test -z "$non_pic_object" ||
	     test "$pic_object" = none &&
	     test "$non_pic_object" = none; then
	    func_fatal_error "cannot find name of object for \`$arg'"
	  fi

	  # Extract subdirectory from the argument.
	  func_dirname "$arg" "/" ""
	  xdir="$func_dirname_result"

	  if test "$pic_object" != none; then
	    # Prepend the subdirectory the object is found in.
	    pic_object="$xdir$pic_object"

	    if test "$prev" = dlfiles; then
	      if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
		dlfiles+=" $pic_object"
		prev=
		continue
	      else
		# If libtool objects are unsupported, then we need to preload.
		prev=dlprefiles
	      fi
	    fi

	    # CHECK ME:  I think I busted this.  -Ossama
	    if test "$prev" = dlprefiles; then
	      # Preload the old-style object.
	      dlprefiles+=" $pic_object"
	      prev=
	    fi

	    # A PIC object.
	    libobjs+=" $pic_object"
	    arg="$pic_object"
	  fi

	  # Non-PIC object.
	  if test "$non_pic_object" != none; then
	    # Prepend the subdirectory the object is found in.
	    non_pic_object="$xdir$non_pic_object"

	    # A standard non-PIC object
	    non_pic_objects+=" $non_pic_object"
	    if test -z "$pic_object" || test "$pic_object" = none ; then
	      arg="$non_pic_object"
	    fi
	  else
	    # If the PIC object exists, use it instead.
	    # $xdir was prepended to $pic_object above.
	    non_pic_object="$pic_object"
	    non_pic_objects+=" $non_pic_object"
	  fi
	else
	  # Only an error if not doing a dry-run.
	  if $opt_dry_run; then
	    # Extract subdirectory from the argument.
	    func_dirname "$arg" "/" ""
	    xdir="$func_dirname_result"

	    func_lo2o "$arg"
	    pic_object=$xdir$objdir/$func_lo2o_result
	    non_pic_object=$xdir$func_lo2o_result
	    libobjs+=" $pic_object"
	    non_pic_objects+=" $non_pic_object"
	  else
	    func_fatal_error "\`$arg' is not a valid libtool object"
	  fi
	fi
	;;

      *.$libext)
	# An archive.
	deplibs+=" $arg"
	old_deplibs+=" $arg"
	continue
	;;

      *.la)
	# A libtool-controlled library.

	func_resolve_sysroot "$arg"
	if test "$prev" = dlfiles; then
	  # This library was specified with -dlopen.
	  dlfiles+=" $func_resolve_sysroot_result"
	  prev=
	elif test "$prev" = dlprefiles; then
	  # The library was specified with -dlpreopen.
	  dlprefiles+=" $func_resolve_sysroot_result"
	  prev=
	else
	  deplibs+=" $func_resolve_sysroot_result"
	fi
	continue
	;;

      # Some other compiler argument.
      *)
	# Unknown arguments in both finalize_command and compile_command need
	# to be aesthetically quoted because they are evaled later.
	func_quote_for_eval "$arg"
	arg="$func_quote_for_eval_result"
	;;
      esac # arg

      # Now actually substitute the argument into the commands.
      if test -n "$arg"; then
	compile_command+=" $arg"
	finalize_command+=" $arg"
      fi
    done # argument parsing loop

    test -n "$prev" && \
      func_fatal_help "the \`$prevarg' option requires an argument"

    if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
      eval arg=\"$export_dynamic_flag_spec\"
      compile_command+=" $arg"
      finalize_command+=" $arg"
    fi

    oldlibs=
    # calculate the name of the file, without its directory
    func_basename "$output"
    outputname="$func_basename_result"
    libobjs_save="$libobjs"

    if test -n "$shlibpath_var"; then
      # get the directories listed in $shlibpath_var
      eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\`
    else
      shlib_search_path=
    fi
    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"

    func_dirname "$output" "/" ""
    output_objdir="$func_dirname_result$objdir"
    func_to_tool_file "$output_objdir/"
    tool_output_objdir=$func_to_tool_file_result
    # Create the object directory.
    func_mkdir_p "$output_objdir"

    # Determine the type of output
    case $output in
    "")
      func_fatal_help "you must specify an output file"
      ;;
    *.$libext) linkmode=oldlib ;;
    *.lo | *.$objext) linkmode=obj ;;
    *.la) linkmode=lib ;;
    *) linkmode=prog ;; # Anything else should be a program.
    esac

    specialdeplibs=

    libs=
    # Find all interdependent deplibs by searching for libraries
    # that are linked more than once (e.g. -la -lb -la)
    for deplib in $deplibs; do
      if $opt_preserve_dup_deps ; then
	case "$libs " in
	*" $deplib "*) specialdeplibs+=" $deplib" ;;
	esac
      fi
      libs+=" $deplib"
    done

    if test "$linkmode" = lib; then
      libs="$predeps $libs $compiler_lib_search_path $postdeps"

      # Compute libraries that are listed more than once in $predeps
      # $postdeps and mark them as special (i.e., whose duplicates are
      # not to be eliminated).
      pre_post_deps=
      if $opt_duplicate_compiler_generated_deps; then
	for pre_post_dep in $predeps $postdeps; do
	  case "$pre_post_deps " in
	  *" $pre_post_dep "*) specialdeplibs+=" $pre_post_deps" ;;
	  esac
	  pre_post_deps+=" $pre_post_dep"
	done
      fi
      pre_post_deps=
    fi

    deplibs=
    newdependency_libs=
    newlib_search_path=
    need_relink=no # whether we're linking any uninstalled libtool libraries
    notinst_deplibs= # not-installed libtool libraries
    notinst_path= # paths that contain not-installed libtool libraries

    case $linkmode in
    lib)
	passes="conv dlpreopen link"
	for file in $dlfiles $dlprefiles; do
	  case $file in
	  *.la) ;;
	  *)
	    func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
	    ;;
	  esac
	done
	;;
    prog)
	compile_deplibs=
	finalize_deplibs=
	alldeplibs=no
	newdlfiles=
	newdlprefiles=
	passes="conv scan dlopen dlpreopen link"
	;;
    *)  passes="conv"
	;;
    esac

    for pass in $passes; do
      # The preopen pass in lib mode reverses $deplibs; put it back here
      # so that -L comes before libs that need it for instance...
      if test "$linkmode,$pass" = "lib,link"; then
	## FIXME: Find the place where the list is rebuilt in the wrong
	##        order, and fix it there properly
        tmp_deplibs=
	for deplib in $deplibs; do
	  tmp_deplibs="$deplib $tmp_deplibs"
	done
	deplibs="$tmp_deplibs"
      fi

      if test "$linkmode,$pass" = "lib,link" ||
	 test "$linkmode,$pass" = "prog,scan"; then
	libs="$deplibs"
	deplibs=
      fi
      if test "$linkmode" = prog; then
	case $pass in
	dlopen) libs="$dlfiles" ;;
	dlpreopen) libs="$dlprefiles" ;;
	link)
	  libs="$deplibs %DEPLIBS%"
	  test "X$link_all_deplibs" != Xno && libs="$libs $dependency_libs"
	  ;;
	esac
      fi
      if test "$linkmode,$pass" = "lib,dlpreopen"; then
	# Collect and forward deplibs of preopened libtool libs
	for lib in $dlprefiles; do
	  # Ignore non-libtool-libs
	  dependency_libs=
	  func_resolve_sysroot "$lib"
	  case $lib in
	  *.la)	func_source "$func_resolve_sysroot_result" ;;
	  esac

	  # Collect preopened libtool deplibs, except any this library
	  # has declared as weak libs
	  for deplib in $dependency_libs; do
	    func_basename "$deplib"
            deplib_base=$func_basename_result
	    case " $weak_libs " in
	    *" $deplib_base "*) ;;
	    *) deplibs+=" $deplib" ;;
	    esac
	  done
	done
	libs="$dlprefiles"
      fi
      if test "$pass" = dlopen; then
	# Collect dlpreopened libraries
	save_deplibs="$deplibs"
	deplibs=
      fi

      for deplib in $libs; do
	lib=
	found=no
	case $deplib in
	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
	  if test "$linkmode,$pass" = "prog,link"; then
	    compile_deplibs="$deplib $compile_deplibs"
	    finalize_deplibs="$deplib $finalize_deplibs"
	  else
	    compiler_flags+=" $deplib"
	    if test "$linkmode" = lib ; then
		case "$new_inherited_linker_flags " in
		    *" $deplib "*) ;;
		    * ) new_inherited_linker_flags+=" $deplib" ;;
		esac
	    fi
	  fi
	  continue
	  ;;
	-l*)
	  if test "$linkmode" != lib && test "$linkmode" != prog; then
	    func_warning "\`-l' is ignored for archives/objects"
	    continue
	  fi
	  func_stripname '-l' '' "$deplib"
	  name=$func_stripname_result
	  if test "$linkmode" = lib; then
	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
	  else
	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
	  fi
	  for searchdir in $searchdirs; do
	    for search_ext in .la $std_shrext .so .a; do
	      # Search the libtool library
	      lib="$searchdir/lib${name}${search_ext}"
	      if test -f "$lib"; then
		if test "$search_ext" = ".la"; then
		  found=yes
		else
		  found=no
		fi
		break 2
	      fi
	    done
	  done
	  if test "$found" != yes; then
	    # deplib doesn't seem to be a libtool library
	    if test "$linkmode,$pass" = "prog,link"; then
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    else
	      deplibs="$deplib $deplibs"
	      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
	    fi
	    continue
	  else # deplib is a libtool library
	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
	    # We need to do some special things here, and not later.
	    if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
	      case " $predeps $postdeps " in
	      *" $deplib "*)
		if func_lalib_p "$lib"; then
		  library_names=
		  old_library=
		  func_source "$lib"
		  for l in $old_library $library_names; do
		    ll="$l"
		  done
		  if test "X$ll" = "X$old_library" ; then # only static version available
		    found=no
		    func_dirname "$lib" "" "."
		    ladir="$func_dirname_result"
		    lib=$ladir/$old_library
		    if test "$linkmode,$pass" = "prog,link"; then
		      compile_deplibs="$deplib $compile_deplibs"
		      finalize_deplibs="$deplib $finalize_deplibs"
		    else
		      deplibs="$deplib $deplibs"
		      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
		    fi
		    continue
		  fi
		fi
		;;
	      *) ;;
	      esac
	    fi
	  fi
	  ;; # -l
	*.ltframework)
	  if test "$linkmode,$pass" = "prog,link"; then
	    compile_deplibs="$deplib $compile_deplibs"
	    finalize_deplibs="$deplib $finalize_deplibs"
	  else
	    deplibs="$deplib $deplibs"
	    if test "$linkmode" = lib ; then
		case "$new_inherited_linker_flags " in
		    *" $deplib "*) ;;
		    * ) new_inherited_linker_flags+=" $deplib" ;;
		esac
	    fi
	  fi
	  continue
	  ;;
	-L*)
	  case $linkmode in
	  lib)
	    deplibs="$deplib $deplibs"
	    test "$pass" = conv && continue
	    newdependency_libs="$deplib $newdependency_libs"
	    func_stripname '-L' '' "$deplib"
	    func_resolve_sysroot "$func_stripname_result"
	    newlib_search_path+=" $func_resolve_sysroot_result"
	    ;;
	  prog)
	    if test "$pass" = conv; then
	      deplibs="$deplib $deplibs"
	      continue
	    fi
	    if test "$pass" = scan; then
	      deplibs="$deplib $deplibs"
	    else
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    fi
	    func_stripname '-L' '' "$deplib"
	    func_resolve_sysroot "$func_stripname_result"
	    newlib_search_path+=" $func_resolve_sysroot_result"
	    ;;
	  *)
	    func_warning "\`-L' is ignored for archives/objects"
	    ;;
	  esac # linkmode
	  continue
	  ;; # -L
	-R*)
	  if test "$pass" = link; then
	    func_stripname '-R' '' "$deplib"
	    func_resolve_sysroot "$func_stripname_result"
	    dir=$func_resolve_sysroot_result
	    # Make sure the xrpath contains only unique directories.
	    case "$xrpath " in
	    *" $dir "*) ;;
	    *) xrpath+=" $dir" ;;
	    esac
	  fi
	  deplibs="$deplib $deplibs"
	  continue
	  ;;
	*.la)
	  func_resolve_sysroot "$deplib"
	  lib=$func_resolve_sysroot_result
	  ;;
	*.$libext)
	  if test "$pass" = conv; then
	    deplibs="$deplib $deplibs"
	    continue
	  fi
	  case $linkmode in
	  lib)
	    # Linking convenience modules into shared libraries is allowed,
	    # but linking other static libraries is non-portable.
	    case " $dlpreconveniencelibs " in
	    *" $deplib "*) ;;
	    *)
	      valid_a_lib=no
	      case $deplibs_check_method in
		match_pattern*)
		  set dummy $deplibs_check_method; shift
		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
		  if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
		    | $EGREP "$match_pattern_regex" > /dev/null; then
		    valid_a_lib=yes
		  fi
		;;
		pass_all)
		  valid_a_lib=yes
		;;
	      esac
	      if test "$valid_a_lib" != yes; then
		echo
		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
		echo "*** I have the capability to make that library automatically link in when"
		echo "*** you link to this library.  But I can only do this if you have a"
		echo "*** shared version of the library, which you do not appear to have"
		echo "*** because the file extensions .$libext of this argument makes me believe"
		echo "*** that it is just a static archive that I should not use here."
	      else
		echo
		$ECHO "*** Warning: Linking the shared library $output against the"
		$ECHO "*** static library $deplib is not portable!"
		deplibs="$deplib $deplibs"
	      fi
	      ;;
	    esac
	    continue
	    ;;
	  prog)
	    if test "$pass" != link; then
	      deplibs="$deplib $deplibs"
	    else
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    fi
	    continue
	    ;;
	  esac # linkmode
	  ;; # *.$libext
	*.lo | *.$objext)
	  if test "$pass" = conv; then
	    deplibs="$deplib $deplibs"
	  elif test "$linkmode" = prog; then
	    if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
	      # If there is no dlopen support or we're linking statically,
	      # we need to preload.
	      newdlprefiles+=" $deplib"
	      compile_deplibs="$deplib $compile_deplibs"
	      finalize_deplibs="$deplib $finalize_deplibs"
	    else
	      newdlfiles+=" $deplib"
	    fi
	  fi
	  continue
	  ;;
	%DEPLIBS%)
	  alldeplibs=yes
	  continue
	  ;;
	esac # case $deplib

	if test "$found" = yes || test -f "$lib"; then :
	else
	  func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
	fi

	# Check to see that this really is a libtool archive.
	func_lalib_unsafe_p "$lib" \
	  || func_fatal_error "\`$lib' is not a valid libtool archive"

	func_dirname "$lib" "" "."
	ladir="$func_dirname_result"

	dlname=
	dlopen=
	dlpreopen=
	libdir=
	library_names=
	old_library=
	inherited_linker_flags=
	# If the library was installed with an old release of libtool,
	# it will not redefine variables installed, or shouldnotlink
	installed=yes
	shouldnotlink=no
	avoidtemprpath=


	# Read the .la file
	func_source "$lib"

	# Convert "-framework foo" to "foo.ltframework"
	if test -n "$inherited_linker_flags"; then
	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
	    case " $new_inherited_linker_flags " in
	      *" $tmp_inherited_linker_flag "*) ;;
	      *) new_inherited_linker_flags+=" $tmp_inherited_linker_flag";;
	    esac
	  done
	fi
	dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	if test "$linkmode,$pass" = "lib,link" ||
	   test "$linkmode,$pass" = "prog,scan" ||
	   { test "$linkmode" != prog && test "$linkmode" != lib; }; then
	  test -n "$dlopen" && dlfiles+=" $dlopen"
	  test -n "$dlpreopen" && dlprefiles+=" $dlpreopen"
	fi

	if test "$pass" = conv; then
	  # Only check for convenience libraries
	  deplibs="$lib $deplibs"
	  if test -z "$libdir"; then
	    if test -z "$old_library"; then
	      func_fatal_error "cannot find name of link library for \`$lib'"
	    fi
	    # It is a libtool convenience library, so add in its objects.
	    convenience+=" $ladir/$objdir/$old_library"
	    old_convenience+=" $ladir/$objdir/$old_library"
	    tmp_libs=
	    for deplib in $dependency_libs; do
	      deplibs="$deplib $deplibs"
	      if $opt_preserve_dup_deps ; then
		case "$tmp_libs " in
		*" $deplib "*) specialdeplibs+=" $deplib" ;;
		esac
	      fi
	      tmp_libs+=" $deplib"
	    done
	  elif test "$linkmode" != prog && test "$linkmode" != lib; then
	    func_fatal_error "\`$lib' is not a convenience library"
	  fi
	  continue
	fi # $pass = conv


	# Get the name of the library we link against.
	linklib=
	if test -n "$old_library" &&
	   { test "$prefer_static_libs" = yes ||
	     test "$prefer_static_libs,$installed" = "built,no"; }; then
	  linklib=$old_library
	else
	  for l in $old_library $library_names; do
	    linklib="$l"
	  done
	fi
	if test -z "$linklib"; then
	  func_fatal_error "cannot find name of link library for \`$lib'"
	fi

	# This library was specified with -dlopen.
	if test "$pass" = dlopen; then
	  if test -z "$libdir"; then
	    func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
	  fi
	  if test -z "$dlname" ||
	     test "$dlopen_support" != yes ||
	     test "$build_libtool_libs" = no; then
	    # If there is no dlname, no dlopen support or we're linking
	    # statically, we need to preload.  We also need to preload any
	    # dependent libraries so libltdl's deplib preloader doesn't
	    # bomb out in the load deplibs phase.
	    dlprefiles+=" $lib $dependency_libs"
	  else
	    newdlfiles+=" $lib"
	  fi
	  continue
	fi # $pass = dlopen

	# We need an absolute path.
	case $ladir in
	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
	*)
	  abs_ladir=`cd "$ladir" && pwd`
	  if test -z "$abs_ladir"; then
	    func_warning "cannot determine absolute directory name of \`$ladir'"
	    func_warning "passing it literally to the linker, although it might fail"
	    abs_ladir="$ladir"
	  fi
	  ;;
	esac
	func_basename "$lib"
	laname="$func_basename_result"

	# Find the relevant object directory and library name.
	if test "X$installed" = Xyes; then
	  if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
	    func_warning "library \`$lib' was moved."
	    dir="$ladir"
	    absdir="$abs_ladir"
	    libdir="$abs_ladir"
	  else
	    dir="$lt_sysroot$libdir"
	    absdir="$lt_sysroot$libdir"
	  fi
	  test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
	else
	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
	    dir="$ladir"
	    absdir="$abs_ladir"
	    # Remove this search path later
	    notinst_path+=" $abs_ladir"
	  else
	    dir="$ladir/$objdir"
	    absdir="$abs_ladir/$objdir"
	    # Remove this search path later
	    notinst_path+=" $abs_ladir"
	  fi
	fi # $installed = yes
	func_stripname 'lib' '.la' "$laname"
	name=$func_stripname_result

	# This library was specified with -dlpreopen.
	if test "$pass" = dlpreopen; then
	  if test -z "$libdir" && test "$linkmode" = prog; then
	    func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
	  fi
	  case "$host" in
	    # special handling for platforms with PE-DLLs.
	    *cygwin* | *mingw* | *cegcc* )
	      # Linker will automatically link against shared library if both
	      # static and shared are present.  Therefore, ensure we extract
	      # symbols from the import library if a shared library is present
	      # (otherwise, the dlopen module name will be incorrect).  We do
	      # this by putting the import library name into $newdlprefiles.
	      # We recover the dlopen module name by 'saving' the la file
	      # name in a special purpose variable, and (later) extracting the
	      # dlname from the la file.
	      if test -n "$dlname"; then
	        func_tr_sh "$dir/$linklib"
	        eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
	        newdlprefiles+=" $dir/$linklib"
	      else
	        newdlprefiles+=" $dir/$old_library"
	        # Keep a list of preopened convenience libraries to check
	        # that they are being used correctly in the link pass.
	        test -z "$libdir" && \
	          dlpreconveniencelibs+=" $dir/$old_library"
	      fi
	    ;;
	    * )
	      # Prefer using a static library (so that no silly _DYNAMIC symbols
	      # are required to link).
	      if test -n "$old_library"; then
	        newdlprefiles+=" $dir/$old_library"
	        # Keep a list of preopened convenience libraries to check
	        # that they are being used correctly in the link pass.
	        test -z "$libdir" && \
	          dlpreconveniencelibs+=" $dir/$old_library"
	      # Otherwise, use the dlname, so that lt_dlopen finds it.
	      elif test -n "$dlname"; then
	        newdlprefiles+=" $dir/$dlname"
	      else
	        newdlprefiles+=" $dir/$linklib"
	      fi
	    ;;
	  esac
	fi # $pass = dlpreopen

	if test -z "$libdir"; then
	  # Link the convenience library
	  if test "$linkmode" = lib; then
	    deplibs="$dir/$old_library $deplibs"
	  elif test "$linkmode,$pass" = "prog,link"; then
	    compile_deplibs="$dir/$old_library $compile_deplibs"
	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
	  else
	    deplibs="$lib $deplibs" # used for prog,scan pass
	  fi
	  continue
	fi


	if test "$linkmode" = prog && test "$pass" != link; then
	  newlib_search_path+=" $ladir"
	  deplibs="$lib $deplibs"

	  linkalldeplibs=no
	  if test "$link_all_deplibs" != no || test -z "$library_names" ||
	     test "$build_libtool_libs" = no; then
	    linkalldeplibs=yes
	  fi

	  tmp_libs=
	  for deplib in $dependency_libs; do
	    case $deplib in
	    -L*) func_stripname '-L' '' "$deplib"
	         func_resolve_sysroot "$func_stripname_result"
	         newlib_search_path+=" $func_resolve_sysroot_result"
		 ;;
	    esac
	    # Need to link against all dependency_libs?
	    if test "$linkalldeplibs" = yes; then
	      deplibs="$deplib $deplibs"
	    else
	      # Need to hardcode shared library paths
	      # or/and link against static libraries
	      newdependency_libs="$deplib $newdependency_libs"
	    fi
	    if $opt_preserve_dup_deps ; then
	      case "$tmp_libs " in
	      *" $deplib "*) specialdeplibs+=" $deplib" ;;
	      esac
	    fi
	    tmp_libs+=" $deplib"
	  done # for deplib
	  continue
	fi # $linkmode = prog...

	if test "$linkmode,$pass" = "prog,link"; then
	  if test -n "$library_names" &&
	     { { test "$prefer_static_libs" = no ||
	         test "$prefer_static_libs,$installed" = "built,yes"; } ||
	       test -z "$old_library"; }; then
	    # We need to hardcode the library path
	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
	      # Make sure the rpath contains only unique directories.
	      case "$temp_rpath:" in
	      *"$absdir:"*) ;;
	      *) temp_rpath+="$absdir:" ;;
	      esac
	    fi

	    # Hardcode the library path.
	    # Skip directories that are in the system default run-time
	    # search path.
	    case " $sys_lib_dlsearch_path " in
	    *" $absdir "*) ;;
	    *)
	      case "$compile_rpath " in
	      *" $absdir "*) ;;
	      *) compile_rpath+=" $absdir" ;;
	      esac
	      ;;
	    esac
	    case " $sys_lib_dlsearch_path " in
	    *" $libdir "*) ;;
	    *)
	      case "$finalize_rpath " in
	      *" $libdir "*) ;;
	      *) finalize_rpath+=" $libdir" ;;
	      esac
	      ;;
	    esac
	  fi # $linkmode,$pass = prog,link...

	  if test "$alldeplibs" = yes &&
	     { test "$deplibs_check_method" = pass_all ||
	       { test "$build_libtool_libs" = yes &&
		 test -n "$library_names"; }; }; then
	    # We only need to search for static libraries
	    continue
	  fi
	fi

	link_static=no # Whether the deplib will be linked statically
	use_static_libs=$prefer_static_libs
	if test "$use_static_libs" = built && test "$installed" = yes; then
	  use_static_libs=no
	fi
	if test -n "$library_names" &&
	   { test "$use_static_libs" = no || test -z "$old_library"; }; then
	  case $host in
	  *cygwin* | *mingw* | *cegcc*)
	      # No point in relinking DLLs because paths are not encoded
	      notinst_deplibs+=" $lib"
	      need_relink=no
	    ;;
	  *)
	    if test "$installed" = no; then
	      notinst_deplibs+=" $lib"
	      need_relink=yes
	    fi
	    ;;
	  esac
	  # This is a shared library

	  # Warn about portability, can't link against -module's on some
	  # systems (darwin).  Don't bleat about dlopened modules though!
	  dlopenmodule=""
	  for dlpremoduletest in $dlprefiles; do
	    if test "X$dlpremoduletest" = "X$lib"; then
	      dlopenmodule="$dlpremoduletest"
	      break
	    fi
	  done
	  if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
	    echo
	    if test "$linkmode" = prog; then
	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
	    else
	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
	    fi
	    $ECHO "*** $linklib is not portable!"
	  fi
	  if test "$linkmode" = lib &&
	     test "$hardcode_into_libs" = yes; then
	    # Hardcode the library path.
	    # Skip directories that are in the system default run-time
	    # search path.
	    case " $sys_lib_dlsearch_path " in
	    *" $absdir "*) ;;
	    *)
	      case "$compile_rpath " in
	      *" $absdir "*) ;;
	      *) compile_rpath+=" $absdir" ;;
	      esac
	      ;;
	    esac
	    case " $sys_lib_dlsearch_path " in
	    *" $libdir "*) ;;
	    *)
	      case "$finalize_rpath " in
	      *" $libdir "*) ;;
	      *) finalize_rpath+=" $libdir" ;;
	      esac
	      ;;
	    esac
	  fi

	  if test -n "$old_archive_from_expsyms_cmds"; then
	    # figure out the soname
	    set dummy $library_names
	    shift
	    realname="$1"
	    shift
	    libname=`eval "\\$ECHO \"$libname_spec\""`
	    # use dlname if we got it. it's perfectly good, no?
	    if test -n "$dlname"; then
	      soname="$dlname"
	    elif test -n "$soname_spec"; then
	      # bleh windows
	      case $host in
	      *cygwin* | mingw* | *cegcc*)
	        func_arith $current - $age
		major=$func_arith_result
		versuffix="-$major"
		;;
	      esac
	      eval soname=\"$soname_spec\"
	    else
	      soname="$realname"
	    fi

	    # Make a new name for the extract_expsyms_cmds to use
	    soroot="$soname"
	    func_basename "$soroot"
	    soname="$func_basename_result"
	    func_stripname 'lib' '.dll' "$soname"
	    newlib=libimp-$func_stripname_result.a

	    # If the library has no export list, then create one now
	    if test -f "$output_objdir/$soname-def"; then :
	    else
	      func_verbose "extracting exported symbol list from \`$soname'"
	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
	    fi

	    # Create $newlib
	    if test -f "$output_objdir/$newlib"; then :; else
	      func_verbose "generating import library for \`$soname'"
	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
	    fi
	    # make sure the library variables are pointing to the new library
	    dir=$output_objdir
	    linklib=$newlib
	  fi # test -n "$old_archive_from_expsyms_cmds"

	  if test "$linkmode" = prog || test "$opt_mode" != relink; then
	    add_shlibpath=
	    add_dir=
	    add=
	    lib_linked=yes
	    case $hardcode_action in
	    immediate | unsupported)
	      if test "$hardcode_direct" = no; then
		add="$dir/$linklib"
		case $host in
		  *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
		  *-*-sysv4*uw2*) add_dir="-L$dir" ;;
		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
		    *-*-unixware7*) add_dir="-L$dir" ;;
		  *-*-darwin* )
		    # if the lib is a (non-dlopened) module then we can not
		    # link against it, someone is ignoring the earlier warnings
		    if /usr/bin/file -L $add 2> /dev/null |
			 $GREP ": [^:]* bundle" >/dev/null ; then
		      if test "X$dlopenmodule" != "X$lib"; then
			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
			if test -z "$old_library" ; then
			  echo
			  echo "*** And there doesn't seem to be a static archive available"
			  echo "*** The link will probably fail, sorry"
			else
			  add="$dir/$old_library"
			fi
		      elif test -n "$old_library"; then
			add="$dir/$old_library"
		      fi
		    fi
		esac
	      elif test "$hardcode_minus_L" = no; then
		case $host in
		*-*-sunos*) add_shlibpath="$dir" ;;
		esac
		add_dir="-L$dir"
		add="-l$name"
	      elif test "$hardcode_shlibpath_var" = no; then
		add_shlibpath="$dir"
		add="-l$name"
	      else
		lib_linked=no
	      fi
	      ;;
	    relink)
	      if test "$hardcode_direct" = yes &&
	         test "$hardcode_direct_absolute" = no; then
		add="$dir/$linklib"
	      elif test "$hardcode_minus_L" = yes; then
		add_dir="-L$absdir"
		# Try looking first in the location we're being installed to.
		if test -n "$inst_prefix_dir"; then
		  case $libdir in
		    [\\/]*)
		      add_dir+=" -L$inst_prefix_dir$libdir"
		      ;;
		  esac
		fi
		add="-l$name"
	      elif test "$hardcode_shlibpath_var" = yes; then
		add_shlibpath="$dir"
		add="-l$name"
	      else
		lib_linked=no
	      fi
	      ;;
	    *) lib_linked=no ;;
	    esac

	    if test "$lib_linked" != yes; then
	      func_fatal_configuration "unsupported hardcode properties"
	    fi

	    if test -n "$add_shlibpath"; then
	      case :$compile_shlibpath: in
	      *":$add_shlibpath:"*) ;;
	      *) compile_shlibpath+="$add_shlibpath:" ;;
	      esac
	    fi
	    if test "$linkmode" = prog; then
	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
	    else
	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
	      test -n "$add" && deplibs="$add $deplibs"
	      if test "$hardcode_direct" != yes &&
		 test "$hardcode_minus_L" != yes &&
		 test "$hardcode_shlibpath_var" = yes; then
		case :$finalize_shlibpath: in
		*":$libdir:"*) ;;
		*) finalize_shlibpath+="$libdir:" ;;
		esac
	      fi
	    fi
	  fi

	  if test "$linkmode" = prog || test "$opt_mode" = relink; then
	    add_shlibpath=
	    add_dir=
	    add=
	    # Finalize command for both is simple: just hardcode it.
	    if test "$hardcode_direct" = yes &&
	       test "$hardcode_direct_absolute" = no; then
	      add="$libdir/$linklib"
	    elif test "$hardcode_minus_L" = yes; then
	      add_dir="-L$libdir"
	      add="-l$name"
	    elif test "$hardcode_shlibpath_var" = yes; then
	      case :$finalize_shlibpath: in
	      *":$libdir:"*) ;;
	      *) finalize_shlibpath+="$libdir:" ;;
	      esac
	      add="-l$name"
	    elif test "$hardcode_automatic" = yes; then
	      if test -n "$inst_prefix_dir" &&
		 test -f "$inst_prefix_dir$libdir/$linklib" ; then
		add="$inst_prefix_dir$libdir/$linklib"
	      else
		add="$libdir/$linklib"
	      fi
	    else
	      # We cannot seem to hardcode it, guess we'll fake it.
	      add_dir="-L$libdir"
	      # Try looking first in the location we're being installed to.
	      if test -n "$inst_prefix_dir"; then
		case $libdir in
		  [\\/]*)
		    add_dir+=" -L$inst_prefix_dir$libdir"
		    ;;
		esac
	      fi
	      add="-l$name"
	    fi

	    if test "$linkmode" = prog; then
	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
	    else
	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
	      test -n "$add" && deplibs="$add $deplibs"
	    fi
	  fi
	elif test "$linkmode" = prog; then
	  # Here we assume that one of hardcode_direct or hardcode_minus_L
	  # is not unsupported.  This is valid on all known static and
	  # shared platforms.
	  if test "$hardcode_direct" != unsupported; then
	    test -n "$old_library" && linklib="$old_library"
	    compile_deplibs="$dir/$linklib $compile_deplibs"
	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
	  else
	    compile_deplibs="-l$name -L$dir $compile_deplibs"
	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
	  fi
	elif test "$build_libtool_libs" = yes; then
	  # Not a shared library
	  if test "$deplibs_check_method" != pass_all; then
	    # We're trying link a shared library against a static one
	    # but the system doesn't support it.

	    # Just print a warning and add the library to dependency_libs so
	    # that the program can be linked against the static library.
	    echo
	    $ECHO "*** Warning: This system can not link to static lib archive $lib."
	    echo "*** I have the capability to make that library automatically link in when"
	    echo "*** you link to this library.  But I can only do this if you have a"
	    echo "*** shared version of the library, which you do not appear to have."
	    if test "$module" = yes; then
	      echo "*** But as you try to build a module library, libtool will still create "
	      echo "*** a static module, that should work as long as the dlopening application"
	      echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
	      if test -z "$global_symbol_pipe"; then
		echo
		echo "*** However, this would only work if libtool was able to extract symbol"
		echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
		echo "*** not find such a program.  So, this module is probably useless."
		echo "*** \`nm' from GNU binutils and a full rebuild may help."
	      fi
	      if test "$build_old_libs" = no; then
		build_libtool_libs=module
		build_old_libs=yes
	      else
		build_libtool_libs=no
	      fi
	    fi
	  else
	    deplibs="$dir/$old_library $deplibs"
	    link_static=yes
	  fi
	fi # link shared/static library?

	if test "$linkmode" = lib; then
	  if test -n "$dependency_libs" &&
	     { test "$hardcode_into_libs" != yes ||
	       test "$build_old_libs" = yes ||
	       test "$link_static" = yes; }; then
	    # Extract -R from dependency_libs
	    temp_deplibs=
	    for libdir in $dependency_libs; do
	      case $libdir in
	      -R*) func_stripname '-R' '' "$libdir"
	           temp_xrpath=$func_stripname_result
		   case " $xrpath " in
		   *" $temp_xrpath "*) ;;
		   *) xrpath+=" $temp_xrpath";;
		   esac;;
	      *) temp_deplibs+=" $libdir";;
	      esac
	    done
	    dependency_libs="$temp_deplibs"
	  fi

	  newlib_search_path+=" $absdir"
	  # Link against this library
	  test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
	  # ... and its dependency_libs
	  tmp_libs=
	  for deplib in $dependency_libs; do
	    newdependency_libs="$deplib $newdependency_libs"
	    case $deplib in
              -L*) func_stripname '-L' '' "$deplib"
                   func_resolve_sysroot "$func_stripname_result";;
              *) func_resolve_sysroot "$deplib" ;;
            esac
	    if $opt_preserve_dup_deps ; then
	      case "$tmp_libs " in
	      *" $func_resolve_sysroot_result "*)
                specialdeplibs+=" $func_resolve_sysroot_result" ;;
	      esac
	    fi
	    tmp_libs+=" $func_resolve_sysroot_result"
	  done

	  if test "$link_all_deplibs" != no; then
	    # Add the search paths of all dependency libraries
	    for deplib in $dependency_libs; do
	      path=
	      case $deplib in
	      -L*) path="$deplib" ;;
	      *.la)
	        func_resolve_sysroot "$deplib"
	        deplib=$func_resolve_sysroot_result
	        func_dirname "$deplib" "" "."
		dir=$func_dirname_result
		# We need an absolute path.
		case $dir in
		[\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
		*)
		  absdir=`cd "$dir" && pwd`
		  if test -z "$absdir"; then
		    func_warning "cannot determine absolute directory name of \`$dir'"
		    absdir="$dir"
		  fi
		  ;;
		esac
		if $GREP "^installed=no" $deplib > /dev/null; then
		case $host in
		*-*-darwin*)
		  depdepl=
		  eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
		  if test -n "$deplibrary_names" ; then
		    for tmp in $deplibrary_names ; do
		      depdepl=$tmp
		    done
		    if test -f "$absdir/$objdir/$depdepl" ; then
		      depdepl="$absdir/$objdir/$depdepl"
		      darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
                      if test -z "$darwin_install_name"; then
                          darwin_install_name=`${OTOOL64} -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
                      fi
		      compiler_flags+=" ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
		      linker_flags+=" -dylib_file ${darwin_install_name}:${depdepl}"
		      path=
		    fi
		  fi
		  ;;
		*)
		  path="-L$absdir/$objdir"
		  ;;
		esac
		else
		  eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
		  test -z "$libdir" && \
		    func_fatal_error "\`$deplib' is not a valid libtool archive"
		  test "$absdir" != "$libdir" && \
		    func_warning "\`$deplib' seems to be moved"

		  path="-L$absdir"
		fi
		;;
	      esac
	      case " $deplibs " in
	      *" $path "*) ;;
	      *) deplibs="$path $deplibs" ;;
	      esac
	    done
	  fi # link_all_deplibs != no
	fi # linkmode = lib
      done # for deplib in $libs
      if test "$pass" = link; then
	if test "$linkmode" = "prog"; then
	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
	else
	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	fi
      fi
      dependency_libs="$newdependency_libs"
      if test "$pass" = dlpreopen; then
	# Link the dlpreopened libraries before other libraries
	for deplib in $save_deplibs; do
	  deplibs="$deplib $deplibs"
	done
      fi
      if test "$pass" != dlopen; then
	if test "$pass" != conv; then
	  # Make sure lib_search_path contains only unique directories.
	  lib_search_path=
	  for dir in $newlib_search_path; do
	    case "$lib_search_path " in
	    *" $dir "*) ;;
	    *) lib_search_path+=" $dir" ;;
	    esac
	  done
	  newlib_search_path=
	fi

	if test "$linkmode,$pass" != "prog,link"; then
	  vars="deplibs"
	else
	  vars="compile_deplibs finalize_deplibs"
	fi
	for var in $vars dependency_libs; do
	  # Add libraries to $var in reverse order
	  eval tmp_libs=\"\$$var\"
	  new_libs=
	  for deplib in $tmp_libs; do
	    # FIXME: Pedantically, this is the right thing to do, so
	    #        that some nasty dependency loop isn't accidentally
	    #        broken:
	    #new_libs="$deplib $new_libs"
	    # Pragmatically, this seems to cause very few problems in
	    # practice:
	    case $deplib in
	    -L*) new_libs="$deplib $new_libs" ;;
	    -R*) ;;
	    *)
	      # And here is the reason: when a library appears more
	      # than once as an explicit dependence of a library, or
	      # is implicitly linked in more than once by the
	      # compiler, it is considered special, and multiple
	      # occurrences thereof are not removed.  Compare this
	      # with having the same library being listed as a
	      # dependency of multiple other libraries: in this case,
	      # we know (pedantically, we assume) the library does not
	      # need to be listed more than once, so we keep only the
	      # last copy.  This is not always right, but it is rare
	      # enough that we require users that really mean to play
	      # such unportable linking tricks to link the library
	      # using -Wl,-lname, so that libtool does not consider it
	      # for duplicate removal.
	      case " $specialdeplibs " in
	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
	      *)
		case " $new_libs " in
		*" $deplib "*) ;;
		*) new_libs="$deplib $new_libs" ;;
		esac
		;;
	      esac
	      ;;
	    esac
	  done
	  tmp_libs=
	  for deplib in $new_libs; do
	    case $deplib in
	    -L*)
	      case " $tmp_libs " in
	      *" $deplib "*) ;;
	      *) tmp_libs+=" $deplib" ;;
	      esac
	      ;;
	    *) tmp_libs+=" $deplib" ;;
	    esac
	  done
	  eval $var=\"$tmp_libs\"
	done # for var
      fi
      # Last step: remove runtime libs from dependency_libs
      # (they stay in deplibs)
      tmp_libs=
      for i in $dependency_libs ; do
	case " $predeps $postdeps $compiler_lib_search_path " in
	*" $i "*)
	  i=""
	  ;;
	esac
	if test -n "$i" ; then
	  tmp_libs+=" $i"
	fi
      done
      dependency_libs=$tmp_libs
    done # for pass
    if test "$linkmode" = prog; then
      dlfiles="$newdlfiles"
    fi
    if test "$linkmode" = prog || test "$linkmode" = lib; then
      dlprefiles="$newdlprefiles"
    fi

    case $linkmode in
    oldlib)
      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
	func_warning "\`-dlopen' is ignored for archives"
      fi

      case " $deplibs" in
      *\ -l* | *\ -L*)
	func_warning "\`-l' and \`-L' are ignored for archives" ;;
      esac

      test -n "$rpath" && \
	func_warning "\`-rpath' is ignored for archives"

      test -n "$xrpath" && \
	func_warning "\`-R' is ignored for archives"

      test -n "$vinfo" && \
	func_warning "\`-version-info/-version-number' is ignored for archives"

      test -n "$release" && \
	func_warning "\`-release' is ignored for archives"

      test -n "$export_symbols$export_symbols_regex" && \
	func_warning "\`-export-symbols' is ignored for archives"

      # Now set the variables for building old libraries.
      build_libtool_libs=no
      oldlibs="$output"
      objs+="$old_deplibs"
      ;;

    lib)
      # Make sure we only generate libraries of the form `libNAME.la'.
      case $outputname in
      lib*)
	func_stripname 'lib' '.la' "$outputname"
	name=$func_stripname_result
	eval shared_ext=\"$shrext_cmds\"
	eval libname=\"$libname_spec\"
	;;
      *)
	test "$module" = no && \
	  func_fatal_help "libtool library \`$output' must begin with \`lib'"

	if test "$need_lib_prefix" != no; then
	  # Add the "lib" prefix for modules if required
	  func_stripname '' '.la' "$outputname"
	  name=$func_stripname_result
	  eval shared_ext=\"$shrext_cmds\"
	  eval libname=\"$libname_spec\"
	else
	  func_stripname '' '.la' "$outputname"
	  libname=$func_stripname_result
	fi
	;;
      esac

      if test -n "$objs"; then
	if test "$deplibs_check_method" != pass_all; then
	  func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
	else
	  echo
	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
	  $ECHO "*** objects $objs is not portable!"
	  libobjs+=" $objs"
	fi
      fi

      test "$dlself" != no && \
	func_warning "\`-dlopen self' is ignored for libtool libraries"

      set dummy $rpath
      shift
      test "$#" -gt 1 && \
	func_warning "ignoring multiple \`-rpath's for a libtool library"

      install_libdir="$1"

      oldlibs=
      if test -z "$rpath"; then
	if test "$build_libtool_libs" = yes; then
	  # Building a libtool convenience library.
	  # Some compilers have problems with a `.al' extension so
	  # convenience libraries should have the same extension an
	  # archive normally would.
	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
	  build_libtool_libs=convenience
	  build_old_libs=yes
	fi

	test -n "$vinfo" && \
	  func_warning "\`-version-info/-version-number' is ignored for convenience libraries"

	test -n "$release" && \
	  func_warning "\`-release' is ignored for convenience libraries"
      else

	# Parse the version information argument.
	save_ifs="$IFS"; IFS=':'
	set dummy $vinfo 0 0 0
	shift
	IFS="$save_ifs"

	test -n "$7" && \
	  func_fatal_help "too many parameters to \`-version-info'"

	# convert absolute version numbers to libtool ages
	# this retains compatibility with .la files and attempts
	# to make the code below a bit more comprehensible

	case $vinfo_number in
	yes)
	  number_major="$1"
	  number_minor="$2"
	  number_revision="$3"
	  #
	  # There are really only two kinds -- those that
	  # use the current revision as the major version
	  # and those that subtract age and use age as
	  # a minor version.  But, then there is irix
	  # which has an extra 1 added just for fun
	  #
	  case $version_type in
	  # correct linux to gnu/linux during the next big refactor
	  darwin|linux|osf|windows|none)
	    func_arith $number_major + $number_minor
	    current=$func_arith_result
	    age="$number_minor"
	    revision="$number_revision"
	    ;;
	  freebsd-aout|freebsd-elf|qnx|sunos)
	    current="$number_major"
	    revision="$number_minor"
	    age="0"
	    ;;
	  irix|nonstopux)
	    func_arith $number_major + $number_minor
	    current=$func_arith_result
	    age="$number_minor"
	    revision="$number_minor"
	    lt_irix_increment=no
	    ;;
	  *)
	    func_fatal_configuration "$modename: unknown library version type \`$version_type'"
	    ;;
	  esac
	  ;;
	no)
	  current="$1"
	  revision="$2"
	  age="$3"
	  ;;
	esac

	# Check that each of the things are valid numbers.
	case $current in
	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
	*)
	  func_error "CURRENT \`$current' must be a nonnegative integer"
	  func_fatal_error "\`$vinfo' is not valid version information"
	  ;;
	esac

	case $revision in
	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
	*)
	  func_error "REVISION \`$revision' must be a nonnegative integer"
	  func_fatal_error "\`$vinfo' is not valid version information"
	  ;;
	esac

	case $age in
	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
	*)
	  func_error "AGE \`$age' must be a nonnegative integer"
	  func_fatal_error "\`$vinfo' is not valid version information"
	  ;;
	esac

	if test "$age" -gt "$current"; then
	  func_error "AGE \`$age' is greater than the current interface number \`$current'"
	  func_fatal_error "\`$vinfo' is not valid version information"
	fi

	# Calculate the version variables.
	major=
	versuffix=
	verstring=
	case $version_type in
	none) ;;

	darwin)
	  # Like Linux, but with the current version available in
	  # verstring for coding it into the library header
	  func_arith $current - $age
	  major=.$func_arith_result
	  versuffix="$major.$age.$revision"
	  # Darwin ld doesn't like 0 for these options...
	  func_arith $current + 1
	  minor_current=$func_arith_result
	  xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
	  ;;

	freebsd-aout)
	  major=".$current"
	  versuffix=".$current.$revision";
	  ;;

	freebsd-elf)
	  major=".$current"
	  versuffix=".$current"
	  ;;

	irix | nonstopux)
	  if test "X$lt_irix_increment" = "Xno"; then
	    func_arith $current - $age
	  else
	    func_arith $current - $age + 1
	  fi
	  major=$func_arith_result

	  case $version_type in
	    nonstopux) verstring_prefix=nonstopux ;;
	    *)         verstring_prefix=sgi ;;
	  esac
	  verstring="$verstring_prefix$major.$revision"

	  # Add in all the interfaces that we are compatible with.
	  loop=$revision
	  while test "$loop" -ne 0; do
	    func_arith $revision - $loop
	    iface=$func_arith_result
	    func_arith $loop - 1
	    loop=$func_arith_result
	    verstring="$verstring_prefix$major.$iface:$verstring"
	  done

	  # Before this point, $major must not contain `.'.
	  major=.$major
	  versuffix="$major.$revision"
	  ;;

	linux) # correct to gnu/linux during the next big refactor
	  func_arith $current - $age
	  major=.$func_arith_result
	  versuffix="$major.$age.$revision"
	  ;;

	osf)
	  func_arith $current - $age
	  major=.$func_arith_result
	  versuffix=".$current.$age.$revision"
	  verstring="$current.$age.$revision"

	  # Add in all the interfaces that we are compatible with.
	  loop=$age
	  while test "$loop" -ne 0; do
	    func_arith $current - $loop
	    iface=$func_arith_result
	    func_arith $loop - 1
	    loop=$func_arith_result
	    verstring="$verstring:${iface}.0"
	  done

	  # Make executables depend on our current version.
	  verstring+=":${current}.0"
	  ;;

	qnx)
	  major=".$current"
	  versuffix=".$current"
	  ;;

	sunos)
	  major=".$current"
	  versuffix=".$current.$revision"
	  ;;

	windows)
	  # Use '-' rather than '.', since we only want one
	  # extension on DOS 8.3 filesystems.
	  func_arith $current - $age
	  major=$func_arith_result
	  versuffix="-$major"
	  ;;

	*)
	  func_fatal_configuration "unknown library version type \`$version_type'"
	  ;;
	esac

	# Clear the version info if we defaulted, and they specified a release.
	if test -z "$vinfo" && test -n "$release"; then
	  major=
	  case $version_type in
	  darwin)
	    # we can't check for "0.0" in archive_cmds due to quoting
	    # problems, so we reset it completely
	    verstring=
	    ;;
	  *)
	    verstring="0.0"
	    ;;
	  esac
	  if test "$need_version" = no; then
	    versuffix=
	  else
	    versuffix=".0.0"
	  fi
	fi

	# Remove version info from name if versioning should be avoided
	if test "$avoid_version" = yes && test "$need_version" = no; then
	  major=
	  versuffix=
	  verstring=""
	fi

	# Check to see if the archive will have undefined symbols.
	if test "$allow_undefined" = yes; then
	  if test "$allow_undefined_flag" = unsupported; then
	    func_warning "undefined symbols not allowed in $host shared libraries"
	    build_libtool_libs=no
	    build_old_libs=yes
	  fi
	else
	  # Don't allow undefined symbols.
	  allow_undefined_flag="$no_undefined_flag"
	fi

      fi

      func_generate_dlsyms "$libname" "$libname" "yes"
      libobjs+=" $symfileobj"
      test "X$libobjs" = "X " && libobjs=

      if test "$opt_mode" != relink; then
	# Remove our outputs, but don't remove object files since they
	# may have been created when compiling PIC objects.
	removelist=
	tempremovelist=`$ECHO "$output_objdir/*"`
	for p in $tempremovelist; do
	  case $p in
	    *.$objext | *.gcno)
	       ;;
	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
	       if test "X$precious_files_regex" != "X"; then
		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
		 then
		   continue
		 fi
	       fi
	       removelist+=" $p"
	       ;;
	    *) ;;
	  esac
	done
	test -n "$removelist" && \
	  func_show_eval "${RM}r \$removelist"
      fi

      # Now set the variables for building old libraries.
      if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
	oldlibs+=" $output_objdir/$libname.$libext"

	# Transform .lo files to .o files.
	oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP`
      fi

      # Eliminate all temporary directories.
      #for path in $notinst_path; do
      #	lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
      #	deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
      #	dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
      #done

      if test -n "$xrpath"; then
	# If the user specified any rpath flags, then add them.
	temp_xrpath=
	for libdir in $xrpath; do
	  func_replace_sysroot "$libdir"
	  temp_xrpath+=" -R$func_replace_sysroot_result"
	  case "$finalize_rpath " in
	  *" $libdir "*) ;;
	  *) finalize_rpath+=" $libdir" ;;
	  esac
	done
	if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
	  dependency_libs="$temp_xrpath $dependency_libs"
	fi
      fi

      # Make sure dlfiles contains only unique files that won't be dlpreopened
      old_dlfiles="$dlfiles"
      dlfiles=
      for lib in $old_dlfiles; do
	case " $dlprefiles $dlfiles " in
	*" $lib "*) ;;
	*) dlfiles+=" $lib" ;;
	esac
      done

      # Make sure dlprefiles contains only unique files
      old_dlprefiles="$dlprefiles"
      dlprefiles=
      for lib in $old_dlprefiles; do
	case "$dlprefiles " in
	*" $lib "*) ;;
	*) dlprefiles+=" $lib" ;;
	esac
      done

      if test "$build_libtool_libs" = yes; then
	if test -n "$rpath"; then
	  case $host in
	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
	    # these systems don't actually have a c library (as such)!
	    ;;
	  *-*-rhapsody* | *-*-darwin1.[012])
	    # Rhapsody C library is in the System framework
	    deplibs+=" System.ltframework"
	    ;;
	  *-*-netbsd*)
	    # Don't link with libc until the a.out ld.so is fixed.
	    ;;
	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
	    # Do not include libc due to us having libc/libc_r.
	    ;;
	  *-*-sco3.2v5* | *-*-sco5v6*)
	    # Causes problems with __ctype
	    ;;
	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
	    # Compiler inserts libc in the correct place for threads to work
	    ;;
	  *)
	    # Add libc to deplibs on all other systems if necessary.
	    if test "$build_libtool_need_lc" = "yes"; then
	      deplibs+=" -lc"
	    fi
	    ;;
	  esac
	fi

	# Transform deplibs into only deplibs that can be linked in shared.
	name_save=$name
	libname_save=$libname
	release_save=$release
	versuffix_save=$versuffix
	major_save=$major
	# I'm not sure if I'm treating the release correctly.  I think
	# release should show up in the -l (ie -lgmp5) so we don't want to
	# add it in twice.  Is that correct?
	release=""
	versuffix=""
	major=""
	newdeplibs=
	droppeddeps=no
	case $deplibs_check_method in
	pass_all)
	  # Don't check for shared/static.  Everything works.
	  # This might be a little naive.  We might want to check
	  # whether the library exists or not.  But this is on
	  # osf3 & osf4 and I'm not really sure... Just
	  # implementing what was already the behavior.
	  newdeplibs=$deplibs
	  ;;
	test_compile)
	  # This code stresses the "libraries are programs" paradigm to its
	  # limits. Maybe even breaks it.  We compile a program, linking it
	  # against the deplibs as a proxy for the library.  Then we can check
	  # whether they linked in statically or dynamically with ldd.
	  $opt_dry_run || $RM conftest.c
	  cat > conftest.c </dev/null`
		    $nocaseglob
		  else
		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
		  fi
		  for potent_lib in $potential_libs; do
		      # Follow soft links.
		      if ls -lLd "$potent_lib" 2>/dev/null |
			 $GREP " -> " >/dev/null; then
			continue
		      fi
		      # The statement above tries to avoid entering an
		      # endless loop below, in case of cyclic links.
		      # We might still enter an endless loop, since a link
		      # loop can be closed while we follow links,
		      # but so what?
		      potlib="$potent_lib"
		      while test -h "$potlib" 2>/dev/null; do
			potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
			case $potliblink in
			[\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
			*) potlib=`$ECHO "$potlib" | $SED 's,[^/]*$,,'`"$potliblink";;
			esac
		      done
		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
			 $SED -e 10q |
			 $EGREP "$file_magic_regex" > /dev/null; then
			newdeplibs+=" $a_deplib"
			a_deplib=""
			break 2
		      fi
		  done
		done
	      fi
	      if test -n "$a_deplib" ; then
		droppeddeps=yes
		echo
		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
		echo "*** I have the capability to make that library automatically link in when"
		echo "*** you link to this library.  But I can only do this if you have a"
		echo "*** shared version of the library, which you do not appear to have"
		echo "*** because I did check the linker path looking for a file starting"
		if test -z "$potlib" ; then
		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
		else
		  $ECHO "*** with $libname and none of the candidates passed a file format test"
		  $ECHO "*** using a file magic. Last file checked: $potlib"
		fi
	      fi
	      ;;
	    *)
	      # Add a -L argument.
	      newdeplibs+=" $a_deplib"
	      ;;
	    esac
	  done # Gone through all deplibs.
	  ;;
	match_pattern*)
	  set dummy $deplibs_check_method; shift
	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
	  for a_deplib in $deplibs; do
	    case $a_deplib in
	    -l*)
	      func_stripname -l '' "$a_deplib"
	      name=$func_stripname_result
	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
		case " $predeps $postdeps " in
		*" $a_deplib "*)
		  newdeplibs+=" $a_deplib"
		  a_deplib=""
		  ;;
		esac
	      fi
	      if test -n "$a_deplib" ; then
		libname=`eval "\\$ECHO \"$libname_spec\""`
		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
		  for potent_lib in $potential_libs; do
		    potlib="$potent_lib" # see symlink-check above in file_magic test
		    if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
		       $EGREP "$match_pattern_regex" > /dev/null; then
		      newdeplibs+=" $a_deplib"
		      a_deplib=""
		      break 2
		    fi
		  done
		done
	      fi
	      if test -n "$a_deplib" ; then
		droppeddeps=yes
		echo
		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
		echo "*** I have the capability to make that library automatically link in when"
		echo "*** you link to this library.  But I can only do this if you have a"
		echo "*** shared version of the library, which you do not appear to have"
		echo "*** because I did check the linker path looking for a file starting"
		if test -z "$potlib" ; then
		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
		else
		  $ECHO "*** with $libname and none of the candidates passed a file format test"
		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
		fi
	      fi
	      ;;
	    *)
	      # Add a -L argument.
	      newdeplibs+=" $a_deplib"
	      ;;
	    esac
	  done # Gone through all deplibs.
	  ;;
	none | unknown | *)
	  newdeplibs=""
	  tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
	  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
	    for i in $predeps $postdeps ; do
	      # can't use Xsed below, because $i might contain '/'
	      tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s,$i,,"`
	    done
	  fi
	  case $tmp_deplibs in
	  *[!\	\ ]*)
	    echo
	    if test "X$deplibs_check_method" = "Xnone"; then
	      echo "*** Warning: inter-library dependencies are not supported in this platform."
	    else
	      echo "*** Warning: inter-library dependencies are not known to be supported."
	    fi
	    echo "*** All declared inter-library dependencies are being dropped."
	    droppeddeps=yes
	    ;;
	  esac
	  ;;
	esac
	versuffix=$versuffix_save
	major=$major_save
	release=$release_save
	libname=$libname_save
	name=$name_save

	case $host in
	*-*-rhapsody* | *-*-darwin1.[012])
	  # On Rhapsody replace the C library with the System framework
	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
	  ;;
	esac

	if test "$droppeddeps" = yes; then
	  if test "$module" = yes; then
	    echo
	    echo "*** Warning: libtool could not satisfy all declared inter-library"
	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
	    echo "*** a static module, that should work as long as the dlopening"
	    echo "*** application is linked with the -dlopen flag."
	    if test -z "$global_symbol_pipe"; then
	      echo
	      echo "*** However, this would only work if libtool was able to extract symbol"
	      echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
	      echo "*** not find such a program.  So, this module is probably useless."
	      echo "*** \`nm' from GNU binutils and a full rebuild may help."
	    fi
	    if test "$build_old_libs" = no; then
	      oldlibs="$output_objdir/$libname.$libext"
	      build_libtool_libs=module
	      build_old_libs=yes
	    else
	      build_libtool_libs=no
	    fi
	  else
	    echo "*** The inter-library dependencies that have been dropped here will be"
	    echo "*** automatically added whenever a program is linked with this library"
	    echo "*** or is declared to -dlopen it."

	    if test "$allow_undefined" = no; then
	      echo
	      echo "*** Since this library must not contain undefined symbols,"
	      echo "*** because either the platform does not support them or"
	      echo "*** it was explicitly requested with -no-undefined,"
	      echo "*** libtool will only create a static version of it."
	      if test "$build_old_libs" = no; then
		oldlibs="$output_objdir/$libname.$libext"
		build_libtool_libs=module
		build_old_libs=yes
	      else
		build_libtool_libs=no
	      fi
	    fi
	  fi
	fi
	# Done checking deplibs!
	deplibs=$newdeplibs
      fi
      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
      case $host in
	*-*-darwin*)
	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	  new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	  deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	  ;;
      esac

      # move library search paths that coincide with paths to not yet
      # installed libraries to the beginning of the library search list
      new_libs=
      for path in $notinst_path; do
	case " $new_libs " in
	*" -L$path/$objdir "*) ;;
	*)
	  case " $deplibs " in
	  *" -L$path/$objdir "*)
	    new_libs+=" -L$path/$objdir" ;;
	  esac
	  ;;
	esac
      done
      for deplib in $deplibs; do
	case $deplib in
	-L*)
	  case " $new_libs " in
	  *" $deplib "*) ;;
	  *) new_libs+=" $deplib" ;;
	  esac
	  ;;
	*) new_libs+=" $deplib" ;;
	esac
      done
      deplibs="$new_libs"

      # All the library-specific variables (install_libdir is set above).
      library_names=
      old_library=
      dlname=

      # Test again, we may have decided not to build it any more
      if test "$build_libtool_libs" = yes; then
	# Remove ${wl} instances when linking with ld.
	# FIXME: should test the right _cmds variable.
	case $archive_cmds in
	  *\$LD\ *) wl= ;;
        esac
	if test "$hardcode_into_libs" = yes; then
	  # Hardcode the library paths
	  hardcode_libdirs=
	  dep_rpath=
	  rpath="$finalize_rpath"
	  test "$opt_mode" != relink && rpath="$compile_rpath$rpath"
	  for libdir in $rpath; do
	    if test -n "$hardcode_libdir_flag_spec"; then
	      if test -n "$hardcode_libdir_separator"; then
		func_replace_sysroot "$libdir"
		libdir=$func_replace_sysroot_result
		if test -z "$hardcode_libdirs"; then
		  hardcode_libdirs="$libdir"
		else
		  # Just accumulate the unique libdirs.
		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
		    ;;
		  *)
		    hardcode_libdirs+="$hardcode_libdir_separator$libdir"
		    ;;
		  esac
		fi
	      else
		eval flag=\"$hardcode_libdir_flag_spec\"
		dep_rpath+=" $flag"
	      fi
	    elif test -n "$runpath_var"; then
	      case "$perm_rpath " in
	      *" $libdir "*) ;;
	      *) perm_rpath+=" $libdir" ;;
	      esac
	    fi
	  done
	  # Substitute the hardcoded libdirs into the rpath.
	  if test -n "$hardcode_libdir_separator" &&
	     test -n "$hardcode_libdirs"; then
	    libdir="$hardcode_libdirs"
	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
	  fi
	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
	    # We should set the runpath_var.
	    rpath=
	    for dir in $perm_rpath; do
	      rpath+="$dir:"
	    done
	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
	  fi
	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
	fi

	shlibpath="$finalize_shlibpath"
	test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
	if test -n "$shlibpath"; then
	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
	fi

	# Get the real and link names of the library.
	eval shared_ext=\"$shrext_cmds\"
	eval library_names=\"$library_names_spec\"
	set dummy $library_names
	shift
	realname="$1"
	shift

	if test -n "$soname_spec"; then
	  eval soname=\"$soname_spec\"
	else
	  soname="$realname"
	fi
	if test -z "$dlname"; then
	  dlname=$soname
	fi

	lib="$output_objdir/$realname"
	linknames=
	for link
	do
	  linknames+=" $link"
	done

	# Use standard objects if they are pic
	test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
	test "X$libobjs" = "X " && libobjs=

	delfiles=
	if test -n "$export_symbols" && test -n "$include_expsyms"; then
	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
	  export_symbols="$output_objdir/$libname.uexp"
	  delfiles+=" $export_symbols"
	fi

	orig_export_symbols=
	case $host_os in
	cygwin* | mingw* | cegcc*)
	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
	    # exporting using user supplied symfile
	    if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
	      # and it's NOT already a .def file. Must figure out
	      # which of the given symbols are data symbols and tag
	      # them as such. So, trigger use of export_symbols_cmds.
	      # export_symbols gets reassigned inside the "prepare
	      # the list of exported symbols" if statement, so the
	      # include_expsyms logic still works.
	      orig_export_symbols="$export_symbols"
	      export_symbols=
	      always_export_symbols=yes
	    fi
	  fi
	  ;;
	esac

	# Prepare the list of exported symbols
	if test -z "$export_symbols"; then
	  if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
	    func_verbose "generating symbol list for \`$libname.la'"
	    export_symbols="$output_objdir/$libname.exp"
	    $opt_dry_run || $RM $export_symbols
	    cmds=$export_symbols_cmds
	    save_ifs="$IFS"; IFS='~'
	    for cmd1 in $cmds; do
	      IFS="$save_ifs"
	      # Take the normal branch if the nm_file_list_spec branch
	      # doesn't work or if tool conversion is not needed.
	      case $nm_file_list_spec~$to_tool_file_cmd in
		*~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
		  try_normal_branch=yes
		  eval cmd=\"$cmd1\"
		  func_len " $cmd"
		  len=$func_len_result
		  ;;
		*)
		  try_normal_branch=no
		  ;;
	      esac
	      if test "$try_normal_branch" = yes \
		 && { test "$len" -lt "$max_cmd_len" \
		      || test "$max_cmd_len" -le -1; }
	      then
		func_show_eval "$cmd" 'exit $?'
		skipped_export=false
	      elif test -n "$nm_file_list_spec"; then
		func_basename "$output"
		output_la=$func_basename_result
		save_libobjs=$libobjs
		save_output=$output
		output=${output_objdir}/${output_la}.nm
		func_to_tool_file "$output"
		libobjs=$nm_file_list_spec$func_to_tool_file_result
		delfiles+=" $output"
		func_verbose "creating $NM input file list: $output"
		for obj in $save_libobjs; do
		  func_to_tool_file "$obj"
		  $ECHO "$func_to_tool_file_result"
		done > "$output"
		eval cmd=\"$cmd1\"
		func_show_eval "$cmd" 'exit $?'
		output=$save_output
		libobjs=$save_libobjs
		skipped_export=false
	      else
		# The command line is too long to execute in one step.
		func_verbose "using reloadable object file for export list..."
		skipped_export=:
		# Break out early, otherwise skipped_export may be
		# set to false by a later but shorter cmd.
		break
	      fi
	    done
	    IFS="$save_ifs"
	    if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
	    fi
	  fi
	fi

	if test -n "$export_symbols" && test -n "$include_expsyms"; then
	  tmp_export_symbols="$export_symbols"
	  test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
	  $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
	fi

	if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
	  # The given exports_symbols file has to be filtered, so filter it.
	  func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
	  # 's' commands which not all seds can handle. GNU sed should be fine
	  # though. Also, the filter scales superlinearly with the number of
	  # global variables. join(1) would be nice here, but unfortunately
	  # isn't a blessed tool.
	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
	  delfiles+=" $export_symbols $output_objdir/$libname.filter"
	  export_symbols=$output_objdir/$libname.def
	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
	fi

	tmp_deplibs=
	for test_deplib in $deplibs; do
	  case " $convenience " in
	  *" $test_deplib "*) ;;
	  *)
	    tmp_deplibs+=" $test_deplib"
	    ;;
	  esac
	done
	deplibs="$tmp_deplibs"

	if test -n "$convenience"; then
	  if test -n "$whole_archive_flag_spec" &&
	    test "$compiler_needs_object" = yes &&
	    test -z "$libobjs"; then
	    # extract the archives, so we have objects to list.
	    # TODO: could optimize this to just extract one archive.
	    whole_archive_flag_spec=
	  fi
	  if test -n "$whole_archive_flag_spec"; then
	    save_libobjs=$libobjs
	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
	    test "X$libobjs" = "X " && libobjs=
	  else
	    gentop="$output_objdir/${outputname}x"
	    generated+=" $gentop"

	    func_extract_archives $gentop $convenience
	    libobjs+=" $func_extract_archives_result"
	    test "X$libobjs" = "X " && libobjs=
	  fi
	fi

	if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
	  eval flag=\"$thread_safe_flag_spec\"
	  linker_flags+=" $flag"
	fi

	# Make a backup of the uninstalled library when relinking
	if test "$opt_mode" = relink; then
	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
	fi

	# Do each of the archive commands.
	if test "$module" = yes && test -n "$module_cmds" ; then
	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
	    eval test_cmds=\"$module_expsym_cmds\"
	    cmds=$module_expsym_cmds
	  else
	    eval test_cmds=\"$module_cmds\"
	    cmds=$module_cmds
	  fi
	else
	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
	    eval test_cmds=\"$archive_expsym_cmds\"
	    cmds=$archive_expsym_cmds
	  else
	    eval test_cmds=\"$archive_cmds\"
	    cmds=$archive_cmds
	  fi
	fi

	if test "X$skipped_export" != "X:" &&
	   func_len " $test_cmds" &&
	   len=$func_len_result &&
	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
	  :
	else
	  # The command line is too long to link in one step, link piecewise
	  # or, if using GNU ld and skipped_export is not :, use a linker
	  # script.

	  # Save the value of $output and $libobjs because we want to
	  # use them later.  If we have whole_archive_flag_spec, we
	  # want to use save_libobjs as it was before
	  # whole_archive_flag_spec was expanded, because we can't
	  # assume the linker understands whole_archive_flag_spec.
	  # This may have to be revisited, in case too many
	  # convenience libraries get linked in and end up exceeding
	  # the spec.
	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
	    save_libobjs=$libobjs
	  fi
	  save_output=$output
	  func_basename "$output"
	  output_la=$func_basename_result

	  # Clear the reloadable object creation command queue and
	  # initialize k to one.
	  test_cmds=
	  concat_cmds=
	  objlist=
	  last_robj=
	  k=1

	  if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
	    output=${output_objdir}/${output_la}.lnkscript
	    func_verbose "creating GNU ld script: $output"
	    echo 'INPUT (' > $output
	    for obj in $save_libobjs
	    do
	      func_to_tool_file "$obj"
	      $ECHO "$func_to_tool_file_result" >> $output
	    done
	    echo ')' >> $output
	    delfiles+=" $output"
	    func_to_tool_file "$output"
	    output=$func_to_tool_file_result
	  elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
	    output=${output_objdir}/${output_la}.lnk
	    func_verbose "creating linker input file list: $output"
	    : > $output
	    set x $save_libobjs
	    shift
	    firstobj=
	    if test "$compiler_needs_object" = yes; then
	      firstobj="$1 "
	      shift
	    fi
	    for obj
	    do
	      func_to_tool_file "$obj"
	      $ECHO "$func_to_tool_file_result" >> $output
	    done
	    delfiles+=" $output"
	    func_to_tool_file "$output"
	    output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
	  else
	    if test -n "$save_libobjs"; then
	      func_verbose "creating reloadable object files..."
	      output=$output_objdir/$output_la-${k}.$objext
	      eval test_cmds=\"$reload_cmds\"
	      func_len " $test_cmds"
	      len0=$func_len_result
	      len=$len0

	      # Loop over the list of objects to be linked.
	      for obj in $save_libobjs
	      do
		func_len " $obj"
		func_arith $len + $func_len_result
		len=$func_arith_result
		if test "X$objlist" = X ||
		   test "$len" -lt "$max_cmd_len"; then
		  objlist+=" $obj"
		else
		  # The command $test_cmds is almost too long, add a
		  # command to the queue.
		  if test "$k" -eq 1 ; then
		    # The first file doesn't have a previous command to add.
		    reload_objs=$objlist
		    eval concat_cmds=\"$reload_cmds\"
		  else
		    # All subsequent reloadable object files will link in
		    # the last one created.
		    reload_objs="$objlist $last_robj"
		    eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
		  fi
		  last_robj=$output_objdir/$output_la-${k}.$objext
		  func_arith $k + 1
		  k=$func_arith_result
		  output=$output_objdir/$output_la-${k}.$objext
		  objlist=" $obj"
		  func_len " $last_robj"
		  func_arith $len0 + $func_len_result
		  len=$func_arith_result
		fi
	      done
	      # Handle the remaining objects by creating one last
	      # reloadable object file.  All subsequent reloadable object
	      # files will link in the last one created.
	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
	      reload_objs="$objlist $last_robj"
	      eval concat_cmds=\"\${concat_cmds}$reload_cmds\"
	      if test -n "$last_robj"; then
	        eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
	      fi
	      delfiles+=" $output"

	    else
	      output=
	    fi

	    if ${skipped_export-false}; then
	      func_verbose "generating symbol list for \`$libname.la'"
	      export_symbols="$output_objdir/$libname.exp"
	      $opt_dry_run || $RM $export_symbols
	      libobjs=$output
	      # Append the command to create the export file.
	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
	      if test -n "$last_robj"; then
		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
	      fi
	    fi

	    test -n "$save_libobjs" &&
	      func_verbose "creating a temporary reloadable object file: $output"

	    # Loop through the commands generated above and execute them.
	    save_ifs="$IFS"; IFS='~'
	    for cmd in $concat_cmds; do
	      IFS="$save_ifs"
	      $opt_silent || {
		  func_quote_for_expand "$cmd"
		  eval "func_echo $func_quote_for_expand_result"
	      }
	      $opt_dry_run || eval "$cmd" || {
		lt_exit=$?

		# Restore the uninstalled library and exit
		if test "$opt_mode" = relink; then
		  ( cd "$output_objdir" && \
		    $RM "${realname}T" && \
		    $MV "${realname}U" "$realname" )
		fi

		exit $lt_exit
	      }
	    done
	    IFS="$save_ifs"

	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
	    fi
	  fi

          if ${skipped_export-false}; then
	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
	      tmp_export_symbols="$export_symbols"
	      test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
	      $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
	    fi

	    if test -n "$orig_export_symbols"; then
	      # The given exports_symbols file has to be filtered, so filter it.
	      func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
	      # 's' commands which not all seds can handle. GNU sed should be fine
	      # though. Also, the filter scales superlinearly with the number of
	      # global variables. join(1) would be nice here, but unfortunately
	      # isn't a blessed tool.
	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
	      delfiles+=" $export_symbols $output_objdir/$libname.filter"
	      export_symbols=$output_objdir/$libname.def
	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
	    fi
	  fi

	  libobjs=$output
	  # Restore the value of output.
	  output=$save_output

	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
	    test "X$libobjs" = "X " && libobjs=
	  fi
	  # Expand the library linking commands again to reset the
	  # value of $libobjs for piecewise linking.

	  # Do each of the archive commands.
	  if test "$module" = yes && test -n "$module_cmds" ; then
	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
	      cmds=$module_expsym_cmds
	    else
	      cmds=$module_cmds
	    fi
	  else
	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
	      cmds=$archive_expsym_cmds
	    else
	      cmds=$archive_cmds
	    fi
	  fi
	fi

	if test -n "$delfiles"; then
	  # Append the command to remove temporary files to $cmds.
	  eval cmds=\"\$cmds~\$RM $delfiles\"
	fi

	# Add any objects from preloaded convenience libraries
	if test -n "$dlprefiles"; then
	  gentop="$output_objdir/${outputname}x"
	  generated+=" $gentop"

	  func_extract_archives $gentop $dlprefiles
	  libobjs+=" $func_extract_archives_result"
	  test "X$libobjs" = "X " && libobjs=
	fi

	save_ifs="$IFS"; IFS='~'
	for cmd in $cmds; do
	  IFS="$save_ifs"
	  eval cmd=\"$cmd\"
	  $opt_silent || {
	    func_quote_for_expand "$cmd"
	    eval "func_echo $func_quote_for_expand_result"
	  }
	  $opt_dry_run || eval "$cmd" || {
	    lt_exit=$?

	    # Restore the uninstalled library and exit
	    if test "$opt_mode" = relink; then
	      ( cd "$output_objdir" && \
	        $RM "${realname}T" && \
		$MV "${realname}U" "$realname" )
	    fi

	    exit $lt_exit
	  }
	done
	IFS="$save_ifs"

	# Restore the uninstalled library and exit
	if test "$opt_mode" = relink; then
	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?

	  if test -n "$convenience"; then
	    if test -z "$whole_archive_flag_spec"; then
	      func_show_eval '${RM}r "$gentop"'
	    fi
	  fi

	  exit $EXIT_SUCCESS
	fi

	# Create links to the real library.
	for linkname in $linknames; do
	  if test "$realname" != "$linkname"; then
	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
	  fi
	done

	# If -module or -export-dynamic was specified, set the dlname.
	if test "$module" = yes || test "$export_dynamic" = yes; then
	  # On all known operating systems, these are identical.
	  dlname="$soname"
	fi
      fi
      ;;

    obj)
      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
	func_warning "\`-dlopen' is ignored for objects"
      fi

      case " $deplibs" in
      *\ -l* | *\ -L*)
	func_warning "\`-l' and \`-L' are ignored for objects" ;;
      esac

      test -n "$rpath" && \
	func_warning "\`-rpath' is ignored for objects"

      test -n "$xrpath" && \
	func_warning "\`-R' is ignored for objects"

      test -n "$vinfo" && \
	func_warning "\`-version-info' is ignored for objects"

      test -n "$release" && \
	func_warning "\`-release' is ignored for objects"

      case $output in
      *.lo)
	test -n "$objs$old_deplibs" && \
	  func_fatal_error "cannot build library object \`$output' from non-libtool objects"

	libobj=$output
	func_lo2o "$libobj"
	obj=$func_lo2o_result
	;;
      *)
	libobj=
	obj="$output"
	;;
      esac

      # Delete the old objects.
      $opt_dry_run || $RM $obj $libobj

      # Objects from convenience libraries.  This assumes
      # single-version convenience libraries.  Whenever we create
      # different ones for PIC/non-PIC, this we'll have to duplicate
      # the extraction.
      reload_conv_objs=
      gentop=
      # reload_cmds runs $LD directly, so let us get rid of
      # -Wl from whole_archive_flag_spec and hope we can get by with
      # turning comma into space..
      wl=

      if test -n "$convenience"; then
	if test -n "$whole_archive_flag_spec"; then
	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
	  reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
	else
	  gentop="$output_objdir/${obj}x"
	  generated+=" $gentop"

	  func_extract_archives $gentop $convenience
	  reload_conv_objs="$reload_objs $func_extract_archives_result"
	fi
      fi

      # If we're not building shared, we need to use non_pic_objs
      test "$build_libtool_libs" != yes && libobjs="$non_pic_objects"

      # Create the old-style object.
      reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test

      output="$obj"
      func_execute_cmds "$reload_cmds" 'exit $?'

      # Exit if we aren't doing a library object file.
      if test -z "$libobj"; then
	if test -n "$gentop"; then
	  func_show_eval '${RM}r "$gentop"'
	fi

	exit $EXIT_SUCCESS
      fi

      if test "$build_libtool_libs" != yes; then
	if test -n "$gentop"; then
	  func_show_eval '${RM}r "$gentop"'
	fi

	# Create an invalid libtool object if no PIC, so that we don't
	# accidentally link it into a program.
	# $show "echo timestamp > $libobj"
	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
	exit $EXIT_SUCCESS
      fi

      if test -n "$pic_flag" || test "$pic_mode" != default; then
	# Only do commands if we really have different PIC objects.
	reload_objs="$libobjs $reload_conv_objs"
	output="$libobj"
	func_execute_cmds "$reload_cmds" 'exit $?'
      fi

      if test -n "$gentop"; then
	func_show_eval '${RM}r "$gentop"'
      fi

      exit $EXIT_SUCCESS
      ;;

    prog)
      case $host in
	*cygwin*) func_stripname '' '.exe' "$output"
	          output=$func_stripname_result.exe;;
      esac
      test -n "$vinfo" && \
	func_warning "\`-version-info' is ignored for programs"

      test -n "$release" && \
	func_warning "\`-release' is ignored for programs"

      test "$preload" = yes \
        && test "$dlopen_support" = unknown \
	&& test "$dlopen_self" = unknown \
	&& test "$dlopen_self_static" = unknown && \
	  func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."

      case $host in
      *-*-rhapsody* | *-*-darwin1.[012])
	# On Rhapsody replace the C library is the System framework
	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
	;;
      esac

      case $host in
      *-*-darwin*)
	# Don't allow lazy linking, it breaks C++ global constructors
	# But is supposedly fixed on 10.4 or later (yay!).
	if test "$tagname" = CXX ; then
	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
	    10.[0123])
	      compile_command+=" ${wl}-bind_at_load"
	      finalize_command+=" ${wl}-bind_at_load"
	    ;;
	  esac
	fi
	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
	;;
      esac


      # move library search paths that coincide with paths to not yet
      # installed libraries to the beginning of the library search list
      new_libs=
      for path in $notinst_path; do
	case " $new_libs " in
	*" -L$path/$objdir "*) ;;
	*)
	  case " $compile_deplibs " in
	  *" -L$path/$objdir "*)
	    new_libs+=" -L$path/$objdir" ;;
	  esac
	  ;;
	esac
      done
      for deplib in $compile_deplibs; do
	case $deplib in
	-L*)
	  case " $new_libs " in
	  *" $deplib "*) ;;
	  *) new_libs+=" $deplib" ;;
	  esac
	  ;;
	*) new_libs+=" $deplib" ;;
	esac
      done
      compile_deplibs="$new_libs"


      compile_command+=" $compile_deplibs"
      finalize_command+=" $finalize_deplibs"

      if test -n "$rpath$xrpath"; then
	# If the user specified any rpath flags, then add them.
	for libdir in $rpath $xrpath; do
	  # This is the magic to use -rpath.
	  case "$finalize_rpath " in
	  *" $libdir "*) ;;
	  *) finalize_rpath+=" $libdir" ;;
	  esac
	done
      fi

      # Now hardcode the library paths
      rpath=
      hardcode_libdirs=
      for libdir in $compile_rpath $finalize_rpath; do
	if test -n "$hardcode_libdir_flag_spec"; then
	  if test -n "$hardcode_libdir_separator"; then
	    if test -z "$hardcode_libdirs"; then
	      hardcode_libdirs="$libdir"
	    else
	      # Just accumulate the unique libdirs.
	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
		;;
	      *)
		hardcode_libdirs+="$hardcode_libdir_separator$libdir"
		;;
	      esac
	    fi
	  else
	    eval flag=\"$hardcode_libdir_flag_spec\"
	    rpath+=" $flag"
	  fi
	elif test -n "$runpath_var"; then
	  case "$perm_rpath " in
	  *" $libdir "*) ;;
	  *) perm_rpath+=" $libdir" ;;
	  esac
	fi
	case $host in
	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
	  testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
	  case :$dllsearchpath: in
	  *":$libdir:"*) ;;
	  ::) dllsearchpath=$libdir;;
	  *) dllsearchpath+=":$libdir";;
	  esac
	  case :$dllsearchpath: in
	  *":$testbindir:"*) ;;
	  ::) dllsearchpath=$testbindir;;
	  *) dllsearchpath+=":$testbindir";;
	  esac
	  ;;
	esac
      done
      # Substitute the hardcoded libdirs into the rpath.
      if test -n "$hardcode_libdir_separator" &&
	 test -n "$hardcode_libdirs"; then
	libdir="$hardcode_libdirs"
	eval rpath=\" $hardcode_libdir_flag_spec\"
      fi
      compile_rpath="$rpath"

      rpath=
      hardcode_libdirs=
      for libdir in $finalize_rpath; do
	if test -n "$hardcode_libdir_flag_spec"; then
	  if test -n "$hardcode_libdir_separator"; then
	    if test -z "$hardcode_libdirs"; then
	      hardcode_libdirs="$libdir"
	    else
	      # Just accumulate the unique libdirs.
	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
		;;
	      *)
		hardcode_libdirs+="$hardcode_libdir_separator$libdir"
		;;
	      esac
	    fi
	  else
	    eval flag=\"$hardcode_libdir_flag_spec\"
	    rpath+=" $flag"
	  fi
	elif test -n "$runpath_var"; then
	  case "$finalize_perm_rpath " in
	  *" $libdir "*) ;;
	  *) finalize_perm_rpath+=" $libdir" ;;
	  esac
	fi
      done
      # Substitute the hardcoded libdirs into the rpath.
      if test -n "$hardcode_libdir_separator" &&
	 test -n "$hardcode_libdirs"; then
	libdir="$hardcode_libdirs"
	eval rpath=\" $hardcode_libdir_flag_spec\"
      fi
      finalize_rpath="$rpath"

      if test -n "$libobjs" && test "$build_old_libs" = yes; then
	# Transform all the library objects into standard objects.
	compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
	finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
      fi

      func_generate_dlsyms "$outputname" "@PROGRAM@" "no"

      # template prelinking step
      if test -n "$prelink_cmds"; then
	func_execute_cmds "$prelink_cmds" 'exit $?'
      fi

      wrappers_required=yes
      case $host in
      *cegcc* | *mingw32ce*)
        # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
        wrappers_required=no
        ;;
      *cygwin* | *mingw* )
        if test "$build_libtool_libs" != yes; then
          wrappers_required=no
        fi
        ;;
      *)
        if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
          wrappers_required=no
        fi
        ;;
      esac
      if test "$wrappers_required" = no; then
	# Replace the output file specification.
	compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
	link_command="$compile_command$compile_rpath"

	# We have no uninstalled library dependencies, so finalize right now.
	exit_status=0
	func_show_eval "$link_command" 'exit_status=$?'

	if test -n "$postlink_cmds"; then
	  func_to_tool_file "$output"
	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
	  func_execute_cmds "$postlink_cmds" 'exit $?'
	fi

	# Delete the generated files.
	if test -f "$output_objdir/${outputname}S.${objext}"; then
	  func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
	fi

	exit $exit_status
      fi

      if test -n "$compile_shlibpath$finalize_shlibpath"; then
	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
      fi
      if test -n "$finalize_shlibpath"; then
	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
      fi

      compile_var=
      finalize_var=
      if test -n "$runpath_var"; then
	if test -n "$perm_rpath"; then
	  # We should set the runpath_var.
	  rpath=
	  for dir in $perm_rpath; do
	    rpath+="$dir:"
	  done
	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
	fi
	if test -n "$finalize_perm_rpath"; then
	  # We should set the runpath_var.
	  rpath=
	  for dir in $finalize_perm_rpath; do
	    rpath+="$dir:"
	  done
	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
	fi
      fi

      if test "$no_install" = yes; then
	# We don't need to create a wrapper script.
	link_command="$compile_var$compile_command$compile_rpath"
	# Replace the output file specification.
	link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
	# Delete the old output file.
	$opt_dry_run || $RM $output
	# Link the executable and exit
	func_show_eval "$link_command" 'exit $?'

	if test -n "$postlink_cmds"; then
	  func_to_tool_file "$output"
	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
	  func_execute_cmds "$postlink_cmds" 'exit $?'
	fi

	exit $EXIT_SUCCESS
      fi

      if test "$hardcode_action" = relink; then
	# Fast installation is not supported
	link_command="$compile_var$compile_command$compile_rpath"
	relink_command="$finalize_var$finalize_command$finalize_rpath"

	func_warning "this platform does not like uninstalled shared libraries"
	func_warning "\`$output' will be relinked during installation"
      else
	if test "$fast_install" != no; then
	  link_command="$finalize_var$compile_command$finalize_rpath"
	  if test "$fast_install" = yes; then
	    relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
	  else
	    # fast_install is set to needless
	    relink_command=
	  fi
	else
	  link_command="$compile_var$compile_command$compile_rpath"
	  relink_command="$finalize_var$finalize_command$finalize_rpath"
	fi
      fi

      # Replace the output file specification.
      link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`

      # Delete the old output files.
      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname

      func_show_eval "$link_command" 'exit $?'

      if test -n "$postlink_cmds"; then
	func_to_tool_file "$output_objdir/$outputname"
	postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
	func_execute_cmds "$postlink_cmds" 'exit $?'
      fi

      # Now create the wrapper script.
      func_verbose "creating $output"

      # Quote the relink command for shipping.
      if test -n "$relink_command"; then
	# Preserve any variables that may affect compiler behavior
	for var in $variables_saved_for_relink; do
	  if eval test -z \"\${$var+set}\"; then
	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
	  elif eval var_value=\$$var; test -z "$var_value"; then
	    relink_command="$var=; export $var; $relink_command"
	  else
	    func_quote_for_eval "$var_value"
	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
	  fi
	done
	relink_command="(cd `pwd`; $relink_command)"
	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
      fi

      # Only actually do things if not in dry run mode.
      $opt_dry_run || {
	# win32 will think the script is a binary if it has
	# a .exe suffix, so we strip it off here.
	case $output in
	  *.exe) func_stripname '' '.exe' "$output"
	         output=$func_stripname_result ;;
	esac
	# test for cygwin because mv fails w/o .exe extensions
	case $host in
	  *cygwin*)
	    exeext=.exe
	    func_stripname '' '.exe' "$outputname"
	    outputname=$func_stripname_result ;;
	  *) exeext= ;;
	esac
	case $host in
	  *cygwin* | *mingw* )
	    func_dirname_and_basename "$output" "" "."
	    output_name=$func_basename_result
	    output_path=$func_dirname_result
	    cwrappersource="$output_path/$objdir/lt-$output_name.c"
	    cwrapper="$output_path/$output_name.exe"
	    $RM $cwrappersource $cwrapper
	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15

	    func_emit_cwrapperexe_src > $cwrappersource

	    # The wrapper executable is built using the $host compiler,
	    # because it contains $host paths and files. If cross-
	    # compiling, it, like the target executable, must be
	    # executed on the $host or under an emulation environment.
	    $opt_dry_run || {
	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
	      $STRIP $cwrapper
	    }

	    # Now, create the wrapper script for func_source use:
	    func_ltwrapper_scriptname $cwrapper
	    $RM $func_ltwrapper_scriptname_result
	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
	    $opt_dry_run || {
	      # note: this script will not be executed, so do not chmod.
	      if test "x$build" = "x$host" ; then
		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
	      else
		func_emit_wrapper no > $func_ltwrapper_scriptname_result
	      fi
	    }
	  ;;
	  * )
	    $RM $output
	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15

	    func_emit_wrapper no > $output
	    chmod +x $output
	  ;;
	esac
      }
      exit $EXIT_SUCCESS
      ;;
    esac

    # See if we need to build an old-fashioned archive.
    for oldlib in $oldlibs; do

      if test "$build_libtool_libs" = convenience; then
	oldobjs="$libobjs_save $symfileobj"
	addlibs="$convenience"
	build_libtool_libs=no
      else
	if test "$build_libtool_libs" = module; then
	  oldobjs="$libobjs_save"
	  build_libtool_libs=no
	else
	  oldobjs="$old_deplibs $non_pic_objects"
	  if test "$preload" = yes && test -f "$symfileobj"; then
	    oldobjs+=" $symfileobj"
	  fi
	fi
	addlibs="$old_convenience"
      fi

      if test -n "$addlibs"; then
	gentop="$output_objdir/${outputname}x"
	generated+=" $gentop"

	func_extract_archives $gentop $addlibs
	oldobjs+=" $func_extract_archives_result"
      fi

      # Do each command in the archive commands.
      if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
	cmds=$old_archive_from_new_cmds
      else

	# Add any objects from preloaded convenience libraries
	if test -n "$dlprefiles"; then
	  gentop="$output_objdir/${outputname}x"
	  generated+=" $gentop"

	  func_extract_archives $gentop $dlprefiles
	  oldobjs+=" $func_extract_archives_result"
	fi

	# POSIX demands no paths to be encoded in archives.  We have
	# to avoid creating archives with duplicate basenames if we
	# might have to extract them afterwards, e.g., when creating a
	# static archive out of a convenience library, or when linking
	# the entirety of a libtool archive into another (currently
	# not supported by libtool).
	if (for obj in $oldobjs
	    do
	      func_basename "$obj"
	      $ECHO "$func_basename_result"
	    done | sort | sort -uc >/dev/null 2>&1); then
	  :
	else
	  echo "copying selected object files to avoid basename conflicts..."
	  gentop="$output_objdir/${outputname}x"
	  generated+=" $gentop"
	  func_mkdir_p "$gentop"
	  save_oldobjs=$oldobjs
	  oldobjs=
	  counter=1
	  for obj in $save_oldobjs
	  do
	    func_basename "$obj"
	    objbase="$func_basename_result"
	    case " $oldobjs " in
	    " ") oldobjs=$obj ;;
	    *[\ /]"$objbase "*)
	      while :; do
		# Make sure we don't pick an alternate name that also
		# overlaps.
		newobj=lt$counter-$objbase
		func_arith $counter + 1
		counter=$func_arith_result
		case " $oldobjs " in
		*[\ /]"$newobj "*) ;;
		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
		esac
	      done
	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
	      oldobjs+=" $gentop/$newobj"
	      ;;
	    *) oldobjs+=" $obj" ;;
	    esac
	  done
	fi
	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
	tool_oldlib=$func_to_tool_file_result
	eval cmds=\"$old_archive_cmds\"

	func_len " $cmds"
	len=$func_len_result
	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
	  cmds=$old_archive_cmds
	elif test -n "$archiver_list_spec"; then
	  func_verbose "using command file archive linking..."
	  for obj in $oldobjs
	  do
	    func_to_tool_file "$obj"
	    $ECHO "$func_to_tool_file_result"
	  done > $output_objdir/$libname.libcmd
	  func_to_tool_file "$output_objdir/$libname.libcmd"
	  oldobjs=" $archiver_list_spec$func_to_tool_file_result"
	  cmds=$old_archive_cmds
	else
	  # the command line is too long to link in one step, link in parts
	  func_verbose "using piecewise archive linking..."
	  save_RANLIB=$RANLIB
	  RANLIB=:
	  objlist=
	  concat_cmds=
	  save_oldobjs=$oldobjs
	  oldobjs=
	  # Is there a better way of finding the last object in the list?
	  for obj in $save_oldobjs
	  do
	    last_oldobj=$obj
	  done
	  eval test_cmds=\"$old_archive_cmds\"
	  func_len " $test_cmds"
	  len0=$func_len_result
	  len=$len0
	  for obj in $save_oldobjs
	  do
	    func_len " $obj"
	    func_arith $len + $func_len_result
	    len=$func_arith_result
	    objlist+=" $obj"
	    if test "$len" -lt "$max_cmd_len"; then
	      :
	    else
	      # the above command should be used before it gets too long
	      oldobjs=$objlist
	      if test "$obj" = "$last_oldobj" ; then
		RANLIB=$save_RANLIB
	      fi
	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
	      eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
	      objlist=
	      len=$len0
	    fi
	  done
	  RANLIB=$save_RANLIB
	  oldobjs=$objlist
	  if test "X$oldobjs" = "X" ; then
	    eval cmds=\"\$concat_cmds\"
	  else
	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
	  fi
	fi
      fi
      func_execute_cmds "$cmds" 'exit $?'
    done

    test -n "$generated" && \
      func_show_eval "${RM}r$generated"

    # Now create the libtool archive.
    case $output in
    *.la)
      old_library=
      test "$build_old_libs" = yes && old_library="$libname.$libext"
      func_verbose "creating $output"

      # Preserve any variables that may affect compiler behavior
      for var in $variables_saved_for_relink; do
	if eval test -z \"\${$var+set}\"; then
	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
	elif eval var_value=\$$var; test -z "$var_value"; then
	  relink_command="$var=; export $var; $relink_command"
	else
	  func_quote_for_eval "$var_value"
	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
	fi
      done
      # Quote the link command for shipping.
      relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
      if test "$hardcode_automatic" = yes ; then
	relink_command=
      fi

      # Only create the output if not a dry run.
      $opt_dry_run || {
	for installed in no yes; do
	  if test "$installed" = yes; then
	    if test -z "$install_libdir"; then
	      break
	    fi
	    output="$output_objdir/$outputname"i
	    # Replace all uninstalled libtool libraries with the installed ones
	    newdependency_libs=
	    for deplib in $dependency_libs; do
	      case $deplib in
	      *.la)
		func_basename "$deplib"
		name="$func_basename_result"
		func_resolve_sysroot "$deplib"
		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
		test -z "$libdir" && \
		  func_fatal_error "\`$deplib' is not a valid libtool archive"
		newdependency_libs+=" ${lt_sysroot:+=}$libdir/$name"
		;;
	      -L*)
		func_stripname -L '' "$deplib"
		func_replace_sysroot "$func_stripname_result"
		newdependency_libs+=" -L$func_replace_sysroot_result"
		;;
	      -R*)
		func_stripname -R '' "$deplib"
		func_replace_sysroot "$func_stripname_result"
		newdependency_libs+=" -R$func_replace_sysroot_result"
		;;
	      *) newdependency_libs+=" $deplib" ;;
	      esac
	    done
	    dependency_libs="$newdependency_libs"
	    newdlfiles=

	    for lib in $dlfiles; do
	      case $lib in
	      *.la)
	        func_basename "$lib"
		name="$func_basename_result"
		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
		test -z "$libdir" && \
		  func_fatal_error "\`$lib' is not a valid libtool archive"
		newdlfiles+=" ${lt_sysroot:+=}$libdir/$name"
		;;
	      *) newdlfiles+=" $lib" ;;
	      esac
	    done
	    dlfiles="$newdlfiles"
	    newdlprefiles=
	    for lib in $dlprefiles; do
	      case $lib in
	      *.la)
		# Only pass preopened files to the pseudo-archive (for
		# eventual linking with the app. that links it) if we
		# didn't already link the preopened objects directly into
		# the library:
		func_basename "$lib"
		name="$func_basename_result"
		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
		test -z "$libdir" && \
		  func_fatal_error "\`$lib' is not a valid libtool archive"
		newdlprefiles+=" ${lt_sysroot:+=}$libdir/$name"
		;;
	      esac
	    done
	    dlprefiles="$newdlprefiles"
	  else
	    newdlfiles=
	    for lib in $dlfiles; do
	      case $lib in
		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
		*) abs=`pwd`"/$lib" ;;
	      esac
	      newdlfiles+=" $abs"
	    done
	    dlfiles="$newdlfiles"
	    newdlprefiles=
	    for lib in $dlprefiles; do
	      case $lib in
		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
		*) abs=`pwd`"/$lib" ;;
	      esac
	      newdlprefiles+=" $abs"
	    done
	    dlprefiles="$newdlprefiles"
	  fi
	  $RM $output
	  # place dlname in correct position for cygwin
	  # In fact, it would be nice if we could use this code for all target
	  # systems that can't hard-code library paths into their executables
	  # and that have no shared library path variable independent of PATH,
	  # but it turns out we can't easily determine that from inspecting
	  # libtool variables, so we have to hard-code the OSs to which it
	  # applies here; at the moment, that means platforms that use the PE
	  # object format with DLL files.  See the long comment at the top of
	  # tests/bindir.at for full details.
	  tdlname=$dlname
	  case $host,$output,$installed,$module,$dlname in
	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
	      # If a -bindir argument was supplied, place the dll there.
	      if test "x$bindir" != x ;
	      then
		func_relative_path "$install_libdir" "$bindir"
		tdlname=$func_relative_path_result$dlname
	      else
		# Otherwise fall back on heuristic.
		tdlname=../bin/$dlname
	      fi
	      ;;
	  esac
	  $ECHO > $output "\
# $outputname - a libtool library file
# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
#
# Please DO NOT delete this file!
# It is necessary for linking the library.

# The name that we can dlopen(3).
dlname='$tdlname'

# Names of this library.
library_names='$library_names'

# The name of the static archive.
old_library='$old_library'

# Linker flags that can not go in dependency_libs.
inherited_linker_flags='$new_inherited_linker_flags'

# Libraries that this one depends upon.
dependency_libs='$dependency_libs'

# Names of additional weak libraries provided by this library
weak_library_names='$weak_libs'

# Version information for $libname.
current=$current
age=$age
revision=$revision

# Is this an already installed library?
installed=$installed

# Should we warn about portability when linking against -modules?
shouldnotlink=$module

# Files to dlopen/dlpreopen
dlopen='$dlfiles'
dlpreopen='$dlprefiles'

# Directory that this library needs to be installed in:
libdir='$install_libdir'"
	  if test "$installed" = no && test "$need_relink" = yes; then
	    $ECHO >> $output "\
relink_command=\"$relink_command\""
	  fi
	done
      }

      # Do a symbolic link so that the libtool archive can be found in
      # LD_LIBRARY_PATH before the program is installed.
      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
      ;;
    esac
    exit $EXIT_SUCCESS
}

{ test "$opt_mode" = link || test "$opt_mode" = relink; } &&
    func_mode_link ${1+"$@"}


# func_mode_uninstall arg...
func_mode_uninstall ()
{
    $opt_debug
    RM="$nonopt"
    files=
    rmforce=
    exit_status=0

    # This variable tells wrapper scripts just to set variables rather
    # than running their programs.
    libtool_install_magic="$magic"

    for arg
    do
      case $arg in
      -f) RM+=" $arg"; rmforce=yes ;;
      -*) RM+=" $arg" ;;
      *) files+=" $arg" ;;
      esac
    done

    test -z "$RM" && \
      func_fatal_help "you must specify an RM program"

    rmdirs=

    for file in $files; do
      func_dirname "$file" "" "."
      dir="$func_dirname_result"
      if test "X$dir" = X.; then
	odir="$objdir"
      else
	odir="$dir/$objdir"
      fi
      func_basename "$file"
      name="$func_basename_result"
      test "$opt_mode" = uninstall && odir="$dir"

      # Remember odir for removal later, being careful to avoid duplicates
      if test "$opt_mode" = clean; then
	case " $rmdirs " in
	  *" $odir "*) ;;
	  *) rmdirs+=" $odir" ;;
	esac
      fi

      # Don't error if the file doesn't exist and rm -f was used.
      if { test -L "$file"; } >/dev/null 2>&1 ||
	 { test -h "$file"; } >/dev/null 2>&1 ||
	 test -f "$file"; then
	:
      elif test -d "$file"; then
	exit_status=1
	continue
      elif test "$rmforce" = yes; then
	continue
      fi

      rmfiles="$file"

      case $name in
      *.la)
	# Possibly a libtool archive, so verify it.
	if func_lalib_p "$file"; then
	  func_source $dir/$name

	  # Delete the libtool libraries and symlinks.
	  for n in $library_names; do
	    rmfiles+=" $odir/$n"
	  done
	  test -n "$old_library" && rmfiles+=" $odir/$old_library"

	  case "$opt_mode" in
	  clean)
	    case " $library_names " in
	    *" $dlname "*) ;;
	    *) test -n "$dlname" && rmfiles+=" $odir/$dlname" ;;
	    esac
	    test -n "$libdir" && rmfiles+=" $odir/$name $odir/${name}i"
	    ;;
	  uninstall)
	    if test -n "$library_names"; then
	      # Do each command in the postuninstall commands.
	      func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
	    fi

	    if test -n "$old_library"; then
	      # Do each command in the old_postuninstall commands.
	      func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
	    fi
	    # FIXME: should reinstall the best remaining shared library.
	    ;;
	  esac
	fi
	;;

      *.lo)
	# Possibly a libtool object, so verify it.
	if func_lalib_p "$file"; then

	  # Read the .lo file
	  func_source $dir/$name

	  # Add PIC object to the list of files to remove.
	  if test -n "$pic_object" &&
	     test "$pic_object" != none; then
	    rmfiles+=" $dir/$pic_object"
	  fi

	  # Add non-PIC object to the list of files to remove.
	  if test -n "$non_pic_object" &&
	     test "$non_pic_object" != none; then
	    rmfiles+=" $dir/$non_pic_object"
	  fi
	fi
	;;

      *)
	if test "$opt_mode" = clean ; then
	  noexename=$name
	  case $file in
	  *.exe)
	    func_stripname '' '.exe' "$file"
	    file=$func_stripname_result
	    func_stripname '' '.exe' "$name"
	    noexename=$func_stripname_result
	    # $file with .exe has already been added to rmfiles,
	    # add $file without .exe
	    rmfiles+=" $file"
	    ;;
	  esac
	  # Do a test to see if this is a libtool program.
	  if func_ltwrapper_p "$file"; then
	    if func_ltwrapper_executable_p "$file"; then
	      func_ltwrapper_scriptname "$file"
	      relink_command=
	      func_source $func_ltwrapper_scriptname_result
	      rmfiles+=" $func_ltwrapper_scriptname_result"
	    else
	      relink_command=
	      func_source $dir/$noexename
	    fi

	    # note $name still contains .exe if it was in $file originally
	    # as does the version of $file that was added into $rmfiles
	    rmfiles+=" $odir/$name $odir/${name}S.${objext}"
	    if test "$fast_install" = yes && test -n "$relink_command"; then
	      rmfiles+=" $odir/lt-$name"
	    fi
	    if test "X$noexename" != "X$name" ; then
	      rmfiles+=" $odir/lt-${noexename}.c"
	    fi
	  fi
	fi
	;;
      esac
      func_show_eval "$RM $rmfiles" 'exit_status=1'
    done

    # Try to remove the ${objdir}s in the directories where we deleted files
    for dir in $rmdirs; do
      if test -d "$dir"; then
	func_show_eval "rmdir $dir >/dev/null 2>&1"
      fi
    done

    exit $exit_status
}

{ test "$opt_mode" = uninstall || test "$opt_mode" = clean; } &&
    func_mode_uninstall ${1+"$@"}

test -z "$opt_mode" && {
  help="$generic_help"
  func_fatal_help "you must specify a MODE"
}

test -z "$exec_cmd" && \
  func_fatal_help "invalid operation mode \`$opt_mode'"

if test -n "$exec_cmd"; then
  eval exec "$exec_cmd"
  exit $EXIT_FAILURE
fi

exit $exit_status


# The TAGs below are defined such that we never get into a situation
# in which we disable both kinds of libraries.  Given conflicting
# choices, we go for a static library, that is the most portable,
# since we can't tell whether shared libraries were disabled because
# the user asked for that or because the platform doesn't support
# them.  This is particularly important on AIX, because we don't
# support having both static and shared libraries enabled at the same
# time on that platform, so we default to a shared-only configuration.
# If a disable-shared tag is given, we'll fallback to a static-only
# configuration.  But we'll never go from static-only to shared-only.

# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
build_libtool_libs=no
build_old_libs=yes
# ### END LIBTOOL TAG CONFIG: disable-shared

# ### BEGIN LIBTOOL TAG CONFIG: disable-static
build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
# ### END LIBTOOL TAG CONFIG: disable-static

# Local Variables:
# mode:shell-script
# sh-indentation:2
# End:
# vi:sw=2


# ### BEGIN LIBTOOL TAG CONFIG: CXX

# The linker used to build libraries.
LD="/usr/bin/ld -m elf_x86_64"

# How to create reloadable object files.
reload_flag=" -r"
reload_cmds="\$LD\$reload_flag -o \$output\$reload_objs"

# Commands used to build an old-style archive.
old_archive_cmds="\$AR \$AR_FLAGS \$oldlib\$oldobjs~\$RANLIB \$tool_oldlib"

# A language specific compiler.
CC="g++"

# Is the compiler the GNU compiler?
with_gcc=yes

# Compiler flag to turn off builtin functions.
no_builtin_flag=" -fno-builtin"

# Additional compiler flags for building library objects.
pic_flag=" -fPIC -DPIC"

# How to pass a linker flag through the compiler.
wl="-Wl,"

# Compiler flag to prevent dynamic linking.
link_static_flag="-static"

# Does compiler simultaneously support -c and -o options?
compiler_c_o="yes"

# Whether or not to add -lc for building shared libraries.
build_libtool_need_lc=no

# Whether or not to disallow shared libs when runtime libs are static.
allow_libtool_libs_with_static_runtimes=no

# Compiler flag to allow reflexive dlopens.
export_dynamic_flag_spec="\${wl}--export-dynamic"

# Compiler flag to generate shared objects directly from archives.
whole_archive_flag_spec="\${wl}--whole-archive\$convenience \${wl}--no-whole-archive"

# Whether the compiler copes with passing no objects directly.
compiler_needs_object="no"

# Create an old-style archive from a shared archive.
old_archive_from_new_cmds=""

# Create a temporary old-style archive to link instead of a shared archive.
old_archive_from_expsyms_cmds=""

# Commands used to build a shared archive.
archive_cmds="\$CC \$pic_flag -shared -nostdlib \$predep_objects \$libobjs \$deplibs \$postdep_objects \$compiler_flags \${wl}-soname \$wl\$soname -o \$lib"
archive_expsym_cmds="\$CC \$pic_flag -shared -nostdlib \$predep_objects \$libobjs \$deplibs \$postdep_objects \$compiler_flags \${wl}-soname \$wl\$soname \${wl}-retain-symbols-file \$wl\$export_symbols -o \$lib"

# Commands used to build a loadable module if different from building
# a shared archive.
module_cmds=""
module_expsym_cmds=""

# Whether we are building with GNU ld or not.
with_gnu_ld="yes"

# Flag that allows shared libraries with undefined symbols to be built.
allow_undefined_flag=""

# Flag that enforces no undefined symbols.
no_undefined_flag=""

# Flag to hardcode $libdir into a binary during linking.
# This must work even if $libdir does not exist
hardcode_libdir_flag_spec="\${wl}-rpath \${wl}\$libdir"

# Whether we need a single "-rpath" flag with a separated argument.
hardcode_libdir_separator=""

# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
# DIR into the resulting binary.
hardcode_direct=no

# Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
# DIR into the resulting binary and the resulting library dependency is
# "absolute",i.e impossible to change by setting ${shlibpath_var} if the
# library is relocated.
hardcode_direct_absolute=no

# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
# into the resulting binary.
hardcode_minus_L=no

# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
# into the resulting binary.
hardcode_shlibpath_var=unsupported

# Set to "yes" if building a shared library automatically hardcodes DIR
# into the library and all subsequent libraries and executables linked
# against it.
hardcode_automatic=no

# Set to yes if linker adds runtime paths of dependent libraries
# to runtime path list.
inherit_rpath=no

# Whether libtool must link a program against all its dependency libraries.
link_all_deplibs=no

# Set to "yes" if exported symbols are required.
always_export_symbols=no

# The commands to list exported symbols.
export_symbols_cmds="\$NM \$libobjs \$convenience | \$global_symbol_pipe | \$SED 's/.* //' | sort | uniq > \$export_symbols"

# Symbols that should not be listed in the preloaded symbols.
exclude_expsyms="_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*"

# Symbols that must always be exported.
include_expsyms=""

# Commands necessary for linking programs (against libraries) with templates.
prelink_cmds=""

# Commands necessary for finishing linking programs.
postlink_cmds=""

# Specify filename containing input files.
file_list_spec=""

# How to hardcode a shared library path into an executable.
hardcode_action=immediate

# The directories searched by this compiler when creating a shared library.
compiler_lib_search_dirs="/usr/lib/gcc/x86_64-linux-gnu/4.9 /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /usr/lib/gcc/x86_64-linux-gnu/4.9/../../.."

# Dependencies to place before and after the objects being linked to
# create a shared library.
predep_objects="/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/crti.o /usr/lib/gcc/x86_64-linux-gnu/4.9/crtbeginS.o"
postdep_objects="/usr/lib/gcc/x86_64-linux-gnu/4.9/crtendS.o /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu/crtn.o"
predeps=""
postdeps="-lstdc++ -lm -lgcc_s -lc -lgcc_s"

# The library search path used internally by the compiler when linking
# a shared library.
compiler_lib_search_path="-L/usr/lib/gcc/x86_64-linux-gnu/4.9 -L/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../x86_64-linux-gnu -L/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../lib -L/lib/x86_64-linux-gnu -L/lib/../lib -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-linux-gnu/4.9/../../.."

# ### END LIBTOOL TAG CONFIG: CXX
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	ProjectSection(ProjectDependencies) = postProject
	EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tcmalloc_minimal_unittest", "vsprojects\tcmalloc_minimal_unittest\tcmalloc_minimal_unittest.vcproj", "{7CC73D97-C057-43A6-82EF-E6B567488D02}"
	ProjectSection(ProjectDependencies) = postProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tcmalloc_minimal_large_unittest", "vsprojects\tcmalloc_minimal_large\tcmalloc_minimal_large_unittest.vcproj", "{2D8B9599-C74C-4298-B723-6CF6077563E3}"
	ProjectSection(ProjectDependencies) = postProject
		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F} = {55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}
	EndProjectSection
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "addressmap_unittest", "vsprojects\addressmap_unittest\addressmap_unittest.vcproj", "{32EECEB6-7D18-477E-BC7A-30CE98457A88}"
	ProjectSection(ProjectDependencies) = postProject
	EndProjectSection
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "frag_unittest", "vsprojects\frag_unittest\frag_unittest.vcproj", "{24754725-DE0D-4214-8979-324247AAD78E}"
	ProjectSection(ProjectDependencies) = postProject
		{55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F} = {55E2B3AE-3CA1-4DB6-97F7-0A044D6F446F}
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "low_level_alloc_unittest", "vsprojects\low_level_alloc_unittest\low_level_alloc_unittest.vcproj", "{A765198D-5305-4AB0-9A21-A0CD8201EB2A}"
	ProjectSection(ProjectDependencies) = postProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "malloc_hook_test", "vsprojects\malloc_hook_test\malloc_hook_test.vcproj", "{3765198D-AA05-4AB0-9A21-A0CD8201EB2A}"
	ProjectSection(ProjectDependencies) = postProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "malloc_extension_test", "vsprojects\malloc_extension_test\malloc_extension_test.vcproj", "{3765198D-5305-4AB0-9A21-A0CD8201EB2A}"
	ProjectSection(ProjectDependencies) = postProject
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	EndProjectSection
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "markidle_unittest", "vsprojects\markidle_unittest\markidle_unittest.vcproj", "{4AF7E21D-9D0A-410C-A7DB-7D21DA5166C0}"
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	ProjectSection(ProjectDependencies) = postProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "packed-cache_test", "vsprojects\packed-cache_test\packed-cache_test.vcproj", "{605D3CED-B530-424E-B7D2-2A31F14FD570}"
	ProjectSection(ProjectDependencies) = postProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "preamble_patcher_test", "vsprojects\preamble_patcher_test\preamble_patcher_test.vcproj", "{5765198D-5305-4AB0-9A21-A0CD8201EB2A}"
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "addr2line-pdb", "vsprojects\addr2line-pdb\addr2line-pdb.vcproj", "{81CA712E-90B8-4AE5-9E89-5B436578D6DA}"
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