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you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License only. * * 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include "../libringbuffer/backend.h" #include "../libringbuffer/frontend.h" #include "../liblttng-ust/wait.h" #include "../liblttng-ust/lttng-rb-clients.h" /* * Number of milliseconds to retry before failing metadata writes on * buffer full condition. (10 seconds) */ #define LTTNG_METADATA_TIMEOUT_MSEC 10000 /* * Channel representation within consumer. */ struct ustctl_consumer_channel { struct lttng_channel *chan; /* lttng channel buffers */ /* initial attributes */ struct ustctl_consumer_channel_attr attr; int wait_fd; /* monitor close() */ int wakeup_fd; /* monitor close() */ }; /* * Stream representation within consumer. */ struct ustctl_consumer_stream { struct lttng_ust_shm_handle *handle; /* shared-memory handle */ struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *chan; int shm_fd, wait_fd, wakeup_fd; int cpu; uint64_t memory_map_size; }; extern void lttng_ring_buffer_client_overwrite_init(void); extern void lttng_ring_buffer_client_overwrite_rt_init(void); extern void lttng_ring_buffer_client_discard_init(void); extern void lttng_ring_buffer_client_discard_rt_init(void); extern void lttng_ring_buffer_metadata_client_init(void); extern void lttng_ring_buffer_client_overwrite_exit(void); extern void lttng_ring_buffer_client_overwrite_rt_exit(void); extern void lttng_ring_buffer_client_discard_exit(void); extern void lttng_ring_buffer_client_discard_rt_exit(void); extern void lttng_ring_buffer_metadata_client_exit(void); volatile enum ust_loglevel ust_loglevel; int ustctl_release_handle(int sock, int handle) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; if (sock < 0 || handle < 0) return 0; memset(&lum, 0, sizeof(lum)); lum.handle = handle; lum.cmd = LTTNG_UST_RELEASE; return ustcomm_send_app_cmd(sock, &lum, &lur); } /* * If sock is negative, it means we don't have to notify the other side * (e.g. application has already vanished). */ int ustctl_release_object(int sock, struct lttng_ust_object_data *data) { int ret; if (!data) return -EINVAL; switch (data->type) { case LTTNG_UST_OBJECT_TYPE_CHANNEL: if (data->u.channel.wakeup_fd >= 0) { ret = close(data->u.channel.wakeup_fd); if (ret < 0) { ret = -errno; return ret; } } free(data->u.channel.data); break; case LTTNG_UST_OBJECT_TYPE_STREAM: if (data->u.stream.shm_fd >= 0) { ret = close(data->u.stream.shm_fd); if (ret < 0) { ret = -errno; return ret; } } if (data->u.stream.wakeup_fd >= 0) { ret = close(data->u.stream.wakeup_fd); if (ret < 0) { ret = -errno; return ret; } } break; case LTTNG_UST_OBJECT_TYPE_EVENT: case LTTNG_UST_OBJECT_TYPE_CONTEXT: break; default: assert(0); } return ustctl_release_handle(sock, data->handle); } /* * Send registration done packet to the application. */ int ustctl_register_done(int sock) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; DBG("Sending register done command to %d", sock); memset(&lum, 0, sizeof(lum)); lum.handle = LTTNG_UST_ROOT_HANDLE; lum.cmd = LTTNG_UST_REGISTER_DONE; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; return 0; } /* * returns session handle. */ int ustctl_create_session(int sock) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret, session_handle; /* Create session */ memset(&lum, 0, sizeof(lum)); lum.handle = LTTNG_UST_ROOT_HANDLE; lum.cmd = LTTNG_UST_SESSION; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; session_handle = lur.ret_val; DBG("received session handle %u", session_handle); return session_handle; } int ustctl_create_event(int sock, struct lttng_ust_event *ev, struct lttng_ust_object_data *channel_data, struct lttng_ust_object_data **_event_data) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; struct lttng_ust_object_data *event_data; int ret; if (!channel_data || !_event_data) return -EINVAL; event_data = zmalloc(sizeof(*event_data)); if (!event_data) return -ENOMEM; event_data->type = LTTNG_UST_OBJECT_TYPE_EVENT; memset(&lum, 0, sizeof(lum)); lum.handle = channel_data->handle; lum.cmd = LTTNG_UST_EVENT; strncpy(lum.u.event.name, ev->name, LTTNG_UST_SYM_NAME_LEN); lum.u.event.instrumentation = ev->instrumentation; lum.u.event.loglevel_type = ev->loglevel_type; lum.u.event.loglevel = ev->loglevel; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) { free(event_data); return ret; } event_data->handle = lur.ret_val; DBG("received event handle %u", event_data->handle); *_event_data = event_data; return 0; } int ustctl_add_context(int sock, struct lttng_ust_context *ctx, struct lttng_ust_object_data *obj_data, struct lttng_ust_object_data **_context_data) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; struct lttng_ust_object_data *context_data; int ret; if (!obj_data || !_context_data) return -EINVAL; context_data = zmalloc(sizeof(*context_data)); if (!context_data) return -ENOMEM; context_data->type = LTTNG_UST_OBJECT_TYPE_CONTEXT; memset(&lum, 0, sizeof(lum)); lum.handle = obj_data->handle; lum.cmd = LTTNG_UST_CONTEXT; lum.u.context.ctx = ctx->ctx; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) { free(context_data); return ret; } context_data->handle = -1; DBG("Context created successfully"); *_context_data = context_data; return ret; } int ustctl_set_filter(int sock, struct lttng_ust_filter_bytecode *bytecode, struct lttng_ust_object_data *obj_data) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!obj_data) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = obj_data->handle; lum.cmd = LTTNG_UST_FILTER; lum.u.filter.data_size = bytecode->len; lum.u.filter.reloc_offset = bytecode->reloc_offset; lum.u.filter.seqnum = bytecode->seqnum; ret = ustcomm_send_app_msg(sock, &lum); if (ret) return ret; /* send var len bytecode */ ret = ustcomm_send_unix_sock(sock, bytecode->data, bytecode->len); if (ret < 0) { return ret; } if (ret != bytecode->len) return -EINVAL; return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd); } int ustctl_set_exclusion(int sock, struct lttng_ust_event_exclusion *exclusion, struct lttng_ust_object_data *obj_data) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!obj_data) { return -EINVAL; } memset(&lum, 0, sizeof(lum)); lum.handle = obj_data->handle; lum.cmd = LTTNG_UST_EXCLUSION; lum.u.exclusion.count = exclusion->count; ret = ustcomm_send_app_msg(sock, &lum); if (ret) { return ret; } /* send var len bytecode */ ret = ustcomm_send_unix_sock(sock, exclusion->names, exclusion->count * LTTNG_UST_SYM_NAME_LEN); if (ret < 0) { return ret; } if (ret != exclusion->count * LTTNG_UST_SYM_NAME_LEN) { return -EINVAL; } return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd); } /* Enable event, channel and session ioctl */ int ustctl_enable(int sock, struct lttng_ust_object_data *object) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!object) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = object->handle; lum.cmd = LTTNG_UST_ENABLE; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; DBG("enabled handle %u", object->handle); return 0; } /* Disable event, channel and session ioctl */ int ustctl_disable(int sock, struct lttng_ust_object_data *object) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!object) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = object->handle; lum.cmd = LTTNG_UST_DISABLE; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; DBG("disable handle %u", object->handle); return 0; } int ustctl_start_session(int sock, int handle) { struct lttng_ust_object_data obj; obj.handle = handle; return ustctl_enable(sock, &obj); } int ustctl_stop_session(int sock, int handle) { struct lttng_ust_object_data obj; obj.handle = handle; return ustctl_disable(sock, &obj); } int ustctl_tracepoint_list(int sock) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret, tp_list_handle; memset(&lum, 0, sizeof(lum)); lum.handle = LTTNG_UST_ROOT_HANDLE; lum.cmd = LTTNG_UST_TRACEPOINT_LIST; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; tp_list_handle = lur.ret_val; DBG("received tracepoint list handle %u", tp_list_handle); return tp_list_handle; } int ustctl_tracepoint_list_get(int sock, int tp_list_handle, struct lttng_ust_tracepoint_iter *iter) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!iter) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = tp_list_handle; lum.cmd = LTTNG_UST_TRACEPOINT_LIST_GET; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; DBG("received tracepoint list entry name %s loglevel %d", lur.u.tracepoint.name, lur.u.tracepoint.loglevel); memcpy(iter, &lur.u.tracepoint, sizeof(*iter)); return 0; } int ustctl_tracepoint_field_list(int sock) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret, tp_field_list_handle; memset(&lum, 0, sizeof(lum)); lum.handle = LTTNG_UST_ROOT_HANDLE; lum.cmd = LTTNG_UST_TRACEPOINT_FIELD_LIST; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; tp_field_list_handle = lur.ret_val; DBG("received tracepoint field list handle %u", tp_field_list_handle); return tp_field_list_handle; } int ustctl_tracepoint_field_list_get(int sock, int tp_field_list_handle, struct lttng_ust_field_iter *iter) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; ssize_t len; if (!iter) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = tp_field_list_handle; lum.cmd = LTTNG_UST_TRACEPOINT_FIELD_LIST_GET; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; len = ustcomm_recv_unix_sock(sock, iter, sizeof(*iter)); if (len != sizeof(*iter)) { return -EINVAL; } DBG("received tracepoint field list entry event_name %s event_loglevel %d field_name %s field_type %d", iter->event_name, iter->loglevel, iter->field_name, iter->type); return 0; } int ustctl_tracer_version(int sock, struct lttng_ust_tracer_version *v) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!v) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = LTTNG_UST_ROOT_HANDLE; lum.cmd = LTTNG_UST_TRACER_VERSION; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; memcpy(v, &lur.u.version, sizeof(*v)); DBG("received tracer version"); return 0; } int ustctl_wait_quiescent(int sock) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; memset(&lum, 0, sizeof(lum)); lum.handle = LTTNG_UST_ROOT_HANDLE; lum.cmd = LTTNG_UST_WAIT_QUIESCENT; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; DBG("waited for quiescent state"); return 0; } int ustctl_calibrate(int sock, struct lttng_ust_calibrate *calibrate) { if (!calibrate) return -EINVAL; return -ENOSYS; } int ustctl_sock_flush_buffer(int sock, struct lttng_ust_object_data *object) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!object) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = object->handle; lum.cmd = LTTNG_UST_FLUSH_BUFFER; ret = ustcomm_send_app_cmd(sock, &lum, &lur); if (ret) return ret; DBG("flushed buffer handle %u", object->handle); return 0; } static int ustctl_send_channel(int sock, enum lttng_ust_chan_type type, void *data, uint64_t size, int wakeup_fd, int send_fd_only) { ssize_t len; if (!send_fd_only) { /* Send mmap size */ len = ustcomm_send_unix_sock(sock, &size, sizeof(size)); if (len != sizeof(size)) { if (len < 0) return len; else return -EIO; } /* Send channel type */ len = ustcomm_send_unix_sock(sock, &type, sizeof(type)); if (len != sizeof(type)) { if (len < 0) return len; else return -EIO; } } /* Send channel data */ len = ustcomm_send_unix_sock(sock, data, size); if (len != size) { if (len < 0) return len; else return -EIO; } /* Send wakeup fd */ len = ustcomm_send_fds_unix_sock(sock, &wakeup_fd, 1); if (len <= 0) { if (len < 0) return len; else return -EIO; } return 0; } static int ustctl_send_stream(int sock, uint32_t stream_nr, uint64_t memory_map_size, int shm_fd, int wakeup_fd, int send_fd_only) { ssize_t len; int fds[2]; if (!send_fd_only) { if (shm_fd < 0) { /* finish iteration */ uint64_t v = -1; len = ustcomm_send_unix_sock(sock, &v, sizeof(v)); if (len != sizeof(v)) { if (len < 0) return len; else return -EIO; } return 0; } /* Send mmap size */ len = ustcomm_send_unix_sock(sock, &memory_map_size, sizeof(memory_map_size)); if (len != sizeof(memory_map_size)) { if (len < 0) return len; else return -EIO; } /* Send stream nr */ len = ustcomm_send_unix_sock(sock, &stream_nr, sizeof(stream_nr)); if (len != sizeof(stream_nr)) { if (len < 0) return len; else return -EIO; } } /* Send shm fd and wakeup fd */ fds[0] = shm_fd; fds[1] = wakeup_fd; len = ustcomm_send_fds_unix_sock(sock, fds, 2); if (len <= 0) { if (len < 0) return len; else return -EIO; } return 0; } int ustctl_recv_channel_from_consumer(int sock, struct lttng_ust_object_data **_channel_data) { struct lttng_ust_object_data *channel_data; ssize_t len; int wakeup_fd; int ret; channel_data = zmalloc(sizeof(*channel_data)); if (!channel_data) { ret = -ENOMEM; goto error_alloc; } channel_data->type = LTTNG_UST_OBJECT_TYPE_CHANNEL; channel_data->handle = -1; /* recv mmap size */ len = ustcomm_recv_unix_sock(sock, &channel_data->size, sizeof(channel_data->size)); if (len != sizeof(channel_data->size)) { if (len < 0) ret = len; else ret = -EINVAL; goto error; } /* recv channel type */ len = ustcomm_recv_unix_sock(sock, &channel_data->u.channel.type, sizeof(channel_data->u.channel.type)); if (len != sizeof(channel_data->u.channel.type)) { if (len < 0) ret = len; else ret = -EINVAL; goto error; } /* recv channel data */ channel_data->u.channel.data = zmalloc(channel_data->size); if (!channel_data->u.channel.data) { ret = -ENOMEM; goto error; } len = ustcomm_recv_unix_sock(sock, channel_data->u.channel.data, channel_data->size); if (len != channel_data->size) { if (len < 0) ret = len; else ret = -EINVAL; goto error_recv_data; } /* recv wakeup fd */ len = ustcomm_recv_fds_unix_sock(sock, &wakeup_fd, 1); if (len <= 0) { if (len < 0) { ret = len; goto error_recv_data; } else { ret = -EIO; goto error_recv_data; } } channel_data->u.channel.wakeup_fd = wakeup_fd; *_channel_data = channel_data; return 0; error_recv_data: free(channel_data->u.channel.data); error: free(channel_data); error_alloc: return ret; } int ustctl_recv_stream_from_consumer(int sock, struct lttng_ust_object_data **_stream_data) { struct lttng_ust_object_data *stream_data; ssize_t len; int ret; int fds[2]; stream_data = zmalloc(sizeof(*stream_data)); if (!stream_data) { ret = -ENOMEM; goto error_alloc; } stream_data->type = LTTNG_UST_OBJECT_TYPE_STREAM; stream_data->handle = -1; /* recv mmap size */ len = ustcomm_recv_unix_sock(sock, &stream_data->size, sizeof(stream_data->size)); if (len != sizeof(stream_data->size)) { if (len < 0) ret = len; else ret = -EINVAL; goto error; } if (stream_data->size == -1) { ret = -LTTNG_UST_ERR_NOENT; goto error; } /* recv stream nr */ len = ustcomm_recv_unix_sock(sock, &stream_data->u.stream.stream_nr, sizeof(stream_data->u.stream.stream_nr)); if (len != sizeof(stream_data->u.stream.stream_nr)) { if (len < 0) ret = len; else ret = -EINVAL; goto error; } /* recv shm fd and wakeup fd */ len = ustcomm_recv_fds_unix_sock(sock, fds, 2); if (len <= 0) { if (len < 0) { ret = len; goto error; } else { ret = -EIO; goto error; } } stream_data->u.stream.shm_fd = fds[0]; stream_data->u.stream.wakeup_fd = fds[1]; *_stream_data = stream_data; return 0; error: free(stream_data); error_alloc: return ret; } int ustctl_send_channel_to_ust(int sock, int session_handle, struct lttng_ust_object_data *channel_data) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; if (!channel_data) return -EINVAL; memset(&lum, 0, sizeof(lum)); lum.handle = session_handle; lum.cmd = LTTNG_UST_CHANNEL; lum.u.channel.len = channel_data->size; lum.u.channel.type = channel_data->u.channel.type; ret = ustcomm_send_app_msg(sock, &lum); if (ret) return ret; ret = ustctl_send_channel(sock, channel_data->u.channel.type, channel_data->u.channel.data, channel_data->size, channel_data->u.channel.wakeup_fd, 1); if (ret) return ret; ret = ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd); if (!ret) { channel_data->handle = lur.ret_val; } return ret; } int ustctl_send_stream_to_ust(int sock, struct lttng_ust_object_data *channel_data, struct lttng_ust_object_data *stream_data) { struct ustcomm_ust_msg lum; struct ustcomm_ust_reply lur; int ret; memset(&lum, 0, sizeof(lum)); lum.handle = channel_data->handle; lum.cmd = LTTNG_UST_STREAM; lum.u.stream.len = stream_data->size; lum.u.stream.stream_nr = stream_data->u.stream.stream_nr; ret = ustcomm_send_app_msg(sock, &lum); if (ret) return ret; assert(stream_data); assert(stream_data->type == LTTNG_UST_OBJECT_TYPE_STREAM); ret = ustctl_send_stream(sock, stream_data->u.stream.stream_nr, stream_data->size, stream_data->u.stream.shm_fd, stream_data->u.stream.wakeup_fd, 1); if (ret) return ret; return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd); } int ustctl_duplicate_ust_object_data(struct lttng_ust_object_data **dest, struct lttng_ust_object_data *src) { struct lttng_ust_object_data *obj; int ret; if (src->handle != -1) { ret = -EINVAL; goto error; } obj = zmalloc(sizeof(*obj)); if (!obj) { ret = -ENOMEM; goto error; } obj->type = src->type; obj->handle = src->handle; obj->size = src->size; switch (obj->type) { case LTTNG_UST_OBJECT_TYPE_CHANNEL: { obj->u.channel.type = src->u.channel.type; if (src->u.channel.wakeup_fd >= 0) { obj->u.channel.wakeup_fd = dup(src->u.channel.wakeup_fd); if (obj->u.channel.wakeup_fd < 0) { ret = errno; goto chan_error_wakeup_fd; } } else { obj->u.channel.wakeup_fd = src->u.channel.wakeup_fd; } obj->u.channel.data = zmalloc(obj->size); if (!obj->u.channel.data) { ret = -ENOMEM; goto chan_error_alloc; } memcpy(obj->u.channel.data, src->u.channel.data, obj->size); break; chan_error_alloc: if (src->u.channel.wakeup_fd >= 0) { int closeret; closeret = close(obj->u.channel.wakeup_fd); if (closeret) { PERROR("close"); } } chan_error_wakeup_fd: goto error_type; } case LTTNG_UST_OBJECT_TYPE_STREAM: { obj->u.stream.stream_nr = src->u.stream.stream_nr; if (src->u.stream.wakeup_fd >= 0) { obj->u.stream.wakeup_fd = dup(src->u.stream.wakeup_fd); if (obj->u.stream.wakeup_fd < 0) { ret = errno; goto stream_error_wakeup_fd; } } else { obj->u.stream.wakeup_fd = src->u.stream.wakeup_fd; } if (src->u.stream.shm_fd >= 0) { obj->u.stream.shm_fd = dup(src->u.stream.shm_fd); if (obj->u.stream.shm_fd < 0) { ret = errno; goto stream_error_shm_fd; } } else { obj->u.stream.shm_fd = src->u.stream.shm_fd; } break; stream_error_shm_fd: if (src->u.stream.wakeup_fd >= 0) { int closeret; closeret = close(obj->u.stream.wakeup_fd); if (closeret) { PERROR("close"); } } stream_error_wakeup_fd: goto error_type; } default: ret = -EINVAL; goto error_type; } *dest = obj; return 0; error_type: free(obj); error: return ret; } /* Buffer operations */ struct ustctl_consumer_channel * ustctl_create_channel(struct ustctl_consumer_channel_attr *attr) { struct ustctl_consumer_channel *chan; const char *transport_name; struct lttng_transport *transport; switch (attr->type) { case LTTNG_UST_CHAN_PER_CPU: if (attr->output == LTTNG_UST_MMAP) { if (attr->overwrite) { if (attr->read_timer_interval == 0) { transport_name = "relay-overwrite-mmap"; } else { transport_name = "relay-overwrite-rt-mmap"; } } else { if (attr->read_timer_interval == 0) { transport_name = "relay-discard-mmap"; } else { transport_name = "relay-discard-rt-mmap"; } } } else { return NULL; } break; case LTTNG_UST_CHAN_METADATA: if (attr->output == LTTNG_UST_MMAP) transport_name = "relay-metadata-mmap"; else return NULL; break; default: transport_name = ""; return NULL; } transport = lttng_transport_find(transport_name); if (!transport) { DBG("LTTng transport %s not found\n", transport_name); return NULL; } chan = zmalloc(sizeof(*chan)); if (!chan) return NULL; chan->chan = transport->ops.channel_create(transport_name, NULL, attr->subbuf_size, attr->num_subbuf, attr->switch_timer_interval, attr->read_timer_interval, attr->uuid, attr->chan_id); if (!chan->chan) { goto chan_error; } chan->chan->ops = &transport->ops; memcpy(&chan->attr, attr, sizeof(chan->attr)); chan->wait_fd = ustctl_channel_get_wait_fd(chan); chan->wakeup_fd = ustctl_channel_get_wakeup_fd(chan); return chan; chan_error: free(chan); return NULL; } void ustctl_destroy_channel(struct ustctl_consumer_channel *chan) { (void) ustctl_channel_close_wait_fd(chan); (void) ustctl_channel_close_wakeup_fd(chan); chan->chan->ops->channel_destroy(chan->chan); free(chan); } int ustctl_send_channel_to_sessiond(int sock, struct ustctl_consumer_channel *channel) { struct shm_object_table *table; table = channel->chan->handle->table; if (table->size <= 0) return -EINVAL; return ustctl_send_channel(sock, channel->attr.type, table->objects[0].memory_map, table->objects[0].memory_map_size, channel->wakeup_fd, 0); } int ustctl_send_stream_to_sessiond(int sock, struct ustctl_consumer_stream *stream) { if (!stream) return ustctl_send_stream(sock, -1U, -1U, -1, -1, 0); return ustctl_send_stream(sock, stream->cpu, stream->memory_map_size, stream->shm_fd, stream->wakeup_fd, 0); } int ustctl_write_metadata_to_channel( struct ustctl_consumer_channel *channel, const char *metadata_str, /* NOT null-terminated */ size_t len) /* metadata length */ { struct lttng_ust_lib_ring_buffer_ctx ctx; struct lttng_channel *chan = channel->chan; const char *str = metadata_str; int ret = 0, waitret; size_t reserve_len, pos; for (pos = 0; pos < len; pos += reserve_len) { reserve_len = min_t(size_t, chan->ops->packet_avail_size(chan->chan, chan->handle), len - pos); lib_ring_buffer_ctx_init(&ctx, chan->chan, NULL, reserve_len, sizeof(char), -1, chan->handle); /* * We don't care about metadata buffer's records lost * count, because we always retry here. Report error if * we need to bail out after timeout or being * interrupted. */ waitret = wait_cond_interruptible_timeout( ({ ret = chan->ops->event_reserve(&ctx, 0); ret != -ENOBUFS || !ret; }), LTTNG_METADATA_TIMEOUT_MSEC); if (waitret == -ETIMEDOUT || waitret == -EINTR || ret) { DBG("LTTng: Failure to write metadata to buffers (%s)\n", waitret == -EINTR ? "interrupted" : (ret == -ENOBUFS ? "timeout" : "I/O error")); if (waitret == -EINTR) ret = waitret; goto end; } chan->ops->event_write(&ctx, &str[pos], reserve_len); chan->ops->event_commit(&ctx); } end: return ret; } /* * Write at most one packet in the channel. * Returns the number of bytes written on success, < 0 on error. */ ssize_t ustctl_write_one_packet_to_channel( struct ustctl_consumer_channel *channel, const char *metadata_str, /* NOT null-terminated */ size_t len) /* metadata length */ { struct lttng_ust_lib_ring_buffer_ctx ctx; struct lttng_channel *chan = channel->chan; const char *str = metadata_str; ssize_t reserve_len; int ret; reserve_len = min_t(ssize_t, chan->ops->packet_avail_size(chan->chan, chan->handle), len); lib_ring_buffer_ctx_init(&ctx, chan->chan, NULL, reserve_len, sizeof(char), -1, chan->handle); ret = chan->ops->event_reserve(&ctx, 0); if (ret != 0) { DBG("LTTng: event reservation failed"); assert(ret < 0); reserve_len = ret; goto end; } chan->ops->event_write(&ctx, str, reserve_len); chan->ops->event_commit(&ctx); end: return reserve_len; } int ustctl_channel_close_wait_fd(struct ustctl_consumer_channel *consumer_chan) { struct channel *chan; int ret; chan = consumer_chan->chan->chan; ret = ring_buffer_channel_close_wait_fd(&chan->backend.config, chan, chan->handle); if (!ret) consumer_chan->wait_fd = -1; return ret; } int ustctl_channel_close_wakeup_fd(struct ustctl_consumer_channel *consumer_chan) { struct channel *chan; int ret; chan = consumer_chan->chan->chan; ret = ring_buffer_channel_close_wakeup_fd(&chan->backend.config, chan, chan->handle); if (!ret) consumer_chan->wakeup_fd = -1; return ret; } int ustctl_stream_close_wait_fd(struct ustctl_consumer_stream *stream) { struct channel *chan; chan = stream->chan->chan->chan; return ring_buffer_stream_close_wait_fd(&chan->backend.config, chan, stream->handle, stream->cpu); } int ustctl_stream_close_wakeup_fd(struct ustctl_consumer_stream *stream) { struct channel *chan; chan = stream->chan->chan->chan; return ring_buffer_stream_close_wakeup_fd(&chan->backend.config, chan, stream->handle, stream->cpu); } struct ustctl_consumer_stream * ustctl_create_stream(struct ustctl_consumer_channel *channel, int cpu) { struct ustctl_consumer_stream *stream; struct lttng_ust_shm_handle *handle; struct channel *chan; int shm_fd, wait_fd, wakeup_fd; uint64_t memory_map_size; struct lttng_ust_lib_ring_buffer *buf; int ret; if (!channel) return NULL; handle = channel->chan->handle; if (!handle) return NULL; chan = channel->chan->chan; buf = channel_get_ring_buffer(&chan->backend.config, chan, cpu, handle, &shm_fd, &wait_fd, &wakeup_fd, &memory_map_size); if (!buf) return NULL; ret = lib_ring_buffer_open_read(buf, handle); if (ret) return NULL; stream = zmalloc(sizeof(*stream)); if (!stream) goto alloc_error; stream->handle = handle; stream->buf = buf; stream->chan = channel; stream->shm_fd = shm_fd; stream->wait_fd = wait_fd; stream->wakeup_fd = wakeup_fd; stream->memory_map_size = memory_map_size; stream->cpu = cpu; return stream; alloc_error: return NULL; } void ustctl_destroy_stream(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; assert(stream); buf = stream->buf; consumer_chan = stream->chan; (void) ustctl_stream_close_wait_fd(stream); (void) ustctl_stream_close_wakeup_fd(stream); lib_ring_buffer_release_read(buf, consumer_chan->chan->handle); free(stream); } int ustctl_channel_get_wait_fd(struct ustctl_consumer_channel *chan) { if (!chan) return -EINVAL; return shm_get_wait_fd(chan->chan->handle, &chan->chan->handle->chan._ref); } int ustctl_channel_get_wakeup_fd(struct ustctl_consumer_channel *chan) { if (!chan) return -EINVAL; return shm_get_wakeup_fd(chan->chan->handle, &chan->chan->handle->chan._ref); } int ustctl_stream_get_wait_fd(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; return shm_get_wait_fd(consumer_chan->chan->handle, &buf->self._ref); } int ustctl_stream_get_wakeup_fd(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; return shm_get_wakeup_fd(consumer_chan->chan->handle, &buf->self._ref); } /* For mmap mode, readable without "get" operation */ void *ustctl_get_mmap_base(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return NULL; buf = stream->buf; consumer_chan = stream->chan; return shmp(consumer_chan->chan->handle, buf->backend.memory_map); } /* returns the length to mmap. */ int ustctl_get_mmap_len(struct ustctl_consumer_stream *stream, unsigned long *len) { struct ustctl_consumer_channel *consumer_chan; unsigned long mmap_buf_len; struct channel *chan; if (!stream) return -EINVAL; consumer_chan = stream->chan; chan = consumer_chan->chan->chan; if (chan->backend.config.output != RING_BUFFER_MMAP) return -EINVAL; mmap_buf_len = chan->backend.buf_size; if (chan->backend.extra_reader_sb) mmap_buf_len += chan->backend.subbuf_size; if (mmap_buf_len > INT_MAX) return -EFBIG; *len = mmap_buf_len; return 0; } /* returns the maximum size for sub-buffers. */ int ustctl_get_max_subbuf_size(struct ustctl_consumer_stream *stream, unsigned long *len) { struct ustctl_consumer_channel *consumer_chan; struct channel *chan; if (!stream) return -EINVAL; consumer_chan = stream->chan; chan = consumer_chan->chan->chan; *len = chan->backend.subbuf_size; return 0; } /* * For mmap mode, operate on the current packet (between get/put or * get_next/put_next). */ /* returns the offset of the subbuffer belonging to the mmap reader. */ int ustctl_get_mmap_read_offset(struct ustctl_consumer_stream *stream, unsigned long *off) { struct channel *chan; unsigned long sb_bindex; struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; chan = consumer_chan->chan->chan; if (chan->backend.config.output != RING_BUFFER_MMAP) return -EINVAL; sb_bindex = subbuffer_id_get_index(&chan->backend.config, buf->backend.buf_rsb.id); *off = shmp(consumer_chan->chan->handle, shmp_index(consumer_chan->chan->handle, buf->backend.array, sb_bindex)->shmp)->mmap_offset; return 0; } /* returns the size of the current sub-buffer, without padding (for mmap). */ int ustctl_get_subbuf_size(struct ustctl_consumer_stream *stream, unsigned long *len) { struct ustctl_consumer_channel *consumer_chan; struct channel *chan; struct lttng_ust_lib_ring_buffer *buf; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; chan = consumer_chan->chan->chan; *len = lib_ring_buffer_get_read_data_size(&chan->backend.config, buf, consumer_chan->chan->handle); return 0; } /* returns the size of the current sub-buffer, without padding (for mmap). */ int ustctl_get_padded_subbuf_size(struct ustctl_consumer_stream *stream, unsigned long *len) { struct ustctl_consumer_channel *consumer_chan; struct channel *chan; struct lttng_ust_lib_ring_buffer *buf; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; chan = consumer_chan->chan->chan; *len = lib_ring_buffer_get_read_data_size(&chan->backend.config, buf, consumer_chan->chan->handle); *len = PAGE_ALIGN(*len); return 0; } /* Get exclusive read access to the next sub-buffer that can be read. */ int ustctl_get_next_subbuf(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; return lib_ring_buffer_get_next_subbuf(buf, consumer_chan->chan->handle); } /* Release exclusive sub-buffer access, move consumer forward. */ int ustctl_put_next_subbuf(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; lib_ring_buffer_put_next_subbuf(buf, consumer_chan->chan->handle); return 0; } /* snapshot */ /* Get a snapshot of the current ring buffer producer and consumer positions */ int ustctl_snapshot(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; return lib_ring_buffer_snapshot(buf, &buf->cons_snapshot, &buf->prod_snapshot, consumer_chan->chan->handle); } /* Get the consumer position (iteration start) */ int ustctl_snapshot_get_consumed(struct ustctl_consumer_stream *stream, unsigned long *pos) { struct lttng_ust_lib_ring_buffer *buf; if (!stream) return -EINVAL; buf = stream->buf; *pos = buf->cons_snapshot; return 0; } /* Get the producer position (iteration end) */ int ustctl_snapshot_get_produced(struct ustctl_consumer_stream *stream, unsigned long *pos) { struct lttng_ust_lib_ring_buffer *buf; if (!stream) return -EINVAL; buf = stream->buf; *pos = buf->prod_snapshot; return 0; } /* Get exclusive read access to the specified sub-buffer position */ int ustctl_get_subbuf(struct ustctl_consumer_stream *stream, unsigned long *pos) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; return lib_ring_buffer_get_subbuf(buf, *pos, consumer_chan->chan->handle); } /* Release exclusive sub-buffer access */ int ustctl_put_subbuf(struct ustctl_consumer_stream *stream) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; if (!stream) return -EINVAL; buf = stream->buf; consumer_chan = stream->chan; lib_ring_buffer_put_subbuf(buf, consumer_chan->chan->handle); return 0; } void ustctl_flush_buffer(struct ustctl_consumer_stream *stream, int producer_active) { struct lttng_ust_lib_ring_buffer *buf; struct ustctl_consumer_channel *consumer_chan; assert(stream); buf = stream->buf; consumer_chan = stream->chan; lib_ring_buffer_switch_slow(buf, producer_active ? SWITCH_ACTIVE : SWITCH_FLUSH, consumer_chan->chan->handle); } static struct lttng_ust_client_lib_ring_buffer_client_cb *get_client_cb( struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { struct channel *chan; const struct lttng_ust_lib_ring_buffer_config *config; struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; chan = shmp(handle, buf->backend.chan); config = &chan->backend.config; if (!config->cb_ptr) return NULL; client_cb = caa_container_of(config->cb_ptr, struct lttng_ust_client_lib_ring_buffer_client_cb, parent); return client_cb; } int ustctl_get_timestamp_begin(struct ustctl_consumer_stream *stream, uint64_t *timestamp_begin) { struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; struct lttng_ust_lib_ring_buffer *buf; struct lttng_ust_shm_handle *handle; if (!stream || !timestamp_begin) return -EINVAL; buf = stream->buf; handle = stream->chan->chan->handle; client_cb = get_client_cb(buf, handle); if (!client_cb) return -ENOSYS; return client_cb->timestamp_begin(buf, handle, timestamp_begin); } int ustctl_get_timestamp_end(struct ustctl_consumer_stream *stream, uint64_t *timestamp_end) { struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; struct lttng_ust_lib_ring_buffer *buf; struct lttng_ust_shm_handle *handle; if (!stream || !timestamp_end) return -EINVAL; buf = stream->buf; handle = stream->chan->chan->handle; client_cb = get_client_cb(buf, handle); if (!client_cb) return -ENOSYS; return client_cb->timestamp_end(buf, handle, timestamp_end); } int ustctl_get_events_discarded(struct ustctl_consumer_stream *stream, uint64_t *events_discarded) { struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; struct lttng_ust_lib_ring_buffer *buf; struct lttng_ust_shm_handle *handle; if (!stream || !events_discarded) return -EINVAL; buf = stream->buf; handle = stream->chan->chan->handle; client_cb = get_client_cb(buf, handle); if (!client_cb) return -ENOSYS; return client_cb->events_discarded(buf, handle, events_discarded); } int ustctl_get_content_size(struct ustctl_consumer_stream *stream, uint64_t *content_size) { struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; struct lttng_ust_lib_ring_buffer *buf; struct lttng_ust_shm_handle *handle; if (!stream || !content_size) return -EINVAL; buf = stream->buf; handle = stream->chan->chan->handle; client_cb = get_client_cb(buf, handle); if (!client_cb) return -ENOSYS; return client_cb->content_size(buf, handle, content_size); } int ustctl_get_packet_size(struct ustctl_consumer_stream *stream, uint64_t *packet_size) { struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; struct lttng_ust_lib_ring_buffer *buf; struct lttng_ust_shm_handle *handle; if (!stream || !packet_size) return -EINVAL; buf = stream->buf; handle = stream->chan->chan->handle; client_cb = get_client_cb(buf, handle); if (!client_cb) return -ENOSYS; return client_cb->packet_size(buf, handle, packet_size); } int ustctl_get_stream_id(struct ustctl_consumer_stream *stream, uint64_t *stream_id) { struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; struct lttng_ust_lib_ring_buffer *buf; struct lttng_ust_shm_handle *handle; if (!stream || !stream_id) return -EINVAL; buf = stream->buf; handle = stream->chan->chan->handle; client_cb = get_client_cb(buf, handle); if (!client_cb) return -ENOSYS; return client_cb->stream_id(buf, handle, stream_id); } int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream, uint64_t *ts) { struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb; struct lttng_ust_lib_ring_buffer *buf; struct lttng_ust_shm_handle *handle; if (!stream || !ts) return -EINVAL; buf = stream->buf; handle = stream->chan->chan->handle; client_cb = get_client_cb(buf, handle); if (!client_cb || !client_cb->current_timestamp) return -ENOSYS; return client_cb->current_timestamp(buf, handle, ts); } /* * Returns 0 on success, negative error value on error. */ int ustctl_recv_reg_msg(int sock, enum ustctl_socket_type *type, uint32_t *major, uint32_t *minor, uint32_t *pid, uint32_t *ppid, uint32_t *uid, uint32_t *gid, uint32_t *bits_per_long, uint32_t *uint8_t_alignment, uint32_t *uint16_t_alignment, uint32_t *uint32_t_alignment, uint32_t *uint64_t_alignment, uint32_t *long_alignment, int *byte_order, char *name) { ssize_t len; struct ustctl_reg_msg reg_msg; len = ustcomm_recv_unix_sock(sock, ®_msg, sizeof(reg_msg)); if (len > 0 && len != sizeof(reg_msg)) return -EIO; if (len == 0) return -EPIPE; if (len < 0) return len; if (reg_msg.magic == LTTNG_UST_COMM_MAGIC) { *byte_order = BYTE_ORDER == BIG_ENDIAN ? BIG_ENDIAN : LITTLE_ENDIAN; } else if (reg_msg.magic == bswap_32(LTTNG_UST_COMM_MAGIC)) { *byte_order = BYTE_ORDER == BIG_ENDIAN ? LITTLE_ENDIAN : BIG_ENDIAN; } else { return -LTTNG_UST_ERR_INVAL_MAGIC; } switch (reg_msg.socket_type) { case 0: *type = USTCTL_SOCKET_CMD; break; case 1: *type = USTCTL_SOCKET_NOTIFY; break; default: return -LTTNG_UST_ERR_INVAL_SOCKET_TYPE; } *major = reg_msg.major; *minor = reg_msg.minor; *pid = reg_msg.pid; *ppid = reg_msg.ppid; *uid = reg_msg.uid; *gid = reg_msg.gid; *bits_per_long = reg_msg.bits_per_long; *uint8_t_alignment = reg_msg.uint8_t_alignment; *uint16_t_alignment = reg_msg.uint16_t_alignment; *uint32_t_alignment = reg_msg.uint32_t_alignment; *uint64_t_alignment = reg_msg.uint64_t_alignment; *long_alignment = reg_msg.long_alignment; memcpy(name, reg_msg.name, LTTNG_UST_ABI_PROCNAME_LEN); if (reg_msg.major != LTTNG_UST_ABI_MAJOR_VERSION) { return -LTTNG_UST_ERR_UNSUP_MAJOR; } return 0; } int ustctl_recv_notify(int sock, enum ustctl_notify_cmd *notify_cmd) { struct ustcomm_notify_hdr header; ssize_t len; len = ustcomm_recv_unix_sock(sock, &header, sizeof(header)); if (len > 0 && len != sizeof(header)) return -EIO; if (len == 0) return -EPIPE; if (len < 0) return len; switch (header.notify_cmd) { case 0: *notify_cmd = USTCTL_NOTIFY_CMD_EVENT; break; case 1: *notify_cmd = USTCTL_NOTIFY_CMD_CHANNEL; break; default: return -EINVAL; } return 0; } /* * Returns 0 on success, negative error value on error. */ int ustctl_recv_register_event(int sock, int *session_objd, int *channel_objd, char *event_name, int *loglevel, char **signature, size_t *nr_fields, struct ustctl_field **fields, char **model_emf_uri) { ssize_t len; struct ustcomm_notify_event_msg msg; size_t signature_len, fields_len, model_emf_uri_len; char *a_sign = NULL, *a_model_emf_uri = NULL; struct ustctl_field *a_fields = NULL; len = ustcomm_recv_unix_sock(sock, &msg, sizeof(msg)); if (len > 0 && len != sizeof(msg)) return -EIO; if (len == 0) return -EPIPE; if (len < 0) return len; *session_objd = msg.session_objd; *channel_objd = msg.channel_objd; strncpy(event_name, msg.event_name, LTTNG_UST_SYM_NAME_LEN); event_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; *loglevel = msg.loglevel; signature_len = msg.signature_len; fields_len = msg.fields_len; if (fields_len % sizeof(*a_fields) != 0) { return -EINVAL; } model_emf_uri_len = msg.model_emf_uri_len; /* recv signature. contains at least \0. */ a_sign = zmalloc(signature_len); if (!a_sign) return -ENOMEM; len = ustcomm_recv_unix_sock(sock, a_sign, signature_len); if (len > 0 && len != signature_len) { len = -EIO; goto signature_error; } if (len == 0) { len = -EPIPE; goto signature_error; } if (len < 0) { goto signature_error; } /* Enforce end of string */ a_sign[signature_len - 1] = '\0'; /* recv fields */ if (fields_len) { a_fields = zmalloc(fields_len); if (!a_fields) { len = -ENOMEM; goto signature_error; } len = ustcomm_recv_unix_sock(sock, a_fields, fields_len); if (len > 0 && len != fields_len) { len = -EIO; goto fields_error; } if (len == 0) { len = -EPIPE; goto fields_error; } if (len < 0) { goto fields_error; } } if (model_emf_uri_len) { /* recv model_emf_uri_len */ a_model_emf_uri = zmalloc(model_emf_uri_len); if (!a_model_emf_uri) { len = -ENOMEM; goto fields_error; } len = ustcomm_recv_unix_sock(sock, a_model_emf_uri, model_emf_uri_len); if (len > 0 && len != model_emf_uri_len) { len = -EIO; goto model_error; } if (len == 0) { len = -EPIPE; goto model_error; } if (len < 0) { goto model_error; } /* Enforce end of string */ a_model_emf_uri[model_emf_uri_len - 1] = '\0'; } *signature = a_sign; *nr_fields = fields_len / sizeof(*a_fields); *fields = a_fields; *model_emf_uri = a_model_emf_uri; return 0; model_error: free(a_model_emf_uri); fields_error: free(a_fields); signature_error: free(a_sign); return len; } /* * Returns 0 on success, negative error value on error. */ int ustctl_reply_register_event(int sock, uint32_t id, int ret_code) { ssize_t len; struct { struct ustcomm_notify_hdr header; struct ustcomm_notify_event_reply r; } reply; memset(&reply, 0, sizeof(reply)); reply.header.notify_cmd = USTCTL_NOTIFY_CMD_EVENT; reply.r.ret_code = ret_code; reply.r.event_id = id; len = ustcomm_send_unix_sock(sock, &reply, sizeof(reply)); if (len > 0 && len != sizeof(reply)) return -EIO; if (len < 0) return len; return 0; } /* * Returns 0 on success, negative UST or system error value on error. */ int ustctl_recv_register_channel(int sock, int *session_objd, /* session descriptor (output) */ int *channel_objd, /* channel descriptor (output) */ size_t *nr_fields, struct ustctl_field **fields) { ssize_t len; struct ustcomm_notify_channel_msg msg; size_t fields_len; struct ustctl_field *a_fields; len = ustcomm_recv_unix_sock(sock, &msg, sizeof(msg)); if (len > 0 && len != sizeof(msg)) return -EIO; if (len == 0) return -EPIPE; if (len < 0) return len; *session_objd = msg.session_objd; *channel_objd = msg.channel_objd; fields_len = msg.ctx_fields_len; if (fields_len % sizeof(*a_fields) != 0) { return -EINVAL; } /* recv fields */ if (fields_len) { a_fields = zmalloc(fields_len); if (!a_fields) { len = -ENOMEM; goto alloc_error; } len = ustcomm_recv_unix_sock(sock, a_fields, fields_len); if (len > 0 && len != fields_len) { len = -EIO; goto fields_error; } if (len == 0) { len = -EPIPE; goto fields_error; } if (len < 0) { goto fields_error; } *fields = a_fields; } else { *fields = NULL; } *nr_fields = fields_len / sizeof(*a_fields); return 0; fields_error: free(a_fields); alloc_error: return len; } /* * Returns 0 on success, negative error value on error. */ int ustctl_reply_register_channel(int sock, uint32_t chan_id, enum ustctl_channel_header header_type, int ret_code) { ssize_t len; struct { struct ustcomm_notify_hdr header; struct ustcomm_notify_channel_reply r; } reply; memset(&reply, 0, sizeof(reply)); reply.header.notify_cmd = USTCTL_NOTIFY_CMD_CHANNEL; reply.r.ret_code = ret_code; reply.r.chan_id = chan_id; switch (header_type) { case USTCTL_CHANNEL_HEADER_COMPACT: reply.r.header_type = 1; break; case USTCTL_CHANNEL_HEADER_LARGE: reply.r.header_type = 2; break; default: reply.r.header_type = 0; break; } len = ustcomm_send_unix_sock(sock, &reply, sizeof(reply)); if (len > 0 && len != sizeof(reply)) return -EIO; if (len < 0) return len; return 0; } static __attribute__((constructor)) void ustctl_init(void) { init_usterr(); lttng_ring_buffer_metadata_client_init(); lttng_ring_buffer_client_overwrite_init(); lttng_ring_buffer_client_overwrite_rt_init(); lttng_ring_buffer_client_discard_init(); lttng_ring_buffer_client_discard_rt_init(); lib_ringbuffer_signal_init(); } static __attribute__((destructor)) void ustctl_exit(void) { lttng_ring_buffer_client_discard_rt_exit(); lttng_ring_buffer_client_discard_exit(); lttng_ring_buffer_client_overwrite_rt_exit(); lttng_ring_buffer_client_overwrite_exit(); lttng_ring_buffer_metadata_client_exit(); } lttng-ust-2.4.0/liblttng-ust-ctl/ust-ctl-private.h0000644000175000017500000000300712275157353017035 00000000000000/* * Copyright (C) 2011 - Julien Desfossez * Copyright (C) 2011-2013 - Mathieu Desnoyers * * 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; version 2 of the License only. * * 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _LTTNG_UST_CTL_PRIVATE_H #define _LTTNG_UST_CTL_PRIVATE_H #include /* * Map channel lttng_ust_shm_handle and add streams. Typically performed * by the application to map the objects into its memory space. */ struct lttng_ust_shm_handle * ustctl_map_channel(struct lttng_ust_object_data *chan_data); int ustctl_add_stream(struct lttng_ust_shm_handle *lttng_ust_shm_handle, struct lttng_ust_object_data *stream_data); /* * Note: the lttng_ust_object_data from which the lttng_ust_shm_handle * is derived can only be released after unmapping the handle. */ void ustctl_unmap_channel(struct lttng_ust_shm_handle *lttng_ust_shm_handle); #endif /* _LTTNG_UST_CTL_PRIVATE_H */ lttng-ust-2.4.0/config/0000755000175000017500000000000012304153161011720 500000000000000lttng-ust-2.4.0/config/depcomp0000755000175000017500000004426711654550531013243 00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2009-04-28.21; # UTC # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 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 outputing dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac if test -z "$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" # 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. 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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: lttng-ust-2.4.0/config/ltmain.sh0000644000175000017500000105202211702102577013470 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. 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[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 # automake: $automake_version # autoconf: $autoconf_version # # Report bugs to . # GNU libtool home page: . # General help using GNU software: . PROGRAM=libtool PACKAGE=libtool VERSION="2.4.2 Debian-2.4.2-1" TIMESTAMP="" package_revision=1.3337 # Be Bourne compatible if test -n "${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. 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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. 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-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 | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \ | be32 | be64 \ | bfin \ | c4x | 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 \ | le32 | le64 \ | lm32 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ | maxq | mb | microblaze | 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 \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | moxie \ | mt \ | msp430 \ | nds32 | nds32le | nds32be \ | nios | nios2 \ | ns16k | ns32k \ | open8 \ | or32 \ | pdp10 | pdp11 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle \ | pyramid \ | 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 | 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-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | 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-* \ | le32-* | le64-* \ | lm32-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* | microblaze-* \ | 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-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nds32-* | nds32le-* | nds32be-* \ | nios-* | nios2-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | open8-* \ | 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 ;; mingw32) basic_machine=i386-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 ;; msdos) basic_machine=i386-pc os=-msdos ;; ms1-*) basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` ;; msys) basic_machine=i386-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) 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 $basic_machine | sed 's/^xscale/arm/'` ;; ymp) basic_machine=ymp-cray os=-unicos ;; z8k-*-coff) basic_machine=z8k-unknown os=-sim ;; z80-*-coff) basic_machine=z80-unknown os=-sim ;; none) basic_machine=none-none os=-none ;; # Here we handle the default manufacturer of certain CPU types. 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See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see . # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Per Bothner. Please send patches (context # diff format) to and include a ChangeLog # entry. # # This script attempts to guess a canonical system name similar to # config.sub. If it succeeds, it prints the system name on stdout, and # exits with 0. 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The system name ranges from "MiNT" over "FreeMiNT" # to the lowercase version "mint" (or "freemint"). Finally # the system name "TOS" denotes a system which is actually not # MiNT. 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) HP_ARCH=m68000 ;; 9000/[34]?? ) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` case "${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 ;; *:MINGW*:*) echo ${UNAME_MACHINE}-pc-mingw32 exit ;; i*: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${UNAME_MACHINE}-pc-mks exit ;; 8664:Windows_NT:*) echo x86_64-pc-mks exit ;; i*:Windows_NT*:* | Pentium*:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # It also conflicts with pre-2.0 versions of AT&T UWIN. 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EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; PCA57) UNAME_MACHINE=alphapca56 ;; EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi echo ${UNAME_MACHINE}-unknown-linux-gnu${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-gnu else if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_PCS_VFP then echo ${UNAME_MACHINE}-unknown-linux-gnueabi else echo ${UNAME_MACHINE}-unknown-linux-gnueabihf fi fi exit ;; avr32*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; cris:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-gnu exit ;; crisv32:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-gnu exit ;; frv:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; hexagon:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; i*86:Linux:*:*) LIBC=gnu eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #ifdef __dietlibc__ LIBC=dietlibc #endif EOF eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'` echo "${UNAME_MACHINE}-pc-linux-${LIBC}" exit ;; ia64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; m32r*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; m68*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu 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-gnu"; exit; } ;; or32:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; padre:Linux:*:*) echo sparc-unknown-linux-gnu exit ;; parisc64:Linux:*:* | hppa64:Linux:*:*) echo hppa64-unknown-linux-gnu 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-gnu ;; PA8*) echo hppa2.0-unknown-linux-gnu ;; *) echo hppa-unknown-linux-gnu ;; esac exit ;; ppc64:Linux:*:*) echo powerpc64-unknown-linux-gnu exit ;; ppc:Linux:*:*) echo powerpc-unknown-linux-gnu exit ;; s390:Linux:*:* | s390x:Linux:*:*) echo ${UNAME_MACHINE}-ibm-linux exit ;; sh64*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; sh*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; sparc:Linux:*:* | sparc64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; tile*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; vax:Linux:*:*) echo ${UNAME_MACHINE}-dec-linux-gnu exit ;; x86_64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu exit ;; xtensa*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-gnu 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 ;; 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 case $UNAME_PROCESSOR in i386) eval $set_cc_for_build if [ "$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 UNAME_PROCESSOR="x86_64" fi fi ;; unknown) UNAME_PROCESSOR=powerpc ;; esac 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 ${UNAME_MACHINE}-unknown-esx exit ;; esac #echo '(No uname command or uname output not recognized.)' 1>&2 #echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 eval $set_cc_for_build cat >$dummy.c < # include #endif main () { #if defined (sony) #if defined (MIPSEB) /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, I don't know.... */ printf ("mips-sony-bsd\n"); exit (0); #else #include printf ("m68k-sony-newsos%s\n", #ifdef NEWSOS4 "4" #else "" #endif ); exit (0); #endif #endif #if defined (__arm) && defined (__acorn) && defined (__unix) printf ("arm-acorn-riscix\n"); exit (0); #endif #if defined (hp300) && !defined (hpux) printf ("m68k-hp-bsd\n"); exit (0); #endif #if defined (NeXT) #if !defined (__ARCHITECTURE__) #define __ARCHITECTURE__ "m68k" #endif int version; version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; if (version < 4) printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); else printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); exit (0); #endif #if defined (MULTIMAX) || defined (n16) #if defined (UMAXV) printf ("ns32k-encore-sysv\n"); exit (0); #else #if defined (CMU) printf ("ns32k-encore-mach\n"); exit (0); #else printf ("ns32k-encore-bsd\n"); exit (0); #endif #endif #endif #if defined (__386BSD__) printf ("i386-pc-bsd\n"); exit (0); #endif #if defined (sequent) #if defined (i386) printf ("i386-sequent-dynix\n"); exit (0); #endif #if defined (ns32000) printf ("ns32k-sequent-dynix\n"); exit (0); #endif #endif #if defined (_SEQUENT_) struct utsname un; uname(&un); if (strncmp(un.version, "V2", 2) == 0) { printf ("i386-sequent-ptx2\n"); exit (0); } if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ printf ("i386-sequent-ptx1\n"); exit (0); } printf ("i386-sequent-ptx\n"); exit (0); #endif #if defined (vax) # if !defined (ultrix) # include # if defined (BSD) # if BSD == 43 printf ("vax-dec-bsd4.3\n"); exit (0); # else # if BSD == 199006 printf ("vax-dec-bsd4.3reno\n"); exit (0); # else printf ("vax-dec-bsd\n"); exit (0); # endif # endif # else printf ("vax-dec-bsd\n"); exit (0); # endif # else printf ("vax-dec-ultrix\n"); exit (0); # endif #endif #if defined (alliant) && defined (i860) printf ("i860-alliant-bsd\n"); exit (0); #endif exit (1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } # Apollos put the system type in the environment. test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; } # Convex versions that predate uname can use getsysinfo(1) if [ -x /usr/convex/getsysinfo ] then case `getsysinfo -f cpu_type` in c1*) echo c1-convex-bsd exit ;; c2*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; c34*) echo c34-convex-bsd exit ;; c38*) echo c38-convex-bsd exit ;; c4*) echo c4-convex-bsd exit ;; esac fi 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: lttng-ust-2.4.0/config/texinfo.tex0000644000175000017500000110035111654550531014050 00000000000000% texinfo.tex -- TeX macros to handle Texinfo files. % % Load plain if necessary, i.e., if running under initex. \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi % \def\texinfoversion{2009-08-14.15} % % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995, % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, % 2007, 2008, 2009 Free Software Foundation, Inc. % % This texinfo.tex 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 texinfo.tex file 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, when this file is read by TeX when processing % a Texinfo source document, you may use the result without % restriction. (This has been our intent since Texinfo was invented.) % % Please try the latest version of texinfo.tex before submitting bug % reports; you can get the latest version from: % http://www.gnu.org/software/texinfo/ (the Texinfo home page), or % ftp://tug.org/tex/texinfo.tex % (and all CTAN mirrors, see http://www.ctan.org). % The texinfo.tex in any given distribution could well be out % of date, so if that's what you're using, please check. % % Send bug reports to bug-texinfo@gnu.org. Please include including a % complete document in each bug report with which we can reproduce the % problem. Patches are, of course, greatly appreciated. % % To process a Texinfo manual with TeX, it's most reliable to use the % texi2dvi shell script that comes with the distribution. For a simple % manual foo.texi, however, you can get away with this: % tex foo.texi % texindex foo.?? % tex foo.texi % tex foo.texi % dvips foo.dvi -o # or whatever; this makes foo.ps. % The extra TeX runs get the cross-reference information correct. % Sometimes one run after texindex suffices, and sometimes you need more % than two; texi2dvi does it as many times as necessary. % % It is possible to adapt texinfo.tex for other languages, to some % extent. You can get the existing language-specific files from the % full Texinfo distribution. % % The GNU Texinfo home page is http://www.gnu.org/software/texinfo. \message{Loading texinfo [version \texinfoversion]:} % If in a .fmt file, print the version number % and turn on active characters that we couldn't do earlier because % they might have appeared in the input file name. \everyjob{\message{[Texinfo version \texinfoversion]}% \catcode`+=\active \catcode`\_=\active} \chardef\other=12 % We never want plain's \outer definition of \+ in Texinfo. % For @tex, we can use \tabalign. \let\+ = \relax % Save some plain tex macros whose names we will redefine. \let\ptexb=\b \let\ptexbullet=\bullet \let\ptexc=\c \let\ptexcomma=\, \let\ptexdot=\. \let\ptexdots=\dots \let\ptexend=\end \let\ptexequiv=\equiv \let\ptexexclam=\! \let\ptexfootnote=\footnote \let\ptexgtr=> \let\ptexhat=^ \let\ptexi=\i \let\ptexindent=\indent \let\ptexinsert=\insert \let\ptexlbrace=\{ \let\ptexless=< \let\ptexnewwrite\newwrite \let\ptexnoindent=\noindent \let\ptexplus=+ \let\ptexrbrace=\} \let\ptexslash=\/ \let\ptexstar=\* \let\ptext=\t \let\ptextop=\top {\catcode`\'=\active \global\let\ptexquoteright'}% Math-mode def from plain.tex. \let\ptexraggedright=\raggedright % If this character appears in an error message or help string, it % starts a new line in the output. \newlinechar = `^^J % Use TeX 3.0's \inputlineno to get the line number, for better error % messages, but if we're using an old version of TeX, don't do anything. % \ifx\inputlineno\thisisundefined \let\linenumber = \empty % Pre-3.0. \else \def\linenumber{l.\the\inputlineno:\space} \fi % Set up fixed words for English if not already set. \ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi \ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi \ifx\putwordfile\undefined \gdef\putwordfile{file}\fi \ifx\putwordin\undefined \gdef\putwordin{in}\fi \ifx\putwordIndexIsEmpty\undefined \gdef\putwordIndexIsEmpty{(Index is empty)}\fi \ifx\putwordIndexNonexistent\undefined \gdef\putwordIndexNonexistent{(Index is nonexistent)}\fi \ifx\putwordInfo\undefined \gdef\putwordInfo{Info}\fi \ifx\putwordInstanceVariableof\undefined \gdef\putwordInstanceVariableof{Instance Variable of}\fi \ifx\putwordMethodon\undefined \gdef\putwordMethodon{Method on}\fi \ifx\putwordNoTitle\undefined \gdef\putwordNoTitle{No Title}\fi \ifx\putwordof\undefined \gdef\putwordof{of}\fi \ifx\putwordon\undefined \gdef\putwordon{on}\fi \ifx\putwordpage\undefined \gdef\putwordpage{page}\fi \ifx\putwordsection\undefined \gdef\putwordsection{section}\fi \ifx\putwordSection\undefined \gdef\putwordSection{Section}\fi \ifx\putwordsee\undefined \gdef\putwordsee{see}\fi \ifx\putwordSee\undefined \gdef\putwordSee{See}\fi \ifx\putwordShortTOC\undefined \gdef\putwordShortTOC{Short Contents}\fi \ifx\putwordTOC\undefined \gdef\putwordTOC{Table of Contents}\fi % \ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi \ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi \ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi \ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi \ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi \ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi \ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi \ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi \ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi \ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi \ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi \ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi % \ifx\putwordDefmac\undefined \gdef\putwordDefmac{Macro}\fi \ifx\putwordDefspec\undefined \gdef\putwordDefspec{Special Form}\fi \ifx\putwordDefvar\undefined \gdef\putwordDefvar{Variable}\fi \ifx\putwordDefopt\undefined \gdef\putwordDefopt{User Option}\fi \ifx\putwordDeffunc\undefined \gdef\putwordDeffunc{Function}\fi % Since the category of space is not known, we have to be careful. \chardef\spacecat = 10 \def\spaceisspace{\catcode`\ =\spacecat} % sometimes characters are active, so we need control sequences. \chardef\colonChar = `\: \chardef\commaChar = `\, \chardef\dashChar = `\- \chardef\dotChar = `\. \chardef\exclamChar= `\! \chardef\lquoteChar= `\` \chardef\questChar = `\? \chardef\rquoteChar= `\' \chardef\semiChar = `\; \chardef\underChar = `\_ % Ignore a token. % \def\gobble#1{} % The following is used inside several \edef's. \def\makecsname#1{\expandafter\noexpand\csname#1\endcsname} % Hyphenation fixes. \hyphenation{ Flor-i-da Ghost-script Ghost-view Mac-OS Post-Script ap-pen-dix bit-map bit-maps data-base data-bases eshell fall-ing half-way long-est man-u-script man-u-scripts mini-buf-fer mini-buf-fers over-view par-a-digm par-a-digms rath-er rec-tan-gu-lar ro-bot-ics se-vere-ly set-up spa-ces spell-ing spell-ings stand-alone strong-est time-stamp time-stamps which-ever white-space wide-spread wrap-around } % Margin to add to right of even pages, to left of odd pages. \newdimen\bindingoffset \newdimen\normaloffset \newdimen\pagewidth \newdimen\pageheight % For a final copy, take out the rectangles % that mark overfull boxes (in case you have decided % that the text looks ok even though it passes the margin). % \def\finalout{\overfullrule=0pt} % @| inserts a changebar to the left of the current line. It should % surround any changed text. This approach does *not* work if the % change spans more than two lines of output. To handle that, we would % have adopt a much more difficult approach (putting marks into the main % vertical list for the beginning and end of each change). % \def\|{% % \vadjust can only be used in horizontal mode. \leavevmode % % Append this vertical mode material after the current line in the output. \vadjust{% % We want to insert a rule with the height and depth of the current % leading; that is exactly what \strutbox is supposed to record. \vskip-\baselineskip % % \vadjust-items are inserted at the left edge of the type. So % the \llap here moves out into the left-hand margin. \llap{% % % For a thicker or thinner bar, change the `1pt'. \vrule height\baselineskip width1pt % % This is the space between the bar and the text. \hskip 12pt }% }% } % Sometimes it is convenient to have everything in the transcript file % and nothing on the terminal. We don't just call \tracingall here, % since that produces some useless output on the terminal. We also make % some effort to order the tracing commands to reduce output in the log % file; cf. trace.sty in LaTeX. % \def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}% \def\loggingall{% \tracingstats2 \tracingpages1 \tracinglostchars2 % 2 gives us more in etex \tracingparagraphs1 \tracingoutput1 \tracingmacros2 \tracingrestores1 \showboxbreadth\maxdimen \showboxdepth\maxdimen \ifx\eTeXversion\undefined\else % etex gives us more logging \tracingscantokens1 \tracingifs1 \tracinggroups1 \tracingnesting2 \tracingassigns1 \fi \tracingcommands3 % 3 gives us more in etex \errorcontextlines16 }% % add check for \lastpenalty to plain's definitions. If the last thing % we did was a \nobreak, we don't want to insert more space. % \def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount \removelastskip\penalty-50\smallskip\fi\fi} \def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount \removelastskip\penalty-100\medskip\fi\fi} \def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount \removelastskip\penalty-200\bigskip\fi\fi} % For @cropmarks command. % Do @cropmarks to get crop marks. % \newif\ifcropmarks \let\cropmarks = \cropmarkstrue % % Dimensions to add cropmarks at corners. % Added by P. A. MacKay, 12 Nov. 1986 % \newdimen\outerhsize \newdimen\outervsize % set by the paper size routines \newdimen\cornerlong \cornerlong=1pc \newdimen\cornerthick \cornerthick=.3pt \newdimen\topandbottommargin \topandbottommargin=.75in % Output a mark which sets \thischapter, \thissection and \thiscolor. % We dump everything together because we only have one kind of mark. % This works because we only use \botmark / \topmark, not \firstmark. % % A mark contains a subexpression of the \ifcase ... \fi construct. % \get*marks macros below extract the needed part using \ifcase. % % Another complication is to let the user choose whether \thischapter % (\thissection) refers to the chapter (section) in effect at the top % of a page, or that at the bottom of a page. The solution is % described on page 260 of The TeXbook. It involves outputting two % marks for the sectioning macros, one before the section break, and % one after. I won't pretend I can describe this better than DEK... \def\domark{% \toks0=\expandafter{\lastchapterdefs}% \toks2=\expandafter{\lastsectiondefs}% \toks4=\expandafter{\prevchapterdefs}% \toks6=\expandafter{\prevsectiondefs}% \toks8=\expandafter{\lastcolordefs}% \mark{% \the\toks0 \the\toks2 \noexpand\or \the\toks4 \the\toks6 \noexpand\else \the\toks8 }% } % \topmark doesn't work for the very first chapter (after the title % page or the contents), so we use \firstmark there -- this gets us % the mark with the chapter defs, unless the user sneaks in, e.g., % @setcolor (or @url, or @link, etc.) between @contents and the very % first @chapter. \def\gettopheadingmarks{% \ifcase0\topmark\fi \ifx\thischapter\empty \ifcase0\firstmark\fi \fi } \def\getbottomheadingmarks{\ifcase1\botmark\fi} \def\getcolormarks{\ifcase2\topmark\fi} % Avoid "undefined control sequence" errors. \def\lastchapterdefs{} \def\lastsectiondefs{} \def\prevchapterdefs{} \def\prevsectiondefs{} \def\lastcolordefs{} % Main output routine. \chardef\PAGE = 255 \output = {\onepageout{\pagecontents\PAGE}} \newbox\headlinebox \newbox\footlinebox % \onepageout takes a vbox as an argument. Note that \pagecontents % does insertions, but you have to call it yourself. \def\onepageout#1{% \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi % \ifodd\pageno \advance\hoffset by \bindingoffset \else \advance\hoffset by -\bindingoffset\fi % % Do this outside of the \shipout so @code etc. will be expanded in % the headline as they should be, not taken literally (outputting ''code). \ifodd\pageno \getoddheadingmarks \else \getevenheadingmarks \fi \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}% \ifodd\pageno \getoddfootingmarks \else \getevenfootingmarks \fi \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}% % {% % Have to do this stuff outside the \shipout because we want it to % take effect in \write's, yet the group defined by the \vbox ends % before the \shipout runs. % \indexdummies % don't expand commands in the output. \normalturnoffactive % \ in index entries must not stay \, e.g., if % the page break happens to be in the middle of an example. % We don't want .vr (or whatever) entries like this: % \entry{{\tt \indexbackslash }acronym}{32}{\code {\acronym}} % "\acronym" won't work when it's read back in; % it needs to be % {\code {{\tt \backslashcurfont }acronym} \shipout\vbox{% % Do this early so pdf references go to the beginning of the page. \ifpdfmakepagedest \pdfdest name{\the\pageno} xyz\fi % \ifcropmarks \vbox to \outervsize\bgroup \hsize = \outerhsize \vskip-\topandbottommargin \vtop to0pt{% \line{\ewtop\hfil\ewtop}% \nointerlineskip \line{% \vbox{\moveleft\cornerthick\nstop}% \hfill \vbox{\moveright\cornerthick\nstop}% }% \vss}% \vskip\topandbottommargin \line\bgroup \hfil % center the page within the outer (page) hsize. \ifodd\pageno\hskip\bindingoffset\fi \vbox\bgroup \fi % \unvbox\headlinebox \pagebody{#1}% \ifdim\ht\footlinebox > 0pt % Only leave this space if the footline is nonempty. % (We lessened \vsize for it in \oddfootingyyy.) % The \baselineskip=24pt in plain's \makefootline has no effect. \vskip 24pt \unvbox\footlinebox \fi % \ifcropmarks \egroup % end of \vbox\bgroup \hfil\egroup % end of (centering) \line\bgroup \vskip\topandbottommargin plus1fill minus1fill \boxmaxdepth = \cornerthick \vbox to0pt{\vss \line{% \vbox{\moveleft\cornerthick\nsbot}% \hfill \vbox{\moveright\cornerthick\nsbot}% }% \nointerlineskip \line{\ewbot\hfil\ewbot}% }% \egroup % \vbox from first cropmarks clause \fi }% end of \shipout\vbox }% end of group with \indexdummies \advancepageno \ifnum\outputpenalty>-20000 \else\dosupereject\fi } \newinsert\margin \dimen\margin=\maxdimen \def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}} {\catcode`\@ =11 \gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi % marginal hacks, juha@viisa.uucp (Juha Takala) \ifvoid\margin\else % marginal info is present \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi \dimen@=\dp#1\relax \unvbox#1\relax \ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi \ifr@ggedbottom \kern-\dimen@ \vfil \fi} } % Here are the rules for the cropmarks. Note that they are % offset so that the space between them is truly \outerhsize or \outervsize % (P. A. MacKay, 12 November, 1986) % \def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong} \def\nstop{\vbox {\hrule height\cornerthick depth\cornerlong width\cornerthick}} \def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong} \def\nsbot{\vbox {\hrule height\cornerlong depth\cornerthick width\cornerthick}} % Parse an argument, then pass it to #1. The argument is the rest of % the input line (except we remove a trailing comment). #1 should be a % macro which expects an ordinary undelimited TeX argument. % \def\parsearg{\parseargusing{}} \def\parseargusing#1#2{% \def\argtorun{#2}% \begingroup \obeylines \spaceisspace #1% \parseargline\empty% Insert the \empty token, see \finishparsearg below. } {\obeylines % \gdef\parseargline#1^^M{% \endgroup % End of the group started in \parsearg. \argremovecomment #1\comment\ArgTerm% }% } % First remove any @comment, then any @c comment. \def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm} \def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm} % Each occurrence of `\^^M' or `\^^M' is replaced by a single space. % % \argremovec might leave us with trailing space, e.g., % @end itemize @c foo % This space token undergoes the same procedure and is eventually removed % by \finishparsearg. % \def\argcheckspaces#1\^^M{\argcheckspacesX#1\^^M \^^M} \def\argcheckspacesX#1 \^^M{\argcheckspacesY#1\^^M} \def\argcheckspacesY#1\^^M#2\^^M#3\ArgTerm{% \def\temp{#3}% \ifx\temp\empty % Do not use \next, perhaps the caller of \parsearg uses it; reuse \temp: \let\temp\finishparsearg \else \let\temp\argcheckspaces \fi % Put the space token in: \temp#1 #3\ArgTerm } % If a _delimited_ argument is enclosed in braces, they get stripped; so % to get _exactly_ the rest of the line, we had to prevent such situation. % We prepended an \empty token at the very beginning and we expand it now, % just before passing the control to \argtorun. % (Similarly, we have to think about #3 of \argcheckspacesY above: it is % either the null string, or it ends with \^^M---thus there is no danger % that a pair of braces would be stripped. % % But first, we have to remove the trailing space token. % \def\finishparsearg#1 \ArgTerm{\expandafter\argtorun\expandafter{#1}} % \parseargdef\foo{...} % is roughly equivalent to % \def\foo{\parsearg\Xfoo} % \def\Xfoo#1{...} % % Actually, I use \csname\string\foo\endcsname, ie. \\foo, as it is my % favourite TeX trick. --kasal, 16nov03 \def\parseargdef#1{% \expandafter \doparseargdef \csname\string#1\endcsname #1% } \def\doparseargdef#1#2{% \def#2{\parsearg#1}% \def#1##1% } % Several utility definitions with active space: { \obeyspaces \gdef\obeyedspace{ } % Make each space character in the input produce a normal interword % space in the output. Don't allow a line break at this space, as this % is used only in environments like @example, where each line of input % should produce a line of output anyway. % \gdef\sepspaces{\obeyspaces\let =\tie} % If an index command is used in an @example environment, any spaces % therein should become regular spaces in the raw index file, not the % expansion of \tie (\leavevmode \penalty \@M \ ). \gdef\unsepspaces{\let =\space} } \def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next} % Define the framework for environments in texinfo.tex. It's used like this: % % \envdef\foo{...} % \def\Efoo{...} % % It's the responsibility of \envdef to insert \begingroup before the % actual body; @end closes the group after calling \Efoo. \envdef also % defines \thisenv, so the current environment is known; @end checks % whether the environment name matches. The \checkenv macro can also be % used to check whether the current environment is the one expected. % % Non-false conditionals (@iftex, @ifset) don't fit into this, so they % are not treated as environments; they don't open a group. (The % implementation of @end takes care not to call \endgroup in this % special case.) % At run-time, environments start with this: \def\startenvironment#1{\begingroup\def\thisenv{#1}} % initialize \let\thisenv\empty % ... but they get defined via ``\envdef\foo{...}'': \long\def\envdef#1#2{\def#1{\startenvironment#1#2}} \def\envparseargdef#1#2{\parseargdef#1{\startenvironment#1#2}} % Check whether we're in the right environment: \def\checkenv#1{% \def\temp{#1}% \ifx\thisenv\temp \else \badenverr \fi } % Environment mismatch, #1 expected: \def\badenverr{% \errhelp = \EMsimple \errmessage{This command can appear only \inenvironment\temp, not \inenvironment\thisenv}% } \def\inenvironment#1{% \ifx#1\empty out of any environment% \else in environment \expandafter\string#1% \fi } % @end foo executes the definition of \Efoo. % But first, it executes a specialized version of \checkenv % \parseargdef\end{% \if 1\csname iscond.#1\endcsname \else % The general wording of \badenverr may not be ideal, but... --kasal, 06nov03 \expandafter\checkenv\csname#1\endcsname \csname E#1\endcsname \endgroup \fi } \newhelp\EMsimple{Press RETURN to continue.} %% Simple single-character @ commands % @@ prints an @ % Kludge this until the fonts are right (grr). \def\@{{\tt\char64}} % This is turned off because it was never documented % and you can use @w{...} around a quote to suppress ligatures. %% Define @` and @' to be the same as ` and ' %% but suppressing ligatures. %\def\`{{`}} %\def\'{{'}} % Used to generate quoted braces. \def\mylbrace {{\tt\char123}} \def\myrbrace {{\tt\char125}} \let\{=\mylbrace \let\}=\myrbrace \begingroup % Definitions to produce \{ and \} commands for indices, % and @{ and @} for the aux/toc files. \catcode`\{ = \other \catcode`\} = \other \catcode`\[ = 1 \catcode`\] = 2 \catcode`\! = 0 \catcode`\\ = \other !gdef!lbracecmd[\{]% !gdef!rbracecmd[\}]% !gdef!lbraceatcmd[@{]% !gdef!rbraceatcmd[@}]% !endgroup % @comma{} to avoid , parsing problems. \let\comma = , % Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent % Others are defined by plain TeX: @` @' @" @^ @~ @= @u @v @H. \let\, = \c \let\dotaccent = \. \def\ringaccent#1{{\accent23 #1}} \let\tieaccent = \t \let\ubaraccent = \b \let\udotaccent = \d % Other special characters: @questiondown @exclamdown @ordf @ordm % Plain TeX defines: @AA @AE @O @OE @L (plus lowercase versions) @ss. \def\questiondown{?`} \def\exclamdown{!`} \def\ordf{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{a}}} \def\ordm{\leavevmode\raise1ex\hbox{\selectfonts\lllsize \underbar{o}}} % Dotless i and dotless j, used for accents. \def\imacro{i} \def\jmacro{j} \def\dotless#1{% \def\temp{#1}% \ifx\temp\imacro \ifmmode\imath \else\ptexi \fi \else\ifx\temp\jmacro \ifmmode\jmath \else\j \fi \else \errmessage{@dotless can be used only with i or j}% \fi\fi } % The \TeX{} logo, as in plain, but resetting the spacing so that a % period following counts as ending a sentence. (Idea found in latex.) % \edef\TeX{\TeX \spacefactor=1000 } % @LaTeX{} logo. Not quite the same results as the definition in % latex.ltx, since we use a different font for the raised A; it's most % convenient for us to use an explicitly smaller font, rather than using % the \scriptstyle font (since we don't reset \scriptstyle and % \scriptscriptstyle). % \def\LaTeX{% L\kern-.36em {\setbox0=\hbox{T}% \vbox to \ht0{\hbox{\selectfonts\lllsize A}\vss}}% \kern-.15em \TeX } % Be sure we're in horizontal mode when doing a tie, since we make space % equivalent to this in @example-like environments. Otherwise, a space % at the beginning of a line will start with \penalty -- and % since \penalty is valid in vertical mode, we'd end up putting the % penalty on the vertical list instead of in the new paragraph. {\catcode`@ = 11 % Avoid using \@M directly, because that causes trouble % if the definition is written into an index file. \global\let\tiepenalty = \@M \gdef\tie{\leavevmode\penalty\tiepenalty\ } } % @: forces normal size whitespace following. \def\:{\spacefactor=1000 } % @* forces a line break. \def\*{\hfil\break\hbox{}\ignorespaces} % @/ allows a line break. \let\/=\allowbreak % @. is an end-of-sentence period. \def\.{.\spacefactor=\endofsentencespacefactor\space} % @! is an end-of-sentence bang. \def\!{!\spacefactor=\endofsentencespacefactor\space} % @? is an end-of-sentence query. \def\?{?\spacefactor=\endofsentencespacefactor\space} % @frenchspacing on|off says whether to put extra space after punctuation. % \def\onword{on} \def\offword{off} % \parseargdef\frenchspacing{% \def\temp{#1}% \ifx\temp\onword \plainfrenchspacing \else\ifx\temp\offword \plainnonfrenchspacing \else \errhelp = \EMsimple \errmessage{Unknown @frenchspacing option `\temp', must be on/off}% \fi\fi } % @w prevents a word break. Without the \leavevmode, @w at the % beginning of a paragraph, when TeX is still in vertical mode, would % produce a whole line of output instead of starting the paragraph. \def\w#1{\leavevmode\hbox{#1}} % @group ... @end group forces ... to be all on one page, by enclosing % it in a TeX vbox. We use \vtop instead of \vbox to construct the box % to keep its height that of a normal line. According to the rules for % \topskip (p.114 of the TeXbook), the glue inserted is % max (\topskip - \ht (first item), 0). If that height is large, % therefore, no glue is inserted, and the space between the headline and % the text is small, which looks bad. % % Another complication is that the group might be very large. This can % cause the glue on the previous page to be unduly stretched, because it % does not have much material. In this case, it's better to add an % explicit \vfill so that the extra space is at the bottom. The % threshold for doing this is if the group is more than \vfilllimit % percent of a page (\vfilllimit can be changed inside of @tex). % \newbox\groupbox \def\vfilllimit{0.7} % \envdef\group{% \ifnum\catcode`\^^M=\active \else \errhelp = \groupinvalidhelp \errmessage{@group invalid in context where filling is enabled}% \fi \startsavinginserts % \setbox\groupbox = \vtop\bgroup % Do @comment since we are called inside an environment such as % @example, where each end-of-line in the input causes an % end-of-line in the output. We don't want the end-of-line after % the `@group' to put extra space in the output. Since @group % should appear on a line by itself (according to the Texinfo % manual), we don't worry about eating any user text. \comment } % % The \vtop produces a box with normal height and large depth; thus, TeX puts % \baselineskip glue before it, and (when the next line of text is done) % \lineskip glue after it. Thus, space below is not quite equal to space % above. But it's pretty close. \def\Egroup{% % To get correct interline space between the last line of the group % and the first line afterwards, we have to propagate \prevdepth. \endgraf % Not \par, as it may have been set to \lisppar. \global\dimen1 = \prevdepth \egroup % End the \vtop. % \dimen0 is the vertical size of the group's box. \dimen0 = \ht\groupbox \advance\dimen0 by \dp\groupbox % \dimen2 is how much space is left on the page (more or less). \dimen2 = \pageheight \advance\dimen2 by -\pagetotal % if the group doesn't fit on the current page, and it's a big big % group, force a page break. \ifdim \dimen0 > \dimen2 \ifdim \pagetotal < \vfilllimit\pageheight \page \fi \fi \box\groupbox \prevdepth = \dimen1 \checkinserts } % % TeX puts in an \escapechar (i.e., `@') at the beginning of the help % message, so this ends up printing `@group can only ...'. % \newhelp\groupinvalidhelp{% group can only be used in environments such as @example,^^J% where each line of input produces a line of output.} % @need space-in-mils % forces a page break if there is not space-in-mils remaining. \newdimen\mil \mil=0.001in % Old definition--didn't work. %\parseargdef\need{\par % %% This method tries to make TeX break the page naturally %% if the depth of the box does not fit. %{\baselineskip=0pt% %\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak %\prevdepth=-1000pt %}} \parseargdef\need{% % Ensure vertical mode, so we don't make a big box in the middle of a % paragraph. \par % % If the @need value is less than one line space, it's useless. \dimen0 = #1\mil \dimen2 = \ht\strutbox \advance\dimen2 by \dp\strutbox \ifdim\dimen0 > \dimen2 % % Do a \strut just to make the height of this box be normal, so the % normal leading is inserted relative to the preceding line. % And a page break here is fine. \vtop to #1\mil{\strut\vfil}% % % TeX does not even consider page breaks if a penalty added to the % main vertical list is 10000 or more. But in order to see if the % empty box we just added fits on the page, we must make it consider % page breaks. On the other hand, we don't want to actually break the % page after the empty box. So we use a penalty of 9999. % % There is an extremely small chance that TeX will actually break the % page at this \penalty, if there are no other feasible breakpoints in % sight. (If the user is using lots of big @group commands, which % almost-but-not-quite fill up a page, TeX will have a hard time doing % good page breaking, for example.) However, I could not construct an % example where a page broke at this \penalty; if it happens in a real % document, then we can reconsider our strategy. \penalty9999 % % Back up by the size of the box, whether we did a page break or not. \kern -#1\mil % % Do not allow a page break right after this kern. \nobreak \fi } % @br forces paragraph break (and is undocumented). \let\br = \par % @page forces the start of a new page. % \def\page{\par\vfill\supereject} % @exdent text.... % outputs text on separate line in roman font, starting at standard page margin % This records the amount of indent in the innermost environment. % That's how much \exdent should take out. \newskip\exdentamount % This defn is used inside fill environments such as @defun. \parseargdef\exdent{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break} % This defn is used inside nofill environments such as @example. \parseargdef\nofillexdent{{\advance \leftskip by -\exdentamount \leftline{\hskip\leftskip{\rm#1}}}} % @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current % paragraph. For more general purposes, use the \margin insertion % class. WHICH is `l' or `r'. % \newskip\inmarginspacing \inmarginspacing=1cm \def\strutdepth{\dp\strutbox} % \def\doinmargin#1#2{\strut\vadjust{% \nobreak \kern-\strutdepth \vtop to \strutdepth{% \baselineskip=\strutdepth \vss % if you have multiple lines of stuff to put here, you'll need to % make the vbox yourself of the appropriate size. \ifx#1l% \llap{\ignorespaces #2\hskip\inmarginspacing}% \else \rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}% \fi \null }% }} \def\inleftmargin{\doinmargin l} \def\inrightmargin{\doinmargin r} % % @inmargin{TEXT [, RIGHT-TEXT]} % (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right; % else use TEXT for both). % \def\inmargin#1{\parseinmargin #1,,\finish} \def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing. \setbox0 = \hbox{\ignorespaces #2}% \ifdim\wd0 > 0pt \def\lefttext{#1}% have both texts \def\righttext{#2}% \else \def\lefttext{#1}% have only one text \def\righttext{#1}% \fi % \ifodd\pageno \def\temp{\inrightmargin\righttext}% odd page -> outside is right margin \else \def\temp{\inleftmargin\lefttext}% \fi \temp } % @include FILE -- \input text of FILE. % \def\include{\parseargusing\filenamecatcodes\includezzz} \def\includezzz#1{% \pushthisfilestack \def\thisfile{#1}% {% \makevalueexpandable % we want to expand any @value in FILE. \turnoffactive % and allow special characters in the expansion \indexnofonts % Allow `@@' and other weird things in file names. \edef\temp{\noexpand\input #1 }% % % This trickery is to read FILE outside of a group, in case it makes % definitions, etc. \expandafter }\temp \popthisfilestack } \def\filenamecatcodes{% \catcode`\\=\other \catcode`~=\other \catcode`^=\other \catcode`_=\other \catcode`|=\other \catcode`<=\other \catcode`>=\other \catcode`+=\other \catcode`-=\other \catcode`\`=\other \catcode`\'=\other } \def\pushthisfilestack{% \expandafter\pushthisfilestackX\popthisfilestack\StackTerm } \def\pushthisfilestackX{% \expandafter\pushthisfilestackY\thisfile\StackTerm } \def\pushthisfilestackY #1\StackTerm #2\StackTerm {% \gdef\popthisfilestack{\gdef\thisfile{#1}\gdef\popthisfilestack{#2}}% } \def\popthisfilestack{\errthisfilestackempty} \def\errthisfilestackempty{\errmessage{Internal error: the stack of filenames is empty.}} \def\thisfile{} % @center line % outputs that line, centered. % \parseargdef\center{% \ifhmode \let\next\centerH \else \let\next\centerV \fi \next{\hfil \ignorespaces#1\unskip \hfil}% } \def\centerH#1{% {% \hfil\break \advance\hsize by -\leftskip \advance\hsize by -\rightskip \line{#1}% \break }% } \def\centerV#1{\line{\kern\leftskip #1\kern\rightskip}} % @sp n outputs n lines of vertical space \parseargdef\sp{\vskip #1\baselineskip} % @comment ...line which is ignored... % @c is the same as @comment % @ignore ... @end ignore is another way to write a comment \def\comment{\begingroup \catcode`\^^M=\other% \catcode`\@=\other \catcode`\{=\other \catcode`\}=\other% \commentxxx} {\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}} \let\c=\comment % @paragraphindent NCHARS % We'll use ems for NCHARS, close enough. % NCHARS can also be the word `asis' or `none'. % We cannot feasibly implement @paragraphindent asis, though. % \def\asisword{asis} % no translation, these are keywords \def\noneword{none} % \parseargdef\paragraphindent{% \def\temp{#1}% \ifx\temp\asisword \else \ifx\temp\noneword \defaultparindent = 0pt \else \defaultparindent = #1em \fi \fi \parindent = \defaultparindent } % @exampleindent NCHARS % We'll use ems for NCHARS like @paragraphindent. % It seems @exampleindent asis isn't necessary, but % I preserve it to make it similar to @paragraphindent. \parseargdef\exampleindent{% \def\temp{#1}% \ifx\temp\asisword \else \ifx\temp\noneword \lispnarrowing = 0pt \else \lispnarrowing = #1em \fi \fi } % @firstparagraphindent WORD % If WORD is `none', then suppress indentation of the first paragraph % after a section heading. If WORD is `insert', then do indent at such % paragraphs. % % The paragraph indentation is suppressed or not by calling % \suppressfirstparagraphindent, which the sectioning commands do. % We switch the definition of this back and forth according to WORD. % By default, we suppress indentation. % \def\suppressfirstparagraphindent{\dosuppressfirstparagraphindent} \def\insertword{insert} % \parseargdef\firstparagraphindent{% \def\temp{#1}% \ifx\temp\noneword \let\suppressfirstparagraphindent = \dosuppressfirstparagraphindent \else\ifx\temp\insertword \let\suppressfirstparagraphindent = \relax \else \errhelp = \EMsimple \errmessage{Unknown @firstparagraphindent option `\temp'}% \fi\fi } % Here is how we actually suppress indentation. Redefine \everypar to % \kern backwards by \parindent, and then reset itself to empty. % % We also make \indent itself not actually do anything until the next % paragraph. % \gdef\dosuppressfirstparagraphindent{% \gdef\indent{% \restorefirstparagraphindent \indent }% \gdef\noindent{% \restorefirstparagraphindent \noindent }% \global\everypar = {% \kern -\parindent \restorefirstparagraphindent }% } \gdef\restorefirstparagraphindent{% \global \let \indent = \ptexindent \global \let \noindent = \ptexnoindent \global \everypar = {}% } % @asis just yields its argument. Used with @table, for example. % \def\asis#1{#1} % @math outputs its argument in math mode. % % One complication: _ usually means subscripts, but it could also mean % an actual _ character, as in @math{@var{some_variable} + 1}. So make % _ active, and distinguish by seeing if the current family is \slfam, % which is what @var uses. { \catcode`\_ = \active \gdef\mathunderscore{% \catcode`\_=\active \def_{\ifnum\fam=\slfam \_\else\sb\fi}% } } % Another complication: we want \\ (and @\) to output a \ character. % FYI, plain.tex uses \\ as a temporary control sequence (why?), but % this is not advertised and we don't care. Texinfo does not % otherwise define @\. % % The \mathchar is class=0=ordinary, family=7=ttfam, position=5C=\. \def\mathbackslash{\ifnum\fam=\ttfam \mathchar"075C \else\backslash \fi} % \def\math{% \tex \mathunderscore \let\\ = \mathbackslash \mathactive % make the texinfo accent commands work in math mode \let\"=\ddot \let\'=\acute \let\==\bar \let\^=\hat \let\`=\grave \let\u=\breve \let\v=\check \let\~=\tilde \let\dotaccent=\dot $\finishmath } \def\finishmath#1{#1$\endgroup} % Close the group opened by \tex. % Some active characters (such as <) are spaced differently in math. % We have to reset their definitions in case the @math was an argument % to a command which sets the catcodes (such as @item or @section). % { \catcode`^ = \active \catcode`< = \active \catcode`> = \active \catcode`+ = \active \catcode`' = \active \gdef\mathactive{% \let^ = \ptexhat \let< = \ptexless \let> = \ptexgtr \let+ = \ptexplus \let' = \ptexquoteright } } % Some math mode symbols. \def\bullet{$\ptexbullet$} \def\geq{\ifmmode \ge\else $\ge$\fi} \def\leq{\ifmmode \le\else $\le$\fi} \def\minus{\ifmmode -\else $-$\fi} % @dots{} outputs an ellipsis using the current font. % We do .5em per period so that it has the same spacing in the cm % typewriter fonts as three actual period characters; on the other hand, % in other typewriter fonts three periods are wider than 1.5em. So do % whichever is larger. % \def\dots{% \leavevmode \setbox0=\hbox{...}% get width of three periods \ifdim\wd0 > 1.5em \dimen0 = \wd0 \else \dimen0 = 1.5em \fi \hbox to \dimen0{% \hskip 0pt plus.25fil .\hskip 0pt plus1fil .\hskip 0pt plus1fil .\hskip 0pt plus.5fil }% } % @enddots{} is an end-of-sentence ellipsis. % \def\enddots{% \dots \spacefactor=\endofsentencespacefactor } % @comma{} is so commas can be inserted into text without messing up % Texinfo's parsing. % \let\comma = , % @refill is a no-op. \let\refill=\relax % If working on a large document in chapters, it is convenient to % be able to disable indexing, cross-referencing, and contents, for test runs. % This is done with @novalidate (before @setfilename). % \newif\iflinks \linkstrue % by default we want the aux files. \let\novalidate = \linksfalse % @setfilename is done at the beginning of every texinfo file. % So open here the files we need to have open while reading the input. % This makes it possible to make a .fmt file for texinfo. \def\setfilename{% \fixbackslash % Turn off hack to swallow `\input texinfo'. \iflinks \tryauxfile % Open the new aux file. TeX will close it automatically at exit. \immediate\openout\auxfile=\jobname.aux \fi % \openindices needs to do some work in any case. \openindices \let\setfilename=\comment % Ignore extra @setfilename cmds. % % If texinfo.cnf is present on the system, read it. % Useful for site-wide @afourpaper, etc. \openin 1 texinfo.cnf \ifeof 1 \else \input texinfo.cnf \fi \closein 1 % \comment % Ignore the actual filename. } % Called from \setfilename. % \def\openindices{% \newindex{cp}% \newcodeindex{fn}% \newcodeindex{vr}% \newcodeindex{tp}% \newcodeindex{ky}% \newcodeindex{pg}% } % @bye. \outer\def\bye{\pagealignmacro\tracingstats=1\ptexend} \message{pdf,} % adobe `portable' document format \newcount\tempnum \newcount\lnkcount \newtoks\filename \newcount\filenamelength \newcount\pgn \newtoks\toksA \newtoks\toksB \newtoks\toksC \newtoks\toksD \newbox\boxA \newcount\countA \newif\ifpdf \newif\ifpdfmakepagedest % when pdftex is run in dvi mode, \pdfoutput is defined (so \pdfoutput=1 % can be set). So we test for \relax and 0 as well as \undefined, % borrowed from ifpdf.sty. \ifx\pdfoutput\undefined \else \ifx\pdfoutput\relax \else \ifcase\pdfoutput \else \pdftrue \fi \fi \fi % PDF uses PostScript string constants for the names of xref targets, % for display in the outlines, and in other places. Thus, we have to % double any backslashes. Otherwise, a name like "\node" will be % interpreted as a newline (\n), followed by o, d, e. Not good. % http://www.ntg.nl/pipermail/ntg-pdftex/2004-July/000654.html % (and related messages, the final outcome is that it is up to the TeX % user to double the backslashes and otherwise make the string valid, so % that's what we do). % double active backslashes. % {\catcode`\@=0 \catcode`\\=\active @gdef@activebackslashdouble{% @catcode`@\=@active @let\=@doublebackslash} } % To handle parens, we must adopt a different approach, since parens are % not active characters. hyperref.dtx (which has the same problem as % us) handles it with this amazing macro to replace tokens, with minor % changes for Texinfo. It is included here under the GPL by permission % from the author, Heiko Oberdiek. % % #1 is the tokens to replace. % #2 is the replacement. % #3 is the control sequence with the string. % \def\HyPsdSubst#1#2#3{% \def\HyPsdReplace##1#1##2\END{% ##1% \ifx\\##2\\% \else #2% \HyReturnAfterFi{% \HyPsdReplace##2\END }% \fi }% \xdef#3{\expandafter\HyPsdReplace#3#1\END}% } \long\def\HyReturnAfterFi#1\fi{\fi#1} % #1 is a control sequence in which to do the replacements. \def\backslashparens#1{% \xdef#1{#1}% redefine it as its expansion; the definition is simply % \lastnode when called from \setref -> \pdfmkdest. \HyPsdSubst{(}{\realbackslash(}{#1}% \HyPsdSubst{)}{\realbackslash)}{#1}% } \newhelp\nopdfimagehelp{Texinfo supports .png, .jpg, .jpeg, and .pdf images with PDF output, and none of those formats could be found. (.eps cannot be supported due to the design of the PDF format; use regular TeX (DVI output) for that.)} \ifpdf % % Color manipulation macros based on pdfcolor.tex, % except using rgb instead of cmyk; the latter is said to render as a % very dark gray on-screen and a very dark halftone in print, instead % of actual black. \def\rgbDarkRed{0.50 0.09 0.12} \def\rgbBlack{0 0 0} % % k sets the color for filling (usual text, etc.); % K sets the color for stroking (thin rules, e.g., normal _'s). \def\pdfsetcolor#1{\pdfliteral{#1 rg #1 RG}} % % Set color, and create a mark which defines \thiscolor accordingly, % so that \makeheadline knows which color to restore. \def\setcolor#1{% \xdef\lastcolordefs{\gdef\noexpand\thiscolor{#1}}% \domark \pdfsetcolor{#1}% } % \def\maincolor{\rgbBlack} \pdfsetcolor{\maincolor} \edef\thiscolor{\maincolor} \def\lastcolordefs{} % \def\makefootline{% \baselineskip24pt \line{\pdfsetcolor{\maincolor}\the\footline}% } % \def\makeheadline{% \vbox to 0pt{% \vskip-22.5pt \line{% \vbox to8.5pt{}% % Extract \thiscolor definition from the marks. \getcolormarks % Typeset the headline with \maincolor, then restore the color. \pdfsetcolor{\maincolor}\the\headline\pdfsetcolor{\thiscolor}% }% \vss }% \nointerlineskip } % % \pdfcatalog{/PageMode /UseOutlines} % % #1 is image name, #2 width (might be empty/whitespace), #3 height (ditto). \def\dopdfimage#1#2#3{% \def\imagewidth{#2}\setbox0 = \hbox{\ignorespaces #2}% \def\imageheight{#3}\setbox2 = \hbox{\ignorespaces #3}% % % pdftex (and the PDF format) support .png, .jpg, .pdf (among % others). Let's try in that order. \let\pdfimgext=\empty \begingroup \openin 1 #1.png \ifeof 1 \openin 1 #1.jpg \ifeof 1 \openin 1 #1.jpeg \ifeof 1 \openin 1 #1.JPG \ifeof 1 \openin 1 #1.pdf \ifeof 1 \openin 1 #1.PDF \ifeof 1 \errhelp = \nopdfimagehelp \errmessage{Could not find image file #1 for pdf}% \else \gdef\pdfimgext{PDF}% \fi \else \gdef\pdfimgext{pdf}% \fi \else \gdef\pdfimgext{JPG}% \fi \else \gdef\pdfimgext{jpeg}% \fi \else \gdef\pdfimgext{jpg}% \fi \else \gdef\pdfimgext{png}% \fi \closein 1 \endgroup % % without \immediate, ancient pdftex seg faults when the same image is % included twice. (Version 3.14159-pre-1.0-unofficial-20010704.) \ifnum\pdftexversion < 14 \immediate\pdfimage \else \immediate\pdfximage \fi \ifdim \wd0 >0pt width \imagewidth \fi \ifdim \wd2 >0pt height \imageheight \fi \ifnum\pdftexversion<13 #1.\pdfimgext \else {#1.\pdfimgext}% \fi \ifnum\pdftexversion < 14 \else \pdfrefximage \pdflastximage \fi} % \def\pdfmkdest#1{{% % We have to set dummies so commands such as @code, and characters % such as \, aren't expanded when present in a section title. \indexnofonts \turnoffactive \activebackslashdouble \makevalueexpandable \def\pdfdestname{#1}% \backslashparens\pdfdestname \safewhatsit{\pdfdest name{\pdfdestname} xyz}% }} % % used to mark target names; must be expandable. \def\pdfmkpgn#1{#1} % % by default, use a color that is dark enough to print on paper as % nearly black, but still distinguishable for online viewing. \def\urlcolor{\rgbDarkRed} \def\linkcolor{\rgbDarkRed} \def\endlink{\setcolor{\maincolor}\pdfendlink} % % Adding outlines to PDF; macros for calculating structure of outlines % come from Petr Olsak \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0% \else \csname#1\endcsname \fi} \def\advancenumber#1{\tempnum=\expnumber{#1}\relax \advance\tempnum by 1 \expandafter\xdef\csname#1\endcsname{\the\tempnum}} % % #1 is the section text, which is what will be displayed in the % outline by the pdf viewer. #2 is the pdf expression for the number % of subentries (or empty, for subsubsections). #3 is the node text, % which might be empty if this toc entry had no corresponding node. % #4 is the page number % \def\dopdfoutline#1#2#3#4{% % Generate a link to the node text if that exists; else, use the % page number. We could generate a destination for the section % text in the case where a section has no node, but it doesn't % seem worth the trouble, since most documents are normally structured. \def\pdfoutlinedest{#3}% \ifx\pdfoutlinedest\empty \def\pdfoutlinedest{#4}% \else % Doubled backslashes in the name. {\activebackslashdouble \xdef\pdfoutlinedest{#3}% \backslashparens\pdfoutlinedest}% \fi % % Also double the backslashes in the display string. {\activebackslashdouble \xdef\pdfoutlinetext{#1}% \backslashparens\pdfoutlinetext}% % \pdfoutline goto name{\pdfmkpgn{\pdfoutlinedest}}#2{\pdfoutlinetext}% } % \def\pdfmakeoutlines{% \begingroup % Thanh's hack / proper braces in bookmarks \edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace \edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace % % Read toc silently, to get counts of subentries for \pdfoutline. \def\numchapentry##1##2##3##4{% \def\thischapnum{##2}% \def\thissecnum{0}% \def\thissubsecnum{0}% }% \def\numsecentry##1##2##3##4{% \advancenumber{chap\thischapnum}% \def\thissecnum{##2}% \def\thissubsecnum{0}% }% \def\numsubsecentry##1##2##3##4{% \advancenumber{sec\thissecnum}% \def\thissubsecnum{##2}% }% \def\numsubsubsecentry##1##2##3##4{% \advancenumber{subsec\thissubsecnum}% }% \def\thischapnum{0}% \def\thissecnum{0}% \def\thissubsecnum{0}% % % use \def rather than \let here because we redefine \chapentry et % al. a second time, below. \def\appentry{\numchapentry}% \def\appsecentry{\numsecentry}% \def\appsubsecentry{\numsubsecentry}% \def\appsubsubsecentry{\numsubsubsecentry}% \def\unnchapentry{\numchapentry}% \def\unnsecentry{\numsecentry}% \def\unnsubsecentry{\numsubsecentry}% \def\unnsubsubsecentry{\numsubsubsecentry}% \readdatafile{toc}% % % Read toc second time, this time actually producing the outlines. % The `-' means take the \expnumber as the absolute number of % subentries, which we calculated on our first read of the .toc above. % % We use the node names as the destinations. \def\numchapentry##1##2##3##4{% \dopdfoutline{##1}{count-\expnumber{chap##2}}{##3}{##4}}% \def\numsecentry##1##2##3##4{% \dopdfoutline{##1}{count-\expnumber{sec##2}}{##3}{##4}}% \def\numsubsecentry##1##2##3##4{% \dopdfoutline{##1}{count-\expnumber{subsec##2}}{##3}{##4}}% \def\numsubsubsecentry##1##2##3##4{% count is always zero \dopdfoutline{##1}{}{##3}{##4}}% % % PDF outlines are displayed using system fonts, instead of % document fonts. Therefore we cannot use special characters, % since the encoding is unknown. For example, the eogonek from % Latin 2 (0xea) gets translated to a | character. Info from % Staszek Wawrykiewicz, 19 Jan 2004 04:09:24 +0100. % % xx to do this right, we have to translate 8-bit characters to % their "best" equivalent, based on the @documentencoding. Right % now, I guess we'll just let the pdf reader have its way. \indexnofonts \setupdatafile \catcode`\\=\active \otherbackslash \input \tocreadfilename \endgroup } % \def\skipspaces#1{\def\PP{#1}\def\D{|}% \ifx\PP\D\let\nextsp\relax \else\let\nextsp\skipspaces \ifx\p\space\else\addtokens{\filename}{\PP}% \advance\filenamelength by 1 \fi \fi \nextsp} \def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax} \ifnum\pdftexversion < 14 \let \startlink \pdfannotlink \else \let \startlink \pdfstartlink \fi % make a live url in pdf output. \def\pdfurl#1{% \begingroup % it seems we really need yet another set of dummies; have not % tried to figure out what each command should do in the context % of @url. for now, just make @/ a no-op, that's the only one % people have actually reported a problem with. % \normalturnoffactive \def\@{@}% \let\/=\empty \makevalueexpandable % do we want to go so far as to use \indexnofonts instead of just % special-casing \var here? \def\var##1{##1}% % \leavevmode\setcolor{\urlcolor}% \startlink attr{/Border [0 0 0]}% user{/Subtype /Link /A << /S /URI /URI (#1) >>}% \endgroup} \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}} \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks} \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks} \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}} \def\maketoks{% \expandafter\poptoks\the\toksA|ENDTOKS|\relax \ifx\first0\adn0 \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3 \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6 \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9 \else \ifnum0=\countA\else\makelink\fi \ifx\first.\let\next=\done\else \let\next=\maketoks \addtokens{\toksB}{\the\toksD} \ifx\first,\addtokens{\toksB}{\space}\fi \fi \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi \next} \def\makelink{\addtokens{\toksB}% {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0} \def\pdflink#1{% \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}} \setcolor{\linkcolor}#1\endlink} \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st} \else % non-pdf mode \let\pdfmkdest = \gobble \let\pdfurl = \gobble \let\endlink = \relax \let\setcolor = \gobble \let\pdfsetcolor = \gobble \let\pdfmakeoutlines = \relax \fi % \ifx\pdfoutput \message{fonts,} % Change the current font style to #1, remembering it in \curfontstyle. % For now, we do not accumulate font styles: @b{@i{foo}} prints foo in % italics, not bold italics. % \def\setfontstyle#1{% \def\curfontstyle{#1}% not as a control sequence, because we are \edef'd. \csname ten#1\endcsname % change the current font } % Select #1 fonts with the current style. % \def\selectfonts#1{\csname #1fonts\endcsname \csname\curfontstyle\endcsname} \def\rm{\fam=0 \setfontstyle{rm}} \def\it{\fam=\itfam \setfontstyle{it}} \def\sl{\fam=\slfam \setfontstyle{sl}} \def\bf{\fam=\bffam \setfontstyle{bf}}\def\bfstylename{bf} \def\tt{\fam=\ttfam \setfontstyle{tt}} % Unfortunately, we have to override this for titles and the like, since % in those cases "rm" is bold. Sigh. \def\rmisbold{\rm\def\curfontstyle{bf}} % Texinfo sort of supports the sans serif font style, which plain TeX does not. % So we set up a \sf. \newfam\sffam \def\sf{\fam=\sffam \setfontstyle{sf}} \let\li = \sf % Sometimes we call it \li, not \sf. % We don't need math for this font style. \def\ttsl{\setfontstyle{ttsl}} % Default leading. \newdimen\textleading \textleading = 13.2pt % Set the baselineskip to #1, and the lineskip and strut size % correspondingly. There is no deep meaning behind these magic numbers % used as factors; they just match (closely enough) what Knuth defined. % \def\lineskipfactor{.08333} \def\strutheightpercent{.70833} \def\strutdepthpercent {.29167} % % can get a sort of poor man's double spacing by redefining this. \def\baselinefactor{1} % \def\setleading#1{% \dimen0 = #1\relax \normalbaselineskip = \baselinefactor\dimen0 \normallineskip = \lineskipfactor\normalbaselineskip \normalbaselines \setbox\strutbox =\hbox{% \vrule width0pt height\strutheightpercent\baselineskip depth \strutdepthpercent \baselineskip }% } % PDF CMaps. See also LaTeX's t1.cmap. % % do nothing with this by default. \expandafter\let\csname cmapOT1\endcsname\gobble \expandafter\let\csname cmapOT1IT\endcsname\gobble \expandafter\let\csname cmapOT1TT\endcsname\gobble % if we are producing pdf, and we have \pdffontattr, then define cmaps. % (\pdffontattr was introduced many years ago, but people still run % older pdftex's; it's easy to conditionalize, so we do.) \ifpdf \ifx\pdffontattr\undefined \else \begingroup \catcode`\^^M=\active \def^^M{^^J}% Output line endings as the ^^J char. \catcode`\%=12 \immediate\pdfobj stream {%!PS-Adobe-3.0 Resource-CMap %%DocumentNeededResources: ProcSet (CIDInit) %%IncludeResource: ProcSet (CIDInit) %%BeginResource: CMap (TeX-OT1-0) %%Title: (TeX-OT1-0 TeX OT1 0) %%Version: 1.000 %%EndComments /CIDInit /ProcSet findresource begin 12 dict begin begincmap /CIDSystemInfo << /Registry (TeX) /Ordering (OT1) /Supplement 0 >> def /CMapName /TeX-OT1-0 def /CMapType 2 def 1 begincodespacerange <00> <7F> endcodespacerange 8 beginbfrange <00> <01> <0393> <09> <0A> <03A8> <23> <26> <0023> <28> <3B> <0028> <3F> <5B> <003F> <5D> <5E> <005D> <61> <7A> <0061> <7B> <7C> <2013> endbfrange 40 beginbfchar <02> <0398> <03> <039B> <04> <039E> <05> <03A0> <06> <03A3> <07> <03D2> <08> <03A6> <0B> <00660066> <0C> <00660069> <0D> <0066006C> <0E> <006600660069> <0F> <00660066006C> <10> <0131> <11> <0237> <12> <0060> <13> <00B4> <14> <02C7> <15> <02D8> <16> <00AF> <17> <02DA> <18> <00B8> <19> <00DF> <1A> <00E6> <1B> <0153> <1C> <00F8> <1D> <00C6> <1E> <0152> <1F> <00D8> <21> <0021> <22> <201D> <27> <2019> <3C> <00A1> <3D> <003D> <3E> <00BF> <5C> <201C> <5F> <02D9> <60> <2018> <7D> <02DD> <7E> <007E> <7F> <00A8> endbfchar endcmap CMapName currentdict /CMap defineresource pop end end %%EndResource %%EOF }\endgroup \expandafter\edef\csname cmapOT1\endcsname#1{% \pdffontattr#1{/ToUnicode \the\pdflastobj\space 0 R}% }% % % \cmapOT1IT \begingroup \catcode`\^^M=\active \def^^M{^^J}% Output line endings as the ^^J char. \catcode`\%=12 \immediate\pdfobj stream {%!PS-Adobe-3.0 Resource-CMap %%DocumentNeededResources: ProcSet (CIDInit) %%IncludeResource: ProcSet (CIDInit) %%BeginResource: CMap (TeX-OT1IT-0) %%Title: (TeX-OT1IT-0 TeX OT1IT 0) %%Version: 1.000 %%EndComments /CIDInit /ProcSet findresource begin 12 dict begin begincmap /CIDSystemInfo << /Registry (TeX) /Ordering (OT1IT) /Supplement 0 >> def /CMapName /TeX-OT1IT-0 def /CMapType 2 def 1 begincodespacerange <00> <7F> endcodespacerange 8 beginbfrange <00> <01> <0393> <09> <0A> <03A8> <25> <26> <0025> <28> <3B> <0028> <3F> <5B> <003F> <5D> <5E> <005D> <61> <7A> <0061> <7B> <7C> <2013> endbfrange 42 beginbfchar <02> <0398> <03> <039B> <04> <039E> <05> <03A0> <06> <03A3> <07> <03D2> <08> <03A6> <0B> <00660066> <0C> <00660069> <0D> <0066006C> <0E> <006600660069> <0F> <00660066006C> <10> <0131> <11> <0237> <12> <0060> <13> <00B4> <14> <02C7> <15> <02D8> <16> <00AF> <17> <02DA> <18> <00B8> <19> <00DF> <1A> <00E6> <1B> <0153> <1C> <00F8> <1D> <00C6> <1E> <0152> <1F> <00D8> <21> <0021> <22> <201D> <23> <0023> <24> <00A3> <27> <2019> <3C> <00A1> <3D> <003D> <3E> <00BF> <5C> <201C> <5F> <02D9> <60> <2018> <7D> <02DD> <7E> <007E> <7F> <00A8> endbfchar endcmap CMapName currentdict /CMap defineresource pop end end %%EndResource %%EOF }\endgroup \expandafter\edef\csname cmapOT1IT\endcsname#1{% \pdffontattr#1{/ToUnicode \the\pdflastobj\space 0 R}% }% % % \cmapOT1TT \begingroup \catcode`\^^M=\active \def^^M{^^J}% Output line endings as the ^^J char. \catcode`\%=12 \immediate\pdfobj stream {%!PS-Adobe-3.0 Resource-CMap %%DocumentNeededResources: ProcSet (CIDInit) %%IncludeResource: ProcSet (CIDInit) %%BeginResource: CMap (TeX-OT1TT-0) %%Title: (TeX-OT1TT-0 TeX OT1TT 0) %%Version: 1.000 %%EndComments /CIDInit /ProcSet findresource begin 12 dict begin begincmap /CIDSystemInfo << /Registry (TeX) /Ordering (OT1TT) /Supplement 0 >> def /CMapName /TeX-OT1TT-0 def /CMapType 2 def 1 begincodespacerange <00> <7F> endcodespacerange 5 beginbfrange <00> <01> <0393> <09> <0A> <03A8> <21> <26> <0021> <28> <5F> <0028> <61> <7E> <0061> endbfrange 32 beginbfchar <02> <0398> <03> <039B> <04> <039E> <05> <03A0> <06> <03A3> <07> <03D2> <08> <03A6> <0B> <2191> <0C> <2193> <0D> <0027> <0E> <00A1> <0F> <00BF> <10> <0131> <11> <0237> <12> <0060> <13> <00B4> <14> <02C7> <15> <02D8> <16> <00AF> <17> <02DA> <18> <00B8> <19> <00DF> <1A> <00E6> <1B> <0153> <1C> <00F8> <1D> <00C6> <1E> <0152> <1F> <00D8> <20> <2423> <27> <2019> <60> <2018> <7F> <00A8> endbfchar endcmap CMapName currentdict /CMap defineresource pop end end %%EndResource %%EOF }\endgroup \expandafter\edef\csname cmapOT1TT\endcsname#1{% \pdffontattr#1{/ToUnicode \the\pdflastobj\space 0 R}% }% \fi\fi % Set the font macro #1 to the font named #2, adding on the % specified font prefix (normally `cm'). % #3 is the font's design size, #4 is a scale factor, #5 is the CMap % encoding (currently only OT1, OT1IT and OT1TT are allowed, pass % empty to omit). \def\setfont#1#2#3#4#5{% \font#1=\fontprefix#2#3 scaled #4 \csname cmap#5\endcsname#1% } % This is what gets called when #5 of \setfont is empty. \let\cmap\gobble % emacs-page end of cmaps % Use cm as the default font prefix. % To specify the font prefix, you must define \fontprefix % before you read in texinfo.tex. \ifx\fontprefix\undefined \def\fontprefix{cm} \fi % Support font families that don't use the same naming scheme as CM. \def\rmshape{r} \def\rmbshape{bx} %where the normal face is bold \def\bfshape{b} \def\bxshape{bx} \def\ttshape{tt} \def\ttbshape{tt} \def\ttslshape{sltt} \def\itshape{ti} \def\itbshape{bxti} \def\slshape{sl} \def\slbshape{bxsl} \def\sfshape{ss} \def\sfbshape{ss} \def\scshape{csc} \def\scbshape{csc} % Definitions for a main text size of 11pt. This is the default in % Texinfo. % \def\definetextfontsizexi{% % Text fonts (11.2pt, magstep1). \def\textnominalsize{11pt} \edef\mainmagstep{\magstephalf} \setfont\textrm\rmshape{10}{\mainmagstep}{OT1} \setfont\texttt\ttshape{10}{\mainmagstep}{OT1TT} \setfont\textbf\bfshape{10}{\mainmagstep}{OT1} \setfont\textit\itshape{10}{\mainmagstep}{OT1IT} \setfont\textsl\slshape{10}{\mainmagstep}{OT1} \setfont\textsf\sfshape{10}{\mainmagstep}{OT1} \setfont\textsc\scshape{10}{\mainmagstep}{OT1} \setfont\textttsl\ttslshape{10}{\mainmagstep}{OT1TT} \font\texti=cmmi10 scaled \mainmagstep \font\textsy=cmsy10 scaled \mainmagstep \def\textecsize{1095} % A few fonts for @defun names and args. \setfont\defbf\bfshape{10}{\magstep1}{OT1} \setfont\deftt\ttshape{10}{\magstep1}{OT1TT} \setfont\defttsl\ttslshape{10}{\magstep1}{OT1TT} \def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf} % Fonts for indices, footnotes, small examples (9pt). \def\smallnominalsize{9pt} \setfont\smallrm\rmshape{9}{1000}{OT1} \setfont\smalltt\ttshape{9}{1000}{OT1TT} \setfont\smallbf\bfshape{10}{900}{OT1} \setfont\smallit\itshape{9}{1000}{OT1IT} \setfont\smallsl\slshape{9}{1000}{OT1} \setfont\smallsf\sfshape{9}{1000}{OT1} \setfont\smallsc\scshape{10}{900}{OT1} \setfont\smallttsl\ttslshape{10}{900}{OT1TT} \font\smalli=cmmi9 \font\smallsy=cmsy9 \def\smallecsize{0900} % Fonts for small examples (8pt). \def\smallernominalsize{8pt} \setfont\smallerrm\rmshape{8}{1000}{OT1} \setfont\smallertt\ttshape{8}{1000}{OT1TT} \setfont\smallerbf\bfshape{10}{800}{OT1} \setfont\smallerit\itshape{8}{1000}{OT1IT} \setfont\smallersl\slshape{8}{1000}{OT1} \setfont\smallersf\sfshape{8}{1000}{OT1} \setfont\smallersc\scshape{10}{800}{OT1} \setfont\smallerttsl\ttslshape{10}{800}{OT1TT} \font\smalleri=cmmi8 \font\smallersy=cmsy8 \def\smallerecsize{0800} % Fonts for title page (20.4pt): \def\titlenominalsize{20pt} \setfont\titlerm\rmbshape{12}{\magstep3}{OT1} \setfont\titleit\itbshape{10}{\magstep4}{OT1IT} \setfont\titlesl\slbshape{10}{\magstep4}{OT1} \setfont\titlett\ttbshape{12}{\magstep3}{OT1TT} \setfont\titlettsl\ttslshape{10}{\magstep4}{OT1TT} \setfont\titlesf\sfbshape{17}{\magstep1}{OT1} \let\titlebf=\titlerm \setfont\titlesc\scbshape{10}{\magstep4}{OT1} \font\titlei=cmmi12 scaled \magstep3 \font\titlesy=cmsy10 scaled \magstep4 \def\titleecsize{2074} % Chapter (and unnumbered) fonts (17.28pt). \def\chapnominalsize{17pt} \setfont\chaprm\rmbshape{12}{\magstep2}{OT1} \setfont\chapit\itbshape{10}{\magstep3}{OT1IT} \setfont\chapsl\slbshape{10}{\magstep3}{OT1} \setfont\chaptt\ttbshape{12}{\magstep2}{OT1TT} \setfont\chapttsl\ttslshape{10}{\magstep3}{OT1TT} \setfont\chapsf\sfbshape{17}{1000}{OT1} \let\chapbf=\chaprm \setfont\chapsc\scbshape{10}{\magstep3}{OT1} \font\chapi=cmmi12 scaled \magstep2 \font\chapsy=cmsy10 scaled \magstep3 \def\chapecsize{1728} % Section fonts (14.4pt). \def\secnominalsize{14pt} \setfont\secrm\rmbshape{12}{\magstep1}{OT1} \setfont\secit\itbshape{10}{\magstep2}{OT1IT} \setfont\secsl\slbshape{10}{\magstep2}{OT1} \setfont\sectt\ttbshape{12}{\magstep1}{OT1TT} \setfont\secttsl\ttslshape{10}{\magstep2}{OT1TT} \setfont\secsf\sfbshape{12}{\magstep1}{OT1} \let\secbf\secrm \setfont\secsc\scbshape{10}{\magstep2}{OT1} \font\seci=cmmi12 scaled \magstep1 \font\secsy=cmsy10 scaled \magstep2 \def\sececsize{1440} % Subsection fonts (13.15pt). \def\ssecnominalsize{13pt} \setfont\ssecrm\rmbshape{12}{\magstephalf}{OT1} \setfont\ssecit\itbshape{10}{1315}{OT1IT} \setfont\ssecsl\slbshape{10}{1315}{OT1} \setfont\ssectt\ttbshape{12}{\magstephalf}{OT1TT} \setfont\ssecttsl\ttslshape{10}{1315}{OT1TT} \setfont\ssecsf\sfbshape{12}{\magstephalf}{OT1} \let\ssecbf\ssecrm \setfont\ssecsc\scbshape{10}{1315}{OT1} \font\sseci=cmmi12 scaled \magstephalf \font\ssecsy=cmsy10 scaled 1315 \def\ssececsize{1200} % Reduced fonts for @acro in text (10pt). \def\reducednominalsize{10pt} \setfont\reducedrm\rmshape{10}{1000}{OT1} \setfont\reducedtt\ttshape{10}{1000}{OT1TT} \setfont\reducedbf\bfshape{10}{1000}{OT1} \setfont\reducedit\itshape{10}{1000}{OT1IT} \setfont\reducedsl\slshape{10}{1000}{OT1} \setfont\reducedsf\sfshape{10}{1000}{OT1} \setfont\reducedsc\scshape{10}{1000}{OT1} \setfont\reducedttsl\ttslshape{10}{1000}{OT1TT} \font\reducedi=cmmi10 \font\reducedsy=cmsy10 \def\reducedecsize{1000} % reset the current fonts \textfonts \rm } % end of 11pt text font size definitions % Definitions to make the main text be 10pt Computer Modern, with % section, chapter, etc., sizes following suit. This is for the GNU % Press printing of the Emacs 22 manual. Maybe other manuals in the % future. Used with @smallbook, which sets the leading to 12pt. % \def\definetextfontsizex{% % Text fonts (10pt). \def\textnominalsize{10pt} \edef\mainmagstep{1000} \setfont\textrm\rmshape{10}{\mainmagstep}{OT1} \setfont\texttt\ttshape{10}{\mainmagstep}{OT1TT} \setfont\textbf\bfshape{10}{\mainmagstep}{OT1} \setfont\textit\itshape{10}{\mainmagstep}{OT1IT} \setfont\textsl\slshape{10}{\mainmagstep}{OT1} \setfont\textsf\sfshape{10}{\mainmagstep}{OT1} \setfont\textsc\scshape{10}{\mainmagstep}{OT1} \setfont\textttsl\ttslshape{10}{\mainmagstep}{OT1TT} \font\texti=cmmi10 scaled \mainmagstep \font\textsy=cmsy10 scaled \mainmagstep \def\textecsize{1000} % A few fonts for @defun names and args. \setfont\defbf\bfshape{10}{\magstephalf}{OT1} \setfont\deftt\ttshape{10}{\magstephalf}{OT1TT} \setfont\defttsl\ttslshape{10}{\magstephalf}{OT1TT} \def\df{\let\tentt=\deftt \let\tenbf = \defbf \let\tenttsl=\defttsl \bf} % Fonts for indices, footnotes, small examples (9pt). \def\smallnominalsize{9pt} \setfont\smallrm\rmshape{9}{1000}{OT1} \setfont\smalltt\ttshape{9}{1000}{OT1TT} \setfont\smallbf\bfshape{10}{900}{OT1} \setfont\smallit\itshape{9}{1000}{OT1IT} \setfont\smallsl\slshape{9}{1000}{OT1} \setfont\smallsf\sfshape{9}{1000}{OT1} \setfont\smallsc\scshape{10}{900}{OT1} \setfont\smallttsl\ttslshape{10}{900}{OT1TT} \font\smalli=cmmi9 \font\smallsy=cmsy9 \def\smallecsize{0900} % Fonts for small examples (8pt). \def\smallernominalsize{8pt} \setfont\smallerrm\rmshape{8}{1000}{OT1} \setfont\smallertt\ttshape{8}{1000}{OT1TT} \setfont\smallerbf\bfshape{10}{800}{OT1} \setfont\smallerit\itshape{8}{1000}{OT1IT} \setfont\smallersl\slshape{8}{1000}{OT1} \setfont\smallersf\sfshape{8}{1000}{OT1} \setfont\smallersc\scshape{10}{800}{OT1} \setfont\smallerttsl\ttslshape{10}{800}{OT1TT} \font\smalleri=cmmi8 \font\smallersy=cmsy8 \def\smallerecsize{0800} % Fonts for title page (20.4pt): \def\titlenominalsize{20pt} \setfont\titlerm\rmbshape{12}{\magstep3}{OT1} \setfont\titleit\itbshape{10}{\magstep4}{OT1IT} \setfont\titlesl\slbshape{10}{\magstep4}{OT1} \setfont\titlett\ttbshape{12}{\magstep3}{OT1TT} \setfont\titlettsl\ttslshape{10}{\magstep4}{OT1TT} \setfont\titlesf\sfbshape{17}{\magstep1}{OT1} \let\titlebf=\titlerm \setfont\titlesc\scbshape{10}{\magstep4}{OT1} \font\titlei=cmmi12 scaled \magstep3 \font\titlesy=cmsy10 scaled \magstep4 \def\titleecsize{2074} % Chapter fonts (14.4pt). \def\chapnominalsize{14pt} \setfont\chaprm\rmbshape{12}{\magstep1}{OT1} \setfont\chapit\itbshape{10}{\magstep2}{OT1IT} \setfont\chapsl\slbshape{10}{\magstep2}{OT1} \setfont\chaptt\ttbshape{12}{\magstep1}{OT1TT} \setfont\chapttsl\ttslshape{10}{\magstep2}{OT1TT} \setfont\chapsf\sfbshape{12}{\magstep1}{OT1} \let\chapbf\chaprm \setfont\chapsc\scbshape{10}{\magstep2}{OT1} \font\chapi=cmmi12 scaled \magstep1 \font\chapsy=cmsy10 scaled \magstep2 \def\chapecsize{1440} % Section fonts (12pt). \def\secnominalsize{12pt} \setfont\secrm\rmbshape{12}{1000}{OT1} \setfont\secit\itbshape{10}{\magstep1}{OT1IT} \setfont\secsl\slbshape{10}{\magstep1}{OT1} \setfont\sectt\ttbshape{12}{1000}{OT1TT} \setfont\secttsl\ttslshape{10}{\magstep1}{OT1TT} \setfont\secsf\sfbshape{12}{1000}{OT1} \let\secbf\secrm \setfont\secsc\scbshape{10}{\magstep1}{OT1} \font\seci=cmmi12 \font\secsy=cmsy10 scaled \magstep1 \def\sececsize{1200} % Subsection fonts (10pt). \def\ssecnominalsize{10pt} \setfont\ssecrm\rmbshape{10}{1000}{OT1} \setfont\ssecit\itbshape{10}{1000}{OT1IT} \setfont\ssecsl\slbshape{10}{1000}{OT1} \setfont\ssectt\ttbshape{10}{1000}{OT1TT} \setfont\ssecttsl\ttslshape{10}{1000}{OT1TT} \setfont\ssecsf\sfbshape{10}{1000}{OT1} \let\ssecbf\ssecrm \setfont\ssecsc\scbshape{10}{1000}{OT1} \font\sseci=cmmi10 \font\ssecsy=cmsy10 \def\ssececsize{1000} % Reduced fonts for @acro in text (9pt). \def\reducednominalsize{9pt} \setfont\reducedrm\rmshape{9}{1000}{OT1} \setfont\reducedtt\ttshape{9}{1000}{OT1TT} \setfont\reducedbf\bfshape{10}{900}{OT1} \setfont\reducedit\itshape{9}{1000}{OT1IT} \setfont\reducedsl\slshape{9}{1000}{OT1} \setfont\reducedsf\sfshape{9}{1000}{OT1} \setfont\reducedsc\scshape{10}{900}{OT1} \setfont\reducedttsl\ttslshape{10}{900}{OT1TT} \font\reducedi=cmmi9 \font\reducedsy=cmsy9 \def\reducedecsize{0900} % reduce space between paragraphs \divide\parskip by 2 % reset the current fonts \textfonts \rm } % end of 10pt text font size definitions % We provide the user-level command % @fonttextsize 10 % (or 11) to redefine the text font size. pt is assumed. % \def\xword{10} \def\xiword{11} % \parseargdef\fonttextsize{% \def\textsizearg{#1}% \wlog{doing @fonttextsize \textsizearg}% % % Set \globaldefs so that documents can use this inside @tex, since % makeinfo 4.8 does not support it, but we need it nonetheless. % \begingroup \globaldefs=1 \ifx\textsizearg\xword \definetextfontsizex \else \ifx\textsizearg\xiword \definetextfontsizexi \else \errhelp=\EMsimple \errmessage{@fonttextsize only supports `10' or `11', not `\textsizearg'} \fi\fi \endgroup } % In order for the font changes to affect most math symbols and letters, % we have to define the \textfont of the standard families. Since % texinfo doesn't allow for producing subscripts and superscripts except % in the main text, we don't bother to reset \scriptfont and % \scriptscriptfont (which would also require loading a lot more fonts). % \def\resetmathfonts{% \textfont0=\tenrm \textfont1=\teni \textfont2=\tensy \textfont\itfam=\tenit \textfont\slfam=\tensl \textfont\bffam=\tenbf \textfont\ttfam=\tentt \textfont\sffam=\tensf } % The font-changing commands redefine the meanings of \tenSTYLE, instead % of just \STYLE. We do this because \STYLE needs to also set the % current \fam for math mode. Our \STYLE (e.g., \rm) commands hardwire % \tenSTYLE to set the current font. % % Each font-changing command also sets the names \lsize (one size lower) % and \lllsize (three sizes lower). These relative commands are used in % the LaTeX logo and acronyms. % % This all needs generalizing, badly. % \def\textfonts{% \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy \let\tenttsl=\textttsl \def\curfontsize{text}% \def\lsize{reduced}\def\lllsize{smaller}% \resetmathfonts \setleading{\textleading}} \def\titlefonts{% \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy \let\tenttsl=\titlettsl \def\curfontsize{title}% \def\lsize{chap}\def\lllsize{subsec}% \resetmathfonts \setleading{25pt}} \def\titlefont#1{{\titlefonts\rmisbold #1}} \def\chapfonts{% \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl \def\curfontsize{chap}% \def\lsize{sec}\def\lllsize{text}% \resetmathfonts \setleading{19pt}} \def\secfonts{% \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy \let\tenttsl=\secttsl \def\curfontsize{sec}% \def\lsize{subsec}\def\lllsize{reduced}% \resetmathfonts \setleading{16pt}} \def\subsecfonts{% \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy \let\tenttsl=\ssecttsl \def\curfontsize{ssec}% \def\lsize{text}\def\lllsize{small}% \resetmathfonts \setleading{15pt}} \let\subsubsecfonts = \subsecfonts \def\reducedfonts{% \let\tenrm=\reducedrm \let\tenit=\reducedit \let\tensl=\reducedsl \let\tenbf=\reducedbf \let\tentt=\reducedtt \let\reducedcaps=\reducedsc \let\tensf=\reducedsf \let\teni=\reducedi \let\tensy=\reducedsy \let\tenttsl=\reducedttsl \def\curfontsize{reduced}% \def\lsize{small}\def\lllsize{smaller}% \resetmathfonts \setleading{10.5pt}} \def\smallfonts{% \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy \let\tenttsl=\smallttsl \def\curfontsize{small}% \def\lsize{smaller}\def\lllsize{smaller}% \resetmathfonts \setleading{10.5pt}} \def\smallerfonts{% \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy \let\tenttsl=\smallerttsl \def\curfontsize{smaller}% \def\lsize{smaller}\def\lllsize{smaller}% \resetmathfonts \setleading{9.5pt}} % Fonts for short table of contents. \setfont\shortcontrm\rmshape{12}{1000}{OT1} \setfont\shortcontbf\bfshape{10}{\magstep1}{OT1} % no cmb12 \setfont\shortcontsl\slshape{12}{1000}{OT1} \setfont\shortconttt\ttshape{12}{1000}{OT1TT} % Define these just so they can be easily changed for other fonts. \def\angleleft{$\langle$} \def\angleright{$\rangle$} % Set the fonts to use with the @small... environments. \let\smallexamplefonts = \smallfonts % About \smallexamplefonts. If we use \smallfonts (9pt), @smallexample % can fit this many characters: % 8.5x11=86 smallbook=72 a4=90 a5=69 % If we use \scriptfonts (8pt), then we can fit this many characters: % 8.5x11=90+ smallbook=80 a4=90+ a5=77 % For me, subjectively, the few extra characters that fit aren't worth % the additional smallness of 8pt. So I'm making the default 9pt. % % By the way, for comparison, here's what fits with @example (10pt): % 8.5x11=71 smallbook=60 a4=75 a5=58 % --karl, 24jan03. % Set up the default fonts, so we can use them for creating boxes. % \definetextfontsizexi \message{markup,} % Check if we are currently using a typewriter font. Since all the % Computer Modern typewriter fonts have zero interword stretch (and % shrink), and it is reasonable to expect all typewriter fonts to have % this property, we can check that font parameter. % \def\ifmonospace{\ifdim\fontdimen3\font=0pt } % Markup style infrastructure. \defmarkupstylesetup\INITMACRO will % define and register \INITMACRO to be called on markup style changes. % \INITMACRO can check \currentmarkupstyle for the innermost % style and the set of \ifmarkupSTYLE switches for all styles % currently in effect. \newif\ifmarkupvar \newif\ifmarkupsamp \newif\ifmarkupkey %\newif\ifmarkupfile % @file == @samp. %\newif\ifmarkupoption % @option == @samp. \newif\ifmarkupcode \newif\ifmarkupkbd %\newif\ifmarkupenv % @env == @code. %\newif\ifmarkupcommand % @command == @code. \newif\ifmarkuptex % @tex (and part of @math, for now). \newif\ifmarkupexample \newif\ifmarkupverb \newif\ifmarkupverbatim \let\currentmarkupstyle\empty \def\setupmarkupstyle#1{% \csname markup#1true\endcsname \def\currentmarkupstyle{#1}% \markupstylesetup } \let\markupstylesetup\empty \def\defmarkupstylesetup#1{% \expandafter\def\expandafter\markupstylesetup \expandafter{\markupstylesetup #1}% \def#1% } % Markup style setup for left and right quotes. \defmarkupstylesetup\markupsetuplq{% \expandafter\let\expandafter \temp \csname markupsetuplq\currentmarkupstyle\endcsname \ifx\temp\relax \markupsetuplqdefault \else \temp \fi } \defmarkupstylesetup\markupsetuprq{% \expandafter\let\expandafter \temp \csname markupsetuprq\currentmarkupstyle\endcsname \ifx\temp\relax \markupsetuprqdefault \else \temp \fi } { \catcode`\'=\active \catcode`\`=\active \gdef\markupsetuplqdefault{\let`\lq} \gdef\markupsetuprqdefault{\let'\rq} \gdef\markupsetcodequoteleft{\let`\codequoteleft} \gdef\markupsetcodequoteright{\let'\codequoteright} \gdef\markupsetnoligaturesquoteleft{\let`\noligaturesquoteleft} } \let\markupsetuplqcode \markupsetcodequoteleft \let\markupsetuprqcode \markupsetcodequoteright \let\markupsetuplqexample \markupsetcodequoteleft \let\markupsetuprqexample \markupsetcodequoteright \let\markupsetuplqverb \markupsetcodequoteleft \let\markupsetuprqverb \markupsetcodequoteright \let\markupsetuplqverbatim \markupsetcodequoteleft \let\markupsetuprqverbatim \markupsetcodequoteright \let\markupsetuplqsamp \markupsetnoligaturesquoteleft \let\markupsetuplqkbd \markupsetnoligaturesquoteleft % Allow an option to not replace quotes with a regular directed right % quote/apostrophe (char 0x27), but instead use the undirected quote % from cmtt (char 0x0d). The undirected quote is ugly, so don't make it % the default, but it works for pasting with more pdf viewers (at least % evince), the lilypond developers report. xpdf does work with the % regular 0x27. % \def\codequoteright{% \expandafter\ifx\csname SETtxicodequoteundirected\endcsname\relax \expandafter\ifx\csname SETcodequoteundirected\endcsname\relax '% \else \char'15 \fi \else \char'15 \fi } % % and a similar option for the left quote char vs. a grave accent. % Modern fonts display ASCII 0x60 as a grave accent, so some people like % the code environments to do likewise. % \def\codequoteleft{% \expandafter\ifx\csname SETtxicodequotebacktick\endcsname\relax \expandafter\ifx\csname SETcodequotebacktick\endcsname\relax % [Knuth] pp. 380,381,391 % \relax disables Spanish ligatures ?` and !` of \tt font. \relax`% \else \char'22 \fi \else \char'22 \fi } % [Knuth] pp. 380,381,391, disable Spanish ligatures ?` and !` of \tt font. \def\noligaturesquoteleft{\relax\lq} % Count depth in font-changes, for error checks \newcount\fontdepth \fontdepth=0 %% Add scribe-like font environments, plus @l for inline lisp (usually sans %% serif) and @ii for TeX italic % \smartitalic{ARG} outputs arg in italics, followed by an italic correction % unless the following character is such as not to need one. \def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else \ptexslash\fi\fi\fi} \def\smartslanted#1{{\ifusingtt\ttsl\sl #1}\futurelet\next\smartitalicx} \def\smartitalic#1{{\ifusingtt\ttsl\it #1}\futurelet\next\smartitalicx} % like \smartslanted except unconditionally uses \ttsl. % @var is set to this for defun arguments. \def\ttslanted#1{{\ttsl #1}\futurelet\next\smartitalicx} % @cite is like \smartslanted except unconditionally use \sl. We never want % ttsl for book titles, do we? \def\cite#1{{\sl #1}\futurelet\next\smartitalicx} \let\i=\smartitalic \let\slanted=\smartslanted \def\var#1{{\setupmarkupstyle{var}\smartslanted{#1}}} \let\dfn=\smartslanted \let\emph=\smartitalic % Explicit font changes: @r, @sc, undocumented @ii. \def\r#1{{\rm #1}} % roman font \def\sc#1{{\smallcaps#1}} % smallcaps font \def\ii#1{{\it #1}} % italic font % @b, explicit bold. Also @strong. \def\b#1{{\bf #1}} \let\strong=\b % @sansserif, explicit sans. \def\sansserif#1{{\sf #1}} % We can't just use \exhyphenpenalty, because that only has effect at % the end of a paragraph. Restore normal hyphenation at the end of the % group within which \nohyphenation is presumably called. % \def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation} \def\restorehyphenation{\hyphenchar\font = `- } % Set sfcode to normal for the chars that usually have another value. % Can't use plain's \frenchspacing because it uses the `\x notation, and % sometimes \x has an active definition that messes things up. % \catcode`@=11 \def\plainfrenchspacing{% \sfcode\dotChar =\@m \sfcode\questChar=\@m \sfcode\exclamChar=\@m \sfcode\colonChar=\@m \sfcode\semiChar =\@m \sfcode\commaChar =\@m \def\endofsentencespacefactor{1000}% for @. and friends } \def\plainnonfrenchspacing{% \sfcode`\.3000\sfcode`\?3000\sfcode`\!3000 \sfcode`\:2000\sfcode`\;1500\sfcode`\,1250 \def\endofsentencespacefactor{3000}% for @. and friends } \catcode`@=\other \def\endofsentencespacefactor{3000}% default % @t, explicit typewriter. \def\t#1{% {\tt \rawbackslash \plainfrenchspacing #1}% \null } % @samp. \def\samp#1{{\setupmarkupstyle{samp}\lq\tclose{#1}\rq\null}} % definition of @key that produces a lozenge. Doesn't adjust to text size. %\setfont\keyrm\rmshape{8}{1000}{OT1} %\font\keysy=cmsy9 %\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{% % \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{% % \vbox{\hrule\kern-0.4pt % \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}% % \kern-0.4pt\hrule}% % \kern-.06em\raise0.4pt\hbox{\angleright}}}} % definition of @key with no lozenge. If the current font is already % monospace, don't change it; that way, we respect @kbdinputstyle. But % if it isn't monospace, then use \tt. % \def\key#1{{\setupmarkupstyle{key}% \nohyphenation \ifmonospace\else\tt\fi #1}\null} % ctrl is no longer a Texinfo command. \def\ctrl #1{{\tt \rawbackslash \hat}#1} % @file, @option are the same as @samp. \let\file=\samp \let\option=\samp % @code is a modification of @t, % which makes spaces the same size as normal in the surrounding text. \def\tclose#1{% {% % Change normal interword space to be same as for the current font. \spaceskip = \fontdimen2\font % % Switch to typewriter. \tt % % But `\ ' produces the large typewriter interword space. \def\ {{\spaceskip = 0pt{} }}% % % Turn off hyphenation. \nohyphenation % \rawbackslash \plainfrenchspacing #1% }% \null } % We *must* turn on hyphenation at `-' and `_' in @code. % Otherwise, it is too hard to avoid overfull hboxes % in the Emacs manual, the Library manual, etc. % Unfortunately, TeX uses one parameter (\hyphenchar) to control % both hyphenation at - and hyphenation within words. % We must therefore turn them both off (\tclose does that) % and arrange explicitly to hyphenate at a dash. % -- rms. { \catcode`\-=\active \catcode`\_=\active \catcode`\'=\active \catcode`\`=\active \global\let'=\rq \global\let`=\lq % default definitions % \global\def\code{\begingroup \setupmarkupstyle{code}% % The following should really be moved into \setupmarkupstyle handlers. \catcode\dashChar=\active \catcode\underChar=\active \ifallowcodebreaks \let-\codedash \let_\codeunder \else \let-\realdash \let_\realunder \fi \codex } } \def\realdash{-} \def\codedash{-\discretionary{}{}{}} \def\codeunder{% % this is all so @math{@code{var_name}+1} can work. In math mode, _ % is "active" (mathcode"8000) and \normalunderscore (or \char95, etc.) % will therefore expand the active definition of _, which is us % (inside @code that is), therefore an endless loop. \ifusingtt{\ifmmode \mathchar"075F % class 0=ordinary, family 7=ttfam, pos 0x5F=_. \else\normalunderscore \fi \discretionary{}{}{}}% {\_}% } \def\codex #1{\tclose{#1}\endgroup} % An additional complication: the above will allow breaks after, e.g., % each of the four underscores in __typeof__. This is undesirable in % some manuals, especially if they don't have long identifiers in % general. @allowcodebreaks provides a way to control this. % \newif\ifallowcodebreaks \allowcodebreakstrue \def\keywordtrue{true} \def\keywordfalse{false} \parseargdef\allowcodebreaks{% \def\txiarg{#1}% \ifx\txiarg\keywordtrue \allowcodebreakstrue \else\ifx\txiarg\keywordfalse \allowcodebreaksfalse \else \errhelp = \EMsimple \errmessage{Unknown @allowcodebreaks option `\txiarg'}% \fi\fi } % @kbd is like @code, except that if the argument is just one @key command, % then @kbd has no effect. \def\kbd#1{{\setupmarkupstyle{kbd}\def\look{#1}\expandafter\kbdfoo\look??\par}} % @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always), % `example' (@kbd uses ttsl only inside of @example and friends), % or `code' (@kbd uses normal tty font always). \parseargdef\kbdinputstyle{% \def\txiarg{#1}% \ifx\txiarg\worddistinct \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}% \else\ifx\txiarg\wordexample \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}% \else\ifx\txiarg\wordcode \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}% \else \errhelp = \EMsimple \errmessage{Unknown @kbdinputstyle option `\txiarg'}% \fi\fi\fi } \def\worddistinct{distinct} \def\wordexample{example} \def\wordcode{code} % Default is `distinct'. \kbdinputstyle distinct \def\xkey{\key} \def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}% \ifx\one\xkey\ifx\threex\three \key{#2}% \else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi \else{\tclose{\kbdfont\setupmarkupstyle{kbd}\look}}\fi} % For @indicateurl, @env, @command quotes seem unnecessary, so use \code. \let\indicateurl=\code \let\env=\code \let\command=\code % @clicksequence{File @click{} Open ...} \def\clicksequence#1{\begingroup #1\endgroup} % @clickstyle @arrow (by default) \parseargdef\clickstyle{\def\click{#1}} \def\click{\arrow} % @uref (abbreviation for `urlref') takes an optional (comma-separated) % second argument specifying the text to display and an optional third % arg as text to display instead of (rather than in addition to) the url % itself. First (mandatory) arg is the url. Perhaps eventually put in % a hypertex \special here. % \def\uref#1{\douref #1,,,\finish} \def\douref#1,#2,#3,#4\finish{\begingroup \unsepspaces \pdfurl{#1}% \setbox0 = \hbox{\ignorespaces #3}% \ifdim\wd0 > 0pt \unhbox0 % third arg given, show only that \else \setbox0 = \hbox{\ignorespaces #2}% \ifdim\wd0 > 0pt \ifpdf \unhbox0 % PDF: 2nd arg given, show only it \else \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url \fi \else \code{#1}% only url given, so show it \fi \fi \endlink \endgroup} % @url synonym for @uref, since that's how everyone uses it. % \let\url=\uref % rms does not like angle brackets --karl, 17may97. % So now @email is just like @uref, unless we are pdf. % %\def\email#1{\angleleft{\tt #1}\angleright} \ifpdf \def\email#1{\doemail#1,,\finish} \def\doemail#1,#2,#3\finish{\begingroup \unsepspaces \pdfurl{mailto:#1}% \setbox0 = \hbox{\ignorespaces #2}% \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi \endlink \endgroup} \else \let\email=\uref \fi % Typeset a dimension, e.g., `in' or `pt'. The only reason for the % argument is to make the input look right: @dmn{pt} instead of @dmn{}pt. % \def\dmn#1{\thinspace #1} % @l was never documented to mean ``switch to the Lisp font'', % and it is not used as such in any manual I can find. We need it for % Polish suppressed-l. --karl, 22sep96. %\def\l#1{{\li #1}\null} % @acronym for "FBI", "NATO", and the like. % We print this one point size smaller, since it's intended for % all-uppercase. % \def\acronym#1{\doacronym #1,,\finish} \def\doacronym#1,#2,#3\finish{% {\selectfonts\lsize #1}% \def\temp{#2}% \ifx\temp\empty \else \space ({\unsepspaces \ignorespaces \temp \unskip})% \fi } % @abbr for "Comput. J." and the like. % No font change, but don't do end-of-sentence spacing. % \def\abbr#1{\doabbr #1,,\finish} \def\doabbr#1,#2,#3\finish{% {\plainfrenchspacing #1}% \def\temp{#2}% \ifx\temp\empty \else \space ({\unsepspaces \ignorespaces \temp \unskip})% \fi } \message{glyphs,} % @point{}, @result{}, @expansion{}, @print{}, @equiv{}. % % Since these characters are used in examples, they should be an even number of % \tt widths. Each \tt character is 1en, so two makes it 1em. % \def\point{$\star$} \def\arrow{\leavevmode\raise.05ex\hbox to 1em{\hfil$\rightarrow$\hfil}} \def\result{\leavevmode\raise.05ex\hbox to 1em{\hfil$\Rightarrow$\hfil}} \def\expansion{\leavevmode\hbox to 1em{\hfil$\mapsto$\hfil}} \def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}} \def\equiv{\leavevmode\hbox to 1em{\hfil$\ptexequiv$\hfil}} % The @error{} command. % Adapted from the TeXbook's \boxit. % \newbox\errorbox % {\tentt \global\dimen0 = 3em}% Width of the box. \dimen2 = .55pt % Thickness of rules % The text. (`r' is open on the right, `e' somewhat less so on the left.) \setbox0 = \hbox{\kern-.75pt \reducedsf error\kern-1.5pt} % \setbox\errorbox=\hbox to \dimen0{\hfil \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right. \advance\hsize by -2\dimen2 % Rules. \vbox{% \hrule height\dimen2 \hbox{\vrule width\dimen2 \kern3pt % Space to left of text. \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below. \kern3pt\vrule width\dimen2}% Space to right. \hrule height\dimen2} \hfil} % \def\error{\leavevmode\lower.7ex\copy\errorbox} % @pounds{} is a sterling sign, which Knuth put in the CM italic font. % \def\pounds{{\it\$}} % @euro{} comes from a separate font, depending on the current style. % We use the free feym* fonts from the eurosym package by Henrik % Theiling, which support regular, slanted, bold and bold slanted (and % "outlined" (blackboard board, sort of) versions, which we don't need). % It is available from http://www.ctan.org/tex-archive/fonts/eurosym. % % Although only regular is the truly official Euro symbol, we ignore % that. The Euro is designed to be slightly taller than the regular % font height. % % feymr - regular % feymo - slanted % feybr - bold % feybo - bold slanted % % There is no good (free) typewriter version, to my knowledge. % A feymr10 euro is ~7.3pt wide, while a normal cmtt10 char is ~5.25pt wide. % Hmm. % % Also doesn't work in math. Do we need to do math with euro symbols? % Hope not. % % \def\euro{{\eurofont e}} \def\eurofont{% % We set the font at each command, rather than predefining it in % \textfonts and the other font-switching commands, so that % installations which never need the symbol don't have to have the % font installed. % % There is only one designed size (nominal 10pt), so we always scale % that to the current nominal size. % % By the way, simply using "at 1em" works for cmr10 and the like, but % does not work for cmbx10 and other extended/shrunken fonts. % \def\eurosize{\csname\curfontsize nominalsize\endcsname}% % \ifx\curfontstyle\bfstylename % bold: \font\thiseurofont = \ifusingit{feybo10}{feybr10} at \eurosize \else % regular: \font\thiseurofont = \ifusingit{feymo10}{feymr10} at \eurosize \fi \thiseurofont } % Glyphs from the EC fonts. We don't use \let for the aliases, because % sometimes we redefine the original macro, and the alias should reflect % the redefinition. % % Use LaTeX names for the Icelandic letters. \def\DH{{\ecfont \char"D0}} % Eth \def\dh{{\ecfont \char"F0}} % eth \def\TH{{\ecfont \char"DE}} % Thorn \def\th{{\ecfont \char"FE}} % thorn % \def\guillemetleft{{\ecfont \char"13}} \def\guillemotleft{\guillemetleft} \def\guillemetright{{\ecfont \char"14}} \def\guillemotright{\guillemetright} \def\guilsinglleft{{\ecfont \char"0E}} \def\guilsinglright{{\ecfont \char"0F}} \def\quotedblbase{{\ecfont \char"12}} \def\quotesinglbase{{\ecfont \char"0D}} % % This positioning is not perfect (see the ogonek LaTeX package), but % we have the precomposed glyphs for the most common cases. We put the % tests to use those glyphs in the single \ogonek macro so we have fewer % dummy definitions to worry about for index entries, etc. % % ogonek is also used with other letters in Lithuanian (IOU), but using % the precomposed glyphs for those is not so easy since they aren't in % the same EC font. \def\ogonek#1{{% \def\temp{#1}% \ifx\temp\macrocharA\Aogonek \else\ifx\temp\macrochara\aogonek \else\ifx\temp\macrocharE\Eogonek \else\ifx\temp\macrochare\eogonek \else \ecfont \setbox0=\hbox{#1}% \ifdim\ht0=1ex\accent"0C #1% \else\ooalign{\unhbox0\crcr\hidewidth\char"0C \hidewidth}% \fi \fi\fi\fi\fi }% } \def\Aogonek{{\ecfont \char"81}}\def\macrocharA{A} \def\aogonek{{\ecfont \char"A1}}\def\macrochara{a} \def\Eogonek{{\ecfont \char"86}}\def\macrocharE{E} \def\eogonek{{\ecfont \char"A6}}\def\macrochare{e} % % Use the ec* fonts (cm-super in outline format) for non-CM glyphs. \def\ecfont{% % We can't distinguish serif/sans and italic/slanted, but this % is used for crude hacks anyway (like adding French and German % quotes to documents typeset with CM, where we lose kerning), so % hopefully nobody will notice/care. \edef\ecsize{\csname\curfontsize ecsize\endcsname}% \edef\nominalsize{\csname\curfontsize nominalsize\endcsname}% \ifx\curfontstyle\bfstylename % bold: \font\thisecfont = ecb\ifusingit{i}{x}\ecsize \space at \nominalsize \else % regular: \font\thisecfont = ec\ifusingit{ti}{rm}\ecsize \space at \nominalsize \fi \thisecfont } % @registeredsymbol - R in a circle. The font for the R should really % be smaller yet, but lllsize is the best we can do for now. % Adapted from the plain.tex definition of \copyright. % \def\registeredsymbol{% $^{{\ooalign{\hfil\raise.07ex\hbox{\selectfonts\lllsize R}% \hfil\crcr\Orb}}% }$% } % @textdegree - the normal degrees sign. % \def\textdegree{$^\circ$} % Laurent Siebenmann reports \Orb undefined with: % Textures 1.7.7 (preloaded format=plain 93.10.14) (68K) 16 APR 2004 02:38 % so we'll define it if necessary. % \ifx\Orb\undefined \def\Orb{\mathhexbox20D} \fi % Quotes. \chardef\quotedblleft="5C \chardef\quotedblright=`\" \chardef\quoteleft=`\` \chardef\quoteright=`\' \message{page headings,} \newskip\titlepagetopglue \titlepagetopglue = 1.5in \newskip\titlepagebottomglue \titlepagebottomglue = 2pc % First the title page. Must do @settitle before @titlepage. \newif\ifseenauthor \newif\iffinishedtitlepage % Do an implicit @contents or @shortcontents after @end titlepage if the % user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage. % \newif\ifsetcontentsaftertitlepage \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue \newif\ifsetshortcontentsaftertitlepage \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue \parseargdef\shorttitlepage{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}% \endgroup\page\hbox{}\page} \envdef\titlepage{% % Open one extra group, as we want to close it in the middle of \Etitlepage. \begingroup \parindent=0pt \textfonts % Leave some space at the very top of the page. \vglue\titlepagetopglue % No rule at page bottom unless we print one at the top with @title. \finishedtitlepagetrue % % Most title ``pages'' are actually two pages long, with space % at the top of the second. We don't want the ragged left on the second. \let\oldpage = \page \def\page{% \iffinishedtitlepage\else \finishtitlepage \fi \let\page = \oldpage \page \null }% } \def\Etitlepage{% \iffinishedtitlepage\else \finishtitlepage \fi % It is important to do the page break before ending the group, % because the headline and footline are only empty inside the group. % If we use the new definition of \page, we always get a blank page % after the title page, which we certainly don't want. \oldpage \endgroup % % Need this before the \...aftertitlepage checks so that if they are % in effect the toc pages will come out with page numbers. \HEADINGSon % % If they want short, they certainly want long too. \ifsetshortcontentsaftertitlepage \shortcontents \contents \global\let\shortcontents = \relax \global\let\contents = \relax \fi % \ifsetcontentsaftertitlepage \contents \global\let\contents = \relax \global\let\shortcontents = \relax \fi } \def\finishtitlepage{% \vskip4pt \hrule height 2pt width \hsize \vskip\titlepagebottomglue \finishedtitlepagetrue } %%% Macros to be used within @titlepage: \let\subtitlerm=\tenrm \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines} \parseargdef\title{% \checkenv\titlepage \leftline{\titlefonts\rmisbold #1} % print a rule at the page bottom also. \finishedtitlepagefalse \vskip4pt \hrule height 4pt width \hsize \vskip4pt } \parseargdef\subtitle{% \checkenv\titlepage {\subtitlefont \rightline{#1}}% } % @author should come last, but may come many times. % It can also be used inside @quotation. % \parseargdef\author{% \def\temp{\quotation}% \ifx\thisenv\temp \def\quotationauthor{#1}% printed in \Equotation. \else \checkenv\titlepage \ifseenauthor\else \vskip 0pt plus 1filll \seenauthortrue \fi {\secfonts\rmisbold \leftline{#1}}% \fi } %%% Set up page headings and footings. \let\thispage=\folio \newtoks\evenheadline % headline on even pages \newtoks\oddheadline % headline on odd pages \newtoks\evenfootline % footline on even pages \newtoks\oddfootline % footline on odd pages % Now make TeX use those variables \headline={{\textfonts\rm \ifodd\pageno \the\oddheadline \else \the\evenheadline \fi}} \footline={{\textfonts\rm \ifodd\pageno \the\oddfootline \else \the\evenfootline \fi}\HEADINGShook} \let\HEADINGShook=\relax % Commands to set those variables. % For example, this is what @headings on does % @evenheading @thistitle|@thispage|@thischapter % @oddheading @thischapter|@thispage|@thistitle % @evenfooting @thisfile|| % @oddfooting ||@thisfile \def\evenheading{\parsearg\evenheadingxxx} \def\evenheadingxxx #1{\evenheadingyyy #1\|\|\|\|\finish} \def\evenheadingyyy #1\|#2\|#3\|#4\finish{% \global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} \def\oddheading{\parsearg\oddheadingxxx} \def\oddheadingxxx #1{\oddheadingyyy #1\|\|\|\|\finish} \def\oddheadingyyy #1\|#2\|#3\|#4\finish{% \global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} \parseargdef\everyheading{\oddheadingxxx{#1}\evenheadingxxx{#1}}% \def\evenfooting{\parsearg\evenfootingxxx} \def\evenfootingxxx #1{\evenfootingyyy #1\|\|\|\|\finish} \def\evenfootingyyy #1\|#2\|#3\|#4\finish{% \global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}} \def\oddfooting{\parsearg\oddfootingxxx} \def\oddfootingxxx #1{\oddfootingyyy #1\|\|\|\|\finish} \def\oddfootingyyy #1\|#2\|#3\|#4\finish{% \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}% % % Leave some space for the footline. Hopefully ok to assume % @evenfooting will not be used by itself. \global\advance\pageheight by -12pt \global\advance\vsize by -12pt } \parseargdef\everyfooting{\oddfootingxxx{#1}\evenfootingxxx{#1}} % @evenheadingmarks top \thischapter <- chapter at the top of a page % @evenheadingmarks bottom \thischapter <- chapter at the bottom of a page % % The same set of arguments for: % % @oddheadingmarks % @evenfootingmarks % @oddfootingmarks % @everyheadingmarks % @everyfootingmarks \def\evenheadingmarks{\headingmarks{even}{heading}} \def\oddheadingmarks{\headingmarks{odd}{heading}} \def\evenfootingmarks{\headingmarks{even}{footing}} \def\oddfootingmarks{\headingmarks{odd}{footing}} \def\everyheadingmarks#1 {\headingmarks{even}{heading}{#1} \headingmarks{odd}{heading}{#1} } \def\everyfootingmarks#1 {\headingmarks{even}{footing}{#1} \headingmarks{odd}{footing}{#1} } % #1 = even/odd, #2 = heading/footing, #3 = top/bottom. \def\headingmarks#1#2#3 {% \expandafter\let\expandafter\temp \csname get#3headingmarks\endcsname \global\expandafter\let\csname get#1#2marks\endcsname \temp } \everyheadingmarks bottom \everyfootingmarks bottom % @headings double turns headings on for double-sided printing. % @headings single turns headings on for single-sided printing. % @headings off turns them off. % @headings on same as @headings double, retained for compatibility. % @headings after turns on double-sided headings after this page. % @headings doubleafter turns on double-sided headings after this page. % @headings singleafter turns on single-sided headings after this page. % By default, they are off at the start of a document, % and turned `on' after @end titlepage. \def\headings #1 {\csname HEADINGS#1\endcsname} \def\HEADINGSoff{% \global\evenheadline={\hfil} \global\evenfootline={\hfil} \global\oddheadline={\hfil} \global\oddfootline={\hfil}} \HEADINGSoff % When we turn headings on, set the page number to 1. % For double-sided printing, put current file name in lower left corner, % chapter name on inside top of right hand pages, document % title on inside top of left hand pages, and page numbers on outside top % edge of all pages. \def\HEADINGSdouble{% \global\pageno=1 \global\evenfootline={\hfil} \global\oddfootline={\hfil} \global\evenheadline={\line{\folio\hfil\thistitle}} \global\oddheadline={\line{\thischapter\hfil\folio}} \global\let\contentsalignmacro = \chapoddpage } \let\contentsalignmacro = \chappager % For single-sided printing, chapter title goes across top left of page, % page number on top right. \def\HEADINGSsingle{% \global\pageno=1 \global\evenfootline={\hfil} \global\oddfootline={\hfil} \global\evenheadline={\line{\thischapter\hfil\folio}} \global\oddheadline={\line{\thischapter\hfil\folio}} \global\let\contentsalignmacro = \chappager } \def\HEADINGSon{\HEADINGSdouble} \def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex} \let\HEADINGSdoubleafter=\HEADINGSafter \def\HEADINGSdoublex{% \global\evenfootline={\hfil} \global\oddfootline={\hfil} \global\evenheadline={\line{\folio\hfil\thistitle}} \global\oddheadline={\line{\thischapter\hfil\folio}} \global\let\contentsalignmacro = \chapoddpage } \def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex} \def\HEADINGSsinglex{% \global\evenfootline={\hfil} \global\oddfootline={\hfil} \global\evenheadline={\line{\thischapter\hfil\folio}} \global\oddheadline={\line{\thischapter\hfil\folio}} \global\let\contentsalignmacro = \chappager } % Subroutines used in generating headings % This produces Day Month Year style of output. % Only define if not already defined, in case a txi-??.tex file has set % up a different format (e.g., txi-cs.tex does this). \ifx\today\undefined \def\today{% \number\day\space \ifcase\month \or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr \or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug \or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec \fi \space\number\year} \fi % @settitle line... specifies the title of the document, for headings. % It generates no output of its own. \def\thistitle{\putwordNoTitle} \def\settitle{\parsearg{\gdef\thistitle}} \message{tables,} % Tables -- @table, @ftable, @vtable, @item(x). % default indentation of table text \newdimen\tableindent \tableindent=.8in % default indentation of @itemize and @enumerate text \newdimen\itemindent \itemindent=.3in % margin between end of table item and start of table text. \newdimen\itemmargin \itemmargin=.1in % used internally for \itemindent minus \itemmargin \newdimen\itemmax % Note @table, @ftable, and @vtable define @item, @itemx, etc., with % these defs. % They also define \itemindex % to index the item name in whatever manner is desired (perhaps none). \newif\ifitemxneedsnegativevskip \def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi} \def\internalBitem{\smallbreak \parsearg\itemzzz} \def\internalBitemx{\itemxpar \parsearg\itemzzz} \def\itemzzz #1{\begingroup % \advance\hsize by -\rightskip \advance\hsize by -\tableindent \setbox0=\hbox{\itemindicate{#1}}% \itemindex{#1}% \nobreak % This prevents a break before @itemx. % % If the item text does not fit in the space we have, put it on a line % by itself, and do not allow a page break either before or after that % line. We do not start a paragraph here because then if the next % command is, e.g., @kindex, the whatsit would get put into the % horizontal list on a line by itself, resulting in extra blank space. \ifdim \wd0>\itemmax % % Make this a paragraph so we get the \parskip glue and wrapping, % but leave it ragged-right. \begingroup \advance\leftskip by-\tableindent \advance\hsize by\tableindent \advance\rightskip by0pt plus1fil \leavevmode\unhbox0\par \endgroup % % We're going to be starting a paragraph, but we don't want the % \parskip glue -- logically it's part of the @item we just started. \nobreak \vskip-\parskip % % Stop a page break at the \parskip glue coming up. However, if % what follows is an environment such as @example, there will be no % \parskip glue; then the negative vskip we just inserted would % cause the example and the item to crash together. So we use this % bizarre value of 10001 as a signal to \aboveenvbreak to insert % \parskip glue after all. Section titles are handled this way also. % \penalty 10001 \endgroup \itemxneedsnegativevskipfalse \else % The item text fits into the space. Start a paragraph, so that the % following text (if any) will end up on the same line. \noindent % Do this with kerns and \unhbox so that if there is a footnote in % the item text, it can migrate to the main vertical list and % eventually be printed. \nobreak\kern-\tableindent \dimen0 = \itemmax \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0 \unhbox0 \nobreak\kern\dimen0 \endgroup \itemxneedsnegativevskiptrue \fi } \def\item{\errmessage{@item while not in a list environment}} \def\itemx{\errmessage{@itemx while not in a list environment}} % @table, @ftable, @vtable. \envdef\table{% \let\itemindex\gobble \tablecheck{table}% } \envdef\ftable{% \def\itemindex ##1{\doind {fn}{\code{##1}}}% \tablecheck{ftable}% } \envdef\vtable{% \def\itemindex ##1{\doind {vr}{\code{##1}}}% \tablecheck{vtable}% } \def\tablecheck#1{% \ifnum \the\catcode`\^^M=\active \endgroup \errmessage{This command won't work in this context; perhaps the problem is that we are \inenvironment\thisenv}% \def\next{\doignore{#1}}% \else \let\next\tablex \fi \next } \def\tablex#1{% \def\itemindicate{#1}% \parsearg\tabley } \def\tabley#1{% {% \makevalueexpandable \edef\temp{\noexpand\tablez #1\space\space\space}% \expandafter }\temp \endtablez } \def\tablez #1 #2 #3 #4\endtablez{% \aboveenvbreak \ifnum 0#1>0 \advance \leftskip by #1\mil \fi \ifnum 0#2>0 \tableindent=#2\mil \fi \ifnum 0#3>0 \advance \rightskip by #3\mil \fi \itemmax=\tableindent \advance \itemmax by -\itemmargin \advance \leftskip by \tableindent \exdentamount=\tableindent \parindent = 0pt \parskip = \smallskipamount \ifdim \parskip=0pt \parskip=2pt \fi \let\item = \internalBitem \let\itemx = \internalBitemx } \def\Etable{\endgraf\afterenvbreak} \let\Eftable\Etable \let\Evtable\Etable \let\Eitemize\Etable \let\Eenumerate\Etable % This is the counter used by @enumerate, which is really @itemize \newcount \itemno \envdef\itemize{\parsearg\doitemize} \def\doitemize#1{% \aboveenvbreak \itemmax=\itemindent \advance\itemmax by -\itemmargin \advance\leftskip by \itemindent \exdentamount=\itemindent \parindent=0pt \parskip=\smallskipamount \ifdim\parskip=0pt \parskip=2pt \fi % % Try typesetting the item mark that if the document erroneously says % something like @itemize @samp (intending @table), there's an error % right away at the @itemize. It's not the best error message in the % world, but it's better than leaving it to the @item. This means if % the user wants an empty mark, they have to say @w{} not just @w. \def\itemcontents{#1}% \setbox0 = \hbox{\itemcontents}% % % @itemize with no arg is equivalent to @itemize @bullet. \ifx\itemcontents\empty\def\itemcontents{\bullet}\fi % \let\item=\itemizeitem } % Definition of @item while inside @itemize and @enumerate. % \def\itemizeitem{% \advance\itemno by 1 % for enumerations {\let\par=\endgraf \smallbreak}% reasonable place to break {% % If the document has an @itemize directly after a section title, a % \nobreak will be last on the list, and \sectionheading will have % done a \vskip-\parskip. In that case, we don't want to zero % parskip, or the item text will crash with the heading. On the % other hand, when there is normal text preceding the item (as there % usually is), we do want to zero parskip, or there would be too much % space. In that case, we won't have a \nobreak before. At least % that's the theory. \ifnum\lastpenalty<10000 \parskip=0in \fi \noindent \hbox to 0pt{\hss \itemcontents \kern\itemmargin}% % \vadjust{\penalty 1200}}% not good to break after first line of item. \flushcr } % \splitoff TOKENS\endmark defines \first to be the first token in % TOKENS, and \rest to be the remainder. % \def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}% % Allow an optional argument of an uppercase letter, lowercase letter, % or number, to specify the first label in the enumerated list. No % argument is the same as `1'. % \envparseargdef\enumerate{\enumeratey #1 \endenumeratey} \def\enumeratey #1 #2\endenumeratey{% % If we were given no argument, pretend we were given `1'. \def\thearg{#1}% \ifx\thearg\empty \def\thearg{1}\fi % % Detect if the argument is a single token. If so, it might be a % letter. Otherwise, the only valid thing it can be is a number. % (We will always have one token, because of the test we just made. % This is a good thing, since \splitoff doesn't work given nothing at % all -- the first parameter is undelimited.) \expandafter\splitoff\thearg\endmark \ifx\rest\empty % Only one token in the argument. It could still be anything. % A ``lowercase letter'' is one whose \lccode is nonzero. % An ``uppercase letter'' is one whose \lccode is both nonzero, and % not equal to itself. % Otherwise, we assume it's a number. % % We need the \relax at the end of the \ifnum lines to stop TeX from % continuing to look for a . % \ifnum\lccode\expandafter`\thearg=0\relax \numericenumerate % a number (we hope) \else % It's a letter. \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax \lowercaseenumerate % lowercase letter \else \uppercaseenumerate % uppercase letter \fi \fi \else % Multiple tokens in the argument. We hope it's a number. \numericenumerate \fi } % An @enumerate whose labels are integers. The starting integer is % given in \thearg. % \def\numericenumerate{% \itemno = \thearg \startenumeration{\the\itemno}% } % The starting (lowercase) letter is in \thearg. \def\lowercaseenumerate{% \itemno = \expandafter`\thearg \startenumeration{% % Be sure we're not beyond the end of the alphabet. \ifnum\itemno=0 \errmessage{No more lowercase letters in @enumerate; get a bigger alphabet}% \fi \char\lccode\itemno }% } % The starting (uppercase) letter is in \thearg. \def\uppercaseenumerate{% \itemno = \expandafter`\thearg \startenumeration{% % Be sure we're not beyond the end of the alphabet. \ifnum\itemno=0 \errmessage{No more uppercase letters in @enumerate; get a bigger alphabet} \fi \char\uccode\itemno }% } % Call \doitemize, adding a period to the first argument and supplying the % common last two arguments. Also subtract one from the initial value in % \itemno, since @item increments \itemno. % \def\startenumeration#1{% \advance\itemno by -1 \doitemize{#1.}\flushcr } % @alphaenumerate and @capsenumerate are abbreviations for giving an arg % to @enumerate. % \def\alphaenumerate{\enumerate{a}} \def\capsenumerate{\enumerate{A}} \def\Ealphaenumerate{\Eenumerate} \def\Ecapsenumerate{\Eenumerate} % @multitable macros % Amy Hendrickson, 8/18/94, 3/6/96 % % @multitable ... @end multitable will make as many columns as desired. % Contents of each column will wrap at width given in preamble. Width % can be specified either with sample text given in a template line, % or in percent of \hsize, the current width of text on page. % Table can continue over pages but will only break between lines. % To make preamble: % % Either define widths of columns in terms of percent of \hsize: % @multitable @columnfractions .25 .3 .45 % @item ... % % Numbers following @columnfractions are the percent of the total % current hsize to be used for each column. You may use as many % columns as desired. % Or use a template: % @multitable {Column 1 template} {Column 2 template} {Column 3 template} % @item ... % using the widest term desired in each column. % Each new table line starts with @item, each subsequent new column % starts with @tab. Empty columns may be produced by supplying @tab's % with nothing between them for as many times as empty columns are needed, % ie, @tab@tab@tab will produce two empty columns. % @item, @tab do not need to be on their own lines, but it will not hurt % if they are. % Sample multitable: % @multitable {Column 1 template} {Column 2 template} {Column 3 template} % @item first col stuff @tab second col stuff @tab third col % @item % first col stuff % @tab % second col stuff % @tab % third col % @item first col stuff @tab second col stuff % @tab Many paragraphs of text may be used in any column. % % They will wrap at the width determined by the template. % @item@tab@tab This will be in third column. % @end multitable % Default dimensions may be reset by user. % @multitableparskip is vertical space between paragraphs in table. % @multitableparindent is paragraph indent in table. % @multitablecolmargin is horizontal space to be left between columns. % @multitablelinespace is space to leave between table items, baseline % to baseline. % 0pt means it depends on current normal line spacing. % \newskip\multitableparskip \newskip\multitableparindent \newdimen\multitablecolspace \newskip\multitablelinespace \multitableparskip=0pt \multitableparindent=6pt \multitablecolspace=12pt \multitablelinespace=0pt % Macros used to set up halign preamble: % \let\endsetuptable\relax \def\xendsetuptable{\endsetuptable} \let\columnfractions\relax \def\xcolumnfractions{\columnfractions} \newif\ifsetpercent % #1 is the @columnfraction, usually a decimal number like .5, but might % be just 1. We just use it, whatever it is. % \def\pickupwholefraction#1 {% \global\advance\colcount by 1 \expandafter\xdef\csname col\the\colcount\endcsname{#1\hsize}% \setuptable } \newcount\colcount \def\setuptable#1{% \def\firstarg{#1}% \ifx\firstarg\xendsetuptable \let\go = \relax \else \ifx\firstarg\xcolumnfractions \global\setpercenttrue \else \ifsetpercent \let\go\pickupwholefraction \else \global\advance\colcount by 1 \setbox0=\hbox{#1\unskip\space}% Add a normal word space as a % separator; typically that is always in the input, anyway. \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}% \fi \fi \ifx\go\pickupwholefraction % Put the argument back for the \pickupwholefraction call, so % we'll always have a period there to be parsed. \def\go{\pickupwholefraction#1}% \else \let\go = \setuptable \fi% \fi \go } % multitable-only commands. % % @headitem starts a heading row, which we typeset in bold. % Assignments have to be global since we are inside the implicit group % of an alignment entry. \everycr resets \everytab so we don't have to % undo it ourselves. \def\headitemfont{\b}% for people to use in the template row; not changeable \def\headitem{% \checkenv\multitable \crcr \global\everytab={\bf}% can't use \headitemfont since the parsing differs \the\everytab % for the first item }% % % A \tab used to include \hskip1sp. But then the space in a template % line is not enough. That is bad. So let's go back to just `&' until % we again encounter the problem the 1sp was intended to solve. % --karl, nathan@acm.org, 20apr99. \def\tab{\checkenv\multitable &\the\everytab}% % @multitable ... @end multitable definitions: % \newtoks\everytab % insert after every tab. % \envdef\multitable{% \vskip\parskip \startsavinginserts % % @item within a multitable starts a normal row. % We use \def instead of \let so that if one of the multitable entries % contains an @itemize, we don't choke on the \item (seen as \crcr aka % \endtemplate) expanding \doitemize. \def\item{\crcr}% % \tolerance=9500 \hbadness=9500 \setmultitablespacing \parskip=\multitableparskip \parindent=\multitableparindent \overfullrule=0pt \global\colcount=0 % \everycr = {% \noalign{% \global\everytab={}% \global\colcount=0 % Reset the column counter. % Check for saved footnotes, etc. \checkinserts % Keeps underfull box messages off when table breaks over pages. %\filbreak % Maybe so, but it also creates really weird page breaks when the % table breaks over pages. Wouldn't \vfil be better? Wait until the % problem manifests itself, so it can be fixed for real --karl. }% }% % \parsearg\domultitable } \def\domultitable#1{% % To parse everything between @multitable and @item: \setuptable#1 \endsetuptable % % This preamble sets up a generic column definition, which will % be used as many times as user calls for columns. % \vtop will set a single line and will also let text wrap and % continue for many paragraphs if desired. \halign\bgroup &% \global\advance\colcount by 1 \multistrut \vtop{% % Use the current \colcount to find the correct column width: \hsize=\expandafter\csname col\the\colcount\endcsname % % In order to keep entries from bumping into each other % we will add a \leftskip of \multitablecolspace to all columns after % the first one. % % If a template has been used, we will add \multitablecolspace % to the width of each template entry. % % If the user has set preamble in terms of percent of \hsize we will % use that dimension as the width of the column, and the \leftskip % will keep entries from bumping into each other. Table will start at % left margin and final column will justify at right margin. % % Make sure we don't inherit \rightskip from the outer environment. \rightskip=0pt \ifnum\colcount=1 % The first column will be indented with the surrounding text. \advance\hsize by\leftskip \else \ifsetpercent \else % If user has not set preamble in terms of percent of \hsize % we will advance \hsize by \multitablecolspace. \advance\hsize by \multitablecolspace \fi % In either case we will make \leftskip=\multitablecolspace: \leftskip=\multitablecolspace \fi % Ignoring space at the beginning and end avoids an occasional spurious % blank line, when TeX decides to break the line at the space before the % box from the multistrut, so the strut ends up on a line by itself. % For example: % @multitable @columnfractions .11 .89 % @item @code{#} % @tab Legal holiday which is valid in major parts of the whole country. % Is automatically provided with highlighting sequences respectively % marking characters. \noindent\ignorespaces##\unskip\multistrut }\cr } \def\Emultitable{% \crcr \egroup % end the \halign \global\setpercentfalse } \def\setmultitablespacing{% \def\multistrut{\strut}% just use the standard line spacing % % Compute \multitablelinespace (if not defined by user) for use in % \multitableparskip calculation. We used define \multistrut based on % this, but (ironically) that caused the spacing to be off. % See bug-texinfo report from Werner Lemberg, 31 Oct 2004 12:52:20 +0100. \ifdim\multitablelinespace=0pt \setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip \global\advance\multitablelinespace by-\ht0 \fi %% Test to see if parskip is larger than space between lines of %% table. If not, do nothing. %% If so, set to same dimension as multitablelinespace. \ifdim\multitableparskip>\multitablelinespace \global\multitableparskip=\multitablelinespace \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller %% than skip between lines in the table. \fi% \ifdim\multitableparskip=0pt \global\multitableparskip=\multitablelinespace \global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller %% than skip between lines in the table. \fi} \message{conditionals,} % @iftex, @ifnotdocbook, @ifnothtml, @ifnotinfo, @ifnotplaintext, % @ifnotxml always succeed. They currently do nothing; we don't % attempt to check whether the conditionals are properly nested. But we % have to remember that they are conditionals, so that @end doesn't % attempt to close an environment group. % \def\makecond#1{% \expandafter\let\csname #1\endcsname = \relax \expandafter\let\csname iscond.#1\endcsname = 1 } \makecond{iftex} \makecond{ifnotdocbook} \makecond{ifnothtml} \makecond{ifnotinfo} \makecond{ifnotplaintext} \makecond{ifnotxml} % Ignore @ignore, @ifhtml, @ifinfo, and the like. % \def\direntry{\doignore{direntry}} \def\documentdescription{\doignore{documentdescription}} \def\docbook{\doignore{docbook}} \def\html{\doignore{html}} \def\ifdocbook{\doignore{ifdocbook}} \def\ifhtml{\doignore{ifhtml}} \def\ifinfo{\doignore{ifinfo}} \def\ifnottex{\doignore{ifnottex}} \def\ifplaintext{\doignore{ifplaintext}} \def\ifxml{\doignore{ifxml}} \def\ignore{\doignore{ignore}} \def\menu{\doignore{menu}} \def\xml{\doignore{xml}} % Ignore text until a line `@end #1', keeping track of nested conditionals. % % A count to remember the depth of nesting. \newcount\doignorecount \def\doignore#1{\begingroup % Scan in ``verbatim'' mode: \obeylines \catcode`\@ = \other \catcode`\{ = \other \catcode`\} = \other % % Make sure that spaces turn into tokens that match what \doignoretext wants. \spaceisspace % % Count number of #1's that we've seen. \doignorecount = 0 % % Swallow text until we reach the matching `@end #1'. \dodoignore{#1}% } { \catcode`_=11 % We want to use \_STOP_ which cannot appear in texinfo source. \obeylines % % \gdef\dodoignore#1{% % #1 contains the command name as a string, e.g., `ifinfo'. % % Define a command to find the next `@end #1'. \long\def\doignoretext##1^^M@end #1{% \doignoretextyyy##1^^M@#1\_STOP_}% % % And this command to find another #1 command, at the beginning of a % line. (Otherwise, we would consider a line `@c @ifset', for % example, to count as an @ifset for nesting.) \long\def\doignoretextyyy##1^^M@#1##2\_STOP_{\doignoreyyy{##2}\_STOP_}% % % And now expand that command. \doignoretext ^^M% }% } \def\doignoreyyy#1{% \def\temp{#1}% \ifx\temp\empty % Nothing found. \let\next\doignoretextzzz \else % Found a nested condition, ... \advance\doignorecount by 1 \let\next\doignoretextyyy % ..., look for another. % If we're here, #1 ends with ^^M\ifinfo (for example). \fi \next #1% the token \_STOP_ is present just after this macro. } % We have to swallow the remaining "\_STOP_". % \def\doignoretextzzz#1{% \ifnum\doignorecount = 0 % We have just found the outermost @end. \let\next\enddoignore \else % Still inside a nested condition. \advance\doignorecount by -1 \let\next\doignoretext % Look for the next @end. \fi \next } % Finish off ignored text. { \obeylines% % Ignore anything after the last `@end #1'; this matters in verbatim % environments, where otherwise the newline after an ignored conditional % would result in a blank line in the output. \gdef\enddoignore#1^^M{\endgroup\ignorespaces}% } % @set VAR sets the variable VAR to an empty value. % @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE. % % Since we want to separate VAR from REST-OF-LINE (which might be % empty), we can't just use \parsearg; we have to insert a space of our % own to delimit the rest of the line, and then take it out again if we % didn't need it. % We rely on the fact that \parsearg sets \catcode`\ =10. % \parseargdef\set{\setyyy#1 \endsetyyy} \def\setyyy#1 #2\endsetyyy{% {% \makevalueexpandable \def\temp{#2}% \edef\next{\gdef\makecsname{SET#1}}% \ifx\temp\empty \next{}% \else \setzzz#2\endsetzzz \fi }% } % Remove the trailing space \setxxx inserted. \def\setzzz#1 \endsetzzz{\next{#1}} % @clear VAR clears (i.e., unsets) the variable VAR. % \parseargdef\clear{% {% \makevalueexpandable \global\expandafter\let\csname SET#1\endcsname=\relax }% } % @value{foo} gets the text saved in variable foo. \def\value{\begingroup\makevalueexpandable\valuexxx} \def\valuexxx#1{\expandablevalue{#1}\endgroup} { \catcode`\- = \active \catcode`\_ = \active % \gdef\makevalueexpandable{% \let\value = \expandablevalue % We don't want these characters active, ... \catcode`\-=\other \catcode`\_=\other % ..., but we might end up with active ones in the argument if % we're called from @code, as @code{@value{foo-bar_}}, though. % So \let them to their normal equivalents. \let-\realdash \let_\normalunderscore } } % We have this subroutine so that we can handle at least some @value's % properly in indexes (we call \makevalueexpandable in \indexdummies). % The command has to be fully expandable (if the variable is set), since % the result winds up in the index file. This means that if the % variable's value contains other Texinfo commands, it's almost certain % it will fail (although perhaps we could fix that with sufficient work % to do a one-level expansion on the result, instead of complete). % \def\expandablevalue#1{% \expandafter\ifx\csname SET#1\endcsname\relax {[No value for ``#1'']}% \message{Variable `#1', used in @value, is not set.}% \else \csname SET#1\endcsname \fi } % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined % with @set. % % To get special treatment of `@end ifset,' call \makeond and the redefine. % \makecond{ifset} \def\ifset{\parsearg{\doifset{\let\next=\ifsetfail}}} \def\doifset#1#2{% {% \makevalueexpandable \let\next=\empty \expandafter\ifx\csname SET#2\endcsname\relax #1% If not set, redefine \next. \fi \expandafter }\next } \def\ifsetfail{\doignore{ifset}} % @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been % defined with @set, or has been undefined with @clear. % % The `\else' inside the `\doifset' parameter is a trick to reuse the % above code: if the variable is not set, do nothing, if it is set, % then redefine \next to \ifclearfail. % \makecond{ifclear} \def\ifclear{\parsearg{\doifset{\else \let\next=\ifclearfail}}} \def\ifclearfail{\doignore{ifclear}} % @dircategory CATEGORY -- specify a category of the dir file % which this file should belong to. Ignore this in TeX. \let\dircategory=\comment % @defininfoenclose. \let\definfoenclose=\comment \message{indexing,} % Index generation facilities % Define \newwrite to be identical to plain tex's \newwrite % except not \outer, so it can be used within macros and \if's. \edef\newwrite{\makecsname{ptexnewwrite}} % \newindex {foo} defines an index named foo. % It automatically defines \fooindex such that % \fooindex ...rest of line... puts an entry in the index foo. % It also defines \fooindfile to be the number of the output channel for % the file that accumulates this index. The file's extension is foo. % The name of an index should be no more than 2 characters long % for the sake of vms. % \def\newindex#1{% \iflinks \expandafter\newwrite \csname#1indfile\endcsname \openout \csname#1indfile\endcsname \jobname.#1 % Open the file \fi \expandafter\xdef\csname#1index\endcsname{% % Define @#1index \noexpand\doindex{#1}} } % @defindex foo == \newindex{foo} % \def\defindex{\parsearg\newindex} % Define @defcodeindex, like @defindex except put all entries in @code. % \def\defcodeindex{\parsearg\newcodeindex} % \def\newcodeindex#1{% \iflinks \expandafter\newwrite \csname#1indfile\endcsname \openout \csname#1indfile\endcsname \jobname.#1 \fi \expandafter\xdef\csname#1index\endcsname{% \noexpand\docodeindex{#1}}% } % @synindex foo bar makes index foo feed into index bar. % Do this instead of @defindex foo if you don't want it as a separate index. % % @syncodeindex foo bar similar, but put all entries made for index foo % inside @code. % \def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}} \def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}} % #1 is \doindex or \docodeindex, #2 the index getting redefined (foo), % #3 the target index (bar). \def\dosynindex#1#2#3{% % Only do \closeout if we haven't already done it, else we'll end up % closing the target index. \expandafter \ifx\csname donesynindex#2\endcsname \relax % The \closeout helps reduce unnecessary open files; the limit on the % Acorn RISC OS is a mere 16 files. \expandafter\closeout\csname#2indfile\endcsname \expandafter\let\csname donesynindex#2\endcsname = 1 \fi % redefine \fooindfile: \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname \expandafter\let\csname#2indfile\endcsname=\temp % redefine \fooindex: \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}% } % Define \doindex, the driver for all \fooindex macros. % Argument #1 is generated by the calling \fooindex macro, % and it is "foo", the name of the index. % \doindex just uses \parsearg; it calls \doind for the actual work. % This is because \doind is more useful to call from other macros. % There is also \dosubind {index}{topic}{subtopic} % which makes an entry in a two-level index such as the operation index. \def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer} \def\singleindexer #1{\doind{\indexname}{#1}} % like the previous two, but they put @code around the argument. \def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer} \def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}} % Take care of Texinfo commands that can appear in an index entry. % Since there are some commands we want to expand, and others we don't, % we have to laboriously prevent expansion for those that we don't. % \def\indexdummies{% \escapechar = `\\ % use backslash in output files. \def\@{@}% change to @@ when we switch to @ as escape char in index files. \def\ {\realbackslash\space }% % % Need these in case \tex is in effect and \{ is a \delimiter again. % But can't use \lbracecmd and \rbracecmd because texindex assumes % braces and backslashes are used only as delimiters. \let\{ = \mylbrace \let\} = \myrbrace % % I don't entirely understand this, but when an index entry is % generated from a macro call, the \endinput which \scanmacro inserts % causes processing to be prematurely terminated. This is, % apparently, because \indexsorttmp is fully expanded, and \endinput % is an expandable command. The redefinition below makes \endinput % disappear altogether for that purpose -- although logging shows that % processing continues to some further point. On the other hand, it % seems \endinput does not hurt in the printed index arg, since that % is still getting written without apparent harm. % % Sample source (mac-idx3.tex, reported by Graham Percival to % help-texinfo, 22may06): % @macro funindex {WORD} % @findex xyz % @end macro % ... % @funindex commtest % % The above is not enough to reproduce the bug, but it gives the flavor. % % Sample whatsit resulting: % .@write3{\entry{xyz}{@folio }{@code {xyz@endinput }}} % % So: \let\endinput = \empty % % Do the redefinitions. \commondummies } % For the aux and toc files, @ is the escape character. So we want to % redefine everything using @ as the escape character (instead of % \realbackslash, still used for index files). When everything uses @, % this will be simpler. % \def\atdummies{% \def\@{@@}% \def\ {@ }% \let\{ = \lbraceatcmd \let\} = \rbraceatcmd % % Do the redefinitions. \commondummies \otherbackslash } % Called from \indexdummies and \atdummies. % \def\commondummies{% % % \definedummyword defines \#1 as \string\#1\space, thus effectively % preventing its expansion. This is used only for control% words, % not control letters, because the \space would be incorrect for % control characters, but is needed to separate the control word % from whatever follows. % % For control letters, we have \definedummyletter, which omits the % space. % % These can be used both for control words that take an argument and % those that do not. If it is followed by {arg} in the input, then % that will dutifully get written to the index (or wherever). % \def\definedummyword ##1{\def##1{\string##1\space}}% \def\definedummyletter##1{\def##1{\string##1}}% \let\definedummyaccent\definedummyletter % \commondummiesnofonts % \definedummyletter\_% % % Non-English letters. \definedummyword\AA \definedummyword\AE \definedummyword\DH \definedummyword\L \definedummyword\O \definedummyword\OE \definedummyword\TH \definedummyword\aa \definedummyword\ae \definedummyword\dh \definedummyword\exclamdown \definedummyword\l \definedummyword\o \definedummyword\oe \definedummyword\ordf \definedummyword\ordm \definedummyword\questiondown \definedummyword\ss \definedummyword\th % % Although these internal commands shouldn't show up, sometimes they do. \definedummyword\bf \definedummyword\gtr \definedummyword\hat \definedummyword\less \definedummyword\sf \definedummyword\sl \definedummyword\tclose \definedummyword\tt % \definedummyword\LaTeX \definedummyword\TeX % % Assorted special characters. \definedummyword\bullet \definedummyword\comma \definedummyword\copyright \definedummyword\registeredsymbol \definedummyword\dots \definedummyword\enddots \definedummyword\equiv \definedummyword\error \definedummyword\euro \definedummyword\guillemetleft \definedummyword\guillemetright \definedummyword\guilsinglleft \definedummyword\guilsinglright \definedummyword\expansion \definedummyword\minus \definedummyword\ogonek \definedummyword\pounds \definedummyword\point \definedummyword\print \definedummyword\quotedblbase \definedummyword\quotedblleft \definedummyword\quotedblright \definedummyword\quoteleft \definedummyword\quoteright \definedummyword\quotesinglbase \definedummyword\result \definedummyword\textdegree % % We want to disable all macros so that they are not expanded by \write. \macrolist % \normalturnoffactive % % Handle some cases of @value -- where it does not contain any % (non-fully-expandable) commands. \makevalueexpandable } % \commondummiesnofonts: common to \commondummies and \indexnofonts. % \def\commondummiesnofonts{% % Control letters and accents. \definedummyletter\!% \definedummyaccent\"% \definedummyaccent\'% \definedummyletter\*% \definedummyaccent\,% \definedummyletter\.% \definedummyletter\/% \definedummyletter\:% \definedummyaccent\=% \definedummyletter\?% \definedummyaccent\^% \definedummyaccent\`% \definedummyaccent\~% \definedummyword\u \definedummyword\v \definedummyword\H \definedummyword\dotaccent \definedummyword\ogonek \definedummyword\ringaccent \definedummyword\tieaccent \definedummyword\ubaraccent \definedummyword\udotaccent \definedummyword\dotless % % Texinfo font commands. \definedummyword\b \definedummyword\i \definedummyword\r \definedummyword\sc \definedummyword\t % % Commands that take arguments. \definedummyword\acronym \definedummyword\cite \definedummyword\code \definedummyword\command \definedummyword\dfn \definedummyword\email \definedummyword\emph \definedummyword\env \definedummyword\file \definedummyword\kbd \definedummyword\key \definedummyword\math \definedummyword\option \definedummyword\pxref \definedummyword\ref \definedummyword\samp \definedummyword\strong \definedummyword\tie \definedummyword\uref \definedummyword\url \definedummyword\var \definedummyword\verb \definedummyword\w \definedummyword\xref } % \indexnofonts is used when outputting the strings to sort the index % by, and when constructing control sequence names. It eliminates all % control sequences and just writes whatever the best ASCII sort string % would be for a given command (usually its argument). % \def\indexnofonts{% % Accent commands should become @asis. \def\definedummyaccent##1{\let##1\asis}% % We can just ignore other control letters. \def\definedummyletter##1{\let##1\empty}% % Hopefully, all control words can become @asis. \let\definedummyword\definedummyaccent % \commondummiesnofonts % % Don't no-op \tt, since it isn't a user-level command % and is used in the definitions of the active chars like <, >, |, etc. % Likewise with the other plain tex font commands. %\let\tt=\asis % \def\ { }% \def\@{@}% % how to handle braces? \def\_{\normalunderscore}% % % Non-English letters. \def\AA{AA}% \def\AE{AE}% \def\DH{DZZ}% \def\L{L}% \def\OE{OE}% \def\O{O}% \def\TH{ZZZ}% \def\aa{aa}% \def\ae{ae}% \def\dh{dzz}% \def\exclamdown{!}% \def\l{l}% \def\oe{oe}% \def\ordf{a}% \def\ordm{o}% \def\o{o}% \def\questiondown{?}% \def\ss{ss}% \def\th{zzz}% % \def\LaTeX{LaTeX}% \def\TeX{TeX}% % % Assorted special characters. % (The following {} will end up in the sort string, but that's ok.) \def\bullet{bullet}% \def\comma{,}% \def\copyright{copyright}% \def\dots{...}% \def\enddots{...}% \def\equiv{==}% \def\error{error}% \def\euro{euro}% \def\expansion{==>}% \def\guillemetleft{<<}% \def\guillemetright{>>}% \def\guilsinglleft{<}% \def\guilsinglright{>}% \def\minus{-}% \def\point{.}% \def\pounds{pounds}% \def\print{-|}% \def\quotedblbase{"}% \def\quotedblleft{"}% \def\quotedblright{"}% \def\quoteleft{`}% \def\quoteright{'}% \def\quotesinglbase{,}% \def\registeredsymbol{R}% \def\result{=>}% \def\textdegree{o}% % % We need to get rid of all macros, leaving only the arguments (if present). % Of course this is not nearly correct, but it is the best we can do for now. % makeinfo does not expand macros in the argument to @deffn, which ends up % writing an index entry, and texindex isn't prepared for an index sort entry % that starts with \. % % Since macro invocations are followed by braces, we can just redefine them % to take a single TeX argument. The case of a macro invocation that % goes to end-of-line is not handled. % \macrolist } \let\indexbackslash=0 %overridden during \printindex. \let\SETmarginindex=\relax % put index entries in margin (undocumented)? % Most index entries go through here, but \dosubind is the general case. % #1 is the index name, #2 is the entry text. \def\doind#1#2{\dosubind{#1}{#2}{}} % Workhorse for all \fooindexes. % #1 is name of index, #2 is stuff to put there, #3 is subentry -- % empty if called from \doind, as we usually are (the main exception % is with most defuns, which call us directly). % \def\dosubind#1#2#3{% \iflinks {% % Store the main index entry text (including the third arg). \toks0 = {#2}% % If third arg is present, precede it with a space. \def\thirdarg{#3}% \ifx\thirdarg\empty \else \toks0 = \expandafter{\the\toks0 \space #3}% \fi % \edef\writeto{\csname#1indfile\endcsname}% % \safewhatsit\dosubindwrite }% \fi } % Write the entry in \toks0 to the index file: % \def\dosubindwrite{% % Put the index entry in the margin if desired. \ifx\SETmarginindex\relax\else \insert\margin{\hbox{\vrule height8pt depth3pt width0pt \the\toks0}}% \fi % % Remember, we are within a group. \indexdummies % Must do this here, since \bf, etc expand at this stage \def\backslashcurfont{\indexbackslash}% \indexbackslash isn't defined now % so it will be output as is; and it will print as backslash. % % Process the index entry with all font commands turned off, to % get the string to sort by. {\indexnofonts \edef\temp{\the\toks0}% need full expansion \xdef\indexsorttmp{\temp}% }% % % Set up the complete index entry, with both the sort key and % the original text, including any font commands. We write % three arguments to \entry to the .?? file (four in the % subentry case), texindex reduces to two when writing the .??s % sorted result. \edef\temp{% \write\writeto{% \string\entry{\indexsorttmp}{\noexpand\folio}{\the\toks0}}% }% \temp } % Take care of unwanted page breaks/skips around a whatsit: % % If a skip is the last thing on the list now, preserve it % by backing up by \lastskip, doing the \write, then inserting % the skip again. Otherwise, the whatsit generated by the % \write or \pdfdest will make \lastskip zero. The result is that % sequences like this: % @end defun % @tindex whatever % @defun ... % will have extra space inserted, because the \medbreak in the % start of the @defun won't see the skip inserted by the @end of % the previous defun. % % But don't do any of this if we're not in vertical mode. We % don't want to do a \vskip and prematurely end a paragraph. % % Avoid page breaks due to these extra skips, too. % % But wait, there is a catch there: % We'll have to check whether \lastskip is zero skip. \ifdim is not % sufficient for this purpose, as it ignores stretch and shrink parts % of the skip. The only way seems to be to check the textual % representation of the skip. % % The following is almost like \def\zeroskipmacro{0.0pt} except that % the ``p'' and ``t'' characters have catcode \other, not 11 (letter). % \edef\zeroskipmacro{\expandafter\the\csname z@skip\endcsname} % \newskip\whatsitskip \newcount\whatsitpenalty % % ..., ready, GO: % \def\safewhatsit#1{% \ifhmode #1% \else % \lastskip and \lastpenalty cannot both be nonzero simultaneously. \whatsitskip = \lastskip \edef\lastskipmacro{\the\lastskip}% \whatsitpenalty = \lastpenalty % % If \lastskip is nonzero, that means the last item was a % skip. And since a skip is discardable, that means this % -\whatsitskip glue we're inserting is preceded by a % non-discardable item, therefore it is not a potential % breakpoint, therefore no \nobreak needed. \ifx\lastskipmacro\zeroskipmacro \else \vskip-\whatsitskip \fi % #1% % \ifx\lastskipmacro\zeroskipmacro % If \lastskip was zero, perhaps the last item was a penalty, and % perhaps it was >=10000, e.g., a \nobreak. In that case, we want % to re-insert the same penalty (values >10000 are used for various % signals); since we just inserted a non-discardable item, any % following glue (such as a \parskip) would be a breakpoint. For example: % % @deffn deffn-whatever % @vindex index-whatever % Description. % would allow a break between the index-whatever whatsit % and the "Description." paragraph. \ifnum\whatsitpenalty>9999 \penalty\whatsitpenalty \fi \else % On the other hand, if we had a nonzero \lastskip, % this make-up glue would be preceded by a non-discardable item % (the whatsit from the \write), so we must insert a \nobreak. \nobreak\vskip\whatsitskip \fi \fi } % The index entry written in the file actually looks like % \entry {sortstring}{page}{topic} % or % \entry {sortstring}{page}{topic}{subtopic} % The texindex program reads in these files and writes files % containing these kinds of lines: % \initial {c} % before the first topic whose initial is c % \entry {topic}{pagelist} % for a topic that is used without subtopics % \primary {topic} % for the beginning of a topic that is used with subtopics % \secondary {subtopic}{pagelist} % for each subtopic. % Define the user-accessible indexing commands % @findex, @vindex, @kindex, @cindex. \def\findex {\fnindex} \def\kindex {\kyindex} \def\cindex {\cpindex} \def\vindex {\vrindex} \def\tindex {\tpindex} \def\pindex {\pgindex} \def\cindexsub {\begingroup\obeylines\cindexsub} {\obeylines % \gdef\cindexsub "#1" #2^^M{\endgroup % \dosubind{cp}{#2}{#1}}} % Define the macros used in formatting output of the sorted index material. % @printindex causes a particular index (the ??s file) to get printed. % It does not print any chapter heading (usually an @unnumbered). % \parseargdef\printindex{\begingroup \dobreak \chapheadingskip{10000}% % \smallfonts \rm \tolerance = 9500 \plainfrenchspacing \everypar = {}% don't want the \kern\-parindent from indentation suppression. % % See if the index file exists and is nonempty. % Change catcode of @ here so that if the index file contains % \initial {@} % as its first line, TeX doesn't complain about mismatched braces % (because it thinks @} is a control sequence). \catcode`\@ = 11 \openin 1 \jobname.#1s \ifeof 1 % \enddoublecolumns gets confused if there is no text in the index, % and it loses the chapter title and the aux file entries for the % index. The easiest way to prevent this problem is to make sure % there is some text. \putwordIndexNonexistent \else % % If the index file exists but is empty, then \openin leaves \ifeof % false. We have to make TeX try to read something from the file, so % it can discover if there is anything in it. \read 1 to \temp \ifeof 1 \putwordIndexIsEmpty \else % Index files are almost Texinfo source, but we use \ as the escape % character. It would be better to use @, but that's too big a change % to make right now. \def\indexbackslash{\backslashcurfont}% \catcode`\\ = 0 \escapechar = `\\ \begindoublecolumns \input \jobname.#1s \enddoublecolumns \fi \fi \closein 1 \endgroup} % These macros are used by the sorted index file itself. % Change them to control the appearance of the index. \def\initial#1{{% % Some minor font changes for the special characters. \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt % % Remove any glue we may have, we'll be inserting our own. \removelastskip % % We like breaks before the index initials, so insert a bonus. \nobreak \vskip 0pt plus 3\baselineskip \penalty 0 \vskip 0pt plus -3\baselineskip % % Typeset the initial. Making this add up to a whole number of % baselineskips increases the chance of the dots lining up from column % to column. It still won't often be perfect, because of the stretch % we need before each entry, but it's better. % % No shrink because it confuses \balancecolumns. \vskip 1.67\baselineskip plus .5\baselineskip \leftline{\secbf #1}% % Do our best not to break after the initial. \nobreak \vskip .33\baselineskip plus .1\baselineskip }} % \entry typesets a paragraph consisting of the text (#1), dot leaders, and % then page number (#2) flushed to the right margin. It is used for index % and table of contents entries. The paragraph is indented by \leftskip. % % A straightforward implementation would start like this: % \def\entry#1#2{... % But this freezes the catcodes in the argument, and can cause problems to % @code, which sets - active. This problem was fixed by a kludge--- % ``-'' was active throughout whole index, but this isn't really right. % % The right solution is to prevent \entry from swallowing the whole text. % --kasal, 21nov03 \def\entry{% \begingroup % % Start a new paragraph if necessary, so our assignments below can't % affect previous text. \par % % Do not fill out the last line with white space. \parfillskip = 0in % % No extra space above this paragraph. \parskip = 0in % % Do not prefer a separate line ending with a hyphen to fewer lines. \finalhyphendemerits = 0 % % \hangindent is only relevant when the entry text and page number % don't both fit on one line. In that case, bob suggests starting the % dots pretty far over on the line. Unfortunately, a large % indentation looks wrong when the entry text itself is broken across % lines. So we use a small indentation and put up with long leaders. % % \hangafter is reset to 1 (which is the value we want) at the start % of each paragraph, so we need not do anything with that. \hangindent = 2em % % When the entry text needs to be broken, just fill out the first line % with blank space. \rightskip = 0pt plus1fil % % A bit of stretch before each entry for the benefit of balancing % columns. \vskip 0pt plus1pt % % Swallow the left brace of the text (first parameter): \afterassignment\doentry \let\temp = } \def\doentry{% \bgroup % Instead of the swallowed brace. \noindent \aftergroup\finishentry % And now comes the text of the entry. } \def\finishentry#1{% % #1 is the page number. % % The following is kludged to not output a line of dots in the index if % there are no page numbers. The next person who breaks this will be % cursed by a Unix daemon. \setbox\boxA = \hbox{#1}% \ifdim\wd\boxA = 0pt \ % \else % % If we must, put the page number on a line of its own, and fill out % this line with blank space. (The \hfil is overwhelmed with the % fill leaders glue in \indexdotfill if the page number does fit.) \hfil\penalty50 \null\nobreak\indexdotfill % Have leaders before the page number. % % The `\ ' here is removed by the implicit \unskip that TeX does as % part of (the primitive) \par. Without it, a spurious underfull % \hbox ensues. \ifpdf \pdfgettoks#1.% \ \the\toksA \else \ #1% \fi \fi \par \endgroup } % Like plain.tex's \dotfill, except uses up at least 1 em. \def\indexdotfill{\cleaders \hbox{$\mathsurround=0pt \mkern1.5mu.\mkern1.5mu$}\hskip 1em plus 1fill} \def\primary #1{\line{#1\hfil}} \newskip\secondaryindent \secondaryindent=0.5cm \def\secondary#1#2{{% \parfillskip=0in \parskip=0in \hangindent=1in \hangafter=1 \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill \ifpdf \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph. \else #2 \fi \par }} % Define two-column mode, which we use to typeset indexes. % Adapted from the TeXbook, page 416, which is to say, % the manmac.tex format used to print the TeXbook itself. \catcode`\@=11 \newbox\partialpage \newdimen\doublecolumnhsize \def\begindoublecolumns{\begingroup % ended by \enddoublecolumns % Grab any single-column material above us. \output = {% % % Here is a possibility not foreseen in manmac: if we accumulate a % whole lot of material, we might end up calling this \output % routine twice in a row (see the doublecol-lose test, which is % essentially a couple of indexes with @setchapternewpage off). In % that case we just ship out what is in \partialpage with the normal % output routine. Generally, \partialpage will be empty when this % runs and this will be a no-op. See the indexspread.tex test case. \ifvoid\partialpage \else \onepageout{\pagecontents\partialpage}% \fi % \global\setbox\partialpage = \vbox{% % Unvbox the main output page. \unvbox\PAGE \kern-\topskip \kern\baselineskip }% }% \eject % run that output routine to set \partialpage % % Use the double-column output routine for subsequent pages. \output = {\doublecolumnout}% % % Change the page size parameters. We could do this once outside this % routine, in each of @smallbook, @afourpaper, and the default 8.5x11 % format, but then we repeat the same computation. Repeating a couple % of assignments once per index is clearly meaningless for the % execution time, so we may as well do it in one place. % % First we halve the line length, less a little for the gutter between % the columns. We compute the gutter based on the line length, so it % changes automatically with the paper format. The magic constant % below is chosen so that the gutter has the same value (well, +-<1pt) % as it did when we hard-coded it. % % We put the result in a separate register, \doublecolumhsize, so we % can restore it in \pagesofar, after \hsize itself has (potentially) % been clobbered. % \doublecolumnhsize = \hsize \advance\doublecolumnhsize by -.04154\hsize \divide\doublecolumnhsize by 2 \hsize = \doublecolumnhsize % % Double the \vsize as well. (We don't need a separate register here, % since nobody clobbers \vsize.) \vsize = 2\vsize } % The double-column output routine for all double-column pages except % the last. % \def\doublecolumnout{% \splittopskip=\topskip \splitmaxdepth=\maxdepth % Get the available space for the double columns -- the normal % (undoubled) page height minus any material left over from the % previous page. \dimen@ = \vsize \divide\dimen@ by 2 \advance\dimen@ by -\ht\partialpage % % box0 will be the left-hand column, box2 the right. \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@ \onepageout\pagesofar \unvbox255 \penalty\outputpenalty } % % Re-output the contents of the output page -- any previous material, % followed by the two boxes we just split, in box0 and box2. \def\pagesofar{% \unvbox\partialpage % \hsize = \doublecolumnhsize \wd0=\hsize \wd2=\hsize \hbox to\pagewidth{\box0\hfil\box2}% } % % All done with double columns. \def\enddoublecolumns{% % The following penalty ensures that the page builder is exercised % _before_ we change the output routine. This is necessary in the % following situation: % % The last section of the index consists only of a single entry. % Before this section, \pagetotal is less than \pagegoal, so no % break occurs before the last section starts. However, the last % section, consisting of \initial and the single \entry, does not % fit on the page and has to be broken off. Without the following % penalty the page builder will not be exercised until \eject % below, and by that time we'll already have changed the output % routine to the \balancecolumns version, so the next-to-last % double-column page will be processed with \balancecolumns, which % is wrong: The two columns will go to the main vertical list, with % the broken-off section in the recent contributions. As soon as % the output routine finishes, TeX starts reconsidering the page % break. The two columns and the broken-off section both fit on the % page, because the two columns now take up only half of the page % goal. When TeX sees \eject from below which follows the final % section, it invokes the new output routine that we've set after % \balancecolumns below; \onepageout will try to fit the two columns % and the final section into the vbox of \pageheight (see % \pagebody), causing an overfull box. % % Note that glue won't work here, because glue does not exercise the % page builder, unlike penalties (see The TeXbook, pp. 280-281). \penalty0 % \output = {% % Split the last of the double-column material. Leave it on the % current page, no automatic page break. \balancecolumns % % If we end up splitting too much material for the current page, % though, there will be another page break right after this \output % invocation ends. Having called \balancecolumns once, we do not % want to call it again. Therefore, reset \output to its normal % definition right away. (We hope \balancecolumns will never be % called on to balance too much material, but if it is, this makes % the output somewhat more palatable.) \global\output = {\onepageout{\pagecontents\PAGE}}% }% \eject \endgroup % started in \begindoublecolumns % % \pagegoal was set to the doubled \vsize above, since we restarted % the current page. We're now back to normal single-column % typesetting, so reset \pagegoal to the normal \vsize (after the % \endgroup where \vsize got restored). \pagegoal = \vsize } % % Called at the end of the double column material. \def\balancecolumns{% \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120. \dimen@ = \ht0 \advance\dimen@ by \topskip \advance\dimen@ by-\baselineskip \divide\dimen@ by 2 % target to split to %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}% \splittopskip = \topskip % Loop until we get a decent breakpoint. {% \vbadness = 10000 \loop \global\setbox3 = \copy0 \global\setbox1 = \vsplit3 to \dimen@ \ifdim\ht3>\dimen@ \global\advance\dimen@ by 1pt \repeat }% %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}% \setbox0=\vbox to\dimen@{\unvbox1}% \setbox2=\vbox to\dimen@{\unvbox3}% % \pagesofar } \catcode`\@ = \other \message{sectioning,} % Chapters, sections, etc. % \unnumberedno is an oxymoron, of course. But we count the unnumbered % sections so that we can refer to them unambiguously in the pdf % outlines by their "section number". We avoid collisions with chapter % numbers by starting them at 10000. (If a document ever has 10000 % chapters, we're in trouble anyway, I'm sure.) \newcount\unnumberedno \unnumberedno = 10000 \newcount\chapno \newcount\secno \secno=0 \newcount\subsecno \subsecno=0 \newcount\subsubsecno \subsubsecno=0 % This counter is funny since it counts through charcodes of letters A, B, ... \newcount\appendixno \appendixno = `\@ % % \def\appendixletter{\char\the\appendixno} % We do the following ugly conditional instead of the above simple % construct for the sake of pdftex, which needs the actual % letter in the expansion, not just typeset. % \def\appendixletter{% \ifnum\appendixno=`A A% \else\ifnum\appendixno=`B B% \else\ifnum\appendixno=`C C% \else\ifnum\appendixno=`D D% \else\ifnum\appendixno=`E E% \else\ifnum\appendixno=`F F% \else\ifnum\appendixno=`G G% \else\ifnum\appendixno=`H H% \else\ifnum\appendixno=`I I% \else\ifnum\appendixno=`J J% \else\ifnum\appendixno=`K K% \else\ifnum\appendixno=`L L% \else\ifnum\appendixno=`M M% \else\ifnum\appendixno=`N N% \else\ifnum\appendixno=`O O% \else\ifnum\appendixno=`P P% \else\ifnum\appendixno=`Q Q% \else\ifnum\appendixno=`R R% \else\ifnum\appendixno=`S S% \else\ifnum\appendixno=`T T% \else\ifnum\appendixno=`U U% \else\ifnum\appendixno=`V V% \else\ifnum\appendixno=`W W% \else\ifnum\appendixno=`X X% \else\ifnum\appendixno=`Y Y% \else\ifnum\appendixno=`Z Z% % The \the is necessary, despite appearances, because \appendixletter is % expanded while writing the .toc file. \char\appendixno is not % expandable, thus it is written literally, thus all appendixes come out % with the same letter (or @) in the toc without it. \else\char\the\appendixno \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi} % Each @chapter defines these (using marks) as the number+name, number % and name of the chapter. Page headings and footings can use % these. @section does likewise. \def\thischapter{} \def\thischapternum{} \def\thischaptername{} \def\thissection{} \def\thissectionnum{} \def\thissectionname{} \newcount\absseclevel % used to calculate proper heading level \newcount\secbase\secbase=0 % @raisesections/@lowersections modify this count % @raisesections: treat @section as chapter, @subsection as section, etc. \def\raisesections{\global\advance\secbase by -1} \let\up=\raisesections % original BFox name % @lowersections: treat @chapter as section, @section as subsection, etc. \def\lowersections{\global\advance\secbase by 1} \let\down=\lowersections % original BFox name % we only have subsub. \chardef\maxseclevel = 3 % % A numbered section within an unnumbered changes to unnumbered too. % To achive this, remember the "biggest" unnum. sec. we are currently in: \chardef\unmlevel = \maxseclevel % % Trace whether the current chapter is an appendix or not: % \chapheadtype is "N" or "A", unnumbered chapters are ignored. \def\chapheadtype{N} % Choose a heading macro % #1 is heading type % #2 is heading level % #3 is text for heading \def\genhead#1#2#3{% % Compute the abs. sec. level: \absseclevel=#2 \advance\absseclevel by \secbase % Make sure \absseclevel doesn't fall outside the range: \ifnum \absseclevel < 0 \absseclevel = 0 \else \ifnum \absseclevel > 3 \absseclevel = 3 \fi \fi % The heading type: \def\headtype{#1}% \if \headtype U% \ifnum \absseclevel < \unmlevel \chardef\unmlevel = \absseclevel \fi \else % Check for appendix sections: \ifnum \absseclevel = 0 \edef\chapheadtype{\headtype}% \else \if \headtype A\if \chapheadtype N% \errmessage{@appendix... within a non-appendix chapter}% \fi\fi \fi % Check for numbered within unnumbered: \ifnum \absseclevel > \unmlevel \def\headtype{U}% \else \chardef\unmlevel = 3 \fi \fi % Now print the heading: \if \headtype U% \ifcase\absseclevel \unnumberedzzz{#3}% \or \unnumberedseczzz{#3}% \or \unnumberedsubseczzz{#3}% \or \unnumberedsubsubseczzz{#3}% \fi \else \if \headtype A% \ifcase\absseclevel \appendixzzz{#3}% \or \appendixsectionzzz{#3}% \or \appendixsubseczzz{#3}% \or \appendixsubsubseczzz{#3}% \fi \else \ifcase\absseclevel \chapterzzz{#3}% \or \seczzz{#3}% \or \numberedsubseczzz{#3}% \or \numberedsubsubseczzz{#3}% \fi \fi \fi \suppressfirstparagraphindent } % an interface: \def\numhead{\genhead N} \def\apphead{\genhead A} \def\unnmhead{\genhead U} % @chapter, @appendix, @unnumbered. Increment top-level counter, reset % all lower-level sectioning counters to zero. % % Also set \chaplevelprefix, which we prepend to @float sequence numbers % (e.g., figures), q.v. By default (before any chapter), that is empty. \let\chaplevelprefix = \empty % \outer\parseargdef\chapter{\numhead0{#1}} % normally numhead0 calls chapterzzz \def\chapterzzz#1{% % section resetting is \global in case the chapter is in a group, such % as an @include file. \global\secno=0 \global\subsecno=0 \global\subsubsecno=0 \global\advance\chapno by 1 % % Used for \float. \gdef\chaplevelprefix{\the\chapno.}% \resetallfloatnos % % \putwordChapter can contain complex things in translations. \toks0=\expandafter{\putwordChapter}% \message{\the\toks0 \space \the\chapno}% % % Write the actual heading. \chapmacro{#1}{Ynumbered}{\the\chapno}% % % So @section and the like are numbered underneath this chapter. \global\let\section = \numberedsec \global\let\subsection = \numberedsubsec \global\let\subsubsection = \numberedsubsubsec } \outer\parseargdef\appendix{\apphead0{#1}} % normally calls appendixzzz % \def\appendixzzz#1{% \global\secno=0 \global\subsecno=0 \global\subsubsecno=0 \global\advance\appendixno by 1 \gdef\chaplevelprefix{\appendixletter.}% \resetallfloatnos % % \putwordAppendix can contain complex things in translations. \toks0=\expandafter{\putwordAppendix}% \message{\the\toks0 \space \appendixletter}% % \chapmacro{#1}{Yappendix}{\appendixletter}% % \global\let\section = \appendixsec \global\let\subsection = \appendixsubsec \global\let\subsubsection = \appendixsubsubsec } \outer\parseargdef\unnumbered{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz \def\unnumberedzzz#1{% \global\secno=0 \global\subsecno=0 \global\subsubsecno=0 \global\advance\unnumberedno by 1 % % Since an unnumbered has no number, no prefix for figures. \global\let\chaplevelprefix = \empty \resetallfloatnos % % This used to be simply \message{#1}, but TeX fully expands the % argument to \message. Therefore, if #1 contained @-commands, TeX % expanded them. For example, in `@unnumbered The @cite{Book}', TeX % expanded @cite (which turns out to cause errors because \cite is meant % to be executed, not expanded). % % Anyway, we don't want the fully-expanded definition of @cite to appear % as a result of the \message, we just want `@cite' itself. We use % \the to achieve this: TeX expands \the only once, % simply yielding the contents of . (We also do this for % the toc entries.) \toks0 = {#1}% \message{(\the\toks0)}% % \chapmacro{#1}{Ynothing}{\the\unnumberedno}% % \global\let\section = \unnumberedsec \global\let\subsection = \unnumberedsubsec \global\let\subsubsection = \unnumberedsubsubsec } % @centerchap is like @unnumbered, but the heading is centered. \outer\parseargdef\centerchap{% % Well, we could do the following in a group, but that would break % an assumption that \chapmacro is called at the outermost level. % Thus we are safer this way: --kasal, 24feb04 \let\centerparametersmaybe = \centerparameters \unnmhead0{#1}% \let\centerparametersmaybe = \relax } % @top is like @unnumbered. \let\top\unnumbered % Sections. \outer\parseargdef\numberedsec{\numhead1{#1}} % normally calls seczzz \def\seczzz#1{% \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1 \sectionheading{#1}{sec}{Ynumbered}{\the\chapno.\the\secno}% } \outer\parseargdef\appendixsection{\apphead1{#1}} % normally calls appendixsectionzzz \def\appendixsectionzzz#1{% \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1 \sectionheading{#1}{sec}{Yappendix}{\appendixletter.\the\secno}% } \let\appendixsec\appendixsection \outer\parseargdef\unnumberedsec{\unnmhead1{#1}} % normally calls unnumberedseczzz \def\unnumberedseczzz#1{% \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1 \sectionheading{#1}{sec}{Ynothing}{\the\unnumberedno.\the\secno}% } % Subsections. \outer\parseargdef\numberedsubsec{\numhead2{#1}} % normally calls numberedsubseczzz \def\numberedsubseczzz#1{% \global\subsubsecno=0 \global\advance\subsecno by 1 \sectionheading{#1}{subsec}{Ynumbered}{\the\chapno.\the\secno.\the\subsecno}% } \outer\parseargdef\appendixsubsec{\apphead2{#1}} % normally calls appendixsubseczzz \def\appendixsubseczzz#1{% \global\subsubsecno=0 \global\advance\subsecno by 1 \sectionheading{#1}{subsec}{Yappendix}% {\appendixletter.\the\secno.\the\subsecno}% } \outer\parseargdef\unnumberedsubsec{\unnmhead2{#1}} %normally calls unnumberedsubseczzz \def\unnumberedsubseczzz#1{% \global\subsubsecno=0 \global\advance\subsecno by 1 \sectionheading{#1}{subsec}{Ynothing}% {\the\unnumberedno.\the\secno.\the\subsecno}% } % Subsubsections. \outer\parseargdef\numberedsubsubsec{\numhead3{#1}} % normally numberedsubsubseczzz \def\numberedsubsubseczzz#1{% \global\advance\subsubsecno by 1 \sectionheading{#1}{subsubsec}{Ynumbered}% {\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno}% } \outer\parseargdef\appendixsubsubsec{\apphead3{#1}} % normally appendixsubsubseczzz \def\appendixsubsubseczzz#1{% \global\advance\subsubsecno by 1 \sectionheading{#1}{subsubsec}{Yappendix}% {\appendixletter.\the\secno.\the\subsecno.\the\subsubsecno}% } \outer\parseargdef\unnumberedsubsubsec{\unnmhead3{#1}} %normally unnumberedsubsubseczzz \def\unnumberedsubsubseczzz#1{% \global\advance\subsubsecno by 1 \sectionheading{#1}{subsubsec}{Ynothing}% {\the\unnumberedno.\the\secno.\the\subsecno.\the\subsubsecno}% } % These macros control what the section commands do, according % to what kind of chapter we are in (ordinary, appendix, or unnumbered). % Define them by default for a numbered chapter. \let\section = \numberedsec \let\subsection = \numberedsubsec \let\subsubsection = \numberedsubsubsec % Define @majorheading, @heading and @subheading % NOTE on use of \vbox for chapter headings, section headings, and such: % 1) We use \vbox rather than the earlier \line to permit % overlong headings to fold. % 2) \hyphenpenalty is set to 10000 because hyphenation in a % heading is obnoxious; this forbids it. % 3) Likewise, headings look best if no \parindent is used, and % if justification is not attempted. Hence \raggedright. \def\majorheading{% {\advance\chapheadingskip by 10pt \chapbreak }% \parsearg\chapheadingzzz } \def\chapheading{\chapbreak \parsearg\chapheadingzzz} \def\chapheadingzzz#1{% {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 \parindent=0pt\ptexraggedright \rmisbold #1\hfill}}% \bigskip \par\penalty 200\relax \suppressfirstparagraphindent } % @heading, @subheading, @subsubheading. \parseargdef\heading{\sectionheading{#1}{sec}{Yomitfromtoc}{} \suppressfirstparagraphindent} \parseargdef\subheading{\sectionheading{#1}{subsec}{Yomitfromtoc}{} \suppressfirstparagraphindent} \parseargdef\subsubheading{\sectionheading{#1}{subsubsec}{Yomitfromtoc}{} \suppressfirstparagraphindent} % These macros generate a chapter, section, etc. heading only % (including whitespace, linebreaking, etc. around it), % given all the information in convenient, parsed form. %%% Args are the skip and penalty (usually negative) \def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi} %%% Define plain chapter starts, and page on/off switching for it % Parameter controlling skip before chapter headings (if needed) \newskip\chapheadingskip \def\chapbreak{\dobreak \chapheadingskip {-4000}} \def\chappager{\par\vfill\supereject} % Because \domark is called before \chapoddpage, the filler page will % get the headings for the next chapter, which is wrong. But we don't % care -- we just disable all headings on the filler page. \def\chapoddpage{% \chappager \ifodd\pageno \else \begingroup \evenheadline={\hfil}\evenfootline={\hfil}% \oddheadline={\hfil}\oddfootline={\hfil}% \hbox to 0pt{}% \chappager \endgroup \fi } \def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname} \def\CHAPPAGoff{% \global\let\contentsalignmacro = \chappager \global\let\pchapsepmacro=\chapbreak \global\let\pagealignmacro=\chappager} \def\CHAPPAGon{% \global\let\contentsalignmacro = \chappager \global\let\pchapsepmacro=\chappager \global\let\pagealignmacro=\chappager \global\def\HEADINGSon{\HEADINGSsingle}} \def\CHAPPAGodd{% \global\let\contentsalignmacro = \chapoddpage \global\let\pchapsepmacro=\chapoddpage \global\let\pagealignmacro=\chapoddpage \global\def\HEADINGSon{\HEADINGSdouble}} \CHAPPAGon % Chapter opening. % % #1 is the text, #2 is the section type (Ynumbered, Ynothing, % Yappendix, Yomitfromtoc), #3 the chapter number. % % To test against our argument. \def\Ynothingkeyword{Ynothing} \def\Yomitfromtockeyword{Yomitfromtoc} \def\Yappendixkeyword{Yappendix} % \def\chapmacro#1#2#3{% % Insert the first mark before the heading break (see notes for \domark). \let\prevchapterdefs=\lastchapterdefs \let\prevsectiondefs=\lastsectiondefs \gdef\lastsectiondefs{\gdef\thissectionname{}\gdef\thissectionnum{}% \gdef\thissection{}}% % \def\temptype{#2}% \ifx\temptype\Ynothingkeyword \gdef\lastchapterdefs{\gdef\thischaptername{#1}\gdef\thischapternum{}% \gdef\thischapter{\thischaptername}}% \else\ifx\temptype\Yomitfromtockeyword \gdef\lastchapterdefs{\gdef\thischaptername{#1}\gdef\thischapternum{}% \gdef\thischapter{}}% \else\ifx\temptype\Yappendixkeyword \toks0={#1}% \xdef\lastchapterdefs{% \gdef\noexpand\thischaptername{\the\toks0}% \gdef\noexpand\thischapternum{\appendixletter}% % \noexpand\putwordAppendix avoids expanding indigestible % commands in some of the translations. \gdef\noexpand\thischapter{\noexpand\putwordAppendix{} \noexpand\thischapternum: \noexpand\thischaptername}% }% \else \toks0={#1}% \xdef\lastchapterdefs{% \gdef\noexpand\thischaptername{\the\toks0}% \gdef\noexpand\thischapternum{\the\chapno}% % \noexpand\putwordChapter avoids expanding indigestible % commands in some of the translations. \gdef\noexpand\thischapter{\noexpand\putwordChapter{} \noexpand\thischapternum: \noexpand\thischaptername}% }% \fi\fi\fi % % Output the mark. Pass it through \safewhatsit, to take care of % the preceding space. \safewhatsit\domark % % Insert the chapter heading break. \pchapsepmacro % % Now the second mark, after the heading break. No break points % between here and the heading. \let\prevchapterdefs=\lastchapterdefs \let\prevsectiondefs=\lastsectiondefs \domark % {% \chapfonts \rmisbold % % Have to define \lastsection before calling \donoderef, because the % xref code eventually uses it. On the other hand, it has to be called % after \pchapsepmacro, or the headline will change too soon. \gdef\lastsection{#1}% % % Only insert the separating space if we have a chapter/appendix % number, and don't print the unnumbered ``number''. \ifx\temptype\Ynothingkeyword \setbox0 = \hbox{}% \def\toctype{unnchap}% \else\ifx\temptype\Yomitfromtockeyword \setbox0 = \hbox{}% contents like unnumbered, but no toc entry \def\toctype{omit}% \else\ifx\temptype\Yappendixkeyword \setbox0 = \hbox{\putwordAppendix{} #3\enspace}% \def\toctype{app}% \else \setbox0 = \hbox{#3\enspace}% \def\toctype{numchap}% \fi\fi\fi % % Write the toc entry for this chapter. Must come before the % \donoderef, because we include the current node name in the toc % entry, and \donoderef resets it to empty. \writetocentry{\toctype}{#1}{#3}% % % For pdftex, we have to write out the node definition (aka, make % the pdfdest) after any page break, but before the actual text has % been typeset. If the destination for the pdf outline is after the % text, then jumping from the outline may wind up with the text not % being visible, for instance under high magnification. \donoderef{#2}% % % Typeset the actual heading. \nobreak % Avoid page breaks at the interline glue. \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \ptexraggedright \hangindent=\wd0 \centerparametersmaybe \unhbox0 #1\par}% }% \nobreak\bigskip % no page break after a chapter title \nobreak } % @centerchap -- centered and unnumbered. \let\centerparametersmaybe = \relax \def\centerparameters{% \advance\rightskip by 3\rightskip \leftskip = \rightskip \parfillskip = 0pt } % I don't think this chapter style is supported any more, so I'm not % updating it with the new noderef stuff. We'll see. --karl, 11aug03. % \def\setchapterstyle #1 {\csname CHAPF#1\endcsname} % \def\unnchfopen #1{% \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 \parindent=0pt\ptexraggedright \rmisbold #1\hfill}}\bigskip \par\nobreak } \def\chfopen #1#2{\chapoddpage {\chapfonts \vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}% \par\penalty 5000 % } \def\centerchfopen #1{% \chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000 \parindent=0pt \hfill {\rmisbold #1}\hfill}}\bigskip \par\nobreak } \def\CHAPFopen{% \global\let\chapmacro=\chfopen \global\let\centerchapmacro=\centerchfopen} % Section titles. These macros combine the section number parts and % call the generic \sectionheading to do the printing. % \newskip\secheadingskip \def\secheadingbreak{\dobreak \secheadingskip{-1000}} % Subsection titles. \newskip\subsecheadingskip \def\subsecheadingbreak{\dobreak \subsecheadingskip{-500}} % Subsubsection titles. \def\subsubsecheadingskip{\subsecheadingskip} \def\subsubsecheadingbreak{\subsecheadingbreak} % Print any size, any type, section title. % % #1 is the text, #2 is the section level (sec/subsec/subsubsec), #3 is % the section type for xrefs (Ynumbered, Ynothing, Yappendix), #4 is the % section number. % \def\seckeyword{sec} % \def\sectionheading#1#2#3#4{% {% % Switch to the right set of fonts. \csname #2fonts\endcsname \rmisbold % \def\sectionlevel{#2}% \def\temptype{#3}% % % Insert first mark before the heading break (see notes for \domark). \let\prevsectiondefs=\lastsectiondefs \ifx\temptype\Ynothingkeyword \ifx\sectionlevel\seckeyword \gdef\lastsectiondefs{\gdef\thissectionname{#1}\gdef\thissectionnum{}% \gdef\thissection{\thissectionname}}% \fi \else\ifx\temptype\Yomitfromtockeyword % Don't redefine \thissection. \else\ifx\temptype\Yappendixkeyword \ifx\sectionlevel\seckeyword \toks0={#1}% \xdef\lastsectiondefs{% \gdef\noexpand\thissectionname{\the\toks0}% \gdef\noexpand\thissectionnum{#4}% % \noexpand\putwordSection avoids expanding indigestible % commands in some of the translations. \gdef\noexpand\thissection{\noexpand\putwordSection{} \noexpand\thissectionnum: \noexpand\thissectionname}% }% \fi \else \ifx\sectionlevel\seckeyword \toks0={#1}% \xdef\lastsectiondefs{% \gdef\noexpand\thissectionname{\the\toks0}% \gdef\noexpand\thissectionnum{#4}% % \noexpand\putwordSection avoids expanding indigestible % commands in some of the translations. \gdef\noexpand\thissection{\noexpand\putwordSection{} \noexpand\thissectionnum: \noexpand\thissectionname}% }% \fi \fi\fi\fi % % Go into vertical mode. Usually we'll already be there, but we % don't want the following whatsit to end up in a preceding paragraph % if the document didn't happen to have a blank line. \par % % Output the mark. Pass it through \safewhatsit, to take care of % the preceding space. \safewhatsit\domark % % Insert space above the heading. \csname #2headingbreak\endcsname % % Now the second mark, after the heading break. No break points % between here and the heading. \let\prevsectiondefs=\lastsectiondefs \domark % % Only insert the space after the number if we have a section number. \ifx\temptype\Ynothingkeyword \setbox0 = \hbox{}% \def\toctype{unn}% \gdef\lastsection{#1}% \else\ifx\temptype\Yomitfromtockeyword % for @headings -- no section number, don't include in toc, % and don't redefine \lastsection. \setbox0 = \hbox{}% \def\toctype{omit}% \let\sectionlevel=\empty \else\ifx\temptype\Yappendixkeyword \setbox0 = \hbox{#4\enspace}% \def\toctype{app}% \gdef\lastsection{#1}% \else \setbox0 = \hbox{#4\enspace}% \def\toctype{num}% \gdef\lastsection{#1}% \fi\fi\fi % % Write the toc entry (before \donoderef). See comments in \chapmacro. \writetocentry{\toctype\sectionlevel}{#1}{#4}% % % Write the node reference (= pdf destination for pdftex). % Again, see comments in \chapmacro. \donoderef{#3}% % % Interline glue will be inserted when the vbox is completed. % That glue will be a valid breakpoint for the page, since it'll be % preceded by a whatsit (usually from the \donoderef, or from the % \writetocentry if there was no node). We don't want to allow that % break, since then the whatsits could end up on page n while the % section is on page n+1, thus toc/etc. are wrong. Debian bug 276000. \nobreak % % Output the actual section heading. \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \ptexraggedright \hangindent=\wd0 % zero if no section number \unhbox0 #1}% }% % Add extra space after the heading -- half of whatever came above it. % Don't allow stretch, though. \kern .5 \csname #2headingskip\endcsname % % Do not let the kern be a potential breakpoint, as it would be if it % was followed by glue. \nobreak % % We'll almost certainly start a paragraph next, so don't let that % glue accumulate. (Not a breakpoint because it's preceded by a % discardable item.) \vskip-\parskip % % This is purely so the last item on the list is a known \penalty > % 10000. This is so \startdefun can avoid allowing breakpoints after % section headings. Otherwise, it would insert a valid breakpoint between: % % @section sec-whatever % @deffn def-whatever \penalty 10001 } \message{toc,} % Table of contents. \newwrite\tocfile % Write an entry to the toc file, opening it if necessary. % Called from @chapter, etc. % % Example usage: \writetocentry{sec}{Section Name}{\the\chapno.\the\secno} % We append the current node name (if any) and page number as additional % arguments for the \{chap,sec,...}entry macros which will eventually % read this. The node name is used in the pdf outlines as the % destination to jump to. % % We open the .toc file for writing here instead of at @setfilename (or % any other fixed time) so that @contents can be anywhere in the document. % But if #1 is `omit', then we don't do anything. This is used for the % table of contents chapter openings themselves. % \newif\iftocfileopened \def\omitkeyword{omit}% % \def\writetocentry#1#2#3{% \edef\writetoctype{#1}% \ifx\writetoctype\omitkeyword \else \iftocfileopened\else \immediate\openout\tocfile = \jobname.toc \global\tocfileopenedtrue \fi % \iflinks {\atdummies \edef\temp{% \write\tocfile{@#1entry{#2}{#3}{\lastnode}{\noexpand\folio}}}% \temp }% \fi \fi % % Tell \shipout to create a pdf destination on each page, if we're % writing pdf. These are used in the table of contents. We can't % just write one on every page because the title pages are numbered % 1 and 2 (the page numbers aren't printed), and so are the first % two pages of the document. Thus, we'd have two destinations named % `1', and two named `2'. \ifpdf \global\pdfmakepagedesttrue \fi } % These characters do not print properly in the Computer Modern roman % fonts, so we must take special care. This is more or less redundant % with the Texinfo input format setup at the end of this file. % \def\activecatcodes{% \catcode`\"=\active \catcode`\$=\active \catcode`\<=\active \catcode`\>=\active \catcode`\\=\active \catcode`\^=\active \catcode`\_=\active \catcode`\|=\active \catcode`\~=\active } % Read the toc file, which is essentially Texinfo input. \def\readtocfile{% \setupdatafile \activecatcodes \input \tocreadfilename } \newskip\contentsrightmargin \contentsrightmargin=1in \newcount\savepageno \newcount\lastnegativepageno \lastnegativepageno = -1 % Prepare to read what we've written to \tocfile. % \def\startcontents#1{% % If @setchapternewpage on, and @headings double, the contents should % start on an odd page, unlike chapters. Thus, we maintain % \contentsalignmacro in parallel with \pagealignmacro. % From: Torbjorn Granlund \contentsalignmacro \immediate\closeout\tocfile % % Don't need to put `Contents' or `Short Contents' in the headline. % It is abundantly clear what they are. \chapmacro{#1}{Yomitfromtoc}{}% % \savepageno = \pageno \begingroup % Set up to handle contents files properly. \raggedbottom % Worry more about breakpoints than the bottom. \advance\hsize by -\contentsrightmargin % Don't use the full line length. % % Roman numerals for page numbers. \ifnum \pageno>0 \global\pageno = \lastnegativepageno \fi } % redefined for the two-volume lispref. We always output on % \jobname.toc even if this is redefined. % \def\tocreadfilename{\jobname.toc} % Normal (long) toc. % \def\contents{% \startcontents{\putwordTOC}% \openin 1 \tocreadfilename\space \ifeof 1 \else \readtocfile \fi \vfill \eject \contentsalignmacro % in case @setchapternewpage odd is in effect \ifeof 1 \else \pdfmakeoutlines \fi \closein 1 \endgroup \lastnegativepageno = \pageno \global\pageno = \savepageno } % And just the chapters. \def\summarycontents{% \startcontents{\putwordShortTOC}% % \let\numchapentry = \shortchapentry \let\appentry = \shortchapentry \let\unnchapentry = \shortunnchapentry % We want a true roman here for the page numbers. \secfonts \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl \let\tt=\shortconttt \rm \hyphenpenalty = 10000 \advance\baselineskip by 1pt % Open it up a little. \def\numsecentry##1##2##3##4{} \let\appsecentry = \numsecentry \let\unnsecentry = \numsecentry \let\numsubsecentry = \numsecentry \let\appsubsecentry = \numsecentry \let\unnsubsecentry = \numsecentry \let\numsubsubsecentry = \numsecentry \let\appsubsubsecentry = \numsecentry \let\unnsubsubsecentry = \numsecentry \openin 1 \tocreadfilename\space \ifeof 1 \else \readtocfile \fi \closein 1 \vfill \eject \contentsalignmacro % in case @setchapternewpage odd is in effect \endgroup \lastnegativepageno = \pageno \global\pageno = \savepageno } \let\shortcontents = \summarycontents % Typeset the label for a chapter or appendix for the short contents. % The arg is, e.g., `A' for an appendix, or `3' for a chapter. % \def\shortchaplabel#1{% % This space should be enough, since a single number is .5em, and the % widest letter (M) is 1em, at least in the Computer Modern fonts. % But use \hss just in case. % (This space doesn't include the extra space that gets added after % the label; that gets put in by \shortchapentry above.) % % We'd like to right-justify chapter numbers, but that looks strange % with appendix letters. And right-justifying numbers and % left-justifying letters looks strange when there is less than 10 % chapters. Have to read the whole toc once to know how many chapters % there are before deciding ... \hbox to 1em{#1\hss}% } % These macros generate individual entries in the table of contents. % The first argument is the chapter or section name. % The last argument is the page number. % The arguments in between are the chapter number, section number, ... % Chapters, in the main contents. \def\numchapentry#1#2#3#4{\dochapentry{#2\labelspace#1}{#4}} % % Chapters, in the short toc. % See comments in \dochapentry re vbox and related settings. \def\shortchapentry#1#2#3#4{% \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#4\egroup}% } % Appendices, in the main contents. % Need the word Appendix, and a fixed-size box. % \def\appendixbox#1{% % We use M since it's probably the widest letter. \setbox0 = \hbox{\putwordAppendix{} M}% \hbox to \wd0{\putwordAppendix{} #1\hss}} % \def\appentry#1#2#3#4{\dochapentry{\appendixbox{#2}\labelspace#1}{#4}} % Unnumbered chapters. \def\unnchapentry#1#2#3#4{\dochapentry{#1}{#4}} \def\shortunnchapentry#1#2#3#4{\tocentry{#1}{\doshortpageno\bgroup#4\egroup}} % Sections. \def\numsecentry#1#2#3#4{\dosecentry{#2\labelspace#1}{#4}} \let\appsecentry=\numsecentry \def\unnsecentry#1#2#3#4{\dosecentry{#1}{#4}} % Subsections. \def\numsubsecentry#1#2#3#4{\dosubsecentry{#2\labelspace#1}{#4}} \let\appsubsecentry=\numsubsecentry \def\unnsubsecentry#1#2#3#4{\dosubsecentry{#1}{#4}} % And subsubsections. \def\numsubsubsecentry#1#2#3#4{\dosubsubsecentry{#2\labelspace#1}{#4}} \let\appsubsubsecentry=\numsubsubsecentry \def\unnsubsubsecentry#1#2#3#4{\dosubsubsecentry{#1}{#4}} % This parameter controls the indentation of the various levels. % Same as \defaultparindent. \newdimen\tocindent \tocindent = 15pt % Now for the actual typesetting. In all these, #1 is the text and #2 is the % page number. % % If the toc has to be broken over pages, we want it to be at chapters % if at all possible; hence the \penalty. \def\dochapentry#1#2{% \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip \begingroup \chapentryfonts \tocentry{#1}{\dopageno\bgroup#2\egroup}% \endgroup \nobreak\vskip .25\baselineskip plus.1\baselineskip } \def\dosecentry#1#2{\begingroup \secentryfonts \leftskip=\tocindent \tocentry{#1}{\dopageno\bgroup#2\egroup}% \endgroup} \def\dosubsecentry#1#2{\begingroup \subsecentryfonts \leftskip=2\tocindent \tocentry{#1}{\dopageno\bgroup#2\egroup}% \endgroup} \def\dosubsubsecentry#1#2{\begingroup \subsubsecentryfonts \leftskip=3\tocindent \tocentry{#1}{\dopageno\bgroup#2\egroup}% \endgroup} % We use the same \entry macro as for the index entries. \let\tocentry = \entry % Space between chapter (or whatever) number and the title. \def\labelspace{\hskip1em \relax} \def\dopageno#1{{\rm #1}} \def\doshortpageno#1{{\rm #1}} \def\chapentryfonts{\secfonts \rm} \def\secentryfonts{\textfonts} \def\subsecentryfonts{\textfonts} \def\subsubsecentryfonts{\textfonts} \message{environments,} % @foo ... @end foo. % @tex ... @end tex escapes into raw Tex temporarily. % One exception: @ is still an escape character, so that @end tex works. % But \@ or @@ will get a plain tex @ character. \envdef\tex{% \setupmarkupstyle{tex}% \catcode `\\=0 \catcode `\{=1 \catcode `\}=2 \catcode `\$=3 \catcode `\&=4 \catcode `\#=6 \catcode `\^=7 \catcode `\_=8 \catcode `\~=\active \let~=\tie \catcode `\%=14 \catcode `\+=\other \catcode `\"=\other \catcode `\|=\other \catcode `\<=\other \catcode `\>=\other \catcode`\`=\other \catcode`\'=\other \escapechar=`\\ % \let\b=\ptexb \let\bullet=\ptexbullet \let\c=\ptexc \let\,=\ptexcomma \let\.=\ptexdot \let\dots=\ptexdots \let\equiv=\ptexequiv \let\!=\ptexexclam \let\i=\ptexi \let\indent=\ptexindent \let\noindent=\ptexnoindent \let\{=\ptexlbrace \let\+=\tabalign \let\}=\ptexrbrace \let\/=\ptexslash \let\*=\ptexstar \let\t=\ptext \expandafter \let\csname top\endcsname=\ptextop % outer \let\frenchspacing=\plainfrenchspacing % \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}% \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}% \def\@{@}% } % There is no need to define \Etex. % Define @lisp ... @end lisp. % @lisp environment forms a group so it can rebind things, % including the definition of @end lisp (which normally is erroneous). % Amount to narrow the margins by for @lisp. \newskip\lispnarrowing \lispnarrowing=0.4in % This is the definition that ^^M gets inside @lisp, @example, and other % such environments. \null is better than a space, since it doesn't % have any width. \def\lisppar{\null\endgraf} % This space is always present above and below environments. \newskip\envskipamount \envskipamount = 0pt % Make spacing and below environment symmetrical. We use \parskip here % to help in doing that, since in @example-like environments \parskip % is reset to zero; thus the \afterenvbreak inserts no space -- but the % start of the next paragraph will insert \parskip. % \def\aboveenvbreak{{% % =10000 instead of <10000 because of a special case in \itemzzz and % \sectionheading, q.v. \ifnum \lastpenalty=10000 \else \advance\envskipamount by \parskip \endgraf \ifdim\lastskip<\envskipamount \removelastskip % it's not a good place to break if the last penalty was \nobreak % or better ... \ifnum\lastpenalty<10000 \penalty-50 \fi \vskip\envskipamount \fi \fi }} \let\afterenvbreak = \aboveenvbreak % \nonarrowing is a flag. If "set", @lisp etc don't narrow margins; it will % also clear it, so that its embedded environments do the narrowing again. \let\nonarrowing=\relax % @cartouche ... @end cartouche: draw rectangle w/rounded corners around % environment contents. \font\circle=lcircle10 \newdimen\circthick \newdimen\cartouter\newdimen\cartinner \newskip\normbskip\newskip\normpskip\newskip\normlskip \circthick=\fontdimen8\circle % \def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth \def\ctr{{\hskip 6pt\circle\char'010}} \def\cbl{{\circle\char'012\hskip -6pt}} \def\cbr{{\hskip 6pt\circle\char'011}} \def\carttop{\hbox to \cartouter{\hskip\lskip \ctl\leaders\hrule height\circthick\hfil\ctr \hskip\rskip}} \def\cartbot{\hbox to \cartouter{\hskip\lskip \cbl\leaders\hrule height\circthick\hfil\cbr \hskip\rskip}} % \newskip\lskip\newskip\rskip \envdef\cartouche{% \ifhmode\par\fi % can't be in the midst of a paragraph. \startsavinginserts \lskip=\leftskip \rskip=\rightskip \leftskip=0pt\rightskip=0pt % we want these *outside*. \cartinner=\hsize \advance\cartinner by-\lskip \advance\cartinner by-\rskip \cartouter=\hsize \advance\cartouter by 18.4pt % allow for 3pt kerns on either % side, and for 6pt waste from % each corner char, and rule thickness \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip % Flag to tell @lisp, etc., not to narrow margin. \let\nonarrowing = t% \vbox\bgroup \baselineskip=0pt\parskip=0pt\lineskip=0pt \carttop \hbox\bgroup \hskip\lskip \vrule\kern3pt \vbox\bgroup \kern3pt \hsize=\cartinner \baselineskip=\normbskip \lineskip=\normlskip \parskip=\normpskip \vskip -\parskip \comment % For explanation, see the end of \def\group. } \def\Ecartouche{% \ifhmode\par\fi \kern3pt \egroup \kern3pt\vrule \hskip\rskip \egroup \cartbot \egroup \checkinserts } % This macro is called at the beginning of all the @example variants, % inside a group. \newdimen\nonfillparindent \def\nonfillstart{% \aboveenvbreak \hfuzz = 12pt % Don't be fussy \sepspaces % Make spaces be word-separators rather than space tokens. \let\par = \lisppar % don't ignore blank lines \obeylines % each line of input is a line of output \parskip = 0pt % Turn off paragraph indentation but redefine \indent to emulate % the normal \indent. \nonfillparindent=\parindent \parindent = 0pt \let\indent\nonfillindent % \emergencystretch = 0pt % don't try to avoid overfull boxes \ifx\nonarrowing\relax \advance \leftskip by \lispnarrowing \exdentamount=\lispnarrowing \else \let\nonarrowing = \relax \fi \let\exdent=\nofillexdent } \begingroup \obeyspaces % We want to swallow spaces (but not other tokens) after the fake % @indent in our nonfill-environments, where spaces are normally % active and set to @tie, resulting in them not being ignored after % @indent. \gdef\nonfillindent{\futurelet\temp\nonfillindentcheck}% \gdef\nonfillindentcheck{% \ifx\temp % \expandafter\nonfillindentgobble% \else% \leavevmode\nonfillindentbox% \fi% }% \endgroup \def\nonfillindentgobble#1{\nonfillindent} \def\nonfillindentbox{\hbox to \nonfillparindent{\hss}} % If you want all examples etc. small: @set dispenvsize small. % If you want even small examples the full size: @set dispenvsize nosmall. % This affects the following displayed environments: % @example, @display, @format, @lisp % \def\smallword{small} \def\nosmallword{nosmall} \let\SETdispenvsize\relax \def\setnormaldispenv{% \ifx\SETdispenvsize\smallword % end paragraph for sake of leading, in case document has no blank % line. This is redundant with what happens in \aboveenvbreak, but % we need to do it before changing the fonts, and it's inconvenient % to change the fonts afterward. \ifnum \lastpenalty=10000 \else \endgraf \fi \smallexamplefonts \rm \fi } \def\setsmalldispenv{% \ifx\SETdispenvsize\nosmallword \else \ifnum \lastpenalty=10000 \else \endgraf \fi \smallexamplefonts \rm \fi } % We often define two environments, @foo and @smallfoo. % Let's do it by one command: \def\makedispenv #1#2{ \expandafter\envdef\csname#1\endcsname {\setnormaldispenv #2} \expandafter\envdef\csname small#1\endcsname {\setsmalldispenv #2} \expandafter\let\csname E#1\endcsname \afterenvbreak \expandafter\let\csname Esmall#1\endcsname \afterenvbreak } % Define two synonyms: \def\maketwodispenvs #1#2#3{ \makedispenv{#1}{#3} \makedispenv{#2}{#3} } % @lisp: indented, narrowed, typewriter font; @example: same as @lisp. % % @smallexample and @smalllisp: use smaller fonts. % Originally contributed by Pavel@xerox. % \maketwodispenvs {lisp}{example}{% \nonfillstart \tt\setupmarkupstyle{example}% \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special. \gobble % eat return } % @display/@smalldisplay: same as @lisp except keep current font. % \makedispenv {display}{% \nonfillstart \gobble } % @format/@smallformat: same as @display except don't narrow margins. % \makedispenv{format}{% \let\nonarrowing = t% \nonfillstart \gobble } % @flushleft: same as @format, but doesn't obey \SETdispenvsize. \envdef\flushleft{% \let\nonarrowing = t% \nonfillstart \gobble } \let\Eflushleft = \afterenvbreak % @flushright. % \envdef\flushright{% \let\nonarrowing = t% \nonfillstart \advance\leftskip by 0pt plus 1fill \gobble } \let\Eflushright = \afterenvbreak % @raggedright does more-or-less normal line breaking but no right % justification. From plain.tex. \envdef\raggedright{% \rightskip0pt plus2em \spaceskip.3333em \xspaceskip.5em\relax } \let\Eraggedright\par \envdef\raggedleft{% \parindent=0pt \leftskip0pt plus2em \spaceskip.3333em \xspaceskip.5em \parfillskip=0pt \hbadness=10000 % Last line will usually be underfull, so turn off % badness reporting. } \let\Eraggedleft\par \envdef\raggedcenter{% \parindent=0pt \rightskip0pt plus1em \leftskip0pt plus1em \spaceskip.3333em \xspaceskip.5em \parfillskip=0pt \hbadness=10000 % Last line will usually be underfull, so turn off % badness reporting. } \let\Eraggedcenter\par % @quotation does normal linebreaking (hence we can't use \nonfillstart) % and narrows the margins. We keep \parskip nonzero in general, since % we're doing normal filling. So, when using \aboveenvbreak and % \afterenvbreak, temporarily make \parskip 0. % \def\quotationstart{% {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip \parindent=0pt % % @cartouche defines \nonarrowing to inhibit narrowing at next level down. \ifx\nonarrowing\relax \advance\leftskip by \lispnarrowing \advance\rightskip by \lispnarrowing \exdentamount = \lispnarrowing \else \let\nonarrowing = \relax \fi \parsearg\quotationlabel } \envdef\quotation{% \setnormaldispenv \quotationstart } \envdef\smallquotation{% \setsmalldispenv \quotationstart } \let\Esmallquotation = \Equotation % We have retained a nonzero parskip for the environment, since we're % doing normal filling. % \def\Equotation{% \par \ifx\quotationauthor\undefined\else % indent a bit. \leftline{\kern 2\leftskip \sl ---\quotationauthor}% \fi {\parskip=0pt \afterenvbreak}% } % If we're given an argument, typeset it in bold with a colon after. \def\quotationlabel#1{% \def\temp{#1}% \ifx\temp\empty \else {\bf #1: }% \fi } % LaTeX-like @verbatim...@end verbatim and @verb{...} % If we want to allow any as delimiter, % we need the curly braces so that makeinfo sees the @verb command, eg: % `@verbx...x' would look like the '@verbx' command. --janneke@gnu.org % % [Knuth]: Donald Ervin Knuth, 1996. The TeXbook. % % [Knuth] p.344; only we need to do the other characters Texinfo sets % active too. Otherwise, they get lost as the first character on a % verbatim line. \def\dospecials{% \do\ \do\\\do\{\do\}\do\$\do\&% \do\#\do\^\do\^^K\do\_\do\^^A\do\%\do\~% \do\<\do\>\do\|\do\@\do+\do\"% % Don't do the quotes -- if we do, @set txicodequoteundirected and % @set txicodequotebacktick will not have effect on @verb and % @verbatim, and ?` and !` ligatures won't get disabled. %\do\`\do\'% } % % [Knuth] p. 380 \def\uncatcodespecials{% \def\do##1{\catcode`##1=\other}\dospecials} % % Setup for the @verb command. % % Eight spaces for a tab \begingroup \catcode`\^^I=\active \gdef\tabeightspaces{\catcode`\^^I=\active\def^^I{\ \ \ \ \ \ \ \ }} \endgroup % \def\setupverb{% \tt % easiest (and conventionally used) font for verbatim \def\par{\leavevmode\endgraf}% \setupmarkupstyle{verb}% \tabeightspaces % Respect line breaks, % print special symbols as themselves, and % make each space count % must do in this order: \obeylines \uncatcodespecials \sepspaces } % Setup for the @verbatim environment % % Real tab expansion \newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount % \def\starttabbox{\setbox0=\hbox\bgroup} % \begingroup \catcode`\^^I=\active \gdef\tabexpand{% \catcode`\^^I=\active \def^^I{\leavevmode\egroup \dimen0=\wd0 % the width so far, or since the previous tab \divide\dimen0 by\tabw \multiply\dimen0 by\tabw % compute previous multiple of \tabw \advance\dimen0 by\tabw % advance to next multiple of \tabw \wd0=\dimen0 \box0 \starttabbox }% } \endgroup % start the verbatim environment. \def\setupverbatim{% \let\nonarrowing = t% \nonfillstart % Easiest (and conventionally used) font for verbatim \tt \def\par{\leavevmode\egroup\box0\endgraf}% \tabexpand \setupmarkupstyle{verbatim}% % Respect line breaks, % print special symbols as themselves, and % make each space count % must do in this order: \obeylines \uncatcodespecials \sepspaces \everypar{\starttabbox}% } % Do the @verb magic: verbatim text is quoted by unique % delimiter characters. Before first delimiter expect a % right brace, after last delimiter expect closing brace: % % \def\doverb'{'#1'}'{#1} % % [Knuth] p. 382; only eat outer {} \begingroup \catcode`[=1\catcode`]=2\catcode`\{=\other\catcode`\}=\other \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next] \endgroup % \def\verb{\begingroup\setupverb\doverb} % % % Do the @verbatim magic: define the macro \doverbatim so that % the (first) argument ends when '@end verbatim' is reached, ie: % % \def\doverbatim#1@end verbatim{#1} % % For Texinfo it's a lot easier than for LaTeX, % because texinfo's \verbatim doesn't stop at '\end{verbatim}': % we need not redefine '\', '{' and '}'. % % Inspired by LaTeX's verbatim command set [latex.ltx] % \begingroup \catcode`\ =\active \obeylines % % ignore everything up to the first ^^M, that's the newline at the end % of the @verbatim input line itself. Otherwise we get an extra blank % line in the output. \xdef\doverbatim#1^^M#2@end verbatim{#2\noexpand\end\gobble verbatim}% % We really want {...\end verbatim} in the body of the macro, but % without the active space; thus we have to use \xdef and \gobble. \endgroup % \envdef\verbatim{% \setupverbatim\doverbatim } \let\Everbatim = \afterenvbreak % @verbatiminclude FILE - insert text of file in verbatim environment. % \def\verbatiminclude{\parseargusing\filenamecatcodes\doverbatiminclude} % \def\doverbatiminclude#1{% {% \makevalueexpandable \setupverbatim \indexnofonts % Allow `@@' and other weird things in file names. \input #1 \afterenvbreak }% } % @copying ... @end copying. % Save the text away for @insertcopying later. % % We save the uninterpreted tokens, rather than creating a box. % Saving the text in a box would be much easier, but then all the % typesetting commands (@smallbook, font changes, etc.) have to be done % beforehand -- and a) we want @copying to be done first in the source % file; b) letting users define the frontmatter in as flexible order as % possible is very desirable. % \def\copying{\checkenv{}\begingroup\scanargctxt\docopying} \def\docopying#1@end copying{\endgroup\def\copyingtext{#1}} % \def\insertcopying{% \begingroup \parindent = 0pt % paragraph indentation looks wrong on title page \scanexp\copyingtext \endgroup } \message{defuns,} % @defun etc. \newskip\defbodyindent \defbodyindent=.4in \newskip\defargsindent \defargsindent=50pt \newskip\deflastargmargin \deflastargmargin=18pt \newcount\defunpenalty % Start the processing of @deffn: \def\startdefun{% \ifnum\lastpenalty<10000 \medbreak \defunpenalty=10003 % Will keep this @deffn together with the % following @def command, see below. \else % If there are two @def commands in a row, we'll have a \nobreak, % which is there to keep the function description together with its % header. But if there's nothing but headers, we need to allow a % break somewhere. Check specifically for penalty 10002, inserted % by \printdefunline, instead of 10000, since the sectioning % commands also insert a nobreak penalty, and we don't want to allow % a break between a section heading and a defun. % % As a minor refinement, we avoid "club" headers by signalling % with penalty of 10003 after the very first @deffn in the % sequence (see above), and penalty of 10002 after any following % @def command. \ifnum\lastpenalty=10002 \penalty2000 \else \defunpenalty=10002 \fi % % Similarly, after a section heading, do not allow a break. % But do insert the glue. \medskip % preceded by discardable penalty, so not a breakpoint \fi % \parindent=0in \advance\leftskip by \defbodyindent \exdentamount=\defbodyindent } \def\dodefunx#1{% % First, check whether we are in the right environment: \checkenv#1% % % As above, allow line break if we have multiple x headers in a row. % It's not a great place, though. \ifnum\lastpenalty=10002 \penalty3000 \else \defunpenalty=10002 \fi % % And now, it's time to reuse the body of the original defun: \expandafter\gobbledefun#1% } \def\gobbledefun#1\startdefun{} % \printdefunline \deffnheader{text} % \def\printdefunline#1#2{% \begingroup % call \deffnheader: #1#2 \endheader % common ending: \interlinepenalty = 10000 \advance\rightskip by 0pt plus 1fil \endgraf \nobreak\vskip -\parskip \penalty\defunpenalty % signal to \startdefun and \dodefunx % Some of the @defun-type tags do not enable magic parentheses, % rendering the following check redundant. But we don't optimize. \checkparencounts \endgroup } \def\Edefun{\endgraf\medbreak} % \makedefun{deffn} creates \deffn, \deffnx and \Edeffn; % the only thing remaining is to define \deffnheader. % \def\makedefun#1{% \expandafter\let\csname E#1\endcsname = \Edefun \edef\temp{\noexpand\domakedefun \makecsname{#1}\makecsname{#1x}\makecsname{#1header}}% \temp } % \domakedefun \deffn \deffnx \deffnheader % % Define \deffn and \deffnx, without parameters. % \deffnheader has to be defined explicitly. % \def\domakedefun#1#2#3{% \envdef#1{% \startdefun \parseargusing\activeparens{\printdefunline#3}% }% \def#2{\dodefunx#1}% \def#3% } %%% Untyped functions: % @deffn category name args \makedefun{deffn}{\deffngeneral{}} % @deffn category class name args \makedefun{defop}#1 {\defopon{#1\ \putwordon}} % \defopon {category on}class name args \def\defopon#1#2 {\deffngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} } % \deffngeneral {subind}category name args % \def\deffngeneral#1#2 #3 #4\endheader{% % Remember that \dosubind{fn}{foo}{} is equivalent to \doind{fn}{foo}. \dosubind{fn}{\code{#3}}{#1}% \defname{#2}{}{#3}\magicamp\defunargs{#4\unskip}% } %%% Typed functions: % @deftypefn category type name args \makedefun{deftypefn}{\deftypefngeneral{}} % @deftypeop category class type name args \makedefun{deftypeop}#1 {\deftypeopon{#1\ \putwordon}} % \deftypeopon {category on}class type name args \def\deftypeopon#1#2 {\deftypefngeneral{\putwordon\ \code{#2}}{#1\ \code{#2}} } % \deftypefngeneral {subind}category type name args % \def\deftypefngeneral#1#2 #3 #4 #5\endheader{% \dosubind{fn}{\code{#4}}{#1}% \defname{#2}{#3}{#4}\defunargs{#5\unskip}% } %%% Typed variables: % @deftypevr category type var args \makedefun{deftypevr}{\deftypecvgeneral{}} % @deftypecv category class type var args \makedefun{deftypecv}#1 {\deftypecvof{#1\ \putwordof}} % \deftypecvof {category of}class type var args \def\deftypecvof#1#2 {\deftypecvgeneral{\putwordof\ \code{#2}}{#1\ \code{#2}} } % \deftypecvgeneral {subind}category type var args % \def\deftypecvgeneral#1#2 #3 #4 #5\endheader{% \dosubind{vr}{\code{#4}}{#1}% \defname{#2}{#3}{#4}\defunargs{#5\unskip}% } %%% Untyped variables: % @defvr category var args \makedefun{defvr}#1 {\deftypevrheader{#1} {} } % @defcv category class var args \makedefun{defcv}#1 {\defcvof{#1\ \putwordof}} % \defcvof {category of}class var args \def\defcvof#1#2 {\deftypecvof{#1}#2 {} } %%% Type: % @deftp category name args \makedefun{deftp}#1 #2 #3\endheader{% \doind{tp}{\code{#2}}% \defname{#1}{}{#2}\defunargs{#3\unskip}% } % Remaining @defun-like shortcuts: \makedefun{defun}{\deffnheader{\putwordDeffunc} } \makedefun{defmac}{\deffnheader{\putwordDefmac} } \makedefun{defspec}{\deffnheader{\putwordDefspec} } \makedefun{deftypefun}{\deftypefnheader{\putwordDeffunc} } \makedefun{defvar}{\defvrheader{\putwordDefvar} } \makedefun{defopt}{\defvrheader{\putwordDefopt} } \makedefun{deftypevar}{\deftypevrheader{\putwordDefvar} } \makedefun{defmethod}{\defopon\putwordMethodon} \makedefun{deftypemethod}{\deftypeopon\putwordMethodon} \makedefun{defivar}{\defcvof\putwordInstanceVariableof} \makedefun{deftypeivar}{\deftypecvof\putwordInstanceVariableof} % \defname, which formats the name of the @def (not the args). % #1 is the category, such as "Function". % #2 is the return type, if any. % #3 is the function name. % % We are followed by (but not passed) the arguments, if any. % \def\defname#1#2#3{% % Get the values of \leftskip and \rightskip as they were outside the @def... \advance\leftskip by -\defbodyindent % % How we'll format the type name. Putting it in brackets helps % distinguish it from the body text that may end up on the next line % just below it. \def\temp{#1}% \setbox0=\hbox{\kern\deflastargmargin \ifx\temp\empty\else [\rm\temp]\fi} % % Figure out line sizes for the paragraph shape. % The first line needs space for \box0; but if \rightskip is nonzero, % we need only space for the part of \box0 which exceeds it: \dimen0=\hsize \advance\dimen0 by -\wd0 \advance\dimen0 by \rightskip % The continuations: \dimen2=\hsize \advance\dimen2 by -\defargsindent % (plain.tex says that \dimen1 should be used only as global.) \parshape 2 0in \dimen0 \defargsindent \dimen2 % % Put the type name to the right margin. \noindent \hbox to 0pt{% \hfil\box0 \kern-\hsize % \hsize has to be shortened this way: \kern\leftskip % Intentionally do not respect \rightskip, since we need the space. }% % % Allow all lines to be underfull without complaint: \tolerance=10000 \hbadness=10000 \exdentamount=\defbodyindent {% % defun fonts. We use typewriter by default (used to be bold) because: % . we're printing identifiers, they should be in tt in principle. % . in languages with many accents, such as Czech or French, it's % common to leave accents off identifiers. The result looks ok in % tt, but exceedingly strange in rm. % . we don't want -- and --- to be treated as ligatures. % . this still does not fix the ?` and !` ligatures, but so far no % one has made identifiers using them :). \df \tt \def\temp{#2}% return value type \ifx\temp\empty\else \tclose{\temp} \fi #3% output function name }% {\rm\enskip}% hskip 0.5 em of \tenrm % \boldbrax % arguments will be output next, if any. } % Print arguments in slanted roman (not ttsl), inconsistently with using % tt for the name. This is because literal text is sometimes needed in % the argument list (groff manual), and ttsl and tt are not very % distinguishable. Prevent hyphenation at `-' chars. % \def\defunargs#1{% % use sl by default (not ttsl), % tt for the names. \df \sl \hyphenchar\font=0 % % On the other hand, if an argument has two dashes (for instance), we % want a way to get ttsl. Let's try @var for that. \def\var##1{{\setupmarkupstyle{var}\ttslanted{##1}}}% #1% \sl\hyphenchar\font=45 } % We want ()&[] to print specially on the defun line. % \def\activeparens{% \catcode`\(=\active \catcode`\)=\active \catcode`\[=\active \catcode`\]=\active \catcode`\&=\active } % Make control sequences which act like normal parenthesis chars. \let\lparen = ( \let\rparen = ) % Be sure that we always have a definition for `(', etc. For example, % if the fn name has parens in it, \boldbrax will not be in effect yet, % so TeX would otherwise complain about undefined control sequence. { \activeparens \global\let(=\lparen \global\let)=\rparen \global\let[=\lbrack \global\let]=\rbrack \global\let& = \& \gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb} \gdef\magicamp{\let&=\amprm} } \newcount\parencount % If we encounter &foo, then turn on ()-hacking afterwards \newif\ifampseen \def\amprm#1 {\ampseentrue{\bf\ }} \def\parenfont{% \ifampseen % At the first level, print parens in roman, % otherwise use the default font. \ifnum \parencount=1 \rm \fi \else % The \sf parens (in \boldbrax) actually are a little bolder than % the contained text. This is especially needed for [ and ] . \sf \fi } \def\infirstlevel#1{% \ifampseen \ifnum\parencount=1 #1% \fi \fi } \def\bfafterword#1 {#1 \bf} \def\opnr{% \global\advance\parencount by 1 {\parenfont(}% \infirstlevel \bfafterword } \def\clnr{% {\parenfont)}% \infirstlevel \sl \global\advance\parencount by -1 } \newcount\brackcount \def\lbrb{% \global\advance\brackcount by 1 {\bf[}% } \def\rbrb{% {\bf]}% \global\advance\brackcount by -1 } \def\checkparencounts{% \ifnum\parencount=0 \else \badparencount \fi \ifnum\brackcount=0 \else \badbrackcount \fi } % these should not use \errmessage; the glibc manual, at least, actually % has such constructs (when documenting function pointers). \def\badparencount{% \message{Warning: unbalanced parentheses in @def...}% \global\parencount=0 } \def\badbrackcount{% \message{Warning: unbalanced square brackets in @def...}% \global\brackcount=0 } \message{macros,} % @macro. % To do this right we need a feature of e-TeX, \scantokens, % which we arrange to emulate with a temporary file in ordinary TeX. \ifx\eTeXversion\undefined \newwrite\macscribble \def\scantokens#1{% \toks0={#1}% \immediate\openout\macscribble=\jobname.tmp \immediate\write\macscribble{\the\toks0}% \immediate\closeout\macscribble \input \jobname.tmp } \fi \def\scanmacro#1{% \begingroup \newlinechar`\^^M \let\xeatspaces\eatspaces % Undo catcode changes of \startcontents and \doprintindex % When called from @insertcopying or (short)caption, we need active % backslash to get it printed correctly. Previously, we had % \catcode`\\=\other instead. We'll see whether a problem appears % with macro expansion. --kasal, 19aug04 \catcode`\@=0 \catcode`\\=\active \escapechar=`\@ % ... and \example \spaceisspace % % Append \endinput to make sure that TeX does not see the ending newline. % I've verified that it is necessary both for e-TeX and for ordinary TeX % --kasal, 29nov03 \scantokens{#1\endinput}% \endgroup } \def\scanexp#1{% \edef\temp{\noexpand\scanmacro{#1}}% \temp } \newcount\paramno % Count of parameters \newtoks\macname % Macro name \newif\ifrecursive % Is it recursive? % List of all defined macros in the form % \definedummyword\macro1\definedummyword\macro2... % Currently is also contains all @aliases; the list can be split % if there is a need. \def\macrolist{} % Add the macro to \macrolist \def\addtomacrolist#1{\expandafter \addtomacrolistxxx \csname#1\endcsname} \def\addtomacrolistxxx#1{% \toks0 = \expandafter{\macrolist\definedummyword#1}% \xdef\macrolist{\the\toks0}% } % Utility routines. % This does \let #1 = #2, with \csnames; that is, % \let \csname#1\endcsname = \csname#2\endcsname % (except of course we have to play expansion games). % \def\cslet#1#2{% \expandafter\let \csname#1\expandafter\endcsname \csname#2\endcsname } % Trim leading and trailing spaces off a string. % Concepts from aro-bend problem 15 (see CTAN). {\catcode`\@=11 \gdef\eatspaces #1{\expandafter\trim@\expandafter{#1 }} \gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@} \gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @} \def\unbrace#1{#1} \unbrace{\gdef\trim@@@ #1 } #2@{#1} } % Trim a single trailing ^^M off a string. {\catcode`\^^M=\other \catcode`\Q=3% \gdef\eatcr #1{\eatcra #1Q^^MQ}% \gdef\eatcra#1^^MQ{\eatcrb#1Q}% \gdef\eatcrb#1Q#2Q{#1}% } % Macro bodies are absorbed as an argument in a context where % all characters are catcode 10, 11 or 12, except \ which is active % (as in normal texinfo). It is necessary to change the definition of \. % Non-ASCII encodings make 8-bit characters active, so un-activate % them to avoid their expansion. Must do this non-globally, to % confine the change to the current group. % It's necessary to have hard CRs when the macro is executed. This is % done by making ^^M (\endlinechar) catcode 12 when reading the macro % body, and then making it the \newlinechar in \scanmacro. \def\scanctxt{% \catcode`\"=\other \catcode`\+=\other \catcode`\<=\other \catcode`\>=\other \catcode`\@=\other \catcode`\^=\other \catcode`\_=\other \catcode`\|=\other \catcode`\~=\other \ifx\declaredencoding\ascii \else \setnonasciicharscatcodenonglobal\other \fi } \def\scanargctxt{% \scanctxt \catcode`\\=\other \catcode`\^^M=\other } \def\macrobodyctxt{% \scanctxt \catcode`\{=\other \catcode`\}=\other \catcode`\^^M=\other \usembodybackslash } \def\macroargctxt{% \scanctxt \catcode`\\=\other } % \mbodybackslash is the definition of \ in @macro bodies. % It maps \foo\ => \csname macarg.foo\endcsname => #N % where N is the macro parameter number. % We define \csname macarg.\endcsname to be \realbackslash, so % \\ in macro replacement text gets you a backslash. {\catcode`@=0 @catcode`@\=@active @gdef@usembodybackslash{@let\=@mbodybackslash} @gdef@mbodybackslash#1\{@csname macarg.#1@endcsname} } \expandafter\def\csname macarg.\endcsname{\realbackslash} \def\macro{\recursivefalse\parsearg\macroxxx} \def\rmacro{\recursivetrue\parsearg\macroxxx} \def\macroxxx#1{% \getargs{#1}% now \macname is the macname and \argl the arglist \ifx\argl\empty % no arguments \paramno=0% \else \expandafter\parsemargdef \argl;% \fi \if1\csname ismacro.\the\macname\endcsname \message{Warning: redefining \the\macname}% \else \expandafter\ifx\csname \the\macname\endcsname \relax \else \errmessage{Macro name \the\macname\space already defined}\fi \global\cslet{macsave.\the\macname}{\the\macname}% \global\expandafter\let\csname ismacro.\the\macname\endcsname=1% \addtomacrolist{\the\macname}% \fi \begingroup \macrobodyctxt \ifrecursive \expandafter\parsermacbody \else \expandafter\parsemacbody \fi} \parseargdef\unmacro{% \if1\csname ismacro.#1\endcsname \global\cslet{#1}{macsave.#1}% \global\expandafter\let \csname ismacro.#1\endcsname=0% % Remove the macro name from \macrolist: \begingroup \expandafter\let\csname#1\endcsname \relax \let\definedummyword\unmacrodo \xdef\macrolist{\macrolist}% \endgroup \else \errmessage{Macro #1 not defined}% \fi } % Called by \do from \dounmacro on each macro. The idea is to omit any % macro definitions that have been changed to \relax. % \def\unmacrodo#1{% \ifx #1\relax % remove this \else \noexpand\definedummyword \noexpand#1% \fi } % This makes use of the obscure feature that if the last token of a % is #, then the preceding argument is delimited by % an opening brace, and that opening brace is not consumed. \def\getargs#1{\getargsxxx#1{}} \def\getargsxxx#1#{\getmacname #1 \relax\getmacargs} \def\getmacname #1 #2\relax{\macname={#1}} \def\getmacargs#1{\def\argl{#1}} % Parse the optional {params} list. Set up \paramno and \paramlist % so \defmacro knows what to do. Define \macarg.blah for each blah % in the params list, to be ##N where N is the position in that list. % That gets used by \mbodybackslash (above). % We need to get `macro parameter char #' into several definitions. % The technique used is stolen from LaTeX: let \hash be something % unexpandable, insert that wherever you need a #, and then redefine % it to # just before using the token list produced. % % The same technique is used to protect \eatspaces till just before % the macro is used. \def\parsemargdef#1;{\paramno=0\def\paramlist{}% \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,} \def\parsemargdefxxx#1,{% \if#1;\let\next=\relax \else \let\next=\parsemargdefxxx \advance\paramno by 1% \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname {\xeatspaces{\hash\the\paramno}}% \edef\paramlist{\paramlist\hash\the\paramno,}% \fi\next} % These two commands read recursive and nonrecursive macro bodies. % (They're different since rec and nonrec macros end differently.) \long\def\parsemacbody#1@end macro% {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}% \long\def\parsermacbody#1@end rmacro% {\xdef\temp{\eatcr{#1}}\endgroup\defmacro}% % This defines the macro itself. There are six cases: recursive and % nonrecursive macros of zero, one, and many arguments. % Much magic with \expandafter here. % \xdef is used so that macro definitions will survive the file % they're defined in; @include reads the file inside a group. \def\defmacro{% \let\hash=##% convert placeholders to macro parameter chars \ifrecursive \ifcase\paramno % 0 \expandafter\xdef\csname\the\macname\endcsname{% \noexpand\scanmacro{\temp}}% \or % 1 \expandafter\xdef\csname\the\macname\endcsname{% \bgroup\noexpand\macroargctxt \noexpand\braceorline \expandafter\noexpand\csname\the\macname xxx\endcsname}% \expandafter\xdef\csname\the\macname xxx\endcsname##1{% \egroup\noexpand\scanmacro{\temp}}% \else % many \expandafter\xdef\csname\the\macname\endcsname{% \bgroup\noexpand\macroargctxt \noexpand\csname\the\macname xx\endcsname}% \expandafter\xdef\csname\the\macname xx\endcsname##1{% \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}% \expandafter\expandafter \expandafter\xdef \expandafter\expandafter \csname\the\macname xxx\endcsname \paramlist{\egroup\noexpand\scanmacro{\temp}}% \fi \else \ifcase\paramno % 0 \expandafter\xdef\csname\the\macname\endcsname{% \noexpand\norecurse{\the\macname}% \noexpand\scanmacro{\temp}\egroup}% \or % 1 \expandafter\xdef\csname\the\macname\endcsname{% \bgroup\noexpand\macroargctxt \noexpand\braceorline \expandafter\noexpand\csname\the\macname xxx\endcsname}% \expandafter\xdef\csname\the\macname xxx\endcsname##1{% \egroup \noexpand\norecurse{\the\macname}% \noexpand\scanmacro{\temp}\egroup}% \else % many \expandafter\xdef\csname\the\macname\endcsname{% \bgroup\noexpand\macroargctxt \expandafter\noexpand\csname\the\macname xx\endcsname}% \expandafter\xdef\csname\the\macname xx\endcsname##1{% \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}% \expandafter\expandafter \expandafter\xdef \expandafter\expandafter \csname\the\macname xxx\endcsname \paramlist{% \egroup \noexpand\norecurse{\the\macname}% \noexpand\scanmacro{\temp}\egroup}% \fi \fi} \def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}} % \braceorline decides whether the next nonwhitespace character is a % {. If so it reads up to the closing }, if not, it reads the whole % line. Whatever was read is then fed to the next control sequence % as an argument (by \parsebrace or \parsearg) \def\braceorline#1{\let\macnamexxx=#1\futurelet\nchar\braceorlinexxx} \def\braceorlinexxx{% \ifx\nchar\bgroup\else \expandafter\parsearg \fi \macnamexxx} % @alias. % We need some trickery to remove the optional spaces around the equal % sign. Just make them active and then expand them all to nothing. \def\alias{\parseargusing\obeyspaces\aliasxxx} \def\aliasxxx #1{\aliasyyy#1\relax} \def\aliasyyy #1=#2\relax{% {% \expandafter\let\obeyedspace=\empty \addtomacrolist{#1}% \xdef\next{\global\let\makecsname{#1}=\makecsname{#2}}% }% \next } \message{cross references,} \newwrite\auxfile \newif\ifhavexrefs % True if xref values are known. \newif\ifwarnedxrefs % True if we warned once that they aren't known. % @inforef is relatively simple. \def\inforef #1{\inforefzzz #1,,,,**} \def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}}, node \samp{\ignorespaces#1{}}} % @node's only job in TeX is to define \lastnode, which is used in % cross-references. The @node line might or might not have commas, and % might or might not have spaces before the first comma, like: % @node foo , bar , ... % We don't want such trailing spaces in the node name. % \parseargdef\node{\checkenv{}\donode #1 ,\finishnodeparse} % % also remove a trailing comma, in case of something like this: % @node Help-Cross, , , Cross-refs \def\donode#1 ,#2\finishnodeparse{\dodonode #1,\finishnodeparse} \def\dodonode#1,#2\finishnodeparse{\gdef\lastnode{#1}} \let\nwnode=\node \let\lastnode=\empty % Write a cross-reference definition for the current node. #1 is the % type (Ynumbered, Yappendix, Ynothing). % \def\donoderef#1{% \ifx\lastnode\empty\else \setref{\lastnode}{#1}% \global\let\lastnode=\empty \fi } % @anchor{NAME} -- define xref target at arbitrary point. % \newcount\savesfregister % \def\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi} \def\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi} \def\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces} % \setref{NAME}{SNT} defines a cross-reference point NAME (a node or an % anchor), which consists of three parts: % 1) NAME-title - the current sectioning name taken from \lastsection, % or the anchor name. % 2) NAME-snt - section number and type, passed as the SNT arg, or % empty for anchors. % 3) NAME-pg - the page number. % % This is called from \donoderef, \anchor, and \dofloat. In the case of % floats, there is an additional part, which is not written here: % 4) NAME-lof - the text as it should appear in a @listoffloats. % \def\setref#1#2{% \pdfmkdest{#1}% \iflinks {% \atdummies % preserve commands, but don't expand them \edef\writexrdef##1##2{% \write\auxfile{@xrdef{#1-% #1 of \setref, expanded by the \edef ##1}{##2}}% these are parameters of \writexrdef }% \toks0 = \expandafter{\lastsection}% \immediate \writexrdef{title}{\the\toks0 }% \immediate \writexrdef{snt}{\csname #2\endcsname}% \Ynumbered etc. \safewhatsit{\writexrdef{pg}{\folio}}% will be written later, during \shipout }% \fi } % @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is % the node name, #2 the name of the Info cross-reference, #3 the printed % node name, #4 the name of the Info file, #5 the name of the printed % manual. All but the node name can be omitted. % \def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]} \def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]} \def\ref#1{\xrefX[#1,,,,,,,]} \def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup \unsepspaces \def\printedmanual{\ignorespaces #5}% \def\printedrefname{\ignorespaces #3}% \setbox1=\hbox{\printedmanual\unskip}% \setbox0=\hbox{\printedrefname\unskip}% \ifdim \wd0 = 0pt % No printed node name was explicitly given. \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax % Use the node name inside the square brackets. \def\printedrefname{\ignorespaces #1}% \else % Use the actual chapter/section title appear inside % the square brackets. Use the real section title if we have it. \ifdim \wd1 > 0pt % It is in another manual, so we don't have it. \def\printedrefname{\ignorespaces #1}% \else \ifhavexrefs % We know the real title if we have the xref values. \def\printedrefname{\refx{#1-title}{}}% \else % Otherwise just copy the Info node name. \def\printedrefname{\ignorespaces #1}% \fi% \fi \fi \fi % % Make link in pdf output. \ifpdf {\indexnofonts \turnoffactive % This expands tokens, so do it after making catcode changes, so _ % etc. don't get their TeX definitions. \getfilename{#4}% % % See comments at \activebackslashdouble. {\activebackslashdouble \xdef\pdfxrefdest{#1}% \backslashparens\pdfxrefdest}% % \leavevmode \startlink attr{/Border [0 0 0]}% \ifnum\filenamelength>0 goto file{\the\filename.pdf} name{\pdfxrefdest}% \else goto name{\pdfmkpgn{\pdfxrefdest}}% \fi }% \setcolor{\linkcolor}% \fi % % Float references are printed completely differently: "Figure 1.2" % instead of "[somenode], p.3". We distinguish them by the % LABEL-title being set to a magic string. {% % Have to otherify everything special to allow the \csname to % include an _ in the xref name, etc. \indexnofonts \turnoffactive \expandafter\global\expandafter\let\expandafter\Xthisreftitle \csname XR#1-title\endcsname }% \iffloat\Xthisreftitle % If the user specified the print name (third arg) to the ref, % print it instead of our usual "Figure 1.2". \ifdim\wd0 = 0pt \refx{#1-snt}{}% \else \printedrefname \fi % % if the user also gave the printed manual name (fifth arg), append % "in MANUALNAME". \ifdim \wd1 > 0pt \space \putwordin{} \cite{\printedmanual}% \fi \else % node/anchor (non-float) references. % % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not % insert empty discretionaries after hyphens, which means that it will % not find a line break at a hyphen in a node names. Since some manuals % are best written with fairly long node names, containing hyphens, this % is a loss. Therefore, we give the text of the node name again, so it % is as if TeX is seeing it for the first time. \ifdim \wd1 > 0pt \putwordSection{} ``\printedrefname'' \putwordin{} \cite{\printedmanual}% \else % _ (for example) has to be the character _ for the purposes of the % control sequence corresponding to the node, but it has to expand % into the usual \leavevmode...\vrule stuff for purposes of % printing. So we \turnoffactive for the \refx-snt, back on for the % printing, back off for the \refx-pg. {\turnoffactive % Only output a following space if the -snt ref is nonempty; for % @unnumbered and @anchor, it won't be. \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}% \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi }% % output the `[mynode]' via a macro so it can be overridden. \xrefprintnodename\printedrefname % % But we always want a comma and a space: ,\space % % output the `page 3'. \turnoffactive \putwordpage\tie\refx{#1-pg}{}% \fi \fi \endlink \endgroup} % This macro is called from \xrefX for the `[nodename]' part of xref % output. It's a separate macro only so it can be changed more easily, % since square brackets don't work well in some documents. Particularly % one that Bob is working on :). % \def\xrefprintnodename#1{[#1]} % Things referred to by \setref. % \def\Ynothing{} \def\Yomitfromtoc{} \def\Ynumbered{% \ifnum\secno=0 \putwordChapter@tie \the\chapno \else \ifnum\subsecno=0 \putwordSection@tie \the\chapno.\the\secno \else \ifnum\subsubsecno=0 \putwordSection@tie \the\chapno.\the\secno.\the\subsecno \else \putwordSection@tie \the\chapno.\the\secno.\the\subsecno.\the\subsubsecno \fi\fi\fi } \def\Yappendix{% \ifnum\secno=0 \putwordAppendix@tie @char\the\appendixno{}% \else \ifnum\subsecno=0 \putwordSection@tie @char\the\appendixno.\the\secno \else \ifnum\subsubsecno=0 \putwordSection@tie @char\the\appendixno.\the\secno.\the\subsecno \else \putwordSection@tie @char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno \fi\fi\fi } % Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME. % If its value is nonempty, SUFFIX is output afterward. % \def\refx#1#2{% {% \indexnofonts \otherbackslash \expandafter\global\expandafter\let\expandafter\thisrefX \csname XR#1\endcsname }% \ifx\thisrefX\relax % If not defined, say something at least. \angleleft un\-de\-fined\angleright \iflinks \ifhavexrefs \message{\linenumber Undefined cross reference `#1'.}% \else \ifwarnedxrefs\else \global\warnedxrefstrue \message{Cross reference values unknown; you must run TeX again.}% \fi \fi \fi \else % It's defined, so just use it. \thisrefX \fi #2% Output the suffix in any case. } % This is the macro invoked by entries in the aux file. Usually it's % just a \def (we prepend XR to the control sequence name to avoid % collisions). But if this is a float type, we have more work to do. % \def\xrdef#1#2{% {% The node name might contain 8-bit characters, which in our current % implementation are changed to commands like @'e. Don't let these % mess up the control sequence name. \indexnofonts \turnoffactive \xdef\safexrefname{#1}% }% % \expandafter\gdef\csname XR\safexrefname\endcsname{#2}% remember this xref % % Was that xref control sequence that we just defined for a float? \expandafter\iffloat\csname XR\safexrefname\endcsname % it was a float, and we have the (safe) float type in \iffloattype. \expandafter\let\expandafter\floatlist \csname floatlist\iffloattype\endcsname % % Is this the first time we've seen this float type? \expandafter\ifx\floatlist\relax \toks0 = {\do}% yes, so just \do \else % had it before, so preserve previous elements in list. \toks0 = \expandafter{\floatlist\do}% \fi % % Remember this xref in the control sequence \floatlistFLOATTYPE, % for later use in \listoffloats. \expandafter\xdef\csname floatlist\iffloattype\endcsname{\the\toks0 {\safexrefname}}% \fi } % Read the last existing aux file, if any. No error if none exists. % \def\tryauxfile{% \openin 1 \jobname.aux \ifeof 1 \else \readdatafile{aux}% \global\havexrefstrue \fi \closein 1 } \def\setupdatafile{% \catcode`\^^@=\other \catcode`\^^A=\other \catcode`\^^B=\other \catcode`\^^C=\other \catcode`\^^D=\other \catcode`\^^E=\other \catcode`\^^F=\other \catcode`\^^G=\other \catcode`\^^H=\other \catcode`\^^K=\other \catcode`\^^L=\other \catcode`\^^N=\other \catcode`\^^P=\other \catcode`\^^Q=\other \catcode`\^^R=\other \catcode`\^^S=\other \catcode`\^^T=\other \catcode`\^^U=\other \catcode`\^^V=\other \catcode`\^^W=\other \catcode`\^^X=\other \catcode`\^^Z=\other \catcode`\^^[=\other \catcode`\^^\=\other \catcode`\^^]=\other \catcode`\^^^=\other \catcode`\^^_=\other % It was suggested to set the catcode of ^ to 7, which would allow ^^e4 etc. % in xref tags, i.e., node names. But since ^^e4 notation isn't % supported in the main text, it doesn't seem desirable. Furthermore, % that is not enough: for node names that actually contain a ^ % character, we would end up writing a line like this: 'xrdef {'hat % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first % argument, and \hat is not an expandable control sequence. It could % all be worked out, but why? Either we support ^^ or we don't. % % The other change necessary for this was to define \auxhat: % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter % and then to call \auxhat in \setq. % \catcode`\^=\other % % Special characters. Should be turned off anyway, but... \catcode`\~=\other \catcode`\[=\other \catcode`\]=\other \catcode`\"=\other \catcode`\_=\other \catcode`\|=\other \catcode`\<=\other \catcode`\>=\other \catcode`\$=\other \catcode`\#=\other \catcode`\&=\other \catcode`\%=\other \catcode`+=\other % avoid \+ for paranoia even though we've turned it off % % This is to support \ in node names and titles, since the \ % characters end up in a \csname. It's easier than % leaving it active and making its active definition an actual \ % character. What I don't understand is why it works in the *value* % of the xrdef. Seems like it should be a catcode12 \, and that % should not typeset properly. But it works, so I'm moving on for % now. --karl, 15jan04. \catcode`\\=\other % % Make the characters 128-255 be printing characters. {% \count1=128 \def\loop{% \catcode\count1=\other \advance\count1 by 1 \ifnum \count1<256 \loop \fi }% }% % % @ is our escape character in .aux files, and we need braces. \catcode`\{=1 \catcode`\}=2 \catcode`\@=0 } \def\readdatafile#1{% \begingroup \setupdatafile \input\jobname.#1 \endgroup} \message{insertions,} % including footnotes. \newcount \footnoteno % The trailing space in the following definition for supereject is % vital for proper filling; pages come out unaligned when you do a % pagealignmacro call if that space before the closing brace is % removed. (Generally, numeric constants should always be followed by a % space to prevent strange expansion errors.) \def\supereject{\par\penalty -20000\footnoteno =0 } % @footnotestyle is meaningful for info output only. \let\footnotestyle=\comment {\catcode `\@=11 % % Auto-number footnotes. Otherwise like plain. \gdef\footnote{% \let\indent=\ptexindent \let\noindent=\ptexnoindent \global\advance\footnoteno by \@ne \edef\thisfootno{$^{\the\footnoteno}$}% % % In case the footnote comes at the end of a sentence, preserve the % extra spacing after we do the footnote number. \let\@sf\empty \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\ptexslash\fi % % Remove inadvertent blank space before typesetting the footnote number. \unskip \thisfootno\@sf \dofootnote }% % Don't bother with the trickery in plain.tex to not require the % footnote text as a parameter. Our footnotes don't need to be so general. % % Oh yes, they do; otherwise, @ifset (and anything else that uses % \parseargline) fails inside footnotes because the tokens are fixed when % the footnote is read. --karl, 16nov96. % \gdef\dofootnote{% \insert\footins\bgroup % We want to typeset this text as a normal paragraph, even if the % footnote reference occurs in (for example) a display environment. % So reset some parameters. \hsize=\pagewidth \interlinepenalty\interfootnotelinepenalty \splittopskip\ht\strutbox % top baseline for broken footnotes \splitmaxdepth\dp\strutbox \floatingpenalty\@MM \leftskip\z@skip \rightskip\z@skip \spaceskip\z@skip \xspaceskip\z@skip \parindent\defaultparindent % \smallfonts \rm % % Because we use hanging indentation in footnotes, a @noindent appears % to exdent this text, so make it be a no-op. makeinfo does not use % hanging indentation so @noindent can still be needed within footnote % text after an @example or the like (not that this is good style). \let\noindent = \relax % % Hang the footnote text off the number. Use \everypar in case the % footnote extends for more than one paragraph. \everypar = {\hang}% \textindent{\thisfootno}% % % Don't crash into the line above the footnote text. Since this % expands into a box, it must come within the paragraph, lest it % provide a place where TeX can split the footnote. \footstrut \futurelet\next\fo@t } }%end \catcode `\@=11 % In case a @footnote appears in a vbox, save the footnote text and create % the real \insert just after the vbox finished. Otherwise, the insertion % would be lost. % Similarly, if a @footnote appears inside an alignment, save the footnote % text to a box and make the \insert when a row of the table is finished. % And the same can be done for other insert classes. --kasal, 16nov03. % Replace the \insert primitive by a cheating macro. % Deeper inside, just make sure that the saved insertions are not spilled % out prematurely. % \def\startsavinginserts{% \ifx \insert\ptexinsert \let\insert\saveinsert \else \let\checkinserts\relax \fi } % This \insert replacement works for both \insert\footins{foo} and % \insert\footins\bgroup foo\egroup, but it doesn't work for \insert27{foo}. % \def\saveinsert#1{% \edef\next{\noexpand\savetobox \makeSAVEname#1}% \afterassignment\next % swallow the left brace \let\temp = } \def\makeSAVEname#1{\makecsname{SAVE\expandafter\gobble\string#1}} \def\savetobox#1{\global\setbox#1 = \vbox\bgroup \unvbox#1} \def\checksaveins#1{\ifvoid#1\else \placesaveins#1\fi} \def\placesaveins#1{% \ptexinsert \csname\expandafter\gobblesave\string#1\endcsname {\box#1}% } % eat @SAVE -- beware, all of them have catcode \other: { \def\dospecials{\do S\do A\do V\do E} \uncatcodespecials % ;-) \gdef\gobblesave @SAVE{} } % initialization: \def\newsaveins #1{% \edef\next{\noexpand\newsaveinsX \makeSAVEname#1}% \next } \def\newsaveinsX #1{% \csname newbox\endcsname #1% \expandafter\def\expandafter\checkinserts\expandafter{\checkinserts \checksaveins #1}% } % initialize: \let\checkinserts\empty \newsaveins\footins \newsaveins\margin % @image. We use the macros from epsf.tex to support this. % If epsf.tex is not installed and @image is used, we complain. % % Check for and read epsf.tex up front. If we read it only at @image % time, we might be inside a group, and then its definitions would get % undone and the next image would fail. \openin 1 = epsf.tex \ifeof 1 \else % Do not bother showing banner with epsf.tex v2.7k (available in % doc/epsf.tex and on ctan). \def\epsfannounce{\toks0 = }% \input epsf.tex \fi \closein 1 % % We will only complain once about lack of epsf.tex. \newif\ifwarnednoepsf \newhelp\noepsfhelp{epsf.tex must be installed for images to work. It is also included in the Texinfo distribution, or you can get it from ftp://tug.org/tex/epsf.tex.} % \def\image#1{% \ifx\epsfbox\undefined \ifwarnednoepsf \else \errhelp = \noepsfhelp \errmessage{epsf.tex not found, images will be ignored}% \global\warnednoepsftrue \fi \else \imagexxx #1,,,,,\finish \fi } % % Arguments to @image: % #1 is (mandatory) image filename; we tack on .eps extension. % #2 is (optional) width, #3 is (optional) height. % #4 is (ignored optional) html alt text. % #5 is (ignored optional) extension. % #6 is just the usual extra ignored arg for parsing this stuff. \newif\ifimagevmode \def\imagexxx#1,#2,#3,#4,#5,#6\finish{\begingroup \catcode`\^^M = 5 % in case we're inside an example \normalturnoffactive % allow _ et al. in names % If the image is by itself, center it. \ifvmode \imagevmodetrue \nobreak\medskip % Usually we'll have text after the image which will insert % \parskip glue, so insert it here too to equalize the space % above and below. \nobreak\vskip\parskip \nobreak \fi % % Leave vertical mode so that indentation from an enclosing % environment such as @quotation is respected. On the other hand, if % it's at the top level, we don't want the normal paragraph indentation. \noindent % % Output the image. \ifpdf \dopdfimage{#1}{#2}{#3}% \else % \epsfbox itself resets \epsf?size at each figure. \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi \epsfbox{#1.eps}% \fi % \ifimagevmode \medskip \fi % space after the standalone image \endgroup} % @float FLOATTYPE,LABEL,LOC ... @end float for displayed figures, tables, % etc. We don't actually implement floating yet, we always include the % float "here". But it seemed the best name for the future. % \envparseargdef\float{\eatcommaspace\eatcommaspace\dofloat#1, , ,\finish} % There may be a space before second and/or third parameter; delete it. \def\eatcommaspace#1, {#1,} % #1 is the optional FLOATTYPE, the text label for this float, typically % "Figure", "Table", "Example", etc. Can't contain commas. If omitted, % this float will not be numbered and cannot be referred to. % % #2 is the optional xref label. Also must be present for the float to % be referable. % % #3 is the optional positioning argument; for now, it is ignored. It % will somehow specify the positions allowed to float to (here, top, bottom). % % We keep a separate counter for each FLOATTYPE, which we reset at each % chapter-level command. \let\resetallfloatnos=\empty % \def\dofloat#1,#2,#3,#4\finish{% \let\thiscaption=\empty \let\thisshortcaption=\empty % % don't lose footnotes inside @float. % % BEWARE: when the floats start float, we have to issue warning whenever an % insert appears inside a float which could possibly float. --kasal, 26may04 % \startsavinginserts % % We can't be used inside a paragraph. \par % \vtop\bgroup \def\floattype{#1}% \def\floatlabel{#2}% \def\floatloc{#3}% we do nothing with this yet. % \ifx\floattype\empty \let\safefloattype=\empty \else {% % the floattype might have accents or other special characters, % but we need to use it in a control sequence name. \indexnofonts \turnoffactive \xdef\safefloattype{\floattype}% }% \fi % % If label is given but no type, we handle that as the empty type. \ifx\floatlabel\empty \else % We want each FLOATTYPE to be numbered separately (Figure 1, % Table 1, Figure 2, ...). (And if no label, no number.) % \expandafter\getfloatno\csname\safefloattype floatno\endcsname \global\advance\floatno by 1 % {% % This magic value for \lastsection is output by \setref as the % XREFLABEL-title value. \xrefX uses it to distinguish float % labels (which have a completely different output format) from % node and anchor labels. And \xrdef uses it to construct the % lists of floats. % \edef\lastsection{\floatmagic=\safefloattype}% \setref{\floatlabel}{Yfloat}% }% \fi % % start with \parskip glue, I guess. \vskip\parskip % % Don't suppress indentation if a float happens to start a section. \restorefirstparagraphindent } % we have these possibilities: % @float Foo,lbl & @caption{Cap}: Foo 1.1: Cap % @float Foo,lbl & no caption: Foo 1.1 % @float Foo & @caption{Cap}: Foo: Cap % @float Foo & no caption: Foo % @float ,lbl & Caption{Cap}: 1.1: Cap % @float ,lbl & no caption: 1.1 % @float & @caption{Cap}: Cap % @float & no caption: % \def\Efloat{% \let\floatident = \empty % % In all cases, if we have a float type, it comes first. \ifx\floattype\empty \else \def\floatident{\floattype}\fi % % If we have an xref label, the number comes next. \ifx\floatlabel\empty \else \ifx\floattype\empty \else % if also had float type, need tie first. \appendtomacro\floatident{\tie}% \fi % the number. \appendtomacro\floatident{\chaplevelprefix\the\floatno}% \fi % % Start the printed caption with what we've constructed in % \floatident, but keep it separate; we need \floatident again. \let\captionline = \floatident % \ifx\thiscaption\empty \else \ifx\floatident\empty \else \appendtomacro\captionline{: }% had ident, so need a colon between \fi % % caption text. \appendtomacro\captionline{\scanexp\thiscaption}% \fi % % If we have anything to print, print it, with space before. % Eventually this needs to become an \insert. \ifx\captionline\empty \else \vskip.5\parskip \captionline % % Space below caption. \vskip\parskip \fi % % If have an xref label, write the list of floats info. Do this % after the caption, to avoid chance of it being a breakpoint. \ifx\floatlabel\empty \else % Write the text that goes in the lof to the aux file as % \floatlabel-lof. Besides \floatident, we include the short % caption if specified, else the full caption if specified, else nothing. {% \atdummies % % since we read the caption text in the macro world, where ^^M % is turned into a normal character, we have to scan it back, so % we don't write the literal three characters "^^M" into the aux file. \scanexp{% \xdef\noexpand\gtemp{% \ifx\thisshortcaption\empty \thiscaption \else \thisshortcaption \fi }% }% \immediate\write\auxfile{@xrdef{\floatlabel-lof}{\floatident \ifx\gtemp\empty \else : \gtemp \fi}}% }% \fi \egroup % end of \vtop % % place the captured inserts % % BEWARE: when the floats start floating, we have to issue warning % whenever an insert appears inside a float which could possibly % float. --kasal, 26may04 % \checkinserts } % Append the tokens #2 to the definition of macro #1, not expanding either. % \def\appendtomacro#1#2{% \expandafter\def\expandafter#1\expandafter{#1#2}% } % @caption, @shortcaption % \def\caption{\docaption\thiscaption} \def\shortcaption{\docaption\thisshortcaption} \def\docaption{\checkenv\float \bgroup\scanargctxt\defcaption} \def\defcaption#1#2{\egroup \def#1{#2}} % The parameter is the control sequence identifying the counter we are % going to use. Create it if it doesn't exist and assign it to \floatno. \def\getfloatno#1{% \ifx#1\relax % Haven't seen this figure type before. \csname newcount\endcsname #1% % % Remember to reset this floatno at the next chap. \expandafter\gdef\expandafter\resetallfloatnos \expandafter{\resetallfloatnos #1=0 }% \fi \let\floatno#1% } % \setref calls this to get the XREFLABEL-snt value. We want an @xref % to the FLOATLABEL to expand to "Figure 3.1". We call \setref when we % first read the @float command. % \def\Yfloat{\floattype@tie \chaplevelprefix\the\floatno}% % Magic string used for the XREFLABEL-title value, so \xrefX can % distinguish floats from other xref types. \def\floatmagic{!!float!!} % #1 is the control sequence we are passed; we expand into a conditional % which is true if #1 represents a float ref. That is, the magic % \lastsection value which we \setref above. % \def\iffloat#1{\expandafter\doiffloat#1==\finish} % % #1 is (maybe) the \floatmagic string. If so, #2 will be the % (safe) float type for this float. We set \iffloattype to #2. % \def\doiffloat#1=#2=#3\finish{% \def\temp{#1}% \def\iffloattype{#2}% \ifx\temp\floatmagic } % @listoffloats FLOATTYPE - print a list of floats like a table of contents. % \parseargdef\listoffloats{% \def\floattype{#1}% floattype {% % the floattype might have accents or other special characters, % but we need to use it in a control sequence name. \indexnofonts \turnoffactive \xdef\safefloattype{\floattype}% }% % % \xrdef saves the floats as a \do-list in \floatlistSAFEFLOATTYPE. \expandafter\ifx\csname floatlist\safefloattype\endcsname \relax \ifhavexrefs % if the user said @listoffloats foo but never @float foo. \message{\linenumber No `\safefloattype' floats to list.}% \fi \else \begingroup \leftskip=\tocindent % indent these entries like a toc \let\do=\listoffloatsdo \csname floatlist\safefloattype\endcsname \endgroup \fi } % This is called on each entry in a list of floats. We're passed the % xref label, in the form LABEL-title, which is how we save it in the % aux file. We strip off the -title and look up \XRLABEL-lof, which % has the text we're supposed to typeset here. % % Figures without xref labels will not be included in the list (since % they won't appear in the aux file). % \def\listoffloatsdo#1{\listoffloatsdoentry#1\finish} \def\listoffloatsdoentry#1-title\finish{{% % Can't fully expand XR#1-lof because it can contain anything. Just % pass the control sequence. On the other hand, XR#1-pg is just the % page number, and we want to fully expand that so we can get a link % in pdf output. \toksA = \expandafter{\csname XR#1-lof\endcsname}% % % use the same \entry macro we use to generate the TOC and index. \edef\writeentry{\noexpand\entry{\the\toksA}{\csname XR#1-pg\endcsname}}% \writeentry }} \message{localization,} % For single-language documents, @documentlanguage is usually given very % early, just after @documentencoding. Single argument is the language % (de) or locale (de_DE) abbreviation. % { \catcode`\_ = \active \globaldefs=1 \parseargdef\documentlanguage{\begingroup \let_=\normalunderscore % normal _ character for filenames \tex % read txi-??.tex file in plain TeX. % Read the file by the name they passed if it exists. \openin 1 txi-#1.tex \ifeof 1 \documentlanguagetrywithoutunderscore{#1_\finish}% \else \globaldefs = 1 % everything in the txi-LL files needs to persist \input txi-#1.tex \fi \closein 1 \endgroup % end raw TeX \endgroup} % % If they passed de_DE, and txi-de_DE.tex doesn't exist, % try txi-de.tex. % \gdef\documentlanguagetrywithoutunderscore#1_#2\finish{% \openin 1 txi-#1.tex \ifeof 1 \errhelp = \nolanghelp \errmessage{Cannot read language file txi-#1.tex}% \else \globaldefs = 1 % everything in the txi-LL files needs to persist \input txi-#1.tex \fi \closein 1 } }% end of special _ catcode % \newhelp\nolanghelp{The given language definition file cannot be found or is empty. Maybe you need to install it? Putting it in the current directory should work if nowhere else does.} % This macro is called from txi-??.tex files; the first argument is the % \language name to set (without the "\lang@" prefix), the second and % third args are \{left,right}hyphenmin. % % The language names to pass are determined when the format is built. % See the etex.log file created at that time, e.g., % /usr/local/texlive/2008/texmf-var/web2c/pdftex/etex.log. % % With TeX Live 2008, etex now includes hyphenation patterns for all % available languages. This means we can support hyphenation in % Texinfo, at least to some extent. (This still doesn't solve the % accented characters problem.) % \catcode`@=11 \def\txisetlanguage#1#2#3{% % do not set the language if the name is undefined in the current TeX. \expandafter\ifx\csname lang@#1\endcsname \relax \message{no patterns for #1}% \else \global\language = \csname lang@#1\endcsname \fi % but there is no harm in adjusting the hyphenmin values regardless. \global\lefthyphenmin = #2\relax \global\righthyphenmin = #3\relax } % Helpers for encodings. % Set the catcode of characters 128 through 255 to the specified number. % \def\setnonasciicharscatcode#1{% \count255=128 \loop\ifnum\count255<256 \global\catcode\count255=#1\relax \advance\count255 by 1 \repeat } \def\setnonasciicharscatcodenonglobal#1{% \count255=128 \loop\ifnum\count255<256 \catcode\count255=#1\relax \advance\count255 by 1 \repeat } % @documentencoding sets the definition of non-ASCII characters % according to the specified encoding. % \parseargdef\documentencoding{% % Encoding being declared for the document. \def\declaredencoding{\csname #1.enc\endcsname}% % % Supported encodings: names converted to tokens in order to be able % to compare them with \ifx. \def\ascii{\csname US-ASCII.enc\endcsname}% \def\latnine{\csname ISO-8859-15.enc\endcsname}% \def\latone{\csname ISO-8859-1.enc\endcsname}% \def\lattwo{\csname ISO-8859-2.enc\endcsname}% \def\utfeight{\csname UTF-8.enc\endcsname}% % \ifx \declaredencoding \ascii \asciichardefs % \else \ifx \declaredencoding \lattwo \setnonasciicharscatcode\active \lattwochardefs % \else \ifx \declaredencoding \latone \setnonasciicharscatcode\active \latonechardefs % \else \ifx \declaredencoding \latnine \setnonasciicharscatcode\active \latninechardefs % \else \ifx \declaredencoding \utfeight \setnonasciicharscatcode\active \utfeightchardefs % \else \message{Unknown document encoding #1, ignoring.}% % \fi % utfeight \fi % latnine \fi % latone \fi % lattwo \fi % ascii } % A message to be logged when using a character that isn't available % the default font encoding (OT1). % \def\missingcharmsg#1{\message{Character missing in OT1 encoding: #1.}} % Take account of \c (plain) vs. \, (Texinfo) difference. \def\cedilla#1{\ifx\c\ptexc\c{#1}\else\,{#1}\fi} % First, make active non-ASCII characters in order for them to be % correctly categorized when TeX reads the replacement text of % macros containing the character definitions. \setnonasciicharscatcode\active % % Latin1 (ISO-8859-1) character definitions. \def\latonechardefs{% \gdef^^a0{~} \gdef^^a1{\exclamdown} \gdef^^a2{\missingcharmsg{CENT SIGN}} \gdef^^a3{{\pounds}} \gdef^^a4{\missingcharmsg{CURRENCY SIGN}} \gdef^^a5{\missingcharmsg{YEN SIGN}} \gdef^^a6{\missingcharmsg{BROKEN BAR}} \gdef^^a7{\S} \gdef^^a8{\"{}} \gdef^^a9{\copyright} \gdef^^aa{\ordf} \gdef^^ab{\guillemetleft} \gdef^^ac{$\lnot$} \gdef^^ad{\-} \gdef^^ae{\registeredsymbol} \gdef^^af{\={}} % \gdef^^b0{\textdegree} \gdef^^b1{$\pm$} \gdef^^b2{$^2$} \gdef^^b3{$^3$} \gdef^^b4{\'{}} \gdef^^b5{$\mu$} \gdef^^b6{\P} % \gdef^^b7{$^.$} \gdef^^b8{\cedilla\ } \gdef^^b9{$^1$} \gdef^^ba{\ordm} % \gdef^^bb{\guilletright} \gdef^^bc{$1\over4$} \gdef^^bd{$1\over2$} \gdef^^be{$3\over4$} \gdef^^bf{\questiondown} % \gdef^^c0{\`A} \gdef^^c1{\'A} \gdef^^c2{\^A} \gdef^^c3{\~A} \gdef^^c4{\"A} \gdef^^c5{\ringaccent A} \gdef^^c6{\AE} \gdef^^c7{\cedilla C} \gdef^^c8{\`E} \gdef^^c9{\'E} \gdef^^ca{\^E} \gdef^^cb{\"E} \gdef^^cc{\`I} \gdef^^cd{\'I} \gdef^^ce{\^I} \gdef^^cf{\"I} % \gdef^^d0{\DH} \gdef^^d1{\~N} \gdef^^d2{\`O} \gdef^^d3{\'O} \gdef^^d4{\^O} \gdef^^d5{\~O} \gdef^^d6{\"O} \gdef^^d7{$\times$} \gdef^^d8{\O} \gdef^^d9{\`U} \gdef^^da{\'U} \gdef^^db{\^U} \gdef^^dc{\"U} \gdef^^dd{\'Y} \gdef^^de{\TH} \gdef^^df{\ss} % \gdef^^e0{\`a} \gdef^^e1{\'a} \gdef^^e2{\^a} \gdef^^e3{\~a} \gdef^^e4{\"a} \gdef^^e5{\ringaccent a} \gdef^^e6{\ae} \gdef^^e7{\cedilla c} \gdef^^e8{\`e} \gdef^^e9{\'e} \gdef^^ea{\^e} \gdef^^eb{\"e} \gdef^^ec{\`{\dotless i}} \gdef^^ed{\'{\dotless i}} \gdef^^ee{\^{\dotless i}} \gdef^^ef{\"{\dotless i}} % \gdef^^f0{\dh} \gdef^^f1{\~n} \gdef^^f2{\`o} \gdef^^f3{\'o} \gdef^^f4{\^o} \gdef^^f5{\~o} \gdef^^f6{\"o} \gdef^^f7{$\div$} \gdef^^f8{\o} \gdef^^f9{\`u} \gdef^^fa{\'u} \gdef^^fb{\^u} \gdef^^fc{\"u} \gdef^^fd{\'y} \gdef^^fe{\th} \gdef^^ff{\"y} } % Latin9 (ISO-8859-15) encoding character definitions. \def\latninechardefs{% % Encoding is almost identical to Latin1. \latonechardefs % \gdef^^a4{\euro} \gdef^^a6{\v S} \gdef^^a8{\v s} \gdef^^b4{\v Z} \gdef^^b8{\v z} \gdef^^bc{\OE} \gdef^^bd{\oe} \gdef^^be{\"Y} } % Latin2 (ISO-8859-2) character definitions. \def\lattwochardefs{% \gdef^^a0{~} \gdef^^a1{\ogonek{A}} \gdef^^a2{\u{}} \gdef^^a3{\L} \gdef^^a4{\missingcharmsg{CURRENCY SIGN}} \gdef^^a5{\v L} \gdef^^a6{\'S} \gdef^^a7{\S} \gdef^^a8{\"{}} \gdef^^a9{\v S} \gdef^^aa{\cedilla S} \gdef^^ab{\v T} \gdef^^ac{\'Z} \gdef^^ad{\-} \gdef^^ae{\v Z} \gdef^^af{\dotaccent Z} % \gdef^^b0{\textdegree} \gdef^^b1{\ogonek{a}} \gdef^^b2{\ogonek{ }} \gdef^^b3{\l} \gdef^^b4{\'{}} \gdef^^b5{\v l} \gdef^^b6{\'s} \gdef^^b7{\v{}} \gdef^^b8{\cedilla\ } \gdef^^b9{\v s} \gdef^^ba{\cedilla s} \gdef^^bb{\v t} \gdef^^bc{\'z} \gdef^^bd{\H{}} \gdef^^be{\v z} \gdef^^bf{\dotaccent z} % \gdef^^c0{\'R} \gdef^^c1{\'A} \gdef^^c2{\^A} \gdef^^c3{\u A} \gdef^^c4{\"A} \gdef^^c5{\'L} \gdef^^c6{\'C} \gdef^^c7{\cedilla C} \gdef^^c8{\v C} \gdef^^c9{\'E} \gdef^^ca{\ogonek{E}} \gdef^^cb{\"E} \gdef^^cc{\v E} \gdef^^cd{\'I} \gdef^^ce{\^I} \gdef^^cf{\v D} % \gdef^^d0{\DH} \gdef^^d1{\'N} \gdef^^d2{\v N} \gdef^^d3{\'O} \gdef^^d4{\^O} \gdef^^d5{\H O} \gdef^^d6{\"O} \gdef^^d7{$\times$} \gdef^^d8{\v R} \gdef^^d9{\ringaccent U} \gdef^^da{\'U} \gdef^^db{\H U} \gdef^^dc{\"U} \gdef^^dd{\'Y} \gdef^^de{\cedilla T} \gdef^^df{\ss} % \gdef^^e0{\'r} \gdef^^e1{\'a} \gdef^^e2{\^a} \gdef^^e3{\u a} \gdef^^e4{\"a} \gdef^^e5{\'l} \gdef^^e6{\'c} \gdef^^e7{\cedilla c} \gdef^^e8{\v c} \gdef^^e9{\'e} \gdef^^ea{\ogonek{e}} \gdef^^eb{\"e} \gdef^^ec{\v e} \gdef^^ed{\'\i} \gdef^^ee{\^\i} \gdef^^ef{\v d} % \gdef^^f0{\dh} \gdef^^f1{\'n} \gdef^^f2{\v n} \gdef^^f3{\'o} \gdef^^f4{\^o} \gdef^^f5{\H o} \gdef^^f6{\"o} \gdef^^f7{$\div$} \gdef^^f8{\v r} \gdef^^f9{\ringaccent u} \gdef^^fa{\'u} \gdef^^fb{\H u} \gdef^^fc{\"u} \gdef^^fd{\'y} \gdef^^fe{\cedilla t} \gdef^^ff{\dotaccent{}} } % UTF-8 character definitions. % % This code to support UTF-8 is based on LaTeX's utf8.def, with some % changes for Texinfo conventions. It is included here under the GPL by % permission from Frank Mittelbach and the LaTeX team. % \newcount\countUTFx \newcount\countUTFy \newcount\countUTFz \gdef\UTFviiiTwoOctets#1#2{\expandafter \UTFviiiDefined\csname u8:#1\string #2\endcsname} % \gdef\UTFviiiThreeOctets#1#2#3{\expandafter \UTFviiiDefined\csname u8:#1\string #2\string #3\endcsname} % \gdef\UTFviiiFourOctets#1#2#3#4{\expandafter \UTFviiiDefined\csname u8:#1\string #2\string #3\string #4\endcsname} \gdef\UTFviiiDefined#1{% \ifx #1\relax \message{\linenumber Unicode char \string #1 not defined for Texinfo}% \else \expandafter #1% \fi } \begingroup \catcode`\~13 \catcode`\"12 \def\UTFviiiLoop{% \global\catcode\countUTFx\active \uccode`\~\countUTFx \uppercase\expandafter{\UTFviiiTmp}% \advance\countUTFx by 1 \ifnum\countUTFx < \countUTFy \expandafter\UTFviiiLoop \fi} \countUTFx = "C2 \countUTFy = "E0 \def\UTFviiiTmp{% \xdef~{\noexpand\UTFviiiTwoOctets\string~}} \UTFviiiLoop \countUTFx = "E0 \countUTFy = "F0 \def\UTFviiiTmp{% \xdef~{\noexpand\UTFviiiThreeOctets\string~}} \UTFviiiLoop \countUTFx = "F0 \countUTFy = "F4 \def\UTFviiiTmp{% \xdef~{\noexpand\UTFviiiFourOctets\string~}} \UTFviiiLoop \endgroup \begingroup \catcode`\"=12 \catcode`\<=12 \catcode`\.=12 \catcode`\,=12 \catcode`\;=12 \catcode`\!=12 \catcode`\~=13 \gdef\DeclareUnicodeCharacter#1#2{% \countUTFz = "#1\relax \wlog{\space\space defining Unicode char U+#1 (decimal \the\countUTFz)}% \begingroup \parseXMLCharref \def\UTFviiiTwoOctets##1##2{% \csname u8:##1\string ##2\endcsname}% \def\UTFviiiThreeOctets##1##2##3{% \csname u8:##1\string ##2\string ##3\endcsname}% \def\UTFviiiFourOctets##1##2##3##4{% \csname u8:##1\string ##2\string ##3\string ##4\endcsname}% \expandafter\expandafter\expandafter\expandafter \expandafter\expandafter\expandafter \gdef\UTFviiiTmp{#2}% \endgroup} \gdef\parseXMLCharref{% \ifnum\countUTFz < "A0\relax \errhelp = \EMsimple \errmessage{Cannot define Unicode char value < 00A0}% \else\ifnum\countUTFz < "800\relax \parseUTFviiiA,% \parseUTFviiiB C\UTFviiiTwoOctets.,% \else\ifnum\countUTFz < "10000\relax \parseUTFviiiA;% \parseUTFviiiA,% \parseUTFviiiB E\UTFviiiThreeOctets.{,;}% \else \parseUTFviiiA;% \parseUTFviiiA,% \parseUTFviiiA!% \parseUTFviiiB F\UTFviiiFourOctets.{!,;}% \fi\fi\fi } \gdef\parseUTFviiiA#1{% \countUTFx = \countUTFz \divide\countUTFz by 64 \countUTFy = \countUTFz \multiply\countUTFz by 64 \advance\countUTFx by -\countUTFz \advance\countUTFx by 128 \uccode `#1\countUTFx \countUTFz = \countUTFy} \gdef\parseUTFviiiB#1#2#3#4{% \advance\countUTFz by "#10\relax \uccode `#3\countUTFz \uppercase{\gdef\UTFviiiTmp{#2#3#4}}} \endgroup \def\utfeightchardefs{% \DeclareUnicodeCharacter{00A0}{\tie} \DeclareUnicodeCharacter{00A1}{\exclamdown} \DeclareUnicodeCharacter{00A3}{\pounds} \DeclareUnicodeCharacter{00A8}{\"{ }} \DeclareUnicodeCharacter{00A9}{\copyright} \DeclareUnicodeCharacter{00AA}{\ordf} \DeclareUnicodeCharacter{00AB}{\guillemetleft} \DeclareUnicodeCharacter{00AD}{\-} \DeclareUnicodeCharacter{00AE}{\registeredsymbol} \DeclareUnicodeCharacter{00AF}{\={ }} \DeclareUnicodeCharacter{00B0}{\ringaccent{ }} \DeclareUnicodeCharacter{00B4}{\'{ }} \DeclareUnicodeCharacter{00B8}{\cedilla{ }} \DeclareUnicodeCharacter{00BA}{\ordm} \DeclareUnicodeCharacter{00BB}{\guillemetright} \DeclareUnicodeCharacter{00BF}{\questiondown} \DeclareUnicodeCharacter{00C0}{\`A} \DeclareUnicodeCharacter{00C1}{\'A} \DeclareUnicodeCharacter{00C2}{\^A} \DeclareUnicodeCharacter{00C3}{\~A} \DeclareUnicodeCharacter{00C4}{\"A} \DeclareUnicodeCharacter{00C5}{\AA} \DeclareUnicodeCharacter{00C6}{\AE} \DeclareUnicodeCharacter{00C7}{\cedilla{C}} \DeclareUnicodeCharacter{00C8}{\`E} \DeclareUnicodeCharacter{00C9}{\'E} \DeclareUnicodeCharacter{00CA}{\^E} \DeclareUnicodeCharacter{00CB}{\"E} \DeclareUnicodeCharacter{00CC}{\`I} \DeclareUnicodeCharacter{00CD}{\'I} \DeclareUnicodeCharacter{00CE}{\^I} \DeclareUnicodeCharacter{00CF}{\"I} \DeclareUnicodeCharacter{00D0}{\DH} \DeclareUnicodeCharacter{00D1}{\~N} \DeclareUnicodeCharacter{00D2}{\`O} \DeclareUnicodeCharacter{00D3}{\'O} \DeclareUnicodeCharacter{00D4}{\^O} \DeclareUnicodeCharacter{00D5}{\~O} \DeclareUnicodeCharacter{00D6}{\"O} \DeclareUnicodeCharacter{00D8}{\O} \DeclareUnicodeCharacter{00D9}{\`U} \DeclareUnicodeCharacter{00DA}{\'U} \DeclareUnicodeCharacter{00DB}{\^U} \DeclareUnicodeCharacter{00DC}{\"U} \DeclareUnicodeCharacter{00DD}{\'Y} \DeclareUnicodeCharacter{00DE}{\TH} \DeclareUnicodeCharacter{00DF}{\ss} \DeclareUnicodeCharacter{00E0}{\`a} \DeclareUnicodeCharacter{00E1}{\'a} \DeclareUnicodeCharacter{00E2}{\^a} \DeclareUnicodeCharacter{00E3}{\~a} \DeclareUnicodeCharacter{00E4}{\"a} \DeclareUnicodeCharacter{00E5}{\aa} \DeclareUnicodeCharacter{00E6}{\ae} \DeclareUnicodeCharacter{00E7}{\cedilla{c}} \DeclareUnicodeCharacter{00E8}{\`e} \DeclareUnicodeCharacter{00E9}{\'e} \DeclareUnicodeCharacter{00EA}{\^e} \DeclareUnicodeCharacter{00EB}{\"e} \DeclareUnicodeCharacter{00EC}{\`{\dotless{i}}} \DeclareUnicodeCharacter{00ED}{\'{\dotless{i}}} \DeclareUnicodeCharacter{00EE}{\^{\dotless{i}}} \DeclareUnicodeCharacter{00EF}{\"{\dotless{i}}} \DeclareUnicodeCharacter{00F0}{\dh} \DeclareUnicodeCharacter{00F1}{\~n} \DeclareUnicodeCharacter{00F2}{\`o} \DeclareUnicodeCharacter{00F3}{\'o} \DeclareUnicodeCharacter{00F4}{\^o} \DeclareUnicodeCharacter{00F5}{\~o} \DeclareUnicodeCharacter{00F6}{\"o} \DeclareUnicodeCharacter{00F8}{\o} \DeclareUnicodeCharacter{00F9}{\`u} \DeclareUnicodeCharacter{00FA}{\'u} \DeclareUnicodeCharacter{00FB}{\^u} \DeclareUnicodeCharacter{00FC}{\"u} \DeclareUnicodeCharacter{00FD}{\'y} \DeclareUnicodeCharacter{00FE}{\th} \DeclareUnicodeCharacter{00FF}{\"y} \DeclareUnicodeCharacter{0100}{\=A} \DeclareUnicodeCharacter{0101}{\=a} \DeclareUnicodeCharacter{0102}{\u{A}} \DeclareUnicodeCharacter{0103}{\u{a}} \DeclareUnicodeCharacter{0104}{\ogonek{A}} \DeclareUnicodeCharacter{0105}{\ogonek{a}} \DeclareUnicodeCharacter{0106}{\'C} \DeclareUnicodeCharacter{0107}{\'c} \DeclareUnicodeCharacter{0108}{\^C} \DeclareUnicodeCharacter{0109}{\^c} \DeclareUnicodeCharacter{0118}{\ogonek{E}} \DeclareUnicodeCharacter{0119}{\ogonek{e}} \DeclareUnicodeCharacter{010A}{\dotaccent{C}} \DeclareUnicodeCharacter{010B}{\dotaccent{c}} \DeclareUnicodeCharacter{010C}{\v{C}} \DeclareUnicodeCharacter{010D}{\v{c}} \DeclareUnicodeCharacter{010E}{\v{D}} \DeclareUnicodeCharacter{0112}{\=E} \DeclareUnicodeCharacter{0113}{\=e} \DeclareUnicodeCharacter{0114}{\u{E}} \DeclareUnicodeCharacter{0115}{\u{e}} \DeclareUnicodeCharacter{0116}{\dotaccent{E}} \DeclareUnicodeCharacter{0117}{\dotaccent{e}} \DeclareUnicodeCharacter{011A}{\v{E}} \DeclareUnicodeCharacter{011B}{\v{e}} \DeclareUnicodeCharacter{011C}{\^G} \DeclareUnicodeCharacter{011D}{\^g} \DeclareUnicodeCharacter{011E}{\u{G}} \DeclareUnicodeCharacter{011F}{\u{g}} \DeclareUnicodeCharacter{0120}{\dotaccent{G}} \DeclareUnicodeCharacter{0121}{\dotaccent{g}} \DeclareUnicodeCharacter{0124}{\^H} \DeclareUnicodeCharacter{0125}{\^h} \DeclareUnicodeCharacter{0128}{\~I} \DeclareUnicodeCharacter{0129}{\~{\dotless{i}}} \DeclareUnicodeCharacter{012A}{\=I} \DeclareUnicodeCharacter{012B}{\={\dotless{i}}} \DeclareUnicodeCharacter{012C}{\u{I}} \DeclareUnicodeCharacter{012D}{\u{\dotless{i}}} \DeclareUnicodeCharacter{0130}{\dotaccent{I}} \DeclareUnicodeCharacter{0131}{\dotless{i}} \DeclareUnicodeCharacter{0132}{IJ} \DeclareUnicodeCharacter{0133}{ij} \DeclareUnicodeCharacter{0134}{\^J} \DeclareUnicodeCharacter{0135}{\^{\dotless{j}}} \DeclareUnicodeCharacter{0139}{\'L} \DeclareUnicodeCharacter{013A}{\'l} \DeclareUnicodeCharacter{0141}{\L} \DeclareUnicodeCharacter{0142}{\l} \DeclareUnicodeCharacter{0143}{\'N} \DeclareUnicodeCharacter{0144}{\'n} \DeclareUnicodeCharacter{0147}{\v{N}} \DeclareUnicodeCharacter{0148}{\v{n}} \DeclareUnicodeCharacter{014C}{\=O} \DeclareUnicodeCharacter{014D}{\=o} \DeclareUnicodeCharacter{014E}{\u{O}} \DeclareUnicodeCharacter{014F}{\u{o}} \DeclareUnicodeCharacter{0150}{\H{O}} \DeclareUnicodeCharacter{0151}{\H{o}} \DeclareUnicodeCharacter{0152}{\OE} \DeclareUnicodeCharacter{0153}{\oe} \DeclareUnicodeCharacter{0154}{\'R} \DeclareUnicodeCharacter{0155}{\'r} \DeclareUnicodeCharacter{0158}{\v{R}} \DeclareUnicodeCharacter{0159}{\v{r}} \DeclareUnicodeCharacter{015A}{\'S} \DeclareUnicodeCharacter{015B}{\'s} \DeclareUnicodeCharacter{015C}{\^S} \DeclareUnicodeCharacter{015D}{\^s} \DeclareUnicodeCharacter{015E}{\cedilla{S}} \DeclareUnicodeCharacter{015F}{\cedilla{s}} \DeclareUnicodeCharacter{0160}{\v{S}} \DeclareUnicodeCharacter{0161}{\v{s}} \DeclareUnicodeCharacter{0162}{\cedilla{t}} \DeclareUnicodeCharacter{0163}{\cedilla{T}} \DeclareUnicodeCharacter{0164}{\v{T}} \DeclareUnicodeCharacter{0168}{\~U} \DeclareUnicodeCharacter{0169}{\~u} \DeclareUnicodeCharacter{016A}{\=U} \DeclareUnicodeCharacter{016B}{\=u} \DeclareUnicodeCharacter{016C}{\u{U}} \DeclareUnicodeCharacter{016D}{\u{u}} \DeclareUnicodeCharacter{016E}{\ringaccent{U}} \DeclareUnicodeCharacter{016F}{\ringaccent{u}} \DeclareUnicodeCharacter{0170}{\H{U}} \DeclareUnicodeCharacter{0171}{\H{u}} \DeclareUnicodeCharacter{0174}{\^W} \DeclareUnicodeCharacter{0175}{\^w} \DeclareUnicodeCharacter{0176}{\^Y} \DeclareUnicodeCharacter{0177}{\^y} \DeclareUnicodeCharacter{0178}{\"Y} \DeclareUnicodeCharacter{0179}{\'Z} \DeclareUnicodeCharacter{017A}{\'z} \DeclareUnicodeCharacter{017B}{\dotaccent{Z}} \DeclareUnicodeCharacter{017C}{\dotaccent{z}} \DeclareUnicodeCharacter{017D}{\v{Z}} \DeclareUnicodeCharacter{017E}{\v{z}} \DeclareUnicodeCharacter{01C4}{D\v{Z}} \DeclareUnicodeCharacter{01C5}{D\v{z}} \DeclareUnicodeCharacter{01C6}{d\v{z}} \DeclareUnicodeCharacter{01C7}{LJ} \DeclareUnicodeCharacter{01C8}{Lj} \DeclareUnicodeCharacter{01C9}{lj} \DeclareUnicodeCharacter{01CA}{NJ} \DeclareUnicodeCharacter{01CB}{Nj} \DeclareUnicodeCharacter{01CC}{nj} \DeclareUnicodeCharacter{01CD}{\v{A}} \DeclareUnicodeCharacter{01CE}{\v{a}} \DeclareUnicodeCharacter{01CF}{\v{I}} \DeclareUnicodeCharacter{01D0}{\v{\dotless{i}}} \DeclareUnicodeCharacter{01D1}{\v{O}} \DeclareUnicodeCharacter{01D2}{\v{o}} \DeclareUnicodeCharacter{01D3}{\v{U}} \DeclareUnicodeCharacter{01D4}{\v{u}} \DeclareUnicodeCharacter{01E2}{\={\AE}} \DeclareUnicodeCharacter{01E3}{\={\ae}} \DeclareUnicodeCharacter{01E6}{\v{G}} \DeclareUnicodeCharacter{01E7}{\v{g}} \DeclareUnicodeCharacter{01E8}{\v{K}} \DeclareUnicodeCharacter{01E9}{\v{k}} \DeclareUnicodeCharacter{01F0}{\v{\dotless{j}}} \DeclareUnicodeCharacter{01F1}{DZ} \DeclareUnicodeCharacter{01F2}{Dz} \DeclareUnicodeCharacter{01F3}{dz} \DeclareUnicodeCharacter{01F4}{\'G} \DeclareUnicodeCharacter{01F5}{\'g} \DeclareUnicodeCharacter{01F8}{\`N} \DeclareUnicodeCharacter{01F9}{\`n} \DeclareUnicodeCharacter{01FC}{\'{\AE}} \DeclareUnicodeCharacter{01FD}{\'{\ae}} \DeclareUnicodeCharacter{01FE}{\'{\O}} \DeclareUnicodeCharacter{01FF}{\'{\o}} \DeclareUnicodeCharacter{021E}{\v{H}} \DeclareUnicodeCharacter{021F}{\v{h}} \DeclareUnicodeCharacter{0226}{\dotaccent{A}} \DeclareUnicodeCharacter{0227}{\dotaccent{a}} \DeclareUnicodeCharacter{0228}{\cedilla{E}} \DeclareUnicodeCharacter{0229}{\cedilla{e}} \DeclareUnicodeCharacter{022E}{\dotaccent{O}} \DeclareUnicodeCharacter{022F}{\dotaccent{o}} \DeclareUnicodeCharacter{0232}{\=Y} \DeclareUnicodeCharacter{0233}{\=y} \DeclareUnicodeCharacter{0237}{\dotless{j}} \DeclareUnicodeCharacter{02DB}{\ogonek{ }} \DeclareUnicodeCharacter{1E02}{\dotaccent{B}} \DeclareUnicodeCharacter{1E03}{\dotaccent{b}} \DeclareUnicodeCharacter{1E04}{\udotaccent{B}} \DeclareUnicodeCharacter{1E05}{\udotaccent{b}} \DeclareUnicodeCharacter{1E06}{\ubaraccent{B}} \DeclareUnicodeCharacter{1E07}{\ubaraccent{b}} \DeclareUnicodeCharacter{1E0A}{\dotaccent{D}} \DeclareUnicodeCharacter{1E0B}{\dotaccent{d}} \DeclareUnicodeCharacter{1E0C}{\udotaccent{D}} \DeclareUnicodeCharacter{1E0D}{\udotaccent{d}} \DeclareUnicodeCharacter{1E0E}{\ubaraccent{D}} \DeclareUnicodeCharacter{1E0F}{\ubaraccent{d}} \DeclareUnicodeCharacter{1E1E}{\dotaccent{F}} \DeclareUnicodeCharacter{1E1F}{\dotaccent{f}} \DeclareUnicodeCharacter{1E20}{\=G} \DeclareUnicodeCharacter{1E21}{\=g} \DeclareUnicodeCharacter{1E22}{\dotaccent{H}} \DeclareUnicodeCharacter{1E23}{\dotaccent{h}} \DeclareUnicodeCharacter{1E24}{\udotaccent{H}} \DeclareUnicodeCharacter{1E25}{\udotaccent{h}} \DeclareUnicodeCharacter{1E26}{\"H} \DeclareUnicodeCharacter{1E27}{\"h} \DeclareUnicodeCharacter{1E30}{\'K} \DeclareUnicodeCharacter{1E31}{\'k} \DeclareUnicodeCharacter{1E32}{\udotaccent{K}} \DeclareUnicodeCharacter{1E33}{\udotaccent{k}} \DeclareUnicodeCharacter{1E34}{\ubaraccent{K}} \DeclareUnicodeCharacter{1E35}{\ubaraccent{k}} \DeclareUnicodeCharacter{1E36}{\udotaccent{L}} \DeclareUnicodeCharacter{1E37}{\udotaccent{l}} \DeclareUnicodeCharacter{1E3A}{\ubaraccent{L}} \DeclareUnicodeCharacter{1E3B}{\ubaraccent{l}} \DeclareUnicodeCharacter{1E3E}{\'M} \DeclareUnicodeCharacter{1E3F}{\'m} \DeclareUnicodeCharacter{1E40}{\dotaccent{M}} \DeclareUnicodeCharacter{1E41}{\dotaccent{m}} \DeclareUnicodeCharacter{1E42}{\udotaccent{M}} \DeclareUnicodeCharacter{1E43}{\udotaccent{m}} \DeclareUnicodeCharacter{1E44}{\dotaccent{N}} \DeclareUnicodeCharacter{1E45}{\dotaccent{n}} \DeclareUnicodeCharacter{1E46}{\udotaccent{N}} \DeclareUnicodeCharacter{1E47}{\udotaccent{n}} \DeclareUnicodeCharacter{1E48}{\ubaraccent{N}} \DeclareUnicodeCharacter{1E49}{\ubaraccent{n}} \DeclareUnicodeCharacter{1E54}{\'P} \DeclareUnicodeCharacter{1E55}{\'p} \DeclareUnicodeCharacter{1E56}{\dotaccent{P}} \DeclareUnicodeCharacter{1E57}{\dotaccent{p}} \DeclareUnicodeCharacter{1E58}{\dotaccent{R}} \DeclareUnicodeCharacter{1E59}{\dotaccent{r}} \DeclareUnicodeCharacter{1E5A}{\udotaccent{R}} \DeclareUnicodeCharacter{1E5B}{\udotaccent{r}} \DeclareUnicodeCharacter{1E5E}{\ubaraccent{R}} \DeclareUnicodeCharacter{1E5F}{\ubaraccent{r}} \DeclareUnicodeCharacter{1E60}{\dotaccent{S}} \DeclareUnicodeCharacter{1E61}{\dotaccent{s}} \DeclareUnicodeCharacter{1E62}{\udotaccent{S}} \DeclareUnicodeCharacter{1E63}{\udotaccent{s}} \DeclareUnicodeCharacter{1E6A}{\dotaccent{T}} \DeclareUnicodeCharacter{1E6B}{\dotaccent{t}} \DeclareUnicodeCharacter{1E6C}{\udotaccent{T}} \DeclareUnicodeCharacter{1E6D}{\udotaccent{t}} \DeclareUnicodeCharacter{1E6E}{\ubaraccent{T}} \DeclareUnicodeCharacter{1E6F}{\ubaraccent{t}} \DeclareUnicodeCharacter{1E7C}{\~V} \DeclareUnicodeCharacter{1E7D}{\~v} \DeclareUnicodeCharacter{1E7E}{\udotaccent{V}} \DeclareUnicodeCharacter{1E7F}{\udotaccent{v}} \DeclareUnicodeCharacter{1E80}{\`W} \DeclareUnicodeCharacter{1E81}{\`w} \DeclareUnicodeCharacter{1E82}{\'W} \DeclareUnicodeCharacter{1E83}{\'w} \DeclareUnicodeCharacter{1E84}{\"W} \DeclareUnicodeCharacter{1E85}{\"w} \DeclareUnicodeCharacter{1E86}{\dotaccent{W}} \DeclareUnicodeCharacter{1E87}{\dotaccent{w}} \DeclareUnicodeCharacter{1E88}{\udotaccent{W}} \DeclareUnicodeCharacter{1E89}{\udotaccent{w}} \DeclareUnicodeCharacter{1E8A}{\dotaccent{X}} \DeclareUnicodeCharacter{1E8B}{\dotaccent{x}} \DeclareUnicodeCharacter{1E8C}{\"X} \DeclareUnicodeCharacter{1E8D}{\"x} \DeclareUnicodeCharacter{1E8E}{\dotaccent{Y}} \DeclareUnicodeCharacter{1E8F}{\dotaccent{y}} \DeclareUnicodeCharacter{1E90}{\^Z} \DeclareUnicodeCharacter{1E91}{\^z} \DeclareUnicodeCharacter{1E92}{\udotaccent{Z}} \DeclareUnicodeCharacter{1E93}{\udotaccent{z}} \DeclareUnicodeCharacter{1E94}{\ubaraccent{Z}} \DeclareUnicodeCharacter{1E95}{\ubaraccent{z}} \DeclareUnicodeCharacter{1E96}{\ubaraccent{h}} \DeclareUnicodeCharacter{1E97}{\"t} \DeclareUnicodeCharacter{1E98}{\ringaccent{w}} \DeclareUnicodeCharacter{1E99}{\ringaccent{y}} \DeclareUnicodeCharacter{1EA0}{\udotaccent{A}} \DeclareUnicodeCharacter{1EA1}{\udotaccent{a}} \DeclareUnicodeCharacter{1EB8}{\udotaccent{E}} \DeclareUnicodeCharacter{1EB9}{\udotaccent{e}} \DeclareUnicodeCharacter{1EBC}{\~E} \DeclareUnicodeCharacter{1EBD}{\~e} \DeclareUnicodeCharacter{1ECA}{\udotaccent{I}} \DeclareUnicodeCharacter{1ECB}{\udotaccent{i}} \DeclareUnicodeCharacter{1ECC}{\udotaccent{O}} \DeclareUnicodeCharacter{1ECD}{\udotaccent{o}} \DeclareUnicodeCharacter{1EE4}{\udotaccent{U}} \DeclareUnicodeCharacter{1EE5}{\udotaccent{u}} \DeclareUnicodeCharacter{1EF2}{\`Y} \DeclareUnicodeCharacter{1EF3}{\`y} \DeclareUnicodeCharacter{1EF4}{\udotaccent{Y}} \DeclareUnicodeCharacter{1EF8}{\~Y} \DeclareUnicodeCharacter{1EF9}{\~y} \DeclareUnicodeCharacter{2013}{--} \DeclareUnicodeCharacter{2014}{---} \DeclareUnicodeCharacter{2018}{\quoteleft} \DeclareUnicodeCharacter{2019}{\quoteright} \DeclareUnicodeCharacter{201A}{\quotesinglbase} \DeclareUnicodeCharacter{201C}{\quotedblleft} \DeclareUnicodeCharacter{201D}{\quotedblright} \DeclareUnicodeCharacter{201E}{\quotedblbase} \DeclareUnicodeCharacter{2022}{\bullet} \DeclareUnicodeCharacter{2026}{\dots} \DeclareUnicodeCharacter{2039}{\guilsinglleft} \DeclareUnicodeCharacter{203A}{\guilsinglright} \DeclareUnicodeCharacter{20AC}{\euro} \DeclareUnicodeCharacter{2192}{\expansion} \DeclareUnicodeCharacter{21D2}{\result} \DeclareUnicodeCharacter{2212}{\minus} \DeclareUnicodeCharacter{2217}{\point} \DeclareUnicodeCharacter{2261}{\equiv} }% end of \utfeightchardefs % US-ASCII character definitions. \def\asciichardefs{% nothing need be done \relax } % Make non-ASCII characters printable again for compatibility with % existing Texinfo documents that may use them, even without declaring a % document encoding. % \setnonasciicharscatcode \other \message{formatting,} \newdimen\defaultparindent \defaultparindent = 15pt \chapheadingskip = 15pt plus 4pt minus 2pt \secheadingskip = 12pt plus 3pt minus 2pt \subsecheadingskip = 9pt plus 2pt minus 2pt % Prevent underfull vbox error messages. \vbadness = 10000 % Don't be so finicky about underfull hboxes, either. \hbadness = 2000 % Following George Bush, get rid of widows and orphans. \widowpenalty=10000 \clubpenalty=10000 % Use TeX 3.0's \emergencystretch to help line breaking, but if we're % using an old version of TeX, don't do anything. We want the amount of % stretch added to depend on the line length, hence the dependence on % \hsize. We call this whenever the paper size is set. % \def\setemergencystretch{% \ifx\emergencystretch\thisisundefined % Allow us to assign to \emergencystretch anyway. \def\emergencystretch{\dimen0}% \else \emergencystretch = .15\hsize \fi } % Parameters in order: 1) textheight; 2) textwidth; % 3) voffset; 4) hoffset; 5) binding offset; 6) topskip; % 7) physical page height; 8) physical page width. % % We also call \setleading{\textleading}, so the caller should define % \textleading. The caller should also set \parskip. % \def\internalpagesizes#1#2#3#4#5#6#7#8{% \voffset = #3\relax \topskip = #6\relax \splittopskip = \topskip % \vsize = #1\relax \advance\vsize by \topskip \outervsize = \vsize \advance\outervsize by 2\topandbottommargin \pageheight = \vsize % \hsize = #2\relax \outerhsize = \hsize \advance\outerhsize by 0.5in \pagewidth = \hsize % \normaloffset = #4\relax \bindingoffset = #5\relax % \ifpdf \pdfpageheight #7\relax \pdfpagewidth #8\relax % if we don't reset these, they will remain at "1 true in" of % whatever layout pdftex was dumped with. \pdfhorigin = 1 true in \pdfvorigin = 1 true in \fi % \setleading{\textleading} % \parindent = \defaultparindent \setemergencystretch } % @letterpaper (the default). \def\letterpaper{{\globaldefs = 1 \parskip = 3pt plus 2pt minus 1pt \textleading = 13.2pt % % If page is nothing but text, make it come out even. \internalpagesizes{607.2pt}{6in}% that's 46 lines {\voffset}{.25in}% {\bindingoffset}{36pt}% {11in}{8.5in}% }} % Use @smallbook to reset parameters for 7x9.25 trim size. \def\smallbook{{\globaldefs = 1 \parskip = 2pt plus 1pt \textleading = 12pt % \internalpagesizes{7.5in}{5in}% {-.2in}{0in}% {\bindingoffset}{16pt}% {9.25in}{7in}% % \lispnarrowing = 0.3in \tolerance = 700 \hfuzz = 1pt \contentsrightmargin = 0pt \defbodyindent = .5cm }} % Use @smallerbook to reset parameters for 6x9 trim size. % (Just testing, parameters still in flux.) \def\smallerbook{{\globaldefs = 1 \parskip = 1.5pt plus 1pt \textleading = 12pt % \internalpagesizes{7.4in}{4.8in}% {-.2in}{-.4in}% {0pt}{14pt}% {9in}{6in}% % \lispnarrowing = 0.25in \tolerance = 700 \hfuzz = 1pt \contentsrightmargin = 0pt \defbodyindent = .4cm }} % Use @afourpaper to print on European A4 paper. \def\afourpaper{{\globaldefs = 1 \parskip = 3pt plus 2pt minus 1pt \textleading = 13.2pt % % Double-side printing via postscript on Laserjet 4050 % prints double-sided nicely when \bindingoffset=10mm and \hoffset=-6mm. % To change the settings for a different printer or situation, adjust % \normaloffset until the front-side and back-side texts align. Then % do the same for \bindingoffset. You can set these for testing in % your texinfo source file like this: % @tex % \global\normaloffset = -6mm % \global\bindingoffset = 10mm % @end tex \internalpagesizes{673.2pt}{160mm}% that's 51 lines {\voffset}{\hoffset}% {\bindingoffset}{44pt}% {297mm}{210mm}% % \tolerance = 700 \hfuzz = 1pt \contentsrightmargin = 0pt \defbodyindent = 5mm }} % Use @afivepaper to print on European A5 paper. % From romildo@urano.iceb.ufop.br, 2 July 2000. % He also recommends making @example and @lisp be small. \def\afivepaper{{\globaldefs = 1 \parskip = 2pt plus 1pt minus 0.1pt \textleading = 12.5pt % \internalpagesizes{160mm}{120mm}% {\voffset}{\hoffset}% {\bindingoffset}{8pt}% {210mm}{148mm}% % \lispnarrowing = 0.2in \tolerance = 800 \hfuzz = 1.2pt \contentsrightmargin = 0pt \defbodyindent = 2mm \tableindent = 12mm }} % A specific text layout, 24x15cm overall, intended for A4 paper. \def\afourlatex{{\globaldefs = 1 \afourpaper \internalpagesizes{237mm}{150mm}% {\voffset}{4.6mm}% {\bindingoffset}{7mm}% {297mm}{210mm}% % % Must explicitly reset to 0 because we call \afourpaper. \globaldefs = 0 }} % Use @afourwide to print on A4 paper in landscape format. \def\afourwide{{\globaldefs = 1 \afourpaper \internalpagesizes{241mm}{165mm}% {\voffset}{-2.95mm}% {\bindingoffset}{7mm}% {297mm}{210mm}% \globaldefs = 0 }} % @pagesizes TEXTHEIGHT[,TEXTWIDTH] % Perhaps we should allow setting the margins, \topskip, \parskip, % and/or leading, also. Or perhaps we should compute them somehow. % \parseargdef\pagesizes{\pagesizesyyy #1,,\finish} \def\pagesizesyyy#1,#2,#3\finish{{% \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi \globaldefs = 1 % \parskip = 3pt plus 2pt minus 1pt \setleading{\textleading}% % \dimen0 = #1\relax \advance\dimen0 by \voffset % \dimen2 = \hsize \advance\dimen2 by \normaloffset % \internalpagesizes{#1}{\hsize}% {\voffset}{\normaloffset}% {\bindingoffset}{44pt}% {\dimen0}{\dimen2}% }} % Set default to letter. % \letterpaper \message{and turning on texinfo input format.} % DEL is a comment character, in case @c does not suffice. \catcode`\^^? = 14 % Define macros to output various characters with catcode for normal text. \catcode`\"=\other \catcode`\~=\other \catcode`\^=\other \catcode`\_=\other \catcode`\|=\other \catcode`\<=\other \catcode`\>=\other \catcode`\+=\other \catcode`\$=\other \def\normaldoublequote{"} \def\normaltilde{~} \def\normalcaret{^} \def\normalunderscore{_} \def\normalverticalbar{|} \def\normalless{<} \def\normalgreater{>} \def\normalplus{+} \def\normaldollar{$}%$ font-lock fix % This macro is used to make a character print one way in \tt % (where it can probably be output as-is), and another way in other fonts, % where something hairier probably needs to be done. % % #1 is what to print if we are indeed using \tt; #2 is what to print % otherwise. Since all the Computer Modern typewriter fonts have zero % interword stretch (and shrink), and it is reasonable to expect all % typewriter fonts to have this, we can check that font parameter. % \def\ifusingtt#1#2{\ifdim \fontdimen3\font=0pt #1\else #2\fi} % Same as above, but check for italic font. Actually this also catches % non-italic slanted fonts since it is impossible to distinguish them from % italic fonts. But since this is only used by $ and it uses \sl anyway % this is not a problem. \def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi} % Turn off all special characters except @ % (and those which the user can use as if they were ordinary). % Most of these we simply print from the \tt font, but for some, we can % use math or other variants that look better in normal text. \catcode`\"=\active \def\activedoublequote{{\tt\char34}} \let"=\activedoublequote \catcode`\~=\active \def~{{\tt\char126}} \chardef\hat=`\^ \catcode`\^=\active \def^{{\tt \hat}} \catcode`\_=\active \def_{\ifusingtt\normalunderscore\_} \let\realunder=_ % Subroutine for the previous macro. \def\_{\leavevmode \kern.07em \vbox{\hrule width.3em height.1ex}\kern .07em } \catcode`\|=\active \def|{{\tt\char124}} \chardef \less=`\< \catcode`\<=\active \def<{{\tt \less}} \chardef \gtr=`\> \catcode`\>=\active \def>{{\tt \gtr}} \catcode`\+=\active \def+{{\tt \char 43}} \catcode`\$=\active \def${\ifusingit{{\sl\$}}\normaldollar}%$ font-lock fix % If a .fmt file is being used, characters that might appear in a file % name cannot be active until we have parsed the command line. % So turn them off again, and have \everyjob (or @setfilename) turn them on. % \otherifyactive is called near the end of this file. \def\otherifyactive{\catcode`+=\other \catcode`\_=\other} % Used sometimes to turn off (effectively) the active characters even after % parsing them. \def\turnoffactive{% \normalturnoffactive \otherbackslash } \catcode`\@=0 % \backslashcurfont outputs one backslash character in current font, % as in \char`\\. \global\chardef\backslashcurfont=`\\ \global\let\rawbackslashxx=\backslashcurfont % let existing .??s files work % \realbackslash is an actual character `\' with catcode other, and % \doublebackslash is two of them (for the pdf outlines). {\catcode`\\=\other @gdef@realbackslash{\} @gdef@doublebackslash{\\}} % In texinfo, backslash is an active character; it prints the backslash % in fixed width font. \catcode`\\=\active @def@normalbackslash{{@tt@backslashcurfont}} % On startup, @fixbackslash assigns: % @let \ = @normalbackslash % \rawbackslash defines an active \ to do \backslashcurfont. % \otherbackslash defines an active \ to be a literal `\' character with % catcode other. @gdef@rawbackslash{@let\=@backslashcurfont} @gdef@otherbackslash{@let\=@realbackslash} % Same as @turnoffactive except outputs \ as {\tt\char`\\} instead of % the literal character `\'. % @def@normalturnoffactive{% @let\=@normalbackslash @let"=@normaldoublequote @let~=@normaltilde @let^=@normalcaret @let_=@normalunderscore @let|=@normalverticalbar @let<=@normalless @let>=@normalgreater @let+=@normalplus @let$=@normaldollar %$ font-lock fix @markupsetuplqdefault @markupsetuprqdefault @unsepspaces } % Make _ and + \other characters, temporarily. % This is canceled by @fixbackslash. @otherifyactive % If a .fmt file is being used, we don't want the `\input texinfo' to show up. % That is what \eatinput is for; after that, the `\' should revert to printing % a backslash. % @gdef@eatinput input texinfo{@fixbackslash} @global@let\ = @eatinput % On the other hand, perhaps the file did not have a `\input texinfo'. Then % the first `\' in the file would cause an error. This macro tries to fix % that, assuming it is called before the first `\' could plausibly occur. % Also turn back on active characters that might appear in the input % file name, in case not using a pre-dumped format. % @gdef@fixbackslash{% @ifx\@eatinput @let\ = @normalbackslash @fi @catcode`+=@active @catcode`@_=@active } % Say @foo, not \foo, in error messages. @escapechar = `@@ % These look ok in all fonts, so just make them not special. @catcode`@& = @other @catcode`@# = @other @catcode`@% = @other @c Finally, make ` and ' active, so that txicodequoteundirected and @c txicodequotebacktick work right in, e.g., @w{@code{`foo'}}. If we @c don't make ` and ' active, @code will not get them as active chars. @c Do this last of all since we use ` in the previous @catcode assignments. @catcode`@'=@active @catcode`@`=@active @markupsetuplqdefault @markupsetuprqdefault @c Local variables: @c eval: (add-hook 'write-file-hooks 'time-stamp) @c page-delimiter: "^\\\\message" @c time-stamp-start: "def\\\\texinfoversion{" @c time-stamp-format: "%:y-%02m-%02d.%02H" @c time-stamp-end: "}" @c End: @c vim:sw=2: @ignore arch-tag: e1b36e32-c96e-4135-a41a-0b2efa2ea115 @end ignore lttng-ust-2.4.0/config/ltversion.m40000644000175000017500000000126211703074434014137 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) ]) lttng-ust-2.4.0/config/install-sh0000755000175000017500000003253711654550531013667 00000000000000#!/bin/sh # install - install a program, script, or datafile scriptversion=2009-04-28.21; # 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 $stripprog installed files. -t DIRECTORY install into DIRECTORY. -T report an error if DSTFILE is a directory. 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It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$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"; 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 :; 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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 "$enable_shared" = no; then # Fast installation is not necessary enable_fast_install=needless fi _LT_TAGDECL([], [hardcode_action], [0], [How to hardcode a shared library path into an executable]) ])# _LT_LINKER_HARDCODE_LIBPATH # _LT_CMD_STRIPLIB # ---------------- m4_defun([_LT_CMD_STRIPLIB], [m4_require([_LT_DECL_EGREP]) striplib= old_striplib= AC_MSG_CHECKING([whether stripping libraries is possible]) if test -n "$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" AC_MSG_RESULT([yes]) 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" AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi ;; *) AC_MSG_RESULT([no]) ;; esac fi _LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) _LT_DECL([], [striplib], [1]) ])# _LT_CMD_STRIPLIB # _LT_SYS_DYNAMIC_LINKER([TAG]) # ----------------------------- # PORTME Fill in your ld.so characteristics m4_defun([_LT_SYS_DYNAMIC_LINKER], [AC_REQUIRE([AC_CANONICAL_HOST])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl m4_require([_LT_DECL_OBJDUMP])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_CHECK_SHELL_FEATURES])dnl AC_MSG_CHECKING([dynamic linker characteristics]) m4_if([$1], [], [ if test "$GCC" = yes; 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esac ;; 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' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; 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${libsuff}" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='${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 $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no # Some binutils ld are patched to set DT_RUNPATH AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], [lt_cv_shlibpath_overrides_runpath=no save_LDFLAGS=$LDFLAGS save_libdir=$libdir eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], [lt_cv_shlibpath_overrides_runpath=yes])]) LDFLAGS=$save_LDFLAGS libdir=$save_libdir ]) 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 $lt_ld_extra" fi # We used to test for /lib/ld.so.1 and disable shared libraries on # powerpc, because MkLinux only supported shared libraries with the # GNU dynamic linker. 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newsos6) version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='${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. 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 AC_MSG_RESULT([$dynamic_linker]) test "$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 _LT_DECL([], [variables_saved_for_relink], [1], [Variables whose values should be saved in libtool wrapper scripts and restored at link time]) _LT_DECL([], [need_lib_prefix], [0], [Do we need the "lib" prefix for modules?]) _LT_DECL([], [need_version], [0], [Do we need a version for libraries?]) _LT_DECL([], [version_type], [0], [Library versioning type]) _LT_DECL([], [runpath_var], [0], [Shared library runtime path variable]) _LT_DECL([], [shlibpath_var], [0],[Shared library path variable]) _LT_DECL([], [shlibpath_overrides_runpath], [0], [Is shlibpath searched before the hard-coded library search path?]) _LT_DECL([], [libname_spec], [1], [Format of library name prefix]) _LT_DECL([], [library_names_spec], [1], [[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]]) _LT_DECL([], [soname_spec], [1], [[The coded name of the library, if different from the real name]]) _LT_DECL([], [install_override_mode], [1], [Permission mode override for installation of shared libraries]) _LT_DECL([], [postinstall_cmds], [2], [Command to use after installation of a shared archive]) _LT_DECL([], [postuninstall_cmds], [2], [Command to use after uninstallation of a shared archive]) _LT_DECL([], [finish_cmds], [2], [Commands used to finish a libtool library installation in a directory]) _LT_DECL([], [finish_eval], [1], [[As "finish_cmds", except a single script fragment to be evaled but not shown]]) _LT_DECL([], [hardcode_into_libs], [0], [Whether we should hardcode library paths into libraries]) _LT_DECL([], [sys_lib_search_path_spec], [2], [Compile-time system search path for libraries]) _LT_DECL([], [sys_lib_dlsearch_path_spec], [2], [Run-time system search path for libraries]) ])# _LT_SYS_DYNAMIC_LINKER # _LT_PATH_TOOL_PREFIX(TOOL) # -------------------------- # find a file program which can recognize shared library AC_DEFUN([_LT_PATH_TOOL_PREFIX], [m4_require([_LT_DECL_EGREP])dnl AC_MSG_CHECKING([for $1]) AC_CACHE_VAL(lt_cv_path_MAGIC_CMD, [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 dnl $ac_dummy forces splitting on constant user-supplied paths. dnl POSIX.2 word splitting is done only on the output of word expansions, dnl not every word. 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Nevertheless, you *** may want to report the problem to your system manager and/or to *** bug-libtool@gnu.org _LT_EOF fi ;; esac fi break fi done IFS="$lt_save_ifs" MAGIC_CMD="$lt_save_MAGIC_CMD" ;; esac]) MAGIC_CMD="$lt_cv_path_MAGIC_CMD" if test -n "$MAGIC_CMD"; then AC_MSG_RESULT($MAGIC_CMD) else AC_MSG_RESULT(no) fi _LT_DECL([], [MAGIC_CMD], [0], [Used to examine libraries when file_magic_cmd begins with "file"])dnl ])# _LT_PATH_TOOL_PREFIX # Old name: AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], []) # _LT_PATH_MAGIC # -------------- # find a file program which can recognize a shared library m4_defun([_LT_PATH_MAGIC], [_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH) if test -z "$lt_cv_path_MAGIC_CMD"; then if test -n "$ac_tool_prefix"; then _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH) else MAGIC_CMD=: fi fi ])# _LT_PATH_MAGIC # LT_PATH_LD # ---------- # find the pathname to the GNU or non-GNU linker AC_DEFUN([LT_PATH_LD], [AC_REQUIRE([AC_PROG_CC])dnl AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_REQUIRE([AC_CANONICAL_BUILD])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_PROG_ECHO_BACKSLASH])dnl AC_ARG_WITH([gnu-ld], [AS_HELP_STRING([--with-gnu-ld], [assume the C compiler uses GNU ld @<:@default=no@:>@])], [test "$withval" = no || with_gnu_ld=yes], [with_gnu_ld=no])dnl ac_prog=ld if test "$GCC" = yes; then # Check if gcc -print-prog-name=ld gives a path. AC_MSG_CHECKING([for ld used by $CC]) 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 $ac_prog in # Accept absolute paths. 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hppa*64*) [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'] lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl ;; *) lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library' lt_cv_file_magic_test_file=/usr/lib/libc.sl ;; esac ;; interix[[3-9]]*) # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$' ;; 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) 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)$' fi ;; 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ncr) lt_cv_deplibs_check_method=pass_all ;; sequent) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' ;; sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; esac ]) file_magic_glob= want_nocaseglob=no if test "$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) 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. 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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) 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 ' ;; 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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; 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, $1)='true' _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols' # Don't use ranlib _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib' _LT_TAGVAR(postlink_cmds, $1)='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 _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 $export_symbols`" = xEXPORTS; 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To avoid this, we pick a random, # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link # time. 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Vaughan, 2004 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 6 ltsugar.m4 # This is to help aclocal find these macros, as it can't see m4_define. AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])]) # lt_join(SEP, ARG1, [ARG2...]) # ----------------------------- # Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their # associated separator. # Needed until we can rely on m4_join from Autoconf 2.62, since all earlier # versions in m4sugar had bugs. m4_define([lt_join], [m4_if([$#], [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 ]) lttng-ust-2.4.0/config/compile0000755000175000017500000000717311703074251013232 00000000000000#! /bin/sh # Wrapper for compilers which do not understand `-c -o'. scriptversion=2005-05-14.22 # Copyright (C) 1999, 2000, 2003, 2004, 2005 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, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. # 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 # . 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 $? ;; esac ofile= cfile= eat= for arg do if test -n "$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 "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.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 mv "$cofile" "$ofile" elif test -f "${cofile}bj"; then mv "${cofile}bj" "$ofile" fi rmdir "$lockdir" exit $ret # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-end: "$" # End: lttng-ust-2.4.0/config/ltoptions.m40000644000175000017500000003007311703074434014147 00000000000000# Helper functions for option handling. -*- Autoconf -*- # # Copyright (C) 2004, 2005, 2007, 2008, 2009 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 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])]) lttng-ust-2.4.0/liblttng-ust-jul/0000755000175000017500000000000012304153162013674 500000000000000lttng-ust-2.4.0/liblttng-ust-jul/org/0000755000175000017500000000000012304153162014463 500000000000000lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/0000755000175000017500000000000012304153162015613 500000000000000lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/0000755000175000017500000000000012304153162016426 500000000000000lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/0000755000175000017500000000000012304153162017220 500000000000000lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/LTTngUst.java0000644000175000017500000000542412304151532021473 00000000000000/** * Copyright (C) 2011-2012 Mathieu Desnoyers * Copyright (C) 2012 Alexandre Montplaisir * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust.jul; /** * This class implements the the Java side of the LTTng-UST Java interface. * * First, make sure you have installed "liblttng-ust-java.so" where the linker * can find it. You can then call LTTngUst.init() from your Java program to * connect the methods exposed here to the native library. * * Because of limitations in the probe declaration, all trace events generated * by this library will have "lttng_ust_java" for domain, and "_event" for * event name in the CTF trace files. The "name" parameter will instead appear * as the first element of the event's payload. * * @author Mathieu Desnoyers * @author Alexandre Montplaisir * @author David Goulet * */ public abstract class LTTngUst { /** * Initialize the UST tracer. This should always be called first, before any * tracepoint* method. */ public static void init() { System.loadLibrary("lttng-ust-jul-jni"); //$NON-NLS-1$ } /** * Insert a tracepoint for JUL event. * * @param msg * Raw message provided by the JUL API. * @param logger_name * Logger name that trigger this event. * @param class_name * Name of the class that (allegedly) issued the logging request. * @param method_name * Name of the method that (allegedly) issued the logging request. * @param millis * Event time in milliseconds since 1970. * @param log_level * Log level of the event from JUL. * @param thread_id * Identifier for the thread where the message originated. */ /* Use for a user session daemon. */ public static native void tracepointU(String msg, String logger_name, String class_name, String method_name, long millis, int log_level, int thread_id); /* Use for a root session daemon. */ public static native void tracepointS(String msg, String logger_name, String class_name, String method_name, long millis, int log_level, int thread_id); } lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/LTTngLogHandler.java0000644000175000017500000001040612304151532022733 00000000000000/* * Copyright (C) 2013 - David Goulet * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust.jul; import java.lang.String; import java.util.logging.Handler; import java.util.logging.LogRecord; import java.util.logging.LogManager; import java.util.logging.Level; import java.util.ArrayList; import java.util.HashMap; import org.lttng.ust.jul.LTTngUst; /* Note: This is taken from the LTTng tools ABI. */ class LTTngLogLevelABI { /* Loglevel type. */ public static final int LOGLEVEL_TYPE_ALL = 0; public static final int LOGLEVEL_TYPE_RANGE = 1; public static final int LOGLEVEL_TYPE_SINGLE = 2; } public class LTTngLogHandler extends Handler { /* * Indicate if the enable all event has been seen and if yes logger that we * enabled should use the loglevel/type below. */ public int logLevelUseAll = 0; public ArrayList logLevelsAll = new ArrayList(); /* Am I a root Log Handler. */ public int is_root = 0; public LogManager logManager; /* Indexed by name and corresponding LTTngEvent. */ private HashMap eventMap = new HashMap(); public LTTngLogHandler(LogManager logManager) { super(); this.logManager = logManager; /* Initialize LTTng UST tracer. */ LTTngUst.init(); } /** * Add event to handler hash map if new. * * @return 0 if it did not exist else 1. */ public int setEvent(LTTngEvent new_event) { LTTngEvent event; event = eventMap.get(new_event.name); if (event == null) { eventMap.put(new_event.name, new_event); /* Did not exists. */ return 0; } else { /* Add new event loglevel to existing event. */ event.logLevels.addAll(new_event.logLevels); /* Already exists. */ return 1; } } @Override public void close() throws SecurityException {} @Override public void flush() {} @Override public void publish(LogRecord record) { int fire_tp = 0, rec_log_level, ev_type, ev_log_level; LTTngEvent event; LTTngLogLevel lttngLogLevel; String logger_name = record.getLoggerName(); /* Get back the event if any and check for loglevel. */ event = eventMap.get(logger_name); if (event != null) { for (LTTngLogLevel ev_log : event.logLevels) { /* Get record and event log level. */ rec_log_level = record.getLevel().intValue(); ev_log_level = ev_log.level; switch (ev_log.type) { case LTTngLogLevelABI.LOGLEVEL_TYPE_RANGE: if (ev_log_level <= rec_log_level) { fire_tp = 1; } break; case LTTngLogLevelABI.LOGLEVEL_TYPE_SINGLE: if (ev_log_level == rec_log_level) { fire_tp = 1; } break; case LTTngLogLevelABI.LOGLEVEL_TYPE_ALL: fire_tp = 1; break; } /* * If we match, stop right now else continue to the next * loglevel contained in the event. */ if (fire_tp == 1) { break; } } } else { /* No loglevel attached thus fire tracepoint. */ fire_tp = 1; } if (fire_tp == 0) { return; } /* * Specific tracepoing designed for JUL events. The source class of the * caller is used for the event name, the raw message is taken, the * loglevel of the record and the thread ID. */ if (this.is_root == 1) { LTTngUst.tracepointS(record.getMessage(), record.getLoggerName(), record.getSourceClassName(), record.getSourceMethodName(), record.getMillis(), record.getLevel().intValue(), record.getThreadID()); } else { LTTngUst.tracepointU(record.getMessage(), record.getLoggerName(), record.getSourceClassName(), record.getSourceMethodName(), record.getMillis(), record.getLevel().intValue(), record.getThreadID()); } } } lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/LTTngTCPSessiondClient.java0000644000175000017500000002677712304151532024233 00000000000000/* * Copyright (C) 2013 - David Goulet * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust.jul; import java.util.concurrent.Semaphore; import java.nio.ByteBuffer; import java.nio.ByteOrder; import java.lang.Integer; import java.io.IOException; import java.io.BufferedOutputStream; import java.io.BufferedReader; import java.io.ByteArrayOutputStream; import java.io.DataOutputStream; import java.io.DataInputStream; import java.io.FileReader; import java.io.FileNotFoundException; import java.net.*; import java.lang.management.ManagementFactory; import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Set; import java.util.Timer; import java.util.TimerTask; import java.util.logging.Logger; import java.util.Collections; class USTRegisterMsg { public static int pid; } public class LTTngTCPSessiondClient { /* Command header from the session deamon. */ private LTTngSessiondCmd2_4.sessiond_hdr headerCmd = new LTTngSessiondCmd2_4.sessiond_hdr(); private final String sessiondHost; private Socket sessiondSock; private boolean quit = false; private DataInputStream inFromSessiond; private DataOutputStream outToSessiond; private LTTngLogHandler handler; private Semaphore registerSem; private Timer eventTimer; private Set enabledEventSet = Collections.synchronizedSet(new HashSet()); /* * Map of Logger objects that have been enabled. They are indexed by name. */ private HashMap enabledLoggers = new HashMap(); /* Timer delay at each 5 seconds. */ private final static long timerDelay = 5 * 1000; private static boolean timerInitialized; private static final String rootPortFile = "/var/run/lttng/jul.port"; private static final String userPortFile = "/.lttng/jul.port"; /* Indicate if we've already release the semaphore. */ private boolean sem_posted = false; public LTTngTCPSessiondClient(String host, Semaphore sem) { this.sessiondHost = host; this.registerSem = sem; this.eventTimer = new Timer(); this.timerInitialized = false; } private void setupEventTimer() { if (this.timerInitialized) { return; } this.eventTimer.scheduleAtFixedRate(new TimerTask() { @Override public void run() { synchronized (enabledEventSet) { LTTngSessiondCmd2_4.sessiond_enable_handler enableCmd = new LTTngSessiondCmd2_4.sessiond_enable_handler(); /* * Modifying events in a Set will raise a * ConcurrentModificationException. Thus, we remove an event * and add its modified version to modifiedEvents when a * modification is necessary. */ Set modifiedEvents = new HashSet(); Iterator it = enabledEventSet.iterator(); while (it.hasNext()) { int ret; Logger logger; LTTngEvent event = it.next(); /* * Check if this Logger name has been enabled already. Note * that in the case of "*", it's never added in that hash * table thus the enable command does a lookup for each * logger name in that hash table for the * case in order * to make sure we don't enable twice the same logger * because JUL apparently accepts that the *same* * LogHandler can be added twice on a Logger object... * don't ask... */ logger = enabledLoggers.get(event.name); if (logger != null) { continue; } /* * Set to one means that the enable all event has been seen * thus event from that point on must use loglevel for all * events. Else the object has its own loglevel. */ if (handler.logLevelUseAll == 1) { it.remove(); event.logLevels.addAll(handler.logLevelsAll); modifiedEvents.add(event); } /* * The all event is a special case since we have to iterate * over every Logger to see which one was not enabled. */ if (event.name.equals("*")) { enableCmd.name = event.name; /* Tell the command NOT to add the loglevel. */ enableCmd.lttngLogLevel = -1; /* * The return value is irrelevant since the * event is * always kept in the set. */ enableCmd.execute(handler, enabledLoggers); continue; } ret = enableCmd.enableLogger(handler, event, enabledLoggers); if (ret == 1) { /* Enabled so remove the event from the set. */ if (!modifiedEvents.remove(event)) { /* * event can only be present in one of * the sets. */ it.remove(); } } } enabledEventSet.addAll(modifiedEvents); } } }, this.timerDelay, this.timerDelay); this.timerInitialized = true; } /* * Try to release the registerSem if it's not already done. */ private void tryReleaseSem() { /* Release semaphore so we unblock the agent. */ if (!this.sem_posted) { this.registerSem.release(); this.sem_posted = true; } } public void init(LTTngLogHandler handler) throws InterruptedException { this.handler = handler; for (;;) { if (this.quit) { break; } try { /* * Connect to the session daemon before anything else. */ connectToSessiond(); /* * Register to the session daemon as the Java component of the * UST application. */ registerToSessiond(); setupEventTimer(); /* * Block on socket receive and wait for command from the * session daemon. This will return if and only if there is a * fatal error or the socket closes. */ handleSessiondCmd(); } catch (UnknownHostException uhe) { tryReleaseSem(); System.out.println(uhe); } catch (IOException ioe) { tryReleaseSem(); Thread.sleep(3000); } catch (Exception e) { tryReleaseSem(); e.printStackTrace(); } } } public void destroy() { this.quit = true; this.eventTimer.cancel(); try { if (this.sessiondSock != null) { this.sessiondSock.close(); } } catch (Exception e) { e.printStackTrace(); } } /* * Receive header data from the session daemon using the LTTng command * static buffer of the right size. */ private void recvHeader() throws Exception { int read_len; byte data[] = new byte[this.headerCmd.SIZE]; read_len = this.inFromSessiond.read(data, 0, data.length); if (read_len != data.length) { throw new IOException(); } this.headerCmd.populate(data); } /* * Receive payload from the session daemon. This MUST be done after a * recvHeader() so the header value of a command are known. * * The caller SHOULD use isPayload() before which returns true if a payload * is expected after the header. */ private byte[] recvPayload() throws Exception { byte payload[] = new byte[(int) this.headerCmd.data_size]; /* Failsafe check so we don't waste our time reading 0 bytes. */ if (payload.length == 0) { return null; } this.inFromSessiond.read(payload, 0, payload.length); return payload; } /* * Handle session command from the session daemon. */ private void handleSessiondCmd() throws Exception { int ret_code; byte data[] = null; while (true) { /* Get header from session daemon. */ recvHeader(); if (headerCmd.data_size > 0) { data = recvPayload(); } switch (headerCmd.cmd) { case CMD_REG_DONE: { /* * Release semaphore so meaning registration is done and we * can proceed to continue tracing. */ tryReleaseSem(); /* * We don't send any reply to the registration done command. * This just marks the end of the initial session setup. */ continue; } case CMD_LIST: { LTTngSessiondCmd2_4.sessiond_list_logger listLoggerCmd = new LTTngSessiondCmd2_4.sessiond_list_logger(); listLoggerCmd.execute(this.handler); data = listLoggerCmd.getBytes(); break; } case CMD_ENABLE: { LTTngEvent event; LTTngSessiondCmd2_4.sessiond_enable_handler enableCmd = new LTTngSessiondCmd2_4.sessiond_enable_handler(); if (data == null) { enableCmd.code = LTTngSessiondCmd2_4.lttng_jul_ret_code.CODE_INVALID_CMD; break; } enableCmd.populate(data); event = enableCmd.execute(this.handler, this.enabledLoggers); if (event != null) { /* * Add the event to the set so it can be enabled if * the logger appears at some point in time. */ enabledEventSet.add(event); } data = enableCmd.getBytes(); break; } case CMD_DISABLE: { LTTngSessiondCmd2_4.sessiond_disable_handler disableCmd = new LTTngSessiondCmd2_4.sessiond_disable_handler(); if (data == null) { disableCmd.code = LTTngSessiondCmd2_4.lttng_jul_ret_code.CODE_INVALID_CMD; break; } disableCmd.populate(data); disableCmd.execute(this.handler); data = disableCmd.getBytes(); break; } default: { data = new byte[4]; ByteBuffer buf = ByteBuffer.wrap(data); buf.order(ByteOrder.BIG_ENDIAN); LTTngSessiondCmd2_4.lttng_jul_ret_code code = LTTngSessiondCmd2_4.lttng_jul_ret_code.CODE_INVALID_CMD; buf.putInt(code.getCode()); break; } } /* Send payload to session daemon. */ this.outToSessiond.write(data, 0, data.length); this.outToSessiond.flush(); } } private String getHomePath() { return System.getProperty("user.home"); } /** * Read port number from file created by the session daemon. * * @return port value if found else 0. */ private int getPortFromFile(String path) throws IOException { int port; BufferedReader br; try { br = new BufferedReader(new FileReader(path)); String line = br.readLine(); port = Integer.parseInt(line, 10); if (port < 0 || port > 65535) { /* Invalid value. Ignore. */ port = 0; } br.close(); } catch (FileNotFoundException e) { /* No port available. */ port = 0; } return port; } private void connectToSessiond() throws Exception { int port; if (this.handler.is_root == 1) { port = getPortFromFile(rootPortFile); if (port == 0) { /* No session daemon available. Stop and retry later. */ throw new IOException(); } } else { port = getPortFromFile(getHomePath() + userPortFile); if (port == 0) { /* No session daemon available. Stop and retry later. */ throw new IOException(); } } this.sessiondSock = new Socket(this.sessiondHost, port); this.inFromSessiond = new DataInputStream( sessiondSock.getInputStream()); this.outToSessiond = new DataOutputStream( sessiondSock.getOutputStream()); } private void registerToSessiond() throws Exception { byte data[] = new byte[4]; ByteBuffer buf = ByteBuffer.wrap(data); String pid = ManagementFactory.getRuntimeMXBean().getName().split("@")[0]; buf.putInt(Integer.parseInt(pid)); this.outToSessiond.write(data, 0, data.length); this.outToSessiond.flush(); } } lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/LTTngAgent.java0000644000175000017500000001204112304151532021747 00000000000000/* * Copyright (C) 2013 - David Goulet * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust.jul; import java.io.IOException; import java.io.InputStream; import java.io.BufferedReader; import java.io.FileReader; import java.util.concurrent.Semaphore; import java.util.concurrent.TimeUnit; import java.util.logging.FileHandler; import java.util.logging.Handler; import java.util.logging.Level; import java.util.logging.Logger; import java.util.logging.LogManager; import java.util.Enumeration; public class LTTngAgent { private static LogManager logManager; /* Possible that we have to threads handling two sessiond. */ private static LTTngLogHandler lttngHandlerRoot; private static LTTngLogHandler lttngHandlerUser; private static LTTngThread lttngThreadRoot; private static LTTngThread lttngThreadUser; private static Thread sessiondThRoot; private static Thread sessiondThUser; /* Singleton agent object. */ private static LTTngAgent curAgent = null; /* Indicate if this object has been initialized. */ private static boolean initialized = false; private static Semaphore registerSem; private final static int semTimeout = 3; /* Seconds */ /* * Default value to connect to session daemon. Port number is dynamically * fetched from the port file that is created by a running session daemon. */ private static final String sessiondAddr = "127.0.0.1"; /* * Constructor is private. This is a singleton and a reference should be * acquired using getLTTngAgent(). */ private LTTngAgent() throws IOException { this.logManager = LogManager.getLogManager(); this.lttngHandlerUser = new LTTngLogHandler(this.logManager); this.lttngHandlerRoot = new LTTngLogHandler(this.logManager); this.lttngHandlerRoot.is_root = 1; this.registerSem = new Semaphore(0, true); } private void removeHandlers() throws SecurityException, IOException { String loggerName; Logger logger; Enumeration list = this.logManager.getLoggerNames(); while (list.hasMoreElements()) { loggerName = list.nextElement().toString(); /* Somehow there is always an empty string at the end. */ if (loggerName == "") { continue; } logger = this.logManager.getLogger(loggerName); logger.removeHandler(this.lttngHandlerUser); logger.removeHandler(this.lttngHandlerRoot); } } private int getUID() throws IOException { int uid; byte b[] = new byte[4]; String userName = System.getProperty("user.name"); String command = "id -u " + userName; Process child = Runtime.getRuntime().exec(command); InputStream in = child.getInputStream(); in.read(b); uid = Integer.parseInt(new String(b).trim(), 10); in.close(); return uid; } /* * Public getter to acquire a reference to this singleton object. */ public static synchronized LTTngAgent getLTTngAgent() throws IOException { if (curAgent == null) { curAgent = new LTTngAgent(); curAgent.init(); } return curAgent; } /* * Initialize LTTngAgent. This will attach the log handler to all Logger * returned by the logManager. */ private synchronized void init() throws SecurityException, IOException { int nr_acquires = 0; if (this.initialized) { return; } /* Handle user session daemon if any. */ this.lttngThreadUser = new LTTngThread(this.sessiondAddr, this.lttngHandlerUser, this.registerSem); this.sessiondThUser = new Thread(lttngThreadUser); this.sessiondThUser.start(); /* Wait for registration done of per-user sessiond */ nr_acquires++; /* Handle root session daemon. */ this.lttngThreadRoot = new LTTngThread(this.sessiondAddr, this.lttngHandlerRoot, this.registerSem); this.sessiondThRoot = new Thread(lttngThreadRoot); this.sessiondThRoot.start(); /* Wait for registration done of system-wide sessiond */ nr_acquires++; /* Wait for each registration to end. */ try { this.registerSem.tryAcquire(nr_acquires, semTimeout, TimeUnit.SECONDS); } catch (InterruptedException e) { e.printStackTrace(); } this.initialized = true; } public void dispose() throws IOException { this.lttngThreadUser.dispose(); if (this.lttngThreadRoot != null) { this.lttngThreadRoot.dispose(); } /* Make sure there is no more LTTng handler attach to logger(s). */ this.removeHandlers(); try { this.sessiondThUser.join(); if (this.sessiondThRoot != null) { this.sessiondThRoot.join(); } } catch (InterruptedException e) { e.printStackTrace(); } } } lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/LTTngEvent.java0000644000175000017500000000271412304151532022000 00000000000000/* * Copyright (C) 2014 - David Goulet * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust.jul; import java.util.ArrayList; import java.lang.String; import org.lttng.ust.jul.LTTngUst; class LTTngLogLevel { /* This level is a JUL int level value. */ public int level; public int type; public LTTngLogLevel(int level, int type) { this.type = type; this.level = level; } } public class LTTngEvent { /* Name of the event. */ public String name; public ArrayList logLevels = new ArrayList(); public void addLogLevel(int loglevel, int loglevel_type) { this.logLevels.add(new LTTngLogLevel(loglevel, loglevel_type)); } public LTTngEvent(String name, int loglevel, int loglevel_type) { this.name = name; this.addLogLevel(loglevel, loglevel_type); } } lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/LTTngThread.java0000644000175000017500000000247412304151532022131 00000000000000/* * Copyright (C) 2013 - David Goulet * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust.jul; import java.util.concurrent.Semaphore; public class LTTngThread implements Runnable { private LTTngLogHandler handler; private LTTngTCPSessiondClient sessiondClient; public LTTngThread(String host, LTTngLogHandler handler, Semaphore registerSem) { this.handler = handler; this.sessiondClient = new LTTngTCPSessiondClient(host, registerSem); } @Override public void run() { try { this.sessiondClient.init(this.handler); } catch (Exception e) { e.printStackTrace(); } } public void dispose() { this.sessiondClient.destroy(); } } lttng-ust-2.4.0/liblttng-ust-jul/org/lttng/ust/jul/LTTngSessiondCmd2_4.java0000644000175000017500000002257012304151532023441 00000000000000/* * Copyright (C) 2013 - David Goulet * * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust.jul; import java.nio.ByteBuffer; import java.nio.ByteOrder; import java.lang.Object; import java.util.logging.Logger; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Enumeration; public interface LTTngSessiondCmd2_4 { /** * Maximum name length for a logger name to be send to sessiond. */ final static int NAME_MAX = 255; /* * Size of a primitive type int in byte. Because you know, Java can't * provide that since it does not makes sense... */ final static int INT_SIZE = 4; public interface SessiondResponse { /** * Gets a byte array of the command so that it may be streamed * * @return the byte array of the command */ public byte[] getBytes(); } public interface SessiondCommand { /** * Populate the class from a byte array * * @param data * the byte array containing the streamed command */ public void populate(byte[] data); } public enum lttng_jul_command { /** List logger(s). */ CMD_LIST(1), /** Enable logger by name. */ CMD_ENABLE(2), /** Disable logger by name. */ CMD_DISABLE(3), /** Registration done */ CMD_REG_DONE(4); private int code; private lttng_jul_command(int c) { code = c; } public int getCommand() { return code; } } enum lttng_jul_ret_code { CODE_SUCCESS_CMD(1), CODE_INVALID_CMD(2), CODE_UNK_LOGGER_NAME(3); private int code; private lttng_jul_ret_code(int c) { code = c; } public int getCode() { return code; } } public class sessiond_hdr implements SessiondCommand { /** ABI size of command header. */ public final static int SIZE = 16; /** Payload size in bytes following this header. */ public long data_size; /** Command type. */ public lttng_jul_command cmd; /** Command version. */ public int cmd_version; public void populate(byte[] data) { ByteBuffer buf = ByteBuffer.wrap(data); buf.order(ByteOrder.BIG_ENDIAN); data_size = buf.getLong(); cmd = lttng_jul_command.values()[buf.getInt() - 1]; cmd_version = buf.getInt(); } } public class sessiond_enable_handler implements SessiondResponse, SessiondCommand { private final static int SIZE = 4; public String name; public int lttngLogLevel; public int lttngLogLevelType; /** Return status code to the session daemon. */ public lttng_jul_ret_code code; @Override public void populate(byte[] data) { int data_offset = INT_SIZE * 2; ByteBuffer buf = ByteBuffer.wrap(data); buf.order(ByteOrder.LITTLE_ENDIAN); lttngLogLevel = buf.getInt(); lttngLogLevelType = buf.getInt(); name = new String(data, data_offset, data.length - data_offset); } @Override public byte[] getBytes() { byte data[] = new byte[SIZE]; ByteBuffer buf = ByteBuffer.wrap(data); buf.order(ByteOrder.BIG_ENDIAN); buf.putInt(code.getCode()); return data; } /* * Enable a logger meaning add our handler to it using an exiting * event. If successful, the logger is added to the given enabled * Loggers hashmap. * * @return 0 if NO logger is found else 1 if added. */ public int enableLogger(LTTngLogHandler handler, LTTngEvent event, HashMap enabledLoggers) { int ret; Logger logger; logger = handler.logManager.getLogger(event.name); if (logger == null) { return 0; } ret = handler.setEvent(event); if (ret == 0) { /* Newly created event, add the handler. */ logger.addHandler(handler); enabledLoggers.put(event.name, logger); } return 1; } /** * Execute enable handler action which is to enable the given handler * to the received name. * * @return Event name as a string if the event is NOT found thus was * not enabled. */ public LTTngEvent execute(LTTngLogHandler handler, HashMap enabledLoggers) { int ret; Logger logger; LTTngEvent event = null; if (name == null) { this.code = lttng_jul_ret_code.CODE_INVALID_CMD; return null; } /* Wild card to enable ALL logger. */ if (name.trim().equals("*")) { String loggerName; Enumeration loggers = handler.logManager.getLoggerNames(); /* * Keep the loglevel value for all events in case an event * appears later on. */ if (lttngLogLevel != -1) { handler.logLevelUseAll = 1; handler.logLevelsAll.add(new LTTngLogLevel(lttngLogLevel, lttngLogLevelType)); } while (loggers.hasMoreElements()) { loggerName = loggers.nextElement().toString(); /* Somehow there is always an empty string at the end. */ if (loggerName == "") { continue; } /* * Create new event object and set it in the log handler so * we can process the record entry with the right * attributes like the loglevels. */ event = new LTTngEvent(loggerName, 0, 0); /* Clean up loglevel and merge the the ones from all events. */ event.logLevels.clear(); event.logLevels.addAll(handler.logLevelsAll); enableLogger(handler, event, enabledLoggers); } this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; /* * Only return an event if this is a newly created event * meaning the loglevel is valid. */ if (lttngLogLevel != -1) { event = new LTTngEvent("*", lttngLogLevel, lttngLogLevelType); } return event; } this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; /* * Create new event object and set it in the log handler so we can * process the record entry with the right attributes like the * loglevels. */ event = new LTTngEvent(name.trim(), lttngLogLevel, lttngLogLevelType); ret = enableLogger(handler, event, enabledLoggers); if (ret == 1) { return null; } return event; } } public class sessiond_disable_handler implements SessiondResponse, SessiondCommand { private final static int SIZE = 4; public String name; /** Return status code to the session daemon. */ public lttng_jul_ret_code code; @Override public void populate(byte[] data) { ByteBuffer buf = ByteBuffer.wrap(data); buf.order(ByteOrder.BIG_ENDIAN); name = new String(data, 0, data.length); } @Override public byte[] getBytes() { byte data[] = new byte[SIZE]; ByteBuffer buf = ByteBuffer.wrap(data); buf.order(ByteOrder.BIG_ENDIAN); buf.putInt(code.getCode()); return data; } /** * Execute disable handler action which is to disable the given handler * to the received name. */ public void execute(LTTngLogHandler handler) { Logger logger; if (name == null) { this.code = lttng_jul_ret_code.CODE_INVALID_CMD; return; } /* Wild card to disable ALL logger. */ if (name.trim().equals("*")) { String loggerName; Enumeration loggers = handler.logManager.getLoggerNames(); while (loggers.hasMoreElements()) { loggerName = loggers.nextElement().toString(); /* Somehow there is always an empty string at the end. */ if (loggerName == "") { continue; } logger = handler.logManager.getLogger(loggerName); logger.removeHandler(handler); } this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; return; } logger = handler.logManager.getLogger(name.trim()); if (logger == null) { this.code = lttng_jul_ret_code.CODE_UNK_LOGGER_NAME; } else { logger.removeHandler(handler); this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; } } } public class sessiond_list_logger implements SessiondResponse { private final static int SIZE = 12; private int data_size = 0; private int nb_logger = 0; List logger_list = new ArrayList(); /** Return status code to the session daemon. */ public lttng_jul_ret_code code; @Override public byte[] getBytes() { byte data[] = new byte[SIZE + data_size]; ByteBuffer buf = ByteBuffer.wrap(data); buf.order(ByteOrder.BIG_ENDIAN); /* Returned code */ buf.putInt(code.getCode()); buf.putInt(data_size); buf.putInt(nb_logger); for (String logger: logger_list) { buf.put(logger.getBytes()); /* NULL terminated byte after the logger name. */ buf.put((byte) 0x0); } return data; } /** * Execute enable handler action which is to enable the given handler * to the received name. */ public void execute(LTTngLogHandler handler) { String loggerName; Enumeration loggers = handler.logManager.getLoggerNames(); while (loggers.hasMoreElements()) { loggerName = loggers.nextElement().toString(); /* Somehow there is always an empty string at the end. */ if (loggerName == "") { continue; } this.logger_list.add(loggerName); this.nb_logger++; this.data_size += loggerName.length() + 1; } this.code = lttng_jul_ret_code.CODE_SUCCESS_CMD; } } } lttng-ust-2.4.0/liblttng-ust-jul/lttng_ust_jul.h0000644000175000017500000000452412304151532016666 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER lttng_jul #if !defined(_TRACEPOINT_LTTNG_UST_JUL_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_LTTNG_UST_JUL_H /* * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include /* * Privileged tracepoint meaning that this is only enable and fired by the root * session daemon. */ TRACEPOINT_EVENT(lttng_jul, sys_event, TP_ARGS( const char *, msg, const char *, logger_name, const char *, class_name, const char *, method_name, long, millis, int, log_level, int, thread_id), TP_FIELDS( ctf_string(msg, msg) ctf_string(logger_name, logger_name) ctf_string(class_name, class_name) ctf_string(method_name, method_name) ctf_integer(long, long_millis, millis) ctf_integer(int, int_loglevel, log_level) ctf_integer(int, int_threadid, thread_id) ) ) /* * User tracepoint meaning that this is only enable and fired by a non root * session daemon. */ TRACEPOINT_EVENT(lttng_jul, user_event, TP_ARGS( const char *, msg, const char *, logger_name, const char *, class_name, const char *, method_name, long, millis, int, log_level, int, thread_id), TP_FIELDS( ctf_string(msg, msg) ctf_string(logger_name, logger_name) ctf_string(class_name, class_name) ctf_string(method_name, method_name) ctf_integer(long, long_millis, millis) ctf_integer(int, int_loglevel, log_level) ctf_integer(int, int_threadid, thread_id) ) ) #endif /* _TRACEPOINT_LTTNG_UST_JUL_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./lttng_ust_jul.h" /* This part must be outside protection */ #include lttng-ust-2.4.0/liblttng-ust-jul/Makefile.am0000644000175000017500000000351512304151532015653 00000000000000LTTNG_JUL_SRCDIR = $(srcdir)/org/lttng/ust/jul LTTNG_JUL_DESTDIR = $(builddir)/org/lttng/ust/jul if BUILD_JNI_INTERFACE AM_CPPFLAGS = -I$(top_srcdir)/include lib_LTLIBRARIES = liblttng-ust-jul-jni.la liblttng_ust_jul_jni_la_SOURCES = LTTngUst.c lttng_ust_jul.h nodist_liblttng_ust_jul_jni_la_SOURCES = 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2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "org_lttng_ust_jul_LTTngUst.h" #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #include "lttng_ust_jul.h" /* * System tracepoint meaning only root agent will fire this. */ JNIEXPORT void JNICALL Java_org_lttng_ust_jul_LTTngUst_tracepointS(JNIEnv *env, jobject jobj, jstring msg, jstring logger_name, jstring class_name, jstring method_name, jlong millis, jint log_level, jint thread_id) { jboolean iscopy; const char *msg_cstr = (*env)->GetStringUTFChars(env, msg, &iscopy); const char *logger_name_cstr = (*env)->GetStringUTFChars(env, logger_name, &iscopy); const char *class_name_cstr = (*env)->GetStringUTFChars(env, class_name, &iscopy); const char *method_name_cstr = (*env)->GetStringUTFChars(env, method_name, &iscopy); tracepoint(lttng_jul, sys_event, msg_cstr, logger_name_cstr, class_name_cstr, method_name_cstr, millis, log_level, thread_id); (*env)->ReleaseStringUTFChars(env, msg, msg_cstr); (*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr); (*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr); (*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr); } /* * User tracepoint meaning only a non root agent will fire this. */ JNIEXPORT void JNICALL Java_org_lttng_ust_jul_LTTngUst_tracepointU(JNIEnv *env, jobject jobj, jstring msg, jstring logger_name, jstring class_name, jstring method_name, jlong millis, jint log_level, jint thread_id) { jboolean iscopy; const char *msg_cstr = (*env)->GetStringUTFChars(env, msg, &iscopy); const char *logger_name_cstr = (*env)->GetStringUTFChars(env, logger_name, &iscopy); const char *class_name_cstr = (*env)->GetStringUTFChars(env, class_name, &iscopy); const char *method_name_cstr = (*env)->GetStringUTFChars(env, method_name, &iscopy); tracepoint(lttng_jul, user_event, msg_cstr, logger_name_cstr, class_name_cstr, method_name_cstr, millis, log_level, thread_id); (*env)->ReleaseStringUTFChars(env, msg, msg_cstr); (*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr); (*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr); (*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr); } lttng-ust-2.4.0/liblttng-ust-java/0000755000175000017500000000000012304153162014023 500000000000000lttng-ust-2.4.0/liblttng-ust-java/org/0000755000175000017500000000000012304153162014612 500000000000000lttng-ust-2.4.0/liblttng-ust-java/org/lttng/0000755000175000017500000000000012304153162015742 500000000000000lttng-ust-2.4.0/liblttng-ust-java/org/lttng/ust/0000755000175000017500000000000012304153162016555 500000000000000lttng-ust-2.4.0/liblttng-ust-java/org/lttng/ust/LTTngUst.java0000644000175000017500000000750512304151532021032 00000000000000/** * Copyright (C) 2011-2012 Mathieu Desnoyers * Copyright (C) 2012 Alexandre Montplaisir * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.lttng.ust; /** * This class implements the the Java side of the LTTng-UST Java interface. * * First, make sure you have installed "liblttng-ust-java.so" where the linker * can find it. You can then call LTTngUst.init() from your Java program to * connect the methods exposed here to the native library. * * Because of limitations in the probe declaration, all trace events generated * by this library will have "lttng_ust_java" for domain, and "_event" for * event name in the CTF trace files. The "name" parameter will instead appear * as the first element of the event's payload. * * @author Mathieu Desnoyers * @author Alexandre Montplaisir * */ public abstract class LTTngUst { /** * Initialize the UST tracer. This should always be called first, before any * tracepoint* method. */ public static void init() { System.loadLibrary("lttng-ust-java"); //$NON-NLS-1$ } /** * Insert a tracepoint with a payload of type Integer. * * @param name * The name assigned to this event. For best performance, this * should be a statically-defined String, or a literal. * @param payload * The int payload */ public static native void tracepointInt(String name, int payload); /** * Insert a tracepoint with a payload consisting of two integers. * * @param name * The name assigned to this event. For best performance, this * should be a statically-defined String, or a literal. * @param payload1 * The first int payload * @param payload2 * The second int payload */ public static native void tracepointIntInt(String name, int payload1, int payload2); /** * Insert a tracepoint with a payload of type Long * * @param name * The name assigned to this event. For best performance, this * should be a statically-defined String, or a literal. * @param payload * The long payload */ public static native void tracepointLong(String name, long payload); /** * Insert a tracepoint with a payload consisting of two longs. * * @param name * The name assigned to this event. For best performance, this * should be a statically-defined String, or a literal. * @param payload1 * The first long payload * @param payload2 * The second long payload */ public static native void tracepointLongLong(String name, long payload1, long payload2); /** * Insert a tracepoint with a String payload. * * @param name * The name assigned to this event. For best performance, this * should be a statically-defined String, or a literal. * @param payload * The String payload */ public static native void tracepointString(String name, String payload); } lttng-ust-2.4.0/liblttng-ust-java/README0000644000175000017500000000131312304151532014620 00000000000000This directory contains a simple API for instrumenting java applications. Configuration examples to build this library: dependency: openjdk-7-jdk ./configure --with-java-jdk=/usr/lib/jvm/java-7-openjdk --with-jni-interface Note that the OpenJDK 7 is used for development and continuous integration thus we directly support that version for this library. However, it has been tested with OpenJDK 6 also. Please let us know if other Java version (commercial or not) work with this library. After building, you can use the liblttng-ust-java.jar file in a Java project. 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pdf-am ps ps-am \ tags uninstall uninstall-am uninstall-libLTLIBRARIES @BUILD_JNI_INTERFACE_TRUE@all: $(LTTNG_JUST_DESTDIR)/LTTngUst.class org_lttng_ust_LTTngUst.h liblttng-ust-java.jar @BUILD_JNI_INTERFACE_TRUE@clean-local: @BUILD_JNI_INTERFACE_TRUE@ rm -f org_lttng_ust_LTTngUst.h @BUILD_JNI_INTERFACE_TRUE@ rm -f liblttng-ust-java.jar @BUILD_JNI_INTERFACE_TRUE@ rm -rf org/lttng/ust/*.class @BUILD_JNI_INTERFACE_TRUE@LTTngUst.c: org_lttng_ust_LTTngUst.h @BUILD_JNI_INTERFACE_TRUE@$(LTTNG_JUST_DESTDIR)/LTTngUst.class: $(LTTNG_JUST_SRCDIR)/LTTngUst.java @BUILD_JNI_INTERFACE_TRUE@ $(JCC)/javac -d "$(builddir)" "$(LTTNG_JUST_SRCDIR)/LTTngUst.java" @BUILD_JNI_INTERFACE_TRUE@org_lttng_ust_LTTngUst.h: $(LTTNG_JUST_DESTDIR)/LTTngUst.class @BUILD_JNI_INTERFACE_TRUE@ $(JCC)/javah org.lttng.ust.LTTngUst @BUILD_JNI_INTERFACE_TRUE@liblttng-ust-java.jar: $(LTTNG_JUST_DESTDIR)/LTTngUst.class @BUILD_JNI_INTERFACE_TRUE@ $(JCC)/jar cf liblttng-ust-java.jar $(LTTNG_JUST_DESTDIR)/*.class # 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: lttng-ust-2.4.0/liblttng-ust-java/lttng_ust_java.h0000644000175000017500000000424312200722032017134 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER lttng_ust_java #if !defined(_TRACEPOINT_LTTNG_UST_JAVA_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_LTTNG_UST_JAVA_H /* * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include TRACEPOINT_EVENT(lttng_ust_java, int_event, TP_ARGS(const char *, name, int, payload), TP_FIELDS( ctf_string(name, name) ctf_integer(int, int_payload, payload) ) ) TRACEPOINT_EVENT(lttng_ust_java, int_int_event, TP_ARGS(const char *, name, int, payload1, int, payload2), TP_FIELDS( ctf_string(name, name) ctf_integer(int, int_payload1, payload1) ctf_integer(int, int_payload2, payload2) ) ) TRACEPOINT_EVENT(lttng_ust_java, long_event, TP_ARGS(const char *, name, long, payload), TP_FIELDS( ctf_string(name, name) ctf_integer(long, long_payload, payload) ) ) TRACEPOINT_EVENT(lttng_ust_java, long_long_event, TP_ARGS(const char *, name, long, payload1, long, payload2), TP_FIELDS( ctf_string(name, name) ctf_integer(long, long_payload1, payload1) ctf_integer(long, long_payload2, payload2) ) ) TRACEPOINT_EVENT(lttng_ust_java, string_event, TP_ARGS(const char *, name, const char *, payload), TP_FIELDS( ctf_string(name, name) ctf_string(string_payload, payload) ) ) #endif /* _TRACEPOINT_LTTNG_UST_JAVA_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./lttng_ust_java.h" /* This part must be outside protection */ #include lttng-ust-2.4.0/liblttng-ust-java/LTTngUst.c0000644000175000017500000000565312167611342015612 00000000000000/* * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "org_lttng_ust_LTTngUst.h" #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #include "lttng_ust_java.h" JNIEXPORT void JNICALL Java_org_lttng_ust_LTTngUst_tracepointInt(JNIEnv *env, jobject jobj, jstring ev_name, jint payload) { jboolean iscopy; const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name, &iscopy); tracepoint(lttng_ust_java, int_event, ev_name_cstr, payload); (*env)->ReleaseStringUTFChars(env, ev_name, ev_name_cstr); } JNIEXPORT void JNICALL Java_org_lttng_ust_LTTngUst_tracepointIntInt(JNIEnv *env, jobject jobj, jstring ev_name, jint payload1, jint payload2) { jboolean iscopy; const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name, &iscopy); tracepoint(lttng_ust_java, int_int_event, ev_name_cstr, payload1, payload2); (*env)->ReleaseStringUTFChars(env, ev_name, ev_name_cstr); } JNIEXPORT void JNICALL Java_org_lttng_ust_LTTngUst_tracepointLong(JNIEnv *env, jobject jobj, jstring ev_name, jlong payload) { jboolean iscopy; const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name, &iscopy); tracepoint(lttng_ust_java, long_event, ev_name_cstr, payload); (*env)->ReleaseStringUTFChars(env, ev_name, ev_name_cstr); } JNIEXPORT void JNICALL Java_org_lttng_ust_LTTngUst_tracepointLongLong(JNIEnv *env, jobject jobj, jstring ev_name, jlong payload1, jlong payload2) { jboolean iscopy; const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name, &iscopy); tracepoint(lttng_ust_java, long_long_event, ev_name_cstr, payload1, payload2); (*env)->ReleaseStringUTFChars(env, ev_name, ev_name_cstr); } JNIEXPORT void JNICALL Java_org_lttng_ust_LTTngUst_tracepointString(JNIEnv *env, jobject jobj, jstring ev_name, jstring payload) { jboolean iscopy; const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name, &iscopy); const char *payload_cstr = (*env)->GetStringUTFChars(env, payload, &iscopy); tracepoint(lttng_ust_java, string_event, ev_name_cstr, payload_cstr); (*env)->ReleaseStringUTFChars(env, ev_name, ev_name_cstr); (*env)->ReleaseStringUTFChars(env, payload, payload_cstr); } lttng-ust-2.4.0/doc/0000755000175000017500000000000012304153163011222 500000000000000lttng-ust-2.4.0/doc/java-util-logging.txt0000644000175000017500000000321712304151532015224 00000000000000The support for JUL needs to be explicitly enabled when lttng-ust is configured, e.g.: dependency: openjdk-7-jdk ./configure --with-java-jdk=/usr/lib/jvm/java-7-openjdk --with-jni-interface On Debian system for instance you can simply use the "default-java" path: ./configure --with-java-jdk=/usr/lib/jvm/default-java --with-jni-interface Note that the OpenJDK 7 is used for development and continuous integration thus we directly support that version for this library. However, it has been tested with OpenJDK 6 also. Please let us know if other Java version (commercial or not) work with this library. The LTTng Java Agent for JUL support is typically installed here: /usr/local/lib/lttng/java/liblttng-ust-jul.jar After building, you can use the "liblttng-ust-jul.jar" file in a Java project. It requires "liblttng-ust-jul.so" which is installed by the build system when doing "make install". Make sure that your Java application can find this shared object with the "java.library.path". In order to enable the agent in your Java application, you simply have to add this as early as you can in the runtime process. import org.lttng.ust.jul.LTTngAgent; [...] private static LTTngAgent lttngAgent; [...] lttngAgent = LTTngAgent.getLTTngAgent(); This will initialize automatically the singleton LTTngAgent, and will return when session daemon registration is done. If no session daemon is available, the execution will continue and the agent will retry every 3 seconds. 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The library "liblttng-ust" enables tracing of applications and libraries. .SH "USAGE" .PP The simple way to generate the lttng-ust tracepoint probes is to use the lttng-gen-tp(1) tool. See the lttng-gen-tp(1) manpage for explanation. .PP .PP Here is the way to do it manually, without the lttng-gen-tp(1) helper script, through an example: .PP .SH "CREATION OF TRACEPOINT PROVIDER" .nf To create a tracepoint provider, within a build tree similar to examples/easy-ust installed with lttng-ust documentation, see sample_component_provider.h for the general layout. You will need to define TRACEPOINT_CREATE_PROBES before including your tracepoint provider probe in one source file of your application. See tp.c from easy-ust for an example of a tracepoint probe source file. This manpage will focus on the various types that can be recorded into a trace event: TRACEPOINT_EVENT( /* * provider name, not a variable but a string starting with a * letter and containing either letters, numbers or underscores. * Needs to be the same as TRACEPOINT_PROVIDER. Needs to * follow the namespacing guide-lines in lttng/tracepoint.h: * * Must be included before include tracepoint provider * ex.: project_event * ex.: project_component_event * * Optional company name goes here * ex.: com_efficios_project_component_event * * In this example, "sample" is the project, and "component" is the * component. */ sample_component, /* * tracepoint name, same format as sample provider. Does not * need to be declared before. in this case the name is * "message" */ message, /* * TP_ARGS macro contains the arguments passed for the tracepoint * it is in the following format * TP_ARGS(type1, name1, type2, name2, ... type10, name10) * where there can be from zero to ten elements. * typeN is the datatype, such as int, struct or double **. * name is the variable name (in "int myInt" the name would be * myint) * TP_ARGS() is valid to mean no arguments * TP_ARGS(void) is valid too */ TP_ARGS(int, anint, int, netint, long *, values, char *, text, size_t, textlen, double, doublearg, float, floatarg), /* * TP_FIELDS describes how to write the fields of the trace event. * You can put expressions in the "argument expression" area, * typically using the input arguments from TP_ARGS. */ TP_FIELDS( /* * ctf_integer: standard integer field. * args: (type, field name, argument expression) */ ctf_integer(int, intfield, anint) ctf_integer(long, longfield, anint) /* * ctf_integer_hex: integer field printed as hexadecimal. * args: (type, field name, argument expression) */ ctf_integer_hex(int, intfield2, anint) /* * ctf_integer_network: integer field in network byte * order. (_hex: printed as hexadecimal too) * args: (type, field name, argument expression) */ ctf_integer_network(int, netintfield, netint) ctf_integer_network_hex(int, netintfieldhex, netint) /* * ctf_array: a statically-sized array. * args: (type, field name, argument expression, value) */ ctf_array(long, arrfield1, values, 3) /* * ctf_array_text: a statically-sized array, printed as * a string. No need to be terminated by a null * character. * Behavior is undefined if "text" argument is NULL. */ ctf_array_text(char, arrfield2, text, 10) /* * ctf_sequence: a dynamically-sized array. * args: (type, field name, argument expression, * type of length expression, length expression) * The "type of length expression" needs to be an * unsigned type. As a reminder, "unsigned char" should * be preferred to "char", since the signedness of * "char" is implementation-defined. * Behavior is undefined if "text" argument is NULL. */ ctf_sequence(char, seqfield1, text, size_t, textlen) /* * ctf_sequence_text: a dynamically-sized array, printed * as string. No need to be null-terminated. * Behavior is undefined if "text" argument is NULL. */ ctf_sequence_text(char, seqfield2, text, size_t, textlen) /* * ctf_string: null-terminated string. * args: (field name, argument expression) * Behavior is undefined if "text" argument is NULL. */ ctf_string(stringfield, text) /* * ctf_float: floating-point number. * args: (type, field name, argument expression) */ ctf_float(float, floatfield, floatarg) ctf_float(double, doublefield, doublearg) ) ) There can be an arbitrary number of tracepoint providers within an application, but they must each have their own provider name. Duplicate provider names are not allowed. .fi .SH "ASSIGNING LOGLEVEL TO EVENTS" .nf Optionally, a loglevel can be assigned to a TRACEPOINT_EVENT using the following construct: TRACEPOINT_LOGLEVEL(< [com_company_]project[_component] >, < event >, < loglevel_name >) The first field is the provider name, the second field is the name of the tracepoint, and the third field is the loglevel name. A TRACEPOINT_EVENT should be declared prior to the the TRACEPOINT_LOGLEVEL for a given tracepoint name. The TRACEPOINT_PROVIDER must be already declared before declaring a TRACEPOINT_LOGLEVEL. The loglevels go from 0 to 14. Higher numbers imply the most verbosity (higher event throughput expected. Loglevels 0 through 6, and loglevel 14, match syslog(3) loglevels semantic. Loglevels 7 through 13 offer more fine-grained selection of debug information. TRACE_EMERG 0 system is unusable TRACE_ALERT 1 action must be taken immediately TRACE_CRIT 2 critical conditions TRACE_ERR 3 error conditions TRACE_WARNING 4 warning conditions TRACE_NOTICE 5 normal, but significant, condition TRACE_INFO 6 informational message TRACE_DEBUG_SYSTEM 7 debug information with system-level scope (set of programs) TRACE_DEBUG_PROGRAM 8 debug information with program-level scope (set of processes) TRACE_DEBUG_PROCESS 9 debug information with process-level scope (set of modules) TRACE_DEBUG_MODULE 10 debug information with module (executable/library) scope (set of units) TRACE_DEBUG_UNIT 11 debug information with compilation unit scope (set of functions) TRACE_DEBUG_FUNCTION 12 debug information with function-level scope TRACE_DEBUG_LINE 13 debug information with line-level scope (TRACEPOINT_EVENT default) TRACE_DEBUG 14 debug-level message (trace_printf default) See lttng(1) for information on how to use LTTng-UST loglevels. .fi .SH "ADDING TRACEPOINTS TO YOUR CODE" .nf Include the provider header in each C files you plan to instrument, following the building/linking directives in the next section. For instance, add within a function: tracepoint(ust_tests_hello, tptest, i, netint, values, text, strlen(text), dbl, flt); As a call to the tracepoint. It will only be activated when requested by lttng(1) through lttng-sessiond(8). Even though LTTng-UST supports tracepoint() call site duplicates having the same provider and event name, it is recommended to use a provider event name pair only once within the source code to help map events back to their call sites when analyzing the trace. .fi .SH "BUILDING/LINKING THE TRACEPOINT PROVIDER" .nf There are 2 ways to compile the Tracepoint Provider with the application: either statically or dynamically. Please follow carefully: 1.1) Compile the Tracepoint provider with the application, either directly or through a static library (.a): - Into exactly one object of your application: define "TRACEPOINT_DEFINE" and include the tracepoint provider. - Use "\-I." for the compilation unit containing the tracepoint provider include (e.g. tp.c). - Link application with "\-ldl". - If building the provider directly into the application, link the application with "\-llttng-ust". - If building a static library for the provider, link the static library with "\-llttng-ust". - Include the tracepoint provider header into all C files using the provider. - Examples: - doc/examples/easy-ust/ sample.c sample_component_provider.h tp.c Makefile - doc/examples/hello-static-lib/ hello.c tp.c ust_test_hello.h Makefile 2) Compile the Tracepoint Provider separately from the application, using dynamic linking: - Into exactly one object of your application: define "TRACEPOINT_DEFINE" _and_ also define "TRACEPOINT_PROBE_DYNAMIC_LINKAGE", then include the tracepoint provider header. - Include the tracepoint provider header into all instrumented C files that use the provider. - Compile the tracepoint provider with "\-I.". - Link the tracepoint provider with "\-llttng-ust". - Link application with "\-ldl". - Set a LD_PRELOAD environment to preload the tracepoint provider shared object before starting the application when tracing is needed. Another way is to dlopen the tracepoint probe when needed by the application. - Example: - doc/examples/demo demo.c tp*.c ust_tests_demo*.h demo-trace Makefile - Note about dlclose() usage: it is not safe to use dlclose on a provider shared object that is being actively used for tracing due to a lack of reference counting from lttng-ust to the used shared object. - Enable instrumentation and control tracing with the "lttng" command from lttng-tools. See lttng-tools doc/quickstart.txt. - Note for C++ support: although an application instrumented with tracepoints can be compiled with g++, tracepoint probes should be compiled with gcc (only tested with gcc so far). .fi .SH "USING LTTNG UST WITH DAEMONS" .nf Some extra care is needed when using liblttng-ust with daemon applications that call fork(), clone(), or BSD rfork() without a following exec() family system call. The library "liblttng-ust-fork.so" needs to be preloaded for the application (launch with e.g. LD_PRELOAD=liblttng-ust-fork.so appname). .fi .SH "CONTEXT" .PP Context information can be prepended by the tracer before each, or some, events. The following context information is supported by LTTng-UST: .PP .PP .IP "vtid" Virtual thread ID: thread ID as seen from the point of view of the process namespace. .PP .PP .IP "vpid" Virtual process ID: process ID as seen from the point of view of the process namespace. .PP .PP .IP "ip" Instruction pointer: Enables recording of the exact location where a tracepoint was emitted. Can be used to reverse-lookup the source location that caused the event to be emitted. .PP .PP .IP "procname" Thread name, as set by exec() or prctl(). It is recommended that programs set their thread name with prctl() before hitting the first tracepoint for that thread. .PP .PP .IP "pthread_id" Pthread identifier. Can be used on architectures where pthread_t maps nicely to an unsigned long type. .PP .SH "BASE ADDRESS STATEDUMP (Experimental feature)" .PP Warning: This is an experimental feature known to cause deadlocks when the traced application uses fork, clone or daemon. Only use it for debugging and testing. Do NOT use it in production. If an application that uses liblttng-ust.so becomes part of a session, information about its currently loaded shared objects will be traced to the session at session-enable time. To record this information, the following event needs to be enabled: .PP .IP "ust_baddr_statedump:soinfo" This event is used to trace a currently loaded shared object. The base address (where the dynamic linker has placed the shared object) is recorded in the "baddr" field. The path to the shared object gets recorded in the "sopath" field (as string). The file size of the loaded object (in bytes) is recorded to the "size" field and its time of last modification (in seconds since Epoch) is recorded in the "mtime" field. .PP If the event above is enabled, a series of "ust_baddr_statedump:soinfo" events is recorded at session-enable time. It represents the state of currently loaded shared objects for the traced process. If this information gets combined with the lttng-ust-dl(3) instrumentation, all aspects of dynamic loading that are relevant for symbol and line number lookup are traced by LTTng. .PP .SH "ENVIRONMENT VARIABLES" .PP .IP "LTTNG_UST_DEBUG" Activate liblttng-ust debug output. .PP .IP "LTTNG_UST_REGISTER_TIMEOUT" The environment variable "LTTNG_UST_REGISTER_TIMEOUT" can be used to specify how long the applications should wait for sessiond "registration done" command before proceeding to execute the main program. The default is 3000ms (3 seconds). The timeout value is specified in milliseconds. The value 0 means "don't wait". The value \-1 means "wait forever". Setting this environment variable to 0 is recommended for applications with time constraints on the process startup time. .PP .IP "LTTNG_UST_WITH_EXPERIMENTAL_BADDR_STATEDUMP" Experimentally allow liblttng-ust to perform a base-address statedump on session-enable. .PP .SH "SEE ALSO" .PP lttng-gen-tp(1), lttng(1), babeltrace(1), lttng-ust-cyg-profile(3), lttng-ust-dl(3), lttng-sessiond(8) .PP .SH "COMPATIBILITY" .PP Older lttng-ust libraries reject more recent, and incompatible, probe providers. Newer lttng-ust libraries accept older probe providers, even though some newer features might not be available with those providers. .PP .SH "BUGS" .PP LTTng-UST 2.0 and 2.1 lttng-ust libraries do not check for probe provider version compatibility. This can lead to out-of-bound accesses when using a more recent probe provider with an older lttng-ust library. These error only trigger when tracing is active. This issue has been fixed in LTTng-UST 2.2. If you encounter any issues or usability problem, please report it on our mailing list to help improve this project. .SH "CREDITS" liblttng-ust is distributed under the GNU Lesser General Public License version 2.1. The headers are distributed under the MIT license. .PP See http://lttng.org for more information on the LTTng project. .PP Mailing list for support and development: . .PP You can find us on IRC server irc.oftc.net (OFTC) in #lttng. .PP .SH "THANKS" Thanks to Ericsson for funding this work, providing real-life use-cases, and testing. Special thanks to Michel Dagenais and the DORSAL laboratory at Polytechnique de Montreal for the LTTng journey. .PP .SH "AUTHORS" .PP liblttng-ust was originally written by Mathieu Desnoyers, with additional contributions from various other people. It is currently maintained by Mathieu Desnoyers . .PP lttng-ust-2.4.0/doc/man/lttng-gen-tp.10000644000175000017500000000676512275157353014351 00000000000000.TH "LTTNG-GEN-TP" "1" "February 16, 2012" "" "" .SH "NAME" lttng-gen-tp \(em LTTng UST 2.x tracepoint code generator .SH "SYNOPSIS" .PP .nf lttng\-gen\-tp [OPTIONS] TEMPLATE_FILE .fi .SH "DESCRIPTION" .PP The LTTng project aims at providing highly efficient tracing tools for Linux. Its tracers help in tracking down performance issues and debugging problems involving multiple concurrent processes and threads. Tracing across multiple systems is also possible. The \fBlttng\-gen\-tp\fP tool simplifies the generation of the UST tracepoint files. It takes a simple template file and generates the necessary code to use the defined tracepoints in your application. The section TEMPLATE FILE FORMAT describes the content of the template file. Currently, the tool can generate the .h, .c and .o associated with your tracepoint. The generated .h can be directly included in your application. You can let the tool generate the .o or compile the .c yourself. You can compile the .c into a .o, .a or .so at your choice and link it with your application. Refer to the UST documentation for the advantages and disadvantage of each form. To compile the resulting .c file, you need to add the options "\-llttng-ust \-I.". .SH "OPTIONS" .PP This program follows the usual GNU command line syntax with long options starting with two dashes. Below is a summary of the available options. .PP .TP .BR "\-h, \-\-help" Show summary of possible options and commands. .TP .BR "\-v, \-\-verbose" Increase verbosity. .TP .BR "\-o, \-\-output" Specify the generated file. The type of the generated file depend on the file extension (.h, .c, .o). This option can be specified multiple times to generate different file type. .PP When no output is specified the default files are generated with the same base filename as the template file. The default files are: .h, .c, .o. .SH "TEMPLATE FILE FORMAT" The template file, which has the usual extension \fB.tp\fP, contains a list of TRACEPOINT_EVENT definitions and other optional definition entries like TRACEPOINT_LOGLEVEL. (See lttng-ust(3) for the complete list of available definition.) You write them as you would write them in a C header file. You can add comments with \fB/* */\fP, \fB//\fP and \fB#\fP. The provider name (the first field of TRACEPOINT_EVENT) must be the same for the whole file. .TP .SH "Example" .TP .nf TRACEPOINT_EVENT( sample_tracepoint, message, // Comment TP_ARGS(char *, text), /* Next are the fields */ TP_FIELDS( ctf_string(message, text) ) ) .SH "ENVIRONMENT VARIABLES" .PP When the tool generates a .o file, it will look for the following environment variables .PP .PP .IP "CC" Specify which C compiler to use. If the variable is not specified, the tool will try "cc" and "gcc" .IP "CFLAGS" Flags directly passed to the compiler .SH "SEE ALSO" .PP lttng-ust(3), lttng(1) .PP .SH "BUGS" .PP If you encounter any issues or usability problem, please report it on our mailing list to help improve this project. .SH "CREDITS" .PP lttng\-gen\-tp is distributed under the GNU General Public License version 2. See the file COPYING for details. .PP A Web site is available at http://lttng.org for more information on the LTTng project. .PP You can also find our git tree at http://git.lttng.org. .PP Mailing lists for support and development: . .PP You can find us on IRC server irc.oftc.net (OFTC) in #lttng. .PP .SH "AUTHORS" .PP lttng\-gen\-tp is written by Yannick Brosseau . .PP lttng-ust-2.4.0/doc/man/lttng-ust-cyg-profile.30000644000175000017500000000673712275157353016211 00000000000000.TH "LTTNG-UST-CYG-PROFILE" "3" "March 26, 2013" "" "" .SH "NAME" lttng-ust-cyg-profile \(em LTTng UST 2.x Function Tracing .SH "SYNOPSIS" Compile the application source code with option \fB-finstrument-functions\fP and launch your application either with: .TP \fBLD_PRELOAD=liblttng-ust-cyg-profile-fast.so\fP appname .PP or (to use verbose function tracing) .TP \fBLD_PRELOAD=liblttng-ust-cyg-profile.so\fP appname .PP All events emitted for function tracing are provided on loglevel TRACE_DEBUG_FUNCTION. The following command can be used to add function tracing events in your trace session: .TP .B lttng enable-event -u -a --loglevel-only TRACE_DEBUG_FUNCTION .SH "DESCRIPTION" For compilers that provide code generation option \fB-finstrument-functions\fP (e.g. GCC and LLVM/Clang) LTTng-UST provides shared libraries that allow users to trace the function flow of their applications. Function tracing comes in two flavors (each providing different trade-offs): .IP liblttng-ust-cyg-profile-fast.so This is a lightweight variant that should only be used where it can be guaranteed that the complete event stream is recorded without any missing events. Any kind of duplicate information is left out. At each function entry the address of the called function is recored as lttng_ust_cyg_profile_fast:func_entry. Function exit is recorded as lttng_ust_cyg_profile_fast:func_exit (without any field data). .IP liblttng-ust-cyg-profile.so This is a more robust variant which also works for use-cases where events might get discarded or not recorded from application startup. In these cases the trace analyzer needs extra information to be able to reconstruct the program flow. For each function entry and exit the address of the called function and the call site address are recorded as lttng_ust_cyg_profile:func_entry and lttng_ust_cyg_profile:func_exit. .SH "USAGE" To use function tracing you need to make sure the sources of your application are compiled with \-finstrument\-functions. It might be necessary to limit the number of source files where this option is used to prevent excessive amount of trace data to be generated during run time. Usually there are additional compiler flags that allow you to specify more fine grained selection of function instrumentation. For each instrumented function the executable will contain calls to profiling function hooks (after function entry and just before function exit). By preloading (LD_PRELOAD) one of the provided shared libraries, these profiling hooks get defined to emit LTTng events (as described above). Using this feature can result in massive amount trace data to be generated by the instrumented application. Application runtime is also considerably affected. Be careful on systems with limited resources. .SH "SEE ALSO" lttng-ust(3), lttng(1), gcc(1), ld.so(8) .SH "BUGS" If you encounter any issues or usability problem, please report it on our mailing list to help improve this project. .SH "CREDITS" liblttng-ust is distributed under the GNU Lesser General Public License version 2.1. The headers are distributed under the MIT license. See http://lttng.org for more information on the LTTng project. Mailing list for support and development: . You can find us on IRC server irc.oftc.net (OFTC) in #lttng. .SH "AUTHORS" liblttng-ust was originally written by Mathieu Desnoyers, with additional contributions from various other people. It is currently maintained by Mathieu Desnoyers . lttng-ust-2.4.0/doc/man/lttng-ust-dl.30000644000175000017500000000353612304151532014344 00000000000000.TH "LTTNG-UST-DL" "3" "December 19, 2013" "" "" .SH "NAME" lttng-ust-dl \(em LTTng UST 2.x Dynamic Linker Tracing .SH "SYNOPSIS" Launch your application with: .TP \fBLD_PRELOAD=liblttng-ust-dl.so\fP appname .PP This LD_PRELOAD library causes all calls to dlopen and dlclose in the application to be traced with LTTng. In addition to loading this library, enabling this tracing requires the following two events to be enabled: "ust_baddr:push" and "ust_baddr:pop". .SH "DESCRIPTION" The events have the following detailed definitions: .PP .IP "ust_baddr:push" This event is used to trace dlopen calls. The base address (where the dynamic linker has placed the shared object) is recorded in the "baddr" field. The path to the shared object gets recorded in the "sopath" field (as string). The file size of the loaded object (in bytes) is recorded to the "size" field and its time of last modification (in seconds since Epoch) is recorded in the "mtime" field. .IP "ust_baddr:pop" This event is used to trace dlclose calls. The base address of the shared object that got closed is recorded in the "baddr" field. .PP .SH "SEE ALSO" lttng-ust(3), dlopen(3), lttng(1) .SH "BUGS" If you encounter any issues or usability problem, please report it on our mailing list to help improve this project. .SH "CREDITS" liblttng-ust is distributed under the GNU Lesser General Public License version 2.1. The headers are distributed under the MIT license. See http://lttng.org for more information on the LTTng project. Mailing list for support and development: . You can find us on IRC server irc.oftc.net (OFTC) in #lttng. .SH "AUTHORS" liblttng-ust was originally written by Mathieu Desnoyers, with additional contributions from various other people. It is currently maintained by Mathieu Desnoyers . lttng-ust-2.4.0/doc/examples/0000755000175000017500000000000012304153163013040 500000000000000lttng-ust-2.4.0/doc/examples/README0000644000175000017500000000032012275157353013647 00000000000000To build the examples from the source tree, the BUILD_EXAMPLES_FROM_TREE environment variable must be defined. 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@NO_SHARED_FALSE@ done; \ @NO_SHARED_FALSE@ if [ x"$(SUBDIRS_JUL)" != x"" ]; then \ @NO_SHARED_FALSE@ for subdir in $(SUBDIRS_JUL); do \ @NO_SHARED_FALSE@ if [ -d $$subdir ]; then \ @NO_SHARED_FALSE@ (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) clean && cd ..) || exit 1; \ @NO_SHARED_FALSE@ fi; \ @NO_SHARED_FALSE@ done; \ @NO_SHARED_FALSE@ fi; \ @NO_SHARED_FALSE@ if [ x"$(srcdir)" != x"$(builddir)" ]; then \ @NO_SHARED_FALSE@ for subdir in $(SUBDIRS_PROXY) $(SUBDIRS_JUL); do \ @NO_SHARED_FALSE@ rm -rf $(builddir)/$$subdir; \ @NO_SHARED_FALSE@ done; \ @NO_SHARED_FALSE@ fi; # 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: lttng-ust-2.4.0/doc/examples/java-jul/0000755000175000017500000000000012304153163014551 500000000000000lttng-ust-2.4.0/doc/examples/java-jul/Makefile0000644000175000017500000000257112304151532016134 00000000000000# # Copyright (C) 2013 - David Goulet # # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED OR # IMPLIED. ANY USE IS AT YOUR OWN RISK. # # Permission is hereby granted to use or copy this program for any purpose, # provided the above notices are retained on all copies. Permission to modify # the code and to distribute modified code is granted, provided the above # notices are retained, and a notice that the code was modified is included # with the above copyright notice. # # This Makefile is not using automake so that users may see how to build a # program with tracepoint provider probes as stand-alone shared objects. # # This makefile is purposefully kept simple to support GNU and BSD make. # # Default JUL jar name. JARFILE=liblttng-ust-jul.jar # Check if the top level makefile overrides the JUL Jar file name. ifneq "$(JAVA_JARFILE_OVERRIDE)" "" JARFILE=$(JAVA_JARFILE_OVERRIDE) endif # Check if the top level makefile overrides the JUL classpath. ifeq "$(JAVA_CLASSPATH_OVERRIDE)" "" CLASSPATH=/usr/local/lib/lttng/java/$(JARFILE):/usr/lib/lttng/java/$(JARFILE) else CLASSPATH=$(JAVA_CLASSPATH_OVERRIDE)/$(JARFILE) endif JFLAGS = -g JC = javac -cp "$(CLASSPATH):." .SUFFIXES: .java .class .java.class: $(JC) $(JFLAGS) $*.java CLASSES = Hello.java all: classes classes: $(CLASSES:.java=.class) .PHONY: clean clean: $(RM) *.class lttng-ust-2.4.0/doc/examples/java-jul/Hello.java0000644000175000017500000000730312304151532016400 00000000000000/* * Copyright (C) 2013 - David Goulet * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; /* * That's the import you need being the path in the liblttng-ust-jul Jar file. */ import org.lttng.ust.jul.LTTngAgent; public class Hello { /* Of course :) */ private static final int answer = 42; /* * Static reference to the LTTngAgent. Used to dispose of it at the end * which is recommended but not mandatory to do. */ private static LTTngAgent lttngAgent; public static void main(String args[]) throws Exception { /* * For this example, a custom "hello" logger is created. Note that JUL * has a default "global" that can also be used. */ Logger helloLog = Logger.getLogger("hello"); /* * Get the LTTngAgent singelton reference. This will also initialize * the Agent and make it register to the session daemon if available. * When this returns, the Agent is registered and fully ready. If no * session daemon is found, it will return and retry every 3 seconds in * the background. TCP is used for communication. * * Note that the LTTngAgent once registered is a seperate thread in * your Java application. */ lttngAgent = LTTngAgent.getLTTngAgent(); /* * Gives you time to do some lttng commands before any event is hit. */ Thread.sleep(5000); /* Trigger a tracing event using the JUL Logger created before. */ helloLog.info("Hello World, the answer is " + answer); /* * From this point on, the above message will be collected in the trace * if the event "hello" is enabled for the JUL domain using the lttng * command line or the lttng-ctl API. For instance: * * $ lttng enable-event -j hello * * A new logger is created here and fired after. The Agent has an * internal timer that is fired every 5 seconds in order to enable * events that were not found at first but might need to be enabled * when new Logger appears. Unfortunately, there is no way right now to * get notify of that so we have to actively poll. * * Using the --all command for instance, it will make this Logger * available in a LTTng trace after the internal Agent's timer is * fired. (lttng enable-event -a -j). */ Logger helloLogDelayed = Logger.getLogger("hello_delay"); System.out.println("Firing hello delay in 10 seconds..."); Thread.sleep(10000); helloLogDelayed.info("Hello World delayed..."); System.out.println("Cleaning Hello"); /* * Again, this is highly recommended so the session daemon socket gets * cleaned up explicitely but it is not mandatory to do this step. */ lttngAgent.dispose(); } } lttng-ust-2.4.0/doc/examples/java-jul/run0000755000175000017500000000107112304151532015220 00000000000000#!/bin/bash # # The -cp path should be changed to the lttng ust JUL jar file on your system # or locally to the project. Same goes for the Java library path in order to # find the JNI JUL library. # DIR=`dirname $0` JARFILE="liblttng-ust-jul.jar" cd $DIR if [ -f "$DIR/.intree" ]; then CLASSPATH="../../../liblttng-ust-jul/$JARFILE" LIBPATH="../../../liblttng-ust-jul/.libs" else CLASSPATH="/usr/local/lib/lttng/java/$JARFILE:/usr/lib/lttng/java/$JARFILE" LIBPATH="/usr/local/lib:/usr/lib" fi java -cp "$CLASSPATH:." -Djava.library.path="$LIBPATH" Hello cd - lttng-ust-2.4.0/doc/examples/demo/0000755000175000017500000000000012304153163013764 500000000000000lttng-ust-2.4.0/doc/examples/demo/ust_tests_demo2.h0000644000175000017500000000451312275157353017217 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_tests_demo2 #if !defined(_TRACEPOINT_UST_TESTS_DEMO2_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_TESTS_DEMO2_H /* * Copyright (C) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_tests_demo2, loop, TP_ARGS(int, anint, int, netint, long *, values, char *, text, size_t, textlen, double, doublearg, float, floatarg), TP_FIELDS( ctf_integer(int, intfield, anint) ctf_integer_hex(int, intfield2, anint) ctf_integer(long, longfield, anint) ctf_integer_network(int, netintfield, netint) ctf_integer_network_hex(int, netintfieldhex, netint) ctf_array(long, arrfield1, values, 3) ctf_array_text(char, arrfield2, text, 10) ctf_sequence(char, seqfield1, text, size_t, textlen) ctf_sequence_text(char, seqfield2, text, size_t, textlen) ctf_string(stringfield, text) ctf_float(float, floatfield, floatarg) ctf_float(double, doublefield, doublearg) ) ) TRACEPOINT_LOGLEVEL(ust_tests_demo2, loop, TRACE_WARNING) #endif /* _TRACEPOINT_UST_TESTS_DEMO2_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_demo2.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/doc/examples/demo/README0000644000175000017500000000534012275157353014602 00000000000000This is a demo application used to test the LTTng userspace tracer. demo-trace shell script preloads the provider shared objects before executing the demo. Executing "demo" without the shell wrapper will not provide any tracing support. This ensures the demo binary can be distributed on distros without depending on having liblttng-ust.so in place. Note: the "demo" program must be compiled with "-ldl" on Linux, with "-lc" on BSD. The simplest command to trace the demo program are: lttng create lttng enable-event -u -a lttng start ./demo-trace lttng destroy That will create a trace in your $HOME/lttng-traces directory. The resulting babeltrace output should look like this: [554297567999315] ust_tests_demo:starting: { 1 }, { value = 123 } [554297568020834] ust_tests_demo2:loop: { 1 }, { intfield = 0, intfield2 = 0x0, longfield = 0, netintfield = 0, netintfieldhex = 0x0, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2 } [554297568024780] ust_tests_demo2:loop: { 1 }, { intfield = 1, intfield2 = 0x1, longfield = 1, netintfield = 1, netintfieldhex = 0x1, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2 } [554297568027050] ust_tests_demo2:loop: { 1 }, { intfield = 2, intfield2 = 0x2, longfield = 2, netintfield = 2, netintfieldhex = 0x2, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2 } [554297568029014] ust_tests_demo2:loop: { 1 }, { intfield = 3, intfield2 = 0x3, longfield = 3, netintfield = 3, netintfieldhex = 0x3, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2 } [554297568030861] ust_tests_demo2:loop: { 1 }, { intfield = 4, intfield2 = 0x4, longfield = 4, netintfield = 4, netintfieldhex = 0x4, arrfield1 = [ [0] = 1, [1] = 2, [2] = 3 ], arrfield2 = "test", _seqfield1_length = 4, seqfield1 = [ [0] = 116, [1] = 101, [2] = 115, [3] = 116 ], _seqfield2_length = 4, seqfield2 = "test", stringfield = "test", floatfield = 2222, doublefield = 2 } [554297568033138] ust_tests_demo:done: { 1 }, { value = 456 } [554297568034533] ust_tests_demo3:done: { 1 }, { value = 42 } lttng-ust-2.4.0/doc/examples/demo/tp.c0000644000175000017500000000231412275157353014507 00000000000000/* * tp.c * * Copyright (c) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define TRACEPOINT_CREATE_PROBES #include "ust_tests_demo.h" lttng-ust-2.4.0/doc/examples/demo/Makefile0000644000175000017500000000354712275157353015371 00000000000000# Copyright (C) 2013 Jérémie Galarneau # # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED # OR IMPLIED. ANY USE IS AT YOUR OWN RISK. # # Permission is hereby granted to use or copy this program for any # purpose, provided the above notices are retained on all copies. # Permission to modify the code and to distribute modified code is # granted, provided the above notices are retained, and a notice that # the code was modified is included with the above copyright notice. # # This Makefile is not using automake so that users may see how to build # a program with tracepoint provider probes as stand-alone shared objects. # # This makefile is purposefully kept simple to support GNU and BSD make. ifdef AM_CC CC = $(AM_CC) endif LIBS = -ldl # On Linux #LIBS = -lc # On BSD LOCAL_CPPFLAGS += -I. all: demo lttng-ust-provider-ust-tests-demo.so lttng-ust-provider-ust-tests-demo3.so tp.o: tp.c ust_tests_demo.h $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -fpic -c -o $@ $< tp2.o: tp2.c ust_tests_demo2.h $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -fpic -c -o $@ $< lttng-ust-provider-ust-tests-demo.so: tp.o tp2.o $(CC) -shared -Wl,--no-as-needed -o $@ $(LDFLAGS) $(CFLAGS) \ $(AM_LDFLAGS) $(AM_CFLAGS) -llttng-ust tp.o tp2.o tp3.o: tp3.c ust_tests_demo3.h $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -fpic -c -o $@ $< lttng-ust-provider-ust-tests-demo3.so: tp3.o $(CC) -shared -Wl,--no-as-needed -o $@ $(LDFLAGS) $(CFLAGS) \ $(AM_LDFLAGS) $(AM_CFLAGS) -llttng-ust tp3.o demo.o: demo.c $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -c -o $@ $< demo: demo.o $(CC) $(LDFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(AM_CFLAGS) \ -o $@ demo.o $(LIBS) .PHONY: clean clean: rm -f *.o *.so demo lttng-ust-2.4.0/doc/examples/demo/ust_tests_demo.h0000644000175000017500000000435512275157353017141 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_tests_demo #if !defined(_TRACEPOINT_UST_TESTS_DEMO_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_TESTS_DEMO_H /* * Copyright (C) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_tests_demo, starting, TP_ARGS(int, value), TP_FIELDS( ctf_integer(int, value, value) ) ) TRACEPOINT_LOGLEVEL(ust_tests_demo, starting, TRACE_CRIT) /* * Dummy model information, just for example. TODO: we should check if * EMF model URI have some standard format we should follow. */ TRACEPOINT_MODEL_EMF_URI(ust_tests_demo, starting, "http://example.com/path_to_model?q=ust_tests_demo:starting") TRACEPOINT_EVENT(ust_tests_demo, done, TP_ARGS(int, value), TP_FIELDS( ctf_integer(int, value, value) ) ) TRACEPOINT_LOGLEVEL(ust_tests_demo, done, TRACE_CRIT) TRACEPOINT_MODEL_EMF_URI(ust_tests_demo, done, "http://example.com/path_to_model?q=ust_tests_demo:done") #endif /* _TRACEPOINT_UST_TESTS_DEMO_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_demo.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/doc/examples/demo/demo.c0000644000175000017500000000343012275157353015010 00000000000000/* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #define TRACEPOINT_DEFINE #define TRACEPOINT_PROBE_DYNAMIC_LINKAGE #include "ust_tests_demo.h" #include "ust_tests_demo2.h" #include "ust_tests_demo3.h" int main(int argc, char **argv) { int i, netint; long values[] = { 1, 2, 3 }; char text[10] = "test"; double dbl = 2.0; float flt = 2222.0; int delay = 0; if (argc == 2) delay = atoi(argv[1]); fprintf(stderr, "Demo program starting.\n"); sleep(delay); fprintf(stderr, "Tracing... "); tracepoint(ust_tests_demo, starting, 123); for (i = 0; i < 5; i++) { netint = htonl(i); tracepoint(ust_tests_demo2, loop, i, netint, values, text, strlen(text), dbl, flt); } tracepoint(ust_tests_demo, done, 456); tracepoint(ust_tests_demo3, done, 42); fprintf(stderr, " done.\n"); return 0; } lttng-ust-2.4.0/doc/examples/demo/tp3.c0000644000175000017500000000231612275157353014574 00000000000000/* * tp3.c * * Copyright (c) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define TRACEPOINT_CREATE_PROBES #include "ust_tests_demo3.h" lttng-ust-2.4.0/doc/examples/demo/demo-trace0000755000175000017500000000024512275157353015667 00000000000000#!/bin/sh DIR=$(dirname $0) DIR=$(readlink -f $DIR) LD_PRELOAD=$DIR/lttng-ust-provider-ust-tests-demo.so:$DIR/lttng-ust-provider-ust-tests-demo3.so $DIR/demo ${*} lttng-ust-2.4.0/doc/examples/demo/ust_tests_demo3.h0000644000175000017500000000334012275157353017215 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_tests_demo3 #if !defined(_TRACEPOINT_UST_TESTS_DEMO3_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_TESTS_DEMO3_H /* * Copyright (C) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_tests_demo3, done, TP_ARGS(int, value), TP_FIELDS( ctf_integer(int, value, value) ) ) TRACEPOINT_LOGLEVEL(ust_tests_demo3, done, TRACE_WARNING) #endif /* _TRACEPOINT_UST_TESTS_DEMO3_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_demo3.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/doc/examples/demo/tp2.c0000644000175000017500000000231612275157353014573 00000000000000/* * tp2.c * * Copyright (c) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define TRACEPOINT_CREATE_PROBES #include "ust_tests_demo2.h" lttng-ust-2.4.0/doc/examples/gen-tp/0000755000175000017500000000000012304153163014232 500000000000000lttng-ust-2.4.0/doc/examples/gen-tp/Makefile0000644000175000017500000000417412275157353015634 00000000000000# Copyright (C) 2011-2012 Matthew Khouzam # Copyright (C) 2012 Mathieu Desnoyers # Copyright (C) 2012 Yannick Brosseau # # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED # OR IMPLIED. ANY USE IS AT YOUR OWN RISK. # # Permission is hereby granted to use or copy this program for any # purpose, provided the above notices are retained on all copies. # Permission to modify the code and to distribute modified code is # granted, provided the above notices are retained, and a notice that # the code was modified is included with the above copyright notice. # # This makefile is not using automake so that people can see how to make # simply. It builds a program with a statically embedded tracepoint # provider probe. # # This makefile is purposefully kept simple to support GNU and BSD make. ifdef AM_CC CC = $(AM_CC) endif LIBS = -ldl -llttng-ust #On Linux #LIBS = -lc -llttng-ust #On BSD all: sample sample: sample.o sample_tracepoint.o $(CC) $(LDFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(AM_CFLAGS) \ -o $@ sample.o sample_tracepoint.o $(LIBS) sample.o: sample.c sample_tracepoint.h $(CC) $(CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) $(AM_CFLAGS) \ -c -o $@ $< # Use this command to compile the .c manually #sample_tracepoint.o: sample_tracepoint.c sample_tracepoint.h # $(CC) $(CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) $(AM_CFLAGS) \ # -I. -c -o $@ $< # This rule generate .o only and depends on rules for generating # the .h and .c %.o: %.tp %.c %.h CPPFLAGS="$(CPPFLAGS) $(AM_CPPFLAGS)" \ CFLAGS="$(CFLAGS) $(AM_CFLAGS)" \ LDFLAGS="$(LDFLAGS) $(AM_LDFLAGS)" \ CC="$(CC)" \ $(LTTNG_GEN_TP_PATH)lttng-gen-tp -o $@ $< # The following rule can be used to generate all files instead of having one # for each file type. Note that the sample.o has a dependency on the # .h, so you need to change that if you remove the %.h rule. #%.o: %.tp # lttng-gen-tp $< %.h: %.tp $(LTTNG_GEN_TP_PATH)lttng-gen-tp -o $@ $< %.c: %.tp $(LTTNG_GEN_TP_PATH)lttng-gen-tp -o $@ $< .PHONY: clean clean: rm -f *.o sample rm -f sample_tracepoint.h sample_tracepoint.c lttng-ust-2.4.0/doc/examples/gen-tp/sample.c0000644000175000017500000000265412200722032015576 00000000000000/* * Copyright (C) 2011-2012 Matthew Khouzam * Copyright (C) 2012 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include "sample_tracepoint.h" int main(int argc, char **argv) { int i = 0; for (i = 0; i < 100000; i++) { tracepoint(sample_tracepoint, message, "Hello World\n"); usleep(1); } return 0; } lttng-ust-2.4.0/doc/examples/gen-tp/sample_tracepoint.tp0000644000175000017500000000035211723773223020241 00000000000000TRACEPOINT_EVENT( sample_tracepoint, message, // C++ Style comment TP_ARGS(char *, text), TP_FIELDS( ctf_string(message, text) ) ) /* * Longer comments */ TRACEPOINT_LOGLEVEL( sample_tracepoint, message, TRACE_WARNING) lttng-ust-2.4.0/doc/examples/hello-static-lib/0000755000175000017500000000000012304153163016174 500000000000000lttng-ust-2.4.0/doc/examples/hello-static-lib/README0000644000175000017500000000026312275157353017011 00000000000000This is a "hello world" application used to verify that an instrumented program can be built successfully and linked with tracepoint providers built as a separate static library. lttng-ust-2.4.0/doc/examples/hello-static-lib/tp.c0000644000175000017500000000231512275157353016720 00000000000000/* * tp.c * * Copyright (c) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define TRACEPOINT_CREATE_PROBES #include "ust_tests_hello.h" lttng-ust-2.4.0/doc/examples/hello-static-lib/Makefile0000644000175000017500000000263512275157353017576 00000000000000# Copyright (C) 2013 Jérémie Galarneau # # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED # OR IMPLIED. ANY USE IS AT YOUR OWN RISK. # # Permission is hereby granted to use or copy this program for any # purpose, provided the above notices are retained on all copies. # Permission to modify the code and to distribute modified code is # granted, provided the above notices are retained, and a notice that # the code was modified is included with the above copyright notice. # # This Makefile is not using automake so that users may see how to build # a program with tracepoint provider probes compiled as static libraries. # # This makefile is purposefully kept simple to support GNU and BSD make. ifdef AM_CC CC = $(AM_CC) endif LOCAL_CPPFLAGS += -I. LIBS = -ldl -llttng-ust # On Linux #LIBS = -lc -llttng-ust # On BSD all: hello lttng-ust-provider-hello.o: tp.c ust_tests_hello.h $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -c -o $@ $< lttng-ust-provider-hello.a: lttng-ust-provider-hello.o ar -rc $@ lttng-ust-provider-hello.o hello.o: hello.c $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -c -o $@ $< hello: hello.o lttng-ust-provider-hello.a $(CC) -o $@ $(LDFLAGS) $(CPPFLAGS) $(AM_LDFLAGS) $(AM_CFLAGS) \ hello.o lttng-ust-provider-hello.a $(LIBS) .PHONY: clean clean: rm -f *.o *.a hello lttng-ust-2.4.0/doc/examples/hello-static-lib/ust_tests_hello.h0000644000175000017500000000454412275157353021530 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_tests_hello #if !defined(_TRACEPOINT_UST_TESTS_HELLO_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_TESTS_HELLO_H /* * Copyright (C) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_tests_hello, tptest, TP_ARGS(int, anint, int, netint, long *, values, char *, text, size_t, textlen, double, doublearg, float, floatarg), TP_FIELDS( ctf_integer(int, intfield, anint) ctf_integer_hex(int, intfield2, anint) ctf_integer(long, longfield, anint) ctf_integer_network(int, netintfield, netint) ctf_integer_network_hex(int, netintfieldhex, netint) ctf_array(long, arrfield1, values, 3) ctf_array_text(char, arrfield2, text, 10) ctf_sequence(char, seqfield1, text, size_t, textlen) ctf_sequence_text(char, seqfield2, text, size_t, textlen) ctf_string(stringfield, text) ctf_float(float, floatfield, floatarg) ctf_float(double, doublefield, doublearg) ) ) TRACEPOINT_EVENT(ust_tests_hello, tptest_sighandler, TP_ARGS(), TP_FIELDS() ) #endif /* _TRACEPOINT_UST_TESTS_HELLO_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_hello.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/doc/examples/hello-static-lib/hello.c0000644000175000017500000000426612275157353017407 00000000000000/* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #define TRACEPOINT_DEFINE #include "ust_tests_hello.h" void inthandler(int sig) { printf("in SIGUSR1 handler\n"); tracepoint(ust_tests_hello, tptest_sighandler); } int init_int_handler(void) { int result; struct sigaction act; memset(&act, 0, sizeof(act)); result = sigemptyset(&act.sa_mask); if (result == -1) { perror("sigemptyset"); return -1; } act.sa_handler = inthandler; act.sa_flags = SA_RESTART; /* Only defer ourselves. Also, try to restart interrupted * syscalls to disturb the traced program as little as possible. */ result = sigaction(SIGUSR1, &act, NULL); if (result == -1) { perror("sigaction"); return -1; } return 0; } int main(int argc, char **argv) { int i, netint; long values[] = { 1, 2, 3 }; char text[10] = "test"; double dbl = 2.0; float flt = 2222.0; int delay = 0; init_int_handler(); if (argc == 2) delay = atoi(argv[1]); fprintf(stderr, "Hello, World!\n"); sleep(delay); fprintf(stderr, "Tracing... "); for (i = 0; i < 1000000; i++) { netint = htonl(i); tracepoint(ust_tests_hello, tptest, i, netint, values, text, strlen(text), dbl, flt); } fprintf(stderr, " done.\n"); return 0; } lttng-ust-2.4.0/doc/examples/easy-ust/0000755000175000017500000000000012304153163014612 500000000000000lttng-ust-2.4.0/doc/examples/easy-ust/tp.c0000644000175000017500000000256212200722032015316 00000000000000/* * tp.c * * Copyright (c) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ /* * Defining macro creates the code objects of the traceprobes, only do * it once per file */ #define TRACEPOINT_CREATE_PROBES /* * The header containing our TRACEPOINT_EVENTs. */ #include "sample_component_provider.h" lttng-ust-2.4.0/doc/examples/easy-ust/Makefile0000644000175000017500000000306312275157353016210 00000000000000# Copyright (C) 2011-2012 Matthew Khouzam # Copyright (C) 2012 Mathieu Desnoyers # # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED # OR IMPLIED. ANY USE IS AT YOUR OWN RISK. # # Permission is hereby granted to use or copy this program for any # purpose, provided the above notices are retained on all copies. # Permission to modify the code and to distribute modified code is # granted, provided the above notices are retained, and a notice that # the code was modified is included with the above copyright notice. # # This makefile is not using automake so that users can see how to build # a program with a statically embedded tracepoint provider probe. # the "html" target helps for documentation (req. code2html) # # This makefile is purposefully kept simple to support GNU and BSD make. ifdef AM_CC CC = $(AM_CC) endif LIBS = -ldl -llttng-ust # On Linux #LIBS = -lc -llttng-ust # On BSD LOCAL_CPPFLAGS += -I. all: sample sample: sample.o tp.o $(CC) -o $@ $(LDFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(AM_CFLAGS) \ sample.o tp.o $(LIBS) sample.o: sample.c sample_component_provider.h $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -c -o $@ $< tp.o: tp.c sample_component_provider.h $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) $(AM_CPPFLAGS) \ $(AM_CFLAGS) -c -o $@ $< html: sample_component_provider.html sample.html tp.html %.html: %.c code2html -lc $< $@ %.html : %.h code2html -lc $< $@ .PHONY: clean clean: rm -f *.html rm -f *.o sample lttng-ust-2.4.0/doc/examples/easy-ust/sample_component_provider.h0000644000175000017500000001065412275157353022202 00000000000000/* * Copyright (C) 2011-2012 Mathieu Desnoyers * Copyright (C) 2011-2012 Matthew Khouzam * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ /* * Sample lttng-ust tracepoint provider. */ /* * First part: defines * We undef a macro before defining it as it can be used in several files. */ /* * Must be included before include tracepoint provider * ex.: project_event * ex.: project_component_event * * Optional company name goes here * ex.: com_efficios_project_component_event * * In this example, "sample" is the project, and "component" is the * component. */ #undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER sample_component /* * include file (this files's name) */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./sample_component_provider.h" /* * Add this precompiler conditionals to ensure the tracepoint event generation * can include this file more than once. */ #if !defined(_SAMPLE_COMPONENT_PROVIDER_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _SAMPLE_COMPONENT_PROVIDER_H /* * Add this to allow programs to call "tracepoint(...): */ #include /* * The following tracepoint event writes a message (c string) into the * field message of the trace event message in the provider * sample_component in other words: * * sample_component:message:message = text. */ TRACEPOINT_EVENT( /* * provider name, not a variable but a string starting with a letter * and containing either letters, numbers or underscores. * Needs to be the same as TRACEPOINT_PROVIDER */ sample_component, /* * tracepoint name, same format as sample provider. Does not need to be * declared before. in this case the name is "message" */ message, /* * TP_ARGS macro contains the arguments passed for the tracepoint * it is in the following format * TP_ARGS( type1, name1, type2, name2, ... type10, name10) * where there can be from zero to ten elements. * typeN is the datatype, such as int, struct or double **. * name is the variable name (in "int myInt" the name would be myint) * TP_ARGS() is valid to mean no arguments * TP_ARGS( void ) is valid too */ TP_ARGS(char *, text), /* * TP_FIELDS describes how to write the fields of the trace event. * You can use the args here */ TP_FIELDS( /* * The ctf_string macro takes a c string and writes it into a field * named "message" */ ctf_string(message, text) ) ) /* * Trace loglevel, shows the level of the trace event. It can be TRACE_EMERG, * TRACE_ALERT, TRACE_CRIT, TRACE_ERR, TRACE_WARNING, TRACE_INFO or others. * If this is not set, TRACE_DEFAULT is assumed. * The first two arguments identify the tracepoint * See details in line 347 */ TRACEPOINT_LOGLEVEL( /* * The provider name, must be the same as the provider name in the * TRACEPOINT_EVENT and as TRACEPOINT_PROVIDER above. */ sample_component, /* * The tracepoint name, must be the same as the tracepoint name in the * TRACEPOINT_EVENT */ message, /* * The tracepoint loglevel. Warning, some levels are abbreviated and * others are not, please see */ TRACE_WARNING) #endif /* _SAMPLE_COMPONENT_PROVIDER_H */ /* * Add this after defining the tracepoint events to expand the macros. */ #include lttng-ust-2.4.0/doc/examples/easy-ust/sample.c0000644000175000017500000000307612200722032016155 00000000000000/* * Copyright (C) 2011-2012 Matthew Khouzam * Copyright (C) 2012 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include /* * We need to define TRACEPOINT_DEFINE in one C file in the program * before including provider headers. */ #define TRACEPOINT_DEFINE #include "sample_component_provider.h" int main(int argc, char **argv) { int i = 0; for (i = 0; i < 100000; i++) { tracepoint(sample_component, message, "Hello World"); usleep(1); } return 0; } lttng-ust-2.4.0/README0000644000175000017500000001566612304144741011275 00000000000000LTTNG USERSPACE TRACER (LTTng-UST) ---------------------------- UST web site: http://lttng.org Updated versions of this package may be found at: * Releases: http://lttng.org/download * GitWeb: http://git.lttng.org (project: lttng-ust) * Git: git://git.lttng.org/lttng-ust.git PREREQUISITES: - liburcu Userspace RCU library, by Mathieu Desnoyers and Paul E. McKenney -> This release depends on liburcu v0.7.2 * Debian/Ubuntu package: liburcu-dev * Website: http://lttng.org/urcu * Releases: http://lttng.org/files/urcu * GitWeb: http://lttng.org/cgi-bin/gitweb.cgi?p=userspace-rcu.git;a=summary * Git: git://lttng.org/userspace-rcu.git For developers using the git tree: This source tree is based on the autotools suite from GNU to simplify portability. Here are some things you should have on your system in order to compile the git repository tree : - GNU autotools (automake >=1.10, autoconf >=2.50, autoheader >=2.50) (make sure your system wide "automake" points to a recent version!) - GNU Libtool >=2.2 (for more information, go to http://www.gnu.org/software/autoconf/) - Perl (optional) Needed for make check and tests. If you get the tree from the repository, you will need to use the "bootstrap" script in the root of the tree. It calls all the GNU tools needed to prepare the tree configuration. INSTALLATION INSTRUCTIONS: - Download, compile and install liburcu. - In this package's tree, run ./configure. - Run make. - Run make install. - Run ldconfig. If compiling from the git repository, run ./bootstrap before running the configure script, to generate it. Note that configure sets '/usr/local' as the default prefix for files it installs. However, this path is not part of most distributions' default library path which will cause builds depending on liblttng-ust to fail unless '-L/usr/local/lib' is added to LDFLAGS. You may provide a custom prefix to configure by using the --prefix switch. USAGE: - Create an instrumentation header following the tracepoint examples. See lttng/tracepoint.h, and examples. There are 2 ways to compile the Tracepoint Provider with the application: either statically or dynamically. Please follow carefully: 1.1) Compile the Tracepoint provider with the application, either directly or through a static library (.a): - Into exactly one object of your application: define "TRACEPOINT_DEFINE" and include the tracepoint provider. - Use "-I." for the compilation unit containing the tracepoint provider include (e.g. tp.c). - Link application with "-ldl" on Linux, with "-lc" on BSD. - If building the provider directly into the application, link the application with "-llttng-ust". - If building a static library for the provider, link the static library with "-llttng-ust". - Include the tracepoint provider header into all C files using the provider. - Examples: - doc/examples/easy-ust/ sample.c sample_component_provider.h tp.c Makefile - doc/examples/hello-static-lib/ hello.c tp.c ust_test_hello.h Makefile 2) Compile the Tracepoint Provider separately from the application, using dynamic linking: - Into exactly one object of your application: define "TRACEPOINT_DEFINE" _and_ also define "TRACEPOINT_PROBE_DYNAMIC_LINKAGE", then include the tracepoint provider header. - Include the tracepoint provider header into all instrumented C files that use the provider. - Compile the tracepoint provider with "-I.". - Link the tracepoint provider with "-llttng-ust". - Link application with "-ldl" on Linux, "-lc" on BSD. - Set a LD_PRELOAD environment to preload the tracepoint provider shared object before starting the application when tracing is needed. Another way is to dlopen the tracepoint probe when needed by the application. - Example: - doc/examples/demo demo.c tp*.c ust_tests_demo*.h demo-trace Makefile - Note about dlclose() usage: it is not safe to use dlclose on a provider shared object that is being actively used for tracing due to a lack of reference counting from lttng-ust to the used shared object. - Enable instrumentation and control tracing with the "lttng" command from lttng-tools. See lttng-tools doc/quickstart.txt. - Note for C++ support: since LTTng-UST 2.3, both tracepoints and tracepoint probes can be compiled in C++. To compile tracepoint probes in C++, you need g++ >= 4.7 or Clang. ENVIRONMENT VARIABLES: - liblttng-ust debug can be activated by setting the environment variable "LTTNG_UST_DEBUG" when launching the application. It can also be enabled at compile-time by compiling libust with -DLTTNG_UST_DEBUG. - The environment variable "LTTNG_UST_REGISTER_TIMEOUT" can be used to specify how long the applications should wait for sessiond "registration done" command before proceeding to execute the main program. The default is 3000ms (3 seconds). The timeout value is specified in milliseconds. The value 0 means "don't wait". The value -1 means "wait forever". Setting this environment variable to 0 is recommended for applications with time constraints on the process startup time. - The compilation flag "-DLTTNG_UST_DEBUG_VALGRIND" should be enabled at build time to allow liblttng-ust to be used with valgrind (side-effect: disables per-cpu buffering). TRACE VIEWER: Use babeltrace for viewing traces generated by LTTng UST 2.x. See http://lttng.org for download. CONTACT: Maintainer: Mathieu Desnoyers Mailing list: lttng-dev@lists.lttng.org PACKAGE CONTENTS: This package contains the following elements. - liblttng-ust The actual userspace tracing library that must be linked to the instrumented programs. - include The public header files that will be installed on the system. - tests Various test programs - liblttng-ust-libc-wrapper An example library that can be LD_PRELOAD'ed to instrument some calls to libc (currently malloc() and free()) in any program without need to recompile it. - liblttng-ust-fork A library that is LD_PRELOAD'ed, and that hijacks calls to several system calls in order to trace across these calls. It _has_ to be LD_PRELOAD'ed in order to hijack calls. In contrast, libust may be linked at build time. - liblttng-ust-ctl A library to control tracing in other processes. Used by lttng-tools. - liblttng-ust-comm A static library shared between libust and lttng-tools, that provides functions that allow these components to communicate together. - libringbuffer The ring buffer implementation used within LTTng-UST. - snprintf An asynchronous signal-safe version of snprintf. - liblttng-ust-java A simple library that uses JNI to allow tracing in java programs. See liblttng-ust-java/README for build instructions. lttng-ust-2.4.0/COPYING0000644000175000017500000000435212123372601011433 00000000000000LTTng UST - Userspace Tracer Copyright (C) 2009-2012 Mathieu Desnoyers Copyright (C) 2010 Pierre-Marc Fournier, Nils Carlson, David Goulet and others. * This library is licensed under the LGPL v2.1 license, except when specified otherwise. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; only version 2.1 of the License. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * System headers are MIT-licensed (BSD style): 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. * liblttng-ust-ctl/ustctl.c is GPL v2. It is only used by the lttng-sessiond program. 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; version 2 of the License only. 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. lttng-ust-2.4.0/Makefile.am0000644000175000017500000000100212304151532012420 00000000000000ACLOCAL_AMFLAGS = -I config SUBDIRS = . include snprintf libringbuffer liblttng-ust-comm \ liblttng-ust \ liblttng-ust-ctl \ liblttng-ust-fork \ liblttng-ust-dl \ liblttng-ust-libc-wrapper \ liblttng-ust-cyg-profile \ tools if BUILD_JNI_INTERFACE SUBDIRS += liblttng-ust-java liblttng-ust-jul endif SUBDIRS += tests doc #temporarily disabled # liblttng-ust-malloc pkgconfigdir = $(libdir)/pkgconfig pkgconfig_DATA = lttng-ust.pc dist_doc_DATA = README ChangeLog dist_noinst_DATA = CodingStyle lttng-ust-2.4.0/liblttng-ust/0000755000175000017500000000000012304153162013104 500000000000000lttng-ust-2.4.0/liblttng-ust/lttng-ust-comm.c0000644000175000017500000011644512304151532016074 00000000000000/* * lttng-ust-comm.c * * Copyright (C) 2011 David Goulet * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _LGPL_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "tracepoint-internal.h" #include "lttng-tracer-core.h" #include "compat.h" #include "../libringbuffer/tlsfixup.h" #include "lttng-ust-baddr.h" /* * Has lttng ust comm constructor been called ? */ static int initialized; /* * The ust_lock/ust_unlock lock is used as a communication thread mutex. * Held when handling a command, also held by fork() to deal with * removal of threads, and by exit path. * * The UST lock is the centralized mutex across UST tracing control and * probe registration. * * ust_exit_mutex must never nest in ust_mutex. */ static pthread_mutex_t ust_mutex = PTHREAD_MUTEX_INITIALIZER; /* * ust_exit_mutex protects thread_active variable wrt thread exit. It * cannot be done by ust_mutex because pthread_cancel(), which takes an * internal libc lock, cannot nest within ust_mutex. * * It never nests within a ust_mutex. */ static pthread_mutex_t ust_exit_mutex = PTHREAD_MUTEX_INITIALIZER; /* Should the ust comm thread quit ? */ static int lttng_ust_comm_should_quit; /* * Return 0 on success, -1 if should quilt. * The lock is taken in both cases. */ int ust_lock(void) { pthread_mutex_lock(&ust_mutex); if (lttng_ust_comm_should_quit) { return -1; } else { return 0; } } /* * ust_lock_nocheck() can be used in constructors/destructors, because * they are already nested within the dynamic loader lock, and therefore * have exclusive access against execution of liblttng-ust destructor. */ void ust_lock_nocheck(void) { pthread_mutex_lock(&ust_mutex); } void ust_unlock(void) { pthread_mutex_unlock(&ust_mutex); } /* * Wait for either of these before continuing to the main * program: * - the register_done message from sessiond daemon * (will let the sessiond daemon enable sessions before main * starts.) * - sessiond daemon is not reachable. * - timeout (ensuring applications are resilient to session * daemon problems). */ static sem_t constructor_wait; /* * Doing this for both the global and local sessiond. */ static int sem_count = { 2 }; /* * Counting nesting within lttng-ust. Used to ensure that calling fork() * from liblttng-ust does not execute the pre/post fork handlers. */ static DEFINE_URCU_TLS(int, lttng_ust_nest_count); /* * Info about socket and associated listener thread. */ struct sock_info { const char *name; pthread_t ust_listener; /* listener thread */ int root_handle; int constructor_sem_posted; int allowed; int global; int thread_active; char sock_path[PATH_MAX]; int socket; int notify_socket; char wait_shm_path[PATH_MAX]; char *wait_shm_mmap; /* Keep track of lazy state dump not performed yet. */ int statedump_pending; }; /* Socket from app (connect) to session daemon (listen) for communication */ struct sock_info global_apps = { .name = "global", .global = 1, .root_handle = -1, .allowed = 1, .thread_active = 0, .sock_path = LTTNG_DEFAULT_RUNDIR "/" LTTNG_UST_SOCK_FILENAME, .socket = -1, .notify_socket = -1, .wait_shm_path = "/" LTTNG_UST_WAIT_FILENAME, .statedump_pending = 0, }; /* TODO: allow global_apps_sock_path override */ struct sock_info local_apps = { .name = "local", .global = 0, .root_handle = -1, .allowed = 0, /* Check setuid bit first */ .thread_active = 0, .socket = -1, .notify_socket = -1, .statedump_pending = 0, }; static int wait_poll_fallback; static const char *cmd_name_mapping[] = { [ LTTNG_UST_RELEASE ] = "Release", [ LTTNG_UST_SESSION ] = "Create Session", [ LTTNG_UST_TRACER_VERSION ] = "Get Tracer Version", [ LTTNG_UST_TRACEPOINT_LIST ] = "Create Tracepoint List", [ LTTNG_UST_WAIT_QUIESCENT ] = "Wait for Quiescent State", [ LTTNG_UST_REGISTER_DONE ] = "Registration Done", [ LTTNG_UST_TRACEPOINT_FIELD_LIST ] = "Create Tracepoint Field List", /* Session FD commands */ [ LTTNG_UST_CHANNEL ] = "Create Channel", [ LTTNG_UST_SESSION_START ] = "Start Session", [ LTTNG_UST_SESSION_STOP ] = "Stop Session", /* Channel FD commands */ [ LTTNG_UST_STREAM ] = "Create Stream", [ LTTNG_UST_EVENT ] = "Create Event", /* Event and Channel FD commands */ [ LTTNG_UST_CONTEXT ] = "Create Context", [ LTTNG_UST_FLUSH_BUFFER ] = "Flush Buffer", /* Event, Channel and Session commands */ [ LTTNG_UST_ENABLE ] = "Enable", [ LTTNG_UST_DISABLE ] = "Disable", /* Tracepoint list commands */ [ LTTNG_UST_TRACEPOINT_LIST_GET ] = "List Next Tracepoint", [ LTTNG_UST_TRACEPOINT_FIELD_LIST_GET ] = "List Next Tracepoint Field", /* Event FD commands */ [ LTTNG_UST_FILTER ] = "Create Filter", [ LTTNG_UST_EXCLUSION ] = "Add exclusions to event", }; static const char *str_timeout; static int got_timeout_env; extern void lttng_ring_buffer_client_overwrite_init(void); extern void lttng_ring_buffer_client_overwrite_rt_init(void); extern void lttng_ring_buffer_client_discard_init(void); extern void lttng_ring_buffer_client_discard_rt_init(void); extern void lttng_ring_buffer_metadata_client_init(void); extern void lttng_ring_buffer_client_overwrite_exit(void); extern void lttng_ring_buffer_client_overwrite_rt_exit(void); extern void lttng_ring_buffer_client_discard_exit(void); extern void lttng_ring_buffer_client_discard_rt_exit(void); extern void lttng_ring_buffer_metadata_client_exit(void); /* * Returns the HOME directory path. Caller MUST NOT free(3) the returned * pointer. */ static const char *get_lttng_home_dir(void) { const char *val; val = (const char *) getenv("LTTNG_HOME"); if (val != NULL) { return val; } return (const char *) getenv("HOME"); } /* * Force a read (imply TLS fixup for dlopen) of TLS variables. */ static void lttng_fixup_nest_count_tls(void) { asm volatile ("" : : "m" (URCU_TLS(lttng_ust_nest_count))); } int lttng_get_notify_socket(void *owner) { struct sock_info *info = owner; return info->notify_socket; } static void print_cmd(int cmd, int handle) { const char *cmd_name = "Unknown"; if (cmd >= 0 && cmd < LTTNG_ARRAY_SIZE(cmd_name_mapping) && cmd_name_mapping[cmd]) { cmd_name = cmd_name_mapping[cmd]; } DBG("Message Received \"%s\" (%d), Handle \"%s\" (%d)", cmd_name, cmd, lttng_ust_obj_get_name(handle), handle); } static int setup_local_apps(void) { const char *home_dir; uid_t uid; uid = getuid(); /* * Disallow per-user tracing for setuid binaries. */ if (uid != geteuid()) { assert(local_apps.allowed == 0); return 0; } home_dir = get_lttng_home_dir(); if (!home_dir) { WARN("HOME environment variable not set. Disabling LTTng-UST per-user tracing."); assert(local_apps.allowed == 0); return -ENOENT; } local_apps.allowed = 1; snprintf(local_apps.sock_path, PATH_MAX, "%s/%s/%s", home_dir, LTTNG_DEFAULT_HOME_RUNDIR, LTTNG_UST_SOCK_FILENAME); snprintf(local_apps.wait_shm_path, PATH_MAX, "/%s-%u", LTTNG_UST_WAIT_FILENAME, uid); return 0; } /* * Get notify_sock timeout, in ms. * -1: don't wait. 0: wait forever. >0: timeout, in ms. */ static long get_timeout(void) { long constructor_delay_ms = LTTNG_UST_DEFAULT_CONSTRUCTOR_TIMEOUT_MS; if (!got_timeout_env) { str_timeout = getenv("LTTNG_UST_REGISTER_TIMEOUT"); got_timeout_env = 1; } if (str_timeout) constructor_delay_ms = strtol(str_timeout, NULL, 10); return constructor_delay_ms; } static long get_notify_sock_timeout(void) { return get_timeout(); } /* * Return values: -1: don't wait. 0: wait forever. 1: timeout wait. */ static int get_constructor_timeout(struct timespec *constructor_timeout) { long constructor_delay_ms; int ret; constructor_delay_ms = get_timeout(); switch (constructor_delay_ms) { case -1:/* fall-through */ case 0: return constructor_delay_ms; default: break; } /* * If we are unable to find the current time, don't wait. */ ret = clock_gettime(CLOCK_REALTIME, constructor_timeout); if (ret) { return -1; } constructor_timeout->tv_sec += constructor_delay_ms / 1000UL; constructor_timeout->tv_nsec += (constructor_delay_ms % 1000UL) * 1000000UL; if (constructor_timeout->tv_nsec >= 1000000000UL) { constructor_timeout->tv_sec++; constructor_timeout->tv_nsec -= 1000000000UL; } return 1; } static int register_to_sessiond(int socket, enum ustctl_socket_type type) { return ustcomm_send_reg_msg(socket, type, CAA_BITS_PER_LONG, lttng_alignof(uint8_t) * CHAR_BIT, lttng_alignof(uint16_t) * CHAR_BIT, lttng_alignof(uint32_t) * CHAR_BIT, lttng_alignof(uint64_t) * CHAR_BIT, lttng_alignof(unsigned long) * CHAR_BIT); } static int send_reply(int sock, struct ustcomm_ust_reply *lur) { ssize_t len; len = ustcomm_send_unix_sock(sock, lur, sizeof(*lur)); switch (len) { case sizeof(*lur): DBG("message successfully sent"); return 0; default: if (len == -ECONNRESET) { DBG("remote end closed connection"); return 0; } if (len < 0) return len; DBG("incorrect message size: %zd", len); return -EINVAL; } } static int handle_register_done(struct sock_info *sock_info) { int ret; if (sock_info->constructor_sem_posted) return 0; sock_info->constructor_sem_posted = 1; if (uatomic_read(&sem_count) <= 0) { return 0; } ret = uatomic_add_return(&sem_count, -1); if (ret == 0) { ret = sem_post(&constructor_wait); assert(!ret); } return 0; } /* * Only execute pending statedump after the constructor semaphore has * been posted by each listener thread. This means statedump will only * be performed after the "registration done" command is received from * each session daemon the application is connected to. * * This ensures we don't run into deadlock issues with the dynamic * loader mutex, which is held while the constructor is called and * waiting on the constructor semaphore. All operations requiring this * dynamic loader lock need to be postponed using this mechanism. */ static void handle_pending_statedump(struct sock_info *sock_info) { int ctor_passed = sock_info->constructor_sem_posted; if (ctor_passed && sock_info->statedump_pending) { sock_info->statedump_pending = 0; lttng_handle_pending_statedump(sock_info); } } static int handle_message(struct sock_info *sock_info, int sock, struct ustcomm_ust_msg *lum) { int ret = 0; const struct lttng_ust_objd_ops *ops; struct ustcomm_ust_reply lur; union ust_args args; ssize_t len; memset(&lur, 0, sizeof(lur)); if (ust_lock()) { ret = -LTTNG_UST_ERR_EXITING; goto end; } ops = objd_ops(lum->handle); if (!ops) { ret = -ENOENT; goto end; } switch (lum->cmd) { case LTTNG_UST_REGISTER_DONE: if (lum->handle == LTTNG_UST_ROOT_HANDLE) ret = handle_register_done(sock_info); else ret = -EINVAL; break; case LTTNG_UST_RELEASE: if (lum->handle == LTTNG_UST_ROOT_HANDLE) ret = -EPERM; else ret = lttng_ust_objd_unref(lum->handle, 1); break; case LTTNG_UST_FILTER: { /* Receive filter data */ struct lttng_ust_filter_bytecode_node *bytecode; if (lum->u.filter.data_size > FILTER_BYTECODE_MAX_LEN) { ERR("Filter data size is too large: %u bytes", lum->u.filter.data_size); ret = -EINVAL; goto error; } if (lum->u.filter.reloc_offset > lum->u.filter.data_size) { ERR("Filter reloc offset %u is not within data", lum->u.filter.reloc_offset); ret = -EINVAL; goto error; } bytecode = zmalloc(sizeof(*bytecode) + lum->u.filter.data_size); if (!bytecode) { ret = -ENOMEM; goto error; } len = ustcomm_recv_unix_sock(sock, bytecode->bc.data, lum->u.filter.data_size); switch (len) { case 0: /* orderly shutdown */ ret = 0; free(bytecode); goto error; default: if (len == lum->u.filter.data_size) { DBG("filter data received"); break; } else if (len < 0) { DBG("Receive failed from lttng-sessiond with errno %d", (int) -len); if (len == -ECONNRESET) { ERR("%s remote end closed connection", sock_info->name); ret = len; free(bytecode); goto error; } ret = len; free(bytecode); goto end; } else { DBG("incorrect filter data message size: %zd", len); ret = -EINVAL; free(bytecode); goto end; } } bytecode->bc.len = lum->u.filter.data_size; bytecode->bc.reloc_offset = lum->u.filter.reloc_offset; bytecode->bc.seqnum = lum->u.filter.seqnum; if (ops->cmd) { ret = ops->cmd(lum->handle, lum->cmd, (unsigned long) bytecode, &args, sock_info); if (ret) { free(bytecode); } /* don't free bytecode if everything went fine. */ } else { ret = -ENOSYS; free(bytecode); } break; } case LTTNG_UST_EXCLUSION: { /* Receive exclusion names */ struct lttng_ust_excluder_node *node; unsigned int count; count = lum->u.exclusion.count; if (count == 0) { /* There are no names to read */ ret = 0; goto error; } node = zmalloc(sizeof(*node) + count * LTTNG_UST_SYM_NAME_LEN); if (!node) { ret = -ENOMEM; goto error; } node->excluder.count = count; len = ustcomm_recv_unix_sock(sock, node->excluder.names, count * LTTNG_UST_SYM_NAME_LEN); switch (len) { case 0: /* orderly shutdown */ ret = 0; free(node); goto error; default: if (len == count * LTTNG_UST_SYM_NAME_LEN) { DBG("Exclusion data received"); break; } else if (len < 0) { DBG("Receive failed from lttng-sessiond with errno %d", (int) -len); if (len == -ECONNRESET) { ERR("%s remote end closed connection", sock_info->name); ret = len; free(node); goto error; } ret = len; free(node); goto end; } else { DBG("Incorrect exclusion data message size: %zd", len); ret = -EINVAL; free(node); goto end; } } if (ops->cmd) { ret = ops->cmd(lum->handle, lum->cmd, (unsigned long) node, &args, sock_info); if (ret) { free(node); } /* Don't free exclusion data if everything went fine. */ } else { ret = -ENOSYS; free(node); } break; } case LTTNG_UST_CHANNEL: { void *chan_data; int wakeup_fd; len = ustcomm_recv_channel_from_sessiond(sock, &chan_data, lum->u.channel.len, &wakeup_fd); switch (len) { case 0: /* orderly shutdown */ ret = 0; goto error; default: if (len == lum->u.channel.len) { DBG("channel data received"); break; } else if (len < 0) { DBG("Receive failed from lttng-sessiond with errno %d", (int) -len); if (len == -ECONNRESET) { ERR("%s remote end closed connection", sock_info->name); ret = len; goto error; } ret = len; goto end; } else { DBG("incorrect channel data message size: %zd", len); ret = -EINVAL; goto end; } } args.channel.chan_data = chan_data; args.channel.wakeup_fd = wakeup_fd; if (ops->cmd) ret = ops->cmd(lum->handle, lum->cmd, (unsigned long) &lum->u, &args, sock_info); else ret = -ENOSYS; break; } case LTTNG_UST_STREAM: { /* Receive shm_fd, wakeup_fd */ ret = ustcomm_recv_stream_from_sessiond(sock, &lum->u.stream.len, &args.stream.shm_fd, &args.stream.wakeup_fd); if (ret) { goto end; } if (ops->cmd) ret = ops->cmd(lum->handle, lum->cmd, (unsigned long) &lum->u, &args, sock_info); else ret = -ENOSYS; break; } default: if (ops->cmd) ret = ops->cmd(lum->handle, lum->cmd, (unsigned long) &lum->u, &args, sock_info); else ret = -ENOSYS; break; } end: lur.handle = lum->handle; lur.cmd = lum->cmd; lur.ret_val = ret; if (ret >= 0) { lur.ret_code = LTTNG_UST_OK; } else { /* * Use -LTTNG_UST_ERR as wildcard for UST internal * error that are not caused by the transport, except if * we already have a more precise error message to * report. */ if (ret > -LTTNG_UST_ERR) { /* Translate code to UST error. */ switch (ret) { case -EEXIST: lur.ret_code = -LTTNG_UST_ERR_EXIST; break; case -EINVAL: lur.ret_code = -LTTNG_UST_ERR_INVAL; break; case -ENOENT: lur.ret_code = -LTTNG_UST_ERR_NOENT; break; case -EPERM: lur.ret_code = -LTTNG_UST_ERR_PERM; break; case -ENOSYS: lur.ret_code = -LTTNG_UST_ERR_NOSYS; break; default: lur.ret_code = -LTTNG_UST_ERR; break; } } else { lur.ret_code = ret; } } if (ret >= 0) { switch (lum->cmd) { case LTTNG_UST_TRACER_VERSION: lur.u.version = lum->u.version; break; case LTTNG_UST_TRACEPOINT_LIST_GET: memcpy(&lur.u.tracepoint, &lum->u.tracepoint, sizeof(lur.u.tracepoint)); break; } } DBG("Return value: %d", lur.ret_val); ret = send_reply(sock, &lur); if (ret < 0) { DBG("error sending reply"); goto error; } /* * LTTNG_UST_TRACEPOINT_FIELD_LIST_GET needs to send the field * after the reply. */ if (lur.ret_code == LTTNG_UST_OK) { switch (lum->cmd) { case LTTNG_UST_TRACEPOINT_FIELD_LIST_GET: len = ustcomm_send_unix_sock(sock, &args.field_list.entry, sizeof(args.field_list.entry)); if (len < 0) { ret = len; goto error; } if (len != sizeof(args.field_list.entry)) { ret = -EINVAL; goto error; } } } error: ust_unlock(); /* * Performed delayed statedump operations outside of the UST * lock. We need to take the dynamic loader lock before we take * the UST lock internally within handle_pending_statedump(). */ handle_pending_statedump(sock_info); return ret; } static void cleanup_sock_info(struct sock_info *sock_info, int exiting) { int ret; if (sock_info->root_handle != -1) { ret = lttng_ust_objd_unref(sock_info->root_handle, 1); if (ret) { ERR("Error unref root handle"); } sock_info->root_handle = -1; } sock_info->constructor_sem_posted = 0; /* * wait_shm_mmap, socket and notify socket are used by listener * threads outside of the ust lock, so we cannot tear them down * ourselves, because we cannot join on these threads. Leave * responsibility of cleaning up these resources to the OS * process exit. */ if (exiting) return; if (sock_info->socket != -1) { ret = ustcomm_close_unix_sock(sock_info->socket); if (ret) { ERR("Error closing ust cmd socket"); } sock_info->socket = -1; } if (sock_info->notify_socket != -1) { ret = ustcomm_close_unix_sock(sock_info->notify_socket); if (ret) { ERR("Error closing ust notify socket"); } sock_info->notify_socket = -1; } if (sock_info->wait_shm_mmap) { long page_size; page_size = sysconf(_SC_PAGE_SIZE); if (page_size > 0) { ret = munmap(sock_info->wait_shm_mmap, page_size); if (ret) { ERR("Error unmapping wait shm"); } } sock_info->wait_shm_mmap = NULL; } } /* * Using fork to set umask in the child process (not multi-thread safe). * We deal with the shm_open vs ftruncate race (happening when the * sessiond owns the shm and does not let everybody modify it, to ensure * safety against shm_unlink) by simply letting the mmap fail and * retrying after a few seconds. * For global shm, everybody has rw access to it until the sessiond * starts. */ static int get_wait_shm(struct sock_info *sock_info, size_t mmap_size) { int wait_shm_fd, ret; pid_t pid; /* * Try to open read-only. */ wait_shm_fd = shm_open(sock_info->wait_shm_path, O_RDONLY, 0); if (wait_shm_fd >= 0) { int32_t tmp_read; ssize_t len; size_t bytes_read = 0; /* * Try to read the fd. If unable to do so, try opening * it in write mode. */ do { len = read(wait_shm_fd, &((char *) &tmp_read)[bytes_read], sizeof(tmp_read) - bytes_read); if (len > 0) { bytes_read += len; } } while ((len < 0 && errno == EINTR) || (len > 0 && bytes_read < sizeof(tmp_read))); if (bytes_read != sizeof(tmp_read)) { ret = close(wait_shm_fd); if (ret) { ERR("close wait_shm_fd"); } goto open_write; } goto end; } else if (wait_shm_fd < 0 && errno != ENOENT) { /* * Real-only open did not work, and it's not because the * entry was not present. It's a failure that prohibits * using shm. */ ERR("Error opening shm %s", sock_info->wait_shm_path); goto end; } open_write: /* * If the open failed because the file did not exist, or because * the file was not truncated yet, try creating it ourself. */ URCU_TLS(lttng_ust_nest_count)++; pid = fork(); URCU_TLS(lttng_ust_nest_count)--; if (pid > 0) { int status; /* * Parent: wait for child to return, in which case the * shared memory map will have been created. */ pid = wait(&status); if (pid < 0 || !WIFEXITED(status) || WEXITSTATUS(status) != 0) { wait_shm_fd = -1; goto end; } /* * Try to open read-only again after creation. */ wait_shm_fd = shm_open(sock_info->wait_shm_path, O_RDONLY, 0); if (wait_shm_fd < 0) { /* * Real-only open did not work. It's a failure * that prohibits using shm. */ ERR("Error opening shm %s", sock_info->wait_shm_path); goto end; } goto end; } else if (pid == 0) { int create_mode; /* Child */ create_mode = S_IRUSR | S_IWUSR | S_IRGRP; if (sock_info->global) create_mode |= S_IROTH | S_IWGRP | S_IWOTH; /* * We're alone in a child process, so we can modify the * process-wide umask. */ umask(~create_mode); /* * Try creating shm (or get rw access). * We don't do an exclusive open, because we allow other * processes to create+ftruncate it concurrently. */ wait_shm_fd = shm_open(sock_info->wait_shm_path, O_RDWR | O_CREAT, create_mode); if (wait_shm_fd >= 0) { ret = ftruncate(wait_shm_fd, mmap_size); if (ret) { PERROR("ftruncate"); _exit(EXIT_FAILURE); } _exit(EXIT_SUCCESS); } /* * For local shm, we need to have rw access to accept * opening it: this means the local sessiond will be * able to wake us up. For global shm, we open it even * if rw access is not granted, because the root.root * sessiond will be able to override all rights and wake * us up. */ if (!sock_info->global && errno != EACCES) { ERR("Error opening shm %s", sock_info->wait_shm_path); _exit(EXIT_FAILURE); } /* * The shm exists, but we cannot open it RW. Report * success. */ _exit(EXIT_SUCCESS); } else { return -1; } end: if (wait_shm_fd >= 0 && !sock_info->global) { struct stat statbuf; /* * Ensure that our user is the owner of the shm file for * local shm. If we do not own the file, it means our * sessiond will not have access to wake us up (there is * probably a rogue process trying to fake our * sessiond). Fallback to polling method in this case. */ ret = fstat(wait_shm_fd, &statbuf); if (ret) { PERROR("fstat"); goto error_close; } if (statbuf.st_uid != getuid()) goto error_close; } return wait_shm_fd; error_close: ret = close(wait_shm_fd); if (ret) { PERROR("Error closing fd"); } return -1; } static char *get_map_shm(struct sock_info *sock_info) { long page_size; int wait_shm_fd, ret; char *wait_shm_mmap; page_size = sysconf(_SC_PAGE_SIZE); if (page_size < 0) { goto error; } wait_shm_fd = get_wait_shm(sock_info, page_size); if (wait_shm_fd < 0) { goto error; } wait_shm_mmap = mmap(NULL, page_size, PROT_READ, MAP_SHARED, wait_shm_fd, 0); /* close shm fd immediately after taking the mmap reference */ ret = close(wait_shm_fd); if (ret) { PERROR("Error closing fd"); } if (wait_shm_mmap == MAP_FAILED) { DBG("mmap error (can be caused by race with sessiond). Fallback to poll mode."); goto error; } return wait_shm_mmap; error: return NULL; } static void wait_for_sessiond(struct sock_info *sock_info) { int ret; if (ust_lock()) { goto quit; } if (wait_poll_fallback) { goto error; } if (!sock_info->wait_shm_mmap) { sock_info->wait_shm_mmap = get_map_shm(sock_info); if (!sock_info->wait_shm_mmap) goto error; } ust_unlock(); DBG("Waiting for %s apps sessiond", sock_info->name); /* Wait for futex wakeup */ if (uatomic_read((int32_t *) sock_info->wait_shm_mmap) == 0) { ret = futex_async((int32_t *) sock_info->wait_shm_mmap, FUTEX_WAIT, 0, NULL, NULL, 0); if (ret < 0) { if (errno == EFAULT) { wait_poll_fallback = 1; DBG( "Linux kernels 2.6.33 to 3.0 (with the exception of stable versions) " "do not support FUTEX_WAKE on read-only memory mappings correctly. " "Please upgrade your kernel " "(fix is commit 9ea71503a8ed9184d2d0b8ccc4d269d05f7940ae in Linux kernel " "mainline). LTTng-UST will use polling mode fallback."); if (ust_debug()) PERROR("futex"); } } } return; quit: ust_unlock(); return; error: ust_unlock(); return; } /* * This thread does not allocate any resource, except within * handle_message, within mutex protection. This mutex protects against * fork and exit. * The other moment it allocates resources is at socket connection, which * is also protected by the mutex. */ static void *ust_listener_thread(void *arg) { struct sock_info *sock_info = arg; int sock, ret, prev_connect_failed = 0, has_waited = 0; long timeout; /* Restart trying to connect to the session daemon */ restart: if (prev_connect_failed) { /* Wait for sessiond availability with pipe */ wait_for_sessiond(sock_info); if (has_waited) { has_waited = 0; /* * Sleep for 5 seconds before retrying after a * sequence of failure / wait / failure. This * deals with a killed or broken session daemon. */ sleep(5); } has_waited = 1; prev_connect_failed = 0; } if (sock_info->socket != -1) { ret = ustcomm_close_unix_sock(sock_info->socket); if (ret) { ERR("Error closing %s ust cmd socket", sock_info->name); } sock_info->socket = -1; } if (sock_info->notify_socket != -1) { ret = ustcomm_close_unix_sock(sock_info->notify_socket); if (ret) { ERR("Error closing %s ust notify socket", sock_info->name); } sock_info->notify_socket = -1; } /* * Register. We need to perform both connect and sending * registration message before doing the next connect otherwise * we may reach unix socket connect queue max limits and block * on the 2nd connect while the session daemon is awaiting the * first connect registration message. */ /* Connect cmd socket */ ret = ustcomm_connect_unix_sock(sock_info->sock_path); if (ret < 0) { DBG("Info: sessiond not accepting connections to %s apps socket", sock_info->name); prev_connect_failed = 1; if (ust_lock()) { goto quit; } /* * If we cannot find the sessiond daemon, don't delay * constructor execution. */ ret = handle_register_done(sock_info); assert(!ret); ust_unlock(); goto restart; } sock_info->socket = ret; if (ust_lock()) { goto quit; } /* * Create only one root handle per listener thread for the whole * process lifetime, so we ensure we get ID which is statically * assigned to the root handle. */ if (sock_info->root_handle == -1) { ret = lttng_abi_create_root_handle(); if (ret < 0) { ERR("Error creating root handle"); goto quit; } sock_info->root_handle = ret; } ret = register_to_sessiond(sock_info->socket, USTCTL_SOCKET_CMD); if (ret < 0) { ERR("Error registering to %s ust cmd socket", sock_info->name); prev_connect_failed = 1; /* * If we cannot register to the sessiond daemon, don't * delay constructor execution. */ ret = handle_register_done(sock_info); assert(!ret); ust_unlock(); goto restart; } ust_unlock(); /* Connect notify socket */ ret = ustcomm_connect_unix_sock(sock_info->sock_path); if (ret < 0) { DBG("Info: sessiond not accepting connections to %s apps socket", sock_info->name); prev_connect_failed = 1; if (ust_lock()) { goto quit; } /* * If we cannot find the sessiond daemon, don't delay * constructor execution. */ ret = handle_register_done(sock_info); assert(!ret); ust_unlock(); goto restart; } sock_info->notify_socket = ret; timeout = get_notify_sock_timeout(); if (timeout >= 0) { /* * Give at least 10ms to sessiond to reply to * notifications. */ if (timeout < 10) timeout = 10; ret = ustcomm_setsockopt_rcv_timeout(sock_info->notify_socket, timeout); if (ret < 0) { WARN("Error setting socket receive timeout"); } ret = ustcomm_setsockopt_snd_timeout(sock_info->notify_socket, timeout); if (ret < 0) { WARN("Error setting socket send timeout"); } } else if (timeout < -1) { WARN("Unsupported timeout value %ld", timeout); } if (ust_lock()) { goto quit; } ret = register_to_sessiond(sock_info->notify_socket, USTCTL_SOCKET_NOTIFY); if (ret < 0) { ERR("Error registering to %s ust notify socket", sock_info->name); prev_connect_failed = 1; /* * If we cannot register to the sessiond daemon, don't * delay constructor execution. */ ret = handle_register_done(sock_info); assert(!ret); ust_unlock(); goto restart; } sock = sock_info->socket; ust_unlock(); for (;;) { ssize_t len; struct ustcomm_ust_msg lum; len = ustcomm_recv_unix_sock(sock, &lum, sizeof(lum)); switch (len) { case 0: /* orderly shutdown */ DBG("%s lttng-sessiond has performed an orderly shutdown", sock_info->name); if (ust_lock()) { goto quit; } /* * Either sessiond has shutdown or refused us by closing the socket. * In either case, we don't want to delay construction execution, * and we need to wait before retry. */ prev_connect_failed = 1; /* * If we cannot register to the sessiond daemon, don't * delay constructor execution. */ ret = handle_register_done(sock_info); assert(!ret); ust_unlock(); goto end; case sizeof(lum): print_cmd(lum.cmd, lum.handle); ret = handle_message(sock_info, sock, &lum); if (ret) { ERR("Error handling message for %s socket", sock_info->name); } continue; default: if (len < 0) { DBG("Receive failed from lttng-sessiond with errno %d", (int) -len); } else { DBG("incorrect message size (%s socket): %zd", sock_info->name, len); } if (len == -ECONNRESET) { DBG("%s remote end closed connection", sock_info->name); goto end; } goto end; } } end: if (ust_lock()) { goto quit; } /* Cleanup socket handles before trying to reconnect */ lttng_ust_objd_table_owner_cleanup(sock_info); ust_unlock(); goto restart; /* try to reconnect */ quit: ust_unlock(); pthread_mutex_lock(&ust_exit_mutex); sock_info->thread_active = 0; pthread_mutex_unlock(&ust_exit_mutex); return NULL; } /* * Weak symbol to call when the ust malloc wrapper is not loaded. */ __attribute__((weak)) void lttng_ust_malloc_wrapper_init(void) { } /* * sessiond monitoring thread: monitor presence of global and per-user * sessiond by polling the application common named pipe. */ void __attribute__((constructor)) lttng_ust_init(void) { struct timespec constructor_timeout; sigset_t sig_all_blocked, orig_parent_mask; pthread_attr_t thread_attr; int timeout_mode; int ret; if (uatomic_xchg(&initialized, 1) == 1) return; /* * Fixup interdependency between TLS fixup mutex (which happens * to be the dynamic linker mutex) and ust_lock, taken within * the ust lock. */ lttng_fixup_ringbuffer_tls(); lttng_fixup_vtid_tls(); lttng_fixup_nest_count_tls(); lttng_fixup_procname_tls(); /* * We want precise control over the order in which we construct * our sub-libraries vs starting to receive commands from * sessiond (otherwise leading to errors when trying to create * sessiond before the init functions are completed). */ init_usterr(); init_tracepoint(); lttng_ust_baddr_statedump_init(); lttng_ring_buffer_metadata_client_init(); lttng_ring_buffer_client_overwrite_init(); lttng_ring_buffer_client_overwrite_rt_init(); lttng_ring_buffer_client_discard_init(); lttng_ring_buffer_client_discard_rt_init(); lttng_context_init(); /* * Invoke ust malloc wrapper init before starting other threads. */ lttng_ust_malloc_wrapper_init(); timeout_mode = get_constructor_timeout(&constructor_timeout); ret = sem_init(&constructor_wait, 0, 0); assert(!ret); ret = setup_local_apps(); if (ret) { DBG("local apps setup returned %d", ret); } /* A new thread created by pthread_create inherits the signal mask * from the parent. To avoid any signal being received by the * listener thread, we block all signals temporarily in the parent, * while we create the listener thread. */ sigfillset(&sig_all_blocked); ret = pthread_sigmask(SIG_SETMASK, &sig_all_blocked, &orig_parent_mask); if (ret) { ERR("pthread_sigmask: %s", strerror(ret)); } ret = pthread_attr_init(&thread_attr); if (ret) { ERR("pthread_attr_init: %s", strerror(ret)); } ret = pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_DETACHED); if (ret) { ERR("pthread_attr_setdetachstate: %s", strerror(ret)); } pthread_mutex_lock(&ust_exit_mutex); ret = pthread_create(&global_apps.ust_listener, &thread_attr, ust_listener_thread, &global_apps); if (ret) { ERR("pthread_create global: %s", strerror(ret)); } global_apps.thread_active = 1; pthread_mutex_unlock(&ust_exit_mutex); if (local_apps.allowed) { pthread_mutex_lock(&ust_exit_mutex); ret = pthread_create(&local_apps.ust_listener, &thread_attr, ust_listener_thread, &local_apps); if (ret) { ERR("pthread_create local: %s", strerror(ret)); } local_apps.thread_active = 1; pthread_mutex_unlock(&ust_exit_mutex); } else { handle_register_done(&local_apps); } ret = pthread_attr_destroy(&thread_attr); if (ret) { ERR("pthread_attr_destroy: %s", strerror(ret)); } /* Restore original signal mask in parent */ ret = pthread_sigmask(SIG_SETMASK, &orig_parent_mask, NULL); if (ret) { ERR("pthread_sigmask: %s", strerror(ret)); } switch (timeout_mode) { case 1: /* timeout wait */ do { ret = sem_timedwait(&constructor_wait, &constructor_timeout); } while (ret < 0 && errno == EINTR); if (ret < 0 && errno == ETIMEDOUT) { ERR("Timed out waiting for lttng-sessiond"); } else { assert(!ret); } break; case -1:/* wait forever */ do { ret = sem_wait(&constructor_wait); } while (ret < 0 && errno == EINTR); assert(!ret); break; case 0: /* no timeout */ break; } } static void lttng_ust_cleanup(int exiting) { cleanup_sock_info(&global_apps, exiting); if (local_apps.allowed) { cleanup_sock_info(&local_apps, exiting); } /* * The teardown in this function all affect data structures * accessed under the UST lock by the listener thread. This * lock, along with the lttng_ust_comm_should_quit flag, ensure * that none of these threads are accessing this data at this * point. */ lttng_ust_abi_exit(); lttng_ust_events_exit(); lttng_context_exit(); lttng_ring_buffer_client_discard_rt_exit(); lttng_ring_buffer_client_discard_exit(); lttng_ring_buffer_client_overwrite_rt_exit(); lttng_ring_buffer_client_overwrite_exit(); lttng_ring_buffer_metadata_client_exit(); lttng_ust_baddr_statedump_destroy(); exit_tracepoint(); if (!exiting) { /* Reinitialize values for fork */ sem_count = 2; lttng_ust_comm_should_quit = 0; initialized = 0; } } void __attribute__((destructor)) lttng_ust_exit(void) { int ret; /* * Using pthread_cancel here because: * A) we don't want to hang application teardown. * B) the thread is not allocating any resource. */ /* * Require the communication thread to quit. Synchronize with * mutexes to ensure it is not in a mutex critical section when * pthread_cancel is later called. */ ust_lock_nocheck(); lttng_ust_comm_should_quit = 1; ust_unlock(); pthread_mutex_lock(&ust_exit_mutex); /* cancel threads */ if (global_apps.thread_active) { ret = pthread_cancel(global_apps.ust_listener); if (ret) { ERR("Error cancelling global ust listener thread: %s", strerror(ret)); } else { global_apps.thread_active = 0; } } if (local_apps.thread_active) { ret = pthread_cancel(local_apps.ust_listener); if (ret) { ERR("Error cancelling local ust listener thread: %s", strerror(ret)); } else { local_apps.thread_active = 0; } } pthread_mutex_unlock(&ust_exit_mutex); /* * Do NOT join threads: use of sys_futex makes it impossible to * join the threads without using async-cancel, but async-cancel * is delivered by a signal, which could hit the target thread * anywhere in its code path, including while the ust_lock() is * held, causing a deadlock for the other thread. Let the OS * cleanup the threads if there are stalled in a syscall. */ lttng_ust_cleanup(1); } /* * We exclude the worker threads across fork and clone (except * CLONE_VM), because these system calls only keep the forking thread * running in the child. Therefore, we don't want to call fork or clone * in the middle of an tracepoint or ust tracing state modification. * Holding this mutex protects these structures across fork and clone. */ void ust_before_fork(sigset_t *save_sigset) { /* * Disable signals. This is to avoid that the child intervenes * before it is properly setup for tracing. It is safer to * disable all signals, because then we know we are not breaking * anything by restoring the original mask. */ sigset_t all_sigs; int ret; if (URCU_TLS(lttng_ust_nest_count)) return; /* Disable signals */ sigfillset(&all_sigs); ret = sigprocmask(SIG_BLOCK, &all_sigs, save_sigset); if (ret == -1) { PERROR("sigprocmask"); } ust_lock_nocheck(); rcu_bp_before_fork(); } static void ust_after_fork_common(sigset_t *restore_sigset) { int ret; DBG("process %d", getpid()); ust_unlock(); /* Restore signals */ ret = sigprocmask(SIG_SETMASK, restore_sigset, NULL); if (ret == -1) { PERROR("sigprocmask"); } } void ust_after_fork_parent(sigset_t *restore_sigset) { if (URCU_TLS(lttng_ust_nest_count)) return; DBG("process %d", getpid()); rcu_bp_after_fork_parent(); /* Release mutexes and reenable signals */ ust_after_fork_common(restore_sigset); } /* * After fork, in the child, we need to cleanup all the leftover state, * except the worker thread which already magically disappeared thanks * to the weird Linux fork semantics. After tyding up, we call * lttng_ust_init() again to start over as a new PID. * * This is meant for forks() that have tracing in the child between the * fork and following exec call (if there is any). */ void ust_after_fork_child(sigset_t *restore_sigset) { if (URCU_TLS(lttng_ust_nest_count)) return; DBG("process %d", getpid()); /* Release urcu mutexes */ rcu_bp_after_fork_child(); lttng_ust_cleanup(0); lttng_context_vtid_reset(); /* Release mutexes and reenable signals */ ust_after_fork_common(restore_sigset); lttng_ust_init(); } void lttng_ust_sockinfo_session_enabled(void *owner) { struct sock_info *sock_info = owner; sock_info->statedump_pending = 1; } lttng-ust-2.4.0/liblttng-ust/lttng-ring-buffer-client-overwrite.c0000644000175000017500000000261112275157353022041 00000000000000/* * lttng-ring-buffer-client-overwrite.c * * LTTng lib ring buffer client (overwrite mode). * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include "lttng-tracer.h" #define RING_BUFFER_MODE_TEMPLATE RING_BUFFER_OVERWRITE #define RING_BUFFER_MODE_TEMPLATE_STRING "overwrite" #define RING_BUFFER_MODE_TEMPLATE_INIT \ lttng_ring_buffer_client_overwrite_init #define RING_BUFFER_MODE_TEMPLATE_EXIT \ lttng_ring_buffer_client_overwrite_exit #define LTTNG_CLIENT_TYPE LTTNG_CLIENT_OVERWRITE #define LTTNG_CLIENT_CALLBACKS lttng_client_callbacks_overwrite #define LTTNG_CLIENT_WAKEUP RING_BUFFER_WAKEUP_BY_WRITER #include "lttng-ring-buffer-client.h" lttng-ust-2.4.0/liblttng-ust/lttng-filter-specialize.c0000644000175000017500000002730112275157353017751 00000000000000/* * lttng-filter-specialize.c * * LTTng UST filter code specializer. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "lttng-filter.h" int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) { void *pc, *next_pc, *start_pc; int ret = -EINVAL; struct vstack _stack; struct vstack *stack = &_stack; vstack_init(stack); start_pc = &bytecode->data[0]; for (pc = next_pc = start_pc; pc - start_pc < bytecode->len; pc = next_pc) { switch (*(filter_opcode_t *) pc) { case FILTER_OP_UNKNOWN: default: ERR("unknown bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; case FILTER_OP_RETURN: ret = 0; goto end; /* binary */ case FILTER_OP_MUL: case FILTER_OP_DIV: case FILTER_OP_MOD: case FILTER_OP_PLUS: case FILTER_OP_MINUS: case FILTER_OP_RSHIFT: case FILTER_OP_LSHIFT: case FILTER_OP_BIN_AND: case FILTER_OP_BIN_OR: case FILTER_OP_BIN_XOR: ERR("unsupported bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; case FILTER_OP_EQ: { struct binary_op *insn = (struct binary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: insn->op = FILTER_OP_EQ_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_EQ_S64; else insn->op = FILTER_OP_EQ_DOUBLE_S64; break; case REG_DOUBLE: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_EQ_S64_DOUBLE; else insn->op = FILTER_OP_EQ_DOUBLE; break; } /* Pop 2, push 1 */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } case FILTER_OP_NE: { struct binary_op *insn = (struct binary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: insn->op = FILTER_OP_NE_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_NE_S64; else insn->op = FILTER_OP_NE_DOUBLE_S64; break; case REG_DOUBLE: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_NE_S64_DOUBLE; else insn->op = FILTER_OP_NE_DOUBLE; break; } /* Pop 2, push 1 */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } case FILTER_OP_GT: { struct binary_op *insn = (struct binary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: insn->op = FILTER_OP_GT_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_GT_S64; else insn->op = FILTER_OP_GT_DOUBLE_S64; break; case REG_DOUBLE: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_GT_S64_DOUBLE; else insn->op = FILTER_OP_GT_DOUBLE; break; } /* Pop 2, push 1 */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } case FILTER_OP_LT: { struct binary_op *insn = (struct binary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: insn->op = FILTER_OP_LT_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_LT_S64; else insn->op = FILTER_OP_LT_DOUBLE_S64; break; case REG_DOUBLE: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_LT_S64_DOUBLE; else insn->op = FILTER_OP_LT_DOUBLE; break; } /* Pop 2, push 1 */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } case FILTER_OP_GE: { struct binary_op *insn = (struct binary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: insn->op = FILTER_OP_GE_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_GE_S64; else insn->op = FILTER_OP_GE_DOUBLE_S64; break; case REG_DOUBLE: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_GE_S64_DOUBLE; else insn->op = FILTER_OP_GE_DOUBLE; break; } /* Pop 2, push 1 */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } case FILTER_OP_LE: { struct binary_op *insn = (struct binary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: insn->op = FILTER_OP_LE_STRING; break; case REG_S64: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_LE_S64; else insn->op = FILTER_OP_LE_DOUBLE_S64; break; case REG_DOUBLE: if (vstack_bx(stack)->type == REG_S64) insn->op = FILTER_OP_LE_S64_DOUBLE; else insn->op = FILTER_OP_LE_DOUBLE; break; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } case FILTER_OP_EQ_STRING: case FILTER_OP_NE_STRING: case FILTER_OP_GT_STRING: case FILTER_OP_LT_STRING: case FILTER_OP_GE_STRING: case FILTER_OP_LE_STRING: case FILTER_OP_EQ_S64: case FILTER_OP_NE_S64: case FILTER_OP_GT_S64: case FILTER_OP_LT_S64: case FILTER_OP_GE_S64: case FILTER_OP_LE_S64: case FILTER_OP_EQ_DOUBLE: case FILTER_OP_NE_DOUBLE: case FILTER_OP_GT_DOUBLE: case FILTER_OP_LT_DOUBLE: case FILTER_OP_GE_DOUBLE: case FILTER_OP_LE_DOUBLE: case FILTER_OP_EQ_DOUBLE_S64: case FILTER_OP_NE_DOUBLE_S64: case FILTER_OP_GT_DOUBLE_S64: case FILTER_OP_LT_DOUBLE_S64: case FILTER_OP_GE_DOUBLE_S64: case FILTER_OP_LE_DOUBLE_S64: case FILTER_OP_EQ_S64_DOUBLE: case FILTER_OP_NE_S64_DOUBLE: case FILTER_OP_GT_S64_DOUBLE: case FILTER_OP_LT_S64_DOUBLE: case FILTER_OP_GE_S64_DOUBLE: case FILTER_OP_LE_S64_DOUBLE: { /* Pop 2, push 1 */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } /* unary */ case FILTER_OP_UNARY_PLUS: { struct unary_op *insn = (struct unary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_S64: insn->op = FILTER_OP_UNARY_PLUS_S64; break; case REG_DOUBLE: insn->op = FILTER_OP_UNARY_PLUS_DOUBLE; break; } /* Pop 1, push 1 */ next_pc += sizeof(struct unary_op); break; } case FILTER_OP_UNARY_MINUS: { struct unary_op *insn = (struct unary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_S64: insn->op = FILTER_OP_UNARY_MINUS_S64; break; case REG_DOUBLE: insn->op = FILTER_OP_UNARY_MINUS_DOUBLE; break; } /* Pop 1, push 1 */ next_pc += sizeof(struct unary_op); break; } case FILTER_OP_UNARY_NOT: { struct unary_op *insn = (struct unary_op *) pc; switch(vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_S64: insn->op = FILTER_OP_UNARY_NOT_S64; break; case REG_DOUBLE: insn->op = FILTER_OP_UNARY_NOT_DOUBLE; break; } /* Pop 1, push 1 */ next_pc += sizeof(struct unary_op); break; } case FILTER_OP_UNARY_PLUS_S64: case FILTER_OP_UNARY_MINUS_S64: case FILTER_OP_UNARY_NOT_S64: case FILTER_OP_UNARY_PLUS_DOUBLE: case FILTER_OP_UNARY_MINUS_DOUBLE: case FILTER_OP_UNARY_NOT_DOUBLE: { /* Pop 1, push 1 */ next_pc += sizeof(struct unary_op); break; } /* logical */ case FILTER_OP_AND: case FILTER_OP_OR: { /* Continue to next instruction */ /* Pop 1 when jump not taken */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } next_pc += sizeof(struct logical_op); break; } /* load field ref */ case FILTER_OP_LOAD_FIELD_REF: { ERR("Unknown field ref type\n"); ret = -EINVAL; goto end; } /* get context ref */ case FILTER_OP_GET_CONTEXT_REF: { ERR("Unknown get context ref type\n"); ret = -EINVAL; goto end; } case FILTER_OP_LOAD_FIELD_REF_STRING: case FILTER_OP_LOAD_FIELD_REF_SEQUENCE: case FILTER_OP_GET_CONTEXT_REF_STRING: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_STRING; next_pc += sizeof(struct load_op) + sizeof(struct field_ref); break; } case FILTER_OP_LOAD_FIELD_REF_S64: case FILTER_OP_GET_CONTEXT_REF_S64: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct load_op) + sizeof(struct field_ref); break; } case FILTER_OP_LOAD_FIELD_REF_DOUBLE: case FILTER_OP_GET_CONTEXT_REF_DOUBLE: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_DOUBLE; next_pc += sizeof(struct load_op) + sizeof(struct field_ref); break; } /* load from immediate operand */ case FILTER_OP_LOAD_STRING: { struct load_op *insn = (struct load_op *) pc; if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_STRING; next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; break; } case FILTER_OP_LOAD_S64: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct load_op) + sizeof(struct literal_numeric); break; } case FILTER_OP_LOAD_DOUBLE: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_DOUBLE; next_pc += sizeof(struct load_op) + sizeof(struct literal_double); break; } /* cast */ case FILTER_OP_CAST_TO_S64: { struct cast_op *insn = (struct cast_op *) pc; switch (vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: ERR("Cast op can only be applied to numeric or floating point registers\n"); ret = -EINVAL; goto end; case REG_S64: insn->op = FILTER_OP_CAST_NOP; break; case REG_DOUBLE: insn->op = FILTER_OP_CAST_DOUBLE_TO_S64; break; } /* Pop 1, push 1 */ vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct cast_op); break; } case FILTER_OP_CAST_DOUBLE_TO_S64: { /* Pop 1, push 1 */ vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct cast_op); break; } case FILTER_OP_CAST_NOP: { next_pc += sizeof(struct cast_op); break; } } } end: return ret; } lttng-ust-2.4.0/liblttng-ust/lttng-ust-abi.c0000644000175000017500000005656512304151532015702 00000000000000/* * lttng-ust-abi.c * * LTTng UST ABI * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * * Mimic system calls for: * - session creation, returns an object descriptor or failure. * - channel creation, returns an object descriptor or failure. * - Operates on a session object descriptor * - Takes all channel options as parameters. * - stream get, returns an object descriptor or failure. * - Operates on a channel object descriptor. * - stream notifier get, returns an object descriptor or failure. * - Operates on a channel object descriptor. * - event creation, returns an object descriptor or failure. * - Operates on a channel object descriptor * - Takes an event name as parameter * - Takes an instrumentation source as parameter * - e.g. tracepoints, dynamic_probes... * - Takes instrumentation source specific arguments. */ #include #include #include #include #include #include #include #include "tracepoint-internal.h" #include #include #include "lttng-tracer.h" #include "../libringbuffer/shm.h" #include "../libringbuffer/frontend_types.h" #define OBJ_NAME_LEN 16 static int lttng_ust_abi_close_in_progress; static int lttng_abi_tracepoint_list(void *owner); static int lttng_abi_tracepoint_field_list(void *owner); /* * Object descriptor table. Should be protected from concurrent access * by the caller. */ struct lttng_ust_obj { union { struct { void *private_data; const struct lttng_ust_objd_ops *ops; int f_count; int owner_ref; /* has ref from owner */ void *owner; char name[OBJ_NAME_LEN]; } s; int freelist_next; /* offset freelist. end is -1. */ } u; }; struct lttng_ust_objd_table { struct lttng_ust_obj *array; unsigned int len, allocated_len; int freelist_head; /* offset freelist head. end is -1 */ }; static struct lttng_ust_objd_table objd_table = { .freelist_head = -1, }; static int objd_alloc(void *private_data, const struct lttng_ust_objd_ops *ops, void *owner, const char *name) { struct lttng_ust_obj *obj; if (objd_table.freelist_head != -1) { obj = &objd_table.array[objd_table.freelist_head]; objd_table.freelist_head = obj->u.freelist_next; goto end; } if (objd_table.len >= objd_table.allocated_len) { unsigned int new_allocated_len, old_allocated_len; struct lttng_ust_obj *new_table, *old_table; old_allocated_len = objd_table.allocated_len; old_table = objd_table.array; if (!old_allocated_len) new_allocated_len = 1; else new_allocated_len = old_allocated_len << 1; new_table = zmalloc(sizeof(struct lttng_ust_obj) * new_allocated_len); if (!new_table) return -ENOMEM; memcpy(new_table, old_table, sizeof(struct lttng_ust_obj) * old_allocated_len); free(old_table); objd_table.array = new_table; objd_table.allocated_len = new_allocated_len; } obj = &objd_table.array[objd_table.len]; objd_table.len++; end: obj->u.s.private_data = private_data; obj->u.s.ops = ops; obj->u.s.f_count = 2; /* count == 1 : object is allocated */ /* count == 2 : allocated + hold ref */ obj->u.s.owner_ref = 1; /* One owner reference */ obj->u.s.owner = owner; strncpy(obj->u.s.name, name, OBJ_NAME_LEN); obj->u.s.name[OBJ_NAME_LEN - 1] = '\0'; return obj - objd_table.array; } static struct lttng_ust_obj *_objd_get(int id) { if (id >= objd_table.len) return NULL; if (!objd_table.array[id].u.s.f_count) return NULL; return &objd_table.array[id]; } static void *objd_private(int id) { struct lttng_ust_obj *obj = _objd_get(id); assert(obj); return obj->u.s.private_data; } static void objd_set_private(int id, void *private_data) { struct lttng_ust_obj *obj = _objd_get(id); assert(obj); obj->u.s.private_data = private_data; } const struct lttng_ust_objd_ops *objd_ops(int id) { struct lttng_ust_obj *obj = _objd_get(id); if (!obj) return NULL; return obj->u.s.ops; } static void objd_free(int id) { struct lttng_ust_obj *obj = _objd_get(id); assert(obj); obj->u.freelist_next = objd_table.freelist_head; objd_table.freelist_head = obj - objd_table.array; assert(obj->u.s.f_count == 1); obj->u.s.f_count = 0; /* deallocated */ } static void objd_ref(int id) { struct lttng_ust_obj *obj = _objd_get(id); assert(obj != NULL); obj->u.s.f_count++; } int lttng_ust_objd_unref(int id, int is_owner) { struct lttng_ust_obj *obj = _objd_get(id); if (!obj) return -EINVAL; if (obj->u.s.f_count == 1) { ERR("Reference counting error\n"); return -EINVAL; } if (is_owner) { if (!obj->u.s.owner_ref) { ERR("Error decrementing owner reference"); return -EINVAL; } obj->u.s.owner_ref--; } if ((--obj->u.s.f_count) == 1) { const struct lttng_ust_objd_ops *ops = objd_ops(id); if (ops->release) ops->release(id); objd_free(id); } return 0; } static void objd_table_destroy(void) { int i; for (i = 0; i < objd_table.allocated_len; i++) { struct lttng_ust_obj *obj; obj = _objd_get(i); if (!obj) continue; if (!obj->u.s.owner_ref) continue; /* only unref owner ref. */ (void) lttng_ust_objd_unref(i, 1); } free(objd_table.array); objd_table.array = NULL; objd_table.len = 0; objd_table.allocated_len = 0; objd_table.freelist_head = -1; } const char *lttng_ust_obj_get_name(int id) { struct lttng_ust_obj *obj = _objd_get(id); if (!obj) return NULL; return obj->u.s.name; } void lttng_ust_objd_table_owner_cleanup(void *owner) { int i; for (i = 0; i < objd_table.allocated_len; i++) { struct lttng_ust_obj *obj; obj = _objd_get(i); if (!obj) continue; if (!obj->u.s.owner) continue; /* skip root handles */ if (!obj->u.s.owner_ref) continue; /* only unref owner ref. */ if (obj->u.s.owner == owner) (void) lttng_ust_objd_unref(i, 1); } } /* * This is LTTng's own personal way to create an ABI for sessiond. * We send commands over a socket. */ static const struct lttng_ust_objd_ops lttng_ops; static const struct lttng_ust_objd_ops lttng_session_ops; static const struct lttng_ust_objd_ops lttng_channel_ops; static const struct lttng_ust_objd_ops lttng_enabler_ops; static const struct lttng_ust_objd_ops lttng_tracepoint_list_ops; static const struct lttng_ust_objd_ops lttng_tracepoint_field_list_ops; int lttng_abi_create_root_handle(void) { int root_handle; /* root handles have NULL owners */ root_handle = objd_alloc(NULL, <tng_ops, NULL, "root"); return root_handle; } static int lttng_is_channel_ready(struct lttng_channel *lttng_chan) { struct channel *chan; unsigned int nr_streams, exp_streams; chan = lttng_chan->chan; nr_streams = channel_handle_get_nr_streams(lttng_chan->handle); exp_streams = chan->nr_streams; return nr_streams == exp_streams; } static int lttng_abi_create_session(void *owner) { struct lttng_session *session; int session_objd, ret; session = lttng_session_create(); if (!session) return -ENOMEM; session_objd = objd_alloc(session, <tng_session_ops, owner, "session"); if (session_objd < 0) { ret = session_objd; goto objd_error; } session->objd = session_objd; session->owner = owner; return session_objd; objd_error: lttng_session_destroy(session); return ret; } static long lttng_abi_tracer_version(int objd, struct lttng_ust_tracer_version *v) { v->major = LTTNG_UST_MAJOR_VERSION; v->minor = LTTNG_UST_MINOR_VERSION; v->patchlevel = LTTNG_UST_PATCHLEVEL_VERSION; return 0; } static long lttng_abi_add_context(int objd, struct lttng_ust_context *context_param, struct lttng_ctx **ctx, struct lttng_session *session) { return lttng_attach_context(context_param, ctx, session); } /** * lttng_cmd - lttng control through socket commands * * @objd: the object descriptor * @cmd: the command * @arg: command arg * @uargs: UST arguments (internal) * @owner: objd owner * * This descriptor implements lttng commands: * LTTNG_UST_SESSION * Returns a LTTng trace session object descriptor * LTTNG_UST_TRACER_VERSION * Returns the LTTng kernel tracer version * LTTNG_UST_TRACEPOINT_LIST * Returns a file descriptor listing available tracepoints * LTTNG_UST_TRACEPOINT_FIELD_LIST * Returns a file descriptor listing available tracepoint fields * LTTNG_UST_WAIT_QUIESCENT * Returns after all previously running probes have completed * * The returned session will be deleted when its file descriptor is closed. */ static long lttng_cmd(int objd, unsigned int cmd, unsigned long arg, union ust_args *uargs, void *owner) { switch (cmd) { case LTTNG_UST_SESSION: return lttng_abi_create_session(owner); case LTTNG_UST_TRACER_VERSION: return lttng_abi_tracer_version(objd, (struct lttng_ust_tracer_version *) arg); case LTTNG_UST_TRACEPOINT_LIST: return lttng_abi_tracepoint_list(owner); case LTTNG_UST_TRACEPOINT_FIELD_LIST: return lttng_abi_tracepoint_field_list(owner); case LTTNG_UST_WAIT_QUIESCENT: synchronize_trace(); return 0; default: return -EINVAL; } } static const struct lttng_ust_objd_ops lttng_ops = { .cmd = lttng_cmd, }; int lttng_abi_map_channel(int session_objd, struct lttng_ust_channel *ust_chan, union ust_args *uargs, void *owner) { struct lttng_session *session = objd_private(session_objd); const char *transport_name; const struct lttng_transport *transport; const char *chan_name; int chan_objd; struct lttng_ust_shm_handle *channel_handle; struct lttng_channel *lttng_chan; struct channel *chan; struct lttng_ust_lib_ring_buffer_config *config; void *chan_data; int wakeup_fd; uint64_t len; int ret; enum lttng_ust_chan_type type; chan_data = uargs->channel.chan_data; wakeup_fd = uargs->channel.wakeup_fd; len = ust_chan->len; type = ust_chan->type; switch (type) { case LTTNG_UST_CHAN_PER_CPU: break; default: ret = -EINVAL; goto invalid; } if (session->been_active) { ret = -EBUSY; goto active; /* Refuse to add channel to active session */ } channel_handle = channel_handle_create(chan_data, len, wakeup_fd); if (!channel_handle) { ret = -EINVAL; goto handle_error; } chan = shmp(channel_handle, channel_handle->chan); assert(chan); chan->handle = channel_handle; config = &chan->backend.config; lttng_chan = channel_get_private(chan); if (!lttng_chan) { ret = -EINVAL; goto alloc_error; } /* Lookup transport name */ switch (type) { case LTTNG_UST_CHAN_PER_CPU: if (config->output == RING_BUFFER_MMAP) { if (config->mode == RING_BUFFER_OVERWRITE) { if (config->wakeup == RING_BUFFER_WAKEUP_BY_WRITER) { transport_name = "relay-overwrite-mmap"; } else { transport_name = "relay-overwrite-rt-mmap"; } } else { if (config->wakeup == RING_BUFFER_WAKEUP_BY_WRITER) { transport_name = "relay-discard-mmap"; } else { transport_name = "relay-discard-rt-mmap"; } } } else { ret = -EINVAL; goto notransport; } chan_name = "channel"; break; default: transport_name = ""; chan_name = ""; ret = -EINVAL; goto notransport; } transport = lttng_transport_find(transport_name); if (!transport) { DBG("LTTng transport %s not found\n", transport_name); ret = -EINVAL; goto notransport; } chan_objd = objd_alloc(NULL, <tng_channel_ops, owner, chan_name); if (chan_objd < 0) { ret = chan_objd; goto objd_error; } /* Initialize our lttng chan */ lttng_chan->chan = chan; lttng_chan->tstate = 1; lttng_chan->enabled = 1; lttng_chan->ctx = NULL; lttng_chan->session = session; lttng_chan->ops = &transport->ops; memcpy(<tng_chan->chan->backend.config, transport->client_config, sizeof(lttng_chan->chan->backend.config)); cds_list_add(<tng_chan->node, &session->chan_head); lttng_chan->header_type = 0; lttng_chan->handle = channel_handle; lttng_chan->type = type; /* * We tolerate no failure path after channel creation. It will stay * invariant for the rest of the session. */ objd_set_private(chan_objd, lttng_chan); lttng_chan->objd = chan_objd; /* The channel created holds a reference on the session */ objd_ref(session_objd); return chan_objd; /* error path after channel was created */ objd_error: notransport: free(lttng_chan); alloc_error: channel_destroy(chan, channel_handle, 0); return ret; /* * error path before channel creation (owning chan_data and * wakeup_fd). */ handle_error: active: invalid: { int close_ret; close_ret = close(wakeup_fd); if (close_ret) { PERROR("close"); } } free(chan_data); return ret; } /** * lttng_session_cmd - lttng session object command * * @obj: the object * @cmd: the command * @arg: command arg * @uargs: UST arguments (internal) * @owner: objd owner * * This descriptor implements lttng commands: * LTTNG_UST_CHANNEL * Returns a LTTng channel object descriptor * LTTNG_UST_ENABLE * Enables tracing for a session (weak enable) * LTTNG_UST_DISABLE * Disables tracing for a session (strong disable) * * The returned channel will be deleted when its file descriptor is closed. */ static long lttng_session_cmd(int objd, unsigned int cmd, unsigned long arg, union ust_args *uargs, void *owner) { struct lttng_session *session = objd_private(objd); switch (cmd) { case LTTNG_UST_CHANNEL: return lttng_abi_map_channel(objd, (struct lttng_ust_channel *) arg, uargs, owner); case LTTNG_UST_SESSION_START: case LTTNG_UST_ENABLE: return lttng_session_enable(session); case LTTNG_UST_SESSION_STOP: case LTTNG_UST_DISABLE: return lttng_session_disable(session); default: return -EINVAL; } } /* * Called when the last file reference is dropped. * * Big fat note: channels and events are invariant for the whole session after * their creation. So this session destruction also destroys all channel and * event structures specific to this session (they are not destroyed when their * individual file is released). */ static int lttng_release_session(int objd) { struct lttng_session *session = objd_private(objd); if (session) { lttng_session_destroy(session); return 0; } else { return -EINVAL; } } static const struct lttng_ust_objd_ops lttng_session_ops = { .release = lttng_release_session, .cmd = lttng_session_cmd, }; static long lttng_tracepoint_list_cmd(int objd, unsigned int cmd, unsigned long arg, union ust_args *uargs, void *owner) { struct lttng_ust_tracepoint_list *list = objd_private(objd); struct lttng_ust_tracepoint_iter *tp = (struct lttng_ust_tracepoint_iter *) arg; struct lttng_ust_tracepoint_iter *iter; switch (cmd) { case LTTNG_UST_TRACEPOINT_LIST_GET: { iter = lttng_ust_tracepoint_list_get_iter_next(list); if (!iter) return -LTTNG_UST_ERR_NOENT; memcpy(tp, iter, sizeof(*tp)); return 0; } default: return -EINVAL; } } static int lttng_abi_tracepoint_list(void *owner) { int list_objd, ret; struct lttng_ust_tracepoint_list *list; list_objd = objd_alloc(NULL, <tng_tracepoint_list_ops, owner, "tp_list"); if (list_objd < 0) { ret = list_objd; goto objd_error; } list = zmalloc(sizeof(*list)); if (!list) { ret = -ENOMEM; goto alloc_error; } objd_set_private(list_objd, list); /* populate list by walking on all registered probes. */ ret = lttng_probes_get_event_list(list); if (ret) { goto list_error; } return list_objd; list_error: free(list); alloc_error: { int err; err = lttng_ust_objd_unref(list_objd, 1); assert(!err); } objd_error: return ret; } static int lttng_release_tracepoint_list(int objd) { struct lttng_ust_tracepoint_list *list = objd_private(objd); if (list) { lttng_probes_prune_event_list(list); free(list); return 0; } else { return -EINVAL; } } static const struct lttng_ust_objd_ops lttng_tracepoint_list_ops = { .release = lttng_release_tracepoint_list, .cmd = lttng_tracepoint_list_cmd, }; static long lttng_tracepoint_field_list_cmd(int objd, unsigned int cmd, unsigned long arg, union ust_args *uargs, void *owner) { struct lttng_ust_field_list *list = objd_private(objd); struct lttng_ust_field_iter *tp = &uargs->field_list.entry; struct lttng_ust_field_iter *iter; switch (cmd) { case LTTNG_UST_TRACEPOINT_FIELD_LIST_GET: { iter = lttng_ust_field_list_get_iter_next(list); if (!iter) return -LTTNG_UST_ERR_NOENT; memcpy(tp, iter, sizeof(*tp)); return 0; } default: return -EINVAL; } } static int lttng_abi_tracepoint_field_list(void *owner) { int list_objd, ret; struct lttng_ust_field_list *list; list_objd = objd_alloc(NULL, <tng_tracepoint_field_list_ops, owner, "tp_field_list"); if (list_objd < 0) { ret = list_objd; goto objd_error; } list = zmalloc(sizeof(*list)); if (!list) { ret = -ENOMEM; goto alloc_error; } objd_set_private(list_objd, list); /* populate list by walking on all registered probes. */ ret = lttng_probes_get_field_list(list); if (ret) { goto list_error; } return list_objd; list_error: free(list); alloc_error: { int err; err = lttng_ust_objd_unref(list_objd, 1); assert(!err); } objd_error: return ret; } static int lttng_release_tracepoint_field_list(int objd) { struct lttng_ust_field_list *list = objd_private(objd); if (list) { lttng_probes_prune_field_list(list); free(list); return 0; } else { return -EINVAL; } } static const struct lttng_ust_objd_ops lttng_tracepoint_field_list_ops = { .release = lttng_release_tracepoint_field_list, .cmd = lttng_tracepoint_field_list_cmd, }; static int lttng_abi_map_stream(int channel_objd, struct lttng_ust_stream *info, union ust_args *uargs, void *owner) { struct lttng_channel *channel = objd_private(channel_objd); int ret; ret = channel_handle_add_stream(channel->handle, uargs->stream.shm_fd, uargs->stream.wakeup_fd, info->stream_nr, info->len); if (ret) goto error_add_stream; return 0; error_add_stream: return ret; } static int lttng_abi_create_enabler(int channel_objd, struct lttng_ust_event *event_param, void *owner, enum lttng_enabler_type type) { struct lttng_channel *channel = objd_private(channel_objd); struct lttng_enabler *enabler; int event_objd, ret; event_param->name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; event_objd = objd_alloc(NULL, <tng_enabler_ops, owner, "enabler"); if (event_objd < 0) { ret = event_objd; goto objd_error; } /* * We tolerate no failure path after event creation. It will stay * invariant for the rest of the session. */ enabler = lttng_enabler_create(type, event_param, channel); if (!enabler) { ret = -ENOMEM; goto event_error; } objd_set_private(event_objd, enabler); /* The event holds a reference on the channel */ objd_ref(channel_objd); return event_objd; event_error: { int err; err = lttng_ust_objd_unref(event_objd, 1); assert(!err); } objd_error: return ret; } /** * lttng_channel_cmd - lttng control through object descriptors * * @objd: the object descriptor * @cmd: the command * @arg: command arg * @uargs: UST arguments (internal) * @owner: objd owner * * This object descriptor implements lttng commands: * LTTNG_UST_STREAM * Returns an event stream object descriptor or failure. * (typically, one event stream records events from one CPU) * LTTNG_UST_EVENT * Returns an event object descriptor or failure. * LTTNG_UST_CONTEXT * Prepend a context field to each event in the channel * LTTNG_UST_ENABLE * Enable recording for events in this channel (weak enable) * LTTNG_UST_DISABLE * Disable recording for events in this channel (strong disable) * * Channel and event file descriptors also hold a reference on the session. */ static long lttng_channel_cmd(int objd, unsigned int cmd, unsigned long arg, union ust_args *uargs, void *owner) { struct lttng_channel *channel = objd_private(objd); if (cmd != LTTNG_UST_STREAM) { /* * Check if channel received all streams. */ if (!lttng_is_channel_ready(channel)) return -EPERM; } switch (cmd) { case LTTNG_UST_STREAM: { struct lttng_ust_stream *stream; stream = (struct lttng_ust_stream *) arg; /* stream used as output */ return lttng_abi_map_stream(objd, stream, uargs, owner); } case LTTNG_UST_EVENT: { struct lttng_ust_event *event_param = (struct lttng_ust_event *) arg; if (event_param->name[strlen(event_param->name) - 1] == '*') { /* If ends with wildcard, create wildcard. */ return lttng_abi_create_enabler(objd, event_param, owner, LTTNG_ENABLER_WILDCARD); } else { return lttng_abi_create_enabler(objd, event_param, owner, LTTNG_ENABLER_EVENT); } } case LTTNG_UST_CONTEXT: return lttng_abi_add_context(objd, (struct lttng_ust_context *) arg, &channel->ctx, channel->session); case LTTNG_UST_ENABLE: return lttng_channel_enable(channel); case LTTNG_UST_DISABLE: return lttng_channel_disable(channel); case LTTNG_UST_FLUSH_BUFFER: return channel->ops->flush_buffer(channel->chan, channel->handle); default: return -EINVAL; } } static int lttng_channel_release(int objd) { struct lttng_channel *channel = objd_private(objd); if (channel) return lttng_ust_objd_unref(channel->session->objd, 0); return 0; } static const struct lttng_ust_objd_ops lttng_channel_ops = { .release = lttng_channel_release, .cmd = lttng_channel_cmd, }; /** * lttng_enabler_cmd - lttng control through object descriptors * * @objd: the object descriptor * @cmd: the command * @arg: command arg * @uargs: UST arguments (internal) * @owner: objd owner * * This object descriptor implements lttng commands: * LTTNG_UST_CONTEXT * Prepend a context field to each record of events of this * enabler. * LTTNG_UST_ENABLE * Enable recording for this enabler * LTTNG_UST_DISABLE * Disable recording for this enabler * LTTNG_UST_FILTER * Attach a filter to an enabler. * LTTNG_UST_EXCLUSION * Attach exclusions to an enabler. */ static long lttng_enabler_cmd(int objd, unsigned int cmd, unsigned long arg, union ust_args *uargs, void *owner) { struct lttng_enabler *enabler = objd_private(objd); switch (cmd) { case LTTNG_UST_CONTEXT: return lttng_enabler_attach_context(enabler, (struct lttng_ust_context *) arg); case LTTNG_UST_ENABLE: return lttng_enabler_enable(enabler); case LTTNG_UST_DISABLE: return lttng_enabler_disable(enabler); case LTTNG_UST_FILTER: { int ret; ret = lttng_enabler_attach_bytecode(enabler, (struct lttng_ust_filter_bytecode_node *) arg); if (ret) return ret; return 0; } case LTTNG_UST_EXCLUSION: { return lttng_enabler_attach_exclusion(enabler, (struct lttng_ust_excluder_node *) arg); } default: return -EINVAL; } } static int lttng_enabler_release(int objd) { struct lttng_enabler *enabler = objd_private(objd); if (enabler) return lttng_ust_objd_unref(enabler->chan->objd, 0); return 0; } static const struct lttng_ust_objd_ops lttng_enabler_ops = { .release = lttng_enabler_release, .cmd = lttng_enabler_cmd, }; void lttng_ust_abi_exit(void) { lttng_ust_abi_close_in_progress = 1; objd_table_destroy(); lttng_ust_abi_close_in_progress = 0; } lttng-ust-2.4.0/liblttng-ust/lttng-probes.c0000644000175000017500000002777512304151532015631 00000000000000/* * lttng-probes.c * * Holds LTTng probes registry. * * Copyright 2010-2012 (c) - Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include "tracepoint-internal.h" #include #include #include #include "lttng-tracer-core.h" #include "jhash.h" #include "error.h" /* * probe list is protected by ust_lock()/ust_unlock(). */ static CDS_LIST_HEAD(_probe_list); /* * List of probes registered by not yet processed. */ static CDS_LIST_HEAD(lazy_probe_init); /* * lazy_nesting counter ensures we don't trigger lazy probe registration * fixup while we are performing the fixup. It is protected by the ust * mutex. */ static int lazy_nesting; /* * Called under ust lock. */ static int check_event_provider(struct lttng_probe_desc *desc) { int i; size_t provider_name_len; provider_name_len = strnlen(desc->provider, LTTNG_UST_SYM_NAME_LEN - 1); for (i = 0; i < desc->nr_events; i++) { if (strncmp(desc->event_desc[i]->name, desc->provider, provider_name_len)) return 0; /* provider mismatch */ } return 1; } /* * Called under ust lock. */ static void lttng_lazy_probe_register(struct lttng_probe_desc *desc) { struct lttng_probe_desc *iter; struct cds_list_head *probe_list; /* * Each provider enforce that every event name begins with the * provider name. Check this in an assertion for extra * carefulness. This ensures we cannot have duplicate event * names across providers. */ assert(check_event_provider(desc)); /* * The provider ensures there are no duplicate event names. * Duplicated TRACEPOINT_EVENT event names would generate a * compile-time error due to duplicated symbol names. */ /* * We sort the providers by struct lttng_probe_desc pointer * address. */ probe_list = &_probe_list; cds_list_for_each_entry_reverse(iter, probe_list, head) { BUG_ON(iter == desc); /* Should never be in the list twice */ if (iter < desc) { /* We belong to the location right after iter. */ cds_list_add(&desc->head, &iter->head); goto desc_added; } } /* We should be added at the head of the list */ cds_list_add(&desc->head, probe_list); desc_added: DBG("just registered probe %s containing %u events", desc->provider, desc->nr_events); } /* * Called under ust lock. */ static void fixup_lazy_probes(void) { struct lttng_probe_desc *iter, *tmp; int ret; lazy_nesting++; cds_list_for_each_entry_safe(iter, tmp, &lazy_probe_init, lazy_init_head) { lttng_lazy_probe_register(iter); iter->lazy = 0; cds_list_del(&iter->lazy_init_head); } ret = lttng_fix_pending_events(); assert(!ret); lazy_nesting--; } /* * Called under ust lock. */ struct cds_list_head *lttng_get_probe_list_head(void) { if (!lazy_nesting && !cds_list_empty(&lazy_probe_init)) fixup_lazy_probes(); return &_probe_list; } static const struct lttng_probe_desc *find_provider(const char *provider) { struct lttng_probe_desc *iter; struct cds_list_head *probe_list; probe_list = lttng_get_probe_list_head(); cds_list_for_each_entry(iter, probe_list, head) { if (!strcmp(iter->provider, provider)) return iter; } return NULL; } static int check_provider_version(struct lttng_probe_desc *desc) { /* * Check tracepoint provider version compatibility. */ if (desc->major <= LTTNG_UST_PROVIDER_MAJOR) { DBG("Provider \"%s\" accepted, version %u.%u is compatible " "with LTTng UST provider version %u.%u.", desc->provider, desc->major, desc->minor, LTTNG_UST_PROVIDER_MAJOR, LTTNG_UST_PROVIDER_MINOR); if (desc->major < LTTNG_UST_PROVIDER_MAJOR) { DBG("However, some LTTng UST features might not be " "available for this provider unless it is " "recompiled against a more recent LTTng UST."); } return 1; /* accept */ } else { ERR("Provider \"%s\" rejected, version %u.%u is incompatible " "with LTTng UST provider version %u.%u. Please upgrade " "LTTng UST.", desc->provider, desc->major, desc->minor, LTTNG_UST_PROVIDER_MAJOR, LTTNG_UST_PROVIDER_MINOR); return 0; /* reject */ } } int lttng_probe_register(struct lttng_probe_desc *desc) { int ret = 0; /* * If version mismatch, don't register, but don't trigger assert * on caller. The version check just prints an error. */ if (!check_provider_version(desc)) return 0; ust_lock_nocheck(); /* * Check if the provider has already been registered. */ if (find_provider(desc->provider)) { ret = -EEXIST; goto end; } cds_list_add(&desc->lazy_init_head, &lazy_probe_init); desc->lazy = 1; DBG("adding probe %s containing %u events to lazy registration list", desc->provider, desc->nr_events); /* * If there is at least one active session, we need to register * the probe immediately, since we cannot delay event * registration because they are needed ASAP. */ if (lttng_session_active()) fixup_lazy_probes(); end: ust_unlock(); return ret; } /* Backward compatibility with UST 2.0 */ int ltt_probe_register(struct lttng_probe_desc *desc) { return lttng_probe_register(desc); } void lttng_probe_unregister(struct lttng_probe_desc *desc) { if (!check_provider_version(desc)) return; ust_lock_nocheck(); if (!desc->lazy) cds_list_del(&desc->head); else cds_list_del(&desc->lazy_init_head); DBG("just unregistered probe %s", desc->provider); ust_unlock(); } /* Backward compatibility with UST 2.0 */ void ltt_probe_unregister(struct lttng_probe_desc *desc) { lttng_probe_unregister(desc); } void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list) { struct tp_list_entry *list_entry, *tmp; cds_list_for_each_entry_safe(list_entry, tmp, &list->head, head) { cds_list_del(&list_entry->head); free(list_entry); } } /* * called with UST lock held. */ int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list) { struct lttng_probe_desc *probe_desc; int i; struct cds_list_head *probe_list; probe_list = lttng_get_probe_list_head(); CDS_INIT_LIST_HEAD(&list->head); cds_list_for_each_entry(probe_desc, probe_list, head) { for (i = 0; i < probe_desc->nr_events; i++) { struct tp_list_entry *list_entry; list_entry = zmalloc(sizeof(*list_entry)); if (!list_entry) goto err_nomem; cds_list_add(&list_entry->head, &list->head); strncpy(list_entry->tp.name, probe_desc->event_desc[i]->name, LTTNG_UST_SYM_NAME_LEN); list_entry->tp.name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; if (!probe_desc->event_desc[i]->loglevel) { list_entry->tp.loglevel = TRACE_DEFAULT; } else { list_entry->tp.loglevel = *(*probe_desc->event_desc[i]->loglevel); } } } if (cds_list_empty(&list->head)) list->iter = NULL; else list->iter = cds_list_first_entry(&list->head, struct tp_list_entry, head); return 0; err_nomem: lttng_probes_prune_event_list(list); return -ENOMEM; } /* * Return current iteration position, advance internal iterator to next. * Return NULL if end of list. */ struct lttng_ust_tracepoint_iter * lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list) { struct tp_list_entry *entry; if (!list->iter) return NULL; entry = list->iter; if (entry->head.next == &list->head) list->iter = NULL; else list->iter = cds_list_entry(entry->head.next, struct tp_list_entry, head); return &entry->tp; } void lttng_probes_prune_field_list(struct lttng_ust_field_list *list) { struct tp_field_list_entry *list_entry, *tmp; cds_list_for_each_entry_safe(list_entry, tmp, &list->head, head) { cds_list_del(&list_entry->head); free(list_entry); } } /* * called with UST lock held. */ int lttng_probes_get_field_list(struct lttng_ust_field_list *list) { struct lttng_probe_desc *probe_desc; int i; struct cds_list_head *probe_list; probe_list = lttng_get_probe_list_head(); CDS_INIT_LIST_HEAD(&list->head); cds_list_for_each_entry(probe_desc, probe_list, head) { for (i = 0; i < probe_desc->nr_events; i++) { const struct lttng_event_desc *event_desc = probe_desc->event_desc[i]; int j; if (event_desc->nr_fields == 0) { /* Events without fields. */ struct tp_field_list_entry *list_entry; list_entry = zmalloc(sizeof(*list_entry)); if (!list_entry) goto err_nomem; cds_list_add(&list_entry->head, &list->head); strncpy(list_entry->field.event_name, event_desc->name, LTTNG_UST_SYM_NAME_LEN); list_entry->field.event_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; list_entry->field.field_name[0] = '\0'; list_entry->field.type = LTTNG_UST_FIELD_OTHER; if (!event_desc->loglevel) { list_entry->field.loglevel = TRACE_DEFAULT; } else { list_entry->field.loglevel = *(*event_desc->loglevel); } list_entry->field.nowrite = 1; } for (j = 0; j < event_desc->nr_fields; j++) { const struct lttng_event_field *event_field = &event_desc->fields[j]; struct tp_field_list_entry *list_entry; list_entry = zmalloc(sizeof(*list_entry)); if (!list_entry) goto err_nomem; cds_list_add(&list_entry->head, &list->head); strncpy(list_entry->field.event_name, event_desc->name, LTTNG_UST_SYM_NAME_LEN); list_entry->field.event_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; strncpy(list_entry->field.field_name, event_field->name, LTTNG_UST_SYM_NAME_LEN); list_entry->field.field_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; switch (event_field->type.atype) { case atype_integer: list_entry->field.type = LTTNG_UST_FIELD_INTEGER; break; case atype_string: list_entry->field.type = LTTNG_UST_FIELD_STRING; break; case atype_array: if (event_field->type.u.array.elem_type.atype != atype_integer || event_field->type.u.array.elem_type.u.basic.integer.encoding == lttng_encode_none) list_entry->field.type = LTTNG_UST_FIELD_OTHER; else list_entry->field.type = LTTNG_UST_FIELD_STRING; break; case atype_sequence: if (event_field->type.u.sequence.elem_type.atype != atype_integer || event_field->type.u.sequence.elem_type.u.basic.integer.encoding == lttng_encode_none) list_entry->field.type = LTTNG_UST_FIELD_OTHER; else list_entry->field.type = LTTNG_UST_FIELD_STRING; break; case atype_float: list_entry->field.type = LTTNG_UST_FIELD_FLOAT; break; case atype_enum: list_entry->field.type = LTTNG_UST_FIELD_ENUM; break; default: list_entry->field.type = LTTNG_UST_FIELD_OTHER; } if (!event_desc->loglevel) { list_entry->field.loglevel = TRACE_DEFAULT; } else { list_entry->field.loglevel = *(*event_desc->loglevel); } list_entry->field.nowrite = event_field->nowrite; } } } if (cds_list_empty(&list->head)) list->iter = NULL; else list->iter = cds_list_first_entry(&list->head, struct tp_field_list_entry, head); return 0; err_nomem: lttng_probes_prune_field_list(list); return -ENOMEM; } /* * Return current iteration position, advance internal iterator to next. * Return NULL if end of list. */ struct lttng_ust_field_iter * lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list) { struct tp_field_list_entry *entry; if (!list->iter) return NULL; entry = list->iter; if (entry->head.next == &list->head) list->iter = NULL; else list->iter = cds_list_entry(entry->head.next, struct tp_field_list_entry, head); return &entry->field; } lttng-ust-2.4.0/liblttng-ust/Makefile.am0000644000175000017500000000412512304151532015061 00000000000000AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include AM_CFLAGS = -fno-strict-aliasing noinst_LTLIBRARIES = liblttng-ust-runtime.la liblttng-ust-support.la lib_LTLIBRARIES = liblttng-ust-tracepoint.la liblttng-ust.la liblttng_ust_tracepoint_la_SOURCES = \ tracepoint.c \ tracepoint-internal.h \ lttng-tracer-core.h \ jhash.h \ error.h liblttng_ust_tracepoint_la_LIBADD = \ -lurcu-bp \ $(top_builddir)/snprintf/libustsnprintf.la liblttng_ust_tracepoint_la_LDFLAGS = -no-undefined -version-info $(LTTNG_UST_LIBRARY_VERSION) liblttng_ust_tracepoint_la_CFLAGS = -DUST_COMPONENT="liblttng_ust_tracepoint" -fno-strict-aliasing liblttng_ust_runtime_la_SOURCES = \ lttng-ust-comm.c \ lttng-ust-abi.c \ lttng-probes.c \ lttng-context-vtid.c \ lttng-context-vpid.c \ lttng-context-pthread-id.c \ lttng-context-procname.c \ lttng-context-ip.c \ lttng-context.c \ lttng-events.c \ lttng-filter.c \ lttng-filter.h \ lttng-filter-validator.c \ lttng-filter-specialize.c \ lttng-filter-interpreter.c \ filter-bytecode.h \ lttng-hash-helper.h \ lttng-ust-baddr.c \ lttng-ust-baddr.h \ ust_baddr_statedump.h \ tracepoint-internal.h \ clock.h \ compat.h \ wait.h \ jhash.h \ lttng-ust-uuid.h \ error.h liblttng_ust_support_la_SOURCES = \ lttng-tracer.h \ lttng-tracer-core.h \ ust-core.c \ lttng-rb-clients.h \ lttng-ring-buffer-client.h \ lttng-ring-buffer-client-discard.c \ lttng-ring-buffer-client-discard-rt.c \ lttng-ring-buffer-client-overwrite.c \ lttng-ring-buffer-client-overwrite-rt.c \ lttng-ring-buffer-metadata-client.h \ lttng-ring-buffer-metadata-client.c liblttng_ust_la_SOURCES = liblttng_ust_la_LDFLAGS = -no-undefined -version-info $(LTTNG_UST_LIBRARY_VERSION) liblttng_ust_support_la_LIBADD = \ $(top_builddir)/libringbuffer/libringbuffer.la liblttng_ust_la_LIBADD = \ -lpthread \ -lrt \ -lurcu-cds \ $(top_builddir)/snprintf/libustsnprintf.la \ $(top_builddir)/liblttng-ust-comm/liblttng-ust-comm.la \ liblttng-ust-tracepoint.la \ liblttng-ust-runtime.la liblttng-ust-support.la liblttng_ust_la_CFLAGS = -DUST_COMPONENT="liblttng_ust" -fno-strict-aliasing lttng-ust-2.4.0/liblttng-ust/lttng-context-vpid.c0000644000175000017500000000567012275157353016767 00000000000000/* * lttng-context-vpid.c * * LTTng UST vpid context. * * Copyright (C) 2009-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #ifdef __linux__ static inline pid_t wrapper_getpid(void) { return getpid(); } void lttng_context_vpid_reset(void) { } #else /* * We cache the result to ensure we don't trigger a system call for * each event. */ static pid_t cached_vpid; static inline pid_t wrapper_getpid(void) { if (caa_unlikely(!cached_vpid)) cached_vpid = getpid(); return cached_vpid; } /* * Upon fork or clone, the PID assigned to our thread is not the same as * we kept in cache. */ void lttng_context_vpid_reset(void) { cached_vpid = 0; } #endif static size_t vpid_get_size(size_t offset) { size_t size = 0; size += lib_ring_buffer_align(offset, lttng_alignof(pid_t)); size += sizeof(pid_t); return size; } static void vpid_record(struct lttng_ctx_field *field, struct lttng_ust_lib_ring_buffer_ctx *ctx, struct lttng_channel *chan) { pid_t pid; pid = wrapper_getpid(); lib_ring_buffer_align_ctx(ctx, lttng_alignof(pid)); chan->ops->event_write(ctx, &pid, sizeof(pid)); } static void vpid_get_value(struct lttng_ctx_field *field, union lttng_ctx_value *value) { pid_t pid; pid = wrapper_getpid(); value->s64 = pid; } int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx) { struct lttng_ctx_field *field; field = lttng_append_context(ctx); if (!field) return -ENOMEM; if (lttng_find_context(*ctx, "vpid")) { lttng_remove_context_field(ctx, field); return -EEXIST; } field->event_field.name = "vpid"; field->event_field.type.atype = atype_integer; field->event_field.type.u.basic.integer.size = sizeof(pid_t) * CHAR_BIT; field->event_field.type.u.basic.integer.alignment = lttng_alignof(pid_t) * CHAR_BIT; field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(pid_t); field->event_field.type.u.basic.integer.reverse_byte_order = 0; field->event_field.type.u.basic.integer.base = 10; field->event_field.type.u.basic.integer.encoding = lttng_encode_none; field->get_size = vpid_get_size; field->record = vpid_record; field->get_value = vpid_get_value; return 0; } lttng-ust-2.4.0/liblttng-ust/lttng-ring-buffer-client-overwrite-rt.c0000644000175000017500000000263212275157353022467 00000000000000/* * lttng-ring-buffer-client-overwrite-rt.c * * LTTng lib ring buffer client (overwrite mode). * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include "lttng-tracer.h" #define RING_BUFFER_MODE_TEMPLATE RING_BUFFER_OVERWRITE #define RING_BUFFER_MODE_TEMPLATE_STRING "overwrite-rt" #define RING_BUFFER_MODE_TEMPLATE_INIT \ lttng_ring_buffer_client_overwrite_rt_init #define RING_BUFFER_MODE_TEMPLATE_EXIT \ lttng_ring_buffer_client_overwrite_rt_exit #define LTTNG_CLIENT_TYPE LTTNG_CLIENT_OVERWRITE_RT #define LTTNG_CLIENT_CALLBACKS lttng_client_callbacks_overwrite_rt #define LTTNG_CLIENT_WAKEUP RING_BUFFER_WAKEUP_BY_TIMER #include "lttng-ring-buffer-client.h" lttng-ust-2.4.0/liblttng-ust/ust_baddr_statedump.h0000644000175000017500000000406112304151532017232 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_baddr_statedump #if !defined(_TRACEPOINT_UST_BADDR_STATEDUMP_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_BADDR_STATEDUMP_H #ifdef __cplusplus extern "C" { #endif /* * Copyright (C) 2013 Paul Woegerer * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #define LTTNG_UST_BADDR_STATEDUMP_PROVIDER #include TRACEPOINT_EVENT(ust_baddr_statedump, soinfo, TP_ARGS(struct lttng_session *, session, void *, baddr, const char*, sopath, int64_t, size, int64_t, mtime), TP_FIELDS( ctf_integer_hex(void *, baddr, baddr) ctf_string(sopath, sopath) ctf_integer(int64_t, size, size) ctf_integer(int64_t, mtime, mtime) ) ) #endif /* _TRACEPOINT_UST_BADDR_STATEDUMP_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_baddr_statedump.h" /* This part must be outside ifdef protection */ #include #ifdef __cplusplus } #endif lttng-ust-2.4.0/liblttng-ust/lttng-context-ip.c0000644000175000017500000000433112304144741016414 00000000000000/* * lttng-context-ip.c * * LTTng UST Instruction Pointer Context. * * Copyright (C) 2009-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include static size_t ip_get_size(size_t offset) { size_t size = 0; size += lib_ring_buffer_align(offset, lttng_alignof(void *)); size += sizeof(void *); return size; } static void ip_record(struct lttng_ctx_field *field, struct lttng_ust_lib_ring_buffer_ctx *ctx, struct lttng_channel *chan) { void *ip; ip = ctx->ip; lib_ring_buffer_align_ctx(ctx, lttng_alignof(ip)); chan->ops->event_write(ctx, &ip, sizeof(ip)); } int lttng_add_ip_to_ctx(struct lttng_ctx **ctx) { struct lttng_ctx_field *field; field = lttng_append_context(ctx); if (!field) return -ENOMEM; if (lttng_find_context(*ctx, "ip")) { lttng_remove_context_field(ctx, field); return -EEXIST; } field->event_field.name = "ip"; field->event_field.type.atype = atype_integer; field->event_field.type.u.basic.integer.size = sizeof(void *) * CHAR_BIT; field->event_field.type.u.basic.integer.alignment = lttng_alignof(void *) * CHAR_BIT; field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(void *); field->event_field.type.u.basic.integer.reverse_byte_order = 0; field->event_field.type.u.basic.integer.base = 16; field->event_field.type.u.basic.integer.encoding = lttng_encode_none; field->get_size = ip_get_size; field->record = ip_record; return 0; } lttng-ust-2.4.0/liblttng-ust/filter-bytecode.h0000644000175000017500000000765112275157353016304 00000000000000#ifndef _FILTER_BYTECODE_H #define _FILTER_BYTECODE_H /* * filter-bytecode.h * * LTTng filter bytecode * * Copyright 2012 - Mathieu Desnoyers * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include /* * offsets are absolute from start of bytecode. */ struct field_ref { /* Initially, symbol offset. After link, field offset. */ uint16_t offset; } __attribute__((packed)); struct literal_numeric { int64_t v; } __attribute__((packed)); struct literal_double { double v; } __attribute__((packed)); struct literal_string { char string[0]; } __attribute__((packed)); enum filter_op { FILTER_OP_UNKNOWN = 0, FILTER_OP_RETURN, /* binary */ FILTER_OP_MUL, FILTER_OP_DIV, FILTER_OP_MOD, FILTER_OP_PLUS, FILTER_OP_MINUS, FILTER_OP_RSHIFT, FILTER_OP_LSHIFT, FILTER_OP_BIN_AND, FILTER_OP_BIN_OR, FILTER_OP_BIN_XOR, /* binary comparators */ FILTER_OP_EQ, FILTER_OP_NE, FILTER_OP_GT, FILTER_OP_LT, FILTER_OP_GE, FILTER_OP_LE, /* string binary comparator */ FILTER_OP_EQ_STRING, FILTER_OP_NE_STRING, FILTER_OP_GT_STRING, FILTER_OP_LT_STRING, FILTER_OP_GE_STRING, FILTER_OP_LE_STRING, /* s64 binary comparator */ FILTER_OP_EQ_S64, FILTER_OP_NE_S64, FILTER_OP_GT_S64, FILTER_OP_LT_S64, FILTER_OP_GE_S64, FILTER_OP_LE_S64, /* double binary comparator */ FILTER_OP_EQ_DOUBLE, FILTER_OP_NE_DOUBLE, FILTER_OP_GT_DOUBLE, FILTER_OP_LT_DOUBLE, FILTER_OP_GE_DOUBLE, FILTER_OP_LE_DOUBLE, /* Mixed S64-double binary comparators */ FILTER_OP_EQ_DOUBLE_S64, FILTER_OP_NE_DOUBLE_S64, FILTER_OP_GT_DOUBLE_S64, FILTER_OP_LT_DOUBLE_S64, FILTER_OP_GE_DOUBLE_S64, FILTER_OP_LE_DOUBLE_S64, FILTER_OP_EQ_S64_DOUBLE, FILTER_OP_NE_S64_DOUBLE, FILTER_OP_GT_S64_DOUBLE, FILTER_OP_LT_S64_DOUBLE, FILTER_OP_GE_S64_DOUBLE, FILTER_OP_LE_S64_DOUBLE, /* unary */ FILTER_OP_UNARY_PLUS, FILTER_OP_UNARY_MINUS, FILTER_OP_UNARY_NOT, FILTER_OP_UNARY_PLUS_S64, FILTER_OP_UNARY_MINUS_S64, FILTER_OP_UNARY_NOT_S64, FILTER_OP_UNARY_PLUS_DOUBLE, FILTER_OP_UNARY_MINUS_DOUBLE, FILTER_OP_UNARY_NOT_DOUBLE, /* logical */ FILTER_OP_AND, FILTER_OP_OR, /* load field ref */ FILTER_OP_LOAD_FIELD_REF, FILTER_OP_LOAD_FIELD_REF_STRING, FILTER_OP_LOAD_FIELD_REF_SEQUENCE, FILTER_OP_LOAD_FIELD_REF_S64, FILTER_OP_LOAD_FIELD_REF_DOUBLE, /* load immediate from operand */ FILTER_OP_LOAD_STRING, FILTER_OP_LOAD_S64, FILTER_OP_LOAD_DOUBLE, /* cast */ FILTER_OP_CAST_TO_S64, FILTER_OP_CAST_DOUBLE_TO_S64, FILTER_OP_CAST_NOP, /* get context ref */ FILTER_OP_GET_CONTEXT_REF, FILTER_OP_GET_CONTEXT_REF_STRING, FILTER_OP_GET_CONTEXT_REF_S64, FILTER_OP_GET_CONTEXT_REF_DOUBLE, NR_FILTER_OPS, }; typedef uint8_t filter_opcode_t; struct load_op { filter_opcode_t op; char data[0]; /* data to load. Size known by enum filter_opcode and null-term char. */ } __attribute__((packed)); struct binary_op { filter_opcode_t op; } __attribute__((packed)); struct unary_op { filter_opcode_t op; } __attribute__((packed)); /* skip_offset is absolute from start of bytecode */ struct logical_op { filter_opcode_t op; uint16_t skip_offset; /* bytecode insn, if skip second test */ } __attribute__((packed)); struct cast_op { filter_opcode_t op; } __attribute__((packed)); struct return_op { filter_opcode_t op; } __attribute__((packed)); #endif /* _FILTER_BYTECODE_H */ lttng-ust-2.4.0/liblttng-ust/lttng-filter-interpreter.c0000644000175000017500000005743512275157353020177 00000000000000/* * lttng-filter-interpreter.c * * LTTng UST filter interpreter. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "lttng-filter.h" /* * -1: wildcard found. * -2: unknown escape char. * 0: normal char. */ static int parse_char(const char **p) { switch (**p) { case '\\': (*p)++; switch (**p) { case '\\': case '*': return 0; default: return -2; } case '*': return -1; default: return 0; } } static int stack_strcmp(struct estack *stack, int top, const char *cmp_type) { const char *p = estack_bx(stack, top)->u.s.str, *q = estack_ax(stack, top)->u.s.str; int ret; int diff; for (;;) { int escaped_r0 = 0; if (unlikely(p - estack_bx(stack, top)->u.s.str > estack_bx(stack, top)->u.s.seq_len || *p == '\0')) { if (q - estack_ax(stack, top)->u.s.str > estack_ax(stack, top)->u.s.seq_len || *q == '\0') { return 0; } else { if (estack_ax(stack, top)->u.s.literal) { ret = parse_char(&q); if (ret == -1) return 0; } return -1; } } if (unlikely(q - estack_ax(stack, top)->u.s.str > estack_ax(stack, top)->u.s.seq_len || *q == '\0')) { if (p - estack_bx(stack, top)->u.s.str > estack_bx(stack, top)->u.s.seq_len || *p == '\0') { return 0; } else { if (estack_bx(stack, top)->u.s.literal) { ret = parse_char(&p); if (ret == -1) return 0; } return 1; } } if (estack_bx(stack, top)->u.s.literal) { ret = parse_char(&p); if (ret == -1) { return 0; } else if (ret == -2) { escaped_r0 = 1; } /* else compare both char */ } if (estack_ax(stack, top)->u.s.literal) { ret = parse_char(&q); if (ret == -1) { return 0; } else if (ret == -2) { if (!escaped_r0) return -1; } else { if (escaped_r0) return 1; } } else { if (escaped_r0) return 1; } diff = *p - *q; if (diff != 0) break; p++; q++; } return diff; } uint64_t lttng_filter_false(void *filter_data, const char *filter_stack_data) { return 0; } #ifdef INTERPRETER_USE_SWITCH /* * Fallback for compilers that do not support taking address of labels. */ #define START_OP \ start_pc = &bytecode->data[0]; \ for (pc = next_pc = start_pc; pc - start_pc < bytecode->len; \ pc = next_pc) { \ dbg_printf("Executing op %s (%u)\n", \ print_op((unsigned int) *(filter_opcode_t *) pc), \ (unsigned int) *(filter_opcode_t *) pc); \ switch (*(filter_opcode_t *) pc) { #define OP(name) case name #define PO break #define END_OP } \ } #else /* * Dispatch-table based interpreter. */ #define START_OP \ start_pc = &bytecode->data[0]; \ pc = next_pc = start_pc; \ if (unlikely(pc - start_pc >= bytecode->len)) \ goto end; \ goto *dispatch[*(filter_opcode_t *) pc]; #define OP(name) \ LABEL_##name #define PO \ pc = next_pc; \ goto *dispatch[*(filter_opcode_t *) pc]; #define END_OP #endif /* * Return 0 (discard), or raise the 0x1 flag (log event). * Currently, other flags are kept for future extensions and have no * effect. */ uint64_t lttng_filter_interpret_bytecode(void *filter_data, const char *filter_stack_data) { struct bytecode_runtime *bytecode = filter_data; void *pc, *next_pc, *start_pc; int ret = -EINVAL; uint64_t retval = 0; struct estack _stack; struct estack *stack = &_stack; register int64_t ax = 0, bx = 0; register int top = FILTER_STACK_EMPTY; #ifndef INTERPRETER_USE_SWITCH static void *dispatch[NR_FILTER_OPS] = { [ FILTER_OP_UNKNOWN ] = &&LABEL_FILTER_OP_UNKNOWN, [ FILTER_OP_RETURN ] = &&LABEL_FILTER_OP_RETURN, /* binary */ [ FILTER_OP_MUL ] = &&LABEL_FILTER_OP_MUL, [ FILTER_OP_DIV ] = &&LABEL_FILTER_OP_DIV, [ FILTER_OP_MOD ] = &&LABEL_FILTER_OP_MOD, [ FILTER_OP_PLUS ] = &&LABEL_FILTER_OP_PLUS, [ FILTER_OP_MINUS ] = &&LABEL_FILTER_OP_MINUS, [ FILTER_OP_RSHIFT ] = &&LABEL_FILTER_OP_RSHIFT, [ FILTER_OP_LSHIFT ] = &&LABEL_FILTER_OP_LSHIFT, [ FILTER_OP_BIN_AND ] = &&LABEL_FILTER_OP_BIN_AND, [ FILTER_OP_BIN_OR ] = &&LABEL_FILTER_OP_BIN_OR, [ FILTER_OP_BIN_XOR ] = &&LABEL_FILTER_OP_BIN_XOR, /* binary comparators */ [ FILTER_OP_EQ ] = &&LABEL_FILTER_OP_EQ, [ FILTER_OP_NE ] = &&LABEL_FILTER_OP_NE, [ FILTER_OP_GT ] = &&LABEL_FILTER_OP_GT, [ FILTER_OP_LT ] = &&LABEL_FILTER_OP_LT, [ FILTER_OP_GE ] = &&LABEL_FILTER_OP_GE, [ FILTER_OP_LE ] = &&LABEL_FILTER_OP_LE, /* string binary comparator */ [ FILTER_OP_EQ_STRING ] = &&LABEL_FILTER_OP_EQ_STRING, [ FILTER_OP_NE_STRING ] = &&LABEL_FILTER_OP_NE_STRING, [ FILTER_OP_GT_STRING ] = &&LABEL_FILTER_OP_GT_STRING, [ FILTER_OP_LT_STRING ] = &&LABEL_FILTER_OP_LT_STRING, [ FILTER_OP_GE_STRING ] = &&LABEL_FILTER_OP_GE_STRING, [ FILTER_OP_LE_STRING ] = &&LABEL_FILTER_OP_LE_STRING, /* s64 binary comparator */ [ FILTER_OP_EQ_S64 ] = &&LABEL_FILTER_OP_EQ_S64, [ FILTER_OP_NE_S64 ] = &&LABEL_FILTER_OP_NE_S64, [ FILTER_OP_GT_S64 ] = &&LABEL_FILTER_OP_GT_S64, [ FILTER_OP_LT_S64 ] = &&LABEL_FILTER_OP_LT_S64, [ FILTER_OP_GE_S64 ] = &&LABEL_FILTER_OP_GE_S64, [ FILTER_OP_LE_S64 ] = &&LABEL_FILTER_OP_LE_S64, /* double binary comparator */ [ FILTER_OP_EQ_DOUBLE ] = &&LABEL_FILTER_OP_EQ_DOUBLE, [ FILTER_OP_NE_DOUBLE ] = &&LABEL_FILTER_OP_NE_DOUBLE, [ FILTER_OP_GT_DOUBLE ] = &&LABEL_FILTER_OP_GT_DOUBLE, [ FILTER_OP_LT_DOUBLE ] = &&LABEL_FILTER_OP_LT_DOUBLE, [ FILTER_OP_GE_DOUBLE ] = &&LABEL_FILTER_OP_GE_DOUBLE, [ FILTER_OP_LE_DOUBLE ] = &&LABEL_FILTER_OP_LE_DOUBLE, /* Mixed S64-double binary comparators */ [ FILTER_OP_EQ_DOUBLE_S64 ] = &&LABEL_FILTER_OP_EQ_DOUBLE_S64, [ FILTER_OP_NE_DOUBLE_S64 ] = &&LABEL_FILTER_OP_NE_DOUBLE_S64, [ FILTER_OP_GT_DOUBLE_S64 ] = &&LABEL_FILTER_OP_GT_DOUBLE_S64, [ FILTER_OP_LT_DOUBLE_S64 ] = &&LABEL_FILTER_OP_LT_DOUBLE_S64, [ FILTER_OP_GE_DOUBLE_S64 ] = &&LABEL_FILTER_OP_GE_DOUBLE_S64, [ FILTER_OP_LE_DOUBLE_S64 ] = &&LABEL_FILTER_OP_LE_DOUBLE_S64, [ FILTER_OP_EQ_S64_DOUBLE ] = &&LABEL_FILTER_OP_EQ_S64_DOUBLE, [ FILTER_OP_NE_S64_DOUBLE ] = &&LABEL_FILTER_OP_NE_S64_DOUBLE, [ FILTER_OP_GT_S64_DOUBLE ] = &&LABEL_FILTER_OP_GT_S64_DOUBLE, [ FILTER_OP_LT_S64_DOUBLE ] = &&LABEL_FILTER_OP_LT_S64_DOUBLE, [ FILTER_OP_GE_S64_DOUBLE ] = &&LABEL_FILTER_OP_GE_S64_DOUBLE, [ FILTER_OP_LE_S64_DOUBLE ] = &&LABEL_FILTER_OP_LE_S64_DOUBLE, /* unary */ [ FILTER_OP_UNARY_PLUS ] = &&LABEL_FILTER_OP_UNARY_PLUS, [ FILTER_OP_UNARY_MINUS ] = &&LABEL_FILTER_OP_UNARY_MINUS, [ FILTER_OP_UNARY_NOT ] = &&LABEL_FILTER_OP_UNARY_NOT, [ FILTER_OP_UNARY_PLUS_S64 ] = &&LABEL_FILTER_OP_UNARY_PLUS_S64, [ FILTER_OP_UNARY_MINUS_S64 ] = &&LABEL_FILTER_OP_UNARY_MINUS_S64, [ FILTER_OP_UNARY_NOT_S64 ] = &&LABEL_FILTER_OP_UNARY_NOT_S64, [ FILTER_OP_UNARY_PLUS_DOUBLE ] = &&LABEL_FILTER_OP_UNARY_PLUS_DOUBLE, [ FILTER_OP_UNARY_MINUS_DOUBLE ] = &&LABEL_FILTER_OP_UNARY_MINUS_DOUBLE, [ FILTER_OP_UNARY_NOT_DOUBLE ] = &&LABEL_FILTER_OP_UNARY_NOT_DOUBLE, /* logical */ [ FILTER_OP_AND ] = &&LABEL_FILTER_OP_AND, [ FILTER_OP_OR ] = &&LABEL_FILTER_OP_OR, /* load field ref */ [ FILTER_OP_LOAD_FIELD_REF ] = &&LABEL_FILTER_OP_LOAD_FIELD_REF, [ FILTER_OP_LOAD_FIELD_REF_STRING ] = &&LABEL_FILTER_OP_LOAD_FIELD_REF_STRING, [ FILTER_OP_LOAD_FIELD_REF_SEQUENCE ] = &&LABEL_FILTER_OP_LOAD_FIELD_REF_SEQUENCE, [ FILTER_OP_LOAD_FIELD_REF_S64 ] = &&LABEL_FILTER_OP_LOAD_FIELD_REF_S64, [ FILTER_OP_LOAD_FIELD_REF_DOUBLE ] = &&LABEL_FILTER_OP_LOAD_FIELD_REF_DOUBLE, /* load from immediate operand */ [ FILTER_OP_LOAD_STRING ] = &&LABEL_FILTER_OP_LOAD_STRING, [ FILTER_OP_LOAD_S64 ] = &&LABEL_FILTER_OP_LOAD_S64, [ FILTER_OP_LOAD_DOUBLE ] = &&LABEL_FILTER_OP_LOAD_DOUBLE, /* cast */ [ FILTER_OP_CAST_TO_S64 ] = &&LABEL_FILTER_OP_CAST_TO_S64, [ FILTER_OP_CAST_DOUBLE_TO_S64 ] = &&LABEL_FILTER_OP_CAST_DOUBLE_TO_S64, [ FILTER_OP_CAST_NOP ] = &&LABEL_FILTER_OP_CAST_NOP, /* get context ref */ [ FILTER_OP_GET_CONTEXT_REF ] = &&LABEL_FILTER_OP_GET_CONTEXT_REF, [ FILTER_OP_GET_CONTEXT_REF_STRING ] = &&LABEL_FILTER_OP_GET_CONTEXT_REF_STRING, [ FILTER_OP_GET_CONTEXT_REF_S64 ] = &&LABEL_FILTER_OP_GET_CONTEXT_REF_S64, [ FILTER_OP_GET_CONTEXT_REF_DOUBLE ] = &&LABEL_FILTER_OP_GET_CONTEXT_REF_DOUBLE, }; #endif /* #ifndef INTERPRETER_USE_SWITCH */ START_OP OP(FILTER_OP_UNKNOWN): OP(FILTER_OP_LOAD_FIELD_REF): OP(FILTER_OP_GET_CONTEXT_REF): #ifdef INTERPRETER_USE_SWITCH default: #endif /* INTERPRETER_USE_SWITCH */ ERR("unknown bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; OP(FILTER_OP_RETURN): /* LTTNG_FILTER_DISCARD or LTTNG_FILTER_RECORD_FLAG */ retval = !!estack_ax_v; ret = 0; goto end; /* binary */ OP(FILTER_OP_MUL): OP(FILTER_OP_DIV): OP(FILTER_OP_MOD): OP(FILTER_OP_PLUS): OP(FILTER_OP_MINUS): OP(FILTER_OP_RSHIFT): OP(FILTER_OP_LSHIFT): OP(FILTER_OP_BIN_AND): OP(FILTER_OP_BIN_OR): OP(FILTER_OP_BIN_XOR): ERR("unsupported bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; OP(FILTER_OP_EQ): OP(FILTER_OP_NE): OP(FILTER_OP_GT): OP(FILTER_OP_LT): OP(FILTER_OP_GE): OP(FILTER_OP_LE): ERR("unsupported non-specialized bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; OP(FILTER_OP_EQ_STRING): { int res; res = (stack_strcmp(stack, top, "==") == 0); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_NE_STRING): { int res; res = (stack_strcmp(stack, top, "!=") != 0); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GT_STRING): { int res; res = (stack_strcmp(stack, top, ">") > 0); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LT_STRING): { int res; res = (stack_strcmp(stack, top, "<") < 0); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GE_STRING): { int res; res = (stack_strcmp(stack, top, ">=") >= 0); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LE_STRING): { int res; res = (stack_strcmp(stack, top, "<=") <= 0); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_EQ_S64): { int res; res = (estack_bx_v == estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_NE_S64): { int res; res = (estack_bx_v != estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GT_S64): { int res; res = (estack_bx_v > estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LT_S64): { int res; res = (estack_bx_v < estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GE_S64): { int res; res = (estack_bx_v >= estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LE_S64): { int res; res = (estack_bx_v <= estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_EQ_DOUBLE): { int res; res = (estack_bx(stack, top)->u.d == estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_NE_DOUBLE): { int res; res = (estack_bx(stack, top)->u.d != estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GT_DOUBLE): { int res; res = (estack_bx(stack, top)->u.d > estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LT_DOUBLE): { int res; res = (estack_bx(stack, top)->u.d < estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GE_DOUBLE): { int res; res = (estack_bx(stack, top)->u.d >= estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LE_DOUBLE): { int res; res = (estack_bx(stack, top)->u.d <= estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } /* Mixed S64-double binary comparators */ OP(FILTER_OP_EQ_DOUBLE_S64): { int res; res = (estack_bx(stack, top)->u.d == estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_NE_DOUBLE_S64): { int res; res = (estack_bx(stack, top)->u.d != estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GT_DOUBLE_S64): { int res; res = (estack_bx(stack, top)->u.d > estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LT_DOUBLE_S64): { int res; res = (estack_bx(stack, top)->u.d < estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GE_DOUBLE_S64): { int res; res = (estack_bx(stack, top)->u.d >= estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LE_DOUBLE_S64): { int res; res = (estack_bx(stack, top)->u.d <= estack_ax_v); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_EQ_S64_DOUBLE): { int res; res = (estack_bx_v == estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_NE_S64_DOUBLE): { int res; res = (estack_bx_v != estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GT_S64_DOUBLE): { int res; res = (estack_bx_v > estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LT_S64_DOUBLE): { int res; res = (estack_bx_v < estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_GE_S64_DOUBLE): { int res; res = (estack_bx_v >= estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } OP(FILTER_OP_LE_S64_DOUBLE): { int res; res = (estack_bx_v <= estack_ax(stack, top)->u.d); estack_pop(stack, top, ax, bx); estack_ax_v = res; next_pc += sizeof(struct binary_op); PO; } /* unary */ OP(FILTER_OP_UNARY_PLUS): OP(FILTER_OP_UNARY_MINUS): OP(FILTER_OP_UNARY_NOT): ERR("unsupported non-specialized bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; OP(FILTER_OP_UNARY_PLUS_S64): OP(FILTER_OP_UNARY_PLUS_DOUBLE): { next_pc += sizeof(struct unary_op); PO; } OP(FILTER_OP_UNARY_MINUS_S64): { estack_ax_v = -estack_ax_v; next_pc += sizeof(struct unary_op); PO; } OP(FILTER_OP_UNARY_MINUS_DOUBLE): { estack_ax(stack, top)->u.d = -estack_ax(stack, top)->u.d; next_pc += sizeof(struct unary_op); PO; } OP(FILTER_OP_UNARY_NOT_S64): { estack_ax_v = !estack_ax_v; next_pc += sizeof(struct unary_op); PO; } OP(FILTER_OP_UNARY_NOT_DOUBLE): { estack_ax(stack, top)->u.d = !estack_ax(stack, top)->u.d; next_pc += sizeof(struct unary_op); PO; } /* logical */ OP(FILTER_OP_AND): { struct logical_op *insn = (struct logical_op *) pc; /* If AX is 0, skip and evaluate to 0 */ if (unlikely(estack_ax_v == 0)) { dbg_printf("Jumping to bytecode offset %u\n", (unsigned int) insn->skip_offset); next_pc = start_pc + insn->skip_offset; } else { /* Pop 1 when jump not taken */ estack_pop(stack, top, ax, bx); next_pc += sizeof(struct logical_op); } PO; } OP(FILTER_OP_OR): { struct logical_op *insn = (struct logical_op *) pc; /* If AX is nonzero, skip and evaluate to 1 */ if (unlikely(estack_ax_v != 0)) { estack_ax_v = 1; dbg_printf("Jumping to bytecode offset %u\n", (unsigned int) insn->skip_offset); next_pc = start_pc + insn->skip_offset; } else { /* Pop 1 when jump not taken */ estack_pop(stack, top, ax, bx); next_pc += sizeof(struct logical_op); } PO; } /* load field ref */ OP(FILTER_OP_LOAD_FIELD_REF_STRING): { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("load field ref offset %u type string\n", ref->offset); estack_push(stack, top, ax, bx); estack_ax(stack, top)->u.s.str = *(const char * const *) &filter_stack_data[ref->offset]; if (unlikely(!estack_ax(stack, top)->u.s.str)) { dbg_printf("Filter warning: loading a NULL string.\n"); ret = -EINVAL; goto end; } estack_ax(stack, top)->u.s.seq_len = UINT_MAX; estack_ax(stack, top)->u.s.literal = 0; dbg_printf("ref load string %s\n", estack_ax(stack, top)->u.s.str); next_pc += sizeof(struct load_op) + sizeof(struct field_ref); PO; } OP(FILTER_OP_LOAD_FIELD_REF_SEQUENCE): { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("load field ref offset %u type sequence\n", ref->offset); estack_push(stack, top, ax, bx); estack_ax(stack, top)->u.s.seq_len = *(unsigned long *) &filter_stack_data[ref->offset]; estack_ax(stack, top)->u.s.str = *(const char **) (&filter_stack_data[ref->offset + sizeof(unsigned long)]); if (unlikely(!estack_ax(stack, top)->u.s.str)) { dbg_printf("Filter warning: loading a NULL sequence.\n"); ret = -EINVAL; goto end; } estack_ax(stack, top)->u.s.literal = 0; next_pc += sizeof(struct load_op) + sizeof(struct field_ref); PO; } OP(FILTER_OP_LOAD_FIELD_REF_S64): { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("load field ref offset %u type s64\n", ref->offset); estack_push(stack, top, ax, bx); estack_ax_v = ((struct literal_numeric *) &filter_stack_data[ref->offset])->v; dbg_printf("ref load s64 %" PRIi64 "\n", estack_ax_v); next_pc += sizeof(struct load_op) + sizeof(struct field_ref); PO; } OP(FILTER_OP_LOAD_FIELD_REF_DOUBLE): { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("load field ref offset %u type double\n", ref->offset); estack_push(stack, top, ax, bx); memcpy(&estack_ax(stack, top)->u.d, &filter_stack_data[ref->offset], sizeof(struct literal_double)); dbg_printf("ref load double %g\n", estack_ax(stack, top)->u.d); next_pc += sizeof(struct load_op) + sizeof(struct field_ref); PO; } /* load from immediate operand */ OP(FILTER_OP_LOAD_STRING): { struct load_op *insn = (struct load_op *) pc; dbg_printf("load string %s\n", insn->data); estack_push(stack, top, ax, bx); estack_ax(stack, top)->u.s.str = insn->data; estack_ax(stack, top)->u.s.seq_len = UINT_MAX; estack_ax(stack, top)->u.s.literal = 1; next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; PO; } OP(FILTER_OP_LOAD_S64): { struct load_op *insn = (struct load_op *) pc; estack_push(stack, top, ax, bx); estack_ax_v = ((struct literal_numeric *) insn->data)->v; dbg_printf("load s64 %" PRIi64 "\n", estack_ax_v); next_pc += sizeof(struct load_op) + sizeof(struct literal_numeric); PO; } OP(FILTER_OP_LOAD_DOUBLE): { struct load_op *insn = (struct load_op *) pc; estack_push(stack, top, ax, bx); memcpy(&estack_ax(stack, top)->u.d, insn->data, sizeof(struct literal_double)); dbg_printf("load s64 %g\n", estack_ax(stack, top)->u.d); next_pc += sizeof(struct load_op) + sizeof(struct literal_double); PO; } /* cast */ OP(FILTER_OP_CAST_TO_S64): ERR("unsupported non-specialized bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; OP(FILTER_OP_CAST_DOUBLE_TO_S64): { estack_ax_v = (int64_t) estack_ax(stack, top)->u.d; next_pc += sizeof(struct cast_op); PO; } OP(FILTER_OP_CAST_NOP): { next_pc += sizeof(struct cast_op); PO; } /* get context ref */ OP(FILTER_OP_GET_CONTEXT_REF_STRING): { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; struct lttng_ctx_field *ctx_field; union lttng_ctx_value v; dbg_printf("get context ref offset %u type string\n", ref->offset); ctx_field = <tng_static_ctx->fields[ref->offset]; ctx_field->get_value(ctx_field, &v); estack_push(stack, top, ax, bx); estack_ax(stack, top)->u.s.str = v.str; if (unlikely(!estack_ax(stack, top)->u.s.str)) { dbg_printf("Filter warning: loading a NULL string.\n"); ret = -EINVAL; goto end; } estack_ax(stack, top)->u.s.seq_len = UINT_MAX; estack_ax(stack, top)->u.s.literal = 0; dbg_printf("ref get context string %s\n", estack_ax(stack, top)->u.s.str); next_pc += sizeof(struct load_op) + sizeof(struct field_ref); PO; } OP(FILTER_OP_GET_CONTEXT_REF_S64): { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; struct lttng_ctx_field *ctx_field; union lttng_ctx_value v; dbg_printf("get context ref offset %u type s64\n", ref->offset); ctx_field = <tng_static_ctx->fields[ref->offset]; ctx_field->get_value(ctx_field, &v); estack_push(stack, top, ax, bx); estack_ax_v = v.s64; dbg_printf("ref get context s64 %" PRIi64 "\n", estack_ax_v); next_pc += sizeof(struct load_op) + sizeof(struct field_ref); PO; } OP(FILTER_OP_GET_CONTEXT_REF_DOUBLE): { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; struct lttng_ctx_field *ctx_field; union lttng_ctx_value v; dbg_printf("get context ref offset %u type double\n", ref->offset); ctx_field = <tng_static_ctx->fields[ref->offset]; ctx_field->get_value(ctx_field, &v); estack_push(stack, top, ax, bx); memcpy(&estack_ax(stack, top)->u.d, &v.d, sizeof(struct literal_double)); dbg_printf("ref get context double %g\n", estack_ax(stack, top)->u.d); next_pc += sizeof(struct load_op) + sizeof(struct field_ref); PO; } END_OP end: /* return 0 (discard) on error */ if (ret) return 0; return retval; } #undef START_OP #undef OP #undef PO #undef END_OP lttng-ust-2.4.0/liblttng-ust/lttng-rb-clients.h0000644000175000017500000000353512304151532016372 00000000000000#ifndef _LTTNG_RB_CLIENT_H #define _LTTNG_RB_CLIENT_H /* * Copyright (c) 2013 - Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ struct lttng_ust_client_lib_ring_buffer_client_cb { struct lttng_ust_lib_ring_buffer_client_cb parent; int (*timestamp_begin) (struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *timestamp_begin); int (*timestamp_end) (struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *timestamp_end); int (*events_discarded) (struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *events_discarded); int (*content_size) (struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *content_size); int (*packet_size) (struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *packet_size); int (*stream_id) (struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *stream_id); int (*current_timestamp) (struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *ts); }; #endif /* _LTTNG_RB_CLIENT_H */ lttng-ust-2.4.0/liblttng-ust/Makefile.in0000644000175000017500000006527012304153125015102 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in 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 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[3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: lttng-ust-2.4.0/liblttng-ust/lttng-ust-baddr.c0000644000175000017500000001226012304151532016203 00000000000000/* * Copyright (C) 2013 Paul Woegerer * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _LGPL_SOURCE #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include "lttng-tracer-core.h" #include "lttng-ust-baddr.h" #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #define TP_SESSION_CHECK #include "ust_baddr_statedump.h" struct extract_data { void *owner; void *exec_baddr; /* executable base address */ }; /* * Trace baddr into all sessions for which statedump is pending owned by * the caller thread. */ static int trace_baddr(void *base_addr_ptr, const char *resolved_path, int vdso, void *owner) { struct cds_list_head *sessionsp; struct lttng_session *session; struct stat sostat; if (vdso || stat(resolved_path, &sostat)) { sostat.st_size = 0; sostat.st_mtime = -1; } /* * UST lock nests within dynamic loader lock. */ if (ust_lock()) { /* * Stop iteration on headers if need to exit. */ ust_unlock(); return 1; } sessionsp = _lttng_get_sessions(); cds_list_for_each_entry(session, sessionsp, node) { if (session->owner != owner) continue; if (!session->statedump_pending) continue; tracepoint(ust_baddr_statedump, soinfo, session, base_addr_ptr, resolved_path, sostat.st_size, sostat.st_mtime); } ust_unlock(); return 0; } static int extract_soinfo_events(struct dl_phdr_info *info, size_t size, void *_data) { int j; struct extract_data *data = _data; void *owner = data->owner; for (j = 0; j < info->dlpi_phnum; j++) { char resolved_path[PATH_MAX]; void *base_addr_ptr; int vdso = 0; if (info->dlpi_phdr[j].p_type != PT_LOAD) continue; /* Calculate virtual memory address of the loadable segment */ base_addr_ptr = (void *) info->dlpi_addr + info->dlpi_phdr[j].p_vaddr; if ((info->dlpi_name == NULL || info->dlpi_name[0] == 0) && !data->exec_baddr) { /* * Only the first phdr encountered is considered * as the program executable. The following * could be e.g. vdso. Don't mistakenly dump * them as being the program executable. */ data->exec_baddr = base_addr_ptr; /* * Deal with program executable outside of phdr * iteration. */ break; } if (info->dlpi_name == NULL || info->dlpi_name[0] == 0) { /* Found vDSO. */ snprintf(resolved_path, PATH_MAX - 1, "[vdso]"); vdso = 1; } else { /* * For regular dl_phdr_info entries we have to check if * the path to the shared object really exists. */ if (!realpath(info->dlpi_name, resolved_path)) { /* Path unknown, put the 'path' into brackets */ snprintf(resolved_path, PATH_MAX - 1, "[%s]", info->dlpi_name); vdso = 1; } } if (trace_baddr(base_addr_ptr, resolved_path, vdso, owner)) { return 1; } /* * We are only interested in the base address (lowest virtual * address associated with the memory image), skip the rest */ break; } return 0; } static void dump_exec_baddr(struct extract_data *data) { void *owner = data->owner; void *base_addr_ptr; char exe_path[PATH_MAX]; ssize_t exe_len; base_addr_ptr = data->exec_baddr; if (!base_addr_ptr) return; /* * We have to use /proc/self/exe to determine the executable full * path. */ exe_len = readlink("/proc/self/exe", exe_path, sizeof(exe_path) - 1); if (exe_len <= 0) return; exe_path[exe_len] = '\0'; trace_baddr(base_addr_ptr, exe_path, 0, owner); } int lttng_ust_baddr_statedump(void *owner) { struct extract_data data; if (!getenv("LTTNG_UST_WITH_EXPERIMENTAL_BADDR_STATEDUMP")) return 0; data.owner = owner; data.exec_baddr = NULL; /* * Iterate through the list of currently loaded shared objects and * generate events for loadable segments using * extract_soinfo_events. */ dl_iterate_phdr(extract_soinfo_events, &data); /* * We cannot call dladdr() from within phdr iteration, without * causing constructor vs dynamic loader vs multithread internal * deadlocks, so dump the executable outside of the phdr * iteration. */ dump_exec_baddr(&data); return 0; } void lttng_ust_baddr_statedump_init(void) { __tracepoints__init(); __tracepoints__ptrs_init(); __lttng_events_init__ust_baddr_statedump(); } void lttng_ust_baddr_statedump_destroy(void) { __lttng_events_exit__ust_baddr_statedump(); __tracepoints__ptrs_destroy(); __tracepoints__destroy(); } lttng-ust-2.4.0/liblttng-ust/lttng-ring-buffer-metadata-client.h0000644000175000017500000002411612304151532021566 00000000000000/* * lttng-ring-buffer-client.h * * LTTng lib ring buffer client template. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "lttng/bitfield.h" #include "lttng-tracer.h" #include "../libringbuffer/frontend_types.h" struct metadata_packet_header { uint32_t magic; /* 0x75D11D57 */ uint8_t uuid[LTTNG_UST_UUID_LEN]; /* Unique Universal Identifier */ uint32_t checksum; /* 0 if unused */ uint32_t content_size; /* in bits */ uint32_t packet_size; /* in bits */ uint8_t compression_scheme; /* 0 if unused */ uint8_t encryption_scheme; /* 0 if unused */ uint8_t checksum_scheme; /* 0 if unused */ uint8_t major; /* CTF spec major version number */ uint8_t minor; /* CTF spec minor version number */ uint8_t header_end[0]; }; struct metadata_record_header { uint8_t header_end[0]; /* End of header */ }; static const struct lttng_ust_lib_ring_buffer_config client_config; static inline uint64_t lib_ring_buffer_clock_read(struct channel *chan) { return 0; } static inline unsigned char record_header_size(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, size_t offset, size_t *pre_header_padding, struct lttng_ust_lib_ring_buffer_ctx *ctx) { return 0; } #include "../libringbuffer/api.h" #include "lttng-rb-clients.h" static uint64_t client_ring_buffer_clock_read(struct channel *chan) { return 0; } static size_t client_record_header_size(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, size_t offset, size_t *pre_header_padding, struct lttng_ust_lib_ring_buffer_ctx *ctx) { return 0; } /** * client_packet_header_size - called on buffer-switch to a new sub-buffer * * Return header size without padding after the structure. Don't use packed * structure because gcc generates inefficient code on some architectures * (powerpc, mips..) */ static size_t client_packet_header_size(void) { return offsetof(struct metadata_packet_header, header_end); } static void client_buffer_begin(struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc, unsigned int subbuf_idx, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); struct metadata_packet_header *header = (struct metadata_packet_header *) lib_ring_buffer_offset_address(&buf->backend, subbuf_idx * chan->backend.subbuf_size, handle); struct lttng_channel *lttng_chan = channel_get_private(chan); header->magic = TSDL_MAGIC_NUMBER; memcpy(header->uuid, lttng_chan->uuid, sizeof(lttng_chan->uuid)); header->checksum = 0; /* 0 if unused */ header->content_size = 0xFFFFFFFF; /* in bits, for debugging */ header->packet_size = 0xFFFFFFFF; /* in bits, for debugging */ header->compression_scheme = 0; /* 0 if unused */ header->encryption_scheme = 0; /* 0 if unused */ header->checksum_scheme = 0; /* 0 if unused */ header->major = CTF_SPEC_MAJOR; header->minor = CTF_SPEC_MINOR; } /* * offset is assumed to never be 0 here : never deliver a completely empty * subbuffer. data_size is between 1 and subbuf_size. */ static void client_buffer_end(struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc, unsigned int subbuf_idx, unsigned long data_size, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); struct metadata_packet_header *header = (struct metadata_packet_header *) lib_ring_buffer_offset_address(&buf->backend, subbuf_idx * chan->backend.subbuf_size, handle); unsigned long records_lost = 0; header->content_size = data_size * CHAR_BIT; /* in bits */ header->packet_size = PAGE_ALIGN(data_size) * CHAR_BIT; /* in bits */ /* * We do not care about the records lost count, because the metadata * channel waits and retry. */ (void) lib_ring_buffer_get_records_lost_full(&client_config, buf); records_lost += lib_ring_buffer_get_records_lost_wrap(&client_config, buf); records_lost += lib_ring_buffer_get_records_lost_big(&client_config, buf); WARN_ON_ONCE(records_lost != 0); } static int client_buffer_create(struct lttng_ust_lib_ring_buffer *buf, void *priv, int cpu, const char *name, struct lttng_ust_shm_handle *handle) { return 0; } static void client_buffer_finalize(struct lttng_ust_lib_ring_buffer *buf, void *priv, int cpu, struct lttng_ust_shm_handle *handle) { } static const struct lttng_ust_client_lib_ring_buffer_client_cb client_cb = { .parent = { .ring_buffer_clock_read = client_ring_buffer_clock_read, .record_header_size = client_record_header_size, .subbuffer_header_size = client_packet_header_size, .buffer_begin = client_buffer_begin, .buffer_end = client_buffer_end, .buffer_create = client_buffer_create, .buffer_finalize = client_buffer_finalize, }, }; static const struct lttng_ust_lib_ring_buffer_config client_config = { .cb.ring_buffer_clock_read = client_ring_buffer_clock_read, .cb.record_header_size = client_record_header_size, .cb.subbuffer_header_size = client_packet_header_size, .cb.buffer_begin = client_buffer_begin, .cb.buffer_end = client_buffer_end, .cb.buffer_create = client_buffer_create, .cb.buffer_finalize = client_buffer_finalize, .tsc_bits = 0, .alloc = RING_BUFFER_ALLOC_GLOBAL, .sync = RING_BUFFER_SYNC_GLOBAL, .mode = RING_BUFFER_MODE_TEMPLATE, .backend = RING_BUFFER_PAGE, .output = RING_BUFFER_MMAP, .oops = RING_BUFFER_OOPS_CONSISTENCY, .ipi = RING_BUFFER_NO_IPI_BARRIER, .wakeup = RING_BUFFER_WAKEUP_BY_WRITER, .client_type = LTTNG_CLIENT_TYPE, .cb_ptr = &client_cb.parent, }; const struct lttng_ust_client_lib_ring_buffer_client_cb *LTTNG_CLIENT_CALLBACKS = &client_cb; static struct lttng_channel *_channel_create(const char *name, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval, unsigned char *uuid, uint32_t chan_id) { struct lttng_channel chan_priv_init; struct lttng_ust_shm_handle *handle; struct lttng_channel *lttng_chan; void *priv; memset(&chan_priv_init, 0, sizeof(chan_priv_init)); memcpy(chan_priv_init.uuid, uuid, LTTNG_UST_UUID_LEN); chan_priv_init.id = chan_id; handle = channel_create(&client_config, name, &priv, __alignof__(struct lttng_channel), sizeof(struct lttng_channel), &chan_priv_init, buf_addr, subbuf_size, num_subbuf, switch_timer_interval, read_timer_interval); if (!handle) return NULL; lttng_chan = priv; lttng_chan->handle = handle; lttng_chan->chan = shmp(handle, handle->chan); return lttng_chan; } static void lttng_channel_destroy(struct lttng_channel *chan) { channel_destroy(chan->chan, chan->handle, 1); } static int lttng_event_reserve(struct lttng_ust_lib_ring_buffer_ctx *ctx, uint32_t event_id) { return lib_ring_buffer_reserve(&client_config, ctx); } static void lttng_event_commit(struct lttng_ust_lib_ring_buffer_ctx *ctx) { lib_ring_buffer_commit(&client_config, ctx); } static void lttng_event_write(struct lttng_ust_lib_ring_buffer_ctx *ctx, const void *src, size_t len) { lib_ring_buffer_write(&client_config, ctx, src, len); } static size_t lttng_packet_avail_size(struct channel *chan, struct lttng_ust_shm_handle *handle) { unsigned long o_begin; struct lttng_ust_lib_ring_buffer *buf; buf = shmp(handle, chan->backend.buf[0].shmp); /* Only for global buffer ! */ o_begin = v_read(&client_config, &buf->offset); if (subbuf_offset(o_begin, chan) != 0) { return chan->backend.subbuf_size - subbuf_offset(o_begin, chan); } else { return chan->backend.subbuf_size - subbuf_offset(o_begin, chan) - sizeof(struct metadata_packet_header); } } #if 0 static wait_queue_head_t *lttng_get_reader_wait_queue(struct channel *chan) { return &chan->read_wait; } static wait_queue_head_t *lttng_get_hp_wait_queue(struct channel *chan) { return &chan->hp_wait; } #endif //0 static int lttng_is_finalized(struct channel *chan) { return lib_ring_buffer_channel_is_finalized(chan); } static int lttng_is_disabled(struct channel *chan) { return lib_ring_buffer_channel_is_disabled(chan); } static int lttng_flush_buffer(struct channel *chan, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer *buf; int shm_fd, wait_fd, wakeup_fd; uint64_t memory_map_size; buf = channel_get_ring_buffer(&client_config, chan, 0, handle, &shm_fd, &wait_fd, &wakeup_fd, &memory_map_size); lib_ring_buffer_switch(&client_config, buf, SWITCH_ACTIVE, handle); return 0; } static struct lttng_transport lttng_relay_transport = { .name = "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap", .ops = { .channel_create = _channel_create, .channel_destroy = lttng_channel_destroy, .event_reserve = lttng_event_reserve, .event_commit = lttng_event_commit, .event_write = lttng_event_write, .packet_avail_size = lttng_packet_avail_size, //.get_reader_wait_queue = lttng_get_reader_wait_queue, //.get_hp_wait_queue = lttng_get_hp_wait_queue, .is_finalized = lttng_is_finalized, .is_disabled = lttng_is_disabled, .flush_buffer = lttng_flush_buffer, }, .client_config = &client_config, }; void RING_BUFFER_MODE_TEMPLATE_INIT(void) { DBG("LTT : ltt ring buffer client \"%s\" init\n", "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap"); lttng_transport_register(<tng_relay_transport); } void RING_BUFFER_MODE_TEMPLATE_EXIT(void) { DBG("LTT : ltt ring buffer client \"%s\" exit\n", "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap"); lttng_transport_unregister(<tng_relay_transport); } lttng-ust-2.4.0/liblttng-ust/tracepoint-internal.h0000644000175000017500000000337412275157353017203 00000000000000#ifndef _LTTNG_TRACEPOINT_INTERNAL_H #define _LTTNG_TRACEPOINT_INTERNAL_H /* * Copyright (c) 2011 - Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #define TRACE_DEFAULT TRACE_DEBUG_LINE struct tracepoint_lib { struct cds_list_head list; /* list of registered libs */ struct tracepoint * const *tracepoints_start; int tracepoints_count; struct cds_list_head callsites; }; extern int tracepoint_probe_register_noupdate(const char *name, void (*callback)(void), void *priv, const char *signature); extern int tracepoint_probe_unregister_noupdate(const char *name, void (*callback)(void), void *priv); extern void tracepoint_probe_update_all(void); /* * call after disconnection of last probe implemented within a * shared object before unmapping the library that contains the probe. */ static inline void tracepoint_synchronize_unregister(void) { synchronize_rcu_bp(); } extern void init_tracepoint(void); extern void exit_tracepoint(void); #endif /* _LTTNG_TRACEPOINT_INTERNAL_H */ lttng-ust-2.4.0/liblttng-ust/lttng-tracer-core.h0000644000175000017500000000312512304151532016531 00000000000000#ifndef _LTTNG_TRACER_CORE_H #define _LTTNG_TRACER_CORE_H /* * Copyright (C) 2005-2011 Mathieu Desnoyers * * This contains the core definitions for the Linux Trace Toolkit. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include struct lttng_session; struct lttng_channel; struct lttng_event; int ust_lock(void) __attribute__ ((warn_unused_result)); void ust_lock_nocheck(void); void ust_unlock(void); void lttng_fixup_event_tls(void); void lttng_fixup_vtid_tls(void); void lttng_fixup_procname_tls(void); const char *lttng_ust_obj_get_name(int id); int lttng_get_notify_socket(void *owner); void lttng_ust_sockinfo_session_enabled(void *owner); void lttng_ust_malloc_wrapper_init(void); #endif /* _LTTNG_TRACER_CORE_H */ lttng-ust-2.4.0/liblttng-ust/lttng-ring-buffer-metadata-client.c0000644000175000017500000000250612200722032021552 00000000000000/* * lttng-ring-buffer-metadata-client.c * * LTTng lib ring buffer metadta client. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include "lttng-tracer.h" #define RING_BUFFER_MODE_TEMPLATE RING_BUFFER_DISCARD #define RING_BUFFER_MODE_TEMPLATE_STRING "metadata" #define RING_BUFFER_MODE_TEMPLATE_INIT \ lttng_ring_buffer_metadata_client_init #define RING_BUFFER_MODE_TEMPLATE_EXIT \ lttng_ring_buffer_metadata_client_exit #define LTTNG_CLIENT_TYPE LTTNG_CLIENT_METADATA #define LTTNG_CLIENT_CALLBACKS lttng_client_callbacks_metadata #include "lttng-ring-buffer-metadata-client.h" lttng-ust-2.4.0/liblttng-ust/error.h0000644000175000017500000000242311714574014014336 00000000000000#ifndef _LTTNG_ERROR_H #define _LTTNG_ERROR_H /* * Copyright (c) 2011 - Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #define MAX_ERRNO 4095 static inline int IS_ERR_VALUE(long value) { if (caa_unlikely((unsigned long) value >= (unsigned long) -MAX_ERRNO)) return 1; else return 0; } static inline void *ERR_PTR(long error) { return (void *) error; } static inline long PTR_ERR(const void *ptr) { return (long) ptr; } static inline int IS_ERR(const void *ptr) { return IS_ERR_VALUE((long) ptr); } #endif /* _LTTNG_ERROR_H */ lttng-ust-2.4.0/liblttng-ust/lttng-tracer.h0000644000175000017500000000303712200722032015577 00000000000000#ifndef _LTTNG_TRACER_H #define _LTTNG_TRACER_H /* * Copyright (C) 2005-2011 Mathieu Desnoyers * * This contains the definitions for the Linux Trace Toolkit tracer. * * Ported to userspace by Pierre-Marc Fournier. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include "lttng-tracer-core.h" #include "compat.h" /* Tracer properties */ #define CTF_MAGIC_NUMBER 0xC1FC1FC1 #define TSDL_MAGIC_NUMBER 0x75D11D57 /* CTF specification version followed */ #define CTF_SPEC_MAJOR 1 #define CTF_SPEC_MINOR 8 /* * Number of milliseconds to retry before failing metadata writes on buffer full * condition. (10 seconds) */ #define LTTNG_METADATA_TIMEOUT_MSEC 10000 #define LTTNG_RFLAG_EXTENDED RING_BUFFER_RFLAG_END #define LTTNG_RFLAG_END (LTTNG_RFLAG_EXTENDED << 1) #endif /* _LTTNG_TRACER_H */ lttng-ust-2.4.0/liblttng-ust/lttng-events.c0000644000175000017500000005452012304151532015627 00000000000000/* * lttng-events.c * * Holds LTTng per-session event registry. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include "clock.h" #include #include #include #include #include #include #include #include #include #include #include "error.h" #include "compat.h" #include "lttng-ust-uuid.h" #include "tracepoint-internal.h" #include "lttng-tracer.h" #include "lttng-tracer-core.h" #include "lttng-ust-baddr.h" #include "wait.h" #include "../libringbuffer/shm.h" #include "jhash.h" /* * All operations within this file are called by the communication * thread, under ust_lock protection. */ static CDS_LIST_HEAD(sessions); struct cds_list_head *_lttng_get_sessions(void) { return &sessions; } static void _lttng_event_destroy(struct lttng_event *event); static void lttng_session_lazy_sync_enablers(struct lttng_session *session); static void lttng_session_sync_enablers(struct lttng_session *session); static void lttng_enabler_destroy(struct lttng_enabler *enabler); /* * Called with ust lock held. */ int lttng_session_active(void) { struct lttng_session *iter; cds_list_for_each_entry(iter, &sessions, node) { if (iter->active) return 1; } return 0; } static int lttng_loglevel_match(int loglevel, unsigned int has_loglevel, enum lttng_ust_loglevel_type req_type, int req_loglevel) { if (!has_loglevel) loglevel = TRACE_DEFAULT; switch (req_type) { case LTTNG_UST_LOGLEVEL_RANGE: if (loglevel <= req_loglevel || req_loglevel == -1) return 1; else return 0; case LTTNG_UST_LOGLEVEL_SINGLE: if (loglevel == req_loglevel || req_loglevel == -1) return 1; else return 0; case LTTNG_UST_LOGLEVEL_ALL: default: return 1; } } void synchronize_trace(void) { synchronize_rcu(); } struct lttng_session *lttng_session_create(void) { struct lttng_session *session; int i; session = zmalloc(sizeof(struct lttng_session)); if (!session) return NULL; CDS_INIT_LIST_HEAD(&session->chan_head); CDS_INIT_LIST_HEAD(&session->events_head); CDS_INIT_LIST_HEAD(&session->enablers_head); for (i = 0; i < LTTNG_UST_EVENT_HT_SIZE; i++) CDS_INIT_HLIST_HEAD(&session->events_ht.table[i]); cds_list_add(&session->node, &sessions); return session; } /* * Only used internally at session destruction. */ static void _lttng_channel_unmap(struct lttng_channel *lttng_chan) { struct channel *chan; struct lttng_ust_shm_handle *handle; cds_list_del(<tng_chan->node); lttng_destroy_context(lttng_chan->ctx); chan = lttng_chan->chan; handle = lttng_chan->handle; /* * note: lttng_chan is private data contained within handle. It * will be freed along with the handle. */ channel_destroy(chan, handle, 0); } static void register_event(struct lttng_event *event) { int ret; const struct lttng_event_desc *desc; assert(event->registered == 0); desc = event->desc; ret = __tracepoint_probe_register(desc->name, desc->probe_callback, event, desc->signature); WARN_ON_ONCE(ret); if (!ret) event->registered = 1; } static void unregister_event(struct lttng_event *event) { int ret; const struct lttng_event_desc *desc; assert(event->registered == 1); desc = event->desc; ret = __tracepoint_probe_unregister(desc->name, desc->probe_callback, event); WARN_ON_ONCE(ret); if (!ret) event->registered = 0; } /* * Only used internally at session destruction. */ static void _lttng_event_unregister(struct lttng_event *event) { if (event->registered) unregister_event(event); } void lttng_session_destroy(struct lttng_session *session) { struct lttng_channel *chan, *tmpchan; struct lttng_event *event, *tmpevent; struct lttng_enabler *enabler, *tmpenabler; CMM_ACCESS_ONCE(session->active) = 0; cds_list_for_each_entry(event, &session->events_head, node) { _lttng_event_unregister(event); } synchronize_trace(); /* Wait for in-flight events to complete */ cds_list_for_each_entry_safe(enabler, tmpenabler, &session->enablers_head, node) lttng_enabler_destroy(enabler); cds_list_for_each_entry_safe(event, tmpevent, &session->events_head, node) _lttng_event_destroy(event); cds_list_for_each_entry_safe(chan, tmpchan, &session->chan_head, node) _lttng_channel_unmap(chan); cds_list_del(&session->node); free(session); } int lttng_session_enable(struct lttng_session *session) { int ret = 0; struct lttng_channel *chan; int notify_socket; if (session->active) { ret = -EBUSY; goto end; } notify_socket = lttng_get_notify_socket(session->owner); if (notify_socket < 0) return notify_socket; /* Set transient enabler state to "enabled" */ session->tstate = 1; /* We need to sync enablers with session before activation. */ lttng_session_sync_enablers(session); /* * Snapshot the number of events per channel to know the type of header * we need to use. */ cds_list_for_each_entry(chan, &session->chan_head, node) { const struct lttng_ctx *ctx; const struct lttng_ctx_field *fields = NULL; size_t nr_fields = 0; uint32_t chan_id; /* don't change it if session stop/restart */ if (chan->header_type) continue; ctx = chan->ctx; if (ctx) { nr_fields = ctx->nr_fields; fields = ctx->fields; } ret = ustcomm_register_channel(notify_socket, session->objd, chan->objd, nr_fields, fields, &chan_id, &chan->header_type); if (ret) { DBG("Error (%d) registering channel to sessiond", ret); return ret; } if (chan_id != chan->id) { DBG("Error: channel registration id (%u) does not match id assigned at creation (%u)", chan_id, chan->id); return -EINVAL; } } /* Set atomically the state to "active" */ CMM_ACCESS_ONCE(session->active) = 1; CMM_ACCESS_ONCE(session->been_active) = 1; session->statedump_pending = 1; lttng_ust_sockinfo_session_enabled(session->owner); end: return ret; } int lttng_session_disable(struct lttng_session *session) { int ret = 0; if (!session->active) { ret = -EBUSY; goto end; } /* Set atomically the state to "inactive" */ CMM_ACCESS_ONCE(session->active) = 0; /* Set transient enabler state to "disabled" */ session->tstate = 0; lttng_session_sync_enablers(session); end: return ret; } int lttng_channel_enable(struct lttng_channel *channel) { int ret = 0; if (channel->enabled) { ret = -EBUSY; goto end; } /* Set transient enabler state to "enabled" */ channel->tstate = 1; lttng_session_sync_enablers(channel->session); /* Set atomically the state to "enabled" */ CMM_ACCESS_ONCE(channel->enabled) = 1; end: return ret; } int lttng_channel_disable(struct lttng_channel *channel) { int ret = 0; if (!channel->enabled) { ret = -EBUSY; goto end; } /* Set atomically the state to "disabled" */ CMM_ACCESS_ONCE(channel->enabled) = 0; /* Set transient enabler state to "enabled" */ channel->tstate = 0; lttng_session_sync_enablers(channel->session); end: return ret; } /* * Supports event creation while tracing session is active. */ static int lttng_event_create(const struct lttng_event_desc *desc, struct lttng_channel *chan) { const char *event_name = desc->name; struct lttng_event *event; struct lttng_session *session = chan->session; struct cds_hlist_head *head; struct cds_hlist_node *node; int ret = 0; size_t name_len = strlen(event_name); uint32_t hash; int notify_socket, loglevel; const char *uri; hash = jhash(event_name, name_len, 0); head = &chan->session->events_ht.table[hash & (LTTNG_UST_EVENT_HT_SIZE - 1)]; cds_hlist_for_each_entry(event, node, head, hlist) { assert(event->desc); if (!strncmp(event->desc->name, desc->name, LTTNG_UST_SYM_NAME_LEN - 1) && chan == event->chan) { ret = -EEXIST; goto exist; } } notify_socket = lttng_get_notify_socket(session->owner); if (notify_socket < 0) { ret = notify_socket; goto socket_error; } /* * Check if loglevel match. Refuse to connect event if not. */ event = zmalloc(sizeof(struct lttng_event)); if (!event) { ret = -ENOMEM; goto cache_error; } event->chan = chan; /* Event will be enabled by enabler sync. */ event->enabled = 0; event->registered = 0; CDS_INIT_LIST_HEAD(&event->bytecode_runtime_head); CDS_INIT_LIST_HEAD(&event->enablers_ref_head); event->desc = desc; if (desc->loglevel) loglevel = *(*event->desc->loglevel); else loglevel = TRACE_DEFAULT; if (desc->u.ext.model_emf_uri) uri = *(desc->u.ext.model_emf_uri); else uri = NULL; /* Fetch event ID from sessiond */ ret = ustcomm_register_event(notify_socket, session->objd, chan->objd, event_name, loglevel, desc->signature, desc->nr_fields, desc->fields, uri, &event->id); if (ret < 0) { DBG("Error (%d) registering event to sessiond", ret); goto sessiond_register_error; } /* Populate lttng_event structure before tracepoint registration. */ cmm_smp_wmb(); cds_list_add(&event->node, &chan->session->events_head); cds_hlist_add_head(&event->hlist, head); return 0; sessiond_register_error: free(event); cache_error: socket_error: exist: return ret; } static int lttng_desc_match_wildcard_enabler(const struct lttng_event_desc *desc, struct lttng_enabler *enabler) { int loglevel = 0; unsigned int has_loglevel = 0; assert(enabler->type == LTTNG_ENABLER_WILDCARD); /* Compare excluding final '*' */ if (strncmp(desc->name, enabler->event_param.name, strlen(enabler->event_param.name) - 1)) return 0; if (desc->loglevel) { loglevel = *(*desc->loglevel); has_loglevel = 1; } if (!lttng_loglevel_match(loglevel, has_loglevel, enabler->event_param.loglevel_type, enabler->event_param.loglevel)) return 0; return 1; } static int lttng_desc_match_event_enabler(const struct lttng_event_desc *desc, struct lttng_enabler *enabler) { int loglevel = 0; unsigned int has_loglevel = 0; assert(enabler->type == LTTNG_ENABLER_EVENT); if (strcmp(desc->name, enabler->event_param.name)) return 0; if (desc->loglevel) { loglevel = *(*desc->loglevel); has_loglevel = 1; } if (!lttng_loglevel_match(loglevel, has_loglevel, enabler->event_param.loglevel_type, enabler->event_param.loglevel)) return 0; return 1; } static int lttng_desc_match_enabler(const struct lttng_event_desc *desc, struct lttng_enabler *enabler) { struct lttng_ust_excluder_node *excluder; /* If event matches with an excluder, return 'does not match' */ cds_list_for_each_entry(excluder, &enabler->excluder_head, node) { int count; for (count = 0; count < excluder->excluder.count; count++) { int found, len; char *excluder_name; excluder_name = (char *) (excluder->excluder.names) + count * LTTNG_UST_SYM_NAME_LEN; len = strnlen(excluder_name, LTTNG_UST_SYM_NAME_LEN); if (len > 0 && excluder_name[len - 1] == '*') { found = !strncmp(desc->name, excluder_name, len - 1); } else { found = !strncmp(desc->name, excluder_name, LTTNG_UST_SYM_NAME_LEN - 1); } if (found) { return 0; } } } switch (enabler->type) { case LTTNG_ENABLER_WILDCARD: return lttng_desc_match_wildcard_enabler(desc, enabler); case LTTNG_ENABLER_EVENT: return lttng_desc_match_event_enabler(desc, enabler); default: return -EINVAL; } } static int lttng_event_match_enabler(struct lttng_event *event, struct lttng_enabler *enabler) { if (lttng_desc_match_enabler(event->desc, enabler) && event->chan == enabler->chan) return 1; else return 0; } static struct lttng_enabler_ref * lttng_event_enabler_ref(struct lttng_event *event, struct lttng_enabler *enabler) { struct lttng_enabler_ref *enabler_ref; cds_list_for_each_entry(enabler_ref, &event->enablers_ref_head, node) { if (enabler_ref->ref == enabler) return enabler_ref; } return NULL; } /* * Create struct lttng_event if it is missing and present in the list of * tracepoint probes. */ static void lttng_create_event_if_missing(struct lttng_enabler *enabler) { struct lttng_session *session = enabler->chan->session; struct lttng_probe_desc *probe_desc; const struct lttng_event_desc *desc; struct lttng_event *event; int i; struct cds_list_head *probe_list; probe_list = lttng_get_probe_list_head(); /* * For each probe event, if we find that a probe event matches * our enabler, create an associated lttng_event if not * already present. */ cds_list_for_each_entry(probe_desc, probe_list, head) { for (i = 0; i < probe_desc->nr_events; i++) { int found = 0, ret; struct cds_hlist_head *head; struct cds_hlist_node *node; const char *event_name; size_t name_len; uint32_t hash; desc = probe_desc->event_desc[i]; if (!lttng_desc_match_enabler(desc, enabler)) continue; event_name = desc->name; name_len = strlen(event_name); /* * Check if already created. */ hash = jhash(event_name, name_len, 0); head = &session->events_ht.table[hash & (LTTNG_UST_EVENT_HT_SIZE - 1)]; cds_hlist_for_each_entry(event, node, head, hlist) { if (event->desc == desc && event->chan == enabler->chan) found = 1; } if (found) continue; /* * We need to create an event for this * event probe. */ ret = lttng_event_create(probe_desc->event_desc[i], enabler->chan); if (ret) { DBG("Unable to create event %s, error %d\n", probe_desc->event_desc[i]->name, ret); } } } } /* * Create events associated with an enabler (if not already present), * and add backward reference from the event to the enabler. */ static int lttng_enabler_ref_events(struct lttng_enabler *enabler) { struct lttng_session *session = enabler->chan->session; struct lttng_event *event; /* First ensure that probe events are created for this enabler. */ lttng_create_event_if_missing(enabler); /* For each event matching enabler in session event list. */ cds_list_for_each_entry(event, &session->events_head, node) { struct lttng_enabler_ref *enabler_ref; if (!lttng_event_match_enabler(event, enabler)) continue; enabler_ref = lttng_event_enabler_ref(event, enabler); if (!enabler_ref) { /* * If no backward ref, create it. * Add backward ref from event to enabler. */ enabler_ref = zmalloc(sizeof(*enabler_ref)); if (!enabler_ref) return -ENOMEM; enabler_ref->ref = enabler; cds_list_add(&enabler_ref->node, &event->enablers_ref_head); } /* * Link filter bytecodes if not linked yet. */ lttng_enabler_event_link_bytecode(event, enabler); /* TODO: merge event context. */ } return 0; } /* * Called at library load: connect the probe on all enablers matching * this event. * Called with session mutex held. */ int lttng_fix_pending_events(void) { struct lttng_session *session; cds_list_for_each_entry(session, &sessions, node) { lttng_session_lazy_sync_enablers(session); } return 0; } /* * For each session of the owner thread, execute pending statedump. * Only dump state for the sessions owned by the caller thread, because * we don't keep ust_lock across the entire iteration. */ void lttng_handle_pending_statedump(void *owner) { struct lttng_session *session; /* Execute state dump */ lttng_ust_baddr_statedump(owner); /* Clear pending state dump */ if (ust_lock()) { goto end; } cds_list_for_each_entry(session, &sessions, node) { if (session->owner != owner) continue; if (!session->statedump_pending) continue; session->statedump_pending = 0; } end: ust_unlock(); return; } /* * Only used internally at session destruction. */ static void _lttng_event_destroy(struct lttng_event *event) { struct lttng_enabler_ref *enabler_ref, *tmp_enabler_ref; cds_list_del(&event->node); lttng_destroy_context(event->ctx); lttng_free_event_filter_runtime(event); /* Free event enabler refs */ cds_list_for_each_entry_safe(enabler_ref, tmp_enabler_ref, &event->enablers_ref_head, node) free(enabler_ref); free(event); } void lttng_ust_events_exit(void) { struct lttng_session *session, *tmpsession; cds_list_for_each_entry_safe(session, tmpsession, &sessions, node) lttng_session_destroy(session); } /* * Enabler management. */ struct lttng_enabler *lttng_enabler_create(enum lttng_enabler_type type, struct lttng_ust_event *event_param, struct lttng_channel *chan) { struct lttng_enabler *enabler; enabler = zmalloc(sizeof(*enabler)); if (!enabler) return NULL; enabler->type = type; CDS_INIT_LIST_HEAD(&enabler->filter_bytecode_head); CDS_INIT_LIST_HEAD(&enabler->excluder_head); memcpy(&enabler->event_param, event_param, sizeof(enabler->event_param)); enabler->chan = chan; /* ctx left NULL */ enabler->enabled = 1; cds_list_add(&enabler->node, &enabler->chan->session->enablers_head); lttng_session_lazy_sync_enablers(enabler->chan->session); return enabler; } int lttng_enabler_enable(struct lttng_enabler *enabler) { enabler->enabled = 1; lttng_session_lazy_sync_enablers(enabler->chan->session); return 0; } int lttng_enabler_disable(struct lttng_enabler *enabler) { enabler->enabled = 0; lttng_session_lazy_sync_enablers(enabler->chan->session); return 0; } int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler, struct lttng_ust_filter_bytecode_node *bytecode) { bytecode->enabler = enabler; cds_list_add_tail(&bytecode->node, &enabler->filter_bytecode_head); lttng_session_lazy_sync_enablers(enabler->chan->session); return 0; } int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler, struct lttng_ust_excluder_node *excluder) { excluder->enabler = enabler; cds_list_add_tail(&excluder->node, &enabler->excluder_head); lttng_session_lazy_sync_enablers(enabler->chan->session); return 0; } int lttng_attach_context(struct lttng_ust_context *context_param, struct lttng_ctx **ctx, struct lttng_session *session) { /* * We cannot attach a context after trace has been started for a * session because the metadata does not allow expressing this * information outside of the original channel scope. */ if (session->been_active) return -EPERM; switch (context_param->ctx) { case LTTNG_UST_CONTEXT_PTHREAD_ID: return lttng_add_pthread_id_to_ctx(ctx); case LTTNG_UST_CONTEXT_VTID: return lttng_add_vtid_to_ctx(ctx); case LTTNG_UST_CONTEXT_VPID: return lttng_add_vpid_to_ctx(ctx); case LTTNG_UST_CONTEXT_PROCNAME: return lttng_add_procname_to_ctx(ctx); case LTTNG_UST_CONTEXT_IP: return lttng_add_ip_to_ctx(ctx); default: return -EINVAL; } } int lttng_enabler_attach_context(struct lttng_enabler *enabler, struct lttng_ust_context *context_param) { #if 0 // disabled for now. struct lttng_session *session = enabler->chan->session; int ret; ret = lttng_attach_context(context_param, &enabler->ctx, session); if (ret) return ret; lttng_session_lazy_sync_enablers(enabler->chan->session); #endif return -ENOSYS; } static void lttng_enabler_destroy(struct lttng_enabler *enabler) { struct lttng_ust_filter_bytecode_node *filter_node, *tmp_filter_node; struct lttng_ust_excluder_node *excluder_node, *tmp_excluder_node; /* Destroy filter bytecode */ cds_list_for_each_entry_safe(filter_node, tmp_filter_node, &enabler->filter_bytecode_head, node) { free(filter_node); } /* Destroy excluders */ cds_list_for_each_entry_safe(excluder_node, tmp_excluder_node, &enabler->excluder_head, node) { free(excluder_node); } /* Destroy contexts */ lttng_destroy_context(enabler->ctx); cds_list_del(&enabler->node); free(enabler); } /* * lttng_session_sync_enablers should be called just before starting a * session. */ static void lttng_session_sync_enablers(struct lttng_session *session) { struct lttng_enabler *enabler; struct lttng_event *event; cds_list_for_each_entry(enabler, &session->enablers_head, node) lttng_enabler_ref_events(enabler); /* * For each event, if at least one of its enablers is enabled, * and its channel and session transient states are enabled, we * enable the event, else we disable it. */ cds_list_for_each_entry(event, &session->events_head, node) { struct lttng_enabler_ref *enabler_ref; struct lttng_bytecode_runtime *runtime; int enabled = 0, has_enablers_without_bytecode = 0; /* Enable events */ cds_list_for_each_entry(enabler_ref, &event->enablers_ref_head, node) { if (enabler_ref->ref->enabled) { enabled = 1; break; } } /* * Enabled state is based on union of enablers, with * intesection of session and channel transient enable * states. */ enabled = enabled && session->tstate && event->chan->tstate; CMM_STORE_SHARED(event->enabled, enabled); /* * Sync tracepoint registration with event enabled * state. */ if (enabled) { if (!event->registered) register_event(event); } else { if (event->registered) unregister_event(event); } /* Check if has enablers without bytecode enabled */ cds_list_for_each_entry(enabler_ref, &event->enablers_ref_head, node) { if (enabler_ref->ref->enabled && cds_list_empty(&enabler_ref->ref->filter_bytecode_head)) { has_enablers_without_bytecode = 1; break; } } event->has_enablers_without_bytecode = has_enablers_without_bytecode; /* Enable filters */ cds_list_for_each_entry(runtime, &event->bytecode_runtime_head, node) { lttng_filter_sync_state(runtime); } } } /* * Apply enablers to session events, adding events to session if need * be. It is required after each modification applied to an active * session, and right before session "start". * "lazy" sync means we only sync if required. */ static void lttng_session_lazy_sync_enablers(struct lttng_session *session) { /* We can skip if session is not active */ if (!session->active) return; lttng_session_sync_enablers(session); } lttng-ust-2.4.0/liblttng-ust/lttng-ring-buffer-client-discard.c0000644000175000017500000000257112275157353021431 00000000000000/* * lttng-ring-buffer-client-discard.c * * LTTng lib ring buffer client (discard mode). * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include "lttng-tracer.h" #define RING_BUFFER_MODE_TEMPLATE RING_BUFFER_DISCARD #define RING_BUFFER_MODE_TEMPLATE_STRING "discard" #define RING_BUFFER_MODE_TEMPLATE_INIT \ lttng_ring_buffer_client_discard_init #define RING_BUFFER_MODE_TEMPLATE_EXIT \ lttng_ring_buffer_client_discard_exit #define LTTNG_CLIENT_TYPE LTTNG_CLIENT_DISCARD #define LTTNG_CLIENT_CALLBACKS lttng_client_callbacks_discard #define LTTNG_CLIENT_WAKEUP RING_BUFFER_WAKEUP_BY_WRITER #include "lttng-ring-buffer-client.h" lttng-ust-2.4.0/liblttng-ust/lttng-context-procname.c0000644000175000017500000000707712275157353017634 00000000000000/* * lttng-context-procname.c * * LTTng UST procname context. * * Copyright (C) 2009-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include "compat.h" /* * We cache the result to ensure we don't trigger a system call for * each event. * Upon exec, procname changes, but exec takes care of throwing away * this cached version. * The procname can also change by calling prctl(). The procname should * be set for a thread before the first event is logged within this * thread. */ typedef char procname_array[17]; static DEFINE_URCU_TLS(procname_array, cached_procname); static inline char *wrapper_getprocname(void) { if (caa_unlikely(!URCU_TLS(cached_procname)[0])) { lttng_ust_getprocname(URCU_TLS(cached_procname)); URCU_TLS(cached_procname)[LTTNG_UST_PROCNAME_LEN - 1] = '\0'; } return URCU_TLS(cached_procname); } void lttng_context_procname_reset(void) { URCU_TLS(cached_procname)[0] = '\0'; } static size_t procname_get_size(size_t offset) { size_t size = 0; size += LTTNG_UST_PROCNAME_LEN; return size; } static void procname_record(struct lttng_ctx_field *field, struct lttng_ust_lib_ring_buffer_ctx *ctx, struct lttng_channel *chan) { char *procname; procname = wrapper_getprocname(); chan->ops->event_write(ctx, procname, LTTNG_UST_PROCNAME_LEN); } static void procname_get_value(struct lttng_ctx_field *field, union lttng_ctx_value *value) { char *procname; procname = wrapper_getprocname(); value->str = procname; } int lttng_add_procname_to_ctx(struct lttng_ctx **ctx) { struct lttng_ctx_field *field; field = lttng_append_context(ctx); if (!field) return -ENOMEM; if (lttng_find_context(*ctx, "procname")) { lttng_remove_context_field(ctx, field); return -EEXIST; } field->event_field.name = "procname"; field->event_field.type.atype = atype_array; field->event_field.type.u.array.elem_type.atype = atype_integer; field->event_field.type.u.array.elem_type.u.basic.integer.size = sizeof(char) * CHAR_BIT; field->event_field.type.u.array.elem_type.u.basic.integer.alignment = lttng_alignof(char) * CHAR_BIT; field->event_field.type.u.array.elem_type.u.basic.integer.signedness = lttng_is_signed_type(char); field->event_field.type.u.array.elem_type.u.basic.integer.reverse_byte_order = 0; field->event_field.type.u.array.elem_type.u.basic.integer.base = 10; field->event_field.type.u.array.elem_type.u.basic.integer.encoding = lttng_encode_UTF8; field->event_field.type.u.array.length = LTTNG_UST_PROCNAME_LEN; field->get_size = procname_get_size; field->record = procname_record; field->get_value = procname_get_value; return 0; } /* * Force a read (imply TLS fixup for dlopen) of TLS variables. */ void lttng_fixup_procname_tls(void) { asm volatile ("" : : "m" (URCU_TLS(cached_procname)[0])); } lttng-ust-2.4.0/liblttng-ust/lttng-context-pthread-id.c0000644000175000017500000000512712275157353020043 00000000000000/* * lttng-context-pthread-id.c * * LTTng UST pthread_id context. * * Copyright (C) 2009-2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include static size_t pthread_id_get_size(size_t offset) { size_t size = 0; size += lib_ring_buffer_align(offset, lttng_alignof(unsigned long)); size += sizeof(unsigned long); return size; } static void pthread_id_record(struct lttng_ctx_field *field, struct lttng_ust_lib_ring_buffer_ctx *ctx, struct lttng_channel *chan) { unsigned long pthread_id; pthread_id = (unsigned long) pthread_self(); lib_ring_buffer_align_ctx(ctx, lttng_alignof(pthread_id)); chan->ops->event_write(ctx, &pthread_id, sizeof(pthread_id)); } static void pthread_id_get_value(struct lttng_ctx_field *field, union lttng_ctx_value *value) { unsigned long pthread_id; pthread_id = (unsigned long) pthread_self(); value->s64 = pthread_id; } int lttng_add_pthread_id_to_ctx(struct lttng_ctx **ctx) { struct lttng_ctx_field *field; field = lttng_append_context(ctx); if (!field) return -ENOMEM; if (lttng_find_context(*ctx, "pthread_id")) { lttng_remove_context_field(ctx, field); return -EEXIST; } field->event_field.name = "pthread_id"; field->event_field.type.atype = atype_integer; field->event_field.type.u.basic.integer.size = sizeof(unsigned long) * CHAR_BIT; field->event_field.type.u.basic.integer.alignment = lttng_alignof(unsigned long) * CHAR_BIT; field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(unsigned long); field->event_field.type.u.basic.integer.reverse_byte_order = 0; field->event_field.type.u.basic.integer.base = 10; field->event_field.type.u.basic.integer.encoding = lttng_encode_none; field->get_size = pthread_id_get_size; field->record = pthread_id_record; field->get_value = pthread_id_get_value; return 0; } lttng-ust-2.4.0/liblttng-ust/lttng-ring-buffer-client-discard-rt.c0000644000175000017500000000262112275157353022050 00000000000000/* * lttng-ring-buffer-client-discard-rt.c * * LTTng lib ring buffer client (discard mode) for RT. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include "lttng-tracer.h" #define RING_BUFFER_MODE_TEMPLATE RING_BUFFER_DISCARD #define RING_BUFFER_MODE_TEMPLATE_STRING "discard-rt" #define RING_BUFFER_MODE_TEMPLATE_INIT \ lttng_ring_buffer_client_discard_rt_init #define RING_BUFFER_MODE_TEMPLATE_EXIT \ lttng_ring_buffer_client_discard_rt_exit #define LTTNG_CLIENT_TYPE LTTNG_CLIENT_DISCARD_RT #define LTTNG_CLIENT_CALLBACKS lttng_client_callbacks_discard_rt #define LTTNG_CLIENT_WAKEUP RING_BUFFER_WAKEUP_BY_TIMER #include "lttng-ring-buffer-client.h" lttng-ust-2.4.0/liblttng-ust/tracepoint.c0000644000175000017500000005224612304144741015354 00000000000000/* * Copyright (C) 2008-2011 Mathieu Desnoyers * Copyright (C) 2009 Pierre-Marc Fournier * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Ported to userspace by Pierre-Marc Fournier. */ #define _LGPL_SOURCE #include #include #include #include #include #include #include #include #include #include #include /* for LTTNG_UST_SYM_NAME_LEN */ #include #include #include "tracepoint-internal.h" #include "lttng-tracer-core.h" #include "jhash.h" #include "error.h" /* Set to 1 to enable tracepoint debug output */ static const int tracepoint_debug; static int initialized; static void (*new_tracepoint_cb)(struct tracepoint *); /* * tracepoint_mutex nests inside UST mutex. * * Note about interaction with fork/clone: UST does not hold the * tracepoint mutex across fork/clone because it is either: * - nested within UST mutex, in which case holding the UST mutex across * fork/clone suffice, * - taken by a library constructor, which should never race with a * fork/clone if the application is expected to continue running with * the same memory layout (no following exec()). */ static pthread_mutex_t tracepoint_mutex = PTHREAD_MUTEX_INITIALIZER; /* * libraries that contain tracepoints (struct tracepoint_lib). * Protected by tracepoint mutex. */ static CDS_LIST_HEAD(libs); /* * The tracepoint mutex protects the library tracepoints, the hash table, and * the library list. * All calls to the tracepoint API must be protected by the tracepoint mutex, * excepts calls to tracepoint_register_lib and * tracepoint_unregister_lib, which take the tracepoint mutex themselves. */ /* * Tracepoint hash table, containing the active tracepoints. * Protected by tracepoint mutex. */ #define TRACEPOINT_HASH_BITS 12 #define TRACEPOINT_TABLE_SIZE (1 << TRACEPOINT_HASH_BITS) static struct cds_hlist_head tracepoint_table[TRACEPOINT_TABLE_SIZE]; static CDS_LIST_HEAD(old_probes); static int need_update; /* * Note about RCU : * It is used to to delay the free of multiple probes array until a quiescent * state is reached. * Tracepoint entries modifications are protected by the tracepoint mutex. */ struct tracepoint_entry { struct cds_hlist_node hlist; struct tracepoint_probe *probes; int refcount; /* Number of times armed. 0 if disarmed. */ int callsite_refcount; /* how many libs use this tracepoint */ const char *signature; char name[0]; }; struct tp_probes { union { struct cds_list_head list; /* Field below only used for call_rcu scheme */ /* struct rcu_head head; */ } u; struct tracepoint_probe probes[0]; }; /* * Callsite hash table, containing the tracepoint call sites. * Protected by tracepoint mutex. */ #define CALLSITE_HASH_BITS 12 #define CALLSITE_TABLE_SIZE (1 << CALLSITE_HASH_BITS) static struct cds_hlist_head callsite_table[CALLSITE_TABLE_SIZE]; struct callsite_entry { struct cds_hlist_node hlist; /* hash table node */ struct cds_list_head node; /* lib list of callsites node */ struct tracepoint *tp; }; /* coverity[+alloc] */ static void *allocate_probes(int count) { struct tp_probes *p = zmalloc(count * sizeof(struct tracepoint_probe) + sizeof(struct tp_probes)); return p == NULL ? NULL : p->probes; } /* coverity[+free : arg-0] */ static void release_probes(void *old) { if (old) { struct tp_probes *tp_probes = caa_container_of(old, struct tp_probes, probes[0]); synchronize_rcu(); free(tp_probes); } } static void debug_print_probes(struct tracepoint_entry *entry) { int i; if (!tracepoint_debug || !entry->probes) return; for (i = 0; entry->probes[i].func; i++) DBG("Probe %d : %p", i, entry->probes[i].func); } static void * tracepoint_entry_add_probe(struct tracepoint_entry *entry, void (*probe)(void), void *data) { int nr_probes = 0; struct tracepoint_probe *old, *new; if (!probe) { WARN_ON(1); return ERR_PTR(-EINVAL); } debug_print_probes(entry); old = entry->probes; if (old) { /* (N -> N+1), (N != 0, 1) probes */ for (nr_probes = 0; old[nr_probes].func; nr_probes++) if (old[nr_probes].func == probe && old[nr_probes].data == data) return ERR_PTR(-EEXIST); } /* + 2 : one for new probe, one for NULL func */ new = allocate_probes(nr_probes + 2); if (new == NULL) return ERR_PTR(-ENOMEM); if (old) memcpy(new, old, nr_probes * sizeof(struct tracepoint_probe)); new[nr_probes].func = probe; new[nr_probes].data = data; new[nr_probes + 1].func = NULL; entry->refcount = nr_probes + 1; entry->probes = new; debug_print_probes(entry); return old; } static void * tracepoint_entry_remove_probe(struct tracepoint_entry *entry, void (*probe)(void), void *data) { int nr_probes = 0, nr_del = 0, i; struct tracepoint_probe *old, *new; old = entry->probes; if (!old) return ERR_PTR(-ENOENT); debug_print_probes(entry); /* (N -> M), (N > 1, M >= 0) probes */ if (probe) { for (nr_probes = 0; old[nr_probes].func; nr_probes++) { if (old[nr_probes].func == probe && old[nr_probes].data == data) nr_del++; } } if (nr_probes - nr_del == 0) { /* N -> 0, (N > 1) */ entry->probes = NULL; entry->refcount = 0; debug_print_probes(entry); return old; } else { int j = 0; /* N -> M, (N > 1, M > 0) */ /* + 1 for NULL */ new = allocate_probes(nr_probes - nr_del + 1); if (new == NULL) return ERR_PTR(-ENOMEM); for (i = 0; old[i].func; i++) if (old[i].func != probe || old[i].data != data) new[j++] = old[i]; new[nr_probes - nr_del].func = NULL; entry->refcount = nr_probes - nr_del; entry->probes = new; } debug_print_probes(entry); return old; } /* * Get tracepoint if the tracepoint is present in the tracepoint hash table. * Must be called with tracepoint mutex held. * Returns NULL if not present. */ static struct tracepoint_entry *get_tracepoint(const char *name) { struct cds_hlist_head *head; struct cds_hlist_node *node; struct tracepoint_entry *e; size_t name_len = strlen(name); uint32_t hash; if (name_len > LTTNG_UST_SYM_NAME_LEN - 1) { WARN("Truncating tracepoint name %s which exceeds size limits of %u chars", name, LTTNG_UST_SYM_NAME_LEN - 1); name_len = LTTNG_UST_SYM_NAME_LEN - 1; } hash = jhash(name, name_len, 0); head = &tracepoint_table[hash & (TRACEPOINT_TABLE_SIZE - 1)]; cds_hlist_for_each_entry(e, node, head, hlist) { if (!strncmp(name, e->name, LTTNG_UST_SYM_NAME_LEN - 1)) return e; } return NULL; } /* * Add the tracepoint to the tracepoint hash table. Must be called with * tracepoint mutex held. */ static struct tracepoint_entry *add_tracepoint(const char *name, const char *signature) { struct cds_hlist_head *head; struct cds_hlist_node *node; struct tracepoint_entry *e; size_t name_len = strlen(name); uint32_t hash; if (name_len > LTTNG_UST_SYM_NAME_LEN - 1) { WARN("Truncating tracepoint name %s which exceeds size limits of %u chars", name, LTTNG_UST_SYM_NAME_LEN - 1); name_len = LTTNG_UST_SYM_NAME_LEN - 1; } hash = jhash(name, name_len, 0); head = &tracepoint_table[hash & (TRACEPOINT_TABLE_SIZE - 1)]; cds_hlist_for_each_entry(e, node, head, hlist) { if (!strncmp(name, e->name, LTTNG_UST_SYM_NAME_LEN - 1)) { DBG("tracepoint %s busy", name); return ERR_PTR(-EEXIST); /* Already there */ } } /* * Using zmalloc here to allocate a variable length element. Could * cause some memory fragmentation if overused. */ e = zmalloc(sizeof(struct tracepoint_entry) + name_len + 1); if (!e) return ERR_PTR(-ENOMEM); memcpy(&e->name[0], name, name_len + 1); e->name[name_len] = '\0'; e->probes = NULL; e->refcount = 0; e->callsite_refcount = 0; e->signature = signature; cds_hlist_add_head(&e->hlist, head); return e; } /* * Remove the tracepoint from the tracepoint hash table. Must be called with * tracepoint mutex held. */ static void remove_tracepoint(struct tracepoint_entry *e) { cds_hlist_del(&e->hlist); free(e); } /* * Sets the probe callback corresponding to one tracepoint. */ static void set_tracepoint(struct tracepoint_entry **entry, struct tracepoint *elem, int active) { WARN_ON(strncmp((*entry)->name, elem->name, LTTNG_UST_SYM_NAME_LEN - 1) != 0); /* * Check that signatures match before connecting a probe to a * tracepoint. Warn the user if they don't. */ if (strcmp(elem->signature, (*entry)->signature) != 0) { static int warned = 0; /* Only print once, don't flood console. */ if (!warned) { WARN("Tracepoint signature mismatch, not enabling one or more tracepoints. Ensure that the tracepoint probes prototypes match the application."); WARN("Tracepoint \"%s\" signatures: call: \"%s\" vs probe: \"%s\".", elem->name, elem->signature, (*entry)->signature); warned = 1; } /* Don't accept connecting non-matching signatures. */ return; } /* * rcu_assign_pointer has a cmm_smp_wmb() which makes sure that the new * probe callbacks array is consistent before setting a pointer to it. * This array is referenced by __DO_TRACE from * include/linux/tracepoints.h. A matching cmm_smp_read_barrier_depends() * is used. */ rcu_assign_pointer(elem->probes, (*entry)->probes); elem->state = active; } /* * Disable a tracepoint and its probe callback. * Note: only waiting an RCU period after setting elem->call to the empty * function insures that the original callback is not used anymore. This insured * by preempt_disable around the call site. */ static void disable_tracepoint(struct tracepoint *elem) { elem->state = 0; rcu_assign_pointer(elem->probes, NULL); } /* * Add the callsite to the callsite hash table. Must be called with * tracepoint mutex held. */ static void add_callsite(struct tracepoint_lib * lib, struct tracepoint *tp) { struct cds_hlist_head *head; struct callsite_entry *e; const char *name = tp->name; size_t name_len = strlen(name); uint32_t hash; struct tracepoint_entry *tp_entry; if (name_len > LTTNG_UST_SYM_NAME_LEN - 1) { WARN("Truncating tracepoint name %s which exceeds size limits of %u chars", name, LTTNG_UST_SYM_NAME_LEN - 1); name_len = LTTNG_UST_SYM_NAME_LEN - 1; } hash = jhash(name, name_len, 0); head = &callsite_table[hash & (CALLSITE_TABLE_SIZE - 1)]; e = zmalloc(sizeof(struct callsite_entry)); if (!e) { PERROR("Unable to add callsite for tracepoint \"%s\"", name); return; } cds_hlist_add_head(&e->hlist, head); e->tp = tp; cds_list_add(&e->node, &lib->callsites); tp_entry = get_tracepoint(name); if (!tp_entry) return; tp_entry->callsite_refcount++; } /* * Remove the callsite from the callsite hash table and from lib * callsite list. Must be called with tracepoint mutex held. */ static void remove_callsite(struct callsite_entry *e) { struct tracepoint_entry *tp_entry; tp_entry = get_tracepoint(e->tp->name); if (tp_entry) { tp_entry->callsite_refcount--; if (tp_entry->callsite_refcount == 0) disable_tracepoint(e->tp); } cds_hlist_del(&e->hlist); cds_list_del(&e->node); free(e); } /* * Enable/disable all callsites based on the state of a specific * tracepoint entry. * Must be called with tracepoint mutex held. */ static void tracepoint_sync_callsites(const char *name) { struct cds_hlist_head *head; struct cds_hlist_node *node; struct callsite_entry *e; size_t name_len = strlen(name); uint32_t hash; struct tracepoint_entry *tp_entry; tp_entry = get_tracepoint(name); if (name_len > LTTNG_UST_SYM_NAME_LEN - 1) { WARN("Truncating tracepoint name %s which exceeds size limits of %u chars", name, LTTNG_UST_SYM_NAME_LEN - 1); name_len = LTTNG_UST_SYM_NAME_LEN - 1; } hash = jhash(name, name_len, 0); head = &callsite_table[hash & (CALLSITE_TABLE_SIZE - 1)]; cds_hlist_for_each_entry(e, node, head, hlist) { struct tracepoint *tp = e->tp; if (strncmp(name, tp->name, LTTNG_UST_SYM_NAME_LEN - 1)) continue; if (tp_entry) { set_tracepoint(&tp_entry, tp, !!tp_entry->refcount); } else { disable_tracepoint(tp); } } } /** * tracepoint_update_probe_range - Update a probe range * @begin: beginning of the range * @end: end of the range * * Updates the probe callback corresponding to a range of tracepoints. */ static void tracepoint_update_probe_range(struct tracepoint * const *begin, struct tracepoint * const *end) { struct tracepoint * const *iter; struct tracepoint_entry *mark_entry; for (iter = begin; iter < end; iter++) { if (!*iter) continue; /* skip dummy */ if (!(*iter)->name) { disable_tracepoint(*iter); continue; } mark_entry = get_tracepoint((*iter)->name); if (mark_entry) { set_tracepoint(&mark_entry, *iter, !!mark_entry->refcount); } else { disable_tracepoint(*iter); } } } static void lib_update_tracepoints(struct tracepoint_lib *lib) { tracepoint_update_probe_range(lib->tracepoints_start, lib->tracepoints_start + lib->tracepoints_count); } static void lib_register_callsites(struct tracepoint_lib *lib) { struct tracepoint * const *begin; struct tracepoint * const *end; struct tracepoint * const *iter; begin = lib->tracepoints_start; end = lib->tracepoints_start + lib->tracepoints_count; for (iter = begin; iter < end; iter++) { if (!*iter) continue; /* skip dummy */ if (!(*iter)->name) { continue; } add_callsite(lib, *iter); } } static void lib_unregister_callsites(struct tracepoint_lib *lib) { struct callsite_entry *callsite, *tmp; cds_list_for_each_entry_safe(callsite, tmp, &lib->callsites, node) remove_callsite(callsite); } /* * Update probes, removing the faulty probes. */ static void tracepoint_update_probes(void) { struct tracepoint_lib *lib; /* tracepoints registered from libraries and executable. */ cds_list_for_each_entry(lib, &libs, list) lib_update_tracepoints(lib); } static struct tracepoint_probe * tracepoint_add_probe(const char *name, void (*probe)(void), void *data, const char *signature) { struct tracepoint_entry *entry; struct tracepoint_probe *old; entry = get_tracepoint(name); if (!entry) { entry = add_tracepoint(name, signature); if (IS_ERR(entry)) return (struct tracepoint_probe *)entry; } old = tracepoint_entry_add_probe(entry, probe, data); if (IS_ERR(old) && !entry->refcount) remove_tracepoint(entry); return old; } /** * __tracepoint_probe_register - Connect a probe to a tracepoint * @name: tracepoint name * @probe: probe handler * * Returns 0 if ok, error value on error. * The probe address must at least be aligned on the architecture pointer size. * Called with the tracepoint mutex held. */ int __tracepoint_probe_register(const char *name, void (*probe)(void), void *data, const char *signature) { void *old; int ret = 0; DBG("Registering probe to tracepoint %s", name); pthread_mutex_lock(&tracepoint_mutex); old = tracepoint_add_probe(name, probe, data, signature); if (IS_ERR(old)) { ret = PTR_ERR(old); goto end; } tracepoint_sync_callsites(name); release_probes(old); end: pthread_mutex_unlock(&tracepoint_mutex); return ret; } static void *tracepoint_remove_probe(const char *name, void (*probe)(void), void *data) { struct tracepoint_entry *entry; void *old; entry = get_tracepoint(name); if (!entry) return ERR_PTR(-ENOENT); old = tracepoint_entry_remove_probe(entry, probe, data); if (IS_ERR(old)) return old; if (!entry->refcount) remove_tracepoint(entry); return old; } /** * tracepoint_probe_unregister - Disconnect a probe from a tracepoint * @name: tracepoint name * @probe: probe function pointer * @probe: probe data pointer */ int __tracepoint_probe_unregister(const char *name, void (*probe)(void), void *data) { void *old; int ret = 0; DBG("Un-registering probe from tracepoint %s", name); pthread_mutex_lock(&tracepoint_mutex); old = tracepoint_remove_probe(name, probe, data); if (IS_ERR(old)) { ret = PTR_ERR(old); goto end; } tracepoint_sync_callsites(name); release_probes(old); end: pthread_mutex_unlock(&tracepoint_mutex); return ret; } static void tracepoint_add_old_probes(void *old) { need_update = 1; if (old) { struct tp_probes *tp_probes = caa_container_of(old, struct tp_probes, probes[0]); cds_list_add(&tp_probes->u.list, &old_probes); } } /** * tracepoint_probe_register_noupdate - register a probe but not connect * @name: tracepoint name * @probe: probe handler * * caller must call tracepoint_probe_update_all() */ int tracepoint_probe_register_noupdate(const char *name, void (*probe)(void), void *data, const char *signature) { void *old; int ret = 0; pthread_mutex_lock(&tracepoint_mutex); old = tracepoint_add_probe(name, probe, data, signature); if (IS_ERR(old)) { ret = PTR_ERR(old); goto end; } tracepoint_add_old_probes(old); end: pthread_mutex_unlock(&tracepoint_mutex); return ret; } /** * tracepoint_probe_unregister_noupdate - remove a probe but not disconnect * @name: tracepoint name * @probe: probe function pointer * * caller must call tracepoint_probe_update_all() * Called with the tracepoint mutex held. */ int tracepoint_probe_unregister_noupdate(const char *name, void (*probe)(void), void *data) { void *old; int ret = 0; DBG("Un-registering probe from tracepoint %s", name); pthread_mutex_lock(&tracepoint_mutex); old = tracepoint_remove_probe(name, probe, data); if (IS_ERR(old)) { ret = PTR_ERR(old); goto end; } tracepoint_add_old_probes(old); end: pthread_mutex_unlock(&tracepoint_mutex); return ret; } /** * tracepoint_probe_update_all - update tracepoints */ void tracepoint_probe_update_all(void) { CDS_LIST_HEAD(release_probes); struct tp_probes *pos, *next; pthread_mutex_lock(&tracepoint_mutex); if (!need_update) { goto end; } if (!cds_list_empty(&old_probes)) cds_list_replace_init(&old_probes, &release_probes); need_update = 0; tracepoint_update_probes(); cds_list_for_each_entry_safe(pos, next, &release_probes, u.list) { cds_list_del(&pos->u.list); synchronize_rcu(); free(pos); } end: pthread_mutex_unlock(&tracepoint_mutex); } void tracepoint_set_new_tracepoint_cb(void (*cb)(struct tracepoint *)) { new_tracepoint_cb = cb; } static void new_tracepoints(struct tracepoint * const *start, struct tracepoint * const *end) { if (new_tracepoint_cb) { struct tracepoint * const *t; for (t = start; t < end; t++) { if (*t) new_tracepoint_cb(*t); } } } int tracepoint_register_lib(struct tracepoint * const *tracepoints_start, int tracepoints_count) { struct tracepoint_lib *pl, *iter; init_tracepoint(); pl = (struct tracepoint_lib *) zmalloc(sizeof(struct tracepoint_lib)); if (!pl) { PERROR("Unable to register tracepoint lib"); return -1; } pl->tracepoints_start = tracepoints_start; pl->tracepoints_count = tracepoints_count; CDS_INIT_LIST_HEAD(&pl->callsites); pthread_mutex_lock(&tracepoint_mutex); /* * We sort the libs by struct lib pointer address. */ cds_list_for_each_entry_reverse(iter, &libs, list) { BUG_ON(iter == pl); /* Should never be in the list twice */ if (iter < pl) { /* We belong to the location right after iter. */ cds_list_add(&pl->list, &iter->list); goto lib_added; } } /* We should be added at the head of the list */ cds_list_add(&pl->list, &libs); lib_added: new_tracepoints(tracepoints_start, tracepoints_start + tracepoints_count); lib_register_callsites(pl); lib_update_tracepoints(pl); pthread_mutex_unlock(&tracepoint_mutex); DBG("just registered a tracepoints section from %p and having %d tracepoints", tracepoints_start, tracepoints_count); if (ust_debug()) { int i; for (i = 0; i < tracepoints_count; i++) { DBG("registered tracepoint: %s", tracepoints_start[i]->name); } } return 0; } int tracepoint_unregister_lib(struct tracepoint * const *tracepoints_start) { struct tracepoint_lib *lib; pthread_mutex_lock(&tracepoint_mutex); cds_list_for_each_entry(lib, &libs, list) { if (lib->tracepoints_start != tracepoints_start) continue; cds_list_del(&lib->list); /* * Unregistering a callsite also decreases the * callsite reference count of the corresponding * tracepoint, and disables the tracepoint if * the reference count drops to zero. */ lib_unregister_callsites(lib); DBG("just unregistered a tracepoints section from %p", lib->tracepoints_start); free(lib); break; } pthread_mutex_unlock(&tracepoint_mutex); return 0; } void init_tracepoint(void) { if (uatomic_xchg(&initialized, 1) == 1) return; init_usterr(); } void exit_tracepoint(void) { initialized = 0; } /* * Create the wrapper symbols. */ #undef tp_rcu_read_lock_bp #undef tp_rcu_read_unlock_bp #undef tp_rcu_dereference_bp void tp_rcu_read_lock_bp(void) { rcu_read_lock_bp(); } void tp_rcu_read_unlock_bp(void) { rcu_read_unlock_bp(); } void *tp_rcu_dereference_sym_bp(void *p) { return rcu_dereference_bp(p); } lttng-ust-2.4.0/liblttng-ust/lttng-ust-baddr.h0000644000175000017500000000205112304151532016205 00000000000000#ifndef LTTNG_UST_BADDR_H #define LTTNG_UST_BADDR_H /* * Copyright (C) 2013 Paul Woegerer * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include void lttng_ust_baddr_statedump_init(void); void lttng_ust_baddr_statedump_destroy(void); int lttng_ust_baddr_statedump(void *owner); #endif /* LTTNG_UST_BADDR_H */ lttng-ust-2.4.0/liblttng-ust/jhash.h0000644000175000017500000001734612167611342014313 00000000000000/* * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include /* * Hash function * Source: http://burtleburtle.net/bob/c/lookup3.c * Originally Public Domain */ #define rot(x, k) (((x) << (k)) | ((x) >> (32 - (k)))) #define mix(a, b, c) \ do { \ a -= c; a ^= rot(c, 4); c += b; \ b -= a; b ^= rot(a, 6); a += c; \ c -= b; c ^= rot(b, 8); b += a; \ a -= c; a ^= rot(c, 16); c += b; \ b -= a; b ^= rot(a, 19); a += c; \ c -= b; c ^= rot(b, 4); b += a; \ } while (0) #define final(a, b, c) \ { \ c ^= b; c -= rot(b, 14); \ a ^= c; a -= rot(c, 11); \ b ^= a; b -= rot(a, 25); \ c ^= b; c -= rot(b, 16); \ a ^= c; a -= rot(c, 4);\ b ^= a; b -= rot(a, 14); \ c ^= b; c -= rot(b, 24); \ } #if (BYTE_ORDER == LITTLE_ENDIAN) #define HASH_LITTLE_ENDIAN 1 #else #define HASH_LITTLE_ENDIAN 0 #endif /* * * hashlittle() -- hash a variable-length key into a 32-bit value * k : the key (the unaligned variable-length array of bytes) * length : the length of the key, counting by bytes * initval : can be any 4-byte value * Returns a 32-bit value. Every bit of the key affects every bit of * the return value. Two keys differing by one or two bits will have * totally different hash values. * * The best hash table sizes are powers of 2. There is no need to do * mod a prime (mod is sooo slow!). If you need less than 32 bits, * use a bitmask. For example, if you need only 10 bits, do * h = (h & hashmask(10)); * In which case, the hash table should have hashsize(10) elements. * * If you are hashing n strings (uint8_t **)k, do it like this: * for (i = 0, h = 0; i < n; ++i) h = hashlittle(k[i], len[i], h); * * By Bob Jenkins, 2006. bob_jenkins@burtleburtle.net. You may use this * code any way you wish, private, educational, or commercial. It's free. * * Use for hash table lookup, or anything where one collision in 2^^32 is * acceptable. Do NOT use for cryptographic purposes. */ static uint32_t hashlittle(const void *key, size_t length, uint32_t initval) { uint32_t a, b, c; /* internal state */ union { const void *ptr; size_t i; } u; /* Set up the internal state */ a = b = c = 0xdeadbeef + ((uint32_t)length) + initval; u.ptr = key; if (HASH_LITTLE_ENDIAN && ((u.i & 0x3) == 0)) { const uint32_t *k = (const uint32_t *) key; /* read 32-bit chunks */ /*------ all but last block: aligned reads and affect 32 bits of (a,b,c) */ while (length > 12) { a += k[0]; b += k[1]; c += k[2]; mix(a, b, c); length -= 12; k += 3; } /*----------------------------- handle the last (probably partial) block */ /* * "k[2]&0xffffff" actually reads beyond the end of the string, but * then masks off the part it's not allowed to read. Because the * string is aligned, the masked-off tail is in the same word as the * rest of the string. Every machine with memory protection I've seen * does it on word boundaries, so is OK with this. But VALGRIND will * still catch it and complain. The masking trick does make the hash * noticably faster for short strings (like English words). */ #ifndef VALGRIND switch (length) { case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; case 11: c+=k[2]&0xffffff; b+=k[1]; a+=k[0]; break; case 10: c+=k[2]&0xffff; b+=k[1]; a+=k[0]; break; case 9 : c+=k[2]&0xff; b+=k[1]; a+=k[0]; break; case 8 : b+=k[1]; a+=k[0]; break; case 7 : b+=k[1]&0xffffff; a+=k[0]; break; case 6 : b+=k[1]&0xffff; a+=k[0]; break; case 5 : b+=k[1]&0xff; a+=k[0]; break; case 4 : a+=k[0]; break; case 3 : a+=k[0]&0xffffff; break; case 2 : a+=k[0]&0xffff; break; case 1 : a+=k[0]&0xff; break; case 0 : return c; /* zero length strings require no mixing */ } #else /* make valgrind happy */ { const uint8_t *k8; k8 = (const uint8_t *) k; switch (length) { case 12: c+=k[2]; b+=k[1]; a+=k[0]; break; case 11: c+=((uint32_t) k8[10])<<16; /* fall through */ case 10: c+=((uint32_t) k8[9])<<8; /* fall through */ case 9 : c+=k8[8]; /* fall through */ case 8 : b+=k[1]; a+=k[0]; break; case 7 : b+=((uint32_t) k8[6])<<16; /* fall through */ case 6 : b+=((uint32_t) k8[5])<<8; /* fall through */ case 5 : b+=k8[4]; /* fall through */ case 4 : a+=k[0]; break; case 3 : a+=((uint32_t) k8[2])<<16; /* fall through */ case 2 : a+=((uint32_t) k8[1])<<8; /* fall through */ case 1 : a+=k8[0]; break; case 0 : return c; } } #endif /* !valgrind */ } else if (HASH_LITTLE_ENDIAN && ((u.i & 0x1) == 0)) { const uint16_t *k = (const uint16_t *) key; /* read 16-bit chunks */ const uint8_t *k8; /*--------------- all but last block: aligned reads and different mixing */ while (length > 12) { a += k[0] + (((uint32_t) k[1])<<16); b += k[2] + (((uint32_t) k[3])<<16); c += k[4] + (((uint32_t) k[5])<<16); mix(a, b, c); length -= 12; k += 6; } /*----------------------------- handle the last (probably partial) block */ k8 = (const uint8_t *) k; switch(length) { case 12: c+=k[4]+(((uint32_t) k[5])<<16); b+=k[2]+(((uint32_t) k[3])<<16); a+=k[0]+(((uint32_t) k[1])<<16); break; case 11: c+=((uint32_t) k8[10])<<16; /* fall through */ case 10: c+=k[4]; b+=k[2]+(((uint32_t) k[3])<<16); a+=k[0]+(((uint32_t) k[1])<<16); break; case 9 : c+=k8[8]; /* fall through */ case 8 : b+=k[2]+(((uint32_t) k[3])<<16); a+=k[0]+(((uint32_t) k[1])<<16); break; case 7 : b+=((uint32_t) k8[6])<<16; /* fall through */ case 6 : b+=k[2]; a+=k[0]+(((uint32_t) k[1])<<16); break; case 5 : b+=k8[4]; /* fall through */ case 4 : a+=k[0]+(((uint32_t) k[1])<<16); break; case 3 : a+=((uint32_t) k8[2])<<16; /* fall through */ case 2 : a+=k[0]; break; case 1 : a+=k8[0]; break; case 0 : return c; /* zero length requires no mixing */ } } else { /* need to read the key one byte at a time */ const uint8_t *k = (const uint8_t *)key; /*--------------- all but the last block: affect some 32 bits of (a, b, c) */ while (length > 12) { a += k[0]; a += ((uint32_t) k[1])<<8; a += ((uint32_t) k[2])<<16; a += ((uint32_t) k[3])<<24; b += k[4]; b += ((uint32_t) k[5])<<8; b += ((uint32_t) k[6])<<16; b += ((uint32_t) k[7])<<24; c += k[8]; c += ((uint32_t) k[9])<<8; c += ((uint32_t) k[10])<<16; c += ((uint32_t) k[11])<<24; mix(a,b,c); length -= 12; k += 12; } /*-------------------------------- last block: affect all 32 bits of (c) */ switch (length) { /* all the case statements fall through */ case 12: c+=((uint32_t) k[11])<<24; case 11: c+=((uint32_t) k[10])<<16; case 10: c+=((uint32_t) k[9])<<8; case 9 : c+=k[8]; case 8 : b+=((uint32_t) k[7])<<24; case 7 : b+=((uint32_t) k[6])<<16; case 6 : b+=((uint32_t) k[5])<<8; case 5 : b+=k[4]; case 4 : a+=((uint32_t) k[3])<<24; case 3 : a+=((uint32_t) k[2])<<16; case 2 : a+=((uint32_t) k[1])<<8; case 1 : a+=k[0]; break; case 0 : return c; } } final(a, b, c); return c; } static inline uint32_t jhash(const void *key, size_t length, uint32_t seed) { return hashlittle(key, length, seed); } lttng-ust-2.4.0/liblttng-ust/clock.h0000644000175000017500000000375712167611342014312 00000000000000/* * Copyright (C) 2010 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef _UST_CLOCK_H #define _UST_CLOCK_H #include #include #include #include #include #include "lttng-ust-uuid.h" /* TRACE CLOCK */ /* * Currently using the kernel MONOTONIC clock, waiting for kernel-side * LTTng to implement mmap'd trace clock. */ /* Choosing correct trace clock */ static __inline__ uint64_t trace_clock_read64(void) { struct timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); return ((uint64_t) ts.tv_sec * 1000000000ULL) + ts.tv_nsec; } static __inline__ uint64_t trace_clock_freq(void) { return 1000000000ULL; } static __inline__ int trace_clock_uuid(char *uuid) { int ret = 0; size_t len; FILE *fp; /* * boot_id needs to be read once before being used concurrently * to deal with a Linux kernel race. A fix is proposed for * upstream, but the work-around is needed for older kernels. */ fp = fopen("/proc/sys/kernel/random/boot_id", "r"); if (!fp) { return -ENOENT; } len = fread(uuid, 1, LTTNG_UST_UUID_STR_LEN - 1, fp); if (len < LTTNG_UST_UUID_STR_LEN - 1) { ret = -EINVAL; goto end; } uuid[LTTNG_UST_UUID_STR_LEN - 1] = '\0'; end: fclose(fp); return ret; } #endif /* _UST_CLOCK_H */ lttng-ust-2.4.0/liblttng-ust/lttng-context.c0000644000175000017500000000751612275157353016030 00000000000000/* * lttng-context.c * * LTTng UST trace/channel/event context management. * * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include /* * The filter implementation requires that two consecutive "get" for the * same context performed by the same thread return the same result. */ /* * Static array of contexts, for $ctx filters. */ struct lttng_ctx *lttng_static_ctx; int lttng_find_context(struct lttng_ctx *ctx, const char *name) { unsigned int i; for (i = 0; i < ctx->nr_fields; i++) { /* Skip allocated (but non-initialized) contexts */ if (!ctx->fields[i].event_field.name) continue; if (!strcmp(ctx->fields[i].event_field.name, name)) return 1; } return 0; } int lttng_get_context_index(struct lttng_ctx *ctx, const char *name) { unsigned int i; if (!ctx) return -1; for (i = 0; i < ctx->nr_fields; i++) { /* Skip allocated (but non-initialized) contexts */ if (!ctx->fields[i].event_field.name) continue; if (!strcmp(ctx->fields[i].event_field.name, name)) return i; } return -1; } /* * Note: as we append context information, the pointer location may change. */ struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx_p) { struct lttng_ctx_field *field; struct lttng_ctx *ctx; if (!*ctx_p) { *ctx_p = zmalloc(sizeof(struct lttng_ctx)); if (!*ctx_p) return NULL; } ctx = *ctx_p; if (ctx->nr_fields + 1 > ctx->allocated_fields) { struct lttng_ctx_field *new_fields; ctx->allocated_fields = max_t(size_t, 1, 2 * ctx->allocated_fields); new_fields = zmalloc(ctx->allocated_fields * sizeof(struct lttng_ctx_field)); if (!new_fields) return NULL; if (ctx->fields) memcpy(new_fields, ctx->fields, sizeof(*ctx->fields) * ctx->nr_fields); free(ctx->fields); ctx->fields = new_fields; } field = &ctx->fields[ctx->nr_fields]; ctx->nr_fields++; return field; } /* * Remove last context field. */ void lttng_remove_context_field(struct lttng_ctx **ctx_p, struct lttng_ctx_field *field) { struct lttng_ctx *ctx; ctx = *ctx_p; ctx->nr_fields--; assert(&ctx->fields[ctx->nr_fields] == field); memset(&ctx->fields[ctx->nr_fields], 0, sizeof(struct lttng_ctx_field)); } void lttng_destroy_context(struct lttng_ctx *ctx) { int i; if (!ctx) return; for (i = 0; i < ctx->nr_fields; i++) { if (ctx->fields[i].destroy) ctx->fields[i].destroy(&ctx->fields[i]); } free(ctx->fields); free(ctx); } void lttng_context_init(void) { int ret; ret = lttng_add_pthread_id_to_ctx(<tng_static_ctx); if (ret) { WARN("Cannot add context lttng_add_pthread_id_to_ctx"); } ret = lttng_add_vtid_to_ctx(<tng_static_ctx); if (ret) { WARN("Cannot add context lttng_add_vtid_to_ctx"); } ret = lttng_add_vpid_to_ctx(<tng_static_ctx); if (ret) { WARN("Cannot add context lttng_add_vpid_to_ctx"); } ret = lttng_add_procname_to_ctx(<tng_static_ctx); if (ret) { WARN("Cannot add context lttng_add_procname_to_ctx"); } } void lttng_context_exit(void) { lttng_destroy_context(lttng_static_ctx); lttng_static_ctx = NULL; } lttng-ust-2.4.0/liblttng-ust/lttng-hash-helper.h0000644000175000017500000001003012167611342016523 00000000000000#ifndef _LTTNG_HASH_HELPER_H #define _LTTNG_HASH_HELPER_H /* * lttng-hash-helper.h * * LTTng hash table helpers. * * Copyright (C) 2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include /* * Hash function * Source: http://burtleburtle.net/bob/c/lookup3.c * Originally Public Domain */ #define rot(x, k) (((x) << (k)) | ((x) >> (32 - (k)))) #define mix(a, b, c) \ do { \ a -= c; a ^= rot(c, 4); c += b; \ b -= a; b ^= rot(a, 6); a += c; \ c -= b; c ^= rot(b, 8); b += a; \ a -= c; a ^= rot(c, 16); c += b; \ b -= a; b ^= rot(a, 19); a += c; \ c -= b; c ^= rot(b, 4); b += a; \ } while (0) #define final(a, b, c) \ { \ c ^= b; c -= rot(b, 14); \ a ^= c; a -= rot(c, 11); \ b ^= a; b -= rot(a, 25); \ c ^= b; c -= rot(b, 16); \ a ^= c; a -= rot(c, 4);\ b ^= a; b -= rot(a, 14); \ c ^= b; c -= rot(b, 24); \ } static inline __attribute__((unused)) uint32_t lttng_hash_u32( const uint32_t *k, /* the key, an array of uint32_t values */ size_t length, /* the length of the key, in uint32_ts */ uint32_t initval) /* the previous hash, or an arbitrary value */ { uint32_t a, b, c; /* Set up the internal state */ a = b = c = 0xdeadbeef + (((uint32_t) length) << 2) + initval; /*----------------------------------------- handle most of the key */ while (length > 3) { a += k[0]; b += k[1]; c += k[2]; mix(a, b, c); length -= 3; k += 3; } /*----------------------------------- handle the last 3 uint32_t's */ switch (length) { /* all the case statements fall through */ case 3: c += k[2]; case 2: b += k[1]; case 1: a += k[0]; final(a, b, c); case 0: /* case 0: nothing left to add */ break; } /*---------------------------------------------- report the result */ return c; } static inline void lttng_hashword2( const uint32_t *k, /* the key, an array of uint32_t values */ size_t length, /* the length of the key, in uint32_ts */ uint32_t *pc, /* IN: seed OUT: primary hash value */ uint32_t *pb) /* IN: more seed OUT: secondary hash value */ { uint32_t a, b, c; /* Set up the internal state */ a = b = c = 0xdeadbeef + ((uint32_t) (length << 2)) + *pc; c += *pb; /*----------------------------------------- handle most of the key */ while (length > 3) { a += k[0]; b += k[1]; c += k[2]; mix(a, b, c); length -= 3; k += 3; } /*----------------------------------- handle the last 3 uint32_t's */ switch (length) { /* all the case statements fall through */ case 3: c += k[2]; case 2: b += k[1]; case 1: a += k[0]; final(a, b, c); case 0: /* case 0: nothing left to add */ break; } /*---------------------------------------------- report the result */ *pc = c; *pb = b; } #if (CAA_BITS_PER_LONG == 32) static inline unsigned long lttng_hash_mix(const void *_key, size_t length, unsigned long seed) { unsigned int key = (unsigned int) _key; assert(length == sizeof(unsigned int)); return lttng_hash_u32(&key, 1, seed); } #else static inline unsigned long lttng_hash_mix(const void *_key, size_t length, unsigned long seed) { union { uint64_t v64; uint32_t v32[2]; } v; union { uint64_t v64; uint32_t v32[2]; } key; assert(length == sizeof(unsigned long)); v.v64 = (uint64_t) seed; key.v64 = (uint64_t) _key; lttng_hashword2(key.v32, 2, &v.v32[0], &v.v32[1]); return v.v64; } #endif #endif /* _LTTNG_HASH_HELPER_H */ lttng-ust-2.4.0/liblttng-ust/lttng-filter-validator.c0000644000175000017500000006167012275157353017615 00000000000000/* * lttng-filter-validator.c * * LTTng UST filter bytecode validator. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _LGPL_SOURCE #include #include #include "lttng-filter.h" #include #include "lttng-hash-helper.h" /* * Number of merge points for hash table size. Hash table initialized to * that size, and we do not resize, because we do not want to trigger * RCU worker thread execution: fall-back on linear traversal if number * of merge points exceeds this value. */ #define DEFAULT_NR_MERGE_POINTS 128 #define MIN_NR_BUCKETS 128 #define MAX_NR_BUCKETS 128 /* merge point table node */ struct lfht_mp_node { struct cds_lfht_node node; /* Context at merge point */ struct vstack stack; unsigned long target_pc; }; static unsigned long lttng_hash_seed; static unsigned int lttng_hash_seed_ready; static int lttng_hash_match(struct cds_lfht_node *node, const void *key) { struct lfht_mp_node *mp_node = caa_container_of(node, struct lfht_mp_node, node); unsigned long key_pc = (unsigned long) key; if (mp_node->target_pc == key_pc) return 1; else return 0; } static int merge_points_compare(const struct vstack *stacka, const struct vstack *stackb) { int i, len; if (stacka->top != stackb->top) return 1; len = stacka->top + 1; assert(len >= 0); for (i = 0; i < len; i++) { if (stacka->e[i].type != stackb->e[i].type) return 1; } return 0; } static int merge_point_add_check(struct cds_lfht *ht, unsigned long target_pc, const struct vstack *stack) { struct lfht_mp_node *node; unsigned long hash = lttng_hash_mix((const void *) target_pc, sizeof(target_pc), lttng_hash_seed); struct cds_lfht_node *ret; dbg_printf("Filter: adding merge point at offset %lu, hash %lu\n", target_pc, hash); node = zmalloc(sizeof(struct lfht_mp_node)); if (!node) return -ENOMEM; node->target_pc = target_pc; memcpy(&node->stack, stack, sizeof(node->stack)); ret = cds_lfht_add_unique(ht, hash, lttng_hash_match, (const void *) target_pc, &node->node); if (ret != &node->node) { struct lfht_mp_node *ret_mp = caa_container_of(ret, struct lfht_mp_node, node); /* Key already present */ dbg_printf("Filter: compare merge points for offset %lu, hash %lu\n", target_pc, hash); free(node); if (merge_points_compare(stack, &ret_mp->stack)) { ERR("Merge points differ for offset %lu\n", target_pc); return -EINVAL; } } return 0; } /* * Binary comparators use top of stack and top of stack -1. */ static int bin_op_compare_check(struct vstack *stack, const char *str) { if (unlikely(!vstack_ax(stack) || !vstack_bx(stack))) goto error_unknown; switch (vstack_ax(stack)->type) { default: goto error_unknown; case REG_STRING: switch (vstack_bx(stack)->type) { default: goto error_unknown; case REG_STRING: break; case REG_S64: case REG_DOUBLE: goto error_mismatch; } break; case REG_S64: case REG_DOUBLE: switch (vstack_bx(stack)->type) { default: goto error_unknown; case REG_STRING: goto error_mismatch; case REG_S64: case REG_DOUBLE: break; } break; } return 0; error_unknown: return -EINVAL; error_mismatch: ERR("type mismatch for '%s' binary operator\n", str); return -EINVAL; } /* * Validate bytecode range overflow within the validation pass. * Called for each instruction encountered. */ static int bytecode_validate_overflow(struct bytecode_runtime *bytecode, void *start_pc, void *pc) { int ret = 0; switch (*(filter_opcode_t *) pc) { case FILTER_OP_UNKNOWN: default: { ERR("unknown bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; break; } case FILTER_OP_RETURN: { if (unlikely(pc + sizeof(struct return_op) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } /* binary */ case FILTER_OP_MUL: case FILTER_OP_DIV: case FILTER_OP_MOD: case FILTER_OP_PLUS: case FILTER_OP_MINUS: case FILTER_OP_RSHIFT: case FILTER_OP_LSHIFT: case FILTER_OP_BIN_AND: case FILTER_OP_BIN_OR: case FILTER_OP_BIN_XOR: { ERR("unsupported bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; break; } case FILTER_OP_EQ: case FILTER_OP_NE: case FILTER_OP_GT: case FILTER_OP_LT: case FILTER_OP_GE: case FILTER_OP_LE: case FILTER_OP_EQ_STRING: case FILTER_OP_NE_STRING: case FILTER_OP_GT_STRING: case FILTER_OP_LT_STRING: case FILTER_OP_GE_STRING: case FILTER_OP_LE_STRING: case FILTER_OP_EQ_S64: case FILTER_OP_NE_S64: case FILTER_OP_GT_S64: case FILTER_OP_LT_S64: case FILTER_OP_GE_S64: case FILTER_OP_LE_S64: case FILTER_OP_EQ_DOUBLE: case FILTER_OP_NE_DOUBLE: case FILTER_OP_GT_DOUBLE: case FILTER_OP_LT_DOUBLE: case FILTER_OP_GE_DOUBLE: case FILTER_OP_LE_DOUBLE: case FILTER_OP_EQ_DOUBLE_S64: case FILTER_OP_NE_DOUBLE_S64: case FILTER_OP_GT_DOUBLE_S64: case FILTER_OP_LT_DOUBLE_S64: case FILTER_OP_GE_DOUBLE_S64: case FILTER_OP_LE_DOUBLE_S64: case FILTER_OP_EQ_S64_DOUBLE: case FILTER_OP_NE_S64_DOUBLE: case FILTER_OP_GT_S64_DOUBLE: case FILTER_OP_LT_S64_DOUBLE: case FILTER_OP_GE_S64_DOUBLE: case FILTER_OP_LE_S64_DOUBLE: { if (unlikely(pc + sizeof(struct binary_op) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } /* unary */ case FILTER_OP_UNARY_PLUS: case FILTER_OP_UNARY_MINUS: case FILTER_OP_UNARY_NOT: case FILTER_OP_UNARY_PLUS_S64: case FILTER_OP_UNARY_MINUS_S64: case FILTER_OP_UNARY_NOT_S64: case FILTER_OP_UNARY_PLUS_DOUBLE: case FILTER_OP_UNARY_MINUS_DOUBLE: case FILTER_OP_UNARY_NOT_DOUBLE: { if (unlikely(pc + sizeof(struct unary_op) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } /* logical */ case FILTER_OP_AND: case FILTER_OP_OR: { if (unlikely(pc + sizeof(struct logical_op) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } /* load field ref */ case FILTER_OP_LOAD_FIELD_REF: { ERR("Unknown field ref type\n"); ret = -EINVAL; break; } /* get context ref */ case FILTER_OP_GET_CONTEXT_REF: { ERR("Unknown field ref type\n"); ret = -EINVAL; break; } case FILTER_OP_LOAD_FIELD_REF_STRING: case FILTER_OP_LOAD_FIELD_REF_SEQUENCE: case FILTER_OP_LOAD_FIELD_REF_S64: case FILTER_OP_LOAD_FIELD_REF_DOUBLE: case FILTER_OP_GET_CONTEXT_REF_STRING: case FILTER_OP_GET_CONTEXT_REF_S64: case FILTER_OP_GET_CONTEXT_REF_DOUBLE: { if (unlikely(pc + sizeof(struct load_op) + sizeof(struct field_ref) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } /* load from immediate operand */ case FILTER_OP_LOAD_STRING: { struct load_op *insn = (struct load_op *) pc; uint32_t str_len, maxlen; if (unlikely(pc + sizeof(struct load_op) > start_pc + bytecode->len)) { ret = -ERANGE; break; } maxlen = start_pc + bytecode->len - pc - sizeof(struct load_op); str_len = strnlen(insn->data, maxlen); if (unlikely(str_len >= maxlen)) { /* Final '\0' not found within range */ ret = -ERANGE; } break; } case FILTER_OP_LOAD_S64: { if (unlikely(pc + sizeof(struct load_op) + sizeof(struct literal_numeric) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } case FILTER_OP_LOAD_DOUBLE: { if (unlikely(pc + sizeof(struct load_op) + sizeof(struct literal_double) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } case FILTER_OP_CAST_TO_S64: case FILTER_OP_CAST_DOUBLE_TO_S64: case FILTER_OP_CAST_NOP: { if (unlikely(pc + sizeof(struct cast_op) > start_pc + bytecode->len)) { ret = -ERANGE; } break; } } return ret; } static unsigned long delete_all_nodes(struct cds_lfht *ht) { struct cds_lfht_iter iter; struct lfht_mp_node *node; unsigned long nr_nodes = 0; cds_lfht_for_each_entry(ht, &iter, node, node) { int ret; ret = cds_lfht_del(ht, cds_lfht_iter_get_node(&iter)); assert(!ret); /* note: this hash table is never used concurrently */ free(node); nr_nodes++; } return nr_nodes; } /* * Return value: * 0: success * <0: error */ static int validate_instruction_context(struct bytecode_runtime *bytecode, struct vstack *stack, void *start_pc, void *pc) { int ret = 0; switch (*(filter_opcode_t *) pc) { case FILTER_OP_UNKNOWN: default: { ERR("unknown bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; } case FILTER_OP_RETURN: { goto end; } /* binary */ case FILTER_OP_MUL: case FILTER_OP_DIV: case FILTER_OP_MOD: case FILTER_OP_PLUS: case FILTER_OP_MINUS: case FILTER_OP_RSHIFT: case FILTER_OP_LSHIFT: case FILTER_OP_BIN_AND: case FILTER_OP_BIN_OR: case FILTER_OP_BIN_XOR: { ERR("unsupported bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; } case FILTER_OP_EQ: { ret = bin_op_compare_check(stack, "=="); if (ret) goto end; break; } case FILTER_OP_NE: { ret = bin_op_compare_check(stack, "!="); if (ret) goto end; break; } case FILTER_OP_GT: { ret = bin_op_compare_check(stack, ">"); if (ret) goto end; break; } case FILTER_OP_LT: { ret = bin_op_compare_check(stack, "<"); if (ret) goto end; break; } case FILTER_OP_GE: { ret = bin_op_compare_check(stack, ">="); if (ret) goto end; break; } case FILTER_OP_LE: { ret = bin_op_compare_check(stack, "<="); if (ret) goto end; break; } case FILTER_OP_EQ_STRING: case FILTER_OP_NE_STRING: case FILTER_OP_GT_STRING: case FILTER_OP_LT_STRING: case FILTER_OP_GE_STRING: case FILTER_OP_LE_STRING: { if (!vstack_ax(stack) || !vstack_bx(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_STRING || vstack_bx(stack)->type != REG_STRING) { ERR("Unexpected register type for string comparator\n"); ret = -EINVAL; goto end; } break; } case FILTER_OP_EQ_S64: case FILTER_OP_NE_S64: case FILTER_OP_GT_S64: case FILTER_OP_LT_S64: case FILTER_OP_GE_S64: case FILTER_OP_LE_S64: { if (!vstack_ax(stack) || !vstack_bx(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_S64 || vstack_bx(stack)->type != REG_S64) { ERR("Unexpected register type for s64 comparator\n"); ret = -EINVAL; goto end; } break; } case FILTER_OP_EQ_DOUBLE: case FILTER_OP_NE_DOUBLE: case FILTER_OP_GT_DOUBLE: case FILTER_OP_LT_DOUBLE: case FILTER_OP_GE_DOUBLE: case FILTER_OP_LE_DOUBLE: { if (!vstack_ax(stack) || !vstack_bx(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_DOUBLE && vstack_bx(stack)->type != REG_DOUBLE) { ERR("Double operator should have two double registers\n"); ret = -EINVAL; goto end; } break; } case FILTER_OP_EQ_DOUBLE_S64: case FILTER_OP_NE_DOUBLE_S64: case FILTER_OP_GT_DOUBLE_S64: case FILTER_OP_LT_DOUBLE_S64: case FILTER_OP_GE_DOUBLE_S64: case FILTER_OP_LE_DOUBLE_S64: { if (!vstack_ax(stack) || !vstack_bx(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_S64 && vstack_bx(stack)->type != REG_DOUBLE) { ERR("Double-S64 operator has unexpected register types\n"); ret = -EINVAL; goto end; } break; } case FILTER_OP_EQ_S64_DOUBLE: case FILTER_OP_NE_S64_DOUBLE: case FILTER_OP_GT_S64_DOUBLE: case FILTER_OP_LT_S64_DOUBLE: case FILTER_OP_GE_S64_DOUBLE: case FILTER_OP_LE_S64_DOUBLE: { if (!vstack_ax(stack) || !vstack_bx(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_DOUBLE && vstack_bx(stack)->type != REG_S64) { ERR("S64-Double operator has unexpected register types\n"); ret = -EINVAL; goto end; } break; } /* unary */ case FILTER_OP_UNARY_PLUS: case FILTER_OP_UNARY_MINUS: case FILTER_OP_UNARY_NOT: { if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } switch (vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: ERR("Unary op can only be applied to numeric or floating point registers\n"); ret = -EINVAL; goto end; case REG_S64: break; case REG_DOUBLE: break; } break; } case FILTER_OP_UNARY_PLUS_S64: case FILTER_OP_UNARY_MINUS_S64: case FILTER_OP_UNARY_NOT_S64: { if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_S64) { ERR("Invalid register type\n"); ret = -EINVAL; goto end; } break; } case FILTER_OP_UNARY_PLUS_DOUBLE: case FILTER_OP_UNARY_MINUS_DOUBLE: case FILTER_OP_UNARY_NOT_DOUBLE: { if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_DOUBLE) { ERR("Invalid register type\n"); ret = -EINVAL; goto end; } break; } /* logical */ case FILTER_OP_AND: case FILTER_OP_OR: { struct logical_op *insn = (struct logical_op *) pc; if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } if (vstack_ax(stack)->type != REG_S64) { ERR("Logical comparator expects S64 register\n"); ret = -EINVAL; goto end; } dbg_printf("Validate jumping to bytecode offset %u\n", (unsigned int) insn->skip_offset); if (unlikely(start_pc + insn->skip_offset <= pc)) { ERR("Loops are not allowed in bytecode\n"); ret = -EINVAL; goto end; } break; } /* load field ref */ case FILTER_OP_LOAD_FIELD_REF: { ERR("Unknown field ref type\n"); ret = -EINVAL; goto end; } case FILTER_OP_LOAD_FIELD_REF_STRING: case FILTER_OP_LOAD_FIELD_REF_SEQUENCE: { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("Validate load field ref offset %u type string\n", ref->offset); break; } case FILTER_OP_LOAD_FIELD_REF_S64: { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("Validate load field ref offset %u type s64\n", ref->offset); break; } case FILTER_OP_LOAD_FIELD_REF_DOUBLE: { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("Validate load field ref offset %u type double\n", ref->offset); break; } /* load from immediate operand */ case FILTER_OP_LOAD_STRING: { break; } case FILTER_OP_LOAD_S64: { break; } case FILTER_OP_LOAD_DOUBLE: { break; } case FILTER_OP_CAST_TO_S64: case FILTER_OP_CAST_DOUBLE_TO_S64: { struct cast_op *insn = (struct cast_op *) pc; if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } switch (vstack_ax(stack)->type) { default: ERR("unknown register type\n"); ret = -EINVAL; goto end; case REG_STRING: ERR("Cast op can only be applied to numeric or floating point registers\n"); ret = -EINVAL; goto end; case REG_S64: break; case REG_DOUBLE: break; } if (insn->op == FILTER_OP_CAST_DOUBLE_TO_S64) { if (vstack_ax(stack)->type != REG_DOUBLE) { ERR("Cast expects double\n"); ret = -EINVAL; goto end; } } break; } case FILTER_OP_CAST_NOP: { break; } /* get context ref */ case FILTER_OP_GET_CONTEXT_REF: { ERR("Unknown get context ref type\n"); ret = -EINVAL; goto end; } case FILTER_OP_GET_CONTEXT_REF_STRING: { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("Validate get context ref offset %u type string\n", ref->offset); break; } case FILTER_OP_GET_CONTEXT_REF_S64: { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("Validate get context ref offset %u type s64\n", ref->offset); break; } case FILTER_OP_GET_CONTEXT_REF_DOUBLE: { struct load_op *insn = (struct load_op *) pc; struct field_ref *ref = (struct field_ref *) insn->data; dbg_printf("Validate get context ref offset %u type double\n", ref->offset); break; } } end: return ret; } /* * Return value: * 0: success * <0: error */ static int validate_instruction_all_contexts(struct bytecode_runtime *bytecode, struct cds_lfht *merge_points, struct vstack *stack, void *start_pc, void *pc) { int ret; unsigned long target_pc = pc - start_pc; struct cds_lfht_iter iter; struct cds_lfht_node *node; struct lfht_mp_node *mp_node; unsigned long hash; /* Validate the context resulting from the previous instruction */ ret = validate_instruction_context(bytecode, stack, start_pc, pc); if (ret) return ret; /* Validate merge points */ hash = lttng_hash_mix((const void *) target_pc, sizeof(target_pc), lttng_hash_seed); cds_lfht_lookup(merge_points, hash, lttng_hash_match, (const void *) target_pc, &iter); node = cds_lfht_iter_get_node(&iter); if (node) { mp_node = caa_container_of(node, struct lfht_mp_node, node); dbg_printf("Filter: validate merge point at offset %lu\n", target_pc); if (merge_points_compare(stack, &mp_node->stack)) { ERR("Merge points differ for offset %lu\n", target_pc); return -EINVAL; } /* Once validated, we can remove the merge point */ dbg_printf("Filter: remove merge point at offset %lu\n", target_pc); ret = cds_lfht_del(merge_points, node); assert(!ret); } return 0; } /* * Return value: * >0: going to next insn. * 0: success, stop iteration. * <0: error */ static int exec_insn(struct bytecode_runtime *bytecode, struct cds_lfht *merge_points, struct vstack *stack, void **_next_pc, void *pc) { int ret = 1; void *next_pc = *_next_pc; switch (*(filter_opcode_t *) pc) { case FILTER_OP_UNKNOWN: default: { ERR("unknown bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; } case FILTER_OP_RETURN: { if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } ret = 0; goto end; } /* binary */ case FILTER_OP_MUL: case FILTER_OP_DIV: case FILTER_OP_MOD: case FILTER_OP_PLUS: case FILTER_OP_MINUS: case FILTER_OP_RSHIFT: case FILTER_OP_LSHIFT: case FILTER_OP_BIN_AND: case FILTER_OP_BIN_OR: case FILTER_OP_BIN_XOR: { ERR("unsupported bytecode op %u\n", (unsigned int) *(filter_opcode_t *) pc); ret = -EINVAL; goto end; } case FILTER_OP_EQ: case FILTER_OP_NE: case FILTER_OP_GT: case FILTER_OP_LT: case FILTER_OP_GE: case FILTER_OP_LE: case FILTER_OP_EQ_STRING: case FILTER_OP_NE_STRING: case FILTER_OP_GT_STRING: case FILTER_OP_LT_STRING: case FILTER_OP_GE_STRING: case FILTER_OP_LE_STRING: case FILTER_OP_EQ_S64: case FILTER_OP_NE_S64: case FILTER_OP_GT_S64: case FILTER_OP_LT_S64: case FILTER_OP_GE_S64: case FILTER_OP_LE_S64: case FILTER_OP_EQ_DOUBLE: case FILTER_OP_NE_DOUBLE: case FILTER_OP_GT_DOUBLE: case FILTER_OP_LT_DOUBLE: case FILTER_OP_GE_DOUBLE: case FILTER_OP_LE_DOUBLE: case FILTER_OP_EQ_DOUBLE_S64: case FILTER_OP_NE_DOUBLE_S64: case FILTER_OP_GT_DOUBLE_S64: case FILTER_OP_LT_DOUBLE_S64: case FILTER_OP_GE_DOUBLE_S64: case FILTER_OP_LE_DOUBLE_S64: case FILTER_OP_EQ_S64_DOUBLE: case FILTER_OP_NE_S64_DOUBLE: case FILTER_OP_GT_S64_DOUBLE: case FILTER_OP_LT_S64_DOUBLE: case FILTER_OP_GE_S64_DOUBLE: case FILTER_OP_LE_S64_DOUBLE: { /* Pop 2, push 1 */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct binary_op); break; } /* unary */ case FILTER_OP_UNARY_PLUS: case FILTER_OP_UNARY_MINUS: case FILTER_OP_UNARY_NOT: case FILTER_OP_UNARY_PLUS_S64: case FILTER_OP_UNARY_MINUS_S64: case FILTER_OP_UNARY_NOT_S64: { /* Pop 1, push 1 */ if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct unary_op); break; } case FILTER_OP_UNARY_PLUS_DOUBLE: case FILTER_OP_UNARY_MINUS_DOUBLE: case FILTER_OP_UNARY_NOT_DOUBLE: { /* Pop 1, push 1 */ if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_DOUBLE; next_pc += sizeof(struct unary_op); break; } /* logical */ case FILTER_OP_AND: case FILTER_OP_OR: { struct logical_op *insn = (struct logical_op *) pc; int merge_ret; /* Add merge point to table */ merge_ret = merge_point_add_check(merge_points, insn->skip_offset, stack); if (merge_ret) { ret = merge_ret; goto end; } /* Continue to next instruction */ /* Pop 1 when jump not taken */ if (vstack_pop(stack)) { ret = -EINVAL; goto end; } next_pc += sizeof(struct logical_op); break; } /* load field ref */ case FILTER_OP_LOAD_FIELD_REF: { ERR("Unknown field ref type\n"); ret = -EINVAL; goto end; } /* get context ref */ case FILTER_OP_GET_CONTEXT_REF: { ERR("Unknown get context ref type\n"); ret = -EINVAL; goto end; } case FILTER_OP_LOAD_FIELD_REF_STRING: case FILTER_OP_LOAD_FIELD_REF_SEQUENCE: case FILTER_OP_GET_CONTEXT_REF_STRING: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_STRING; next_pc += sizeof(struct load_op) + sizeof(struct field_ref); break; } case FILTER_OP_LOAD_FIELD_REF_S64: case FILTER_OP_GET_CONTEXT_REF_S64: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct load_op) + sizeof(struct field_ref); break; } case FILTER_OP_LOAD_FIELD_REF_DOUBLE: case FILTER_OP_GET_CONTEXT_REF_DOUBLE: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_DOUBLE; next_pc += sizeof(struct load_op) + sizeof(struct field_ref); break; } /* load from immediate operand */ case FILTER_OP_LOAD_STRING: { struct load_op *insn = (struct load_op *) pc; if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_STRING; next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; break; } case FILTER_OP_LOAD_S64: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct load_op) + sizeof(struct literal_numeric); break; } case FILTER_OP_LOAD_DOUBLE: { if (vstack_push(stack)) { ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_DOUBLE; next_pc += sizeof(struct load_op) + sizeof(struct literal_double); break; } case FILTER_OP_CAST_TO_S64: case FILTER_OP_CAST_DOUBLE_TO_S64: { /* Pop 1, push 1 */ if (!vstack_ax(stack)) { ERR("Empty stack\n"); ret = -EINVAL; goto end; } vstack_ax(stack)->type = REG_S64; next_pc += sizeof(struct cast_op); break; } case FILTER_OP_CAST_NOP: { next_pc += sizeof(struct cast_op); break; } } end: *_next_pc = next_pc; return ret; } /* * Never called concurrently (hash seed is shared). */ int lttng_filter_validate_bytecode(struct bytecode_runtime *bytecode) { struct cds_lfht *merge_points; void *pc, *next_pc, *start_pc; int ret = -EINVAL; struct vstack stack; vstack_init(&stack); if (!lttng_hash_seed_ready) { lttng_hash_seed = time(NULL); lttng_hash_seed_ready = 1; } /* * Note: merge_points hash table used by single thread, and * never concurrently resized. Therefore, we can use it without * holding RCU read-side lock and free nodes without using * call_rcu. */ merge_points = cds_lfht_new(DEFAULT_NR_MERGE_POINTS, MIN_NR_BUCKETS, MAX_NR_BUCKETS, 0, NULL); if (!merge_points) { ERR("Error allocating hash table for bytecode validation\n"); return -ENOMEM; } start_pc = &bytecode->data[0]; for (pc = next_pc = start_pc; pc - start_pc < bytecode->len; pc = next_pc) { ret = bytecode_validate_overflow(bytecode, start_pc, pc); if (ret != 0) { if (ret == -ERANGE) ERR("filter bytecode overflow\n"); goto end; } dbg_printf("Validating op %s (%u)\n", print_op((unsigned int) *(filter_opcode_t *) pc), (unsigned int) *(filter_opcode_t *) pc); /* * For each instruction, validate the current context * (traversal of entire execution flow), and validate * all merge points targeting this instruction. */ ret = validate_instruction_all_contexts(bytecode, merge_points, &stack, start_pc, pc); if (ret) goto end; ret = exec_insn(bytecode, merge_points, &stack, &next_pc, pc); if (ret <= 0) goto end; } end: if (delete_all_nodes(merge_points)) { if (!ret) { ERR("Unexpected merge points\n"); ret = -EINVAL; } } if (cds_lfht_destroy(merge_points, NULL)) { ERR("Error destroying hash table\n"); } return ret; } lttng-ust-2.4.0/liblttng-ust/lttng-ring-buffer-client.h0000644000175000017500000004663412304151532020021 00000000000000/* * lttng-ring-buffer-client.h * * LTTng lib ring buffer client template. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "lttng/bitfield.h" #include "clock.h" #include "lttng-tracer.h" #include "../libringbuffer/frontend_types.h" #define LTTNG_COMPACT_EVENT_BITS 5 #define LTTNG_COMPACT_TSC_BITS 27 /* * Keep the natural field alignment for _each field_ within this structure if * you ever add/remove a field from this header. Packed attribute is not used * because gcc generates poor code on at least powerpc and mips. Don't ever * let gcc add padding between the structure elements. */ struct packet_header { /* Trace packet header */ uint32_t magic; /* * Trace magic number. * contains endianness information. */ uint8_t uuid[LTTNG_UST_UUID_LEN]; uint32_t stream_id; struct { /* Stream packet context */ uint64_t timestamp_begin; /* Cycle count at subbuffer start */ uint64_t timestamp_end; /* Cycle count at subbuffer end */ uint64_t content_size; /* Size of data in subbuffer */ uint64_t packet_size; /* Subbuffer size (include padding) */ unsigned long events_discarded; /* * Events lost in this subbuffer since * the beginning of the trace. * (may overflow) */ uint32_t cpu_id; /* CPU id associated with stream */ uint8_t header_end; /* End of header */ } ctx; }; static inline uint64_t lib_ring_buffer_clock_read(struct channel *chan) { return trace_clock_read64(); } static inline size_t ctx_get_size(size_t offset, struct lttng_ctx *ctx) { int i; size_t orig_offset = offset; if (caa_likely(!ctx)) return 0; for (i = 0; i < ctx->nr_fields; i++) offset += ctx->fields[i].get_size(offset); return offset - orig_offset; } static inline void ctx_record(struct lttng_ust_lib_ring_buffer_ctx *bufctx, struct lttng_channel *chan, struct lttng_ctx *ctx) { int i; if (caa_likely(!ctx)) return; for (i = 0; i < ctx->nr_fields; i++) ctx->fields[i].record(&ctx->fields[i], bufctx, chan); } /* * record_header_size - Calculate the header size and padding necessary. * @config: ring buffer instance configuration * @chan: channel * @offset: offset in the write buffer * @pre_header_padding: padding to add before the header (output) * @ctx: reservation context * * Returns the event header size (including padding). * * The payload must itself determine its own alignment from the biggest type it * contains. */ static __inline__ unsigned char record_header_size(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, size_t offset, size_t *pre_header_padding, struct lttng_ust_lib_ring_buffer_ctx *ctx) { struct lttng_channel *lttng_chan = channel_get_private(chan); struct lttng_event *event = ctx->priv; size_t orig_offset = offset; size_t padding; switch (lttng_chan->header_type) { case 1: /* compact */ padding = lib_ring_buffer_align(offset, lttng_alignof(uint32_t)); offset += padding; if (!(ctx->rflags & (RING_BUFFER_RFLAG_FULL_TSC | LTTNG_RFLAG_EXTENDED))) { offset += sizeof(uint32_t); /* id and timestamp */ } else { /* Minimum space taken by LTTNG_COMPACT_EVENT_BITS id */ offset += (LTTNG_COMPACT_EVENT_BITS + CHAR_BIT - 1) / CHAR_BIT; /* Align extended struct on largest member */ offset += lib_ring_buffer_align(offset, lttng_alignof(uint64_t)); offset += sizeof(uint32_t); /* id */ offset += lib_ring_buffer_align(offset, lttng_alignof(uint64_t)); offset += sizeof(uint64_t); /* timestamp */ } break; case 2: /* large */ padding = lib_ring_buffer_align(offset, lttng_alignof(uint16_t)); offset += padding; offset += sizeof(uint16_t); if (!(ctx->rflags & (RING_BUFFER_RFLAG_FULL_TSC | LTTNG_RFLAG_EXTENDED))) { offset += lib_ring_buffer_align(offset, lttng_alignof(uint32_t)); offset += sizeof(uint32_t); /* timestamp */ } else { /* Align extended struct on largest member */ offset += lib_ring_buffer_align(offset, lttng_alignof(uint64_t)); offset += sizeof(uint32_t); /* id */ offset += lib_ring_buffer_align(offset, lttng_alignof(uint64_t)); offset += sizeof(uint64_t); /* timestamp */ } break; default: padding = 0; WARN_ON_ONCE(1); } offset += ctx_get_size(offset, event->ctx); offset += ctx_get_size(offset, lttng_chan->ctx); *pre_header_padding = padding; return offset - orig_offset; } #include "../libringbuffer/api.h" #include "lttng-rb-clients.h" static void lttng_write_event_header_slow(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, uint32_t event_id); /* * lttng_write_event_header * * Writes the event header to the offset (already aligned on 32-bits). * * @config: ring buffer instance configuration * @ctx: reservation context * @event_id: event ID */ static __inline__ void lttng_write_event_header(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, uint32_t event_id) { struct lttng_channel *lttng_chan = channel_get_private(ctx->chan); struct lttng_event *event = ctx->priv; if (caa_unlikely(ctx->rflags)) goto slow_path; switch (lttng_chan->header_type) { case 1: /* compact */ { uint32_t id_time = 0; bt_bitfield_write(&id_time, uint32_t, 0, LTTNG_COMPACT_EVENT_BITS, event_id); bt_bitfield_write(&id_time, uint32_t, LTTNG_COMPACT_EVENT_BITS, LTTNG_COMPACT_TSC_BITS, ctx->tsc); lib_ring_buffer_write(config, ctx, &id_time, sizeof(id_time)); break; } case 2: /* large */ { uint32_t timestamp = (uint32_t) ctx->tsc; uint16_t id = event_id; lib_ring_buffer_write(config, ctx, &id, sizeof(id)); lib_ring_buffer_align_ctx(ctx, lttng_alignof(uint32_t)); lib_ring_buffer_write(config, ctx, ×tamp, sizeof(timestamp)); break; } default: WARN_ON_ONCE(1); } ctx_record(ctx, lttng_chan, lttng_chan->ctx); ctx_record(ctx, lttng_chan, event->ctx); lib_ring_buffer_align_ctx(ctx, ctx->largest_align); return; slow_path: lttng_write_event_header_slow(config, ctx, event_id); } static void lttng_write_event_header_slow(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, uint32_t event_id) { struct lttng_channel *lttng_chan = channel_get_private(ctx->chan); struct lttng_event *event = ctx->priv; switch (lttng_chan->header_type) { case 1: /* compact */ if (!(ctx->rflags & (RING_BUFFER_RFLAG_FULL_TSC | LTTNG_RFLAG_EXTENDED))) { uint32_t id_time = 0; bt_bitfield_write(&id_time, uint32_t, 0, LTTNG_COMPACT_EVENT_BITS, event_id); bt_bitfield_write(&id_time, uint32_t, LTTNG_COMPACT_EVENT_BITS, LTTNG_COMPACT_TSC_BITS, ctx->tsc); lib_ring_buffer_write(config, ctx, &id_time, sizeof(id_time)); } else { uint8_t id = 0; uint64_t timestamp = ctx->tsc; bt_bitfield_write(&id, uint8_t, 0, LTTNG_COMPACT_EVENT_BITS, 31); lib_ring_buffer_write(config, ctx, &id, sizeof(id)); /* Align extended struct on largest member */ lib_ring_buffer_align_ctx(ctx, lttng_alignof(uint64_t)); lib_ring_buffer_write(config, ctx, &event_id, sizeof(event_id)); lib_ring_buffer_align_ctx(ctx, lttng_alignof(uint64_t)); lib_ring_buffer_write(config, ctx, ×tamp, sizeof(timestamp)); } break; case 2: /* large */ { if (!(ctx->rflags & (RING_BUFFER_RFLAG_FULL_TSC | LTTNG_RFLAG_EXTENDED))) { uint32_t timestamp = (uint32_t) ctx->tsc; uint16_t id = event_id; lib_ring_buffer_write(config, ctx, &id, sizeof(id)); lib_ring_buffer_align_ctx(ctx, lttng_alignof(uint32_t)); lib_ring_buffer_write(config, ctx, ×tamp, sizeof(timestamp)); } else { uint16_t id = 65535; uint64_t timestamp = ctx->tsc; lib_ring_buffer_write(config, ctx, &id, sizeof(id)); /* Align extended struct on largest member */ lib_ring_buffer_align_ctx(ctx, lttng_alignof(uint64_t)); lib_ring_buffer_write(config, ctx, &event_id, sizeof(event_id)); lib_ring_buffer_align_ctx(ctx, lttng_alignof(uint64_t)); lib_ring_buffer_write(config, ctx, ×tamp, sizeof(timestamp)); } break; } default: WARN_ON_ONCE(1); } ctx_record(ctx, lttng_chan, lttng_chan->ctx); ctx_record(ctx, lttng_chan, event->ctx); lib_ring_buffer_align_ctx(ctx, ctx->largest_align); } static const struct lttng_ust_lib_ring_buffer_config client_config; static uint64_t client_ring_buffer_clock_read(struct channel *chan) { return lib_ring_buffer_clock_read(chan); } static size_t client_record_header_size(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, size_t offset, size_t *pre_header_padding, struct lttng_ust_lib_ring_buffer_ctx *ctx) { return record_header_size(config, chan, offset, pre_header_padding, ctx); } /** * client_packet_header_size - called on buffer-switch to a new sub-buffer * * Return header size without padding after the structure. Don't use packed * structure because gcc generates inefficient code on some architectures * (powerpc, mips..) */ static size_t client_packet_header_size(void) { return offsetof(struct packet_header, ctx.header_end); } static void client_buffer_begin(struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc, unsigned int subbuf_idx, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); struct packet_header *header = (struct packet_header *) lib_ring_buffer_offset_address(&buf->backend, subbuf_idx * chan->backend.subbuf_size, handle); struct lttng_channel *lttng_chan = channel_get_private(chan); header->magic = CTF_MAGIC_NUMBER; memcpy(header->uuid, lttng_chan->uuid, sizeof(lttng_chan->uuid)); header->stream_id = lttng_chan->id; header->ctx.timestamp_begin = tsc; header->ctx.timestamp_end = 0; header->ctx.content_size = ~0ULL; /* for debugging */ header->ctx.packet_size = ~0ULL; header->ctx.events_discarded = 0; header->ctx.cpu_id = buf->backend.cpu; } /* * offset is assumed to never be 0 here : never deliver a completely empty * subbuffer. data_size is between 1 and subbuf_size. */ static void client_buffer_end(struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc, unsigned int subbuf_idx, unsigned long data_size, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); struct packet_header *header = (struct packet_header *) lib_ring_buffer_offset_address(&buf->backend, subbuf_idx * chan->backend.subbuf_size, handle); unsigned long records_lost = 0; header->ctx.timestamp_end = tsc; header->ctx.content_size = (uint64_t) data_size * CHAR_BIT; /* in bits */ header->ctx.packet_size = (uint64_t) PAGE_ALIGN(data_size) * CHAR_BIT; /* in bits */ records_lost += lib_ring_buffer_get_records_lost_full(&client_config, buf); records_lost += lib_ring_buffer_get_records_lost_wrap(&client_config, buf); records_lost += lib_ring_buffer_get_records_lost_big(&client_config, buf); header->ctx.events_discarded = records_lost; } static int client_buffer_create(struct lttng_ust_lib_ring_buffer *buf, void *priv, int cpu, const char *name, struct lttng_ust_shm_handle *handle) { return 0; } static void client_buffer_finalize(struct lttng_ust_lib_ring_buffer *buf, void *priv, int cpu, struct lttng_ust_shm_handle *handle) { } static struct packet_header *client_packet_header(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { return lib_ring_buffer_read_offset_address(&buf->backend, 0, handle); } static int client_timestamp_begin(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *timestamp_begin) { struct packet_header *header; header = client_packet_header(buf, handle); *timestamp_begin = header->ctx.timestamp_begin; return 0; } static int client_timestamp_end(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *timestamp_end) { struct packet_header *header; header = client_packet_header(buf, handle); *timestamp_end = header->ctx.timestamp_end; return 0; } static int client_events_discarded(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *events_discarded) { struct packet_header *header; header = client_packet_header(buf, handle); *events_discarded = header->ctx.events_discarded; return 0; } static int client_content_size(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *content_size) { struct packet_header *header; header = client_packet_header(buf, handle); *content_size = header->ctx.content_size; return 0; } static int client_packet_size(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *packet_size) { struct packet_header *header; header = client_packet_header(buf, handle); *packet_size = header->ctx.packet_size; return 0; } static int client_stream_id(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *stream_id) { struct packet_header *header; header = client_packet_header(buf, handle); *stream_id = header->stream_id; return 0; } static int client_current_timestamp(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle, uint64_t *ts) { struct channel *chan; chan = shmp(handle, handle->chan); *ts = client_ring_buffer_clock_read(chan); return 0; } static const struct lttng_ust_client_lib_ring_buffer_client_cb client_cb = { .parent = { .ring_buffer_clock_read = client_ring_buffer_clock_read, .record_header_size = client_record_header_size, .subbuffer_header_size = client_packet_header_size, .buffer_begin = client_buffer_begin, .buffer_end = client_buffer_end, .buffer_create = client_buffer_create, .buffer_finalize = client_buffer_finalize, }, .timestamp_begin = client_timestamp_begin, .timestamp_end = client_timestamp_end, .events_discarded = client_events_discarded, .content_size = client_content_size, .packet_size = client_packet_size, .stream_id = client_stream_id, .current_timestamp = client_current_timestamp, }; static const struct lttng_ust_lib_ring_buffer_config client_config = { .cb.ring_buffer_clock_read = client_ring_buffer_clock_read, .cb.record_header_size = client_record_header_size, .cb.subbuffer_header_size = client_packet_header_size, .cb.buffer_begin = client_buffer_begin, .cb.buffer_end = client_buffer_end, .cb.buffer_create = client_buffer_create, .cb.buffer_finalize = client_buffer_finalize, .tsc_bits = LTTNG_COMPACT_TSC_BITS, .alloc = RING_BUFFER_ALLOC_PER_CPU, .sync = RING_BUFFER_SYNC_GLOBAL, .mode = RING_BUFFER_MODE_TEMPLATE, .backend = RING_BUFFER_PAGE, .output = RING_BUFFER_MMAP, .oops = RING_BUFFER_OOPS_CONSISTENCY, .ipi = RING_BUFFER_NO_IPI_BARRIER, .wakeup = LTTNG_CLIENT_WAKEUP, .client_type = LTTNG_CLIENT_TYPE, .cb_ptr = &client_cb.parent, }; const struct lttng_ust_client_lib_ring_buffer_client_cb *LTTNG_CLIENT_CALLBACKS = &client_cb; static struct lttng_channel *_channel_create(const char *name, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval, unsigned char *uuid, uint32_t chan_id) { struct lttng_channel chan_priv_init; struct lttng_ust_shm_handle *handle; struct lttng_channel *lttng_chan; void *priv; memset(&chan_priv_init, 0, sizeof(chan_priv_init)); memcpy(chan_priv_init.uuid, uuid, LTTNG_UST_UUID_LEN); chan_priv_init.id = chan_id; handle = channel_create(&client_config, name, &priv, __alignof__(struct lttng_channel), sizeof(struct lttng_channel), &chan_priv_init, buf_addr, subbuf_size, num_subbuf, switch_timer_interval, read_timer_interval); if (!handle) return NULL; lttng_chan = priv; lttng_chan->handle = handle; lttng_chan->chan = shmp(handle, handle->chan); return lttng_chan; } static void lttng_channel_destroy(struct lttng_channel *chan) { channel_destroy(chan->chan, chan->handle, 1); } static int lttng_event_reserve(struct lttng_ust_lib_ring_buffer_ctx *ctx, uint32_t event_id) { struct lttng_channel *lttng_chan = channel_get_private(ctx->chan); int ret, cpu; cpu = lib_ring_buffer_get_cpu(&client_config); if (cpu < 0) return -EPERM; ctx->cpu = cpu; switch (lttng_chan->header_type) { case 1: /* compact */ if (event_id > 30) ctx->rflags |= LTTNG_RFLAG_EXTENDED; break; case 2: /* large */ if (event_id > 65534) ctx->rflags |= LTTNG_RFLAG_EXTENDED; break; default: WARN_ON_ONCE(1); } ret = lib_ring_buffer_reserve(&client_config, ctx); if (ret) goto put; lttng_write_event_header(&client_config, ctx, event_id); return 0; put: lib_ring_buffer_put_cpu(&client_config); return ret; } static void lttng_event_commit(struct lttng_ust_lib_ring_buffer_ctx *ctx) { lib_ring_buffer_commit(&client_config, ctx); lib_ring_buffer_put_cpu(&client_config); } static void lttng_event_write(struct lttng_ust_lib_ring_buffer_ctx *ctx, const void *src, size_t len) { lib_ring_buffer_write(&client_config, ctx, src, len); } #if 0 static wait_queue_head_t *lttng_get_reader_wait_queue(struct channel *chan) { return &chan->read_wait; } static wait_queue_head_t *lttng_get_hp_wait_queue(struct channel *chan) { return &chan->hp_wait; } #endif //0 static int lttng_is_finalized(struct channel *chan) { return lib_ring_buffer_channel_is_finalized(chan); } static int lttng_is_disabled(struct channel *chan) { return lib_ring_buffer_channel_is_disabled(chan); } static int lttng_flush_buffer(struct channel *chan, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer *buf; int cpu; for_each_channel_cpu(cpu, chan) { int shm_fd, wait_fd, wakeup_fd; uint64_t memory_map_size; buf = channel_get_ring_buffer(&client_config, chan, cpu, handle, &shm_fd, &wait_fd, &wakeup_fd, &memory_map_size); lib_ring_buffer_switch(&client_config, buf, SWITCH_ACTIVE, handle); } return 0; } static struct lttng_transport lttng_relay_transport = { .name = "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap", .ops = { .channel_create = _channel_create, .channel_destroy = lttng_channel_destroy, .event_reserve = lttng_event_reserve, .event_commit = lttng_event_commit, .event_write = lttng_event_write, .packet_avail_size = NULL, /* Would be racy anyway */ //.get_reader_wait_queue = lttng_get_reader_wait_queue, //.get_hp_wait_queue = lttng_get_hp_wait_queue, .is_finalized = lttng_is_finalized, .is_disabled = lttng_is_disabled, .flush_buffer = lttng_flush_buffer, }, .client_config = &client_config, }; void RING_BUFFER_MODE_TEMPLATE_INIT(void) { DBG("LTT : ltt ring buffer client \"%s\" init\n", "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap"); lttng_transport_register(<tng_relay_transport); } void RING_BUFFER_MODE_TEMPLATE_EXIT(void) { DBG("LTT : ltt ring buffer client \"%s\" exit\n", "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap"); lttng_transport_unregister(<tng_relay_transport); } lttng-ust-2.4.0/liblttng-ust/wait.h0000644000175000017500000000256011714574014014153 00000000000000#ifndef _UST_WAIT_H #define _UST_WAIT_H /* * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include /* * Wait until "cond" gets true or timeout (in ms). */ #define wait_cond_interruptible_timeout(_cond, _timeout) \ ({ \ int __ret = 0, __pollret; \ int __timeout = _timeout; \ \ for (;;) { \ if (_cond) \ break; \ if (__timeout <= 0) { \ __ret = -ETIMEDOUT; \ break; \ } \ __pollret = poll(NULL, 0, 10); /* wait 10ms */ \ if (__pollret < 0) { \ __ret = -errno; \ break; \ } \ __timeout -= 10; \ } \ __ret; \ }) #endif /* _UST_WAIT_H */ lttng-ust-2.4.0/liblttng-ust/ust-core.c0000644000175000017500000000334312275157353014751 00000000000000/* * ust-core.c * * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include static CDS_LIST_HEAD(lttng_transport_list); struct lttng_transport *lttng_transport_find(const char *name) { struct lttng_transport *transport; cds_list_for_each_entry(transport, <tng_transport_list, node) { if (!strcmp(transport->name, name)) return transport; } return NULL; } /** * lttng_transport_register - LTT transport registration * @transport: transport structure * * Registers a transport which can be used as output to extract the data out of * LTTng. Called with ust_lock held. */ void lttng_transport_register(struct lttng_transport *transport) { cds_list_add_tail(&transport->node, <tng_transport_list); } /** * lttng_transport_unregister - LTT transport unregistration * @transport: transport structure * Called with ust_lock held. */ void lttng_transport_unregister(struct lttng_transport *transport) { cds_list_del(&transport->node); } lttng-ust-2.4.0/liblttng-ust/lttng-filter.c0000644000175000017500000003150012275157353015617 00000000000000/* * lttng-filter.c * * LTTng UST filter code. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include "lttng-filter.h" static const char *opnames[] = { [ FILTER_OP_UNKNOWN ] = "UNKNOWN", [ FILTER_OP_RETURN ] = "RETURN", /* binary */ [ FILTER_OP_MUL ] = "MUL", [ FILTER_OP_DIV ] = "DIV", [ FILTER_OP_MOD ] = "MOD", [ FILTER_OP_PLUS ] = "PLUS", [ FILTER_OP_MINUS ] = "MINUS", [ FILTER_OP_RSHIFT ] = "RSHIFT", [ FILTER_OP_LSHIFT ] = "LSHIFT", [ FILTER_OP_BIN_AND ] = "BIN_AND", [ FILTER_OP_BIN_OR ] = "BIN_OR", [ FILTER_OP_BIN_XOR ] = "BIN_XOR", /* binary comparators */ [ FILTER_OP_EQ ] = "EQ", [ FILTER_OP_NE ] = "NE", [ FILTER_OP_GT ] = "GT", [ FILTER_OP_LT ] = "LT", [ FILTER_OP_GE ] = "GE", [ FILTER_OP_LE ] = "LE", /* string binary comparators */ [ FILTER_OP_EQ_STRING ] = "EQ_STRING", [ FILTER_OP_NE_STRING ] = "NE_STRING", [ FILTER_OP_GT_STRING ] = "GT_STRING", [ FILTER_OP_LT_STRING ] = "LT_STRING", [ FILTER_OP_GE_STRING ] = "GE_STRING", [ FILTER_OP_LE_STRING ] = "LE_STRING", /* s64 binary comparators */ [ FILTER_OP_EQ_S64 ] = "EQ_S64", [ FILTER_OP_NE_S64 ] = "NE_S64", [ FILTER_OP_GT_S64 ] = "GT_S64", [ FILTER_OP_LT_S64 ] = "LT_S64", [ FILTER_OP_GE_S64 ] = "GE_S64", [ FILTER_OP_LE_S64 ] = "LE_S64", /* double binary comparators */ [ FILTER_OP_EQ_DOUBLE ] = "EQ_DOUBLE", [ FILTER_OP_NE_DOUBLE ] = "NE_DOUBLE", [ FILTER_OP_GT_DOUBLE ] = "GT_DOUBLE", [ FILTER_OP_LT_DOUBLE ] = "LT_DOUBLE", [ FILTER_OP_GE_DOUBLE ] = "GE_DOUBLE", [ FILTER_OP_LE_DOUBLE ] = "LE_DOUBLE", /* Mixed S64-double binary comparators */ [ FILTER_OP_EQ_DOUBLE_S64 ] = "EQ_DOUBLE_S64", [ FILTER_OP_NE_DOUBLE_S64 ] = "NE_DOUBLE_S64", [ FILTER_OP_GT_DOUBLE_S64 ] = "GT_DOUBLE_S64", [ FILTER_OP_LT_DOUBLE_S64 ] = "LT_DOUBLE_S64", [ FILTER_OP_GE_DOUBLE_S64 ] = "GE_DOUBLE_S64", [ FILTER_OP_LE_DOUBLE_S64 ] = "LE_DOUBLE_S64", [ FILTER_OP_EQ_S64_DOUBLE ] = "EQ_S64_DOUBLE", [ FILTER_OP_NE_S64_DOUBLE ] = "NE_S64_DOUBLE", [ FILTER_OP_GT_S64_DOUBLE ] = "GT_S64_DOUBLE", [ FILTER_OP_LT_S64_DOUBLE ] = "LT_S64_DOUBLE", [ FILTER_OP_GE_S64_DOUBLE ] = "GE_S64_DOUBLE", [ FILTER_OP_LE_S64_DOUBLE ] = "LE_S64_DOUBLE", /* unary */ [ FILTER_OP_UNARY_PLUS ] = "UNARY_PLUS", [ FILTER_OP_UNARY_MINUS ] = "UNARY_MINUS", [ FILTER_OP_UNARY_NOT ] = "UNARY_NOT", [ FILTER_OP_UNARY_PLUS_S64 ] = "UNARY_PLUS_S64", [ FILTER_OP_UNARY_MINUS_S64 ] = "UNARY_MINUS_S64", [ FILTER_OP_UNARY_NOT_S64 ] = "UNARY_NOT_S64", [ FILTER_OP_UNARY_PLUS_DOUBLE ] = "UNARY_PLUS_DOUBLE", [ FILTER_OP_UNARY_MINUS_DOUBLE ] = "UNARY_MINUS_DOUBLE", [ FILTER_OP_UNARY_NOT_DOUBLE ] = "UNARY_NOT_DOUBLE", /* logical */ [ FILTER_OP_AND ] = "AND", [ FILTER_OP_OR ] = "OR", /* load field ref */ [ FILTER_OP_LOAD_FIELD_REF ] = "LOAD_FIELD_REF", [ FILTER_OP_LOAD_FIELD_REF_STRING ] = "LOAD_FIELD_REF_STRING", [ FILTER_OP_LOAD_FIELD_REF_SEQUENCE ] = "LOAD_FIELD_REF_SEQUENCE", [ FILTER_OP_LOAD_FIELD_REF_S64 ] = "LOAD_FIELD_REF_S64", [ FILTER_OP_LOAD_FIELD_REF_DOUBLE ] = "LOAD_FIELD_REF_DOUBLE", /* load from immediate operand */ [ FILTER_OP_LOAD_STRING ] = "LOAD_STRING", [ FILTER_OP_LOAD_S64 ] = "LOAD_S64", [ FILTER_OP_LOAD_DOUBLE ] = "LOAD_DOUBLE", /* cast */ [ FILTER_OP_CAST_TO_S64 ] = "CAST_TO_S64", [ FILTER_OP_CAST_DOUBLE_TO_S64 ] = "CAST_DOUBLE_TO_S64", [ FILTER_OP_CAST_NOP ] = "CAST_NOP", /* get context ref */ [ FILTER_OP_GET_CONTEXT_REF ] = "GET_CONTEXT_REF", [ FILTER_OP_GET_CONTEXT_REF_STRING ] = "GET_CONTEXT_REF_STRING", [ FILTER_OP_GET_CONTEXT_REF_S64 ] = "GET_CONTEXT_REF_S64", [ FILTER_OP_GET_CONTEXT_REF_DOUBLE ] = "GET_CONTEXT_REF_DOUBLE", }; const char *print_op(enum filter_op op) { if (op >= NR_FILTER_OPS) return "UNKNOWN"; else return opnames[op]; } static int apply_field_reloc(struct lttng_event *event, struct bytecode_runtime *runtime, uint32_t runtime_len, uint32_t reloc_offset, const char *field_name) { const struct lttng_event_desc *desc; const struct lttng_event_field *fields, *field = NULL; unsigned int nr_fields, i; struct field_ref *field_ref; struct load_op *op; uint32_t field_offset = 0; dbg_printf("Apply field reloc: %u %s\n", reloc_offset, field_name); /* Lookup event by name */ desc = event->desc; if (!desc) return -EINVAL; fields = desc->fields; if (!fields) return -EINVAL; nr_fields = desc->nr_fields; for (i = 0; i < nr_fields; i++) { if (!strcmp(fields[i].name, field_name)) { field = &fields[i]; break; } /* compute field offset */ switch (fields[i].type.atype) { case atype_integer: case atype_enum: field_offset += sizeof(int64_t); break; case atype_array: case atype_sequence: field_offset += sizeof(unsigned long); field_offset += sizeof(void *); break; case atype_string: field_offset += sizeof(void *); break; case atype_float: field_offset += sizeof(double); break; default: return -EINVAL; } } if (!field) return -EINVAL; /* Check if field offset is too large for 16-bit offset */ if (field_offset > FILTER_BYTECODE_MAX_LEN - 1) return -EINVAL; /* set type */ op = (struct load_op *) &runtime->data[reloc_offset]; field_ref = (struct field_ref *) op->data; switch (field->type.atype) { case atype_integer: case atype_enum: op->op = FILTER_OP_LOAD_FIELD_REF_S64; break; case atype_array: case atype_sequence: op->op = FILTER_OP_LOAD_FIELD_REF_SEQUENCE; break; case atype_string: op->op = FILTER_OP_LOAD_FIELD_REF_STRING; break; case atype_float: op->op = FILTER_OP_LOAD_FIELD_REF_DOUBLE; break; default: return -EINVAL; } /* set offset */ field_ref->offset = (uint16_t) field_offset; return 0; } static int apply_context_reloc(struct lttng_event *event, struct bytecode_runtime *runtime, uint32_t runtime_len, uint32_t reloc_offset, const char *context_name) { struct field_ref *field_ref; struct load_op *op; struct lttng_ctx_field *ctx_field; int idx; dbg_printf("Apply context reloc: %u %s\n", reloc_offset, context_name); /* Get context index */ idx = lttng_get_context_index(lttng_static_ctx, context_name); if (idx < 0) return -ENOENT; /* Check if idx is too large for 16-bit offset */ if (idx > FILTER_BYTECODE_MAX_LEN - 1) return -EINVAL; /* Get context return type */ ctx_field = <tng_static_ctx->fields[idx]; op = (struct load_op *) &runtime->data[reloc_offset]; field_ref = (struct field_ref *) op->data; switch (ctx_field->event_field.type.atype) { case atype_integer: case atype_enum: op->op = FILTER_OP_GET_CONTEXT_REF_S64; break; /* Sequence and array supported as string */ case atype_string: case atype_array: case atype_sequence: op->op = FILTER_OP_GET_CONTEXT_REF_STRING; break; case atype_float: op->op = FILTER_OP_GET_CONTEXT_REF_DOUBLE; break; default: return -EINVAL; } /* set offset to context index within channel contexts */ field_ref->offset = (uint16_t) idx; return 0; } static int apply_reloc(struct lttng_event *event, struct bytecode_runtime *runtime, uint32_t runtime_len, uint32_t reloc_offset, const char *name) { struct load_op *op; dbg_printf("Apply reloc: %u %s\n", reloc_offset, name); /* Ensure that the reloc is within the code */ if (runtime_len - reloc_offset < sizeof(uint16_t)) return -EINVAL; op = (struct load_op *) &runtime->data[reloc_offset]; switch (op->op) { case FILTER_OP_LOAD_FIELD_REF: return apply_field_reloc(event, runtime, runtime_len, reloc_offset, name); case FILTER_OP_GET_CONTEXT_REF: return apply_context_reloc(event, runtime, runtime_len, reloc_offset, name); default: ERR("Unknown reloc op type %u\n", op->op); return -EINVAL; } return 0; } static int bytecode_is_linked(struct lttng_ust_filter_bytecode_node *filter_bytecode, struct lttng_event *event) { struct lttng_bytecode_runtime *bc_runtime; cds_list_for_each_entry(bc_runtime, &event->bytecode_runtime_head, node) { if (bc_runtime->bc == filter_bytecode) return 1; } return 0; } /* * Take a bytecode with reloc table and link it to an event to create a * bytecode runtime. */ static int _lttng_filter_event_link_bytecode(struct lttng_event *event, struct lttng_ust_filter_bytecode_node *filter_bytecode, struct cds_list_head *insert_loc) { int ret, offset, next_offset; struct bytecode_runtime *runtime = NULL; size_t runtime_alloc_len; if (!filter_bytecode) return 0; /* Bytecode already linked */ if (bytecode_is_linked(filter_bytecode, event)) return 0; dbg_printf("Linking...\n"); /* We don't need the reloc table in the runtime */ runtime_alloc_len = sizeof(*runtime) + filter_bytecode->bc.reloc_offset; runtime = zmalloc(runtime_alloc_len); if (!runtime) { ret = -ENOMEM; goto alloc_error; } runtime->p.bc = filter_bytecode; runtime->len = filter_bytecode->bc.reloc_offset; /* copy original bytecode */ memcpy(runtime->data, filter_bytecode->bc.data, runtime->len); /* * apply relocs. Those are a uint16_t (offset in bytecode) * followed by a string (field name). */ for (offset = filter_bytecode->bc.reloc_offset; offset < filter_bytecode->bc.len; offset = next_offset) { uint16_t reloc_offset = *(uint16_t *) &filter_bytecode->bc.data[offset]; const char *name = (const char *) &filter_bytecode->bc.data[offset + sizeof(uint16_t)]; ret = apply_reloc(event, runtime, runtime->len, reloc_offset, name); if (ret) { goto link_error; } next_offset = offset + sizeof(uint16_t) + strlen(name) + 1; } /* Validate bytecode */ ret = lttng_filter_validate_bytecode(runtime); if (ret) { goto link_error; } /* Specialize bytecode */ ret = lttng_filter_specialize_bytecode(runtime); if (ret) { goto link_error; } runtime->p.filter = lttng_filter_interpret_bytecode; runtime->p.link_failed = 0; cds_list_add_rcu(&runtime->p.node, insert_loc); dbg_printf("Linking successful.\n"); return 0; link_error: runtime->p.filter = lttng_filter_false; runtime->p.link_failed = 1; cds_list_add_rcu(&runtime->p.node, insert_loc); alloc_error: dbg_printf("Linking failed.\n"); return ret; } void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime) { struct lttng_ust_filter_bytecode_node *bc = runtime->bc; if (!bc->enabler->enabled || runtime->link_failed) runtime->filter = lttng_filter_false; else runtime->filter = lttng_filter_interpret_bytecode; } /* * Link bytecode for all enablers referenced by an event. */ void lttng_enabler_event_link_bytecode(struct lttng_event *event, struct lttng_enabler *enabler) { struct lttng_ust_filter_bytecode_node *bc; struct lttng_bytecode_runtime *runtime; /* Can only be called for events with desc attached */ assert(event->desc); /* Link each bytecode. */ cds_list_for_each_entry(bc, &enabler->filter_bytecode_head, node) { int found = 0, ret; struct cds_list_head *insert_loc; cds_list_for_each_entry(runtime, &event->bytecode_runtime_head, node) { if (runtime->bc == bc) { found = 1; break; } } /* Skip bytecode already linked */ if (found) continue; /* * Insert at specified priority (seqnum) in increasing * order. */ cds_list_for_each_entry_reverse(runtime, &event->bytecode_runtime_head, node) { if (runtime->bc->bc.seqnum < bc->bc.seqnum) { /* insert here */ insert_loc = &runtime->node; goto add_within; } } /* Add to head to list */ insert_loc = &event->bytecode_runtime_head; add_within: dbg_printf("linking bytecode\n"); ret = _lttng_filter_event_link_bytecode(event, bc, insert_loc); if (ret) { dbg_printf("[lttng filter] warning: cannot link event bytecode\n"); } } } /* * We own the filter_bytecode if we return success. */ int lttng_filter_enabler_attach_bytecode(struct lttng_enabler *enabler, struct lttng_ust_filter_bytecode_node *filter_bytecode) { cds_list_add(&filter_bytecode->node, &enabler->filter_bytecode_head); return 0; } void lttng_free_enabler_filter_bytecode(struct lttng_enabler *enabler) { struct lttng_ust_filter_bytecode_node *filter_bytecode, *tmp; cds_list_for_each_entry_safe(filter_bytecode, tmp, &enabler->filter_bytecode_head, node) { free(filter_bytecode); } } void lttng_free_event_filter_runtime(struct lttng_event *event) { struct bytecode_runtime *runtime, *tmp; cds_list_for_each_entry_safe(runtime, tmp, &event->bytecode_runtime_head, p.node) { free(runtime); } } lttng-ust-2.4.0/liblttng-ust/lttng-context-vtid.c0000644000175000017500000000632012275157353016764 00000000000000/* * lttng-context-vtid.c * * LTTng UST vtid context. * * Copyright (C) 2009-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include "lttng-tracer-core.h" /* * We cache the result to ensure we don't trigger a system call for * each event. */ static DEFINE_URCU_TLS(pid_t, cached_vtid); /* * Upon fork or clone, the TID assigned to our thread is not the same as * we kept in cache. Luckily, we are the only thread surviving in the * child process, so we can simply clear our cached version. */ void lttng_context_vtid_reset(void) { URCU_TLS(cached_vtid) = 0; } static size_t vtid_get_size(size_t offset) { size_t size = 0; size += lib_ring_buffer_align(offset, lttng_alignof(pid_t)); size += sizeof(pid_t); return size; } static void vtid_record(struct lttng_ctx_field *field, struct lttng_ust_lib_ring_buffer_ctx *ctx, struct lttng_channel *chan) { if (caa_unlikely(!URCU_TLS(cached_vtid))) URCU_TLS(cached_vtid) = gettid(); lib_ring_buffer_align_ctx(ctx, lttng_alignof(URCU_TLS(cached_vtid))); chan->ops->event_write(ctx, &URCU_TLS(cached_vtid), sizeof(URCU_TLS(cached_vtid))); } static void vtid_get_value(struct lttng_ctx_field *field, union lttng_ctx_value *value) { if (caa_unlikely(!URCU_TLS(cached_vtid))) URCU_TLS(cached_vtid) = gettid(); value->s64 = URCU_TLS(cached_vtid); } int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx) { struct lttng_ctx_field *field; field = lttng_append_context(ctx); if (!field) return -ENOMEM; if (lttng_find_context(*ctx, "vtid")) { lttng_remove_context_field(ctx, field); return -EEXIST; } field->event_field.name = "vtid"; field->event_field.type.atype = atype_integer; field->event_field.type.u.basic.integer.size = sizeof(pid_t) * CHAR_BIT; field->event_field.type.u.basic.integer.alignment = lttng_alignof(pid_t) * CHAR_BIT; field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(pid_t); field->event_field.type.u.basic.integer.reverse_byte_order = 0; field->event_field.type.u.basic.integer.base = 10; field->event_field.type.u.basic.integer.encoding = lttng_encode_none; field->get_size = vtid_get_size; field->record = vtid_record; field->get_value = vtid_get_value; return 0; } /* * Force a read (imply TLS fixup for dlopen) of TLS variables. */ void lttng_fixup_vtid_tls(void) { asm volatile ("" : : "m" (URCU_TLS(cached_vtid))); } lttng-ust-2.4.0/liblttng-ust/lttng-ust-uuid.h0000644000175000017500000000253612275157353016125 00000000000000#ifndef _LTTNG_UST_UUID_H #define _LTTNG_UST_UUID_H /* * Copyright (C) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include /* For LTTNG_UST_UUID_LEN */ /* * Includes final \0. */ #define LTTNG_UST_UUID_STR_LEN 37 #endif /* _LTTNG_UST_UUID_H */ lttng-ust-2.4.0/liblttng-ust/compat.h0000644000175000017500000000311112167611342014462 00000000000000#ifndef _UST_COMPAT_H #define _UST_COMPAT_H /* * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* * lttng_ust_getprocname. */ #ifdef __linux__ #include #define LTTNG_UST_PROCNAME_LEN 17 static inline void lttng_ust_getprocname(char *name) { (void) prctl(PR_GET_NAME, (unsigned long) name, 0, 0, 0); } #elif defined(__FreeBSD__) #include #include /* * Limit imposed by Linux UST-sessiond ABI. */ #define LTTNG_UST_PROCNAME_LEN 17 /* * Acts like linux prctl, the string is not necessarily 0-terminated if * 16-byte long. */ static inline void lttng_ust_getprocname(char *name) { const char *bsd_name; bsd_name = getprogname(); if (!bsd_name) name[0] = '\0'; else strncpy(name, bsd_name, LTTNG_UST_PROCNAME_LEN - 1); } #endif #include #ifndef ENODATA #define ENODATA ENOMSG #endif #endif /* _UST_COMPAT_H */ lttng-ust-2.4.0/liblttng-ust/lttng-filter.h0000644000175000017500000001040612200722032015602 00000000000000#ifndef _LTTNG_FILTER_H #define _LTTNG_FILTER_H /* * lttng-filter.h * * LTTng UST filter header. * * Copyright (C) 2010-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include "filter-bytecode.h" /* Filter stack length, in number of entries */ #define FILTER_STACK_LEN 10 /* includes 2 dummy */ #define FILTER_STACK_EMPTY 1 #ifndef min_t #define min_t(type, a, b) \ ((type) (a) < (type) (b) ? (type) (a) : (type) (b)) #endif #ifndef likely #define likely(x) __builtin_expect(!!(x), 1) #endif #ifndef unlikely #define unlikely(x) __builtin_expect(!!(x), 0) #endif #ifdef DEBUG #define dbg_printf(fmt, args...) \ printf("[debug bytecode in %s:%s@%u] " fmt, \ __FILE__, __func__, __LINE__, ## args) #else #define dbg_printf(fmt, args...) \ do { \ /* do nothing but check printf format */ \ if (0) \ printf("[debug bytecode in %s:%s@%u] " fmt, \ __FILE__, __func__, __LINE__, ## args); \ } while (0) #endif /* Linked bytecode. Child of struct lttng_bytecode_runtime. */ struct bytecode_runtime { struct lttng_bytecode_runtime p; uint16_t len; char data[0]; }; enum entry_type { REG_S64, REG_DOUBLE, REG_STRING, REG_TYPE_UNKNOWN, }; /* Validation stack */ struct vstack_entry { enum entry_type type; }; struct vstack { int top; /* top of stack */ struct vstack_entry e[FILTER_STACK_LEN]; }; static inline void vstack_init(struct vstack *stack) { stack->top = -1; } static inline struct vstack_entry *vstack_ax(struct vstack *stack) { if (unlikely(stack->top < 0)) return NULL; return &stack->e[stack->top]; } static inline struct vstack_entry *vstack_bx(struct vstack *stack) { if (unlikely(stack->top < 1)) return NULL; return &stack->e[stack->top - 1]; } static inline int vstack_push(struct vstack *stack) { if (stack->top >= FILTER_STACK_LEN - 1) { ERR("Stack full\n"); return -EINVAL; } ++stack->top; return 0; } static inline int vstack_pop(struct vstack *stack) { if (unlikely(stack->top < 0)) { ERR("Stack empty\n"); return -EINVAL; } stack->top--; return 0; } /* Execution stack */ struct estack_entry { union { int64_t v; double d; struct { const char *str; size_t seq_len; int literal; /* is string literal ? */ } s; } u; }; struct estack { int top; /* top of stack */ struct estack_entry e[FILTER_STACK_LEN]; }; #define estack_ax_v ax #define estack_bx_v bx #define estack_ax(stack, top) \ ({ \ assert((top) > FILTER_STACK_EMPTY); \ &(stack)->e[top]; \ }) #define estack_bx(stack, top) \ ({ \ assert((top) > FILTER_STACK_EMPTY + 1); \ &(stack)->e[(top) - 1]; \ }) #define estack_push(stack, top, ax, bx) \ do { \ assert((top) < FILTER_STACK_LEN - 1); \ (stack)->e[(top) - 1].u.v = (bx); \ (bx) = (ax); \ ++(top); \ } while (0) #define estack_pop(stack, top, ax, bx) \ do { \ assert((top) > FILTER_STACK_EMPTY); \ (ax) = (bx); \ (bx) = (stack)->e[(top) - 2].u.v; \ (top)--; \ } while (0) const char *print_op(enum filter_op op); int lttng_filter_validate_bytecode(struct bytecode_runtime *bytecode); int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode); uint64_t lttng_filter_false(void *filter_data, const char *filter_stack_data); uint64_t lttng_filter_interpret_bytecode(void *filter_data, const char *filter_stack_data); #endif /* _LTTNG_FILTER_H */ lttng-ust-2.4.0/snprintf/0000755000175000017500000000000012304153161012316 500000000000000lttng-ust-2.4.0/snprintf/mbrtowc_sb.c0000644000175000017500000000404511654550516014562 00000000000000/* $OpenBSD: mbrtowc_sb.c,v 1.4 2005/11/27 20:03:06 cloder Exp $ */ /* $NetBSD: multibyte_sb.c,v 1.4 2003/08/07 16:43:04 agc Exp $ */ /* * Copyright (c) 1991 The Regents of the University of California. * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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 #include #include /*ARGSUSED*/ size_t ust_safe_mbrtowc(wchar_t *pwc, const char *s, size_t n, mbstate_t *ps) { /* pwc may be NULL */ /* s may be NULL */ /* ps appears to be unused */ if (s == NULL) return 0; if (n == 0) return (size_t)-1; if (pwc) *pwc = (wchar_t)(unsigned char)*s; return (*s != '\0'); } lttng-ust-2.4.0/snprintf/snprintf.c0000644000175000017500000000517312275157353014271 00000000000000/* $OpenBSD: snprintf.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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 #include #include #include #include "local.h" #include "ust_snprintf.h" #define DUMMY_LEN 1 int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap) { int ret; char dummy[DUMMY_LEN]; LTTNG_UST_LFILE f; struct __lttng_ust_sfileext fext; /* While snprintf(3) specifies size_t stdio uses an int internally */ if (n > INT_MAX) n = INT_MAX; /* Stdio internals do not deal correctly with zero length buffer */ if (n == 0) { str = dummy; n = DUMMY_LEN; } _FILEEXT_SETUP(&f, &fext); f._file = -1; f._flags = __SWR | __SSTR; f._bf._base = f._p = (unsigned char *)str; f._bf._size = f._w = n - 1; ret = ust_safe_vfprintf(&f, fmt, ap); *f._p = '\0'; return (ret); } int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...) { va_list ap; int ret; va_start(ap, fmt); ret = ust_safe_vsnprintf(str, n, fmt, ap); va_end(ap); return ret; } lttng-ust-2.4.0/snprintf/fvwrite.h0000644000175000017500000000374512167611342014115 00000000000000/* $OpenBSD: fvwrite.h,v 1.5 2003/06/02 20:18:37 millert Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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. */ /* * I/O descriptors for __sfvwrite(). */ struct __lttng_ust_siov { void *iov_base; size_t iov_len; }; struct __lttng_ust_suio { struct __lttng_ust_siov *uio_iov; int uio_iovcnt; int uio_resid; }; extern int __sfvwrite(LTTNG_UST_LFILE *, struct __lttng_ust_suio *); lttng-ust-2.4.0/snprintf/wcio.h0000644000175000017500000000502011654550516013361 00000000000000/* $OpenBSD: wcio.h,v 1.1 2005/06/17 20:40:32 espie Exp $ */ /* $NetBSD: wcio.h,v 1.3 2003/01/18 11:30:00 thorpej Exp $ */ /*- * Copyright (c)2001 Citrus Project, * 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. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $Citrus$ */ #ifndef _WCIO_H_ #define _WCIO_H_ /* minimal requirement of SUSv2 */ #define WCIO_UNGETWC_BUFSIZE 1 struct wchar_io_data { mbstate_t wcio_mbstate_in; mbstate_t wcio_mbstate_out; wchar_t wcio_ungetwc_buf[WCIO_UNGETWC_BUFSIZE]; size_t wcio_ungetwc_inbuf; int wcio_mode; /* orientation */ }; #define WCIO_GET(fp) \ (_EXT(fp) ? &(_EXT(fp)->_wcio) : (struct wchar_io_data *)0) #define WCIO_GET_NONULL(fp) \ (&(_EXT(fp)->_wcio)) #define _SET_ORIENTATION(fp, mode) \ do {\ struct wchar_io_data *_wcio = WCIO_GET(fp); \ if (_wcio && _wcio->wcio_mode == 0) \ _wcio->wcio_mode = (mode);\ } while (0) /* * WCIO_FREE should be called by fclose */ #define WCIO_FREE(fp) \ do {\ struct wchar_io_data *_wcio = WCIO_GET(fp); \ if (_wcio) { \ _wcio->wcio_mode = 0;\ _wcio->wcio_ungetwc_inbuf = 0;\ } \ } while (0) #define WCIO_FREEUB(fp) \ do {\ struct wchar_io_data *_wcio = WCIO_GET(fp); \ if (_wcio) { \ _wcio->wcio_ungetwc_inbuf = 0;\ } \ } while (0) #define WCIO_INIT(fp) \ memset(WCIO_GET_NONULL(fp), 0, sizeof(struct wchar_io_data)) #endif /*_WCIO_H_*/ lttng-ust-2.4.0/snprintf/vfprintf.c0000644000175000017500000010157012275157353014262 00000000000000/* $OpenBSD: vfprintf.c,v 1.57 2009/10/28 21:15:02 naddy Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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. */ /* * Actual printf innards. * * This code is large and complicated... */ //#define FLOATING_POINT #include #include #include #include #include #include #include #include #include #include #include #include "local.h" #include "fvwrite.h" union arg { int intarg; unsigned int uintarg; long longarg; unsigned long ulongarg; long long longlongarg; unsigned long long ulonglongarg; ptrdiff_t ptrdiffarg; size_t sizearg; size_t ssizearg; intmax_t intmaxarg; uintmax_t uintmaxarg; void *pvoidarg; char *pchararg; signed char *pschararg; short *pshortarg; int *pintarg; long *plongarg; long long *plonglongarg; ptrdiff_t *pptrdiffarg; ssize_t *pssizearg; intmax_t *pintmaxarg; #ifdef FLOATING_POINT double doublearg; long double longdoublearg; #endif }; static int __find_arguments(const char *fmt0, va_list ap, union arg **argtable, size_t *argtablesiz); static int __grow_type_table(unsigned char **typetable, int *tablesize); /* * Flush out all the vectors defined by the given uio, * then reset it so that it can be reused. */ static int __sprint(LTTNG_UST_LFILE *fp, struct __lttng_ust_suio *uio) { int err; if (uio->uio_resid == 0) { uio->uio_iovcnt = 0; return (0); } err = __sfvwrite(fp, uio); uio->uio_resid = 0; uio->uio_iovcnt = 0; return (err); } /* * Helper function for `fprintf to unbuffered unix file': creates a * temporary buffer. We only work on write-only files; this avoids * worries about ungetc buffers and so forth. */ //static int //__sbprintf(LTTNG_UST_LFILE *fp, const char *fmt, va_list ap) //{ // int ret; // LTTNG_UST_LFILE fake; // struct __sfileext fakeext; // unsigned char buf[BUFSIZ]; // // _FILEEXT_SETUP(&fake, &fakeext); // /* copy the important variables */ // fake._flags = fp->_flags & ~__SNBF; // fake._file = fp->_file; // fake._cookie = fp->_cookie; // fake._write = fp->_write; // // /* set up the buffer */ // fake._bf._base = fake._p = buf; // fake._bf._size = fake._w = sizeof(buf); // fake._lbfsize = 0; /* not actually used, but Just In Case */ // // /* do the work, then copy any error status */ // ret = ust_safe_vfprintf(&fake, fmt, ap); // if (ret >= 0 && fflush(&fake)) // ret = EOF; // if (fake._flags & __SERR) // fp->_flags |= __SERR; // return (ret); //} #ifdef FLOATING_POINT #include #include #include #include "floatio.h" #define DEFPREC 6 extern char *__dtoa(double, int, int, int *, int *, char **); extern void __freedtoa(char *); static int exponent(char *, int, int); #endif /* FLOATING_POINT */ /* * The size of the buffer we use as scratch space for integer * conversions, among other things. Technically, we would need the * most space for base 10 conversions with thousands' grouping * characters between each pair of digits. 100 bytes is a * conservative overestimate even for a 128-bit uintmax_t. */ #define BUF 100 #define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */ /* * Macros for converting digits to letters and vice versa */ #define to_digit(c) ((c) - '0') #define is_digit(c) ((unsigned)to_digit(c) <= 9) #define to_char(n) ((n) + '0') /* * Flags used during conversion. */ #define ALT 0x0001 /* alternate form */ #define LADJUST 0x0004 /* left adjustment */ #define LONGDBL 0x0008 /* long double; unimplemented */ #define LONGINT 0x0010 /* long integer */ #define LLONGINT 0x0020 /* long long integer */ #define SHORTINT 0x0040 /* short integer */ #define ZEROPAD 0x0080 /* zero (as opposed to blank) pad */ #define FPT 0x0100 /* Floating point number */ #define PTRINT 0x0200 /* (unsigned) ptrdiff_t */ #define SIZEINT 0x0400 /* (signed) size_t */ #define CHARINT 0x0800 /* 8 bit integer */ #define MAXINT 0x1000 /* largest integer size (intmax_t) */ int ust_safe_vfprintf(LTTNG_UST_LFILE *fp, const char *fmt0, va_list ap) { char *fmt; /* format string */ int ch; /* character from fmt */ int n, n2; /* handy integers (short term usage) */ char *cp; /* handy char pointer (short term usage) */ struct __lttng_ust_siov *iovp; /* for PRINT macro */ int flags; /* flags as above */ int ret; /* return value accumulator */ int width; /* width from format (%8d), or 0 */ int prec; /* precision from format; <0 for N/A */ char sign; /* sign prefix (' ', '+', '-', or \0) */ wchar_t wc; mbstate_t ps; #ifdef FLOATING_POINT /* * We can decompose the printed representation of floating * point numbers into several parts, some of which may be empty: * * [+|-| ] [0x|0X] MMM . NNN [e|E|p|P] [+|-] ZZ * A B ---C--- D E F * * A: 'sign' holds this value if present; '\0' otherwise * B: ox[1] holds the 'x' or 'X'; '\0' if not hexadecimal * C: cp points to the string MMMNNN. Leading and trailing * zeros are not in the string and must be added. * D: expchar holds this character; '\0' if no exponent, e.g. %f * F: at least two digits for decimal, at least one digit for hex */ char *decimal_point = localeconv()->decimal_point; int signflag; /* true if float is negative */ union { /* floating point arguments %[aAeEfFgG] */ double dbl; long double ldbl; } fparg; int expt; /* integer value of exponent */ char expchar; /* exponent character: [eEpP\0] */ char *dtoaend; /* pointer to end of converted digits */ int expsize; /* character count for expstr */ int lead; /* sig figs before decimal or group sep */ int ndig; /* actual number of digits returned by dtoa */ char expstr[MAXEXPDIG+2]; /* buffer for exponent string: e+ZZZ */ char *dtoaresult = NULL; #endif uintmax_t _umax; /* integer arguments %[diouxX] */ enum { OCT, DEC, HEX } base; /* base for %[diouxX] conversion */ int dprec; /* a copy of prec if %[diouxX], 0 otherwise */ int realsz; /* field size expanded by dprec */ int size; /* size of converted field or string */ const char *xdigs = NULL; /* digits for %[xX] conversion */ #define NIOV 8 struct __lttng_ust_suio uio; /* output information: summary */ struct __lttng_ust_siov iov[NIOV];/* ... and individual io vectors */ char buf[BUF]; /* buffer with space for digits of uintmax_t */ char ox[2]; /* space for 0x; ox[1] is either x, X, or \0 */ union arg *argtable; /* args, built due to positional arg */ union arg statargtable[STATIC_ARG_TBL_SIZE]; size_t argtablesiz; int nextarg; /* 1-based argument index */ va_list orgap; /* original argument pointer */ /* * Choose PADSIZE to trade efficiency vs. size. If larger printf * fields occur frequently, increase PADSIZE and make the initialisers * below longer. */ #define PADSIZE 16 /* pad chunk size */ static char blanks[PADSIZE] = {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '}; static char zeroes[PADSIZE] = {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'}; static const char xdigs_lower[16] = "0123456789abcdef"; static const char xdigs_upper[16] = "0123456789ABCDEF"; /* * BEWARE, these `goto error' on error, and PAD uses `n'. */ #define PRINT(ptr, len) do { \ iovp->iov_base = (ptr); \ iovp->iov_len = (len); \ uio.uio_resid += (len); \ iovp++; \ if (++uio.uio_iovcnt >= NIOV) { \ if (__sprint(fp, &uio)) \ goto error; \ iovp = iov; \ } \ } while (0) #define PAD(howmany, with) do { \ if ((n = (howmany)) > 0) { \ while (n > PADSIZE) { \ PRINT(with, PADSIZE); \ n -= PADSIZE; \ } \ PRINT(with, n); \ } \ } while (0) #define PRINTANDPAD(p, ep, len, with) do { \ n2 = (ep) - (p); \ if (n2 > (len)) \ n2 = (len); \ if (n2 > 0) \ PRINT((p), n2); \ PAD((len) - (n2 > 0 ? n2 : 0), (with)); \ } while(0) #define FLUSH() do { \ if (uio.uio_resid && __sprint(fp, &uio)) \ goto error; \ uio.uio_iovcnt = 0; \ iovp = iov; \ } while (0) /* * To extend shorts properly, we need both signed and unsigned * argument extraction methods. */ #define SARG() \ ((intmax_t)(flags&MAXINT ? GETARG(intmax_t) : \ flags&LLONGINT ? GETARG(long long) : \ flags&LONGINT ? GETARG(long) : \ flags&PTRINT ? GETARG(ptrdiff_t) : \ flags&SIZEINT ? GETARG(ssize_t) : \ flags&SHORTINT ? (short)GETARG(int) : \ flags&CHARINT ? (__signed char)GETARG(int) : \ GETARG(int))) #define UARG() \ ((uintmax_t)(flags&MAXINT ? GETARG(uintmax_t) : \ flags&LLONGINT ? GETARG(unsigned long long) : \ flags&LONGINT ? GETARG(unsigned long) : \ flags&PTRINT ? (uintptr_t)GETARG(ptrdiff_t) : /* XXX */ \ flags&SIZEINT ? GETARG(size_t) : \ flags&SHORTINT ? (unsigned short)GETARG(int) : \ flags&CHARINT ? (unsigned char)GETARG(int) : \ GETARG(unsigned int))) /* * Append a digit to a value and check for overflow. */ #define APPEND_DIGIT(val, dig) do { \ if ((val) > INT_MAX / 10) \ goto overflow; \ (val) *= 10; \ if ((val) > INT_MAX - to_digit((dig))) \ goto overflow; \ (val) += to_digit((dig)); \ } while (0) /* * Get * arguments, including the form *nn$. Preserve the nextarg * that the argument can be gotten once the type is determined. */ #define GETASTER(val) \ n2 = 0; \ cp = fmt; \ while (is_digit(*cp)) { \ APPEND_DIGIT(n2, *cp); \ cp++; \ } \ if (*cp == '$') { \ int hold = nextarg; \ if (argtable == NULL) { \ argtable = statargtable; \ __find_arguments(fmt0, orgap, &argtable, &argtablesiz); \ } \ nextarg = n2; \ val = GETARG(int); \ nextarg = hold; \ fmt = ++cp; \ } else { \ val = GETARG(int); \ } /* * Get the argument indexed by nextarg. If the argument table is * built, use it to get the argument. If its not, get the next * argument (and arguments must be gotten sequentially). */ #define GETARG(type) \ ((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : \ (nextarg++, va_arg(ap, type))) _SET_ORIENTATION(fp, -1); /* sorry, fprintf(read_only_file, "") returns EOF, not 0 */ if (cantwrite(fp)) { errno = EBADF; return (EOF); } /* optimise fprintf(stderr) (and other unbuffered Unix files) */ // if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) && // fp->_file >= 0) // return (__sbprintf(fp, fmt0, ap)); fmt = (char *)fmt0; argtable = NULL; nextarg = 1; va_copy(orgap, ap); uio.uio_iov = iovp = iov; uio.uio_resid = 0; uio.uio_iovcnt = 0; ret = 0; memset(&ps, 0, sizeof(ps)); /* * Scan the format for conversions (`%' character). */ for (;;) { cp = fmt; while ((n = ust_safe_mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) { fmt += n; if (wc == '%') { fmt--; break; } } if (fmt != cp) { ptrdiff_t m = fmt - cp; if (m < 0 || m > INT_MAX - ret) goto overflow; PRINT(cp, m); ret += m; } if (n <= 0) goto done; fmt++; /* skip over '%' */ flags = 0; dprec = 0; width = 0; prec = -1; sign = '\0'; ox[1] = '\0'; rflag: ch = *fmt++; reswitch: switch (ch) { case ' ': /* * ``If the space and + flags both appear, the space * flag will be ignored.'' * -- ANSI X3J11 */ if (!sign) sign = ' '; goto rflag; case '#': flags |= ALT; goto rflag; case '\'': /* grouping not implemented */ goto rflag; case '*': /* * ``A negative field width argument is taken as a * - flag followed by a positive field width.'' * -- ANSI X3J11 * They don't exclude field widths read from args. */ GETASTER(width); if (width >= 0) goto rflag; if (width == INT_MIN) goto overflow; width = -width; /* FALLTHROUGH */ case '-': flags |= LADJUST; goto rflag; case '+': sign = '+'; goto rflag; case '.': if ((ch = *fmt++) == '*') { GETASTER(n); prec = n < 0 ? -1 : n; goto rflag; } n = 0; while (is_digit(ch)) { APPEND_DIGIT(n, ch); ch = *fmt++; } if (ch == '$') { nextarg = n; if (argtable == NULL) { argtable = statargtable; __find_arguments(fmt0, orgap, &argtable, &argtablesiz); } goto rflag; } prec = n; goto reswitch; case '0': /* * ``Note that 0 is taken as a flag, not as the * beginning of a field width.'' * -- ANSI X3J11 */ flags |= ZEROPAD; goto rflag; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': n = 0; do { APPEND_DIGIT(n, ch); ch = *fmt++; } while (is_digit(ch)); if (ch == '$') { nextarg = n; if (argtable == NULL) { argtable = statargtable; __find_arguments(fmt0, orgap, &argtable, &argtablesiz); } goto rflag; } width = n; goto reswitch; #ifdef FLOATING_POINT case 'L': flags |= LONGDBL; goto rflag; #endif case 'h': if (*fmt == 'h') { fmt++; flags |= CHARINT; } else { flags |= SHORTINT; } goto rflag; case 'j': flags |= MAXINT; goto rflag; case 'l': if (*fmt == 'l') { fmt++; flags |= LLONGINT; } else { flags |= LONGINT; } goto rflag; case 'q': flags |= LLONGINT; goto rflag; case 't': flags |= PTRINT; goto rflag; case 'z': flags |= SIZEINT; goto rflag; case 'c': *(cp = buf) = GETARG(int); size = 1; sign = '\0'; break; case 'D': flags |= LONGINT; /*FALLTHROUGH*/ case 'd': case 'i': _umax = SARG(); if ((intmax_t)_umax < 0) { _umax = -_umax; sign = '-'; } base = DEC; goto number; #ifdef FLOATING_POINT case 'a': case 'A': if (ch == 'a') { ox[1] = 'x'; xdigs = xdigs_lower; expchar = 'p'; } else { ox[1] = 'X'; xdigs = xdigs_upper; expchar = 'P'; } if (prec >= 0) prec++; if (dtoaresult) __freedtoa(dtoaresult); if (flags & LONGDBL) { fparg.ldbl = GETARG(long double); dtoaresult = cp = __hldtoa(fparg.ldbl, xdigs, prec, &expt, &signflag, &dtoaend); if (dtoaresult == NULL) { errno = ENOMEM; goto error; } } else { fparg.dbl = GETARG(double); dtoaresult = cp = __hdtoa(fparg.dbl, xdigs, prec, &expt, &signflag, &dtoaend); if (dtoaresult == NULL) { errno = ENOMEM; goto error; } } if (prec < 0) prec = dtoaend - cp; if (expt == INT_MAX) ox[1] = '\0'; goto fp_common; case 'e': case 'E': expchar = ch; if (prec < 0) /* account for digit before decpt */ prec = DEFPREC + 1; else prec++; goto fp_begin; case 'f': case 'F': expchar = '\0'; goto fp_begin; case 'g': case 'G': expchar = ch - ('g' - 'e'); if (prec == 0) prec = 1; fp_begin: if (prec < 0) prec = DEFPREC; if (dtoaresult) __freedtoa(dtoaresult); if (flags & LONGDBL) { fparg.ldbl = GETARG(long double); dtoaresult = cp = __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec, &expt, &signflag, &dtoaend); if (dtoaresult == NULL) { errno = ENOMEM; goto error; } } else { fparg.dbl = GETARG(double); dtoaresult = cp = __dtoa(fparg.dbl, expchar ? 2 : 3, prec, &expt, &signflag, &dtoaend); if (dtoaresult == NULL) { errno = ENOMEM; goto error; } if (expt == 9999) expt = INT_MAX; } fp_common: if (signflag) sign = '-'; if (expt == INT_MAX) { /* inf or nan */ if (*cp == 'N') { cp = (ch >= 'a') ? "nan" : "NAN"; sign = '\0'; } else cp = (ch >= 'a') ? "inf" : "INF"; size = 3; flags &= ~ZEROPAD; break; } flags |= FPT; ndig = dtoaend - cp; if (ch == 'g' || ch == 'G') { if (expt > -4 && expt <= prec) { /* Make %[gG] smell like %[fF] */ expchar = '\0'; if (flags & ALT) prec -= expt; else prec = ndig - expt; if (prec < 0) prec = 0; } else { /* * Make %[gG] smell like %[eE], but * trim trailing zeroes if no # flag. */ if (!(flags & ALT)) prec = ndig; } } if (expchar) { expsize = exponent(expstr, expt - 1, expchar); size = expsize + prec; if (prec > 1 || flags & ALT) ++size; } else { /* space for digits before decimal point */ if (expt > 0) size = expt; else /* "0" */ size = 1; /* space for decimal pt and following digits */ if (prec || flags & ALT) size += prec + 1; lead = expt; } break; #endif /* FLOATING_POINT */ case 'n': if (flags & LLONGINT) *GETARG(long long *) = ret; else if (flags & LONGINT) *GETARG(long *) = ret; else if (flags & SHORTINT) *GETARG(short *) = ret; else if (flags & CHARINT) *GETARG(__signed char *) = ret; else if (flags & PTRINT) *GETARG(ptrdiff_t *) = ret; else if (flags & SIZEINT) *GETARG(ssize_t *) = ret; else if (flags & MAXINT) *GETARG(intmax_t *) = ret; else *GETARG(int *) = ret; continue; /* no output */ case 'O': flags |= LONGINT; /*FALLTHROUGH*/ case 'o': _umax = UARG(); base = OCT; goto nosign; case 'p': /* * ``The argument shall be a pointer to void. The * value of the pointer is converted to a sequence * of printable characters, in an implementation- * defined manner.'' * -- ANSI X3J11 */ /* NOSTRICT */ _umax = (u_long)GETARG(void *); base = HEX; xdigs = xdigs_lower; ox[1] = 'x'; goto nosign; case 's': if ((cp = GETARG(char *)) == NULL) cp = "(null)"; if (prec >= 0) { /* * can't use strlen; can only look for the * NUL in the first `prec' characters, and * strlen() will go further. */ char *p = memchr(cp, 0, prec); size = p ? (p - cp) : prec; } else { size_t len; if ((len = strlen(cp)) > INT_MAX) goto overflow; size = (int)len; } sign = '\0'; break; case 'U': flags |= LONGINT; /*FALLTHROUGH*/ case 'u': _umax = UARG(); base = DEC; goto nosign; case 'X': xdigs = xdigs_upper; goto hex; case 'x': xdigs = xdigs_lower; hex: _umax = UARG(); base = HEX; /* leading 0x/X only if non-zero */ if (flags & ALT && _umax != 0) ox[1] = ch; /* unsigned conversions */ nosign: sign = '\0'; /* * ``... diouXx conversions ... if a precision is * specified, the 0 flag will be ignored.'' * -- ANSI X3J11 */ number: if ((dprec = prec) >= 0) flags &= ~ZEROPAD; /* * ``The result of converting a zero value with an * explicit precision of zero is no characters.'' * -- ANSI X3J11 */ cp = buf + BUF; if (_umax != 0 || prec != 0) { /* * Unsigned mod is hard, and unsigned mod * by a constant is easier than that by * a variable; hence this switch. */ switch (base) { case OCT: do { *--cp = to_char(_umax & 7); _umax >>= 3; } while (_umax); /* handle octal leading 0 */ if (flags & ALT && *cp != '0') *--cp = '0'; break; case DEC: /* many numbers are 1 digit */ while (_umax >= 10) { *--cp = to_char(_umax % 10); _umax /= 10; } *--cp = to_char(_umax); break; case HEX: do { *--cp = xdigs[_umax & 15]; _umax >>= 4; } while (_umax); break; default: cp = "bug in ust_safe_vfprintf: bad base"; size = strlen(cp); goto skipsize; } } size = buf + BUF - cp; if (size > BUF) /* should never happen */ abort(); skipsize: break; default: /* "%?" prints ?, unless ? is NUL */ if (ch == '\0') goto done; /* pretend it was %c with argument ch */ cp = buf; *cp = ch; size = 1; sign = '\0'; break; } /* * All reasonable formats wind up here. At this point, `cp' * points to a string which (if not flags&LADJUST) should be * padded out to `width' places. If flags&ZEROPAD, it should * first be prefixed by any sign or other prefix; otherwise, * it should be blank padded before the prefix is emitted. * After any left-hand padding and prefixing, emit zeroes * required by a decimal %[diouxX] precision, then print the * string proper, then emit zeroes required by any leftover * floating precision; finally, if LADJUST, pad with blanks. * * Compute actual size, so we know how much to pad. * size excludes decimal prec; realsz includes it. */ realsz = dprec > size ? dprec : size; if (sign) realsz++; if (ox[1]) realsz+= 2; /* right-adjusting blank padding */ if ((flags & (LADJUST|ZEROPAD)) == 0) PAD(width - realsz, blanks); /* prefix */ if (sign) PRINT(&sign, 1); if (ox[1]) { /* ox[1] is either x, X, or \0 */ ox[0] = '0'; PRINT(ox, 2); } /* right-adjusting zero padding */ if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) PAD(width - realsz, zeroes); /* leading zeroes from decimal precision */ PAD(dprec - size, zeroes); /* the string or number proper */ #ifdef FLOATING_POINT if ((flags & FPT) == 0) { PRINT(cp, size); } else { /* glue together f_p fragments */ if (!expchar) { /* %[fF] or sufficiently short %[gG] */ if (expt <= 0) { PRINT(zeroes, 1); if (prec || flags & ALT) PRINT(decimal_point, 1); PAD(-expt, zeroes); /* already handled initial 0's */ prec += expt; } else { PRINTANDPAD(cp, dtoaend, lead, zeroes); cp += lead; if (prec || flags & ALT) PRINT(decimal_point, 1); } PRINTANDPAD(cp, dtoaend, prec, zeroes); } else { /* %[eE] or sufficiently long %[gG] */ if (prec > 1 || flags & ALT) { buf[0] = *cp++; buf[1] = *decimal_point; PRINT(buf, 2); PRINT(cp, ndig-1); PAD(prec - ndig, zeroes); } else { /* XeYYY */ PRINT(cp, 1); } PRINT(expstr, expsize); } } #else PRINT(cp, size); #endif /* left-adjusting padding (always blank) */ if (flags & LADJUST) PAD(width - realsz, blanks); /* finally, adjust ret */ if (width < realsz) width = realsz; if (width > INT_MAX - ret) goto overflow; ret += width; FLUSH(); /* copy out the I/O vectors */ } done: FLUSH(); error: if (__sferror(fp)) ret = -1; goto finish; overflow: errno = ENOMEM; ret = -1; finish: va_end(orgap); #ifdef FLOATING_POINT if (dtoaresult) __freedtoa(dtoaresult); #endif if (argtable != NULL && argtable != statargtable) { munmap(argtable, argtablesiz); argtable = NULL; } return (ret); } /* * Type ids for argument type table. */ #define T_UNUSED 0 #define T_SHORT 1 #define T_U_SHORT 2 #define TP_SHORT 3 #define T_INT 4 #define T_U_INT 5 #define TP_INT 6 #define T_LONG 7 #define T_U_LONG 8 #define TP_LONG 9 #define T_LLONG 10 #define T_U_LLONG 11 #define TP_LLONG 12 #define T_DOUBLE 13 #define T_LONG_DOUBLE 14 #define TP_CHAR 15 #define TP_VOID 16 #define T_PTRINT 17 #define TP_PTRINT 18 #define T_SIZEINT 19 #define T_SSIZEINT 20 #define TP_SSIZEINT 21 #define T_MAXINT 22 #define T_MAXUINT 23 #define TP_MAXINT 24 #define T_CHAR 25 #define T_U_CHAR 26 /* * Find all arguments when a positional parameter is encountered. Returns a * table, indexed by argument number, of pointers to each arguments. The * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries. * It will be replaced with a mmap-ed one if it overflows (malloc cannot be * used since we are attempting to make snprintf thread safe, and alloca is * problematic since we have nested functions..) */ static int __find_arguments(const char *fmt0, va_list ap, union arg **argtable, size_t *argtablesiz) { char *fmt; /* format string */ int ch; /* character from fmt */ int n, n2; /* handy integer (short term usage) */ char *cp; /* handy char pointer (short term usage) */ int flags; /* flags as above */ unsigned char *typetable; /* table of types */ unsigned char stattypetable[STATIC_ARG_TBL_SIZE]; int tablesize; /* current size of type table */ int tablemax; /* largest used index in table */ int nextarg; /* 1-based argument index */ int ret = 0; /* return value */ wchar_t wc; mbstate_t ps; /* * Add an argument type to the table, expanding if necessary. */ #define ADDTYPE(type) \ ((nextarg >= tablesize) ? \ __grow_type_table(&typetable, &tablesize) : 0, \ (nextarg > tablemax) ? tablemax = nextarg : 0, \ typetable[nextarg++] = type) #define ADDSARG() \ ((flags&MAXINT) ? ADDTYPE(T_MAXINT) : \ ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \ ((flags&SIZEINT) ? ADDTYPE(T_SSIZEINT) : \ ((flags&LLONGINT) ? ADDTYPE(T_LLONG) : \ ((flags&LONGINT) ? ADDTYPE(T_LONG) : \ ((flags&SHORTINT) ? ADDTYPE(T_SHORT) : \ ((flags&CHARINT) ? ADDTYPE(T_CHAR) : ADDTYPE(T_INT)))))))) #define ADDUARG() \ ((flags&MAXINT) ? ADDTYPE(T_MAXUINT) : \ ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \ ((flags&SIZEINT) ? ADDTYPE(T_SIZEINT) : \ ((flags&LLONGINT) ? ADDTYPE(T_U_LLONG) : \ ((flags&LONGINT) ? ADDTYPE(T_U_LONG) : \ ((flags&SHORTINT) ? ADDTYPE(T_U_SHORT) : \ ((flags&CHARINT) ? ADDTYPE(T_U_CHAR) : ADDTYPE(T_U_INT)))))))) /* * Add * arguments to the type array. */ #define ADDASTER() \ n2 = 0; \ cp = fmt; \ while (is_digit(*cp)) { \ APPEND_DIGIT(n2, *cp); \ cp++; \ } \ if (*cp == '$') { \ int hold = nextarg; \ nextarg = n2; \ ADDTYPE(T_INT); \ nextarg = hold; \ fmt = ++cp; \ } else { \ ADDTYPE(T_INT); \ } fmt = (char *)fmt0; typetable = stattypetable; tablesize = STATIC_ARG_TBL_SIZE; tablemax = 0; nextarg = 1; memset(typetable, T_UNUSED, STATIC_ARG_TBL_SIZE); memset(&ps, 0, sizeof(ps)); /* * Scan the format for conversions (`%' character). */ for (;;) { cp = fmt; while ((n = ust_safe_mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) { fmt += n; if (wc == '%') { fmt--; break; } } if (n <= 0) goto done; fmt++; /* skip over '%' */ flags = 0; rflag: ch = *fmt++; reswitch: switch (ch) { case ' ': case '#': case '\'': goto rflag; case '*': ADDASTER(); goto rflag; case '-': case '+': goto rflag; case '.': if ((ch = *fmt++) == '*') { ADDASTER(); goto rflag; } while (is_digit(ch)) { ch = *fmt++; } goto reswitch; case '0': goto rflag; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': n = 0; do { APPEND_DIGIT(n ,ch); ch = *fmt++; } while (is_digit(ch)); if (ch == '$') { nextarg = n; goto rflag; } goto reswitch; #ifdef FLOATING_POINT case 'L': flags |= LONGDBL; goto rflag; #endif case 'h': if (*fmt == 'h') { fmt++; flags |= CHARINT; } else { flags |= SHORTINT; } goto rflag; case 'l': if (*fmt == 'l') { fmt++; flags |= LLONGINT; } else { flags |= LONGINT; } goto rflag; case 'q': flags |= LLONGINT; goto rflag; case 't': flags |= PTRINT; goto rflag; case 'z': flags |= SIZEINT; goto rflag; case 'c': ADDTYPE(T_INT); break; case 'D': flags |= LONGINT; /*FALLTHROUGH*/ case 'd': case 'i': ADDSARG(); break; #ifdef FLOATING_POINT case 'a': case 'A': case 'e': case 'E': case 'f': case 'F': case 'g': case 'G': if (flags & LONGDBL) ADDTYPE(T_LONG_DOUBLE); else ADDTYPE(T_DOUBLE); break; #endif /* FLOATING_POINT */ case 'n': if (flags & LLONGINT) ADDTYPE(TP_LLONG); else if (flags & LONGINT) ADDTYPE(TP_LONG); else if (flags & SHORTINT) ADDTYPE(TP_SHORT); else if (flags & PTRINT) ADDTYPE(TP_PTRINT); else if (flags & SIZEINT) ADDTYPE(TP_SSIZEINT); else if (flags & MAXINT) ADDTYPE(TP_MAXINT); else ADDTYPE(TP_INT); continue; /* no output */ case 'O': flags |= LONGINT; /*FALLTHROUGH*/ case 'o': ADDUARG(); break; case 'p': ADDTYPE(TP_VOID); break; case 's': ADDTYPE(TP_CHAR); break; case 'U': flags |= LONGINT; /*FALLTHROUGH*/ case 'u': case 'X': case 'x': ADDUARG(); break; default: /* "%?" prints ?, unless ? is NUL */ if (ch == '\0') goto done; break; } } done: /* * Build the argument table. */ if (tablemax >= STATIC_ARG_TBL_SIZE) { *argtablesiz = sizeof(union arg) * (tablemax + 1); *argtable = mmap(NULL, *argtablesiz, PROT_WRITE|PROT_READ, MAP_ANON|MAP_PRIVATE, -1, 0); if (*argtable == MAP_FAILED) return (-1); } #if 0 /* XXX is this required? */ (*argtable)[0].intarg = 0; #endif for (n = 1; n <= tablemax; n++) { switch (typetable[n]) { case T_UNUSED: case T_CHAR: case T_U_CHAR: case T_SHORT: case T_U_SHORT: case T_INT: (*argtable)[n].intarg = va_arg(ap, int); break; case TP_SHORT: (*argtable)[n].pshortarg = va_arg(ap, short *); break; case T_U_INT: (*argtable)[n].uintarg = va_arg(ap, unsigned int); break; case TP_INT: (*argtable)[n].pintarg = va_arg(ap, int *); break; case T_LONG: (*argtable)[n].longarg = va_arg(ap, long); break; case T_U_LONG: (*argtable)[n].ulongarg = va_arg(ap, unsigned long); break; case TP_LONG: (*argtable)[n].plongarg = va_arg(ap, long *); break; case T_LLONG: (*argtable)[n].longlongarg = va_arg(ap, long long); break; case T_U_LLONG: (*argtable)[n].ulonglongarg = va_arg(ap, unsigned long long); break; case TP_LLONG: (*argtable)[n].plonglongarg = va_arg(ap, long long *); break; #ifdef FLOATING_POINT case T_DOUBLE: (*argtable)[n].doublearg = va_arg(ap, double); break; case T_LONG_DOUBLE: (*argtable)[n].longdoublearg = va_arg(ap, long double); break; #endif case TP_CHAR: (*argtable)[n].pchararg = va_arg(ap, char *); break; case TP_VOID: (*argtable)[n].pvoidarg = va_arg(ap, void *); break; case T_PTRINT: (*argtable)[n].ptrdiffarg = va_arg(ap, ptrdiff_t); break; case TP_PTRINT: (*argtable)[n].pptrdiffarg = va_arg(ap, ptrdiff_t *); break; case T_SIZEINT: (*argtable)[n].sizearg = va_arg(ap, size_t); break; case T_SSIZEINT: (*argtable)[n].ssizearg = va_arg(ap, ssize_t); break; case TP_SSIZEINT: (*argtable)[n].pssizearg = va_arg(ap, ssize_t *); break; case TP_MAXINT: (*argtable)[n].intmaxarg = va_arg(ap, intmax_t); break; } } goto finish; overflow: errno = ENOMEM; ret = -1; finish: if (typetable != NULL && typetable != stattypetable) { munmap(typetable, *argtablesiz); typetable = NULL; } return (ret); } /* * Increase the size of the type table. */ static int __grow_type_table(unsigned char **typetable, int *tablesize) { unsigned char *oldtable = *typetable; int newsize = *tablesize * 2; if (newsize < getpagesize()) newsize = getpagesize(); if (*tablesize == STATIC_ARG_TBL_SIZE) { *typetable = mmap(NULL, newsize, PROT_WRITE|PROT_READ, MAP_ANON|MAP_PRIVATE, -1, 0); if (*typetable == MAP_FAILED) return (-1); bcopy(oldtable, *typetable, *tablesize); } else { unsigned char *new = mmap(NULL, newsize, PROT_WRITE|PROT_READ, MAP_ANON|MAP_PRIVATE, -1, 0); if (new == MAP_FAILED) return (-1); memmove(new, *typetable, *tablesize); munmap(*typetable, *tablesize); *typetable = new; } memset(*typetable + *tablesize, T_UNUSED, (newsize - *tablesize)); *tablesize = newsize; return (0); } #ifdef FLOATING_POINT static int exponent(char *p0, int exp, int fmtch) { char *p, *t; char expbuf[MAXEXPDIG]; p = p0; *p++ = fmtch; if (exp < 0) { exp = -exp; *p++ = '-'; } else *p++ = '+'; t = expbuf + MAXEXPDIG; if (exp > 9) { do { *--t = to_char(exp % 10); } while ((exp /= 10) > 9); *--t = to_char(exp); for (; t < expbuf + MAXEXPDIG; *p++ = *t++) /* nothing */; } else { /* * Exponents for decimal floating point conversions * (%[eEgG]) must be at least two characters long, * whereas exponents for hexadecimal conversions can * be only one character long. */ if (fmtch == 'e' || fmtch == 'E') *p++ = '0'; *p++ = to_char(exp); } return (p - p0); } #endif /* FLOATING_POINT */ lttng-ust-2.4.0/snprintf/fvwrite.c0000644000175000017500000001335012167611342014101 00000000000000/* $OpenBSD: fvwrite.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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 #include #include #include #include "local.h" #include "fvwrite.h" #include "various.h" /* * Write some memory regions. Return zero on success, EOF on error. * * This routine is large and unsightly, but most of the ugliness due * to the three different kinds of output buffering is handled here. */ int __sfvwrite(LTTNG_UST_LFILE *fp, struct __lttng_ust_suio *uio) { size_t len; char *p; struct __lttng_ust_siov *iov; int w, s; char *nl; int nlknown, nldist; if ((len = uio->uio_resid) == 0) return (0); /* make sure we can write */ if (cantwrite(fp)) { errno = EBADF; return (EOF); } #define MIN(a, b) ((a) < (b) ? (a) : (b)) #define COPY(n) (void)memcpy((void *)fp->_p, (void *)p, (size_t)(n)) iov = uio->uio_iov; p = iov->iov_base; len = iov->iov_len; iov++; #define GETIOV(extra_work) \ while (len == 0) { \ extra_work; \ p = iov->iov_base; \ len = iov->iov_len; \ iov++; \ } if (fp->_flags & __SNBF) { /* * Unbuffered: write up to BUFSIZ bytes at a time. */ do { GETIOV(;); w = (*fp->_write)(fp->_cookie, p, MIN(len, BUFSIZ)); if (w <= 0) goto err; p += w; len -= w; } while ((uio->uio_resid -= w) != 0); } else if ((fp->_flags & __SLBF) == 0) { /* * Fully buffered: fill partially full buffer, if any, * and then flush. If there is no partial buffer, write * one _bf._size byte chunk directly (without copying). * * String output is a special case: write as many bytes * as fit, but pretend we wrote everything. This makes * snprintf() return the number of bytes needed, rather * than the number used, and avoids its write function * (so that the write function can be invalid). */ do { GETIOV(;); if ((fp->_flags & (__SALC | __SSTR)) == (__SALC | __SSTR) && fp->_w < len) { size_t blen = fp->_p - fp->_bf._base; unsigned char *_base; int _size; /* Allocate space exponentially. */ _size = fp->_bf._size; do { _size = (_size << 1) + 1; } while (_size < blen + len); _base = realloc(fp->_bf._base, _size + 1); if (_base == NULL) goto err; fp->_w += _size - fp->_bf._size; fp->_bf._base = _base; fp->_bf._size = _size; fp->_p = _base + blen; } w = fp->_w; if (fp->_flags & __SSTR) { if (len < w) w = len; COPY(w); /* copy MIN(fp->_w,len), */ fp->_w -= w; fp->_p += w; w = len; /* but pretend copied all */ } else if (fp->_p > fp->_bf._base && len > w) { /* fill and flush */ COPY(w); /* fp->_w -= w; */ /* unneeded */ fp->_p += w; if (ust_safe_fflush(fp)) goto err; } else if (len >= (w = fp->_bf._size)) { /* write directly */ w = (*fp->_write)(fp->_cookie, p, w); if (w <= 0) goto err; } else { /* fill and done */ w = len; COPY(w); fp->_w -= w; fp->_p += w; } p += w; len -= w; } while ((uio->uio_resid -= w) != 0); } else { /* * Line buffered: like fully buffered, but we * must check for newlines. Compute the distance * to the first newline (including the newline), * or `infinity' if there is none, then pretend * that the amount to write is MIN(len,nldist). */ nlknown = 0; nldist = 0; /* XXX just to keep gcc happy */ do { GETIOV(nlknown = 0); if (!nlknown) { nl = memchr((void *)p, '\n', len); nldist = nl ? nl + 1 - p : len + 1; nlknown = 1; } s = MIN(len, nldist); w = fp->_w + fp->_bf._size; if (fp->_p > fp->_bf._base && s > w) { COPY(w); /* fp->_w -= w; */ fp->_p += w; if (ust_safe_fflush(fp)) goto err; } else if (s >= (w = fp->_bf._size)) { w = (*fp->_write)(fp->_cookie, p, w); if (w <= 0) goto err; } else { w = s; COPY(w); fp->_w -= w; fp->_p += w; } if ((nldist -= w) == 0) { /* copied the newline: flush and forget */ if (ust_safe_fflush(fp)) goto err; nlknown = 0; } p += w; len -= w; } while ((uio->uio_resid -= w) != 0); } return (0); err: fp->_flags |= __SERR; return (EOF); } lttng-ust-2.4.0/snprintf/README0000644000175000017500000000014311654550516013130 00000000000000This is a signal safe version of snprintf/vsnprintf. The code is originally from the OpenBSD libc. lttng-ust-2.4.0/snprintf/Makefile.am0000644000175000017500000000075311664102663014310 00000000000000AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_srcdir)/libustcomm AM_CFLAGS = -fno-strict-aliasing noinst_LTLIBRARIES = libustsnprintf.la libustsnprintf_la_SOURCES = \ fflush.c \ fileext.h \ floatio.h \ fvwrite.c \ fvwrite.h \ local.h \ mbrtowc_sb.c \ snprintf.c \ various.h \ vfprintf.c \ wcio.h \ wsetup.c \ core.c \ patient_write.c libustsnprintf_la_LDFLAGS = -no-undefined -static libustsnprintf_la_CFLAGS = -DUST_COMPONENT="lttng_ust_snprintf" -fPIC -fno-strict-aliasing lttng-ust-2.4.0/snprintf/local.h0000644000175000017500000000614512167611342013516 00000000000000/* $OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 guenther Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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. */ /* * Information local to this implementation of stdio, * in particular, macros and private variables. */ #include #include "various.h" #include "wcio.h" #include "fileext.h" int __sflush(LTTNG_UST_LFILE *); LTTNG_UST_LFILE *__sfp(void); int __srefill(LTTNG_UST_LFILE *); int __sread(void *, char *, int); int __swrite(void *, const char *, int); fpos_t __sseek(void *, fpos_t, int); int __sclose(void *); void __sinit(void); void _cleanup(void); void __smakebuf(LTTNG_UST_LFILE *); int __swhatbuf(LTTNG_UST_LFILE *, size_t *, int *); int _fwalk(int (*)(LTTNG_UST_LFILE *)); int __swsetup(LTTNG_UST_LFILE *); int __sflags(const char *, int *); wint_t __fgetwc_unlock(LTTNG_UST_LFILE *); extern void __atexit_register_cleanup(void (*)(void)); extern int __sdidinit; /* * Return true if the given LTTNG_UST_LFILE cannot be written now. */ #define cantwrite(fp) \ ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \ __swsetup(fp)) /* * Test whether the given stdio file has an active ungetc buffer; * release such a buffer, without restoring ordinary unread data. */ #define HASUB(fp) (_UB(fp)._base != NULL) #define FREEUB(fp) { \ if (_UB(fp)._base != (fp)->_ubuf) \ free(_UB(fp)._base); \ _UB(fp)._base = NULL; \ } /* * test for an fgetln() buffer. */ #define HASLB(fp) ((fp)->_lb._base != NULL) #define FREELB(fp) { \ free((char *)(fp)->_lb._base); \ (fp)->_lb._base = NULL; \ } 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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. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * $Citrus$ */ /* * file extension */ struct __lttng_ust_sfileext { struct __lttng_ust_sbuf _ub; /* ungetc buffer */ struct wchar_io_data _wcio; /* wide char io status */ }; #define _EXT(fp) ((struct __lttng_ust_sfileext *)((fp)->_ext._base)) #define _UB(fp) _EXT(fp)->_ub #define _FILEEXT_INIT(fp) \ do { \ _UB(fp)._base = NULL; \ _UB(fp)._size = 0; \ WCIO_INIT(fp); \ } while (0) #define _FILEEXT_SETUP(f, fext) \ do { \ (f)->_ext._base = (unsigned char *)(fext); \ _FILEEXT_INIT(f); \ } while (0) lttng-ust-2.4.0/snprintf/patient_write.c0000644000175000017500000000346611664102663015302 00000000000000/* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* write() */ #include /* send() */ #include #include #include #include /* * This write is patient because it restarts if it was incomplete. */ ssize_t patient_write(int fd, const void *buf, size_t count) { const char *bufc = (const char *) buf; int result; for(;;) { result = write(fd, bufc, count); if (result == -1 && errno == EINTR) { continue; } if (result <= 0) { return result; } count -= result; bufc += result; if (count == 0) { break; } } return bufc-(const char *)buf; } ssize_t patient_send(int fd, const void *buf, size_t count, int flags) { const char *bufc = (const char *) buf; int result; for(;;) { result = send(fd, bufc, count, flags); if (result == -1 && errno == EINTR) { continue; } if (result <= 0) { return result; } count -= result; bufc += result; if (count == 0) { break; } } return bufc - (const char *) buf; } lttng-ust-2.4.0/snprintf/fflush.c0000644000175000017500000000513312167611342013702 00000000000000/* $OpenBSD: fflush.c,v 1.7 2009/10/22 01:23:16 guenther Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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 #include #include "local.h" /* Flush a single file, or (if fp is NULL) all files. */ int ust_safe_fflush(LTTNG_UST_LFILE *fp) { if (fp == NULL) return 0; // return (_fwalk(__sflush)); if ((fp->_flags & (__SWR | __SRW)) == 0) { errno = EBADF; return (EOF); } return (__sflush(fp)); } int __sflush(LTTNG_UST_LFILE *fp) { unsigned char *p; int n, t; t = fp->_flags; if ((t & __SWR) == 0) return (0); if ((p = fp->_bf._base) == NULL) return (0); n = fp->_p - p; /* write this much */ /* * Set these immediately to avoid problems with longjmp and to allow * exchange buffering (via setvbuf) in user write function. */ fp->_p = p; fp->_w = t & (__SLBF|__SNBF) ? 0 : fp->_bf._size; for (; n > 0; n -= t, p += t) { t = (*fp->_write)(fp->_cookie, (char *)p, n); if (t <= 0) { fp->_flags |= __SERR; return (EOF); } } return (0); } lttng-ust-2.4.0/snprintf/various.h0000644000175000017500000001325312167611342014112 00000000000000/*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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 UST_SNPRINTF_VARIOUS_H #define UST_SNPRINTF_VARIOUS_H #include struct __lttng_ust_sbuf { unsigned char *_base; int _size; }; /* * stdio state variables. * * The following always hold: * * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), * _lbfsize is -_bf._size, else _lbfsize is 0 * if _flags&__SRD, _w is 0 * if _flags&__SWR, _r is 0 * * This ensures that the getc and putc macros (or inline functions) never * try to write or read from a file that is in `read' or `write' mode. * (Moreover, they can, and do, automatically switch from read mode to * write mode, and back, on "r+" and "w+" files.) * * _lbfsize is used only to make the inline line-buffered output stream * code as compact as possible. * * _ub, _up, and _ur are used when ungetc() pushes back more characters * than fit in the current _bf, or when ungetc() pushes back a character * that does not match the previous one in _bf. When this happens, * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. */ typedef struct __lttng_ust_sFILE { unsigned char *_p; /* current position in (some) buffer */ int _r; /* read space left for getc() */ int _w; /* write space left for putc() */ short _flags; /* flags, below; this FILE is free if 0 */ short _file; /* fileno, if Unix descriptor, else -1 */ struct __lttng_ust_sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ int _lbfsize; /* 0 or -_bf._size, for inline putc */ /* operations */ void *_cookie; /* cookie passed to io functions */ int (*_close)(void *); int (*_read)(void *, char *, int); fpos_t (*_seek)(void *, fpos_t, int); int (*_write)(void *, const char *, int); /* extension data, to avoid further ABI breakage */ struct __lttng_ust_sbuf _ext; /* data for long sequences of ungetc() */ unsigned char *_up; /* saved _p when _p is doing ungetc data */ int _ur; /* saved _r when _r is counting ungetc data */ /* tricks to meet minimum requirements even when malloc() fails */ unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ unsigned char _nbuf[1]; /* guarantee a getc() buffer */ /* separate buffer for fgetln() when line crosses buffer boundary */ struct __lttng_ust_sbuf _lb; /* buffer for fgetln() */ /* Unix stdio files get aligned to block boundaries on fseek() */ int _blksize; /* stat.st_blksize (may be != _bf._size) */ fpos_t _offset; /* current lseek offset */ } LTTNG_UST_LFILE; #define __SLBF 0x0001 /* line buffered */ #define __SNBF 0x0002 /* unbuffered */ #define __SRD 0x0004 /* OK to read */ #define __SWR 0x0008 /* OK to write */ /* RD and WR are never simultaneously asserted */ #define __SRW 0x0010 /* open for reading & writing */ #define __SEOF 0x0020 /* found EOF */ #define __SERR 0x0040 /* found error */ #define __SMBF 0x0080 /* _buf is from malloc */ #define __SAPP 0x0100 /* fdopen()ed in append mode */ #define __SSTR 0x0200 /* this is an sprintf/snprintf string */ #define __SOPT 0x0400 /* do fseek() optimisation */ #define __SNPT 0x0800 /* do not do fseek() optimisation */ #define __SOFF 0x1000 /* set iff _offset is in fact correct */ #define __SMOD 0x2000 /* true => fgetln modified _p text */ #define __SALC 0x4000 /* allocate string space dynamically */ #define __sferror(p) (((p)->_flags & __SERR) != 0) extern int ust_safe_fflush(LTTNG_UST_LFILE *fp); extern int ust_safe_vfprintf(LTTNG_UST_LFILE *fp, const char *fmt0, va_list ap); extern size_t ust_safe_mbrtowc(wchar_t *pwc, const char *s, size_t n, mbstate_t *ps); #endif /* UST_SNPRINTF_VARIOUS_H */ lttng-ust-2.4.0/snprintf/core.c0000644000175000017500000000212112275157353013344 00000000000000/* * core.c * * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include volatile enum ust_loglevel ust_loglevel; void init_usterr(void) { char *ust_debug; if (ust_loglevel == UST_LOGLEVEL_UNKNOWN) { ust_debug = getenv("LTTNG_UST_DEBUG"); if (ust_debug) ust_loglevel = UST_LOGLEVEL_DEBUG; else ust_loglevel = UST_LOGLEVEL_NORMAL; } } lttng-ust-2.4.0/snprintf/wsetup.c0000644000175000017500000000565712167611342013755 00000000000000/* $OpenBSD: wsetup.c,v 1.7 2005/08/08 08:05:36 espie Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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 #include #include #include "local.h" /* * Various output routines call wsetup to be sure it is safe to write, * because either _flags does not include __SWR, or _buf is NULL. * _wsetup returns 0 if OK to write, nonzero otherwise. */ int __swsetup(LTTNG_UST_LFILE *fp) { /* make sure stdio is set up */ // if (!__sdidinit) // __sinit(); /* * If we are not writing, we had better be reading and writing. */ if ((fp->_flags & __SWR) == 0) { if ((fp->_flags & __SRW) == 0) return (EOF); if (fp->_flags & __SRD) { /* clobber any ungetc data */ if (HASUB(fp)) FREEUB(fp); fp->_flags &= ~(__SRD|__SEOF); fp->_r = 0; fp->_p = fp->_bf._base; } fp->_flags |= __SWR; } /* * Make a buffer if necessary, then set _w. */ if (fp->_bf._base == NULL) { // if ((fp->_flags & (__SSTR | __SALC)) == __SSTR) // return (EOF); // __smakebuf(fp); assert(0); } if (fp->_flags & __SLBF) { /* * It is line buffered, so make _lbfsize be -_bufsize * for the putc() macro. We will change _lbfsize back * to 0 whenever we turn off __SWR. */ fp->_w = 0; fp->_lbfsize = -fp->_bf._size; } else fp->_w = fp->_flags & __SNBF ? 0 : fp->_bf._size; return (0); } lttng-ust-2.4.0/snprintf/floatio.h0000644000175000017500000000512611654550516014064 00000000000000/* $OpenBSD: floatio.h,v 1.4 2008/09/07 20:36:08 martynas Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Chris Torek. * * 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. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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. */ /* * Floating point scanf/printf (input/output) definitions. */ /* 11-bit exponent (VAX G floating point) is 308 decimal digits */ #define MAXEXP 308 /* 128 bit fraction takes up 39 decimal digits; max reasonable precision */ #define MAXFRACT 39 /* * MAXEXPDIG is the maximum number of decimal digits needed to store a * floating point exponent in the largest supported format. It should * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point * conversions are supported, ceil(log10(LDBL_MAX_EXP)). But since it * is presently never greater than 5 in practice, we fudge it. */ #define MAXEXPDIG 6 #if LDBL_MAX_EXP > 999999 #error "floating point buffers too small" #endif char *__hdtoa(double, const char *, int, int *, int *, char **); char *__hldtoa(long double, const char *, int, int *, int *, char **); char *__ldtoa(long double *, int, int, int *, int *, char **); lttng-ust-2.4.0/liblttng-ust-cyg-profile/0000755000175000017500000000000012304153162015322 500000000000000lttng-ust-2.4.0/liblttng-ust-cyg-profile/lttng-ust-cyg-profile-fast.h0000644000175000017500000000414212275157353022543 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER lttng_ust_cyg_profile_fast #if !defined(_TRACEPOINT_LTTNG_UST_CYG_PROFILE_FAST_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_LTTNG_UST_CYG_PROFILE_FAST_H #ifdef __cplusplus extern "C" { #endif /* * Copyright (C) 2011-2013 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(lttng_ust_cyg_profile_fast, func_entry, TP_ARGS(void *, func_addr), TP_FIELDS( ctf_integer_hex(unsigned long, addr, (unsigned long) func_addr) ) ) TRACEPOINT_LOGLEVEL(lttng_ust_cyg_profile_fast, func_entry, TRACE_DEBUG_FUNCTION) TRACEPOINT_EVENT(lttng_ust_cyg_profile_fast, func_exit, TP_ARGS(void), TP_FIELDS() ) TRACEPOINT_LOGLEVEL(lttng_ust_cyg_profile_fast, func_exit, TRACE_DEBUG_FUNCTION) #endif /* _TRACEPOINT_LTTNG_UST_CYG_PROFILE_FAST_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./lttng-ust-cyg-profile-fast.h" /* This part must be outside ifdef protection */ #include #ifdef __cplusplus } #endif 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install-strip installcheck \ installcheck-am installdirs maintainer-clean \ maintainer-clean-generic mostlyclean mostlyclean-compile \ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ tags uninstall uninstall-am uninstall-libLTLIBRARIES # 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: lttng-ust-2.4.0/liblttng-ust-cyg-profile/run0000755000175000017500000000011212275157353016003 00000000000000#!/bin/sh LD_VERBOSE=1 LD_PRELOAD=.libs/liblttng-ust-cyg-profile.so ${*} lttng-ust-2.4.0/liblttng-ust-cyg-profile/lttng-ust-cyg-profile-fast.c0000644000175000017500000000272012275157353022536 00000000000000/* * Copyright (C) 2011-2013 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #define _LGPL_SOURCE #include #include #include #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #include "lttng-ust-cyg-profile-fast.h" void __cyg_profile_func_enter(void *this_fn, void *call_site) __attribute__((no_instrument_function)); void __cyg_profile_func_exit(void *this_fn, void *call_site) __attribute__((no_instrument_function)); void __cyg_profile_func_enter(void *this_fn, void *call_site) { tracepoint(lttng_ust_cyg_profile_fast, func_entry, this_fn); } void __cyg_profile_func_exit(void *this_fn, void *call_site) { tracepoint(lttng_ust_cyg_profile_fast, func_exit); } lttng-ust-2.4.0/liblttng-ust-cyg-profile/lttng-ust-cyg-profile.h0000644000175000017500000000450312275157353021611 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER lttng_ust_cyg_profile #if !defined(_TRACEPOINT_LTTNG_UST_CYG_PROFILE_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_LTTNG_UST_CYG_PROFILE_H #ifdef __cplusplus extern "C" { #endif /* * Copyright (C) 2011-2013 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(lttng_ust_cyg_profile, func_entry, TP_ARGS(void *, func_addr, void *, call_site), TP_FIELDS( ctf_integer_hex(unsigned long, addr, (unsigned long) func_addr) ctf_integer_hex(unsigned long, call_site, (unsigned long) call_site) ) ) TRACEPOINT_LOGLEVEL(lttng_ust_cyg_profile, func_entry, TRACE_DEBUG_FUNCTION) TRACEPOINT_EVENT(lttng_ust_cyg_profile, func_exit, TP_ARGS(void *, func_addr, void *, call_site), TP_FIELDS( ctf_integer_hex(unsigned long, addr, (unsigned long) func_addr) ctf_integer_hex(unsigned long, call_site, (unsigned long) call_site) ) ) TRACEPOINT_LOGLEVEL(lttng_ust_cyg_profile, func_exit, TRACE_DEBUG_FUNCTION) #endif /* _TRACEPOINT_LTTNG_UST_CYG_PROFILE_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./lttng-ust-cyg-profile.h" /* This part must be outside ifdef protection */ #include #ifdef __cplusplus } #endif lttng-ust-2.4.0/liblttng-ust-cyg-profile/run-fast0000755000175000017500000000011712275157353016743 00000000000000#!/bin/sh LD_VERBOSE=1 LD_PRELOAD=.libs/liblttng-ust-cyg-profile-fast.so ${*} lttng-ust-2.4.0/liblttng-ust-cyg-profile/lttng-ust-cyg-profile.c0000644000175000017500000000274012275157353021605 00000000000000/* * Copyright (C) 2011-2013 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _LGPL_SOURCE #define _GNU_SOURCE #include #include #include #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #include "lttng-ust-cyg-profile.h" void __cyg_profile_func_enter(void *this_fn, void *call_site) __attribute__((no_instrument_function)); void __cyg_profile_func_exit(void *this_fn, void *call_site) __attribute__((no_instrument_function)); void __cyg_profile_func_enter(void *this_fn, void *call_site) { tracepoint(lttng_ust_cyg_profile, func_entry, this_fn, call_site); } void __cyg_profile_func_exit(void *this_fn, void *call_site) { tracepoint(lttng_ust_cyg_profile, func_exit, this_fn, call_site); } lttng-ust-2.4.0/Makefile.in0000644000175000017500000007225612304153125012454 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in 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. @SET_MAKE@ VPATH = @srcdir@ am__make_dryrun = \ { \ am__dry=no; \ case $$MAKEFLAGS in \ *\\[\ \ ]*) \ echo 'am--echo: ; @echo "AM" OK' | $(MAKE) -f - 2>/dev/null \ | grep '^AM OK$$' >/dev/null || am__dry=yes;; \ *) \ for am__flg in $$MAKEFLAGS; do \ case $$am__flg in \ *=*|--*) ;; \ *n*) am__dry=yes; break;; \ esac; \ done;; \ esac; \ test $$am__dry = yes; \ } pkgdatadir = $(datadir)/@PACKAGE@ pkgincludedir = $(includedir)/@PACKAGE@ pkglibdir = $(libdir)/@PACKAGE@ pkglibexecdir = $(libexecdir)/@PACKAGE@ am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd install_sh_DATA = $(install_sh) -c -m 644 install_sh_PROGRAM = $(install_sh) -c install_sh_SCRIPT = $(install_sh) -c INSTALL_HEADER = $(INSTALL_DATA) transform = $(program_transform_name) NORMAL_INSTALL = : PRE_INSTALL = : POST_INSTALL = : NORMAL_UNINSTALL = : PRE_UNINSTALL = : POST_UNINSTALL = : build_triplet = @build@ host_triplet = @host@ target_triplet = @target@ @BUILD_JNI_INTERFACE_TRUE@am__append_1 = liblttng-ust-java liblttng-ust-jul subdir = . 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install-exec \ install-exec-am install-html install-html-am install-info \ install-info-am install-man install-pdf install-pdf-am \ install-pkgconfigDATA install-ps install-ps-am install-strip \ installcheck installcheck-am installdirs installdirs-am \ maintainer-clean maintainer-clean-generic mostlyclean \ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ tags tags-recursive uninstall uninstall-am \ uninstall-dist_docDATA uninstall-pkgconfigDATA # 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: lttng-ust-2.4.0/ChangeLog0000644000175000017500000006712112304153003012147 000000000000002014-02-28 (Public Sleeping Day) lttng-ust 2.4.0 * Fix: JUL test: update to API change * Fix: Cast from pointer to different integer size warning * Turn base address dump into experimental feature * Fix: JUL support multiple loglevels * Fix: Skip lttng-gen-tp example build if Python is missing * Fix: dynamically fetch the session daemon port * Fix: JUL agent connect to user and root sessiond * Fix: handle registration done command * Fix: Unsynchronized access in LTTngTCPSessiondClient * Cleanup: fix comment * Fix: Dump executable base-address with readlink * Fix: add assert for NULL dereference * Fix: tracepoint out of memory handling * Fix: dereference before null check * Cleanup: remove logically dead code * Fix: handle sysconf errors * Fix: java-jul/Makefile should not be marked as a binary 2014-02-14 lttng-ust 2.4.0-rc4 * Cleanup: remove extra space in dlerror wrapper * Fix: work-around glibc lying about dlsym()/dlerror() leafness * Cleanup: add lttng_ust_malloc_wrapper_init prototype to header * Fix: malloc libc instrumentation wrapper * Fix: add LTTngEvent class to fix delayed logger * Fix: FD leak in liblttng-ust-ctl * Fix: liblttng-ust-dl Makefile flags mismatch * Fix: liblttng-ust-fork Makefile flags mismatch * Fix: out of tree examples build * Fix: C++: incomplete extern C guard transition 2014-01-29 lttng-ust 2.4.0-rc3 * Fix: add missing JUL loglevel handling * Cleanup gen-tp: add quotes around AM_CC * Pass the CC variable to the example Makefiles * cleanup ust_baddr and ust_baddr_statedump doc * baddr: add ust_baddr and ust_baddr_statedump doc * Fix: baddr_statedump tracepoint registration * Fix: baddr out of tree build 2013-12-10 lttng-ust 2.4.0-rc2 * Fix: baddr_statedump tracepoint registration * Fix: baddr deadlocks and RCU races * Fix: lock exit mutex when creating threads * Fix: baddr deadlock with lttng-ust destructor * baddr: include missing header * baddr: get session under lock * Fix: take the ust lock around session iteration in statedump * Fix: baddr_statedump deadlock with JUL tracing * Fix: client_packet_header() uses wrong packet * Cleanup: fix typo in ring buffer backend comment * Compile liblttng-ust-baddr c files into liblttng-ust * Allow suppressing of base-address-state tracing * Integrate base-address statedump into lttng-ust * Fix: eliminate timestamp overlap between packets * Fix: lttng-gen-tp to build out of tree * Fix: compile doc/ after JUL/Java * JUL: add Hello.java in doc/examples * Fix lttng-ust(3) manpage * JUL: fix enable all event for delayed Logger * Fix: typo in JNICALL for the JUL tracepoint * Fix: move va_end to outermost label * Fix: add missing NULL check after allocation * Fix cleanup: all spaces before flags * fix: lttng-gen-tp: add missing spaces around flags 2013-11-15 lttng-ust 2.4.0-rc1 * doc/examples: error out when a subdir make fails * JUL: fix out of tree build * Java/jul: fix make dist * JUL: install documentation and jar file * Add missing copyrights to test scripts * Escape minus signs in lttng-ust-cyg-profile manpage * Fix spelling mistake in lttng-ust manpage * Fix tests/benchmark * Implement base-address-state tracing * Base-address tracing for dlopen and dlclose * Add a check against excluders * Add handler for LTTNG_UST_EXCLUSION in UST ABI * Store exclusions to enablers * Add excluders to enabler structure * Send exclusion data through ustcomm * Define exclusion structure for UST ABI * Define a new command LTTNG_UST_EXCLUSION * Fix: package of LTTngUst.h was renamed without renaming target in makefile * Fix: check for java .class in package subfolders * Fix: java library to use user define JDK at compile time * Add liblttng-ust-jul for JUL support * Fix: application SIGBUS when starting in parallel with sessiond * Fix: Minor corrections to the lttng-ust man page * Documentation cleanup: Overhaul of the lttng-gen-tp man page * Warning cleanup: add missing padding initializer * Fix: socket connect hang on heavy loads * Cleanup: fix typo * Fix: ust-comm recvmsg should handle partial receive * gcc warning fix: -Wextra * Add usage reference count for tracepoints * tracepoint.c: Move add_callsite/remove_callsite further down in file * Store the callsites into the library callsite list * Fix linking warning * Per-stream ioctl to get the current timestamp * LTTng ringbuffer ABI calls for index generation * Specialize lttng_ust_lib_ring_buffer_client_cb * Add tracing instrumentation for pthread mutex lock functions 2013-09-03 lttng-ust 2.3.0 * No change 2013-08-30 lttng-ust 2.3.0-rc2 * doc/examples/gen-tp: pass automake CPPFLAGS/CFLAGS/LDFLAGS * tools/lttng-gen-tp: honor CPPFLAGS and LDFLAGS * Fix: doc/examples cross-build * Fix: liblttng_ust.la should depend on liblttng-ust-tracepoint.la * Introduce configure --with-lttng-system-rundir * examples: tracepoint probes don't need extern C * Tracepoint probes don't need extern C * Add trace support for memalign and posix_memalign * malloc instrumentation: remove dependency on pthread * Add trace support for calloc and realloc. * Fix: allow make check to run in VPATH build * Update .gitignore * Update obsolete benchmark test * Cleanup tests (2nd commit) * Cleanup tests * Fix: doc/examples VPATH build 2013-07-17 lttng-ust 2.3.0-rc1 * Fix: Unchecked asprintf/vasprintf return values * Missing NULL pointer init in tap.c * Disable doc/examples build * Add python3 support to lttng-gen-tp * Bump ABI major to 5 * callsite: add "ip" context * Allow environment variable LTTNG_HOME to override HOME * Fix: libs order in Makefile * Fix: ring buffer: get_subbuf() checks should be performed on "consumed" parameter * Introduce ustctl_write_one_packet_to_channel * build: Fix out-of-tree build * Fix: SWITCH_FLUSH new sub-buffer checks * Fix: ring buffer: handle concurrent update in nested buffer wrap around check * Cleanup: lib_ring_buffer_switch_new_end() only calls subbuffer_set_data_size() * Fix: doc/examples: gen-tp path * Revert "Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end()" * Fix: handle writes of length 0 * Cleanup: ring buffer: remove lib_ring_buffer_switch_new_end() * Fix: lttng-events VPATH build * Allow #include in template (.tp) file * tests/hello.cxx: rename tp.cpp into tp-cpp.cpp * doc/examples: build gen-tp example by default * doc/examples: support BSD make * Tracepoint.h: replace assertion by fprintf and abort() * Remove unused assert.h from bitfield.h * Clarify probe registration documentation/errors * Fix: Check C++ designated initializers support before compiling 'hello.cxx' test * Add mising include in ust.h * lttng-gen-tp: Fix include guard name with file using non valid characters * Fix: segfault when print invalid command * Fix: Add --no-as-needed to the demo example's Makefile * zmalloc: attribute always_inline * Fix: liblttng-ust process startup hang when sessiond is stopped * Move include directive from CFLAGS to LOCAL_CPPFLAGS in examples' Makefiles * Allow tracepoint providers to be compiled with g++ * Add parameter -f to rm in Makefile clean target * Fix: missing dependency for liblttng-ust-tracepoint.so * Remove 0.x TODO * Add warning about default prefix and library paths to README * Revert "Revert "Fix (another) linker library order"" * Revert "Revert "Fix linker library order"" * snprintf: play nice with static checker * tracepoint.c: Add coverity alloc/free annotations * Fix: "fields" leak on register * Fix: memory leak for events without fields * Fix: memory leak on connection reset * Revert "Fix linker library order" * Revert "Fix (another) linker library order" * Fix: incorrect support for multi-context * Fix (another) linker library order * Fix typo in run script * Fix linker library order * Fix examples: add missing CPPFLAGS * example Makefiles: standardize on $^ for linking * Fix demo example Makefile * Move "hello-static-lib" to doc/examples and add non-automake Makefiles 2013-05-09 lttng-ust 2.2.0-rc2 * manpage: Document probe provider compatibility * Fix: add provider ABI compatibility check * Cleanup: ignore mktemp return value * Cleanup: documentation: argument vs field * Documentation: document undefined behavior for NULL pointers * Cleanup: silence cppcheck error * Fix: add internal mutex for timer * 32-bit warning fix for cyg profile fast * Fix warnings for 32-bit in lttng-ust-cyg-profile * Typo fix in README * Fix: tracepoint.h incorrect assumption about constructor order * Cleanup: comment mismatch with code * Fix: ABI breakage between 2.1 and 2.2-rc1 * Documentation: document that sequence len field is unsigned * connect: don't report EACCES * connect: don't print error on EPERM * Bump liblttng-ust-ctl lib version major number * Optimisation: implement callsite hash table in tracepoint.c * Optimisation: only update added library in tracepoint.c * Optimisation: only fix pending events once per lazy update 2013-03-28 lttng-ust 2.2.0-rc1 * Fix: tracepoint instrumentation constructor order issue * Documentation: update 2.0 to 2.x * Add demo test back as an example * Don't rely on explicit context for filtering * Implement per-context filtering * Fix: filter string comparison should check for literal * update tests/demo readme file * Add man page for lttng-ust-cyg-profile * Fix: filter string wildcard comparison * Fix: Remove test runner script * Fix: forwarding of call_site argument to field * Add demo README * Tests: Use Perl prove as the testsuite runner * Remove tests depending on consumerd * Convert hello.cxx test to a build test * Clean-up of configure.ac and tests/Makefile.am * Fix snprintf test and output result to TAP format * Replace same_line_marker test with same_line_tracepoint * Remove tests-libustinstr-malloc * Remove exit-fast test * Remove fork test * Remove daemon test * Remove demo test * Remove outdated test-nevents test * Remove outdated simple_include test * Remove outdated register_test test * Convert hello-static-lib test to a build test * Convert hello test to a build test only * Remove outdated libustctl_function_tests test * Remove outdated test hello2 * Remove outdated dlopen test * Remove outdated test basic long * Remove outdated test basic * cyg_profile: implement fast and verbose .so * Performance: add unlikely to tracepoint dynamic linking test * Fix: _LGPL_SOURCE rcu dereference fix * Implement liblttng-ust-cyg-profile function entry/exit instrumentation * Minor fix: libc wrapper internal run script * Fix: ustctl_recv_register_event pointer mixup * Fix: allow enabling same events for two channels * Add channel ID field to attr * Remove useless else clause * tracepoint: move "probe" test outside of loop * Fix uninitialized has_loglevel variable * Fix clang warnings * Cleanup: work-around clang unused result warning * Cleanup compile warning * Cleanup: remove unused variables * tracepoint: Don't add NULL probes * Remove mention of locking issues associated with dlopen usage * Implement read timer (for RT) * Only flush when there are readers active * Add mutex for channel wakeup fd update * Fix: fields should be initialized to NULL * Implement ustctl_duplicate_ust_object_data * Add channel wakeup fd to monitor close * Fix: refcount issue in lttng-ust-abi.c * Fix: only consumerd should print errors * Implement ring buffer periodic buffer switch timer * Fix: ensure all probe providers have their symbols * Reactivate error printing * Unregister tracepoint probes when not needed * Cleanup: remove now unused metadata code from UST * Fix: notification timeout logic * Fix: don't print error in comm proto connect on ENOENT * Fix: return expected error return values for sessiond * Fix: set wait/wake fd to -1 before close * Fix: Only notify socket should have timeout/nonblock * Fix: ustctl: return -EPIPE to sessiond if connection is closed * Fix: Add timeout on notification socket * Remove now unused metadata printf code * Move metadata creation into lttng-sessiond and lttng-consumed * Add write metadata API to ust-ctl.h * Move UST registry into sessiond and implement notifiers * Fix: don't flush-final for offset 0 if reader is on sub-buffer * Use tp rcu link test in provider * Remove direct dependency of probes on urcu-bp * Use urcu tls-compat.h * Lazy provider registration * Always use lttng_get_probe_list_head to get probe list * Fix static build * Move LTTng-UST buffer ownership from application to consumer * Fix package: don't distribute generated headers * Fix: don't cancel already exited threads * Scalability fix: tracepoint.c hash table size increase * Scalability fix for many events: event hash table size * Speed up probe registration for large amount of events * Add missing demo-trace shell script to dist tarball * Documentation: add uuid package name for Fedora in README * Fix: missing test for lttng_ust_comm_should_quit in lttng-ust-comm.c * Add compilation support for Tile architectures * Documentation: clarify debian package name for uuid in README * Fix: comment in ust-ctl.h * Fix I/O-related error values in ustctl * Introduce hash table for lttng_create_event_if_missing() * Fix: don't build C++ example if a C++ compiler isn't available * Remove LIBFORMAT output in configure. * Document dependency on libuuid 2012-12-20 (13th Baktun) lttng-ust 2.1.0 * Bump liblttng-ust-ctl lib version major number * Bump UST proto version minor number * Helper to debug: add object name * Tests: Fix rundir not created in ust-basic-tracing * ust test: add missing return -1 * Test: update ust tracing unit tests to 2.1 internal ABI * Tests: Fix rundir not created in ust-multi-test * Adapt internal files and examples to TRACEPOINT_INCLUDE * Adapt tests to TRACEPOINT_INCLUDE * Cleanup: tests remove hello.cxx/ust_tests_demo.h * Fix: don't do macro expansion in tracepoint file name * Fix lttng-gen-tp: Template file must end in .tp * Pack structures in comm protocol between UST and sessiond * Cleanup lttng-gen-tp: Help not showing when using -h,--help * Cleanup lttng-gen-tp: remove leading underscore before include guard * fix memleak: ustctl free shadow chan on ustctl_unmap_channel() * Update license text * Fix: check if event enabled for bytecode-less events * Fix: handle enablers without bytecode * Print probe provider mismatch error even without -Wsystem-headers * filter: Add missing padding 2012-11-22 lttng-ust 2.1.0-rc2 * filter interpreter cleanup: use uint64_t for retval * Fix: filter linking can dereference NULL pointer on alloc failure * Cleanup: remove whitespaces and EOL in tests * Filter: use only single lower bit of filter return value * Fix: filter: var len array at end of external structure * Fix: filter link fail handling * Fix: add missing seqnum field to filter * filters: perform union rather than intersection * Implement support for overlapping wildcard/events * Cleanup: add lttng_/lttng-/LTTNG_ prefixes * filter: add seqnum field to filter command * Filter iteration: iterate on list of filters * document that tracepoint names should ideally not be re-used * Remove LIBFORMAT config declaration, unused * Add libc errno translation layer to UST error code * Fix: add const qualifier for filter local void * * Fix: re-allow non-lvalue string, sequence, array parameters * Tear down handles associated with a closed sessiond socket * Distinguish UST return codes from transport return codes * Fix: Conditionally disable tests requiring shared libs support * Cleanup: don't spawn per-user thread if HOME is not set * Manpage: document supported UST contexts * Fix: procname context semantic * Fix: Fix self-assign warning on struct ustfork_clone_info init * Fix: memcpy of string is larger than source * Implement liblttng-ust-fork daemon() override test * liblttng-ust-fork: override daemon() call * ustfork: set errno to ENOSYS if symbol lookup fails * Fix: be quiet on filter linker error * Build out of src tree * Fix: filter bytecode specializer stack leak * Fix: reloc offset validation error out on filters with no reloc table * Perform calculation on bit size in 64-bit * Use uint64_t for packet header content size and packet size * Fix: manpage typo "-lllttng-ust" -> "-llttng-ust" * Fix: BSD getprogname null pointer dereference * Add support for model.emf.uri event info * Filter error message cleanup * Manpage update: document use in daemons * Fix: get_wait_shm() ust mutex deadlock (add 2 missing exit calls) * Fix: get_wait_shm() ust mutex deadlock * Fix: add events with 0 field to field list 2012-09-10 lttng-ust 2.1.0-rc1 * Fix make dist: fix liblttng-ust-java dependencies * Fix make dist: add missing filter header * Fix: backward compatibility with UST 2.0 app probes * Fix: Filter ABI changes to support FILTER_BYTECODE_MAX_LEN (65536) * Export "written" information about fields * Fix filter: pointer to string, not string, should be on stack * Fix: tracepoint float nowrite * Fix: accept 65536 bytes long bytecodes * Add hostname to env * ABI change: bump internal version to 3.0.0 * Fix: threads should be created in DETACHED state * Fix: 32-bit x86 strict-aliasing warnings * Fix UST SIGPIPE handling * Fix: Libtool fails to find dependent libraries when cross-compiling lttng-ust * Cleanup: filter: turn bytecode linking error msg into debug * Make lttng-ust robust against -finstrument-functions. * Filter: keep aliased ax and bx registers * Filter: remove interpreter dynamic typing * Filter: add missing specialized op names * Filter: specialize double-s64 binary comparators * Fix filter: fix stack leak on taken branch * Filter: Implement stack-based interpreter * Filter: double comparator produces s64 * Filter: use hash table to check merge points * Filter: split passes into separate components * Filter: cleanup macros * Filter: validate range overflow with end of insn * Filter: validate that field ref strings are non-NULL * Filter: ensure logical operator merge is always s64 * Filter: we don't care if double/s64 are literals * Filter: specialize 'and' and 'or' ops. * Implement dispatch-table based interpretor * Filter: Specialize unary operators * Define switch use as macro in interpreter * Filter interpreter: mark float test as unlikely * Filter: fix bytecode validation typo * Filter: specialize comparators * Specialize load and unary ops * Validate registers, no need to initialize to 0 * Filter: opcode for ref loads * Remove redundant validation from interpreter * filter: Add bytecode validation pass * TRACEPOINT_EVENT: add *_nowrite fields for filter * Only print filter errors if LTTNG_UST_DEBUG is set * Cleanup: remove debug define * Filter: add floating point support * Remove filter test printouts * Implement filter bytecode interpreter and linker * Filter: receive, attach and link empty filter * Filter: prepare filter stack data * Wrap dynamic len array into stackvar union * liblttng-ust-comm/lttng-ust-com.c: remove unnecessary goto in ustcomm_accept_unix_sock() * liblttng-ust/lttng-ust-comm.c: fixing typo. * Fix: remove unused texinfo dep from configure.ac * Fix C99 strict compatibility: don't use void * for function pointers * Fix c99 compatibility: tp_rcu_dereference_bp() should not use braced-groups within expressions * Revert "Fix c99 compatibility: tp_rcu_dereference_bp() should not use braced-groups within expressions" * Fix c99 compatibility: tp_rcu_dereference_bp() should not use braced-groups within expressions * Fix: perform TLS fixup of nest count outside of UST mutex * Fix: liblttng-ust-fork deadlock * Fix: handle pthread errors * Fix: local apps allowed should disable local (not global) tracing * Fix strict ISO-C compatibility for ust-tracepoint-event.h public header * Fix: support -std=c99 in tracepoint macros * Fix c99 compatibility: use __typeof__ instead of typeof in public headers * hello test: fail on old style definition * Fix: tracepoint.h should not generate old-style definitions * Fix: don't define variables in headers * test "hello": add boolean test * Fix: perform macro expansion on tracepoint signatures * UST check pointer/de-reference order * Fix list field: handle error * Implement event fields listing * Implement field listing command * Fix: Block all signals in listener thread * Add CodingStyle document to tarball * Add coding style document * endian.h: support cygwin * align.h: support cygwin page size * Add cygwin support to libringbuffer getcpu.h * Add "2x int" and "2x long" types to the Java interface * Add Integer and Long tracepoint types to the Java interface * Fix: don't SIGBUS when filesystem is full * tracepoint: include stdio.h for NULL definition * manpage update: document that probes need gcc * Fix: remove # in front on extern "C" { * Cleanup: don't use GNU old-style field designator extension * Fix: remove padding field after variable sized array * Use unsigned long type for events discarded counter * Fix: getcpu build with modern uClibc versions * Fix: lttng-ust.pc needs to specify -ldl * Fix: examples Makefiles should pass $(LIBS) at last * Build a jar for the Java side of the JNI interface * Fix: ustctl need to send the second fd upon error of 1st fd * Fix: Add missing fork test program dependency library * Fix: Make the JNI interface actually work * Merge branch 'dev' * Fix: stringify version description 2012-03-29 lttng-ust 2.0.1 * Use bsd-compatible fcntl for close-on-exec on socket * Fix multi-session wildcard support * Fix event lost count when buffer is full * Remove inappropriate \n from easy-ust sample 2012-03-20 lttng-ust 2.0.0 * First STABLE version * Add version name 2012-03-20 lttng-ust 2.0.0-rc4 * Fix out-of-bound write in ltt-events.c * Document LTTNG_UST_DEBUG_VALGRIND compilation flag * Update COPYING * Add exception handling to lttng-gen-tp io operations 2012-03-16 lttng-ust 2.0.0-rc3 * Fix: sendmsg should retry on EINTR, and use MSG_NOSIGNAL * fix: ustcomm_close_unix_sock should close, not shutdown * Fix: do not print EPIPE perror, as it is an expected error * Ensure that multiplication of clock offset is done on 64-bit * Add 2 missing licenses in deprecated tests * Remove unbuild and unused (deprecated) make_shared_lib test * License text standardization, add missing licenses * Cleanup: remove duplicate check for 0 num_subbuf and subbuf_size * Fix: power of 2 size check should apply to size_t type, not uint32_t * Fix: recvmsg should handle EINTR * Make lttng-gen-tp work on python 2.6 * Make lttng-gen-tp executable 2012-03-02 lttng-ust 2.0.0-rc2 * Manpage fixes * Fix: dmesg printout should not print metadata warnings * Fix: use transport name as channel name * Fix: Add signature check in tracepoint activation * Fix: add tracepoint signature at tracepoint definition site * Fix: keep event probe signature, for use by event probe signature check * Fix ABI: add padding to structures shared between UST and consumer * Fix ABI: add padding to tracepoint and ring buffer config public structu * Fix ABI: Adding missing padding in tracepoint event structures * Fix: Add include/lttng/ust-config.h to git ignore * Fix effect: update README about dlopen() * Fix: fixup vtid TLS * Fix: fixup ringbuffer tls at constructor by forcing read * Fix: fix deadlock with dlopen() lttng-ust * Fix: only print event errors every 1048576 hits * Fix: add missing debug printout to identify the cause of lost events * fix: liblttng-ust-ctl should check for incorrect parameters * fix: ust comm error handling segfault * Fix: Return -EINVAL instead of print warning if non power of 2 size/num_ * fix: on exit, leave thread/mmap reclaim to OS * fix: Handle sys_futex with async cancel, add missing pthread_join * fix: Only munmap the wait page when not exiting from process * Use CPPFLAGS instead of CFLAGS for -I * Fix type range comparison always false for 64-bit arch * demo: remove useless libs * tests: include missing headers * Add missing limits.h include for NAME_MAX 2012-02-20 lttng-ust 2.0.0-rc1 * Standardize version across toolchain * Fix a typo in gen-tp Makefile * Implement the .o file generation in lttng-gen-tp 2012-02-16 lttng-ust 1.9.8 * Fix comment in tracepoint.h * Add loglevel info to manpage * Remove stale binary file * Add lttng-ust(3) * Add a man page for lttng-gen-tp * Install easy-ust and gen-tp examples in doc/ * Create the lttng-gen-tp tools as an helper to generate UST .h and .c files * Add missing #define _GNU_SOURCE for sched_getcpu() * Define _GNU_SOURCE for all implementation files rather than getcpu.h * Add sched_getcpu and sysconf to AC_CHECK_FUNCS * Mark lib_ring_buffer_print_errors unused * Cleanup: remove extra space from easy_ust example * Add missing comma to tracepoint STAP_PROBEV call 2012-02-13 lttng-ust 1.9.7 * liblttng-ust-java: add missing -classpath ./ * Only specify that sdt.h provides system integration for now * Add STAP_PROBEV check ton configure.ac * Add sdt.h integration * Remove extern C around probe header * Move lttng/config.h to lttng/ust-config.h, and use LTTNG_UST_ namespace * Add a configure report at the end of the output * Add sdt.h integration option * Set default loglevel in metadata * Fix: LTTng-UST java jni wrapper does not build with OpenJDK 2012-02-09 lttng-ust 1.9.6 * Fix tracepoint.h multiple .o within module/core exec linkage bug * tracepoint: name -> _name to fix possible namespace clash * Add debug printout to tracepoint.c * Rename liblttng-ust-libc to liblttng-ust-libc-wrapper * Update hardcoded loglevel * Add "easy_ust" example * Update gitignore * Zero-initialize struct msghdr * Add environment information * Fix event-specific enabling * Update static lib linking * liblttng-ust-libc: fix linking * liblttng-ust-libc: fix lib dependency * Install README and ChangeLog into system doc * Add hello-static-lib test * Fix static provider linking: introduce TRACEPOINT_PROBE_DYNAMIC_LINKAGE * Fix 32-bit type: allocated len is used * Fix 32-bit type mismatch 2012-02-02 lttng-ust 1.9.5 * UST comm ABI: Add padding, push version to 2.0 * Update loglevel names * Implement loglevels as event and wildcard attributes * Update loglevel ABI: only loglevel value/enum is known by UST * Pre-assign fixed loglevels * Remove old (now unused) loglevel control code entirely * Update loglevel selection ABI * Use boot_id as monotonic clock uuid * clock: add clock description to metadata * Properly fix the timekeeping overflow detection * Revert "Fix timestamps for slow-paced event rates" * Revert "Force 64-bit timestamps" * Declare struct lttng_ust_calibrate * Force 64-bit timestamps * demo program: ensure we don't link demo on useless libs * ust comm: Receive second FD even if 1st receive failed * ust consumer: close shm fd after mapping it * Add a comment about which wait fd is closed early by UST. * Remove leftover structure in ust-abi.h * Close stream and channel file descriptors as soon as passed to sessiond * Fix AC_LANG_SOURCE usage: only takes one parameter * Fix timestamps for slow-paced event rates * configure.ac: Use AC_LANG_SOURCE for if else macros * Add execution instructions to the demo test program * Force the building of shared noinst libraries in the demo test program. * Only print the futex perror in debug mode 2011-12-23 lttng-ust 1.9.4 * Split liblttng-ust into liblttng-ust and liblttng-ust-tracepoint libs * Comment the union field (only used in call_rcu scheme) 2011-12-21 lttng-ust 1.9.3 * Fix clock source overflow on 32-bit archs * Remove unused trace_clock_frequency * check for negative wait() return value * Add DBG message when registering a probe * Only show futex warning "perror" in debug mode 2011-12-14 lttng-ust 1.9.2 * Add missing ust_libc.h to Makefile.am * Use DBG instead of WARN for futex_wake workaround message * Make dlopen more robust by using the .0 target for the library 2011-12-13 lttng-ust 1.9.1 * First LTTng-UST 2.0 prerelease. lttng-ust-2.4.0/liblttng-ust-libc-wrapper/0000755000175000017500000000000012304153162015471 500000000000000lttng-ust-2.4.0/liblttng-ust-libc-wrapper/lttng-ust-malloc.c0000644000175000017500000002100412304151532020757 00000000000000/* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #include "ust_libc.h" #define STATIC_CALLOC_LEN 4096 static char static_calloc_buf[STATIC_CALLOC_LEN]; static unsigned long static_calloc_buf_offset; struct alloc_functions { void *(*calloc)(size_t nmemb, size_t size); void *(*malloc)(size_t size); void (*free)(void *ptr); void *(*realloc)(void *ptr, size_t size); void *(*memalign)(size_t alignment, size_t size); int (*posix_memalign)(void **memptr, size_t alignment, size_t size); }; static struct alloc_functions cur_alloc; /* * Static allocator to use when initially executing dlsym(). It keeps a * size_t value of each object size prior to the object. */ static void *static_calloc_aligned(size_t nmemb, size_t size, size_t alignment) { size_t prev_offset, new_offset, res_offset, aligned_offset; if (nmemb * size == 0) { return NULL; } /* * Protect static_calloc_buf_offset from concurrent updates * using a cmpxchg loop rather than a mutex to remove a * dependency on pthread. This will minimize the risk of bad * interaction between mutex and malloc instrumentation. */ res_offset = CMM_LOAD_SHARED(static_calloc_buf_offset); do { prev_offset = res_offset; aligned_offset = ALIGN(prev_offset + sizeof(size_t), alignment); new_offset = aligned_offset + nmemb * size; if (new_offset > sizeof(static_calloc_buf)) { abort(); } } while ((res_offset = uatomic_cmpxchg(&static_calloc_buf_offset, prev_offset, new_offset)) != prev_offset); *(size_t *) &static_calloc_buf[aligned_offset - sizeof(size_t)] = size; return &static_calloc_buf[aligned_offset]; } static void *static_calloc(size_t nmemb, size_t size) { void *retval; retval = static_calloc_aligned(nmemb, size, 1); tracepoint(ust_libc, calloc, nmemb, size, retval); return retval; } static void *static_malloc(size_t size) { void *retval; retval = static_calloc_aligned(1, size, 1); tracepoint(ust_libc, malloc, size, retval); return retval; } static void static_free(void *ptr) { /* no-op. */ tracepoint(ust_libc, free, ptr); } static void *static_realloc(void *ptr, size_t size) { size_t *old_size = NULL; void *retval; if (size == 0) { retval = NULL; goto end; } if (ptr) { old_size = (size_t *) ptr - 1; if (size <= *old_size) { /* We can re-use the old entry. */ *old_size = size; retval = ptr; goto end; } } /* We need to expand. Don't free previous memory location. */ retval = static_calloc_aligned(1, size, 1); assert(retval); if (ptr) memcpy(retval, ptr, *old_size); end: tracepoint(ust_libc, realloc, ptr, size, retval); return retval; } static void *static_memalign(size_t alignment, size_t size) { void *retval; retval = static_calloc_aligned(1, size, alignment); tracepoint(ust_libc, memalign, alignment, size, retval); return retval; } static int static_posix_memalign(void **memptr, size_t alignment, size_t size) { int retval = 0; void *ptr; /* Check for power of 2, larger than void *. */ if (alignment & (alignment - 1) || alignment < sizeof(void *) || alignment == 0) { retval = EINVAL; goto end; } ptr = static_calloc_aligned(1, size, alignment); *memptr = ptr; if (size && !ptr) retval = ENOMEM; end: tracepoint(ust_libc, posix_memalign, *memptr, alignment, size, retval); return 0; } static void setup_static_allocator(void) { assert(cur_alloc.calloc == NULL); cur_alloc.calloc = static_calloc; assert(cur_alloc.malloc == NULL); cur_alloc.malloc = static_malloc; assert(cur_alloc.free == NULL); cur_alloc.free = static_free; assert(cur_alloc.realloc == NULL); cur_alloc.realloc = static_realloc; assert(cur_alloc.memalign == NULL); cur_alloc.memalign = static_memalign; assert(cur_alloc.posix_memalign == NULL); cur_alloc.posix_memalign = static_posix_memalign; } static void lookup_all_symbols(void) { struct alloc_functions af; /* * Temporarily redirect allocation functions to * static_calloc_aligned, and free function to static_free * (no-op), until the dlsym lookup has completed. */ setup_static_allocator(); /* Perform the actual lookups */ af.calloc = dlsym(RTLD_NEXT, "calloc"); af.malloc = dlsym(RTLD_NEXT, "malloc"); af.free = dlsym(RTLD_NEXT, "free"); af.realloc = dlsym(RTLD_NEXT, "realloc"); af.memalign = dlsym(RTLD_NEXT, "memalign"); af.posix_memalign = dlsym(RTLD_NEXT, "posix_memalign"); /* Populate the new allocator functions */ memcpy(&cur_alloc, &af, sizeof(cur_alloc)); } void *malloc(size_t size) { void *retval; if (cur_alloc.malloc == NULL) { lookup_all_symbols(); if (cur_alloc.malloc == NULL) { fprintf(stderr, "mallocwrap: unable to find malloc\n"); abort(); } } retval = cur_alloc.malloc(size); tracepoint(ust_libc, malloc, size, retval); return retval; } void free(void *ptr) { tracepoint(ust_libc, free, ptr); /* * Check whether the memory was allocated with * static_calloc_align, in which case there is nothing to free. */ if (caa_unlikely((char *)ptr >= static_calloc_buf && (char *)ptr < static_calloc_buf + STATIC_CALLOC_LEN)) { return; } if (cur_alloc.free == NULL) { lookup_all_symbols(); if (cur_alloc.free == NULL) { fprintf(stderr, "mallocwrap: unable to find free\n"); abort(); } } cur_alloc.free(ptr); } void *calloc(size_t nmemb, size_t size) { void *retval; if (cur_alloc.calloc == NULL) { lookup_all_symbols(); if (cur_alloc.calloc == NULL) { fprintf(stderr, "callocwrap: unable to find calloc\n"); abort(); } } retval = cur_alloc.calloc(nmemb, size); tracepoint(ust_libc, calloc, nmemb, size, retval); return retval; } void *realloc(void *ptr, size_t size) { void *retval; /* Check whether the memory was allocated with * static_calloc_align, in which case there is nothing * to free, and we need to copy the old data. */ if (caa_unlikely((char *)ptr >= static_calloc_buf && (char *)ptr < static_calloc_buf + STATIC_CALLOC_LEN)) { size_t *old_size; old_size = (size_t *) ptr - 1; if (cur_alloc.calloc == NULL) { lookup_all_symbols(); if (cur_alloc.calloc == NULL) { fprintf(stderr, "reallocwrap: unable to find calloc\n"); abort(); } } retval = cur_alloc.calloc(1, size); if (retval) { memcpy(retval, ptr, *old_size); } goto end; } if (cur_alloc.realloc == NULL) { lookup_all_symbols(); if (cur_alloc.realloc == NULL) { fprintf(stderr, "reallocwrap: unable to find realloc\n"); abort(); } } retval = cur_alloc.realloc(ptr, size); end: tracepoint(ust_libc, realloc, ptr, size, retval); return retval; } void *memalign(size_t alignment, size_t size) { void *retval; if (cur_alloc.memalign == NULL) { lookup_all_symbols(); if (cur_alloc.memalign == NULL) { fprintf(stderr, "memalignwrap: unable to find memalign\n"); abort(); } } retval = cur_alloc.memalign(alignment, size); tracepoint(ust_libc, memalign, alignment, size, retval); return retval; } int posix_memalign(void **memptr, size_t alignment, size_t size) { int retval; if (cur_alloc.posix_memalign == NULL) { lookup_all_symbols(); if (cur_alloc.posix_memalign == NULL) { fprintf(stderr, "posix_memalignwrap: unable to find posix_memalign\n"); abort(); } } retval = cur_alloc.posix_memalign(memptr, alignment, size); tracepoint(ust_libc, posix_memalign, *memptr, alignment, size, retval); return retval; } __attribute__((constructor)) void lttng_ust_malloc_wrapper_init(void) { /* Initialization already done */ if (cur_alloc.calloc) { return; } /* * Ensure the allocator is in place before the process becomes * multithreaded. */ lookup_all_symbols(); } lttng-ust-2.4.0/liblttng-ust-libc-wrapper/README0000644000175000017500000000065311723773223016307 00000000000000liblttng-ust-libc is used for instrumenting some calls to libc in a program, without need for recompiling it. 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installdirs maintainer-clean \ maintainer-clean-generic mostlyclean mostlyclean-compile \ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ tags uninstall uninstall-am uninstall-libLTLIBRARIES # 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: lttng-ust-2.4.0/liblttng-ust-libc-wrapper/run0000755000175000017500000000011312275157353016153 00000000000000#!/bin/sh LD_VERBOSE=1 LD_PRELOAD=.libs/liblttng-ust-libc-wrapper.so ${*} lttng-ust-2.4.0/liblttng-ust-libc-wrapper/ust_libc.h0000644000175000017500000000542712304144741017401 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_libc #if !defined(_TRACEPOINT_UST_LIBC_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_LIBC_H #ifdef __cplusplus extern "C" { #endif /* * Copyright (C) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_libc, malloc, TP_ARGS(size_t, size, void *, ptr), TP_FIELDS( ctf_integer(size_t, size, size) ctf_integer_hex(void *, ptr, ptr) ) ) TRACEPOINT_EVENT(ust_libc, free, TP_ARGS(void *, ptr), TP_FIELDS( ctf_integer_hex(void *, ptr, ptr) ) ) TRACEPOINT_EVENT(ust_libc, calloc, TP_ARGS(size_t, nmemb, size_t, size, void *, ptr), TP_FIELDS( ctf_integer(size_t, nmemb, nmemb) ctf_integer(size_t, size, size) ctf_integer_hex(void *, ptr, ptr) ) ) TRACEPOINT_EVENT(ust_libc, realloc, TP_ARGS(void *, in_ptr, size_t, size, void *, ptr), TP_FIELDS( ctf_integer_hex(void *, in_ptr, in_ptr) ctf_integer(size_t, size, size) ctf_integer_hex(void *, ptr, ptr) ) ) TRACEPOINT_EVENT(ust_libc, memalign, TP_ARGS(size_t, alignment, size_t, size, void *, ptr), TP_FIELDS( ctf_integer(size_t, alignment, alignment) ctf_integer(size_t, size, size) ctf_integer_hex(void *, ptr, ptr) ) ) TRACEPOINT_EVENT(ust_libc, posix_memalign, TP_ARGS(void *, out_ptr, size_t, alignment, size_t, size, int, result), TP_FIELDS( ctf_integer_hex(void *, out_ptr, out_ptr) ctf_integer(size_t, alignment, alignment) ctf_integer(size_t, size, size) ctf_integer(int, result, result) ) ) #endif /* _TRACEPOINT_UST_LIBC_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_libc.h" /* This part must be outside ifdef protection */ #include #ifdef __cplusplus } #endif lttng-ust-2.4.0/liblttng-ust-libc-wrapper/ust_pthread.h0000644000175000017500000000444012304151532020105 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_pthread #if !defined(_TRACEPOINT_UST_PTHREAD_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_PTHREAD_H #ifdef __cplusplus extern "C" { #endif /* * Copyright (C) 2013 Mentor Graphics * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_pthread, pthread_mutex_lock_req, TP_ARGS(pthread_mutex_t *, mutex), TP_FIELDS( ctf_integer_hex(void *, mutex, mutex) ) ) TRACEPOINT_EVENT(ust_pthread, pthread_mutex_lock_acq, TP_ARGS(pthread_mutex_t *, mutex, int, status), TP_FIELDS( ctf_integer_hex(void *, mutex, mutex) ctf_integer(int, status, status) ) ) TRACEPOINT_EVENT(ust_pthread, pthread_mutex_trylock, TP_ARGS(pthread_mutex_t *, mutex, int, status), TP_FIELDS( ctf_integer_hex(void *, mutex, mutex) ctf_integer(int, status, status) ) ) TRACEPOINT_EVENT(ust_pthread, pthread_mutex_unlock, TP_ARGS(pthread_mutex_t *, mutex, int, status), TP_FIELDS( ctf_integer_hex(void *, mutex, mutex) ctf_integer(int, status, status) ) ) #endif /* _TRACEPOINT_UST_PTHREAD_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_pthread.h" /* This part must be outside ifdef protection */ #include #ifdef __cplusplus } #endif lttng-ust-2.4.0/liblttng-ust-libc-wrapper/lttng-ust-pthread.c0000644000175000017500000000527712304151532021155 00000000000000/* * Copyright (C) 2013 Mentor Graphics * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include #include #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #include "ust_pthread.h" static __thread int thread_in_trace; int pthread_mutex_lock(pthread_mutex_t *mutex) { static int (*mutex_lock)(pthread_mutex_t *); int retval; if (!mutex_lock) { mutex_lock = dlsym(RTLD_NEXT, "pthread_mutex_lock"); if (!mutex_lock) { if (thread_in_trace) { abort(); } fprintf(stderr, "unable to initialize pthread wrapper library.\n"); return EINVAL; } } if (thread_in_trace) { return mutex_lock(mutex); } thread_in_trace = 1; tracepoint(ust_pthread, pthread_mutex_lock_req, mutex); retval = mutex_lock(mutex); tracepoint(ust_pthread, pthread_mutex_lock_acq, mutex, retval); thread_in_trace = 0; return retval; } int pthread_mutex_trylock(pthread_mutex_t *mutex) { static int (*mutex_trylock)(pthread_mutex_t *); int retval; if (!mutex_trylock) { mutex_trylock = dlsym(RTLD_NEXT, "pthread_mutex_trylock"); if (!mutex_trylock) { if (thread_in_trace) { abort(); } fprintf(stderr, "unable to initialize pthread wrapper library.\n"); return EINVAL; } } if (thread_in_trace) { return mutex_trylock(mutex); } thread_in_trace = 1; retval = mutex_trylock(mutex); tracepoint(ust_pthread, pthread_mutex_trylock, mutex, retval); thread_in_trace = 0; return retval; } int pthread_mutex_unlock(pthread_mutex_t *mutex) { static int (*mutex_unlock)(pthread_mutex_t *); int retval; if (!mutex_unlock) { mutex_unlock = dlsym(RTLD_NEXT, "pthread_mutex_unlock"); if (!mutex_unlock) { if (thread_in_trace) { abort(); } fprintf(stderr, "unable to initialize pthread wrapper library.\n"); return EINVAL; } } if (thread_in_trace) { return mutex_unlock(mutex); } thread_in_trace = 1; retval = mutex_unlock(mutex); tracepoint(ust_pthread, pthread_mutex_unlock, mutex, retval); thread_in_trace = 0; return retval; } lttng-ust-2.4.0/aclocal.m40000644000175000017500000013102012304153124012227 00000000000000# generated automatically by aclocal 1.11.6 -*- Autoconf -*- # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, # 2005, 2006, 2007, 2008, 2009, 2010, 2011 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. m4_ifndef([AC_AUTOCONF_VERSION], [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, [m4_warning([this file was generated for autoconf 2.69. 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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"; 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 ;; gnu*) lt_cv_deplibs_check_method=pass_all ;; 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) 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*|ppc*-*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*) LD="${LD-ld} -m elf_i386" ;; ppc64-*linux*|powerpc64-*linux*) LD="${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="${LD-ld} -m elf_x86_64" ;; ppc*-*linux*|powerpc*-*linux*) LD="${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... 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" >&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... 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" >&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 ${wl}suppress' ;; darwin*) # darwin 5.x on # if running on 10.5 or later, the deployment target defaults # to the OS version, if on x86, and 10.4, the deployment # target defaults to 10.4. 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Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$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.$ac_ext # OK, works on sane cases. 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*) archive_cmds='$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. 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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 - | $GREP yes > /dev/null; then : else can_build_shared=no fi ;; esac # AIX (on Power*) has no versioning support, so currently we can not hardcode correct # soname into executable. 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do libname=`func_echo_all "$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 $libdir' shlibpath_var=LD_LIBRARY_PATH sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" # the default ld.so.conf also contains /usr/contrib/lib and # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow # libtool to hard-code these into programs ;; 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then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" fi sys_lib_dlsearch_path_spec=$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${libsuff}" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='${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 ${lt_cv_shlibpath_overrides_runpath+:} false; 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sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) version_type=freebsd-elf need_lib_prefix=no need_version=no library_names_spec='${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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" >&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. 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you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _LGPL_SOURCE #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include "usterr.h" #include #include #define TRACEPOINT_DEFINE #include "ust_baddr.h" static void *(*__lttng_ust_plibc_dlopen)(const char *filename, int flag); static int (*__lttng_ust_plibc_dlclose)(void *handle); static void *_lttng_ust_dl_libc_dlopen(const char *filename, int flag) { if (!__lttng_ust_plibc_dlopen) { __lttng_ust_plibc_dlopen = dlsym(RTLD_NEXT, "dlopen"); if (__lttng_ust_plibc_dlopen == NULL) { fprintf(stderr, "%s\n", dlerror()); return NULL; } } return __lttng_ust_plibc_dlopen(filename, flag); } static int _lttng_ust_dl_libc_dlclose(void *handle) { if (!__lttng_ust_plibc_dlclose) { __lttng_ust_plibc_dlclose = dlsym(RTLD_NEXT, "dlclose"); if (__lttng_ust_plibc_dlclose == NULL) { fprintf(stderr, "%s\n", dlerror()); return -1; } } return __lttng_ust_plibc_dlclose(handle); } static void lttng_ust_baddr_push(void *so_base, const char *so_name) { char resolved_path[PATH_MAX]; struct stat sostat; if (!realpath(so_name, resolved_path)) { ERR("could not resolve path '%s'", so_name); return; } if (stat(resolved_path, &sostat)) { ERR("could not access file status for %s", resolved_path); return; } tracepoint(ust_baddr, push, so_base, resolved_path, sostat.st_size, sostat.st_mtime); return; } void *dlopen(const char *filename, int flag) { void *handle = _lttng_ust_dl_libc_dlopen(filename, flag); if (__tracepoint_ptrs_registered && handle) { struct link_map *p = NULL; if (dlinfo(handle, RTLD_DI_LINKMAP, &p) != -1 && p != NULL && p->l_addr != 0) lttng_ust_baddr_push((void *) p->l_addr, p->l_name); } return handle; } int dlclose(void *handle) { if (__tracepoint_ptrs_registered && handle) { struct link_map *p = NULL; if (dlinfo(handle, RTLD_DI_LINKMAP, &p) != -1 && p != NULL && p->l_addr != 0) tracepoint(ust_baddr, pop, (void *) p->l_addr); } return _lttng_ust_dl_libc_dlclose(handle); } lttng-ust-2.4.0/liblttng-ust-dl/ust_baddr.h0000644000175000017500000000403612304151532015543 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_baddr #if !defined(_TRACEPOINT_UST_BADDR_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_BADDR_H #ifdef __cplusplus extern "C" { #endif /* * Copyright (C) 2013 Paul Woegerer * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #define LTTNG_UST_BADDR_PROVIDER #include TRACEPOINT_EVENT(ust_baddr, push, TP_ARGS(void *, baddr, const char*, sopath, int64_t, size, int64_t, mtime), TP_FIELDS( ctf_integer_hex(void *, baddr, baddr) ctf_string(sopath, sopath) ctf_integer(int64_t, size, size) ctf_integer(int64_t, mtime, mtime) ) ) TRACEPOINT_EVENT(ust_baddr, pop, TP_ARGS(void *, baddr), TP_FIELDS( ctf_integer_hex(void *, baddr, baddr) ) ) #endif /* _TRACEPOINT_UST_BADDR_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_baddr.h" /* This part must be outside ifdef protection */ #include #ifdef __cplusplus } #endif lttng-ust-2.4.0/lttng-ust.pc.in0000644000175000017500000000054212123372601013267 00000000000000prefix=@prefix@ exec_prefix=@exec_prefix@ libdir=@libdir@ includedir=@includedir@ Name: LTTng Userspace Tracer Description: The LTTng Userspace Tracer (UST) is a library accompanied by a set of tools to trace userspace code. Version: @PACKAGE_VERSION@ Requires: Requires.private: liburcu-bp Libs: -L${libdir} -llttng-ust -ldl Cflags: -I${includedir} lttng-ust-2.4.0/libringbuffer/0000755000175000017500000000000012304153162013274 500000000000000lttng-ust-2.4.0/libringbuffer/nohz.h0000644000175000017500000000240412123372601014343 00000000000000#ifndef _LTTNG_RING_BUFFER_NOHZ_H #define _LTTNG_RING_BUFFER_NOHZ_H /* * libringbuffer/nohz.h * * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifdef CONFIG_LIB_RING_BUFFER void lib_ring_buffer_tick_nohz_flush(void); void lib_ring_buffer_tick_nohz_stop(void); void lib_ring_buffer_tick_nohz_restart(void); #else static inline void lib_ring_buffer_tick_nohz_flush(void) { } static inline void lib_ring_buffer_tick_nohz_stop(void) { } static inline void lib_ring_buffer_tick_nohz_restart(void) { } #endif #endif /* _LTTNG_RING_BUFFER_NOHZ_H */ lttng-ust-2.4.0/libringbuffer/shm_types.h0000644000175000017500000000272112275157353015417 00000000000000#ifndef _LIBRINGBUFFER_SHM_TYPES_H #define _LIBRINGBUFFER_SHM_TYPES_H /* * libringbuffer/shm_types.h * * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include "shm_internal.h" struct channel; enum shm_object_type { SHM_OBJECT_SHM, SHM_OBJECT_MEM, }; struct shm_object { enum shm_object_type type; size_t index; /* within the object table */ int shm_fd; /* shm fd */ int wait_fd[2]; /* fd for wait/wakeup */ char *memory_map; size_t memory_map_size; uint64_t allocated_len; }; struct shm_object_table { size_t size; size_t allocated_len; struct shm_object objects[]; }; struct lttng_ust_shm_handle { struct shm_object_table *table; DECLARE_SHMP(struct channel, chan); }; #endif /* _LIBRINGBUFFER_SHM_TYPES_H */ lttng-ust-2.4.0/libringbuffer/shm.c0000644000175000017500000002532712275157353014175 00000000000000/* * libringbuffer/shm.c * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "shm.h" #include #include #include #include /* For mode constants */ #include /* For O_* constants */ #include #include #include #include #include #include #include #include /* * Ensure we have the required amount of space available by writing 0 * into the entire buffer. Not doing so can trigger SIGBUS when going * beyond the available shm space. */ static int zero_file(int fd, size_t len) { ssize_t retlen; size_t written = 0; char *zeropage; long pagelen; int ret; pagelen = sysconf(_SC_PAGESIZE); if (pagelen < 0) return (int) pagelen; zeropage = calloc(pagelen, 1); if (!zeropage) return -ENOMEM; while (len > written) { do { retlen = write(fd, zeropage, min_t(size_t, pagelen, len - written)); } while (retlen == -1UL && errno == EINTR); if (retlen < 0) { ret = (int) retlen; goto error; } written += retlen; } ret = 0; error: free(zeropage); return ret; } struct shm_object_table *shm_object_table_create(size_t max_nb_obj) { struct shm_object_table *table; table = zmalloc(sizeof(struct shm_object_table) + max_nb_obj * sizeof(table->objects[0])); if (!table) return NULL; table->size = max_nb_obj; return table; } static struct shm_object *_shm_object_table_alloc_shm(struct shm_object_table *table, size_t memory_map_size) { int shmfd, waitfd[2], ret, i, sigblocked = 0; struct shm_object *obj; char *memory_map; char tmp_name[NAME_MAX] = "/ust-shm-tmp-XXXXXX"; sigset_t all_sigs, orig_sigs; if (table->allocated_len >= table->size) return NULL; obj = &table->objects[table->allocated_len]; /* wait_fd: create pipe */ ret = pipe(waitfd); if (ret < 0) { PERROR("pipe"); goto error_pipe; } for (i = 0; i < 2; i++) { ret = fcntl(waitfd[i], F_SETFD, FD_CLOEXEC); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } } /* The write end of the pipe needs to be non-blocking */ ret = fcntl(waitfd[1], F_SETFL, O_NONBLOCK); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } memcpy(obj->wait_fd, waitfd, sizeof(waitfd)); /* shm_fd: create shm */ /* * Theoretically, we could leak a shm if the application crashes * between open and unlink. Disable signals on this thread for * increased safety against this scenario. */ sigfillset(&all_sigs); ret = pthread_sigmask(SIG_BLOCK, &all_sigs, &orig_sigs); if (ret == -1) { PERROR("pthread_sigmask"); goto error_pthread_sigmask; } sigblocked = 1; /* * Allocate shm, and immediately unlink its shm oject, keeping * only the file descriptor as a reference to the object. If it * already exists (caused by short race window during which the * global object exists in a concurrent shm_open), simply retry. * We specifically do _not_ use the / at the beginning of the * pathname so that some OS implementations can keep it local to * the process (POSIX leaves this implementation-defined). */ do { /* * Using mktemp filename with O_CREAT | O_EXCL open * flags. */ (void) mktemp(tmp_name); if (tmp_name[0] == '\0') { PERROR("mktemp"); goto error_shm_open; } shmfd = shm_open(tmp_name, O_CREAT | O_EXCL | O_RDWR, 0700); } while (shmfd < 0 && (errno == EEXIST || errno == EACCES)); if (shmfd < 0) { PERROR("shm_open"); goto error_shm_open; } ret = shm_unlink(tmp_name); if (ret < 0 && errno != ENOENT) { PERROR("shm_unlink"); goto error_shm_release; } sigblocked = 0; ret = pthread_sigmask(SIG_SETMASK, &orig_sigs, NULL); if (ret == -1) { PERROR("pthread_sigmask"); goto error_sigmask_release; } ret = zero_file(shmfd, memory_map_size); if (ret) { PERROR("zero_file"); goto error_zero_file; } ret = ftruncate(shmfd, memory_map_size); if (ret) { PERROR("ftruncate"); goto error_ftruncate; } obj->shm_fd = shmfd; /* memory_map: mmap */ memory_map = mmap(NULL, memory_map_size, PROT_READ | PROT_WRITE, MAP_SHARED, shmfd, 0); if (memory_map == MAP_FAILED) { PERROR("mmap"); goto error_mmap; } obj->type = SHM_OBJECT_SHM; obj->memory_map = memory_map; obj->memory_map_size = memory_map_size; obj->allocated_len = 0; obj->index = table->allocated_len++; return obj; error_mmap: error_ftruncate: error_shm_release: error_zero_file: error_sigmask_release: ret = close(shmfd); if (ret) { PERROR("close"); assert(0); } error_shm_open: if (sigblocked) { ret = pthread_sigmask(SIG_SETMASK, &orig_sigs, NULL); if (ret == -1) { PERROR("pthread_sigmask"); } } error_pthread_sigmask: error_fcntl: for (i = 0; i < 2; i++) { ret = close(waitfd[i]); if (ret) { PERROR("close"); assert(0); } } error_pipe: return NULL; } static struct shm_object *_shm_object_table_alloc_mem(struct shm_object_table *table, size_t memory_map_size) { struct shm_object *obj; void *memory_map; int waitfd[2], i, ret; if (table->allocated_len >= table->size) return NULL; obj = &table->objects[table->allocated_len]; memory_map = zmalloc(memory_map_size); if (!memory_map) goto alloc_error; /* wait_fd: create pipe */ ret = pipe(waitfd); if (ret < 0) { PERROR("pipe"); goto error_pipe; } for (i = 0; i < 2; i++) { ret = fcntl(waitfd[i], F_SETFD, FD_CLOEXEC); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } } /* The write end of the pipe needs to be non-blocking */ ret = fcntl(waitfd[1], F_SETFL, O_NONBLOCK); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } memcpy(obj->wait_fd, waitfd, sizeof(waitfd)); /* no shm_fd */ obj->shm_fd = -1; obj->type = SHM_OBJECT_MEM; obj->memory_map = memory_map; obj->memory_map_size = memory_map_size; obj->allocated_len = 0; obj->index = table->allocated_len++; return obj; error_fcntl: for (i = 0; i < 2; i++) { ret = close(waitfd[i]); if (ret) { PERROR("close"); assert(0); } } error_pipe: free(memory_map); alloc_error: return NULL; } struct shm_object *shm_object_table_alloc(struct shm_object_table *table, size_t memory_map_size, enum shm_object_type type) { switch (type) { case SHM_OBJECT_SHM: return _shm_object_table_alloc_shm(table, memory_map_size); case SHM_OBJECT_MEM: return _shm_object_table_alloc_mem(table, memory_map_size); default: assert(0); } return NULL; } struct shm_object *shm_object_table_append_shm(struct shm_object_table *table, int shm_fd, int wakeup_fd, uint32_t stream_nr, size_t memory_map_size) { struct shm_object *obj; char *memory_map; int ret; if (table->allocated_len >= table->size) return NULL; /* streams _must_ be received in sequential order, else fail. */ if (stream_nr + 1 != table->allocated_len) return NULL; obj = &table->objects[table->allocated_len]; /* wait_fd: set write end of the pipe. */ obj->wait_fd[0] = -1; /* read end is unset */ obj->wait_fd[1] = wakeup_fd; obj->shm_fd = shm_fd; ret = fcntl(obj->wait_fd[1], F_SETFD, FD_CLOEXEC); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } /* The write end of the pipe needs to be non-blocking */ ret = fcntl(obj->wait_fd[1], F_SETFL, O_NONBLOCK); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } /* memory_map: mmap */ memory_map = mmap(NULL, memory_map_size, PROT_READ | PROT_WRITE, MAP_SHARED, shm_fd, 0); if (memory_map == MAP_FAILED) { PERROR("mmap"); goto error_mmap; } obj->type = SHM_OBJECT_SHM; obj->memory_map = memory_map; obj->memory_map_size = memory_map_size; obj->allocated_len = memory_map_size; obj->index = table->allocated_len++; return obj; error_fcntl: error_mmap: return NULL; } /* * Passing ownership of mem to object. */ struct shm_object *shm_object_table_append_mem(struct shm_object_table *table, void *mem, size_t memory_map_size, int wakeup_fd) { struct shm_object *obj; int ret; if (table->allocated_len >= table->size) return NULL; obj = &table->objects[table->allocated_len]; obj->wait_fd[0] = -1; /* read end is unset */ obj->wait_fd[1] = wakeup_fd; obj->shm_fd = -1; ret = fcntl(obj->wait_fd[1], F_SETFD, FD_CLOEXEC); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } /* The write end of the pipe needs to be non-blocking */ ret = fcntl(obj->wait_fd[1], F_SETFL, O_NONBLOCK); if (ret < 0) { PERROR("fcntl"); goto error_fcntl; } obj->type = SHM_OBJECT_MEM; obj->memory_map = mem; obj->memory_map_size = memory_map_size; obj->allocated_len = memory_map_size; obj->index = table->allocated_len++; return obj; error_fcntl: return NULL; } static void shmp_object_destroy(struct shm_object *obj) { switch (obj->type) { case SHM_OBJECT_SHM: { int ret, i; ret = munmap(obj->memory_map, obj->memory_map_size); if (ret) { PERROR("umnmap"); assert(0); } ret = close(obj->shm_fd); if (ret) { PERROR("close"); assert(0); } for (i = 0; i < 2; i++) { if (obj->wait_fd[i] < 0) continue; ret = close(obj->wait_fd[i]); if (ret) { PERROR("close"); assert(0); } } break; } case SHM_OBJECT_MEM: { int ret, i; for (i = 0; i < 2; i++) { if (obj->wait_fd[i] < 0) continue; ret = close(obj->wait_fd[i]); if (ret) { PERROR("close"); assert(0); } } free(obj->memory_map); break; } default: assert(0); } } void shm_object_table_destroy(struct shm_object_table *table) { int i; for (i = 0; i < table->allocated_len; i++) shmp_object_destroy(&table->objects[i]); free(table); } /* * zalloc_shm - allocate memory within a shm object. * * Shared memory is already zeroed by shmget. * *NOT* multithread-safe (should be protected by mutex). * Returns a -1, -1 tuple on error. */ struct shm_ref zalloc_shm(struct shm_object *obj, size_t len) { struct shm_ref ref; struct shm_ref shm_ref_error = { -1, -1 }; if (obj->memory_map_size - obj->allocated_len < len) return shm_ref_error; ref.index = obj->index; ref.offset = obj->allocated_len; obj->allocated_len += len; return ref; } void align_shm(struct shm_object *obj, size_t align) { size_t offset_len = offset_align(obj->allocated_len, align); obj->allocated_len += offset_len; } lttng-ust-2.4.0/libringbuffer/ring_buffer_frontend.c0000644000175000017500000015735012304144741017565 00000000000000/* * ring_buffer_frontend.c * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * * Ring buffer wait-free buffer synchronization. Producer-consumer and flight * recorder (overwrite) modes. See thesis: * * Desnoyers, Mathieu (2009), "Low-Impact Operating System Tracing", Ph.D. * dissertation, Ecole Polytechnique de Montreal. * http://www.lttng.org/pub/thesis/desnoyers-dissertation-2009-12.pdf * * - Algorithm presentation in Chapter 5: * "Lockless Multi-Core High-Throughput Buffering". * - Algorithm formal verification in Section 8.6: * "Formal verification of LTTng" * * Author: * Mathieu Desnoyers * * Inspired from LTT and RelayFS: * Karim Yaghmour * Tom Zanussi * Bob Wisniewski * And from K42 : * Bob Wisniewski * * Buffer reader semantic : * * - get_subbuf_size * while buffer is not finalized and empty * - get_subbuf * - if return value != 0, continue * - splice one subbuffer worth of data to a pipe * - splice the data from pipe to disk/network * - put_subbuf */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include "smp.h" #include #include "vatomic.h" #include "backend.h" #include "frontend.h" #include "shm.h" #include "tlsfixup.h" #include "../liblttng-ust/compat.h" /* For ENODATA */ #ifndef max #define max(a, b) ((a) > (b) ? (a) : (b)) #endif /* Print DBG() messages about events lost only every 1048576 hits */ #define DBG_PRINT_NR_LOST (1UL << 20) #define LTTNG_UST_RB_SIG_FLUSH SIGRTMIN #define LTTNG_UST_RB_SIG_READ SIGRTMIN + 1 #define LTTNG_UST_RB_SIG_TEARDOWN SIGRTMIN + 2 #define CLOCKID CLOCK_MONOTONIC /* * Use POSIX SHM: shm_open(3) and shm_unlink(3). * close(2) to close the fd returned by shm_open. * shm_unlink releases the shared memory object name. * ftruncate(2) sets the size of the memory object. * mmap/munmap maps the shared memory obj to a virtual address in the * calling proceess (should be done both in libust and consumer). * See shm_overview(7) for details. * Pass file descriptor returned by shm_open(3) to ltt-sessiond through * a UNIX socket. * * Since we don't need to access the object using its name, we can * immediately shm_unlink(3) it, and only keep the handle with its file * descriptor. */ /* * Internal structure representing offsets to use at a sub-buffer switch. */ struct switch_offsets { unsigned long begin, end, old; size_t pre_header_padding, size; unsigned int switch_new_start:1, switch_new_end:1, switch_old_start:1, switch_old_end:1; }; DEFINE_URCU_TLS(unsigned int, lib_ring_buffer_nesting); /* * wakeup_fd_mutex protects wakeup fd use by timer from concurrent * close. */ static pthread_mutex_t wakeup_fd_mutex = PTHREAD_MUTEX_INITIALIZER; static void lib_ring_buffer_print_errors(struct channel *chan, struct lttng_ust_lib_ring_buffer *buf, int cpu, struct lttng_ust_shm_handle *handle); /* * Handle timer teardown race wrt memory free of private data by * ring buffer signals are handled by a single thread, which permits * a synchronization point between handling of each signal. * Protected by the lock within the structure. */ struct timer_signal_data { pthread_t tid; /* thread id managing signals */ int setup_done; int qs_done; pthread_mutex_t lock; }; static struct timer_signal_data timer_signal = { .tid = 0, .setup_done = 0, .qs_done = 0, .lock = PTHREAD_MUTEX_INITIALIZER, }; /** * lib_ring_buffer_reset - Reset ring buffer to initial values. * @buf: Ring buffer. * * Effectively empty the ring buffer. Should be called when the buffer is not * used for writing. The ring buffer can be opened for reading, but the reader * should not be using the iterator concurrently with reset. The previous * current iterator record is reset. */ void lib_ring_buffer_reset(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned int i; /* * Reset iterator first. It will put the subbuffer if it currently holds * it. */ v_set(config, &buf->offset, 0); for (i = 0; i < chan->backend.num_subbuf; i++) { v_set(config, &shmp_index(handle, buf->commit_hot, i)->cc, 0); v_set(config, &shmp_index(handle, buf->commit_hot, i)->seq, 0); v_set(config, &shmp_index(handle, buf->commit_cold, i)->cc_sb, 0); } uatomic_set(&buf->consumed, 0); uatomic_set(&buf->record_disabled, 0); v_set(config, &buf->last_tsc, 0); lib_ring_buffer_backend_reset(&buf->backend, handle); /* Don't reset number of active readers */ v_set(config, &buf->records_lost_full, 0); v_set(config, &buf->records_lost_wrap, 0); v_set(config, &buf->records_lost_big, 0); v_set(config, &buf->records_count, 0); v_set(config, &buf->records_overrun, 0); buf->finalized = 0; } /** * channel_reset - Reset channel to initial values. * @chan: Channel. * * Effectively empty the channel. Should be called when the channel is not used * for writing. The channel can be opened for reading, but the reader should not * be using the iterator concurrently with reset. The previous current iterator * record is reset. */ void channel_reset(struct channel *chan) { /* * Reset iterators first. Will put the subbuffer if held for reading. */ uatomic_set(&chan->record_disabled, 0); /* Don't reset commit_count_mask, still valid */ channel_backend_reset(&chan->backend); /* Don't reset switch/read timer interval */ /* Don't reset notifiers and notifier enable bits */ /* Don't reset reader reference count */ } /* * Must be called under cpu hotplug protection. */ int lib_ring_buffer_create(struct lttng_ust_lib_ring_buffer *buf, struct channel_backend *chanb, int cpu, struct lttng_ust_shm_handle *handle, struct shm_object *shmobj) { const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; struct channel *chan = caa_container_of(chanb, struct channel, backend); void *priv = channel_get_private(chan); size_t subbuf_header_size; uint64_t tsc; int ret; /* Test for cpu hotplug */ if (buf->backend.allocated) return 0; ret = lib_ring_buffer_backend_create(&buf->backend, &chan->backend, cpu, handle, shmobj); if (ret) return ret; align_shm(shmobj, __alignof__(struct commit_counters_hot)); set_shmp(buf->commit_hot, zalloc_shm(shmobj, sizeof(struct commit_counters_hot) * chan->backend.num_subbuf)); if (!shmp(handle, buf->commit_hot)) { ret = -ENOMEM; goto free_chanbuf; } align_shm(shmobj, __alignof__(struct commit_counters_cold)); set_shmp(buf->commit_cold, zalloc_shm(shmobj, sizeof(struct commit_counters_cold) * chan->backend.num_subbuf)); if (!shmp(handle, buf->commit_cold)) { ret = -ENOMEM; goto free_commit; } /* * Write the subbuffer header for first subbuffer so we know the total * duration of data gathering. */ subbuf_header_size = config->cb.subbuffer_header_size(); v_set(config, &buf->offset, subbuf_header_size); subbuffer_id_clear_noref(config, &shmp_index(handle, buf->backend.buf_wsb, 0)->id); tsc = config->cb.ring_buffer_clock_read(shmp(handle, buf->backend.chan)); config->cb.buffer_begin(buf, tsc, 0, handle); v_add(config, subbuf_header_size, &shmp_index(handle, buf->commit_hot, 0)->cc); if (config->cb.buffer_create) { ret = config->cb.buffer_create(buf, priv, cpu, chanb->name, handle); if (ret) goto free_init; } buf->backend.allocated = 1; return 0; /* Error handling */ free_init: /* commit_cold will be freed by shm teardown */ free_commit: /* commit_hot will be freed by shm teardown */ free_chanbuf: return ret; } static void lib_ring_buffer_channel_switch_timer(int sig, siginfo_t *si, void *uc) { const struct lttng_ust_lib_ring_buffer_config *config; struct lttng_ust_shm_handle *handle; struct channel *chan; int cpu; assert(CMM_LOAD_SHARED(timer_signal.tid) == pthread_self()); chan = si->si_value.sival_ptr; handle = chan->handle; config = &chan->backend.config; DBG("Switch timer for channel %p\n", chan); /* * Only flush buffers periodically if readers are active. */ pthread_mutex_lock(&wakeup_fd_mutex); if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) { for_each_possible_cpu(cpu) { struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp); if (uatomic_read(&buf->active_readers)) lib_ring_buffer_switch_slow(buf, SWITCH_ACTIVE, chan->handle); } } else { struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp); if (uatomic_read(&buf->active_readers)) lib_ring_buffer_switch_slow(buf, SWITCH_ACTIVE, chan->handle); } pthread_mutex_unlock(&wakeup_fd_mutex); return; } static void lib_ring_buffer_channel_do_read(struct channel *chan) { const struct lttng_ust_lib_ring_buffer_config *config; struct lttng_ust_shm_handle *handle; int cpu; handle = chan->handle; config = &chan->backend.config; /* * Only flush buffers periodically if readers are active. */ pthread_mutex_lock(&wakeup_fd_mutex); if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) { for_each_possible_cpu(cpu) { struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp); if (uatomic_read(&buf->active_readers) && lib_ring_buffer_poll_deliver(config, buf, chan, handle)) { lib_ring_buffer_wakeup(buf, handle); } } } else { struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp); if (uatomic_read(&buf->active_readers) && lib_ring_buffer_poll_deliver(config, buf, chan, handle)) { lib_ring_buffer_wakeup(buf, handle); } } pthread_mutex_unlock(&wakeup_fd_mutex); } static void lib_ring_buffer_channel_read_timer(int sig, siginfo_t *si, void *uc) { struct channel *chan; assert(CMM_LOAD_SHARED(timer_signal.tid) == pthread_self()); chan = si->si_value.sival_ptr; DBG("Read timer for channel %p\n", chan); lib_ring_buffer_channel_do_read(chan); return; } static void rb_setmask(sigset_t *mask) { int ret; ret = sigemptyset(mask); if (ret) { PERROR("sigemptyset"); } ret = sigaddset(mask, LTTNG_UST_RB_SIG_FLUSH); if (ret) { PERROR("sigaddset"); } ret = sigaddset(mask, LTTNG_UST_RB_SIG_READ); if (ret) { PERROR("sigaddset"); } ret = sigaddset(mask, LTTNG_UST_RB_SIG_TEARDOWN); if (ret) { PERROR("sigaddset"); } } static void *sig_thread(void *arg) { sigset_t mask; siginfo_t info; int signr; /* Only self thread will receive signal mask. */ rb_setmask(&mask); CMM_STORE_SHARED(timer_signal.tid, pthread_self()); for (;;) { signr = sigwaitinfo(&mask, &info); if (signr == -1) { if (errno != EINTR) PERROR("sigwaitinfo"); continue; } if (signr == LTTNG_UST_RB_SIG_FLUSH) { lib_ring_buffer_channel_switch_timer(info.si_signo, &info, NULL); } else if (signr == LTTNG_UST_RB_SIG_READ) { lib_ring_buffer_channel_read_timer(info.si_signo, &info, NULL); } else if (signr == LTTNG_UST_RB_SIG_TEARDOWN) { cmm_smp_mb(); CMM_STORE_SHARED(timer_signal.qs_done, 1); cmm_smp_mb(); } else { ERR("Unexptected signal %d\n", info.si_signo); } } return NULL; } /* * Ensure only a single thread listens on the timer signal. */ static void lib_ring_buffer_setup_timer_thread(void) { pthread_t thread; int ret; pthread_mutex_lock(&timer_signal.lock); if (timer_signal.setup_done) goto end; ret = pthread_create(&thread, NULL, &sig_thread, NULL); if (ret) { errno = ret; PERROR("pthread_create"); } ret = pthread_detach(thread); if (ret) { errno = ret; PERROR("pthread_detach"); } timer_signal.setup_done = 1; end: pthread_mutex_unlock(&timer_signal.lock); } /* * Wait for signal-handling thread quiescent state. */ static void lib_ring_buffer_wait_signal_thread_qs(unsigned int signr) { sigset_t pending_set; int ret; /* * We need to be the only thread interacting with the thread * that manages signals for teardown synchronization. */ pthread_mutex_lock(&timer_signal.lock); /* * Ensure we don't have any signal queued for this channel. */ for (;;) { ret = sigemptyset(&pending_set); if (ret == -1) { PERROR("sigemptyset"); } ret = sigpending(&pending_set); if (ret == -1) { PERROR("sigpending"); } if (!sigismember(&pending_set, signr)) break; caa_cpu_relax(); } /* * From this point, no new signal handler will be fired that * would try to access "chan". However, we still need to wait * for any currently executing handler to complete. */ cmm_smp_mb(); CMM_STORE_SHARED(timer_signal.qs_done, 0); cmm_smp_mb(); /* * Kill with LTTNG_UST_RB_SIG_TEARDOWN, so signal management * thread wakes up. */ kill(getpid(), LTTNG_UST_RB_SIG_TEARDOWN); while (!CMM_LOAD_SHARED(timer_signal.qs_done)) caa_cpu_relax(); cmm_smp_mb(); pthread_mutex_unlock(&timer_signal.lock); } static void lib_ring_buffer_channel_switch_timer_start(struct channel *chan) { struct sigevent sev; struct itimerspec its; int ret; if (!chan->switch_timer_interval || chan->switch_timer_enabled) return; chan->switch_timer_enabled = 1; lib_ring_buffer_setup_timer_thread(); sev.sigev_notify = SIGEV_SIGNAL; sev.sigev_signo = LTTNG_UST_RB_SIG_FLUSH; sev.sigev_value.sival_ptr = chan; ret = timer_create(CLOCKID, &sev, &chan->switch_timer); if (ret == -1) { PERROR("timer_create"); } its.it_value.tv_sec = chan->switch_timer_interval / 1000000; its.it_value.tv_nsec = chan->switch_timer_interval % 1000000; its.it_interval.tv_sec = its.it_value.tv_sec; its.it_interval.tv_nsec = its.it_value.tv_nsec; ret = timer_settime(chan->switch_timer, 0, &its, NULL); if (ret == -1) { PERROR("timer_settime"); } } static void lib_ring_buffer_channel_switch_timer_stop(struct channel *chan) { int ret; if (!chan->switch_timer_interval || !chan->switch_timer_enabled) return; ret = timer_delete(chan->switch_timer); if (ret == -1) { PERROR("timer_delete"); } lib_ring_buffer_wait_signal_thread_qs(LTTNG_UST_RB_SIG_FLUSH); chan->switch_timer = 0; chan->switch_timer_enabled = 0; } static void lib_ring_buffer_channel_read_timer_start(struct channel *chan) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; struct sigevent sev; struct itimerspec its; int ret; if (config->wakeup != RING_BUFFER_WAKEUP_BY_TIMER || !chan->read_timer_interval || chan->read_timer_enabled) return; chan->read_timer_enabled = 1; lib_ring_buffer_setup_timer_thread(); sev.sigev_notify = SIGEV_SIGNAL; sev.sigev_signo = LTTNG_UST_RB_SIG_READ; sev.sigev_value.sival_ptr = chan; ret = timer_create(CLOCKID, &sev, &chan->read_timer); if (ret == -1) { PERROR("timer_create"); } its.it_value.tv_sec = chan->read_timer_interval / 1000000; its.it_value.tv_nsec = chan->read_timer_interval % 1000000; its.it_interval.tv_sec = its.it_value.tv_sec; its.it_interval.tv_nsec = its.it_value.tv_nsec; ret = timer_settime(chan->read_timer, 0, &its, NULL); if (ret == -1) { PERROR("timer_settime"); } } static void lib_ring_buffer_channel_read_timer_stop(struct channel *chan) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; int ret; if (config->wakeup != RING_BUFFER_WAKEUP_BY_TIMER || !chan->read_timer_interval || !chan->read_timer_enabled) return; ret = timer_delete(chan->read_timer); if (ret == -1) { PERROR("timer_delete"); } /* * do one more check to catch data that has been written in the last * timer period. */ lib_ring_buffer_channel_do_read(chan); lib_ring_buffer_wait_signal_thread_qs(LTTNG_UST_RB_SIG_READ); chan->read_timer = 0; chan->read_timer_enabled = 0; } static void channel_unregister_notifiers(struct channel *chan, struct lttng_ust_shm_handle *handle) { lib_ring_buffer_channel_switch_timer_stop(chan); lib_ring_buffer_channel_read_timer_stop(chan); } static void channel_print_errors(struct channel *chan, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; int cpu; if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) { for_each_possible_cpu(cpu) { struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp); lib_ring_buffer_print_errors(chan, buf, cpu, handle); } } else { struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp); lib_ring_buffer_print_errors(chan, buf, -1, handle); } } static void channel_free(struct channel *chan, struct lttng_ust_shm_handle *handle) { channel_backend_free(&chan->backend, handle); /* chan is freed by shm teardown */ shm_object_table_destroy(handle->table); free(handle); } /** * channel_create - Create channel. * @config: ring buffer instance configuration * @name: name of the channel * @priv_data: ring buffer client private data area pointer (output) * @priv_data_size: length, in bytes, of the private data area. * @priv_data_init: initialization data for private data. * @buf_addr: pointer the the beginning of the preallocated buffer contiguous * address mapping. It is used only by RING_BUFFER_STATIC * configuration. It can be set to NULL for other backends. * @subbuf_size: subbuffer size * @num_subbuf: number of subbuffers * @switch_timer_interval: Time interval (in us) to fill sub-buffers with * padding to let readers get those sub-buffers. * Used for live streaming. * @read_timer_interval: Time interval (in us) to wake up pending readers. * * Holds cpu hotplug. * Returns NULL on failure. */ struct lttng_ust_shm_handle *channel_create(const struct lttng_ust_lib_ring_buffer_config *config, const char *name, void **priv_data, size_t priv_data_align, size_t priv_data_size, void *priv_data_init, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval) { int ret; size_t shmsize, chansize; struct channel *chan; struct lttng_ust_shm_handle *handle; struct shm_object *shmobj; unsigned int nr_streams; if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) nr_streams = num_possible_cpus(); else nr_streams = 1; if (lib_ring_buffer_check_config(config, switch_timer_interval, read_timer_interval)) return NULL; handle = zmalloc(sizeof(struct lttng_ust_shm_handle)); if (!handle) return NULL; /* Allocate table for channel + per-cpu buffers */ handle->table = shm_object_table_create(1 + num_possible_cpus()); if (!handle->table) goto error_table_alloc; /* Calculate the shm allocation layout */ shmsize = sizeof(struct channel); shmsize += offset_align(shmsize, __alignof__(struct lttng_ust_lib_ring_buffer_shmp)); shmsize += sizeof(struct lttng_ust_lib_ring_buffer_shmp) * nr_streams; chansize = shmsize; if (priv_data_align) shmsize += offset_align(shmsize, priv_data_align); shmsize += priv_data_size; /* Allocate normal memory for channel (not shared) */ shmobj = shm_object_table_alloc(handle->table, shmsize, SHM_OBJECT_MEM); if (!shmobj) goto error_append; /* struct channel is at object 0, offset 0 (hardcoded) */ set_shmp(handle->chan, zalloc_shm(shmobj, chansize)); assert(handle->chan._ref.index == 0); assert(handle->chan._ref.offset == 0); chan = shmp(handle, handle->chan); if (!chan) goto error_append; chan->nr_streams = nr_streams; /* space for private data */ if (priv_data_size) { DECLARE_SHMP(void, priv_data_alloc); align_shm(shmobj, priv_data_align); chan->priv_data_offset = shmobj->allocated_len; set_shmp(priv_data_alloc, zalloc_shm(shmobj, priv_data_size)); if (!shmp(handle, priv_data_alloc)) goto error_append; *priv_data = channel_get_private(chan); memcpy(*priv_data, priv_data_init, priv_data_size); } else { chan->priv_data_offset = -1; if (priv_data) *priv_data = NULL; } ret = channel_backend_init(&chan->backend, name, config, subbuf_size, num_subbuf, handle); if (ret) goto error_backend_init; chan->handle = handle; chan->commit_count_mask = (~0UL >> chan->backend.num_subbuf_order); chan->switch_timer_interval = switch_timer_interval; chan->read_timer_interval = read_timer_interval; lib_ring_buffer_channel_switch_timer_start(chan); lib_ring_buffer_channel_read_timer_start(chan); return handle; error_backend_init: error_append: shm_object_table_destroy(handle->table); error_table_alloc: free(handle); return NULL; } struct lttng_ust_shm_handle *channel_handle_create(void *data, uint64_t memory_map_size, int wakeup_fd) { struct lttng_ust_shm_handle *handle; struct shm_object *object; handle = zmalloc(sizeof(struct lttng_ust_shm_handle)); if (!handle) return NULL; /* Allocate table for channel + per-cpu buffers */ handle->table = shm_object_table_create(1 + num_possible_cpus()); if (!handle->table) goto error_table_alloc; /* Add channel object */ object = shm_object_table_append_mem(handle->table, data, memory_map_size, wakeup_fd); if (!object) goto error_table_object; /* struct channel is at object 0, offset 0 (hardcoded) */ handle->chan._ref.index = 0; handle->chan._ref.offset = 0; return handle; error_table_object: shm_object_table_destroy(handle->table); error_table_alloc: free(handle); return NULL; } int channel_handle_add_stream(struct lttng_ust_shm_handle *handle, int shm_fd, int wakeup_fd, uint32_t stream_nr, uint64_t memory_map_size) { struct shm_object *object; /* Add stream object */ object = shm_object_table_append_shm(handle->table, shm_fd, wakeup_fd, stream_nr, memory_map_size); if (!object) return -EINVAL; return 0; } unsigned int channel_handle_get_nr_streams(struct lttng_ust_shm_handle *handle) { assert(handle->table); return handle->table->allocated_len - 1; } static void channel_release(struct channel *chan, struct lttng_ust_shm_handle *handle) { channel_free(chan, handle); } /** * channel_destroy - Finalize, wait for q.s. and destroy channel. * @chan: channel to destroy * * Holds cpu hotplug. * Call "destroy" callback, finalize channels, decrement the channel * reference count. Note that when readers have completed data * consumption of finalized channels, get_subbuf() will return -ENODATA. * They should release their handle at that point. */ void channel_destroy(struct channel *chan, struct lttng_ust_shm_handle *handle, int consumer) { if (consumer) { /* * Note: the consumer takes care of finalizing and * switching the buffers. */ channel_unregister_notifiers(chan, handle); /* * The consumer prints errors. */ channel_print_errors(chan, handle); } /* * sessiond/consumer are keeping a reference on the shm file * descriptor directly. No need to refcount. */ channel_release(chan, handle); return; } struct lttng_ust_lib_ring_buffer *channel_get_ring_buffer( const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, int cpu, struct lttng_ust_shm_handle *handle, int *shm_fd, int *wait_fd, int *wakeup_fd, uint64_t *memory_map_size) { struct shm_ref *ref; if (config->alloc == RING_BUFFER_ALLOC_GLOBAL) { cpu = 0; } else { if (cpu >= num_possible_cpus()) return NULL; } ref = &chan->backend.buf[cpu].shmp._ref; *shm_fd = shm_get_shm_fd(handle, ref); *wait_fd = shm_get_wait_fd(handle, ref); *wakeup_fd = shm_get_wakeup_fd(handle, ref); if (shm_get_shm_size(handle, ref, memory_map_size)) return NULL; return shmp(handle, chan->backend.buf[cpu].shmp); } int ring_buffer_channel_close_wait_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle) { struct shm_ref *ref; ref = &handle->chan._ref; return shm_close_wait_fd(handle, ref); } int ring_buffer_channel_close_wakeup_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle) { struct shm_ref *ref; ref = &handle->chan._ref; return shm_close_wakeup_fd(handle, ref); } int ring_buffer_stream_close_wait_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle, int cpu) { struct shm_ref *ref; if (config->alloc == RING_BUFFER_ALLOC_GLOBAL) { cpu = 0; } else { if (cpu >= num_possible_cpus()) return -EINVAL; } ref = &chan->backend.buf[cpu].shmp._ref; return shm_close_wait_fd(handle, ref); } int ring_buffer_stream_close_wakeup_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle, int cpu) { struct shm_ref *ref; int ret; if (config->alloc == RING_BUFFER_ALLOC_GLOBAL) { cpu = 0; } else { if (cpu >= num_possible_cpus()) return -EINVAL; } ref = &chan->backend.buf[cpu].shmp._ref; pthread_mutex_lock(&wakeup_fd_mutex); ret = shm_close_wakeup_fd(handle, ref); pthread_mutex_unlock(&wakeup_fd_mutex); return ret; } int lib_ring_buffer_open_read(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { if (uatomic_cmpxchg(&buf->active_readers, 0, 1) != 0) return -EBUSY; cmm_smp_mb(); return 0; } void lib_ring_buffer_release_read(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); CHAN_WARN_ON(chan, uatomic_read(&buf->active_readers) != 1); cmm_smp_mb(); uatomic_dec(&buf->active_readers); } /** * lib_ring_buffer_snapshot - save subbuffer position snapshot (for read) * @buf: ring buffer * @consumed: consumed count indicating the position where to read * @produced: produced count, indicates position when to stop reading * * Returns -ENODATA if buffer is finalized, -EAGAIN if there is currently no * data to read at consumed position, or 0 if the get operation succeeds. */ int lib_ring_buffer_snapshot(struct lttng_ust_lib_ring_buffer *buf, unsigned long *consumed, unsigned long *produced, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long consumed_cur, write_offset; int finalized; finalized = CMM_ACCESS_ONCE(buf->finalized); /* * Read finalized before counters. */ cmm_smp_rmb(); consumed_cur = uatomic_read(&buf->consumed); /* * No need to issue a memory barrier between consumed count read and * write offset read, because consumed count can only change * concurrently in overwrite mode, and we keep a sequence counter * identifier derived from the write offset to check we are getting * the same sub-buffer we are expecting (the sub-buffers are atomically * "tagged" upon writes, tags are checked upon read). */ write_offset = v_read(config, &buf->offset); /* * Check that we are not about to read the same subbuffer in * which the writer head is. */ if (subbuf_trunc(write_offset, chan) - subbuf_trunc(consumed_cur, chan) == 0) goto nodata; *consumed = consumed_cur; *produced = subbuf_trunc(write_offset, chan); return 0; nodata: /* * The memory barriers __wait_event()/wake_up_interruptible() take care * of "raw_spin_is_locked" memory ordering. */ if (finalized) return -ENODATA; else return -EAGAIN; } /** * lib_ring_buffer_move_consumer - move consumed counter forward * @buf: ring buffer * @consumed_new: new consumed count value */ void lib_ring_buffer_move_consumer(struct lttng_ust_lib_ring_buffer *buf, unsigned long consumed_new, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend *bufb = &buf->backend; struct channel *chan = shmp(handle, bufb->chan); unsigned long consumed; CHAN_WARN_ON(chan, uatomic_read(&buf->active_readers) != 1); /* * Only push the consumed value forward. * If the consumed cmpxchg fails, this is because we have been pushed by * the writer in flight recorder mode. */ consumed = uatomic_read(&buf->consumed); while ((long) consumed - (long) consumed_new < 0) consumed = uatomic_cmpxchg(&buf->consumed, consumed, consumed_new); } /** * lib_ring_buffer_get_subbuf - get exclusive access to subbuffer for reading * @buf: ring buffer * @consumed: consumed count indicating the position where to read * * Returns -ENODATA if buffer is finalized, -EAGAIN if there is currently no * data to read at consumed position, or 0 if the get operation succeeds. */ int lib_ring_buffer_get_subbuf(struct lttng_ust_lib_ring_buffer *buf, unsigned long consumed, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long consumed_cur, consumed_idx, commit_count, write_offset; int ret; int finalized; retry: finalized = CMM_ACCESS_ONCE(buf->finalized); /* * Read finalized before counters. */ cmm_smp_rmb(); consumed_cur = uatomic_read(&buf->consumed); consumed_idx = subbuf_index(consumed, chan); commit_count = v_read(config, &shmp_index(handle, buf->commit_cold, consumed_idx)->cc_sb); /* * Make sure we read the commit count before reading the buffer * data and the write offset. Correct consumed offset ordering * wrt commit count is insured by the use of cmpxchg to update * the consumed offset. */ /* * Local rmb to match the remote wmb to read the commit count * before the buffer data and the write offset. */ cmm_smp_rmb(); write_offset = v_read(config, &buf->offset); /* * Check that the buffer we are getting is after or at consumed_cur * position. */ if ((long) subbuf_trunc(consumed, chan) - (long) subbuf_trunc(consumed_cur, chan) < 0) goto nodata; /* * Check that the subbuffer we are trying to consume has been * already fully committed. */ if (((commit_count - chan->backend.subbuf_size) & chan->commit_count_mask) - (buf_trunc(consumed, chan) >> chan->backend.num_subbuf_order) != 0) goto nodata; /* * Check that we are not about to read the same subbuffer in * which the writer head is. */ if (subbuf_trunc(write_offset, chan) - subbuf_trunc(consumed, chan) == 0) goto nodata; /* * Failure to get the subbuffer causes a busy-loop retry without going * to a wait queue. These are caused by short-lived race windows where * the writer is getting access to a subbuffer we were trying to get * access to. Also checks that the "consumed" buffer count we are * looking for matches the one contained in the subbuffer id. */ ret = update_read_sb_index(config, &buf->backend, &chan->backend, consumed_idx, buf_trunc_val(consumed, chan), handle); if (ret) goto retry; subbuffer_id_clear_noref(config, &buf->backend.buf_rsb.id); buf->get_subbuf_consumed = consumed; buf->get_subbuf = 1; return 0; nodata: /* * The memory barriers __wait_event()/wake_up_interruptible() take care * of "raw_spin_is_locked" memory ordering. */ if (finalized) return -ENODATA; else return -EAGAIN; } /** * lib_ring_buffer_put_subbuf - release exclusive subbuffer access * @buf: ring buffer */ void lib_ring_buffer_put_subbuf(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend *bufb = &buf->backend; struct channel *chan = shmp(handle, bufb->chan); const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long read_sb_bindex, consumed_idx, consumed; CHAN_WARN_ON(chan, uatomic_read(&buf->active_readers) != 1); if (!buf->get_subbuf) { /* * Reader puts a subbuffer it did not get. */ CHAN_WARN_ON(chan, 1); return; } consumed = buf->get_subbuf_consumed; buf->get_subbuf = 0; /* * Clear the records_unread counter. (overruns counter) * Can still be non-zero if a file reader simply grabbed the data * without using iterators. * Can be below zero if an iterator is used on a snapshot more than * once. */ read_sb_bindex = subbuffer_id_get_index(config, bufb->buf_rsb.id); v_add(config, v_read(config, &shmp(handle, shmp_index(handle, bufb->array, read_sb_bindex)->shmp)->records_unread), &bufb->records_read); v_set(config, &shmp(handle, shmp_index(handle, bufb->array, read_sb_bindex)->shmp)->records_unread, 0); CHAN_WARN_ON(chan, config->mode == RING_BUFFER_OVERWRITE && subbuffer_id_is_noref(config, bufb->buf_rsb.id)); subbuffer_id_set_noref(config, &bufb->buf_rsb.id); /* * Exchange the reader subbuffer with the one we put in its place in the * writer subbuffer table. Expect the original consumed count. If * update_read_sb_index fails, this is because the writer updated the * subbuffer concurrently. We should therefore keep the subbuffer we * currently have: it has become invalid to try reading this sub-buffer * consumed count value anyway. */ consumed_idx = subbuf_index(consumed, chan); update_read_sb_index(config, &buf->backend, &chan->backend, consumed_idx, buf_trunc_val(consumed, chan), handle); /* * update_read_sb_index return value ignored. Don't exchange sub-buffer * if the writer concurrently updated it. */ } /* * cons_offset is an iterator on all subbuffer offsets between the reader * position and the writer position. (inclusive) */ static void lib_ring_buffer_print_subbuffer_errors(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, unsigned long cons_offset, int cpu, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long cons_idx, commit_count, commit_count_sb; cons_idx = subbuf_index(cons_offset, chan); commit_count = v_read(config, &shmp_index(handle, buf->commit_hot, cons_idx)->cc); commit_count_sb = v_read(config, &shmp_index(handle, buf->commit_cold, cons_idx)->cc_sb); if (subbuf_offset(commit_count, chan) != 0) DBG("ring buffer %s, cpu %d: " "commit count in subbuffer %lu,\n" "expecting multiples of %lu bytes\n" " [ %lu bytes committed, %lu bytes reader-visible ]\n", chan->backend.name, cpu, cons_idx, chan->backend.subbuf_size, commit_count, commit_count_sb); DBG("ring buffer: %s, cpu %d: %lu bytes committed\n", chan->backend.name, cpu, commit_count); } static void lib_ring_buffer_print_buffer_errors(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, void *priv, int cpu, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long write_offset, cons_offset; /* * No need to order commit_count, write_offset and cons_offset reads * because we execute at teardown when no more writer nor reader * references are left. */ write_offset = v_read(config, &buf->offset); cons_offset = uatomic_read(&buf->consumed); if (write_offset != cons_offset) DBG("ring buffer %s, cpu %d: " "non-consumed data\n" " [ %lu bytes written, %lu bytes read ]\n", chan->backend.name, cpu, write_offset, cons_offset); for (cons_offset = uatomic_read(&buf->consumed); (long) (subbuf_trunc((unsigned long) v_read(config, &buf->offset), chan) - cons_offset) > 0; cons_offset = subbuf_align(cons_offset, chan)) lib_ring_buffer_print_subbuffer_errors(buf, chan, cons_offset, cpu, handle); } static void lib_ring_buffer_print_errors(struct channel *chan, struct lttng_ust_lib_ring_buffer *buf, int cpu, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; void *priv = channel_get_private(chan); if (!strcmp(chan->backend.name, "relay-metadata-mmap")) { DBG("ring buffer %s: %lu records written, " "%lu records overrun\n", chan->backend.name, v_read(config, &buf->records_count), v_read(config, &buf->records_overrun)); } else { DBG("ring buffer %s, cpu %d: %lu records written, " "%lu records overrun\n", chan->backend.name, cpu, v_read(config, &buf->records_count), v_read(config, &buf->records_overrun)); if (v_read(config, &buf->records_lost_full) || v_read(config, &buf->records_lost_wrap) || v_read(config, &buf->records_lost_big)) DBG("ring buffer %s, cpu %d: records were lost. Caused by:\n" " [ %lu buffer full, %lu nest buffer wrap-around, " "%lu event too big ]\n", chan->backend.name, cpu, v_read(config, &buf->records_lost_full), v_read(config, &buf->records_lost_wrap), v_read(config, &buf->records_lost_big)); } lib_ring_buffer_print_buffer_errors(buf, chan, priv, cpu, handle); } /* * lib_ring_buffer_switch_old_start: Populate old subbuffer header. * * Only executed when the buffer is finalized, in SWITCH_FLUSH. */ static void lib_ring_buffer_switch_old_start(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct switch_offsets *offsets, uint64_t tsc, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long oldidx = subbuf_index(offsets->old, chan); unsigned long commit_count; config->cb.buffer_begin(buf, tsc, oldidx, handle); /* * Order all writes to buffer before the commit count update that will * determine that the subbuffer is full. */ cmm_smp_wmb(); v_add(config, config->cb.subbuffer_header_size(), &shmp_index(handle, buf->commit_hot, oldidx)->cc); commit_count = v_read(config, &shmp_index(handle, buf->commit_hot, oldidx)->cc); /* Check if the written buffer has to be delivered */ lib_ring_buffer_check_deliver(config, buf, chan, offsets->old, commit_count, oldidx, handle, tsc); lib_ring_buffer_write_commit_counter(config, buf, chan, oldidx, offsets->old, commit_count, config->cb.subbuffer_header_size(), handle); } /* * lib_ring_buffer_switch_old_end: switch old subbuffer * * Note : offset_old should never be 0 here. It is ok, because we never perform * buffer switch on an empty subbuffer in SWITCH_ACTIVE mode. The caller * increments the offset_old value when doing a SWITCH_FLUSH on an empty * subbuffer. */ static void lib_ring_buffer_switch_old_end(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct switch_offsets *offsets, uint64_t tsc, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long oldidx = subbuf_index(offsets->old - 1, chan); unsigned long commit_count, padding_size, data_size; data_size = subbuf_offset(offsets->old - 1, chan) + 1; padding_size = chan->backend.subbuf_size - data_size; subbuffer_set_data_size(config, &buf->backend, oldidx, data_size, handle); /* * Order all writes to buffer before the commit count update that will * determine that the subbuffer is full. */ cmm_smp_wmb(); v_add(config, padding_size, &shmp_index(handle, buf->commit_hot, oldidx)->cc); commit_count = v_read(config, &shmp_index(handle, buf->commit_hot, oldidx)->cc); lib_ring_buffer_check_deliver(config, buf, chan, offsets->old - 1, commit_count, oldidx, handle, tsc); lib_ring_buffer_write_commit_counter(config, buf, chan, oldidx, offsets->old, commit_count, padding_size, handle); } /* * lib_ring_buffer_switch_new_start: Populate new subbuffer. * * This code can be executed unordered : writers may already have written to the * sub-buffer before this code gets executed, caution. The commit makes sure * that this code is executed before the deliver of this sub-buffer. */ static void lib_ring_buffer_switch_new_start(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct switch_offsets *offsets, uint64_t tsc, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long beginidx = subbuf_index(offsets->begin, chan); unsigned long commit_count; config->cb.buffer_begin(buf, tsc, beginidx, handle); /* * Order all writes to buffer before the commit count update that will * determine that the subbuffer is full. */ cmm_smp_wmb(); v_add(config, config->cb.subbuffer_header_size(), &shmp_index(handle, buf->commit_hot, beginidx)->cc); commit_count = v_read(config, &shmp_index(handle, buf->commit_hot, beginidx)->cc); /* Check if the written buffer has to be delivered */ lib_ring_buffer_check_deliver(config, buf, chan, offsets->begin, commit_count, beginidx, handle, tsc); lib_ring_buffer_write_commit_counter(config, buf, chan, beginidx, offsets->begin, commit_count, config->cb.subbuffer_header_size(), handle); } /* * lib_ring_buffer_switch_new_end: finish switching current subbuffer * * Calls subbuffer_set_data_size() to set the data size of the current * sub-buffer. We do not need to perform check_deliver nor commit here, * since this task will be done by the "commit" of the event for which * we are currently doing the space reservation. */ static void lib_ring_buffer_switch_new_end(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct switch_offsets *offsets, uint64_t tsc, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long endidx, data_size; endidx = subbuf_index(offsets->end - 1, chan); data_size = subbuf_offset(offsets->end - 1, chan) + 1; subbuffer_set_data_size(config, &buf->backend, endidx, data_size, handle); } /* * Returns : * 0 if ok * !0 if execution must be aborted. */ static int lib_ring_buffer_try_switch_slow(enum switch_mode mode, struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct switch_offsets *offsets, uint64_t *tsc, struct lttng_ust_shm_handle *handle) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; unsigned long off, reserve_commit_diff; offsets->begin = v_read(config, &buf->offset); offsets->old = offsets->begin; offsets->switch_old_start = 0; off = subbuf_offset(offsets->begin, chan); *tsc = config->cb.ring_buffer_clock_read(chan); /* * Ensure we flush the header of an empty subbuffer when doing the * finalize (SWITCH_FLUSH). This ensures that we end up knowing the * total data gathering duration even if there were no records saved * after the last buffer switch. * In SWITCH_ACTIVE mode, switch the buffer when it contains events. * SWITCH_ACTIVE only flushes the current subbuffer, dealing with end of * subbuffer header as appropriate. * The next record that reserves space will be responsible for * populating the following subbuffer header. We choose not to populate * the next subbuffer header here because we want to be able to use * SWITCH_ACTIVE for periodical buffer flush, which must * guarantee that all the buffer content (records and header * timestamps) are visible to the reader. This is required for * quiescence guarantees for the fusion merge. */ if (mode != SWITCH_FLUSH && !off) return -1; /* we do not have to switch : buffer is empty */ if (caa_unlikely(off == 0)) { unsigned long sb_index, commit_count; /* * We are performing a SWITCH_FLUSH. At this stage, there are no * concurrent writes into the buffer. * * The client does not save any header information. Don't * switch empty subbuffer on finalize, because it is invalid to * deliver a completely empty subbuffer. */ if (!config->cb.subbuffer_header_size()) return -1; /* Test new buffer integrity */ sb_index = subbuf_index(offsets->begin, chan); commit_count = v_read(config, &shmp_index(handle, buf->commit_cold, sb_index)->cc_sb); reserve_commit_diff = (buf_trunc(offsets->begin, chan) >> chan->backend.num_subbuf_order) - (commit_count & chan->commit_count_mask); if (caa_likely(reserve_commit_diff == 0)) { /* Next subbuffer not being written to. */ if (caa_unlikely(config->mode != RING_BUFFER_OVERWRITE && subbuf_trunc(offsets->begin, chan) - subbuf_trunc((unsigned long) uatomic_read(&buf->consumed), chan) >= chan->backend.buf_size)) { /* * We do not overwrite non consumed buffers * and we are full : don't switch. */ return -1; } else { /* * Next subbuffer not being written to, and we * are either in overwrite mode or the buffer is * not full. It's safe to write in this new * subbuffer. */ } } else { /* * Next subbuffer reserve offset does not match the * commit offset. Don't perform switch in * producer-consumer and overwrite mode. Caused by * either a writer OOPS or too many nested writes over a * reserve/commit pair. */ return -1; } /* * Need to write the subbuffer start header on finalize. */ offsets->switch_old_start = 1; } offsets->begin = subbuf_align(offsets->begin, chan); /* Note: old points to the next subbuf at offset 0 */ offsets->end = offsets->begin; return 0; } /* * Force a sub-buffer switch. This operation is completely reentrant : can be * called while tracing is active with absolutely no lock held. * * Note, however, that as a v_cmpxchg is used for some atomic * operations, this function must be called from the CPU which owns the buffer * for a ACTIVE flush. */ void lib_ring_buffer_switch_slow(struct lttng_ust_lib_ring_buffer *buf, enum switch_mode mode, struct lttng_ust_shm_handle *handle) { struct channel *chan = shmp(handle, buf->backend.chan); const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; struct switch_offsets offsets; unsigned long oldidx; uint64_t tsc; offsets.size = 0; /* * Perform retryable operations. */ do { if (lib_ring_buffer_try_switch_slow(mode, buf, chan, &offsets, &tsc, handle)) return; /* Switch not needed */ } while (v_cmpxchg(config, &buf->offset, offsets.old, offsets.end) != offsets.old); /* * Atomically update last_tsc. This update races against concurrent * atomic updates, but the race will always cause supplementary full TSC * records, never the opposite (missing a full TSC record when it would * be needed). */ save_last_tsc(config, buf, tsc); /* * Push the reader if necessary */ lib_ring_buffer_reserve_push_reader(buf, chan, offsets.old); oldidx = subbuf_index(offsets.old, chan); lib_ring_buffer_clear_noref(config, &buf->backend, oldidx, handle); /* * May need to populate header start on SWITCH_FLUSH. */ if (offsets.switch_old_start) { lib_ring_buffer_switch_old_start(buf, chan, &offsets, tsc, handle); offsets.old += config->cb.subbuffer_header_size(); } /* * Switch old subbuffer. */ lib_ring_buffer_switch_old_end(buf, chan, &offsets, tsc, handle); } /* * Returns : * 0 if ok * -ENOSPC if event size is too large for packet. * -ENOBUFS if there is currently not enough space in buffer for the event. * -EIO if data cannot be written into the buffer for any other reason. */ static int lib_ring_buffer_try_reserve_slow(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct switch_offsets *offsets, struct lttng_ust_lib_ring_buffer_ctx *ctx) { const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; struct lttng_ust_shm_handle *handle = ctx->handle; unsigned long reserve_commit_diff, offset_cmp; retry: offsets->begin = offset_cmp = v_read(config, &buf->offset); offsets->old = offsets->begin; offsets->switch_new_start = 0; offsets->switch_new_end = 0; offsets->switch_old_end = 0; offsets->pre_header_padding = 0; ctx->tsc = config->cb.ring_buffer_clock_read(chan); if ((int64_t) ctx->tsc == -EIO) return -EIO; if (last_tsc_overflow(config, buf, ctx->tsc)) ctx->rflags |= RING_BUFFER_RFLAG_FULL_TSC; if (caa_unlikely(subbuf_offset(offsets->begin, ctx->chan) == 0)) { offsets->switch_new_start = 1; /* For offsets->begin */ } else { offsets->size = config->cb.record_header_size(config, chan, offsets->begin, &offsets->pre_header_padding, ctx); offsets->size += lib_ring_buffer_align(offsets->begin + offsets->size, ctx->largest_align) + ctx->data_size; if (caa_unlikely(subbuf_offset(offsets->begin, chan) + offsets->size > chan->backend.subbuf_size)) { offsets->switch_old_end = 1; /* For offsets->old */ offsets->switch_new_start = 1; /* For offsets->begin */ } } if (caa_unlikely(offsets->switch_new_start)) { unsigned long sb_index, commit_count; /* * We are typically not filling the previous buffer completely. */ if (caa_likely(offsets->switch_old_end)) offsets->begin = subbuf_align(offsets->begin, chan); offsets->begin = offsets->begin + config->cb.subbuffer_header_size(); /* Test new buffer integrity */ sb_index = subbuf_index(offsets->begin, chan); /* * Read buf->offset before buf->commit_cold[sb_index].cc_sb. * lib_ring_buffer_check_deliver() has the matching * memory barriers required around commit_cold cc_sb * updates to ensure reserve and commit counter updates * are not seen reordered when updated by another CPU. */ cmm_smp_rmb(); commit_count = v_read(config, &shmp_index(handle, buf->commit_cold, sb_index)->cc_sb); /* Read buf->commit_cold[sb_index].cc_sb before buf->offset. */ cmm_smp_rmb(); if (caa_unlikely(offset_cmp != v_read(config, &buf->offset))) { /* * The reserve counter have been concurrently updated * while we read the commit counter. This means the * commit counter we read might not match buf->offset * due to concurrent update. We therefore need to retry. */ goto retry; } reserve_commit_diff = (buf_trunc(offsets->begin, chan) >> chan->backend.num_subbuf_order) - (commit_count & chan->commit_count_mask); if (caa_likely(reserve_commit_diff == 0)) { /* Next subbuffer not being written to. */ if (caa_unlikely(config->mode != RING_BUFFER_OVERWRITE && subbuf_trunc(offsets->begin, chan) - subbuf_trunc((unsigned long) uatomic_read(&buf->consumed), chan) >= chan->backend.buf_size)) { unsigned long nr_lost; /* * We do not overwrite non consumed buffers * and we are full : record is lost. */ nr_lost = v_read(config, &buf->records_lost_full); v_inc(config, &buf->records_lost_full); if ((nr_lost & (DBG_PRINT_NR_LOST - 1)) == 0) { DBG("%lu or more records lost in (%s:%d) (buffer full)\n", nr_lost + 1, chan->backend.name, buf->backend.cpu); } return -ENOBUFS; } else { /* * Next subbuffer not being written to, and we * are either in overwrite mode or the buffer is * not full. It's safe to write in this new * subbuffer. */ } } else { unsigned long nr_lost; /* * Next subbuffer reserve offset does not match the * commit offset, and this did not involve update to the * reserve counter. Drop record in producer-consumer and * overwrite mode. Caused by either a writer OOPS or too * many nested writes over a reserve/commit pair. */ nr_lost = v_read(config, &buf->records_lost_wrap); v_inc(config, &buf->records_lost_wrap); if ((nr_lost & (DBG_PRINT_NR_LOST - 1)) == 0) { DBG("%lu or more records lost in (%s:%d) (wrap-around)\n", nr_lost + 1, chan->backend.name, buf->backend.cpu); } return -EIO; } offsets->size = config->cb.record_header_size(config, chan, offsets->begin, &offsets->pre_header_padding, ctx); offsets->size += lib_ring_buffer_align(offsets->begin + offsets->size, ctx->largest_align) + ctx->data_size; if (caa_unlikely(subbuf_offset(offsets->begin, chan) + offsets->size > chan->backend.subbuf_size)) { unsigned long nr_lost; /* * Record too big for subbuffers, report error, don't * complete the sub-buffer switch. */ nr_lost = v_read(config, &buf->records_lost_big); v_inc(config, &buf->records_lost_big); if ((nr_lost & (DBG_PRINT_NR_LOST - 1)) == 0) { DBG("%lu or more records lost in (%s:%d) record size " " of %zu bytes is too large for buffer\n", nr_lost + 1, chan->backend.name, buf->backend.cpu, offsets->size); } return -ENOSPC; } else { /* * We just made a successful buffer switch and the * record fits in the new subbuffer. Let's write. */ } } else { /* * Record fits in the current buffer and we are not on a switch * boundary. It's safe to write. */ } offsets->end = offsets->begin + offsets->size; if (caa_unlikely(subbuf_offset(offsets->end, chan) == 0)) { /* * The offset_end will fall at the very beginning of the next * subbuffer. */ offsets->switch_new_end = 1; /* For offsets->begin */ } return 0; } /** * lib_ring_buffer_reserve_slow - Atomic slot reservation in a buffer. * @ctx: ring buffer context. * * Return : -NOBUFS if not enough space, -ENOSPC if event size too large, * -EIO for other errors, else returns 0. * It will take care of sub-buffer switching. */ int lib_ring_buffer_reserve_slow(struct lttng_ust_lib_ring_buffer_ctx *ctx) { struct channel *chan = ctx->chan; struct lttng_ust_shm_handle *handle = ctx->handle; const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config; struct lttng_ust_lib_ring_buffer *buf; struct switch_offsets offsets; int ret; if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) buf = shmp(handle, chan->backend.buf[ctx->cpu].shmp); else buf = shmp(handle, chan->backend.buf[0].shmp); ctx->buf = buf; offsets.size = 0; do { ret = lib_ring_buffer_try_reserve_slow(buf, chan, &offsets, ctx); if (caa_unlikely(ret)) return ret; } while (caa_unlikely(v_cmpxchg(config, &buf->offset, offsets.old, offsets.end) != offsets.old)); /* * Atomically update last_tsc. This update races against concurrent * atomic updates, but the race will always cause supplementary full TSC * records, never the opposite (missing a full TSC record when it would * be needed). */ save_last_tsc(config, buf, ctx->tsc); /* * Push the reader if necessary */ lib_ring_buffer_reserve_push_reader(buf, chan, offsets.end - 1); /* * Clear noref flag for this subbuffer. */ lib_ring_buffer_clear_noref(config, &buf->backend, subbuf_index(offsets.end - 1, chan), handle); /* * Switch old subbuffer if needed. */ if (caa_unlikely(offsets.switch_old_end)) { lib_ring_buffer_clear_noref(config, &buf->backend, subbuf_index(offsets.old - 1, chan), handle); lib_ring_buffer_switch_old_end(buf, chan, &offsets, ctx->tsc, handle); } /* * Populate new subbuffer. */ if (caa_unlikely(offsets.switch_new_start)) lib_ring_buffer_switch_new_start(buf, chan, &offsets, ctx->tsc, handle); if (caa_unlikely(offsets.switch_new_end)) lib_ring_buffer_switch_new_end(buf, chan, &offsets, ctx->tsc, handle); ctx->slot_size = offsets.size; ctx->pre_offset = offsets.begin; ctx->buf_offset = offsets.begin + offsets.pre_header_padding; return 0; } /* * Force a read (imply TLS fixup for dlopen) of TLS variables. */ void lttng_fixup_ringbuffer_tls(void) { asm volatile ("" : : "m" (URCU_TLS(lib_ring_buffer_nesting))); } void lib_ringbuffer_signal_init(void) { sigset_t mask; int ret; /* * Block signal for entire process, so only our thread processes * it. */ rb_setmask(&mask); ret = pthread_sigmask(SIG_BLOCK, &mask, NULL); if (ret) { errno = ret; PERROR("pthread_sigmask"); } } lttng-ust-2.4.0/libringbuffer/frontend_internal.h0000644000175000017500000004253712302216644017116 00000000000000#ifndef _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H #define _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H /* * libringbuffer/frontend_internal.h * * Ring Buffer Library Synchronization Header (internal helpers). * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * * Author: * Mathieu Desnoyers * * See ring_buffer_frontend.c for more information on wait-free algorithms. * * Dual LGPL v2.1/GPL v2 license. */ #include #include #include #include #include #include "backend_types.h" #include "frontend_types.h" #include "shm.h" /* Buffer offset macros */ /* buf_trunc mask selects only the buffer number. */ static inline unsigned long buf_trunc(unsigned long offset, struct channel *chan) { return offset & ~(chan->backend.buf_size - 1); } /* Select the buffer number value (counter). */ static inline unsigned long buf_trunc_val(unsigned long offset, struct channel *chan) { return buf_trunc(offset, chan) >> chan->backend.buf_size_order; } /* buf_offset mask selects only the offset within the current buffer. */ static inline unsigned long buf_offset(unsigned long offset, struct channel *chan) { return offset & (chan->backend.buf_size - 1); } /* subbuf_offset mask selects the offset within the current subbuffer. */ static inline unsigned long subbuf_offset(unsigned long offset, struct channel *chan) { return offset & (chan->backend.subbuf_size - 1); } /* subbuf_trunc mask selects the subbuffer number. */ static inline unsigned long subbuf_trunc(unsigned long offset, struct channel *chan) { return offset & ~(chan->backend.subbuf_size - 1); } /* subbuf_align aligns the offset to the next subbuffer. */ static inline unsigned long subbuf_align(unsigned long offset, struct channel *chan) { return (offset + chan->backend.subbuf_size) & ~(chan->backend.subbuf_size - 1); } /* subbuf_index returns the index of the current subbuffer within the buffer. */ static inline unsigned long subbuf_index(unsigned long offset, struct channel *chan) { return buf_offset(offset, chan) >> chan->backend.subbuf_size_order; } /* * Last TSC comparison functions. Check if the current TSC overflows tsc_bits * bits from the last TSC read. When overflows are detected, the full 64-bit * timestamp counter should be written in the record header. Reads and writes * last_tsc atomically. */ #if (CAA_BITS_PER_LONG == 32) static inline void save_last_tsc(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc) { if (config->tsc_bits == 0 || config->tsc_bits == 64) return; /* * Ensure the compiler performs this update in a single instruction. */ v_set(config, &buf->last_tsc, (unsigned long)(tsc >> config->tsc_bits)); } static inline int last_tsc_overflow(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc) { unsigned long tsc_shifted; if (config->tsc_bits == 0 || config->tsc_bits == 64) return 0; tsc_shifted = (unsigned long)(tsc >> config->tsc_bits); if (caa_unlikely(tsc_shifted - (unsigned long)v_read(config, &buf->last_tsc))) return 1; else return 0; } #else static inline void save_last_tsc(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc) { if (config->tsc_bits == 0 || config->tsc_bits == 64) return; v_set(config, &buf->last_tsc, (unsigned long)tsc); } static inline int last_tsc_overflow(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc) { if (config->tsc_bits == 0 || config->tsc_bits == 64) return 0; if (caa_unlikely((tsc - v_read(config, &buf->last_tsc)) >> config->tsc_bits)) return 1; else return 0; } #endif extern int lib_ring_buffer_reserve_slow(struct lttng_ust_lib_ring_buffer_ctx *ctx); extern void lib_ring_buffer_switch_slow(struct lttng_ust_lib_ring_buffer *buf, enum switch_mode mode, struct lttng_ust_shm_handle *handle); /* Buffer write helpers */ static inline void lib_ring_buffer_reserve_push_reader(struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, unsigned long offset) { unsigned long consumed_old, consumed_new; do { consumed_old = uatomic_read(&buf->consumed); /* * If buffer is in overwrite mode, push the reader consumed * count if the write position has reached it and we are not * at the first iteration (don't push the reader farther than * the writer). This operation can be done concurrently by many * writers in the same buffer, the writer being at the farthest * write position sub-buffer index in the buffer being the one * which will win this loop. */ if (caa_unlikely(subbuf_trunc(offset, chan) - subbuf_trunc(consumed_old, chan) >= chan->backend.buf_size)) consumed_new = subbuf_align(consumed_old, chan); else return; } while (caa_unlikely(uatomic_cmpxchg(&buf->consumed, consumed_old, consumed_new) != consumed_old)); } static inline void lib_ring_buffer_vmcore_check_deliver(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, unsigned long commit_count, unsigned long idx, struct lttng_ust_shm_handle *handle) { if (config->oops == RING_BUFFER_OOPS_CONSISTENCY) v_set(config, &shmp_index(handle, buf->commit_hot, idx)->seq, commit_count); } static inline int lib_ring_buffer_poll_deliver(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct lttng_ust_shm_handle *handle) { unsigned long consumed_old, consumed_idx, commit_count, write_offset; consumed_old = uatomic_read(&buf->consumed); consumed_idx = subbuf_index(consumed_old, chan); commit_count = v_read(config, &shmp_index(handle, buf->commit_cold, consumed_idx)->cc_sb); /* * No memory barrier here, since we are only interested * in a statistically correct polling result. The next poll will * get the data is we are racing. The mb() that ensures correct * memory order is in get_subbuf. */ write_offset = v_read(config, &buf->offset); /* * Check that the subbuffer we are trying to consume has been * already fully committed. */ if (((commit_count - chan->backend.subbuf_size) & chan->commit_count_mask) - (buf_trunc(consumed_old, chan) >> chan->backend.num_subbuf_order) != 0) return 0; /* * Check that we are not about to read the same subbuffer in * which the writer head is. */ if (subbuf_trunc(write_offset, chan) - subbuf_trunc(consumed_old, chan) == 0) return 0; return 1; } static inline int lib_ring_buffer_pending_data(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, struct channel *chan) { return !!subbuf_offset(v_read(config, &buf->offset), chan); } static inline unsigned long lib_ring_buffer_get_data_size(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, unsigned long idx, struct lttng_ust_shm_handle *handle) { return subbuffer_get_data_size(config, &buf->backend, idx, handle); } /* * Check if all space reservation in a buffer have been committed. This helps * knowing if an execution context is nested (for per-cpu buffers only). * This is a very specific ftrace use-case, so we keep this as "internal" API. */ static inline int lib_ring_buffer_reserve_committed(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, struct lttng_ust_shm_handle *handle) { unsigned long offset, idx, commit_count; CHAN_WARN_ON(chan, config->alloc != RING_BUFFER_ALLOC_PER_CPU); CHAN_WARN_ON(chan, config->sync != RING_BUFFER_SYNC_PER_CPU); /* * Read offset and commit count in a loop so they are both read * atomically wrt interrupts. By deal with interrupt concurrency by * restarting both reads if the offset has been pushed. Note that given * we only have to deal with interrupt concurrency here, an interrupt * modifying the commit count will also modify "offset", so it is safe * to only check for offset modifications. */ do { offset = v_read(config, &buf->offset); idx = subbuf_index(offset, chan); commit_count = v_read(config, &shmp_index(handle, buf->commit_hot, idx)->cc); } while (offset != v_read(config, &buf->offset)); return ((buf_trunc(offset, chan) >> chan->backend.num_subbuf_order) - (commit_count & chan->commit_count_mask) == 0); } static inline void lib_ring_buffer_wakeup(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { int wakeup_fd = shm_get_wakeup_fd(handle, &buf->self._ref); sigset_t sigpipe_set, pending_set, old_set; int ret, sigpipe_was_pending = 0; if (wakeup_fd < 0) return; /* * Wake-up the other end by writing a null byte in the pipe * (non-blocking). Important note: Because writing into the * pipe is non-blocking (and therefore we allow dropping wakeup * data, as long as there is wakeup data present in the pipe * buffer to wake up the consumer), the consumer should perform * the following sequence for waiting: * 1) empty the pipe (reads). * 2) check if there is data in the buffer. * 3) wait on the pipe (poll). * * Discard the SIGPIPE from write(), not disturbing any SIGPIPE * that might be already pending. If a bogus SIGPIPE is sent to * the entire process concurrently by a malicious user, it may * be simply discarded. */ ret = sigemptyset(&pending_set); assert(!ret); /* * sigpending returns the mask of signals that are _both_ * blocked for the thread _and_ pending for either the thread or * the entire process. */ ret = sigpending(&pending_set); assert(!ret); sigpipe_was_pending = sigismember(&pending_set, SIGPIPE); /* * If sigpipe was pending, it means it was already blocked, so * no need to block it. */ if (!sigpipe_was_pending) { ret = sigemptyset(&sigpipe_set); assert(!ret); ret = sigaddset(&sigpipe_set, SIGPIPE); assert(!ret); ret = pthread_sigmask(SIG_BLOCK, &sigpipe_set, &old_set); assert(!ret); } do { ret = write(wakeup_fd, "", 1); } while (ret == -1L && errno == EINTR); if (ret == -1L && errno == EPIPE && !sigpipe_was_pending) { struct timespec timeout = { 0, 0 }; do { ret = sigtimedwait(&sigpipe_set, NULL, &timeout); } while (ret == -1L && errno == EINTR); } if (!sigpipe_was_pending) { ret = pthread_sigmask(SIG_SETMASK, &old_set, NULL); assert(!ret); } } /* * Receive end of subbuffer TSC as parameter. It has been read in the * space reservation loop of either reserve or switch, which ensures it * progresses monotonically with event records in the buffer. Therefore, * it ensures that the end timestamp of a subbuffer is <= begin * timestamp of the following subbuffers. */ static inline void lib_ring_buffer_check_deliver(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, unsigned long offset, unsigned long commit_count, unsigned long idx, struct lttng_ust_shm_handle *handle, uint64_t tsc) { unsigned long old_commit_count = commit_count - chan->backend.subbuf_size; /* Check if all commits have been done */ if (caa_unlikely((buf_trunc(offset, chan) >> chan->backend.num_subbuf_order) - (old_commit_count & chan->commit_count_mask) == 0)) { /* * If we succeeded at updating cc_sb below, we are the subbuffer * writer delivering the subbuffer. Deals with concurrent * updates of the "cc" value without adding a add_return atomic * operation to the fast path. * * We are doing the delivery in two steps: * - First, we cmpxchg() cc_sb to the new value * old_commit_count + 1. This ensures that we are the only * subbuffer user successfully filling the subbuffer, but we * do _not_ set the cc_sb value to "commit_count" yet. * Therefore, other writers that would wrap around the ring * buffer and try to start writing to our subbuffer would * have to drop records, because it would appear as * non-filled. * We therefore have exclusive access to the subbuffer control * structures. This mutual exclusion with other writers is * crucially important to perform record overruns count in * flight recorder mode locklessly. * - When we are ready to release the subbuffer (either for * reading or for overrun by other writers), we simply set the * cc_sb value to "commit_count" and perform delivery. * * The subbuffer size is least 2 bytes (minimum size: 1 page). * This guarantees that old_commit_count + 1 != commit_count. */ /* * Order prior updates to reserve count prior to the * commit_cold cc_sb update. */ cmm_smp_wmb(); if (caa_likely(v_cmpxchg(config, &shmp_index(handle, buf->commit_cold, idx)->cc_sb, old_commit_count, old_commit_count + 1) == old_commit_count)) { /* * Start of exclusive subbuffer access. We are * guaranteed to be the last writer in this subbuffer * and any other writer trying to access this subbuffer * in this state is required to drop records. */ v_add(config, subbuffer_get_records_count(config, &buf->backend, idx, handle), &buf->records_count); v_add(config, subbuffer_count_records_overrun(config, &buf->backend, idx, handle), &buf->records_overrun); config->cb.buffer_end(buf, tsc, idx, lib_ring_buffer_get_data_size(config, buf, idx, handle), handle); /* * Set noref flag and offset for this subbuffer id. * Contains a memory barrier that ensures counter stores * are ordered before set noref and offset. */ lib_ring_buffer_set_noref_offset(config, &buf->backend, idx, buf_trunc_val(offset, chan), handle); /* * Order set_noref and record counter updates before the * end of subbuffer exclusive access. Orders with * respect to writers coming into the subbuffer after * wrap around, and also order wrt concurrent readers. */ cmm_smp_mb(); /* End of exclusive subbuffer access */ v_set(config, &shmp_index(handle, buf->commit_cold, idx)->cc_sb, commit_count); /* * Order later updates to reserve count after * the commit cold cc_sb update. */ cmm_smp_wmb(); lib_ring_buffer_vmcore_check_deliver(config, buf, commit_count, idx, handle); /* * RING_BUFFER_WAKEUP_BY_WRITER wakeup is not lock-free. */ if (config->wakeup == RING_BUFFER_WAKEUP_BY_WRITER && uatomic_read(&buf->active_readers) && lib_ring_buffer_poll_deliver(config, buf, chan, handle)) { lib_ring_buffer_wakeup(buf, handle); } } } } /* * lib_ring_buffer_write_commit_counter * * For flight recording. must be called after commit. * This function increments the subbuffer's commit_seq counter each time the * commit count reaches back the reserve offset (modulo subbuffer size). It is * useful for crash dump. */ static inline void lib_ring_buffer_write_commit_counter(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, struct channel *chan, unsigned long idx, unsigned long buf_offset, unsigned long commit_count, size_t slot_size, struct lttng_ust_shm_handle *handle) { unsigned long offset, commit_seq_old; if (config->oops != RING_BUFFER_OOPS_CONSISTENCY) return; offset = buf_offset + slot_size; /* * subbuf_offset includes commit_count_mask. We can simply * compare the offsets within the subbuffer without caring about * buffer full/empty mismatch because offset is never zero here * (subbuffer header and record headers have non-zero length). */ if (caa_unlikely(subbuf_offset(offset - commit_count, chan))) return; commit_seq_old = v_read(config, &shmp_index(handle, buf->commit_hot, idx)->seq); while ((long) (commit_seq_old - commit_count) < 0) commit_seq_old = v_cmpxchg(config, &shmp_index(handle, buf->commit_hot, idx)->seq, commit_seq_old, commit_count); } extern int lib_ring_buffer_create(struct lttng_ust_lib_ring_buffer *buf, struct channel_backend *chanb, int cpu, struct lttng_ust_shm_handle *handle, struct shm_object *shmobj); extern void lib_ring_buffer_free(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle); /* Keep track of trap nesting inside ring buffer code */ extern DECLARE_URCU_TLS(unsigned int, lib_ring_buffer_nesting); #endif /* _LTTNG_RING_BUFFER_FRONTEND_INTERNAL_H */ lttng-ust-2.4.0/libringbuffer/Makefile.am0000644000175000017500000000106312123372601015250 00000000000000AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include AM_CFLAGS = -fno-strict-aliasing noinst_LTLIBRARIES = libringbuffer.la libringbuffer_la_SOURCES = \ smp.h smp.c getcpu.h \ shm.c shm.h shm_types.h shm_internal.h \ ring_buffer_backend.c \ ring_buffer_frontend.c \ api.h \ backend.h backend_internal.h backend_types.h \ frontend_api.h frontend.h frontend_internal.h frontend_types.h \ nohz.h vatomic.h tlsfixup.h libringbuffer_la_LIBADD = \ -lpthread \ -lrt libringbuffer_la_CFLAGS = -DUST_COMPONENT="libringbuffer" -fno-strict-aliasing lttng-ust-2.4.0/libringbuffer/frontend_api.h0000644000175000017500000002763412275157353016066 00000000000000#ifndef _LTTNG_RING_BUFFER_FRONTEND_API_H #define _LTTNG_RING_BUFFER_FRONTEND_API_H /* * libringbuffer/frontend_api.h * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Ring Buffer Library Synchronization Header (buffer write API). * * Author: * Mathieu Desnoyers * * See ring_buffer_frontend.c for more information on wait-free * algorithms. * See frontend.h for channel allocation and read-side API. */ #include "frontend.h" #include #include /** * lib_ring_buffer_get_cpu - Precedes ring buffer reserve/commit. * * Grabs RCU read-side lock and keeps a ring buffer nesting count as * supplementary safety net to ensure tracer client code will never * trigger an endless recursion. Returns the processor ID on success, * -EPERM on failure (nesting count too high). * * asm volatile and "memory" clobber prevent the compiler from moving * instructions out of the ring buffer nesting count. This is required to ensure * that probe side-effects which can cause recursion (e.g. unforeseen traps, * divisions by 0, ...) are triggered within the incremented nesting count * section. */ static inline int lib_ring_buffer_get_cpu(const struct lttng_ust_lib_ring_buffer_config *config) { int cpu, nesting; rcu_read_lock(); cpu = lttng_ust_get_cpu(); nesting = ++URCU_TLS(lib_ring_buffer_nesting); cmm_barrier(); if (caa_unlikely(nesting > 4)) { WARN_ON_ONCE(1); URCU_TLS(lib_ring_buffer_nesting)--; rcu_read_unlock(); return -EPERM; } else return cpu; } /** * lib_ring_buffer_put_cpu - Follows ring buffer reserve/commit. */ static inline void lib_ring_buffer_put_cpu(const struct lttng_ust_lib_ring_buffer_config *config) { cmm_barrier(); URCU_TLS(lib_ring_buffer_nesting)--; /* TLS */ rcu_read_unlock(); } /* * lib_ring_buffer_try_reserve is called by lib_ring_buffer_reserve(). It is not * part of the API per se. * * returns 0 if reserve ok, or 1 if the slow path must be taken. */ static inline int lib_ring_buffer_try_reserve(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, unsigned long *o_begin, unsigned long *o_end, unsigned long *o_old, size_t *before_hdr_pad) { struct channel *chan = ctx->chan; struct lttng_ust_lib_ring_buffer *buf = ctx->buf; *o_begin = v_read(config, &buf->offset); *o_old = *o_begin; ctx->tsc = lib_ring_buffer_clock_read(chan); if ((int64_t) ctx->tsc == -EIO) return 1; /* * Prefetch cacheline for read because we have to read the previous * commit counter to increment it and commit seq value to compare it to * the commit counter. */ //prefetch(&buf->commit_hot[subbuf_index(*o_begin, chan)]); if (last_tsc_overflow(config, buf, ctx->tsc)) ctx->rflags |= RING_BUFFER_RFLAG_FULL_TSC; if (caa_unlikely(subbuf_offset(*o_begin, chan) == 0)) return 1; ctx->slot_size = record_header_size(config, chan, *o_begin, before_hdr_pad, ctx); ctx->slot_size += lib_ring_buffer_align(*o_begin + ctx->slot_size, ctx->largest_align) + ctx->data_size; if (caa_unlikely((subbuf_offset(*o_begin, chan) + ctx->slot_size) > chan->backend.subbuf_size)) return 1; /* * Record fits in the current buffer and we are not on a switch * boundary. It's safe to write. */ *o_end = *o_begin + ctx->slot_size; if (caa_unlikely((subbuf_offset(*o_end, chan)) == 0)) /* * The offset_end will fall at the very beginning of the next * subbuffer. */ return 1; return 0; } /** * lib_ring_buffer_reserve - Reserve space in a ring buffer. * @config: ring buffer instance configuration. * @ctx: ring buffer context. (input and output) Must be already initialized. * * Atomic wait-free slot reservation. The reserved space starts at the context * "pre_offset". Its length is "slot_size". The associated time-stamp is "tsc". * * Return : * 0 on success. * -EAGAIN if channel is disabled. * -ENOSPC if event size is too large for packet. * -ENOBUFS if there is currently not enough space in buffer for the event. * -EIO if data cannot be written into the buffer for any other reason. */ static inline int lib_ring_buffer_reserve(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx) { struct channel *chan = ctx->chan; struct lttng_ust_shm_handle *handle = ctx->handle; struct lttng_ust_lib_ring_buffer *buf; unsigned long o_begin, o_end, o_old; size_t before_hdr_pad = 0; if (uatomic_read(&chan->record_disabled)) return -EAGAIN; if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) buf = shmp(handle, chan->backend.buf[ctx->cpu].shmp); else buf = shmp(handle, chan->backend.buf[0].shmp); if (uatomic_read(&buf->record_disabled)) return -EAGAIN; ctx->buf = buf; /* * Perform retryable operations. */ if (caa_unlikely(lib_ring_buffer_try_reserve(config, ctx, &o_begin, &o_end, &o_old, &before_hdr_pad))) goto slow_path; if (caa_unlikely(v_cmpxchg(config, &ctx->buf->offset, o_old, o_end) != o_old)) goto slow_path; /* * Atomically update last_tsc. This update races against concurrent * atomic updates, but the race will always cause supplementary full TSC * record headers, never the opposite (missing a full TSC record header * when it would be needed). */ save_last_tsc(config, ctx->buf, ctx->tsc); /* * Push the reader if necessary */ lib_ring_buffer_reserve_push_reader(ctx->buf, chan, o_end - 1); /* * Clear noref flag for this subbuffer. */ lib_ring_buffer_clear_noref(config, &ctx->buf->backend, subbuf_index(o_end - 1, chan), handle); ctx->pre_offset = o_begin; ctx->buf_offset = o_begin + before_hdr_pad; return 0; slow_path: return lib_ring_buffer_reserve_slow(ctx); } /** * lib_ring_buffer_switch - Perform a sub-buffer switch for a per-cpu buffer. * @config: ring buffer instance configuration. * @buf: buffer * @mode: buffer switch mode (SWITCH_ACTIVE or SWITCH_FLUSH) * * This operation is completely reentrant : can be called while tracing is * active with absolutely no lock held. * * Note, however, that as a v_cmpxchg is used for some atomic operations and * requires to be executed locally for per-CPU buffers, this function must be * called from the CPU which owns the buffer for a ACTIVE flush, with preemption * disabled, for RING_BUFFER_SYNC_PER_CPU configuration. */ static inline void lib_ring_buffer_switch(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, enum switch_mode mode, struct lttng_ust_shm_handle *handle) { lib_ring_buffer_switch_slow(buf, mode, handle); } /* See ring_buffer_frontend_api.h for lib_ring_buffer_reserve(). */ /** * lib_ring_buffer_commit - Commit an record. * @config: ring buffer instance configuration. * @ctx: ring buffer context. (input arguments only) * * Atomic unordered slot commit. Increments the commit count in the * specified sub-buffer, and delivers it if necessary. */ static inline void lib_ring_buffer_commit(const struct lttng_ust_lib_ring_buffer_config *config, const struct lttng_ust_lib_ring_buffer_ctx *ctx) { struct channel *chan = ctx->chan; struct lttng_ust_shm_handle *handle = ctx->handle; struct lttng_ust_lib_ring_buffer *buf = ctx->buf; unsigned long offset_end = ctx->buf_offset; unsigned long endidx = subbuf_index(offset_end - 1, chan); unsigned long commit_count; /* * Must count record before incrementing the commit count. */ subbuffer_count_record(config, &buf->backend, endidx, handle); /* * Order all writes to buffer before the commit count update that will * determine that the subbuffer is full. */ cmm_smp_wmb(); v_add(config, ctx->slot_size, &shmp_index(handle, buf->commit_hot, endidx)->cc); /* * commit count read can race with concurrent OOO commit count updates. * This is only needed for lib_ring_buffer_check_deliver (for * non-polling delivery only) and for * lib_ring_buffer_write_commit_counter. The race can only cause the * counter to be read with the same value more than once, which could * cause : * - Multiple delivery for the same sub-buffer (which is handled * gracefully by the reader code) if the value is for a full * sub-buffer. It's important that we can never miss a sub-buffer * delivery. Re-reading the value after the v_add ensures this. * - Reading a commit_count with a higher value that what was actually * added to it for the lib_ring_buffer_write_commit_counter call * (again caused by a concurrent committer). It does not matter, * because this function is interested in the fact that the commit * count reaches back the reserve offset for a specific sub-buffer, * which is completely independent of the order. */ commit_count = v_read(config, &shmp_index(handle, buf->commit_hot, endidx)->cc); lib_ring_buffer_check_deliver(config, buf, chan, offset_end - 1, commit_count, endidx, handle, ctx->tsc); /* * Update used size at each commit. It's needed only for extracting * ring_buffer buffers from vmcore, after crash. */ lib_ring_buffer_write_commit_counter(config, buf, chan, endidx, ctx->buf_offset, commit_count, ctx->slot_size, handle); } /** * lib_ring_buffer_try_discard_reserve - Try discarding a record. * @config: ring buffer instance configuration. * @ctx: ring buffer context. (input arguments only) * * Only succeeds if no other record has been written after the record to * discard. If discard fails, the record must be committed to the buffer. * * Returns 0 upon success, -EPERM if the record cannot be discarded. */ static inline int lib_ring_buffer_try_discard_reserve(const struct lttng_ust_lib_ring_buffer_config *config, const struct lttng_ust_lib_ring_buffer_ctx *ctx) { struct lttng_ust_lib_ring_buffer *buf = ctx->buf; unsigned long end_offset = ctx->pre_offset + ctx->slot_size; /* * We need to ensure that if the cmpxchg succeeds and discards the * record, the next record will record a full TSC, because it cannot * rely on the last_tsc associated with the discarded record to detect * overflows. The only way to ensure this is to set the last_tsc to 0 * (assuming no 64-bit TSC overflow), which forces to write a 64-bit * timestamp in the next record. * * Note: if discard fails, we must leave the TSC in the record header. * It is needed to keep track of TSC overflows for the following * records. */ save_last_tsc(config, buf, 0ULL); if (caa_likely(v_cmpxchg(config, &buf->offset, end_offset, ctx->pre_offset) != end_offset)) return -EPERM; else return 0; } static inline void channel_record_disable(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan) { uatomic_inc(&chan->record_disabled); } static inline void channel_record_enable(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan) { uatomic_dec(&chan->record_disabled); } static inline void lib_ring_buffer_record_disable(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { uatomic_inc(&buf->record_disabled); } static inline void lib_ring_buffer_record_enable(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { uatomic_dec(&buf->record_disabled); } #endif /* _LTTNG_RING_BUFFER_FRONTEND_API_H */ lttng-ust-2.4.0/libringbuffer/getcpu.h0000644000175000017500000000446112167611342014667 00000000000000#ifndef _LTTNG_GETCPU_H #define _LTTNG_GETCPU_H /* * Copyright (c) 2011 - Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #ifdef LTTNG_UST_DEBUG_VALGRIND /* * Fallback on cpu 0 if liblttng-ust is build with Valgrind support. * get_cpu() returns the current CPU number. It may change due to * migration, so it is only statistically accurate. */ static inline int lttng_ust_get_cpu(void) { return 0; } #else /* * sched_getcpu. */ #ifdef __linux__ /* old uClibc versions didn't have sched_getcpu */ #if defined(__UCLIBC__) && __UCLIBC_MAJOR__ == 0 && \ (__UCLIBC_MINOR__ < 9 || \ (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ <= 32)) #include #define __getcpu(cpu, node, cache) syscall(__NR_getcpu, cpu, node, cache) /* * If getcpu is not implemented in the kernel, use cpu 0 as fallback. */ static inline int lttng_ust_get_cpu(void) { int cpu, ret; ret = __getcpu(&cpu, NULL, NULL); if (caa_unlikely(ret < 0)) return 0; return c; } #else /* __UCLIBC__ */ #include /* * If getcpu is not implemented in the kernel, use cpu 0 as fallback. */ static inline int lttng_ust_get_cpu(void) { int cpu; cpu = sched_getcpu(); if (caa_unlikely(cpu < 0)) return 0; return cpu; } #endif /* __UCLIBC__ */ #elif (defined(__FreeBSD__) || defined(__CYGWIN__)) /* * FreeBSD and Cygwin do not allow query of CPU ID. Always use CPU * number 0, with the assocated performance degradation on SMP. */ static inline int lttng_ust_get_cpu(void) { return 0; } #else #error "Please add support for your OS into liblttng-ust/compat.h." #endif #endif #endif /* _LTTNG_GETCPU_H */ lttng-ust-2.4.0/libringbuffer/shm.h0000644000175000017500000001424212275157353014174 00000000000000#ifndef _LIBRINGBUFFER_SHM_H #define _LIBRINGBUFFER_SHM_H /* * libringbuffer/shm.h * * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include "shm_types.h" /* channel_handle_create - for UST. */ extern struct lttng_ust_shm_handle *channel_handle_create(void *data, uint64_t memory_map_size, int wakeup_fd); /* channel_handle_add_stream - for UST. */ extern int channel_handle_add_stream(struct lttng_ust_shm_handle *handle, int shm_fd, int wakeup_fd, uint32_t stream_nr, uint64_t memory_map_size); unsigned int channel_handle_get_nr_streams(struct lttng_ust_shm_handle *handle); extern void channel_destroy(struct channel *chan, struct lttng_ust_shm_handle *handle, int consumer); /* * Pointer dereferencing. We don't trust the shm_ref, so we validate * both the index and offset with known boundaries. * * "shmp" and "shmp_index" guarantee that it's safe to use the pointer * target type, even in the occurrence of shm_ref modification by an * untrusted process having write access to the shm_ref. We return a * NULL pointer if the ranges are invalid. */ static inline char *_shmp_offset(struct shm_object_table *table, struct shm_ref *ref, size_t idx, size_t elem_size) { struct shm_object *obj; size_t objindex, ref_offset; objindex = (size_t) ref->index; if (caa_unlikely(objindex >= table->allocated_len)) return NULL; obj = &table->objects[objindex]; ref_offset = (size_t) ref->offset; ref_offset += idx * elem_size; /* Check if part of the element returned would exceed the limits. */ if (caa_unlikely(ref_offset + elem_size > obj->memory_map_size)) return NULL; return &obj->memory_map[ref_offset]; } #define shmp_index(handle, ref, index) \ ({ \ __typeof__((ref)._type) ____ptr_ret; \ ____ptr_ret = (__typeof__(____ptr_ret)) _shmp_offset((handle)->table, &(ref)._ref, index, sizeof(*____ptr_ret)); \ ____ptr_ret; \ }) #define shmp(handle, ref) shmp_index(handle, ref, 0) static inline void _set_shmp(struct shm_ref *ref, struct shm_ref src) { *ref = src; } #define set_shmp(ref, src) _set_shmp(&(ref)._ref, src) struct shm_object_table *shm_object_table_create(size_t max_nb_obj); struct shm_object *shm_object_table_alloc(struct shm_object_table *table, size_t memory_map_size, enum shm_object_type type); struct shm_object *shm_object_table_append_shm(struct shm_object_table *table, int shm_fd, int wakeup_fd, uint32_t stream_nr, size_t memory_map_size); /* mem ownership is passed to shm_object_table_append_mem(). */ struct shm_object *shm_object_table_append_mem(struct shm_object_table *table, void *mem, size_t memory_map_size, int wakeup_fd); void shm_object_table_destroy(struct shm_object_table *table); /* * zalloc_shm - allocate memory within a shm object. * * Shared memory is already zeroed by shmget. * *NOT* multithread-safe (should be protected by mutex). * Returns a -1, -1 tuple on error. */ struct shm_ref zalloc_shm(struct shm_object *obj, size_t len); void align_shm(struct shm_object *obj, size_t align); static inline int shm_get_wait_fd(struct lttng_ust_shm_handle *handle, struct shm_ref *ref) { struct shm_object_table *table = handle->table; struct shm_object *obj; size_t index; index = (size_t) ref->index; if (caa_unlikely(index >= table->allocated_len)) return -EPERM; obj = &table->objects[index]; return obj->wait_fd[0]; } static inline int shm_get_wakeup_fd(struct lttng_ust_shm_handle *handle, struct shm_ref *ref) { struct shm_object_table *table = handle->table; struct shm_object *obj; size_t index; index = (size_t) ref->index; if (caa_unlikely(index >= table->allocated_len)) return -EPERM; obj = &table->objects[index]; return obj->wait_fd[1]; } static inline int shm_close_wait_fd(struct lttng_ust_shm_handle *handle, struct shm_ref *ref) { struct shm_object_table *table = handle->table; struct shm_object *obj; int wait_fd; size_t index; int ret; index = (size_t) ref->index; if (caa_unlikely(index >= table->allocated_len)) return -EPERM; obj = &table->objects[index]; wait_fd = obj->wait_fd[0]; if (wait_fd < 0) return -ENOENT; obj->wait_fd[0] = -1; ret = close(wait_fd); if (ret) { ret = -errno; return ret; } return 0; } static inline int shm_close_wakeup_fd(struct lttng_ust_shm_handle *handle, struct shm_ref *ref) { struct shm_object_table *table = handle->table; struct shm_object *obj; int wakeup_fd; size_t index; int ret; index = (size_t) ref->index; if (caa_unlikely(index >= table->allocated_len)) return -EPERM; obj = &table->objects[index]; wakeup_fd = obj->wait_fd[1]; if (wakeup_fd < 0) return -ENOENT; obj->wait_fd[1] = -1; ret = close(wakeup_fd); if (ret) { ret = -errno; return ret; } return 0; } static inline int shm_get_shm_fd(struct lttng_ust_shm_handle *handle, struct shm_ref *ref) { struct shm_object_table *table = handle->table; struct shm_object *obj; size_t index; index = (size_t) ref->index; if (caa_unlikely(index >= table->allocated_len)) return -EPERM; obj = &table->objects[index]; return obj->shm_fd; } static inline int shm_get_shm_size(struct lttng_ust_shm_handle *handle, struct shm_ref *ref, uint64_t *size) { struct shm_object_table *table = handle->table; struct shm_object *obj; size_t index; index = (size_t) ref->index; if (caa_unlikely(index >= table->allocated_len)) return -EPERM; obj = &table->objects[index]; *size = obj->memory_map_size; return 0; } #endif /* _LIBRINGBUFFER_SHM_H */ lttng-ust-2.4.0/libringbuffer/smp.c0000644000175000017500000000260112123372601014156 00000000000000/* * libringbuffer/smp.c * * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include #include "usterr.h" #include #include "smp.h" int __num_possible_cpus; void _get_num_possible_cpus(void) { int result; /* On Linux, when some processors are offline * _SC_NPROCESSORS_CONF counts the offline * processors, whereas _SC_NPROCESSORS_ONLN * does not. If we used _SC_NPROCESSORS_ONLN, * getcpu() could return a value greater than * this sysconf, in which case the arrays * indexed by processor would overflow. */ result = sysconf(_SC_NPROCESSORS_CONF); if (result == -1) return; __num_possible_cpus = result; } lttng-ust-2.4.0/libringbuffer/Makefile.in0000644000175000017500000005346012304153125015270 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in 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 # 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See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "backend.h" #include "frontend.h" #include /* * ring_buffer_frontend_api.h contains static inline functions that depend on * client static inlines. Hence the inclusion of this "api" header only * within the client. */ #include "frontend_api.h" #endif /* _LTTNG_RING_BUFFER_API_H */ lttng-ust-2.4.0/libringbuffer/backend_types.h0000644000175000017500000000732312123372601016205 00000000000000#ifndef _LTTNG_RING_BUFFER_BACKEND_TYPES_H #define _LTTNG_RING_BUFFER_BACKEND_TYPES_H /* * linux/ringbuffer/backend_types.h * * Ring buffer backend (types). * * Copyright (C) 2008-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include "shm_internal.h" #include "vatomic.h" #define RB_BACKEND_PAGES_PADDING 16 struct lttng_ust_lib_ring_buffer_backend_pages { unsigned long mmap_offset; /* offset of the subbuffer in mmap */ union v_atomic records_commit; /* current records committed count */ union v_atomic records_unread; /* records to read */ unsigned long data_size; /* Amount of data to read from subbuf */ DECLARE_SHMP(char, p); /* Backing memory map */ char padding[RB_BACKEND_PAGES_PADDING]; }; struct lttng_ust_lib_ring_buffer_backend_subbuffer { /* Identifier for subbuf backend pages. Exchanged atomically. */ unsigned long id; /* backend subbuffer identifier */ }; /* * Forward declaration of frontend-specific channel and ring_buffer. */ struct channel; struct lttng_ust_lib_ring_buffer; struct lttng_ust_lib_ring_buffer_backend_pages_shmp { DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_pages, shmp); }; #define RB_BACKEND_RING_BUFFER_PADDING 64 struct lttng_ust_lib_ring_buffer_backend { /* Array of ring_buffer_backend_subbuffer for writer */ DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_subbuffer, buf_wsb); /* ring_buffer_backend_subbuffer for reader */ struct lttng_ust_lib_ring_buffer_backend_subbuffer buf_rsb; /* * Pointer array of backend pages, for whole buffer. * Indexed by ring_buffer_backend_subbuffer identifier (id) index. */ DECLARE_SHMP(struct lttng_ust_lib_ring_buffer_backend_pages_shmp, array); DECLARE_SHMP(char, memory_map); /* memory mapping */ DECLARE_SHMP(struct channel, chan); /* Associated channel */ int cpu; /* This buffer's cpu. -1 if global. */ union v_atomic records_read; /* Number of records read */ unsigned int allocated:1; /* is buffer allocated ? */ char padding[RB_BACKEND_RING_BUFFER_PADDING]; }; struct lttng_ust_lib_ring_buffer_shmp { DECLARE_SHMP(struct lttng_ust_lib_ring_buffer, shmp); /* Channel per-cpu buffers */ }; #define RB_BACKEND_CHANNEL_PADDING 64 struct channel_backend { unsigned long buf_size; /* Size of the buffer */ unsigned long subbuf_size; /* Sub-buffer size */ unsigned int subbuf_size_order; /* Order of sub-buffer size */ unsigned int num_subbuf_order; /* * Order of number of sub-buffers/buffer * for writer. */ unsigned int buf_size_order; /* Order of buffer size */ unsigned int extra_reader_sb:1; /* has extra reader subbuffer ? */ unsigned long num_subbuf; /* Number of sub-buffers for writer */ uint64_t start_tsc; /* Channel creation TSC value */ DECLARE_SHMP(void *, priv_data);/* Client-specific information */ struct lttng_ust_lib_ring_buffer_config config; /* Ring buffer configuration */ char name[NAME_MAX]; /* Channel name */ char padding[RB_BACKEND_CHANNEL_PADDING]; struct lttng_ust_lib_ring_buffer_shmp buf[]; }; #endif /* _LTTNG_RING_BUFFER_BACKEND_TYPES_H */ lttng-ust-2.4.0/libringbuffer/tlsfixup.h0000644000175000017500000000174412123372601015251 00000000000000#ifndef _LTTNG_UST_LIB_RINGBUFFER_TLS_FIXUP_H #define _LTTNG_UST_LIB_RINGBUFFER_TLS_FIXUP_H /* * libringbuffer/tlsfixup.h * * Copyright (C) 2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ void lttng_fixup_ringbuffer_tls(void); #endif /* _LTTNG_UST_LIB_RINGBUFFER_TLS_FIXUP_H */ lttng-ust-2.4.0/libringbuffer/smp.h0000644000175000017500000000252212123372601014165 00000000000000#ifndef _LIBRINGBUFFER_SMP_H #define _LIBRINGBUFFER_SMP_H /* * libringbuffer/smp.h * * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "getcpu.h" /* * 4kB of per-cpu data available. Enough to hold the control structures, * but not ring buffers. */ #define PER_CPU_MEM_SIZE 4096 extern int __num_possible_cpus; extern void _get_num_possible_cpus(void); static inline int num_possible_cpus(void) { if (!__num_possible_cpus) _get_num_possible_cpus(); return __num_possible_cpus; } #define for_each_possible_cpu(cpu) \ for ((cpu) = 0; (cpu) < num_possible_cpus(); (cpu)++) #endif /* _LIBRINGBUFFER_SMP_H */ lttng-ust-2.4.0/libringbuffer/frontend_types.h0000644000175000017500000001322312302216644016434 00000000000000#ifndef _LTTNG_RING_BUFFER_FRONTEND_TYPES_H #define _LTTNG_RING_BUFFER_FRONTEND_TYPES_H /* * libringbuffer/frontend_types.h * * Ring Buffer Library Synchronization Header (types). * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Author: * Mathieu Desnoyers * * See ring_buffer_frontend.c for more information on wait-free algorithms. */ #include #include /* for timer_t */ #include #include #include #include #include "backend_types.h" #include "shm_internal.h" #include "shm_types.h" #include "vatomic.h" /* * A switch is done during tracing or as a final flush after tracing (so it * won't write in the new sub-buffer). */ enum switch_mode { SWITCH_ACTIVE, SWITCH_FLUSH }; /* channel: collection of per-cpu ring buffers. */ #define RB_CHANNEL_PADDING 32 struct channel { int record_disabled; unsigned long commit_count_mask; /* * Commit count mask, removing * the MSBs corresponding to * bits used to represent the * subbuffer index. */ unsigned long switch_timer_interval; /* Buffer flush (us) */ timer_t switch_timer; int switch_timer_enabled; unsigned long read_timer_interval; /* Reader wakeup (us) */ timer_t read_timer; int read_timer_enabled; int finalized; /* Has channel been finalized */ size_t priv_data_offset; unsigned int nr_streams; /* Number of streams */ struct lttng_ust_shm_handle *handle; char padding[RB_CHANNEL_PADDING]; /* * Associated backend contains a variable-length array. Needs to * be last member. */ struct channel_backend backend; /* Associated backend */ } __attribute__((aligned(CAA_CACHE_LINE_SIZE))); /* Per-subbuffer commit counters used on the hot path */ #define RB_COMMIT_COUNT_HOT_PADDING 16 struct commit_counters_hot { union v_atomic cc; /* Commit counter */ union v_atomic seq; /* Consecutive commits */ char padding[RB_COMMIT_COUNT_HOT_PADDING]; } __attribute__((aligned(CAA_CACHE_LINE_SIZE))); /* Per-subbuffer commit counters used only on cold paths */ #define RB_COMMIT_COUNT_COLD_PADDING 24 struct commit_counters_cold { union v_atomic cc_sb; /* Incremented _once_ at sb switch */ char padding[RB_COMMIT_COUNT_COLD_PADDING]; } __attribute__((aligned(CAA_CACHE_LINE_SIZE))); /* ring buffer state */ #define RB_RING_BUFFER_PADDING 64 struct lttng_ust_lib_ring_buffer { /* First 32 bytes cache-hot cacheline */ union v_atomic offset; /* Current offset in the buffer */ DECLARE_SHMP(struct commit_counters_hot, commit_hot); /* Commit count per sub-buffer */ long consumed; /* * Current offset in the buffer * standard atomic access (shared) */ int record_disabled; /* End of first 32 bytes cacheline */ union v_atomic last_tsc; /* * Last timestamp written in the buffer. */ struct lttng_ust_lib_ring_buffer_backend backend; /* Associated backend */ DECLARE_SHMP(struct commit_counters_cold, commit_cold); /* Commit count per sub-buffer */ long active_readers; /* * Active readers count * standard atomic access (shared) */ /* Dropped records */ union v_atomic records_lost_full; /* Buffer full */ union v_atomic records_lost_wrap; /* Nested wrap-around */ union v_atomic records_lost_big; /* Events too big */ union v_atomic records_count; /* Number of records written */ union v_atomic records_overrun; /* Number of overwritten records */ //wait_queue_head_t read_wait; /* reader buffer-level wait queue */ int finalized; /* buffer has been finalized */ unsigned long get_subbuf_consumed; /* Read-side consumed */ unsigned long prod_snapshot; /* Producer count snapshot */ unsigned long cons_snapshot; /* Consumer count snapshot */ unsigned int get_subbuf:1; /* Sub-buffer being held by reader */ /* shmp pointer to self */ DECLARE_SHMP(struct lttng_ust_lib_ring_buffer, self); char padding[RB_RING_BUFFER_PADDING]; } __attribute__((aligned(CAA_CACHE_LINE_SIZE))); static inline void *channel_get_private(struct channel *chan) { return ((char *) chan) + chan->priv_data_offset; } #ifndef __rb_same_type #define __rb_same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) #endif /* * Issue warnings and disable channels upon internal error. * Can receive struct lttng_ust_lib_ring_buffer or struct lttng_ust_lib_ring_buffer_backend * parameters. */ #define CHAN_WARN_ON(c, cond) \ ({ \ struct channel *__chan; \ int _____ret = caa_unlikely(cond); \ if (_____ret) { \ if (__rb_same_type(*(c), struct channel_backend)) \ __chan = caa_container_of((void *) (c), \ struct channel, \ backend); \ else if (__rb_same_type(*(c), struct channel)) \ __chan = (void *) (c); \ else \ BUG_ON(1); \ uatomic_inc(&__chan->record_disabled); \ WARN_ON(1); \ } \ _____ret = _____ret; /* For clang "unused result". */ \ }) #endif /* _LTTNG_RING_BUFFER_FRONTEND_TYPES_H */ lttng-ust-2.4.0/libringbuffer/backend_internal.h0000644000175000017500000003723612304144741016666 00000000000000#ifndef _LTTNG_RING_BUFFER_BACKEND_INTERNAL_H #define _LTTNG_RING_BUFFER_BACKEND_INTERNAL_H /* * libringbuffer/backend_internal.h * * Ring buffer backend (internal helpers). * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include "backend_types.h" #include "frontend_types.h" #include "shm.h" /* Ring buffer backend API presented to the frontend */ /* Ring buffer and channel backend create/free */ int lib_ring_buffer_backend_create(struct lttng_ust_lib_ring_buffer_backend *bufb, struct channel_backend *chan, int cpu, struct lttng_ust_shm_handle *handle, struct shm_object *shmobj); void channel_backend_unregister_notifiers(struct channel_backend *chanb); void lib_ring_buffer_backend_free(struct lttng_ust_lib_ring_buffer_backend *bufb); int channel_backend_init(struct channel_backend *chanb, const char *name, const struct lttng_ust_lib_ring_buffer_config *config, size_t subbuf_size, size_t num_subbuf, struct lttng_ust_shm_handle *handle); void channel_backend_free(struct channel_backend *chanb, struct lttng_ust_shm_handle *handle); void lib_ring_buffer_backend_reset(struct lttng_ust_lib_ring_buffer_backend *bufb, struct lttng_ust_shm_handle *handle); void channel_backend_reset(struct channel_backend *chanb); int lib_ring_buffer_backend_init(void); void lib_ring_buffer_backend_exit(void); extern void _lib_ring_buffer_write(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, const void *src, size_t len, ssize_t pagecpy); /* * Subbuffer ID bits for overwrite mode. Need to fit within a single word to be * exchanged atomically. * * Top half word, except lowest bit, belongs to "offset", which is used to keep * to count the produced buffers. For overwrite mode, this provides the * consumer with the capacity to read subbuffers in order, handling the * situation where producers would write up to 2^15 buffers (or 2^31 for 64-bit * systems) concurrently with a single execution of get_subbuf (between offset * sampling and subbuffer ID exchange). */ #define HALF_ULONG_BITS (CAA_BITS_PER_LONG >> 1) #define SB_ID_OFFSET_SHIFT (HALF_ULONG_BITS + 1) #define SB_ID_OFFSET_COUNT (1UL << SB_ID_OFFSET_SHIFT) #define SB_ID_OFFSET_MASK (~(SB_ID_OFFSET_COUNT - 1)) /* * Lowest bit of top word half belongs to noref. Used only for overwrite mode. */ #define SB_ID_NOREF_SHIFT (SB_ID_OFFSET_SHIFT - 1) #define SB_ID_NOREF_COUNT (1UL << SB_ID_NOREF_SHIFT) #define SB_ID_NOREF_MASK SB_ID_NOREF_COUNT /* * In overwrite mode: lowest half of word is used for index. * Limit of 2^16 subbuffers per buffer on 32-bit, 2^32 on 64-bit. * In producer-consumer mode: whole word used for index. */ #define SB_ID_INDEX_SHIFT 0 #define SB_ID_INDEX_COUNT (1UL << SB_ID_INDEX_SHIFT) #define SB_ID_INDEX_MASK (SB_ID_NOREF_COUNT - 1) /* * Construct the subbuffer id from offset, index and noref. Use only the index * for producer-consumer mode (offset and noref are only used in overwrite * mode). */ static inline unsigned long subbuffer_id(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long offset, unsigned long noref, unsigned long index) { if (config->mode == RING_BUFFER_OVERWRITE) return (offset << SB_ID_OFFSET_SHIFT) | (noref << SB_ID_NOREF_SHIFT) | index; else return index; } /* * Compare offset with the offset contained within id. Return 1 if the offset * bits are identical, else 0. */ static inline int subbuffer_id_compare_offset(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long id, unsigned long offset) { return (id & SB_ID_OFFSET_MASK) == (offset << SB_ID_OFFSET_SHIFT); } static inline unsigned long subbuffer_id_get_index(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long id) { if (config->mode == RING_BUFFER_OVERWRITE) return id & SB_ID_INDEX_MASK; else return id; } static inline unsigned long subbuffer_id_is_noref(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long id) { if (config->mode == RING_BUFFER_OVERWRITE) return !!(id & SB_ID_NOREF_MASK); else return 1; } /* * Only used by reader on subbuffer ID it has exclusive access to. No volatile * needed. */ static inline void subbuffer_id_set_noref(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long *id) { if (config->mode == RING_BUFFER_OVERWRITE) *id |= SB_ID_NOREF_MASK; } static inline void subbuffer_id_set_noref_offset(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long *id, unsigned long offset) { unsigned long tmp; if (config->mode == RING_BUFFER_OVERWRITE) { tmp = *id; tmp &= ~SB_ID_OFFSET_MASK; tmp |= offset << SB_ID_OFFSET_SHIFT; tmp |= SB_ID_NOREF_MASK; /* Volatile store, read concurrently by readers. */ CMM_ACCESS_ONCE(*id) = tmp; } } /* No volatile access, since already used locally */ static inline void subbuffer_id_clear_noref(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long *id) { if (config->mode == RING_BUFFER_OVERWRITE) *id &= ~SB_ID_NOREF_MASK; } /* * For overwrite mode, cap the number of subbuffers per buffer to: * 2^16 on 32-bit architectures * 2^32 on 64-bit architectures * This is required to fit in the index part of the ID. Return 0 on success, * -EPERM on failure. */ static inline int subbuffer_id_check_index(const struct lttng_ust_lib_ring_buffer_config *config, unsigned long num_subbuf) { if (config->mode == RING_BUFFER_OVERWRITE) return (num_subbuf > (1UL << HALF_ULONG_BITS)) ? -EPERM : 0; else return 0; } static inline void subbuffer_count_record(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, unsigned long idx, struct lttng_ust_shm_handle *handle) { unsigned long sb_bindex; sb_bindex = subbuffer_id_get_index(config, shmp_index(handle, bufb->buf_wsb, idx)->id); v_inc(config, &shmp(handle, shmp_index(handle, bufb->array, sb_bindex)->shmp)->records_commit); } /* * Reader has exclusive subbuffer access for record consumption. No need to * perform the decrement atomically. */ static inline void subbuffer_consume_record(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, struct lttng_ust_shm_handle *handle) { unsigned long sb_bindex; sb_bindex = subbuffer_id_get_index(config, bufb->buf_rsb.id); CHAN_WARN_ON(shmp(handle, bufb->chan), !v_read(config, &shmp(handle, shmp_index(handle, bufb->array, sb_bindex)->shmp)->records_unread)); /* Non-atomic decrement protected by exclusive subbuffer access */ _v_dec(config, &shmp(handle, shmp_index(handle, bufb->array, sb_bindex)->shmp)->records_unread); v_inc(config, &bufb->records_read); } static inline unsigned long subbuffer_get_records_count( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, unsigned long idx, struct lttng_ust_shm_handle *handle) { unsigned long sb_bindex; sb_bindex = subbuffer_id_get_index(config, shmp_index(handle, bufb->buf_wsb, idx)->id); return v_read(config, &shmp(handle, shmp_index(handle, bufb->array, sb_bindex)->shmp)->records_commit); } /* * Must be executed at subbuffer delivery when the writer has _exclusive_ * subbuffer access. See lib_ring_buffer_check_deliver() for details. * lib_ring_buffer_get_records_count() must be called to get the records * count before this function, because it resets the records_commit * count. */ static inline unsigned long subbuffer_count_records_overrun( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, unsigned long idx, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend_pages_shmp *pages; unsigned long overruns, sb_bindex; sb_bindex = subbuffer_id_get_index(config, shmp_index(handle, bufb->buf_wsb, idx)->id); pages = shmp_index(handle, bufb->array, sb_bindex); overruns = v_read(config, &shmp(handle, pages->shmp)->records_unread); v_set(config, &shmp(handle, pages->shmp)->records_unread, v_read(config, &shmp(handle, pages->shmp)->records_commit)); v_set(config, &shmp(handle, pages->shmp)->records_commit, 0); return overruns; } static inline void subbuffer_set_data_size(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, unsigned long idx, unsigned long data_size, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend_pages_shmp *pages; unsigned long sb_bindex; sb_bindex = subbuffer_id_get_index(config, shmp_index(handle, bufb->buf_wsb, idx)->id); pages = shmp_index(handle, bufb->array, sb_bindex); shmp(handle, pages->shmp)->data_size = data_size; } static inline unsigned long subbuffer_get_read_data_size( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend_pages_shmp *pages; unsigned long sb_bindex; sb_bindex = subbuffer_id_get_index(config, bufb->buf_rsb.id); pages = shmp_index(handle, bufb->array, sb_bindex); return shmp(handle, pages->shmp)->data_size; } static inline unsigned long subbuffer_get_data_size( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, unsigned long idx, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend_pages_shmp *pages; unsigned long sb_bindex; sb_bindex = subbuffer_id_get_index(config, shmp_index(handle, bufb->buf_wsb, idx)->id); pages = shmp_index(handle, bufb->array, sb_bindex); return shmp(handle, pages->shmp)->data_size; } /** * lib_ring_buffer_clear_noref - Clear the noref subbuffer flag, called by * writer. */ static inline void lib_ring_buffer_clear_noref(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, unsigned long idx, struct lttng_ust_shm_handle *handle) { unsigned long id, new_id; if (config->mode != RING_BUFFER_OVERWRITE) return; /* * Performing a volatile access to read the sb_pages, because we want to * read a coherent version of the pointer and the associated noref flag. */ id = CMM_ACCESS_ONCE(shmp_index(handle, bufb->buf_wsb, idx)->id); for (;;) { /* This check is called on the fast path for each record. */ if (caa_likely(!subbuffer_id_is_noref(config, id))) { /* * Store after load dependency ordering the writes to * the subbuffer after load and test of the noref flag * matches the memory barrier implied by the cmpxchg() * in update_read_sb_index(). */ return; /* Already writing to this buffer */ } new_id = id; subbuffer_id_clear_noref(config, &new_id); new_id = uatomic_cmpxchg(&shmp_index(handle, bufb->buf_wsb, idx)->id, id, new_id); if (caa_likely(new_id == id)) break; id = new_id; } } /** * lib_ring_buffer_set_noref_offset - Set the noref subbuffer flag and offset, * called by writer. */ static inline void lib_ring_buffer_set_noref_offset(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, unsigned long idx, unsigned long offset, struct lttng_ust_shm_handle *handle) { if (config->mode != RING_BUFFER_OVERWRITE) return; /* * Because ring_buffer_set_noref() is only called by a single thread * (the one which updated the cc_sb value), there are no concurrent * updates to take care of: other writers have not updated cc_sb, so * they cannot set the noref flag, and concurrent readers cannot modify * the pointer because the noref flag is not set yet. * The smp_wmb() in ring_buffer_commit() takes care of ordering writes * to the subbuffer before this set noref operation. * subbuffer_set_noref() uses a volatile store to deal with concurrent * readers of the noref flag. */ CHAN_WARN_ON(shmp(handle, bufb->chan), subbuffer_id_is_noref(config, shmp_index(handle, bufb->buf_wsb, idx)->id)); /* * Memory barrier that ensures counter stores are ordered before set * noref and offset. */ cmm_smp_mb(); subbuffer_id_set_noref_offset(config, &shmp_index(handle, bufb->buf_wsb, idx)->id, offset); } /** * update_read_sb_index - Read-side subbuffer index update. */ static inline int update_read_sb_index(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, struct channel_backend *chanb, unsigned long consumed_idx, unsigned long consumed_count, struct lttng_ust_shm_handle *handle) { unsigned long old_id, new_id; if (config->mode == RING_BUFFER_OVERWRITE) { /* * Exchange the target writer subbuffer with our own unused * subbuffer. No need to use CMM_ACCESS_ONCE() here to read the * old_wpage, because the value read will be confirmed by the * following cmpxchg(). */ old_id = shmp_index(handle, bufb->buf_wsb, consumed_idx)->id; if (caa_unlikely(!subbuffer_id_is_noref(config, old_id))) return -EAGAIN; /* * Make sure the offset count we are expecting matches the one * indicated by the writer. */ if (caa_unlikely(!subbuffer_id_compare_offset(config, old_id, consumed_count))) return -EAGAIN; CHAN_WARN_ON(shmp(handle, bufb->chan), !subbuffer_id_is_noref(config, bufb->buf_rsb.id)); subbuffer_id_set_noref_offset(config, &bufb->buf_rsb.id, consumed_count); new_id = uatomic_cmpxchg(&shmp_index(handle, bufb->buf_wsb, consumed_idx)->id, old_id, bufb->buf_rsb.id); if (caa_unlikely(old_id != new_id)) return -EAGAIN; bufb->buf_rsb.id = new_id; } else { /* No page exchange, use the writer page directly */ bufb->buf_rsb.id = shmp_index(handle, bufb->buf_wsb, consumed_idx)->id; } return 0; } #ifndef inline_memcpy #define inline_memcpy(dest, src, n) memcpy(dest, src, n) #endif /* * Use the architecture-specific memcpy implementation for constant-sized * inputs, but rely on an inline memcpy for length statically unknown. * The function call to memcpy is just way too expensive for a fast path. */ #define lib_ring_buffer_do_copy(config, dest, src, len) \ do { \ size_t __len = (len); \ if (__builtin_constant_p(len)) \ memcpy(dest, src, __len); \ else \ inline_memcpy(dest, src, __len); \ } while (0) /* arch-agnostic implementation */ static inline int lttng_ust_fls(unsigned int x) { int r = 32; if (!x) return 0; if (!(x & 0xFFFF0000U)) { x <<= 16; r -= 16; } if (!(x & 0xFF000000U)) { x <<= 8; r -= 8; } if (!(x & 0xF0000000U)) { x <<= 4; r -= 4; } if (!(x & 0xC0000000U)) { x <<= 2; r -= 2; } if (!(x & 0x80000000U)) { x <<= 1; r -= 1; } return r; } static inline int get_count_order(unsigned int count) { int order; order = lttng_ust_fls(count) - 1; if (count & (count - 1)) order++; return order; } #endif /* _LTTNG_RING_BUFFER_BACKEND_INTERNAL_H */ lttng-ust-2.4.0/libringbuffer/ring_buffer_backend.c0000644000175000017500000004044412304151532017324 00000000000000/* * ring_buffer_backend.c * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include #include #include #include "vatomic.h" #include "backend.h" #include "frontend.h" #include "smp.h" #include "shm.h" /** * lib_ring_buffer_backend_allocate - allocate a channel buffer * @config: ring buffer instance configuration * @buf: the buffer struct * @size: total size of the buffer * @num_subbuf: number of subbuffers * @extra_reader_sb: need extra subbuffer for reader */ static int lib_ring_buffer_backend_allocate(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_backend *bufb, size_t size, size_t num_subbuf, int extra_reader_sb, struct lttng_ust_shm_handle *handle, struct shm_object *shmobj) { struct channel_backend *chanb = &shmp(handle, bufb->chan)->backend; unsigned long subbuf_size, mmap_offset = 0; unsigned long num_subbuf_alloc; unsigned long i; subbuf_size = chanb->subbuf_size; num_subbuf_alloc = num_subbuf; if (extra_reader_sb) num_subbuf_alloc++; align_shm(shmobj, __alignof__(struct lttng_ust_lib_ring_buffer_backend_pages_shmp)); set_shmp(bufb->array, zalloc_shm(shmobj, sizeof(struct lttng_ust_lib_ring_buffer_backend_pages_shmp) * num_subbuf_alloc)); if (caa_unlikely(!shmp(handle, bufb->array))) goto array_error; /* * This is the largest element (the buffer pages) which needs to * be aligned on PAGE_SIZE. */ align_shm(shmobj, PAGE_SIZE); set_shmp(bufb->memory_map, zalloc_shm(shmobj, subbuf_size * num_subbuf_alloc)); if (caa_unlikely(!shmp(handle, bufb->memory_map))) goto memory_map_error; /* Allocate backend pages array elements */ for (i = 0; i < num_subbuf_alloc; i++) { align_shm(shmobj, __alignof__(struct lttng_ust_lib_ring_buffer_backend_pages)); set_shmp(shmp_index(handle, bufb->array, i)->shmp, zalloc_shm(shmobj, sizeof(struct lttng_ust_lib_ring_buffer_backend_pages))); if (!shmp(handle, shmp_index(handle, bufb->array, i)->shmp)) goto free_array; } /* Allocate write-side subbuffer table */ align_shm(shmobj, __alignof__(struct lttng_ust_lib_ring_buffer_backend_subbuffer)); set_shmp(bufb->buf_wsb, zalloc_shm(shmobj, sizeof(struct lttng_ust_lib_ring_buffer_backend_subbuffer) * num_subbuf)); if (caa_unlikely(!shmp(handle, bufb->buf_wsb))) goto free_array; for (i = 0; i < num_subbuf; i++) shmp_index(handle, bufb->buf_wsb, i)->id = subbuffer_id(config, 0, 1, i); /* Assign read-side subbuffer table */ if (extra_reader_sb) bufb->buf_rsb.id = subbuffer_id(config, 0, 1, num_subbuf_alloc - 1); else bufb->buf_rsb.id = subbuffer_id(config, 0, 1, 0); /* Assign pages to page index */ for (i = 0; i < num_subbuf_alloc; i++) { struct shm_ref ref; ref.index = bufb->memory_map._ref.index; ref.offset = bufb->memory_map._ref.offset; ref.offset += i * subbuf_size; set_shmp(shmp(handle, shmp_index(handle, bufb->array, i)->shmp)->p, ref); if (config->output == RING_BUFFER_MMAP) { shmp(handle, shmp_index(handle, bufb->array, i)->shmp)->mmap_offset = mmap_offset; mmap_offset += subbuf_size; } } return 0; free_array: /* bufb->array[i] will be freed by shm teardown */ memory_map_error: /* bufb->array will be freed by shm teardown */ array_error: return -ENOMEM; } int lib_ring_buffer_backend_create(struct lttng_ust_lib_ring_buffer_backend *bufb, struct channel_backend *chanb, int cpu, struct lttng_ust_shm_handle *handle, struct shm_object *shmobj) { const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; set_shmp(bufb->chan, handle->chan._ref); bufb->cpu = cpu; return lib_ring_buffer_backend_allocate(config, bufb, chanb->buf_size, chanb->num_subbuf, chanb->extra_reader_sb, handle, shmobj); } void lib_ring_buffer_backend_reset(struct lttng_ust_lib_ring_buffer_backend *bufb, struct lttng_ust_shm_handle *handle) { struct channel_backend *chanb = &shmp(handle, bufb->chan)->backend; const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; unsigned long num_subbuf_alloc; unsigned int i; num_subbuf_alloc = chanb->num_subbuf; if (chanb->extra_reader_sb) num_subbuf_alloc++; for (i = 0; i < chanb->num_subbuf; i++) shmp_index(handle, bufb->buf_wsb, i)->id = subbuffer_id(config, 0, 1, i); if (chanb->extra_reader_sb) bufb->buf_rsb.id = subbuffer_id(config, 0, 1, num_subbuf_alloc - 1); else bufb->buf_rsb.id = subbuffer_id(config, 0, 1, 0); for (i = 0; i < num_subbuf_alloc; i++) { /* Don't reset mmap_offset */ v_set(config, &shmp(handle, shmp_index(handle, bufb->array, i)->shmp)->records_commit, 0); v_set(config, &shmp(handle, shmp_index(handle, bufb->array, i)->shmp)->records_unread, 0); shmp(handle, shmp_index(handle, bufb->array, i)->shmp)->data_size = 0; /* Don't reset backend page and virt addresses */ } /* Don't reset num_pages_per_subbuf, cpu, allocated */ v_set(config, &bufb->records_read, 0); } /* * The frontend is responsible for also calling ring_buffer_backend_reset for * each buffer when calling channel_backend_reset. */ void channel_backend_reset(struct channel_backend *chanb) { struct channel *chan = caa_container_of(chanb, struct channel, backend); const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; /* * Don't reset buf_size, subbuf_size, subbuf_size_order, * num_subbuf_order, buf_size_order, extra_reader_sb, num_subbuf, * priv, notifiers, config, cpumask and name. */ chanb->start_tsc = config->cb.ring_buffer_clock_read(chan); } /** * channel_backend_init - initialize a channel backend * @chanb: channel backend * @name: channel name * @config: client ring buffer configuration * @parent: dentry of parent directory, %NULL for root directory * @subbuf_size: size of sub-buffers (> PAGE_SIZE, power of 2) * @num_subbuf: number of sub-buffers (power of 2) * @lttng_ust_shm_handle: shared memory handle * * Returns channel pointer if successful, %NULL otherwise. * * Creates per-cpu channel buffers using the sizes and attributes * specified. The created channel buffer files will be named * name_0...name_N-1. File permissions will be %S_IRUSR. * * Called with CPU hotplug disabled. */ int channel_backend_init(struct channel_backend *chanb, const char *name, const struct lttng_ust_lib_ring_buffer_config *config, size_t subbuf_size, size_t num_subbuf, struct lttng_ust_shm_handle *handle) { struct channel *chan = caa_container_of(chanb, struct channel, backend); unsigned int i; int ret; size_t shmsize = 0, num_subbuf_alloc; if (!name) return -EPERM; /* Check that the subbuffer size is larger than a page. */ if (subbuf_size < PAGE_SIZE) return -EINVAL; /* * Make sure the number of subbuffers and subbuffer size are * power of 2, and nonzero. */ if (!subbuf_size || (subbuf_size & (subbuf_size - 1))) return -EINVAL; if (!num_subbuf || (num_subbuf & (num_subbuf - 1))) return -EINVAL; ret = subbuffer_id_check_index(config, num_subbuf); if (ret) return ret; chanb->buf_size = num_subbuf * subbuf_size; chanb->subbuf_size = subbuf_size; chanb->buf_size_order = get_count_order(chanb->buf_size); chanb->subbuf_size_order = get_count_order(subbuf_size); chanb->num_subbuf_order = get_count_order(num_subbuf); chanb->extra_reader_sb = (config->mode == RING_BUFFER_OVERWRITE) ? 1 : 0; chanb->num_subbuf = num_subbuf; strncpy(chanb->name, name, NAME_MAX); chanb->name[NAME_MAX - 1] = '\0'; memcpy(&chanb->config, config, sizeof(*config)); /* Per-cpu buffer size: control (prior to backend) */ shmsize = offset_align(shmsize, __alignof__(struct lttng_ust_lib_ring_buffer)); shmsize += sizeof(struct lttng_ust_lib_ring_buffer); /* Per-cpu buffer size: backend */ /* num_subbuf + 1 is the worse case */ num_subbuf_alloc = num_subbuf + 1; shmsize += offset_align(shmsize, __alignof__(struct lttng_ust_lib_ring_buffer_backend_pages_shmp)); shmsize += sizeof(struct lttng_ust_lib_ring_buffer_backend_pages_shmp) * num_subbuf_alloc; shmsize += offset_align(shmsize, PAGE_SIZE); shmsize += subbuf_size * num_subbuf_alloc; shmsize += offset_align(shmsize, __alignof__(struct lttng_ust_lib_ring_buffer_backend_pages)); shmsize += sizeof(struct lttng_ust_lib_ring_buffer_backend_pages) * num_subbuf_alloc; shmsize += offset_align(shmsize, __alignof__(struct lttng_ust_lib_ring_buffer_backend_subbuffer)); shmsize += sizeof(struct lttng_ust_lib_ring_buffer_backend_subbuffer) * num_subbuf; /* Per-cpu buffer size: control (after backend) */ shmsize += offset_align(shmsize, __alignof__(struct commit_counters_hot)); shmsize += sizeof(struct commit_counters_hot) * num_subbuf; shmsize += offset_align(shmsize, __alignof__(struct commit_counters_cold)); shmsize += sizeof(struct commit_counters_cold) * num_subbuf; if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) { struct lttng_ust_lib_ring_buffer *buf; /* * We need to allocate for all possible cpus. */ for_each_possible_cpu(i) { struct shm_object *shmobj; shmobj = shm_object_table_alloc(handle->table, shmsize, SHM_OBJECT_SHM); if (!shmobj) goto end; align_shm(shmobj, __alignof__(struct lttng_ust_lib_ring_buffer)); set_shmp(chanb->buf[i].shmp, zalloc_shm(shmobj, sizeof(struct lttng_ust_lib_ring_buffer))); buf = shmp(handle, chanb->buf[i].shmp); if (!buf) goto end; set_shmp(buf->self, chanb->buf[i].shmp._ref); ret = lib_ring_buffer_create(buf, chanb, i, handle, shmobj); if (ret) goto free_bufs; /* cpu hotplug locked */ } } else { struct shm_object *shmobj; struct lttng_ust_lib_ring_buffer *buf; shmobj = shm_object_table_alloc(handle->table, shmsize, SHM_OBJECT_SHM); if (!shmobj) goto end; align_shm(shmobj, __alignof__(struct lttng_ust_lib_ring_buffer)); set_shmp(chanb->buf[0].shmp, zalloc_shm(shmobj, sizeof(struct lttng_ust_lib_ring_buffer))); buf = shmp(handle, chanb->buf[0].shmp); if (!buf) goto end; set_shmp(buf->self, chanb->buf[0].shmp._ref); ret = lib_ring_buffer_create(buf, chanb, -1, handle, shmobj); if (ret) goto free_bufs; } chanb->start_tsc = config->cb.ring_buffer_clock_read(chan); return 0; free_bufs: /* We only free the buffer data upon shm teardown */ end: return -ENOMEM; } /** * channel_backend_free - destroy the channel * @chan: the channel * * Destroy all channel buffers and frees the channel. */ void channel_backend_free(struct channel_backend *chanb, struct lttng_ust_shm_handle *handle) { /* SHM teardown takes care of everything */ } /** * lib_ring_buffer_read - read data from ring_buffer_buffer. * @bufb : buffer backend * @offset : offset within the buffer * @dest : destination address * @len : length to copy to destination * * Should be protected by get_subbuf/put_subbuf. * Returns the length copied. */ size_t lib_ring_buffer_read(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, void *dest, size_t len, struct lttng_ust_shm_handle *handle) { struct channel_backend *chanb = &shmp(handle, bufb->chan)->backend; const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; ssize_t orig_len; struct lttng_ust_lib_ring_buffer_backend_pages_shmp *rpages; unsigned long sb_bindex, id; orig_len = len; offset &= chanb->buf_size - 1; if (caa_unlikely(!len)) return 0; id = bufb->buf_rsb.id; sb_bindex = subbuffer_id_get_index(config, id); rpages = shmp_index(handle, bufb->array, sb_bindex); /* * Underlying layer should never ask for reads across * subbuffers. */ CHAN_WARN_ON(chanb, offset >= chanb->buf_size); CHAN_WARN_ON(chanb, config->mode == RING_BUFFER_OVERWRITE && subbuffer_id_is_noref(config, id)); memcpy(dest, shmp_index(handle, shmp(handle, rpages->shmp)->p, offset & (chanb->subbuf_size - 1)), len); return orig_len; } /** * lib_ring_buffer_read_cstr - read a C-style string from ring_buffer. * @bufb : buffer backend * @offset : offset within the buffer * @dest : destination address * @len : destination's length * * Return string's length, or -EINVAL on error. * Should be protected by get_subbuf/put_subbuf. * Destination length should be at least 1 to hold '\0'. */ int lib_ring_buffer_read_cstr(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, void *dest, size_t len, struct lttng_ust_shm_handle *handle) { struct channel_backend *chanb = &shmp(handle, bufb->chan)->backend; const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; ssize_t string_len, orig_offset; char *str; struct lttng_ust_lib_ring_buffer_backend_pages_shmp *rpages; unsigned long sb_bindex, id; if (caa_unlikely(!len)) return -EINVAL; offset &= chanb->buf_size - 1; orig_offset = offset; id = bufb->buf_rsb.id; sb_bindex = subbuffer_id_get_index(config, id); rpages = shmp_index(handle, bufb->array, sb_bindex); /* * Underlying layer should never ask for reads across * subbuffers. */ CHAN_WARN_ON(chanb, offset >= chanb->buf_size); CHAN_WARN_ON(chanb, config->mode == RING_BUFFER_OVERWRITE && subbuffer_id_is_noref(config, id)); str = shmp_index(handle, shmp(handle, rpages->shmp)->p, offset & (chanb->subbuf_size - 1)); string_len = strnlen(str, len); if (dest && len) { memcpy(dest, str, string_len); ((char *)dest)[0] = 0; } return offset - orig_offset; } /** * lib_ring_buffer_read_offset_address - get address of a buffer location * @bufb : buffer backend * @offset : offset within the buffer. * * Return the address where a given offset is located (for read). * Should be used to get the current subbuffer header pointer. Given we know * it's never on a page boundary, it's safe to read/write directly * from/to this address, as long as the read/write is never bigger than * a page size. */ void *lib_ring_buffer_read_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend_pages_shmp *rpages; struct channel_backend *chanb = &shmp(handle, bufb->chan)->backend; const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; unsigned long sb_bindex, id; offset &= chanb->buf_size - 1; id = bufb->buf_rsb.id; sb_bindex = subbuffer_id_get_index(config, id); rpages = shmp_index(handle, bufb->array, sb_bindex); CHAN_WARN_ON(chanb, config->mode == RING_BUFFER_OVERWRITE && subbuffer_id_is_noref(config, id)); return shmp_index(handle, shmp(handle, rpages->shmp)->p, offset & (chanb->subbuf_size - 1)); } /** * lib_ring_buffer_offset_address - get address of a location within the buffer * @bufb : buffer backend * @offset : offset within the buffer. * * Return the address where a given offset is located. * Should be used to get the current subbuffer header pointer. Given we know * it's always at the beginning of a page, it's safe to write directly to this * address, as long as the write is never bigger than a page size. */ void *lib_ring_buffer_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, struct lttng_ust_shm_handle *handle) { size_t sbidx; struct lttng_ust_lib_ring_buffer_backend_pages_shmp *rpages; struct channel_backend *chanb = &shmp(handle, bufb->chan)->backend; const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config; unsigned long sb_bindex, id; offset &= chanb->buf_size - 1; sbidx = offset >> chanb->subbuf_size_order; id = shmp_index(handle, bufb->buf_wsb, sbidx)->id; sb_bindex = subbuffer_id_get_index(config, id); rpages = shmp_index(handle, bufb->array, sb_bindex); CHAN_WARN_ON(chanb, config->mode == RING_BUFFER_OVERWRITE && subbuffer_id_is_noref(config, id)); return shmp_index(handle, shmp(handle, rpages->shmp)->p, offset & (chanb->subbuf_size - 1)); } lttng-ust-2.4.0/libringbuffer/vatomic.h0000644000175000017500000000570412200722032015026 00000000000000#ifndef _LTTNG_RING_BUFFER_VATOMIC_H #define _LTTNG_RING_BUFFER_VATOMIC_H /* * libringbuffer/vatomic.h * * Copyright (C) 2010-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include /* * Same data type (long) accessed differently depending on configuration. * v field is for non-atomic access (protected by mutual exclusion). * In the fast-path, the ring_buffer_config structure is constant, so the * compiler can statically select the appropriate branch. * local_t is used for per-cpu and per-thread buffers. * atomic_long_t is used for globally shared buffers. */ union v_atomic { long a; /* accessed through uatomic */ long v; }; static inline long v_read(const struct lttng_ust_lib_ring_buffer_config *config, union v_atomic *v_a) { assert(config->sync != RING_BUFFER_SYNC_PER_CPU); return uatomic_read(&v_a->a); } static inline void v_set(const struct lttng_ust_lib_ring_buffer_config *config, union v_atomic *v_a, long v) { assert(config->sync != RING_BUFFER_SYNC_PER_CPU); uatomic_set(&v_a->a, v); } static inline void v_add(const struct lttng_ust_lib_ring_buffer_config *config, long v, union v_atomic *v_a) { assert(config->sync != RING_BUFFER_SYNC_PER_CPU); uatomic_add(&v_a->a, v); } static inline void v_inc(const struct lttng_ust_lib_ring_buffer_config *config, union v_atomic *v_a) { assert(config->sync != RING_BUFFER_SYNC_PER_CPU); uatomic_inc(&v_a->a); } /* * Non-atomic decrement. Only used by reader, apply to reader-owned subbuffer. */ static inline void _v_dec(const struct lttng_ust_lib_ring_buffer_config *config, union v_atomic *v_a) { --v_a->v; } static inline long v_cmpxchg(const struct lttng_ust_lib_ring_buffer_config *config, union v_atomic *v_a, long old, long _new) { assert(config->sync != RING_BUFFER_SYNC_PER_CPU); return uatomic_cmpxchg(&v_a->a, old, _new); } #endif /* _LTTNG_RING_BUFFER_VATOMIC_H */ lttng-ust-2.4.0/libringbuffer/shm_internal.h0000644000175000017500000000222112123372601016045 00000000000000#ifndef _LIBRINGBUFFER_SHM_INTERNAL_H #define _LIBRINGBUFFER_SHM_INTERNAL_H /* * libringbuffer/shm_internal.h * * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ struct shm_ref { volatile ssize_t index; /* within the object table */ volatile ssize_t offset; /* within the object */ }; #define DECLARE_SHMP(type, name) \ union { \ struct shm_ref _ref; \ type *_type; \ } name #endif /* _LIBRINGBUFFER_SHM_INTERNAL_H */ lttng-ust-2.4.0/libringbuffer/backend.h0000644000175000017500000001174012244163736014772 00000000000000#ifndef _LTTNG_RING_BUFFER_BACKEND_H #define _LTTNG_RING_BUFFER_BACKEND_H /* * libringbuffer/backend.h * * Ring buffer backend (API). * * Copyright (C) 2011-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Credits to Steven Rostedt for proposing to use an extra-subbuffer owned by * the reader in flight recorder mode. */ #include /* Internal helpers */ #include "backend_internal.h" #include "frontend_internal.h" /* Ring buffer backend API */ /* Ring buffer backend access (read/write) */ extern size_t lib_ring_buffer_read(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, void *dest, size_t len, struct lttng_ust_shm_handle *handle); extern int lib_ring_buffer_read_cstr(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, void *dest, size_t len, struct lttng_ust_shm_handle *handle); /* * Return the address where a given offset is located. * Should be used to get the current subbuffer header pointer. Given we know * it's never on a page boundary, it's safe to write directly to this address, * as long as the write is never bigger than a page size. */ extern void * lib_ring_buffer_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, struct lttng_ust_shm_handle *handle); extern void * lib_ring_buffer_read_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb, size_t offset, struct lttng_ust_shm_handle *handle); /** * lib_ring_buffer_write - write data to a buffer backend * @config : ring buffer instance configuration * @ctx: ring buffer context. (input arguments only) * @src : source pointer to copy from * @len : length of data to copy * * This function copies "len" bytes of data from a source pointer to a buffer * backend, at the current context offset. This is more or less a buffer * backend-specific memcpy() operation. Calls the slow path (_ring_buffer_write) * if copy is crossing a page boundary. */ static inline void lib_ring_buffer_write(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer_ctx *ctx, const void *src, size_t len) { struct lttng_ust_lib_ring_buffer_backend *bufb = &ctx->buf->backend; struct channel_backend *chanb = &ctx->chan->backend; struct lttng_ust_shm_handle *handle = ctx->handle; size_t sbidx; size_t offset = ctx->buf_offset; struct lttng_ust_lib_ring_buffer_backend_pages_shmp *rpages; unsigned long sb_bindex, id; if (caa_unlikely(!len)) return; offset &= chanb->buf_size - 1; sbidx = offset >> chanb->subbuf_size_order; id = shmp_index(handle, bufb->buf_wsb, sbidx)->id; sb_bindex = subbuffer_id_get_index(config, id); rpages = shmp_index(handle, bufb->array, sb_bindex); CHAN_WARN_ON(ctx->chan, config->mode == RING_BUFFER_OVERWRITE && subbuffer_id_is_noref(config, id)); /* * Underlying layer should never ask for writes across * subbuffers. */ CHAN_WARN_ON(chanb, offset >= chanb->buf_size); lib_ring_buffer_do_copy(config, shmp_index(handle, shmp(handle, rpages->shmp)->p, offset & (chanb->subbuf_size - 1)), src, len); ctx->buf_offset += len; } /* * This accessor counts the number of unread records in a buffer. * It only provides a consistent value if no reads not writes are performed * concurrently. */ static inline unsigned long lib_ring_buffer_get_records_unread( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { struct lttng_ust_lib_ring_buffer_backend *bufb = &buf->backend; struct lttng_ust_lib_ring_buffer_backend_pages_shmp *pages; unsigned long records_unread = 0, sb_bindex, id; unsigned int i; for (i = 0; i < shmp(handle, bufb->chan)->backend.num_subbuf; i++) { id = shmp_index(handle, bufb->buf_wsb, i)->id; sb_bindex = subbuffer_id_get_index(config, id); pages = shmp_index(handle, bufb->array, sb_bindex); records_unread += v_read(config, &shmp(handle, pages->shmp)->records_unread); } if (config->mode == RING_BUFFER_OVERWRITE) { id = bufb->buf_rsb.id; sb_bindex = subbuffer_id_get_index(config, id); pages = shmp_index(handle, bufb->array, sb_bindex); records_unread += v_read(config, &shmp(handle, pages->shmp)->records_unread); } return records_unread; } #endif /* _LTTNG_RING_BUFFER_BACKEND_H */ lttng-ust-2.4.0/libringbuffer/frontend.h0000644000175000017500000002101112275157353015214 00000000000000#ifndef _LTTNG_RING_BUFFER_FRONTEND_H #define _LTTNG_RING_BUFFER_FRONTEND_H /* * libringbuffer/frontend.h * * Ring Buffer Library Synchronization Header (API). * * Copyright (C) 2005-2012 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * * Author: * Mathieu Desnoyers * * See ring_buffer_frontend.c for more information on wait-free algorithms. */ #include #include #include "smp.h" /* Internal helpers */ #include "frontend_internal.h" /* Buffer creation/removal and setup operations */ /* * switch_timer_interval is the time interval (in us) to fill sub-buffers with * padding to let readers get those sub-buffers. Used for live streaming. * * read_timer_interval is the time interval (in us) to wake up pending readers. * * buf_addr is a pointer the the beginning of the preallocated buffer contiguous * address mapping. It is used only by RING_BUFFER_STATIC configuration. It can * be set to NULL for other backends. * * priv_data (output) is set to a pointer into a "priv_data_len"-sized * memory area for client-specific data. This memory is managed by lib * ring buffer. priv_data_align is the alignment required for the * private data area. */ extern struct lttng_ust_shm_handle *channel_create(const struct lttng_ust_lib_ring_buffer_config *config, const char *name, void **priv_data, size_t priv_data_align, size_t priv_data_size, void *priv_data_init, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval); /* * channel_destroy finalizes all channel's buffers, waits for readers to * release all references, and destroys the channel. */ extern void channel_destroy(struct channel *chan, struct lttng_ust_shm_handle *handle, int consumer); /* Buffer read operations */ /* * Iteration on channel cpumask needs to issue a read barrier to match the write * barrier in cpu hotplug. It orders the cpumask read before read of per-cpu * buffer data. The per-cpu buffer is never removed by cpu hotplug; teardown is * only performed at channel destruction. */ #define for_each_channel_cpu(cpu, chan) \ for_each_possible_cpu(cpu) extern struct lttng_ust_lib_ring_buffer *channel_get_ring_buffer( const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, int cpu, struct lttng_ust_shm_handle *handle, int *shm_fd, int *wait_fd, int *wakeup_fd, uint64_t *memory_map_size); extern int ring_buffer_channel_close_wait_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle); extern int ring_buffer_channel_close_wakeup_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle); extern int ring_buffer_stream_close_wait_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle, int cpu); extern int ring_buffer_stream_close_wakeup_fd(const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_shm_handle *handle, int cpu); extern int lib_ring_buffer_open_read(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle); extern void lib_ring_buffer_release_read(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle); /* * Initialize signals for ring buffer. Should be called early e.g. by * main() in the program to affect all threads. */ void lib_ringbuffer_signal_init(void); /* * Read sequence: snapshot, many get_subbuf/put_subbuf, move_consumer. */ extern int lib_ring_buffer_snapshot(struct lttng_ust_lib_ring_buffer *buf, unsigned long *consumed, unsigned long *produced, struct lttng_ust_shm_handle *handle); extern void lib_ring_buffer_move_consumer(struct lttng_ust_lib_ring_buffer *buf, unsigned long consumed_new, struct lttng_ust_shm_handle *handle); extern int lib_ring_buffer_get_subbuf(struct lttng_ust_lib_ring_buffer *buf, unsigned long consumed, struct lttng_ust_shm_handle *handle); extern void lib_ring_buffer_put_subbuf(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle); /* * lib_ring_buffer_get_next_subbuf/lib_ring_buffer_put_next_subbuf are helpers * to read sub-buffers sequentially. */ static inline int lib_ring_buffer_get_next_subbuf(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { int ret; ret = lib_ring_buffer_snapshot(buf, &buf->cons_snapshot, &buf->prod_snapshot, handle); if (ret) return ret; ret = lib_ring_buffer_get_subbuf(buf, buf->cons_snapshot, handle); return ret; } static inline void lib_ring_buffer_put_next_subbuf(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { lib_ring_buffer_put_subbuf(buf, handle); lib_ring_buffer_move_consumer(buf, subbuf_align(buf->cons_snapshot, shmp(handle, buf->backend.chan)), handle); } extern void channel_reset(struct channel *chan); extern void lib_ring_buffer_reset(struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle); static inline unsigned long lib_ring_buffer_get_offset(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return v_read(config, &buf->offset); } static inline unsigned long lib_ring_buffer_get_consumed(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return uatomic_read(&buf->consumed); } /* * Must call lib_ring_buffer_is_finalized before reading counters (memory * ordering enforced with respect to trace teardown). */ static inline int lib_ring_buffer_is_finalized(const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { int finalized = CMM_ACCESS_ONCE(buf->finalized); /* * Read finalized before counters. */ cmm_smp_rmb(); return finalized; } static inline int lib_ring_buffer_channel_is_finalized(const struct channel *chan) { return chan->finalized; } static inline int lib_ring_buffer_channel_is_disabled(const struct channel *chan) { return uatomic_read(&chan->record_disabled); } static inline unsigned long lib_ring_buffer_get_read_data_size( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf, struct lttng_ust_shm_handle *handle) { return subbuffer_get_read_data_size(config, &buf->backend, handle); } static inline unsigned long lib_ring_buffer_get_records_count( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return v_read(config, &buf->records_count); } static inline unsigned long lib_ring_buffer_get_records_overrun( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return v_read(config, &buf->records_overrun); } static inline unsigned long lib_ring_buffer_get_records_lost_full( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return v_read(config, &buf->records_lost_full); } static inline unsigned long lib_ring_buffer_get_records_lost_wrap( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return v_read(config, &buf->records_lost_wrap); } static inline unsigned long lib_ring_buffer_get_records_lost_big( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return v_read(config, &buf->records_lost_big); } static inline unsigned long lib_ring_buffer_get_records_read( const struct lttng_ust_lib_ring_buffer_config *config, struct lttng_ust_lib_ring_buffer *buf) { return v_read(config, &buf->backend.records_read); } #endif /* _LTTNG_RING_BUFFER_FRONTEND_H */ lttng-ust-2.4.0/CodingStyle0000644000175000017500000000046412167611342012555 00000000000000LTTng-UST Coding Style The coding style used for this project follows the the Linux kernel guide lines. Please refer to: - Linux kernel Documentation/CodingStyle document for details, - Linux kernel scripts/checkpatch.pl for a script which verify the patch coding style. Mathieu Desnoyers, May 30, 2012 lttng-ust-2.4.0/config.h.in0000644000175000017500000000663012304153131012420 00000000000000/* config.h.in. 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then \ for script in $(EXTRA_DIST); do \ cp -f $(srcdir)/$$script $(builddir); \ done; \ fi clean-local: @if [ x"$(srcdir)" != x"$(builddir)" ]; then \ for script in $(EXTRA_DIST); do \ rm -f $(builddir)/$$script; \ done; \ fi # 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: lttng-ust-2.4.0/tools/lttng-gen-tp0000755000175000017500000002371212304144741014012 00000000000000#!/usr/bin/python # # Copyright (c) 2012 Yannick Brosseau # # 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; only version 2 # of the License. # # 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, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. from __future__ import print_function import sys import getopt import re import os import subprocess class Usage(Exception): def __init__(self, msg): self.msg = msg class HeaderFile: HEADER_TPL=""" #undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER {providerName} #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./{headerFilename}" #if !defined({includeGuard}) || defined(TRACEPOINT_HEADER_MULTI_READ) #define {includeGuard} #include """ FOOTER_TPL=""" #endif /* {includeGuard} */ #include """ def __init__(self, filename, template): self.outputFilename = filename self.template = template def write(self): outputFile = open(self.outputFilename,"w") # Include guard macro will be created by uppercasing the filename and # replacing all non alphanumeric characters with '_' includeGuard = re.sub('[^0-9a-zA-Z]', '_', self.outputFilename.upper()) outputFile.write(HeaderFile.HEADER_TPL.format(providerName=self.template.domain, includeGuard = includeGuard, headerFilename = self.outputFilename)) outputFile.write(self.template.text) outputFile.write(HeaderFile.FOOTER_TPL.format(includeGuard = includeGuard)) outputFile.close() class CFile: FILE_TPL=""" #define TRACEPOINT_CREATE_PROBES /* * The header containing our TRACEPOINT_EVENTs. */ #define TRACEPOINT_DEFINE #include "{headerFilename}" """ def __init__(self, filename, template): self.outputFilename = filename self.template = template def write(self): outputFile = open(self.outputFilename,"w") headerFilename = self.outputFilename.replace(".c",".h") outputFile.write(CFile.FILE_TPL.format( headerFilename = headerFilename)) outputFile.close() class ObjFile: def __init__(self, filename, template): self.outputFilename = filename self.template = template def _detectCC(self): cc = "" if 'CC' in os.environ: cc = os.environ['CC'] try: subprocess.call(cc, stdout=subprocess.PIPE, stderr=subprocess.PIPE) except OSError as msg: print("Invalid CC environment variable") cc = "" else: # Try c first, if that fails try gcc try: useCC = True subprocess.call("cc", stdout=subprocess.PIPE, stderr=subprocess.PIPE) except OSError as msg: useCC = False if useCC: cc = "cc" else: try: useGCC = True subprocess.call("gcc", stdout=subprocess.PIPE, stderr=subprocess.PIPE) except OSError as msg: useGCC = False if useGCC: cc = "gcc" return cc def write(self): cFilename = self.outputFilename.replace(".o",".c") cc = self._detectCC() if cc == "": raise RuntimeError("No C Compiler detected") if 'CPPFLAGS' in os.environ: cppflags = " " + os.environ['CPPFLAGS'] else: cppflags = "" if 'CFLAGS' in os.environ: cflags = " " + os.environ['CFLAGS'] else: cflags = "" if 'LDFLAGS' in os.environ: ldflags = " " + os.environ['LDFLAGS'] else: ldflags = "" command = cc + " -c" + cppflags + cflags + ldflags + " -I. -llttng-ust" + " -o " + self.outputFilename + " " + cFilename if verbose: print("Compile command: " + command) subprocess.call(command.split()) class TemplateFile: def __init__(self, filename): self.domain = "" self.inputFilename = filename self.parseTemplate() def parseTemplate(self): f = open(self.inputFilename,"r") self.text = f.read() #Remove # comments (from input and output file) but keep # #include in the output file removeComments = re.compile("#[^include].*$",flags=re.MULTILINE) self.text = removeComments.sub("",self.text) # Remove #include directive from the parsed text removePreprocess = re.compile("#.*$",flags=re.MULTILINE) noPreprocess = removePreprocess.sub("", self.text) #Remove // comments removeLineComment = re.compile("\/\/.*$",flags=re.MULTILINE) nolinecomment = removeLineComment.sub("", noPreprocess) #Remove all spaces and lines cleantext = re.sub("\s*","",nolinecomment) #Remove multine C style comments nocomment = re.sub("/\*.*?\*/","",cleantext) entries = re.split("TRACEPOINT_.*?",nocomment) for entry in entries: if entry != '': decomp = re.findall("(\w*?)\((\w*?),(\w*?),", entry) typea = decomp[0][0] domain = decomp[0][1] name = decomp[0][2] if self.domain == "": self.domain = domain else: if self.domain != domain: print("Warning: different domain provided (%s,%s)" % (self.domain, domain)) verbose=False usage=""" lttng-gen-tp - Generate the LTTng-UST header and source based on a simple template usage: lttng-gen-tp TEMPLATE_FILE [-o OUTPUT_FILE][-o OUTPUT_FILE] If no OUTPUT_FILE is given, the .h and .c file will be generated. (The basename of the template file with be used for the generated file. for example sample.tp will generate sample.h, sample.c and sample.o) When using the -o option, the OUTPUT_FILE must end with either .h, .c or .o The -o option can be repeated multiple times. The template file must contains TRACEPOINT_EVENT and TRACEPOINT_LOGLEVEL as per defined in the lttng/tracepoint.h file. See the lttng-ust(3) man page for more details on the format. """ def main(argv=None): if argv is None: argv = sys.argv try: try: opts, args = getopt.gnu_getopt(argv[1:], "ho:av", ["help","verbose"]) except getopt.error as msg: raise Usage(msg) except Usage as err: print(err.msg, file=sys.stderr) print("for help use --help", file=sys.stderr) return 2 outputNames = [] for o, a in opts: if o in ("-h", "--help"): print(usage) return(0) if o in ("-o",""): outputNames.append(a) if o in ("-a",""): all = True if o in ("-v", "--verbose"): global verbose verbose = True try: if len(args) == 0: raise Usage("No template file given") except Usage as err: print(err.msg, file=sys.stderr) print("for help use --help", file=sys.stderr) return 2 doCFile = None doHeader = None doObj = None headerFilename = None cFilename = None objFilename = None if len(outputNames) > 0: if len(args) > 1: print("Cannot process more than one input if you specify an output") return(3) for outputName in outputNames: if outputName[-2:] == ".h": doHeader = True headerFilename = outputName elif outputName[-2:] == ".c": doCFile = True cFilename = outputName elif outputName[-2:] == ".o": doObj = True objFilename = outputName else: print("output file type unsupported") return(4) else: doHeader = True doCFile = True doObj = True # process arguments for arg in args: if arg[-3:] != ".tp": print(arg + " does not end in .tp. Skipping.") continue tpl = None try: tpl = TemplateFile(arg) except IOError as args: print("Cannot read input file " + args.filename + " " + args.strerror) return -1 try: if doHeader: if headerFilename: curFilename = headerFilename else: curFilename = re.sub("\.tp$",".h",arg) doth = HeaderFile(curFilename, tpl) doth.write() if doCFile: if cFilename: curFilename = cFilename else: curFilename = re.sub("\.tp$",".c",arg) dotc = CFile(curFilename, tpl) dotc.write() if doObj: if objFilename: curFilename = objFilename else: curFilename = re.sub("\.tp$",".o",arg) dotobj = ObjFile(curFilename, tpl) dotobj.write() except IOError as args: print("Cannot write output file " + args.filename + " " + args.strerror) return -1 if __name__ == "__main__": sys.exit(main()) lttng-ust-2.4.0/tests/0000755000175000017500000000000012304153162011616 500000000000000lttng-ust-2.4.0/tests/unit_tests0000644000175000017500000000005112304151532013655 00000000000000snprintf/test_snprintf java-jul/test_jul lttng-ust-2.4.0/tests/run.sh0000755000175000017500000000154612275157353012724 00000000000000#!/bin/bash # # Copyright (C) 2013 - Christian Babeux # # 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; only version 2 # of the License. # # 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # [ -z "$1" ] && echo "Error: No testlist. Please specify a testlist to run." && exit 1 prove --merge --exec '' - < $1 lttng-ust-2.4.0/tests/README0000644000175000017500000000030112275157353012425 00000000000000Using the ust test suite. Running ./run.sh unit_tests runs all the tests once. Running ./test_loop runs the test in a loop. 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See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "ust_snprintf.h" #include "tap.h" int main() { char buf[100]; char *expected; char test_fmt_str[] = "header %d, %s, %03d, '%3$*d'"; char escaped_test_fmt_str[] = "header %%d, %%s, %%03d, '%%3$*d'"; plan_tests(1); expected = "header 9999, hello, 005, ' 9'"; ust_safe_snprintf(buf, 99, test_fmt_str, 9999, "hello", 5, 9); char test_desc_fmt_str[] = "Got expected output string with format string \"%s\""; char test_desc[sizeof(escaped_test_fmt_str) + sizeof(test_desc_fmt_str) - 1]; sprintf(test_desc, test_desc_fmt_str, escaped_test_fmt_str); ok(strcmp(buf, expected) == 0, test_desc); return 0; } lttng-ust-2.4.0/tests/snprintf/test_snprintf0000755000175000017500000000006712275157353016251 00000000000000#!/bin/bash TEST_DIR=$(dirname $0) ./${TEST_DIR}/prog lttng-ust-2.4.0/tests/Makefile.in0000644000175000017500000004554512304153125013617 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in is free software; 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without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define TRACEPOINT_DEFINE #define TRACEPOINT_CREATE_PROBES #include "ust_tests_sameline.h" int main() { tracepoint(ust_tests_sameline, event1); tracepoint(ust_tests_sameline, event2); return 0; } lttng-ust-2.4.0/tests/same_line_tracepoint/README0000644000175000017500000000021412275157353016614 00000000000000Same line tracepoint test ------------------------- This is a build test that verifies multiple tracepoint can be placed on a single line. lttng-ust-2.4.0/tests/same_line_tracepoint/Makefile.am0000644000175000017500000000063612275157353020000 00000000000000AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include -Wsystem-headers noinst_PROGRAMS = same_line_tracepoint same_line_tracepoint_SOURCES = same_line_tracepoint.c ust_tests_sameline.h same_line_tracepoint_LDADD = $(top_builddir)/liblttng-ust/liblttng-ust.la if LTTNG_UST_BUILD_WITH_LIBDL same_line_tracepoint_LDADD += -ldl endif if LTTNG_UST_BUILD_WITH_LIBC_DL same_line_tracepoint_LDADD += -lc endif lttng-ust-2.4.0/tests/same_line_tracepoint/Makefile.in0000644000175000017500000004144512304153125017776 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in is free software; 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IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_tests_sameline, event1, TP_ARGS(), TP_FIELDS() ) TRACEPOINT_LOGLEVEL(ust_tests_sameline, event1, TRACE_CRIT) TRACEPOINT_EVENT(ust_tests_sameline, event2, TP_ARGS(), TP_FIELDS() ) TRACEPOINT_LOGLEVEL(ust_tests_sameline, event2, TRACE_CRIT) #endif /* _TRACEPOINT_UST_TESTS_SAMELINE_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_sameline.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/tests/java-jul/0000755000175000017500000000000012304153162013327 500000000000000lttng-ust-2.4.0/tests/java-jul/Makefile.am0000644000175000017500000000062612304151532015306 00000000000000EXTRA_DIST = test_jul JULTest.java if BUILD_JNI_INTERFACE if HAVE_JAVA_JDK JCC=$(JAVA_JDK)/bin/javac else JCC=javac endif AM_CPPFLAGS = -I$(top_srcdir)/include JUL_jar_file = "$(builddir)/../../liblttng-ust-jul/liblttng-ust-jul.jar" default: all all: JULTest.class clean-local: rm -f *.class JULTest.class: JULTest.java $(JCC) -cp $(JUL_jar_file) -d "$(builddir)" "$(srcdir)/JULTest.java" endif lttng-ust-2.4.0/tests/java-jul/Makefile.in0000644000175000017500000002747112304153125015326 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in is free software; 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TESTCLASS="JULTest" if [ ! -f "$CURDIR/$TESTCLASS.class" ]; then echo "1..0 # Skipped: Java support not build" exit 0 fi java -ea -cp "$CURDIR:$TESTDIR/../liblttng-ust-jul/liblttng-ust-jul.jar" -Djava.library.path="$TESTDIR/../liblttng-ust-jul/.libs" $TESTCLASS lttng-ust-2.4.0/tests/java-jul/JULTest.java0000644000175000017500000000356712304152303015413 00000000000000/* * Copyright (C) 2013 - David Goulet * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License, version 2.1 only, * as published by the Free Software Foundation. * * This library 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ import java.io.IOException; import java.util.concurrent.Semaphore; import java.util.logging.LogManager; import org.lttng.ust.jul.*; public class JULTest { private final static int NUM_TESTS = 5; private static int testCount = 1; /* Singleton agent object. */ private static LTTngAgent agent; private static LTTngLogHandler handler; private static LTTngTCPSessiondClient client; private static Semaphore sem; private static void ok(String desc) { System.out.println("ok " + testCount + " - " + desc); testCount++; } public static void go() throws IOException { handler = new LTTngLogHandler(LogManager.getLogManager()); assert handler.logManager == LogManager.getLogManager(); ok("Log handler logManager is valid"); client = new LTTngTCPSessiondClient("127.0.0.1", sem); assert client != null; ok("TCP client is valid"); client.destroy(); ok("TCP client destroyed"); agent = LTTngAgent.getLTTngAgent(); assert agent != null; ok("LTTngAgent is valid"); agent.dispose(); ok("LTTngAgent disposed"); } public static void main(String args[]) throws Exception { System.out.println("1.." + NUM_TESTS); go(); } } lttng-ust-2.4.0/tests/utils/0000755000175000017500000000000012304153162012756 500000000000000lttng-ust-2.4.0/tests/utils/tap.sh0000755000175000017500000002126712304144741014034 00000000000000#!/bin/bash # # Copyright 2010 Patrick LeBoutillier # # 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 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 . _version='1.01' _plan_set=0 _no_plan=0 _skip_all=0 _test_died=0 _expected_tests=0 _executed_tests=0 _failed_tests=0 TODO= usage(){ cat <<'USAGE' tap-functions: A TAP-producing BASH library PLAN: plan_no_plan plan_skip_all [REASON] plan_tests NB_TESTS TEST: ok RESULT [NAME] okx COMMAND is RESULT EXPECTED [NAME] isnt RESULT EXPECTED [NAME] like RESULT PATTERN [NAME] unlike RESULT PATTERN [NAME] pass [NAME] fail [NAME] SKIP: skip [CONDITION] [REASON] [NB_TESTS=1] skip $feature_not_present "feature not present" 2 || { is $a "a" is $b "b" } TODO: Specify TODO mode by setting $TODO: TODO="not implemented yet" ok $result "some not implemented test" unset TODO OTHER: diag MSG EXAMPLE: #!/bin/bash . tap-functions plan_tests 7 me=$USER is $USER $me "I am myself" like $HOME $me "My home is mine" like "`id`" $me "My id matches myself" /bin/ls $HOME 1>&2 ok $? "/bin/ls $HOME" # Same thing using okx shortcut okx /bin/ls $HOME [[ "`id -u`" != "0" ]] i_am_not_root=$? skip $i_am_not_root "Must be root" || { okx ls /root } TODO="figure out how to become root..." okx [ "$HOME" == "/root" ] unset TODO USAGE exit } opt= set_u= while getopts ":sx" opt ; do case $_opt in u) set_u=1 ;; *) usage ;; esac done shift $(( OPTIND - 1 )) # Don't allow uninitialized variables if requested [[ -n "$set_u" ]] && set -u unset opt set_u # Used to call _cleanup on shell exit trap _exit EXIT plan_no_plan(){ (( _plan_set != 0 )) && "You tried to plan twice!" _plan_set=1 _no_plan=1 return 0 } plan_skip_all(){ local reason=${1:-''} (( _plan_set != 0 )) && _die "You tried to plan twice!" _print_plan 0 "Skip $reason" _skip_all=1 _plan_set=1 _exit 0 return 0 } plan_tests(){ local tests=${1:?} (( _plan_set != 0 )) && _die "You tried to plan twice!" (( tests == 0 )) && _die "You said to run 0 tests! You've got to run something." _print_plan $tests _expected_tests=$tests _plan_set=1 return $tests } _print_plan(){ local tests=${1:?} local directive=${2:-''} echo -n "1..$tests" [[ -n "$directive" ]] && echo -n " # $directive" echo } pass(){ local name=$1 ok 0 "$name" } fail(){ local name=$1 ok 1 "$name" } # This is the workhorse method that actually # prints the tests result. ok(){ local result=${1:?} local name=${2:-''} (( _plan_set == 0 )) && _die "You tried to run a test without a plan! Gotta have a plan." _executed_tests=$(( $_executed_tests + 1 )) if [[ -n "$name" ]] ; then if _matches "$name" "^[0-9]+$" ; then diag " You named your test '$name'. You shouldn't use numbers for your test names." diag " Very confusing." fi fi if (( result != 0 )) ; then echo -n "not " _failed_tests=$(( _failed_tests + 1 )) fi echo -n "ok $_executed_tests" if [[ -n "$name" ]] ; then local ename=${name//\#/\\#} echo -n " - $ename" fi if [[ -n "$TODO" ]] ; then echo -n " # TODO $TODO" ; if (( result != 0 )) ; then _failed_tests=$(( _failed_tests - 1 )) fi fi echo if (( result != 0 )) ; then local file='tap-functions' local func= local line= local i=0 local bt=$(caller $i) while _matches "$bt" "tap-functions$" ; do i=$(( $i + 1 )) bt=$(caller $i) done local backtrace= eval $(caller $i | (read line func file ; echo "backtrace=\"$file:$func() at line $line.\"")) local t= [[ -n "$TODO" ]] && t="(TODO) " if [[ -n "$name" ]] ; then diag " Failed ${t}test '$name'" diag " in $backtrace" else diag " Failed ${t}test in $backtrace" fi fi return $result } okx(){ local command="$@" local line= diag "Output of '$command':" "$@" | while read line ; do diag "$line" done ok ${PIPESTATUS[0]} "$command" } _equals(){ local result=${1:?} local expected=${2:?} if [[ "$result" == "$expected" ]] ; then return 0 else return 1 fi } # Thanks to Aaron Kangas for the patch to allow regexp matching # under bash < 3. _bash_major_version=${BASH_VERSION%%.*} _matches(){ local result=${1:?} local pattern=${2:?} if [[ -z "$result" || -z "$pattern" ]] ; then return 1 else if (( _bash_major_version >= 3 )) ; then [[ "$result" =~ "$pattern" ]] else echo "$result" | egrep -q "$pattern" fi fi } _is_diag(){ local result=${1:?} local expected=${2:?} diag " got: '$result'" diag " expected: '$expected'" } is(){ local result=${1:?} local expected=${2:?} local name=${3:-''} _equals "$result" "$expected" (( $? == 0 )) ok $? "$name" local r=$? (( r != 0 )) && _is_diag "$result" "$expected" return $r } isnt(){ local result=${1:?} local expected=${2:?} local name=${3:-''} _equals "$result" "$expected" (( $? != 0 )) ok $? "$name" local r=$? (( r != 0 )) && _is_diag "$result" "$expected" return $r } like(){ local result=${1:?} local pattern=${2:?} local name=${3:-''} _matches "$result" "$pattern" (( $? == 0 )) ok $? "$name" local r=$? (( r != 0 )) && diag " '$result' doesn't match '$pattern'" return $r } unlike(){ local result=${1:?} local pattern=${2:?} local name=${3:-''} _matches "$result" "$pattern" (( $? != 0 )) ok $? "$name" local r=$? 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Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ #define _GNU_SOURCE #include #include #include #include #include "tap.h" static int no_plan = 0; static int skip_all = 0; static int have_plan = 0; static unsigned int test_count = 0; /* Number of tests that have been run */ static unsigned int e_tests = 0; /* Expected number of tests to run */ static unsigned int failures = 0; /* Number of tests that failed */ static char *todo_msg = NULL; static char *todo_msg_fixed = "libtap malloc issue"; static int todo = 0; static int test_died = 0; /* Encapsulate the pthread code in a conditional. In the absence of libpthread the code does nothing */ #ifdef HAVE_LIBPTHREAD #include static pthread_mutex_t M = PTHREAD_MUTEX_INITIALIZER; # define LOCK pthread_mutex_lock(&M); # define UNLOCK pthread_mutex_unlock(&M); #else # define LOCK # define UNLOCK #endif static void _expected_tests(unsigned int); static void _tap_init(void); static void _cleanup(void); /* * Generate a test result. * * ok -- boolean, indicates whether or not the test passed. * test_name -- the name of the test, may be NULL * test_comment -- a comment to print afterwards, may be NULL */ unsigned int _gen_result(int ok, const char *func, char *file, unsigned int line, char *test_name, ...) { va_list ap; char *local_test_name = NULL; char *c; int name_is_digits; LOCK; test_count++; /* Start by taking the test name and performing any printf() expansions on it */ if(test_name != NULL) { va_start(ap, test_name); if (vasprintf(&local_test_name, test_name, ap) == -1) { local_test_name = NULL; } va_end(ap); /* Make sure the test name contains more than digits and spaces. Emit an error message and exit if it does */ if(local_test_name) { name_is_digits = 1; for(c = local_test_name; *c != '\0'; c++) { if(!isdigit(*c) && !isspace(*c)) { name_is_digits = 0; break; } } if(name_is_digits) { diag(" You named your test '%s'. You shouldn't use numbers for your test names.", local_test_name); diag(" Very confusing."); } } } if(!ok) { printf("not "); failures++; } printf("ok %d", test_count); if(test_name != NULL) { printf(" - "); /* Print the test name, escaping any '#' characters it might contain */ if(local_test_name != NULL) { flockfile(stdout); for(c = local_test_name; *c != '\0'; c++) { if(*c == '#') fputc('\\', stdout); fputc((int)*c, stdout); } funlockfile(stdout); } else { /* vasprintf() failed, use a fixed message */ printf("%s", todo_msg_fixed); } } /* If we're in a todo_start() block then flag the test as being TODO. todo_msg should contain the message to print at this point. If it's NULL then asprintf() failed, and we should use the fixed message. This is not counted as a failure, so decrement the counter if the test failed. */ if(todo) { printf(" # TODO %s", todo_msg ? todo_msg : todo_msg_fixed); if(!ok) failures--; } printf("\n"); if(!ok) { if(getenv("HARNESS_ACTIVE") != NULL) fputs("\n", stderr); diag(" Failed %stest (%s:%s() at line %d)", todo ? "(TODO) " : "", file, func, line); } free(local_test_name); UNLOCK; /* We only care (when testing) that ok is positive, but here we specifically only want to return 1 or 0 */ return ok ? 1 : 0; } /* * Initialise the TAP library. Will only do so once, however many times it's * called. */ void _tap_init(void) { static int run_once = 0; if(!run_once) { atexit(_cleanup); /* stdout needs to be unbuffered so that the output appears in the same place relative to stderr output as it does with Test::Harness */ setbuf(stdout, 0); run_once = 1; } } /* * Note that there's no plan. */ int plan_no_plan(void) { LOCK; _tap_init(); if(have_plan != 0) { fprintf(stderr, "You tried to plan twice!\n"); test_died = 1; UNLOCK; exit(255); } have_plan = 1; no_plan = 1; UNLOCK; return 1; } /* * Note that the plan is to skip all tests */ int plan_skip_all(char *reason) { LOCK; _tap_init(); skip_all = 1; printf("1..0"); if(reason != NULL) printf(" # Skip %s", reason); printf("\n"); UNLOCK; exit(0); } /* * Note the number of tests that will be run. */ int plan_tests(unsigned int tests) { LOCK; _tap_init(); if(have_plan != 0) { fprintf(stderr, "You tried to plan twice!\n"); test_died = 1; UNLOCK; exit(255); } if(tests == 0) { fprintf(stderr, "You said to run 0 tests! You've got to run something.\n"); test_died = 1; UNLOCK; exit(255); } have_plan = 1; _expected_tests(tests); UNLOCK; return e_tests; } unsigned int diag(char *fmt, ...) { va_list ap; fputs("# ", stderr); va_start(ap, fmt); vfprintf(stderr, fmt, ap); va_end(ap); fputs("\n", stderr); return 0; } void _expected_tests(unsigned int tests) { printf("1..%d\n", tests); e_tests = tests; } int skip(unsigned int n, char *fmt, ...) { va_list ap; char *skip_msg = NULL; LOCK; va_start(ap, fmt); if (asprintf(&skip_msg, fmt, ap) == -1) { skip_msg = NULL; } va_end(ap); while(n-- > 0) { test_count++; printf("ok %d # skip %s\n", test_count, skip_msg != NULL ? skip_msg : "libtap():malloc() failed"); } free(skip_msg); UNLOCK; return 1; } void todo_start(char *fmt, ...) { va_list ap; LOCK; va_start(ap, fmt); if (vasprintf(&todo_msg, fmt, ap) == -1) { todo_msg = NULL; } va_end(ap); todo = 1; UNLOCK; } void todo_end(void) { LOCK; todo = 0; free(todo_msg); UNLOCK; } int exit_status(void) { int r; LOCK; /* If there's no plan, just return the number of failures */ if(no_plan || !have_plan) { UNLOCK; return failures; } /* Ran too many tests? Return the number of tests that were run that shouldn't have been */ if(e_tests < test_count) { r = test_count - e_tests; UNLOCK; return r; } /* Return the number of tests that failed + the number of tests that weren't run */ r = failures + e_tests - test_count; UNLOCK; return r; } /* * Cleanup at the end of the run, produce any final output that might be * required. */ void _cleanup(void) { LOCK; /* If plan_no_plan() wasn't called, and we don't have a plan, and we're not skipping everything, then something happened before we could produce any output */ if(!no_plan && !have_plan && !skip_all) { diag("Looks like your test died before it could output anything."); UNLOCK; return; } if(test_died) { diag("Looks like your test died just after %d.", test_count); UNLOCK; return; } /* No plan provided, but now we know how many tests were run, and can print the header at the end */ if(!skip_all && (no_plan || !have_plan)) { printf("1..%d\n", test_count); } if((have_plan && !no_plan) && e_tests < test_count) { diag("Looks like you planned %d %s but ran %d extra.", e_tests, e_tests == 1 ? "test" : "tests", test_count - e_tests); UNLOCK; return; } if((have_plan || !no_plan) && e_tests > test_count) { diag("Looks like you planned %d %s but only ran %d.", e_tests, e_tests == 1 ? "test" : "tests", test_count); UNLOCK; return; } if(failures) diag("Looks like you failed %d %s of %d.", failures, failures == 1 ? "test" : "tests", test_count); UNLOCK; } lttng-ust-2.4.0/tests/utils/tap.h0000644000175000017500000000617612304144741013650 00000000000000/*- * Copyright (c) 2004 Nik Clayton * 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. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ /* '## __VA_ARGS__' is a gcc'ism. C99 doesn't allow the token pasting and requires the caller to add the final comma if they've ommitted the optional arguments */ #ifdef __GNUC__ # define ok(e, test, ...) ((e) ? \ _gen_result(1, __func__, __FILE__, __LINE__, \ test, ## __VA_ARGS__) : \ _gen_result(0, __func__, __FILE__, __LINE__, \ test, ## __VA_ARGS__)) # define ok1(e) ((e) ? \ _gen_result(1, __func__, __FILE__, __LINE__, "%s", #e) : \ _gen_result(0, __func__, __FILE__, __LINE__, "%s", #e)) # define pass(test, ...) ok(1, test, ## __VA_ARGS__); # define fail(test, ...) ok(0, test, ## __VA_ARGS__); # define skip_start(test, n, fmt, ...) \ do { \ if((test)) { \ skip(n, fmt, ## __VA_ARGS__); \ continue; \ } #elif __STDC_VERSION__ >= 199901L /* __GNUC__ */ # define ok(e, ...) ((e) ? \ _gen_result(1, __func__, __FILE__, __LINE__, \ __VA_ARGS__) : \ _gen_result(0, __func__, __FILE__, __LINE__, \ __VA_ARGS__)) # define ok1(e) ((e) ? \ _gen_result(1, __func__, __FILE__, __LINE__, "%s", #e) : \ _gen_result(0, __func__, __FILE__, __LINE__, "%s", #e)) # define pass(...) ok(1, __VA_ARGS__); # define fail(...) ok(0, __VA_ARGS__); # define skip_start(test, n, ...) \ do { \ if((test)) { \ skip(n, __VA_ARGS__); \ continue; \ } #else /* __STDC_VERSION__ */ # error "Needs gcc or C99 compiler for variadic macros." #endif /* __STDC_VERSION__ */ #define skip_end() } while(0); unsigned int _gen_result(int, const char *, char *, unsigned int, char *, ...); int plan_no_plan(void); int plan_skip_all(char *); int plan_tests(unsigned int); unsigned int diag(char *, ...); int skip(unsigned int, char *, ...); void todo_start(char *, ...); void todo_end(void); int exit_status(void); lttng-ust-2.4.0/tests/hello.cxx/0000755000175000017500000000000012304153162013522 500000000000000lttng-ust-2.4.0/tests/hello.cxx/README0000644000175000017500000000030112275157353014331 00000000000000This is a "hello world" application used to verify that an instrumented program written in C++ can be built successfully. Only enabled if a C++ build environment is detected during configure. lttng-ust-2.4.0/tests/hello.cxx/tp-cpp.cpp0000644000175000017500000000231712304144741015357 00000000000000/* * tp.cpp * * Copyright (c) 2011 Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define TRACEPOINT_CREATE_PROBES #include "ust_tests_hello.h" lttng-ust-2.4.0/tests/hello.cxx/Makefile.am0000644000175000017500000000051612304144741015503 00000000000000AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include -Wsystem-headers noinst_PROGRAMS = hello hello_SOURCES = hello.cpp tp-cpp.cpp ust_tests_hello.h hello_LDADD = $(top_builddir)/liblttng-ust/liblttng-ust.la if LTTNG_UST_BUILD_WITH_LIBDL hello_LDADD += -ldl endif if LTTNG_UST_BUILD_WITH_LIBC_DL hello_LDADD += -lc endif lttng-ust-2.4.0/tests/hello.cxx/Makefile.in0000644000175000017500000004253212304153125015514 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in is free software; 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IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_tests_hello, tptest, TP_ARGS(int, anint, int, netint, long *, values, char *, text, size_t, textlen, double, doublearg, float, floatarg), TP_FIELDS( ctf_integer(int, intfield, anint) ctf_integer_hex(int, intfield2, anint) ctf_integer(long, longfield, anint) ctf_integer_network(int, netintfield, netint) ctf_integer_network_hex(int, netintfieldhex, netint) ctf_array(long, arrfield1, values, 3) ctf_array_text(char, arrfield2, text, 10) ctf_sequence(char, seqfield1, text, size_t, textlen) ctf_sequence_text(char, seqfield2, text, size_t, textlen) ctf_string(stringfield, text) ctf_float(float, floatfield, floatarg) ctf_float(double, doublefield, doublearg) ) ) TRACEPOINT_EVENT(ust_tests_hello, tptest_sighandler, TP_ARGS(), TP_FIELDS() ) #endif /* _TRACEPOINT_UST_TESTS_HELLO_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_hello.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/tests/hello.cxx/hello.cpp0000644000175000017500000000431211670132347015260 00000000000000/* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #define TRACEPOINT_DEFINE #include "ust_tests_hello.h" void inthandler(int sig) { printf("in SIGUSR1 handler\n"); tracepoint(ust_tests_hello, tptest_sighandler); } int init_int_handler(void) { int result; struct sigaction act; memset(&act, 0, sizeof(act)); result = sigemptyset(&act.sa_mask); if (result == -1) { perror("sigemptyset"); return -1; } act.sa_handler = inthandler; act.sa_flags = SA_RESTART; /* Only defer ourselves. Also, try to restart interrupted * syscalls to disturb the traced program as little as possible. */ result = sigaction(SIGUSR1, &act, NULL); if (result == -1) { perror("sigaction"); return -1; } return 0; } int main(int argc, char **argv) { int i, netint; long values[] = { 1, 2, 3 }; char text[10] = "test"; double dbl = 2.0; float flt = 2222.0; int delay = 0; init_int_handler(); if (argc == 2) delay = atoi(argv[1]); fprintf(stderr, "Hello, World!\n"); sleep(delay); fprintf(stderr, "Tracing... "); for (i = 0; i < 1000000; i++) { netint = htonl(i); tracepoint(ust_tests_hello, tptest, i, netint, values, text, strlen(text), dbl, flt); //usleep(100000); } fprintf(stderr, " done.\n"); return 0; } lttng-ust-2.4.0/tests/test_loop0000755000175000017500000000026212275157353013511 00000000000000#!/bin/bash DIR=$(dirname $0) while [ 0 ]; do $DIR/run.sh $DIR/unit_tests if [ "$?" != "0" ]; then break; fi done echo "$0: ********* STOPPED BECAUSE OF ERROR *********" lttng-ust-2.4.0/tests/benchmark/0000755000175000017500000000000012304153162013550 500000000000000lttng-ust-2.4.0/tests/benchmark/test_benchmark0000755000175000017500000000167312304144741016421 00000000000000#!/bin/bash CURDIR=$(dirname $0)/ TESTDIR=$CURDIR/.. source $TESTDIR/utils/tap.sh plan_tests 1 : ${ITERS:=20} : ${NR_EVENTS:=7000000} : ${NR_CPUS:=1} : ${TIME:="./$CURDIR/ptime"} : ${PROG_NOTRACING:="./$CURDIR/bench1 $NR_CPUS $NR_EVENTS"} : ${PROG_TRACING:="./$CURDIR/bench2 $NR_CPUS $NR_EVENTS"} CMD_NOTRACING="$TIME '$PROG_NOTRACING >/dev/null 2>&1'" CMD_TRACING="$TIME '$PROG_TRACING >/dev/null 2>&1'" time_notrace=0 for i in $(seq $ITERS); do echo 3 >/proc/sys/vm/drop_caches time_notrace="$time_notrace+$(sh -c "$CMD_NOTRACING")" done lttng-sessiond -d --no-kernel lttng -q create lttng -q enable-event -u -a lttng -q start time_trace=0 for i in $(seq $ITERS); do echo 3 >/proc/sys/vm/drop_caches time_trace="$time_trace+$(sh -c "$CMD_TRACING")" done lttng -q stop lttng -q destroy pass "Trace benchmark" diag "Average tracing overhead per event is $(echo "scale=6;( ($time_trace) - ($time_notrace) ) / $ITERS / $NR_EVENTS" | bc -l)s" lttng-ust-2.4.0/tests/benchmark/README0000644000175000017500000000035412304144741014355 00000000000000To run the benchmark: ./test_benchmark You can specify the number of iterations, events and threads by setting environment variables ITERS, NR_EVENTS, NR_CPUS respectively: ITERS=10 NR_EVENTS=10000 NR_CPUS=4 ./test_benchmark lttng-ust-2.4.0/tests/benchmark/Makefile.am0000644000175000017500000000111212304144741015522 00000000000000AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include -Wsystem-headers noinst_PROGRAMS = bench1 bench2 bench1_SOURCES = bench.c tp.c ust_tests_benchmark.h bench1_LDADD = $(top_builddir)/liblttng-ust/liblttng-ust.la bench2_SOURCES = bench.c tp.c ust_tests_benchmark.h bench2_LDADD = $(top_builddir)/liblttng-ust/liblttng-ust.la bench2_CFLAGS = -DTRACING dist_noinst_SCRIPTS = test_benchmark ptime extra_DIST = README if LTTNG_UST_BUILD_WITH_LIBDL bench1_LDADD += -ldl bench2_LDADD += -ldl endif if LTTNG_UST_BUILD_WITH_LIBC_DL bench1_LDADD += -lc bench2_LDADD += -lc endif lttng-ust-2.4.0/tests/benchmark/tp.c0000644000175000017500000000227512304144741014270 00000000000000/* * tp.c * * Copyright (c) 2013 Zifei Tong * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define TRACEPOINT_CREATE_PROBES #include "ust_tests_benchmark.h" lttng-ust-2.4.0/tests/benchmark/ust_tests_benchmark.h0000644000175000017500000000325512304144741017720 00000000000000#undef TRACEPOINT_PROVIDER #define TRACEPOINT_PROVIDER ust_tests_benchmark #if !defined(_TRACEPOINT_UST_TESTS_BENCHMARK_H) || defined(TRACEPOINT_HEADER_MULTI_READ) #define _TRACEPOINT_UST_TESTS_BENCHMARK_H /* * Copyright (C) 2013 Zifei Tong * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include TRACEPOINT_EVENT(ust_tests_benchmark, tpbench, TP_ARGS(int, value), TP_FIELDS( ctf_integer(int, event, value) ) ) #endif /* _TRACEPOINT_UST_TESTS_BENCHMARK_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_benchmark.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/tests/benchmark/Makefile.in0000644000175000017500000005167212304153125015547 00000000000000# Makefile.in generated by automake 1.11.6 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in 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; 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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. * * 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #define _GNU_SOURCE #include #include #include #include #include #include #ifdef TRACING #define TRACEPOINT_DEFINE #include "ust_tests_benchmark.h" #endif static int nr_cpus; static unsigned long nr_events; void do_stuff(void) { int v; FILE *file; v = 1; file = fopen("/dev/null", "a"); fprintf(file, "%d", v); fclose(file); time(NULL); #ifdef TRACING tracepoint(ust_tests_benchmark, tpbench, v); #endif } void *function(void *arg) { unsigned long i; for(i = 0; i < nr_events; i++) { do_stuff(); } return NULL; } void usage(char **argv) { printf("Usage: %s nr_cpus nr_events\n", argv[0]); } int main(int argc, char **argv) { void *retval; int i; if (argc < 3) { usage(argv); exit(1); } nr_cpus = atoi(argv[1]); printf("using %d processor(s)\n", nr_cpus); nr_events = atol(argv[2]); printf("using %ld events per cpu\n", nr_events); pthread_t thread[nr_cpus]; for (i = 0; i < nr_cpus; i++) { if (pthread_create(&thread[i], NULL, function, NULL)) { fprintf(stderr, "thread create %d failed\n", i); exit(1); } } for (i = 0; i < nr_cpus; i++) { if (pthread_join(thread[i], &retval)) { fprintf(stderr, "thread join %d failed\n", i); exit(1); } } return 0; } lttng-ust-2.4.0/tests/hello/0000755000175000017500000000000012304153162012721 500000000000000lttng-ust-2.4.0/tests/hello/README0000644000175000017500000000015212275157353013534 00000000000000This is a "hello world" application used to verify that an instrumented program can be built successfully.lttng-ust-2.4.0/tests/hello/Makefile.am0000644000175000017500000000056212275157353014715 00000000000000AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include -Wsystem-headers noinst_PROGRAMS = hello hello_SOURCES = hello.c tp.c ust_tests_hello.h hello_LDADD = $(top_builddir)/liblttng-ust/liblttng-ust.la hello_CFLAGS = -Werror=old-style-definition if LTTNG_UST_BUILD_WITH_LIBDL hello_LDADD += -ldl endif if LTTNG_UST_BUILD_WITH_LIBC_DL hello_LDADD += -lc endif lttng-ust-2.4.0/tests/hello/tp.c0000644000175000017500000000231512262611531013433 00000000000000/* * tp.c * * Copyright (c) 2011 Mathieu Desnoyers * * 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. 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IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include TRACEPOINT_EVENT(ust_tests_hello, tptest, TP_ARGS(int, anint, int, netint, long *, values, char *, text, size_t, textlen, double, doublearg, float, floatarg, bool, boolarg), TP_FIELDS( ctf_integer(int, intfield, anint) ctf_integer_hex(int, intfield2, anint) ctf_integer(long, longfield, anint) ctf_integer_network(int, netintfield, netint) ctf_integer_network_hex(int, netintfieldhex, netint) ctf_array(long, arrfield1, values, 3) ctf_array_text(char, arrfield2, text, 10) ctf_sequence(char, seqfield1, text, size_t, textlen) ctf_sequence_text(char, seqfield2, text, size_t, textlen) ctf_string(stringfield, text) ctf_float(float, floatfield, floatarg) ctf_float(double, doublefield, doublearg) ctf_integer(bool, boolfield, boolarg) ctf_integer_nowrite(int, filterfield, anint) ) ) TRACEPOINT_EVENT(ust_tests_hello, tptest_sighandler, TP_ARGS(), TP_FIELDS() ) #endif /* _TRACEPOINT_UST_TESTS_HELLO_H */ #undef TRACEPOINT_INCLUDE #define TRACEPOINT_INCLUDE "./ust_tests_hello.h" /* This part must be outside ifdef protection */ #include lttng-ust-2.4.0/tests/hello/hello.c0000644000175000017500000000442212262611531014114 00000000000000/* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #define TRACEPOINT_DEFINE #include "ust_tests_hello.h" void inthandler(int sig) { printf("in SIGUSR1 handler\n"); tracepoint(ust_tests_hello, tptest_sighandler); } int init_int_handler(void) { int result; struct sigaction act; memset(&act, 0, sizeof(act)); result = sigemptyset(&act.sa_mask); if (result == -1) { perror("sigemptyset"); return -1; } act.sa_handler = inthandler; act.sa_flags = SA_RESTART; /* Only defer ourselves. Also, try to restart interrupted * syscalls to disturb the traced program as little as possible. */ result = sigaction(SIGUSR1, &act, NULL); if (result == -1) { perror("sigaction"); return -1; } return 0; } int main(int argc, char **argv) { int i, netint; long values[] = { 1, 2, 3 }; char text[10] = "test"; double dbl = 2.0; float flt = 2222.0; int delay = 0; bool mybool = 123; /* should print "1" */ init_int_handler(); if (argc == 2) delay = atoi(argv[1]); fprintf(stderr, "Hello, World!\n"); sleep(delay); fprintf(stderr, "Tracing... "); for (i = 0; i < 1000000; i++) { netint = htonl(i); tracepoint(ust_tests_hello, tptest, i, netint, values, text, strlen(text), dbl, flt, mybool); //usleep(100000); } fprintf(stderr, " done.\n"); return 0; } lttng-ust-2.4.0/configure.ac0000644000175000017500000002561712304153121012670 00000000000000# -*- Autoconf -*- # Process this file with autoconf to produce a configure script. AC_INIT([lttng-ust],[2.4.0],[mathieu dot desnoyers at efficios dot com]) # Following the numbering scheme proposed by libtool for the library version # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html # This is the library version of liblttng-ust. AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [0:0:0]) # note: remember to update tracepoint.h dlopen() to match this version # number. TODO: eventually automate by exporting the major number. # This is the library version of liblttng-ust-ctl, used internally by # liblttng-ust, lttng-sessiond, and lttng-consumerd. AC_SUBST([LTTNG_UST_CTL_LIBRARY_VERSION], [2:0:0]) AC_CONFIG_AUX_DIR([config]) AC_CANONICAL_TARGET AC_CANONICAL_HOST AC_CONFIG_MACRO_DIR([config]) AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip]) m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AC_CONFIG_SRCDIR([include/lttng/tracepoint.h]) # Configuration options, which will be installed in the config.h AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h]) AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.]) AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h]) # Compute minor/major/patchlevel version numbers AC_PROG_SED major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/') minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/') patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/') AC_SUBST([MAJOR_VERSION], [$major_version]) AC_SUBST([MINOR_VERSION], [$minor_version]) AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version]) AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number]) AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number]) AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number]) version_name="Époque Opaque" version_description="The Époque Opaque is a black IPA from Trou du Diable brewery. The nose is eerily reminiscent of the coffee crisp candy from of our childhood. These strong mocha accents are present on the palate, which are quickly subdued by Japanese and Australian hops leading to a final state of satisfaction enjoyable for any fan of bitter beer." AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name]) AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description"], [UST version description]) AC_PROG_GREP # libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321. AC_ARG_ENABLE(libtool-linkdep-fixup, AS_HELP_STRING([--disable-libtool-linkdep-fixup], [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]), libtool_fixup=$enableval, libtool_fixup=yes) AS_IF([test "x$libtool_fixup" = "xyes"], [ libtool_m4="$srcdir/config/libtool.m4" libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)" AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4]) libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4) AS_IF([test $libtool_flag_pattern_count -ne 0], [ AC_MSG_RESULT([$libtool_flag_pattern_count]) AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown]) sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4 ], [ AC_MSG_RESULT([none]) ]) ]) AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"]) # Checks for programs. AC_PROG_CC AC_PROG_CXX AC_PROG_MAKE_SET LT_INIT # rw_PROG_CXX_WORKS # Check whether the C++ compiler works. AC_CACHE_CHECK([whether the C++ compiler works], [rw_cv_prog_cxx_works], [AC_LANG_PUSH([C++]) AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [check_cxx_designated_initializers=yes], [rw_cv_prog_cxx_works=no]) if test "$check_cxx_designated_initializers" = "yes"; then AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ struct foo { int a; int b; }; void fct(void) { struct foo f = { .a = 0, .b = 1 }; } ]])],[ rw_cv_prog_cxx_works=yes ],[ rw_cv_prog_cxx_works=no ]) fi AC_LANG_POP([C++])]) AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"]) ## Checks for libraries. AC_CHECK_LIB([dl], [dlopen], [ have_libdl=yes ], [ #libdl not found, check for dlopen in libc. AC_CHECK_LIB([c], [dlopen], [ have_libc_dl=yes ], [ AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.]) ]) ]) AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"]) AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"]) AC_CHECK_LIB([pthread], [pthread_create]) # Checks for header files. #AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h]) # Checks for typedefs, structures, and compiler characteristics. AC_C_INLINE #AC_TYPE_INT16_T #AC_TYPE_INT32_T #AC_TYPE_INT64_T #AC_TYPE_INT8_T #AC_TYPE_PID_T #AC_TYPE_SIZE_T #AC_TYPE_SSIZE_T #AC_TYPE_UINT16_T #AC_TYPE_UINT32_T #AC_TYPE_UINT64_T #AC_TYPE_UINT8_T #AC_CHECK_TYPES([ptrdiff_t]) # Checks for library functions. AC_FUNC_MALLOC AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf]) CFLAGS="-Wall $CFLAGS" # URCU # urcu - check if we just find the headers it out of the box. AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location. This error can also occur when the liburcu package's configure script has not been run.])]) # urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation # Part of Userspace RCU library 0.7.2 or better. AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])]) AC_MSG_CHECKING([caa_likely()]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #include void fct(void) { if (caa_likely(1)) { } } ]])],[ AC_MSG_RESULT([yes]) ],[ AC_MSG_RESULT([no]) AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better]) ]) # urcu - check that URCU lib is available to compilation AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])]) # urcu - check that URCU lib is at least version 0.6 AC_CHECK_LIB([urcu-bp], [call_rcu_bp], [], [AC_MSG_ERROR([liburcu 0.6 or newer is needed, please update your version or use [LDFLAGS]=-Ldir to specify the right location.])]) AC_MSG_CHECKING([host system alignment requirements]) case $host_cpu in changequote(,)dnl i[3456]86) changequote([,])dnl ;; x86_64) ;; amd64) ;; powerpc) ;; ppc64) ;; powerpc64) ;; s390) NO_UNALIGNED_ACCESS=1 ;; s390x) NO_UNALIGNED_ACCESS=1 ;; arm*) NO_UNALIGNED_ACCESS=1 ;; mips*) NO_UNALIGNED_ACCESS=1 ;; tile*) NO_UNALIGNED_ACCESS=1 ;; *) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;; esac if test x$NO_UNALIGNED_ACCESS = x ; then AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1]) fi # Set compile flags to java include files if given AC_ARG_WITH([java-jdk], [AS_HELP_STRING([--with-java-jdk=DIR],[use the Java JDK in DIR. Ex : $JAVA_HOME.])], [JAVA_JDK=$withval], [JAVA_JDK=""] ) AM_CONDITIONAL([HAVE_JAVA_JDK], [test $JAVA_JDK], [Java JDK path]) AC_SUBST([JAVA_JDK]) AS_IF([test $JAVA_JDK],[ AS_IF([test -d $JAVA_JDK],[ AC_MSG_RESULT([using Java includes in $JAVA_SDK]) SUBDIRS=`find $JAVA_JDK/include -type d` CPPFLAGS+=" " CPPFLAGS+=`for x in $SUBDIRS; do echo -n "-I$x "; done` CPPFLAGS+=" " ],[ AC_MSG_ERROR(Unable to find Java include files in $JAVA_JDK) ]) ]) # Check for JNI header files if requested AC_ARG_WITH([jni-interface], [AS_HELP_STRING([--with-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])], [jni_interface=$withval], [jni_interface=no] ) AS_IF([test "x$jni_interface" = "xyes"],[ AC_CHECK_HEADERS([jni.h],[],[ AC_MSG_ERROR([missing jni.h Make sure Sun Java, OpenJDK or GCJ is installed and that this header file exists in the system path. Use the --with-java-jdk=DIR flag to point to your Java include files, or disable the JNI interface.]) ]) ]) AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"]) # sdt.h integration AC_ARG_WITH([sdt], [AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])], [with_sdt=$withval], [with_sdt="no"] ) AS_IF([test "x$with_sdt" = "xyes"],[ AC_MSG_CHECKING([STAP_PROBEV()]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #define SDT_USE_VARIADIC #include void fct(void) { STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10); } ]])],[ AC_MSG_RESULT([yes]) AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1]) ],[ AC_MSG_RESULT([no]) AC_MSG_ERROR([The sdt.h integration was requested but the STAP_PROBEV define cannot be used. 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you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include #include #include #include #include #include #include "usterr.h" #include pid_t fork(void) { static pid_t (*plibc_func)(void) = NULL; sigset_t sigset; pid_t retval; if (plibc_func == NULL) { plibc_func = dlsym(RTLD_NEXT, "fork"); if (plibc_func == NULL) { fprintf(stderr, "libustfork: unable to find \"fork\" symbol\n"); errno = ENOSYS; return -1; } } ust_before_fork(&sigset); /* Do the real fork */ retval = plibc_func(); if (retval == 0) { /* child */ ust_after_fork_child(&sigset); } else { ust_after_fork_parent(&sigset); } return retval; } int daemon(int nochdir, int noclose) { static int (*plibc_func)(int nochdir, int noclose) = NULL; sigset_t sigset; int retval; if (plibc_func == NULL) { plibc_func = dlsym(RTLD_NEXT, "daemon"); if (plibc_func == NULL) { fprintf(stderr, "libustfork: unable to find \"daemon\" symbol\n"); errno = ENOSYS; return -1; } } ust_before_fork(&sigset); /* Do the real daemon call */ retval = plibc_func(nochdir, noclose); if (retval == 0) { /* child, parent called _exit() directly */ ust_after_fork_child(&sigset); } else { /* on error in the parent */ ust_after_fork_parent(&sigset); } return retval; } #ifdef __linux__ struct user_desc; struct ustfork_clone_info { int (*fn)(void *); void *arg; sigset_t sigset; }; static int clone_fn(void *arg) { struct ustfork_clone_info *info = (struct ustfork_clone_info *) arg; /* clone is now done and we are in child */ ust_after_fork_child(&info->sigset); return info->fn(info->arg); } int clone(int (*fn)(void *), void *child_stack, int flags, void *arg, ...) { static int (*plibc_func)(int (*fn)(void *), void *child_stack, int flags, void *arg, pid_t *ptid, struct user_desc *tls, pid_t *ctid) = NULL; /* var args */ pid_t *ptid; struct user_desc *tls; pid_t *ctid; /* end of var args */ va_list ap; int retval; va_start(ap, arg); ptid = va_arg(ap, pid_t *); tls = va_arg(ap, struct user_desc *); ctid = va_arg(ap, pid_t *); va_end(ap); if (plibc_func == NULL) { plibc_func = dlsym(RTLD_NEXT, "clone"); if (plibc_func == NULL) { fprintf(stderr, "libustfork: unable to find \"clone\" symbol.\n"); errno = ENOSYS; return -1; } } if (flags & CLONE_VM) { /* * Creating a thread, no need to intervene, just pass on * the arguments. */ retval = plibc_func(fn, child_stack, flags, arg, ptid, tls, ctid); } else { /* Creating a real process, we need to intervene. */ struct ustfork_clone_info info = { .fn = fn, .arg = arg }; ust_before_fork(&info.sigset); retval = plibc_func(clone_fn, child_stack, flags, &info, ptid, tls, ctid); /* The child doesn't get here. */ ust_after_fork_parent(&info.sigset); } return retval; } #elif defined (__FreeBSD__) pid_t rfork(int flags) { static pid_t (*plibc_func)(void) = NULL; sigset_t sigset; pid_t retval; if (plibc_func == NULL) { plibc_func = dlsym(RTLD_NEXT, "rfork"); if (plibc_func == NULL) { fprintf(stderr, "libustfork: unable to find \"rfork\" symbol\n"); errno = ENOSYS; return -1; } } ust_before_fork(&sigset); /* Do the real rfork */ retval = plibc_func(); if (retval == 0) { /* child */ ust_after_fork_child(&sigset); } else { ust_after_fork_parent(&sigset); } return retval; } /* * On BSD, no need to override vfork, because it runs in the context of * the parent, with parent waiting until execve or exit is executed in * the child. */ #else #warning "Unknown OS. You might want to ensure that fork/clone/vfork/fork handling is complete." #endif lttng-ust-2.4.0/include/0000755000175000017500000000000012304153161012076 500000000000000lttng-ust-2.4.0/include/helper.h0000644000175000017500000000253512275157353013471 00000000000000#ifndef _LTTNG_UST_HELPER_H #define _LTTNG_UST_HELPER_H /* * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include static inline __attribute__((always_inline)) void *zmalloc(size_t len) { return calloc(len, 1); } #define max_t(type, x, y) \ ({ \ type __max1 = (x); \ type __max2 = (y); \ __max1 > __max2 ? __max1: __max2; \ }) #define min_t(type, x, y) \ ({ \ type __min1 = (x); \ type __min2 = (y); \ __min1 <= __min2 ? __min1: __min2; \ }) #define LTTNG_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) #endif /* _LTTNG_UST_HELPER_H */ lttng-ust-2.4.0/include/usterr-signal-safe.h0000644000175000017500000001046212167611342015714 00000000000000#ifndef _USTERR_SIGNAL_SAFE_H #define _USTERR_SIGNAL_SAFE_H /* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include "lttng/ust-tid.h" enum ust_loglevel { UST_LOGLEVEL_UNKNOWN = 0, UST_LOGLEVEL_NORMAL, UST_LOGLEVEL_DEBUG, }; extern volatile enum ust_loglevel ust_loglevel; void init_usterr(void); static inline int ust_debug(void) { return ust_loglevel == UST_LOGLEVEL_DEBUG; } #ifndef UST_COMPONENT //#error UST_COMPONENT is undefined #define UST_COMPONENT libust #endif /* To stringify the expansion of a define */ #define UST_XSTR(d) UST_STR(d) #define UST_STR(s) #s #define USTERR_MAX_LEN 512 /* We sometimes print in the tracing path, and tracing can occur in * signal handlers, so we must use a print method which is signal safe. */ extern int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...) __attribute__ ((format (printf, 3, 4))); static inline void __attribute__ ((format (printf, 1, 2))) __check_ust_safe_fmt(const char *fmt, ...) { } /* Can't use dynamic allocation. Limit ourselves to USTERR_MAX_LEN chars. */ /* Add end of string in case of buffer overflow. */ #define sigsafe_print_err(fmt, args...) \ do { \ char ____buf[USTERR_MAX_LEN]; \ int ____saved_errno; \ ____saved_errno = errno; /* signal-safety */ \ ust_safe_snprintf(____buf, sizeof(____buf), fmt, ## args); \ ____buf[sizeof(____buf) - 1] = 0; \ patient_write(STDERR_FILENO, ____buf, strlen(____buf)); \ errno = ____saved_errno; /* signal-safety */ \ } while (0) #define UST_STR_COMPONENT UST_XSTR(UST_COMPONENT) #define ERRMSG(fmt, args...) \ do { \ sigsafe_print_err(UST_STR_COMPONENT "[%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" UST_XSTR(__LINE__) ")\n", \ (long) getpid(), \ (long) gettid(), \ ## args, __func__); \ fflush(stderr); \ } while(0) #ifdef LTTNG_UST_DEBUG # define DBG(fmt, args...) ERRMSG(fmt, ## args) # define DBG_raw(fmt, args...) \ do { \ sigsafe_print_err(fmt, ## args); \ fflush(stderr); \ } while(0) #else # define DBG(fmt, args...) \ do { \ if (ust_debug()) \ ERRMSG(fmt, ## args); \ } while (0) # define DBG_raw(fmt, args...) \ do { \ if (ust_debug()) { \ sigsafe_print_err(fmt, ## args); \ fflush(stderr); \ } \ } while(0) #endif #define WARN(fmt, args...) ERRMSG("Warning: " fmt, ## args) #define ERR(fmt, args...) ERRMSG("Error: " fmt, ## args) #define BUG(fmt, args...) 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you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef UST_SNPRINTF #define UST_SNPRINTF #include extern int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap); extern int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...); #endif /* UST_SNPRINTF */ lttng-ust-2.4.0/include/share.h0000644000175000017500000000255512200722032013272 00000000000000#ifndef _LTTNG_SHARE_H #define _LTTNG_SHARE_H /* * Copyright (c) 2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include ssize_t patient_write(int fd, const void *buf, size_t count); ssize_t patient_send(int fd, const void *buf, size_t count, int flags); #endif /* _LTTNG_SHARE_H */ lttng-ust-2.4.0/include/lttng/0000755000175000017500000000000012304153161013226 500000000000000lttng-ust-2.4.0/include/lttng/tracepoint-types.h0000644000175000017500000000300412201172233016623 00000000000000#ifndef _LTTNG_TRACEPOINT_TYPES_H #define _LTTNG_TRACEPOINT_TYPES_H /* * Copyright 2011-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ struct tracepoint_probe { void (*func)(void); void *data; }; #define TRACEPOINT_PADDING 16 struct tracepoint { const char *name; int state; struct tracepoint_probe *probes; int *tracepoint_provider_ref; const char *signature; char padding[TRACEPOINT_PADDING]; }; #endif /* _LTTNG_TRACEPOINT_TYPES_H */ lttng-ust-2.4.0/include/lttng/ust-config.h.in0000644000175000017500000000037712301203343016004 00000000000000/* ust/config.h.in. Manually generated for control over the contained defs. */ /* Use efficient unaligned access. */ #undef LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS /* DTrace/GDB/SystemTap integration via sdt.h */ #undef LTTNG_UST_HAVE_SDT_INTEGRATION lttng-ust-2.4.0/include/lttng/ust-dlfcn.h0000644000175000017500000000461312304151532015222 00000000000000#ifndef _LTTNG_UST_DLFCN_H #define _LTTNG_UST_DLFCN_H /* * lttng/ust-dlfcn.h * * Copyright 2014 (c) - Mathieu Desnoyers * * dlfcn.h compatibility layer. * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifdef _DLFCN_H #error "Please include lttng/ust-dlfcn.h before dlfcn.h." #endif /* _DLFCN_H */ /* * glibc declares dlsym() and dlerror() with __attribute__((leaf)) (see * THROW annotation). Unfortunately, this is not in sync with reality, * as those functions call the memory allocator. Work-around this glibc * bug by declaring our own symbols. * * There has been a similar issue for dlopen() and dlclose(), as * constructors and destructors are called from these functions, so they * are clearly non-leaf. Work-around the issue for those too for older * glibc where these have not been fixed. */ #define dlopen glibc_dlopen_proto_lies_about_leafness #define dlclose glibc_dlclose_proto_lies_about_leafness #define dlsym glibc_dlsym_proto_lies_about_leafness #define dlerror glibc_dlerror_proto_lies_about_leafness #include #undef dlerror #undef dlsym #undef dlclose #undef dlopen extern void *dlopen(__const char *__file, int __mode); extern int dlclose(void *__handle) __nonnull ((1)); extern void *dlsym(void *__restrict __handle, __const char *__restrict __name) __nonnull ((2)); extern char *dlerror(void); #endif /* _LTTNG_UST_DLFCN_H */ lttng-ust-2.4.0/include/lttng/ust-tracepoint-event.h0000644000175000017500000006446512304151532017436 00000000000000/* * Copyright (c) 2011-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #include #include #include #include #include #include #undef tp_list_for_each_entry_rcu #define tp_list_for_each_entry_rcu(pos, head, member) \ for (pos = cds_list_entry(tp_rcu_dereference_bp((head)->next), __typeof__(*pos), member); \ &pos->member != (head); \ pos = cds_list_entry(tp_rcu_dereference_bp(pos->member.next), __typeof__(*pos), member)) /* * TRACEPOINT_EVENT_CLASS declares a class of tracepoints receiving the * same arguments and having the same field layout. * * TRACEPOINT_EVENT_INSTANCE declares an instance of a tracepoint, with * its own provider and name. It refers to a class (template). * * TRACEPOINT_EVENT declared both a class and an instance and does a * direct mapping from the instance to the class. */ #undef TRACEPOINT_EVENT #define TRACEPOINT_EVENT(_provider, _name, _args, _fields) \ TRACEPOINT_EVENT_CLASS(_provider, _name, \ _TP_PARAMS(_args), \ _TP_PARAMS(_fields)) \ TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name, \ _TP_PARAMS(_args)) /* Helpers */ #define _TP_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) #define _tp_max_t(type, x, y) \ ({ \ type __max1 = (x); \ type __max2 = (y); \ __max1 > __max2 ? __max1: __max2; \ }) /* * Stage 0 of tracepoint event generation. * * Check that each TRACEPOINT_EVENT provider argument match the * TRACEPOINT_PROVIDER by creating dummy callbacks. */ /* Reset all macros within TRACEPOINT_EVENT */ #include static inline void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(void) { } #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ __tracepoint_provider_mismatch_##_provider(); #undef TRACEPOINT_EVENT_INSTANCE #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ __tracepoint_provider_mismatch_##_provider(); static inline void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void) { #include TRACEPOINT_INCLUDE } /* * Stage 0.1 of tracepoint event generation. * * Check that each TRACEPOINT_EVENT provider:name does not exceed the * tracepoint name length limit. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #undef TRACEPOINT_EVENT_INSTANCE #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ static const char \ __tp_name_len_check##_provider##___##_name[LTTNG_UST_SYM_NAME_LEN] \ __attribute__((unused)) = \ #_provider ":" #_name; #include TRACEPOINT_INCLUDE /* * Stage 1 of tracepoint event generation. * * Create event field type metadata section. * Each event produce an array of fields. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #include #include #undef _ctf_integer_ext #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ { \ .name = #_item, \ .type = __type_integer(_type, _byte_order, _base, none),\ .nowrite = _nowrite, \ }, #undef _ctf_float #define _ctf_float(_type, _item, _src, _nowrite) \ { \ .name = #_item, \ .type = __type_float(_type), \ .nowrite = _nowrite, \ }, #undef _ctf_array_encoded #define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _nowrite) \ { \ .name = #_item, \ .type = \ { \ .atype = atype_array, \ .u = \ { \ .array = \ { \ .elem_type = __type_integer(_type, BYTE_ORDER, 10, _encoding), \ .length = _length, \ } \ } \ }, \ .nowrite = _nowrite, \ }, #undef _ctf_sequence_encoded #define _ctf_sequence_encoded(_type, _item, _src, \ _length_type, _src_length, _encoding, _nowrite) \ { \ .name = #_item, \ .type = \ { \ .atype = atype_sequence, \ .u = \ { \ .sequence = \ { \ .length_type = __type_integer(_length_type, BYTE_ORDER, 10, none), \ .elem_type = __type_integer(_type, BYTE_ORDER, 10, _encoding), \ }, \ }, \ }, \ .nowrite = _nowrite, \ }, #undef _ctf_string #define _ctf_string(_item, _src, _nowrite) \ { \ .name = #_item, \ .type = \ { \ .atype = atype_string, \ .u = \ { \ .basic = { .string = { .encoding = lttng_encode_UTF8 } } \ }, \ }, \ .nowrite = _nowrite, \ }, #undef TP_FIELDS #define TP_FIELDS(...) __VA_ARGS__ /* Only one used in this phase */ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ static const struct lttng_event_field __event_fields___##_provider##___##_name[] = { \ _fields \ }; #include TRACEPOINT_INCLUDE /* * Stage 2 of tracepoint event generation. * * Create probe callback prototypes. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #undef TP_ARGS #define TP_ARGS(...) __VA_ARGS__ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ static void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args)); #include TRACEPOINT_INCLUDE /* * Stage 3 of tracepoint event generation. * * Create static inline function that calculates event size. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #include #undef _ctf_integer_ext #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \ __event_len += sizeof(_type); #undef _ctf_float #define _ctf_float(_type, _item, _src, _nowrite) \ __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \ __event_len += sizeof(_type); #undef _ctf_array_encoded #define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _nowrite) \ __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \ __event_len += sizeof(_type) * (_length); #undef _ctf_sequence_encoded #define _ctf_sequence_encoded(_type, _item, _src, _length_type, \ _src_length, _encoding, _nowrite) \ __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_length_type)); \ __event_len += sizeof(_length_type); \ __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \ __dynamic_len[__dynamic_len_idx] = (_src_length); \ __event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx]; \ __dynamic_len_idx++; #undef _ctf_string #define _ctf_string(_item, _src, _nowrite) \ __event_len += __dynamic_len[__dynamic_len_idx++] = strlen(_src) + 1; #undef TP_ARGS #define TP_ARGS(...) __VA_ARGS__ #undef TP_FIELDS #define TP_FIELDS(...) __VA_ARGS__ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ static inline lttng_ust_notrace \ size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS_DATA_PROTO(_args)); \ static inline \ size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS_DATA_PROTO(_args)) \ { \ size_t __event_len = 0; \ unsigned int __dynamic_len_idx = 0; \ \ if (0) \ (void) __dynamic_len_idx; /* don't warn if unused */ \ _fields \ return __event_len; \ } #include TRACEPOINT_INCLUDE /* * Stage 3.1 of tracepoint event generation. * * Create static inline function that layout the filter stack data. * We make both write and nowrite data available to the filter. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #include #include #undef _ctf_integer_ext #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ if (lttng_is_signed_type(_type)) { \ int64_t __ctf_tmp_int64; \ switch (sizeof(_type)) { \ case 1: \ { \ union { _type t; int8_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_int64 = (int64_t) __tmp.v; \ break; \ } \ case 2: \ { \ union { _type t; int16_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_int64 = (int64_t) __tmp.v; \ break; \ } \ case 4: \ { \ union { _type t; int32_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_int64 = (int64_t) __tmp.v; \ break; \ } \ case 8: \ { \ union { _type t; int64_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_int64 = (int64_t) __tmp.v; \ break; \ } \ default: \ abort(); \ }; \ memcpy(__stack_data, &__ctf_tmp_int64, sizeof(int64_t)); \ } else { \ uint64_t __ctf_tmp_uint64; \ switch (sizeof(_type)) { \ case 1: \ { \ union { _type t; uint8_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ break; \ } \ case 2: \ { \ union { _type t; uint16_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ break; \ } \ case 4: \ { \ union { _type t; uint32_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ break; \ } \ case 8: \ { \ union { _type t; uint64_t v; } __tmp = { (_type) (_src) }; \ __ctf_tmp_uint64 = (uint64_t) __tmp.v; \ break; \ } \ default: \ abort(); \ }; \ memcpy(__stack_data, &__ctf_tmp_uint64, sizeof(uint64_t)); \ } \ __stack_data += sizeof(int64_t); #undef _ctf_float #define _ctf_float(_type, _item, _src, _nowrite) \ { \ double __ctf_tmp_double = (double) (_type) (_src); \ memcpy(__stack_data, &__ctf_tmp_double, sizeof(double)); \ __stack_data += sizeof(double); \ } #undef _ctf_array_encoded #define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _nowrite) \ { \ unsigned long __ctf_tmp_ulong = (unsigned long) (_length); \ const void *__ctf_tmp_ptr = (_src); \ memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \ __stack_data += sizeof(unsigned long); \ memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void **)); \ __stack_data += sizeof(void **); \ } #undef _ctf_sequence_encoded #define _ctf_sequence_encoded(_type, _item, _src, _length_type, \ _src_length, _encoding, _nowrite) \ { \ unsigned long __ctf_tmp_ulong = (unsigned long) (_src_length); \ const void *__ctf_tmp_ptr = (_src); \ memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \ __stack_data += sizeof(unsigned long); \ memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void **)); \ __stack_data += sizeof(void **); \ } #undef _ctf_string #define _ctf_string(_item, _src, _nowrite) \ { \ const void *__ctf_tmp_ptr = (_src); \ memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void **)); \ __stack_data += sizeof(void **); \ } #undef TP_ARGS #define TP_ARGS(...) __VA_ARGS__ #undef TP_FIELDS #define TP_FIELDS(...) __VA_ARGS__ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ static inline \ void __event_prepare_filter_stack__##_provider##___##_name(char *__stack_data,\ _TP_ARGS_DATA_PROTO(_args)) \ { \ _fields \ } #include TRACEPOINT_INCLUDE /* * Stage 4 of tracepoint event generation. * * Create static inline function that calculates event payload alignment. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #include #undef _ctf_integer_ext #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type)); #undef _ctf_float #define _ctf_float(_type, _item, _src, _nowrite) \ __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type)); #undef _ctf_array_encoded #define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _nowrite) \ __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type)); #undef _ctf_sequence_encoded #define _ctf_sequence_encoded(_type, _item, _src, _length_type, \ _src_length, _encoding, _nowrite) \ __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_length_type)); \ __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type)); #undef _ctf_string #define _ctf_string(_item, _src, _nowrite) #undef TP_ARGS #define TP_ARGS(...) __VA_ARGS__ #undef TP_FIELDS #define TP_FIELDS(...) __VA_ARGS__ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ static inline lttng_ust_notrace \ size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args)); \ static inline \ size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args)) \ { \ size_t __event_align = 1; \ _fields \ return __event_align; \ } #include TRACEPOINT_INCLUDE /* * Stage 5 of tracepoint event generation. * * Create the probe function. This function calls event size calculation * and writes event data into the buffer. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #include #undef _ctf_integer_ext #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, _nowrite) \ { \ _type __tmp = (_src); \ lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__tmp));\ __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp));\ } #undef _ctf_float #define _ctf_float(_type, _item, _src, _nowrite) \ { \ _type __tmp = (_src); \ lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__tmp));\ __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp));\ } #undef _ctf_array_encoded #define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _nowrite) \ lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \ __chan->ops->event_write(&__ctx, _src, sizeof(_type) * (_length)); #undef _ctf_sequence_encoded #define _ctf_sequence_encoded(_type, _item, _src, _length_type, \ _src_length, _encoding, _nowrite) \ { \ _length_type __tmpl = __stackvar.__dynamic_len[__dynamic_len_idx]; \ lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_length_type));\ __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type));\ } \ lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \ __chan->ops->event_write(&__ctx, _src, \ sizeof(_type) * __get_dynamic_len(dest)); #undef _ctf_string #define _ctf_string(_item, _src, _nowrite) \ lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(*(_src))); \ __chan->ops->event_write(&__ctx, _src, __get_dynamic_len(dest)); /* Beware: this get len actually consumes the len value */ #undef __get_dynamic_len #define __get_dynamic_len(field) __stackvar.__dynamic_len[__dynamic_len_idx++] #undef TP_ARGS #define TP_ARGS(...) __VA_ARGS__ #undef TP_FIELDS #define TP_FIELDS(...) __VA_ARGS__ /* * For state dump, check that "session" argument (mandatory) matches the * session this event belongs to. Ensures that we write state dump data only * into the started session, not into all sessions. */ #undef _TP_SESSION_CHECK #ifdef TP_SESSION_CHECK #define _TP_SESSION_CHECK(session, csession) (session == csession) #else /* TP_SESSION_CHECK */ #define _TP_SESSION_CHECK(session, csession) 1 #endif /* TP_SESSION_CHECK */ /* * Using twice size for filter stack data to hold size and pointer for * each field (worse case). For integers, max size required is 64-bit. * Same for double-precision floats. Those fit within * 2*sizeof(unsigned long) for all supported architectures. * Perform UNION (||) of filter runtime list. */ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ static lttng_ust_notrace \ void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args)); \ static \ void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args)) \ { \ struct lttng_event *__event = (struct lttng_event *) __tp_data; \ struct lttng_channel *__chan = __event->chan; \ struct lttng_ust_lib_ring_buffer_ctx __ctx; \ size_t __event_len, __event_align; \ size_t __dynamic_len_idx = 0; \ union { \ size_t __dynamic_len[_TP_ARRAY_SIZE(__event_fields___##_provider##___##_name)]; \ char __filter_stack_data[2 * sizeof(unsigned long) * _TP_ARRAY_SIZE(__event_fields___##_provider##___##_name)]; \ } __stackvar; \ int __ret; \ \ if (0) \ (void) __dynamic_len_idx; /* don't warn if unused */ \ if (!_TP_SESSION_CHECK(session, __chan->session)) \ return; \ if (caa_unlikely(!CMM_ACCESS_ONCE(__chan->session->active))) \ return; \ if (caa_unlikely(!CMM_ACCESS_ONCE(__chan->enabled))) \ return; \ if (caa_unlikely(!CMM_ACCESS_ONCE(__event->enabled))) \ return; \ if (caa_unlikely(!TP_RCU_LINK_TEST())) \ return; \ if (caa_unlikely(!cds_list_empty(&__event->bytecode_runtime_head))) { \ struct lttng_bytecode_runtime *bc_runtime; \ int __filter_record = __event->has_enablers_without_bytecode; \ \ __event_prepare_filter_stack__##_provider##___##_name(__stackvar.__filter_stack_data, \ _TP_ARGS_DATA_VAR(_args)); \ tp_list_for_each_entry_rcu(bc_runtime, &__event->bytecode_runtime_head, node) { \ if (caa_unlikely(bc_runtime->filter(bc_runtime, \ __stackvar.__filter_stack_data) & LTTNG_FILTER_RECORD_FLAG)) \ __filter_record = 1; \ } \ if (caa_likely(!__filter_record)) \ return; \ } \ __event_len = __event_get_size__##_provider##___##_name(__stackvar.__dynamic_len, \ _TP_ARGS_DATA_VAR(_args)); \ __event_align = __event_get_align__##_provider##___##_name(_TP_ARGS_VAR(_args)); \ lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \ __event_align, -1, __chan->handle); \ __ctx.ip = __builtin_return_address(0); \ __ret = __chan->ops->event_reserve(&__ctx, __event->id); \ if (__ret < 0) \ return; \ _fields \ __chan->ops->event_commit(&__ctx); \ } #include TRACEPOINT_INCLUDE #undef __get_dynamic_len /* * Stage 5.1 of tracepoint event generation. * * Create probe signature */ /* Reset all macros within TRACEPOINT_EVENT */ #include #undef TP_ARGS #define TP_ARGS(...) __VA_ARGS__ #define _TP_EXTRACT_STRING2(...) #__VA_ARGS__ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \ const char __tp_event_signature___##_provider##___##_name[] = \ _TP_EXTRACT_STRING2(_args); #include TRACEPOINT_INCLUDE #undef _TP_EXTRACT_STRING2 /* * Stage 6 of tracepoint event generation. * * Tracepoint loglevel mapping definition generation. We generate a * symbol for each mapping for a provider/event to ensure at most a 1 to * 1 mapping between events and loglevels. If the symbol is repeated, * the compiler will complain. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #undef TRACEPOINT_LOGLEVEL #define TRACEPOINT_LOGLEVEL(__provider, __name, __loglevel) \ static const int _loglevel_value___##__provider##___##__name = __loglevel; \ static const int *_loglevel___##__provider##___##__name = \ &_loglevel_value___##__provider##___##__name; #include TRACEPOINT_INCLUDE /* * Stage 6.1 of tracepoint event generation. * * Tracepoint UML URI info. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #undef TRACEPOINT_MODEL_EMF_URI #define TRACEPOINT_MODEL_EMF_URI(__provider, __name, __uri) \ static const char *_model_emf_uri___##__provider##___##__name = __uri; #include TRACEPOINT_INCLUDE /* * Stage 7.1 of tracepoint event generation. * * Create events description structures. We use a weakref because * loglevels are optional. If not declared, the event will point to the * a loglevel that contains NULL. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #undef TRACEPOINT_EVENT_INSTANCE #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ static const int * \ __ref_loglevel___##_provider##___##_name \ __attribute__((weakref ("_loglevel___" #_provider "___" #_name))); \ static const char * \ __ref_model_emf_uri___##_provider##___##_name \ __attribute__((weakref ("_model_emf_uri___" #_provider "___" #_name)));\ const struct lttng_event_desc __event_desc___##_provider##_##_name = { \ .name = #_provider ":" #_name, \ .probe_callback = (void (*)(void)) &__event_probe__##_provider##___##_template,\ .ctx = NULL, \ .fields = __event_fields___##_provider##___##_template, \ .nr_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_template), \ .loglevel = &__ref_loglevel___##_provider##___##_name, \ .signature = __tp_event_signature___##_provider##___##_template, \ .u = { .ext = { .model_emf_uri = &__ref_model_emf_uri___##_provider##___##_name } }, \ }; #include TRACEPOINT_INCLUDE /* * Stage 7.2 of tracepoint event generation. * * Create array of events. */ /* Reset all macros within TRACEPOINT_EVENT */ #include #undef TRACEPOINT_EVENT_INSTANCE #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \ &__event_desc___##_provider##_##_name, static const struct lttng_event_desc *_TP_COMBINE_TOKENS(__event_desc___, TRACEPOINT_PROVIDER)[] = { #include TRACEPOINT_INCLUDE }; /* * Stage 8 of tracepoint event generation. * * Create a toplevel descriptor for the whole probe. */ /* non-const because list head will be modified when registered. */ static struct lttng_probe_desc _TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER) = { .provider = __tp_stringify(TRACEPOINT_PROVIDER), .event_desc = _TP_COMBINE_TOKENS(__event_desc___, TRACEPOINT_PROVIDER), .nr_events = _TP_ARRAY_SIZE(_TP_COMBINE_TOKENS(__event_desc___, TRACEPOINT_PROVIDER)), .head = { NULL, NULL }, .lazy_init_head = { NULL, NULL }, .lazy = 0, .major = LTTNG_UST_PROVIDER_MAJOR, .minor = LTTNG_UST_PROVIDER_MINOR, }; static int _TP_COMBINE_TOKENS(__probe_register_refcount___, TRACEPOINT_PROVIDER); /* * Stage 9 of tracepoint event generation. * * Register/unregister probes at module load/unload. * * Generate the constructor as an externally visible symbol for use when * linking the probe statically. * * Register refcount is protected by libc dynamic loader mutex. */ /* Reset all macros within TRACEPOINT_EVENT */ #include static void lttng_ust_notrace __attribute__((constructor)) _TP_COMBINE_TOKENS(__lttng_events_init__, TRACEPOINT_PROVIDER)(void); static void _TP_COMBINE_TOKENS(__lttng_events_init__, TRACEPOINT_PROVIDER)(void) { int ret; if (_TP_COMBINE_TOKENS(__probe_register_refcount___, TRACEPOINT_PROVIDER)++) { return; } /* * __tracepoint_provider_check_ ## TRACEPOINT_PROVIDER() is a * static inline function that ensures every probe PROVIDER * argument match the provider within which they appear. It * calls empty static inline functions, and therefore has no * runtime effect. However, if it detects an error, a linker * error will appear. */ _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(); ret = lttng_probe_register(&_TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER)); if (ret) { fprintf(stderr, "LTTng-UST: Error (%d) while registering tracepoint probe. Duplicate registration of tracepoint probes having the same name is not allowed.\n", ret); abort(); } } static void lttng_ust_notrace __attribute__((destructor)) _TP_COMBINE_TOKENS(__lttng_events_exit__, TRACEPOINT_PROVIDER)(void); static void _TP_COMBINE_TOKENS(__lttng_events_exit__, TRACEPOINT_PROVIDER)(void) { if (--_TP_COMBINE_TOKENS(__probe_register_refcount___, TRACEPOINT_PROVIDER)) { return; } lttng_probe_unregister(&_TP_COMBINE_TOKENS(__probe_desc___, TRACEPOINT_PROVIDER)); } int _TP_COMBINE_TOKENS(__tracepoint_provider_, TRACEPOINT_PROVIDER); lttng-ust-2.4.0/include/lttng/ringbuffer-config.h0000644000175000017500000003146012304151532016717 00000000000000#ifndef _LTTNG_RING_BUFFER_CONFIG_H #define _LTTNG_RING_BUFFER_CONFIG_H /* * lttng/ringbuffer-config.h * * Copyright (C) 2010 - Mathieu Desnoyers * * Ring buffer configuration header. Note: after declaring the standard inline * functions, clients should also include linux/ringbuffer/api.h. * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include "lttng/ust-tracer.h" #include #include #include #include #include "lttng/align.h" #include struct lttng_ust_lib_ring_buffer; struct channel; struct lttng_ust_lib_ring_buffer_config; struct lttng_ust_lib_ring_buffer_ctx; struct lttng_ust_shm_handle; /* * Ring buffer client callbacks. Only used by slow path, never on fast path. * For the fast path, record_header_size(), ring_buffer_clock_read() should be * provided as inline functions too. These may simply return 0 if not used by * the client. */ struct lttng_ust_lib_ring_buffer_client_cb { /* Mandatory callbacks */ /* A static inline version is also required for fast path */ uint64_t (*ring_buffer_clock_read) (struct channel *chan); size_t (*record_header_size) (const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, size_t offset, size_t *pre_header_padding, struct lttng_ust_lib_ring_buffer_ctx *ctx); /* Slow path only, at subbuffer switch */ size_t (*subbuffer_header_size) (void); void (*buffer_begin) (struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc, unsigned int subbuf_idx, struct lttng_ust_shm_handle *handle); void (*buffer_end) (struct lttng_ust_lib_ring_buffer *buf, uint64_t tsc, unsigned int subbuf_idx, unsigned long data_size, struct lttng_ust_shm_handle *handle); /* Optional callbacks (can be set to NULL) */ /* Called at buffer creation/finalize */ int (*buffer_create) (struct lttng_ust_lib_ring_buffer *buf, void *priv, int cpu, const char *name, struct lttng_ust_shm_handle *handle); /* * Clients should guarantee that no new reader handle can be opened * after finalize. */ void (*buffer_finalize) (struct lttng_ust_lib_ring_buffer *buf, void *priv, int cpu, struct lttng_ust_shm_handle *handle); /* * Extract header length, payload length and timestamp from event * record. Used by buffer iterators. Timestamp is only used by channel * iterator. */ void (*record_get) (const struct lttng_ust_lib_ring_buffer_config *config, struct channel *chan, struct lttng_ust_lib_ring_buffer *buf, size_t offset, size_t *header_len, size_t *payload_len, uint64_t *timestamp, struct lttng_ust_shm_handle *handle); }; /* * Ring buffer instance configuration. * * Declare as "static const" within the client object to ensure the inline fast * paths can be optimized. * * alloc/sync pairs: * * RING_BUFFER_ALLOC_PER_CPU and RING_BUFFER_SYNC_PER_CPU : * Per-cpu buffers with per-cpu synchronization. Tracing must be performed * with preemption disabled (lib_ring_buffer_get_cpu() and * lib_ring_buffer_put_cpu()). * * RING_BUFFER_ALLOC_PER_CPU and RING_BUFFER_SYNC_GLOBAL : * Per-cpu buffer with global synchronization. Tracing can be performed with * preemption enabled, statistically stays on the local buffers. * * RING_BUFFER_ALLOC_GLOBAL and RING_BUFFER_SYNC_PER_CPU : * Should only be used for buffers belonging to a single thread or protected * by mutual exclusion by the client. Note that periodical sub-buffer switch * should be disabled in this kind of configuration. * * RING_BUFFER_ALLOC_GLOBAL and RING_BUFFER_SYNC_GLOBAL : * Global shared buffer with global synchronization. * * wakeup: * * RING_BUFFER_WAKEUP_BY_TIMER uses per-cpu deferrable timers to poll the * buffers and wake up readers if data is ready. Mainly useful for tracers which * don't want to call into the wakeup code on the tracing path. Use in * combination with "read_timer_interval" channel_create() argument. * * RING_BUFFER_WAKEUP_BY_WRITER directly wakes up readers when a subbuffer is * ready to read. Lower latencies before the reader is woken up. Mainly suitable * for drivers. * * RING_BUFFER_WAKEUP_NONE does not perform any wakeup whatsoever. The client * has the responsibility to perform wakeups. */ #define LTTNG_UST_RING_BUFFER_CONFIG_PADDING 20 enum lttng_ust_lib_ring_buffer_alloc_types { RING_BUFFER_ALLOC_PER_CPU, RING_BUFFER_ALLOC_GLOBAL, }; enum lttng_ust_lib_ring_buffer_sync_types { RING_BUFFER_SYNC_PER_CPU, /* Wait-free */ RING_BUFFER_SYNC_GLOBAL, /* Lock-free */ }; enum lttng_ust_lib_ring_buffer_mode_types { RING_BUFFER_OVERWRITE, /* Overwrite when buffer full */ RING_BUFFER_DISCARD, /* Discard when buffer full */ }; enum lttng_ust_lib_ring_buffer_output_types { RING_BUFFER_SPLICE, RING_BUFFER_MMAP, RING_BUFFER_READ, /* TODO */ RING_BUFFER_ITERATOR, RING_BUFFER_NONE, }; enum lttng_ust_lib_ring_buffer_backend_types { RING_BUFFER_PAGE, RING_BUFFER_VMAP, /* TODO */ RING_BUFFER_STATIC, /* TODO */ }; enum lttng_ust_lib_ring_buffer_oops_types { RING_BUFFER_NO_OOPS_CONSISTENCY, RING_BUFFER_OOPS_CONSISTENCY, }; enum lttng_ust_lib_ring_buffer_ipi_types { RING_BUFFER_IPI_BARRIER, RING_BUFFER_NO_IPI_BARRIER, }; enum lttng_ust_lib_ring_buffer_wakeup_types { RING_BUFFER_WAKEUP_BY_TIMER, /* wake up performed by timer */ RING_BUFFER_WAKEUP_BY_WRITER, /* * writer wakes up reader, * not lock-free * (takes spinlock). */ }; struct lttng_ust_lib_ring_buffer_config { enum lttng_ust_lib_ring_buffer_alloc_types alloc; enum lttng_ust_lib_ring_buffer_sync_types sync; enum lttng_ust_lib_ring_buffer_mode_types mode; enum lttng_ust_lib_ring_buffer_output_types output; enum lttng_ust_lib_ring_buffer_backend_types backend; enum lttng_ust_lib_ring_buffer_oops_types oops; enum lttng_ust_lib_ring_buffer_ipi_types ipi; enum lttng_ust_lib_ring_buffer_wakeup_types wakeup; /* * tsc_bits: timestamp bits saved at each record. * 0 and 64 disable the timestamp compression scheme. */ unsigned int tsc_bits; struct lttng_ust_lib_ring_buffer_client_cb cb; /* * client_type is used by the consumer process (which is in a * different address space) to lookup the appropriate client * callbacks and update the cb pointers. */ int client_type; int _unused1; const struct lttng_ust_lib_ring_buffer_client_cb *cb_ptr; char padding[LTTNG_UST_RING_BUFFER_CONFIG_PADDING]; }; /* * ring buffer context * * Context passed to lib_ring_buffer_reserve(), lib_ring_buffer_commit(), * lib_ring_buffer_try_discard_reserve(), lib_ring_buffer_align_ctx() and * lib_ring_buffer_write(). * * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. */ #define LTTNG_UST_RING_BUFFER_CTX_PADDING \ (24 - sizeof(int) - sizeof(void *)) struct lttng_ust_lib_ring_buffer_ctx { /* input received by lib_ring_buffer_reserve(), saved here. */ struct channel *chan; /* channel */ void *priv; /* client private data */ struct lttng_ust_shm_handle *handle; /* shared-memory handle */ size_t data_size; /* size of payload */ int largest_align; /* * alignment of the largest element * in the payload */ int cpu; /* processor id */ /* output from lib_ring_buffer_reserve() */ struct lttng_ust_lib_ring_buffer *buf; /* * buffer corresponding to processor id * for this channel */ size_t slot_size; /* size of the reserved slot */ unsigned long buf_offset; /* offset following the record header */ unsigned long pre_offset; /* * Initial offset position _before_ * the record is written. Positioned * prior to record header alignment * padding. */ uint64_t tsc; /* time-stamp counter value */ unsigned int rflags; /* reservation flags */ unsigned int padding1; /* padding to realign on pointer */ void *ip; /* caller ip address */ char padding2[LTTNG_UST_RING_BUFFER_CTX_PADDING]; }; /** * lib_ring_buffer_ctx_init - initialize ring buffer context * @ctx: ring buffer context to initialize * @chan: channel * @priv: client private data * @data_size: size of record data payload * @largest_align: largest alignment within data payload types * @cpu: processor id */ static inline lttng_ust_notrace void lib_ring_buffer_ctx_init(struct lttng_ust_lib_ring_buffer_ctx *ctx, struct channel *chan, void *priv, size_t data_size, int largest_align, int cpu, struct lttng_ust_shm_handle *handle); static inline void lib_ring_buffer_ctx_init(struct lttng_ust_lib_ring_buffer_ctx *ctx, struct channel *chan, void *priv, size_t data_size, int largest_align, int cpu, struct lttng_ust_shm_handle *handle) { ctx->chan = chan; ctx->priv = priv; ctx->data_size = data_size; ctx->largest_align = largest_align; ctx->cpu = cpu; ctx->rflags = 0; ctx->handle = handle; ctx->padding1 = 0; ctx->ip = 0; memset(ctx->padding2, 0, LTTNG_UST_RING_BUFFER_CTX_PADDING); } /* * Reservation flags. * * RING_BUFFER_RFLAG_FULL_TSC * * This flag is passed to record_header_size() and to the primitive used to * write the record header. It indicates that the full 64-bit time value is * needed in the record header. If this flag is not set, the record header needs * only to contain "tsc_bits" bit of time value. * * Reservation flags can be added by the client, starting from * "(RING_BUFFER_FLAGS_END << 0)". It can be used to pass information from * record_header_size() to lib_ring_buffer_write_record_header(). */ #define RING_BUFFER_RFLAG_FULL_TSC (1U << 0) #define RING_BUFFER_RFLAG_END (1U << 1) /* * We need to define RING_BUFFER_ALIGN_ATTR so it is known early at * compile-time. We have to duplicate the "config->align" information and the * definition here because config->align is used both in the slow and fast * paths, but RING_BUFFER_ALIGN_ATTR is only available for the client code. */ #ifdef RING_BUFFER_ALIGN # define RING_BUFFER_ALIGN_ATTR /* Default arch alignment */ /* * Calculate the offset needed to align the type. * size_of_type must be non-zero. */ static inline lttng_ust_notrace unsigned int lib_ring_buffer_align(size_t align_drift, size_t size_of_type); static inline unsigned int lib_ring_buffer_align(size_t align_drift, size_t size_of_type) { return offset_align(align_drift, size_of_type); } #else # define RING_BUFFER_ALIGN_ATTR __attribute__((packed)) /* * Calculate the offset needed to align the type. * size_of_type must be non-zero. */ static inline lttng_ust_notrace unsigned int lib_ring_buffer_align(size_t align_drift, size_t size_of_type); static inline unsigned int lib_ring_buffer_align(size_t align_drift, size_t size_of_type) { return 0; } #endif /** * lib_ring_buffer_align_ctx - Align context offset on "alignment" * @ctx: ring buffer context. */ static inline lttng_ust_notrace void lib_ring_buffer_align_ctx(struct lttng_ust_lib_ring_buffer_ctx *ctx, size_t alignment); static inline void lib_ring_buffer_align_ctx(struct lttng_ust_lib_ring_buffer_ctx *ctx, size_t alignment) { ctx->buf_offset += lib_ring_buffer_align(ctx->buf_offset, alignment); } /* * lib_ring_buffer_check_config() returns 0 on success. * Used internally to check for valid configurations at channel creation. */ static inline lttng_ust_notrace int lib_ring_buffer_check_config(const struct lttng_ust_lib_ring_buffer_config *config, unsigned int switch_timer_interval, unsigned int read_timer_interval); static inline int lib_ring_buffer_check_config(const struct lttng_ust_lib_ring_buffer_config *config, unsigned int switch_timer_interval, unsigned int read_timer_interval) { if (config->alloc == RING_BUFFER_ALLOC_GLOBAL && config->sync == RING_BUFFER_SYNC_PER_CPU && switch_timer_interval) return -EINVAL; return 0; } #endif /* _LTTNG_RING_BUFFER_CONFIG_H */ lttng-ust-2.4.0/include/lttng/ust-version.h.in0000644000175000017500000000275312200722032016223 00000000000000#ifndef _LTTNG_UST_VERSION_H #define _LTTNG_UST_VERSION_H /* * lttng/ust-version.h.in. Contains the LTTng-UST versions * * Copyright (c) 2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define LTTNG_UST_MAJOR_VERSION @MAJOR_VERSION@ #define LTTNG_UST_MINOR_VERSION @MINOR_VERSION@ #define LTTNG_UST_PATCHLEVEL_VERSION @PATCHLEVEL_VERSION@ #define LTTNG_UST_VERSION @PACKAGE_VERSION@ #endif /* _LTTNG_UST_VERSION_H */ lttng-ust-2.4.0/include/lttng/tracepoint.h0000644000175000017500000005274012304144741015503 00000000000000#ifndef _LTTNG_TRACEPOINT_H #define _LTTNG_TRACEPOINT_H /* * Copyright 2011-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #include #include #include /* for dlopen */ #include /* for memset */ #include /* for sdt */ #include #ifdef LTTNG_UST_HAVE_SDT_INTEGRATION #define SDT_USE_VARIADIC #include #else #define STAP_PROBEV(...) #endif #ifdef __cplusplus extern "C" { #endif #define tracepoint(provider, name, ...) \ do { \ STAP_PROBEV(provider, name, ## __VA_ARGS__); \ if (caa_unlikely(__tracepoint_##provider##___##name.state)) \ __tracepoint_cb_##provider##___##name(__VA_ARGS__); \ } while (0) #define TP_ARGS(...) __VA_ARGS__ /* * TP_ARGS takes tuples of type, argument separated by a comma. * It can take up to 10 tuples (which means that less than 10 tuples is * fine too). * Each tuple is also separated by a comma. */ #define __TP_COMBINE_TOKENS(_tokena, _tokenb) \ _tokena##_tokenb #define _TP_COMBINE_TOKENS(_tokena, _tokenb) \ __TP_COMBINE_TOKENS(_tokena, _tokenb) #define __TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \ _tokena##_tokenb##_tokenc #define _TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \ __TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) #define __TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \ _tokena##_tokenb##_tokenc##_tokend #define _TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \ __TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) /* * _TP_EXVAR* extract the var names. * _TP_EXVAR1 and _TP_EXDATA_VAR1 are needed for -std=c99. */ #define _TP_EXVAR0() #define _TP_EXVAR1(a) #define _TP_EXVAR2(a,b) b #define _TP_EXVAR4(a,b,c,d) b,d #define _TP_EXVAR6(a,b,c,d,e,f) b,d,f #define _TP_EXVAR8(a,b,c,d,e,f,g,h) b,d,f,h #define _TP_EXVAR10(a,b,c,d,e,f,g,h,i,j) b,d,f,h,j #define _TP_EXVAR12(a,b,c,d,e,f,g,h,i,j,k,l) b,d,f,h,j,l #define _TP_EXVAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) b,d,f,h,j,l,n #define _TP_EXVAR16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) b,d,f,h,j,l,n,p #define _TP_EXVAR18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) b,d,f,h,j,l,n,p,r #define _TP_EXVAR20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) b,d,f,h,j,l,n,p,r,t #define _TP_EXDATA_VAR0() __tp_data #define _TP_EXDATA_VAR1(a) __tp_data #define _TP_EXDATA_VAR2(a,b) __tp_data,b #define _TP_EXDATA_VAR4(a,b,c,d) __tp_data,b,d #define _TP_EXDATA_VAR6(a,b,c,d,e,f) __tp_data,b,d,f #define _TP_EXDATA_VAR8(a,b,c,d,e,f,g,h) __tp_data,b,d,f,h #define _TP_EXDATA_VAR10(a,b,c,d,e,f,g,h,i,j) __tp_data,b,d,f,h,j #define _TP_EXDATA_VAR12(a,b,c,d,e,f,g,h,i,j,k,l) __tp_data,b,d,f,h,j,l #define _TP_EXDATA_VAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) __tp_data,b,d,f,h,j,l,n #define _TP_EXDATA_VAR16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) __tp_data,b,d,f,h,j,l,n,p #define _TP_EXDATA_VAR18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) __tp_data,b,d,f,h,j,l,n,p,r #define _TP_EXDATA_VAR20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) __tp_data,b,d,f,h,j,l,n,p,r,t /* * _TP_EXPROTO* extract tuples of type, var. * _TP_EXPROTO1 and _TP_EXDATA_PROTO1 are needed for -std=c99. */ #define _TP_EXPROTO0() void #define _TP_EXPROTO1(a) void #define _TP_EXPROTO2(a,b) a b #define _TP_EXPROTO4(a,b,c,d) a b,c d #define _TP_EXPROTO6(a,b,c,d,e,f) a b,c d,e f #define _TP_EXPROTO8(a,b,c,d,e,f,g,h) a b,c d,e f,g h #define _TP_EXPROTO10(a,b,c,d,e,f,g,h,i,j) a b,c d,e f,g h,i j #define _TP_EXPROTO12(a,b,c,d,e,f,g,h,i,j,k,l) a b,c d,e f,g h,i j,k l #define _TP_EXPROTO14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) a b,c d,e f,g h,i j,k l,m n #define _TP_EXPROTO16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) a b,c d,e f,g h,i j,k l,m n,o p #define _TP_EXPROTO18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) a b,c d,e f,g h,i j,k l,m n,o p,q r #define _TP_EXPROTO20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) a b,c d,e f,g h,i j,k l,m n,o p,q r,s t #define _TP_EXDATA_PROTO0() void *__tp_data #define _TP_EXDATA_PROTO1(a) void *__tp_data #define _TP_EXDATA_PROTO2(a,b) void *__tp_data,a b #define _TP_EXDATA_PROTO4(a,b,c,d) void *__tp_data,a b,c d #define _TP_EXDATA_PROTO6(a,b,c,d,e,f) void *__tp_data,a b,c d,e f #define _TP_EXDATA_PROTO8(a,b,c,d,e,f,g,h) void *__tp_data,a b,c d,e f,g h #define _TP_EXDATA_PROTO10(a,b,c,d,e,f,g,h,i,j) void *__tp_data,a b,c d,e f,g h,i j #define _TP_EXDATA_PROTO12(a,b,c,d,e,f,g,h,i,j,k,l) void *__tp_data,a b,c d,e f,g h,i j,k l #define _TP_EXDATA_PROTO14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) void *__tp_data,a b,c d,e f,g h,i j,k l,m n #define _TP_EXDATA_PROTO16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p #define _TP_EXDATA_PROTO18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p,q r #define _TP_EXDATA_PROTO20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p,q r,s t /* Preprocessor trick to count arguments. Inspired from sdt.h. */ #define _TP_NARGS(...) __TP_NARGS(__VA_ARGS__, 20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0) #define __TP_NARGS(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12,_13,_14,_15,_16,_17,_18,_19,_20, N, ...) N #define _TP_PROTO_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXPROTO, N)(__VA_ARGS__)) #define _TP_VAR_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXVAR, N)(__VA_ARGS__)) #define _TP_DATA_PROTO_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXDATA_PROTO, N)(__VA_ARGS__)) #define _TP_DATA_VAR_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXDATA_VAR, N)(__VA_ARGS__)) #define _TP_ARGS_PROTO(...) _TP_PROTO_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__) #define _TP_ARGS_VAR(...) _TP_VAR_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__) #define _TP_ARGS_DATA_PROTO(...) _TP_DATA_PROTO_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__) #define _TP_ARGS_DATA_VAR(...) _TP_DATA_VAR_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__) #define _TP_PARAMS(...) __VA_ARGS__ /* * The tracepoint cb is marked always inline so we can distinguish * between caller's ip addresses within the probe using the return * address. */ #define _DECLARE_TRACEPOINT(_provider, _name, ...) \ extern struct tracepoint __tracepoint_##_provider##___##_name; \ static inline __attribute__((always_inline)) lttng_ust_notrace \ void __tracepoint_cb_##_provider##___##_name(_TP_ARGS_PROTO(__VA_ARGS__)); \ static \ void __tracepoint_cb_##_provider##___##_name(_TP_ARGS_PROTO(__VA_ARGS__)) \ { \ struct tracepoint_probe *__tp_probe; \ \ if (caa_unlikely(!TP_RCU_LINK_TEST())) \ return; \ tp_rcu_read_lock_bp(); \ __tp_probe = tp_rcu_dereference_bp(__tracepoint_##_provider##___##_name.probes); \ if (caa_unlikely(!__tp_probe)) \ goto end; \ do { \ void (*__tp_cb)(void) = __tp_probe->func; \ void *__tp_data = __tp_probe->data; \ \ URCU_FORCE_CAST(void (*)(_TP_ARGS_DATA_PROTO(__VA_ARGS__)), __tp_cb) \ (_TP_ARGS_DATA_VAR(__VA_ARGS__)); \ } while ((++__tp_probe)->func); \ end: \ tp_rcu_read_unlock_bp(); \ } \ static inline lttng_ust_notrace \ void __tracepoint_register_##_provider##___##_name(char *name, \ void (*func)(void), void *data); \ static inline \ void __tracepoint_register_##_provider##___##_name(char *name, \ void (*func)(void), void *data) \ { \ __tracepoint_probe_register(name, func, data, \ __tracepoint_##_provider##___##_name.signature); \ } \ static inline lttng_ust_notrace \ void __tracepoint_unregister_##_provider##___##_name(char *name, \ void (*func)(void), void *data); \ static inline \ void __tracepoint_unregister_##_provider##___##_name(char *name, \ void (*func)(void), void *data) \ { \ __tracepoint_probe_unregister(name, func, data); \ } extern int __tracepoint_probe_register(const char *name, void (*func)(void), void *data, const char *signature); extern int __tracepoint_probe_unregister(const char *name, void (*func)(void), void *data); /* * tracepoint dynamic linkage handling (callbacks). Hidden visibility: * shared across objects in a module/main executable. */ struct tracepoint_dlopen { void *liblttngust_handle; int (*tracepoint_register_lib)(struct tracepoint * const *tracepoints_start, int tracepoints_count); int (*tracepoint_unregister_lib)(struct tracepoint * const *tracepoints_start); #ifndef _LGPL_SOURCE void (*rcu_read_lock_sym_bp)(void); void (*rcu_read_unlock_sym_bp)(void); void *(*rcu_dereference_sym_bp)(void *p); #endif }; extern struct tracepoint_dlopen tracepoint_dlopen; #if defined(TRACEPOINT_DEFINE) || defined(TRACEPOINT_CREATE_PROBES) /* * These weak symbols, the constructor, and destructor take care of * registering only _one_ instance of the tracepoints per shared-ojbect * (or for the whole main program). */ int __tracepoint_registered __attribute__((weak, visibility("hidden"))); int __tracepoint_ptrs_registered __attribute__((weak, visibility("hidden"))); struct tracepoint_dlopen tracepoint_dlopen __attribute__((weak, visibility("hidden"))); #ifndef _LGPL_SOURCE static inline void lttng_ust_notrace __tracepoint__init_urcu_sym(void); static inline void __tracepoint__init_urcu_sym(void) { /* * Symbols below are needed by tracepoint call sites and probe * providers. */ if (!tracepoint_dlopen.rcu_read_lock_sym_bp) tracepoint_dlopen.rcu_read_lock_sym_bp = URCU_FORCE_CAST(void (*)(void), dlsym(tracepoint_dlopen.liblttngust_handle, "tp_rcu_read_lock_bp")); if (!tracepoint_dlopen.rcu_read_unlock_sym_bp) tracepoint_dlopen.rcu_read_unlock_sym_bp = URCU_FORCE_CAST(void (*)(void), dlsym(tracepoint_dlopen.liblttngust_handle, "tp_rcu_read_unlock_bp")); if (!tracepoint_dlopen.rcu_dereference_sym_bp) tracepoint_dlopen.rcu_dereference_sym_bp = URCU_FORCE_CAST(void *(*)(void *p), dlsym(tracepoint_dlopen.liblttngust_handle, "tp_rcu_dereference_sym_bp")); } #else static inline void lttng_ust_notrace __tracepoint__init_urcu_sym(void); static inline void __tracepoint__init_urcu_sym(void) { } #endif static void lttng_ust_notrace __attribute__((constructor)) __tracepoints__init(void); static void __tracepoints__init(void) { if (__tracepoint_registered++) return; if (!tracepoint_dlopen.liblttngust_handle) tracepoint_dlopen.liblttngust_handle = dlopen("liblttng-ust-tracepoint.so.0", RTLD_NOW | RTLD_GLOBAL); if (!tracepoint_dlopen.liblttngust_handle) return; __tracepoint__init_urcu_sym(); } static void lttng_ust_notrace __attribute__((destructor)) __tracepoints__destroy(void); static void __tracepoints__destroy(void) { int ret; if (--__tracepoint_registered) return; if (tracepoint_dlopen.liblttngust_handle && !__tracepoint_ptrs_registered) { ret = dlclose(tracepoint_dlopen.liblttngust_handle); if (ret) { fprintf(stderr, "Error (%d) in dlclose\n", ret); abort(); } memset(&tracepoint_dlopen, 0, sizeof(tracepoint_dlopen)); } } #endif #ifdef TRACEPOINT_DEFINE /* * These weak symbols, the constructor, and destructor take care of * registering only _one_ instance of the tracepoints per shared-ojbect * (or for the whole main program). */ extern struct tracepoint * const __start___tracepoints_ptrs[] __attribute__((weak, visibility("hidden"))); extern struct tracepoint * const __stop___tracepoints_ptrs[] __attribute__((weak, visibility("hidden"))); /* * When TRACEPOINT_PROBE_DYNAMIC_LINKAGE is defined, we do not emit a * unresolved symbol that requires the provider to be linked in. When * TRACEPOINT_PROBE_DYNAMIC_LINKAGE is not defined, we emit an * unresolved symbol that depends on having the provider linked in, * otherwise the linker complains. This deals with use of static * libraries, ensuring that the linker does not remove the provider * object from the executable. */ #ifdef TRACEPOINT_PROBE_DYNAMIC_LINKAGE #define _TRACEPOINT_UNDEFINED_REF(provider) NULL #else /* TRACEPOINT_PROBE_DYNAMIC_LINKAGE */ #define _TRACEPOINT_UNDEFINED_REF(provider) &__tracepoint_provider_##provider #endif /* TRACEPOINT_PROBE_DYNAMIC_LINKAGE */ /* * Note: to allow PIC code, we need to allow the linker to update the pointers * in the __tracepoints_ptrs section. * Therefore, this section is _not_ const (read-only). */ #define _TP_EXTRACT_STRING(...) #__VA_ARGS__ #define _DEFINE_TRACEPOINT(_provider, _name, _args) \ extern int __tracepoint_provider_##_provider; \ static const char __tp_strtab_##_provider##___##_name[] \ __attribute__((section("__tracepoints_strings"))) = \ #_provider ":" #_name; \ struct tracepoint __tracepoint_##_provider##___##_name \ __attribute__((section("__tracepoints"))) = \ { \ __tp_strtab_##_provider##___##_name, \ 0, \ NULL, \ _TRACEPOINT_UNDEFINED_REF(_provider), \ _TP_EXTRACT_STRING(_args), \ { }, \ }; \ static struct tracepoint * __tracepoint_ptr_##_provider##___##_name \ __attribute__((used, section("__tracepoints_ptrs"))) = \ &__tracepoint_##_provider##___##_name; static void lttng_ust_notrace __attribute__((constructor)) __tracepoints__ptrs_init(void); static void __tracepoints__ptrs_init(void) { if (__tracepoint_ptrs_registered++) return; if (!tracepoint_dlopen.liblttngust_handle) tracepoint_dlopen.liblttngust_handle = dlopen("liblttng-ust-tracepoint.so.0", RTLD_NOW | RTLD_GLOBAL); if (!tracepoint_dlopen.liblttngust_handle) return; tracepoint_dlopen.tracepoint_register_lib = URCU_FORCE_CAST(int (*)(struct tracepoint * const *, int), dlsym(tracepoint_dlopen.liblttngust_handle, "tracepoint_register_lib")); tracepoint_dlopen.tracepoint_unregister_lib = URCU_FORCE_CAST(int (*)(struct tracepoint * const *), dlsym(tracepoint_dlopen.liblttngust_handle, "tracepoint_unregister_lib")); __tracepoint__init_urcu_sym(); if (tracepoint_dlopen.tracepoint_register_lib) { tracepoint_dlopen.tracepoint_register_lib(__start___tracepoints_ptrs, __stop___tracepoints_ptrs - __start___tracepoints_ptrs); } } static void lttng_ust_notrace __attribute__((destructor)) __tracepoints__ptrs_destroy(void); static void __tracepoints__ptrs_destroy(void) { int ret; if (--__tracepoint_ptrs_registered) return; if (tracepoint_dlopen.tracepoint_unregister_lib) tracepoint_dlopen.tracepoint_unregister_lib(__start___tracepoints_ptrs); if (tracepoint_dlopen.liblttngust_handle && !__tracepoint_registered) { ret = dlclose(tracepoint_dlopen.liblttngust_handle); if (ret) { fprintf(stderr, "Error (%d) in dlclose\n", ret); abort(); } memset(&tracepoint_dlopen, 0, sizeof(tracepoint_dlopen)); } } #else /* TRACEPOINT_DEFINE */ #define _DEFINE_TRACEPOINT(_provider, _name, _args) #endif /* #else TRACEPOINT_DEFINE */ #ifdef __cplusplus } #endif #endif /* _LTTNG_TRACEPOINT_H */ /* The following declarations must be outside re-inclusion protection. */ #ifndef TRACEPOINT_EVENT /* * How to use the TRACEPOINT_EVENT macro: * * An example: * * TRACEPOINT_EVENT(someproject_component, event_name, * * * TP_ARGS takes from 0 to 10 "type, field_name" pairs * * * TP_ARGS(int, arg0, void *, arg1, char *, string, size_t, strlen, * long *, arg4, size_t, arg4_len), * * * TP_FIELDS describes the event payload layout in the trace * * * TP_FIELDS( * * Integer, printed in base 10 * * ctf_integer(int, field_a, arg0) * * * Integer, printed with 0x base 16 * * ctf_integer_hex(unsigned long, field_d, arg1) * * * Array Sequence, printed as UTF8-encoded array of bytes * * ctf_array_text(char, field_b, string, FIXED_LEN) * ctf_sequence_text(char, field_c, string, size_t, strlen) * * * String, printed as UTF8-encoded string * * ctf_string(field_e, string) * * * Array sequence of signed integer values * * ctf_array(long, field_f, arg4, FIXED_LEN4) * ctf_sequence(long, field_g, arg4, size_t, arg4_len) * ) * ) * * More detailed explanation: * * The name of the tracepoint is expressed as a tuple with the provider * and name arguments. * * The provider and name should be a proper C99 identifier. * The "provider" and "name" MUST follow these rules to ensure no * namespace clash occurs: * * For projects (applications and libraries) for which an entity * specific to the project controls the source code and thus its * tracepoints (typically with a scope larger than a single company): * * either: * project_component, event * or: * project, event * * Where "project" is the name of the project, * "component" is the name of the project component (which may * include several levels of sub-components, e.g. * ...component_subcomponent_...) where the tracepoint is located * (optional), * "event" is the name of the tracepoint event. * * For projects issued from a single company wishing to advertise that * the company controls the source code and thus the tracepoints, the * "com_" prefix should be used: * * either: * com_company_project_component, event * or: * com_company_project, event * * Where "company" is the name of the company, * "project" is the name of the project, * "component" is the name of the project component (which may * include several levels of sub-components, e.g. * ...component_subcomponent_...) where the tracepoint is located * (optional), * "event" is the name of the tracepoint event. * * the provider:event identifier is limited to 127 characters. */ #define TRACEPOINT_EVENT(provider, name, args, fields) \ _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args)) \ _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args)) #define TRACEPOINT_EVENT_CLASS(provider, name, args, fields) #define TRACEPOINT_EVENT_INSTANCE(provider, _template, name, args) \ _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args)) \ _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args)) #endif /* #ifndef TRACEPOINT_EVENT */ #ifndef TRACEPOINT_LOGLEVEL /* * Tracepoint Loglevels * * Typical use of these loglevels: * * The loglevels go from 0 to 14. Higher numbers imply the most * verbosity (higher event throughput expected. * * Loglevels 0 through 6, and loglevel 14, match syslog(3) loglevels * semantic. Loglevels 7 through 13 offer more fine-grained selection of * debug information. * * TRACE_EMERG 0 * system is unusable * * TRACE_ALERT 1 * action must be taken immediately * * TRACE_CRIT 2 * critical conditions * * TRACE_ERR 3 * error conditions * * TRACE_WARNING 4 * warning conditions * * TRACE_NOTICE 5 * normal, but significant, condition * * TRACE_INFO 6 * informational message * * TRACE_DEBUG_SYSTEM 7 * debug information with system-level scope (set of programs) * * TRACE_DEBUG_PROGRAM 8 * debug information with program-level scope (set of processes) * * TRACE_DEBUG_PROCESS 9 * debug information with process-level scope (set of modules) * * TRACE_DEBUG_MODULE 10 * debug information with module (executable/library) scope (set of units) * * TRACE_DEBUG_UNIT 11 * debug information with compilation unit scope (set of functions) * * TRACE_DEBUG_FUNCTION 12 * debug information with function-level scope * * TRACE_DEBUG_LINE 13 * debug information with line-level scope (TRACEPOINT_EVENT default) * * TRACE_DEBUG 14 * debug-level message (trace_printf default) * * Declare tracepoint loglevels for tracepoints. A TRACEPOINT_EVENT * should be declared prior to the the TRACEPOINT_LOGLEVEL for a given * tracepoint name. The first field is the provider name, the second * field is the name of the tracepoint, the third field is the loglevel * name. * * TRACEPOINT_LOGLEVEL(< [com_company_]project[_component] >, < event >, * < loglevel_name >) * * The TRACEPOINT_PROVIDER must be already declared before declaring a * TRACEPOINT_LOGLEVEL. */ enum { TRACE_EMERG = 0, TRACE_ALERT = 1, TRACE_CRIT = 2, TRACE_ERR = 3, TRACE_WARNING = 4, TRACE_NOTICE = 5, TRACE_INFO = 6, TRACE_DEBUG_SYSTEM = 7, TRACE_DEBUG_PROGRAM = 8, TRACE_DEBUG_PROCESS = 9, TRACE_DEBUG_MODULE = 10, TRACE_DEBUG_UNIT = 11, TRACE_DEBUG_FUNCTION = 12, TRACE_DEBUG_LINE = 13, TRACE_DEBUG = 14, }; #define TRACEPOINT_LOGLEVEL(provider, name, loglevel) #endif /* #ifndef TRACEPOINT_LOGLEVEL */ #ifndef TRACEPOINT_MODEL_EMF_URI #define TRACEPOINT_MODEL_EMF_URI(provider, name, uri) #endif /* #ifndef TRACEPOINT_MODEL_EMF_URI */ lttng-ust-2.4.0/include/lttng/ust-tracepoint-event-nowrite.h0000644000175000017500000000422112200722032021075 00000000000000/* * Copyright (c) 2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #undef ctf_integer_nowrite #define ctf_integer_nowrite(_type, _item, _src) \ _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, 1) #undef ctf_float_nowrite #define ctf_float_nowrite(_type, _item, _src) \ _ctf_float(_type, _item, _src, 1) #undef ctf_array_nowrite #define ctf_array_nowrite(_type, _item, _src, _length) \ _ctf_array_encoded(_type, _item, _src, _length, none, 1) #undef ctf_array_text_nowrite #define ctf_array_text_nowrite(_type, _item, _src, _length) \ _ctf_array_encoded(_type, _item, _src, _length, UTF8, 1) #undef ctf_sequence_nowrite #define ctf_sequence_nowrite(_type, _item, _src, _length_type, _src_length) \ _ctf_sequence_encoded(_type, _item, _src, \ _length_type, _src_length, none, 1) #undef ctf_sequence_text_nowrite #define ctf_sequence_text_nowrite(_type, _item, _src, _length_type, _src_length) \ _ctf_sequence_encoded(_type, _item, _src, \ _length_type, _src_length, UTF8, 1) #undef ctf_string_nowrite #define ctf_string_nowrite(_item, _src) \ _ctf_string(_item, _src, 1) lttng-ust-2.4.0/include/lttng/ust-events.h0000644000175000017500000004513412304151532015443 00000000000000#ifndef _LTTNG_UST_EVENTS_H #define _LTTNG_UST_EVENTS_H /* * lttng/ust-events.h * * Copyright 2010-2012 (c) - Mathieu Desnoyers * * Holds LTTng per-session event registry. * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #include #include #include #include #ifdef __cplusplus extern "C" { #endif #define LTTNG_UST_UUID_LEN 16 /* * Tracepoint provider version. Compatibility based on the major number. * Older tracepoint providers can always register to newer lttng-ust * library, but the opposite is rejected: a newer tracepoint provider is * rejected by an older lttng-ust library. */ #define LTTNG_UST_PROVIDER_MAJOR 1 #define LTTNG_UST_PROVIDER_MINOR 0 struct lttng_channel; struct lttng_session; struct lttng_ust_lib_ring_buffer_ctx; /* * Data structures used by tracepoint event declarations, and by the * tracer. Those structures have padding for future extension. */ /* * LTTng client type enumeration. Used by the consumer to map the * callbacks from its own address space. */ enum lttng_client_types { LTTNG_CLIENT_METADATA = 0, LTTNG_CLIENT_DISCARD = 1, LTTNG_CLIENT_OVERWRITE = 2, LTTNG_CLIENT_DISCARD_RT = 3, LTTNG_CLIENT_OVERWRITE_RT = 4, LTTNG_NR_CLIENT_TYPES, }; /* Type description */ /* Update the astract_types name table in lttng-types.c along with this enum */ enum lttng_abstract_types { atype_integer, atype_enum, atype_array, atype_sequence, atype_string, atype_float, NR_ABSTRACT_TYPES, }; /* Update the string_encodings name table in lttng-types.c along with this enum */ enum lttng_string_encodings { lttng_encode_none = 0, lttng_encode_UTF8 = 1, lttng_encode_ASCII = 2, NR_STRING_ENCODINGS, }; #define LTTNG_UST_ENUM_ENTRY_PADDING 16 struct lttng_enum_entry { unsigned long long start, end; /* start and end are inclusive */ const char *string; char padding[LTTNG_UST_ENUM_ENTRY_PADDING]; }; #define __type_integer(_type, _byte_order, _base, _encoding) \ { \ .atype = atype_integer, \ .u = \ { \ .basic = \ { \ .integer = \ { \ .size = sizeof(_type) * CHAR_BIT, \ .alignment = lttng_alignof(_type) * CHAR_BIT, \ .signedness = lttng_is_signed_type(_type), \ .reverse_byte_order = _byte_order != BYTE_ORDER, \ .base = _base, \ .encoding = lttng_encode_##_encoding, \ } \ } \ }, \ } \ #define LTTNG_UST_INTEGER_TYPE_PADDING 24 struct lttng_integer_type { unsigned int size; /* in bits */ unsigned short alignment; /* in bits */ unsigned int signedness:1; unsigned int reverse_byte_order:1; unsigned int base; /* 2, 8, 10, 16, for pretty print */ enum lttng_string_encodings encoding; char padding[LTTNG_UST_INTEGER_TYPE_PADDING]; }; /* * Only float and double are supported. long double is not supported at * the moment. */ #define _float_mant_dig(_type) \ (sizeof(_type) == sizeof(float) ? FLT_MANT_DIG \ : (sizeof(_type) == sizeof(double) ? DBL_MANT_DIG \ : 0)) #define __type_float(_type) \ { \ .atype = atype_float, \ .u = \ { \ .basic = \ { \ ._float = \ { \ .exp_dig = sizeof(_type) * CHAR_BIT \ - _float_mant_dig(_type), \ .mant_dig = _float_mant_dig(_type), \ .alignment = lttng_alignof(_type) * CHAR_BIT, \ .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \ } \ } \ }, \ } \ #define LTTNG_UST_FLOAT_TYPE_PADDING 24 struct lttng_float_type { unsigned int exp_dig; /* exponent digits, in bits */ unsigned int mant_dig; /* mantissa digits, in bits */ unsigned short alignment; /* in bits */ unsigned int reverse_byte_order:1; char padding[LTTNG_UST_FLOAT_TYPE_PADDING]; }; #define LTTNG_UST_BASIC_TYPE_PADDING 128 union _lttng_basic_type { struct lttng_integer_type integer; struct { const char *name; } enumeration; struct { enum lttng_string_encodings encoding; } string; struct lttng_float_type _float; char padding[LTTNG_UST_BASIC_TYPE_PADDING]; }; struct lttng_basic_type { enum lttng_abstract_types atype; union { union _lttng_basic_type basic; } u; }; #define LTTNG_UST_TYPE_PADDING 128 struct lttng_type { enum lttng_abstract_types atype; union { union _lttng_basic_type basic; struct { struct lttng_basic_type elem_type; unsigned int length; /* num. elems. */ } array; struct { struct lttng_basic_type length_type; struct lttng_basic_type elem_type; } sequence; char padding[LTTNG_UST_TYPE_PADDING]; } u; }; #define LTTNG_UST_ENUM_TYPE_PADDING 24 struct lttng_enum { const char *name; struct lttng_type container_type; const struct lttng_enum_entry *entries; unsigned int len; char padding[LTTNG_UST_ENUM_TYPE_PADDING]; }; /* * Event field description * * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. */ #define LTTNG_UST_EVENT_FIELD_PADDING 28 struct lttng_event_field { const char *name; struct lttng_type type; unsigned int nowrite; /* do not write into trace */ char padding[LTTNG_UST_EVENT_FIELD_PADDING]; }; union lttng_ctx_value { int64_t s64; const char *str; double d; }; #define LTTNG_UST_CTX_FIELD_PADDING 40 struct lttng_ctx_field { struct lttng_event_field event_field; size_t (*get_size)(size_t offset); void (*record)(struct lttng_ctx_field *field, struct lttng_ust_lib_ring_buffer_ctx *ctx, struct lttng_channel *chan); void (*get_value)(struct lttng_ctx_field *field, union lttng_ctx_value *value); union { char padding[LTTNG_UST_CTX_FIELD_PADDING]; } u; void (*destroy)(struct lttng_ctx_field *field); }; #define LTTNG_UST_CTX_PADDING 24 struct lttng_ctx { struct lttng_ctx_field *fields; unsigned int nr_fields; unsigned int allocated_fields; char padding[LTTNG_UST_CTX_PADDING]; }; #define LTTNG_UST_EVENT_DESC_PADDING 40 struct lttng_event_desc { const char *name; void (*probe_callback)(void); const struct lttng_event_ctx *ctx; /* context */ const struct lttng_event_field *fields; /* event payload */ unsigned int nr_fields; const int **loglevel; const char *signature; /* Argument types/names received */ union { struct { const char **model_emf_uri; } ext; char padding[LTTNG_UST_EVENT_DESC_PADDING]; } u; }; #define LTTNG_UST_PROBE_DESC_PADDING 12 struct lttng_probe_desc { const char *provider; const struct lttng_event_desc **event_desc; unsigned int nr_events; struct cds_list_head head; /* chain registered probes */ struct cds_list_head lazy_init_head; int lazy; /* lazy registration */ uint32_t major; uint32_t minor; char padding[LTTNG_UST_PROBE_DESC_PADDING]; }; /* Data structures used by the tracer. */ enum lttng_enabler_type { LTTNG_ENABLER_WILDCARD, LTTNG_ENABLER_EVENT, }; /* * Enabler field, within whatever object is enabling an event. Target of * backward reference. */ struct lttng_enabler { enum lttng_enabler_type type; /* head list of struct lttng_ust_filter_bytecode_node */ struct cds_list_head filter_bytecode_head; /* head list of struct lttng_ust_excluder_node */ struct cds_list_head excluder_head; struct cds_list_head node; /* per-session list of enablers */ struct lttng_ust_event event_param; struct lttng_channel *chan; struct lttng_ctx *ctx; unsigned int enabled:1; }; struct tp_list_entry { struct lttng_ust_tracepoint_iter tp; struct cds_list_head head; }; struct lttng_ust_tracepoint_list { struct tp_list_entry *iter; struct cds_list_head head; }; struct tp_field_list_entry { struct lttng_ust_field_iter field; struct cds_list_head head; }; struct lttng_ust_field_list { struct tp_field_list_entry *iter; struct cds_list_head head; }; struct ust_pending_probe; struct lttng_event; struct lttng_ust_filter_bytecode_node { struct cds_list_head node; struct lttng_enabler *enabler; /* * struct lttng_ust_filter_bytecode has var. sized array, must * be last field. */ struct lttng_ust_filter_bytecode bc; }; struct lttng_ust_excluder_node { struct cds_list_head node; struct lttng_enabler *enabler; /* * struct lttng_ust_event_exclusion had variable sized array, * must be last field. */ struct lttng_ust_event_exclusion excluder; }; /* * Filter return value masks. */ enum lttng_filter_ret { LTTNG_FILTER_DISCARD = 0, LTTNG_FILTER_RECORD_FLAG = (1ULL << 0), /* Other bits are kept for future use. */ }; struct lttng_bytecode_runtime { /* Associated bytecode */ struct lttng_ust_filter_bytecode_node *bc; uint64_t (*filter)(void *filter_data, const char *filter_stack_data); int link_failed; struct cds_list_head node; /* list of bytecode runtime in event */ }; /* * Objects in a linked-list of enablers, owned by an event. */ struct lttng_enabler_ref { struct cds_list_head node; /* enabler ref list */ struct lttng_enabler *ref; /* backward ref */ }; /* * lttng_event structure is referred to by the tracing fast path. It * must be kept small. * * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. */ struct lttng_event { /* LTTng-UST 2.0 starts here */ unsigned int id; struct lttng_channel *chan; int enabled; const struct lttng_event_desc *desc; void *_deprecated1; struct lttng_ctx *ctx; enum lttng_ust_instrumentation instrumentation; union { } u; struct cds_list_head node; /* Event list in session */ struct cds_list_head _deprecated2; void *_deprecated3; unsigned int _deprecated4:1; /* LTTng-UST 2.1 starts here */ /* list of struct lttng_bytecode_runtime, sorted by seqnum */ struct cds_list_head bytecode_runtime_head; int has_enablers_without_bytecode; /* Backward references: list of lttng_enabler_ref (ref to enablers) */ struct cds_list_head enablers_ref_head; struct cds_hlist_node hlist; /* session ht of events */ int registered; /* has reg'd tracepoint probe */ }; struct channel; struct lttng_ust_shm_handle; /* * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. */ struct lttng_channel_ops { struct lttng_channel *(*channel_create)(const char *name, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval, unsigned char *uuid, uint32_t chan_id); void (*channel_destroy)(struct lttng_channel *chan); void *_deprecated1; void *_deprecated2; int (*event_reserve)(struct lttng_ust_lib_ring_buffer_ctx *ctx, uint32_t event_id); void (*event_commit)(struct lttng_ust_lib_ring_buffer_ctx *ctx); void (*event_write)(struct lttng_ust_lib_ring_buffer_ctx *ctx, const void *src, size_t len); /* * packet_avail_size returns the available size in the current * packet. Note that the size returned is only a hint, since it * may change due to concurrent writes. */ size_t (*packet_avail_size)(struct channel *chan, struct lttng_ust_shm_handle *handle); //wait_queue_head_t *(*get_reader_wait_queue)(struct channel *chan); //wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan); int (*is_finalized)(struct channel *chan); int (*is_disabled)(struct channel *chan); int (*flush_buffer)(struct channel *chan, struct lttng_ust_shm_handle *handle); }; /* * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. */ struct lttng_channel { /* * The pointers located in this private data are NOT safe to be * dereferenced by the consumer. The only operations the * consumer process is designed to be allowed to do is to read * and perform subbuffer flush. */ struct channel *chan; /* Channel buffers */ int enabled; struct lttng_ctx *ctx; /* Event ID management */ struct lttng_session *session; int objd; /* Object associated to channel */ unsigned int _deprecated1; unsigned int _deprecated2; struct cds_list_head node; /* Channel list in session */ const struct lttng_channel_ops *ops; int header_type; /* 0: unset, 1: compact, 2: large */ struct lttng_ust_shm_handle *handle; /* shared-memory handle */ unsigned int _deprecated3:1; /* Channel ID */ unsigned int id; enum lttng_ust_chan_type type; unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ int tstate:1; /* Transient enable state */ }; #define LTTNG_UST_EVENT_HT_BITS 12 #define LTTNG_UST_EVENT_HT_SIZE (1U << LTTNG_UST_EVENT_HT_BITS) struct lttng_ust_event_ht { struct cds_hlist_head table[LTTNG_UST_EVENT_HT_SIZE]; }; /* * IMPORTANT: this structure is part of the ABI between the probe and * UST. Fields need to be only added at the end, never reordered, never * removed. */ struct lttng_session { int active; /* Is trace session active ? */ int been_active; /* Been active ? */ int objd; /* Object associated */ void *_deprecated1; struct cds_list_head chan_head; /* Channel list head */ struct cds_list_head events_head; /* list of events */ struct cds_list_head _deprecated2; struct cds_list_head node; /* Session list */ int _deprecated3; unsigned int _deprecated4:1; /* New UST 2.1 */ /* List of enablers */ struct cds_list_head enablers_head; struct lttng_ust_event_ht events_ht; /* ht of events */ void *owner; /* object owner */ int tstate:1; /* Transient enable state */ /* New UST 2.4 */ int statedump_pending:1; }; struct lttng_transport { char *name; struct cds_list_head node; struct lttng_channel_ops ops; const struct lttng_ust_lib_ring_buffer_config *client_config; }; struct lttng_session *lttng_session_create(void); int lttng_session_enable(struct lttng_session *session); int lttng_session_disable(struct lttng_session *session); void lttng_session_destroy(struct lttng_session *session); struct lttng_channel *lttng_channel_create(struct lttng_session *session, const char *transport_name, void *buf_addr, size_t subbuf_size, size_t num_subbuf, unsigned int switch_timer_interval, unsigned int read_timer_interval, int **shm_fd, int **wait_fd, uint64_t **memory_map_size, struct lttng_channel *chan_priv_init); int lttng_channel_enable(struct lttng_channel *channel); int lttng_channel_disable(struct lttng_channel *channel); struct lttng_enabler *lttng_enabler_create(enum lttng_enabler_type type, struct lttng_ust_event *event_param, struct lttng_channel *chan); int lttng_enabler_enable(struct lttng_enabler *enabler); int lttng_enabler_disable(struct lttng_enabler *enabler); int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler, struct lttng_ust_filter_bytecode_node *bytecode); int lttng_enabler_attach_context(struct lttng_enabler *enabler, struct lttng_ust_context *ctx); int lttng_enabler_attach_exclusion(struct lttng_enabler *enabler, struct lttng_ust_excluder_node *excluder); int lttng_attach_context(struct lttng_ust_context *context_param, struct lttng_ctx **ctx, struct lttng_session *session); void lttng_context_init(void); void lttng_context_exit(void); extern struct lttng_ctx *lttng_static_ctx; /* Used by filtering */ void lttng_transport_register(struct lttng_transport *transport); void lttng_transport_unregister(struct lttng_transport *transport); void synchronize_trace(void); int lttng_probe_register(struct lttng_probe_desc *desc); void lttng_probe_unregister(struct lttng_probe_desc *desc); int lttng_fix_pending_events(void); int lttng_probes_init(void); void lttng_probes_exit(void); int lttng_find_context(struct lttng_ctx *ctx, const char *name); int lttng_get_context_index(struct lttng_ctx *ctx, const char *name); struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx_p); void lttng_remove_context_field(struct lttng_ctx **ctx_p, struct lttng_ctx_field *field); void lttng_destroy_context(struct lttng_ctx *ctx); int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx); int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx); int lttng_add_pthread_id_to_ctx(struct lttng_ctx **ctx); int lttng_add_procname_to_ctx(struct lttng_ctx **ctx); int lttng_add_ip_to_ctx(struct lttng_ctx **ctx); void lttng_context_vtid_reset(void); void lttng_context_vpid_reset(void); extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_metadata; extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_discard; extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_overwrite; struct lttng_transport *lttng_transport_find(const char *name); int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list); void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list); struct lttng_ust_tracepoint_iter * lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list); int lttng_probes_get_field_list(struct lttng_ust_field_list *list); void lttng_probes_prune_field_list(struct lttng_ust_field_list *list); struct lttng_ust_field_iter * lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list); void lttng_filter_event_link_bytecode(struct lttng_event *event); void lttng_enabler_event_link_bytecode(struct lttng_event *event, struct lttng_enabler *enabler); void lttng_free_event_filter_runtime(struct lttng_event *event); void lttng_filter_sync_state(struct lttng_bytecode_runtime *runtime); struct cds_list_head *lttng_get_probe_list_head(void); int lttng_session_active(void); typedef int (*t_statedump_func_ptr)(struct lttng_session *session); void lttng_handle_pending_statedump(void *owner); struct cds_list_head *_lttng_get_sessions(void); #ifdef __cplusplus } #endif #endif /* _LTTNG_UST_EVENTS_H */ lttng-ust-2.4.0/include/lttng/bug.h0000644000175000017500000000426212200722032014072 00000000000000#ifndef _LTTNG_BUG_H #define _LTTNG_BUG_H /* * lttng/bug.h * * (C) Copyright 2010-2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #define LTTNG_BUG_ON(condition) \ do { \ if (caa_unlikely(condition)) { \ fprintf(stderr, \ "LTTng BUG in file %s, line %d.\n", \ __FILE__, __LINE__); \ exit(EXIT_FAILURE); \ } \ } while (0) #define LTTNG_BUILD_BUG_ON(condition) \ ((void) sizeof(char[-!!(condition)])) /** * LTTNG_BUILD_RUNTIME_BUG_ON - check condition at build (if constant) or runtime * @condition: the condition which should be false. * * If the condition is a constant and true, the compiler will generate a build * error. If the condition is not constant, a BUG will be triggered at runtime * if the condition is ever true. If the condition is constant and false, no * code is emitted. */ #define LTTNG_BUILD_RUNTIME_BUG_ON(condition) \ do { \ if (__builtin_constant_p(condition)) \ LTTNG_BUILD_BUG_ON(condition); \ else \ LTTNG_BUG_ON(condition); \ } while (0) #endif lttng-ust-2.4.0/include/lttng/ust-tracepoint-event-write.h0000644000175000017500000000470012200722032020542 00000000000000/* * Copyright (c) 2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #undef ctf_integer #define ctf_integer(_type, _item, _src) \ _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10, 0) #undef ctf_integer_hex #define ctf_integer_hex(_type, _item, _src) \ _ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 16, 0) #undef ctf_integer_network #define ctf_integer_network(_type, _item, _src) \ _ctf_integer_ext(_type, _item, _src, BIG_ENDIAN, 10, 0) #undef ctf_integer_network_hex #define ctf_integer_network_hex(_type, _item, _src) \ _ctf_integer_ext(_type, _item, _src, BIG_ENDIAN, 16, 0) #undef ctf_float #define ctf_float(_type, _item, _src) \ _ctf_float(_type, _item, _src, 0) #undef ctf_array #define ctf_array(_type, _item, _src, _length) \ _ctf_array_encoded(_type, _item, _src, _length, none, 0) #undef ctf_array_text #define ctf_array_text(_type, _item, _src, _length) \ _ctf_array_encoded(_type, _item, _src, _length, UTF8, 0) #undef ctf_sequence #define ctf_sequence(_type, _item, _src, _length_type, _src_length) \ _ctf_sequence_encoded(_type, _item, _src, \ _length_type, _src_length, none, 0) #undef ctf_sequence_text #define ctf_sequence_text(_type, _item, _src, _length_type, _src_length) \ _ctf_sequence_encoded(_type, _item, _src, \ _length_type, _src_length, UTF8, 0) #undef ctf_string #define ctf_string(_item, _src) \ _ctf_string(_item, _src, 0) lttng-ust-2.4.0/include/lttng/ust.h0000644000175000017500000000273112244163736014151 00000000000000#ifndef _LTTNG_UST_H #define _LTTNG_UST_H /* * Copyright (c) 2011-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #ifdef __cplusplus extern "C" { #endif extern void ust_before_fork(sigset_t *save_sigset); extern void ust_after_fork_parent(sigset_t *restore_sigset); extern void ust_after_fork_child(sigset_t *restore_sigset); #ifdef __cplusplus } #endif #endif /* _LTTNG_UST_H */ lttng-ust-2.4.0/include/lttng/ust-error.h0000644000175000017500000000415512275157353015304 00000000000000#ifndef _LTTNG_UST_ERROR_H #define _LTTNG_UST_ERROR_H /* * Copyright (C) 2011 - David Goulet * Julien Desfossez * Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* * This header is meant for liblttng and libust internal use ONLY. * These declarations should NOT be considered stable API. */ #include #include #include #ifdef __cplusplus extern "C" { #endif /* * ustcomm error code. */ enum lttng_ust_error_code { LTTNG_UST_OK = 0, /* Ok */ LTTNG_UST_ERR = 1024, /* Unknown Error */ LTTNG_UST_ERR_NOENT = 1025, /* No entry */ LTTNG_UST_ERR_EXIST = 1026, /* Object exists */ LTTNG_UST_ERR_INVAL = 1027, /* Invalid argument */ LTTNG_UST_ERR_PERM = 1028, /* Permission denied */ LTTNG_UST_ERR_NOSYS = 1029, /* Not implemented */ LTTNG_UST_ERR_EXITING = 1030, /* Process is exiting */ LTTNG_UST_ERR_INVAL_MAGIC = 1031, /* Invalid magic number */ LTTNG_UST_ERR_INVAL_SOCKET_TYPE = 1032, /* Invalid socket type */ LTTNG_UST_ERR_UNSUP_MAJOR = 1033, /* Unsupported major version */ /* MUST be last element */ LTTNG_UST_ERR_NR, /* Last element */ }; /* * Return a human-readable error message for an lttng-ust error code. * code must be a positive value (or 0). */ extern const char *lttng_ust_strerror(int code); #ifdef __cplusplus } #endif #endif /* _LTTNG_UST_ERROR_H */ lttng-ust-2.4.0/include/lttng/ust-endian.h0000644000175000017500000000326012200722032015361 00000000000000#ifndef _LTTNG_UST_ENDIAN_H #define _LTTNG_UST_ENDIAN_H /* * lttng/ust-endian.h * * Copyright 2012 (c) - Mathieu Desnoyers * * endian.h compatibility layer. * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #if (defined(__linux__) || defined(__CYGWIN__)) #include #elif defined(__FreeBSD__) #include #else #error "Please add support for your OS." #endif #ifndef FLOAT_WORD_ORDER #ifdef __FLOAT_WORD_ORDER #define FLOAT_WORD_ORDER __FLOAT_WORD_ORDER #else /* __FLOAT_WORD_ORDER */ #define FLOAT_WORD_ORDER BYTE_ORDER #endif /* __FLOAT_WORD_ORDER */ #endif /* FLOAT_WORD_ORDER */ #endif /* _LTTNG_UST_ENDIAN_H */ lttng-ust-2.4.0/include/lttng/ust-tracer.h0000644000175000017500000000343012275157353015426 00000000000000#ifndef _LTTNG_UST_TRACER_H #define _LTTNG_UST_TRACER_H /* * Copyright (C) 2005-2011 Mathieu Desnoyers * * This contains the core definitions for the Linux Trace Toolkit. * * Copyright 2011-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #ifndef LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS /* Align data on its natural alignment */ #define RING_BUFFER_ALIGN #endif #ifndef CHAR_BIT #define CHAR_BIT 8 #endif #ifdef RING_BUFFER_ALIGN #define lttng_alignof(type) __alignof__(type) #else #define lttng_alignof(type) 1 #endif #define lttng_is_signed_type(type) ((type) -1 < (type) 0) #endif /* _LTTNG_UST_TRACER_H */ lttng-ust-2.4.0/include/lttng/ringbuffer-abi.h0000644000175000017500000000720112200722032016173 00000000000000#ifndef _LTTNG_RING_BUFFER_ABI_H #define _LTTNG_RING_BUFFER_ABI_H /* * lttng/ringbuffer-abi.h * * (C) Copyright 2005-2012 - Mathieu Desnoyers * * Wait-free ring buffer ABI. * * Author: * Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define _UST_CMD(minor) (minor) #define _UST_CMDR(minor, type) (minor) #define _UST_CMDW(minor, type) (minor) /* * Use RING_BUFFER_GET_NEXT_SUBBUF / RING_BUFFER_PUT_NEXT_SUBBUF to read and * consume sub-buffers sequentially. * * Reading sub-buffers without consuming them can be performed with: * * RING_BUFFER_SNAPSHOT * RING_BUFFER_SNAPSHOT_GET_CONSUMED * RING_BUFFER_SNAPSHOT_GET_PRODUCED * * to get the offset range to consume, and then by passing each sub-buffer * offset to RING_BUFFER_GET_SUBBUF, read the sub-buffer, and then release it * with RING_BUFFER_PUT_SUBBUF. * * Note that the "snapshot" API can be used to read the sub-buffer in reverse * order, which is useful for flight recorder snapshots. */ /* Get a snapshot of the current ring buffer producer and consumer positions */ #define RING_BUFFER_SNAPSHOT _UST_CMD(0x00) /* Get the consumer position (iteration start) */ #define RING_BUFFER_SNAPSHOT_GET_CONSUMED _UST_CMDR(0x01, unsigned long) /* Get the producer position (iteration end) */ #define RING_BUFFER_SNAPSHOT_GET_PRODUCED _UST_CMDR(0x02, unsigned long) /* Get exclusive read access to the specified sub-buffer position */ #define RING_BUFFER_GET_SUBBUF _UST_CMDW(0x03, unsigned long) /* Release exclusive sub-buffer access */ #define RING_BUFFER_PUT_SUBBUF _UST_CMD(0x04) /* Get exclusive read access to the next sub-buffer that can be read. */ #define RING_BUFFER_GET_NEXT_SUBBUF _UST_CMD(0x05) /* Release exclusive sub-buffer access, move consumer forward. */ #define RING_BUFFER_PUT_NEXT_SUBBUF _UST_CMD(0x06) /* returns the size of the current sub-buffer, without padding (for mmap). */ #define RING_BUFFER_GET_SUBBUF_SIZE _UST_CMDR(0x07, unsigned long) /* returns the size of the current sub-buffer, with padding (for splice). */ #define RING_BUFFER_GET_PADDED_SUBBUF_SIZE _UST_CMDR(0x08, unsigned long) /* returns the maximum size for sub-buffers. */ #define RING_BUFFER_GET_MAX_SUBBUF_SIZE _UST_CMDR(0x09, unsigned long) /* returns the length to mmap. */ #define RING_BUFFER_GET_MMAP_LEN _UST_CMDR(0x0A, unsigned long) /* returns the offset of the subbuffer belonging to the mmap reader. */ #define RING_BUFFER_GET_MMAP_READ_OFFSET _UST_CMDR(0x0B, unsigned long) /* flush the current sub-buffer */ #define RING_BUFFER_FLUSH _UST_CMD(0x0C) #endif /* _LTTNG_RING_BUFFER_ABI_H */ lttng-ust-2.4.0/include/lttng/ust-compiler.h0000644000175000017500000000263512200722032015742 00000000000000#ifndef _LTTNG_UST_COMPILER_H #define _LTTNG_UST_COMPILER_H /* * Copyright 2011-2012 - Mathieu Desnoyers * Paul Woegerer * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #define lttng_ust_notrace __attribute__((no_instrument_function)) #define LTTNG_PACKED __attribute__((__packed__)) #endif /* _LTTNG_UST_COMPILER_H */ lttng-ust-2.4.0/include/lttng/ust-tid.h0000644000175000017500000000320412200722032014701 00000000000000#ifndef _LTTNG_UST_TID_H #define _LTTNG_UST_TID_H /* * lttng/ust-tid.h * * Copyright 2012 (c) - Mathieu Desnoyers * * gettid compatibility layer. * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifdef __linux__ #include #endif #if defined(_syscall0) _syscall0(pid_t, gettid) #elif defined(__NR_gettid) #include static inline pid_t gettid(void) { return syscall(__NR_gettid); } #else #include #include /* Fall-back on getpid for tid if not available. */ static inline pid_t gettid(void) { return getpid(); } #endif #endif /* _LTTNG_UST_TID_H */ lttng-ust-2.4.0/include/lttng/ust-ctl.h0000644000175000017500000003214212304151532014714 00000000000000/* * Copyright (C) 2011 - Julien Desfossez * Copyright (C) 2011-2013 - Mathieu Desnoyers * * 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; version 2 of the License only. * * 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef _LTTNG_UST_CTL_H #define _LTTNG_UST_CTL_H #include #include #ifndef LTTNG_UST_UUID_LEN #define LTTNG_UST_UUID_LEN 16 #endif /* Default unix socket path */ #define LTTNG_UST_SOCK_FILENAME \ "lttng-ust-sock-" \ __ust_stringify(LTTNG_UST_ABI_MAJOR_VERSION) /* * Shared memory files path are automatically related to shm root, e.g. * /dev/shm under linux. */ #define LTTNG_UST_WAIT_FILENAME \ "lttng-ust-wait-" \ __ust_stringify(LTTNG_UST_ABI_MAJOR_VERSION) struct lttng_ust_shm_handle; struct lttng_ust_lib_ring_buffer; struct ustctl_consumer_channel_attr { enum lttng_ust_chan_type type; uint64_t subbuf_size; /* bytes */ uint64_t num_subbuf; /* power of 2 */ int overwrite; /* 1: overwrite, 0: discard */ unsigned int switch_timer_interval; /* usec */ unsigned int read_timer_interval; /* usec */ enum lttng_ust_output output; /* splice, mmap */ uint32_t chan_id; /* channel ID */ unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */ } LTTNG_PACKED; /* * API used by sessiond. */ /* * Error values: all the following functions return: * >= 0: Success (LTTNG_UST_OK) * < 0: error code. */ int ustctl_register_done(int sock); int ustctl_create_session(int sock); int ustctl_create_event(int sock, struct lttng_ust_event *ev, struct lttng_ust_object_data *channel_data, struct lttng_ust_object_data **event_data); int ustctl_add_context(int sock, struct lttng_ust_context *ctx, struct lttng_ust_object_data *obj_data, struct lttng_ust_object_data **context_data); int ustctl_set_filter(int sock, struct lttng_ust_filter_bytecode *bytecode, struct lttng_ust_object_data *obj_data); int ustctl_set_exclusion(int sock, struct lttng_ust_event_exclusion *exclusion, struct lttng_ust_object_data *obj_data); int ustctl_enable(int sock, struct lttng_ust_object_data *object); int ustctl_disable(int sock, struct lttng_ust_object_data *object); int ustctl_start_session(int sock, int handle); int ustctl_stop_session(int sock, int handle); /* * ustctl_tracepoint_list returns a tracepoint list handle, or negative * error value. */ int ustctl_tracepoint_list(int sock); /* * ustctl_tracepoint_list_get is used to iterate on the tp list * handle. End is iteration is reached when -LTTNG_UST_ERR_NOENT is * returned. */ int ustctl_tracepoint_list_get(int sock, int tp_list_handle, struct lttng_ust_tracepoint_iter *iter); /* * ustctl_tracepoint_field_list returns a tracepoint field list handle, * or negative error value. */ int ustctl_tracepoint_field_list(int sock); /* * ustctl_tracepoint_field_list_get is used to iterate on the tp field * list handle. End is iteration is reached when -LTTNG_UST_ERR_NOENT is * returned. */ int ustctl_tracepoint_field_list_get(int sock, int tp_field_list_handle, struct lttng_ust_field_iter *iter); int ustctl_tracer_version(int sock, struct lttng_ust_tracer_version *v); int ustctl_wait_quiescent(int sock); int ustctl_sock_flush_buffer(int sock, struct lttng_ust_object_data *object); int ustctl_calibrate(int sock, struct lttng_ust_calibrate *calibrate); /* Release object created by members of this API. */ int ustctl_release_object(int sock, struct lttng_ust_object_data *data); /* Release handle returned by create session. */ int ustctl_release_handle(int sock, int handle); int ustctl_recv_channel_from_consumer(int sock, struct lttng_ust_object_data **channel_data); int ustctl_recv_stream_from_consumer(int sock, struct lttng_ust_object_data **stream_data); int ustctl_send_channel_to_ust(int sock, int session_handle, struct lttng_ust_object_data *channel_data); int ustctl_send_stream_to_ust(int sock, struct lttng_ust_object_data *channel_data, struct lttng_ust_object_data *stream_data); /* * ustctl_duplicate_ust_object_data allocated a new object in "dest" if * it succeeds (returns 0). It must be released using * ustctl_release_object() and then freed with free(). */ int ustctl_duplicate_ust_object_data(struct lttng_ust_object_data **dest, struct lttng_ust_object_data *src); /* * API used by consumer. */ struct ustctl_consumer_channel; struct ustctl_consumer_stream; struct ustctl_consumer_channel_attr; struct ustctl_consumer_channel * ustctl_create_channel(struct ustctl_consumer_channel_attr *attr); /* * Each stream created needs to be destroyed before calling * ustctl_destroy_channel(). */ void ustctl_destroy_channel(struct ustctl_consumer_channel *chan); int ustctl_send_channel_to_sessiond(int sock, struct ustctl_consumer_channel *channel); int ustctl_channel_close_wait_fd(struct ustctl_consumer_channel *consumer_chan); int ustctl_channel_close_wakeup_fd(struct ustctl_consumer_channel *consumer_chan); int ustctl_channel_get_wait_fd(struct ustctl_consumer_channel *consumer_chan); int ustctl_channel_get_wakeup_fd(struct ustctl_consumer_channel *consumer_chan); int ustctl_write_metadata_to_channel( struct ustctl_consumer_channel *channel, const char *metadata_str, /* NOT null-terminated */ size_t len); /* metadata length */ ssize_t ustctl_write_one_packet_to_channel( struct ustctl_consumer_channel *channel, const char *metadata_str, /* NOT null-terminated */ size_t len); /* metadata length */ /* * Send a NULL stream to finish iteration over all streams of a given * channel. */ int ustctl_send_stream_to_sessiond(int sock, struct ustctl_consumer_stream *stream); int ustctl_stream_close_wait_fd(struct ustctl_consumer_stream *stream); int ustctl_stream_close_wakeup_fd(struct ustctl_consumer_stream *stream); int ustctl_stream_get_wait_fd(struct ustctl_consumer_stream *stream); int ustctl_stream_get_wakeup_fd(struct ustctl_consumer_stream *stream); /* Create/destroy stream buffers for read */ struct ustctl_consumer_stream * ustctl_create_stream(struct ustctl_consumer_channel *channel, int cpu); void ustctl_destroy_stream(struct ustctl_consumer_stream *stream); /* For mmap mode, readable without "get" operation */ int ustctl_get_mmap_len(struct ustctl_consumer_stream *stream, unsigned long *len); int ustctl_get_max_subbuf_size(struct ustctl_consumer_stream *stream, unsigned long *len); /* * For mmap mode, operate on the current packet (between get/put or * get_next/put_next). */ void *ustctl_get_mmap_base(struct ustctl_consumer_stream *stream); int ustctl_get_mmap_read_offset(struct ustctl_consumer_stream *stream, unsigned long *off); int ustctl_get_subbuf_size(struct ustctl_consumer_stream *stream, unsigned long *len); int ustctl_get_padded_subbuf_size(struct ustctl_consumer_stream *stream, unsigned long *len); int ustctl_get_next_subbuf(struct ustctl_consumer_stream *stream); int ustctl_put_next_subbuf(struct ustctl_consumer_stream *stream); /* snapshot */ int ustctl_snapshot(struct ustctl_consumer_stream *stream); int ustctl_snapshot_get_consumed(struct ustctl_consumer_stream *stream, unsigned long *pos); int ustctl_snapshot_get_produced(struct ustctl_consumer_stream *stream, unsigned long *pos); int ustctl_get_subbuf(struct ustctl_consumer_stream *stream, unsigned long *pos); int ustctl_put_subbuf(struct ustctl_consumer_stream *stream); void ustctl_flush_buffer(struct ustctl_consumer_stream *stream, int producer_active); /* index */ int ustctl_get_timestamp_begin(struct ustctl_consumer_stream *stream, uint64_t *timestamp_begin); int ustctl_get_timestamp_end(struct ustctl_consumer_stream *stream, uint64_t *timestamp_end); int ustctl_get_events_discarded(struct ustctl_consumer_stream *stream, uint64_t *events_discarded); int ustctl_get_content_size(struct ustctl_consumer_stream *stream, uint64_t *content_size); int ustctl_get_packet_size(struct ustctl_consumer_stream *stream, uint64_t *packet_size); int ustctl_get_stream_id(struct ustctl_consumer_stream *stream, uint64_t *stream_id); int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream, uint64_t *ts); /* event registry management */ enum ustctl_socket_type { USTCTL_SOCKET_CMD = 0, USTCTL_SOCKET_NOTIFY = 1, }; enum ustctl_notify_cmd { USTCTL_NOTIFY_CMD_EVENT = 0, USTCTL_NOTIFY_CMD_CHANNEL = 1, }; enum ustctl_channel_header { USTCTL_CHANNEL_HEADER_UNKNOWN = 0, USTCTL_CHANNEL_HEADER_COMPACT = 1, USTCTL_CHANNEL_HEADER_LARGE = 2, }; /* event type structures */ enum ustctl_abstract_types { ustctl_atype_integer, ustctl_atype_enum, ustctl_atype_array, ustctl_atype_sequence, ustctl_atype_string, ustctl_atype_float, NR_USTCTL_ABSTRACT_TYPES, }; enum ustctl_string_encodings { ustctl_encode_none = 0, ustctl_encode_UTF8 = 1, ustctl_encode_ASCII = 2, NR_USTCTL_STRING_ENCODINGS, }; #define USTCTL_UST_INTEGER_TYPE_PADDING 24 struct ustctl_integer_type { uint32_t size; /* in bits */ uint32_t signedness; uint32_t reverse_byte_order; uint32_t base; /* 2, 8, 10, 16, for pretty print */ enum ustctl_string_encodings encoding; uint16_t alignment; /* in bits */ char padding[USTCTL_UST_INTEGER_TYPE_PADDING]; } LTTNG_PACKED; #define USTCTL_UST_FLOAT_TYPE_PADDING 24 struct ustctl_float_type { uint32_t exp_dig; /* exponent digits, in bits */ uint32_t mant_dig; /* mantissa digits, in bits */ uint32_t reverse_byte_order; uint16_t alignment; /* in bits */ char padding[USTCTL_UST_FLOAT_TYPE_PADDING]; } LTTNG_PACKED; #define USTCTL_UST_BASIC_TYPE_PADDING 296 union _ustctl_basic_type { struct ustctl_integer_type integer; struct { enum ustctl_string_encodings encoding; } string; struct ustctl_float_type _float; char padding[USTCTL_UST_BASIC_TYPE_PADDING]; } LTTNG_PACKED; struct ustctl_basic_type { enum ustctl_abstract_types atype; union { union _ustctl_basic_type basic; } u; } LTTNG_PACKED; #define USTCTL_UST_TYPE_PADDING 128 struct ustctl_type { enum ustctl_abstract_types atype; union { union _ustctl_basic_type basic; struct { struct ustctl_basic_type elem_type; uint32_t length; /* num. elems. */ } array; struct { struct ustctl_basic_type length_type; struct ustctl_basic_type elem_type; } sequence; char padding[USTCTL_UST_TYPE_PADDING]; } u; } LTTNG_PACKED; #define USTCTL_UST_FIELD_PADDING 28 struct ustctl_field { char name[LTTNG_UST_SYM_NAME_LEN]; struct ustctl_type type; char padding[USTCTL_UST_FIELD_PADDING]; } LTTNG_PACKED; /* * Returns 0 on success, negative error value on error. * If an error other than -LTTNG_UST_ERR_UNSUP_MAJOR is returned, * the output fields are not populated. */ int ustctl_recv_reg_msg(int sock, enum ustctl_socket_type *type, uint32_t *major, uint32_t *minor, uint32_t *pid, uint32_t *ppid, uint32_t *uid, uint32_t *gid, uint32_t *bits_per_long, uint32_t *uint8_t_alignment, uint32_t *uint16_t_alignment, uint32_t *uint32_t_alignment, uint32_t *uint64_t_alignment, uint32_t *long_alignment, int *byte_order, char *name); /* size LTTNG_UST_ABI_PROCNAME_LEN */ /* * Returns 0 on success, negative UST or system error value on error. * Receive the notification command. The "notify_cmd" can then be used * by the caller to find out which ustctl_recv_* function should be * called to receive the notification, and which ustctl_reply_* is * appropriate. */ int ustctl_recv_notify(int sock, enum ustctl_notify_cmd *notify_cmd); /* * Returns 0 on success, negative UST or system error value on error. */ int ustctl_recv_register_event(int sock, int *session_objd, /* session descriptor (output) */ int *channel_objd, /* channel descriptor (output) */ char *event_name, /* * event name (output, * size LTTNG_UST_SYM_NAME_LEN) */ int *loglevel, char **signature, /* * event signature * (output, dynamically * allocated, must be free(3)'d * by the caller if function * returns success.) */ size_t *nr_fields, struct ustctl_field **fields, char **model_emf_uri); /* * Returns 0 on success, negative error value on error. */ int ustctl_reply_register_event(int sock, uint32_t id, /* event id (input) */ int ret_code); /* return code. 0 ok, negative error */ /* * Returns 0 on success, negative UST or system error value on error. */ int ustctl_recv_register_channel(int sock, int *session_objd, /* session descriptor (output) */ int *channel_objd, /* channel descriptor (output) */ size_t *nr_fields, /* context fields */ struct ustctl_field **fields); /* * Returns 0 on success, negative error value on error. */ int ustctl_reply_register_channel(int sock, uint32_t chan_id, enum ustctl_channel_header header_type, int ret_code); /* return code. 0 ok, negative error */ #endif /* _LTTNG_UST_CTL_H */ lttng-ust-2.4.0/include/lttng/ust-abi.h0000644000175000017500000002151012304151532014662 00000000000000#ifndef _LTTNG_UST_ABI_H #define _LTTNG_UST_ABI_H /* * lttng/ust-abi.h * * LTTng-UST ABI header * * Copyright 2010-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #ifndef __ust_stringify #define __ust_stringify1(x) #x #define __ust_stringify(x) __ust_stringify1(x) #endif /* __ust_stringify */ #define LTTNG_UST_SYM_NAME_LEN 256 #define LTTNG_UST_ABI_PROCNAME_LEN 16 /* UST comm magic number, used to validate protocol and endianness. */ #define LTTNG_UST_COMM_MAGIC 0xC57C57C5 /* Version for ABI between liblttng-ust, sessiond, consumerd */ #define LTTNG_UST_ABI_MAJOR_VERSION 5 #define LTTNG_UST_ABI_MINOR_VERSION 0 enum lttng_ust_instrumentation { LTTNG_UST_TRACEPOINT = 0, LTTNG_UST_PROBE = 1, LTTNG_UST_FUNCTION = 2, }; enum lttng_ust_loglevel_type { LTTNG_UST_LOGLEVEL_ALL = 0, LTTNG_UST_LOGLEVEL_RANGE = 1, LTTNG_UST_LOGLEVEL_SINGLE = 2, }; enum lttng_ust_output { LTTNG_UST_MMAP = 0, }; enum lttng_ust_chan_type { LTTNG_UST_CHAN_PER_CPU = 0, LTTNG_UST_CHAN_METADATA = 1, }; struct lttng_ust_tracer_version { uint32_t major; uint32_t minor; uint32_t patchlevel; } LTTNG_PACKED; #define LTTNG_UST_CHANNEL_PADDING (LTTNG_UST_SYM_NAME_LEN + 32) /* * Given that the consumerd is limited to 64k file descriptors, we * cannot expect much more than 1MB channel structure size. This size is * depends on the number of streams within a channel, which depends on * the number of possible CPUs on the system. */ #define LTTNG_UST_CHANNEL_DATA_MAX_LEN 1048576U struct lttng_ust_channel { uint64_t len; enum lttng_ust_chan_type type; char padding[LTTNG_UST_CHANNEL_PADDING]; char data[]; /* variable sized data */ } LTTNG_PACKED; #define LTTNG_UST_STREAM_PADDING1 (LTTNG_UST_SYM_NAME_LEN + 32) struct lttng_ust_stream { uint64_t len; /* shm len */ uint32_t stream_nr; /* stream number */ char padding[LTTNG_UST_STREAM_PADDING1]; /* * shm_fd and wakeup_fd are send over unix socket as file * descriptors after this structure. */ } LTTNG_PACKED; #define LTTNG_UST_EVENT_PADDING1 16 #define LTTNG_UST_EVENT_PADDING2 (LTTNG_UST_SYM_NAME_LEN + 32) struct lttng_ust_event { enum lttng_ust_instrumentation instrumentation; char name[LTTNG_UST_SYM_NAME_LEN]; /* event name */ enum lttng_ust_loglevel_type loglevel_type; int loglevel; /* value, -1: all */ char padding[LTTNG_UST_EVENT_PADDING1]; /* Per instrumentation type configuration */ union { char padding[LTTNG_UST_EVENT_PADDING2]; } u; } LTTNG_PACKED; enum lttng_ust_field_type { LTTNG_UST_FIELD_OTHER = 0, LTTNG_UST_FIELD_INTEGER = 1, LTTNG_UST_FIELD_ENUM = 2, LTTNG_UST_FIELD_FLOAT = 3, LTTNG_UST_FIELD_STRING = 4, }; #define LTTNG_UST_FIELD_ITER_PADDING (LTTNG_UST_SYM_NAME_LEN + 28) struct lttng_ust_field_iter { char event_name[LTTNG_UST_SYM_NAME_LEN]; char field_name[LTTNG_UST_SYM_NAME_LEN]; enum lttng_ust_field_type type; int loglevel; /* event loglevel */ int nowrite; char padding[LTTNG_UST_FIELD_ITER_PADDING]; } LTTNG_PACKED; enum lttng_ust_context_type { LTTNG_UST_CONTEXT_VTID = 0, LTTNG_UST_CONTEXT_VPID = 1, LTTNG_UST_CONTEXT_PTHREAD_ID = 2, LTTNG_UST_CONTEXT_PROCNAME = 3, LTTNG_UST_CONTEXT_IP = 4, }; #define LTTNG_UST_CONTEXT_PADDING1 16 #define LTTNG_UST_CONTEXT_PADDING2 (LTTNG_UST_SYM_NAME_LEN + 32) struct lttng_ust_context { enum lttng_ust_context_type ctx; char padding[LTTNG_UST_CONTEXT_PADDING1]; union { char padding[LTTNG_UST_CONTEXT_PADDING2]; } u; } LTTNG_PACKED; /* * Tracer channel attributes. */ #define LTTNG_UST_CHANNEL_ATTR_PADDING (LTTNG_UST_SYM_NAME_LEN + 32) struct lttng_ust_channel_attr { uint64_t subbuf_size; /* bytes */ uint64_t num_subbuf; /* power of 2 */ int overwrite; /* 1: overwrite, 0: discard */ unsigned int switch_timer_interval; /* usec */ unsigned int read_timer_interval; /* usec */ enum lttng_ust_output output; /* splice, mmap */ char padding[LTTNG_UST_CHANNEL_ATTR_PADDING]; } LTTNG_PACKED; #define LTTNG_UST_TRACEPOINT_ITER_PADDING 16 struct lttng_ust_tracepoint_iter { char name[LTTNG_UST_SYM_NAME_LEN]; /* provider:name */ int loglevel; char padding[LTTNG_UST_TRACEPOINT_ITER_PADDING]; } LTTNG_PACKED; enum lttng_ust_object_type { LTTNG_UST_OBJECT_TYPE_UNKNOWN = -1, LTTNG_UST_OBJECT_TYPE_CHANNEL = 0, LTTNG_UST_OBJECT_TYPE_STREAM = 1, LTTNG_UST_OBJECT_TYPE_EVENT = 2, LTTNG_UST_OBJECT_TYPE_CONTEXT = 3, }; #define LTTNG_UST_OBJECT_DATA_PADDING1 32 #define LTTNG_UST_OBJECT_DATA_PADDING2 (LTTNG_UST_SYM_NAME_LEN + 32) struct lttng_ust_object_data { enum lttng_ust_object_type type; int handle; uint64_t size; char padding1[LTTNG_UST_OBJECT_DATA_PADDING1]; union { struct { void *data; enum lttng_ust_chan_type type; int wakeup_fd; } channel; struct { int shm_fd; int wakeup_fd; uint32_t stream_nr; } stream; char padding2[LTTNG_UST_OBJECT_DATA_PADDING2]; } u; } LTTNG_PACKED; enum lttng_ust_calibrate_type { LTTNG_UST_CALIBRATE_TRACEPOINT, }; #define LTTNG_UST_CALIBRATE_PADDING1 16 #define LTTNG_UST_CALIBRATE_PADDING2 (LTTNG_UST_SYM_NAME_LEN + 32) struct lttng_ust_calibrate { enum lttng_ust_calibrate_type type; /* type (input) */ char padding[LTTNG_UST_CALIBRATE_PADDING1]; union { char padding[LTTNG_UST_CALIBRATE_PADDING2]; } u; } LTTNG_PACKED; #define FILTER_BYTECODE_MAX_LEN 65536 #define LTTNG_UST_FILTER_PADDING 32 struct lttng_ust_filter_bytecode { uint32_t len; uint32_t reloc_offset; uint64_t seqnum; char padding[LTTNG_UST_FILTER_PADDING]; char data[0]; } LTTNG_PACKED; #define LTTNG_UST_EXCLUSION_PADDING 32 struct lttng_ust_event_exclusion { uint32_t count; char padding[LTTNG_UST_EXCLUSION_PADDING]; char names[LTTNG_UST_SYM_NAME_LEN][0]; } LTTNG_PACKED; #define _UST_CMD(minor) (minor) #define _UST_CMDR(minor, type) (minor) #define _UST_CMDW(minor, type) (minor) /* Handled by object descriptor */ #define LTTNG_UST_RELEASE _UST_CMD(0x1) /* Handled by object cmd */ /* LTTng-UST commands */ #define LTTNG_UST_SESSION _UST_CMD(0x40) #define LTTNG_UST_TRACER_VERSION \ _UST_CMDR(0x41, struct lttng_ust_tracer_version) #define LTTNG_UST_TRACEPOINT_LIST _UST_CMD(0x42) #define LTTNG_UST_WAIT_QUIESCENT _UST_CMD(0x43) #define LTTNG_UST_REGISTER_DONE _UST_CMD(0x44) #define LTTNG_UST_TRACEPOINT_FIELD_LIST _UST_CMD(0x45) /* Session FD commands */ #define LTTNG_UST_CHANNEL \ _UST_CMDW(0x51, struct lttng_ust_channel) #define LTTNG_UST_SESSION_START _UST_CMD(0x52) #define LTTNG_UST_SESSION_STOP _UST_CMD(0x53) /* Channel FD commands */ #define LTTNG_UST_STREAM _UST_CMD(0x60) #define LTTNG_UST_EVENT \ _UST_CMDW(0x61, struct lttng_ust_event) /* Event and Channel FD commands */ #define LTTNG_UST_CONTEXT \ _UST_CMDW(0x70, struct lttng_ust_context) #define LTTNG_UST_FLUSH_BUFFER \ _UST_CMD(0x71) /* Event, Channel and Session commands */ #define LTTNG_UST_ENABLE _UST_CMD(0x80) #define LTTNG_UST_DISABLE _UST_CMD(0x81) /* Tracepoint list commands */ #define LTTNG_UST_TRACEPOINT_LIST_GET _UST_CMD(0x90) #define LTTNG_UST_TRACEPOINT_FIELD_LIST_GET _UST_CMD(0x91) /* Event FD commands */ #define LTTNG_UST_FILTER _UST_CMD(0xA0) #define LTTNG_UST_EXCLUSION _UST_CMD(0xA1) #define LTTNG_UST_ROOT_HANDLE 0 struct lttng_ust_obj; union ust_args { struct { void *chan_data; int wakeup_fd; } channel; struct { int shm_fd; int wakeup_fd; } stream; struct { struct lttng_ust_field_iter entry; } field_list; }; struct lttng_ust_objd_ops { long (*cmd)(int objd, unsigned int cmd, unsigned long arg, union ust_args *args, void *owner); int (*release)(int objd); }; /* Create root handle. Always ID 0. */ int lttng_abi_create_root_handle(void); const struct lttng_ust_objd_ops *objd_ops(int id); int lttng_ust_objd_unref(int id, int is_owner); void lttng_ust_abi_exit(void); void lttng_ust_events_exit(void); void lttng_ust_objd_table_owner_cleanup(void *owner); #endif /* _LTTNG_UST_ABI_H */ lttng-ust-2.4.0/include/lttng/align.h0000644000175000017500000000553312301711267014423 00000000000000#ifndef _UST_ALIGN_H #define _UST_ALIGN_H /* * lttng/align.h * * (C) Copyright 2010-2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #ifndef PAGE_SIZE /* Cygwin limits.h defines its own PAGE_SIZE */ #define PAGE_SIZE sysconf(_SC_PAGE_SIZE) #endif #define PAGE_MASK (~(PAGE_SIZE - 1)) #define __ALIGN_MASK(v, mask) (((v) + (mask)) & ~(mask)) #define ALIGN(v, align) __ALIGN_MASK(v, (__typeof__(v)) (align) - 1) #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) /** * offset_align - Calculate the offset needed to align an object on its natural * alignment towards higher addresses. * @align_drift: object offset from an "alignment"-aligned address. * @alignment: natural object alignment. Must be non-zero, power of 2. * * Returns the offset that must be added to align towards higher * addresses. */ #define offset_align(align_drift, alignment) \ ({ \ LTTNG_BUILD_RUNTIME_BUG_ON((alignment) == 0 \ || ((alignment) & ((alignment) - 1))); \ (((alignment) - (align_drift)) & ((alignment) - 1)); \ }) /** * offset_align_floor - Calculate the offset needed to align an object * on its natural alignment towards lower addresses. * @align_drift: object offset from an "alignment"-aligned address. * @alignment: natural object alignment. Must be non-zero, power of 2. * * Returns the offset that must be substracted to align towards lower addresses. */ #define offset_align_floor(align_drift, alignment) \ ({ \ LTTNG_BUILD_RUNTIME_BUG_ON((alignment) == 0 \ || ((alignment) & ((alignment) - 1))); \ (((align_drift) - (alignment)) & ((alignment) - 1); \ }) #endif /* _UST_ALIGN_H */ lttng-ust-2.4.0/include/lttng/tracepoint-rcu.h0000644000175000017500000000355312244163736016300 00000000000000#ifndef _LTTNG_TRACEPOINT_RCU_H #define _LTTNG_TRACEPOINT_RCU_H /* * Copyright 2011-2012 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #ifdef _LGPL_SOURCE #include #define tp_rcu_read_lock_bp rcu_read_lock_bp #define tp_rcu_read_unlock_bp rcu_read_unlock_bp #define tp_rcu_dereference_bp rcu_dereference #define TP_RCU_LINK_TEST() 1 #else /* _LGPL_SOURCE */ #define tp_rcu_read_lock_bp tracepoint_dlopen.rcu_read_lock_sym_bp #define tp_rcu_read_unlock_bp tracepoint_dlopen.rcu_read_unlock_sym_bp #define tp_rcu_dereference_bp(p) \ URCU_FORCE_CAST(__typeof__(p), \ tracepoint_dlopen.rcu_dereference_sym_bp(URCU_FORCE_CAST(void *, p))) #define TP_RCU_LINK_TEST() tp_rcu_read_lock_bp #endif /* _LGPL_SOURCE */ #endif /* _LTTNG_TRACEPOINT_RCU_H */ lttng-ust-2.4.0/include/lttng/bitfield.h0000644000175000017500000003316712275157353015131 00000000000000#ifndef _BABELTRACE_BITFIELD_H #define _BABELTRACE_BITFIELD_H /* * BabelTrace * * Bitfields read/write functions. * * Copyright 2010 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include /* C99 5.2.4.2 Numerical limits */ #include /* C99 5.2.4.2 Numerical limits */ #include /* Non-standard BIG_ENDIAN, LITTLE_ENDIAN, BYTE_ORDER */ /* We can't shift a int from 32 bit, >> 32 and << 32 on int is undefined */ #define _bt_piecewise_rshift(_v, _shift) \ ({ \ __typeof__(_v) ___v = (_v); \ __typeof__(_shift) ___shift = (_shift); \ unsigned long sb = (___shift) / (sizeof(___v) * CHAR_BIT - 1); \ unsigned long final = (___shift) % (sizeof(___v) * CHAR_BIT - 1); \ \ for (; sb; sb--) \ ___v >>= sizeof(___v) * CHAR_BIT - 1; \ ___v >>= final; \ }) #define _bt_piecewise_lshift(_v, _shift) \ ({ \ __typeof__(_v) ___v = (_v); \ __typeof__(_shift) ___shift = (_shift); \ unsigned long sb = (___shift) / (sizeof(___v) * CHAR_BIT - 1); \ unsigned long final = (___shift) % (sizeof(___v) * CHAR_BIT - 1); \ \ for (; sb; sb--) \ ___v <<= sizeof(___v) * CHAR_BIT - 1; \ ___v <<= final; \ }) #define _bt_is_signed_type(type) ((type) -1 < (type) 0) #define _bt_unsigned_cast(type, v) \ ({ \ (sizeof(v) < sizeof(type)) ? \ ((type) (v)) & (~(~(type) 0 << (sizeof(v) * CHAR_BIT))) : \ (type) (v); \ }) /* * bt_bitfield_write - write integer to a bitfield in native endianness * * Save integer to the bitfield, which starts at the "start" bit, has "len" * bits. * The inside of a bitfield is from high bits to low bits. * Uses native endianness. * For unsigned "v", pad MSB with 0 if bitfield is larger than v. * For signed "v", sign-extend v if bitfield is larger than v. * * On little endian, bytes are placed from the less significant to the most * significant. Also, consecutive bitfields are placed from lower bits to higher * bits. * * On big endian, bytes are places from most significant to less significant. * Also, consecutive bitfields are placed from higher to lower bits. */ #define _bt_bitfield_write_le(_ptr, type, _start, _length, _v) \ do { \ __typeof__(_v) __v = (_v); \ type *__ptr = (void *) (_ptr); \ unsigned long __start = (_start), __length = (_length); \ type mask, cmask; \ unsigned long ts = sizeof(type) * CHAR_BIT; /* type size */ \ unsigned long start_unit, end_unit, this_unit; \ unsigned long end, cshift; /* cshift is "complement shift" */ \ \ if (!__length) \ break; \ \ end = __start + __length; \ start_unit = __start / ts; \ end_unit = (end + (ts - 1)) / ts; \ \ /* Trim v high bits */ \ if (__length < sizeof(__v) * CHAR_BIT) \ __v &= ~((~(__typeof__(__v)) 0) << __length); \ \ /* We can now append v with a simple "or", shift it piece-wise */ \ this_unit = start_unit; \ if (start_unit == end_unit - 1) { \ mask = ~((~(type) 0) << (__start % ts)); \ if (end % ts) \ mask |= (~(type) 0) << (end % ts); \ cmask = (type) __v << (__start % ts); \ cmask &= ~mask; \ __ptr[this_unit] &= mask; \ __ptr[this_unit] |= cmask; \ break; \ } \ if (__start % ts) { \ cshift = __start % ts; \ mask = ~((~(type) 0) << cshift); \ cmask = (type) __v << cshift; \ cmask &= ~mask; \ __ptr[this_unit] &= mask; \ __ptr[this_unit] |= cmask; \ __v = _bt_piecewise_rshift(__v, ts - cshift); \ __start += ts - cshift; \ this_unit++; \ } \ for (; this_unit < end_unit - 1; this_unit++) { \ __ptr[this_unit] = (type) __v; \ __v = _bt_piecewise_rshift(__v, ts); \ __start += ts; \ } \ if (end % ts) { \ mask = (~(type) 0) << (end % ts); \ cmask = (type) __v; \ cmask &= ~mask; \ __ptr[this_unit] &= mask; \ __ptr[this_unit] |= cmask; \ } else \ __ptr[this_unit] = (type) __v; \ } while (0) #define _bt_bitfield_write_be(_ptr, type, _start, _length, _v) \ do { \ __typeof__(_v) __v = (_v); \ type *__ptr = (void *) (_ptr); \ unsigned long __start = (_start), __length = (_length); \ type mask, cmask; \ unsigned long ts = sizeof(type) * CHAR_BIT; /* type size */ \ unsigned long start_unit, end_unit, this_unit; \ unsigned long end, cshift; /* cshift is "complement shift" */ \ \ if (!__length) \ break; \ \ end = __start + __length; \ start_unit = __start / ts; \ end_unit = (end + (ts - 1)) / ts; \ \ /* Trim v high bits */ \ if (__length < sizeof(__v) * CHAR_BIT) \ __v &= ~((~(__typeof__(__v)) 0) << __length); \ \ /* We can now append v with a simple "or", shift it piece-wise */ \ this_unit = end_unit - 1; \ if (start_unit == end_unit - 1) { \ mask = ~((~(type) 0) << ((ts - (end % ts)) % ts)); \ if (__start % ts) \ mask |= (~((type) 0)) << (ts - (__start % ts)); \ cmask = (type) __v << ((ts - (end % ts)) % ts); \ cmask &= ~mask; \ __ptr[this_unit] &= mask; \ __ptr[this_unit] |= cmask; \ break; \ } \ if (end % ts) { \ cshift = end % ts; \ mask = ~((~(type) 0) << (ts - cshift)); \ cmask = (type) __v << (ts - cshift); \ cmask &= ~mask; \ __ptr[this_unit] &= mask; \ __ptr[this_unit] |= cmask; \ __v = _bt_piecewise_rshift(__v, cshift); \ end -= cshift; \ this_unit--; \ } \ for (; (long) this_unit >= (long) start_unit + 1; this_unit--) { \ __ptr[this_unit] = (type) __v; \ __v = _bt_piecewise_rshift(__v, ts); \ end -= ts; \ } \ if (__start % ts) { \ mask = (~(type) 0) << (ts - (__start % ts)); \ cmask = (type) __v; \ cmask &= ~mask; \ __ptr[this_unit] &= mask; \ __ptr[this_unit] |= cmask; \ } else \ __ptr[this_unit] = (type) __v; \ } while (0) /* * bt_bitfield_write - write integer to a bitfield in native endianness * bt_bitfield_write_le - write integer to a bitfield in little endian * bt_bitfield_write_be - write integer to a bitfield in big endian */ #if (BYTE_ORDER == LITTLE_ENDIAN) #define bt_bitfield_write(ptr, type, _start, _length, _v) \ _bt_bitfield_write_le(ptr, type, _start, _length, _v) #define bt_bitfield_write_le(ptr, type, _start, _length, _v) \ _bt_bitfield_write_le(ptr, type, _start, _length, _v) #define bt_bitfield_write_be(ptr, type, _start, _length, _v) \ _bt_bitfield_write_be(ptr, unsigned char, _start, _length, _v) #elif (BYTE_ORDER == BIG_ENDIAN) #define bt_bitfield_write(ptr, type, _start, _length, _v) \ _bt_bitfield_write_be(ptr, type, _start, _length, _v) #define bt_bitfield_write_le(ptr, type, _start, _length, _v) \ _bt_bitfield_write_le(ptr, unsigned char, _start, _length, _v) #define bt_bitfield_write_be(ptr, type, _start, _length, _v) \ _bt_bitfield_write_be(ptr, type, _start, _length, _v) #else /* (BYTE_ORDER == PDP_ENDIAN) */ #error "Byte order not supported" #endif #define _bt_bitfield_read_le(_ptr, type, _start, _length, _vptr) \ do { \ __typeof__(*(_vptr)) *__vptr = (_vptr); \ __typeof__(*__vptr) __v; \ type *__ptr = (void *) (_ptr); \ unsigned long __start = (_start), __length = (_length); \ type mask, cmask; \ unsigned long ts = sizeof(type) * CHAR_BIT; /* type size */ \ unsigned long start_unit, end_unit, this_unit; \ unsigned long end, cshift; /* cshift is "complement shift" */ \ \ if (!__length) { \ *__vptr = 0; \ break; \ } \ \ end = __start + __length; \ start_unit = __start / ts; \ end_unit = (end + (ts - 1)) / ts; \ \ this_unit = end_unit - 1; \ if (_bt_is_signed_type(__typeof__(__v)) \ && (__ptr[this_unit] & ((type) 1 << ((end % ts ? : ts) - 1)))) \ __v = ~(__typeof__(__v)) 0; \ else \ __v = 0; \ if (start_unit == end_unit - 1) { \ cmask = __ptr[this_unit]; \ cmask >>= (__start % ts); \ if ((end - __start) % ts) { \ mask = ~((~(type) 0) << (end - __start)); \ cmask &= mask; \ } \ __v = _bt_piecewise_lshift(__v, end - __start); \ __v |= _bt_unsigned_cast(__typeof__(__v), cmask); \ *__vptr = __v; \ break; \ } \ if (end % ts) { \ cshift = end % ts; \ mask = ~((~(type) 0) << cshift); \ cmask = __ptr[this_unit]; \ cmask &= mask; \ __v = _bt_piecewise_lshift(__v, cshift); \ __v |= _bt_unsigned_cast(__typeof__(__v), cmask); \ end -= cshift; \ this_unit--; \ } \ for (; (long) this_unit >= (long) start_unit + 1; this_unit--) { \ __v = _bt_piecewise_lshift(__v, ts); \ __v |= _bt_unsigned_cast(__typeof__(__v), __ptr[this_unit]);\ end -= ts; \ } \ if (__start % ts) { \ mask = ~((~(type) 0) << (ts - (__start % ts))); \ cmask = __ptr[this_unit]; \ cmask >>= (__start % ts); \ cmask &= mask; \ __v = _bt_piecewise_lshift(__v, ts - (__start % ts)); \ __v |= _bt_unsigned_cast(__typeof__(__v), cmask); \ } else { \ __v = _bt_piecewise_lshift(__v, ts); \ __v |= _bt_unsigned_cast(__typeof__(__v), __ptr[this_unit]);\ } \ *__vptr = __v; \ } while (0) #define _bt_bitfield_read_be(_ptr, type, _start, _length, _vptr) \ do { \ __typeof__(*(_vptr)) *__vptr = (_vptr); \ __typeof__(*__vptr) __v; \ type *__ptr = (void *) (_ptr); \ unsigned long __start = (_start), __length = (_length); \ type mask, cmask; \ unsigned long ts = sizeof(type) * CHAR_BIT; /* type size */ \ unsigned long start_unit, end_unit, this_unit; \ unsigned long end, cshift; /* cshift is "complement shift" */ \ \ if (!__length) { \ *__vptr = 0; \ break; \ } \ \ end = __start + __length; \ start_unit = __start / ts; \ end_unit = (end + (ts - 1)) / ts; \ \ this_unit = start_unit; \ if (_bt_is_signed_type(__typeof__(__v)) \ && (__ptr[this_unit] & ((type) 1 << (ts - (__start % ts) - 1)))) \ __v = ~(__typeof__(__v)) 0; \ else \ __v = 0; \ if (start_unit == end_unit - 1) { \ cmask = __ptr[this_unit]; \ cmask >>= (ts - (end % ts)) % ts; \ if ((end - __start) % ts) { \ mask = ~((~(type) 0) << (end - __start)); \ cmask &= mask; \ } \ __v = _bt_piecewise_lshift(__v, end - __start); \ __v |= _bt_unsigned_cast(__typeof__(__v), cmask); \ *__vptr = __v; \ break; \ } \ if (__start % ts) { \ cshift = __start % ts; \ mask = ~((~(type) 0) << (ts - cshift)); \ cmask = __ptr[this_unit]; \ cmask &= mask; \ __v = _bt_piecewise_lshift(__v, ts - cshift); \ __v |= _bt_unsigned_cast(__typeof__(__v), cmask); \ __start += ts - cshift; \ this_unit++; \ } \ for (; this_unit < end_unit - 1; this_unit++) { \ __v = _bt_piecewise_lshift(__v, ts); \ __v |= _bt_unsigned_cast(__typeof__(__v), __ptr[this_unit]);\ __start += ts; \ } \ if (end % ts) { \ mask = ~((~(type) 0) << (end % ts)); \ cmask = __ptr[this_unit]; \ cmask >>= ts - (end % ts); \ cmask &= mask; \ __v = _bt_piecewise_lshift(__v, end % ts); \ __v |= _bt_unsigned_cast(__typeof__(__v), cmask); \ } else { \ __v = _bt_piecewise_lshift(__v, ts); \ __v |= _bt_unsigned_cast(__typeof__(__v), __ptr[this_unit]);\ } \ *__vptr = __v; \ } while (0) /* * bt_bitfield_read - read integer from a bitfield in native endianness * bt_bitfield_read_le - read integer from a bitfield in little endian * bt_bitfield_read_be - read integer from a bitfield in big endian */ #if (BYTE_ORDER == LITTLE_ENDIAN) #define bt_bitfield_read(_ptr, type, _start, _length, _vptr) \ _bt_bitfield_read_le(_ptr, type, _start, _length, _vptr) #define bt_bitfield_read_le(_ptr, type, _start, _length, _vptr) \ _bt_bitfield_read_le(_ptr, type, _start, _length, _vptr) #define bt_bitfield_read_be(_ptr, type, _start, _length, _vptr) \ _bt_bitfield_read_be(_ptr, unsigned char, _start, _length, _vptr) #elif (BYTE_ORDER == BIG_ENDIAN) #define bt_bitfield_read(_ptr, type, _start, _length, _vptr) \ _bt_bitfield_read_be(_ptr, type, _start, _length, _vptr) #define bt_bitfield_read_le(_ptr, type, _start, _length, _vptr) \ _bt_bitfield_read_le(_ptr, unsigned char, _start, _length, _vptr) #define bt_bitfield_read_be(_ptr, type, _start, _length, _vptr) \ _bt_bitfield_read_be(_ptr, type, _start, _length, _vptr) #else /* (BYTE_ORDER == PDP_ENDIAN) */ #error "Byte order not supported" #endif #endif /* _BABELTRACE_BITFIELD_H */ lttng-ust-2.4.0/include/lttng/ust-tracepoint-event-reset.h0000644000175000017500000000677212200722032020545 00000000000000/* * Copyright (c) 2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ /* Define to "nothing" all macros used for TRACEPOINT_EVENT */ #undef TRACEPOINT_EVENT_CLASS #define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) #undef TRACEPOINT_EVENT_INSTANCE #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) #undef TP_ARGS #define TP_ARGS(...) #undef TP_FIELDS #define TP_FIELDS(...) #undef TRACEPOINT_LOGLEVEL_ENUM #define TRACEPOINT_LOGLEVEL_ENUM(...) #undef TRACEPOINT_LOGLEVEL #define TRACEPOINT_LOGLEVEL(provider, name, loglevel) #undef TRACEPOINT_MODEL_EMF_URI #define TRACEPOINT_MODEL_EMF_URI(provider, name, uri) #undef _ctf_integer_ext #define _ctf_integer_ext(_type, _item, _src, _byte_order, _base, \ _nowrite) #undef _ctf_float #define _ctf_float(_type, _item, _src, _nowrite) #undef _ctf_array_encoded #define _ctf_array_encoded(_type, _item, _src, _length, _encoding, \ _nowrite) #undef _ctf_sequence_encoded #define _ctf_sequence_encoded(_type, _item, _src, _length_type, \ _src_length, _encoding, _nowrite) #undef _ctf_string #define _ctf_string(_item, _src, _nowrite) /* "write" */ #undef ctf_integer #define ctf_integer(_type, _item, _src) #undef ctf_integer_hex #define ctf_integer_hex(_type, _item, _src) #undef ctf_integer_network #define ctf_integer_network(_type, _item, _src) #undef ctf_integer_network_hex #define ctf_integer_network_hex(_type, _item, _src) #undef ctf_float #define ctf_float(_type, _item, _src) #undef ctf_array #define ctf_array(_type, _item, _src, _length) #undef ctf_array_text #define ctf_array_text(_type, _item, _src, _length) #undef ctf_sequence #define ctf_sequence(_type, _item, _src, _length_type, _src_length) #undef ctf_sequence_text #define ctf_sequence_text(_type, _item, _src, _length_type, _src_length) #undef ctf_string #define ctf_string(_item, _src) /* "nowrite" */ #undef ctf_integer_nowrite #define ctf_integer_nowrite(_type, _item, _src) #undef ctf_float_nowrite #define ctf_float_nowrite(_type, _item, _src) #undef ctf_array_nowrite #define ctf_array_nowrite(_type, _item, _src, _length) #undef ctf_array_text_nowrite #define ctf_array_text_nowrite(_type, _item, _src, _length) #undef ctf_sequence_nowrite #define ctf_sequence_nowrite(_type, _item, _src, _length_type, _src_length) #undef ctf_sequence_text_nowrite #define ctf_sequence_text_nowrite(_type, _item, _src, _length_type, _src_length) #undef ctf_string_nowrite #define ctf_string_nowrite(_item, _src) lttng-ust-2.4.0/include/lttng/tracepoint-event.h0000644000175000017500000000454312275157353016632 00000000000000/* * Copyright (c) 2011 - Mathieu Desnoyers * * 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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifdef TRACEPOINT_CREATE_PROBES #define __tp_stringify1(x) #x #define __tp_stringify(x) __tp_stringify1(x) #undef TRACEPOINT_EVENT_INSTANCE #define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) #undef TRACEPOINT_EVENT #define TRACEPOINT_EVENT(_provider, _name, _args, _fields) \ TRACEPOINT_EVENT_CLASS(_provider, _name, _TP_PARAMS(_args), \ _TP_PARAMS(_fields)) \ TRACEPOINT_EVENT_INSTANCE(_provider, _name, _name, \ _TP_PARAMS(_args)) #undef TRACEPOINT_CREATE_PROBES #define TRACEPOINT_HEADER_MULTI_READ /* * LTTng-UST 2.0 expects TRACEPOINT_INCLUDE_FILE, but this approach has * the unwanted side-effect of expanding any macro name found within * TRACEPOINT_INCLUDE_FILE. * * Starting from LTTng-UST 2.1, we expect the TRACEPOINT_INCLUDE to be * defined by probes as a string. We still check for * TRACEPOINT_INCLUDE_FILE for API backward compatibility. */ #ifdef TRACEPOINT_INCLUDE_FILE #define TRACEPOINT_INCLUDE __tp_stringify(TRACEPOINT_INCLUDE_FILE) #endif #include TRACEPOINT_INCLUDE #include #undef TRACEPOINT_HEADER_MULTI_READ #undef TRACEPOINT_INCLUDE_FILE #undef TRACEPOINT_INCLUDE #define TRACEPOINT_CREATE_PROBES #endif /* TRACEPOINT_CREATE_PROBES */ lttng-ust-2.4.0/include/ust-comm.h0000644000175000017500000001704212304151532013737 00000000000000#ifndef _LTTNG_UST_COMM_H #define _LTTNG_UST_COMM_H /* * Copyright (C) 2011 - David Goulet * Julien Desfossez * Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* * This header is meant for liblttng and libust internal use ONLY. * These declarations should NOT be considered stable API. */ #include #include #include #include #include #include /* * Default timeout the application waits for the sessiond to send its * "register done" command. Can be overridden with the environment * variable "LTTNG_UST_REGISTER_TIMEOUT". Note that if the sessiond is not * found, the application proceeds directly without any delay. */ #define LTTNG_UST_DEFAULT_CONSTRUCTOR_TIMEOUT_MS 3000 #define LTTNG_DEFAULT_RUNDIR LTTNG_SYSTEM_RUNDIR #define LTTNG_DEFAULT_HOME_RUNDIR ".lttng" /* Queue size of listen(2) */ #define LTTNG_UST_COMM_MAX_LISTEN 10 #define LTTNG_UST_COMM_REG_MSG_PADDING 64 struct lttng_event_field; struct lttng_ctx_field; struct ustctl_reg_msg { uint32_t magic; uint32_t major; uint32_t minor; uint32_t pid; uint32_t ppid; uint32_t uid; uint32_t gid; uint32_t bits_per_long; uint32_t uint8_t_alignment; uint32_t uint16_t_alignment; uint32_t uint32_t_alignment; uint32_t uint64_t_alignment; uint32_t long_alignment; uint32_t socket_type; /* enum ustctl_socket_type */ char name[LTTNG_UST_ABI_PROCNAME_LEN]; /* process name */ char padding[LTTNG_UST_COMM_REG_MSG_PADDING]; } LTTNG_PACKED; /* * Data structure for the commands sent from sessiond to UST. */ #define USTCOMM_MSG_PADDING1 32 #define USTCOMM_MSG_PADDING2 32 struct ustcomm_ust_msg { uint32_t handle; uint32_t cmd; char padding[USTCOMM_MSG_PADDING1]; union { struct lttng_ust_channel channel; struct lttng_ust_stream stream; struct lttng_ust_event event; struct lttng_ust_context context; struct lttng_ust_tracer_version version; struct lttng_ust_tracepoint_iter tracepoint; struct { uint32_t data_size; /* following filter data */ uint32_t reloc_offset; uint64_t seqnum; } LTTNG_PACKED filter; struct { uint32_t count; /* how many names follow */ } LTTNG_PACKED exclusion; char padding[USTCOMM_MSG_PADDING2]; } u; } LTTNG_PACKED; /* * Data structure for the response from UST to the session daemon. * cmd_type is sent back in the reply for validation. */ #define USTCOMM_REPLY_PADDING1 32 #define USTCOMM_REPLY_PADDING2 32 struct ustcomm_ust_reply { uint32_t handle; uint32_t cmd; int32_t ret_code; /* enum ustcomm_return_code */ uint32_t ret_val; /* return value */ char padding[USTCOMM_REPLY_PADDING1]; union { struct { uint64_t memory_map_size; } LTTNG_PACKED channel; struct { uint64_t memory_map_size; } LTTNG_PACKED stream; struct lttng_ust_tracer_version version; struct lttng_ust_tracepoint_iter tracepoint; char padding[USTCOMM_REPLY_PADDING2]; } u; } LTTNG_PACKED; struct ustcomm_notify_hdr { uint32_t notify_cmd; } LTTNG_PACKED; #define USTCOMM_NOTIFY_EVENT_MSG_PADDING 32 struct ustcomm_notify_event_msg { uint32_t session_objd; uint32_t channel_objd; char event_name[LTTNG_UST_SYM_NAME_LEN]; int32_t loglevel; uint32_t signature_len; uint32_t fields_len; uint32_t model_emf_uri_len; char padding[USTCOMM_NOTIFY_EVENT_MSG_PADDING]; /* followed by signature, fields, and model_emf_uri */ } LTTNG_PACKED; #define USTCOMM_NOTIFY_EVENT_REPLY_PADDING 32 struct ustcomm_notify_event_reply { int32_t ret_code; /* 0: ok, negative: error code */ uint32_t event_id; char padding[USTCOMM_NOTIFY_EVENT_REPLY_PADDING]; } LTTNG_PACKED; #define USTCOMM_NOTIFY_CHANNEL_MSG_PADDING 32 struct ustcomm_notify_channel_msg { uint32_t session_objd; uint32_t channel_objd; uint32_t ctx_fields_len; char padding[USTCOMM_NOTIFY_CHANNEL_MSG_PADDING]; /* followed by context fields */ } LTTNG_PACKED; #define USTCOMM_NOTIFY_CHANNEL_REPLY_PADDING 32 struct ustcomm_notify_channel_reply { int32_t ret_code; /* 0: ok, negative: error code */ uint32_t chan_id; uint32_t header_type; /* enum ustctl_channel_header */ char padding[USTCOMM_NOTIFY_CHANNEL_REPLY_PADDING]; } LTTNG_PACKED; /* * LTTNG_UST_TRACEPOINT_FIELD_LIST reply is followed by a * struct lttng_ust_field_iter field. */ extern int ustcomm_create_unix_sock(const char *pathname); extern int ustcomm_connect_unix_sock(const char *pathname); extern int ustcomm_accept_unix_sock(int sock); extern int ustcomm_listen_unix_sock(int sock); extern int ustcomm_close_unix_sock(int sock); extern ssize_t ustcomm_recv_unix_sock(int sock, void *buf, size_t len); extern ssize_t ustcomm_send_unix_sock(int sock, const void *buf, size_t len); extern ssize_t ustcomm_send_fds_unix_sock(int sock, int *fds, size_t nb_fd); extern ssize_t ustcomm_recv_fds_unix_sock(int sock, int *fds, size_t nb_fd); extern const char *ustcomm_get_readable_code(int code); extern int ustcomm_send_app_msg(int sock, struct ustcomm_ust_msg *lum); extern int ustcomm_recv_app_reply(int sock, struct ustcomm_ust_reply *lur, uint32_t expected_handle, uint32_t expected_cmd); extern int ustcomm_send_app_cmd(int sock, struct ustcomm_ust_msg *lum, struct ustcomm_ust_reply *lur); int ustcomm_recv_fd(int sock); ssize_t ustcomm_recv_channel_from_sessiond(int sock, void **chan_data, uint64_t len, int *wakeup_fd); int ustcomm_recv_stream_from_sessiond(int sock, uint64_t *memory_map_size, int *shm_fd, int *wakeup_fd); /* * Returns 0 on success, negative error value on error. * Returns -EPIPE or -ECONNRESET if other end has hung up. */ int ustcomm_send_reg_msg(int sock, enum ustctl_socket_type type, uint32_t bits_per_long, uint32_t uint8_t_alignment, uint32_t uint16_t_alignment, uint32_t uint32_t_alignment, uint32_t uint64_t_alignment, uint32_t long_alignment); /* * Returns 0 on success, negative error value on error. * Returns -EPIPE or -ECONNRESET if other end has hung up. */ int ustcomm_register_event(int sock, int session_objd, /* session descriptor */ int channel_objd, /* channel descriptor */ const char *event_name, /* event name (input) */ int loglevel, const char *signature, /* event signature (input) */ size_t nr_fields, /* fields */ const struct lttng_event_field *fields, const char *model_emf_uri, uint32_t *id); /* event id (output) */ /* * Returns 0 on success, negative error value on error. * Returns -EPIPE or -ECONNRESET if other end has hung up. */ int ustcomm_register_channel(int sock, int session_objd, /* session descriptor */ int channel_objd, /* channel descriptor */ size_t nr_ctx_fields, const struct lttng_ctx_field *ctx_fields, uint32_t *chan_id, /* channel id (output) */ int *header_type); /* header type (output) */ int ustcomm_setsockopt_rcv_timeout(int sock, unsigned int msec); int ustcomm_setsockopt_snd_timeout(int sock, unsigned int msec); #endif /* _LTTNG_UST_COMM_H */ lttng-ust-2.4.0/include/usterr.h0000644000175000017500000000640712167611342013531 00000000000000#ifndef _USTERR_H #define _USTERR_H /* * Copyright (C) 2009 Pierre-Marc Fournier * Copyright (C) 2011 Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; version 2.1 of * the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include "lttng/ust-tid.h" #include "share.h" enum ust_loglevel { UST_LOGLEVEL_UNKNOWN = 0, UST_LOGLEVEL_NORMAL, UST_LOGLEVEL_DEBUG, }; extern volatile enum ust_loglevel ust_loglevel; void init_usterr(void); static inline int ust_debug(void) { return ust_loglevel == UST_LOGLEVEL_DEBUG; } #ifndef UST_COMPONENT #define UST_COMPONENT libust #endif /* To stringify the expansion of a define */ #define XSTR(d) STR(d) #define STR(s) #s #define UST_STR_COMPONENT XSTR(UST_COMPONENT) #define ERRMSG(fmt, args...) \ do { \ fprintf(stderr, UST_STR_COMPONENT "[%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", \ (long) getpid(), \ (long) gettid(), \ ## args, \ __func__); \ } while(0) #ifdef LTTNG_UST_DEBUG # define DBG(fmt, args...) ERRMSG(fmt, ## args) # define DBG_raw(fmt, args...) \ do { \ fprintf(stderr, fmt, ## args); \ } while(0) #else # define DBG(fmt, args...) \ do { \ if (ust_debug()) \ ERRMSG(fmt, ## args); \ } while (0) # define DBG_raw(fmt, args...) \ do { \ if (ust_debug()) { \ fprintf(stderr, fmt, ## args); \ } \ } while(0) #endif #define WARN(fmt, args...) ERRMSG("Warning: " fmt, ## args) #define ERR(fmt, args...) ERRMSG("Error: " fmt, ## args) #define BUG(fmt, args...) ERRMSG("BUG: " fmt, ## args) #if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE)) /* * Version using XSI strerror_r. */ #define PERROR(call, args...)\ do { \ char buf[200] = "Error in strerror_r()"; \ strerror_r(errno, buf, sizeof(buf)); \ ERRMSG("Error: " call ": %s", ## args, buf); \ } while(0); #else /* * Version using GNU strerror_r, for linux with appropriate defines. */ #define PERROR(call, args...)\ do { \ char *buf; \ char tmp[200]; \ buf = strerror_r(errno, tmp, sizeof(tmp)); \ ERRMSG("Error: " call ": %s", ## args, buf); \ } while(0); #endif #define BUG_ON(condition) \ do { \ if (caa_unlikely(condition)) \ ERR("condition not respected (BUG) on line %s:%d", __FILE__, __LINE__); \ } while(0) #define WARN_ON(condition) \ do { \ if (caa_unlikely(condition)) \ WARN("condition not respected on line %s:%d", __FILE__, __LINE__); \ } while(0) #define WARN_ON_ONCE(condition) WARN_ON(condition) #endif /* _USTERR_H */ lttng-ust-2.4.0/liblttng-ust-comm/0000755000175000017500000000000012304153162014035 500000000000000lttng-ust-2.4.0/liblttng-ust-comm/lttng-ust-comm.c0000644000175000017500000006336112275157353017041 00000000000000/* * Copyright (C) 2011 - David Goulet * Copyright (C) 2011-2013 - Mathieu Desnoyers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; only * version 2.1 of the License. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../liblttng-ust/compat.h" #define USTCOMM_CODE_OFFSET(code) \ (code == LTTNG_UST_OK ? 0 : (code - LTTNG_UST_ERR + 1)) #define USTCOMM_MAX_SEND_FDS 4 /* * Human readable error message. */ static const char *ustcomm_readable_code[] = { [ USTCOMM_CODE_OFFSET(LTTNG_UST_OK) ] = "Success", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR) ] = "Unknown error", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_NOENT) ] = "No entry", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_EXIST) ] = "Object already exists", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_INVAL) ] = "Invalid argument", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_PERM) ] = "Permission denied", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_NOSYS) ] = "Not implemented", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_EXITING) ] = "Process is exiting", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_INVAL_MAGIC) ] = "Invalid magic number", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_INVAL_SOCKET_TYPE) ] = "Invalid socket type", [ USTCOMM_CODE_OFFSET(LTTNG_UST_ERR_UNSUP_MAJOR) ] = "Unsupported major version", }; /* * lttng_ust_strerror * * Receives positive error value. * Return ptr to string representing a human readable * error code from the ustcomm_return_code enum. */ const char *lttng_ust_strerror(int code) { if (code == LTTNG_UST_OK) return ustcomm_readable_code[USTCOMM_CODE_OFFSET(code)]; if (code < LTTNG_UST_ERR) return strerror(code); if (code >= LTTNG_UST_ERR_NR) code = LTTNG_UST_ERR; return ustcomm_readable_code[USTCOMM_CODE_OFFSET(code)]; } /* * ustcomm_connect_unix_sock * * Connect to unix socket using the path name. */ int ustcomm_connect_unix_sock(const char *pathname) { struct sockaddr_un sun; int fd, ret; /* * libust threads require the close-on-exec flag for all * resources so it does not leak file descriptors upon exec. */ fd = socket(PF_UNIX, SOCK_STREAM, 0); if (fd < 0) { PERROR("socket"); ret = -errno; goto error; } ret = fcntl(fd, F_SETFD, FD_CLOEXEC); if (ret < 0) { PERROR("fcntl"); ret = -errno; goto error_fcntl; } memset(&sun, 0, sizeof(sun)); sun.sun_family = AF_UNIX; strncpy(sun.sun_path, pathname, sizeof(sun.sun_path)); sun.sun_path[sizeof(sun.sun_path) - 1] = '\0'; ret = connect(fd, (struct sockaddr *) &sun, sizeof(sun)); if (ret < 0) { /* * Don't print message on connect ENOENT error, because * connect is used in normal execution to detect if * sessiond is alive. ENOENT is when the unix socket * file does not exist, and ECONNREFUSED is when the * file exists but no sessiond is listening. */ if (errno != ECONNREFUSED && errno != ECONNRESET && errno != ENOENT && errno != EACCES) PERROR("connect"); ret = -errno; if (ret == -ECONNREFUSED || ret == -ECONNRESET) ret = -EPIPE; goto error_connect; } return fd; error_connect: error_fcntl: { int closeret; closeret = close(fd); if (closeret) PERROR("close"); } error: return ret; } /* * ustcomm_accept_unix_sock * * Do an accept(2) on the sock and return the * new file descriptor. The socket MUST be bind(2) before. */ int ustcomm_accept_unix_sock(int sock) { int new_fd; struct sockaddr_un sun; socklen_t len = 0; /* Blocking call */ new_fd = accept(sock, (struct sockaddr *) &sun, &len); if (new_fd < 0) { if (errno != ECONNABORTED) PERROR("accept"); new_fd = -errno; if (new_fd == -ECONNABORTED) new_fd = -EPIPE; } return new_fd; } /* * ustcomm_create_unix_sock * * Creates a AF_UNIX local socket using pathname * bind the socket upon creation and return the fd. */ int ustcomm_create_unix_sock(const char *pathname) { struct sockaddr_un sun; int fd, ret; /* Create server socket */ if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) { PERROR("socket"); ret = -errno; goto error; } memset(&sun, 0, sizeof(sun)); sun.sun_family = AF_UNIX; strncpy(sun.sun_path, pathname, sizeof(sun.sun_path)); sun.sun_path[sizeof(sun.sun_path) - 1] = '\0'; /* Unlink the old file if present */ (void) unlink(pathname); ret = bind(fd, (struct sockaddr *) &sun, sizeof(sun)); if (ret < 0) { PERROR("bind"); ret = -errno; goto error_close; } return fd; error_close: { int closeret; closeret = close(fd); if (closeret) { PERROR("close"); } } error: return ret; } /* * ustcomm_listen_unix_sock * * Make the socket listen using LTTNG_UST_COMM_MAX_LISTEN. */ int ustcomm_listen_unix_sock(int sock) { int ret; ret = listen(sock, LTTNG_UST_COMM_MAX_LISTEN); if (ret < 0) { ret = -errno; PERROR("listen"); } return ret; } /* * ustcomm_close_unix_sock * * Shutdown cleanly a unix socket. */ int ustcomm_close_unix_sock(int sock) { int ret; ret = close(sock); if (ret < 0) { PERROR("close"); ret = -errno; } return ret; } /* * ustcomm_recv_unix_sock * * Receive data of size len in put that data into * the buf param. Using recvmsg API. * Return the size of received data. * Return 0 on orderly shutdown. */ ssize_t ustcomm_recv_unix_sock(int sock, void *buf, size_t len) { struct msghdr msg; struct iovec iov[1]; ssize_t ret = -1; size_t len_last; memset(&msg, 0, sizeof(msg)); iov[0].iov_base = buf; iov[0].iov_len = len; msg.msg_iov = iov; msg.msg_iovlen = 1; do { len_last = iov[0].iov_len; ret = recvmsg(sock, &msg, 0); if (ret > 0) { iov[0].iov_base += ret; iov[0].iov_len -= ret; assert(ret <= len_last); } } while ((ret > 0 && ret < len_last) || (ret < 0 && errno == EINTR)); if (ret < 0) { int shutret; if (errno != EPIPE && errno != ECONNRESET && errno != ECONNREFUSED) PERROR("recvmsg"); ret = -errno; if (ret == -ECONNRESET || ret == -ECONNREFUSED) ret = -EPIPE; shutret = shutdown(sock, SHUT_RDWR); if (shutret) ERR("Socket shutdown error"); } else if (ret > 0) { ret = len; } /* ret = 0 means an orderly shutdown. */ return ret; } /* * ustcomm_send_unix_sock * * Send buf data of size len. Using sendmsg API. * Return the size of sent data. */ ssize_t ustcomm_send_unix_sock(int sock, const void *buf, size_t len) { struct msghdr msg; struct iovec iov[1]; ssize_t ret; memset(&msg, 0, sizeof(msg)); iov[0].iov_base = (void *) buf; iov[0].iov_len = len; msg.msg_iov = iov; msg.msg_iovlen = 1; /* * Using the MSG_NOSIGNAL when sending data from sessiond to * libust, so libust does not receive an unhandled SIGPIPE or * SIGURG. The sessiond receiver side can be made more resilient * by ignoring SIGPIPE, but we don't have this luxury on the * libust side. */ do { ret = sendmsg(sock, &msg, MSG_NOSIGNAL); } while (ret < 0 && errno == EINTR); if (ret < 0) { int shutret; if (errno != EPIPE && errno != ECONNRESET) PERROR("sendmsg"); ret = -errno; if (ret == -ECONNRESET) ret = -EPIPE; shutret = shutdown(sock, SHUT_RDWR); if (shutret) ERR("Socket shutdown error"); } return ret; } /* * Send a message accompanied by fd(s) over a unix socket. * * Returns the size of data sent, or negative error value. */ ssize_t ustcomm_send_fds_unix_sock(int sock, int *fds, size_t nb_fd) { struct msghdr msg; struct cmsghdr *cmptr; struct iovec iov[1]; ssize_t ret = -1; unsigned int sizeof_fds = nb_fd * sizeof(int); char tmp[CMSG_SPACE(sizeof_fds)]; char dummy = 0; memset(&msg, 0, sizeof(msg)); memset(tmp, 0, CMSG_SPACE(sizeof_fds) * sizeof(char)); if (nb_fd > USTCOMM_MAX_SEND_FDS) return -EINVAL; msg.msg_control = (caddr_t)tmp; msg.msg_controllen = CMSG_LEN(sizeof_fds); cmptr = CMSG_FIRSTHDR(&msg); cmptr->cmsg_level = SOL_SOCKET; cmptr->cmsg_type = SCM_RIGHTS; cmptr->cmsg_len = CMSG_LEN(sizeof_fds); memcpy(CMSG_DATA(cmptr), fds, sizeof_fds); /* Sum of the length of all control messages in the buffer: */ msg.msg_controllen = cmptr->cmsg_len; iov[0].iov_base = &dummy; iov[0].iov_len = 1; msg.msg_iov = iov; msg.msg_iovlen = 1; do { ret = sendmsg(sock, &msg, 0); } while (ret < 0 && errno == EINTR); if (ret < 0) { /* * We consider EPIPE and ECONNRESET as expected. */ if (errno != EPIPE && errno != ECONNRESET) { PERROR("sendmsg"); } ret = -errno; if (ret == -ECONNRESET) ret = -EPIPE; } return ret; } /* * Recv a message accompanied by fd(s) from a unix socket. * * Returns the size of received data, or negative error value. * * Expect at most "nb_fd" file descriptors. Returns the number of fd * actually received in nb_fd. * Returns -EPIPE on orderly shutdown. */ ssize_t ustcomm_recv_fds_unix_sock(int sock, int *fds, size_t nb_fd) { struct iovec iov[1]; ssize_t ret = 0; struct cmsghdr *cmsg; size_t sizeof_fds = nb_fd * sizeof(int); char recv_fd[CMSG_SPACE(sizeof_fds)]; struct msghdr msg; char dummy; memset(&msg, 0, sizeof(msg)); /* Prepare to receive the structures */ iov[0].iov_base = &dummy; iov[0].iov_len = 1; msg.msg_iov = iov; msg.msg_iovlen = 1; msg.msg_control = recv_fd; msg.msg_controllen = sizeof(recv_fd); do { ret = recvmsg(sock, &msg, 0); } while (ret < 0 && errno == EINTR); if (ret < 0) { if (errno != EPIPE && errno != ECONNRESET) { PERROR("recvmsg fds"); } ret = -errno; if (ret == -ECONNRESET) ret = -EPIPE; goto end; } if (ret == 0) { /* orderly shutdown */ ret = -EPIPE; goto end; } if (ret != 1) { ERR("Error: Received %zd bytes, expected %d\n", ret, 1); goto end; } if (msg.msg_flags & MSG_CTRUNC) { ERR("Error: Control message truncated.\n"); ret = -1; goto end; } cmsg = CMSG_FIRSTHDR(&msg); if (!cmsg) { ERR("Error: Invalid control message header\n"); ret = -1; goto end; } if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { ERR("Didn't received any fd\n"); ret = -1; goto end; } if (cmsg->cmsg_len != CMSG_LEN(sizeof_fds)) { ERR("Error: Received %zu bytes of ancillary data, expected %zu\n", (size_t) cmsg->cmsg_len, (size_t) CMSG_LEN(sizeof_fds)); ret = -1; goto end; } memcpy(fds, CMSG_DATA(cmsg), sizeof_fds); ret = sizeof_fds; end: return ret; } int ustcomm_send_app_msg(int sock, struct ustcomm_ust_msg *lum) { ssize_t len; len = ustcomm_send_unix_sock(sock, lum, sizeof(*lum)); switch (len) { case sizeof(*lum): break; default: if (len < 0) { return len; } else { ERR("incorrect message size: %zd\n", len); return -EINVAL; } } return 0; } int ustcomm_recv_app_reply(int sock, struct ustcomm_ust_reply *lur, uint32_t expected_handle, uint32_t expected_cmd) { ssize_t len; memset(lur, 0, sizeof(*lur)); len = ustcomm_recv_unix_sock(sock, lur, sizeof(*lur)); switch (len) { case 0: /* orderly shutdown */ return -EPIPE; case sizeof(*lur): if (lur->handle != expected_handle) { ERR("Unexpected result message handle: " "expected: %u vs received: %u\n", expected_handle, lur->handle); return -EINVAL; } if (lur->cmd != expected_cmd) { ERR("Unexpected result message command " "expected: %u vs received: %u\n", expected_cmd, lur->cmd); return -EINVAL; } return lur->ret_code; default: if (len >= 0) { ERR("incorrect message size: %zd\n", len); } return len; } } int ustcomm_send_app_cmd(int sock, struct ustcomm_ust_msg *lum, struct ustcomm_ust_reply *lur) { int ret; ret = ustcomm_send_app_msg(sock, lum); if (ret) return ret; ret = ustcomm_recv_app_reply(sock, lur, lum->handle, lum->cmd); if (ret > 0) return -EIO; return ret; } /* * chan_data is allocated internally if this function returns the * expected var_len. */ ssize_t ustcomm_recv_channel_from_sessiond(int sock, void **_chan_data, uint64_t var_len, int *_wakeup_fd) { void *chan_data; ssize_t len, nr_fd; int wakeup_fd; if (var_len > LTTNG_UST_CHANNEL_DATA_MAX_LEN) { len = -EINVAL; goto error_check; } /* Receive variable length data */ chan_data = zmalloc(var_len); if (!chan_data) { len = -ENOMEM; goto error_alloc; } len = ustcomm_recv_unix_sock(sock, chan_data, var_len); if (len != var_len) { goto error_recv; } /* recv wakeup fd */ nr_fd = ustcomm_recv_fds_unix_sock(sock, &wakeup_fd, 1); if (nr_fd <= 0) { if (nr_fd < 0) { len = nr_fd; goto error_recv; } else { len = -EIO; goto error_recv; } } *_wakeup_fd = wakeup_fd; *_chan_data = chan_data; return len; error_recv: free(chan_data); error_alloc: error_check: return len; } int ustcomm_recv_stream_from_sessiond(int sock, uint64_t *memory_map_size, int *shm_fd, int *wakeup_fd) { ssize_t len; int ret; int fds[2]; /* recv shm fd and wakeup fd */ len = ustcomm_recv_fds_unix_sock(sock, fds, 2); if (len <= 0) { if (len < 0) { ret = len; goto error; } else { ret = -EIO; goto error; } } *shm_fd = fds[0]; *wakeup_fd = fds[1]; return 0; error: return ret; } /* * Returns 0 on success, negative error value on error. */ int ustcomm_send_reg_msg(int sock, enum ustctl_socket_type type, uint32_t bits_per_long, uint32_t uint8_t_alignment, uint32_t uint16_t_alignment, uint32_t uint32_t_alignment, uint32_t uint64_t_alignment, uint32_t long_alignment) { ssize_t len; struct ustctl_reg_msg reg_msg; reg_msg.magic = LTTNG_UST_COMM_MAGIC; reg_msg.major = LTTNG_UST_ABI_MAJOR_VERSION; reg_msg.minor = LTTNG_UST_ABI_MINOR_VERSION; reg_msg.pid = getpid(); reg_msg.ppid = getppid(); reg_msg.uid = getuid(); reg_msg.gid = getgid(); reg_msg.bits_per_long = bits_per_long; reg_msg.uint8_t_alignment = uint8_t_alignment; reg_msg.uint16_t_alignment = uint16_t_alignment; reg_msg.uint32_t_alignment = uint32_t_alignment; reg_msg.uint64_t_alignment = uint64_t_alignment; reg_msg.long_alignment = long_alignment; reg_msg.socket_type = type; lttng_ust_getprocname(reg_msg.name); memset(reg_msg.padding, 0, sizeof(reg_msg.padding)); len = ustcomm_send_unix_sock(sock, ®_msg, sizeof(reg_msg)); if (len > 0 && len != sizeof(reg_msg)) return -EIO; if (len < 0) return len; return 0; } static int serialize_string_encoding(enum ustctl_string_encodings *ue, enum lttng_string_encodings le) { switch (le) { case lttng_encode_none: *ue = ustctl_encode_none; break; case lttng_encode_UTF8: *ue = ustctl_encode_UTF8; break; case lttng_encode_ASCII: *ue = ustctl_encode_ASCII; break; default: return -EINVAL; } return 0; } static int serialize_basic_type(enum ustctl_abstract_types *uatype, enum lttng_abstract_types atype, union _ustctl_basic_type *ubt, const union _lttng_basic_type *lbt) { switch (atype) { case atype_integer: { struct ustctl_integer_type *uit; const struct lttng_integer_type *lit; uit = &ubt->integer; lit = &lbt->integer; uit->size = lit->size; uit->signedness = lit->signedness; uit->reverse_byte_order = lit->reverse_byte_order; uit->base = lit->base; if (serialize_string_encoding(&uit->encoding, lit->encoding)) return -EINVAL; uit->alignment = lit->alignment; *uatype = ustctl_atype_integer; break; } case atype_string: { if (serialize_string_encoding(&ubt->string.encoding, lbt->string.encoding)) return -EINVAL; *uatype = ustctl_atype_string; break; } case atype_float: { struct ustctl_float_type *uft; const struct lttng_float_type *lft; uft = &ubt->_float; lft = &lbt->_float; uft->exp_dig = lft->exp_dig; uft->mant_dig = lft->mant_dig; uft->alignment = lft->alignment; uft->reverse_byte_order = lft->reverse_byte_order; *uatype = ustctl_atype_float; break; } case atype_enum: case atype_array: case atype_sequence: default: return -EINVAL; } return 0; } static int serialize_one_type(struct ustctl_type *ut, const struct lttng_type *lt) { int ret; switch (lt->atype) { case atype_integer: case atype_float: case atype_string: ret = serialize_basic_type(&ut->atype, lt->atype, &ut->u.basic, <->u.basic); if (ret) return ret; break; case atype_array: { struct ustctl_basic_type *ubt; const struct lttng_basic_type *lbt; int ret; ubt = &ut->u.array.elem_type; lbt = <->u.array.elem_type; ut->u.array.length = lt->u.array.length; ret = serialize_basic_type(&ubt->atype, lbt->atype, &ubt->u.basic, &lbt->u.basic); if (ret) return -EINVAL; ut->atype = ustctl_atype_array; break; } case atype_sequence: { struct ustctl_basic_type *ubt; const struct lttng_basic_type *lbt; int ret; ubt = &ut->u.sequence.length_type; lbt = <->u.sequence.length_type; ret = serialize_basic_type(&ubt->atype, lbt->atype, &ubt->u.basic, &lbt->u.basic); if (ret) return -EINVAL; ubt = &ut->u.sequence.elem_type; lbt = <->u.sequence.elem_type; ret = serialize_basic_type(&ubt->atype, lbt->atype, &ubt->u.basic, &lbt->u.basic); if (ret) return -EINVAL; ut->atype = ustctl_atype_sequence; break; } case atype_enum: default: return -EINVAL; } return 0; } static int serialize_fields(size_t *_nr_write_fields, struct ustctl_field **ustctl_fields, size_t nr_fields, const struct lttng_event_field *lttng_fields) { struct ustctl_field *fields; int i, ret; size_t nr_write_fields = 0; fields = zmalloc(nr_fields * sizeof(*fields)); if (!fields) return -ENOMEM; for (i = 0; i < nr_fields; i++) { struct ustctl_field *f; const struct lttng_event_field *lf; f = &fields[nr_write_fields]; lf = <tng_fields[i]; /* skip 'nowrite' fields */ if (lf->nowrite) continue; strncpy(f->name, lf->name, LTTNG_UST_SYM_NAME_LEN); f->name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; ret = serialize_one_type(&f->type, &lf->type); if (ret) goto error_type; nr_write_fields++; } *_nr_write_fields = nr_write_fields; *ustctl_fields = fields; return 0; error_type: free(fields); return ret; } static int serialize_ctx_fields(size_t *_nr_write_fields, struct ustctl_field **ustctl_fields, size_t nr_fields, const struct lttng_ctx_field *lttng_fields) { struct ustctl_field *fields; int i, ret; size_t nr_write_fields = 0; fields = zmalloc(nr_fields * sizeof(*fields)); if (!fields) return -ENOMEM; for (i = 0; i < nr_fields; i++) { struct ustctl_field *f; const struct lttng_event_field *lf; f = &fields[nr_write_fields]; lf = <tng_fields[i].event_field; /* skip 'nowrite' fields */ if (lf->nowrite) continue; strncpy(f->name, lf->name, LTTNG_UST_SYM_NAME_LEN); f->name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; ret = serialize_one_type(&f->type, &lf->type); if (ret) goto error_type; nr_write_fields++; } *_nr_write_fields = nr_write_fields; *ustctl_fields = fields; return 0; error_type: free(fields); return ret; } /* * Returns 0 on success, negative error value on error. */ int ustcomm_register_event(int sock, int session_objd, /* session descriptor */ int channel_objd, /* channel descriptor */ const char *event_name, /* event name (input) */ int loglevel, const char *signature, /* event signature (input) */ size_t nr_fields, /* fields */ const struct lttng_event_field *lttng_fields, const char *model_emf_uri, uint32_t *id) /* event id (output) */ { ssize_t len; struct { struct ustcomm_notify_hdr header; struct ustcomm_notify_event_msg m; } msg; struct { struct ustcomm_notify_hdr header; struct ustcomm_notify_event_reply r; } reply; size_t signature_len, fields_len, model_emf_uri_len; struct ustctl_field *fields = NULL; size_t nr_write_fields = 0; int ret; memset(&msg, 0, sizeof(msg)); msg.header.notify_cmd = USTCTL_NOTIFY_CMD_EVENT; msg.m.session_objd = session_objd; msg.m.channel_objd = channel_objd; strncpy(msg.m.event_name, event_name, LTTNG_UST_SYM_NAME_LEN); msg.m.event_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0'; msg.m.loglevel = loglevel; signature_len = strlen(signature) + 1; msg.m.signature_len = signature_len; /* Calculate fields len, serialize fields. */ if (nr_fields > 0) { ret = serialize_fields(&nr_write_fields, &fields, nr_fields, lttng_fields); if (ret) return ret; } fields_len = sizeof(*fields) * nr_write_fields; msg.m.fields_len = fields_len; if (model_emf_uri) { model_emf_uri_len = strlen(model_emf_uri) + 1; } else { model_emf_uri_len = 0; } msg.m.model_emf_uri_len = model_emf_uri_len; len = ustcomm_send_unix_sock(sock, &msg, sizeof(msg)); if (len > 0 && len != sizeof(msg)) { free(fields); return -EIO; } if (len < 0) { free(fields); return len; } /* send signature */ len = ustcomm_send_unix_sock(sock, signature, signature_len); if (len > 0 && len != signature_len) { free(fields); return -EIO; } if (len < 0) { free(fields); return len; } /* send fields */ if (fields_len > 0) { len = ustcomm_send_unix_sock(sock, fields, fields_len); free(fields); if (len > 0 && len != fields_len) { return -EIO; } if (len < 0) { return len; } } else { free(fields); } if (model_emf_uri_len) { /* send model_emf_uri */ len = ustcomm_send_unix_sock(sock, model_emf_uri, model_emf_uri_len); if (len > 0 && len != model_emf_uri_len) return -EIO; if (len < 0) return len; } /* receive reply */ len = ustcomm_recv_unix_sock(sock, &reply, sizeof(reply)); switch (len) { case 0: /* orderly shutdown */ return -EPIPE; case sizeof(reply): if (reply.header.notify_cmd != msg.header.notify_cmd) { ERR("Unexpected result message command " "expected: %u vs received: %u\n", msg.header.notify_cmd, reply.header.notify_cmd); return -EINVAL; } if (reply.r.ret_code > 0) return -EINVAL; if (reply.r.ret_code < 0) return reply.r.ret_code; *id = reply.r.event_id; DBG("Sent register event notification for name \"%s\": ret_code %d, event_id %u\n", event_name, reply.r.ret_code, reply.r.event_id); return 0; default: if (len < 0) { /* Transport level error */ if (errno == EPIPE || errno == ECONNRESET) len = -errno; return len; } else { ERR("incorrect message size: %zd\n", len); return len; } } } /* * Returns 0 on success, negative error value on error. * Returns -EPIPE or -ECONNRESET if other end has hung up. */ int ustcomm_register_channel(int sock, int session_objd, /* session descriptor */ int channel_objd, /* channel descriptor */ size_t nr_ctx_fields, const struct lttng_ctx_field *ctx_fields, uint32_t *chan_id, /* channel id (output) */ int *header_type) /* header type (output) */ { ssize_t len; struct { struct ustcomm_notify_hdr header; struct ustcomm_notify_channel_msg m; } msg; struct { struct ustcomm_notify_hdr header; struct ustcomm_notify_channel_reply r; } reply; size_t fields_len; struct ustctl_field *fields = NULL; int ret; size_t nr_write_fields = 0; memset(&msg, 0, sizeof(msg)); msg.header.notify_cmd = USTCTL_NOTIFY_CMD_CHANNEL; msg.m.session_objd = session_objd; msg.m.channel_objd = channel_objd; /* Calculate fields len, serialize fields. */ if (nr_ctx_fields > 0) { ret = serialize_ctx_fields(&nr_write_fields, &fields, nr_ctx_fields, ctx_fields); if (ret) return ret; } fields_len = sizeof(*fields) * nr_write_fields; msg.m.ctx_fields_len = fields_len; len = ustcomm_send_unix_sock(sock, &msg, sizeof(msg)); if (len > 0 && len != sizeof(msg)) { free(fields); return -EIO; } if (len < 0) { free(fields); return len; } /* send fields */ if (fields_len > 0) { len = ustcomm_send_unix_sock(sock, fields, fields_len); free(fields); if (len > 0 && len != fields_len) { return -EIO; } if (len < 0) { return len; } } else { free(fields); } len = ustcomm_recv_unix_sock(sock, &reply, sizeof(reply)); switch (len) { case 0: /* orderly shutdown */ return -EPIPE; case sizeof(reply): if (reply.header.notify_cmd != msg.header.notify_cmd) { ERR("Unexpected result message command " "expected: %u vs received: %u\n", msg.header.notify_cmd, reply.header.notify_cmd); return -EINVAL; } if (reply.r.ret_code > 0) return -EINVAL; if (reply.r.ret_code < 0) return reply.r.ret_code; *chan_id = reply.r.chan_id; switch (reply.r.header_type) { case 1: case 2: *header_type = reply.r.header_type; break; default: ERR("Unexpected channel header type %u\n", reply.r.header_type); return -EINVAL; } DBG("Sent register channel notification: chan_id %d, header_type %d\n", reply.r.chan_id, reply.r.header_type); return 0; default: if (len < 0) { /* Transport level error */ if (errno == EPIPE || errno == ECONNRESET) len = -errno; return len; } else { ERR("incorrect message size: %zd\n", len); return len; } } } /* * Set socket reciving timeout. */ int ustcomm_setsockopt_rcv_timeout(int sock, unsigned int msec) { int ret; struct timeval tv; tv.tv_sec = msec / 1000; tv.tv_usec = (msec * 1000 % 1000000); ret = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); if (ret < 0) { PERROR("setsockopt SO_RCVTIMEO"); ret = -errno; } return ret; } /* * Set socket sending timeout. */ int ustcomm_setsockopt_snd_timeout(int sock, unsigned int msec) { int ret; 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