-/*
- * Babeltrace - Debug Information State Tracker
- *
- * Copyright (c) 2015 EfficiOS Inc. and Linux Foundation
- * Copyright (c) 2015 Philippe Proulx <pproulx@efficios.com>
- * Copyright (c) 2015 Antoine Busque <abusque@efficios.com>
- * Copyright (c) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * 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 <assert.h>
-#include <glib.h>
-#include <babeltrace/types.h>
-#include <babeltrace/ctf-ir/metadata.h>
-#include <babeltrace/debug-info.h>
-#include <babeltrace/bin-info.h>
-#include <babeltrace/babeltrace-internal.h>
-#include <babeltrace/utils.h>
-
-struct proc_debug_info_sources {
- /*
- * Hash table: base address (pointer to uint64_t) to bin info; owned by
- * proc_debug_info_sources.
- */
- GHashTable *baddr_to_bin_info;
-
- /*
- * Hash table: IP (pointer to uint64_t) to (struct debug_info_source *);
- * owned by proc_debug_info_sources.
- */
- GHashTable *ip_to_debug_info_src;
-};
-
-struct debug_info {
- /*
- * Hash table of VPIDs (pointer to int64_t) to
- * (struct ctf_proc_debug_infos*); owned by debug_info.
- */
- GHashTable *vpid_to_proc_dbg_info_src;
- GQuark q_statedump_bin_info;
- GQuark q_statedump_debug_link;
- GQuark q_statedump_build_id;
- GQuark q_statedump_start;
- GQuark q_dl_open;
- GQuark q_lib_load;
- GQuark q_lib_unload;
-};
-
-static
-int debug_info_init(struct debug_info *info)
-{
- info->q_statedump_bin_info = g_quark_from_string(
- "lttng_ust_statedump:bin_info");
- info->q_statedump_debug_link = g_quark_from_string(
- "lttng_ust_statedump:debug_link)");
- info->q_statedump_build_id = g_quark_from_string(
- "lttng_ust_statedump:build_id");
- info->q_statedump_start = g_quark_from_string(
- "lttng_ust_statedump:start");
- info->q_dl_open = g_quark_from_string("lttng_ust_dl:dlopen");
- info->q_lib_load = g_quark_from_string("lttng_ust_lib:load");
- info->q_lib_unload = g_quark_from_string("lttng_ust_lib:unload");
-
- return bin_info_init();
-}
-
-static
-void debug_info_source_destroy(struct debug_info_source *debug_info_src)
-{
- if (!debug_info_src) {
- return;
- }
-
- free(debug_info_src->func);
- free(debug_info_src->src_path);
- free(debug_info_src->bin_path);
- free(debug_info_src->bin_loc);
- g_free(debug_info_src);
-}
-
-static
-struct debug_info_source *debug_info_source_create_from_bin(struct bin_info *bin,
- uint64_t ip)
-{
- int ret;
- struct debug_info_source *debug_info_src = NULL;
- struct source_location *src_loc = NULL;
-
- debug_info_src = g_new0(struct debug_info_source, 1);
-
- if (!debug_info_src) {
- goto end;
- }
-
- /* Lookup function name */
- ret = bin_info_lookup_function_name(bin, ip, &debug_info_src->func);
- if (ret) {
- goto error;
- }
-
- /* Can't retrieve src_loc from ELF, or could not find binary, skip. */
- if (!bin->is_elf_only || !debug_info_src->func) {
- /* Lookup source location */
- ret = bin_info_lookup_source_location(bin, ip, &src_loc);
- printf_verbose("Failed to lookup source location (err: %i)\n", ret);
- }
-
- if (src_loc) {
- debug_info_src->line_no = src_loc->line_no;
-
- if (src_loc->filename) {
- debug_info_src->src_path = strdup(src_loc->filename);
- if (!debug_info_src->src_path) {
- goto error;
- }
-
- debug_info_src->short_src_path = get_filename_from_path(
- debug_info_src->src_path);
- }
-
- source_location_destroy(src_loc);
- }
-
- if (bin->elf_path) {
- debug_info_src->bin_path = strdup(bin->elf_path);
- if (!debug_info_src->bin_path) {
- goto error;
- }
-
- debug_info_src->short_bin_path = get_filename_from_path(
- debug_info_src->bin_path);
-
- ret = bin_info_get_bin_loc(bin, ip, &(debug_info_src->bin_loc));
- if (ret) {
- goto error;
- }
- }
-
-end:
- return debug_info_src;
-
-error:
- debug_info_source_destroy(debug_info_src);
- return NULL;
-}
-
-static
-void proc_debug_info_sources_destroy(
- struct proc_debug_info_sources *proc_dbg_info_src)
-{
- if (!proc_dbg_info_src) {
- return;
- }
-
- if (proc_dbg_info_src->baddr_to_bin_info) {
- g_hash_table_destroy(proc_dbg_info_src->baddr_to_bin_info);
- }
-
- if (proc_dbg_info_src->ip_to_debug_info_src) {
- g_hash_table_destroy(proc_dbg_info_src->ip_to_debug_info_src);
- }
-
- g_free(proc_dbg_info_src);
-}
-
-static
-struct proc_debug_info_sources *proc_debug_info_sources_create(void)
-{
- struct proc_debug_info_sources *proc_dbg_info_src = NULL;
-
- proc_dbg_info_src = g_new0(struct proc_debug_info_sources, 1);
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- proc_dbg_info_src->baddr_to_bin_info = g_hash_table_new_full(
- g_int64_hash, g_int64_equal, (GDestroyNotify) g_free,
- (GDestroyNotify) bin_info_destroy);
- if (!proc_dbg_info_src->baddr_to_bin_info) {
- goto error;
- }
-
- proc_dbg_info_src->ip_to_debug_info_src = g_hash_table_new_full(
- g_int64_hash, g_int64_equal, (GDestroyNotify) g_free,
- (GDestroyNotify) debug_info_source_destroy);
- if (!proc_dbg_info_src->ip_to_debug_info_src) {
- goto error;
- }
-
-end:
- return proc_dbg_info_src;
-
-error:
- proc_debug_info_sources_destroy(proc_dbg_info_src);
- return NULL;
-}
-
-static
-struct proc_debug_info_sources *proc_debug_info_sources_ht_get_entry(
- GHashTable *ht, int64_t vpid)
-{
- gpointer key = g_new0(int64_t, 1);
- struct proc_debug_info_sources *proc_dbg_info_src = NULL;
-
- if (!key) {
- goto end;
- }
-
- *((int64_t *) key) = vpid;
-
- /* Exists? Return it */
- proc_dbg_info_src = g_hash_table_lookup(ht, key);
- if (proc_dbg_info_src) {
- goto end;
- }
-
- /* Otherwise, create and return it */
- proc_dbg_info_src = proc_debug_info_sources_create();
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- g_hash_table_insert(ht, key, proc_dbg_info_src);
- /* Ownership passed to ht */
- key = NULL;
-end:
- g_free(key);
- return proc_dbg_info_src;
-}
-
-static
-struct debug_info_source *proc_debug_info_sources_get_entry(
- struct proc_debug_info_sources *proc_dbg_info_src, uint64_t ip)
-{
- struct debug_info_source *debug_info_src = NULL;
- gpointer key = g_new0(uint64_t, 1);
- GHashTableIter iter;
- gpointer baddr, value;
-
- if (!key) {
- goto end;
- }
-
- *((uint64_t *) key) = ip;
-
- /* Look in IP to debug infos hash table first. */
- debug_info_src = g_hash_table_lookup(
- proc_dbg_info_src->ip_to_debug_info_src,
- key);
- if (debug_info_src) {
- goto end;
- }
-
- /* Check in all bin_infos. */
- g_hash_table_iter_init(&iter, proc_dbg_info_src->baddr_to_bin_info);
-
- while (g_hash_table_iter_next(&iter, &baddr, &value))
- {
- struct bin_info *bin = value;
-
- if (!bin_info_has_address(value, ip)) {
- continue;
- }
-
- /*
- * Found; add it to cache.
- *
- * FIXME: this should be bounded in size (and implement
- * a caching policy), and entries should be prunned when
- * libraries are unmapped.
- */
- debug_info_src = debug_info_source_create_from_bin(bin, ip);
- if (debug_info_src) {
- g_hash_table_insert(
- proc_dbg_info_src->ip_to_debug_info_src,
- key, debug_info_src);
- /* Ownership passed to ht. */
- key = NULL;
- }
- break;
- }
-
-end:
- free(key);
- return debug_info_src;
-}
-
-BT_HIDDEN
-struct debug_info_source *debug_info_query(struct debug_info *debug_info,
- int64_t vpid, uint64_t ip)
-{
- struct debug_info_source *dbg_info_src = NULL;
- struct proc_debug_info_sources *proc_dbg_info_src;
-
- proc_dbg_info_src = proc_debug_info_sources_ht_get_entry(
- debug_info->vpid_to_proc_dbg_info_src, vpid);
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- dbg_info_src = proc_debug_info_sources_get_entry(
- proc_dbg_info_src, ip);
- if (!dbg_info_src) {
- goto end;
- }
-
-end:
- return dbg_info_src;
-}
-
-BT_HIDDEN
-struct debug_info *debug_info_create(void)
-{
- int ret;
- struct debug_info *debug_info;
-
- debug_info = g_new0(struct debug_info, 1);
- if (!debug_info) {
- goto end;
- }
-
- debug_info->vpid_to_proc_dbg_info_src = g_hash_table_new_full(
- g_int64_hash, g_int64_equal, (GDestroyNotify) g_free,
- (GDestroyNotify) proc_debug_info_sources_destroy);
- if (!debug_info->vpid_to_proc_dbg_info_src) {
- goto error;
- }
-
- ret = debug_info_init(debug_info);
- if (ret) {
- goto error;
- }
-
-end:
- return debug_info;
-error:
- g_free(debug_info);
- return NULL;
-}
-
-BT_HIDDEN
-void debug_info_destroy(struct debug_info *debug_info)
-{
- if (!debug_info) {
- goto end;
- }
-
- if (debug_info->vpid_to_proc_dbg_info_src) {
- g_hash_table_destroy(debug_info->vpid_to_proc_dbg_info_src);
- }
-
- g_free(debug_info);
-end:
- return;
-}
-
-static
-void handle_statedump_build_id_event(struct debug_info *debug_info,
- struct ctf_event_definition *event_def)
-{
- struct proc_debug_info_sources *proc_dbg_info_src;
- struct bt_definition *event_fields_def = NULL;
- struct bt_definition *sec_def = NULL;
- struct bt_definition *baddr_def = NULL;
- struct bt_definition *vpid_def = NULL;
- struct bt_definition *build_id_def = NULL;
- struct definition_sequence *build_id_seq;
- struct bin_info *bin = NULL;
- int i;
- int64_t vpid;
- uint64_t baddr;
- uint8_t *build_id = NULL;
- uint64_t build_id_len;
-
- event_fields_def = (struct bt_definition *) event_def->event_fields;
- sec_def = (struct bt_definition *)
- event_def->stream->stream_event_context;
-
- if (!event_fields_def || !sec_def) {
- goto end;
- }
-
- baddr_def = bt_lookup_definition(event_fields_def, "_baddr");
- if (!baddr_def) {
- goto end;
- }
-
- vpid_def = bt_lookup_definition(sec_def, "_vpid");
- if (!vpid_def) {
- goto end;
- }
-
- build_id_def = bt_lookup_definition(event_fields_def, "_build_id");
- if (!build_id_def) {
- goto end;
- }
-
- if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- if (build_id_def->declaration->id != BT_CTF_TYPE_ID_SEQUENCE) {
- goto end;
- }
-
- baddr = bt_get_unsigned_int(baddr_def);
- vpid = bt_get_signed_int(vpid_def);
- build_id_seq = container_of(build_id_def,
- struct definition_sequence, p);
- build_id_len = build_id_seq->length->value._unsigned;
-
- build_id = g_malloc(build_id_len);
- if (!build_id) {
- goto end;
- }
-
- for (i = 0; i < build_id_len; ++i) {
- struct bt_definition **field;
-
- field = (struct bt_definition **) &g_ptr_array_index(
- build_id_seq->elems, i);
- build_id[i] = bt_get_unsigned_int(*field);
- }
-
- proc_dbg_info_src = proc_debug_info_sources_ht_get_entry(
- debug_info->vpid_to_proc_dbg_info_src, vpid);
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- bin = g_hash_table_lookup(proc_dbg_info_src->baddr_to_bin_info,
- (gpointer) &baddr);
- if (!bin) {
- /*
- * The build_id event comes after the bin has been
- * created. If it isn't found, just ignore this event.
- */
- goto end;
- }
-
- bin_info_set_build_id(bin, build_id, build_id_len);
-
-end:
- free(build_id);
- return;
-}
-
-static
-void handle_statedump_debug_link_event(struct debug_info *debug_info,
- struct ctf_event_definition *event_def)
-{
- struct proc_debug_info_sources *proc_dbg_info_src;
- struct bt_definition *event_fields_def = NULL;
- struct bt_definition *sec_def = NULL;
- struct bt_definition *baddr_def = NULL;
- struct bt_definition *vpid_def = NULL;
- struct bt_definition *filename_def = NULL;
- struct bt_definition *crc32_def = NULL;
- struct bin_info *bin = NULL;
- int64_t vpid;
- uint64_t baddr;
- char *filename = NULL;
- uint32_t crc32;
-
- event_fields_def = (struct bt_definition *) event_def->event_fields;
- sec_def = (struct bt_definition *)
- event_def->stream->stream_event_context;
-
- if (!event_fields_def || !sec_def) {
- goto end;
- }
-
- baddr_def = bt_lookup_definition(event_fields_def, "_baddr");
- if (!baddr_def) {
- goto end;
- }
-
- vpid_def = bt_lookup_definition(sec_def, "_vpid");
- if (!vpid_def) {
- goto end;
- }
-
- filename_def = bt_lookup_definition(event_fields_def, "_filename");
- if (!filename_def) {
- goto end;
- }
-
- crc32_def = bt_lookup_definition(event_fields_def, "_crc32");
- if (!crc32_def) {
- goto end;
- }
-
- if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- if (filename_def->declaration->id != BT_CTF_TYPE_ID_STRING) {
- goto end;
- }
-
- if (crc32_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- baddr = bt_get_unsigned_int(baddr_def);
- vpid = bt_get_signed_int(vpid_def);
-
- proc_dbg_info_src = proc_debug_info_sources_ht_get_entry(
- debug_info->vpid_to_proc_dbg_info_src, vpid);
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- bin = g_hash_table_lookup(proc_dbg_info_src->baddr_to_bin_info,
- (gpointer) &baddr);
- if (!bin) {
- /*
- * The debug_link event comes after the bin has been
- * created. If it isn't found, just ignore this event.
- */
- goto end;
- }
-
- filename = bt_get_string(filename_def);
- crc32 = bt_get_unsigned_int(crc32_def);
-
- bin_info_set_debug_link(bin, filename, crc32);
-
-end:
- return;
-}
-
-static
-void handle_bin_info_event(struct debug_info *debug_info,
- struct ctf_event_definition *event_def, bool has_pic_field)
-{
- struct bt_definition *baddr_def = NULL;
- struct bt_definition *memsz_def = NULL;
- struct bt_definition *path_def = NULL;
- struct bt_definition *is_pic_def = NULL;
- struct bt_definition *vpid_def = NULL;
- struct bt_definition *event_fields_def = NULL;
- struct bt_definition *sec_def = NULL;
- struct proc_debug_info_sources *proc_dbg_info_src;
- struct bin_info *bin;
- uint64_t baddr, memsz;
- int64_t vpid;
- const char *path;
- gpointer key = NULL;
- bool is_pic;
-
- event_fields_def = (struct bt_definition *) event_def->event_fields;
- sec_def = (struct bt_definition *)
- event_def->stream->stream_event_context;
-
- if (!event_fields_def || !sec_def) {
- goto end;
- }
-
- baddr_def = bt_lookup_definition(event_fields_def, "_baddr");
- if (!baddr_def) {
- goto end;
- }
-
- memsz_def = bt_lookup_definition(event_fields_def, "_memsz");
- if (!memsz_def) {
- goto end;
- }
-
- path_def = bt_lookup_definition(event_fields_def, "_path");
- if (!path_def) {
- goto end;
- }
-
- if (has_pic_field) {
- is_pic_def = bt_lookup_definition(event_fields_def, "_is_pic");
- if (!is_pic_def) {
- goto end;
- }
-
- if (is_pic_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- is_pic = (bt_get_unsigned_int(is_pic_def) == 1);
- } else {
- /*
- * dlopen has no is_pic field, because the shared
- * object is always PIC.
- */
- is_pic = true;
- }
-
- vpid_def = bt_lookup_definition(sec_def, "_vpid");
- if (!vpid_def) {
- goto end;
- }
-
- if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- if (memsz_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- if (path_def->declaration->id != BT_CTF_TYPE_ID_STRING) {
- goto end;
- }
-
- if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- baddr = bt_get_unsigned_int(baddr_def);
- memsz = bt_get_unsigned_int(memsz_def);
- path = bt_get_string(path_def);
- vpid = bt_get_signed_int(vpid_def);
-
- if (!path) {
- goto end;
- }
-
- if (memsz == 0) {
- /* Ignore VDSO. */
- goto end;
- }
-
- proc_dbg_info_src = proc_debug_info_sources_ht_get_entry(
- debug_info->vpid_to_proc_dbg_info_src, vpid);
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- key = g_new0(uint64_t, 1);
- if (!key) {
- goto end;
- }
-
- *((uint64_t *) key) = baddr;
-
- bin = g_hash_table_lookup(proc_dbg_info_src->baddr_to_bin_info,
- key);
- if (bin) {
- goto end;
- }
-
- bin = bin_info_create(path, baddr, memsz, is_pic);
- if (!bin) {
- goto end;
- }
-
- g_hash_table_insert(proc_dbg_info_src->baddr_to_bin_info,
- key, bin);
- /* Ownership passed to ht. */
- key = NULL;
-
-end:
- g_free(key);
- return;
-}
-
-static inline
-void handle_statedump_bin_info_event(struct debug_info *debug_info,
- struct ctf_event_definition *event_def)
-{
- handle_bin_info_event(debug_info, event_def, true);
-}
-
-static inline
-void handle_lib_load_event(struct debug_info *debug_info,
- struct ctf_event_definition *event_def)
-{
- handle_bin_info_event(debug_info, event_def, false);
-}
-
-static inline
-void handle_lib_unload_event(struct debug_info *debug_info,
- struct ctf_event_definition *event_def)
-{
- struct bt_definition *baddr_def = NULL;
- struct bt_definition *event_fields_def = NULL;
- struct bt_definition *sec_def = NULL;
- struct bt_definition *vpid_def = NULL;
- struct proc_debug_info_sources *proc_dbg_info_src;
- uint64_t baddr;
- int64_t vpid;
- gpointer key_ptr = NULL;
-
- event_fields_def = (struct bt_definition *) event_def->event_fields;
- sec_def = (struct bt_definition *)
- event_def->stream->stream_event_context;
- if (!event_fields_def || !sec_def) {
- goto end;
- }
-
- baddr_def = bt_lookup_definition(event_fields_def, "_baddr");
- if (!baddr_def) {
- goto end;
- }
-
- vpid_def = bt_lookup_definition(sec_def, "_vpid");
- if (!vpid_def) {
- goto end;
- }
-
- if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
- if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) {
- goto end;
- }
-
- baddr = bt_get_unsigned_int(baddr_def);
- vpid = bt_get_signed_int(vpid_def);
-
- proc_dbg_info_src = proc_debug_info_sources_ht_get_entry(
- debug_info->vpid_to_proc_dbg_info_src, vpid);
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- key_ptr = (gpointer) &baddr;
- (void) g_hash_table_remove(proc_dbg_info_src->baddr_to_bin_info,
- key_ptr);
-end:
- return;
-}
-
-static
-void handle_statedump_start(struct debug_info *debug_info,
- struct ctf_event_definition *event_def)
-{
- struct bt_definition *vpid_def = NULL;
- struct bt_definition *sec_def = NULL;
- struct proc_debug_info_sources *proc_dbg_info_src;
- int64_t vpid;
-
- sec_def = (struct bt_definition *)
- event_def->stream->stream_event_context;
- if (!sec_def) {
- goto end;
- }
-
- vpid_def = bt_lookup_definition(sec_def, "_vpid");
- if (!vpid_def) {
- goto end;
- }
-
- vpid = bt_get_signed_int(vpid_def);
-
- proc_dbg_info_src = proc_debug_info_sources_ht_get_entry(
- debug_info->vpid_to_proc_dbg_info_src, vpid);
- if (!proc_dbg_info_src) {
- goto end;
- }
-
- g_hash_table_remove_all(proc_dbg_info_src->baddr_to_bin_info);
- g_hash_table_remove_all(proc_dbg_info_src->ip_to_debug_info_src);
-
-end:
- return;
-}
-
-static
-void register_event_debug_infos(struct debug_info *debug_info,
- struct ctf_event_definition *event)
-{
- struct bt_definition *ip_def, *vpid_def;
- int64_t vpid;
- uint64_t ip;
- struct bt_definition *sec_def;
-
- /* Get stream event context definition. */
- sec_def = (struct bt_definition *) event->stream->stream_event_context;
- if (!sec_def) {
- goto end;
- }
-
- /* Get "ip" and "vpid" definitions. */
- vpid_def = bt_lookup_definition((struct bt_definition *) sec_def,
- "_vpid");
- ip_def = bt_lookup_definition((struct bt_definition *) sec_def, "_ip");
-
- if (!vpid_def || !ip_def) {
- goto end;
- }
-
- vpid = bt_get_signed_int(vpid_def);
- ip = bt_get_unsigned_int(ip_def);
-
- /* Get debug info for this context. */
- ((struct definition_integer *) ip_def)->debug_info_src =
- debug_info_query(debug_info, vpid, ip);
-
-end:
- return;
-}
-
-BT_HIDDEN
-void debug_info_handle_event(struct debug_info *debug_info,
- struct ctf_event_definition *event)
-{
- struct ctf_event_declaration *event_class;
- struct ctf_stream_declaration *stream_class;
-
- if (!debug_info || !event) {
- goto end;
- }
-
- stream_class = event->stream->stream_class;
- event_class = g_ptr_array_index(stream_class->events_by_id,
- event->stream->event_id);
-
- if (event_class->name == debug_info->q_statedump_bin_info) {
- /* State dump */
- handle_statedump_bin_info_event(debug_info, event);
- } else if (event_class->name == debug_info->q_dl_open ||
- event_class->name == debug_info->q_lib_load) {
- /*
- * dl_open and lib_load events are both checked for since
- * only dl_open was produced as of lttng-ust 2.8.
- *
- * lib_load, which is produced from lttng-ust 2.9+, is a lot
- * more reliable since it will be emitted when other functions
- * of the dlopen family are called (e.g. dlmopen) and when
- * library are transitively loaded.
- */
- handle_lib_load_event(debug_info, event);
- } else if (event_class->name == debug_info->q_statedump_start) {
- /* Start state dump */
- handle_statedump_start(debug_info, event);
- } else if (event_class->name == debug_info->q_statedump_debug_link) {
- /* Debug link info */
- handle_statedump_debug_link_event(debug_info, event);
- } else if (event_class->name == debug_info->q_statedump_build_id) {
- /* Build ID info */
- handle_statedump_build_id_event(debug_info, event);
- } else if (event_class->name == debug_info-> q_lib_unload) {
- handle_lib_unload_event(debug_info, event);
- }
-
- /* All events: register debug infos */
- register_event_debug_infos(debug_info, event);
-
-end:
- return;
-}
projects / babeltrace.git / blobdiff