Commit | Line | Data |
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c40a57e5 AB |
1 | /* |
2 | * Babeltrace - Debug Information State Tracker | |
3 | * | |
4 | * Copyright (c) 2015 EfficiOS Inc. and Linux Foundation | |
5 | * Copyright (c) 2015 Philippe Proulx <pproulx@efficios.com> | |
6 | * Copyright (c) 2015 Antoine Busque <abusque@efficios.com> | |
ff9ce920 | 7 | * Copyright (c) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
c40a57e5 AB |
8 | * |
9 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
10 | * of this software and associated documentation files (the "Software"), to deal | |
11 | * in the Software without restriction, including without limitation the rights | |
12 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
13 | * copies of the Software, and to permit persons to whom the Software is | |
14 | * furnished to do so, subject to the following conditions: | |
15 | * | |
16 | * The above copyright notice and this permission notice shall be included in | |
17 | * all copies or substantial portions of the Software. | |
18 | * | |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
22 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
23 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
24 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
25 | * SOFTWARE. | |
26 | */ | |
27 | ||
28 | #include <assert.h> | |
29 | #include <glib.h> | |
30 | #include <babeltrace/types.h> | |
31 | #include <babeltrace/ctf-ir/metadata.h> | |
32 | #include <babeltrace/debuginfo.h> | |
33 | #include <babeltrace/so-info.h> | |
ff9ce920 | 34 | #include <babeltrace/babeltrace-internal.h> |
c40a57e5 AB |
35 | |
36 | struct proc_debug_info_sources { | |
37 | /* | |
47857613 | 38 | * Hash table: base address (pointer to uint64_t) to so info; owned by |
c40a57e5 AB |
39 | * proc_debug_info_sources. |
40 | */ | |
41 | GHashTable *baddr_to_so_info; | |
42 | ||
43 | /* | |
47857613 JG |
44 | * Hash table: IP (pointer to uint64_t) to (struct debug_info_source *); |
45 | * owned by proc_debug_info_sources. | |
c40a57e5 AB |
46 | */ |
47 | GHashTable *ip_to_debug_info_src; | |
48 | }; | |
49 | ||
50 | struct debug_info { | |
51 | /* | |
47857613 JG |
52 | * Hash table of VPIDs (pointer to int64_t) to |
53 | * (struct ctf_proc_debug_infos*); owned by debug_info. | |
c40a57e5 AB |
54 | */ |
55 | GHashTable *vpid_to_proc_dbg_info_src; | |
56 | GQuark q_statedump_soinfo; | |
57 | GQuark q_statedump_debug_link; | |
58 | GQuark q_statedump_build_id; | |
59 | GQuark q_statedump_start; | |
60 | GQuark q_dl_open; | |
61 | }; | |
62 | ||
63 | static | |
64 | int debug_info_init(struct debug_info *info) | |
65 | { | |
66 | info->q_statedump_soinfo = g_quark_from_string( | |
67 | "lttng_ust_statedump:soinfo"); | |
68 | info->q_statedump_debug_link = g_quark_from_string( | |
69 | "lttng_ust_statedump:debug_link)"); | |
70 | info->q_statedump_build_id = g_quark_from_string( | |
71 | "lttng_ust_statedump:build_id"); | |
72 | info->q_statedump_start = g_quark_from_string( | |
73 | "lttng_ust_statedump:start"); | |
74 | info->q_dl_open = g_quark_from_string("lttng_ust_dl:dlopen"); | |
75 | ||
76 | return so_info_init(); | |
77 | } | |
78 | ||
79 | static | |
80 | void debug_info_source_destroy(struct debug_info_source *debug_info_src) | |
81 | { | |
82 | if (!debug_info_src) { | |
83 | return; | |
84 | } | |
85 | ||
86 | free(debug_info_src->func); | |
87 | free(debug_info_src->filename); | |
88 | g_free(debug_info_src); | |
89 | } | |
90 | ||
ff9ce920 JG |
91 | /* |
92 | * Returns the location of a path's file (the last element of the path). | |
93 | * Returns the original path on error. | |
94 | */ | |
95 | static | |
96 | const char *get_filename_from_path(const char *path) | |
97 | { | |
98 | size_t i = strlen(path); | |
99 | ||
100 | if (i == 0) { | |
101 | goto end; | |
102 | } | |
103 | ||
104 | if (path[i - 1] == '/') { | |
105 | /* | |
106 | * Path ends with a trailing slash, no filename to return. | |
107 | * Return the original path. | |
108 | */ | |
109 | goto end; | |
110 | } | |
111 | ||
112 | while (i-- > 0) { | |
113 | if (path[i] == '/') { | |
114 | path = &path[i + 1]; | |
115 | goto end; | |
116 | } | |
117 | } | |
118 | end: | |
119 | return path; | |
120 | } | |
121 | ||
c40a57e5 AB |
122 | static |
123 | struct debug_info_source *debug_info_source_create_from_so(struct so_info *so, | |
124 | uint64_t ip) | |
125 | { | |
126 | int ret; | |
127 | struct debug_info_source *debug_info_src = NULL; | |
128 | struct source_location *src_loc = NULL; | |
129 | ||
130 | debug_info_src = g_new0(struct debug_info_source, 1); | |
131 | ||
132 | if (!debug_info_src) { | |
133 | goto end; | |
134 | } | |
135 | ||
136 | /* Lookup function name */ | |
137 | ret = so_info_lookup_function_name(so, ip, &debug_info_src->func); | |
138 | if (ret) { | |
139 | goto error; | |
140 | } | |
141 | ||
142 | /* Can't retrieve src_loc from ELF only, skip it */ | |
143 | if (so->is_elf_only) { | |
144 | goto end; | |
145 | } | |
146 | ||
147 | /* Lookup source location */ | |
148 | ret = so_info_lookup_source_location(so, ip, &src_loc); | |
149 | if (ret) { | |
150 | goto error; | |
151 | } | |
152 | ||
153 | if (src_loc) { | |
154 | debug_info_src->line_no = src_loc->line_no; | |
155 | ||
156 | if (src_loc->filename) { | |
157 | debug_info_src->filename = strdup(src_loc->filename); | |
c40a57e5 AB |
158 | if (!debug_info_src->filename) { |
159 | goto error; | |
160 | } | |
ff9ce920 JG |
161 | |
162 | /* | |
163 | * The short version of the filename does not include | |
164 | * the full path, it will only point to the last element | |
165 | * of the path (anything after the last '/'). | |
166 | */ | |
167 | debug_info_src->short_filename = get_filename_from_path( | |
168 | src_loc->filename); | |
169 | ||
c40a57e5 AB |
170 | } |
171 | ||
172 | source_location_destroy(src_loc); | |
173 | } | |
174 | ||
175 | end: | |
176 | return debug_info_src; | |
177 | ||
178 | error: | |
179 | debug_info_source_destroy(debug_info_src); | |
180 | return NULL; | |
181 | } | |
182 | ||
183 | static | |
184 | void proc_debug_info_sources_destroy( | |
185 | struct proc_debug_info_sources *proc_dbg_info_src) | |
186 | { | |
187 | if (!proc_dbg_info_src) { | |
188 | return; | |
189 | } | |
190 | ||
191 | if (proc_dbg_info_src->baddr_to_so_info) { | |
192 | g_hash_table_destroy(proc_dbg_info_src->baddr_to_so_info); | |
193 | } | |
194 | ||
195 | if (proc_dbg_info_src->ip_to_debug_info_src) { | |
196 | g_hash_table_destroy(proc_dbg_info_src->ip_to_debug_info_src); | |
197 | } | |
198 | ||
199 | g_free(proc_dbg_info_src); | |
200 | } | |
201 | ||
202 | static | |
203 | struct proc_debug_info_sources *proc_debug_info_sources_create(void) | |
204 | { | |
205 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; | |
206 | ||
207 | proc_dbg_info_src = g_new0(struct proc_debug_info_sources, 1); | |
208 | if (!proc_dbg_info_src) { | |
209 | goto end; | |
210 | } | |
211 | ||
212 | proc_dbg_info_src->baddr_to_so_info = g_hash_table_new_full( | |
47857613 JG |
213 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, |
214 | (GDestroyNotify) so_info_destroy); | |
c40a57e5 AB |
215 | if (!proc_dbg_info_src->baddr_to_so_info) { |
216 | goto error; | |
217 | } | |
218 | ||
219 | proc_dbg_info_src->ip_to_debug_info_src = g_hash_table_new_full( | |
47857613 | 220 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, |
c40a57e5 AB |
221 | (GDestroyNotify) debug_info_source_destroy); |
222 | if (!proc_dbg_info_src->ip_to_debug_info_src) { | |
223 | goto error; | |
224 | } | |
225 | ||
226 | end: | |
227 | return proc_dbg_info_src; | |
228 | ||
229 | error: | |
230 | proc_debug_info_sources_destroy(proc_dbg_info_src); | |
231 | return NULL; | |
232 | } | |
233 | ||
234 | static | |
235 | struct proc_debug_info_sources *proc_debug_info_sources_ht_get_entry( | |
236 | GHashTable *ht, int64_t vpid) | |
237 | { | |
47857613 | 238 | gpointer key = g_new0(int64_t, 1); |
c40a57e5 AB |
239 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; |
240 | ||
47857613 JG |
241 | if (!key) { |
242 | goto end; | |
243 | } | |
244 | ||
245 | *((int64_t *) key) = vpid; | |
246 | ||
c40a57e5 AB |
247 | /* Exists? Return it */ |
248 | proc_dbg_info_src = g_hash_table_lookup(ht, key); | |
249 | if (proc_dbg_info_src) { | |
250 | goto end; | |
251 | } | |
252 | ||
253 | /* Otherwise, create and return it */ | |
254 | proc_dbg_info_src = proc_debug_info_sources_create(); | |
255 | if (!proc_dbg_info_src) { | |
256 | goto end; | |
257 | } | |
258 | ||
259 | g_hash_table_insert(ht, key, proc_dbg_info_src); | |
47857613 JG |
260 | /* Ownership passed to ht */ |
261 | key = NULL; | |
c40a57e5 | 262 | end: |
47857613 | 263 | g_free(key); |
c40a57e5 AB |
264 | return proc_dbg_info_src; |
265 | } | |
266 | ||
267 | static | |
268 | struct debug_info_source *proc_debug_info_sources_get_entry( | |
269 | struct proc_debug_info_sources *proc_dbg_info_src, uint64_t ip) | |
270 | { | |
271 | struct debug_info_source *debug_info_src = NULL; | |
47857613 | 272 | gpointer key = g_new0(uint64_t, 1); |
c40a57e5 AB |
273 | GHashTableIter iter; |
274 | gpointer baddr, value; | |
275 | ||
47857613 JG |
276 | if (!key) { |
277 | goto end; | |
278 | } | |
279 | ||
280 | *((uint64_t *) key) = ip; | |
281 | ||
c40a57e5 AB |
282 | /* Look in IP to debug infos hash table first. */ |
283 | debug_info_src = g_hash_table_lookup( | |
284 | proc_dbg_info_src->ip_to_debug_info_src, | |
47857613 | 285 | key); |
c40a57e5 AB |
286 | if (debug_info_src) { |
287 | goto end; | |
288 | } | |
289 | ||
290 | /* Check in all so_infos. */ | |
291 | g_hash_table_iter_init(&iter, proc_dbg_info_src->baddr_to_so_info); | |
292 | ||
293 | while (g_hash_table_iter_next(&iter, &baddr, &value)) | |
294 | { | |
295 | struct so_info *so = value; | |
296 | ||
297 | if (!so_info_has_address(value, ip)) { | |
298 | continue; | |
299 | } | |
300 | ||
47857613 JG |
301 | /* |
302 | * Found; add it to cache. | |
303 | * | |
304 | * FIXME: this should be bounded in size (and implement | |
305 | * a caching policy), and entries should be prunned when | |
306 | * libraries are unmapped. | |
307 | */ | |
c40a57e5 AB |
308 | debug_info_src = debug_info_source_create_from_so(so, ip); |
309 | if (debug_info_src) { | |
310 | g_hash_table_insert( | |
311 | proc_dbg_info_src->ip_to_debug_info_src, | |
47857613 JG |
312 | key, debug_info_src); |
313 | /* Ownership passed to ht. */ | |
314 | key = NULL; | |
c40a57e5 AB |
315 | } |
316 | break; | |
317 | } | |
318 | ||
319 | end: | |
47857613 | 320 | free(key); |
c40a57e5 AB |
321 | return debug_info_src; |
322 | } | |
323 | ||
324 | BT_HIDDEN | |
325 | struct debug_info_source *debug_info_query(struct debug_info *debug_info, | |
326 | int64_t vpid, uint64_t ip) | |
327 | { | |
328 | struct debug_info_source *dbg_info_src = NULL; | |
329 | struct proc_debug_info_sources *proc_dbg_info_src; | |
330 | ||
331 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
332 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
333 | if (!proc_dbg_info_src) { | |
334 | goto end; | |
335 | } | |
336 | ||
337 | dbg_info_src = proc_debug_info_sources_get_entry( | |
338 | proc_dbg_info_src, ip); | |
339 | if (!dbg_info_src) { | |
340 | goto end; | |
341 | } | |
342 | ||
343 | end: | |
344 | return dbg_info_src; | |
345 | } | |
346 | ||
347 | BT_HIDDEN | |
348 | struct debug_info *debug_info_create(void) | |
349 | { | |
350 | int ret; | |
351 | struct debug_info *debug_info; | |
352 | ||
353 | debug_info = g_new0(struct debug_info, 1); | |
354 | if (!debug_info) { | |
355 | goto end; | |
356 | } | |
357 | ||
47857613 JG |
358 | debug_info->vpid_to_proc_dbg_info_src = g_hash_table_new_full( |
359 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, | |
c40a57e5 AB |
360 | (GDestroyNotify) proc_debug_info_sources_destroy); |
361 | if (!debug_info->vpid_to_proc_dbg_info_src) { | |
362 | goto error; | |
363 | } | |
364 | ||
365 | ret = debug_info_init(debug_info); | |
366 | if (ret) { | |
367 | goto error; | |
368 | } | |
369 | ||
370 | end: | |
371 | return debug_info; | |
372 | error: | |
373 | g_free(debug_info); | |
374 | return NULL; | |
375 | } | |
376 | ||
377 | BT_HIDDEN | |
378 | void debug_info_destroy(struct debug_info *debug_info) | |
379 | { | |
380 | if (!debug_info) { | |
381 | goto end; | |
382 | } | |
383 | ||
384 | if (debug_info->vpid_to_proc_dbg_info_src) { | |
385 | g_hash_table_destroy(debug_info->vpid_to_proc_dbg_info_src); | |
386 | } | |
387 | ||
388 | g_free(debug_info); | |
389 | end: | |
390 | return; | |
391 | } | |
392 | ||
393 | static | |
394 | void handle_statedump_build_id_event(struct debug_info *debug_info, | |
395 | struct ctf_event_definition *event_def) | |
396 | { | |
397 | struct proc_debug_info_sources *proc_dbg_info_src; | |
398 | struct bt_definition *event_fields_def = NULL; | |
399 | struct bt_definition *sec_def = NULL; | |
400 | struct bt_definition *baddr_def = NULL; | |
401 | struct bt_definition *vpid_def = NULL; | |
402 | struct bt_definition *build_id_def = NULL; | |
403 | struct definition_sequence *build_id_seq; | |
404 | struct so_info *so = NULL; | |
405 | int i; | |
406 | int64_t vpid; | |
407 | uint64_t baddr; | |
408 | uint8_t *build_id = NULL; | |
409 | uint64_t build_id_len; | |
410 | ||
411 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
412 | sec_def = (struct bt_definition *) | |
413 | event_def->stream->stream_event_context; | |
414 | ||
415 | if (!event_fields_def || !sec_def) { | |
416 | goto end; | |
417 | } | |
418 | ||
419 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
420 | if (!baddr_def) { | |
421 | goto end; | |
422 | } | |
423 | ||
424 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
425 | if (!vpid_def) { | |
426 | goto end; | |
427 | } | |
428 | ||
429 | build_id_def = bt_lookup_definition(event_fields_def, "_build_id"); | |
430 | if (!build_id_def) { | |
431 | goto end; | |
432 | } | |
433 | ||
434 | if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
435 | goto end; | |
436 | } | |
437 | ||
438 | if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
439 | goto end; | |
440 | } | |
441 | ||
442 | if (build_id_def->declaration->id != BT_CTF_TYPE_ID_SEQUENCE) { | |
443 | goto end; | |
444 | } | |
445 | ||
446 | baddr = bt_get_unsigned_int(baddr_def); | |
447 | vpid = bt_get_signed_int(vpid_def); | |
448 | build_id_seq = container_of(build_id_def, | |
449 | struct definition_sequence, p); | |
450 | build_id_len = build_id_seq->length->value._unsigned; | |
451 | ||
452 | build_id = g_malloc(build_id_len); | |
453 | if (!build_id) { | |
454 | goto end; | |
455 | } | |
456 | ||
457 | for (i = 0; i < build_id_len; ++i) { | |
458 | struct bt_definition **field; | |
459 | ||
460 | field = (struct bt_definition **) &g_ptr_array_index( | |
461 | build_id_seq->elems, i); | |
462 | build_id[i] = bt_get_unsigned_int(*field); | |
463 | } | |
464 | ||
465 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
466 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
467 | if (!proc_dbg_info_src) { | |
468 | goto end; | |
469 | } | |
470 | ||
471 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, | |
472 | (gpointer) &baddr); | |
473 | if (!so) { | |
474 | /* | |
475 | * The build_id event comes after the so has been | |
476 | * created. If it isn't found, just ignore this event. | |
477 | */ | |
478 | goto end; | |
479 | } | |
480 | ||
481 | so_info_set_build_id(so, build_id, build_id_len); | |
482 | ||
483 | end: | |
484 | free(build_id); | |
485 | return; | |
486 | } | |
487 | ||
488 | static | |
489 | void handle_statedump_debug_link_event(struct debug_info *debug_info, | |
490 | struct ctf_event_definition *event_def) | |
491 | { | |
492 | struct proc_debug_info_sources *proc_dbg_info_src; | |
493 | struct bt_definition *event_fields_def = NULL; | |
494 | struct bt_definition *sec_def = NULL; | |
495 | struct bt_definition *baddr_def = NULL; | |
496 | struct bt_definition *vpid_def = NULL; | |
497 | struct bt_definition *filename_def = NULL; | |
498 | struct bt_definition *crc32_def = NULL; | |
499 | struct so_info *so = NULL; | |
500 | int64_t vpid; | |
501 | uint64_t baddr; | |
502 | char *filename = NULL; | |
503 | uint32_t crc32; | |
504 | ||
505 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
506 | sec_def = (struct bt_definition *) | |
507 | event_def->stream->stream_event_context; | |
508 | ||
509 | if (!event_fields_def || !sec_def) { | |
510 | goto end; | |
511 | } | |
512 | ||
513 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
514 | if (!baddr_def) { | |
515 | goto end; | |
516 | } | |
517 | ||
518 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
519 | if (!vpid_def) { | |
520 | goto end; | |
521 | } | |
522 | ||
523 | filename_def = bt_lookup_definition(event_fields_def, "_filename"); | |
524 | if (!filename_def) { | |
525 | goto end; | |
526 | } | |
527 | ||
528 | crc32_def = bt_lookup_definition(event_fields_def, "_crc32"); | |
529 | if (!crc32_def) { | |
530 | goto end; | |
531 | } | |
532 | ||
533 | if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
534 | goto end; | |
535 | } | |
536 | ||
537 | if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
538 | goto end; | |
539 | } | |
540 | ||
541 | if (filename_def->declaration->id != BT_CTF_TYPE_ID_STRING) { | |
542 | goto end; | |
543 | } | |
544 | ||
545 | if (crc32_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
546 | goto end; | |
547 | } | |
548 | ||
549 | baddr = bt_get_unsigned_int(baddr_def); | |
550 | vpid = bt_get_signed_int(vpid_def); | |
551 | ||
552 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
553 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
554 | if (!proc_dbg_info_src) { | |
555 | goto end; | |
556 | } | |
557 | ||
558 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, | |
559 | (gpointer) &baddr); | |
560 | if (!so) { | |
561 | /* | |
562 | * The debug_link event comes after the so has been | |
563 | * created. If it isn't found, just ignore this event. | |
564 | */ | |
565 | goto end; | |
566 | } | |
567 | ||
568 | filename = bt_get_string(filename_def); | |
569 | crc32 = bt_get_unsigned_int(crc32_def); | |
570 | ||
571 | so_info_set_debug_link(so, filename, crc32); | |
572 | ||
573 | end: | |
574 | return; | |
575 | } | |
576 | ||
577 | static | |
578 | void handle_statedump_soinfo_event(struct debug_info *debug_info, | |
579 | struct ctf_event_definition *event_def) | |
580 | { | |
581 | struct bt_definition *baddr_def = NULL; | |
582 | struct bt_definition *memsz_def = NULL; | |
583 | struct bt_definition *sopath_def = NULL; | |
584 | struct bt_definition *vpid_def = NULL; | |
585 | struct bt_definition *event_fields_def = NULL; | |
586 | struct bt_definition *sec_def = NULL; | |
587 | struct proc_debug_info_sources *proc_dbg_info_src; | |
588 | struct so_info *so; | |
589 | uint64_t baddr, memsz; | |
590 | int64_t vpid; | |
591 | const char *sopath; | |
47857613 | 592 | gpointer key = NULL; |
c40a57e5 AB |
593 | |
594 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
595 | sec_def = (struct bt_definition *) | |
596 | event_def->stream->stream_event_context; | |
597 | ||
598 | if (!event_fields_def || !sec_def) { | |
599 | goto end; | |
600 | } | |
601 | ||
602 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
603 | if (!baddr_def) { | |
604 | goto end; | |
605 | } | |
606 | ||
607 | memsz_def = bt_lookup_definition(event_fields_def, "_memsz"); | |
608 | if (!memsz_def) { | |
609 | goto end; | |
610 | } | |
611 | ||
612 | sopath_def = bt_lookup_definition(event_fields_def, "_sopath"); | |
613 | if (!sopath_def) { | |
614 | goto end; | |
615 | } | |
616 | ||
617 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
618 | if (!vpid_def) { | |
619 | goto end; | |
620 | } | |
621 | ||
622 | if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
623 | goto end; | |
624 | } | |
625 | ||
626 | if (memsz_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
627 | goto end; | |
628 | } | |
629 | ||
630 | if (sopath_def->declaration->id != BT_CTF_TYPE_ID_STRING) { | |
631 | goto end; | |
632 | } | |
633 | ||
634 | if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
635 | goto end; | |
636 | } | |
637 | ||
638 | baddr = bt_get_unsigned_int(baddr_def); | |
639 | memsz = bt_get_unsigned_int(memsz_def); | |
640 | sopath = bt_get_string(sopath_def); | |
641 | vpid = bt_get_signed_int(vpid_def); | |
642 | ||
643 | if (!sopath) { | |
644 | goto end; | |
645 | } | |
646 | ||
647 | if (memsz == 0) { | |
648 | /* Ignore VDSO. */ | |
649 | goto end; | |
650 | } | |
651 | ||
652 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
653 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
654 | if (!proc_dbg_info_src) { | |
655 | goto end; | |
656 | } | |
657 | ||
47857613 JG |
658 | key = g_new0(uint64_t, 1); |
659 | if (!key) { | |
660 | goto end; | |
661 | } | |
662 | ||
663 | *((uint64_t *) key) = baddr; | |
664 | ||
c40a57e5 | 665 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, |
47857613 | 666 | key); |
c40a57e5 AB |
667 | if (so) { |
668 | goto end; | |
669 | } | |
670 | ||
671 | so = so_info_create(sopath, baddr, memsz); | |
672 | if (!so) { | |
673 | goto end; | |
674 | } | |
675 | ||
676 | g_hash_table_insert(proc_dbg_info_src->baddr_to_so_info, | |
47857613 JG |
677 | key, so); |
678 | /* Ownership passed to ht. */ | |
679 | key = NULL; | |
c40a57e5 AB |
680 | |
681 | end: | |
47857613 | 682 | g_free(key); |
c40a57e5 AB |
683 | return; |
684 | } | |
685 | ||
686 | static | |
687 | void handle_statedump_start(struct debug_info *debug_info, | |
688 | struct ctf_event_definition *event_def) | |
689 | { | |
690 | struct bt_definition *vpid_def = NULL; | |
691 | struct bt_definition *sec_def = NULL; | |
692 | struct proc_debug_info_sources *proc_dbg_info_src; | |
693 | int64_t vpid; | |
694 | ||
695 | sec_def = (struct bt_definition *) | |
696 | event_def->stream->stream_event_context; | |
697 | if (!sec_def) { | |
698 | goto end; | |
699 | } | |
700 | ||
701 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
702 | if (!vpid_def) { | |
703 | goto end; | |
704 | } | |
705 | ||
706 | vpid = bt_get_signed_int(vpid_def); | |
707 | ||
708 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
709 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
710 | if (!proc_dbg_info_src) { | |
711 | goto end; | |
712 | } | |
713 | ||
714 | g_hash_table_remove_all(proc_dbg_info_src->baddr_to_so_info); | |
715 | g_hash_table_remove_all(proc_dbg_info_src->ip_to_debug_info_src); | |
716 | ||
717 | end: | |
718 | return; | |
719 | } | |
720 | ||
721 | static | |
722 | void register_event_debug_infos(struct debug_info *debug_info, | |
723 | struct ctf_event_definition *event) | |
724 | { | |
725 | struct bt_definition *ip_def, *vpid_def; | |
726 | int64_t vpid; | |
727 | uint64_t ip; | |
728 | struct bt_definition *sec_def; | |
729 | ||
730 | /* Get stream event context definition. */ | |
731 | sec_def = (struct bt_definition *) event->stream->stream_event_context; | |
732 | if (!sec_def) { | |
733 | goto end; | |
734 | } | |
735 | ||
736 | /* Get "ip" and "vpid" definitions. */ | |
737 | vpid_def = bt_lookup_definition((struct bt_definition *) sec_def, | |
738 | "_vpid"); | |
739 | ip_def = bt_lookup_definition((struct bt_definition *) sec_def, "_ip"); | |
740 | ||
741 | if (!vpid_def || !ip_def) { | |
742 | goto end; | |
743 | } | |
744 | ||
745 | vpid = bt_get_signed_int(vpid_def); | |
746 | ip = bt_get_unsigned_int(ip_def); | |
747 | ||
748 | /* Get debug info for this context. */ | |
749 | ((struct definition_integer *) ip_def)->debug_info_src = | |
750 | debug_info_query(debug_info, vpid, ip); | |
751 | ||
752 | end: | |
753 | return; | |
754 | } | |
755 | ||
756 | BT_HIDDEN | |
757 | void debug_info_handle_event(struct debug_info *debug_info, | |
758 | struct ctf_event_definition *event) | |
759 | { | |
760 | struct ctf_event_declaration *event_class; | |
761 | struct ctf_stream_declaration *stream_class; | |
762 | ||
763 | if (!debug_info || !event) { | |
764 | goto end; | |
765 | } | |
766 | ||
767 | stream_class = event->stream->stream_class; | |
768 | event_class = g_ptr_array_index(stream_class->events_by_id, | |
769 | event->stream->event_id); | |
770 | ||
771 | if (event_class->name == debug_info->q_statedump_soinfo || | |
772 | event_class->name == debug_info->q_dl_open) { | |
773 | /* State dump/dlopen() */ | |
774 | handle_statedump_soinfo_event(debug_info, event); | |
775 | } else if (event_class->name == debug_info->q_statedump_start) { | |
776 | /* Start state dump */ | |
777 | handle_statedump_start(debug_info, event); | |
778 | } else if (event_class->name == debug_info->q_statedump_debug_link) { | |
779 | /* Debug link info */ | |
780 | handle_statedump_debug_link_event(debug_info, event); | |
781 | } else if (event_class->name == debug_info->q_statedump_build_id) { | |
782 | /* Build ID info */ | |
783 | handle_statedump_build_id_event(debug_info, event); | |
784 | } else { | |
785 | /* Other events: register debug infos */ | |
786 | register_event_debug_infos(debug_info, event); | |
787 | } | |
788 | ||
789 | end: | |
790 | return; | |
791 | } |