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b5a8598f 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> | |
7 | * | |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | * SOFTWARE. | |
25 | */ | |
26 | ||
27 | #include <assert.h> | |
28 | #include <glib.h> | |
29 | #include <babeltrace/types.h> | |
30 | #include <babeltrace/ctf-ir/metadata.h> | |
31 | #include <babeltrace/debuginfo.h> | |
32 | #include <babeltrace/so-info.h> | |
33 | ||
34 | struct proc_debug_info_sources { | |
35 | /* | |
36 | * Hash table: base address to so info; owned by | |
37 | * proc_debug_info_sources. | |
38 | */ | |
39 | GHashTable *baddr_to_so_info; | |
40 | ||
41 | /* | |
42 | * Hash table: IP to (struct debug_info_source *); owned by | |
43 | * proc_debug_info_sources. | |
44 | */ | |
45 | GHashTable *ip_to_debug_info_src; | |
46 | }; | |
47 | ||
48 | struct debug_info { | |
49 | /* | |
50 | * Hash table of VPIDs (int64_t) to (struct ctf_proc_debug_infos*); | |
51 | * owned by debug_info. | |
52 | */ | |
53 | GHashTable *vpid_to_proc_dbg_info_src; | |
54 | GQuark q_statedump_soinfo; | |
55 | GQuark q_statedump_debug_link; | |
56 | GQuark q_statedump_build_id; | |
57 | GQuark q_statedump_start; | |
58 | GQuark q_dl_open; | |
59 | }; | |
60 | ||
61 | static | |
62 | int debug_info_init(struct debug_info *info) | |
63 | { | |
64 | info->q_statedump_soinfo = g_quark_from_string( | |
65 | "lttng_ust_statedump:soinfo"); | |
66 | info->q_statedump_debug_link = g_quark_from_string( | |
67 | "lttng_ust_statedump:debug_link)"); | |
68 | info->q_statedump_build_id = g_quark_from_string( | |
69 | "lttng_ust_statedump:build_id"); | |
70 | info->q_statedump_start = g_quark_from_string( | |
71 | "lttng_ust_statedump:start"); | |
72 | info->q_dl_open = g_quark_from_string("lttng_ust_dl:dlopen"); | |
73 | ||
74 | return so_info_init(); | |
75 | } | |
76 | ||
77 | static | |
78 | void debug_info_source_destroy(struct debug_info_source *debug_info_src) | |
79 | { | |
80 | if (!debug_info_src) { | |
81 | return; | |
82 | } | |
83 | ||
84 | free(debug_info_src->func); | |
85 | free(debug_info_src->filename); | |
86 | g_free(debug_info_src); | |
87 | } | |
88 | ||
89 | static | |
90 | struct debug_info_source *debug_info_source_create_from_so(struct so_info *so, | |
91 | uint64_t ip) | |
92 | { | |
93 | int ret; | |
94 | struct debug_info_source *debug_info_src = NULL; | |
95 | struct source_location *src_loc = NULL; | |
96 | ||
97 | debug_info_src = g_new0(struct debug_info_source, 1); | |
98 | ||
99 | if (!debug_info_src) { | |
100 | goto end; | |
101 | } | |
102 | ||
103 | /* Lookup function name */ | |
104 | ret = so_info_lookup_function_name(so, ip, &debug_info_src->func); | |
105 | if (ret) { | |
106 | goto error; | |
107 | } | |
108 | ||
109 | /* Can't retrieve src_loc from ELF only, skip it */ | |
110 | if (so->is_elf_only) { | |
111 | goto end; | |
112 | } | |
113 | ||
114 | /* Lookup source location */ | |
115 | ret = so_info_lookup_source_location(so, ip, &src_loc); | |
116 | if (ret) { | |
117 | goto error; | |
118 | } | |
119 | ||
120 | if (src_loc) { | |
121 | debug_info_src->line_no = src_loc->line_no; | |
122 | ||
123 | if (src_loc->filename) { | |
124 | debug_info_src->filename = strdup(src_loc->filename); | |
125 | ||
126 | if (!debug_info_src->filename) { | |
127 | goto error; | |
128 | } | |
129 | } | |
130 | ||
131 | source_location_destroy(src_loc); | |
132 | } | |
133 | ||
134 | end: | |
135 | return debug_info_src; | |
136 | ||
137 | error: | |
138 | debug_info_source_destroy(debug_info_src); | |
139 | return NULL; | |
140 | } | |
141 | ||
142 | static | |
143 | void proc_debug_info_sources_destroy( | |
144 | struct proc_debug_info_sources *proc_dbg_info_src) | |
145 | { | |
146 | if (!proc_dbg_info_src) { | |
147 | return; | |
148 | } | |
149 | ||
150 | if (proc_dbg_info_src->baddr_to_so_info) { | |
151 | g_hash_table_destroy(proc_dbg_info_src->baddr_to_so_info); | |
152 | } | |
153 | ||
154 | if (proc_dbg_info_src->ip_to_debug_info_src) { | |
155 | g_hash_table_destroy(proc_dbg_info_src->ip_to_debug_info_src); | |
156 | } | |
157 | ||
158 | g_free(proc_dbg_info_src); | |
159 | } | |
160 | ||
161 | static | |
162 | struct proc_debug_info_sources *proc_debug_info_sources_create(void) | |
163 | { | |
164 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; | |
165 | ||
166 | proc_dbg_info_src = g_new0(struct proc_debug_info_sources, 1); | |
167 | if (!proc_dbg_info_src) { | |
168 | goto end; | |
169 | } | |
170 | ||
171 | proc_dbg_info_src->baddr_to_so_info = g_hash_table_new_full( | |
172 | NULL, NULL, NULL, (GDestroyNotify) so_info_destroy); | |
173 | if (!proc_dbg_info_src->baddr_to_so_info) { | |
174 | goto error; | |
175 | } | |
176 | ||
177 | proc_dbg_info_src->ip_to_debug_info_src = g_hash_table_new_full( | |
178 | NULL, NULL, NULL, | |
179 | (GDestroyNotify) debug_info_source_destroy); | |
180 | if (!proc_dbg_info_src->ip_to_debug_info_src) { | |
181 | goto error; | |
182 | } | |
183 | ||
184 | end: | |
185 | return proc_dbg_info_src; | |
186 | ||
187 | error: | |
188 | proc_debug_info_sources_destroy(proc_dbg_info_src); | |
189 | return NULL; | |
190 | } | |
191 | ||
192 | static | |
193 | struct proc_debug_info_sources *proc_debug_info_sources_ht_get_entry( | |
194 | GHashTable *ht, int64_t vpid) | |
195 | { | |
196 | gpointer key = (gpointer) vpid; | |
197 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; | |
198 | ||
199 | /* Exists? Return it */ | |
200 | proc_dbg_info_src = g_hash_table_lookup(ht, key); | |
201 | if (proc_dbg_info_src) { | |
202 | goto end; | |
203 | } | |
204 | ||
205 | /* Otherwise, create and return it */ | |
206 | proc_dbg_info_src = proc_debug_info_sources_create(); | |
207 | if (!proc_dbg_info_src) { | |
208 | goto end; | |
209 | } | |
210 | ||
211 | g_hash_table_insert(ht, key, proc_dbg_info_src); | |
212 | end: | |
213 | return proc_dbg_info_src; | |
214 | } | |
215 | ||
216 | static | |
217 | struct debug_info_source *proc_debug_info_sources_get_entry( | |
218 | struct proc_debug_info_sources *proc_dbg_info_src, uint64_t ip) | |
219 | { | |
220 | struct debug_info_source *debug_info_src = NULL; | |
221 | gint64 key = (gint64) ip; | |
222 | GHashTableIter iter; | |
223 | gpointer baddr, value; | |
224 | ||
225 | /* Look in IP to debug infos hash table first. */ | |
226 | debug_info_src = g_hash_table_lookup( | |
227 | proc_dbg_info_src->ip_to_debug_info_src, | |
228 | (gpointer) key); | |
229 | if (debug_info_src) { | |
230 | goto end; | |
231 | } | |
232 | ||
233 | /* Check in all so_infos. */ | |
234 | g_hash_table_iter_init(&iter, proc_dbg_info_src->baddr_to_so_info); | |
235 | ||
236 | while (g_hash_table_iter_next(&iter, &baddr, &value)) | |
237 | { | |
238 | struct so_info *so = value; | |
239 | ||
240 | if (!so_info_has_address(value, ip)) { | |
241 | continue; | |
242 | } | |
243 | ||
244 | /* Found; add it to cache. */ | |
245 | debug_info_src = debug_info_source_create_from_so(so, ip); | |
246 | if (debug_info_src) { | |
247 | g_hash_table_insert( | |
248 | proc_dbg_info_src->ip_to_debug_info_src, | |
249 | (gpointer) key, debug_info_src); | |
250 | } | |
251 | break; | |
252 | } | |
253 | ||
254 | end: | |
255 | return debug_info_src; | |
256 | } | |
257 | ||
258 | BT_HIDDEN | |
259 | struct debug_info_source *debug_info_query(struct debug_info *debug_info, | |
260 | int64_t vpid, uint64_t ip) | |
261 | { | |
262 | struct debug_info_source *dbg_info_src = NULL; | |
263 | struct proc_debug_info_sources *proc_dbg_info_src; | |
264 | ||
265 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
266 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
267 | if (!proc_dbg_info_src) { | |
268 | goto end; | |
269 | } | |
270 | ||
271 | dbg_info_src = proc_debug_info_sources_get_entry( | |
272 | proc_dbg_info_src, ip); | |
273 | if (!dbg_info_src) { | |
274 | goto end; | |
275 | } | |
276 | ||
277 | end: | |
278 | return dbg_info_src; | |
279 | } | |
280 | ||
281 | BT_HIDDEN | |
282 | struct debug_info *debug_info_create(void) | |
283 | { | |
284 | int ret; | |
285 | struct debug_info *debug_info; | |
286 | ||
287 | debug_info = g_new0(struct debug_info, 1); | |
288 | if (!debug_info) { | |
289 | goto end; | |
290 | } | |
291 | ||
292 | debug_info->vpid_to_proc_dbg_info_src = g_hash_table_new_full(NULL, | |
293 | NULL, NULL, | |
294 | (GDestroyNotify) proc_debug_info_sources_destroy); | |
295 | if (!debug_info->vpid_to_proc_dbg_info_src) { | |
296 | goto error; | |
297 | } | |
298 | ||
299 | ret = debug_info_init(debug_info); | |
300 | if (ret) { | |
301 | goto error; | |
302 | } | |
303 | ||
304 | end: | |
305 | return debug_info; | |
306 | error: | |
307 | g_free(debug_info); | |
308 | return NULL; | |
309 | } | |
310 | ||
311 | BT_HIDDEN | |
312 | void debug_info_destroy(struct debug_info *debug_info) | |
313 | { | |
314 | if (!debug_info) { | |
315 | goto end; | |
316 | } | |
317 | ||
318 | if (debug_info->vpid_to_proc_dbg_info_src) { | |
319 | g_hash_table_destroy(debug_info->vpid_to_proc_dbg_info_src); | |
320 | } | |
321 | ||
322 | g_free(debug_info); | |
323 | end: | |
324 | return; | |
325 | } | |
326 | ||
327 | static | |
328 | void handle_statedump_build_id_event(struct debug_info *debug_info, | |
329 | struct ctf_event_definition *event_def) | |
330 | { | |
331 | struct proc_debug_info_sources *proc_dbg_info_src; | |
332 | struct bt_definition *event_fields_def = NULL; | |
333 | struct bt_definition *sec_def = NULL; | |
334 | struct bt_definition *baddr_def = NULL; | |
335 | struct bt_definition *vpid_def = NULL; | |
336 | struct bt_definition *build_id_def = NULL; | |
337 | struct definition_sequence *build_id_seq; | |
338 | struct so_info *so = NULL; | |
339 | int i; | |
340 | int64_t vpid; | |
341 | uint64_t baddr; | |
342 | uint8_t *build_id = NULL; | |
343 | uint64_t build_id_len; | |
344 | ||
345 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
346 | sec_def = (struct bt_definition *) | |
347 | event_def->stream->stream_event_context; | |
348 | ||
349 | if (!event_fields_def || !sec_def) { | |
350 | goto end; | |
351 | } | |
352 | ||
353 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
354 | if (!baddr_def) { | |
355 | goto end; | |
356 | } | |
357 | ||
358 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
359 | if (!vpid_def) { | |
360 | goto end; | |
361 | } | |
362 | ||
363 | build_id_def = bt_lookup_definition(event_fields_def, "_build_id"); | |
364 | if (!build_id_def) { | |
365 | goto end; | |
366 | } | |
367 | ||
368 | if (baddr_def->declaration->id != CTF_TYPE_INTEGER) { | |
369 | goto end; | |
370 | } | |
371 | ||
372 | if (vpid_def->declaration->id != CTF_TYPE_INTEGER) { | |
373 | goto end; | |
374 | } | |
375 | ||
376 | if (build_id_def->declaration->id != CTF_TYPE_SEQUENCE) { | |
377 | goto end; | |
378 | } | |
379 | ||
380 | baddr = bt_get_unsigned_int(baddr_def); | |
381 | vpid = bt_get_signed_int(vpid_def); | |
382 | build_id_seq = container_of(build_id_def, | |
383 | struct definition_sequence, p); | |
384 | build_id_len = build_id_seq->length->value._unsigned; | |
385 | ||
386 | build_id = g_malloc(build_id_len); | |
387 | if (!build_id) { | |
388 | goto end; | |
389 | } | |
390 | ||
391 | for (i = 0; i < build_id_len; ++i) { | |
392 | struct bt_definition **field; | |
393 | ||
394 | field = (struct bt_definition **) &g_ptr_array_index( | |
395 | build_id_seq->elems, i); | |
396 | build_id[i] = bt_get_unsigned_int(*field); | |
397 | } | |
398 | ||
399 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
400 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
401 | if (!proc_dbg_info_src) { | |
402 | goto end; | |
403 | } | |
404 | ||
405 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, | |
406 | (gpointer) &baddr); | |
407 | if (!so) { | |
408 | /* | |
409 | * The build_id event comes after the so has been | |
410 | * created. If it isn't found, just ignore this event. | |
411 | */ | |
412 | goto end; | |
413 | } | |
414 | ||
415 | so_info_set_build_id(so, build_id, build_id_len); | |
416 | ||
417 | end: | |
418 | free(build_id); | |
419 | return; | |
420 | } | |
421 | ||
422 | static | |
423 | void handle_statedump_debug_link_event(struct debug_info *debug_info, | |
424 | struct ctf_event_definition *event_def) | |
425 | { | |
426 | struct proc_debug_info_sources *proc_dbg_info_src; | |
427 | struct bt_definition *event_fields_def = NULL; | |
428 | struct bt_definition *sec_def = NULL; | |
429 | struct bt_definition *baddr_def = NULL; | |
430 | struct bt_definition *vpid_def = NULL; | |
431 | struct bt_definition *filename_def = NULL; | |
432 | struct bt_definition *crc32_def = NULL; | |
433 | struct so_info *so = NULL; | |
434 | int64_t vpid; | |
435 | uint64_t baddr; | |
436 | char *filename = NULL; | |
437 | uint32_t crc32; | |
438 | ||
439 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
440 | sec_def = (struct bt_definition *) | |
441 | event_def->stream->stream_event_context; | |
442 | ||
443 | if (!event_fields_def || !sec_def) { | |
444 | goto end; | |
445 | } | |
446 | ||
447 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
448 | if (!baddr_def) { | |
449 | goto end; | |
450 | } | |
451 | ||
452 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
453 | if (!vpid_def) { | |
454 | goto end; | |
455 | } | |
456 | ||
457 | filename_def = bt_lookup_definition(event_fields_def, "_filename"); | |
458 | if (!filename_def) { | |
459 | goto end; | |
460 | } | |
461 | ||
462 | crc32_def = bt_lookup_definition(event_fields_def, "_crc32"); | |
463 | if (!crc32_def) { | |
464 | goto end; | |
465 | } | |
466 | ||
467 | if (baddr_def->declaration->id != CTF_TYPE_INTEGER) { | |
468 | goto end; | |
469 | } | |
470 | ||
471 | if (vpid_def->declaration->id != CTF_TYPE_INTEGER) { | |
472 | goto end; | |
473 | } | |
474 | ||
475 | if (filename_def->declaration->id != CTF_TYPE_STRING) { | |
476 | goto end; | |
477 | } | |
478 | ||
479 | if (crc32_def->declaration->id != CTF_TYPE_INTEGER) { | |
480 | goto end; | |
481 | } | |
482 | ||
483 | baddr = bt_get_unsigned_int(baddr_def); | |
484 | vpid = bt_get_signed_int(vpid_def); | |
485 | ||
486 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
487 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
488 | if (!proc_dbg_info_src) { | |
489 | goto end; | |
490 | } | |
491 | ||
492 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, | |
493 | (gpointer) &baddr); | |
494 | if (!so) { | |
495 | /* | |
496 | * The debug_link event comes after the so has been | |
497 | * created. If it isn't found, just ignore this event. | |
498 | */ | |
499 | goto end; | |
500 | } | |
501 | ||
502 | filename = bt_get_string(filename_def); | |
503 | crc32 = bt_get_unsigned_int(crc32_def); | |
504 | ||
505 | so_info_set_debug_link(so, filename, crc32); | |
506 | ||
507 | end: | |
508 | return; | |
509 | } | |
510 | ||
511 | static | |
512 | void handle_statedump_soinfo_event(struct debug_info *debug_info, | |
513 | struct ctf_event_definition *event_def) | |
514 | { | |
515 | struct bt_definition *baddr_def = NULL; | |
516 | struct bt_definition *memsz_def = NULL; | |
517 | struct bt_definition *sopath_def = NULL; | |
518 | struct bt_definition *vpid_def = NULL; | |
519 | struct bt_definition *event_fields_def = NULL; | |
520 | struct bt_definition *sec_def = NULL; | |
521 | struct proc_debug_info_sources *proc_dbg_info_src; | |
522 | struct so_info *so; | |
523 | uint64_t baddr, memsz; | |
524 | int64_t vpid; | |
525 | const char *sopath; | |
526 | ||
527 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
528 | sec_def = (struct bt_definition *) | |
529 | event_def->stream->stream_event_context; | |
530 | ||
531 | if (!event_fields_def || !sec_def) { | |
532 | goto end; | |
533 | } | |
534 | ||
535 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
536 | if (!baddr_def) { | |
537 | goto end; | |
538 | } | |
539 | ||
540 | memsz_def = bt_lookup_definition(event_fields_def, "_memsz"); | |
541 | if (!memsz_def) { | |
542 | goto end; | |
543 | } | |
544 | ||
545 | sopath_def = bt_lookup_definition(event_fields_def, "_sopath"); | |
546 | if (!sopath_def) { | |
547 | goto end; | |
548 | } | |
549 | ||
550 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
551 | if (!vpid_def) { | |
552 | goto end; | |
553 | } | |
554 | ||
555 | if (baddr_def->declaration->id != CTF_TYPE_INTEGER) { | |
556 | goto end; | |
557 | } | |
558 | ||
559 | if (memsz_def->declaration->id != CTF_TYPE_INTEGER) { | |
560 | goto end; | |
561 | } | |
562 | ||
563 | if (sopath_def->declaration->id != CTF_TYPE_STRING) { | |
564 | goto end; | |
565 | } | |
566 | ||
567 | if (vpid_def->declaration->id != CTF_TYPE_INTEGER) { | |
568 | goto end; | |
569 | } | |
570 | ||
571 | baddr = bt_get_unsigned_int(baddr_def); | |
572 | memsz = bt_get_unsigned_int(memsz_def); | |
573 | sopath = bt_get_string(sopath_def); | |
574 | vpid = bt_get_signed_int(vpid_def); | |
575 | ||
576 | if (!sopath) { | |
577 | goto end; | |
578 | } | |
579 | ||
580 | if (memsz == 0) { | |
581 | /* Ignore VDSO. */ | |
582 | goto end; | |
583 | } | |
584 | ||
585 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
586 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
587 | if (!proc_dbg_info_src) { | |
588 | goto end; | |
589 | } | |
590 | ||
591 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, | |
592 | (gpointer) baddr); | |
593 | if (so) { | |
594 | goto end; | |
595 | } | |
596 | ||
597 | so = so_info_create(sopath, baddr, memsz); | |
598 | if (!so) { | |
599 | goto end; | |
600 | } | |
601 | ||
602 | g_hash_table_insert(proc_dbg_info_src->baddr_to_so_info, | |
603 | (gpointer) baddr, so); | |
604 | ||
605 | end: | |
606 | return; | |
607 | } | |
608 | ||
609 | static | |
610 | void handle_statedump_start(struct debug_info *debug_info, | |
611 | struct ctf_event_definition *event_def) | |
612 | { | |
613 | struct bt_definition *vpid_def = NULL; | |
614 | struct bt_definition *sec_def = NULL; | |
615 | struct proc_debug_info_sources *proc_dbg_info_src; | |
616 | int64_t vpid; | |
617 | ||
618 | sec_def = (struct bt_definition *) | |
619 | event_def->stream->stream_event_context; | |
620 | if (!sec_def) { | |
621 | goto end; | |
622 | } | |
623 | ||
624 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
625 | if (!vpid_def) { | |
626 | goto end; | |
627 | } | |
628 | ||
629 | vpid = bt_get_signed_int(vpid_def); | |
630 | ||
631 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
632 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
633 | if (!proc_dbg_info_src) { | |
634 | goto end; | |
635 | } | |
636 | ||
637 | g_hash_table_remove_all(proc_dbg_info_src->baddr_to_so_info); | |
638 | g_hash_table_remove_all(proc_dbg_info_src->ip_to_debug_info_src); | |
639 | ||
640 | end: | |
641 | return; | |
642 | } | |
643 | ||
644 | static | |
645 | void register_event_debug_infos(struct debug_info *debug_info, | |
646 | struct ctf_event_definition *event) | |
647 | { | |
648 | struct bt_definition *ip_def, *vpid_def; | |
649 | int64_t vpid; | |
650 | uint64_t ip; | |
651 | struct bt_definition *sec_def; | |
652 | ||
653 | /* Get stream event context definition. */ | |
654 | sec_def = (struct bt_definition *) event->stream->stream_event_context; | |
655 | if (!sec_def) { | |
656 | goto end; | |
657 | } | |
658 | ||
659 | /* Get "ip" and "vpid" definitions. */ | |
660 | vpid_def = bt_lookup_definition((struct bt_definition *) sec_def, | |
661 | "_vpid"); | |
662 | ip_def = bt_lookup_definition((struct bt_definition *) sec_def, "_ip"); | |
663 | ||
664 | if (!vpid_def || !ip_def) { | |
665 | goto end; | |
666 | } | |
667 | ||
668 | vpid = bt_get_signed_int(vpid_def); | |
669 | ip = bt_get_unsigned_int(ip_def); | |
670 | ||
671 | /* Get debug info for this context. */ | |
672 | ((struct definition_integer *) ip_def)->debug_info_src = | |
673 | debug_info_query(debug_info, vpid, ip); | |
674 | ||
675 | end: | |
676 | return; | |
677 | } | |
678 | ||
679 | BT_HIDDEN | |
680 | void debug_info_handle_event(struct debug_info *debug_info, | |
681 | struct ctf_event_definition *event) | |
682 | { | |
683 | struct ctf_event_declaration *event_class; | |
684 | struct ctf_stream_declaration *stream_class; | |
685 | ||
686 | if (!debug_info || !event) { | |
687 | goto end; | |
688 | } | |
689 | ||
690 | stream_class = event->stream->stream_class; | |
691 | event_class = g_ptr_array_index(stream_class->events_by_id, | |
692 | event->stream->event_id); | |
693 | ||
694 | if (event_class->name == debug_info->q_statedump_soinfo || | |
695 | event_class->name == debug_info->q_dl_open) { | |
696 | /* State dump/dlopen() */ | |
697 | handle_statedump_soinfo_event(debug_info, event); | |
698 | } else if (event_class->name == debug_info->q_statedump_start) { | |
699 | /* Start state dump */ | |
700 | handle_statedump_start(debug_info, event); | |
701 | } else if (event_class->name == debug_info->q_statedump_debug_link) { | |
702 | /* Debug link info */ | |
703 | handle_statedump_debug_link_event(debug_info, event); | |
704 | } else if (event_class->name == debug_info->q_statedump_build_id) { | |
705 | /* Build ID info */ | |
706 | handle_statedump_build_id_event(debug_info, event); | |
707 | } else { | |
708 | /* Other events: register debug infos */ | |
709 | register_event_debug_infos(debug_info, event); | |
710 | } | |
711 | ||
712 | end: | |
713 | return; | |
714 | } |