Commit | Line | Data |
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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> | |
458af89d | 7 | * Copyright (c) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
b5a8598f 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> | |
458af89d | 34 | #include <babeltrace/babeltrace-internal.h> |
beef86dc | 35 | #include <babeltrace/utils.h> |
b5a8598f AB |
36 | |
37 | struct proc_debug_info_sources { | |
38 | /* | |
71235b6d | 39 | * Hash table: base address (pointer to uint64_t) to so info; owned by |
b5a8598f AB |
40 | * proc_debug_info_sources. |
41 | */ | |
42 | GHashTable *baddr_to_so_info; | |
43 | ||
44 | /* | |
71235b6d JG |
45 | * Hash table: IP (pointer to uint64_t) to (struct debug_info_source *); |
46 | * owned by proc_debug_info_sources. | |
b5a8598f AB |
47 | */ |
48 | GHashTable *ip_to_debug_info_src; | |
49 | }; | |
50 | ||
51 | struct debug_info { | |
52 | /* | |
71235b6d JG |
53 | * Hash table of VPIDs (pointer to int64_t) to |
54 | * (struct ctf_proc_debug_infos*); owned by debug_info. | |
b5a8598f AB |
55 | */ |
56 | GHashTable *vpid_to_proc_dbg_info_src; | |
57 | GQuark q_statedump_soinfo; | |
58 | GQuark q_statedump_debug_link; | |
59 | GQuark q_statedump_build_id; | |
60 | GQuark q_statedump_start; | |
61 | GQuark q_dl_open; | |
62 | }; | |
63 | ||
64 | static | |
65 | int debug_info_init(struct debug_info *info) | |
66 | { | |
67 | info->q_statedump_soinfo = g_quark_from_string( | |
68 | "lttng_ust_statedump:soinfo"); | |
69 | info->q_statedump_debug_link = g_quark_from_string( | |
70 | "lttng_ust_statedump:debug_link)"); | |
71 | info->q_statedump_build_id = g_quark_from_string( | |
72 | "lttng_ust_statedump:build_id"); | |
73 | info->q_statedump_start = g_quark_from_string( | |
74 | "lttng_ust_statedump:start"); | |
75 | info->q_dl_open = g_quark_from_string("lttng_ust_dl:dlopen"); | |
76 | ||
77 | return so_info_init(); | |
78 | } | |
79 | ||
80 | static | |
81 | void debug_info_source_destroy(struct debug_info_source *debug_info_src) | |
82 | { | |
83 | if (!debug_info_src) { | |
84 | return; | |
85 | } | |
86 | ||
87 | free(debug_info_src->func); | |
ad2b5b38 JG |
88 | free(debug_info_src->src_path); |
89 | free(debug_info_src->bin_path); | |
b5a8598f AB |
90 | g_free(debug_info_src); |
91 | } | |
92 | ||
93 | static | |
94 | struct debug_info_source *debug_info_source_create_from_so(struct so_info *so, | |
95 | uint64_t ip) | |
96 | { | |
97 | int ret; | |
98 | struct debug_info_source *debug_info_src = NULL; | |
99 | struct source_location *src_loc = NULL; | |
100 | ||
101 | debug_info_src = g_new0(struct debug_info_source, 1); | |
102 | ||
103 | if (!debug_info_src) { | |
104 | goto end; | |
105 | } | |
106 | ||
107 | /* Lookup function name */ | |
108 | ret = so_info_lookup_function_name(so, ip, &debug_info_src->func); | |
109 | if (ret) { | |
110 | goto error; | |
111 | } | |
112 | ||
113 | /* Can't retrieve src_loc from ELF only, skip it */ | |
306dbb33 JG |
114 | if (!so->is_elf_only) { |
115 | /* Lookup source location */ | |
116 | ret = so_info_lookup_source_location(so, ip, &src_loc); | |
117 | if (ret) { | |
118 | goto error; | |
119 | } | |
b5a8598f AB |
120 | } |
121 | ||
122 | if (src_loc) { | |
123 | debug_info_src->line_no = src_loc->line_no; | |
124 | ||
125 | if (src_loc->filename) { | |
ad2b5b38 JG |
126 | debug_info_src->src_path = strdup(src_loc->filename); |
127 | if (!debug_info_src->src_path) { | |
b5a8598f AB |
128 | goto error; |
129 | } | |
458af89d | 130 | |
ad2b5b38 | 131 | debug_info_src->short_src_path = get_filename_from_path( |
458af89d JG |
132 | src_loc->filename); |
133 | ||
b5a8598f AB |
134 | } |
135 | ||
136 | source_location_destroy(src_loc); | |
137 | } | |
138 | ||
ad2b5b38 JG |
139 | if (so->elf_path) { |
140 | debug_info_src->bin_path = strdup(so->elf_path); | |
141 | if (!debug_info_src->bin_path) { | |
142 | goto error; | |
143 | } | |
144 | ||
145 | debug_info_src->short_bin_path = get_filename_from_path( | |
146 | debug_info_src->bin_path); | |
147 | } | |
148 | ||
b5a8598f AB |
149 | end: |
150 | return debug_info_src; | |
151 | ||
152 | error: | |
153 | debug_info_source_destroy(debug_info_src); | |
154 | return NULL; | |
155 | } | |
156 | ||
157 | static | |
158 | void proc_debug_info_sources_destroy( | |
159 | struct proc_debug_info_sources *proc_dbg_info_src) | |
160 | { | |
161 | if (!proc_dbg_info_src) { | |
162 | return; | |
163 | } | |
164 | ||
165 | if (proc_dbg_info_src->baddr_to_so_info) { | |
166 | g_hash_table_destroy(proc_dbg_info_src->baddr_to_so_info); | |
167 | } | |
168 | ||
169 | if (proc_dbg_info_src->ip_to_debug_info_src) { | |
170 | g_hash_table_destroy(proc_dbg_info_src->ip_to_debug_info_src); | |
171 | } | |
172 | ||
173 | g_free(proc_dbg_info_src); | |
174 | } | |
175 | ||
176 | static | |
177 | struct proc_debug_info_sources *proc_debug_info_sources_create(void) | |
178 | { | |
179 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; | |
180 | ||
181 | proc_dbg_info_src = g_new0(struct proc_debug_info_sources, 1); | |
182 | if (!proc_dbg_info_src) { | |
183 | goto end; | |
184 | } | |
185 | ||
186 | proc_dbg_info_src->baddr_to_so_info = g_hash_table_new_full( | |
71235b6d JG |
187 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, |
188 | (GDestroyNotify) so_info_destroy); | |
b5a8598f AB |
189 | if (!proc_dbg_info_src->baddr_to_so_info) { |
190 | goto error; | |
191 | } | |
192 | ||
193 | proc_dbg_info_src->ip_to_debug_info_src = g_hash_table_new_full( | |
71235b6d | 194 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, |
b5a8598f AB |
195 | (GDestroyNotify) debug_info_source_destroy); |
196 | if (!proc_dbg_info_src->ip_to_debug_info_src) { | |
197 | goto error; | |
198 | } | |
199 | ||
200 | end: | |
201 | return proc_dbg_info_src; | |
202 | ||
203 | error: | |
204 | proc_debug_info_sources_destroy(proc_dbg_info_src); | |
205 | return NULL; | |
206 | } | |
207 | ||
208 | static | |
209 | struct proc_debug_info_sources *proc_debug_info_sources_ht_get_entry( | |
210 | GHashTable *ht, int64_t vpid) | |
211 | { | |
71235b6d | 212 | gpointer key = g_new0(int64_t, 1); |
b5a8598f AB |
213 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; |
214 | ||
71235b6d JG |
215 | if (!key) { |
216 | goto end; | |
217 | } | |
218 | ||
219 | *((int64_t *) key) = vpid; | |
220 | ||
b5a8598f AB |
221 | /* Exists? Return it */ |
222 | proc_dbg_info_src = g_hash_table_lookup(ht, key); | |
223 | if (proc_dbg_info_src) { | |
224 | goto end; | |
225 | } | |
226 | ||
227 | /* Otherwise, create and return it */ | |
228 | proc_dbg_info_src = proc_debug_info_sources_create(); | |
229 | if (!proc_dbg_info_src) { | |
230 | goto end; | |
231 | } | |
232 | ||
233 | g_hash_table_insert(ht, key, proc_dbg_info_src); | |
71235b6d JG |
234 | /* Ownership passed to ht */ |
235 | key = NULL; | |
b5a8598f | 236 | end: |
71235b6d | 237 | g_free(key); |
b5a8598f AB |
238 | return proc_dbg_info_src; |
239 | } | |
240 | ||
241 | static | |
242 | struct debug_info_source *proc_debug_info_sources_get_entry( | |
243 | struct proc_debug_info_sources *proc_dbg_info_src, uint64_t ip) | |
244 | { | |
245 | struct debug_info_source *debug_info_src = NULL; | |
71235b6d | 246 | gpointer key = g_new0(uint64_t, 1); |
b5a8598f AB |
247 | GHashTableIter iter; |
248 | gpointer baddr, value; | |
249 | ||
71235b6d JG |
250 | if (!key) { |
251 | goto end; | |
252 | } | |
253 | ||
254 | *((uint64_t *) key) = ip; | |
255 | ||
b5a8598f AB |
256 | /* Look in IP to debug infos hash table first. */ |
257 | debug_info_src = g_hash_table_lookup( | |
258 | proc_dbg_info_src->ip_to_debug_info_src, | |
71235b6d | 259 | key); |
b5a8598f AB |
260 | if (debug_info_src) { |
261 | goto end; | |
262 | } | |
263 | ||
264 | /* Check in all so_infos. */ | |
265 | g_hash_table_iter_init(&iter, proc_dbg_info_src->baddr_to_so_info); | |
266 | ||
267 | while (g_hash_table_iter_next(&iter, &baddr, &value)) | |
268 | { | |
269 | struct so_info *so = value; | |
270 | ||
271 | if (!so_info_has_address(value, ip)) { | |
272 | continue; | |
273 | } | |
274 | ||
71235b6d JG |
275 | /* |
276 | * Found; add it to cache. | |
277 | * | |
278 | * FIXME: this should be bounded in size (and implement | |
279 | * a caching policy), and entries should be prunned when | |
280 | * libraries are unmapped. | |
281 | */ | |
b5a8598f AB |
282 | debug_info_src = debug_info_source_create_from_so(so, ip); |
283 | if (debug_info_src) { | |
284 | g_hash_table_insert( | |
285 | proc_dbg_info_src->ip_to_debug_info_src, | |
71235b6d JG |
286 | key, debug_info_src); |
287 | /* Ownership passed to ht. */ | |
288 | key = NULL; | |
b5a8598f AB |
289 | } |
290 | break; | |
291 | } | |
292 | ||
293 | end: | |
71235b6d | 294 | free(key); |
b5a8598f AB |
295 | return debug_info_src; |
296 | } | |
297 | ||
298 | BT_HIDDEN | |
299 | struct debug_info_source *debug_info_query(struct debug_info *debug_info, | |
300 | int64_t vpid, uint64_t ip) | |
301 | { | |
302 | struct debug_info_source *dbg_info_src = NULL; | |
303 | struct proc_debug_info_sources *proc_dbg_info_src; | |
304 | ||
305 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
306 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
307 | if (!proc_dbg_info_src) { | |
308 | goto end; | |
309 | } | |
310 | ||
311 | dbg_info_src = proc_debug_info_sources_get_entry( | |
312 | proc_dbg_info_src, ip); | |
313 | if (!dbg_info_src) { | |
314 | goto end; | |
315 | } | |
316 | ||
317 | end: | |
318 | return dbg_info_src; | |
319 | } | |
320 | ||
321 | BT_HIDDEN | |
322 | struct debug_info *debug_info_create(void) | |
323 | { | |
324 | int ret; | |
325 | struct debug_info *debug_info; | |
326 | ||
327 | debug_info = g_new0(struct debug_info, 1); | |
328 | if (!debug_info) { | |
329 | goto end; | |
330 | } | |
331 | ||
71235b6d JG |
332 | debug_info->vpid_to_proc_dbg_info_src = g_hash_table_new_full( |
333 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, | |
b5a8598f AB |
334 | (GDestroyNotify) proc_debug_info_sources_destroy); |
335 | if (!debug_info->vpid_to_proc_dbg_info_src) { | |
336 | goto error; | |
337 | } | |
338 | ||
339 | ret = debug_info_init(debug_info); | |
340 | if (ret) { | |
341 | goto error; | |
342 | } | |
343 | ||
344 | end: | |
345 | return debug_info; | |
346 | error: | |
347 | g_free(debug_info); | |
348 | return NULL; | |
349 | } | |
350 | ||
351 | BT_HIDDEN | |
352 | void debug_info_destroy(struct debug_info *debug_info) | |
353 | { | |
354 | if (!debug_info) { | |
355 | goto end; | |
356 | } | |
357 | ||
358 | if (debug_info->vpid_to_proc_dbg_info_src) { | |
359 | g_hash_table_destroy(debug_info->vpid_to_proc_dbg_info_src); | |
360 | } | |
361 | ||
362 | g_free(debug_info); | |
363 | end: | |
364 | return; | |
365 | } | |
366 | ||
367 | static | |
368 | void handle_statedump_build_id_event(struct debug_info *debug_info, | |
369 | struct ctf_event_definition *event_def) | |
370 | { | |
371 | struct proc_debug_info_sources *proc_dbg_info_src; | |
372 | struct bt_definition *event_fields_def = NULL; | |
373 | struct bt_definition *sec_def = NULL; | |
374 | struct bt_definition *baddr_def = NULL; | |
375 | struct bt_definition *vpid_def = NULL; | |
376 | struct bt_definition *build_id_def = NULL; | |
377 | struct definition_sequence *build_id_seq; | |
378 | struct so_info *so = NULL; | |
379 | int i; | |
380 | int64_t vpid; | |
381 | uint64_t baddr; | |
382 | uint8_t *build_id = NULL; | |
383 | uint64_t build_id_len; | |
384 | ||
385 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
386 | sec_def = (struct bt_definition *) | |
387 | event_def->stream->stream_event_context; | |
388 | ||
389 | if (!event_fields_def || !sec_def) { | |
390 | goto end; | |
391 | } | |
392 | ||
393 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
394 | if (!baddr_def) { | |
395 | goto end; | |
396 | } | |
397 | ||
398 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
399 | if (!vpid_def) { | |
400 | goto end; | |
401 | } | |
402 | ||
403 | build_id_def = bt_lookup_definition(event_fields_def, "_build_id"); | |
404 | if (!build_id_def) { | |
405 | goto end; | |
406 | } | |
407 | ||
408 | if (baddr_def->declaration->id != CTF_TYPE_INTEGER) { | |
409 | goto end; | |
410 | } | |
411 | ||
412 | if (vpid_def->declaration->id != CTF_TYPE_INTEGER) { | |
413 | goto end; | |
414 | } | |
415 | ||
416 | if (build_id_def->declaration->id != CTF_TYPE_SEQUENCE) { | |
417 | goto end; | |
418 | } | |
419 | ||
420 | baddr = bt_get_unsigned_int(baddr_def); | |
421 | vpid = bt_get_signed_int(vpid_def); | |
422 | build_id_seq = container_of(build_id_def, | |
423 | struct definition_sequence, p); | |
424 | build_id_len = build_id_seq->length->value._unsigned; | |
425 | ||
426 | build_id = g_malloc(build_id_len); | |
427 | if (!build_id) { | |
428 | goto end; | |
429 | } | |
430 | ||
431 | for (i = 0; i < build_id_len; ++i) { | |
432 | struct bt_definition **field; | |
433 | ||
434 | field = (struct bt_definition **) &g_ptr_array_index( | |
435 | build_id_seq->elems, i); | |
436 | build_id[i] = bt_get_unsigned_int(*field); | |
437 | } | |
438 | ||
439 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
440 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
441 | if (!proc_dbg_info_src) { | |
442 | goto end; | |
443 | } | |
444 | ||
445 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, | |
446 | (gpointer) &baddr); | |
447 | if (!so) { | |
448 | /* | |
449 | * The build_id event comes after the so has been | |
450 | * created. If it isn't found, just ignore this event. | |
451 | */ | |
452 | goto end; | |
453 | } | |
454 | ||
455 | so_info_set_build_id(so, build_id, build_id_len); | |
456 | ||
457 | end: | |
458 | free(build_id); | |
459 | return; | |
460 | } | |
461 | ||
462 | static | |
463 | void handle_statedump_debug_link_event(struct debug_info *debug_info, | |
464 | struct ctf_event_definition *event_def) | |
465 | { | |
466 | struct proc_debug_info_sources *proc_dbg_info_src; | |
467 | struct bt_definition *event_fields_def = NULL; | |
468 | struct bt_definition *sec_def = NULL; | |
469 | struct bt_definition *baddr_def = NULL; | |
470 | struct bt_definition *vpid_def = NULL; | |
471 | struct bt_definition *filename_def = NULL; | |
472 | struct bt_definition *crc32_def = NULL; | |
473 | struct so_info *so = NULL; | |
474 | int64_t vpid; | |
475 | uint64_t baddr; | |
476 | char *filename = NULL; | |
477 | uint32_t crc32; | |
478 | ||
479 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
480 | sec_def = (struct bt_definition *) | |
481 | event_def->stream->stream_event_context; | |
482 | ||
483 | if (!event_fields_def || !sec_def) { | |
484 | goto end; | |
485 | } | |
486 | ||
487 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
488 | if (!baddr_def) { | |
489 | goto end; | |
490 | } | |
491 | ||
492 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
493 | if (!vpid_def) { | |
494 | goto end; | |
495 | } | |
496 | ||
497 | filename_def = bt_lookup_definition(event_fields_def, "_filename"); | |
498 | if (!filename_def) { | |
499 | goto end; | |
500 | } | |
501 | ||
502 | crc32_def = bt_lookup_definition(event_fields_def, "_crc32"); | |
503 | if (!crc32_def) { | |
504 | goto end; | |
505 | } | |
506 | ||
507 | if (baddr_def->declaration->id != CTF_TYPE_INTEGER) { | |
508 | goto end; | |
509 | } | |
510 | ||
511 | if (vpid_def->declaration->id != CTF_TYPE_INTEGER) { | |
512 | goto end; | |
513 | } | |
514 | ||
515 | if (filename_def->declaration->id != CTF_TYPE_STRING) { | |
516 | goto end; | |
517 | } | |
518 | ||
519 | if (crc32_def->declaration->id != CTF_TYPE_INTEGER) { | |
520 | goto end; | |
521 | } | |
522 | ||
523 | baddr = bt_get_unsigned_int(baddr_def); | |
524 | vpid = bt_get_signed_int(vpid_def); | |
525 | ||
526 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
527 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
528 | if (!proc_dbg_info_src) { | |
529 | goto end; | |
530 | } | |
531 | ||
532 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, | |
533 | (gpointer) &baddr); | |
534 | if (!so) { | |
535 | /* | |
536 | * The debug_link event comes after the so has been | |
537 | * created. If it isn't found, just ignore this event. | |
538 | */ | |
539 | goto end; | |
540 | } | |
541 | ||
542 | filename = bt_get_string(filename_def); | |
543 | crc32 = bt_get_unsigned_int(crc32_def); | |
544 | ||
545 | so_info_set_debug_link(so, filename, crc32); | |
546 | ||
547 | end: | |
548 | return; | |
549 | } | |
550 | ||
551 | static | |
552 | void handle_statedump_soinfo_event(struct debug_info *debug_info, | |
553 | struct ctf_event_definition *event_def) | |
554 | { | |
555 | struct bt_definition *baddr_def = NULL; | |
556 | struct bt_definition *memsz_def = NULL; | |
557 | struct bt_definition *sopath_def = NULL; | |
558 | struct bt_definition *vpid_def = NULL; | |
559 | struct bt_definition *event_fields_def = NULL; | |
560 | struct bt_definition *sec_def = NULL; | |
561 | struct proc_debug_info_sources *proc_dbg_info_src; | |
562 | struct so_info *so; | |
563 | uint64_t baddr, memsz; | |
564 | int64_t vpid; | |
565 | const char *sopath; | |
71235b6d | 566 | gpointer key = NULL; |
b5a8598f AB |
567 | |
568 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
569 | sec_def = (struct bt_definition *) | |
570 | event_def->stream->stream_event_context; | |
571 | ||
572 | if (!event_fields_def || !sec_def) { | |
573 | goto end; | |
574 | } | |
575 | ||
576 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
577 | if (!baddr_def) { | |
578 | goto end; | |
579 | } | |
580 | ||
581 | memsz_def = bt_lookup_definition(event_fields_def, "_memsz"); | |
582 | if (!memsz_def) { | |
583 | goto end; | |
584 | } | |
585 | ||
586 | sopath_def = bt_lookup_definition(event_fields_def, "_sopath"); | |
587 | if (!sopath_def) { | |
588 | goto end; | |
589 | } | |
590 | ||
591 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
592 | if (!vpid_def) { | |
593 | goto end; | |
594 | } | |
595 | ||
596 | if (baddr_def->declaration->id != CTF_TYPE_INTEGER) { | |
597 | goto end; | |
598 | } | |
599 | ||
600 | if (memsz_def->declaration->id != CTF_TYPE_INTEGER) { | |
601 | goto end; | |
602 | } | |
603 | ||
604 | if (sopath_def->declaration->id != CTF_TYPE_STRING) { | |
605 | goto end; | |
606 | } | |
607 | ||
608 | if (vpid_def->declaration->id != CTF_TYPE_INTEGER) { | |
609 | goto end; | |
610 | } | |
611 | ||
612 | baddr = bt_get_unsigned_int(baddr_def); | |
613 | memsz = bt_get_unsigned_int(memsz_def); | |
614 | sopath = bt_get_string(sopath_def); | |
615 | vpid = bt_get_signed_int(vpid_def); | |
616 | ||
617 | if (!sopath) { | |
618 | goto end; | |
619 | } | |
620 | ||
621 | if (memsz == 0) { | |
622 | /* Ignore VDSO. */ | |
623 | goto end; | |
624 | } | |
625 | ||
626 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
627 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
628 | if (!proc_dbg_info_src) { | |
629 | goto end; | |
630 | } | |
631 | ||
71235b6d JG |
632 | key = g_new0(uint64_t, 1); |
633 | if (!key) { | |
634 | goto end; | |
635 | } | |
636 | ||
637 | *((uint64_t *) key) = baddr; | |
638 | ||
b5a8598f | 639 | so = g_hash_table_lookup(proc_dbg_info_src->baddr_to_so_info, |
71235b6d | 640 | key); |
b5a8598f AB |
641 | if (so) { |
642 | goto end; | |
643 | } | |
644 | ||
645 | so = so_info_create(sopath, baddr, memsz); | |
646 | if (!so) { | |
647 | goto end; | |
648 | } | |
649 | ||
650 | g_hash_table_insert(proc_dbg_info_src->baddr_to_so_info, | |
71235b6d JG |
651 | key, so); |
652 | /* Ownership passed to ht. */ | |
653 | key = NULL; | |
b5a8598f AB |
654 | |
655 | end: | |
71235b6d | 656 | g_free(key); |
b5a8598f AB |
657 | return; |
658 | } | |
659 | ||
660 | static | |
661 | void handle_statedump_start(struct debug_info *debug_info, | |
662 | struct ctf_event_definition *event_def) | |
663 | { | |
664 | struct bt_definition *vpid_def = NULL; | |
665 | struct bt_definition *sec_def = NULL; | |
666 | struct proc_debug_info_sources *proc_dbg_info_src; | |
667 | int64_t vpid; | |
668 | ||
669 | sec_def = (struct bt_definition *) | |
670 | event_def->stream->stream_event_context; | |
671 | if (!sec_def) { | |
672 | goto end; | |
673 | } | |
674 | ||
675 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
676 | if (!vpid_def) { | |
677 | goto end; | |
678 | } | |
679 | ||
680 | vpid = bt_get_signed_int(vpid_def); | |
681 | ||
682 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
683 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
684 | if (!proc_dbg_info_src) { | |
685 | goto end; | |
686 | } | |
687 | ||
688 | g_hash_table_remove_all(proc_dbg_info_src->baddr_to_so_info); | |
689 | g_hash_table_remove_all(proc_dbg_info_src->ip_to_debug_info_src); | |
690 | ||
691 | end: | |
692 | return; | |
693 | } | |
694 | ||
695 | static | |
696 | void register_event_debug_infos(struct debug_info *debug_info, | |
697 | struct ctf_event_definition *event) | |
698 | { | |
699 | struct bt_definition *ip_def, *vpid_def; | |
700 | int64_t vpid; | |
701 | uint64_t ip; | |
702 | struct bt_definition *sec_def; | |
703 | ||
704 | /* Get stream event context definition. */ | |
705 | sec_def = (struct bt_definition *) event->stream->stream_event_context; | |
706 | if (!sec_def) { | |
707 | goto end; | |
708 | } | |
709 | ||
710 | /* Get "ip" and "vpid" definitions. */ | |
711 | vpid_def = bt_lookup_definition((struct bt_definition *) sec_def, | |
712 | "_vpid"); | |
713 | ip_def = bt_lookup_definition((struct bt_definition *) sec_def, "_ip"); | |
714 | ||
715 | if (!vpid_def || !ip_def) { | |
716 | goto end; | |
717 | } | |
718 | ||
719 | vpid = bt_get_signed_int(vpid_def); | |
720 | ip = bt_get_unsigned_int(ip_def); | |
721 | ||
722 | /* Get debug info for this context. */ | |
723 | ((struct definition_integer *) ip_def)->debug_info_src = | |
724 | debug_info_query(debug_info, vpid, ip); | |
725 | ||
726 | end: | |
727 | return; | |
728 | } | |
729 | ||
730 | BT_HIDDEN | |
731 | void debug_info_handle_event(struct debug_info *debug_info, | |
732 | struct ctf_event_definition *event) | |
733 | { | |
734 | struct ctf_event_declaration *event_class; | |
735 | struct ctf_stream_declaration *stream_class; | |
736 | ||
737 | if (!debug_info || !event) { | |
738 | goto end; | |
739 | } | |
740 | ||
741 | stream_class = event->stream->stream_class; | |
742 | event_class = g_ptr_array_index(stream_class->events_by_id, | |
743 | event->stream->event_id); | |
744 | ||
745 | if (event_class->name == debug_info->q_statedump_soinfo || | |
746 | event_class->name == debug_info->q_dl_open) { | |
747 | /* State dump/dlopen() */ | |
748 | handle_statedump_soinfo_event(debug_info, event); | |
749 | } else if (event_class->name == debug_info->q_statedump_start) { | |
750 | /* Start state dump */ | |
751 | handle_statedump_start(debug_info, event); | |
752 | } else if (event_class->name == debug_info->q_statedump_debug_link) { | |
753 | /* Debug link info */ | |
754 | handle_statedump_debug_link_event(debug_info, event); | |
755 | } else if (event_class->name == debug_info->q_statedump_build_id) { | |
756 | /* Build ID info */ | |
757 | handle_statedump_build_id_event(debug_info, event); | |
758 | } else { | |
759 | /* Other events: register debug infos */ | |
760 | register_event_debug_infos(debug_info, event); | |
761 | } | |
762 | ||
763 | end: | |
764 | return; | |
765 | } |