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> | |
d5ddf820 | 33 | #include <babeltrace/bin-info.h> |
ff9ce920 | 34 | #include <babeltrace/babeltrace-internal.h> |
55cd033d | 35 | #include <babeltrace/utils.h> |
c40a57e5 AB |
36 | |
37 | struct proc_debug_info_sources { | |
38 | /* | |
d5ddf820 | 39 | * Hash table: base address (pointer to uint64_t) to bin info; owned by |
c40a57e5 AB |
40 | * proc_debug_info_sources. |
41 | */ | |
d5ddf820 | 42 | GHashTable *baddr_to_bin_info; |
c40a57e5 AB |
43 | |
44 | /* | |
47857613 JG |
45 | * Hash table: IP (pointer to uint64_t) to (struct debug_info_source *); |
46 | * owned by proc_debug_info_sources. | |
c40a57e5 AB |
47 | */ |
48 | GHashTable *ip_to_debug_info_src; | |
49 | }; | |
50 | ||
51 | struct debug_info { | |
52 | /* | |
47857613 JG |
53 | * Hash table of VPIDs (pointer to int64_t) to |
54 | * (struct ctf_proc_debug_infos*); owned by debug_info. | |
c40a57e5 AB |
55 | */ |
56 | GHashTable *vpid_to_proc_dbg_info_src; | |
9c713367 | 57 | GQuark q_statedump_bin_info; |
c40a57e5 AB |
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 | { | |
9c713367 AB |
67 | info->q_statedump_bin_info = g_quark_from_string( |
68 | "lttng_ust_statedump:bin_info"); | |
c40a57e5 AB |
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 | ||
d5ddf820 | 77 | return bin_info_init(); |
c40a57e5 AB |
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); | |
a7a607cf JG |
88 | free(debug_info_src->src_path); |
89 | free(debug_info_src->bin_path); | |
36ae9941 | 90 | free(debug_info_src->bin_loc); |
c40a57e5 AB |
91 | g_free(debug_info_src); |
92 | } | |
93 | ||
94 | static | |
d5ddf820 | 95 | struct debug_info_source *debug_info_source_create_from_bin(struct bin_info *bin, |
c40a57e5 AB |
96 | uint64_t ip) |
97 | { | |
98 | int ret; | |
99 | struct debug_info_source *debug_info_src = NULL; | |
100 | struct source_location *src_loc = NULL; | |
101 | ||
102 | debug_info_src = g_new0(struct debug_info_source, 1); | |
103 | ||
104 | if (!debug_info_src) { | |
105 | goto end; | |
106 | } | |
107 | ||
108 | /* Lookup function name */ | |
d5ddf820 | 109 | ret = bin_info_lookup_function_name(bin, ip, &debug_info_src->func); |
c40a57e5 AB |
110 | if (ret) { |
111 | goto error; | |
112 | } | |
113 | ||
545e1e92 JG |
114 | /* Can't retrieve src_loc from ELF, or could not find binary, skip. */ |
115 | if (!bin->is_elf_only || !debug_info_src->func) { | |
44148130 | 116 | /* Lookup source location */ |
d5ddf820 | 117 | ret = bin_info_lookup_source_location(bin, ip, &src_loc); |
545e1e92 | 118 | printf_verbose("Failed to lookup source location (err: %i)\n", ret); |
c40a57e5 AB |
119 | } |
120 | ||
121 | if (src_loc) { | |
122 | debug_info_src->line_no = src_loc->line_no; | |
123 | ||
124 | if (src_loc->filename) { | |
a7a607cf JG |
125 | debug_info_src->src_path = strdup(src_loc->filename); |
126 | if (!debug_info_src->src_path) { | |
c40a57e5 AB |
127 | goto error; |
128 | } | |
ff9ce920 | 129 | |
a7a607cf | 130 | debug_info_src->short_src_path = get_filename_from_path( |
51a9f65d | 131 | debug_info_src->src_path); |
c40a57e5 AB |
132 | } |
133 | ||
134 | source_location_destroy(src_loc); | |
135 | } | |
136 | ||
d5ddf820 AB |
137 | if (bin->elf_path) { |
138 | debug_info_src->bin_path = strdup(bin->elf_path); | |
a7a607cf JG |
139 | if (!debug_info_src->bin_path) { |
140 | goto error; | |
141 | } | |
142 | ||
143 | debug_info_src->short_bin_path = get_filename_from_path( | |
144 | debug_info_src->bin_path); | |
36ae9941 | 145 | |
d5ddf820 | 146 | ret = bin_info_get_bin_loc(bin, ip, &(debug_info_src->bin_loc)); |
36ae9941 AB |
147 | if (ret) { |
148 | goto error; | |
149 | } | |
a7a607cf JG |
150 | } |
151 | ||
c40a57e5 AB |
152 | end: |
153 | return debug_info_src; | |
154 | ||
155 | error: | |
156 | debug_info_source_destroy(debug_info_src); | |
157 | return NULL; | |
158 | } | |
159 | ||
160 | static | |
161 | void proc_debug_info_sources_destroy( | |
162 | struct proc_debug_info_sources *proc_dbg_info_src) | |
163 | { | |
164 | if (!proc_dbg_info_src) { | |
165 | return; | |
166 | } | |
167 | ||
d5ddf820 AB |
168 | if (proc_dbg_info_src->baddr_to_bin_info) { |
169 | g_hash_table_destroy(proc_dbg_info_src->baddr_to_bin_info); | |
c40a57e5 AB |
170 | } |
171 | ||
172 | if (proc_dbg_info_src->ip_to_debug_info_src) { | |
173 | g_hash_table_destroy(proc_dbg_info_src->ip_to_debug_info_src); | |
174 | } | |
175 | ||
176 | g_free(proc_dbg_info_src); | |
177 | } | |
178 | ||
179 | static | |
180 | struct proc_debug_info_sources *proc_debug_info_sources_create(void) | |
181 | { | |
182 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; | |
183 | ||
184 | proc_dbg_info_src = g_new0(struct proc_debug_info_sources, 1); | |
185 | if (!proc_dbg_info_src) { | |
186 | goto end; | |
187 | } | |
188 | ||
d5ddf820 | 189 | proc_dbg_info_src->baddr_to_bin_info = g_hash_table_new_full( |
47857613 | 190 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, |
d5ddf820 AB |
191 | (GDestroyNotify) bin_info_destroy); |
192 | if (!proc_dbg_info_src->baddr_to_bin_info) { | |
c40a57e5 AB |
193 | goto error; |
194 | } | |
195 | ||
196 | proc_dbg_info_src->ip_to_debug_info_src = g_hash_table_new_full( | |
47857613 | 197 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, |
c40a57e5 AB |
198 | (GDestroyNotify) debug_info_source_destroy); |
199 | if (!proc_dbg_info_src->ip_to_debug_info_src) { | |
200 | goto error; | |
201 | } | |
202 | ||
203 | end: | |
204 | return proc_dbg_info_src; | |
205 | ||
206 | error: | |
207 | proc_debug_info_sources_destroy(proc_dbg_info_src); | |
208 | return NULL; | |
209 | } | |
210 | ||
211 | static | |
212 | struct proc_debug_info_sources *proc_debug_info_sources_ht_get_entry( | |
213 | GHashTable *ht, int64_t vpid) | |
214 | { | |
47857613 | 215 | gpointer key = g_new0(int64_t, 1); |
c40a57e5 AB |
216 | struct proc_debug_info_sources *proc_dbg_info_src = NULL; |
217 | ||
47857613 JG |
218 | if (!key) { |
219 | goto end; | |
220 | } | |
221 | ||
222 | *((int64_t *) key) = vpid; | |
223 | ||
c40a57e5 AB |
224 | /* Exists? Return it */ |
225 | proc_dbg_info_src = g_hash_table_lookup(ht, key); | |
226 | if (proc_dbg_info_src) { | |
227 | goto end; | |
228 | } | |
229 | ||
230 | /* Otherwise, create and return it */ | |
231 | proc_dbg_info_src = proc_debug_info_sources_create(); | |
232 | if (!proc_dbg_info_src) { | |
233 | goto end; | |
234 | } | |
235 | ||
236 | g_hash_table_insert(ht, key, proc_dbg_info_src); | |
47857613 JG |
237 | /* Ownership passed to ht */ |
238 | key = NULL; | |
c40a57e5 | 239 | end: |
47857613 | 240 | g_free(key); |
c40a57e5 AB |
241 | return proc_dbg_info_src; |
242 | } | |
243 | ||
244 | static | |
245 | struct debug_info_source *proc_debug_info_sources_get_entry( | |
246 | struct proc_debug_info_sources *proc_dbg_info_src, uint64_t ip) | |
247 | { | |
248 | struct debug_info_source *debug_info_src = NULL; | |
47857613 | 249 | gpointer key = g_new0(uint64_t, 1); |
c40a57e5 AB |
250 | GHashTableIter iter; |
251 | gpointer baddr, value; | |
252 | ||
47857613 JG |
253 | if (!key) { |
254 | goto end; | |
255 | } | |
256 | ||
257 | *((uint64_t *) key) = ip; | |
258 | ||
c40a57e5 AB |
259 | /* Look in IP to debug infos hash table first. */ |
260 | debug_info_src = g_hash_table_lookup( | |
261 | proc_dbg_info_src->ip_to_debug_info_src, | |
47857613 | 262 | key); |
c40a57e5 AB |
263 | if (debug_info_src) { |
264 | goto end; | |
265 | } | |
266 | ||
d5ddf820 AB |
267 | /* Check in all bin_infos. */ |
268 | g_hash_table_iter_init(&iter, proc_dbg_info_src->baddr_to_bin_info); | |
c40a57e5 AB |
269 | |
270 | while (g_hash_table_iter_next(&iter, &baddr, &value)) | |
271 | { | |
d5ddf820 | 272 | struct bin_info *bin = value; |
c40a57e5 | 273 | |
d5ddf820 | 274 | if (!bin_info_has_address(value, ip)) { |
c40a57e5 AB |
275 | continue; |
276 | } | |
277 | ||
47857613 JG |
278 | /* |
279 | * Found; add it to cache. | |
280 | * | |
281 | * FIXME: this should be bounded in size (and implement | |
282 | * a caching policy), and entries should be prunned when | |
283 | * libraries are unmapped. | |
284 | */ | |
d5ddf820 | 285 | debug_info_src = debug_info_source_create_from_bin(bin, ip); |
c40a57e5 AB |
286 | if (debug_info_src) { |
287 | g_hash_table_insert( | |
288 | proc_dbg_info_src->ip_to_debug_info_src, | |
47857613 JG |
289 | key, debug_info_src); |
290 | /* Ownership passed to ht. */ | |
291 | key = NULL; | |
c40a57e5 AB |
292 | } |
293 | break; | |
294 | } | |
295 | ||
296 | end: | |
47857613 | 297 | free(key); |
c40a57e5 AB |
298 | return debug_info_src; |
299 | } | |
300 | ||
301 | BT_HIDDEN | |
302 | struct debug_info_source *debug_info_query(struct debug_info *debug_info, | |
303 | int64_t vpid, uint64_t ip) | |
304 | { | |
305 | struct debug_info_source *dbg_info_src = NULL; | |
306 | struct proc_debug_info_sources *proc_dbg_info_src; | |
307 | ||
308 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
309 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
310 | if (!proc_dbg_info_src) { | |
311 | goto end; | |
312 | } | |
313 | ||
314 | dbg_info_src = proc_debug_info_sources_get_entry( | |
315 | proc_dbg_info_src, ip); | |
316 | if (!dbg_info_src) { | |
317 | goto end; | |
318 | } | |
319 | ||
320 | end: | |
321 | return dbg_info_src; | |
322 | } | |
323 | ||
324 | BT_HIDDEN | |
325 | struct debug_info *debug_info_create(void) | |
326 | { | |
327 | int ret; | |
328 | struct debug_info *debug_info; | |
329 | ||
330 | debug_info = g_new0(struct debug_info, 1); | |
331 | if (!debug_info) { | |
332 | goto end; | |
333 | } | |
334 | ||
47857613 JG |
335 | debug_info->vpid_to_proc_dbg_info_src = g_hash_table_new_full( |
336 | g_int64_hash, g_int64_equal, (GDestroyNotify) g_free, | |
c40a57e5 AB |
337 | (GDestroyNotify) proc_debug_info_sources_destroy); |
338 | if (!debug_info->vpid_to_proc_dbg_info_src) { | |
339 | goto error; | |
340 | } | |
341 | ||
342 | ret = debug_info_init(debug_info); | |
343 | if (ret) { | |
344 | goto error; | |
345 | } | |
346 | ||
347 | end: | |
348 | return debug_info; | |
349 | error: | |
350 | g_free(debug_info); | |
351 | return NULL; | |
352 | } | |
353 | ||
354 | BT_HIDDEN | |
355 | void debug_info_destroy(struct debug_info *debug_info) | |
356 | { | |
357 | if (!debug_info) { | |
358 | goto end; | |
359 | } | |
360 | ||
361 | if (debug_info->vpid_to_proc_dbg_info_src) { | |
362 | g_hash_table_destroy(debug_info->vpid_to_proc_dbg_info_src); | |
363 | } | |
364 | ||
365 | g_free(debug_info); | |
366 | end: | |
367 | return; | |
368 | } | |
369 | ||
370 | static | |
371 | void handle_statedump_build_id_event(struct debug_info *debug_info, | |
372 | struct ctf_event_definition *event_def) | |
373 | { | |
374 | struct proc_debug_info_sources *proc_dbg_info_src; | |
375 | struct bt_definition *event_fields_def = NULL; | |
376 | struct bt_definition *sec_def = NULL; | |
377 | struct bt_definition *baddr_def = NULL; | |
378 | struct bt_definition *vpid_def = NULL; | |
379 | struct bt_definition *build_id_def = NULL; | |
380 | struct definition_sequence *build_id_seq; | |
d5ddf820 | 381 | struct bin_info *bin = NULL; |
c40a57e5 AB |
382 | int i; |
383 | int64_t vpid; | |
384 | uint64_t baddr; | |
385 | uint8_t *build_id = NULL; | |
386 | uint64_t build_id_len; | |
387 | ||
388 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
389 | sec_def = (struct bt_definition *) | |
390 | event_def->stream->stream_event_context; | |
391 | ||
392 | if (!event_fields_def || !sec_def) { | |
393 | goto end; | |
394 | } | |
395 | ||
396 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
397 | if (!baddr_def) { | |
398 | goto end; | |
399 | } | |
400 | ||
401 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
402 | if (!vpid_def) { | |
403 | goto end; | |
404 | } | |
405 | ||
406 | build_id_def = bt_lookup_definition(event_fields_def, "_build_id"); | |
407 | if (!build_id_def) { | |
408 | goto end; | |
409 | } | |
410 | ||
411 | if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
412 | goto end; | |
413 | } | |
414 | ||
415 | if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
416 | goto end; | |
417 | } | |
418 | ||
419 | if (build_id_def->declaration->id != BT_CTF_TYPE_ID_SEQUENCE) { | |
420 | goto end; | |
421 | } | |
422 | ||
423 | baddr = bt_get_unsigned_int(baddr_def); | |
424 | vpid = bt_get_signed_int(vpid_def); | |
425 | build_id_seq = container_of(build_id_def, | |
426 | struct definition_sequence, p); | |
427 | build_id_len = build_id_seq->length->value._unsigned; | |
428 | ||
429 | build_id = g_malloc(build_id_len); | |
430 | if (!build_id) { | |
431 | goto end; | |
432 | } | |
433 | ||
434 | for (i = 0; i < build_id_len; ++i) { | |
435 | struct bt_definition **field; | |
436 | ||
437 | field = (struct bt_definition **) &g_ptr_array_index( | |
438 | build_id_seq->elems, i); | |
439 | build_id[i] = bt_get_unsigned_int(*field); | |
440 | } | |
441 | ||
442 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
443 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
444 | if (!proc_dbg_info_src) { | |
445 | goto end; | |
446 | } | |
447 | ||
d5ddf820 | 448 | bin = g_hash_table_lookup(proc_dbg_info_src->baddr_to_bin_info, |
c40a57e5 | 449 | (gpointer) &baddr); |
d5ddf820 | 450 | if (!bin) { |
c40a57e5 | 451 | /* |
d5ddf820 | 452 | * The build_id event comes after the bin has been |
c40a57e5 AB |
453 | * created. If it isn't found, just ignore this event. |
454 | */ | |
455 | goto end; | |
456 | } | |
457 | ||
d5ddf820 | 458 | bin_info_set_build_id(bin, build_id, build_id_len); |
c40a57e5 AB |
459 | |
460 | end: | |
461 | free(build_id); | |
462 | return; | |
463 | } | |
464 | ||
465 | static | |
466 | void handle_statedump_debug_link_event(struct debug_info *debug_info, | |
467 | struct ctf_event_definition *event_def) | |
468 | { | |
469 | struct proc_debug_info_sources *proc_dbg_info_src; | |
470 | struct bt_definition *event_fields_def = NULL; | |
471 | struct bt_definition *sec_def = NULL; | |
472 | struct bt_definition *baddr_def = NULL; | |
473 | struct bt_definition *vpid_def = NULL; | |
474 | struct bt_definition *filename_def = NULL; | |
475 | struct bt_definition *crc32_def = NULL; | |
d5ddf820 | 476 | struct bin_info *bin = NULL; |
c40a57e5 AB |
477 | int64_t vpid; |
478 | uint64_t baddr; | |
479 | char *filename = NULL; | |
480 | uint32_t crc32; | |
481 | ||
482 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
483 | sec_def = (struct bt_definition *) | |
484 | event_def->stream->stream_event_context; | |
485 | ||
486 | if (!event_fields_def || !sec_def) { | |
487 | goto end; | |
488 | } | |
489 | ||
490 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
491 | if (!baddr_def) { | |
492 | goto end; | |
493 | } | |
494 | ||
495 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
496 | if (!vpid_def) { | |
497 | goto end; | |
498 | } | |
499 | ||
500 | filename_def = bt_lookup_definition(event_fields_def, "_filename"); | |
501 | if (!filename_def) { | |
502 | goto end; | |
503 | } | |
504 | ||
505 | crc32_def = bt_lookup_definition(event_fields_def, "_crc32"); | |
506 | if (!crc32_def) { | |
507 | goto end; | |
508 | } | |
509 | ||
510 | if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
511 | goto end; | |
512 | } | |
513 | ||
514 | if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
515 | goto end; | |
516 | } | |
517 | ||
518 | if (filename_def->declaration->id != BT_CTF_TYPE_ID_STRING) { | |
519 | goto end; | |
520 | } | |
521 | ||
522 | if (crc32_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
523 | goto end; | |
524 | } | |
525 | ||
526 | baddr = bt_get_unsigned_int(baddr_def); | |
527 | vpid = bt_get_signed_int(vpid_def); | |
528 | ||
529 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
530 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
531 | if (!proc_dbg_info_src) { | |
532 | goto end; | |
533 | } | |
534 | ||
d5ddf820 | 535 | bin = g_hash_table_lookup(proc_dbg_info_src->baddr_to_bin_info, |
c40a57e5 | 536 | (gpointer) &baddr); |
d5ddf820 | 537 | if (!bin) { |
c40a57e5 | 538 | /* |
d5ddf820 | 539 | * The debug_link event comes after the bin has been |
c40a57e5 AB |
540 | * created. If it isn't found, just ignore this event. |
541 | */ | |
542 | goto end; | |
543 | } | |
544 | ||
545 | filename = bt_get_string(filename_def); | |
546 | crc32 = bt_get_unsigned_int(crc32_def); | |
547 | ||
d5ddf820 | 548 | bin_info_set_debug_link(bin, filename, crc32); |
c40a57e5 AB |
549 | |
550 | end: | |
551 | return; | |
552 | } | |
553 | ||
554 | static | |
9f2b13ca AB |
555 | void handle_bin_info_event(struct debug_info *debug_info, |
556 | struct ctf_event_definition *event_def, bool has_pic_field) | |
c40a57e5 AB |
557 | { |
558 | struct bt_definition *baddr_def = NULL; | |
559 | struct bt_definition *memsz_def = NULL; | |
9c713367 | 560 | struct bt_definition *path_def = NULL; |
9f2b13ca | 561 | struct bt_definition *is_pic_def = NULL; |
c40a57e5 AB |
562 | struct bt_definition *vpid_def = NULL; |
563 | struct bt_definition *event_fields_def = NULL; | |
564 | struct bt_definition *sec_def = NULL; | |
565 | struct proc_debug_info_sources *proc_dbg_info_src; | |
d5ddf820 | 566 | struct bin_info *bin; |
c40a57e5 AB |
567 | uint64_t baddr, memsz; |
568 | int64_t vpid; | |
9c713367 | 569 | const char *path; |
47857613 | 570 | gpointer key = NULL; |
9f2b13ca | 571 | bool is_pic; |
c40a57e5 AB |
572 | |
573 | event_fields_def = (struct bt_definition *) event_def->event_fields; | |
574 | sec_def = (struct bt_definition *) | |
575 | event_def->stream->stream_event_context; | |
576 | ||
577 | if (!event_fields_def || !sec_def) { | |
578 | goto end; | |
579 | } | |
580 | ||
581 | baddr_def = bt_lookup_definition(event_fields_def, "_baddr"); | |
582 | if (!baddr_def) { | |
583 | goto end; | |
584 | } | |
585 | ||
586 | memsz_def = bt_lookup_definition(event_fields_def, "_memsz"); | |
587 | if (!memsz_def) { | |
588 | goto end; | |
589 | } | |
590 | ||
9c713367 AB |
591 | path_def = bt_lookup_definition(event_fields_def, "_path"); |
592 | if (!path_def) { | |
c40a57e5 AB |
593 | goto end; |
594 | } | |
595 | ||
9f2b13ca AB |
596 | if (has_pic_field) { |
597 | is_pic_def = bt_lookup_definition(event_fields_def, "_is_pic"); | |
598 | if (!is_pic_def) { | |
599 | goto end; | |
600 | } | |
601 | ||
602 | if (is_pic_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
603 | goto end; | |
604 | } | |
605 | ||
606 | is_pic = (bt_get_unsigned_int(is_pic_def) == 1); | |
607 | } else { | |
608 | /* | |
609 | * dlopen has no is_pic field, because the shared | |
610 | * object is always PIC. | |
611 | */ | |
612 | is_pic = true; | |
613 | } | |
614 | ||
c40a57e5 AB |
615 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); |
616 | if (!vpid_def) { | |
617 | goto end; | |
618 | } | |
619 | ||
620 | if (baddr_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
621 | goto end; | |
622 | } | |
623 | ||
624 | if (memsz_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
625 | goto end; | |
626 | } | |
627 | ||
9c713367 | 628 | if (path_def->declaration->id != BT_CTF_TYPE_ID_STRING) { |
c40a57e5 AB |
629 | goto end; |
630 | } | |
631 | ||
632 | if (vpid_def->declaration->id != BT_CTF_TYPE_ID_INTEGER) { | |
633 | goto end; | |
634 | } | |
635 | ||
636 | baddr = bt_get_unsigned_int(baddr_def); | |
637 | memsz = bt_get_unsigned_int(memsz_def); | |
9c713367 | 638 | path = bt_get_string(path_def); |
c40a57e5 AB |
639 | vpid = bt_get_signed_int(vpid_def); |
640 | ||
9c713367 | 641 | if (!path) { |
c40a57e5 AB |
642 | goto end; |
643 | } | |
644 | ||
645 | if (memsz == 0) { | |
646 | /* Ignore VDSO. */ | |
647 | goto end; | |
648 | } | |
649 | ||
650 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
651 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
652 | if (!proc_dbg_info_src) { | |
653 | goto end; | |
654 | } | |
655 | ||
47857613 JG |
656 | key = g_new0(uint64_t, 1); |
657 | if (!key) { | |
658 | goto end; | |
659 | } | |
660 | ||
661 | *((uint64_t *) key) = baddr; | |
662 | ||
d5ddf820 | 663 | bin = g_hash_table_lookup(proc_dbg_info_src->baddr_to_bin_info, |
47857613 | 664 | key); |
d5ddf820 | 665 | if (bin) { |
c40a57e5 AB |
666 | goto end; |
667 | } | |
668 | ||
d5ddf820 AB |
669 | bin = bin_info_create(path, baddr, memsz, is_pic); |
670 | if (!bin) { | |
c40a57e5 AB |
671 | goto end; |
672 | } | |
673 | ||
d5ddf820 AB |
674 | g_hash_table_insert(proc_dbg_info_src->baddr_to_bin_info, |
675 | key, bin); | |
47857613 JG |
676 | /* Ownership passed to ht. */ |
677 | key = NULL; | |
c40a57e5 AB |
678 | |
679 | end: | |
47857613 | 680 | g_free(key); |
c40a57e5 AB |
681 | return; |
682 | } | |
683 | ||
9f2b13ca | 684 | static inline |
9c713367 | 685 | void handle_statedump_bin_info_event(struct debug_info *debug_info, |
9f2b13ca AB |
686 | struct ctf_event_definition *event_def) |
687 | { | |
688 | handle_bin_info_event(debug_info, event_def, true); | |
689 | } | |
690 | ||
691 | static inline | |
692 | void handle_dlopen_event(struct debug_info *debug_info, | |
693 | struct ctf_event_definition *event_def) | |
694 | { | |
695 | handle_bin_info_event(debug_info, event_def, false); | |
696 | } | |
697 | ||
698 | ||
c40a57e5 AB |
699 | static |
700 | void handle_statedump_start(struct debug_info *debug_info, | |
701 | struct ctf_event_definition *event_def) | |
702 | { | |
703 | struct bt_definition *vpid_def = NULL; | |
704 | struct bt_definition *sec_def = NULL; | |
705 | struct proc_debug_info_sources *proc_dbg_info_src; | |
706 | int64_t vpid; | |
707 | ||
708 | sec_def = (struct bt_definition *) | |
709 | event_def->stream->stream_event_context; | |
710 | if (!sec_def) { | |
711 | goto end; | |
712 | } | |
713 | ||
714 | vpid_def = bt_lookup_definition(sec_def, "_vpid"); | |
715 | if (!vpid_def) { | |
716 | goto end; | |
717 | } | |
718 | ||
719 | vpid = bt_get_signed_int(vpid_def); | |
720 | ||
721 | proc_dbg_info_src = proc_debug_info_sources_ht_get_entry( | |
722 | debug_info->vpid_to_proc_dbg_info_src, vpid); | |
723 | if (!proc_dbg_info_src) { | |
724 | goto end; | |
725 | } | |
726 | ||
d5ddf820 | 727 | g_hash_table_remove_all(proc_dbg_info_src->baddr_to_bin_info); |
c40a57e5 AB |
728 | g_hash_table_remove_all(proc_dbg_info_src->ip_to_debug_info_src); |
729 | ||
730 | end: | |
731 | return; | |
732 | } | |
733 | ||
734 | static | |
735 | void register_event_debug_infos(struct debug_info *debug_info, | |
736 | struct ctf_event_definition *event) | |
737 | { | |
738 | struct bt_definition *ip_def, *vpid_def; | |
739 | int64_t vpid; | |
740 | uint64_t ip; | |
741 | struct bt_definition *sec_def; | |
742 | ||
743 | /* Get stream event context definition. */ | |
744 | sec_def = (struct bt_definition *) event->stream->stream_event_context; | |
745 | if (!sec_def) { | |
746 | goto end; | |
747 | } | |
748 | ||
749 | /* Get "ip" and "vpid" definitions. */ | |
750 | vpid_def = bt_lookup_definition((struct bt_definition *) sec_def, | |
751 | "_vpid"); | |
752 | ip_def = bt_lookup_definition((struct bt_definition *) sec_def, "_ip"); | |
753 | ||
754 | if (!vpid_def || !ip_def) { | |
755 | goto end; | |
756 | } | |
757 | ||
758 | vpid = bt_get_signed_int(vpid_def); | |
759 | ip = bt_get_unsigned_int(ip_def); | |
760 | ||
761 | /* Get debug info for this context. */ | |
762 | ((struct definition_integer *) ip_def)->debug_info_src = | |
763 | debug_info_query(debug_info, vpid, ip); | |
764 | ||
765 | end: | |
766 | return; | |
767 | } | |
768 | ||
769 | BT_HIDDEN | |
770 | void debug_info_handle_event(struct debug_info *debug_info, | |
771 | struct ctf_event_definition *event) | |
772 | { | |
773 | struct ctf_event_declaration *event_class; | |
774 | struct ctf_stream_declaration *stream_class; | |
775 | ||
776 | if (!debug_info || !event) { | |
777 | goto end; | |
778 | } | |
779 | ||
780 | stream_class = event->stream->stream_class; | |
781 | event_class = g_ptr_array_index(stream_class->events_by_id, | |
782 | event->stream->event_id); | |
783 | ||
9c713367 | 784 | if (event_class->name == debug_info->q_statedump_bin_info) { |
9f2b13ca | 785 | /* State dump */ |
9c713367 | 786 | handle_statedump_bin_info_event(debug_info, event); |
9f2b13ca AB |
787 | } else if (event_class->name == debug_info->q_dl_open) { |
788 | handle_dlopen_event(debug_info, event); | |
c40a57e5 AB |
789 | } else if (event_class->name == debug_info->q_statedump_start) { |
790 | /* Start state dump */ | |
791 | handle_statedump_start(debug_info, event); | |
792 | } else if (event_class->name == debug_info->q_statedump_debug_link) { | |
793 | /* Debug link info */ | |
794 | handle_statedump_debug_link_event(debug_info, event); | |
795 | } else if (event_class->name == debug_info->q_statedump_build_id) { | |
796 | /* Build ID info */ | |
797 | handle_statedump_build_id_event(debug_info, event); | |
798 | } else { | |
799 | /* Other events: register debug infos */ | |
800 | register_event_debug_infos(debug_info, event); | |
801 | } | |
802 | ||
803 | end: | |
804 | return; | |
805 | } |