Commit | Line | Data |
---|---|---|
66e274f3 | 1 | #include "symbol.h" |
c6e718ff | 2 | #include <errno.h> |
9486aa38 | 3 | #include <inttypes.h> |
4b8cf846 | 4 | #include <limits.h> |
66e274f3 FW |
5 | #include <stdlib.h> |
6 | #include <string.h> | |
7 | #include <stdio.h> | |
a1645ce1 | 8 | #include <unistd.h> |
4b8cf846 | 9 | #include "map.h" |
5cd95c2d | 10 | #include "thread.h" |
c80c3c26 | 11 | #include "strlist.h" |
7dbf4dcf | 12 | #include "vdso.h" |
ebb296c2 | 13 | #include "build-id.h" |
66e274f3 | 14 | |
3846df2e ACM |
15 | const char *map_type__name[MAP__NR_TYPES] = { |
16 | [MAP__FUNCTION] = "Functions", | |
17 | [MAP__VARIABLE] = "Variables", | |
18 | }; | |
19 | ||
66e274f3 FW |
20 | static inline int is_anon_memory(const char *filename) |
21 | { | |
22 | return strcmp(filename, "//anon") == 0; | |
23 | } | |
24 | ||
87ffef79 JO |
25 | static inline int is_no_dso_memory(const char *filename) |
26 | { | |
27 | return !strcmp(filename, "[stack]") || | |
87ffef79 JO |
28 | !strcmp(filename, "[heap]"); |
29 | } | |
30 | ||
3610583c ACM |
31 | void map__init(struct map *self, enum map_type type, |
32 | u64 start, u64 end, u64 pgoff, struct dso *dso) | |
afb7b4f0 | 33 | { |
3610583c | 34 | self->type = type; |
afb7b4f0 ACM |
35 | self->start = start; |
36 | self->end = end; | |
37 | self->pgoff = pgoff; | |
38 | self->dso = dso; | |
39 | self->map_ip = map__map_ip; | |
40 | self->unmap_ip = map__unmap_ip; | |
41 | RB_CLEAR_NODE(&self->rb_node); | |
a1645ce1 | 42 | self->groups = NULL; |
0a1eae39 | 43 | self->referenced = false; |
31d68e7b | 44 | self->erange_warned = false; |
afb7b4f0 ACM |
45 | } |
46 | ||
a1645ce1 ZY |
47 | struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, |
48 | u64 pgoff, u32 pid, char *filename, | |
361d1346 | 49 | enum map_type type) |
66e274f3 FW |
50 | { |
51 | struct map *self = malloc(sizeof(*self)); | |
52 | ||
53 | if (self != NULL) { | |
66e274f3 | 54 | char newfilename[PATH_MAX]; |
afb7b4f0 | 55 | struct dso *dso; |
7dbf4dcf | 56 | int anon, no_dso, vdso; |
66e274f3 | 57 | |
66e274f3 | 58 | anon = is_anon_memory(filename); |
7dbf4dcf | 59 | vdso = is_vdso_map(filename); |
87ffef79 | 60 | no_dso = is_no_dso_memory(filename); |
66e274f3 FW |
61 | |
62 | if (anon) { | |
b177f63f | 63 | snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid); |
66e274f3 FW |
64 | filename = newfilename; |
65 | } | |
66 | ||
7dbf4dcf JO |
67 | if (vdso) { |
68 | pgoff = 0; | |
69 | dso = vdso__dso_findnew(dsos__list); | |
70 | } else | |
71 | dso = __dsos__findnew(dsos__list, filename); | |
72 | ||
afb7b4f0 | 73 | if (dso == NULL) |
66e274f3 FW |
74 | goto out_delete; |
75 | ||
b177f63f | 76 | map__init(self, type, start, start + len, pgoff, dso); |
afb7b4f0 | 77 | |
87ffef79 | 78 | if (anon || no_dso) { |
ed52ce2e | 79 | self->map_ip = self->unmap_ip = identity__map_ip; |
87ffef79 JO |
80 | |
81 | /* | |
82 | * Set memory without DSO as loaded. All map__find_* | |
83 | * functions still return NULL, and we avoid the | |
84 | * unnecessary map__load warning. | |
85 | */ | |
86 | if (no_dso) | |
87 | dso__set_loaded(dso, self->type); | |
8d92c02a | 88 | } |
66e274f3 FW |
89 | } |
90 | return self; | |
91 | out_delete: | |
92 | free(self); | |
93 | return NULL; | |
94 | } | |
95 | ||
e5a1845f NK |
96 | /* |
97 | * Constructor variant for modules (where we know from /proc/modules where | |
98 | * they are loaded) and for vmlinux, where only after we load all the | |
99 | * symbols we'll know where it starts and ends. | |
100 | */ | |
101 | struct map *map__new2(u64 start, struct dso *dso, enum map_type type) | |
102 | { | |
103 | struct map *map = calloc(1, (sizeof(*map) + | |
104 | (dso->kernel ? sizeof(struct kmap) : 0))); | |
105 | if (map != NULL) { | |
106 | /* | |
107 | * ->end will be filled after we load all the symbols | |
108 | */ | |
109 | map__init(map, type, start, 0, 0, dso); | |
110 | } | |
111 | ||
112 | return map; | |
113 | } | |
114 | ||
c338aee8 ACM |
115 | void map__delete(struct map *self) |
116 | { | |
117 | free(self); | |
118 | } | |
119 | ||
6a4694a4 | 120 | void map__fixup_start(struct map *self) |
c338aee8 | 121 | { |
6a4694a4 | 122 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 123 | struct rb_node *nd = rb_first(symbols); |
c338aee8 ACM |
124 | if (nd != NULL) { |
125 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
126 | self->start = sym->start; | |
127 | } | |
128 | } | |
129 | ||
6a4694a4 | 130 | void map__fixup_end(struct map *self) |
c338aee8 | 131 | { |
6a4694a4 | 132 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 133 | struct rb_node *nd = rb_last(symbols); |
c338aee8 ACM |
134 | if (nd != NULL) { |
135 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
136 | self->end = sym->end; | |
137 | } | |
138 | } | |
139 | ||
d70a5402 ACM |
140 | #define DSO__DELETED "(deleted)" |
141 | ||
9de89fe7 | 142 | int map__load(struct map *self, symbol_filter_t filter) |
66bd8424 | 143 | { |
79406cd7 | 144 | const char *name = self->dso->long_name; |
a128168d | 145 | int nr; |
79406cd7 | 146 | |
a128168d MH |
147 | if (dso__loaded(self->dso, self->type)) |
148 | return 0; | |
149 | ||
9de89fe7 | 150 | nr = dso__load(self->dso, self, filter); |
79406cd7 ACM |
151 | if (nr < 0) { |
152 | if (self->dso->has_build_id) { | |
153 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
154 | ||
155 | build_id__sprintf(self->dso->build_id, | |
156 | sizeof(self->dso->build_id), | |
157 | sbuild_id); | |
158 | pr_warning("%s with build id %s not found", | |
159 | name, sbuild_id); | |
160 | } else | |
161 | pr_warning("Failed to open %s", name); | |
162 | ||
163 | pr_warning(", continuing without symbols\n"); | |
164 | return -1; | |
165 | } else if (nr == 0) { | |
29a0fc9b | 166 | #ifdef LIBELF_SUPPORT |
79406cd7 ACM |
167 | const size_t len = strlen(name); |
168 | const size_t real_len = len - sizeof(DSO__DELETED); | |
169 | ||
170 | if (len > sizeof(DSO__DELETED) && | |
171 | strcmp(name + real_len + 1, DSO__DELETED) == 0) { | |
e77b15bd DA |
172 | pr_warning("%.*s was updated (is prelink enabled?). " |
173 | "Restart the long running apps that use it!\n", | |
79406cd7 ACM |
174 | (int)real_len, name); |
175 | } else { | |
176 | pr_warning("no symbols found in %s, maybe install " | |
177 | "a debug package?\n", name); | |
66bd8424 | 178 | } |
393be2e3 | 179 | #endif |
79406cd7 | 180 | return -1; |
66bd8424 | 181 | } |
9de89fe7 ACM |
182 | /* |
183 | * Only applies to the kernel, as its symtabs aren't relative like the | |
184 | * module ones. | |
185 | */ | |
186 | if (self->dso->kernel) | |
187 | map__reloc_vmlinux(self); | |
66bd8424 | 188 | |
79406cd7 ACM |
189 | return 0; |
190 | } | |
191 | ||
9de89fe7 ACM |
192 | struct symbol *map__find_symbol(struct map *self, u64 addr, |
193 | symbol_filter_t filter) | |
79406cd7 | 194 | { |
9de89fe7 | 195 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
196 | return NULL; |
197 | ||
ea08d8cb | 198 | return dso__find_symbol(self->dso, self->type, addr); |
66bd8424 ACM |
199 | } |
200 | ||
79406cd7 ACM |
201 | struct symbol *map__find_symbol_by_name(struct map *self, const char *name, |
202 | symbol_filter_t filter) | |
203 | { | |
9de89fe7 | 204 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
205 | return NULL; |
206 | ||
207 | if (!dso__sorted_by_name(self->dso, self->type)) | |
208 | dso__sort_by_name(self->dso, self->type); | |
209 | ||
210 | return dso__find_symbol_by_name(self->dso, self->type, name); | |
211 | } | |
212 | ||
66e274f3 FW |
213 | struct map *map__clone(struct map *self) |
214 | { | |
215 | struct map *map = malloc(sizeof(*self)); | |
216 | ||
217 | if (!map) | |
218 | return NULL; | |
219 | ||
220 | memcpy(map, self, sizeof(*self)); | |
221 | ||
222 | return map; | |
223 | } | |
224 | ||
225 | int map__overlap(struct map *l, struct map *r) | |
226 | { | |
227 | if (l->start > r->start) { | |
228 | struct map *t = l; | |
229 | l = r; | |
230 | r = t; | |
231 | } | |
232 | ||
233 | if (l->end > r->start) | |
234 | return 1; | |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
239 | size_t map__fprintf(struct map *self, FILE *fp) | |
240 | { | |
9486aa38 | 241 | return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s\n", |
66e274f3 FW |
242 | self->start, self->end, self->pgoff, self->dso->name); |
243 | } | |
7a2b6209 | 244 | |
547a92e0 AN |
245 | size_t map__fprintf_dsoname(struct map *map, FILE *fp) |
246 | { | |
8f28f19a | 247 | const char *dsoname = "[unknown]"; |
547a92e0 | 248 | |
0bc8d205 AN |
249 | if (map && map->dso && (map->dso->name || map->dso->long_name)) { |
250 | if (symbol_conf.show_kernel_path && map->dso->long_name) | |
251 | dsoname = map->dso->long_name; | |
252 | else if (map->dso->name) | |
253 | dsoname = map->dso->name; | |
8f28f19a | 254 | } |
547a92e0 AN |
255 | |
256 | return fprintf(fp, "%s", dsoname); | |
257 | } | |
258 | ||
7a2b6209 KS |
259 | /* |
260 | * objdump wants/reports absolute IPs for ET_EXEC, and RIPs for ET_DYN. | |
261 | * map->dso->adjust_symbols==1 for ET_EXEC-like cases. | |
262 | */ | |
263 | u64 map__rip_2objdump(struct map *map, u64 rip) | |
264 | { | |
265 | u64 addr = map->dso->adjust_symbols ? | |
266 | map->unmap_ip(map, rip) : /* RIP -> IP */ | |
267 | rip; | |
268 | return addr; | |
269 | } | |
ee11b90b | 270 | |
98dfd55d | 271 | void map_groups__init(struct map_groups *mg) |
c6e718ff ACM |
272 | { |
273 | int i; | |
274 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
98dfd55d ACM |
275 | mg->maps[i] = RB_ROOT; |
276 | INIT_LIST_HEAD(&mg->removed_maps[i]); | |
c6e718ff | 277 | } |
98dfd55d | 278 | mg->machine = NULL; |
c6e718ff ACM |
279 | } |
280 | ||
98dfd55d | 281 | static void maps__delete(struct rb_root *maps) |
591765fd | 282 | { |
98dfd55d | 283 | struct rb_node *next = rb_first(maps); |
591765fd ACM |
284 | |
285 | while (next) { | |
286 | struct map *pos = rb_entry(next, struct map, rb_node); | |
287 | ||
288 | next = rb_next(&pos->rb_node); | |
98dfd55d | 289 | rb_erase(&pos->rb_node, maps); |
591765fd ACM |
290 | map__delete(pos); |
291 | } | |
292 | } | |
293 | ||
98dfd55d | 294 | static void maps__delete_removed(struct list_head *maps) |
591765fd ACM |
295 | { |
296 | struct map *pos, *n; | |
297 | ||
98dfd55d | 298 | list_for_each_entry_safe(pos, n, maps, node) { |
591765fd ACM |
299 | list_del(&pos->node); |
300 | map__delete(pos); | |
301 | } | |
302 | } | |
303 | ||
98dfd55d | 304 | void map_groups__exit(struct map_groups *mg) |
591765fd ACM |
305 | { |
306 | int i; | |
307 | ||
308 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
98dfd55d ACM |
309 | maps__delete(&mg->maps[i]); |
310 | maps__delete_removed(&mg->removed_maps[i]); | |
591765fd ACM |
311 | } |
312 | } | |
313 | ||
98dfd55d | 314 | void map_groups__flush(struct map_groups *mg) |
c6e718ff ACM |
315 | { |
316 | int type; | |
317 | ||
318 | for (type = 0; type < MAP__NR_TYPES; type++) { | |
98dfd55d | 319 | struct rb_root *root = &mg->maps[type]; |
c6e718ff ACM |
320 | struct rb_node *next = rb_first(root); |
321 | ||
322 | while (next) { | |
323 | struct map *pos = rb_entry(next, struct map, rb_node); | |
324 | next = rb_next(&pos->rb_node); | |
325 | rb_erase(&pos->rb_node, root); | |
326 | /* | |
327 | * We may have references to this map, for | |
328 | * instance in some hist_entry instances, so | |
329 | * just move them to a separate list. | |
330 | */ | |
98dfd55d | 331 | list_add_tail(&pos->node, &mg->removed_maps[pos->type]); |
c6e718ff ACM |
332 | } |
333 | } | |
334 | } | |
335 | ||
98dfd55d | 336 | struct symbol *map_groups__find_symbol(struct map_groups *mg, |
4b8cf846 | 337 | enum map_type type, u64 addr, |
7e5e1b14 | 338 | struct map **mapp, |
4b8cf846 ACM |
339 | symbol_filter_t filter) |
340 | { | |
98dfd55d | 341 | struct map *map = map_groups__find(mg, type, addr); |
4b8cf846 | 342 | |
7e5e1b14 ACM |
343 | if (map != NULL) { |
344 | if (mapp != NULL) | |
345 | *mapp = map; | |
4b8cf846 | 346 | return map__find_symbol(map, map->map_ip(map, addr), filter); |
7e5e1b14 ACM |
347 | } |
348 | ||
349 | return NULL; | |
350 | } | |
351 | ||
98dfd55d | 352 | struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, |
7e5e1b14 ACM |
353 | enum map_type type, |
354 | const char *name, | |
355 | struct map **mapp, | |
356 | symbol_filter_t filter) | |
357 | { | |
358 | struct rb_node *nd; | |
359 | ||
98dfd55d | 360 | for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { |
7e5e1b14 ACM |
361 | struct map *pos = rb_entry(nd, struct map, rb_node); |
362 | struct symbol *sym = map__find_symbol_by_name(pos, name, filter); | |
363 | ||
364 | if (sym == NULL) | |
365 | continue; | |
366 | if (mapp != NULL) | |
367 | *mapp = pos; | |
368 | return sym; | |
369 | } | |
4b8cf846 ACM |
370 | |
371 | return NULL; | |
372 | } | |
373 | ||
98dfd55d | 374 | size_t __map_groups__fprintf_maps(struct map_groups *mg, |
c6e718ff ACM |
375 | enum map_type type, int verbose, FILE *fp) |
376 | { | |
377 | size_t printed = fprintf(fp, "%s:\n", map_type__name[type]); | |
378 | struct rb_node *nd; | |
379 | ||
98dfd55d | 380 | for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { |
c6e718ff ACM |
381 | struct map *pos = rb_entry(nd, struct map, rb_node); |
382 | printed += fprintf(fp, "Map:"); | |
383 | printed += map__fprintf(pos, fp); | |
384 | if (verbose > 2) { | |
385 | printed += dso__fprintf(pos->dso, type, fp); | |
386 | printed += fprintf(fp, "--\n"); | |
387 | } | |
388 | } | |
389 | ||
390 | return printed; | |
391 | } | |
392 | ||
98dfd55d | 393 | size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp) |
c6e718ff ACM |
394 | { |
395 | size_t printed = 0, i; | |
396 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
98dfd55d | 397 | printed += __map_groups__fprintf_maps(mg, i, verbose, fp); |
c6e718ff ACM |
398 | return printed; |
399 | } | |
400 | ||
98dfd55d | 401 | static size_t __map_groups__fprintf_removed_maps(struct map_groups *mg, |
c6e718ff ACM |
402 | enum map_type type, |
403 | int verbose, FILE *fp) | |
404 | { | |
405 | struct map *pos; | |
406 | size_t printed = 0; | |
407 | ||
98dfd55d | 408 | list_for_each_entry(pos, &mg->removed_maps[type], node) { |
c6e718ff ACM |
409 | printed += fprintf(fp, "Map:"); |
410 | printed += map__fprintf(pos, fp); | |
411 | if (verbose > 1) { | |
412 | printed += dso__fprintf(pos->dso, type, fp); | |
413 | printed += fprintf(fp, "--\n"); | |
414 | } | |
415 | } | |
416 | return printed; | |
417 | } | |
418 | ||
98dfd55d | 419 | static size_t map_groups__fprintf_removed_maps(struct map_groups *mg, |
c6e718ff ACM |
420 | int verbose, FILE *fp) |
421 | { | |
422 | size_t printed = 0, i; | |
423 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
98dfd55d | 424 | printed += __map_groups__fprintf_removed_maps(mg, i, verbose, fp); |
c6e718ff ACM |
425 | return printed; |
426 | } | |
427 | ||
98dfd55d | 428 | size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp) |
c6e718ff | 429 | { |
98dfd55d | 430 | size_t printed = map_groups__fprintf_maps(mg, verbose, fp); |
c6e718ff | 431 | printed += fprintf(fp, "Removed maps:\n"); |
98dfd55d | 432 | return printed + map_groups__fprintf_removed_maps(mg, verbose, fp); |
c6e718ff ACM |
433 | } |
434 | ||
98dfd55d | 435 | int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, |
c6e718ff ACM |
436 | int verbose, FILE *fp) |
437 | { | |
98dfd55d | 438 | struct rb_root *root = &mg->maps[map->type]; |
c6e718ff | 439 | struct rb_node *next = rb_first(root); |
0a1eae39 | 440 | int err = 0; |
c6e718ff ACM |
441 | |
442 | while (next) { | |
443 | struct map *pos = rb_entry(next, struct map, rb_node); | |
444 | next = rb_next(&pos->rb_node); | |
445 | ||
446 | if (!map__overlap(pos, map)) | |
447 | continue; | |
448 | ||
449 | if (verbose >= 2) { | |
450 | fputs("overlapping maps:\n", fp); | |
451 | map__fprintf(map, fp); | |
452 | map__fprintf(pos, fp); | |
453 | } | |
454 | ||
455 | rb_erase(&pos->rb_node, root); | |
c6e718ff ACM |
456 | /* |
457 | * Now check if we need to create new maps for areas not | |
458 | * overlapped by the new map: | |
459 | */ | |
460 | if (map->start > pos->start) { | |
461 | struct map *before = map__clone(pos); | |
462 | ||
0a1eae39 ACM |
463 | if (before == NULL) { |
464 | err = -ENOMEM; | |
465 | goto move_map; | |
466 | } | |
c6e718ff ACM |
467 | |
468 | before->end = map->start - 1; | |
98dfd55d | 469 | map_groups__insert(mg, before); |
c6e718ff ACM |
470 | if (verbose >= 2) |
471 | map__fprintf(before, fp); | |
472 | } | |
473 | ||
474 | if (map->end < pos->end) { | |
475 | struct map *after = map__clone(pos); | |
476 | ||
0a1eae39 ACM |
477 | if (after == NULL) { |
478 | err = -ENOMEM; | |
479 | goto move_map; | |
480 | } | |
c6e718ff ACM |
481 | |
482 | after->start = map->end + 1; | |
98dfd55d | 483 | map_groups__insert(mg, after); |
c6e718ff ACM |
484 | if (verbose >= 2) |
485 | map__fprintf(after, fp); | |
486 | } | |
0a1eae39 ACM |
487 | move_map: |
488 | /* | |
489 | * If we have references, just move them to a separate list. | |
490 | */ | |
491 | if (pos->referenced) | |
98dfd55d | 492 | list_add_tail(&pos->node, &mg->removed_maps[map->type]); |
0a1eae39 ACM |
493 | else |
494 | map__delete(pos); | |
495 | ||
496 | if (err) | |
497 | return err; | |
c6e718ff ACM |
498 | } |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
503 | /* | |
504 | * XXX This should not really _copy_ te maps, but refcount them. | |
505 | */ | |
98dfd55d | 506 | int map_groups__clone(struct map_groups *mg, |
c6e718ff ACM |
507 | struct map_groups *parent, enum map_type type) |
508 | { | |
509 | struct rb_node *nd; | |
510 | for (nd = rb_first(&parent->maps[type]); nd; nd = rb_next(nd)) { | |
511 | struct map *map = rb_entry(nd, struct map, rb_node); | |
512 | struct map *new = map__clone(map); | |
513 | if (new == NULL) | |
514 | return -ENOMEM; | |
98dfd55d | 515 | map_groups__insert(mg, new); |
c6e718ff ACM |
516 | } |
517 | return 0; | |
518 | } | |
519 | ||
4b8cf846 ACM |
520 | static u64 map__reloc_map_ip(struct map *map, u64 ip) |
521 | { | |
522 | return ip + (s64)map->pgoff; | |
523 | } | |
524 | ||
525 | static u64 map__reloc_unmap_ip(struct map *map, u64 ip) | |
526 | { | |
527 | return ip - (s64)map->pgoff; | |
528 | } | |
529 | ||
530 | void map__reloc_vmlinux(struct map *self) | |
531 | { | |
532 | struct kmap *kmap = map__kmap(self); | |
533 | s64 reloc; | |
534 | ||
535 | if (!kmap->ref_reloc_sym || !kmap->ref_reloc_sym->unrelocated_addr) | |
536 | return; | |
537 | ||
538 | reloc = (kmap->ref_reloc_sym->unrelocated_addr - | |
539 | kmap->ref_reloc_sym->addr); | |
540 | ||
541 | if (!reloc) | |
542 | return; | |
543 | ||
544 | self->map_ip = map__reloc_map_ip; | |
545 | self->unmap_ip = map__reloc_unmap_ip; | |
546 | self->pgoff = reloc; | |
547 | } | |
548 | ||
549 | void maps__insert(struct rb_root *maps, struct map *map) | |
550 | { | |
551 | struct rb_node **p = &maps->rb_node; | |
552 | struct rb_node *parent = NULL; | |
553 | const u64 ip = map->start; | |
554 | struct map *m; | |
555 | ||
556 | while (*p != NULL) { | |
557 | parent = *p; | |
558 | m = rb_entry(parent, struct map, rb_node); | |
559 | if (ip < m->start) | |
560 | p = &(*p)->rb_left; | |
561 | else | |
562 | p = &(*p)->rb_right; | |
563 | } | |
564 | ||
565 | rb_link_node(&map->rb_node, parent, p); | |
566 | rb_insert_color(&map->rb_node, maps); | |
567 | } | |
568 | ||
076c6e45 ACM |
569 | void maps__remove(struct rb_root *self, struct map *map) |
570 | { | |
571 | rb_erase(&map->rb_node, self); | |
572 | } | |
573 | ||
4b8cf846 ACM |
574 | struct map *maps__find(struct rb_root *maps, u64 ip) |
575 | { | |
576 | struct rb_node **p = &maps->rb_node; | |
577 | struct rb_node *parent = NULL; | |
578 | struct map *m; | |
579 | ||
580 | while (*p != NULL) { | |
581 | parent = *p; | |
582 | m = rb_entry(parent, struct map, rb_node); | |
583 | if (ip < m->start) | |
584 | p = &(*p)->rb_left; | |
585 | else if (ip > m->end) | |
586 | p = &(*p)->rb_right; | |
587 | else | |
588 | return m; | |
589 | } | |
590 | ||
591 | return NULL; | |
592 | } | |
a1645ce1 | 593 | |
d28c6223 ACM |
594 | int machine__init(struct machine *self, const char *root_dir, pid_t pid) |
595 | { | |
596 | map_groups__init(&self->kmaps); | |
597 | RB_CLEAR_NODE(&self->rb_node); | |
598 | INIT_LIST_HEAD(&self->user_dsos); | |
599 | INIT_LIST_HEAD(&self->kernel_dsos); | |
600 | ||
b424eba2 ACM |
601 | self->threads = RB_ROOT; |
602 | INIT_LIST_HEAD(&self->dead_threads); | |
603 | self->last_match = NULL; | |
604 | ||
d28c6223 ACM |
605 | self->kmaps.machine = self; |
606 | self->pid = pid; | |
607 | self->root_dir = strdup(root_dir); | |
5cd95c2d DA |
608 | if (self->root_dir == NULL) |
609 | return -ENOMEM; | |
610 | ||
611 | if (pid != HOST_KERNEL_ID) { | |
612 | struct thread *thread = machine__findnew_thread(self, pid); | |
613 | char comm[64]; | |
614 | ||
615 | if (thread == NULL) | |
616 | return -ENOMEM; | |
617 | ||
618 | snprintf(comm, sizeof(comm), "[guest/%d]", pid); | |
619 | thread__set_comm(thread, comm); | |
620 | } | |
621 | ||
622 | return 0; | |
d28c6223 ACM |
623 | } |
624 | ||
d65a458b ACM |
625 | static void dsos__delete(struct list_head *self) |
626 | { | |
627 | struct dso *pos, *n; | |
628 | ||
629 | list_for_each_entry_safe(pos, n, self, node) { | |
630 | list_del(&pos->node); | |
631 | dso__delete(pos); | |
632 | } | |
633 | } | |
634 | ||
635 | void machine__exit(struct machine *self) | |
636 | { | |
d65a458b ACM |
637 | map_groups__exit(&self->kmaps); |
638 | dsos__delete(&self->user_dsos); | |
639 | dsos__delete(&self->kernel_dsos); | |
640 | free(self->root_dir); | |
641 | self->root_dir = NULL; | |
642 | } | |
643 | ||
076c6e45 ACM |
644 | void machine__delete(struct machine *self) |
645 | { | |
646 | machine__exit(self); | |
647 | free(self); | |
648 | } | |
649 | ||
23346f21 ACM |
650 | struct machine *machines__add(struct rb_root *self, pid_t pid, |
651 | const char *root_dir) | |
a1645ce1 | 652 | { |
23346f21 | 653 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 654 | struct rb_node *parent = NULL; |
23346f21 | 655 | struct machine *pos, *machine = malloc(sizeof(*machine)); |
a1645ce1 | 656 | |
23346f21 | 657 | if (!machine) |
a1645ce1 ZY |
658 | return NULL; |
659 | ||
d28c6223 ACM |
660 | if (machine__init(machine, root_dir, pid) != 0) { |
661 | free(machine); | |
662 | return NULL; | |
663 | } | |
a1645ce1 ZY |
664 | |
665 | while (*p != NULL) { | |
666 | parent = *p; | |
23346f21 | 667 | pos = rb_entry(parent, struct machine, rb_node); |
a1645ce1 ZY |
668 | if (pid < pos->pid) |
669 | p = &(*p)->rb_left; | |
670 | else | |
671 | p = &(*p)->rb_right; | |
672 | } | |
673 | ||
23346f21 ACM |
674 | rb_link_node(&machine->rb_node, parent, p); |
675 | rb_insert_color(&machine->rb_node, self); | |
a1645ce1 | 676 | |
23346f21 | 677 | return machine; |
a1645ce1 ZY |
678 | } |
679 | ||
23346f21 | 680 | struct machine *machines__find(struct rb_root *self, pid_t pid) |
a1645ce1 | 681 | { |
23346f21 | 682 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 683 | struct rb_node *parent = NULL; |
23346f21 ACM |
684 | struct machine *machine; |
685 | struct machine *default_machine = NULL; | |
a1645ce1 ZY |
686 | |
687 | while (*p != NULL) { | |
688 | parent = *p; | |
23346f21 ACM |
689 | machine = rb_entry(parent, struct machine, rb_node); |
690 | if (pid < machine->pid) | |
a1645ce1 | 691 | p = &(*p)->rb_left; |
23346f21 | 692 | else if (pid > machine->pid) |
a1645ce1 ZY |
693 | p = &(*p)->rb_right; |
694 | else | |
23346f21 ACM |
695 | return machine; |
696 | if (!machine->pid) | |
697 | default_machine = machine; | |
a1645ce1 ZY |
698 | } |
699 | ||
23346f21 | 700 | return default_machine; |
a1645ce1 ZY |
701 | } |
702 | ||
23346f21 | 703 | struct machine *machines__findnew(struct rb_root *self, pid_t pid) |
a1645ce1 ZY |
704 | { |
705 | char path[PATH_MAX]; | |
7ed97ad4 | 706 | const char *root_dir = ""; |
23346f21 | 707 | struct machine *machine = machines__find(self, pid); |
a1645ce1 | 708 | |
7ed97ad4 DA |
709 | if (machine && (machine->pid == pid)) |
710 | goto out; | |
711 | ||
712 | if ((pid != HOST_KERNEL_ID) && | |
713 | (pid != DEFAULT_GUEST_KERNEL_ID) && | |
714 | (symbol_conf.guestmount)) { | |
715 | sprintf(path, "%s/%d", symbol_conf.guestmount, pid); | |
716 | if (access(path, R_OK)) { | |
c80c3c26 DA |
717 | static struct strlist *seen; |
718 | ||
719 | if (!seen) | |
720 | seen = strlist__new(true, NULL); | |
721 | ||
722 | if (!strlist__has_entry(seen, path)) { | |
723 | pr_err("Can't access file %s\n", path); | |
724 | strlist__add(seen, path); | |
725 | } | |
7ed97ad4 DA |
726 | machine = NULL; |
727 | goto out; | |
a1645ce1 | 728 | } |
7ed97ad4 | 729 | root_dir = path; |
a1645ce1 ZY |
730 | } |
731 | ||
7ed97ad4 DA |
732 | machine = machines__add(self, pid, root_dir); |
733 | ||
a1645ce1 | 734 | out: |
23346f21 | 735 | return machine; |
a1645ce1 ZY |
736 | } |
737 | ||
23346f21 | 738 | void machines__process(struct rb_root *self, machine__process_t process, void *data) |
a1645ce1 ZY |
739 | { |
740 | struct rb_node *nd; | |
741 | ||
23346f21 ACM |
742 | for (nd = rb_first(self); nd; nd = rb_next(nd)) { |
743 | struct machine *pos = rb_entry(nd, struct machine, rb_node); | |
a1645ce1 ZY |
744 | process(pos, data); |
745 | } | |
746 | } | |
747 | ||
48ea8f54 | 748 | char *machine__mmap_name(struct machine *self, char *bf, size_t size) |
a1645ce1 | 749 | { |
23346f21 | 750 | if (machine__is_host(self)) |
48ea8f54 | 751 | snprintf(bf, size, "[%s]", "kernel.kallsyms"); |
23346f21 | 752 | else if (machine__is_default_guest(self)) |
48ea8f54 | 753 | snprintf(bf, size, "[%s]", "guest.kernel.kallsyms"); |
a1645ce1 | 754 | else |
48ea8f54 | 755 | snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms", self->pid); |
a1645ce1 | 756 | |
48ea8f54 | 757 | return bf; |
a1645ce1 | 758 | } |
adb5d2a4 DA |
759 | |
760 | void machines__set_id_hdr_size(struct rb_root *machines, u16 id_hdr_size) | |
761 | { | |
762 | struct rb_node *node; | |
763 | struct machine *machine; | |
764 | ||
765 | for (node = rb_first(machines); node; node = rb_next(node)) { | |
766 | machine = rb_entry(node, struct machine, rb_node); | |
767 | machine->id_hdr_size = id_hdr_size; | |
768 | } | |
769 | ||
770 | return; | |
771 | } |