Commit | Line | Data |
---|---|---|
66e274f3 | 1 | #include "symbol.h" |
c6e718ff | 2 | #include <errno.h> |
4b8cf846 | 3 | #include <limits.h> |
66e274f3 FW |
4 | #include <stdlib.h> |
5 | #include <string.h> | |
6 | #include <stdio.h> | |
a1645ce1 | 7 | #include <unistd.h> |
4b8cf846 | 8 | #include "map.h" |
66e274f3 | 9 | |
3846df2e ACM |
10 | const char *map_type__name[MAP__NR_TYPES] = { |
11 | [MAP__FUNCTION] = "Functions", | |
12 | [MAP__VARIABLE] = "Variables", | |
13 | }; | |
14 | ||
66e274f3 FW |
15 | static inline int is_anon_memory(const char *filename) |
16 | { | |
17 | return strcmp(filename, "//anon") == 0; | |
18 | } | |
19 | ||
20 | static int strcommon(const char *pathname, char *cwd, int cwdlen) | |
21 | { | |
22 | int n = 0; | |
23 | ||
24 | while (n < cwdlen && pathname[n] == cwd[n]) | |
25 | ++n; | |
26 | ||
27 | return n; | |
28 | } | |
29 | ||
3610583c ACM |
30 | void map__init(struct map *self, enum map_type type, |
31 | u64 start, u64 end, u64 pgoff, struct dso *dso) | |
afb7b4f0 | 32 | { |
3610583c | 33 | self->type = type; |
afb7b4f0 ACM |
34 | self->start = start; |
35 | self->end = end; | |
36 | self->pgoff = pgoff; | |
37 | self->dso = dso; | |
38 | self->map_ip = map__map_ip; | |
39 | self->unmap_ip = map__unmap_ip; | |
40 | RB_CLEAR_NODE(&self->rb_node); | |
a1645ce1 | 41 | self->groups = NULL; |
afb7b4f0 ACM |
42 | } |
43 | ||
a1645ce1 ZY |
44 | struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, |
45 | u64 pgoff, u32 pid, char *filename, | |
b177f63f | 46 | enum map_type type, char *cwd, int cwdlen) |
66e274f3 FW |
47 | { |
48 | struct map *self = malloc(sizeof(*self)); | |
49 | ||
50 | if (self != NULL) { | |
66e274f3 | 51 | char newfilename[PATH_MAX]; |
afb7b4f0 | 52 | struct dso *dso; |
66e274f3 FW |
53 | int anon; |
54 | ||
55 | if (cwd) { | |
56 | int n = strcommon(filename, cwd, cwdlen); | |
57 | ||
58 | if (n == cwdlen) { | |
59 | snprintf(newfilename, sizeof(newfilename), | |
60 | ".%s", filename + n); | |
61 | filename = newfilename; | |
62 | } | |
63 | } | |
64 | ||
65 | anon = is_anon_memory(filename); | |
66 | ||
67 | if (anon) { | |
b177f63f | 68 | snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid); |
66e274f3 FW |
69 | filename = newfilename; |
70 | } | |
71 | ||
a1645ce1 | 72 | dso = __dsos__findnew(dsos__list, filename); |
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 | |
8d92c02a ACM |
78 | if (anon) { |
79 | set_identity: | |
ed52ce2e | 80 | self->map_ip = self->unmap_ip = identity__map_ip; |
8d92c02a ACM |
81 | } else if (strcmp(filename, "[vdso]") == 0) { |
82 | dso__set_loaded(dso, self->type); | |
83 | goto set_identity; | |
84 | } | |
66e274f3 FW |
85 | } |
86 | return self; | |
87 | out_delete: | |
88 | free(self); | |
89 | return NULL; | |
90 | } | |
91 | ||
c338aee8 ACM |
92 | void map__delete(struct map *self) |
93 | { | |
94 | free(self); | |
95 | } | |
96 | ||
6a4694a4 | 97 | void map__fixup_start(struct map *self) |
c338aee8 | 98 | { |
6a4694a4 | 99 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 100 | struct rb_node *nd = rb_first(symbols); |
c338aee8 ACM |
101 | if (nd != NULL) { |
102 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
103 | self->start = sym->start; | |
104 | } | |
105 | } | |
106 | ||
6a4694a4 | 107 | void map__fixup_end(struct map *self) |
c338aee8 | 108 | { |
6a4694a4 | 109 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 110 | struct rb_node *nd = rb_last(symbols); |
c338aee8 ACM |
111 | if (nd != NULL) { |
112 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
113 | self->end = sym->end; | |
114 | } | |
115 | } | |
116 | ||
d70a5402 ACM |
117 | #define DSO__DELETED "(deleted)" |
118 | ||
9de89fe7 | 119 | int map__load(struct map *self, symbol_filter_t filter) |
66bd8424 | 120 | { |
79406cd7 | 121 | const char *name = self->dso->long_name; |
a128168d | 122 | int nr; |
79406cd7 | 123 | |
a128168d MH |
124 | if (dso__loaded(self->dso, self->type)) |
125 | return 0; | |
126 | ||
9de89fe7 | 127 | nr = dso__load(self->dso, self, filter); |
79406cd7 ACM |
128 | if (nr < 0) { |
129 | if (self->dso->has_build_id) { | |
130 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
131 | ||
132 | build_id__sprintf(self->dso->build_id, | |
133 | sizeof(self->dso->build_id), | |
134 | sbuild_id); | |
135 | pr_warning("%s with build id %s not found", | |
136 | name, sbuild_id); | |
137 | } else | |
138 | pr_warning("Failed to open %s", name); | |
139 | ||
140 | pr_warning(", continuing without symbols\n"); | |
141 | return -1; | |
142 | } else if (nr == 0) { | |
143 | const size_t len = strlen(name); | |
144 | const size_t real_len = len - sizeof(DSO__DELETED); | |
145 | ||
146 | if (len > sizeof(DSO__DELETED) && | |
147 | strcmp(name + real_len + 1, DSO__DELETED) == 0) { | |
148 | pr_warning("%.*s was updated, restart the long " | |
149 | "running apps that use it!\n", | |
150 | (int)real_len, name); | |
151 | } else { | |
152 | pr_warning("no symbols found in %s, maybe install " | |
153 | "a debug package?\n", name); | |
66bd8424 | 154 | } |
79406cd7 ACM |
155 | |
156 | return -1; | |
66bd8424 | 157 | } |
9de89fe7 ACM |
158 | /* |
159 | * Only applies to the kernel, as its symtabs aren't relative like the | |
160 | * module ones. | |
161 | */ | |
162 | if (self->dso->kernel) | |
163 | map__reloc_vmlinux(self); | |
66bd8424 | 164 | |
79406cd7 ACM |
165 | return 0; |
166 | } | |
167 | ||
9de89fe7 ACM |
168 | struct symbol *map__find_symbol(struct map *self, u64 addr, |
169 | symbol_filter_t filter) | |
79406cd7 | 170 | { |
9de89fe7 | 171 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
172 | return NULL; |
173 | ||
ea08d8cb | 174 | return dso__find_symbol(self->dso, self->type, addr); |
66bd8424 ACM |
175 | } |
176 | ||
79406cd7 ACM |
177 | struct symbol *map__find_symbol_by_name(struct map *self, const char *name, |
178 | symbol_filter_t filter) | |
179 | { | |
9de89fe7 | 180 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
181 | return NULL; |
182 | ||
183 | if (!dso__sorted_by_name(self->dso, self->type)) | |
184 | dso__sort_by_name(self->dso, self->type); | |
185 | ||
186 | return dso__find_symbol_by_name(self->dso, self->type, name); | |
187 | } | |
188 | ||
66e274f3 FW |
189 | struct map *map__clone(struct map *self) |
190 | { | |
191 | struct map *map = malloc(sizeof(*self)); | |
192 | ||
193 | if (!map) | |
194 | return NULL; | |
195 | ||
196 | memcpy(map, self, sizeof(*self)); | |
197 | ||
198 | return map; | |
199 | } | |
200 | ||
201 | int map__overlap(struct map *l, struct map *r) | |
202 | { | |
203 | if (l->start > r->start) { | |
204 | struct map *t = l; | |
205 | l = r; | |
206 | r = t; | |
207 | } | |
208 | ||
209 | if (l->end > r->start) | |
210 | return 1; | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | size_t map__fprintf(struct map *self, FILE *fp) | |
216 | { | |
217 | return fprintf(fp, " %Lx-%Lx %Lx %s\n", | |
218 | self->start, self->end, self->pgoff, self->dso->name); | |
219 | } | |
7a2b6209 KS |
220 | |
221 | /* | |
222 | * objdump wants/reports absolute IPs for ET_EXEC, and RIPs for ET_DYN. | |
223 | * map->dso->adjust_symbols==1 for ET_EXEC-like cases. | |
224 | */ | |
225 | u64 map__rip_2objdump(struct map *map, u64 rip) | |
226 | { | |
227 | u64 addr = map->dso->adjust_symbols ? | |
228 | map->unmap_ip(map, rip) : /* RIP -> IP */ | |
229 | rip; | |
230 | return addr; | |
231 | } | |
ee11b90b KS |
232 | |
233 | u64 map__objdump_2ip(struct map *map, u64 addr) | |
234 | { | |
235 | u64 ip = map->dso->adjust_symbols ? | |
236 | addr : | |
237 | map->unmap_ip(map, addr); /* RIP -> IP */ | |
238 | return ip; | |
239 | } | |
4b8cf846 | 240 | |
c6e718ff ACM |
241 | void map_groups__init(struct map_groups *self) |
242 | { | |
243 | int i; | |
244 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
245 | self->maps[i] = RB_ROOT; | |
246 | INIT_LIST_HEAD(&self->removed_maps[i]); | |
247 | } | |
23346f21 | 248 | self->machine = NULL; |
c6e718ff ACM |
249 | } |
250 | ||
251 | void map_groups__flush(struct map_groups *self) | |
252 | { | |
253 | int type; | |
254 | ||
255 | for (type = 0; type < MAP__NR_TYPES; type++) { | |
256 | struct rb_root *root = &self->maps[type]; | |
257 | struct rb_node *next = rb_first(root); | |
258 | ||
259 | while (next) { | |
260 | struct map *pos = rb_entry(next, struct map, rb_node); | |
261 | next = rb_next(&pos->rb_node); | |
262 | rb_erase(&pos->rb_node, root); | |
263 | /* | |
264 | * We may have references to this map, for | |
265 | * instance in some hist_entry instances, so | |
266 | * just move them to a separate list. | |
267 | */ | |
268 | list_add_tail(&pos->node, &self->removed_maps[pos->type]); | |
269 | } | |
270 | } | |
271 | } | |
272 | ||
4b8cf846 ACM |
273 | struct symbol *map_groups__find_symbol(struct map_groups *self, |
274 | enum map_type type, u64 addr, | |
7e5e1b14 | 275 | struct map **mapp, |
4b8cf846 ACM |
276 | symbol_filter_t filter) |
277 | { | |
278 | struct map *map = map_groups__find(self, type, addr); | |
279 | ||
7e5e1b14 ACM |
280 | if (map != NULL) { |
281 | if (mapp != NULL) | |
282 | *mapp = map; | |
4b8cf846 | 283 | return map__find_symbol(map, map->map_ip(map, addr), filter); |
7e5e1b14 ACM |
284 | } |
285 | ||
286 | return NULL; | |
287 | } | |
288 | ||
289 | struct symbol *map_groups__find_symbol_by_name(struct map_groups *self, | |
290 | enum map_type type, | |
291 | const char *name, | |
292 | struct map **mapp, | |
293 | symbol_filter_t filter) | |
294 | { | |
295 | struct rb_node *nd; | |
296 | ||
297 | for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) { | |
298 | struct map *pos = rb_entry(nd, struct map, rb_node); | |
299 | struct symbol *sym = map__find_symbol_by_name(pos, name, filter); | |
300 | ||
301 | if (sym == NULL) | |
302 | continue; | |
303 | if (mapp != NULL) | |
304 | *mapp = pos; | |
305 | return sym; | |
306 | } | |
4b8cf846 ACM |
307 | |
308 | return NULL; | |
309 | } | |
310 | ||
c6e718ff ACM |
311 | size_t __map_groups__fprintf_maps(struct map_groups *self, |
312 | enum map_type type, int verbose, FILE *fp) | |
313 | { | |
314 | size_t printed = fprintf(fp, "%s:\n", map_type__name[type]); | |
315 | struct rb_node *nd; | |
316 | ||
317 | for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) { | |
318 | struct map *pos = rb_entry(nd, struct map, rb_node); | |
319 | printed += fprintf(fp, "Map:"); | |
320 | printed += map__fprintf(pos, fp); | |
321 | if (verbose > 2) { | |
322 | printed += dso__fprintf(pos->dso, type, fp); | |
323 | printed += fprintf(fp, "--\n"); | |
324 | } | |
325 | } | |
326 | ||
327 | return printed; | |
328 | } | |
329 | ||
330 | size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp) | |
331 | { | |
332 | size_t printed = 0, i; | |
333 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
334 | printed += __map_groups__fprintf_maps(self, i, verbose, fp); | |
335 | return printed; | |
336 | } | |
337 | ||
338 | static size_t __map_groups__fprintf_removed_maps(struct map_groups *self, | |
339 | enum map_type type, | |
340 | int verbose, FILE *fp) | |
341 | { | |
342 | struct map *pos; | |
343 | size_t printed = 0; | |
344 | ||
345 | list_for_each_entry(pos, &self->removed_maps[type], node) { | |
346 | printed += fprintf(fp, "Map:"); | |
347 | printed += map__fprintf(pos, fp); | |
348 | if (verbose > 1) { | |
349 | printed += dso__fprintf(pos->dso, type, fp); | |
350 | printed += fprintf(fp, "--\n"); | |
351 | } | |
352 | } | |
353 | return printed; | |
354 | } | |
355 | ||
356 | static size_t map_groups__fprintf_removed_maps(struct map_groups *self, | |
357 | int verbose, FILE *fp) | |
358 | { | |
359 | size_t printed = 0, i; | |
360 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
361 | printed += __map_groups__fprintf_removed_maps(self, i, verbose, fp); | |
362 | return printed; | |
363 | } | |
364 | ||
365 | size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp) | |
366 | { | |
367 | size_t printed = map_groups__fprintf_maps(self, verbose, fp); | |
368 | printed += fprintf(fp, "Removed maps:\n"); | |
369 | return printed + map_groups__fprintf_removed_maps(self, verbose, fp); | |
370 | } | |
371 | ||
372 | int map_groups__fixup_overlappings(struct map_groups *self, struct map *map, | |
373 | int verbose, FILE *fp) | |
374 | { | |
375 | struct rb_root *root = &self->maps[map->type]; | |
376 | struct rb_node *next = rb_first(root); | |
377 | ||
378 | while (next) { | |
379 | struct map *pos = rb_entry(next, struct map, rb_node); | |
380 | next = rb_next(&pos->rb_node); | |
381 | ||
382 | if (!map__overlap(pos, map)) | |
383 | continue; | |
384 | ||
385 | if (verbose >= 2) { | |
386 | fputs("overlapping maps:\n", fp); | |
387 | map__fprintf(map, fp); | |
388 | map__fprintf(pos, fp); | |
389 | } | |
390 | ||
391 | rb_erase(&pos->rb_node, root); | |
392 | /* | |
393 | * We may have references to this map, for instance in some | |
394 | * hist_entry instances, so just move them to a separate | |
395 | * list. | |
396 | */ | |
397 | list_add_tail(&pos->node, &self->removed_maps[map->type]); | |
398 | /* | |
399 | * Now check if we need to create new maps for areas not | |
400 | * overlapped by the new map: | |
401 | */ | |
402 | if (map->start > pos->start) { | |
403 | struct map *before = map__clone(pos); | |
404 | ||
405 | if (before == NULL) | |
406 | return -ENOMEM; | |
407 | ||
408 | before->end = map->start - 1; | |
409 | map_groups__insert(self, before); | |
410 | if (verbose >= 2) | |
411 | map__fprintf(before, fp); | |
412 | } | |
413 | ||
414 | if (map->end < pos->end) { | |
415 | struct map *after = map__clone(pos); | |
416 | ||
417 | if (after == NULL) | |
418 | return -ENOMEM; | |
419 | ||
420 | after->start = map->end + 1; | |
421 | map_groups__insert(self, after); | |
422 | if (verbose >= 2) | |
423 | map__fprintf(after, fp); | |
424 | } | |
425 | } | |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
430 | /* | |
431 | * XXX This should not really _copy_ te maps, but refcount them. | |
432 | */ | |
433 | int map_groups__clone(struct map_groups *self, | |
434 | struct map_groups *parent, enum map_type type) | |
435 | { | |
436 | struct rb_node *nd; | |
437 | for (nd = rb_first(&parent->maps[type]); nd; nd = rb_next(nd)) { | |
438 | struct map *map = rb_entry(nd, struct map, rb_node); | |
439 | struct map *new = map__clone(map); | |
440 | if (new == NULL) | |
441 | return -ENOMEM; | |
442 | map_groups__insert(self, new); | |
443 | } | |
444 | return 0; | |
445 | } | |
446 | ||
4b8cf846 ACM |
447 | static u64 map__reloc_map_ip(struct map *map, u64 ip) |
448 | { | |
449 | return ip + (s64)map->pgoff; | |
450 | } | |
451 | ||
452 | static u64 map__reloc_unmap_ip(struct map *map, u64 ip) | |
453 | { | |
454 | return ip - (s64)map->pgoff; | |
455 | } | |
456 | ||
457 | void map__reloc_vmlinux(struct map *self) | |
458 | { | |
459 | struct kmap *kmap = map__kmap(self); | |
460 | s64 reloc; | |
461 | ||
462 | if (!kmap->ref_reloc_sym || !kmap->ref_reloc_sym->unrelocated_addr) | |
463 | return; | |
464 | ||
465 | reloc = (kmap->ref_reloc_sym->unrelocated_addr - | |
466 | kmap->ref_reloc_sym->addr); | |
467 | ||
468 | if (!reloc) | |
469 | return; | |
470 | ||
471 | self->map_ip = map__reloc_map_ip; | |
472 | self->unmap_ip = map__reloc_unmap_ip; | |
473 | self->pgoff = reloc; | |
474 | } | |
475 | ||
476 | void maps__insert(struct rb_root *maps, struct map *map) | |
477 | { | |
478 | struct rb_node **p = &maps->rb_node; | |
479 | struct rb_node *parent = NULL; | |
480 | const u64 ip = map->start; | |
481 | struct map *m; | |
482 | ||
483 | while (*p != NULL) { | |
484 | parent = *p; | |
485 | m = rb_entry(parent, struct map, rb_node); | |
486 | if (ip < m->start) | |
487 | p = &(*p)->rb_left; | |
488 | else | |
489 | p = &(*p)->rb_right; | |
490 | } | |
491 | ||
492 | rb_link_node(&map->rb_node, parent, p); | |
493 | rb_insert_color(&map->rb_node, maps); | |
494 | } | |
495 | ||
496 | struct map *maps__find(struct rb_root *maps, u64 ip) | |
497 | { | |
498 | struct rb_node **p = &maps->rb_node; | |
499 | struct rb_node *parent = NULL; | |
500 | struct map *m; | |
501 | ||
502 | while (*p != NULL) { | |
503 | parent = *p; | |
504 | m = rb_entry(parent, struct map, rb_node); | |
505 | if (ip < m->start) | |
506 | p = &(*p)->rb_left; | |
507 | else if (ip > m->end) | |
508 | p = &(*p)->rb_right; | |
509 | else | |
510 | return m; | |
511 | } | |
512 | ||
513 | return NULL; | |
514 | } | |
a1645ce1 | 515 | |
d28c6223 ACM |
516 | int machine__init(struct machine *self, const char *root_dir, pid_t pid) |
517 | { | |
518 | map_groups__init(&self->kmaps); | |
519 | RB_CLEAR_NODE(&self->rb_node); | |
520 | INIT_LIST_HEAD(&self->user_dsos); | |
521 | INIT_LIST_HEAD(&self->kernel_dsos); | |
522 | ||
523 | self->kmaps.machine = self; | |
524 | self->pid = pid; | |
525 | self->root_dir = strdup(root_dir); | |
526 | return self->root_dir == NULL ? -ENOMEM : 0; | |
527 | } | |
528 | ||
23346f21 ACM |
529 | struct machine *machines__add(struct rb_root *self, pid_t pid, |
530 | const char *root_dir) | |
a1645ce1 | 531 | { |
23346f21 | 532 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 533 | struct rb_node *parent = NULL; |
23346f21 | 534 | struct machine *pos, *machine = malloc(sizeof(*machine)); |
a1645ce1 | 535 | |
23346f21 | 536 | if (!machine) |
a1645ce1 ZY |
537 | return NULL; |
538 | ||
d28c6223 ACM |
539 | if (machine__init(machine, root_dir, pid) != 0) { |
540 | free(machine); | |
541 | return NULL; | |
542 | } | |
a1645ce1 ZY |
543 | |
544 | while (*p != NULL) { | |
545 | parent = *p; | |
23346f21 | 546 | pos = rb_entry(parent, struct machine, rb_node); |
a1645ce1 ZY |
547 | if (pid < pos->pid) |
548 | p = &(*p)->rb_left; | |
549 | else | |
550 | p = &(*p)->rb_right; | |
551 | } | |
552 | ||
23346f21 ACM |
553 | rb_link_node(&machine->rb_node, parent, p); |
554 | rb_insert_color(&machine->rb_node, self); | |
a1645ce1 | 555 | |
23346f21 | 556 | return machine; |
a1645ce1 ZY |
557 | } |
558 | ||
23346f21 | 559 | struct machine *machines__find(struct rb_root *self, pid_t pid) |
a1645ce1 | 560 | { |
23346f21 | 561 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 562 | struct rb_node *parent = NULL; |
23346f21 ACM |
563 | struct machine *machine; |
564 | struct machine *default_machine = NULL; | |
a1645ce1 ZY |
565 | |
566 | while (*p != NULL) { | |
567 | parent = *p; | |
23346f21 ACM |
568 | machine = rb_entry(parent, struct machine, rb_node); |
569 | if (pid < machine->pid) | |
a1645ce1 | 570 | p = &(*p)->rb_left; |
23346f21 | 571 | else if (pid > machine->pid) |
a1645ce1 ZY |
572 | p = &(*p)->rb_right; |
573 | else | |
23346f21 ACM |
574 | return machine; |
575 | if (!machine->pid) | |
576 | default_machine = machine; | |
a1645ce1 ZY |
577 | } |
578 | ||
23346f21 | 579 | return default_machine; |
a1645ce1 ZY |
580 | } |
581 | ||
23346f21 | 582 | struct machine *machines__findnew(struct rb_root *self, pid_t pid) |
a1645ce1 ZY |
583 | { |
584 | char path[PATH_MAX]; | |
585 | const char *root_dir; | |
23346f21 | 586 | struct machine *machine = machines__find(self, pid); |
a1645ce1 | 587 | |
23346f21 | 588 | if (!machine || machine->pid != pid) { |
a1645ce1 ZY |
589 | if (pid == HOST_KERNEL_ID || pid == DEFAULT_GUEST_KERNEL_ID) |
590 | root_dir = ""; | |
591 | else { | |
592 | if (!symbol_conf.guestmount) | |
593 | goto out; | |
594 | sprintf(path, "%s/%d", symbol_conf.guestmount, pid); | |
23346f21 | 595 | if (access(path, R_OK)) { |
a1645ce1 ZY |
596 | pr_err("Can't access file %s\n", path); |
597 | goto out; | |
598 | } | |
599 | root_dir = path; | |
600 | } | |
23346f21 | 601 | machine = machines__add(self, pid, root_dir); |
a1645ce1 ZY |
602 | } |
603 | ||
604 | out: | |
23346f21 | 605 | return machine; |
a1645ce1 ZY |
606 | } |
607 | ||
23346f21 | 608 | void machines__process(struct rb_root *self, machine__process_t process, void *data) |
a1645ce1 ZY |
609 | { |
610 | struct rb_node *nd; | |
611 | ||
23346f21 ACM |
612 | for (nd = rb_first(self); nd; nd = rb_next(nd)) { |
613 | struct machine *pos = rb_entry(nd, struct machine, rb_node); | |
a1645ce1 ZY |
614 | process(pos, data); |
615 | } | |
616 | } | |
617 | ||
48ea8f54 | 618 | char *machine__mmap_name(struct machine *self, char *bf, size_t size) |
a1645ce1 | 619 | { |
23346f21 | 620 | if (machine__is_host(self)) |
48ea8f54 | 621 | snprintf(bf, size, "[%s]", "kernel.kallsyms"); |
23346f21 | 622 | else if (machine__is_default_guest(self)) |
48ea8f54 | 623 | snprintf(bf, size, "[%s]", "guest.kernel.kallsyms"); |
a1645ce1 | 624 | else |
48ea8f54 | 625 | snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms", self->pid); |
a1645ce1 | 626 | |
48ea8f54 | 627 | return bf; |
a1645ce1 | 628 | } |