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" |
66e274f3 | 10 | |
3846df2e ACM |
11 | const char *map_type__name[MAP__NR_TYPES] = { |
12 | [MAP__FUNCTION] = "Functions", | |
13 | [MAP__VARIABLE] = "Variables", | |
14 | }; | |
15 | ||
66e274f3 FW |
16 | static inline int is_anon_memory(const char *filename) |
17 | { | |
18 | return strcmp(filename, "//anon") == 0; | |
19 | } | |
20 | ||
87ffef79 JO |
21 | static inline int is_no_dso_memory(const char *filename) |
22 | { | |
23 | return !strcmp(filename, "[stack]") || | |
24 | !strcmp(filename, "[vdso]") || | |
25 | !strcmp(filename, "[heap]"); | |
26 | } | |
27 | ||
3610583c ACM |
28 | void map__init(struct map *self, enum map_type type, |
29 | u64 start, u64 end, u64 pgoff, struct dso *dso) | |
afb7b4f0 | 30 | { |
3610583c | 31 | self->type = type; |
afb7b4f0 ACM |
32 | self->start = start; |
33 | self->end = end; | |
34 | self->pgoff = pgoff; | |
35 | self->dso = dso; | |
36 | self->map_ip = map__map_ip; | |
37 | self->unmap_ip = map__unmap_ip; | |
38 | RB_CLEAR_NODE(&self->rb_node); | |
a1645ce1 | 39 | self->groups = NULL; |
0a1eae39 | 40 | self->referenced = false; |
afb7b4f0 ACM |
41 | } |
42 | ||
a1645ce1 ZY |
43 | struct map *map__new(struct list_head *dsos__list, u64 start, u64 len, |
44 | u64 pgoff, u32 pid, char *filename, | |
361d1346 | 45 | enum map_type type) |
66e274f3 FW |
46 | { |
47 | struct map *self = malloc(sizeof(*self)); | |
48 | ||
49 | if (self != NULL) { | |
66e274f3 | 50 | char newfilename[PATH_MAX]; |
afb7b4f0 | 51 | struct dso *dso; |
87ffef79 | 52 | int anon, no_dso; |
66e274f3 | 53 | |
66e274f3 | 54 | anon = is_anon_memory(filename); |
87ffef79 | 55 | no_dso = is_no_dso_memory(filename); |
66e274f3 FW |
56 | |
57 | if (anon) { | |
b177f63f | 58 | snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid); |
66e274f3 FW |
59 | filename = newfilename; |
60 | } | |
61 | ||
a1645ce1 | 62 | dso = __dsos__findnew(dsos__list, filename); |
afb7b4f0 | 63 | if (dso == NULL) |
66e274f3 FW |
64 | goto out_delete; |
65 | ||
b177f63f | 66 | map__init(self, type, start, start + len, pgoff, dso); |
afb7b4f0 | 67 | |
87ffef79 | 68 | if (anon || no_dso) { |
ed52ce2e | 69 | self->map_ip = self->unmap_ip = identity__map_ip; |
87ffef79 JO |
70 | |
71 | /* | |
72 | * Set memory without DSO as loaded. All map__find_* | |
73 | * functions still return NULL, and we avoid the | |
74 | * unnecessary map__load warning. | |
75 | */ | |
76 | if (no_dso) | |
77 | dso__set_loaded(dso, self->type); | |
8d92c02a | 78 | } |
66e274f3 FW |
79 | } |
80 | return self; | |
81 | out_delete: | |
82 | free(self); | |
83 | return NULL; | |
84 | } | |
85 | ||
c338aee8 ACM |
86 | void map__delete(struct map *self) |
87 | { | |
88 | free(self); | |
89 | } | |
90 | ||
6a4694a4 | 91 | void map__fixup_start(struct map *self) |
c338aee8 | 92 | { |
6a4694a4 | 93 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 94 | struct rb_node *nd = rb_first(symbols); |
c338aee8 ACM |
95 | if (nd != NULL) { |
96 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
97 | self->start = sym->start; | |
98 | } | |
99 | } | |
100 | ||
6a4694a4 | 101 | void map__fixup_end(struct map *self) |
c338aee8 | 102 | { |
6a4694a4 | 103 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 104 | struct rb_node *nd = rb_last(symbols); |
c338aee8 ACM |
105 | if (nd != NULL) { |
106 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
107 | self->end = sym->end; | |
108 | } | |
109 | } | |
110 | ||
d70a5402 ACM |
111 | #define DSO__DELETED "(deleted)" |
112 | ||
9de89fe7 | 113 | int map__load(struct map *self, symbol_filter_t filter) |
66bd8424 | 114 | { |
79406cd7 | 115 | const char *name = self->dso->long_name; |
a128168d | 116 | int nr; |
79406cd7 | 117 | |
a128168d MH |
118 | if (dso__loaded(self->dso, self->type)) |
119 | return 0; | |
120 | ||
9de89fe7 | 121 | nr = dso__load(self->dso, self, filter); |
79406cd7 ACM |
122 | if (nr < 0) { |
123 | if (self->dso->has_build_id) { | |
124 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
125 | ||
126 | build_id__sprintf(self->dso->build_id, | |
127 | sizeof(self->dso->build_id), | |
128 | sbuild_id); | |
129 | pr_warning("%s with build id %s not found", | |
130 | name, sbuild_id); | |
131 | } else | |
132 | pr_warning("Failed to open %s", name); | |
133 | ||
134 | pr_warning(", continuing without symbols\n"); | |
135 | return -1; | |
136 | } else if (nr == 0) { | |
137 | const size_t len = strlen(name); | |
138 | const size_t real_len = len - sizeof(DSO__DELETED); | |
139 | ||
140 | if (len > sizeof(DSO__DELETED) && | |
141 | strcmp(name + real_len + 1, DSO__DELETED) == 0) { | |
142 | pr_warning("%.*s was updated, restart the long " | |
143 | "running apps that use it!\n", | |
144 | (int)real_len, name); | |
145 | } else { | |
146 | pr_warning("no symbols found in %s, maybe install " | |
147 | "a debug package?\n", name); | |
66bd8424 | 148 | } |
79406cd7 ACM |
149 | |
150 | return -1; | |
66bd8424 | 151 | } |
9de89fe7 ACM |
152 | /* |
153 | * Only applies to the kernel, as its symtabs aren't relative like the | |
154 | * module ones. | |
155 | */ | |
156 | if (self->dso->kernel) | |
157 | map__reloc_vmlinux(self); | |
66bd8424 | 158 | |
79406cd7 ACM |
159 | return 0; |
160 | } | |
161 | ||
9de89fe7 ACM |
162 | struct symbol *map__find_symbol(struct map *self, u64 addr, |
163 | symbol_filter_t filter) | |
79406cd7 | 164 | { |
9de89fe7 | 165 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
166 | return NULL; |
167 | ||
ea08d8cb | 168 | return dso__find_symbol(self->dso, self->type, addr); |
66bd8424 ACM |
169 | } |
170 | ||
79406cd7 ACM |
171 | struct symbol *map__find_symbol_by_name(struct map *self, const char *name, |
172 | symbol_filter_t filter) | |
173 | { | |
9de89fe7 | 174 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
175 | return NULL; |
176 | ||
177 | if (!dso__sorted_by_name(self->dso, self->type)) | |
178 | dso__sort_by_name(self->dso, self->type); | |
179 | ||
180 | return dso__find_symbol_by_name(self->dso, self->type, name); | |
181 | } | |
182 | ||
66e274f3 FW |
183 | struct map *map__clone(struct map *self) |
184 | { | |
185 | struct map *map = malloc(sizeof(*self)); | |
186 | ||
187 | if (!map) | |
188 | return NULL; | |
189 | ||
190 | memcpy(map, self, sizeof(*self)); | |
191 | ||
192 | return map; | |
193 | } | |
194 | ||
195 | int map__overlap(struct map *l, struct map *r) | |
196 | { | |
197 | if (l->start > r->start) { | |
198 | struct map *t = l; | |
199 | l = r; | |
200 | r = t; | |
201 | } | |
202 | ||
203 | if (l->end > r->start) | |
204 | return 1; | |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
209 | size_t map__fprintf(struct map *self, FILE *fp) | |
210 | { | |
9486aa38 | 211 | return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s\n", |
66e274f3 FW |
212 | self->start, self->end, self->pgoff, self->dso->name); |
213 | } | |
7a2b6209 KS |
214 | |
215 | /* | |
216 | * objdump wants/reports absolute IPs for ET_EXEC, and RIPs for ET_DYN. | |
217 | * map->dso->adjust_symbols==1 for ET_EXEC-like cases. | |
218 | */ | |
219 | u64 map__rip_2objdump(struct map *map, u64 rip) | |
220 | { | |
221 | u64 addr = map->dso->adjust_symbols ? | |
222 | map->unmap_ip(map, rip) : /* RIP -> IP */ | |
223 | rip; | |
224 | return addr; | |
225 | } | |
ee11b90b KS |
226 | |
227 | u64 map__objdump_2ip(struct map *map, u64 addr) | |
228 | { | |
229 | u64 ip = map->dso->adjust_symbols ? | |
230 | addr : | |
231 | map->unmap_ip(map, addr); /* RIP -> IP */ | |
232 | return ip; | |
233 | } | |
4b8cf846 | 234 | |
98dfd55d | 235 | void map_groups__init(struct map_groups *mg) |
c6e718ff ACM |
236 | { |
237 | int i; | |
238 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
98dfd55d ACM |
239 | mg->maps[i] = RB_ROOT; |
240 | INIT_LIST_HEAD(&mg->removed_maps[i]); | |
c6e718ff | 241 | } |
98dfd55d | 242 | mg->machine = NULL; |
c6e718ff ACM |
243 | } |
244 | ||
98dfd55d | 245 | static void maps__delete(struct rb_root *maps) |
591765fd | 246 | { |
98dfd55d | 247 | struct rb_node *next = rb_first(maps); |
591765fd ACM |
248 | |
249 | while (next) { | |
250 | struct map *pos = rb_entry(next, struct map, rb_node); | |
251 | ||
252 | next = rb_next(&pos->rb_node); | |
98dfd55d | 253 | rb_erase(&pos->rb_node, maps); |
591765fd ACM |
254 | map__delete(pos); |
255 | } | |
256 | } | |
257 | ||
98dfd55d | 258 | static void maps__delete_removed(struct list_head *maps) |
591765fd ACM |
259 | { |
260 | struct map *pos, *n; | |
261 | ||
98dfd55d | 262 | list_for_each_entry_safe(pos, n, maps, node) { |
591765fd ACM |
263 | list_del(&pos->node); |
264 | map__delete(pos); | |
265 | } | |
266 | } | |
267 | ||
98dfd55d | 268 | void map_groups__exit(struct map_groups *mg) |
591765fd ACM |
269 | { |
270 | int i; | |
271 | ||
272 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
98dfd55d ACM |
273 | maps__delete(&mg->maps[i]); |
274 | maps__delete_removed(&mg->removed_maps[i]); | |
591765fd ACM |
275 | } |
276 | } | |
277 | ||
98dfd55d | 278 | void map_groups__flush(struct map_groups *mg) |
c6e718ff ACM |
279 | { |
280 | int type; | |
281 | ||
282 | for (type = 0; type < MAP__NR_TYPES; type++) { | |
98dfd55d | 283 | struct rb_root *root = &mg->maps[type]; |
c6e718ff ACM |
284 | struct rb_node *next = rb_first(root); |
285 | ||
286 | while (next) { | |
287 | struct map *pos = rb_entry(next, struct map, rb_node); | |
288 | next = rb_next(&pos->rb_node); | |
289 | rb_erase(&pos->rb_node, root); | |
290 | /* | |
291 | * We may have references to this map, for | |
292 | * instance in some hist_entry instances, so | |
293 | * just move them to a separate list. | |
294 | */ | |
98dfd55d | 295 | list_add_tail(&pos->node, &mg->removed_maps[pos->type]); |
c6e718ff ACM |
296 | } |
297 | } | |
298 | } | |
299 | ||
98dfd55d | 300 | struct symbol *map_groups__find_symbol(struct map_groups *mg, |
4b8cf846 | 301 | enum map_type type, u64 addr, |
7e5e1b14 | 302 | struct map **mapp, |
4b8cf846 ACM |
303 | symbol_filter_t filter) |
304 | { | |
98dfd55d | 305 | struct map *map = map_groups__find(mg, type, addr); |
4b8cf846 | 306 | |
7e5e1b14 ACM |
307 | if (map != NULL) { |
308 | if (mapp != NULL) | |
309 | *mapp = map; | |
4b8cf846 | 310 | return map__find_symbol(map, map->map_ip(map, addr), filter); |
7e5e1b14 ACM |
311 | } |
312 | ||
313 | return NULL; | |
314 | } | |
315 | ||
98dfd55d | 316 | struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, |
7e5e1b14 ACM |
317 | enum map_type type, |
318 | const char *name, | |
319 | struct map **mapp, | |
320 | symbol_filter_t filter) | |
321 | { | |
322 | struct rb_node *nd; | |
323 | ||
98dfd55d | 324 | for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { |
7e5e1b14 ACM |
325 | struct map *pos = rb_entry(nd, struct map, rb_node); |
326 | struct symbol *sym = map__find_symbol_by_name(pos, name, filter); | |
327 | ||
328 | if (sym == NULL) | |
329 | continue; | |
330 | if (mapp != NULL) | |
331 | *mapp = pos; | |
332 | return sym; | |
333 | } | |
4b8cf846 ACM |
334 | |
335 | return NULL; | |
336 | } | |
337 | ||
98dfd55d | 338 | size_t __map_groups__fprintf_maps(struct map_groups *mg, |
c6e718ff ACM |
339 | enum map_type type, int verbose, FILE *fp) |
340 | { | |
341 | size_t printed = fprintf(fp, "%s:\n", map_type__name[type]); | |
342 | struct rb_node *nd; | |
343 | ||
98dfd55d | 344 | for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { |
c6e718ff ACM |
345 | struct map *pos = rb_entry(nd, struct map, rb_node); |
346 | printed += fprintf(fp, "Map:"); | |
347 | printed += map__fprintf(pos, fp); | |
348 | if (verbose > 2) { | |
349 | printed += dso__fprintf(pos->dso, type, fp); | |
350 | printed += fprintf(fp, "--\n"); | |
351 | } | |
352 | } | |
353 | ||
354 | return printed; | |
355 | } | |
356 | ||
98dfd55d | 357 | size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp) |
c6e718ff ACM |
358 | { |
359 | size_t printed = 0, i; | |
360 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
98dfd55d | 361 | printed += __map_groups__fprintf_maps(mg, i, verbose, fp); |
c6e718ff ACM |
362 | return printed; |
363 | } | |
364 | ||
98dfd55d | 365 | static size_t __map_groups__fprintf_removed_maps(struct map_groups *mg, |
c6e718ff ACM |
366 | enum map_type type, |
367 | int verbose, FILE *fp) | |
368 | { | |
369 | struct map *pos; | |
370 | size_t printed = 0; | |
371 | ||
98dfd55d | 372 | list_for_each_entry(pos, &mg->removed_maps[type], node) { |
c6e718ff ACM |
373 | printed += fprintf(fp, "Map:"); |
374 | printed += map__fprintf(pos, fp); | |
375 | if (verbose > 1) { | |
376 | printed += dso__fprintf(pos->dso, type, fp); | |
377 | printed += fprintf(fp, "--\n"); | |
378 | } | |
379 | } | |
380 | return printed; | |
381 | } | |
382 | ||
98dfd55d | 383 | static size_t map_groups__fprintf_removed_maps(struct map_groups *mg, |
c6e718ff ACM |
384 | int verbose, FILE *fp) |
385 | { | |
386 | size_t printed = 0, i; | |
387 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
98dfd55d | 388 | printed += __map_groups__fprintf_removed_maps(mg, i, verbose, fp); |
c6e718ff ACM |
389 | return printed; |
390 | } | |
391 | ||
98dfd55d | 392 | size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp) |
c6e718ff | 393 | { |
98dfd55d | 394 | size_t printed = map_groups__fprintf_maps(mg, verbose, fp); |
c6e718ff | 395 | printed += fprintf(fp, "Removed maps:\n"); |
98dfd55d | 396 | return printed + map_groups__fprintf_removed_maps(mg, verbose, fp); |
c6e718ff ACM |
397 | } |
398 | ||
98dfd55d | 399 | int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, |
c6e718ff ACM |
400 | int verbose, FILE *fp) |
401 | { | |
98dfd55d | 402 | struct rb_root *root = &mg->maps[map->type]; |
c6e718ff | 403 | struct rb_node *next = rb_first(root); |
0a1eae39 | 404 | int err = 0; |
c6e718ff ACM |
405 | |
406 | while (next) { | |
407 | struct map *pos = rb_entry(next, struct map, rb_node); | |
408 | next = rb_next(&pos->rb_node); | |
409 | ||
410 | if (!map__overlap(pos, map)) | |
411 | continue; | |
412 | ||
413 | if (verbose >= 2) { | |
414 | fputs("overlapping maps:\n", fp); | |
415 | map__fprintf(map, fp); | |
416 | map__fprintf(pos, fp); | |
417 | } | |
418 | ||
419 | rb_erase(&pos->rb_node, root); | |
c6e718ff ACM |
420 | /* |
421 | * Now check if we need to create new maps for areas not | |
422 | * overlapped by the new map: | |
423 | */ | |
424 | if (map->start > pos->start) { | |
425 | struct map *before = map__clone(pos); | |
426 | ||
0a1eae39 ACM |
427 | if (before == NULL) { |
428 | err = -ENOMEM; | |
429 | goto move_map; | |
430 | } | |
c6e718ff ACM |
431 | |
432 | before->end = map->start - 1; | |
98dfd55d | 433 | map_groups__insert(mg, before); |
c6e718ff ACM |
434 | if (verbose >= 2) |
435 | map__fprintf(before, fp); | |
436 | } | |
437 | ||
438 | if (map->end < pos->end) { | |
439 | struct map *after = map__clone(pos); | |
440 | ||
0a1eae39 ACM |
441 | if (after == NULL) { |
442 | err = -ENOMEM; | |
443 | goto move_map; | |
444 | } | |
c6e718ff ACM |
445 | |
446 | after->start = map->end + 1; | |
98dfd55d | 447 | map_groups__insert(mg, after); |
c6e718ff ACM |
448 | if (verbose >= 2) |
449 | map__fprintf(after, fp); | |
450 | } | |
0a1eae39 ACM |
451 | move_map: |
452 | /* | |
453 | * If we have references, just move them to a separate list. | |
454 | */ | |
455 | if (pos->referenced) | |
98dfd55d | 456 | list_add_tail(&pos->node, &mg->removed_maps[map->type]); |
0a1eae39 ACM |
457 | else |
458 | map__delete(pos); | |
459 | ||
460 | if (err) | |
461 | return err; | |
c6e718ff ACM |
462 | } |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | /* | |
468 | * XXX This should not really _copy_ te maps, but refcount them. | |
469 | */ | |
98dfd55d | 470 | int map_groups__clone(struct map_groups *mg, |
c6e718ff ACM |
471 | struct map_groups *parent, enum map_type type) |
472 | { | |
473 | struct rb_node *nd; | |
474 | for (nd = rb_first(&parent->maps[type]); nd; nd = rb_next(nd)) { | |
475 | struct map *map = rb_entry(nd, struct map, rb_node); | |
476 | struct map *new = map__clone(map); | |
477 | if (new == NULL) | |
478 | return -ENOMEM; | |
98dfd55d | 479 | map_groups__insert(mg, new); |
c6e718ff ACM |
480 | } |
481 | return 0; | |
482 | } | |
483 | ||
4b8cf846 ACM |
484 | static u64 map__reloc_map_ip(struct map *map, u64 ip) |
485 | { | |
486 | return ip + (s64)map->pgoff; | |
487 | } | |
488 | ||
489 | static u64 map__reloc_unmap_ip(struct map *map, u64 ip) | |
490 | { | |
491 | return ip - (s64)map->pgoff; | |
492 | } | |
493 | ||
494 | void map__reloc_vmlinux(struct map *self) | |
495 | { | |
496 | struct kmap *kmap = map__kmap(self); | |
497 | s64 reloc; | |
498 | ||
499 | if (!kmap->ref_reloc_sym || !kmap->ref_reloc_sym->unrelocated_addr) | |
500 | return; | |
501 | ||
502 | reloc = (kmap->ref_reloc_sym->unrelocated_addr - | |
503 | kmap->ref_reloc_sym->addr); | |
504 | ||
505 | if (!reloc) | |
506 | return; | |
507 | ||
508 | self->map_ip = map__reloc_map_ip; | |
509 | self->unmap_ip = map__reloc_unmap_ip; | |
510 | self->pgoff = reloc; | |
511 | } | |
512 | ||
513 | void maps__insert(struct rb_root *maps, struct map *map) | |
514 | { | |
515 | struct rb_node **p = &maps->rb_node; | |
516 | struct rb_node *parent = NULL; | |
517 | const u64 ip = map->start; | |
518 | struct map *m; | |
519 | ||
520 | while (*p != NULL) { | |
521 | parent = *p; | |
522 | m = rb_entry(parent, struct map, rb_node); | |
523 | if (ip < m->start) | |
524 | p = &(*p)->rb_left; | |
525 | else | |
526 | p = &(*p)->rb_right; | |
527 | } | |
528 | ||
529 | rb_link_node(&map->rb_node, parent, p); | |
530 | rb_insert_color(&map->rb_node, maps); | |
531 | } | |
532 | ||
076c6e45 ACM |
533 | void maps__remove(struct rb_root *self, struct map *map) |
534 | { | |
535 | rb_erase(&map->rb_node, self); | |
536 | } | |
537 | ||
4b8cf846 ACM |
538 | struct map *maps__find(struct rb_root *maps, u64 ip) |
539 | { | |
540 | struct rb_node **p = &maps->rb_node; | |
541 | struct rb_node *parent = NULL; | |
542 | struct map *m; | |
543 | ||
544 | while (*p != NULL) { | |
545 | parent = *p; | |
546 | m = rb_entry(parent, struct map, rb_node); | |
547 | if (ip < m->start) | |
548 | p = &(*p)->rb_left; | |
549 | else if (ip > m->end) | |
550 | p = &(*p)->rb_right; | |
551 | else | |
552 | return m; | |
553 | } | |
554 | ||
555 | return NULL; | |
556 | } | |
a1645ce1 | 557 | |
d28c6223 ACM |
558 | int machine__init(struct machine *self, const char *root_dir, pid_t pid) |
559 | { | |
560 | map_groups__init(&self->kmaps); | |
561 | RB_CLEAR_NODE(&self->rb_node); | |
562 | INIT_LIST_HEAD(&self->user_dsos); | |
563 | INIT_LIST_HEAD(&self->kernel_dsos); | |
564 | ||
565 | self->kmaps.machine = self; | |
566 | self->pid = pid; | |
567 | self->root_dir = strdup(root_dir); | |
568 | return self->root_dir == NULL ? -ENOMEM : 0; | |
569 | } | |
570 | ||
d65a458b ACM |
571 | static void dsos__delete(struct list_head *self) |
572 | { | |
573 | struct dso *pos, *n; | |
574 | ||
575 | list_for_each_entry_safe(pos, n, self, node) { | |
576 | list_del(&pos->node); | |
577 | dso__delete(pos); | |
578 | } | |
579 | } | |
580 | ||
581 | void machine__exit(struct machine *self) | |
582 | { | |
d65a458b ACM |
583 | map_groups__exit(&self->kmaps); |
584 | dsos__delete(&self->user_dsos); | |
585 | dsos__delete(&self->kernel_dsos); | |
586 | free(self->root_dir); | |
587 | self->root_dir = NULL; | |
588 | } | |
589 | ||
076c6e45 ACM |
590 | void machine__delete(struct machine *self) |
591 | { | |
592 | machine__exit(self); | |
593 | free(self); | |
594 | } | |
595 | ||
23346f21 ACM |
596 | struct machine *machines__add(struct rb_root *self, pid_t pid, |
597 | const char *root_dir) | |
a1645ce1 | 598 | { |
23346f21 | 599 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 600 | struct rb_node *parent = NULL; |
23346f21 | 601 | struct machine *pos, *machine = malloc(sizeof(*machine)); |
a1645ce1 | 602 | |
23346f21 | 603 | if (!machine) |
a1645ce1 ZY |
604 | return NULL; |
605 | ||
d28c6223 ACM |
606 | if (machine__init(machine, root_dir, pid) != 0) { |
607 | free(machine); | |
608 | return NULL; | |
609 | } | |
a1645ce1 ZY |
610 | |
611 | while (*p != NULL) { | |
612 | parent = *p; | |
23346f21 | 613 | pos = rb_entry(parent, struct machine, rb_node); |
a1645ce1 ZY |
614 | if (pid < pos->pid) |
615 | p = &(*p)->rb_left; | |
616 | else | |
617 | p = &(*p)->rb_right; | |
618 | } | |
619 | ||
23346f21 ACM |
620 | rb_link_node(&machine->rb_node, parent, p); |
621 | rb_insert_color(&machine->rb_node, self); | |
a1645ce1 | 622 | |
23346f21 | 623 | return machine; |
a1645ce1 ZY |
624 | } |
625 | ||
23346f21 | 626 | struct machine *machines__find(struct rb_root *self, pid_t pid) |
a1645ce1 | 627 | { |
23346f21 | 628 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 629 | struct rb_node *parent = NULL; |
23346f21 ACM |
630 | struct machine *machine; |
631 | struct machine *default_machine = NULL; | |
a1645ce1 ZY |
632 | |
633 | while (*p != NULL) { | |
634 | parent = *p; | |
23346f21 ACM |
635 | machine = rb_entry(parent, struct machine, rb_node); |
636 | if (pid < machine->pid) | |
a1645ce1 | 637 | p = &(*p)->rb_left; |
23346f21 | 638 | else if (pid > machine->pid) |
a1645ce1 ZY |
639 | p = &(*p)->rb_right; |
640 | else | |
23346f21 ACM |
641 | return machine; |
642 | if (!machine->pid) | |
643 | default_machine = machine; | |
a1645ce1 ZY |
644 | } |
645 | ||
23346f21 | 646 | return default_machine; |
a1645ce1 ZY |
647 | } |
648 | ||
23346f21 | 649 | struct machine *machines__findnew(struct rb_root *self, pid_t pid) |
a1645ce1 ZY |
650 | { |
651 | char path[PATH_MAX]; | |
652 | const char *root_dir; | |
23346f21 | 653 | struct machine *machine = machines__find(self, pid); |
a1645ce1 | 654 | |
23346f21 | 655 | if (!machine || machine->pid != pid) { |
a1645ce1 ZY |
656 | if (pid == HOST_KERNEL_ID || pid == DEFAULT_GUEST_KERNEL_ID) |
657 | root_dir = ""; | |
658 | else { | |
659 | if (!symbol_conf.guestmount) | |
660 | goto out; | |
661 | sprintf(path, "%s/%d", symbol_conf.guestmount, pid); | |
23346f21 | 662 | if (access(path, R_OK)) { |
a1645ce1 ZY |
663 | pr_err("Can't access file %s\n", path); |
664 | goto out; | |
665 | } | |
666 | root_dir = path; | |
667 | } | |
23346f21 | 668 | machine = machines__add(self, pid, root_dir); |
a1645ce1 ZY |
669 | } |
670 | ||
671 | out: | |
23346f21 | 672 | return machine; |
a1645ce1 ZY |
673 | } |
674 | ||
23346f21 | 675 | void machines__process(struct rb_root *self, machine__process_t process, void *data) |
a1645ce1 ZY |
676 | { |
677 | struct rb_node *nd; | |
678 | ||
23346f21 ACM |
679 | for (nd = rb_first(self); nd; nd = rb_next(nd)) { |
680 | struct machine *pos = rb_entry(nd, struct machine, rb_node); | |
a1645ce1 ZY |
681 | process(pos, data); |
682 | } | |
683 | } | |
684 | ||
48ea8f54 | 685 | char *machine__mmap_name(struct machine *self, char *bf, size_t size) |
a1645ce1 | 686 | { |
23346f21 | 687 | if (machine__is_host(self)) |
48ea8f54 | 688 | snprintf(bf, size, "[%s]", "kernel.kallsyms"); |
23346f21 | 689 | else if (machine__is_default_guest(self)) |
48ea8f54 | 690 | snprintf(bf, size, "[%s]", "guest.kernel.kallsyms"); |
a1645ce1 | 691 | else |
48ea8f54 | 692 | snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms", self->pid); |
a1645ce1 | 693 | |
48ea8f54 | 694 | return bf; |
a1645ce1 | 695 | } |