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; |
31d68e7b | 41 | self->erange_warned = false; |
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, | |
361d1346 | 46 | enum map_type type) |
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; |
87ffef79 | 53 | int anon, no_dso; |
66e274f3 | 54 | |
66e274f3 | 55 | anon = is_anon_memory(filename); |
87ffef79 | 56 | no_dso = is_no_dso_memory(filename); |
66e274f3 FW |
57 | |
58 | if (anon) { | |
b177f63f | 59 | snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid); |
66e274f3 FW |
60 | filename = newfilename; |
61 | } | |
62 | ||
a1645ce1 | 63 | dso = __dsos__findnew(dsos__list, filename); |
afb7b4f0 | 64 | if (dso == NULL) |
66e274f3 FW |
65 | goto out_delete; |
66 | ||
b177f63f | 67 | map__init(self, type, start, start + len, pgoff, dso); |
afb7b4f0 | 68 | |
87ffef79 | 69 | if (anon || no_dso) { |
ed52ce2e | 70 | self->map_ip = self->unmap_ip = identity__map_ip; |
87ffef79 JO |
71 | |
72 | /* | |
73 | * Set memory without DSO as loaded. All map__find_* | |
74 | * functions still return NULL, and we avoid the | |
75 | * unnecessary map__load warning. | |
76 | */ | |
77 | if (no_dso) | |
78 | dso__set_loaded(dso, self->type); | |
8d92c02a | 79 | } |
66e274f3 FW |
80 | } |
81 | return self; | |
82 | out_delete: | |
83 | free(self); | |
84 | return NULL; | |
85 | } | |
86 | ||
c338aee8 ACM |
87 | void map__delete(struct map *self) |
88 | { | |
89 | free(self); | |
90 | } | |
91 | ||
6a4694a4 | 92 | void map__fixup_start(struct map *self) |
c338aee8 | 93 | { |
6a4694a4 | 94 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 95 | struct rb_node *nd = rb_first(symbols); |
c338aee8 ACM |
96 | if (nd != NULL) { |
97 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
98 | self->start = sym->start; | |
99 | } | |
100 | } | |
101 | ||
6a4694a4 | 102 | void map__fixup_end(struct map *self) |
c338aee8 | 103 | { |
6a4694a4 | 104 | struct rb_root *symbols = &self->dso->symbols[self->type]; |
fcf1203a | 105 | struct rb_node *nd = rb_last(symbols); |
c338aee8 ACM |
106 | if (nd != NULL) { |
107 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
108 | self->end = sym->end; | |
109 | } | |
110 | } | |
111 | ||
d70a5402 ACM |
112 | #define DSO__DELETED "(deleted)" |
113 | ||
9de89fe7 | 114 | int map__load(struct map *self, symbol_filter_t filter) |
66bd8424 | 115 | { |
79406cd7 | 116 | const char *name = self->dso->long_name; |
a128168d | 117 | int nr; |
79406cd7 | 118 | |
a128168d MH |
119 | if (dso__loaded(self->dso, self->type)) |
120 | return 0; | |
121 | ||
9de89fe7 | 122 | nr = dso__load(self->dso, self, filter); |
79406cd7 ACM |
123 | if (nr < 0) { |
124 | if (self->dso->has_build_id) { | |
125 | char sbuild_id[BUILD_ID_SIZE * 2 + 1]; | |
126 | ||
127 | build_id__sprintf(self->dso->build_id, | |
128 | sizeof(self->dso->build_id), | |
129 | sbuild_id); | |
130 | pr_warning("%s with build id %s not found", | |
131 | name, sbuild_id); | |
132 | } else | |
133 | pr_warning("Failed to open %s", name); | |
134 | ||
135 | pr_warning(", continuing without symbols\n"); | |
136 | return -1; | |
137 | } else if (nr == 0) { | |
138 | const size_t len = strlen(name); | |
139 | const size_t real_len = len - sizeof(DSO__DELETED); | |
140 | ||
141 | if (len > sizeof(DSO__DELETED) && | |
142 | strcmp(name + real_len + 1, DSO__DELETED) == 0) { | |
e77b15bd DA |
143 | pr_warning("%.*s was updated (is prelink enabled?). " |
144 | "Restart the long running apps that use it!\n", | |
79406cd7 ACM |
145 | (int)real_len, name); |
146 | } else { | |
147 | pr_warning("no symbols found in %s, maybe install " | |
148 | "a debug package?\n", name); | |
66bd8424 | 149 | } |
79406cd7 ACM |
150 | |
151 | return -1; | |
66bd8424 | 152 | } |
9de89fe7 ACM |
153 | /* |
154 | * Only applies to the kernel, as its symtabs aren't relative like the | |
155 | * module ones. | |
156 | */ | |
157 | if (self->dso->kernel) | |
158 | map__reloc_vmlinux(self); | |
66bd8424 | 159 | |
79406cd7 ACM |
160 | return 0; |
161 | } | |
162 | ||
9de89fe7 ACM |
163 | struct symbol *map__find_symbol(struct map *self, u64 addr, |
164 | symbol_filter_t filter) | |
79406cd7 | 165 | { |
9de89fe7 | 166 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
167 | return NULL; |
168 | ||
ea08d8cb | 169 | return dso__find_symbol(self->dso, self->type, addr); |
66bd8424 ACM |
170 | } |
171 | ||
79406cd7 ACM |
172 | struct symbol *map__find_symbol_by_name(struct map *self, const char *name, |
173 | symbol_filter_t filter) | |
174 | { | |
9de89fe7 | 175 | if (map__load(self, filter) < 0) |
79406cd7 ACM |
176 | return NULL; |
177 | ||
178 | if (!dso__sorted_by_name(self->dso, self->type)) | |
179 | dso__sort_by_name(self->dso, self->type); | |
180 | ||
181 | return dso__find_symbol_by_name(self->dso, self->type, name); | |
182 | } | |
183 | ||
66e274f3 FW |
184 | struct map *map__clone(struct map *self) |
185 | { | |
186 | struct map *map = malloc(sizeof(*self)); | |
187 | ||
188 | if (!map) | |
189 | return NULL; | |
190 | ||
191 | memcpy(map, self, sizeof(*self)); | |
192 | ||
193 | return map; | |
194 | } | |
195 | ||
196 | int map__overlap(struct map *l, struct map *r) | |
197 | { | |
198 | if (l->start > r->start) { | |
199 | struct map *t = l; | |
200 | l = r; | |
201 | r = t; | |
202 | } | |
203 | ||
204 | if (l->end > r->start) | |
205 | return 1; | |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
210 | size_t map__fprintf(struct map *self, FILE *fp) | |
211 | { | |
9486aa38 | 212 | return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %" PRIx64 " %s\n", |
66e274f3 FW |
213 | self->start, self->end, self->pgoff, self->dso->name); |
214 | } | |
7a2b6209 | 215 | |
547a92e0 AN |
216 | size_t map__fprintf_dsoname(struct map *map, FILE *fp) |
217 | { | |
218 | const char *dsoname; | |
219 | ||
0bc8d205 AN |
220 | if (map && map->dso && (map->dso->name || map->dso->long_name)) { |
221 | if (symbol_conf.show_kernel_path && map->dso->long_name) | |
222 | dsoname = map->dso->long_name; | |
223 | else if (map->dso->name) | |
224 | dsoname = map->dso->name; | |
225 | } else | |
547a92e0 AN |
226 | dsoname = "[unknown]"; |
227 | ||
228 | return fprintf(fp, "%s", dsoname); | |
229 | } | |
230 | ||
7a2b6209 KS |
231 | /* |
232 | * objdump wants/reports absolute IPs for ET_EXEC, and RIPs for ET_DYN. | |
233 | * map->dso->adjust_symbols==1 for ET_EXEC-like cases. | |
234 | */ | |
235 | u64 map__rip_2objdump(struct map *map, u64 rip) | |
236 | { | |
237 | u64 addr = map->dso->adjust_symbols ? | |
238 | map->unmap_ip(map, rip) : /* RIP -> IP */ | |
239 | rip; | |
240 | return addr; | |
241 | } | |
ee11b90b KS |
242 | |
243 | u64 map__objdump_2ip(struct map *map, u64 addr) | |
244 | { | |
245 | u64 ip = map->dso->adjust_symbols ? | |
246 | addr : | |
247 | map->unmap_ip(map, addr); /* RIP -> IP */ | |
248 | return ip; | |
249 | } | |
4b8cf846 | 250 | |
98dfd55d | 251 | void map_groups__init(struct map_groups *mg) |
c6e718ff ACM |
252 | { |
253 | int i; | |
254 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
98dfd55d ACM |
255 | mg->maps[i] = RB_ROOT; |
256 | INIT_LIST_HEAD(&mg->removed_maps[i]); | |
c6e718ff | 257 | } |
98dfd55d | 258 | mg->machine = NULL; |
c6e718ff ACM |
259 | } |
260 | ||
98dfd55d | 261 | static void maps__delete(struct rb_root *maps) |
591765fd | 262 | { |
98dfd55d | 263 | struct rb_node *next = rb_first(maps); |
591765fd ACM |
264 | |
265 | while (next) { | |
266 | struct map *pos = rb_entry(next, struct map, rb_node); | |
267 | ||
268 | next = rb_next(&pos->rb_node); | |
98dfd55d | 269 | rb_erase(&pos->rb_node, maps); |
591765fd ACM |
270 | map__delete(pos); |
271 | } | |
272 | } | |
273 | ||
98dfd55d | 274 | static void maps__delete_removed(struct list_head *maps) |
591765fd ACM |
275 | { |
276 | struct map *pos, *n; | |
277 | ||
98dfd55d | 278 | list_for_each_entry_safe(pos, n, maps, node) { |
591765fd ACM |
279 | list_del(&pos->node); |
280 | map__delete(pos); | |
281 | } | |
282 | } | |
283 | ||
98dfd55d | 284 | void map_groups__exit(struct map_groups *mg) |
591765fd ACM |
285 | { |
286 | int i; | |
287 | ||
288 | for (i = 0; i < MAP__NR_TYPES; ++i) { | |
98dfd55d ACM |
289 | maps__delete(&mg->maps[i]); |
290 | maps__delete_removed(&mg->removed_maps[i]); | |
591765fd ACM |
291 | } |
292 | } | |
293 | ||
98dfd55d | 294 | void map_groups__flush(struct map_groups *mg) |
c6e718ff ACM |
295 | { |
296 | int type; | |
297 | ||
298 | for (type = 0; type < MAP__NR_TYPES; type++) { | |
98dfd55d | 299 | struct rb_root *root = &mg->maps[type]; |
c6e718ff ACM |
300 | struct rb_node *next = rb_first(root); |
301 | ||
302 | while (next) { | |
303 | struct map *pos = rb_entry(next, struct map, rb_node); | |
304 | next = rb_next(&pos->rb_node); | |
305 | rb_erase(&pos->rb_node, root); | |
306 | /* | |
307 | * We may have references to this map, for | |
308 | * instance in some hist_entry instances, so | |
309 | * just move them to a separate list. | |
310 | */ | |
98dfd55d | 311 | list_add_tail(&pos->node, &mg->removed_maps[pos->type]); |
c6e718ff ACM |
312 | } |
313 | } | |
314 | } | |
315 | ||
98dfd55d | 316 | struct symbol *map_groups__find_symbol(struct map_groups *mg, |
4b8cf846 | 317 | enum map_type type, u64 addr, |
7e5e1b14 | 318 | struct map **mapp, |
4b8cf846 ACM |
319 | symbol_filter_t filter) |
320 | { | |
98dfd55d | 321 | struct map *map = map_groups__find(mg, type, addr); |
4b8cf846 | 322 | |
7e5e1b14 ACM |
323 | if (map != NULL) { |
324 | if (mapp != NULL) | |
325 | *mapp = map; | |
4b8cf846 | 326 | return map__find_symbol(map, map->map_ip(map, addr), filter); |
7e5e1b14 ACM |
327 | } |
328 | ||
329 | return NULL; | |
330 | } | |
331 | ||
98dfd55d | 332 | struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, |
7e5e1b14 ACM |
333 | enum map_type type, |
334 | const char *name, | |
335 | struct map **mapp, | |
336 | symbol_filter_t filter) | |
337 | { | |
338 | struct rb_node *nd; | |
339 | ||
98dfd55d | 340 | for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { |
7e5e1b14 ACM |
341 | struct map *pos = rb_entry(nd, struct map, rb_node); |
342 | struct symbol *sym = map__find_symbol_by_name(pos, name, filter); | |
343 | ||
344 | if (sym == NULL) | |
345 | continue; | |
346 | if (mapp != NULL) | |
347 | *mapp = pos; | |
348 | return sym; | |
349 | } | |
4b8cf846 ACM |
350 | |
351 | return NULL; | |
352 | } | |
353 | ||
98dfd55d | 354 | size_t __map_groups__fprintf_maps(struct map_groups *mg, |
c6e718ff ACM |
355 | enum map_type type, int verbose, FILE *fp) |
356 | { | |
357 | size_t printed = fprintf(fp, "%s:\n", map_type__name[type]); | |
358 | struct rb_node *nd; | |
359 | ||
98dfd55d | 360 | for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { |
c6e718ff ACM |
361 | struct map *pos = rb_entry(nd, struct map, rb_node); |
362 | printed += fprintf(fp, "Map:"); | |
363 | printed += map__fprintf(pos, fp); | |
364 | if (verbose > 2) { | |
365 | printed += dso__fprintf(pos->dso, type, fp); | |
366 | printed += fprintf(fp, "--\n"); | |
367 | } | |
368 | } | |
369 | ||
370 | return printed; | |
371 | } | |
372 | ||
98dfd55d | 373 | size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp) |
c6e718ff ACM |
374 | { |
375 | size_t printed = 0, i; | |
376 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
98dfd55d | 377 | printed += __map_groups__fprintf_maps(mg, i, verbose, fp); |
c6e718ff ACM |
378 | return printed; |
379 | } | |
380 | ||
98dfd55d | 381 | static size_t __map_groups__fprintf_removed_maps(struct map_groups *mg, |
c6e718ff ACM |
382 | enum map_type type, |
383 | int verbose, FILE *fp) | |
384 | { | |
385 | struct map *pos; | |
386 | size_t printed = 0; | |
387 | ||
98dfd55d | 388 | list_for_each_entry(pos, &mg->removed_maps[type], node) { |
c6e718ff ACM |
389 | printed += fprintf(fp, "Map:"); |
390 | printed += map__fprintf(pos, fp); | |
391 | if (verbose > 1) { | |
392 | printed += dso__fprintf(pos->dso, type, fp); | |
393 | printed += fprintf(fp, "--\n"); | |
394 | } | |
395 | } | |
396 | return printed; | |
397 | } | |
398 | ||
98dfd55d | 399 | static size_t map_groups__fprintf_removed_maps(struct map_groups *mg, |
c6e718ff ACM |
400 | int verbose, FILE *fp) |
401 | { | |
402 | size_t printed = 0, i; | |
403 | for (i = 0; i < MAP__NR_TYPES; ++i) | |
98dfd55d | 404 | printed += __map_groups__fprintf_removed_maps(mg, i, verbose, fp); |
c6e718ff ACM |
405 | return printed; |
406 | } | |
407 | ||
98dfd55d | 408 | size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp) |
c6e718ff | 409 | { |
98dfd55d | 410 | size_t printed = map_groups__fprintf_maps(mg, verbose, fp); |
c6e718ff | 411 | printed += fprintf(fp, "Removed maps:\n"); |
98dfd55d | 412 | return printed + map_groups__fprintf_removed_maps(mg, verbose, fp); |
c6e718ff ACM |
413 | } |
414 | ||
98dfd55d | 415 | int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map, |
c6e718ff ACM |
416 | int verbose, FILE *fp) |
417 | { | |
98dfd55d | 418 | struct rb_root *root = &mg->maps[map->type]; |
c6e718ff | 419 | struct rb_node *next = rb_first(root); |
0a1eae39 | 420 | int err = 0; |
c6e718ff ACM |
421 | |
422 | while (next) { | |
423 | struct map *pos = rb_entry(next, struct map, rb_node); | |
424 | next = rb_next(&pos->rb_node); | |
425 | ||
426 | if (!map__overlap(pos, map)) | |
427 | continue; | |
428 | ||
429 | if (verbose >= 2) { | |
430 | fputs("overlapping maps:\n", fp); | |
431 | map__fprintf(map, fp); | |
432 | map__fprintf(pos, fp); | |
433 | } | |
434 | ||
435 | rb_erase(&pos->rb_node, root); | |
c6e718ff ACM |
436 | /* |
437 | * Now check if we need to create new maps for areas not | |
438 | * overlapped by the new map: | |
439 | */ | |
440 | if (map->start > pos->start) { | |
441 | struct map *before = map__clone(pos); | |
442 | ||
0a1eae39 ACM |
443 | if (before == NULL) { |
444 | err = -ENOMEM; | |
445 | goto move_map; | |
446 | } | |
c6e718ff ACM |
447 | |
448 | before->end = map->start - 1; | |
98dfd55d | 449 | map_groups__insert(mg, before); |
c6e718ff ACM |
450 | if (verbose >= 2) |
451 | map__fprintf(before, fp); | |
452 | } | |
453 | ||
454 | if (map->end < pos->end) { | |
455 | struct map *after = map__clone(pos); | |
456 | ||
0a1eae39 ACM |
457 | if (after == NULL) { |
458 | err = -ENOMEM; | |
459 | goto move_map; | |
460 | } | |
c6e718ff ACM |
461 | |
462 | after->start = map->end + 1; | |
98dfd55d | 463 | map_groups__insert(mg, after); |
c6e718ff ACM |
464 | if (verbose >= 2) |
465 | map__fprintf(after, fp); | |
466 | } | |
0a1eae39 ACM |
467 | move_map: |
468 | /* | |
469 | * If we have references, just move them to a separate list. | |
470 | */ | |
471 | if (pos->referenced) | |
98dfd55d | 472 | list_add_tail(&pos->node, &mg->removed_maps[map->type]); |
0a1eae39 ACM |
473 | else |
474 | map__delete(pos); | |
475 | ||
476 | if (err) | |
477 | return err; | |
c6e718ff ACM |
478 | } |
479 | ||
480 | return 0; | |
481 | } | |
482 | ||
483 | /* | |
484 | * XXX This should not really _copy_ te maps, but refcount them. | |
485 | */ | |
98dfd55d | 486 | int map_groups__clone(struct map_groups *mg, |
c6e718ff ACM |
487 | struct map_groups *parent, enum map_type type) |
488 | { | |
489 | struct rb_node *nd; | |
490 | for (nd = rb_first(&parent->maps[type]); nd; nd = rb_next(nd)) { | |
491 | struct map *map = rb_entry(nd, struct map, rb_node); | |
492 | struct map *new = map__clone(map); | |
493 | if (new == NULL) | |
494 | return -ENOMEM; | |
98dfd55d | 495 | map_groups__insert(mg, new); |
c6e718ff ACM |
496 | } |
497 | return 0; | |
498 | } | |
499 | ||
4b8cf846 ACM |
500 | static u64 map__reloc_map_ip(struct map *map, u64 ip) |
501 | { | |
502 | return ip + (s64)map->pgoff; | |
503 | } | |
504 | ||
505 | static u64 map__reloc_unmap_ip(struct map *map, u64 ip) | |
506 | { | |
507 | return ip - (s64)map->pgoff; | |
508 | } | |
509 | ||
510 | void map__reloc_vmlinux(struct map *self) | |
511 | { | |
512 | struct kmap *kmap = map__kmap(self); | |
513 | s64 reloc; | |
514 | ||
515 | if (!kmap->ref_reloc_sym || !kmap->ref_reloc_sym->unrelocated_addr) | |
516 | return; | |
517 | ||
518 | reloc = (kmap->ref_reloc_sym->unrelocated_addr - | |
519 | kmap->ref_reloc_sym->addr); | |
520 | ||
521 | if (!reloc) | |
522 | return; | |
523 | ||
524 | self->map_ip = map__reloc_map_ip; | |
525 | self->unmap_ip = map__reloc_unmap_ip; | |
526 | self->pgoff = reloc; | |
527 | } | |
528 | ||
529 | void maps__insert(struct rb_root *maps, struct map *map) | |
530 | { | |
531 | struct rb_node **p = &maps->rb_node; | |
532 | struct rb_node *parent = NULL; | |
533 | const u64 ip = map->start; | |
534 | struct map *m; | |
535 | ||
536 | while (*p != NULL) { | |
537 | parent = *p; | |
538 | m = rb_entry(parent, struct map, rb_node); | |
539 | if (ip < m->start) | |
540 | p = &(*p)->rb_left; | |
541 | else | |
542 | p = &(*p)->rb_right; | |
543 | } | |
544 | ||
545 | rb_link_node(&map->rb_node, parent, p); | |
546 | rb_insert_color(&map->rb_node, maps); | |
547 | } | |
548 | ||
076c6e45 ACM |
549 | void maps__remove(struct rb_root *self, struct map *map) |
550 | { | |
551 | rb_erase(&map->rb_node, self); | |
552 | } | |
553 | ||
4b8cf846 ACM |
554 | struct map *maps__find(struct rb_root *maps, u64 ip) |
555 | { | |
556 | struct rb_node **p = &maps->rb_node; | |
557 | struct rb_node *parent = NULL; | |
558 | struct map *m; | |
559 | ||
560 | while (*p != NULL) { | |
561 | parent = *p; | |
562 | m = rb_entry(parent, struct map, rb_node); | |
563 | if (ip < m->start) | |
564 | p = &(*p)->rb_left; | |
565 | else if (ip > m->end) | |
566 | p = &(*p)->rb_right; | |
567 | else | |
568 | return m; | |
569 | } | |
570 | ||
571 | return NULL; | |
572 | } | |
a1645ce1 | 573 | |
d28c6223 ACM |
574 | int machine__init(struct machine *self, const char *root_dir, pid_t pid) |
575 | { | |
576 | map_groups__init(&self->kmaps); | |
577 | RB_CLEAR_NODE(&self->rb_node); | |
578 | INIT_LIST_HEAD(&self->user_dsos); | |
579 | INIT_LIST_HEAD(&self->kernel_dsos); | |
580 | ||
b424eba2 ACM |
581 | self->threads = RB_ROOT; |
582 | INIT_LIST_HEAD(&self->dead_threads); | |
583 | self->last_match = NULL; | |
584 | ||
d28c6223 ACM |
585 | self->kmaps.machine = self; |
586 | self->pid = pid; | |
587 | self->root_dir = strdup(root_dir); | |
588 | return self->root_dir == NULL ? -ENOMEM : 0; | |
589 | } | |
590 | ||
d65a458b ACM |
591 | static void dsos__delete(struct list_head *self) |
592 | { | |
593 | struct dso *pos, *n; | |
594 | ||
595 | list_for_each_entry_safe(pos, n, self, node) { | |
596 | list_del(&pos->node); | |
597 | dso__delete(pos); | |
598 | } | |
599 | } | |
600 | ||
601 | void machine__exit(struct machine *self) | |
602 | { | |
d65a458b ACM |
603 | map_groups__exit(&self->kmaps); |
604 | dsos__delete(&self->user_dsos); | |
605 | dsos__delete(&self->kernel_dsos); | |
606 | free(self->root_dir); | |
607 | self->root_dir = NULL; | |
608 | } | |
609 | ||
076c6e45 ACM |
610 | void machine__delete(struct machine *self) |
611 | { | |
612 | machine__exit(self); | |
613 | free(self); | |
614 | } | |
615 | ||
23346f21 ACM |
616 | struct machine *machines__add(struct rb_root *self, pid_t pid, |
617 | const char *root_dir) | |
a1645ce1 | 618 | { |
23346f21 | 619 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 620 | struct rb_node *parent = NULL; |
23346f21 | 621 | struct machine *pos, *machine = malloc(sizeof(*machine)); |
a1645ce1 | 622 | |
23346f21 | 623 | if (!machine) |
a1645ce1 ZY |
624 | return NULL; |
625 | ||
d28c6223 ACM |
626 | if (machine__init(machine, root_dir, pid) != 0) { |
627 | free(machine); | |
628 | return NULL; | |
629 | } | |
a1645ce1 ZY |
630 | |
631 | while (*p != NULL) { | |
632 | parent = *p; | |
23346f21 | 633 | pos = rb_entry(parent, struct machine, rb_node); |
a1645ce1 ZY |
634 | if (pid < pos->pid) |
635 | p = &(*p)->rb_left; | |
636 | else | |
637 | p = &(*p)->rb_right; | |
638 | } | |
639 | ||
23346f21 ACM |
640 | rb_link_node(&machine->rb_node, parent, p); |
641 | rb_insert_color(&machine->rb_node, self); | |
a1645ce1 | 642 | |
23346f21 | 643 | return machine; |
a1645ce1 ZY |
644 | } |
645 | ||
23346f21 | 646 | struct machine *machines__find(struct rb_root *self, pid_t pid) |
a1645ce1 | 647 | { |
23346f21 | 648 | struct rb_node **p = &self->rb_node; |
a1645ce1 | 649 | struct rb_node *parent = NULL; |
23346f21 ACM |
650 | struct machine *machine; |
651 | struct machine *default_machine = NULL; | |
a1645ce1 ZY |
652 | |
653 | while (*p != NULL) { | |
654 | parent = *p; | |
23346f21 ACM |
655 | machine = rb_entry(parent, struct machine, rb_node); |
656 | if (pid < machine->pid) | |
a1645ce1 | 657 | p = &(*p)->rb_left; |
23346f21 | 658 | else if (pid > machine->pid) |
a1645ce1 ZY |
659 | p = &(*p)->rb_right; |
660 | else | |
23346f21 ACM |
661 | return machine; |
662 | if (!machine->pid) | |
663 | default_machine = machine; | |
a1645ce1 ZY |
664 | } |
665 | ||
23346f21 | 666 | return default_machine; |
a1645ce1 ZY |
667 | } |
668 | ||
23346f21 | 669 | struct machine *machines__findnew(struct rb_root *self, pid_t pid) |
a1645ce1 ZY |
670 | { |
671 | char path[PATH_MAX]; | |
7ed97ad4 | 672 | const char *root_dir = ""; |
23346f21 | 673 | struct machine *machine = machines__find(self, pid); |
a1645ce1 | 674 | |
7ed97ad4 DA |
675 | if (machine && (machine->pid == pid)) |
676 | goto out; | |
677 | ||
678 | if ((pid != HOST_KERNEL_ID) && | |
679 | (pid != DEFAULT_GUEST_KERNEL_ID) && | |
680 | (symbol_conf.guestmount)) { | |
681 | sprintf(path, "%s/%d", symbol_conf.guestmount, pid); | |
682 | if (access(path, R_OK)) { | |
683 | pr_err("Can't access file %s\n", path); | |
684 | machine = NULL; | |
685 | goto out; | |
a1645ce1 | 686 | } |
7ed97ad4 | 687 | root_dir = path; |
a1645ce1 ZY |
688 | } |
689 | ||
7ed97ad4 DA |
690 | machine = machines__add(self, pid, root_dir); |
691 | ||
a1645ce1 | 692 | out: |
23346f21 | 693 | return machine; |
a1645ce1 ZY |
694 | } |
695 | ||
23346f21 | 696 | void machines__process(struct rb_root *self, machine__process_t process, void *data) |
a1645ce1 ZY |
697 | { |
698 | struct rb_node *nd; | |
699 | ||
23346f21 ACM |
700 | for (nd = rb_first(self); nd; nd = rb_next(nd)) { |
701 | struct machine *pos = rb_entry(nd, struct machine, rb_node); | |
a1645ce1 ZY |
702 | process(pos, data); |
703 | } | |
704 | } | |
705 | ||
48ea8f54 | 706 | char *machine__mmap_name(struct machine *self, char *bf, size_t size) |
a1645ce1 | 707 | { |
23346f21 | 708 | if (machine__is_host(self)) |
48ea8f54 | 709 | snprintf(bf, size, "[%s]", "kernel.kallsyms"); |
23346f21 | 710 | else if (machine__is_default_guest(self)) |
48ea8f54 | 711 | snprintf(bf, size, "[%s]", "guest.kernel.kallsyms"); |
a1645ce1 | 712 | else |
48ea8f54 | 713 | snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms", self->pid); |
a1645ce1 | 714 | |
48ea8f54 | 715 | return bf; |
a1645ce1 | 716 | } |