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Commit | Line | Data |
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78f7defe ACM |
1 | /* |
2 | * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> | |
3 | * | |
4 | * Parts came from builtin-annotate.c, see those files for further | |
5 | * copyright notes. | |
6 | * | |
7 | * Released under the GPL v2. (and only v2, not any later version) | |
8 | */ | |
9 | ||
10 | #include "util.h" | |
11 | #include "build-id.h" | |
12 | #include "color.h" | |
13 | #include "cache.h" | |
14 | #include "symbol.h" | |
15 | #include "debug.h" | |
16 | #include "annotate.h" | |
ce6f4fab | 17 | #include <pthread.h> |
78f7defe | 18 | |
f69b64f7 AK |
19 | const char *disassembler_style; |
20 | ||
5417072b ACM |
21 | static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size, |
22 | struct ins_operands *ops) | |
23 | { | |
24 | return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw); | |
25 | } | |
26 | ||
27 | int ins__scnprintf(struct ins *ins, char *bf, size_t size, | |
28 | struct ins_operands *ops) | |
29 | { | |
30 | if (ins->ops->scnprintf) | |
31 | return ins->ops->scnprintf(ins, bf, size, ops); | |
32 | ||
33 | return ins__raw_scnprintf(ins, bf, size, ops); | |
34 | } | |
35 | ||
c7e6ead7 | 36 | static int call__parse(struct ins_operands *ops) |
d86b0597 | 37 | { |
d2232885 ACM |
38 | char *endptr, *tok, *name; |
39 | ||
44d1a3ed | 40 | ops->target.addr = strtoull(ops->raw, &endptr, 16); |
d2232885 ACM |
41 | |
42 | name = strchr(endptr, '<'); | |
43 | if (name == NULL) | |
44 | goto indirect_call; | |
45 | ||
46 | name++; | |
47 | ||
48 | tok = strchr(name, '>'); | |
49 | if (tok == NULL) | |
50 | return -1; | |
51 | ||
52 | *tok = '\0'; | |
44d1a3ed | 53 | ops->target.name = strdup(name); |
d2232885 ACM |
54 | *tok = '>'; |
55 | ||
44d1a3ed | 56 | return ops->target.name == NULL ? -1 : 0; |
d2232885 ACM |
57 | |
58 | indirect_call: | |
e8ea1561 ACM |
59 | tok = strchr(endptr, '('); |
60 | if (tok != NULL) { | |
61 | ops->target.addr = 0; | |
62 | return 0; | |
63 | } | |
64 | ||
d2232885 ACM |
65 | tok = strchr(endptr, '*'); |
66 | if (tok == NULL) | |
67 | return -1; | |
68 | ||
44d1a3ed | 69 | ops->target.addr = strtoull(tok + 1, NULL, 16); |
d86b0597 ACM |
70 | return 0; |
71 | } | |
72 | ||
d2232885 | 73 | static int call__scnprintf(struct ins *ins, char *bf, size_t size, |
5417072b | 74 | struct ins_operands *ops) |
d2232885 | 75 | { |
44d1a3ed ACM |
76 | if (ops->target.name) |
77 | return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name); | |
d2232885 | 78 | |
e8ea1561 ACM |
79 | if (ops->target.addr == 0) |
80 | return ins__raw_scnprintf(ins, bf, size, ops); | |
81 | ||
44d1a3ed | 82 | return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr); |
d2232885 ACM |
83 | } |
84 | ||
d86b0597 | 85 | static struct ins_ops call_ops = { |
d2232885 ACM |
86 | .parse = call__parse, |
87 | .scnprintf = call__scnprintf, | |
d86b0597 ACM |
88 | }; |
89 | ||
90 | bool ins__is_call(const struct ins *ins) | |
91 | { | |
92 | return ins->ops == &call_ops; | |
93 | } | |
94 | ||
c7e6ead7 | 95 | static int jump__parse(struct ins_operands *ops) |
4f9d0325 | 96 | { |
c7e6ead7 | 97 | const char *s = strchr(ops->raw, '+'); |
4f9d0325 | 98 | |
fb29fa58 ACM |
99 | ops->target.addr = strtoll(ops->raw, NULL, 16); |
100 | ||
101 | if (s++ != NULL) | |
102 | ops->target.offset = strtoll(s, NULL, 16); | |
103 | else | |
104 | ops->target.offset = UINT64_MAX; | |
4f9d0325 | 105 | |
4f9d0325 ACM |
106 | return 0; |
107 | } | |
108 | ||
c7e6ead7 | 109 | static int jump__scnprintf(struct ins *ins, char *bf, size_t size, |
5417072b | 110 | struct ins_operands *ops) |
28548d78 | 111 | { |
44d1a3ed | 112 | return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset); |
28548d78 ACM |
113 | } |
114 | ||
4f9d0325 | 115 | static struct ins_ops jump_ops = { |
c7e6ead7 ACM |
116 | .parse = jump__parse, |
117 | .scnprintf = jump__scnprintf, | |
4f9d0325 ACM |
118 | }; |
119 | ||
120 | bool ins__is_jump(const struct ins *ins) | |
121 | { | |
122 | return ins->ops == &jump_ops; | |
123 | } | |
124 | ||
b9818e93 ACM |
125 | static int nop__scnprintf(struct ins *ins __used, char *bf, size_t size, |
126 | struct ins_operands *ops __used) | |
127 | { | |
128 | return scnprintf(bf, size, "%-6.6s", "nop"); | |
129 | } | |
130 | ||
131 | static struct ins_ops nop_ops = { | |
132 | .scnprintf = nop__scnprintf, | |
133 | }; | |
134 | ||
4f9d0325 ACM |
135 | /* |
136 | * Must be sorted by name! | |
137 | */ | |
138 | static struct ins instructions[] = { | |
d86b0597 ACM |
139 | { .name = "call", .ops = &call_ops, }, |
140 | { .name = "callq", .ops = &call_ops, }, | |
4f9d0325 | 141 | { .name = "ja", .ops = &jump_ops, }, |
3f862fd0 ACM |
142 | { .name = "jae", .ops = &jump_ops, }, |
143 | { .name = "jb", .ops = &jump_ops, }, | |
144 | { .name = "jbe", .ops = &jump_ops, }, | |
145 | { .name = "jc", .ops = &jump_ops, }, | |
146 | { .name = "jcxz", .ops = &jump_ops, }, | |
4f9d0325 | 147 | { .name = "je", .ops = &jump_ops, }, |
3f862fd0 ACM |
148 | { .name = "jecxz", .ops = &jump_ops, }, |
149 | { .name = "jg", .ops = &jump_ops, }, | |
150 | { .name = "jge", .ops = &jump_ops, }, | |
151 | { .name = "jl", .ops = &jump_ops, }, | |
152 | { .name = "jle", .ops = &jump_ops, }, | |
4f9d0325 ACM |
153 | { .name = "jmp", .ops = &jump_ops, }, |
154 | { .name = "jmpq", .ops = &jump_ops, }, | |
3f862fd0 ACM |
155 | { .name = "jna", .ops = &jump_ops, }, |
156 | { .name = "jnae", .ops = &jump_ops, }, | |
157 | { .name = "jnb", .ops = &jump_ops, }, | |
158 | { .name = "jnbe", .ops = &jump_ops, }, | |
159 | { .name = "jnc", .ops = &jump_ops, }, | |
4f9d0325 | 160 | { .name = "jne", .ops = &jump_ops, }, |
3f862fd0 ACM |
161 | { .name = "jng", .ops = &jump_ops, }, |
162 | { .name = "jnge", .ops = &jump_ops, }, | |
163 | { .name = "jnl", .ops = &jump_ops, }, | |
164 | { .name = "jnle", .ops = &jump_ops, }, | |
165 | { .name = "jno", .ops = &jump_ops, }, | |
166 | { .name = "jnp", .ops = &jump_ops, }, | |
167 | { .name = "jns", .ops = &jump_ops, }, | |
168 | { .name = "jnz", .ops = &jump_ops, }, | |
169 | { .name = "jo", .ops = &jump_ops, }, | |
170 | { .name = "jp", .ops = &jump_ops, }, | |
171 | { .name = "jpe", .ops = &jump_ops, }, | |
172 | { .name = "jpo", .ops = &jump_ops, }, | |
173 | { .name = "jrcxz", .ops = &jump_ops, }, | |
4f9d0325 | 174 | { .name = "js", .ops = &jump_ops, }, |
3f862fd0 | 175 | { .name = "jz", .ops = &jump_ops, }, |
b9818e93 ACM |
176 | { .name = "nop", .ops = &nop_ops, }, |
177 | { .name = "nopl", .ops = &nop_ops, }, | |
178 | { .name = "nopw", .ops = &nop_ops, }, | |
4f9d0325 ACM |
179 | }; |
180 | ||
181 | static int ins__cmp(const void *name, const void *insp) | |
182 | { | |
183 | const struct ins *ins = insp; | |
184 | ||
185 | return strcmp(name, ins->name); | |
186 | } | |
187 | ||
188 | static struct ins *ins__find(const char *name) | |
189 | { | |
190 | const int nmemb = ARRAY_SIZE(instructions); | |
191 | ||
192 | return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__cmp); | |
193 | } | |
194 | ||
ce6f4fab | 195 | int symbol__annotate_init(struct map *map __used, struct symbol *sym) |
78f7defe ACM |
196 | { |
197 | struct annotation *notes = symbol__annotation(sym); | |
ce6f4fab ACM |
198 | pthread_mutex_init(¬es->lock, NULL); |
199 | return 0; | |
200 | } | |
78f7defe | 201 | |
d04b35f8 | 202 | int symbol__alloc_hist(struct symbol *sym) |
ce6f4fab ACM |
203 | { |
204 | struct annotation *notes = symbol__annotation(sym); | |
1b2e2df4 | 205 | const size_t size = symbol__size(sym); |
64c17be4 | 206 | size_t sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64)); |
ce6f4fab | 207 | |
d04b35f8 | 208 | notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist); |
ce6f4fab ACM |
209 | if (notes->src == NULL) |
210 | return -1; | |
211 | notes->src->sizeof_sym_hist = sizeof_sym_hist; | |
d04b35f8 | 212 | notes->src->nr_histograms = symbol_conf.nr_events; |
ce6f4fab ACM |
213 | INIT_LIST_HEAD(¬es->src->source); |
214 | return 0; | |
78f7defe ACM |
215 | } |
216 | ||
36532461 ACM |
217 | void symbol__annotate_zero_histograms(struct symbol *sym) |
218 | { | |
219 | struct annotation *notes = symbol__annotation(sym); | |
220 | ||
ce6f4fab ACM |
221 | pthread_mutex_lock(¬es->lock); |
222 | if (notes->src != NULL) | |
223 | memset(notes->src->histograms, 0, | |
224 | notes->src->nr_histograms * notes->src->sizeof_sym_hist); | |
225 | pthread_mutex_unlock(¬es->lock); | |
36532461 ACM |
226 | } |
227 | ||
2f525d01 ACM |
228 | int symbol__inc_addr_samples(struct symbol *sym, struct map *map, |
229 | int evidx, u64 addr) | |
78f7defe | 230 | { |
2f525d01 | 231 | unsigned offset; |
78f7defe ACM |
232 | struct annotation *notes; |
233 | struct sym_hist *h; | |
234 | ||
78f7defe | 235 | notes = symbol__annotation(sym); |
ce6f4fab | 236 | if (notes->src == NULL) |
78f7defe ACM |
237 | return -ENOMEM; |
238 | ||
78f7defe ACM |
239 | pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr)); |
240 | ||
31d68e7b ACM |
241 | if (addr < sym->start || addr > sym->end) |
242 | return -ERANGE; | |
78f7defe | 243 | |
2f525d01 ACM |
244 | offset = addr - sym->start; |
245 | h = annotation__histogram(notes, evidx); | |
78f7defe ACM |
246 | h->sum++; |
247 | h->addr[offset]++; | |
248 | ||
249 | pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64 | |
2f525d01 ACM |
250 | ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name, |
251 | addr, addr - sym->start, evidx, h->addr[offset]); | |
78f7defe ACM |
252 | return 0; |
253 | } | |
254 | ||
4f9d0325 ACM |
255 | static void disasm_line__init_ins(struct disasm_line *dl) |
256 | { | |
257 | dl->ins = ins__find(dl->name); | |
258 | ||
259 | if (dl->ins == NULL) | |
260 | return; | |
261 | ||
262 | if (!dl->ins->ops) | |
263 | return; | |
264 | ||
c7e6ead7 ACM |
265 | if (dl->ins->ops->parse) |
266 | dl->ins->ops->parse(&dl->ops); | |
4f9d0325 ACM |
267 | } |
268 | ||
29ed6e76 | 269 | static struct disasm_line *disasm_line__new(s64 offset, char *line, size_t privsize) |
78f7defe | 270 | { |
5145418b | 271 | struct disasm_line *dl = zalloc(sizeof(*dl) + privsize); |
78f7defe | 272 | |
29ed6e76 ACM |
273 | if (dl != NULL) { |
274 | dl->offset = offset; | |
275 | dl->line = strdup(line); | |
276 | if (dl->line == NULL) | |
058b4cc9 | 277 | goto out_delete; |
5145418b ACM |
278 | |
279 | if (offset != -1) { | |
280 | char *name = dl->line, tmp; | |
281 | ||
282 | while (isspace(name[0])) | |
283 | ++name; | |
284 | ||
285 | if (name[0] == '\0') | |
286 | goto out_delete; | |
287 | ||
c7e6ead7 | 288 | dl->ops.raw = name + 1; |
5145418b | 289 | |
c7e6ead7 ACM |
290 | while (dl->ops.raw[0] != '\0' && |
291 | !isspace(dl->ops.raw[0])) | |
292 | ++dl->ops.raw; | |
5145418b | 293 | |
c7e6ead7 ACM |
294 | tmp = dl->ops.raw[0]; |
295 | dl->ops.raw[0] = '\0'; | |
5145418b ACM |
296 | dl->name = strdup(name); |
297 | ||
298 | if (dl->name == NULL) | |
299 | goto out_free_line; | |
300 | ||
c7e6ead7 | 301 | dl->ops.raw[0] = tmp; |
5145418b | 302 | |
c7e6ead7 ACM |
303 | if (dl->ops.raw[0] != '\0') { |
304 | dl->ops.raw++; | |
305 | while (isspace(dl->ops.raw[0])) | |
306 | ++dl->ops.raw; | |
5145418b | 307 | } |
4f9d0325 ACM |
308 | |
309 | disasm_line__init_ins(dl); | |
5145418b | 310 | } |
78f7defe ACM |
311 | } |
312 | ||
29ed6e76 | 313 | return dl; |
5145418b ACM |
314 | |
315 | out_free_line: | |
316 | free(dl->line); | |
058b4cc9 | 317 | out_delete: |
29ed6e76 | 318 | free(dl); |
058b4cc9 | 319 | return NULL; |
78f7defe ACM |
320 | } |
321 | ||
29ed6e76 | 322 | void disasm_line__free(struct disasm_line *dl) |
78f7defe | 323 | { |
29ed6e76 | 324 | free(dl->line); |
5145418b | 325 | free(dl->name); |
44d1a3ed | 326 | free(dl->ops.target.name); |
29ed6e76 | 327 | free(dl); |
78f7defe ACM |
328 | } |
329 | ||
5417072b ACM |
330 | int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw) |
331 | { | |
332 | if (raw || !dl->ins) | |
333 | return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw); | |
334 | ||
335 | return ins__scnprintf(dl->ins, bf, size, &dl->ops); | |
336 | } | |
337 | ||
29ed6e76 | 338 | static void disasm__add(struct list_head *head, struct disasm_line *line) |
78f7defe ACM |
339 | { |
340 | list_add_tail(&line->node, head); | |
341 | } | |
342 | ||
29ed6e76 | 343 | struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos) |
78f7defe ACM |
344 | { |
345 | list_for_each_entry_continue(pos, head, node) | |
346 | if (pos->offset >= 0) | |
347 | return pos; | |
348 | ||
349 | return NULL; | |
350 | } | |
351 | ||
29ed6e76 ACM |
352 | static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start, |
353 | int evidx, u64 len, int min_pcnt, int printed, | |
354 | int max_lines, struct disasm_line *queue) | |
78f7defe ACM |
355 | { |
356 | static const char *prev_line; | |
357 | static const char *prev_color; | |
358 | ||
29ed6e76 | 359 | if (dl->offset != -1) { |
78f7defe ACM |
360 | const char *path = NULL; |
361 | unsigned int hits = 0; | |
362 | double percent = 0.0; | |
363 | const char *color; | |
364 | struct annotation *notes = symbol__annotation(sym); | |
ce6f4fab | 365 | struct source_line *src_line = notes->src->lines; |
2f525d01 | 366 | struct sym_hist *h = annotation__histogram(notes, evidx); |
29ed6e76 | 367 | s64 offset = dl->offset; |
058b4cc9 | 368 | const u64 addr = start + offset; |
29ed6e76 | 369 | struct disasm_line *next; |
ce6f4fab | 370 | |
29ed6e76 | 371 | next = disasm__get_next_ip_line(¬es->src->source, dl); |
78f7defe ACM |
372 | |
373 | while (offset < (s64)len && | |
374 | (next == NULL || offset < next->offset)) { | |
375 | if (src_line) { | |
376 | if (path == NULL) | |
377 | path = src_line[offset].path; | |
378 | percent += src_line[offset].percent; | |
379 | } else | |
380 | hits += h->addr[offset]; | |
381 | ||
382 | ++offset; | |
383 | } | |
384 | ||
385 | if (src_line == NULL && h->sum) | |
386 | percent = 100.0 * hits / h->sum; | |
387 | ||
d040bd36 | 388 | if (percent < min_pcnt) |
36532461 ACM |
389 | return -1; |
390 | ||
e3087b80 | 391 | if (max_lines && printed >= max_lines) |
36532461 | 392 | return 1; |
d040bd36 | 393 | |
d5e3d747 ACM |
394 | if (queue != NULL) { |
395 | list_for_each_entry_from(queue, ¬es->src->source, node) { | |
29ed6e76 | 396 | if (queue == dl) |
d5e3d747 | 397 | break; |
29ed6e76 | 398 | disasm_line__print(queue, sym, start, evidx, len, |
d5e3d747 ACM |
399 | 0, 0, 1, NULL); |
400 | } | |
401 | } | |
402 | ||
78f7defe ACM |
403 | color = get_percent_color(percent); |
404 | ||
405 | /* | |
406 | * Also color the filename and line if needed, with | |
407 | * the same color than the percentage. Don't print it | |
408 | * twice for close colored addr with the same filename:line | |
409 | */ | |
410 | if (path) { | |
411 | if (!prev_line || strcmp(prev_line, path) | |
412 | || color != prev_color) { | |
413 | color_fprintf(stdout, color, " %s", path); | |
414 | prev_line = path; | |
415 | prev_color = color; | |
416 | } | |
417 | } | |
418 | ||
419 | color_fprintf(stdout, color, " %7.2f", percent); | |
420 | printf(" : "); | |
058b4cc9 | 421 | color_fprintf(stdout, PERF_COLOR_MAGENTA, " %" PRIx64 ":", addr); |
29ed6e76 | 422 | color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line); |
e3087b80 | 423 | } else if (max_lines && printed >= max_lines) |
36532461 ACM |
424 | return 1; |
425 | else { | |
d5e3d747 ACM |
426 | if (queue) |
427 | return -1; | |
428 | ||
29ed6e76 | 429 | if (!*dl->line) |
78f7defe ACM |
430 | printf(" :\n"); |
431 | else | |
29ed6e76 | 432 | printf(" : %s\n", dl->line); |
78f7defe | 433 | } |
36532461 ACM |
434 | |
435 | return 0; | |
78f7defe ACM |
436 | } |
437 | ||
ce6f4fab ACM |
438 | static int symbol__parse_objdump_line(struct symbol *sym, struct map *map, |
439 | FILE *file, size_t privsize) | |
78f7defe | 440 | { |
ce6f4fab | 441 | struct annotation *notes = symbol__annotation(sym); |
29ed6e76 | 442 | struct disasm_line *dl; |
058b4cc9 | 443 | char *line = NULL, *parsed_line, *tmp, *tmp2, *c; |
78f7defe ACM |
444 | size_t line_len; |
445 | s64 line_ip, offset = -1; | |
446 | ||
447 | if (getline(&line, &line_len, file) < 0) | |
448 | return -1; | |
449 | ||
450 | if (!line) | |
451 | return -1; | |
452 | ||
453 | while (line_len != 0 && isspace(line[line_len - 1])) | |
454 | line[--line_len] = '\0'; | |
455 | ||
456 | c = strchr(line, '\n'); | |
457 | if (c) | |
458 | *c = 0; | |
459 | ||
460 | line_ip = -1; | |
a31b7cc0 | 461 | parsed_line = line; |
78f7defe ACM |
462 | |
463 | /* | |
464 | * Strip leading spaces: | |
465 | */ | |
466 | tmp = line; | |
467 | while (*tmp) { | |
468 | if (*tmp != ' ') | |
469 | break; | |
470 | tmp++; | |
471 | } | |
472 | ||
473 | if (*tmp) { | |
474 | /* | |
475 | * Parse hexa addresses followed by ':' | |
476 | */ | |
477 | line_ip = strtoull(tmp, &tmp2, 16); | |
478 | if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0') | |
479 | line_ip = -1; | |
480 | } | |
481 | ||
482 | if (line_ip != -1) { | |
483 | u64 start = map__rip_2objdump(map, sym->start), | |
484 | end = map__rip_2objdump(map, sym->end); | |
485 | ||
486 | offset = line_ip - start; | |
487 | if (offset < 0 || (u64)line_ip > end) | |
488 | offset = -1; | |
058b4cc9 ACM |
489 | else |
490 | parsed_line = tmp2 + 1; | |
a31b7cc0 | 491 | } |
78f7defe | 492 | |
29ed6e76 | 493 | dl = disasm_line__new(offset, parsed_line, privsize); |
058b4cc9 ACM |
494 | free(line); |
495 | ||
29ed6e76 | 496 | if (dl == NULL) |
78f7defe | 497 | return -1; |
058b4cc9 | 498 | |
29ed6e76 | 499 | disasm__add(¬es->src->source, dl); |
78f7defe ACM |
500 | |
501 | return 0; | |
502 | } | |
503 | ||
ce6f4fab | 504 | int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize) |
78f7defe ACM |
505 | { |
506 | struct dso *dso = map->dso; | |
507 | char *filename = dso__build_id_filename(dso, NULL, 0); | |
508 | bool free_filename = true; | |
509 | char command[PATH_MAX * 2]; | |
510 | FILE *file; | |
511 | int err = 0; | |
78f7defe ACM |
512 | char symfs_filename[PATH_MAX]; |
513 | ||
514 | if (filename) { | |
515 | snprintf(symfs_filename, sizeof(symfs_filename), "%s%s", | |
516 | symbol_conf.symfs, filename); | |
517 | } | |
518 | ||
519 | if (filename == NULL) { | |
520 | if (dso->has_build_id) { | |
521 | pr_err("Can't annotate %s: not enough memory\n", | |
522 | sym->name); | |
523 | return -ENOMEM; | |
524 | } | |
525 | goto fallback; | |
526 | } else if (readlink(symfs_filename, command, sizeof(command)) < 0 || | |
527 | strstr(command, "[kernel.kallsyms]") || | |
528 | access(symfs_filename, R_OK)) { | |
529 | free(filename); | |
530 | fallback: | |
531 | /* | |
532 | * If we don't have build-ids or the build-id file isn't in the | |
533 | * cache, or is just a kallsyms file, well, lets hope that this | |
534 | * DSO is the same as when 'perf record' ran. | |
535 | */ | |
536 | filename = dso->long_name; | |
537 | snprintf(symfs_filename, sizeof(symfs_filename), "%s%s", | |
538 | symbol_conf.symfs, filename); | |
539 | free_filename = false; | |
540 | } | |
541 | ||
878b439d | 542 | if (dso->symtab_type == SYMTAB__KALLSYMS) { |
170ae6bc ACM |
543 | char bf[BUILD_ID_SIZE * 2 + 16] = " with build id "; |
544 | char *build_id_msg = NULL; | |
545 | ||
78f7defe ACM |
546 | if (dso->annotate_warned) |
547 | goto out_free_filename; | |
170ae6bc ACM |
548 | |
549 | if (dso->has_build_id) { | |
550 | build_id__sprintf(dso->build_id, | |
551 | sizeof(dso->build_id), bf + 15); | |
552 | build_id_msg = bf; | |
553 | } | |
78f7defe ACM |
554 | err = -ENOENT; |
555 | dso->annotate_warned = 1; | |
ae55795e ACM |
556 | pr_err("Can't annotate %s:\n\n" |
557 | "No vmlinux file%s\nwas found in the path.\n\n" | |
558 | "Please use:\n\n" | |
559 | " perf buildid-cache -av vmlinux\n\n" | |
560 | "or:\n\n" | |
ff2a6617 | 561 | " --vmlinux vmlinux\n", |
170ae6bc | 562 | sym->name, build_id_msg ?: ""); |
78f7defe ACM |
563 | goto out_free_filename; |
564 | } | |
565 | ||
566 | pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, | |
567 | filename, sym->name, map->unmap_ip(map, sym->start), | |
568 | map->unmap_ip(map, sym->end)); | |
569 | ||
78f7defe ACM |
570 | pr_debug("annotating [%p] %30s : [%p] %30s\n", |
571 | dso, dso->long_name, sym, sym->name); | |
572 | ||
573 | snprintf(command, sizeof(command), | |
f69b64f7 | 574 | "objdump %s%s --start-address=0x%016" PRIx64 |
3e6a2a7f SE |
575 | " --stop-address=0x%016" PRIx64 |
576 | " -d %s %s -C %s|grep -v %s|expand", | |
f69b64f7 AK |
577 | disassembler_style ? "-M " : "", |
578 | disassembler_style ? disassembler_style : "", | |
78f7defe | 579 | map__rip_2objdump(map, sym->start), |
f41612f4 | 580 | map__rip_2objdump(map, sym->end+1), |
3e6a2a7f SE |
581 | symbol_conf.annotate_asm_raw ? "" : "--no-show-raw", |
582 | symbol_conf.annotate_src ? "-S" : "", | |
78f7defe ACM |
583 | symfs_filename, filename); |
584 | ||
585 | pr_debug("Executing: %s\n", command); | |
586 | ||
587 | file = popen(command, "r"); | |
588 | if (!file) | |
589 | goto out_free_filename; | |
590 | ||
591 | while (!feof(file)) | |
ce6f4fab | 592 | if (symbol__parse_objdump_line(sym, map, file, privsize) < 0) |
78f7defe ACM |
593 | break; |
594 | ||
595 | pclose(file); | |
596 | out_free_filename: | |
597 | if (free_filename) | |
598 | free(filename); | |
599 | return err; | |
600 | } | |
601 | ||
602 | static void insert_source_line(struct rb_root *root, struct source_line *src_line) | |
603 | { | |
604 | struct source_line *iter; | |
605 | struct rb_node **p = &root->rb_node; | |
606 | struct rb_node *parent = NULL; | |
607 | ||
608 | while (*p != NULL) { | |
609 | parent = *p; | |
610 | iter = rb_entry(parent, struct source_line, node); | |
611 | ||
612 | if (src_line->percent > iter->percent) | |
613 | p = &(*p)->rb_left; | |
614 | else | |
615 | p = &(*p)->rb_right; | |
616 | } | |
617 | ||
618 | rb_link_node(&src_line->node, parent, p); | |
619 | rb_insert_color(&src_line->node, root); | |
620 | } | |
621 | ||
622 | static void symbol__free_source_line(struct symbol *sym, int len) | |
623 | { | |
624 | struct annotation *notes = symbol__annotation(sym); | |
ce6f4fab | 625 | struct source_line *src_line = notes->src->lines; |
78f7defe ACM |
626 | int i; |
627 | ||
628 | for (i = 0; i < len; i++) | |
629 | free(src_line[i].path); | |
630 | ||
631 | free(src_line); | |
ce6f4fab | 632 | notes->src->lines = NULL; |
78f7defe ACM |
633 | } |
634 | ||
635 | /* Get the filename:line for the colored entries */ | |
636 | static int symbol__get_source_line(struct symbol *sym, struct map *map, | |
2f525d01 | 637 | int evidx, struct rb_root *root, int len, |
78f7defe ACM |
638 | const char *filename) |
639 | { | |
640 | u64 start; | |
641 | int i; | |
642 | char cmd[PATH_MAX * 2]; | |
643 | struct source_line *src_line; | |
644 | struct annotation *notes = symbol__annotation(sym); | |
2f525d01 | 645 | struct sym_hist *h = annotation__histogram(notes, evidx); |
78f7defe ACM |
646 | |
647 | if (!h->sum) | |
648 | return 0; | |
649 | ||
ce6f4fab ACM |
650 | src_line = notes->src->lines = calloc(len, sizeof(struct source_line)); |
651 | if (!notes->src->lines) | |
78f7defe ACM |
652 | return -1; |
653 | ||
f40a0633 | 654 | start = map__rip_2objdump(map, sym->start); |
78f7defe ACM |
655 | |
656 | for (i = 0; i < len; i++) { | |
657 | char *path = NULL; | |
658 | size_t line_len; | |
659 | u64 offset; | |
660 | FILE *fp; | |
661 | ||
662 | src_line[i].percent = 100.0 * h->addr[i] / h->sum; | |
663 | if (src_line[i].percent <= 0.5) | |
664 | continue; | |
665 | ||
666 | offset = start + i; | |
667 | sprintf(cmd, "addr2line -e %s %016" PRIx64, filename, offset); | |
668 | fp = popen(cmd, "r"); | |
669 | if (!fp) | |
670 | continue; | |
671 | ||
672 | if (getline(&path, &line_len, fp) < 0 || !line_len) | |
673 | goto next; | |
674 | ||
675 | src_line[i].path = malloc(sizeof(char) * line_len + 1); | |
676 | if (!src_line[i].path) | |
677 | goto next; | |
678 | ||
679 | strcpy(src_line[i].path, path); | |
680 | insert_source_line(root, &src_line[i]); | |
681 | ||
682 | next: | |
683 | pclose(fp); | |
684 | } | |
685 | ||
686 | return 0; | |
687 | } | |
688 | ||
689 | static void print_summary(struct rb_root *root, const char *filename) | |
690 | { | |
691 | struct source_line *src_line; | |
692 | struct rb_node *node; | |
693 | ||
694 | printf("\nSorted summary for file %s\n", filename); | |
695 | printf("----------------------------------------------\n\n"); | |
696 | ||
697 | if (RB_EMPTY_ROOT(root)) { | |
698 | printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); | |
699 | return; | |
700 | } | |
701 | ||
702 | node = rb_first(root); | |
703 | while (node) { | |
704 | double percent; | |
705 | const char *color; | |
706 | char *path; | |
707 | ||
708 | src_line = rb_entry(node, struct source_line, node); | |
709 | percent = src_line->percent; | |
710 | color = get_percent_color(percent); | |
711 | path = src_line->path; | |
712 | ||
713 | color_fprintf(stdout, color, " %7.2f %s", percent, path); | |
714 | node = rb_next(node); | |
715 | } | |
716 | } | |
717 | ||
2f525d01 | 718 | static void symbol__annotate_hits(struct symbol *sym, int evidx) |
78f7defe ACM |
719 | { |
720 | struct annotation *notes = symbol__annotation(sym); | |
2f525d01 | 721 | struct sym_hist *h = annotation__histogram(notes, evidx); |
1b2e2df4 | 722 | u64 len = symbol__size(sym), offset; |
78f7defe ACM |
723 | |
724 | for (offset = 0; offset < len; ++offset) | |
725 | if (h->addr[offset] != 0) | |
726 | printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2, | |
727 | sym->start + offset, h->addr[offset]); | |
728 | printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum); | |
729 | } | |
730 | ||
ce6f4fab | 731 | int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx, |
d5e3d747 ACM |
732 | bool full_paths, int min_pcnt, int max_lines, |
733 | int context) | |
78f7defe ACM |
734 | { |
735 | struct dso *dso = map->dso; | |
736 | const char *filename = dso->long_name, *d_filename; | |
ce6f4fab | 737 | struct annotation *notes = symbol__annotation(sym); |
29ed6e76 | 738 | struct disasm_line *pos, *queue = NULL; |
058b4cc9 | 739 | u64 start = map__rip_2objdump(map, sym->start); |
d5e3d747 | 740 | int printed = 2, queue_len = 0; |
36532461 | 741 | int more = 0; |
78f7defe ACM |
742 | u64 len; |
743 | ||
78f7defe ACM |
744 | if (full_paths) |
745 | d_filename = filename; | |
746 | else | |
747 | d_filename = basename(filename); | |
748 | ||
1b2e2df4 | 749 | len = symbol__size(sym); |
78f7defe | 750 | |
78f7defe ACM |
751 | printf(" Percent | Source code & Disassembly of %s\n", d_filename); |
752 | printf("------------------------------------------------\n"); | |
753 | ||
754 | if (verbose) | |
2f525d01 | 755 | symbol__annotate_hits(sym, evidx); |
78f7defe | 756 | |
ce6f4fab | 757 | list_for_each_entry(pos, ¬es->src->source, node) { |
d5e3d747 ACM |
758 | if (context && queue == NULL) { |
759 | queue = pos; | |
760 | queue_len = 0; | |
761 | } | |
762 | ||
29ed6e76 | 763 | switch (disasm_line__print(pos, sym, start, evidx, len, |
058b4cc9 ACM |
764 | min_pcnt, printed, max_lines, |
765 | queue)) { | |
36532461 ACM |
766 | case 0: |
767 | ++printed; | |
d5e3d747 ACM |
768 | if (context) { |
769 | printed += queue_len; | |
770 | queue = NULL; | |
771 | queue_len = 0; | |
772 | } | |
36532461 ACM |
773 | break; |
774 | case 1: | |
775 | /* filtered by max_lines */ | |
776 | ++more; | |
d040bd36 | 777 | break; |
36532461 ACM |
778 | case -1: |
779 | default: | |
d5e3d747 ACM |
780 | /* |
781 | * Filtered by min_pcnt or non IP lines when | |
782 | * context != 0 | |
783 | */ | |
784 | if (!context) | |
785 | break; | |
786 | if (queue_len == context) | |
787 | queue = list_entry(queue->node.next, typeof(*queue), node); | |
788 | else | |
789 | ++queue_len; | |
36532461 ACM |
790 | break; |
791 | } | |
792 | } | |
793 | ||
794 | return more; | |
795 | } | |
f1e2701d | 796 | |
36532461 ACM |
797 | void symbol__annotate_zero_histogram(struct symbol *sym, int evidx) |
798 | { | |
799 | struct annotation *notes = symbol__annotation(sym); | |
800 | struct sym_hist *h = annotation__histogram(notes, evidx); | |
801 | ||
ce6f4fab | 802 | memset(h, 0, notes->src->sizeof_sym_hist); |
36532461 ACM |
803 | } |
804 | ||
ce6f4fab | 805 | void symbol__annotate_decay_histogram(struct symbol *sym, int evidx) |
36532461 ACM |
806 | { |
807 | struct annotation *notes = symbol__annotation(sym); | |
808 | struct sym_hist *h = annotation__histogram(notes, evidx); | |
1b2e2df4 | 809 | int len = symbol__size(sym), offset; |
36532461 ACM |
810 | |
811 | h->sum = 0; | |
8b84a568 ACM |
812 | for (offset = 0; offset < len; ++offset) { |
813 | h->addr[offset] = h->addr[offset] * 7 / 8; | |
814 | h->sum += h->addr[offset]; | |
f1e2701d ACM |
815 | } |
816 | } | |
817 | ||
29ed6e76 | 818 | void disasm__purge(struct list_head *head) |
f1e2701d | 819 | { |
29ed6e76 | 820 | struct disasm_line *pos, *n; |
f1e2701d ACM |
821 | |
822 | list_for_each_entry_safe(pos, n, head, node) { | |
823 | list_del(&pos->node); | |
29ed6e76 | 824 | disasm_line__free(pos); |
f1e2701d ACM |
825 | } |
826 | } | |
827 | ||
5145418b ACM |
828 | static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp) |
829 | { | |
830 | size_t printed; | |
831 | ||
832 | if (dl->offset == -1) | |
833 | return fprintf(fp, "%s\n", dl->line); | |
834 | ||
835 | printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name); | |
836 | ||
c7e6ead7 | 837 | if (dl->ops.raw[0] != '\0') { |
5145418b | 838 | printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ", |
c7e6ead7 | 839 | dl->ops.raw); |
5145418b ACM |
840 | } |
841 | ||
842 | return printed + fprintf(fp, "\n"); | |
843 | } | |
844 | ||
845 | size_t disasm__fprintf(struct list_head *head, FILE *fp) | |
846 | { | |
847 | struct disasm_line *pos; | |
848 | size_t printed = 0; | |
849 | ||
850 | list_for_each_entry(pos, head, node) | |
851 | printed += disasm_line__fprintf(pos, fp); | |
852 | ||
853 | return printed; | |
854 | } | |
855 | ||
f1e2701d ACM |
856 | int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx, |
857 | bool print_lines, bool full_paths, int min_pcnt, | |
858 | int max_lines) | |
859 | { | |
860 | struct dso *dso = map->dso; | |
861 | const char *filename = dso->long_name; | |
862 | struct rb_root source_line = RB_ROOT; | |
f1e2701d ACM |
863 | u64 len; |
864 | ||
ce6f4fab | 865 | if (symbol__annotate(sym, map, 0) < 0) |
f1e2701d ACM |
866 | return -1; |
867 | ||
1b2e2df4 | 868 | len = symbol__size(sym); |
f1e2701d ACM |
869 | |
870 | if (print_lines) { | |
871 | symbol__get_source_line(sym, map, evidx, &source_line, | |
872 | len, filename); | |
873 | print_summary(&source_line, filename); | |
78f7defe ACM |
874 | } |
875 | ||
ce6f4fab | 876 | symbol__annotate_printf(sym, map, evidx, full_paths, |
d5e3d747 | 877 | min_pcnt, max_lines, 0); |
78f7defe ACM |
878 | if (print_lines) |
879 | symbol__free_source_line(sym, len); | |
880 | ||
29ed6e76 | 881 | disasm__purge(&symbol__annotation(sym)->src->source); |
f1e2701d | 882 | |
78f7defe ACM |
883 | return 0; |
884 | } |