Commit | Line | Data |
---|---|---|
8035e428 IM |
1 | /* |
2 | * builtin-annotate.c | |
3 | * | |
4 | * Builtin annotate command: Analyze the perf.data input file, | |
5 | * look up and read DSOs and symbol information and display | |
6 | * a histogram of results, along various sorting keys. | |
7 | */ | |
8 | #include "builtin.h" | |
9 | ||
10 | #include "util/util.h" | |
11 | ||
12 | #include "util/color.h" | |
5da50258 | 13 | #include <linux/list.h> |
8035e428 | 14 | #include "util/cache.h" |
43cbcd8a | 15 | #include <linux/rbtree.h> |
8035e428 IM |
16 | #include "util/symbol.h" |
17 | #include "util/string.h" | |
18 | ||
19 | #include "perf.h" | |
8f28827a | 20 | #include "util/debug.h" |
8035e428 IM |
21 | |
22 | #include "util/parse-options.h" | |
23 | #include "util/parse-events.h" | |
6baa0a5a | 24 | #include "util/thread.h" |
dd68ada2 | 25 | #include "util/sort.h" |
3d1d07ec | 26 | #include "util/hist.h" |
8035e428 | 27 | |
8035e428 | 28 | static char const *input_name = "perf.data"; |
8035e428 | 29 | |
fa6963b2 | 30 | static int force; |
8035e428 IM |
31 | static int input; |
32 | static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; | |
33 | ||
42976487 MG |
34 | static int full_paths; |
35 | ||
301406b9 FW |
36 | static int print_line; |
37 | ||
8035e428 IM |
38 | static unsigned long page_size; |
39 | static unsigned long mmap_window = 32; | |
40 | ||
6baa0a5a FW |
41 | static struct rb_root threads; |
42 | static struct thread *last_match; | |
43 | ||
301406b9 FW |
44 | |
45 | struct sym_ext { | |
971738f3 | 46 | struct rb_node node; |
301406b9 FW |
47 | double percent; |
48 | char *path; | |
49 | }; | |
50 | ||
8035e428 | 51 | |
0b73da3f IM |
52 | /* |
53 | * collect histogram counts | |
54 | */ | |
9cffa8d5 | 55 | static void hist_hit(struct hist_entry *he, u64 ip) |
8035e428 | 56 | { |
0b73da3f IM |
57 | unsigned int sym_size, offset; |
58 | struct symbol *sym = he->sym; | |
8035e428 | 59 | |
0b73da3f | 60 | he->count++; |
8035e428 | 61 | |
0b73da3f IM |
62 | if (!sym || !sym->hist) |
63 | return; | |
8035e428 | 64 | |
0b73da3f | 65 | sym_size = sym->end - sym->start; |
439d473b | 66 | ip = he->map->map_ip(he->map, ip); |
0b73da3f | 67 | offset = ip - sym->start; |
8035e428 | 68 | |
0b73da3f IM |
69 | if (offset >= sym_size) |
70 | return; | |
8035e428 | 71 | |
0b73da3f IM |
72 | sym->hist_sum++; |
73 | sym->hist[offset]++; | |
8035e428 | 74 | |
0b73da3f IM |
75 | if (verbose >= 3) |
76 | printf("%p %s: count++ [ip: %p, %08Lx] => %Ld\n", | |
7d37a0cb | 77 | (void *)(unsigned long)he->sym->start, |
0b73da3f | 78 | he->sym->name, |
7d37a0cb | 79 | (void *)(unsigned long)ip, ip - he->sym->start, |
0b73da3f | 80 | sym->hist[offset]); |
8035e428 IM |
81 | } |
82 | ||
8035e428 | 83 | static int |
439d473b | 84 | hist_entry__add(struct thread *thread, struct map *map, |
9cffa8d5 | 85 | struct symbol *sym, u64 ip, char level) |
8035e428 IM |
86 | { |
87 | struct rb_node **p = &hist.rb_node; | |
88 | struct rb_node *parent = NULL; | |
89 | struct hist_entry *he; | |
90 | struct hist_entry entry = { | |
91 | .thread = thread, | |
92 | .map = map, | |
8035e428 IM |
93 | .sym = sym, |
94 | .ip = ip, | |
95 | .level = level, | |
96 | .count = 1, | |
97 | }; | |
98 | int cmp; | |
99 | ||
100 | while (*p != NULL) { | |
101 | parent = *p; | |
102 | he = rb_entry(parent, struct hist_entry, rb_node); | |
103 | ||
104 | cmp = hist_entry__cmp(&entry, he); | |
105 | ||
106 | if (!cmp) { | |
0b73da3f IM |
107 | hist_hit(he, ip); |
108 | ||
8035e428 IM |
109 | return 0; |
110 | } | |
111 | ||
112 | if (cmp < 0) | |
113 | p = &(*p)->rb_left; | |
114 | else | |
115 | p = &(*p)->rb_right; | |
116 | } | |
117 | ||
118 | he = malloc(sizeof(*he)); | |
119 | if (!he) | |
120 | return -ENOMEM; | |
121 | *he = entry; | |
122 | rb_link_node(&he->rb_node, parent, p); | |
123 | rb_insert_color(&he->rb_node, &hist); | |
124 | ||
125 | return 0; | |
126 | } | |
127 | ||
8035e428 | 128 | static int |
e6e18ec7 | 129 | process_sample_event(event_t *event, unsigned long offset, unsigned long head) |
8035e428 IM |
130 | { |
131 | char level; | |
132 | int show = 0; | |
6baa0a5a | 133 | struct thread *thread; |
9cffa8d5 | 134 | u64 ip = event->ip.ip; |
8035e428 | 135 | struct map *map = NULL; |
439d473b | 136 | struct symbol *sym = NULL; |
8035e428 | 137 | |
6baa0a5a FW |
138 | thread = threads__findnew(event->ip.pid, &threads, &last_match); |
139 | ||
2cec19d9 | 140 | dump_printf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n", |
8035e428 IM |
141 | (void *)(offset + head), |
142 | (void *)(long)(event->header.size), | |
143 | event->header.misc, | |
144 | event->ip.pid, | |
145 | (void *)(long)ip); | |
146 | ||
2cec19d9 | 147 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
8035e428 IM |
148 | |
149 | if (thread == NULL) { | |
150 | fprintf(stderr, "problem processing %d event, skipping it.\n", | |
151 | event->header.type); | |
152 | return -1; | |
153 | } | |
154 | ||
cdd6c482 | 155 | if (event->header.misc & PERF_RECORD_MISC_KERNEL) { |
8035e428 IM |
156 | show = SHOW_KERNEL; |
157 | level = 'k'; | |
439d473b ACM |
158 | sym = kernel_maps__find_symbol(ip, &map); |
159 | dump_printf(" ...... dso: %s\n", | |
160 | map ? map->dso->long_name : "<not found>"); | |
cdd6c482 | 161 | } else if (event->header.misc & PERF_RECORD_MISC_USER) { |
8035e428 IM |
162 | show = SHOW_USER; |
163 | level = '.'; | |
8035e428 IM |
164 | map = thread__find_map(thread, ip); |
165 | if (map != NULL) { | |
439d473b | 166 | got_map: |
8035e428 | 167 | ip = map->map_ip(map, ip); |
439d473b | 168 | sym = map->dso->find_symbol(map->dso, ip); |
8035e428 IM |
169 | } else { |
170 | /* | |
171 | * If this is outside of all known maps, | |
172 | * and is a negative address, try to look it | |
173 | * up in the kernel dso, as it might be a | |
439d473b ACM |
174 | * vsyscall or vdso (which executes in user-mode). |
175 | * | |
176 | * XXX This is nasty, we should have a symbol list in | |
177 | * the "[vdso]" dso, but for now lets use the old | |
178 | * trick of looking in the whole kernel symbol list. | |
8035e428 | 179 | */ |
439d473b ACM |
180 | if ((long long)ip < 0) { |
181 | map = kernel_map; | |
182 | goto got_map; | |
183 | } | |
8035e428 | 184 | } |
439d473b ACM |
185 | dump_printf(" ...... dso: %s\n", |
186 | map ? map->dso->long_name : "<not found>"); | |
8035e428 IM |
187 | } else { |
188 | show = SHOW_HV; | |
189 | level = 'H'; | |
2cec19d9 | 190 | dump_printf(" ...... dso: [hypervisor]\n"); |
8035e428 IM |
191 | } |
192 | ||
193 | if (show & show_mask) { | |
439d473b | 194 | if (hist_entry__add(thread, map, sym, ip, level)) { |
8035e428 IM |
195 | fprintf(stderr, |
196 | "problem incrementing symbol count, skipping event\n"); | |
197 | return -1; | |
198 | } | |
199 | } | |
200 | total++; | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
205 | static int | |
206 | process_mmap_event(event_t *event, unsigned long offset, unsigned long head) | |
207 | { | |
6baa0a5a | 208 | struct thread *thread; |
66e274f3 | 209 | struct map *map = map__new(&event->mmap, NULL, 0); |
8035e428 | 210 | |
6baa0a5a FW |
211 | thread = threads__findnew(event->mmap.pid, &threads, &last_match); |
212 | ||
cdd6c482 | 213 | dump_printf("%p [%p]: PERF_RECORD_MMAP %d: [%p(%p) @ %p]: %s\n", |
8035e428 IM |
214 | (void *)(offset + head), |
215 | (void *)(long)(event->header.size), | |
216 | event->mmap.pid, | |
217 | (void *)(long)event->mmap.start, | |
218 | (void *)(long)event->mmap.len, | |
219 | (void *)(long)event->mmap.pgoff, | |
220 | event->mmap.filename); | |
221 | ||
222 | if (thread == NULL || map == NULL) { | |
cdd6c482 | 223 | dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n"); |
8035e428 IM |
224 | return 0; |
225 | } | |
226 | ||
227 | thread__insert_map(thread, map); | |
228 | total_mmap++; | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | static int | |
234 | process_comm_event(event_t *event, unsigned long offset, unsigned long head) | |
235 | { | |
6baa0a5a | 236 | struct thread *thread; |
8035e428 | 237 | |
6baa0a5a | 238 | thread = threads__findnew(event->comm.pid, &threads, &last_match); |
cdd6c482 | 239 | dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n", |
8035e428 IM |
240 | (void *)(offset + head), |
241 | (void *)(long)(event->header.size), | |
242 | event->comm.comm, event->comm.pid); | |
243 | ||
244 | if (thread == NULL || | |
245 | thread__set_comm(thread, event->comm.comm)) { | |
cdd6c482 | 246 | dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); |
8035e428 IM |
247 | return -1; |
248 | } | |
249 | total_comm++; | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
254 | static int | |
255 | process_fork_event(event_t *event, unsigned long offset, unsigned long head) | |
256 | { | |
6baa0a5a FW |
257 | struct thread *thread; |
258 | struct thread *parent; | |
8035e428 | 259 | |
6baa0a5a FW |
260 | thread = threads__findnew(event->fork.pid, &threads, &last_match); |
261 | parent = threads__findnew(event->fork.ppid, &threads, &last_match); | |
cdd6c482 | 262 | dump_printf("%p [%p]: PERF_RECORD_FORK: %d:%d\n", |
8035e428 IM |
263 | (void *)(offset + head), |
264 | (void *)(long)(event->header.size), | |
265 | event->fork.pid, event->fork.ppid); | |
266 | ||
15f3fa4e IM |
267 | /* |
268 | * A thread clone will have the same PID for both | |
269 | * parent and child. | |
270 | */ | |
271 | if (thread == parent) | |
272 | return 0; | |
273 | ||
8035e428 | 274 | if (!thread || !parent || thread__fork(thread, parent)) { |
cdd6c482 | 275 | dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n"); |
8035e428 IM |
276 | return -1; |
277 | } | |
278 | total_fork++; | |
279 | ||
280 | return 0; | |
281 | } | |
282 | ||
8035e428 IM |
283 | static int |
284 | process_event(event_t *event, unsigned long offset, unsigned long head) | |
285 | { | |
8035e428 | 286 | switch (event->header.type) { |
cdd6c482 | 287 | case PERF_RECORD_SAMPLE: |
e6e18ec7 PZ |
288 | return process_sample_event(event, offset, head); |
289 | ||
cdd6c482 | 290 | case PERF_RECORD_MMAP: |
8035e428 IM |
291 | return process_mmap_event(event, offset, head); |
292 | ||
cdd6c482 | 293 | case PERF_RECORD_COMM: |
8035e428 IM |
294 | return process_comm_event(event, offset, head); |
295 | ||
cdd6c482 | 296 | case PERF_RECORD_FORK: |
8035e428 | 297 | return process_fork_event(event, offset, head); |
8035e428 IM |
298 | /* |
299 | * We dont process them right now but they are fine: | |
300 | */ | |
301 | ||
cdd6c482 IM |
302 | case PERF_RECORD_THROTTLE: |
303 | case PERF_RECORD_UNTHROTTLE: | |
8035e428 IM |
304 | return 0; |
305 | ||
306 | default: | |
307 | return -1; | |
308 | } | |
309 | ||
310 | return 0; | |
311 | } | |
312 | ||
0b73da3f | 313 | static int |
439d473b | 314 | parse_line(FILE *file, struct symbol *sym, u64 len) |
0b73da3f IM |
315 | { |
316 | char *line = NULL, *tmp, *tmp2; | |
301406b9 FW |
317 | static const char *prev_line; |
318 | static const char *prev_color; | |
0b73da3f IM |
319 | unsigned int offset; |
320 | size_t line_len; | |
f37a291c | 321 | s64 line_ip; |
0b73da3f IM |
322 | int ret; |
323 | char *c; | |
324 | ||
325 | if (getline(&line, &line_len, file) < 0) | |
326 | return -1; | |
327 | if (!line) | |
328 | return -1; | |
329 | ||
330 | c = strchr(line, '\n'); | |
331 | if (c) | |
332 | *c = 0; | |
333 | ||
334 | line_ip = -1; | |
335 | offset = 0; | |
336 | ret = -2; | |
337 | ||
338 | /* | |
339 | * Strip leading spaces: | |
340 | */ | |
341 | tmp = line; | |
342 | while (*tmp) { | |
343 | if (*tmp != ' ') | |
344 | break; | |
345 | tmp++; | |
346 | } | |
347 | ||
348 | if (*tmp) { | |
349 | /* | |
350 | * Parse hexa addresses followed by ':' | |
351 | */ | |
352 | line_ip = strtoull(tmp, &tmp2, 16); | |
353 | if (*tmp2 != ':') | |
354 | line_ip = -1; | |
355 | } | |
356 | ||
357 | if (line_ip != -1) { | |
301406b9 | 358 | const char *path = NULL; |
0b73da3f IM |
359 | unsigned int hits = 0; |
360 | double percent = 0.0; | |
83a0944f | 361 | const char *color; |
301406b9 | 362 | struct sym_ext *sym_ext = sym->priv; |
0b73da3f | 363 | |
439d473b | 364 | offset = line_ip - sym->start; |
0b73da3f IM |
365 | if (offset < len) |
366 | hits = sym->hist[offset]; | |
367 | ||
c17c2db1 | 368 | if (offset < len && sym_ext) { |
301406b9 FW |
369 | path = sym_ext[offset].path; |
370 | percent = sym_ext[offset].percent; | |
371 | } else if (sym->hist_sum) | |
0b73da3f IM |
372 | percent = 100.0 * hits / sym->hist_sum; |
373 | ||
1e11fd82 | 374 | color = get_percent_color(percent); |
0b73da3f | 375 | |
301406b9 FW |
376 | /* |
377 | * Also color the filename and line if needed, with | |
378 | * the same color than the percentage. Don't print it | |
379 | * twice for close colored ip with the same filename:line | |
380 | */ | |
381 | if (path) { | |
382 | if (!prev_line || strcmp(prev_line, path) | |
383 | || color != prev_color) { | |
384 | color_fprintf(stdout, color, " %s", path); | |
385 | prev_line = path; | |
386 | prev_color = color; | |
387 | } | |
388 | } | |
389 | ||
0b73da3f IM |
390 | color_fprintf(stdout, color, " %7.2f", percent); |
391 | printf(" : "); | |
392 | color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", line); | |
393 | } else { | |
394 | if (!*line) | |
395 | printf(" :\n"); | |
396 | else | |
397 | printf(" : %s\n", line); | |
398 | } | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
971738f3 FW |
403 | static struct rb_root root_sym_ext; |
404 | ||
405 | static void insert_source_line(struct sym_ext *sym_ext) | |
406 | { | |
407 | struct sym_ext *iter; | |
408 | struct rb_node **p = &root_sym_ext.rb_node; | |
409 | struct rb_node *parent = NULL; | |
410 | ||
411 | while (*p != NULL) { | |
412 | parent = *p; | |
413 | iter = rb_entry(parent, struct sym_ext, node); | |
414 | ||
415 | if (sym_ext->percent > iter->percent) | |
416 | p = &(*p)->rb_left; | |
417 | else | |
418 | p = &(*p)->rb_right; | |
419 | } | |
420 | ||
421 | rb_link_node(&sym_ext->node, parent, p); | |
422 | rb_insert_color(&sym_ext->node, &root_sym_ext); | |
423 | } | |
424 | ||
301406b9 FW |
425 | static void free_source_line(struct symbol *sym, int len) |
426 | { | |
427 | struct sym_ext *sym_ext = sym->priv; | |
428 | int i; | |
429 | ||
430 | if (!sym_ext) | |
431 | return; | |
432 | ||
433 | for (i = 0; i < len; i++) | |
434 | free(sym_ext[i].path); | |
435 | free(sym_ext); | |
436 | ||
437 | sym->priv = NULL; | |
971738f3 | 438 | root_sym_ext = RB_ROOT; |
301406b9 FW |
439 | } |
440 | ||
441 | /* Get the filename:line for the colored entries */ | |
c17c2db1 | 442 | static void |
439d473b | 443 | get_source_line(struct symbol *sym, int len, const char *filename) |
301406b9 FW |
444 | { |
445 | int i; | |
446 | char cmd[PATH_MAX * 2]; | |
447 | struct sym_ext *sym_ext; | |
448 | ||
449 | if (!sym->hist_sum) | |
450 | return; | |
451 | ||
452 | sym->priv = calloc(len, sizeof(struct sym_ext)); | |
453 | if (!sym->priv) | |
454 | return; | |
455 | ||
456 | sym_ext = sym->priv; | |
457 | ||
458 | for (i = 0; i < len; i++) { | |
459 | char *path = NULL; | |
460 | size_t line_len; | |
9cffa8d5 | 461 | u64 offset; |
301406b9 FW |
462 | FILE *fp; |
463 | ||
464 | sym_ext[i].percent = 100.0 * sym->hist[i] / sym->hist_sum; | |
465 | if (sym_ext[i].percent <= 0.5) | |
466 | continue; | |
467 | ||
439d473b | 468 | offset = sym->start + i; |
c17c2db1 | 469 | sprintf(cmd, "addr2line -e %s %016llx", filename, offset); |
301406b9 FW |
470 | fp = popen(cmd, "r"); |
471 | if (!fp) | |
472 | continue; | |
473 | ||
474 | if (getline(&path, &line_len, fp) < 0 || !line_len) | |
475 | goto next; | |
476 | ||
c17c2db1 | 477 | sym_ext[i].path = malloc(sizeof(char) * line_len + 1); |
301406b9 FW |
478 | if (!sym_ext[i].path) |
479 | goto next; | |
480 | ||
481 | strcpy(sym_ext[i].path, path); | |
971738f3 | 482 | insert_source_line(&sym_ext[i]); |
301406b9 FW |
483 | |
484 | next: | |
485 | pclose(fp); | |
486 | } | |
487 | } | |
488 | ||
83a0944f | 489 | static void print_summary(const char *filename) |
971738f3 FW |
490 | { |
491 | struct sym_ext *sym_ext; | |
492 | struct rb_node *node; | |
493 | ||
494 | printf("\nSorted summary for file %s\n", filename); | |
495 | printf("----------------------------------------------\n\n"); | |
496 | ||
497 | if (RB_EMPTY_ROOT(&root_sym_ext)) { | |
498 | printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); | |
499 | return; | |
500 | } | |
501 | ||
502 | node = rb_first(&root_sym_ext); | |
503 | while (node) { | |
504 | double percent; | |
83a0944f | 505 | const char *color; |
971738f3 FW |
506 | char *path; |
507 | ||
508 | sym_ext = rb_entry(node, struct sym_ext, node); | |
509 | percent = sym_ext->percent; | |
1e11fd82 | 510 | color = get_percent_color(percent); |
971738f3 FW |
511 | path = sym_ext->path; |
512 | ||
513 | color_fprintf(stdout, color, " %7.2f %s", percent, path); | |
514 | node = rb_next(node); | |
515 | } | |
516 | } | |
517 | ||
0b73da3f IM |
518 | static void annotate_sym(struct dso *dso, struct symbol *sym) |
519 | { | |
439d473b ACM |
520 | const char *filename = dso->long_name, *d_filename; |
521 | u64 len; | |
0b73da3f IM |
522 | char command[PATH_MAX*2]; |
523 | FILE *file; | |
524 | ||
525 | if (!filename) | |
526 | return; | |
439d473b | 527 | |
42976487 MG |
528 | if (full_paths) |
529 | d_filename = filename; | |
530 | else | |
531 | d_filename = basename(filename); | |
0b73da3f | 532 | |
0b73da3f IM |
533 | len = sym->end - sym->start; |
534 | ||
971738f3 | 535 | if (print_line) { |
439d473b | 536 | get_source_line(sym, len, filename); |
971738f3 FW |
537 | print_summary(filename); |
538 | } | |
539 | ||
540 | printf("\n\n------------------------------------------------\n"); | |
42976487 | 541 | printf(" Percent | Source code & Disassembly of %s\n", d_filename); |
971738f3 FW |
542 | printf("------------------------------------------------\n"); |
543 | ||
544 | if (verbose >= 2) | |
439d473b ACM |
545 | printf("annotating [%p] %30s : [%p] %30s\n", |
546 | dso, dso->long_name, sym, sym->name); | |
301406b9 | 547 | |
42976487 | 548 | sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s|grep -v %s", |
439d473b | 549 | sym->start, sym->end, filename, filename); |
0b73da3f IM |
550 | |
551 | if (verbose >= 3) | |
552 | printf("doing: %s\n", command); | |
553 | ||
554 | file = popen(command, "r"); | |
555 | if (!file) | |
556 | return; | |
557 | ||
558 | while (!feof(file)) { | |
439d473b | 559 | if (parse_line(file, sym, len) < 0) |
0b73da3f IM |
560 | break; |
561 | } | |
562 | ||
563 | pclose(file); | |
971738f3 FW |
564 | if (print_line) |
565 | free_source_line(sym, len); | |
0b73da3f IM |
566 | } |
567 | ||
568 | static void find_annotations(void) | |
569 | { | |
570 | struct rb_node *nd; | |
571 | struct dso *dso; | |
572 | int count = 0; | |
573 | ||
574 | list_for_each_entry(dso, &dsos, node) { | |
575 | ||
576 | for (nd = rb_first(&dso->syms); nd; nd = rb_next(nd)) { | |
577 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
578 | ||
579 | if (sym->hist) { | |
580 | annotate_sym(dso, sym); | |
581 | count++; | |
582 | } | |
583 | } | |
584 | } | |
585 | ||
586 | if (!count) | |
587 | printf(" Error: symbol '%s' not present amongst the samples.\n", sym_hist_filter); | |
588 | } | |
589 | ||
8035e428 IM |
590 | static int __cmd_annotate(void) |
591 | { | |
592 | int ret, rc = EXIT_FAILURE; | |
593 | unsigned long offset = 0; | |
594 | unsigned long head = 0; | |
83a0944f | 595 | struct stat input_stat; |
8035e428 IM |
596 | event_t *event; |
597 | uint32_t size; | |
598 | char *buf; | |
599 | ||
5b447a6a | 600 | register_idle_thread(&threads, &last_match); |
8035e428 IM |
601 | |
602 | input = open(input_name, O_RDONLY); | |
603 | if (input < 0) { | |
604 | perror("failed to open file"); | |
605 | exit(-1); | |
606 | } | |
607 | ||
83a0944f | 608 | ret = fstat(input, &input_stat); |
8035e428 IM |
609 | if (ret < 0) { |
610 | perror("failed to stat file"); | |
611 | exit(-1); | |
612 | } | |
613 | ||
119e7a22 PH |
614 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { |
615 | fprintf(stderr, "file: %s not owned by current user or root\n", input_name); | |
fa6963b2 PZ |
616 | exit(-1); |
617 | } | |
618 | ||
83a0944f | 619 | if (!input_stat.st_size) { |
8035e428 IM |
620 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
621 | exit(0); | |
622 | } | |
623 | ||
624 | if (load_kernel() < 0) { | |
625 | perror("failed to load kernel symbols"); | |
626 | return EXIT_FAILURE; | |
627 | } | |
628 | ||
8035e428 IM |
629 | remap: |
630 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, | |
631 | MAP_SHARED, input, offset); | |
632 | if (buf == MAP_FAILED) { | |
633 | perror("failed to mmap file"); | |
634 | exit(-1); | |
635 | } | |
636 | ||
637 | more: | |
638 | event = (event_t *)(buf + head); | |
639 | ||
640 | size = event->header.size; | |
641 | if (!size) | |
642 | size = 8; | |
643 | ||
644 | if (head + event->header.size >= page_size * mmap_window) { | |
645 | unsigned long shift = page_size * (head / page_size); | |
83a0944f | 646 | int munmap_ret; |
8035e428 | 647 | |
83a0944f IM |
648 | munmap_ret = munmap(buf, page_size * mmap_window); |
649 | assert(munmap_ret == 0); | |
8035e428 IM |
650 | |
651 | offset += shift; | |
652 | head -= shift; | |
653 | goto remap; | |
654 | } | |
655 | ||
656 | size = event->header.size; | |
657 | ||
2cec19d9 | 658 | dump_printf("%p [%p]: event: %d\n", |
8035e428 IM |
659 | (void *)(offset + head), |
660 | (void *)(long)event->header.size, | |
661 | event->header.type); | |
662 | ||
663 | if (!size || process_event(event, offset, head) < 0) { | |
664 | ||
2cec19d9 | 665 | dump_printf("%p [%p]: skipping unknown header type: %d\n", |
8035e428 IM |
666 | (void *)(offset + head), |
667 | (void *)(long)(event->header.size), | |
668 | event->header.type); | |
669 | ||
670 | total_unknown++; | |
671 | ||
672 | /* | |
673 | * assume we lost track of the stream, check alignment, and | |
674 | * increment a single u64 in the hope to catch on again 'soon'. | |
675 | */ | |
676 | ||
677 | if (unlikely(head & 7)) | |
678 | head &= ~7ULL; | |
679 | ||
680 | size = 8; | |
681 | } | |
682 | ||
683 | head += size; | |
684 | ||
83a0944f | 685 | if (offset + head < (unsigned long)input_stat.st_size) |
8035e428 IM |
686 | goto more; |
687 | ||
688 | rc = EXIT_SUCCESS; | |
689 | close(input); | |
690 | ||
2cec19d9 FW |
691 | dump_printf(" IP events: %10ld\n", total); |
692 | dump_printf(" mmap events: %10ld\n", total_mmap); | |
693 | dump_printf(" comm events: %10ld\n", total_comm); | |
694 | dump_printf(" fork events: %10ld\n", total_fork); | |
695 | dump_printf(" unknown events: %10ld\n", total_unknown); | |
8035e428 IM |
696 | |
697 | if (dump_trace) | |
698 | return 0; | |
699 | ||
700 | if (verbose >= 3) | |
6baa0a5a | 701 | threads__fprintf(stdout, &threads); |
8035e428 IM |
702 | |
703 | if (verbose >= 2) | |
704 | dsos__fprintf(stdout); | |
705 | ||
706 | collapse__resort(); | |
3d1d07ec | 707 | output__resort(total); |
0b73da3f IM |
708 | |
709 | find_annotations(); | |
8035e428 IM |
710 | |
711 | return rc; | |
712 | } | |
713 | ||
714 | static const char * const annotate_usage[] = { | |
715 | "perf annotate [<options>] <command>", | |
716 | NULL | |
717 | }; | |
718 | ||
719 | static const struct option options[] = { | |
720 | OPT_STRING('i', "input", &input_name, "file", | |
721 | "input file name"), | |
23b87116 | 722 | OPT_STRING('s', "symbol", &sym_hist_filter, "symbol", |
0b73da3f | 723 | "symbol to annotate"), |
fa6963b2 | 724 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), |
8035e428 IM |
725 | OPT_BOOLEAN('v', "verbose", &verbose, |
726 | "be more verbose (show symbol address, etc)"), | |
727 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | |
728 | "dump raw trace in ASCII"), | |
83a0944f | 729 | OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"), |
42976487 MG |
730 | OPT_BOOLEAN('m', "modules", &modules, |
731 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
301406b9 FW |
732 | OPT_BOOLEAN('l', "print-line", &print_line, |
733 | "print matching source lines (may be slow)"), | |
42976487 MG |
734 | OPT_BOOLEAN('P', "full-paths", &full_paths, |
735 | "Don't shorten the displayed pathnames"), | |
8035e428 IM |
736 | OPT_END() |
737 | }; | |
738 | ||
739 | static void setup_sorting(void) | |
740 | { | |
741 | char *tmp, *tok, *str = strdup(sort_order); | |
742 | ||
743 | for (tok = strtok_r(str, ", ", &tmp); | |
744 | tok; tok = strtok_r(NULL, ", ", &tmp)) { | |
745 | if (sort_dimension__add(tok) < 0) { | |
746 | error("Unknown --sort key: `%s'", tok); | |
747 | usage_with_options(annotate_usage, options); | |
748 | } | |
749 | } | |
750 | ||
751 | free(str); | |
752 | } | |
753 | ||
f37a291c | 754 | int cmd_annotate(int argc, const char **argv, const char *prefix __used) |
8035e428 IM |
755 | { |
756 | symbol__init(); | |
757 | ||
758 | page_size = getpagesize(); | |
759 | ||
760 | argc = parse_options(argc, argv, options, annotate_usage, 0); | |
761 | ||
762 | setup_sorting(); | |
763 | ||
0b73da3f IM |
764 | if (argc) { |
765 | /* | |
766 | * Special case: if there's an argument left then assume tha | |
767 | * it's a symbol filter: | |
768 | */ | |
769 | if (argc > 1) | |
770 | usage_with_options(annotate_usage, options); | |
771 | ||
772 | sym_hist_filter = argv[0]; | |
773 | } | |
774 | ||
775 | if (!sym_hist_filter) | |
8035e428 IM |
776 | usage_with_options(annotate_usage, options); |
777 | ||
778 | setup_pager(); | |
779 | ||
dd68ada2 JK |
780 | if (field_sep && *field_sep == '.') { |
781 | fputs("'.' is the only non valid --field-separator argument\n", | |
782 | stderr); | |
783 | exit(129); | |
784 | } | |
785 | ||
8035e428 IM |
786 | return __cmd_annotate(); |
787 | } |