]>
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 | 31 | static int input; |
8035e428 | 32 | |
42976487 MG |
33 | static int full_paths; |
34 | ||
301406b9 FW |
35 | static int print_line; |
36 | ||
8035e428 IM |
37 | static unsigned long page_size; |
38 | static unsigned long mmap_window = 32; | |
39 | ||
6baa0a5a FW |
40 | static struct rb_root threads; |
41 | static struct thread *last_match; | |
42 | ||
301406b9 FW |
43 | |
44 | struct sym_ext { | |
971738f3 | 45 | struct rb_node node; |
301406b9 FW |
46 | double percent; |
47 | char *path; | |
48 | }; | |
49 | ||
8035e428 | 50 | |
0b73da3f IM |
51 | /* |
52 | * collect histogram counts | |
53 | */ | |
9cffa8d5 | 54 | static void hist_hit(struct hist_entry *he, u64 ip) |
8035e428 | 55 | { |
0b73da3f IM |
56 | unsigned int sym_size, offset; |
57 | struct symbol *sym = he->sym; | |
8035e428 | 58 | |
0b73da3f | 59 | he->count++; |
8035e428 | 60 | |
0b73da3f IM |
61 | if (!sym || !sym->hist) |
62 | return; | |
8035e428 | 63 | |
0b73da3f | 64 | sym_size = sym->end - sym->start; |
439d473b | 65 | ip = he->map->map_ip(he->map, ip); |
0b73da3f | 66 | offset = ip - sym->start; |
8035e428 | 67 | |
0b73da3f IM |
68 | if (offset >= sym_size) |
69 | return; | |
8035e428 | 70 | |
0b73da3f IM |
71 | sym->hist_sum++; |
72 | sym->hist[offset]++; | |
8035e428 | 73 | |
0b73da3f IM |
74 | if (verbose >= 3) |
75 | printf("%p %s: count++ [ip: %p, %08Lx] => %Ld\n", | |
7d37a0cb | 76 | (void *)(unsigned long)he->sym->start, |
0b73da3f | 77 | he->sym->name, |
7d37a0cb | 78 | (void *)(unsigned long)ip, ip - he->sym->start, |
0b73da3f | 79 | sym->hist[offset]); |
8035e428 IM |
80 | } |
81 | ||
9735abf1 ACM |
82 | static int hist_entry__add(struct thread *thread, struct map *map, |
83 | struct symbol *sym, u64 ip, u64 count, char level) | |
8035e428 | 84 | { |
9735abf1 ACM |
85 | bool hit; |
86 | struct hist_entry *he = __hist_entry__add(thread, map, sym, NULL, ip, | |
87 | count, level, &hit); | |
88 | if (he == NULL) | |
8035e428 | 89 | return -ENOMEM; |
9735abf1 ACM |
90 | if (hit) |
91 | hist_hit(he, ip); | |
8035e428 IM |
92 | return 0; |
93 | } | |
94 | ||
8035e428 | 95 | static int |
e6e18ec7 | 96 | process_sample_event(event_t *event, unsigned long offset, unsigned long head) |
8035e428 IM |
97 | { |
98 | char level; | |
6baa0a5a | 99 | struct thread *thread; |
9cffa8d5 | 100 | u64 ip = event->ip.ip; |
8035e428 | 101 | struct map *map = NULL; |
439d473b | 102 | struct symbol *sym = NULL; |
8035e428 | 103 | |
6baa0a5a FW |
104 | thread = threads__findnew(event->ip.pid, &threads, &last_match); |
105 | ||
2cec19d9 | 106 | dump_printf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n", |
8035e428 IM |
107 | (void *)(offset + head), |
108 | (void *)(long)(event->header.size), | |
109 | event->header.misc, | |
110 | event->ip.pid, | |
111 | (void *)(long)ip); | |
112 | ||
2cec19d9 | 113 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
8035e428 IM |
114 | |
115 | if (thread == NULL) { | |
116 | fprintf(stderr, "problem processing %d event, skipping it.\n", | |
117 | event->header.type); | |
118 | return -1; | |
119 | } | |
120 | ||
cdd6c482 | 121 | if (event->header.misc & PERF_RECORD_MISC_KERNEL) { |
8035e428 | 122 | level = 'k'; |
439d473b ACM |
123 | sym = kernel_maps__find_symbol(ip, &map); |
124 | dump_printf(" ...... dso: %s\n", | |
125 | map ? map->dso->long_name : "<not found>"); | |
cdd6c482 | 126 | } else if (event->header.misc & PERF_RECORD_MISC_USER) { |
8035e428 | 127 | level = '.'; |
8035e428 IM |
128 | map = thread__find_map(thread, ip); |
129 | if (map != NULL) { | |
439d473b | 130 | got_map: |
8035e428 | 131 | ip = map->map_ip(map, ip); |
439d473b | 132 | sym = map->dso->find_symbol(map->dso, ip); |
8035e428 IM |
133 | } else { |
134 | /* | |
135 | * If this is outside of all known maps, | |
136 | * and is a negative address, try to look it | |
137 | * up in the kernel dso, as it might be a | |
439d473b ACM |
138 | * vsyscall or vdso (which executes in user-mode). |
139 | * | |
140 | * XXX This is nasty, we should have a symbol list in | |
141 | * the "[vdso]" dso, but for now lets use the old | |
142 | * trick of looking in the whole kernel symbol list. | |
8035e428 | 143 | */ |
439d473b ACM |
144 | if ((long long)ip < 0) { |
145 | map = kernel_map; | |
146 | goto got_map; | |
147 | } | |
8035e428 | 148 | } |
439d473b ACM |
149 | dump_printf(" ...... dso: %s\n", |
150 | map ? map->dso->long_name : "<not found>"); | |
8035e428 | 151 | } else { |
8035e428 | 152 | level = 'H'; |
2cec19d9 | 153 | dump_printf(" ...... dso: [hypervisor]\n"); |
8035e428 IM |
154 | } |
155 | ||
ec218fc4 ACM |
156 | if (hist_entry__add(thread, map, sym, ip, 1, level)) { |
157 | fprintf(stderr, "problem incrementing symbol count, " | |
158 | "skipping event\n"); | |
159 | return -1; | |
8035e428 IM |
160 | } |
161 | total++; | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
166 | static int | |
167 | process_mmap_event(event_t *event, unsigned long offset, unsigned long head) | |
168 | { | |
6baa0a5a | 169 | struct thread *thread; |
66e274f3 | 170 | struct map *map = map__new(&event->mmap, NULL, 0); |
8035e428 | 171 | |
6baa0a5a FW |
172 | thread = threads__findnew(event->mmap.pid, &threads, &last_match); |
173 | ||
cdd6c482 | 174 | dump_printf("%p [%p]: PERF_RECORD_MMAP %d: [%p(%p) @ %p]: %s\n", |
8035e428 IM |
175 | (void *)(offset + head), |
176 | (void *)(long)(event->header.size), | |
177 | event->mmap.pid, | |
178 | (void *)(long)event->mmap.start, | |
179 | (void *)(long)event->mmap.len, | |
180 | (void *)(long)event->mmap.pgoff, | |
181 | event->mmap.filename); | |
182 | ||
183 | if (thread == NULL || map == NULL) { | |
cdd6c482 | 184 | dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n"); |
8035e428 IM |
185 | return 0; |
186 | } | |
187 | ||
188 | thread__insert_map(thread, map); | |
189 | total_mmap++; | |
190 | ||
191 | return 0; | |
192 | } | |
193 | ||
194 | static int | |
195 | process_comm_event(event_t *event, unsigned long offset, unsigned long head) | |
196 | { | |
6baa0a5a | 197 | struct thread *thread; |
8035e428 | 198 | |
6baa0a5a | 199 | thread = threads__findnew(event->comm.pid, &threads, &last_match); |
cdd6c482 | 200 | dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n", |
8035e428 IM |
201 | (void *)(offset + head), |
202 | (void *)(long)(event->header.size), | |
203 | event->comm.comm, event->comm.pid); | |
204 | ||
205 | if (thread == NULL || | |
206 | thread__set_comm(thread, event->comm.comm)) { | |
cdd6c482 | 207 | dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); |
8035e428 IM |
208 | return -1; |
209 | } | |
210 | total_comm++; | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
215 | static int | |
216 | process_fork_event(event_t *event, unsigned long offset, unsigned long head) | |
217 | { | |
6baa0a5a FW |
218 | struct thread *thread; |
219 | struct thread *parent; | |
8035e428 | 220 | |
6baa0a5a FW |
221 | thread = threads__findnew(event->fork.pid, &threads, &last_match); |
222 | parent = threads__findnew(event->fork.ppid, &threads, &last_match); | |
cdd6c482 | 223 | dump_printf("%p [%p]: PERF_RECORD_FORK: %d:%d\n", |
8035e428 IM |
224 | (void *)(offset + head), |
225 | (void *)(long)(event->header.size), | |
226 | event->fork.pid, event->fork.ppid); | |
227 | ||
15f3fa4e IM |
228 | /* |
229 | * A thread clone will have the same PID for both | |
230 | * parent and child. | |
231 | */ | |
232 | if (thread == parent) | |
233 | return 0; | |
234 | ||
8035e428 | 235 | if (!thread || !parent || thread__fork(thread, parent)) { |
cdd6c482 | 236 | dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n"); |
8035e428 IM |
237 | return -1; |
238 | } | |
239 | total_fork++; | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
8035e428 IM |
244 | static int |
245 | process_event(event_t *event, unsigned long offset, unsigned long head) | |
246 | { | |
8035e428 | 247 | switch (event->header.type) { |
cdd6c482 | 248 | case PERF_RECORD_SAMPLE: |
e6e18ec7 PZ |
249 | return process_sample_event(event, offset, head); |
250 | ||
cdd6c482 | 251 | case PERF_RECORD_MMAP: |
8035e428 IM |
252 | return process_mmap_event(event, offset, head); |
253 | ||
cdd6c482 | 254 | case PERF_RECORD_COMM: |
8035e428 IM |
255 | return process_comm_event(event, offset, head); |
256 | ||
cdd6c482 | 257 | case PERF_RECORD_FORK: |
8035e428 | 258 | return process_fork_event(event, offset, head); |
8035e428 IM |
259 | /* |
260 | * We dont process them right now but they are fine: | |
261 | */ | |
262 | ||
cdd6c482 IM |
263 | case PERF_RECORD_THROTTLE: |
264 | case PERF_RECORD_UNTHROTTLE: | |
8035e428 IM |
265 | return 0; |
266 | ||
267 | default: | |
268 | return -1; | |
269 | } | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
0b73da3f | 274 | static int |
439d473b | 275 | parse_line(FILE *file, struct symbol *sym, u64 len) |
0b73da3f IM |
276 | { |
277 | char *line = NULL, *tmp, *tmp2; | |
301406b9 FW |
278 | static const char *prev_line; |
279 | static const char *prev_color; | |
0b73da3f IM |
280 | unsigned int offset; |
281 | size_t line_len; | |
f37a291c | 282 | s64 line_ip; |
0b73da3f IM |
283 | int ret; |
284 | char *c; | |
285 | ||
286 | if (getline(&line, &line_len, file) < 0) | |
287 | return -1; | |
288 | if (!line) | |
289 | return -1; | |
290 | ||
291 | c = strchr(line, '\n'); | |
292 | if (c) | |
293 | *c = 0; | |
294 | ||
295 | line_ip = -1; | |
296 | offset = 0; | |
297 | ret = -2; | |
298 | ||
299 | /* | |
300 | * Strip leading spaces: | |
301 | */ | |
302 | tmp = line; | |
303 | while (*tmp) { | |
304 | if (*tmp != ' ') | |
305 | break; | |
306 | tmp++; | |
307 | } | |
308 | ||
309 | if (*tmp) { | |
310 | /* | |
311 | * Parse hexa addresses followed by ':' | |
312 | */ | |
313 | line_ip = strtoull(tmp, &tmp2, 16); | |
314 | if (*tmp2 != ':') | |
315 | line_ip = -1; | |
316 | } | |
317 | ||
318 | if (line_ip != -1) { | |
301406b9 | 319 | const char *path = NULL; |
0b73da3f IM |
320 | unsigned int hits = 0; |
321 | double percent = 0.0; | |
83a0944f | 322 | const char *color; |
301406b9 | 323 | struct sym_ext *sym_ext = sym->priv; |
0b73da3f | 324 | |
439d473b | 325 | offset = line_ip - sym->start; |
0b73da3f IM |
326 | if (offset < len) |
327 | hits = sym->hist[offset]; | |
328 | ||
c17c2db1 | 329 | if (offset < len && sym_ext) { |
301406b9 FW |
330 | path = sym_ext[offset].path; |
331 | percent = sym_ext[offset].percent; | |
332 | } else if (sym->hist_sum) | |
0b73da3f IM |
333 | percent = 100.0 * hits / sym->hist_sum; |
334 | ||
1e11fd82 | 335 | color = get_percent_color(percent); |
0b73da3f | 336 | |
301406b9 FW |
337 | /* |
338 | * Also color the filename and line if needed, with | |
339 | * the same color than the percentage. Don't print it | |
340 | * twice for close colored ip with the same filename:line | |
341 | */ | |
342 | if (path) { | |
343 | if (!prev_line || strcmp(prev_line, path) | |
344 | || color != prev_color) { | |
345 | color_fprintf(stdout, color, " %s", path); | |
346 | prev_line = path; | |
347 | prev_color = color; | |
348 | } | |
349 | } | |
350 | ||
0b73da3f IM |
351 | color_fprintf(stdout, color, " %7.2f", percent); |
352 | printf(" : "); | |
353 | color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", line); | |
354 | } else { | |
355 | if (!*line) | |
356 | printf(" :\n"); | |
357 | else | |
358 | printf(" : %s\n", line); | |
359 | } | |
360 | ||
361 | return 0; | |
362 | } | |
363 | ||
971738f3 FW |
364 | static struct rb_root root_sym_ext; |
365 | ||
366 | static void insert_source_line(struct sym_ext *sym_ext) | |
367 | { | |
368 | struct sym_ext *iter; | |
369 | struct rb_node **p = &root_sym_ext.rb_node; | |
370 | struct rb_node *parent = NULL; | |
371 | ||
372 | while (*p != NULL) { | |
373 | parent = *p; | |
374 | iter = rb_entry(parent, struct sym_ext, node); | |
375 | ||
376 | if (sym_ext->percent > iter->percent) | |
377 | p = &(*p)->rb_left; | |
378 | else | |
379 | p = &(*p)->rb_right; | |
380 | } | |
381 | ||
382 | rb_link_node(&sym_ext->node, parent, p); | |
383 | rb_insert_color(&sym_ext->node, &root_sym_ext); | |
384 | } | |
385 | ||
301406b9 FW |
386 | static void free_source_line(struct symbol *sym, int len) |
387 | { | |
388 | struct sym_ext *sym_ext = sym->priv; | |
389 | int i; | |
390 | ||
391 | if (!sym_ext) | |
392 | return; | |
393 | ||
394 | for (i = 0; i < len; i++) | |
395 | free(sym_ext[i].path); | |
396 | free(sym_ext); | |
397 | ||
398 | sym->priv = NULL; | |
971738f3 | 399 | root_sym_ext = RB_ROOT; |
301406b9 FW |
400 | } |
401 | ||
402 | /* Get the filename:line for the colored entries */ | |
c17c2db1 | 403 | static void |
439d473b | 404 | get_source_line(struct symbol *sym, int len, const char *filename) |
301406b9 FW |
405 | { |
406 | int i; | |
407 | char cmd[PATH_MAX * 2]; | |
408 | struct sym_ext *sym_ext; | |
409 | ||
410 | if (!sym->hist_sum) | |
411 | return; | |
412 | ||
413 | sym->priv = calloc(len, sizeof(struct sym_ext)); | |
414 | if (!sym->priv) | |
415 | return; | |
416 | ||
417 | sym_ext = sym->priv; | |
418 | ||
419 | for (i = 0; i < len; i++) { | |
420 | char *path = NULL; | |
421 | size_t line_len; | |
9cffa8d5 | 422 | u64 offset; |
301406b9 FW |
423 | FILE *fp; |
424 | ||
425 | sym_ext[i].percent = 100.0 * sym->hist[i] / sym->hist_sum; | |
426 | if (sym_ext[i].percent <= 0.5) | |
427 | continue; | |
428 | ||
439d473b | 429 | offset = sym->start + i; |
c17c2db1 | 430 | sprintf(cmd, "addr2line -e %s %016llx", filename, offset); |
301406b9 FW |
431 | fp = popen(cmd, "r"); |
432 | if (!fp) | |
433 | continue; | |
434 | ||
435 | if (getline(&path, &line_len, fp) < 0 || !line_len) | |
436 | goto next; | |
437 | ||
c17c2db1 | 438 | sym_ext[i].path = malloc(sizeof(char) * line_len + 1); |
301406b9 FW |
439 | if (!sym_ext[i].path) |
440 | goto next; | |
441 | ||
442 | strcpy(sym_ext[i].path, path); | |
971738f3 | 443 | insert_source_line(&sym_ext[i]); |
301406b9 FW |
444 | |
445 | next: | |
446 | pclose(fp); | |
447 | } | |
448 | } | |
449 | ||
83a0944f | 450 | static void print_summary(const char *filename) |
971738f3 FW |
451 | { |
452 | struct sym_ext *sym_ext; | |
453 | struct rb_node *node; | |
454 | ||
455 | printf("\nSorted summary for file %s\n", filename); | |
456 | printf("----------------------------------------------\n\n"); | |
457 | ||
458 | if (RB_EMPTY_ROOT(&root_sym_ext)) { | |
459 | printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); | |
460 | return; | |
461 | } | |
462 | ||
463 | node = rb_first(&root_sym_ext); | |
464 | while (node) { | |
465 | double percent; | |
83a0944f | 466 | const char *color; |
971738f3 FW |
467 | char *path; |
468 | ||
469 | sym_ext = rb_entry(node, struct sym_ext, node); | |
470 | percent = sym_ext->percent; | |
1e11fd82 | 471 | color = get_percent_color(percent); |
971738f3 FW |
472 | path = sym_ext->path; |
473 | ||
474 | color_fprintf(stdout, color, " %7.2f %s", percent, path); | |
475 | node = rb_next(node); | |
476 | } | |
477 | } | |
478 | ||
0b73da3f IM |
479 | static void annotate_sym(struct dso *dso, struct symbol *sym) |
480 | { | |
439d473b ACM |
481 | const char *filename = dso->long_name, *d_filename; |
482 | u64 len; | |
0b73da3f IM |
483 | char command[PATH_MAX*2]; |
484 | FILE *file; | |
485 | ||
486 | if (!filename) | |
487 | return; | |
439d473b | 488 | |
42976487 MG |
489 | if (full_paths) |
490 | d_filename = filename; | |
491 | else | |
492 | d_filename = basename(filename); | |
0b73da3f | 493 | |
0b73da3f IM |
494 | len = sym->end - sym->start; |
495 | ||
971738f3 | 496 | if (print_line) { |
439d473b | 497 | get_source_line(sym, len, filename); |
971738f3 FW |
498 | print_summary(filename); |
499 | } | |
500 | ||
501 | printf("\n\n------------------------------------------------\n"); | |
42976487 | 502 | printf(" Percent | Source code & Disassembly of %s\n", d_filename); |
971738f3 FW |
503 | printf("------------------------------------------------\n"); |
504 | ||
505 | if (verbose >= 2) | |
439d473b ACM |
506 | printf("annotating [%p] %30s : [%p] %30s\n", |
507 | dso, dso->long_name, sym, sym->name); | |
301406b9 | 508 | |
42976487 | 509 | sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s|grep -v %s", |
439d473b | 510 | sym->start, sym->end, filename, filename); |
0b73da3f IM |
511 | |
512 | if (verbose >= 3) | |
513 | printf("doing: %s\n", command); | |
514 | ||
515 | file = popen(command, "r"); | |
516 | if (!file) | |
517 | return; | |
518 | ||
519 | while (!feof(file)) { | |
439d473b | 520 | if (parse_line(file, sym, len) < 0) |
0b73da3f IM |
521 | break; |
522 | } | |
523 | ||
524 | pclose(file); | |
971738f3 FW |
525 | if (print_line) |
526 | free_source_line(sym, len); | |
0b73da3f IM |
527 | } |
528 | ||
529 | static void find_annotations(void) | |
530 | { | |
531 | struct rb_node *nd; | |
532 | struct dso *dso; | |
533 | int count = 0; | |
534 | ||
535 | list_for_each_entry(dso, &dsos, node) { | |
536 | ||
537 | for (nd = rb_first(&dso->syms); nd; nd = rb_next(nd)) { | |
538 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
539 | ||
540 | if (sym->hist) { | |
541 | annotate_sym(dso, sym); | |
542 | count++; | |
543 | } | |
544 | } | |
545 | } | |
546 | ||
547 | if (!count) | |
548 | printf(" Error: symbol '%s' not present amongst the samples.\n", sym_hist_filter); | |
549 | } | |
550 | ||
8035e428 IM |
551 | static int __cmd_annotate(void) |
552 | { | |
553 | int ret, rc = EXIT_FAILURE; | |
554 | unsigned long offset = 0; | |
555 | unsigned long head = 0; | |
83a0944f | 556 | struct stat input_stat; |
8035e428 IM |
557 | event_t *event; |
558 | uint32_t size; | |
559 | char *buf; | |
560 | ||
5b447a6a | 561 | register_idle_thread(&threads, &last_match); |
8035e428 IM |
562 | |
563 | input = open(input_name, O_RDONLY); | |
564 | if (input < 0) { | |
565 | perror("failed to open file"); | |
566 | exit(-1); | |
567 | } | |
568 | ||
83a0944f | 569 | ret = fstat(input, &input_stat); |
8035e428 IM |
570 | if (ret < 0) { |
571 | perror("failed to stat file"); | |
572 | exit(-1); | |
573 | } | |
574 | ||
119e7a22 PH |
575 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { |
576 | fprintf(stderr, "file: %s not owned by current user or root\n", input_name); | |
fa6963b2 PZ |
577 | exit(-1); |
578 | } | |
579 | ||
83a0944f | 580 | if (!input_stat.st_size) { |
8035e428 IM |
581 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
582 | exit(0); | |
583 | } | |
584 | ||
585 | if (load_kernel() < 0) { | |
586 | perror("failed to load kernel symbols"); | |
587 | return EXIT_FAILURE; | |
588 | } | |
589 | ||
8035e428 IM |
590 | remap: |
591 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, | |
592 | MAP_SHARED, input, offset); | |
593 | if (buf == MAP_FAILED) { | |
594 | perror("failed to mmap file"); | |
595 | exit(-1); | |
596 | } | |
597 | ||
598 | more: | |
599 | event = (event_t *)(buf + head); | |
600 | ||
601 | size = event->header.size; | |
602 | if (!size) | |
603 | size = 8; | |
604 | ||
605 | if (head + event->header.size >= page_size * mmap_window) { | |
606 | unsigned long shift = page_size * (head / page_size); | |
83a0944f | 607 | int munmap_ret; |
8035e428 | 608 | |
83a0944f IM |
609 | munmap_ret = munmap(buf, page_size * mmap_window); |
610 | assert(munmap_ret == 0); | |
8035e428 IM |
611 | |
612 | offset += shift; | |
613 | head -= shift; | |
614 | goto remap; | |
615 | } | |
616 | ||
617 | size = event->header.size; | |
618 | ||
2cec19d9 | 619 | dump_printf("%p [%p]: event: %d\n", |
8035e428 IM |
620 | (void *)(offset + head), |
621 | (void *)(long)event->header.size, | |
622 | event->header.type); | |
623 | ||
624 | if (!size || process_event(event, offset, head) < 0) { | |
625 | ||
2cec19d9 | 626 | dump_printf("%p [%p]: skipping unknown header type: %d\n", |
8035e428 IM |
627 | (void *)(offset + head), |
628 | (void *)(long)(event->header.size), | |
629 | event->header.type); | |
630 | ||
631 | total_unknown++; | |
632 | ||
633 | /* | |
634 | * assume we lost track of the stream, check alignment, and | |
635 | * increment a single u64 in the hope to catch on again 'soon'. | |
636 | */ | |
637 | ||
638 | if (unlikely(head & 7)) | |
639 | head &= ~7ULL; | |
640 | ||
641 | size = 8; | |
642 | } | |
643 | ||
644 | head += size; | |
645 | ||
83a0944f | 646 | if (offset + head < (unsigned long)input_stat.st_size) |
8035e428 IM |
647 | goto more; |
648 | ||
649 | rc = EXIT_SUCCESS; | |
650 | close(input); | |
651 | ||
2cec19d9 FW |
652 | dump_printf(" IP events: %10ld\n", total); |
653 | dump_printf(" mmap events: %10ld\n", total_mmap); | |
654 | dump_printf(" comm events: %10ld\n", total_comm); | |
655 | dump_printf(" fork events: %10ld\n", total_fork); | |
656 | dump_printf(" unknown events: %10ld\n", total_unknown); | |
8035e428 IM |
657 | |
658 | if (dump_trace) | |
659 | return 0; | |
660 | ||
661 | if (verbose >= 3) | |
6baa0a5a | 662 | threads__fprintf(stdout, &threads); |
8035e428 IM |
663 | |
664 | if (verbose >= 2) | |
665 | dsos__fprintf(stdout); | |
666 | ||
667 | collapse__resort(); | |
3d1d07ec | 668 | output__resort(total); |
0b73da3f IM |
669 | |
670 | find_annotations(); | |
8035e428 IM |
671 | |
672 | return rc; | |
673 | } | |
674 | ||
675 | static const char * const annotate_usage[] = { | |
676 | "perf annotate [<options>] <command>", | |
677 | NULL | |
678 | }; | |
679 | ||
680 | static const struct option options[] = { | |
681 | OPT_STRING('i', "input", &input_name, "file", | |
682 | "input file name"), | |
23b87116 | 683 | OPT_STRING('s', "symbol", &sym_hist_filter, "symbol", |
0b73da3f | 684 | "symbol to annotate"), |
fa6963b2 | 685 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), |
8035e428 IM |
686 | OPT_BOOLEAN('v', "verbose", &verbose, |
687 | "be more verbose (show symbol address, etc)"), | |
688 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | |
689 | "dump raw trace in ASCII"), | |
83a0944f | 690 | OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"), |
42976487 MG |
691 | OPT_BOOLEAN('m', "modules", &modules, |
692 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
301406b9 FW |
693 | OPT_BOOLEAN('l', "print-line", &print_line, |
694 | "print matching source lines (may be slow)"), | |
42976487 MG |
695 | OPT_BOOLEAN('P', "full-paths", &full_paths, |
696 | "Don't shorten the displayed pathnames"), | |
8035e428 IM |
697 | OPT_END() |
698 | }; | |
699 | ||
700 | static void setup_sorting(void) | |
701 | { | |
702 | char *tmp, *tok, *str = strdup(sort_order); | |
703 | ||
704 | for (tok = strtok_r(str, ", ", &tmp); | |
705 | tok; tok = strtok_r(NULL, ", ", &tmp)) { | |
706 | if (sort_dimension__add(tok) < 0) { | |
707 | error("Unknown --sort key: `%s'", tok); | |
708 | usage_with_options(annotate_usage, options); | |
709 | } | |
710 | } | |
711 | ||
712 | free(str); | |
713 | } | |
714 | ||
f37a291c | 715 | int cmd_annotate(int argc, const char **argv, const char *prefix __used) |
8035e428 IM |
716 | { |
717 | symbol__init(); | |
718 | ||
719 | page_size = getpagesize(); | |
720 | ||
721 | argc = parse_options(argc, argv, options, annotate_usage, 0); | |
722 | ||
723 | setup_sorting(); | |
724 | ||
0b73da3f IM |
725 | if (argc) { |
726 | /* | |
727 | * Special case: if there's an argument left then assume tha | |
728 | * it's a symbol filter: | |
729 | */ | |
730 | if (argc > 1) | |
731 | usage_with_options(annotate_usage, options); | |
732 | ||
733 | sym_hist_filter = argv[0]; | |
734 | } | |
735 | ||
736 | if (!sym_hist_filter) | |
8035e428 IM |
737 | usage_with_options(annotate_usage, options); |
738 | ||
739 | setup_pager(); | |
740 | ||
dd68ada2 JK |
741 | if (field_sep && *field_sep == '.') { |
742 | fputs("'.' is the only non valid --field-separator argument\n", | |
743 | stderr); | |
744 | exit(129); | |
745 | } | |
746 | ||
8035e428 IM |
747 | return __cmd_annotate(); |
748 | } |