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Commit | Line | Data |
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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 | ||
301406b9 | 40 | struct sym_ext { |
971738f3 | 41 | struct rb_node node; |
301406b9 FW |
42 | double percent; |
43 | char *path; | |
44 | }; | |
45 | ||
8035e428 | 46 | |
0b73da3f IM |
47 | /* |
48 | * collect histogram counts | |
49 | */ | |
9cffa8d5 | 50 | static void hist_hit(struct hist_entry *he, u64 ip) |
8035e428 | 51 | { |
0b73da3f IM |
52 | unsigned int sym_size, offset; |
53 | struct symbol *sym = he->sym; | |
8035e428 | 54 | |
0b73da3f | 55 | he->count++; |
8035e428 | 56 | |
0b73da3f IM |
57 | if (!sym || !sym->hist) |
58 | return; | |
8035e428 | 59 | |
0b73da3f | 60 | sym_size = sym->end - sym->start; |
439d473b | 61 | ip = he->map->map_ip(he->map, ip); |
0b73da3f | 62 | offset = ip - sym->start; |
8035e428 | 63 | |
0b73da3f IM |
64 | if (offset >= sym_size) |
65 | return; | |
8035e428 | 66 | |
0b73da3f IM |
67 | sym->hist_sum++; |
68 | sym->hist[offset]++; | |
8035e428 | 69 | |
0b73da3f IM |
70 | if (verbose >= 3) |
71 | printf("%p %s: count++ [ip: %p, %08Lx] => %Ld\n", | |
7d37a0cb | 72 | (void *)(unsigned long)he->sym->start, |
0b73da3f | 73 | he->sym->name, |
7d37a0cb | 74 | (void *)(unsigned long)ip, ip - he->sym->start, |
0b73da3f | 75 | sym->hist[offset]); |
8035e428 IM |
76 | } |
77 | ||
9735abf1 ACM |
78 | static int hist_entry__add(struct thread *thread, struct map *map, |
79 | struct symbol *sym, u64 ip, u64 count, char level) | |
8035e428 | 80 | { |
9735abf1 ACM |
81 | bool hit; |
82 | struct hist_entry *he = __hist_entry__add(thread, map, sym, NULL, ip, | |
83 | count, level, &hit); | |
84 | if (he == NULL) | |
8035e428 | 85 | return -ENOMEM; |
9735abf1 ACM |
86 | if (hit) |
87 | hist_hit(he, ip); | |
8035e428 IM |
88 | return 0; |
89 | } | |
90 | ||
8035e428 | 91 | static int |
e6e18ec7 | 92 | process_sample_event(event_t *event, unsigned long offset, unsigned long head) |
8035e428 IM |
93 | { |
94 | char level; | |
9cffa8d5 | 95 | u64 ip = event->ip.ip; |
8035e428 | 96 | struct map *map = NULL; |
439d473b | 97 | struct symbol *sym = NULL; |
d5b889f2 | 98 | struct thread *thread = threads__findnew(event->ip.pid); |
6baa0a5a | 99 | |
2cec19d9 | 100 | dump_printf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n", |
8035e428 IM |
101 | (void *)(offset + head), |
102 | (void *)(long)(event->header.size), | |
103 | event->header.misc, | |
104 | event->ip.pid, | |
105 | (void *)(long)ip); | |
106 | ||
8035e428 IM |
107 | if (thread == NULL) { |
108 | fprintf(stderr, "problem processing %d event, skipping it.\n", | |
109 | event->header.type); | |
110 | return -1; | |
111 | } | |
112 | ||
f39cdf25 JL |
113 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
114 | ||
cdd6c482 | 115 | if (event->header.misc & PERF_RECORD_MISC_KERNEL) { |
8035e428 | 116 | level = 'k'; |
439d473b ACM |
117 | sym = kernel_maps__find_symbol(ip, &map); |
118 | dump_printf(" ...... dso: %s\n", | |
119 | map ? map->dso->long_name : "<not found>"); | |
cdd6c482 | 120 | } else if (event->header.misc & PERF_RECORD_MISC_USER) { |
8035e428 | 121 | level = '.'; |
8035e428 IM |
122 | map = thread__find_map(thread, ip); |
123 | if (map != NULL) { | |
439d473b | 124 | got_map: |
8035e428 | 125 | ip = map->map_ip(map, ip); |
439d473b | 126 | sym = map->dso->find_symbol(map->dso, ip); |
8035e428 IM |
127 | } else { |
128 | /* | |
129 | * If this is outside of all known maps, | |
130 | * and is a negative address, try to look it | |
131 | * up in the kernel dso, as it might be a | |
439d473b ACM |
132 | * vsyscall or vdso (which executes in user-mode). |
133 | * | |
134 | * XXX This is nasty, we should have a symbol list in | |
135 | * the "[vdso]" dso, but for now lets use the old | |
136 | * trick of looking in the whole kernel symbol list. | |
8035e428 | 137 | */ |
439d473b ACM |
138 | if ((long long)ip < 0) { |
139 | map = kernel_map; | |
140 | goto got_map; | |
141 | } | |
8035e428 | 142 | } |
439d473b ACM |
143 | dump_printf(" ...... dso: %s\n", |
144 | map ? map->dso->long_name : "<not found>"); | |
8035e428 | 145 | } else { |
8035e428 | 146 | level = 'H'; |
2cec19d9 | 147 | dump_printf(" ...... dso: [hypervisor]\n"); |
8035e428 IM |
148 | } |
149 | ||
ec218fc4 ACM |
150 | if (hist_entry__add(thread, map, sym, ip, 1, level)) { |
151 | fprintf(stderr, "problem incrementing symbol count, " | |
152 | "skipping event\n"); | |
153 | return -1; | |
8035e428 IM |
154 | } |
155 | total++; | |
156 | ||
157 | return 0; | |
158 | } | |
159 | ||
160 | static int | |
161 | process_mmap_event(event_t *event, unsigned long offset, unsigned long head) | |
162 | { | |
66e274f3 | 163 | struct map *map = map__new(&event->mmap, NULL, 0); |
d5b889f2 | 164 | struct thread *thread = threads__findnew(event->mmap.pid); |
6baa0a5a | 165 | |
cdd6c482 | 166 | dump_printf("%p [%p]: PERF_RECORD_MMAP %d: [%p(%p) @ %p]: %s\n", |
8035e428 IM |
167 | (void *)(offset + head), |
168 | (void *)(long)(event->header.size), | |
169 | event->mmap.pid, | |
170 | (void *)(long)event->mmap.start, | |
171 | (void *)(long)event->mmap.len, | |
172 | (void *)(long)event->mmap.pgoff, | |
173 | event->mmap.filename); | |
174 | ||
175 | if (thread == NULL || map == NULL) { | |
cdd6c482 | 176 | dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n"); |
8035e428 IM |
177 | return 0; |
178 | } | |
179 | ||
180 | thread__insert_map(thread, map); | |
181 | total_mmap++; | |
182 | ||
183 | return 0; | |
184 | } | |
185 | ||
186 | static int | |
187 | process_comm_event(event_t *event, unsigned long offset, unsigned long head) | |
188 | { | |
d5b889f2 | 189 | struct thread *thread = threads__findnew(event->comm.pid); |
8035e428 | 190 | |
cdd6c482 | 191 | dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n", |
8035e428 IM |
192 | (void *)(offset + head), |
193 | (void *)(long)(event->header.size), | |
194 | event->comm.comm, event->comm.pid); | |
195 | ||
196 | if (thread == NULL || | |
197 | thread__set_comm(thread, event->comm.comm)) { | |
cdd6c482 | 198 | dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); |
8035e428 IM |
199 | return -1; |
200 | } | |
201 | total_comm++; | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | static int | |
207 | process_fork_event(event_t *event, unsigned long offset, unsigned long head) | |
208 | { | |
d5b889f2 ACM |
209 | struct thread *thread = threads__findnew(event->fork.pid); |
210 | struct thread *parent = threads__findnew(event->fork.ppid); | |
8035e428 | 211 | |
cdd6c482 | 212 | dump_printf("%p [%p]: PERF_RECORD_FORK: %d:%d\n", |
8035e428 IM |
213 | (void *)(offset + head), |
214 | (void *)(long)(event->header.size), | |
215 | event->fork.pid, event->fork.ppid); | |
216 | ||
15f3fa4e IM |
217 | /* |
218 | * A thread clone will have the same PID for both | |
219 | * parent and child. | |
220 | */ | |
221 | if (thread == parent) | |
222 | return 0; | |
223 | ||
8035e428 | 224 | if (!thread || !parent || thread__fork(thread, parent)) { |
cdd6c482 | 225 | dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n"); |
8035e428 IM |
226 | return -1; |
227 | } | |
228 | total_fork++; | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
8035e428 IM |
233 | static int |
234 | process_event(event_t *event, unsigned long offset, unsigned long head) | |
235 | { | |
8035e428 | 236 | switch (event->header.type) { |
cdd6c482 | 237 | case PERF_RECORD_SAMPLE: |
e6e18ec7 PZ |
238 | return process_sample_event(event, offset, head); |
239 | ||
cdd6c482 | 240 | case PERF_RECORD_MMAP: |
8035e428 IM |
241 | return process_mmap_event(event, offset, head); |
242 | ||
cdd6c482 | 243 | case PERF_RECORD_COMM: |
8035e428 IM |
244 | return process_comm_event(event, offset, head); |
245 | ||
cdd6c482 | 246 | case PERF_RECORD_FORK: |
8035e428 | 247 | return process_fork_event(event, offset, head); |
8035e428 IM |
248 | /* |
249 | * We dont process them right now but they are fine: | |
250 | */ | |
251 | ||
cdd6c482 IM |
252 | case PERF_RECORD_THROTTLE: |
253 | case PERF_RECORD_UNTHROTTLE: | |
8035e428 IM |
254 | return 0; |
255 | ||
256 | default: | |
257 | return -1; | |
258 | } | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
0b73da3f | 263 | static int |
439d473b | 264 | parse_line(FILE *file, struct symbol *sym, u64 len) |
0b73da3f IM |
265 | { |
266 | char *line = NULL, *tmp, *tmp2; | |
301406b9 FW |
267 | static const char *prev_line; |
268 | static const char *prev_color; | |
0b73da3f IM |
269 | unsigned int offset; |
270 | size_t line_len; | |
f37a291c | 271 | s64 line_ip; |
0b73da3f IM |
272 | int ret; |
273 | char *c; | |
274 | ||
275 | if (getline(&line, &line_len, file) < 0) | |
276 | return -1; | |
277 | if (!line) | |
278 | return -1; | |
279 | ||
280 | c = strchr(line, '\n'); | |
281 | if (c) | |
282 | *c = 0; | |
283 | ||
284 | line_ip = -1; | |
285 | offset = 0; | |
286 | ret = -2; | |
287 | ||
288 | /* | |
289 | * Strip leading spaces: | |
290 | */ | |
291 | tmp = line; | |
292 | while (*tmp) { | |
293 | if (*tmp != ' ') | |
294 | break; | |
295 | tmp++; | |
296 | } | |
297 | ||
298 | if (*tmp) { | |
299 | /* | |
300 | * Parse hexa addresses followed by ':' | |
301 | */ | |
302 | line_ip = strtoull(tmp, &tmp2, 16); | |
303 | if (*tmp2 != ':') | |
304 | line_ip = -1; | |
305 | } | |
306 | ||
307 | if (line_ip != -1) { | |
301406b9 | 308 | const char *path = NULL; |
0b73da3f IM |
309 | unsigned int hits = 0; |
310 | double percent = 0.0; | |
83a0944f | 311 | const char *color; |
301406b9 | 312 | struct sym_ext *sym_ext = sym->priv; |
0b73da3f | 313 | |
439d473b | 314 | offset = line_ip - sym->start; |
0b73da3f IM |
315 | if (offset < len) |
316 | hits = sym->hist[offset]; | |
317 | ||
c17c2db1 | 318 | if (offset < len && sym_ext) { |
301406b9 FW |
319 | path = sym_ext[offset].path; |
320 | percent = sym_ext[offset].percent; | |
321 | } else if (sym->hist_sum) | |
0b73da3f IM |
322 | percent = 100.0 * hits / sym->hist_sum; |
323 | ||
1e11fd82 | 324 | color = get_percent_color(percent); |
0b73da3f | 325 | |
301406b9 FW |
326 | /* |
327 | * Also color the filename and line if needed, with | |
328 | * the same color than the percentage. Don't print it | |
329 | * twice for close colored ip with the same filename:line | |
330 | */ | |
331 | if (path) { | |
332 | if (!prev_line || strcmp(prev_line, path) | |
333 | || color != prev_color) { | |
334 | color_fprintf(stdout, color, " %s", path); | |
335 | prev_line = path; | |
336 | prev_color = color; | |
337 | } | |
338 | } | |
339 | ||
0b73da3f IM |
340 | color_fprintf(stdout, color, " %7.2f", percent); |
341 | printf(" : "); | |
342 | color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", line); | |
343 | } else { | |
344 | if (!*line) | |
345 | printf(" :\n"); | |
346 | else | |
347 | printf(" : %s\n", line); | |
348 | } | |
349 | ||
350 | return 0; | |
351 | } | |
352 | ||
971738f3 FW |
353 | static struct rb_root root_sym_ext; |
354 | ||
355 | static void insert_source_line(struct sym_ext *sym_ext) | |
356 | { | |
357 | struct sym_ext *iter; | |
358 | struct rb_node **p = &root_sym_ext.rb_node; | |
359 | struct rb_node *parent = NULL; | |
360 | ||
361 | while (*p != NULL) { | |
362 | parent = *p; | |
363 | iter = rb_entry(parent, struct sym_ext, node); | |
364 | ||
365 | if (sym_ext->percent > iter->percent) | |
366 | p = &(*p)->rb_left; | |
367 | else | |
368 | p = &(*p)->rb_right; | |
369 | } | |
370 | ||
371 | rb_link_node(&sym_ext->node, parent, p); | |
372 | rb_insert_color(&sym_ext->node, &root_sym_ext); | |
373 | } | |
374 | ||
301406b9 FW |
375 | static void free_source_line(struct symbol *sym, int len) |
376 | { | |
377 | struct sym_ext *sym_ext = sym->priv; | |
378 | int i; | |
379 | ||
380 | if (!sym_ext) | |
381 | return; | |
382 | ||
383 | for (i = 0; i < len; i++) | |
384 | free(sym_ext[i].path); | |
385 | free(sym_ext); | |
386 | ||
387 | sym->priv = NULL; | |
971738f3 | 388 | root_sym_ext = RB_ROOT; |
301406b9 FW |
389 | } |
390 | ||
391 | /* Get the filename:line for the colored entries */ | |
c17c2db1 | 392 | static void |
439d473b | 393 | get_source_line(struct symbol *sym, int len, const char *filename) |
301406b9 FW |
394 | { |
395 | int i; | |
396 | char cmd[PATH_MAX * 2]; | |
397 | struct sym_ext *sym_ext; | |
398 | ||
399 | if (!sym->hist_sum) | |
400 | return; | |
401 | ||
402 | sym->priv = calloc(len, sizeof(struct sym_ext)); | |
403 | if (!sym->priv) | |
404 | return; | |
405 | ||
406 | sym_ext = sym->priv; | |
407 | ||
408 | for (i = 0; i < len; i++) { | |
409 | char *path = NULL; | |
410 | size_t line_len; | |
9cffa8d5 | 411 | u64 offset; |
301406b9 FW |
412 | FILE *fp; |
413 | ||
414 | sym_ext[i].percent = 100.0 * sym->hist[i] / sym->hist_sum; | |
415 | if (sym_ext[i].percent <= 0.5) | |
416 | continue; | |
417 | ||
439d473b | 418 | offset = sym->start + i; |
c17c2db1 | 419 | sprintf(cmd, "addr2line -e %s %016llx", filename, offset); |
301406b9 FW |
420 | fp = popen(cmd, "r"); |
421 | if (!fp) | |
422 | continue; | |
423 | ||
424 | if (getline(&path, &line_len, fp) < 0 || !line_len) | |
425 | goto next; | |
426 | ||
c17c2db1 | 427 | sym_ext[i].path = malloc(sizeof(char) * line_len + 1); |
301406b9 FW |
428 | if (!sym_ext[i].path) |
429 | goto next; | |
430 | ||
431 | strcpy(sym_ext[i].path, path); | |
971738f3 | 432 | insert_source_line(&sym_ext[i]); |
301406b9 FW |
433 | |
434 | next: | |
435 | pclose(fp); | |
436 | } | |
437 | } | |
438 | ||
83a0944f | 439 | static void print_summary(const char *filename) |
971738f3 FW |
440 | { |
441 | struct sym_ext *sym_ext; | |
442 | struct rb_node *node; | |
443 | ||
444 | printf("\nSorted summary for file %s\n", filename); | |
445 | printf("----------------------------------------------\n\n"); | |
446 | ||
447 | if (RB_EMPTY_ROOT(&root_sym_ext)) { | |
448 | printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); | |
449 | return; | |
450 | } | |
451 | ||
452 | node = rb_first(&root_sym_ext); | |
453 | while (node) { | |
454 | double percent; | |
83a0944f | 455 | const char *color; |
971738f3 FW |
456 | char *path; |
457 | ||
458 | sym_ext = rb_entry(node, struct sym_ext, node); | |
459 | percent = sym_ext->percent; | |
1e11fd82 | 460 | color = get_percent_color(percent); |
971738f3 FW |
461 | path = sym_ext->path; |
462 | ||
463 | color_fprintf(stdout, color, " %7.2f %s", percent, path); | |
464 | node = rb_next(node); | |
465 | } | |
466 | } | |
467 | ||
0b73da3f IM |
468 | static void annotate_sym(struct dso *dso, struct symbol *sym) |
469 | { | |
439d473b ACM |
470 | const char *filename = dso->long_name, *d_filename; |
471 | u64 len; | |
0b73da3f IM |
472 | char command[PATH_MAX*2]; |
473 | FILE *file; | |
474 | ||
475 | if (!filename) | |
476 | return; | |
439d473b | 477 | |
42976487 MG |
478 | if (full_paths) |
479 | d_filename = filename; | |
480 | else | |
481 | d_filename = basename(filename); | |
0b73da3f | 482 | |
0b73da3f IM |
483 | len = sym->end - sym->start; |
484 | ||
971738f3 | 485 | if (print_line) { |
439d473b | 486 | get_source_line(sym, len, filename); |
971738f3 FW |
487 | print_summary(filename); |
488 | } | |
489 | ||
490 | printf("\n\n------------------------------------------------\n"); | |
42976487 | 491 | printf(" Percent | Source code & Disassembly of %s\n", d_filename); |
971738f3 FW |
492 | printf("------------------------------------------------\n"); |
493 | ||
494 | if (verbose >= 2) | |
439d473b ACM |
495 | printf("annotating [%p] %30s : [%p] %30s\n", |
496 | dso, dso->long_name, sym, sym->name); | |
301406b9 | 497 | |
42976487 | 498 | sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s|grep -v %s", |
439d473b | 499 | sym->start, sym->end, filename, filename); |
0b73da3f IM |
500 | |
501 | if (verbose >= 3) | |
502 | printf("doing: %s\n", command); | |
503 | ||
504 | file = popen(command, "r"); | |
505 | if (!file) | |
506 | return; | |
507 | ||
508 | while (!feof(file)) { | |
439d473b | 509 | if (parse_line(file, sym, len) < 0) |
0b73da3f IM |
510 | break; |
511 | } | |
512 | ||
513 | pclose(file); | |
971738f3 FW |
514 | if (print_line) |
515 | free_source_line(sym, len); | |
0b73da3f IM |
516 | } |
517 | ||
518 | static void find_annotations(void) | |
519 | { | |
520 | struct rb_node *nd; | |
521 | struct dso *dso; | |
522 | int count = 0; | |
523 | ||
524 | list_for_each_entry(dso, &dsos, node) { | |
525 | ||
526 | for (nd = rb_first(&dso->syms); nd; nd = rb_next(nd)) { | |
527 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); | |
528 | ||
529 | if (sym->hist) { | |
530 | annotate_sym(dso, sym); | |
531 | count++; | |
532 | } | |
533 | } | |
534 | } | |
535 | ||
536 | if (!count) | |
537 | printf(" Error: symbol '%s' not present amongst the samples.\n", sym_hist_filter); | |
538 | } | |
539 | ||
8035e428 IM |
540 | static int __cmd_annotate(void) |
541 | { | |
542 | int ret, rc = EXIT_FAILURE; | |
543 | unsigned long offset = 0; | |
544 | unsigned long head = 0; | |
83a0944f | 545 | struct stat input_stat; |
8035e428 IM |
546 | event_t *event; |
547 | uint32_t size; | |
548 | char *buf; | |
549 | ||
d5b889f2 | 550 | register_idle_thread(); |
8035e428 IM |
551 | |
552 | input = open(input_name, O_RDONLY); | |
553 | if (input < 0) { | |
554 | perror("failed to open file"); | |
555 | exit(-1); | |
556 | } | |
557 | ||
83a0944f | 558 | ret = fstat(input, &input_stat); |
8035e428 IM |
559 | if (ret < 0) { |
560 | perror("failed to stat file"); | |
561 | exit(-1); | |
562 | } | |
563 | ||
119e7a22 PH |
564 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { |
565 | fprintf(stderr, "file: %s not owned by current user or root\n", input_name); | |
fa6963b2 PZ |
566 | exit(-1); |
567 | } | |
568 | ||
83a0944f | 569 | if (!input_stat.st_size) { |
8035e428 IM |
570 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
571 | exit(0); | |
572 | } | |
573 | ||
574 | if (load_kernel() < 0) { | |
575 | perror("failed to load kernel symbols"); | |
576 | return EXIT_FAILURE; | |
577 | } | |
578 | ||
8035e428 IM |
579 | remap: |
580 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, | |
581 | MAP_SHARED, input, offset); | |
582 | if (buf == MAP_FAILED) { | |
583 | perror("failed to mmap file"); | |
584 | exit(-1); | |
585 | } | |
586 | ||
587 | more: | |
588 | event = (event_t *)(buf + head); | |
589 | ||
590 | size = event->header.size; | |
591 | if (!size) | |
592 | size = 8; | |
593 | ||
594 | if (head + event->header.size >= page_size * mmap_window) { | |
595 | unsigned long shift = page_size * (head / page_size); | |
83a0944f | 596 | int munmap_ret; |
8035e428 | 597 | |
83a0944f IM |
598 | munmap_ret = munmap(buf, page_size * mmap_window); |
599 | assert(munmap_ret == 0); | |
8035e428 IM |
600 | |
601 | offset += shift; | |
602 | head -= shift; | |
603 | goto remap; | |
604 | } | |
605 | ||
606 | size = event->header.size; | |
607 | ||
2cec19d9 | 608 | dump_printf("%p [%p]: event: %d\n", |
8035e428 IM |
609 | (void *)(offset + head), |
610 | (void *)(long)event->header.size, | |
611 | event->header.type); | |
612 | ||
613 | if (!size || process_event(event, offset, head) < 0) { | |
614 | ||
2cec19d9 | 615 | dump_printf("%p [%p]: skipping unknown header type: %d\n", |
8035e428 IM |
616 | (void *)(offset + head), |
617 | (void *)(long)(event->header.size), | |
618 | event->header.type); | |
619 | ||
620 | total_unknown++; | |
621 | ||
622 | /* | |
623 | * assume we lost track of the stream, check alignment, and | |
624 | * increment a single u64 in the hope to catch on again 'soon'. | |
625 | */ | |
626 | ||
627 | if (unlikely(head & 7)) | |
628 | head &= ~7ULL; | |
629 | ||
630 | size = 8; | |
631 | } | |
632 | ||
633 | head += size; | |
634 | ||
83a0944f | 635 | if (offset + head < (unsigned long)input_stat.st_size) |
8035e428 IM |
636 | goto more; |
637 | ||
638 | rc = EXIT_SUCCESS; | |
639 | close(input); | |
640 | ||
2cec19d9 FW |
641 | dump_printf(" IP events: %10ld\n", total); |
642 | dump_printf(" mmap events: %10ld\n", total_mmap); | |
643 | dump_printf(" comm events: %10ld\n", total_comm); | |
644 | dump_printf(" fork events: %10ld\n", total_fork); | |
645 | dump_printf(" unknown events: %10ld\n", total_unknown); | |
8035e428 IM |
646 | |
647 | if (dump_trace) | |
648 | return 0; | |
649 | ||
da21d1b5 | 650 | if (verbose > 3) |
d5b889f2 | 651 | threads__fprintf(stdout); |
8035e428 | 652 | |
da21d1b5 | 653 | if (verbose > 2) |
8035e428 IM |
654 | dsos__fprintf(stdout); |
655 | ||
656 | collapse__resort(); | |
3d1d07ec | 657 | output__resort(total); |
0b73da3f IM |
658 | |
659 | find_annotations(); | |
8035e428 IM |
660 | |
661 | return rc; | |
662 | } | |
663 | ||
664 | static const char * const annotate_usage[] = { | |
665 | "perf annotate [<options>] <command>", | |
666 | NULL | |
667 | }; | |
668 | ||
669 | static const struct option options[] = { | |
670 | OPT_STRING('i', "input", &input_name, "file", | |
671 | "input file name"), | |
23b87116 | 672 | OPT_STRING('s', "symbol", &sym_hist_filter, "symbol", |
0b73da3f | 673 | "symbol to annotate"), |
fa6963b2 | 674 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), |
8035e428 IM |
675 | OPT_BOOLEAN('v', "verbose", &verbose, |
676 | "be more verbose (show symbol address, etc)"), | |
677 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | |
678 | "dump raw trace in ASCII"), | |
83a0944f | 679 | OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"), |
42976487 MG |
680 | OPT_BOOLEAN('m', "modules", &modules, |
681 | "load module symbols - WARNING: use only with -k and LIVE kernel"), | |
301406b9 FW |
682 | OPT_BOOLEAN('l', "print-line", &print_line, |
683 | "print matching source lines (may be slow)"), | |
42976487 MG |
684 | OPT_BOOLEAN('P', "full-paths", &full_paths, |
685 | "Don't shorten the displayed pathnames"), | |
8035e428 IM |
686 | OPT_END() |
687 | }; | |
688 | ||
689 | static void setup_sorting(void) | |
690 | { | |
691 | char *tmp, *tok, *str = strdup(sort_order); | |
692 | ||
693 | for (tok = strtok_r(str, ", ", &tmp); | |
694 | tok; tok = strtok_r(NULL, ", ", &tmp)) { | |
695 | if (sort_dimension__add(tok) < 0) { | |
696 | error("Unknown --sort key: `%s'", tok); | |
697 | usage_with_options(annotate_usage, options); | |
698 | } | |
699 | } | |
700 | ||
701 | free(str); | |
702 | } | |
703 | ||
f37a291c | 704 | int cmd_annotate(int argc, const char **argv, const char *prefix __used) |
8035e428 IM |
705 | { |
706 | symbol__init(); | |
707 | ||
708 | page_size = getpagesize(); | |
709 | ||
710 | argc = parse_options(argc, argv, options, annotate_usage, 0); | |
711 | ||
712 | setup_sorting(); | |
713 | ||
0b73da3f IM |
714 | if (argc) { |
715 | /* | |
716 | * Special case: if there's an argument left then assume tha | |
717 | * it's a symbol filter: | |
718 | */ | |
719 | if (argc > 1) | |
720 | usage_with_options(annotate_usage, options); | |
721 | ||
722 | sym_hist_filter = argv[0]; | |
723 | } | |
724 | ||
725 | if (!sym_hist_filter) | |
8035e428 IM |
726 | usage_with_options(annotate_usage, options); |
727 | ||
728 | setup_pager(); | |
729 | ||
dd68ada2 JK |
730 | if (field_sep && *field_sep == '.') { |
731 | fputs("'.' is the only non valid --field-separator argument\n", | |
732 | stderr); | |
733 | exit(129); | |
734 | } | |
735 | ||
8035e428 IM |
736 | return __cmd_annotate(); |
737 | } |