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Commit | Line | Data |
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bf9e1876 IM |
1 | /* |
2 | * builtin-report.c | |
3 | * | |
4 | * Builtin report 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 | */ | |
16f762a2 | 8 | #include "builtin.h" |
53cb8bc2 | 9 | |
bf9e1876 IM |
10 | #include "util/util.h" |
11 | ||
35a50c8a | 12 | #include "util/list.h" |
a930d2c0 | 13 | #include "util/cache.h" |
35a50c8a | 14 | #include "util/rbtree.h" |
a2928c42 | 15 | #include "util/symbol.h" |
a0055ae2 | 16 | #include "util/string.h" |
8fa66bdc | 17 | |
53cb8bc2 IM |
18 | #include "perf.h" |
19 | ||
20 | #include "util/parse-options.h" | |
21 | #include "util/parse-events.h" | |
22 | ||
8fa66bdc ACM |
23 | #define SHOW_KERNEL 1 |
24 | #define SHOW_USER 2 | |
25 | #define SHOW_HV 4 | |
26 | ||
23ac9cbe | 27 | static char const *input_name = "perf.data"; |
450aaa2b | 28 | static char *vmlinux = NULL; |
f70e87d7 | 29 | static char *sort_order = "comm,dso"; |
8fa66bdc ACM |
30 | static int input; |
31 | static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; | |
32 | ||
97b07b69 | 33 | static int dump_trace = 0; |
3502973d IM |
34 | #define dprintf(x...) do { if (dump_trace) printf(x); } while (0) |
35 | ||
16f762a2 | 36 | static int verbose; |
b78c07d4 | 37 | static int full_paths; |
97b07b69 | 38 | |
8fa66bdc ACM |
39 | static unsigned long page_size; |
40 | static unsigned long mmap_window = 32; | |
41 | ||
53cb8bc2 | 42 | const char *perf_event_names[] = { |
8fa66bdc ACM |
43 | [PERF_EVENT_MMAP] = " PERF_EVENT_MMAP", |
44 | [PERF_EVENT_MUNMAP] = " PERF_EVENT_MUNMAP", | |
45 | [PERF_EVENT_COMM] = " PERF_EVENT_COMM", | |
46 | }; | |
47 | ||
48 | struct ip_event { | |
49 | struct perf_event_header header; | |
50 | __u64 ip; | |
51 | __u32 pid, tid; | |
52 | }; | |
53 | struct mmap_event { | |
54 | struct perf_event_header header; | |
55 | __u32 pid, tid; | |
56 | __u64 start; | |
57 | __u64 len; | |
58 | __u64 pgoff; | |
59 | char filename[PATH_MAX]; | |
60 | }; | |
61 | struct comm_event { | |
62 | struct perf_event_header header; | |
63 | __u32 pid,tid; | |
64 | char comm[16]; | |
65 | }; | |
66 | ||
67 | typedef union event_union { | |
68 | struct perf_event_header header; | |
69 | struct ip_event ip; | |
70 | struct mmap_event mmap; | |
71 | struct comm_event comm; | |
72 | } event_t; | |
73 | ||
8fa66bdc ACM |
74 | static LIST_HEAD(dsos); |
75 | static struct dso *kernel_dso; | |
76 | ||
77 | static void dsos__add(struct dso *dso) | |
78 | { | |
79 | list_add_tail(&dso->node, &dsos); | |
80 | } | |
81 | ||
82 | static struct dso *dsos__find(const char *name) | |
83 | { | |
84 | struct dso *pos; | |
85 | ||
86 | list_for_each_entry(pos, &dsos, node) | |
87 | if (strcmp(pos->name, name) == 0) | |
88 | return pos; | |
89 | return NULL; | |
90 | } | |
91 | ||
92 | static struct dso *dsos__findnew(const char *name) | |
93 | { | |
94 | struct dso *dso = dsos__find(name); | |
b7a16eac | 95 | int nr; |
8fa66bdc | 96 | |
4593bba8 IM |
97 | if (dso) |
98 | return dso; | |
99 | ||
100 | dso = dso__new(name, 0); | |
101 | if (!dso) | |
102 | goto out_delete_dso; | |
8fa66bdc | 103 | |
4593bba8 IM |
104 | nr = dso__load(dso, NULL); |
105 | if (nr < 0) { | |
106 | fprintf(stderr, "Failed to open: %s\n", name); | |
107 | goto out_delete_dso; | |
8fa66bdc | 108 | } |
4593bba8 IM |
109 | if (!nr && verbose) { |
110 | fprintf(stderr, | |
111 | "No symbols found in: %s, maybe install a debug package?\n", | |
112 | name); | |
113 | } | |
114 | ||
115 | dsos__add(dso); | |
8fa66bdc ACM |
116 | |
117 | return dso; | |
118 | ||
119 | out_delete_dso: | |
120 | dso__delete(dso); | |
121 | return NULL; | |
122 | } | |
123 | ||
16f762a2 | 124 | static void dsos__fprintf(FILE *fp) |
8fa66bdc ACM |
125 | { |
126 | struct dso *pos; | |
127 | ||
128 | list_for_each_entry(pos, &dsos, node) | |
129 | dso__fprintf(pos, fp); | |
130 | } | |
131 | ||
450aaa2b PZ |
132 | static int load_kernel(void) |
133 | { | |
a827c875 | 134 | int err; |
450aaa2b | 135 | |
0085c954 | 136 | kernel_dso = dso__new("[kernel]", 0); |
450aaa2b | 137 | if (!kernel_dso) |
a2928c42 | 138 | return -1; |
450aaa2b | 139 | |
69ee69f6 | 140 | err = dso__load_kernel(kernel_dso, vmlinux, NULL); |
a2928c42 ACM |
141 | if (err) { |
142 | dso__delete(kernel_dso); | |
143 | kernel_dso = NULL; | |
144 | } else | |
145 | dsos__add(kernel_dso); | |
450aaa2b | 146 | |
a2928c42 | 147 | return err; |
450aaa2b PZ |
148 | } |
149 | ||
b78c07d4 ACM |
150 | static int strcommon(const char *pathname, const char *cwd, int cwdlen) |
151 | { | |
152 | int n = 0; | |
153 | ||
154 | while (pathname[n] == cwd[n] && n < cwdlen) | |
155 | ++n; | |
156 | ||
157 | return n; | |
158 | } | |
159 | ||
8fa66bdc ACM |
160 | struct map { |
161 | struct list_head node; | |
162 | uint64_t start; | |
163 | uint64_t end; | |
164 | uint64_t pgoff; | |
165 | struct dso *dso; | |
166 | }; | |
167 | ||
b78c07d4 | 168 | static struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen) |
8fa66bdc ACM |
169 | { |
170 | struct map *self = malloc(sizeof(*self)); | |
171 | ||
172 | if (self != NULL) { | |
b78c07d4 ACM |
173 | const char *filename = event->filename; |
174 | char newfilename[PATH_MAX]; | |
175 | ||
176 | if (cwd) { | |
177 | int n = strcommon(filename, cwd, cwdlen); | |
178 | if (n == cwdlen) { | |
179 | snprintf(newfilename, sizeof(newfilename), | |
180 | ".%s", filename + n); | |
181 | filename = newfilename; | |
182 | } | |
183 | } | |
184 | ||
8fa66bdc ACM |
185 | self->start = event->start; |
186 | self->end = event->start + event->len; | |
187 | self->pgoff = event->pgoff; | |
188 | ||
b78c07d4 | 189 | self->dso = dsos__findnew(filename); |
8fa66bdc ACM |
190 | if (self->dso == NULL) |
191 | goto out_delete; | |
192 | } | |
193 | return self; | |
194 | out_delete: | |
195 | free(self); | |
196 | return NULL; | |
197 | } | |
198 | ||
3a4b8cc7 ACM |
199 | struct thread; |
200 | ||
8fa66bdc | 201 | struct thread { |
ce7e4365 | 202 | struct rb_node rb_node; |
8fa66bdc | 203 | struct list_head maps; |
8fa66bdc ACM |
204 | pid_t pid; |
205 | char *comm; | |
206 | }; | |
207 | ||
208 | static struct thread *thread__new(pid_t pid) | |
209 | { | |
210 | struct thread *self = malloc(sizeof(*self)); | |
211 | ||
212 | if (self != NULL) { | |
213 | self->pid = pid; | |
8229289b | 214 | self->comm = malloc(32); |
0a520c63 | 215 | if (self->comm) |
8229289b | 216 | snprintf(self->comm, 32, ":%d", self->pid); |
8fa66bdc | 217 | INIT_LIST_HEAD(&self->maps); |
8fa66bdc ACM |
218 | } |
219 | ||
220 | return self; | |
221 | } | |
222 | ||
8fa66bdc ACM |
223 | static int thread__set_comm(struct thread *self, const char *comm) |
224 | { | |
8229289b PZ |
225 | if (self->comm) |
226 | free(self->comm); | |
8fa66bdc ACM |
227 | self->comm = strdup(comm); |
228 | return self->comm ? 0 : -ENOMEM; | |
229 | } | |
230 | ||
16f762a2 | 231 | static struct rb_root threads; |
eed4dcd4 | 232 | static struct thread *last_match; |
8fa66bdc | 233 | |
ce7e4365 | 234 | static struct thread *threads__findnew(pid_t pid) |
8fa66bdc | 235 | { |
ce7e4365 ACM |
236 | struct rb_node **p = &threads.rb_node; |
237 | struct rb_node *parent = NULL; | |
238 | struct thread *th; | |
8fa66bdc | 239 | |
eed4dcd4 IM |
240 | /* |
241 | * Font-end cache - PID lookups come in blocks, | |
242 | * so most of the time we dont have to look up | |
243 | * the full rbtree: | |
244 | */ | |
245 | if (last_match && last_match->pid == pid) | |
246 | return last_match; | |
247 | ||
ce7e4365 ACM |
248 | while (*p != NULL) { |
249 | parent = *p; | |
250 | th = rb_entry(parent, struct thread, rb_node); | |
8fa66bdc | 251 | |
eed4dcd4 IM |
252 | if (th->pid == pid) { |
253 | last_match = th; | |
ce7e4365 | 254 | return th; |
eed4dcd4 | 255 | } |
8fa66bdc | 256 | |
ce7e4365 ACM |
257 | if (pid < th->pid) |
258 | p = &(*p)->rb_left; | |
259 | else | |
260 | p = &(*p)->rb_right; | |
8fa66bdc ACM |
261 | } |
262 | ||
ce7e4365 ACM |
263 | th = thread__new(pid); |
264 | if (th != NULL) { | |
265 | rb_link_node(&th->rb_node, parent, p); | |
266 | rb_insert_color(&th->rb_node, &threads); | |
eed4dcd4 | 267 | last_match = th; |
ce7e4365 | 268 | } |
eed4dcd4 | 269 | |
ce7e4365 | 270 | return th; |
8fa66bdc ACM |
271 | } |
272 | ||
273 | static void thread__insert_map(struct thread *self, struct map *map) | |
274 | { | |
275 | list_add_tail(&map->node, &self->maps); | |
276 | } | |
277 | ||
278 | static struct map *thread__find_map(struct thread *self, uint64_t ip) | |
279 | { | |
16f762a2 IM |
280 | struct map *pos; |
281 | ||
8fa66bdc ACM |
282 | if (self == NULL) |
283 | return NULL; | |
284 | ||
8fa66bdc ACM |
285 | list_for_each_entry(pos, &self->maps, node) |
286 | if (ip >= pos->start && ip <= pos->end) | |
287 | return pos; | |
288 | ||
289 | return NULL; | |
290 | } | |
291 | ||
e7fb08b1 PZ |
292 | /* |
293 | * histogram, sorted on item, collects counts | |
294 | */ | |
295 | ||
296 | static struct rb_root hist; | |
297 | ||
298 | struct hist_entry { | |
299 | struct rb_node rb_node; | |
300 | ||
301 | struct thread *thread; | |
302 | struct map *map; | |
303 | struct dso *dso; | |
304 | struct symbol *sym; | |
305 | uint64_t ip; | |
306 | char level; | |
307 | ||
308 | uint32_t count; | |
309 | }; | |
310 | ||
1aa16738 PZ |
311 | /* |
312 | * configurable sorting bits | |
313 | */ | |
314 | ||
315 | struct sort_entry { | |
316 | struct list_head list; | |
317 | ||
ca8cdeef PZ |
318 | char *header; |
319 | ||
1aa16738 | 320 | int64_t (*cmp)(struct hist_entry *, struct hist_entry *); |
8229289b | 321 | int64_t (*collapse)(struct hist_entry *, struct hist_entry *); |
1aa16738 PZ |
322 | size_t (*print)(FILE *fp, struct hist_entry *); |
323 | }; | |
324 | ||
8229289b PZ |
325 | /* --sort pid */ |
326 | ||
e7fb08b1 | 327 | static int64_t |
1aa16738 | 328 | sort__thread_cmp(struct hist_entry *left, struct hist_entry *right) |
e7fb08b1 | 329 | { |
1aa16738 PZ |
330 | return right->thread->pid - left->thread->pid; |
331 | } | |
332 | ||
333 | static size_t | |
334 | sort__thread_print(FILE *fp, struct hist_entry *self) | |
335 | { | |
cf25c63c | 336 | return fprintf(fp, " %16s:%5d", self->thread->comm ?: "", self->thread->pid); |
1aa16738 | 337 | } |
e7fb08b1 | 338 | |
1aa16738 | 339 | static struct sort_entry sort_thread = { |
cf25c63c | 340 | .header = " Command: Pid ", |
1aa16738 PZ |
341 | .cmp = sort__thread_cmp, |
342 | .print = sort__thread_print, | |
343 | }; | |
344 | ||
8229289b PZ |
345 | /* --sort comm */ |
346 | ||
992444b1 PZ |
347 | static int64_t |
348 | sort__comm_cmp(struct hist_entry *left, struct hist_entry *right) | |
8229289b PZ |
349 | { |
350 | return right->thread->pid - left->thread->pid; | |
351 | } | |
352 | ||
353 | static int64_t | |
354 | sort__comm_collapse(struct hist_entry *left, struct hist_entry *right) | |
992444b1 PZ |
355 | { |
356 | char *comm_l = left->thread->comm; | |
357 | char *comm_r = right->thread->comm; | |
358 | ||
359 | if (!comm_l || !comm_r) { | |
360 | if (!comm_l && !comm_r) | |
361 | return 0; | |
362 | else if (!comm_l) | |
363 | return -1; | |
364 | else | |
365 | return 1; | |
366 | } | |
367 | ||
368 | return strcmp(comm_l, comm_r); | |
369 | } | |
370 | ||
371 | static size_t | |
372 | sort__comm_print(FILE *fp, struct hist_entry *self) | |
373 | { | |
0a520c63 | 374 | return fprintf(fp, " %16s", self->thread->comm); |
992444b1 PZ |
375 | } |
376 | ||
377 | static struct sort_entry sort_comm = { | |
8229289b PZ |
378 | .header = " Command", |
379 | .cmp = sort__comm_cmp, | |
380 | .collapse = sort__comm_collapse, | |
381 | .print = sort__comm_print, | |
992444b1 PZ |
382 | }; |
383 | ||
8229289b PZ |
384 | /* --sort dso */ |
385 | ||
55e5ec41 PZ |
386 | static int64_t |
387 | sort__dso_cmp(struct hist_entry *left, struct hist_entry *right) | |
388 | { | |
389 | struct dso *dso_l = left->dso; | |
390 | struct dso *dso_r = right->dso; | |
391 | ||
392 | if (!dso_l || !dso_r) { | |
393 | if (!dso_l && !dso_r) | |
394 | return 0; | |
395 | else if (!dso_l) | |
396 | return -1; | |
397 | else | |
398 | return 1; | |
399 | } | |
400 | ||
401 | return strcmp(dso_l->name, dso_r->name); | |
402 | } | |
403 | ||
404 | static size_t | |
405 | sort__dso_print(FILE *fp, struct hist_entry *self) | |
406 | { | |
0a520c63 IM |
407 | if (self->dso) |
408 | return fprintf(fp, " %-25s", self->dso->name); | |
409 | ||
410 | return fprintf(fp, " %016llx", (__u64)self->ip); | |
55e5ec41 PZ |
411 | } |
412 | ||
413 | static struct sort_entry sort_dso = { | |
cf25c63c | 414 | .header = " Shared Object ", |
55e5ec41 PZ |
415 | .cmp = sort__dso_cmp, |
416 | .print = sort__dso_print, | |
417 | }; | |
418 | ||
8229289b PZ |
419 | /* --sort symbol */ |
420 | ||
1aa16738 PZ |
421 | static int64_t |
422 | sort__sym_cmp(struct hist_entry *left, struct hist_entry *right) | |
423 | { | |
424 | uint64_t ip_l, ip_r; | |
e7fb08b1 PZ |
425 | |
426 | if (left->sym == right->sym) | |
427 | return 0; | |
428 | ||
429 | ip_l = left->sym ? left->sym->start : left->ip; | |
430 | ip_r = right->sym ? right->sym->start : right->ip; | |
431 | ||
432 | return (int64_t)(ip_r - ip_l); | |
433 | } | |
434 | ||
1aa16738 PZ |
435 | static size_t |
436 | sort__sym_print(FILE *fp, struct hist_entry *self) | |
437 | { | |
438 | size_t ret = 0; | |
439 | ||
1aa16738 | 440 | if (verbose) |
0a520c63 IM |
441 | ret += fprintf(fp, " %#018llx", (__u64)self->ip); |
442 | ||
443 | if (self->dso) | |
444 | ret += fprintf(fp, " %s: ", self->dso->name); | |
445 | else | |
446 | ret += fprintf(fp, " %#016llx: ", (__u64)self->ip); | |
1aa16738 | 447 | |
0a520c63 IM |
448 | if (self->sym) |
449 | ret += fprintf(fp, "%s", self->sym->name); | |
450 | else | |
451 | ret += fprintf(fp, "%#016llx", (__u64)self->ip); | |
1aa16738 PZ |
452 | |
453 | return ret; | |
454 | } | |
455 | ||
456 | static struct sort_entry sort_sym = { | |
4593bba8 | 457 | .header = " Shared Object: Symbol", |
ca8cdeef PZ |
458 | .cmp = sort__sym_cmp, |
459 | .print = sort__sym_print, | |
1aa16738 PZ |
460 | }; |
461 | ||
8229289b PZ |
462 | static int sort__need_collapse = 0; |
463 | ||
37f440cb PZ |
464 | struct sort_dimension { |
465 | char *name; | |
466 | struct sort_entry *entry; | |
467 | int taken; | |
468 | }; | |
469 | ||
470 | static struct sort_dimension sort_dimensions[] = { | |
471 | { .name = "pid", .entry = &sort_thread, }, | |
992444b1 | 472 | { .name = "comm", .entry = &sort_comm, }, |
55e5ec41 | 473 | { .name = "dso", .entry = &sort_dso, }, |
37f440cb PZ |
474 | { .name = "symbol", .entry = &sort_sym, }, |
475 | }; | |
476 | ||
1aa16738 PZ |
477 | static LIST_HEAD(hist_entry__sort_list); |
478 | ||
37f440cb PZ |
479 | static int sort_dimension__add(char *tok) |
480 | { | |
481 | int i; | |
482 | ||
483 | for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) { | |
484 | struct sort_dimension *sd = &sort_dimensions[i]; | |
485 | ||
486 | if (sd->taken) | |
487 | continue; | |
488 | ||
5352f35d | 489 | if (strncasecmp(tok, sd->name, strlen(tok))) |
37f440cb PZ |
490 | continue; |
491 | ||
8229289b PZ |
492 | if (sd->entry->collapse) |
493 | sort__need_collapse = 1; | |
494 | ||
37f440cb PZ |
495 | list_add_tail(&sd->entry->list, &hist_entry__sort_list); |
496 | sd->taken = 1; | |
5352f35d | 497 | |
37f440cb PZ |
498 | return 0; |
499 | } | |
500 | ||
501 | return -ESRCH; | |
502 | } | |
503 | ||
1aa16738 PZ |
504 | static int64_t |
505 | hist_entry__cmp(struct hist_entry *left, struct hist_entry *right) | |
506 | { | |
507 | struct sort_entry *se; | |
508 | int64_t cmp = 0; | |
509 | ||
510 | list_for_each_entry(se, &hist_entry__sort_list, list) { | |
511 | cmp = se->cmp(left, right); | |
512 | if (cmp) | |
513 | break; | |
514 | } | |
515 | ||
516 | return cmp; | |
517 | } | |
518 | ||
8229289b PZ |
519 | static int64_t |
520 | hist_entry__collapse(struct hist_entry *left, struct hist_entry *right) | |
521 | { | |
522 | struct sort_entry *se; | |
523 | int64_t cmp = 0; | |
524 | ||
525 | list_for_each_entry(se, &hist_entry__sort_list, list) { | |
526 | int64_t (*f)(struct hist_entry *, struct hist_entry *); | |
527 | ||
528 | f = se->collapse ?: se->cmp; | |
529 | ||
530 | cmp = f(left, right); | |
531 | if (cmp) | |
532 | break; | |
533 | } | |
534 | ||
535 | return cmp; | |
536 | } | |
537 | ||
1aa16738 PZ |
538 | static size_t |
539 | hist_entry__fprintf(FILE *fp, struct hist_entry *self, uint64_t total_samples) | |
540 | { | |
541 | struct sort_entry *se; | |
542 | size_t ret; | |
543 | ||
544 | if (total_samples) { | |
e98e96fe | 545 | ret = fprintf(fp, " %6.2f%%", |
1aa16738 PZ |
546 | (self->count * 100.0) / total_samples); |
547 | } else | |
548 | ret = fprintf(fp, "%12d ", self->count); | |
549 | ||
550 | list_for_each_entry(se, &hist_entry__sort_list, list) | |
551 | ret += se->print(fp, self); | |
552 | ||
553 | ret += fprintf(fp, "\n"); | |
554 | ||
555 | return ret; | |
556 | } | |
557 | ||
558 | /* | |
559 | * collect histogram counts | |
560 | */ | |
561 | ||
e7fb08b1 PZ |
562 | static int |
563 | hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, | |
564 | struct symbol *sym, uint64_t ip, char level) | |
8fa66bdc | 565 | { |
e7fb08b1 PZ |
566 | struct rb_node **p = &hist.rb_node; |
567 | struct rb_node *parent = NULL; | |
568 | struct hist_entry *he; | |
569 | struct hist_entry entry = { | |
570 | .thread = thread, | |
571 | .map = map, | |
572 | .dso = dso, | |
573 | .sym = sym, | |
574 | .ip = ip, | |
575 | .level = level, | |
576 | .count = 1, | |
577 | }; | |
578 | int cmp; | |
579 | ||
580 | while (*p != NULL) { | |
581 | parent = *p; | |
582 | he = rb_entry(parent, struct hist_entry, rb_node); | |
583 | ||
584 | cmp = hist_entry__cmp(&entry, he); | |
585 | ||
586 | if (!cmp) { | |
587 | he->count++; | |
588 | return 0; | |
589 | } | |
590 | ||
591 | if (cmp < 0) | |
592 | p = &(*p)->rb_left; | |
593 | else | |
594 | p = &(*p)->rb_right; | |
ce7e4365 | 595 | } |
e7fb08b1 PZ |
596 | |
597 | he = malloc(sizeof(*he)); | |
598 | if (!he) | |
599 | return -ENOMEM; | |
600 | *he = entry; | |
601 | rb_link_node(&he->rb_node, parent, p); | |
602 | rb_insert_color(&he->rb_node, &hist); | |
603 | ||
604 | return 0; | |
8fa66bdc ACM |
605 | } |
606 | ||
8229289b PZ |
607 | static void hist_entry__free(struct hist_entry *he) |
608 | { | |
609 | free(he); | |
610 | } | |
611 | ||
612 | /* | |
613 | * collapse the histogram | |
614 | */ | |
615 | ||
616 | static struct rb_root collapse_hists; | |
617 | ||
618 | static void collapse__insert_entry(struct hist_entry *he) | |
619 | { | |
620 | struct rb_node **p = &collapse_hists.rb_node; | |
621 | struct rb_node *parent = NULL; | |
622 | struct hist_entry *iter; | |
623 | int64_t cmp; | |
624 | ||
625 | while (*p != NULL) { | |
626 | parent = *p; | |
627 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
628 | ||
629 | cmp = hist_entry__collapse(iter, he); | |
630 | ||
631 | if (!cmp) { | |
632 | iter->count += he->count; | |
633 | hist_entry__free(he); | |
634 | return; | |
635 | } | |
636 | ||
637 | if (cmp < 0) | |
638 | p = &(*p)->rb_left; | |
639 | else | |
640 | p = &(*p)->rb_right; | |
641 | } | |
642 | ||
643 | rb_link_node(&he->rb_node, parent, p); | |
644 | rb_insert_color(&he->rb_node, &collapse_hists); | |
645 | } | |
646 | ||
647 | static void collapse__resort(void) | |
648 | { | |
649 | struct rb_node *next; | |
650 | struct hist_entry *n; | |
651 | ||
652 | if (!sort__need_collapse) | |
653 | return; | |
654 | ||
655 | next = rb_first(&hist); | |
656 | while (next) { | |
657 | n = rb_entry(next, struct hist_entry, rb_node); | |
658 | next = rb_next(&n->rb_node); | |
659 | ||
660 | rb_erase(&n->rb_node, &hist); | |
661 | collapse__insert_entry(n); | |
662 | } | |
663 | } | |
664 | ||
e7fb08b1 PZ |
665 | /* |
666 | * reverse the map, sort on count. | |
667 | */ | |
668 | ||
669 | static struct rb_root output_hists; | |
670 | ||
671 | static void output__insert_entry(struct hist_entry *he) | |
3a4b8cc7 | 672 | { |
e7fb08b1 | 673 | struct rb_node **p = &output_hists.rb_node; |
3a4b8cc7 | 674 | struct rb_node *parent = NULL; |
e7fb08b1 | 675 | struct hist_entry *iter; |
3a4b8cc7 ACM |
676 | |
677 | while (*p != NULL) { | |
678 | parent = *p; | |
e7fb08b1 | 679 | iter = rb_entry(parent, struct hist_entry, rb_node); |
3a4b8cc7 | 680 | |
e7fb08b1 | 681 | if (he->count > iter->count) |
3a4b8cc7 ACM |
682 | p = &(*p)->rb_left; |
683 | else | |
684 | p = &(*p)->rb_right; | |
685 | } | |
686 | ||
e7fb08b1 PZ |
687 | rb_link_node(&he->rb_node, parent, p); |
688 | rb_insert_color(&he->rb_node, &output_hists); | |
3a4b8cc7 ACM |
689 | } |
690 | ||
e7fb08b1 | 691 | static void output__resort(void) |
3a4b8cc7 | 692 | { |
8229289b | 693 | struct rb_node *next; |
e7fb08b1 | 694 | struct hist_entry *n; |
3a4b8cc7 | 695 | |
8229289b PZ |
696 | if (sort__need_collapse) |
697 | next = rb_first(&collapse_hists); | |
698 | else | |
699 | next = rb_first(&hist); | |
700 | ||
e7fb08b1 PZ |
701 | while (next) { |
702 | n = rb_entry(next, struct hist_entry, rb_node); | |
703 | next = rb_next(&n->rb_node); | |
3a4b8cc7 | 704 | |
e7fb08b1 PZ |
705 | rb_erase(&n->rb_node, &hist); |
706 | output__insert_entry(n); | |
3a4b8cc7 ACM |
707 | } |
708 | } | |
709 | ||
e7fb08b1 | 710 | static size_t output__fprintf(FILE *fp, uint64_t total_samples) |
3a4b8cc7 | 711 | { |
e7fb08b1 | 712 | struct hist_entry *pos; |
2d65537e | 713 | struct sort_entry *se; |
3a4b8cc7 ACM |
714 | struct rb_node *nd; |
715 | size_t ret = 0; | |
716 | ||
ca8cdeef PZ |
717 | fprintf(fp, "#\n"); |
718 | ||
719 | fprintf(fp, "# Overhead"); | |
720 | list_for_each_entry(se, &hist_entry__sort_list, list) | |
721 | fprintf(fp, " %s", se->header); | |
722 | fprintf(fp, "\n"); | |
723 | ||
724 | fprintf(fp, "# ........"); | |
2d65537e | 725 | list_for_each_entry(se, &hist_entry__sort_list, list) { |
ca8cdeef PZ |
726 | int i; |
727 | ||
4593bba8 IM |
728 | fprintf(fp, " "); |
729 | for (i = 0; i < strlen(se->header)-1; i++) | |
ca8cdeef | 730 | fprintf(fp, "."); |
2d65537e | 731 | } |
ca8cdeef PZ |
732 | fprintf(fp, "\n"); |
733 | ||
734 | fprintf(fp, "#\n"); | |
2d65537e | 735 | |
e7fb08b1 PZ |
736 | for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) { |
737 | pos = rb_entry(nd, struct hist_entry, rb_node); | |
738 | ret += hist_entry__fprintf(fp, pos, total_samples); | |
3a4b8cc7 ACM |
739 | } |
740 | ||
741 | return ret; | |
742 | } | |
743 | ||
436224a6 PZ |
744 | static void register_idle_thread(void) |
745 | { | |
746 | struct thread *thread = threads__findnew(0); | |
747 | ||
748 | if (thread == NULL || | |
749 | thread__set_comm(thread, "[idle]")) { | |
750 | fprintf(stderr, "problem inserting idle task.\n"); | |
751 | exit(-1); | |
752 | } | |
753 | } | |
754 | ||
e7fb08b1 | 755 | |
53cb8bc2 | 756 | static int __cmd_report(void) |
8fa66bdc ACM |
757 | { |
758 | unsigned long offset = 0; | |
759 | unsigned long head = 0; | |
760 | struct stat stat; | |
761 | char *buf; | |
762 | event_t *event; | |
763 | int ret, rc = EXIT_FAILURE; | |
6142f9ec | 764 | uint32_t size; |
f49515b1 | 765 | unsigned long total = 0, total_mmap = 0, total_comm = 0, total_unknown = 0; |
b78c07d4 ACM |
766 | char cwd[PATH_MAX], *cwdp = cwd; |
767 | int cwdlen; | |
8fa66bdc | 768 | |
436224a6 PZ |
769 | register_idle_thread(); |
770 | ||
8fa66bdc ACM |
771 | input = open(input_name, O_RDONLY); |
772 | if (input < 0) { | |
773 | perror("failed to open file"); | |
774 | exit(-1); | |
775 | } | |
776 | ||
777 | ret = fstat(input, &stat); | |
778 | if (ret < 0) { | |
779 | perror("failed to stat file"); | |
780 | exit(-1); | |
781 | } | |
782 | ||
783 | if (!stat.st_size) { | |
784 | fprintf(stderr, "zero-sized file, nothing to do!\n"); | |
785 | exit(0); | |
786 | } | |
787 | ||
450aaa2b | 788 | if (load_kernel() < 0) { |
a2928c42 | 789 | perror("failed to load kernel symbols"); |
8fa66bdc ACM |
790 | return EXIT_FAILURE; |
791 | } | |
792 | ||
b78c07d4 ACM |
793 | if (!full_paths) { |
794 | if (getcwd(cwd, sizeof(cwd)) == NULL) { | |
795 | perror("failed to get the current directory"); | |
796 | return EXIT_FAILURE; | |
797 | } | |
798 | cwdlen = strlen(cwd); | |
10a28255 | 799 | } else { |
b78c07d4 | 800 | cwdp = NULL; |
10a28255 MG |
801 | cwdlen = 0; |
802 | } | |
8fa66bdc ACM |
803 | remap: |
804 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, | |
805 | MAP_SHARED, input, offset); | |
806 | if (buf == MAP_FAILED) { | |
807 | perror("failed to mmap file"); | |
808 | exit(-1); | |
809 | } | |
810 | ||
811 | more: | |
812 | event = (event_t *)(buf + head); | |
813 | ||
6142f9ec PZ |
814 | size = event->header.size; |
815 | if (!size) | |
816 | size = 8; | |
817 | ||
8fa66bdc ACM |
818 | if (head + event->header.size >= page_size * mmap_window) { |
819 | unsigned long shift = page_size * (head / page_size); | |
820 | int ret; | |
821 | ||
822 | ret = munmap(buf, page_size * mmap_window); | |
823 | assert(ret == 0); | |
824 | ||
825 | offset += shift; | |
826 | head -= shift; | |
827 | goto remap; | |
828 | } | |
829 | ||
6142f9ec PZ |
830 | size = event->header.size; |
831 | if (!size) | |
832 | goto broken_event; | |
8fa66bdc | 833 | |
8fa66bdc ACM |
834 | if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) { |
835 | char level; | |
836 | int show = 0; | |
837 | struct dso *dso = NULL; | |
838 | struct thread *thread = threads__findnew(event->ip.pid); | |
f17e04af | 839 | uint64_t ip = event->ip.ip; |
e7fb08b1 | 840 | struct map *map = NULL; |
8fa66bdc | 841 | |
3502973d IM |
842 | dprintf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n", |
843 | (void *)(offset + head), | |
844 | (void *)(long)(event->header.size), | |
845 | event->header.misc, | |
846 | event->ip.pid, | |
847 | (void *)(long)ip); | |
97b07b69 | 848 | |
ed966aac IM |
849 | dprintf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
850 | ||
ce7e4365 | 851 | if (thread == NULL) { |
55717314 | 852 | fprintf(stderr, "problem processing %d event, skipping it.\n", |
ce7e4365 | 853 | event->header.type); |
55717314 | 854 | goto broken_event; |
ce7e4365 | 855 | } |
8fa66bdc ACM |
856 | |
857 | if (event->header.misc & PERF_EVENT_MISC_KERNEL) { | |
858 | show = SHOW_KERNEL; | |
859 | level = 'k'; | |
e7fb08b1 | 860 | |
8fa66bdc | 861 | dso = kernel_dso; |
e7fb08b1 | 862 | |
ed966aac IM |
863 | dprintf(" ...... dso: %s\n", dso->name); |
864 | ||
8fa66bdc | 865 | } else if (event->header.misc & PERF_EVENT_MISC_USER) { |
16f762a2 | 866 | |
8fa66bdc ACM |
867 | show = SHOW_USER; |
868 | level = '.'; | |
16f762a2 IM |
869 | |
870 | map = thread__find_map(thread, ip); | |
f17e04af | 871 | if (map != NULL) { |
8fa66bdc | 872 | dso = map->dso; |
f17e04af | 873 | ip -= map->start + map->pgoff; |
ed966aac IM |
874 | } else { |
875 | /* | |
876 | * If this is outside of all known maps, | |
877 | * and is a negative address, try to look it | |
878 | * up in the kernel dso, as it might be a | |
879 | * vsyscall (which executes in user-mode): | |
880 | */ | |
881 | if ((long long)ip < 0) | |
882 | dso = kernel_dso; | |
f17e04af | 883 | } |
ed966aac | 884 | dprintf(" ...... dso: %s\n", dso ? dso->name : "<not found>"); |
e7fb08b1 | 885 | |
8fa66bdc ACM |
886 | } else { |
887 | show = SHOW_HV; | |
888 | level = 'H'; | |
ed966aac | 889 | dprintf(" ...... dso: [hypervisor]\n"); |
8fa66bdc ACM |
890 | } |
891 | ||
892 | if (show & show_mask) { | |
f17e04af | 893 | struct symbol *sym = dso__find_symbol(dso, ip); |
8fa66bdc | 894 | |
e7fb08b1 PZ |
895 | if (hist_entry__add(thread, map, dso, sym, ip, level)) { |
896 | fprintf(stderr, | |
55717314 IM |
897 | "problem incrementing symbol count, skipping event\n"); |
898 | goto broken_event; | |
ce7e4365 | 899 | } |
8fa66bdc ACM |
900 | } |
901 | total++; | |
902 | } else switch (event->header.type) { | |
903 | case PERF_EVENT_MMAP: { | |
904 | struct thread *thread = threads__findnew(event->mmap.pid); | |
b78c07d4 | 905 | struct map *map = map__new(&event->mmap, cwdp, cwdlen); |
8fa66bdc | 906 | |
3502973d IM |
907 | dprintf("%p [%p]: PERF_EVENT_MMAP: [%p(%p) @ %p]: %s\n", |
908 | (void *)(offset + head), | |
909 | (void *)(long)(event->header.size), | |
910 | (void *)(long)event->mmap.start, | |
911 | (void *)(long)event->mmap.len, | |
912 | (void *)(long)event->mmap.pgoff, | |
913 | event->mmap.filename); | |
914 | ||
ce7e4365 | 915 | if (thread == NULL || map == NULL) { |
0a520c63 IM |
916 | if (verbose) |
917 | fprintf(stderr, "problem processing PERF_EVENT_MMAP, skipping event.\n"); | |
55717314 | 918 | goto broken_event; |
ce7e4365 | 919 | } |
8fa66bdc | 920 | thread__insert_map(thread, map); |
97b07b69 | 921 | total_mmap++; |
8fa66bdc ACM |
922 | break; |
923 | } | |
924 | case PERF_EVENT_COMM: { | |
925 | struct thread *thread = threads__findnew(event->comm.pid); | |
926 | ||
3502973d IM |
927 | dprintf("%p [%p]: PERF_EVENT_COMM: %s:%d\n", |
928 | (void *)(offset + head), | |
929 | (void *)(long)(event->header.size), | |
930 | event->comm.comm, event->comm.pid); | |
931 | ||
8fa66bdc | 932 | if (thread == NULL || |
ce7e4365 | 933 | thread__set_comm(thread, event->comm.comm)) { |
55717314 IM |
934 | fprintf(stderr, "problem processing PERF_EVENT_COMM, skipping event.\n"); |
935 | goto broken_event; | |
ce7e4365 | 936 | } |
97b07b69 | 937 | total_comm++; |
8fa66bdc ACM |
938 | break; |
939 | } | |
97b07b69 | 940 | default: { |
6142f9ec | 941 | broken_event: |
3502973d IM |
942 | dprintf("%p [%p]: skipping unknown header type: %d\n", |
943 | (void *)(offset + head), | |
944 | (void *)(long)(event->header.size), | |
945 | event->header.type); | |
b7a16eac | 946 | |
3e706114 | 947 | total_unknown++; |
6142f9ec PZ |
948 | |
949 | /* | |
950 | * assume we lost track of the stream, check alignment, and | |
951 | * increment a single u64 in the hope to catch on again 'soon'. | |
952 | */ | |
953 | ||
954 | if (unlikely(head & 7)) | |
955 | head &= ~7ULL; | |
956 | ||
957 | size = 8; | |
97b07b69 | 958 | } |
8fa66bdc ACM |
959 | } |
960 | ||
6142f9ec | 961 | head += size; |
f49515b1 | 962 | |
8fa66bdc ACM |
963 | if (offset + head < stat.st_size) |
964 | goto more; | |
965 | ||
966 | rc = EXIT_SUCCESS; | |
8fa66bdc | 967 | close(input); |
97b07b69 | 968 | |
3502973d IM |
969 | dprintf(" IP events: %10ld\n", total); |
970 | dprintf(" mmap events: %10ld\n", total_mmap); | |
971 | dprintf(" comm events: %10ld\n", total_comm); | |
972 | dprintf(" unknown events: %10ld\n", total_unknown); | |
97b07b69 | 973 | |
3502973d | 974 | if (dump_trace) |
97b07b69 | 975 | return 0; |
97b07b69 | 976 | |
e7fb08b1 | 977 | if (verbose >= 2) |
16f762a2 | 978 | dsos__fprintf(stdout); |
16f762a2 | 979 | |
8229289b | 980 | collapse__resort(); |
e7fb08b1 PZ |
981 | output__resort(); |
982 | output__fprintf(stdout, total); | |
8fa66bdc | 983 | |
8fa66bdc ACM |
984 | return rc; |
985 | } | |
986 | ||
53cb8bc2 IM |
987 | static const char * const report_usage[] = { |
988 | "perf report [<options>] <command>", | |
989 | NULL | |
990 | }; | |
991 | ||
992 | static const struct option options[] = { | |
993 | OPT_STRING('i', "input", &input_name, "file", | |
994 | "input file name"), | |
815e777f ACM |
995 | OPT_BOOLEAN('v', "verbose", &verbose, |
996 | "be more verbose (show symbol address, etc)"), | |
97b07b69 IM |
997 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
998 | "dump raw trace in ASCII"), | |
450aaa2b | 999 | OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"), |
63299f05 IM |
1000 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1001 | "sort by key(s): pid, comm, dso, symbol. Default: pid,symbol"), | |
b78c07d4 ACM |
1002 | OPT_BOOLEAN('P', "full-paths", &full_paths, |
1003 | "Don't shorten the pathnames taking into account the cwd"), | |
53cb8bc2 IM |
1004 | OPT_END() |
1005 | }; | |
1006 | ||
5352f35d IM |
1007 | static void setup_sorting(void) |
1008 | { | |
1009 | char *tmp, *tok, *str = strdup(sort_order); | |
1010 | ||
1011 | for (tok = strtok_r(str, ", ", &tmp); | |
1012 | tok; tok = strtok_r(NULL, ", ", &tmp)) { | |
1013 | if (sort_dimension__add(tok) < 0) { | |
1014 | error("Unknown --sort key: `%s'", tok); | |
1015 | usage_with_options(report_usage, options); | |
1016 | } | |
1017 | } | |
1018 | ||
1019 | free(str); | |
1020 | } | |
1021 | ||
53cb8bc2 IM |
1022 | int cmd_report(int argc, const char **argv, const char *prefix) |
1023 | { | |
a2928c42 | 1024 | symbol__init(); |
53cb8bc2 IM |
1025 | |
1026 | page_size = getpagesize(); | |
1027 | ||
1028 | parse_options(argc, argv, options, report_usage, 0); | |
1029 | ||
1aa16738 PZ |
1030 | setup_sorting(); |
1031 | ||
a930d2c0 IM |
1032 | setup_pager(); |
1033 | ||
53cb8bc2 IM |
1034 | return __cmd_report(); |
1035 | } |