Commit | Line | Data |
---|---|---|
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 | ||
8fc0321f | 12 | #include "util/color.h" |
35a50c8a | 13 | #include "util/list.h" |
a930d2c0 | 14 | #include "util/cache.h" |
35a50c8a | 15 | #include "util/rbtree.h" |
a2928c42 | 16 | #include "util/symbol.h" |
a0055ae2 | 17 | #include "util/string.h" |
8fa66bdc | 18 | |
53cb8bc2 IM |
19 | #include "perf.h" |
20 | ||
21 | #include "util/parse-options.h" | |
22 | #include "util/parse-events.h" | |
23 | ||
8fa66bdc ACM |
24 | #define SHOW_KERNEL 1 |
25 | #define SHOW_USER 2 | |
26 | #define SHOW_HV 4 | |
27 | ||
23ac9cbe | 28 | static char const *input_name = "perf.data"; |
450aaa2b | 29 | static char *vmlinux = NULL; |
bd74137e IM |
30 | |
31 | static char default_sort_order[] = "comm,dso"; | |
32 | static char *sort_order = default_sort_order; | |
33 | ||
8fa66bdc ACM |
34 | static int input; |
35 | static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; | |
36 | ||
97b07b69 | 37 | static int dump_trace = 0; |
3502973d IM |
38 | #define dprintf(x...) do { if (dump_trace) printf(x); } while (0) |
39 | ||
16f762a2 | 40 | static int verbose; |
b78c07d4 | 41 | static int full_paths; |
97b07b69 | 42 | |
8fa66bdc ACM |
43 | static unsigned long page_size; |
44 | static unsigned long mmap_window = 32; | |
45 | ||
53cb8bc2 | 46 | const char *perf_event_names[] = { |
8fa66bdc ACM |
47 | [PERF_EVENT_MMAP] = " PERF_EVENT_MMAP", |
48 | [PERF_EVENT_MUNMAP] = " PERF_EVENT_MUNMAP", | |
49 | [PERF_EVENT_COMM] = " PERF_EVENT_COMM", | |
50 | }; | |
51 | ||
52 | struct ip_event { | |
53 | struct perf_event_header header; | |
54 | __u64 ip; | |
55 | __u32 pid, tid; | |
56 | }; | |
75051724 | 57 | |
8fa66bdc ACM |
58 | struct mmap_event { |
59 | struct perf_event_header header; | |
60 | __u32 pid, tid; | |
61 | __u64 start; | |
62 | __u64 len; | |
63 | __u64 pgoff; | |
64 | char filename[PATH_MAX]; | |
65 | }; | |
75051724 | 66 | |
8fa66bdc ACM |
67 | struct comm_event { |
68 | struct perf_event_header header; | |
75051724 | 69 | __u32 pid, tid; |
8fa66bdc ACM |
70 | char comm[16]; |
71 | }; | |
72 | ||
73 | typedef union event_union { | |
74 | struct perf_event_header header; | |
75 | struct ip_event ip; | |
76 | struct mmap_event mmap; | |
77 | struct comm_event comm; | |
78 | } event_t; | |
79 | ||
8fa66bdc ACM |
80 | static LIST_HEAD(dsos); |
81 | static struct dso *kernel_dso; | |
82 | ||
83 | static void dsos__add(struct dso *dso) | |
84 | { | |
85 | list_add_tail(&dso->node, &dsos); | |
86 | } | |
87 | ||
88 | static struct dso *dsos__find(const char *name) | |
89 | { | |
90 | struct dso *pos; | |
91 | ||
92 | list_for_each_entry(pos, &dsos, node) | |
93 | if (strcmp(pos->name, name) == 0) | |
94 | return pos; | |
95 | return NULL; | |
96 | } | |
97 | ||
98 | static struct dso *dsos__findnew(const char *name) | |
99 | { | |
100 | struct dso *dso = dsos__find(name); | |
b7a16eac | 101 | int nr; |
8fa66bdc | 102 | |
4593bba8 IM |
103 | if (dso) |
104 | return dso; | |
105 | ||
106 | dso = dso__new(name, 0); | |
107 | if (!dso) | |
108 | goto out_delete_dso; | |
8fa66bdc | 109 | |
bd74137e | 110 | nr = dso__load(dso, NULL, verbose); |
4593bba8 | 111 | if (nr < 0) { |
bd74137e IM |
112 | if (verbose) |
113 | fprintf(stderr, "Failed to open: %s\n", name); | |
4593bba8 | 114 | goto out_delete_dso; |
8fa66bdc | 115 | } |
4593bba8 IM |
116 | if (!nr && verbose) { |
117 | fprintf(stderr, | |
118 | "No symbols found in: %s, maybe install a debug package?\n", | |
119 | name); | |
120 | } | |
121 | ||
122 | dsos__add(dso); | |
8fa66bdc ACM |
123 | |
124 | return dso; | |
125 | ||
126 | out_delete_dso: | |
127 | dso__delete(dso); | |
128 | return NULL; | |
129 | } | |
130 | ||
16f762a2 | 131 | static void dsos__fprintf(FILE *fp) |
8fa66bdc ACM |
132 | { |
133 | struct dso *pos; | |
134 | ||
135 | list_for_each_entry(pos, &dsos, node) | |
136 | dso__fprintf(pos, fp); | |
137 | } | |
138 | ||
450aaa2b PZ |
139 | static int load_kernel(void) |
140 | { | |
a827c875 | 141 | int err; |
450aaa2b | 142 | |
0085c954 | 143 | kernel_dso = dso__new("[kernel]", 0); |
450aaa2b | 144 | if (!kernel_dso) |
a2928c42 | 145 | return -1; |
450aaa2b | 146 | |
bd74137e | 147 | err = dso__load_kernel(kernel_dso, vmlinux, NULL, verbose); |
a2928c42 ACM |
148 | if (err) { |
149 | dso__delete(kernel_dso); | |
150 | kernel_dso = NULL; | |
151 | } else | |
152 | dsos__add(kernel_dso); | |
450aaa2b | 153 | |
a2928c42 | 154 | return err; |
450aaa2b PZ |
155 | } |
156 | ||
d80d338d IM |
157 | static char __cwd[PATH_MAX]; |
158 | static char *cwd = __cwd; | |
159 | static int cwdlen; | |
160 | ||
161 | static int strcommon(const char *pathname) | |
b78c07d4 ACM |
162 | { |
163 | int n = 0; | |
164 | ||
165 | while (pathname[n] == cwd[n] && n < cwdlen) | |
166 | ++n; | |
167 | ||
168 | return n; | |
169 | } | |
170 | ||
8fa66bdc ACM |
171 | struct map { |
172 | struct list_head node; | |
173 | uint64_t start; | |
174 | uint64_t end; | |
175 | uint64_t pgoff; | |
176 | struct dso *dso; | |
177 | }; | |
178 | ||
d80d338d | 179 | static struct map *map__new(struct mmap_event *event) |
8fa66bdc ACM |
180 | { |
181 | struct map *self = malloc(sizeof(*self)); | |
182 | ||
183 | if (self != NULL) { | |
b78c07d4 ACM |
184 | const char *filename = event->filename; |
185 | char newfilename[PATH_MAX]; | |
186 | ||
187 | if (cwd) { | |
d80d338d IM |
188 | int n = strcommon(filename); |
189 | ||
b78c07d4 ACM |
190 | if (n == cwdlen) { |
191 | snprintf(newfilename, sizeof(newfilename), | |
192 | ".%s", filename + n); | |
193 | filename = newfilename; | |
194 | } | |
195 | } | |
196 | ||
8fa66bdc ACM |
197 | self->start = event->start; |
198 | self->end = event->start + event->len; | |
199 | self->pgoff = event->pgoff; | |
200 | ||
b78c07d4 | 201 | self->dso = dsos__findnew(filename); |
8fa66bdc ACM |
202 | if (self->dso == NULL) |
203 | goto out_delete; | |
204 | } | |
205 | return self; | |
206 | out_delete: | |
207 | free(self); | |
208 | return NULL; | |
209 | } | |
210 | ||
3a4b8cc7 ACM |
211 | struct thread; |
212 | ||
8fa66bdc | 213 | struct thread { |
ce7e4365 | 214 | struct rb_node rb_node; |
8fa66bdc | 215 | struct list_head maps; |
8fa66bdc ACM |
216 | pid_t pid; |
217 | char *comm; | |
218 | }; | |
219 | ||
220 | static struct thread *thread__new(pid_t pid) | |
221 | { | |
222 | struct thread *self = malloc(sizeof(*self)); | |
223 | ||
224 | if (self != NULL) { | |
225 | self->pid = pid; | |
8229289b | 226 | self->comm = malloc(32); |
0a520c63 | 227 | if (self->comm) |
8229289b | 228 | snprintf(self->comm, 32, ":%d", self->pid); |
8fa66bdc | 229 | INIT_LIST_HEAD(&self->maps); |
8fa66bdc ACM |
230 | } |
231 | ||
232 | return self; | |
233 | } | |
234 | ||
8fa66bdc ACM |
235 | static int thread__set_comm(struct thread *self, const char *comm) |
236 | { | |
8229289b PZ |
237 | if (self->comm) |
238 | free(self->comm); | |
8fa66bdc ACM |
239 | self->comm = strdup(comm); |
240 | return self->comm ? 0 : -ENOMEM; | |
241 | } | |
242 | ||
16f762a2 | 243 | static struct rb_root threads; |
eed4dcd4 | 244 | static struct thread *last_match; |
8fa66bdc | 245 | |
ce7e4365 | 246 | static struct thread *threads__findnew(pid_t pid) |
8fa66bdc | 247 | { |
ce7e4365 ACM |
248 | struct rb_node **p = &threads.rb_node; |
249 | struct rb_node *parent = NULL; | |
250 | struct thread *th; | |
8fa66bdc | 251 | |
eed4dcd4 IM |
252 | /* |
253 | * Font-end cache - PID lookups come in blocks, | |
254 | * so most of the time we dont have to look up | |
255 | * the full rbtree: | |
256 | */ | |
257 | if (last_match && last_match->pid == pid) | |
258 | return last_match; | |
259 | ||
ce7e4365 ACM |
260 | while (*p != NULL) { |
261 | parent = *p; | |
262 | th = rb_entry(parent, struct thread, rb_node); | |
8fa66bdc | 263 | |
eed4dcd4 IM |
264 | if (th->pid == pid) { |
265 | last_match = th; | |
ce7e4365 | 266 | return th; |
eed4dcd4 | 267 | } |
8fa66bdc | 268 | |
ce7e4365 ACM |
269 | if (pid < th->pid) |
270 | p = &(*p)->rb_left; | |
271 | else | |
272 | p = &(*p)->rb_right; | |
8fa66bdc ACM |
273 | } |
274 | ||
ce7e4365 ACM |
275 | th = thread__new(pid); |
276 | if (th != NULL) { | |
277 | rb_link_node(&th->rb_node, parent, p); | |
278 | rb_insert_color(&th->rb_node, &threads); | |
eed4dcd4 | 279 | last_match = th; |
ce7e4365 | 280 | } |
eed4dcd4 | 281 | |
ce7e4365 | 282 | return th; |
8fa66bdc ACM |
283 | } |
284 | ||
285 | static void thread__insert_map(struct thread *self, struct map *map) | |
286 | { | |
287 | list_add_tail(&map->node, &self->maps); | |
288 | } | |
289 | ||
290 | static struct map *thread__find_map(struct thread *self, uint64_t ip) | |
291 | { | |
16f762a2 IM |
292 | struct map *pos; |
293 | ||
8fa66bdc ACM |
294 | if (self == NULL) |
295 | return NULL; | |
296 | ||
8fa66bdc ACM |
297 | list_for_each_entry(pos, &self->maps, node) |
298 | if (ip >= pos->start && ip <= pos->end) | |
299 | return pos; | |
300 | ||
301 | return NULL; | |
302 | } | |
303 | ||
e7fb08b1 PZ |
304 | /* |
305 | * histogram, sorted on item, collects counts | |
306 | */ | |
307 | ||
308 | static struct rb_root hist; | |
309 | ||
310 | struct hist_entry { | |
311 | struct rb_node rb_node; | |
312 | ||
313 | struct thread *thread; | |
314 | struct map *map; | |
315 | struct dso *dso; | |
316 | struct symbol *sym; | |
317 | uint64_t ip; | |
318 | char level; | |
319 | ||
320 | uint32_t count; | |
321 | }; | |
322 | ||
1aa16738 PZ |
323 | /* |
324 | * configurable sorting bits | |
325 | */ | |
326 | ||
327 | struct sort_entry { | |
328 | struct list_head list; | |
329 | ||
ca8cdeef PZ |
330 | char *header; |
331 | ||
1aa16738 | 332 | int64_t (*cmp)(struct hist_entry *, struct hist_entry *); |
8229289b | 333 | int64_t (*collapse)(struct hist_entry *, struct hist_entry *); |
1aa16738 PZ |
334 | size_t (*print)(FILE *fp, struct hist_entry *); |
335 | }; | |
336 | ||
8229289b PZ |
337 | /* --sort pid */ |
338 | ||
e7fb08b1 | 339 | static int64_t |
1aa16738 | 340 | sort__thread_cmp(struct hist_entry *left, struct hist_entry *right) |
e7fb08b1 | 341 | { |
1aa16738 PZ |
342 | return right->thread->pid - left->thread->pid; |
343 | } | |
344 | ||
345 | static size_t | |
346 | sort__thread_print(FILE *fp, struct hist_entry *self) | |
347 | { | |
71dd8945 | 348 | return fprintf(fp, "%16s:%5d", self->thread->comm ?: "", self->thread->pid); |
1aa16738 | 349 | } |
e7fb08b1 | 350 | |
1aa16738 | 351 | static struct sort_entry sort_thread = { |
71dd8945 | 352 | .header = " Command: Pid", |
1aa16738 PZ |
353 | .cmp = sort__thread_cmp, |
354 | .print = sort__thread_print, | |
355 | }; | |
356 | ||
8229289b PZ |
357 | /* --sort comm */ |
358 | ||
992444b1 PZ |
359 | static int64_t |
360 | sort__comm_cmp(struct hist_entry *left, struct hist_entry *right) | |
8229289b PZ |
361 | { |
362 | return right->thread->pid - left->thread->pid; | |
363 | } | |
364 | ||
365 | static int64_t | |
366 | sort__comm_collapse(struct hist_entry *left, struct hist_entry *right) | |
992444b1 PZ |
367 | { |
368 | char *comm_l = left->thread->comm; | |
369 | char *comm_r = right->thread->comm; | |
370 | ||
371 | if (!comm_l || !comm_r) { | |
372 | if (!comm_l && !comm_r) | |
373 | return 0; | |
374 | else if (!comm_l) | |
375 | return -1; | |
376 | else | |
377 | return 1; | |
378 | } | |
379 | ||
380 | return strcmp(comm_l, comm_r); | |
381 | } | |
382 | ||
383 | static size_t | |
384 | sort__comm_print(FILE *fp, struct hist_entry *self) | |
385 | { | |
71dd8945 | 386 | return fprintf(fp, "%16s", self->thread->comm); |
992444b1 PZ |
387 | } |
388 | ||
389 | static struct sort_entry sort_comm = { | |
71dd8945 | 390 | .header = " Command", |
8229289b PZ |
391 | .cmp = sort__comm_cmp, |
392 | .collapse = sort__comm_collapse, | |
393 | .print = sort__comm_print, | |
992444b1 PZ |
394 | }; |
395 | ||
8229289b PZ |
396 | /* --sort dso */ |
397 | ||
55e5ec41 PZ |
398 | static int64_t |
399 | sort__dso_cmp(struct hist_entry *left, struct hist_entry *right) | |
400 | { | |
401 | struct dso *dso_l = left->dso; | |
402 | struct dso *dso_r = right->dso; | |
403 | ||
404 | if (!dso_l || !dso_r) { | |
405 | if (!dso_l && !dso_r) | |
406 | return 0; | |
407 | else if (!dso_l) | |
408 | return -1; | |
409 | else | |
410 | return 1; | |
411 | } | |
412 | ||
413 | return strcmp(dso_l->name, dso_r->name); | |
414 | } | |
415 | ||
416 | static size_t | |
417 | sort__dso_print(FILE *fp, struct hist_entry *self) | |
418 | { | |
0a520c63 | 419 | if (self->dso) |
71dd8945 | 420 | return fprintf(fp, "%-25s", self->dso->name); |
0a520c63 | 421 | |
71dd8945 | 422 | return fprintf(fp, "%016llx ", (__u64)self->ip); |
55e5ec41 PZ |
423 | } |
424 | ||
425 | static struct sort_entry sort_dso = { | |
71dd8945 | 426 | .header = "Shared Object ", |
55e5ec41 PZ |
427 | .cmp = sort__dso_cmp, |
428 | .print = sort__dso_print, | |
429 | }; | |
430 | ||
8229289b PZ |
431 | /* --sort symbol */ |
432 | ||
1aa16738 PZ |
433 | static int64_t |
434 | sort__sym_cmp(struct hist_entry *left, struct hist_entry *right) | |
435 | { | |
436 | uint64_t ip_l, ip_r; | |
e7fb08b1 PZ |
437 | |
438 | if (left->sym == right->sym) | |
439 | return 0; | |
440 | ||
441 | ip_l = left->sym ? left->sym->start : left->ip; | |
442 | ip_r = right->sym ? right->sym->start : right->ip; | |
443 | ||
444 | return (int64_t)(ip_r - ip_l); | |
445 | } | |
446 | ||
1aa16738 PZ |
447 | static size_t |
448 | sort__sym_print(FILE *fp, struct hist_entry *self) | |
449 | { | |
450 | size_t ret = 0; | |
451 | ||
1aa16738 | 452 | if (verbose) |
71dd8945 | 453 | ret += fprintf(fp, "%#018llx ", (__u64)self->ip); |
0a520c63 | 454 | |
0a520c63 | 455 | if (self->sym) |
71dd8945 | 456 | ret += fprintf(fp, "%s", self->sym->name); |
0a520c63 | 457 | else |
71dd8945 | 458 | ret += fprintf(fp, "%#016llx", (__u64)self->ip); |
1aa16738 PZ |
459 | |
460 | return ret; | |
461 | } | |
462 | ||
463 | static struct sort_entry sort_sym = { | |
71dd8945 | 464 | .header = "Symbol", |
ca8cdeef PZ |
465 | .cmp = sort__sym_cmp, |
466 | .print = sort__sym_print, | |
1aa16738 PZ |
467 | }; |
468 | ||
8229289b PZ |
469 | static int sort__need_collapse = 0; |
470 | ||
37f440cb PZ |
471 | struct sort_dimension { |
472 | char *name; | |
473 | struct sort_entry *entry; | |
474 | int taken; | |
475 | }; | |
476 | ||
477 | static struct sort_dimension sort_dimensions[] = { | |
478 | { .name = "pid", .entry = &sort_thread, }, | |
992444b1 | 479 | { .name = "comm", .entry = &sort_comm, }, |
55e5ec41 | 480 | { .name = "dso", .entry = &sort_dso, }, |
37f440cb PZ |
481 | { .name = "symbol", .entry = &sort_sym, }, |
482 | }; | |
483 | ||
1aa16738 PZ |
484 | static LIST_HEAD(hist_entry__sort_list); |
485 | ||
37f440cb PZ |
486 | static int sort_dimension__add(char *tok) |
487 | { | |
488 | int i; | |
489 | ||
490 | for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) { | |
491 | struct sort_dimension *sd = &sort_dimensions[i]; | |
492 | ||
493 | if (sd->taken) | |
494 | continue; | |
495 | ||
5352f35d | 496 | if (strncasecmp(tok, sd->name, strlen(tok))) |
37f440cb PZ |
497 | continue; |
498 | ||
8229289b PZ |
499 | if (sd->entry->collapse) |
500 | sort__need_collapse = 1; | |
501 | ||
37f440cb PZ |
502 | list_add_tail(&sd->entry->list, &hist_entry__sort_list); |
503 | sd->taken = 1; | |
5352f35d | 504 | |
37f440cb PZ |
505 | return 0; |
506 | } | |
507 | ||
508 | return -ESRCH; | |
509 | } | |
510 | ||
1aa16738 PZ |
511 | static int64_t |
512 | hist_entry__cmp(struct hist_entry *left, struct hist_entry *right) | |
513 | { | |
514 | struct sort_entry *se; | |
515 | int64_t cmp = 0; | |
516 | ||
517 | list_for_each_entry(se, &hist_entry__sort_list, list) { | |
518 | cmp = se->cmp(left, right); | |
519 | if (cmp) | |
520 | break; | |
521 | } | |
522 | ||
523 | return cmp; | |
524 | } | |
525 | ||
8229289b PZ |
526 | static int64_t |
527 | hist_entry__collapse(struct hist_entry *left, struct hist_entry *right) | |
528 | { | |
529 | struct sort_entry *se; | |
530 | int64_t cmp = 0; | |
531 | ||
532 | list_for_each_entry(se, &hist_entry__sort_list, list) { | |
533 | int64_t (*f)(struct hist_entry *, struct hist_entry *); | |
534 | ||
535 | f = se->collapse ?: se->cmp; | |
536 | ||
537 | cmp = f(left, right); | |
538 | if (cmp) | |
539 | break; | |
540 | } | |
541 | ||
542 | return cmp; | |
543 | } | |
544 | ||
1aa16738 PZ |
545 | static size_t |
546 | hist_entry__fprintf(FILE *fp, struct hist_entry *self, uint64_t total_samples) | |
547 | { | |
548 | struct sort_entry *se; | |
549 | size_t ret; | |
550 | ||
551 | if (total_samples) { | |
8fc0321f IM |
552 | double percent = self->count * 100.0 / total_samples; |
553 | char *color = PERF_COLOR_NORMAL; | |
554 | ||
555 | /* | |
556 | * We color high-overhead entries in red, low-overhead | |
557 | * entries in green - and keep the middle ground normal: | |
558 | */ | |
559 | if (percent >= 5.0) | |
560 | color = PERF_COLOR_RED; | |
561 | if (percent < 0.5) | |
562 | color = PERF_COLOR_GREEN; | |
563 | ||
564 | ret = color_fprintf(fp, color, " %6.2f%%", | |
1aa16738 PZ |
565 | (self->count * 100.0) / total_samples); |
566 | } else | |
567 | ret = fprintf(fp, "%12d ", self->count); | |
568 | ||
71dd8945 PZ |
569 | list_for_each_entry(se, &hist_entry__sort_list, list) { |
570 | fprintf(fp, " "); | |
1aa16738 | 571 | ret += se->print(fp, self); |
71dd8945 | 572 | } |
1aa16738 PZ |
573 | |
574 | ret += fprintf(fp, "\n"); | |
575 | ||
576 | return ret; | |
577 | } | |
578 | ||
579 | /* | |
580 | * collect histogram counts | |
581 | */ | |
582 | ||
e7fb08b1 PZ |
583 | static int |
584 | hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, | |
585 | struct symbol *sym, uint64_t ip, char level) | |
8fa66bdc | 586 | { |
e7fb08b1 PZ |
587 | struct rb_node **p = &hist.rb_node; |
588 | struct rb_node *parent = NULL; | |
589 | struct hist_entry *he; | |
590 | struct hist_entry entry = { | |
591 | .thread = thread, | |
592 | .map = map, | |
593 | .dso = dso, | |
594 | .sym = sym, | |
595 | .ip = ip, | |
596 | .level = level, | |
597 | .count = 1, | |
598 | }; | |
599 | int cmp; | |
600 | ||
601 | while (*p != NULL) { | |
602 | parent = *p; | |
603 | he = rb_entry(parent, struct hist_entry, rb_node); | |
604 | ||
605 | cmp = hist_entry__cmp(&entry, he); | |
606 | ||
607 | if (!cmp) { | |
608 | he->count++; | |
609 | return 0; | |
610 | } | |
611 | ||
612 | if (cmp < 0) | |
613 | p = &(*p)->rb_left; | |
614 | else | |
615 | p = &(*p)->rb_right; | |
ce7e4365 | 616 | } |
e7fb08b1 PZ |
617 | |
618 | he = malloc(sizeof(*he)); | |
619 | if (!he) | |
620 | return -ENOMEM; | |
621 | *he = entry; | |
622 | rb_link_node(&he->rb_node, parent, p); | |
623 | rb_insert_color(&he->rb_node, &hist); | |
624 | ||
625 | return 0; | |
8fa66bdc ACM |
626 | } |
627 | ||
8229289b PZ |
628 | static void hist_entry__free(struct hist_entry *he) |
629 | { | |
630 | free(he); | |
631 | } | |
632 | ||
633 | /* | |
634 | * collapse the histogram | |
635 | */ | |
636 | ||
637 | static struct rb_root collapse_hists; | |
638 | ||
639 | static void collapse__insert_entry(struct hist_entry *he) | |
640 | { | |
641 | struct rb_node **p = &collapse_hists.rb_node; | |
642 | struct rb_node *parent = NULL; | |
643 | struct hist_entry *iter; | |
644 | int64_t cmp; | |
645 | ||
646 | while (*p != NULL) { | |
647 | parent = *p; | |
648 | iter = rb_entry(parent, struct hist_entry, rb_node); | |
649 | ||
650 | cmp = hist_entry__collapse(iter, he); | |
651 | ||
652 | if (!cmp) { | |
653 | iter->count += he->count; | |
654 | hist_entry__free(he); | |
655 | return; | |
656 | } | |
657 | ||
658 | if (cmp < 0) | |
659 | p = &(*p)->rb_left; | |
660 | else | |
661 | p = &(*p)->rb_right; | |
662 | } | |
663 | ||
664 | rb_link_node(&he->rb_node, parent, p); | |
665 | rb_insert_color(&he->rb_node, &collapse_hists); | |
666 | } | |
667 | ||
668 | static void collapse__resort(void) | |
669 | { | |
670 | struct rb_node *next; | |
671 | struct hist_entry *n; | |
672 | ||
673 | if (!sort__need_collapse) | |
674 | return; | |
675 | ||
676 | next = rb_first(&hist); | |
677 | while (next) { | |
678 | n = rb_entry(next, struct hist_entry, rb_node); | |
679 | next = rb_next(&n->rb_node); | |
680 | ||
681 | rb_erase(&n->rb_node, &hist); | |
682 | collapse__insert_entry(n); | |
683 | } | |
684 | } | |
685 | ||
e7fb08b1 PZ |
686 | /* |
687 | * reverse the map, sort on count. | |
688 | */ | |
689 | ||
690 | static struct rb_root output_hists; | |
691 | ||
692 | static void output__insert_entry(struct hist_entry *he) | |
3a4b8cc7 | 693 | { |
e7fb08b1 | 694 | struct rb_node **p = &output_hists.rb_node; |
3a4b8cc7 | 695 | struct rb_node *parent = NULL; |
e7fb08b1 | 696 | struct hist_entry *iter; |
3a4b8cc7 ACM |
697 | |
698 | while (*p != NULL) { | |
699 | parent = *p; | |
e7fb08b1 | 700 | iter = rb_entry(parent, struct hist_entry, rb_node); |
3a4b8cc7 | 701 | |
e7fb08b1 | 702 | if (he->count > iter->count) |
3a4b8cc7 ACM |
703 | p = &(*p)->rb_left; |
704 | else | |
705 | p = &(*p)->rb_right; | |
706 | } | |
707 | ||
e7fb08b1 PZ |
708 | rb_link_node(&he->rb_node, parent, p); |
709 | rb_insert_color(&he->rb_node, &output_hists); | |
3a4b8cc7 ACM |
710 | } |
711 | ||
e7fb08b1 | 712 | static void output__resort(void) |
3a4b8cc7 | 713 | { |
8229289b | 714 | struct rb_node *next; |
e7fb08b1 | 715 | struct hist_entry *n; |
a4c43bea | 716 | struct rb_root *tree = &hist; |
3a4b8cc7 | 717 | |
8229289b | 718 | if (sort__need_collapse) |
a4c43bea ACM |
719 | tree = &collapse_hists; |
720 | ||
721 | next = rb_first(tree); | |
8229289b | 722 | |
e7fb08b1 PZ |
723 | while (next) { |
724 | n = rb_entry(next, struct hist_entry, rb_node); | |
725 | next = rb_next(&n->rb_node); | |
3a4b8cc7 | 726 | |
a4c43bea | 727 | rb_erase(&n->rb_node, tree); |
e7fb08b1 | 728 | output__insert_entry(n); |
3a4b8cc7 ACM |
729 | } |
730 | } | |
731 | ||
e7fb08b1 | 732 | static size_t output__fprintf(FILE *fp, uint64_t total_samples) |
3a4b8cc7 | 733 | { |
e7fb08b1 | 734 | struct hist_entry *pos; |
2d65537e | 735 | struct sort_entry *se; |
3a4b8cc7 ACM |
736 | struct rb_node *nd; |
737 | size_t ret = 0; | |
738 | ||
71dd8945 | 739 | fprintf(fp, "\n"); |
05ca061e IM |
740 | fprintf(fp, "#\n"); |
741 | fprintf(fp, "# (%Ld profiler events)\n", (__u64)total_samples); | |
ca8cdeef PZ |
742 | fprintf(fp, "#\n"); |
743 | ||
744 | fprintf(fp, "# Overhead"); | |
745 | list_for_each_entry(se, &hist_entry__sort_list, list) | |
71dd8945 | 746 | fprintf(fp, " %s", se->header); |
ca8cdeef PZ |
747 | fprintf(fp, "\n"); |
748 | ||
749 | fprintf(fp, "# ........"); | |
2d65537e | 750 | list_for_each_entry(se, &hist_entry__sort_list, list) { |
ca8cdeef PZ |
751 | int i; |
752 | ||
4593bba8 | 753 | fprintf(fp, " "); |
71dd8945 | 754 | for (i = 0; i < strlen(se->header); i++) |
ca8cdeef | 755 | fprintf(fp, "."); |
2d65537e | 756 | } |
ca8cdeef PZ |
757 | fprintf(fp, "\n"); |
758 | ||
759 | fprintf(fp, "#\n"); | |
2d65537e | 760 | |
e7fb08b1 PZ |
761 | for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) { |
762 | pos = rb_entry(nd, struct hist_entry, rb_node); | |
763 | ret += hist_entry__fprintf(fp, pos, total_samples); | |
3a4b8cc7 ACM |
764 | } |
765 | ||
bd74137e IM |
766 | if (!strcmp(sort_order, default_sort_order)) { |
767 | fprintf(fp, "#\n"); | |
71dd8945 | 768 | fprintf(fp, "# (For more details, try: perf report --sort comm,dso,symbol)\n"); |
bd74137e IM |
769 | fprintf(fp, "#\n"); |
770 | } | |
71dd8945 | 771 | fprintf(fp, "\n"); |
bd74137e | 772 | |
3a4b8cc7 ACM |
773 | return ret; |
774 | } | |
775 | ||
436224a6 PZ |
776 | static void register_idle_thread(void) |
777 | { | |
778 | struct thread *thread = threads__findnew(0); | |
779 | ||
780 | if (thread == NULL || | |
781 | thread__set_comm(thread, "[idle]")) { | |
782 | fprintf(stderr, "problem inserting idle task.\n"); | |
783 | exit(-1); | |
784 | } | |
785 | } | |
786 | ||
d80d338d | 787 | static unsigned long total = 0, total_mmap = 0, total_comm = 0, total_unknown = 0; |
e7fb08b1 | 788 | |
d80d338d | 789 | static int |
75051724 IM |
790 | process_overflow_event(event_t *event, unsigned long offset, unsigned long head) |
791 | { | |
792 | char level; | |
793 | int show = 0; | |
794 | struct dso *dso = NULL; | |
795 | struct thread *thread = threads__findnew(event->ip.pid); | |
796 | uint64_t ip = event->ip.ip; | |
797 | struct map *map = NULL; | |
798 | ||
799 | dprintf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n", | |
800 | (void *)(offset + head), | |
801 | (void *)(long)(event->header.size), | |
802 | event->header.misc, | |
803 | event->ip.pid, | |
804 | (void *)(long)ip); | |
805 | ||
806 | dprintf(" ... thread: %s:%d\n", thread->comm, thread->pid); | |
807 | ||
808 | if (thread == NULL) { | |
809 | fprintf(stderr, "problem processing %d event, skipping it.\n", | |
810 | event->header.type); | |
811 | return -1; | |
812 | } | |
e7fb08b1 | 813 | |
75051724 IM |
814 | if (event->header.misc & PERF_EVENT_MISC_KERNEL) { |
815 | show = SHOW_KERNEL; | |
816 | level = 'k'; | |
e7fb08b1 | 817 | |
75051724 | 818 | dso = kernel_dso; |
ed966aac | 819 | |
75051724 | 820 | dprintf(" ...... dso: %s\n", dso->name); |
16f762a2 | 821 | |
75051724 | 822 | } else if (event->header.misc & PERF_EVENT_MISC_USER) { |
16f762a2 | 823 | |
75051724 IM |
824 | show = SHOW_USER; |
825 | level = '.'; | |
e7fb08b1 | 826 | |
75051724 IM |
827 | map = thread__find_map(thread, ip); |
828 | if (map != NULL) { | |
829 | dso = map->dso; | |
830 | ip -= map->start + map->pgoff; | |
8fa66bdc | 831 | } else { |
75051724 IM |
832 | /* |
833 | * If this is outside of all known maps, | |
834 | * and is a negative address, try to look it | |
835 | * up in the kernel dso, as it might be a | |
836 | * vsyscall (which executes in user-mode): | |
837 | */ | |
838 | if ((long long)ip < 0) | |
839 | dso = kernel_dso; | |
8fa66bdc | 840 | } |
75051724 IM |
841 | dprintf(" ...... dso: %s\n", dso ? dso->name : "<not found>"); |
842 | ||
843 | } else { | |
844 | show = SHOW_HV; | |
845 | level = 'H'; | |
846 | dprintf(" ...... dso: [hypervisor]\n"); | |
847 | } | |
8fa66bdc | 848 | |
75051724 IM |
849 | if (show & show_mask) { |
850 | struct symbol *sym = dso__find_symbol(dso, ip); | |
8fa66bdc | 851 | |
75051724 IM |
852 | if (hist_entry__add(thread, map, dso, sym, ip, level)) { |
853 | fprintf(stderr, | |
55717314 | 854 | "problem incrementing symbol count, skipping event\n"); |
d80d338d | 855 | return -1; |
ce7e4365 | 856 | } |
8fa66bdc | 857 | } |
75051724 | 858 | total++; |
8fa66bdc | 859 | |
75051724 IM |
860 | return 0; |
861 | } | |
3502973d | 862 | |
75051724 IM |
863 | static int |
864 | process_mmap_event(event_t *event, unsigned long offset, unsigned long head) | |
865 | { | |
866 | struct thread *thread = threads__findnew(event->mmap.pid); | |
867 | struct map *map = map__new(&event->mmap); | |
868 | ||
869 | dprintf("%p [%p]: PERF_EVENT_MMAP: [%p(%p) @ %p]: %s\n", | |
870 | (void *)(offset + head), | |
871 | (void *)(long)(event->header.size), | |
872 | (void *)(long)event->mmap.start, | |
873 | (void *)(long)event->mmap.len, | |
874 | (void *)(long)event->mmap.pgoff, | |
875 | event->mmap.filename); | |
876 | ||
877 | if (thread == NULL || map == NULL) { | |
878 | dprintf("problem processing PERF_EVENT_MMAP, skipping event.\n"); | |
df97992c | 879 | return 0; |
75051724 IM |
880 | } |
881 | ||
882 | thread__insert_map(thread, map); | |
883 | total_mmap++; | |
884 | ||
885 | return 0; | |
886 | } | |
887 | ||
888 | static int | |
889 | process_comm_event(event_t *event, unsigned long offset, unsigned long head) | |
890 | { | |
891 | struct thread *thread = threads__findnew(event->comm.pid); | |
892 | ||
893 | dprintf("%p [%p]: PERF_EVENT_COMM: %s:%d\n", | |
894 | (void *)(offset + head), | |
895 | (void *)(long)(event->header.size), | |
896 | event->comm.comm, event->comm.pid); | |
897 | ||
898 | if (thread == NULL || | |
899 | thread__set_comm(thread, event->comm.comm)) { | |
900 | dprintf("problem processing PERF_EVENT_COMM, skipping event.\n"); | |
901 | return -1; | |
8fa66bdc | 902 | } |
75051724 IM |
903 | total_comm++; |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
908 | static int | |
909 | process_event(event_t *event, unsigned long offset, unsigned long head) | |
910 | { | |
911 | if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) | |
912 | return process_overflow_event(event, offset, head); | |
913 | ||
914 | switch (event->header.type) { | |
915 | case PERF_EVENT_MMAP: | |
916 | return process_mmap_event(event, offset, head); | |
917 | ||
918 | case PERF_EVENT_COMM: | |
919 | return process_comm_event(event, offset, head); | |
920 | ||
d11444df IM |
921 | /* |
922 | * We dont process them right now but they are fine: | |
923 | */ | |
924 | case PERF_EVENT_MUNMAP: | |
925 | case PERF_EVENT_PERIOD: | |
926 | case PERF_EVENT_THROTTLE: | |
927 | case PERF_EVENT_UNTHROTTLE: | |
928 | return 0; | |
929 | ||
d80d338d IM |
930 | default: |
931 | return -1; | |
932 | } | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | static int __cmd_report(void) | |
938 | { | |
75051724 | 939 | int ret, rc = EXIT_FAILURE; |
d80d338d IM |
940 | unsigned long offset = 0; |
941 | unsigned long head = 0; | |
942 | struct stat stat; | |
d80d338d | 943 | event_t *event; |
d80d338d | 944 | uint32_t size; |
75051724 | 945 | char *buf; |
d80d338d IM |
946 | |
947 | register_idle_thread(); | |
948 | ||
949 | input = open(input_name, O_RDONLY); | |
950 | if (input < 0) { | |
951 | perror("failed to open file"); | |
952 | exit(-1); | |
953 | } | |
954 | ||
955 | ret = fstat(input, &stat); | |
956 | if (ret < 0) { | |
957 | perror("failed to stat file"); | |
958 | exit(-1); | |
959 | } | |
960 | ||
961 | if (!stat.st_size) { | |
962 | fprintf(stderr, "zero-sized file, nothing to do!\n"); | |
963 | exit(0); | |
964 | } | |
965 | ||
966 | if (load_kernel() < 0) { | |
967 | perror("failed to load kernel symbols"); | |
968 | return EXIT_FAILURE; | |
969 | } | |
970 | ||
971 | if (!full_paths) { | |
972 | if (getcwd(__cwd, sizeof(__cwd)) == NULL) { | |
973 | perror("failed to get the current directory"); | |
974 | return EXIT_FAILURE; | |
975 | } | |
976 | cwdlen = strlen(cwd); | |
977 | } else { | |
978 | cwd = NULL; | |
979 | cwdlen = 0; | |
980 | } | |
981 | remap: | |
982 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, | |
983 | MAP_SHARED, input, offset); | |
984 | if (buf == MAP_FAILED) { | |
985 | perror("failed to mmap file"); | |
986 | exit(-1); | |
987 | } | |
988 | ||
989 | more: | |
990 | event = (event_t *)(buf + head); | |
991 | ||
992 | size = event->header.size; | |
993 | if (!size) | |
994 | size = 8; | |
995 | ||
996 | if (head + event->header.size >= page_size * mmap_window) { | |
997 | unsigned long shift = page_size * (head / page_size); | |
998 | int ret; | |
999 | ||
1000 | ret = munmap(buf, page_size * mmap_window); | |
1001 | assert(ret == 0); | |
1002 | ||
1003 | offset += shift; | |
1004 | head -= shift; | |
1005 | goto remap; | |
1006 | } | |
1007 | ||
1008 | size = event->header.size; | |
1009 | ||
1010 | if (!size || process_event(event, offset, head) < 0) { | |
1011 | ||
3502973d IM |
1012 | dprintf("%p [%p]: skipping unknown header type: %d\n", |
1013 | (void *)(offset + head), | |
1014 | (void *)(long)(event->header.size), | |
1015 | event->header.type); | |
b7a16eac | 1016 | |
3e706114 | 1017 | total_unknown++; |
6142f9ec PZ |
1018 | |
1019 | /* | |
1020 | * assume we lost track of the stream, check alignment, and | |
1021 | * increment a single u64 in the hope to catch on again 'soon'. | |
1022 | */ | |
1023 | ||
1024 | if (unlikely(head & 7)) | |
1025 | head &= ~7ULL; | |
1026 | ||
1027 | size = 8; | |
97b07b69 | 1028 | } |
8fa66bdc | 1029 | |
6142f9ec | 1030 | head += size; |
f49515b1 | 1031 | |
8fa66bdc ACM |
1032 | if (offset + head < stat.st_size) |
1033 | goto more; | |
1034 | ||
1035 | rc = EXIT_SUCCESS; | |
8fa66bdc | 1036 | close(input); |
97b07b69 | 1037 | |
3502973d IM |
1038 | dprintf(" IP events: %10ld\n", total); |
1039 | dprintf(" mmap events: %10ld\n", total_mmap); | |
1040 | dprintf(" comm events: %10ld\n", total_comm); | |
1041 | dprintf(" unknown events: %10ld\n", total_unknown); | |
97b07b69 | 1042 | |
3502973d | 1043 | if (dump_trace) |
97b07b69 | 1044 | return 0; |
97b07b69 | 1045 | |
e7fb08b1 | 1046 | if (verbose >= 2) |
16f762a2 | 1047 | dsos__fprintf(stdout); |
16f762a2 | 1048 | |
8229289b | 1049 | collapse__resort(); |
e7fb08b1 PZ |
1050 | output__resort(); |
1051 | output__fprintf(stdout, total); | |
8fa66bdc | 1052 | |
8fa66bdc ACM |
1053 | return rc; |
1054 | } | |
1055 | ||
53cb8bc2 IM |
1056 | static const char * const report_usage[] = { |
1057 | "perf report [<options>] <command>", | |
1058 | NULL | |
1059 | }; | |
1060 | ||
1061 | static const struct option options[] = { | |
1062 | OPT_STRING('i', "input", &input_name, "file", | |
1063 | "input file name"), | |
815e777f ACM |
1064 | OPT_BOOLEAN('v', "verbose", &verbose, |
1065 | "be more verbose (show symbol address, etc)"), | |
97b07b69 IM |
1066 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
1067 | "dump raw trace in ASCII"), | |
450aaa2b | 1068 | OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"), |
63299f05 IM |
1069 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1070 | "sort by key(s): pid, comm, dso, symbol. Default: pid,symbol"), | |
b78c07d4 ACM |
1071 | OPT_BOOLEAN('P', "full-paths", &full_paths, |
1072 | "Don't shorten the pathnames taking into account the cwd"), | |
53cb8bc2 IM |
1073 | OPT_END() |
1074 | }; | |
1075 | ||
5352f35d IM |
1076 | static void setup_sorting(void) |
1077 | { | |
1078 | char *tmp, *tok, *str = strdup(sort_order); | |
1079 | ||
1080 | for (tok = strtok_r(str, ", ", &tmp); | |
1081 | tok; tok = strtok_r(NULL, ", ", &tmp)) { | |
1082 | if (sort_dimension__add(tok) < 0) { | |
1083 | error("Unknown --sort key: `%s'", tok); | |
1084 | usage_with_options(report_usage, options); | |
1085 | } | |
1086 | } | |
1087 | ||
1088 | free(str); | |
1089 | } | |
1090 | ||
53cb8bc2 IM |
1091 | int cmd_report(int argc, const char **argv, const char *prefix) |
1092 | { | |
a2928c42 | 1093 | symbol__init(); |
53cb8bc2 IM |
1094 | |
1095 | page_size = getpagesize(); | |
1096 | ||
1097 | parse_options(argc, argv, options, report_usage, 0); | |
1098 | ||
1aa16738 PZ |
1099 | setup_sorting(); |
1100 | ||
a930d2c0 IM |
1101 | setup_pager(); |
1102 | ||
53cb8bc2 IM |
1103 | return __cmd_report(); |
1104 | } |