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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" |
e74328d3 | 27 | #include "util/process_events.h" |
8035e428 | 28 | |
8035e428 | 29 | static char const *input_name = "perf.data"; |
8035e428 | 30 | |
fa6963b2 | 31 | static int force; |
8035e428 | 32 | static int input; |
8035e428 | 33 | |
42976487 MG |
34 | static int full_paths; |
35 | ||
301406b9 FW |
36 | static int print_line; |
37 | ||
8035e428 IM |
38 | static unsigned long page_size; |
39 | static unsigned long mmap_window = 32; | |
40 | ||
e4204992 ACM |
41 | struct sym_hist { |
42 | u64 sum; | |
43 | u64 ip[0]; | |
44 | }; | |
45 | ||
301406b9 | 46 | struct sym_ext { |
971738f3 | 47 | struct rb_node node; |
301406b9 FW |
48 | double percent; |
49 | char *path; | |
50 | }; | |
51 | ||
e4204992 ACM |
52 | struct sym_priv { |
53 | struct sym_hist *hist; | |
54 | struct sym_ext *ext; | |
55 | }; | |
56 | ||
b32d133a ACM |
57 | static struct symbol_conf symbol_conf = { |
58 | .priv_size = sizeof(struct sym_priv), | |
59 | .try_vmlinux_path = true, | |
60 | }; | |
61 | ||
e4204992 ACM |
62 | static const char *sym_hist_filter; |
63 | ||
00a192b3 | 64 | static int symbol_filter(struct map *map __used, struct symbol *sym) |
e4204992 | 65 | { |
8f0b0373 ACM |
66 | if (sym_hist_filter == NULL || |
67 | strcmp(sym->name, sym_hist_filter) == 0) { | |
00a192b3 | 68 | struct sym_priv *priv = symbol__priv(sym); |
e4204992 ACM |
69 | const int size = (sizeof(*priv->hist) + |
70 | (sym->end - sym->start) * sizeof(u64)); | |
71 | ||
72 | priv->hist = malloc(size); | |
73 | if (priv->hist) | |
74 | memset(priv->hist, 0, size); | |
75 | return 0; | |
76 | } | |
77 | /* | |
78 | * FIXME: We should really filter it out, as we don't want to go thru symbols | |
79 | * we're not interested, and if a DSO ends up with no symbols, delete it too, | |
80 | * but right now the kernel loading routines in symbol.c bail out if no symbols | |
81 | * are found, fix it later. | |
82 | */ | |
83 | return 0; | |
84 | } | |
8035e428 | 85 | |
0b73da3f IM |
86 | /* |
87 | * collect histogram counts | |
88 | */ | |
9cffa8d5 | 89 | static void hist_hit(struct hist_entry *he, u64 ip) |
8035e428 | 90 | { |
0b73da3f IM |
91 | unsigned int sym_size, offset; |
92 | struct symbol *sym = he->sym; | |
e4204992 ACM |
93 | struct sym_priv *priv; |
94 | struct sym_hist *h; | |
8035e428 | 95 | |
0b73da3f | 96 | he->count++; |
8035e428 | 97 | |
e4204992 ACM |
98 | if (!sym || !he->map) |
99 | return; | |
100 | ||
00a192b3 | 101 | priv = symbol__priv(sym); |
e4204992 | 102 | if (!priv->hist) |
0b73da3f | 103 | return; |
8035e428 | 104 | |
0b73da3f IM |
105 | sym_size = sym->end - sym->start; |
106 | offset = ip - sym->start; | |
8035e428 | 107 | |
ed52ce2e ACM |
108 | if (verbose) |
109 | fprintf(stderr, "%s: ip=%Lx\n", __func__, | |
110 | he->map->unmap_ip(he->map, ip)); | |
111 | ||
0b73da3f IM |
112 | if (offset >= sym_size) |
113 | return; | |
8035e428 | 114 | |
e4204992 ACM |
115 | h = priv->hist; |
116 | h->sum++; | |
117 | h->ip[offset]++; | |
8035e428 | 118 | |
0b73da3f IM |
119 | if (verbose >= 3) |
120 | printf("%p %s: count++ [ip: %p, %08Lx] => %Ld\n", | |
7d37a0cb | 121 | (void *)(unsigned long)he->sym->start, |
0b73da3f | 122 | he->sym->name, |
7d37a0cb | 123 | (void *)(unsigned long)ip, ip - he->sym->start, |
e4204992 | 124 | h->ip[offset]); |
8035e428 IM |
125 | } |
126 | ||
9735abf1 ACM |
127 | static int hist_entry__add(struct thread *thread, struct map *map, |
128 | struct symbol *sym, u64 ip, u64 count, char level) | |
8035e428 | 129 | { |
9735abf1 ACM |
130 | bool hit; |
131 | struct hist_entry *he = __hist_entry__add(thread, map, sym, NULL, ip, | |
132 | count, level, &hit); | |
133 | if (he == NULL) | |
8035e428 | 134 | return -ENOMEM; |
ed52ce2e | 135 | hist_hit(he, ip); |
8035e428 IM |
136 | return 0; |
137 | } | |
138 | ||
8035e428 | 139 | static int |
e6e18ec7 | 140 | process_sample_event(event_t *event, unsigned long offset, unsigned long head) |
8035e428 IM |
141 | { |
142 | char level; | |
9cffa8d5 | 143 | u64 ip = event->ip.ip; |
8035e428 | 144 | struct map *map = NULL; |
439d473b | 145 | struct symbol *sym = NULL; |
d5b889f2 | 146 | struct thread *thread = threads__findnew(event->ip.pid); |
6baa0a5a | 147 | |
2cec19d9 | 148 | dump_printf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n", |
8035e428 IM |
149 | (void *)(offset + head), |
150 | (void *)(long)(event->header.size), | |
151 | event->header.misc, | |
152 | event->ip.pid, | |
153 | (void *)(long)ip); | |
154 | ||
8035e428 IM |
155 | if (thread == NULL) { |
156 | fprintf(stderr, "problem processing %d event, skipping it.\n", | |
157 | event->header.type); | |
158 | return -1; | |
159 | } | |
160 | ||
f39cdf25 JL |
161 | dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
162 | ||
cdd6c482 | 163 | if (event->header.misc & PERF_RECORD_MISC_KERNEL) { |
8035e428 | 164 | level = 'k'; |
fcf1203a | 165 | sym = kernel_maps__find_function(ip, &map, symbol_filter); |
439d473b ACM |
166 | dump_printf(" ...... dso: %s\n", |
167 | map ? map->dso->long_name : "<not found>"); | |
cdd6c482 | 168 | } else if (event->header.misc & PERF_RECORD_MISC_USER) { |
8035e428 | 169 | level = '.'; |
8035e428 IM |
170 | map = thread__find_map(thread, ip); |
171 | if (map != NULL) { | |
172 | ip = map->map_ip(map, ip); | |
fcf1203a | 173 | sym = map__find_function(map, ip, symbol_filter); |
8035e428 IM |
174 | } else { |
175 | /* | |
176 | * If this is outside of all known maps, | |
177 | * and is a negative address, try to look it | |
178 | * up in the kernel dso, as it might be a | |
439d473b ACM |
179 | * vsyscall or vdso (which executes in user-mode). |
180 | * | |
181 | * XXX This is nasty, we should have a symbol list in | |
182 | * the "[vdso]" dso, but for now lets use the old | |
183 | * trick of looking in the whole kernel symbol list. | |
8035e428 | 184 | */ |
605ca4ba ACM |
185 | if ((long long)ip < 0) |
186 | sym = kernel_maps__find_function(ip, &map, | |
187 | symbol_filter); | |
8035e428 | 188 | } |
439d473b ACM |
189 | dump_printf(" ...... dso: %s\n", |
190 | map ? map->dso->long_name : "<not found>"); | |
8035e428 | 191 | } else { |
8035e428 | 192 | level = 'H'; |
2cec19d9 | 193 | dump_printf(" ...... dso: [hypervisor]\n"); |
8035e428 IM |
194 | } |
195 | ||
ec218fc4 ACM |
196 | if (hist_entry__add(thread, map, sym, ip, 1, level)) { |
197 | fprintf(stderr, "problem incrementing symbol count, " | |
198 | "skipping event\n"); | |
199 | return -1; | |
8035e428 IM |
200 | } |
201 | total++; | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
8035e428 IM |
206 | static int |
207 | process_comm_event(event_t *event, unsigned long offset, unsigned long head) | |
208 | { | |
d5b889f2 | 209 | struct thread *thread = threads__findnew(event->comm.pid); |
8035e428 | 210 | |
cdd6c482 | 211 | dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n", |
8035e428 IM |
212 | (void *)(offset + head), |
213 | (void *)(long)(event->header.size), | |
214 | event->comm.comm, event->comm.pid); | |
215 | ||
216 | if (thread == NULL || | |
217 | thread__set_comm(thread, event->comm.comm)) { | |
cdd6c482 | 218 | dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); |
8035e428 IM |
219 | return -1; |
220 | } | |
221 | total_comm++; | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
8035e428 IM |
226 | static int |
227 | process_event(event_t *event, unsigned long offset, unsigned long head) | |
228 | { | |
8035e428 | 229 | switch (event->header.type) { |
cdd6c482 | 230 | case PERF_RECORD_SAMPLE: |
e6e18ec7 PZ |
231 | return process_sample_event(event, offset, head); |
232 | ||
cdd6c482 | 233 | case PERF_RECORD_MMAP: |
8035e428 IM |
234 | return process_mmap_event(event, offset, head); |
235 | ||
cdd6c482 | 236 | case PERF_RECORD_COMM: |
8035e428 IM |
237 | return process_comm_event(event, offset, head); |
238 | ||
cdd6c482 | 239 | case PERF_RECORD_FORK: |
e74328d3 | 240 | return process_task_event(event, offset, head); |
8035e428 IM |
241 | /* |
242 | * We dont process them right now but they are fine: | |
243 | */ | |
244 | ||
cdd6c482 IM |
245 | case PERF_RECORD_THROTTLE: |
246 | case PERF_RECORD_UNTHROTTLE: | |
8035e428 IM |
247 | return 0; |
248 | ||
249 | default: | |
250 | return -1; | |
251 | } | |
252 | ||
253 | return 0; | |
254 | } | |
255 | ||
ed52ce2e | 256 | static int parse_line(FILE *file, struct hist_entry *he, u64 len) |
0b73da3f | 257 | { |
ed52ce2e | 258 | struct symbol *sym = he->sym; |
0b73da3f | 259 | char *line = NULL, *tmp, *tmp2; |
301406b9 FW |
260 | static const char *prev_line; |
261 | static const char *prev_color; | |
0b73da3f IM |
262 | unsigned int offset; |
263 | size_t line_len; | |
ed52ce2e | 264 | u64 start; |
f37a291c | 265 | s64 line_ip; |
0b73da3f IM |
266 | int ret; |
267 | char *c; | |
268 | ||
269 | if (getline(&line, &line_len, file) < 0) | |
270 | return -1; | |
271 | if (!line) | |
272 | return -1; | |
273 | ||
274 | c = strchr(line, '\n'); | |
275 | if (c) | |
276 | *c = 0; | |
277 | ||
278 | line_ip = -1; | |
279 | offset = 0; | |
280 | ret = -2; | |
281 | ||
282 | /* | |
283 | * Strip leading spaces: | |
284 | */ | |
285 | tmp = line; | |
286 | while (*tmp) { | |
287 | if (*tmp != ' ') | |
288 | break; | |
289 | tmp++; | |
290 | } | |
291 | ||
292 | if (*tmp) { | |
293 | /* | |
294 | * Parse hexa addresses followed by ':' | |
295 | */ | |
296 | line_ip = strtoull(tmp, &tmp2, 16); | |
297 | if (*tmp2 != ':') | |
298 | line_ip = -1; | |
299 | } | |
300 | ||
ed52ce2e ACM |
301 | start = he->map->unmap_ip(he->map, sym->start); |
302 | ||
0b73da3f | 303 | if (line_ip != -1) { |
301406b9 | 304 | const char *path = NULL; |
0b73da3f IM |
305 | unsigned int hits = 0; |
306 | double percent = 0.0; | |
83a0944f | 307 | const char *color; |
00a192b3 | 308 | struct sym_priv *priv = symbol__priv(sym); |
e4204992 ACM |
309 | struct sym_ext *sym_ext = priv->ext; |
310 | struct sym_hist *h = priv->hist; | |
0b73da3f | 311 | |
ed52ce2e | 312 | offset = line_ip - start; |
0b73da3f | 313 | if (offset < len) |
e4204992 | 314 | hits = h->ip[offset]; |
0b73da3f | 315 | |
c17c2db1 | 316 | if (offset < len && sym_ext) { |
301406b9 FW |
317 | path = sym_ext[offset].path; |
318 | percent = sym_ext[offset].percent; | |
e4204992 ACM |
319 | } else if (h->sum) |
320 | percent = 100.0 * hits / h->sum; | |
0b73da3f | 321 | |
1e11fd82 | 322 | color = get_percent_color(percent); |
0b73da3f | 323 | |
301406b9 FW |
324 | /* |
325 | * Also color the filename and line if needed, with | |
326 | * the same color than the percentage. Don't print it | |
327 | * twice for close colored ip with the same filename:line | |
328 | */ | |
329 | if (path) { | |
330 | if (!prev_line || strcmp(prev_line, path) | |
331 | || color != prev_color) { | |
332 | color_fprintf(stdout, color, " %s", path); | |
333 | prev_line = path; | |
334 | prev_color = color; | |
335 | } | |
336 | } | |
337 | ||
0b73da3f IM |
338 | color_fprintf(stdout, color, " %7.2f", percent); |
339 | printf(" : "); | |
340 | color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", line); | |
341 | } else { | |
342 | if (!*line) | |
343 | printf(" :\n"); | |
344 | else | |
345 | printf(" : %s\n", line); | |
346 | } | |
347 | ||
348 | return 0; | |
349 | } | |
350 | ||
971738f3 FW |
351 | static struct rb_root root_sym_ext; |
352 | ||
353 | static void insert_source_line(struct sym_ext *sym_ext) | |
354 | { | |
355 | struct sym_ext *iter; | |
356 | struct rb_node **p = &root_sym_ext.rb_node; | |
357 | struct rb_node *parent = NULL; | |
358 | ||
359 | while (*p != NULL) { | |
360 | parent = *p; | |
361 | iter = rb_entry(parent, struct sym_ext, node); | |
362 | ||
363 | if (sym_ext->percent > iter->percent) | |
364 | p = &(*p)->rb_left; | |
365 | else | |
366 | p = &(*p)->rb_right; | |
367 | } | |
368 | ||
369 | rb_link_node(&sym_ext->node, parent, p); | |
370 | rb_insert_color(&sym_ext->node, &root_sym_ext); | |
371 | } | |
372 | ||
e4204992 | 373 | static void free_source_line(struct hist_entry *he, int len) |
301406b9 | 374 | { |
00a192b3 | 375 | struct sym_priv *priv = symbol__priv(he->sym); |
e4204992 | 376 | struct sym_ext *sym_ext = priv->ext; |
301406b9 FW |
377 | int i; |
378 | ||
379 | if (!sym_ext) | |
380 | return; | |
381 | ||
382 | for (i = 0; i < len; i++) | |
383 | free(sym_ext[i].path); | |
384 | free(sym_ext); | |
385 | ||
e4204992 | 386 | priv->ext = NULL; |
971738f3 | 387 | root_sym_ext = RB_ROOT; |
301406b9 FW |
388 | } |
389 | ||
390 | /* Get the filename:line for the colored entries */ | |
c17c2db1 | 391 | static void |
ed52ce2e | 392 | get_source_line(struct hist_entry *he, int len, const char *filename) |
301406b9 | 393 | { |
ed52ce2e ACM |
394 | struct symbol *sym = he->sym; |
395 | u64 start; | |
301406b9 FW |
396 | int i; |
397 | char cmd[PATH_MAX * 2]; | |
398 | struct sym_ext *sym_ext; | |
00a192b3 | 399 | struct sym_priv *priv = symbol__priv(sym); |
e4204992 | 400 | struct sym_hist *h = priv->hist; |
301406b9 | 401 | |
e4204992 | 402 | if (!h->sum) |
301406b9 FW |
403 | return; |
404 | ||
e4204992 ACM |
405 | sym_ext = priv->ext = calloc(len, sizeof(struct sym_ext)); |
406 | if (!priv->ext) | |
301406b9 FW |
407 | return; |
408 | ||
ed52ce2e | 409 | start = he->map->unmap_ip(he->map, sym->start); |
301406b9 FW |
410 | |
411 | for (i = 0; i < len; i++) { | |
412 | char *path = NULL; | |
413 | size_t line_len; | |
9cffa8d5 | 414 | u64 offset; |
301406b9 FW |
415 | FILE *fp; |
416 | ||
e4204992 | 417 | sym_ext[i].percent = 100.0 * h->ip[i] / h->sum; |
301406b9 FW |
418 | if (sym_ext[i].percent <= 0.5) |
419 | continue; | |
420 | ||
ed52ce2e | 421 | offset = start + i; |
c17c2db1 | 422 | sprintf(cmd, "addr2line -e %s %016llx", filename, offset); |
301406b9 FW |
423 | fp = popen(cmd, "r"); |
424 | if (!fp) | |
425 | continue; | |
426 | ||
427 | if (getline(&path, &line_len, fp) < 0 || !line_len) | |
428 | goto next; | |
429 | ||
c17c2db1 | 430 | sym_ext[i].path = malloc(sizeof(char) * line_len + 1); |
301406b9 FW |
431 | if (!sym_ext[i].path) |
432 | goto next; | |
433 | ||
434 | strcpy(sym_ext[i].path, path); | |
971738f3 | 435 | insert_source_line(&sym_ext[i]); |
301406b9 FW |
436 | |
437 | next: | |
438 | pclose(fp); | |
439 | } | |
440 | } | |
441 | ||
83a0944f | 442 | static void print_summary(const char *filename) |
971738f3 FW |
443 | { |
444 | struct sym_ext *sym_ext; | |
445 | struct rb_node *node; | |
446 | ||
447 | printf("\nSorted summary for file %s\n", filename); | |
448 | printf("----------------------------------------------\n\n"); | |
449 | ||
450 | if (RB_EMPTY_ROOT(&root_sym_ext)) { | |
451 | printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); | |
452 | return; | |
453 | } | |
454 | ||
455 | node = rb_first(&root_sym_ext); | |
456 | while (node) { | |
457 | double percent; | |
83a0944f | 458 | const char *color; |
971738f3 FW |
459 | char *path; |
460 | ||
461 | sym_ext = rb_entry(node, struct sym_ext, node); | |
462 | percent = sym_ext->percent; | |
1e11fd82 | 463 | color = get_percent_color(percent); |
971738f3 FW |
464 | path = sym_ext->path; |
465 | ||
466 | color_fprintf(stdout, color, " %7.2f %s", percent, path); | |
467 | node = rb_next(node); | |
468 | } | |
469 | } | |
470 | ||
ed52ce2e | 471 | static void annotate_sym(struct hist_entry *he) |
0b73da3f | 472 | { |
ed52ce2e ACM |
473 | struct map *map = he->map; |
474 | struct dso *dso = map->dso; | |
475 | struct symbol *sym = he->sym; | |
439d473b ACM |
476 | const char *filename = dso->long_name, *d_filename; |
477 | u64 len; | |
0b73da3f IM |
478 | char command[PATH_MAX*2]; |
479 | FILE *file; | |
480 | ||
481 | if (!filename) | |
482 | return; | |
439d473b | 483 | |
ed52ce2e ACM |
484 | if (verbose) |
485 | fprintf(stderr, "%s: filename=%s, sym=%s, start=%Lx, end=%Lx\n", | |
486 | __func__, filename, sym->name, | |
487 | map->unmap_ip(map, sym->start), | |
488 | map->unmap_ip(map, sym->end)); | |
489 | ||
42976487 MG |
490 | if (full_paths) |
491 | d_filename = filename; | |
492 | else | |
493 | d_filename = basename(filename); | |
0b73da3f | 494 | |
0b73da3f IM |
495 | len = sym->end - sym->start; |
496 | ||
971738f3 | 497 | if (print_line) { |
ed52ce2e | 498 | get_source_line(he, len, filename); |
971738f3 FW |
499 | print_summary(filename); |
500 | } | |
501 | ||
502 | printf("\n\n------------------------------------------------\n"); | |
42976487 | 503 | printf(" Percent | Source code & Disassembly of %s\n", d_filename); |
971738f3 FW |
504 | printf("------------------------------------------------\n"); |
505 | ||
506 | if (verbose >= 2) | |
439d473b ACM |
507 | printf("annotating [%p] %30s : [%p] %30s\n", |
508 | dso, dso->long_name, sym, sym->name); | |
301406b9 | 509 | |
42976487 | 510 | sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s|grep -v %s", |
ed52ce2e ACM |
511 | map->unmap_ip(map, sym->start), map->unmap_ip(map, sym->end), |
512 | filename, filename); | |
0b73da3f IM |
513 | |
514 | if (verbose >= 3) | |
515 | printf("doing: %s\n", command); | |
516 | ||
517 | file = popen(command, "r"); | |
518 | if (!file) | |
519 | return; | |
520 | ||
521 | while (!feof(file)) { | |
ed52ce2e | 522 | if (parse_line(file, he, len) < 0) |
0b73da3f IM |
523 | break; |
524 | } | |
525 | ||
526 | pclose(file); | |
971738f3 | 527 | if (print_line) |
e4204992 | 528 | free_source_line(he, len); |
0b73da3f IM |
529 | } |
530 | ||
531 | static void find_annotations(void) | |
532 | { | |
533 | struct rb_node *nd; | |
0b73da3f | 534 | |
ed52ce2e ACM |
535 | for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) { |
536 | struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); | |
e4204992 | 537 | struct sym_priv *priv; |
0b73da3f | 538 | |
e4204992 ACM |
539 | if (he->sym == NULL) |
540 | continue; | |
0b73da3f | 541 | |
00a192b3 | 542 | priv = symbol__priv(he->sym); |
e4204992 ACM |
543 | if (priv->hist == NULL) |
544 | continue; | |
545 | ||
546 | annotate_sym(he); | |
e4204992 ACM |
547 | /* |
548 | * Since we have a hist_entry per IP for the same symbol, free | |
549 | * he->sym->hist to signal we already processed this symbol. | |
550 | */ | |
551 | free(priv->hist); | |
552 | priv->hist = NULL; | |
0b73da3f | 553 | } |
0b73da3f IM |
554 | } |
555 | ||
8035e428 IM |
556 | static int __cmd_annotate(void) |
557 | { | |
558 | int ret, rc = EXIT_FAILURE; | |
559 | unsigned long offset = 0; | |
560 | unsigned long head = 0; | |
83a0944f | 561 | struct stat input_stat; |
8035e428 IM |
562 | event_t *event; |
563 | uint32_t size; | |
564 | char *buf; | |
565 | ||
d5b889f2 | 566 | register_idle_thread(); |
8035e428 IM |
567 | |
568 | input = open(input_name, O_RDONLY); | |
569 | if (input < 0) { | |
570 | perror("failed to open file"); | |
571 | exit(-1); | |
572 | } | |
573 | ||
83a0944f | 574 | ret = fstat(input, &input_stat); |
8035e428 IM |
575 | if (ret < 0) { |
576 | perror("failed to stat file"); | |
577 | exit(-1); | |
578 | } | |
579 | ||
119e7a22 PH |
580 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { |
581 | fprintf(stderr, "file: %s not owned by current user or root\n", input_name); | |
fa6963b2 PZ |
582 | exit(-1); |
583 | } | |
584 | ||
83a0944f | 585 | if (!input_stat.st_size) { |
8035e428 IM |
586 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
587 | exit(0); | |
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 | ||
da21d1b5 | 661 | if (verbose > 3) |
d5b889f2 | 662 | threads__fprintf(stdout); |
8035e428 | 663 | |
da21d1b5 | 664 | if (verbose > 2) |
8035e428 IM |
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"), | |
b32d133a ACM |
690 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
691 | "file", "vmlinux pathname"), | |
692 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | |
42976487 | 693 | "load module symbols - WARNING: use only with -k and LIVE kernel"), |
301406b9 FW |
694 | OPT_BOOLEAN('l', "print-line", &print_line, |
695 | "print matching source lines (may be slow)"), | |
42976487 MG |
696 | OPT_BOOLEAN('P', "full-paths", &full_paths, |
697 | "Don't shorten the displayed pathnames"), | |
8035e428 IM |
698 | OPT_END() |
699 | }; | |
700 | ||
701 | static void setup_sorting(void) | |
702 | { | |
703 | char *tmp, *tok, *str = strdup(sort_order); | |
704 | ||
705 | for (tok = strtok_r(str, ", ", &tmp); | |
706 | tok; tok = strtok_r(NULL, ", ", &tmp)) { | |
707 | if (sort_dimension__add(tok) < 0) { | |
708 | error("Unknown --sort key: `%s'", tok); | |
709 | usage_with_options(annotate_usage, options); | |
710 | } | |
711 | } | |
712 | ||
713 | free(str); | |
714 | } | |
715 | ||
f37a291c | 716 | int cmd_annotate(int argc, const char **argv, const char *prefix __used) |
8035e428 | 717 | { |
b32d133a ACM |
718 | if (symbol__init(&symbol_conf) < 0) |
719 | return -1; | |
8035e428 IM |
720 | |
721 | page_size = getpagesize(); | |
722 | ||
723 | argc = parse_options(argc, argv, options, annotate_usage, 0); | |
724 | ||
725 | setup_sorting(); | |
726 | ||
0b73da3f IM |
727 | if (argc) { |
728 | /* | |
729 | * Special case: if there's an argument left then assume tha | |
730 | * it's a symbol filter: | |
731 | */ | |
732 | if (argc > 1) | |
733 | usage_with_options(annotate_usage, options); | |
734 | ||
735 | sym_hist_filter = argv[0]; | |
736 | } | |
737 | ||
8035e428 IM |
738 | setup_pager(); |
739 | ||
dd68ada2 JK |
740 | if (field_sep && *field_sep == '.') { |
741 | fputs("'.' is the only non valid --field-separator argument\n", | |
742 | stderr); | |
743 | exit(129); | |
744 | } | |
745 | ||
8035e428 IM |
746 | return __cmd_annotate(); |
747 | } |