Commit | Line | Data |
---|---|---|
5f9c39dc FW |
1 | #include "builtin.h" |
2 | ||
b7eead86 | 3 | #include "perf.h" |
5f9c39dc | 4 | #include "util/cache.h" |
b7eead86 AG |
5 | #include "util/debug.h" |
6 | #include "util/exec_cmd.h" | |
7 | #include "util/header.h" | |
8 | #include "util/parse-options.h" | |
9 | #include "util/session.h" | |
5f9c39dc FW |
10 | #include "util/symbol.h" |
11 | #include "util/thread.h" | |
cf72344d | 12 | #include "util/trace-event.h" |
34c86ea9 | 13 | #include "util/parse-options.h" |
b7eead86 | 14 | #include "util/util.h" |
5f9c39dc | 15 | |
956ffd02 TZ |
16 | static char const *script_name; |
17 | static char const *generate_script_lang; | |
ffabd99e | 18 | static bool debug_mode; |
e1889d75 | 19 | static u64 last_timestamp; |
6fcf7ddb | 20 | static u64 nr_unordered; |
34c86ea9 | 21 | extern const struct option record_options[]; |
956ffd02 | 22 | |
586bc5cc TZ |
23 | static int default_start_script(const char *script __unused, |
24 | int argc __unused, | |
25 | const char **argv __unused) | |
956ffd02 TZ |
26 | { |
27 | return 0; | |
28 | } | |
29 | ||
30 | static int default_stop_script(void) | |
31 | { | |
32 | return 0; | |
33 | } | |
34 | ||
586bc5cc | 35 | static int default_generate_script(const char *outfile __unused) |
956ffd02 TZ |
36 | { |
37 | return 0; | |
38 | } | |
39 | ||
40 | static struct scripting_ops default_scripting_ops = { | |
41 | .start_script = default_start_script, | |
42 | .stop_script = default_stop_script, | |
43 | .process_event = print_event, | |
44 | .generate_script = default_generate_script, | |
45 | }; | |
46 | ||
47 | static struct scripting_ops *scripting_ops; | |
48 | ||
49 | static void setup_scripting(void) | |
50 | { | |
16c632de | 51 | setup_perl_scripting(); |
7e4b21b8 | 52 | setup_python_scripting(); |
16c632de | 53 | |
956ffd02 TZ |
54 | scripting_ops = &default_scripting_ops; |
55 | } | |
56 | ||
57 | static int cleanup_scripting(void) | |
58 | { | |
3824a4e8 TZ |
59 | pr_debug("\nperf trace script stopped\n"); |
60 | ||
956ffd02 TZ |
61 | return scripting_ops->stop_script(); |
62 | } | |
63 | ||
956ffd02 | 64 | static char const *input_name = "perf.data"; |
5f9c39dc | 65 | |
b3165f41 | 66 | static int process_sample_event(event_t *event, struct perf_session *session) |
5f9c39dc | 67 | { |
180f95e2 OH |
68 | struct sample_data data; |
69 | struct thread *thread; | |
6ddf259d | 70 | |
180f95e2 OH |
71 | memset(&data, 0, sizeof(data)); |
72 | data.time = -1; | |
73 | data.cpu = -1; | |
74 | data.period = 1; | |
cd6feeea | 75 | |
c019879b | 76 | event__parse_sample(event, session->sample_type, &data); |
5f9c39dc | 77 | |
0d755034 ACM |
78 | dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc, |
79 | data.pid, data.tid, data.ip, data.period); | |
5f9c39dc | 80 | |
b3165f41 | 81 | thread = perf_session__findnew(session, event->ip.pid); |
5f9c39dc | 82 | if (thread == NULL) { |
6beba7ad ACM |
83 | pr_debug("problem processing %d event, skipping it.\n", |
84 | event->header.type); | |
5f9c39dc FW |
85 | return -1; |
86 | } | |
87 | ||
c019879b | 88 | if (session->sample_type & PERF_SAMPLE_RAW) { |
ffabd99e | 89 | if (debug_mode) { |
e1889d75 FW |
90 | if (data.time < last_timestamp) { |
91 | pr_err("Samples misordered, previous: %llu " | |
92 | "this: %llu\n", last_timestamp, | |
93 | data.time); | |
6fcf7ddb | 94 | nr_unordered++; |
e1889d75 FW |
95 | } |
96 | last_timestamp = data.time; | |
6fcf7ddb | 97 | return 0; |
e1889d75 | 98 | } |
5f9c39dc FW |
99 | /* |
100 | * FIXME: better resolve from pid from the struct trace_entry | |
101 | * field, although it should be the same than this perf | |
102 | * event pid | |
103 | */ | |
180f95e2 OH |
104 | scripting_ops->process_event(data.cpu, data.raw_data, |
105 | data.raw_size, | |
106 | data.time, thread->comm); | |
5f9c39dc | 107 | } |
5f9c39dc | 108 | |
cee75ac7 | 109 | session->hists.stats.total_period += data.period; |
5f9c39dc FW |
110 | return 0; |
111 | } | |
112 | ||
ffabd99e FW |
113 | static u64 nr_lost; |
114 | ||
115 | static int process_lost_event(event_t *event, struct perf_session *session __used) | |
116 | { | |
117 | nr_lost += event->lost.lost; | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
301a0b02 | 122 | static struct perf_event_ops event_ops = { |
55aa640f ACM |
123 | .sample = process_sample_event, |
124 | .comm = event__process_comm, | |
2c46dbb5 | 125 | .attr = event__process_attr, |
cd19a035 | 126 | .event_type = event__process_event_type, |
9215545e | 127 | .tracing_data = event__process_tracing_data, |
c7929e47 | 128 | .build_id = event__process_build_id, |
ffabd99e | 129 | .lost = process_lost_event, |
e0a808c6 | 130 | .ordered_samples = true, |
016e92fb FW |
131 | }; |
132 | ||
c239da3b TZ |
133 | extern volatile int session_done; |
134 | ||
135 | static void sig_handler(int sig __unused) | |
136 | { | |
137 | session_done = 1; | |
138 | } | |
139 | ||
d8f66248 | 140 | static int __cmd_trace(struct perf_session *session) |
5f9c39dc | 141 | { |
6fcf7ddb FW |
142 | int ret; |
143 | ||
c239da3b TZ |
144 | signal(SIGINT, sig_handler); |
145 | ||
6fcf7ddb FW |
146 | ret = perf_session__process_events(session, &event_ops); |
147 | ||
ffabd99e | 148 | if (debug_mode) { |
6fcf7ddb | 149 | pr_err("Misordered timestamps: %llu\n", nr_unordered); |
ffabd99e FW |
150 | pr_err("Lost events: %llu\n", nr_lost); |
151 | } | |
6fcf7ddb FW |
152 | |
153 | return ret; | |
5f9c39dc FW |
154 | } |
155 | ||
956ffd02 TZ |
156 | struct script_spec { |
157 | struct list_head node; | |
158 | struct scripting_ops *ops; | |
159 | char spec[0]; | |
160 | }; | |
161 | ||
162 | LIST_HEAD(script_specs); | |
163 | ||
164 | static struct script_spec *script_spec__new(const char *spec, | |
165 | struct scripting_ops *ops) | |
166 | { | |
167 | struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); | |
168 | ||
169 | if (s != NULL) { | |
170 | strcpy(s->spec, spec); | |
171 | s->ops = ops; | |
172 | } | |
173 | ||
174 | return s; | |
175 | } | |
176 | ||
177 | static void script_spec__delete(struct script_spec *s) | |
178 | { | |
179 | free(s->spec); | |
180 | free(s); | |
181 | } | |
182 | ||
183 | static void script_spec__add(struct script_spec *s) | |
184 | { | |
185 | list_add_tail(&s->node, &script_specs); | |
186 | } | |
187 | ||
188 | static struct script_spec *script_spec__find(const char *spec) | |
189 | { | |
190 | struct script_spec *s; | |
191 | ||
192 | list_for_each_entry(s, &script_specs, node) | |
193 | if (strcasecmp(s->spec, spec) == 0) | |
194 | return s; | |
195 | return NULL; | |
196 | } | |
197 | ||
198 | static struct script_spec *script_spec__findnew(const char *spec, | |
199 | struct scripting_ops *ops) | |
200 | { | |
201 | struct script_spec *s = script_spec__find(spec); | |
202 | ||
203 | if (s) | |
204 | return s; | |
205 | ||
206 | s = script_spec__new(spec, ops); | |
207 | if (!s) | |
208 | goto out_delete_spec; | |
209 | ||
210 | script_spec__add(s); | |
211 | ||
212 | return s; | |
213 | ||
214 | out_delete_spec: | |
215 | script_spec__delete(s); | |
216 | ||
217 | return NULL; | |
218 | } | |
219 | ||
220 | int script_spec_register(const char *spec, struct scripting_ops *ops) | |
221 | { | |
222 | struct script_spec *s; | |
223 | ||
224 | s = script_spec__find(spec); | |
225 | if (s) | |
226 | return -1; | |
227 | ||
228 | s = script_spec__findnew(spec, ops); | |
229 | if (!s) | |
230 | return -1; | |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
235 | static struct scripting_ops *script_spec__lookup(const char *spec) | |
236 | { | |
237 | struct script_spec *s = script_spec__find(spec); | |
238 | if (!s) | |
239 | return NULL; | |
240 | ||
241 | return s->ops; | |
242 | } | |
243 | ||
244 | static void list_available_languages(void) | |
245 | { | |
246 | struct script_spec *s; | |
247 | ||
248 | fprintf(stderr, "\n"); | |
249 | fprintf(stderr, "Scripting language extensions (used in " | |
250 | "perf trace -s [spec:]script.[spec]):\n\n"); | |
251 | ||
252 | list_for_each_entry(s, &script_specs, node) | |
253 | fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); | |
254 | ||
255 | fprintf(stderr, "\n"); | |
256 | } | |
257 | ||
258 | static int parse_scriptname(const struct option *opt __used, | |
259 | const char *str, int unset __used) | |
260 | { | |
261 | char spec[PATH_MAX]; | |
262 | const char *script, *ext; | |
263 | int len; | |
264 | ||
f526d68b | 265 | if (strcmp(str, "lang") == 0) { |
956ffd02 | 266 | list_available_languages(); |
f526d68b | 267 | exit(0); |
956ffd02 TZ |
268 | } |
269 | ||
270 | script = strchr(str, ':'); | |
271 | if (script) { | |
272 | len = script - str; | |
273 | if (len >= PATH_MAX) { | |
274 | fprintf(stderr, "invalid language specifier"); | |
275 | return -1; | |
276 | } | |
277 | strncpy(spec, str, len); | |
278 | spec[len] = '\0'; | |
279 | scripting_ops = script_spec__lookup(spec); | |
280 | if (!scripting_ops) { | |
281 | fprintf(stderr, "invalid language specifier"); | |
282 | return -1; | |
283 | } | |
284 | script++; | |
285 | } else { | |
286 | script = str; | |
d1e95bb5 | 287 | ext = strrchr(script, '.'); |
956ffd02 TZ |
288 | if (!ext) { |
289 | fprintf(stderr, "invalid script extension"); | |
290 | return -1; | |
291 | } | |
292 | scripting_ops = script_spec__lookup(++ext); | |
293 | if (!scripting_ops) { | |
294 | fprintf(stderr, "invalid script extension"); | |
295 | return -1; | |
296 | } | |
297 | } | |
298 | ||
299 | script_name = strdup(script); | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
4b9c0c59 TZ |
304 | #define for_each_lang(scripts_dir, lang_dirent, lang_next) \ |
305 | while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ | |
306 | lang_next) \ | |
307 | if (lang_dirent.d_type == DT_DIR && \ | |
308 | (strcmp(lang_dirent.d_name, ".")) && \ | |
309 | (strcmp(lang_dirent.d_name, ".."))) | |
310 | ||
311 | #define for_each_script(lang_dir, script_dirent, script_next) \ | |
312 | while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ | |
313 | script_next) \ | |
314 | if (script_dirent.d_type != DT_DIR) | |
315 | ||
316 | ||
317 | #define RECORD_SUFFIX "-record" | |
318 | #define REPORT_SUFFIX "-report" | |
319 | ||
320 | struct script_desc { | |
321 | struct list_head node; | |
322 | char *name; | |
323 | char *half_liner; | |
324 | char *args; | |
325 | }; | |
326 | ||
327 | LIST_HEAD(script_descs); | |
328 | ||
329 | static struct script_desc *script_desc__new(const char *name) | |
330 | { | |
331 | struct script_desc *s = zalloc(sizeof(*s)); | |
332 | ||
333 | if (s != NULL) | |
334 | s->name = strdup(name); | |
335 | ||
336 | return s; | |
337 | } | |
338 | ||
339 | static void script_desc__delete(struct script_desc *s) | |
340 | { | |
341 | free(s->name); | |
e8719adf TZ |
342 | free(s->half_liner); |
343 | free(s->args); | |
4b9c0c59 TZ |
344 | free(s); |
345 | } | |
346 | ||
347 | static void script_desc__add(struct script_desc *s) | |
348 | { | |
349 | list_add_tail(&s->node, &script_descs); | |
350 | } | |
351 | ||
352 | static struct script_desc *script_desc__find(const char *name) | |
353 | { | |
354 | struct script_desc *s; | |
355 | ||
356 | list_for_each_entry(s, &script_descs, node) | |
357 | if (strcasecmp(s->name, name) == 0) | |
358 | return s; | |
359 | return NULL; | |
360 | } | |
361 | ||
362 | static struct script_desc *script_desc__findnew(const char *name) | |
363 | { | |
364 | struct script_desc *s = script_desc__find(name); | |
365 | ||
366 | if (s) | |
367 | return s; | |
368 | ||
369 | s = script_desc__new(name); | |
370 | if (!s) | |
371 | goto out_delete_desc; | |
372 | ||
373 | script_desc__add(s); | |
374 | ||
375 | return s; | |
376 | ||
377 | out_delete_desc: | |
378 | script_desc__delete(s); | |
379 | ||
380 | return NULL; | |
381 | } | |
382 | ||
383 | static char *ends_with(char *str, const char *suffix) | |
384 | { | |
385 | size_t suffix_len = strlen(suffix); | |
386 | char *p = str; | |
387 | ||
388 | if (strlen(str) > suffix_len) { | |
389 | p = str + strlen(str) - suffix_len; | |
390 | if (!strncmp(p, suffix, suffix_len)) | |
391 | return p; | |
392 | } | |
393 | ||
394 | return NULL; | |
395 | } | |
396 | ||
397 | static char *ltrim(char *str) | |
398 | { | |
399 | int len = strlen(str); | |
400 | ||
401 | while (len && isspace(*str)) { | |
402 | len--; | |
403 | str++; | |
404 | } | |
405 | ||
406 | return str; | |
407 | } | |
408 | ||
409 | static int read_script_info(struct script_desc *desc, const char *filename) | |
410 | { | |
411 | char line[BUFSIZ], *p; | |
412 | FILE *fp; | |
413 | ||
414 | fp = fopen(filename, "r"); | |
415 | if (!fp) | |
416 | return -1; | |
417 | ||
418 | while (fgets(line, sizeof(line), fp)) { | |
419 | p = ltrim(line); | |
420 | if (strlen(p) == 0) | |
421 | continue; | |
422 | if (*p != '#') | |
423 | continue; | |
424 | p++; | |
425 | if (strlen(p) && *p == '!') | |
426 | continue; | |
427 | ||
428 | p = ltrim(p); | |
429 | if (strlen(p) && p[strlen(p) - 1] == '\n') | |
430 | p[strlen(p) - 1] = '\0'; | |
431 | ||
432 | if (!strncmp(p, "description:", strlen("description:"))) { | |
433 | p += strlen("description:"); | |
434 | desc->half_liner = strdup(ltrim(p)); | |
435 | continue; | |
436 | } | |
437 | ||
438 | if (!strncmp(p, "args:", strlen("args:"))) { | |
439 | p += strlen("args:"); | |
440 | desc->args = strdup(ltrim(p)); | |
441 | continue; | |
442 | } | |
443 | } | |
444 | ||
445 | fclose(fp); | |
446 | ||
447 | return 0; | |
448 | } | |
449 | ||
450 | static int list_available_scripts(const struct option *opt __used, | |
451 | const char *s __used, int unset __used) | |
452 | { | |
453 | struct dirent *script_next, *lang_next, script_dirent, lang_dirent; | |
454 | char scripts_path[MAXPATHLEN]; | |
455 | DIR *scripts_dir, *lang_dir; | |
456 | char script_path[MAXPATHLEN]; | |
457 | char lang_path[MAXPATHLEN]; | |
458 | struct script_desc *desc; | |
459 | char first_half[BUFSIZ]; | |
460 | char *script_root; | |
461 | char *str; | |
462 | ||
463 | snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); | |
464 | ||
465 | scripts_dir = opendir(scripts_path); | |
466 | if (!scripts_dir) | |
467 | return -1; | |
468 | ||
469 | for_each_lang(scripts_dir, lang_dirent, lang_next) { | |
470 | snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, | |
471 | lang_dirent.d_name); | |
472 | lang_dir = opendir(lang_path); | |
473 | if (!lang_dir) | |
474 | continue; | |
475 | ||
476 | for_each_script(lang_dir, script_dirent, script_next) { | |
477 | script_root = strdup(script_dirent.d_name); | |
478 | str = ends_with(script_root, REPORT_SUFFIX); | |
479 | if (str) { | |
480 | *str = '\0'; | |
481 | desc = script_desc__findnew(script_root); | |
482 | snprintf(script_path, MAXPATHLEN, "%s/%s", | |
483 | lang_path, script_dirent.d_name); | |
484 | read_script_info(desc, script_path); | |
485 | } | |
486 | free(script_root); | |
487 | } | |
488 | } | |
489 | ||
490 | fprintf(stdout, "List of available trace scripts:\n"); | |
491 | list_for_each_entry(desc, &script_descs, node) { | |
492 | sprintf(first_half, "%s %s", desc->name, | |
493 | desc->args ? desc->args : ""); | |
494 | fprintf(stdout, " %-36s %s\n", first_half, | |
495 | desc->half_liner ? desc->half_liner : ""); | |
496 | } | |
497 | ||
498 | exit(0); | |
499 | } | |
500 | ||
3875294f TZ |
501 | static char *get_script_path(const char *script_root, const char *suffix) |
502 | { | |
503 | struct dirent *script_next, *lang_next, script_dirent, lang_dirent; | |
504 | char scripts_path[MAXPATHLEN]; | |
505 | char script_path[MAXPATHLEN]; | |
506 | DIR *scripts_dir, *lang_dir; | |
507 | char lang_path[MAXPATHLEN]; | |
508 | char *str, *__script_root; | |
509 | char *path = NULL; | |
510 | ||
511 | snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); | |
512 | ||
513 | scripts_dir = opendir(scripts_path); | |
514 | if (!scripts_dir) | |
515 | return NULL; | |
516 | ||
517 | for_each_lang(scripts_dir, lang_dirent, lang_next) { | |
518 | snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, | |
519 | lang_dirent.d_name); | |
520 | lang_dir = opendir(lang_path); | |
521 | if (!lang_dir) | |
522 | continue; | |
523 | ||
524 | for_each_script(lang_dir, script_dirent, script_next) { | |
525 | __script_root = strdup(script_dirent.d_name); | |
526 | str = ends_with(__script_root, suffix); | |
527 | if (str) { | |
528 | *str = '\0'; | |
529 | if (strcmp(__script_root, script_root)) | |
530 | continue; | |
531 | snprintf(script_path, MAXPATHLEN, "%s/%s", | |
532 | lang_path, script_dirent.d_name); | |
533 | path = strdup(script_path); | |
534 | free(__script_root); | |
535 | break; | |
536 | } | |
537 | free(__script_root); | |
538 | } | |
539 | } | |
540 | ||
541 | return path; | |
542 | } | |
543 | ||
0422a4fc | 544 | static const char * const trace_usage[] = { |
5f9c39dc FW |
545 | "perf trace [<options>] <command>", |
546 | NULL | |
547 | }; | |
548 | ||
549 | static const struct option options[] = { | |
550 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | |
551 | "dump raw trace in ASCII"), | |
c0555642 | 552 | OPT_INCR('v', "verbose", &verbose, |
5f9c39dc | 553 | "be more verbose (show symbol address, etc)"), |
4b9c0c59 | 554 | OPT_BOOLEAN('L', "Latency", &latency_format, |
cda48461 | 555 | "show latency attributes (irqs/preemption disabled, etc)"), |
4b9c0c59 TZ |
556 | OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", |
557 | list_available_scripts), | |
956ffd02 TZ |
558 | OPT_CALLBACK('s', "script", NULL, "name", |
559 | "script file name (lang:script name, script name, or *)", | |
560 | parse_scriptname), | |
561 | OPT_STRING('g', "gen-script", &generate_script_lang, "lang", | |
562 | "generate perf-trace.xx script in specified language"), | |
408f0d18 HM |
563 | OPT_STRING('i', "input", &input_name, "file", |
564 | "input file name"), | |
ffabd99e FW |
565 | OPT_BOOLEAN('d', "debug-mode", &debug_mode, |
566 | "do various checks like samples ordering and lost events"), | |
956ffd02 | 567 | |
1909629f | 568 | OPT_END() |
5f9c39dc FW |
569 | }; |
570 | ||
34c86ea9 TZ |
571 | static bool have_cmd(int argc, const char **argv) |
572 | { | |
573 | char **__argv = malloc(sizeof(const char *) * argc); | |
574 | ||
575 | if (!__argv) | |
576 | die("malloc"); | |
577 | memcpy(__argv, argv, sizeof(const char *) * argc); | |
578 | argc = parse_options(argc, (const char **)__argv, record_options, | |
579 | NULL, PARSE_OPT_STOP_AT_NON_OPTION); | |
580 | free(__argv); | |
581 | ||
582 | return argc != 0; | |
583 | } | |
584 | ||
5f9c39dc FW |
585 | int cmd_trace(int argc, const char **argv, const char *prefix __used) |
586 | { | |
d8f66248 | 587 | struct perf_session *session; |
3875294f TZ |
588 | const char *suffix = NULL; |
589 | const char **__argv; | |
590 | char *script_path; | |
591 | int i, err; | |
592 | ||
593 | if (argc >= 2 && strncmp(argv[1], "rec", strlen("rec")) == 0) { | |
594 | if (argc < 3) { | |
595 | fprintf(stderr, | |
596 | "Please specify a record script\n"); | |
597 | return -1; | |
598 | } | |
599 | suffix = RECORD_SUFFIX; | |
600 | } | |
601 | ||
602 | if (argc >= 2 && strncmp(argv[1], "rep", strlen("rep")) == 0) { | |
603 | if (argc < 3) { | |
604 | fprintf(stderr, | |
605 | "Please specify a report script\n"); | |
606 | return -1; | |
607 | } | |
608 | suffix = REPORT_SUFFIX; | |
609 | } | |
610 | ||
44e668c6 BH |
611 | /* make sure PERF_EXEC_PATH is set for scripts */ |
612 | perf_set_argv_exec_path(perf_exec_path()); | |
613 | ||
a0cccc2e TZ |
614 | if (!suffix && argc >= 2 && strncmp(argv[1], "-", strlen("-")) != 0) { |
615 | char *record_script_path, *report_script_path; | |
616 | int live_pipe[2]; | |
617 | pid_t pid; | |
618 | ||
619 | record_script_path = get_script_path(argv[1], RECORD_SUFFIX); | |
620 | if (!record_script_path) { | |
621 | fprintf(stderr, "record script not found\n"); | |
622 | return -1; | |
623 | } | |
624 | ||
625 | report_script_path = get_script_path(argv[1], REPORT_SUFFIX); | |
626 | if (!report_script_path) { | |
627 | fprintf(stderr, "report script not found\n"); | |
628 | return -1; | |
629 | } | |
630 | ||
631 | if (pipe(live_pipe) < 0) { | |
632 | perror("failed to create pipe"); | |
633 | exit(-1); | |
634 | } | |
635 | ||
636 | pid = fork(); | |
637 | if (pid < 0) { | |
638 | perror("failed to fork"); | |
639 | exit(-1); | |
640 | } | |
641 | ||
642 | if (!pid) { | |
643 | dup2(live_pipe[1], 1); | |
644 | close(live_pipe[0]); | |
645 | ||
b44308f5 | 646 | __argv = malloc(6 * sizeof(const char *)); |
e8719adf TZ |
647 | if (!__argv) |
648 | die("malloc"); | |
649 | ||
a0cccc2e TZ |
650 | __argv[0] = "/bin/sh"; |
651 | __argv[1] = record_script_path; | |
b44308f5 ACM |
652 | __argv[2] = "-q"; |
653 | __argv[3] = "-o"; | |
654 | __argv[4] = "-"; | |
655 | __argv[5] = NULL; | |
a0cccc2e TZ |
656 | |
657 | execvp("/bin/sh", (char **)__argv); | |
e8719adf | 658 | free(__argv); |
a0cccc2e TZ |
659 | exit(-1); |
660 | } | |
661 | ||
662 | dup2(live_pipe[0], 0); | |
663 | close(live_pipe[1]); | |
664 | ||
665 | __argv = malloc((argc + 3) * sizeof(const char *)); | |
e8719adf TZ |
666 | if (!__argv) |
667 | die("malloc"); | |
a0cccc2e TZ |
668 | __argv[0] = "/bin/sh"; |
669 | __argv[1] = report_script_path; | |
670 | for (i = 2; i < argc; i++) | |
671 | __argv[i] = argv[i]; | |
672 | __argv[i++] = "-i"; | |
673 | __argv[i++] = "-"; | |
674 | __argv[i++] = NULL; | |
675 | ||
676 | execvp("/bin/sh", (char **)__argv); | |
e8719adf | 677 | free(__argv); |
a0cccc2e TZ |
678 | exit(-1); |
679 | } | |
680 | ||
3875294f | 681 | if (suffix) { |
34c86ea9 TZ |
682 | bool system_wide = false; |
683 | int j = 0; | |
684 | ||
3875294f TZ |
685 | script_path = get_script_path(argv[2], suffix); |
686 | if (!script_path) { | |
687 | fprintf(stderr, "script not found\n"); | |
688 | return -1; | |
689 | } | |
690 | ||
34c86ea9 TZ |
691 | if (!strcmp(suffix, RECORD_SUFFIX)) |
692 | system_wide = !have_cmd(argc - 2, &argv[2]); | |
693 | ||
3875294f | 694 | __argv = malloc((argc + 1) * sizeof(const char *)); |
e8719adf TZ |
695 | if (!__argv) |
696 | die("malloc"); | |
34c86ea9 TZ |
697 | __argv[j++] = "/bin/sh"; |
698 | __argv[j++] = script_path; | |
699 | if (system_wide) | |
700 | __argv[j++] = "-a"; | |
3875294f | 701 | for (i = 3; i < argc; i++) |
34c86ea9 TZ |
702 | __argv[j++] = argv[i]; |
703 | __argv[j++] = NULL; | |
3875294f TZ |
704 | |
705 | execvp("/bin/sh", (char **)__argv); | |
e8719adf | 706 | free(__argv); |
3875294f TZ |
707 | exit(-1); |
708 | } | |
956ffd02 | 709 | |
956ffd02 TZ |
710 | setup_scripting(); |
711 | ||
0422a4fc | 712 | argc = parse_options(argc, argv, options, trace_usage, |
586bc5cc | 713 | PARSE_OPT_STOP_AT_NON_OPTION); |
5f9c39dc | 714 | |
655000e7 ACM |
715 | if (symbol__init() < 0) |
716 | return -1; | |
cf4fee50 TZ |
717 | if (!script_name) |
718 | setup_pager(); | |
5f9c39dc | 719 | |
454c407e | 720 | session = perf_session__new(input_name, O_RDONLY, 0, false); |
d8f66248 ACM |
721 | if (session == NULL) |
722 | return -ENOMEM; | |
723 | ||
c239da3b TZ |
724 | if (strcmp(input_name, "-") && |
725 | !perf_session__has_traces(session, "record -R")) | |
d549c769 ACM |
726 | return -EINVAL; |
727 | ||
956ffd02 TZ |
728 | if (generate_script_lang) { |
729 | struct stat perf_stat; | |
730 | ||
731 | int input = open(input_name, O_RDONLY); | |
732 | if (input < 0) { | |
733 | perror("failed to open file"); | |
734 | exit(-1); | |
735 | } | |
736 | ||
737 | err = fstat(input, &perf_stat); | |
738 | if (err < 0) { | |
739 | perror("failed to stat file"); | |
740 | exit(-1); | |
741 | } | |
742 | ||
743 | if (!perf_stat.st_size) { | |
744 | fprintf(stderr, "zero-sized file, nothing to do!\n"); | |
745 | exit(0); | |
746 | } | |
747 | ||
748 | scripting_ops = script_spec__lookup(generate_script_lang); | |
749 | if (!scripting_ops) { | |
750 | fprintf(stderr, "invalid language specifier"); | |
751 | return -1; | |
752 | } | |
753 | ||
956ffd02 TZ |
754 | err = scripting_ops->generate_script("perf-trace"); |
755 | goto out; | |
756 | } | |
757 | ||
758 | if (script_name) { | |
586bc5cc | 759 | err = scripting_ops->start_script(script_name, argc, argv); |
956ffd02 TZ |
760 | if (err) |
761 | goto out; | |
3824a4e8 | 762 | pr_debug("perf trace started with script %s\n\n", script_name); |
956ffd02 TZ |
763 | } |
764 | ||
d8f66248 | 765 | err = __cmd_trace(session); |
956ffd02 | 766 | |
d8f66248 | 767 | perf_session__delete(session); |
956ffd02 TZ |
768 | cleanup_scripting(); |
769 | out: | |
770 | return err; | |
5f9c39dc | 771 | } |