blob: dddf3f01b5ab3c91db25611ac4a2ed6c5adcf064 [file] [log] [blame]
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +02001#include "builtin.h"
2
3#include "util/util.h"
4#include "util/cache.h"
5#include "util/symbol.h"
6#include "util/thread.h"
7#include "util/header.h"
Ingo Molnarcf723442009-11-28 10:11:00 +01008#include "util/exec_cmd.h"
9#include "util/trace-event.h"
Arnaldo Carvalho de Melo94c744b2009-12-11 21:24:02 -020010#include "util/session.h"
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020011
Tom Zanussi956ffd02009-11-25 01:15:46 -060012static char const *script_name;
13static char const *generate_script_lang;
Frederic Weisbeckere1889d72010-04-24 01:55:09 +020014static bool debug_ordering;
15static u64 last_timestamp;
Tom Zanussi956ffd02009-11-25 01:15:46 -060016
Tom Zanussi586bc5c2009-12-15 02:53:35 -060017static int default_start_script(const char *script __unused,
18 int argc __unused,
19 const char **argv __unused)
Tom Zanussi956ffd02009-11-25 01:15:46 -060020{
21 return 0;
22}
23
24static int default_stop_script(void)
25{
26 return 0;
27}
28
Tom Zanussi586bc5c2009-12-15 02:53:35 -060029static int default_generate_script(const char *outfile __unused)
Tom Zanussi956ffd02009-11-25 01:15:46 -060030{
31 return 0;
32}
33
34static struct scripting_ops default_scripting_ops = {
35 .start_script = default_start_script,
36 .stop_script = default_stop_script,
37 .process_event = print_event,
38 .generate_script = default_generate_script,
39};
40
41static struct scripting_ops *scripting_ops;
42
43static void setup_scripting(void)
44{
45 /* make sure PERF_EXEC_PATH is set for scripts */
46 perf_set_argv_exec_path(perf_exec_path());
47
Tom Zanussi16c632d2009-11-25 01:15:48 -060048 setup_perl_scripting();
Tom Zanussi7e4b21b2010-01-27 02:27:57 -060049 setup_python_scripting();
Tom Zanussi16c632d2009-11-25 01:15:48 -060050
Tom Zanussi956ffd02009-11-25 01:15:46 -060051 scripting_ops = &default_scripting_ops;
52}
53
54static int cleanup_scripting(void)
55{
Tom Zanussi3824a4e2010-05-09 23:46:57 -050056 pr_debug("\nperf trace script stopped\n");
57
Tom Zanussi956ffd02009-11-25 01:15:46 -060058 return scripting_ops->stop_script();
59}
60
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020061#include "util/parse-options.h"
62
63#include "perf.h"
64#include "util/debug.h"
65
66#include "util/trace-event.h"
Tom Zanussi956ffd02009-11-25 01:15:46 -060067#include "util/exec_cmd.h"
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020068
Tom Zanussi956ffd02009-11-25 01:15:46 -060069static char const *input_name = "perf.data";
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020070
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -020071static int process_sample_event(event_t *event, struct perf_session *session)
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020072{
OGAWA Hirofumi180f95e2009-12-06 20:08:24 +090073 struct sample_data data;
74 struct thread *thread;
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020075
OGAWA Hirofumi180f95e2009-12-06 20:08:24 +090076 memset(&data, 0, sizeof(data));
77 data.time = -1;
78 data.cpu = -1;
79 data.period = 1;
Ingo Molnar6ddf2592009-09-03 12:00:22 +020080
Arnaldo Carvalho de Meloc0198792009-12-14 14:23:00 -020081 event__parse_sample(event, session->sample_type, &data);
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020082
Arnaldo Carvalho de Melo0d755032010-01-14 12:23:09 -020083 dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc,
84 data.pid, data.tid, data.ip, data.period);
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020085
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -020086 thread = perf_session__findnew(session, event->ip.pid);
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020087 if (thread == NULL) {
Arnaldo Carvalho de Melo6beba7a2009-10-21 17:34:06 -020088 pr_debug("problem processing %d event, skipping it.\n",
89 event->header.type);
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +020090 return -1;
91 }
92
Arnaldo Carvalho de Meloc0198792009-12-14 14:23:00 -020093 if (session->sample_type & PERF_SAMPLE_RAW) {
Frederic Weisbeckere1889d72010-04-24 01:55:09 +020094 if (debug_ordering) {
95 if (data.time < last_timestamp) {
96 pr_err("Samples misordered, previous: %llu "
97 "this: %llu\n", last_timestamp,
98 data.time);
99 }
100 last_timestamp = data.time;
101 }
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200102 /*
103 * FIXME: better resolve from pid from the struct trace_entry
104 * field, although it should be the same than this perf
105 * event pid
106 */
OGAWA Hirofumi180f95e2009-12-06 20:08:24 +0900107 scripting_ops->process_event(data.cpu, data.raw_data,
108 data.raw_size,
109 data.time, thread->comm);
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200110 }
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200111
Arnaldo Carvalho de Melocee75ac2010-05-14 13:16:55 -0300112 session->hists.stats.total_period += data.period;
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200113 return 0;
114}
115
Arnaldo Carvalho de Melo301a0b02009-12-13 19:50:25 -0200116static struct perf_event_ops event_ops = {
Arnaldo Carvalho de Melo55aa640f2009-12-27 21:37:05 -0200117 .sample = process_sample_event,
118 .comm = event__process_comm,
Tom Zanussi2c46dbb2010-04-01 23:59:19 -0500119 .attr = event__process_attr,
Tom Zanussicd19a032010-04-01 23:59:20 -0500120 .event_type = event__process_event_type,
Tom Zanussi92155452010-04-01 23:59:21 -0500121 .tracing_data = event__process_tracing_data,
Tom Zanussic7929e42010-04-01 23:59:22 -0500122 .build_id = event__process_build_id,
Frederic Weisbeckere0a808c2010-04-24 00:38:33 +0200123 .ordered_samples = true,
Frederic Weisbecker016e92f2009-10-07 12:47:31 +0200124};
125
Tom Zanussic239da32010-04-01 23:59:18 -0500126extern volatile int session_done;
127
128static void sig_handler(int sig __unused)
129{
130 session_done = 1;
131}
132
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200133static int __cmd_trace(struct perf_session *session)
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200134{
Tom Zanussic239da32010-04-01 23:59:18 -0500135 signal(SIGINT, sig_handler);
136
Arnaldo Carvalho de Meloec913362009-12-13 19:50:27 -0200137 return perf_session__process_events(session, &event_ops);
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200138}
139
Tom Zanussi956ffd02009-11-25 01:15:46 -0600140struct script_spec {
141 struct list_head node;
142 struct scripting_ops *ops;
143 char spec[0];
144};
145
146LIST_HEAD(script_specs);
147
148static struct script_spec *script_spec__new(const char *spec,
149 struct scripting_ops *ops)
150{
151 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
152
153 if (s != NULL) {
154 strcpy(s->spec, spec);
155 s->ops = ops;
156 }
157
158 return s;
159}
160
161static void script_spec__delete(struct script_spec *s)
162{
163 free(s->spec);
164 free(s);
165}
166
167static void script_spec__add(struct script_spec *s)
168{
169 list_add_tail(&s->node, &script_specs);
170}
171
172static struct script_spec *script_spec__find(const char *spec)
173{
174 struct script_spec *s;
175
176 list_for_each_entry(s, &script_specs, node)
177 if (strcasecmp(s->spec, spec) == 0)
178 return s;
179 return NULL;
180}
181
182static struct script_spec *script_spec__findnew(const char *spec,
183 struct scripting_ops *ops)
184{
185 struct script_spec *s = script_spec__find(spec);
186
187 if (s)
188 return s;
189
190 s = script_spec__new(spec, ops);
191 if (!s)
192 goto out_delete_spec;
193
194 script_spec__add(s);
195
196 return s;
197
198out_delete_spec:
199 script_spec__delete(s);
200
201 return NULL;
202}
203
204int script_spec_register(const char *spec, struct scripting_ops *ops)
205{
206 struct script_spec *s;
207
208 s = script_spec__find(spec);
209 if (s)
210 return -1;
211
212 s = script_spec__findnew(spec, ops);
213 if (!s)
214 return -1;
215
216 return 0;
217}
218
219static struct scripting_ops *script_spec__lookup(const char *spec)
220{
221 struct script_spec *s = script_spec__find(spec);
222 if (!s)
223 return NULL;
224
225 return s->ops;
226}
227
228static void list_available_languages(void)
229{
230 struct script_spec *s;
231
232 fprintf(stderr, "\n");
233 fprintf(stderr, "Scripting language extensions (used in "
234 "perf trace -s [spec:]script.[spec]):\n\n");
235
236 list_for_each_entry(s, &script_specs, node)
237 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
238
239 fprintf(stderr, "\n");
240}
241
242static int parse_scriptname(const struct option *opt __used,
243 const char *str, int unset __used)
244{
245 char spec[PATH_MAX];
246 const char *script, *ext;
247 int len;
248
Tom Zanussif526d682010-01-27 02:27:52 -0600249 if (strcmp(str, "lang") == 0) {
Tom Zanussi956ffd02009-11-25 01:15:46 -0600250 list_available_languages();
Tom Zanussif526d682010-01-27 02:27:52 -0600251 exit(0);
Tom Zanussi956ffd02009-11-25 01:15:46 -0600252 }
253
254 script = strchr(str, ':');
255 if (script) {
256 len = script - str;
257 if (len >= PATH_MAX) {
258 fprintf(stderr, "invalid language specifier");
259 return -1;
260 }
261 strncpy(spec, str, len);
262 spec[len] = '\0';
263 scripting_ops = script_spec__lookup(spec);
264 if (!scripting_ops) {
265 fprintf(stderr, "invalid language specifier");
266 return -1;
267 }
268 script++;
269 } else {
270 script = str;
271 ext = strchr(script, '.');
272 if (!ext) {
273 fprintf(stderr, "invalid script extension");
274 return -1;
275 }
276 scripting_ops = script_spec__lookup(++ext);
277 if (!scripting_ops) {
278 fprintf(stderr, "invalid script extension");
279 return -1;
280 }
281 }
282
283 script_name = strdup(script);
284
285 return 0;
286}
287
Tom Zanussi4b9c0c52009-12-15 02:53:38 -0600288#define for_each_lang(scripts_dir, lang_dirent, lang_next) \
289 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \
290 lang_next) \
291 if (lang_dirent.d_type == DT_DIR && \
292 (strcmp(lang_dirent.d_name, ".")) && \
293 (strcmp(lang_dirent.d_name, "..")))
294
295#define for_each_script(lang_dir, script_dirent, script_next) \
296 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \
297 script_next) \
298 if (script_dirent.d_type != DT_DIR)
299
300
301#define RECORD_SUFFIX "-record"
302#define REPORT_SUFFIX "-report"
303
304struct script_desc {
305 struct list_head node;
306 char *name;
307 char *half_liner;
308 char *args;
309};
310
311LIST_HEAD(script_descs);
312
313static struct script_desc *script_desc__new(const char *name)
314{
315 struct script_desc *s = zalloc(sizeof(*s));
316
317 if (s != NULL)
318 s->name = strdup(name);
319
320 return s;
321}
322
323static void script_desc__delete(struct script_desc *s)
324{
325 free(s->name);
326 free(s);
327}
328
329static void script_desc__add(struct script_desc *s)
330{
331 list_add_tail(&s->node, &script_descs);
332}
333
334static struct script_desc *script_desc__find(const char *name)
335{
336 struct script_desc *s;
337
338 list_for_each_entry(s, &script_descs, node)
339 if (strcasecmp(s->name, name) == 0)
340 return s;
341 return NULL;
342}
343
344static struct script_desc *script_desc__findnew(const char *name)
345{
346 struct script_desc *s = script_desc__find(name);
347
348 if (s)
349 return s;
350
351 s = script_desc__new(name);
352 if (!s)
353 goto out_delete_desc;
354
355 script_desc__add(s);
356
357 return s;
358
359out_delete_desc:
360 script_desc__delete(s);
361
362 return NULL;
363}
364
365static char *ends_with(char *str, const char *suffix)
366{
367 size_t suffix_len = strlen(suffix);
368 char *p = str;
369
370 if (strlen(str) > suffix_len) {
371 p = str + strlen(str) - suffix_len;
372 if (!strncmp(p, suffix, suffix_len))
373 return p;
374 }
375
376 return NULL;
377}
378
379static char *ltrim(char *str)
380{
381 int len = strlen(str);
382
383 while (len && isspace(*str)) {
384 len--;
385 str++;
386 }
387
388 return str;
389}
390
391static int read_script_info(struct script_desc *desc, const char *filename)
392{
393 char line[BUFSIZ], *p;
394 FILE *fp;
395
396 fp = fopen(filename, "r");
397 if (!fp)
398 return -1;
399
400 while (fgets(line, sizeof(line), fp)) {
401 p = ltrim(line);
402 if (strlen(p) == 0)
403 continue;
404 if (*p != '#')
405 continue;
406 p++;
407 if (strlen(p) && *p == '!')
408 continue;
409
410 p = ltrim(p);
411 if (strlen(p) && p[strlen(p) - 1] == '\n')
412 p[strlen(p) - 1] = '\0';
413
414 if (!strncmp(p, "description:", strlen("description:"))) {
415 p += strlen("description:");
416 desc->half_liner = strdup(ltrim(p));
417 continue;
418 }
419
420 if (!strncmp(p, "args:", strlen("args:"))) {
421 p += strlen("args:");
422 desc->args = strdup(ltrim(p));
423 continue;
424 }
425 }
426
427 fclose(fp);
428
429 return 0;
430}
431
432static int list_available_scripts(const struct option *opt __used,
433 const char *s __used, int unset __used)
434{
435 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
436 char scripts_path[MAXPATHLEN];
437 DIR *scripts_dir, *lang_dir;
438 char script_path[MAXPATHLEN];
439 char lang_path[MAXPATHLEN];
440 struct script_desc *desc;
441 char first_half[BUFSIZ];
442 char *script_root;
443 char *str;
444
445 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
446
447 scripts_dir = opendir(scripts_path);
448 if (!scripts_dir)
449 return -1;
450
451 for_each_lang(scripts_dir, lang_dirent, lang_next) {
452 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
453 lang_dirent.d_name);
454 lang_dir = opendir(lang_path);
455 if (!lang_dir)
456 continue;
457
458 for_each_script(lang_dir, script_dirent, script_next) {
459 script_root = strdup(script_dirent.d_name);
460 str = ends_with(script_root, REPORT_SUFFIX);
461 if (str) {
462 *str = '\0';
463 desc = script_desc__findnew(script_root);
464 snprintf(script_path, MAXPATHLEN, "%s/%s",
465 lang_path, script_dirent.d_name);
466 read_script_info(desc, script_path);
467 }
468 free(script_root);
469 }
470 }
471
472 fprintf(stdout, "List of available trace scripts:\n");
473 list_for_each_entry(desc, &script_descs, node) {
474 sprintf(first_half, "%s %s", desc->name,
475 desc->args ? desc->args : "");
476 fprintf(stdout, " %-36s %s\n", first_half,
477 desc->half_liner ? desc->half_liner : "");
478 }
479
480 exit(0);
481}
482
Tom Zanussi38752942009-12-15 02:53:39 -0600483static char *get_script_path(const char *script_root, const char *suffix)
484{
485 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
486 char scripts_path[MAXPATHLEN];
487 char script_path[MAXPATHLEN];
488 DIR *scripts_dir, *lang_dir;
489 char lang_path[MAXPATHLEN];
490 char *str, *__script_root;
491 char *path = NULL;
492
493 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
494
495 scripts_dir = opendir(scripts_path);
496 if (!scripts_dir)
497 return NULL;
498
499 for_each_lang(scripts_dir, lang_dirent, lang_next) {
500 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
501 lang_dirent.d_name);
502 lang_dir = opendir(lang_path);
503 if (!lang_dir)
504 continue;
505
506 for_each_script(lang_dir, script_dirent, script_next) {
507 __script_root = strdup(script_dirent.d_name);
508 str = ends_with(__script_root, suffix);
509 if (str) {
510 *str = '\0';
511 if (strcmp(__script_root, script_root))
512 continue;
513 snprintf(script_path, MAXPATHLEN, "%s/%s",
514 lang_path, script_dirent.d_name);
515 path = strdup(script_path);
516 free(__script_root);
517 break;
518 }
519 free(__script_root);
520 }
521 }
522
523 return path;
524}
525
Arnaldo Carvalho de Melo0422a4f2009-12-18 16:35:58 -0200526static const char * const trace_usage[] = {
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200527 "perf trace [<options>] <command>",
528 NULL
529};
530
531static const struct option options[] = {
532 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
533 "dump raw trace in ASCII"),
Ian Munsiec0555642010-04-13 18:37:33 +1000534 OPT_INCR('v', "verbose", &verbose,
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200535 "be more verbose (show symbol address, etc)"),
Tom Zanussi4b9c0c52009-12-15 02:53:38 -0600536 OPT_BOOLEAN('L', "Latency", &latency_format,
Steven Rostedtcda48462009-10-14 15:43:42 -0400537 "show latency attributes (irqs/preemption disabled, etc)"),
Tom Zanussi4b9c0c52009-12-15 02:53:38 -0600538 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
539 list_available_scripts),
Tom Zanussi956ffd02009-11-25 01:15:46 -0600540 OPT_CALLBACK('s', "script", NULL, "name",
541 "script file name (lang:script name, script name, or *)",
542 parse_scriptname),
543 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
544 "generate perf-trace.xx script in specified language"),
Hitoshi Mitake408f0d12010-01-22 22:45:29 +0900545 OPT_STRING('i', "input", &input_name, "file",
546 "input file name"),
Frederic Weisbeckere1889d72010-04-24 01:55:09 +0200547 OPT_BOOLEAN('d', "debug-ordering", &debug_ordering,
548 "check that samples time ordering is monotonic"),
Tom Zanussi956ffd02009-11-25 01:15:46 -0600549
Masami Hiramatsu19096292009-08-21 14:56:03 -0400550 OPT_END()
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200551};
552
553int cmd_trace(int argc, const char **argv, const char *prefix __used)
554{
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200555 struct perf_session *session;
Tom Zanussi38752942009-12-15 02:53:39 -0600556 const char *suffix = NULL;
557 const char **__argv;
558 char *script_path;
559 int i, err;
560
561 if (argc >= 2 && strncmp(argv[1], "rec", strlen("rec")) == 0) {
562 if (argc < 3) {
563 fprintf(stderr,
564 "Please specify a record script\n");
565 return -1;
566 }
567 suffix = RECORD_SUFFIX;
568 }
569
570 if (argc >= 2 && strncmp(argv[1], "rep", strlen("rep")) == 0) {
571 if (argc < 3) {
572 fprintf(stderr,
573 "Please specify a report script\n");
574 return -1;
575 }
576 suffix = REPORT_SUFFIX;
577 }
578
Tom Zanussia0cccc22010-04-01 23:59:25 -0500579 if (!suffix && argc >= 2 && strncmp(argv[1], "-", strlen("-")) != 0) {
580 char *record_script_path, *report_script_path;
581 int live_pipe[2];
582 pid_t pid;
583
584 record_script_path = get_script_path(argv[1], RECORD_SUFFIX);
585 if (!record_script_path) {
586 fprintf(stderr, "record script not found\n");
587 return -1;
588 }
589
590 report_script_path = get_script_path(argv[1], REPORT_SUFFIX);
591 if (!report_script_path) {
592 fprintf(stderr, "report script not found\n");
593 return -1;
594 }
595
596 if (pipe(live_pipe) < 0) {
597 perror("failed to create pipe");
598 exit(-1);
599 }
600
601 pid = fork();
602 if (pid < 0) {
603 perror("failed to fork");
604 exit(-1);
605 }
606
607 if (!pid) {
608 dup2(live_pipe[1], 1);
609 close(live_pipe[0]);
610
611 __argv = malloc(5 * sizeof(const char *));
612 __argv[0] = "/bin/sh";
613 __argv[1] = record_script_path;
614 __argv[2] = "-o";
615 __argv[3] = "-";
616 __argv[4] = NULL;
617
618 execvp("/bin/sh", (char **)__argv);
619 exit(-1);
620 }
621
622 dup2(live_pipe[0], 0);
623 close(live_pipe[1]);
624
625 __argv = malloc((argc + 3) * sizeof(const char *));
626 __argv[0] = "/bin/sh";
627 __argv[1] = report_script_path;
628 for (i = 2; i < argc; i++)
629 __argv[i] = argv[i];
630 __argv[i++] = "-i";
631 __argv[i++] = "-";
632 __argv[i++] = NULL;
633
634 execvp("/bin/sh", (char **)__argv);
635 exit(-1);
636 }
637
Tom Zanussi38752942009-12-15 02:53:39 -0600638 if (suffix) {
639 script_path = get_script_path(argv[2], suffix);
640 if (!script_path) {
641 fprintf(stderr, "script not found\n");
642 return -1;
643 }
644
645 __argv = malloc((argc + 1) * sizeof(const char *));
646 __argv[0] = "/bin/sh";
647 __argv[1] = script_path;
648 for (i = 3; i < argc; i++)
649 __argv[i - 1] = argv[i];
650 __argv[argc - 1] = NULL;
651
652 execvp("/bin/sh", (char **)__argv);
653 exit(-1);
654 }
Tom Zanussi956ffd02009-11-25 01:15:46 -0600655
Tom Zanussi956ffd02009-11-25 01:15:46 -0600656 setup_scripting();
657
Arnaldo Carvalho de Melo0422a4f2009-12-18 16:35:58 -0200658 argc = parse_options(argc, argv, options, trace_usage,
Tom Zanussi586bc5c2009-12-15 02:53:35 -0600659 PARSE_OPT_STOP_AT_NON_OPTION);
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200660
Arnaldo Carvalho de Melo655000e2009-12-15 20:04:40 -0200661 if (symbol__init() < 0)
662 return -1;
Tom Zanussicf4fee52010-03-03 01:04:33 -0600663 if (!script_name)
664 setup_pager();
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200665
Tom Zanussi454c4072010-05-01 01:41:20 -0500666 session = perf_session__new(input_name, O_RDONLY, 0, false);
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200667 if (session == NULL)
668 return -ENOMEM;
669
Tom Zanussic239da32010-04-01 23:59:18 -0500670 if (strcmp(input_name, "-") &&
671 !perf_session__has_traces(session, "record -R"))
Arnaldo Carvalho de Melod549c7692009-12-27 21:37:02 -0200672 return -EINVAL;
673
Tom Zanussi956ffd02009-11-25 01:15:46 -0600674 if (generate_script_lang) {
675 struct stat perf_stat;
676
677 int input = open(input_name, O_RDONLY);
678 if (input < 0) {
679 perror("failed to open file");
680 exit(-1);
681 }
682
683 err = fstat(input, &perf_stat);
684 if (err < 0) {
685 perror("failed to stat file");
686 exit(-1);
687 }
688
689 if (!perf_stat.st_size) {
690 fprintf(stderr, "zero-sized file, nothing to do!\n");
691 exit(0);
692 }
693
694 scripting_ops = script_spec__lookup(generate_script_lang);
695 if (!scripting_ops) {
696 fprintf(stderr, "invalid language specifier");
697 return -1;
698 }
699
Tom Zanussi956ffd02009-11-25 01:15:46 -0600700 err = scripting_ops->generate_script("perf-trace");
701 goto out;
702 }
703
704 if (script_name) {
Tom Zanussi586bc5c2009-12-15 02:53:35 -0600705 err = scripting_ops->start_script(script_name, argc, argv);
Tom Zanussi956ffd02009-11-25 01:15:46 -0600706 if (err)
707 goto out;
Tom Zanussi3824a4e2010-05-09 23:46:57 -0500708 pr_debug("perf trace started with script %s\n\n", script_name);
Tom Zanussi956ffd02009-11-25 01:15:46 -0600709 }
710
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200711 err = __cmd_trace(session);
Tom Zanussi956ffd02009-11-25 01:15:46 -0600712
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200713 perf_session__delete(session);
Tom Zanussi956ffd02009-11-25 01:15:46 -0600714 cleanup_scripting();
715out:
716 return err;
Frederic Weisbecker5f9c39d2009-08-17 16:18:08 +0200717}