1#include "builtin.h"
2
3#include "perf.h"
4#include "util/cache.h"
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"
10#include "util/tool.h"
11#include "util/symbol.h"
12#include "util/thread.h"
13#include "util/trace-event.h"
14#include "util/util.h"
15#include "util/evlist.h"
16#include "util/evsel.h"
17#include "util/sort.h"
18#include "util/data.h"
19#include <linux/bitmap.h>
20
21static char const *script_name;
22static char const *generate_script_lang;
23static bool debug_mode;
24static u64 last_timestamp;
25static u64 nr_unordered;
26extern const struct option record_options[];
27static bool no_callchain;
28static bool latency_format;
29static bool system_wide;
30static const char *cpu_list;
31static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
32
33enum perf_output_field {
34 PERF_OUTPUT_COMM = 1U << 0,
35 PERF_OUTPUT_TID = 1U << 1,
36 PERF_OUTPUT_PID = 1U << 2,
37 PERF_OUTPUT_TIME = 1U << 3,
38 PERF_OUTPUT_CPU = 1U << 4,
39 PERF_OUTPUT_EVNAME = 1U << 5,
40 PERF_OUTPUT_TRACE = 1U << 6,
41 PERF_OUTPUT_IP = 1U << 7,
42 PERF_OUTPUT_SYM = 1U << 8,
43 PERF_OUTPUT_DSO = 1U << 9,
44 PERF_OUTPUT_ADDR = 1U << 10,
45 PERF_OUTPUT_SYMOFFSET = 1U << 11,
46 PERF_OUTPUT_SRCLINE = 1U << 12,
47 PERF_OUTPUT_PERIOD = 1U << 13,
48};
49
50struct output_option {
51 const char *str;
52 enum perf_output_field field;
53} all_output_options[] = {
54 {.str = "comm", .field = PERF_OUTPUT_COMM},
55 {.str = "tid", .field = PERF_OUTPUT_TID},
56 {.str = "pid", .field = PERF_OUTPUT_PID},
57 {.str = "time", .field = PERF_OUTPUT_TIME},
58 {.str = "cpu", .field = PERF_OUTPUT_CPU},
59 {.str = "event", .field = PERF_OUTPUT_EVNAME},
60 {.str = "trace", .field = PERF_OUTPUT_TRACE},
61 {.str = "ip", .field = PERF_OUTPUT_IP},
62 {.str = "sym", .field = PERF_OUTPUT_SYM},
63 {.str = "dso", .field = PERF_OUTPUT_DSO},
64 {.str = "addr", .field = PERF_OUTPUT_ADDR},
65 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
66 {.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
67 {.str = "period", .field = PERF_OUTPUT_PERIOD},
68};
69
70
71static struct {
72 bool user_set;
73 bool wildcard_set;
74 unsigned int print_ip_opts;
75 u64 fields;
76 u64 invalid_fields;
77} output[PERF_TYPE_MAX] = {
78
79 [PERF_TYPE_HARDWARE] = {
80 .user_set = false,
81
82 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
83 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
84 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
85 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
86 PERF_OUTPUT_PERIOD,
87
88 .invalid_fields = PERF_OUTPUT_TRACE,
89 },
90
91 [PERF_TYPE_SOFTWARE] = {
92 .user_set = false,
93
94 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
95 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
96 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
97 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
98 PERF_OUTPUT_PERIOD,
99
100 .invalid_fields = PERF_OUTPUT_TRACE,
101 },
102
103 [PERF_TYPE_TRACEPOINT] = {
104 .user_set = false,
105
106 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
107 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
108 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE,
109 },
110
111 [PERF_TYPE_RAW] = {
112 .user_set = false,
113
114 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
115 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
116 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
117 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
118 PERF_OUTPUT_PERIOD,
119
120 .invalid_fields = PERF_OUTPUT_TRACE,
121 },
122};
123
124static bool output_set_by_user(void)
125{
126 int j;
127 for (j = 0; j < PERF_TYPE_MAX; ++j) {
128 if (output[j].user_set)
129 return true;
130 }
131 return false;
132}
133
134static const char *output_field2str(enum perf_output_field field)
135{
136 int i, imax = ARRAY_SIZE(all_output_options);
137 const char *str = "";
138
139 for (i = 0; i < imax; ++i) {
140 if (all_output_options[i].field == field) {
141 str = all_output_options[i].str;
142 break;
143 }
144 }
145 return str;
146}
147
148#define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x)
149
150static int perf_evsel__check_stype(struct perf_evsel *evsel,
151 u64 sample_type, const char *sample_msg,
152 enum perf_output_field field)
153{
154 struct perf_event_attr *attr = &evsel->attr;
155 int type = attr->type;
156 const char *evname;
157
158 if (attr->sample_type & sample_type)
159 return 0;
160
161 if (output[type].user_set) {
162 evname = perf_evsel__name(evsel);
163 pr_err("Samples for '%s' event do not have %s attribute set. "
164 "Cannot print '%s' field.\n",
165 evname, sample_msg, output_field2str(field));
166 return -1;
167 }
168
169
170 output[type].fields &= ~field;
171 evname = perf_evsel__name(evsel);
172 pr_debug("Samples for '%s' event do not have %s attribute set. "
173 "Skipping '%s' field.\n",
174 evname, sample_msg, output_field2str(field));
175
176 return 0;
177}
178
179static int perf_evsel__check_attr(struct perf_evsel *evsel,
180 struct perf_session *session)
181{
182 struct perf_event_attr *attr = &evsel->attr;
183
184 if (PRINT_FIELD(TRACE) &&
185 !perf_session__has_traces(session, "record -R"))
186 return -EINVAL;
187
188 if (PRINT_FIELD(IP)) {
189 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP",
190 PERF_OUTPUT_IP))
191 return -EINVAL;
192 }
193
194 if (PRINT_FIELD(ADDR) &&
195 perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR",
196 PERF_OUTPUT_ADDR))
197 return -EINVAL;
198
199 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
200 pr_err("Display of symbols requested but neither sample IP nor "
201 "sample address\nis selected. Hence, no addresses to convert "
202 "to symbols.\n");
203 return -EINVAL;
204 }
205 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) {
206 pr_err("Display of offsets requested but symbol is not"
207 "selected.\n");
208 return -EINVAL;
209 }
210 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
211 pr_err("Display of DSO requested but neither sample IP nor "
212 "sample address\nis selected. Hence, no addresses to convert "
213 "to DSO.\n");
214 return -EINVAL;
215 }
216 if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) {
217 pr_err("Display of source line number requested but sample IP is not\n"
218 "selected. Hence, no address to lookup the source line number.\n");
219 return -EINVAL;
220 }
221
222 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
223 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
224 PERF_OUTPUT_TID|PERF_OUTPUT_PID))
225 return -EINVAL;
226
227 if (PRINT_FIELD(TIME) &&
228 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME",
229 PERF_OUTPUT_TIME))
230 return -EINVAL;
231
232 if (PRINT_FIELD(CPU) &&
233 perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU",
234 PERF_OUTPUT_CPU))
235 return -EINVAL;
236
237 if (PRINT_FIELD(PERIOD) &&
238 perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD",
239 PERF_OUTPUT_PERIOD))
240 return -EINVAL;
241
242 return 0;
243}
244
245static void set_print_ip_opts(struct perf_event_attr *attr)
246{
247 unsigned int type = attr->type;
248
249 output[type].print_ip_opts = 0;
250 if (PRINT_FIELD(IP))
251 output[type].print_ip_opts |= PRINT_IP_OPT_IP;
252
253 if (PRINT_FIELD(SYM))
254 output[type].print_ip_opts |= PRINT_IP_OPT_SYM;
255
256 if (PRINT_FIELD(DSO))
257 output[type].print_ip_opts |= PRINT_IP_OPT_DSO;
258
259 if (PRINT_FIELD(SYMOFFSET))
260 output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET;
261
262 if (PRINT_FIELD(SRCLINE))
263 output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE;
264}
265
266
267
268
269
270static int perf_session__check_output_opt(struct perf_session *session)
271{
272 int j;
273 struct perf_evsel *evsel;
274
275 for (j = 0; j < PERF_TYPE_MAX; ++j) {
276 evsel = perf_session__find_first_evtype(session, j);
277
278
279
280
281
282 if (!evsel && output[j].user_set && !output[j].wildcard_set) {
283 pr_err("%s events do not exist. "
284 "Remove corresponding -f option to proceed.\n",
285 event_type(j));
286 return -1;
287 }
288
289 if (evsel && output[j].fields &&
290 perf_evsel__check_attr(evsel, session))
291 return -1;
292
293 if (evsel == NULL)
294 continue;
295
296 set_print_ip_opts(&evsel->attr);
297 }
298
299 if (!no_callchain) {
300 bool use_callchain = false;
301
302 evlist__for_each(session->evlist, evsel) {
303 if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) {
304 use_callchain = true;
305 break;
306 }
307 }
308 if (!use_callchain)
309 symbol_conf.use_callchain = false;
310 }
311
312
313
314
315
316 if (symbol_conf.use_callchain &&
317 !output[PERF_TYPE_TRACEPOINT].user_set) {
318 struct perf_event_attr *attr;
319
320 j = PERF_TYPE_TRACEPOINT;
321 evsel = perf_session__find_first_evtype(session, j);
322 if (evsel == NULL)
323 goto out;
324
325 attr = &evsel->attr;
326
327 if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) {
328 output[j].fields |= PERF_OUTPUT_IP;
329 output[j].fields |= PERF_OUTPUT_SYM;
330 output[j].fields |= PERF_OUTPUT_DSO;
331 set_print_ip_opts(attr);
332 }
333 }
334
335out:
336 return 0;
337}
338
339static void print_sample_start(struct perf_sample *sample,
340 struct thread *thread,
341 struct perf_evsel *evsel)
342{
343 struct perf_event_attr *attr = &evsel->attr;
344 unsigned long secs;
345 unsigned long usecs;
346 unsigned long long nsecs;
347
348 if (PRINT_FIELD(COMM)) {
349 if (latency_format)
350 printf("%8.8s ", thread__comm_str(thread));
351 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
352 printf("%s ", thread__comm_str(thread));
353 else
354 printf("%16s ", thread__comm_str(thread));
355 }
356
357 if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
358 printf("%5d/%-5d ", sample->pid, sample->tid);
359 else if (PRINT_FIELD(PID))
360 printf("%5d ", sample->pid);
361 else if (PRINT_FIELD(TID))
362 printf("%5d ", sample->tid);
363
364 if (PRINT_FIELD(CPU)) {
365 if (latency_format)
366 printf("%3d ", sample->cpu);
367 else
368 printf("[%03d] ", sample->cpu);
369 }
370
371 if (PRINT_FIELD(TIME)) {
372 nsecs = sample->time;
373 secs = nsecs / NSECS_PER_SEC;
374 nsecs -= secs * NSECS_PER_SEC;
375 usecs = nsecs / NSECS_PER_USEC;
376 printf("%5lu.%06lu: ", secs, usecs);
377 }
378}
379
380static void print_sample_addr(union perf_event *event,
381 struct perf_sample *sample,
382 struct machine *machine,
383 struct thread *thread,
384 struct perf_event_attr *attr)
385{
386 struct addr_location al;
387
388 printf("%16" PRIx64, sample->addr);
389
390 if (!sample_addr_correlates_sym(attr))
391 return;
392
393 perf_event__preprocess_sample_addr(event, sample, machine, thread, &al);
394
395 if (PRINT_FIELD(SYM)) {
396 printf(" ");
397 if (PRINT_FIELD(SYMOFFSET))
398 symbol__fprintf_symname_offs(al.sym, &al, stdout);
399 else
400 symbol__fprintf_symname(al.sym, stdout);
401 }
402
403 if (PRINT_FIELD(DSO)) {
404 printf(" (");
405 map__fprintf_dsoname(al.map, stdout);
406 printf(")");
407 }
408}
409
410static void print_sample_bts(union perf_event *event,
411 struct perf_sample *sample,
412 struct perf_evsel *evsel,
413 struct thread *thread,
414 struct addr_location *al)
415{
416 struct perf_event_attr *attr = &evsel->attr;
417 bool print_srcline_last = false;
418
419
420 if (PRINT_FIELD(IP)) {
421 unsigned int print_opts = output[attr->type].print_ip_opts;
422
423 if (symbol_conf.use_callchain && sample->callchain) {
424 printf("\n");
425 } else {
426 printf(" ");
427 if (print_opts & PRINT_IP_OPT_SRCLINE) {
428 print_srcline_last = true;
429 print_opts &= ~PRINT_IP_OPT_SRCLINE;
430 }
431 }
432 perf_evsel__print_ip(evsel, sample, al, print_opts,
433 PERF_MAX_STACK_DEPTH);
434 }
435
436
437 if (PRINT_FIELD(ADDR) ||
438 ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
439 !output[attr->type].user_set)) {
440 printf(" => ");
441 print_sample_addr(event, sample, al->machine, thread, attr);
442 }
443
444 if (print_srcline_last)
445 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
446
447 printf("\n");
448}
449
450static void process_event(union perf_event *event, struct perf_sample *sample,
451 struct perf_evsel *evsel, struct thread *thread,
452 struct addr_location *al)
453{
454 struct perf_event_attr *attr = &evsel->attr;
455
456 if (output[attr->type].fields == 0)
457 return;
458
459 print_sample_start(sample, thread, evsel);
460
461 if (PRINT_FIELD(PERIOD))
462 printf("%10" PRIu64 " ", sample->period);
463
464 if (PRINT_FIELD(EVNAME)) {
465 const char *evname = perf_evsel__name(evsel);
466 printf("%s: ", evname ? evname : "[unknown]");
467 }
468
469 if (is_bts_event(attr)) {
470 print_sample_bts(event, sample, evsel, thread, al);
471 return;
472 }
473
474 if (PRINT_FIELD(TRACE))
475 event_format__print(evsel->tp_format, sample->cpu,
476 sample->raw_data, sample->raw_size);
477 if (PRINT_FIELD(ADDR))
478 print_sample_addr(event, sample, al->machine, thread, attr);
479
480 if (PRINT_FIELD(IP)) {
481 if (!symbol_conf.use_callchain)
482 printf(" ");
483 else
484 printf("\n");
485
486 perf_evsel__print_ip(evsel, sample, al,
487 output[attr->type].print_ip_opts,
488 PERF_MAX_STACK_DEPTH);
489 }
490
491 printf("\n");
492}
493
494static int default_start_script(const char *script __maybe_unused,
495 int argc __maybe_unused,
496 const char **argv __maybe_unused)
497{
498 return 0;
499}
500
501static int default_flush_script(void)
502{
503 return 0;
504}
505
506static int default_stop_script(void)
507{
508 return 0;
509}
510
511static int default_generate_script(struct pevent *pevent __maybe_unused,
512 const char *outfile __maybe_unused)
513{
514 return 0;
515}
516
517static struct scripting_ops default_scripting_ops = {
518 .start_script = default_start_script,
519 .flush_script = default_flush_script,
520 .stop_script = default_stop_script,
521 .process_event = process_event,
522 .generate_script = default_generate_script,
523};
524
525static struct scripting_ops *scripting_ops;
526
527static void setup_scripting(void)
528{
529 setup_perl_scripting();
530 setup_python_scripting();
531
532 scripting_ops = &default_scripting_ops;
533}
534
535static int flush_scripting(void)
536{
537 return scripting_ops->flush_script();
538}
539
540static int cleanup_scripting(void)
541{
542 pr_debug("\nperf script stopped\n");
543
544 return scripting_ops->stop_script();
545}
546
547static int process_sample_event(struct perf_tool *tool __maybe_unused,
548 union perf_event *event,
549 struct perf_sample *sample,
550 struct perf_evsel *evsel,
551 struct machine *machine)
552{
553 struct addr_location al;
554 struct thread *thread = machine__findnew_thread(machine, sample->pid,
555 sample->tid);
556
557 if (thread == NULL) {
558 pr_debug("problem processing %d event, skipping it.\n",
559 event->header.type);
560 return -1;
561 }
562
563 if (debug_mode) {
564 if (sample->time < last_timestamp) {
565 pr_err("Samples misordered, previous: %" PRIu64
566 " this: %" PRIu64 "\n", last_timestamp,
567 sample->time);
568 nr_unordered++;
569 }
570 last_timestamp = sample->time;
571 return 0;
572 }
573
574 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
575 pr_err("problem processing %d event, skipping it.\n",
576 event->header.type);
577 return -1;
578 }
579
580 if (al.filtered)
581 return 0;
582
583 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
584 return 0;
585
586 scripting_ops->process_event(event, sample, evsel, thread, &al);
587
588 return 0;
589}
590
591struct perf_script {
592 struct perf_tool tool;
593 struct perf_session *session;
594 bool show_task_events;
595 bool show_mmap_events;
596};
597
598static int process_attr(struct perf_tool *tool, union perf_event *event,
599 struct perf_evlist **pevlist)
600{
601 struct perf_script *scr = container_of(tool, struct perf_script, tool);
602 struct perf_evlist *evlist;
603 struct perf_evsel *evsel, *pos;
604 int err;
605
606 err = perf_event__process_attr(tool, event, pevlist);
607 if (err)
608 return err;
609
610 evlist = *pevlist;
611 evsel = perf_evlist__last(*pevlist);
612
613 if (evsel->attr.type >= PERF_TYPE_MAX)
614 return 0;
615
616 evlist__for_each(evlist, pos) {
617 if (pos->attr.type == evsel->attr.type && pos != evsel)
618 return 0;
619 }
620
621 set_print_ip_opts(&evsel->attr);
622
623 return perf_evsel__check_attr(evsel, scr->session);
624}
625
626static int process_comm_event(struct perf_tool *tool,
627 union perf_event *event,
628 struct perf_sample *sample,
629 struct machine *machine)
630{
631 struct thread *thread;
632 struct perf_script *script = container_of(tool, struct perf_script, tool);
633 struct perf_session *session = script->session;
634 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
635 int ret = -1;
636
637 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
638 if (thread == NULL) {
639 pr_debug("problem processing COMM event, skipping it.\n");
640 return -1;
641 }
642
643 if (perf_event__process_comm(tool, event, sample, machine) < 0)
644 goto out;
645
646 if (!evsel->attr.sample_id_all) {
647 sample->cpu = 0;
648 sample->time = 0;
649 sample->tid = event->comm.tid;
650 sample->pid = event->comm.pid;
651 }
652 print_sample_start(sample, thread, evsel);
653 perf_event__fprintf(event, stdout);
654 ret = 0;
655
656out:
657 return ret;
658}
659
660static int process_fork_event(struct perf_tool *tool,
661 union perf_event *event,
662 struct perf_sample *sample,
663 struct machine *machine)
664{
665 struct thread *thread;
666 struct perf_script *script = container_of(tool, struct perf_script, tool);
667 struct perf_session *session = script->session;
668 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
669
670 if (perf_event__process_fork(tool, event, sample, machine) < 0)
671 return -1;
672
673 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
674 if (thread == NULL) {
675 pr_debug("problem processing FORK event, skipping it.\n");
676 return -1;
677 }
678
679 if (!evsel->attr.sample_id_all) {
680 sample->cpu = 0;
681 sample->time = event->fork.time;
682 sample->tid = event->fork.tid;
683 sample->pid = event->fork.pid;
684 }
685 print_sample_start(sample, thread, evsel);
686 perf_event__fprintf(event, stdout);
687
688 return 0;
689}
690static int process_exit_event(struct perf_tool *tool,
691 union perf_event *event,
692 struct perf_sample *sample,
693 struct machine *machine)
694{
695 struct thread *thread;
696 struct perf_script *script = container_of(tool, struct perf_script, tool);
697 struct perf_session *session = script->session;
698 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
699
700 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
701 if (thread == NULL) {
702 pr_debug("problem processing EXIT event, skipping it.\n");
703 return -1;
704 }
705
706 if (!evsel->attr.sample_id_all) {
707 sample->cpu = 0;
708 sample->time = 0;
709 sample->tid = event->comm.tid;
710 sample->pid = event->comm.pid;
711 }
712 print_sample_start(sample, thread, evsel);
713 perf_event__fprintf(event, stdout);
714
715 if (perf_event__process_exit(tool, event, sample, machine) < 0)
716 return -1;
717
718 return 0;
719}
720
721static int process_mmap_event(struct perf_tool *tool,
722 union perf_event *event,
723 struct perf_sample *sample,
724 struct machine *machine)
725{
726 struct thread *thread;
727 struct perf_script *script = container_of(tool, struct perf_script, tool);
728 struct perf_session *session = script->session;
729 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
730
731 if (perf_event__process_mmap(tool, event, sample, machine) < 0)
732 return -1;
733
734 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid);
735 if (thread == NULL) {
736 pr_debug("problem processing MMAP event, skipping it.\n");
737 return -1;
738 }
739
740 if (!evsel->attr.sample_id_all) {
741 sample->cpu = 0;
742 sample->time = 0;
743 sample->tid = event->mmap.tid;
744 sample->pid = event->mmap.pid;
745 }
746 print_sample_start(sample, thread, evsel);
747 perf_event__fprintf(event, stdout);
748
749 return 0;
750}
751
752static int process_mmap2_event(struct perf_tool *tool,
753 union perf_event *event,
754 struct perf_sample *sample,
755 struct machine *machine)
756{
757 struct thread *thread;
758 struct perf_script *script = container_of(tool, struct perf_script, tool);
759 struct perf_session *session = script->session;
760 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
761
762 if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
763 return -1;
764
765 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid);
766 if (thread == NULL) {
767 pr_debug("problem processing MMAP2 event, skipping it.\n");
768 return -1;
769 }
770
771 if (!evsel->attr.sample_id_all) {
772 sample->cpu = 0;
773 sample->time = 0;
774 sample->tid = event->mmap2.tid;
775 sample->pid = event->mmap2.pid;
776 }
777 print_sample_start(sample, thread, evsel);
778 perf_event__fprintf(event, stdout);
779
780 return 0;
781}
782
783static void sig_handler(int sig __maybe_unused)
784{
785 session_done = 1;
786}
787
788static int __cmd_script(struct perf_script *script)
789{
790 int ret;
791
792 signal(SIGINT, sig_handler);
793
794
795 if (script->show_task_events) {
796 script->tool.comm = process_comm_event;
797 script->tool.fork = process_fork_event;
798 script->tool.exit = process_exit_event;
799 }
800 if (script->show_mmap_events) {
801 script->tool.mmap = process_mmap_event;
802 script->tool.mmap2 = process_mmap2_event;
803 }
804
805 ret = perf_session__process_events(script->session, &script->tool);
806
807 if (debug_mode)
808 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
809
810 return ret;
811}
812
813struct script_spec {
814 struct list_head node;
815 struct scripting_ops *ops;
816 char spec[0];
817};
818
819static LIST_HEAD(script_specs);
820
821static struct script_spec *script_spec__new(const char *spec,
822 struct scripting_ops *ops)
823{
824 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
825
826 if (s != NULL) {
827 strcpy(s->spec, spec);
828 s->ops = ops;
829 }
830
831 return s;
832}
833
834static void script_spec__add(struct script_spec *s)
835{
836 list_add_tail(&s->node, &script_specs);
837}
838
839static struct script_spec *script_spec__find(const char *spec)
840{
841 struct script_spec *s;
842
843 list_for_each_entry(s, &script_specs, node)
844 if (strcasecmp(s->spec, spec) == 0)
845 return s;
846 return NULL;
847}
848
849static struct script_spec *script_spec__findnew(const char *spec,
850 struct scripting_ops *ops)
851{
852 struct script_spec *s = script_spec__find(spec);
853
854 if (s)
855 return s;
856
857 s = script_spec__new(spec, ops);
858 if (!s)
859 return NULL;
860
861 script_spec__add(s);
862
863 return s;
864}
865
866int script_spec_register(const char *spec, struct scripting_ops *ops)
867{
868 struct script_spec *s;
869
870 s = script_spec__find(spec);
871 if (s)
872 return -1;
873
874 s = script_spec__findnew(spec, ops);
875 if (!s)
876 return -1;
877
878 return 0;
879}
880
881static struct scripting_ops *script_spec__lookup(const char *spec)
882{
883 struct script_spec *s = script_spec__find(spec);
884 if (!s)
885 return NULL;
886
887 return s->ops;
888}
889
890static void list_available_languages(void)
891{
892 struct script_spec *s;
893
894 fprintf(stderr, "\n");
895 fprintf(stderr, "Scripting language extensions (used in "
896 "perf script -s [spec:]script.[spec]):\n\n");
897
898 list_for_each_entry(s, &script_specs, node)
899 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
900
901 fprintf(stderr, "\n");
902}
903
904static int parse_scriptname(const struct option *opt __maybe_unused,
905 const char *str, int unset __maybe_unused)
906{
907 char spec[PATH_MAX];
908 const char *script, *ext;
909 int len;
910
911 if (strcmp(str, "lang") == 0) {
912 list_available_languages();
913 exit(0);
914 }
915
916 script = strchr(str, ':');
917 if (script) {
918 len = script - str;
919 if (len >= PATH_MAX) {
920 fprintf(stderr, "invalid language specifier");
921 return -1;
922 }
923 strncpy(spec, str, len);
924 spec[len] = '\0';
925 scripting_ops = script_spec__lookup(spec);
926 if (!scripting_ops) {
927 fprintf(stderr, "invalid language specifier");
928 return -1;
929 }
930 script++;
931 } else {
932 script = str;
933 ext = strrchr(script, '.');
934 if (!ext) {
935 fprintf(stderr, "invalid script extension");
936 return -1;
937 }
938 scripting_ops = script_spec__lookup(++ext);
939 if (!scripting_ops) {
940 fprintf(stderr, "invalid script extension");
941 return -1;
942 }
943 }
944
945 script_name = strdup(script);
946
947 return 0;
948}
949
950static int parse_output_fields(const struct option *opt __maybe_unused,
951 const char *arg, int unset __maybe_unused)
952{
953 char *tok;
954 int i, imax = ARRAY_SIZE(all_output_options);
955 int j;
956 int rc = 0;
957 char *str = strdup(arg);
958 int type = -1;
959
960 if (!str)
961 return -ENOMEM;
962
963
964
965
966
967 tok = strchr(str, ':');
968 if (tok) {
969 *tok = '\0';
970 tok++;
971 if (!strcmp(str, "hw"))
972 type = PERF_TYPE_HARDWARE;
973 else if (!strcmp(str, "sw"))
974 type = PERF_TYPE_SOFTWARE;
975 else if (!strcmp(str, "trace"))
976 type = PERF_TYPE_TRACEPOINT;
977 else if (!strcmp(str, "raw"))
978 type = PERF_TYPE_RAW;
979 else {
980 fprintf(stderr, "Invalid event type in field string.\n");
981 rc = -EINVAL;
982 goto out;
983 }
984
985 if (output[type].user_set)
986 pr_warning("Overriding previous field request for %s events.\n",
987 event_type(type));
988
989 output[type].fields = 0;
990 output[type].user_set = true;
991 output[type].wildcard_set = false;
992
993 } else {
994 tok = str;
995 if (strlen(str) == 0) {
996 fprintf(stderr,
997 "Cannot set fields to 'none' for all event types.\n");
998 rc = -EINVAL;
999 goto out;
1000 }
1001
1002 if (output_set_by_user())
1003 pr_warning("Overriding previous field request for all events.\n");
1004
1005 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1006 output[j].fields = 0;
1007 output[j].user_set = true;
1008 output[j].wildcard_set = true;
1009 }
1010 }
1011
1012 tok = strtok(tok, ",");
1013 while (tok) {
1014 for (i = 0; i < imax; ++i) {
1015 if (strcmp(tok, all_output_options[i].str) == 0)
1016 break;
1017 }
1018 if (i == imax) {
1019 fprintf(stderr, "Invalid field requested.\n");
1020 rc = -EINVAL;
1021 goto out;
1022 }
1023
1024 if (type == -1) {
1025
1026
1027
1028 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1029 if (output[j].invalid_fields & all_output_options[i].field) {
1030 pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
1031 all_output_options[i].str, event_type(j));
1032 } else
1033 output[j].fields |= all_output_options[i].field;
1034 }
1035 } else {
1036 if (output[type].invalid_fields & all_output_options[i].field) {
1037 fprintf(stderr, "\'%s\' not valid for %s events.\n",
1038 all_output_options[i].str, event_type(type));
1039
1040 rc = -EINVAL;
1041 goto out;
1042 }
1043 output[type].fields |= all_output_options[i].field;
1044 }
1045
1046 tok = strtok(NULL, ",");
1047 }
1048
1049 if (type >= 0) {
1050 if (output[type].fields == 0) {
1051 pr_debug("No fields requested for %s type. "
1052 "Events will not be displayed.\n", event_type(type));
1053 }
1054 }
1055
1056out:
1057 free(str);
1058 return rc;
1059}
1060
1061
1062static int is_directory(const char *base_path, const struct dirent *dent)
1063{
1064 char path[PATH_MAX];
1065 struct stat st;
1066
1067 sprintf(path, "%s/%s", base_path, dent->d_name);
1068 if (stat(path, &st))
1069 return 0;
1070
1071 return S_ISDIR(st.st_mode);
1072}
1073
1074#define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\
1075 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \
1076 lang_next) \
1077 if ((lang_dirent.d_type == DT_DIR || \
1078 (lang_dirent.d_type == DT_UNKNOWN && \
1079 is_directory(scripts_path, &lang_dirent))) && \
1080 (strcmp(lang_dirent.d_name, ".")) && \
1081 (strcmp(lang_dirent.d_name, "..")))
1082
1083#define for_each_script(lang_path, lang_dir, script_dirent, script_next)\
1084 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \
1085 script_next) \
1086 if (script_dirent.d_type != DT_DIR && \
1087 (script_dirent.d_type != DT_UNKNOWN || \
1088 !is_directory(lang_path, &script_dirent)))
1089
1090
1091#define RECORD_SUFFIX "-record"
1092#define REPORT_SUFFIX "-report"
1093
1094struct script_desc {
1095 struct list_head node;
1096 char *name;
1097 char *half_liner;
1098 char *args;
1099};
1100
1101static LIST_HEAD(script_descs);
1102
1103static struct script_desc *script_desc__new(const char *name)
1104{
1105 struct script_desc *s = zalloc(sizeof(*s));
1106
1107 if (s != NULL && name)
1108 s->name = strdup(name);
1109
1110 return s;
1111}
1112
1113static void script_desc__delete(struct script_desc *s)
1114{
1115 zfree(&s->name);
1116 zfree(&s->half_liner);
1117 zfree(&s->args);
1118 free(s);
1119}
1120
1121static void script_desc__add(struct script_desc *s)
1122{
1123 list_add_tail(&s->node, &script_descs);
1124}
1125
1126static struct script_desc *script_desc__find(const char *name)
1127{
1128 struct script_desc *s;
1129
1130 list_for_each_entry(s, &script_descs, node)
1131 if (strcasecmp(s->name, name) == 0)
1132 return s;
1133 return NULL;
1134}
1135
1136static struct script_desc *script_desc__findnew(const char *name)
1137{
1138 struct script_desc *s = script_desc__find(name);
1139
1140 if (s)
1141 return s;
1142
1143 s = script_desc__new(name);
1144 if (!s)
1145 goto out_delete_desc;
1146
1147 script_desc__add(s);
1148
1149 return s;
1150
1151out_delete_desc:
1152 script_desc__delete(s);
1153
1154 return NULL;
1155}
1156
1157static const char *ends_with(const char *str, const char *suffix)
1158{
1159 size_t suffix_len = strlen(suffix);
1160 const char *p = str;
1161
1162 if (strlen(str) > suffix_len) {
1163 p = str + strlen(str) - suffix_len;
1164 if (!strncmp(p, suffix, suffix_len))
1165 return p;
1166 }
1167
1168 return NULL;
1169}
1170
1171static int read_script_info(struct script_desc *desc, const char *filename)
1172{
1173 char line[BUFSIZ], *p;
1174 FILE *fp;
1175
1176 fp = fopen(filename, "r");
1177 if (!fp)
1178 return -1;
1179
1180 while (fgets(line, sizeof(line), fp)) {
1181 p = ltrim(line);
1182 if (strlen(p) == 0)
1183 continue;
1184 if (*p != '#')
1185 continue;
1186 p++;
1187 if (strlen(p) && *p == '!')
1188 continue;
1189
1190 p = ltrim(p);
1191 if (strlen(p) && p[strlen(p) - 1] == '\n')
1192 p[strlen(p) - 1] = '\0';
1193
1194 if (!strncmp(p, "description:", strlen("description:"))) {
1195 p += strlen("description:");
1196 desc->half_liner = strdup(ltrim(p));
1197 continue;
1198 }
1199
1200 if (!strncmp(p, "args:", strlen("args:"))) {
1201 p += strlen("args:");
1202 desc->args = strdup(ltrim(p));
1203 continue;
1204 }
1205 }
1206
1207 fclose(fp);
1208
1209 return 0;
1210}
1211
1212static char *get_script_root(struct dirent *script_dirent, const char *suffix)
1213{
1214 char *script_root, *str;
1215
1216 script_root = strdup(script_dirent->d_name);
1217 if (!script_root)
1218 return NULL;
1219
1220 str = (char *)ends_with(script_root, suffix);
1221 if (!str) {
1222 free(script_root);
1223 return NULL;
1224 }
1225
1226 *str = '\0';
1227 return script_root;
1228}
1229
1230static int list_available_scripts(const struct option *opt __maybe_unused,
1231 const char *s __maybe_unused,
1232 int unset __maybe_unused)
1233{
1234 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1235 char scripts_path[MAXPATHLEN];
1236 DIR *scripts_dir, *lang_dir;
1237 char script_path[MAXPATHLEN];
1238 char lang_path[MAXPATHLEN];
1239 struct script_desc *desc;
1240 char first_half[BUFSIZ];
1241 char *script_root;
1242
1243 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1244
1245 scripts_dir = opendir(scripts_path);
1246 if (!scripts_dir)
1247 return -1;
1248
1249 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1250 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1251 lang_dirent.d_name);
1252 lang_dir = opendir(lang_path);
1253 if (!lang_dir)
1254 continue;
1255
1256 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1257 script_root = get_script_root(&script_dirent, REPORT_SUFFIX);
1258 if (script_root) {
1259 desc = script_desc__findnew(script_root);
1260 snprintf(script_path, MAXPATHLEN, "%s/%s",
1261 lang_path, script_dirent.d_name);
1262 read_script_info(desc, script_path);
1263 free(script_root);
1264 }
1265 }
1266 }
1267
1268 fprintf(stdout, "List of available trace scripts:\n");
1269 list_for_each_entry(desc, &script_descs, node) {
1270 sprintf(first_half, "%s %s", desc->name,
1271 desc->args ? desc->args : "");
1272 fprintf(stdout, " %-36s %s\n", first_half,
1273 desc->half_liner ? desc->half_liner : "");
1274 }
1275
1276 exit(0);
1277}
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288static int check_ev_match(char *dir_name, char *scriptname,
1289 struct perf_session *session)
1290{
1291 char filename[MAXPATHLEN], evname[128];
1292 char line[BUFSIZ], *p;
1293 struct perf_evsel *pos;
1294 int match, len;
1295 FILE *fp;
1296
1297 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname);
1298
1299 fp = fopen(filename, "r");
1300 if (!fp)
1301 return -1;
1302
1303 while (fgets(line, sizeof(line), fp)) {
1304 p = ltrim(line);
1305 if (*p == '#')
1306 continue;
1307
1308 while (strlen(p)) {
1309 p = strstr(p, "-e");
1310 if (!p)
1311 break;
1312
1313 p += 2;
1314 p = ltrim(p);
1315 len = strcspn(p, " \t");
1316 if (!len)
1317 break;
1318
1319 snprintf(evname, len + 1, "%s", p);
1320
1321 match = 0;
1322 evlist__for_each(session->evlist, pos) {
1323 if (!strcmp(perf_evsel__name(pos), evname)) {
1324 match = 1;
1325 break;
1326 }
1327 }
1328
1329 if (!match) {
1330 fclose(fp);
1331 return -1;
1332 }
1333 }
1334 }
1335
1336 fclose(fp);
1337 return 0;
1338}
1339
1340
1341
1342
1343
1344
1345
1346
1347int find_scripts(char **scripts_array, char **scripts_path_array)
1348{
1349 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1350 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
1351 DIR *scripts_dir, *lang_dir;
1352 struct perf_session *session;
1353 struct perf_data_file file = {
1354 .path = input_name,
1355 .mode = PERF_DATA_MODE_READ,
1356 };
1357 char *temp;
1358 int i = 0;
1359
1360 session = perf_session__new(&file, false, NULL);
1361 if (!session)
1362 return -1;
1363
1364 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1365
1366 scripts_dir = opendir(scripts_path);
1367 if (!scripts_dir) {
1368 perf_session__delete(session);
1369 return -1;
1370 }
1371
1372 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1373 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path,
1374 lang_dirent.d_name);
1375#ifdef NO_LIBPERL
1376 if (strstr(lang_path, "perl"))
1377 continue;
1378#endif
1379#ifdef NO_LIBPYTHON
1380 if (strstr(lang_path, "python"))
1381 continue;
1382#endif
1383
1384 lang_dir = opendir(lang_path);
1385 if (!lang_dir)
1386 continue;
1387
1388 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1389
1390 if (strstr(script_dirent.d_name, "top."))
1391 continue;
1392 sprintf(scripts_path_array[i], "%s/%s", lang_path,
1393 script_dirent.d_name);
1394 temp = strchr(script_dirent.d_name, '.');
1395 snprintf(scripts_array[i],
1396 (temp - script_dirent.d_name) + 1,
1397 "%s", script_dirent.d_name);
1398
1399 if (check_ev_match(lang_path,
1400 scripts_array[i], session))
1401 continue;
1402
1403 i++;
1404 }
1405 closedir(lang_dir);
1406 }
1407
1408 closedir(scripts_dir);
1409 perf_session__delete(session);
1410 return i;
1411}
1412
1413static char *get_script_path(const char *script_root, const char *suffix)
1414{
1415 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1416 char scripts_path[MAXPATHLEN];
1417 char script_path[MAXPATHLEN];
1418 DIR *scripts_dir, *lang_dir;
1419 char lang_path[MAXPATHLEN];
1420 char *__script_root;
1421
1422 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1423
1424 scripts_dir = opendir(scripts_path);
1425 if (!scripts_dir)
1426 return NULL;
1427
1428 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1429 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1430 lang_dirent.d_name);
1431 lang_dir = opendir(lang_path);
1432 if (!lang_dir)
1433 continue;
1434
1435 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1436 __script_root = get_script_root(&script_dirent, suffix);
1437 if (__script_root && !strcmp(script_root, __script_root)) {
1438 free(__script_root);
1439 closedir(lang_dir);
1440 closedir(scripts_dir);
1441 snprintf(script_path, MAXPATHLEN, "%s/%s",
1442 lang_path, script_dirent.d_name);
1443 return strdup(script_path);
1444 }
1445 free(__script_root);
1446 }
1447 closedir(lang_dir);
1448 }
1449 closedir(scripts_dir);
1450
1451 return NULL;
1452}
1453
1454static bool is_top_script(const char *script_path)
1455{
1456 return ends_with(script_path, "top") == NULL ? false : true;
1457}
1458
1459static int has_required_arg(char *script_path)
1460{
1461 struct script_desc *desc;
1462 int n_args = 0;
1463 char *p;
1464
1465 desc = script_desc__new(NULL);
1466
1467 if (read_script_info(desc, script_path))
1468 goto out;
1469
1470 if (!desc->args)
1471 goto out;
1472
1473 for (p = desc->args; *p; p++)
1474 if (*p == '<')
1475 n_args++;
1476out:
1477 script_desc__delete(desc);
1478
1479 return n_args;
1480}
1481
1482static int have_cmd(int argc, const char **argv)
1483{
1484 char **__argv = malloc(sizeof(const char *) * argc);
1485
1486 if (!__argv) {
1487 pr_err("malloc failed\n");
1488 return -1;
1489 }
1490
1491 memcpy(__argv, argv, sizeof(const char *) * argc);
1492 argc = parse_options(argc, (const char **)__argv, record_options,
1493 NULL, PARSE_OPT_STOP_AT_NON_OPTION);
1494 free(__argv);
1495
1496 system_wide = (argc == 0);
1497
1498 return 0;
1499}
1500
1501int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
1502{
1503 bool show_full_info = false;
1504 bool header = false;
1505 bool header_only = false;
1506 bool script_started = false;
1507 char *rec_script_path = NULL;
1508 char *rep_script_path = NULL;
1509 struct perf_session *session;
1510 char *script_path = NULL;
1511 const char **__argv;
1512 int i, j, err = 0;
1513 struct perf_script script = {
1514 .tool = {
1515 .sample = process_sample_event,
1516 .mmap = perf_event__process_mmap,
1517 .mmap2 = perf_event__process_mmap2,
1518 .comm = perf_event__process_comm,
1519 .exit = perf_event__process_exit,
1520 .fork = perf_event__process_fork,
1521 .attr = process_attr,
1522 .tracing_data = perf_event__process_tracing_data,
1523 .build_id = perf_event__process_build_id,
1524 .ordered_events = true,
1525 .ordering_requires_timestamps = true,
1526 },
1527 };
1528 const struct option options[] = {
1529 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1530 "dump raw trace in ASCII"),
1531 OPT_INCR('v', "verbose", &verbose,
1532 "be more verbose (show symbol address, etc)"),
1533 OPT_BOOLEAN('L', "Latency", &latency_format,
1534 "show latency attributes (irqs/preemption disabled, etc)"),
1535 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
1536 list_available_scripts),
1537 OPT_CALLBACK('s', "script", NULL, "name",
1538 "script file name (lang:script name, script name, or *)",
1539 parse_scriptname),
1540 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
1541 "generate perf-script.xx script in specified language"),
1542 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1543 OPT_BOOLEAN('d', "debug-mode", &debug_mode,
1544 "do various checks like samples ordering and lost events"),
1545 OPT_BOOLEAN(0, "header", &header, "Show data header."),
1546 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."),
1547 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1548 "file", "vmlinux pathname"),
1549 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1550 "file", "kallsyms pathname"),
1551 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
1552 "When printing symbols do not display call chain"),
1553 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
1554 "Look for files with symbols relative to this directory"),
1555 OPT_CALLBACK('f', "fields", NULL, "str",
1556 "comma separated output fields prepend with 'type:'. "
1557 "Valid types: hw,sw,trace,raw. "
1558 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
1559 "addr,symoff,period", parse_output_fields),
1560 OPT_BOOLEAN('a', "all-cpus", &system_wide,
1561 "system-wide collection from all CPUs"),
1562 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1563 "only consider these symbols"),
1564 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
1565 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1566 "only display events for these comms"),
1567 OPT_BOOLEAN('I', "show-info", &show_full_info,
1568 "display extended information from perf.data file"),
1569 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
1570 "Show the path of [kernel.kallsyms]"),
1571 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events,
1572 "Show the fork/comm/exit events"),
1573 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
1574 "Show the mmap events"),
1575 OPT_END()
1576 };
1577 const char * const script_usage[] = {
1578 "perf script [<options>]",
1579 "perf script [<options>] record <script> [<record-options>] <command>",
1580 "perf script [<options>] report <script> [script-args]",
1581 "perf script [<options>] <script> [<record-options>] <command>",
1582 "perf script [<options>] <top-script> [script-args]",
1583 NULL
1584 };
1585 struct perf_data_file file = {
1586 .mode = PERF_DATA_MODE_READ,
1587 };
1588
1589 setup_scripting();
1590
1591 argc = parse_options(argc, argv, options, script_usage,
1592 PARSE_OPT_STOP_AT_NON_OPTION);
1593
1594 file.path = input_name;
1595
1596 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
1597 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
1598 if (!rec_script_path)
1599 return cmd_record(argc, argv, NULL);
1600 }
1601
1602 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
1603 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
1604 if (!rep_script_path) {
1605 fprintf(stderr,
1606 "Please specify a valid report script"
1607 "(see 'perf script -l' for listing)\n");
1608 return -1;
1609 }
1610 }
1611
1612
1613 perf_set_argv_exec_path(perf_exec_path());
1614
1615 if (argc && !script_name && !rec_script_path && !rep_script_path) {
1616 int live_pipe[2];
1617 int rep_args;
1618 pid_t pid;
1619
1620 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
1621 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
1622
1623 if (!rec_script_path && !rep_script_path) {
1624 fprintf(stderr, " Couldn't find script %s\n\n See perf"
1625 " script -l for available scripts.\n", argv[0]);
1626 usage_with_options(script_usage, options);
1627 }
1628
1629 if (is_top_script(argv[0])) {
1630 rep_args = argc - 1;
1631 } else {
1632 int rec_args;
1633
1634 rep_args = has_required_arg(rep_script_path);
1635 rec_args = (argc - 1) - rep_args;
1636 if (rec_args < 0) {
1637 fprintf(stderr, " %s script requires options."
1638 "\n\n See perf script -l for available "
1639 "scripts and options.\n", argv[0]);
1640 usage_with_options(script_usage, options);
1641 }
1642 }
1643
1644 if (pipe(live_pipe) < 0) {
1645 perror("failed to create pipe");
1646 return -1;
1647 }
1648
1649 pid = fork();
1650 if (pid < 0) {
1651 perror("failed to fork");
1652 return -1;
1653 }
1654
1655 if (!pid) {
1656 j = 0;
1657
1658 dup2(live_pipe[1], 1);
1659 close(live_pipe[0]);
1660
1661 if (is_top_script(argv[0])) {
1662 system_wide = true;
1663 } else if (!system_wide) {
1664 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
1665 err = -1;
1666 goto out;
1667 }
1668 }
1669
1670 __argv = malloc((argc + 6) * sizeof(const char *));
1671 if (!__argv) {
1672 pr_err("malloc failed\n");
1673 err = -ENOMEM;
1674 goto out;
1675 }
1676
1677 __argv[j++] = "/bin/sh";
1678 __argv[j++] = rec_script_path;
1679 if (system_wide)
1680 __argv[j++] = "-a";
1681 __argv[j++] = "-q";
1682 __argv[j++] = "-o";
1683 __argv[j++] = "-";
1684 for (i = rep_args + 1; i < argc; i++)
1685 __argv[j++] = argv[i];
1686 __argv[j++] = NULL;
1687
1688 execvp("/bin/sh", (char **)__argv);
1689 free(__argv);
1690 exit(-1);
1691 }
1692
1693 dup2(live_pipe[0], 0);
1694 close(live_pipe[1]);
1695
1696 __argv = malloc((argc + 4) * sizeof(const char *));
1697 if (!__argv) {
1698 pr_err("malloc failed\n");
1699 err = -ENOMEM;
1700 goto out;
1701 }
1702
1703 j = 0;
1704 __argv[j++] = "/bin/sh";
1705 __argv[j++] = rep_script_path;
1706 for (i = 1; i < rep_args + 1; i++)
1707 __argv[j++] = argv[i];
1708 __argv[j++] = "-i";
1709 __argv[j++] = "-";
1710 __argv[j++] = NULL;
1711
1712 execvp("/bin/sh", (char **)__argv);
1713 free(__argv);
1714 exit(-1);
1715 }
1716
1717 if (rec_script_path)
1718 script_path = rec_script_path;
1719 if (rep_script_path)
1720 script_path = rep_script_path;
1721
1722 if (script_path) {
1723 j = 0;
1724
1725 if (!rec_script_path)
1726 system_wide = false;
1727 else if (!system_wide) {
1728 if (have_cmd(argc - 1, &argv[1]) != 0) {
1729 err = -1;
1730 goto out;
1731 }
1732 }
1733
1734 __argv = malloc((argc + 2) * sizeof(const char *));
1735 if (!__argv) {
1736 pr_err("malloc failed\n");
1737 err = -ENOMEM;
1738 goto out;
1739 }
1740
1741 __argv[j++] = "/bin/sh";
1742 __argv[j++] = script_path;
1743 if (system_wide)
1744 __argv[j++] = "-a";
1745 for (i = 2; i < argc; i++)
1746 __argv[j++] = argv[i];
1747 __argv[j++] = NULL;
1748
1749 execvp("/bin/sh", (char **)__argv);
1750 free(__argv);
1751 exit(-1);
1752 }
1753
1754 if (!script_name)
1755 setup_pager();
1756
1757 session = perf_session__new(&file, false, &script.tool);
1758 if (session == NULL)
1759 return -1;
1760
1761 if (header || header_only) {
1762 perf_session__fprintf_info(session, stdout, show_full_info);
1763 if (header_only)
1764 goto out_delete;
1765 }
1766
1767 if (symbol__init(&session->header.env) < 0)
1768 goto out_delete;
1769
1770 script.session = session;
1771
1772 if (cpu_list) {
1773 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
1774 if (err < 0)
1775 goto out_delete;
1776 }
1777
1778 if (!no_callchain)
1779 symbol_conf.use_callchain = true;
1780 else
1781 symbol_conf.use_callchain = false;
1782
1783 if (generate_script_lang) {
1784 struct stat perf_stat;
1785 int input;
1786
1787 if (output_set_by_user()) {
1788 fprintf(stderr,
1789 "custom fields not supported for generated scripts");
1790 err = -EINVAL;
1791 goto out_delete;
1792 }
1793
1794 input = open(file.path, O_RDONLY);
1795 if (input < 0) {
1796 err = -errno;
1797 perror("failed to open file");
1798 goto out_delete;
1799 }
1800
1801 err = fstat(input, &perf_stat);
1802 if (err < 0) {
1803 perror("failed to stat file");
1804 goto out_delete;
1805 }
1806
1807 if (!perf_stat.st_size) {
1808 fprintf(stderr, "zero-sized file, nothing to do!\n");
1809 goto out_delete;
1810 }
1811
1812 scripting_ops = script_spec__lookup(generate_script_lang);
1813 if (!scripting_ops) {
1814 fprintf(stderr, "invalid language specifier");
1815 err = -ENOENT;
1816 goto out_delete;
1817 }
1818
1819 err = scripting_ops->generate_script(session->tevent.pevent,
1820 "perf-script");
1821 goto out_delete;
1822 }
1823
1824 if (script_name) {
1825 err = scripting_ops->start_script(script_name, argc, argv);
1826 if (err)
1827 goto out_delete;
1828 pr_debug("perf script started with script %s\n\n", script_name);
1829 script_started = true;
1830 }
1831
1832
1833 err = perf_session__check_output_opt(session);
1834 if (err < 0)
1835 goto out_delete;
1836
1837 err = __cmd_script(&script);
1838
1839 flush_scripting();
1840
1841out_delete:
1842 perf_session__delete(session);
1843
1844 if (script_started)
1845 cleanup_scripting();
1846out:
1847 return err;
1848}
1849
