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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 <linux/bitmap.h>
18
19static char const *script_name;
20static char const *generate_script_lang;
21static bool debug_mode;
22static u64 last_timestamp;
23static u64 nr_unordered;
24extern const struct option record_options[];
25static bool no_callchain;
26static bool show_full_info;
27static bool system_wide;
28static const char *cpu_list;
29static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
30
31enum perf_output_field {
32 PERF_OUTPUT_COMM = 1U << 0,
33 PERF_OUTPUT_TID = 1U << 1,
34 PERF_OUTPUT_PID = 1U << 2,
35 PERF_OUTPUT_TIME = 1U << 3,
36 PERF_OUTPUT_CPU = 1U << 4,
37 PERF_OUTPUT_EVNAME = 1U << 5,
38 PERF_OUTPUT_TRACE = 1U << 6,
39 PERF_OUTPUT_IP = 1U << 7,
40 PERF_OUTPUT_SYM = 1U << 8,
41 PERF_OUTPUT_DSO = 1U << 9,
42 PERF_OUTPUT_ADDR = 1U << 10,
43 PERF_OUTPUT_SYMOFFSET = 1U << 11,
44};
45
46struct output_option {
47 const char *str;
48 enum perf_output_field field;
49} all_output_options[] = {
50 {.str = "comm", .field = PERF_OUTPUT_COMM},
51 {.str = "tid", .field = PERF_OUTPUT_TID},
52 {.str = "pid", .field = PERF_OUTPUT_PID},
53 {.str = "time", .field = PERF_OUTPUT_TIME},
54 {.str = "cpu", .field = PERF_OUTPUT_CPU},
55 {.str = "event", .field = PERF_OUTPUT_EVNAME},
56 {.str = "trace", .field = PERF_OUTPUT_TRACE},
57 {.str = "ip", .field = PERF_OUTPUT_IP},
58 {.str = "sym", .field = PERF_OUTPUT_SYM},
59 {.str = "dso", .field = PERF_OUTPUT_DSO},
60 {.str = "addr", .field = PERF_OUTPUT_ADDR},
61 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
62};
63
64/* default set to maintain compatibility with current format */
65static struct {
66 bool user_set;
67 bool wildcard_set;
68 u64 fields;
69 u64 invalid_fields;
70} output[PERF_TYPE_MAX] = {
71
72 [PERF_TYPE_HARDWARE] = {
73 .user_set = false,
74
75 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
76 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
77 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
78 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
79
80 .invalid_fields = PERF_OUTPUT_TRACE,
81 },
82
83 [PERF_TYPE_SOFTWARE] = {
84 .user_set = false,
85
86 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
87 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
88 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
89 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
90
91 .invalid_fields = PERF_OUTPUT_TRACE,
92 },
93
94 [PERF_TYPE_TRACEPOINT] = {
95 .user_set = false,
96
97 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
98 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
99 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE,
100 },
101
102 [PERF_TYPE_RAW] = {
103 .user_set = false,
104
105 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
106 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
107 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
108 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
109
110 .invalid_fields = PERF_OUTPUT_TRACE,
111 },
112};
113
114static bool output_set_by_user(void)
115{
116 int j;
117 for (j = 0; j < PERF_TYPE_MAX; ++j) {
118 if (output[j].user_set)
119 return true;
120 }
121 return false;
122}
123
124static const char *output_field2str(enum perf_output_field field)
125{
126 int i, imax = ARRAY_SIZE(all_output_options);
127 const char *str = "";
128
129 for (i = 0; i < imax; ++i) {
130 if (all_output_options[i].field == field) {
131 str = all_output_options[i].str;
132 break;
133 }
134 }
135 return str;
136}
137
138#define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x)
139
140static int perf_event_attr__check_stype(struct perf_event_attr *attr,
141 u64 sample_type, const char *sample_msg,
142 enum perf_output_field field)
143{
144 int type = attr->type;
145 const char *evname;
146
147 if (attr->sample_type & sample_type)
148 return 0;
149
150 if (output[type].user_set) {
151 evname = __event_name(attr->type, attr->config);
152 pr_err("Samples for '%s' event do not have %s attribute set. "
153 "Cannot print '%s' field.\n",
154 evname, sample_msg, output_field2str(field));
155 return -1;
156 }
157
158 /* user did not ask for it explicitly so remove from the default list */
159 output[type].fields &= ~field;
160 evname = __event_name(attr->type, attr->config);
161 pr_debug("Samples for '%s' event do not have %s attribute set. "
162 "Skipping '%s' field.\n",
163 evname, sample_msg, output_field2str(field));
164
165 return 0;
166}
167
168static int perf_evsel__check_attr(struct perf_evsel *evsel,
169 struct perf_session *session)
170{
171 struct perf_event_attr *attr = &evsel->attr;
172
173 if (PRINT_FIELD(TRACE) &&
174 !perf_session__has_traces(session, "record -R"))
175 return -EINVAL;
176
177 if (PRINT_FIELD(IP)) {
178 if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP",
179 PERF_OUTPUT_IP))
180 return -EINVAL;
181
182 if (!no_callchain &&
183 !(attr->sample_type & PERF_SAMPLE_CALLCHAIN))
184 symbol_conf.use_callchain = false;
185 }
186
187 if (PRINT_FIELD(ADDR) &&
188 perf_event_attr__check_stype(attr, PERF_SAMPLE_ADDR, "ADDR",
189 PERF_OUTPUT_ADDR))
190 return -EINVAL;
191
192 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
193 pr_err("Display of symbols requested but neither sample IP nor "
194 "sample address\nis selected. Hence, no addresses to convert "
195 "to symbols.\n");
196 return -EINVAL;
197 }
198 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) {
199 pr_err("Display of offsets requested but symbol is not"
200 "selected.\n");
201 return -EINVAL;
202 }
203 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
204 pr_err("Display of DSO requested but neither sample IP nor "
205 "sample address\nis selected. Hence, no addresses to convert "
206 "to DSO.\n");
207 return -EINVAL;
208 }
209
210 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
211 perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID",
212 PERF_OUTPUT_TID|PERF_OUTPUT_PID))
213 return -EINVAL;
214
215 if (PRINT_FIELD(TIME) &&
216 perf_event_attr__check_stype(attr, PERF_SAMPLE_TIME, "TIME",
217 PERF_OUTPUT_TIME))
218 return -EINVAL;
219
220 if (PRINT_FIELD(CPU) &&
221 perf_event_attr__check_stype(attr, PERF_SAMPLE_CPU, "CPU",
222 PERF_OUTPUT_CPU))
223 return -EINVAL;
224
225 return 0;
226}
227
228/*
229 * verify all user requested events exist and the samples
230 * have the expected data
231 */
232static int perf_session__check_output_opt(struct perf_session *session)
233{
234 int j;
235 struct perf_evsel *evsel;
236
237 for (j = 0; j < PERF_TYPE_MAX; ++j) {
238 evsel = perf_session__find_first_evtype(session, j);
239
240 /*
241 * even if fields is set to 0 (ie., show nothing) event must
242 * exist if user explicitly includes it on the command line
243 */
244 if (!evsel && output[j].user_set && !output[j].wildcard_set) {
245 pr_err("%s events do not exist. "
246 "Remove corresponding -f option to proceed.\n",
247 event_type(j));
248 return -1;
249 }
250
251 if (evsel && output[j].fields &&
252 perf_evsel__check_attr(evsel, session))
253 return -1;
254 }
255
256 return 0;
257}
258
259static void print_sample_start(struct perf_sample *sample,
260 struct thread *thread,
261 struct perf_event_attr *attr)
262{
263 int type;
264 struct event_format *event;
265 const char *evname = NULL;
266 unsigned long secs;
267 unsigned long usecs;
268 unsigned long long nsecs;
269
270 if (PRINT_FIELD(COMM)) {
271 if (latency_format)
272 printf("%8.8s ", thread->comm);
273 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
274 printf("%s ", thread->comm);
275 else
276 printf("%16s ", thread->comm);
277 }
278
279 if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
280 printf("%5d/%-5d ", sample->pid, sample->tid);
281 else if (PRINT_FIELD(PID))
282 printf("%5d ", sample->pid);
283 else if (PRINT_FIELD(TID))
284 printf("%5d ", sample->tid);
285
286 if (PRINT_FIELD(CPU)) {
287 if (latency_format)
288 printf("%3d ", sample->cpu);
289 else
290 printf("[%03d] ", sample->cpu);
291 }
292
293 if (PRINT_FIELD(TIME)) {
294 nsecs = sample->time;
295 secs = nsecs / NSECS_PER_SEC;
296 nsecs -= secs * NSECS_PER_SEC;
297 usecs = nsecs / NSECS_PER_USEC;
298 printf("%5lu.%06lu: ", secs, usecs);
299 }
300
301 if (PRINT_FIELD(EVNAME)) {
302 if (attr->type == PERF_TYPE_TRACEPOINT) {
303 type = trace_parse_common_type(sample->raw_data);
304 event = trace_find_event(type);
305 if (event)
306 evname = event->name;
307 } else
308 evname = __event_name(attr->type, attr->config);
309
310 printf("%s: ", evname ? evname : "[unknown]");
311 }
312}
313
314static bool is_bts_event(struct perf_event_attr *attr)
315{
316 return ((attr->type == PERF_TYPE_HARDWARE) &&
317 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
318 (attr->sample_period == 1));
319}
320
321static bool sample_addr_correlates_sym(struct perf_event_attr *attr)
322{
323 if ((attr->type == PERF_TYPE_SOFTWARE) &&
324 ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) ||
325 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) ||
326 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)))
327 return true;
328
329 if (is_bts_event(attr))
330 return true;
331
332 return false;
333}
334
335static void print_sample_addr(union perf_event *event,
336 struct perf_sample *sample,
337 struct machine *machine,
338 struct thread *thread,
339 struct perf_event_attr *attr)
340{
341 struct addr_location al;
342 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
343
344 printf("%16" PRIx64, sample->addr);
345
346 if (!sample_addr_correlates_sym(attr))
347 return;
348
349 thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
350 sample->addr, &al);
351 if (!al.map)
352 thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE,
353 sample->addr, &al);
354
355 al.cpu = sample->cpu;
356 al.sym = NULL;
357
358 if (al.map)
359 al.sym = map__find_symbol(al.map, al.addr, NULL);
360
361 if (PRINT_FIELD(SYM)) {
362 printf(" ");
363 if (PRINT_FIELD(SYMOFFSET))
364 symbol__fprintf_symname_offs(al.sym, &al, stdout);
365 else
366 symbol__fprintf_symname(al.sym, stdout);
367 }
368
369 if (PRINT_FIELD(DSO)) {
370 printf(" (");
371 map__fprintf_dsoname(al.map, stdout);
372 printf(")");
373 }
374}
375
376static void print_sample_bts(union perf_event *event,
377 struct perf_sample *sample,
378 struct perf_evsel *evsel,
379 struct machine *machine,
380 struct thread *thread)
381{
382 struct perf_event_attr *attr = &evsel->attr;
383
384 /* print branch_from information */
385 if (PRINT_FIELD(IP)) {
386 if (!symbol_conf.use_callchain)
387 printf(" ");
388 else
389 printf("\n");
390 perf_event__print_ip(event, sample, machine, evsel,
391 PRINT_FIELD(SYM), PRINT_FIELD(DSO),
392 PRINT_FIELD(SYMOFFSET));
393 }
394
395 printf(" => ");
396
397 /* print branch_to information */
398 if (PRINT_FIELD(ADDR))
399 print_sample_addr(event, sample, machine, thread, attr);
400
401 printf("\n");
402}
403
404static void process_event(union perf_event *event __unused,
405 struct perf_sample *sample,
406 struct perf_evsel *evsel,
407 struct machine *machine,
408 struct thread *thread)
409{
410 struct perf_event_attr *attr = &evsel->attr;
411
412 if (output[attr->type].fields == 0)
413 return;
414
415 print_sample_start(sample, thread, attr);
416
417 if (is_bts_event(attr)) {
418 print_sample_bts(event, sample, evsel, machine, thread);
419 return;
420 }
421
422 if (PRINT_FIELD(TRACE))
423 print_trace_event(sample->cpu, sample->raw_data,
424 sample->raw_size);
425
426 if (PRINT_FIELD(ADDR))
427 print_sample_addr(event, sample, machine, thread, attr);
428
429 if (PRINT_FIELD(IP)) {
430 if (!symbol_conf.use_callchain)
431 printf(" ");
432 else
433 printf("\n");
434 perf_event__print_ip(event, sample, machine, evsel,
435 PRINT_FIELD(SYM), PRINT_FIELD(DSO),
436 PRINT_FIELD(SYMOFFSET));
437 }
438
439 printf("\n");
440}
441
442static int default_start_script(const char *script __unused,
443 int argc __unused,
444 const char **argv __unused)
445{
446 return 0;
447}
448
449static int default_stop_script(void)
450{
451 return 0;
452}
453
454static int default_generate_script(const char *outfile __unused)
455{
456 return 0;
457}
458
459static struct scripting_ops default_scripting_ops = {
460 .start_script = default_start_script,
461 .stop_script = default_stop_script,
462 .process_event = process_event,
463 .generate_script = default_generate_script,
464};
465
466static struct scripting_ops *scripting_ops;
467
468static void setup_scripting(void)
469{
470 setup_perl_scripting();
471 setup_python_scripting();
472
473 scripting_ops = &default_scripting_ops;
474}
475
476static int cleanup_scripting(void)
477{
478 pr_debug("\nperf script stopped\n");
479
480 return scripting_ops->stop_script();
481}
482
483static const char *input_name;
484
485static int process_sample_event(struct perf_tool *tool __used,
486 union perf_event *event,
487 struct perf_sample *sample,
488 struct perf_evsel *evsel,
489 struct machine *machine)
490{
491 struct addr_location al;
492 struct thread *thread = machine__findnew_thread(machine, event->ip.tid);
493
494 if (thread == NULL) {
495 pr_debug("problem processing %d event, skipping it.\n",
496 event->header.type);
497 return -1;
498 }
499
500 if (debug_mode) {
501 if (sample->time < last_timestamp) {
502 pr_err("Samples misordered, previous: %" PRIu64
503 " this: %" PRIu64 "\n", last_timestamp,
504 sample->time);
505 nr_unordered++;
506 }
507 last_timestamp = sample->time;
508 return 0;
509 }
510
511 if (perf_event__preprocess_sample(event, machine, &al, sample, 0) < 0) {
512 pr_err("problem processing %d event, skipping it.\n",
513 event->header.type);
514 return -1;
515 }
516
517 if (al.filtered)
518 return 0;
519
520 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
521 return 0;
522
523 scripting_ops->process_event(event, sample, evsel, machine, thread);
524
525 evsel->hists.stats.total_period += sample->period;
526 return 0;
527}
528
529static struct perf_tool perf_script = {
530 .sample = process_sample_event,
531 .mmap = perf_event__process_mmap,
532 .comm = perf_event__process_comm,
533 .exit = perf_event__process_task,
534 .fork = perf_event__process_task,
535 .attr = perf_event__process_attr,
536 .event_type = perf_event__process_event_type,
537 .tracing_data = perf_event__process_tracing_data,
538 .build_id = perf_event__process_build_id,
539 .ordered_samples = true,
540 .ordering_requires_timestamps = true,
541};
542
543extern volatile int session_done;
544
545static void sig_handler(int sig __unused)
546{
547 session_done = 1;
548}
549
550static int __cmd_script(struct perf_session *session)
551{
552 int ret;
553
554 signal(SIGINT, sig_handler);
555
556 ret = perf_session__process_events(session, &perf_script);
557
558 if (debug_mode)
559 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
560
561 return ret;
562}
563
564struct script_spec {
565 struct list_head node;
566 struct scripting_ops *ops;
567 char spec[0];
568};
569
570static LIST_HEAD(script_specs);
571
572static struct script_spec *script_spec__new(const char *spec,
573 struct scripting_ops *ops)
574{
575 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
576
577 if (s != NULL) {
578 strcpy(s->spec, spec);
579 s->ops = ops;
580 }
581
582 return s;
583}
584
585static void script_spec__add(struct script_spec *s)
586{
587 list_add_tail(&s->node, &script_specs);
588}
589
590static struct script_spec *script_spec__find(const char *spec)
591{
592 struct script_spec *s;
593
594 list_for_each_entry(s, &script_specs, node)
595 if (strcasecmp(s->spec, spec) == 0)
596 return s;
597 return NULL;
598}
599
600static struct script_spec *script_spec__findnew(const char *spec,
601 struct scripting_ops *ops)
602{
603 struct script_spec *s = script_spec__find(spec);
604
605 if (s)
606 return s;
607
608 s = script_spec__new(spec, ops);
609 if (!s)
610 return NULL;
611
612 script_spec__add(s);
613
614 return s;
615}
616
617int script_spec_register(const char *spec, struct scripting_ops *ops)
618{
619 struct script_spec *s;
620
621 s = script_spec__find(spec);
622 if (s)
623 return -1;
624
625 s = script_spec__findnew(spec, ops);
626 if (!s)
627 return -1;
628
629 return 0;
630}
631
632static struct scripting_ops *script_spec__lookup(const char *spec)
633{
634 struct script_spec *s = script_spec__find(spec);
635 if (!s)
636 return NULL;
637
638 return s->ops;
639}
640
641static void list_available_languages(void)
642{
643 struct script_spec *s;
644
645 fprintf(stderr, "\n");
646 fprintf(stderr, "Scripting language extensions (used in "
647 "perf script -s [spec:]script.[spec]):\n\n");
648
649 list_for_each_entry(s, &script_specs, node)
650 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
651
652 fprintf(stderr, "\n");
653}
654
655static int parse_scriptname(const struct option *opt __used,
656 const char *str, int unset __used)
657{
658 char spec[PATH_MAX];
659 const char *script, *ext;
660 int len;
661
662 if (strcmp(str, "lang") == 0) {
663 list_available_languages();
664 exit(0);
665 }
666
667 script = strchr(str, ':');
668 if (script) {
669 len = script - str;
670 if (len >= PATH_MAX) {
671 fprintf(stderr, "invalid language specifier");
672 return -1;
673 }
674 strncpy(spec, str, len);
675 spec[len] = '\0';
676 scripting_ops = script_spec__lookup(spec);
677 if (!scripting_ops) {
678 fprintf(stderr, "invalid language specifier");
679 return -1;
680 }
681 script++;
682 } else {
683 script = str;
684 ext = strrchr(script, '.');
685 if (!ext) {
686 fprintf(stderr, "invalid script extension");
687 return -1;
688 }
689 scripting_ops = script_spec__lookup(++ext);
690 if (!scripting_ops) {
691 fprintf(stderr, "invalid script extension");
692 return -1;
693 }
694 }
695
696 script_name = strdup(script);
697
698 return 0;
699}
700
701static int parse_output_fields(const struct option *opt __used,
702 const char *arg, int unset __used)
703{
704 char *tok;
705 int i, imax = sizeof(all_output_options) / sizeof(struct output_option);
706 int j;
707 int rc = 0;
708 char *str = strdup(arg);
709 int type = -1;
710
711 if (!str)
712 return -ENOMEM;
713
714 /* first word can state for which event type the user is specifying
715 * the fields. If no type exists, the specified fields apply to all
716 * event types found in the file minus the invalid fields for a type.
717 */
718 tok = strchr(str, ':');
719 if (tok) {
720 *tok = '\0';
721 tok++;
722 if (!strcmp(str, "hw"))
723 type = PERF_TYPE_HARDWARE;
724 else if (!strcmp(str, "sw"))
725 type = PERF_TYPE_SOFTWARE;
726 else if (!strcmp(str, "trace"))
727 type = PERF_TYPE_TRACEPOINT;
728 else if (!strcmp(str, "raw"))
729 type = PERF_TYPE_RAW;
730 else {
731 fprintf(stderr, "Invalid event type in field string.\n");
732 rc = -EINVAL;
733 goto out;
734 }
735
736 if (output[type].user_set)
737 pr_warning("Overriding previous field request for %s events.\n",
738 event_type(type));
739
740 output[type].fields = 0;
741 output[type].user_set = true;
742 output[type].wildcard_set = false;
743
744 } else {
745 tok = str;
746 if (strlen(str) == 0) {
747 fprintf(stderr,
748 "Cannot set fields to 'none' for all event types.\n");
749 rc = -EINVAL;
750 goto out;
751 }
752
753 if (output_set_by_user())
754 pr_warning("Overriding previous field request for all events.\n");
755
756 for (j = 0; j < PERF_TYPE_MAX; ++j) {
757 output[j].fields = 0;
758 output[j].user_set = true;
759 output[j].wildcard_set = true;
760 }
761 }
762
763 tok = strtok(tok, ",");
764 while (tok) {
765 for (i = 0; i < imax; ++i) {
766 if (strcmp(tok, all_output_options[i].str) == 0)
767 break;
768 }
769 if (i == imax) {
770 fprintf(stderr, "Invalid field requested.\n");
771 rc = -EINVAL;
772 goto out;
773 }
774
775 if (type == -1) {
776 /* add user option to all events types for
777 * which it is valid
778 */
779 for (j = 0; j < PERF_TYPE_MAX; ++j) {
780 if (output[j].invalid_fields & all_output_options[i].field) {
781 pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
782 all_output_options[i].str, event_type(j));
783 } else
784 output[j].fields |= all_output_options[i].field;
785 }
786 } else {
787 if (output[type].invalid_fields & all_output_options[i].field) {
788 fprintf(stderr, "\'%s\' not valid for %s events.\n",
789 all_output_options[i].str, event_type(type));
790
791 rc = -EINVAL;
792 goto out;
793 }
794 output[type].fields |= all_output_options[i].field;
795 }
796
797 tok = strtok(NULL, ",");
798 }
799
800 if (type >= 0) {
801 if (output[type].fields == 0) {
802 pr_debug("No fields requested for %s type. "
803 "Events will not be displayed.\n", event_type(type));
804 }
805 }
806
807out:
808 free(str);
809 return rc;
810}
811
812/* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */
813static int is_directory(const char *base_path, const struct dirent *dent)
814{
815 char path[PATH_MAX];
816 struct stat st;
817
818 sprintf(path, "%s/%s", base_path, dent->d_name);
819 if (stat(path, &st))
820 return 0;
821
822 return S_ISDIR(st.st_mode);
823}
824
825#define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\
826 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \
827 lang_next) \
828 if ((lang_dirent.d_type == DT_DIR || \
829 (lang_dirent.d_type == DT_UNKNOWN && \
830 is_directory(scripts_path, &lang_dirent))) && \
831 (strcmp(lang_dirent.d_name, ".")) && \
832 (strcmp(lang_dirent.d_name, "..")))
833
834#define for_each_script(lang_path, lang_dir, script_dirent, script_next)\
835 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \
836 script_next) \
837 if (script_dirent.d_type != DT_DIR && \
838 (script_dirent.d_type != DT_UNKNOWN || \
839 !is_directory(lang_path, &script_dirent)))
840
841
842#define RECORD_SUFFIX "-record"
843#define REPORT_SUFFIX "-report"
844
845struct script_desc {
846 struct list_head node;
847 char *name;
848 char *half_liner;
849 char *args;
850};
851
852static LIST_HEAD(script_descs);
853
854static struct script_desc *script_desc__new(const char *name)
855{
856 struct script_desc *s = zalloc(sizeof(*s));
857
858 if (s != NULL && name)
859 s->name = strdup(name);
860
861 return s;
862}
863
864static void script_desc__delete(struct script_desc *s)
865{
866 free(s->name);
867 free(s->half_liner);
868 free(s->args);
869 free(s);
870}
871
872static void script_desc__add(struct script_desc *s)
873{
874 list_add_tail(&s->node, &script_descs);
875}
876
877static struct script_desc *script_desc__find(const char *name)
878{
879 struct script_desc *s;
880
881 list_for_each_entry(s, &script_descs, node)
882 if (strcasecmp(s->name, name) == 0)
883 return s;
884 return NULL;
885}
886
887static struct script_desc *script_desc__findnew(const char *name)
888{
889 struct script_desc *s = script_desc__find(name);
890
891 if (s)
892 return s;
893
894 s = script_desc__new(name);
895 if (!s)
896 goto out_delete_desc;
897
898 script_desc__add(s);
899
900 return s;
901
902out_delete_desc:
903 script_desc__delete(s);
904
905 return NULL;
906}
907
908static const char *ends_with(const char *str, const char *suffix)
909{
910 size_t suffix_len = strlen(suffix);
911 const char *p = str;
912
913 if (strlen(str) > suffix_len) {
914 p = str + strlen(str) - suffix_len;
915 if (!strncmp(p, suffix, suffix_len))
916 return p;
917 }
918
919 return NULL;
920}
921
922static char *ltrim(char *str)
923{
924 int len = strlen(str);
925
926 while (len && isspace(*str)) {
927 len--;
928 str++;
929 }
930
931 return str;
932}
933
934static int read_script_info(struct script_desc *desc, const char *filename)
935{
936 char line[BUFSIZ], *p;
937 FILE *fp;
938
939 fp = fopen(filename, "r");
940 if (!fp)
941 return -1;
942
943 while (fgets(line, sizeof(line), fp)) {
944 p = ltrim(line);
945 if (strlen(p) == 0)
946 continue;
947 if (*p != '#')
948 continue;
949 p++;
950 if (strlen(p) && *p == '!')
951 continue;
952
953 p = ltrim(p);
954 if (strlen(p) && p[strlen(p) - 1] == '\n')
955 p[strlen(p) - 1] = '\0';
956
957 if (!strncmp(p, "description:", strlen("description:"))) {
958 p += strlen("description:");
959 desc->half_liner = strdup(ltrim(p));
960 continue;
961 }
962
963 if (!strncmp(p, "args:", strlen("args:"))) {
964 p += strlen("args:");
965 desc->args = strdup(ltrim(p));
966 continue;
967 }
968 }
969
970 fclose(fp);
971
972 return 0;
973}
974
975static char *get_script_root(struct dirent *script_dirent, const char *suffix)
976{
977 char *script_root, *str;
978
979 script_root = strdup(script_dirent->d_name);
980 if (!script_root)
981 return NULL;
982
983 str = (char *)ends_with(script_root, suffix);
984 if (!str) {
985 free(script_root);
986 return NULL;
987 }
988
989 *str = '\0';
990 return script_root;
991}
992
993static int list_available_scripts(const struct option *opt __used,
994 const char *s __used, int unset __used)
995{
996 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
997 char scripts_path[MAXPATHLEN];
998 DIR *scripts_dir, *lang_dir;
999 char script_path[MAXPATHLEN];
1000 char lang_path[MAXPATHLEN];
1001 struct script_desc *desc;
1002 char first_half[BUFSIZ];
1003 char *script_root;
1004
1005 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1006
1007 scripts_dir = opendir(scripts_path);
1008 if (!scripts_dir)
1009 return -1;
1010
1011 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1012 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1013 lang_dirent.d_name);
1014 lang_dir = opendir(lang_path);
1015 if (!lang_dir)
1016 continue;
1017
1018 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1019 script_root = get_script_root(&script_dirent, REPORT_SUFFIX);
1020 if (script_root) {
1021 desc = script_desc__findnew(script_root);
1022 snprintf(script_path, MAXPATHLEN, "%s/%s",
1023 lang_path, script_dirent.d_name);
1024 read_script_info(desc, script_path);
1025 free(script_root);
1026 }
1027 }
1028 }
1029
1030 fprintf(stdout, "List of available trace scripts:\n");
1031 list_for_each_entry(desc, &script_descs, node) {
1032 sprintf(first_half, "%s %s", desc->name,
1033 desc->args ? desc->args : "");
1034 fprintf(stdout, " %-36s %s\n", first_half,
1035 desc->half_liner ? desc->half_liner : "");
1036 }
1037
1038 exit(0);
1039}
1040
1041static char *get_script_path(const char *script_root, const char *suffix)
1042{
1043 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1044 char scripts_path[MAXPATHLEN];
1045 char script_path[MAXPATHLEN];
1046 DIR *scripts_dir, *lang_dir;
1047 char lang_path[MAXPATHLEN];
1048 char *__script_root;
1049
1050 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1051
1052 scripts_dir = opendir(scripts_path);
1053 if (!scripts_dir)
1054 return NULL;
1055
1056 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1057 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1058 lang_dirent.d_name);
1059 lang_dir = opendir(lang_path);
1060 if (!lang_dir)
1061 continue;
1062
1063 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1064 __script_root = get_script_root(&script_dirent, suffix);
1065 if (__script_root && !strcmp(script_root, __script_root)) {
1066 free(__script_root);
1067 closedir(lang_dir);
1068 closedir(scripts_dir);
1069 snprintf(script_path, MAXPATHLEN, "%s/%s",
1070 lang_path, script_dirent.d_name);
1071 return strdup(script_path);
1072 }
1073 free(__script_root);
1074 }
1075 closedir(lang_dir);
1076 }
1077 closedir(scripts_dir);
1078
1079 return NULL;
1080}
1081
1082static bool is_top_script(const char *script_path)
1083{
1084 return ends_with(script_path, "top") == NULL ? false : true;
1085}
1086
1087static int has_required_arg(char *script_path)
1088{
1089 struct script_desc *desc;
1090 int n_args = 0;
1091 char *p;
1092
1093 desc = script_desc__new(NULL);
1094
1095 if (read_script_info(desc, script_path))
1096 goto out;
1097
1098 if (!desc->args)
1099 goto out;
1100
1101 for (p = desc->args; *p; p++)
1102 if (*p == '<')
1103 n_args++;
1104out:
1105 script_desc__delete(desc);
1106
1107 return n_args;
1108}
1109
1110static const char * const script_usage[] = {
1111 "perf script [<options>]",
1112 "perf script [<options>] record <script> [<record-options>] <command>",
1113 "perf script [<options>] report <script> [script-args]",
1114 "perf script [<options>] <script> [<record-options>] <command>",
1115 "perf script [<options>] <top-script> [script-args]",
1116 NULL
1117};
1118
1119static const struct option options[] = {
1120 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1121 "dump raw trace in ASCII"),
1122 OPT_INCR('v', "verbose", &verbose,
1123 "be more verbose (show symbol address, etc)"),
1124 OPT_BOOLEAN('L', "Latency", &latency_format,
1125 "show latency attributes (irqs/preemption disabled, etc)"),
1126 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
1127 list_available_scripts),
1128 OPT_CALLBACK('s', "script", NULL, "name",
1129 "script file name (lang:script name, script name, or *)",
1130 parse_scriptname),
1131 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
1132 "generate perf-script.xx script in specified language"),
1133 OPT_STRING('i', "input", &input_name, "file",
1134 "input file name"),
1135 OPT_BOOLEAN('d', "debug-mode", &debug_mode,
1136 "do various checks like samples ordering and lost events"),
1137 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1138 "file", "vmlinux pathname"),
1139 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1140 "file", "kallsyms pathname"),
1141 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
1142 "When printing symbols do not display call chain"),
1143 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
1144 "Look for files with symbols relative to this directory"),
1145 OPT_CALLBACK('f', "fields", NULL, "str",
1146 "comma separated output fields prepend with 'type:'. "
1147 "Valid types: hw,sw,trace,raw. "
1148 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
1149 "addr,symoff",
1150 parse_output_fields),
1151 OPT_BOOLEAN('a', "all-cpus", &system_wide,
1152 "system-wide collection from all CPUs"),
1153 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
1154 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1155 "only display events for these comms"),
1156 OPT_BOOLEAN('I', "show-info", &show_full_info,
1157 "display extended information from perf.data file"),
1158 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
1159 "Show the path of [kernel.kallsyms]"),
1160
1161 OPT_END()
1162};
1163
1164static bool have_cmd(int argc, const char **argv)
1165{
1166 char **__argv = malloc(sizeof(const char *) * argc);
1167
1168 if (!__argv)
1169 die("malloc");
1170 memcpy(__argv, argv, sizeof(const char *) * argc);
1171 argc = parse_options(argc, (const char **)__argv, record_options,
1172 NULL, PARSE_OPT_STOP_AT_NON_OPTION);
1173 free(__argv);
1174
1175 return argc != 0;
1176}
1177
1178int cmd_script(int argc, const char **argv, const char *prefix __used)
1179{
1180 char *rec_script_path = NULL;
1181 char *rep_script_path = NULL;
1182 struct perf_session *session;
1183 char *script_path = NULL;
1184 const char **__argv;
1185 int i, j, err;
1186
1187 setup_scripting();
1188
1189 argc = parse_options(argc, argv, options, script_usage,
1190 PARSE_OPT_STOP_AT_NON_OPTION);
1191
1192 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
1193 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
1194 if (!rec_script_path)
1195 return cmd_record(argc, argv, NULL);
1196 }
1197
1198 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
1199 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
1200 if (!rep_script_path) {
1201 fprintf(stderr,
1202 "Please specify a valid report script"
1203 "(see 'perf script -l' for listing)\n");
1204 return -1;
1205 }
1206 }
1207
1208 /* make sure PERF_EXEC_PATH is set for scripts */
1209 perf_set_argv_exec_path(perf_exec_path());
1210
1211 if (argc && !script_name && !rec_script_path && !rep_script_path) {
1212 int live_pipe[2];
1213 int rep_args;
1214 pid_t pid;
1215
1216 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
1217 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
1218
1219 if (!rec_script_path && !rep_script_path) {
1220 fprintf(stderr, " Couldn't find script %s\n\n See perf"
1221 " script -l for available scripts.\n", argv[0]);
1222 usage_with_options(script_usage, options);
1223 }
1224
1225 if (is_top_script(argv[0])) {
1226 rep_args = argc - 1;
1227 } else {
1228 int rec_args;
1229
1230 rep_args = has_required_arg(rep_script_path);
1231 rec_args = (argc - 1) - rep_args;
1232 if (rec_args < 0) {
1233 fprintf(stderr, " %s script requires options."
1234 "\n\n See perf script -l for available "
1235 "scripts and options.\n", argv[0]);
1236 usage_with_options(script_usage, options);
1237 }
1238 }
1239
1240 if (pipe(live_pipe) < 0) {
1241 perror("failed to create pipe");
1242 exit(-1);
1243 }
1244
1245 pid = fork();
1246 if (pid < 0) {
1247 perror("failed to fork");
1248 exit(-1);
1249 }
1250
1251 if (!pid) {
1252 j = 0;
1253
1254 dup2(live_pipe[1], 1);
1255 close(live_pipe[0]);
1256
1257 if (is_top_script(argv[0])) {
1258 system_wide = true;
1259 } else if (!system_wide) {
1260 system_wide = !have_cmd(argc - rep_args,
1261 &argv[rep_args]);
1262 }
1263
1264 __argv = malloc((argc + 6) * sizeof(const char *));
1265 if (!__argv)
1266 die("malloc");
1267
1268 __argv[j++] = "/bin/sh";
1269 __argv[j++] = rec_script_path;
1270 if (system_wide)
1271 __argv[j++] = "-a";
1272 __argv[j++] = "-q";
1273 __argv[j++] = "-o";
1274 __argv[j++] = "-";
1275 for (i = rep_args + 1; i < argc; i++)
1276 __argv[j++] = argv[i];
1277 __argv[j++] = NULL;
1278
1279 execvp("/bin/sh", (char **)__argv);
1280 free(__argv);
1281 exit(-1);
1282 }
1283
1284 dup2(live_pipe[0], 0);
1285 close(live_pipe[1]);
1286
1287 __argv = malloc((argc + 4) * sizeof(const char *));
1288 if (!__argv)
1289 die("malloc");
1290 j = 0;
1291 __argv[j++] = "/bin/sh";
1292 __argv[j++] = rep_script_path;
1293 for (i = 1; i < rep_args + 1; i++)
1294 __argv[j++] = argv[i];
1295 __argv[j++] = "-i";
1296 __argv[j++] = "-";
1297 __argv[j++] = NULL;
1298
1299 execvp("/bin/sh", (char **)__argv);
1300 free(__argv);
1301 exit(-1);
1302 }
1303
1304 if (rec_script_path)
1305 script_path = rec_script_path;
1306 if (rep_script_path)
1307 script_path = rep_script_path;
1308
1309 if (script_path) {
1310 j = 0;
1311
1312 if (!rec_script_path)
1313 system_wide = false;
1314 else if (!system_wide)
1315 system_wide = !have_cmd(argc - 1, &argv[1]);
1316
1317 __argv = malloc((argc + 2) * sizeof(const char *));
1318 if (!__argv)
1319 die("malloc");
1320 __argv[j++] = "/bin/sh";
1321 __argv[j++] = script_path;
1322 if (system_wide)
1323 __argv[j++] = "-a";
1324 for (i = 2; i < argc; i++)
1325 __argv[j++] = argv[i];
1326 __argv[j++] = NULL;
1327
1328 execvp("/bin/sh", (char **)__argv);
1329 free(__argv);
1330 exit(-1);
1331 }
1332
1333 if (symbol__init() < 0)
1334 return -1;
1335 if (!script_name)
1336 setup_pager();
1337
1338 session = perf_session__new(input_name, O_RDONLY, 0, false, &perf_script);
1339 if (session == NULL)
1340 return -ENOMEM;
1341
1342 if (cpu_list) {
1343 if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap))
1344 return -1;
1345 }
1346
1347 perf_session__fprintf_info(session, stdout, show_full_info);
1348
1349 if (!no_callchain)
1350 symbol_conf.use_callchain = true;
1351 else
1352 symbol_conf.use_callchain = false;
1353
1354 if (generate_script_lang) {
1355 struct stat perf_stat;
1356 int input;
1357
1358 if (output_set_by_user()) {
1359 fprintf(stderr,
1360 "custom fields not supported for generated scripts");
1361 return -1;
1362 }
1363
1364 input = open(session->filename, O_RDONLY); /* input_name */
1365 if (input < 0) {
1366 perror("failed to open file");
1367 exit(-1);
1368 }
1369
1370 err = fstat(input, &perf_stat);
1371 if (err < 0) {
1372 perror("failed to stat file");
1373 exit(-1);
1374 }
1375
1376 if (!perf_stat.st_size) {
1377 fprintf(stderr, "zero-sized file, nothing to do!\n");
1378 exit(0);
1379 }
1380
1381 scripting_ops = script_spec__lookup(generate_script_lang);
1382 if (!scripting_ops) {
1383 fprintf(stderr, "invalid language specifier");
1384 return -1;
1385 }
1386
1387 err = scripting_ops->generate_script("perf-script");
1388 goto out;
1389 }
1390
1391 if (script_name) {
1392 err = scripting_ops->start_script(script_name, argc, argv);
1393 if (err)
1394 goto out;
1395 pr_debug("perf script started with script %s\n\n", script_name);
1396 }
1397
1398
1399 err = perf_session__check_output_opt(session);
1400 if (err < 0)
1401 goto out;
1402
1403 err = __cmd_script(session);
1404
1405 perf_session__delete(session);
1406 cleanup_scripting();
1407out:
1408 return err;
1409}
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};
48
49struct output_option {
50 const char *str;
51 enum perf_output_field field;
52} all_output_options[] = {
53 {.str = "comm", .field = PERF_OUTPUT_COMM},
54 {.str = "tid", .field = PERF_OUTPUT_TID},
55 {.str = "pid", .field = PERF_OUTPUT_PID},
56 {.str = "time", .field = PERF_OUTPUT_TIME},
57 {.str = "cpu", .field = PERF_OUTPUT_CPU},
58 {.str = "event", .field = PERF_OUTPUT_EVNAME},
59 {.str = "trace", .field = PERF_OUTPUT_TRACE},
60 {.str = "ip", .field = PERF_OUTPUT_IP},
61 {.str = "sym", .field = PERF_OUTPUT_SYM},
62 {.str = "dso", .field = PERF_OUTPUT_DSO},
63 {.str = "addr", .field = PERF_OUTPUT_ADDR},
64 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
65 {.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
66};
67
68/* default set to maintain compatibility with current format */
69static struct {
70 bool user_set;
71 bool wildcard_set;
72 unsigned int print_ip_opts;
73 u64 fields;
74 u64 invalid_fields;
75} output[PERF_TYPE_MAX] = {
76
77 [PERF_TYPE_HARDWARE] = {
78 .user_set = false,
79
80 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
81 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
82 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
83 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
84
85 .invalid_fields = PERF_OUTPUT_TRACE,
86 },
87
88 [PERF_TYPE_SOFTWARE] = {
89 .user_set = false,
90
91 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
92 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
93 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
94 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
95
96 .invalid_fields = PERF_OUTPUT_TRACE,
97 },
98
99 [PERF_TYPE_TRACEPOINT] = {
100 .user_set = false,
101
102 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
103 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
104 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE,
105 },
106
107 [PERF_TYPE_RAW] = {
108 .user_set = false,
109
110 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
111 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
112 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
113 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
114
115 .invalid_fields = PERF_OUTPUT_TRACE,
116 },
117};
118
119static bool output_set_by_user(void)
120{
121 int j;
122 for (j = 0; j < PERF_TYPE_MAX; ++j) {
123 if (output[j].user_set)
124 return true;
125 }
126 return false;
127}
128
129static const char *output_field2str(enum perf_output_field field)
130{
131 int i, imax = ARRAY_SIZE(all_output_options);
132 const char *str = "";
133
134 for (i = 0; i < imax; ++i) {
135 if (all_output_options[i].field == field) {
136 str = all_output_options[i].str;
137 break;
138 }
139 }
140 return str;
141}
142
143#define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x)
144
145static int perf_evsel__check_stype(struct perf_evsel *evsel,
146 u64 sample_type, const char *sample_msg,
147 enum perf_output_field field)
148{
149 struct perf_event_attr *attr = &evsel->attr;
150 int type = attr->type;
151 const char *evname;
152
153 if (attr->sample_type & sample_type)
154 return 0;
155
156 if (output[type].user_set) {
157 evname = perf_evsel__name(evsel);
158 pr_err("Samples for '%s' event do not have %s attribute set. "
159 "Cannot print '%s' field.\n",
160 evname, sample_msg, output_field2str(field));
161 return -1;
162 }
163
164 /* user did not ask for it explicitly so remove from the default list */
165 output[type].fields &= ~field;
166 evname = perf_evsel__name(evsel);
167 pr_debug("Samples for '%s' event do not have %s attribute set. "
168 "Skipping '%s' field.\n",
169 evname, sample_msg, output_field2str(field));
170
171 return 0;
172}
173
174static int perf_evsel__check_attr(struct perf_evsel *evsel,
175 struct perf_session *session)
176{
177 struct perf_event_attr *attr = &evsel->attr;
178
179 if (PRINT_FIELD(TRACE) &&
180 !perf_session__has_traces(session, "record -R"))
181 return -EINVAL;
182
183 if (PRINT_FIELD(IP)) {
184 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP",
185 PERF_OUTPUT_IP))
186 return -EINVAL;
187
188 if (!no_callchain &&
189 !(attr->sample_type & PERF_SAMPLE_CALLCHAIN))
190 symbol_conf.use_callchain = false;
191 }
192
193 if (PRINT_FIELD(ADDR) &&
194 perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR",
195 PERF_OUTPUT_ADDR))
196 return -EINVAL;
197
198 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
199 pr_err("Display of symbols requested but neither sample IP nor "
200 "sample address\nis selected. Hence, no addresses to convert "
201 "to symbols.\n");
202 return -EINVAL;
203 }
204 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) {
205 pr_err("Display of offsets requested but symbol is not"
206 "selected.\n");
207 return -EINVAL;
208 }
209 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
210 pr_err("Display of DSO requested but neither sample IP nor "
211 "sample address\nis selected. Hence, no addresses to convert "
212 "to DSO.\n");
213 return -EINVAL;
214 }
215 if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) {
216 pr_err("Display of source line number requested but sample IP is not\n"
217 "selected. Hence, no address to lookup the source line number.\n");
218 return -EINVAL;
219 }
220
221 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
222 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
223 PERF_OUTPUT_TID|PERF_OUTPUT_PID))
224 return -EINVAL;
225
226 if (PRINT_FIELD(TIME) &&
227 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME",
228 PERF_OUTPUT_TIME))
229 return -EINVAL;
230
231 if (PRINT_FIELD(CPU) &&
232 perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU",
233 PERF_OUTPUT_CPU))
234 return -EINVAL;
235
236 return 0;
237}
238
239static void set_print_ip_opts(struct perf_event_attr *attr)
240{
241 unsigned int type = attr->type;
242
243 output[type].print_ip_opts = 0;
244 if (PRINT_FIELD(IP))
245 output[type].print_ip_opts |= PRINT_IP_OPT_IP;
246
247 if (PRINT_FIELD(SYM))
248 output[type].print_ip_opts |= PRINT_IP_OPT_SYM;
249
250 if (PRINT_FIELD(DSO))
251 output[type].print_ip_opts |= PRINT_IP_OPT_DSO;
252
253 if (PRINT_FIELD(SYMOFFSET))
254 output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET;
255
256 if (PRINT_FIELD(SRCLINE))
257 output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE;
258}
259
260/*
261 * verify all user requested events exist and the samples
262 * have the expected data
263 */
264static int perf_session__check_output_opt(struct perf_session *session)
265{
266 int j;
267 struct perf_evsel *evsel;
268
269 for (j = 0; j < PERF_TYPE_MAX; ++j) {
270 evsel = perf_session__find_first_evtype(session, j);
271
272 /*
273 * even if fields is set to 0 (ie., show nothing) event must
274 * exist if user explicitly includes it on the command line
275 */
276 if (!evsel && output[j].user_set && !output[j].wildcard_set) {
277 pr_err("%s events do not exist. "
278 "Remove corresponding -f option to proceed.\n",
279 event_type(j));
280 return -1;
281 }
282
283 if (evsel && output[j].fields &&
284 perf_evsel__check_attr(evsel, session))
285 return -1;
286
287 if (evsel == NULL)
288 continue;
289
290 set_print_ip_opts(&evsel->attr);
291 }
292
293 /*
294 * set default for tracepoints to print symbols only
295 * if callchains are present
296 */
297 if (symbol_conf.use_callchain &&
298 !output[PERF_TYPE_TRACEPOINT].user_set) {
299 struct perf_event_attr *attr;
300
301 j = PERF_TYPE_TRACEPOINT;
302 evsel = perf_session__find_first_evtype(session, j);
303 if (evsel == NULL)
304 goto out;
305
306 attr = &evsel->attr;
307
308 if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) {
309 output[j].fields |= PERF_OUTPUT_IP;
310 output[j].fields |= PERF_OUTPUT_SYM;
311 output[j].fields |= PERF_OUTPUT_DSO;
312 set_print_ip_opts(attr);
313 }
314 }
315
316out:
317 return 0;
318}
319
320static void print_sample_start(struct perf_sample *sample,
321 struct thread *thread,
322 struct perf_evsel *evsel)
323{
324 struct perf_event_attr *attr = &evsel->attr;
325 unsigned long secs;
326 unsigned long usecs;
327 unsigned long long nsecs;
328
329 if (PRINT_FIELD(COMM)) {
330 if (latency_format)
331 printf("%8.8s ", thread__comm_str(thread));
332 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
333 printf("%s ", thread__comm_str(thread));
334 else
335 printf("%16s ", thread__comm_str(thread));
336 }
337
338 if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
339 printf("%5d/%-5d ", sample->pid, sample->tid);
340 else if (PRINT_FIELD(PID))
341 printf("%5d ", sample->pid);
342 else if (PRINT_FIELD(TID))
343 printf("%5d ", sample->tid);
344
345 if (PRINT_FIELD(CPU)) {
346 if (latency_format)
347 printf("%3d ", sample->cpu);
348 else
349 printf("[%03d] ", sample->cpu);
350 }
351
352 if (PRINT_FIELD(TIME)) {
353 nsecs = sample->time;
354 secs = nsecs / NSECS_PER_SEC;
355 nsecs -= secs * NSECS_PER_SEC;
356 usecs = nsecs / NSECS_PER_USEC;
357 printf("%5lu.%06lu: ", secs, usecs);
358 }
359}
360
361static bool is_bts_event(struct perf_event_attr *attr)
362{
363 return ((attr->type == PERF_TYPE_HARDWARE) &&
364 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
365 (attr->sample_period == 1));
366}
367
368static bool sample_addr_correlates_sym(struct perf_event_attr *attr)
369{
370 if ((attr->type == PERF_TYPE_SOFTWARE) &&
371 ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) ||
372 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) ||
373 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)))
374 return true;
375
376 if (is_bts_event(attr))
377 return true;
378
379 return false;
380}
381
382static void print_sample_addr(union perf_event *event,
383 struct perf_sample *sample,
384 struct machine *machine,
385 struct thread *thread,
386 struct perf_event_attr *attr)
387{
388 struct addr_location al;
389 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
390
391 printf("%16" PRIx64, sample->addr);
392
393 if (!sample_addr_correlates_sym(attr))
394 return;
395
396 thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION,
397 sample->addr, &al);
398 if (!al.map)
399 thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE,
400 sample->addr, &al);
401
402 al.cpu = sample->cpu;
403 al.sym = NULL;
404
405 if (al.map)
406 al.sym = map__find_symbol(al.map, al.addr, NULL);
407
408 if (PRINT_FIELD(SYM)) {
409 printf(" ");
410 if (PRINT_FIELD(SYMOFFSET))
411 symbol__fprintf_symname_offs(al.sym, &al, stdout);
412 else
413 symbol__fprintf_symname(al.sym, stdout);
414 }
415
416 if (PRINT_FIELD(DSO)) {
417 printf(" (");
418 map__fprintf_dsoname(al.map, stdout);
419 printf(")");
420 }
421}
422
423static void print_sample_bts(union perf_event *event,
424 struct perf_sample *sample,
425 struct perf_evsel *evsel,
426 struct thread *thread,
427 struct addr_location *al)
428{
429 struct perf_event_attr *attr = &evsel->attr;
430
431 /* print branch_from information */
432 if (PRINT_FIELD(IP)) {
433 if (!symbol_conf.use_callchain)
434 printf(" ");
435 else
436 printf("\n");
437 perf_evsel__print_ip(evsel, sample, al,
438 output[attr->type].print_ip_opts,
439 PERF_MAX_STACK_DEPTH);
440 }
441
442 printf(" => ");
443
444 /* print branch_to information */
445 if (PRINT_FIELD(ADDR) ||
446 ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
447 !output[attr->type].user_set))
448 print_sample_addr(event, sample, al->machine, thread, attr);
449
450 printf("\n");
451}
452
453static void process_event(union perf_event *event, struct perf_sample *sample,
454 struct perf_evsel *evsel, struct thread *thread,
455 struct addr_location *al)
456{
457 struct perf_event_attr *attr = &evsel->attr;
458
459 if (output[attr->type].fields == 0)
460 return;
461
462 print_sample_start(sample, thread, evsel);
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_stop_script(void)
502{
503 return 0;
504}
505
506static int default_generate_script(struct pevent *pevent __maybe_unused,
507 const char *outfile __maybe_unused)
508{
509 return 0;
510}
511
512static struct scripting_ops default_scripting_ops = {
513 .start_script = default_start_script,
514 .stop_script = default_stop_script,
515 .process_event = process_event,
516 .generate_script = default_generate_script,
517};
518
519static struct scripting_ops *scripting_ops;
520
521static void setup_scripting(void)
522{
523 setup_perl_scripting();
524 setup_python_scripting();
525
526 scripting_ops = &default_scripting_ops;
527}
528
529static int cleanup_scripting(void)
530{
531 pr_debug("\nperf script stopped\n");
532
533 return scripting_ops->stop_script();
534}
535
536static int process_sample_event(struct perf_tool *tool __maybe_unused,
537 union perf_event *event,
538 struct perf_sample *sample,
539 struct perf_evsel *evsel,
540 struct machine *machine)
541{
542 struct addr_location al;
543 struct thread *thread = machine__findnew_thread(machine, sample->pid,
544 sample->tid);
545
546 if (thread == NULL) {
547 pr_debug("problem processing %d event, skipping it.\n",
548 event->header.type);
549 return -1;
550 }
551
552 if (debug_mode) {
553 if (sample->time < last_timestamp) {
554 pr_err("Samples misordered, previous: %" PRIu64
555 " this: %" PRIu64 "\n", last_timestamp,
556 sample->time);
557 nr_unordered++;
558 }
559 last_timestamp = sample->time;
560 return 0;
561 }
562
563 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
564 pr_err("problem processing %d event, skipping it.\n",
565 event->header.type);
566 return -1;
567 }
568
569 if (al.filtered)
570 return 0;
571
572 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
573 return 0;
574
575 scripting_ops->process_event(event, sample, evsel, thread, &al);
576
577 evsel->hists.stats.total_period += sample->period;
578 return 0;
579}
580
581struct perf_script {
582 struct perf_tool tool;
583 struct perf_session *session;
584 bool show_task_events;
585 bool show_mmap_events;
586};
587
588static int process_attr(struct perf_tool *tool, union perf_event *event,
589 struct perf_evlist **pevlist)
590{
591 struct perf_script *scr = container_of(tool, struct perf_script, tool);
592 struct perf_evlist *evlist;
593 struct perf_evsel *evsel, *pos;
594 int err;
595
596 err = perf_event__process_attr(tool, event, pevlist);
597 if (err)
598 return err;
599
600 evlist = *pevlist;
601 evsel = perf_evlist__last(*pevlist);
602
603 if (evsel->attr.type >= PERF_TYPE_MAX)
604 return 0;
605
606 evlist__for_each(evlist, pos) {
607 if (pos->attr.type == evsel->attr.type && pos != evsel)
608 return 0;
609 }
610
611 set_print_ip_opts(&evsel->attr);
612
613 return perf_evsel__check_attr(evsel, scr->session);
614}
615
616static int process_comm_event(struct perf_tool *tool,
617 union perf_event *event,
618 struct perf_sample *sample,
619 struct machine *machine)
620{
621 struct thread *thread;
622 struct perf_script *script = container_of(tool, struct perf_script, tool);
623 struct perf_session *session = script->session;
624 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
625 int ret = -1;
626
627 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
628 if (thread == NULL) {
629 pr_debug("problem processing COMM event, skipping it.\n");
630 return -1;
631 }
632
633 if (perf_event__process_comm(tool, event, sample, machine) < 0)
634 goto out;
635
636 if (!evsel->attr.sample_id_all) {
637 sample->cpu = 0;
638 sample->time = 0;
639 sample->tid = event->comm.tid;
640 sample->pid = event->comm.pid;
641 }
642 print_sample_start(sample, thread, evsel);
643 perf_event__fprintf(event, stdout);
644 ret = 0;
645
646out:
647 return ret;
648}
649
650static int process_fork_event(struct perf_tool *tool,
651 union perf_event *event,
652 struct perf_sample *sample,
653 struct machine *machine)
654{
655 struct thread *thread;
656 struct perf_script *script = container_of(tool, struct perf_script, tool);
657 struct perf_session *session = script->session;
658 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
659
660 if (perf_event__process_fork(tool, event, sample, machine) < 0)
661 return -1;
662
663 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
664 if (thread == NULL) {
665 pr_debug("problem processing FORK event, skipping it.\n");
666 return -1;
667 }
668
669 if (!evsel->attr.sample_id_all) {
670 sample->cpu = 0;
671 sample->time = event->fork.time;
672 sample->tid = event->fork.tid;
673 sample->pid = event->fork.pid;
674 }
675 print_sample_start(sample, thread, evsel);
676 perf_event__fprintf(event, stdout);
677
678 return 0;
679}
680static int process_exit_event(struct perf_tool *tool,
681 union perf_event *event,
682 struct perf_sample *sample,
683 struct machine *machine)
684{
685 struct thread *thread;
686 struct perf_script *script = container_of(tool, struct perf_script, tool);
687 struct perf_session *session = script->session;
688 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
689
690 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
691 if (thread == NULL) {
692 pr_debug("problem processing EXIT event, skipping it.\n");
693 return -1;
694 }
695
696 if (!evsel->attr.sample_id_all) {
697 sample->cpu = 0;
698 sample->time = 0;
699 sample->tid = event->comm.tid;
700 sample->pid = event->comm.pid;
701 }
702 print_sample_start(sample, thread, evsel);
703 perf_event__fprintf(event, stdout);
704
705 if (perf_event__process_exit(tool, event, sample, machine) < 0)
706 return -1;
707
708 return 0;
709}
710
711static int process_mmap_event(struct perf_tool *tool,
712 union perf_event *event,
713 struct perf_sample *sample,
714 struct machine *machine)
715{
716 struct thread *thread;
717 struct perf_script *script = container_of(tool, struct perf_script, tool);
718 struct perf_session *session = script->session;
719 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
720
721 if (perf_event__process_mmap(tool, event, sample, machine) < 0)
722 return -1;
723
724 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid);
725 if (thread == NULL) {
726 pr_debug("problem processing MMAP event, skipping it.\n");
727 return -1;
728 }
729
730 if (!evsel->attr.sample_id_all) {
731 sample->cpu = 0;
732 sample->time = 0;
733 sample->tid = event->mmap.tid;
734 sample->pid = event->mmap.pid;
735 }
736 print_sample_start(sample, thread, evsel);
737 perf_event__fprintf(event, stdout);
738
739 return 0;
740}
741
742static int process_mmap2_event(struct perf_tool *tool,
743 union perf_event *event,
744 struct perf_sample *sample,
745 struct machine *machine)
746{
747 struct thread *thread;
748 struct perf_script *script = container_of(tool, struct perf_script, tool);
749 struct perf_session *session = script->session;
750 struct perf_evsel *evsel = perf_evlist__first(session->evlist);
751
752 if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
753 return -1;
754
755 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid);
756 if (thread == NULL) {
757 pr_debug("problem processing MMAP2 event, skipping it.\n");
758 return -1;
759 }
760
761 if (!evsel->attr.sample_id_all) {
762 sample->cpu = 0;
763 sample->time = 0;
764 sample->tid = event->mmap2.tid;
765 sample->pid = event->mmap2.pid;
766 }
767 print_sample_start(sample, thread, evsel);
768 perf_event__fprintf(event, stdout);
769
770 return 0;
771}
772
773static void sig_handler(int sig __maybe_unused)
774{
775 session_done = 1;
776}
777
778static int __cmd_script(struct perf_script *script)
779{
780 int ret;
781
782 signal(SIGINT, sig_handler);
783
784 /* override event processing functions */
785 if (script->show_task_events) {
786 script->tool.comm = process_comm_event;
787 script->tool.fork = process_fork_event;
788 script->tool.exit = process_exit_event;
789 }
790 if (script->show_mmap_events) {
791 script->tool.mmap = process_mmap_event;
792 script->tool.mmap2 = process_mmap2_event;
793 }
794
795 ret = perf_session__process_events(script->session, &script->tool);
796
797 if (debug_mode)
798 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
799
800 return ret;
801}
802
803struct script_spec {
804 struct list_head node;
805 struct scripting_ops *ops;
806 char spec[0];
807};
808
809static LIST_HEAD(script_specs);
810
811static struct script_spec *script_spec__new(const char *spec,
812 struct scripting_ops *ops)
813{
814 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
815
816 if (s != NULL) {
817 strcpy(s->spec, spec);
818 s->ops = ops;
819 }
820
821 return s;
822}
823
824static void script_spec__add(struct script_spec *s)
825{
826 list_add_tail(&s->node, &script_specs);
827}
828
829static struct script_spec *script_spec__find(const char *spec)
830{
831 struct script_spec *s;
832
833 list_for_each_entry(s, &script_specs, node)
834 if (strcasecmp(s->spec, spec) == 0)
835 return s;
836 return NULL;
837}
838
839static struct script_spec *script_spec__findnew(const char *spec,
840 struct scripting_ops *ops)
841{
842 struct script_spec *s = script_spec__find(spec);
843
844 if (s)
845 return s;
846
847 s = script_spec__new(spec, ops);
848 if (!s)
849 return NULL;
850
851 script_spec__add(s);
852
853 return s;
854}
855
856int script_spec_register(const char *spec, struct scripting_ops *ops)
857{
858 struct script_spec *s;
859
860 s = script_spec__find(spec);
861 if (s)
862 return -1;
863
864 s = script_spec__findnew(spec, ops);
865 if (!s)
866 return -1;
867
868 return 0;
869}
870
871static struct scripting_ops *script_spec__lookup(const char *spec)
872{
873 struct script_spec *s = script_spec__find(spec);
874 if (!s)
875 return NULL;
876
877 return s->ops;
878}
879
880static void list_available_languages(void)
881{
882 struct script_spec *s;
883
884 fprintf(stderr, "\n");
885 fprintf(stderr, "Scripting language extensions (used in "
886 "perf script -s [spec:]script.[spec]):\n\n");
887
888 list_for_each_entry(s, &script_specs, node)
889 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
890
891 fprintf(stderr, "\n");
892}
893
894static int parse_scriptname(const struct option *opt __maybe_unused,
895 const char *str, int unset __maybe_unused)
896{
897 char spec[PATH_MAX];
898 const char *script, *ext;
899 int len;
900
901 if (strcmp(str, "lang") == 0) {
902 list_available_languages();
903 exit(0);
904 }
905
906 script = strchr(str, ':');
907 if (script) {
908 len = script - str;
909 if (len >= PATH_MAX) {
910 fprintf(stderr, "invalid language specifier");
911 return -1;
912 }
913 strncpy(spec, str, len);
914 spec[len] = '\0';
915 scripting_ops = script_spec__lookup(spec);
916 if (!scripting_ops) {
917 fprintf(stderr, "invalid language specifier");
918 return -1;
919 }
920 script++;
921 } else {
922 script = str;
923 ext = strrchr(script, '.');
924 if (!ext) {
925 fprintf(stderr, "invalid script extension");
926 return -1;
927 }
928 scripting_ops = script_spec__lookup(++ext);
929 if (!scripting_ops) {
930 fprintf(stderr, "invalid script extension");
931 return -1;
932 }
933 }
934
935 script_name = strdup(script);
936
937 return 0;
938}
939
940static int parse_output_fields(const struct option *opt __maybe_unused,
941 const char *arg, int unset __maybe_unused)
942{
943 char *tok;
944 int i, imax = ARRAY_SIZE(all_output_options);
945 int j;
946 int rc = 0;
947 char *str = strdup(arg);
948 int type = -1;
949
950 if (!str)
951 return -ENOMEM;
952
953 /* first word can state for which event type the user is specifying
954 * the fields. If no type exists, the specified fields apply to all
955 * event types found in the file minus the invalid fields for a type.
956 */
957 tok = strchr(str, ':');
958 if (tok) {
959 *tok = '\0';
960 tok++;
961 if (!strcmp(str, "hw"))
962 type = PERF_TYPE_HARDWARE;
963 else if (!strcmp(str, "sw"))
964 type = PERF_TYPE_SOFTWARE;
965 else if (!strcmp(str, "trace"))
966 type = PERF_TYPE_TRACEPOINT;
967 else if (!strcmp(str, "raw"))
968 type = PERF_TYPE_RAW;
969 else {
970 fprintf(stderr, "Invalid event type in field string.\n");
971 rc = -EINVAL;
972 goto out;
973 }
974
975 if (output[type].user_set)
976 pr_warning("Overriding previous field request for %s events.\n",
977 event_type(type));
978
979 output[type].fields = 0;
980 output[type].user_set = true;
981 output[type].wildcard_set = false;
982
983 } else {
984 tok = str;
985 if (strlen(str) == 0) {
986 fprintf(stderr,
987 "Cannot set fields to 'none' for all event types.\n");
988 rc = -EINVAL;
989 goto out;
990 }
991
992 if (output_set_by_user())
993 pr_warning("Overriding previous field request for all events.\n");
994
995 for (j = 0; j < PERF_TYPE_MAX; ++j) {
996 output[j].fields = 0;
997 output[j].user_set = true;
998 output[j].wildcard_set = true;
999 }
1000 }
1001
1002 tok = strtok(tok, ",");
1003 while (tok) {
1004 for (i = 0; i < imax; ++i) {
1005 if (strcmp(tok, all_output_options[i].str) == 0)
1006 break;
1007 }
1008 if (i == imax) {
1009 fprintf(stderr, "Invalid field requested.\n");
1010 rc = -EINVAL;
1011 goto out;
1012 }
1013
1014 if (type == -1) {
1015 /* add user option to all events types for
1016 * which it is valid
1017 */
1018 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1019 if (output[j].invalid_fields & all_output_options[i].field) {
1020 pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
1021 all_output_options[i].str, event_type(j));
1022 } else
1023 output[j].fields |= all_output_options[i].field;
1024 }
1025 } else {
1026 if (output[type].invalid_fields & all_output_options[i].field) {
1027 fprintf(stderr, "\'%s\' not valid for %s events.\n",
1028 all_output_options[i].str, event_type(type));
1029
1030 rc = -EINVAL;
1031 goto out;
1032 }
1033 output[type].fields |= all_output_options[i].field;
1034 }
1035
1036 tok = strtok(NULL, ",");
1037 }
1038
1039 if (type >= 0) {
1040 if (output[type].fields == 0) {
1041 pr_debug("No fields requested for %s type. "
1042 "Events will not be displayed.\n", event_type(type));
1043 }
1044 }
1045
1046out:
1047 free(str);
1048 return rc;
1049}
1050
1051/* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */
1052static int is_directory(const char *base_path, const struct dirent *dent)
1053{
1054 char path[PATH_MAX];
1055 struct stat st;
1056
1057 sprintf(path, "%s/%s", base_path, dent->d_name);
1058 if (stat(path, &st))
1059 return 0;
1060
1061 return S_ISDIR(st.st_mode);
1062}
1063
1064#define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\
1065 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \
1066 lang_next) \
1067 if ((lang_dirent.d_type == DT_DIR || \
1068 (lang_dirent.d_type == DT_UNKNOWN && \
1069 is_directory(scripts_path, &lang_dirent))) && \
1070 (strcmp(lang_dirent.d_name, ".")) && \
1071 (strcmp(lang_dirent.d_name, "..")))
1072
1073#define for_each_script(lang_path, lang_dir, script_dirent, script_next)\
1074 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \
1075 script_next) \
1076 if (script_dirent.d_type != DT_DIR && \
1077 (script_dirent.d_type != DT_UNKNOWN || \
1078 !is_directory(lang_path, &script_dirent)))
1079
1080
1081#define RECORD_SUFFIX "-record"
1082#define REPORT_SUFFIX "-report"
1083
1084struct script_desc {
1085 struct list_head node;
1086 char *name;
1087 char *half_liner;
1088 char *args;
1089};
1090
1091static LIST_HEAD(script_descs);
1092
1093static struct script_desc *script_desc__new(const char *name)
1094{
1095 struct script_desc *s = zalloc(sizeof(*s));
1096
1097 if (s != NULL && name)
1098 s->name = strdup(name);
1099
1100 return s;
1101}
1102
1103static void script_desc__delete(struct script_desc *s)
1104{
1105 zfree(&s->name);
1106 zfree(&s->half_liner);
1107 zfree(&s->args);
1108 free(s);
1109}
1110
1111static void script_desc__add(struct script_desc *s)
1112{
1113 list_add_tail(&s->node, &script_descs);
1114}
1115
1116static struct script_desc *script_desc__find(const char *name)
1117{
1118 struct script_desc *s;
1119
1120 list_for_each_entry(s, &script_descs, node)
1121 if (strcasecmp(s->name, name) == 0)
1122 return s;
1123 return NULL;
1124}
1125
1126static struct script_desc *script_desc__findnew(const char *name)
1127{
1128 struct script_desc *s = script_desc__find(name);
1129
1130 if (s)
1131 return s;
1132
1133 s = script_desc__new(name);
1134 if (!s)
1135 goto out_delete_desc;
1136
1137 script_desc__add(s);
1138
1139 return s;
1140
1141out_delete_desc:
1142 script_desc__delete(s);
1143
1144 return NULL;
1145}
1146
1147static const char *ends_with(const char *str, const char *suffix)
1148{
1149 size_t suffix_len = strlen(suffix);
1150 const char *p = str;
1151
1152 if (strlen(str) > suffix_len) {
1153 p = str + strlen(str) - suffix_len;
1154 if (!strncmp(p, suffix, suffix_len))
1155 return p;
1156 }
1157
1158 return NULL;
1159}
1160
1161static int read_script_info(struct script_desc *desc, const char *filename)
1162{
1163 char line[BUFSIZ], *p;
1164 FILE *fp;
1165
1166 fp = fopen(filename, "r");
1167 if (!fp)
1168 return -1;
1169
1170 while (fgets(line, sizeof(line), fp)) {
1171 p = ltrim(line);
1172 if (strlen(p) == 0)
1173 continue;
1174 if (*p != '#')
1175 continue;
1176 p++;
1177 if (strlen(p) && *p == '!')
1178 continue;
1179
1180 p = ltrim(p);
1181 if (strlen(p) && p[strlen(p) - 1] == '\n')
1182 p[strlen(p) - 1] = '\0';
1183
1184 if (!strncmp(p, "description:", strlen("description:"))) {
1185 p += strlen("description:");
1186 desc->half_liner = strdup(ltrim(p));
1187 continue;
1188 }
1189
1190 if (!strncmp(p, "args:", strlen("args:"))) {
1191 p += strlen("args:");
1192 desc->args = strdup(ltrim(p));
1193 continue;
1194 }
1195 }
1196
1197 fclose(fp);
1198
1199 return 0;
1200}
1201
1202static char *get_script_root(struct dirent *script_dirent, const char *suffix)
1203{
1204 char *script_root, *str;
1205
1206 script_root = strdup(script_dirent->d_name);
1207 if (!script_root)
1208 return NULL;
1209
1210 str = (char *)ends_with(script_root, suffix);
1211 if (!str) {
1212 free(script_root);
1213 return NULL;
1214 }
1215
1216 *str = '\0';
1217 return script_root;
1218}
1219
1220static int list_available_scripts(const struct option *opt __maybe_unused,
1221 const char *s __maybe_unused,
1222 int unset __maybe_unused)
1223{
1224 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1225 char scripts_path[MAXPATHLEN];
1226 DIR *scripts_dir, *lang_dir;
1227 char script_path[MAXPATHLEN];
1228 char lang_path[MAXPATHLEN];
1229 struct script_desc *desc;
1230 char first_half[BUFSIZ];
1231 char *script_root;
1232
1233 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1234
1235 scripts_dir = opendir(scripts_path);
1236 if (!scripts_dir)
1237 return -1;
1238
1239 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1240 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1241 lang_dirent.d_name);
1242 lang_dir = opendir(lang_path);
1243 if (!lang_dir)
1244 continue;
1245
1246 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1247 script_root = get_script_root(&script_dirent, REPORT_SUFFIX);
1248 if (script_root) {
1249 desc = script_desc__findnew(script_root);
1250 snprintf(script_path, MAXPATHLEN, "%s/%s",
1251 lang_path, script_dirent.d_name);
1252 read_script_info(desc, script_path);
1253 free(script_root);
1254 }
1255 }
1256 }
1257
1258 fprintf(stdout, "List of available trace scripts:\n");
1259 list_for_each_entry(desc, &script_descs, node) {
1260 sprintf(first_half, "%s %s", desc->name,
1261 desc->args ? desc->args : "");
1262 fprintf(stdout, " %-36s %s\n", first_half,
1263 desc->half_liner ? desc->half_liner : "");
1264 }
1265
1266 exit(0);
1267}
1268
1269/*
1270 * Some scripts specify the required events in their "xxx-record" file,
1271 * this function will check if the events in perf.data match those
1272 * mentioned in the "xxx-record".
1273 *
1274 * Fixme: All existing "xxx-record" are all in good formats "-e event ",
1275 * which is covered well now. And new parsing code should be added to
1276 * cover the future complexing formats like event groups etc.
1277 */
1278static int check_ev_match(char *dir_name, char *scriptname,
1279 struct perf_session *session)
1280{
1281 char filename[MAXPATHLEN], evname[128];
1282 char line[BUFSIZ], *p;
1283 struct perf_evsel *pos;
1284 int match, len;
1285 FILE *fp;
1286
1287 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname);
1288
1289 fp = fopen(filename, "r");
1290 if (!fp)
1291 return -1;
1292
1293 while (fgets(line, sizeof(line), fp)) {
1294 p = ltrim(line);
1295 if (*p == '#')
1296 continue;
1297
1298 while (strlen(p)) {
1299 p = strstr(p, "-e");
1300 if (!p)
1301 break;
1302
1303 p += 2;
1304 p = ltrim(p);
1305 len = strcspn(p, " \t");
1306 if (!len)
1307 break;
1308
1309 snprintf(evname, len + 1, "%s", p);
1310
1311 match = 0;
1312 evlist__for_each(session->evlist, pos) {
1313 if (!strcmp(perf_evsel__name(pos), evname)) {
1314 match = 1;
1315 break;
1316 }
1317 }
1318
1319 if (!match) {
1320 fclose(fp);
1321 return -1;
1322 }
1323 }
1324 }
1325
1326 fclose(fp);
1327 return 0;
1328}
1329
1330/*
1331 * Return -1 if none is found, otherwise the actual scripts number.
1332 *
1333 * Currently the only user of this function is the script browser, which
1334 * will list all statically runnable scripts, select one, execute it and
1335 * show the output in a perf browser.
1336 */
1337int find_scripts(char **scripts_array, char **scripts_path_array)
1338{
1339 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1340 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
1341 DIR *scripts_dir, *lang_dir;
1342 struct perf_session *session;
1343 struct perf_data_file file = {
1344 .path = input_name,
1345 .mode = PERF_DATA_MODE_READ,
1346 };
1347 char *temp;
1348 int i = 0;
1349
1350 session = perf_session__new(&file, false, NULL);
1351 if (!session)
1352 return -1;
1353
1354 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1355
1356 scripts_dir = opendir(scripts_path);
1357 if (!scripts_dir) {
1358 perf_session__delete(session);
1359 return -1;
1360 }
1361
1362 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1363 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path,
1364 lang_dirent.d_name);
1365#ifdef NO_LIBPERL
1366 if (strstr(lang_path, "perl"))
1367 continue;
1368#endif
1369#ifdef NO_LIBPYTHON
1370 if (strstr(lang_path, "python"))
1371 continue;
1372#endif
1373
1374 lang_dir = opendir(lang_path);
1375 if (!lang_dir)
1376 continue;
1377
1378 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1379 /* Skip those real time scripts: xxxtop.p[yl] */
1380 if (strstr(script_dirent.d_name, "top."))
1381 continue;
1382 sprintf(scripts_path_array[i], "%s/%s", lang_path,
1383 script_dirent.d_name);
1384 temp = strchr(script_dirent.d_name, '.');
1385 snprintf(scripts_array[i],
1386 (temp - script_dirent.d_name) + 1,
1387 "%s", script_dirent.d_name);
1388
1389 if (check_ev_match(lang_path,
1390 scripts_array[i], session))
1391 continue;
1392
1393 i++;
1394 }
1395 closedir(lang_dir);
1396 }
1397
1398 closedir(scripts_dir);
1399 perf_session__delete(session);
1400 return i;
1401}
1402
1403static char *get_script_path(const char *script_root, const char *suffix)
1404{
1405 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1406 char scripts_path[MAXPATHLEN];
1407 char script_path[MAXPATHLEN];
1408 DIR *scripts_dir, *lang_dir;
1409 char lang_path[MAXPATHLEN];
1410 char *__script_root;
1411
1412 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
1413
1414 scripts_dir = opendir(scripts_path);
1415 if (!scripts_dir)
1416 return NULL;
1417
1418 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1419 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1420 lang_dirent.d_name);
1421 lang_dir = opendir(lang_path);
1422 if (!lang_dir)
1423 continue;
1424
1425 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1426 __script_root = get_script_root(&script_dirent, suffix);
1427 if (__script_root && !strcmp(script_root, __script_root)) {
1428 free(__script_root);
1429 closedir(lang_dir);
1430 closedir(scripts_dir);
1431 snprintf(script_path, MAXPATHLEN, "%s/%s",
1432 lang_path, script_dirent.d_name);
1433 return strdup(script_path);
1434 }
1435 free(__script_root);
1436 }
1437 closedir(lang_dir);
1438 }
1439 closedir(scripts_dir);
1440
1441 return NULL;
1442}
1443
1444static bool is_top_script(const char *script_path)
1445{
1446 return ends_with(script_path, "top") == NULL ? false : true;
1447}
1448
1449static int has_required_arg(char *script_path)
1450{
1451 struct script_desc *desc;
1452 int n_args = 0;
1453 char *p;
1454
1455 desc = script_desc__new(NULL);
1456
1457 if (read_script_info(desc, script_path))
1458 goto out;
1459
1460 if (!desc->args)
1461 goto out;
1462
1463 for (p = desc->args; *p; p++)
1464 if (*p == '<')
1465 n_args++;
1466out:
1467 script_desc__delete(desc);
1468
1469 return n_args;
1470}
1471
1472static int have_cmd(int argc, const char **argv)
1473{
1474 char **__argv = malloc(sizeof(const char *) * argc);
1475
1476 if (!__argv) {
1477 pr_err("malloc failed\n");
1478 return -1;
1479 }
1480
1481 memcpy(__argv, argv, sizeof(const char *) * argc);
1482 argc = parse_options(argc, (const char **)__argv, record_options,
1483 NULL, PARSE_OPT_STOP_AT_NON_OPTION);
1484 free(__argv);
1485
1486 system_wide = (argc == 0);
1487
1488 return 0;
1489}
1490
1491int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
1492{
1493 bool show_full_info = false;
1494 bool header = false;
1495 bool header_only = false;
1496 char *rec_script_path = NULL;
1497 char *rep_script_path = NULL;
1498 struct perf_session *session;
1499 char *script_path = NULL;
1500 const char **__argv;
1501 int i, j, err;
1502 struct perf_script script = {
1503 .tool = {
1504 .sample = process_sample_event,
1505 .mmap = perf_event__process_mmap,
1506 .mmap2 = perf_event__process_mmap2,
1507 .comm = perf_event__process_comm,
1508 .exit = perf_event__process_exit,
1509 .fork = perf_event__process_fork,
1510 .attr = process_attr,
1511 .tracing_data = perf_event__process_tracing_data,
1512 .build_id = perf_event__process_build_id,
1513 .ordered_samples = true,
1514 .ordering_requires_timestamps = true,
1515 },
1516 };
1517 const struct option options[] = {
1518 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1519 "dump raw trace in ASCII"),
1520 OPT_INCR('v', "verbose", &verbose,
1521 "be more verbose (show symbol address, etc)"),
1522 OPT_BOOLEAN('L', "Latency", &latency_format,
1523 "show latency attributes (irqs/preemption disabled, etc)"),
1524 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
1525 list_available_scripts),
1526 OPT_CALLBACK('s', "script", NULL, "name",
1527 "script file name (lang:script name, script name, or *)",
1528 parse_scriptname),
1529 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
1530 "generate perf-script.xx script in specified language"),
1531 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1532 OPT_BOOLEAN('d', "debug-mode", &debug_mode,
1533 "do various checks like samples ordering and lost events"),
1534 OPT_BOOLEAN(0, "header", &header, "Show data header."),
1535 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."),
1536 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1537 "file", "vmlinux pathname"),
1538 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1539 "file", "kallsyms pathname"),
1540 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
1541 "When printing symbols do not display call chain"),
1542 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
1543 "Look for files with symbols relative to this directory"),
1544 OPT_CALLBACK('f', "fields", NULL, "str",
1545 "comma separated output fields prepend with 'type:'. "
1546 "Valid types: hw,sw,trace,raw. "
1547 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
1548 "addr,symoff", parse_output_fields),
1549 OPT_BOOLEAN('a', "all-cpus", &system_wide,
1550 "system-wide collection from all CPUs"),
1551 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1552 "only consider these symbols"),
1553 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
1554 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1555 "only display events for these comms"),
1556 OPT_BOOLEAN('I', "show-info", &show_full_info,
1557 "display extended information from perf.data file"),
1558 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
1559 "Show the path of [kernel.kallsyms]"),
1560 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events,
1561 "Show the fork/comm/exit events"),
1562 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
1563 "Show the mmap events"),
1564 OPT_END()
1565 };
1566 const char * const script_usage[] = {
1567 "perf script [<options>]",
1568 "perf script [<options>] record <script> [<record-options>] <command>",
1569 "perf script [<options>] report <script> [script-args]",
1570 "perf script [<options>] <script> [<record-options>] <command>",
1571 "perf script [<options>] <top-script> [script-args]",
1572 NULL
1573 };
1574 struct perf_data_file file = {
1575 .mode = PERF_DATA_MODE_READ,
1576 };
1577
1578 setup_scripting();
1579
1580 argc = parse_options(argc, argv, options, script_usage,
1581 PARSE_OPT_STOP_AT_NON_OPTION);
1582
1583 file.path = input_name;
1584
1585 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
1586 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
1587 if (!rec_script_path)
1588 return cmd_record(argc, argv, NULL);
1589 }
1590
1591 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
1592 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
1593 if (!rep_script_path) {
1594 fprintf(stderr,
1595 "Please specify a valid report script"
1596 "(see 'perf script -l' for listing)\n");
1597 return -1;
1598 }
1599 }
1600
1601 /* make sure PERF_EXEC_PATH is set for scripts */
1602 perf_set_argv_exec_path(perf_exec_path());
1603
1604 if (argc && !script_name && !rec_script_path && !rep_script_path) {
1605 int live_pipe[2];
1606 int rep_args;
1607 pid_t pid;
1608
1609 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
1610 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
1611
1612 if (!rec_script_path && !rep_script_path) {
1613 fprintf(stderr, " Couldn't find script %s\n\n See perf"
1614 " script -l for available scripts.\n", argv[0]);
1615 usage_with_options(script_usage, options);
1616 }
1617
1618 if (is_top_script(argv[0])) {
1619 rep_args = argc - 1;
1620 } else {
1621 int rec_args;
1622
1623 rep_args = has_required_arg(rep_script_path);
1624 rec_args = (argc - 1) - rep_args;
1625 if (rec_args < 0) {
1626 fprintf(stderr, " %s script requires options."
1627 "\n\n See perf script -l for available "
1628 "scripts and options.\n", argv[0]);
1629 usage_with_options(script_usage, options);
1630 }
1631 }
1632
1633 if (pipe(live_pipe) < 0) {
1634 perror("failed to create pipe");
1635 return -1;
1636 }
1637
1638 pid = fork();
1639 if (pid < 0) {
1640 perror("failed to fork");
1641 return -1;
1642 }
1643
1644 if (!pid) {
1645 j = 0;
1646
1647 dup2(live_pipe[1], 1);
1648 close(live_pipe[0]);
1649
1650 if (is_top_script(argv[0])) {
1651 system_wide = true;
1652 } else if (!system_wide) {
1653 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
1654 err = -1;
1655 goto out;
1656 }
1657 }
1658
1659 __argv = malloc((argc + 6) * sizeof(const char *));
1660 if (!__argv) {
1661 pr_err("malloc failed\n");
1662 err = -ENOMEM;
1663 goto out;
1664 }
1665
1666 __argv[j++] = "/bin/sh";
1667 __argv[j++] = rec_script_path;
1668 if (system_wide)
1669 __argv[j++] = "-a";
1670 __argv[j++] = "-q";
1671 __argv[j++] = "-o";
1672 __argv[j++] = "-";
1673 for (i = rep_args + 1; i < argc; i++)
1674 __argv[j++] = argv[i];
1675 __argv[j++] = NULL;
1676
1677 execvp("/bin/sh", (char **)__argv);
1678 free(__argv);
1679 exit(-1);
1680 }
1681
1682 dup2(live_pipe[0], 0);
1683 close(live_pipe[1]);
1684
1685 __argv = malloc((argc + 4) * sizeof(const char *));
1686 if (!__argv) {
1687 pr_err("malloc failed\n");
1688 err = -ENOMEM;
1689 goto out;
1690 }
1691
1692 j = 0;
1693 __argv[j++] = "/bin/sh";
1694 __argv[j++] = rep_script_path;
1695 for (i = 1; i < rep_args + 1; i++)
1696 __argv[j++] = argv[i];
1697 __argv[j++] = "-i";
1698 __argv[j++] = "-";
1699 __argv[j++] = NULL;
1700
1701 execvp("/bin/sh", (char **)__argv);
1702 free(__argv);
1703 exit(-1);
1704 }
1705
1706 if (rec_script_path)
1707 script_path = rec_script_path;
1708 if (rep_script_path)
1709 script_path = rep_script_path;
1710
1711 if (script_path) {
1712 j = 0;
1713
1714 if (!rec_script_path)
1715 system_wide = false;
1716 else if (!system_wide) {
1717 if (have_cmd(argc - 1, &argv[1]) != 0) {
1718 err = -1;
1719 goto out;
1720 }
1721 }
1722
1723 __argv = malloc((argc + 2) * sizeof(const char *));
1724 if (!__argv) {
1725 pr_err("malloc failed\n");
1726 err = -ENOMEM;
1727 goto out;
1728 }
1729
1730 __argv[j++] = "/bin/sh";
1731 __argv[j++] = script_path;
1732 if (system_wide)
1733 __argv[j++] = "-a";
1734 for (i = 2; i < argc; i++)
1735 __argv[j++] = argv[i];
1736 __argv[j++] = NULL;
1737
1738 execvp("/bin/sh", (char **)__argv);
1739 free(__argv);
1740 exit(-1);
1741 }
1742
1743 if (symbol__init() < 0)
1744 return -1;
1745 if (!script_name)
1746 setup_pager();
1747
1748 session = perf_session__new(&file, false, &script.tool);
1749 if (session == NULL)
1750 return -ENOMEM;
1751
1752 if (header || header_only) {
1753 perf_session__fprintf_info(session, stdout, show_full_info);
1754 if (header_only)
1755 return 0;
1756 }
1757
1758 script.session = session;
1759
1760 if (cpu_list) {
1761 if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap))
1762 return -1;
1763 }
1764
1765 if (!no_callchain)
1766 symbol_conf.use_callchain = true;
1767 else
1768 symbol_conf.use_callchain = false;
1769
1770 if (generate_script_lang) {
1771 struct stat perf_stat;
1772 int input;
1773
1774 if (output_set_by_user()) {
1775 fprintf(stderr,
1776 "custom fields not supported for generated scripts");
1777 return -1;
1778 }
1779
1780 input = open(file.path, O_RDONLY); /* input_name */
1781 if (input < 0) {
1782 perror("failed to open file");
1783 return -1;
1784 }
1785
1786 err = fstat(input, &perf_stat);
1787 if (err < 0) {
1788 perror("failed to stat file");
1789 return -1;
1790 }
1791
1792 if (!perf_stat.st_size) {
1793 fprintf(stderr, "zero-sized file, nothing to do!\n");
1794 return 0;
1795 }
1796
1797 scripting_ops = script_spec__lookup(generate_script_lang);
1798 if (!scripting_ops) {
1799 fprintf(stderr, "invalid language specifier");
1800 return -1;
1801 }
1802
1803 err = scripting_ops->generate_script(session->tevent.pevent,
1804 "perf-script");
1805 goto out;
1806 }
1807
1808 if (script_name) {
1809 err = scripting_ops->start_script(script_name, argc, argv);
1810 if (err)
1811 goto out;
1812 pr_debug("perf script started with script %s\n\n", script_name);
1813 }
1814
1815
1816 err = perf_session__check_output_opt(session);
1817 if (err < 0)
1818 goto out;
1819
1820 err = __cmd_script(&script);
1821
1822 perf_session__delete(session);
1823 cleanup_scripting();
1824out:
1825 return err;
1826}