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Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-zesty-kernel.git] / tools / perf / builtin-script.c
1 #include "builtin.h"
2
3 #include "perf.h"
4 #include "util/cache.h"
5 #include "util/debug.h"
6 #include <subcmd/exec-cmd.h>
7 #include "util/header.h"
8 #include <subcmd/parse-options.h>
9 #include "util/perf_regs.h"
10 #include "util/session.h"
11 #include "util/tool.h"
12 #include "util/symbol.h"
13 #include "util/thread.h"
14 #include "util/trace-event.h"
15 #include "util/util.h"
16 #include "util/evlist.h"
17 #include "util/evsel.h"
18 #include "util/sort.h"
19 #include "util/data.h"
20 #include "util/auxtrace.h"
21 #include "util/cpumap.h"
22 #include "util/thread_map.h"
23 #include "util/stat.h"
24 #include <linux/bitmap.h>
25 #include "asm/bug.h"
26
27 static char const *script_name;
28 static char const *generate_script_lang;
29 static bool debug_mode;
30 static u64 last_timestamp;
31 static u64 nr_unordered;
32 static bool no_callchain;
33 static bool latency_format;
34 static bool system_wide;
35 static bool print_flags;
36 static bool nanosecs;
37 static const char *cpu_list;
38 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
39 static struct perf_stat_config stat_config;
40
41 unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
42
43 enum perf_output_field {
44 PERF_OUTPUT_COMM = 1U << 0,
45 PERF_OUTPUT_TID = 1U << 1,
46 PERF_OUTPUT_PID = 1U << 2,
47 PERF_OUTPUT_TIME = 1U << 3,
48 PERF_OUTPUT_CPU = 1U << 4,
49 PERF_OUTPUT_EVNAME = 1U << 5,
50 PERF_OUTPUT_TRACE = 1U << 6,
51 PERF_OUTPUT_IP = 1U << 7,
52 PERF_OUTPUT_SYM = 1U << 8,
53 PERF_OUTPUT_DSO = 1U << 9,
54 PERF_OUTPUT_ADDR = 1U << 10,
55 PERF_OUTPUT_SYMOFFSET = 1U << 11,
56 PERF_OUTPUT_SRCLINE = 1U << 12,
57 PERF_OUTPUT_PERIOD = 1U << 13,
58 PERF_OUTPUT_IREGS = 1U << 14,
59 PERF_OUTPUT_BRSTACK = 1U << 15,
60 PERF_OUTPUT_BRSTACKSYM = 1U << 16,
61 };
62
63 struct output_option {
64 const char *str;
65 enum perf_output_field field;
66 } all_output_options[] = {
67 {.str = "comm", .field = PERF_OUTPUT_COMM},
68 {.str = "tid", .field = PERF_OUTPUT_TID},
69 {.str = "pid", .field = PERF_OUTPUT_PID},
70 {.str = "time", .field = PERF_OUTPUT_TIME},
71 {.str = "cpu", .field = PERF_OUTPUT_CPU},
72 {.str = "event", .field = PERF_OUTPUT_EVNAME},
73 {.str = "trace", .field = PERF_OUTPUT_TRACE},
74 {.str = "ip", .field = PERF_OUTPUT_IP},
75 {.str = "sym", .field = PERF_OUTPUT_SYM},
76 {.str = "dso", .field = PERF_OUTPUT_DSO},
77 {.str = "addr", .field = PERF_OUTPUT_ADDR},
78 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
79 {.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
80 {.str = "period", .field = PERF_OUTPUT_PERIOD},
81 {.str = "iregs", .field = PERF_OUTPUT_IREGS},
82 {.str = "brstack", .field = PERF_OUTPUT_BRSTACK},
83 {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM},
84 };
85
86 /* default set to maintain compatibility with current format */
87 static struct {
88 bool user_set;
89 bool wildcard_set;
90 unsigned int print_ip_opts;
91 u64 fields;
92 u64 invalid_fields;
93 } output[PERF_TYPE_MAX] = {
94
95 [PERF_TYPE_HARDWARE] = {
96 .user_set = false,
97
98 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
99 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
100 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
101 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
102 PERF_OUTPUT_PERIOD,
103
104 .invalid_fields = PERF_OUTPUT_TRACE,
105 },
106
107 [PERF_TYPE_SOFTWARE] = {
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 PERF_OUTPUT_PERIOD,
115
116 .invalid_fields = PERF_OUTPUT_TRACE,
117 },
118
119 [PERF_TYPE_TRACEPOINT] = {
120 .user_set = false,
121
122 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
123 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
124 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE,
125 },
126
127 [PERF_TYPE_RAW] = {
128 .user_set = false,
129
130 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
131 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
132 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
133 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
134 PERF_OUTPUT_PERIOD,
135
136 .invalid_fields = PERF_OUTPUT_TRACE,
137 },
138
139 [PERF_TYPE_BREAKPOINT] = {
140 .user_set = false,
141
142 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
143 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
144 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
145 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
146 PERF_OUTPUT_PERIOD,
147
148 .invalid_fields = PERF_OUTPUT_TRACE,
149 },
150 };
151
152 static bool output_set_by_user(void)
153 {
154 int j;
155 for (j = 0; j < PERF_TYPE_MAX; ++j) {
156 if (output[j].user_set)
157 return true;
158 }
159 return false;
160 }
161
162 static const char *output_field2str(enum perf_output_field field)
163 {
164 int i, imax = ARRAY_SIZE(all_output_options);
165 const char *str = "";
166
167 for (i = 0; i < imax; ++i) {
168 if (all_output_options[i].field == field) {
169 str = all_output_options[i].str;
170 break;
171 }
172 }
173 return str;
174 }
175
176 #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x)
177
178 static int perf_evsel__do_check_stype(struct perf_evsel *evsel,
179 u64 sample_type, const char *sample_msg,
180 enum perf_output_field field,
181 bool allow_user_set)
182 {
183 struct perf_event_attr *attr = &evsel->attr;
184 int type = attr->type;
185 const char *evname;
186
187 if (attr->sample_type & sample_type)
188 return 0;
189
190 if (output[type].user_set) {
191 if (allow_user_set)
192 return 0;
193 evname = perf_evsel__name(evsel);
194 pr_err("Samples for '%s' event do not have %s attribute set. "
195 "Cannot print '%s' field.\n",
196 evname, sample_msg, output_field2str(field));
197 return -1;
198 }
199
200 /* user did not ask for it explicitly so remove from the default list */
201 output[type].fields &= ~field;
202 evname = perf_evsel__name(evsel);
203 pr_debug("Samples for '%s' event do not have %s attribute set. "
204 "Skipping '%s' field.\n",
205 evname, sample_msg, output_field2str(field));
206
207 return 0;
208 }
209
210 static int perf_evsel__check_stype(struct perf_evsel *evsel,
211 u64 sample_type, const char *sample_msg,
212 enum perf_output_field field)
213 {
214 return perf_evsel__do_check_stype(evsel, sample_type, sample_msg, field,
215 false);
216 }
217
218 static int perf_evsel__check_attr(struct perf_evsel *evsel,
219 struct perf_session *session)
220 {
221 struct perf_event_attr *attr = &evsel->attr;
222 bool allow_user_set;
223
224 if (perf_header__has_feat(&session->header, HEADER_STAT))
225 return 0;
226
227 allow_user_set = perf_header__has_feat(&session->header,
228 HEADER_AUXTRACE);
229
230 if (PRINT_FIELD(TRACE) &&
231 !perf_session__has_traces(session, "record -R"))
232 return -EINVAL;
233
234 if (PRINT_FIELD(IP)) {
235 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP",
236 PERF_OUTPUT_IP))
237 return -EINVAL;
238 }
239
240 if (PRINT_FIELD(ADDR) &&
241 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR",
242 PERF_OUTPUT_ADDR, allow_user_set))
243 return -EINVAL;
244
245 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
246 pr_err("Display of symbols requested but neither sample IP nor "
247 "sample address\nis selected. Hence, no addresses to convert "
248 "to symbols.\n");
249 return -EINVAL;
250 }
251 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) {
252 pr_err("Display of offsets requested but symbol is not"
253 "selected.\n");
254 return -EINVAL;
255 }
256 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
257 pr_err("Display of DSO requested but neither sample IP nor "
258 "sample address\nis selected. Hence, no addresses to convert "
259 "to DSO.\n");
260 return -EINVAL;
261 }
262 if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) {
263 pr_err("Display of source line number requested but sample IP is not\n"
264 "selected. Hence, no address to lookup the source line number.\n");
265 return -EINVAL;
266 }
267
268 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
269 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
270 PERF_OUTPUT_TID|PERF_OUTPUT_PID))
271 return -EINVAL;
272
273 if (PRINT_FIELD(TIME) &&
274 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME",
275 PERF_OUTPUT_TIME))
276 return -EINVAL;
277
278 if (PRINT_FIELD(CPU) &&
279 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_CPU, "CPU",
280 PERF_OUTPUT_CPU, allow_user_set))
281 return -EINVAL;
282
283 if (PRINT_FIELD(PERIOD) &&
284 perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD",
285 PERF_OUTPUT_PERIOD))
286 return -EINVAL;
287
288 if (PRINT_FIELD(IREGS) &&
289 perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_INTR, "IREGS",
290 PERF_OUTPUT_IREGS))
291 return -EINVAL;
292
293 return 0;
294 }
295
296 static void set_print_ip_opts(struct perf_event_attr *attr)
297 {
298 unsigned int type = attr->type;
299
300 output[type].print_ip_opts = 0;
301 if (PRINT_FIELD(IP))
302 output[type].print_ip_opts |= PRINT_IP_OPT_IP;
303
304 if (PRINT_FIELD(SYM))
305 output[type].print_ip_opts |= PRINT_IP_OPT_SYM;
306
307 if (PRINT_FIELD(DSO))
308 output[type].print_ip_opts |= PRINT_IP_OPT_DSO;
309
310 if (PRINT_FIELD(SYMOFFSET))
311 output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET;
312
313 if (PRINT_FIELD(SRCLINE))
314 output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE;
315 }
316
317 /*
318 * verify all user requested events exist and the samples
319 * have the expected data
320 */
321 static int perf_session__check_output_opt(struct perf_session *session)
322 {
323 int j;
324 struct perf_evsel *evsel;
325
326 for (j = 0; j < PERF_TYPE_MAX; ++j) {
327 evsel = perf_session__find_first_evtype(session, j);
328
329 /*
330 * even if fields is set to 0 (ie., show nothing) event must
331 * exist if user explicitly includes it on the command line
332 */
333 if (!evsel && output[j].user_set && !output[j].wildcard_set) {
334 pr_err("%s events do not exist. "
335 "Remove corresponding -f option to proceed.\n",
336 event_type(j));
337 return -1;
338 }
339
340 if (evsel && output[j].fields &&
341 perf_evsel__check_attr(evsel, session))
342 return -1;
343
344 if (evsel == NULL)
345 continue;
346
347 set_print_ip_opts(&evsel->attr);
348 }
349
350 if (!no_callchain) {
351 bool use_callchain = false;
352
353 evlist__for_each(session->evlist, evsel) {
354 if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) {
355 use_callchain = true;
356 break;
357 }
358 }
359 if (!use_callchain)
360 symbol_conf.use_callchain = false;
361 }
362
363 /*
364 * set default for tracepoints to print symbols only
365 * if callchains are present
366 */
367 if (symbol_conf.use_callchain &&
368 !output[PERF_TYPE_TRACEPOINT].user_set) {
369 struct perf_event_attr *attr;
370
371 j = PERF_TYPE_TRACEPOINT;
372 evsel = perf_session__find_first_evtype(session, j);
373 if (evsel == NULL)
374 goto out;
375
376 attr = &evsel->attr;
377
378 if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) {
379 output[j].fields |= PERF_OUTPUT_IP;
380 output[j].fields |= PERF_OUTPUT_SYM;
381 output[j].fields |= PERF_OUTPUT_DSO;
382 set_print_ip_opts(attr);
383 }
384 }
385
386 out:
387 return 0;
388 }
389
390 static void print_sample_iregs(union perf_event *event __maybe_unused,
391 struct perf_sample *sample,
392 struct thread *thread __maybe_unused,
393 struct perf_event_attr *attr)
394 {
395 struct regs_dump *regs = &sample->intr_regs;
396 uint64_t mask = attr->sample_regs_intr;
397 unsigned i = 0, r;
398
399 if (!regs)
400 return;
401
402 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
403 u64 val = regs->regs[i++];
404 printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val);
405 }
406 }
407
408 static void print_sample_start(struct perf_sample *sample,
409 struct thread *thread,
410 struct perf_evsel *evsel)
411 {
412 struct perf_event_attr *attr = &evsel->attr;
413 unsigned long secs;
414 unsigned long usecs;
415 unsigned long long nsecs;
416
417 if (PRINT_FIELD(COMM)) {
418 if (latency_format)
419 printf("%8.8s ", thread__comm_str(thread));
420 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
421 printf("%s ", thread__comm_str(thread));
422 else
423 printf("%16s ", thread__comm_str(thread));
424 }
425
426 if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
427 printf("%5d/%-5d ", sample->pid, sample->tid);
428 else if (PRINT_FIELD(PID))
429 printf("%5d ", sample->pid);
430 else if (PRINT_FIELD(TID))
431 printf("%5d ", sample->tid);
432
433 if (PRINT_FIELD(CPU)) {
434 if (latency_format)
435 printf("%3d ", sample->cpu);
436 else
437 printf("[%03d] ", sample->cpu);
438 }
439
440 if (PRINT_FIELD(TIME)) {
441 nsecs = sample->time;
442 secs = nsecs / NSECS_PER_SEC;
443 nsecs -= secs * NSECS_PER_SEC;
444 usecs = nsecs / NSECS_PER_USEC;
445 if (nanosecs)
446 printf("%5lu.%09llu: ", secs, nsecs);
447 else
448 printf("%5lu.%06lu: ", secs, usecs);
449 }
450 }
451
452 static inline char
453 mispred_str(struct branch_entry *br)
454 {
455 if (!(br->flags.mispred || br->flags.predicted))
456 return '-';
457
458 return br->flags.predicted ? 'P' : 'M';
459 }
460
461 static void print_sample_brstack(union perf_event *event __maybe_unused,
462 struct perf_sample *sample,
463 struct thread *thread __maybe_unused,
464 struct perf_event_attr *attr __maybe_unused)
465 {
466 struct branch_stack *br = sample->branch_stack;
467 u64 i;
468
469 if (!(br && br->nr))
470 return;
471
472 for (i = 0; i < br->nr; i++) {
473 printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ",
474 br->entries[i].from,
475 br->entries[i].to,
476 mispred_str( br->entries + i),
477 br->entries[i].flags.in_tx? 'X' : '-',
478 br->entries[i].flags.abort? 'A' : '-',
479 br->entries[i].flags.cycles);
480 }
481 }
482
483 static void print_sample_brstacksym(union perf_event *event __maybe_unused,
484 struct perf_sample *sample,
485 struct thread *thread __maybe_unused,
486 struct perf_event_attr *attr __maybe_unused)
487 {
488 struct branch_stack *br = sample->branch_stack;
489 struct addr_location alf, alt;
490 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
491 u64 i, from, to;
492
493 if (!(br && br->nr))
494 return;
495
496 for (i = 0; i < br->nr; i++) {
497
498 memset(&alf, 0, sizeof(alf));
499 memset(&alt, 0, sizeof(alt));
500 from = br->entries[i].from;
501 to = br->entries[i].to;
502
503 thread__find_addr_map(thread, cpumode, MAP__FUNCTION, from, &alf);
504 if (alf.map)
505 alf.sym = map__find_symbol(alf.map, alf.addr, NULL);
506
507 thread__find_addr_map(thread, cpumode, MAP__FUNCTION, to, &alt);
508 if (alt.map)
509 alt.sym = map__find_symbol(alt.map, alt.addr, NULL);
510
511 symbol__fprintf_symname_offs(alf.sym, &alf, stdout);
512 putchar('/');
513 symbol__fprintf_symname_offs(alt.sym, &alt, stdout);
514 printf("/%c/%c/%c/%d ",
515 mispred_str( br->entries + i),
516 br->entries[i].flags.in_tx? 'X' : '-',
517 br->entries[i].flags.abort? 'A' : '-',
518 br->entries[i].flags.cycles);
519 }
520 }
521
522
523 static void print_sample_addr(union perf_event *event,
524 struct perf_sample *sample,
525 struct thread *thread,
526 struct perf_event_attr *attr)
527 {
528 struct addr_location al;
529
530 printf("%16" PRIx64, sample->addr);
531
532 if (!sample_addr_correlates_sym(attr))
533 return;
534
535 perf_event__preprocess_sample_addr(event, sample, thread, &al);
536
537 if (PRINT_FIELD(SYM)) {
538 printf(" ");
539 if (PRINT_FIELD(SYMOFFSET))
540 symbol__fprintf_symname_offs(al.sym, &al, stdout);
541 else
542 symbol__fprintf_symname(al.sym, stdout);
543 }
544
545 if (PRINT_FIELD(DSO)) {
546 printf(" (");
547 map__fprintf_dsoname(al.map, stdout);
548 printf(")");
549 }
550 }
551
552 static void print_sample_bts(union perf_event *event,
553 struct perf_sample *sample,
554 struct perf_evsel *evsel,
555 struct thread *thread,
556 struct addr_location *al)
557 {
558 struct perf_event_attr *attr = &evsel->attr;
559 bool print_srcline_last = false;
560
561 /* print branch_from information */
562 if (PRINT_FIELD(IP)) {
563 unsigned int print_opts = output[attr->type].print_ip_opts;
564
565 if (symbol_conf.use_callchain && sample->callchain) {
566 printf("\n");
567 } else {
568 printf(" ");
569 if (print_opts & PRINT_IP_OPT_SRCLINE) {
570 print_srcline_last = true;
571 print_opts &= ~PRINT_IP_OPT_SRCLINE;
572 }
573 }
574 perf_evsel__print_ip(evsel, sample, al, print_opts,
575 scripting_max_stack);
576 }
577
578 /* print branch_to information */
579 if (PRINT_FIELD(ADDR) ||
580 ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
581 !output[attr->type].user_set)) {
582 printf(" => ");
583 print_sample_addr(event, sample, thread, attr);
584 }
585
586 if (print_srcline_last)
587 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
588
589 printf("\n");
590 }
591
592 static void print_sample_flags(u32 flags)
593 {
594 const char *chars = PERF_IP_FLAG_CHARS;
595 const int n = strlen(PERF_IP_FLAG_CHARS);
596 char str[33];
597 int i, pos = 0;
598
599 for (i = 0; i < n; i++, flags >>= 1) {
600 if (flags & 1)
601 str[pos++] = chars[i];
602 }
603 for (; i < 32; i++, flags >>= 1) {
604 if (flags & 1)
605 str[pos++] = '?';
606 }
607 str[pos] = 0;
608 printf(" %-4s ", str);
609 }
610
611 struct perf_script {
612 struct perf_tool tool;
613 struct perf_session *session;
614 bool show_task_events;
615 bool show_mmap_events;
616 bool show_switch_events;
617 bool allocated;
618 struct cpu_map *cpus;
619 struct thread_map *threads;
620 int name_width;
621 };
622
623 static int perf_evlist__max_name_len(struct perf_evlist *evlist)
624 {
625 struct perf_evsel *evsel;
626 int max = 0;
627
628 evlist__for_each(evlist, evsel) {
629 int len = strlen(perf_evsel__name(evsel));
630
631 max = MAX(len, max);
632 }
633
634 return max;
635 }
636
637 static void process_event(struct perf_script *script, union perf_event *event,
638 struct perf_sample *sample, struct perf_evsel *evsel,
639 struct addr_location *al)
640 {
641 struct thread *thread = al->thread;
642 struct perf_event_attr *attr = &evsel->attr;
643
644 if (output[attr->type].fields == 0)
645 return;
646
647 print_sample_start(sample, thread, evsel);
648
649 if (PRINT_FIELD(PERIOD))
650 printf("%10" PRIu64 " ", sample->period);
651
652 if (PRINT_FIELD(EVNAME)) {
653 const char *evname = perf_evsel__name(evsel);
654
655 if (!script->name_width)
656 script->name_width = perf_evlist__max_name_len(script->session->evlist);
657
658 printf("%*s: ", script->name_width,
659 evname ? evname : "[unknown]");
660 }
661
662 if (print_flags)
663 print_sample_flags(sample->flags);
664
665 if (is_bts_event(attr)) {
666 print_sample_bts(event, sample, evsel, thread, al);
667 return;
668 }
669
670 if (PRINT_FIELD(TRACE))
671 event_format__print(evsel->tp_format, sample->cpu,
672 sample->raw_data, sample->raw_size);
673 if (PRINT_FIELD(ADDR))
674 print_sample_addr(event, sample, thread, attr);
675
676 if (PRINT_FIELD(IP)) {
677 if (!symbol_conf.use_callchain)
678 printf(" ");
679 else
680 printf("\n");
681
682 perf_evsel__print_ip(evsel, sample, al,
683 output[attr->type].print_ip_opts,
684 scripting_max_stack);
685 }
686
687 if (PRINT_FIELD(IREGS))
688 print_sample_iregs(event, sample, thread, attr);
689
690 if (PRINT_FIELD(BRSTACK))
691 print_sample_brstack(event, sample, thread, attr);
692 else if (PRINT_FIELD(BRSTACKSYM))
693 print_sample_brstacksym(event, sample, thread, attr);
694
695 printf("\n");
696 }
697
698 static struct scripting_ops *scripting_ops;
699
700 static void __process_stat(struct perf_evsel *counter, u64 tstamp)
701 {
702 int nthreads = thread_map__nr(counter->threads);
703 int ncpus = perf_evsel__nr_cpus(counter);
704 int cpu, thread;
705 static int header_printed;
706
707 if (counter->system_wide)
708 nthreads = 1;
709
710 if (!header_printed) {
711 printf("%3s %8s %15s %15s %15s %15s %s\n",
712 "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT");
713 header_printed = 1;
714 }
715
716 for (thread = 0; thread < nthreads; thread++) {
717 for (cpu = 0; cpu < ncpus; cpu++) {
718 struct perf_counts_values *counts;
719
720 counts = perf_counts(counter->counts, cpu, thread);
721
722 printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n",
723 counter->cpus->map[cpu],
724 thread_map__pid(counter->threads, thread),
725 counts->val,
726 counts->ena,
727 counts->run,
728 tstamp,
729 perf_evsel__name(counter));
730 }
731 }
732 }
733
734 static void process_stat(struct perf_evsel *counter, u64 tstamp)
735 {
736 if (scripting_ops && scripting_ops->process_stat)
737 scripting_ops->process_stat(&stat_config, counter, tstamp);
738 else
739 __process_stat(counter, tstamp);
740 }
741
742 static void process_stat_interval(u64 tstamp)
743 {
744 if (scripting_ops && scripting_ops->process_stat_interval)
745 scripting_ops->process_stat_interval(tstamp);
746 }
747
748 static void setup_scripting(void)
749 {
750 setup_perl_scripting();
751 setup_python_scripting();
752 }
753
754 static int flush_scripting(void)
755 {
756 return scripting_ops ? scripting_ops->flush_script() : 0;
757 }
758
759 static int cleanup_scripting(void)
760 {
761 pr_debug("\nperf script stopped\n");
762
763 return scripting_ops ? scripting_ops->stop_script() : 0;
764 }
765
766 static int process_sample_event(struct perf_tool *tool,
767 union perf_event *event,
768 struct perf_sample *sample,
769 struct perf_evsel *evsel,
770 struct machine *machine)
771 {
772 struct perf_script *scr = container_of(tool, struct perf_script, tool);
773 struct addr_location al;
774
775 if (debug_mode) {
776 if (sample->time < last_timestamp) {
777 pr_err("Samples misordered, previous: %" PRIu64
778 " this: %" PRIu64 "\n", last_timestamp,
779 sample->time);
780 nr_unordered++;
781 }
782 last_timestamp = sample->time;
783 return 0;
784 }
785
786 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
787 pr_err("problem processing %d event, skipping it.\n",
788 event->header.type);
789 return -1;
790 }
791
792 if (al.filtered)
793 goto out_put;
794
795 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
796 goto out_put;
797
798 if (scripting_ops)
799 scripting_ops->process_event(event, sample, evsel, &al);
800 else
801 process_event(scr, event, sample, evsel, &al);
802
803 out_put:
804 addr_location__put(&al);
805 return 0;
806 }
807
808 static int process_attr(struct perf_tool *tool, union perf_event *event,
809 struct perf_evlist **pevlist)
810 {
811 struct perf_script *scr = container_of(tool, struct perf_script, tool);
812 struct perf_evlist *evlist;
813 struct perf_evsel *evsel, *pos;
814 int err;
815
816 err = perf_event__process_attr(tool, event, pevlist);
817 if (err)
818 return err;
819
820 evlist = *pevlist;
821 evsel = perf_evlist__last(*pevlist);
822
823 if (evsel->attr.type >= PERF_TYPE_MAX)
824 return 0;
825
826 evlist__for_each(evlist, pos) {
827 if (pos->attr.type == evsel->attr.type && pos != evsel)
828 return 0;
829 }
830
831 set_print_ip_opts(&evsel->attr);
832
833 if (evsel->attr.sample_type)
834 err = perf_evsel__check_attr(evsel, scr->session);
835
836 return err;
837 }
838
839 static int process_comm_event(struct perf_tool *tool,
840 union perf_event *event,
841 struct perf_sample *sample,
842 struct machine *machine)
843 {
844 struct thread *thread;
845 struct perf_script *script = container_of(tool, struct perf_script, tool);
846 struct perf_session *session = script->session;
847 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
848 int ret = -1;
849
850 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
851 if (thread == NULL) {
852 pr_debug("problem processing COMM event, skipping it.\n");
853 return -1;
854 }
855
856 if (perf_event__process_comm(tool, event, sample, machine) < 0)
857 goto out;
858
859 if (!evsel->attr.sample_id_all) {
860 sample->cpu = 0;
861 sample->time = 0;
862 sample->tid = event->comm.tid;
863 sample->pid = event->comm.pid;
864 }
865 print_sample_start(sample, thread, evsel);
866 perf_event__fprintf(event, stdout);
867 ret = 0;
868 out:
869 thread__put(thread);
870 return ret;
871 }
872
873 static int process_fork_event(struct perf_tool *tool,
874 union perf_event *event,
875 struct perf_sample *sample,
876 struct machine *machine)
877 {
878 struct thread *thread;
879 struct perf_script *script = container_of(tool, struct perf_script, tool);
880 struct perf_session *session = script->session;
881 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
882
883 if (perf_event__process_fork(tool, event, sample, machine) < 0)
884 return -1;
885
886 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
887 if (thread == NULL) {
888 pr_debug("problem processing FORK event, skipping it.\n");
889 return -1;
890 }
891
892 if (!evsel->attr.sample_id_all) {
893 sample->cpu = 0;
894 sample->time = event->fork.time;
895 sample->tid = event->fork.tid;
896 sample->pid = event->fork.pid;
897 }
898 print_sample_start(sample, thread, evsel);
899 perf_event__fprintf(event, stdout);
900 thread__put(thread);
901
902 return 0;
903 }
904 static int process_exit_event(struct perf_tool *tool,
905 union perf_event *event,
906 struct perf_sample *sample,
907 struct machine *machine)
908 {
909 int err = 0;
910 struct thread *thread;
911 struct perf_script *script = container_of(tool, struct perf_script, tool);
912 struct perf_session *session = script->session;
913 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
914
915 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
916 if (thread == NULL) {
917 pr_debug("problem processing EXIT event, skipping it.\n");
918 return -1;
919 }
920
921 if (!evsel->attr.sample_id_all) {
922 sample->cpu = 0;
923 sample->time = 0;
924 sample->tid = event->fork.tid;
925 sample->pid = event->fork.pid;
926 }
927 print_sample_start(sample, thread, evsel);
928 perf_event__fprintf(event, stdout);
929
930 if (perf_event__process_exit(tool, event, sample, machine) < 0)
931 err = -1;
932
933 thread__put(thread);
934 return err;
935 }
936
937 static int process_mmap_event(struct perf_tool *tool,
938 union perf_event *event,
939 struct perf_sample *sample,
940 struct machine *machine)
941 {
942 struct thread *thread;
943 struct perf_script *script = container_of(tool, struct perf_script, tool);
944 struct perf_session *session = script->session;
945 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
946
947 if (perf_event__process_mmap(tool, event, sample, machine) < 0)
948 return -1;
949
950 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid);
951 if (thread == NULL) {
952 pr_debug("problem processing MMAP event, skipping it.\n");
953 return -1;
954 }
955
956 if (!evsel->attr.sample_id_all) {
957 sample->cpu = 0;
958 sample->time = 0;
959 sample->tid = event->mmap.tid;
960 sample->pid = event->mmap.pid;
961 }
962 print_sample_start(sample, thread, evsel);
963 perf_event__fprintf(event, stdout);
964 thread__put(thread);
965 return 0;
966 }
967
968 static int process_mmap2_event(struct perf_tool *tool,
969 union perf_event *event,
970 struct perf_sample *sample,
971 struct machine *machine)
972 {
973 struct thread *thread;
974 struct perf_script *script = container_of(tool, struct perf_script, tool);
975 struct perf_session *session = script->session;
976 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
977
978 if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
979 return -1;
980
981 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid);
982 if (thread == NULL) {
983 pr_debug("problem processing MMAP2 event, skipping it.\n");
984 return -1;
985 }
986
987 if (!evsel->attr.sample_id_all) {
988 sample->cpu = 0;
989 sample->time = 0;
990 sample->tid = event->mmap2.tid;
991 sample->pid = event->mmap2.pid;
992 }
993 print_sample_start(sample, thread, evsel);
994 perf_event__fprintf(event, stdout);
995 thread__put(thread);
996 return 0;
997 }
998
999 static int process_switch_event(struct perf_tool *tool,
1000 union perf_event *event,
1001 struct perf_sample *sample,
1002 struct machine *machine)
1003 {
1004 struct thread *thread;
1005 struct perf_script *script = container_of(tool, struct perf_script, tool);
1006 struct perf_session *session = script->session;
1007 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1008
1009 if (perf_event__process_switch(tool, event, sample, machine) < 0)
1010 return -1;
1011
1012 thread = machine__findnew_thread(machine, sample->pid,
1013 sample->tid);
1014 if (thread == NULL) {
1015 pr_debug("problem processing SWITCH event, skipping it.\n");
1016 return -1;
1017 }
1018
1019 print_sample_start(sample, thread, evsel);
1020 perf_event__fprintf(event, stdout);
1021 thread__put(thread);
1022 return 0;
1023 }
1024
1025 static void sig_handler(int sig __maybe_unused)
1026 {
1027 session_done = 1;
1028 }
1029
1030 static int __cmd_script(struct perf_script *script)
1031 {
1032 int ret;
1033
1034 signal(SIGINT, sig_handler);
1035
1036 /* override event processing functions */
1037 if (script->show_task_events) {
1038 script->tool.comm = process_comm_event;
1039 script->tool.fork = process_fork_event;
1040 script->tool.exit = process_exit_event;
1041 }
1042 if (script->show_mmap_events) {
1043 script->tool.mmap = process_mmap_event;
1044 script->tool.mmap2 = process_mmap2_event;
1045 }
1046 if (script->show_switch_events)
1047 script->tool.context_switch = process_switch_event;
1048
1049 ret = perf_session__process_events(script->session);
1050
1051 if (debug_mode)
1052 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
1053
1054 return ret;
1055 }
1056
1057 struct script_spec {
1058 struct list_head node;
1059 struct scripting_ops *ops;
1060 char spec[0];
1061 };
1062
1063 static LIST_HEAD(script_specs);
1064
1065 static struct script_spec *script_spec__new(const char *spec,
1066 struct scripting_ops *ops)
1067 {
1068 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
1069
1070 if (s != NULL) {
1071 strcpy(s->spec, spec);
1072 s->ops = ops;
1073 }
1074
1075 return s;
1076 }
1077
1078 static void script_spec__add(struct script_spec *s)
1079 {
1080 list_add_tail(&s->node, &script_specs);
1081 }
1082
1083 static struct script_spec *script_spec__find(const char *spec)
1084 {
1085 struct script_spec *s;
1086
1087 list_for_each_entry(s, &script_specs, node)
1088 if (strcasecmp(s->spec, spec) == 0)
1089 return s;
1090 return NULL;
1091 }
1092
1093 static struct script_spec *script_spec__findnew(const char *spec,
1094 struct scripting_ops *ops)
1095 {
1096 struct script_spec *s = script_spec__find(spec);
1097
1098 if (s)
1099 return s;
1100
1101 s = script_spec__new(spec, ops);
1102 if (!s)
1103 return NULL;
1104
1105 script_spec__add(s);
1106
1107 return s;
1108 }
1109
1110 int script_spec_register(const char *spec, struct scripting_ops *ops)
1111 {
1112 struct script_spec *s;
1113
1114 s = script_spec__find(spec);
1115 if (s)
1116 return -1;
1117
1118 s = script_spec__findnew(spec, ops);
1119 if (!s)
1120 return -1;
1121
1122 return 0;
1123 }
1124
1125 static struct scripting_ops *script_spec__lookup(const char *spec)
1126 {
1127 struct script_spec *s = script_spec__find(spec);
1128 if (!s)
1129 return NULL;
1130
1131 return s->ops;
1132 }
1133
1134 static void list_available_languages(void)
1135 {
1136 struct script_spec *s;
1137
1138 fprintf(stderr, "\n");
1139 fprintf(stderr, "Scripting language extensions (used in "
1140 "perf script -s [spec:]script.[spec]):\n\n");
1141
1142 list_for_each_entry(s, &script_specs, node)
1143 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
1144
1145 fprintf(stderr, "\n");
1146 }
1147
1148 static int parse_scriptname(const struct option *opt __maybe_unused,
1149 const char *str, int unset __maybe_unused)
1150 {
1151 char spec[PATH_MAX];
1152 const char *script, *ext;
1153 int len;
1154
1155 if (strcmp(str, "lang") == 0) {
1156 list_available_languages();
1157 exit(0);
1158 }
1159
1160 script = strchr(str, ':');
1161 if (script) {
1162 len = script - str;
1163 if (len >= PATH_MAX) {
1164 fprintf(stderr, "invalid language specifier");
1165 return -1;
1166 }
1167 strncpy(spec, str, len);
1168 spec[len] = '\0';
1169 scripting_ops = script_spec__lookup(spec);
1170 if (!scripting_ops) {
1171 fprintf(stderr, "invalid language specifier");
1172 return -1;
1173 }
1174 script++;
1175 } else {
1176 script = str;
1177 ext = strrchr(script, '.');
1178 if (!ext) {
1179 fprintf(stderr, "invalid script extension");
1180 return -1;
1181 }
1182 scripting_ops = script_spec__lookup(++ext);
1183 if (!scripting_ops) {
1184 fprintf(stderr, "invalid script extension");
1185 return -1;
1186 }
1187 }
1188
1189 script_name = strdup(script);
1190
1191 return 0;
1192 }
1193
1194 static int parse_output_fields(const struct option *opt __maybe_unused,
1195 const char *arg, int unset __maybe_unused)
1196 {
1197 char *tok;
1198 int i, imax = ARRAY_SIZE(all_output_options);
1199 int j;
1200 int rc = 0;
1201 char *str = strdup(arg);
1202 int type = -1;
1203
1204 if (!str)
1205 return -ENOMEM;
1206
1207 /* first word can state for which event type the user is specifying
1208 * the fields. If no type exists, the specified fields apply to all
1209 * event types found in the file minus the invalid fields for a type.
1210 */
1211 tok = strchr(str, ':');
1212 if (tok) {
1213 *tok = '\0';
1214 tok++;
1215 if (!strcmp(str, "hw"))
1216 type = PERF_TYPE_HARDWARE;
1217 else if (!strcmp(str, "sw"))
1218 type = PERF_TYPE_SOFTWARE;
1219 else if (!strcmp(str, "trace"))
1220 type = PERF_TYPE_TRACEPOINT;
1221 else if (!strcmp(str, "raw"))
1222 type = PERF_TYPE_RAW;
1223 else if (!strcmp(str, "break"))
1224 type = PERF_TYPE_BREAKPOINT;
1225 else {
1226 fprintf(stderr, "Invalid event type in field string.\n");
1227 rc = -EINVAL;
1228 goto out;
1229 }
1230
1231 if (output[type].user_set)
1232 pr_warning("Overriding previous field request for %s events.\n",
1233 event_type(type));
1234
1235 output[type].fields = 0;
1236 output[type].user_set = true;
1237 output[type].wildcard_set = false;
1238
1239 } else {
1240 tok = str;
1241 if (strlen(str) == 0) {
1242 fprintf(stderr,
1243 "Cannot set fields to 'none' for all event types.\n");
1244 rc = -EINVAL;
1245 goto out;
1246 }
1247
1248 if (output_set_by_user())
1249 pr_warning("Overriding previous field request for all events.\n");
1250
1251 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1252 output[j].fields = 0;
1253 output[j].user_set = true;
1254 output[j].wildcard_set = true;
1255 }
1256 }
1257
1258 for (tok = strtok(tok, ","); tok; tok = strtok(NULL, ",")) {
1259 for (i = 0; i < imax; ++i) {
1260 if (strcmp(tok, all_output_options[i].str) == 0)
1261 break;
1262 }
1263 if (i == imax && strcmp(tok, "flags") == 0) {
1264 print_flags = true;
1265 continue;
1266 }
1267 if (i == imax) {
1268 fprintf(stderr, "Invalid field requested.\n");
1269 rc = -EINVAL;
1270 goto out;
1271 }
1272
1273 if (type == -1) {
1274 /* add user option to all events types for
1275 * which it is valid
1276 */
1277 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1278 if (output[j].invalid_fields & all_output_options[i].field) {
1279 pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
1280 all_output_options[i].str, event_type(j));
1281 } else
1282 output[j].fields |= all_output_options[i].field;
1283 }
1284 } else {
1285 if (output[type].invalid_fields & all_output_options[i].field) {
1286 fprintf(stderr, "\'%s\' not valid for %s events.\n",
1287 all_output_options[i].str, event_type(type));
1288
1289 rc = -EINVAL;
1290 goto out;
1291 }
1292 output[type].fields |= all_output_options[i].field;
1293 }
1294 }
1295
1296 if (type >= 0) {
1297 if (output[type].fields == 0) {
1298 pr_debug("No fields requested for %s type. "
1299 "Events will not be displayed.\n", event_type(type));
1300 }
1301 }
1302
1303 out:
1304 free(str);
1305 return rc;
1306 }
1307
1308 /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */
1309 static int is_directory(const char *base_path, const struct dirent *dent)
1310 {
1311 char path[PATH_MAX];
1312 struct stat st;
1313
1314 sprintf(path, "%s/%s", base_path, dent->d_name);
1315 if (stat(path, &st))
1316 return 0;
1317
1318 return S_ISDIR(st.st_mode);
1319 }
1320
1321 #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\
1322 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \
1323 lang_next) \
1324 if ((lang_dirent.d_type == DT_DIR || \
1325 (lang_dirent.d_type == DT_UNKNOWN && \
1326 is_directory(scripts_path, &lang_dirent))) && \
1327 (strcmp(lang_dirent.d_name, ".")) && \
1328 (strcmp(lang_dirent.d_name, "..")))
1329
1330 #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\
1331 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \
1332 script_next) \
1333 if (script_dirent.d_type != DT_DIR && \
1334 (script_dirent.d_type != DT_UNKNOWN || \
1335 !is_directory(lang_path, &script_dirent)))
1336
1337
1338 #define RECORD_SUFFIX "-record"
1339 #define REPORT_SUFFIX "-report"
1340
1341 struct script_desc {
1342 struct list_head node;
1343 char *name;
1344 char *half_liner;
1345 char *args;
1346 };
1347
1348 static LIST_HEAD(script_descs);
1349
1350 static struct script_desc *script_desc__new(const char *name)
1351 {
1352 struct script_desc *s = zalloc(sizeof(*s));
1353
1354 if (s != NULL && name)
1355 s->name = strdup(name);
1356
1357 return s;
1358 }
1359
1360 static void script_desc__delete(struct script_desc *s)
1361 {
1362 zfree(&s->name);
1363 zfree(&s->half_liner);
1364 zfree(&s->args);
1365 free(s);
1366 }
1367
1368 static void script_desc__add(struct script_desc *s)
1369 {
1370 list_add_tail(&s->node, &script_descs);
1371 }
1372
1373 static struct script_desc *script_desc__find(const char *name)
1374 {
1375 struct script_desc *s;
1376
1377 list_for_each_entry(s, &script_descs, node)
1378 if (strcasecmp(s->name, name) == 0)
1379 return s;
1380 return NULL;
1381 }
1382
1383 static struct script_desc *script_desc__findnew(const char *name)
1384 {
1385 struct script_desc *s = script_desc__find(name);
1386
1387 if (s)
1388 return s;
1389
1390 s = script_desc__new(name);
1391 if (!s)
1392 goto out_delete_desc;
1393
1394 script_desc__add(s);
1395
1396 return s;
1397
1398 out_delete_desc:
1399 script_desc__delete(s);
1400
1401 return NULL;
1402 }
1403
1404 static const char *ends_with(const char *str, const char *suffix)
1405 {
1406 size_t suffix_len = strlen(suffix);
1407 const char *p = str;
1408
1409 if (strlen(str) > suffix_len) {
1410 p = str + strlen(str) - suffix_len;
1411 if (!strncmp(p, suffix, suffix_len))
1412 return p;
1413 }
1414
1415 return NULL;
1416 }
1417
1418 static int read_script_info(struct script_desc *desc, const char *filename)
1419 {
1420 char line[BUFSIZ], *p;
1421 FILE *fp;
1422
1423 fp = fopen(filename, "r");
1424 if (!fp)
1425 return -1;
1426
1427 while (fgets(line, sizeof(line), fp)) {
1428 p = ltrim(line);
1429 if (strlen(p) == 0)
1430 continue;
1431 if (*p != '#')
1432 continue;
1433 p++;
1434 if (strlen(p) && *p == '!')
1435 continue;
1436
1437 p = ltrim(p);
1438 if (strlen(p) && p[strlen(p) - 1] == '\n')
1439 p[strlen(p) - 1] = '\0';
1440
1441 if (!strncmp(p, "description:", strlen("description:"))) {
1442 p += strlen("description:");
1443 desc->half_liner = strdup(ltrim(p));
1444 continue;
1445 }
1446
1447 if (!strncmp(p, "args:", strlen("args:"))) {
1448 p += strlen("args:");
1449 desc->args = strdup(ltrim(p));
1450 continue;
1451 }
1452 }
1453
1454 fclose(fp);
1455
1456 return 0;
1457 }
1458
1459 static char *get_script_root(struct dirent *script_dirent, const char *suffix)
1460 {
1461 char *script_root, *str;
1462
1463 script_root = strdup(script_dirent->d_name);
1464 if (!script_root)
1465 return NULL;
1466
1467 str = (char *)ends_with(script_root, suffix);
1468 if (!str) {
1469 free(script_root);
1470 return NULL;
1471 }
1472
1473 *str = '\0';
1474 return script_root;
1475 }
1476
1477 static int list_available_scripts(const struct option *opt __maybe_unused,
1478 const char *s __maybe_unused,
1479 int unset __maybe_unused)
1480 {
1481 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1482 char scripts_path[MAXPATHLEN];
1483 DIR *scripts_dir, *lang_dir;
1484 char script_path[MAXPATHLEN];
1485 char lang_path[MAXPATHLEN];
1486 struct script_desc *desc;
1487 char first_half[BUFSIZ];
1488 char *script_root;
1489
1490 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1491
1492 scripts_dir = opendir(scripts_path);
1493 if (!scripts_dir)
1494 return -1;
1495
1496 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1497 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1498 lang_dirent.d_name);
1499 lang_dir = opendir(lang_path);
1500 if (!lang_dir)
1501 continue;
1502
1503 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1504 script_root = get_script_root(&script_dirent, REPORT_SUFFIX);
1505 if (script_root) {
1506 desc = script_desc__findnew(script_root);
1507 snprintf(script_path, MAXPATHLEN, "%s/%s",
1508 lang_path, script_dirent.d_name);
1509 read_script_info(desc, script_path);
1510 free(script_root);
1511 }
1512 }
1513 }
1514
1515 fprintf(stdout, "List of available trace scripts:\n");
1516 list_for_each_entry(desc, &script_descs, node) {
1517 sprintf(first_half, "%s %s", desc->name,
1518 desc->args ? desc->args : "");
1519 fprintf(stdout, " %-36s %s\n", first_half,
1520 desc->half_liner ? desc->half_liner : "");
1521 }
1522
1523 exit(0);
1524 }
1525
1526 /*
1527 * Some scripts specify the required events in their "xxx-record" file,
1528 * this function will check if the events in perf.data match those
1529 * mentioned in the "xxx-record".
1530 *
1531 * Fixme: All existing "xxx-record" are all in good formats "-e event ",
1532 * which is covered well now. And new parsing code should be added to
1533 * cover the future complexing formats like event groups etc.
1534 */
1535 static int check_ev_match(char *dir_name, char *scriptname,
1536 struct perf_session *session)
1537 {
1538 char filename[MAXPATHLEN], evname[128];
1539 char line[BUFSIZ], *p;
1540 struct perf_evsel *pos;
1541 int match, len;
1542 FILE *fp;
1543
1544 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname);
1545
1546 fp = fopen(filename, "r");
1547 if (!fp)
1548 return -1;
1549
1550 while (fgets(line, sizeof(line), fp)) {
1551 p = ltrim(line);
1552 if (*p == '#')
1553 continue;
1554
1555 while (strlen(p)) {
1556 p = strstr(p, "-e");
1557 if (!p)
1558 break;
1559
1560 p += 2;
1561 p = ltrim(p);
1562 len = strcspn(p, " \t");
1563 if (!len)
1564 break;
1565
1566 snprintf(evname, len + 1, "%s", p);
1567
1568 match = 0;
1569 evlist__for_each(session->evlist, pos) {
1570 if (!strcmp(perf_evsel__name(pos), evname)) {
1571 match = 1;
1572 break;
1573 }
1574 }
1575
1576 if (!match) {
1577 fclose(fp);
1578 return -1;
1579 }
1580 }
1581 }
1582
1583 fclose(fp);
1584 return 0;
1585 }
1586
1587 /*
1588 * Return -1 if none is found, otherwise the actual scripts number.
1589 *
1590 * Currently the only user of this function is the script browser, which
1591 * will list all statically runnable scripts, select one, execute it and
1592 * show the output in a perf browser.
1593 */
1594 int find_scripts(char **scripts_array, char **scripts_path_array)
1595 {
1596 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1597 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
1598 DIR *scripts_dir, *lang_dir;
1599 struct perf_session *session;
1600 struct perf_data_file file = {
1601 .path = input_name,
1602 .mode = PERF_DATA_MODE_READ,
1603 };
1604 char *temp;
1605 int i = 0;
1606
1607 session = perf_session__new(&file, false, NULL);
1608 if (!session)
1609 return -1;
1610
1611 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1612
1613 scripts_dir = opendir(scripts_path);
1614 if (!scripts_dir) {
1615 perf_session__delete(session);
1616 return -1;
1617 }
1618
1619 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1620 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path,
1621 lang_dirent.d_name);
1622 #ifdef NO_LIBPERL
1623 if (strstr(lang_path, "perl"))
1624 continue;
1625 #endif
1626 #ifdef NO_LIBPYTHON
1627 if (strstr(lang_path, "python"))
1628 continue;
1629 #endif
1630
1631 lang_dir = opendir(lang_path);
1632 if (!lang_dir)
1633 continue;
1634
1635 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1636 /* Skip those real time scripts: xxxtop.p[yl] */
1637 if (strstr(script_dirent.d_name, "top."))
1638 continue;
1639 sprintf(scripts_path_array[i], "%s/%s", lang_path,
1640 script_dirent.d_name);
1641 temp = strchr(script_dirent.d_name, '.');
1642 snprintf(scripts_array[i],
1643 (temp - script_dirent.d_name) + 1,
1644 "%s", script_dirent.d_name);
1645
1646 if (check_ev_match(lang_path,
1647 scripts_array[i], session))
1648 continue;
1649
1650 i++;
1651 }
1652 closedir(lang_dir);
1653 }
1654
1655 closedir(scripts_dir);
1656 perf_session__delete(session);
1657 return i;
1658 }
1659
1660 static char *get_script_path(const char *script_root, const char *suffix)
1661 {
1662 struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
1663 char scripts_path[MAXPATHLEN];
1664 char script_path[MAXPATHLEN];
1665 DIR *scripts_dir, *lang_dir;
1666 char lang_path[MAXPATHLEN];
1667 char *__script_root;
1668
1669 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1670
1671 scripts_dir = opendir(scripts_path);
1672 if (!scripts_dir)
1673 return NULL;
1674
1675 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) {
1676 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1677 lang_dirent.d_name);
1678 lang_dir = opendir(lang_path);
1679 if (!lang_dir)
1680 continue;
1681
1682 for_each_script(lang_path, lang_dir, script_dirent, script_next) {
1683 __script_root = get_script_root(&script_dirent, suffix);
1684 if (__script_root && !strcmp(script_root, __script_root)) {
1685 free(__script_root);
1686 closedir(lang_dir);
1687 closedir(scripts_dir);
1688 snprintf(script_path, MAXPATHLEN, "%s/%s",
1689 lang_path, script_dirent.d_name);
1690 return strdup(script_path);
1691 }
1692 free(__script_root);
1693 }
1694 closedir(lang_dir);
1695 }
1696 closedir(scripts_dir);
1697
1698 return NULL;
1699 }
1700
1701 static bool is_top_script(const char *script_path)
1702 {
1703 return ends_with(script_path, "top") == NULL ? false : true;
1704 }
1705
1706 static int has_required_arg(char *script_path)
1707 {
1708 struct script_desc *desc;
1709 int n_args = 0;
1710 char *p;
1711
1712 desc = script_desc__new(NULL);
1713
1714 if (read_script_info(desc, script_path))
1715 goto out;
1716
1717 if (!desc->args)
1718 goto out;
1719
1720 for (p = desc->args; *p; p++)
1721 if (*p == '<')
1722 n_args++;
1723 out:
1724 script_desc__delete(desc);
1725
1726 return n_args;
1727 }
1728
1729 static int have_cmd(int argc, const char **argv)
1730 {
1731 char **__argv = malloc(sizeof(const char *) * argc);
1732
1733 if (!__argv) {
1734 pr_err("malloc failed\n");
1735 return -1;
1736 }
1737
1738 memcpy(__argv, argv, sizeof(const char *) * argc);
1739 argc = parse_options(argc, (const char **)__argv, record_options,
1740 NULL, PARSE_OPT_STOP_AT_NON_OPTION);
1741 free(__argv);
1742
1743 system_wide = (argc == 0);
1744
1745 return 0;
1746 }
1747
1748 static void script__setup_sample_type(struct perf_script *script)
1749 {
1750 struct perf_session *session = script->session;
1751 u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
1752
1753 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
1754 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
1755 (sample_type & PERF_SAMPLE_STACK_USER))
1756 callchain_param.record_mode = CALLCHAIN_DWARF;
1757 else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
1758 callchain_param.record_mode = CALLCHAIN_LBR;
1759 else
1760 callchain_param.record_mode = CALLCHAIN_FP;
1761 }
1762 }
1763
1764 static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
1765 union perf_event *event,
1766 struct perf_session *session)
1767 {
1768 struct stat_round_event *round = &event->stat_round;
1769 struct perf_evsel *counter;
1770
1771 evlist__for_each(session->evlist, counter) {
1772 perf_stat_process_counter(&stat_config, counter);
1773 process_stat(counter, round->time);
1774 }
1775
1776 process_stat_interval(round->time);
1777 return 0;
1778 }
1779
1780 static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
1781 union perf_event *event,
1782 struct perf_session *session __maybe_unused)
1783 {
1784 perf_event__read_stat_config(&stat_config, &event->stat_config);
1785 return 0;
1786 }
1787
1788 static int set_maps(struct perf_script *script)
1789 {
1790 struct perf_evlist *evlist = script->session->evlist;
1791
1792 if (!script->cpus || !script->threads)
1793 return 0;
1794
1795 if (WARN_ONCE(script->allocated, "stats double allocation\n"))
1796 return -EINVAL;
1797
1798 perf_evlist__set_maps(evlist, script->cpus, script->threads);
1799
1800 if (perf_evlist__alloc_stats(evlist, true))
1801 return -ENOMEM;
1802
1803 script->allocated = true;
1804 return 0;
1805 }
1806
1807 static
1808 int process_thread_map_event(struct perf_tool *tool,
1809 union perf_event *event,
1810 struct perf_session *session __maybe_unused)
1811 {
1812 struct perf_script *script = container_of(tool, struct perf_script, tool);
1813
1814 if (script->threads) {
1815 pr_warning("Extra thread map event, ignoring.\n");
1816 return 0;
1817 }
1818
1819 script->threads = thread_map__new_event(&event->thread_map);
1820 if (!script->threads)
1821 return -ENOMEM;
1822
1823 return set_maps(script);
1824 }
1825
1826 static
1827 int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
1828 union perf_event *event,
1829 struct perf_session *session __maybe_unused)
1830 {
1831 struct perf_script *script = container_of(tool, struct perf_script, tool);
1832
1833 if (script->cpus) {
1834 pr_warning("Extra cpu map event, ignoring.\n");
1835 return 0;
1836 }
1837
1838 script->cpus = cpu_map__new_data(&event->cpu_map.data);
1839 if (!script->cpus)
1840 return -ENOMEM;
1841
1842 return set_maps(script);
1843 }
1844
1845 int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
1846 {
1847 bool show_full_info = false;
1848 bool header = false;
1849 bool header_only = false;
1850 bool script_started = false;
1851 char *rec_script_path = NULL;
1852 char *rep_script_path = NULL;
1853 struct perf_session *session;
1854 struct itrace_synth_opts itrace_synth_opts = { .set = false, };
1855 char *script_path = NULL;
1856 const char **__argv;
1857 int i, j, err = 0;
1858 struct perf_script script = {
1859 .tool = {
1860 .sample = process_sample_event,
1861 .mmap = perf_event__process_mmap,
1862 .mmap2 = perf_event__process_mmap2,
1863 .comm = perf_event__process_comm,
1864 .exit = perf_event__process_exit,
1865 .fork = perf_event__process_fork,
1866 .attr = process_attr,
1867 .tracing_data = perf_event__process_tracing_data,
1868 .build_id = perf_event__process_build_id,
1869 .id_index = perf_event__process_id_index,
1870 .auxtrace_info = perf_event__process_auxtrace_info,
1871 .auxtrace = perf_event__process_auxtrace,
1872 .auxtrace_error = perf_event__process_auxtrace_error,
1873 .stat = perf_event__process_stat_event,
1874 .stat_round = process_stat_round_event,
1875 .stat_config = process_stat_config_event,
1876 .thread_map = process_thread_map_event,
1877 .cpu_map = process_cpu_map_event,
1878 .ordered_events = true,
1879 .ordering_requires_timestamps = true,
1880 },
1881 };
1882 struct perf_data_file file = {
1883 .mode = PERF_DATA_MODE_READ,
1884 };
1885 const struct option options[] = {
1886 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1887 "dump raw trace in ASCII"),
1888 OPT_INCR('v', "verbose", &verbose,
1889 "be more verbose (show symbol address, etc)"),
1890 OPT_BOOLEAN('L', "Latency", &latency_format,
1891 "show latency attributes (irqs/preemption disabled, etc)"),
1892 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
1893 list_available_scripts),
1894 OPT_CALLBACK('s', "script", NULL, "name",
1895 "script file name (lang:script name, script name, or *)",
1896 parse_scriptname),
1897 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
1898 "generate perf-script.xx script in specified language"),
1899 OPT_STRING('i', "input", &input_name, "file", "input file name"),
1900 OPT_BOOLEAN('d', "debug-mode", &debug_mode,
1901 "do various checks like samples ordering and lost events"),
1902 OPT_BOOLEAN(0, "header", &header, "Show data header."),
1903 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."),
1904 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1905 "file", "vmlinux pathname"),
1906 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1907 "file", "kallsyms pathname"),
1908 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
1909 "When printing symbols do not display call chain"),
1910 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
1911 "Look for files with symbols relative to this directory"),
1912 OPT_CALLBACK('F', "fields", NULL, "str",
1913 "comma separated output fields prepend with 'type:'. "
1914 "Valid types: hw,sw,trace,raw. "
1915 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
1916 "addr,symoff,period,iregs,brstack,brstacksym,flags", parse_output_fields),
1917 OPT_BOOLEAN('a', "all-cpus", &system_wide,
1918 "system-wide collection from all CPUs"),
1919 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1920 "only consider these symbols"),
1921 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
1922 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1923 "only display events for these comms"),
1924 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1925 "only consider symbols in these pids"),
1926 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1927 "only consider symbols in these tids"),
1928 OPT_BOOLEAN('I', "show-info", &show_full_info,
1929 "display extended information from perf.data file"),
1930 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
1931 "Show the path of [kernel.kallsyms]"),
1932 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events,
1933 "Show the fork/comm/exit events"),
1934 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
1935 "Show the mmap events"),
1936 OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events,
1937 "Show context switch events (if recorded)"),
1938 OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
1939 OPT_BOOLEAN(0, "ns", &nanosecs,
1940 "Use 9 decimal places when displaying time"),
1941 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1942 "Instruction Tracing options",
1943 itrace_parse_synth_opts),
1944 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1945 "Show full source file name path for source lines"),
1946 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1947 "Enable symbol demangling"),
1948 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1949 "Enable kernel symbol demangling"),
1950
1951 OPT_END()
1952 };
1953 const char * const script_subcommands[] = { "record", "report", NULL };
1954 const char *script_usage[] = {
1955 "perf script [<options>]",
1956 "perf script [<options>] record <script> [<record-options>] <command>",
1957 "perf script [<options>] report <script> [script-args]",
1958 "perf script [<options>] <script> [<record-options>] <command>",
1959 "perf script [<options>] <top-script> [script-args]",
1960 NULL
1961 };
1962
1963 setup_scripting();
1964
1965 argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
1966 PARSE_OPT_STOP_AT_NON_OPTION);
1967
1968 file.path = input_name;
1969
1970 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
1971 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
1972 if (!rec_script_path)
1973 return cmd_record(argc, argv, NULL);
1974 }
1975
1976 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
1977 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
1978 if (!rep_script_path) {
1979 fprintf(stderr,
1980 "Please specify a valid report script"
1981 "(see 'perf script -l' for listing)\n");
1982 return -1;
1983 }
1984 }
1985
1986 if (itrace_synth_opts.callchain &&
1987 itrace_synth_opts.callchain_sz > scripting_max_stack)
1988 scripting_max_stack = itrace_synth_opts.callchain_sz;
1989
1990 /* make sure PERF_EXEC_PATH is set for scripts */
1991 set_argv_exec_path(get_argv_exec_path());
1992
1993 if (argc && !script_name && !rec_script_path && !rep_script_path) {
1994 int live_pipe[2];
1995 int rep_args;
1996 pid_t pid;
1997
1998 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
1999 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
2000
2001 if (!rec_script_path && !rep_script_path) {
2002 usage_with_options_msg(script_usage, options,
2003 "Couldn't find script `%s'\n\n See perf"
2004 " script -l for available scripts.\n", argv[0]);
2005 }
2006
2007 if (is_top_script(argv[0])) {
2008 rep_args = argc - 1;
2009 } else {
2010 int rec_args;
2011
2012 rep_args = has_required_arg(rep_script_path);
2013 rec_args = (argc - 1) - rep_args;
2014 if (rec_args < 0) {
2015 usage_with_options_msg(script_usage, options,
2016 "`%s' script requires options."
2017 "\n\n See perf script -l for available "
2018 "scripts and options.\n", argv[0]);
2019 }
2020 }
2021
2022 if (pipe(live_pipe) < 0) {
2023 perror("failed to create pipe");
2024 return -1;
2025 }
2026
2027 pid = fork();
2028 if (pid < 0) {
2029 perror("failed to fork");
2030 return -1;
2031 }
2032
2033 if (!pid) {
2034 j = 0;
2035
2036 dup2(live_pipe[1], 1);
2037 close(live_pipe[0]);
2038
2039 if (is_top_script(argv[0])) {
2040 system_wide = true;
2041 } else if (!system_wide) {
2042 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
2043 err = -1;
2044 goto out;
2045 }
2046 }
2047
2048 __argv = malloc((argc + 6) * sizeof(const char *));
2049 if (!__argv) {
2050 pr_err("malloc failed\n");
2051 err = -ENOMEM;
2052 goto out;
2053 }
2054
2055 __argv[j++] = "/bin/sh";
2056 __argv[j++] = rec_script_path;
2057 if (system_wide)
2058 __argv[j++] = "-a";
2059 __argv[j++] = "-q";
2060 __argv[j++] = "-o";
2061 __argv[j++] = "-";
2062 for (i = rep_args + 1; i < argc; i++)
2063 __argv[j++] = argv[i];
2064 __argv[j++] = NULL;
2065
2066 execvp("/bin/sh", (char **)__argv);
2067 free(__argv);
2068 exit(-1);
2069 }
2070
2071 dup2(live_pipe[0], 0);
2072 close(live_pipe[1]);
2073
2074 __argv = malloc((argc + 4) * sizeof(const char *));
2075 if (!__argv) {
2076 pr_err("malloc failed\n");
2077 err = -ENOMEM;
2078 goto out;
2079 }
2080
2081 j = 0;
2082 __argv[j++] = "/bin/sh";
2083 __argv[j++] = rep_script_path;
2084 for (i = 1; i < rep_args + 1; i++)
2085 __argv[j++] = argv[i];
2086 __argv[j++] = "-i";
2087 __argv[j++] = "-";
2088 __argv[j++] = NULL;
2089
2090 execvp("/bin/sh", (char **)__argv);
2091 free(__argv);
2092 exit(-1);
2093 }
2094
2095 if (rec_script_path)
2096 script_path = rec_script_path;
2097 if (rep_script_path)
2098 script_path = rep_script_path;
2099
2100 if (script_path) {
2101 j = 0;
2102
2103 if (!rec_script_path)
2104 system_wide = false;
2105 else if (!system_wide) {
2106 if (have_cmd(argc - 1, &argv[1]) != 0) {
2107 err = -1;
2108 goto out;
2109 }
2110 }
2111
2112 __argv = malloc((argc + 2) * sizeof(const char *));
2113 if (!__argv) {
2114 pr_err("malloc failed\n");
2115 err = -ENOMEM;
2116 goto out;
2117 }
2118
2119 __argv[j++] = "/bin/sh";
2120 __argv[j++] = script_path;
2121 if (system_wide)
2122 __argv[j++] = "-a";
2123 for (i = 2; i < argc; i++)
2124 __argv[j++] = argv[i];
2125 __argv[j++] = NULL;
2126
2127 execvp("/bin/sh", (char **)__argv);
2128 free(__argv);
2129 exit(-1);
2130 }
2131
2132 if (!script_name)
2133 setup_pager();
2134
2135 session = perf_session__new(&file, false, &script.tool);
2136 if (session == NULL)
2137 return -1;
2138
2139 if (header || header_only) {
2140 perf_session__fprintf_info(session, stdout, show_full_info);
2141 if (header_only)
2142 goto out_delete;
2143 }
2144
2145 if (symbol__init(&session->header.env) < 0)
2146 goto out_delete;
2147
2148 script.session = session;
2149 script__setup_sample_type(&script);
2150
2151 session->itrace_synth_opts = &itrace_synth_opts;
2152
2153 if (cpu_list) {
2154 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
2155 if (err < 0)
2156 goto out_delete;
2157 }
2158
2159 if (!no_callchain)
2160 symbol_conf.use_callchain = true;
2161 else
2162 symbol_conf.use_callchain = false;
2163
2164 if (session->tevent.pevent &&
2165 pevent_set_function_resolver(session->tevent.pevent,
2166 machine__resolve_kernel_addr,
2167 &session->machines.host) < 0) {
2168 pr_err("%s: failed to set libtraceevent function resolver\n", __func__);
2169 return -1;
2170 }
2171
2172 if (generate_script_lang) {
2173 struct stat perf_stat;
2174 int input;
2175
2176 if (output_set_by_user()) {
2177 fprintf(stderr,
2178 "custom fields not supported for generated scripts");
2179 err = -EINVAL;
2180 goto out_delete;
2181 }
2182
2183 input = open(file.path, O_RDONLY); /* input_name */
2184 if (input < 0) {
2185 err = -errno;
2186 perror("failed to open file");
2187 goto out_delete;
2188 }
2189
2190 err = fstat(input, &perf_stat);
2191 if (err < 0) {
2192 perror("failed to stat file");
2193 goto out_delete;
2194 }
2195
2196 if (!perf_stat.st_size) {
2197 fprintf(stderr, "zero-sized file, nothing to do!\n");
2198 goto out_delete;
2199 }
2200
2201 scripting_ops = script_spec__lookup(generate_script_lang);
2202 if (!scripting_ops) {
2203 fprintf(stderr, "invalid language specifier");
2204 err = -ENOENT;
2205 goto out_delete;
2206 }
2207
2208 err = scripting_ops->generate_script(session->tevent.pevent,
2209 "perf-script");
2210 goto out_delete;
2211 }
2212
2213 if (script_name) {
2214 err = scripting_ops->start_script(script_name, argc, argv);
2215 if (err)
2216 goto out_delete;
2217 pr_debug("perf script started with script %s\n\n", script_name);
2218 script_started = true;
2219 }
2220
2221
2222 err = perf_session__check_output_opt(session);
2223 if (err < 0)
2224 goto out_delete;
2225
2226 err = __cmd_script(&script);
2227
2228 flush_scripting();
2229
2230 out_delete:
2231 perf_evlist__free_stats(session->evlist);
2232 perf_session__delete(session);
2233
2234 if (script_started)
2235 cleanup_scripting();
2236 out:
2237 return err;
2238 }
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