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Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.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 "util/thread-stack.h"
25 #include <linux/bitmap.h>
26 #include <linux/stringify.h>
27 #include "asm/bug.h"
28 #include "util/mem-events.h"
29
30 static char const *script_name;
31 static char const *generate_script_lang;
32 static bool debug_mode;
33 static u64 last_timestamp;
34 static u64 nr_unordered;
35 static bool no_callchain;
36 static bool latency_format;
37 static bool system_wide;
38 static bool print_flags;
39 static bool nanosecs;
40 static const char *cpu_list;
41 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
42 static struct perf_stat_config stat_config;
43
44 unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
45
46 enum perf_output_field {
47 PERF_OUTPUT_COMM = 1U << 0,
48 PERF_OUTPUT_TID = 1U << 1,
49 PERF_OUTPUT_PID = 1U << 2,
50 PERF_OUTPUT_TIME = 1U << 3,
51 PERF_OUTPUT_CPU = 1U << 4,
52 PERF_OUTPUT_EVNAME = 1U << 5,
53 PERF_OUTPUT_TRACE = 1U << 6,
54 PERF_OUTPUT_IP = 1U << 7,
55 PERF_OUTPUT_SYM = 1U << 8,
56 PERF_OUTPUT_DSO = 1U << 9,
57 PERF_OUTPUT_ADDR = 1U << 10,
58 PERF_OUTPUT_SYMOFFSET = 1U << 11,
59 PERF_OUTPUT_SRCLINE = 1U << 12,
60 PERF_OUTPUT_PERIOD = 1U << 13,
61 PERF_OUTPUT_IREGS = 1U << 14,
62 PERF_OUTPUT_BRSTACK = 1U << 15,
63 PERF_OUTPUT_BRSTACKSYM = 1U << 16,
64 PERF_OUTPUT_DATA_SRC = 1U << 17,
65 PERF_OUTPUT_WEIGHT = 1U << 18,
66 PERF_OUTPUT_BPF_OUTPUT = 1U << 19,
67 PERF_OUTPUT_CALLINDENT = 1U << 20,
68 };
69
70 struct output_option {
71 const char *str;
72 enum perf_output_field field;
73 } all_output_options[] = {
74 {.str = "comm", .field = PERF_OUTPUT_COMM},
75 {.str = "tid", .field = PERF_OUTPUT_TID},
76 {.str = "pid", .field = PERF_OUTPUT_PID},
77 {.str = "time", .field = PERF_OUTPUT_TIME},
78 {.str = "cpu", .field = PERF_OUTPUT_CPU},
79 {.str = "event", .field = PERF_OUTPUT_EVNAME},
80 {.str = "trace", .field = PERF_OUTPUT_TRACE},
81 {.str = "ip", .field = PERF_OUTPUT_IP},
82 {.str = "sym", .field = PERF_OUTPUT_SYM},
83 {.str = "dso", .field = PERF_OUTPUT_DSO},
84 {.str = "addr", .field = PERF_OUTPUT_ADDR},
85 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET},
86 {.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
87 {.str = "period", .field = PERF_OUTPUT_PERIOD},
88 {.str = "iregs", .field = PERF_OUTPUT_IREGS},
89 {.str = "brstack", .field = PERF_OUTPUT_BRSTACK},
90 {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM},
91 {.str = "data_src", .field = PERF_OUTPUT_DATA_SRC},
92 {.str = "weight", .field = PERF_OUTPUT_WEIGHT},
93 {.str = "bpf-output", .field = PERF_OUTPUT_BPF_OUTPUT},
94 {.str = "callindent", .field = PERF_OUTPUT_CALLINDENT},
95 };
96
97 /* default set to maintain compatibility with current format */
98 static struct {
99 bool user_set;
100 bool wildcard_set;
101 unsigned int print_ip_opts;
102 u64 fields;
103 u64 invalid_fields;
104 } output[PERF_TYPE_MAX] = {
105
106 [PERF_TYPE_HARDWARE] = {
107 .user_set = false,
108
109 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
110 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
111 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
112 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
113 PERF_OUTPUT_PERIOD,
114
115 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
116 },
117
118 [PERF_TYPE_SOFTWARE] = {
119 .user_set = false,
120
121 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
122 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
123 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
124 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
125 PERF_OUTPUT_PERIOD | PERF_OUTPUT_BPF_OUTPUT,
126
127 .invalid_fields = PERF_OUTPUT_TRACE,
128 },
129
130 [PERF_TYPE_TRACEPOINT] = {
131 .user_set = false,
132
133 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
134 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
135 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE
136 },
137
138 [PERF_TYPE_RAW] = {
139 .user_set = false,
140
141 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
142 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
143 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
144 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
145 PERF_OUTPUT_PERIOD | PERF_OUTPUT_ADDR |
146 PERF_OUTPUT_DATA_SRC | PERF_OUTPUT_WEIGHT,
147
148 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
149 },
150
151 [PERF_TYPE_BREAKPOINT] = {
152 .user_set = false,
153
154 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
155 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
156 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
157 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO |
158 PERF_OUTPUT_PERIOD,
159
160 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT,
161 },
162 };
163
164 static bool output_set_by_user(void)
165 {
166 int j;
167 for (j = 0; j < PERF_TYPE_MAX; ++j) {
168 if (output[j].user_set)
169 return true;
170 }
171 return false;
172 }
173
174 static const char *output_field2str(enum perf_output_field field)
175 {
176 int i, imax = ARRAY_SIZE(all_output_options);
177 const char *str = "";
178
179 for (i = 0; i < imax; ++i) {
180 if (all_output_options[i].field == field) {
181 str = all_output_options[i].str;
182 break;
183 }
184 }
185 return str;
186 }
187
188 #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x)
189
190 static int perf_evsel__do_check_stype(struct perf_evsel *evsel,
191 u64 sample_type, const char *sample_msg,
192 enum perf_output_field field,
193 bool allow_user_set)
194 {
195 struct perf_event_attr *attr = &evsel->attr;
196 int type = attr->type;
197 const char *evname;
198
199 if (attr->sample_type & sample_type)
200 return 0;
201
202 if (output[type].user_set) {
203 if (allow_user_set)
204 return 0;
205 evname = perf_evsel__name(evsel);
206 pr_err("Samples for '%s' event do not have %s attribute set. "
207 "Cannot print '%s' field.\n",
208 evname, sample_msg, output_field2str(field));
209 return -1;
210 }
211
212 /* user did not ask for it explicitly so remove from the default list */
213 output[type].fields &= ~field;
214 evname = perf_evsel__name(evsel);
215 pr_debug("Samples for '%s' event do not have %s attribute set. "
216 "Skipping '%s' field.\n",
217 evname, sample_msg, output_field2str(field));
218
219 return 0;
220 }
221
222 static int perf_evsel__check_stype(struct perf_evsel *evsel,
223 u64 sample_type, const char *sample_msg,
224 enum perf_output_field field)
225 {
226 return perf_evsel__do_check_stype(evsel, sample_type, sample_msg, field,
227 false);
228 }
229
230 static int perf_evsel__check_attr(struct perf_evsel *evsel,
231 struct perf_session *session)
232 {
233 struct perf_event_attr *attr = &evsel->attr;
234 bool allow_user_set;
235
236 if (perf_header__has_feat(&session->header, HEADER_STAT))
237 return 0;
238
239 allow_user_set = perf_header__has_feat(&session->header,
240 HEADER_AUXTRACE);
241
242 if (PRINT_FIELD(TRACE) &&
243 !perf_session__has_traces(session, "record -R"))
244 return -EINVAL;
245
246 if (PRINT_FIELD(IP)) {
247 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP",
248 PERF_OUTPUT_IP))
249 return -EINVAL;
250 }
251
252 if (PRINT_FIELD(ADDR) &&
253 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR",
254 PERF_OUTPUT_ADDR, allow_user_set))
255 return -EINVAL;
256
257 if (PRINT_FIELD(DATA_SRC) &&
258 perf_evsel__check_stype(evsel, PERF_SAMPLE_DATA_SRC, "DATA_SRC",
259 PERF_OUTPUT_DATA_SRC))
260 return -EINVAL;
261
262 if (PRINT_FIELD(WEIGHT) &&
263 perf_evsel__check_stype(evsel, PERF_SAMPLE_WEIGHT, "WEIGHT",
264 PERF_OUTPUT_WEIGHT))
265 return -EINVAL;
266
267 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
268 pr_err("Display of symbols requested but neither sample IP nor "
269 "sample address\nis selected. Hence, no addresses to convert "
270 "to symbols.\n");
271 return -EINVAL;
272 }
273 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) {
274 pr_err("Display of offsets requested but symbol is not"
275 "selected.\n");
276 return -EINVAL;
277 }
278 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
279 pr_err("Display of DSO requested but neither sample IP nor "
280 "sample address\nis selected. Hence, no addresses to convert "
281 "to DSO.\n");
282 return -EINVAL;
283 }
284 if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) {
285 pr_err("Display of source line number requested but sample IP is not\n"
286 "selected. Hence, no address to lookup the source line number.\n");
287 return -EINVAL;
288 }
289
290 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
291 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID",
292 PERF_OUTPUT_TID|PERF_OUTPUT_PID))
293 return -EINVAL;
294
295 if (PRINT_FIELD(TIME) &&
296 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME",
297 PERF_OUTPUT_TIME))
298 return -EINVAL;
299
300 if (PRINT_FIELD(CPU) &&
301 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_CPU, "CPU",
302 PERF_OUTPUT_CPU, allow_user_set))
303 return -EINVAL;
304
305 if (PRINT_FIELD(PERIOD) &&
306 perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD",
307 PERF_OUTPUT_PERIOD))
308 return -EINVAL;
309
310 if (PRINT_FIELD(IREGS) &&
311 perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_INTR, "IREGS",
312 PERF_OUTPUT_IREGS))
313 return -EINVAL;
314
315 return 0;
316 }
317
318 static void set_print_ip_opts(struct perf_event_attr *attr)
319 {
320 unsigned int type = attr->type;
321
322 output[type].print_ip_opts = 0;
323 if (PRINT_FIELD(IP))
324 output[type].print_ip_opts |= EVSEL__PRINT_IP;
325
326 if (PRINT_FIELD(SYM))
327 output[type].print_ip_opts |= EVSEL__PRINT_SYM;
328
329 if (PRINT_FIELD(DSO))
330 output[type].print_ip_opts |= EVSEL__PRINT_DSO;
331
332 if (PRINT_FIELD(SYMOFFSET))
333 output[type].print_ip_opts |= EVSEL__PRINT_SYMOFFSET;
334
335 if (PRINT_FIELD(SRCLINE))
336 output[type].print_ip_opts |= EVSEL__PRINT_SRCLINE;
337 }
338
339 /*
340 * verify all user requested events exist and the samples
341 * have the expected data
342 */
343 static int perf_session__check_output_opt(struct perf_session *session)
344 {
345 unsigned int j;
346 struct perf_evsel *evsel;
347
348 for (j = 0; j < PERF_TYPE_MAX; ++j) {
349 evsel = perf_session__find_first_evtype(session, j);
350
351 /*
352 * even if fields is set to 0 (ie., show nothing) event must
353 * exist if user explicitly includes it on the command line
354 */
355 if (!evsel && output[j].user_set && !output[j].wildcard_set) {
356 pr_err("%s events do not exist. "
357 "Remove corresponding -f option to proceed.\n",
358 event_type(j));
359 return -1;
360 }
361
362 if (evsel && output[j].fields &&
363 perf_evsel__check_attr(evsel, session))
364 return -1;
365
366 if (evsel == NULL)
367 continue;
368
369 set_print_ip_opts(&evsel->attr);
370 }
371
372 if (!no_callchain) {
373 bool use_callchain = false;
374
375 evlist__for_each_entry(session->evlist, evsel) {
376 if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) {
377 use_callchain = true;
378 break;
379 }
380 }
381 if (!use_callchain)
382 symbol_conf.use_callchain = false;
383 }
384
385 /*
386 * set default for tracepoints to print symbols only
387 * if callchains are present
388 */
389 if (symbol_conf.use_callchain &&
390 !output[PERF_TYPE_TRACEPOINT].user_set) {
391 struct perf_event_attr *attr;
392
393 j = PERF_TYPE_TRACEPOINT;
394
395 evlist__for_each_entry(session->evlist, evsel) {
396 if (evsel->attr.type != j)
397 continue;
398
399 attr = &evsel->attr;
400
401 if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) {
402 output[j].fields |= PERF_OUTPUT_IP;
403 output[j].fields |= PERF_OUTPUT_SYM;
404 output[j].fields |= PERF_OUTPUT_DSO;
405 set_print_ip_opts(attr);
406 goto out;
407 }
408 }
409 }
410
411 out:
412 return 0;
413 }
414
415 static void print_sample_iregs(struct perf_sample *sample,
416 struct perf_event_attr *attr)
417 {
418 struct regs_dump *regs = &sample->intr_regs;
419 uint64_t mask = attr->sample_regs_intr;
420 unsigned i = 0, r;
421
422 if (!regs)
423 return;
424
425 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
426 u64 val = regs->regs[i++];
427 printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val);
428 }
429 }
430
431 static void print_sample_start(struct perf_sample *sample,
432 struct thread *thread,
433 struct perf_evsel *evsel)
434 {
435 struct perf_event_attr *attr = &evsel->attr;
436 unsigned long secs;
437 unsigned long usecs;
438 unsigned long long nsecs;
439
440 if (PRINT_FIELD(COMM)) {
441 if (latency_format)
442 printf("%8.8s ", thread__comm_str(thread));
443 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
444 printf("%s ", thread__comm_str(thread));
445 else
446 printf("%16s ", thread__comm_str(thread));
447 }
448
449 if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
450 printf("%5d/%-5d ", sample->pid, sample->tid);
451 else if (PRINT_FIELD(PID))
452 printf("%5d ", sample->pid);
453 else if (PRINT_FIELD(TID))
454 printf("%5d ", sample->tid);
455
456 if (PRINT_FIELD(CPU)) {
457 if (latency_format)
458 printf("%3d ", sample->cpu);
459 else
460 printf("[%03d] ", sample->cpu);
461 }
462
463 if (PRINT_FIELD(TIME)) {
464 nsecs = sample->time;
465 secs = nsecs / NSECS_PER_SEC;
466 nsecs -= secs * NSECS_PER_SEC;
467 usecs = nsecs / NSECS_PER_USEC;
468 if (nanosecs)
469 printf("%5lu.%09llu: ", secs, nsecs);
470 else
471 printf("%5lu.%06lu: ", secs, usecs);
472 }
473 }
474
475 static inline char
476 mispred_str(struct branch_entry *br)
477 {
478 if (!(br->flags.mispred || br->flags.predicted))
479 return '-';
480
481 return br->flags.predicted ? 'P' : 'M';
482 }
483
484 static void print_sample_brstack(struct perf_sample *sample)
485 {
486 struct branch_stack *br = sample->branch_stack;
487 u64 i;
488
489 if (!(br && br->nr))
490 return;
491
492 for (i = 0; i < br->nr; i++) {
493 printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ",
494 br->entries[i].from,
495 br->entries[i].to,
496 mispred_str( br->entries + i),
497 br->entries[i].flags.in_tx? 'X' : '-',
498 br->entries[i].flags.abort? 'A' : '-',
499 br->entries[i].flags.cycles);
500 }
501 }
502
503 static void print_sample_brstacksym(struct perf_sample *sample,
504 struct thread *thread)
505 {
506 struct branch_stack *br = sample->branch_stack;
507 struct addr_location alf, alt;
508 u64 i, from, to;
509
510 if (!(br && br->nr))
511 return;
512
513 for (i = 0; i < br->nr; i++) {
514
515 memset(&alf, 0, sizeof(alf));
516 memset(&alt, 0, sizeof(alt));
517 from = br->entries[i].from;
518 to = br->entries[i].to;
519
520 thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, from, &alf);
521 if (alf.map)
522 alf.sym = map__find_symbol(alf.map, alf.addr, NULL);
523
524 thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
525 if (alt.map)
526 alt.sym = map__find_symbol(alt.map, alt.addr, NULL);
527
528 symbol__fprintf_symname_offs(alf.sym, &alf, stdout);
529 putchar('/');
530 symbol__fprintf_symname_offs(alt.sym, &alt, stdout);
531 printf("/%c/%c/%c/%d ",
532 mispred_str( br->entries + i),
533 br->entries[i].flags.in_tx? 'X' : '-',
534 br->entries[i].flags.abort? 'A' : '-',
535 br->entries[i].flags.cycles);
536 }
537 }
538
539
540 static void print_sample_addr(struct perf_sample *sample,
541 struct thread *thread,
542 struct perf_event_attr *attr)
543 {
544 struct addr_location al;
545
546 printf("%16" PRIx64, sample->addr);
547
548 if (!sample_addr_correlates_sym(attr))
549 return;
550
551 thread__resolve(thread, &al, sample);
552
553 if (PRINT_FIELD(SYM)) {
554 printf(" ");
555 if (PRINT_FIELD(SYMOFFSET))
556 symbol__fprintf_symname_offs(al.sym, &al, stdout);
557 else
558 symbol__fprintf_symname(al.sym, stdout);
559 }
560
561 if (PRINT_FIELD(DSO)) {
562 printf(" (");
563 map__fprintf_dsoname(al.map, stdout);
564 printf(")");
565 }
566 }
567
568 static void print_sample_callindent(struct perf_sample *sample,
569 struct perf_evsel *evsel,
570 struct thread *thread,
571 struct addr_location *al)
572 {
573 struct perf_event_attr *attr = &evsel->attr;
574 size_t depth = thread_stack__depth(thread);
575 struct addr_location addr_al;
576 const char *name = NULL;
577 static int spacing;
578 int len = 0;
579 u64 ip = 0;
580
581 /*
582 * The 'return' has already been popped off the stack so the depth has
583 * to be adjusted to match the 'call'.
584 */
585 if (thread->ts && sample->flags & PERF_IP_FLAG_RETURN)
586 depth += 1;
587
588 if (sample->flags & (PERF_IP_FLAG_CALL | PERF_IP_FLAG_TRACE_BEGIN)) {
589 if (sample_addr_correlates_sym(attr)) {
590 thread__resolve(thread, &addr_al, sample);
591 if (addr_al.sym)
592 name = addr_al.sym->name;
593 else
594 ip = sample->addr;
595 } else {
596 ip = sample->addr;
597 }
598 } else if (sample->flags & (PERF_IP_FLAG_RETURN | PERF_IP_FLAG_TRACE_END)) {
599 if (al->sym)
600 name = al->sym->name;
601 else
602 ip = sample->ip;
603 }
604
605 if (name)
606 len = printf("%*s%s", (int)depth * 4, "", name);
607 else if (ip)
608 len = printf("%*s%16" PRIx64, (int)depth * 4, "", ip);
609
610 if (len < 0)
611 return;
612
613 /*
614 * Try to keep the output length from changing frequently so that the
615 * output lines up more nicely.
616 */
617 if (len > spacing || (len && len < spacing - 52))
618 spacing = round_up(len + 4, 32);
619
620 if (len < spacing)
621 printf("%*s", spacing - len, "");
622 }
623
624 static void print_sample_bts(struct perf_sample *sample,
625 struct perf_evsel *evsel,
626 struct thread *thread,
627 struct addr_location *al)
628 {
629 struct perf_event_attr *attr = &evsel->attr;
630 bool print_srcline_last = false;
631
632 if (PRINT_FIELD(CALLINDENT))
633 print_sample_callindent(sample, evsel, thread, al);
634
635 /* print branch_from information */
636 if (PRINT_FIELD(IP)) {
637 unsigned int print_opts = output[attr->type].print_ip_opts;
638 struct callchain_cursor *cursor = NULL;
639
640 if (symbol_conf.use_callchain && sample->callchain &&
641 thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
642 sample, NULL, NULL, scripting_max_stack) == 0)
643 cursor = &callchain_cursor;
644
645 if (cursor == NULL) {
646 putchar(' ');
647 if (print_opts & EVSEL__PRINT_SRCLINE) {
648 print_srcline_last = true;
649 print_opts &= ~EVSEL__PRINT_SRCLINE;
650 }
651 } else
652 putchar('\n');
653
654 sample__fprintf_sym(sample, al, 0, print_opts, cursor, stdout);
655 }
656
657 /* print branch_to information */
658 if (PRINT_FIELD(ADDR) ||
659 ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
660 !output[attr->type].user_set)) {
661 printf(" => ");
662 print_sample_addr(sample, thread, attr);
663 }
664
665 if (print_srcline_last)
666 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
667
668 printf("\n");
669 }
670
671 static struct {
672 u32 flags;
673 const char *name;
674 } sample_flags[] = {
675 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL, "call"},
676 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN, "return"},
677 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL, "jcc"},
678 {PERF_IP_FLAG_BRANCH, "jmp"},
679 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_INTERRUPT, "int"},
680 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_INTERRUPT, "iret"},
681 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_SYSCALLRET, "syscall"},
682 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_SYSCALLRET, "sysret"},
683 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_ASYNC, "async"},
684 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC | PERF_IP_FLAG_INTERRUPT, "hw int"},
685 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT, "tx abrt"},
686 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_BEGIN, "tr strt"},
687 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_END, "tr end"},
688 {0, NULL}
689 };
690
691 static void print_sample_flags(u32 flags)
692 {
693 const char *chars = PERF_IP_FLAG_CHARS;
694 const int n = strlen(PERF_IP_FLAG_CHARS);
695 bool in_tx = flags & PERF_IP_FLAG_IN_TX;
696 const char *name = NULL;
697 char str[33];
698 int i, pos = 0;
699
700 for (i = 0; sample_flags[i].name ; i++) {
701 if (sample_flags[i].flags == (flags & ~PERF_IP_FLAG_IN_TX)) {
702 name = sample_flags[i].name;
703 break;
704 }
705 }
706
707 for (i = 0; i < n; i++, flags >>= 1) {
708 if (flags & 1)
709 str[pos++] = chars[i];
710 }
711 for (; i < 32; i++, flags >>= 1) {
712 if (flags & 1)
713 str[pos++] = '?';
714 }
715 str[pos] = 0;
716
717 if (name)
718 printf(" %-7s%4s ", name, in_tx ? "(x)" : "");
719 else
720 printf(" %-11s ", str);
721 }
722
723 struct printer_data {
724 int line_no;
725 bool hit_nul;
726 bool is_printable;
727 };
728
729 static void
730 print_sample_bpf_output_printer(enum binary_printer_ops op,
731 unsigned int val,
732 void *extra)
733 {
734 unsigned char ch = (unsigned char)val;
735 struct printer_data *printer_data = extra;
736
737 switch (op) {
738 case BINARY_PRINT_DATA_BEGIN:
739 printf("\n");
740 break;
741 case BINARY_PRINT_LINE_BEGIN:
742 printf("%17s", !printer_data->line_no ? "BPF output:" :
743 " ");
744 break;
745 case BINARY_PRINT_ADDR:
746 printf(" %04x:", val);
747 break;
748 case BINARY_PRINT_NUM_DATA:
749 printf(" %02x", val);
750 break;
751 case BINARY_PRINT_NUM_PAD:
752 printf(" ");
753 break;
754 case BINARY_PRINT_SEP:
755 printf(" ");
756 break;
757 case BINARY_PRINT_CHAR_DATA:
758 if (printer_data->hit_nul && ch)
759 printer_data->is_printable = false;
760
761 if (!isprint(ch)) {
762 printf("%c", '.');
763
764 if (!printer_data->is_printable)
765 break;
766
767 if (ch == '\0')
768 printer_data->hit_nul = true;
769 else
770 printer_data->is_printable = false;
771 } else {
772 printf("%c", ch);
773 }
774 break;
775 case BINARY_PRINT_CHAR_PAD:
776 printf(" ");
777 break;
778 case BINARY_PRINT_LINE_END:
779 printf("\n");
780 printer_data->line_no++;
781 break;
782 case BINARY_PRINT_DATA_END:
783 default:
784 break;
785 }
786 }
787
788 static void print_sample_bpf_output(struct perf_sample *sample)
789 {
790 unsigned int nr_bytes = sample->raw_size;
791 struct printer_data printer_data = {0, false, true};
792
793 print_binary(sample->raw_data, nr_bytes, 8,
794 print_sample_bpf_output_printer, &printer_data);
795
796 if (printer_data.is_printable && printer_data.hit_nul)
797 printf("%17s \"%s\"\n", "BPF string:",
798 (char *)(sample->raw_data));
799 }
800
801 struct perf_script {
802 struct perf_tool tool;
803 struct perf_session *session;
804 bool show_task_events;
805 bool show_mmap_events;
806 bool show_switch_events;
807 bool allocated;
808 struct cpu_map *cpus;
809 struct thread_map *threads;
810 int name_width;
811 };
812
813 static int perf_evlist__max_name_len(struct perf_evlist *evlist)
814 {
815 struct perf_evsel *evsel;
816 int max = 0;
817
818 evlist__for_each_entry(evlist, evsel) {
819 int len = strlen(perf_evsel__name(evsel));
820
821 max = MAX(len, max);
822 }
823
824 return max;
825 }
826
827 static size_t data_src__printf(u64 data_src)
828 {
829 struct mem_info mi = { .data_src.val = data_src };
830 char decode[100];
831 char out[100];
832 static int maxlen;
833 int len;
834
835 perf_script__meminfo_scnprintf(decode, 100, &mi);
836
837 len = scnprintf(out, 100, "%16" PRIx64 " %s", data_src, decode);
838 if (maxlen < len)
839 maxlen = len;
840
841 return printf("%-*s", maxlen, out);
842 }
843
844 static void process_event(struct perf_script *script,
845 struct perf_sample *sample, struct perf_evsel *evsel,
846 struct addr_location *al)
847 {
848 struct thread *thread = al->thread;
849 struct perf_event_attr *attr = &evsel->attr;
850
851 if (output[attr->type].fields == 0)
852 return;
853
854 print_sample_start(sample, thread, evsel);
855
856 if (PRINT_FIELD(PERIOD))
857 printf("%10" PRIu64 " ", sample->period);
858
859 if (PRINT_FIELD(EVNAME)) {
860 const char *evname = perf_evsel__name(evsel);
861
862 if (!script->name_width)
863 script->name_width = perf_evlist__max_name_len(script->session->evlist);
864
865 printf("%*s: ", script->name_width,
866 evname ? evname : "[unknown]");
867 }
868
869 if (print_flags)
870 print_sample_flags(sample->flags);
871
872 if (is_bts_event(attr)) {
873 print_sample_bts(sample, evsel, thread, al);
874 return;
875 }
876
877 if (PRINT_FIELD(TRACE))
878 event_format__print(evsel->tp_format, sample->cpu,
879 sample->raw_data, sample->raw_size);
880 if (PRINT_FIELD(ADDR))
881 print_sample_addr(sample, thread, attr);
882
883 if (PRINT_FIELD(DATA_SRC))
884 data_src__printf(sample->data_src);
885
886 if (PRINT_FIELD(WEIGHT))
887 printf("%16" PRIu64, sample->weight);
888
889 if (PRINT_FIELD(IP)) {
890 struct callchain_cursor *cursor = NULL;
891
892 if (symbol_conf.use_callchain && sample->callchain &&
893 thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
894 sample, NULL, NULL, scripting_max_stack) == 0)
895 cursor = &callchain_cursor;
896
897 putchar(cursor ? '\n' : ' ');
898 sample__fprintf_sym(sample, al, 0, output[attr->type].print_ip_opts, cursor, stdout);
899 }
900
901 if (PRINT_FIELD(IREGS))
902 print_sample_iregs(sample, attr);
903
904 if (PRINT_FIELD(BRSTACK))
905 print_sample_brstack(sample);
906 else if (PRINT_FIELD(BRSTACKSYM))
907 print_sample_brstacksym(sample, thread);
908
909 if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
910 print_sample_bpf_output(sample);
911
912 printf("\n");
913 }
914
915 static struct scripting_ops *scripting_ops;
916
917 static void __process_stat(struct perf_evsel *counter, u64 tstamp)
918 {
919 int nthreads = thread_map__nr(counter->threads);
920 int ncpus = perf_evsel__nr_cpus(counter);
921 int cpu, thread;
922 static int header_printed;
923
924 if (counter->system_wide)
925 nthreads = 1;
926
927 if (!header_printed) {
928 printf("%3s %8s %15s %15s %15s %15s %s\n",
929 "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT");
930 header_printed = 1;
931 }
932
933 for (thread = 0; thread < nthreads; thread++) {
934 for (cpu = 0; cpu < ncpus; cpu++) {
935 struct perf_counts_values *counts;
936
937 counts = perf_counts(counter->counts, cpu, thread);
938
939 printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n",
940 counter->cpus->map[cpu],
941 thread_map__pid(counter->threads, thread),
942 counts->val,
943 counts->ena,
944 counts->run,
945 tstamp,
946 perf_evsel__name(counter));
947 }
948 }
949 }
950
951 static void process_stat(struct perf_evsel *counter, u64 tstamp)
952 {
953 if (scripting_ops && scripting_ops->process_stat)
954 scripting_ops->process_stat(&stat_config, counter, tstamp);
955 else
956 __process_stat(counter, tstamp);
957 }
958
959 static void process_stat_interval(u64 tstamp)
960 {
961 if (scripting_ops && scripting_ops->process_stat_interval)
962 scripting_ops->process_stat_interval(tstamp);
963 }
964
965 static void setup_scripting(void)
966 {
967 setup_perl_scripting();
968 setup_python_scripting();
969 }
970
971 static int flush_scripting(void)
972 {
973 return scripting_ops ? scripting_ops->flush_script() : 0;
974 }
975
976 static int cleanup_scripting(void)
977 {
978 pr_debug("\nperf script stopped\n");
979
980 return scripting_ops ? scripting_ops->stop_script() : 0;
981 }
982
983 static int process_sample_event(struct perf_tool *tool,
984 union perf_event *event,
985 struct perf_sample *sample,
986 struct perf_evsel *evsel,
987 struct machine *machine)
988 {
989 struct perf_script *scr = container_of(tool, struct perf_script, tool);
990 struct addr_location al;
991
992 if (debug_mode) {
993 if (sample->time < last_timestamp) {
994 pr_err("Samples misordered, previous: %" PRIu64
995 " this: %" PRIu64 "\n", last_timestamp,
996 sample->time);
997 nr_unordered++;
998 }
999 last_timestamp = sample->time;
1000 return 0;
1001 }
1002
1003 if (machine__resolve(machine, &al, sample) < 0) {
1004 pr_err("problem processing %d event, skipping it.\n",
1005 event->header.type);
1006 return -1;
1007 }
1008
1009 if (al.filtered)
1010 goto out_put;
1011
1012 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
1013 goto out_put;
1014
1015 if (scripting_ops)
1016 scripting_ops->process_event(event, sample, evsel, &al);
1017 else
1018 process_event(scr, sample, evsel, &al);
1019
1020 out_put:
1021 addr_location__put(&al);
1022 return 0;
1023 }
1024
1025 static int process_attr(struct perf_tool *tool, union perf_event *event,
1026 struct perf_evlist **pevlist)
1027 {
1028 struct perf_script *scr = container_of(tool, struct perf_script, tool);
1029 struct perf_evlist *evlist;
1030 struct perf_evsel *evsel, *pos;
1031 int err;
1032
1033 err = perf_event__process_attr(tool, event, pevlist);
1034 if (err)
1035 return err;
1036
1037 evlist = *pevlist;
1038 evsel = perf_evlist__last(*pevlist);
1039
1040 if (evsel->attr.type >= PERF_TYPE_MAX)
1041 return 0;
1042
1043 evlist__for_each_entry(evlist, pos) {
1044 if (pos->attr.type == evsel->attr.type && pos != evsel)
1045 return 0;
1046 }
1047
1048 set_print_ip_opts(&evsel->attr);
1049
1050 if (evsel->attr.sample_type)
1051 err = perf_evsel__check_attr(evsel, scr->session);
1052
1053 return err;
1054 }
1055
1056 static int process_comm_event(struct perf_tool *tool,
1057 union perf_event *event,
1058 struct perf_sample *sample,
1059 struct machine *machine)
1060 {
1061 struct thread *thread;
1062 struct perf_script *script = container_of(tool, struct perf_script, tool);
1063 struct perf_session *session = script->session;
1064 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1065 int ret = -1;
1066
1067 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
1068 if (thread == NULL) {
1069 pr_debug("problem processing COMM event, skipping it.\n");
1070 return -1;
1071 }
1072
1073 if (perf_event__process_comm(tool, event, sample, machine) < 0)
1074 goto out;
1075
1076 if (!evsel->attr.sample_id_all) {
1077 sample->cpu = 0;
1078 sample->time = 0;
1079 sample->tid = event->comm.tid;
1080 sample->pid = event->comm.pid;
1081 }
1082 print_sample_start(sample, thread, evsel);
1083 perf_event__fprintf(event, stdout);
1084 ret = 0;
1085 out:
1086 thread__put(thread);
1087 return ret;
1088 }
1089
1090 static int process_fork_event(struct perf_tool *tool,
1091 union perf_event *event,
1092 struct perf_sample *sample,
1093 struct machine *machine)
1094 {
1095 struct thread *thread;
1096 struct perf_script *script = container_of(tool, struct perf_script, tool);
1097 struct perf_session *session = script->session;
1098 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1099
1100 if (perf_event__process_fork(tool, event, sample, machine) < 0)
1101 return -1;
1102
1103 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
1104 if (thread == NULL) {
1105 pr_debug("problem processing FORK event, skipping it.\n");
1106 return -1;
1107 }
1108
1109 if (!evsel->attr.sample_id_all) {
1110 sample->cpu = 0;
1111 sample->time = event->fork.time;
1112 sample->tid = event->fork.tid;
1113 sample->pid = event->fork.pid;
1114 }
1115 print_sample_start(sample, thread, evsel);
1116 perf_event__fprintf(event, stdout);
1117 thread__put(thread);
1118
1119 return 0;
1120 }
1121 static int process_exit_event(struct perf_tool *tool,
1122 union perf_event *event,
1123 struct perf_sample *sample,
1124 struct machine *machine)
1125 {
1126 int err = 0;
1127 struct thread *thread;
1128 struct perf_script *script = container_of(tool, struct perf_script, tool);
1129 struct perf_session *session = script->session;
1130 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1131
1132 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
1133 if (thread == NULL) {
1134 pr_debug("problem processing EXIT event, skipping it.\n");
1135 return -1;
1136 }
1137
1138 if (!evsel->attr.sample_id_all) {
1139 sample->cpu = 0;
1140 sample->time = 0;
1141 sample->tid = event->fork.tid;
1142 sample->pid = event->fork.pid;
1143 }
1144 print_sample_start(sample, thread, evsel);
1145 perf_event__fprintf(event, stdout);
1146
1147 if (perf_event__process_exit(tool, event, sample, machine) < 0)
1148 err = -1;
1149
1150 thread__put(thread);
1151 return err;
1152 }
1153
1154 static int process_mmap_event(struct perf_tool *tool,
1155 union perf_event *event,
1156 struct perf_sample *sample,
1157 struct machine *machine)
1158 {
1159 struct thread *thread;
1160 struct perf_script *script = container_of(tool, struct perf_script, tool);
1161 struct perf_session *session = script->session;
1162 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1163
1164 if (perf_event__process_mmap(tool, event, sample, machine) < 0)
1165 return -1;
1166
1167 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid);
1168 if (thread == NULL) {
1169 pr_debug("problem processing MMAP event, skipping it.\n");
1170 return -1;
1171 }
1172
1173 if (!evsel->attr.sample_id_all) {
1174 sample->cpu = 0;
1175 sample->time = 0;
1176 sample->tid = event->mmap.tid;
1177 sample->pid = event->mmap.pid;
1178 }
1179 print_sample_start(sample, thread, evsel);
1180 perf_event__fprintf(event, stdout);
1181 thread__put(thread);
1182 return 0;
1183 }
1184
1185 static int process_mmap2_event(struct perf_tool *tool,
1186 union perf_event *event,
1187 struct perf_sample *sample,
1188 struct machine *machine)
1189 {
1190 struct thread *thread;
1191 struct perf_script *script = container_of(tool, struct perf_script, tool);
1192 struct perf_session *session = script->session;
1193 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1194
1195 if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
1196 return -1;
1197
1198 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid);
1199 if (thread == NULL) {
1200 pr_debug("problem processing MMAP2 event, skipping it.\n");
1201 return -1;
1202 }
1203
1204 if (!evsel->attr.sample_id_all) {
1205 sample->cpu = 0;
1206 sample->time = 0;
1207 sample->tid = event->mmap2.tid;
1208 sample->pid = event->mmap2.pid;
1209 }
1210 print_sample_start(sample, thread, evsel);
1211 perf_event__fprintf(event, stdout);
1212 thread__put(thread);
1213 return 0;
1214 }
1215
1216 static int process_switch_event(struct perf_tool *tool,
1217 union perf_event *event,
1218 struct perf_sample *sample,
1219 struct machine *machine)
1220 {
1221 struct thread *thread;
1222 struct perf_script *script = container_of(tool, struct perf_script, tool);
1223 struct perf_session *session = script->session;
1224 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1225
1226 if (perf_event__process_switch(tool, event, sample, machine) < 0)
1227 return -1;
1228
1229 thread = machine__findnew_thread(machine, sample->pid,
1230 sample->tid);
1231 if (thread == NULL) {
1232 pr_debug("problem processing SWITCH event, skipping it.\n");
1233 return -1;
1234 }
1235
1236 print_sample_start(sample, thread, evsel);
1237 perf_event__fprintf(event, stdout);
1238 thread__put(thread);
1239 return 0;
1240 }
1241
1242 static void sig_handler(int sig __maybe_unused)
1243 {
1244 session_done = 1;
1245 }
1246
1247 static int __cmd_script(struct perf_script *script)
1248 {
1249 int ret;
1250
1251 signal(SIGINT, sig_handler);
1252
1253 /* override event processing functions */
1254 if (script->show_task_events) {
1255 script->tool.comm = process_comm_event;
1256 script->tool.fork = process_fork_event;
1257 script->tool.exit = process_exit_event;
1258 }
1259 if (script->show_mmap_events) {
1260 script->tool.mmap = process_mmap_event;
1261 script->tool.mmap2 = process_mmap2_event;
1262 }
1263 if (script->show_switch_events)
1264 script->tool.context_switch = process_switch_event;
1265
1266 ret = perf_session__process_events(script->session);
1267
1268 if (debug_mode)
1269 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
1270
1271 return ret;
1272 }
1273
1274 struct script_spec {
1275 struct list_head node;
1276 struct scripting_ops *ops;
1277 char spec[0];
1278 };
1279
1280 static LIST_HEAD(script_specs);
1281
1282 static struct script_spec *script_spec__new(const char *spec,
1283 struct scripting_ops *ops)
1284 {
1285 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
1286
1287 if (s != NULL) {
1288 strcpy(s->spec, spec);
1289 s->ops = ops;
1290 }
1291
1292 return s;
1293 }
1294
1295 static void script_spec__add(struct script_spec *s)
1296 {
1297 list_add_tail(&s->node, &script_specs);
1298 }
1299
1300 static struct script_spec *script_spec__find(const char *spec)
1301 {
1302 struct script_spec *s;
1303
1304 list_for_each_entry(s, &script_specs, node)
1305 if (strcasecmp(s->spec, spec) == 0)
1306 return s;
1307 return NULL;
1308 }
1309
1310 int script_spec_register(const char *spec, struct scripting_ops *ops)
1311 {
1312 struct script_spec *s;
1313
1314 s = script_spec__find(spec);
1315 if (s)
1316 return -1;
1317
1318 s = script_spec__new(spec, ops);
1319 if (!s)
1320 return -1;
1321 else
1322 script_spec__add(s);
1323
1324 return 0;
1325 }
1326
1327 static struct scripting_ops *script_spec__lookup(const char *spec)
1328 {
1329 struct script_spec *s = script_spec__find(spec);
1330 if (!s)
1331 return NULL;
1332
1333 return s->ops;
1334 }
1335
1336 static void list_available_languages(void)
1337 {
1338 struct script_spec *s;
1339
1340 fprintf(stderr, "\n");
1341 fprintf(stderr, "Scripting language extensions (used in "
1342 "perf script -s [spec:]script.[spec]):\n\n");
1343
1344 list_for_each_entry(s, &script_specs, node)
1345 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
1346
1347 fprintf(stderr, "\n");
1348 }
1349
1350 static int parse_scriptname(const struct option *opt __maybe_unused,
1351 const char *str, int unset __maybe_unused)
1352 {
1353 char spec[PATH_MAX];
1354 const char *script, *ext;
1355 int len;
1356
1357 if (strcmp(str, "lang") == 0) {
1358 list_available_languages();
1359 exit(0);
1360 }
1361
1362 script = strchr(str, ':');
1363 if (script) {
1364 len = script - str;
1365 if (len >= PATH_MAX) {
1366 fprintf(stderr, "invalid language specifier");
1367 return -1;
1368 }
1369 strncpy(spec, str, len);
1370 spec[len] = '\0';
1371 scripting_ops = script_spec__lookup(spec);
1372 if (!scripting_ops) {
1373 fprintf(stderr, "invalid language specifier");
1374 return -1;
1375 }
1376 script++;
1377 } else {
1378 script = str;
1379 ext = strrchr(script, '.');
1380 if (!ext) {
1381 fprintf(stderr, "invalid script extension");
1382 return -1;
1383 }
1384 scripting_ops = script_spec__lookup(++ext);
1385 if (!scripting_ops) {
1386 fprintf(stderr, "invalid script extension");
1387 return -1;
1388 }
1389 }
1390
1391 script_name = strdup(script);
1392
1393 return 0;
1394 }
1395
1396 static int parse_output_fields(const struct option *opt __maybe_unused,
1397 const char *arg, int unset __maybe_unused)
1398 {
1399 char *tok;
1400 int i, imax = ARRAY_SIZE(all_output_options);
1401 int j;
1402 int rc = 0;
1403 char *str = strdup(arg);
1404 int type = -1;
1405
1406 if (!str)
1407 return -ENOMEM;
1408
1409 /* first word can state for which event type the user is specifying
1410 * the fields. If no type exists, the specified fields apply to all
1411 * event types found in the file minus the invalid fields for a type.
1412 */
1413 tok = strchr(str, ':');
1414 if (tok) {
1415 *tok = '\0';
1416 tok++;
1417 if (!strcmp(str, "hw"))
1418 type = PERF_TYPE_HARDWARE;
1419 else if (!strcmp(str, "sw"))
1420 type = PERF_TYPE_SOFTWARE;
1421 else if (!strcmp(str, "trace"))
1422 type = PERF_TYPE_TRACEPOINT;
1423 else if (!strcmp(str, "raw"))
1424 type = PERF_TYPE_RAW;
1425 else if (!strcmp(str, "break"))
1426 type = PERF_TYPE_BREAKPOINT;
1427 else {
1428 fprintf(stderr, "Invalid event type in field string.\n");
1429 rc = -EINVAL;
1430 goto out;
1431 }
1432
1433 if (output[type].user_set)
1434 pr_warning("Overriding previous field request for %s events.\n",
1435 event_type(type));
1436
1437 output[type].fields = 0;
1438 output[type].user_set = true;
1439 output[type].wildcard_set = false;
1440
1441 } else {
1442 tok = str;
1443 if (strlen(str) == 0) {
1444 fprintf(stderr,
1445 "Cannot set fields to 'none' for all event types.\n");
1446 rc = -EINVAL;
1447 goto out;
1448 }
1449
1450 if (output_set_by_user())
1451 pr_warning("Overriding previous field request for all events.\n");
1452
1453 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1454 output[j].fields = 0;
1455 output[j].user_set = true;
1456 output[j].wildcard_set = true;
1457 }
1458 }
1459
1460 for (tok = strtok(tok, ","); tok; tok = strtok(NULL, ",")) {
1461 for (i = 0; i < imax; ++i) {
1462 if (strcmp(tok, all_output_options[i].str) == 0)
1463 break;
1464 }
1465 if (i == imax && strcmp(tok, "flags") == 0) {
1466 print_flags = true;
1467 continue;
1468 }
1469 if (i == imax) {
1470 fprintf(stderr, "Invalid field requested.\n");
1471 rc = -EINVAL;
1472 goto out;
1473 }
1474
1475 if (type == -1) {
1476 /* add user option to all events types for
1477 * which it is valid
1478 */
1479 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1480 if (output[j].invalid_fields & all_output_options[i].field) {
1481 pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
1482 all_output_options[i].str, event_type(j));
1483 } else
1484 output[j].fields |= all_output_options[i].field;
1485 }
1486 } else {
1487 if (output[type].invalid_fields & all_output_options[i].field) {
1488 fprintf(stderr, "\'%s\' not valid for %s events.\n",
1489 all_output_options[i].str, event_type(type));
1490
1491 rc = -EINVAL;
1492 goto out;
1493 }
1494 output[type].fields |= all_output_options[i].field;
1495 }
1496 }
1497
1498 if (type >= 0) {
1499 if (output[type].fields == 0) {
1500 pr_debug("No fields requested for %s type. "
1501 "Events will not be displayed.\n", event_type(type));
1502 }
1503 }
1504
1505 out:
1506 free(str);
1507 return rc;
1508 }
1509
1510 /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */
1511 static int is_directory(const char *base_path, const struct dirent *dent)
1512 {
1513 char path[PATH_MAX];
1514 struct stat st;
1515
1516 sprintf(path, "%s/%s", base_path, dent->d_name);
1517 if (stat(path, &st))
1518 return 0;
1519
1520 return S_ISDIR(st.st_mode);
1521 }
1522
1523 #define for_each_lang(scripts_path, scripts_dir, lang_dirent) \
1524 while ((lang_dirent = readdir(scripts_dir)) != NULL) \
1525 if ((lang_dirent->d_type == DT_DIR || \
1526 (lang_dirent->d_type == DT_UNKNOWN && \
1527 is_directory(scripts_path, lang_dirent))) && \
1528 (strcmp(lang_dirent->d_name, ".")) && \
1529 (strcmp(lang_dirent->d_name, "..")))
1530
1531 #define for_each_script(lang_path, lang_dir, script_dirent) \
1532 while ((script_dirent = readdir(lang_dir)) != NULL) \
1533 if (script_dirent->d_type != DT_DIR && \
1534 (script_dirent->d_type != DT_UNKNOWN || \
1535 !is_directory(lang_path, script_dirent)))
1536
1537
1538 #define RECORD_SUFFIX "-record"
1539 #define REPORT_SUFFIX "-report"
1540
1541 struct script_desc {
1542 struct list_head node;
1543 char *name;
1544 char *half_liner;
1545 char *args;
1546 };
1547
1548 static LIST_HEAD(script_descs);
1549
1550 static struct script_desc *script_desc__new(const char *name)
1551 {
1552 struct script_desc *s = zalloc(sizeof(*s));
1553
1554 if (s != NULL && name)
1555 s->name = strdup(name);
1556
1557 return s;
1558 }
1559
1560 static void script_desc__delete(struct script_desc *s)
1561 {
1562 zfree(&s->name);
1563 zfree(&s->half_liner);
1564 zfree(&s->args);
1565 free(s);
1566 }
1567
1568 static void script_desc__add(struct script_desc *s)
1569 {
1570 list_add_tail(&s->node, &script_descs);
1571 }
1572
1573 static struct script_desc *script_desc__find(const char *name)
1574 {
1575 struct script_desc *s;
1576
1577 list_for_each_entry(s, &script_descs, node)
1578 if (strcasecmp(s->name, name) == 0)
1579 return s;
1580 return NULL;
1581 }
1582
1583 static struct script_desc *script_desc__findnew(const char *name)
1584 {
1585 struct script_desc *s = script_desc__find(name);
1586
1587 if (s)
1588 return s;
1589
1590 s = script_desc__new(name);
1591 if (!s)
1592 goto out_delete_desc;
1593
1594 script_desc__add(s);
1595
1596 return s;
1597
1598 out_delete_desc:
1599 script_desc__delete(s);
1600
1601 return NULL;
1602 }
1603
1604 static const char *ends_with(const char *str, const char *suffix)
1605 {
1606 size_t suffix_len = strlen(suffix);
1607 const char *p = str;
1608
1609 if (strlen(str) > suffix_len) {
1610 p = str + strlen(str) - suffix_len;
1611 if (!strncmp(p, suffix, suffix_len))
1612 return p;
1613 }
1614
1615 return NULL;
1616 }
1617
1618 static int read_script_info(struct script_desc *desc, const char *filename)
1619 {
1620 char line[BUFSIZ], *p;
1621 FILE *fp;
1622
1623 fp = fopen(filename, "r");
1624 if (!fp)
1625 return -1;
1626
1627 while (fgets(line, sizeof(line), fp)) {
1628 p = ltrim(line);
1629 if (strlen(p) == 0)
1630 continue;
1631 if (*p != '#')
1632 continue;
1633 p++;
1634 if (strlen(p) && *p == '!')
1635 continue;
1636
1637 p = ltrim(p);
1638 if (strlen(p) && p[strlen(p) - 1] == '\n')
1639 p[strlen(p) - 1] = '\0';
1640
1641 if (!strncmp(p, "description:", strlen("description:"))) {
1642 p += strlen("description:");
1643 desc->half_liner = strdup(ltrim(p));
1644 continue;
1645 }
1646
1647 if (!strncmp(p, "args:", strlen("args:"))) {
1648 p += strlen("args:");
1649 desc->args = strdup(ltrim(p));
1650 continue;
1651 }
1652 }
1653
1654 fclose(fp);
1655
1656 return 0;
1657 }
1658
1659 static char *get_script_root(struct dirent *script_dirent, const char *suffix)
1660 {
1661 char *script_root, *str;
1662
1663 script_root = strdup(script_dirent->d_name);
1664 if (!script_root)
1665 return NULL;
1666
1667 str = (char *)ends_with(script_root, suffix);
1668 if (!str) {
1669 free(script_root);
1670 return NULL;
1671 }
1672
1673 *str = '\0';
1674 return script_root;
1675 }
1676
1677 static int list_available_scripts(const struct option *opt __maybe_unused,
1678 const char *s __maybe_unused,
1679 int unset __maybe_unused)
1680 {
1681 struct dirent *script_dirent, *lang_dirent;
1682 char scripts_path[MAXPATHLEN];
1683 DIR *scripts_dir, *lang_dir;
1684 char script_path[MAXPATHLEN];
1685 char lang_path[MAXPATHLEN];
1686 struct script_desc *desc;
1687 char first_half[BUFSIZ];
1688 char *script_root;
1689
1690 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1691
1692 scripts_dir = opendir(scripts_path);
1693 if (!scripts_dir)
1694 return -1;
1695
1696 for_each_lang(scripts_path, scripts_dir, lang_dirent) {
1697 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1698 lang_dirent->d_name);
1699 lang_dir = opendir(lang_path);
1700 if (!lang_dir)
1701 continue;
1702
1703 for_each_script(lang_path, lang_dir, script_dirent) {
1704 script_root = get_script_root(script_dirent, REPORT_SUFFIX);
1705 if (script_root) {
1706 desc = script_desc__findnew(script_root);
1707 snprintf(script_path, MAXPATHLEN, "%s/%s",
1708 lang_path, script_dirent->d_name);
1709 read_script_info(desc, script_path);
1710 free(script_root);
1711 }
1712 }
1713 }
1714
1715 fprintf(stdout, "List of available trace scripts:\n");
1716 list_for_each_entry(desc, &script_descs, node) {
1717 sprintf(first_half, "%s %s", desc->name,
1718 desc->args ? desc->args : "");
1719 fprintf(stdout, " %-36s %s\n", first_half,
1720 desc->half_liner ? desc->half_liner : "");
1721 }
1722
1723 exit(0);
1724 }
1725
1726 /*
1727 * Some scripts specify the required events in their "xxx-record" file,
1728 * this function will check if the events in perf.data match those
1729 * mentioned in the "xxx-record".
1730 *
1731 * Fixme: All existing "xxx-record" are all in good formats "-e event ",
1732 * which is covered well now. And new parsing code should be added to
1733 * cover the future complexing formats like event groups etc.
1734 */
1735 static int check_ev_match(char *dir_name, char *scriptname,
1736 struct perf_session *session)
1737 {
1738 char filename[MAXPATHLEN], evname[128];
1739 char line[BUFSIZ], *p;
1740 struct perf_evsel *pos;
1741 int match, len;
1742 FILE *fp;
1743
1744 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname);
1745
1746 fp = fopen(filename, "r");
1747 if (!fp)
1748 return -1;
1749
1750 while (fgets(line, sizeof(line), fp)) {
1751 p = ltrim(line);
1752 if (*p == '#')
1753 continue;
1754
1755 while (strlen(p)) {
1756 p = strstr(p, "-e");
1757 if (!p)
1758 break;
1759
1760 p += 2;
1761 p = ltrim(p);
1762 len = strcspn(p, " \t");
1763 if (!len)
1764 break;
1765
1766 snprintf(evname, len + 1, "%s", p);
1767
1768 match = 0;
1769 evlist__for_each_entry(session->evlist, pos) {
1770 if (!strcmp(perf_evsel__name(pos), evname)) {
1771 match = 1;
1772 break;
1773 }
1774 }
1775
1776 if (!match) {
1777 fclose(fp);
1778 return -1;
1779 }
1780 }
1781 }
1782
1783 fclose(fp);
1784 return 0;
1785 }
1786
1787 /*
1788 * Return -1 if none is found, otherwise the actual scripts number.
1789 *
1790 * Currently the only user of this function is the script browser, which
1791 * will list all statically runnable scripts, select one, execute it and
1792 * show the output in a perf browser.
1793 */
1794 int find_scripts(char **scripts_array, char **scripts_path_array)
1795 {
1796 struct dirent *script_dirent, *lang_dirent;
1797 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
1798 DIR *scripts_dir, *lang_dir;
1799 struct perf_session *session;
1800 struct perf_data_file file = {
1801 .path = input_name,
1802 .mode = PERF_DATA_MODE_READ,
1803 };
1804 char *temp;
1805 int i = 0;
1806
1807 session = perf_session__new(&file, false, NULL);
1808 if (!session)
1809 return -1;
1810
1811 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1812
1813 scripts_dir = opendir(scripts_path);
1814 if (!scripts_dir) {
1815 perf_session__delete(session);
1816 return -1;
1817 }
1818
1819 for_each_lang(scripts_path, scripts_dir, lang_dirent) {
1820 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path,
1821 lang_dirent->d_name);
1822 #ifdef NO_LIBPERL
1823 if (strstr(lang_path, "perl"))
1824 continue;
1825 #endif
1826 #ifdef NO_LIBPYTHON
1827 if (strstr(lang_path, "python"))
1828 continue;
1829 #endif
1830
1831 lang_dir = opendir(lang_path);
1832 if (!lang_dir)
1833 continue;
1834
1835 for_each_script(lang_path, lang_dir, script_dirent) {
1836 /* Skip those real time scripts: xxxtop.p[yl] */
1837 if (strstr(script_dirent->d_name, "top."))
1838 continue;
1839 sprintf(scripts_path_array[i], "%s/%s", lang_path,
1840 script_dirent->d_name);
1841 temp = strchr(script_dirent->d_name, '.');
1842 snprintf(scripts_array[i],
1843 (temp - script_dirent->d_name) + 1,
1844 "%s", script_dirent->d_name);
1845
1846 if (check_ev_match(lang_path,
1847 scripts_array[i], session))
1848 continue;
1849
1850 i++;
1851 }
1852 closedir(lang_dir);
1853 }
1854
1855 closedir(scripts_dir);
1856 perf_session__delete(session);
1857 return i;
1858 }
1859
1860 static char *get_script_path(const char *script_root, const char *suffix)
1861 {
1862 struct dirent *script_dirent, *lang_dirent;
1863 char scripts_path[MAXPATHLEN];
1864 char script_path[MAXPATHLEN];
1865 DIR *scripts_dir, *lang_dir;
1866 char lang_path[MAXPATHLEN];
1867 char *__script_root;
1868
1869 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1870
1871 scripts_dir = opendir(scripts_path);
1872 if (!scripts_dir)
1873 return NULL;
1874
1875 for_each_lang(scripts_path, scripts_dir, lang_dirent) {
1876 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1877 lang_dirent->d_name);
1878 lang_dir = opendir(lang_path);
1879 if (!lang_dir)
1880 continue;
1881
1882 for_each_script(lang_path, lang_dir, script_dirent) {
1883 __script_root = get_script_root(script_dirent, suffix);
1884 if (__script_root && !strcmp(script_root, __script_root)) {
1885 free(__script_root);
1886 closedir(lang_dir);
1887 closedir(scripts_dir);
1888 snprintf(script_path, MAXPATHLEN, "%s/%s",
1889 lang_path, script_dirent->d_name);
1890 return strdup(script_path);
1891 }
1892 free(__script_root);
1893 }
1894 closedir(lang_dir);
1895 }
1896 closedir(scripts_dir);
1897
1898 return NULL;
1899 }
1900
1901 static bool is_top_script(const char *script_path)
1902 {
1903 return ends_with(script_path, "top") == NULL ? false : true;
1904 }
1905
1906 static int has_required_arg(char *script_path)
1907 {
1908 struct script_desc *desc;
1909 int n_args = 0;
1910 char *p;
1911
1912 desc = script_desc__new(NULL);
1913
1914 if (read_script_info(desc, script_path))
1915 goto out;
1916
1917 if (!desc->args)
1918 goto out;
1919
1920 for (p = desc->args; *p; p++)
1921 if (*p == '<')
1922 n_args++;
1923 out:
1924 script_desc__delete(desc);
1925
1926 return n_args;
1927 }
1928
1929 static int have_cmd(int argc, const char **argv)
1930 {
1931 char **__argv = malloc(sizeof(const char *) * argc);
1932
1933 if (!__argv) {
1934 pr_err("malloc failed\n");
1935 return -1;
1936 }
1937
1938 memcpy(__argv, argv, sizeof(const char *) * argc);
1939 argc = parse_options(argc, (const char **)__argv, record_options,
1940 NULL, PARSE_OPT_STOP_AT_NON_OPTION);
1941 free(__argv);
1942
1943 system_wide = (argc == 0);
1944
1945 return 0;
1946 }
1947
1948 static void script__setup_sample_type(struct perf_script *script)
1949 {
1950 struct perf_session *session = script->session;
1951 u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
1952
1953 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
1954 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
1955 (sample_type & PERF_SAMPLE_STACK_USER))
1956 callchain_param.record_mode = CALLCHAIN_DWARF;
1957 else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
1958 callchain_param.record_mode = CALLCHAIN_LBR;
1959 else
1960 callchain_param.record_mode = CALLCHAIN_FP;
1961 }
1962 }
1963
1964 static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
1965 union perf_event *event,
1966 struct perf_session *session)
1967 {
1968 struct stat_round_event *round = &event->stat_round;
1969 struct perf_evsel *counter;
1970
1971 evlist__for_each_entry(session->evlist, counter) {
1972 perf_stat_process_counter(&stat_config, counter);
1973 process_stat(counter, round->time);
1974 }
1975
1976 process_stat_interval(round->time);
1977 return 0;
1978 }
1979
1980 static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
1981 union perf_event *event,
1982 struct perf_session *session __maybe_unused)
1983 {
1984 perf_event__read_stat_config(&stat_config, &event->stat_config);
1985 return 0;
1986 }
1987
1988 static int set_maps(struct perf_script *script)
1989 {
1990 struct perf_evlist *evlist = script->session->evlist;
1991
1992 if (!script->cpus || !script->threads)
1993 return 0;
1994
1995 if (WARN_ONCE(script->allocated, "stats double allocation\n"))
1996 return -EINVAL;
1997
1998 perf_evlist__set_maps(evlist, script->cpus, script->threads);
1999
2000 if (perf_evlist__alloc_stats(evlist, true))
2001 return -ENOMEM;
2002
2003 script->allocated = true;
2004 return 0;
2005 }
2006
2007 static
2008 int process_thread_map_event(struct perf_tool *tool,
2009 union perf_event *event,
2010 struct perf_session *session __maybe_unused)
2011 {
2012 struct perf_script *script = container_of(tool, struct perf_script, tool);
2013
2014 if (script->threads) {
2015 pr_warning("Extra thread map event, ignoring.\n");
2016 return 0;
2017 }
2018
2019 script->threads = thread_map__new_event(&event->thread_map);
2020 if (!script->threads)
2021 return -ENOMEM;
2022
2023 return set_maps(script);
2024 }
2025
2026 static
2027 int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
2028 union perf_event *event,
2029 struct perf_session *session __maybe_unused)
2030 {
2031 struct perf_script *script = container_of(tool, struct perf_script, tool);
2032
2033 if (script->cpus) {
2034 pr_warning("Extra cpu map event, ignoring.\n");
2035 return 0;
2036 }
2037
2038 script->cpus = cpu_map__new_data(&event->cpu_map.data);
2039 if (!script->cpus)
2040 return -ENOMEM;
2041
2042 return set_maps(script);
2043 }
2044
2045 int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
2046 {
2047 bool show_full_info = false;
2048 bool header = false;
2049 bool header_only = false;
2050 bool script_started = false;
2051 char *rec_script_path = NULL;
2052 char *rep_script_path = NULL;
2053 struct perf_session *session;
2054 struct itrace_synth_opts itrace_synth_opts = { .set = false, };
2055 char *script_path = NULL;
2056 const char **__argv;
2057 int i, j, err = 0;
2058 struct perf_script script = {
2059 .tool = {
2060 .sample = process_sample_event,
2061 .mmap = perf_event__process_mmap,
2062 .mmap2 = perf_event__process_mmap2,
2063 .comm = perf_event__process_comm,
2064 .exit = perf_event__process_exit,
2065 .fork = perf_event__process_fork,
2066 .attr = process_attr,
2067 .event_update = perf_event__process_event_update,
2068 .tracing_data = perf_event__process_tracing_data,
2069 .build_id = perf_event__process_build_id,
2070 .id_index = perf_event__process_id_index,
2071 .auxtrace_info = perf_event__process_auxtrace_info,
2072 .auxtrace = perf_event__process_auxtrace,
2073 .auxtrace_error = perf_event__process_auxtrace_error,
2074 .stat = perf_event__process_stat_event,
2075 .stat_round = process_stat_round_event,
2076 .stat_config = process_stat_config_event,
2077 .thread_map = process_thread_map_event,
2078 .cpu_map = process_cpu_map_event,
2079 .ordered_events = true,
2080 .ordering_requires_timestamps = true,
2081 },
2082 };
2083 struct perf_data_file file = {
2084 .mode = PERF_DATA_MODE_READ,
2085 };
2086 const struct option options[] = {
2087 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
2088 "dump raw trace in ASCII"),
2089 OPT_INCR('v', "verbose", &verbose,
2090 "be more verbose (show symbol address, etc)"),
2091 OPT_BOOLEAN('L', "Latency", &latency_format,
2092 "show latency attributes (irqs/preemption disabled, etc)"),
2093 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
2094 list_available_scripts),
2095 OPT_CALLBACK('s', "script", NULL, "name",
2096 "script file name (lang:script name, script name, or *)",
2097 parse_scriptname),
2098 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
2099 "generate perf-script.xx script in specified language"),
2100 OPT_STRING('i', "input", &input_name, "file", "input file name"),
2101 OPT_BOOLEAN('d', "debug-mode", &debug_mode,
2102 "do various checks like samples ordering and lost events"),
2103 OPT_BOOLEAN(0, "header", &header, "Show data header."),
2104 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."),
2105 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
2106 "file", "vmlinux pathname"),
2107 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
2108 "file", "kallsyms pathname"),
2109 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
2110 "When printing symbols do not display call chain"),
2111 OPT_CALLBACK(0, "symfs", NULL, "directory",
2112 "Look for files with symbols relative to this directory",
2113 symbol__config_symfs),
2114 OPT_CALLBACK('F', "fields", NULL, "str",
2115 "comma separated output fields prepend with 'type:'. "
2116 "Valid types: hw,sw,trace,raw. "
2117 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
2118 "addr,symoff,period,iregs,brstack,brstacksym,flags,"
2119 "callindent", parse_output_fields),
2120 OPT_BOOLEAN('a', "all-cpus", &system_wide,
2121 "system-wide collection from all CPUs"),
2122 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
2123 "only consider these symbols"),
2124 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
2125 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
2126 "only display events for these comms"),
2127 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
2128 "only consider symbols in these pids"),
2129 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
2130 "only consider symbols in these tids"),
2131 OPT_UINTEGER(0, "max-stack", &scripting_max_stack,
2132 "Set the maximum stack depth when parsing the callchain, "
2133 "anything beyond the specified depth will be ignored. "
2134 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
2135 OPT_BOOLEAN('I', "show-info", &show_full_info,
2136 "display extended information from perf.data file"),
2137 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
2138 "Show the path of [kernel.kallsyms]"),
2139 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events,
2140 "Show the fork/comm/exit events"),
2141 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
2142 "Show the mmap events"),
2143 OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events,
2144 "Show context switch events (if recorded)"),
2145 OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
2146 OPT_BOOLEAN(0, "ns", &nanosecs,
2147 "Use 9 decimal places when displaying time"),
2148 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
2149 "Instruction Tracing options",
2150 itrace_parse_synth_opts),
2151 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
2152 "Show full source file name path for source lines"),
2153 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
2154 "Enable symbol demangling"),
2155 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
2156 "Enable kernel symbol demangling"),
2157
2158 OPT_END()
2159 };
2160 const char * const script_subcommands[] = { "record", "report", NULL };
2161 const char *script_usage[] = {
2162 "perf script [<options>]",
2163 "perf script [<options>] record <script> [<record-options>] <command>",
2164 "perf script [<options>] report <script> [script-args]",
2165 "perf script [<options>] <script> [<record-options>] <command>",
2166 "perf script [<options>] <top-script> [script-args]",
2167 NULL
2168 };
2169
2170 setup_scripting();
2171
2172 argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
2173 PARSE_OPT_STOP_AT_NON_OPTION);
2174
2175 file.path = input_name;
2176
2177 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
2178 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
2179 if (!rec_script_path)
2180 return cmd_record(argc, argv, NULL);
2181 }
2182
2183 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
2184 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
2185 if (!rep_script_path) {
2186 fprintf(stderr,
2187 "Please specify a valid report script"
2188 "(see 'perf script -l' for listing)\n");
2189 return -1;
2190 }
2191 }
2192
2193 if (itrace_synth_opts.callchain &&
2194 itrace_synth_opts.callchain_sz > scripting_max_stack)
2195 scripting_max_stack = itrace_synth_opts.callchain_sz;
2196
2197 /* make sure PERF_EXEC_PATH is set for scripts */
2198 set_argv_exec_path(get_argv_exec_path());
2199
2200 if (argc && !script_name && !rec_script_path && !rep_script_path) {
2201 int live_pipe[2];
2202 int rep_args;
2203 pid_t pid;
2204
2205 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
2206 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
2207
2208 if (!rec_script_path && !rep_script_path) {
2209 usage_with_options_msg(script_usage, options,
2210 "Couldn't find script `%s'\n\n See perf"
2211 " script -l for available scripts.\n", argv[0]);
2212 }
2213
2214 if (is_top_script(argv[0])) {
2215 rep_args = argc - 1;
2216 } else {
2217 int rec_args;
2218
2219 rep_args = has_required_arg(rep_script_path);
2220 rec_args = (argc - 1) - rep_args;
2221 if (rec_args < 0) {
2222 usage_with_options_msg(script_usage, options,
2223 "`%s' script requires options."
2224 "\n\n See perf script -l for available "
2225 "scripts and options.\n", argv[0]);
2226 }
2227 }
2228
2229 if (pipe(live_pipe) < 0) {
2230 perror("failed to create pipe");
2231 return -1;
2232 }
2233
2234 pid = fork();
2235 if (pid < 0) {
2236 perror("failed to fork");
2237 return -1;
2238 }
2239
2240 if (!pid) {
2241 j = 0;
2242
2243 dup2(live_pipe[1], 1);
2244 close(live_pipe[0]);
2245
2246 if (is_top_script(argv[0])) {
2247 system_wide = true;
2248 } else if (!system_wide) {
2249 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
2250 err = -1;
2251 goto out;
2252 }
2253 }
2254
2255 __argv = malloc((argc + 6) * sizeof(const char *));
2256 if (!__argv) {
2257 pr_err("malloc failed\n");
2258 err = -ENOMEM;
2259 goto out;
2260 }
2261
2262 __argv[j++] = "/bin/sh";
2263 __argv[j++] = rec_script_path;
2264 if (system_wide)
2265 __argv[j++] = "-a";
2266 __argv[j++] = "-q";
2267 __argv[j++] = "-o";
2268 __argv[j++] = "-";
2269 for (i = rep_args + 1; i < argc; i++)
2270 __argv[j++] = argv[i];
2271 __argv[j++] = NULL;
2272
2273 execvp("/bin/sh", (char **)__argv);
2274 free(__argv);
2275 exit(-1);
2276 }
2277
2278 dup2(live_pipe[0], 0);
2279 close(live_pipe[1]);
2280
2281 __argv = malloc((argc + 4) * sizeof(const char *));
2282 if (!__argv) {
2283 pr_err("malloc failed\n");
2284 err = -ENOMEM;
2285 goto out;
2286 }
2287
2288 j = 0;
2289 __argv[j++] = "/bin/sh";
2290 __argv[j++] = rep_script_path;
2291 for (i = 1; i < rep_args + 1; i++)
2292 __argv[j++] = argv[i];
2293 __argv[j++] = "-i";
2294 __argv[j++] = "-";
2295 __argv[j++] = NULL;
2296
2297 execvp("/bin/sh", (char **)__argv);
2298 free(__argv);
2299 exit(-1);
2300 }
2301
2302 if (rec_script_path)
2303 script_path = rec_script_path;
2304 if (rep_script_path)
2305 script_path = rep_script_path;
2306
2307 if (script_path) {
2308 j = 0;
2309
2310 if (!rec_script_path)
2311 system_wide = false;
2312 else if (!system_wide) {
2313 if (have_cmd(argc - 1, &argv[1]) != 0) {
2314 err = -1;
2315 goto out;
2316 }
2317 }
2318
2319 __argv = malloc((argc + 2) * sizeof(const char *));
2320 if (!__argv) {
2321 pr_err("malloc failed\n");
2322 err = -ENOMEM;
2323 goto out;
2324 }
2325
2326 __argv[j++] = "/bin/sh";
2327 __argv[j++] = script_path;
2328 if (system_wide)
2329 __argv[j++] = "-a";
2330 for (i = 2; i < argc; i++)
2331 __argv[j++] = argv[i];
2332 __argv[j++] = NULL;
2333
2334 execvp("/bin/sh", (char **)__argv);
2335 free(__argv);
2336 exit(-1);
2337 }
2338
2339 if (!script_name)
2340 setup_pager();
2341
2342 session = perf_session__new(&file, false, &script.tool);
2343 if (session == NULL)
2344 return -1;
2345
2346 if (header || header_only) {
2347 perf_session__fprintf_info(session, stdout, show_full_info);
2348 if (header_only)
2349 goto out_delete;
2350 }
2351
2352 if (symbol__init(&session->header.env) < 0)
2353 goto out_delete;
2354
2355 script.session = session;
2356 script__setup_sample_type(&script);
2357
2358 if (output[PERF_TYPE_HARDWARE].fields & PERF_OUTPUT_CALLINDENT)
2359 itrace_synth_opts.thread_stack = true;
2360
2361 session->itrace_synth_opts = &itrace_synth_opts;
2362
2363 if (cpu_list) {
2364 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
2365 if (err < 0)
2366 goto out_delete;
2367 }
2368
2369 if (!no_callchain)
2370 symbol_conf.use_callchain = true;
2371 else
2372 symbol_conf.use_callchain = false;
2373
2374 if (session->tevent.pevent &&
2375 pevent_set_function_resolver(session->tevent.pevent,
2376 machine__resolve_kernel_addr,
2377 &session->machines.host) < 0) {
2378 pr_err("%s: failed to set libtraceevent function resolver\n", __func__);
2379 return -1;
2380 }
2381
2382 if (generate_script_lang) {
2383 struct stat perf_stat;
2384 int input;
2385
2386 if (output_set_by_user()) {
2387 fprintf(stderr,
2388 "custom fields not supported for generated scripts");
2389 err = -EINVAL;
2390 goto out_delete;
2391 }
2392
2393 input = open(file.path, O_RDONLY); /* input_name */
2394 if (input < 0) {
2395 err = -errno;
2396 perror("failed to open file");
2397 goto out_delete;
2398 }
2399
2400 err = fstat(input, &perf_stat);
2401 if (err < 0) {
2402 perror("failed to stat file");
2403 goto out_delete;
2404 }
2405
2406 if (!perf_stat.st_size) {
2407 fprintf(stderr, "zero-sized file, nothing to do!\n");
2408 goto out_delete;
2409 }
2410
2411 scripting_ops = script_spec__lookup(generate_script_lang);
2412 if (!scripting_ops) {
2413 fprintf(stderr, "invalid language specifier");
2414 err = -ENOENT;
2415 goto out_delete;
2416 }
2417
2418 err = scripting_ops->generate_script(session->tevent.pevent,
2419 "perf-script");
2420 goto out_delete;
2421 }
2422
2423 if (script_name) {
2424 err = scripting_ops->start_script(script_name, argc, argv);
2425 if (err)
2426 goto out_delete;
2427 pr_debug("perf script started with script %s\n\n", script_name);
2428 script_started = true;
2429 }
2430
2431
2432 err = perf_session__check_output_opt(session);
2433 if (err < 0)
2434 goto out_delete;
2435
2436 err = __cmd_script(&script);
2437
2438 flush_scripting();
2439
2440 out_delete:
2441 perf_evlist__free_stats(session->evlist);
2442 perf_session__delete(session);
2443
2444 if (script_started)
2445 cleanup_scripting();
2446 out:
2447 return err;
2448 }
Linux kernel - Deliverables
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