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
30static char const *script_name;
31static char const *generate_script_lang;
32static bool debug_mode;
33static u64 last_timestamp;
34static u64 nr_unordered;
35static bool no_callchain;
36static bool latency_format;
37static bool system_wide;
38static bool print_flags;
39static bool nanosecs;
40static const char *cpu_list;
41static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
42static struct perf_stat_config stat_config;
43
44unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH;
45
46enum 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
70struct 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
98static 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
164static 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
174static 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
190static 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
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
222static 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
230static 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
318static 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
341
342
343static 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
353
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 bool not_pipe = false;
375
376 evlist__for_each_entry(session->evlist, evsel) {
377 not_pipe = true;
378 if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) {
379 use_callchain = true;
380 break;
381 }
382 }
383 if (not_pipe && !use_callchain)
384 symbol_conf.use_callchain = false;
385 }
386
387
388
389
390
391 if (symbol_conf.use_callchain &&
392 !output[PERF_TYPE_TRACEPOINT].user_set) {
393 struct perf_event_attr *attr;
394
395 j = PERF_TYPE_TRACEPOINT;
396
397 evlist__for_each_entry(session->evlist, evsel) {
398 if (evsel->attr.type != j)
399 continue;
400
401 attr = &evsel->attr;
402
403 if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) {
404 output[j].fields |= PERF_OUTPUT_IP;
405 output[j].fields |= PERF_OUTPUT_SYM;
406 output[j].fields |= PERF_OUTPUT_DSO;
407 set_print_ip_opts(attr);
408 goto out;
409 }
410 }
411 }
412
413out:
414 return 0;
415}
416
417static void print_sample_iregs(struct perf_sample *sample,
418 struct perf_event_attr *attr)
419{
420 struct regs_dump *regs = &sample->intr_regs;
421 uint64_t mask = attr->sample_regs_intr;
422 unsigned i = 0, r;
423
424 if (!regs)
425 return;
426
427 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
428 u64 val = regs->regs[i++];
429 printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val);
430 }
431}
432
433static void print_sample_start(struct perf_sample *sample,
434 struct thread *thread,
435 struct perf_evsel *evsel)
436{
437 struct perf_event_attr *attr = &evsel->attr;
438 unsigned long secs;
439 unsigned long usecs;
440 unsigned long long nsecs;
441
442 if (PRINT_FIELD(COMM)) {
443 if (latency_format)
444 printf("%8.8s ", thread__comm_str(thread));
445 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
446 printf("%s ", thread__comm_str(thread));
447 else
448 printf("%16s ", thread__comm_str(thread));
449 }
450
451 if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
452 printf("%5d/%-5d ", sample->pid, sample->tid);
453 else if (PRINT_FIELD(PID))
454 printf("%5d ", sample->pid);
455 else if (PRINT_FIELD(TID))
456 printf("%5d ", sample->tid);
457
458 if (PRINT_FIELD(CPU)) {
459 if (latency_format)
460 printf("%3d ", sample->cpu);
461 else
462 printf("[%03d] ", sample->cpu);
463 }
464
465 if (PRINT_FIELD(TIME)) {
466 nsecs = sample->time;
467 secs = nsecs / NSECS_PER_SEC;
468 nsecs -= secs * NSECS_PER_SEC;
469 usecs = nsecs / NSECS_PER_USEC;
470 if (nanosecs)
471 printf("%5lu.%09llu: ", secs, nsecs);
472 else
473 printf("%5lu.%06lu: ", secs, usecs);
474 }
475}
476
477static inline char
478mispred_str(struct branch_entry *br)
479{
480 if (!(br->flags.mispred || br->flags.predicted))
481 return '-';
482
483 return br->flags.predicted ? 'P' : 'M';
484}
485
486static void print_sample_brstack(struct perf_sample *sample)
487{
488 struct branch_stack *br = sample->branch_stack;
489 u64 i;
490
491 if (!(br && br->nr))
492 return;
493
494 for (i = 0; i < br->nr; i++) {
495 printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ",
496 br->entries[i].from,
497 br->entries[i].to,
498 mispred_str( br->entries + i),
499 br->entries[i].flags.in_tx? 'X' : '-',
500 br->entries[i].flags.abort? 'A' : '-',
501 br->entries[i].flags.cycles);
502 }
503}
504
505static void print_sample_brstacksym(struct perf_sample *sample,
506 struct thread *thread)
507{
508 struct branch_stack *br = sample->branch_stack;
509 struct addr_location alf, alt;
510 u64 i, from, to;
511
512 if (!(br && br->nr))
513 return;
514
515 for (i = 0; i < br->nr; i++) {
516
517 memset(&alf, 0, sizeof(alf));
518 memset(&alt, 0, sizeof(alt));
519 from = br->entries[i].from;
520 to = br->entries[i].to;
521
522 thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, from, &alf);
523 if (alf.map)
524 alf.sym = map__find_symbol(alf.map, alf.addr, NULL);
525
526 thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
527 if (alt.map)
528 alt.sym = map__find_symbol(alt.map, alt.addr, NULL);
529
530 symbol__fprintf_symname_offs(alf.sym, &alf, stdout);
531 putchar('/');
532 symbol__fprintf_symname_offs(alt.sym, &alt, stdout);
533 printf("/%c/%c/%c/%d ",
534 mispred_str( br->entries + i),
535 br->entries[i].flags.in_tx? 'X' : '-',
536 br->entries[i].flags.abort? 'A' : '-',
537 br->entries[i].flags.cycles);
538 }
539}
540
541
542static void print_sample_addr(struct perf_sample *sample,
543 struct thread *thread,
544 struct perf_event_attr *attr)
545{
546 struct addr_location al;
547
548 printf("%16" PRIx64, sample->addr);
549
550 if (!sample_addr_correlates_sym(attr))
551 return;
552
553 thread__resolve(thread, &al, sample);
554
555 if (PRINT_FIELD(SYM)) {
556 printf(" ");
557 if (PRINT_FIELD(SYMOFFSET))
558 symbol__fprintf_symname_offs(al.sym, &al, stdout);
559 else
560 symbol__fprintf_symname(al.sym, stdout);
561 }
562
563 if (PRINT_FIELD(DSO)) {
564 printf(" (");
565 map__fprintf_dsoname(al.map, stdout);
566 printf(")");
567 }
568}
569
570static void print_sample_callindent(struct perf_sample *sample,
571 struct perf_evsel *evsel,
572 struct thread *thread,
573 struct addr_location *al)
574{
575 struct perf_event_attr *attr = &evsel->attr;
576 size_t depth = thread_stack__depth(thread);
577 struct addr_location addr_al;
578 const char *name = NULL;
579 static int spacing;
580 int len = 0;
581 u64 ip = 0;
582
583
584
585
586
587 if (thread->ts && sample->flags & PERF_IP_FLAG_RETURN)
588 depth += 1;
589
590 if (sample->flags & (PERF_IP_FLAG_CALL | PERF_IP_FLAG_TRACE_BEGIN)) {
591 if (sample_addr_correlates_sym(attr)) {
592 thread__resolve(thread, &addr_al, sample);
593 if (addr_al.sym)
594 name = addr_al.sym->name;
595 else
596 ip = sample->addr;
597 } else {
598 ip = sample->addr;
599 }
600 } else if (sample->flags & (PERF_IP_FLAG_RETURN | PERF_IP_FLAG_TRACE_END)) {
601 if (al->sym)
602 name = al->sym->name;
603 else
604 ip = sample->ip;
605 }
606
607 if (name)
608 len = printf("%*s%s", (int)depth * 4, "", name);
609 else if (ip)
610 len = printf("%*s%16" PRIx64, (int)depth * 4, "", ip);
611
612 if (len < 0)
613 return;
614
615
616
617
618
619 if (len > spacing || (len && len < spacing - 52))
620 spacing = round_up(len + 4, 32);
621
622 if (len < spacing)
623 printf("%*s", spacing - len, "");
624}
625
626static void print_sample_bts(struct perf_sample *sample,
627 struct perf_evsel *evsel,
628 struct thread *thread,
629 struct addr_location *al)
630{
631 struct perf_event_attr *attr = &evsel->attr;
632 bool print_srcline_last = false;
633
634 if (PRINT_FIELD(CALLINDENT))
635 print_sample_callindent(sample, evsel, thread, al);
636
637
638 if (PRINT_FIELD(IP)) {
639 unsigned int print_opts = output[attr->type].print_ip_opts;
640 struct callchain_cursor *cursor = NULL;
641
642 if (symbol_conf.use_callchain && sample->callchain &&
643 thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
644 sample, NULL, NULL, scripting_max_stack) == 0)
645 cursor = &callchain_cursor;
646
647 if (cursor == NULL) {
648 putchar(' ');
649 if (print_opts & EVSEL__PRINT_SRCLINE) {
650 print_srcline_last = true;
651 print_opts &= ~EVSEL__PRINT_SRCLINE;
652 }
653 } else
654 putchar('\n');
655
656 sample__fprintf_sym(sample, al, 0, print_opts, cursor, stdout);
657 }
658
659
660 if (PRINT_FIELD(ADDR) ||
661 ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
662 !output[attr->type].user_set)) {
663 printf(" => ");
664 print_sample_addr(sample, thread, attr);
665 }
666
667 if (print_srcline_last)
668 map__fprintf_srcline(al->map, al->addr, "\n ", stdout);
669
670 printf("\n");
671}
672
673static struct {
674 u32 flags;
675 const char *name;
676} sample_flags[] = {
677 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL, "call"},
678 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN, "return"},
679 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL, "jcc"},
680 {PERF_IP_FLAG_BRANCH, "jmp"},
681 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_INTERRUPT, "int"},
682 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_INTERRUPT, "iret"},
683 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_SYSCALLRET, "syscall"},
684 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_SYSCALLRET, "sysret"},
685 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_ASYNC, "async"},
686 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC | PERF_IP_FLAG_INTERRUPT, "hw int"},
687 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT, "tx abrt"},
688 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_BEGIN, "tr strt"},
689 {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_END, "tr end"},
690 {0, NULL}
691};
692
693static void print_sample_flags(u32 flags)
694{
695 const char *chars = PERF_IP_FLAG_CHARS;
696 const int n = strlen(PERF_IP_FLAG_CHARS);
697 bool in_tx = flags & PERF_IP_FLAG_IN_TX;
698 const char *name = NULL;
699 char str[33];
700 int i, pos = 0;
701
702 for (i = 0; sample_flags[i].name ; i++) {
703 if (sample_flags[i].flags == (flags & ~PERF_IP_FLAG_IN_TX)) {
704 name = sample_flags[i].name;
705 break;
706 }
707 }
708
709 for (i = 0; i < n; i++, flags >>= 1) {
710 if (flags & 1)
711 str[pos++] = chars[i];
712 }
713 for (; i < 32; i++, flags >>= 1) {
714 if (flags & 1)
715 str[pos++] = '?';
716 }
717 str[pos] = 0;
718
719 if (name)
720 printf(" %-7s%4s ", name, in_tx ? "(x)" : "");
721 else
722 printf(" %-11s ", str);
723}
724
725struct printer_data {
726 int line_no;
727 bool hit_nul;
728 bool is_printable;
729};
730
731static void
732print_sample_bpf_output_printer(enum binary_printer_ops op,
733 unsigned int val,
734 void *extra)
735{
736 unsigned char ch = (unsigned char)val;
737 struct printer_data *printer_data = extra;
738
739 switch (op) {
740 case BINARY_PRINT_DATA_BEGIN:
741 printf("\n");
742 break;
743 case BINARY_PRINT_LINE_BEGIN:
744 printf("%17s", !printer_data->line_no ? "BPF output:" :
745 " ");
746 break;
747 case BINARY_PRINT_ADDR:
748 printf(" %04x:", val);
749 break;
750 case BINARY_PRINT_NUM_DATA:
751 printf(" %02x", val);
752 break;
753 case BINARY_PRINT_NUM_PAD:
754 printf(" ");
755 break;
756 case BINARY_PRINT_SEP:
757 printf(" ");
758 break;
759 case BINARY_PRINT_CHAR_DATA:
760 if (printer_data->hit_nul && ch)
761 printer_data->is_printable = false;
762
763 if (!isprint(ch)) {
764 printf("%c", '.');
765
766 if (!printer_data->is_printable)
767 break;
768
769 if (ch == '\0')
770 printer_data->hit_nul = true;
771 else
772 printer_data->is_printable = false;
773 } else {
774 printf("%c", ch);
775 }
776 break;
777 case BINARY_PRINT_CHAR_PAD:
778 printf(" ");
779 break;
780 case BINARY_PRINT_LINE_END:
781 printf("\n");
782 printer_data->line_no++;
783 break;
784 case BINARY_PRINT_DATA_END:
785 default:
786 break;
787 }
788}
789
790static void print_sample_bpf_output(struct perf_sample *sample)
791{
792 unsigned int nr_bytes = sample->raw_size;
793 struct printer_data printer_data = {0, false, true};
794
795 print_binary(sample->raw_data, nr_bytes, 8,
796 print_sample_bpf_output_printer, &printer_data);
797
798 if (printer_data.is_printable && printer_data.hit_nul)
799 printf("%17s \"%s\"\n", "BPF string:",
800 (char *)(sample->raw_data));
801}
802
803struct perf_script {
804 struct perf_tool tool;
805 struct perf_session *session;
806 bool show_task_events;
807 bool show_mmap_events;
808 bool show_switch_events;
809 bool allocated;
810 struct cpu_map *cpus;
811 struct thread_map *threads;
812 int name_width;
813};
814
815static int perf_evlist__max_name_len(struct perf_evlist *evlist)
816{
817 struct perf_evsel *evsel;
818 int max = 0;
819
820 evlist__for_each_entry(evlist, evsel) {
821 int len = strlen(perf_evsel__name(evsel));
822
823 max = MAX(len, max);
824 }
825
826 return max;
827}
828
829static size_t data_src__printf(u64 data_src)
830{
831 struct mem_info mi = { .data_src.val = data_src };
832 char decode[100];
833 char out[100];
834 static int maxlen;
835 int len;
836
837 perf_script__meminfo_scnprintf(decode, 100, &mi);
838
839 len = scnprintf(out, 100, "%16" PRIx64 " %s", data_src, decode);
840 if (maxlen < len)
841 maxlen = len;
842
843 return printf("%-*s", maxlen, out);
844}
845
846static void process_event(struct perf_script *script,
847 struct perf_sample *sample, struct perf_evsel *evsel,
848 struct addr_location *al)
849{
850 struct thread *thread = al->thread;
851 struct perf_event_attr *attr = &evsel->attr;
852
853 if (output[attr->type].fields == 0)
854 return;
855
856 print_sample_start(sample, thread, evsel);
857
858 if (PRINT_FIELD(PERIOD))
859 printf("%10" PRIu64 " ", sample->period);
860
861 if (PRINT_FIELD(EVNAME)) {
862 const char *evname = perf_evsel__name(evsel);
863
864 if (!script->name_width)
865 script->name_width = perf_evlist__max_name_len(script->session->evlist);
866
867 printf("%*s: ", script->name_width,
868 evname ? evname : "[unknown]");
869 }
870
871 if (print_flags)
872 print_sample_flags(sample->flags);
873
874 if (is_bts_event(attr)) {
875 print_sample_bts(sample, evsel, thread, al);
876 return;
877 }
878
879 if (PRINT_FIELD(TRACE))
880 event_format__print(evsel->tp_format, sample->cpu,
881 sample->raw_data, sample->raw_size);
882 if (PRINT_FIELD(ADDR))
883 print_sample_addr(sample, thread, attr);
884
885 if (PRINT_FIELD(DATA_SRC))
886 data_src__printf(sample->data_src);
887
888 if (PRINT_FIELD(WEIGHT))
889 printf("%16" PRIu64, sample->weight);
890
891 if (PRINT_FIELD(IP)) {
892 struct callchain_cursor *cursor = NULL;
893
894 if (symbol_conf.use_callchain && sample->callchain &&
895 thread__resolve_callchain(al->thread, &callchain_cursor, evsel,
896 sample, NULL, NULL, scripting_max_stack) == 0)
897 cursor = &callchain_cursor;
898
899 putchar(cursor ? '\n' : ' ');
900 sample__fprintf_sym(sample, al, 0, output[attr->type].print_ip_opts, cursor, stdout);
901 }
902
903 if (PRINT_FIELD(IREGS))
904 print_sample_iregs(sample, attr);
905
906 if (PRINT_FIELD(BRSTACK))
907 print_sample_brstack(sample);
908 else if (PRINT_FIELD(BRSTACKSYM))
909 print_sample_brstacksym(sample, thread);
910
911 if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
912 print_sample_bpf_output(sample);
913
914 printf("\n");
915}
916
917static struct scripting_ops *scripting_ops;
918
919static void __process_stat(struct perf_evsel *counter, u64 tstamp)
920{
921 int nthreads = thread_map__nr(counter->threads);
922 int ncpus = perf_evsel__nr_cpus(counter);
923 int cpu, thread;
924 static int header_printed;
925
926 if (counter->system_wide)
927 nthreads = 1;
928
929 if (!header_printed) {
930 printf("%3s %8s %15s %15s %15s %15s %s\n",
931 "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT");
932 header_printed = 1;
933 }
934
935 for (thread = 0; thread < nthreads; thread++) {
936 for (cpu = 0; cpu < ncpus; cpu++) {
937 struct perf_counts_values *counts;
938
939 counts = perf_counts(counter->counts, cpu, thread);
940
941 printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n",
942 counter->cpus->map[cpu],
943 thread_map__pid(counter->threads, thread),
944 counts->val,
945 counts->ena,
946 counts->run,
947 tstamp,
948 perf_evsel__name(counter));
949 }
950 }
951}
952
953static void process_stat(struct perf_evsel *counter, u64 tstamp)
954{
955 if (scripting_ops && scripting_ops->process_stat)
956 scripting_ops->process_stat(&stat_config, counter, tstamp);
957 else
958 __process_stat(counter, tstamp);
959}
960
961static void process_stat_interval(u64 tstamp)
962{
963 if (scripting_ops && scripting_ops->process_stat_interval)
964 scripting_ops->process_stat_interval(tstamp);
965}
966
967static void setup_scripting(void)
968{
969 setup_perl_scripting();
970 setup_python_scripting();
971}
972
973static int flush_scripting(void)
974{
975 return scripting_ops ? scripting_ops->flush_script() : 0;
976}
977
978static int cleanup_scripting(void)
979{
980 pr_debug("\nperf script stopped\n");
981
982 return scripting_ops ? scripting_ops->stop_script() : 0;
983}
984
985static int process_sample_event(struct perf_tool *tool,
986 union perf_event *event,
987 struct perf_sample *sample,
988 struct perf_evsel *evsel,
989 struct machine *machine)
990{
991 struct perf_script *scr = container_of(tool, struct perf_script, tool);
992 struct addr_location al;
993
994 if (debug_mode) {
995 if (sample->time < last_timestamp) {
996 pr_err("Samples misordered, previous: %" PRIu64
997 " this: %" PRIu64 "\n", last_timestamp,
998 sample->time);
999 nr_unordered++;
1000 }
1001 last_timestamp = sample->time;
1002 return 0;
1003 }
1004
1005 if (machine__resolve(machine, &al, sample) < 0) {
1006 pr_err("problem processing %d event, skipping it.\n",
1007 event->header.type);
1008 return -1;
1009 }
1010
1011 if (al.filtered)
1012 goto out_put;
1013
1014 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
1015 goto out_put;
1016
1017 if (scripting_ops)
1018 scripting_ops->process_event(event, sample, evsel, &al);
1019 else
1020 process_event(scr, sample, evsel, &al);
1021
1022out_put:
1023 addr_location__put(&al);
1024 return 0;
1025}
1026
1027static int process_attr(struct perf_tool *tool, union perf_event *event,
1028 struct perf_evlist **pevlist)
1029{
1030 struct perf_script *scr = container_of(tool, struct perf_script, tool);
1031 struct perf_evlist *evlist;
1032 struct perf_evsel *evsel, *pos;
1033 int err;
1034
1035 err = perf_event__process_attr(tool, event, pevlist);
1036 if (err)
1037 return err;
1038
1039 evlist = *pevlist;
1040 evsel = perf_evlist__last(*pevlist);
1041
1042 if (evsel->attr.type >= PERF_TYPE_MAX)
1043 return 0;
1044
1045 evlist__for_each_entry(evlist, pos) {
1046 if (pos->attr.type == evsel->attr.type && pos != evsel)
1047 return 0;
1048 }
1049
1050 set_print_ip_opts(&evsel->attr);
1051
1052 if (evsel->attr.sample_type)
1053 err = perf_evsel__check_attr(evsel, scr->session);
1054
1055 return err;
1056}
1057
1058static int process_comm_event(struct perf_tool *tool,
1059 union perf_event *event,
1060 struct perf_sample *sample,
1061 struct machine *machine)
1062{
1063 struct thread *thread;
1064 struct perf_script *script = container_of(tool, struct perf_script, tool);
1065 struct perf_session *session = script->session;
1066 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1067 int ret = -1;
1068
1069 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
1070 if (thread == NULL) {
1071 pr_debug("problem processing COMM event, skipping it.\n");
1072 return -1;
1073 }
1074
1075 if (perf_event__process_comm(tool, event, sample, machine) < 0)
1076 goto out;
1077
1078 if (!evsel->attr.sample_id_all) {
1079 sample->cpu = 0;
1080 sample->time = 0;
1081 sample->tid = event->comm.tid;
1082 sample->pid = event->comm.pid;
1083 }
1084 print_sample_start(sample, thread, evsel);
1085 perf_event__fprintf(event, stdout);
1086 ret = 0;
1087out:
1088 thread__put(thread);
1089 return ret;
1090}
1091
1092static int process_fork_event(struct perf_tool *tool,
1093 union perf_event *event,
1094 struct perf_sample *sample,
1095 struct machine *machine)
1096{
1097 struct thread *thread;
1098 struct perf_script *script = container_of(tool, struct perf_script, tool);
1099 struct perf_session *session = script->session;
1100 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1101
1102 if (perf_event__process_fork(tool, event, sample, machine) < 0)
1103 return -1;
1104
1105 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
1106 if (thread == NULL) {
1107 pr_debug("problem processing FORK event, skipping it.\n");
1108 return -1;
1109 }
1110
1111 if (!evsel->attr.sample_id_all) {
1112 sample->cpu = 0;
1113 sample->time = event->fork.time;
1114 sample->tid = event->fork.tid;
1115 sample->pid = event->fork.pid;
1116 }
1117 print_sample_start(sample, thread, evsel);
1118 perf_event__fprintf(event, stdout);
1119 thread__put(thread);
1120
1121 return 0;
1122}
1123static int process_exit_event(struct perf_tool *tool,
1124 union perf_event *event,
1125 struct perf_sample *sample,
1126 struct machine *machine)
1127{
1128 int err = 0;
1129 struct thread *thread;
1130 struct perf_script *script = container_of(tool, struct perf_script, tool);
1131 struct perf_session *session = script->session;
1132 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1133
1134 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
1135 if (thread == NULL) {
1136 pr_debug("problem processing EXIT event, skipping it.\n");
1137 return -1;
1138 }
1139
1140 if (!evsel->attr.sample_id_all) {
1141 sample->cpu = 0;
1142 sample->time = 0;
1143 sample->tid = event->fork.tid;
1144 sample->pid = event->fork.pid;
1145 }
1146 print_sample_start(sample, thread, evsel);
1147 perf_event__fprintf(event, stdout);
1148
1149 if (perf_event__process_exit(tool, event, sample, machine) < 0)
1150 err = -1;
1151
1152 thread__put(thread);
1153 return err;
1154}
1155
1156static int process_mmap_event(struct perf_tool *tool,
1157 union perf_event *event,
1158 struct perf_sample *sample,
1159 struct machine *machine)
1160{
1161 struct thread *thread;
1162 struct perf_script *script = container_of(tool, struct perf_script, tool);
1163 struct perf_session *session = script->session;
1164 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1165
1166 if (perf_event__process_mmap(tool, event, sample, machine) < 0)
1167 return -1;
1168
1169 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid);
1170 if (thread == NULL) {
1171 pr_debug("problem processing MMAP event, skipping it.\n");
1172 return -1;
1173 }
1174
1175 if (!evsel->attr.sample_id_all) {
1176 sample->cpu = 0;
1177 sample->time = 0;
1178 sample->tid = event->mmap.tid;
1179 sample->pid = event->mmap.pid;
1180 }
1181 print_sample_start(sample, thread, evsel);
1182 perf_event__fprintf(event, stdout);
1183 thread__put(thread);
1184 return 0;
1185}
1186
1187static int process_mmap2_event(struct perf_tool *tool,
1188 union perf_event *event,
1189 struct perf_sample *sample,
1190 struct machine *machine)
1191{
1192 struct thread *thread;
1193 struct perf_script *script = container_of(tool, struct perf_script, tool);
1194 struct perf_session *session = script->session;
1195 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1196
1197 if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
1198 return -1;
1199
1200 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid);
1201 if (thread == NULL) {
1202 pr_debug("problem processing MMAP2 event, skipping it.\n");
1203 return -1;
1204 }
1205
1206 if (!evsel->attr.sample_id_all) {
1207 sample->cpu = 0;
1208 sample->time = 0;
1209 sample->tid = event->mmap2.tid;
1210 sample->pid = event->mmap2.pid;
1211 }
1212 print_sample_start(sample, thread, evsel);
1213 perf_event__fprintf(event, stdout);
1214 thread__put(thread);
1215 return 0;
1216}
1217
1218static int process_switch_event(struct perf_tool *tool,
1219 union perf_event *event,
1220 struct perf_sample *sample,
1221 struct machine *machine)
1222{
1223 struct thread *thread;
1224 struct perf_script *script = container_of(tool, struct perf_script, tool);
1225 struct perf_session *session = script->session;
1226 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
1227
1228 if (perf_event__process_switch(tool, event, sample, machine) < 0)
1229 return -1;
1230
1231 thread = machine__findnew_thread(machine, sample->pid,
1232 sample->tid);
1233 if (thread == NULL) {
1234 pr_debug("problem processing SWITCH event, skipping it.\n");
1235 return -1;
1236 }
1237
1238 print_sample_start(sample, thread, evsel);
1239 perf_event__fprintf(event, stdout);
1240 thread__put(thread);
1241 return 0;
1242}
1243
1244static void sig_handler(int sig __maybe_unused)
1245{
1246 session_done = 1;
1247}
1248
1249static int __cmd_script(struct perf_script *script)
1250{
1251 int ret;
1252
1253 signal(SIGINT, sig_handler);
1254
1255
1256 if (script->show_task_events) {
1257 script->tool.comm = process_comm_event;
1258 script->tool.fork = process_fork_event;
1259 script->tool.exit = process_exit_event;
1260 }
1261 if (script->show_mmap_events) {
1262 script->tool.mmap = process_mmap_event;
1263 script->tool.mmap2 = process_mmap2_event;
1264 }
1265 if (script->show_switch_events)
1266 script->tool.context_switch = process_switch_event;
1267
1268 ret = perf_session__process_events(script->session);
1269
1270 if (debug_mode)
1271 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
1272
1273 return ret;
1274}
1275
1276struct script_spec {
1277 struct list_head node;
1278 struct scripting_ops *ops;
1279 char spec[0];
1280};
1281
1282static LIST_HEAD(script_specs);
1283
1284static struct script_spec *script_spec__new(const char *spec,
1285 struct scripting_ops *ops)
1286{
1287 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
1288
1289 if (s != NULL) {
1290 strcpy(s->spec, spec);
1291 s->ops = ops;
1292 }
1293
1294 return s;
1295}
1296
1297static void script_spec__add(struct script_spec *s)
1298{
1299 list_add_tail(&s->node, &script_specs);
1300}
1301
1302static struct script_spec *script_spec__find(const char *spec)
1303{
1304 struct script_spec *s;
1305
1306 list_for_each_entry(s, &script_specs, node)
1307 if (strcasecmp(s->spec, spec) == 0)
1308 return s;
1309 return NULL;
1310}
1311
1312int script_spec_register(const char *spec, struct scripting_ops *ops)
1313{
1314 struct script_spec *s;
1315
1316 s = script_spec__find(spec);
1317 if (s)
1318 return -1;
1319
1320 s = script_spec__new(spec, ops);
1321 if (!s)
1322 return -1;
1323 else
1324 script_spec__add(s);
1325
1326 return 0;
1327}
1328
1329static struct scripting_ops *script_spec__lookup(const char *spec)
1330{
1331 struct script_spec *s = script_spec__find(spec);
1332 if (!s)
1333 return NULL;
1334
1335 return s->ops;
1336}
1337
1338static void list_available_languages(void)
1339{
1340 struct script_spec *s;
1341
1342 fprintf(stderr, "\n");
1343 fprintf(stderr, "Scripting language extensions (used in "
1344 "perf script -s [spec:]script.[spec]):\n\n");
1345
1346 list_for_each_entry(s, &script_specs, node)
1347 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
1348
1349 fprintf(stderr, "\n");
1350}
1351
1352static int parse_scriptname(const struct option *opt __maybe_unused,
1353 const char *str, int unset __maybe_unused)
1354{
1355 char spec[PATH_MAX];
1356 const char *script, *ext;
1357 int len;
1358
1359 if (strcmp(str, "lang") == 0) {
1360 list_available_languages();
1361 exit(0);
1362 }
1363
1364 script = strchr(str, ':');
1365 if (script) {
1366 len = script - str;
1367 if (len >= PATH_MAX) {
1368 fprintf(stderr, "invalid language specifier");
1369 return -1;
1370 }
1371 strncpy(spec, str, len);
1372 spec[len] = '\0';
1373 scripting_ops = script_spec__lookup(spec);
1374 if (!scripting_ops) {
1375 fprintf(stderr, "invalid language specifier");
1376 return -1;
1377 }
1378 script++;
1379 } else {
1380 script = str;
1381 ext = strrchr(script, '.');
1382 if (!ext) {
1383 fprintf(stderr, "invalid script extension");
1384 return -1;
1385 }
1386 scripting_ops = script_spec__lookup(++ext);
1387 if (!scripting_ops) {
1388 fprintf(stderr, "invalid script extension");
1389 return -1;
1390 }
1391 }
1392
1393 script_name = strdup(script);
1394
1395 return 0;
1396}
1397
1398static int parse_output_fields(const struct option *opt __maybe_unused,
1399 const char *arg, int unset __maybe_unused)
1400{
1401 char *tok;
1402 int i, imax = ARRAY_SIZE(all_output_options);
1403 int j;
1404 int rc = 0;
1405 char *str = strdup(arg);
1406 int type = -1;
1407
1408 if (!str)
1409 return -ENOMEM;
1410
1411
1412
1413
1414
1415 tok = strchr(str, ':');
1416 if (tok) {
1417 *tok = '\0';
1418 tok++;
1419 if (!strcmp(str, "hw"))
1420 type = PERF_TYPE_HARDWARE;
1421 else if (!strcmp(str, "sw"))
1422 type = PERF_TYPE_SOFTWARE;
1423 else if (!strcmp(str, "trace"))
1424 type = PERF_TYPE_TRACEPOINT;
1425 else if (!strcmp(str, "raw"))
1426 type = PERF_TYPE_RAW;
1427 else if (!strcmp(str, "break"))
1428 type = PERF_TYPE_BREAKPOINT;
1429 else {
1430 fprintf(stderr, "Invalid event type in field string.\n");
1431 rc = -EINVAL;
1432 goto out;
1433 }
1434
1435 if (output[type].user_set)
1436 pr_warning("Overriding previous field request for %s events.\n",
1437 event_type(type));
1438
1439 output[type].fields = 0;
1440 output[type].user_set = true;
1441 output[type].wildcard_set = false;
1442
1443 } else {
1444 tok = str;
1445 if (strlen(str) == 0) {
1446 fprintf(stderr,
1447 "Cannot set fields to 'none' for all event types.\n");
1448 rc = -EINVAL;
1449 goto out;
1450 }
1451
1452 if (output_set_by_user())
1453 pr_warning("Overriding previous field request for all events.\n");
1454
1455 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1456 output[j].fields = 0;
1457 output[j].user_set = true;
1458 output[j].wildcard_set = true;
1459 }
1460 }
1461
1462 for (tok = strtok(tok, ","); tok; tok = strtok(NULL, ",")) {
1463 for (i = 0; i < imax; ++i) {
1464 if (strcmp(tok, all_output_options[i].str) == 0)
1465 break;
1466 }
1467 if (i == imax && strcmp(tok, "flags") == 0) {
1468 print_flags = true;
1469 continue;
1470 }
1471 if (i == imax) {
1472 fprintf(stderr, "Invalid field requested.\n");
1473 rc = -EINVAL;
1474 goto out;
1475 }
1476
1477 if (type == -1) {
1478
1479
1480
1481 for (j = 0; j < PERF_TYPE_MAX; ++j) {
1482 if (output[j].invalid_fields & all_output_options[i].field) {
1483 pr_warning("\'%s\' not valid for %s events. Ignoring.\n",
1484 all_output_options[i].str, event_type(j));
1485 } else
1486 output[j].fields |= all_output_options[i].field;
1487 }
1488 } else {
1489 if (output[type].invalid_fields & all_output_options[i].field) {
1490 fprintf(stderr, "\'%s\' not valid for %s events.\n",
1491 all_output_options[i].str, event_type(type));
1492
1493 rc = -EINVAL;
1494 goto out;
1495 }
1496 output[type].fields |= all_output_options[i].field;
1497 }
1498 }
1499
1500 if (type >= 0) {
1501 if (output[type].fields == 0) {
1502 pr_debug("No fields requested for %s type. "
1503 "Events will not be displayed.\n", event_type(type));
1504 }
1505 }
1506
1507out:
1508 free(str);
1509 return rc;
1510}
1511
1512
1513static int is_directory(const char *base_path, const struct dirent *dent)
1514{
1515 char path[PATH_MAX];
1516 struct stat st;
1517
1518 sprintf(path, "%s/%s", base_path, dent->d_name);
1519 if (stat(path, &st))
1520 return 0;
1521
1522 return S_ISDIR(st.st_mode);
1523}
1524
1525#define for_each_lang(scripts_path, scripts_dir, lang_dirent) \
1526 while ((lang_dirent = readdir(scripts_dir)) != NULL) \
1527 if ((lang_dirent->d_type == DT_DIR || \
1528 (lang_dirent->d_type == DT_UNKNOWN && \
1529 is_directory(scripts_path, lang_dirent))) && \
1530 (strcmp(lang_dirent->d_name, ".")) && \
1531 (strcmp(lang_dirent->d_name, "..")))
1532
1533#define for_each_script(lang_path, lang_dir, script_dirent) \
1534 while ((script_dirent = readdir(lang_dir)) != NULL) \
1535 if (script_dirent->d_type != DT_DIR && \
1536 (script_dirent->d_type != DT_UNKNOWN || \
1537 !is_directory(lang_path, script_dirent)))
1538
1539
1540#define RECORD_SUFFIX "-record"
1541#define REPORT_SUFFIX "-report"
1542
1543struct script_desc {
1544 struct list_head node;
1545 char *name;
1546 char *half_liner;
1547 char *args;
1548};
1549
1550static LIST_HEAD(script_descs);
1551
1552static struct script_desc *script_desc__new(const char *name)
1553{
1554 struct script_desc *s = zalloc(sizeof(*s));
1555
1556 if (s != NULL && name)
1557 s->name = strdup(name);
1558
1559 return s;
1560}
1561
1562static void script_desc__delete(struct script_desc *s)
1563{
1564 zfree(&s->name);
1565 zfree(&s->half_liner);
1566 zfree(&s->args);
1567 free(s);
1568}
1569
1570static void script_desc__add(struct script_desc *s)
1571{
1572 list_add_tail(&s->node, &script_descs);
1573}
1574
1575static struct script_desc *script_desc__find(const char *name)
1576{
1577 struct script_desc *s;
1578
1579 list_for_each_entry(s, &script_descs, node)
1580 if (strcasecmp(s->name, name) == 0)
1581 return s;
1582 return NULL;
1583}
1584
1585static struct script_desc *script_desc__findnew(const char *name)
1586{
1587 struct script_desc *s = script_desc__find(name);
1588
1589 if (s)
1590 return s;
1591
1592 s = script_desc__new(name);
1593 if (!s)
1594 goto out_delete_desc;
1595
1596 script_desc__add(s);
1597
1598 return s;
1599
1600out_delete_desc:
1601 script_desc__delete(s);
1602
1603 return NULL;
1604}
1605
1606static const char *ends_with(const char *str, const char *suffix)
1607{
1608 size_t suffix_len = strlen(suffix);
1609 const char *p = str;
1610
1611 if (strlen(str) > suffix_len) {
1612 p = str + strlen(str) - suffix_len;
1613 if (!strncmp(p, suffix, suffix_len))
1614 return p;
1615 }
1616
1617 return NULL;
1618}
1619
1620static int read_script_info(struct script_desc *desc, const char *filename)
1621{
1622 char line[BUFSIZ], *p;
1623 FILE *fp;
1624
1625 fp = fopen(filename, "r");
1626 if (!fp)
1627 return -1;
1628
1629 while (fgets(line, sizeof(line), fp)) {
1630 p = ltrim(line);
1631 if (strlen(p) == 0)
1632 continue;
1633 if (*p != '#')
1634 continue;
1635 p++;
1636 if (strlen(p) && *p == '!')
1637 continue;
1638
1639 p = ltrim(p);
1640 if (strlen(p) && p[strlen(p) - 1] == '\n')
1641 p[strlen(p) - 1] = '\0';
1642
1643 if (!strncmp(p, "description:", strlen("description:"))) {
1644 p += strlen("description:");
1645 desc->half_liner = strdup(ltrim(p));
1646 continue;
1647 }
1648
1649 if (!strncmp(p, "args:", strlen("args:"))) {
1650 p += strlen("args:");
1651 desc->args = strdup(ltrim(p));
1652 continue;
1653 }
1654 }
1655
1656 fclose(fp);
1657
1658 return 0;
1659}
1660
1661static char *get_script_root(struct dirent *script_dirent, const char *suffix)
1662{
1663 char *script_root, *str;
1664
1665 script_root = strdup(script_dirent->d_name);
1666 if (!script_root)
1667 return NULL;
1668
1669 str = (char *)ends_with(script_root, suffix);
1670 if (!str) {
1671 free(script_root);
1672 return NULL;
1673 }
1674
1675 *str = '\0';
1676 return script_root;
1677}
1678
1679static int list_available_scripts(const struct option *opt __maybe_unused,
1680 const char *s __maybe_unused,
1681 int unset __maybe_unused)
1682{
1683 struct dirent *script_dirent, *lang_dirent;
1684 char scripts_path[MAXPATHLEN];
1685 DIR *scripts_dir, *lang_dir;
1686 char script_path[MAXPATHLEN];
1687 char lang_path[MAXPATHLEN];
1688 struct script_desc *desc;
1689 char first_half[BUFSIZ];
1690 char *script_root;
1691
1692 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1693
1694 scripts_dir = opendir(scripts_path);
1695 if (!scripts_dir) {
1696 fprintf(stdout,
1697 "open(%s) failed.\n"
1698 "Check \"PERF_EXEC_PATH\" env to set scripts dir.\n",
1699 scripts_path);
1700 exit(-1);
1701 }
1702
1703 for_each_lang(scripts_path, scripts_dir, lang_dirent) {
1704 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1705 lang_dirent->d_name);
1706 lang_dir = opendir(lang_path);
1707 if (!lang_dir)
1708 continue;
1709
1710 for_each_script(lang_path, lang_dir, script_dirent) {
1711 script_root = get_script_root(script_dirent, REPORT_SUFFIX);
1712 if (script_root) {
1713 desc = script_desc__findnew(script_root);
1714 snprintf(script_path, MAXPATHLEN, "%s/%s",
1715 lang_path, script_dirent->d_name);
1716 read_script_info(desc, script_path);
1717 free(script_root);
1718 }
1719 }
1720 }
1721
1722 fprintf(stdout, "List of available trace scripts:\n");
1723 list_for_each_entry(desc, &script_descs, node) {
1724 sprintf(first_half, "%s %s", desc->name,
1725 desc->args ? desc->args : "");
1726 fprintf(stdout, " %-36s %s\n", first_half,
1727 desc->half_liner ? desc->half_liner : "");
1728 }
1729
1730 exit(0);
1731}
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742static int check_ev_match(char *dir_name, char *scriptname,
1743 struct perf_session *session)
1744{
1745 char filename[MAXPATHLEN], evname[128];
1746 char line[BUFSIZ], *p;
1747 struct perf_evsel *pos;
1748 int match, len;
1749 FILE *fp;
1750
1751 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname);
1752
1753 fp = fopen(filename, "r");
1754 if (!fp)
1755 return -1;
1756
1757 while (fgets(line, sizeof(line), fp)) {
1758 p = ltrim(line);
1759 if (*p == '#')
1760 continue;
1761
1762 while (strlen(p)) {
1763 p = strstr(p, "-e");
1764 if (!p)
1765 break;
1766
1767 p += 2;
1768 p = ltrim(p);
1769 len = strcspn(p, " \t");
1770 if (!len)
1771 break;
1772
1773 snprintf(evname, len + 1, "%s", p);
1774
1775 match = 0;
1776 evlist__for_each_entry(session->evlist, pos) {
1777 if (!strcmp(perf_evsel__name(pos), evname)) {
1778 match = 1;
1779 break;
1780 }
1781 }
1782
1783 if (!match) {
1784 fclose(fp);
1785 return -1;
1786 }
1787 }
1788 }
1789
1790 fclose(fp);
1791 return 0;
1792}
1793
1794
1795
1796
1797
1798
1799
1800
1801int find_scripts(char **scripts_array, char **scripts_path_array)
1802{
1803 struct dirent *script_dirent, *lang_dirent;
1804 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
1805 DIR *scripts_dir, *lang_dir;
1806 struct perf_session *session;
1807 struct perf_data_file file = {
1808 .path = input_name,
1809 .mode = PERF_DATA_MODE_READ,
1810 };
1811 char *temp;
1812 int i = 0;
1813
1814 session = perf_session__new(&file, false, NULL);
1815 if (!session)
1816 return -1;
1817
1818 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1819
1820 scripts_dir = opendir(scripts_path);
1821 if (!scripts_dir) {
1822 perf_session__delete(session);
1823 return -1;
1824 }
1825
1826 for_each_lang(scripts_path, scripts_dir, lang_dirent) {
1827 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path,
1828 lang_dirent->d_name);
1829#ifdef NO_LIBPERL
1830 if (strstr(lang_path, "perl"))
1831 continue;
1832#endif
1833#ifdef NO_LIBPYTHON
1834 if (strstr(lang_path, "python"))
1835 continue;
1836#endif
1837
1838 lang_dir = opendir(lang_path);
1839 if (!lang_dir)
1840 continue;
1841
1842 for_each_script(lang_path, lang_dir, script_dirent) {
1843
1844 if (strstr(script_dirent->d_name, "top."))
1845 continue;
1846 sprintf(scripts_path_array[i], "%s/%s", lang_path,
1847 script_dirent->d_name);
1848 temp = strchr(script_dirent->d_name, '.');
1849 snprintf(scripts_array[i],
1850 (temp - script_dirent->d_name) + 1,
1851 "%s", script_dirent->d_name);
1852
1853 if (check_ev_match(lang_path,
1854 scripts_array[i], session))
1855 continue;
1856
1857 i++;
1858 }
1859 closedir(lang_dir);
1860 }
1861
1862 closedir(scripts_dir);
1863 perf_session__delete(session);
1864 return i;
1865}
1866
1867static char *get_script_path(const char *script_root, const char *suffix)
1868{
1869 struct dirent *script_dirent, *lang_dirent;
1870 char scripts_path[MAXPATHLEN];
1871 char script_path[MAXPATHLEN];
1872 DIR *scripts_dir, *lang_dir;
1873 char lang_path[MAXPATHLEN];
1874 char *__script_root;
1875
1876 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path());
1877
1878 scripts_dir = opendir(scripts_path);
1879 if (!scripts_dir)
1880 return NULL;
1881
1882 for_each_lang(scripts_path, scripts_dir, lang_dirent) {
1883 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
1884 lang_dirent->d_name);
1885 lang_dir = opendir(lang_path);
1886 if (!lang_dir)
1887 continue;
1888
1889 for_each_script(lang_path, lang_dir, script_dirent) {
1890 __script_root = get_script_root(script_dirent, suffix);
1891 if (__script_root && !strcmp(script_root, __script_root)) {
1892 free(__script_root);
1893 closedir(lang_dir);
1894 closedir(scripts_dir);
1895 snprintf(script_path, MAXPATHLEN, "%s/%s",
1896 lang_path, script_dirent->d_name);
1897 return strdup(script_path);
1898 }
1899 free(__script_root);
1900 }
1901 closedir(lang_dir);
1902 }
1903 closedir(scripts_dir);
1904
1905 return NULL;
1906}
1907
1908static bool is_top_script(const char *script_path)
1909{
1910 return ends_with(script_path, "top") == NULL ? false : true;
1911}
1912
1913static int has_required_arg(char *script_path)
1914{
1915 struct script_desc *desc;
1916 int n_args = 0;
1917 char *p;
1918
1919 desc = script_desc__new(NULL);
1920
1921 if (read_script_info(desc, script_path))
1922 goto out;
1923
1924 if (!desc->args)
1925 goto out;
1926
1927 for (p = desc->args; *p; p++)
1928 if (*p == '<')
1929 n_args++;
1930out:
1931 script_desc__delete(desc);
1932
1933 return n_args;
1934}
1935
1936static int have_cmd(int argc, const char **argv)
1937{
1938 char **__argv = malloc(sizeof(const char *) * argc);
1939
1940 if (!__argv) {
1941 pr_err("malloc failed\n");
1942 return -1;
1943 }
1944
1945 memcpy(__argv, argv, sizeof(const char *) * argc);
1946 argc = parse_options(argc, (const char **)__argv, record_options,
1947 NULL, PARSE_OPT_STOP_AT_NON_OPTION);
1948 free(__argv);
1949
1950 system_wide = (argc == 0);
1951
1952 return 0;
1953}
1954
1955static void script__setup_sample_type(struct perf_script *script)
1956{
1957 struct perf_session *session = script->session;
1958 u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
1959
1960 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
1961 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
1962 (sample_type & PERF_SAMPLE_STACK_USER))
1963 callchain_param.record_mode = CALLCHAIN_DWARF;
1964 else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
1965 callchain_param.record_mode = CALLCHAIN_LBR;
1966 else
1967 callchain_param.record_mode = CALLCHAIN_FP;
1968 }
1969}
1970
1971static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
1972 union perf_event *event,
1973 struct perf_session *session)
1974{
1975 struct stat_round_event *round = &event->stat_round;
1976 struct perf_evsel *counter;
1977
1978 evlist__for_each_entry(session->evlist, counter) {
1979 perf_stat_process_counter(&stat_config, counter);
1980 process_stat(counter, round->time);
1981 }
1982
1983 process_stat_interval(round->time);
1984 return 0;
1985}
1986
1987static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
1988 union perf_event *event,
1989 struct perf_session *session __maybe_unused)
1990{
1991 perf_event__read_stat_config(&stat_config, &event->stat_config);
1992 return 0;
1993}
1994
1995static int set_maps(struct perf_script *script)
1996{
1997 struct perf_evlist *evlist = script->session->evlist;
1998
1999 if (!script->cpus || !script->threads)
2000 return 0;
2001
2002 if (WARN_ONCE(script->allocated, "stats double allocation\n"))
2003 return -EINVAL;
2004
2005 perf_evlist__set_maps(evlist, script->cpus, script->threads);
2006
2007 if (perf_evlist__alloc_stats(evlist, true))
2008 return -ENOMEM;
2009
2010 script->allocated = true;
2011 return 0;
2012}
2013
2014static
2015int process_thread_map_event(struct perf_tool *tool,
2016 union perf_event *event,
2017 struct perf_session *session __maybe_unused)
2018{
2019 struct perf_script *script = container_of(tool, struct perf_script, tool);
2020
2021 if (script->threads) {
2022 pr_warning("Extra thread map event, ignoring.\n");
2023 return 0;
2024 }
2025
2026 script->threads = thread_map__new_event(&event->thread_map);
2027 if (!script->threads)
2028 return -ENOMEM;
2029
2030 return set_maps(script);
2031}
2032
2033static
2034int process_cpu_map_event(struct perf_tool *tool __maybe_unused,
2035 union perf_event *event,
2036 struct perf_session *session __maybe_unused)
2037{
2038 struct perf_script *script = container_of(tool, struct perf_script, tool);
2039
2040 if (script->cpus) {
2041 pr_warning("Extra cpu map event, ignoring.\n");
2042 return 0;
2043 }
2044
2045 script->cpus = cpu_map__new_data(&event->cpu_map.data);
2046 if (!script->cpus)
2047 return -ENOMEM;
2048
2049 return set_maps(script);
2050}
2051
2052int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
2053{
2054 bool show_full_info = false;
2055 bool header = false;
2056 bool header_only = false;
2057 bool script_started = false;
2058 char *rec_script_path = NULL;
2059 char *rep_script_path = NULL;
2060 struct perf_session *session;
2061 struct itrace_synth_opts itrace_synth_opts = { .set = false, };
2062 char *script_path = NULL;
2063 const char **__argv;
2064 int i, j, err = 0;
2065 struct perf_script script = {
2066 .tool = {
2067 .sample = process_sample_event,
2068 .mmap = perf_event__process_mmap,
2069 .mmap2 = perf_event__process_mmap2,
2070 .comm = perf_event__process_comm,
2071 .exit = perf_event__process_exit,
2072 .fork = perf_event__process_fork,
2073 .attr = process_attr,
2074 .event_update = perf_event__process_event_update,
2075 .tracing_data = perf_event__process_tracing_data,
2076 .build_id = perf_event__process_build_id,
2077 .id_index = perf_event__process_id_index,
2078 .auxtrace_info = perf_event__process_auxtrace_info,
2079 .auxtrace = perf_event__process_auxtrace,
2080 .auxtrace_error = perf_event__process_auxtrace_error,
2081 .stat = perf_event__process_stat_event,
2082 .stat_round = process_stat_round_event,
2083 .stat_config = process_stat_config_event,
2084 .thread_map = process_thread_map_event,
2085 .cpu_map = process_cpu_map_event,
2086 .ordered_events = true,
2087 .ordering_requires_timestamps = true,
2088 },
2089 };
2090 struct perf_data_file file = {
2091 .mode = PERF_DATA_MODE_READ,
2092 };
2093 const struct option options[] = {
2094 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
2095 "dump raw trace in ASCII"),
2096 OPT_INCR('v', "verbose", &verbose,
2097 "be more verbose (show symbol address, etc)"),
2098 OPT_BOOLEAN('L', "Latency", &latency_format,
2099 "show latency attributes (irqs/preemption disabled, etc)"),
2100 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
2101 list_available_scripts),
2102 OPT_CALLBACK('s', "script", NULL, "name",
2103 "script file name (lang:script name, script name, or *)",
2104 parse_scriptname),
2105 OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
2106 "generate perf-script.xx script in specified language"),
2107 OPT_STRING('i', "input", &input_name, "file", "input file name"),
2108 OPT_BOOLEAN('d', "debug-mode", &debug_mode,
2109 "do various checks like samples ordering and lost events"),
2110 OPT_BOOLEAN(0, "header", &header, "Show data header."),
2111 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."),
2112 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
2113 "file", "vmlinux pathname"),
2114 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
2115 "file", "kallsyms pathname"),
2116 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain,
2117 "When printing symbols do not display call chain"),
2118 OPT_CALLBACK(0, "symfs", NULL, "directory",
2119 "Look for files with symbols relative to this directory",
2120 symbol__config_symfs),
2121 OPT_CALLBACK('F', "fields", NULL, "str",
2122 "comma separated output fields prepend with 'type:'. "
2123 "Valid types: hw,sw,trace,raw. "
2124 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
2125 "addr,symoff,period,iregs,brstack,brstacksym,flags,"
2126 "bpf-output,callindent", parse_output_fields),
2127 OPT_BOOLEAN('a', "all-cpus", &system_wide,
2128 "system-wide collection from all CPUs"),
2129 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
2130 "only consider these symbols"),
2131 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
2132 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
2133 "only display events for these comms"),
2134 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
2135 "only consider symbols in these pids"),
2136 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
2137 "only consider symbols in these tids"),
2138 OPT_UINTEGER(0, "max-stack", &scripting_max_stack,
2139 "Set the maximum stack depth when parsing the callchain, "
2140 "anything beyond the specified depth will be ignored. "
2141 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
2142 OPT_BOOLEAN('I', "show-info", &show_full_info,
2143 "display extended information from perf.data file"),
2144 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
2145 "Show the path of [kernel.kallsyms]"),
2146 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events,
2147 "Show the fork/comm/exit events"),
2148 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
2149 "Show the mmap events"),
2150 OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events,
2151 "Show context switch events (if recorded)"),
2152 OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
2153 OPT_BOOLEAN(0, "ns", &nanosecs,
2154 "Use 9 decimal places when displaying time"),
2155 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
2156 "Instruction Tracing options",
2157 itrace_parse_synth_opts),
2158 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
2159 "Show full source file name path for source lines"),
2160 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
2161 "Enable symbol demangling"),
2162 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
2163 "Enable kernel symbol demangling"),
2164
2165 OPT_END()
2166 };
2167 const char * const script_subcommands[] = { "record", "report", NULL };
2168 const char *script_usage[] = {
2169 "perf script [<options>]",
2170 "perf script [<options>] record <script> [<record-options>] <command>",
2171 "perf script [<options>] report <script> [script-args]",
2172 "perf script [<options>] <script> [<record-options>] <command>",
2173 "perf script [<options>] <top-script> [script-args]",
2174 NULL
2175 };
2176
2177 setup_scripting();
2178
2179 argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
2180 PARSE_OPT_STOP_AT_NON_OPTION);
2181
2182 file.path = input_name;
2183
2184 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
2185 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
2186 if (!rec_script_path)
2187 return cmd_record(argc, argv, NULL);
2188 }
2189
2190 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
2191 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
2192 if (!rep_script_path) {
2193 fprintf(stderr,
2194 "Please specify a valid report script"
2195 "(see 'perf script -l' for listing)\n");
2196 return -1;
2197 }
2198 }
2199
2200 if (itrace_synth_opts.callchain &&
2201 itrace_synth_opts.callchain_sz > scripting_max_stack)
2202 scripting_max_stack = itrace_synth_opts.callchain_sz;
2203
2204
2205 set_argv_exec_path(get_argv_exec_path());
2206
2207 if (argc && !script_name && !rec_script_path && !rep_script_path) {
2208 int live_pipe[2];
2209 int rep_args;
2210 pid_t pid;
2211
2212 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
2213 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
2214
2215 if (!rec_script_path && !rep_script_path) {
2216 usage_with_options_msg(script_usage, options,
2217 "Couldn't find script `%s'\n\n See perf"
2218 " script -l for available scripts.\n", argv[0]);
2219 }
2220
2221 if (is_top_script(argv[0])) {
2222 rep_args = argc - 1;
2223 } else {
2224 int rec_args;
2225
2226 rep_args = has_required_arg(rep_script_path);
2227 rec_args = (argc - 1) - rep_args;
2228 if (rec_args < 0) {
2229 usage_with_options_msg(script_usage, options,
2230 "`%s' script requires options."
2231 "\n\n See perf script -l for available "
2232 "scripts and options.\n", argv[0]);
2233 }
2234 }
2235
2236 if (pipe(live_pipe) < 0) {
2237 perror("failed to create pipe");
2238 return -1;
2239 }
2240
2241 pid = fork();
2242 if (pid < 0) {
2243 perror("failed to fork");
2244 return -1;
2245 }
2246
2247 if (!pid) {
2248 j = 0;
2249
2250 dup2(live_pipe[1], 1);
2251 close(live_pipe[0]);
2252
2253 if (is_top_script(argv[0])) {
2254 system_wide = true;
2255 } else if (!system_wide) {
2256 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
2257 err = -1;
2258 goto out;
2259 }
2260 }
2261
2262 __argv = malloc((argc + 6) * sizeof(const char *));
2263 if (!__argv) {
2264 pr_err("malloc failed\n");
2265 err = -ENOMEM;
2266 goto out;
2267 }
2268
2269 __argv[j++] = "/bin/sh";
2270 __argv[j++] = rec_script_path;
2271 if (system_wide)
2272 __argv[j++] = "-a";
2273 __argv[j++] = "-q";
2274 __argv[j++] = "-o";
2275 __argv[j++] = "-";
2276 for (i = rep_args + 1; i < argc; i++)
2277 __argv[j++] = argv[i];
2278 __argv[j++] = NULL;
2279
2280 execvp("/bin/sh", (char **)__argv);
2281 free(__argv);
2282 exit(-1);
2283 }
2284
2285 dup2(live_pipe[0], 0);
2286 close(live_pipe[1]);
2287
2288 __argv = malloc((argc + 4) * sizeof(const char *));
2289 if (!__argv) {
2290 pr_err("malloc failed\n");
2291 err = -ENOMEM;
2292 goto out;
2293 }
2294
2295 j = 0;
2296 __argv[j++] = "/bin/sh";
2297 __argv[j++] = rep_script_path;
2298 for (i = 1; i < rep_args + 1; i++)
2299 __argv[j++] = argv[i];
2300 __argv[j++] = "-i";
2301 __argv[j++] = "-";
2302 __argv[j++] = NULL;
2303
2304 execvp("/bin/sh", (char **)__argv);
2305 free(__argv);
2306 exit(-1);
2307 }
2308
2309 if (rec_script_path)
2310 script_path = rec_script_path;
2311 if (rep_script_path)
2312 script_path = rep_script_path;
2313
2314 if (script_path) {
2315 j = 0;
2316
2317 if (!rec_script_path)
2318 system_wide = false;
2319 else if (!system_wide) {
2320 if (have_cmd(argc - 1, &argv[1]) != 0) {
2321 err = -1;
2322 goto out;
2323 }
2324 }
2325
2326 __argv = malloc((argc + 2) * sizeof(const char *));
2327 if (!__argv) {
2328 pr_err("malloc failed\n");
2329 err = -ENOMEM;
2330 goto out;
2331 }
2332
2333 __argv[j++] = "/bin/sh";
2334 __argv[j++] = script_path;
2335 if (system_wide)
2336 __argv[j++] = "-a";
2337 for (i = 2; i < argc; i++)
2338 __argv[j++] = argv[i];
2339 __argv[j++] = NULL;
2340
2341 execvp("/bin/sh", (char **)__argv);
2342 free(__argv);
2343 exit(-1);
2344 }
2345
2346 if (!script_name)
2347 setup_pager();
2348
2349 session = perf_session__new(&file, false, &script.tool);
2350 if (session == NULL)
2351 return -1;
2352
2353 if (header || header_only) {
2354 perf_session__fprintf_info(session, stdout, show_full_info);
2355 if (header_only)
2356 goto out_delete;
2357 }
2358
2359 if (symbol__init(&session->header.env) < 0)
2360 goto out_delete;
2361
2362 script.session = session;
2363 script__setup_sample_type(&script);
2364
2365 if (output[PERF_TYPE_HARDWARE].fields & PERF_OUTPUT_CALLINDENT)
2366 itrace_synth_opts.thread_stack = true;
2367
2368 session->itrace_synth_opts = &itrace_synth_opts;
2369
2370 if (cpu_list) {
2371 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
2372 if (err < 0)
2373 goto out_delete;
2374 }
2375
2376 if (!no_callchain)
2377 symbol_conf.use_callchain = true;
2378 else
2379 symbol_conf.use_callchain = false;
2380
2381 if (session->tevent.pevent &&
2382 pevent_set_function_resolver(session->tevent.pevent,
2383 machine__resolve_kernel_addr,
2384 &session->machines.host) < 0) {
2385 pr_err("%s: failed to set libtraceevent function resolver\n", __func__);
2386 return -1;
2387 }
2388
2389 if (generate_script_lang) {
2390 struct stat perf_stat;
2391 int input;
2392
2393 if (output_set_by_user()) {
2394 fprintf(stderr,
2395 "custom fields not supported for generated scripts");
2396 err = -EINVAL;
2397 goto out_delete;
2398 }
2399
2400 input = open(file.path, O_RDONLY);
2401 if (input < 0) {
2402 err = -errno;
2403 perror("failed to open file");
2404 goto out_delete;
2405 }
2406
2407 err = fstat(input, &perf_stat);
2408 if (err < 0) {
2409 perror("failed to stat file");
2410 goto out_delete;
2411 }
2412
2413 if (!perf_stat.st_size) {
2414 fprintf(stderr, "zero-sized file, nothing to do!\n");
2415 goto out_delete;
2416 }
2417
2418 scripting_ops = script_spec__lookup(generate_script_lang);
2419 if (!scripting_ops) {
2420 fprintf(stderr, "invalid language specifier");
2421 err = -ENOENT;
2422 goto out_delete;
2423 }
2424
2425 err = scripting_ops->generate_script(session->tevent.pevent,
2426 "perf-script");
2427 goto out_delete;
2428 }
2429
2430 if (script_name) {
2431 err = scripting_ops->start_script(script_name, argc, argv);
2432 if (err)
2433 goto out_delete;
2434 pr_debug("perf script started with script %s\n\n", script_name);
2435 script_started = true;
2436 }
2437
2438
2439 err = perf_session__check_output_opt(session);
2440 if (err < 0)
2441 goto out_delete;
2442
2443 err = __cmd_script(&script);
2444
2445 flush_scripting();
2446
2447out_delete:
2448 perf_evlist__free_stats(session->evlist);
2449 perf_session__delete(session);
2450
2451 if (script_started)
2452 cleanup_scripting();
2453out:
2454 return err;
2455}
2456
