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1 | #include "builtin.h" |
2 | |
3 | #include "perf.h" |
4 | #include "util/cache.h" |
5 | #include "util/debug.h" |
6 | #include "util/exec_cmd.h" |
7 | #include "util/header.h" |
8 | #include "util/parse-options.h" |
9 | #include "util/session.h" |
10 | #include "util/tool.h" |
11 | #include "util/symbol.h" |
12 | #include "util/thread.h" |
13 | #include "util/trace-event.h" |
14 | #include "util/util.h" |
15 | #include "util/evlist.h" |
16 | #include "util/evsel.h" |
17 | #include "util/sort.h" |
18 | #include "util/data.h" |
19 | #include <linux/bitmap.h> |
20 | |
21 | static char const *script_name; |
22 | static char const *generate_script_lang; |
23 | static bool debug_mode; |
24 | static u64 last_timestamp; |
25 | static u64 nr_unordered; |
26 | extern const struct option record_options[]; |
27 | static bool no_callchain; |
28 | static bool latency_format; |
29 | static bool system_wide; |
30 | static const char *cpu_list; |
31 | static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); |
32 | |
33 | enum perf_output_field { |
34 | PERF_OUTPUT_COMM = 1U << 0, |
35 | PERF_OUTPUT_TID = 1U << 1, |
36 | PERF_OUTPUT_PID = 1U << 2, |
37 | PERF_OUTPUT_TIME = 1U << 3, |
38 | PERF_OUTPUT_CPU = 1U << 4, |
39 | PERF_OUTPUT_EVNAME = 1U << 5, |
40 | PERF_OUTPUT_TRACE = 1U << 6, |
41 | PERF_OUTPUT_IP = 1U << 7, |
42 | PERF_OUTPUT_SYM = 1U << 8, |
43 | PERF_OUTPUT_DSO = 1U << 9, |
44 | PERF_OUTPUT_ADDR = 1U << 10, |
45 | PERF_OUTPUT_SYMOFFSET = 1U << 11, |
46 | PERF_OUTPUT_SRCLINE = 1U << 12, |
47 | }; |
48 | |
49 | struct output_option { |
50 | const char *str; |
51 | enum perf_output_field field; |
52 | } all_output_options[] = { |
53 | {.str = "comm", .field = PERF_OUTPUT_COMM}, |
54 | {.str = "tid", .field = PERF_OUTPUT_TID}, |
55 | {.str = "pid", .field = PERF_OUTPUT_PID}, |
56 | {.str = "time", .field = PERF_OUTPUT_TIME}, |
57 | {.str = "cpu", .field = PERF_OUTPUT_CPU}, |
58 | {.str = "event", .field = PERF_OUTPUT_EVNAME}, |
59 | {.str = "trace", .field = PERF_OUTPUT_TRACE}, |
60 | {.str = "ip", .field = PERF_OUTPUT_IP}, |
61 | {.str = "sym", .field = PERF_OUTPUT_SYM}, |
62 | {.str = "dso", .field = PERF_OUTPUT_DSO}, |
63 | {.str = "addr", .field = PERF_OUTPUT_ADDR}, |
64 | {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, |
65 | {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, |
66 | }; |
67 | |
68 | /* default set to maintain compatibility with current format */ |
69 | static struct { |
70 | bool user_set; |
71 | bool wildcard_set; |
72 | unsigned int print_ip_opts; |
73 | u64 fields; |
74 | u64 invalid_fields; |
75 | } output[PERF_TYPE_MAX] = { |
76 | |
77 | [PERF_TYPE_HARDWARE] = { |
78 | .user_set = false, |
79 | |
80 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
81 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
82 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
83 | PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, |
84 | |
85 | .invalid_fields = PERF_OUTPUT_TRACE, |
86 | }, |
87 | |
88 | [PERF_TYPE_SOFTWARE] = { |
89 | .user_set = false, |
90 | |
91 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
92 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
93 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
94 | PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, |
95 | |
96 | .invalid_fields = PERF_OUTPUT_TRACE, |
97 | }, |
98 | |
99 | [PERF_TYPE_TRACEPOINT] = { |
100 | .user_set = false, |
101 | |
102 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
103 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
104 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, |
105 | }, |
106 | |
107 | [PERF_TYPE_RAW] = { |
108 | .user_set = false, |
109 | |
110 | .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | |
111 | PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | |
112 | PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | |
113 | PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, |
114 | |
115 | .invalid_fields = PERF_OUTPUT_TRACE, |
116 | }, |
117 | }; |
118 | |
119 | static bool output_set_by_user(void) |
120 | { |
121 | int j; |
122 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
123 | if (output[j].user_set) |
124 | return true; |
125 | } |
126 | return false; |
127 | } |
128 | |
129 | static const char *output_field2str(enum perf_output_field field) |
130 | { |
131 | int i, imax = ARRAY_SIZE(all_output_options); |
132 | const char *str = ""; |
133 | |
134 | for (i = 0; i < imax; ++i) { |
135 | if (all_output_options[i].field == field) { |
136 | str = all_output_options[i].str; |
137 | break; |
138 | } |
139 | } |
140 | return str; |
141 | } |
142 | |
143 | #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) |
144 | |
145 | static int perf_evsel__check_stype(struct perf_evsel *evsel, |
146 | u64 sample_type, const char *sample_msg, |
147 | enum perf_output_field field) |
148 | { |
149 | struct perf_event_attr *attr = &evsel->attr; |
150 | int type = attr->type; |
151 | const char *evname; |
152 | |
153 | if (attr->sample_type & sample_type) |
154 | return 0; |
155 | |
156 | if (output[type].user_set) { |
157 | evname = perf_evsel__name(evsel); |
158 | pr_err("Samples for '%s' event do not have %s attribute set. " |
159 | "Cannot print '%s' field.\n", |
160 | evname, sample_msg, output_field2str(field)); |
161 | return -1; |
162 | } |
163 | |
164 | /* user did not ask for it explicitly so remove from the default list */ |
165 | output[type].fields &= ~field; |
166 | evname = perf_evsel__name(evsel); |
167 | pr_debug("Samples for '%s' event do not have %s attribute set. " |
168 | "Skipping '%s' field.\n", |
169 | evname, sample_msg, output_field2str(field)); |
170 | |
171 | return 0; |
172 | } |
173 | |
174 | static int perf_evsel__check_attr(struct perf_evsel *evsel, |
175 | struct perf_session *session) |
176 | { |
177 | struct perf_event_attr *attr = &evsel->attr; |
178 | |
179 | if (PRINT_FIELD(TRACE) && |
180 | !perf_session__has_traces(session, "record -R")) |
181 | return -EINVAL; |
182 | |
183 | if (PRINT_FIELD(IP)) { |
184 | if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", |
185 | PERF_OUTPUT_IP)) |
186 | return -EINVAL; |
187 | |
188 | if (!no_callchain && |
189 | !(attr->sample_type & PERF_SAMPLE_CALLCHAIN)) |
190 | symbol_conf.use_callchain = false; |
191 | } |
192 | |
193 | if (PRINT_FIELD(ADDR) && |
194 | perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", |
195 | PERF_OUTPUT_ADDR)) |
196 | return -EINVAL; |
197 | |
198 | if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { |
199 | pr_err("Display of symbols requested but neither sample IP nor " |
200 | "sample address\nis selected. Hence, no addresses to convert " |
201 | "to symbols.\n"); |
202 | return -EINVAL; |
203 | } |
204 | if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) { |
205 | pr_err("Display of offsets requested but symbol is not" |
206 | "selected.\n"); |
207 | return -EINVAL; |
208 | } |
209 | if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { |
210 | pr_err("Display of DSO requested but neither sample IP nor " |
211 | "sample address\nis selected. Hence, no addresses to convert " |
212 | "to DSO.\n"); |
213 | return -EINVAL; |
214 | } |
215 | if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) { |
216 | pr_err("Display of source line number requested but sample IP is not\n" |
217 | "selected. Hence, no address to lookup the source line number.\n"); |
218 | return -EINVAL; |
219 | } |
220 | |
221 | if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && |
222 | perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", |
223 | PERF_OUTPUT_TID|PERF_OUTPUT_PID)) |
224 | return -EINVAL; |
225 | |
226 | if (PRINT_FIELD(TIME) && |
227 | perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", |
228 | PERF_OUTPUT_TIME)) |
229 | return -EINVAL; |
230 | |
231 | if (PRINT_FIELD(CPU) && |
232 | perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU", |
233 | PERF_OUTPUT_CPU)) |
234 | return -EINVAL; |
235 | |
236 | return 0; |
237 | } |
238 | |
239 | static void set_print_ip_opts(struct perf_event_attr *attr) |
240 | { |
241 | unsigned int type = attr->type; |
242 | |
243 | output[type].print_ip_opts = 0; |
244 | if (PRINT_FIELD(IP)) |
245 | output[type].print_ip_opts |= PRINT_IP_OPT_IP; |
246 | |
247 | if (PRINT_FIELD(SYM)) |
248 | output[type].print_ip_opts |= PRINT_IP_OPT_SYM; |
249 | |
250 | if (PRINT_FIELD(DSO)) |
251 | output[type].print_ip_opts |= PRINT_IP_OPT_DSO; |
252 | |
253 | if (PRINT_FIELD(SYMOFFSET)) |
254 | output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET; |
255 | |
256 | if (PRINT_FIELD(SRCLINE)) |
257 | output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE; |
258 | } |
259 | |
260 | /* |
261 | * verify all user requested events exist and the samples |
262 | * have the expected data |
263 | */ |
264 | static int perf_session__check_output_opt(struct perf_session *session) |
265 | { |
266 | int j; |
267 | struct perf_evsel *evsel; |
268 | |
269 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
270 | evsel = perf_session__find_first_evtype(session, j); |
271 | |
272 | /* |
273 | * even if fields is set to 0 (ie., show nothing) event must |
274 | * exist if user explicitly includes it on the command line |
275 | */ |
276 | if (!evsel && output[j].user_set && !output[j].wildcard_set) { |
277 | pr_err("%s events do not exist. " |
278 | "Remove corresponding -f option to proceed.\n", |
279 | event_type(j)); |
280 | return -1; |
281 | } |
282 | |
283 | if (evsel && output[j].fields && |
284 | perf_evsel__check_attr(evsel, session)) |
285 | return -1; |
286 | |
287 | if (evsel == NULL) |
288 | continue; |
289 | |
290 | set_print_ip_opts(&evsel->attr); |
291 | } |
292 | |
293 | /* |
294 | * set default for tracepoints to print symbols only |
295 | * if callchains are present |
296 | */ |
297 | if (symbol_conf.use_callchain && |
298 | !output[PERF_TYPE_TRACEPOINT].user_set) { |
299 | struct perf_event_attr *attr; |
300 | |
301 | j = PERF_TYPE_TRACEPOINT; |
302 | evsel = perf_session__find_first_evtype(session, j); |
303 | if (evsel == NULL) |
304 | goto out; |
305 | |
306 | attr = &evsel->attr; |
307 | |
308 | if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) { |
309 | output[j].fields |= PERF_OUTPUT_IP; |
310 | output[j].fields |= PERF_OUTPUT_SYM; |
311 | output[j].fields |= PERF_OUTPUT_DSO; |
312 | set_print_ip_opts(attr); |
313 | } |
314 | } |
315 | |
316 | out: |
317 | return 0; |
318 | } |
319 | |
320 | static void print_sample_start(struct perf_sample *sample, |
321 | struct thread *thread, |
322 | struct perf_evsel *evsel) |
323 | { |
324 | struct perf_event_attr *attr = &evsel->attr; |
325 | unsigned long secs; |
326 | unsigned long usecs; |
327 | unsigned long long nsecs; |
328 | |
329 | if (PRINT_FIELD(COMM)) { |
330 | if (latency_format) |
331 | printf("%8.8s ", thread__comm_str(thread)); |
332 | else if (PRINT_FIELD(IP) && symbol_conf.use_callchain) |
333 | printf("%s ", thread__comm_str(thread)); |
334 | else |
335 | printf("%16s ", thread__comm_str(thread)); |
336 | } |
337 | |
338 | if (PRINT_FIELD(PID) && PRINT_FIELD(TID)) |
339 | printf("%5d/%-5d ", sample->pid, sample->tid); |
340 | else if (PRINT_FIELD(PID)) |
341 | printf("%5d ", sample->pid); |
342 | else if (PRINT_FIELD(TID)) |
343 | printf("%5d ", sample->tid); |
344 | |
345 | if (PRINT_FIELD(CPU)) { |
346 | if (latency_format) |
347 | printf("%3d ", sample->cpu); |
348 | else |
349 | printf("[%03d] ", sample->cpu); |
350 | } |
351 | |
352 | if (PRINT_FIELD(TIME)) { |
353 | nsecs = sample->time; |
354 | secs = nsecs / NSECS_PER_SEC; |
355 | nsecs -= secs * NSECS_PER_SEC; |
356 | usecs = nsecs / NSECS_PER_USEC; |
357 | printf("%5lu.%06lu: ", secs, usecs); |
358 | } |
359 | } |
360 | |
361 | static bool is_bts_event(struct perf_event_attr *attr) |
362 | { |
363 | return ((attr->type == PERF_TYPE_HARDWARE) && |
364 | (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && |
365 | (attr->sample_period == 1)); |
366 | } |
367 | |
368 | static bool sample_addr_correlates_sym(struct perf_event_attr *attr) |
369 | { |
370 | if ((attr->type == PERF_TYPE_SOFTWARE) && |
371 | ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) || |
372 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) || |
373 | (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))) |
374 | return true; |
375 | |
376 | if (is_bts_event(attr)) |
377 | return true; |
378 | |
379 | return false; |
380 | } |
381 | |
382 | static void print_sample_addr(union perf_event *event, |
383 | struct perf_sample *sample, |
384 | struct machine *machine, |
385 | struct thread *thread, |
386 | struct perf_event_attr *attr) |
387 | { |
388 | struct addr_location al; |
389 | u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
390 | |
391 | printf("%16" PRIx64, sample->addr); |
392 | |
393 | if (!sample_addr_correlates_sym(attr)) |
394 | return; |
395 | |
396 | thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, |
397 | sample->addr, &al); |
398 | if (!al.map) |
399 | thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE, |
400 | sample->addr, &al); |
401 | |
402 | al.cpu = sample->cpu; |
403 | al.sym = NULL; |
404 | |
405 | if (al.map) |
406 | al.sym = map__find_symbol(al.map, al.addr, NULL); |
407 | |
408 | if (PRINT_FIELD(SYM)) { |
409 | printf(" "); |
410 | if (PRINT_FIELD(SYMOFFSET)) |
411 | symbol__fprintf_symname_offs(al.sym, &al, stdout); |
412 | else |
413 | symbol__fprintf_symname(al.sym, stdout); |
414 | } |
415 | |
416 | if (PRINT_FIELD(DSO)) { |
417 | printf(" ("); |
418 | map__fprintf_dsoname(al.map, stdout); |
419 | printf(")"); |
420 | } |
421 | } |
422 | |
423 | static void print_sample_bts(union perf_event *event, |
424 | struct perf_sample *sample, |
425 | struct perf_evsel *evsel, |
426 | struct thread *thread, |
427 | struct addr_location *al) |
428 | { |
429 | struct perf_event_attr *attr = &evsel->attr; |
430 | |
431 | /* print branch_from information */ |
432 | if (PRINT_FIELD(IP)) { |
433 | if (!symbol_conf.use_callchain) |
434 | printf(" "); |
435 | else |
436 | printf("\n"); |
437 | perf_evsel__print_ip(evsel, sample, al, |
438 | output[attr->type].print_ip_opts, |
439 | PERF_MAX_STACK_DEPTH); |
440 | } |
441 | |
442 | printf(" => "); |
443 | |
444 | /* print branch_to information */ |
445 | if (PRINT_FIELD(ADDR) || |
446 | ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) && |
447 | !output[attr->type].user_set)) |
448 | print_sample_addr(event, sample, al->machine, thread, attr); |
449 | |
450 | printf("\n"); |
451 | } |
452 | |
453 | static void process_event(union perf_event *event, struct perf_sample *sample, |
454 | struct perf_evsel *evsel, struct thread *thread, |
455 | struct addr_location *al) |
456 | { |
457 | struct perf_event_attr *attr = &evsel->attr; |
458 | |
459 | if (output[attr->type].fields == 0) |
460 | return; |
461 | |
462 | print_sample_start(sample, thread, evsel); |
463 | |
464 | if (PRINT_FIELD(EVNAME)) { |
465 | const char *evname = perf_evsel__name(evsel); |
466 | printf("%s: ", evname ? evname : "[unknown]"); |
467 | } |
468 | |
469 | if (is_bts_event(attr)) { |
470 | print_sample_bts(event, sample, evsel, thread, al); |
471 | return; |
472 | } |
473 | |
474 | if (PRINT_FIELD(TRACE)) |
475 | event_format__print(evsel->tp_format, sample->cpu, |
476 | sample->raw_data, sample->raw_size); |
477 | if (PRINT_FIELD(ADDR)) |
478 | print_sample_addr(event, sample, al->machine, thread, attr); |
479 | |
480 | if (PRINT_FIELD(IP)) { |
481 | if (!symbol_conf.use_callchain) |
482 | printf(" "); |
483 | else |
484 | printf("\n"); |
485 | |
486 | perf_evsel__print_ip(evsel, sample, al, |
487 | output[attr->type].print_ip_opts, |
488 | PERF_MAX_STACK_DEPTH); |
489 | } |
490 | |
491 | printf("\n"); |
492 | } |
493 | |
494 | static int default_start_script(const char *script __maybe_unused, |
495 | int argc __maybe_unused, |
496 | const char **argv __maybe_unused) |
497 | { |
498 | return 0; |
499 | } |
500 | |
501 | static int default_stop_script(void) |
502 | { |
503 | return 0; |
504 | } |
505 | |
506 | static int default_generate_script(struct pevent *pevent __maybe_unused, |
507 | const char *outfile __maybe_unused) |
508 | { |
509 | return 0; |
510 | } |
511 | |
512 | static struct scripting_ops default_scripting_ops = { |
513 | .start_script = default_start_script, |
514 | .stop_script = default_stop_script, |
515 | .process_event = process_event, |
516 | .generate_script = default_generate_script, |
517 | }; |
518 | |
519 | static struct scripting_ops *scripting_ops; |
520 | |
521 | static void setup_scripting(void) |
522 | { |
523 | setup_perl_scripting(); |
524 | setup_python_scripting(); |
525 | |
526 | scripting_ops = &default_scripting_ops; |
527 | } |
528 | |
529 | static int cleanup_scripting(void) |
530 | { |
531 | pr_debug("\nperf script stopped\n"); |
532 | |
533 | return scripting_ops->stop_script(); |
534 | } |
535 | |
536 | static int process_sample_event(struct perf_tool *tool __maybe_unused, |
537 | union perf_event *event, |
538 | struct perf_sample *sample, |
539 | struct perf_evsel *evsel, |
540 | struct machine *machine) |
541 | { |
542 | struct addr_location al; |
543 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
544 | sample->tid); |
545 | |
546 | if (thread == NULL) { |
547 | pr_debug("problem processing %d event, skipping it.\n", |
548 | event->header.type); |
549 | return -1; |
550 | } |
551 | |
552 | if (debug_mode) { |
553 | if (sample->time < last_timestamp) { |
554 | pr_err("Samples misordered, previous: %" PRIu64 |
555 | " this: %" PRIu64 "\n", last_timestamp, |
556 | sample->time); |
557 | nr_unordered++; |
558 | } |
559 | last_timestamp = sample->time; |
560 | return 0; |
561 | } |
562 | |
563 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { |
564 | pr_err("problem processing %d event, skipping it.\n", |
565 | event->header.type); |
566 | return -1; |
567 | } |
568 | |
569 | if (al.filtered) |
570 | return 0; |
571 | |
572 | if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) |
573 | return 0; |
574 | |
575 | scripting_ops->process_event(event, sample, evsel, thread, &al); |
576 | |
577 | evsel->hists.stats.total_period += sample->period; |
578 | return 0; |
579 | } |
580 | |
581 | struct perf_script { |
582 | struct perf_tool tool; |
583 | struct perf_session *session; |
584 | bool show_task_events; |
585 | bool show_mmap_events; |
586 | }; |
587 | |
588 | static int process_attr(struct perf_tool *tool, union perf_event *event, |
589 | struct perf_evlist **pevlist) |
590 | { |
591 | struct perf_script *scr = container_of(tool, struct perf_script, tool); |
592 | struct perf_evlist *evlist; |
593 | struct perf_evsel *evsel, *pos; |
594 | int err; |
595 | |
596 | err = perf_event__process_attr(tool, event, pevlist); |
597 | if (err) |
598 | return err; |
599 | |
600 | evlist = *pevlist; |
601 | evsel = perf_evlist__last(*pevlist); |
602 | |
603 | if (evsel->attr.type >= PERF_TYPE_MAX) |
604 | return 0; |
605 | |
606 | evlist__for_each(evlist, pos) { |
607 | if (pos->attr.type == evsel->attr.type && pos != evsel) |
608 | return 0; |
609 | } |
610 | |
611 | set_print_ip_opts(&evsel->attr); |
612 | |
613 | return perf_evsel__check_attr(evsel, scr->session); |
614 | } |
615 | |
616 | static int process_comm_event(struct perf_tool *tool, |
617 | union perf_event *event, |
618 | struct perf_sample *sample, |
619 | struct machine *machine) |
620 | { |
621 | struct thread *thread; |
622 | struct perf_script *script = container_of(tool, struct perf_script, tool); |
623 | struct perf_session *session = script->session; |
624 | struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
625 | int ret = -1; |
626 | |
627 | thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid); |
628 | if (thread == NULL) { |
629 | pr_debug("problem processing COMM event, skipping it.\n"); |
630 | return -1; |
631 | } |
632 | |
633 | if (perf_event__process_comm(tool, event, sample, machine) < 0) |
634 | goto out; |
635 | |
636 | if (!evsel->attr.sample_id_all) { |
637 | sample->cpu = 0; |
638 | sample->time = 0; |
639 | sample->tid = event->comm.tid; |
640 | sample->pid = event->comm.pid; |
641 | } |
642 | print_sample_start(sample, thread, evsel); |
643 | perf_event__fprintf(event, stdout); |
644 | ret = 0; |
645 | |
646 | out: |
647 | return ret; |
648 | } |
649 | |
650 | static int process_fork_event(struct perf_tool *tool, |
651 | union perf_event *event, |
652 | struct perf_sample *sample, |
653 | struct machine *machine) |
654 | { |
655 | struct thread *thread; |
656 | struct perf_script *script = container_of(tool, struct perf_script, tool); |
657 | struct perf_session *session = script->session; |
658 | struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
659 | |
660 | if (perf_event__process_fork(tool, event, sample, machine) < 0) |
661 | return -1; |
662 | |
663 | thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); |
664 | if (thread == NULL) { |
665 | pr_debug("problem processing FORK event, skipping it.\n"); |
666 | return -1; |
667 | } |
668 | |
669 | if (!evsel->attr.sample_id_all) { |
670 | sample->cpu = 0; |
671 | sample->time = event->fork.time; |
672 | sample->tid = event->fork.tid; |
673 | sample->pid = event->fork.pid; |
674 | } |
675 | print_sample_start(sample, thread, evsel); |
676 | perf_event__fprintf(event, stdout); |
677 | |
678 | return 0; |
679 | } |
680 | static int process_exit_event(struct perf_tool *tool, |
681 | union perf_event *event, |
682 | struct perf_sample *sample, |
683 | struct machine *machine) |
684 | { |
685 | struct thread *thread; |
686 | struct perf_script *script = container_of(tool, struct perf_script, tool); |
687 | struct perf_session *session = script->session; |
688 | struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
689 | |
690 | thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); |
691 | if (thread == NULL) { |
692 | pr_debug("problem processing EXIT event, skipping it.\n"); |
693 | return -1; |
694 | } |
695 | |
696 | if (!evsel->attr.sample_id_all) { |
697 | sample->cpu = 0; |
698 | sample->time = 0; |
699 | sample->tid = event->comm.tid; |
700 | sample->pid = event->comm.pid; |
701 | } |
702 | print_sample_start(sample, thread, evsel); |
703 | perf_event__fprintf(event, stdout); |
704 | |
705 | if (perf_event__process_exit(tool, event, sample, machine) < 0) |
706 | return -1; |
707 | |
708 | return 0; |
709 | } |
710 | |
711 | static int process_mmap_event(struct perf_tool *tool, |
712 | union perf_event *event, |
713 | struct perf_sample *sample, |
714 | struct machine *machine) |
715 | { |
716 | struct thread *thread; |
717 | struct perf_script *script = container_of(tool, struct perf_script, tool); |
718 | struct perf_session *session = script->session; |
719 | struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
720 | |
721 | if (perf_event__process_mmap(tool, event, sample, machine) < 0) |
722 | return -1; |
723 | |
724 | thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid); |
725 | if (thread == NULL) { |
726 | pr_debug("problem processing MMAP event, skipping it.\n"); |
727 | return -1; |
728 | } |
729 | |
730 | if (!evsel->attr.sample_id_all) { |
731 | sample->cpu = 0; |
732 | sample->time = 0; |
733 | sample->tid = event->mmap.tid; |
734 | sample->pid = event->mmap.pid; |
735 | } |
736 | print_sample_start(sample, thread, evsel); |
737 | perf_event__fprintf(event, stdout); |
738 | |
739 | return 0; |
740 | } |
741 | |
742 | static int process_mmap2_event(struct perf_tool *tool, |
743 | union perf_event *event, |
744 | struct perf_sample *sample, |
745 | struct machine *machine) |
746 | { |
747 | struct thread *thread; |
748 | struct perf_script *script = container_of(tool, struct perf_script, tool); |
749 | struct perf_session *session = script->session; |
750 | struct perf_evsel *evsel = perf_evlist__first(session->evlist); |
751 | |
752 | if (perf_event__process_mmap2(tool, event, sample, machine) < 0) |
753 | return -1; |
754 | |
755 | thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid); |
756 | if (thread == NULL) { |
757 | pr_debug("problem processing MMAP2 event, skipping it.\n"); |
758 | return -1; |
759 | } |
760 | |
761 | if (!evsel->attr.sample_id_all) { |
762 | sample->cpu = 0; |
763 | sample->time = 0; |
764 | sample->tid = event->mmap2.tid; |
765 | sample->pid = event->mmap2.pid; |
766 | } |
767 | print_sample_start(sample, thread, evsel); |
768 | perf_event__fprintf(event, stdout); |
769 | |
770 | return 0; |
771 | } |
772 | |
773 | static void sig_handler(int sig __maybe_unused) |
774 | { |
775 | session_done = 1; |
776 | } |
777 | |
778 | static int __cmd_script(struct perf_script *script) |
779 | { |
780 | int ret; |
781 | |
782 | signal(SIGINT, sig_handler); |
783 | |
784 | /* override event processing functions */ |
785 | if (script->show_task_events) { |
786 | script->tool.comm = process_comm_event; |
787 | script->tool.fork = process_fork_event; |
788 | script->tool.exit = process_exit_event; |
789 | } |
790 | if (script->show_mmap_events) { |
791 | script->tool.mmap = process_mmap_event; |
792 | script->tool.mmap2 = process_mmap2_event; |
793 | } |
794 | |
795 | ret = perf_session__process_events(script->session, &script->tool); |
796 | |
797 | if (debug_mode) |
798 | pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered); |
799 | |
800 | return ret; |
801 | } |
802 | |
803 | struct script_spec { |
804 | struct list_head node; |
805 | struct scripting_ops *ops; |
806 | char spec[0]; |
807 | }; |
808 | |
809 | static LIST_HEAD(script_specs); |
810 | |
811 | static struct script_spec *script_spec__new(const char *spec, |
812 | struct scripting_ops *ops) |
813 | { |
814 | struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); |
815 | |
816 | if (s != NULL) { |
817 | strcpy(s->spec, spec); |
818 | s->ops = ops; |
819 | } |
820 | |
821 | return s; |
822 | } |
823 | |
824 | static void script_spec__add(struct script_spec *s) |
825 | { |
826 | list_add_tail(&s->node, &script_specs); |
827 | } |
828 | |
829 | static struct script_spec *script_spec__find(const char *spec) |
830 | { |
831 | struct script_spec *s; |
832 | |
833 | list_for_each_entry(s, &script_specs, node) |
834 | if (strcasecmp(s->spec, spec) == 0) |
835 | return s; |
836 | return NULL; |
837 | } |
838 | |
839 | static struct script_spec *script_spec__findnew(const char *spec, |
840 | struct scripting_ops *ops) |
841 | { |
842 | struct script_spec *s = script_spec__find(spec); |
843 | |
844 | if (s) |
845 | return s; |
846 | |
847 | s = script_spec__new(spec, ops); |
848 | if (!s) |
849 | return NULL; |
850 | |
851 | script_spec__add(s); |
852 | |
853 | return s; |
854 | } |
855 | |
856 | int script_spec_register(const char *spec, struct scripting_ops *ops) |
857 | { |
858 | struct script_spec *s; |
859 | |
860 | s = script_spec__find(spec); |
861 | if (s) |
862 | return -1; |
863 | |
864 | s = script_spec__findnew(spec, ops); |
865 | if (!s) |
866 | return -1; |
867 | |
868 | return 0; |
869 | } |
870 | |
871 | static struct scripting_ops *script_spec__lookup(const char *spec) |
872 | { |
873 | struct script_spec *s = script_spec__find(spec); |
874 | if (!s) |
875 | return NULL; |
876 | |
877 | return s->ops; |
878 | } |
879 | |
880 | static void list_available_languages(void) |
881 | { |
882 | struct script_spec *s; |
883 | |
884 | fprintf(stderr, "\n"); |
885 | fprintf(stderr, "Scripting language extensions (used in " |
886 | "perf script -s [spec:]script.[spec]):\n\n"); |
887 | |
888 | list_for_each_entry(s, &script_specs, node) |
889 | fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); |
890 | |
891 | fprintf(stderr, "\n"); |
892 | } |
893 | |
894 | static int parse_scriptname(const struct option *opt __maybe_unused, |
895 | const char *str, int unset __maybe_unused) |
896 | { |
897 | char spec[PATH_MAX]; |
898 | const char *script, *ext; |
899 | int len; |
900 | |
901 | if (strcmp(str, "lang") == 0) { |
902 | list_available_languages(); |
903 | exit(0); |
904 | } |
905 | |
906 | script = strchr(str, ':'); |
907 | if (script) { |
908 | len = script - str; |
909 | if (len >= PATH_MAX) { |
910 | fprintf(stderr, "invalid language specifier"); |
911 | return -1; |
912 | } |
913 | strncpy(spec, str, len); |
914 | spec[len] = '\0'; |
915 | scripting_ops = script_spec__lookup(spec); |
916 | if (!scripting_ops) { |
917 | fprintf(stderr, "invalid language specifier"); |
918 | return -1; |
919 | } |
920 | script++; |
921 | } else { |
922 | script = str; |
923 | ext = strrchr(script, '.'); |
924 | if (!ext) { |
925 | fprintf(stderr, "invalid script extension"); |
926 | return -1; |
927 | } |
928 | scripting_ops = script_spec__lookup(++ext); |
929 | if (!scripting_ops) { |
930 | fprintf(stderr, "invalid script extension"); |
931 | return -1; |
932 | } |
933 | } |
934 | |
935 | script_name = strdup(script); |
936 | |
937 | return 0; |
938 | } |
939 | |
940 | static int parse_output_fields(const struct option *opt __maybe_unused, |
941 | const char *arg, int unset __maybe_unused) |
942 | { |
943 | char *tok; |
944 | int i, imax = ARRAY_SIZE(all_output_options); |
945 | int j; |
946 | int rc = 0; |
947 | char *str = strdup(arg); |
948 | int type = -1; |
949 | |
950 | if (!str) |
951 | return -ENOMEM; |
952 | |
953 | /* first word can state for which event type the user is specifying |
954 | * the fields. If no type exists, the specified fields apply to all |
955 | * event types found in the file minus the invalid fields for a type. |
956 | */ |
957 | tok = strchr(str, ':'); |
958 | if (tok) { |
959 | *tok = '\0'; |
960 | tok++; |
961 | if (!strcmp(str, "hw")) |
962 | type = PERF_TYPE_HARDWARE; |
963 | else if (!strcmp(str, "sw")) |
964 | type = PERF_TYPE_SOFTWARE; |
965 | else if (!strcmp(str, "trace")) |
966 | type = PERF_TYPE_TRACEPOINT; |
967 | else if (!strcmp(str, "raw")) |
968 | type = PERF_TYPE_RAW; |
969 | else { |
970 | fprintf(stderr, "Invalid event type in field string.\n"); |
971 | rc = -EINVAL; |
972 | goto out; |
973 | } |
974 | |
975 | if (output[type].user_set) |
976 | pr_warning("Overriding previous field request for %s events.\n", |
977 | event_type(type)); |
978 | |
979 | output[type].fields = 0; |
980 | output[type].user_set = true; |
981 | output[type].wildcard_set = false; |
982 | |
983 | } else { |
984 | tok = str; |
985 | if (strlen(str) == 0) { |
986 | fprintf(stderr, |
987 | "Cannot set fields to 'none' for all event types.\n"); |
988 | rc = -EINVAL; |
989 | goto out; |
990 | } |
991 | |
992 | if (output_set_by_user()) |
993 | pr_warning("Overriding previous field request for all events.\n"); |
994 | |
995 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
996 | output[j].fields = 0; |
997 | output[j].user_set = true; |
998 | output[j].wildcard_set = true; |
999 | } |
1000 | } |
1001 | |
1002 | tok = strtok(tok, ","); |
1003 | while (tok) { |
1004 | for (i = 0; i < imax; ++i) { |
1005 | if (strcmp(tok, all_output_options[i].str) == 0) |
1006 | break; |
1007 | } |
1008 | if (i == imax) { |
1009 | fprintf(stderr, "Invalid field requested.\n"); |
1010 | rc = -EINVAL; |
1011 | goto out; |
1012 | } |
1013 | |
1014 | if (type == -1) { |
1015 | /* add user option to all events types for |
1016 | * which it is valid |
1017 | */ |
1018 | for (j = 0; j < PERF_TYPE_MAX; ++j) { |
1019 | if (output[j].invalid_fields & all_output_options[i].field) { |
1020 | pr_warning("\'%s\' not valid for %s events. Ignoring.\n", |
1021 | all_output_options[i].str, event_type(j)); |
1022 | } else |
1023 | output[j].fields |= all_output_options[i].field; |
1024 | } |
1025 | } else { |
1026 | if (output[type].invalid_fields & all_output_options[i].field) { |
1027 | fprintf(stderr, "\'%s\' not valid for %s events.\n", |
1028 | all_output_options[i].str, event_type(type)); |
1029 | |
1030 | rc = -EINVAL; |
1031 | goto out; |
1032 | } |
1033 | output[type].fields |= all_output_options[i].field; |
1034 | } |
1035 | |
1036 | tok = strtok(NULL, ","); |
1037 | } |
1038 | |
1039 | if (type >= 0) { |
1040 | if (output[type].fields == 0) { |
1041 | pr_debug("No fields requested for %s type. " |
1042 | "Events will not be displayed.\n", event_type(type)); |
1043 | } |
1044 | } |
1045 | |
1046 | out: |
1047 | free(str); |
1048 | return rc; |
1049 | } |
1050 | |
1051 | /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */ |
1052 | static int is_directory(const char *base_path, const struct dirent *dent) |
1053 | { |
1054 | char path[PATH_MAX]; |
1055 | struct stat st; |
1056 | |
1057 | sprintf(path, "%s/%s", base_path, dent->d_name); |
1058 | if (stat(path, &st)) |
1059 | return 0; |
1060 | |
1061 | return S_ISDIR(st.st_mode); |
1062 | } |
1063 | |
1064 | #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\ |
1065 | while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ |
1066 | lang_next) \ |
1067 | if ((lang_dirent.d_type == DT_DIR || \ |
1068 | (lang_dirent.d_type == DT_UNKNOWN && \ |
1069 | is_directory(scripts_path, &lang_dirent))) && \ |
1070 | (strcmp(lang_dirent.d_name, ".")) && \ |
1071 | (strcmp(lang_dirent.d_name, ".."))) |
1072 | |
1073 | #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\ |
1074 | while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ |
1075 | script_next) \ |
1076 | if (script_dirent.d_type != DT_DIR && \ |
1077 | (script_dirent.d_type != DT_UNKNOWN || \ |
1078 | !is_directory(lang_path, &script_dirent))) |
1079 | |
1080 | |
1081 | #define RECORD_SUFFIX "-record" |
1082 | #define REPORT_SUFFIX "-report" |
1083 | |
1084 | struct script_desc { |
1085 | struct list_head node; |
1086 | char *name; |
1087 | char *half_liner; |
1088 | char *args; |
1089 | }; |
1090 | |
1091 | static LIST_HEAD(script_descs); |
1092 | |
1093 | static struct script_desc *script_desc__new(const char *name) |
1094 | { |
1095 | struct script_desc *s = zalloc(sizeof(*s)); |
1096 | |
1097 | if (s != NULL && name) |
1098 | s->name = strdup(name); |
1099 | |
1100 | return s; |
1101 | } |
1102 | |
1103 | static void script_desc__delete(struct script_desc *s) |
1104 | { |
1105 | zfree(&s->name); |
1106 | zfree(&s->half_liner); |
1107 | zfree(&s->args); |
1108 | free(s); |
1109 | } |
1110 | |
1111 | static void script_desc__add(struct script_desc *s) |
1112 | { |
1113 | list_add_tail(&s->node, &script_descs); |
1114 | } |
1115 | |
1116 | static struct script_desc *script_desc__find(const char *name) |
1117 | { |
1118 | struct script_desc *s; |
1119 | |
1120 | list_for_each_entry(s, &script_descs, node) |
1121 | if (strcasecmp(s->name, name) == 0) |
1122 | return s; |
1123 | return NULL; |
1124 | } |
1125 | |
1126 | static struct script_desc *script_desc__findnew(const char *name) |
1127 | { |
1128 | struct script_desc *s = script_desc__find(name); |
1129 | |
1130 | if (s) |
1131 | return s; |
1132 | |
1133 | s = script_desc__new(name); |
1134 | if (!s) |
1135 | goto out_delete_desc; |
1136 | |
1137 | script_desc__add(s); |
1138 | |
1139 | return s; |
1140 | |
1141 | out_delete_desc: |
1142 | script_desc__delete(s); |
1143 | |
1144 | return NULL; |
1145 | } |
1146 | |
1147 | static const char *ends_with(const char *str, const char *suffix) |
1148 | { |
1149 | size_t suffix_len = strlen(suffix); |
1150 | const char *p = str; |
1151 | |
1152 | if (strlen(str) > suffix_len) { |
1153 | p = str + strlen(str) - suffix_len; |
1154 | if (!strncmp(p, suffix, suffix_len)) |
1155 | return p; |
1156 | } |
1157 | |
1158 | return NULL; |
1159 | } |
1160 | |
1161 | static int read_script_info(struct script_desc *desc, const char *filename) |
1162 | { |
1163 | char line[BUFSIZ], *p; |
1164 | FILE *fp; |
1165 | |
1166 | fp = fopen(filename, "r"); |
1167 | if (!fp) |
1168 | return -1; |
1169 | |
1170 | while (fgets(line, sizeof(line), fp)) { |
1171 | p = ltrim(line); |
1172 | if (strlen(p) == 0) |
1173 | continue; |
1174 | if (*p != '#') |
1175 | continue; |
1176 | p++; |
1177 | if (strlen(p) && *p == '!') |
1178 | continue; |
1179 | |
1180 | p = ltrim(p); |
1181 | if (strlen(p) && p[strlen(p) - 1] == '\n') |
1182 | p[strlen(p) - 1] = '\0'; |
1183 | |
1184 | if (!strncmp(p, "description:", strlen("description:"))) { |
1185 | p += strlen("description:"); |
1186 | desc->half_liner = strdup(ltrim(p)); |
1187 | continue; |
1188 | } |
1189 | |
1190 | if (!strncmp(p, "args:", strlen("args:"))) { |
1191 | p += strlen("args:"); |
1192 | desc->args = strdup(ltrim(p)); |
1193 | continue; |
1194 | } |
1195 | } |
1196 | |
1197 | fclose(fp); |
1198 | |
1199 | return 0; |
1200 | } |
1201 | |
1202 | static char *get_script_root(struct dirent *script_dirent, const char *suffix) |
1203 | { |
1204 | char *script_root, *str; |
1205 | |
1206 | script_root = strdup(script_dirent->d_name); |
1207 | if (!script_root) |
1208 | return NULL; |
1209 | |
1210 | str = (char *)ends_with(script_root, suffix); |
1211 | if (!str) { |
1212 | free(script_root); |
1213 | return NULL; |
1214 | } |
1215 | |
1216 | *str = '\0'; |
1217 | return script_root; |
1218 | } |
1219 | |
1220 | static int list_available_scripts(const struct option *opt __maybe_unused, |
1221 | const char *s __maybe_unused, |
1222 | int unset __maybe_unused) |
1223 | { |
1224 | struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
1225 | char scripts_path[MAXPATHLEN]; |
1226 | DIR *scripts_dir, *lang_dir; |
1227 | char script_path[MAXPATHLEN]; |
1228 | char lang_path[MAXPATHLEN]; |
1229 | struct script_desc *desc; |
1230 | char first_half[BUFSIZ]; |
1231 | char *script_root; |
1232 | |
1233 | snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
1234 | |
1235 | scripts_dir = opendir(scripts_path); |
1236 | if (!scripts_dir) |
1237 | return -1; |
1238 | |
1239 | for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
1240 | snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, |
1241 | lang_dirent.d_name); |
1242 | lang_dir = opendir(lang_path); |
1243 | if (!lang_dir) |
1244 | continue; |
1245 | |
1246 | for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
1247 | script_root = get_script_root(&script_dirent, REPORT_SUFFIX); |
1248 | if (script_root) { |
1249 | desc = script_desc__findnew(script_root); |
1250 | snprintf(script_path, MAXPATHLEN, "%s/%s", |
1251 | lang_path, script_dirent.d_name); |
1252 | read_script_info(desc, script_path); |
1253 | free(script_root); |
1254 | } |
1255 | } |
1256 | } |
1257 | |
1258 | fprintf(stdout, "List of available trace scripts:\n"); |
1259 | list_for_each_entry(desc, &script_descs, node) { |
1260 | sprintf(first_half, "%s %s", desc->name, |
1261 | desc->args ? desc->args : ""); |
1262 | fprintf(stdout, " %-36s %s\n", first_half, |
1263 | desc->half_liner ? desc->half_liner : ""); |
1264 | } |
1265 | |
1266 | exit(0); |
1267 | } |
1268 | |
1269 | /* |
1270 | * Some scripts specify the required events in their "xxx-record" file, |
1271 | * this function will check if the events in perf.data match those |
1272 | * mentioned in the "xxx-record". |
1273 | * |
1274 | * Fixme: All existing "xxx-record" are all in good formats "-e event ", |
1275 | * which is covered well now. And new parsing code should be added to |
1276 | * cover the future complexing formats like event groups etc. |
1277 | */ |
1278 | static int check_ev_match(char *dir_name, char *scriptname, |
1279 | struct perf_session *session) |
1280 | { |
1281 | char filename[MAXPATHLEN], evname[128]; |
1282 | char line[BUFSIZ], *p; |
1283 | struct perf_evsel *pos; |
1284 | int match, len; |
1285 | FILE *fp; |
1286 | |
1287 | sprintf(filename, "%s/bin/%s-record", dir_name, scriptname); |
1288 | |
1289 | fp = fopen(filename, "r"); |
1290 | if (!fp) |
1291 | return -1; |
1292 | |
1293 | while (fgets(line, sizeof(line), fp)) { |
1294 | p = ltrim(line); |
1295 | if (*p == '#') |
1296 | continue; |
1297 | |
1298 | while (strlen(p)) { |
1299 | p = strstr(p, "-e"); |
1300 | if (!p) |
1301 | break; |
1302 | |
1303 | p += 2; |
1304 | p = ltrim(p); |
1305 | len = strcspn(p, " \t"); |
1306 | if (!len) |
1307 | break; |
1308 | |
1309 | snprintf(evname, len + 1, "%s", p); |
1310 | |
1311 | match = 0; |
1312 | evlist__for_each(session->evlist, pos) { |
1313 | if (!strcmp(perf_evsel__name(pos), evname)) { |
1314 | match = 1; |
1315 | break; |
1316 | } |
1317 | } |
1318 | |
1319 | if (!match) { |
1320 | fclose(fp); |
1321 | return -1; |
1322 | } |
1323 | } |
1324 | } |
1325 | |
1326 | fclose(fp); |
1327 | return 0; |
1328 | } |
1329 | |
1330 | /* |
1331 | * Return -1 if none is found, otherwise the actual scripts number. |
1332 | * |
1333 | * Currently the only user of this function is the script browser, which |
1334 | * will list all statically runnable scripts, select one, execute it and |
1335 | * show the output in a perf browser. |
1336 | */ |
1337 | int find_scripts(char **scripts_array, char **scripts_path_array) |
1338 | { |
1339 | struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
1340 | char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN]; |
1341 | DIR *scripts_dir, *lang_dir; |
1342 | struct perf_session *session; |
1343 | struct perf_data_file file = { |
1344 | .path = input_name, |
1345 | .mode = PERF_DATA_MODE_READ, |
1346 | }; |
1347 | char *temp; |
1348 | int i = 0; |
1349 | |
1350 | session = perf_session__new(&file, false, NULL); |
1351 | if (!session) |
1352 | return -1; |
1353 | |
1354 | snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
1355 | |
1356 | scripts_dir = opendir(scripts_path); |
1357 | if (!scripts_dir) { |
1358 | perf_session__delete(session); |
1359 | return -1; |
1360 | } |
1361 | |
1362 | for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
1363 | snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path, |
1364 | lang_dirent.d_name); |
1365 | #ifdef NO_LIBPERL |
1366 | if (strstr(lang_path, "perl")) |
1367 | continue; |
1368 | #endif |
1369 | #ifdef NO_LIBPYTHON |
1370 | if (strstr(lang_path, "python")) |
1371 | continue; |
1372 | #endif |
1373 | |
1374 | lang_dir = opendir(lang_path); |
1375 | if (!lang_dir) |
1376 | continue; |
1377 | |
1378 | for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
1379 | /* Skip those real time scripts: xxxtop.p[yl] */ |
1380 | if (strstr(script_dirent.d_name, "top.")) |
1381 | continue; |
1382 | sprintf(scripts_path_array[i], "%s/%s", lang_path, |
1383 | script_dirent.d_name); |
1384 | temp = strchr(script_dirent.d_name, '.'); |
1385 | snprintf(scripts_array[i], |
1386 | (temp - script_dirent.d_name) + 1, |
1387 | "%s", script_dirent.d_name); |
1388 | |
1389 | if (check_ev_match(lang_path, |
1390 | scripts_array[i], session)) |
1391 | continue; |
1392 | |
1393 | i++; |
1394 | } |
1395 | closedir(lang_dir); |
1396 | } |
1397 | |
1398 | closedir(scripts_dir); |
1399 | perf_session__delete(session); |
1400 | return i; |
1401 | } |
1402 | |
1403 | static char *get_script_path(const char *script_root, const char *suffix) |
1404 | { |
1405 | struct dirent *script_next, *lang_next, script_dirent, lang_dirent; |
1406 | char scripts_path[MAXPATHLEN]; |
1407 | char script_path[MAXPATHLEN]; |
1408 | DIR *scripts_dir, *lang_dir; |
1409 | char lang_path[MAXPATHLEN]; |
1410 | char *__script_root; |
1411 | |
1412 | snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); |
1413 | |
1414 | scripts_dir = opendir(scripts_path); |
1415 | if (!scripts_dir) |
1416 | return NULL; |
1417 | |
1418 | for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { |
1419 | snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, |
1420 | lang_dirent.d_name); |
1421 | lang_dir = opendir(lang_path); |
1422 | if (!lang_dir) |
1423 | continue; |
1424 | |
1425 | for_each_script(lang_path, lang_dir, script_dirent, script_next) { |
1426 | __script_root = get_script_root(&script_dirent, suffix); |
1427 | if (__script_root && !strcmp(script_root, __script_root)) { |
1428 | free(__script_root); |
1429 | closedir(lang_dir); |
1430 | closedir(scripts_dir); |
1431 | snprintf(script_path, MAXPATHLEN, "%s/%s", |
1432 | lang_path, script_dirent.d_name); |
1433 | return strdup(script_path); |
1434 | } |
1435 | free(__script_root); |
1436 | } |
1437 | closedir(lang_dir); |
1438 | } |
1439 | closedir(scripts_dir); |
1440 | |
1441 | return NULL; |
1442 | } |
1443 | |
1444 | static bool is_top_script(const char *script_path) |
1445 | { |
1446 | return ends_with(script_path, "top") == NULL ? false : true; |
1447 | } |
1448 | |
1449 | static int has_required_arg(char *script_path) |
1450 | { |
1451 | struct script_desc *desc; |
1452 | int n_args = 0; |
1453 | char *p; |
1454 | |
1455 | desc = script_desc__new(NULL); |
1456 | |
1457 | if (read_script_info(desc, script_path)) |
1458 | goto out; |
1459 | |
1460 | if (!desc->args) |
1461 | goto out; |
1462 | |
1463 | for (p = desc->args; *p; p++) |
1464 | if (*p == '<') |
1465 | n_args++; |
1466 | out: |
1467 | script_desc__delete(desc); |
1468 | |
1469 | return n_args; |
1470 | } |
1471 | |
1472 | static int have_cmd(int argc, const char **argv) |
1473 | { |
1474 | char **__argv = malloc(sizeof(const char *) * argc); |
1475 | |
1476 | if (!__argv) { |
1477 | pr_err("malloc failed\n"); |
1478 | return -1; |
1479 | } |
1480 | |
1481 | memcpy(__argv, argv, sizeof(const char *) * argc); |
1482 | argc = parse_options(argc, (const char **)__argv, record_options, |
1483 | NULL, PARSE_OPT_STOP_AT_NON_OPTION); |
1484 | free(__argv); |
1485 | |
1486 | system_wide = (argc == 0); |
1487 | |
1488 | return 0; |
1489 | } |
1490 | |
1491 | int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) |
1492 | { |
1493 | bool show_full_info = false; |
1494 | bool header = false; |
1495 | bool header_only = false; |
1496 | char *rec_script_path = NULL; |
1497 | char *rep_script_path = NULL; |
1498 | struct perf_session *session; |
1499 | char *script_path = NULL; |
1500 | const char **__argv; |
1501 | int i, j, err; |
1502 | struct perf_script script = { |
1503 | .tool = { |
1504 | .sample = process_sample_event, |
1505 | .mmap = perf_event__process_mmap, |
1506 | .mmap2 = perf_event__process_mmap2, |
1507 | .comm = perf_event__process_comm, |
1508 | .exit = perf_event__process_exit, |
1509 | .fork = perf_event__process_fork, |
1510 | .attr = process_attr, |
1511 | .tracing_data = perf_event__process_tracing_data, |
1512 | .build_id = perf_event__process_build_id, |
1513 | .ordered_samples = true, |
1514 | .ordering_requires_timestamps = true, |
1515 | }, |
1516 | }; |
1517 | const struct option options[] = { |
1518 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
1519 | "dump raw trace in ASCII"), |
1520 | OPT_INCR('v', "verbose", &verbose, |
1521 | "be more verbose (show symbol address, etc)"), |
1522 | OPT_BOOLEAN('L', "Latency", &latency_format, |
1523 | "show latency attributes (irqs/preemption disabled, etc)"), |
1524 | OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", |
1525 | list_available_scripts), |
1526 | OPT_CALLBACK('s', "script", NULL, "name", |
1527 | "script file name (lang:script name, script name, or *)", |
1528 | parse_scriptname), |
1529 | OPT_STRING('g', "gen-script", &generate_script_lang, "lang", |
1530 | "generate perf-script.xx script in specified language"), |
1531 | OPT_STRING('i', "input", &input_name, "file", "input file name"), |
1532 | OPT_BOOLEAN('d', "debug-mode", &debug_mode, |
1533 | "do various checks like samples ordering and lost events"), |
1534 | OPT_BOOLEAN(0, "header", &header, "Show data header."), |
1535 | OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."), |
1536 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1537 | "file", "vmlinux pathname"), |
1538 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
1539 | "file", "kallsyms pathname"), |
1540 | OPT_BOOLEAN('G', "hide-call-graph", &no_callchain, |
1541 | "When printing symbols do not display call chain"), |
1542 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
1543 | "Look for files with symbols relative to this directory"), |
1544 | OPT_CALLBACK('f', "fields", NULL, "str", |
1545 | "comma separated output fields prepend with 'type:'. " |
1546 | "Valid types: hw,sw,trace,raw. " |
1547 | "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," |
1548 | "addr,symoff", parse_output_fields), |
1549 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
1550 | "system-wide collection from all CPUs"), |
1551 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", |
1552 | "only consider these symbols"), |
1553 | OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), |
1554 | OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", |
1555 | "only display events for these comms"), |
1556 | OPT_BOOLEAN('I', "show-info", &show_full_info, |
1557 | "display extended information from perf.data file"), |
1558 | OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, |
1559 | "Show the path of [kernel.kallsyms]"), |
1560 | OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events, |
1561 | "Show the fork/comm/exit events"), |
1562 | OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, |
1563 | "Show the mmap events"), |
1564 | OPT_END() |
1565 | }; |
1566 | const char * const script_usage[] = { |
1567 | "perf script [<options>]", |
1568 | "perf script [<options>] record <script> [<record-options>] <command>", |
1569 | "perf script [<options>] report <script> [script-args]", |
1570 | "perf script [<options>] <script> [<record-options>] <command>", |
1571 | "perf script [<options>] <top-script> [script-args]", |
1572 | NULL |
1573 | }; |
1574 | struct perf_data_file file = { |
1575 | .mode = PERF_DATA_MODE_READ, |
1576 | }; |
1577 | |
1578 | setup_scripting(); |
1579 | |
1580 | argc = parse_options(argc, argv, options, script_usage, |
1581 | PARSE_OPT_STOP_AT_NON_OPTION); |
1582 | |
1583 | file.path = input_name; |
1584 | |
1585 | if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) { |
1586 | rec_script_path = get_script_path(argv[1], RECORD_SUFFIX); |
1587 | if (!rec_script_path) |
1588 | return cmd_record(argc, argv, NULL); |
1589 | } |
1590 | |
1591 | if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) { |
1592 | rep_script_path = get_script_path(argv[1], REPORT_SUFFIX); |
1593 | if (!rep_script_path) { |
1594 | fprintf(stderr, |
1595 | "Please specify a valid report script" |
1596 | "(see 'perf script -l' for listing)\n"); |
1597 | return -1; |
1598 | } |
1599 | } |
1600 | |
1601 | /* make sure PERF_EXEC_PATH is set for scripts */ |
1602 | perf_set_argv_exec_path(perf_exec_path()); |
1603 | |
1604 | if (argc && !script_name && !rec_script_path && !rep_script_path) { |
1605 | int live_pipe[2]; |
1606 | int rep_args; |
1607 | pid_t pid; |
1608 | |
1609 | rec_script_path = get_script_path(argv[0], RECORD_SUFFIX); |
1610 | rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); |
1611 | |
1612 | if (!rec_script_path && !rep_script_path) { |
1613 | fprintf(stderr, " Couldn't find script %s\n\n See perf" |
1614 | " script -l for available scripts.\n", argv[0]); |
1615 | usage_with_options(script_usage, options); |
1616 | } |
1617 | |
1618 | if (is_top_script(argv[0])) { |
1619 | rep_args = argc - 1; |
1620 | } else { |
1621 | int rec_args; |
1622 | |
1623 | rep_args = has_required_arg(rep_script_path); |
1624 | rec_args = (argc - 1) - rep_args; |
1625 | if (rec_args < 0) { |
1626 | fprintf(stderr, " %s script requires options." |
1627 | "\n\n See perf script -l for available " |
1628 | "scripts and options.\n", argv[0]); |
1629 | usage_with_options(script_usage, options); |
1630 | } |
1631 | } |
1632 | |
1633 | if (pipe(live_pipe) < 0) { |
1634 | perror("failed to create pipe"); |
1635 | return -1; |
1636 | } |
1637 | |
1638 | pid = fork(); |
1639 | if (pid < 0) { |
1640 | perror("failed to fork"); |
1641 | return -1; |
1642 | } |
1643 | |
1644 | if (!pid) { |
1645 | j = 0; |
1646 | |
1647 | dup2(live_pipe[1], 1); |
1648 | close(live_pipe[0]); |
1649 | |
1650 | if (is_top_script(argv[0])) { |
1651 | system_wide = true; |
1652 | } else if (!system_wide) { |
1653 | if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) { |
1654 | err = -1; |
1655 | goto out; |
1656 | } |
1657 | } |
1658 | |
1659 | __argv = malloc((argc + 6) * sizeof(const char *)); |
1660 | if (!__argv) { |
1661 | pr_err("malloc failed\n"); |
1662 | err = -ENOMEM; |
1663 | goto out; |
1664 | } |
1665 | |
1666 | __argv[j++] = "/bin/sh"; |
1667 | __argv[j++] = rec_script_path; |
1668 | if (system_wide) |
1669 | __argv[j++] = "-a"; |
1670 | __argv[j++] = "-q"; |
1671 | __argv[j++] = "-o"; |
1672 | __argv[j++] = "-"; |
1673 | for (i = rep_args + 1; i < argc; i++) |
1674 | __argv[j++] = argv[i]; |
1675 | __argv[j++] = NULL; |
1676 | |
1677 | execvp("/bin/sh", (char **)__argv); |
1678 | free(__argv); |
1679 | exit(-1); |
1680 | } |
1681 | |
1682 | dup2(live_pipe[0], 0); |
1683 | close(live_pipe[1]); |
1684 | |
1685 | __argv = malloc((argc + 4) * sizeof(const char *)); |
1686 | if (!__argv) { |
1687 | pr_err("malloc failed\n"); |
1688 | err = -ENOMEM; |
1689 | goto out; |
1690 | } |
1691 | |
1692 | j = 0; |
1693 | __argv[j++] = "/bin/sh"; |
1694 | __argv[j++] = rep_script_path; |
1695 | for (i = 1; i < rep_args + 1; i++) |
1696 | __argv[j++] = argv[i]; |
1697 | __argv[j++] = "-i"; |
1698 | __argv[j++] = "-"; |
1699 | __argv[j++] = NULL; |
1700 | |
1701 | execvp("/bin/sh", (char **)__argv); |
1702 | free(__argv); |
1703 | exit(-1); |
1704 | } |
1705 | |
1706 | if (rec_script_path) |
1707 | script_path = rec_script_path; |
1708 | if (rep_script_path) |
1709 | script_path = rep_script_path; |
1710 | |
1711 | if (script_path) { |
1712 | j = 0; |
1713 | |
1714 | if (!rec_script_path) |
1715 | system_wide = false; |
1716 | else if (!system_wide) { |
1717 | if (have_cmd(argc - 1, &argv[1]) != 0) { |
1718 | err = -1; |
1719 | goto out; |
1720 | } |
1721 | } |
1722 | |
1723 | __argv = malloc((argc + 2) * sizeof(const char *)); |
1724 | if (!__argv) { |
1725 | pr_err("malloc failed\n"); |
1726 | err = -ENOMEM; |
1727 | goto out; |
1728 | } |
1729 | |
1730 | __argv[j++] = "/bin/sh"; |
1731 | __argv[j++] = script_path; |
1732 | if (system_wide) |
1733 | __argv[j++] = "-a"; |
1734 | for (i = 2; i < argc; i++) |
1735 | __argv[j++] = argv[i]; |
1736 | __argv[j++] = NULL; |
1737 | |
1738 | execvp("/bin/sh", (char **)__argv); |
1739 | free(__argv); |
1740 | exit(-1); |
1741 | } |
1742 | |
1743 | if (symbol__init() < 0) |
1744 | return -1; |
1745 | if (!script_name) |
1746 | setup_pager(); |
1747 | |
1748 | session = perf_session__new(&file, false, &script.tool); |
1749 | if (session == NULL) |
1750 | return -ENOMEM; |
1751 | |
1752 | if (header || header_only) { |
1753 | perf_session__fprintf_info(session, stdout, show_full_info); |
1754 | if (header_only) |
1755 | return 0; |
1756 | } |
1757 | |
1758 | script.session = session; |
1759 | |
1760 | if (cpu_list) { |
1761 | if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap)) |
1762 | return -1; |
1763 | } |
1764 | |
1765 | if (!no_callchain) |
1766 | symbol_conf.use_callchain = true; |
1767 | else |
1768 | symbol_conf.use_callchain = false; |
1769 | |
1770 | if (generate_script_lang) { |
1771 | struct stat perf_stat; |
1772 | int input; |
1773 | |
1774 | if (output_set_by_user()) { |
1775 | fprintf(stderr, |
1776 | "custom fields not supported for generated scripts"); |
1777 | return -1; |
1778 | } |
1779 | |
1780 | input = open(file.path, O_RDONLY); /* input_name */ |
1781 | if (input < 0) { |
1782 | perror("failed to open file"); |
1783 | return -1; |
1784 | } |
1785 | |
1786 | err = fstat(input, &perf_stat); |
1787 | if (err < 0) { |
1788 | perror("failed to stat file"); |
1789 | return -1; |
1790 | } |
1791 | |
1792 | if (!perf_stat.st_size) { |
1793 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
1794 | return 0; |
1795 | } |
1796 | |
1797 | scripting_ops = script_spec__lookup(generate_script_lang); |
1798 | if (!scripting_ops) { |
1799 | fprintf(stderr, "invalid language specifier"); |
1800 | return -1; |
1801 | } |
1802 | |
1803 | err = scripting_ops->generate_script(session->tevent.pevent, |
1804 | "perf-script"); |
1805 | goto out; |
1806 | } |
1807 | |
1808 | if (script_name) { |
1809 | err = scripting_ops->start_script(script_name, argc, argv); |
1810 | if (err) |
1811 | goto out; |
1812 | pr_debug("perf script started with script %s\n\n", script_name); |
1813 | } |
1814 | |
1815 | |
1816 | err = perf_session__check_output_opt(session); |
1817 | if (err < 0) |
1818 | goto out; |
1819 | |
1820 | err = __cmd_script(&script); |
1821 | |
1822 | perf_session__delete(session); |
1823 | cleanup_scripting(); |
1824 | out: |
1825 | return err; |
1826 | } |
1827 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
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jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9