Commit | Line | Data |
---|---|---|
abaff32a | 1 | /* |
bf9e1876 IM |
2 | * builtin-record.c |
3 | * | |
4 | * Builtin record command: Record the profile of a workload | |
5 | * (or a CPU, or a PID) into the perf.data output file - for | |
6 | * later analysis via perf report. | |
abaff32a | 7 | */ |
16f762a2 | 8 | #include "builtin.h" |
bf9e1876 IM |
9 | |
10 | #include "perf.h" | |
11 | ||
6122e4e4 | 12 | #include "util/build-id.h" |
6eda5838 | 13 | #include "util/util.h" |
4b6ab94e | 14 | #include <subcmd/parse-options.h> |
8ad8db37 | 15 | #include "util/parse-events.h" |
6eda5838 | 16 | |
8f651eae | 17 | #include "util/callchain.h" |
f14d5707 | 18 | #include "util/cgroup.h" |
7c6a1c65 | 19 | #include "util/header.h" |
66e274f3 | 20 | #include "util/event.h" |
361c99a6 | 21 | #include "util/evlist.h" |
69aad6f1 | 22 | #include "util/evsel.h" |
8f28827a | 23 | #include "util/debug.h" |
94c744b6 | 24 | #include "util/session.h" |
45694aa7 | 25 | #include "util/tool.h" |
8d06367f | 26 | #include "util/symbol.h" |
a12b51c4 | 27 | #include "util/cpumap.h" |
fd78260b | 28 | #include "util/thread_map.h" |
f5fc1412 | 29 | #include "util/data.h" |
bcc84ec6 | 30 | #include "util/perf_regs.h" |
ef149c25 | 31 | #include "util/auxtrace.h" |
46bc29b9 | 32 | #include "util/tsc.h" |
f00898f4 | 33 | #include "util/parse-branch-options.h" |
bcc84ec6 | 34 | #include "util/parse-regs-options.h" |
71dc2326 | 35 | #include "util/llvm-utils.h" |
8690a2a7 | 36 | #include "util/bpf-loader.h" |
5f9cf599 | 37 | #include "util/trigger.h" |
d8871ea7 | 38 | #include "asm/bug.h" |
7c6a1c65 | 39 | |
97124d5e | 40 | #include <unistd.h> |
de9ac07b | 41 | #include <sched.h> |
a41794cd | 42 | #include <sys/mman.h> |
2d11c650 | 43 | #include <asm/bug.h> |
de9ac07b | 44 | |
78da39fa | 45 | |
8c6f45a7 | 46 | struct record { |
45694aa7 | 47 | struct perf_tool tool; |
b4006796 | 48 | struct record_opts opts; |
d20deb64 | 49 | u64 bytes_written; |
f5fc1412 | 50 | struct perf_data_file file; |
ef149c25 | 51 | struct auxtrace_record *itr; |
d20deb64 ACM |
52 | struct perf_evlist *evlist; |
53 | struct perf_session *session; | |
54 | const char *progname; | |
d20deb64 | 55 | int realtime_prio; |
d20deb64 | 56 | bool no_buildid; |
d2db9a98 | 57 | bool no_buildid_set; |
d20deb64 | 58 | bool no_buildid_cache; |
d2db9a98 | 59 | bool no_buildid_cache_set; |
6156681b | 60 | bool buildid_all; |
ecfd7a9c | 61 | bool timestamp_filename; |
3c1cb7e3 | 62 | bool switch_output; |
9f065194 | 63 | unsigned long long samples; |
0f82ebc4 | 64 | }; |
a21ca2ca | 65 | |
8c6f45a7 | 66 | static int record__write(struct record *rec, void *bf, size_t size) |
f5970550 | 67 | { |
cf8b2e69 | 68 | if (perf_data_file__write(rec->session->file, bf, size) < 0) { |
50a9b868 JO |
69 | pr_err("failed to write perf data, error: %m\n"); |
70 | return -1; | |
f5970550 | 71 | } |
8d3eca20 | 72 | |
cf8b2e69 | 73 | rec->bytes_written += size; |
8d3eca20 | 74 | return 0; |
f5970550 PZ |
75 | } |
76 | ||
45694aa7 | 77 | static int process_synthesized_event(struct perf_tool *tool, |
d20deb64 | 78 | union perf_event *event, |
1d037ca1 IT |
79 | struct perf_sample *sample __maybe_unused, |
80 | struct machine *machine __maybe_unused) | |
234fbbf5 | 81 | { |
8c6f45a7 ACM |
82 | struct record *rec = container_of(tool, struct record, tool); |
83 | return record__write(rec, event, event->header.size); | |
234fbbf5 ACM |
84 | } |
85 | ||
3a62a7b8 WN |
86 | static int |
87 | backward_rb_find_range(void *buf, int mask, u64 head, u64 *start, u64 *end) | |
88 | { | |
89 | struct perf_event_header *pheader; | |
90 | u64 evt_head = head; | |
91 | int size = mask + 1; | |
92 | ||
93 | pr_debug2("backward_rb_find_range: buf=%p, head=%"PRIx64"\n", buf, head); | |
94 | pheader = (struct perf_event_header *)(buf + (head & mask)); | |
95 | *start = head; | |
96 | while (true) { | |
97 | if (evt_head - head >= (unsigned int)size) { | |
98 | pr_debug("Finshed reading backward ring buffer: rewind\n"); | |
99 | if (evt_head - head > (unsigned int)size) | |
100 | evt_head -= pheader->size; | |
101 | *end = evt_head; | |
102 | return 0; | |
103 | } | |
104 | ||
105 | pheader = (struct perf_event_header *)(buf + (evt_head & mask)); | |
106 | ||
107 | if (pheader->size == 0) { | |
108 | pr_debug("Finshed reading backward ring buffer: get start\n"); | |
109 | *end = evt_head; | |
110 | return 0; | |
111 | } | |
112 | ||
113 | evt_head += pheader->size; | |
114 | pr_debug3("move evt_head: %"PRIx64"\n", evt_head); | |
115 | } | |
116 | WARN_ONCE(1, "Shouldn't get here\n"); | |
117 | return -1; | |
118 | } | |
119 | ||
120 | static int | |
121 | rb_find_range(struct perf_evlist *evlist, | |
122 | void *data, int mask, u64 head, u64 old, | |
123 | u64 *start, u64 *end) | |
124 | { | |
125 | if (!evlist->backward) { | |
126 | *start = old; | |
127 | *end = head; | |
128 | return 0; | |
129 | } | |
130 | ||
131 | return backward_rb_find_range(data, mask, head, start, end); | |
132 | } | |
133 | ||
e5685730 | 134 | static int record__mmap_read(struct record *rec, int idx) |
de9ac07b | 135 | { |
e5685730 | 136 | struct perf_mmap *md = &rec->evlist->mmap[idx]; |
7b8283b5 DA |
137 | u64 head = perf_mmap__read_head(md); |
138 | u64 old = md->prev; | |
09fa4f40 | 139 | u64 end = head, start = old; |
918512b4 | 140 | unsigned char *data = md->base + page_size; |
de9ac07b PZ |
141 | unsigned long size; |
142 | void *buf; | |
8d3eca20 | 143 | int rc = 0; |
de9ac07b | 144 | |
3a62a7b8 WN |
145 | if (rb_find_range(rec->evlist, data, md->mask, head, |
146 | old, &start, &end)) | |
147 | return -1; | |
148 | ||
09fa4f40 | 149 | if (start == end) |
8d3eca20 | 150 | return 0; |
dc82009a | 151 | |
d20deb64 | 152 | rec->samples++; |
de9ac07b | 153 | |
09fa4f40 | 154 | size = end - start; |
2d11c650 WN |
155 | if (size > (unsigned long)(md->mask) + 1) { |
156 | WARN_ONCE(1, "failed to keep up with mmap data. (warn only once)\n"); | |
157 | ||
158 | md->prev = head; | |
159 | perf_evlist__mmap_consume(rec->evlist, idx); | |
160 | return 0; | |
161 | } | |
de9ac07b | 162 | |
09fa4f40 WN |
163 | if ((start & md->mask) + size != (end & md->mask)) { |
164 | buf = &data[start & md->mask]; | |
165 | size = md->mask + 1 - (start & md->mask); | |
166 | start += size; | |
021e9f47 | 167 | |
8c6f45a7 | 168 | if (record__write(rec, buf, size) < 0) { |
8d3eca20 DA |
169 | rc = -1; |
170 | goto out; | |
171 | } | |
de9ac07b PZ |
172 | } |
173 | ||
09fa4f40 WN |
174 | buf = &data[start & md->mask]; |
175 | size = end - start; | |
176 | start += size; | |
021e9f47 | 177 | |
8c6f45a7 | 178 | if (record__write(rec, buf, size) < 0) { |
8d3eca20 DA |
179 | rc = -1; |
180 | goto out; | |
181 | } | |
de9ac07b | 182 | |
09fa4f40 | 183 | md->prev = head; |
e5685730 | 184 | perf_evlist__mmap_consume(rec->evlist, idx); |
8d3eca20 DA |
185 | out: |
186 | return rc; | |
de9ac07b PZ |
187 | } |
188 | ||
2dd6d8a1 AH |
189 | static volatile int done; |
190 | static volatile int signr = -1; | |
191 | static volatile int child_finished; | |
c0bdc1c4 | 192 | |
2dd6d8a1 | 193 | static volatile int auxtrace_record__snapshot_started; |
5f9cf599 | 194 | static DEFINE_TRIGGER(auxtrace_snapshot_trigger); |
3c1cb7e3 | 195 | static DEFINE_TRIGGER(switch_output_trigger); |
2dd6d8a1 AH |
196 | |
197 | static void sig_handler(int sig) | |
198 | { | |
199 | if (sig == SIGCHLD) | |
200 | child_finished = 1; | |
201 | else | |
202 | signr = sig; | |
203 | ||
204 | done = 1; | |
205 | } | |
206 | ||
207 | static void record__sig_exit(void) | |
208 | { | |
209 | if (signr == -1) | |
210 | return; | |
211 | ||
212 | signal(signr, SIG_DFL); | |
213 | raise(signr); | |
214 | } | |
215 | ||
e31f0d01 AH |
216 | #ifdef HAVE_AUXTRACE_SUPPORT |
217 | ||
ef149c25 AH |
218 | static int record__process_auxtrace(struct perf_tool *tool, |
219 | union perf_event *event, void *data1, | |
220 | size_t len1, void *data2, size_t len2) | |
221 | { | |
222 | struct record *rec = container_of(tool, struct record, tool); | |
99fa2984 | 223 | struct perf_data_file *file = &rec->file; |
ef149c25 AH |
224 | size_t padding; |
225 | u8 pad[8] = {0}; | |
226 | ||
99fa2984 AH |
227 | if (!perf_data_file__is_pipe(file)) { |
228 | off_t file_offset; | |
229 | int fd = perf_data_file__fd(file); | |
230 | int err; | |
231 | ||
232 | file_offset = lseek(fd, 0, SEEK_CUR); | |
233 | if (file_offset == -1) | |
234 | return -1; | |
235 | err = auxtrace_index__auxtrace_event(&rec->session->auxtrace_index, | |
236 | event, file_offset); | |
237 | if (err) | |
238 | return err; | |
239 | } | |
240 | ||
ef149c25 AH |
241 | /* event.auxtrace.size includes padding, see __auxtrace_mmap__read() */ |
242 | padding = (len1 + len2) & 7; | |
243 | if (padding) | |
244 | padding = 8 - padding; | |
245 | ||
246 | record__write(rec, event, event->header.size); | |
247 | record__write(rec, data1, len1); | |
248 | if (len2) | |
249 | record__write(rec, data2, len2); | |
250 | record__write(rec, &pad, padding); | |
251 | ||
252 | return 0; | |
253 | } | |
254 | ||
255 | static int record__auxtrace_mmap_read(struct record *rec, | |
256 | struct auxtrace_mmap *mm) | |
257 | { | |
258 | int ret; | |
259 | ||
260 | ret = auxtrace_mmap__read(mm, rec->itr, &rec->tool, | |
261 | record__process_auxtrace); | |
262 | if (ret < 0) | |
263 | return ret; | |
264 | ||
265 | if (ret) | |
266 | rec->samples++; | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
2dd6d8a1 AH |
271 | static int record__auxtrace_mmap_read_snapshot(struct record *rec, |
272 | struct auxtrace_mmap *mm) | |
273 | { | |
274 | int ret; | |
275 | ||
276 | ret = auxtrace_mmap__read_snapshot(mm, rec->itr, &rec->tool, | |
277 | record__process_auxtrace, | |
278 | rec->opts.auxtrace_snapshot_size); | |
279 | if (ret < 0) | |
280 | return ret; | |
281 | ||
282 | if (ret) | |
283 | rec->samples++; | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
288 | static int record__auxtrace_read_snapshot_all(struct record *rec) | |
289 | { | |
290 | int i; | |
291 | int rc = 0; | |
292 | ||
293 | for (i = 0; i < rec->evlist->nr_mmaps; i++) { | |
294 | struct auxtrace_mmap *mm = | |
295 | &rec->evlist->mmap[i].auxtrace_mmap; | |
296 | ||
297 | if (!mm->base) | |
298 | continue; | |
299 | ||
300 | if (record__auxtrace_mmap_read_snapshot(rec, mm) != 0) { | |
301 | rc = -1; | |
302 | goto out; | |
303 | } | |
304 | } | |
305 | out: | |
306 | return rc; | |
307 | } | |
308 | ||
309 | static void record__read_auxtrace_snapshot(struct record *rec) | |
310 | { | |
311 | pr_debug("Recording AUX area tracing snapshot\n"); | |
312 | if (record__auxtrace_read_snapshot_all(rec) < 0) { | |
5f9cf599 | 313 | trigger_error(&auxtrace_snapshot_trigger); |
2dd6d8a1 | 314 | } else { |
5f9cf599 WN |
315 | if (auxtrace_record__snapshot_finish(rec->itr)) |
316 | trigger_error(&auxtrace_snapshot_trigger); | |
317 | else | |
318 | trigger_ready(&auxtrace_snapshot_trigger); | |
2dd6d8a1 AH |
319 | } |
320 | } | |
321 | ||
e31f0d01 AH |
322 | #else |
323 | ||
324 | static inline | |
325 | int record__auxtrace_mmap_read(struct record *rec __maybe_unused, | |
326 | struct auxtrace_mmap *mm __maybe_unused) | |
327 | { | |
328 | return 0; | |
329 | } | |
330 | ||
2dd6d8a1 AH |
331 | static inline |
332 | void record__read_auxtrace_snapshot(struct record *rec __maybe_unused) | |
de9ac07b | 333 | { |
f7b7c26e PZ |
334 | } |
335 | ||
2dd6d8a1 AH |
336 | static inline |
337 | int auxtrace_record__snapshot_start(struct auxtrace_record *itr __maybe_unused) | |
f7b7c26e | 338 | { |
2dd6d8a1 | 339 | return 0; |
de9ac07b PZ |
340 | } |
341 | ||
2dd6d8a1 AH |
342 | #endif |
343 | ||
8c6f45a7 | 344 | static int record__open(struct record *rec) |
dd7927f4 | 345 | { |
56e52e85 | 346 | char msg[512]; |
6a4bb04c | 347 | struct perf_evsel *pos; |
d20deb64 ACM |
348 | struct perf_evlist *evlist = rec->evlist; |
349 | struct perf_session *session = rec->session; | |
b4006796 | 350 | struct record_opts *opts = &rec->opts; |
8d3eca20 | 351 | int rc = 0; |
dd7927f4 | 352 | |
e68ae9cf | 353 | perf_evlist__config(evlist, opts, &callchain_param); |
cac21425 | 354 | |
0050f7aa | 355 | evlist__for_each(evlist, pos) { |
dd7927f4 | 356 | try_again: |
d988d5ee | 357 | if (perf_evsel__open(pos, pos->cpus, pos->threads) < 0) { |
56e52e85 | 358 | if (perf_evsel__fallback(pos, errno, msg, sizeof(msg))) { |
d6d901c2 | 359 | if (verbose) |
c0a54341 | 360 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
361 | goto try_again; |
362 | } | |
ca6a4258 | 363 | |
56e52e85 ACM |
364 | rc = -errno; |
365 | perf_evsel__open_strerror(pos, &opts->target, | |
366 | errno, msg, sizeof(msg)); | |
367 | ui__error("%s\n", msg); | |
8d3eca20 | 368 | goto out; |
c171b552 LZ |
369 | } |
370 | } | |
a43d3f08 | 371 | |
23d4aad4 ACM |
372 | if (perf_evlist__apply_filters(evlist, &pos)) { |
373 | error("failed to set filter \"%s\" on event %s with %d (%s)\n", | |
374 | pos->filter, perf_evsel__name(pos), errno, | |
35550da3 | 375 | strerror_r(errno, msg, sizeof(msg))); |
8d3eca20 DA |
376 | rc = -1; |
377 | goto out; | |
0a102479 FW |
378 | } |
379 | ||
ef149c25 | 380 | if (perf_evlist__mmap_ex(evlist, opts->mmap_pages, false, |
2dd6d8a1 AH |
381 | opts->auxtrace_mmap_pages, |
382 | opts->auxtrace_snapshot_mode) < 0) { | |
8d3eca20 DA |
383 | if (errno == EPERM) { |
384 | pr_err("Permission error mapping pages.\n" | |
385 | "Consider increasing " | |
386 | "/proc/sys/kernel/perf_event_mlock_kb,\n" | |
387 | "or try again with a smaller value of -m/--mmap_pages.\n" | |
ef149c25 AH |
388 | "(current value: %u,%u)\n", |
389 | opts->mmap_pages, opts->auxtrace_mmap_pages); | |
8d3eca20 | 390 | rc = -errno; |
8d3eca20 | 391 | } else { |
35550da3 MH |
392 | pr_err("failed to mmap with %d (%s)\n", errno, |
393 | strerror_r(errno, msg, sizeof(msg))); | |
95c36561 WN |
394 | if (errno) |
395 | rc = -errno; | |
396 | else | |
397 | rc = -EINVAL; | |
8d3eca20 DA |
398 | } |
399 | goto out; | |
18e60939 | 400 | } |
0a27d7f9 | 401 | |
563aecb2 | 402 | session->evlist = evlist; |
7b56cce2 | 403 | perf_session__set_id_hdr_size(session); |
8d3eca20 DA |
404 | out: |
405 | return rc; | |
16c8a109 PZ |
406 | } |
407 | ||
e3d59112 NK |
408 | static int process_sample_event(struct perf_tool *tool, |
409 | union perf_event *event, | |
410 | struct perf_sample *sample, | |
411 | struct perf_evsel *evsel, | |
412 | struct machine *machine) | |
413 | { | |
414 | struct record *rec = container_of(tool, struct record, tool); | |
415 | ||
416 | rec->samples++; | |
417 | ||
418 | return build_id__mark_dso_hit(tool, event, sample, evsel, machine); | |
419 | } | |
420 | ||
8c6f45a7 | 421 | static int process_buildids(struct record *rec) |
6122e4e4 | 422 | { |
f5fc1412 JO |
423 | struct perf_data_file *file = &rec->file; |
424 | struct perf_session *session = rec->session; | |
6122e4e4 | 425 | |
457ae94a | 426 | if (file->size == 0) |
9f591fd7 ACM |
427 | return 0; |
428 | ||
00dc8657 NK |
429 | /* |
430 | * During this process, it'll load kernel map and replace the | |
431 | * dso->long_name to a real pathname it found. In this case | |
432 | * we prefer the vmlinux path like | |
433 | * /lib/modules/3.16.4/build/vmlinux | |
434 | * | |
435 | * rather than build-id path (in debug directory). | |
436 | * $HOME/.debug/.build-id/f0/6e17aa50adf4d00b88925e03775de107611551 | |
437 | */ | |
438 | symbol_conf.ignore_vmlinux_buildid = true; | |
439 | ||
6156681b NK |
440 | /* |
441 | * If --buildid-all is given, it marks all DSO regardless of hits, | |
442 | * so no need to process samples. | |
443 | */ | |
444 | if (rec->buildid_all) | |
445 | rec->tool.sample = NULL; | |
446 | ||
b7b61cbe | 447 | return perf_session__process_events(session); |
6122e4e4 ACM |
448 | } |
449 | ||
8115d60c | 450 | static void perf_event__synthesize_guest_os(struct machine *machine, void *data) |
a1645ce1 ZY |
451 | { |
452 | int err; | |
45694aa7 | 453 | struct perf_tool *tool = data; |
a1645ce1 ZY |
454 | /* |
455 | *As for guest kernel when processing subcommand record&report, | |
456 | *we arrange module mmap prior to guest kernel mmap and trigger | |
457 | *a preload dso because default guest module symbols are loaded | |
458 | *from guest kallsyms instead of /lib/modules/XXX/XXX. This | |
459 | *method is used to avoid symbol missing when the first addr is | |
460 | *in module instead of in guest kernel. | |
461 | */ | |
45694aa7 | 462 | err = perf_event__synthesize_modules(tool, process_synthesized_event, |
743eb868 | 463 | machine); |
a1645ce1 ZY |
464 | if (err < 0) |
465 | pr_err("Couldn't record guest kernel [%d]'s reference" | |
23346f21 | 466 | " relocation symbol.\n", machine->pid); |
a1645ce1 | 467 | |
a1645ce1 ZY |
468 | /* |
469 | * We use _stext for guest kernel because guest kernel's /proc/kallsyms | |
470 | * have no _text sometimes. | |
471 | */ | |
45694aa7 | 472 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
0ae617be | 473 | machine); |
a1645ce1 ZY |
474 | if (err < 0) |
475 | pr_err("Couldn't record guest kernel [%d]'s reference" | |
23346f21 | 476 | " relocation symbol.\n", machine->pid); |
a1645ce1 ZY |
477 | } |
478 | ||
98402807 FW |
479 | static struct perf_event_header finished_round_event = { |
480 | .size = sizeof(struct perf_event_header), | |
481 | .type = PERF_RECORD_FINISHED_ROUND, | |
482 | }; | |
483 | ||
8c6f45a7 | 484 | static int record__mmap_read_all(struct record *rec) |
98402807 | 485 | { |
dcabb507 | 486 | u64 bytes_written = rec->bytes_written; |
0e2e63dd | 487 | int i; |
8d3eca20 | 488 | int rc = 0; |
98402807 | 489 | |
d20deb64 | 490 | for (i = 0; i < rec->evlist->nr_mmaps; i++) { |
ef149c25 AH |
491 | struct auxtrace_mmap *mm = &rec->evlist->mmap[i].auxtrace_mmap; |
492 | ||
8d3eca20 | 493 | if (rec->evlist->mmap[i].base) { |
e5685730 | 494 | if (record__mmap_read(rec, i) != 0) { |
8d3eca20 DA |
495 | rc = -1; |
496 | goto out; | |
497 | } | |
498 | } | |
ef149c25 | 499 | |
2dd6d8a1 | 500 | if (mm->base && !rec->opts.auxtrace_snapshot_mode && |
ef149c25 AH |
501 | record__auxtrace_mmap_read(rec, mm) != 0) { |
502 | rc = -1; | |
503 | goto out; | |
504 | } | |
98402807 FW |
505 | } |
506 | ||
dcabb507 JO |
507 | /* |
508 | * Mark the round finished in case we wrote | |
509 | * at least one event. | |
510 | */ | |
511 | if (bytes_written != rec->bytes_written) | |
512 | rc = record__write(rec, &finished_round_event, sizeof(finished_round_event)); | |
8d3eca20 DA |
513 | |
514 | out: | |
515 | return rc; | |
98402807 FW |
516 | } |
517 | ||
8c6f45a7 | 518 | static void record__init_features(struct record *rec) |
57706abc | 519 | { |
57706abc DA |
520 | struct perf_session *session = rec->session; |
521 | int feat; | |
522 | ||
523 | for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) | |
524 | perf_header__set_feat(&session->header, feat); | |
525 | ||
526 | if (rec->no_buildid) | |
527 | perf_header__clear_feat(&session->header, HEADER_BUILD_ID); | |
528 | ||
3e2be2da | 529 | if (!have_tracepoints(&rec->evlist->entries)) |
57706abc DA |
530 | perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); |
531 | ||
532 | if (!rec->opts.branch_stack) | |
533 | perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); | |
ef149c25 AH |
534 | |
535 | if (!rec->opts.full_auxtrace) | |
536 | perf_header__clear_feat(&session->header, HEADER_AUXTRACE); | |
ffa517ad JO |
537 | |
538 | perf_header__clear_feat(&session->header, HEADER_STAT); | |
57706abc DA |
539 | } |
540 | ||
e1ab48ba WN |
541 | static void |
542 | record__finish_output(struct record *rec) | |
543 | { | |
544 | struct perf_data_file *file = &rec->file; | |
545 | int fd = perf_data_file__fd(file); | |
546 | ||
547 | if (file->is_pipe) | |
548 | return; | |
549 | ||
550 | rec->session->header.data_size += rec->bytes_written; | |
551 | file->size = lseek(perf_data_file__fd(file), 0, SEEK_CUR); | |
552 | ||
553 | if (!rec->no_buildid) { | |
554 | process_buildids(rec); | |
555 | ||
556 | if (rec->buildid_all) | |
557 | dsos__hit_all(rec->session); | |
558 | } | |
559 | perf_session__write_header(rec->session, rec->evlist, fd, true); | |
560 | ||
561 | return; | |
562 | } | |
563 | ||
be7b0c9e WN |
564 | static int record__synthesize_workload(struct record *rec) |
565 | { | |
566 | struct { | |
567 | struct thread_map map; | |
568 | struct thread_map_data map_data; | |
569 | } thread_map; | |
570 | ||
571 | thread_map.map.nr = 1; | |
572 | thread_map.map.map[0].pid = rec->evlist->workload.pid; | |
573 | thread_map.map.map[0].comm = NULL; | |
574 | return perf_event__synthesize_thread_map(&rec->tool, &thread_map.map, | |
575 | process_synthesized_event, | |
576 | &rec->session->machines.host, | |
577 | rec->opts.sample_address, | |
578 | rec->opts.proc_map_timeout); | |
579 | } | |
580 | ||
3c1cb7e3 WN |
581 | static int record__synthesize(struct record *rec); |
582 | ||
ecfd7a9c WN |
583 | static int |
584 | record__switch_output(struct record *rec, bool at_exit) | |
585 | { | |
586 | struct perf_data_file *file = &rec->file; | |
587 | int fd, err; | |
588 | ||
589 | /* Same Size: "2015122520103046"*/ | |
590 | char timestamp[] = "InvalidTimestamp"; | |
591 | ||
592 | rec->samples = 0; | |
593 | record__finish_output(rec); | |
594 | err = fetch_current_timestamp(timestamp, sizeof(timestamp)); | |
595 | if (err) { | |
596 | pr_err("Failed to get current timestamp\n"); | |
597 | return -EINVAL; | |
598 | } | |
599 | ||
600 | fd = perf_data_file__switch(file, timestamp, | |
601 | rec->session->header.data_offset, | |
602 | at_exit); | |
603 | if (fd >= 0 && !at_exit) { | |
604 | rec->bytes_written = 0; | |
605 | rec->session->header.data_size = 0; | |
606 | } | |
607 | ||
608 | if (!quiet) | |
609 | fprintf(stderr, "[ perf record: Dump %s.%s ]\n", | |
610 | file->path, timestamp); | |
3c1cb7e3 WN |
611 | |
612 | /* Output tracking events */ | |
be7b0c9e | 613 | if (!at_exit) { |
3c1cb7e3 WN |
614 | record__synthesize(rec); |
615 | ||
be7b0c9e WN |
616 | /* |
617 | * In 'perf record --switch-output' without -a, | |
618 | * record__synthesize() in record__switch_output() won't | |
619 | * generate tracking events because there's no thread_map | |
620 | * in evlist. Which causes newly created perf.data doesn't | |
621 | * contain map and comm information. | |
622 | * Create a fake thread_map and directly call | |
623 | * perf_event__synthesize_thread_map() for those events. | |
624 | */ | |
625 | if (target__none(&rec->opts.target)) | |
626 | record__synthesize_workload(rec); | |
627 | } | |
ecfd7a9c WN |
628 | return fd; |
629 | } | |
630 | ||
f33cbe72 ACM |
631 | static volatile int workload_exec_errno; |
632 | ||
633 | /* | |
634 | * perf_evlist__prepare_workload will send a SIGUSR1 | |
635 | * if the fork fails, since we asked by setting its | |
636 | * want_signal to true. | |
637 | */ | |
45604710 NK |
638 | static void workload_exec_failed_signal(int signo __maybe_unused, |
639 | siginfo_t *info, | |
f33cbe72 ACM |
640 | void *ucontext __maybe_unused) |
641 | { | |
642 | workload_exec_errno = info->si_value.sival_int; | |
643 | done = 1; | |
f33cbe72 ACM |
644 | child_finished = 1; |
645 | } | |
646 | ||
2dd6d8a1 AH |
647 | static void snapshot_sig_handler(int sig); |
648 | ||
46bc29b9 AH |
649 | int __weak |
650 | perf_event__synth_time_conv(const struct perf_event_mmap_page *pc __maybe_unused, | |
651 | struct perf_tool *tool __maybe_unused, | |
652 | perf_event__handler_t process __maybe_unused, | |
653 | struct machine *machine __maybe_unused) | |
654 | { | |
655 | return 0; | |
656 | } | |
657 | ||
c45628b0 WN |
658 | static const struct perf_event_mmap_page *record__pick_pc(struct record *rec) |
659 | { | |
660 | if (rec->evlist && rec->evlist->mmap && rec->evlist->mmap[0].base) | |
661 | return rec->evlist->mmap[0].base; | |
662 | return NULL; | |
663 | } | |
664 | ||
c45c86eb WN |
665 | static int record__synthesize(struct record *rec) |
666 | { | |
667 | struct perf_session *session = rec->session; | |
668 | struct machine *machine = &session->machines.host; | |
669 | struct perf_data_file *file = &rec->file; | |
670 | struct record_opts *opts = &rec->opts; | |
671 | struct perf_tool *tool = &rec->tool; | |
672 | int fd = perf_data_file__fd(file); | |
673 | int err = 0; | |
674 | ||
675 | if (file->is_pipe) { | |
676 | err = perf_event__synthesize_attrs(tool, session, | |
677 | process_synthesized_event); | |
678 | if (err < 0) { | |
679 | pr_err("Couldn't synthesize attrs.\n"); | |
680 | goto out; | |
681 | } | |
682 | ||
683 | if (have_tracepoints(&rec->evlist->entries)) { | |
684 | /* | |
685 | * FIXME err <= 0 here actually means that | |
686 | * there were no tracepoints so its not really | |
687 | * an error, just that we don't need to | |
688 | * synthesize anything. We really have to | |
689 | * return this more properly and also | |
690 | * propagate errors that now are calling die() | |
691 | */ | |
692 | err = perf_event__synthesize_tracing_data(tool, fd, rec->evlist, | |
693 | process_synthesized_event); | |
694 | if (err <= 0) { | |
695 | pr_err("Couldn't record tracing data.\n"); | |
696 | goto out; | |
697 | } | |
698 | rec->bytes_written += err; | |
699 | } | |
700 | } | |
701 | ||
c45628b0 | 702 | err = perf_event__synth_time_conv(record__pick_pc(rec), tool, |
46bc29b9 AH |
703 | process_synthesized_event, machine); |
704 | if (err) | |
705 | goto out; | |
706 | ||
c45c86eb WN |
707 | if (rec->opts.full_auxtrace) { |
708 | err = perf_event__synthesize_auxtrace_info(rec->itr, tool, | |
709 | session, process_synthesized_event); | |
710 | if (err) | |
711 | goto out; | |
712 | } | |
713 | ||
714 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, | |
715 | machine); | |
716 | WARN_ONCE(err < 0, "Couldn't record kernel reference relocation symbol\n" | |
717 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" | |
718 | "Check /proc/kallsyms permission or run as root.\n"); | |
719 | ||
720 | err = perf_event__synthesize_modules(tool, process_synthesized_event, | |
721 | machine); | |
722 | WARN_ONCE(err < 0, "Couldn't record kernel module information.\n" | |
723 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" | |
724 | "Check /proc/modules permission or run as root.\n"); | |
725 | ||
726 | if (perf_guest) { | |
727 | machines__process_guests(&session->machines, | |
728 | perf_event__synthesize_guest_os, tool); | |
729 | } | |
730 | ||
731 | err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads, | |
732 | process_synthesized_event, opts->sample_address, | |
733 | opts->proc_map_timeout); | |
734 | out: | |
735 | return err; | |
736 | } | |
737 | ||
8c6f45a7 | 738 | static int __cmd_record(struct record *rec, int argc, const char **argv) |
16c8a109 | 739 | { |
57706abc | 740 | int err; |
45604710 | 741 | int status = 0; |
8b412664 | 742 | unsigned long waking = 0; |
46be604b | 743 | const bool forks = argc > 0; |
23346f21 | 744 | struct machine *machine; |
45694aa7 | 745 | struct perf_tool *tool = &rec->tool; |
b4006796 | 746 | struct record_opts *opts = &rec->opts; |
f5fc1412 | 747 | struct perf_data_file *file = &rec->file; |
d20deb64 | 748 | struct perf_session *session; |
6dcf45ef | 749 | bool disabled = false, draining = false; |
42aa276f | 750 | int fd; |
de9ac07b | 751 | |
d20deb64 | 752 | rec->progname = argv[0]; |
33e49ea7 | 753 | |
45604710 | 754 | atexit(record__sig_exit); |
f5970550 PZ |
755 | signal(SIGCHLD, sig_handler); |
756 | signal(SIGINT, sig_handler); | |
804f7ac7 | 757 | signal(SIGTERM, sig_handler); |
c0bdc1c4 | 758 | |
3c1cb7e3 | 759 | if (rec->opts.auxtrace_snapshot_mode || rec->switch_output) { |
2dd6d8a1 | 760 | signal(SIGUSR2, snapshot_sig_handler); |
3c1cb7e3 WN |
761 | if (rec->opts.auxtrace_snapshot_mode) |
762 | trigger_on(&auxtrace_snapshot_trigger); | |
763 | if (rec->switch_output) | |
764 | trigger_on(&switch_output_trigger); | |
c0bdc1c4 | 765 | } else { |
2dd6d8a1 | 766 | signal(SIGUSR2, SIG_IGN); |
c0bdc1c4 | 767 | } |
f5970550 | 768 | |
b7b61cbe | 769 | session = perf_session__new(file, false, tool); |
94c744b6 | 770 | if (session == NULL) { |
ffa91880 | 771 | pr_err("Perf session creation failed.\n"); |
a9a70bbc ACM |
772 | return -1; |
773 | } | |
774 | ||
42aa276f | 775 | fd = perf_data_file__fd(file); |
d20deb64 ACM |
776 | rec->session = session; |
777 | ||
8c6f45a7 | 778 | record__init_features(rec); |
330aa675 | 779 | |
d4db3f16 | 780 | if (forks) { |
3e2be2da | 781 | err = perf_evlist__prepare_workload(rec->evlist, &opts->target, |
f5fc1412 | 782 | argv, file->is_pipe, |
735f7e0b | 783 | workload_exec_failed_signal); |
35b9d88e ACM |
784 | if (err < 0) { |
785 | pr_err("Couldn't run the workload!\n"); | |
45604710 | 786 | status = err; |
35b9d88e | 787 | goto out_delete_session; |
856e9660 | 788 | } |
856e9660 PZ |
789 | } |
790 | ||
8c6f45a7 | 791 | if (record__open(rec) != 0) { |
8d3eca20 | 792 | err = -1; |
45604710 | 793 | goto out_child; |
8d3eca20 | 794 | } |
de9ac07b | 795 | |
8690a2a7 WN |
796 | err = bpf__apply_obj_config(); |
797 | if (err) { | |
798 | char errbuf[BUFSIZ]; | |
799 | ||
800 | bpf__strerror_apply_obj_config(err, errbuf, sizeof(errbuf)); | |
801 | pr_err("ERROR: Apply config to BPF failed: %s\n", | |
802 | errbuf); | |
803 | goto out_child; | |
804 | } | |
805 | ||
cca8482c AH |
806 | /* |
807 | * Normally perf_session__new would do this, but it doesn't have the | |
808 | * evlist. | |
809 | */ | |
810 | if (rec->tool.ordered_events && !perf_evlist__sample_id_all(rec->evlist)) { | |
811 | pr_warning("WARNING: No sample_id_all support, falling back to unordered processing\n"); | |
812 | rec->tool.ordered_events = false; | |
813 | } | |
814 | ||
3e2be2da | 815 | if (!rec->evlist->nr_groups) |
a8bb559b NK |
816 | perf_header__clear_feat(&session->header, HEADER_GROUP_DESC); |
817 | ||
f5fc1412 | 818 | if (file->is_pipe) { |
42aa276f | 819 | err = perf_header__write_pipe(fd); |
529870e3 | 820 | if (err < 0) |
45604710 | 821 | goto out_child; |
563aecb2 | 822 | } else { |
42aa276f | 823 | err = perf_session__write_header(session, rec->evlist, fd, false); |
d5eed904 | 824 | if (err < 0) |
45604710 | 825 | goto out_child; |
56b03f3c ACM |
826 | } |
827 | ||
d3665498 | 828 | if (!rec->no_buildid |
e20960c0 | 829 | && !perf_header__has_feat(&session->header, HEADER_BUILD_ID)) { |
d3665498 | 830 | pr_err("Couldn't generate buildids. " |
e20960c0 | 831 | "Use --no-buildid to profile anyway.\n"); |
8d3eca20 | 832 | err = -1; |
45604710 | 833 | goto out_child; |
e20960c0 RR |
834 | } |
835 | ||
34ba5122 | 836 | machine = &session->machines.host; |
743eb868 | 837 | |
c45c86eb WN |
838 | err = record__synthesize(rec); |
839 | if (err < 0) | |
45604710 | 840 | goto out_child; |
8d3eca20 | 841 | |
d20deb64 | 842 | if (rec->realtime_prio) { |
de9ac07b PZ |
843 | struct sched_param param; |
844 | ||
d20deb64 | 845 | param.sched_priority = rec->realtime_prio; |
de9ac07b | 846 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
6beba7ad | 847 | pr_err("Could not set realtime priority.\n"); |
8d3eca20 | 848 | err = -1; |
45604710 | 849 | goto out_child; |
de9ac07b PZ |
850 | } |
851 | } | |
852 | ||
774cb499 JO |
853 | /* |
854 | * When perf is starting the traced process, all the events | |
855 | * (apart from group members) have enable_on_exec=1 set, | |
856 | * so don't spoil it by prematurely enabling them. | |
857 | */ | |
6619a53e | 858 | if (!target__none(&opts->target) && !opts->initial_delay) |
3e2be2da | 859 | perf_evlist__enable(rec->evlist); |
764e16a3 | 860 | |
856e9660 PZ |
861 | /* |
862 | * Let the child rip | |
863 | */ | |
e803cf97 | 864 | if (forks) { |
e5bed564 NK |
865 | union perf_event *event; |
866 | ||
867 | event = malloc(sizeof(event->comm) + machine->id_hdr_size); | |
868 | if (event == NULL) { | |
869 | err = -ENOMEM; | |
870 | goto out_child; | |
871 | } | |
872 | ||
e803cf97 NK |
873 | /* |
874 | * Some H/W events are generated before COMM event | |
875 | * which is emitted during exec(), so perf script | |
876 | * cannot see a correct process name for those events. | |
877 | * Synthesize COMM event to prevent it. | |
878 | */ | |
e5bed564 | 879 | perf_event__synthesize_comm(tool, event, |
e803cf97 NK |
880 | rec->evlist->workload.pid, |
881 | process_synthesized_event, | |
882 | machine); | |
e5bed564 | 883 | free(event); |
e803cf97 | 884 | |
3e2be2da | 885 | perf_evlist__start_workload(rec->evlist); |
e803cf97 | 886 | } |
856e9660 | 887 | |
6619a53e AK |
888 | if (opts->initial_delay) { |
889 | usleep(opts->initial_delay * 1000); | |
890 | perf_evlist__enable(rec->evlist); | |
891 | } | |
892 | ||
5f9cf599 | 893 | trigger_ready(&auxtrace_snapshot_trigger); |
3c1cb7e3 | 894 | trigger_ready(&switch_output_trigger); |
649c48a9 | 895 | for (;;) { |
9f065194 | 896 | unsigned long long hits = rec->samples; |
de9ac07b | 897 | |
8c6f45a7 | 898 | if (record__mmap_read_all(rec) < 0) { |
5f9cf599 | 899 | trigger_error(&auxtrace_snapshot_trigger); |
3c1cb7e3 | 900 | trigger_error(&switch_output_trigger); |
8d3eca20 | 901 | err = -1; |
45604710 | 902 | goto out_child; |
8d3eca20 | 903 | } |
de9ac07b | 904 | |
2dd6d8a1 AH |
905 | if (auxtrace_record__snapshot_started) { |
906 | auxtrace_record__snapshot_started = 0; | |
5f9cf599 | 907 | if (!trigger_is_error(&auxtrace_snapshot_trigger)) |
2dd6d8a1 | 908 | record__read_auxtrace_snapshot(rec); |
5f9cf599 | 909 | if (trigger_is_error(&auxtrace_snapshot_trigger)) { |
2dd6d8a1 AH |
910 | pr_err("AUX area tracing snapshot failed\n"); |
911 | err = -1; | |
912 | goto out_child; | |
913 | } | |
914 | } | |
915 | ||
3c1cb7e3 WN |
916 | if (trigger_is_hit(&switch_output_trigger)) { |
917 | trigger_ready(&switch_output_trigger); | |
918 | ||
919 | if (!quiet) | |
920 | fprintf(stderr, "[ perf record: dump data: Woken up %ld times ]\n", | |
921 | waking); | |
922 | waking = 0; | |
923 | fd = record__switch_output(rec, false); | |
924 | if (fd < 0) { | |
925 | pr_err("Failed to switch to new file\n"); | |
926 | trigger_error(&switch_output_trigger); | |
927 | err = fd; | |
928 | goto out_child; | |
929 | } | |
930 | } | |
931 | ||
d20deb64 | 932 | if (hits == rec->samples) { |
6dcf45ef | 933 | if (done || draining) |
649c48a9 | 934 | break; |
f66a889d | 935 | err = perf_evlist__poll(rec->evlist, -1); |
a515114f JO |
936 | /* |
937 | * Propagate error, only if there's any. Ignore positive | |
938 | * number of returned events and interrupt error. | |
939 | */ | |
940 | if (err > 0 || (err < 0 && errno == EINTR)) | |
45604710 | 941 | err = 0; |
8b412664 | 942 | waking++; |
6dcf45ef ACM |
943 | |
944 | if (perf_evlist__filter_pollfd(rec->evlist, POLLERR | POLLHUP) == 0) | |
945 | draining = true; | |
8b412664 PZ |
946 | } |
947 | ||
774cb499 JO |
948 | /* |
949 | * When perf is starting the traced process, at the end events | |
950 | * die with the process and we wait for that. Thus no need to | |
951 | * disable events in this case. | |
952 | */ | |
602ad878 | 953 | if (done && !disabled && !target__none(&opts->target)) { |
5f9cf599 | 954 | trigger_off(&auxtrace_snapshot_trigger); |
3e2be2da | 955 | perf_evlist__disable(rec->evlist); |
2711926a JO |
956 | disabled = true; |
957 | } | |
de9ac07b | 958 | } |
5f9cf599 | 959 | trigger_off(&auxtrace_snapshot_trigger); |
3c1cb7e3 | 960 | trigger_off(&switch_output_trigger); |
de9ac07b | 961 | |
f33cbe72 | 962 | if (forks && workload_exec_errno) { |
35550da3 | 963 | char msg[STRERR_BUFSIZE]; |
f33cbe72 ACM |
964 | const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); |
965 | pr_err("Workload failed: %s\n", emsg); | |
966 | err = -1; | |
45604710 | 967 | goto out_child; |
f33cbe72 ACM |
968 | } |
969 | ||
e3d59112 | 970 | if (!quiet) |
45604710 | 971 | fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking); |
b44308f5 | 972 | |
45604710 NK |
973 | out_child: |
974 | if (forks) { | |
975 | int exit_status; | |
addc2785 | 976 | |
45604710 NK |
977 | if (!child_finished) |
978 | kill(rec->evlist->workload.pid, SIGTERM); | |
979 | ||
980 | wait(&exit_status); | |
981 | ||
982 | if (err < 0) | |
983 | status = err; | |
984 | else if (WIFEXITED(exit_status)) | |
985 | status = WEXITSTATUS(exit_status); | |
986 | else if (WIFSIGNALED(exit_status)) | |
987 | signr = WTERMSIG(exit_status); | |
988 | } else | |
989 | status = err; | |
990 | ||
e3d59112 NK |
991 | /* this will be recalculated during process_buildids() */ |
992 | rec->samples = 0; | |
993 | ||
ecfd7a9c WN |
994 | if (!err) { |
995 | if (!rec->timestamp_filename) { | |
996 | record__finish_output(rec); | |
997 | } else { | |
998 | fd = record__switch_output(rec, true); | |
999 | if (fd < 0) { | |
1000 | status = fd; | |
1001 | goto out_delete_session; | |
1002 | } | |
1003 | } | |
1004 | } | |
39d17dac | 1005 | |
e3d59112 NK |
1006 | if (!err && !quiet) { |
1007 | char samples[128]; | |
ecfd7a9c WN |
1008 | const char *postfix = rec->timestamp_filename ? |
1009 | ".<timestamp>" : ""; | |
e3d59112 | 1010 | |
ef149c25 | 1011 | if (rec->samples && !rec->opts.full_auxtrace) |
e3d59112 NK |
1012 | scnprintf(samples, sizeof(samples), |
1013 | " (%" PRIu64 " samples)", rec->samples); | |
1014 | else | |
1015 | samples[0] = '\0'; | |
1016 | ||
ecfd7a9c | 1017 | fprintf(stderr, "[ perf record: Captured and wrote %.3f MB %s%s%s ]\n", |
e3d59112 | 1018 | perf_data_file__size(file) / 1024.0 / 1024.0, |
ecfd7a9c | 1019 | file->path, postfix, samples); |
e3d59112 NK |
1020 | } |
1021 | ||
39d17dac ACM |
1022 | out_delete_session: |
1023 | perf_session__delete(session); | |
45604710 | 1024 | return status; |
de9ac07b | 1025 | } |
0e9b20b8 | 1026 | |
0883e820 | 1027 | static void callchain_debug(struct callchain_param *callchain) |
09b0fd45 | 1028 | { |
aad2b21c | 1029 | static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF", "LBR" }; |
a601fdff | 1030 | |
0883e820 | 1031 | pr_debug("callchain: type %s\n", str[callchain->record_mode]); |
26d33022 | 1032 | |
0883e820 | 1033 | if (callchain->record_mode == CALLCHAIN_DWARF) |
09b0fd45 | 1034 | pr_debug("callchain: stack dump size %d\n", |
0883e820 | 1035 | callchain->dump_size); |
09b0fd45 JO |
1036 | } |
1037 | ||
0883e820 ACM |
1038 | int record_opts__parse_callchain(struct record_opts *record, |
1039 | struct callchain_param *callchain, | |
1040 | const char *arg, bool unset) | |
09b0fd45 | 1041 | { |
09b0fd45 | 1042 | int ret; |
0883e820 | 1043 | callchain->enabled = !unset; |
eb853e80 | 1044 | |
09b0fd45 JO |
1045 | /* --no-call-graph */ |
1046 | if (unset) { | |
0883e820 | 1047 | callchain->record_mode = CALLCHAIN_NONE; |
09b0fd45 JO |
1048 | pr_debug("callchain: disabled\n"); |
1049 | return 0; | |
1050 | } | |
1051 | ||
0883e820 | 1052 | ret = parse_callchain_record_opt(arg, callchain); |
5c0cf224 JO |
1053 | if (!ret) { |
1054 | /* Enable data address sampling for DWARF unwind. */ | |
0883e820 | 1055 | if (callchain->record_mode == CALLCHAIN_DWARF) |
5c0cf224 | 1056 | record->sample_address = true; |
0883e820 | 1057 | callchain_debug(callchain); |
5c0cf224 | 1058 | } |
26d33022 JO |
1059 | |
1060 | return ret; | |
1061 | } | |
1062 | ||
0883e820 ACM |
1063 | int record_parse_callchain_opt(const struct option *opt, |
1064 | const char *arg, | |
1065 | int unset) | |
1066 | { | |
1067 | return record_opts__parse_callchain(opt->value, &callchain_param, arg, unset); | |
1068 | } | |
1069 | ||
c421e80b | 1070 | int record_callchain_opt(const struct option *opt, |
09b0fd45 JO |
1071 | const char *arg __maybe_unused, |
1072 | int unset __maybe_unused) | |
1073 | { | |
2ddd5c04 | 1074 | struct callchain_param *callchain = opt->value; |
c421e80b | 1075 | |
2ddd5c04 | 1076 | callchain->enabled = true; |
09b0fd45 | 1077 | |
2ddd5c04 ACM |
1078 | if (callchain->record_mode == CALLCHAIN_NONE) |
1079 | callchain->record_mode = CALLCHAIN_FP; | |
eb853e80 | 1080 | |
2ddd5c04 | 1081 | callchain_debug(callchain); |
09b0fd45 JO |
1082 | return 0; |
1083 | } | |
1084 | ||
eb853e80 JO |
1085 | static int perf_record_config(const char *var, const char *value, void *cb) |
1086 | { | |
7a29c087 NK |
1087 | struct record *rec = cb; |
1088 | ||
1089 | if (!strcmp(var, "record.build-id")) { | |
1090 | if (!strcmp(value, "cache")) | |
1091 | rec->no_buildid_cache = false; | |
1092 | else if (!strcmp(value, "no-cache")) | |
1093 | rec->no_buildid_cache = true; | |
1094 | else if (!strcmp(value, "skip")) | |
1095 | rec->no_buildid = true; | |
1096 | else | |
1097 | return -1; | |
1098 | return 0; | |
1099 | } | |
eb853e80 | 1100 | if (!strcmp(var, "record.call-graph")) |
5a2e5e85 | 1101 | var = "call-graph.record-mode"; /* fall-through */ |
eb853e80 JO |
1102 | |
1103 | return perf_default_config(var, value, cb); | |
1104 | } | |
1105 | ||
814c8c38 PZ |
1106 | struct clockid_map { |
1107 | const char *name; | |
1108 | int clockid; | |
1109 | }; | |
1110 | ||
1111 | #define CLOCKID_MAP(n, c) \ | |
1112 | { .name = n, .clockid = (c), } | |
1113 | ||
1114 | #define CLOCKID_END { .name = NULL, } | |
1115 | ||
1116 | ||
1117 | /* | |
1118 | * Add the missing ones, we need to build on many distros... | |
1119 | */ | |
1120 | #ifndef CLOCK_MONOTONIC_RAW | |
1121 | #define CLOCK_MONOTONIC_RAW 4 | |
1122 | #endif | |
1123 | #ifndef CLOCK_BOOTTIME | |
1124 | #define CLOCK_BOOTTIME 7 | |
1125 | #endif | |
1126 | #ifndef CLOCK_TAI | |
1127 | #define CLOCK_TAI 11 | |
1128 | #endif | |
1129 | ||
1130 | static const struct clockid_map clockids[] = { | |
1131 | /* available for all events, NMI safe */ | |
1132 | CLOCKID_MAP("monotonic", CLOCK_MONOTONIC), | |
1133 | CLOCKID_MAP("monotonic_raw", CLOCK_MONOTONIC_RAW), | |
1134 | ||
1135 | /* available for some events */ | |
1136 | CLOCKID_MAP("realtime", CLOCK_REALTIME), | |
1137 | CLOCKID_MAP("boottime", CLOCK_BOOTTIME), | |
1138 | CLOCKID_MAP("tai", CLOCK_TAI), | |
1139 | ||
1140 | /* available for the lazy */ | |
1141 | CLOCKID_MAP("mono", CLOCK_MONOTONIC), | |
1142 | CLOCKID_MAP("raw", CLOCK_MONOTONIC_RAW), | |
1143 | CLOCKID_MAP("real", CLOCK_REALTIME), | |
1144 | CLOCKID_MAP("boot", CLOCK_BOOTTIME), | |
1145 | ||
1146 | CLOCKID_END, | |
1147 | }; | |
1148 | ||
1149 | static int parse_clockid(const struct option *opt, const char *str, int unset) | |
1150 | { | |
1151 | struct record_opts *opts = (struct record_opts *)opt->value; | |
1152 | const struct clockid_map *cm; | |
1153 | const char *ostr = str; | |
1154 | ||
1155 | if (unset) { | |
1156 | opts->use_clockid = 0; | |
1157 | return 0; | |
1158 | } | |
1159 | ||
1160 | /* no arg passed */ | |
1161 | if (!str) | |
1162 | return 0; | |
1163 | ||
1164 | /* no setting it twice */ | |
1165 | if (opts->use_clockid) | |
1166 | return -1; | |
1167 | ||
1168 | opts->use_clockid = true; | |
1169 | ||
1170 | /* if its a number, we're done */ | |
1171 | if (sscanf(str, "%d", &opts->clockid) == 1) | |
1172 | return 0; | |
1173 | ||
1174 | /* allow a "CLOCK_" prefix to the name */ | |
1175 | if (!strncasecmp(str, "CLOCK_", 6)) | |
1176 | str += 6; | |
1177 | ||
1178 | for (cm = clockids; cm->name; cm++) { | |
1179 | if (!strcasecmp(str, cm->name)) { | |
1180 | opts->clockid = cm->clockid; | |
1181 | return 0; | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | opts->use_clockid = false; | |
1186 | ui__warning("unknown clockid %s, check man page\n", ostr); | |
1187 | return -1; | |
1188 | } | |
1189 | ||
e9db1310 AH |
1190 | static int record__parse_mmap_pages(const struct option *opt, |
1191 | const char *str, | |
1192 | int unset __maybe_unused) | |
1193 | { | |
1194 | struct record_opts *opts = opt->value; | |
1195 | char *s, *p; | |
1196 | unsigned int mmap_pages; | |
1197 | int ret; | |
1198 | ||
1199 | if (!str) | |
1200 | return -EINVAL; | |
1201 | ||
1202 | s = strdup(str); | |
1203 | if (!s) | |
1204 | return -ENOMEM; | |
1205 | ||
1206 | p = strchr(s, ','); | |
1207 | if (p) | |
1208 | *p = '\0'; | |
1209 | ||
1210 | if (*s) { | |
1211 | ret = __perf_evlist__parse_mmap_pages(&mmap_pages, s); | |
1212 | if (ret) | |
1213 | goto out_free; | |
1214 | opts->mmap_pages = mmap_pages; | |
1215 | } | |
1216 | ||
1217 | if (!p) { | |
1218 | ret = 0; | |
1219 | goto out_free; | |
1220 | } | |
1221 | ||
1222 | ret = __perf_evlist__parse_mmap_pages(&mmap_pages, p + 1); | |
1223 | if (ret) | |
1224 | goto out_free; | |
1225 | ||
1226 | opts->auxtrace_mmap_pages = mmap_pages; | |
1227 | ||
1228 | out_free: | |
1229 | free(s); | |
1230 | return ret; | |
1231 | } | |
1232 | ||
e5b2c207 | 1233 | static const char * const __record_usage[] = { |
9e096753 MG |
1234 | "perf record [<options>] [<command>]", |
1235 | "perf record [<options>] -- <command> [<options>]", | |
0e9b20b8 IM |
1236 | NULL |
1237 | }; | |
e5b2c207 | 1238 | const char * const *record_usage = __record_usage; |
0e9b20b8 | 1239 | |
d20deb64 | 1240 | /* |
8c6f45a7 ACM |
1241 | * XXX Ideally would be local to cmd_record() and passed to a record__new |
1242 | * because we need to have access to it in record__exit, that is called | |
d20deb64 ACM |
1243 | * after cmd_record() exits, but since record_options need to be accessible to |
1244 | * builtin-script, leave it here. | |
1245 | * | |
1246 | * At least we don't ouch it in all the other functions here directly. | |
1247 | * | |
1248 | * Just say no to tons of global variables, sigh. | |
1249 | */ | |
8c6f45a7 | 1250 | static struct record record = { |
d20deb64 | 1251 | .opts = { |
8affc2b8 | 1252 | .sample_time = true, |
d20deb64 ACM |
1253 | .mmap_pages = UINT_MAX, |
1254 | .user_freq = UINT_MAX, | |
1255 | .user_interval = ULLONG_MAX, | |
447a6013 | 1256 | .freq = 4000, |
d1cb9fce NK |
1257 | .target = { |
1258 | .uses_mmap = true, | |
3aa5939d | 1259 | .default_per_cpu = true, |
d1cb9fce | 1260 | }, |
9d9cad76 | 1261 | .proc_map_timeout = 500, |
d20deb64 | 1262 | }, |
e3d59112 NK |
1263 | .tool = { |
1264 | .sample = process_sample_event, | |
1265 | .fork = perf_event__process_fork, | |
cca8482c | 1266 | .exit = perf_event__process_exit, |
e3d59112 NK |
1267 | .comm = perf_event__process_comm, |
1268 | .mmap = perf_event__process_mmap, | |
1269 | .mmap2 = perf_event__process_mmap2, | |
cca8482c | 1270 | .ordered_events = true, |
e3d59112 | 1271 | }, |
d20deb64 | 1272 | }; |
7865e817 | 1273 | |
76a26549 NK |
1274 | const char record_callchain_help[] = CALLCHAIN_RECORD_HELP |
1275 | "\n\t\t\t\tDefault: fp"; | |
61eaa3be | 1276 | |
d20deb64 ACM |
1277 | /* |
1278 | * XXX Will stay a global variable till we fix builtin-script.c to stop messing | |
1279 | * with it and switch to use the library functions in perf_evlist that came | |
b4006796 | 1280 | * from builtin-record.c, i.e. use record_opts, |
d20deb64 ACM |
1281 | * perf_evlist__prepare_workload, etc instead of fork+exec'in 'perf record', |
1282 | * using pipes, etc. | |
1283 | */ | |
e5b2c207 | 1284 | struct option __record_options[] = { |
d20deb64 | 1285 | OPT_CALLBACK('e', "event", &record.evlist, "event", |
86847b62 | 1286 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1287 | parse_events_option), |
d20deb64 | 1288 | OPT_CALLBACK(0, "filter", &record.evlist, "filter", |
c171b552 | 1289 | "event filter", parse_filter), |
4ba1faa1 WN |
1290 | OPT_CALLBACK_NOOPT(0, "exclude-perf", &record.evlist, |
1291 | NULL, "don't record events from perf itself", | |
1292 | exclude_perf), | |
bea03405 | 1293 | OPT_STRING('p', "pid", &record.opts.target.pid, "pid", |
d6d901c2 | 1294 | "record events on existing process id"), |
bea03405 | 1295 | OPT_STRING('t', "tid", &record.opts.target.tid, "tid", |
d6d901c2 | 1296 | "record events on existing thread id"), |
d20deb64 | 1297 | OPT_INTEGER('r', "realtime", &record.realtime_prio, |
0e9b20b8 | 1298 | "collect data with this RT SCHED_FIFO priority"), |
509051ea | 1299 | OPT_BOOLEAN(0, "no-buffering", &record.opts.no_buffering, |
acac03fa | 1300 | "collect data without buffering"), |
d20deb64 | 1301 | OPT_BOOLEAN('R', "raw-samples", &record.opts.raw_samples, |
daac07b2 | 1302 | "collect raw sample records from all opened counters"), |
bea03405 | 1303 | OPT_BOOLEAN('a', "all-cpus", &record.opts.target.system_wide, |
0e9b20b8 | 1304 | "system-wide collection from all CPUs"), |
bea03405 | 1305 | OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu", |
c45c6ea2 | 1306 | "list of cpus to monitor"), |
d20deb64 | 1307 | OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"), |
f5fc1412 | 1308 | OPT_STRING('o', "output", &record.file.path, "file", |
abaff32a | 1309 | "output file name"), |
69e7e5b0 AH |
1310 | OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit, |
1311 | &record.opts.no_inherit_set, | |
1312 | "child tasks do not inherit counters"), | |
d20deb64 | 1313 | OPT_UINTEGER('F', "freq", &record.opts.user_freq, "profile at this frequency"), |
e9db1310 AH |
1314 | OPT_CALLBACK('m', "mmap-pages", &record.opts, "pages[,pages]", |
1315 | "number of mmap data pages and AUX area tracing mmap pages", | |
1316 | record__parse_mmap_pages), | |
d20deb64 | 1317 | OPT_BOOLEAN(0, "group", &record.opts.group, |
43bece79 | 1318 | "put the counters into a counter group"), |
2ddd5c04 | 1319 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
09b0fd45 JO |
1320 | NULL, "enables call-graph recording" , |
1321 | &record_callchain_opt), | |
1322 | OPT_CALLBACK(0, "call-graph", &record.opts, | |
76a26549 | 1323 | "record_mode[,record_size]", record_callchain_help, |
09b0fd45 | 1324 | &record_parse_callchain_opt), |
c0555642 | 1325 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1326 | "be more verbose (show counter open errors, etc)"), |
b44308f5 | 1327 | OPT_BOOLEAN('q', "quiet", &quiet, "don't print any message"), |
d20deb64 | 1328 | OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat, |
649c48a9 | 1329 | "per thread counts"), |
56100321 | 1330 | OPT_BOOLEAN('d', "data", &record.opts.sample_address, "Record the sample addresses"), |
3abebc55 AH |
1331 | OPT_BOOLEAN_SET('T', "timestamp", &record.opts.sample_time, |
1332 | &record.opts.sample_time_set, | |
1333 | "Record the sample timestamps"), | |
56100321 | 1334 | OPT_BOOLEAN('P', "period", &record.opts.period, "Record the sample period"), |
d20deb64 | 1335 | OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples, |
649c48a9 | 1336 | "don't sample"), |
d2db9a98 WN |
1337 | OPT_BOOLEAN_SET('N', "no-buildid-cache", &record.no_buildid_cache, |
1338 | &record.no_buildid_cache_set, | |
1339 | "do not update the buildid cache"), | |
1340 | OPT_BOOLEAN_SET('B', "no-buildid", &record.no_buildid, | |
1341 | &record.no_buildid_set, | |
1342 | "do not collect buildids in perf.data"), | |
d20deb64 | 1343 | OPT_CALLBACK('G', "cgroup", &record.evlist, "name", |
023695d9 SE |
1344 | "monitor event in cgroup name only", |
1345 | parse_cgroups), | |
a6205a35 | 1346 | OPT_UINTEGER('D', "delay", &record.opts.initial_delay, |
6619a53e | 1347 | "ms to wait before starting measurement after program start"), |
bea03405 NK |
1348 | OPT_STRING('u', "uid", &record.opts.target.uid_str, "user", |
1349 | "user to profile"), | |
a5aabdac SE |
1350 | |
1351 | OPT_CALLBACK_NOOPT('b', "branch-any", &record.opts.branch_stack, | |
1352 | "branch any", "sample any taken branches", | |
1353 | parse_branch_stack), | |
1354 | ||
1355 | OPT_CALLBACK('j', "branch-filter", &record.opts.branch_stack, | |
1356 | "branch filter mask", "branch stack filter modes", | |
bdfebd84 | 1357 | parse_branch_stack), |
05484298 AK |
1358 | OPT_BOOLEAN('W', "weight", &record.opts.sample_weight, |
1359 | "sample by weight (on special events only)"), | |
475eeab9 AK |
1360 | OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction, |
1361 | "sample transaction flags (special events only)"), | |
3aa5939d AH |
1362 | OPT_BOOLEAN(0, "per-thread", &record.opts.target.per_thread, |
1363 | "use per-thread mmaps"), | |
bcc84ec6 SE |
1364 | OPT_CALLBACK_OPTARG('I', "intr-regs", &record.opts.sample_intr_regs, NULL, "any register", |
1365 | "sample selected machine registers on interrupt," | |
1366 | " use -I ? to list register names", parse_regs), | |
85c273d2 AK |
1367 | OPT_BOOLEAN(0, "running-time", &record.opts.running_time, |
1368 | "Record running/enabled time of read (:S) events"), | |
814c8c38 PZ |
1369 | OPT_CALLBACK('k', "clockid", &record.opts, |
1370 | "clockid", "clockid to use for events, see clock_gettime()", | |
1371 | parse_clockid), | |
2dd6d8a1 AH |
1372 | OPT_STRING_OPTARG('S', "snapshot", &record.opts.auxtrace_snapshot_opts, |
1373 | "opts", "AUX area tracing Snapshot Mode", ""), | |
9d9cad76 KL |
1374 | OPT_UINTEGER(0, "proc-map-timeout", &record.opts.proc_map_timeout, |
1375 | "per thread proc mmap processing timeout in ms"), | |
b757bb09 AH |
1376 | OPT_BOOLEAN(0, "switch-events", &record.opts.record_switch_events, |
1377 | "Record context switch events"), | |
85723885 JO |
1378 | OPT_BOOLEAN_FLAG(0, "all-kernel", &record.opts.all_kernel, |
1379 | "Configure all used events to run in kernel space.", | |
1380 | PARSE_OPT_EXCLUSIVE), | |
1381 | OPT_BOOLEAN_FLAG(0, "all-user", &record.opts.all_user, | |
1382 | "Configure all used events to run in user space.", | |
1383 | PARSE_OPT_EXCLUSIVE), | |
71dc2326 WN |
1384 | OPT_STRING(0, "clang-path", &llvm_param.clang_path, "clang path", |
1385 | "clang binary to use for compiling BPF scriptlets"), | |
1386 | OPT_STRING(0, "clang-opt", &llvm_param.clang_opt, "clang options", | |
1387 | "options passed to clang when compiling BPF scriptlets"), | |
7efe0e03 HK |
1388 | OPT_STRING(0, "vmlinux", &symbol_conf.vmlinux_name, |
1389 | "file", "vmlinux pathname"), | |
6156681b NK |
1390 | OPT_BOOLEAN(0, "buildid-all", &record.buildid_all, |
1391 | "Record build-id of all DSOs regardless of hits"), | |
ecfd7a9c WN |
1392 | OPT_BOOLEAN(0, "timestamp-filename", &record.timestamp_filename, |
1393 | "append timestamp to output filename"), | |
3c1cb7e3 WN |
1394 | OPT_BOOLEAN(0, "switch-output", &record.switch_output, |
1395 | "Switch output when receive SIGUSR2"), | |
0e9b20b8 IM |
1396 | OPT_END() |
1397 | }; | |
1398 | ||
e5b2c207 NK |
1399 | struct option *record_options = __record_options; |
1400 | ||
1d037ca1 | 1401 | int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) |
0e9b20b8 | 1402 | { |
ef149c25 | 1403 | int err; |
8c6f45a7 | 1404 | struct record *rec = &record; |
16ad2ffb | 1405 | char errbuf[BUFSIZ]; |
0e9b20b8 | 1406 | |
48e1cab1 WN |
1407 | #ifndef HAVE_LIBBPF_SUPPORT |
1408 | # define set_nobuild(s, l, c) set_option_nobuild(record_options, s, l, "NO_LIBBPF=1", c) | |
1409 | set_nobuild('\0', "clang-path", true); | |
1410 | set_nobuild('\0', "clang-opt", true); | |
1411 | # undef set_nobuild | |
7efe0e03 HK |
1412 | #endif |
1413 | ||
1414 | #ifndef HAVE_BPF_PROLOGUE | |
1415 | # if !defined (HAVE_DWARF_SUPPORT) | |
1416 | # define REASON "NO_DWARF=1" | |
1417 | # elif !defined (HAVE_LIBBPF_SUPPORT) | |
1418 | # define REASON "NO_LIBBPF=1" | |
1419 | # else | |
1420 | # define REASON "this architecture doesn't support BPF prologue" | |
1421 | # endif | |
1422 | # define set_nobuild(s, l, c) set_option_nobuild(record_options, s, l, REASON, c) | |
1423 | set_nobuild('\0', "vmlinux", true); | |
1424 | # undef set_nobuild | |
1425 | # undef REASON | |
48e1cab1 WN |
1426 | #endif |
1427 | ||
3e2be2da ACM |
1428 | rec->evlist = perf_evlist__new(); |
1429 | if (rec->evlist == NULL) | |
361c99a6 ACM |
1430 | return -ENOMEM; |
1431 | ||
eb853e80 JO |
1432 | perf_config(perf_record_config, rec); |
1433 | ||
bca647aa | 1434 | argc = parse_options(argc, argv, record_options, record_usage, |
655000e7 | 1435 | PARSE_OPT_STOP_AT_NON_OPTION); |
602ad878 | 1436 | if (!argc && target__none(&rec->opts.target)) |
bca647aa | 1437 | usage_with_options(record_usage, record_options); |
0e9b20b8 | 1438 | |
bea03405 | 1439 | if (nr_cgroups && !rec->opts.target.system_wide) { |
c7118369 NK |
1440 | usage_with_options_msg(record_usage, record_options, |
1441 | "cgroup monitoring only available in system-wide mode"); | |
1442 | ||
023695d9 | 1443 | } |
b757bb09 AH |
1444 | if (rec->opts.record_switch_events && |
1445 | !perf_can_record_switch_events()) { | |
c7118369 NK |
1446 | ui__error("kernel does not support recording context switch events\n"); |
1447 | parse_options_usage(record_usage, record_options, "switch-events", 0); | |
1448 | return -EINVAL; | |
b757bb09 | 1449 | } |
023695d9 | 1450 | |
eca857ab WN |
1451 | if (rec->switch_output) |
1452 | rec->timestamp_filename = true; | |
1453 | ||
ef149c25 AH |
1454 | if (!rec->itr) { |
1455 | rec->itr = auxtrace_record__init(rec->evlist, &err); | |
1456 | if (err) | |
1457 | return err; | |
1458 | } | |
1459 | ||
2dd6d8a1 AH |
1460 | err = auxtrace_parse_snapshot_options(rec->itr, &rec->opts, |
1461 | rec->opts.auxtrace_snapshot_opts); | |
1462 | if (err) | |
1463 | return err; | |
1464 | ||
d7888573 WN |
1465 | err = bpf__setup_stdout(rec->evlist); |
1466 | if (err) { | |
1467 | bpf__strerror_setup_stdout(rec->evlist, err, errbuf, sizeof(errbuf)); | |
1468 | pr_err("ERROR: Setup BPF stdout failed: %s\n", | |
1469 | errbuf); | |
1470 | return err; | |
1471 | } | |
1472 | ||
ef149c25 AH |
1473 | err = -ENOMEM; |
1474 | ||
0a7e6d1b | 1475 | symbol__init(NULL); |
baa2f6ce | 1476 | |
ec80fde7 | 1477 | if (symbol_conf.kptr_restrict) |
646aaea6 ACM |
1478 | pr_warning( |
1479 | "WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted,\n" | |
1480 | "check /proc/sys/kernel/kptr_restrict.\n\n" | |
1481 | "Samples in kernel functions may not be resolved if a suitable vmlinux\n" | |
1482 | "file is not found in the buildid cache or in the vmlinux path.\n\n" | |
1483 | "Samples in kernel modules won't be resolved at all.\n\n" | |
1484 | "If some relocation was applied (e.g. kexec) symbols may be misresolved\n" | |
1485 | "even with a suitable vmlinux or kallsyms file.\n\n"); | |
ec80fde7 | 1486 | |
0c1d46a8 | 1487 | if (rec->no_buildid_cache || rec->no_buildid) { |
a1ac1d3c | 1488 | disable_buildid_cache(); |
0c1d46a8 WN |
1489 | } else if (rec->switch_output) { |
1490 | /* | |
1491 | * In 'perf record --switch-output', disable buildid | |
1492 | * generation by default to reduce data file switching | |
1493 | * overhead. Still generate buildid if they are required | |
1494 | * explicitly using | |
1495 | * | |
1496 | * perf record --signal-trigger --no-no-buildid \ | |
1497 | * --no-no-buildid-cache | |
1498 | * | |
1499 | * Following code equals to: | |
1500 | * | |
1501 | * if ((rec->no_buildid || !rec->no_buildid_set) && | |
1502 | * (rec->no_buildid_cache || !rec->no_buildid_cache_set)) | |
1503 | * disable_buildid_cache(); | |
1504 | */ | |
1505 | bool disable = true; | |
1506 | ||
1507 | if (rec->no_buildid_set && !rec->no_buildid) | |
1508 | disable = false; | |
1509 | if (rec->no_buildid_cache_set && !rec->no_buildid_cache) | |
1510 | disable = false; | |
1511 | if (disable) { | |
1512 | rec->no_buildid = true; | |
1513 | rec->no_buildid_cache = true; | |
1514 | disable_buildid_cache(); | |
1515 | } | |
1516 | } | |
655000e7 | 1517 | |
3e2be2da ACM |
1518 | if (rec->evlist->nr_entries == 0 && |
1519 | perf_evlist__add_default(rec->evlist) < 0) { | |
69aad6f1 ACM |
1520 | pr_err("Not enough memory for event selector list\n"); |
1521 | goto out_symbol_exit; | |
bbd36e5e | 1522 | } |
0e9b20b8 | 1523 | |
69e7e5b0 AH |
1524 | if (rec->opts.target.tid && !rec->opts.no_inherit_set) |
1525 | rec->opts.no_inherit = true; | |
1526 | ||
602ad878 | 1527 | err = target__validate(&rec->opts.target); |
16ad2ffb | 1528 | if (err) { |
602ad878 | 1529 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
16ad2ffb NK |
1530 | ui__warning("%s", errbuf); |
1531 | } | |
1532 | ||
602ad878 | 1533 | err = target__parse_uid(&rec->opts.target); |
16ad2ffb NK |
1534 | if (err) { |
1535 | int saved_errno = errno; | |
4bd0f2d2 | 1536 | |
602ad878 | 1537 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
3780f488 | 1538 | ui__error("%s", errbuf); |
16ad2ffb NK |
1539 | |
1540 | err = -saved_errno; | |
8fa60e1f | 1541 | goto out_symbol_exit; |
16ad2ffb | 1542 | } |
0d37aa34 | 1543 | |
16ad2ffb | 1544 | err = -ENOMEM; |
3e2be2da | 1545 | if (perf_evlist__create_maps(rec->evlist, &rec->opts.target) < 0) |
dd7927f4 | 1546 | usage_with_options(record_usage, record_options); |
69aad6f1 | 1547 | |
ef149c25 AH |
1548 | err = auxtrace_record__options(rec->itr, rec->evlist, &rec->opts); |
1549 | if (err) | |
1550 | goto out_symbol_exit; | |
1551 | ||
6156681b NK |
1552 | /* |
1553 | * We take all buildids when the file contains | |
1554 | * AUX area tracing data because we do not decode the | |
1555 | * trace because it would take too long. | |
1556 | */ | |
1557 | if (rec->opts.full_auxtrace) | |
1558 | rec->buildid_all = true; | |
1559 | ||
b4006796 | 1560 | if (record_opts__config(&rec->opts)) { |
39d17dac | 1561 | err = -EINVAL; |
03ad9747 | 1562 | goto out_symbol_exit; |
7e4ff9e3 MG |
1563 | } |
1564 | ||
d20deb64 | 1565 | err = __cmd_record(&record, argc, argv); |
d65a458b | 1566 | out_symbol_exit: |
45604710 | 1567 | perf_evlist__delete(rec->evlist); |
d65a458b | 1568 | symbol__exit(); |
ef149c25 | 1569 | auxtrace_record__free(rec->itr); |
39d17dac | 1570 | return err; |
0e9b20b8 | 1571 | } |
2dd6d8a1 AH |
1572 | |
1573 | static void snapshot_sig_handler(int sig __maybe_unused) | |
1574 | { | |
5f9cf599 WN |
1575 | if (trigger_is_ready(&auxtrace_snapshot_trigger)) { |
1576 | trigger_hit(&auxtrace_snapshot_trigger); | |
1577 | auxtrace_record__snapshot_started = 1; | |
1578 | if (auxtrace_record__snapshot_start(record.itr)) | |
1579 | trigger_error(&auxtrace_snapshot_trigger); | |
1580 | } | |
3c1cb7e3 WN |
1581 | |
1582 | if (trigger_is_ready(&switch_output_trigger)) | |
1583 | trigger_hit(&switch_output_trigger); | |
2dd6d8a1 | 1584 | } |