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