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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" |
0e9b20b8 | 14 | #include "util/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" |
7c6a1c65 | 30 | |
97124d5e | 31 | #include <unistd.h> |
de9ac07b | 32 | #include <sched.h> |
a41794cd | 33 | #include <sys/mman.h> |
de9ac07b | 34 | |
78da39fa | 35 | |
8c6f45a7 | 36 | struct record { |
45694aa7 | 37 | struct perf_tool tool; |
b4006796 | 38 | struct record_opts opts; |
d20deb64 | 39 | u64 bytes_written; |
f5fc1412 | 40 | struct perf_data_file file; |
d20deb64 ACM |
41 | struct perf_evlist *evlist; |
42 | struct perf_session *session; | |
43 | const char *progname; | |
d20deb64 | 44 | int realtime_prio; |
d20deb64 ACM |
45 | bool no_buildid; |
46 | bool no_buildid_cache; | |
d20deb64 | 47 | long samples; |
0f82ebc4 | 48 | }; |
a21ca2ca | 49 | |
8c6f45a7 | 50 | static int record__write(struct record *rec, void *bf, size_t size) |
f5970550 | 51 | { |
cf8b2e69 | 52 | if (perf_data_file__write(rec->session->file, bf, size) < 0) { |
50a9b868 JO |
53 | pr_err("failed to write perf data, error: %m\n"); |
54 | return -1; | |
f5970550 | 55 | } |
8d3eca20 | 56 | |
cf8b2e69 | 57 | rec->bytes_written += size; |
8d3eca20 | 58 | return 0; |
f5970550 PZ |
59 | } |
60 | ||
45694aa7 | 61 | static int process_synthesized_event(struct perf_tool *tool, |
d20deb64 | 62 | union perf_event *event, |
1d037ca1 IT |
63 | struct perf_sample *sample __maybe_unused, |
64 | struct machine *machine __maybe_unused) | |
234fbbf5 | 65 | { |
8c6f45a7 ACM |
66 | struct record *rec = container_of(tool, struct record, tool); |
67 | return record__write(rec, event, event->header.size); | |
234fbbf5 ACM |
68 | } |
69 | ||
e5685730 | 70 | static int record__mmap_read(struct record *rec, int idx) |
de9ac07b | 71 | { |
e5685730 | 72 | struct perf_mmap *md = &rec->evlist->mmap[idx]; |
7b8283b5 DA |
73 | u64 head = perf_mmap__read_head(md); |
74 | u64 old = md->prev; | |
918512b4 | 75 | unsigned char *data = md->base + page_size; |
de9ac07b PZ |
76 | unsigned long size; |
77 | void *buf; | |
8d3eca20 | 78 | int rc = 0; |
de9ac07b | 79 | |
dc82009a | 80 | if (old == head) |
8d3eca20 | 81 | return 0; |
dc82009a | 82 | |
d20deb64 | 83 | rec->samples++; |
de9ac07b PZ |
84 | |
85 | size = head - old; | |
86 | ||
87 | if ((old & md->mask) + size != (head & md->mask)) { | |
88 | buf = &data[old & md->mask]; | |
89 | size = md->mask + 1 - (old & md->mask); | |
90 | old += size; | |
021e9f47 | 91 | |
8c6f45a7 | 92 | if (record__write(rec, buf, size) < 0) { |
8d3eca20 DA |
93 | rc = -1; |
94 | goto out; | |
95 | } | |
de9ac07b PZ |
96 | } |
97 | ||
98 | buf = &data[old & md->mask]; | |
99 | size = head - old; | |
100 | old += size; | |
021e9f47 | 101 | |
8c6f45a7 | 102 | if (record__write(rec, buf, size) < 0) { |
8d3eca20 DA |
103 | rc = -1; |
104 | goto out; | |
105 | } | |
de9ac07b PZ |
106 | |
107 | md->prev = old; | |
e5685730 | 108 | perf_evlist__mmap_consume(rec->evlist, idx); |
8d3eca20 DA |
109 | out: |
110 | return rc; | |
de9ac07b PZ |
111 | } |
112 | ||
113 | static volatile int done = 0; | |
f7b7c26e | 114 | static volatile int signr = -1; |
33e49ea7 | 115 | static volatile int child_finished = 0; |
de9ac07b | 116 | |
16c8a109 | 117 | static void sig_handler(int sig) |
de9ac07b | 118 | { |
33e49ea7 AK |
119 | if (sig == SIGCHLD) |
120 | child_finished = 1; | |
45604710 NK |
121 | else |
122 | signr = sig; | |
33e49ea7 | 123 | |
16c8a109 | 124 | done = 1; |
f7b7c26e PZ |
125 | } |
126 | ||
45604710 | 127 | static void record__sig_exit(void) |
f7b7c26e | 128 | { |
45604710 | 129 | if (signr == -1) |
f7b7c26e PZ |
130 | return; |
131 | ||
132 | signal(signr, SIG_DFL); | |
45604710 | 133 | raise(signr); |
de9ac07b PZ |
134 | } |
135 | ||
8c6f45a7 | 136 | static int record__open(struct record *rec) |
dd7927f4 | 137 | { |
56e52e85 | 138 | char msg[512]; |
6a4bb04c | 139 | struct perf_evsel *pos; |
d20deb64 ACM |
140 | struct perf_evlist *evlist = rec->evlist; |
141 | struct perf_session *session = rec->session; | |
b4006796 | 142 | struct record_opts *opts = &rec->opts; |
8d3eca20 | 143 | int rc = 0; |
dd7927f4 | 144 | |
f77a9518 | 145 | perf_evlist__config(evlist, opts); |
cac21425 | 146 | |
0050f7aa | 147 | evlist__for_each(evlist, pos) { |
dd7927f4 | 148 | try_again: |
6a4bb04c | 149 | if (perf_evsel__open(pos, evlist->cpus, evlist->threads) < 0) { |
56e52e85 | 150 | if (perf_evsel__fallback(pos, errno, msg, sizeof(msg))) { |
d6d901c2 | 151 | if (verbose) |
c0a54341 | 152 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
153 | goto try_again; |
154 | } | |
ca6a4258 | 155 | |
56e52e85 ACM |
156 | rc = -errno; |
157 | perf_evsel__open_strerror(pos, &opts->target, | |
158 | errno, msg, sizeof(msg)); | |
159 | ui__error("%s\n", msg); | |
8d3eca20 | 160 | goto out; |
c171b552 LZ |
161 | } |
162 | } | |
a43d3f08 | 163 | |
23d4aad4 ACM |
164 | if (perf_evlist__apply_filters(evlist, &pos)) { |
165 | error("failed to set filter \"%s\" on event %s with %d (%s)\n", | |
166 | pos->filter, perf_evsel__name(pos), errno, | |
35550da3 | 167 | strerror_r(errno, msg, sizeof(msg))); |
8d3eca20 DA |
168 | rc = -1; |
169 | goto out; | |
0a102479 FW |
170 | } |
171 | ||
18e60939 | 172 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
8d3eca20 DA |
173 | if (errno == EPERM) { |
174 | pr_err("Permission error mapping pages.\n" | |
175 | "Consider increasing " | |
176 | "/proc/sys/kernel/perf_event_mlock_kb,\n" | |
177 | "or try again with a smaller value of -m/--mmap_pages.\n" | |
53653d70 | 178 | "(current value: %u)\n", opts->mmap_pages); |
8d3eca20 | 179 | rc = -errno; |
8d3eca20 | 180 | } else { |
35550da3 MH |
181 | pr_err("failed to mmap with %d (%s)\n", errno, |
182 | strerror_r(errno, msg, sizeof(msg))); | |
8d3eca20 DA |
183 | rc = -errno; |
184 | } | |
185 | goto out; | |
18e60939 | 186 | } |
0a27d7f9 | 187 | |
563aecb2 | 188 | session->evlist = evlist; |
7b56cce2 | 189 | perf_session__set_id_hdr_size(session); |
8d3eca20 DA |
190 | out: |
191 | return rc; | |
16c8a109 PZ |
192 | } |
193 | ||
e3d59112 NK |
194 | static int process_sample_event(struct perf_tool *tool, |
195 | union perf_event *event, | |
196 | struct perf_sample *sample, | |
197 | struct perf_evsel *evsel, | |
198 | struct machine *machine) | |
199 | { | |
200 | struct record *rec = container_of(tool, struct record, tool); | |
201 | ||
202 | rec->samples++; | |
203 | ||
204 | return build_id__mark_dso_hit(tool, event, sample, evsel, machine); | |
205 | } | |
206 | ||
8c6f45a7 | 207 | static int process_buildids(struct record *rec) |
6122e4e4 | 208 | { |
f5fc1412 JO |
209 | struct perf_data_file *file = &rec->file; |
210 | struct perf_session *session = rec->session; | |
6122e4e4 | 211 | |
42aa276f | 212 | u64 size = lseek(perf_data_file__fd(file), 0, SEEK_CUR); |
9f591fd7 ACM |
213 | if (size == 0) |
214 | return 0; | |
215 | ||
4ac30cf7 NK |
216 | file->size = size; |
217 | ||
00dc8657 NK |
218 | /* |
219 | * During this process, it'll load kernel map and replace the | |
220 | * dso->long_name to a real pathname it found. In this case | |
221 | * we prefer the vmlinux path like | |
222 | * /lib/modules/3.16.4/build/vmlinux | |
223 | * | |
224 | * rather than build-id path (in debug directory). | |
225 | * $HOME/.debug/.build-id/f0/6e17aa50adf4d00b88925e03775de107611551 | |
226 | */ | |
227 | symbol_conf.ignore_vmlinux_buildid = true; | |
228 | ||
b7b61cbe | 229 | return perf_session__process_events(session); |
6122e4e4 ACM |
230 | } |
231 | ||
8115d60c | 232 | static void perf_event__synthesize_guest_os(struct machine *machine, void *data) |
a1645ce1 ZY |
233 | { |
234 | int err; | |
45694aa7 | 235 | struct perf_tool *tool = data; |
a1645ce1 ZY |
236 | /* |
237 | *As for guest kernel when processing subcommand record&report, | |
238 | *we arrange module mmap prior to guest kernel mmap and trigger | |
239 | *a preload dso because default guest module symbols are loaded | |
240 | *from guest kallsyms instead of /lib/modules/XXX/XXX. This | |
241 | *method is used to avoid symbol missing when the first addr is | |
242 | *in module instead of in guest kernel. | |
243 | */ | |
45694aa7 | 244 | err = perf_event__synthesize_modules(tool, process_synthesized_event, |
743eb868 | 245 | machine); |
a1645ce1 ZY |
246 | if (err < 0) |
247 | pr_err("Couldn't record guest kernel [%d]'s reference" | |
23346f21 | 248 | " relocation symbol.\n", machine->pid); |
a1645ce1 | 249 | |
a1645ce1 ZY |
250 | /* |
251 | * We use _stext for guest kernel because guest kernel's /proc/kallsyms | |
252 | * have no _text sometimes. | |
253 | */ | |
45694aa7 | 254 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
0ae617be | 255 | machine); |
a1645ce1 ZY |
256 | if (err < 0) |
257 | pr_err("Couldn't record guest kernel [%d]'s reference" | |
23346f21 | 258 | " relocation symbol.\n", machine->pid); |
a1645ce1 ZY |
259 | } |
260 | ||
98402807 FW |
261 | static struct perf_event_header finished_round_event = { |
262 | .size = sizeof(struct perf_event_header), | |
263 | .type = PERF_RECORD_FINISHED_ROUND, | |
264 | }; | |
265 | ||
8c6f45a7 | 266 | static int record__mmap_read_all(struct record *rec) |
98402807 | 267 | { |
dcabb507 | 268 | u64 bytes_written = rec->bytes_written; |
0e2e63dd | 269 | int i; |
8d3eca20 | 270 | int rc = 0; |
98402807 | 271 | |
d20deb64 | 272 | for (i = 0; i < rec->evlist->nr_mmaps; i++) { |
8d3eca20 | 273 | if (rec->evlist->mmap[i].base) { |
e5685730 | 274 | if (record__mmap_read(rec, i) != 0) { |
8d3eca20 DA |
275 | rc = -1; |
276 | goto out; | |
277 | } | |
278 | } | |
98402807 FW |
279 | } |
280 | ||
dcabb507 JO |
281 | /* |
282 | * Mark the round finished in case we wrote | |
283 | * at least one event. | |
284 | */ | |
285 | if (bytes_written != rec->bytes_written) | |
286 | rc = record__write(rec, &finished_round_event, sizeof(finished_round_event)); | |
8d3eca20 DA |
287 | |
288 | out: | |
289 | return rc; | |
98402807 FW |
290 | } |
291 | ||
8c6f45a7 | 292 | static void record__init_features(struct record *rec) |
57706abc | 293 | { |
57706abc DA |
294 | struct perf_session *session = rec->session; |
295 | int feat; | |
296 | ||
297 | for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) | |
298 | perf_header__set_feat(&session->header, feat); | |
299 | ||
300 | if (rec->no_buildid) | |
301 | perf_header__clear_feat(&session->header, HEADER_BUILD_ID); | |
302 | ||
3e2be2da | 303 | if (!have_tracepoints(&rec->evlist->entries)) |
57706abc DA |
304 | perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); |
305 | ||
306 | if (!rec->opts.branch_stack) | |
307 | perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); | |
308 | } | |
309 | ||
f33cbe72 ACM |
310 | static volatile int workload_exec_errno; |
311 | ||
312 | /* | |
313 | * perf_evlist__prepare_workload will send a SIGUSR1 | |
314 | * if the fork fails, since we asked by setting its | |
315 | * want_signal to true. | |
316 | */ | |
45604710 NK |
317 | static void workload_exec_failed_signal(int signo __maybe_unused, |
318 | siginfo_t *info, | |
f33cbe72 ACM |
319 | void *ucontext __maybe_unused) |
320 | { | |
321 | workload_exec_errno = info->si_value.sival_int; | |
322 | done = 1; | |
f33cbe72 ACM |
323 | child_finished = 1; |
324 | } | |
325 | ||
8c6f45a7 | 326 | static int __cmd_record(struct record *rec, int argc, const char **argv) |
16c8a109 | 327 | { |
57706abc | 328 | int err; |
45604710 | 329 | int status = 0; |
8b412664 | 330 | unsigned long waking = 0; |
46be604b | 331 | const bool forks = argc > 0; |
23346f21 | 332 | struct machine *machine; |
45694aa7 | 333 | struct perf_tool *tool = &rec->tool; |
b4006796 | 334 | struct record_opts *opts = &rec->opts; |
f5fc1412 | 335 | struct perf_data_file *file = &rec->file; |
d20deb64 | 336 | struct perf_session *session; |
6dcf45ef | 337 | bool disabled = false, draining = false; |
42aa276f | 338 | int fd; |
de9ac07b | 339 | |
d20deb64 | 340 | rec->progname = argv[0]; |
33e49ea7 | 341 | |
45604710 | 342 | atexit(record__sig_exit); |
f5970550 PZ |
343 | signal(SIGCHLD, sig_handler); |
344 | signal(SIGINT, sig_handler); | |
804f7ac7 | 345 | signal(SIGTERM, sig_handler); |
f5970550 | 346 | |
b7b61cbe | 347 | session = perf_session__new(file, false, tool); |
94c744b6 | 348 | if (session == NULL) { |
ffa91880 | 349 | pr_err("Perf session creation failed.\n"); |
a9a70bbc ACM |
350 | return -1; |
351 | } | |
352 | ||
42aa276f | 353 | fd = perf_data_file__fd(file); |
d20deb64 ACM |
354 | rec->session = session; |
355 | ||
8c6f45a7 | 356 | record__init_features(rec); |
330aa675 | 357 | |
d4db3f16 | 358 | if (forks) { |
3e2be2da | 359 | err = perf_evlist__prepare_workload(rec->evlist, &opts->target, |
f5fc1412 | 360 | argv, file->is_pipe, |
735f7e0b | 361 | workload_exec_failed_signal); |
35b9d88e ACM |
362 | if (err < 0) { |
363 | pr_err("Couldn't run the workload!\n"); | |
45604710 | 364 | status = err; |
35b9d88e | 365 | goto out_delete_session; |
856e9660 | 366 | } |
856e9660 PZ |
367 | } |
368 | ||
8c6f45a7 | 369 | if (record__open(rec) != 0) { |
8d3eca20 | 370 | err = -1; |
45604710 | 371 | goto out_child; |
8d3eca20 | 372 | } |
de9ac07b | 373 | |
3e2be2da | 374 | if (!rec->evlist->nr_groups) |
a8bb559b NK |
375 | perf_header__clear_feat(&session->header, HEADER_GROUP_DESC); |
376 | ||
f5fc1412 | 377 | if (file->is_pipe) { |
42aa276f | 378 | err = perf_header__write_pipe(fd); |
529870e3 | 379 | if (err < 0) |
45604710 | 380 | goto out_child; |
563aecb2 | 381 | } else { |
42aa276f | 382 | err = perf_session__write_header(session, rec->evlist, fd, false); |
d5eed904 | 383 | if (err < 0) |
45604710 | 384 | goto out_child; |
56b03f3c ACM |
385 | } |
386 | ||
d3665498 | 387 | if (!rec->no_buildid |
e20960c0 | 388 | && !perf_header__has_feat(&session->header, HEADER_BUILD_ID)) { |
d3665498 | 389 | pr_err("Couldn't generate buildids. " |
e20960c0 | 390 | "Use --no-buildid to profile anyway.\n"); |
8d3eca20 | 391 | err = -1; |
45604710 | 392 | goto out_child; |
e20960c0 RR |
393 | } |
394 | ||
34ba5122 | 395 | machine = &session->machines.host; |
743eb868 | 396 | |
f5fc1412 | 397 | if (file->is_pipe) { |
45694aa7 | 398 | err = perf_event__synthesize_attrs(tool, session, |
d20deb64 | 399 | process_synthesized_event); |
2c46dbb5 TZ |
400 | if (err < 0) { |
401 | pr_err("Couldn't synthesize attrs.\n"); | |
45604710 | 402 | goto out_child; |
2c46dbb5 | 403 | } |
cd19a035 | 404 | |
3e2be2da | 405 | if (have_tracepoints(&rec->evlist->entries)) { |
63e0c771 TZ |
406 | /* |
407 | * FIXME err <= 0 here actually means that | |
408 | * there were no tracepoints so its not really | |
409 | * an error, just that we don't need to | |
410 | * synthesize anything. We really have to | |
411 | * return this more properly and also | |
412 | * propagate errors that now are calling die() | |
413 | */ | |
42aa276f | 414 | err = perf_event__synthesize_tracing_data(tool, fd, rec->evlist, |
743eb868 | 415 | process_synthesized_event); |
63e0c771 TZ |
416 | if (err <= 0) { |
417 | pr_err("Couldn't record tracing data.\n"); | |
45604710 | 418 | goto out_child; |
63e0c771 | 419 | } |
f34b9001 | 420 | rec->bytes_written += err; |
63e0c771 | 421 | } |
2c46dbb5 TZ |
422 | } |
423 | ||
45694aa7 | 424 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
0ae617be | 425 | machine); |
c1a3a4b9 ACM |
426 | if (err < 0) |
427 | pr_err("Couldn't record kernel reference relocation symbol\n" | |
428 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" | |
429 | "Check /proc/kallsyms permission or run as root.\n"); | |
b7cece76 | 430 | |
45694aa7 | 431 | err = perf_event__synthesize_modules(tool, process_synthesized_event, |
743eb868 | 432 | machine); |
c1a3a4b9 ACM |
433 | if (err < 0) |
434 | pr_err("Couldn't record kernel module information.\n" | |
435 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" | |
436 | "Check /proc/modules permission or run as root.\n"); | |
437 | ||
7e383de4 | 438 | if (perf_guest) { |
876650e6 ACM |
439 | machines__process_guests(&session->machines, |
440 | perf_event__synthesize_guest_os, tool); | |
7e383de4 | 441 | } |
7c6a1c65 | 442 | |
3e2be2da | 443 | err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads, |
a33fbd56 | 444 | process_synthesized_event, opts->sample_address); |
8d3eca20 | 445 | if (err != 0) |
45604710 | 446 | goto out_child; |
8d3eca20 | 447 | |
d20deb64 | 448 | if (rec->realtime_prio) { |
de9ac07b PZ |
449 | struct sched_param param; |
450 | ||
d20deb64 | 451 | param.sched_priority = rec->realtime_prio; |
de9ac07b | 452 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
6beba7ad | 453 | pr_err("Could not set realtime priority.\n"); |
8d3eca20 | 454 | err = -1; |
45604710 | 455 | goto out_child; |
de9ac07b PZ |
456 | } |
457 | } | |
458 | ||
774cb499 JO |
459 | /* |
460 | * When perf is starting the traced process, all the events | |
461 | * (apart from group members) have enable_on_exec=1 set, | |
462 | * so don't spoil it by prematurely enabling them. | |
463 | */ | |
6619a53e | 464 | if (!target__none(&opts->target) && !opts->initial_delay) |
3e2be2da | 465 | perf_evlist__enable(rec->evlist); |
764e16a3 | 466 | |
856e9660 PZ |
467 | /* |
468 | * Let the child rip | |
469 | */ | |
735f7e0b | 470 | if (forks) |
3e2be2da | 471 | perf_evlist__start_workload(rec->evlist); |
856e9660 | 472 | |
6619a53e AK |
473 | if (opts->initial_delay) { |
474 | usleep(opts->initial_delay * 1000); | |
475 | perf_evlist__enable(rec->evlist); | |
476 | } | |
477 | ||
649c48a9 | 478 | for (;;) { |
d20deb64 | 479 | int hits = rec->samples; |
de9ac07b | 480 | |
8c6f45a7 | 481 | if (record__mmap_read_all(rec) < 0) { |
8d3eca20 | 482 | err = -1; |
45604710 | 483 | goto out_child; |
8d3eca20 | 484 | } |
de9ac07b | 485 | |
d20deb64 | 486 | if (hits == rec->samples) { |
6dcf45ef | 487 | if (done || draining) |
649c48a9 | 488 | break; |
f66a889d | 489 | err = perf_evlist__poll(rec->evlist, -1); |
a515114f JO |
490 | /* |
491 | * Propagate error, only if there's any. Ignore positive | |
492 | * number of returned events and interrupt error. | |
493 | */ | |
494 | if (err > 0 || (err < 0 && errno == EINTR)) | |
45604710 | 495 | err = 0; |
8b412664 | 496 | waking++; |
6dcf45ef ACM |
497 | |
498 | if (perf_evlist__filter_pollfd(rec->evlist, POLLERR | POLLHUP) == 0) | |
499 | draining = true; | |
8b412664 PZ |
500 | } |
501 | ||
774cb499 JO |
502 | /* |
503 | * When perf is starting the traced process, at the end events | |
504 | * die with the process and we wait for that. Thus no need to | |
505 | * disable events in this case. | |
506 | */ | |
602ad878 | 507 | if (done && !disabled && !target__none(&opts->target)) { |
3e2be2da | 508 | perf_evlist__disable(rec->evlist); |
2711926a JO |
509 | disabled = true; |
510 | } | |
de9ac07b PZ |
511 | } |
512 | ||
f33cbe72 | 513 | if (forks && workload_exec_errno) { |
35550da3 | 514 | char msg[STRERR_BUFSIZE]; |
f33cbe72 ACM |
515 | const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); |
516 | pr_err("Workload failed: %s\n", emsg); | |
517 | err = -1; | |
45604710 | 518 | goto out_child; |
f33cbe72 ACM |
519 | } |
520 | ||
e3d59112 | 521 | if (!quiet) |
45604710 | 522 | fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking); |
b44308f5 | 523 | |
45604710 NK |
524 | out_child: |
525 | if (forks) { | |
526 | int exit_status; | |
addc2785 | 527 | |
45604710 NK |
528 | if (!child_finished) |
529 | kill(rec->evlist->workload.pid, SIGTERM); | |
530 | ||
531 | wait(&exit_status); | |
532 | ||
533 | if (err < 0) | |
534 | status = err; | |
535 | else if (WIFEXITED(exit_status)) | |
536 | status = WEXITSTATUS(exit_status); | |
537 | else if (WIFSIGNALED(exit_status)) | |
538 | signr = WTERMSIG(exit_status); | |
539 | } else | |
540 | status = err; | |
541 | ||
e3d59112 NK |
542 | /* this will be recalculated during process_buildids() */ |
543 | rec->samples = 0; | |
544 | ||
45604710 NK |
545 | if (!err && !file->is_pipe) { |
546 | rec->session->header.data_size += rec->bytes_written; | |
547 | ||
548 | if (!rec->no_buildid) | |
549 | process_buildids(rec); | |
42aa276f | 550 | perf_session__write_header(rec->session, rec->evlist, fd, true); |
45604710 | 551 | } |
39d17dac | 552 | |
e3d59112 NK |
553 | if (!err && !quiet) { |
554 | char samples[128]; | |
555 | ||
556 | if (rec->samples) | |
557 | scnprintf(samples, sizeof(samples), | |
558 | " (%" PRIu64 " samples)", rec->samples); | |
559 | else | |
560 | samples[0] = '\0'; | |
561 | ||
562 | fprintf(stderr, "[ perf record: Captured and wrote %.3f MB %s%s ]\n", | |
563 | perf_data_file__size(file) / 1024.0 / 1024.0, | |
564 | file->path, samples); | |
565 | } | |
566 | ||
39d17dac ACM |
567 | out_delete_session: |
568 | perf_session__delete(session); | |
45604710 | 569 | return status; |
de9ac07b | 570 | } |
0e9b20b8 | 571 | |
bdfebd84 RAV |
572 | #define BRANCH_OPT(n, m) \ |
573 | { .name = n, .mode = (m) } | |
574 | ||
575 | #define BRANCH_END { .name = NULL } | |
576 | ||
577 | struct branch_mode { | |
578 | const char *name; | |
579 | int mode; | |
580 | }; | |
581 | ||
582 | static const struct branch_mode branch_modes[] = { | |
583 | BRANCH_OPT("u", PERF_SAMPLE_BRANCH_USER), | |
584 | BRANCH_OPT("k", PERF_SAMPLE_BRANCH_KERNEL), | |
585 | BRANCH_OPT("hv", PERF_SAMPLE_BRANCH_HV), | |
586 | BRANCH_OPT("any", PERF_SAMPLE_BRANCH_ANY), | |
587 | BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL), | |
588 | BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN), | |
589 | BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL), | |
0126d493 AK |
590 | BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX), |
591 | BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX), | |
592 | BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX), | |
0fffa5df | 593 | BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND), |
bdfebd84 RAV |
594 | BRANCH_END |
595 | }; | |
596 | ||
597 | static int | |
a5aabdac | 598 | parse_branch_stack(const struct option *opt, const char *str, int unset) |
bdfebd84 RAV |
599 | { |
600 | #define ONLY_PLM \ | |
601 | (PERF_SAMPLE_BRANCH_USER |\ | |
602 | PERF_SAMPLE_BRANCH_KERNEL |\ | |
603 | PERF_SAMPLE_BRANCH_HV) | |
604 | ||
605 | uint64_t *mode = (uint64_t *)opt->value; | |
606 | const struct branch_mode *br; | |
a5aabdac | 607 | char *s, *os = NULL, *p; |
bdfebd84 RAV |
608 | int ret = -1; |
609 | ||
a5aabdac SE |
610 | if (unset) |
611 | return 0; | |
bdfebd84 | 612 | |
a5aabdac SE |
613 | /* |
614 | * cannot set it twice, -b + --branch-filter for instance | |
615 | */ | |
616 | if (*mode) | |
bdfebd84 RAV |
617 | return -1; |
618 | ||
a5aabdac SE |
619 | /* str may be NULL in case no arg is passed to -b */ |
620 | if (str) { | |
621 | /* because str is read-only */ | |
622 | s = os = strdup(str); | |
623 | if (!s) | |
624 | return -1; | |
625 | ||
626 | for (;;) { | |
627 | p = strchr(s, ','); | |
628 | if (p) | |
629 | *p = '\0'; | |
630 | ||
631 | for (br = branch_modes; br->name; br++) { | |
632 | if (!strcasecmp(s, br->name)) | |
633 | break; | |
634 | } | |
635 | if (!br->name) { | |
636 | ui__warning("unknown branch filter %s," | |
637 | " check man page\n", s); | |
638 | goto error; | |
639 | } | |
bdfebd84 | 640 | |
a5aabdac | 641 | *mode |= br->mode; |
bdfebd84 | 642 | |
a5aabdac SE |
643 | if (!p) |
644 | break; | |
bdfebd84 | 645 | |
a5aabdac SE |
646 | s = p + 1; |
647 | } | |
bdfebd84 RAV |
648 | } |
649 | ret = 0; | |
650 | ||
a5aabdac | 651 | /* default to any branch */ |
bdfebd84 | 652 | if ((*mode & ~ONLY_PLM) == 0) { |
a5aabdac | 653 | *mode = PERF_SAMPLE_BRANCH_ANY; |
bdfebd84 RAV |
654 | } |
655 | error: | |
656 | free(os); | |
657 | return ret; | |
658 | } | |
659 | ||
72a128aa | 660 | static void callchain_debug(void) |
09b0fd45 | 661 | { |
aad2b21c | 662 | static const char *str[CALLCHAIN_MAX] = { "NONE", "FP", "DWARF", "LBR" }; |
a601fdff | 663 | |
72a128aa | 664 | pr_debug("callchain: type %s\n", str[callchain_param.record_mode]); |
26d33022 | 665 | |
72a128aa | 666 | if (callchain_param.record_mode == CALLCHAIN_DWARF) |
09b0fd45 | 667 | pr_debug("callchain: stack dump size %d\n", |
72a128aa | 668 | callchain_param.dump_size); |
09b0fd45 JO |
669 | } |
670 | ||
72a128aa | 671 | int record_parse_callchain_opt(const struct option *opt __maybe_unused, |
09b0fd45 JO |
672 | const char *arg, |
673 | int unset) | |
674 | { | |
09b0fd45 JO |
675 | int ret; |
676 | ||
72a128aa | 677 | callchain_param.enabled = !unset; |
eb853e80 | 678 | |
09b0fd45 JO |
679 | /* --no-call-graph */ |
680 | if (unset) { | |
72a128aa | 681 | callchain_param.record_mode = CALLCHAIN_NONE; |
09b0fd45 JO |
682 | pr_debug("callchain: disabled\n"); |
683 | return 0; | |
684 | } | |
685 | ||
f7f084f4 | 686 | ret = parse_callchain_record_opt(arg); |
26d33022 | 687 | if (!ret) |
72a128aa | 688 | callchain_debug(); |
26d33022 JO |
689 | |
690 | return ret; | |
691 | } | |
692 | ||
72a128aa | 693 | int record_callchain_opt(const struct option *opt __maybe_unused, |
09b0fd45 JO |
694 | const char *arg __maybe_unused, |
695 | int unset __maybe_unused) | |
696 | { | |
72a128aa | 697 | callchain_param.enabled = true; |
09b0fd45 | 698 | |
72a128aa NK |
699 | if (callchain_param.record_mode == CALLCHAIN_NONE) |
700 | callchain_param.record_mode = CALLCHAIN_FP; | |
eb853e80 | 701 | |
72a128aa | 702 | callchain_debug(); |
09b0fd45 JO |
703 | return 0; |
704 | } | |
705 | ||
eb853e80 JO |
706 | static int perf_record_config(const char *var, const char *value, void *cb) |
707 | { | |
eb853e80 | 708 | if (!strcmp(var, "record.call-graph")) |
5a2e5e85 | 709 | var = "call-graph.record-mode"; /* fall-through */ |
eb853e80 JO |
710 | |
711 | return perf_default_config(var, value, cb); | |
712 | } | |
713 | ||
814c8c38 PZ |
714 | struct clockid_map { |
715 | const char *name; | |
716 | int clockid; | |
717 | }; | |
718 | ||
719 | #define CLOCKID_MAP(n, c) \ | |
720 | { .name = n, .clockid = (c), } | |
721 | ||
722 | #define CLOCKID_END { .name = NULL, } | |
723 | ||
724 | ||
725 | /* | |
726 | * Add the missing ones, we need to build on many distros... | |
727 | */ | |
728 | #ifndef CLOCK_MONOTONIC_RAW | |
729 | #define CLOCK_MONOTONIC_RAW 4 | |
730 | #endif | |
731 | #ifndef CLOCK_BOOTTIME | |
732 | #define CLOCK_BOOTTIME 7 | |
733 | #endif | |
734 | #ifndef CLOCK_TAI | |
735 | #define CLOCK_TAI 11 | |
736 | #endif | |
737 | ||
738 | static const struct clockid_map clockids[] = { | |
739 | /* available for all events, NMI safe */ | |
740 | CLOCKID_MAP("monotonic", CLOCK_MONOTONIC), | |
741 | CLOCKID_MAP("monotonic_raw", CLOCK_MONOTONIC_RAW), | |
742 | ||
743 | /* available for some events */ | |
744 | CLOCKID_MAP("realtime", CLOCK_REALTIME), | |
745 | CLOCKID_MAP("boottime", CLOCK_BOOTTIME), | |
746 | CLOCKID_MAP("tai", CLOCK_TAI), | |
747 | ||
748 | /* available for the lazy */ | |
749 | CLOCKID_MAP("mono", CLOCK_MONOTONIC), | |
750 | CLOCKID_MAP("raw", CLOCK_MONOTONIC_RAW), | |
751 | CLOCKID_MAP("real", CLOCK_REALTIME), | |
752 | CLOCKID_MAP("boot", CLOCK_BOOTTIME), | |
753 | ||
754 | CLOCKID_END, | |
755 | }; | |
756 | ||
757 | static int parse_clockid(const struct option *opt, const char *str, int unset) | |
758 | { | |
759 | struct record_opts *opts = (struct record_opts *)opt->value; | |
760 | const struct clockid_map *cm; | |
761 | const char *ostr = str; | |
762 | ||
763 | if (unset) { | |
764 | opts->use_clockid = 0; | |
765 | return 0; | |
766 | } | |
767 | ||
768 | /* no arg passed */ | |
769 | if (!str) | |
770 | return 0; | |
771 | ||
772 | /* no setting it twice */ | |
773 | if (opts->use_clockid) | |
774 | return -1; | |
775 | ||
776 | opts->use_clockid = true; | |
777 | ||
778 | /* if its a number, we're done */ | |
779 | if (sscanf(str, "%d", &opts->clockid) == 1) | |
780 | return 0; | |
781 | ||
782 | /* allow a "CLOCK_" prefix to the name */ | |
783 | if (!strncasecmp(str, "CLOCK_", 6)) | |
784 | str += 6; | |
785 | ||
786 | for (cm = clockids; cm->name; cm++) { | |
787 | if (!strcasecmp(str, cm->name)) { | |
788 | opts->clockid = cm->clockid; | |
789 | return 0; | |
790 | } | |
791 | } | |
792 | ||
793 | opts->use_clockid = false; | |
794 | ui__warning("unknown clockid %s, check man page\n", ostr); | |
795 | return -1; | |
796 | } | |
797 | ||
e5b2c207 | 798 | static const char * const __record_usage[] = { |
9e096753 MG |
799 | "perf record [<options>] [<command>]", |
800 | "perf record [<options>] -- <command> [<options>]", | |
0e9b20b8 IM |
801 | NULL |
802 | }; | |
e5b2c207 | 803 | const char * const *record_usage = __record_usage; |
0e9b20b8 | 804 | |
d20deb64 | 805 | /* |
8c6f45a7 ACM |
806 | * XXX Ideally would be local to cmd_record() and passed to a record__new |
807 | * because we need to have access to it in record__exit, that is called | |
d20deb64 ACM |
808 | * after cmd_record() exits, but since record_options need to be accessible to |
809 | * builtin-script, leave it here. | |
810 | * | |
811 | * At least we don't ouch it in all the other functions here directly. | |
812 | * | |
813 | * Just say no to tons of global variables, sigh. | |
814 | */ | |
8c6f45a7 | 815 | static struct record record = { |
d20deb64 | 816 | .opts = { |
8affc2b8 | 817 | .sample_time = true, |
d20deb64 ACM |
818 | .mmap_pages = UINT_MAX, |
819 | .user_freq = UINT_MAX, | |
820 | .user_interval = ULLONG_MAX, | |
447a6013 | 821 | .freq = 4000, |
d1cb9fce NK |
822 | .target = { |
823 | .uses_mmap = true, | |
3aa5939d | 824 | .default_per_cpu = true, |
d1cb9fce | 825 | }, |
d20deb64 | 826 | }, |
e3d59112 NK |
827 | .tool = { |
828 | .sample = process_sample_event, | |
829 | .fork = perf_event__process_fork, | |
830 | .comm = perf_event__process_comm, | |
831 | .mmap = perf_event__process_mmap, | |
832 | .mmap2 = perf_event__process_mmap2, | |
833 | }, | |
d20deb64 | 834 | }; |
7865e817 | 835 | |
09b0fd45 | 836 | #define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: " |
61eaa3be | 837 | |
9ff125d1 | 838 | #ifdef HAVE_DWARF_UNWIND_SUPPORT |
aad2b21c | 839 | const char record_callchain_help[] = CALLCHAIN_HELP "fp dwarf lbr"; |
61eaa3be | 840 | #else |
aad2b21c | 841 | const char record_callchain_help[] = CALLCHAIN_HELP "fp lbr"; |
61eaa3be ACM |
842 | #endif |
843 | ||
d20deb64 ACM |
844 | /* |
845 | * XXX Will stay a global variable till we fix builtin-script.c to stop messing | |
846 | * with it and switch to use the library functions in perf_evlist that came | |
b4006796 | 847 | * from builtin-record.c, i.e. use record_opts, |
d20deb64 ACM |
848 | * perf_evlist__prepare_workload, etc instead of fork+exec'in 'perf record', |
849 | * using pipes, etc. | |
850 | */ | |
e5b2c207 | 851 | struct option __record_options[] = { |
d20deb64 | 852 | OPT_CALLBACK('e', "event", &record.evlist, "event", |
86847b62 | 853 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 854 | parse_events_option), |
d20deb64 | 855 | OPT_CALLBACK(0, "filter", &record.evlist, "filter", |
c171b552 | 856 | "event filter", parse_filter), |
bea03405 | 857 | OPT_STRING('p', "pid", &record.opts.target.pid, "pid", |
d6d901c2 | 858 | "record events on existing process id"), |
bea03405 | 859 | OPT_STRING('t', "tid", &record.opts.target.tid, "tid", |
d6d901c2 | 860 | "record events on existing thread id"), |
d20deb64 | 861 | OPT_INTEGER('r', "realtime", &record.realtime_prio, |
0e9b20b8 | 862 | "collect data with this RT SCHED_FIFO priority"), |
509051ea | 863 | OPT_BOOLEAN(0, "no-buffering", &record.opts.no_buffering, |
acac03fa | 864 | "collect data without buffering"), |
d20deb64 | 865 | OPT_BOOLEAN('R', "raw-samples", &record.opts.raw_samples, |
daac07b2 | 866 | "collect raw sample records from all opened counters"), |
bea03405 | 867 | OPT_BOOLEAN('a', "all-cpus", &record.opts.target.system_wide, |
0e9b20b8 | 868 | "system-wide collection from all CPUs"), |
bea03405 | 869 | OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu", |
c45c6ea2 | 870 | "list of cpus to monitor"), |
d20deb64 | 871 | OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"), |
f5fc1412 | 872 | OPT_STRING('o', "output", &record.file.path, "file", |
abaff32a | 873 | "output file name"), |
69e7e5b0 AH |
874 | OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit, |
875 | &record.opts.no_inherit_set, | |
876 | "child tasks do not inherit counters"), | |
d20deb64 | 877 | OPT_UINTEGER('F', "freq", &record.opts.user_freq, "profile at this frequency"), |
994a1f78 JO |
878 | OPT_CALLBACK('m', "mmap-pages", &record.opts.mmap_pages, "pages", |
879 | "number of mmap data pages", | |
880 | perf_evlist__parse_mmap_pages), | |
d20deb64 | 881 | OPT_BOOLEAN(0, "group", &record.opts.group, |
43bece79 | 882 | "put the counters into a counter group"), |
09b0fd45 JO |
883 | OPT_CALLBACK_NOOPT('g', NULL, &record.opts, |
884 | NULL, "enables call-graph recording" , | |
885 | &record_callchain_opt), | |
886 | OPT_CALLBACK(0, "call-graph", &record.opts, | |
887 | "mode[,dump_size]", record_callchain_help, | |
888 | &record_parse_callchain_opt), | |
c0555642 | 889 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 890 | "be more verbose (show counter open errors, etc)"), |
b44308f5 | 891 | OPT_BOOLEAN('q', "quiet", &quiet, "don't print any message"), |
d20deb64 | 892 | OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat, |
649c48a9 | 893 | "per thread counts"), |
d20deb64 | 894 | OPT_BOOLEAN('d', "data", &record.opts.sample_address, |
4bba828d | 895 | "Sample addresses"), |
d20deb64 | 896 | OPT_BOOLEAN('T', "timestamp", &record.opts.sample_time, "Sample timestamps"), |
3e76ac78 | 897 | OPT_BOOLEAN('P', "period", &record.opts.period, "Sample period"), |
d20deb64 | 898 | OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples, |
649c48a9 | 899 | "don't sample"), |
d20deb64 | 900 | OPT_BOOLEAN('N', "no-buildid-cache", &record.no_buildid_cache, |
a1ac1d3c | 901 | "do not update the buildid cache"), |
d20deb64 | 902 | OPT_BOOLEAN('B', "no-buildid", &record.no_buildid, |
baa2f6ce | 903 | "do not collect buildids in perf.data"), |
d20deb64 | 904 | OPT_CALLBACK('G', "cgroup", &record.evlist, "name", |
023695d9 SE |
905 | "monitor event in cgroup name only", |
906 | parse_cgroups), | |
a6205a35 | 907 | OPT_UINTEGER('D', "delay", &record.opts.initial_delay, |
6619a53e | 908 | "ms to wait before starting measurement after program start"), |
bea03405 NK |
909 | OPT_STRING('u', "uid", &record.opts.target.uid_str, "user", |
910 | "user to profile"), | |
a5aabdac SE |
911 | |
912 | OPT_CALLBACK_NOOPT('b', "branch-any", &record.opts.branch_stack, | |
913 | "branch any", "sample any taken branches", | |
914 | parse_branch_stack), | |
915 | ||
916 | OPT_CALLBACK('j', "branch-filter", &record.opts.branch_stack, | |
917 | "branch filter mask", "branch stack filter modes", | |
bdfebd84 | 918 | parse_branch_stack), |
05484298 AK |
919 | OPT_BOOLEAN('W', "weight", &record.opts.sample_weight, |
920 | "sample by weight (on special events only)"), | |
475eeab9 AK |
921 | OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction, |
922 | "sample transaction flags (special events only)"), | |
3aa5939d AH |
923 | OPT_BOOLEAN(0, "per-thread", &record.opts.target.per_thread, |
924 | "use per-thread mmaps"), | |
4b6c5177 SE |
925 | OPT_BOOLEAN('I', "intr-regs", &record.opts.sample_intr_regs, |
926 | "Sample machine registers on interrupt"), | |
85c273d2 AK |
927 | OPT_BOOLEAN(0, "running-time", &record.opts.running_time, |
928 | "Record running/enabled time of read (:S) events"), | |
814c8c38 PZ |
929 | OPT_CALLBACK('k', "clockid", &record.opts, |
930 | "clockid", "clockid to use for events, see clock_gettime()", | |
931 | parse_clockid), | |
0e9b20b8 IM |
932 | OPT_END() |
933 | }; | |
934 | ||
e5b2c207 NK |
935 | struct option *record_options = __record_options; |
936 | ||
1d037ca1 | 937 | int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) |
0e9b20b8 | 938 | { |
69aad6f1 | 939 | int err = -ENOMEM; |
8c6f45a7 | 940 | struct record *rec = &record; |
16ad2ffb | 941 | char errbuf[BUFSIZ]; |
0e9b20b8 | 942 | |
3e2be2da ACM |
943 | rec->evlist = perf_evlist__new(); |
944 | if (rec->evlist == NULL) | |
361c99a6 ACM |
945 | return -ENOMEM; |
946 | ||
eb853e80 JO |
947 | perf_config(perf_record_config, rec); |
948 | ||
bca647aa | 949 | argc = parse_options(argc, argv, record_options, record_usage, |
655000e7 | 950 | PARSE_OPT_STOP_AT_NON_OPTION); |
602ad878 | 951 | if (!argc && target__none(&rec->opts.target)) |
bca647aa | 952 | usage_with_options(record_usage, record_options); |
0e9b20b8 | 953 | |
bea03405 | 954 | if (nr_cgroups && !rec->opts.target.system_wide) { |
3780f488 NK |
955 | ui__error("cgroup monitoring only available in" |
956 | " system-wide mode\n"); | |
023695d9 SE |
957 | usage_with_options(record_usage, record_options); |
958 | } | |
959 | ||
0a7e6d1b | 960 | symbol__init(NULL); |
baa2f6ce | 961 | |
ec80fde7 | 962 | if (symbol_conf.kptr_restrict) |
646aaea6 ACM |
963 | pr_warning( |
964 | "WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted,\n" | |
965 | "check /proc/sys/kernel/kptr_restrict.\n\n" | |
966 | "Samples in kernel functions may not be resolved if a suitable vmlinux\n" | |
967 | "file is not found in the buildid cache or in the vmlinux path.\n\n" | |
968 | "Samples in kernel modules won't be resolved at all.\n\n" | |
969 | "If some relocation was applied (e.g. kexec) symbols may be misresolved\n" | |
970 | "even with a suitable vmlinux or kallsyms file.\n\n"); | |
ec80fde7 | 971 | |
d20deb64 | 972 | if (rec->no_buildid_cache || rec->no_buildid) |
a1ac1d3c | 973 | disable_buildid_cache(); |
655000e7 | 974 | |
3e2be2da ACM |
975 | if (rec->evlist->nr_entries == 0 && |
976 | perf_evlist__add_default(rec->evlist) < 0) { | |
69aad6f1 ACM |
977 | pr_err("Not enough memory for event selector list\n"); |
978 | goto out_symbol_exit; | |
bbd36e5e | 979 | } |
0e9b20b8 | 980 | |
69e7e5b0 AH |
981 | if (rec->opts.target.tid && !rec->opts.no_inherit_set) |
982 | rec->opts.no_inherit = true; | |
983 | ||
602ad878 | 984 | err = target__validate(&rec->opts.target); |
16ad2ffb | 985 | if (err) { |
602ad878 | 986 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
16ad2ffb NK |
987 | ui__warning("%s", errbuf); |
988 | } | |
989 | ||
602ad878 | 990 | err = target__parse_uid(&rec->opts.target); |
16ad2ffb NK |
991 | if (err) { |
992 | int saved_errno = errno; | |
4bd0f2d2 | 993 | |
602ad878 | 994 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
3780f488 | 995 | ui__error("%s", errbuf); |
16ad2ffb NK |
996 | |
997 | err = -saved_errno; | |
8fa60e1f | 998 | goto out_symbol_exit; |
16ad2ffb | 999 | } |
0d37aa34 | 1000 | |
16ad2ffb | 1001 | err = -ENOMEM; |
3e2be2da | 1002 | if (perf_evlist__create_maps(rec->evlist, &rec->opts.target) < 0) |
dd7927f4 | 1003 | usage_with_options(record_usage, record_options); |
69aad6f1 | 1004 | |
b4006796 | 1005 | if (record_opts__config(&rec->opts)) { |
39d17dac | 1006 | err = -EINVAL; |
03ad9747 | 1007 | goto out_symbol_exit; |
7e4ff9e3 MG |
1008 | } |
1009 | ||
d20deb64 | 1010 | err = __cmd_record(&record, argc, argv); |
d65a458b | 1011 | out_symbol_exit: |
45604710 | 1012 | perf_evlist__delete(rec->evlist); |
d65a458b | 1013 | symbol__exit(); |
39d17dac | 1014 | return err; |
0e9b20b8 | 1015 | } |