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 | |
7c6a1c65 | 17 | #include "util/header.h" |
66e274f3 | 18 | #include "util/event.h" |
361c99a6 | 19 | #include "util/evlist.h" |
69aad6f1 | 20 | #include "util/evsel.h" |
8f28827a | 21 | #include "util/debug.h" |
94c744b6 | 22 | #include "util/session.h" |
45694aa7 | 23 | #include "util/tool.h" |
8d06367f | 24 | #include "util/symbol.h" |
a12b51c4 | 25 | #include "util/cpumap.h" |
fd78260b | 26 | #include "util/thread_map.h" |
f5fc1412 | 27 | #include "util/data.h" |
7c6a1c65 | 28 | |
97124d5e | 29 | #include <unistd.h> |
de9ac07b | 30 | #include <sched.h> |
a41794cd | 31 | #include <sys/mman.h> |
de9ac07b | 32 | |
89fe808a | 33 | #ifndef HAVE_ON_EXIT_SUPPORT |
78da39fa BR |
34 | #ifndef ATEXIT_MAX |
35 | #define ATEXIT_MAX 32 | |
36 | #endif | |
37 | static int __on_exit_count = 0; | |
38 | typedef void (*on_exit_func_t) (int, void *); | |
39 | static on_exit_func_t __on_exit_funcs[ATEXIT_MAX]; | |
40 | static void *__on_exit_args[ATEXIT_MAX]; | |
41 | static int __exitcode = 0; | |
42 | static void __handle_on_exit_funcs(void); | |
43 | static int on_exit(on_exit_func_t function, void *arg); | |
44 | #define exit(x) (exit)(__exitcode = (x)) | |
45 | ||
46 | static int on_exit(on_exit_func_t function, void *arg) | |
47 | { | |
48 | if (__on_exit_count == ATEXIT_MAX) | |
49 | return -ENOMEM; | |
50 | else if (__on_exit_count == 0) | |
51 | atexit(__handle_on_exit_funcs); | |
52 | __on_exit_funcs[__on_exit_count] = function; | |
53 | __on_exit_args[__on_exit_count++] = arg; | |
54 | return 0; | |
55 | } | |
56 | ||
57 | static void __handle_on_exit_funcs(void) | |
58 | { | |
59 | int i; | |
60 | for (i = 0; i < __on_exit_count; i++) | |
61 | __on_exit_funcs[i] (__exitcode, __on_exit_args[i]); | |
62 | } | |
63 | #endif | |
64 | ||
8c6f45a7 | 65 | struct record { |
45694aa7 | 66 | struct perf_tool tool; |
b4006796 | 67 | struct record_opts opts; |
d20deb64 | 68 | u64 bytes_written; |
f5fc1412 | 69 | struct perf_data_file file; |
d20deb64 ACM |
70 | struct perf_evlist *evlist; |
71 | struct perf_session *session; | |
72 | const char *progname; | |
d20deb64 | 73 | int realtime_prio; |
d20deb64 ACM |
74 | bool no_buildid; |
75 | bool no_buildid_cache; | |
d20deb64 | 76 | long samples; |
0f82ebc4 | 77 | }; |
a21ca2ca | 78 | |
8c6f45a7 | 79 | static int record__write(struct record *rec, void *bf, size_t size) |
f5970550 | 80 | { |
cf8b2e69 | 81 | if (perf_data_file__write(rec->session->file, bf, size) < 0) { |
50a9b868 JO |
82 | pr_err("failed to write perf data, error: %m\n"); |
83 | return -1; | |
f5970550 | 84 | } |
8d3eca20 | 85 | |
cf8b2e69 | 86 | rec->bytes_written += size; |
8d3eca20 | 87 | return 0; |
f5970550 PZ |
88 | } |
89 | ||
45694aa7 | 90 | static int process_synthesized_event(struct perf_tool *tool, |
d20deb64 | 91 | union perf_event *event, |
1d037ca1 IT |
92 | struct perf_sample *sample __maybe_unused, |
93 | struct machine *machine __maybe_unused) | |
234fbbf5 | 94 | { |
8c6f45a7 ACM |
95 | struct record *rec = container_of(tool, struct record, tool); |
96 | return record__write(rec, event, event->header.size); | |
234fbbf5 ACM |
97 | } |
98 | ||
8c6f45a7 | 99 | static int record__mmap_read(struct record *rec, struct perf_mmap *md) |
de9ac07b | 100 | { |
744bd8aa | 101 | unsigned int head = perf_mmap__read_head(md); |
de9ac07b | 102 | unsigned int old = md->prev; |
918512b4 | 103 | unsigned char *data = md->base + page_size; |
de9ac07b PZ |
104 | unsigned long size; |
105 | void *buf; | |
8d3eca20 | 106 | int rc = 0; |
de9ac07b | 107 | |
dc82009a | 108 | if (old == head) |
8d3eca20 | 109 | return 0; |
dc82009a | 110 | |
d20deb64 | 111 | rec->samples++; |
de9ac07b PZ |
112 | |
113 | size = head - old; | |
114 | ||
115 | if ((old & md->mask) + size != (head & md->mask)) { | |
116 | buf = &data[old & md->mask]; | |
117 | size = md->mask + 1 - (old & md->mask); | |
118 | old += size; | |
021e9f47 | 119 | |
8c6f45a7 | 120 | if (record__write(rec, buf, size) < 0) { |
8d3eca20 DA |
121 | rc = -1; |
122 | goto out; | |
123 | } | |
de9ac07b PZ |
124 | } |
125 | ||
126 | buf = &data[old & md->mask]; | |
127 | size = head - old; | |
128 | old += size; | |
021e9f47 | 129 | |
8c6f45a7 | 130 | if (record__write(rec, buf, size) < 0) { |
8d3eca20 DA |
131 | rc = -1; |
132 | goto out; | |
133 | } | |
de9ac07b PZ |
134 | |
135 | md->prev = old; | |
115d2d89 | 136 | perf_mmap__write_tail(md, old); |
8d3eca20 DA |
137 | |
138 | out: | |
139 | return rc; | |
de9ac07b PZ |
140 | } |
141 | ||
142 | static volatile int done = 0; | |
f7b7c26e | 143 | static volatile int signr = -1; |
33e49ea7 | 144 | static volatile int child_finished = 0; |
de9ac07b | 145 | |
16c8a109 | 146 | static void sig_handler(int sig) |
de9ac07b | 147 | { |
33e49ea7 AK |
148 | if (sig == SIGCHLD) |
149 | child_finished = 1; | |
150 | ||
16c8a109 | 151 | done = 1; |
f7b7c26e PZ |
152 | signr = sig; |
153 | } | |
154 | ||
8c6f45a7 | 155 | static void record__sig_exit(int exit_status __maybe_unused, void *arg) |
f7b7c26e | 156 | { |
8c6f45a7 | 157 | struct record *rec = arg; |
33e49ea7 AK |
158 | int status; |
159 | ||
d20deb64 | 160 | if (rec->evlist->workload.pid > 0) { |
33e49ea7 | 161 | if (!child_finished) |
d20deb64 | 162 | kill(rec->evlist->workload.pid, SIGTERM); |
33e49ea7 AK |
163 | |
164 | wait(&status); | |
165 | if (WIFSIGNALED(status)) | |
d20deb64 | 166 | psignal(WTERMSIG(status), rec->progname); |
33e49ea7 | 167 | } |
933da83a | 168 | |
18483b81 | 169 | if (signr == -1 || signr == SIGUSR1) |
f7b7c26e PZ |
170 | return; |
171 | ||
172 | signal(signr, SIG_DFL); | |
de9ac07b PZ |
173 | } |
174 | ||
8c6f45a7 | 175 | static int record__open(struct record *rec) |
dd7927f4 | 176 | { |
56e52e85 | 177 | char msg[512]; |
6a4bb04c | 178 | struct perf_evsel *pos; |
d20deb64 ACM |
179 | struct perf_evlist *evlist = rec->evlist; |
180 | struct perf_session *session = rec->session; | |
b4006796 | 181 | struct record_opts *opts = &rec->opts; |
8d3eca20 | 182 | int rc = 0; |
dd7927f4 | 183 | |
f77a9518 | 184 | perf_evlist__config(evlist, opts); |
cac21425 | 185 | |
0050f7aa | 186 | evlist__for_each(evlist, pos) { |
dd7927f4 | 187 | try_again: |
6a4bb04c | 188 | if (perf_evsel__open(pos, evlist->cpus, evlist->threads) < 0) { |
56e52e85 | 189 | if (perf_evsel__fallback(pos, errno, msg, sizeof(msg))) { |
d6d901c2 | 190 | if (verbose) |
c0a54341 | 191 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
192 | goto try_again; |
193 | } | |
ca6a4258 | 194 | |
56e52e85 ACM |
195 | rc = -errno; |
196 | perf_evsel__open_strerror(pos, &opts->target, | |
197 | errno, msg, sizeof(msg)); | |
198 | ui__error("%s\n", msg); | |
8d3eca20 | 199 | goto out; |
c171b552 LZ |
200 | } |
201 | } | |
a43d3f08 | 202 | |
1491a632 | 203 | if (perf_evlist__apply_filters(evlist)) { |
0a102479 FW |
204 | error("failed to set filter with %d (%s)\n", errno, |
205 | strerror(errno)); | |
8d3eca20 DA |
206 | rc = -1; |
207 | goto out; | |
0a102479 FW |
208 | } |
209 | ||
18e60939 | 210 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
8d3eca20 DA |
211 | if (errno == EPERM) { |
212 | pr_err("Permission error mapping pages.\n" | |
213 | "Consider increasing " | |
214 | "/proc/sys/kernel/perf_event_mlock_kb,\n" | |
215 | "or try again with a smaller value of -m/--mmap_pages.\n" | |
53653d70 | 216 | "(current value: %u)\n", opts->mmap_pages); |
8d3eca20 | 217 | rc = -errno; |
8d3eca20 DA |
218 | } else { |
219 | pr_err("failed to mmap with %d (%s)\n", errno, strerror(errno)); | |
220 | rc = -errno; | |
221 | } | |
222 | goto out; | |
18e60939 | 223 | } |
0a27d7f9 | 224 | |
563aecb2 | 225 | session->evlist = evlist; |
7b56cce2 | 226 | perf_session__set_id_hdr_size(session); |
8d3eca20 DA |
227 | out: |
228 | return rc; | |
16c8a109 PZ |
229 | } |
230 | ||
8c6f45a7 | 231 | static int process_buildids(struct record *rec) |
6122e4e4 | 232 | { |
f5fc1412 JO |
233 | struct perf_data_file *file = &rec->file; |
234 | struct perf_session *session = rec->session; | |
7ab75cff | 235 | u64 start = session->header.data_offset; |
6122e4e4 | 236 | |
f5fc1412 | 237 | u64 size = lseek(file->fd, 0, SEEK_CUR); |
9f591fd7 ACM |
238 | if (size == 0) |
239 | return 0; | |
240 | ||
7ab75cff DA |
241 | return __perf_session__process_events(session, start, |
242 | size - start, | |
6122e4e4 ACM |
243 | size, &build_id__mark_dso_hit_ops); |
244 | } | |
245 | ||
8c6f45a7 | 246 | static void record__exit(int status, void *arg) |
f5970550 | 247 | { |
8c6f45a7 | 248 | struct record *rec = arg; |
f5fc1412 | 249 | struct perf_data_file *file = &rec->file; |
d20deb64 | 250 | |
8d3eca20 DA |
251 | if (status != 0) |
252 | return; | |
253 | ||
f5fc1412 | 254 | if (!file->is_pipe) { |
d20deb64 ACM |
255 | rec->session->header.data_size += rec->bytes_written; |
256 | ||
257 | if (!rec->no_buildid) | |
258 | process_buildids(rec); | |
259 | perf_session__write_header(rec->session, rec->evlist, | |
f5fc1412 | 260 | file->fd, true); |
d20deb64 ACM |
261 | perf_session__delete(rec->session); |
262 | perf_evlist__delete(rec->evlist); | |
d65a458b | 263 | symbol__exit(); |
c7929e47 | 264 | } |
f5970550 PZ |
265 | } |
266 | ||
8115d60c | 267 | static void perf_event__synthesize_guest_os(struct machine *machine, void *data) |
a1645ce1 ZY |
268 | { |
269 | int err; | |
45694aa7 | 270 | struct perf_tool *tool = data; |
a1645ce1 ZY |
271 | /* |
272 | *As for guest kernel when processing subcommand record&report, | |
273 | *we arrange module mmap prior to guest kernel mmap and trigger | |
274 | *a preload dso because default guest module symbols are loaded | |
275 | *from guest kallsyms instead of /lib/modules/XXX/XXX. This | |
276 | *method is used to avoid symbol missing when the first addr is | |
277 | *in module instead of in guest kernel. | |
278 | */ | |
45694aa7 | 279 | err = perf_event__synthesize_modules(tool, process_synthesized_event, |
743eb868 | 280 | machine); |
a1645ce1 ZY |
281 | if (err < 0) |
282 | pr_err("Couldn't record guest kernel [%d]'s reference" | |
23346f21 | 283 | " relocation symbol.\n", machine->pid); |
a1645ce1 | 284 | |
a1645ce1 ZY |
285 | /* |
286 | * We use _stext for guest kernel because guest kernel's /proc/kallsyms | |
287 | * have no _text sometimes. | |
288 | */ | |
45694aa7 | 289 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
743eb868 | 290 | machine, "_text"); |
a1645ce1 | 291 | if (err < 0) |
45694aa7 | 292 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
743eb868 | 293 | machine, "_stext"); |
a1645ce1 ZY |
294 | if (err < 0) |
295 | pr_err("Couldn't record guest kernel [%d]'s reference" | |
23346f21 | 296 | " relocation symbol.\n", machine->pid); |
a1645ce1 ZY |
297 | } |
298 | ||
98402807 FW |
299 | static struct perf_event_header finished_round_event = { |
300 | .size = sizeof(struct perf_event_header), | |
301 | .type = PERF_RECORD_FINISHED_ROUND, | |
302 | }; | |
303 | ||
8c6f45a7 | 304 | static int record__mmap_read_all(struct record *rec) |
98402807 | 305 | { |
0e2e63dd | 306 | int i; |
8d3eca20 | 307 | int rc = 0; |
98402807 | 308 | |
d20deb64 | 309 | for (i = 0; i < rec->evlist->nr_mmaps; i++) { |
8d3eca20 | 310 | if (rec->evlist->mmap[i].base) { |
8c6f45a7 | 311 | if (record__mmap_read(rec, &rec->evlist->mmap[i]) != 0) { |
8d3eca20 DA |
312 | rc = -1; |
313 | goto out; | |
314 | } | |
315 | } | |
98402807 FW |
316 | } |
317 | ||
2eeaaa09 | 318 | if (perf_header__has_feat(&rec->session->header, HEADER_TRACING_DATA)) |
8c6f45a7 | 319 | rc = record__write(rec, &finished_round_event, sizeof(finished_round_event)); |
8d3eca20 DA |
320 | |
321 | out: | |
322 | return rc; | |
98402807 FW |
323 | } |
324 | ||
8c6f45a7 | 325 | static void record__init_features(struct record *rec) |
57706abc | 326 | { |
57706abc DA |
327 | struct perf_session *session = rec->session; |
328 | int feat; | |
329 | ||
330 | for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++) | |
331 | perf_header__set_feat(&session->header, feat); | |
332 | ||
333 | if (rec->no_buildid) | |
334 | perf_header__clear_feat(&session->header, HEADER_BUILD_ID); | |
335 | ||
3e2be2da | 336 | if (!have_tracepoints(&rec->evlist->entries)) |
57706abc DA |
337 | perf_header__clear_feat(&session->header, HEADER_TRACING_DATA); |
338 | ||
339 | if (!rec->opts.branch_stack) | |
340 | perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK); | |
341 | } | |
342 | ||
f33cbe72 ACM |
343 | static volatile int workload_exec_errno; |
344 | ||
345 | /* | |
346 | * perf_evlist__prepare_workload will send a SIGUSR1 | |
347 | * if the fork fails, since we asked by setting its | |
348 | * want_signal to true. | |
349 | */ | |
350 | static void workload_exec_failed_signal(int signo, siginfo_t *info, | |
351 | void *ucontext __maybe_unused) | |
352 | { | |
353 | workload_exec_errno = info->si_value.sival_int; | |
354 | done = 1; | |
355 | signr = signo; | |
356 | child_finished = 1; | |
357 | } | |
358 | ||
8c6f45a7 | 359 | static int __cmd_record(struct record *rec, int argc, const char **argv) |
16c8a109 | 360 | { |
57706abc | 361 | int err; |
8b412664 | 362 | unsigned long waking = 0; |
46be604b | 363 | const bool forks = argc > 0; |
23346f21 | 364 | struct machine *machine; |
45694aa7 | 365 | struct perf_tool *tool = &rec->tool; |
b4006796 | 366 | struct record_opts *opts = &rec->opts; |
f5fc1412 | 367 | struct perf_data_file *file = &rec->file; |
d20deb64 | 368 | struct perf_session *session; |
2711926a | 369 | bool disabled = false; |
de9ac07b | 370 | |
d20deb64 | 371 | rec->progname = argv[0]; |
33e49ea7 | 372 | |
8c6f45a7 | 373 | on_exit(record__sig_exit, rec); |
f5970550 PZ |
374 | signal(SIGCHLD, sig_handler); |
375 | signal(SIGINT, sig_handler); | |
804f7ac7 | 376 | signal(SIGTERM, sig_handler); |
f5970550 | 377 | |
f5fc1412 | 378 | session = perf_session__new(file, false, NULL); |
94c744b6 | 379 | if (session == NULL) { |
a9a70bbc ACM |
380 | pr_err("Not enough memory for reading perf file header\n"); |
381 | return -1; | |
382 | } | |
383 | ||
d20deb64 ACM |
384 | rec->session = session; |
385 | ||
8c6f45a7 | 386 | record__init_features(rec); |
330aa675 | 387 | |
d4db3f16 | 388 | if (forks) { |
3e2be2da | 389 | err = perf_evlist__prepare_workload(rec->evlist, &opts->target, |
f5fc1412 | 390 | argv, file->is_pipe, |
735f7e0b | 391 | workload_exec_failed_signal); |
35b9d88e ACM |
392 | if (err < 0) { |
393 | pr_err("Couldn't run the workload!\n"); | |
394 | goto out_delete_session; | |
856e9660 | 395 | } |
856e9660 PZ |
396 | } |
397 | ||
8c6f45a7 | 398 | if (record__open(rec) != 0) { |
8d3eca20 DA |
399 | err = -1; |
400 | goto out_delete_session; | |
401 | } | |
de9ac07b | 402 | |
3e2be2da | 403 | if (!rec->evlist->nr_groups) |
a8bb559b NK |
404 | perf_header__clear_feat(&session->header, HEADER_GROUP_DESC); |
405 | ||
712a4b60 | 406 | /* |
8c6f45a7 | 407 | * perf_session__delete(session) will be called at record__exit() |
712a4b60 | 408 | */ |
8c6f45a7 | 409 | on_exit(record__exit, rec); |
712a4b60 | 410 | |
f5fc1412 JO |
411 | if (file->is_pipe) { |
412 | err = perf_header__write_pipe(file->fd); | |
529870e3 | 413 | if (err < 0) |
8d3eca20 | 414 | goto out_delete_session; |
563aecb2 | 415 | } else { |
3e2be2da | 416 | err = perf_session__write_header(session, rec->evlist, |
f5fc1412 | 417 | file->fd, false); |
d5eed904 | 418 | if (err < 0) |
8d3eca20 | 419 | goto out_delete_session; |
56b03f3c ACM |
420 | } |
421 | ||
d3665498 | 422 | if (!rec->no_buildid |
e20960c0 | 423 | && !perf_header__has_feat(&session->header, HEADER_BUILD_ID)) { |
d3665498 | 424 | pr_err("Couldn't generate buildids. " |
e20960c0 | 425 | "Use --no-buildid to profile anyway.\n"); |
8d3eca20 DA |
426 | err = -1; |
427 | goto out_delete_session; | |
e20960c0 RR |
428 | } |
429 | ||
34ba5122 | 430 | machine = &session->machines.host; |
743eb868 | 431 | |
f5fc1412 | 432 | if (file->is_pipe) { |
45694aa7 | 433 | err = perf_event__synthesize_attrs(tool, session, |
d20deb64 | 434 | process_synthesized_event); |
2c46dbb5 TZ |
435 | if (err < 0) { |
436 | pr_err("Couldn't synthesize attrs.\n"); | |
8d3eca20 | 437 | goto out_delete_session; |
2c46dbb5 | 438 | } |
cd19a035 | 439 | |
3e2be2da | 440 | if (have_tracepoints(&rec->evlist->entries)) { |
63e0c771 TZ |
441 | /* |
442 | * FIXME err <= 0 here actually means that | |
443 | * there were no tracepoints so its not really | |
444 | * an error, just that we don't need to | |
445 | * synthesize anything. We really have to | |
446 | * return this more properly and also | |
447 | * propagate errors that now are calling die() | |
448 | */ | |
3e2be2da | 449 | err = perf_event__synthesize_tracing_data(tool, file->fd, rec->evlist, |
743eb868 | 450 | process_synthesized_event); |
63e0c771 TZ |
451 | if (err <= 0) { |
452 | pr_err("Couldn't record tracing data.\n"); | |
8d3eca20 | 453 | goto out_delete_session; |
63e0c771 | 454 | } |
f34b9001 | 455 | rec->bytes_written += err; |
63e0c771 | 456 | } |
2c46dbb5 TZ |
457 | } |
458 | ||
45694aa7 | 459 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
743eb868 | 460 | machine, "_text"); |
70162138 | 461 | if (err < 0) |
45694aa7 | 462 | err = perf_event__synthesize_kernel_mmap(tool, process_synthesized_event, |
743eb868 | 463 | machine, "_stext"); |
c1a3a4b9 ACM |
464 | if (err < 0) |
465 | pr_err("Couldn't record kernel reference relocation symbol\n" | |
466 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" | |
467 | "Check /proc/kallsyms permission or run as root.\n"); | |
b7cece76 | 468 | |
45694aa7 | 469 | err = perf_event__synthesize_modules(tool, process_synthesized_event, |
743eb868 | 470 | machine); |
c1a3a4b9 ACM |
471 | if (err < 0) |
472 | pr_err("Couldn't record kernel module information.\n" | |
473 | "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n" | |
474 | "Check /proc/modules permission or run as root.\n"); | |
475 | ||
7e383de4 | 476 | if (perf_guest) { |
876650e6 ACM |
477 | machines__process_guests(&session->machines, |
478 | perf_event__synthesize_guest_os, tool); | |
7e383de4 | 479 | } |
7c6a1c65 | 480 | |
3e2be2da | 481 | err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads, |
a33fbd56 | 482 | process_synthesized_event, opts->sample_address); |
8d3eca20 DA |
483 | if (err != 0) |
484 | goto out_delete_session; | |
485 | ||
d20deb64 | 486 | if (rec->realtime_prio) { |
de9ac07b PZ |
487 | struct sched_param param; |
488 | ||
d20deb64 | 489 | param.sched_priority = rec->realtime_prio; |
de9ac07b | 490 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
6beba7ad | 491 | pr_err("Could not set realtime priority.\n"); |
8d3eca20 DA |
492 | err = -1; |
493 | goto out_delete_session; | |
de9ac07b PZ |
494 | } |
495 | } | |
496 | ||
774cb499 JO |
497 | /* |
498 | * When perf is starting the traced process, all the events | |
499 | * (apart from group members) have enable_on_exec=1 set, | |
500 | * so don't spoil it by prematurely enabling them. | |
501 | */ | |
6619a53e | 502 | if (!target__none(&opts->target) && !opts->initial_delay) |
3e2be2da | 503 | perf_evlist__enable(rec->evlist); |
764e16a3 | 504 | |
856e9660 PZ |
505 | /* |
506 | * Let the child rip | |
507 | */ | |
735f7e0b | 508 | if (forks) |
3e2be2da | 509 | perf_evlist__start_workload(rec->evlist); |
856e9660 | 510 | |
6619a53e AK |
511 | if (opts->initial_delay) { |
512 | usleep(opts->initial_delay * 1000); | |
513 | perf_evlist__enable(rec->evlist); | |
514 | } | |
515 | ||
649c48a9 | 516 | for (;;) { |
d20deb64 | 517 | int hits = rec->samples; |
de9ac07b | 518 | |
8c6f45a7 | 519 | if (record__mmap_read_all(rec) < 0) { |
8d3eca20 DA |
520 | err = -1; |
521 | goto out_delete_session; | |
522 | } | |
de9ac07b | 523 | |
d20deb64 | 524 | if (hits == rec->samples) { |
649c48a9 PZ |
525 | if (done) |
526 | break; | |
3e2be2da | 527 | err = poll(rec->evlist->pollfd, rec->evlist->nr_fds, -1); |
8b412664 PZ |
528 | waking++; |
529 | } | |
530 | ||
774cb499 JO |
531 | /* |
532 | * When perf is starting the traced process, at the end events | |
533 | * die with the process and we wait for that. Thus no need to | |
534 | * disable events in this case. | |
535 | */ | |
602ad878 | 536 | if (done && !disabled && !target__none(&opts->target)) { |
3e2be2da | 537 | perf_evlist__disable(rec->evlist); |
2711926a JO |
538 | disabled = true; |
539 | } | |
de9ac07b PZ |
540 | } |
541 | ||
f33cbe72 ACM |
542 | if (forks && workload_exec_errno) { |
543 | char msg[512]; | |
544 | const char *emsg = strerror_r(workload_exec_errno, msg, sizeof(msg)); | |
545 | pr_err("Workload failed: %s\n", emsg); | |
546 | err = -1; | |
547 | goto out_delete_session; | |
548 | } | |
549 | ||
18483b81 | 550 | if (quiet || signr == SIGUSR1) |
b44308f5 ACM |
551 | return 0; |
552 | ||
8b412664 PZ |
553 | fprintf(stderr, "[ perf record: Woken up %ld times to write data ]\n", waking); |
554 | ||
021e9f47 IM |
555 | /* |
556 | * Approximate RIP event size: 24 bytes. | |
557 | */ | |
558 | fprintf(stderr, | |
9486aa38 | 559 | "[ perf record: Captured and wrote %.3f MB %s (~%" PRIu64 " samples) ]\n", |
d20deb64 | 560 | (double)rec->bytes_written / 1024.0 / 1024.0, |
6a4d98d7 | 561 | file->path, |
d20deb64 | 562 | rec->bytes_written / 24); |
addc2785 | 563 | |
de9ac07b | 564 | return 0; |
39d17dac ACM |
565 | |
566 | out_delete_session: | |
567 | perf_session__delete(session); | |
568 | return err; | |
de9ac07b | 569 | } |
0e9b20b8 | 570 | |
bdfebd84 RAV |
571 | #define BRANCH_OPT(n, m) \ |
572 | { .name = n, .mode = (m) } | |
573 | ||
574 | #define BRANCH_END { .name = NULL } | |
575 | ||
576 | struct branch_mode { | |
577 | const char *name; | |
578 | int mode; | |
579 | }; | |
580 | ||
581 | static const struct branch_mode branch_modes[] = { | |
582 | BRANCH_OPT("u", PERF_SAMPLE_BRANCH_USER), | |
583 | BRANCH_OPT("k", PERF_SAMPLE_BRANCH_KERNEL), | |
584 | BRANCH_OPT("hv", PERF_SAMPLE_BRANCH_HV), | |
585 | BRANCH_OPT("any", PERF_SAMPLE_BRANCH_ANY), | |
586 | BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL), | |
587 | BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN), | |
588 | BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL), | |
0126d493 AK |
589 | BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX), |
590 | BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX), | |
591 | BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX), | |
bdfebd84 RAV |
592 | BRANCH_END |
593 | }; | |
594 | ||
595 | static int | |
a5aabdac | 596 | parse_branch_stack(const struct option *opt, const char *str, int unset) |
bdfebd84 RAV |
597 | { |
598 | #define ONLY_PLM \ | |
599 | (PERF_SAMPLE_BRANCH_USER |\ | |
600 | PERF_SAMPLE_BRANCH_KERNEL |\ | |
601 | PERF_SAMPLE_BRANCH_HV) | |
602 | ||
603 | uint64_t *mode = (uint64_t *)opt->value; | |
604 | const struct branch_mode *br; | |
a5aabdac | 605 | char *s, *os = NULL, *p; |
bdfebd84 RAV |
606 | int ret = -1; |
607 | ||
a5aabdac SE |
608 | if (unset) |
609 | return 0; | |
bdfebd84 | 610 | |
a5aabdac SE |
611 | /* |
612 | * cannot set it twice, -b + --branch-filter for instance | |
613 | */ | |
614 | if (*mode) | |
bdfebd84 RAV |
615 | return -1; |
616 | ||
a5aabdac SE |
617 | /* str may be NULL in case no arg is passed to -b */ |
618 | if (str) { | |
619 | /* because str is read-only */ | |
620 | s = os = strdup(str); | |
621 | if (!s) | |
622 | return -1; | |
623 | ||
624 | for (;;) { | |
625 | p = strchr(s, ','); | |
626 | if (p) | |
627 | *p = '\0'; | |
628 | ||
629 | for (br = branch_modes; br->name; br++) { | |
630 | if (!strcasecmp(s, br->name)) | |
631 | break; | |
632 | } | |
633 | if (!br->name) { | |
634 | ui__warning("unknown branch filter %s," | |
635 | " check man page\n", s); | |
636 | goto error; | |
637 | } | |
bdfebd84 | 638 | |
a5aabdac | 639 | *mode |= br->mode; |
bdfebd84 | 640 | |
a5aabdac SE |
641 | if (!p) |
642 | break; | |
bdfebd84 | 643 | |
a5aabdac SE |
644 | s = p + 1; |
645 | } | |
bdfebd84 RAV |
646 | } |
647 | ret = 0; | |
648 | ||
a5aabdac | 649 | /* default to any branch */ |
bdfebd84 | 650 | if ((*mode & ~ONLY_PLM) == 0) { |
a5aabdac | 651 | *mode = PERF_SAMPLE_BRANCH_ANY; |
bdfebd84 RAV |
652 | } |
653 | error: | |
654 | free(os); | |
655 | return ret; | |
656 | } | |
657 | ||
89fe808a | 658 | #ifdef HAVE_LIBUNWIND_SUPPORT |
26d33022 JO |
659 | static int get_stack_size(char *str, unsigned long *_size) |
660 | { | |
661 | char *endptr; | |
662 | unsigned long size; | |
663 | unsigned long max_size = round_down(USHRT_MAX, sizeof(u64)); | |
664 | ||
665 | size = strtoul(str, &endptr, 0); | |
666 | ||
667 | do { | |
668 | if (*endptr) | |
669 | break; | |
670 | ||
671 | size = round_up(size, sizeof(u64)); | |
672 | if (!size || size > max_size) | |
673 | break; | |
674 | ||
675 | *_size = size; | |
676 | return 0; | |
677 | ||
678 | } while (0); | |
679 | ||
680 | pr_err("callchain: Incorrect stack dump size (max %ld): %s\n", | |
681 | max_size, str); | |
682 | return -1; | |
683 | } | |
89fe808a | 684 | #endif /* HAVE_LIBUNWIND_SUPPORT */ |
26d33022 | 685 | |
b4006796 | 686 | int record_parse_callchain(const char *arg, struct record_opts *opts) |
26d33022 | 687 | { |
26d33022 JO |
688 | char *tok, *name, *saveptr = NULL; |
689 | char *buf; | |
690 | int ret = -1; | |
691 | ||
26d33022 JO |
692 | /* We need buffer that we know we can write to. */ |
693 | buf = malloc(strlen(arg) + 1); | |
694 | if (!buf) | |
695 | return -ENOMEM; | |
696 | ||
697 | strcpy(buf, arg); | |
698 | ||
699 | tok = strtok_r((char *)buf, ",", &saveptr); | |
700 | name = tok ? : (char *)buf; | |
701 | ||
702 | do { | |
703 | /* Framepointer style */ | |
704 | if (!strncmp(name, "fp", sizeof("fp"))) { | |
705 | if (!strtok_r(NULL, ",", &saveptr)) { | |
c5ff78c3 | 706 | opts->call_graph = CALLCHAIN_FP; |
26d33022 JO |
707 | ret = 0; |
708 | } else | |
709 | pr_err("callchain: No more arguments " | |
710 | "needed for -g fp\n"); | |
711 | break; | |
712 | ||
89fe808a | 713 | #ifdef HAVE_LIBUNWIND_SUPPORT |
26d33022 JO |
714 | /* Dwarf style */ |
715 | } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) { | |
61eaa3be ACM |
716 | const unsigned long default_stack_dump_size = 8192; |
717 | ||
26d33022 | 718 | ret = 0; |
c5ff78c3 ACM |
719 | opts->call_graph = CALLCHAIN_DWARF; |
720 | opts->stack_dump_size = default_stack_dump_size; | |
26d33022 JO |
721 | |
722 | tok = strtok_r(NULL, ",", &saveptr); | |
723 | if (tok) { | |
724 | unsigned long size = 0; | |
725 | ||
726 | ret = get_stack_size(tok, &size); | |
c5ff78c3 | 727 | opts->stack_dump_size = size; |
26d33022 | 728 | } |
89fe808a | 729 | #endif /* HAVE_LIBUNWIND_SUPPORT */ |
26d33022 | 730 | } else { |
09b0fd45 | 731 | pr_err("callchain: Unknown --call-graph option " |
26d33022 JO |
732 | "value: %s\n", arg); |
733 | break; | |
734 | } | |
735 | ||
736 | } while (0); | |
737 | ||
738 | free(buf); | |
09b0fd45 JO |
739 | return ret; |
740 | } | |
741 | ||
b4006796 | 742 | static void callchain_debug(struct record_opts *opts) |
09b0fd45 JO |
743 | { |
744 | pr_debug("callchain: type %d\n", opts->call_graph); | |
26d33022 | 745 | |
09b0fd45 JO |
746 | if (opts->call_graph == CALLCHAIN_DWARF) |
747 | pr_debug("callchain: stack dump size %d\n", | |
748 | opts->stack_dump_size); | |
749 | } | |
750 | ||
751 | int record_parse_callchain_opt(const struct option *opt, | |
752 | const char *arg, | |
753 | int unset) | |
754 | { | |
b4006796 | 755 | struct record_opts *opts = opt->value; |
09b0fd45 JO |
756 | int ret; |
757 | ||
758 | /* --no-call-graph */ | |
759 | if (unset) { | |
760 | opts->call_graph = CALLCHAIN_NONE; | |
761 | pr_debug("callchain: disabled\n"); | |
762 | return 0; | |
763 | } | |
764 | ||
765 | ret = record_parse_callchain(arg, opts); | |
26d33022 | 766 | if (!ret) |
09b0fd45 | 767 | callchain_debug(opts); |
26d33022 JO |
768 | |
769 | return ret; | |
770 | } | |
771 | ||
09b0fd45 JO |
772 | int record_callchain_opt(const struct option *opt, |
773 | const char *arg __maybe_unused, | |
774 | int unset __maybe_unused) | |
775 | { | |
b4006796 | 776 | struct record_opts *opts = opt->value; |
09b0fd45 JO |
777 | |
778 | if (opts->call_graph == CALLCHAIN_NONE) | |
779 | opts->call_graph = CALLCHAIN_FP; | |
780 | ||
781 | callchain_debug(opts); | |
782 | return 0; | |
783 | } | |
784 | ||
0e9b20b8 | 785 | static const char * const record_usage[] = { |
9e096753 MG |
786 | "perf record [<options>] [<command>]", |
787 | "perf record [<options>] -- <command> [<options>]", | |
0e9b20b8 IM |
788 | NULL |
789 | }; | |
790 | ||
d20deb64 | 791 | /* |
8c6f45a7 ACM |
792 | * XXX Ideally would be local to cmd_record() and passed to a record__new |
793 | * because we need to have access to it in record__exit, that is called | |
d20deb64 ACM |
794 | * after cmd_record() exits, but since record_options need to be accessible to |
795 | * builtin-script, leave it here. | |
796 | * | |
797 | * At least we don't ouch it in all the other functions here directly. | |
798 | * | |
799 | * Just say no to tons of global variables, sigh. | |
800 | */ | |
8c6f45a7 | 801 | static struct record record = { |
d20deb64 | 802 | .opts = { |
d20deb64 ACM |
803 | .mmap_pages = UINT_MAX, |
804 | .user_freq = UINT_MAX, | |
805 | .user_interval = ULLONG_MAX, | |
447a6013 | 806 | .freq = 4000, |
d1cb9fce NK |
807 | .target = { |
808 | .uses_mmap = true, | |
3aa5939d | 809 | .default_per_cpu = true, |
d1cb9fce | 810 | }, |
d20deb64 | 811 | }, |
d20deb64 | 812 | }; |
7865e817 | 813 | |
09b0fd45 | 814 | #define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: " |
61eaa3be | 815 | |
89fe808a | 816 | #ifdef HAVE_LIBUNWIND_SUPPORT |
09b0fd45 | 817 | const char record_callchain_help[] = CALLCHAIN_HELP "fp dwarf"; |
61eaa3be | 818 | #else |
09b0fd45 | 819 | const char record_callchain_help[] = CALLCHAIN_HELP "fp"; |
61eaa3be ACM |
820 | #endif |
821 | ||
d20deb64 ACM |
822 | /* |
823 | * XXX Will stay a global variable till we fix builtin-script.c to stop messing | |
824 | * with it and switch to use the library functions in perf_evlist that came | |
b4006796 | 825 | * from builtin-record.c, i.e. use record_opts, |
d20deb64 ACM |
826 | * perf_evlist__prepare_workload, etc instead of fork+exec'in 'perf record', |
827 | * using pipes, etc. | |
828 | */ | |
bca647aa | 829 | const struct option record_options[] = { |
d20deb64 | 830 | OPT_CALLBACK('e', "event", &record.evlist, "event", |
86847b62 | 831 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 832 | parse_events_option), |
d20deb64 | 833 | OPT_CALLBACK(0, "filter", &record.evlist, "filter", |
c171b552 | 834 | "event filter", parse_filter), |
bea03405 | 835 | OPT_STRING('p', "pid", &record.opts.target.pid, "pid", |
d6d901c2 | 836 | "record events on existing process id"), |
bea03405 | 837 | OPT_STRING('t', "tid", &record.opts.target.tid, "tid", |
d6d901c2 | 838 | "record events on existing thread id"), |
d20deb64 | 839 | OPT_INTEGER('r', "realtime", &record.realtime_prio, |
0e9b20b8 | 840 | "collect data with this RT SCHED_FIFO priority"), |
509051ea | 841 | OPT_BOOLEAN(0, "no-buffering", &record.opts.no_buffering, |
acac03fa | 842 | "collect data without buffering"), |
d20deb64 | 843 | OPT_BOOLEAN('R', "raw-samples", &record.opts.raw_samples, |
daac07b2 | 844 | "collect raw sample records from all opened counters"), |
bea03405 | 845 | OPT_BOOLEAN('a', "all-cpus", &record.opts.target.system_wide, |
0e9b20b8 | 846 | "system-wide collection from all CPUs"), |
bea03405 | 847 | OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu", |
c45c6ea2 | 848 | "list of cpus to monitor"), |
d20deb64 | 849 | OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"), |
f5fc1412 | 850 | OPT_STRING('o', "output", &record.file.path, "file", |
abaff32a | 851 | "output file name"), |
69e7e5b0 AH |
852 | OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit, |
853 | &record.opts.no_inherit_set, | |
854 | "child tasks do not inherit counters"), | |
d20deb64 | 855 | OPT_UINTEGER('F', "freq", &record.opts.user_freq, "profile at this frequency"), |
994a1f78 JO |
856 | OPT_CALLBACK('m', "mmap-pages", &record.opts.mmap_pages, "pages", |
857 | "number of mmap data pages", | |
858 | perf_evlist__parse_mmap_pages), | |
d20deb64 | 859 | OPT_BOOLEAN(0, "group", &record.opts.group, |
43bece79 | 860 | "put the counters into a counter group"), |
09b0fd45 JO |
861 | OPT_CALLBACK_NOOPT('g', NULL, &record.opts, |
862 | NULL, "enables call-graph recording" , | |
863 | &record_callchain_opt), | |
864 | OPT_CALLBACK(0, "call-graph", &record.opts, | |
865 | "mode[,dump_size]", record_callchain_help, | |
866 | &record_parse_callchain_opt), | |
c0555642 | 867 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 868 | "be more verbose (show counter open errors, etc)"), |
b44308f5 | 869 | OPT_BOOLEAN('q', "quiet", &quiet, "don't print any message"), |
d20deb64 | 870 | OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat, |
649c48a9 | 871 | "per thread counts"), |
d20deb64 | 872 | OPT_BOOLEAN('d', "data", &record.opts.sample_address, |
4bba828d | 873 | "Sample addresses"), |
d20deb64 | 874 | OPT_BOOLEAN('T', "timestamp", &record.opts.sample_time, "Sample timestamps"), |
3e76ac78 | 875 | OPT_BOOLEAN('P', "period", &record.opts.period, "Sample period"), |
d20deb64 | 876 | OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples, |
649c48a9 | 877 | "don't sample"), |
d20deb64 | 878 | OPT_BOOLEAN('N', "no-buildid-cache", &record.no_buildid_cache, |
a1ac1d3c | 879 | "do not update the buildid cache"), |
d20deb64 | 880 | OPT_BOOLEAN('B', "no-buildid", &record.no_buildid, |
baa2f6ce | 881 | "do not collect buildids in perf.data"), |
d20deb64 | 882 | OPT_CALLBACK('G', "cgroup", &record.evlist, "name", |
023695d9 SE |
883 | "monitor event in cgroup name only", |
884 | parse_cgroups), | |
6619a53e AK |
885 | OPT_UINTEGER(0, "initial-delay", &record.opts.initial_delay, |
886 | "ms to wait before starting measurement after program start"), | |
bea03405 NK |
887 | OPT_STRING('u', "uid", &record.opts.target.uid_str, "user", |
888 | "user to profile"), | |
a5aabdac SE |
889 | |
890 | OPT_CALLBACK_NOOPT('b', "branch-any", &record.opts.branch_stack, | |
891 | "branch any", "sample any taken branches", | |
892 | parse_branch_stack), | |
893 | ||
894 | OPT_CALLBACK('j', "branch-filter", &record.opts.branch_stack, | |
895 | "branch filter mask", "branch stack filter modes", | |
bdfebd84 | 896 | parse_branch_stack), |
05484298 AK |
897 | OPT_BOOLEAN('W', "weight", &record.opts.sample_weight, |
898 | "sample by weight (on special events only)"), | |
475eeab9 AK |
899 | OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction, |
900 | "sample transaction flags (special events only)"), | |
3aa5939d AH |
901 | OPT_BOOLEAN(0, "per-thread", &record.opts.target.per_thread, |
902 | "use per-thread mmaps"), | |
0e9b20b8 IM |
903 | OPT_END() |
904 | }; | |
905 | ||
1d037ca1 | 906 | int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) |
0e9b20b8 | 907 | { |
69aad6f1 | 908 | int err = -ENOMEM; |
8c6f45a7 | 909 | struct record *rec = &record; |
16ad2ffb | 910 | char errbuf[BUFSIZ]; |
0e9b20b8 | 911 | |
3e2be2da ACM |
912 | rec->evlist = perf_evlist__new(); |
913 | if (rec->evlist == NULL) | |
361c99a6 ACM |
914 | return -ENOMEM; |
915 | ||
bca647aa | 916 | argc = parse_options(argc, argv, record_options, record_usage, |
655000e7 | 917 | PARSE_OPT_STOP_AT_NON_OPTION); |
602ad878 | 918 | if (!argc && target__none(&rec->opts.target)) |
bca647aa | 919 | usage_with_options(record_usage, record_options); |
0e9b20b8 | 920 | |
bea03405 | 921 | if (nr_cgroups && !rec->opts.target.system_wide) { |
3780f488 NK |
922 | ui__error("cgroup monitoring only available in" |
923 | " system-wide mode\n"); | |
023695d9 SE |
924 | usage_with_options(record_usage, record_options); |
925 | } | |
926 | ||
655000e7 | 927 | symbol__init(); |
baa2f6ce | 928 | |
ec80fde7 | 929 | if (symbol_conf.kptr_restrict) |
646aaea6 ACM |
930 | pr_warning( |
931 | "WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted,\n" | |
932 | "check /proc/sys/kernel/kptr_restrict.\n\n" | |
933 | "Samples in kernel functions may not be resolved if a suitable vmlinux\n" | |
934 | "file is not found in the buildid cache or in the vmlinux path.\n\n" | |
935 | "Samples in kernel modules won't be resolved at all.\n\n" | |
936 | "If some relocation was applied (e.g. kexec) symbols may be misresolved\n" | |
937 | "even with a suitable vmlinux or kallsyms file.\n\n"); | |
ec80fde7 | 938 | |
d20deb64 | 939 | if (rec->no_buildid_cache || rec->no_buildid) |
a1ac1d3c | 940 | disable_buildid_cache(); |
655000e7 | 941 | |
3e2be2da ACM |
942 | if (rec->evlist->nr_entries == 0 && |
943 | perf_evlist__add_default(rec->evlist) < 0) { | |
69aad6f1 ACM |
944 | pr_err("Not enough memory for event selector list\n"); |
945 | goto out_symbol_exit; | |
bbd36e5e | 946 | } |
0e9b20b8 | 947 | |
69e7e5b0 AH |
948 | if (rec->opts.target.tid && !rec->opts.no_inherit_set) |
949 | rec->opts.no_inherit = true; | |
950 | ||
602ad878 | 951 | err = target__validate(&rec->opts.target); |
16ad2ffb | 952 | if (err) { |
602ad878 | 953 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
16ad2ffb NK |
954 | ui__warning("%s", errbuf); |
955 | } | |
956 | ||
602ad878 | 957 | err = target__parse_uid(&rec->opts.target); |
16ad2ffb NK |
958 | if (err) { |
959 | int saved_errno = errno; | |
4bd0f2d2 | 960 | |
602ad878 | 961 | target__strerror(&rec->opts.target, err, errbuf, BUFSIZ); |
3780f488 | 962 | ui__error("%s", errbuf); |
16ad2ffb NK |
963 | |
964 | err = -saved_errno; | |
8fa60e1f | 965 | goto out_symbol_exit; |
16ad2ffb | 966 | } |
0d37aa34 | 967 | |
16ad2ffb | 968 | err = -ENOMEM; |
3e2be2da | 969 | if (perf_evlist__create_maps(rec->evlist, &rec->opts.target) < 0) |
dd7927f4 | 970 | usage_with_options(record_usage, record_options); |
69aad6f1 | 971 | |
b4006796 | 972 | if (record_opts__config(&rec->opts)) { |
39d17dac | 973 | err = -EINVAL; |
03ad9747 | 974 | goto out_symbol_exit; |
7e4ff9e3 MG |
975 | } |
976 | ||
d20deb64 | 977 | err = __cmd_record(&record, argc, argv); |
d65a458b ACM |
978 | out_symbol_exit: |
979 | symbol__exit(); | |
39d17dac | 980 | return err; |
0e9b20b8 | 981 | } |