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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / tools / perf / builtin-inject.c
blob7e124a7b8bfdc4e42ba48846caeab4f66a46c41e
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * builtin-inject.c
4 *
5 * Builtin inject command: Examine the live mode (stdin) event stream
6 * and repipe it to stdout while optionally injecting additional
7 * events into it.
8 */
9 #include "builtin.h"
10
11 #include "util/color.h"
12 #include "util/dso.h"
13 #include "util/evlist.h"
14 #include "util/evsel.h"
15 #include "util/map.h"
16 #include "util/session.h"
17 #include "util/tool.h"
18 #include "util/debug.h"
19 #include "util/build-id.h"
20 #include "util/data.h"
21 #include "util/auxtrace.h"
22 #include "util/jit.h"
23 #include "util/symbol.h"
24 #include "util/synthetic-events.h"
25 #include "util/thread.h"
26 #include <linux/err.h>
27
28 #include <subcmd/parse-options.h>
29
30 #include <linux/list.h>
31 #include <errno.h>
32 #include <signal.h>
33
34 struct perf_inject {
35 struct perf_tool tool;
36 struct perf_session *session;
37 bool build_ids;
38 bool sched_stat;
39 bool have_auxtrace;
40 bool strip;
41 bool jit_mode;
42 const char *input_name;
43 struct perf_data output;
44 u64 bytes_written;
45 u64 aux_id;
46 struct list_head samples;
47 struct itrace_synth_opts itrace_synth_opts;
48 char event_copy[PERF_SAMPLE_MAX_SIZE];
49 };
50
51 struct event_entry {
52 struct list_head node;
53 u32 tid;
54 union perf_event event[0];
55 };
56
57 static int output_bytes(struct perf_inject *inject, void *buf, size_t sz)
58 {
59 ssize_t size;
60
61 size = perf_data__write(&inject->output, buf, sz);
62 if (size < 0)
63 return -errno;
64
65 inject->bytes_written += size;
66 return 0;
67 }
68
69 static int perf_event__repipe_synth(struct perf_tool *tool,
70 union perf_event *event)
71 {
72 struct perf_inject *inject = container_of(tool, struct perf_inject,
73 tool);
74
75 return output_bytes(inject, event, event->header.size);
76 }
77
78 static int perf_event__repipe_oe_synth(struct perf_tool *tool,
79 union perf_event *event,
80 struct ordered_events *oe __maybe_unused)
81 {
82 return perf_event__repipe_synth(tool, event);
83 }
84
85 #ifdef HAVE_JITDUMP
86 static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused,
87 union perf_event *event __maybe_unused,
88 struct ordered_events *oe __maybe_unused)
89 {
90 return 0;
91 }
92 #endif
93
94 static int perf_event__repipe_op2_synth(struct perf_session *session,
95 union perf_event *event)
96 {
97 return perf_event__repipe_synth(session->tool, event);
98 }
99
100 static int perf_event__repipe_attr(struct perf_tool *tool,
101 union perf_event *event,
102 struct evlist **pevlist)
103 {
104 struct perf_inject *inject = container_of(tool, struct perf_inject,
105 tool);
106 int ret;
107
108 ret = perf_event__process_attr(tool, event, pevlist);
109 if (ret)
110 return ret;
111
112 if (!inject->output.is_pipe)
113 return 0;
114
115 return perf_event__repipe_synth(tool, event);
116 }
117
118 #ifdef HAVE_AUXTRACE_SUPPORT
119
120 static int copy_bytes(struct perf_inject *inject, int fd, off_t size)
121 {
122 char buf[4096];
123 ssize_t ssz;
124 int ret;
125
126 while (size > 0) {
127 ssz = read(fd, buf, min(size, (off_t)sizeof(buf)));
128 if (ssz < 0)
129 return -errno;
130 ret = output_bytes(inject, buf, ssz);
131 if (ret)
132 return ret;
133 size -= ssz;
134 }
135
136 return 0;
137 }
138
139 static s64 perf_event__repipe_auxtrace(struct perf_session *session,
140 union perf_event *event)
141 {
142 struct perf_tool *tool = session->tool;
143 struct perf_inject *inject = container_of(tool, struct perf_inject,
144 tool);
145 int ret;
146
147 inject->have_auxtrace = true;
148
149 if (!inject->output.is_pipe) {
150 off_t offset;
151
152 offset = lseek(inject->output.file.fd, 0, SEEK_CUR);
153 if (offset == -1)
154 return -errno;
155 ret = auxtrace_index__auxtrace_event(&session->auxtrace_index,
156 event, offset);
157 if (ret < 0)
158 return ret;
159 }
160
161 if (perf_data__is_pipe(session->data) || !session->one_mmap) {
162 ret = output_bytes(inject, event, event->header.size);
163 if (ret < 0)
164 return ret;
165 ret = copy_bytes(inject, perf_data__fd(session->data),
166 event->auxtrace.size);
167 } else {
168 ret = output_bytes(inject, event,
169 event->header.size + event->auxtrace.size);
170 }
171 if (ret < 0)
172 return ret;
173
174 return event->auxtrace.size;
175 }
176
177 #else
178
179 static s64
180 perf_event__repipe_auxtrace(struct perf_session *session __maybe_unused,
181 union perf_event *event __maybe_unused)
182 {
183 pr_err("AUX area tracing not supported\n");
184 return -EINVAL;
185 }
186
187 #endif
188
189 static int perf_event__repipe(struct perf_tool *tool,
190 union perf_event *event,
191 struct perf_sample *sample __maybe_unused,
192 struct machine *machine __maybe_unused)
193 {
194 return perf_event__repipe_synth(tool, event);
195 }
196
197 static int perf_event__drop(struct perf_tool *tool __maybe_unused,
198 union perf_event *event __maybe_unused,
199 struct perf_sample *sample __maybe_unused,
200 struct machine *machine __maybe_unused)
201 {
202 return 0;
203 }
204
205 static int perf_event__drop_aux(struct perf_tool *tool,
206 union perf_event *event __maybe_unused,
207 struct perf_sample *sample,
208 struct machine *machine __maybe_unused)
209 {
210 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
211
212 if (!inject->aux_id)
213 inject->aux_id = sample->id;
214
215 return 0;
216 }
217
218 static union perf_event *
219 perf_inject__cut_auxtrace_sample(struct perf_inject *inject,
220 union perf_event *event,
221 struct perf_sample *sample)
222 {
223 size_t sz1 = sample->aux_sample.data - (void *)event;
224 size_t sz2 = event->header.size - sample->aux_sample.size - sz1;
225 union perf_event *ev = (union perf_event *)inject->event_copy;
226
227 if (sz1 > event->header.size || sz2 > event->header.size ||
228 sz1 + sz2 > event->header.size ||
229 sz1 < sizeof(struct perf_event_header) + sizeof(u64))
230 return event;
231
232 memcpy(ev, event, sz1);
233 memcpy((void *)ev + sz1, (void *)event + event->header.size - sz2, sz2);
234 ev->header.size = sz1 + sz2;
235 ((u64 *)((void *)ev + sz1))[-1] = 0;
236
237 return ev;
238 }
239
240 typedef int (*inject_handler)(struct perf_tool *tool,
241 union perf_event *event,
242 struct perf_sample *sample,
243 struct evsel *evsel,
244 struct machine *machine);
245
246 static int perf_event__repipe_sample(struct perf_tool *tool,
247 union perf_event *event,
248 struct perf_sample *sample,
249 struct evsel *evsel,
250 struct machine *machine)
251 {
252 struct perf_inject *inject = container_of(tool, struct perf_inject,
253 tool);
254
255 if (evsel && evsel->handler) {
256 inject_handler f = evsel->handler;
257 return f(tool, event, sample, evsel, machine);
258 }
259
260 build_id__mark_dso_hit(tool, event, sample, evsel, machine);
261
262 if (inject->itrace_synth_opts.set && sample->aux_sample.size)
263 event = perf_inject__cut_auxtrace_sample(inject, event, sample);
264
265 return perf_event__repipe_synth(tool, event);
266 }
267
268 static int perf_event__repipe_mmap(struct perf_tool *tool,
269 union perf_event *event,
270 struct perf_sample *sample,
271 struct machine *machine)
272 {
273 int err;
274
275 err = perf_event__process_mmap(tool, event, sample, machine);
276 perf_event__repipe(tool, event, sample, machine);
277
278 return err;
279 }
280
281 #ifdef HAVE_JITDUMP
282 static int perf_event__jit_repipe_mmap(struct perf_tool *tool,
283 union perf_event *event,
284 struct perf_sample *sample,
285 struct machine *machine)
286 {
287 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
288 u64 n = 0;
289 int ret;
290
291 /*
292 * if jit marker, then inject jit mmaps and generate ELF images
293 */
294 ret = jit_process(inject->session, &inject->output, machine,
295 event->mmap.filename, sample->pid, &n);
296 if (ret < 0)
297 return ret;
298 if (ret) {
299 inject->bytes_written += n;
300 return 0;
301 }
302 return perf_event__repipe_mmap(tool, event, sample, machine);
303 }
304 #endif
305
306 static int perf_event__repipe_mmap2(struct perf_tool *tool,
307 union perf_event *event,
308 struct perf_sample *sample,
309 struct machine *machine)
310 {
311 int err;
312
313 err = perf_event__process_mmap2(tool, event, sample, machine);
314 perf_event__repipe(tool, event, sample, machine);
315
316 return err;
317 }
318
319 #ifdef HAVE_JITDUMP
320 static int perf_event__jit_repipe_mmap2(struct perf_tool *tool,
321 union perf_event *event,
322 struct perf_sample *sample,
323 struct machine *machine)
324 {
325 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
326 u64 n = 0;
327 int ret;
328
329 /*
330 * if jit marker, then inject jit mmaps and generate ELF images
331 */
332 ret = jit_process(inject->session, &inject->output, machine,
333 event->mmap2.filename, sample->pid, &n);
334 if (ret < 0)
335 return ret;
336 if (ret) {
337 inject->bytes_written += n;
338 return 0;
339 }
340 return perf_event__repipe_mmap2(tool, event, sample, machine);
341 }
342 #endif
343
344 static int perf_event__repipe_fork(struct perf_tool *tool,
345 union perf_event *event,
346 struct perf_sample *sample,
347 struct machine *machine)
348 {
349 int err;
350
351 err = perf_event__process_fork(tool, event, sample, machine);
352 perf_event__repipe(tool, event, sample, machine);
353
354 return err;
355 }
356
357 static int perf_event__repipe_comm(struct perf_tool *tool,
358 union perf_event *event,
359 struct perf_sample *sample,
360 struct machine *machine)
361 {
362 int err;
363
364 err = perf_event__process_comm(tool, event, sample, machine);
365 perf_event__repipe(tool, event, sample, machine);
366
367 return err;
368 }
369
370 static int perf_event__repipe_namespaces(struct perf_tool *tool,
371 union perf_event *event,
372 struct perf_sample *sample,
373 struct machine *machine)
374 {
375 int err = perf_event__process_namespaces(tool, event, sample, machine);
376
377 perf_event__repipe(tool, event, sample, machine);
378
379 return err;
380 }
381
382 static int perf_event__repipe_exit(struct perf_tool *tool,
383 union perf_event *event,
384 struct perf_sample *sample,
385 struct machine *machine)
386 {
387 int err;
388
389 err = perf_event__process_exit(tool, event, sample, machine);
390 perf_event__repipe(tool, event, sample, machine);
391
392 return err;
393 }
394
395 static int perf_event__repipe_tracing_data(struct perf_session *session,
396 union perf_event *event)
397 {
398 int err;
399
400 perf_event__repipe_synth(session->tool, event);
401 err = perf_event__process_tracing_data(session, event);
402
403 return err;
404 }
405
406 static int dso__read_build_id(struct dso *dso)
407 {
408 if (dso->has_build_id)
409 return 0;
410
411 if (filename__read_build_id(dso->long_name, dso->build_id,
412 sizeof(dso->build_id)) > 0) {
413 dso->has_build_id = true;
414 return 0;
415 }
416
417 return -1;
418 }
419
420 static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool,
421 struct machine *machine)
422 {
423 u16 misc = PERF_RECORD_MISC_USER;
424 int err;
425
426 if (dso__read_build_id(dso) < 0) {
427 pr_debug("no build_id found for %s\n", dso->long_name);
428 return -1;
429 }
430
431 if (dso->kernel)
432 misc = PERF_RECORD_MISC_KERNEL;
433
434 err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe,
435 machine);
436 if (err) {
437 pr_err("Can't synthesize build_id event for %s\n", dso->long_name);
438 return -1;
439 }
440
441 return 0;
442 }
443
444 static int perf_event__inject_buildid(struct perf_tool *tool,
445 union perf_event *event,
446 struct perf_sample *sample,
447 struct evsel *evsel __maybe_unused,
448 struct machine *machine)
449 {
450 struct addr_location al;
451 struct thread *thread;
452
453 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
454 if (thread == NULL) {
455 pr_err("problem processing %d event, skipping it.\n",
456 event->header.type);
457 goto repipe;
458 }
459
460 if (thread__find_map(thread, sample->cpumode, sample->ip, &al)) {
461 if (!al.map->dso->hit) {
462 al.map->dso->hit = 1;
463 if (map__load(al.map) >= 0) {
464 dso__inject_build_id(al.map->dso, tool, machine);
465 /*
466 * If this fails, too bad, let the other side
467 * account this as unresolved.
468 */
469 } else {
470 #ifdef HAVE_LIBELF_SUPPORT
471 pr_warning("no symbols found in %s, maybe "
472 "install a debug package?\n",
473 al.map->dso->long_name);
474 #endif
475 }
476 }
477 }
478
479 thread__put(thread);
480 repipe:
481 perf_event__repipe(tool, event, sample, machine);
482 return 0;
483 }
484
485 static int perf_inject__sched_process_exit(struct perf_tool *tool,
486 union perf_event *event __maybe_unused,
487 struct perf_sample *sample,
488 struct evsel *evsel __maybe_unused,
489 struct machine *machine __maybe_unused)
490 {
491 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
492 struct event_entry *ent;
493
494 list_for_each_entry(ent, &inject->samples, node) {
495 if (sample->tid == ent->tid) {
496 list_del_init(&ent->node);
497 free(ent);
498 break;
499 }
500 }
501
502 return 0;
503 }
504
505 static int perf_inject__sched_switch(struct perf_tool *tool,
506 union perf_event *event,
507 struct perf_sample *sample,
508 struct evsel *evsel,
509 struct machine *machine)
510 {
511 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
512 struct event_entry *ent;
513
514 perf_inject__sched_process_exit(tool, event, sample, evsel, machine);
515
516 ent = malloc(event->header.size + sizeof(struct event_entry));
517 if (ent == NULL) {
518 color_fprintf(stderr, PERF_COLOR_RED,
519 "Not enough memory to process sched switch event!");
520 return -1;
521 }
522
523 ent->tid = sample->tid;
524 memcpy(&ent->event, event, event->header.size);
525 list_add(&ent->node, &inject->samples);
526 return 0;
527 }
528
529 static int perf_inject__sched_stat(struct perf_tool *tool,
530 union perf_event *event __maybe_unused,
531 struct perf_sample *sample,
532 struct evsel *evsel,
533 struct machine *machine)
534 {
535 struct event_entry *ent;
536 union perf_event *event_sw;
537 struct perf_sample sample_sw;
538 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
539 u32 pid = perf_evsel__intval(evsel, sample, "pid");
540
541 list_for_each_entry(ent, &inject->samples, node) {
542 if (pid == ent->tid)
543 goto found;
544 }
545
546 return 0;
547 found:
548 event_sw = &ent->event[0];
549 perf_evsel__parse_sample(evsel, event_sw, &sample_sw);
550
551 sample_sw.period = sample->period;
552 sample_sw.time = sample->time;
553 perf_event__synthesize_sample(event_sw, evsel->core.attr.sample_type,
554 evsel->core.attr.read_format, &sample_sw);
555 build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine);
556 return perf_event__repipe(tool, event_sw, &sample_sw, machine);
557 }
558
559 static void sig_handler(int sig __maybe_unused)
560 {
561 session_done = 1;
562 }
563
564 static int perf_evsel__check_stype(struct evsel *evsel,
565 u64 sample_type, const char *sample_msg)
566 {
567 struct perf_event_attr *attr = &evsel->core.attr;
568 const char *name = perf_evsel__name(evsel);
569
570 if (!(attr->sample_type & sample_type)) {
571 pr_err("Samples for %s event do not have %s attribute set.",
572 name, sample_msg);
573 return -EINVAL;
574 }
575
576 return 0;
577 }
578
579 static int drop_sample(struct perf_tool *tool __maybe_unused,
580 union perf_event *event __maybe_unused,
581 struct perf_sample *sample __maybe_unused,
582 struct evsel *evsel __maybe_unused,
583 struct machine *machine __maybe_unused)
584 {
585 return 0;
586 }
587
588 static void strip_init(struct perf_inject *inject)
589 {
590 struct evlist *evlist = inject->session->evlist;
591 struct evsel *evsel;
592
593 inject->tool.context_switch = perf_event__drop;
594
595 evlist__for_each_entry(evlist, evsel)
596 evsel->handler = drop_sample;
597 }
598
599 static int __cmd_inject(struct perf_inject *inject)
600 {
601 int ret = -EINVAL;
602 struct perf_session *session = inject->session;
603 struct perf_data *data_out = &inject->output;
604 int fd = perf_data__fd(data_out);
605 u64 output_data_offset;
606
607 signal(SIGINT, sig_handler);
608
609 if (inject->build_ids || inject->sched_stat ||
610 inject->itrace_synth_opts.set) {
611 inject->tool.mmap = perf_event__repipe_mmap;
612 inject->tool.mmap2 = perf_event__repipe_mmap2;
613 inject->tool.fork = perf_event__repipe_fork;
614 inject->tool.tracing_data = perf_event__repipe_tracing_data;
615 }
616
617 output_data_offset = session->header.data_offset;
618
619 if (inject->build_ids) {
620 inject->tool.sample = perf_event__inject_buildid;
621 } else if (inject->sched_stat) {
622 struct evsel *evsel;
623
624 evlist__for_each_entry(session->evlist, evsel) {
625 const char *name = perf_evsel__name(evsel);
626
627 if (!strcmp(name, "sched:sched_switch")) {
628 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID"))
629 return -EINVAL;
630
631 evsel->handler = perf_inject__sched_switch;
632 } else if (!strcmp(name, "sched:sched_process_exit"))
633 evsel->handler = perf_inject__sched_process_exit;
634 else if (!strncmp(name, "sched:sched_stat_", 17))
635 evsel->handler = perf_inject__sched_stat;
636 }
637 } else if (inject->itrace_synth_opts.set) {
638 session->itrace_synth_opts = &inject->itrace_synth_opts;
639 inject->itrace_synth_opts.inject = true;
640 inject->tool.comm = perf_event__repipe_comm;
641 inject->tool.namespaces = perf_event__repipe_namespaces;
642 inject->tool.exit = perf_event__repipe_exit;
643 inject->tool.id_index = perf_event__process_id_index;
644 inject->tool.auxtrace_info = perf_event__process_auxtrace_info;
645 inject->tool.auxtrace = perf_event__process_auxtrace;
646 inject->tool.aux = perf_event__drop_aux;
647 inject->tool.itrace_start = perf_event__drop_aux,
648 inject->tool.ordered_events = true;
649 inject->tool.ordering_requires_timestamps = true;
650 /* Allow space in the header for new attributes */
651 output_data_offset = 4096;
652 if (inject->strip)
653 strip_init(inject);
654 }
655
656 if (!inject->itrace_synth_opts.set)
657 auxtrace_index__free(&session->auxtrace_index);
658
659 if (!data_out->is_pipe)
660 lseek(fd, output_data_offset, SEEK_SET);
661
662 ret = perf_session__process_events(session);
663 if (ret)
664 return ret;
665
666 if (!data_out->is_pipe) {
667 if (inject->build_ids)
668 perf_header__set_feat(&session->header,
669 HEADER_BUILD_ID);
670 /*
671 * Keep all buildids when there is unprocessed AUX data because
672 * it is not known which ones the AUX trace hits.
673 */
674 if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) &&
675 inject->have_auxtrace && !inject->itrace_synth_opts.set)
676 dsos__hit_all(session);
677 /*
678 * The AUX areas have been removed and replaced with
679 * synthesized hardware events, so clear the feature flag and
680 * remove the evsel.
681 */
682 if (inject->itrace_synth_opts.set) {
683 struct evsel *evsel;
684
685 perf_header__clear_feat(&session->header,
686 HEADER_AUXTRACE);
687 if (inject->itrace_synth_opts.last_branch)
688 perf_header__set_feat(&session->header,
689 HEADER_BRANCH_STACK);
690 evsel = perf_evlist__id2evsel_strict(session->evlist,
691 inject->aux_id);
692 if (evsel) {
693 pr_debug("Deleting %s\n",
694 perf_evsel__name(evsel));
695 evlist__remove(session->evlist, evsel);
696 evsel__delete(evsel);
697 }
698 }
699 session->header.data_offset = output_data_offset;
700 session->header.data_size = inject->bytes_written;
701 perf_session__write_header(session, session->evlist, fd, true);
702 }
703
704 return ret;
705 }
706
707 int cmd_inject(int argc, const char **argv)
708 {
709 struct perf_inject inject = {
710 .tool = {
711 .sample = perf_event__repipe_sample,
712 .mmap = perf_event__repipe,
713 .mmap2 = perf_event__repipe,
714 .comm = perf_event__repipe,
715 .fork = perf_event__repipe,
716 .exit = perf_event__repipe,
717 .lost = perf_event__repipe,
718 .lost_samples = perf_event__repipe,
719 .aux = perf_event__repipe,
720 .itrace_start = perf_event__repipe,
721 .context_switch = perf_event__repipe,
722 .read = perf_event__repipe_sample,
723 .throttle = perf_event__repipe,
724 .unthrottle = perf_event__repipe,
725 .attr = perf_event__repipe_attr,
726 .tracing_data = perf_event__repipe_op2_synth,
727 .auxtrace_info = perf_event__repipe_op2_synth,
728 .auxtrace = perf_event__repipe_auxtrace,
729 .auxtrace_error = perf_event__repipe_op2_synth,
730 .time_conv = perf_event__repipe_op2_synth,
731 .finished_round = perf_event__repipe_oe_synth,
732 .build_id = perf_event__repipe_op2_synth,
733 .id_index = perf_event__repipe_op2_synth,
734 .feature = perf_event__repipe_op2_synth,
735 },
736 .input_name = "-",
737 .samples = LIST_HEAD_INIT(inject.samples),
738 .output = {
739 .path = "-",
740 .mode = PERF_DATA_MODE_WRITE,
741 },
742 };
743 struct perf_data data = {
744 .mode = PERF_DATA_MODE_READ,
745 };
746 int ret;
747
748 struct option options[] = {
749 OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
750 "Inject build-ids into the output stream"),
751 OPT_STRING('i', "input", &inject.input_name, "file",
752 "input file name"),
753 OPT_STRING('o', "output", &inject.output.path, "file",
754 "output file name"),
755 OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
756 "Merge sched-stat and sched-switch for getting events "
757 "where and how long tasks slept"),
758 #ifdef HAVE_JITDUMP
759 OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"),
760 #endif
761 OPT_INCR('v', "verbose", &verbose,
762 "be more verbose (show build ids, etc)"),
763 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file",
764 "kallsyms pathname"),
765 OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"),
766 OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts,
767 NULL, "opts", "Instruction Tracing options\n"
768 ITRACE_HELP,
769 itrace_parse_synth_opts),
770 OPT_BOOLEAN(0, "strip", &inject.strip,
771 "strip non-synthesized events (use with --itrace)"),
772 OPT_END()
773 };
774 const char * const inject_usage[] = {
775 "perf inject [<options>]",
776 NULL
777 };
778 #ifndef HAVE_JITDUMP
779 set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true);
780 #endif
781 argc = parse_options(argc, argv, options, inject_usage, 0);
782
783 /*
784 * Any (unrecognized) arguments left?
785 */
786 if (argc)
787 usage_with_options(inject_usage, options);
788
789 if (inject.strip && !inject.itrace_synth_opts.set) {
790 pr_err("--strip option requires --itrace option\n");
791 return -1;
792 }
793
794 if (perf_data__open(&inject.output)) {
795 perror("failed to create output file");
796 return -1;
797 }
798
799 inject.tool.ordered_events = inject.sched_stat;
800
801 data.path = inject.input_name;
802 inject.session = perf_session__new(&data, true, &inject.tool);
803 if (IS_ERR(inject.session))
804 return PTR_ERR(inject.session);
805
806 if (zstd_init(&(inject.session->zstd_data), 0) < 0)
807 pr_warning("Decompression initialization failed.\n");
808
809 if (inject.build_ids) {
810 /*
811 * to make sure the mmap records are ordered correctly
812 * and so that the correct especially due to jitted code
813 * mmaps. We cannot generate the buildid hit list and
814 * inject the jit mmaps at the same time for now.
815 */
816 inject.tool.ordered_events = true;
817 inject.tool.ordering_requires_timestamps = true;
818 }
819 #ifdef HAVE_JITDUMP
820 if (inject.jit_mode) {
821 inject.tool.mmap2 = perf_event__jit_repipe_mmap2;
822 inject.tool.mmap = perf_event__jit_repipe_mmap;
823 inject.tool.ordered_events = true;
824 inject.tool.ordering_requires_timestamps = true;
825 /*
826 * JIT MMAP injection injects all MMAP events in one go, so it
827 * does not obey finished_round semantics.
828 */
829 inject.tool.finished_round = perf_event__drop_oe;
830 }
831 #endif
832 ret = symbol__init(&inject.session->header.env);
833 if (ret < 0)
834 goto out_delete;
835
836 ret = __cmd_inject(&inject);
837
838 out_delete:
839 zstd_fini(&(inject.session->zstd_data));
840 perf_session__delete(inject.session);
841 return ret;
842 }
Linux with added FPC-III support