?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel
[linux/fpc-iii.git] / tools / perf / builtin-inject.c
blob372ecb3e2c06fb93b551c1e158ba598759c34309
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 };
49
50 struct event_entry {
51 struct list_head node;
52 u32 tid;
53 union perf_event event[0];
54 };
55
56 static int output_bytes(struct perf_inject *inject, void *buf, size_t sz)
57 {
58 ssize_t size;
59
60 size = perf_data__write(&inject->output, buf, sz);
61 if (size < 0)
62 return -errno;
63
64 inject->bytes_written += size;
65 return 0;
66 }
67
68 static int perf_event__repipe_synth(struct perf_tool *tool,
69 union perf_event *event)
70 {
71 struct perf_inject *inject = container_of(tool, struct perf_inject,
72 tool);
73
74 return output_bytes(inject, event, event->header.size);
75 }
76
77 static int perf_event__repipe_oe_synth(struct perf_tool *tool,
78 union perf_event *event,
79 struct ordered_events *oe __maybe_unused)
80 {
81 return perf_event__repipe_synth(tool, event);
82 }
83
84 #ifdef HAVE_JITDUMP
85 static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused,
86 union perf_event *event __maybe_unused,
87 struct ordered_events *oe __maybe_unused)
88 {
89 return 0;
90 }
91 #endif
92
93 static int perf_event__repipe_op2_synth(struct perf_session *session,
94 union perf_event *event)
95 {
96 return perf_event__repipe_synth(session->tool, event);
97 }
98
99 static int perf_event__repipe_attr(struct perf_tool *tool,
100 union perf_event *event,
101 struct evlist **pevlist)
102 {
103 struct perf_inject *inject = container_of(tool, struct perf_inject,
104 tool);
105 int ret;
106
107 ret = perf_event__process_attr(tool, event, pevlist);
108 if (ret)
109 return ret;
110
111 if (!inject->output.is_pipe)
112 return 0;
113
114 return perf_event__repipe_synth(tool, event);
115 }
116
117 #ifdef HAVE_AUXTRACE_SUPPORT
118
119 static int copy_bytes(struct perf_inject *inject, int fd, off_t size)
120 {
121 char buf[4096];
122 ssize_t ssz;
123 int ret;
124
125 while (size > 0) {
126 ssz = read(fd, buf, min(size, (off_t)sizeof(buf)));
127 if (ssz < 0)
128 return -errno;
129 ret = output_bytes(inject, buf, ssz);
130 if (ret)
131 return ret;
132 size -= ssz;
133 }
134
135 return 0;
136 }
137
138 static s64 perf_event__repipe_auxtrace(struct perf_session *session,
139 union perf_event *event)
140 {
141 struct perf_tool *tool = session->tool;
142 struct perf_inject *inject = container_of(tool, struct perf_inject,
143 tool);
144 int ret;
145
146 inject->have_auxtrace = true;
147
148 if (!inject->output.is_pipe) {
149 off_t offset;
150
151 offset = lseek(inject->output.file.fd, 0, SEEK_CUR);
152 if (offset == -1)
153 return -errno;
154 ret = auxtrace_index__auxtrace_event(&session->auxtrace_index,
155 event, offset);
156 if (ret < 0)
157 return ret;
158 }
159
160 if (perf_data__is_pipe(session->data) || !session->one_mmap) {
161 ret = output_bytes(inject, event, event->header.size);
162 if (ret < 0)
163 return ret;
164 ret = copy_bytes(inject, perf_data__fd(session->data),
165 event->auxtrace.size);
166 } else {
167 ret = output_bytes(inject, event,
168 event->header.size + event->auxtrace.size);
169 }
170 if (ret < 0)
171 return ret;
172
173 return event->auxtrace.size;
174 }
175
176 #else
177
178 static s64
179 perf_event__repipe_auxtrace(struct perf_session *session __maybe_unused,
180 union perf_event *event __maybe_unused)
181 {
182 pr_err("AUX area tracing not supported\n");
183 return -EINVAL;
184 }
185
186 #endif
187
188 static int perf_event__repipe(struct perf_tool *tool,
189 union perf_event *event,
190 struct perf_sample *sample __maybe_unused,
191 struct machine *machine __maybe_unused)
192 {
193 return perf_event__repipe_synth(tool, event);
194 }
195
196 static int perf_event__drop(struct perf_tool *tool __maybe_unused,
197 union perf_event *event __maybe_unused,
198 struct perf_sample *sample __maybe_unused,
199 struct machine *machine __maybe_unused)
200 {
201 return 0;
202 }
203
204 static int perf_event__drop_aux(struct perf_tool *tool,
205 union perf_event *event __maybe_unused,
206 struct perf_sample *sample,
207 struct machine *machine __maybe_unused)
208 {
209 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
210
211 if (!inject->aux_id)
212 inject->aux_id = sample->id;
213
214 return 0;
215 }
216
217 typedef int (*inject_handler)(struct perf_tool *tool,
218 union perf_event *event,
219 struct perf_sample *sample,
220 struct evsel *evsel,
221 struct machine *machine);
222
223 static int perf_event__repipe_sample(struct perf_tool *tool,
224 union perf_event *event,
225 struct perf_sample *sample,
226 struct evsel *evsel,
227 struct machine *machine)
228 {
229 if (evsel && evsel->handler) {
230 inject_handler f = evsel->handler;
231 return f(tool, event, sample, evsel, machine);
232 }
233
234 build_id__mark_dso_hit(tool, event, sample, evsel, machine);
235
236 return perf_event__repipe_synth(tool, event);
237 }
238
239 static int perf_event__repipe_mmap(struct perf_tool *tool,
240 union perf_event *event,
241 struct perf_sample *sample,
242 struct machine *machine)
243 {
244 int err;
245
246 err = perf_event__process_mmap(tool, event, sample, machine);
247 perf_event__repipe(tool, event, sample, machine);
248
249 return err;
250 }
251
252 #ifdef HAVE_JITDUMP
253 static int perf_event__jit_repipe_mmap(struct perf_tool *tool,
254 union perf_event *event,
255 struct perf_sample *sample,
256 struct machine *machine)
257 {
258 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
259 u64 n = 0;
260 int ret;
261
262 /*
263 * if jit marker, then inject jit mmaps and generate ELF images
264 */
265 ret = jit_process(inject->session, &inject->output, machine,
266 event->mmap.filename, sample->pid, &n);
267 if (ret < 0)
268 return ret;
269 if (ret) {
270 inject->bytes_written += n;
271 return 0;
272 }
273 return perf_event__repipe_mmap(tool, event, sample, machine);
274 }
275 #endif
276
277 static int perf_event__repipe_mmap2(struct perf_tool *tool,
278 union perf_event *event,
279 struct perf_sample *sample,
280 struct machine *machine)
281 {
282 int err;
283
284 err = perf_event__process_mmap2(tool, event, sample, machine);
285 perf_event__repipe(tool, event, sample, machine);
286
287 return err;
288 }
289
290 #ifdef HAVE_JITDUMP
291 static int perf_event__jit_repipe_mmap2(struct perf_tool *tool,
292 union perf_event *event,
293 struct perf_sample *sample,
294 struct machine *machine)
295 {
296 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
297 u64 n = 0;
298 int ret;
299
300 /*
301 * if jit marker, then inject jit mmaps and generate ELF images
302 */
303 ret = jit_process(inject->session, &inject->output, machine,
304 event->mmap2.filename, sample->pid, &n);
305 if (ret < 0)
306 return ret;
307 if (ret) {
308 inject->bytes_written += n;
309 return 0;
310 }
311 return perf_event__repipe_mmap2(tool, event, sample, machine);
312 }
313 #endif
314
315 static int perf_event__repipe_fork(struct perf_tool *tool,
316 union perf_event *event,
317 struct perf_sample *sample,
318 struct machine *machine)
319 {
320 int err;
321
322 err = perf_event__process_fork(tool, event, sample, machine);
323 perf_event__repipe(tool, event, sample, machine);
324
325 return err;
326 }
327
328 static int perf_event__repipe_comm(struct perf_tool *tool,
329 union perf_event *event,
330 struct perf_sample *sample,
331 struct machine *machine)
332 {
333 int err;
334
335 err = perf_event__process_comm(tool, event, sample, machine);
336 perf_event__repipe(tool, event, sample, machine);
337
338 return err;
339 }
340
341 static int perf_event__repipe_namespaces(struct perf_tool *tool,
342 union perf_event *event,
343 struct perf_sample *sample,
344 struct machine *machine)
345 {
346 int err = perf_event__process_namespaces(tool, event, sample, machine);
347
348 perf_event__repipe(tool, event, sample, machine);
349
350 return err;
351 }
352
353 static int perf_event__repipe_exit(struct perf_tool *tool,
354 union perf_event *event,
355 struct perf_sample *sample,
356 struct machine *machine)
357 {
358 int err;
359
360 err = perf_event__process_exit(tool, event, sample, machine);
361 perf_event__repipe(tool, event, sample, machine);
362
363 return err;
364 }
365
366 static int perf_event__repipe_tracing_data(struct perf_session *session,
367 union perf_event *event)
368 {
369 int err;
370
371 perf_event__repipe_synth(session->tool, event);
372 err = perf_event__process_tracing_data(session, event);
373
374 return err;
375 }
376
377 static int perf_event__repipe_id_index(struct perf_session *session,
378 union perf_event *event)
379 {
380 int err;
381
382 perf_event__repipe_synth(session->tool, event);
383 err = perf_event__process_id_index(session, event);
384
385 return err;
386 }
387
388 static int dso__read_build_id(struct dso *dso)
389 {
390 if (dso->has_build_id)
391 return 0;
392
393 if (filename__read_build_id(dso->long_name, dso->build_id,
394 sizeof(dso->build_id)) > 0) {
395 dso->has_build_id = true;
396 return 0;
397 }
398
399 return -1;
400 }
401
402 static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool,
403 struct machine *machine)
404 {
405 u16 misc = PERF_RECORD_MISC_USER;
406 int err;
407
408 if (dso__read_build_id(dso) < 0) {
409 pr_debug("no build_id found for %s\n", dso->long_name);
410 return -1;
411 }
412
413 if (dso->kernel)
414 misc = PERF_RECORD_MISC_KERNEL;
415
416 err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe,
417 machine);
418 if (err) {
419 pr_err("Can't synthesize build_id event for %s\n", dso->long_name);
420 return -1;
421 }
422
423 return 0;
424 }
425
426 static int perf_event__inject_buildid(struct perf_tool *tool,
427 union perf_event *event,
428 struct perf_sample *sample,
429 struct evsel *evsel __maybe_unused,
430 struct machine *machine)
431 {
432 struct addr_location al;
433 struct thread *thread;
434
435 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
436 if (thread == NULL) {
437 pr_err("problem processing %d event, skipping it.\n",
438 event->header.type);
439 goto repipe;
440 }
441
442 if (thread__find_map(thread, sample->cpumode, sample->ip, &al)) {
443 if (!al.map->dso->hit) {
444 al.map->dso->hit = 1;
445 if (map__load(al.map) >= 0) {
446 dso__inject_build_id(al.map->dso, tool, machine);
447 /*
448 * If this fails, too bad, let the other side
449 * account this as unresolved.
450 */
451 } else {
452 #ifdef HAVE_LIBELF_SUPPORT
453 pr_warning("no symbols found in %s, maybe "
454 "install a debug package?\n",
455 al.map->dso->long_name);
456 #endif
457 }
458 }
459 }
460
461 thread__put(thread);
462 repipe:
463 perf_event__repipe(tool, event, sample, machine);
464 return 0;
465 }
466
467 static int perf_inject__sched_process_exit(struct perf_tool *tool,
468 union perf_event *event __maybe_unused,
469 struct perf_sample *sample,
470 struct evsel *evsel __maybe_unused,
471 struct machine *machine __maybe_unused)
472 {
473 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
474 struct event_entry *ent;
475
476 list_for_each_entry(ent, &inject->samples, node) {
477 if (sample->tid == ent->tid) {
478 list_del_init(&ent->node);
479 free(ent);
480 break;
481 }
482 }
483
484 return 0;
485 }
486
487 static int perf_inject__sched_switch(struct perf_tool *tool,
488 union perf_event *event,
489 struct perf_sample *sample,
490 struct evsel *evsel,
491 struct machine *machine)
492 {
493 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
494 struct event_entry *ent;
495
496 perf_inject__sched_process_exit(tool, event, sample, evsel, machine);
497
498 ent = malloc(event->header.size + sizeof(struct event_entry));
499 if (ent == NULL) {
500 color_fprintf(stderr, PERF_COLOR_RED,
501 "Not enough memory to process sched switch event!");
502 return -1;
503 }
504
505 ent->tid = sample->tid;
506 memcpy(&ent->event, event, event->header.size);
507 list_add(&ent->node, &inject->samples);
508 return 0;
509 }
510
511 static int perf_inject__sched_stat(struct perf_tool *tool,
512 union perf_event *event __maybe_unused,
513 struct perf_sample *sample,
514 struct evsel *evsel,
515 struct machine *machine)
516 {
517 struct event_entry *ent;
518 union perf_event *event_sw;
519 struct perf_sample sample_sw;
520 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
521 u32 pid = perf_evsel__intval(evsel, sample, "pid");
522
523 list_for_each_entry(ent, &inject->samples, node) {
524 if (pid == ent->tid)
525 goto found;
526 }
527
528 return 0;
529 found:
530 event_sw = &ent->event[0];
531 perf_evsel__parse_sample(evsel, event_sw, &sample_sw);
532
533 sample_sw.period = sample->period;
534 sample_sw.time = sample->time;
535 perf_event__synthesize_sample(event_sw, evsel->core.attr.sample_type,
536 evsel->core.attr.read_format, &sample_sw);
537 build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine);
538 return perf_event__repipe(tool, event_sw, &sample_sw, machine);
539 }
540
541 static void sig_handler(int sig __maybe_unused)
542 {
543 session_done = 1;
544 }
545
546 static int perf_evsel__check_stype(struct evsel *evsel,
547 u64 sample_type, const char *sample_msg)
548 {
549 struct perf_event_attr *attr = &evsel->core.attr;
550 const char *name = perf_evsel__name(evsel);
551
552 if (!(attr->sample_type & sample_type)) {
553 pr_err("Samples for %s event do not have %s attribute set.",
554 name, sample_msg);
555 return -EINVAL;
556 }
557
558 return 0;
559 }
560
561 static int drop_sample(struct perf_tool *tool __maybe_unused,
562 union perf_event *event __maybe_unused,
563 struct perf_sample *sample __maybe_unused,
564 struct evsel *evsel __maybe_unused,
565 struct machine *machine __maybe_unused)
566 {
567 return 0;
568 }
569
570 static void strip_init(struct perf_inject *inject)
571 {
572 struct evlist *evlist = inject->session->evlist;
573 struct evsel *evsel;
574
575 inject->tool.context_switch = perf_event__drop;
576
577 evlist__for_each_entry(evlist, evsel)
578 evsel->handler = drop_sample;
579 }
580
581 static bool has_tracking(struct evsel *evsel)
582 {
583 return evsel->core.attr.mmap || evsel->core.attr.mmap2 || evsel->core.attr.comm ||
584 evsel->core.attr.task;
585 }
586
587 #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \
588 PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER)
589
590 /*
591 * In order that the perf.data file is parsable, tracking events like MMAP need
592 * their selected event to exist, except if there is only 1 selected event left
593 * and it has a compatible sample type.
594 */
595 static bool ok_to_remove(struct evlist *evlist,
596 struct evsel *evsel_to_remove)
597 {
598 struct evsel *evsel;
599 int cnt = 0;
600 bool ok = false;
601
602 if (!has_tracking(evsel_to_remove))
603 return true;
604
605 evlist__for_each_entry(evlist, evsel) {
606 if (evsel->handler != drop_sample) {
607 cnt += 1;
608 if ((evsel->core.attr.sample_type & COMPAT_MASK) ==
609 (evsel_to_remove->core.attr.sample_type & COMPAT_MASK))
610 ok = true;
611 }
612 }
613
614 return ok && cnt == 1;
615 }
616
617 static void strip_fini(struct perf_inject *inject)
618 {
619 struct evlist *evlist = inject->session->evlist;
620 struct evsel *evsel, *tmp;
621
622 /* Remove non-synthesized evsels if possible */
623 evlist__for_each_entry_safe(evlist, tmp, evsel) {
624 if (evsel->handler == drop_sample &&
625 ok_to_remove(evlist, evsel)) {
626 pr_debug("Deleting %s\n", perf_evsel__name(evsel));
627 evlist__remove(evlist, evsel);
628 evsel__delete(evsel);
629 }
630 }
631 }
632
633 static int __cmd_inject(struct perf_inject *inject)
634 {
635 int ret = -EINVAL;
636 struct perf_session *session = inject->session;
637 struct perf_data *data_out = &inject->output;
638 int fd = perf_data__fd(data_out);
639 u64 output_data_offset;
640
641 signal(SIGINT, sig_handler);
642
643 if (inject->build_ids || inject->sched_stat ||
644 inject->itrace_synth_opts.set) {
645 inject->tool.mmap = perf_event__repipe_mmap;
646 inject->tool.mmap2 = perf_event__repipe_mmap2;
647 inject->tool.fork = perf_event__repipe_fork;
648 inject->tool.tracing_data = perf_event__repipe_tracing_data;
649 }
650
651 output_data_offset = session->header.data_offset;
652
653 if (inject->build_ids) {
654 inject->tool.sample = perf_event__inject_buildid;
655 } else if (inject->sched_stat) {
656 struct evsel *evsel;
657
658 evlist__for_each_entry(session->evlist, evsel) {
659 const char *name = perf_evsel__name(evsel);
660
661 if (!strcmp(name, "sched:sched_switch")) {
662 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID"))
663 return -EINVAL;
664
665 evsel->handler = perf_inject__sched_switch;
666 } else if (!strcmp(name, "sched:sched_process_exit"))
667 evsel->handler = perf_inject__sched_process_exit;
668 else if (!strncmp(name, "sched:sched_stat_", 17))
669 evsel->handler = perf_inject__sched_stat;
670 }
671 } else if (inject->itrace_synth_opts.set) {
672 session->itrace_synth_opts = &inject->itrace_synth_opts;
673 inject->itrace_synth_opts.inject = true;
674 inject->tool.comm = perf_event__repipe_comm;
675 inject->tool.namespaces = perf_event__repipe_namespaces;
676 inject->tool.exit = perf_event__repipe_exit;
677 inject->tool.id_index = perf_event__repipe_id_index;
678 inject->tool.auxtrace_info = perf_event__process_auxtrace_info;
679 inject->tool.auxtrace = perf_event__process_auxtrace;
680 inject->tool.aux = perf_event__drop_aux;
681 inject->tool.itrace_start = perf_event__drop_aux,
682 inject->tool.ordered_events = true;
683 inject->tool.ordering_requires_timestamps = true;
684 /* Allow space in the header for new attributes */
685 output_data_offset = 4096;
686 if (inject->strip)
687 strip_init(inject);
688 }
689
690 if (!inject->itrace_synth_opts.set)
691 auxtrace_index__free(&session->auxtrace_index);
692
693 if (!data_out->is_pipe)
694 lseek(fd, output_data_offset, SEEK_SET);
695
696 ret = perf_session__process_events(session);
697 if (ret)
698 return ret;
699
700 if (!data_out->is_pipe) {
701 if (inject->build_ids)
702 perf_header__set_feat(&session->header,
703 HEADER_BUILD_ID);
704 /*
705 * Keep all buildids when there is unprocessed AUX data because
706 * it is not known which ones the AUX trace hits.
707 */
708 if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) &&
709 inject->have_auxtrace && !inject->itrace_synth_opts.set)
710 dsos__hit_all(session);
711 /*
712 * The AUX areas have been removed and replaced with
713 * synthesized hardware events, so clear the feature flag and
714 * remove the evsel.
715 */
716 if (inject->itrace_synth_opts.set) {
717 struct evsel *evsel;
718
719 perf_header__clear_feat(&session->header,
720 HEADER_AUXTRACE);
721 if (inject->itrace_synth_opts.last_branch)
722 perf_header__set_feat(&session->header,
723 HEADER_BRANCH_STACK);
724 evsel = perf_evlist__id2evsel_strict(session->evlist,
725 inject->aux_id);
726 if (evsel) {
727 pr_debug("Deleting %s\n",
728 perf_evsel__name(evsel));
729 evlist__remove(session->evlist, evsel);
730 evsel__delete(evsel);
731 }
732 if (inject->strip)
733 strip_fini(inject);
734 }
735 session->header.data_offset = output_data_offset;
736 session->header.data_size = inject->bytes_written;
737 perf_session__write_header(session, session->evlist, fd, true);
738 }
739
740 return ret;
741 }
742
743 int cmd_inject(int argc, const char **argv)
744 {
745 struct perf_inject inject = {
746 .tool = {
747 .sample = perf_event__repipe_sample,
748 .mmap = perf_event__repipe,
749 .mmap2 = perf_event__repipe,
750 .comm = perf_event__repipe,
751 .fork = perf_event__repipe,
752 .exit = perf_event__repipe,
753 .lost = perf_event__repipe,
754 .lost_samples = perf_event__repipe,
755 .aux = perf_event__repipe,
756 .itrace_start = perf_event__repipe,
757 .context_switch = perf_event__repipe,
758 .read = perf_event__repipe_sample,
759 .throttle = perf_event__repipe,
760 .unthrottle = perf_event__repipe,
761 .attr = perf_event__repipe_attr,
762 .tracing_data = perf_event__repipe_op2_synth,
763 .auxtrace_info = perf_event__repipe_op2_synth,
764 .auxtrace = perf_event__repipe_auxtrace,
765 .auxtrace_error = perf_event__repipe_op2_synth,
766 .time_conv = perf_event__repipe_op2_synth,
767 .finished_round = perf_event__repipe_oe_synth,
768 .build_id = perf_event__repipe_op2_synth,
769 .id_index = perf_event__repipe_op2_synth,
770 .feature = perf_event__repipe_op2_synth,
771 },
772 .input_name = "-",
773 .samples = LIST_HEAD_INIT(inject.samples),
774 .output = {
775 .path = "-",
776 .mode = PERF_DATA_MODE_WRITE,
777 },
778 };
779 struct perf_data data = {
780 .mode = PERF_DATA_MODE_READ,
781 };
782 int ret;
783
784 struct option options[] = {
785 OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
786 "Inject build-ids into the output stream"),
787 OPT_STRING('i', "input", &inject.input_name, "file",
788 "input file name"),
789 OPT_STRING('o', "output", &inject.output.path, "file",
790 "output file name"),
791 OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
792 "Merge sched-stat and sched-switch for getting events "
793 "where and how long tasks slept"),
794 #ifdef HAVE_JITDUMP
795 OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"),
796 #endif
797 OPT_INCR('v', "verbose", &verbose,
798 "be more verbose (show build ids, etc)"),
799 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file",
800 "kallsyms pathname"),
801 OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"),
802 OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts,
803 NULL, "opts", "Instruction Tracing options\n"
804 ITRACE_HELP,
805 itrace_parse_synth_opts),
806 OPT_BOOLEAN(0, "strip", &inject.strip,
807 "strip non-synthesized events (use with --itrace)"),
808 OPT_END()
809 };
810 const char * const inject_usage[] = {
811 "perf inject [<options>]",
812 NULL
813 };
814 #ifndef HAVE_JITDUMP
815 set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true);
816 #endif
817 argc = parse_options(argc, argv, options, inject_usage, 0);
818
819 /*
820 * Any (unrecognized) arguments left?
821 */
822 if (argc)
823 usage_with_options(inject_usage, options);
824
825 if (inject.strip && !inject.itrace_synth_opts.set) {
826 pr_err("--strip option requires --itrace option\n");
827 return -1;
828 }
829
830 if (perf_data__open(&inject.output)) {
831 perror("failed to create output file");
832 return -1;
833 }
834
835 inject.tool.ordered_events = inject.sched_stat;
836
837 data.path = inject.input_name;
838 inject.session = perf_session__new(&data, true, &inject.tool);
839 if (IS_ERR(inject.session))
840 return PTR_ERR(inject.session);
841
842 if (zstd_init(&(inject.session->zstd_data), 0) < 0)
843 pr_warning("Decompression initialization failed.\n");
844
845 if (inject.build_ids) {
846 /*
847 * to make sure the mmap records are ordered correctly
848 * and so that the correct especially due to jitted code
849 * mmaps. We cannot generate the buildid hit list and
850 * inject the jit mmaps at the same time for now.
851 */
852 inject.tool.ordered_events = true;
853 inject.tool.ordering_requires_timestamps = true;
854 }
855 #ifdef HAVE_JITDUMP
856 if (inject.jit_mode) {
857 inject.tool.mmap2 = perf_event__jit_repipe_mmap2;
858 inject.tool.mmap = perf_event__jit_repipe_mmap;
859 inject.tool.ordered_events = true;
860 inject.tool.ordering_requires_timestamps = true;
861 /*
862 * JIT MMAP injection injects all MMAP events in one go, so it
863 * does not obey finished_round semantics.
864 */
865 inject.tool.finished_round = perf_event__drop_oe;
866 }
867 #endif
868 ret = symbol__init(&inject.session->header.env);
869 if (ret < 0)
870 goto out_delete;
871
872 ret = __cmd_inject(&inject);
873
874 out_delete:
875 zstd_fini(&(inject.session->zstd_data));
876 perf_session__delete(inject.session);
877 return ret;
878 }
Linux with added FPC-III support