1 // SPDX-License-Identifier: GPL-2.0
5 * Builtin inject command: Examine the live mode (stdin) event stream
6 * and repipe it to stdout while optionally injecting additional
11 #include "util/color.h"
13 #include "util/vdso.h"
14 #include "util/evlist.h"
15 #include "util/evsel.h"
17 #include "util/session.h"
18 #include "util/tool.h"
19 #include "util/debug.h"
20 #include "util/build-id.h"
21 #include "util/data.h"
22 #include "util/auxtrace.h"
24 #include "util/symbol.h"
25 #include "util/synthetic-events.h"
26 #include "util/thread.h"
27 #include "util/namespaces.h"
29 #include <linux/err.h>
30 #include <subcmd/parse-options.h>
31 #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */
33 #include <linux/list.h>
38 struct perf_tool tool
;
39 struct perf_session
*session
;
46 const char *input_name
;
47 struct perf_data output
;
50 struct list_head samples
;
51 struct itrace_synth_opts itrace_synth_opts
;
52 char event_copy
[PERF_SAMPLE_MAX_SIZE
];
56 struct list_head node
;
58 union perf_event event
[];
61 static int dso__inject_build_id(struct dso
*dso
, struct perf_tool
*tool
,
62 struct machine
*machine
, u8 cpumode
, u32 flags
);
64 static int output_bytes(struct perf_inject
*inject
, void *buf
, size_t sz
)
68 size
= perf_data__write(&inject
->output
, buf
, sz
);
72 inject
->bytes_written
+= size
;
76 static int perf_event__repipe_synth(struct perf_tool
*tool
,
77 union perf_event
*event
)
79 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
,
82 return output_bytes(inject
, event
, event
->header
.size
);
85 static int perf_event__repipe_oe_synth(struct perf_tool
*tool
,
86 union perf_event
*event
,
87 struct ordered_events
*oe __maybe_unused
)
89 return perf_event__repipe_synth(tool
, event
);
93 static int perf_event__drop_oe(struct perf_tool
*tool __maybe_unused
,
94 union perf_event
*event __maybe_unused
,
95 struct ordered_events
*oe __maybe_unused
)
101 static int perf_event__repipe_op2_synth(struct perf_session
*session
,
102 union perf_event
*event
)
104 return perf_event__repipe_synth(session
->tool
, event
);
107 static int perf_event__repipe_op4_synth(struct perf_session
*session
,
108 union perf_event
*event
,
109 u64 data __maybe_unused
)
111 return perf_event__repipe_synth(session
->tool
, event
);
114 static int perf_event__repipe_attr(struct perf_tool
*tool
,
115 union perf_event
*event
,
116 struct evlist
**pevlist
)
118 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
,
122 ret
= perf_event__process_attr(tool
, event
, pevlist
);
126 if (!inject
->output
.is_pipe
)
129 return perf_event__repipe_synth(tool
, event
);
132 static int perf_event__repipe_event_update(struct perf_tool
*tool
,
133 union perf_event
*event
,
134 struct evlist
**pevlist __maybe_unused
)
136 return perf_event__repipe_synth(tool
, event
);
139 #ifdef HAVE_AUXTRACE_SUPPORT
141 static int copy_bytes(struct perf_inject
*inject
, int fd
, off_t size
)
148 ssz
= read(fd
, buf
, min(size
, (off_t
)sizeof(buf
)));
151 ret
= output_bytes(inject
, buf
, ssz
);
160 static s64
perf_event__repipe_auxtrace(struct perf_session
*session
,
161 union perf_event
*event
)
163 struct perf_tool
*tool
= session
->tool
;
164 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
,
168 inject
->have_auxtrace
= true;
170 if (!inject
->output
.is_pipe
) {
173 offset
= lseek(inject
->output
.file
.fd
, 0, SEEK_CUR
);
176 ret
= auxtrace_index__auxtrace_event(&session
->auxtrace_index
,
182 if (perf_data__is_pipe(session
->data
) || !session
->one_mmap
) {
183 ret
= output_bytes(inject
, event
, event
->header
.size
);
186 ret
= copy_bytes(inject
, perf_data__fd(session
->data
),
187 event
->auxtrace
.size
);
189 ret
= output_bytes(inject
, event
,
190 event
->header
.size
+ event
->auxtrace
.size
);
195 return event
->auxtrace
.size
;
201 perf_event__repipe_auxtrace(struct perf_session
*session __maybe_unused
,
202 union perf_event
*event __maybe_unused
)
204 pr_err("AUX area tracing not supported\n");
210 static int perf_event__repipe(struct perf_tool
*tool
,
211 union perf_event
*event
,
212 struct perf_sample
*sample __maybe_unused
,
213 struct machine
*machine __maybe_unused
)
215 return perf_event__repipe_synth(tool
, event
);
218 static int perf_event__drop(struct perf_tool
*tool __maybe_unused
,
219 union perf_event
*event __maybe_unused
,
220 struct perf_sample
*sample __maybe_unused
,
221 struct machine
*machine __maybe_unused
)
226 static int perf_event__drop_aux(struct perf_tool
*tool
,
227 union perf_event
*event __maybe_unused
,
228 struct perf_sample
*sample
,
229 struct machine
*machine __maybe_unused
)
231 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
234 inject
->aux_id
= sample
->id
;
239 static union perf_event
*
240 perf_inject__cut_auxtrace_sample(struct perf_inject
*inject
,
241 union perf_event
*event
,
242 struct perf_sample
*sample
)
244 size_t sz1
= sample
->aux_sample
.data
- (void *)event
;
245 size_t sz2
= event
->header
.size
- sample
->aux_sample
.size
- sz1
;
246 union perf_event
*ev
= (union perf_event
*)inject
->event_copy
;
248 if (sz1
> event
->header
.size
|| sz2
> event
->header
.size
||
249 sz1
+ sz2
> event
->header
.size
||
250 sz1
< sizeof(struct perf_event_header
) + sizeof(u64
))
253 memcpy(ev
, event
, sz1
);
254 memcpy((void *)ev
+ sz1
, (void *)event
+ event
->header
.size
- sz2
, sz2
);
255 ev
->header
.size
= sz1
+ sz2
;
256 ((u64
*)((void *)ev
+ sz1
))[-1] = 0;
261 typedef int (*inject_handler
)(struct perf_tool
*tool
,
262 union perf_event
*event
,
263 struct perf_sample
*sample
,
265 struct machine
*machine
);
267 static int perf_event__repipe_sample(struct perf_tool
*tool
,
268 union perf_event
*event
,
269 struct perf_sample
*sample
,
271 struct machine
*machine
)
273 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
,
276 if (evsel
&& evsel
->handler
) {
277 inject_handler f
= evsel
->handler
;
278 return f(tool
, event
, sample
, evsel
, machine
);
281 build_id__mark_dso_hit(tool
, event
, sample
, evsel
, machine
);
283 if (inject
->itrace_synth_opts
.set
&& sample
->aux_sample
.size
)
284 event
= perf_inject__cut_auxtrace_sample(inject
, event
, sample
);
286 return perf_event__repipe_synth(tool
, event
);
289 static int perf_event__repipe_mmap(struct perf_tool
*tool
,
290 union perf_event
*event
,
291 struct perf_sample
*sample
,
292 struct machine
*machine
)
296 err
= perf_event__process_mmap(tool
, event
, sample
, machine
);
297 perf_event__repipe(tool
, event
, sample
, machine
);
303 static int perf_event__jit_repipe_mmap(struct perf_tool
*tool
,
304 union perf_event
*event
,
305 struct perf_sample
*sample
,
306 struct machine
*machine
)
308 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
313 * if jit marker, then inject jit mmaps and generate ELF images
315 ret
= jit_process(inject
->session
, &inject
->output
, machine
,
316 event
->mmap
.filename
, event
->mmap
.pid
, &n
);
320 inject
->bytes_written
+= n
;
323 return perf_event__repipe_mmap(tool
, event
, sample
, machine
);
327 static struct dso
*findnew_dso(int pid
, int tid
, const char *filename
,
328 struct dso_id
*id
, struct machine
*machine
)
330 struct thread
*thread
;
331 struct nsinfo
*nsi
= NULL
;
336 thread
= machine__findnew_thread(machine
, pid
, tid
);
337 if (thread
== NULL
) {
338 pr_err("cannot find or create a task %d/%d.\n", tid
, pid
);
342 vdso
= is_vdso_map(filename
);
343 nsi
= nsinfo__get(thread
->nsinfo
);
346 /* The vdso maps are always on the host and not the
347 * container. Ensure that we don't use setns to look
350 nnsi
= nsinfo__copy(nsi
);
353 nnsi
->need_setns
= false;
356 dso
= machine__findnew_vdso(machine
, thread
);
358 dso
= machine__findnew_dso_id(machine
, filename
, id
);
370 static int perf_event__repipe_buildid_mmap(struct perf_tool
*tool
,
371 union perf_event
*event
,
372 struct perf_sample
*sample
,
373 struct machine
*machine
)
377 dso
= findnew_dso(event
->mmap
.pid
, event
->mmap
.tid
,
378 event
->mmap
.filename
, NULL
, machine
);
380 if (dso
&& !dso
->hit
) {
382 dso__inject_build_id(dso
, tool
, machine
, sample
->cpumode
, 0);
386 return perf_event__repipe(tool
, event
, sample
, machine
);
389 static int perf_event__repipe_mmap2(struct perf_tool
*tool
,
390 union perf_event
*event
,
391 struct perf_sample
*sample
,
392 struct machine
*machine
)
396 err
= perf_event__process_mmap2(tool
, event
, sample
, machine
);
397 perf_event__repipe(tool
, event
, sample
, machine
);
403 static int perf_event__jit_repipe_mmap2(struct perf_tool
*tool
,
404 union perf_event
*event
,
405 struct perf_sample
*sample
,
406 struct machine
*machine
)
408 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
413 * if jit marker, then inject jit mmaps and generate ELF images
415 ret
= jit_process(inject
->session
, &inject
->output
, machine
,
416 event
->mmap2
.filename
, event
->mmap2
.pid
, &n
);
420 inject
->bytes_written
+= n
;
423 return perf_event__repipe_mmap2(tool
, event
, sample
, machine
);
427 static int perf_event__repipe_buildid_mmap2(struct perf_tool
*tool
,
428 union perf_event
*event
,
429 struct perf_sample
*sample
,
430 struct machine
*machine
)
432 struct dso_id dso_id
= {
433 .maj
= event
->mmap2
.maj
,
434 .min
= event
->mmap2
.min
,
435 .ino
= event
->mmap2
.ino
,
436 .ino_generation
= event
->mmap2
.ino_generation
,
440 dso
= findnew_dso(event
->mmap2
.pid
, event
->mmap2
.tid
,
441 event
->mmap2
.filename
, &dso_id
, machine
);
443 if (dso
&& !dso
->hit
) {
445 dso__inject_build_id(dso
, tool
, machine
, sample
->cpumode
,
450 perf_event__repipe(tool
, event
, sample
, machine
);
455 static int perf_event__repipe_fork(struct perf_tool
*tool
,
456 union perf_event
*event
,
457 struct perf_sample
*sample
,
458 struct machine
*machine
)
462 err
= perf_event__process_fork(tool
, event
, sample
, machine
);
463 perf_event__repipe(tool
, event
, sample
, machine
);
468 static int perf_event__repipe_comm(struct perf_tool
*tool
,
469 union perf_event
*event
,
470 struct perf_sample
*sample
,
471 struct machine
*machine
)
475 err
= perf_event__process_comm(tool
, event
, sample
, machine
);
476 perf_event__repipe(tool
, event
, sample
, machine
);
481 static int perf_event__repipe_namespaces(struct perf_tool
*tool
,
482 union perf_event
*event
,
483 struct perf_sample
*sample
,
484 struct machine
*machine
)
486 int err
= perf_event__process_namespaces(tool
, event
, sample
, machine
);
488 perf_event__repipe(tool
, event
, sample
, machine
);
493 static int perf_event__repipe_exit(struct perf_tool
*tool
,
494 union perf_event
*event
,
495 struct perf_sample
*sample
,
496 struct machine
*machine
)
500 err
= perf_event__process_exit(tool
, event
, sample
, machine
);
501 perf_event__repipe(tool
, event
, sample
, machine
);
506 static int perf_event__repipe_tracing_data(struct perf_session
*session
,
507 union perf_event
*event
)
511 perf_event__repipe_synth(session
->tool
, event
);
512 err
= perf_event__process_tracing_data(session
, event
);
517 static int dso__read_build_id(struct dso
*dso
)
521 if (dso
->has_build_id
)
524 nsinfo__mountns_enter(dso
->nsinfo
, &nsc
);
525 if (filename__read_build_id(dso
->long_name
, dso
->build_id
,
526 sizeof(dso
->build_id
)) > 0) {
527 dso
->has_build_id
= true;
529 nsinfo__mountns_exit(&nsc
);
531 return dso
->has_build_id
? 0 : -1;
534 static int dso__inject_build_id(struct dso
*dso
, struct perf_tool
*tool
,
535 struct machine
*machine
, u8 cpumode
, u32 flags
)
539 if (is_anon_memory(dso
->long_name
) || flags
& MAP_HUGETLB
)
541 if (is_no_dso_memory(dso
->long_name
))
544 if (dso__read_build_id(dso
) < 0) {
545 pr_debug("no build_id found for %s\n", dso
->long_name
);
549 err
= perf_event__synthesize_build_id(tool
, dso
, cpumode
,
550 perf_event__repipe
, machine
);
552 pr_err("Can't synthesize build_id event for %s\n", dso
->long_name
);
559 int perf_event__inject_buildid(struct perf_tool
*tool
, union perf_event
*event
,
560 struct perf_sample
*sample
,
561 struct evsel
*evsel __maybe_unused
,
562 struct machine
*machine
)
564 struct addr_location al
;
565 struct thread
*thread
;
567 thread
= machine__findnew_thread(machine
, sample
->pid
, sample
->tid
);
568 if (thread
== NULL
) {
569 pr_err("problem processing %d event, skipping it.\n",
574 if (thread__find_map(thread
, sample
->cpumode
, sample
->ip
, &al
)) {
575 if (!al
.map
->dso
->hit
) {
576 al
.map
->dso
->hit
= 1;
577 dso__inject_build_id(al
.map
->dso
, tool
, machine
,
578 sample
->cpumode
, al
.map
->flags
);
584 perf_event__repipe(tool
, event
, sample
, machine
);
588 static int perf_inject__sched_process_exit(struct perf_tool
*tool
,
589 union perf_event
*event __maybe_unused
,
590 struct perf_sample
*sample
,
591 struct evsel
*evsel __maybe_unused
,
592 struct machine
*machine __maybe_unused
)
594 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
595 struct event_entry
*ent
;
597 list_for_each_entry(ent
, &inject
->samples
, node
) {
598 if (sample
->tid
== ent
->tid
) {
599 list_del_init(&ent
->node
);
608 static int perf_inject__sched_switch(struct perf_tool
*tool
,
609 union perf_event
*event
,
610 struct perf_sample
*sample
,
612 struct machine
*machine
)
614 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
615 struct event_entry
*ent
;
617 perf_inject__sched_process_exit(tool
, event
, sample
, evsel
, machine
);
619 ent
= malloc(event
->header
.size
+ sizeof(struct event_entry
));
621 color_fprintf(stderr
, PERF_COLOR_RED
,
622 "Not enough memory to process sched switch event!");
626 ent
->tid
= sample
->tid
;
627 memcpy(&ent
->event
, event
, event
->header
.size
);
628 list_add(&ent
->node
, &inject
->samples
);
632 static int perf_inject__sched_stat(struct perf_tool
*tool
,
633 union perf_event
*event __maybe_unused
,
634 struct perf_sample
*sample
,
636 struct machine
*machine
)
638 struct event_entry
*ent
;
639 union perf_event
*event_sw
;
640 struct perf_sample sample_sw
;
641 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
642 u32 pid
= evsel__intval(evsel
, sample
, "pid");
644 list_for_each_entry(ent
, &inject
->samples
, node
) {
651 event_sw
= &ent
->event
[0];
652 evsel__parse_sample(evsel
, event_sw
, &sample_sw
);
654 sample_sw
.period
= sample
->period
;
655 sample_sw
.time
= sample
->time
;
656 perf_event__synthesize_sample(event_sw
, evsel
->core
.attr
.sample_type
,
657 evsel
->core
.attr
.read_format
, &sample_sw
);
658 build_id__mark_dso_hit(tool
, event_sw
, &sample_sw
, evsel
, machine
);
659 return perf_event__repipe(tool
, event_sw
, &sample_sw
, machine
);
662 static void sig_handler(int sig __maybe_unused
)
667 static int evsel__check_stype(struct evsel
*evsel
, u64 sample_type
, const char *sample_msg
)
669 struct perf_event_attr
*attr
= &evsel
->core
.attr
;
670 const char *name
= evsel__name(evsel
);
672 if (!(attr
->sample_type
& sample_type
)) {
673 pr_err("Samples for %s event do not have %s attribute set.",
681 static int drop_sample(struct perf_tool
*tool __maybe_unused
,
682 union perf_event
*event __maybe_unused
,
683 struct perf_sample
*sample __maybe_unused
,
684 struct evsel
*evsel __maybe_unused
,
685 struct machine
*machine __maybe_unused
)
690 static void strip_init(struct perf_inject
*inject
)
692 struct evlist
*evlist
= inject
->session
->evlist
;
695 inject
->tool
.context_switch
= perf_event__drop
;
697 evlist__for_each_entry(evlist
, evsel
)
698 evsel
->handler
= drop_sample
;
701 static int __cmd_inject(struct perf_inject
*inject
)
704 struct perf_session
*session
= inject
->session
;
705 struct perf_data
*data_out
= &inject
->output
;
706 int fd
= perf_data__fd(data_out
);
707 u64 output_data_offset
;
709 signal(SIGINT
, sig_handler
);
711 if (inject
->build_ids
|| inject
->sched_stat
||
712 inject
->itrace_synth_opts
.set
|| inject
->build_id_all
) {
713 inject
->tool
.mmap
= perf_event__repipe_mmap
;
714 inject
->tool
.mmap2
= perf_event__repipe_mmap2
;
715 inject
->tool
.fork
= perf_event__repipe_fork
;
716 inject
->tool
.tracing_data
= perf_event__repipe_tracing_data
;
719 output_data_offset
= session
->header
.data_offset
;
721 if (inject
->build_id_all
) {
722 inject
->tool
.mmap
= perf_event__repipe_buildid_mmap
;
723 inject
->tool
.mmap2
= perf_event__repipe_buildid_mmap2
;
724 } else if (inject
->build_ids
) {
725 inject
->tool
.sample
= perf_event__inject_buildid
;
726 } else if (inject
->sched_stat
) {
729 evlist__for_each_entry(session
->evlist
, evsel
) {
730 const char *name
= evsel__name(evsel
);
732 if (!strcmp(name
, "sched:sched_switch")) {
733 if (evsel__check_stype(evsel
, PERF_SAMPLE_TID
, "TID"))
736 evsel
->handler
= perf_inject__sched_switch
;
737 } else if (!strcmp(name
, "sched:sched_process_exit"))
738 evsel
->handler
= perf_inject__sched_process_exit
;
739 else if (!strncmp(name
, "sched:sched_stat_", 17))
740 evsel
->handler
= perf_inject__sched_stat
;
742 } else if (inject
->itrace_synth_opts
.set
) {
743 session
->itrace_synth_opts
= &inject
->itrace_synth_opts
;
744 inject
->itrace_synth_opts
.inject
= true;
745 inject
->tool
.comm
= perf_event__repipe_comm
;
746 inject
->tool
.namespaces
= perf_event__repipe_namespaces
;
747 inject
->tool
.exit
= perf_event__repipe_exit
;
748 inject
->tool
.id_index
= perf_event__process_id_index
;
749 inject
->tool
.auxtrace_info
= perf_event__process_auxtrace_info
;
750 inject
->tool
.auxtrace
= perf_event__process_auxtrace
;
751 inject
->tool
.aux
= perf_event__drop_aux
;
752 inject
->tool
.itrace_start
= perf_event__drop_aux
,
753 inject
->tool
.ordered_events
= true;
754 inject
->tool
.ordering_requires_timestamps
= true;
755 /* Allow space in the header for new attributes */
756 output_data_offset
= 4096;
761 if (!inject
->itrace_synth_opts
.set
)
762 auxtrace_index__free(&session
->auxtrace_index
);
764 if (!data_out
->is_pipe
)
765 lseek(fd
, output_data_offset
, SEEK_SET
);
767 ret
= perf_session__process_events(session
);
771 if (!data_out
->is_pipe
) {
772 if (inject
->build_ids
)
773 perf_header__set_feat(&session
->header
,
776 * Keep all buildids when there is unprocessed AUX data because
777 * it is not known which ones the AUX trace hits.
779 if (perf_header__has_feat(&session
->header
, HEADER_BUILD_ID
) &&
780 inject
->have_auxtrace
&& !inject
->itrace_synth_opts
.set
)
781 dsos__hit_all(session
);
783 * The AUX areas have been removed and replaced with
784 * synthesized hardware events, so clear the feature flag and
787 if (inject
->itrace_synth_opts
.set
) {
790 perf_header__clear_feat(&session
->header
,
792 if (inject
->itrace_synth_opts
.last_branch
||
793 inject
->itrace_synth_opts
.add_last_branch
)
794 perf_header__set_feat(&session
->header
,
795 HEADER_BRANCH_STACK
);
796 evsel
= perf_evlist__id2evsel_strict(session
->evlist
,
799 pr_debug("Deleting %s\n", evsel__name(evsel
));
800 evlist__remove(session
->evlist
, evsel
);
801 evsel__delete(evsel
);
804 session
->header
.data_offset
= output_data_offset
;
805 session
->header
.data_size
= inject
->bytes_written
;
806 perf_session__write_header(session
, session
->evlist
, fd
, true);
812 int cmd_inject(int argc
, const char **argv
)
814 struct perf_inject inject
= {
816 .sample
= perf_event__repipe_sample
,
817 .read
= perf_event__repipe_sample
,
818 .mmap
= perf_event__repipe
,
819 .mmap2
= perf_event__repipe
,
820 .comm
= perf_event__repipe
,
821 .namespaces
= perf_event__repipe
,
822 .cgroup
= perf_event__repipe
,
823 .fork
= perf_event__repipe
,
824 .exit
= perf_event__repipe
,
825 .lost
= perf_event__repipe
,
826 .lost_samples
= perf_event__repipe
,
827 .aux
= perf_event__repipe
,
828 .itrace_start
= perf_event__repipe
,
829 .context_switch
= perf_event__repipe
,
830 .throttle
= perf_event__repipe
,
831 .unthrottle
= perf_event__repipe
,
832 .ksymbol
= perf_event__repipe
,
833 .bpf
= perf_event__repipe
,
834 .text_poke
= perf_event__repipe
,
835 .attr
= perf_event__repipe_attr
,
836 .event_update
= perf_event__repipe_event_update
,
837 .tracing_data
= perf_event__repipe_op2_synth
,
838 .finished_round
= perf_event__repipe_oe_synth
,
839 .build_id
= perf_event__repipe_op2_synth
,
840 .id_index
= perf_event__repipe_op2_synth
,
841 .auxtrace_info
= perf_event__repipe_op2_synth
,
842 .auxtrace_error
= perf_event__repipe_op2_synth
,
843 .time_conv
= perf_event__repipe_op2_synth
,
844 .thread_map
= perf_event__repipe_op2_synth
,
845 .cpu_map
= perf_event__repipe_op2_synth
,
846 .stat_config
= perf_event__repipe_op2_synth
,
847 .stat
= perf_event__repipe_op2_synth
,
848 .stat_round
= perf_event__repipe_op2_synth
,
849 .feature
= perf_event__repipe_op2_synth
,
850 .compressed
= perf_event__repipe_op4_synth
,
851 .auxtrace
= perf_event__repipe_auxtrace
,
854 .samples
= LIST_HEAD_INIT(inject
.samples
),
857 .mode
= PERF_DATA_MODE_WRITE
,
860 struct perf_data data
= {
861 .mode
= PERF_DATA_MODE_READ
,
865 struct option options
[] = {
866 OPT_BOOLEAN('b', "build-ids", &inject
.build_ids
,
867 "Inject build-ids into the output stream"),
868 OPT_BOOLEAN(0, "buildid-all", &inject
.build_id_all
,
869 "Inject build-ids of all DSOs into the output stream"),
870 OPT_STRING('i', "input", &inject
.input_name
, "file",
872 OPT_STRING('o', "output", &inject
.output
.path
, "file",
874 OPT_BOOLEAN('s', "sched-stat", &inject
.sched_stat
,
875 "Merge sched-stat and sched-switch for getting events "
876 "where and how long tasks slept"),
878 OPT_BOOLEAN('j', "jit", &inject
.jit_mode
, "merge jitdump files into perf.data file"),
880 OPT_INCR('v', "verbose", &verbose
,
881 "be more verbose (show build ids, etc)"),
882 OPT_STRING(0, "kallsyms", &symbol_conf
.kallsyms_name
, "file",
883 "kallsyms pathname"),
884 OPT_BOOLEAN('f', "force", &data
.force
, "don't complain, do it"),
885 OPT_CALLBACK_OPTARG(0, "itrace", &inject
.itrace_synth_opts
,
886 NULL
, "opts", "Instruction Tracing options\n"
888 itrace_parse_synth_opts
),
889 OPT_BOOLEAN(0, "strip", &inject
.strip
,
890 "strip non-synthesized events (use with --itrace)"),
893 const char * const inject_usage
[] = {
894 "perf inject [<options>]",
898 set_option_nobuild(options
, 'j', "jit", "NO_LIBELF=1", true);
900 argc
= parse_options(argc
, argv
, options
, inject_usage
, 0);
903 * Any (unrecognized) arguments left?
906 usage_with_options(inject_usage
, options
);
908 if (inject
.strip
&& !inject
.itrace_synth_opts
.set
) {
909 pr_err("--strip option requires --itrace option\n");
913 if (perf_data__open(&inject
.output
)) {
914 perror("failed to create output file");
918 data
.path
= inject
.input_name
;
919 inject
.session
= perf_session__new(&data
, true, &inject
.tool
);
920 if (IS_ERR(inject
.session
))
921 return PTR_ERR(inject
.session
);
923 if (zstd_init(&(inject
.session
->zstd_data
), 0) < 0)
924 pr_warning("Decompression initialization failed.\n");
926 if (inject
.build_ids
&& !inject
.build_id_all
) {
928 * to make sure the mmap records are ordered correctly
929 * and so that the correct especially due to jitted code
930 * mmaps. We cannot generate the buildid hit list and
931 * inject the jit mmaps at the same time for now.
933 inject
.tool
.ordered_events
= true;
934 inject
.tool
.ordering_requires_timestamps
= true;
937 if (inject
.sched_stat
) {
938 inject
.tool
.ordered_events
= true;
942 if (inject
.jit_mode
) {
943 inject
.tool
.mmap2
= perf_event__jit_repipe_mmap2
;
944 inject
.tool
.mmap
= perf_event__jit_repipe_mmap
;
945 inject
.tool
.ordered_events
= true;
946 inject
.tool
.ordering_requires_timestamps
= true;
948 * JIT MMAP injection injects all MMAP events in one go, so it
949 * does not obey finished_round semantics.
951 inject
.tool
.finished_round
= perf_event__drop_oe
;
954 ret
= symbol__init(&inject
.session
->header
.env
);
958 ret
= __cmd_inject(&inject
);
961 zstd_fini(&(inject
.session
->zstd_data
));
962 perf_session__delete(inject
.session
);