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
12 #include "util/color.h"
13 #include "util/evlist.h"
14 #include "util/evsel.h"
15 #include "util/session.h"
16 #include "util/tool.h"
17 #include "util/debug.h"
18 #include "util/build-id.h"
19 #include "util/data.h"
20 #include "util/auxtrace.h"
22 #include "util/thread.h"
24 #include <subcmd/parse-options.h>
26 #include <linux/list.h>
31 struct perf_tool tool
;
32 struct perf_session
*session
;
38 const char *input_name
;
39 struct perf_data output
;
42 struct list_head samples
;
43 struct itrace_synth_opts itrace_synth_opts
;
47 struct list_head node
;
49 union perf_event event
[0];
52 static int output_bytes(struct perf_inject
*inject
, void *buf
, size_t sz
)
56 size
= perf_data__write(&inject
->output
, buf
, sz
);
60 inject
->bytes_written
+= size
;
64 static int perf_event__repipe_synth(struct perf_tool
*tool
,
65 union perf_event
*event
)
67 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
,
70 return output_bytes(inject
, event
, event
->header
.size
);
73 static int perf_event__repipe_oe_synth(struct perf_tool
*tool
,
74 union perf_event
*event
,
75 struct ordered_events
*oe __maybe_unused
)
77 return perf_event__repipe_synth(tool
, event
);
81 static int perf_event__drop_oe(struct perf_tool
*tool __maybe_unused
,
82 union perf_event
*event __maybe_unused
,
83 struct ordered_events
*oe __maybe_unused
)
89 static int perf_event__repipe_op2_synth(struct perf_session
*session
,
90 union perf_event
*event
)
92 return perf_event__repipe_synth(session
->tool
, event
);
95 static int perf_event__repipe_attr(struct perf_tool
*tool
,
96 union perf_event
*event
,
97 struct perf_evlist
**pevlist
)
99 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
,
103 ret
= perf_event__process_attr(tool
, event
, pevlist
);
107 if (!inject
->output
.is_pipe
)
110 return perf_event__repipe_synth(tool
, event
);
113 #ifdef HAVE_AUXTRACE_SUPPORT
115 static int copy_bytes(struct perf_inject
*inject
, int fd
, off_t size
)
122 ssz
= read(fd
, buf
, min(size
, (off_t
)sizeof(buf
)));
125 ret
= output_bytes(inject
, buf
, ssz
);
134 static s64
perf_event__repipe_auxtrace(struct perf_session
*session
,
135 union perf_event
*event
)
137 struct perf_tool
*tool
= session
->tool
;
138 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
,
142 inject
->have_auxtrace
= true;
144 if (!inject
->output
.is_pipe
) {
147 offset
= lseek(inject
->output
.file
.fd
, 0, SEEK_CUR
);
150 ret
= auxtrace_index__auxtrace_event(&session
->auxtrace_index
,
156 if (perf_data__is_pipe(session
->data
) || !session
->one_mmap
) {
157 ret
= output_bytes(inject
, event
, event
->header
.size
);
160 ret
= copy_bytes(inject
, perf_data__fd(session
->data
),
161 event
->auxtrace
.size
);
163 ret
= output_bytes(inject
, event
,
164 event
->header
.size
+ event
->auxtrace
.size
);
169 return event
->auxtrace
.size
;
175 perf_event__repipe_auxtrace(struct perf_session
*session __maybe_unused
,
176 union perf_event
*event __maybe_unused
)
178 pr_err("AUX area tracing not supported\n");
184 static int perf_event__repipe(struct perf_tool
*tool
,
185 union perf_event
*event
,
186 struct perf_sample
*sample __maybe_unused
,
187 struct machine
*machine __maybe_unused
)
189 return perf_event__repipe_synth(tool
, event
);
192 static int perf_event__drop(struct perf_tool
*tool __maybe_unused
,
193 union perf_event
*event __maybe_unused
,
194 struct perf_sample
*sample __maybe_unused
,
195 struct machine
*machine __maybe_unused
)
200 static int perf_event__drop_aux(struct perf_tool
*tool
,
201 union perf_event
*event __maybe_unused
,
202 struct perf_sample
*sample
,
203 struct machine
*machine __maybe_unused
)
205 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
208 inject
->aux_id
= sample
->id
;
213 typedef int (*inject_handler
)(struct perf_tool
*tool
,
214 union perf_event
*event
,
215 struct perf_sample
*sample
,
216 struct perf_evsel
*evsel
,
217 struct machine
*machine
);
219 static int perf_event__repipe_sample(struct perf_tool
*tool
,
220 union perf_event
*event
,
221 struct perf_sample
*sample
,
222 struct perf_evsel
*evsel
,
223 struct machine
*machine
)
225 if (evsel
->handler
) {
226 inject_handler f
= evsel
->handler
;
227 return f(tool
, event
, sample
, evsel
, machine
);
230 build_id__mark_dso_hit(tool
, event
, sample
, evsel
, machine
);
232 return perf_event__repipe_synth(tool
, event
);
235 static int perf_event__repipe_mmap(struct perf_tool
*tool
,
236 union perf_event
*event
,
237 struct perf_sample
*sample
,
238 struct machine
*machine
)
242 err
= perf_event__process_mmap(tool
, event
, sample
, machine
);
243 perf_event__repipe(tool
, event
, sample
, machine
);
249 static int perf_event__jit_repipe_mmap(struct perf_tool
*tool
,
250 union perf_event
*event
,
251 struct perf_sample
*sample
,
252 struct machine
*machine
)
254 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
259 * if jit marker, then inject jit mmaps and generate ELF images
261 ret
= jit_process(inject
->session
, &inject
->output
, machine
,
262 event
->mmap
.filename
, sample
->pid
, &n
);
266 inject
->bytes_written
+= n
;
269 return perf_event__repipe_mmap(tool
, event
, sample
, machine
);
273 static int perf_event__repipe_mmap2(struct perf_tool
*tool
,
274 union perf_event
*event
,
275 struct perf_sample
*sample
,
276 struct machine
*machine
)
280 err
= perf_event__process_mmap2(tool
, event
, sample
, machine
);
281 perf_event__repipe(tool
, event
, sample
, machine
);
287 static int perf_event__jit_repipe_mmap2(struct perf_tool
*tool
,
288 union perf_event
*event
,
289 struct perf_sample
*sample
,
290 struct machine
*machine
)
292 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
297 * if jit marker, then inject jit mmaps and generate ELF images
299 ret
= jit_process(inject
->session
, &inject
->output
, machine
,
300 event
->mmap2
.filename
, sample
->pid
, &n
);
304 inject
->bytes_written
+= n
;
307 return perf_event__repipe_mmap2(tool
, event
, sample
, machine
);
311 static int perf_event__repipe_fork(struct perf_tool
*tool
,
312 union perf_event
*event
,
313 struct perf_sample
*sample
,
314 struct machine
*machine
)
318 err
= perf_event__process_fork(tool
, event
, sample
, machine
);
319 perf_event__repipe(tool
, event
, sample
, machine
);
324 static int perf_event__repipe_comm(struct perf_tool
*tool
,
325 union perf_event
*event
,
326 struct perf_sample
*sample
,
327 struct machine
*machine
)
331 err
= perf_event__process_comm(tool
, event
, sample
, machine
);
332 perf_event__repipe(tool
, event
, sample
, machine
);
337 static int perf_event__repipe_namespaces(struct perf_tool
*tool
,
338 union perf_event
*event
,
339 struct perf_sample
*sample
,
340 struct machine
*machine
)
342 int err
= perf_event__process_namespaces(tool
, event
, sample
, machine
);
344 perf_event__repipe(tool
, event
, sample
, machine
);
349 static int perf_event__repipe_exit(struct perf_tool
*tool
,
350 union perf_event
*event
,
351 struct perf_sample
*sample
,
352 struct machine
*machine
)
356 err
= perf_event__process_exit(tool
, event
, sample
, machine
);
357 perf_event__repipe(tool
, event
, sample
, machine
);
362 static int perf_event__repipe_tracing_data(struct perf_session
*session
,
363 union perf_event
*event
)
367 perf_event__repipe_synth(session
->tool
, event
);
368 err
= perf_event__process_tracing_data(session
, event
);
373 static int perf_event__repipe_id_index(struct perf_session
*session
,
374 union perf_event
*event
)
378 perf_event__repipe_synth(session
->tool
, event
);
379 err
= perf_event__process_id_index(session
, event
);
384 static int dso__read_build_id(struct dso
*dso
)
386 if (dso
->has_build_id
)
389 if (filename__read_build_id(dso
->long_name
, dso
->build_id
,
390 sizeof(dso
->build_id
)) > 0) {
391 dso
->has_build_id
= true;
398 static int dso__inject_build_id(struct dso
*dso
, struct perf_tool
*tool
,
399 struct machine
*machine
)
401 u16 misc
= PERF_RECORD_MISC_USER
;
404 if (dso__read_build_id(dso
) < 0) {
405 pr_debug("no build_id found for %s\n", dso
->long_name
);
410 misc
= PERF_RECORD_MISC_KERNEL
;
412 err
= perf_event__synthesize_build_id(tool
, dso
, misc
, perf_event__repipe
,
415 pr_err("Can't synthesize build_id event for %s\n", dso
->long_name
);
422 static int perf_event__inject_buildid(struct perf_tool
*tool
,
423 union perf_event
*event
,
424 struct perf_sample
*sample
,
425 struct perf_evsel
*evsel __maybe_unused
,
426 struct machine
*machine
)
428 struct addr_location al
;
429 struct thread
*thread
;
431 thread
= machine__findnew_thread(machine
, sample
->pid
, sample
->tid
);
432 if (thread
== NULL
) {
433 pr_err("problem processing %d event, skipping it.\n",
438 if (thread__find_map(thread
, sample
->cpumode
, sample
->ip
, &al
)) {
439 if (!al
.map
->dso
->hit
) {
440 al
.map
->dso
->hit
= 1;
441 if (map__load(al
.map
) >= 0) {
442 dso__inject_build_id(al
.map
->dso
, tool
, machine
);
444 * If this fails, too bad, let the other side
445 * account this as unresolved.
448 #ifdef HAVE_LIBELF_SUPPORT
449 pr_warning("no symbols found in %s, maybe "
450 "install a debug package?\n",
451 al
.map
->dso
->long_name
);
459 perf_event__repipe(tool
, event
, sample
, machine
);
463 static int perf_inject__sched_process_exit(struct perf_tool
*tool
,
464 union perf_event
*event __maybe_unused
,
465 struct perf_sample
*sample
,
466 struct perf_evsel
*evsel __maybe_unused
,
467 struct machine
*machine __maybe_unused
)
469 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
470 struct event_entry
*ent
;
472 list_for_each_entry(ent
, &inject
->samples
, node
) {
473 if (sample
->tid
== ent
->tid
) {
474 list_del_init(&ent
->node
);
483 static int perf_inject__sched_switch(struct perf_tool
*tool
,
484 union perf_event
*event
,
485 struct perf_sample
*sample
,
486 struct perf_evsel
*evsel
,
487 struct machine
*machine
)
489 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
490 struct event_entry
*ent
;
492 perf_inject__sched_process_exit(tool
, event
, sample
, evsel
, machine
);
494 ent
= malloc(event
->header
.size
+ sizeof(struct event_entry
));
496 color_fprintf(stderr
, PERF_COLOR_RED
,
497 "Not enough memory to process sched switch event!");
501 ent
->tid
= sample
->tid
;
502 memcpy(&ent
->event
, event
, event
->header
.size
);
503 list_add(&ent
->node
, &inject
->samples
);
507 static int perf_inject__sched_stat(struct perf_tool
*tool
,
508 union perf_event
*event __maybe_unused
,
509 struct perf_sample
*sample
,
510 struct perf_evsel
*evsel
,
511 struct machine
*machine
)
513 struct event_entry
*ent
;
514 union perf_event
*event_sw
;
515 struct perf_sample sample_sw
;
516 struct perf_inject
*inject
= container_of(tool
, struct perf_inject
, tool
);
517 u32 pid
= perf_evsel__intval(evsel
, sample
, "pid");
519 list_for_each_entry(ent
, &inject
->samples
, node
) {
526 event_sw
= &ent
->event
[0];
527 perf_evsel__parse_sample(evsel
, event_sw
, &sample_sw
);
529 sample_sw
.period
= sample
->period
;
530 sample_sw
.time
= sample
->time
;
531 perf_event__synthesize_sample(event_sw
, evsel
->attr
.sample_type
,
532 evsel
->attr
.read_format
, &sample_sw
);
533 build_id__mark_dso_hit(tool
, event_sw
, &sample_sw
, evsel
, machine
);
534 return perf_event__repipe(tool
, event_sw
, &sample_sw
, machine
);
537 static void sig_handler(int sig __maybe_unused
)
542 static int perf_evsel__check_stype(struct perf_evsel
*evsel
,
543 u64 sample_type
, const char *sample_msg
)
545 struct perf_event_attr
*attr
= &evsel
->attr
;
546 const char *name
= perf_evsel__name(evsel
);
548 if (!(attr
->sample_type
& sample_type
)) {
549 pr_err("Samples for %s event do not have %s attribute set.",
557 static int drop_sample(struct perf_tool
*tool __maybe_unused
,
558 union perf_event
*event __maybe_unused
,
559 struct perf_sample
*sample __maybe_unused
,
560 struct perf_evsel
*evsel __maybe_unused
,
561 struct machine
*machine __maybe_unused
)
566 static void strip_init(struct perf_inject
*inject
)
568 struct perf_evlist
*evlist
= inject
->session
->evlist
;
569 struct perf_evsel
*evsel
;
571 inject
->tool
.context_switch
= perf_event__drop
;
573 evlist__for_each_entry(evlist
, evsel
)
574 evsel
->handler
= drop_sample
;
577 static bool has_tracking(struct perf_evsel
*evsel
)
579 return evsel
->attr
.mmap
|| evsel
->attr
.mmap2
|| evsel
->attr
.comm
||
583 #define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \
584 PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER)
587 * In order that the perf.data file is parsable, tracking events like MMAP need
588 * their selected event to exist, except if there is only 1 selected event left
589 * and it has a compatible sample type.
591 static bool ok_to_remove(struct perf_evlist
*evlist
,
592 struct perf_evsel
*evsel_to_remove
)
594 struct perf_evsel
*evsel
;
598 if (!has_tracking(evsel_to_remove
))
601 evlist__for_each_entry(evlist
, evsel
) {
602 if (evsel
->handler
!= drop_sample
) {
604 if ((evsel
->attr
.sample_type
& COMPAT_MASK
) ==
605 (evsel_to_remove
->attr
.sample_type
& COMPAT_MASK
))
610 return ok
&& cnt
== 1;
613 static void strip_fini(struct perf_inject
*inject
)
615 struct perf_evlist
*evlist
= inject
->session
->evlist
;
616 struct perf_evsel
*evsel
, *tmp
;
618 /* Remove non-synthesized evsels if possible */
619 evlist__for_each_entry_safe(evlist
, tmp
, evsel
) {
620 if (evsel
->handler
== drop_sample
&&
621 ok_to_remove(evlist
, evsel
)) {
622 pr_debug("Deleting %s\n", perf_evsel__name(evsel
));
623 perf_evlist__remove(evlist
, evsel
);
624 perf_evsel__delete(evsel
);
629 static int __cmd_inject(struct perf_inject
*inject
)
632 struct perf_session
*session
= inject
->session
;
633 struct perf_data
*data_out
= &inject
->output
;
634 int fd
= perf_data__fd(data_out
);
635 u64 output_data_offset
;
637 signal(SIGINT
, sig_handler
);
639 if (inject
->build_ids
|| inject
->sched_stat
||
640 inject
->itrace_synth_opts
.set
) {
641 inject
->tool
.mmap
= perf_event__repipe_mmap
;
642 inject
->tool
.mmap2
= perf_event__repipe_mmap2
;
643 inject
->tool
.fork
= perf_event__repipe_fork
;
644 inject
->tool
.tracing_data
= perf_event__repipe_tracing_data
;
647 output_data_offset
= session
->header
.data_offset
;
649 if (inject
->build_ids
) {
650 inject
->tool
.sample
= perf_event__inject_buildid
;
651 } else if (inject
->sched_stat
) {
652 struct perf_evsel
*evsel
;
654 evlist__for_each_entry(session
->evlist
, evsel
) {
655 const char *name
= perf_evsel__name(evsel
);
657 if (!strcmp(name
, "sched:sched_switch")) {
658 if (perf_evsel__check_stype(evsel
, PERF_SAMPLE_TID
, "TID"))
661 evsel
->handler
= perf_inject__sched_switch
;
662 } else if (!strcmp(name
, "sched:sched_process_exit"))
663 evsel
->handler
= perf_inject__sched_process_exit
;
664 else if (!strncmp(name
, "sched:sched_stat_", 17))
665 evsel
->handler
= perf_inject__sched_stat
;
667 } else if (inject
->itrace_synth_opts
.set
) {
668 session
->itrace_synth_opts
= &inject
->itrace_synth_opts
;
669 inject
->itrace_synth_opts
.inject
= true;
670 inject
->tool
.comm
= perf_event__repipe_comm
;
671 inject
->tool
.namespaces
= perf_event__repipe_namespaces
;
672 inject
->tool
.exit
= perf_event__repipe_exit
;
673 inject
->tool
.id_index
= perf_event__repipe_id_index
;
674 inject
->tool
.auxtrace_info
= perf_event__process_auxtrace_info
;
675 inject
->tool
.auxtrace
= perf_event__process_auxtrace
;
676 inject
->tool
.aux
= perf_event__drop_aux
;
677 inject
->tool
.itrace_start
= perf_event__drop_aux
,
678 inject
->tool
.ordered_events
= true;
679 inject
->tool
.ordering_requires_timestamps
= true;
680 /* Allow space in the header for new attributes */
681 output_data_offset
= 4096;
686 if (!inject
->itrace_synth_opts
.set
)
687 auxtrace_index__free(&session
->auxtrace_index
);
689 if (!data_out
->is_pipe
)
690 lseek(fd
, output_data_offset
, SEEK_SET
);
692 ret
= perf_session__process_events(session
);
696 if (!data_out
->is_pipe
) {
697 if (inject
->build_ids
)
698 perf_header__set_feat(&session
->header
,
701 * Keep all buildids when there is unprocessed AUX data because
702 * it is not known which ones the AUX trace hits.
704 if (perf_header__has_feat(&session
->header
, HEADER_BUILD_ID
) &&
705 inject
->have_auxtrace
&& !inject
->itrace_synth_opts
.set
)
706 dsos__hit_all(session
);
708 * The AUX areas have been removed and replaced with
709 * synthesized hardware events, so clear the feature flag and
712 if (inject
->itrace_synth_opts
.set
) {
713 struct perf_evsel
*evsel
;
715 perf_header__clear_feat(&session
->header
,
717 if (inject
->itrace_synth_opts
.last_branch
)
718 perf_header__set_feat(&session
->header
,
719 HEADER_BRANCH_STACK
);
720 evsel
= perf_evlist__id2evsel_strict(session
->evlist
,
723 pr_debug("Deleting %s\n",
724 perf_evsel__name(evsel
));
725 perf_evlist__remove(session
->evlist
, evsel
);
726 perf_evsel__delete(evsel
);
731 session
->header
.data_offset
= output_data_offset
;
732 session
->header
.data_size
= inject
->bytes_written
;
733 perf_session__write_header(session
, session
->evlist
, fd
, true);
739 int cmd_inject(int argc
, const char **argv
)
741 struct perf_inject inject
= {
743 .sample
= perf_event__repipe_sample
,
744 .mmap
= perf_event__repipe
,
745 .mmap2
= perf_event__repipe
,
746 .comm
= perf_event__repipe
,
747 .fork
= perf_event__repipe
,
748 .exit
= perf_event__repipe
,
749 .lost
= perf_event__repipe
,
750 .lost_samples
= perf_event__repipe
,
751 .aux
= perf_event__repipe
,
752 .itrace_start
= perf_event__repipe
,
753 .context_switch
= perf_event__repipe
,
754 .read
= perf_event__repipe_sample
,
755 .throttle
= perf_event__repipe
,
756 .unthrottle
= perf_event__repipe
,
757 .attr
= perf_event__repipe_attr
,
758 .tracing_data
= perf_event__repipe_op2_synth
,
759 .auxtrace_info
= perf_event__repipe_op2_synth
,
760 .auxtrace
= perf_event__repipe_auxtrace
,
761 .auxtrace_error
= perf_event__repipe_op2_synth
,
762 .time_conv
= perf_event__repipe_op2_synth
,
763 .finished_round
= perf_event__repipe_oe_synth
,
764 .build_id
= perf_event__repipe_op2_synth
,
765 .id_index
= perf_event__repipe_op2_synth
,
766 .feature
= perf_event__repipe_op2_synth
,
769 .samples
= LIST_HEAD_INIT(inject
.samples
),
774 .mode
= PERF_DATA_MODE_WRITE
,
777 struct perf_data data
= {
778 .mode
= PERF_DATA_MODE_READ
,
782 struct option options
[] = {
783 OPT_BOOLEAN('b', "build-ids", &inject
.build_ids
,
784 "Inject build-ids into the output stream"),
785 OPT_STRING('i', "input", &inject
.input_name
, "file",
787 OPT_STRING('o', "output", &inject
.output
.file
.path
, "file",
789 OPT_BOOLEAN('s', "sched-stat", &inject
.sched_stat
,
790 "Merge sched-stat and sched-switch for getting events "
791 "where and how long tasks slept"),
793 OPT_BOOLEAN('j', "jit", &inject
.jit_mode
, "merge jitdump files into perf.data file"),
795 OPT_INCR('v', "verbose", &verbose
,
796 "be more verbose (show build ids, etc)"),
797 OPT_STRING(0, "kallsyms", &symbol_conf
.kallsyms_name
, "file",
798 "kallsyms pathname"),
799 OPT_BOOLEAN('f', "force", &data
.force
, "don't complain, do it"),
800 OPT_CALLBACK_OPTARG(0, "itrace", &inject
.itrace_synth_opts
,
801 NULL
, "opts", "Instruction Tracing options\n"
803 itrace_parse_synth_opts
),
804 OPT_BOOLEAN(0, "strip", &inject
.strip
,
805 "strip non-synthesized events (use with --itrace)"),
808 const char * const inject_usage
[] = {
809 "perf inject [<options>]",
813 set_option_nobuild(options
, 'j', "jit", "NO_LIBELF=1", true);
815 argc
= parse_options(argc
, argv
, options
, inject_usage
, 0);
818 * Any (unrecognized) arguments left?
821 usage_with_options(inject_usage
, options
);
823 if (inject
.strip
&& !inject
.itrace_synth_opts
.set
) {
824 pr_err("--strip option requires --itrace option\n");
828 if (perf_data__open(&inject
.output
)) {
829 perror("failed to create output file");
833 inject
.tool
.ordered_events
= inject
.sched_stat
;
835 data
.file
.path
= inject
.input_name
;
836 inject
.session
= perf_session__new(&data
, true, &inject
.tool
);
837 if (inject
.session
== NULL
)
840 if (inject
.build_ids
) {
842 * to make sure the mmap records are ordered correctly
843 * and so that the correct especially due to jitted code
844 * mmaps. We cannot generate the buildid hit list and
845 * inject the jit mmaps at the same time for now.
847 inject
.tool
.ordered_events
= true;
848 inject
.tool
.ordering_requires_timestamps
= true;
851 if (inject
.jit_mode
) {
852 inject
.tool
.mmap2
= perf_event__jit_repipe_mmap2
;
853 inject
.tool
.mmap
= perf_event__jit_repipe_mmap
;
854 inject
.tool
.ordered_events
= true;
855 inject
.tool
.ordering_requires_timestamps
= true;
857 * JIT MMAP injection injects all MMAP events in one go, so it
858 * does not obey finished_round semantics.
860 inject
.tool
.finished_round
= perf_event__drop_oe
;
863 ret
= symbol__init(&inject
.session
->header
.env
);
867 ret
= __cmd_inject(&inject
);
870 perf_session__delete(inject
.session
);