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>
34 #include <linux/string.h>
39 struct perf_tool tool;
40 struct perf_session *session;
48 bool in_place_update_dry_run;
49 const char *input_name;
50 struct perf_data output;
53 struct list_head samples;
54 struct itrace_synth_opts itrace_synth_opts;
55 char event_copy[PERF_SAMPLE_MAX_SIZE];
59 struct list_head node;
61 union perf_event event[];
64 static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool,
65 struct machine *machine, u8 cpumode, u32 flags);
67 static int output_bytes(struct perf_inject *inject, void *buf, size_t sz)
71 size = perf_data__write(&inject->output, buf, sz);
75 inject->bytes_written += size;
79 static int perf_event__repipe_synth(struct perf_tool *tool,
80 union perf_event *event)
82 struct perf_inject *inject = container_of(tool, struct perf_inject,
85 return output_bytes(inject, event, event->header.size);
88 static int perf_event__repipe_oe_synth(struct perf_tool *tool,
89 union perf_event *event,
90 struct ordered_events *oe __maybe_unused)
92 return perf_event__repipe_synth(tool, event);
96 static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused,
97 union perf_event *event __maybe_unused,
98 struct ordered_events *oe __maybe_unused)
104 static int perf_event__repipe_op2_synth(struct perf_session *session,
105 union perf_event *event)
107 return perf_event__repipe_synth(session->tool, event);
110 static int perf_event__repipe_op4_synth(struct perf_session *session,
111 union perf_event *event,
112 u64 data __maybe_unused)
114 return perf_event__repipe_synth(session->tool, event);
117 static int perf_event__repipe_attr(struct perf_tool *tool,
118 union perf_event *event,
119 struct evlist **pevlist)
121 struct perf_inject *inject = container_of(tool, struct perf_inject,
125 ret = perf_event__process_attr(tool, event, pevlist);
129 if (!inject->output.is_pipe)
132 return perf_event__repipe_synth(tool, event);
135 static int perf_event__repipe_event_update(struct perf_tool *tool,
136 union perf_event *event,
137 struct evlist **pevlist __maybe_unused)
139 return perf_event__repipe_synth(tool, event);
142 #ifdef HAVE_AUXTRACE_SUPPORT
144 static int copy_bytes(struct perf_inject *inject, int fd, off_t size)
151 ssz = read(fd, buf, min(size, (off_t)sizeof(buf)));
154 ret = output_bytes(inject, buf, ssz);
163 static s64 perf_event__repipe_auxtrace(struct perf_session *session,
164 union perf_event *event)
166 struct perf_tool *tool = session->tool;
167 struct perf_inject *inject = container_of(tool, struct perf_inject,
171 inject->have_auxtrace = true;
173 if (!inject->output.is_pipe) {
176 offset = lseek(inject->output.file.fd, 0, SEEK_CUR);
179 ret = auxtrace_index__auxtrace_event(&session->auxtrace_index,
185 if (perf_data__is_pipe(session->data) || !session->one_mmap) {
186 ret = output_bytes(inject, event, event->header.size);
189 ret = copy_bytes(inject, perf_data__fd(session->data),
190 event->auxtrace.size);
192 ret = output_bytes(inject, event,
193 event->header.size + event->auxtrace.size);
198 return event->auxtrace.size;
204 perf_event__repipe_auxtrace(struct perf_session *session __maybe_unused,
205 union perf_event *event __maybe_unused)
207 pr_err("AUX area tracing not supported\n");
213 static int perf_event__repipe(struct perf_tool *tool,
214 union perf_event *event,
215 struct perf_sample *sample __maybe_unused,
216 struct machine *machine __maybe_unused)
218 return perf_event__repipe_synth(tool, event);
221 static int perf_event__drop(struct perf_tool *tool __maybe_unused,
222 union perf_event *event __maybe_unused,
223 struct perf_sample *sample __maybe_unused,
224 struct machine *machine __maybe_unused)
229 static int perf_event__drop_aux(struct perf_tool *tool,
230 union perf_event *event __maybe_unused,
231 struct perf_sample *sample,
232 struct machine *machine __maybe_unused)
234 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
237 inject->aux_id = sample->id;
242 static union perf_event *
243 perf_inject__cut_auxtrace_sample(struct perf_inject *inject,
244 union perf_event *event,
245 struct perf_sample *sample)
247 size_t sz1 = sample->aux_sample.data - (void *)event;
248 size_t sz2 = event->header.size - sample->aux_sample.size - sz1;
249 union perf_event *ev = (union perf_event *)inject->event_copy;
251 if (sz1 > event->header.size || sz2 > event->header.size ||
252 sz1 + sz2 > event->header.size ||
253 sz1 < sizeof(struct perf_event_header) + sizeof(u64))
256 memcpy(ev, event, sz1);
257 memcpy((void *)ev + sz1, (void *)event + event->header.size - sz2, sz2);
258 ev->header.size = sz1 + sz2;
259 ((u64 *)((void *)ev + sz1))[-1] = 0;
264 typedef int (*inject_handler)(struct perf_tool *tool,
265 union perf_event *event,
266 struct perf_sample *sample,
268 struct machine *machine);
270 static int perf_event__repipe_sample(struct perf_tool *tool,
271 union perf_event *event,
272 struct perf_sample *sample,
274 struct machine *machine)
276 struct perf_inject *inject = container_of(tool, struct perf_inject,
279 if (evsel && evsel->handler) {
280 inject_handler f = evsel->handler;
281 return f(tool, event, sample, evsel, machine);
284 build_id__mark_dso_hit(tool, event, sample, evsel, machine);
286 if (inject->itrace_synth_opts.set && sample->aux_sample.size)
287 event = perf_inject__cut_auxtrace_sample(inject, event, sample);
289 return perf_event__repipe_synth(tool, event);
292 static int perf_event__repipe_mmap(struct perf_tool *tool,
293 union perf_event *event,
294 struct perf_sample *sample,
295 struct machine *machine)
299 err = perf_event__process_mmap(tool, event, sample, machine);
300 perf_event__repipe(tool, event, sample, machine);
306 static int perf_event__jit_repipe_mmap(struct perf_tool *tool,
307 union perf_event *event,
308 struct perf_sample *sample,
309 struct machine *machine)
311 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
316 * if jit marker, then inject jit mmaps and generate ELF images
318 ret = jit_process(inject->session, &inject->output, machine,
319 event->mmap.filename, event->mmap.pid, event->mmap.tid, &n);
323 inject->bytes_written += n;
326 return perf_event__repipe_mmap(tool, event, sample, machine);
330 static struct dso *findnew_dso(int pid, int tid, const char *filename,
331 struct dso_id *id, struct machine *machine)
333 struct thread *thread;
334 struct nsinfo *nsi = NULL;
339 thread = machine__findnew_thread(machine, pid, tid);
340 if (thread == NULL) {
341 pr_err("cannot find or create a task %d/%d.\n", tid, pid);
345 vdso = is_vdso_map(filename);
346 nsi = nsinfo__get(thread->nsinfo);
349 /* The vdso maps are always on the host and not the
350 * container. Ensure that we don't use setns to look
353 nnsi = nsinfo__copy(nsi);
356 nnsi->need_setns = false;
359 dso = machine__findnew_vdso(machine, thread);
361 dso = machine__findnew_dso_id(machine, filename, id);
373 static int perf_event__repipe_buildid_mmap(struct perf_tool *tool,
374 union perf_event *event,
375 struct perf_sample *sample,
376 struct machine *machine)
380 dso = findnew_dso(event->mmap.pid, event->mmap.tid,
381 event->mmap.filename, NULL, machine);
383 if (dso && !dso->hit) {
385 dso__inject_build_id(dso, tool, machine, sample->cpumode, 0);
389 return perf_event__repipe(tool, event, sample, machine);
392 static int perf_event__repipe_mmap2(struct perf_tool *tool,
393 union perf_event *event,
394 struct perf_sample *sample,
395 struct machine *machine)
399 err = perf_event__process_mmap2(tool, event, sample, machine);
400 perf_event__repipe(tool, event, sample, machine);
402 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
405 dso = findnew_dso(event->mmap2.pid, event->mmap2.tid,
406 event->mmap2.filename, NULL, machine);
408 /* mark it not to inject build-id */
418 static int perf_event__jit_repipe_mmap2(struct perf_tool *tool,
419 union perf_event *event,
420 struct perf_sample *sample,
421 struct machine *machine)
423 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
428 * if jit marker, then inject jit mmaps and generate ELF images
430 ret = jit_process(inject->session, &inject->output, machine,
431 event->mmap2.filename, event->mmap2.pid, event->mmap2.tid, &n);
435 inject->bytes_written += n;
438 return perf_event__repipe_mmap2(tool, event, sample, machine);
442 static int perf_event__repipe_buildid_mmap2(struct perf_tool *tool,
443 union perf_event *event,
444 struct perf_sample *sample,
445 struct machine *machine)
447 struct dso_id dso_id = {
448 .maj = event->mmap2.maj,
449 .min = event->mmap2.min,
450 .ino = event->mmap2.ino,
451 .ino_generation = event->mmap2.ino_generation,
455 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
456 /* cannot use dso_id since it'd have invalid info */
457 dso = findnew_dso(event->mmap2.pid, event->mmap2.tid,
458 event->mmap2.filename, NULL, machine);
460 /* mark it not to inject build-id */
467 dso = findnew_dso(event->mmap2.pid, event->mmap2.tid,
468 event->mmap2.filename, &dso_id, machine);
470 if (dso && !dso->hit) {
472 dso__inject_build_id(dso, tool, machine, sample->cpumode,
477 perf_event__repipe(tool, event, sample, machine);
482 static int perf_event__repipe_fork(struct perf_tool *tool,
483 union perf_event *event,
484 struct perf_sample *sample,
485 struct machine *machine)
489 err = perf_event__process_fork(tool, event, sample, machine);
490 perf_event__repipe(tool, event, sample, machine);
495 static int perf_event__repipe_comm(struct perf_tool *tool,
496 union perf_event *event,
497 struct perf_sample *sample,
498 struct machine *machine)
502 err = perf_event__process_comm(tool, event, sample, machine);
503 perf_event__repipe(tool, event, sample, machine);
508 static int perf_event__repipe_namespaces(struct perf_tool *tool,
509 union perf_event *event,
510 struct perf_sample *sample,
511 struct machine *machine)
513 int err = perf_event__process_namespaces(tool, event, sample, machine);
515 perf_event__repipe(tool, event, sample, machine);
520 static int perf_event__repipe_exit(struct perf_tool *tool,
521 union perf_event *event,
522 struct perf_sample *sample,
523 struct machine *machine)
527 err = perf_event__process_exit(tool, event, sample, machine);
528 perf_event__repipe(tool, event, sample, machine);
533 static int perf_event__repipe_tracing_data(struct perf_session *session,
534 union perf_event *event)
538 perf_event__repipe_synth(session->tool, event);
539 err = perf_event__process_tracing_data(session, event);
544 static int dso__read_build_id(struct dso *dso)
548 if (dso->has_build_id)
551 nsinfo__mountns_enter(dso->nsinfo, &nsc);
552 if (filename__read_build_id(dso->long_name, &dso->bid) > 0)
553 dso->has_build_id = true;
554 nsinfo__mountns_exit(&nsc);
556 return dso->has_build_id ? 0 : -1;
559 static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool,
560 struct machine *machine, u8 cpumode, u32 flags)
564 if (is_anon_memory(dso->long_name) || flags & MAP_HUGETLB)
566 if (is_no_dso_memory(dso->long_name))
569 if (dso__read_build_id(dso) < 0) {
570 pr_debug("no build_id found for %s\n", dso->long_name);
574 err = perf_event__synthesize_build_id(tool, dso, cpumode,
575 perf_event__repipe, machine);
577 pr_err("Can't synthesize build_id event for %s\n", dso->long_name);
584 int perf_event__inject_buildid(struct perf_tool *tool, union perf_event *event,
585 struct perf_sample *sample,
586 struct evsel *evsel __maybe_unused,
587 struct machine *machine)
589 struct addr_location al;
590 struct thread *thread;
592 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
593 if (thread == NULL) {
594 pr_err("problem processing %d event, skipping it.\n",
599 if (thread__find_map(thread, sample->cpumode, sample->ip, &al)) {
600 if (!al.map->dso->hit) {
601 al.map->dso->hit = 1;
602 dso__inject_build_id(al.map->dso, tool, machine,
603 sample->cpumode, al.map->flags);
609 perf_event__repipe(tool, event, sample, machine);
613 static int perf_inject__sched_process_exit(struct perf_tool *tool,
614 union perf_event *event __maybe_unused,
615 struct perf_sample *sample,
616 struct evsel *evsel __maybe_unused,
617 struct machine *machine __maybe_unused)
619 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
620 struct event_entry *ent;
622 list_for_each_entry(ent, &inject->samples, node) {
623 if (sample->tid == ent->tid) {
624 list_del_init(&ent->node);
633 static int perf_inject__sched_switch(struct perf_tool *tool,
634 union perf_event *event,
635 struct perf_sample *sample,
637 struct machine *machine)
639 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
640 struct event_entry *ent;
642 perf_inject__sched_process_exit(tool, event, sample, evsel, machine);
644 ent = malloc(event->header.size + sizeof(struct event_entry));
646 color_fprintf(stderr, PERF_COLOR_RED,
647 "Not enough memory to process sched switch event!");
651 ent->tid = sample->tid;
652 memcpy(&ent->event, event, event->header.size);
653 list_add(&ent->node, &inject->samples);
657 static int perf_inject__sched_stat(struct perf_tool *tool,
658 union perf_event *event __maybe_unused,
659 struct perf_sample *sample,
661 struct machine *machine)
663 struct event_entry *ent;
664 union perf_event *event_sw;
665 struct perf_sample sample_sw;
666 struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
667 u32 pid = evsel__intval(evsel, sample, "pid");
669 list_for_each_entry(ent, &inject->samples, node) {
676 event_sw = &ent->event[0];
677 evsel__parse_sample(evsel, event_sw, &sample_sw);
679 sample_sw.period = sample->period;
680 sample_sw.time = sample->time;
681 perf_event__synthesize_sample(event_sw, evsel->core.attr.sample_type,
682 evsel->core.attr.read_format, &sample_sw);
683 build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine);
684 return perf_event__repipe(tool, event_sw, &sample_sw, machine);
687 static void sig_handler(int sig __maybe_unused)
692 static int evsel__check_stype(struct evsel *evsel, u64 sample_type, const char *sample_msg)
694 struct perf_event_attr *attr = &evsel->core.attr;
695 const char *name = evsel__name(evsel);
697 if (!(attr->sample_type & sample_type)) {
698 pr_err("Samples for %s event do not have %s attribute set.",
706 static int drop_sample(struct perf_tool *tool __maybe_unused,
707 union perf_event *event __maybe_unused,
708 struct perf_sample *sample __maybe_unused,
709 struct evsel *evsel __maybe_unused,
710 struct machine *machine __maybe_unused)
715 static void strip_init(struct perf_inject *inject)
717 struct evlist *evlist = inject->session->evlist;
720 inject->tool.context_switch = perf_event__drop;
722 evlist__for_each_entry(evlist, evsel)
723 evsel->handler = drop_sample;
726 static int parse_vm_time_correlation(const struct option *opt, const char *str, int unset)
728 struct perf_inject *inject = opt->value;
735 inject->itrace_synth_opts.set = true;
736 inject->itrace_synth_opts.vm_time_correlation = true;
737 inject->in_place_update = true;
742 dry_run = skip_spaces(str);
743 if (!strncmp(dry_run, "dry-run", strlen("dry-run"))) {
744 inject->itrace_synth_opts.vm_tm_corr_dry_run = true;
745 inject->in_place_update_dry_run = true;
746 args = dry_run + strlen("dry-run");
751 inject->itrace_synth_opts.vm_tm_corr_args = strdup(args);
753 return inject->itrace_synth_opts.vm_tm_corr_args ? 0 : -ENOMEM;
756 static int __cmd_inject(struct perf_inject *inject)
759 struct perf_session *session = inject->session;
760 struct perf_data *data_out = &inject->output;
761 int fd = inject->in_place_update ? -1 : perf_data__fd(data_out);
762 u64 output_data_offset;
764 signal(SIGINT, sig_handler);
766 if (inject->build_ids || inject->sched_stat ||
767 inject->itrace_synth_opts.set || inject->build_id_all) {
768 inject->tool.mmap = perf_event__repipe_mmap;
769 inject->tool.mmap2 = perf_event__repipe_mmap2;
770 inject->tool.fork = perf_event__repipe_fork;
771 inject->tool.tracing_data = perf_event__repipe_tracing_data;
774 output_data_offset = session->header.data_offset;
776 if (inject->build_id_all) {
777 inject->tool.mmap = perf_event__repipe_buildid_mmap;
778 inject->tool.mmap2 = perf_event__repipe_buildid_mmap2;
779 } else if (inject->build_ids) {
780 inject->tool.sample = perf_event__inject_buildid;
781 } else if (inject->sched_stat) {
784 evlist__for_each_entry(session->evlist, evsel) {
785 const char *name = evsel__name(evsel);
787 if (!strcmp(name, "sched:sched_switch")) {
788 if (evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID"))
791 evsel->handler = perf_inject__sched_switch;
792 } else if (!strcmp(name, "sched:sched_process_exit"))
793 evsel->handler = perf_inject__sched_process_exit;
794 else if (!strncmp(name, "sched:sched_stat_", 17))
795 evsel->handler = perf_inject__sched_stat;
797 } else if (inject->itrace_synth_opts.vm_time_correlation) {
798 session->itrace_synth_opts = &inject->itrace_synth_opts;
799 memset(&inject->tool, 0, sizeof(inject->tool));
800 inject->tool.id_index = perf_event__process_id_index;
801 inject->tool.auxtrace_info = perf_event__process_auxtrace_info;
802 inject->tool.auxtrace = perf_event__process_auxtrace;
803 inject->tool.auxtrace_error = perf_event__process_auxtrace_error;
804 inject->tool.ordered_events = true;
805 inject->tool.ordering_requires_timestamps = true;
806 } else if (inject->itrace_synth_opts.set) {
807 session->itrace_synth_opts = &inject->itrace_synth_opts;
808 inject->itrace_synth_opts.inject = true;
809 inject->tool.comm = perf_event__repipe_comm;
810 inject->tool.namespaces = perf_event__repipe_namespaces;
811 inject->tool.exit = perf_event__repipe_exit;
812 inject->tool.id_index = perf_event__process_id_index;
813 inject->tool.auxtrace_info = perf_event__process_auxtrace_info;
814 inject->tool.auxtrace = perf_event__process_auxtrace;
815 inject->tool.aux = perf_event__drop_aux;
816 inject->tool.itrace_start = perf_event__drop_aux,
817 inject->tool.ordered_events = true;
818 inject->tool.ordering_requires_timestamps = true;
819 /* Allow space in the header for new attributes */
820 output_data_offset = 4096;
825 if (!inject->itrace_synth_opts.set)
826 auxtrace_index__free(&session->auxtrace_index);
828 if (!data_out->is_pipe && !inject->in_place_update)
829 lseek(fd, output_data_offset, SEEK_SET);
831 ret = perf_session__process_events(session);
835 if (!data_out->is_pipe && !inject->in_place_update) {
836 if (inject->build_ids)
837 perf_header__set_feat(&session->header,
840 * Keep all buildids when there is unprocessed AUX data because
841 * it is not known which ones the AUX trace hits.
843 if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) &&
844 inject->have_auxtrace && !inject->itrace_synth_opts.set)
845 dsos__hit_all(session);
847 * The AUX areas have been removed and replaced with
848 * synthesized hardware events, so clear the feature flag.
850 if (inject->itrace_synth_opts.set) {
851 perf_header__clear_feat(&session->header,
853 if (inject->itrace_synth_opts.last_branch ||
854 inject->itrace_synth_opts.add_last_branch)
855 perf_header__set_feat(&session->header,
856 HEADER_BRANCH_STACK);
858 session->header.data_offset = output_data_offset;
859 session->header.data_size = inject->bytes_written;
860 perf_session__write_header(session, session->evlist, fd, true);
866 int cmd_inject(int argc, const char **argv)
868 struct perf_inject inject = {
870 .sample = perf_event__repipe_sample,
871 .read = perf_event__repipe_sample,
872 .mmap = perf_event__repipe,
873 .mmap2 = perf_event__repipe,
874 .comm = perf_event__repipe,
875 .namespaces = perf_event__repipe,
876 .cgroup = perf_event__repipe,
877 .fork = perf_event__repipe,
878 .exit = perf_event__repipe,
879 .lost = perf_event__repipe,
880 .lost_samples = perf_event__repipe,
881 .aux = perf_event__repipe,
882 .itrace_start = perf_event__repipe,
883 .context_switch = perf_event__repipe,
884 .throttle = perf_event__repipe,
885 .unthrottle = perf_event__repipe,
886 .ksymbol = perf_event__repipe,
887 .bpf = perf_event__repipe,
888 .text_poke = perf_event__repipe,
889 .attr = perf_event__repipe_attr,
890 .event_update = perf_event__repipe_event_update,
891 .tracing_data = perf_event__repipe_op2_synth,
892 .finished_round = perf_event__repipe_oe_synth,
893 .build_id = perf_event__repipe_op2_synth,
894 .id_index = perf_event__repipe_op2_synth,
895 .auxtrace_info = perf_event__repipe_op2_synth,
896 .auxtrace_error = perf_event__repipe_op2_synth,
897 .time_conv = perf_event__repipe_op2_synth,
898 .thread_map = perf_event__repipe_op2_synth,
899 .cpu_map = perf_event__repipe_op2_synth,
900 .stat_config = perf_event__repipe_op2_synth,
901 .stat = perf_event__repipe_op2_synth,
902 .stat_round = perf_event__repipe_op2_synth,
903 .feature = perf_event__repipe_op2_synth,
904 .compressed = perf_event__repipe_op4_synth,
905 .auxtrace = perf_event__repipe_auxtrace,
908 .samples = LIST_HEAD_INIT(inject.samples),
911 .mode = PERF_DATA_MODE_WRITE,
915 struct perf_data data = {
916 .mode = PERF_DATA_MODE_READ,
921 struct option options[] = {
922 OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
923 "Inject build-ids into the output stream"),
924 OPT_BOOLEAN(0, "buildid-all", &inject.build_id_all,
925 "Inject build-ids of all DSOs into the output stream"),
926 OPT_STRING('i', "input", &inject.input_name, "file",
928 OPT_STRING('o', "output", &inject.output.path, "file",
930 OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
931 "Merge sched-stat and sched-switch for getting events "
932 "where and how long tasks slept"),
934 OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"),
936 OPT_INCR('v', "verbose", &verbose,
937 "be more verbose (show build ids, etc)"),
938 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file",
939 "kallsyms pathname"),
940 OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"),
941 OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts,
942 NULL, "opts", "Instruction Tracing options\n"
944 itrace_parse_synth_opts),
945 OPT_BOOLEAN(0, "strip", &inject.strip,
946 "strip non-synthesized events (use with --itrace)"),
947 OPT_CALLBACK_OPTARG(0, "vm-time-correlation", &inject, NULL, "opts",
948 "correlate time between VM guests and the host",
949 parse_vm_time_correlation),
952 const char * const inject_usage[] = {
953 "perf inject [<options>]",
957 set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true);
959 argc = parse_options(argc, argv, options, inject_usage, 0);
962 * Any (unrecognized) arguments left?
965 usage_with_options(inject_usage, options);
967 if (inject.strip && !inject.itrace_synth_opts.set) {
968 pr_err("--strip option requires --itrace option\n");
972 if (inject.in_place_update) {
973 if (!strcmp(inject.input_name, "-")) {
974 pr_err("Input file name required for in-place updating\n");
977 if (strcmp(inject.output.path, "-")) {
978 pr_err("Output file name must not be specified for in-place updating\n");
981 if (!data.force && !inject.in_place_update_dry_run) {
982 pr_err("The input file would be updated in place, "
983 "the --force option is required.\n");
986 if (!inject.in_place_update_dry_run)
987 data.in_place_update = true;
988 } else if (perf_data__open(&inject.output)) {
989 perror("failed to create output file");
993 data.path = inject.input_name;
994 inject.session = perf_session__new(&data, inject.output.is_pipe, &inject.tool);
995 if (IS_ERR(inject.session))
996 return PTR_ERR(inject.session);
998 if (zstd_init(&(inject.session->zstd_data), 0) < 0)
999 pr_warning("Decompression initialization failed.\n");
1001 if (inject.build_ids && !inject.build_id_all) {
1003 * to make sure the mmap records are ordered correctly
1004 * and so that the correct especially due to jitted code
1005 * mmaps. We cannot generate the buildid hit list and
1006 * inject the jit mmaps at the same time for now.
1008 inject.tool.ordered_events = true;
1009 inject.tool.ordering_requires_timestamps = true;
1012 if (inject.sched_stat) {
1013 inject.tool.ordered_events = true;
1017 if (inject.jit_mode) {
1018 inject.tool.mmap2 = perf_event__jit_repipe_mmap2;
1019 inject.tool.mmap = perf_event__jit_repipe_mmap;
1020 inject.tool.ordered_events = true;
1021 inject.tool.ordering_requires_timestamps = true;
1023 * JIT MMAP injection injects all MMAP events in one go, so it
1024 * does not obey finished_round semantics.
1026 inject.tool.finished_round = perf_event__drop_oe;
1029 ret = symbol__init(&inject.session->header.env);
1033 ret = __cmd_inject(&inject);
1036 zstd_fini(&(inject.session->zstd_data));
1037 perf_session__delete(inject.session);
1038 free(inject.itrace_synth_opts.vm_tm_corr_args);