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author | Namhyung Kim <namhyung@kernel.org> | 2013-11-26 08:54:26 (GMT) |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-11-27 17:58:38 (GMT) |
commit | ba1ddf42f3c3af111d3adee277534f73c1ef6a9b (patch) | |
tree | 67899014c8dcb48278d0f1578f71b2ca439bf0b2 /tools/perf/builtin-script.c | |
parent | ad7ebb9a48f59bad2714b64725653a73d78b686e (diff) | |
download | linux-ba1ddf42f3c3af111d3adee277534f73c1ef6a9b.tar.xz |
perf script: Print mmap[2] events also
If --show-mmap-events option is given, also print internal MMAP and
MMAP2 events. It would be helpful for debugging.
$ perf script --show-mmap-events
...
sleep 9486 [009] 3350640.335531: PERF_RECORD_MMAP 9486/9486: [0x400000(0x6000) @ 0]: x /usr/bin/sleep
sleep 9486 [009] 3350640.335542: PERF_RECORD_MMAP 9486/9486: [0x3153a00000(0x223000) @ 0]: x /usr/lib64/ld-2.17.so
sleep 9486 [009] 3350640.335553: PERF_RECORD_MMAP 9486/9486: [0x7fff8b5fe000(0x2000) @ 0x7fff8b5fe000]: x [vdso]
sleep 9486 [009] 3350640.335643: PERF_RECORD_MMAP 9486/9486: [0x3153e00000(0x3c0000) @ 0]: x /usr/lib64/libc-2.17.so
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Suggested-by: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1385456066-26592-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-script.c')
-rw-r--r-- | tools/perf/builtin-script.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index e2b9aff..952dce9 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -573,6 +573,7 @@ struct perf_script { struct perf_tool tool; struct perf_session *session; bool show_task_events; + bool show_mmap_events; }; static int process_attr(struct perf_tool *tool, union perf_event *event, @@ -698,6 +699,68 @@ static int process_exit_event(struct perf_tool *tool, return 0; } +static int process_mmap_event(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine) +{ + struct thread *thread; + struct perf_script *script = container_of(tool, struct perf_script, tool); + struct perf_session *session = script->session; + struct perf_evsel *evsel = perf_evlist__first(session->evlist); + + if (perf_event__process_mmap(tool, event, sample, machine) < 0) + return -1; + + thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid); + if (thread == NULL) { + pr_debug("problem processing MMAP event, skipping it.\n"); + return -1; + } + + if (!evsel->attr.sample_id_all) { + sample->cpu = 0; + sample->time = 0; + sample->tid = event->mmap.tid; + sample->pid = event->mmap.pid; + } + print_sample_start(sample, thread, evsel); + perf_event__fprintf(event, stdout); + + return 0; +} + +static int process_mmap2_event(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine) +{ + struct thread *thread; + struct perf_script *script = container_of(tool, struct perf_script, tool); + struct perf_session *session = script->session; + struct perf_evsel *evsel = perf_evlist__first(session->evlist); + + if (perf_event__process_mmap2(tool, event, sample, machine) < 0) + return -1; + + thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid); + if (thread == NULL) { + pr_debug("problem processing MMAP2 event, skipping it.\n"); + return -1; + } + + if (!evsel->attr.sample_id_all) { + sample->cpu = 0; + sample->time = 0; + sample->tid = event->mmap2.tid; + sample->pid = event->mmap2.pid; + } + print_sample_start(sample, thread, evsel); + perf_event__fprintf(event, stdout); + + return 0; +} + static void sig_handler(int sig __maybe_unused) { session_done = 1; @@ -715,6 +778,10 @@ static int __cmd_script(struct perf_script *script) script->tool.fork = process_fork_event; script->tool.exit = process_exit_event; } + if (script->show_mmap_events) { + script->tool.mmap = process_mmap_event; + script->tool.mmap2 = process_mmap2_event; + } ret = perf_session__process_events(script->session, &script->tool); @@ -1480,6 +1547,8 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) "Show the path of [kernel.kallsyms]"), OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events, "Show the fork/comm/exit events"), + OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, + "Show the mmap events"), OPT_END() }; const char * const script_usage[] = { |