[PATCH 14/26] perf tools: Add mmap3 events to --show-mmap-events option

Jiri Olsa
2020-09-13T21:04:58Z

Displaying mmap3 events for --show-mmap-events option,
the build id is displayed within <> braces:

$ perf script --show-mmap-events
kill 12148 13893.519014: PERF_RECORD_MMAP3 12148/12148: <43938d0803c5e3130ea679cd569aaf44b98d9ae8> [0x560e7d7f..
kill 12148 13893.519420: PERF_RECORD_MMAP3 12148/12148: <1805c738c8f3ec0f47b7ea09080c28f34d18a82b> [0x7f9e7dfc..

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-script.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index d839983cfb88..9c09581d5cb0 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2342,6 +2342,38 @@ static int process_mmap2_event(struct perf_tool *tool,
event->mmap2.tid);
}

+static int process_mmap3_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 evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+
+ if (perf_event__process_mmap3(tool, event, sample, machine) < 0)
+ return -1;
+
+ thread = machine__findnew_thread(machine, event->mmap3.pid, event->mmap3.tid);
+ if (thread == NULL) {
+ pr_debug("problem processing MMAP2 event, skipping it.\n");
+ return -1;
+ }
+
+ if (!evsel->core.attr.sample_id_all) {
+ sample->cpu = 0;
+ sample->time = 0;
+ sample->tid = event->mmap3.tid;
+ sample->pid = event->mmap3.pid;
+ }
+ perf_sample__fprintf_start(script, sample, thread, evsel,
+ PERF_RECORD_MMAP3, stdout);
+ perf_event__fprintf(event, machine, stdout);
+ thread__put(thread);
+ return 0;
+}
+
static int process_switch_event(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
@@ -2498,6 +2530,7 @@ static int __cmd_script(struct perf_script *script)
if (script->show_mmap_events) {
script->tool.mmap = process_mmap_event;
script->tool.mmap2 = process_mmap2_event;
+ script->tool.mmap3 = process_mmap3_event;
}
if (script->show_switch_events || (scripting_ops && scripting_ops->process_switch))
script->tool.context_switch = process_switch_event;
--
2.26.2