[PATCH 14/21] perf tools: Add support to dump user data event info

Jiri Olsa
2018-01-24T11:52:22Z

Dump user data event in perf report -D, looks like this:

0x25de3e [0x58]: event: 17
.
. ... raw event: size 88 bytes
. 0000: 11 00 00 00 00 00 58 00 20 00 10 00 00 00 00 00 ......X. .......

SNIP

1214276524830 0x25de3e [0x58]: PERF_RECORD_USER_DATA 29014/29014: type: 0x100020, id 5
... FP chain: nr:5
..... 0: fffffffffffffe00
..... 1: 00007fadc451cd77
..... 2: 00007fadc4504eb1
..... 3: 00007fadc451af0f
..... 4: 0000000000000040

Link: http://lkml.kernel.org/n/tip-d3qh6jythy3cjg3askwn8fd1@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/util/session.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index cb910ea6f0a0..218b36e76d4d 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1164,6 +1164,24 @@ static void dump_read(struct perf_evsel *evsel, union perf_event *event)
printf("... id : %" PRIu64 "\n", read_event->id);
}

+static void
+dump_user_data(union perf_event *event, struct perf_sample *sample)
+{
+ u64 type;
+
+ if (!dump_trace)
+ return;
+
+ printf(" %d/%d: type: %#" PRIx64 ", id %" PRIu64 "\n",
+ sample->pid, sample->tid, event->user_data.type,
+ sample->user_data_id);
+
+ type = event->user_data.type;
+
+ if (type & PERF_SAMPLE_CALLCHAIN)
+ callchain__printf(sample);
+}
+
static struct machine *machines__find_for_cpumode(struct machines *machines,
union perf_event *event,
struct perf_sample *sample)
@@ -1286,6 +1304,7 @@ static int machines__deliver_event(struct machines *machines,
}
return perf_evlist__deliver_sample(evlist, tool, event, sample, evsel, machine);
case PERF_RECORD_USER_DATA:
+ dump_user_data(event, sample);
return tool->user_data(tool, event, sample, evsel, machine);
case PERF_RECORD_MMAP:
return tool->mmap(tool, event, sample, machine);
--
2.13.6