perf tools: Add support for parsing PERF_SAMPLE_READ sample type
Adding support to parse out the PERF_SAMPLE_READ sample bits. The code
contains both single and group format specification.
This code parse out and prepare PERF_SAMPLE_READ data into the
perf_sample struct. It will be used for group leader sampling feature
comming in shortly.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-0tgdoln5rwk3wocshb442cl3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 272c9cf..f082921 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -71,6 +71,11 @@
goto out_close;
}
+ if (!perf_evlist__valid_read_format(self->evlist)) {
+ pr_err("non matching read_format");
+ goto out_close;
+ }
+
self->size = input_stat.st_size;
return 0;
@@ -749,6 +754,36 @@
printf("%" PRIu64 " ", sample->time);
}
+static void sample_read__printf(struct perf_sample *sample, u64 read_format)
+{
+ printf("... sample_read:\n");
+
+ if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
+ printf("...... time enabled %016" PRIx64 "\n",
+ sample->read.time_enabled);
+
+ if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
+ printf("...... time running %016" PRIx64 "\n",
+ sample->read.time_running);
+
+ if (read_format & PERF_FORMAT_GROUP) {
+ u64 i;
+
+ printf(".... group nr %" PRIu64 "\n", sample->read.group.nr);
+
+ for (i = 0; i < sample->read.group.nr; i++) {
+ struct sample_read_value *value;
+
+ value = &sample->read.group.values[i];
+ printf("..... id %016" PRIx64
+ ", value %016" PRIx64 "\n",
+ value->id, value->value);
+ }
+ } else
+ printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n",
+ sample->read.one.id, sample->read.one.value);
+}
+
static void dump_event(struct perf_session *session, union perf_event *event,
u64 file_offset, struct perf_sample *sample)
{
@@ -798,6 +833,9 @@
if (sample_type & PERF_SAMPLE_DATA_SRC)
printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
+
+ if (sample_type & PERF_SAMPLE_READ)
+ sample_read__printf(sample, evsel->attr.read_format);
}
static struct machine *