[PATCH 24/57] perf tools: Add perf_event__fprintf_attr_update function

[Jiri Olsa <jolsa@kernel.org>]

To display attr_update event for raw dump.

Link: http://lkml.kernel.org/n/tip-ch2nor544486ppvwscqg55ik@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/header.c | 38 ++++++++++++++++++++++++++++++++++++++
 tools/perf/util/header.h |  1 +
 2 files changed, 39 insertions(+)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 83c3bbd05b80..ad844f37b662 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2793,6 +2793,44 @@ perf_event__synthesize_attr_update_cpus(struct perf_tool *tool,
 	return err;
 }
 
+size_t perf_event__fprintf_attr_update(union perf_event *event, FILE *fp)
+{
+	struct attr_update_event *ev = &event->attr_update;
+	struct attr_update_event_scale *ev_scale;
+	struct attr_update_event_cpus *ev_cpus;
+	struct cpu_map *map;
+	size_t ret;
+
+	ret = fprintf(fp, "\n... id:    %" PRIu64 "\n", ev->id);
+
+	switch (ev->type) {
+	case PERF_ATTR_UPDATE__SCALE:
+		ev_scale = (struct attr_update_event_scale *) ev->data;
+		ret += fprintf(fp, "... scale: %f\n", ev_scale->scale);
+		break;
+	case PERF_ATTR_UPDATE__UNIT:
+		ret += fprintf(fp, "... unit:  %s\n", ev->data);
+		break;
+	case PERF_ATTR_UPDATE__NAME:
+		ret += fprintf(fp, "... name:  %s\n", ev->data);
+		break;
+	case PERF_ATTR_UPDATE__CPUS:
+		ev_cpus = (struct attr_update_event_cpus *) ev->data;
+		ret += fprintf(fp, "... ");
+
+		map = cpu_map__new_data(&ev_cpus->cpus);
+		if (map)
+			ret += cpu_map__fprintf(map, fp);
+		else
+			ret += fprintf(fp, "failed to get cpus\n");
+		break;
+	default:
+		ret += fprintf(fp, "... unknown type\n");
+		break;
+	}
+
+	return ret;
+}
 
 int perf_event__synthesize_attrs(struct perf_tool *tool,
 				   struct perf_session *session,
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index db673b0cef41..97384e24907c 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -122,6 +122,7 @@ int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
 int perf_event__process_attr_update(struct perf_tool *tool __maybe_unused,
 				    union perf_event *event,
 				    struct perf_evlist **pevlist);
+size_t perf_event__fprintf_attr_update(union perf_event *event, FILE *fp);
 
 int perf_event__synthesize_tracing_data(struct perf_tool *tool,
 					int fd, struct perf_evlist *evlist,
-- 
2.4.3