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Subject[tip:perf/core] perf tools: Add perf_event__fprintf_event_update function
Commit-ID:  c853f9394b7bc189632673cac802bdbf6537463b
Gitweb: http://git.kernel.org/tip/c853f9394b7bc189632673cac802bdbf6537463b
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Sun, 25 Oct 2015 15:51:41 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 17 Dec 2015 15:14:36 -0300

perf tools: Add perf_event__fprintf_event_update function

To display a 'event update' event for raw dump.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-26-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
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 79d3eb9..49676c1 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2793,6 +2793,44 @@ perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
return err;
}

+size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp)
+{
+ struct event_update_event *ev = &event->event_update;
+ struct event_update_event_scale *ev_scale;
+ struct event_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_EVENT_UPDATE__SCALE:
+ ev_scale = (struct event_update_event_scale *) ev->data;
+ ret += fprintf(fp, "... scale: %f\n", ev_scale->scale);
+ break;
+ case PERF_EVENT_UPDATE__UNIT:
+ ret += fprintf(fp, "... unit: %s\n", ev->data);
+ break;
+ case PERF_EVENT_UPDATE__NAME:
+ ret += fprintf(fp, "... name: %s\n", ev->data);
+ break;
+ case PERF_EVENT_UPDATE__CPUS:
+ ev_cpus = (struct event_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 a1bc0c57..710deec 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_event_update(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_evlist **pevlist);
+size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);

int perf_event__synthesize_tracing_data(struct perf_tool *tool,
int fd, struct perf_evlist *evlist,

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