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>

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 79d3eb9..49676c1 100644 (file)
--- 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 a1bc0c5..710deec 100644 (file)
--- 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,