perf record: Synthesize unit/scale/... in event update
Move the code to synthesize event updates for scale/unit/cpus to a
common utility file, and use it both from stat and record.
This allows to access scale and other extra qualifiers from perf script.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20171117214300.32746-2-andi@firstfloor.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 7c0e9d5..5890e08 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -3258,6 +3258,74 @@ int perf_event__synthesize_attrs(struct perf_tool *tool,
return err;
}
+static bool has_unit(struct perf_evsel *counter)
+{
+ return counter->unit && *counter->unit;
+}
+
+static bool has_scale(struct perf_evsel *counter)
+{
+ return counter->scale != 1;
+}
+
+int perf_event__synthesize_extra_attr(struct perf_tool *tool,
+ struct perf_evlist *evsel_list,
+ perf_event__handler_t process,
+ bool is_pipe)
+{
+ struct perf_evsel *counter;
+ int err;
+
+ /*
+ * Synthesize other events stuff not carried within
+ * attr event - unit, scale, name
+ */
+ evlist__for_each_entry(evsel_list, counter) {
+ if (!counter->supported)
+ continue;
+
+ /*
+ * Synthesize unit and scale only if it's defined.
+ */
+ if (has_unit(counter)) {
+ err = perf_event__synthesize_event_update_unit(tool, counter, process);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel unit.\n");
+ return err;
+ }
+ }
+
+ if (has_scale(counter)) {
+ err = perf_event__synthesize_event_update_scale(tool, counter, process);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel counter.\n");
+ return err;
+ }
+ }
+
+ if (counter->own_cpus) {
+ err = perf_event__synthesize_event_update_cpus(tool, counter, process);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel cpus.\n");
+ return err;
+ }
+ }
+
+ /*
+ * Name is needed only for pipe output,
+ * perf.data carries event names.
+ */
+ if (is_pipe) {
+ err = perf_event__synthesize_event_update_name(tool, counter, process);
+ if (err < 0) {
+ pr_err("Couldn't synthesize evsel name.\n");
+ return err;
+ }
+ }
+ }
+ return 0;
+}
+
int perf_event__process_attr(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_evlist **pevlist)