perf evsel: Add support for synthesized sample type

For reporting purposes, an evsel sample can have a callchain synthesized
from AUX area data. Add support for keeping track of synthesized sample
types. Note, the recorded sample_type cannot be changed because it is
needed to continue to parse events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20200401101613.6201-11-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 53187c5..e64ed42 100644 (file)
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -104,6 +104,14 @@ struct evsel {
                perf_evsel__sb_cb_t     *cb;
                void                    *data;
        } side_band;
+       /*
+        * For reporting purposes, an evsel sample can have a callchain
+        * synthesized from AUX area data. Keep track of synthesized sample
+        * types here. Note, the recorded sample_type cannot be changed because
+        * it is needed to continue to parse events.
+        * See also evsel__has_callchain().
+        */
+       __u64                   synth_sample_type;
 };
 
 struct perf_missing_features {
@@ -398,7 +406,12 @@ static inline bool perf_evsel__has_branch_hw_idx(const struct evsel *evsel)
 
 static inline bool evsel__has_callchain(const struct evsel *evsel)
 {
-       return (evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN) != 0;
+       /*
+        * For reporting purposes, an evsel sample can have a recorded callchain
+        * or a callchain synthesized from AUX area data.
+        */
+       return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN ||
+              evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN;
 }
 
 struct perf_env *perf_evsel__env(struct evsel *evsel);