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perf db-export: Add calls parent_id to enable creation of call trees

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The call_path can be used to find the parent symbol for a call but not
the exact parent call. To do that add parent_id to the call_return
export. This enables the creation of a call tree from the exported data.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lkml.kernel.org/n/tip-6j7tzdxo67cox6kan7k22oo6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-02-28 15:00:24 +02:00 • committed by Arnaldo Carvalho de Melo
parent 076333870c
commit f435887ec0
5 changed files with 35 additions and 13 deletions
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3
tools/perf/util/db-export.h
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@ -104,6 +104,7 @@ int db_export__sample(struct db_export *dbe, union perf_event *event,
int db_export__branch_types(struct db_export *dbe);
int db_export__call_path(struct db_export *dbe, struct call_path *cp);
int db_export__call_return(struct db_export *dbe, struct call_return *cr);
int db_export__call_return(struct db_export *dbe, struct call_return *cr,
u64 *parent_db_id);
#endif