diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2019-02-28 15:00:24 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-03-01 14:50:47 -0300 |
| commit | f435887ec0c941b97301bd6ed1f3e4b5200df409 (patch) | |
| tree | e9a1be1b4803aa39ae58d93b000b9e773bbd35ef /tools/perf/util/db-export.c | |
| parent | 076333870c2f5bdd9b6d31e7ca1909cf0c84cbfa (diff) | |
perf db-export: Add calls parent_id to enable creation of call trees
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>
Diffstat (limited to 'tools/perf/util/db-export.c')
| -rw-r--r-- | tools/perf/util/db-export.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c index de9b4769d06c..d7315a00c731 100644 --- a/tools/perf/util/db-export.c +++ b/tools/perf/util/db-export.c @@ -510,18 +510,23 @@ int db_export__call_path(struct db_export *dbe, struct call_path *cp) return 0; } -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) { int err; - if (cr->db_id) - return 0; - err = db_export__call_path(dbe, cr->cp); if (err) return err; - cr->db_id = ++dbe->call_return_last_db_id; + if (!cr->db_id) + cr->db_id = ++dbe->call_return_last_db_id; + + if (parent_db_id) { + if (!*parent_db_id) + *parent_db_id = ++dbe->call_return_last_db_id; + cr->parent_db_id = *parent_db_id; + } if (dbe->export_call_return) return dbe->export_call_return(dbe, cr); |