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Message-Id: <20190710085810.1650-13-adrian.hunter@intel.com>
Date: Wed, 10 Jul 2019 11:58:01 +0300
From: Adrian Hunter <adrian.hunter@...el.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 12/21] perf db-export: Also export thread's current comm
Currently, the initial comm of the main thread is exported. Export also a
thread's current comm. That better supports the tracing of multi-threaded
applications that set different comms for different threads to make it
easier to distinguish them.
Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
tools/perf/util/db-export.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c
index 305adead3a1d..2220a60ad29e 100644
--- a/tools/perf/util/db-export.c
+++ b/tools/perf/util/db-export.c
@@ -298,6 +298,7 @@ int db_export__sample(struct db_export *dbe, union perf_event *event,
};
struct thread *main_thread;
struct comm *comm = NULL;
+ struct comm *curr_comm;
int err;
err = db_export__evsel(dbe, evsel);
@@ -349,6 +350,13 @@ int db_export__sample(struct db_export *dbe, union perf_event *event,
}
}
+ curr_comm = thread__comm(thread);
+ if (curr_comm) {
+ err = db_export__comm(dbe, curr_comm, thread);
+ if (err)
+ goto out_put;
+ }
+
es.db_id = ++dbe->sample_last_db_id;
err = db_ids_from_al(dbe, al, &es.dso_db_id, &es.sym_db_id, &es.offset);
--
2.17.1
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