Commit 4650c7be authored Jul 10, 2019 by Adrian Hunter Committed by Arnaldo Carvalho de Melo Jul 10, 2019

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@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190710085810.1650-13-adrian.hunter@intel.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 80859c94

tools/perf/util/db-export.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -299,6 +299,7 @@ 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);
		@@ -350,6 +351,13 @@ 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);

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