From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 15/28] perf db-export: Also export thread's current comm Date: Mon, 15 Jul 2019 18:11:47 -0300 Message-ID: <20190715211200.10984-16-acme@kernel.org> References: <20190715211200.10984-1-acme@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190715211200.10984-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Adrian Hunter , Jiri Olsa , Arnaldo Carvalho de Melo List-Id: linux-perf-users.vger.kernel.org From: Adrian Hunter 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 Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190710085810.1650-13-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- 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 b1e581c13963..5057fdd7f62d 100644 --- a/tools/perf/util/db-export.c +++ b/tools/perf/util/db-export.c @@ -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); -- 2.21.0