From 4650c7bed79582c74452d284e45d5b76987c0ef3 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Wed, 10 Jul 2019 11:58:01 +0300 Subject: [PATCH] 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 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);