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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-04-18 14:24:16 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-01-26 15:43:00 +0100 |
| commit | a7619aef6dca913d830675dd914ca6fe7241a730 (patch) | |
| tree | 2490aac9e21e07197f2ce79a2be45d6b33148f5d /tools/perf/util/header.c | |
| parent | perf util: Save pid-cmdline mapping into tracing header (diff) | |
| download | linux-a7619aef6dca913d830675dd914ca6fe7241a730.tar.xz linux-a7619aef6dca913d830675dd914ca6fe7241a730.zip | |
perf util: Add more debug message on failure path
It's helpful for debugging on tracing features.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jeremy Eder <jeder@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>,
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/n/tip-rjysr9ljiesymgk4qblteaty@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.c')
| -rw-r--r-- | tools/perf/util/header.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 00fd8a8850d3..c567d9f0aa92 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2803,8 +2803,10 @@ static int perf_evsel__prepare_tracepoint_event(struct perf_evsel *evsel, } event = pevent_find_event(pevent, evsel->attr.config); - if (event == NULL) + if (event == NULL) { + pr_debug("cannot find event format for %d\n", (int)evsel->attr.config); return -1; + } if (!evsel->name) { snprintf(bf, sizeof(bf), "%s:%s", event->system, event->name); |