Check the evsel->attr.inherit_stat bit and show warning message if it's
missing and -T/--threads option was given:
$ perf report -T
Error: perf.data file has no per-thread stat data.
Did you run 'perf record' with -s option?
Suggested-by: David Ahern <dsah...@gmail.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
Move error message before header info message
tools/perf/builtin-report.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 6ac2c7a01a63..343cca2a2779 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -833,6 +833,19 @@ repeat:
}
}
+ if (report.show_threads) {
+ struct perf_evsel *evsel;
+
+ evlist__for_each(session->evlist, evsel) {
+ if (!evsel->attr.inherit_stat) {
+ pr_err("Error: %s file has no per-thread stat
data.\n"
+ " Did you run 'perf record' with
-s option?\n",
+ input_name);
+ goto error;
+ }
+ }
+ }
+
if (strcmp(input_name, "-") != 0)
setup_browser(true);
else
--
2.4.0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
