[PATCH 09/25] perf stat record: Do not allow record with multiple runs mode

Jiri Olsa
2015-11-05T14:41:41Z

We currently don't support storing multiple session in perf.data,
so we can't allow -r option in stat record.

$ perf stat -e cycles -r 2 record ls
Cannot use -r option with perf stat record.

Tested-by: Kan Liang <kan.liang@intel.com>
Link: http://lkml.kernel.org/n/tip-wulio303py16c5hbbo8zrib6@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/builtin-stat.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 16f6fe2f3435..26188c20f427 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1420,6 +1420,11 @@ static int __cmd_record(int argc, const char **argv)
if (output_name)
file->path = output_name;

+ if (run_count != 1 || forever) {
+ pr_err("Cannot use -r option with perf stat record.\n");
+ return -1;
+ }
+
session = perf_session__new(file, false, NULL);
if (session == NULL) {
pr_err("Perf session creation failed.\n");
--
2.4.3