perf trace: Validate target task/user/cpu argument
Those target options are mutually exclusive so check it before setting
up target thread/cpu maps.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349413336-26936-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index dec8ced..f01fa6f 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -323,14 +323,21 @@
OPT_END()
};
int err;
+ char bf[BUFSIZ];
argc = parse_options(argc, argv, trace_options, trace_usage, 0);
if (argc)
usage_with_options(trace_usage, trace_options);
+ err = perf_target__validate(&trace.opts.target);
+ if (err) {
+ perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf));
+ printf("%s", bf);
+ return err;
+ }
+
err = perf_target__parse_uid(&trace.opts.target);
if (err) {
- char bf[BUFSIZ];
perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf));
printf("%s", bf);
return err;