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perf trace: Validate target task/user/cpu argument

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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>
This commit is contained in:
Namhyung Kim 2012-10-05 14:02:13 +09:00 committed by Arnaldo Carvalho de Melo
parent 139c081590
commit 32caf0d1fe
1 changed files with 8 additions and 1 deletions
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9
tools/perf/builtin-trace.c
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@ -323,14 +323,21 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
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;