linux-kernel - [PATCH 01/25] perf trace: Validate target task/user/cpu argument

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Message-Id: <1349735570-19339-2-git-send-email-acme@infradead.org>
Date:	Mon,  8 Oct 2012 19:32:26 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Namhyung Kim <namhyung.kim@....com>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 01/25] perf trace: Validate target task/user/cpu argument

From: Namhyung Kim <namhyung.kim@....com>

Those target options are mutually exclusive so check it before setting
up target thread/cpu maps.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1349413336-26936-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-trace.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

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 @@ 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;
-- 
1.7.9.2.358.g22243

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