linux-kernel - [PATCH 2/2] perf: Handle perf-versionnumber

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Date:	Thu, 18 Nov 2010 11:51:01 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	acme@...hat.com
Cc:	mingo@...e.hu, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 2/2] perf: Handle perf-versionnumber

From: Andi Kleen <ak@...ux.intel.com>

Sometimes it's useful to have multiple perfs with version number
around. This was defeated by the internal command code. Don't
try to handle a number as a internal command.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 tools/perf/perf.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index cdd6c03..c14c0fa 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -444,8 +444,11 @@ int main(int argc, const char **argv)
 	 *
 	 * So we just directly call the internal command handler, and
 	 * die if that one cannot handle it.
+ 	 *
+ 	 * If there is a number after the - don't do this. Assume it's
+	 * a perf-VERSIONNUMBER
 	 */
-	if (!prefixcmp(cmd, "perf-")) {
+	if (!prefixcmp(cmd, "perf-") && !isdigit(cmd[5])) {
 		cmd += 5;
 		argv[0] = cmd;
 		handle_internal_command(argc, argv);
-- 
1.7.1

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