linux-kernel - [tip:perf/urgent] perf tools: Fix up /proc/PID/maps parsing

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Date:	Mon, 28 Oct 2013 08:03:36 -0700
From:	tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, eranian@...gle.com, paulus@...ba.org,
	acme@...hat.com, hpa@...or.com, mingo@...nel.org,
	peterz@...radead.org, efault@....de, jolsa@...hat.com,
	fweisbec@...il.com, markus@...ppelsdorf.de,
	adrian.hunter@...el.com, dsahern@...il.com, tglx@...utronix.de
Subject: [tip:perf/urgent] perf tools: Fix up /proc/PID/maps parsing

Commit-ID:  2fd869f08aec5a8e4cbf01bc3fa345c4e53342d7
Gitweb:     http://git.kernel.org/tip/2fd869f08aec5a8e4cbf01bc3fa345c4e53342d7
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Mon, 28 Oct 2013 09:38:12 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 28 Oct 2013 09:38:12 -0300

perf tools: Fix up /proc/PID/maps parsing

When introducing support for MMAP2 we considered more parts of each map
representation in /proc/PID/maps, and when disabling it we forgot to
reduce the number of expected parsed/assigned entries in the sscanf
call, fix it to expect the right number of desired fields, 5.

Reported-by: Markus Trippelsdorf <markus@...ppelsdorf.de>
Based-on-a-patch-by: Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-vrbo1wik997ahjzl1chm3bdm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 63df031..49096ea 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -213,7 +213,7 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 		       &event->mmap.pgoff,
 		       execname);
 
-		if (n != 8)
+		if (n != 5)
 			continue;
 
 		if (prot[2] != 'x')
--
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