linux-kernel - [PATCH 3.16 016/217] perf tools: handle spaces in file names obtained from /proc/pid/maps

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Message-ID: <lsq.1461711741.795928455@decadent.org.uk>
Date:	Wed, 27 Apr 2016 01:02:21 +0200
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org, "Namhyung Kim" <namhyung@...nel.org>,
	"Arnaldo Carvalho de Melo" <acme@...hat.com>,
	"Marcin Ślusarz" <marcin.slusarz@...il.com>
Subject: [PATCH 3.16 016/217] perf tools: handle spaces in file names
 obtained from /proc/pid/maps

3.16.35-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Marcin Ślusarz <marcin.slusarz@...il.com>

commit 89fee59b504f86925894fcc9ba79d5c933842f93 upstream.

Steam frequently puts game binaries in folders with spaces.

Note: "(deleted)" markers are now treated as part of the file name.

Signed-off-by: Marcin Ślusarz <marcin.slusarz@...il.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Fixes: 6064803313ba ("perf tools: Use sscanf for parsing /proc/pid/maps")
Link: http://lkml.kernel.org/r/20160119190303.GA17579@marcin-Inspiron-7720
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 tools/perf/util/event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -197,7 +197,7 @@ int perf_event__synthesize_mmap_events(s
 		strcpy(execname, "");
 
 		/* 00400000-0040c000 r-xp 00000000 fd:01 41038  /bin/cat */
-		n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %s\n",
+		n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %[^\n]\n",
 		       &event->mmap2.start, &event->mmap2.len, prot,
 		       &event->mmap2.pgoff, &event->mmap2.maj,
 		       &event->mmap2.min,