linux-kernel - [PATCH v2] perf tools: handle spaces in file names obtained from /proc/pid/maps

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Message-ID: <20160119190303.GA17579@marcin-Inspiron-7720>
Date:	Tue, 19 Jan 2016 20:03:03 +0100
From:	Marcin Ślusarz <marcin.slusarz@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung@...nel.org>
Subject: [PATCH v2] perf tools: handle spaces in file names obtained from
 /proc/pid/maps

Steam frequently puts game binaries in folders with spaces.

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

It probably worked before 6064803313bad9ae4cae233a9d56678adb2b6e7c
("perf tools: Use sscanf for parsing /proc/pid/maps").

Signed-off-by: Marcin Ślusarz <marcin.slusarz@...il.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Cc: 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 8b10621..956187b 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -274,7 +274,7 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 		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,
-- 
2.1.4