[PATCH 4.2.y-ckt 180/218] perf tools: handle spaces in file names obtained from /proc/pid/maps

From: Kamal Mostafa
Date: Thu Mar 31 2016 - 16:32:39 EST

4.2.8-ckt7 -stable review patch. If anyone has any objections, please let me know.


From: =?UTF-8?q?Marcin=20=C5=9Alusarz?= <marcin.slusarz@xxxxxxxxx>

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 Ålusarz <marcin.slusarz@xxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
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 67a977e..075f9ca 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -271,7 +271,7 @@ 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,