perf tools: handle spaces in file names obtained from /proc/pid/maps

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@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.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@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 8b10621b415c684564a6dd5af130ebc9d3ab33c7..956187bf1a8532454dec1c2aa8fa4c4a9a827928 100644 (file)
--- 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,