Re: [PATCH] perf tools: handle spaces in file names obtained from /proc/pid/maps

From: Namhyung Kim
Date: Sat Jan 09 2016 - 04:43:06 EST


> From: Marcin Ålusarz <marcin.slusarz@xxxxxxxxx>
> 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 Ålusarz <marcin.slusarz@xxxxxxxxx>
> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Thanks,
Namhyung


> ---
> 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
>