[PATCH 6/6] perf utils: readlink /proc/self/exe to find the perf binary

[Tommi Rantala]

Signed-off-by: Tommi Rantala <tommi.t.rant...@nokia.com>
---
 tools/perf/util/header.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index ab10e9d..c6243af 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -370,15 +370,11 @@ static int write_cmdline(int fd, struct perf_header *h 
__maybe_unused,
                         struct perf_evlist *evlist __maybe_unused)
 {
        char buf[MAXPATHLEN];
-       char proc[32];
        u32 n;
        int i, ret;
 
-       /*
-        * actual atual path to perf binary
-        */
-       sprintf(proc, "/proc/%d/exe", getpid());
-       ret = readlink(proc, buf, sizeof(buf)-1);
+       /* actual path to perf binary */
+       ret = readlink("/proc/self/exe", buf, sizeof(buf)-1);
        if (ret <= 0)
                return -1;
 
-- 
2.9.3