diff options
| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2014-08-14 02:22:36 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-08-15 10:58:35 -0300 |
| commit | 6e81c74cbf4b64620170da14844f1dc8a9a5950f (patch) | |
| tree | ce4d4d23f34959965a4cae5e48355de1b40f4063 /tools/perf/util/cloexec.c | |
| parent | 5f03cba41590b5e7db5b66d2b2aa3e146ff8a84f (diff) | |
perf util: Replace strerror with strerror_r for thread-safety
Replaces all strerror with strerror_r in util for making the perf lib
thread-safe.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naohiro Aota <naota@elisp.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20140814022236.3545.3367.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cloexec.c')
| -rw-r--r-- | tools/perf/util/cloexec.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c index 4945aa56a017..47b78b3f0325 100644 --- a/tools/perf/util/cloexec.c +++ b/tools/perf/util/cloexec.c @@ -3,6 +3,7 @@ #include "../perf.h" #include "cloexec.h" #include "asm/bug.h" +#include "debug.h" static unsigned long flag = PERF_FLAG_FD_CLOEXEC; @@ -18,6 +19,7 @@ static int perf_flag_probe(void) int err; int cpu; pid_t pid = -1; + char sbuf[STRERR_BUFSIZE]; cpu = sched_getcpu(); if (cpu < 0) @@ -42,7 +44,7 @@ static int perf_flag_probe(void) WARN_ONCE(err != EINVAL && err != EBUSY, "perf_event_open(..., PERF_FLAG_FD_CLOEXEC) failed with unexpected error %d (%s)\n", - err, strerror(err)); + err, strerror_r(err, sbuf, sizeof(sbuf))); /* not supported, confirm error related to PERF_FLAG_FD_CLOEXEC */ fd = sys_perf_event_open(&attr, pid, cpu, -1, 0); @@ -50,7 +52,7 @@ static int perf_flag_probe(void) if (WARN_ONCE(fd < 0 && err != EBUSY, "perf_event_open(..., 0) failed unexpectedly with error %d (%s)\n", - err, strerror(err))) + err, strerror_r(err, sbuf, sizeof(sbuf)))) return -1; close(fd); |