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perf util: Replace strerror with strerror_r for thread-safety

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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>
This commit is contained in:
Masami Hiramatsu 2014-08-14 02:22:36 +00:00 • committed by Arnaldo Carvalho de Melo
parent 5f03cba415
commit 6e81c74cbf
8 changed files with 36 additions and 14 deletions
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5
tools/perf/util/util.c
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@ -456,6 +456,7 @@ int filename__read_str(const char *filename, char **buf, size_t *sizep)
size_t size = 0, alloc_size = 0;
void *bf = NULL, *nbf;
int fd, n, err = 0;
char sbuf[STRERR_BUFSIZE];
fd = open(filename, O_RDONLY);
if (fd < 0)
@ -476,8 +477,8 @@ int filename__read_str(const char *filename, char **buf, size_t *sizep)
n = read(fd, bf + size, alloc_size - size);
if (n < 0) {
if (size) {
pr_warning("read failed %d: %s\n",
errno, strerror(errno));
pr_warning("read failed %d: %s\n", errno,
strerror_r(errno, sbuf, sizeof(sbuf)));
err = 0;
} else
err = -errno;