perf probe: Make error messages thread-safe
To make error messages thread-safe, this replaces strerror with
strerror_r for warnings, and just shows the return value instead of
using strerror for debug messages.
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/20140814022234.3545.22199.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index c63fa29..347729e 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -290,8 +290,11 @@
static void pr_err_with_code(const char *msg, int err)
{
+ char sbuf[STRERR_BUFSIZE];
+
pr_err("%s", msg);
- pr_debug(" Reason: %s (Code: %d)", strerror(-err), err);
+ pr_debug(" Reason: %s (Code: %d)",
+ strerror_r(-err, sbuf, sizeof(sbuf)), err);
pr_err("\n");
}