[PATCH 7/8] perf record: Use strerror_r instead of strerror

[Masami Hiramatsu]

Use strerror_r instead of strerror in error messages
for thread-safety.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>
---
 tools/perf/builtin-record.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 4db670d..87e28a4 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -161,7 +161,7 @@ try_again:
 
        if (perf_evlist__apply_filters(evlist)) {
                error("failed to set filter with %d (%s)\n", errno,
-                       strerror(errno));
+                       strerror_r(errno, msg, sizeof(msg)));
                rc = -1;
                goto out;
        }
@@ -175,7 +175,8 @@ try_again:
                               "(current value: %u)\n", opts->mmap_pages);
                        rc = -errno;
                } else {
-                       pr_err("failed to mmap with %d (%s)\n", errno, 
strerror(errno));
+                       pr_err("failed to mmap with %d (%s)\n", errno,
+                               strerror_r(errno, msg, sizeof(msg)));
                        rc = -errno;
                }
                goto out;
@@ -480,7 +481,7 @@ static int __cmd_record(struct record *rec, int argc, const 
char **argv)
        }
 
        if (forks && workload_exec_errno) {
-               char msg[512];
+               char msg[STRERR_BUFSIZE];
                const char *emsg = strerror_r(workload_exec_errno, msg, 
sizeof(msg));
                pr_err("Workload failed: %s\n", emsg);
                err = -1;

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