perf buildid-cache: Use strerror_r instead of strerror

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

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/20140814022249.3545.53211.stgit@kbuild-fedora.novalocal
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index ac5838e0b1bdc01e1481ba7ff11c5e454c7a96ad..70385756da63f12bcfafe362bc55b1f157e8feae 100644 (file)
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -291,6 +291,7 @@ int cmd_buildid_cache(int argc, const char **argv,
                   *missing_filename = NULL,
                   *update_name_list_str = NULL,
                   *kcore_filename;
+       char sbuf[STRERR_BUFSIZE];
 
        struct perf_data_file file = {
                .mode  = PERF_DATA_MODE_READ,
@@ -347,7 +348,7 @@ int cmd_buildid_cache(int argc, const char **argv,
                                                continue;
                                        }
                                        pr_warning("Couldn't add %s: %s\n",
-                                                  pos->s, strerror(errno));
+                                                  pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
                                }
 
                        strlist__delete(list);
@@ -365,7 +366,7 @@ int cmd_buildid_cache(int argc, const char **argv,
                                                continue;
                                        }
                                        pr_warning("Couldn't remove %s: %s\n",
-                                                  pos->s, strerror(errno));
+                                                  pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
                                }
 
                        strlist__delete(list);
@@ -386,7 +387,7 @@ int cmd_buildid_cache(int argc, const char **argv,
                                                continue;
                                        }
                                        pr_warning("Couldn't update %s: %s\n",
-                                                  pos->s, strerror(errno));
+                                                  pos->s, strerror_r(errno, sbuf, sizeof(sbuf)));
                                }
 
                        strlist__delete(list);