--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compiler-rt/test/tsan/strerror_r.cpp	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,32 @@
+// RUN: %clangxx_tsan -O1 -DTEST_ERROR=ERANGE %s -o %t && %run %t 2>&1 | FileCheck --check-prefixes=CHECK,CHECK-SYS %s
+// RUN: %clangxx_tsan -O1 -DTEST_ERROR=-1 %s -o %t && not %run %t 2>&1 | FileCheck --check-prefixes=CHECK,CHECK-USER %s
+// This test is for GNU specific version of strerror_r()
+// UNSUPPORTED: darwin, netbsd, freebsd
+
+#include "test.h"
+
+#include <errno.h>
+#include <pthread.h>
+#include <string.h>
+
+char buffer[1000];
+
+void *Thread(void *p) {
+  barrier_wait(&barrier);
+  return strerror_r(TEST_ERROR, buffer, sizeof(buffer));
+}
+
+int main() {
+  barrier_init(&barrier, 2);
+  pthread_t th;
+  pthread_create(&th, 0, Thread, 0);
+  strerror_r(TEST_ERROR, buffer, sizeof(buffer));
+  barrier_wait(&barrier);
+  pthread_join(th, 0);
+  fprintf(stderr, "DONE\n");
+}
+
+// CHECK-USER: WARNING: ThreadSanitizer: data race
+// CHECK-SYS-NOT: WARNING: ThreadSanitizer: data race
+
+// CHECK: DONE