--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/wrappers/sanitizer_coverage_libcdep_new.C	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,22 @@
+namespace __sanitizer {
+
+enum FileAccessMode {
+  RdOnly,
+  WrOnly,
+  RdWr
+};
+
+int OpenFile(const char *filename, int mode,
+	     int *errno_p);
+}
+
+using namespace __sanitizer;
+
+namespace __sancov {
+
+static int OpenFile(const char* path) {
+  int err;
+  int fd = OpenFile(path, WrOnly, &err);
+  return fd;
+}
+}