Start to fusl toolchain

fusl/test/empty_main.c

Index: fusl/test/empty_main.c
diff --git a/benchmarks/startup/noop.cc b/fusl/test/empty_main.c
similarity index 60%
copy from benchmarks/startup/noop.cc
copy to fusl/test/empty_main.c
index 60fe155e732b65a3a0bff1b38371b8f7b676197a..f594cee06a8a9038553447bf378e0b87e5aad703 100644
--- a/benchmarks/startup/noop.cc
+++ b/fusl/test/empty_main.c
@@ -1,7 +1,7 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-int main() {
+int main(void) {
   return 0;
 }