--- a/hotspot/src/share/vm/runtime/os.hpp	Wed Sep 10 23:14:13 2014 +0000
+++ b/hotspot/src/share/vm/runtime/os.hpp	Fri Sep 12 09:17:58 2014 +0200
@@ -771,6 +771,9 @@
   // Hook for os specific jvm options that we don't want to abort on seeing
   static bool obsolete_option(const JavaVMOption *option);
 
+  // Amount beyond the callee frame size that we bang the stack.
+  static int extra_bang_size_in_bytes();
+
   // Extensions
 #include "runtime/os_ext.hpp"