--- a/hotspot/src/share/vm/runtime/os.hpp	Thu Sep 11 17:54:22 2014 -0700
+++ b/hotspot/src/share/vm/runtime/os.hpp	Fri Sep 12 14:05:28 2014 -0700
@@ -772,6 +772,9 @@
   // 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"