diff -r 6725044c5725 -r e16282db4946 src/cpu/zero/vm/cppInterpreter_zero.cpp
--- a/src/cpu/zero/vm/cppInterpreter_zero.cpp	Mon Aug 19 09:33:29 2013 +0200
+++ b/src/cpu/zero/vm/cppInterpreter_zero.cpp	Tue Aug 20 10:57:50 2013 -0700
@@ -1008,6 +1008,7 @@
 
 address CppInterpreter::return_entry(TosState state, int length) {
   ShouldNotCallThis();
+  return NULL;
 }
 
 address CppInterpreter::deopt_entry(TosState state, int length) {