--- /dev/null	2009-10-08 09:48:12.966002103 +0100
+++ new/hotspot/src/cpu/zero/vm/stubRoutines_zero.hpp	2009-10-08 17:31:25.000000000 +0100
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2003-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2007, 2008, 2009 Red Hat, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+  // This file holds the platform specific parts of the StubRoutines
+  // definition. See stubRoutines.hpp for a description on how to
+  // extend it.
+
+ public:
+  static address call_stub_return_pc() {
+    return (address) -1;
+  }
+
+  static bool returns_to_call_stub(address return_pc) {
+    return return_pc == call_stub_return_pc();
+  }
+
+  enum platform_dependent_constants {
+    code_size1 = 0,      // The assembler will fail with a guarantee
+    code_size2 = 0       // if these are too small.  Simply increase
+  };                     // them if that happens.
+
+#ifdef IA32
+  class x86 {
+    friend class VMStructs;
+
+   private:
+    static address _call_stub_compiled_return;
+  };
+#endif // IA32