diff -r fd16c54261b3 -r 489c9b5090e2 hotspot/src/cpu/x86/vm/interpreterRT_x86.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/x86/vm/interpreterRT_x86.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,74 @@
+/*
+ * Copyright 1998-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * 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.
+ *
+ */
+
+// native method calls
+
+class SignatureHandlerGenerator: public NativeSignatureIterator {
+ private:
+  MacroAssembler* _masm;
+#ifdef AMD64
+#ifdef _WIN64
+  unsigned int _num_args;
+#else
+  unsigned int _num_fp_args;
+  unsigned int _num_int_args;
+#endif // _WIN64
+  int _stack_offset;
+#else
+  void move(int from_offset, int to_offset);
+  void box(int from_offset, int to_offset);
+#endif // AMD64
+
+  void pass_int();
+  void pass_long();
+  void pass_float();
+#ifdef AMD64
+  void pass_double();
+#endif // AMD64
+  void pass_object();
+
+ public:
+  // Creation
+  SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
+    _masm = new MacroAssembler(buffer);
+#ifdef AMD64
+#ifdef _WIN64
+    _num_args = (method->is_static() ? 1 : 0);
+    _stack_offset = (Argument::n_int_register_parameters_c+1)* wordSize; // don't overwrite return address
+#else
+    _num_int_args = (method->is_static() ? 1 : 0);
+    _num_fp_args = 0;
+    _stack_offset = wordSize; // don't overwrite return address
+#endif // _WIN64
+#endif // AMD64
+  }
+
+  // Code generation
+  void generate(uint64_t fingerprint);
+
+  // Code generation support
+  static Register from();
+  static Register to();
+  static Register temp();
+};