--- /dev/null	2021-01-19 17:38:25.908523431 +0000
+++ new/src/cpu/aarch64/vm/interpreterRT_aarch64.hpp	2021-01-25 19:31:46.102574914 +0000
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2013, Red Hat Inc.
+ * Copyright (c) 1998, 2010, Oracle and/or its affiliates.
+ * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef CPU_AARCH64_VM_INTERPRETERRT_AARCH64_HPP
+#define CPU_AARCH64_VM_INTERPRETERRT_AARCH64_HPP
+
+#include "memory/allocation.hpp"
+
+// native method calls
+
+class SignatureHandlerGenerator: public NativeSignatureIterator {
+ private:
+  MacroAssembler* _masm;
+  unsigned int _num_fp_args;
+  unsigned int _num_int_args;
+  int _stack_offset;
+
+  void pass_int();
+  void pass_long();
+  void pass_float();
+  void pass_double();
+  void pass_object();
+
+ public:
+  // Creation
+  SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {
+    _masm = new MacroAssembler(buffer);
+    _num_int_args = (method->is_static() ? 1 : 0);
+    _num_fp_args = 0;
+    _stack_offset = 0;
+  }
+
+  // Code generation
+  void generate(uint64_t fingerprint);
+
+  // Code generation support
+  static Register from();
+  static Register to();
+  static Register temp();
+};
+
+#endif // CPU_AARCH64_VM_INTERPRETERRT_AARCH64_HPP