--- /dev/null	2017-09-13 16:57:49.748706170 -0400
+++ new/src/cpu/aarch64/vm/gc/shared/modRefBSCodeGen_aarch64.cpp	2017-09-21 10:12:45.604371083 -0400
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2017, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "asm/macroAssembler.inline.hpp"
+#include "gc/shared/modRefBSCodeGen.hpp"
+
+#define __ masm->
+
+void ModRefBSCodeGen::arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
+                                         Register addr, Register count, RegSet saved_regs) {
+
+  if (is_oop) {
+    gen_write_ref_array_pre_barrier(masm, decorators, addr, count, saved_regs);
+  }
+}
+
+void ModRefBSCodeGen::arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
+                                         Register start, Register end, Register tmp,
+                                         RegSet saved_regs) {
+  if (is_oop) {
+    gen_write_ref_array_post_barrier(masm, decorators, start, end, tmp, saved_regs);
+  }
+}
+
+
+void ModRefBSCodeGen::oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
+                                   Address dst, Register val, Register tmp1, Register tmp2) {
+  BarrierSetCodeGen::store_at(masm, decorators, type, dst, val, tmp1, tmp2);
+}
+
+void ModRefBSCodeGen::store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
+                               Address dst, Register val, Register tmp1, Register tmp2) {
+  if (type == T_OBJECT || type == T_ARRAY) {
+    oop_store_at(masm, decorators, type, dst, val, tmp1, tmp2);
+  } else {
+    BarrierSetCodeGen::store_at(masm, decorators, type, dst, val, tmp1, tmp2);
+  }
+}