--- /dev/null	2021-01-19 17:38:25.908523431 +0000
+++ new/src/cpu/aarch64/vm/c2_init_aarch64.cpp	2021-01-25 19:31:36.015468895 +0000
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2013, Red Hat Inc.
+ * Copyright (c) 2000, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "opto/compile.hpp"
+#include "opto/node.hpp"
+
+// processor dependent initialization for i486
+
+void Compile::pd_compiler2_init() {
+  guarantee(CodeEntryAlignment >= InteriorEntryAlignment, "" );
+  // QQQ presumably all 64bit cpu's support this. Seems like the ifdef could
+  // simply be left out.
+}