--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.aarch64/src/org/graalvm/compiler/hotspot/aarch64/AArch64HotSpotForeignCallsProvider.java	Thu Feb 16 15:46:09 2017 -0800
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2013, 2016, 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.
+ */
+package org.graalvm.compiler.hotspot.aarch64;
+
+import static org.graalvm.compiler.core.common.LocationIdentity.any;
+import static org.graalvm.compiler.hotspot.HotSpotBackend.Options.PreferGraalStubs;
+import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.JUMP_ADDRESS;
+import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.RegisterEffect.PRESERVES_REGISTERS;
+import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.Transition.LEAF;
+import static org.graalvm.compiler.hotspot.replacements.CRC32Substitutions.UPDATE_BYTES_CRC32;
+import static jdk.vm.ci.aarch64.AArch64.r0;
+import static jdk.vm.ci.aarch64.AArch64.r3;
+import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.NativeCall;
+import static jdk.vm.ci.meta.Value.ILLEGAL;
+
+import org.graalvm.compiler.core.common.LIRKind;
+import org.graalvm.compiler.debug.GraalError;
+import org.graalvm.compiler.hotspot.HotSpotBackend;
+import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkageImpl;
+import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider;
+import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
+import org.graalvm.compiler.hotspot.meta.HotSpotHostForeignCallsProvider;
+import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
+import org.graalvm.compiler.word.WordTypes;
+
+import jdk.vm.ci.code.CallingConvention;
+import jdk.vm.ci.code.CodeCacheProvider;
+import jdk.vm.ci.code.RegisterValue;
+import jdk.vm.ci.code.TargetDescription;
+import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider;
+import jdk.vm.ci.meta.MetaAccessProvider;
+import jdk.vm.ci.meta.PlatformKind;
+import jdk.vm.ci.meta.Value;
+
+public class AArch64HotSpotForeignCallsProvider extends HotSpotHostForeignCallsProvider {
+
+    private final Value[] nativeABICallerSaveRegisters;
+
+    public AArch64HotSpotForeignCallsProvider(HotSpotJVMCIRuntimeProvider jvmciRuntime, HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, CodeCacheProvider codeCache,
+                    WordTypes wordTypes, Value[] nativeABICallerSaveRegisters) {
+        super(jvmciRuntime, runtime, metaAccess, codeCache, wordTypes);
+        this.nativeABICallerSaveRegisters = nativeABICallerSaveRegisters;
+    }
+
+    @Override
+    public void initialize(HotSpotProviders providers) {
+        GraalHotSpotVMConfig config = runtime.getVMConfig();
+        TargetDescription target = providers.getCodeCache().getTarget();
+        PlatformKind word = target.arch.getWordKind();
+
+        // The calling convention for the exception handler stub is (only?) defined in
+        // TemplateInterpreterGenerator::generate_throw_exception()
+        RegisterValue exception = r0.asValue(LIRKind.reference(word));
+        RegisterValue exceptionPc = r3.asValue(LIRKind.value(word));
+        CallingConvention exceptionCc = new CallingConvention(0, ILLEGAL, exception, exceptionPc);
+        register(new HotSpotForeignCallLinkageImpl(HotSpotBackend.EXCEPTION_HANDLER, 0L, PRESERVES_REGISTERS, LEAF, exceptionCc, null, NOT_REEXECUTABLE, any()));
+        register(new HotSpotForeignCallLinkageImpl(HotSpotBackend.EXCEPTION_HANDLER_IN_CALLER, JUMP_ADDRESS, PRESERVES_REGISTERS, LEAF, exceptionCc, null, NOT_REEXECUTABLE, any()));
+
+        if (PreferGraalStubs.getValue()) {
+            throw GraalError.unimplemented("PreferGraalStubs");
+        }
+
+        // These stubs do callee saving
+        if (config.useCRC32Intrinsics) {
+            registerForeignCall(UPDATE_BYTES_CRC32, config.updateBytesCRC32Stub, NativeCall, PRESERVES_REGISTERS, LEAF, NOT_REEXECUTABLE, any());
+        }
+
+        super.initialize(providers);
+    }
+
+    @Override
+    public Value[] getNativeABICallerSaveRegisters() {
+        return nativeABICallerSaveRegisters;
+    }
+
+}