Begins work on ARM64, first assembler test.

runtime/vm/code_patcher_arm64.cc

Index: runtime/vm/code_patcher_arm64.cc
===================================================================
--- runtime/vm/code_patcher_arm64.cc	(revision 0)
+++ runtime/vm/code_patcher_arm64.cc	(revision 0)
@@ -0,0 +1,88 @@
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM64.
+#if defined(TARGET_ARCH_ARM64)
+
+#include "vm/code_patcher.h"
+
+#include "vm/instructions.h"
+#include "vm/object.h"
+
+namespace dart {
+
+RawArray* CodePatcher::GetClosureArgDescAt(uword return_address,
+                                           const Code& code) {
+  UNIMPLEMENTED();
+  return NULL;
+}
+
+
+uword CodePatcher::GetStaticCallTargetAt(uword return_address,
+                                         const Code& code) {
+  UNIMPLEMENTED();
+  return 0;
+}
+
+
+void CodePatcher::PatchStaticCallAt(uword return_address,
+                                    const Code& code,
+                                    uword new_target) {
+  UNIMPLEMENTED();
+}
+
+
+void CodePatcher::PatchInstanceCallAt(uword return_address,
+                                      const Code& code,
+                                      uword new_target) {
+  UNIMPLEMENTED();
+}
+
+
+int32_t CodePatcher::GetPoolOffsetAt(uword return_address) {
+  UNIMPLEMENTED();
+  return 0;
+}
+
+
+void CodePatcher::SetPoolOffsetAt(uword return_address, int32_t offset) {
+  UNIMPLEMENTED();
+}
+
+
+void CodePatcher::InsertCallAt(uword start, uword target) {
+  UNIMPLEMENTED();
+}
+
+
+uword CodePatcher::GetInstanceCallAt(uword return_address,
+                                     const Code& code,
+                                     ICData* ic_data) {
+  UNIMPLEMENTED();
+  return 0;
+}
+
+
+intptr_t CodePatcher::InstanceCallSizeInBytes() {
+  // The instance call instruction sequence has a variable size on ARM.
+  UNREACHABLE();
+  return 0;
+}
+
+
+RawFunction* CodePatcher::GetUnoptimizedStaticCallAt(
+    uword return_address, const Code& code, ICData* ic_data_result) {
+  UNIMPLEMENTED();
+  return NULL;
+}
+
+
+RawObject* CodePatcher::GetEdgeCounterAt(uword pc, const Code& code) {
+  UNIMPLEMENTED();
+  return NULL;
+}
+
+}  // namespace dart
+
+#endif  // defined TARGET_ARCH_ARM64