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diff --git a/runtime/write_barrier-inl.h b/runtime/write_barrier-inl.h
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+++ b/runtime/write_barrier-inl.h
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+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_RUNTIME_WRITE_BARRIER_INL_H_
+#define ART_RUNTIME_WRITE_BARRIER_INL_H_
+
+#include "write_barrier.h"
+
+#include "gc/accounting/card_table-inl.h"
+#include "gc/heap.h"
+#include "obj_ptr-inl.h"
+#include "runtime.h"
+
+namespace art {
+
+template <WriteBarrier::NullCheck kNullCheck>
+inline void WriteBarrier::ForFieldWrite(ObjPtr<mirror::Object> dst,
+                                        MemberOffset offset ATTRIBUTE_UNUSED,
+                                        ObjPtr<mirror::Object> new_value) {
+  if (kNullCheck == kWithNullCheck && new_value == nullptr) {
+    return;
+  }
+  DCHECK(new_value != nullptr);
+  GetCardTable()->MarkCard(dst.Ptr());
+}
+
+inline void WriteBarrier::ForArrayWrite(ObjPtr<mirror::Object> dst,
+                                        int start_offset ATTRIBUTE_UNUSED,
+                                        size_t length ATTRIBUTE_UNUSED) {
+  GetCardTable()->MarkCard(dst.Ptr());
+}
+
+inline void WriteBarrier::ForEveryFieldWrite(ObjPtr<mirror::Object> obj) {
+  GetCardTable()->MarkCard(obj.Ptr());
+}
+
+inline gc::accounting::CardTable* WriteBarrier::GetCardTable() {
+  return Runtime::Current()->GetHeap()->GetCardTable();
+}
+
+}  // namespace art
+
+#endif  // ART_RUNTIME_WRITE_BARRIER_INL_H_