1 files changed, 38 insertions, 0 deletions
diff --git a/chromium/v8/src/heap/code-object-registry.h b/chromium/v8/src/heap/code-object-registry.h
new file mode 100644
index 00000000000..beab1766256
--- /dev/null
+++ b/chromium/v8/src/heap/code-object-registry.h
@@ -0,0 +1,38 @@
+// Copyright 2020 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_HEAP_CODE_OBJECT_REGISTRY_H_
+#define V8_HEAP_CODE_OBJECT_REGISTRY_H_
+
+#include <set>
+#include <vector>
+
+#include "src/base/macros.h"
+#include "src/common/globals.h"
+
+namespace v8 {
+namespace internal {
+
+// The CodeObjectRegistry holds all start addresses of code objects of a given
+// MemoryChunk. Each MemoryChunk owns a separate CodeObjectRegistry. The
+// CodeObjectRegistry allows fast lookup from an inner pointer of a code object
+// to the actual code object.
+class V8_EXPORT_PRIVATE CodeObjectRegistry {
+ public:
+  void RegisterNewlyAllocatedCodeObject(Address code);
+  void RegisterAlreadyExistingCodeObject(Address code);
+  void Clear();
+  void Finalize();
+  bool Contains(Address code) const;
+  Address GetCodeObjectStartFromInnerAddress(Address address) const;
+
+ private:
+  std::vector<Address> code_object_registry_already_existing_;
+  std::set<Address> code_object_registry_newly_allocated_;
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_HEAP_CODE_OBJECT_REGISTRY_H_