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// Copyright 2023 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_SANDBOX_CODE_POINTER_H_
#define V8_SANDBOX_CODE_POINTER_H_
#include "src/common/globals.h"
namespace v8 {
namespace internal {
// Creates and initializes an entry in the CodePointerTable and writes a handle
// for that entry into the field. The entry will contain a pointer to the
// owning code object as well as to the entrypoint.
V8_INLINE void InitCodePointerTableEntryField(Address field_address,
Isolate* isolate,
Tagged<HeapObject> owning_code,
Address entrypoint);
// If the sandbox is enabled: reads the CodePointerHandle from the field and
// reads the entrypoint pointer from the corresponding CodePointerTable entry.
// If the sandbox is disabled: load the external pointer from the field.
V8_INLINE Address ReadCodeEntrypointField(Address field_address);
// If the sandbox is enabled: reads the CodePointerHandle from the field and
// writes the entrypoint pointer to the corresponding CodePointerTable entry.
// If the sandbox is disabled: writes the entrypoint pointer to the field.
V8_INLINE void WriteCodeEntrypointField(Address field_address, Address value);
} // namespace internal
} // namespace v8
#endif // V8_SANDBOX_CODE_POINTER_H_
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