src/developer/debug/zxdb/symbols/arch.h

// Copyright 2018 The Fuchsia 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 SRC_DEVELOPER_DEBUG_ZXDB_SYMBOLS_ARCH_H_
#define SRC_DEVELOPER_DEBUG_ZXDB_SYMBOLS_ARCH_H_

#include <stddef.h>
#include <stdint.h>

namespace zxdb {

// The type used for storing pointers on the target system. This is to help differentiate pointers
// from random integers.
//
// This is the static type used to store pointer data, so it will always have to be large enough to
// hold pointers for the largest-bittedness-system we support. Because this won't change with the
// target architecture, computations involving the bit size of the target architecture should use
// kTargetPointerSize.
using TargetPointer = uint64_t;

// Size of a pointer on the target system. Currently we only support 64-bit. Use this constant
// instead of sizeof(TargetPointer) so that in the future if we support non-64-bit target
// architectures we can search for this constant and replace it with a more complex query that uses
// the computed pointer size for the declared architecture.
constexpr size_t kTargetPointerSize = sizeof(TargetPointer);

}  // namespace zxdb

#endif  // SRC_DEVELOPER_DEBUG_ZXDB_SYMBOLS_ARCH_H_