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| //===-- sanitizer_atomic.h --------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer/AddressSanitizer runtime.
//
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_ATOMIC_H
#define SANITIZER_ATOMIC_H
#include "sanitizer_internal_defs.h"
namespace __sanitizer {
enum memory_order {
memory_order_relaxed = 1 << 0,
memory_order_consume = 1 << 1,
memory_order_acquire = 1 << 2,
memory_order_release = 1 << 3,
memory_order_acq_rel = 1 << 4,
memory_order_seq_cst = 1 << 5
};
struct atomic_uint8_t {
typedef u8 Type;
volatile Type val_dont_use;
};
struct atomic_uint16_t {
typedef u16 Type;
volatile Type val_dont_use;
};
struct atomic_sint32_t {
typedef s32 Type;
volatile Type val_dont_use;
};
struct atomic_uint32_t {
typedef u32 Type;
volatile Type val_dont_use;
};
struct atomic_uint64_t {
typedef u64 Type;
// On 32-bit platforms u64 is not necessary aligned on 8 bytes.
volatile ALIGNED(8) Type val_dont_use;
};
struct atomic_uintptr_t {
typedef uptr Type;
volatile Type val_dont_use;
};
} // namespace __sanitizer
#if defined(__clang__) || defined(__GNUC__)
# include "sanitizer_atomic_clang.h"
#elif defined(_MSC_VER)
# include "sanitizer_atomic_msvc.h"
#else
# error "Unsupported compiler"
#endif
namespace __sanitizer {
// Clutter-reducing helpers.
template<typename T>
INLINE typename T::Type atomic_load_relaxed(const volatile T *a) {
return atomic_load(a, memory_order_relaxed);
}
template<typename T>
INLINE void atomic_store_relaxed(volatile T *a, typename T::Type v) {
atomic_store(a, v, memory_order_relaxed);
}
} // namespace __sanitizer
#endif // SANITIZER_ATOMIC_H
|