| //===-- 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 |