projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc JJ |
1 | //===-- sanitizer_atomic.h --------------------------------------*- C++ -*-===// |
| 2 | // | |
| 3 | // The LLVM Compiler Infrastructure | |
| 4 | // | |
| 5 | // This file is distributed under the University of Illinois Open Source | |
| 6 | // License. See LICENSE.TXT for details. | |
| 7 | // | |
| 8 | //===----------------------------------------------------------------------===// | |
| 9 | // | |
| 10 | // This file is a part of ThreadSanitizer/AddressSanitizer runtime. | |
| 11 | // | |
| 12 | //===----------------------------------------------------------------------===// | |
| 13 | ||
| 14 | #ifndef SANITIZER_ATOMIC_H | |
| 15 | #define SANITIZER_ATOMIC_H | |
| 16 | ||
| 17 | #include "sanitizer_internal_defs.h" | |
| 18 | ||
| 19 | namespace __sanitizer { | |
| 20 | ||
| 21 | enum memory_order { | |
| 22 | memory_order_relaxed = 1 << 0, | |
| 23 | memory_order_consume = 1 << 1, | |
| 24 | memory_order_acquire = 1 << 2, | |
| 25 | memory_order_release = 1 << 3, | |
| 26 | memory_order_acq_rel = 1 << 4, | |
| 27 | memory_order_seq_cst = 1 << 5 | |
| 28 | }; | |
| 29 | ||
| 30 | struct atomic_uint8_t { | |
| 31 | typedef u8 Type; | |
| 32 | volatile Type val_dont_use; | |
| 33 | }; | |
| 34 | ||
| 35 | struct atomic_uint16_t { | |
| 36 | typedef u16 Type; | |
| 37 | volatile Type val_dont_use; | |
| 38 | }; | |
| 39 | ||
| 40 | struct atomic_uint32_t { | |
| 41 | typedef u32 Type; | |
| 42 | volatile Type val_dont_use; | |
| 43 | }; | |
| 44 | ||
| 45 | struct atomic_uint64_t { | |
| 46 | typedef u64 Type; | |
| 47 | // On 32-bit platforms u64 is not necessary aligned on 8 bytes. | |
| 48 | volatile ALIGNED(8) Type val_dont_use; | |
| 49 | }; | |
| 50 | ||
| 51 | struct atomic_uintptr_t { | |
| 52 | typedef uptr Type; | |
| 53 | volatile Type val_dont_use; | |
| 54 | }; | |
| 55 | ||
| 56 | } // namespace __sanitizer | |
| 57 | ||
| 92a42be0 | 58 | #if defined(__clang__) || defined(__GNUC__) |
| 1a4d82fc JJ |
59 | # include "sanitizer_atomic_clang.h" |
| 60 | #elif defined(_MSC_VER) | |
| 61 | # include "sanitizer_atomic_msvc.h" | |
| 62 | #else | |
| 63 | # error "Unsupported compiler" | |
| 64 | #endif | |
| 65 | ||
| 92a42be0 SL |
66 | namespace __sanitizer { |
| 67 | ||
| 68 | // Clutter-reducing helpers. | |
| 69 | ||
| 70 | template<typename T> | |
| 71 | INLINE typename T::Type atomic_load_relaxed(const volatile T *a) { | |
| 72 | return atomic_load(a, memory_order_relaxed); | |
| 73 | } | |
| 74 | ||
| 75 | template<typename T> | |
| 76 | INLINE void atomic_store_relaxed(volatile T *a, typename T::Type v) { | |
| 77 | atomic_store(a, v, memory_order_relaxed); | |
| 78 | } | |
| 79 | ||
| 80 | } // namespace __sanitizer | |
| 81 | ||
| 1a4d82fc | 82 | #endif // SANITIZER_ATOMIC_H |