]>
Commit | Line | Data |
---|---|---|
f35db108 WM |
1 | //===-- sanitizer_atomic.h --------------------------------------*- C++ -*-===// |
2 | // | |
b667dd70 ML |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. | |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |
f35db108 WM |
6 | // |
7 | //===----------------------------------------------------------------------===// | |
8 | // | |
9 | // This file is a part of ThreadSanitizer/AddressSanitizer runtime. | |
10 | // | |
11 | //===----------------------------------------------------------------------===// | |
12 | ||
13 | #ifndef SANITIZER_ATOMIC_H | |
14 | #define SANITIZER_ATOMIC_H | |
15 | ||
16 | #include "sanitizer_internal_defs.h" | |
17 | ||
18 | namespace __sanitizer { | |
19 | ||
20 | enum memory_order { | |
21 | memory_order_relaxed = 1 << 0, | |
22 | memory_order_consume = 1 << 1, | |
23 | memory_order_acquire = 1 << 2, | |
24 | memory_order_release = 1 << 3, | |
25 | memory_order_acq_rel = 1 << 4, | |
26 | memory_order_seq_cst = 1 << 5 | |
27 | }; | |
28 | ||
29 | struct atomic_uint8_t { | |
30 | typedef u8 Type; | |
31 | volatile Type val_dont_use; | |
32 | }; | |
33 | ||
34 | struct atomic_uint16_t { | |
35 | typedef u16 Type; | |
36 | volatile Type val_dont_use; | |
37 | }; | |
38 | ||
5d3805fc JJ |
39 | struct atomic_sint32_t { |
40 | typedef s32 Type; | |
41 | volatile Type val_dont_use; | |
42 | }; | |
43 | ||
f35db108 WM |
44 | struct atomic_uint32_t { |
45 | typedef u32 Type; | |
46 | volatile Type val_dont_use; | |
47 | }; | |
48 | ||
49 | struct atomic_uint64_t { | |
50 | typedef u64 Type; | |
dee5ea7a KS |
51 | // On 32-bit platforms u64 is not necessary aligned on 8 bytes. |
52 | volatile ALIGNED(8) Type val_dont_use; | |
f35db108 WM |
53 | }; |
54 | ||
55 | struct atomic_uintptr_t { | |
56 | typedef uptr Type; | |
57 | volatile Type val_dont_use; | |
58 | }; | |
59 | ||
60 | } // namespace __sanitizer | |
61 | ||
696d846a | 62 | #if defined(__clang__) || defined(__GNUC__) |
f35db108 WM |
63 | # include "sanitizer_atomic_clang.h" |
64 | #elif defined(_MSC_VER) | |
65 | # include "sanitizer_atomic_msvc.h" | |
66 | #else | |
67 | # error "Unsupported compiler" | |
68 | #endif | |
69 | ||
696d846a MO |
70 | namespace __sanitizer { |
71 | ||
72 | // Clutter-reducing helpers. | |
73 | ||
74 | template<typename T> | |
75 | INLINE typename T::Type atomic_load_relaxed(const volatile T *a) { | |
76 | return atomic_load(a, memory_order_relaxed); | |
77 | } | |
78 | ||
79 | template<typename T> | |
80 | INLINE void atomic_store_relaxed(volatile T *a, typename T::Type v) { | |
81 | atomic_store(a, v, memory_order_relaxed); | |
82 | } | |
83 | ||
84 | } // namespace __sanitizer | |
85 | ||
f35db108 | 86 | #endif // SANITIZER_ATOMIC_H |