summaryrefslogtreecommitdiffstats
path: root/base/atomicops_internals_tsan.h
blob: 44d64009c70440311e2774d84c82279386e21fa2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// This file is an internal atomic implementation for compiler-based
// ThreadSanitizer. Use base/atomicops.h instead.

#ifndef BASE_ATOMICOPS_INTERNALS_TSAN_H_
#define BASE_ATOMICOPS_INTERNALS_TSAN_H_

#include "base/base_export.h"

// This struct is not part of the public API of this module; clients may not
// use it.  (However, it's exported via BASE_EXPORT because clients implicitly
// do use it at link time by inlining these functions.)
// Features of this x86.  Values may not be correct before main() is run,
// but are set conservatively.
struct AtomicOps_x86CPUFeatureStruct {
  bool has_amd_lock_mb_bug;  // Processor has AMD memory-barrier bug; do lfence
                             // after acquire compare-and-swap.
  bool has_sse2;             // Processor has SSE2.
};
BASE_EXPORT extern struct AtomicOps_x86CPUFeatureStruct
    AtomicOps_Internalx86CPUFeatures;

#define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory")

namespace base {
namespace subtle {

#ifndef TSAN_INTERFACE_ATOMIC_H
#define TSAN_INTERFACE_ATOMIC_H

#ifdef __cplusplus
extern "C" {
#endif

typedef char  __tsan_atomic8;
typedef short __tsan_atomic16;  // NOLINT
typedef int   __tsan_atomic32;
typedef long  __tsan_atomic64;  // NOLINT

#if defined(__SIZEOF_INT128__) \
    || (__clang_major__ * 100 + __clang_minor__ >= 302)
typedef __int128 __tsan_atomic128;
#define __TSAN_HAS_INT128 1
#else
typedef char     __tsan_atomic128;
#define __TSAN_HAS_INT128 0
#endif

typedef enum {
  __tsan_memory_order_relaxed,
  __tsan_memory_order_consume,
  __tsan_memory_order_acquire,
  __tsan_memory_order_release,
  __tsan_memory_order_acq_rel,
  __tsan_memory_order_seq_cst,
} __tsan_memory_order;

__tsan_atomic8 __tsan_atomic8_load(const volatile __tsan_atomic8 *a,
    __tsan_memory_order mo);
__tsan_atomic16 __tsan_atomic16_load(const volatile __tsan_atomic16 *a,
    __tsan_memory_order mo);
__tsan_atomic32 __tsan_atomic32_load(const volatile __tsan_atomic32 *a,
    __tsan_memory_order mo);
__tsan_atomic64 __tsan_atomic64_load(const volatile __tsan_atomic64 *a,
    __tsan_memory_order mo);
__tsan_atomic128 __tsan_atomic128_load(const volatile __tsan_atomic128 *a,
    __tsan_memory_order mo);

void __tsan_atomic8_store(volatile __tsan_atomic8 *a, __tsan_atomic8 v,
    __tsan_memory_order mo);
void __tsan_atomic16_store(volatile __tsan_atomic16 *a, __tsan_atomic16 v,
    __tsan_memory_order mo);
void __tsan_atomic32_store(volatile __tsan_atomic32 *a, __tsan_atomic32 v,
    __tsan_memory_order mo);
void __tsan_atomic64_store(volatile __tsan_atomic64 *a, __tsan_atomic64 v,
    __tsan_memory_order mo);
void __tsan_atomic128_store(volatile __tsan_atomic128 *a, __tsan_atomic128 v,
    __tsan_memory_order mo);

__tsan_atomic8 __tsan_atomic8_exchange(volatile __tsan_atomic8 *a,
    __tsan_atomic8 v, __tsan_memory_order mo);
__tsan_atomic16 __tsan_atomic16_exchange(volatile __tsan_atomic16 *a,
    __tsan_atomic16 v, __tsan_memory_order mo);
__tsan_atomic32 __tsan_atomic32_exchange(volatile __tsan_atomic32 *a,
    __tsan_atomic32 v, __tsan_memory_order mo);
__tsan_atomic64 __tsan_atomic64_exchange(volatile __tsan_atomic64 *a,
    __tsan_atomic64 v, __tsan_memory_order mo);
__tsan_atomic128 __tsan_atomic128_exchange(volatile __tsan_atomic128 *a,
    __tsan_atomic128 v, __tsan_memory_order mo);

__tsan_atomic8 __tsan_atomic8_fetch_add(volatile __tsan_atomic8 *a,
    __tsan_atomic8 v, __tsan_memory_order mo);
__tsan_atomic16 __tsan_atomic16_fetch_add(volatile __tsan_atomic16 *a,
    __tsan_atomic16 v, __tsan_memory_order mo);
__tsan_atomic32 __tsan_atomic32_fetch_add(volatile __tsan_atomic32 *a,
    __tsan_atomic32 v, __tsan_memory_order mo);
__tsan_atomic64 __tsan_atomic64_fetch_add(volatile __tsan_atomic64 *a,
    __tsan_atomic64 v, __tsan_memory_order mo);
__tsan_atomic128 __tsan_atomic128_fetch_add(volatile __tsan_atomic128 *a,
    __tsan_atomic128 v, __tsan_memory_order mo);

__tsan_atomic8 __tsan_atomic8_fetch_and(volatile __tsan_atomic8 *a,
    __tsan_atomic8 v, __tsan_memory_order mo);
__tsan_atomic16 __tsan_atomic16_fetch_and(volatile __tsan_atomic16 *a,
    __tsan_atomic16 v, __tsan_memory_order mo);
__tsan_atomic32 __tsan_atomic32_fetch_and(volatile __tsan_atomic32 *a,
    __tsan_atomic32 v, __tsan_memory_order mo);
__tsan_atomic64 __tsan_atomic64_fetch_and(volatile __tsan_atomic64 *a,
    __tsan_atomic64 v, __tsan_memory_order mo);
__tsan_atomic128 __tsan_atomic128_fetch_and(volatile __tsan_atomic128 *a,
    __tsan_atomic128 v, __tsan_memory_order mo);

__tsan_atomic8 __tsan_atomic8_fetch_or(volatile __tsan_atomic8 *a,
    __tsan_atomic8 v, __tsan_memory_order mo);
__tsan_atomic16 __tsan_atomic16_fetch_or(volatile __tsan_atomic16 *a,
    __tsan_atomic16 v, __tsan_memory_order mo);
__tsan_atomic32 __tsan_atomic32_fetch_or(volatile __tsan_atomic32 *a,
    __tsan_atomic32 v, __tsan_memory_order mo);
__tsan_atomic64 __tsan_atomic64_fetch_or(volatile __tsan_atomic64 *a,
    __tsan_atomic64 v, __tsan_memory_order mo);
__tsan_atomic128 __tsan_atomic128_fetch_or(volatile __tsan_atomic128 *a,
    __tsan_atomic128 v, __tsan_memory_order mo);

__tsan_atomic8 __tsan_atomic8_fetch_xor(volatile __tsan_atomic8 *a,
    __tsan_atomic8 v, __tsan_memory_order mo);
__tsan_atomic16 __tsan_atomic16_fetch_xor(volatile __tsan_atomic16 *a,
    __tsan_atomic16 v, __tsan_memory_order mo);
__tsan_atomic32 __tsan_atomic32_fetch_xor(volatile __tsan_atomic32 *a,
    __tsan_atomic32 v, __tsan_memory_order mo);
__tsan_atomic64 __tsan_atomic64_fetch_xor(volatile __tsan_atomic64 *a,
    __tsan_atomic64 v, __tsan_memory_order mo);
__tsan_atomic128 __tsan_atomic128_fetch_xor(volatile __tsan_atomic128 *a,
    __tsan_atomic128 v, __tsan_memory_order mo);

__tsan_atomic8 __tsan_atomic8_fetch_nand(volatile __tsan_atomic8 *a,
    __tsan_atomic8 v, __tsan_memory_order mo);
__tsan_atomic16 __tsan_atomic16_fetch_nand(volatile __tsan_atomic16 *a,
    __tsan_atomic16 v, __tsan_memory_order mo);
__tsan_atomic32 __tsan_atomic32_fetch_nand(volatile __tsan_atomic32 *a,
    __tsan_atomic32 v, __tsan_memory_order mo);
__tsan_atomic64 __tsan_atomic64_fetch_nand(volatile __tsan_atomic64 *a,
    __tsan_atomic64 v, __tsan_memory_order mo);
__tsan_atomic128 __tsan_atomic128_fetch_nand(volatile __tsan_atomic128 *a,
    __tsan_atomic128 v, __tsan_memory_order mo);

int __tsan_atomic8_compare_exchange_weak(volatile __tsan_atomic8 *a,
    __tsan_atomic8 *c, __tsan_atomic8 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic16_compare_exchange_weak(volatile __tsan_atomic16 *a,
    __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic32_compare_exchange_weak(volatile __tsan_atomic32 *a,
    __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic64_compare_exchange_weak(volatile __tsan_atomic64 *a,
    __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic128_compare_exchange_weak(volatile __tsan_atomic128 *a,
    __tsan_atomic128 *c, __tsan_atomic128 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);

int __tsan_atomic8_compare_exchange_strong(volatile __tsan_atomic8 *a,
    __tsan_atomic8 *c, __tsan_atomic8 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic16_compare_exchange_strong(volatile __tsan_atomic16 *a,
    __tsan_atomic16 *c, __tsan_atomic16 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic32_compare_exchange_strong(volatile __tsan_atomic32 *a,
    __tsan_atomic32 *c, __tsan_atomic32 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic64_compare_exchange_strong(volatile __tsan_atomic64 *a,
    __tsan_atomic64 *c, __tsan_atomic64 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);
int __tsan_atomic128_compare_exchange_strong(volatile __tsan_atomic128 *a,
    __tsan_atomic128 *c, __tsan_atomic128 v, __tsan_memory_order mo,
    __tsan_memory_order fail_mo);

__tsan_atomic8 __tsan_atomic8_compare_exchange_val(
    volatile __tsan_atomic8 *a, __tsan_atomic8 c, __tsan_atomic8 v,
    __tsan_memory_order mo, __tsan_memory_order fail_mo);
__tsan_atomic16 __tsan_atomic16_compare_exchange_val(
    volatile __tsan_atomic16 *a, __tsan_atomic16 c, __tsan_atomic16 v,
    __tsan_memory_order mo, __tsan_memory_order fail_mo);
__tsan_atomic32 __tsan_atomic32_compare_exchange_val(
    volatile __tsan_atomic32 *a, __tsan_atomic32 c, __tsan_atomic32 v,
    __tsan_memory_order mo, __tsan_memory_order fail_mo);
__tsan_atomic64 __tsan_atomic64_compare_exchange_val(
    volatile __tsan_atomic64 *a, __tsan_atomic64 c, __tsan_atomic64 v,
    __tsan_memory_order mo, __tsan_memory_order fail_mo);
__tsan_atomic128 __tsan_atomic128_compare_exchange_val(
    volatile __tsan_atomic128 *a, __tsan_atomic128 c, __tsan_atomic128 v,
    __tsan_memory_order mo, __tsan_memory_order fail_mo);

void __tsan_atomic_thread_fence(__tsan_memory_order mo);
void __tsan_atomic_signal_fence(__tsan_memory_order mo);

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // #ifndef TSAN_INTERFACE_ATOMIC_H

inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32 *ptr,
                                  Atomic32 old_value,
                                  Atomic32 new_value) {
  Atomic32 cmp = old_value;
  __tsan_atomic32_compare_exchange_strong(ptr, &cmp, new_value,
      __tsan_memory_order_relaxed, __tsan_memory_order_relaxed);
  return cmp;
}

inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32 *ptr,
                                  Atomic32 new_value) {
  return __tsan_atomic32_exchange(ptr, new_value,
      __tsan_memory_order_relaxed);
}

inline Atomic32 Acquire_AtomicExchange(volatile Atomic32 *ptr,
                                Atomic32 new_value) {
  return __tsan_atomic32_exchange(ptr, new_value,
      __tsan_memory_order_acquire);
}

inline Atomic32 Release_AtomicExchange(volatile Atomic32 *ptr,
                                Atomic32 new_value) {
  return __tsan_atomic32_exchange(ptr, new_value,
      __tsan_memory_order_release);
}

inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32 *ptr,
                                   Atomic32 increment) {
  return increment + __tsan_atomic32_fetch_add(ptr, increment,
      __tsan_memory_order_relaxed);
}

inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32 *ptr,
                                 Atomic32 increment) {
  return increment + __tsan_atomic32_fetch_add(ptr, increment,
      __tsan_memory_order_acq_rel);
}

inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32 *ptr,
                                Atomic32 old_value,
                                Atomic32 new_value) {
  Atomic32 cmp = old_value;
  __tsan_atomic32_compare_exchange_strong(ptr, &cmp, new_value,
      __tsan_memory_order_acquire, __tsan_memory_order_acquire);
  return cmp;
}

inline Atomic32 Release_CompareAndSwap(volatile Atomic32 *ptr,
                                Atomic32 old_value,
                                Atomic32 new_value) {
  Atomic32 cmp = old_value;
  __tsan_atomic32_compare_exchange_strong(ptr, &cmp, new_value,
      __tsan_memory_order_release, __tsan_memory_order_relaxed);
  return cmp;
}

inline void NoBarrier_Store(volatile Atomic32 *ptr, Atomic32 value) {
  __tsan_atomic32_store(ptr, value, __tsan_memory_order_relaxed);
}

inline void Acquire_Store(volatile Atomic32 *ptr, Atomic32 value) {
  __tsan_atomic32_store(ptr, value, __tsan_memory_order_relaxed);
  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
}

inline void Release_Store(volatile Atomic32 *ptr, Atomic32 value) {
  __tsan_atomic32_store(ptr, value, __tsan_memory_order_release);
}

inline Atomic32 NoBarrier_Load(volatile const Atomic32 *ptr) {
  return __tsan_atomic32_load(ptr, __tsan_memory_order_relaxed);
}

inline Atomic32 Acquire_Load(volatile const Atomic32 *ptr) {
  return __tsan_atomic32_load(ptr, __tsan_memory_order_acquire);
}

inline Atomic32 Release_Load(volatile const Atomic32 *ptr) {
  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
  return __tsan_atomic32_load(ptr, __tsan_memory_order_relaxed);
}

inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64 *ptr,
                                      Atomic64 old_value,
                                      Atomic64 new_value) {
  Atomic64 cmp = old_value;
  __tsan_atomic64_compare_exchange_strong(ptr, &cmp, new_value,
      __tsan_memory_order_relaxed, __tsan_memory_order_relaxed);
  return cmp;
}

inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64 *ptr,
                                      Atomic64 new_value) {
  return __tsan_atomic64_exchange(ptr, new_value, __tsan_memory_order_relaxed);
}

inline Atomic64 Acquire_AtomicExchange(volatile Atomic64 *ptr,
                                    Atomic64 new_value) {
  return __tsan_atomic64_exchange(ptr, new_value, __tsan_memory_order_acquire);
}

inline Atomic64 Release_AtomicExchange(volatile Atomic64 *ptr,
                                    Atomic64 new_value) {
  return __tsan_atomic64_exchange(ptr, new_value, __tsan_memory_order_release);
}

inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64 *ptr,
                                       Atomic64 increment) {
  return increment + __tsan_atomic64_fetch_add(ptr, increment,
      __tsan_memory_order_relaxed);
}

inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64 *ptr,
                                     Atomic64 increment) {
  return increment + __tsan_atomic64_fetch_add(ptr, increment,
      __tsan_memory_order_acq_rel);
}

inline void NoBarrier_Store(volatile Atomic64 *ptr, Atomic64 value) {
  __tsan_atomic64_store(ptr, value, __tsan_memory_order_relaxed);
}

inline void Acquire_Store(volatile Atomic64 *ptr, Atomic64 value) {
  __tsan_atomic64_store(ptr, value, __tsan_memory_order_relaxed);
  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
}

inline void Release_Store(volatile Atomic64 *ptr, Atomic64 value) {
  __tsan_atomic64_store(ptr, value, __tsan_memory_order_release);
}

inline Atomic64 NoBarrier_Load(volatile const Atomic64 *ptr) {
  return __tsan_atomic64_load(ptr, __tsan_memory_order_relaxed);
}

inline Atomic64 Acquire_Load(volatile const Atomic64 *ptr) {
  return __tsan_atomic64_load(ptr, __tsan_memory_order_acquire);
}

inline Atomic64 Release_Load(volatile const Atomic64 *ptr) {
  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
  return __tsan_atomic64_load(ptr, __tsan_memory_order_relaxed);
}

inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64 *ptr,
                                    Atomic64 old_value,
                                    Atomic64 new_value) {
  Atomic64 cmp = old_value;
  __tsan_atomic64_compare_exchange_strong(ptr, &cmp, new_value,
      __tsan_memory_order_acquire, __tsan_memory_order_acquire);
  return cmp;
}

inline Atomic64 Release_CompareAndSwap(volatile Atomic64 *ptr,
                                    Atomic64 old_value,
                                    Atomic64 new_value) {
  Atomic64 cmp = old_value;
  __tsan_atomic64_compare_exchange_strong(ptr, &cmp, new_value,
      __tsan_memory_order_release, __tsan_memory_order_relaxed);
  return cmp;
}

inline void MemoryBarrier() {
  __tsan_atomic_thread_fence(__tsan_memory_order_seq_cst);
}

}  // namespace base::subtle
}  // namespace base

#undef ATOMICOPS_COMPILER_BARRIER

#endif  // BASE_ATOMICOPS_INTERNALS_TSAN_H_