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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file is an internal atomic implementation, use base/atomicops.h instead. | 5 // This file is an internal atomic implementation, use base/atomicops.h instead. |
6 // | 6 // |
7 // LinuxKernelCmpxchg and Barrier_AtomicIncrement are from Google Gears. | 7 // LinuxKernelCmpxchg and Barrier_AtomicIncrement are from Google Gears. |
8 | 8 |
9 #ifndef BASE_ATOMICOPS_INTERNALS_ARM_GCC_H_ | 9 #ifndef BASE_ATOMICOPS_INTERNALS_ARM_GCC_H_ |
10 #define BASE_ATOMICOPS_INTERNALS_ARM_GCC_H_ | 10 #define BASE_ATOMICOPS_INTERNALS_ARM_GCC_H_ |
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281 Atomic32 value = *ptr; | 281 Atomic32 value = *ptr; |
282 MemoryBarrier(); | 282 MemoryBarrier(); |
283 return value; | 283 return value; |
284 } | 284 } |
285 | 285 |
286 inline Atomic32 Release_Load(volatile const Atomic32* ptr) { | 286 inline Atomic32 Release_Load(volatile const Atomic32* ptr) { |
287 MemoryBarrier(); | 287 MemoryBarrier(); |
288 return *ptr; | 288 return *ptr; |
289 } | 289 } |
290 | 290 |
291 } // namespace base::subtle | 291 } // namespace subtle |
292 } // namespace base | 292 } // namespace base |
293 | 293 |
294 #endif // BASE_ATOMICOPS_INTERNALS_ARM_GCC_H_ | 294 #endif // BASE_ATOMICOPS_INTERNALS_ARM_GCC_H_ |
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