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Diffstat (limited to 'chromium/v8/src/atomicops_internals_x86_macosx.h')
-rw-r--r-- | chromium/v8/src/atomicops_internals_x86_macosx.h | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/chromium/v8/src/atomicops_internals_x86_macosx.h b/chromium/v8/src/atomicops_internals_x86_macosx.h deleted file mode 100644 index bfb02b3851f..00000000000 --- a/chromium/v8/src/atomicops_internals_x86_macosx.h +++ /dev/null @@ -1,301 +0,0 @@ -// Copyright 2010 the V8 project authors. All rights reserved. -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following -// disclaimer in the documentation and/or other materials provided -// with the distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived -// from this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// This file is an internal atomic implementation, use atomicops.h instead. - -#ifndef V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_ -#define V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_ - -#include <libkern/OSAtomic.h> - -namespace v8 { -namespace internal { - -inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr, - Atomic32 old_value, - Atomic32 new_value) { - Atomic32 prev_value; - do { - if (OSAtomicCompareAndSwap32(old_value, new_value, - const_cast<Atomic32*>(ptr))) { - return old_value; - } - prev_value = *ptr; - } while (prev_value == old_value); - return prev_value; -} - -inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr, - Atomic32 new_value) { - Atomic32 old_value; - do { - old_value = *ptr; - } while (!OSAtomicCompareAndSwap32(old_value, new_value, - const_cast<Atomic32*>(ptr))); - return old_value; -} - -inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr, - Atomic32 increment) { - return OSAtomicAdd32(increment, const_cast<Atomic32*>(ptr)); -} - -inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr, - Atomic32 increment) { - return OSAtomicAdd32Barrier(increment, const_cast<Atomic32*>(ptr)); -} - -inline void MemoryBarrier() { - OSMemoryBarrier(); -} - -inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr, - Atomic32 old_value, - Atomic32 new_value) { - Atomic32 prev_value; - do { - if (OSAtomicCompareAndSwap32Barrier(old_value, new_value, - const_cast<Atomic32*>(ptr))) { - return old_value; - } - prev_value = *ptr; - } while (prev_value == old_value); - return prev_value; -} - -inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr, - Atomic32 old_value, - Atomic32 new_value) { - return Acquire_CompareAndSwap(ptr, old_value, new_value); -} - -inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { - *ptr = value; -} - -inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) { - *ptr = value; - MemoryBarrier(); -} - -inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) { - MemoryBarrier(); - *ptr = value; -} - -inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { - return *ptr; -} - -inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) { - Atomic32 value = *ptr; - MemoryBarrier(); - return value; -} - -inline Atomic32 Release_Load(volatile const Atomic32* ptr) { - MemoryBarrier(); - return *ptr; -} - -#ifdef __LP64__ - -// 64-bit implementation on 64-bit platform - -inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, - Atomic64 old_value, - Atomic64 new_value) { - Atomic64 prev_value; - do { - if (OSAtomicCompareAndSwap64(old_value, new_value, - const_cast<Atomic64*>(ptr))) { - return old_value; - } - prev_value = *ptr; - } while (prev_value == old_value); - return prev_value; -} - -inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, - Atomic64 new_value) { - Atomic64 old_value; - do { - old_value = *ptr; - } while (!OSAtomicCompareAndSwap64(old_value, new_value, - const_cast<Atomic64*>(ptr))); - return old_value; -} - -inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr, - Atomic64 increment) { - return OSAtomicAdd64(increment, const_cast<Atomic64*>(ptr)); -} - -inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr, - Atomic64 increment) { - return OSAtomicAdd64Barrier(increment, const_cast<Atomic64*>(ptr)); -} - -inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, - Atomic64 old_value, - Atomic64 new_value) { - Atomic64 prev_value; - do { - if (OSAtomicCompareAndSwap64Barrier(old_value, new_value, - const_cast<Atomic64*>(ptr))) { - return old_value; - } - prev_value = *ptr; - } while (prev_value == old_value); - return prev_value; -} - -inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr, - Atomic64 old_value, - Atomic64 new_value) { - // The lib kern interface does not distinguish between - // Acquire and Release memory barriers; they are equivalent. - return Acquire_CompareAndSwap(ptr, old_value, new_value); -} - -inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { - *ptr = value; -} - -inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) { - *ptr = value; - MemoryBarrier(); -} - -inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { - MemoryBarrier(); - *ptr = value; -} - -inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { - return *ptr; -} - -inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { - Atomic64 value = *ptr; - MemoryBarrier(); - return value; -} - -inline Atomic64 Release_Load(volatile const Atomic64* ptr) { - MemoryBarrier(); - return *ptr; -} - -#endif // defined(__LP64__) - -// MacOS uses long for intptr_t, AtomicWord and Atomic32 are always different -// on the Mac, even when they are the same size. We need to explicitly cast -// from AtomicWord to Atomic32/64 to implement the AtomicWord interface. -#ifdef __LP64__ -#define AtomicWordCastType Atomic64 -#else -#define AtomicWordCastType Atomic32 -#endif - -inline AtomicWord NoBarrier_CompareAndSwap(volatile AtomicWord* ptr, - AtomicWord old_value, - AtomicWord new_value) { - return NoBarrier_CompareAndSwap( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), - old_value, new_value); -} - -inline AtomicWord NoBarrier_AtomicExchange(volatile AtomicWord* ptr, - AtomicWord new_value) { - return NoBarrier_AtomicExchange( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), new_value); -} - -inline AtomicWord NoBarrier_AtomicIncrement(volatile AtomicWord* ptr, - AtomicWord increment) { - return NoBarrier_AtomicIncrement( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), increment); -} - -inline AtomicWord Barrier_AtomicIncrement(volatile AtomicWord* ptr, - AtomicWord increment) { - return Barrier_AtomicIncrement( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), increment); -} - -inline AtomicWord Acquire_CompareAndSwap(volatile AtomicWord* ptr, - AtomicWord old_value, - AtomicWord new_value) { - return v8::internal::Acquire_CompareAndSwap( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), - old_value, new_value); -} - -inline AtomicWord Release_CompareAndSwap(volatile AtomicWord* ptr, - AtomicWord old_value, - AtomicWord new_value) { - return v8::internal::Release_CompareAndSwap( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), - old_value, new_value); -} - -inline void NoBarrier_Store(volatile AtomicWord* ptr, AtomicWord value) { - NoBarrier_Store( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), value); -} - -inline void Acquire_Store(volatile AtomicWord* ptr, AtomicWord value) { - return v8::internal::Acquire_Store( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), value); -} - -inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) { - return v8::internal::Release_Store( - reinterpret_cast<volatile AtomicWordCastType*>(ptr), value); -} - -inline AtomicWord NoBarrier_Load(volatile const AtomicWord* ptr) { - return NoBarrier_Load( - reinterpret_cast<volatile const AtomicWordCastType*>(ptr)); -} - -inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) { - return v8::internal::Acquire_Load( - reinterpret_cast<volatile const AtomicWordCastType*>(ptr)); -} - -inline AtomicWord Release_Load(volatile const AtomicWord* ptr) { - return v8::internal::Release_Load( - reinterpret_cast<volatile const AtomicWordCastType*>(ptr)); -} - -#undef AtomicWordCastType - -} } // namespace v8::internal - -#endif // V8_ATOMICOPS_INTERNALS_X86_MACOSX_H_ |