Ryan Macnak
877284947b
Like HOST_ARCH_*, HOST_OS_* describes the OS the VM is running on, which may be different from the OS the VM is generating code for during AOT compilation. Currently we conflate the two when emitting AOT as assembly, and we get away with it because Flutter only uses assembly for targeting iOS and one can only target iOS from a Mac, but we expect to use assembly for Android as well so native tools can unwind Dart frames. R=zra@google.com Review-Url: https://codereview.chromium.org/2750843003 .
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_VM_ATOMIC_ANDROID_H_
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#define RUNTIME_VM_ATOMIC_ANDROID_H_
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#if !defined RUNTIME_VM_ATOMIC_H_
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#error Do not include atomic_android.h directly. Use atomic.h instead.
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#endif
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#if !defined(HOST_OS_ANDROID)
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#error This file should only be included on Android builds.
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#endif
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namespace dart {
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inline uintptr_t AtomicOperations::FetchAndIncrement(uintptr_t* p) {
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return __sync_fetch_and_add(p, 1);
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}
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inline intptr_t AtomicOperations::FetchAndIncrement(intptr_t* p) {
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return __sync_fetch_and_add(p, 1);
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}
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inline void AtomicOperations::IncrementBy(intptr_t* p, intptr_t value) {
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__sync_fetch_and_add(p, value);
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}
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inline void AtomicOperations::IncrementInt64By(int64_t* p, int64_t value) {
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__sync_fetch_and_add(p, value);
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}
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inline uintptr_t AtomicOperations::FetchAndDecrement(uintptr_t* p) {
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return __sync_fetch_and_sub(p, 1);
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}
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inline intptr_t AtomicOperations::FetchAndDecrement(intptr_t* p) {
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return __sync_fetch_and_sub(p, 1);
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}
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inline void AtomicOperations::DecrementBy(intptr_t* p, intptr_t value) {
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__sync_fetch_and_sub(p, value);
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}
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#if !defined(USING_SIMULATOR_ATOMICS)
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inline uword AtomicOperations::CompareAndSwapWord(uword* ptr,
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uword old_value,
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uword new_value) {
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return __sync_val_compare_and_swap(ptr, old_value, new_value);
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}
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inline uint32_t AtomicOperations::CompareAndSwapUint32(uint32_t* ptr,
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uint32_t old_value,
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uint32_t new_value) {
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return __sync_val_compare_and_swap(ptr, old_value, new_value);
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}
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#endif // !defined(USING_SIMULATOR_ATOMICS)
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} // namespace dart
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#endif // RUNTIME_VM_ATOMIC_ANDROID_H_
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