cad56b6ad3
These are no longer used, and we want to strongly discourage future use.
Keep the 32-bit variants while there are still uses. All users should move
to C11 or C++11 atomics.
(Resolved conflicts in atomic-...64.h with uniprocessor support
removal as in AOSP.)
Bug:16880454
Change-Id: I122b541cfd29ef4a6c932647f85d0d6a9d802061
(cherry picked from commit 9959ed9530)
72 lines
2 KiB
C
72 lines
2 KiB
C
/*
|
|
* Copyright (C) 2010 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ANDROID_CUTILS_ATOMIC_INLINE_H
|
|
#define ANDROID_CUTILS_ATOMIC_INLINE_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
* Inline declarations and macros for some special-purpose atomic
|
|
* operations. These are intended for rare circumstances where a
|
|
* memory barrier needs to be issued inline rather than as a function
|
|
* call.
|
|
*
|
|
* Most code should not use these.
|
|
*
|
|
* Anything that does include this file must set ANDROID_SMP to either
|
|
* 0 or 1, indicating compilation for UP or SMP, respectively.
|
|
*
|
|
* Macros defined in this header:
|
|
*
|
|
* void ANDROID_MEMBAR_FULL(void)
|
|
* Full memory barrier. Provides a compiler reordering barrier, and
|
|
* on SMP systems emits an appropriate instruction.
|
|
*/
|
|
|
|
#if !defined(ANDROID_SMP)
|
|
# error "Must define ANDROID_SMP before including atomic-inline.h"
|
|
#endif
|
|
|
|
#if defined(__aarch64__)
|
|
#include <cutils/atomic-arm64.h>
|
|
#elif defined(__arm__)
|
|
#include <cutils/atomic-arm.h>
|
|
#elif defined(__i386__)
|
|
#include <cutils/atomic-x86.h>
|
|
#elif defined(__x86_64__)
|
|
#include <cutils/atomic-x86_64.h>
|
|
#elif defined(__mips64)
|
|
#include <cutils/atomic-mips64.h>
|
|
#elif defined(__mips__)
|
|
#include <cutils/atomic-mips.h>
|
|
#else
|
|
#error atomic operations are unsupported
|
|
#endif
|
|
|
|
#if ANDROID_SMP == 0
|
|
#define ANDROID_MEMBAR_FULL android_compiler_barrier
|
|
#else
|
|
#define ANDROID_MEMBAR_FULL android_memory_barrier
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* ANDROID_CUTILS_ATOMIC_INLINE_H */
|