/* * 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 BIONIC_ATOMIC_INLINE_H #define BIONIC_ATOMIC_INLINE_H /* * 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. * * 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 #ifdef __cplusplus extern "C" { #endif /* Define __ATOMIC_INLINE__ to control the inlining of all atomics * functions declared here. For a slight performance boost, we want * all of them to be always_inline */ #define __ATOMIC_INLINE__ static __inline__ __attribute__((always_inline)) #ifdef __arm__ # include "bionic_atomic_arm.h" #elif defined(__i386__) # include "bionic_atomic_x86.h" #elif defined(__mips__) # include "bionic_atomic_mips.h" #else # include "bionic_atomic_gcc_builtin.h" #endif #define ANDROID_MEMBAR_FULL __bionic_memory_barrier #ifdef __cplusplus } // extern "C" #endif #endif // BIONIC_ATOMIC_INLINE_H