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-rw-r--r--include/cutils/atomic-arm64.h156
1 files changed, 0 insertions, 156 deletions
diff --git a/include/cutils/atomic-arm64.h b/include/cutils/atomic-arm64.h
deleted file mode 100644
index 7ae47d7..0000000
--- a/include/cutils/atomic-arm64.h
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- * 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.
- *
- * 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.
- */
-
-#ifndef ANDROID_CUTILS_ATOMIC_AARCH64_H
-#define ANDROID_CUTILS_ATOMIC_AARCH64_H
-
-#include <stdint.h>
-
-#ifndef ANDROID_ATOMIC_INLINE
-#define ANDROID_ATOMIC_INLINE inline __attribute__((always_inline))
-#endif
-
-/*
- TODOAArch64: Revisit the below functions and check for potential
- optimizations using assembly code or otherwise.
-*/
-
-extern ANDROID_ATOMIC_INLINE
-void android_compiler_barrier(void)
-{
- __asm__ __volatile__ ("" : : : "memory");
-}
-
-extern ANDROID_ATOMIC_INLINE
-void android_memory_barrier(void)
-{
- __asm__ __volatile__ ("dmb ish" : : : "memory");
-}
-
-extern ANDROID_ATOMIC_INLINE
-int32_t android_atomic_acquire_load(volatile const int32_t *ptr)
-{
- int32_t value = *ptr;
- android_memory_barrier();
- return value;
-}
-
-extern ANDROID_ATOMIC_INLINE
-int32_t android_atomic_release_load(volatile const int32_t *ptr)
-{
- android_memory_barrier();
- return *ptr;
-}
-
-extern ANDROID_ATOMIC_INLINE
-void android_atomic_acquire_store(int32_t value, volatile int32_t *ptr)
-{
- *ptr = value;
- android_memory_barrier();
-}
-
-extern ANDROID_ATOMIC_INLINE
-void android_atomic_release_store(int32_t value, volatile int32_t *ptr)
-{
- android_memory_barrier();
- *ptr = value;
-}
-
-extern ANDROID_ATOMIC_INLINE
-int android_atomic_cas(int32_t old_value, int32_t new_value,
- volatile int32_t *ptr)
-{
- return __sync_val_compare_and_swap(ptr, old_value, new_value) != old_value;
-}
-
-extern ANDROID_ATOMIC_INLINE
-int android_atomic_acquire_cas(int32_t old_value, int32_t new_value,
- volatile int32_t *ptr)
-{
- int status = android_atomic_cas(old_value, new_value, ptr);
- android_memory_barrier();
- return status;
-}
-
-extern ANDROID_ATOMIC_INLINE
-int android_atomic_release_cas(int32_t old_value, int32_t new_value,
- volatile int32_t *ptr)
-{
- android_memory_barrier();
- return android_atomic_cas(old_value, new_value, ptr);
-}
-
-extern ANDROID_ATOMIC_INLINE
-int32_t android_atomic_add(int32_t increment, volatile int32_t *ptr)
-{
- int32_t prev, status;
- android_memory_barrier();
- do {
- prev = *ptr;
- status = android_atomic_cas(prev, prev + increment, ptr);
- } while (__builtin_expect(status != 0, 0));
- return prev;
-}
-
-extern ANDROID_ATOMIC_INLINE
-int32_t android_atomic_inc(volatile int32_t *addr)
-{
- return android_atomic_add(1, addr);
-}
-
-extern ANDROID_ATOMIC_INLINE
-int32_t android_atomic_dec(volatile int32_t *addr)
-{
- return android_atomic_add(-1, addr);
-}
-
-extern ANDROID_ATOMIC_INLINE
-int32_t android_atomic_and(int32_t value, volatile int32_t *ptr)
-{
- int32_t prev, status;
- android_memory_barrier();
- do {
- prev = *ptr;
- status = android_atomic_cas(prev, prev & value, ptr);
- } while (__builtin_expect(status != 0, 0));
- return prev;
-}
-
-extern ANDROID_ATOMIC_INLINE
-int32_t android_atomic_or(int32_t value, volatile int32_t *ptr)
-{
- int32_t prev, status;
- android_memory_barrier();
- do {
- prev = *ptr;
- status = android_atomic_cas(prev, prev | value, ptr);
- } while (__builtin_expect(status != 0, 0));
- return prev;
-}
-
-#endif /* ANDROID_CUTILS_ATOMIC_AARCH64_H */