From c3f909630bd299de807f8edb31eaef140d70ffed Mon Sep 17 00:00:00 2001
From: Elliott Hughes <enh@google.com>
Date: Fri, 23 May 2014 14:36:30 -0700
Subject: [PATCH] Remove <sys/atomics.h>.
Bug: 14903517
Change-Id: I6de1d9d3624922517fdc37922097abbc3b41f661
---
libc/include/sys/atomics.h | 80 --------------------------------------
1 file changed, 80 deletions(-)
delete mode 100644 libc/include/sys/atomics.h
diff --git a/libc/include/sys/atomics.h b/libc/include/sys/atomics.h
deleted file mode 100644
index dfb5d5e5d..000000000
--- a/libc/include/sys/atomics.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright (C) 2008 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 _SYS_ATOMICS_H
-#define _SYS_ATOMICS_H
-
-#include <sys/cdefs.h>
-#include <sys/time.h>
-
-__BEGIN_DECLS
-
-/* Note: atomic operations that were exported by the C library didn't
- * provide any memory barriers, which created potential issues on
- * multi-core devices. We now define them as inlined calls to
- * GCC sync builtins, which always provide a full barrier.
- *
- * NOTE: The C library still exports atomic functions by the same
- * name to ensure ABI stability for existing NDK machine code.
- *
- * If you are an NDK developer, we encourage you to rebuild your
- * unmodified sources against this header as soon as possible.
- */
-#define __ATOMIC_INLINE__ static __inline__ __attribute__((always_inline))
-
-__ATOMIC_INLINE__ int
-__atomic_cmpxchg(int old_value, int new_value, volatile int* ptr)
-{
- /* We must return 0 on success */
- return __sync_val_compare_and_swap(ptr, old_value, new_value) != old_value;
-}
-
-__ATOMIC_INLINE__ int
-__atomic_swap(int new_value, volatile int *ptr)
-{
- int old_value;
- do {
- old_value = *ptr;
- } while (__sync_val_compare_and_swap(ptr, old_value, new_value) != old_value);
- return old_value;
-}
-
-__ATOMIC_INLINE__ int
-__atomic_dec(volatile int *ptr)
-{
- return __sync_fetch_and_sub (ptr, 1);
-}
-
-__ATOMIC_INLINE__ int
-__atomic_inc(volatile int *ptr)
-{
- return __sync_fetch_and_add (ptr, 1);
-}
-
-__END_DECLS
-
-#endif /* _SYS_ATOMICS_H */