diff options
Diffstat (limited to 'contrib/libstdc++/config/cpu/i486/atomicity.h')
-rw-r--r-- | contrib/libstdc++/config/cpu/i486/atomicity.h | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/contrib/libstdc++/config/cpu/i486/atomicity.h b/contrib/libstdc++/config/cpu/i486/atomicity.h index 7c65fab..5700bf3 100644 --- a/contrib/libstdc++/config/cpu/i486/atomicity.h +++ b/contrib/libstdc++/config/cpu/i486/atomicity.h @@ -1,6 +1,6 @@ // Low-level functions for atomic operations: x86, x >= 4 version -*- C++ -*- -// Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. +// Copyright (C) 1999, 2000, 2001, 2004 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the @@ -27,31 +27,27 @@ // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. -#ifndef _BITS_ATOMICITY_H -#define _BITS_ATOMICITY_H 1 +#include <bits/atomicity.h> -typedef int _Atomic_word; - -static inline _Atomic_word -__attribute__ ((__unused__)) -__exchange_and_add (volatile _Atomic_word *__mem, int __val) -{ - register _Atomic_word __result; - __asm__ __volatile__ ("lock; xadd{l} {%0,%1|%1,%0}" - : "=r" (__result), "+m" (*__mem) - : "0" (__val) - : "memory"); - return __result; -} - -static inline void -__attribute__ ((__unused__)) -__atomic_add (volatile _Atomic_word* __mem, int __val) +namespace __gnu_cxx { - __asm__ __volatile__ ("lock; add{l} {%1,%0|%0,%1}" - : "+m" (*__mem) : "ir" (__val) : "memory"); -} - -#endif /* atomicity.h */ - + _Atomic_word + __attribute__ ((__unused__)) + __exchange_and_add(volatile _Atomic_word* __mem, int __val) + { + register _Atomic_word __result; + __asm__ __volatile__ ("lock; xadd{l} {%0,%1|%1,%0}" + : "=r" (__result), "=m" (*__mem) + : "0" (__val), "m" (*__mem)); + return __result; + } + + void + __attribute__ ((__unused__)) + __atomic_add(volatile _Atomic_word* __mem, int __val) + { + __asm__ __volatile__ ("lock; add{l} {%1,%0|%0,%1}" + : "=m" (*__mem) : "ir" (__val), "m" (*__mem)); + } +} // namespace __gnu_cxx |