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2000-08-22 Richard B. Kreckel <Richard.Kreckel@Uni-Mainz.DE> * config/cpu/alpha/bits/atomicity.h: Change __attribute__ ((unused)) to __attribute__ ((__unused__)). * config/cpu/arm/bits/atomicity.h: Same. * config/cpu/generic/bits/atomicity.h: Same. * config/cpu/i386/bits/atomicity.h: Same. * config/cpu/i486/bits/atomicity.h: Same. * config/cpu/powerpc/bits/atomicity.h: Same. * config/cpu/sparc/sparc32/bits/atomicity.h: Same. * config/cpu/sparc/sparc64/bits/atomicity.h: Same. From-SVN: r35882
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* Low-level functions for atomic operations. Stub version.
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Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _BITS_ATOMICITY_H
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#define _BITS_ATOMICITY_H 1
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typedef int _Atomic_word;
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static inline _Atomic_word
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__attribute__ ((__unused__))
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__exchange_and_add (_Atomic_word* __mem, int __val)
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{
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_Atomic_word __result = *__mem;
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*__mem += __val;
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return __result;
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}
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static inline void
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__attribute__ ((__unused__))
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__atomic_add (_Atomic_word* __mem, int __val)
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{
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*__mem += __val;
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}
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static inline int
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__attribute__ ((__unused__))
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__compare_and_swap (long *__p, long __oldval, long __newval)
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{
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if (*__p != __oldval)
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return 0;
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*__p = __newval;
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return 1;
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}
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#endif /* atomicity.h */
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