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Diffstat (limited to 'config/cpu/s390/atomicity.h')
-rw-r--r-- | config/cpu/s390/atomicity.h | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/config/cpu/s390/atomicity.h b/config/cpu/s390/atomicity.h deleted file mode 100644 index 5d2b3b9..0000000 --- a/config/cpu/s390/atomicity.h +++ /dev/null @@ -1,60 +0,0 @@ -// Low-level functions for atomic operations: S/390 version -*- C++ -*- - -// Copyright (C) 2001, 2003 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 -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 2, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// You should have received a copy of the GNU General Public License along -// with this library; see the file COPYING. If not, write to the Free -// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, -// USA. - -// As a special exception, you may use this file as part of a free software -// library without restriction. Specifically, if other files instantiate -// templates or use macros or inline functions from this file, or you compile -// this file and link it with other files to produce an executable, this -// file does not by itself cause the resulting executable to be covered by -// the GNU General Public License. This exception does not however -// invalidate any other reasons why the executable file might be covered by -// the GNU General Public License. - -#ifndef _GLIBCXX_ATOMICITY_H -#define _GLIBCXX_ATOMICITY_H 1 - -typedef int _Atomic_word; - -static inline _Atomic_word -__attribute__ ((__unused__)) -__exchange_and_add (volatile _Atomic_word* __mem, int __val) -{ - register _Atomic_word __old_val, __new_val; - - __asm__ __volatile__ (" l %0,0(%3)\n" - "0: lr %1,%0\n" - " ar %1,%4\n" - " cs %0,%1,0(%3)\n" - " jl 0b" - : "=&d" (__old_val), "=&d" (__new_val), "=m" (*__mem) - : "a" (__mem), "d" (__val), "m" (*__mem) : "cc"); - return __old_val; -} - -static inline void -__attribute__ ((__unused__)) -__atomic_add (volatile _Atomic_word* __mem, int __val) -{ - __exchange_and_add (__mem, __val); -} - -#endif /* atomicity.h */ - - |