X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fx86_64-linux-gnu%2Fc%2B%2B%2F4.7%2F32%2Fbits%2Fatomic_word.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fx86_64-linux-gnu%2Fc%2B%2B%2F4.7%2F32%2Fbits%2Fatomic_word.h;h=f2bdbbc9675f4fed1b3a109d0da506af13e0aba8;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/c++/4.7/32/bits/atomic_word.h b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/c++/4.7/32/bits/atomic_word.h new file mode 100644 index 0000000..f2bdbbc --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/c++/4.7/32/bits/atomic_word.h @@ -0,0 +1,47 @@ +// Low-level type for atomic operations -*- C++ -*- + +// Copyright (C) 2004, 2009 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 3, 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. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file atomic_word.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_ATOMIC_WORD_H +#define _GLIBCXX_ATOMIC_WORD_H 1 + +typedef int _Atomic_word; + +// Define these two macros using the appropriate memory barrier for the target. +// The commented out versions below are the defaults. +// See ia64/atomic_word.h for an alternative approach. + +// This one prevents loads from being hoisted across the barrier; +// in other words, this is a Load-Load acquire barrier. +// This is necessary iff TARGET_RELAXED_ORDERING is defined in tm.h. +// #define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory") + +// This one prevents stores from being sunk across the barrier; in other +// words, a Store-Store release barrier. +// #define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory") + +#endif