cxxabi_tweaks.h

00001 // Control various target specific ABI tweaks. Generic version. 00002 00003 // Copyright (C) 2004 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the 00007 // terms of the GNU General Public License as published by the 00008 // Free Software Foundation; either version 2, or (at your option) 00009 // any later version. 00010 00011 // This library is distributed in the hope that it will be useful, 00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 // GNU General Public License for more details. 00015 00016 // You should have received a copy of the GNU General Public License along 00017 // with this library; see the file COPYING. If not, write to the Free 00018 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 00019 // USA. 00020 00021 // As a special exception, you may use this file as part of a free software 00022 // library without restriction. Specifically, if other files instantiate 00023 // templates or use macros or inline functions from this file, or you compile 00024 // this file and link it with other files to produce an executable, this 00025 // file does not by itself cause the resulting executable to be covered by 00026 // the GNU General Public License. This exception does not however 00027 // invalidate any other reasons why the executable file might be covered by 00028 // the GNU General Public License. 00029 00030 #ifndef _CXXABI_TWEAKS_H 00031 #define _CXXABI_TWEAKS_H 1 00032 00033 #ifdef __cplusplus 00034 namespace __cxxabiv1 00035 { 00036 #endif 00037 00038 // The generic ABI uses the first byte of a 64-bit guard variable. 00039 #define _GLIBCXX_GUARD_ACQUIRE(x) (!*(char *) (x)) 00040 #define _GLIBCXX_GUARD_RELEASE(x) *(char *) (x) = 1 00041 __extension__ typedef int __guard __attribute__((mode (__DI__))); 00042 00043 #ifdef __cplusplus 00044 } // namespace __cxxabiv1 00045 #endif 00046 00047 #endif // __cxxabiv1

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