| // Control various target specific ABI tweaks. Generic version. |
| |
| // Copyright (C) 2004, 2006, 2008, 2009, 2011 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 |
| // <http://www.gnu.org/licenses/>. |
| |
| /** @file bits/cxxabi_tweaks.h |
| * This is an internal header file, included by other library headers. |
| * Do not attempt to use it directly. @headername{cxxabi.h} |
| */ |
| |
| #ifndef _CXXABI_TWEAKS_H |
| #define _CXXABI_TWEAKS_H 1 |
| |
| #ifdef __cplusplus |
| namespace __cxxabiv1 |
| { |
| extern "C" |
| { |
| #endif |
| |
| // The generic ABI uses the first byte of a 64-bit guard variable. |
| #define _GLIBCXX_GUARD_TEST(x) (*(char *) (x) != 0) |
| #define _GLIBCXX_GUARD_SET(x) *(char *) (x) = 1 |
| #define _GLIBCXX_GUARD_BIT __guard_test_bit (0, 1) |
| #define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) |
| #define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) |
| __extension__ typedef int __guard __attribute__((mode (__DI__))); |
| |
| // __cxa_vec_ctor has void return type. |
| typedef void __cxa_vec_ctor_return_type; |
| #define _GLIBCXX_CXA_VEC_CTOR_RETURN(x) return |
| // Constructors and destructors do not return a value. |
| typedef void __cxa_cdtor_return_type; |
| |
| #ifdef __cplusplus |
| } |
| } // namespace __cxxabiv1 |
| #endif |
| |
| #endif |
