1/* This file is automatically generated. DO NOT EDIT! */ 2/* Generated from: NetBSD: mknative-gcc,v 1.113 2021/04/11 01:44:14 mrg Exp */ 3/* Generated from: NetBSD: mknative.common,v 1.16 2018/04/15 15:13:37 christos Exp */ 4 5// Control various target specific ABI tweaks. Generic version. 6 7// Copyright (C) 2004-2020 Free Software Foundation, Inc. 8// 9// This file is part of the GNU ISO C++ Library. This library is free 10// software; you can redistribute it and/or modify it under the 11// terms of the GNU General Public License as published by the 12// Free Software Foundation; either version 3, or (at your option) 13// any later version. 14 15// This library is distributed in the hope that it will be useful, 16// but WITHOUT ANY WARRANTY; without even the implied warranty of 17// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18// GNU General Public License for more details. 19 20// Under Section 7 of GPL version 3, you are granted additional 21// permissions described in the GCC Runtime Library Exception, version 22// 3.1, as published by the Free Software Foundation. 23 24// You should have received a copy of the GNU General Public License and 25// a copy of the GCC Runtime Library Exception along with this program; 26// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 27// <http://www.gnu.org/licenses/>. 28 29/** @file bits/cxxabi_tweaks.h 30 * This is an internal header file, included by other library headers. 31 * Do not attempt to use it directly. @headername{cxxabi.h} 32 */ 33 34#ifndef _CXXABI_TWEAKS_H 35#define _CXXABI_TWEAKS_H 1 36 37#ifdef __cplusplus 38namespace __cxxabiv1 39{ 40 extern "C" 41 { 42#endif 43 44 // The generic ABI uses the first byte of a 64-bit guard variable. 45#define _GLIBCXX_GUARD_TEST(x) (*(char *) (x) != 0) 46#define _GLIBCXX_GUARD_SET(x) *(char *) (x) = 1 47#define _GLIBCXX_GUARD_BIT __guard_test_bit (0, 1) 48#define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) 49#define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) 50 __extension__ typedef int __guard __attribute__((mode (__DI__))); 51 52 // __cxa_vec_ctor has void return type. 53 typedef void __cxa_vec_ctor_return_type; 54#define _GLIBCXX_CXA_VEC_CTOR_RETURN(x) return 55 // Constructors and destructors do not return a value. 56 typedef void __cxa_cdtor_return_type; 57 58#ifdef __cplusplus 59 } 60} // namespace __cxxabiv1 61#endif 62 63#endif 64