1 /* This file is automatically generated. DO NOT EDIT! */ 2 /* Generated from: NetBSD: mknative-gcc,v 1.68 2012/09/25 06:55:10 skrll Exp */ 3 /* Generated from: NetBSD: mknative.common,v 1.9 2007/02/05 18:26:01 apb Exp */ 4 5 // Control various target specific ABI tweaks. ARM version. 6 7 // Copyright (C) 2004, 2006, 2008, 2009 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 cxxabi_tweaks.h 30 * The header provides an CPU-variable interface to the C++ ABI. 31 */ 32 33 #ifndef _CXXABI_TWEAKS_H 34 #define _CXXABI_TWEAKS_H 1 35 36 #ifdef __cplusplus 37 namespace __cxxabiv1 38 { 39 extern "C" 40 { 41 #endif 42 43 #ifdef __ARM_EABI__ 44 // The ARM EABI uses the least significant bit of a 32-bit 45 // guard variable. */ 46 #define _GLIBCXX_GUARD_TEST(x) ((*(x) & 1) != 0) 47 #define _GLIBCXX_GUARD_SET(x) *(x) = 1 48 #define _GLIBCXX_GUARD_BIT 1 49 #define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) 50 #define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) 51 typedef int __guard; 52 53 // We also want the element size in array cookies. 54 #define _GLIBCXX_ELTSIZE_IN_COOKIE 1 55 56 // __cxa_vec_ctor should return a pointer to the array. 57 typedef void * __cxa_vec_ctor_return_type; 58 #define _GLIBCXX_CXA_VEC_CTOR_RETURN(x) return x 59 // Constructors and destructors return the "this" pointer. 60 typedef void * __cxa_cdtor_return_type; 61 62 #else // __ARM_EABI__ 63 64 // The generic ABI uses the first byte of a 64-bit guard variable. 65 #define _GLIBCXX_GUARD_TEST(x) (*(char *) (x) != 0) 66 #define _GLIBCXX_GUARD_SET(x) *(char *) (x) = 1 67 #define _GLIBCXX_GUARD_BIT __guard_test_bit (0, 1) 68 #define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) 69 #define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) 70 __extension__ typedef int __guard __attribute__((mode (__DI__))); 71 72 // __cxa_vec_ctor has void return type. 73 typedef void __cxa_vec_ctor_return_type; 74 #define _GLIBCXX_CXA_VEC_CTOR_RETURN(x) return 75 // Constructors and destructors do not return a value. 76 typedef void __cxa_cdtor_return_type; 77 78 #endif //!__ARM_EABI__ 79 80 #ifdef __cplusplus 81 } 82 } // namespace __cxxabiv1 83 #endif 84 85 #endif 86