URL
https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [config/] [cpu/] [arm/] [cxxabi_tweaks.h] - Rev 516
Compare with Previous | Blame | View Log
// Control various target specific ABI tweaks. ARM version. // Copyright (C) 2004, 2006, 2008, 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 // <http://www.gnu.org/licenses/>. /** @file cxxabi_tweaks.h * The header provides an CPU-variable interface to the C++ ABI. */ #ifndef _CXXABI_TWEAKS_H #define _CXXABI_TWEAKS_H 1 #ifdef __cplusplus namespace __cxxabiv1 { extern "C" { #endif #ifdef __ARM_EABI__ // The ARM EABI uses the least significant bit of a 32-bit // guard variable. */ #define _GLIBCXX_GUARD_TEST(x) ((*(x) & 1) != 0) #define _GLIBCXX_GUARD_SET(x) *(x) = 1 #define _GLIBCXX_GUARD_BIT 1 #define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) #define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) typedef int __guard; // We also want the element size in array cookies. #define _GLIBCXX_ELTSIZE_IN_COOKIE 1 // __cxa_vec_ctor should return a pointer to the array. typedef void * __cxa_vec_ctor_return_type; #define _GLIBCXX_CXA_VEC_CTOR_RETURN(x) return x // Constructors and destructors return the "this" pointer. typedef void * __cxa_cdtor_return_type; #else // __ARM_EABI__ // 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; #endif //!__ARM_EABI__ #ifdef __cplusplus } } // namespace __cxxabiv1 #endif #endif