| // Control various target specific ABI tweaks. ARM version. |
| |
| // Copyright (C) 2004 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 2, 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. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| // USA. |
| |
| // As a special exception, you may use this file as part of a free software |
| // library without restriction. Specifically, if other files instantiate |
| // templates or use macros or inline functions from this file, or you compile |
| // this file and link it with other files to produce an executable, this |
| // file does not by itself cause the resulting executable to be covered by |
| // the GNU General Public License. This exception does not however |
| // invalidate any other reasons why the executable file might be covered by |
| // the GNU General Public License. |
| |
| #ifndef _CXXABI_TWEAKS_H |
| #define _CXXABI_TWEAKS_H 1 |
| |
| #ifdef __cplusplus |
| namespace __cxxabiv1 |
| { |
| #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 |
| 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 |
| __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 // __cxxabiv1 |