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