1/* This file is automatically generated.  DO NOT EDIT! */
2/* Generated from: 	NetBSD: mknative-gcc,v 1.55 2011/06/30 07:16:59 mrg 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.  Generic 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
37namespace __cxxabiv1
38{
39  extern "C"
40  {
41#endif
42
43  // The generic ABI uses the first byte of a 64-bit guard variable.
44#define _GLIBCXX_GUARD_TEST(x) (*(char *) (x) != 0)
45#define _GLIBCXX_GUARD_SET(x) *(char *) (x) = 1
46#define _GLIBCXX_GUARD_BIT __guard_test_bit (0, 1)
47#define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1)
48#define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1)
49  __extension__ typedef int __guard __attribute__((mode (__DI__)));
50
51  // __cxa_vec_ctor has void return type.
52  typedef void __cxa_vec_ctor_return_type;
53#define _GLIBCXX_CXA_VEC_CTOR_RETURN(x) return
54  // Constructors and destructors do not return a value.
55  typedef void __cxa_cdtor_return_type;
56
57#ifdef __cplusplus
58  }
59} // namespace __cxxabiv1
60#endif
61
62#endif
63