1/*-
2 * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
3 * Copyright (c) 1991, 1993
4 *	The Regents of the University of California.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 4. Neither the name of the University nor the names of its contributors
15 *    may be used to endorse or promote products derived from this software
16 *    without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 *	@(#)stdarg.h	8.1 (Berkeley) 6/10/93
31 * $FreeBSD$
32 */
33
34#ifndef _MACHINE_STDARG_H_
35#define	_MACHINE_STDARG_H_
36
37#include <sys/cdefs.h>
38#include <sys/_types.h>
39
40#ifndef _VA_LIST_DECLARED
41#define	_VA_LIST_DECLARED
42typedef	__va_list	va_list;
43#endif
44
45#ifdef __GNUCLIKE_BUILTIN_STDARG
46
47#define	va_start(ap, last) \
48	__builtin_va_start((ap), (last))
49
50#define	va_arg(ap, type) \
51	__builtin_va_arg((ap), type)
52
53#if __ISO_C_VISIBLE >= 1999
54#define	va_copy(dest, src) \
55	__builtin_va_copy((dest), (src))
56#endif
57
58#define	va_end(ap) \
59	__builtin_va_end(ap)
60
61#else	/* !__GNUCLIKE_BUILTIN_STDARG */
62
63#define	__va_size(type) \
64	(((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
65
66#ifdef __GNUCLIKE_BUILTIN_NEXT_ARG
67#define va_start(ap, last) \
68	((ap) = (va_list)__builtin_next_arg(last))
69#else	/* !__GNUCLIKE_BUILTIN_NEXT_ARG */
70#define	va_start(ap, last) \
71	((ap) = (va_list)&(last) + __va_size(last))
72#endif	/* __GNUCLIKE_BUILTIN_NEXT_ARG */
73
74#define	va_arg(ap, type) \
75	(*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
76
77#define	va_end(ap)
78
79#endif /* __GNUCLIKE_BUILTIN_STDARG */
80
81#endif /* !_MACHINE_STDARG_H_ */
82