stdarg.h revision 121450 
1/*-
2 * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the University nor the names of its contributors
13 *    may be used to endorse or promote products derived from this software
14 *    without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/amd64/include/stdarg.h 121450 2003-10-24 02:50:39Z peter $
29 */
30
31#ifndef _MACHINE_STDARG_H_
32#define	_MACHINE_STDARG_H_
33
34#include <sys/cdefs.h>
35#include <sys/_types.h>
36
37#ifndef _VA_LIST_DECLARED
38#define	_VA_LIST_DECLARED
39typedef	__va_list	va_list;
40#endif
41
42#if defined(__GNUC__)
43#define	va_start(ap, last) \
44	__builtin_stdarg_start((ap), (last))
45
46#define	va_arg(ap, type) \
47	__builtin_va_arg((ap), type)
48
49#define	__va_copy(dest, src) \
50	__builtin_va_copy((dest), (src))
51
52#if __ISO_C_VISIBLE >= 1999
53#define	va_copy(dest, src) \
54	__va_copy(dest, src)
55#endif
56
57#define	va_end(ap) \
58	__builtin_va_end(ap)
59
60#elif defined(lint)
61/* Provide a fake implementation for lint's benefit */
62#define	__va_size(type) \
63	(((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long))
64#define	va_start(ap, last) \
65	((ap) = (va_list)&(last) + __va_size(last))
66#define	va_arg(ap, type) \
67	(*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
68#define	va_end(ap)
69
70#endif
71
72#endif /* !_MACHINE_STDARG_H_ */
73