2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2002 David E. O'Brien. All rights reserved.
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 * (c) UNIX System Laboratories, Inc.
8 * All or some portions of this file are derived from material licensed
9 * to the University of California by American Telephone and Telegraph
10 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
11 * the permission of UNIX System Laboratories, Inc.
13 * This software was developed by the Computer Systems Engineering group
14 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
15 * contributed to Berkeley.
17 * All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Lawrence Berkeley Laboratory.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the above copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. Neither the name of the University nor the names of its contributors
31 * may be used to endorse or promote products derived from this software
32 * without specific prior written permission.
34 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
35 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * @(#)varargs.h 8.3 (Berkeley) 3/22/94
50 #ifndef _MACHINE_VARARGS_H_
51 #define _MACHINE_VARARGS_H_
54 #error this file needs sys/cdefs.h as a prerequisite
57 #ifdef __GNUCLIKE_BUILTIN_VARARGS
59 #include <sys/_types.h>
61 #ifndef _VA_LIST_DECLARED
62 #define _VA_LIST_DECLARED
63 typedef __va_list va_list;
66 typedef int __builtin_va_alist_t __attribute__((__mode__(__word__)));
68 #define va_alist __builtin_va_alist
69 #define va_dcl __builtin_va_alist_t __builtin_va_alist; ...
70 #define va_start(ap) __builtin_varargs_start(ap)
71 #define va_arg(ap, type) __builtin_va_arg((ap), type)
72 #define va_end(ap) __builtin_va_end(ap)
74 #else /* !__GNUCLIKE_BUILTIN_VARARGS */
76 #include <machine/stdarg.h>
78 #define __va_ellipsis ...
80 #define va_alist __builtin_va_alist
81 #define va_dcl long __builtin_va_alist; __va_ellipsis
84 #define va_start(ap) \
85 ((ap) = (va_list)__builtin_saveregs())
87 #endif /* __GNUCLIKE_BUILTIN_VARARGS */
89 #endif /* !_MACHINE_VARARGS_H_ */