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/* $NetBSD: varargs.h,v 1.2 1995/02/16 03:08:11 cgd Exp $ */
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)varargs.h 8.2 (Berkeley) 3/22/94
*/
#ifndef _VARARGS_H_
#define _VARARGS_H_
#include <machine/ansi.h>
typedef _BSD_VA_LIST_ va_list;
/*
* Note that these macros are significantly different than the 'standard'
* ones. On the alpha, all arguments are passed as 64 bit quantities.
*/
#define va_alist __builtin_va_alist
#define va_dcl va_list __builtin_va_alist; ...
#define va_start(a) \
((a) = *(va_list *)__builtin_saveregs())
#define __va_size(type) \
(((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long))
#define __REAL_TYPE_CLASS 8
#define __va_arg_offset(a, type) \
((__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS && \
(a).offset <= (6 * 8) ? -(6 * 8) : 0) - __va_size(type))
#define va_arg(a, type) \
(*((a).offset += __va_size(type), \
(type *)((a).base + (a).offset + __va_arg_offset(a, type))))
#define va_end(a) ((void) 0)
#endif /* !_VARARGS_H_ */
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