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/*-
* Copyright (c) 2002 David E. O'Brien. All rights reserved.
* Copyright (c) 2000 Tsubai Masanari. All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $NetBSD: stdarg.h,v 1.5 2000/02/27 17:50:21 tsubai Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_STDARG_H_
#define _MACHINE_STDARG_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
#ifndef _VA_LIST_DECLARED
#define _VA_LIST_DECLARED
typedef __va_list va_list;
#endif
#if defined(__GNUCLIKE_BUILTIN_STDARG)
#define va_start(ap, last) \
__builtin_stdarg_start((ap), (last))
#define va_arg(ap, type) \
__builtin_va_arg((ap), type)
#if __ISO_C_VISIBLE >= 1999
#define va_copy(dest, src) \
__builtin_va_copy((dest), (src))
#define __va_copy(dest, src) \
va_copy((dest), (src))
#endif
#define va_end(ap) \
__builtin_va_end(ap)
#else /* !__GNUCLIKE_BUILTIN_STDARG */
#ifdef __lint__
#define va_start(ap, last) ((ap) = *(va_list *)0)
#define va_arg(ap, type) (*(type *)(void *)&(ap))
#else
#if defined(__GNUC_VA_LIST_COMPATIBILITY)
#define va_start(ap, last) \
(__builtin_next_arg(last), \
__builtin_memcpy((void *)&(ap), __builtin_saveregs (), \
sizeof(__gnuc_va_list)))
#else
#define va_start(ap, last) \
(__builtin_next_arg(last), \
(ap).__stack = __va_stack_args, \
(ap).__base = __va_reg_args, \
(ap).__gpr = __va_first_gpr, \
(ap).__fpr = __va_first_fpr)
#endif
#define __va_first_gpr (__builtin_args_info(0))
#define __va_first_fpr (__builtin_args_info(1) - 32 - 1)
#define __va_stack_args \
((char *)__builtin_saveregs() + \
(__va_first_gpr >= 8 ? __va_first_gpr - 8 : 0) * sizeof(int))
#define __va_reg_args \
((char *)__builtin_frame_address(0) + __builtin_args_info(4))
#define __INTEGER_TYPE_CLASS 1
#define __REAL_TYPE_CLASS 8
#define __RECORD_TYPE_CLASS 12
#define __va_longlong(type) \
(__builtin_classify_type(*(type *)0) == __INTEGER_TYPE_CLASS && \
sizeof(type) == 8)
#define __va_double(type) \
(__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS)
#define __va_struct(type) \
(__builtin_classify_type(*(type *)0) >= __RECORD_TYPE_CLASS)
#define __va_size(type) \
((sizeof(type) + sizeof(int) - 1) / sizeof(int) * sizeof(int))
#define __va_savedgpr(ap, type) \
((ap).__base + (ap).__gpr * sizeof(int) - sizeof(type))
#define __va_savedfpr(ap, type) \
((ap).__base + 8 * sizeof(int) + (ap).__fpr * sizeof(double) - \
sizeof(type))
#define __va_stack(ap, type) \
((ap).__stack += __va_size(type) + \
(__va_longlong(type) ? (int)(ap).__stack & 4 : 0), \
(ap).__stack - sizeof(type))
#define __va_gpr(ap, type) \
((ap).__gpr += __va_size(type) / sizeof(int) + \
(__va_longlong(type) ? (ap).__gpr & 1 : 0), \
(ap).__gpr <= 8 ? __va_savedgpr(ap, type) : __va_stack(ap, type))
#define __va_fpr(ap, type) \
((ap).__fpr++, \
(ap).__fpr <= 8 ? __va_savedfpr(ap, type) : __va_stack(ap, type))
#define va_arg(ap, type) \
(*(type *)(__va_struct(type) ? (*(void **)__va_gpr(ap, void *)) : \
__va_double(type) ? __va_fpr(ap, type) : \
__va_gpr(ap, type)))
#endif /* __lint__ */
#define va_end(ap)
#if __ISO_C_VISIBLE >= 1999
#if !defined(_ANSI_SOURCE) && \
(!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \
defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L)
#define va_copy(dest, src) \
((dest) = (src))
#endif
#endif
#endif /* __GNUCLIKE_BUILTIN_STDARG */
#endif /* _MACHINE_STDARG_H_ */
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