0b058e3cbd
o Standardize on _MACHINE_STDARG_H_ to allow multiple header includes. o Restrict the definition of va_copy() to C99 environments.
93 lines
3.3 KiB
C
93 lines
3.3 KiB
C
/*-
|
|
* Copyright (c) 2002 David E. O'Brien. All rights reserved.
|
|
* Copyright (c) 1991, 1993
|
|
* The Regents of the University of California. 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. 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.
|
|
*
|
|
* @(#)stdarg.h 8.1 (Berkeley) 6/10/93
|
|
* $NetBSD: stdarg.h,v 1.7 1997/04/06 08:47:44 cgd 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(__GNUC__) && (__GNUC__ == 2 && __GNUC_MINOR__ > 95 || __GNUC__ >= 3)
|
|
|
|
#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))
|
|
#endif
|
|
|
|
#define va_end(ap) \
|
|
__builtin_va_end(ap)
|
|
|
|
#else /* ! __GNUC__ post GCC 2.95 */
|
|
|
|
#ifdef __lint__
|
|
#define __builtin_saveregs() (0)
|
|
#define __builtin_classify_type(t) (0)
|
|
#endif
|
|
|
|
#define __va_size(type) \
|
|
(((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long))
|
|
|
|
#define va_start(ap, last) \
|
|
(__builtin_next_arg(last), (ap) = *(va_list *)__builtin_saveregs(), (ap).__pad = 0)
|
|
|
|
#define __REAL_TYPE_CLASS 8
|
|
#define __va_arg_offset(ap, type) \
|
|
((__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS && \
|
|
(ap).__offset <= (6 * 8) ? -(6 * 8) : 0) - __va_size(type))
|
|
|
|
#define va_arg(ap, type) \
|
|
(*(type *)((ap).__offset += __va_size(type), \
|
|
(ap).__base + (ap).__offset + __va_arg_offset(ap, type)))
|
|
|
|
#define va_end(ap) ((void)0)
|
|
|
|
#endif /* __GNUC__ post GCC 2.95 */
|
|
|
|
#endif /* !_MACHINE_STDARG_H_ */
|