NetBSD/sys/arch/powerpc/include/varargs.h

56 lines
2.2 KiB
C

/* $NetBSD: varargs.h,v 1.8 2002/10/25 20:46:44 thorpej Exp $ */
/*-
* 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.
*/
#ifndef _POWERPC_VARARGS_H_
#define _POWERPC_VARARGS_H_
#include <machine/stdarg.h>
#define va_alist __builtin_va_alist
#define va_dcl int va_alist; ...
#undef va_start
#ifdef __lint__
#define va_start(ap) ((ap) = *(va_list *)0)
#elif __GNUC_PREREQ__(3, 0)
#define va_start(ap) __builtin_varargs_start((ap))
#elif __GNUC_PREREQ__(2, 95)
#define va_start(ap) ((ap) = *(va_list *)__builtin_saveregs())
#undef va_alist
#define va_alist __va_1st_arg
#else
#define va_start(ap) \
((ap).__stack = __va_stack_args, \
(ap).__base = __va_reg_args, \
(ap).__gpr = __va_first_gpr, \
(ap).__fpr = __va_first_fpr)
#endif
#endif /* _POWERPC_VARARGS_H_ */