a5f50ef9e4
place. This moves the dependency on GCC's and other compiler's features into the central sys/cdefs.h file, while the individual source files can then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42. By now, GCC and ICC (the Intel compiler) have been actively tested on IA32 platforms by netchild. Extension to other compilers is supposed to be possible, of course. Submitted by: netchild Reviewed by: various developers on arch@, some time ago
92 lines
3.5 KiB
C
92 lines
3.5 KiB
C
/*-
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* Copyright (c) 2002 David E. O'Brien. All rights reserved.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)varargs.h 8.3 (Berkeley) 3/22/94
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* $FreeBSD$
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*/
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#ifndef _MACHINE_VARARGS_H_
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#define _MACHINE_VARARGS_H_
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#ifndef _SYS_CDEFS_H_
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#error this file needs sys/cdefs.h as a prerequisite
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#endif
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#ifdef __GNUCLIKE_BUILTIN_VARARGS
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#include <sys/_types.h>
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#ifndef _VA_LIST_DECLARED
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#define _VA_LIST_DECLARED
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typedef __va_list va_list;
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#endif
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typedef int __builtin_va_alist_t __attribute__((__mode__(__word__)));
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#define va_alist __builtin_va_alist
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#define va_dcl __builtin_va_alist_t __builtin_va_alist; ...
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#define va_start(ap) __builtin_varargs_start(ap)
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#define va_arg(ap, type) __builtin_va_arg((ap), type)
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#define va_end(ap) __builtin_va_end(ap)
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#else /* !__GNUCLIKE_BUILTIN_VARARGS */
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#include <machine/stdarg.h>
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#define __va_ellipsis ...
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#define va_alist __builtin_va_alist
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#define va_dcl long __builtin_va_alist; __va_ellipsis
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#undef va_start
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#define va_start(ap) \
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((ap) = (va_list)__builtin_saveregs())
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#endif /* __GNUCLIKE_BUILTIN_VARARGS */
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#endif /* !_MACHINE_VARARGS_H_ */
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