1 /*- 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)stdarg.h 8.1 (Berkeley) 6/10/93 30 * $FreeBSD: src/sys/i386/include/stdarg.h,v 1.10 1999年08月28日 00:44:26 peter Exp $ 31 */ 32 33#ifndef _CPU_STDARG_H_ 34#define _CPU_STDARG_H_ 35 36 /* 37 * GNUC mess 38 */ 39#if defined(__GNUC__) 40 typedef __builtin_va_list __va_list; /* internally known to gcc */ 41#else 42 typedef char * __va_list; 43#endif /* post GCC 2.95 */ 44#if defined __GNUC__ && !defined(__GNUC_VA_LIST) && !defined(__NO_GNUC_VA_LIST) 45#define __GNUC_VA_LIST 46 typedef __va_list __gnuc_va_list; /* compatibility w/GNU headers*/ 47#endif 48 49 /* 50 * Standard va types and macros 51 */ 52 53#ifdef __GNUC__ 54 55#define __va_start(ap, last) \ 56 __builtin_va_start(ap, last) 57#define __va_arg(ap, type) \ 58 __builtin_va_arg((ap), type) 59#define ___va_copy(dest, src) \ 60 __builtin_va_copy((dest), (src)) 61#define __va_end(ap) \ 62 __builtin_va_end(ap) 63 64#else /* !__GNUC__ */ 65 66 /* Provide a free-standing implementation */ 67#define __va_size(type) \ 68 (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int)) 69#define __va_start(ap, last) \ 70 ((ap) = (__va_list)&(last) + __va_size(last)) 71#define __va_arg(ap, type) \ 72 (*(type *)((ap) += __va_size(type), (ap) - __va_size(type))) 73 /* This assumes a typical stack machine */ 74#define ___va_copy(dest, src) \ 75 ((void)((dest) = (src))) 76#define __va_end(ap) 77 78#endif /* __GNUC__ */ 79 80#endif /* !_CPU_STDARG_H_ */ 81