1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2002 David E. O'Brien. All rights reserved. 5 * Copyright (c) 1991, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)stdarg.h 8.1 (Berkeley) 6/10/93 33 * $FreeBSD$ 34 */ 35 36 #ifndef _MACHINE_STDARG_H_ 37 #define _MACHINE_STDARG_H_ 38 39 #include <sys/cdefs.h> 40 #include <sys/_types.h> 41 42 #ifndef _VA_LIST_DECLARED 43 #define _VA_LIST_DECLARED 44 typedef __va_list va_list; 45 #endif 46 47 #ifdef __GNUCLIKE_BUILTIN_STDARG 48 49 #define va_start(ap, last) \ 50 __builtin_va_start((ap), (last)) 51 52 #define va_arg(ap, type) \ 53 __builtin_va_arg((ap), type) 54 55 #if __ISO_C_VISIBLE >= 1999 56 #define va_copy(dest, src) \ 57 __builtin_va_copy((dest), (src)) 58 #endif 59 60 #define va_end(ap) \ 61 __builtin_va_end(ap) 62 63 #else /* !__GNUCLIKE_BUILTIN_STDARG */ 64 65 #define __va_size(type) \ 66 (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int)) 67 68 #ifdef __GNUCLIKE_BUILTIN_NEXT_ARG 69 #define va_start(ap, last) \ 70 ((ap) = (va_list)__builtin_next_arg(last)) 71 #else /* !__GNUCLIKE_BUILTIN_NEXT_ARG */ 72 #define va_start(ap, last) \ 73 ((ap) = (va_list)&(last) + __va_size(last)) 74 #endif /* __GNUCLIKE_BUILTIN_NEXT_ARG */ 75 76 #define va_arg(ap, type) \ 77 (*(type *)((ap) += __va_size(type), (ap) - __va_size(type))) 78 79 #define va_end(ap) 80 81 #endif /* __GNUCLIKE_BUILTIN_STDARG */ 82 83 #endif /* !_MACHINE_STDARG_H_ */ 84