1/*- 2 * Copyright (c) 2002 David E. O'Brien. All rights reserved. 3 * Copyright (c) 2000 Tsubai Masanari. 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. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $NetBSD: stdarg.h,v 1.5 2000/02/27 17:50:21 tsubai Exp $ 28 * $FreeBSD: releng/10.3/sys/powerpc/include/stdarg.h 162487 2006-09-21 01:37:02Z kan $ 29 */ 30 31#ifndef _MACHINE_STDARG_H_ 32#define _MACHINE_STDARG_H_ 33 34#include <sys/cdefs.h> 35#include <sys/_types.h> 36 37#ifndef _VA_LIST_DECLARED 38#define _VA_LIST_DECLARED 39typedef __va_list va_list; 40#endif 41 42#if defined(__GNUCLIKE_BUILTIN_STDARG) 43 44#define va_start(ap, last) \ 45 __builtin_va_start((ap), (last)) 46 47#define va_arg(ap, type) \ 48 __builtin_va_arg((ap), type) 49 50#if __ISO_C_VISIBLE >= 1999 51#define va_copy(dest, src) \ 52 __builtin_va_copy((dest), (src)) 53 54#define __va_copy(dest, src) \ 55 va_copy((dest), (src)) 56#endif 57 58#define va_end(ap) \ 59 __builtin_va_end(ap) 60 61#else /* !__GNUCLIKE_BUILTIN_STDARG */ 62 63#ifdef __lint__ 64 65#define va_start(ap, last) ((ap) = *(va_list *)0) 66#define va_arg(ap, type) (*(type *)(void *)&(ap)) 67 68#else 69 70#if defined(__GNUC_VA_LIST_COMPATIBILITY) 71#define va_start(ap, last) \ 72 (__builtin_next_arg(last), \ 73 __builtin_memcpy((void *)&(ap), __builtin_saveregs (), \ 74 sizeof(__gnuc_va_list))) 75#else 76#define va_start(ap, last) \ 77 (__builtin_next_arg(last), \ 78 (ap).__stack = __va_stack_args, \ 79 (ap).__base = __va_reg_args, \ 80 (ap).__gpr = __va_first_gpr, \ 81 (ap).__fpr = __va_first_fpr) 82#endif 83 84#define __va_first_gpr (__builtin_args_info(0)) 85#define __va_first_fpr (__builtin_args_info(1) - 32 - 1) 86#define __va_stack_args \ 87 ((char *)__builtin_saveregs() + \ 88 (__va_first_gpr >= 8 ? __va_first_gpr - 8 : 0) * sizeof(int)) 89#define __va_reg_args \ 90 ((char *)__builtin_frame_address(0) + __builtin_args_info(4)) 91 92#define __INTEGER_TYPE_CLASS 1 93#define __REAL_TYPE_CLASS 8 94#define __RECORD_TYPE_CLASS 12 95 96#define __va_longlong(type) \ 97 (__builtin_classify_type(*(type *)0) == __INTEGER_TYPE_CLASS && \ 98 sizeof(type) == 8) 99 100#define __va_double(type) \ 101 (__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS) 102 103#define __va_struct(type) \ 104 (__builtin_classify_type(*(type *)0) >= __RECORD_TYPE_CLASS) 105 106#define __va_size(type) \ 107 ((sizeof(type) + sizeof(int) - 1) / sizeof(int) * sizeof(int)) 108 109#define __va_savedgpr(ap, type) \ 110 ((ap).__base + (ap).__gpr * sizeof(int) - sizeof(type)) 111 112#define __va_savedfpr(ap, type) \ 113 ((ap).__base + 8 * sizeof(int) + (ap).__fpr * sizeof(double) - \ 114 sizeof(type)) 115 116#define __va_stack(ap, type) \ 117 ((ap).__stack += __va_size(type) + \ 118 (__va_longlong(type) ? (int)(ap).__stack & 4 : 0), \ 119 (ap).__stack - sizeof(type)) 120 121#define __va_gpr(ap, type) \ 122 ((ap).__gpr += __va_size(type) / sizeof(int) + \ 123 (__va_longlong(type) ? (ap).__gpr & 1 : 0), \ 124 (ap).__gpr <= 8 ? __va_savedgpr(ap, type) : __va_stack(ap, type)) 125 126#define __va_fpr(ap, type) \ 127 ((ap).__fpr++, \ 128 (ap).__fpr <= 8 ? __va_savedfpr(ap, type) : __va_stack(ap, type)) 129 130#define va_arg(ap, type) \ 131 (*(type *)(__va_struct(type) ? (*(void **)__va_gpr(ap, void *)) : \ 132 __va_double(type) ? __va_fpr(ap, type) : \ 133 __va_gpr(ap, type))) 134 135#endif /* __lint__ */ 136 137#define va_end(ap) 138 139#if __ISO_C_VISIBLE >= 1999 140#if !defined(_ANSI_SOURCE) && \ 141 (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \ 142 defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L) 143#define va_copy(dest, src) \ 144 ((dest) = (src)) 145#endif 146#endif 147 148#endif /* __GNUCLIKE_BUILTIN_STDARG */ 149 150#endif /* _MACHINE_STDARG_H_ */ 151