stdarg.h revision 102227
177957Sbenno/*- 296318Sobrien * Copyright (c) 2002 David E. O'Brien. All rights reserved. 377957Sbenno * Copyright (c) 2000 Tsubai Masanari. All rights reserved. 477957Sbenno * 577957Sbenno * Redistribution and use in source and binary forms, with or without 677957Sbenno * modification, are permitted provided that the following conditions 777957Sbenno * are met: 877957Sbenno * 1. Redistributions of source code must retain the above copyright 977957Sbenno * notice, this list of conditions and the following disclaimer. 1077957Sbenno * 2. Redistributions in binary form must reproduce the above copyright 1177957Sbenno * notice, this list of conditions and the following disclaimer in the 1277957Sbenno * documentation and/or other materials provided with the distribution. 1377957Sbenno * 3. The name of the author may not be used to endorse or promote products 1477957Sbenno * derived from this software without specific prior written permission. 1577957Sbenno * 1677957Sbenno * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1777957Sbenno * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1877957Sbenno * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1977957Sbenno * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2077957Sbenno * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2177957Sbenno * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2277957Sbenno * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2377957Sbenno * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2477957Sbenno * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2577957Sbenno * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2677957Sbenno * 2777957Sbenno * $NetBSD: stdarg.h,v 1.5 2000/02/27 17:50:21 tsubai Exp $ 2877957Sbenno * $FreeBSD: head/sys/powerpc/include/stdarg.h 102227 2002-08-21 16:20:02Z mike $ 2977957Sbenno */ 3077957Sbenno 3177957Sbenno#ifndef _POWERPC_STDARG_H_ 3277957Sbenno#define _POWERPC_STDARG_H_ 3377957Sbenno 34102227Smike#include <sys/_types.h> 3577957Sbenno 36102227Smiketypedef __va_list va_list; 3777957Sbenno 3896318Sobrien#if defined(__GNUC__) && (__GNUC__ == 2 && __GNUC_MINOR__ > 95 || __GNUC__ >= 3) 3996318Sobrien 4096318Sobrien#define va_start(ap, last) \ 4196318Sobrien __builtin_stdarg_start((ap), (last)) 4296318Sobrien 4396318Sobrien#define va_arg(ap, type) \ 4496318Sobrien __builtin_va_arg((ap), type) 4596318Sobrien 4696318Sobrien#define va_end(ap) \ 4796318Sobrien __builtin_va_end(ap) 4896318Sobrien 4996318Sobrien#else /* ! __GNUC__ post GCC 2.95 */ 5096318Sobrien 5177957Sbenno#ifdef __lint__ 5277957Sbenno 5377957Sbenno#define va_start(ap, last) ((ap) = *(va_list *)0) 5477957Sbenno#define va_arg(ap, type) (*(type *)(void *)&(ap)) 5577957Sbenno 5677957Sbenno#else 5777957Sbenno 5885169Smp#if defined(__GNUC__) && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 95) 5977957Sbenno#define va_start(ap, last) \ 6077957Sbenno (__builtin_next_arg(last), \ 6185169Smp __builtin_memcpy((void *)&(ap), __builtin_saveregs (), \ 6285169Smp sizeof(__gnuc_va_list))) 6385113Smp#else 6485113Smp#define va_start(ap, last) \ 6585113Smp (__builtin_next_arg(last), \ 6677957Sbenno (ap).__stack = __va_stack_args, \ 6777957Sbenno (ap).__base = __va_reg_args, \ 6877957Sbenno (ap).__gpr = __va_first_gpr, \ 6977957Sbenno (ap).__fpr = __va_first_fpr) 7085113Smp#endif 7177957Sbenno 7277957Sbenno#define __va_first_gpr (__builtin_args_info(0)) 7377957Sbenno#define __va_first_fpr (__builtin_args_info(1) - 32 - 1) 7477957Sbenno#define __va_stack_args \ 7577957Sbenno ((char *)__builtin_saveregs() + \ 7677957Sbenno (__va_first_gpr >= 8 ? __va_first_gpr - 8 : 0) * sizeof(int)) 7777957Sbenno#define __va_reg_args \ 7877957Sbenno ((char *)__builtin_frame_address(0) + __builtin_args_info(4)) 7977957Sbenno 8077957Sbenno#define __INTEGER_TYPE_CLASS 1 8177957Sbenno#define __REAL_TYPE_CLASS 8 8277957Sbenno#define __RECORD_TYPE_CLASS 12 8377957Sbenno 8477957Sbenno#define __va_longlong(type) \ 8577957Sbenno (__builtin_classify_type(*(type *)0) == __INTEGER_TYPE_CLASS && \ 8677957Sbenno sizeof(type) == 8) 8777957Sbenno 8877957Sbenno#define __va_double(type) \ 8977957Sbenno (__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS) 9077957Sbenno 9177957Sbenno#define __va_struct(type) \ 9277957Sbenno (__builtin_classify_type(*(type *)0) >= __RECORD_TYPE_CLASS) 9377957Sbenno 9477957Sbenno#define __va_size(type) \ 9577957Sbenno ((sizeof(type) + sizeof(int) - 1) / sizeof(int) * sizeof(int)) 9677957Sbenno 9777957Sbenno#define __va_savedgpr(ap, type) \ 9877957Sbenno ((ap).__base + (ap).__gpr * sizeof(int) - sizeof(type)) 9977957Sbenno 10077957Sbenno#define __va_savedfpr(ap, type) \ 10177957Sbenno ((ap).__base + 8 * sizeof(int) + (ap).__fpr * sizeof(double) - \ 10277957Sbenno sizeof(type)) 10377957Sbenno 10477957Sbenno#define __va_stack(ap, type) \ 10577957Sbenno ((ap).__stack += __va_size(type) + \ 10677957Sbenno (__va_longlong(type) ? (int)(ap).__stack & 4 : 0), \ 10777957Sbenno (ap).__stack - sizeof(type)) 10877957Sbenno 10977957Sbenno#define __va_gpr(ap, type) \ 11077957Sbenno ((ap).__gpr += __va_size(type) / sizeof(int) + \ 11177957Sbenno (__va_longlong(type) ? (ap).__gpr & 1 : 0), \ 11277957Sbenno (ap).__gpr <= 8 ? __va_savedgpr(ap, type) : __va_stack(ap, type)) 11377957Sbenno 11477957Sbenno#define __va_fpr(ap, type) \ 11577957Sbenno ((ap).__fpr++, \ 11677957Sbenno (ap).__fpr <= 8 ? __va_savedfpr(ap, type) : __va_stack(ap, type)) 11777957Sbenno 11877957Sbenno#define va_arg(ap, type) \ 11977957Sbenno (*(type *)(__va_struct(type) ? (*(void **)__va_gpr(ap, void *)) : \ 12077957Sbenno __va_double(type) ? __va_fpr(ap, type) : \ 12177957Sbenno __va_gpr(ap, type))) 12277957Sbenno 12377957Sbenno#endif /* __lint__ */ 12477957Sbenno 12577957Sbenno#define va_end(ap) 12677957Sbenno 12777957Sbenno#if !defined(_ANSI_SOURCE) && \ 12877957Sbenno (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \ 12977957Sbenno defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L) 13077957Sbenno#define va_copy(dest, src) \ 13177957Sbenno ((dest) = (src)) 13277957Sbenno#endif 13377957Sbenno 13496318Sobrien#endif /* __GNUC__ post GCC 2.95 */ 13596318Sobrien 13677957Sbenno#endif /* _POWERPC_STDARG_H_ */ 137