stdarg.h revision 85113
11638Srgrimes/*- 21638Srgrimes * Copyright (c) 2000 Tsubai Masanari. All rights reserved. 31638Srgrimes * 41638Srgrimes * Redistribution and use in source and binary forms, with or without 51638Srgrimes * modification, are permitted provided that the following conditions 61638Srgrimes * are met: 71638Srgrimes * 1. Redistributions of source code must retain the above copyright 81638Srgrimes * notice, this list of conditions and the following disclaimer. 91638Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 101638Srgrimes * notice, this list of conditions and the following disclaimer in the 111638Srgrimes * documentation and/or other materials provided with the distribution. 121638Srgrimes * 3. The name of the author may not be used to endorse or promote products 131638Srgrimes * derived from this software without specific prior written permission. 141638Srgrimes * 151638Srgrimes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 161638Srgrimes * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 171638Srgrimes * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 181638Srgrimes * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 191638Srgrimes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 201638Srgrimes * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 211638Srgrimes * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 221638Srgrimes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 231638Srgrimes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 241638Srgrimes * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 251638Srgrimes * 261638Srgrimes * $NetBSD: stdarg.h,v 1.5 2000/02/27 17:50:21 tsubai Exp $ 271638Srgrimes * $FreeBSD: head/sys/powerpc/include/stdarg.h 85113 2001-10-18 19:11:12Z mp $ 281638Srgrimes */ 291638Srgrimes 301638Srgrimes#ifndef _POWERPC_STDARG_H_ 311638Srgrimes#define _POWERPC_STDARG_H_ 321638Srgrimes 331638Srgrimes#include <machine/ansi.h> 34108533Sschweikh 35108533Sschweikh#if 0 361638Srgrimestypedef struct { 371638Srgrimes char __gpr; /* GPR offset */ 381638Srgrimes char __fpr; /* FPR offset */ 391638Srgrimes/* char __pad[2]; */ 401638Srgrimes char *__stack; /* args passed on stack */ 411638Srgrimes char *__base; /* args passed by registers (r3-r10, f1-f8) */ 421638Srgrimes} va_list; 431638Srgrimes#endif 441638Srgrimes 451638Srgrimestypedef _BSD_VA_LIST_ va_list; 461638Srgrimes 471638Srgrimes#ifdef __lint__ 481638Srgrimes 491638Srgrimes#define va_start(ap, last) ((ap) = *(va_list *)0) 501638Srgrimes#define va_arg(ap, type) (*(type *)(void *)&(ap)) 511638Srgrimes 521638Srgrimes#else 531638Srgrimes 541638Srgrimes#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ == 95) 551638Srgrimes#define va_start(ap, last) \ 561638Srgrimes (__builtin_next_arg(last), \ 571638Srgrimes __builtin_memcpy ((ap), __builtin_saveregs (), sizeof(__gnuc_va_list))) 581638Srgrimes#else 591638Srgrimes#define va_start(ap, last) \ 601638Srgrimes (__builtin_next_arg(last), \ 611638Srgrimes (ap).__stack = __va_stack_args, \ 621638Srgrimes (ap).__base = __va_reg_args, \ 631638Srgrimes (ap).__gpr = __va_first_gpr, \ 641638Srgrimes (ap).__fpr = __va_first_fpr) 651638Srgrimes#endif 661638Srgrimes 671638Srgrimes#define __va_first_gpr (__builtin_args_info(0)) 681638Srgrimes#define __va_first_fpr (__builtin_args_info(1) - 32 - 1) 691638Srgrimes#define __va_stack_args \ 701638Srgrimes ((char *)__builtin_saveregs() + \ 711638Srgrimes (__va_first_gpr >= 8 ? __va_first_gpr - 8 : 0) * sizeof(int)) 721638Srgrimes#define __va_reg_args \ 731638Srgrimes ((char *)__builtin_frame_address(0) + __builtin_args_info(4)) 741638Srgrimes 751638Srgrimes#define __INTEGER_TYPE_CLASS 1 761638Srgrimes#define __REAL_TYPE_CLASS 8 771638Srgrimes#define __RECORD_TYPE_CLASS 12 781638Srgrimes 791638Srgrimes#define __va_longlong(type) \ 801638Srgrimes (__builtin_classify_type(*(type *)0) == __INTEGER_TYPE_CLASS && \ 811638Srgrimes sizeof(type) == 8) 821638Srgrimes 831638Srgrimes#define __va_double(type) \ 841638Srgrimes (__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS) 851638Srgrimes 861638Srgrimes#define __va_struct(type) \ 871638Srgrimes (__builtin_classify_type(*(type *)0) >= __RECORD_TYPE_CLASS) 881638Srgrimes 891638Srgrimes#define __va_size(type) \ 901638Srgrimes ((sizeof(type) + sizeof(int) - 1) / sizeof(int) * sizeof(int)) 911638Srgrimes 921638Srgrimes#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ == 95) 931638Srgrimes#define __va_savedgpr(ap, type) \ 941638Srgrimes ((ap)->__base + (ap)->__gpr * sizeof(int) - sizeof(type)) 951638Srgrimes 961638Srgrimes#define __va_savedfpr(ap, type) \ 971638Srgrimes ((ap)->__base + 8 * sizeof(int) + (ap)->__fpr * sizeof(double) - \ 981638Srgrimes sizeof(type)) 991638Srgrimes 1001638Srgrimes#define __va_stack(ap, type) \ 1011638Srgrimes ((ap)->__stack += __va_size(type) + \ 1021638Srgrimes (__va_longlong(type) ? (int)(ap)->__stack & 4 : 0), \ 1031638Srgrimes (ap)->__stack - sizeof(type)) 1041638Srgrimes 1051638Srgrimes#define __va_gpr(ap, type) \ 1061638Srgrimes ((ap)->__gpr += __va_size(type) / sizeof(int) + \ 1071638Srgrimes (__va_longlong(type) ? (ap)->__gpr & 1 : 0), \ 1081638Srgrimes (ap)->__gpr <= 8 ? __va_savedgpr(ap, type) : __va_stack(ap, type)) 1091638Srgrimes 1101638Srgrimes#define __va_fpr(ap, type) \ 1111638Srgrimes ((ap)->__fpr++, \ 1121638Srgrimes (ap)->__fpr <= 8 ? __va_savedfpr(ap, type) : __va_stack(ap, type)) 1131638Srgrimes#else 1141638Srgrimes#define __va_savedgpr(ap, type) \ 1151638Srgrimes ((ap).__base + (ap).__gpr * sizeof(int) - sizeof(type)) 1161638Srgrimes 1171638Srgrimes#define __va_savedfpr(ap, type) \ 1181638Srgrimes ((ap).__base + 8 * sizeof(int) + (ap).__fpr * sizeof(double) - \ 1191638Srgrimes sizeof(type)) 1201638Srgrimes 1211638Srgrimes#define __va_stack(ap, type) \ 1221638Srgrimes ((ap).__stack += __va_size(type) + \ 1231638Srgrimes (__va_longlong(type) ? (int)(ap).__stack & 4 : 0), \ 1241638Srgrimes (ap).__stack - sizeof(type)) 1251638Srgrimes 1261638Srgrimes#define __va_gpr(ap, type) \ 1271638Srgrimes ((ap).__gpr += __va_size(type) / sizeof(int) + \ 1281638Srgrimes (__va_longlong(type) ? (ap).__gpr & 1 : 0), \ 1291638Srgrimes (ap).__gpr <= 8 ? __va_savedgpr(ap, type) : __va_stack(ap, type)) 1301638Srgrimes 1311638Srgrimes#define __va_fpr(ap, type) \ 1321638Srgrimes ((ap).__fpr++, \ 1331638Srgrimes (ap).__fpr <= 8 ? __va_savedfpr(ap, type) : __va_stack(ap, type)) 1341638Srgrimes#endif 1351638Srgrimes 1361638Srgrimes#define va_arg(ap, type) \ 1371638Srgrimes (*(type *)(__va_struct(type) ? (*(void **)__va_gpr(ap, void *)) : \ 1381638Srgrimes __va_double(type) ? __va_fpr(ap, type) : \ 1391638Srgrimes __va_gpr(ap, type))) 1401638Srgrimes 1411638Srgrimes#endif /* __lint__ */ 1421638Srgrimes 1431638Srgrimes#define va_end(ap) 1441638Srgrimes 1451638Srgrimes#if !defined(_ANSI_SOURCE) && \ 1461638Srgrimes (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \ 1471638Srgrimes defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L) 1481638Srgrimes#define va_copy(dest, src) \ 1491638Srgrimes ((dest) = (src)) 1501638Srgrimes#endif 1511638Srgrimes 1521638Srgrimes#endif /* _POWERPC_STDARG_H_ */ 1531638Srgrimes