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Annotation of sys/arch/sparc64/include/stdarg.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: stdarg.h,v 1.6 2006/04/09 03:07:53 deraadt Exp $      */
                      2: /*     $NetBSD: stdarg.h,v 1.11 2000/07/23 21:36:56 mycroft Exp $ */
                      3:
                      4: /*
                      5:  * Copyright (c) 1992, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This software was developed by the Computer Systems Engineering group
                      9:  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
                     10:  * contributed to Berkeley.
                     11:  *
                     12:  * All advertising materials mentioning features or use of this software
                     13:  * must display the following acknowledgement:
                     14:  *     This product includes software developed by the University of
                     15:  *     California, Lawrence Berkeley Laboratory.
                     16:  *
                     17:  * Redistribution and use in source and binary forms, with or without
                     18:  * modification, are permitted provided that the following conditions
                     19:  * are met:
                     20:  * 1. Redistributions of source code must retain the above copyright
                     21:  *    notice, this list of conditions and the following disclaimer.
                     22:  * 2. Redistributions in binary form must reproduce the above copyright
                     23:  *    notice, this list of conditions and the following disclaimer in the
                     24:  *    documentation and/or other materials provided with the distribution.
                     25:  * 3. Neither the name of the University nor the names of its contributors
                     26:  *    may be used to endorse or promote products derived from this software
                     27:  *    without specific prior written permission.
                     28:  *
                     29:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     30:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     31:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     32:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     33:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     34:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     35:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     36:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     37:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     38:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     39:  * SUCH DAMAGE.
                     40:  *
                     41:  *     from: @(#)stdarg.h      8.2 (Berkeley) 9/27/93
                     42:  */
                     43:
                     44: #ifndef _SPARC64_STDARG_H_
                     45: #define        _SPARC64_STDARG_H_
                     46:
                     47: #include <sys/cdefs.h>
                     48: #include <machine/_types.h>
                     49:
                     50: #ifdef __lint__
                     51: #define        __builtin_saveregs(t)           (0)
                     52: #define        __builtin_classify_type(t)      (0)
                     53: #define        __builtin_next_arg(t)           ((t) ? 0 : 0)
                     54: #endif
                     55:
                     56: typedef __va_list      va_list;
                     57:
                     58: #ifdef lint
                     59: #define        va_start(ap,lastarg)    ((ap) = (ap))
                     60: #else
                     61: #define        va_start(ap, last) \
                     62:        (__builtin_next_arg(last), (ap) = (va_list)__builtin_saveregs())
                     63: #endif /* lint */
                     64:
                     65: #if __BSD_VISIBLE
                     66: #define        va_copy(dest, src) \
                     67:        ((dest) = (src))
                     68: #endif
                     69:
                     70: #define va_end(ap)
                     71:
                     72: /*
                     73:  * For sparcv9 code.
                     74:  */
                     75: #define        __va_arg8(ap, type) \
                     76:        (*(type *)(void *)((ap) += 8, (ap) - 8))
                     77: #define        __va_arg16(ap, type) \
                     78:        (*(type *)(void *)((ap) = (va_list)(((unsigned long)(ap) + 31) & -16),\
                     79:                           (ap) - 16))
                     80: #define        __va_int(ap, type) \
                     81:        (*(type *)(void *)((ap) += 8, (ap) - sizeof(type)))
                     82:
                     83: #define        __REAL_TYPE_CLASS       8
                     84: #define        __RECORD_TYPE_CLASS     12
                     85: #define va_arg(ap, type) \
                     86:        (__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS ?     \
                     87:         (__alignof__(type) == 16 ? __va_arg16(ap, type) :              \
                     88:          __va_arg8(ap, type)) :                                        \
                     89:         (__builtin_classify_type(*(type *)0) < __RECORD_TYPE_CLASS ?   \
                     90:          __va_int(ap, type) :                                          \
                     91:          (sizeof(type) <= 8 ? __va_arg8(ap, type) :                    \
                     92:           (sizeof(type) <= 16 ? __va_arg16(ap, type) :                 \
                     93:            *__va_arg8(ap, type *)))))
                     94:
                     95: #endif /* !_SPARC64_STDARG_H_ */