145 lines
5.2 KiB
C
145 lines
5.2 KiB
C
/* $NetBSD: stdarg.h,v 1.9 2000/02/03 16:16:10 kleink Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This software was developed by the Computer Systems Engineering group
|
|
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
|
* contributed to Berkeley.
|
|
*
|
|
* All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Lawrence Berkeley Laboratory.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: @(#)stdarg.h 8.2 (Berkeley) 9/27/93
|
|
*/
|
|
|
|
#ifndef _SPARC64_STDARG_H_
|
|
#define _SPARC64_STDARG_H_
|
|
|
|
#include <machine/ansi.h>
|
|
#include <sys/featuretest.h>
|
|
|
|
#ifdef __lint__
|
|
#define __builtin_saveregs(t) (0)
|
|
#define __builtin_classify_type(t) (0)
|
|
#define __builtin_next_arg(t) ((t) ? 0 : 0)
|
|
#endif
|
|
|
|
typedef _BSD_VA_LIST_ va_list;
|
|
|
|
#define va_start(ap, last) \
|
|
(__builtin_next_arg(last), (ap) = (va_list)__builtin_saveregs())
|
|
|
|
#if !defined(_ANSI_SOURCE) && \
|
|
(!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE) || \
|
|
defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L)
|
|
#define va_copy(dest, src) \
|
|
((dest) = (src))
|
|
#endif
|
|
|
|
#define va_end(ap)
|
|
|
|
#ifdef __arch64__
|
|
/*
|
|
* For sparcv9 code.
|
|
*/
|
|
#define __va_arg(ap, type) \
|
|
((type)*(unsigned long *)((ap) += 8, (ap) - 8))
|
|
|
|
/* Like __va_arg(), except when the type must be 16-byte aligned. */
|
|
#define __va_arg16(ap, type) \
|
|
((type)*(unsigned long *)((__alignof__(type) == 16 ? \
|
|
(ap) = (va_list)(((unsigned long)(ap) + 31) & -16) :\
|
|
((ap) += 16)), (ap) - 16))
|
|
|
|
#define __REAL_TYPE_CLASS 8
|
|
#define __RECORD_TYPE_CLASS 12
|
|
#define va_arg(ap, type) \
|
|
(__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS ? \
|
|
__va_arg16(ap, type) : \
|
|
(__builtin_classify_type(*(type *)0) < __RECORD_TYPE_CLASS ? \
|
|
__va_arg(ap, type) : \
|
|
(sizeof(type) <= 8 ? __va_arg(ap, type) : \
|
|
(sizeof(type) <= 16 ? __va_arg16(ap, type) : \
|
|
*__va_arg(ap, type *)))))
|
|
#else
|
|
/*
|
|
* For sparcv8 code.
|
|
*/
|
|
#define __va_size(type) \
|
|
(((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long))
|
|
|
|
/*
|
|
* va_arg picks up the next argument of type `type'. Appending an
|
|
* asterisk to `type' must produce a pointer to `type' (i.e., `type'
|
|
* may not be, e.g., `int (*)()').
|
|
*
|
|
* Gcc-2.x tries to use ldd/std for double and quad_t values, but Sun's
|
|
* brain-damaged calling convention does not quad-align these. Thus, for
|
|
* 8-byte arguments, we have to pick up the actual value four bytes at a
|
|
* time, and use type punning (i.e., a union) to produce the result.
|
|
* (We could also do this with a libc function, actually, by returning
|
|
* 8 byte integers in %o0+%o1 and the same 8 bytes as a double in %f0+%f1.)
|
|
*
|
|
* Note: We don't declare __d with type `type', since in C++ the type might
|
|
* have a constructor.
|
|
*/
|
|
#if __GNUC__ < 2
|
|
#define __extension__
|
|
#endif
|
|
|
|
#define __va_8byte(ap, type) \
|
|
__extension__ ({ \
|
|
union { char __d[sizeof(type)]; int __i[2]; } __va_u; \
|
|
__va_u.__i[0] = ((int *)(void *)(ap))[0]; \
|
|
__va_u.__i[1] = ((int *)(void *)(ap))[1]; \
|
|
(ap) += 8; *(type *)(va_list)__va_u.__d; \
|
|
})
|
|
|
|
#define __va_arg(ap, type) \
|
|
(*(type *)((ap) += __va_size(type), \
|
|
(ap) - (sizeof(type) < sizeof(long) && \
|
|
sizeof(type) != __va_size(type) ? \
|
|
sizeof(type) : __va_size(type))))
|
|
|
|
#define __RECORD_TYPE_CLASS 12
|
|
#define va_arg(ap, type) \
|
|
(__builtin_classify_type(*(type *)0) >= __RECORD_TYPE_CLASS ? \
|
|
*__va_arg(ap, type *) : __va_size(type) == 8 ? \
|
|
__va_8byte(ap, type) : __va_arg(ap, type))
|
|
|
|
#endif
|
|
|
|
#endif /* !_SPARC64_STDARG_H_ */
|