Add skeleton machine dependent headers and c files for a port of freebsd
to a new architecture. This is the base of the sparc64 port, but contains
limited machine dependent code, and can be used a base for ports. Included
are:
- standard machine dependent headers, tweaked for a 64 bit, big endian
architecture, including empty versions of all the machine dependent
structures
- a machine independent atomic.h, which can be used until a port has
support for interrupts and the operations really need to be atomic
- stub versions of all the machine dependent functions, which panic
when called and print out the name of the function that needs to
be implemented. functions which are normally in assembly files are
not included, but this should reduce the number of different undefined
references on the first few compiles from hundreds to 5 or 6
Given minimal startup code and console support it should be trivial to
make this compile and run the first few sysinits on almost any architecture.
Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)stdarg.h 8.2 (Berkeley) 9/27/93
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2001-07-31 06:05:05 +00:00
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* from: NetBSD: stdarg.h,v 1.11 2000/07/23 21:36:56 mycroft Exp
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Add skeleton machine dependent headers and c files for a port of freebsd
to a new architecture. This is the base of the sparc64 port, but contains
limited machine dependent code, and can be used a base for ports. Included
are:
- standard machine dependent headers, tweaked for a 64 bit, big endian
architecture, including empty versions of all the machine dependent
structures
- a machine independent atomic.h, which can be used until a port has
support for interrupts and the operations really need to be atomic
- stub versions of all the machine dependent functions, which panic
when called and print out the name of the function that needs to
be implemented. functions which are normally in assembly files are
not included, but this should reduce the number of different undefined
references on the first few compiles from hundreds to 5 or 6
Given minimal startup code and console support it should be trivial to
make this compile and run the first few sysinits on almost any architecture.
Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
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* $FreeBSD$
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*/
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#ifndef _MACHINE_STDARG_H_
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#define _MACHINE_STDARG_H_
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#include <machine/ansi.h>
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typedef _BSD_VA_LIST_ va_list;
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#define va_start(ap, last) \
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(__builtin_next_arg(last), (ap) = (va_list)__builtin_saveregs())
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#define va_end(ap)
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#define __va_arg8(ap, type) \
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(*(type *)(void *)((ap) += 8, (ap) - 8))
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#define __va_arg16(ap, type) \
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(*(type *)(void *)((ap) = (va_list)(((unsigned long)(ap) + 31) & -16),\
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(ap) - 16))
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#define __va_int(ap, type) \
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(*(type *)(void *)((ap) += 8, (ap) - sizeof(type)))
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#define __REAL_TYPE_CLASS 8
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#define __RECORD_TYPE_CLASS 12
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#define va_arg(ap, type) \
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(__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS ? \
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(__alignof__(type) == 16 ? __va_arg16(ap, type) : \
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__va_arg8(ap, type)) : \
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(__builtin_classify_type(*(type *)0) < __RECORD_TYPE_CLASS ? \
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__va_int(ap, type) : \
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(sizeof(type) <= 8 ? __va_arg8(ap, type) : \
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(sizeof(type) <= 16 ? __va_arg16(ap, type) : \
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*__va_arg8(ap, type *)))))
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#endif /* !_MACHINE_STDARG_H_ */
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