116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/* $NetBSD: SYS.h,v 1.3 2002/07/04 16:48:44 thorpej Exp $ */
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/* $OpenBSD: SYS.h,v 1.9 2001/09/20 20:52:09 millert Exp $ */
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/*
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* Copyright (c) 1998-1999 Michael Shalayeff
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* All rights reserved.
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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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* 3. 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 Michael Shalayeff.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF MIND
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/syscall.h>
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#include <machine/asm.h>
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#include <machine/vmparam.h>
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#undef _LOCORE
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#define _LOCORE
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#include <machine/frame.h>
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#define __ENTRY(p,x) ENTRY(__CONCAT(p,x),0)
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#define __EXIT(p,x) EXIT(__CONCAT(p,x))
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#define __SYSCALL_NOERROR(p,x) !\
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stw rp, HPPA_FRAME_ERP(sr0,sp) !\
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ldil L%SYSCALLGATE, r1 !\
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ble 4(sr7, r1) !\
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ldi __CONCAT(SYS_,x), t1 !\
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ldw HPPA_FRAME_ERP(sr0,sp), rp
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#ifdef PIC
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#define __SYSCALL_ERRNO !\
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addil LT%errno, %r19 !\
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ldw RT%errno(%r1), %r1 !\
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stw t1, 0(%r1)
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#else
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#define __SYSCALL_ERRNO !\
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ldil L%errno, %r1 !\
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stw t1, R%errno(%r1)
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#endif
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#define __SYSCALL(p,x) !\
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.import errno, data !\
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__SYSCALL_NOERROR(p,x) !\
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comb,=,n r0, t1, __CONCAT(x,$noerr) !\
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__SYSCALL_ERRNO !\
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ldi -1, ret0 !\
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bv r0(rp) !\
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ldi -1, ret1 !\
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.label __CONCAT(x,$noerr)
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#define __RSYSCALL(p,x) !\
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__ENTRY(p,x) !\
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__SYSCALL(p,x) !\
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bv r0(rp) !\
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nop !\
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__EXIT(p,x)
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#define __RSYSCALL_NOERROR(p,x) !\
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__ENTRY(p,x) !\
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__SYSCALL_NOERROR(p,x) !\
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bv r0(rp) !\
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nop !\
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__EXIT(p,x)
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#define __PSEUDO(p,x,y) !\
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__ENTRY(p,x) !\
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__SYSCALL(p,y) !\
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bv r0(rp) !\
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nop !\
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__EXIT(p,x)
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#define __PSEUDO_NOERROR(p,x,y) !\
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__ENTRY(p,x) !\
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__SYSCALL_NOERROR(p,y) !\
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bv r0(rp) !\
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nop !\
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__EXIT(p,x)
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#ifdef WEAK_ALIAS
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#define WSYSCALL(weak,strong) !\
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WEAK_ALIAS(weak,strong) !\
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PSEUDO(strong,weak)
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#else
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#define WSYSCALL(weak,strong) !\
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PSEUDO(weak,weak)
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#endif
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#define SYSCALL(x) __SYSCALL(,x)
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#define RSYSCALL(x) __RSYSCALL(,x)
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#define RSYSCALL_NOERROR(x) __RSYSCALL_NOERROR(,x)
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#define PSEUDO(x,y) __PSEUDO(,x,y)
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#define PSEUDO_NOERROR(x,y) __PSEUDO_NOERROR(,x,y)
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/*#define SYSENTRY(x) __ENTRY(,x)*/
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