78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
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/* $NetBSD: SYS.h,v 1.7 2009/11/03 05:07:25 snj 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) 1998-2002 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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*
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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 SYSENTRY(x) LEAF_ENTRY(x)
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#define SYSEXIT(x) EXIT(x)
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#define SYSCALL(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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.import __cerror, code !\
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comb,<> %r0, %t1, __cerror !\
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ldw HPPA_FRAME_ERP(%sr0,%sp), %rp
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#define PSEUDO(x,y) !\
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SYSENTRY(x) !\
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SYSCALL(y) !\
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bv %r0(%rp) !\
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nop !\
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SYSEXIT(x)
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#define PSEUDO_NOERROR(x,y) !\
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SYSENTRY(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_,y), %t1 !\
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ldw HPPA_FRAME_ERP(%sr0,%sp), %rp !\
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bv %r0(%rp) !\
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nop !\
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SYSEXIT(x)
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#define RSYSCALL(x) PSEUDO(x,x)
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#define RSYSCALL_NOERROR(x) PSEUDO_NOERROR(x,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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