93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/* $NetBSD: SYS.h,v 1.2 2003/03/24 14:29:34 scw Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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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 for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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#include <sys/syscall.h>
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/*
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* Note: NetBSD/sh5 uses a TRAPA code of 0x80 to indicate a system
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* call. (This is the same code used by the SH3/SH4 ports.)
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*/
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#ifdef __STDC__
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#define SYSTRAP(x) movi SYS_ ## x ##, r0; movi 128, r1; trapa r1
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#else
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#define SYSTRAP(x) movi SYS_/**/x, r0; movi 128, r1; trapa r1
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#endif
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#define _SYSCALL_NOERROR(x,y) \
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ENTRY(x) ; \
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SYSTRAP(y)
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#ifdef PIC
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#define _SYSCALL_CERROR 99b
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#define _SYSCALL(x,y) \
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_TEXT_SECTION ; \
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_ALIGN_TEXT ; \
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99: PIC_PROLOGUE ; \
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PIC_PTAL(_C_LABEL(__cerror), r0, tr0) ; \
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blink tr0, r63 ; \
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_SYSCALL_NOERROR(x,y)
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#else
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#define _SYSCALL_CERROR _C_LABEL(__cerror)
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#define _SYSCALL(x,y) \
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_SYSCALL_NOERROR(x,y)
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#endif
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#define PSEUDO_NOERROR(x,y) \
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_SYSCALL_NOERROR(x,y) ; \
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ptabs/l r18, tr0 ; \
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blink tr0, r63
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#define PSEUDO(x,y) \
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_SYSCALL(x,y) ; \
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ptabs/l r18, tr0 ; \
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beq/l r0, r63, tr0 ; \
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pta/l _SYSCALL_CERROR, tr0 ; \
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blink tr0, r63
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#define RSYSCALL_NOERROR(x) \
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PSEUDO_NOERROR(x,x)
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#define RSYSCALL(x) \
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PSEUDO(x,x)
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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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