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/* $OpenBSD: SYS.h,v 1.8 2003/01/07 21:59:21 miod Exp $*/
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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: @(#)SYS.h 5.5 (Berkeley) 5/7/91
*/
#include <sys/syscall.h>
#include <machine/asm.h>
#ifdef __STDC__
#define __ENTRY(p,x) ENTRY(p##x)
#define __SYSCALLNAME(p,x) p##x
#define __ALIAS(prefix,name) WEAK_ALIAS(name,prefix##name)
#else
#define __ENTRY(p,x) ENTRY(p/**/x)
#define __SYSCALLNAME(p,x) p/**/x
#define __ALIAS(prefix,name) WEAK_ALIAS(name,prefix/**/name)
#endif
#define __DO_SYSCALL(x) \
ld r10,r31,32; \
ld r11,r31,36; \
ld r12,r31,40; \
or r13,r0,__SYSCALLNAME(SYS_,x); \
tb0 0, r0, 128
#define __SYSCALL__NOERROR(p,x,y) \
align 8; \
__ENTRY(p,x); \
__ALIAS(p,x); \
__DO_SYSCALL(y)
#define __SYSCALL(p,x,y) \
__SYSCALL__NOERROR(p,x,y); \
br __cerror
#define __PSEUDO_NOERROR(p,x,y) \
__SYSCALL__NOERROR(p,x,y); \
jmp r1
#define __PSEUDO(p,x,y) \
__SYSCALL(p,x,y); \
jmp r1
/*
* System calls entry points are really named _thread_sys_{syscall},
* and weakly aliased to the name {syscall}. This allows the thread
* library to replace system calls at link time.
*/
#define SYSCALL(x) __SYSCALL(_thread_sys_,x,x)
#define RSYSCALL(x) __PSEUDO(_thread_sys_,x,x)
#define PSEUDO(x,y) __PSEUDO(_thread_sys_,x,y)
#define PSEUDO_NOERROR(x,y) __PSEUDO_NOERROR(_thread_sys_,x,y)
#define SYSENTRY(x) __ENTRY(_thread_sys_,x); \
__ALIAS(_thread_sys_,x)
#define ASMSTR .asciz
.globl __cerror
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