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/* $OpenBSD: SYS.h,v 1.8 2000/10/06 23:29:15 d Exp $ */
/*-
* Copyright (c) 1994
* Andrew Cagney. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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 8.1 (Berkeley) 6/4/93
*/
#include <sys/syscall.h>
/* r0 will be a non zero errno if there was an error, while r3/r4 will
contain the return value */
#include "machine/asm.h"
#ifdef __STDC__
#define _CONCAT(x,y) x##y
#define PSEUDO_PREFIX(p,x,y) .extern cerror ; \
ENTRY(p##x) \
li 0, SYS_##y ; \
/* sc */
#else /* !__STDC__ */
#define _CONCAT(x,y) x/**/y
#define PSEUDO_PREFIX(p,x,y) .extern cerror ; \
ENTRY(p/**/x) \
li 0, SYS_/**/y ; \
/* sc */
#endif /* !__STDC__ */
#define PSEUDO_SUFFIX cmpwi 0, 0 ; \
beqlr+ ; \
b PIC_PLT(_ASM_LABEL(cerror))
#define SUFFIX PSEUDO_SUFFIX
#define ALIAS(x,y) .weak y; .set y,_CONCAT(x,y);
#define PREFIX(x) ALIAS(_thread_sys_,x) \
PSEUDO_PREFIX(_thread_sys_,x,x)
#define PREFIX2(x,y) ALIAS(_thread_sys_,x) \
PSEUDO_PREFIX(_thread_sys_,x,y)
#define PSEUDO(x,y) ALIAS(_thread_sys_,x) \
PSEUDO_PREFIX(_thread_sys_,x,y) ; \
sc ; \
PSEUDO_SUFFIX
#define RSYSCALL(x) PSEUDO(x,x)
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