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SYS.h revision 1.4 
      1 /*	$NetBSD: SYS.h,v 1.4 1998/02/03 19:33:58 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * William Jolitz.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	from: @(#)SYS.h	5.5 (Berkeley) 5/7/91
     39  */
     40 
     41 #include <machine/asm.h>
     42 #include <sys/syscall.h>
     43 
     44 #ifdef __STDC__
     45 #define	_DOSYSCALL(x)		li	0,(SYS_ ## x)		;\
     46 				sc
     47 #else
     48 #define	_DOSYSCALL(x)		li	0,(SYS_/**/x)		;\
     49 				sc
     50 #endif /* __STDC__ */
     51 
     52 #define	_SYSCALL_NOERROR(x,y)	.text				;\
     53 				.align	2			;\
     54 			ENTRY(x)				;\
     55 				_DOSYSCALL(y)
     56 
     57 #define _SYSCALL(x,y)		.text				;\
     58 				.align	2			;\
     59 			2:	b	PIC_PLT(cerror)		;\
     60 				_SYSCALL_NOERROR(x,y)		;\
     61 				bso	2b
     62 
     63 #define SYSCALL_NOERROR(x)	_SYSCALL_NOERROR(x,x)
     64 
     65 #define SYSCALL(x)		_SYSCALL(x,x)
     66 
     67 #define PSEUDO_NOERROR(x,y)	_SYSCALL_NOERROR(x,y)		;\
     68 				blr
     69 
     70 #define PSEUDO(x,y)		_SYSCALL_NOERROR(x,y)		;\
     71 				bnslr				;\
     72 				b	PIC_PLT(cerror)
     73 
     74 #define RSYSCALL_NOERROR(x)	PSEUDO_NOERROR(x,x)
     75 
     76 #define RSYSCALL(x)		PSEUDO(x,x)
     77