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SYS.h revision 1.3 
      1 /*	$NetBSD: SYS.h,v 1.3 1997/07/16 16:11:48 kleink 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 
     46 #define _SYSCALL_NOERROR(x,y)	.text				;\
     47 				.align	2			;\
     48 			ENTRY(x)				;\
     49 				li	0,(SYS_ ## y)		;\
     50 				sc
     51 
     52 #else /* !__STDC__ */
     53 
     54 #define _SYSCALL_NOERROR(x,y)	.text				;\
     55 				.align	2			;\
     56 			ENTRY(x)				;\
     57 				li	0,(SYS_/**/y)		;\
     58 				sc
     59 
     60 #endif /* __STDC__ */
     61 
     62 
     63 #define _SYSCALL(x,y)		.text				;\
     64 				.align	2			;\
     65 			2:	b	PIC_PLT(cerror)		;\
     66 				_SYSCALL_NOERROR(x,y)		;\
     67 				bso	2b
     68 
     69 #define SYSCALL_NOERROR(x)	_SYSCALL_NOERROR(x,x)
     70 
     71 #define SYSCALL(x)		_SYSCALL(x,x)
     72 
     73 #define PSEUDO_NOERROR(x,y)	_SYSCALL_NOERROR(x,y)		;\
     74 				blr
     75 
     76 #define PSEUDO(x,y)		_SYSCALL_NOERROR(x,y)		;\
     77 				bnslr				;\
     78 				b	PIC_PLT(cerror)
     79 
     80 #define RSYSCALL_NOERROR(x)	PSEUDO_NOERROR(x,x)
     81 
     82 #define RSYSCALL(x)		PSEUDO(x,x)
     83