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SYS.h revision 1.3 
      1 /*-
      2  * Copyright (c) 1990 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * the Systems Programming Group of the University of Utah Computer
      7  * Science Department.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by the University of
     20  *	California, Berkeley and its contributors.
     21  * 4. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *	from: @(#)SYS.h	5.5 (Berkeley) 5/7/91
     38  *	$Id: SYS.h,v 1.3 1994/02/08 02:31:55 chopps Exp $
     39  */
     40 
     41 #include <sys/syscall.h>
     42 #include <machine/asm.h>
     43 
     44 #ifdef __STDC__
     45 
     46 #ifdef	PIC
     47 /* With PIC code, we can't pass the error to cerror in d0,
     48    because the jump might go via the binder. */
     49 #define	SYSCALL(x)	.even; err: movl d0,sp@-; jra cerror; ENTRY(x); \
     50 			movl \#SYS_ ## x,d0; trap \#0; jcs err
     51 #else /* !PIC */
     52 #define	SYSCALL(x)	.even; err: jra cerror; ENTRY(x); \
     53 			movl \#SYS_ ## x,d0; trap \#0; jcs err
     54 #endif /* !PIC */
     55 
     56 #define	RSYSCALL(x)	SYSCALL(x); rts
     57 #define	PSEUDO(x,y)	ENTRY(x); movl \#SYS_ ## y,d0; trap \#0; rts
     58 
     59 #else /* !__STDC__ */
     60 
     61 #ifdef	PIC
     62 /* With PIC code, we can't pass the error to cerror in d0,
     63    because the jump might go via the binder. */
     64 #define	SYSCALL(x)	.even; err: movl d0,sp@-; jra cerror; ENTRY(x); \
     65 			movl #SYS_/**/x,d0; trap #0; jcs err
     66 #else /* !PIC */
     67 #define	SYSCALL(x)	.even; err: jra cerror; ENTRY(x); \
     68 			movl #SYS_/**/x,d0; trap #0; jcs err
     69 #endif /* !PIC */
     70 
     71 #define	RSYSCALL(x)	SYSCALL(x); rts
     72 #define	PSEUDO(x,y)	ENTRY(x); movl #SYS_/**/y,d0; trap #0; rts
     73 
     74 #endif /* !__STDC__ */
     75 
     76 #define	ASMSTR		.asciz
     77 
     78 	.globl	cerror
     79