xref: /freebsd/sys/sys/sysent.h (revision 17ee9d00bc1ae1e598c38f25826f861e4bc6c3ce)
1 /*-
2  * Copyright (c) 1982, 1988, 1991 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	$Id: sysent.h,v 1.2 1994/10/09 21:53:05 sos Exp $
34  */
35 
36 #ifndef _SYS_SYSENT_H_
37 #define _SYS_SYSENT_H_ 1
38 
39 struct sysent {		/* system call table */
40 	int	sy_narg;	/* number of arguments */
41 	int	(*sy_call)();	/* implementing function */
42 };
43 
44 struct sysentvec {
45 	int		sv_size;	/* number of entries */
46 	struct sysent	*sv_table;	/* pointer to sysent */
47 	unsigned int	sv_mask;	/* optional mask to index */
48 	int		sv_sigsize;	/* size of signal translation table */
49 	int		*sv_sigtbl;	/* signal translation table */
50 	int		sv_errsize;	/* size of signal translation table */
51 	int 		*sv_errtbl;	/* errno translation table */
52 	int		(*sv_fixup)();	/* stack fixup function */
53 };
54 
55 #ifdef KERNEL
56 extern struct sysent sysent[];
57 #endif
58 
59 #endif /* _SYS_SYSENT_H_ */
60 
61 
62