1/*
2 * Copyright 1996 Sun Microsystems, Inc.  All rights reserved.
3 * Use is subject to license terms.
4 */
5
6/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7/*	  All Rights Reserved  	*/
8
9/*
10 * Copyright (c) 1980 Regents of the University of California.
11 * All rights reserved. The Berkeley Software License Agreement
12 * specifies the terms and conditions for redistribution.
13 */
14
15
16#ifndef CSH_SIGNAL_H
17#define CSH_SIGNAL_H
18
19#pragma ident	"%Z%%M%	%I%	%E% SMI"
20
21/*
22 * 4.3BSD signal compatibility header
23 *
24 */
25#define sigmask(m)	(m > 32 ? 0 : (1 << ((m)-1)))
26
27/*
28 * 4.3BSD signal vector structure used in sigvec call.
29 */
30struct  sigvec {
31        void    (*sv_handler)();        /* signal handler */
32        int     sv_mask;                /* signal mask to apply */
33        int     sv_flags;               /* see signal options below */
34};
35
36#define SV_ONSTACK      0x0001  /* take signal on signal stack */
37#define SV_INTERRUPT    0x0002  /* do not restart system on signal return */
38#define SV_RESETHAND    0x0004  /* reset handler to SIG_DFL when signal taken */
39
40#define sv_onstack sv_flags
41
42/*
43 * Machine dependent deta structure
44 */
45struct  sigcontext {
46        int     sc_onstack;             /* sigstack state to restore */
47        int     sc_mask;                /* signal mask to restore */
48	int	sc_sp;			/* sp to restore */
49	int	sc_pc;			/* pc to retore */
50	int	sc_ps;			/* psl to restore */
51	int	sc_eax;			/* eax to restore */
52	int	sc_edx;			/* edx to restore */
53};
54
55#define SI_DFLCODE	1
56
57#define BUS_HWERR	BUS_ADRERR	/* misc hardware error (e.g. timeout) */
58#define BUS_ALIGN	BUS_ADRALN	/* hardware alignment error */
59
60#define SEGV_NOMAP	SEGV_MAPERR	/* no mapping at the fault address */
61#define SEGV_PROT	SEGV_ACCERR	/* access exceeded protections */
62
63/*
64 * The SEGV_CODE(code) will be SEGV_NOMAP, SEGV_PROT, or SEGV_OBJERR.
65 * In the SEGV_OBJERR case, doing a SEGV_ERRNO(code) gives an errno value
66 * reported by the underlying file object mapped at the fault address.
67 */
68
69#define SIG_NOADDR	((char *)~0)
70
71#define	SEGV_MAKE_ERR(e) (((e) << 8) | SEGV_MAPERR)
72
73#endif	/* CSH_SIGNAL_H */
74