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      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  */
     30 struct  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  */
     45 struct  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