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signal.h revision 1.6 
      1 /*	$NetBSD: signal.h,v 1.6 1998/09/13 11:41:02 pk Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This software was developed by the Computer Systems Engineering group
      8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      9  * contributed to Berkeley.
     10  *
     11  * All advertising materials mentioning features or use of this software
     12  * must display the following acknowledgement:
     13  *	This product includes software developed by the University of
     14  *	California, Lawrence Berkeley Laboratory.
     15  *
     16  * Redistribution and use in source and binary forms, with or without
     17  * modification, are permitted provided that the following conditions
     18  * are met:
     19  * 1. Redistributions of source code must retain the above copyright
     20  *    notice, this list of conditions and the following disclaimer.
     21  * 2. Redistributions in binary form must reproduce the above copyright
     22  *    notice, this list of conditions and the following disclaimer in the
     23  *    documentation and/or other materials provided with the distribution.
     24  * 3. All advertising materials mentioning features or use of this software
     25  *    must display the following acknowledgement:
     26  *	This product includes software developed by the University of
     27  *	California, Berkeley and its contributors.
     28  * 4. Neither the name of the University nor the names of its contributors
     29  *    may be used to endorse or promote products derived from this software
     30  *    without specific prior written permission.
     31  *
     32  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     33  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     34  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     35  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     36  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     40  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     41  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     42  * SUCH DAMAGE.
     43  *
     44  *	@(#)signal.h	8.1 (Berkeley) 6/11/93
     45  */
     46 
     47 #ifndef	_SPARC_SIGNAL_H_
     48 #define _SPARC_SIGNAL_H_
     49 
     50 #ifndef _LOCORE
     51 typedef int sig_atomic_t;
     52 #endif
     53 
     54 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
     55     !defined(_XOPEN_SOURCE)
     56 #ifndef _LOCORE
     57 
     58 /*
     59  * Information pushed on stack when a signal is delivered.
     60  * This is used by the kernel to restore state following
     61  * execution of the signal handler.  It is also made available
     62  * to the handler to allow it to restore state properly if
     63  * a non-standard exit is performed.
     64  *
     65  * All machines must have an sc_onstack and sc_mask.
     66  */
     67 #if defined(__LIBC12_SOURCE__) || (defined(_KERNEL) && defined(COMPAT_13))
     68 struct sigcontext13 {
     69 	int	sc_onstack;		/* sigstack state to restore */
     70 	int	sc_mask;		/* signal mask to restore */
     71 	/* begin machine dependent portion */
     72 	int	sc_sp;			/* %sp to restore */
     73 	int	sc_pc;			/* pc to restore */
     74 	int	sc_npc;			/* npc to restore */
     75 	int	sc_psr;			/* psr to restore */
     76 	int	sc_g1;			/* %g1 to restore */
     77 	int	sc_o0;			/* %o0 to restore */
     78 };
     79 #endif /* __LIBC12_SOURCE__ || (_KERNEL && COMPAT_13) */
     80 struct sigcontext {
     81 	int		sc_onstack;	/* sigstack state to restore */
     82 	int		__sc_mask13;	/* signal mask to restore (old style) */
     83 	/* begin machine dependent portion */
     84 	int		sc_sp;		/* %sp to restore */
     85 	int		sc_pc;		/* pc to restore */
     86 	int		sc_npc;		/* npc to restore */
     87 	int		sc_psr;		/* psr to restore */
     88 	int		sc_g1;		/* %g1 to restore */
     89 	int		sc_o0;		/* %o0 to restore */
     90 	sigset_t	sc_mask;	/* signal mask to restore (new style) */
     91 };
     92 #else /* _LOCORE */
     93 #define	SC_SP_OFFSET	8
     94 #define	SC_PC_OFFSET	12
     95 #define	SC_NPC_OFFSET	16
     96 #define	SC_PSR_OFFSET	20
     97 #define	SC_G1_OFFSET	24
     98 #define	SC_O0_OFFSET	28
     99 #endif /* _LOCORE */
    100 
    101 /*
    102  * `Code' arguments to signal handlers.  The names, and the funny numbering.
    103  * are defined so as to match up with what SunOS uses; I have no idea why
    104  * they did the numbers that way, except maybe to match up with the 68881.
    105  */
    106 #define	FPE_INTOVF_TRAP		0x01	/* integer overflow */
    107 #define	FPE_INTDIV_TRAP		0x14	/* integer divide by zero */
    108 #define	FPE_FLTINEX_TRAP	0xc4	/* inexact */
    109 #define	FPE_FLTDIV_TRAP		0xc8	/* divide by zero */
    110 #define	FPE_FLTUND_TRAP		0xcc	/* underflow */
    111 #define	FPE_FLTOPERR_TRAP	0xd0	/* operand error */
    112 #define	FPE_FLTOVF_TRAP		0xd4	/* overflow */
    113 
    114 #endif	/* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
    115 #endif	/* !_SPARC_SIGNAL_H_ */
    116