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      1 /*	$NetBSD: signal.h,v 1.26 2021/10/28 23:41:06 thorpej 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. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  *	@(#)signal.h	8.1 (Berkeley) 6/11/93
     41  */
     42 
     43 #ifndef	_SPARC_SIGNAL_H_
     44 #define _SPARC_SIGNAL_H_
     45 
     46 #include <sys/featuretest.h>
     47 
     48 #define	__HAVE_STRUCT_SIGCONTEXT
     49 
     50 #ifndef _LOCORE
     51 typedef int sig_atomic_t;
     52 #endif
     53 
     54 #if defined(_NETBSD_SOURCE)
     55 #ifndef _LOCORE
     56 #include <sys/sigtypes.h>
     57 /*
     58  * Information pushed on stack when a signal is delivered.
     59  * This is used by the kernel to restore state following
     60  * execution of the signal handler.  It is also made available
     61  * to the handler to allow it to restore state properly if
     62  * a non-standard exit is performed.
     63  *
     64  * All machines must have an sc_onstack and sc_mask.
     65  */
     66 #if defined(_KERNEL)
     67 struct sigcontext13 {
     68 	int	sc_onstack;		/* sigstack state to restore */
     69 	int	sc_mask;		/* signal mask to restore (old style) */
     70 	/* begin machine dependent portion */
     71 	long	sc_sp;			/* %sp to restore */
     72 	long	sc_pc;			/* pc to restore */
     73 	long	sc_npc;			/* npc to restore */
     74 #ifdef __arch64__
     75 	long	sc_tstate;		/* tstate to restore */
     76 #else
     77 	long	sc_psr;			/* psr to restore */
     78 #endif
     79 	long	sc_g1;			/* %g1 to restore */
     80 	long	sc_o0;			/* %o0 to restore */
     81 };
     82 #endif /* _KERNEL */
     83 
     84 struct sigcontext {
     85 	int		sc_onstack;	/* sigstack state to restore */
     86 	int		__sc_mask13;	/* signal mask to restore (old style) */
     87 	/* begin machine dependent portion */
     88 	long		sc_sp;		/* %sp to restore */
     89 	long		sc_pc;		/* pc to restore */
     90 	long		sc_npc;		/* npc to restore */
     91 #ifdef __arch64__
     92 	long		sc_tstate;	/* tstate to restore */
     93 #else
     94 	long		sc_psr;		/* psr to restore */
     95 #endif
     96 	long		sc_g1;		/* %g1 to restore */
     97 	long		sc_o0;		/* %o0 to restore */
     98 	sigset_t	sc_mask;	/* signal mask to restore (new style) */
     99 };
    100 
    101 #else /* _LOCORE */
    102 /* XXXXX These values don't work for _LP64 */
    103 #define	SC_SP_OFFSET	8
    104 #define	SC_PC_OFFSET	12
    105 #define	SC_NPC_OFFSET	16
    106 #define	SC_PSR_OFFSET	20
    107 #define	SC_G1_OFFSET	24
    108 #define	SC_O0_OFFSET	28
    109 #endif /* _LOCORE */
    110 
    111 /*
    112  * `Code' arguments to signal handlers.  The names, and the funny numbering.
    113  * are defined so as to match up with what SunOS uses; I have no idea why
    114  * they did the numbers that way, except maybe to match up with the 68881.
    115  */
    116 #define	FPE_INTOVF_TRAP		0x01	/* integer overflow */
    117 #define	FPE_INTDIV_TRAP		0x14	/* integer divide by zero */
    118 #define	FPE_FLTINEX_TRAP	0xc4	/* inexact */
    119 #define	FPE_FLTDIV_TRAP		0xc8	/* divide by zero */
    120 #define	FPE_FLTUND_TRAP		0xcc	/* underflow */
    121 #define	FPE_FLTOPERR_TRAP	0xd0	/* operand error */
    122 #define	FPE_FLTOVF_TRAP		0xd4	/* overflow */
    123 
    124 #endif	/* _NETBSD_SOURCE */
    125 #endif	/* !_SPARC_SIGNAL_H_ */
    126