/*      $OpenBSD: signal.h,v 1.13 2024/03/29 21:16:38 miod Exp $        */
/*      $NetBSD: signal.h,v 1.10 2001/05/09 19:50:49 kleink Exp $ */

/*
 * Copyright (c) 1992, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This software was developed by the Computer Systems Engineering group
 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
 * contributed to Berkeley.
 *
 * All advertising materials mentioning features or use of this software
 * must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Lawrence Berkeley Laboratory.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)signal.h    8.1 (Berkeley) 6/11/93
 */

#ifndef _MACHINE_SIGNAL_H_
#define _MACHINE_SIGNAL_H_

#include <sys/cdefs.h>

typedef int sig_atomic_t;

#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
/*
 * Information pushed on stack when a signal is delivered.
 * This is used by the kernel to restore state following
 * execution of the signal handler.  It is also made available
 * to the handler to allow it to restore state properly if
 * a non-standard exit is performed.
 */
struct sigcontext {
        long            sc_cookie;
        /* begin machine dependent portion */
        long            sc_sp;          /* %sp to restore */
        long            sc_pc;          /* pc to restore */
        long            sc_npc;         /* npc to restore */
        long            sc_tstate;      /* tstate to restore */
        long            sc_g1;          /* %g1 to restore */
        long            sc_o0;          /* %o0 to restore */
        int             sc_mask;        /* signal mask to restore */
};
#endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */

#if defined(_KERNEL)
/*
 * `Code' arguments to signal handlers.  The names, and the funny numbering.
 * are defined so as to match up with what SunOS uses; I have no idea why
 * they did the numbers that way, except maybe to match up with the 68881.
 */
#define FPE_INTOVF_TRAP         0x01    /* integer overflow */
#define FPE_INTDIV_TRAP         0x14    /* integer divide by zero */
#define FPE_FLTINEX_TRAP        0xc4    /* inexact */
#define FPE_FLTDIV_TRAP         0xc8    /* divide by zero */
#define FPE_FLTUND_TRAP         0xcc    /* underflow */
#define FPE_FLTOPERR_TRAP       0xd0    /* operand error */
#define FPE_FLTOVF_TRAP         0xd4    /* overflow */
#endif

#endif  /* !_MACHINE_SIGNAL_H_ */