1/* $OpenBSD: signal.h,v 1.13 2024/03/29 21:16:38 miod Exp $ */
2/* $NetBSD: signal.h,v 1.10 2001/05/09 19:50:49 kleink Exp $ */
3
4/*
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This software was developed by the Computer Systems Engineering group
9 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10 * contributed to Berkeley.
11 *
12 * All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by the University of
15 * California, Lawrence Berkeley Laboratory.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
19 * are met:
20 * 1. Redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution.
25 * 3. Neither the name of the University nor the names of its contributors
26 * may be used to endorse or promote products derived from this software
27 * without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 *
41 * @(#)signal.h 8.1 (Berkeley) 6/11/93
42 */
43
44#ifndef _MACHINE_SIGNAL_H_
45#define _MACHINE_SIGNAL_H_
46
47#include <sys/cdefs.h>
48
49typedef int sig_atomic_t;
50
51#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
52/*
53 * Information pushed on stack when a signal is delivered.
54 * This is used by the kernel to restore state following
55 * execution of the signal handler. It is also made available
56 * to the handler to allow it to restore state properly if
57 * a non-standard exit is performed.
58 */
59struct sigcontext {
60 long sc_cookie;
61 /* begin machine dependent portion */
62 long sc_sp; /* %sp to restore */
63 long sc_pc; /* pc to restore */
64 long sc_npc; /* npc to restore */
65 long sc_tstate; /* tstate to restore */
66 long sc_g1; /* %g1 to restore */
67 long sc_o0; /* %o0 to restore */
68 int sc_mask; /* signal mask to restore */
69};
70#endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
71
72#if defined(_KERNEL)
73/*
74 * `Code' arguments to signal handlers. The names, and the funny numbering.
75 * are defined so as to match up with what SunOS uses; I have no idea why
76 * they did the numbers that way, except maybe to match up with the 68881.
77 */
78#define FPE_INTOVF_TRAP 0x01 /* integer overflow */
79#define FPE_INTDIV_TRAP 0x14 /* integer divide by zero */
80#define FPE_FLTINEX_TRAP 0xc4 /* inexact */
81#define FPE_FLTDIV_TRAP 0xc8 /* divide by zero */
82#define FPE_FLTUND_TRAP 0xcc /* underflow */
83#define FPE_FLTOPERR_TRAP 0xd0 /* operand error */
84#define FPE_FLTOVF_TRAP 0xd4 /* overflow */
85#endif
86
87#endif /* !_MACHINE_SIGNAL_H_ */