signal.h revision 1.27 
1/*	$NetBSD: signal.h,v 1.27 2005/01/20 20:55:55 drochner Exp $	*/
2
3/*
4 * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)signal.h	7.16 (Berkeley) 3/17/91
32 */
33
34#ifndef _I386_SIGNAL_H_
35#define _I386_SIGNAL_H_
36
37#include <sys/featuretest.h>
38
39typedef int sig_atomic_t;
40
41#ifdef _KERNEL
42#ifdef _KERNEL_OPT
43#include "opt_compat_netbsd.h"
44#include "opt_compat_ibcs2.h"
45#endif
46#ifdef COMPAT_16
47#define SIGTRAMP_VALID(vers)	((unsigned)(vers) <= 2)
48#else
49#define SIGTRAMP_VALID(vers)	((vers) == 2)
50#endif
51#endif
52
53#if defined(_NETBSD_SOURCE)
54/*
55 * Get the "code" values
56 */
57#include <machine/trap.h>
58
59#if defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_IBCS2))
60/*
61 * Information pushed on stack when a signal is delivered.
62 * This is used by the kernel to restore state following
63 * execution of the signal handler.  It is also made available
64 * to the handler to allow it to restore state properly if
65 * a non-standard exit is performed.
66 */
67#if defined(COMPAT_13)
68struct sigcontext13 {
69	int	sc_gs;
70	int	sc_fs;
71	int	sc_es;
72	int	sc_ds;
73	int	sc_edi;
74	int	sc_esi;
75	int	sc_ebp;
76	int	sc_ebx;
77	int	sc_edx;
78	int	sc_ecx;
79	int	sc_eax;
80	/* XXX */
81	int	sc_eip;
82	int	sc_cs;
83	int	sc_eflags;
84	int	sc_esp;
85	int	sc_ss;
86
87	int	sc_onstack;		/* sigstack state to restore */
88	int	sc_mask;		/* signal mask to restore (old style) */
89
90	int	sc_trapno;		/* XXX should be above */
91	int	sc_err;
92};
93#endif /* COMPAT_13 */
94
95struct sigcontext {
96	int	sc_gs;
97	int	sc_fs;
98	int	sc_es;
99	int	sc_ds;
100	int	sc_edi;
101	int	sc_esi;
102	int	sc_ebp;
103	int	sc_ebx;
104	int	sc_edx;
105	int	sc_ecx;
106	int	sc_eax;
107	/* XXX */
108	int	sc_eip;
109	int	sc_cs;
110	int	sc_eflags;
111	int	sc_esp;
112	int	sc_ss;
113
114	int	sc_onstack;		/* sigstack state to restore */
115	int	__sc_mask13;		/* signal mask to restore (old style) */
116
117	int	sc_trapno;		/* XXX should be above */
118	int	sc_err;
119
120	sigset_t sc_mask;		/* signal mask to restore (new style) */
121};
122#endif /* _KERNEL && (COMPAT_16 || COMPAT_IBCS2) */
123
124#endif	/* _NETBSD_SOURCE */
125#endif	/* !_I386_SIGNAL_H_ */
126