signal.h revision 1.22 
1/*	$NetBSD: signal.h,v 1.22 2005/12/11 12:17:53 christos 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 _M68K_SIGNAL_H_
35#define _M68K_SIGNAL_H_
36
37#include <sys/featuretest.h>
38
39typedef int sig_atomic_t;
40
41#if defined(_NETBSD_SOURCE)
42
43#ifdef _KERNEL
44#ifdef COMPAT_16
45#define SIGTRAMP_VALID(vers)	((unsigned)(vers) <= 2)
46#else
47#define SIGTRAMP_VALID(vers)	((vers) == 2)
48#endif
49#endif
50
51/*
52 * Get the "code" values
53 */
54#include <machine/trap.h>
55
56/*
57 * Information pushed on stack when a signal is delivered.
58 * This is used by the kernel to restore state following
59 * execution of the signal handler.  It is also made available
60 * to the handler to allow it to restore state properly if
61 * a non-standard exit is performed.
62 */
63#if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
64struct sigcontext13 {
65	int	sc_onstack;		/* sigstack state to restore */
66	int	sc_mask;		/* signal mask to restore (old style) */
67	int	sc_sp;			/* sp to restore */
68	int	sc_fp;			/* fp to restore */
69	int	sc_ap;			/* ap to restore */
70	int	sc_pc;			/* pc to restore */
71	int	sc_ps;			/* psl to restore */
72};
73#endif /* __LIBC12_SOURCE__ || _KERNEL */
74
75#if defined(_LIBC) || defined(_KERNEL)
76struct sigcontext {
77	int	sc_onstack;		/* sigstack state to restore */
78	int	__sc_mask13;		/* signal mask to restore (old style) */
79	int	sc_sp;			/* sp to restore */
80	int	sc_fp;			/* fp to restore */
81	int	sc_ap;			/* ap to restore */
82	int	sc_pc;			/* pc to restore */
83	int	sc_ps;			/* psl to restore */
84	sigset_t sc_mask;		/* signal mask to restore (new style) */
85};
86#endif /* _LIBC || _KERNEL */
87
88#include <m68k/cpuframe.h>
89
90/*
91 * Register state saved while kernel delivers a signal.
92 */
93struct sigstate {
94	int	ss_flags;		/* which of the following are valid */
95	struct frame ss_frame;		/* original exception frame */
96	struct fpframe ss_fpstate;	/* 68881/68882 state info */
97};
98
99#define	SS_RTEFRAME	0x01
100#define	SS_FPSTATE	0x02
101#define	SS_USERREGS	0x04
102
103#if defined(__M68K_SIGNAL_PRIVATE)
104
105#ifdef _KERNEL
106#define	_SIGSTATE_EXFRAMESIZE(fmt)	exframesize[(fmt)]
107#endif
108
109#endif /* __M68K_SIGNAL_PRIVATE */
110
111#endif	/* _NETBSD_SOURCE */
112#endif	/* !_M68K_SIGNAL_H_ */
113