xref: /netbsd-src/sys/arch/i386/include/signal.h (revision 4b30c543a0b21e3ba94f2c569e9a82b4fdb2075f)
1 /*
2  * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	from: @(#)signal.h	7.16 (Berkeley) 3/17/91
34  *	$Id: signal.h,v 1.1 1993/09/19 18:57:48 brezak Exp $
35  */
36 
37 #ifndef _MACHINE_SIGNAL_H_
38 #define _MACHINE_SIGNAL_H_
39 
40 typedef int sig_atomic_t;
41 
42 /*
43  * Get the "code" values
44  */
45 #include <machine/trap.h>
46 
47 /*
48  * Information pushed on stack when a signal is delivered.
49  * This is used by the kernel to restore state following
50  * execution of the signal handler.  It is also made available
51  * to the handler to allow it to restore state properly if
52  * a non-standard exit is performed.
53  */
54 struct	sigcontext {
55 	int	sc_onstack;		/* sigstack state to restore */
56 	int	sc_mask;		/* signal mask to restore */
57 	int	sc_esp;			/* machine state */
58         int     sc_ebp;
59         int     sc_isp;
60         int     sc_eip;
61         int     sc_efl;
62         int     sc_es;
63         int     sc_ds;
64         int     sc_cs;
65         int     sc_ss;
66         int     sc_edi;
67         int     sc_esi;
68         int     sc_ebx;
69         int     sc_edx;
70         int     sc_ecx;
71         int     sc_eax;
72 };
73 
74 #define sc_sp sc_esp
75 #define sc_fp sc_ebp
76 #define sc_pc sc_eip
77 #define sc_ps sc_efl
78 
79 #endif	/* _MACHINE_SIGNAL_H_ */
80