signal.h revision 1.15 
1/* $NetBSD: signal.h,v 1.15 2008/11/19 18:35:57 ad Exp $ */
2
3/*
4 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22 *  School of Computer Science
23 *  Carnegie Mellon University
24 *  Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30#ifndef _ALPHA_SIGNAL_H_
31#define	_ALPHA_SIGNAL_H_
32
33#include <sys/featuretest.h>
34
35typedef long	sig_atomic_t;
36
37#ifdef _KERNEL_OPT
38#include "opt_compat_netbsd.h"
39#include "opt_compat_osf1.h"
40#endif
41
42/*
43 * Information pushed on stack when a signal is delivered.
44 * This is used by the kernel to restore state following
45 * execution of the signal handler.  It is also made available
46 * to the handler to allow it to restore state properly if
47 * a non-standard exit is performed.
48 *
49 * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline
50 * representations of 'struct reg' and 'struct fpreg', respectively.
51 */
52#if defined(_KERNEL) && (defined(COMPAT_13) || defined(COMPAT_OSF1))
53struct sigcontext13 {
54	long	sc_onstack;		/* sigstack state to restore */
55	long	sc_mask;		/* signal mask to restore (old style) */
56	long	sc_pc;			/* pc to restore */
57	long	sc_ps;			/* ps to restore */
58	unsigned long sc_regs[32];	/* integer register set (see above) */
59#define	sc_sp	sc_regs[R_SP]
60	long	sc_ownedfp;		/* fp has been used */
61	unsigned long sc_fpregs[32];	/* FP register set (see above) */
62	unsigned long sc_fpcr;		/* FP control register (see above) */
63	unsigned long sc_fp_control;	/* FP software control word */
64	long	sc_reserved[2];		/* XXX */
65	long	sc_xxx[8];		/* XXX */
66};
67#endif /* _KERNEL && (COMPAT_13 || COMPAT_OSF1) */
68
69#if defined(_LIBC) || (defined(_KERNEL) && (defined(COMPAT_16) || defined(COMPAT_OSF1)))
70struct sigcontext {
71	long	sc_onstack;		/* sigstack state to restore */
72	long	__sc_mask13;		/* signal mask to restore (old style) */
73	long	sc_pc;			/* pc to restore */
74	long	sc_ps;			/* ps to restore */
75	unsigned long sc_regs[32];	/* integer register set (see above) */
76#define	sc_sp	sc_regs[R_SP]
77	long	sc_ownedfp;		/* fp has been used */
78	unsigned long sc_fpregs[32];	/* FP register set (see above) */
79	unsigned long sc_fpcr;		/* FP control register (see above) */
80	unsigned long sc_fp_control;	/* FP software control word */
81	long	sc_reserved[2];		/* XXX */
82	long	sc_xxx[8];		/* XXX */
83	sigset_t sc_mask;		/* signal mask to restore (new style) */
84};
85#endif /* _LIBC || _KERNEL */
86
87#endif /* !_ALPHA_SIGNAL_H_*/
88