signal.h revision 1.12 
1/* $NetBSD: signal.h,v 1.12 2004/05/10 21:51:49 drochner 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
38#ifdef COMPAT_16
39#define SIGTRAMP_VALID(vers)	((unsigned)(vers) <= 2)
40#else
41#define SIGTRAMP_VALID(vers)	((vers) == 2)
42#endif
43#endif
44
45#if defined(_NETBSD_SOURCE)
46/*
47 * Information pushed on stack when a signal is delivered.
48 * This is used by the kernel to restore state following
49 * execution of the signal handler.  It is also made available
50 * to the handler to allow it to restore state properly if
51 * a non-standard exit is performed.
52 *
53 * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline
54 * representations of 'struct reg' and 'struct fpreg', respectively.
55 */
56#if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
57struct sigcontext13 {
58	long	sc_onstack;		/* sigstack state to restore */
59	long	sc_mask;		/* signal mask to restore (old style) */
60	long	sc_pc;			/* pc to restore */
61	long	sc_ps;			/* ps to restore */
62	unsigned long sc_regs[32];	/* integer register set (see above) */
63#define	sc_sp	sc_regs[R_SP]
64	long	sc_ownedfp;		/* fp has been used */
65	unsigned long sc_fpregs[32];	/* FP register set (see above) */
66	unsigned long sc_fpcr;		/* FP control register (see above) */
67	unsigned long sc_fp_control;	/* FP software control word */
68	long	sc_reserved[2];		/* XXX */
69	long	sc_xxx[8];		/* XXX */
70};
71#endif /* __LIBC12_SOURCE__ || _KERNEL */
72
73struct sigcontext {
74	long	sc_onstack;		/* sigstack state to restore */
75	long	__sc_mask13;		/* signal mask to restore (old style) */
76	long	sc_pc;			/* pc to restore */
77	long	sc_ps;			/* ps to restore */
78	unsigned long sc_regs[32];	/* integer register set (see above) */
79#define	sc_sp	sc_regs[R_SP]
80	long	sc_ownedfp;		/* fp has been used */
81	unsigned long sc_fpregs[32];	/* FP register set (see above) */
82	unsigned long sc_fpcr;		/* FP control register (see above) */
83	unsigned long sc_fp_control;	/* FP software control word */
84	long	sc_reserved[2];		/* XXX */
85	long	sc_xxx[8];		/* XXX */
86	sigset_t sc_mask;		/* signal mask to restore (new style) */
87};
88
89#endif /* _NETBSD_SOURCE */
90#endif /* !_ALPHA_SIGNAL_H_*/
91