1 /* $Id: signal.h,v 1.1 1998/01/10 10:13:16 jb Exp $ */
2 /* From: NetBSD: signal.h,v 1.3 1997/04/06 08:47:43 cgd Exp */
5 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
8 * Author: Chris G. Demetriou
10 * Permission to use, copy, modify and distribute this software and
11 * its documentation is hereby granted, provided that both the copyright
12 * notice and this permission notice appear in all copies of the
13 * software, derivative works or modified versions, and any portions
14 * thereof, and that both notices appear in supporting documentation.
16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
20 * Carnegie Mellon requests users of this software to return to
22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
23 * School of Computer Science
24 * Carnegie Mellon University
25 * Pittsburgh PA 15213-3890
27 * any improvements or extensions that they make and grant Carnegie the
28 * rights to redistribute these changes.
31 #ifndef _ALPHA_SIGNAL_H_
32 #define _ALPHA_SIGNAL_H_
34 typedef long sig_atomic_t;
38 * Information pushed on stack when a signal is delivered.
39 * This is used by the kernel to restore state following
40 * execution of the signal handler. It is also made available
41 * to the handler to allow it to restore state properly if
42 * a non-standard exit is performed.
44 * Note that sc_regs[] and sc_fpregs[]+sc_fpcr are inline
45 * representations of 'struct reg' and 'struct fpreg', respectively.
48 long sc_onstack; /* sigstack state to restore */
49 long sc_mask; /* signal mask to restore */
50 long sc_pc; /* pc to restore */
51 long sc_ps; /* ps to restore */
52 unsigned long sc_regs[32]; /* integer register set (see above) */
53 #define sc_sp sc_regs[R_SP]
54 long sc_ownedfp; /* fp has been used */
55 unsigned long sc_fpregs[32]; /* FP register set (see above) */
56 unsigned long sc_fpcr; /* FP control register (see above) */
57 unsigned long sc_fp_control; /* FP software control word */
58 long sc_reserved[2]; /* XXX */
59 long sc_xxx1[2]; /* sc_ssize, sc_sbase on DUX */
60 unsigned long sc_traparg_a0; /* a0 argument to trap at exception */
61 unsigned long sc_traparg_a1; /* a1 argument to trap at exception */
62 unsigned long sc_traparg_a2; /* a2 argument to trap at exception */
63 long sc_xxx2[3]; /* sc_fp_trap_pc, sc_fp_trigger_sum, sc_fp_trigger_inst */
66 #endif /* !_ANSI_SOURCE */
67 #endif /* !_ALPHA_SIGNAL_H_*/