signal.h revision 9afe2884c7fe11f862982fd550a2ead688f2044d 
1/*	$OpenBSD: signal.h,v 1.8 2006/01/09 18:18:37 millert Exp $	*/
2
3/*
4 * Copyright (c) 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)signal.h	8.1 (Berkeley) 6/10/93
35 */
36
37#ifndef _MIPS_SIGNAL_H_
38#define _MIPS_SIGNAL_H_
39
40#include <sys/cdefs.h>
41
42#if !defined(__LANGUAGE_ASSEMBLY)
43#include <sys/types.h>
44
45/*
46 * Machine-dependent signal definitions
47 */
48typedef int sig_atomic_t;
49
50#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
51
52/*
53 * Information pushed on stack when a signal is delivered.
54 * This is used by the kernel to restore state following
55 * execution of the signal handler.  It is also made available
56 * to the handler to allow it to restore state properly if
57 * a non-standard exit is performed.
58 */
59
60/*
61 * The Linux and OpenBSD sigcontext structures are slightly different
62 * This is the Linux O32 ABI compatible sigcontext
63 */
64
65struct sigcontext {
66	unsigned int sc_regmask;
67	unsigned int sc_status;
68	unsigned long long sc_pc;
69	unsigned long long sc_regs[32];
70	unsigned long long sc_fpregs[32];
71	unsigned int sc_acx;
72	unsigned int sc_fpc_csr;
73	unsigned int sc_fpc_eir;
74	unsigned int sc_used_math;
75	unsigned int sc_dsp;
76	unsigned long long sc_mdhi;
77	unsigned long long sc_mdlo;
78	unsigned long sc_hi1;
79	unsigned long sc_lo1;
80	unsigned long sc_hi2;
81	unsigned long sc_lo2;
82	unsigned long sc_hi3;
83	unsigned long sc_lo3;
84};
85
86#endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
87
88#else /* __LANGUAGE_ASSEMBLY */
89
90#define	SC_REGMASK	(0*REGSZ)
91#define	SC_STATUS	(1*REGSZ)
92#define	SC_PC		(2*REGSZ)
93#define	SC_REGS		(SC_PC+8)
94#define	SC_FPREGS	(SC_REGS+32*8)
95#define	SC_ACX		(SC_FPREGS+32*REGSZ_FP)
96#define	SC_FPC_CSR	(SC_ACX+1*REGSZ)
97#define	SC_FPC_EIR	(SC_ACX+2*REGSZ)
98#define	SC_USED_MATH	(SC_ACX+3*REGSZ)
99#define	SC_DSP		(SC_ACX+4*REGSZ)
100#define	SC_MDHI		(SC_ACX+5*REGSZ)
101#define	SC_MDLO		(SC_MDHI+8)
102#define	SC_HI1		(SC_MDLO+8)
103#define	SC_LO1		(SC_HI1+1*REGSZ)
104#define	SC_HI2		(SC_HI1+2*REGSZ)
105#define	SC_LO2		(SC_HI1+3*REGSZ)
106#define	SC_HI3		(SC_HI1+4*REGSZ)
107#define	SC_LO3		(SC_HI1+5*REGSZ)
108/* OpenBSD compatibility */
109#define	SC_MASK		SC_REGMASK
110#define	SC_FPUSED	SC_USED_MATH
111
112#endif /* __LANGUAGE_ASSEMBLY */
113
114#endif	/* !_MIPS_SIGNAL_H_ */
115