1/* $NetBSD: signal.h,v 1.20 2021/10/30 19:54:58 thorpej Exp $ */
2
3/*
4 * Copyright (c) 1994-1996 Mark Brinicombe.
5 * Copyright (c) 1994 Brini.
6 * All rights reserved.
7 *
8 * This code is derived from software written for Brini by Mark Brinicombe
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. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by Brini.
21 * 4. The name of the company nor the name of the author may be used to
22 * endorse or promote products derived from this software without specific
23 * prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * RiscBSD kernel project
38 *
39 * signal.h
40 *
41 * Architecture dependent signal types and structures
42 *
43 * Created : 30/09/94
44 */
45
46#ifndef _ARM_SIGNAL_H_
47#define _ARM_SIGNAL_H_
48
49#include <sys/featuretest.h>
50#include <sys/sigtypes.h>
51
52#ifndef _LOCORE
53typedef int sig_atomic_t;
54#endif
55
56#if defined(__arm__)
57
58#define __HAVE_STRUCT_SIGCONTEXT
59
60#if defined(_NETBSD_SOURCE)
61
62#ifndef _LOCORE
63/*
64 * Information pushed on stack when a signal is delivered.
65 * This is used by the kernel to restore state following
66 * execution of the signal handler. It is also made available
67 * to the handler to allow it to restore state properly if
68 * a non-standard exit is performed.
69 */
70
71#if defined(_KERNEL)
72struct sigcontext13 {
73 int sc_onstack; /* sigstack state to restore */
74 int sc_mask; /* signal mask to restore (old style) */
75
76 unsigned int sc_spsr;
77 unsigned int sc_r0;
78 unsigned int sc_r1;
79 unsigned int sc_r2;
80 unsigned int sc_r3;
81 unsigned int sc_r4;
82 unsigned int sc_r5;
83 unsigned int sc_r6;
84 unsigned int sc_r7;
85 unsigned int sc_r8;
86 unsigned int sc_r9;
87 unsigned int sc_r10;
88 unsigned int sc_r11;
89 unsigned int sc_r12;
90 unsigned int sc_usr_sp;
91 unsigned int sc_usr_lr;
92 unsigned int sc_svc_lr;
93 unsigned int sc_pc;
94};
95#endif /* _KERNEL */
96
97#if defined(_LIBC) || defined(_KERNEL)
98struct sigcontext {
99 int sc_onstack; /* sigstack state to restore */
100 int __sc_mask13; /* signal mask to restore (old style) */
101
102 unsigned int sc_spsr;
103 unsigned int sc_r0;
104 unsigned int sc_r1;
105 unsigned int sc_r2;
106 unsigned int sc_r3;
107 unsigned int sc_r4;
108 unsigned int sc_r5;
109 unsigned int sc_r6;
110 unsigned int sc_r7;
111 unsigned int sc_r8;
112 unsigned int sc_r9;
113 unsigned int sc_r10;
114 unsigned int sc_r11;
115 unsigned int sc_r12;
116 unsigned int sc_usr_sp;
117 unsigned int sc_usr_lr;
118 unsigned int sc_svc_lr;
119 unsigned int sc_pc;
120
121 sigset_t sc_mask; /* signal mask to restore (new style) */
122};
123#endif /* _LIBC || _KERNEL */
124
125#endif /* !_LOCORE */
126
127/* Signals codes */
128
129/*
130 * SIGFPE codes
131 *
132 * see ieeefp.h for definition of FP exception codes
133 */
134
135#define SIG_CODE_FPE_CODE_MASK 0x00000f00 /* Mask for exception code */
136#define SIG_CODE_FPE_CODE_SHIFT 8 /* Shift for exception code */
137#define SIG_CODE_FPE_TYPE_MASK 0x000000ff /* Mask for specific code */
138
139/*
140 * SIGILL codes
141 *
142 * the signal code is the instruction that raised the signal
143 */
144
145/*
146 * SIGBUS and SIGSEGV codes
147 *
148 * The signal code is combination of the fault address and the fault code.
149 *
150 * The fault code is the coproc #15 fault status code
151 *
152 * The exception to this is a SIGBUS or SIGSEGV from a prefetch abort.
153 * In this case the fault status code is not valid so the TYPE_MASK
154 * should be treated as undefined (in practice it is the bottom 4 bits
155 * of the fault address).
156 */
157
158#define SIG_CODE_BUS_ADDR_MASK 0xfffffff0
159#define SIG_CODE_BUS_TYPE_MASK 0x0000000f
160#define SIG_CODE_SEGV_ADDR_MASK SIG_CODE_BUS_ADDR_MASK
161#define SIG_CODE_SEGV_TYPE_MASK SIG_CODE_BUS_TYPE_MASK
162
163#endif /* _NETBSD_SOURCE */
164#endif /* __arm__ */
165#endif /* !_ARM_SIGNAL_H_ */
166
167/* End of signal.h */