1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1986, 1989, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 * Copyright (c) 2003 Peter Wemm.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef _X86_SIGNAL_H
34#define _X86_SIGNAL_H 1
35
36/*
37 * Machine-dependent signal definitions
38 */
39
40#include <sys/cdefs.h>
41#include <sys/_sigset.h>
42
43#ifdef __i386__
44typedef int sig_atomic_t;
45
46#if __BSD_VISIBLE
47struct sigcontext {
48 struct __sigset sc_mask; /* signal mask to restore */
49 int sc_onstack; /* sigstack state to restore */
50 int sc_gs; /* machine state (struct trapframe) */
51 int sc_fs;
52 int sc_es;
53 int sc_ds;
54 int sc_edi;
55 int sc_esi;
56 int sc_ebp;
57 int sc_isp;
58 int sc_ebx;
59 int sc_edx;
60 int sc_ecx;
61 int sc_eax;
62 int sc_trapno;
63 int sc_err;
64 int sc_eip;
65 int sc_cs;
66 int sc_efl;
67 int sc_esp;
68 int sc_ss;
69 int sc_len; /* sizeof(mcontext_t) */
70 /*
71 * See <machine/ucontext.h> and <machine/npx.h> for
72 * the following fields.
73 */
74 int sc_fpformat;
75 int sc_ownedfp;
76 int sc_flags;
77 int sc_fpstate[128] __aligned(16);
78
79 int sc_fsbase;
80 int sc_gsbase;
81
82 int sc_xfpustate;
83 int sc_xfpustate_len;
84
85 int sc_spare2[4];
86};
87
88#define sc_sp sc_esp
89#define sc_fp sc_ebp
90#define sc_pc sc_eip
91#define sc_ps sc_efl
92#define sc_eflags sc_efl
93
94#endif /* __BSD_VISIBLE */
95#endif /* __i386__ */
96
97#ifdef __amd64__
98typedef long sig_atomic_t;
99
100#if __BSD_VISIBLE
101/*
102 * Information pushed on stack when a signal is delivered.
103 * This is used by the kernel to restore state following
104 * execution of the signal handler. It is also made available
105 * to the handler to allow it to restore state properly if
106 * a non-standard exit is performed.
107 *
108 * The sequence of the fields/registers after sc_mask in struct
109 * sigcontext must match those in mcontext_t and struct trapframe.
110 */
111struct sigcontext {
112 struct __sigset sc_mask; /* signal mask to restore */
113 long sc_onstack; /* sigstack state to restore */
114 long sc_rdi; /* machine state (struct trapframe) */
115 long sc_rsi;
116 long sc_rdx;
117 long sc_rcx;
118 long sc_r8;
119 long sc_r9;
120 long sc_rax;
121 long sc_rbx;
122 long sc_rbp;
123 long sc_r10;
124 long sc_r11;
125 long sc_r12;
126 long sc_r13;
127 long sc_r14;
128 long sc_r15;
129 int sc_trapno;
130 short sc_fs;
131 short sc_gs;
132 long sc_addr;
133 int sc_flags;
134 short sc_es;
135 short sc_ds;
136 long sc_err;
137 long sc_rip;
138 long sc_cs;
139 long sc_rflags;
140 long sc_rsp;
141 long sc_ss;
142 long sc_len; /* sizeof(mcontext_t) */
143 /*
144 * See <machine/ucontext.h> and <machine/fpu.h> for the following
145 * fields.
146 */
147 long sc_fpformat;
148 long sc_ownedfp;
149 long sc_fpstate[64] __aligned(16);
150
151 long sc_fsbase;
152 long sc_gsbase;
153
154 long sc_xfpustate;
155 long sc_xfpustate_len;
156
157 long sc_spare[4];
158};
159#endif /* __BSD_VISIBLE */
160#endif /* __amd64__ */
161
162#endif