master
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 * @(#)signal.h 8.1 (Berkeley) 6/11/93
33 */
34
35#ifndef _X86_SIGNAL_H
36#define _X86_SIGNAL_H 1
37
38/*
39 * Machine-dependent signal definitions
40 */
41
42#include <sys/cdefs.h>
43#include <sys/_sigset.h>
44
45#ifdef __i386__
46typedef int sig_atomic_t;
47
48#if __BSD_VISIBLE
49struct sigcontext {
50 struct __sigset sc_mask; /* signal mask to restore */
51 int sc_onstack; /* sigstack state to restore */
52 int sc_gs; /* machine state (struct trapframe) */
53 int sc_fs;
54 int sc_es;
55 int sc_ds;
56 int sc_edi;
57 int sc_esi;
58 int sc_ebp;
59 int sc_isp;
60 int sc_ebx;
61 int sc_edx;
62 int sc_ecx;
63 int sc_eax;
64 int sc_trapno;
65 int sc_err;
66 int sc_eip;
67 int sc_cs;
68 int sc_efl;
69 int sc_esp;
70 int sc_ss;
71 int sc_len; /* sizeof(mcontext_t) */
72 /*
73 * See <machine/ucontext.h> and <machine/npx.h> for
74 * the following fields.
75 */
76 int sc_fpformat;
77 int sc_ownedfp;
78 int sc_flags;
79 int sc_fpstate[128] __aligned(16);
80
81 int sc_fsbase;
82 int sc_gsbase;
83
84 int sc_xfpustate;
85 int sc_xfpustate_len;
86
87 int sc_spare2[4];
88};
89
90#define sc_sp sc_esp
91#define sc_fp sc_ebp
92#define sc_pc sc_eip
93#define sc_ps sc_efl
94#define sc_eflags sc_efl
95
96#endif /* __BSD_VISIBLE */
97#endif /* __i386__ */
98
99#ifdef __amd64__
100typedef long sig_atomic_t;
101
102#if __BSD_VISIBLE
103/*
104 * Information pushed on stack when a signal is delivered.
105 * This is used by the kernel to restore state following
106 * execution of the signal handler. It is also made available
107 * to the handler to allow it to restore state properly if
108 * a non-standard exit is performed.
109 *
110 * The sequence of the fields/registers after sc_mask in struct
111 * sigcontext must match those in mcontext_t and struct trapframe.
112 */
113struct sigcontext {
114 struct __sigset sc_mask; /* signal mask to restore */
115 long sc_onstack; /* sigstack state to restore */
116 long sc_rdi; /* machine state (struct trapframe) */
117 long sc_rsi;
118 long sc_rdx;
119 long sc_rcx;
120 long sc_r8;
121 long sc_r9;
122 long sc_rax;
123 long sc_rbx;
124 long sc_rbp;
125 long sc_r10;
126 long sc_r11;
127 long sc_r12;
128 long sc_r13;
129 long sc_r14;
130 long sc_r15;
131 int sc_trapno;
132 short sc_fs;
133 short sc_gs;
134 long sc_addr;
135 int sc_flags;
136 short sc_es;
137 short sc_ds;
138 long sc_err;
139 long sc_rip;
140 long sc_cs;
141 long sc_rflags;
142 long sc_rsp;
143 long sc_ss;
144 long sc_len; /* sizeof(mcontext_t) */
145 /*
146 * See <machine/ucontext.h> and <machine/fpu.h> for the following
147 * fields.
148 */
149 long sc_fpformat;
150 long sc_ownedfp;
151 long sc_fpstate[64] __aligned(16);
152
153 long sc_fsbase;
154 long sc_gsbase;
155
156 long sc_xfpustate;
157 long sc_xfpustate_len;
158
159 long sc_spare[4];
160};
161#endif /* __BSD_VISIBLE */
162#endif /* __amd64__ */
163
164#endif