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 * $FreeBSD$ 34 */ 35 36 #ifndef _X86_SIGNAL_H 37 #define _X86_SIGNAL_H 1 38 39 /* 40 * Machine-dependent signal definitions 41 */ 42 43 #include <sys/cdefs.h> 44 #include <sys/_sigset.h> 45 46 #ifdef __i386__ 47 typedef int sig_atomic_t; 48 49 #if __BSD_VISIBLE 50 struct sigcontext { 51 struct __sigset sc_mask; /* signal mask to restore */ 52 int sc_onstack; /* sigstack state to restore */ 53 int sc_gs; /* machine state (struct trapframe) */ 54 int sc_fs; 55 int sc_es; 56 int sc_ds; 57 int sc_edi; 58 int sc_esi; 59 int sc_ebp; 60 int sc_isp; 61 int sc_ebx; 62 int sc_edx; 63 int sc_ecx; 64 int sc_eax; 65 int sc_trapno; 66 int sc_err; 67 int sc_eip; 68 int sc_cs; 69 int sc_efl; 70 int sc_esp; 71 int sc_ss; 72 int sc_len; /* sizeof(mcontext_t) */ 73 /* 74 * See <machine/ucontext.h> and <machine/npx.h> for 75 * the following fields. 76 */ 77 int sc_fpformat; 78 int sc_ownedfp; 79 int sc_flags; 80 int sc_fpstate[128] __aligned(16); 81 82 int sc_fsbase; 83 int sc_gsbase; 84 85 int sc_xfpustate; 86 int sc_xfpustate_len; 87 88 int sc_spare2[4]; 89 }; 90 91 #define sc_sp sc_esp 92 #define sc_fp sc_ebp 93 #define sc_pc sc_eip 94 #define sc_ps sc_efl 95 #define sc_eflags sc_efl 96 97 #endif /* __BSD_VISIBLE */ 98 #endif /* __i386__ */ 99 100 #ifdef __amd64__ 101 typedef long sig_atomic_t; 102 103 #if __BSD_VISIBLE 104 /* 105 * Information pushed on stack when a signal is delivered. 106 * This is used by the kernel to restore state following 107 * execution of the signal handler. It is also made available 108 * to the handler to allow it to restore state properly if 109 * a non-standard exit is performed. 110 * 111 * The sequence of the fields/registers after sc_mask in struct 112 * sigcontext must match those in mcontext_t and struct trapframe. 113 */ 114 struct sigcontext { 115 struct __sigset sc_mask; /* signal mask to restore */ 116 long sc_onstack; /* sigstack state to restore */ 117 long sc_rdi; /* machine state (struct trapframe) */ 118 long sc_rsi; 119 long sc_rdx; 120 long sc_rcx; 121 long sc_r8; 122 long sc_r9; 123 long sc_rax; 124 long sc_rbx; 125 long sc_rbp; 126 long sc_r10; 127 long sc_r11; 128 long sc_r12; 129 long sc_r13; 130 long sc_r14; 131 long sc_r15; 132 int sc_trapno; 133 short sc_fs; 134 short sc_gs; 135 long sc_addr; 136 int sc_flags; 137 short sc_es; 138 short sc_ds; 139 long sc_err; 140 long sc_rip; 141 long sc_cs; 142 long sc_rflags; 143 long sc_rsp; 144 long sc_ss; 145 long sc_len; /* sizeof(mcontext_t) */ 146 /* 147 * See <machine/ucontext.h> and <machine/fpu.h> for the following 148 * fields. 149 */ 150 long sc_fpformat; 151 long sc_ownedfp; 152 long sc_fpstate[64] __aligned(16); 153 154 long sc_fsbase; 155 long sc_gsbase; 156 157 long sc_xfpustate; 158 long sc_xfpustate_len; 159 160 long sc_spare[4]; 161 }; 162 #endif /* __BSD_VISIBLE */ 163 #endif /* __amd64__ */ 164 165 #endif 166