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 #if __BSD_VISIBLE 47 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */ 48 #endif 49 50 #ifdef __i386__ 51 typedef int sig_atomic_t; 52 53 #if __BSD_VISIBLE 54 struct sigcontext { 55 struct __sigset sc_mask; /* signal mask to restore */ 56 int sc_onstack; /* sigstack state to restore */ 57 int sc_gs; /* machine state (struct trapframe) */ 58 int sc_fs; 59 int sc_es; 60 int sc_ds; 61 int sc_edi; 62 int sc_esi; 63 int sc_ebp; 64 int sc_isp; 65 int sc_ebx; 66 int sc_edx; 67 int sc_ecx; 68 int sc_eax; 69 int sc_trapno; 70 int sc_err; 71 int sc_eip; 72 int sc_cs; 73 int sc_efl; 74 int sc_esp; 75 int sc_ss; 76 int sc_len; /* sizeof(mcontext_t) */ 77 /* 78 * See <machine/ucontext.h> and <machine/npx.h> for 79 * the following fields. 80 */ 81 int sc_fpformat; 82 int sc_ownedfp; 83 int sc_flags; 84 int sc_fpstate[128] __aligned(16); 85 86 int sc_fsbase; 87 int sc_gsbase; 88 89 int sc_xfpustate; 90 int sc_xfpustate_len; 91 92 int sc_spare2[4]; 93 }; 94 95 #define sc_sp sc_esp 96 #define sc_fp sc_ebp 97 #define sc_pc sc_eip 98 #define sc_ps sc_efl 99 #define sc_eflags sc_efl 100 101 #endif /* __BSD_VISIBLE */ 102 #endif /* __i386__ */ 103 104 #ifdef __amd64__ 105 typedef long sig_atomic_t; 106 107 #if __BSD_VISIBLE 108 /* 109 * Information pushed on stack when a signal is delivered. 110 * This is used by the kernel to restore state following 111 * execution of the signal handler. It is also made available 112 * to the handler to allow it to restore state properly if 113 * a non-standard exit is performed. 114 * 115 * The sequence of the fields/registers after sc_mask in struct 116 * sigcontext must match those in mcontext_t and struct trapframe. 117 */ 118 struct sigcontext { 119 struct __sigset sc_mask; /* signal mask to restore */ 120 long sc_onstack; /* sigstack state to restore */ 121 long sc_rdi; /* machine state (struct trapframe) */ 122 long sc_rsi; 123 long sc_rdx; 124 long sc_rcx; 125 long sc_r8; 126 long sc_r9; 127 long sc_rax; 128 long sc_rbx; 129 long sc_rbp; 130 long sc_r10; 131 long sc_r11; 132 long sc_r12; 133 long sc_r13; 134 long sc_r14; 135 long sc_r15; 136 int sc_trapno; 137 short sc_fs; 138 short sc_gs; 139 long sc_addr; 140 int sc_flags; 141 short sc_es; 142 short sc_ds; 143 long sc_err; 144 long sc_rip; 145 long sc_cs; 146 long sc_rflags; 147 long sc_rsp; 148 long sc_ss; 149 long sc_len; /* sizeof(mcontext_t) */ 150 /* 151 * See <machine/ucontext.h> and <machine/fpu.h> for the following 152 * fields. 153 */ 154 long sc_fpformat; 155 long sc_ownedfp; 156 long sc_fpstate[64] __aligned(16); 157 158 long sc_fsbase; 159 long sc_gsbase; 160 161 long sc_xfpustate; 162 long sc_xfpustate_len; 163 164 long sc_spare[4]; 165 }; 166 #endif /* __BSD_VISIBLE */ 167 #endif /* __amd64__ */ 168 169 #endif 170