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__ 46 typedef int sig_atomic_t; 47 48 #if __BSD_VISIBLE 49 struct 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__ 100 typedef 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 */ 113 struct 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 165