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__ 44 typedef int sig_atomic_t; 45 46 #if __BSD_VISIBLE 47 struct 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__ 98 typedef 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 */ 111 struct 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 163