1 /*- 2 * Copyright (c) 1986, 1989, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 2003 Peter Wemm. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 4. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)signal.h 8.1 (Berkeley) 6/11/93 31 * $FreeBSD$ 32 */ 33 34 #ifndef _X86_SIGNAL_H 35 #define _X86_SIGNAL_H 1 36 37 /* 38 * Machine-dependent signal definitions 39 */ 40 41 #include <sys/cdefs.h> 42 #include <sys/_sigset.h> 43 44 #if __BSD_VISIBLE 45 #include <machine/trap.h> /* codes for SIGILL, SIGFPE */ 46 #endif 47 48 #if defined(__i386__) && !defined(__amd64__) 49 typedef int sig_atomic_t; 50 51 #if __BSD_VISIBLE 52 struct sigcontext { 53 struct __sigset sc_mask; /* signal mask to restore */ 54 int sc_onstack; /* sigstack state to restore */ 55 int sc_gs; /* machine state (struct trapframe) */ 56 int sc_fs; 57 int sc_es; 58 int sc_ds; 59 int sc_edi; 60 int sc_esi; 61 int sc_ebp; 62 int sc_isp; 63 int sc_ebx; 64 int sc_edx; 65 int sc_ecx; 66 int sc_eax; 67 int sc_trapno; 68 int sc_err; 69 int sc_eip; 70 int sc_cs; 71 int sc_efl; 72 int sc_esp; 73 int sc_ss; 74 int sc_len; /* sizeof(mcontext_t) */ 75 /* 76 * See <machine/ucontext.h> and <machine/npx.h> for 77 * the following fields. 78 */ 79 int sc_fpformat; 80 int sc_ownedfp; 81 int sc_flags; 82 int sc_fpstate[128] __aligned(16); 83 84 int sc_fsbase; 85 int sc_gsbase; 86 87 int sc_xfpustate; 88 int sc_xfpustate_len; 89 90 int sc_spare2[4]; 91 }; 92 93 #define sc_sp sc_esp 94 #define sc_fp sc_ebp 95 #define sc_pc sc_eip 96 #define sc_ps sc_efl 97 #define sc_eflags sc_efl 98 99 #endif /* __BSD_VISIBLE */ 100 #endif /* __i386__ */ 101 102 #ifdef __amd64__ 103 typedef long sig_atomic_t; 104 105 #if __BSD_VISIBLE 106 /* 107 * Information pushed on stack when a signal is delivered. 108 * This is used by the kernel to restore state following 109 * execution of the signal handler. It is also made available 110 * to the handler to allow it to restore state properly if 111 * a non-standard exit is performed. 112 * 113 * The sequence of the fields/registers after sc_mask in struct 114 * sigcontext must match those in mcontext_t and struct trapframe. 115 */ 116 struct sigcontext { 117 struct __sigset sc_mask; /* signal mask to restore */ 118 long sc_onstack; /* sigstack state to restore */ 119 long sc_rdi; /* machine state (struct trapframe) */ 120 long sc_rsi; 121 long sc_rdx; 122 long sc_rcx; 123 long sc_r8; 124 long sc_r9; 125 long sc_rax; 126 long sc_rbx; 127 long sc_rbp; 128 long sc_r10; 129 long sc_r11; 130 long sc_r12; 131 long sc_r13; 132 long sc_r14; 133 long sc_r15; 134 int sc_trapno; 135 short sc_fs; 136 short sc_gs; 137 long sc_addr; 138 int sc_flags; 139 short sc_es; 140 short sc_ds; 141 long sc_err; 142 long sc_rip; 143 long sc_cs; 144 long sc_rflags; 145 long sc_rsp; 146 long sc_ss; 147 long sc_len; /* sizeof(mcontext_t) */ 148 /* 149 * See <machine/ucontext.h> and <machine/fpu.h> for the following 150 * fields. 151 */ 152 long sc_fpformat; 153 long sc_ownedfp; 154 long sc_fpstate[64] __aligned(16); 155 156 long sc_fsbase; 157 long sc_gsbase; 158 159 long sc_xfpustate; 160 long sc_xfpustate_len; 161 162 long sc_spare[4]; 163 }; 164 #endif /* __BSD_VISIBLE */ 165 #endif /* __amd64__ */ 166 167 #endif 168