frame.h revision 48621
1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)frame.h 5.2 (Berkeley) 1/18/91 37 * $Id: frame.h,v 1.17 1999/05/11 16:29:01 luoqi Exp $ 38 */ 39 40#ifndef _MACHINE_FRAME_H_ 41#define _MACHINE_FRAME_H_ 1 42 43#include <sys/signal.h> 44 45/* 46 * System stack frames. 47 */ 48 49/* 50 * Exception/Trap Stack Frame 51 */ 52 53struct trapframe { 54 int tf_fs; 55 int tf_es; 56 int tf_ds; 57 int tf_edi; 58 int tf_esi; 59 int tf_ebp; 60 int tf_isp; 61 int tf_ebx; 62 int tf_edx; 63 int tf_ecx; 64 int tf_eax; 65 int tf_trapno; 66 /* below portion defined in 386 hardware */ 67 int tf_err; 68 int tf_eip; 69 int tf_cs; 70 int tf_eflags; 71 /* below only when crossing rings (e.g. user to kernel) */ 72 int tf_esp; 73 int tf_ss; 74}; 75 76/* Superset of trap frame, for traps from virtual-8086 mode */ 77 78struct trapframe_vm86 { 79 int tf_fs; 80 int tf_es; 81 int tf_ds; 82 int tf_edi; 83 int tf_esi; 84 int tf_ebp; 85 int tf_isp; 86 int tf_ebx; 87 int tf_edx; 88 int tf_ecx; 89 int tf_eax; 90 int tf_trapno; 91 /* below portion defined in 386 hardware */ 92 int tf_err; 93 int tf_eip; 94 int tf_cs; 95 int tf_eflags; 96 /* below only when crossing rings (e.g. user to kernel) */ 97 int tf_esp; 98 int tf_ss; 99 /* below only when switching out of VM86 mode */ 100 int tf_vm86_es; 101 int tf_vm86_ds; 102 int tf_vm86_fs; 103 int tf_vm86_gs; 104}; 105 106/* Interrupt stack frame */ 107 108struct intrframe { 109 int if_vec; 110 int if_ppl; 111 int if_fs; 112 int if_es; 113 int if_ds; 114 int if_edi; 115 int if_esi; 116 int if_ebp; 117 int :32; 118 int if_ebx; 119 int if_edx; 120 int if_ecx; 121 int if_eax; 122 int :32; /* for compat with trap frame - trapno */ 123 int :32; /* for compat with trap frame - err */ 124 /* below portion defined in 386 hardware */ 125 int if_eip; 126 int if_cs; 127 int if_eflags; 128 /* below only when crossing rings (e.g. user to kernel) */ 129 int if_esp; 130 int if_ss; 131}; 132 133/* frame of clock (same as interrupt frame) */ 134 135struct clockframe { 136 int cf_vec; 137 int cf_ppl; 138 int cf_fs; 139 int cf_es; 140 int cf_ds; 141 int cf_edi; 142 int cf_esi; 143 int cf_ebp; 144 int :32; 145 int cf_ebx; 146 int cf_edx; 147 int cf_ecx; 148 int cf_eax; 149 int :32; /* for compat with trap frame - trapno */ 150 int :32; /* for compat with trap frame - err */ 151 /* below portion defined in 386 hardware */ 152 int cf_eip; 153 int cf_cs; 154 int cf_eflags; 155 /* below only when crossing rings (e.g. user to kernel) */ 156 int cf_esp; 157 int cf_ss; 158}; 159 160/* 161 * Signal frame, arguments passed to application signal handlers. 162 */ 163struct sigframe { 164 /* 165 * The first three members may be used by applications. 166 */ 167 168 register_t sf_signum; 169 170 /* 171 * Either 'int' for old-style FreeBSD handler or 'siginfo_t *' 172 * pointing to sf_siginfo for SA_SIGINFO handlers. 173 */ 174 register_t sf_arg2; 175 176 /* Points to sf_siginfo.si_sc. */ 177 register_t sf_scp; 178 179 /* 180 * The following arguments are not constrained by the 181 * function call protocol. 182 * Applications are not supposed to access these members, 183 * except using the pointers we provide in the first three 184 * arguments. 185 */ 186 char *sf_addr; 187 union { 188 __siginfohandler_t *sf_action; 189 __sighandler_t *sf_handler; 190 } sf_ahu; 191 192 /* In the SA_SIGINFO case, sf_arg2 points here. */ 193 siginfo_t sf_siginfo; 194}; 195 196int kdb_trap __P((int, int, struct trapframe *)); 197extern int (*pmath_emulate) __P((struct trapframe *)); 198 199#define INTR_TO_TRAPFRAME(frame) ((struct trapframe *)&(frame)->if_fs) 200 201#endif /* _MACHINE_FRAME_H_ */ 202