1 /* $NetBSD: frame.h,v 1.19 2002/11/22 15:23:46 fvdl Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /*- 40 * Copyright (c) 1990 The Regents of the University of California. 41 * All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * William Jolitz. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * @(#)frame.h 5.2 (Berkeley) 1/18/91 75 */ 76 77 #ifndef _I386_FRAME_H_ 78 #define _I386_FRAME_H_ 79 80 #include <sys/signal.h> 81 82 /* 83 * System stack frames. 84 */ 85 86 /* 87 * Exception/Trap Stack Frame 88 */ 89 struct trapframe { 90 int tf_gs; 91 int tf_fs; 92 int tf_es; 93 int tf_ds; 94 int tf_edi; 95 int tf_esi; 96 int tf_ebp; 97 int tf_ebx; 98 int tf_edx; 99 int tf_ecx; 100 int tf_eax; 101 int tf_trapno; 102 /* below portion defined in 386 hardware */ 103 int tf_err; 104 int tf_eip; 105 int tf_cs; 106 int tf_eflags; 107 /* below used when transitting rings (e.g. user to kernel) */ 108 int tf_esp; 109 int tf_ss; 110 /* below used when switching out of VM86 mode */ 111 int tf_vm86_es; 112 int tf_vm86_ds; 113 int tf_vm86_fs; 114 int tf_vm86_gs; 115 }; 116 117 /* 118 * Interrupt stack frame 119 */ 120 struct intrframe { 121 int if_ppl; 122 int if_gs; 123 int if_fs; 124 int if_es; 125 int if_ds; 126 int if_edi; 127 int if_esi; 128 int if_ebp; 129 int if_ebx; 130 int if_edx; 131 int if_ecx; 132 int if_eax; 133 u_int32_t __if_trapno; /* for compat with trap frame - trapno */ 134 u_int32_t __if_err; /* for compat with trap frame - err */ 135 /* below portion defined in 386 hardware */ 136 int if_eip; 137 int if_cs; 138 int if_eflags; 139 /* below only when transitting rings (e.g. user to kernel) */ 140 int if_esp; 141 int if_ss; 142 }; 143 144 /* 145 * Stack frame inside cpu_switch() 146 */ 147 struct switchframe { 148 int sf_edi; 149 int sf_esi; 150 int sf_ebx; 151 int sf_eip; 152 }; 153 154 /* 155 * Signal frame 156 */ 157 struct sigframe { 158 int sf_ra; /* return address for handler */ 159 int sf_signum; /* "signum" argument for handler */ 160 int sf_code; /* "code" argument for handler */ 161 struct sigcontext *sf_scp; /* "scp" argument for handler */ 162 struct sigcontext sf_sc; /* actual saved context */ 163 }; 164 165 #endif /* _I386_FRAME_H_ */ 166