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 * 4. 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 * from: @(#)frame.h 5.2 (Berkeley) 1/18/91 33 * $FreeBSD$ 34 */ 35 36 #ifndef _MACHINE_FRAME_H_ 37 #define _MACHINE_FRAME_H_ 1 38 39 /* 40 * System stack frames. 41 */ 42 43 /* 44 * Exception/Trap Stack Frame 45 */ 46 47 struct trapframe { 48 int tf_fs; 49 int tf_es; 50 int tf_ds; 51 int tf_edi; 52 int tf_esi; 53 int tf_ebp; 54 int tf_isp; 55 int tf_ebx; 56 int tf_edx; 57 int tf_ecx; 58 int tf_eax; 59 int tf_trapno; 60 /* below portion defined in 386 hardware */ 61 int tf_err; 62 int tf_eip; 63 int tf_cs; 64 int tf_eflags; 65 /* below only when crossing rings (e.g. user to kernel) */ 66 int tf_esp; 67 int tf_ss; 68 }; 69 70 /* Superset of trap frame, for traps from virtual-8086 mode */ 71 72 struct trapframe_vm86 { 73 int tf_fs; 74 int tf_es; 75 int tf_ds; 76 int tf_edi; 77 int tf_esi; 78 int tf_ebp; 79 int tf_isp; 80 int tf_ebx; 81 int tf_edx; 82 int tf_ecx; 83 int tf_eax; 84 int tf_trapno; 85 /* below portion defined in 386 hardware */ 86 int tf_err; 87 int tf_eip; 88 int tf_cs; 89 int tf_eflags; 90 /* below only when crossing rings (e.g. user to kernel) */ 91 int tf_esp; 92 int tf_ss; 93 /* below only when switching out of VM86 mode */ 94 int tf_vm86_es; 95 int tf_vm86_ds; 96 int tf_vm86_fs; 97 int tf_vm86_gs; 98 }; 99 100 #endif /* _MACHINE_FRAME_H_ */ 101