1 /* $NetBSD: frame.h,v 1.12 1995/10/11 04:20:08 mycroft Exp $ */ 2 3 /*- 4 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * William Jolitz. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)frame.h 5.2 (Berkeley) 1/18/91 40 */ 41 42 #include <sys/signal.h> 43 44 /* 45 * System stack frames. 46 */ 47 48 /* 49 * Exception/Trap Stack Frame 50 */ 51 struct trapframe { 52 int tf_es; 53 int tf_ds; 54 int tf_edi; 55 int tf_esi; 56 int tf_ebp; 57 int tf_ebx; 58 int tf_edx; 59 int tf_ecx; 60 int tf_eax; 61 int tf_trapno; 62 /* below portion defined in 386 hardware */ 63 int tf_err; 64 int tf_eip; 65 int tf_cs; 66 int tf_eflags; 67 /* below used when transitting rings (e.g. user to kernel) */ 68 int tf_esp; 69 int tf_ss; 70 /* below used when switching out of VM86 mode */ 71 int tf_vm86_es; 72 int tf_vm86_ds; 73 int tf_vm86_fs; 74 int tf_vm86_gs; 75 }; 76 77 /* 78 * Interrupt stack frame 79 */ 80 struct intrframe { 81 int if_ppl; 82 int if_es; 83 int if_ds; 84 int if_edi; 85 int if_esi; 86 int if_ebp; 87 int if_ebx; 88 int if_edx; 89 int if_ecx; 90 int if_eax; 91 int :32; /* for compat with trap frame - trapno */ 92 int :32; /* for compat with trap frame - err */ 93 /* below portion defined in 386 hardware */ 94 int if_eip; 95 int if_cs; 96 int if_eflags; 97 /* below only when transitting rings (e.g. user to kernel) */ 98 int if_esp; 99 int if_ss; 100 }; 101 102 /* 103 * Stack frame inside cpu_switch() 104 */ 105 struct switchframe { 106 int sf_ppl; 107 int sf_edi; 108 int sf_esi; 109 int sf_ebx; 110 int sf_eip; 111 }; 112 113 /* 114 * Signal frame 115 */ 116 struct sigframe { 117 int sf_signum; 118 int sf_code; 119 struct sigcontext *sf_scp; 120 sig_t sf_handler; 121 struct sigcontext sf_sc; 122 }; 123