1 /* $OpenBSD: frame.h,v 1.4 2000/08/05 22:07:31 niklas Exp $ */ 2 /* $NetBSD: frame.h,v 1.12 1995/10/11 04:20:08 mycroft Exp $ */ 3 4 /*- 5 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 6 * Copyright (c) 1990 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * William Jolitz. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)frame.h 5.2 (Berkeley) 1/18/91 41 */ 42 43 #include <sys/signal.h> 44 45 /* 46 * System stack frames. 47 */ 48 49 /* 50 * Exception/Trap Stack Frame 51 */ 52 struct trapframe { 53 int tf_es; 54 int tf_ds; 55 int tf_edi; 56 int tf_esi; 57 int tf_ebp; 58 int tf_ebx; 59 int tf_edx; 60 int tf_ecx; 61 int tf_eax; 62 int tf_trapno; 63 /* below portion defined in 386 hardware */ 64 int tf_err; 65 int tf_eip; 66 int tf_cs; 67 int tf_eflags; 68 /* below used when transitting rings (e.g. user to kernel) */ 69 int tf_esp; 70 int tf_ss; 71 /* below used when switching out of VM86 mode */ 72 int tf_vm86_es; 73 int tf_vm86_ds; 74 int tf_vm86_fs; 75 int tf_vm86_gs; 76 }; 77 78 /* 79 * Interrupt stack frame 80 */ 81 struct intrframe { 82 int if_ppl; 83 int if_es; 84 int if_ds; 85 int if_edi; 86 int if_esi; 87 int if_ebp; 88 int if_ebx; 89 int if_edx; 90 int if_ecx; 91 int if_eax; 92 int :32; /* for compat with trap frame - trapno */ 93 int :32; /* for compat with trap frame - err */ 94 /* below portion defined in 386 hardware */ 95 int if_eip; 96 int if_cs; 97 int if_eflags; 98 /* below only when transitting rings (e.g. user to kernel) */ 99 int if_esp; 100 int if_ss; 101 }; 102 103 /* 104 * Stack frame inside cpu_switch() 105 */ 106 struct switchframe { 107 int sf_ppl; 108 int sf_edi; 109 int sf_esi; 110 int sf_ebx; 111 int sf_eip; 112 }; 113 114 /* 115 * Signal frame 116 */ 117 struct sigframe { 118 int sf_signum; 119 siginfo_t *sf_sip; 120 struct sigcontext *sf_scp; 121 sig_t sf_handler; 122 struct sigcontext sf_sc; 123 siginfo_t sf_si; 124 }; 125