1 /* $OpenBSD: frame.h,v 1.5 2003/06/02 23:27:47 millert 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. 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 * @(#)frame.h 5.2 (Berkeley) 1/18/91 37 */ 38 39 #include <sys/signal.h> 40 41 /* 42 * System stack frames. 43 */ 44 45 /* 46 * Exception/Trap Stack Frame 47 */ 48 struct trapframe { 49 int tf_es; 50 int tf_ds; 51 int tf_edi; 52 int tf_esi; 53 int tf_ebp; 54 int tf_ebx; 55 int tf_edx; 56 int tf_ecx; 57 int tf_eax; 58 int tf_trapno; 59 /* below portion defined in 386 hardware */ 60 int tf_err; 61 int tf_eip; 62 int tf_cs; 63 int tf_eflags; 64 /* below used when transitting rings (e.g. user to kernel) */ 65 int tf_esp; 66 int tf_ss; 67 /* below used when switching out of VM86 mode */ 68 int tf_vm86_es; 69 int tf_vm86_ds; 70 int tf_vm86_fs; 71 int tf_vm86_gs; 72 }; 73 74 /* 75 * Interrupt stack frame 76 */ 77 struct intrframe { 78 int if_ppl; 79 int if_es; 80 int if_ds; 81 int if_edi; 82 int if_esi; 83 int if_ebp; 84 int if_ebx; 85 int if_edx; 86 int if_ecx; 87 int if_eax; 88 int :32; /* for compat with trap frame - trapno */ 89 int :32; /* for compat with trap frame - err */ 90 /* below portion defined in 386 hardware */ 91 int if_eip; 92 int if_cs; 93 int if_eflags; 94 /* below only when transitting rings (e.g. user to kernel) */ 95 int if_esp; 96 int if_ss; 97 }; 98 99 /* 100 * Stack frame inside cpu_switch() 101 */ 102 struct switchframe { 103 int sf_ppl; 104 int sf_edi; 105 int sf_esi; 106 int sf_ebx; 107 int sf_eip; 108 }; 109 110 /* 111 * Signal frame 112 */ 113 struct sigframe { 114 int sf_signum; 115 siginfo_t *sf_sip; 116 struct sigcontext *sf_scp; 117 sig_t sf_handler; 118 struct sigcontext sf_sc; 119 siginfo_t sf_si; 120 }; 121