1 /* $NetBSD: frame.h,v 1.33 2008/11/14 13:05:34 ad 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1990 The Regents of the University of California. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to Berkeley by 37 * William Jolitz. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 * 63 * @(#)frame.h 5.2 (Berkeley) 1/18/91 64 */ 65 66 #ifndef _I386_FRAME_H_ 67 #define _I386_FRAME_H_ 68 69 #include <sys/signal.h> 70 #include <sys/sa.h> 71 72 /* 73 * System stack frames. 74 */ 75 76 /* 77 * Exception/Trap Stack Frame 78 */ 79 struct trapframe { 80 int tf_gs; 81 int tf_fs; 82 int tf_es; 83 int tf_ds; 84 int tf_edi; 85 int tf_esi; 86 int tf_ebp; 87 int tf_ebx; 88 int tf_edx; 89 int tf_ecx; 90 int tf_eax; 91 int tf_trapno; 92 /* below portion defined in 386 hardware */ 93 int tf_err; 94 int tf_eip; 95 int tf_cs; 96 int tf_eflags; 97 /* below used when transitting rings (e.g. user to kernel) */ 98 int tf_esp; 99 int tf_ss; 100 /* below used when switching out of VM86 mode */ 101 int tf_vm86_es; 102 int tf_vm86_ds; 103 int tf_vm86_fs; 104 int tf_vm86_gs; 105 }; 106 107 /* 108 * Interrupt stack frame 109 */ 110 struct intrframe { 111 int if_ppl; 112 int if_gs; 113 int if_fs; 114 int if_es; 115 int if_ds; 116 int if_edi; 117 int if_esi; 118 int if_ebp; 119 int if_ebx; 120 int if_edx; 121 int if_ecx; 122 int if_eax; 123 uint32_t __if_trapno; /* for compat with trap frame - trapno */ 124 uint32_t __if_err; /* for compat with trap frame - err */ 125 /* below portion defined in 386 hardware */ 126 int if_eip; 127 int if_cs; 128 int if_eflags; 129 /* below only when transitting rings (e.g. user to kernel) */ 130 int if_esp; 131 int if_ss; 132 }; 133 134 /* 135 * Stack frame inside cpu_switchto() 136 */ 137 struct switchframe { 138 int sf_edi; 139 int sf_esi; 140 int sf_ebx; 141 int sf_eip; 142 }; 143 144 #ifdef _KERNEL 145 /* 146 * Old-style signal frame 147 */ 148 struct sigframe_sigcontext { 149 int sf_ra; /* return address for handler */ 150 int sf_signum; /* "signum" argument for handler */ 151 int sf_code; /* "code" argument for handler */ 152 struct sigcontext *sf_scp; /* "scp" argument for handler */ 153 struct sigcontext sf_sc; /* actual saved context */ 154 }; 155 #endif 156 157 /* 158 * New-style signal frame 159 */ 160 struct sigframe_siginfo { 161 int sf_ra; /* return address for handler */ 162 int sf_signum; /* "signum" argument for handler */ 163 siginfo_t *sf_sip; /* "sip" argument for handler */ 164 ucontext_t *sf_ucp; /* "ucp" argument for handler */ 165 siginfo_t sf_si; /* actual saved siginfo */ 166 ucontext_t sf_uc; /* actual saved ucontext */ 167 }; 168 169 /* 170 * Scheduler activations upcall frame 171 */ 172 struct saframe { 173 int sa_ra; 174 int sa_type; 175 struct sa_t** sa_sas; 176 int sa_events; 177 int sa_interrupted; 178 void* sa_arg; 179 }; 180 181 #ifdef _KERNEL 182 void *getframe(struct lwp *, int, int *); 183 void buildcontext(struct lwp *, int, void *, void *); 184 void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *); 185 #endif 186 187 #endif /* _I386_FRAME_H_ */ 188