1 /* $NetBSD: frame.h,v 1.5 2002/10/19 00:10:54 bjh21 Exp $ */ 2 3 /*- 4 * Copyright (c) 1994-1997 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * This code is derived from software written for Brini by Mark Brinicombe 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Brini. 21 * 4. The name of the company nor the name of the author may be used to 22 * endorse or promote products derived from this software without specific 23 * prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 26 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 27 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * RiscBSD kernel project 38 * 39 * frame.h 40 * 41 * Stack frames structures 42 * 43 * Created : 30/09/94 44 * 45 * $FreeBSD$ 46 * 47 */ 48 49 #ifndef _MACHINE_FRAME_H_ 50 #define _MACHINE_FRAME_H_ 51 52 #ifndef _LOCORE 53 54 #include <sys/signal.h> 55 #include <sys/ucontext.h> 56 57 58 /* 59 * Trap frame. Pushed onto the kernel stack on a trap (synchronous exception). 60 */ 61 62 typedef struct trapframe { 63 register_t tf_spsr; /* Zero on arm26 */ 64 register_t tf_r0; 65 register_t tf_r1; 66 register_t tf_r2; 67 register_t tf_r3; 68 register_t tf_r4; 69 register_t tf_r5; 70 register_t tf_r6; 71 register_t tf_r7; 72 register_t tf_r8; 73 register_t tf_r9; 74 register_t tf_r10; 75 register_t tf_r11; 76 register_t tf_r12; 77 register_t tf_usr_sp; 78 register_t tf_usr_lr; 79 register_t tf_svc_sp; /* Not used on arm26 */ 80 register_t tf_svc_lr; /* Not used on arm26 */ 81 register_t tf_pc; 82 } trapframe_t; 83 84 /* Register numbers */ 85 #define tf_r13 tf_usr_sp 86 #define tf_r14 tf_usr_lr 87 #define tf_r15 tf_pc 88 /* 89 * * Scheduler activations upcall frame. Pushed onto user stack before 90 * * calling an SA upcall. 91 * */ 92 93 struct saframe { 94 #if 0 /* in registers on entry to upcall */ 95 int sa_type; 96 struct sa_t ** sa_sas; 97 int sa_events; 98 int sa_interrupted; 99 #endif 100 void * sa_arg; 101 }; 102 103 /* 104 * * Signal frame. Pushed onto user stack before calling sigcode. 105 * */ 106 107 /* the pointers are use in the trampoline code to locate the ucontext */ 108 struct sigframe { 109 siginfo_t sf_si; /* actual saved siginfo */ 110 ucontext_t sf_uc; /* actual saved ucontext */ 111 }; 112 113 /* 114 * System stack frames. 115 */ 116 117 118 typedef struct irqframe { 119 unsigned int if_spsr; 120 unsigned int if_r0; 121 unsigned int if_r1; 122 unsigned int if_r2; 123 unsigned int if_r3; 124 unsigned int if_r4; 125 unsigned int if_r5; 126 unsigned int if_r6; 127 unsigned int if_r7; 128 unsigned int if_r8; 129 unsigned int if_r9; 130 unsigned int if_r10; 131 unsigned int if_r11; 132 unsigned int if_r12; 133 unsigned int if_usr_sp; 134 unsigned int if_usr_lr; 135 unsigned int if_svc_sp; 136 unsigned int if_svc_lr; 137 unsigned int if_pc; 138 } irqframe_t; 139 140 /* 141 * Switch frame 142 */ 143 144 struct switchframe { 145 u_int sf_r4; 146 u_int sf_r5; 147 u_int sf_r6; 148 u_int sf_r7; 149 u_int sf_pc; 150 }; 151 152 /* 153 * Stack frame. Used during stack traces (db_trace.c) 154 */ 155 struct frame { 156 u_int fr_fp; 157 u_int fr_sp; 158 u_int fr_lr; 159 u_int fr_pc; 160 }; 161 162 #endif /* !_LOCORE */ 163 164 #endif /* _MACHINE_FRAME_H_ */ 165 166 /* End of frame.h */ 167