1 /* $NetBSD: frame.h,v 1.5 2002/10/19 00:10:54 bjh21 Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 5 * 6 * Copyright (c) 1994-1997 Mark Brinicombe. 7 * Copyright (c) 1994 Brini. 8 * All rights reserved. 9 * 10 * This code is derived from software written for Brini by Mark Brinicombe 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 Brini. 23 * 4. The name of the company nor the name of the author may be used to 24 * endorse or promote products derived from this software without specific 25 * prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 28 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 29 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 30 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 31 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 32 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 33 * 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 * RiscBSD kernel project 40 * 41 * frame.h 42 * 43 * Stack frames structures 44 * 45 * Created : 30/09/94 46 * 47 * $FreeBSD$ 48 * 49 */ 50 51 #ifndef _MACHINE_FRAME_H_ 52 #define _MACHINE_FRAME_H_ 53 54 #ifndef _LOCORE 55 56 #include <sys/signal.h> 57 #include <sys/ucontext.h> 58 59 /* 60 * Trap frame. Pushed onto the kernel stack on a trap (synchronous exception). 61 */ 62 63 struct trapframe { 64 register_t tf_spsr; /* Zero on arm26 */ 65 register_t tf_r0; 66 register_t tf_r1; 67 register_t tf_r2; 68 register_t tf_r3; 69 register_t tf_r4; 70 register_t tf_r5; 71 register_t tf_r6; 72 register_t tf_r7; 73 register_t tf_r8; 74 register_t tf_r9; 75 register_t tf_r10; 76 register_t tf_r11; 77 register_t tf_r12; 78 register_t tf_usr_sp; 79 register_t tf_usr_lr; 80 register_t tf_svc_sp; /* Not used on arm26 */ 81 register_t tf_svc_lr; /* Not used on arm26 */ 82 register_t tf_pc; 83 register_t tf_pad; 84 }; 85 86 /* Register numbers */ 87 #define tf_r13 tf_usr_sp 88 #define tf_r14 tf_usr_lr 89 #define tf_r15 tf_pc 90 91 /* 92 * Signal frame. Pushed onto user stack before calling sigcode. 93 * The pointers are used in the trampoline code to locate the ucontext. 94 */ 95 struct sigframe { 96 siginfo_t sf_si; /* actual saved siginfo */ 97 ucontext_t sf_uc; /* actual saved ucontext */ 98 mcontext_vfp_t sf_vfp; /* actual saved VFP context */ 99 }; 100 101 /* 102 * Switch frame. 103 * 104 * It is important this is a multiple of 8 bytes so the stack is correctly 105 * aligned when we create new threads. 106 */ 107 struct switchframe 108 { 109 register_t sf_r4; 110 register_t sf_r5; 111 register_t sf_r6; 112 register_t sf_r7; 113 register_t sf_r8; 114 register_t sf_r9; 115 register_t sf_r10; 116 register_t sf_r11; 117 register_t sf_r12; 118 register_t sf_sp; 119 register_t sf_lr; 120 register_t sf_pc; 121 register_t sf_tpidrurw; 122 register_t sf_spare0; 123 }; 124 125 /* 126 * Stack frame. Used during stack traces (db_trace.c) 127 */ 128 struct frame { 129 u_int fr_fp; 130 u_int fr_sp; 131 u_int fr_lr; 132 u_int fr_pc; 133 }; 134 135 #endif /* !_LOCORE */ 136 137 #endif /* _MACHINE_FRAME_H_ */ 138