1 /* $OpenBSD: frame.h,v 1.2 2021/05/12 01:20:52 jsg Exp $ */ 2 3 /* 4 * Copyright (c) 2019 Brian Bamsch <bbamsch@google.com> 5 * Copyright (c) 2016 Dale Rahn <drahn@dalerahn.com> 6 * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com> 7 * All rights reserved. 8 * 9 * Portions of this software were developed by SRI International and the 10 * University of Cambridge Computer Laboratory under DARPA/AFRL contract 11 * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme. 12 * 13 * Portions of this software were developed by the University of Cambridge 14 * Computer Laboratory as part of the CTSRD Project, with support from the 15 * UK Higher Education Innovation Fund (HEIF). 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. Neither the name of the copyright holder nor the names of its 26 * contributors may be used to endorse or promote products derived from 27 * this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 */ 41 42 #ifndef _MACHINE_FRAME_H_ 43 #define _MACHINE_FRAME_H_ 44 45 #ifndef _LOCORE 46 47 #include <sys/signal.h> 48 49 /* 50 * Exception/Trap Stack Frame 51 */ 52 #define clockframe trapframe 53 typedef struct trapframe { 54 /* Standard Registers */ 55 register_t tf_ra; 56 register_t tf_sp; 57 register_t tf_gp; 58 register_t tf_tp; 59 register_t tf_t[7]; 60 register_t tf_s[12]; 61 register_t tf_a[8]; 62 /* Supervisor Trap CSRs */ 63 register_t tf_sepc; 64 register_t tf_sstatus; 65 register_t tf_stval; 66 register_t tf_scause; 67 } trapframe_t; 68 69 /* 70 * pushed on stack for signal delivery 71 */ 72 struct sigframe { 73 int sf_signum; 74 struct sigcontext sf_sc; 75 siginfo_t sf_si; 76 }; 77 78 /* 79 * System stack frames. 80 */ 81 82 /* 83 * Stack frame inside cpu_switch() 84 */ 85 struct switchframe { 86 register_t sf_s[12]; 87 register_t sf_ra; 88 }; 89 90 struct callframe { 91 struct callframe *f_frame; 92 register_t f_ra; 93 }; 94 95 #endif /* !_LOCORE */ 96 97 #endif /* !_MACHINE_FRAME_H_ */ 98