1/* $OpenBSD: frame.h,v 1.3 2022/02/24 14:19:10 visa 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
53typedef 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 register_t tf_pad;
68} trapframe_t;
69
70/*
71 * pushed on stack for signal delivery
72 */
73struct sigframe {
74 int sf_signum;
75 struct sigcontext sf_sc;
76 siginfo_t sf_si;
77};
78
79/*
80 * System stack frames.
81 */
82
83/*
84 * Stack frame inside cpu_switch()
85 */
86struct switchframe {
87 register_t sf_s[12];
88 register_t sf_ra;
89 register_t sf_pad;
90};
91
92struct callframe {
93 struct callframe *f_frame;
94 register_t f_ra;
95};
96
97#endif /* !_LOCORE */
98
99#endif /* !_MACHINE_FRAME_H_ */