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/*
61 * Trap frame.  Pushed onto the kernel stack on a trap (synchronous exception).
62 */
63
64struct trapframe {
65	register_t tf_spsr; /* Zero on arm26 */
66	register_t tf_r0;
67	register_t tf_r1;
68	register_t tf_r2;
69	register_t tf_r3;
70	register_t tf_r4;
71	register_t tf_r5;
72	register_t tf_r6;
73	register_t tf_r7;
74	register_t tf_r8;
75	register_t tf_r9;
76	register_t tf_r10;
77	register_t tf_r11;
78	register_t tf_r12;
79	register_t tf_usr_sp;
80	register_t tf_usr_lr;
81	register_t tf_svc_sp; /* Not used on arm26 */
82	register_t tf_svc_lr; /* Not used on arm26 */
83	register_t tf_pc;
84	register_t tf_pad;
85};
86
87/* Register numbers */
88#define tf_r13 tf_usr_sp
89#define tf_r14 tf_usr_lr
90#define tf_r15 tf_pc
91
92/*
93 * Signal frame.  Pushed onto user stack before calling sigcode.
94 * The pointers are used in the trampoline code to locate the ucontext.
95 */
96struct sigframe {
97	siginfo_t       sf_si;          /* actual saved siginfo */
98	ucontext_t      sf_uc;          /* actual saved ucontext */
99	mcontext_vfp_t	sf_vfp;         /* actual saved VFP context */
100};
101
102
103/*
104 * Switch frame.
105 *
106 * It is important this is a multiple of 8 bytes so the stack is correctly
107 * aligned when we create new threads.
108 */
109struct switchframe
110{
111        register_t sf_r4;
112        register_t sf_r5;
113        register_t sf_r6;
114        register_t sf_r7;
115        register_t sf_r8;
116        register_t sf_r9;
117        register_t sf_r10;
118        register_t sf_r11;
119        register_t sf_r12;
120        register_t sf_sp;
121        register_t sf_lr;
122        register_t sf_pc;
123#if __ARM_ARCH >= 6
124        register_t sf_tpidrurw;
125        register_t sf_spare0;
126#endif
127};
128
129
130/*
131 * Stack frame. Used during stack traces (db_trace.c)
132 */
133struct frame {
134	u_int	fr_fp;
135	u_int	fr_sp;
136	u_int	fr_lr;
137	u_int	fr_pc;
138};
139
140#endif /* !_LOCORE */
141
142#endif /* _MACHINE_FRAME_H_ */
143