frame.h revision 253968 
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: head/sys/arm/include/frame.h 253968 2013-08-05 19:06:28Z andrew $
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
62typedef 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	register_t tf_pad;
83} trapframe_t;
84
85/* Register numbers */
86#define tf_r13 tf_usr_sp
87#define tf_r14 tf_usr_lr
88#define tf_r15 tf_pc
89/*
90 *  * Scheduler activations upcall frame.  Pushed onto user stack before
91 *   * calling an SA upcall.
92 *    */
93
94struct saframe {
95#if 0 /* in registers on entry to upcall */
96	int             sa_type;
97	struct sa_t **  sa_sas;
98	int             sa_events;
99	int             sa_interrupted;
100#endif
101	void *          sa_arg;
102};
103
104/*
105 *  * Signal frame.  Pushed onto user stack before calling sigcode.
106 *   */
107
108/* the pointers are use in the trampoline code to locate the ucontext */
109struct sigframe {
110       	siginfo_t       sf_si;          /* actual saved siginfo */
111	ucontext_t      sf_uc;          /* actual saved ucontext */
112};
113
114/*
115 * System stack frames.
116 */
117
118
119typedef struct irqframe {
120	unsigned int if_spsr;
121	unsigned int if_r0;
122	unsigned int if_r1;
123	unsigned int if_r2;
124	unsigned int if_r3;
125	unsigned int if_r4;
126	unsigned int if_r5;
127	unsigned int if_r6;
128	unsigned int if_r7;
129	unsigned int if_r8;
130	unsigned int if_r9;
131	unsigned int if_r10;
132	unsigned int if_r11;
133	unsigned int if_r12;
134	unsigned int if_usr_sp;
135	unsigned int if_usr_lr;
136	unsigned int if_svc_sp;
137	unsigned int if_svc_lr;
138	unsigned int if_pc;
139} irqframe_t;
140
141/*
142 * Switch frame.
143 *
144 * It is important this is a multiple of 8 bytes so the stack is correctly
145 * aligned when we create new threads.
146 */
147
148struct switchframe {
149	u_int	pad;	/* Used to pad the struct to a multiple of 8-bytes */
150	u_int	sf_r4;
151	u_int	sf_r5;
152	u_int	sf_r6;
153	u_int	sf_r7;
154	u_int	sf_pc;
155};
156
157/*
158 * Stack frame. Used during stack traces (db_trace.c)
159 */
160struct frame {
161	u_int	fr_fp;
162	u_int	fr_sp;
163	u_int	fr_lr;
164	u_int	fr_pc;
165};
166
167#endif /* !_LOCORE */
168
169#endif /* _MACHINE_FRAME_H_ */
170