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: releng/10.0/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
62 typedef 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
94 struct 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 */
109 struct 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
119 typedef 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
148 struct 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 */
160 struct 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_ */
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