xref: /freebsd/sys/arm/include/frame.h (revision 98e0ffaefb0f241cda3a72395d3be04192ae0d47)
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  * $FreeBSD$
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 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 };
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 /*
91  * Signal frame.  Pushed onto user stack before calling sigcode.
92  * The pointers are used in the trampoline code to locate the ucontext.
93  */
94 struct sigframe {
95 	siginfo_t       sf_si;          /* actual saved siginfo */
96 	ucontext_t      sf_uc;          /* actual saved ucontext */
97 };
98 
99 
100 /*
101  * Switch frame.
102  *
103  * It is important this is a multiple of 8 bytes so the stack is correctly
104  * aligned when we create new threads.
105  */
106 struct switchframe
107 {
108         register_t sf_r4;
109         register_t sf_r5;
110         register_t sf_r6;
111         register_t sf_r7;
112         register_t sf_r8;
113         register_t sf_r9;
114         register_t sf_r10;
115         register_t sf_r11;
116         register_t sf_r12;
117         register_t sf_sp;
118         register_t sf_lr;
119         register_t sf_pc;
120 };
121 
122 
123 /*
124  * Stack frame. Used during stack traces (db_trace.c)
125  */
126 struct frame {
127 	u_int	fr_fp;
128 	u_int	fr_sp;
129 	u_int	fr_lr;
130 	u_int	fr_pc;
131 };
132 
133 #endif /* !_LOCORE */
134 
135 #endif /* _MACHINE_FRAME_H_ */
136