xref: /netbsd/sys/arch/sh3/include/reg.h (revision 6550d01e)
1 /*	$NetBSD: reg.h,v 1.7 2008/10/26 19:53:03 uwe Exp $	*/
2 
3 /*-
4  * Copyright (c) 1990 The Regents of the University of California.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * William Jolitz.
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. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  *	@(#)reg.h	5.5 (Berkeley) 1/18/91
35  */
36 
37 #ifndef _SH3_REG_H_
38 #define	_SH3_REG_H_
39 
40 /*
41  * Location of the users' stored
42  * registers within appropriate frame of 'trap' and 'syscall', relative to
43  * base of stack frame.
44  *
45  * XXX
46  * The #defines aren't used in the kernel, but some user-level code still
47  * expects them.
48  */
49 
50 /* When referenced during a trap/exception, registers are at these offsets */
51 
52 #define	tSPC	(0)
53 #define	tSSR	(1)
54 #define	tPR	(2)
55 #define	tR14	(3)
56 #define	tR13	(4)
57 #define	tR12	(5)
58 #define	tR11	(6)
59 #define	tR10	(7)
60 #define	tR9	(8)
61 
62 #define	tR8	(11)
63 #define	tR7	(12)
64 #define	tR6	(13)
65 #define	tR5	(14)
66 #define	tR4	(15)
67 #define	tR3	(16)
68 #define	tR2	(17)
69 #define	tR1	(18)
70 #define	tR0	(19)
71 
72 /*
73  * Registers accessible to ptrace(2) syscall for debugger
74  * The machine-dependent code for PT_{SET,GET}REGS needs to
75  * use whichever order, defined above, is correct, so that it
76  * is all invisible to the user.
77  */
78 struct reg {
79 	int r_spc;
80 	int r_ssr;
81 	int r_pr;
82 	int r_mach;
83 	int r_macl;
84 	int r_r15;
85 	int r_r14;
86 	int r_r13;
87 	int r_r12;
88 	int r_r11;
89 	int r_r10;
90 	int r_r9;
91 	int r_r8;
92 	int r_r7;
93 	int r_r6;
94 	int r_r5;
95 	int r_r4;
96 	int r_r3;
97 	int r_r2;
98 	int r_r1;
99 	int r_r0;
100 	int r_gbr;
101 };
102 
103 
104 /*
105  * Old struct reg that is missing r_gbr.  Compat ptrace(2) requests
106  * are renamed to PT___GETREGS40 and PT___SETREGS40.
107  */
108 struct __reg40 {
109 	int r_spc;
110 	int r_ssr;
111 	int r_pr;
112 	int r_mach;
113 	int r_macl;
114 	int r_r15;
115 	int r_r14;
116 	int r_r13;
117 	int r_r12;
118 	int r_r11;
119 	int r_r10;
120 	int r_r9;
121 	int r_r8;
122 	int r_r7;
123 	int r_r6;
124 	int r_r5;
125 	int r_r4;
126 	int r_r3;
127 	int r_r2;
128 	int r_r1;
129 	int r_r0;
130 };
131 
132 #endif /* !_SH3_REG_H_ */
133