1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
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  *	from: @(#)reg.h	5.5 (Berkeley) 1/18/91
35  *	from: FreeBSD: src/sys/i386/include/reg.h,v 1.23 2000/09/21
36  * $FreeBSD: stable/12/sys/sparc64/include/reg.h 326023 2017-11-20 19:43:44Z pfg $
37  */
38 
39 #ifndef	_MACHINE_REG_H_
40 #define	_MACHINE_REG_H_
41 
42 /*
43  * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
44  *
45  * NOTE: DO NOT CHANGE THESE STRUCTURES.  The offsets of the fields are
46  * hardcoded in gdb.  Changing them and recompiling doesn't help, the
47  * constants in nm-fbsd.h must also be updated.
48  */
49 
50 struct reg32 {
51 	uint32_t r_global[8];
52 	uint32_t r_out[8];
53 	uint32_t r_npc;
54 	uint32_t r_pc;
55 	uint32_t r_psr;
56 	uint32_t r_wim;
57 	uint32_t r_pad[4];
58 };
59 
60 struct reg {
61 	uint64_t r_global[8];
62 	uint64_t r_out[8];
63 	uint64_t r_fprs;
64 	uint64_t r_fsr;
65 	uint64_t r_gsr;
66 	uint64_t r_level;
67 	uint64_t r_pil;
68 	uint64_t r_sfar;
69 	uint64_t r_sfsr;
70 	uint64_t r_tar;
71 	uint64_t r_tnpc;
72 	uint64_t r_tpc;
73 	uint64_t r_tstate;
74 	uint64_t r_type;
75 	uint64_t r_y;
76 	uint64_t r_wstate;
77 	uint64_t r_pad[2];
78 };
79 
80 /*
81  * Register set accessible via /proc/$pid/fpregs.
82  */
83 
84 struct fpreg32 {
85 	uint32_t fr_regs[32];
86 	uint32_t fr_fsr;
87 };
88 
89 struct fpreg {
90 	uint32_t fr_regs[64];	/* our view is 64 32-bit registers */
91 	int64_t	fr_fsr;		/* %fsr */
92 	int32_t	fr_gsr;		/* %gsr */
93 	int32_t fr_pad[1];
94 };
95 
96 /*
97  * Register set accessible via /proc/$pid/dbregs.
98  */
99 struct dbreg {
100 	int dummy;
101 };
102 
103 /*
104  * NB: sparcv8 binaries are not supported even though this header
105  * defines the relevant structures.
106  */
107 #define	__HAVE_REG32
108 
109 #ifdef _KERNEL
110 /*
111  * XXX these interfaces are MI, so they should be declared in a MI place.
112  */
113 int	fill_regs(struct thread *, struct reg *);
114 int	set_regs(struct thread *, struct reg *);
115 int	fill_fpregs(struct thread *, struct fpreg *);
116 int	set_fpregs(struct thread *, struct fpreg *);
117 int	fill_dbregs(struct thread *, struct dbreg *);
118 int	set_dbregs(struct thread *, struct dbreg *);
119 #endif
120 
121 #endif /* !_MACHINE_REG_H_ */
122