1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 Marcel Moolenaar
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#ifndef _MACHINE_GDB_MACHDEP_H_
32#define	_MACHINE_GDB_MACHDEP_H_
33
34#ifdef BOOKE
35#define	PPC_GDB_NREGS0	1
36#define	PPC_GDB_NREGS4	(70 + 1)
37#define	PPC_GDB_NREGS8	(1 + 32)
38#define	PPC_GDB_NREGS16	0
39#else
40#define	PPC_GDB_NREGS0	0
41#define	PPC_GDB_NREGS4	(32 + 7 + 2)
42#define	PPC_GDB_NREGS8	32
43#define	PPC_GDB_NREGS16	32
44#endif
45
46#define GDB_NREGS	(PPC_GDB_NREGS0 + PPC_GDB_NREGS4 + \
47			 PPC_GDB_NREGS8 + PPC_GDB_NREGS16)
48#define	GDB_REG_PC	64
49
50#define	GDB_BUFSZ	(PPC_GDB_NREGS4 * 8 +	\
51			 PPC_GDB_NREGS8 * 16 +	\
52			 PPC_GDB_NREGS16 * 32)
53
54static __inline size_t
55gdb_cpu_regsz(int regnum)
56{
57
58#ifdef BOOKE
59	if (regnum == 70)
60		return (0);
61	if (regnum == 71 || regnum >= 73)
62		return (8);
63#else
64	if (regnum >= 32 && regnum <= 63)
65		return (8);
66	if (regnum >= 71 && regnum <= 102)
67		return (16);
68#endif
69	return (4);
70}
71
72static __inline int
73gdb_cpu_query(void)
74{
75
76	return (0);
77}
78
79static __inline void *
80gdb_begin_write(void)
81{
82
83	return (NULL);
84}
85
86static __inline void
87gdb_end_write(void *arg __unused)
88{
89
90}
91
92void *gdb_cpu_getreg(int, size_t *);
93void gdb_cpu_setreg(int, void *);
94int gdb_cpu_signal(int, int);
95
96#endif /* !_MACHINE_GDB_MACHDEP_H_ */
97