1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 Olivier Houchard
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 #define GDB_BUFSZ 400
35 #define GDB_NREGS 26
36 #define GDB_REG_SP 13
37 #define GDB_REG_LR 14
38 #define GDB_REG_PC 15
39
40 static __inline size_t
41 gdb_cpu_regsz(int regnum)
42 {
43 /*
44 * GDB expects the FPA registers f0-f7, each 96 bits wide, to be placed
45 * in between the PC and CSPR in response to a "g" packet.
46 */
47 return (regnum >= 16 && regnum <= 23 ? 12 : sizeof(int));
48 }
49
50 static __inline int
51 gdb_cpu_query(void)
52 {
53 return (0);
54 }
55
56 static __inline void *
57 gdb_begin_write(void)
58 {
59
60 return (NULL);
61 }
62
63 static __inline void
64 gdb_end_write(void *arg __unused)
65 {
66
67 }
68
69 void *gdb_cpu_getreg(int, size_t *);
70 void gdb_cpu_setreg(int, void *);
71 int gdb_cpu_signal(int, int);
72
73 #endif /* !_MACHINE_GDB_MACHDEP_H_ */
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