1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
29 #ifndef _MACHINE_GDB_MACHDEP_H_
30 #define _MACHINE_GDB_MACHDEP_H_
31
32 #define GDB_BUFSZ 400
33 #define GDB_NREGS 26
34 #define GDB_REG_SP 13
35 #define GDB_REG_LR 14
36 #define GDB_REG_PC 15
37
38 static __inline size_t
gdb_cpu_regsz(int regnum)39 gdb_cpu_regsz(int regnum)
40 {
41 /*
42 * GDB expects the FPA registers f0-f7, each 96 bits wide, to be placed
43 * in between the PC and CSPR in response to a "g" packet.
44 */
45 return (regnum >= 16 && regnum <= 23 ? 12 : sizeof(int));
46 }
47
48 static __inline int
gdb_cpu_query(void)49 gdb_cpu_query(void)
50 {
51 return (0);
52 }
53
54 static __inline void *
gdb_begin_write(void)55 gdb_begin_write(void)
56 {
57
58 return (NULL);
59 }
60
61 static __inline void
gdb_end_write(void * arg __unused)62 gdb_end_write(void *arg __unused)
63 {
64
65 }
66
67 static __inline void
gdb_cpu_stop_reason(int type __unused,int code __unused)68 gdb_cpu_stop_reason(int type __unused, int code __unused)
69 {
70
71 }
72
73 void *gdb_cpu_getreg(int, size_t *);
74 void gdb_cpu_setreg(int, void *);
75 int gdb_cpu_signal(int, int);
76
77 #endif /* !_MACHINE_GDB_MACHDEP_H_ */
78