xref: /freebsd/sys/i386/include/gdb_machdep.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2004 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 
29 #ifndef _MACHINE_GDB_MACHDEP_H_
30 #define	_MACHINE_GDB_MACHDEP_H_
31 
32 #define	GDB_BUFSZ	400
33 #define	GDB_NREGS	16
34 #define	GDB_REG_PC	8
35 
36 static __inline size_t
37 gdb_cpu_regsz(int regnum __unused)
38 {
39 	return (sizeof(int));
40 }
41 
42 static __inline int
43 gdb_cpu_query(void)
44 {
45 	return (0);
46 }
47 
48 static __inline void *
49 gdb_begin_write(void)
50 {
51 
52 	return (NULL);
53 }
54 
55 static __inline void
56 gdb_end_write(void *arg __unused)
57 {
58 
59 }
60 
61 void *gdb_cpu_getreg(int, size_t *);
62 void gdb_cpu_setreg(int, void *);
63 int gdb_cpu_signal(int, int);
64 void gdb_cpu_stop_reason(int, int);
65 
66 #endif /* !_MACHINE_GDB_MACHDEP_H_ */
67