1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 * $FreeBSD$
29 */
30
31#ifndef _MACHINE_GDB_MACHDEP_H_
32#define	_MACHINE_GDB_MACHDEP_H_
33
34#define	GDB_BUFSZ	(GDB_NREGS * 16)
35#define	GDB_NREGS	56
36#define	GDB_REG_RAX	0
37#define	GDB_REG_RBX	1
38#define	GDB_REG_RCX	2
39#define	GDB_REG_RDX	3
40#define	GDB_REG_RSI	4
41#define	GDB_REG_RDI	5
42#define	GDB_REG_RBP	6
43#define	GDB_REG_RSP	7
44#define	GDB_REG_R8	8
45#define	GDB_REG_R9	9
46#define	GDB_REG_R10	10
47#define	GDB_REG_R11	11
48#define	GDB_REG_R12	12
49#define	GDB_REG_R13	13
50#define	GDB_REG_R14	14
51#define	GDB_REG_R15	15
52#define	GDB_REG_PC	16
53#define	GDB_REG_RFLAGS	17
54#define	GDB_REG_CS	18
55#define	GDB_REG_SS	19
56_Static_assert(GDB_BUFSZ >= (GDB_NREGS * 16), "buffer fits 'g' regs");
57
58static __inline size_t
59gdb_cpu_regsz(int regnum)
60{
61	return ((regnum > 16 && regnum < 24) ? 4 : 8);
62}
63
64static __inline int
65gdb_cpu_query(void)
66{
67	return (0);
68}
69
70void *gdb_begin_write(void);
71void *gdb_cpu_getreg(int, size_t *);
72void gdb_cpu_setreg(int, void *);
73int gdb_cpu_signal(int, int);
74void gdb_end_write(void *);
75
76#endif /* !_MACHINE_GDB_MACHDEP_H_ */
77