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	4096
33#define	GDB_NREGS	56
34#define	GDB_REG_RAX	0
35#define	GDB_REG_RBX	1
36#define	GDB_REG_RCX	2
37#define	GDB_REG_RDX	3
38#define	GDB_REG_RSI	4
39#define	GDB_REG_RDI	5
40#define	GDB_REG_RBP	6
41#define	GDB_REG_RSP	7
42#define	GDB_REG_R8	8
43#define	GDB_REG_R9	9
44#define	GDB_REG_R10	10
45#define	GDB_REG_R11	11
46#define	GDB_REG_R12	12
47#define	GDB_REG_R13	13
48#define	GDB_REG_R14	14
49#define	GDB_REG_R15	15
50#define	GDB_REG_PC	16
51#define	GDB_REG_RFLAGS	17
52#define	GDB_REG_CS	18
53#define	GDB_REG_SS	19
54_Static_assert(GDB_BUFSZ >= (GDB_NREGS * 16), "buffer fits 'g' regs");
55
56static __inline size_t
57gdb_cpu_regsz(int regnum)
58{
59	return ((regnum > 16 && regnum < 24) ? 4 : 8);
60}
61
62static __inline int
63gdb_cpu_query(void)
64{
65	return (0);
66}
67
68void *gdb_begin_write(void);
69void *gdb_cpu_getreg(int, size_t *);
70void gdb_cpu_setreg(int, void *);
71int gdb_cpu_signal(int, int);
72void gdb_end_write(void *);
73void gdb_cpu_stop_reason(int, int);
74
75#endif /* !_MACHINE_GDB_MACHDEP_H_ */