1/*-
2 * Copyright (c) 2014 The FreeBSD Foundation
3 *
4 * This software was developed by Semihalf under
5 * the sponsorship of the FreeBSD Foundation.
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 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _MACHINE_DEBUG_MONITOR_H_
30#define	_MACHINE_DEBUG_MONITOR_H_
31
32#ifdef DDB
33
34#include <machine/db_machdep.h>
35
36enum dbg_access_t {
37	HW_BREAKPOINT_X		= 0,
38	HW_WATCHPOINT_R		= 1,
39	HW_WATCHPOINT_W		= 2,
40	HW_WATCHPOINT_RW	= HW_WATCHPOINT_R | HW_WATCHPOINT_W,
41};
42
43void dbg_monitor_init(void);
44void dbg_monitor_init_secondary(void);
45void dbg_show_watchpoint(void);
46int dbg_setup_watchpoint(db_expr_t, db_expr_t, enum dbg_access_t);
47int dbg_remove_watchpoint(db_expr_t, db_expr_t);
48void dbg_resume_dbreg(void);
49
50#else /* DDB */
51static __inline void
52dbg_monitor_init(void)
53{
54}
55#endif
56
57#endif /* _MACHINE_DEBUG_MONITOR_H_ */
58