debug_monitor.h revision 305773 
1/*-
2 * Copyright (c) 2014 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Semihalf under
6 * the sponsorship of the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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 AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/11/sys/arm64/include/debug_monitor.h 305773 2016-09-13 16:22:50Z andrew $
30 */
31
32#ifndef _MACHINE_DEBUG_MONITOR_H_
33#define	_MACHINE_DEBUG_MONITOR_H_
34
35#ifdef DDB
36
37#include <machine/db_machdep.h>
38
39enum dbg_el_t {
40	DBG_FROM_EL0 = 0,
41	DBG_FROM_EL1 = 1,
42};
43
44enum dbg_access_t {
45	HW_BREAKPOINT_X		= 0,
46	HW_BREAKPOINT_R		= 1,
47	HW_BREAKPOINT_W		= 2,
48	HW_BREAKPOINT_RW	= HW_BREAKPOINT_R | HW_BREAKPOINT_W,
49};
50
51void dbg_monitor_init(void);
52void dbg_show_watchpoint(void);
53int dbg_setup_watchpoint(db_expr_t addr, db_expr_t size, enum dbg_el_t el,
54    enum dbg_access_t access);
55int dbg_remove_watchpoint(db_expr_t addr, db_expr_t size, enum dbg_el_t el);
56#else
57static __inline void
58dbg_monitor_init(void)
59{
60}
61#endif
62
63#endif /* _MACHINE_DEBUG_MONITOR_H_ */
64