xref: /f-stack/freebsd/arm/include/debug_monitor.h (revision 22ce4aff)
1*a9643ea8Slogwang /*-
2*a9643ea8Slogwang  * Copyright (c) 2014 The FreeBSD Foundation
3*a9643ea8Slogwang  * All rights reserved.
4*a9643ea8Slogwang  *
5*a9643ea8Slogwang  * This software was developed by Semihalf under
6*a9643ea8Slogwang  * the sponsorship of the FreeBSD Foundation.
7*a9643ea8Slogwang  *
8*a9643ea8Slogwang  * Redistribution and use in source and binary forms, with or without
9*a9643ea8Slogwang  * modification, are permitted provided that the following conditions
10*a9643ea8Slogwang  * are met:
11*a9643ea8Slogwang  * 1. Redistributions of source code must retain the above copyright
12*a9643ea8Slogwang  *    notice, this list of conditions and the following disclaimer.
13*a9643ea8Slogwang  * 2. Redistributions in binary form must reproduce the above copyright
14*a9643ea8Slogwang  *    notice, this list of conditions and the following disclaimer in the
15*a9643ea8Slogwang  *    documentation and/or other materials provided with the distribution.
16*a9643ea8Slogwang  *
17*a9643ea8Slogwang  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18*a9643ea8Slogwang  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19*a9643ea8Slogwang  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20*a9643ea8Slogwang  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21*a9643ea8Slogwang  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22*a9643ea8Slogwang  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23*a9643ea8Slogwang  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24*a9643ea8Slogwang  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25*a9643ea8Slogwang  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26*a9643ea8Slogwang  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27*a9643ea8Slogwang  * SUCH DAMAGE.
28*a9643ea8Slogwang  *
29*a9643ea8Slogwang  * $FreeBSD$
30*a9643ea8Slogwang  */
31*a9643ea8Slogwang 
32*a9643ea8Slogwang #ifndef _MACHINE_DEBUG_MONITOR_H_
33*a9643ea8Slogwang #define	_MACHINE_DEBUG_MONITOR_H_
34*a9643ea8Slogwang 
35*a9643ea8Slogwang #ifdef DDB
36*a9643ea8Slogwang 
37*a9643ea8Slogwang #include <machine/db_machdep.h>
38*a9643ea8Slogwang 
39*a9643ea8Slogwang enum dbg_access_t {
40*a9643ea8Slogwang 	HW_BREAKPOINT_X		= 0,
41*a9643ea8Slogwang 	HW_WATCHPOINT_R		= 1,
42*a9643ea8Slogwang 	HW_WATCHPOINT_W		= 2,
43*a9643ea8Slogwang 	HW_WATCHPOINT_RW	= HW_WATCHPOINT_R | HW_WATCHPOINT_W,
44*a9643ea8Slogwang };
45*a9643ea8Slogwang 
46*a9643ea8Slogwang void dbg_monitor_init(void);
47*a9643ea8Slogwang void dbg_monitor_init_secondary(void);
48*a9643ea8Slogwang void dbg_show_watchpoint(void);
49*a9643ea8Slogwang int dbg_setup_watchpoint(db_expr_t, db_expr_t, enum dbg_access_t);
50*a9643ea8Slogwang int dbg_remove_watchpoint(db_expr_t, db_expr_t);
51*a9643ea8Slogwang void dbg_resume_dbreg(void);
52*a9643ea8Slogwang 
53*a9643ea8Slogwang #else /* DDB */
54*a9643ea8Slogwang static __inline void
dbg_monitor_init(void)55*a9643ea8Slogwang dbg_monitor_init(void)
56*a9643ea8Slogwang {
57*a9643ea8Slogwang }
58*a9643ea8Slogwang #endif
59*a9643ea8Slogwang 
60*a9643ea8Slogwang #endif /* _MACHINE_DEBUG_MONITOR_H_ */
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