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: releng/11.0/sys/arm/include/debug_monitor.h 300969 2016-05-29 17:35:38Z zbb $
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
39 enum dbg_access_t {
40 HW_BREAKPOINT_X = 0,
41 HW_WATCHPOINT_R = 1,
42 HW_WATCHPOINT_W = 2,
43 HW_WATCHPOINT_RW = HW_WATCHPOINT_R | HW_WATCHPOINT_W,
44 };
45
46 #if __ARM_ARCH >= 6
47 void dbg_monitor_init(void);
48 void dbg_monitor_init_secondary(void);
49 void dbg_show_watchpoint(void);
50 int dbg_setup_watchpoint(db_expr_t, db_expr_t, enum dbg_access_t);
51 int dbg_remove_watchpoint(db_expr_t, db_expr_t);
52 void dbg_resume_dbreg(void);
53 #else /* __ARM_ARCH >= 6 */
54 static __inline void
55 dbg_show_watchpoint(void)
56 {
57 }
58 static __inline int
59 dbg_setup_watchpoint(db_expr_t addr __unused, db_expr_t size __unused,
60 enum dbg_access_t access __unused)
61 {
62 return (ENXIO);
63 }
64 static __inline int
65 dbg_remove_watchpoint(db_expr_t addr __unused, db_expr_t size __unused)
66 {
67 return (ENXIO);
68 }
69 static __inline void
70 dbg_monitor_init(void)
71 {
72 }
73 static __inline void
74 dbg_monitor_init_secondary(void)
75 {
76 }
77 static __inline void
78 dbg_resume_dbreg(void)
79 {
80 }
81 #endif /* __ARM_ARCH < 6 */
82
83 #else /* DDB */
84 static __inline void
85 dbg_monitor_init(void)
86 {
87 }
88 #endif
89
90 #endif /* _MACHINE_DEBUG_MONITOR_H_ */
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