1 /*-
2 * Copyright (c) 2004 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #ifndef _MACHINE_KDB_H_
28 #define _MACHINE_KDB_H_
29
30 #include <machine/cpufunc.h>
31
32 static __inline void
kdb_cpu_clear_singlestep(void)33 kdb_cpu_clear_singlestep(void)
34 {
35 }
36
37 static __inline void
kdb_cpu_set_singlestep(void)38 kdb_cpu_set_singlestep(void)
39 {
40 }
41
42 static __inline void
kdb_cpu_sync_icache(unsigned char * addr,size_t size)43 kdb_cpu_sync_icache(unsigned char *addr, size_t size)
44 {
45
46 /*
47 * Other CPUs flush their instruction cache when resuming from
48 * IPI_STOP.
49 */
50 fence_i();
51 }
52
53 static __inline void
kdb_cpu_trap(int type,int code)54 kdb_cpu_trap(int type, int code)
55 {
56 }
57
58 static __inline int
kdb_cpu_set_watchpoint(vm_offset_t addr,vm_size_t size,int access)59 kdb_cpu_set_watchpoint(vm_offset_t addr, vm_size_t size, int access)
60 {
61
62 return (ENXIO);
63 }
64
65 static __inline int
kdb_cpu_clr_watchpoint(vm_offset_t addr,vm_size_t size)66 kdb_cpu_clr_watchpoint(vm_offset_t addr, vm_size_t size)
67 {
68
69 return (0);
70 }
71
72 #endif /* _MACHINE_KDB_H_ */
73