xref: /freebsd/sys/arm64/include/kdb.h (revision cd3a777bca91669fc4711d1eff66c40f3f62a223)
1 /*-
2  * Copyright (c) 2014 Andrew Turner
3  * Copyright (c) 2015 The FreeBSD Foundation
4  * All rights reserved.
5  *
6  * This software was developed by Semihalf under
7  * sponsorship from the FreeBSD Foundation.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #ifndef _MACHINE_KDB_H_
34 #define	_MACHINE_KDB_H_
35 
36 #include <machine/cpufunc.h>
37 
38 #define	KDB_STOPPEDPCB(pc)	&stoppcbs[pc->pc_cpuid]
39 
40 void kdb_cpu_clear_singlestep(void);
41 void kdb_cpu_set_singlestep(void);
42 int kdb_cpu_set_watchpoint(vm_offset_t addr, size_t size, int access);
43 int kdb_cpu_clr_watchpoint(vm_offset_t addr, size_t size);
44 
45 static __inline void
46 kdb_cpu_sync_icache(unsigned char *addr, size_t size)
47 {
48 
49 	cpu_icache_sync_range((vm_offset_t)addr, size);
50 }
51 
52 static __inline void
53 kdb_cpu_trap(int type, int code)
54 {
55 }
56 
57 #endif /* _MACHINE_KDB_H_ */
58