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1 /* MN10300 Kernel Probes support
2  *
3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4  * Written by Mark Salter (msalter@redhat.com)
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public Licence as published by
8  * the Free Software Foundation; either version 2 of the Licence, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public Licence for more details.
15  *
16  * You should have received a copy of the GNU General Public Licence
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19  *
20  */
21 #ifndef _ASM_KPROBES_H
22 #define _ASM_KPROBES_H
23 
24 #include <linux/types.h>
25 #include <linux/ptrace.h>
26 
27 struct kprobe;
28 
29 typedef unsigned char kprobe_opcode_t;
30 #define BREAKPOINT_INSTRUCTION	0xff
31 #define MAX_INSN_SIZE 8
32 #define MAX_STACK_SIZE 128
33 
34 /* Architecture specific copy of original instruction */
35 struct arch_specific_insn {
36 	/*  copy of original instruction
37 	 */
38 	kprobe_opcode_t insn[MAX_INSN_SIZE];
39 };
40 
41 extern const int kretprobe_blacklist_size;
42 
43 extern int kprobe_exceptions_notify(struct notifier_block *self,
44 				    unsigned long val, void *data);
45 
46 #define flush_insn_slot(p)  do {} while (0)
47 
48 extern void arch_remove_kprobe(struct kprobe *p);
49 
50 #endif /* _ASM_KPROBES_H */
51