1/*
 2 * arch/arm/kernel/kprobes.h
 3 *
 4 * Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>.
 5 *
 6 * Some contents moved here from arch/arm/include/asm/kprobes.h which is
 7 * Copyright (C) 2006, 2007 Motorola Inc.
 8 *
 9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * General Public License for more details.
17 */
18
19#ifndef _ARM_KERNEL_KPROBES_H
20#define _ARM_KERNEL_KPROBES_H
21
22#include "probes.h"
23
24/*
25 * These undefined instructions must be unique and
26 * reserved solely for kprobes' use.
27 */
28#define KPROBE_ARM_BREAKPOINT_INSTRUCTION	0x07f001f8
29#define KPROBE_THUMB16_BREAKPOINT_INSTRUCTION	0xde18
30#define KPROBE_THUMB32_BREAKPOINT_INSTRUCTION	0xf7f0a018
31
32enum probes_insn __kprobes
33kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_probes_insn *asi,
34		const struct decode_header *h);
35
36typedef enum probes_insn (kprobe_decode_insn_t)(probes_opcode_t,
37						struct arch_probes_insn *,
38						bool,
39						const union decode_action *);
40
41#ifdef CONFIG_THUMB2_KERNEL
42
43extern const union decode_action kprobes_t32_actions[];
44extern const union decode_action kprobes_t16_actions[];
45
46#else /* !CONFIG_THUMB2_KERNEL */
47
48extern const union decode_action kprobes_arm_actions[];
49
50#endif
51
52#endif /* _ARM_KERNEL_KPROBES_H */