1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * arch/arm/kernel/kprobes.h
4 *
5 * Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>.
6 *
7 * Some contents moved here from arch/arm/include/asm/kprobes.h which is
8 * Copyright (C) 2006, 2007 Motorola Inc.
9 */
10
11#ifndef _ARM_KERNEL_KPROBES_H
12#define _ARM_KERNEL_KPROBES_H
13
14#include <asm/kprobes.h>
15#include "../decode.h"
16
17/*
18 * These undefined instructions must be unique and
19 * reserved solely for kprobes' use.
20 */
21#define KPROBE_ARM_BREAKPOINT_INSTRUCTION	0x07f001f8
22#define KPROBE_THUMB16_BREAKPOINT_INSTRUCTION	0xde18
23#define KPROBE_THUMB32_BREAKPOINT_INSTRUCTION	0xf7f0a018
24
25extern void kprobes_remove_breakpoint(void *addr, unsigned int insn);
26
27enum probes_insn __kprobes
28kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_probes_insn *asi,
29		const struct decode_header *h);
30
31typedef enum probes_insn (kprobe_decode_insn_t)(probes_opcode_t,
32						struct arch_probes_insn *,
33						bool,
34						const union decode_action *,
35						const struct decode_checker *[]);
36
37#ifdef CONFIG_THUMB2_KERNEL
38
39extern const union decode_action kprobes_t32_actions[];
40extern const union decode_action kprobes_t16_actions[];
41extern const struct decode_checker *kprobes_t32_checkers[];
42extern const struct decode_checker *kprobes_t16_checkers[];
43#else /* !CONFIG_THUMB2_KERNEL */
44
45extern const union decode_action kprobes_arm_actions[];
46extern const struct decode_checker *kprobes_arm_checkers[];
47
48#endif
49
50#endif /* _ARM_KERNEL_KPROBES_H */
51