1/*
2 * arch/arm/probes/kprobes/checkers.h
3 *
4 * Copyright (C) 2014 Huawei Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * General Public License for more details.
14 */
15#ifndef _ARM_KERNEL_PROBES_CHECKERS_H
16#define _ARM_KERNEL_PROBES_CHECKERS_H
17
18#include <linux/kernel.h>
19#include <linux/types.h>
20#include "../decode.h"
21
22extern probes_check_t checker_stack_use_none;
23extern probes_check_t checker_stack_use_unknown;
24#ifdef CONFIG_THUMB2_KERNEL
25extern probes_check_t checker_stack_use_imm_0xx;
26#else
27extern probes_check_t checker_stack_use_imm_x0x;
28#endif
29extern probes_check_t checker_stack_use_imm_xxx;
30extern probes_check_t checker_stack_use_stmdx;
31
32enum {
33	STACK_USE_NONE,
34	STACK_USE_UNKNOWN,
35#ifdef CONFIG_THUMB2_KERNEL
36	STACK_USE_FIXED_0XX,
37	STACK_USE_T32STRD,
38#else
39	STACK_USE_FIXED_X0X,
40#endif
41	STACK_USE_FIXED_XXX,
42	STACK_USE_STMDX,
43	NUM_STACK_USE_TYPES
44};
45
46extern const union decode_action stack_check_actions[];
47
48#ifndef CONFIG_THUMB2_KERNEL
49extern const struct decode_checker arm_stack_checker[];
50extern const struct decode_checker arm_regs_checker[];
51#else
52#endif
53extern const struct decode_checker t32_stack_checker[];
54extern const struct decode_checker t16_stack_checker[];
55#endif
56