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28a1899db3
This patch utilizes the previously introduced checker to check register usage for probed ARM instruction and saves it in a mask. A further patch will use such information to avoid simulation or emulation. Signed-off-by: Wang Nan <wangnan0@huawei.com> Reviewed-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Jon Medhurst <tixy@linaro.org>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
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* arch/arm/probes/kprobes/checkers.h
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*
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* Copyright (C) 2014 Huawei Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef _ARM_KERNEL_PROBES_CHECKERS_H
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#define _ARM_KERNEL_PROBES_CHECKERS_H
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include "../decode.h"
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extern probes_check_t checker_stack_use_none;
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extern probes_check_t checker_stack_use_unknown;
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#ifdef CONFIG_THUMB2_KERNEL
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extern probes_check_t checker_stack_use_imm_0xx;
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#else
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extern probes_check_t checker_stack_use_imm_x0x;
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#endif
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extern probes_check_t checker_stack_use_imm_xxx;
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extern probes_check_t checker_stack_use_stmdx;
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enum {
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STACK_USE_NONE,
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STACK_USE_UNKNOWN,
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#ifdef CONFIG_THUMB2_KERNEL
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STACK_USE_FIXED_0XX,
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STACK_USE_T32STRD,
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#else
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STACK_USE_FIXED_X0X,
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#endif
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STACK_USE_FIXED_XXX,
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STACK_USE_STMDX,
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NUM_STACK_USE_TYPES
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};
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extern const union decode_action stack_check_actions[];
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#ifndef CONFIG_THUMB2_KERNEL
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extern const struct decode_checker arm_stack_checker[];
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extern const struct decode_checker arm_regs_checker[];
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#else
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#endif
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extern const struct decode_checker t32_stack_checker[];
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extern const struct decode_checker t16_stack_checker[];
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#endif
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