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83803d97da
This patch introdces 'checker' to decoding phase, and calls checkers when instruction decoding. This allows further decoding for specific instructions. This patch introduces a stub call of checkers in kprobe arch_prepare_kprobe() as an example and for further expansion. Signed-off-by: Wang Nan <wangnan0@huawei.com> Reviewed-by: Jon Medhurst <tixy@linaro.org> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jon Medhurst <tixy@linaro.org>
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
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* arch/arm/probes/decode-arm.h
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*
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* Copyright 2013 Linaro Ltd.
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* Written by: David A. Long
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#ifndef _ARM_KERNEL_PROBES_ARM_H
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#define _ARM_KERNEL_PROBES_ARM_H
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#include "decode.h"
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enum probes_arm_action {
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PROBES_PRELOAD_IMM,
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PROBES_PRELOAD_REG,
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PROBES_BRANCH_IMM,
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PROBES_BRANCH_REG,
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PROBES_MRS,
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PROBES_CLZ,
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PROBES_SATURATING_ARITHMETIC,
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PROBES_MUL1,
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PROBES_MUL2,
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PROBES_SWP,
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PROBES_LDRSTRD,
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PROBES_LOAD,
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PROBES_STORE,
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PROBES_LOAD_EXTRA,
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PROBES_STORE_EXTRA,
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PROBES_MOV_IP_SP,
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PROBES_DATA_PROCESSING_REG,
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PROBES_DATA_PROCESSING_IMM,
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PROBES_MOV_HALFWORD,
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PROBES_SEV,
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PROBES_WFE,
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PROBES_SATURATE,
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PROBES_REV,
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PROBES_MMI,
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PROBES_PACK,
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PROBES_EXTEND,
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PROBES_EXTEND_ADD,
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PROBES_MUL_ADD_LONG,
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PROBES_MUL_ADD,
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PROBES_BITFIELD,
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PROBES_BRANCH,
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PROBES_LDMSTM,
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NUM_PROBES_ARM_ACTIONS
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};
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void __kprobes simulate_bbl(probes_opcode_t opcode,
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struct arch_probes_insn *asi, struct pt_regs *regs);
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void __kprobes simulate_blx1(probes_opcode_t opcode,
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struct arch_probes_insn *asi, struct pt_regs *regs);
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void __kprobes simulate_blx2bx(probes_opcode_t opcode,
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struct arch_probes_insn *asi, struct pt_regs *regs);
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void __kprobes simulate_mrs(probes_opcode_t opcode,
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struct arch_probes_insn *asi, struct pt_regs *regs);
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void __kprobes simulate_mov_ipsp(probes_opcode_t opcode,
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struct arch_probes_insn *asi, struct pt_regs *regs);
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extern const union decode_item probes_decode_arm_table[];
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enum probes_insn arm_probes_decode_insn(probes_opcode_t,
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struct arch_probes_insn *, bool emulate,
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const union decode_action *actions,
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const struct decode_checker *checkers[]);
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#endif
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