3e6cd394bb
Make the instruction interpreter call back to semantic action functions through a function pointer array provided by the invoker. The interpreter decodes the instructions into groups and uses the group number to index into the supplied array. kprobes and uprobes code will each supply their own array of functions. Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Jon Medhurst <tixy@linaro.org>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* arch/arm/kernel/kprobes.h
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*
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* Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>.
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*
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* Some contents moved here from arch/arm/include/asm/kprobes.h which is
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* Copyright (C) 2006, 2007 Motorola 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_KPROBES_H
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#define _ARM_KERNEL_KPROBES_H
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/*
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* These undefined instructions must be unique and
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* reserved solely for kprobes' use.
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*/
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#define KPROBE_ARM_BREAKPOINT_INSTRUCTION 0x07f001f8
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#define KPROBE_THUMB16_BREAKPOINT_INSTRUCTION 0xde18
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#define KPROBE_THUMB32_BREAKPOINT_INSTRUCTION 0xf7f0a018
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struct decode_header;
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union decode_action;
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enum kprobe_insn {
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INSN_REJECTED,
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INSN_GOOD,
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INSN_GOOD_NO_SLOT
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};
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typedef enum kprobe_insn (kprobe_decode_insn_t)(kprobe_opcode_t,
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struct arch_specific_insn *,
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const union decode_action *);
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#ifdef CONFIG_THUMB2_KERNEL
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enum kprobe_insn thumb16_kprobe_decode_insn(kprobe_opcode_t,
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struct arch_specific_insn *,
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const union decode_action *);
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enum kprobe_insn thumb32_kprobe_decode_insn(kprobe_opcode_t,
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struct arch_specific_insn *,
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const union decode_action *);
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#else /* !CONFIG_THUMB2_KERNEL */
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enum kprobe_insn arm_kprobe_decode_insn(kprobe_opcode_t,
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struct arch_specific_insn *,
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const union decode_action *);
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#endif
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void __init arm_kprobe_decode_init(void);
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#include "probes.h"
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#endif /* _ARM_KERNEL_KPROBES_H */
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