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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/csky/kernel/probes/decode-insn.c
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// SPDX-License-Identifier: GPL-2.0+

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#include <linux/kernel.h>

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#include <linux/kprobes.h>

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#include <linux/module.h>

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#include <linux/kallsyms.h>

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#include <asm/sections.h>

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#include "decode-insn.h"

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#include "simulate-insn.h"

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/* Return:

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 *   INSN_REJECTED     If instruction is one not allowed to kprobe,

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 *   INSN_GOOD_NO_SLOT If instruction is supported but doesn't use its slot.

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 */

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enum probe_insn __kprobes

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csky_probe_decode_insn(probe_opcode_t *addr, struct arch_probe_insn *api)

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{

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	probe_opcode_t insn = le32_to_cpu(*addr);

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	CSKY_INSN_SET_SIMULATE(br16,		insn);

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	CSKY_INSN_SET_SIMULATE(bt16,		insn);

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	CSKY_INSN_SET_SIMULATE(bf16,		insn);

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	CSKY_INSN_SET_SIMULATE(jmp16,		insn);

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	CSKY_INSN_SET_SIMULATE(jsr16,		insn);

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	CSKY_INSN_SET_SIMULATE(lrw16,		insn);

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	CSKY_INSN_SET_SIMULATE(pop16,		insn);

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	CSKY_INSN_SET_SIMULATE(br32,		insn);

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	CSKY_INSN_SET_SIMULATE(bt32,		insn);

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	CSKY_INSN_SET_SIMULATE(bf32,		insn);

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	CSKY_INSN_SET_SIMULATE(jmp32,		insn);

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	CSKY_INSN_SET_SIMULATE(jsr32,		insn);

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	CSKY_INSN_SET_SIMULATE(lrw32,		insn);

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	CSKY_INSN_SET_SIMULATE(pop32,		insn);

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	CSKY_INSN_SET_SIMULATE(bez32,		insn);

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	CSKY_INSN_SET_SIMULATE(bnez32,		insn);

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	CSKY_INSN_SET_SIMULATE(bnezad32,	insn);

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	CSKY_INSN_SET_SIMULATE(bhsz32,		insn);

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	CSKY_INSN_SET_SIMULATE(bhz32,		insn);

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	CSKY_INSN_SET_SIMULATE(blsz32,		insn);

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	CSKY_INSN_SET_SIMULATE(blz32,		insn);

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	CSKY_INSN_SET_SIMULATE(bsr32,		insn);

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	CSKY_INSN_SET_SIMULATE(jmpi32,		insn);

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	CSKY_INSN_SET_SIMULATE(jsri32,		insn);

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	return INSN_GOOD;

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}

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