ARM: kprobes: Migrate ARM space_cccc_01xx to decoding tables
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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@ -1415,23 +1415,24 @@ static const union decode_item arm_cccc_0111_____xxx1_table[] = {
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DECODE_END
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DECODE_END
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};
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};
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static enum kprobe_insn __kprobes
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static const union decode_item arm_cccc_01xx_table[] = {
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space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi)
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/* Load/store word and unsigned byte */
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{
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/* LDR : cccc 01xx x0x1 xxxx xxxx xxxx xxxx xxxx */
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/* LDRB : cccc 01xx x1x1 xxxx xxxx xxxx xxxx xxxx */
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/* LDRBT : cccc 01x0 x111 xxxx xxxx xxxx xxxx xxxx */
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/* LDRT : cccc 01x0 x011 xxxx xxxx xxxx xxxx xxxx */
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/* STR : cccc 01xx x0x0 xxxx xxxx xxxx xxxx xxxx */
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/* STRB : cccc 01xx x1x0 xxxx xxxx xxxx xxxx xxxx */
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/* STRBT : cccc 01x0 x110 xxxx xxxx xxxx xxxx xxxx */
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/* STRT : cccc 01x0 x010 xxxx xxxx xxxx xxxx xxxx */
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if ((insn & 0x00500000) == 0x00500000 && is_r15(insn, 12))
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/* LDRB/STRB pc,[...] cccc 01xx x0xx xxxx xxxx xxxx xxxx xxxx */
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return INSN_REJECTED; /* LDRB into PC */
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DECODE_REJECT (0x0c40f000, 0x0440f000),
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return prep_emulate_ldr_str(insn, asi);
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/* LDR cccc 01xx x0x1 xxxx xxxx xxxx xxxx xxxx */
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}
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/* LDRB cccc 01xx x1x1 xxxx xxxx xxxx xxxx xxxx */
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/* LDRBT cccc 01x0 x111 xxxx xxxx xxxx xxxx xxxx */
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/* LDRT cccc 01x0 x011 xxxx xxxx xxxx xxxx xxxx */
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/* STR cccc 01xx x0x0 xxxx xxxx xxxx xxxx xxxx */
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/* STRB cccc 01xx x1x0 xxxx xxxx xxxx xxxx xxxx */
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/* STRBT cccc 01x0 x110 xxxx xxxx xxxx xxxx xxxx */
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/* STRT cccc 01x0 x010 xxxx xxxx xxxx xxxx xxxx */
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DECODE_CUSTOM (0x0c000000, 0x04000000, prep_emulate_ldr_str),
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DECODE_END
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};
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static enum kprobe_insn __kprobes
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static enum kprobe_insn __kprobes
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space_cccc_100x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
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space_cccc_100x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
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@ -1526,7 +1527,7 @@ arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi)
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else if ((insn & 0x0c000000) == 0x04000000)
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else if ((insn & 0x0c000000) == 0x04000000)
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return space_cccc_01xx(insn, asi);
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return kprobe_decode_insn(insn, asi, arm_cccc_01xx_table, false);
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else if ((insn & 0x0e000000) == 0x08000000)
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else if ((insn & 0x0e000000) == 0x08000000)
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