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ARM: kprobes: Add emulation of RBIT instruction

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The v6T2 RBIT instruction was accidentally being emulated correctly,
this patch adds correct decoding for the instruction.

Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
This commit is contained in:
Jon Medhurst 2011-04-12 07:45:22 +01:00 committed by Nicolas Pitre
parent 81ff5720b9
commit 0e384ed164
1 changed files with 2 additions and 1 deletions
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3
arch/arm/kernel/kprobes-decode.c
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@ -1320,9 +1320,10 @@ space_cccc_0110__1(kprobe_opcode_t insn, struct arch_specific_insn *asi)
/* REV : cccc 0110 1011 xxxx xxxx xxxx 0011 xxxx */
/* REV16 : cccc 0110 1011 xxxx xxxx xxxx 1011 xxxx */
/* RBIT : cccc 0110 1111 xxxx xxxx xxxx 0011 xxxx */
/* REVSH : cccc 0110 1111 xxxx xxxx xxxx 1011 xxxx */
if ((insn & 0x0ff00070) == 0x06b00030 ||
(insn & 0x0ff000f0) == 0x06f000b0)
(insn & 0x0ff00070) == 0x06f00030)
return prep_emulate_rd12rm0(insn, asi);
/* SADD16 : cccc 0110 0001 xxxx xxxx xxxx 0001 xxxx :GE */