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ARM: kprobes: Fix emulation of Data-processing (immediate) instructions

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Emulation of instructions like "ADD rd, rn, #<const>" would result in a
corrupted value for rd.

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 2011-04-06 11:17:12 +01:00 committed by Nicolas Pitre
parent ad111ce466
commit 896a74e19d
1 changed files with 1 additions and 1 deletions
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2
arch/arm/kernel/kprobes-decode.c
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@ -1207,7 +1207,7 @@ space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
* *S (bit 20) updates condition codes
* ADC/SBC/RSC reads the C flag
*/
insn &= 0xffff0fff; /* Rd = r0 */
insn &= 0xfff00fff; /* Rn = r0 and Rd = r0 */
asi->insn[0] = insn;
if ((insn & 0x0f900000) == 0x03100000) {