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authorJon Medhurst <tixy@yxit.co.uk>2011-07-03 15:36:35 +0200
committerTixy <tixy@medhuaa1.miniserver.com>2011-07-13 19:32:46 +0200
commit2fcaf7e75804dbb75862a230a5a19d0508153324 (patch)
treec09cd9a20e4eeb7a5f53b232d267d0b2b252c10b /arch/arm/kernel
parentARM: kprobes: Decode 32-bit Thumb data-processing (shifted register) instruct... (diff)
downloadlinux-2fcaf7e75804dbb75862a230a5a19d0508153324.tar.xz
linux-2fcaf7e75804dbb75862a230a5a19d0508153324.zip
ARM: kprobes: Decode 32-bit Thumb data-processing (modified immediate) instructions
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/kprobes-thumb.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/kernel/kprobes-thumb.c b/arch/arm/kernel/kprobes-thumb.c
index eac945ccf618..cf834484fb58 100644
--- a/arch/arm/kernel/kprobes-thumb.c
+++ b/arch/arm/kernel/kprobes-thumb.c
@@ -241,6 +241,58 @@ static const union decode_item t32_table_1110_101x[] = {
DECODE_END
};
+static const union decode_item t32_table_1111_0x0x___0[] = {
+ /* Data-processing (modified immediate) */
+
+ /* TST 1111 0x00 0001 xxxx 0xxx 1111 xxxx xxxx */
+ /* TEQ 1111 0x00 1001 xxxx 0xxx 1111 xxxx xxxx */
+ DECODE_EMULATEX (0xfb708f00, 0xf0100f00, t32_emulate_rd8rn16rm0_rwflags,
+ REGS(NOSPPC, 0, 0, 0, 0)),
+
+ /* CMN 1111 0x01 0001 xxxx 0xxx 1111 xxxx xxxx */
+ DECODE_OR (0xfbf08f00, 0xf1100f00),
+ /* CMP 1111 0x01 1011 xxxx 0xxx 1111 xxxx xxxx */
+ DECODE_EMULATEX (0xfbf08f00, 0xf1b00f00, t32_emulate_rd8rn16rm0_rwflags,
+ REGS(NOPC, 0, 0, 0, 0)),
+
+ /* MOV 1111 0x00 010x 1111 0xxx xxxx xxxx xxxx */
+ /* MVN 1111 0x00 011x 1111 0xxx xxxx xxxx xxxx */
+ DECODE_EMULATEX (0xfbcf8000, 0xf04f0000, t32_emulate_rd8rn16rm0_rwflags,
+ REGS(0, 0, NOSPPC, 0, 0)),
+
+ /* ??? 1111 0x00 101x xxxx 0xxx xxxx xxxx xxxx */
+ DECODE_REJECT (0xfbe08000, 0xf0a00000),
+ /* ??? 1111 0x00 110x xxxx 0xxx xxxx xxxx xxxx */
+ /* ??? 1111 0x00 111x xxxx 0xxx xxxx xxxx xxxx */
+ DECODE_REJECT (0xfbc08000, 0xf0c00000),
+ /* ??? 1111 0x01 001x xxxx 0xxx xxxx xxxx xxxx */
+ DECODE_REJECT (0xfbe08000, 0xf1200000),
+ /* ??? 1111 0x01 100x xxxx 0xxx xxxx xxxx xxxx */
+ DECODE_REJECT (0xfbe08000, 0xf1800000),
+ /* ??? 1111 0x01 111x xxxx 0xxx xxxx xxxx xxxx */
+ DECODE_REJECT (0xfbe08000, 0xf1e00000),
+
+ /* ADD Rd, SP, #imm 1111 0x01 000x 1101 0xxx xxxx xxxx xxxx */
+ /* SUB Rd, SP, #imm 1111 0x01 101x 1101 0xxx xxxx xxxx xxxx */
+ DECODE_EMULATEX (0xfb4f8000, 0xf10d0000, t32_emulate_rd8rn16rm0_rwflags,
+ REGS(SP, 0, NOPC, 0, 0)),
+
+ /* AND 1111 0x00 000x xxxx 0xxx xxxx xxxx xxxx */
+ /* BIC 1111 0x00 001x xxxx 0xxx xxxx xxxx xxxx */
+ /* ORR 1111 0x00 010x xxxx 0xxx xxxx xxxx xxxx */
+ /* ORN 1111 0x00 011x xxxx 0xxx xxxx xxxx xxxx */
+ /* EOR 1111 0x00 100x xxxx 0xxx xxxx xxxx xxxx */
+ /* ADD 1111 0x01 000x xxxx 0xxx xxxx xxxx xxxx */
+ /* ADC 1111 0x01 010x xxxx 0xxx xxxx xxxx xxxx */
+ /* SBC 1111 0x01 011x xxxx 0xxx xxxx xxxx xxxx */
+ /* SUB 1111 0x01 101x xxxx 0xxx xxxx xxxx xxxx */
+ /* RSB 1111 0x01 110x xxxx 0xxx xxxx xxxx xxxx */
+ DECODE_EMULATEX (0xfa008000, 0xf0000000, t32_emulate_rd8rn16rm0_rwflags,
+ REGS(NOSPPC, 0, NOSPPC, 0, 0)),
+
+ DECODE_END
+};
+
static const union decode_item t32_table_1111_0xxx___1[] = {
/* Branches and miscellaneous control */
@@ -277,6 +329,12 @@ const union decode_item kprobe_decode_thumb32_table[] = {
DECODE_TABLE (0xfe000000, 0xea000000, t32_table_1110_101x),
/*
+ * Data-processing (modified immediate)
+ * 1111 0x0x xxxx xxxx 0xxx xxxx xxxx xxxx
+ */
+ DECODE_TABLE (0xfa008000, 0xf0000000, t32_table_1111_0x0x___0),
+
+ /*
* Branches and miscellaneous control
* 1111 0xxx xxxx xxxx 1xxx xxxx xxxx xxxx
*/