diff options
author | Jon Medhurst <tixy@yxit.co.uk> | 2011-06-08 13:09:36 -0400 |
---|---|---|
committer | Tixy <tixy@medhuaa1.miniserver.com> | 2011-07-13 13:32:49 -0400 |
commit | ad2e81a78d016176b9f194414495a4ce166399e1 (patch) | |
tree | f37252b50c502da6e985899bf0c9a7b181520d71 /arch/arm/kernel | |
parent | 2ce5d03307222b3d5b7c5e9849eb4857eb979fa9 (diff) |
ARM: kprobes: Migrate ARM space_cccc_0111__1 to decoding tables
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-arm.c | 82 |
1 files changed, 36 insertions, 46 deletions
diff --git a/arch/arm/kernel/kprobes-arm.c b/arch/arm/kernel/kprobes-arm.c index 62035057846a..58faacc598bf 100644 --- a/arch/arm/kernel/kprobes-arm.c +++ b/arch/arm/kernel/kprobes-arm.c | |||
@@ -1373,57 +1373,47 @@ static const union decode_item arm_cccc_0110_____xxx1_table[] = { | |||
1373 | DECODE_END | 1373 | DECODE_END |
1374 | }; | 1374 | }; |
1375 | 1375 | ||
1376 | static enum kprobe_insn __kprobes | 1376 | static const union decode_item arm_cccc_0111_____xxx1_table[] = { |
1377 | space_cccc_0111__1(kprobe_opcode_t insn, struct arch_specific_insn *asi) | 1377 | /* Media instructions */ |
1378 | { | ||
1379 | /* Undef : cccc 0111 1111 xxxx xxxx xxxx 1111 xxxx */ | ||
1380 | if ((insn & 0x0ff000f0) == 0x03f000f0) | ||
1381 | return INSN_REJECTED; | ||
1382 | 1378 | ||
1383 | /* SMLALD : cccc 0111 0100 xxxx xxxx xxxx 00x1 xxxx */ | 1379 | /* UNDEFINED cccc 0111 1111 xxxx xxxx xxxx 1111 xxxx */ |
1384 | /* SMLSLD : cccc 0111 0100 xxxx xxxx xxxx 01x1 xxxx */ | 1380 | DECODE_REJECT (0x0ff000f0, 0x07f000f0), |
1385 | if ((insn & 0x0ff00090) == 0x07400010) | ||
1386 | return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi); | ||
1387 | |||
1388 | /* SMLAD : cccc 0111 0000 xxxx xxxx xxxx 00x1 xxxx :Q */ | ||
1389 | /* SMUAD : cccc 0111 0000 xxxx 1111 xxxx 00x1 xxxx :Q */ | ||
1390 | /* SMLSD : cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx :Q */ | ||
1391 | /* SMUSD : cccc 0111 0000 xxxx 1111 xxxx 01x1 xxxx : */ | ||
1392 | /* SMMLA : cccc 0111 0101 xxxx xxxx xxxx 00x1 xxxx : */ | ||
1393 | /* SMMUL : cccc 0111 0101 xxxx 1111 xxxx 00x1 xxxx : */ | ||
1394 | /* USADA8 : cccc 0111 1000 xxxx xxxx xxxx 0001 xxxx : */ | ||
1395 | /* USAD8 : cccc 0111 1000 xxxx 1111 xxxx 0001 xxxx : */ | ||
1396 | if ((insn & 0x0ff00090) == 0x07000010 || | ||
1397 | (insn & 0x0ff000d0) == 0x07500010 || | ||
1398 | (insn & 0x0ff000f0) == 0x07800010) { | ||
1399 | |||
1400 | if ((insn & 0x0000f000) == 0x0000f000) | ||
1401 | return prep_emulate_rd16rs8rm0_wflags(insn, asi); | ||
1402 | else | ||
1403 | return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); | ||
1404 | } | ||
1405 | 1381 | ||
1406 | /* SMMLS : cccc 0111 0101 xxxx xxxx xxxx 11x1 xxxx : */ | 1382 | /* SMLALD cccc 0111 0100 xxxx xxxx xxxx 00x1 xxxx */ |
1407 | if ((insn & 0x0ff000d0) == 0x075000d0) | 1383 | /* SMLSLD cccc 0111 0100 xxxx xxxx xxxx 01x1 xxxx */ |
1408 | return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); | 1384 | DECODE_CUSTOM (0x0ff00090, 0x07400010, prep_emulate_rdhi16rdlo12rs8rm0_wflags), |
1409 | 1385 | ||
1410 | /* SBFX : cccc 0111 101x xxxx xxxx xxxx x101 xxxx : */ | 1386 | /* SMUAD cccc 0111 0000 xxxx 1111 xxxx 00x1 xxxx */ |
1411 | /* UBFX : cccc 0111 111x xxxx xxxx xxxx x101 xxxx : */ | 1387 | /* SMUSD cccc 0111 0000 xxxx 1111 xxxx 01x1 xxxx */ |
1412 | if ((insn & 0x0fa00070) == 0x07a00050) | 1388 | DECODE_OR (0x0ff0f090, 0x0700f010), |
1413 | return prep_emulate_rd12rm0(insn, asi); | 1389 | /* SMMUL cccc 0111 0101 xxxx 1111 xxxx 00x1 xxxx */ |
1390 | DECODE_OR (0x0ff0f0d0, 0x0750f010), | ||
1391 | /* USAD8 cccc 0111 1000 xxxx 1111 xxxx 0001 xxxx */ | ||
1392 | DECODE_CUSTOM (0x0ff0f0f0, 0x0780f010, prep_emulate_rd16rs8rm0_wflags), | ||
1414 | 1393 | ||
1415 | /* BFI : cccc 0111 110x xxxx xxxx xxxx x001 xxxx : */ | 1394 | /* SMLAD cccc 0111 0000 xxxx xxxx xxxx 00x1 xxxx */ |
1416 | /* BFC : cccc 0111 110x xxxx xxxx xxxx x001 1111 : */ | 1395 | /* SMLSD cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx */ |
1417 | if ((insn & 0x0fe00070) == 0x07c00010) { | 1396 | DECODE_OR (0x0ff00090, 0x07000010), |
1397 | /* SMMLA cccc 0111 0101 xxxx xxxx xxxx 00x1 xxxx */ | ||
1398 | DECODE_OR (0x0ff000d0, 0x07500010), | ||
1399 | /* USADA8 cccc 0111 1000 xxxx xxxx xxxx 0001 xxxx */ | ||
1400 | DECODE_CUSTOM (0x0ff000f0, 0x07800010, prep_emulate_rd16rn12rs8rm0_wflags), | ||
1418 | 1401 | ||
1419 | if ((insn & 0x0000000f) == 0x0000000f) | 1402 | /* SMMLS cccc 0111 0101 xxxx xxxx xxxx 11x1 xxxx */ |
1420 | return prep_emulate_rd12_modify(insn, asi); | 1403 | DECODE_CUSTOM (0x0ff000d0, 0x075000d0, prep_emulate_rd16rn12rs8rm0_wflags), |
1421 | else | ||
1422 | return prep_emulate_rd12rn0_modify(insn, asi); | ||
1423 | } | ||
1424 | 1404 | ||
1425 | return INSN_REJECTED; | 1405 | /* SBFX cccc 0111 101x xxxx xxxx xxxx x101 xxxx */ |
1426 | } | 1406 | /* UBFX cccc 0111 111x xxxx xxxx xxxx x101 xxxx */ |
1407 | DECODE_CUSTOM (0x0fa00070, 0x07a00050, prep_emulate_rd12rm0), | ||
1408 | |||
1409 | /* BFC cccc 0111 110x xxxx xxxx xxxx x001 1111 */ | ||
1410 | DECODE_CUSTOM (0x0fe0007f, 0x07c0001f, prep_emulate_rd12_modify), | ||
1411 | |||
1412 | /* BFI cccc 0111 110x xxxx xxxx xxxx x001 xxxx */ | ||
1413 | DECODE_CUSTOM (0x0fe00070, 0x07c00010, prep_emulate_rd12rn0_modify), | ||
1414 | |||
1415 | DECODE_END | ||
1416 | }; | ||
1427 | 1417 | ||
1428 | static enum kprobe_insn __kprobes | 1418 | static enum kprobe_insn __kprobes |
1429 | space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi) | 1419 | space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi) |
@@ -1532,7 +1522,7 @@ arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi) | |||
1532 | 1522 | ||
1533 | else if ((insn & 0x0f000010) == 0x07000010) | 1523 | else if ((insn & 0x0f000010) == 0x07000010) |
1534 | 1524 | ||
1535 | return space_cccc_0111__1(insn, asi); | 1525 | return kprobe_decode_insn(insn, asi, arm_cccc_0111_____xxx1_table, false); |
1536 | 1526 | ||
1537 | else if ((insn & 0x0c000000) == 0x04000000) | 1527 | else if ((insn & 0x0c000000) == 0x04000000) |
1538 | 1528 | ||