aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/kernel/probes-thumb.c
blob: 4131351e812f47a876a448e7c62461c5b3b2acff (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
/*
 * arch/arm/kernel/probes-thumb.c
 *
 * Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/module.h>

#include "probes.h"
#include "probes-thumb.h"


static const union decode_item t32_table_1110_100x_x0xx[] = {
	/* Load/store multiple instructions */

	/* Rn is PC		1110 100x x0xx 1111 xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xfe4f0000, 0xe80f0000),

	/* SRS			1110 1000 00x0 xxxx xxxx xxxx xxxx xxxx */
	/* RFE			1110 1000 00x1 xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xffc00000, 0xe8000000),
	/* SRS			1110 1001 10x0 xxxx xxxx xxxx xxxx xxxx */
	/* RFE			1110 1001 10x1 xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xffc00000, 0xe9800000),

	/* STM Rn, {...pc}	1110 100x x0x0 xxxx 1xxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xfe508000, 0xe8008000),
	/* LDM Rn, {...lr,pc}	1110 100x x0x1 xxxx 11xx xxxx xxxx xxxx */
	DECODE_REJECT	(0xfe50c000, 0xe810c000),
	/* LDM/STM Rn, {...sp}	1110 100x x0xx xxxx xx1x xxxx xxxx xxxx */
	DECODE_REJECT	(0xfe402000, 0xe8002000),

	/* STMIA		1110 1000 10x0 xxxx xxxx xxxx xxxx xxxx */
	/* LDMIA		1110 1000 10x1 xxxx xxxx xxxx xxxx xxxx */
	/* STMDB		1110 1001 00x0 xxxx xxxx xxxx xxxx xxxx */
	/* LDMDB		1110 1001 00x1 xxxx xxxx xxxx xxxx xxxx */
	DECODE_CUSTOM	(0xfe400000, 0xe8000000, PROBES_T32_LDMSTM),

	DECODE_END
};

static const union decode_item t32_table_1110_100x_x1xx[] = {
	/* Load/store dual, load/store exclusive, table branch */

	/* STRD (immediate)	1110 1000 x110 xxxx xxxx xxxx xxxx xxxx */
	/* LDRD (immediate)	1110 1000 x111 xxxx xxxx xxxx xxxx xxxx */
	DECODE_OR	(0xff600000, 0xe8600000),
	/* STRD (immediate)	1110 1001 x1x0 xxxx xxxx xxxx xxxx xxxx */
	/* LDRD (immediate)	1110 1001 x1x1 xxxx xxxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xff400000, 0xe9400000, PROBES_T32_LDRDSTRD,
						 REGS(NOPCWB, NOSPPC, NOSPPC, 0, 0)),

	/* TBB			1110 1000 1101 xxxx xxxx xxxx 0000 xxxx */
	/* TBH			1110 1000 1101 xxxx xxxx xxxx 0001 xxxx */
	DECODE_SIMULATEX(0xfff000e0, 0xe8d00000, PROBES_T32_TABLE_BRANCH,
						 REGS(NOSP, 0, 0, 0, NOSPPC)),

	/* STREX		1110 1000 0100 xxxx xxxx xxxx xxxx xxxx */
	/* LDREX		1110 1000 0101 xxxx xxxx xxxx xxxx xxxx */
	/* STREXB		1110 1000 1100 xxxx xxxx xxxx 0100 xxxx */
	/* STREXH		1110 1000 1100 xxxx xxxx xxxx 0101 xxxx */
	/* STREXD		1110 1000 1100 xxxx xxxx xxxx 0111 xxxx */
	/* LDREXB		1110 1000 1101 xxxx xxxx xxxx 0100 xxxx */
	/* LDREXH		1110 1000 1101 xxxx xxxx xxxx 0101 xxxx */
	/* LDREXD		1110 1000 1101 xxxx xxxx xxxx 0111 xxxx */
	/* And unallocated instructions...				*/
	DECODE_END
};

static const union decode_item t32_table_1110_101x[] = {
	/* Data-processing (shifted register)				*/

	/* TST			1110 1010 0001 xxxx xxxx 1111 xxxx xxxx */
	/* TEQ			1110 1010 1001 xxxx xxxx 1111 xxxx xxxx */
	DECODE_EMULATEX	(0xff700f00, 0xea100f00, PROBES_T32_TST,
						 REGS(NOSPPC, 0, 0, 0, NOSPPC)),

	/* CMN			1110 1011 0001 xxxx xxxx 1111 xxxx xxxx */
	DECODE_OR	(0xfff00f00, 0xeb100f00),
	/* CMP			1110 1011 1011 xxxx xxxx 1111 xxxx xxxx */
	DECODE_EMULATEX	(0xfff00f00, 0xebb00f00, PROBES_T32_TST,
						 REGS(NOPC, 0, 0, 0, NOSPPC)),

	/* MOV			1110 1010 010x 1111 xxxx xxxx xxxx xxxx */
	/* MVN			1110 1010 011x 1111 xxxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xffcf0000, 0xea4f0000, PROBES_T32_MOV,
						 REGS(0, 0, NOSPPC, 0, NOSPPC)),

	/* ???			1110 1010 101x xxxx xxxx xxxx xxxx xxxx */
	/* ???			1110 1010 111x xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xffa00000, 0xeaa00000),
	/* ???			1110 1011 001x xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xffe00000, 0xeb200000),
	/* ???			1110 1011 100x xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xffe00000, 0xeb800000),
	/* ???			1110 1011 111x xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xffe00000, 0xebe00000),

	/* ADD/SUB SP, SP, Rm, LSL #0..3				*/
	/*			1110 1011 x0xx 1101 x000 1101 xx00 xxxx */
	DECODE_EMULATEX	(0xff4f7f30, 0xeb0d0d00, PROBES_T32_ADDSUB,
						 REGS(SP, 0, SP, 0, NOSPPC)),

	/* ADD/SUB SP, SP, Rm, shift					*/
	/*			1110 1011 x0xx 1101 xxxx 1101 xxxx xxxx */
	DECODE_REJECT	(0xff4f0f00, 0xeb0d0d00),

	/* ADD/SUB Rd, SP, Rm, shift					*/
	/*			1110 1011 x0xx 1101 xxxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xff4f0000, 0xeb0d0000, PROBES_T32_ADDSUB,
						 REGS(SP, 0, NOPC, 0, NOSPPC)),

	/* AND			1110 1010 000x xxxx xxxx xxxx xxxx xxxx */
	/* BIC			1110 1010 001x xxxx xxxx xxxx xxxx xxxx */
	/* ORR			1110 1010 010x xxxx xxxx xxxx xxxx xxxx */
	/* ORN			1110 1010 011x xxxx xxxx xxxx xxxx xxxx */
	/* EOR			1110 1010 100x xxxx xxxx xxxx xxxx xxxx */
	/* PKH			1110 1010 110x xxxx xxxx xxxx xxxx xxxx */
	/* ADD			1110 1011 000x xxxx xxxx xxxx xxxx xxxx */
	/* ADC			1110 1011 010x xxxx xxxx xxxx xxxx xxxx */
	/* SBC			1110 1011 011x xxxx xxxx xxxx xxxx xxxx */
	/* SUB			1110 1011 101x xxxx xxxx xxxx xxxx xxxx */
	/* RSB			1110 1011 110x xxxx xxxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfe000000, 0xea000000, PROBES_T32_LOGICAL,
						 REGS(NOSPPC, 0, NOSPPC, 0, NOSPPC)),

	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, PROBES_T32_TST,
						 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, PROBES_T32_CMP,
						 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, PROBES_T32_MOV,
						 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, PROBES_T32_ADDSUB,
						 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, PROBES_T32_LOGICAL,
						 REGS(NOSPPC, 0, NOSPPC, 0, 0)),

	DECODE_END
};

static const union decode_item t32_table_1111_0x1x___0[] = {
	/* Data-processing (plain binary immediate)			*/

	/* ADDW Rd, PC, #imm	1111 0x10 0000 1111 0xxx xxxx xxxx xxxx */
	DECODE_OR	(0xfbff8000, 0xf20f0000),
	/* SUBW	Rd, PC, #imm	1111 0x10 1010 1111 0xxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfbff8000, 0xf2af0000, PROBES_T32_ADDWSUBW_PC,
						 REGS(PC, 0, NOSPPC, 0, 0)),

	/* ADDW SP, SP, #imm	1111 0x10 0000 1101 0xxx 1101 xxxx xxxx */
	DECODE_OR	(0xfbff8f00, 0xf20d0d00),
	/* SUBW	SP, SP, #imm	1111 0x10 1010 1101 0xxx 1101 xxxx xxxx */
	DECODE_EMULATEX	(0xfbff8f00, 0xf2ad0d00, PROBES_T32_ADDWSUBW,
						 REGS(SP, 0, SP, 0, 0)),

	/* ADDW			1111 0x10 0000 xxxx 0xxx xxxx xxxx xxxx */
	DECODE_OR	(0xfbf08000, 0xf2000000),
	/* SUBW			1111 0x10 1010 xxxx 0xxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfbf08000, 0xf2a00000, PROBES_T32_ADDWSUBW,
						 REGS(NOPCX, 0, NOSPPC, 0, 0)),

	/* MOVW			1111 0x10 0100 xxxx 0xxx xxxx xxxx xxxx */
	/* MOVT			1111 0x10 1100 xxxx 0xxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfb708000, 0xf2400000, PROBES_T32_MOVW,
						 REGS(0, 0, NOSPPC, 0, 0)),

	/* SSAT16		1111 0x11 0010 xxxx 0000 xxxx 00xx xxxx */
	/* SSAT			1111 0x11 00x0 xxxx 0xxx xxxx xxxx xxxx */
	/* USAT16		1111 0x11 1010 xxxx 0000 xxxx 00xx xxxx */
	/* USAT			1111 0x11 10x0 xxxx 0xxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfb508000, 0xf3000000, PROBES_T32_SAT,
						 REGS(NOSPPC, 0, NOSPPC, 0, 0)),

	/* SFBX			1111 0x11 0100 xxxx 0xxx xxxx xxxx xxxx */
	/* UFBX			1111 0x11 1100 xxxx 0xxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfb708000, 0xf3400000, PROBES_T32_BITFIELD,
						 REGS(NOSPPC, 0, NOSPPC, 0, 0)),

	/* BFC			1111 0x11 0110 1111 0xxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfbff8000, 0xf36f0000, PROBES_T32_BITFIELD,
						 REGS(0, 0, NOSPPC, 0, 0)),

	/* BFI			1111 0x11 0110 xxxx 0xxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfbf08000, 0xf3600000, PROBES_T32_BITFIELD,
						 REGS(NOSPPCX, 0, NOSPPC, 0, 0)),

	DECODE_END
};

static const union decode_item t32_table_1111_0xxx___1[] = {
	/* Branches and miscellaneous control				*/

	/* YIELD		1111 0011 1010 xxxx 10x0 x000 0000 0001 */
	DECODE_OR	(0xfff0d7ff, 0xf3a08001),
	/* SEV			1111 0011 1010 xxxx 10x0 x000 0000 0100 */
	DECODE_EMULATE	(0xfff0d7ff, 0xf3a08004, PROBES_T32_SEV),
	/* NOP			1111 0011 1010 xxxx 10x0 x000 0000 0000 */
	/* WFE			1111 0011 1010 xxxx 10x0 x000 0000 0010 */
	/* WFI			1111 0011 1010 xxxx 10x0 x000 0000 0011 */
	DECODE_SIMULATE	(0xfff0d7fc, 0xf3a08000, PROBES_T32_WFE),

	/* MRS Rd, CPSR		1111 0011 1110 xxxx 10x0 xxxx xxxx xxxx */
	DECODE_SIMULATEX(0xfff0d000, 0xf3e08000, PROBES_T32_MRS,
						 REGS(0, 0, NOSPPC, 0, 0)),

	/*
	 * Unsupported instructions
	 *			1111 0x11 1xxx xxxx 10x0 xxxx xxxx xxxx
	 *
	 * MSR			1111 0011 100x xxxx 10x0 xxxx xxxx xxxx
	 * DBG hint		1111 0011 1010 xxxx 10x0 x000 1111 xxxx
	 * Unallocated hints	1111 0011 1010 xxxx 10x0 x000 xxxx xxxx
	 * CPS			1111 0011 1010 xxxx 10x0 xxxx xxxx xxxx
	 * CLREX/DSB/DMB/ISB	1111 0011 1011 xxxx 10x0 xxxx xxxx xxxx
	 * BXJ			1111 0011 1100 xxxx 10x0 xxxx xxxx xxxx
	 * SUBS PC,LR,#<imm8>	1111 0011 1101 xxxx 10x0 xxxx xxxx xxxx
	 * MRS Rd, SPSR		1111 0011 1111 xxxx 10x0 xxxx xxxx xxxx
	 * SMC			1111 0111 1111 xxxx 1000 xxxx xxxx xxxx
	 * UNDEFINED		1111 0111 1111 xxxx 1010 xxxx xxxx xxxx
	 * ???			1111 0111 1xxx xxxx 1010 xxxx xxxx xxxx
	 */
	DECODE_REJECT	(0xfb80d000, 0xf3808000),

	/* Bcc			1111 0xxx xxxx xxxx 10x0 xxxx xxxx xxxx */
	DECODE_CUSTOM	(0xf800d000, 0xf0008000, PROBES_T32_BRANCH_COND),

	/* BLX			1111 0xxx xxxx xxxx 11x0 xxxx xxxx xxx0 */
	DECODE_OR	(0xf800d001, 0xf000c000),
	/* B			1111 0xxx xxxx xxxx 10x1 xxxx xxxx xxxx */
	/* BL			1111 0xxx xxxx xxxx 11x1 xxxx xxxx xxxx */
	DECODE_SIMULATE	(0xf8009000, 0xf0009000, PROBES_T32_BRANCH),

	DECODE_END
};

static const union decode_item t32_table_1111_100x_x0x1__1111[] = {
	/* Memory hints							*/

	/* PLD (literal)	1111 1000 x001 1111 1111 xxxx xxxx xxxx */
	/* PLI (literal)	1111 1001 x001 1111 1111 xxxx xxxx xxxx */
	DECODE_SIMULATE	(0xfe7ff000, 0xf81ff000, PROBES_T32_PLDI),

	/* PLD{W} (immediate)	1111 1000 10x1 xxxx 1111 xxxx xxxx xxxx */
	DECODE_OR	(0xffd0f000, 0xf890f000),
	/* PLD{W} (immediate)	1111 1000 00x1 xxxx 1111 1100 xxxx xxxx */
	DECODE_OR	(0xffd0ff00, 0xf810fc00),
	/* PLI (immediate)	1111 1001 1001 xxxx 1111 xxxx xxxx xxxx */
	DECODE_OR	(0xfff0f000, 0xf990f000),
	/* PLI (immediate)	1111 1001 0001 xxxx 1111 1100 xxxx xxxx */
	DECODE_SIMULATEX(0xfff0ff00, 0xf910fc00, PROBES_T32_PLDI,
						 REGS(NOPCX, 0, 0, 0, 0)),

	/* PLD{W} (register)	1111 1000 00x1 xxxx 1111 0000 00xx xxxx */
	DECODE_OR	(0xffd0ffc0, 0xf810f000),
	/* PLI (register)	1111 1001 0001 xxxx 1111 0000 00xx xxxx */
	DECODE_SIMULATEX(0xfff0ffc0, 0xf910f000, PROBES_T32_PLDI,
						 REGS(NOPCX, 0, 0, 0, NOSPPC)),

	/* Other unallocated instructions...				*/
	DECODE_END
};

static const union decode_item t32_table_1111_100x[] = {
	/* Store/Load single data item					*/

	/* ???			1111 100x x11x xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xfe600000, 0xf8600000),

	/* ???			1111 1001 0101 xxxx xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xfff00000, 0xf9500000),

	/* ???			1111 100x 0xxx xxxx xxxx 10x0 xxxx xxxx */
	DECODE_REJECT	(0xfe800d00, 0xf8000800),

	/* STRBT		1111 1000 0000 xxxx xxxx 1110 xxxx xxxx */
	/* STRHT		1111 1000 0010 xxxx xxxx 1110 xxxx xxxx */
	/* STRT			1111 1000 0100 xxxx xxxx 1110 xxxx xxxx */
	/* LDRBT		1111 1000 0001 xxxx xxxx 1110 xxxx xxxx */
	/* LDRSBT		1111 1001 0001 xxxx xxxx 1110 xxxx xxxx */
	/* LDRHT		1111 1000 0011 xxxx xxxx 1110 xxxx xxxx */
	/* LDRSHT		1111 1001 0011 xxxx xxxx 1110 xxxx xxxx */
	/* LDRT			1111 1000 0101 xxxx xxxx 1110 xxxx xxxx */
	DECODE_REJECT	(0xfe800f00, 0xf8000e00),

	/* STR{,B,H} Rn,[PC...]	1111 1000 xxx0 1111 xxxx xxxx xxxx xxxx */
	DECODE_REJECT	(0xff1f0000, 0xf80f0000),

	/* STR{,B,H} PC,[Rn...]	1111 1000 xxx0 xxxx 1111 xxxx xxxx xxxx */
	DECODE_REJECT	(0xff10f000, 0xf800f000),

	/* LDR (literal)	1111 1000 x101 1111 xxxx xxxx xxxx xxxx */
	DECODE_SIMULATEX(0xff7f0000, 0xf85f0000, PROBES_T32_LDR_LIT,
						 REGS(PC, ANY, 0, 0, 0)),

	/* STR (immediate)	1111 1000 0100 xxxx xxxx 1xxx xxxx xxxx */
	/* LDR (immediate)	1111 1000 0101 xxxx xxxx 1xxx xxxx xxxx */
	DECODE_OR	(0xffe00800, 0xf8400800),
	/* STR (immediate)	1111 1000 1100 xxxx xxxx xxxx xxxx xxxx */
	/* LDR (immediate)	1111 1000 1101 xxxx xxxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xffe00000, 0xf8c00000, PROBES_T32_LDRSTR,
						 REGS(NOPCX, ANY, 0, 0, 0)),

	/* STR (register)	1111 1000 0100 xxxx xxxx 0000 00xx xxxx */
	/* LDR (register)	1111 1000 0101 xxxx xxxx 0000 00xx xxxx */
	DECODE_EMULATEX	(0xffe00fc0, 0xf8400000, PROBES_T32_LDRSTR,
						 REGS(NOPCX, ANY, 0, 0, NOSPPC)),

	/* LDRB (literal)	1111 1000 x001 1111 xxxx xxxx xxxx xxxx */
	/* LDRSB (literal)	1111 1001 x001 1111 xxxx xxxx xxxx xxxx */
	/* LDRH (literal)	1111 1000 x011 1111 xxxx xxxx xxxx xxxx */
	/* LDRSH (literal)	1111 1001 x011 1111 xxxx xxxx xxxx xxxx */
	DECODE_SIMULATEX(0xfe5f0000, 0xf81f0000, PROBES_T32_LDR_LIT,
						 REGS(PC, NOSPPCX, 0, 0, 0)),

	/* STRB (immediate)	1111 1000 0000 xxxx xxxx 1xxx xxxx xxxx */
	/* STRH (immediate)	1111 1000 0010 xxxx xxxx 1xxx xxxx xxxx */
	/* LDRB (immediate)	1111 1000 0001 xxxx xxxx 1xxx xxxx xxxx */
	/* LDRSB (immediate)	1111 1001 0001 xxxx xxxx 1xxx xxxx xxxx */
	/* LDRH (immediate)	1111 1000 0011 xxxx xxxx 1xxx xxxx xxxx */
	/* LDRSH (immediate)	1111 1001 0011 xxxx xxxx 1xxx xxxx xxxx */
	DECODE_OR	(0xfec00800, 0xf8000800),
	/* STRB (immediate)	1111 1000 1000 xxxx xxxx xxxx xxxx xxxx */
	/* STRH (immediate)	1111 1000 1010 xxxx xxxx xxxx xxxx xxxx */
	/* LDRB (immediate)	1111 1000 1001 xxxx xxxx xxxx xxxx xxxx */
	/* LDRSB (immediate)	1111 1001 1001 xxxx xxxx xxxx xxxx xxxx */
	/* LDRH (immediate)	1111 1000 1011 xxxx xxxx xxxx xxxx xxxx */
	/* LDRSH (immediate)	1111 1001 1011 xxxx xxxx xxxx xxxx xxxx */
	DECODE_EMULATEX	(0xfec00000, 0xf8800000, PROBES_T32_LDRSTR,
						 REGS(NOPCX, NOSPPCX, 0, 0, 0)),

	/* STRB (register)	1111 1000 0000 xxxx xxxx 0000 00xx xxxx */
	/* STRH (register)	1111 1000 0010 xxxx xxxx 0000 00xx xxxx */
	/* LDRB (register)	1111 1000 0001 xxxx xxxx 0000 00xx xxxx */
	/* LDRSB (register)	1111 1001 0001 xxxx xxxx 0000 00xx xxxx */
	/* LDRH (register)	1111 1000 0011 xxxx xxxx 0000 00xx xxxx */
	/* LDRSH (register)	1111 1001 0011 xxxx xxxx 0000 00xx xxxx */
	DECODE_EMULATEX	(0xfe800fc0, 0xf8000000, PROBES_T32_LDRSTR,
						 REGS(NOPCX, NOSPPCX, 0, 0, NOSPPC)),

	/* Other unallocated instructions...				*/
	DECODE_END
};

static const union decode_item t32_table_1111_1010___1111[] = {
	/* Data-processing (register)					*/

	/* ???			1111 1010 011x xxxx 1111 xxxx 1xxx xxxx */
	DECODE_REJECT	(0xffe0f080, 0xfa60f080),

	/* SXTH			1111 1010 0000 1111 1111 xxxx 1xxx xxxx */
	/* UXTH			1111 1010 0001 1111 1111 xxxx 1xxx xxxx */
	/* SXTB16		1111 1010 0010 1111 1111 xxxx 1xxx xxxx */
	/* UXTB16		1111 1010 0011 1111 1111 xxxx 1xxx xxxx */
	/* SXTB			1111 1010 0100 1111 1111 xxxx 1xxx xxxx */
	/* UXTB			1111 1010 0101 1111 1111 xxxx 1xxx xxxx */
	DECODE_EMULATEX	(0xff8ff080, 0xfa0ff080, PROBES_T32_SIGN_EXTEND,
						 REGS(0, 0, NOSPPC, 0, NOSPPC)),


	/* ???			1111 1010 1xxx xxxx 1111 xxxx 0x11 xxxx */
	DECODE_REJECT	(0xff80f0b0, 0xfa80f030),
	/* ???			1111 1010 1x11 xxxx 1111 xxxx 0xxx xxxx */
	DECODE_REJECT	(0xffb0f080, 0xfab0f000),

	/* SADD16		1111 1010 1001 xxxx 1111 xxxx 0000 xxxx */
	/* SASX			1111 1010 1010 xxxx 1111 xxxx 0000 xxxx */
	/* SSAX			1111 1010 1110 xxxx 1111 xxxx 0000 xxxx */
	/* SSUB16		1111 1010 1101 xxxx 1111 xxxx 0000 xxxx */
	/* SADD8		1111 1010 1000 xxxx 1111 xxxx 0000 xxxx */
	/* SSUB8		1111 1010 1100 xxxx 1111 xxxx 0000 xxxx */

	/* QADD16		1111 1010 1001 xxxx 1111 xxxx 0001 xxxx */
	/* QASX			1111 1010 1010 xxxx 1111 xxxx 0001 xxxx */
	/* QSAX			1111 1010 1110 xxxx 1111 xxxx 0001 xxxx */
	/* QSUB16		1111 1010 1101 xxxx 1111 xxxx 0001 xxxx */
	/* QADD8		1111 1010 1000 xxxx 1111 xxxx 0001 xxxx */
	/* QSUB8		1111 1010 1100 xxxx 1111 xxxx 0001 xxxx */

	/* SHADD16		1111 1010 1001 xxxx 1111 xxxx 0010 xxxx */
	/* SHASX		1111 1010 1010 xxxx 1111 xxxx 0010 xxxx */
	/* SHSAX		1111 1010 1110 xxxx 1111 xxxx 0010 xxxx */
	/* SHSUB16		1111 1010 1101 xxxx 1111 xxxx 0010 xxxx */
	/* SHADD8		1111 1010 1000 xxxx 1111 xxxx 0010 xxxx */
	/* SHSUB8		1111 1010 1100 xxxx 1111 xxxx 0010 xxxx */

	/* UADD16		1111 1010 1001 xxxx 1111 xxxx 0100 xxxx */
	/* UASX			1111 1010 1010 xxxx 1111 xxxx 0100 xxxx */
	/* USAX			1111 1010 1110 xxxx 1111 xxxx 0100 xxxx */
	/* USUB16		1111 1010 1101 xxxx 1111 xxxx 0100 xxxx */
	/* UADD8		1111 1010 1000 xxxx 1111 xxxx 0100 xxxx */
	/* USUB8		1111 1010 1100 xxxx 1111 xxxx 0100 xxxx */

	/* UQADD16		1111 1010 1001 xxxx 1111 xxxx 0101 xxxx */
	/* UQASX		1111 1010 1010 xxxx 1111 xxxx 0101 xxxx */
	/* UQSAX		1111 1010 1110 xxxx 1111 xxxx 0101 xxxx */
	/* UQSUB16		1111 1010 1101 xxxx 1111 xxxx 0101 xxxx */
	/* UQADD8		1111 1010 1000 xxxx 1111 xxxx 0101 xxxx */
	/* UQSUB8		1111 1010 1100 xxxx 1111 xxxx 0101 xxxx */

	/* UHADD16		1111 1010 1001 xxxx 1111 xxxx 0110 xxxx */
	/* UHASX		1111 1010 1010 xxxx 1111 xxxx 0110 xxxx */
	/* UHSAX		1111 1010 1110 xxxx 1111 xxxx 0110 xxxx */
	/* UHSUB16		1111 1010 1101 xxxx 1111 xxxx 0110 xxxx */
	/* UHADD8		1111 1010 1000 xxxx 1111 xxxx 0110 xxxx */
	/* UHSUB8		1111 1010 1100 xxxx 1111 xxxx 0110 xxxx */
	DECODE_OR	(0xff80f080, 0xfa80f000),

	/* SXTAH		1111 1010 0000 xxxx 1111 xxxx 1xxx xxxx */
	/* UXTAH		1111 1010 0001 xxxx 1111 xxxx 1xxx xxxx */
	/* SXTAB16		1111 1010 0010 xxxx 1111 xxxx 1xxx xxxx */
	/* UXTAB16		1111 1010 0011 xxxx 1111 xxxx 1xxx xxxx */
	/* SXTAB		1111 1010 0100 xxxx 1111 xxxx 1xxx xxxx */
	/* UXTAB		1111 1010 0101 xxxx 1111 xxxx 1xxx xxxx */
	DECODE_OR	(0xff80f080, 0xfa00f080),

	/* QADD			1111 1010 1000 xxxx 1111 xxxx 1000 xxxx */
	/* QDADD		1111 1010 1000 xxxx 1111 xxxx 1001 xxxx */
	/* QSUB			1111 1010 1000 xxxx 1111 xxxx 1010 xxxx */
	/* QDSUB		1111 1010 1000 xxxx 1111 xxxx 1011 xxxx */
	DECODE_OR	(0xfff0f0c0, 0xfa80f080),

	/* SEL			1111 1010 1010 xxxx 1111 xxxx 1000 xxxx */
	DECODE_OR	(0xfff0f0f0, 0xfaa0f080),

	/* LSL			1111 1010 000x xxxx 1111 xxxx 0000 xxxx */
	/* LSR			1111 1010 001x xxxx 1111 xxxx 0000 xxxx */
	/* ASR			1111 1010 010x xxxx 1111 xxxx 0000 xxxx */
	/* ROR			1111 1010 011x xxxx 1111 xxxx 0000 xxxx */
	DECODE_EMULATEX	(0xff80f0f0, 0xfa00f000, PROBES_T32_MEDIA,
						 REGS(NOSPPC, 0, NOSPPC, 0, NOSPPC)),

	/* CLZ			1111 1010 1010 xxxx 1111 xxxx 1000 xxxx */
	DECODE_OR	(0xfff0f0f0, 0xfab0f080),

	/* REV			1111 1010 1001 xxxx 1111 xxxx 1000 xxxx */
	/* REV16		1111 1010 1001 xxxx 1111 xxxx 1001 xxxx */
	/* RBIT			1111 1010 1001 xxxx 1111 xxxx 1010 xxxx */
	/* REVSH		1111 1010 1001 xxxx 1111 xxxx 1011 xxxx */
	DECODE_EMULATEX	(0xfff0f0c0, 0xfa90f080, PROBES_T32_REVERSE,
						 REGS(NOSPPC, 0, NOSPPC, 0, SAMEAS16)),

	/* Other unallocated instructions...				*/
	DECODE_END
};

static const union decode_item t32_table_1111_1011_0[] = {
	/* Multiply, multiply accumulate, and absolute difference	*/

	/* ???			1111 1011 0000 xxxx 1111 xxxx 0001 xxxx */
	DECODE_REJECT	(0xfff0f0f0, 0xfb00f010),
	/* ???			1111 1011 0111 xxxx 1111 xxxx 0001 xxxx */
	DECODE_REJECT	(0xfff0f0f0, 0xfb70f010),

	/* SMULxy		1111 1011 0001 xxxx 1111 xxxx 00xx xxxx */
	DECODE_OR	(0xfff0f0c0, 0xfb10f000),
	/* MUL			1111 1011 0000 xxxx 1111 xxxx 0000 xxxx */
	/* SMUAD{X}		1111 1011 0010 xxxx 1111 xxxx 000x xxxx */
	/* SMULWy		1111 1011 0011 xxxx 1111 xxxx 000x xxxx */
	/* SMUSD{X}		1111 1011 0100 xxxx 1111 xxxx 000x xxxx */
	/* SMMUL{R}		1111 1011 0101 xxxx 1111 xxxx 000x xxxx */
	/* USAD8		1111 1011 0111 xxxx 1111 xxxx 0000 xxxx */
	DECODE_EMULATEX	(0xff80f0e0, 0xfb00f000, PROBES_T32_MUL_ADD,
						 REGS(NOSPPC, 0, NOSPPC, 0, NOSPPC)),

	/* ???			1111 1011 0111 xxxx xxxx xxxx 0001 xxxx */
	DECODE_REJECT	(0xfff000f0, 0xfb700010),

	/* SMLAxy		1111 1011 0001 xxxx xxxx xxxx 00xx xxxx */
	DECODE_OR	(0xfff000c0, 0xfb100000),
	/* MLA			1111 1011 0000 xxxx xxxx xxxx 0000 xxxx */
	/* MLS			1111 1011 0000 xxxx xxxx xxxx 0001 xxxx */
	/* SMLAD{X}		1111 1011 0010 xxxx xxxx xxxx 000x xxxx */
	/* SMLAWy		1111 1011 0011 xxxx xxxx xxxx 000x xxxx */
	/* SMLSD{X}		1111 1011 0100 xxxx xxxx xxxx 000x xxxx */
	/* SMMLA{R}		1111 1011 0101 xxxx xxxx xxxx 000x xxxx */
	/* SMMLS{R}		1111 1011 0110 xxxx xxxx xxxx 000x xxxx */
	/* USADA8		1111 1011 0111 xxxx xxxx xxxx 0000 xxxx */
	DECODE_EMULATEX	(0xff8000c0, 0xfb000000,  PROBES_T32_MUL_ADD2,
						 REGS(NOSPPC, NOSPPCX, NOSPPC, 0, NOSPPC)),

	/* Other unallocated instructions...				*/
	DECODE_END
};

static const union decode_item t32_table_1111_1011_1[] = {
	/* Long multiply, long multiply accumulate, and divide		*/

	/* UMAAL		1111 1011 1110 xxxx xxxx xxxx 0110 xxxx */
	DECODE_OR	(0xfff000f0, 0xfbe00060),
	/* SMLALxy		1111 1011 1100 xxxx xxxx xxxx 10xx xxxx */
	DECODE_OR	(0xfff000c0, 0xfbc00080),
	/* SMLALD{X}		1111 1011 1100 xxxx xxxx xxxx 110x xxxx */
	/* SMLSLD{X}		1111 1011 1101 xxxx xxxx xxxx 110x xxxx */
	DECODE_OR	(0xffe000e0, 0xfbc000c0),
	/* SMULL		1111 1011 1000 xxxx xxxx xxxx 0000 xxxx */
	/* UMULL		1111 1011 1010 xxxx xxxx xxxx 0000 xxxx */
	/* SMLAL		1111 1011 1100 xxxx xxxx xxxx 0000 xxxx */
	/* UMLAL		1111 1011 1110 xxxx xxxx xxxx 0000 xxxx */
	DECODE_EMULATEX	(0xff9000f0, 0xfb800000, PROBES_T32_MUL_ADD_LONG,
						 REGS(NOSPPC, NOSPPC, NOSPPC, 0, NOSPPC)),

	/* SDIV			1111 1011 1001 xxxx xxxx xxxx 1111 xxxx */
	/* UDIV			1111 1011 1011 xxxx xxxx xxxx 1111 xxxx */
	/* Other unallocated instructions...				*/
	DECODE_END
};

const union decode_item probes_decode_thumb32_table[] = {

	/*
	 * Load/store multiple instructions
	 *			1110 100x x0xx xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xfe400000, 0xe8000000, t32_table_1110_100x_x0xx),

	/*
	 * Load/store dual, load/store exclusive, table branch
	 *			1110 100x x1xx xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xfe400000, 0xe8400000, t32_table_1110_100x_x1xx),

	/*
	 * Data-processing (shifted register)
	 *			1110 101x xxxx xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xfe000000, 0xea000000, t32_table_1110_101x),

	/*
	 * Coprocessor instructions
	 *			1110 11xx xxxx xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_REJECT	(0xfc000000, 0xec000000),

	/*
	 * Data-processing (modified immediate)
	 *			1111 0x0x xxxx xxxx 0xxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xfa008000, 0xf0000000, t32_table_1111_0x0x___0),

	/*
	 * Data-processing (plain binary immediate)
	 *			1111 0x1x xxxx xxxx 0xxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xfa008000, 0xf2000000, t32_table_1111_0x1x___0),

	/*
	 * Branches and miscellaneous control
	 *			1111 0xxx xxxx xxxx 1xxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xf8008000, 0xf0008000, t32_table_1111_0xxx___1),

	/*
	 * Advanced SIMD element or structure load/store instructions
	 *			1111 1001 xxx0 xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_REJECT	(0xff100000, 0xf9000000),

	/*
	 * Memory hints
	 *			1111 100x x0x1 xxxx 1111 xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xfe50f000, 0xf810f000, t32_table_1111_100x_x0x1__1111),

	/*
	 * Store single data item
	 *			1111 1000 xxx0 xxxx xxxx xxxx xxxx xxxx
	 * Load single data items
	 *			1111 100x xxx1 xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xfe000000, 0xf8000000, t32_table_1111_100x),

	/*
	 * Data-processing (register)
	 *			1111 1010 xxxx xxxx 1111 xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xff00f000, 0xfa00f000, t32_table_1111_1010___1111),

	/*
	 * Multiply, multiply accumulate, and absolute difference
	 *			1111 1011 0xxx xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xff800000, 0xfb000000, t32_table_1111_1011_0),

	/*
	 * Long multiply, long multiply accumulate, and divide
	 *			1111 1011 1xxx xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xff800000, 0xfb800000, t32_table_1111_1011_1),

	/*
	 * Coprocessor instructions
	 *			1111 11xx xxxx xxxx xxxx xxxx xxxx xxxx
	 */
	DECODE_END
};
#ifdef CONFIG_ARM_KPROBES_TEST_MODULE
EXPORT_SYMBOL_GPL(probes_decode_thumb32_table);
#endif

static const union decode_item t16_table_1011[] = {
	/* Miscellaneous 16-bit instructions		    */

	/* ADD (SP plus immediate)	1011 0000 0xxx xxxx */
	/* SUB (SP minus immediate)	1011 0000 1xxx xxxx */
	DECODE_SIMULATE	(0xff00, 0xb000, PROBES_T16_ADD_SP),

	/* CBZ				1011 00x1 xxxx xxxx */
	/* CBNZ				1011 10x1 xxxx xxxx */
	DECODE_SIMULATE	(0xf500, 0xb100, PROBES_T16_CBZ),

	/* SXTH				1011 0010 00xx xxxx */
	/* SXTB				1011 0010 01xx xxxx */
	/* UXTH				1011 0010 10xx xxxx */
	/* UXTB				1011 0010 11xx xxxx */
	/* REV				1011 1010 00xx xxxx */
	/* REV16			1011 1010 01xx xxxx */
	/* ???				1011 1010 10xx xxxx */
	/* REVSH			1011 1010 11xx xxxx */
	DECODE_REJECT	(0xffc0, 0xba80),
	DECODE_EMULATE	(0xf500, 0xb000, PROBES_T16_SIGN_EXTEND),

	/* PUSH				1011 010x xxxx xxxx */
	DECODE_CUSTOM	(0xfe00, 0xb400, PROBES_T16_PUSH),
	/* POP				1011 110x xxxx xxxx */
	DECODE_CUSTOM	(0xfe00, 0xbc00, PROBES_T16_POP),

	/*
	 * If-Then, and hints
	 *				1011 1111 xxxx xxxx
	 */

	/* YIELD			1011 1111 0001 0000 */
	DECODE_OR	(0xffff, 0xbf10),
	/* SEV				1011 1111 0100 0000 */
	DECODE_EMULATE	(0xffff, 0xbf40, PROBES_T16_SEV),
	/* NOP				1011 1111 0000 0000 */
	/* WFE				1011 1111 0010 0000 */
	/* WFI				1011 1111 0011 0000 */
	DECODE_SIMULATE	(0xffcf, 0xbf00, PROBES_T16_WFE),
	/* Unassigned hints		1011 1111 xxxx 0000 */
	DECODE_REJECT	(0xff0f, 0xbf00),
	/* IT				1011 1111 xxxx xxxx */
	DECODE_CUSTOM	(0xff00, 0xbf00, PROBES_T16_IT),

	/* SETEND			1011 0110 010x xxxx */
	/* CPS				1011 0110 011x xxxx */
	/* BKPT				1011 1110 xxxx xxxx */
	/* And unallocated instructions...		    */
	DECODE_END
};

const union decode_item probes_decode_thumb16_table[] = {

	/*
	 * Shift (immediate), add, subtract, move, and compare
	 *				00xx xxxx xxxx xxxx
	 */

	/* CMP (immediate)		0010 1xxx xxxx xxxx */
	DECODE_EMULATE	(0xf800, 0x2800, PROBES_T16_CMP),

	/* ADD (register)		0001 100x xxxx xxxx */
	/* SUB (register)		0001 101x xxxx xxxx */
	/* LSL (immediate)		0000 0xxx xxxx xxxx */
	/* LSR (immediate)		0000 1xxx xxxx xxxx */
	/* ASR (immediate)		0001 0xxx xxxx xxxx */
	/* ADD (immediate, Thumb)	0001 110x xxxx xxxx */
	/* SUB (immediate, Thumb)	0001 111x xxxx xxxx */
	/* MOV (immediate)		0010 0xxx xxxx xxxx */
	/* ADD (immediate, Thumb)	0011 0xxx xxxx xxxx */
	/* SUB (immediate, Thumb)	0011 1xxx xxxx xxxx */
	DECODE_EMULATE	(0xc000, 0x0000, PROBES_T16_ADDSUB),

	/*
	 * 16-bit Thumb data-processing instructions
	 *				0100 00xx xxxx xxxx
	 */

	/* TST (register)		0100 0010 00xx xxxx */
	DECODE_EMULATE	(0xffc0, 0x4200, PROBES_T16_CMP),
	/* CMP (register)		0100 0010 10xx xxxx */
	/* CMN (register)		0100 0010 11xx xxxx */
	DECODE_EMULATE	(0xff80, 0x4280, PROBES_T16_CMP),
	/* AND (register)		0100 0000 00xx xxxx */
	/* EOR (register)		0100 0000 01xx xxxx */
	/* LSL (register)		0100 0000 10xx xxxx */
	/* LSR (register)		0100 0000 11xx xxxx */
	/* ASR (register)		0100 0001 00xx xxxx */
	/* ADC (register)		0100 0001 01xx xxxx */
	/* SBC (register)		0100 0001 10xx xxxx */
	/* ROR (register)		0100 0001 11xx xxxx */
	/* RSB (immediate)		0100 0010 01xx xxxx */
	/* ORR (register)		0100 0011 00xx xxxx */
	/* MUL				0100 0011 00xx xxxx */
	/* BIC (register)		0100 0011 10xx xxxx */
	/* MVN (register)		0100 0011 10xx xxxx */
	DECODE_EMULATE	(0xfc00, 0x4000, PROBES_T16_LOGICAL),

	/*
	 * Special data instructions and branch and exchange
	 *				0100 01xx xxxx xxxx
	 */

	/* BLX pc			0100 0111 1111 1xxx */
	DECODE_REJECT	(0xfff8, 0x47f8),

	/* BX (register)		0100 0111 0xxx xxxx */
	/* BLX (register)		0100 0111 1xxx xxxx */
	DECODE_SIMULATE (0xff00, 0x4700, PROBES_T16_BLX),

	/* ADD pc, pc			0100 0100 1111 1111 */
	DECODE_REJECT	(0xffff, 0x44ff),

	/* ADD (register)		0100 0100 xxxx xxxx */
	/* CMP (register)		0100 0101 xxxx xxxx */
	/* MOV (register)		0100 0110 xxxx xxxx */
	DECODE_CUSTOM	(0xfc00, 0x4400, PROBES_T16_HIREGOPS),

	/*
	 * Load from Literal Pool
	 * LDR (literal)		0100 1xxx xxxx xxxx
	 */
	DECODE_SIMULATE	(0xf800, 0x4800, PROBES_T16_LDR_LIT),

	/*
	 * 16-bit Thumb Load/store instructions
	 *				0101 xxxx xxxx xxxx
	 *				011x xxxx xxxx xxxx
	 *				100x xxxx xxxx xxxx
	 */

	/* STR (register)		0101 000x xxxx xxxx */
	/* STRH (register)		0101 001x xxxx xxxx */
	/* STRB (register)		0101 010x xxxx xxxx */
	/* LDRSB (register)		0101 011x xxxx xxxx */
	/* LDR (register)		0101 100x xxxx xxxx */
	/* LDRH (register)		0101 101x xxxx xxxx */
	/* LDRB (register)		0101 110x xxxx xxxx */
	/* LDRSH (register)		0101 111x xxxx xxxx */
	/* STR (immediate, Thumb)	0110 0xxx xxxx xxxx */
	/* LDR (immediate, Thumb)	0110 1xxx xxxx xxxx */
	/* STRB (immediate, Thumb)	0111 0xxx xxxx xxxx */
	/* LDRB (immediate, Thumb)	0111 1xxx xxxx xxxx */
	DECODE_EMULATE	(0xc000, 0x4000, PROBES_T16_LDRHSTRH),
	/* STRH (immediate, Thumb)	1000 0xxx xxxx xxxx */
	/* LDRH (immediate, Thumb)	1000 1xxx xxxx xxxx */
	DECODE_EMULATE	(0xf000, 0x8000, PROBES_T16_LDRHSTRH),
	/* STR (immediate, Thumb)	1001 0xxx xxxx xxxx */
	/* LDR (immediate, Thumb)	1001 1xxx xxxx xxxx */
	DECODE_SIMULATE	(0xf000, 0x9000, PROBES_T16_LDRSTR),

	/*
	 * Generate PC-/SP-relative address
	 * ADR (literal)		1010 0xxx xxxx xxxx
	 * ADD (SP plus immediate)	1010 1xxx xxxx xxxx
	 */
	DECODE_SIMULATE	(0xf000, 0xa000, PROBES_T16_ADR),

	/*
	 * Miscellaneous 16-bit instructions
	 *				1011 xxxx xxxx xxxx
	 */
	DECODE_TABLE	(0xf000, 0xb000, t16_table_1011),

	/* STM				1100 0xxx xxxx xxxx */
	/* LDM				1100 1xxx xxxx xxxx */
	DECODE_EMULATE	(0xf000, 0xc000, PROBES_T16_LDMSTM),

	/*
	 * Conditional branch, and Supervisor Call
	 */

	/* Permanently UNDEFINED	1101 1110 xxxx xxxx */
	/* SVC				1101 1111 xxxx xxxx */
	DECODE_REJECT	(0xfe00, 0xde00),

	/* Conditional branch		1101 xxxx xxxx xxxx */
	DECODE_CUSTOM	(0xf000, 0xd000, PROBES_T16_BRANCH_COND),

	/*
	 * Unconditional branch
	 * B				1110 0xxx xxxx xxxx
	 */
	DECODE_SIMULATE	(0xf800, 0xe000, PROBES_T16_BRANCH),

	DECODE_END
};
#ifdef CONFIG_ARM_KPROBES_TEST_MODULE
EXPORT_SYMBOL_GPL(probes_decode_thumb16_table);
#endif

static unsigned long __kprobes thumb_check_cc(unsigned long cpsr)
{
	if (unlikely(in_it_block(cpsr)))
		return probes_condition_checks[current_cond(cpsr)](cpsr);
	return true;
}

static void __kprobes thumb16_singlestep(probes_opcode_t opcode,
		struct arch_probes_insn *asi,
		struct pt_regs *regs)
{
	regs->ARM_pc += 2;
	asi->insn_handler(opcode, asi, regs);
	regs->ARM_cpsr = it_advance(regs->ARM_cpsr);
}

static void __kprobes thumb32_singlestep(probes_opcode_t opcode,
		struct arch_probes_insn *asi,
		struct pt_regs *regs)
{
	regs->ARM_pc += 4;
	asi->insn_handler(opcode, asi, regs);
	regs->ARM_cpsr = it_advance(regs->ARM_cpsr);
}

enum probes_insn __kprobes
thumb16_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi,
			   bool emulate, const union decode_action *actions)
{
	asi->insn_singlestep = thumb16_singlestep;
	asi->insn_check_cc = thumb_check_cc;
	return probes_decode_insn(insn, asi, probes_decode_thumb16_table, true,
				  emulate, actions);
}

enum probes_insn __kprobes
thumb32_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi,
			   bool emulate, const union decode_action *actions)
{
	asi->insn_singlestep = thumb32_singlestep;
	asi->insn_check_cc = thumb_check_cc;
	return probes_decode_insn(insn, asi, probes_decode_thumb32_table, true,
				  emulate, actions);
}