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
|
//===-- ABIMacOSX_arm.cpp --------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "ABIMacOSX_arm.h"
#include "lldb/Core/ConstString.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegisterValue.h"
#include "lldb/Core/Scalar.h"
#include "lldb/Core/Value.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/UnwindPlan.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Triple.h"
#include "Utility/ARM_DWARF_Registers.h"
#include "Utility/ARM_GCC_Registers.h"
#include "Plugins/Process/Utility/ARMDefines.h"
#include <vector>
using namespace lldb;
using namespace lldb_private;
static RegisterInfo g_register_infos[] =
{
// NAME ALT SZ OFF ENCODING FORMAT COMPILER DWARF GENERIC GDB LLDB NATIVE VALUE REGS INVALIDATE REGS
// ========== ======= == === ============= ============ ======================= =================== =========================== ======================= ====================== ========== ===============
{ "r0", "arg1", 4, 0, eEncodingUint , eFormatHex, { gcc_r0, dwarf_r0, LLDB_REGNUM_GENERIC_ARG1, gdb_arm_r0, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r1", "arg2", 4, 0, eEncodingUint , eFormatHex, { gcc_r1, dwarf_r1, LLDB_REGNUM_GENERIC_ARG2, gdb_arm_r1, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r2", "arg3", 4, 0, eEncodingUint , eFormatHex, { gcc_r2, dwarf_r2, LLDB_REGNUM_GENERIC_ARG3, gdb_arm_r2, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r3", "arg4", 4, 0, eEncodingUint , eFormatHex, { gcc_r3, dwarf_r3, LLDB_REGNUM_GENERIC_ARG4, gdb_arm_r3, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r4", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r4, dwarf_r4, LLDB_INVALID_REGNUM, gdb_arm_r4, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r5", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r5, dwarf_r5, LLDB_INVALID_REGNUM, gdb_arm_r5, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r6", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r6, dwarf_r6, LLDB_INVALID_REGNUM, gdb_arm_r6, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r7", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r7, dwarf_r7, LLDB_REGNUM_GENERIC_FP, gdb_arm_r7, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r8", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r8, dwarf_r8, LLDB_INVALID_REGNUM, gdb_arm_r8, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r9", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r9, dwarf_r9, LLDB_INVALID_REGNUM, gdb_arm_r9, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r10", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r10, dwarf_r10, LLDB_INVALID_REGNUM, gdb_arm_r10, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r11", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r11, dwarf_r11, LLDB_INVALID_REGNUM, gdb_arm_r11, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r12", NULL, 4, 0, eEncodingUint , eFormatHex, { gcc_r12, dwarf_r12, LLDB_INVALID_REGNUM, gdb_arm_r12, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "sp", "r13", 4, 0, eEncodingUint , eFormatHex, { gcc_sp, dwarf_sp, LLDB_REGNUM_GENERIC_SP, gdb_arm_sp, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "lr", "r14", 4, 0, eEncodingUint , eFormatHex, { gcc_lr, dwarf_lr, LLDB_REGNUM_GENERIC_RA, gdb_arm_lr, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "pc", "r15", 4, 0, eEncodingUint , eFormatHex, { gcc_pc, dwarf_pc, LLDB_REGNUM_GENERIC_PC, gdb_arm_pc, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "cpsr", "psr", 4, 0, eEncodingUint , eFormatHex, { gcc_cpsr, dwarf_cpsr, LLDB_REGNUM_GENERIC_FLAGS, gdb_arm_cpsr, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s0", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s0, LLDB_INVALID_REGNUM, gdb_arm_s0, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s1", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s1, LLDB_INVALID_REGNUM, gdb_arm_s1, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s2", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s2, LLDB_INVALID_REGNUM, gdb_arm_s2, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s3", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s3, LLDB_INVALID_REGNUM, gdb_arm_s3, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s4", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s4, LLDB_INVALID_REGNUM, gdb_arm_s4, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s5", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s5, LLDB_INVALID_REGNUM, gdb_arm_s5, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s6", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s6, LLDB_INVALID_REGNUM, gdb_arm_s6, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s7", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s7, LLDB_INVALID_REGNUM, gdb_arm_s7, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s8", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s8, LLDB_INVALID_REGNUM, gdb_arm_s8, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s9", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s9, LLDB_INVALID_REGNUM, gdb_arm_s9, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s10", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s10, LLDB_INVALID_REGNUM, gdb_arm_s10, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s11", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s11, LLDB_INVALID_REGNUM, gdb_arm_s11, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s12", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s12, LLDB_INVALID_REGNUM, gdb_arm_s12, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s13", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s13, LLDB_INVALID_REGNUM, gdb_arm_s13, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s14", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s14, LLDB_INVALID_REGNUM, gdb_arm_s14, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s15", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s15, LLDB_INVALID_REGNUM, gdb_arm_s15, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s16", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s16, LLDB_INVALID_REGNUM, gdb_arm_s16, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s17", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s17, LLDB_INVALID_REGNUM, gdb_arm_s17, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s18", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s18, LLDB_INVALID_REGNUM, gdb_arm_s18, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s19", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s19, LLDB_INVALID_REGNUM, gdb_arm_s19, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s20", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s20, LLDB_INVALID_REGNUM, gdb_arm_s20, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s21", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s21, LLDB_INVALID_REGNUM, gdb_arm_s21, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s22", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s22, LLDB_INVALID_REGNUM, gdb_arm_s22, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s23", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s23, LLDB_INVALID_REGNUM, gdb_arm_s23, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s24", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s24, LLDB_INVALID_REGNUM, gdb_arm_s24, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s25", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s25, LLDB_INVALID_REGNUM, gdb_arm_s25, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s26", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s26, LLDB_INVALID_REGNUM, gdb_arm_s26, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s27", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s27, LLDB_INVALID_REGNUM, gdb_arm_s27, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s28", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s28, LLDB_INVALID_REGNUM, gdb_arm_s28, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s29", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s29, LLDB_INVALID_REGNUM, gdb_arm_s29, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s30", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s30, LLDB_INVALID_REGNUM, gdb_arm_s30, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "s31", NULL, 4, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_s31, LLDB_INVALID_REGNUM, gdb_arm_s31, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "fpscr", NULL, 4, 0, eEncodingUint , eFormatHex , { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,LLDB_INVALID_REGNUM, gdb_arm_fpscr, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d0", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d0, LLDB_INVALID_REGNUM, gdb_arm_d0, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d1", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d1, LLDB_INVALID_REGNUM, gdb_arm_d1, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d2", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d2, LLDB_INVALID_REGNUM, gdb_arm_d2, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d3", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d3, LLDB_INVALID_REGNUM, gdb_arm_d3, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d4", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d4, LLDB_INVALID_REGNUM, gdb_arm_d4, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d5", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d5, LLDB_INVALID_REGNUM, gdb_arm_d5, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d6", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d6, LLDB_INVALID_REGNUM, gdb_arm_d6, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d7", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d7, LLDB_INVALID_REGNUM, gdb_arm_d7, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d8", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d8, LLDB_INVALID_REGNUM, gdb_arm_d8, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d9", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d9, LLDB_INVALID_REGNUM, gdb_arm_d9, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d10", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d10, LLDB_INVALID_REGNUM, gdb_arm_d10, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d11", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d11, LLDB_INVALID_REGNUM, gdb_arm_d11, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d12", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d12, LLDB_INVALID_REGNUM, gdb_arm_d12, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d13", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d13, LLDB_INVALID_REGNUM, gdb_arm_d13, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d14", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d14, LLDB_INVALID_REGNUM, gdb_arm_d14, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d15", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d15, LLDB_INVALID_REGNUM, gdb_arm_d15, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d16", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d16, LLDB_INVALID_REGNUM, gdb_arm_d16, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d17", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d17, LLDB_INVALID_REGNUM, gdb_arm_d17, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d18", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d18, LLDB_INVALID_REGNUM, gdb_arm_d18, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d19", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d19, LLDB_INVALID_REGNUM, gdb_arm_d19, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d20", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d20, LLDB_INVALID_REGNUM, gdb_arm_d20, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d21", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d21, LLDB_INVALID_REGNUM, gdb_arm_d21, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d22", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d22, LLDB_INVALID_REGNUM, gdb_arm_d22, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d23", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d23, LLDB_INVALID_REGNUM, gdb_arm_d23, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d24", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d24, LLDB_INVALID_REGNUM, gdb_arm_d24, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d25", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d25, LLDB_INVALID_REGNUM, gdb_arm_d25, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d26", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d26, LLDB_INVALID_REGNUM, gdb_arm_d26, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d27", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d27, LLDB_INVALID_REGNUM, gdb_arm_d27, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d28", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d28, LLDB_INVALID_REGNUM, gdb_arm_d28, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d29", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d29, LLDB_INVALID_REGNUM, gdb_arm_d29, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d30", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d30, LLDB_INVALID_REGNUM, gdb_arm_d30, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "d31", NULL, 8, 0, eEncodingIEEE754 , eFormatFloat, { LLDB_INVALID_REGNUM, dwarf_d31, LLDB_INVALID_REGNUM, gdb_arm_d31, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r8_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r8_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r9_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r9_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r10_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r10_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r11_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r11_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r12_usr", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r12_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r13_usr", "sp_usr", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r14_usr", "lr_usr", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_usr, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r8_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r8_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r9_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r9_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r10_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r10_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r11_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r11_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r12_fiq", NULL, 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r12_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r13_fiq", "sp_fiq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r14_fiq", "lr_fiq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_fiq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r13_irq", "sp_irq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_irq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r14_irq", "lr_irq", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_irq, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r13_abt", "sp_abt", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_abt, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r14_abt", "lr_abt", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_abt, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r13_und", "sp_und", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_und, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r14_und", "lr_und", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_und, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r13_svc", "sp_svc", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r13_svc, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL},
{ "r14_svc", "lr_svc", 4, 0, eEncodingUint , eFormatHex, { LLDB_INVALID_REGNUM, dwarf_r14_svc, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM }, NULL, NULL}
};
static const uint32_t k_num_register_infos = llvm::array_lengthof(g_register_infos);
static bool g_register_info_names_constified = false;
const lldb_private::RegisterInfo *
ABIMacOSX_arm::GetRegisterInfoArray (uint32_t &count)
{
// Make the C-string names and alt_names for the register infos into const
// C-string values by having the ConstString unique the names in the global
// constant C-string pool.
if (!g_register_info_names_constified)
{
g_register_info_names_constified = true;
for (uint32_t i=0; i<k_num_register_infos; ++i)
{
if (g_register_infos[i].name)
g_register_infos[i].name = ConstString(g_register_infos[i].name).GetCString();
if (g_register_infos[i].alt_name)
g_register_infos[i].alt_name = ConstString(g_register_infos[i].alt_name).GetCString();
}
}
count = k_num_register_infos;
return g_register_infos;
}
size_t
ABIMacOSX_arm::GetRedZoneSize () const
{
return 0;
}
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
ABISP
ABIMacOSX_arm::CreateInstance (const ArchSpec &arch)
{
static ABISP g_abi_sp;
const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch();
const llvm::Triple::VendorType vendor_type = arch.GetTriple().getVendor();
if (vendor_type == llvm::Triple::Apple)
{
if ((arch_type == llvm::Triple::arm) ||
(arch_type == llvm::Triple::thumb))
{
if (!g_abi_sp)
g_abi_sp.reset (new ABIMacOSX_arm);
return g_abi_sp;
}
}
return ABISP();
}
bool
ABIMacOSX_arm::PrepareTrivialCall (Thread &thread,
addr_t sp,
addr_t function_addr,
addr_t return_addr,
llvm::ArrayRef<addr_t> args) const
{
RegisterContext *reg_ctx = thread.GetRegisterContext().get();
if (!reg_ctx)
return false;
const uint32_t pc_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
const uint32_t sp_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP);
const uint32_t ra_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA);
RegisterValue reg_value;
const char *reg_names[] = { "r0", "r1", "r2", "r3" };
llvm::ArrayRef<addr_t>::iterator ai = args.begin(), ae = args.end();
for (size_t i = 0; i < llvm::array_lengthof(reg_names); ++i)
{
if (ai == ae)
break;
reg_value.SetUInt32(*ai);
if (!reg_ctx->WriteRegister(reg_ctx->GetRegisterInfoByName(reg_names[i]), reg_value))
return false;
++ai;
}
if (ai != ae)
{
// Spill onto the stack
size_t num_stack_regs = ae - ai;
sp -= (num_stack_regs * 4);
// Keep the stack 8 byte aligned, not that we need to
sp &= ~(8ull-1ull);
// just using arg1 to get the right size
const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1);
addr_t arg_pos = sp;
for (; ai != ae; ++ai)
{
reg_value.SetUInt32(*ai);
if (reg_ctx->WriteRegisterValueToMemory(reg_info, arg_pos, reg_info->byte_size, reg_value).Fail())
return false;
arg_pos += reg_info->byte_size;
}
}
TargetSP target_sp (thread.CalculateTarget());
Address so_addr;
// Figure out if our return address is ARM or Thumb by using the
// Address::GetCallableLoadAddress(Target*) which will figure out the ARM
// thumb-ness and set the correct address bits for us.
so_addr.SetLoadAddress (return_addr, target_sp.get());
return_addr = so_addr.GetCallableLoadAddress (target_sp.get());
// Set "lr" to the return address
if (!reg_ctx->WriteRegisterFromUnsigned (ra_reg_num, return_addr))
return false;
// Set "sp" to the requested value
if (!reg_ctx->WriteRegisterFromUnsigned (sp_reg_num, sp))
return false;
// If bit zero or 1 is set, this must be a thumb function, no need to figure
// this out from the symbols.
so_addr.SetLoadAddress (function_addr, target_sp.get());
function_addr = so_addr.GetCallableLoadAddress (target_sp.get());
const RegisterInfo *cpsr_reg_info = reg_ctx->GetRegisterInfoByName("cpsr");
const uint32_t curr_cpsr = reg_ctx->ReadRegisterAsUnsigned(cpsr_reg_info, 0);
// Make a new CPSR and mask out any Thumb IT (if/then) bits
uint32_t new_cpsr = curr_cpsr & ~MASK_CPSR_IT_MASK;
// If bit zero or 1 is set, this must be thumb...
if (function_addr & 1ull)
new_cpsr |= MASK_CPSR_T; // Set T bit in CPSR
else
new_cpsr &= ~MASK_CPSR_T; // Clear T bit in CPSR
if (new_cpsr != curr_cpsr)
{
if (!reg_ctx->WriteRegisterFromUnsigned (cpsr_reg_info, new_cpsr))
return false;
}
function_addr &= ~1ull; // clear bit zero since the CPSR will take care of the mode for us
// Set "pc" to the address requested
if (!reg_ctx->WriteRegisterFromUnsigned (pc_reg_num, function_addr))
return false;
return true;
}
bool
ABIMacOSX_arm::GetArgumentValues (Thread &thread,
ValueList &values) const
{
uint32_t num_values = values.GetSize();
ExecutionContext exe_ctx (thread.shared_from_this());
// For now, assume that the types in the AST values come from the Target's
// scratch AST.
// Extract the register context so we can read arguments from registers
RegisterContext *reg_ctx = thread.GetRegisterContext().get();
if (!reg_ctx)
return false;
addr_t sp = 0;
for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx)
{
// We currently only support extracting values with Clang QualTypes.
// Do we care about others?
Value *value = values.GetValueAtIndex(value_idx);
if (!value)
return false;
ClangASTType clang_type = value->GetClangType();
if (clang_type)
{
bool is_signed = false;
size_t bit_width = 0;
if (clang_type.IsIntegerType (is_signed))
{
bit_width = clang_type.GetBitSize(&thread);
}
else if (clang_type.IsPointerOrReferenceType ())
{
bit_width = clang_type.GetBitSize(&thread);
}
else
{
// We only handle integer, pointer and reference types currently...
return false;
}
if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8))
{
if (value_idx < 4)
{
// Arguments 1-4 are in r0-r3...
const RegisterInfo *arg_reg_info = NULL;
// Search by generic ID first, then fall back to by name
uint32_t arg_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber (eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx);
if (arg_reg_num != LLDB_INVALID_REGNUM)
{
arg_reg_info = reg_ctx->GetRegisterInfoAtIndex(arg_reg_num);
}
else
{
switch (value_idx)
{
case 0: arg_reg_info = reg_ctx->GetRegisterInfoByName("r0"); break;
case 1: arg_reg_info = reg_ctx->GetRegisterInfoByName("r1"); break;
case 2: arg_reg_info = reg_ctx->GetRegisterInfoByName("r2"); break;
case 3: arg_reg_info = reg_ctx->GetRegisterInfoByName("r3"); break;
}
}
if (arg_reg_info)
{
RegisterValue reg_value;
if (reg_ctx->ReadRegister(arg_reg_info, reg_value))
{
if (is_signed)
reg_value.SignExtend(bit_width);
if (!reg_value.GetScalarValue(value->GetScalar()))
return false;
continue;
}
}
return false;
}
else
{
if (sp == 0)
{
// Read the stack pointer if it already hasn't been read
sp = reg_ctx->GetSP(0);
if (sp == 0)
return false;
}
// Arguments 5 on up are on the stack
const uint32_t arg_byte_size = (bit_width + (8-1)) / 8;
Error error;
if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(sp, arg_byte_size, is_signed, value->GetScalar(), error))
return false;
sp += arg_byte_size;
}
}
}
}
return true;
}
ValueObjectSP
ABIMacOSX_arm::GetReturnValueObjectImpl (Thread &thread,
lldb_private::ClangASTType &clang_type) const
{
Value value;
ValueObjectSP return_valobj_sp;
if (!clang_type)
return return_valobj_sp;
ClangASTContext* ast = clang_type.GetTypeSystem()->AsClangASTContext();
clang::ASTContext *ast_context = ast ? ast->getASTContext() : nullptr;
if (!ast_context)
return return_valobj_sp;
//value.SetContext (Value::eContextTypeClangType, clang_type.GetOpaqueQualType());
value.SetClangType (clang_type);
RegisterContext *reg_ctx = thread.GetRegisterContext().get();
if (!reg_ctx)
return return_valobj_sp;
bool is_signed;
// Get the pointer to the first stack argument so we have a place to start
// when reading data
const RegisterInfo *r0_reg_info = reg_ctx->GetRegisterInfoByName("r0", 0);
if (clang_type.IsIntegerType (is_signed))
{
size_t bit_width = clang_type.GetBitSize(&thread);
switch (bit_width)
{
default:
return return_valobj_sp;
case 64:
{
const RegisterInfo *r1_reg_info = reg_ctx->GetRegisterInfoByName("r1", 0);
uint64_t raw_value;
raw_value = reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(r1_reg_info, 0) & UINT32_MAX)) << 32;
if (is_signed)
value.GetScalar() = (int64_t)raw_value;
else
value.GetScalar() = (uint64_t)raw_value;
}
break;
case 32:
if (is_signed)
value.GetScalar() = (int32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX);
else
value.GetScalar() = (uint32_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX);
break;
case 16:
if (is_signed)
value.GetScalar() = (int16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX);
else
value.GetScalar() = (uint16_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT16_MAX);
break;
case 8:
if (is_signed)
value.GetScalar() = (int8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX);
else
value.GetScalar() = (uint8_t)(reg_ctx->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT8_MAX);
break;
}
}
else if (clang_type.IsPointerType ())
{
uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r0_reg_info, 0) & UINT32_MAX;
value.GetScalar() = ptr;
}
else
{
// not handled yet
return return_valobj_sp;
}
// If we get here, we have a valid Value, so make our ValueObject out of it:
return_valobj_sp = ValueObjectConstResult::Create(thread.GetStackFrameAtIndex(0).get(),
value,
ConstString(""));
return return_valobj_sp;
}
Error
ABIMacOSX_arm::SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value_sp)
{
Error error;
if (!new_value_sp)
{
error.SetErrorString("Empty value object for return value.");
return error;
}
ClangASTType clang_type = new_value_sp->GetClangType();
if (!clang_type)
{
error.SetErrorString ("Null clang type for return value.");
return error;
}
Thread *thread = frame_sp->GetThread().get();
bool is_signed;
uint32_t count;
bool is_complex;
RegisterContext *reg_ctx = thread->GetRegisterContext().get();
bool set_it_simple = false;
if (clang_type.IsIntegerType (is_signed) || clang_type.IsPointerType())
{
DataExtractor data;
Error data_error;
size_t num_bytes = new_value_sp->GetData(data, data_error);
if (data_error.Fail())
{
error.SetErrorStringWithFormat("Couldn't convert return value to raw data: %s", data_error.AsCString());
return error;
}
lldb::offset_t offset = 0;
if (num_bytes <= 8)
{
const RegisterInfo *r0_info = reg_ctx->GetRegisterInfoByName("r0", 0);
if (num_bytes <= 4)
{
uint32_t raw_value = data.GetMaxU32(&offset, num_bytes);
if (reg_ctx->WriteRegisterFromUnsigned (r0_info, raw_value))
set_it_simple = true;
}
else
{
uint32_t raw_value = data.GetMaxU32(&offset, 4);
if (reg_ctx->WriteRegisterFromUnsigned (r0_info, raw_value))
{
const RegisterInfo *r1_info = reg_ctx->GetRegisterInfoByName("r1", 0);
uint32_t raw_value = data.GetMaxU32(&offset, num_bytes - offset);
if (reg_ctx->WriteRegisterFromUnsigned (r1_info, raw_value))
set_it_simple = true;
}
}
}
else
{
error.SetErrorString("We don't support returning longer than 64 bit integer values at present.");
}
}
else if (clang_type.IsFloatingPointType (count, is_complex))
{
if (is_complex)
error.SetErrorString ("We don't support returning complex values at present");
else
error.SetErrorString ("We don't support returning float values at present");
}
if (!set_it_simple)
error.SetErrorString ("We only support setting simple integer return types at present.");
return error;
}
bool
ABIMacOSX_arm::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
uint32_t lr_reg_num = dwarf_lr;
uint32_t sp_reg_num = dwarf_sp;
uint32_t pc_reg_num = dwarf_pc;
UnwindPlan::RowSP row(new UnwindPlan::Row);
// Our Call Frame Address is the stack pointer value
row->GetCFAValue().SetIsRegisterPlusOffset (sp_reg_num, 0);
// The previous PC is in the LR
row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true);
unwind_plan.AppendRow (row);
// All other registers are the same.
unwind_plan.SetSourceName ("arm at-func-entry default");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
return true;
}
bool
ABIMacOSX_arm::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear ();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
uint32_t fp_reg_num = dwarf_r7; // apple uses r7 for all frames. Normal arm uses r11
uint32_t pc_reg_num = dwarf_pc;
UnwindPlan::RowSP row(new UnwindPlan::Row);
const int32_t ptr_size = 4;
row->GetCFAValue().SetIsRegisterPlusOffset (fp_reg_num, 2 * ptr_size);
row->SetOffset (0);
row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
unwind_plan.AppendRow (row);
unwind_plan.SetSourceName ("arm-apple-ios default unwind plan");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
return true;
}
// cf. "ARMv6 Function Calling Conventions"
// https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARMv6FunctionCallingConventions.html
// and "ARMv7 Function Calling Conventions"
// https://developer.apple.com/library/ios/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARMv7FunctionCallingConventions.html
// ARMv7 on iOS general purpose reg rules:
// r0-r3 not preserved (used for argument passing)
// r4-r6 preserved
// r7 preserved (frame pointer)
// r8 preserved
// r9 not preserved (usable as volatile scratch register with iOS 3.x and later)
// r10-r11 preserved
// r12 not presrved
// r13 preserved (stack pointer)
// r14 not preserved (link register)
// r15 preserved (pc)
// cpsr not preserved (different rules for different bits)
// ARMv7 on iOS floating point rules:
// d0-d7 not preserved (aka s0-s15, q0-q3)
// d8-d15 preserved (aka s16-s31, q4-q7)
// d16-d31 not preserved (aka q8-q15)
bool
ABIMacOSX_arm::RegisterIsVolatile (const RegisterInfo *reg_info)
{
if (reg_info)
{
// Volatile registers are: r0, r1, r2, r3, r9, r12, r13 (aka sp)
const char *name = reg_info->name;
if (name[0] == 'r')
{
switch (name[1])
{
case '0': return name[2] == '\0'; // r0
case '1':
switch (name[2])
{
case '\0':
return true; // r1
case '2':
case '3':
return name[3] == '\0'; // r12, r13 (sp)
default:
break;
}
break;
case '2': return name[2] == '\0'; // r2
case '3': return name[2] == '\0'; // r3
case '9': return name[2] == '\0'; // r9 (apple-ios only...)
break;
}
}
else if (name[0] == 'd')
{
switch (name[1])
{
case '0':
return name[2] == '\0'; // d0 is volatile
case '1':
switch (name[2])
{
case '\0':
return true; // d1 is volatile
case '6':
case '7':
case '8':
case '9':
return name[3] == '\0'; // d16 - d19 are volatile
default:
break;
}
break;
case '2':
switch (name[2])
{
case '\0':
return true; // d2 is volatile
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return name[3] == '\0'; // d20 - d29 are volatile
default:
break;
}
break;
case '3':
switch (name[2])
{
case '\0':
return true; // d3 is volatile
case '0':
case '1':
return name[3] == '\0'; // d30 - d31 are volatile
default:
break;
}
case '4':
case '5':
case '6':
case '7':
return name[2] == '\0'; // d4 - d7 are volatile
default:
break;
}
}
else if (name[0] == 's')
{
switch (name[1])
{
case '0':
return name[2] == '\0'; // s0 is volatile
case '1':
switch (name[2])
{
case '\0':
return true; // s1 is volatile
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
return name[3] == '\0'; // s10 - s15 are volatile
default:
break;
}
break;
case '2':
switch (name[2])
{
case '\0':
return true; // s2 is volatile
default:
break;
}
break;
case '3':
switch (name[2])
{
case '\0':
return true; // s3 is volatile
default:
break;
}
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return name[2] == '\0'; // s4 - s9 are volatile
default:
break;
}
}
else if (name[0] == 'q')
{
switch (name[1])
{
case '1':
switch (name[2])
{
case '\0':
return true; // q1 is volatile
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
return true; // q10-q15 are volatile
default:
break;
};
case '0':
case '2':
case '3':
return name[2] == '\0'; // q0-q3 are volatile
case '8':
case '9':
return name[2] == '\0'; // q8-q9 are volatile
default:
break;
}
}
else if (name[0] == 's' && name[1] == 'p' && name[2] == '\0')
return true;
}
return false;
}
void
ABIMacOSX_arm::Initialize()
{
PluginManager::RegisterPlugin (GetPluginNameStatic(),
"Mac OS X ABI for arm targets",
CreateInstance);
}
void
ABIMacOSX_arm::Terminate()
{
PluginManager::UnregisterPlugin (CreateInstance);
}
lldb_private::ConstString
ABIMacOSX_arm::GetPluginNameStatic()
{
static ConstString g_name("macosx-arm");
return g_name;
}
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
lldb_private::ConstString
ABIMacOSX_arm::GetPluginName()
{
return GetPluginNameStatic();
}
uint32_t
ABIMacOSX_arm::GetPluginVersion()
{
return 1;
}
|
