Outline ![]()
Files ![]()
loading...
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
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
// SPDX-License-Identifier: GPL-2.0-or-later
/***************************************************************************
* Copyright (C) 2015 by David Ung *
* *
* Copyright (C) 2018 by Liviu Ionescu *
* <ilg@livius.net> *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <helper/replacements.h>
#include "armv8.h"
#include "arm_disassembler.h"
#include "register.h"
#include <helper/binarybuffer.h>
#include <helper/command.h>
#include <helper/nvp.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "armv8_opcodes.h"
#include "target.h"
#include "target_type.h"
#include "semihosting_common.h"
static const char * const armv8_state_strings[] = {
"AArch32", "Thumb", "Jazelle", "ThumbEE", "AArch64",
};
static const struct {
const char *name;
unsigned psr;
} armv8_mode_data[] = {
{
.name = "USR",
.psr = ARM_MODE_USR,
},
{
.name = "FIQ",
.psr = ARM_MODE_FIQ,
},
{
.name = "IRQ",
.psr = ARM_MODE_IRQ,
},
{
.name = "SVC",
.psr = ARM_MODE_SVC,
},
{
.name = "MON",
.psr = ARM_MODE_MON,
},
{
.name = "ABT",
.psr = ARM_MODE_ABT,
},
{
.name = "HYP",
.psr = ARM_MODE_HYP,
},
{
.name = "UND",
.psr = ARM_MODE_UND,
},
{
.name = "SYS",
.psr = ARM_MODE_SYS,
},
{
.name = "EL0T",
.psr = ARMV8_64_EL0T,
},
{
.name = "EL1T",
.psr = ARMV8_64_EL1T,
},
{
.name = "EL1H",
.psr = ARMV8_64_EL1H,
},
{
.name = "EL2T",
.psr = ARMV8_64_EL2T,
},
{
.name = "EL2H",
.psr = ARMV8_64_EL2H,
},
{
.name = "EL3T",
.psr = ARMV8_64_EL3T,
},
{
.name = "EL3H",
.psr = ARMV8_64_EL3H,
},
};
/** Map PSR mode bits to the name of an ARM processor operating mode. */
const char *armv8_mode_name(unsigned psr_mode)
{
for (unsigned i = 0; i < ARRAY_SIZE(armv8_mode_data); i++) {
if (armv8_mode_data[i].psr == psr_mode)
return armv8_mode_data[i].name;
}
LOG_ERROR("unrecognized psr mode: %#02x", psr_mode);
return "UNRECOGNIZED";
}
static uint8_t armv8_pa_size(uint32_t ps)
{
uint8_t ret = 0;
switch (ps) {
case 0:
ret = 32;
break;
case 1:
ret = 36;
break;
case 2:
ret = 40;
break;
case 3:
ret = 42;
break;
case 4:
ret = 44;
break;
case 5:
ret = 48;
break;
default:
LOG_INFO("Unknown physical address size");
break;
}
return ret;
}
static __attribute__((unused)) int armv8_read_ttbcr32(struct target *target)
{
struct armv8_common *armv8 = target_to_armv8(target);
struct arm_dpm *dpm = armv8->arm.dpm;
uint32_t ttbcr, ttbcr_n;
int retval = dpm->prepare(dpm);
if (retval != ERROR_OK)
goto done;
/* MRC p15,0,<Rt>,c2,c0,2 ; Read CP15 Translation Table Base Control Register*/
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_MRC(15, 0, 0, 2, 0, 2),
&ttbcr);
if (retval != ERROR_OK)
goto done;
LOG_DEBUG("ttbcr %" PRIx32, ttbcr);
ttbcr_n = ttbcr & 0x7;
armv8->armv8_mmu.ttbcr = ttbcr;
/*
* ARM Architecture Reference Manual (ARMv7-A and ARMv7-R edition),
* document # ARM DDI 0406C
*/
armv8->armv8_mmu.ttbr_range[0] = 0xffffffff >> ttbcr_n;
armv8->armv8_mmu.ttbr_range[1] = 0xffffffff;
armv8->armv8_mmu.ttbr_mask[0] = 0xffffffff << (14 - ttbcr_n);
armv8->armv8_mmu.ttbr_mask[1] = 0xffffffff << 14;
LOG_DEBUG("ttbr1 %s, ttbr0_mask %" PRIx32 " ttbr1_mask %" PRIx32,
(ttbcr_n != 0) ? "used" : "not used",
armv8->armv8_mmu.ttbr_mask[0],
armv8->armv8_mmu.ttbr_mask[1]);
done:
dpm->finish(dpm);
return retval;
}
static int armv8_read_ttbcr(struct target *target)
{
struct armv8_common *armv8 = target_to_armv8(target);
struct arm_dpm *dpm = armv8->arm.dpm;
struct arm *arm = &armv8->arm;
uint32_t ttbcr;
uint64_t ttbcr_64;
int retval = dpm->prepare(dpm);
if (retval != ERROR_OK)
goto done;
/* clear ttrr1_used and ttbr0_mask */
memset(&armv8->armv8_mmu.ttbr1_used, 0, sizeof(armv8->armv8_mmu.ttbr1_used));
memset(&armv8->armv8_mmu.ttbr0_mask, 0, sizeof(armv8->armv8_mmu.ttbr0_mask));
switch (armv8_curel_from_core_mode(arm->core_mode)) {
case SYSTEM_CUREL_EL3:
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS(SYSTEM_TCR_EL3, 0),
&ttbcr);
retval += dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_TTBR0_EL3, 0),
&armv8->ttbr_base);
if (retval != ERROR_OK)
goto done;
armv8->va_size = 64 - (ttbcr & 0x3F);
armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7);
armv8->page_size = (ttbcr >> 14) & 3;
break;
case SYSTEM_CUREL_EL2:
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS(SYSTEM_TCR_EL2, 0),
&ttbcr);
retval += dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_TTBR0_EL2, 0),
&armv8->ttbr_base);
if (retval != ERROR_OK)
goto done;
armv8->va_size = 64 - (ttbcr & 0x3F);
armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7);
armv8->page_size = (ttbcr >> 14) & 3;
break;
case SYSTEM_CUREL_EL0:
armv8_dpm_modeswitch(dpm, ARMV8_64_EL1H);
/* fall through */
case SYSTEM_CUREL_EL1:
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_TCR_EL1, 0),
&ttbcr_64);
armv8->va_size = 64 - (ttbcr_64 & 0x3F);
armv8->pa_size = armv8_pa_size((ttbcr_64 >> 32) & 7);
armv8->page_size = (ttbcr_64 >> 14) & 3;
armv8->armv8_mmu.ttbr1_used = (((ttbcr_64 >> 16) & 0x3F) != 0) ? 1 : 0;
armv8->armv8_mmu.ttbr0_mask = 0x0000FFFFFFFFFFFFULL;
retval += dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_TTBR0_EL1 | (armv8->armv8_mmu.ttbr1_used), 0),
&armv8->ttbr_base);
if (retval != ERROR_OK)
goto done;
break;
default:
LOG_ERROR("unknown core state");
retval = ERROR_FAIL;
break;
}
if (retval != ERROR_OK)
goto done;
if (armv8->armv8_mmu.ttbr1_used == 1)
LOG_INFO("TTBR0 access above %" PRIx64, (uint64_t)(armv8->armv8_mmu.ttbr0_mask));
done:
armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
dpm->finish(dpm);
return retval;
}
static int armv8_get_pauth_mask(struct armv8_common *armv8, uint64_t *mask)
{
struct arm *arm = &armv8->arm;
int retval = ERROR_OK;
if (armv8->va_size == 0)
retval = armv8_read_ttbcr(arm->target);
if (retval != ERROR_OK)
return retval;
*mask = ~(((uint64_t)1 << armv8->va_size) - 1);
return retval;
}
static int armv8_read_reg(struct armv8_common *armv8, int regnum, uint64_t *regval)
{
struct arm_dpm *dpm = &armv8->dpm;
unsigned int curel = armv8_curel_from_core_mode(dpm->arm->core_mode);
int retval;
uint32_t value;
uint64_t value_64;
if (!regval)
return ERROR_FAIL;
switch (regnum) {
case 0 ... 30:
retval = dpm->instr_read_data_dcc_64(dpm,
ARMV8_MSR_GP(SYSTEM_DBG_DBGDTR_EL0, regnum), &value_64);
break;
case ARMV8_SP:
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MOVFSP_64(0), &value_64);
break;
case ARMV8_PC:
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS_DLR(0), &value_64);
break;
case ARMV8_XPSR:
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS_DSPSR(0), &value);
value_64 = value;
break;
case ARMV8_FPSR:
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS_FPSR(0), &value);
value_64 = value;
break;
case ARMV8_FPCR:
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS_FPCR(0), &value);
value_64 = value;
break;
case ARMV8_ELR_EL1:
if (curel < SYSTEM_CUREL_EL1) {
LOG_DEBUG("ELR_EL1 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_ELR_EL1, 0), &value_64);
break;
case ARMV8_ELR_EL2:
if (curel < SYSTEM_CUREL_EL2) {
LOG_DEBUG("ELR_EL2 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_ELR_EL2, 0), &value_64);
break;
case ARMV8_ELR_EL3:
if (curel < SYSTEM_CUREL_EL3) {
LOG_DEBUG("ELR_EL3 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_ELR_EL3, 0), &value_64);
break;
case ARMV8_ESR_EL1:
if (curel < SYSTEM_CUREL_EL1) {
LOG_DEBUG("ESR_EL1 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_ESR_EL1, 0), &value_64);
break;
case ARMV8_ESR_EL2:
if (curel < SYSTEM_CUREL_EL2) {
LOG_DEBUG("ESR_EL2 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_ESR_EL2, 0), &value_64);
break;
case ARMV8_ESR_EL3:
if (curel < SYSTEM_CUREL_EL3) {
LOG_DEBUG("ESR_EL3 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_ESR_EL3, 0), &value_64);
break;
case ARMV8_SPSR_EL1:
if (curel < SYSTEM_CUREL_EL1) {
LOG_DEBUG("SPSR_EL1 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_SPSR_EL1, 0), &value_64);
break;
case ARMV8_SPSR_EL2:
if (curel < SYSTEM_CUREL_EL2) {
LOG_DEBUG("SPSR_EL2 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_SPSR_EL2, 0), &value_64);
break;
case ARMV8_SPSR_EL3:
if (curel < SYSTEM_CUREL_EL3) {
LOG_DEBUG("SPSR_EL3 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MRS(SYSTEM_SPSR_EL3, 0), &value_64);
break;
case ARMV8_PAUTH_CMASK:
case ARMV8_PAUTH_DMASK:
retval = armv8_get_pauth_mask(armv8, &value_64);
break;
default:
retval = ERROR_FAIL;
break;
}
if (retval == ERROR_OK)
*regval = value_64;
return retval;
}
static int armv8_read_reg_simdfp_aarch64(struct armv8_common *armv8, int regnum, uint64_t *lvalue, uint64_t *hvalue)
{
int retval = ERROR_FAIL;
struct arm_dpm *dpm = &armv8->dpm;
switch (regnum) {
case ARMV8_V0 ... ARMV8_V31:
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MOV_GPR_VFP(0, (regnum - ARMV8_V0), 1), hvalue);
if (retval != ERROR_OK)
return retval;
retval = dpm->instr_read_data_r0_64(dpm,
ARMV8_MOV_GPR_VFP(0, (regnum - ARMV8_V0), 0), lvalue);
break;
default:
retval = ERROR_FAIL;
break;
}
return retval;
}
static int armv8_write_reg(struct armv8_common *armv8, int regnum, uint64_t value_64)
{
struct arm_dpm *dpm = &armv8->dpm;
unsigned int curel = armv8_curel_from_core_mode(dpm->arm->core_mode);
int retval;
uint32_t value;
switch (regnum) {
case 0 ... 30:
retval = dpm->instr_write_data_dcc_64(dpm,
ARMV8_MRS(SYSTEM_DBG_DBGDTR_EL0, regnum),
value_64);
break;
case ARMV8_SP:
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MOVTSP_64(0),
value_64);
break;
case ARMV8_PC:
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_DLR(0),
value_64);
break;
case ARMV8_XPSR:
value = value_64;
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MSR_DSPSR(0),
value);
break;
case ARMV8_FPSR:
value = value_64;
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MSR_FPSR(0),
value);
break;
case ARMV8_FPCR:
value = value_64;
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MSR_FPCR(0),
value);
break;
/* registers clobbered by taking exception in debug state */
case ARMV8_ELR_EL1:
if (curel < SYSTEM_CUREL_EL1) {
LOG_DEBUG("ELR_EL1 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_ELR_EL1, 0), value_64);
break;
case ARMV8_ELR_EL2:
if (curel < SYSTEM_CUREL_EL2) {
LOG_DEBUG("ELR_EL2 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_ELR_EL2, 0), value_64);
break;
case ARMV8_ELR_EL3:
if (curel < SYSTEM_CUREL_EL3) {
LOG_DEBUG("ELR_EL3 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_ELR_EL3, 0), value_64);
break;
case ARMV8_ESR_EL1:
if (curel < SYSTEM_CUREL_EL1) {
LOG_DEBUG("ESR_EL1 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_ESR_EL1, 0), value_64);
break;
case ARMV8_ESR_EL2:
if (curel < SYSTEM_CUREL_EL2) {
LOG_DEBUG("ESR_EL2 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_ESR_EL2, 0), value_64);
break;
case ARMV8_ESR_EL3:
if (curel < SYSTEM_CUREL_EL3) {
LOG_DEBUG("ESR_EL3 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_ESR_EL3, 0), value_64);
break;
case ARMV8_SPSR_EL1:
if (curel < SYSTEM_CUREL_EL1) {
LOG_DEBUG("SPSR_EL1 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_SPSR_EL1, 0), value_64);
break;
case ARMV8_SPSR_EL2:
if (curel < SYSTEM_CUREL_EL2) {
LOG_DEBUG("SPSR_EL2 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_SPSR_EL2, 0), value_64);
break;
case ARMV8_SPSR_EL3:
if (curel < SYSTEM_CUREL_EL3) {
LOG_DEBUG("SPSR_EL3 not accessible in EL%u", curel);
retval = ERROR_FAIL;
break;
}
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MSR_GP(SYSTEM_SPSR_EL3, 0), value_64);
break;
default:
retval = ERROR_FAIL;
break;
}
return retval;
}
static int armv8_write_reg_simdfp_aarch64(struct armv8_common *armv8, int regnum, uint64_t lvalue, uint64_t hvalue)
{
int retval = ERROR_FAIL;
struct arm_dpm *dpm = &armv8->dpm;
switch (regnum) {
case ARMV8_V0 ... ARMV8_V31:
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MOV_VFP_GPR((regnum - ARMV8_V0), 0, 1), hvalue);
if (retval != ERROR_OK)
return retval;
retval = dpm->instr_write_data_r0_64(dpm,
ARMV8_MOV_VFP_GPR((regnum - ARMV8_V0), 0, 0), lvalue);
break;
default:
retval = ERROR_FAIL;
break;
}
return retval;
}
static int armv8_read_reg32(struct armv8_common *armv8, int regnum, uint64_t *regval)
{
struct arm_dpm *dpm = &armv8->dpm;
uint32_t value = 0;
int retval;
if (!regval)
return ERROR_FAIL;
switch (regnum) {
case ARMV8_R0 ... ARMV8_R14:
/* return via DCC: "MCR p14, 0, Rnum, c0, c5, 0" */
retval = dpm->instr_read_data_dcc(dpm,
ARMV4_5_MCR(14, 0, regnum, 0, 5, 0),
&value);
break;
case ARMV8_SP:
retval = dpm->instr_read_data_dcc(dpm,
ARMV4_5_MCR(14, 0, 13, 0, 5, 0),
&value);
break;
case ARMV8_PC:
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRC_DLR(0),
&value);
break;
case ARMV8_XPSR:
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRC_DSPSR(0),
&value);
break;
case ARMV8_ELR_EL1: /* mapped to LR_svc */
retval = dpm->instr_read_data_dcc(dpm,
ARMV4_5_MCR(14, 0, 14, 0, 5, 0),
&value);
break;
case ARMV8_ELR_EL2: /* mapped to ELR_hyp */
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS_T1(0, 14, 0, 1),
&value);
break;
case ARMV8_ELR_EL3: /* mapped to LR_mon */
retval = dpm->instr_read_data_dcc(dpm,
ARMV4_5_MCR(14, 0, 14, 0, 5, 0),
&value);
break;
case ARMV8_ESR_EL1: /* mapped to DFSR */
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_MRC(15, 0, 0, 5, 0, 0),
&value);
break;
case ARMV8_ESR_EL2: /* mapped to HSR */
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_MRC(15, 4, 0, 5, 2, 0),
&value);
break;
case ARMV8_ESR_EL3: /* no equivalent in aarch32 */
retval = ERROR_FAIL;
break;
case ARMV8_SPSR_EL1: /* mapped to SPSR_svc */
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS_XPSR_T1(1, 0),
&value);
break;
case ARMV8_SPSR_EL2: /* mapped to SPSR_hyp */
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS_XPSR_T1(1, 0),
&value);
break;
case ARMV8_SPSR_EL3: /* mapped to SPSR_mon */
retval = dpm->instr_read_data_r0(dpm,
ARMV8_MRS_XPSR_T1(1, 0),
&value);
break;
case ARMV8_FPSR:
/* "VMRS r0, FPSCR"; then return via DCC */
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_VMRS(0), &value);
break;
default:
retval = ERROR_FAIL;
break;
}
if (retval == ERROR_OK)
*regval = value;
return retval;
}
static int armv8_read_reg_simdfp_aarch32(struct armv8_common *armv8, int regnum, uint64_t *lvalue, uint64_t *hvalue)
{
int retval = ERROR_FAIL;
struct arm_dpm *dpm = &armv8->dpm;
struct reg *reg_r1 = dpm->arm->core_cache->reg_list + ARMV8_R1;
uint32_t value_r0 = 0, value_r1 = 0;
unsigned num = (regnum - ARMV8_V0) << 1;
switch (regnum) {
case ARMV8_V0 ... ARMV8_V15:
/* we are going to write R1, mark it dirty */
reg_r1->dirty = true;
/* move from double word register to r0:r1: "vmov r0, r1, vm"
* then read r0 via dcc
*/
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_VMOV(1, 1, 0, (num >> 4), (num & 0xf)),
&value_r0);
if (retval != ERROR_OK)
return retval;
/* read r1 via dcc */
retval = dpm->instr_read_data_dcc(dpm,
ARMV4_5_MCR(14, 0, 1, 0, 5, 0),
&value_r1);
if (retval != ERROR_OK)
return retval;
*lvalue = value_r1;
*lvalue = ((*lvalue) << 32) | value_r0;
num++;
/* repeat above steps for high 64 bits of V register */
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_VMOV(1, 1, 0, (num >> 4), (num & 0xf)),
&value_r0);
if (retval != ERROR_OK)
return retval;
retval = dpm->instr_read_data_dcc(dpm,
ARMV4_5_MCR(14, 0, 1, 0, 5, 0),
&value_r1);
if (retval != ERROR_OK)
return retval;
*hvalue = value_r1;
*hvalue = ((*hvalue) << 32) | value_r0;
break;
default:
retval = ERROR_FAIL;
break;
}
return retval;
}
static int armv8_write_reg32(struct armv8_common *armv8, int regnum, uint64_t value)
{
struct arm_dpm *dpm = &armv8->dpm;
int retval;
switch (regnum) {
case ARMV8_R0 ... ARMV8_R14:
/* load register from DCC: "MRC p14, 0, Rnum, c0, c5, 0" */
retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, regnum, 0, 5, 0), value);
break;
case ARMV8_SP:
retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, 13, 0, 5, 0), value);
break;
case ARMV8_PC:/* PC
* read r0 from DCC; then "MOV pc, r0" */
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MCR_DLR(0), value);
break;
case ARMV8_XPSR: /* CPSR */
/* read r0 from DCC, then "MCR r0, DSPSR" */
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MCR_DSPSR(0), value);
break;
case ARMV8_ELR_EL1: /* mapped to LR_svc */
retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, 14, 0, 5, 0),
value);
break;
case ARMV8_ELR_EL2: /* mapped to ELR_hyp */
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MSR_GP_T1(0, 14, 0, 1),
value);
break;
case ARMV8_ELR_EL3: /* mapped to LR_mon */
retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, 14, 0, 5, 0),
value);
break;
case ARMV8_ESR_EL1: /* mapped to DFSR */
retval = dpm->instr_write_data_r0(dpm,
ARMV4_5_MCR(15, 0, 0, 5, 0, 0),
value);
break;
case ARMV8_ESR_EL2: /* mapped to HSR */
retval = dpm->instr_write_data_r0(dpm,
ARMV4_5_MCR(15, 4, 0, 5, 2, 0),
value);
break;
case ARMV8_ESR_EL3: /* no equivalent in aarch32 */
retval = ERROR_FAIL;
break;
case ARMV8_SPSR_EL1: /* mapped to SPSR_svc */
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MSR_GP_XPSR_T1(1, 0, 15),
value);
break;
case ARMV8_SPSR_EL2: /* mapped to SPSR_hyp */
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MSR_GP_XPSR_T1(1, 0, 15),
value);
break;
case ARMV8_SPSR_EL3: /* mapped to SPSR_mon */
retval = dpm->instr_write_data_r0(dpm,
ARMV8_MSR_GP_XPSR_T1(1, 0, 15),
value);
break;
case ARMV8_FPSR:
/* move to r0 from DCC, then "VMSR FPSCR, r0" */
retval = dpm->instr_write_data_r0(dpm,
ARMV4_5_VMSR(0), value);
break;
default:
retval = ERROR_FAIL;
break;
}
return retval;
}
static int armv8_write_reg_simdfp_aarch32(struct armv8_common *armv8, int regnum, uint64_t lvalue, uint64_t hvalue)
{
int retval = ERROR_FAIL;
struct arm_dpm *dpm = &armv8->dpm;
struct reg *reg_r1 = dpm->arm->core_cache->reg_list + ARMV8_R1;
uint32_t value_r0 = 0, value_r1 = 0;
unsigned num = (regnum - ARMV8_V0) << 1;
switch (regnum) {
case ARMV8_V0 ... ARMV8_V15:
/* we are going to write R1, mark it dirty */
reg_r1->dirty = true;
value_r1 = lvalue >> 32;
value_r0 = lvalue & 0xFFFFFFFF;
/* write value_r1 to r1 via dcc */
retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, 1, 0, 5, 0),
value_r1);
if (retval != ERROR_OK)
return retval;
/* write value_r0 to r0 via dcc then,
* move to double word register from r0:r1: "vmov vm, r0, r1"
*/
retval = dpm->instr_write_data_r0(dpm,
ARMV4_5_VMOV(0, 1, 0, (num >> 4), (num & 0xf)),
value_r0);
if (retval != ERROR_OK)
return retval;
num++;
/* repeat above steps for high 64 bits of V register */
value_r1 = hvalue >> 32;
value_r0 = hvalue & 0xFFFFFFFF;
retval = dpm->instr_write_data_dcc(dpm,
ARMV4_5_MRC(14, 0, 1, 0, 5, 0),
value_r1);
if (retval != ERROR_OK)
return retval;
retval = dpm->instr_write_data_r0(dpm,
ARMV4_5_VMOV(0, 1, 0, (num >> 4), (num & 0xf)),
value_r0);
break;
default:
retval = ERROR_FAIL;
break;
}
return retval;
}
void armv8_select_reg_access(struct armv8_common *armv8, bool is_aarch64)
{
if (is_aarch64) {
armv8->read_reg_u64 = armv8_read_reg;
armv8->write_reg_u64 = armv8_write_reg;
armv8->read_reg_u128 = armv8_read_reg_simdfp_aarch64;
armv8->write_reg_u128 = armv8_write_reg_simdfp_aarch64;
} else {
armv8->read_reg_u64 = armv8_read_reg32;
armv8->write_reg_u64 = armv8_write_reg32;
armv8->read_reg_u128 = armv8_read_reg_simdfp_aarch32;
armv8->write_reg_u128 = armv8_write_reg_simdfp_aarch32;
}
}
/* retrieve core id cluster id */
int armv8_read_mpidr(struct armv8_common *armv8)
{
int retval = ERROR_FAIL;
struct arm *arm = &armv8->arm;
struct arm_dpm *dpm = armv8->arm.dpm;
uint32_t mpidr;
retval = dpm->prepare(dpm);
if (retval != ERROR_OK)
goto done;
/* check if we're in an unprivileged mode */
if (armv8_curel_from_core_mode(arm->core_mode) < SYSTEM_CUREL_EL1) {
retval = armv8_dpm_modeswitch(dpm, ARMV8_64_EL1H);
if (retval != ERROR_OK)
return retval;
}
retval = dpm->instr_read_data_r0(dpm, armv8_opcode(armv8, READ_REG_MPIDR), &mpidr);
if (retval != ERROR_OK)
goto done;
if (mpidr & 1U<<31) {
armv8->multi_processor_system = (mpidr >> 30) & 1;
armv8->cluster_id = (mpidr >> 8) & 0xf;
armv8->cpu_id = mpidr & 0x3;
LOG_INFO("%s cluster %x core %x %s", target_name(armv8->arm.target),
armv8->cluster_id,
armv8->cpu_id,
armv8->multi_processor_system == 0 ? "multi core" : "single core");
} else
LOG_ERROR("mpidr not in multiprocessor format");
done:
armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
dpm->finish(dpm);
return retval;
}
/**
* Configures host-side ARM records to reflect the specified CPSR.
* Later, code can use arm_reg_current() to map register numbers
* according to how they are exposed by this mode.
*/
void armv8_set_cpsr(struct arm *arm, uint32_t cpsr)
{
uint32_t mode = cpsr & 0x1F;
/* NOTE: this may be called very early, before the register
* cache is set up. We can't defend against many errors, in
* particular against CPSRs that aren't valid *here* ...
*/
if (arm->cpsr) {
buf_set_u32(arm->cpsr->value, 0, 32, cpsr);
arm->cpsr->valid = true;
arm->cpsr->dirty = false;
}
/* Older ARMs won't have the J bit */
enum arm_state state = 0xFF;
if ((cpsr & 0x10) != 0) {
/* Aarch32 state */
if (cpsr & (1 << 5)) { /* T */
if (cpsr & (1 << 24)) { /* J */
LOG_WARNING("ThumbEE -- incomplete support");
state = ARM_STATE_THUMB_EE;
} else
state = ARM_STATE_THUMB;
} else {
if (cpsr & (1 << 24)) { /* J */
LOG_ERROR("Jazelle state handling is BROKEN!");
state = ARM_STATE_JAZELLE;
} else
state = ARM_STATE_ARM;
}
} else {
/* Aarch64 state */
state = ARM_STATE_AARCH64;
}
arm->core_state = state;
arm->core_mode = mode;
LOG_DEBUG("set CPSR %#8.8x: %s mode, %s state", (unsigned) cpsr,
armv8_mode_name(arm->core_mode),
armv8_state_strings[arm->core_state]);
}
static void armv8_show_fault_registers32(struct armv8_common *armv8)
{
uint32_t dfsr, ifsr, dfar, ifar;
struct arm_dpm *dpm = armv8->arm.dpm;
int retval;
retval = dpm->prepare(dpm);
if (retval != ERROR_OK)
return;
/* ARMV4_5_MRC(cpnum, op1, r0, crn, crm, op2) */
/* c5/c0 - {data, instruction} fault status registers */
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_MRC(15, 0, 0, 5, 0, 0),
&dfsr);
if (retval != ERROR_OK)
goto done;
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_MRC(15, 0, 0, 5, 0, 1),
&ifsr);
if (retval != ERROR_OK)
goto done;
/* c6/c0 - {data, instruction} fault address registers */
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_MRC(15, 0, 0, 6, 0, 0),
&dfar);
if (retval != ERROR_OK)
goto done;
retval = dpm->instr_read_data_r0(dpm,
ARMV4_5_MRC(15, 0, 0, 6, 0, 2),
&ifar);
if (retval != ERROR_OK)
goto done;
LOG_USER("Data fault registers DFSR: %8.8" PRIx32
", DFAR: %8.8" PRIx32, dfsr, dfar);
LOG_USER("Instruction fault registers IFSR: %8.8" PRIx32
", IFAR: %8.8" PRIx32, ifsr, ifar);
done:
/* (void) */ dpm->finish(dpm);
}
static __attribute__((unused)) void armv8_show_fault_registers(struct target *target)
{
struct armv8_common *armv8 = target_to_armv8(target);
if (armv8->arm.core_state != ARM_STATE_AARCH64)
armv8_show_fault_registers32(armv8);
}
/* method adapted to cortex A : reused arm v4 v5 method*/
int armv8_mmu_translate_va(struct target *target, target_addr_t va, target_addr_t *val)
{
return ERROR_OK;
}
static void armv8_decode_cacheability(int attr)
{
if (attr == 0) {
LOG_USER_N("UNPREDICTABLE");
return;
}
if (attr == 4) {
LOG_USER_N("Non-cacheable");
return;
}
switch (attr & 0xC) {
case 0:
LOG_USER_N("Write-Through Transient");
break;
case 0x4:
LOG_USER_N("Write-Back Transient");
break;
case 0x8:
LOG_USER_N("Write-Through Non-transient");
break;
case 0xC:
LOG_USER_N("Write-Back Non-transient");
break;
}
if (attr & 2)
LOG_USER_N(" Read-Allocate");
else
LOG_USER_N(" No-Read Allocate");
if (attr & 1)
LOG_USER_N(" Write-Allocate");
else
LOG_USER_N(" No-Write Allocate");
}
static void armv8_decode_memory_attr(int attr)
{
if (attr == 0x40) {
LOG_USER("Normal Memory, Inner Non-cacheable, "
"Outer Non-cacheable, XS=0");
} else if (attr == 0xA0) {
LOG_USER("Normal Memory, Inner Write-through Cacheable, "
"Outer Write-through Cacheable, Read-Allocate, "
"No-Write Allocate, Non-transient, XS=0");
} else if (attr == 0xF0) {
LOG_USER("Tagged Normal Memory, Inner Write-Back, "
"Outer Write-Back, Read-Allocate, Write-Allocate, "
"Non-transient");
} else if ((attr & 0xF0) == 0) {
switch (attr & 0xC) {
case 0:
LOG_USER_N("Device-nGnRnE Memory");
break;
case 0x4:
LOG_USER_N("Device-nGnRE Memory");
break;
case 0x8:
LOG_USER_N("Device-nGRE Memory");
break;
case 0xC:
LOG_USER_N("Device-GRE Memory");
break;
}
if (attr & 1)
LOG_USER(", XS=0");
else
LOG_USER_N("\n");
} else {
LOG_USER_N("Normal Memory, Inner ");
armv8_decode_cacheability(attr & 0xF);
LOG_USER_N(", Outer ");
armv8_decode_cacheability(attr >> 4);
LOG_USER_N("\n");
}
}
/* V8 method VA TO PA */
int armv8_mmu_translate_va_pa(struct target *target, target_addr_t va,
target_addr_t *val, int meminfo)
{
struct armv8_common *armv8 = target_to_armv8(target);
struct arm *arm = target_to_arm(target);
struct arm_dpm *dpm = &armv8->dpm;
enum arm_mode target_mode = ARM_MODE_ANY;
uint32_t retval;
uint32_t instr = 0;
uint64_t par;
static const char * const shared_name[] = {
"Non-", "UNDEFINED ", "Outer ", "Inner "
};
static const char * const secure_name[] = {
"Secure", "Not Secure"
};
if (target->state != TARGET_HALTED) {
LOG_TARGET_ERROR(target, "not halted");
return ERROR_TARGET_NOT_HALTED;
}
retval = dpm->prepare(dpm);
if (retval != ERROR_OK)
return retval;
switch (armv8_curel_from_core_mode(arm->core_mode)) {
case SYSTEM_CUREL_EL0:
instr = ARMV8_SYS(SYSTEM_ATS12E0R, 0);
/* can only execute instruction at EL2 */
target_mode = ARMV8_64_EL2H;
break;
case SYSTEM_CUREL_EL1:
instr = ARMV8_SYS(SYSTEM_ATS12E1R, 0);
/* can only execute instruction at EL2 */
target_mode = ARMV8_64_EL2H;
break;
case SYSTEM_CUREL_EL2:
instr = ARMV8_SYS(SYSTEM_ATS1E2R, 0);
break;
case SYSTEM_CUREL_EL3:
instr = ARMV8_SYS(SYSTEM_ATS1E3R, 0);
break;
default:
break;
};
if (target_mode != ARM_MODE_ANY)
armv8_dpm_modeswitch(dpm, target_mode);
/* write VA to R0 and execute translation instruction */
retval = dpm->instr_write_data_r0_64(dpm, instr, (uint64_t)va);
/* read result from PAR_EL1 */
if (retval == ERROR_OK)
retval = dpm->instr_read_data_r0_64(dpm, ARMV8_MRS(SYSTEM_PAR_EL1, 0), &par);
/* switch back to saved PE mode */
if (target_mode != ARM_MODE_ANY)
armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
dpm->finish(dpm);
if (retval != ERROR_OK)
return retval;
if (par & 1) {
LOG_ERROR("Address translation failed at stage %i, FST=%x, PTW=%i",
((int)(par >> 9) & 1)+1, (int)(par >> 1) & 0x3f, (int)(par >> 8) & 1);
*val = 0;
retval = ERROR_FAIL;
} else {
*val = (par & 0xFFFFFFFFF000UL) | (va & 0xFFF);
if (meminfo) {
int SH = (par >> 7) & 3;
int NS = (par >> 9) & 1;
int ATTR = (par >> 56) & 0xFF;
LOG_USER("%sshareable, %s",
shared_name[SH], secure_name[NS]);
armv8_decode_memory_attr(ATTR);
}
}
return retval;
}
COMMAND_HANDLER(armv8_handle_exception_catch_command)
{
struct target *target = get_current_target(CMD_CTX);
struct armv8_common *armv8 = target_to_armv8(target);
uint32_t edeccr = 0;
unsigned int argp = 0;
int retval;
static const struct nvp nvp_ecatch_modes[] = {
{ .name = "off", .value = 0 },
{ .name = "nsec_el1", .value = (1 << 5) },
{ .name = "nsec_el2", .value = (2 << 5) },
{ .name = "nsec_el12", .value = (3 << 5) },
{ .name = "sec_el1", .value = (1 << 1) },
{ .name = "sec_el3", .value = (4 << 1) },
{ .name = "sec_el13", .value = (5 << 1) },
{ .name = NULL, .value = -1 },
};
const struct nvp *n;
if (CMD_ARGC == 0) {
const char *sec = NULL, *nsec = NULL;
retval = mem_ap_read_atomic_u32(armv8->debug_ap,
armv8->debug_base + CPUV8_DBG_ECCR, &edeccr);
if (retval != ERROR_OK)
return retval;
n = nvp_value2name(nvp_ecatch_modes, edeccr & 0x0f);
if (n->name)
sec = n->name;
n = nvp_value2name(nvp_ecatch_modes, edeccr & 0xf0);
if (n->name)
nsec = n->name;
if (!sec || !nsec) {
LOG_WARNING("Exception Catch: unknown exception catch configuration: EDECCR = %02" PRIx32, edeccr & 0xff);
return ERROR_FAIL;
}
command_print(CMD, "Exception Catch: Secure: %s, Non-Secure: %s", sec, nsec);
return ERROR_OK;
}
while (argp < CMD_ARGC) {
n = nvp_name2value(nvp_ecatch_modes, CMD_ARGV[argp]);
if (!n->name) {
LOG_ERROR("Unknown option: %s", CMD_ARGV[argp]);
return ERROR_FAIL;
}
LOG_DEBUG("found: %s", n->name);
edeccr |= n->value;
argp++;
}
retval = mem_ap_write_atomic_u32(armv8->debug_ap,
armv8->debug_base + CPUV8_DBG_ECCR, edeccr);
if (retval != ERROR_OK)
return retval;
return ERROR_OK;
}
COMMAND_HANDLER(armv8_pauth_command)
{
struct target *target = get_current_target(CMD_CTX);
struct armv8_common *armv8 = target_to_armv8(target);
return CALL_COMMAND_HANDLER(handle_command_parse_bool,
&armv8->enable_pauth,
"pauth feature");
}
int armv8_handle_cache_info_command(struct command_invocation *cmd,
struct armv8_cache_common *armv8_cache)
{
if (armv8_cache->info == -1) {
command_print(cmd, "cache not yet identified");
return ERROR_OK;
}
if (armv8_cache->display_cache_info)
armv8_cache->display_cache_info(cmd, armv8_cache);
return ERROR_OK;
}
static int armv8_setup_semihosting(struct target *target, int enable)
{
return ERROR_OK;
}
int armv8_init_arch_info(struct target *target, struct armv8_common *armv8)
{
struct arm *arm = &armv8->arm;
arm->arch_info = armv8;
target->arch_info = &armv8->arm;
arm->setup_semihosting = armv8_setup_semihosting;
/* target is useful in all function arm v4 5 compatible */
armv8->arm.target = target;
armv8->arm.common_magic = ARM_COMMON_MAGIC;
armv8->common_magic = ARMV8_COMMON_MAGIC;
armv8->armv8_mmu.armv8_cache.l2_cache = NULL;
armv8->armv8_mmu.armv8_cache.info = -1;
armv8->armv8_mmu.armv8_cache.flush_all_data_cache = NULL;
armv8->armv8_mmu.armv8_cache.display_cache_info = NULL;
return ERROR_OK;
}
static int armv8_aarch64_state(struct target *target)
{
struct arm *arm = target_to_arm(target);
if (arm->common_magic != ARM_COMMON_MAGIC) {
LOG_ERROR("BUG: called for a non-ARM target");
return ERROR_FAIL;
}
LOG_USER("%s halted in %s state due to %s, current mode: %s\n"
"cpsr: 0x%8.8" PRIx32 " pc: 0x%" PRIx64 "%s",
target_name(target),
armv8_state_strings[arm->core_state],
debug_reason_name(target),
armv8_mode_name(arm->core_mode),
buf_get_u32(arm->cpsr->value, 0, 32),
buf_get_u64(arm->pc->value, 0, 64),
(target->semihosting && target->semihosting->is_active) ? ", semihosting" : "");
return ERROR_OK;
}
int armv8_arch_state(struct target *target)
{
static const char * const state[] = {
"disabled", "enabled"
};
struct armv8_common *armv8 = target_to_armv8(target);
struct arm *arm = &armv8->arm;
if (armv8->common_magic != ARMV8_COMMON_MAGIC) {
LOG_ERROR("BUG: called for a non-Armv8 target");
return ERROR_COMMAND_SYNTAX_ERROR;
}
if (arm->core_state == ARM_STATE_AARCH64)
armv8_aarch64_state(target);
else
arm_arch_state(target);
LOG_USER("MMU: %s, D-Cache: %s, I-Cache: %s",
state[armv8->armv8_mmu.mmu_enabled],
state[armv8->armv8_mmu.armv8_cache.d_u_cache_enabled],
state[armv8->armv8_mmu.armv8_cache.i_cache_enabled]);
if (arm->core_mode == ARM_MODE_ABT)
armv8_show_fault_registers(target);
if (target->debug_reason == DBG_REASON_WATCHPOINT)
LOG_USER("Watchpoint triggered at " TARGET_ADDR_FMT, armv8->dpm.wp_addr);
return ERROR_OK;
}
static struct reg_data_type aarch64_vector_base_types[] = {
{REG_TYPE_IEEE_DOUBLE, "ieee_double", 0, {NULL} },
{REG_TYPE_UINT64, "uint64", 0, {NULL} },
{REG_TYPE_INT64, "int64", 0, {NULL} },
{REG_TYPE_IEEE_SINGLE, "ieee_single", 0, {NULL} },
{REG_TYPE_UINT32, "uint32", 0, {NULL} },
{REG_TYPE_INT32, "int32", 0, {NULL} },
{REG_TYPE_UINT16, "uint16", 0, {NULL} },
{REG_TYPE_INT16, "int16", 0, {NULL} },
{REG_TYPE_UINT8, "uint8", 0, {NULL} },
{REG_TYPE_INT8, "int8", 0, {NULL} },
{REG_TYPE_UINT128, "uint128", 0, {NULL} },
{REG_TYPE_INT128, "int128", 0, {NULL} }
};
static struct reg_data_type_vector aarch64_vector_types[] = {
{aarch64_vector_base_types + 0, 2},
{aarch64_vector_base_types + 1, 2},
{aarch64_vector_base_types + 2, 2},
{aarch64_vector_base_types + 3, 4},
{aarch64_vector_base_types + 4, 4},
{aarch64_vector_base_types + 5, 4},
{aarch64_vector_base_types + 6, 8},
{aarch64_vector_base_types + 7, 8},
{aarch64_vector_base_types + 8, 16},
{aarch64_vector_base_types + 9, 16},
{aarch64_vector_base_types + 10, 01},
{aarch64_vector_base_types + 11, 01},
};
static struct reg_data_type aarch64_fpu_vector[] = {
{REG_TYPE_ARCH_DEFINED, "v2d", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 0} },
{REG_TYPE_ARCH_DEFINED, "v2u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 1} },
{REG_TYPE_ARCH_DEFINED, "v2i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 2} },
{REG_TYPE_ARCH_DEFINED, "v4f", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 3} },
{REG_TYPE_ARCH_DEFINED, "v4u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 4} },
{REG_TYPE_ARCH_DEFINED, "v4i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 5} },
{REG_TYPE_ARCH_DEFINED, "v8u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 6} },
{REG_TYPE_ARCH_DEFINED, "v8i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 7} },
{REG_TYPE_ARCH_DEFINED, "v16u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 8} },
{REG_TYPE_ARCH_DEFINED, "v16i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 9} },
{REG_TYPE_ARCH_DEFINED, "v1u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 10} },
{REG_TYPE_ARCH_DEFINED, "v1i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 11} },
};
static struct reg_data_type_union_field aarch64_union_fields_vnd[] = {
{"f", aarch64_fpu_vector + 0, aarch64_union_fields_vnd + 1},
{"u", aarch64_fpu_vector + 1, aarch64_union_fields_vnd + 2},
{"s", aarch64_fpu_vector + 2, NULL},
};
static struct reg_data_type_union_field aarch64_union_fields_vns[] = {
{"f", aarch64_fpu_vector + 3, aarch64_union_fields_vns + 1},
{"u", aarch64_fpu_vector + 4, aarch64_union_fields_vns + 2},
{"s", aarch64_fpu_vector + 5, NULL},
};
static struct reg_data_type_union_field aarch64_union_fields_vnh[] = {
{"u", aarch64_fpu_vector + 6, aarch64_union_fields_vnh + 1},
{"s", aarch64_fpu_vector + 7, NULL},
};
static struct reg_data_type_union_field aarch64_union_fields_vnb[] = {
{"u", aarch64_fpu_vector + 8, aarch64_union_fields_vnb + 1},
{"s", aarch64_fpu_vector + 9, NULL},
};
static struct reg_data_type_union_field aarch64_union_fields_vnq[] = {
{"u", aarch64_fpu_vector + 10, aarch64_union_fields_vnq + 1},
{"s", aarch64_fpu_vector + 11, NULL},
};
static struct reg_data_type_union aarch64_union_types[] = {
{aarch64_union_fields_vnd},
{aarch64_union_fields_vns},
{aarch64_union_fields_vnh},
{aarch64_union_fields_vnb},
{aarch64_union_fields_vnq},
};
static struct reg_data_type aarch64_fpu_union[] = {
{REG_TYPE_ARCH_DEFINED, "vnd", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 0} },
{REG_TYPE_ARCH_DEFINED, "vns", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 1} },
{REG_TYPE_ARCH_DEFINED, "vnh", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 2} },
{REG_TYPE_ARCH_DEFINED, "vnb", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 3} },
{REG_TYPE_ARCH_DEFINED, "vnq", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 4} },
};
static struct reg_data_type_union_field aarch64v_union_fields[] = {
{"d", aarch64_fpu_union + 0, aarch64v_union_fields + 1},
{"s", aarch64_fpu_union + 1, aarch64v_union_fields + 2},
{"h", aarch64_fpu_union + 2, aarch64v_union_fields + 3},
{"b", aarch64_fpu_union + 3, aarch64v_union_fields + 4},
{"q", aarch64_fpu_union + 4, NULL},
};
static struct reg_data_type_union aarch64v_union[] = {
{aarch64v_union_fields}
};
static struct reg_data_type aarch64v[] = {
{REG_TYPE_ARCH_DEFINED, "aarch64v", REG_TYPE_CLASS_UNION,
{.reg_type_union = aarch64v_union} },
};
static struct reg_data_type_bitfield aarch64_cpsr_bits[] = {
{ 0, 0, REG_TYPE_UINT8 },
{ 2, 3, REG_TYPE_UINT8 },
{ 4, 4, REG_TYPE_UINT8 },
{ 6, 6, REG_TYPE_BOOL },
{ 7, 7, REG_TYPE_BOOL },
{ 8, 8, REG_TYPE_BOOL },
{ 9, 9, REG_TYPE_BOOL },
{ 20, 20, REG_TYPE_BOOL },
{ 21, 21, REG_TYPE_BOOL },
{ 28, 28, REG_TYPE_BOOL },
{ 29, 29, REG_TYPE_BOOL },
{ 30, 30, REG_TYPE_BOOL },
{ 31, 31, REG_TYPE_BOOL },
};
static struct reg_data_type_flags_field aarch64_cpsr_fields[] = {
{ "SP", aarch64_cpsr_bits + 0, aarch64_cpsr_fields + 1 },
{ "EL", aarch64_cpsr_bits + 1, aarch64_cpsr_fields + 2 },
{ "nRW", aarch64_cpsr_bits + 2, aarch64_cpsr_fields + 3 },
{ "F", aarch64_cpsr_bits + 3, aarch64_cpsr_fields + 4 },
{ "I", aarch64_cpsr_bits + 4, aarch64_cpsr_fields + 5 },
{ "A", aarch64_cpsr_bits + 5, aarch64_cpsr_fields + 6 },
{ "D", aarch64_cpsr_bits + 6, aarch64_cpsr_fields + 7 },
{ "IL", aarch64_cpsr_bits + 7, aarch64_cpsr_fields + 8 },
{ "SS", aarch64_cpsr_bits + 8, aarch64_cpsr_fields + 9 },
{ "V", aarch64_cpsr_bits + 9, aarch64_cpsr_fields + 10 },
{ "C", aarch64_cpsr_bits + 10, aarch64_cpsr_fields + 11 },
{ "Z", aarch64_cpsr_bits + 11, aarch64_cpsr_fields + 12 },
{ "N", aarch64_cpsr_bits + 12, NULL }
};
static struct reg_data_type_flags aarch64_cpsr_flags[] = {
{ 4, aarch64_cpsr_fields }
};
static struct reg_data_type aarch64_flags_cpsr[] = {
{REG_TYPE_ARCH_DEFINED, "cpsr_flags", REG_TYPE_CLASS_FLAGS,
{.reg_type_flags = aarch64_cpsr_flags} },
};
static const struct {
unsigned id;
const char *name;
unsigned bits;
enum arm_mode mode;
enum reg_type type;
const char *group;
const char *feature;
struct reg_data_type *data_type;
} armv8_regs[] = {
{ ARMV8_R0, "x0", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R1, "x1", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R2, "x2", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R3, "x3", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R4, "x4", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R5, "x5", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R6, "x6", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R7, "x7", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R8, "x8", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R9, "x9", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R10, "x10", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R11, "x11", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R12, "x12", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R13, "x13", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R14, "x14", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R15, "x15", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R16, "x16", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R17, "x17", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R18, "x18", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R19, "x19", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R20, "x20", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R21, "x21", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R22, "x22", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R23, "x23", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R24, "x24", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R25, "x25", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R26, "x26", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R27, "x27", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R28, "x28", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R29, "x29", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_R30, "x30", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_SP, "sp", 64, ARM_MODE_ANY, REG_TYPE_DATA_PTR, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_PC, "pc", 64, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.aarch64.core", NULL},
{ ARMV8_XPSR, "cpsr", 32, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED,
"general", "org.gnu.gdb.aarch64.core", aarch64_flags_cpsr},
{ ARMV8_V0, "v0", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V1, "v1", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V2, "v2", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V3, "v3", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V4, "v4", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V5, "v5", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V6, "v6", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V7, "v7", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V8, "v8", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V9, "v9", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V10, "v10", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V11, "v11", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V12, "v12", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V13, "v13", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V14, "v14", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V15, "v15", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V16, "v16", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V17, "v17", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V18, "v18", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V19, "v19", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V20, "v20", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V21, "v21", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V22, "v22", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V23, "v23", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V24, "v24", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V25, "v25", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V26, "v26", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V27, "v27", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V28, "v28", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V29, "v29", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V30, "v30", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_V31, "v31", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
{ ARMV8_FPSR, "fpsr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "simdfp", "org.gnu.gdb.aarch64.fpu", NULL},
{ ARMV8_FPCR, "fpcr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "simdfp", "org.gnu.gdb.aarch64.fpu", NULL},
{ ARMV8_ELR_EL1, "ELR_EL1", 64, ARMV8_64_EL1H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_ESR_EL1, "ESR_EL1", 64, ARMV8_64_EL1H, REG_TYPE_UINT64, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_SPSR_EL1, "SPSR_EL1", 64, ARMV8_64_EL1H, REG_TYPE_UINT64, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_ELR_EL2, "ELR_EL2", 64, ARMV8_64_EL2H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_ESR_EL2, "ESR_EL2", 64, ARMV8_64_EL2H, REG_TYPE_UINT64, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_SPSR_EL2, "SPSR_EL2", 64, ARMV8_64_EL2H, REG_TYPE_UINT64, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_ELR_EL3, "ELR_EL3", 64, ARMV8_64_EL3H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_ESR_EL3, "ESR_EL3", 64, ARMV8_64_EL3H, REG_TYPE_UINT64, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_SPSR_EL3, "SPSR_EL3", 64, ARMV8_64_EL3H, REG_TYPE_UINT64, "banked", "net.sourceforge.openocd.banked",
NULL},
{ ARMV8_PAUTH_DMASK, "pauth_dmask", 64, ARM_MODE_ANY, REG_TYPE_UINT64, NULL, "org.gnu.gdb.aarch64.pauth", NULL},
{ ARMV8_PAUTH_CMASK, "pauth_cmask", 64, ARM_MODE_ANY, REG_TYPE_UINT64, NULL, "org.gnu.gdb.aarch64.pauth", NULL},
};
static const struct {
unsigned id;
unsigned mapping;
const char *name;
unsigned bits;
enum arm_mode mode;
enum reg_type type;
const char *group;
const char *feature;
} armv8_regs32[] = {
{ ARMV8_R0, 0, "r0", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R1, 0, "r1", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R2, 0, "r2", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R3, 0, "r3", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R4, 0, "r4", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R5, 0, "r5", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R6, 0, "r6", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R7, 0, "r7", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R8, 0, "r8", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R9, 0, "r9", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R10, 0, "r10", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R11, 0, "r11", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R12, 0, "r12", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R13, 0, "sp", 32, ARM_MODE_ANY, REG_TYPE_DATA_PTR, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_R14, 0, "lr", 32, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_PC, 0, "pc", 32, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_XPSR, 0, "cpsr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
{ ARMV8_V0, 0, "d0", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V0, 8, "d1", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V1, 0, "d2", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V1, 8, "d3", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V2, 0, "d4", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V2, 8, "d5", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V3, 0, "d6", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V3, 8, "d7", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V4, 0, "d8", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V4, 8, "d9", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V5, 0, "d10", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V5, 8, "d11", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V6, 0, "d12", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V6, 8, "d13", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V7, 0, "d14", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V7, 8, "d15", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V8, 0, "d16", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V8, 8, "d17", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V9, 0, "d18", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V9, 8, "d19", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V10, 0, "d20", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V10, 8, "d21", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V11, 0, "d22", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V11, 8, "d23", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V12, 0, "d24", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V12, 8, "d25", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V13, 0, "d26", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V13, 8, "d27", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V14, 0, "d28", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V14, 8, "d29", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V15, 0, "d30", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_V15, 8, "d31", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
{ ARMV8_FPSR, 0, "fpscr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "float", "org.gnu.gdb.arm.vfp"},
};
#define ARMV8_NUM_REGS ARRAY_SIZE(armv8_regs)
#define ARMV8_NUM_REGS32 ARRAY_SIZE(armv8_regs32)
static int armv8_get_core_reg(struct reg *reg)
{
struct arm_reg *armv8_reg = reg->arch_info;
struct target *target = armv8_reg->target;
struct arm *arm = target_to_arm(target);
if (target->state != TARGET_HALTED)
return ERROR_TARGET_NOT_HALTED;
return arm->read_core_reg(target, reg, armv8_reg->num, arm->core_mode);
}
static int armv8_set_core_reg(struct reg *reg, uint8_t *buf)
{
struct arm_reg *armv8_reg = reg->arch_info;
struct target *target = armv8_reg->target;
struct arm *arm = target_to_arm(target);
uint64_t value = buf_get_u64(buf, 0, reg->size);
if (target->state != TARGET_HALTED)
return ERROR_TARGET_NOT_HALTED;
if (reg->size <= 64) {
if (reg == arm->cpsr)
armv8_set_cpsr(arm, (uint32_t)value);
else {
buf_set_u64(reg->value, 0, reg->size, value);
reg->valid = true;
}
} else if (reg->size <= 128) {
uint64_t hvalue = buf_get_u64(buf + 8, 0, reg->size - 64);
buf_set_u64(reg->value, 0, 64, value);
buf_set_u64(reg->value + 8, 0, reg->size - 64, hvalue);
reg->valid = true;
}
reg->dirty = true;
return ERROR_OK;
}
static const struct reg_arch_type armv8_reg_type = {
.get = armv8_get_core_reg,
.set = armv8_set_core_reg,
};
static int armv8_get_core_reg32(struct reg *reg)
{
struct arm_reg *armv8_reg = reg->arch_info;
struct target *target = armv8_reg->target;
struct arm *arm = target_to_arm(target);
struct reg_cache *cache = arm->core_cache;
struct reg *reg64;
int retval;
if (target->state != TARGET_HALTED)
return ERROR_TARGET_NOT_HALTED;
/* get the corresponding Aarch64 register */
reg64 = cache->reg_list + armv8_reg->num;
if (reg64->valid) {
reg->valid = true;
return ERROR_OK;
}
retval = arm->read_core_reg(target, reg64, armv8_reg->num, arm->core_mode);
if (retval == ERROR_OK)
reg->valid = reg64->valid;
return retval;
}
static int armv8_set_core_reg32(struct reg *reg, uint8_t *buf)
{
struct arm_reg *armv8_reg = reg->arch_info;
struct target *target = armv8_reg->target;
struct arm *arm = target_to_arm(target);
struct reg_cache *cache = arm->core_cache;
struct reg *reg64 = cache->reg_list + armv8_reg->num;
uint32_t value = buf_get_u32(buf, 0, 32);
if (target->state != TARGET_HALTED)
return ERROR_TARGET_NOT_HALTED;
if (reg64 == arm->cpsr) {
armv8_set_cpsr(arm, value);
} else {
if (reg->size <= 32)
buf_set_u32(reg->value, 0, 32, value);
else if (reg->size <= 64) {
uint64_t value64 = buf_get_u64(buf, 0, 64);
buf_set_u64(reg->value, 0, 64, value64);
}
reg->valid = true;
reg64->valid = true;
}
reg64->dirty = true;
return ERROR_OK;
}
static const struct reg_arch_type armv8_reg32_type = {
.get = armv8_get_core_reg32,
.set = armv8_set_core_reg32,
};
/** Builds cache of architecturally defined registers. */
struct reg_cache *armv8_build_reg_cache(struct target *target)
{
struct armv8_common *armv8 = target_to_armv8(target);
struct arm *arm = &armv8->arm;
int num_regs = ARMV8_NUM_REGS;
int num_regs32 = ARMV8_NUM_REGS32;
struct reg_cache **cache_p = register_get_last_cache_p(&target->reg_cache);
struct reg_cache *cache = malloc(sizeof(struct reg_cache));
struct reg_cache *cache32 = malloc(sizeof(struct reg_cache));
struct reg *reg_list = calloc(num_regs, sizeof(struct reg));
struct reg *reg_list32 = calloc(num_regs32, sizeof(struct reg));
struct arm_reg *arch_info = calloc(num_regs, sizeof(struct arm_reg));
struct reg_feature *feature;
int i;
/* Build the process context cache */
cache->name = "Aarch64 registers";
cache->next = cache32;
cache->reg_list = reg_list;
cache->num_regs = num_regs;
for (i = 0; i < num_regs; i++) {
arch_info[i].num = armv8_regs[i].id;
arch_info[i].mode = armv8_regs[i].mode;
arch_info[i].target = target;
arch_info[i].arm = arm;
reg_list[i].name = armv8_regs[i].name;
reg_list[i].size = armv8_regs[i].bits;
reg_list[i].value = &arch_info[i].value[0];
reg_list[i].type = &armv8_reg_type;
reg_list[i].arch_info = &arch_info[i];
reg_list[i].group = armv8_regs[i].group;
reg_list[i].number = i;
reg_list[i].exist = true;
reg_list[i].caller_save = true; /* gdb defaults to true */
feature = calloc(1, sizeof(struct reg_feature));
if (feature) {
feature->name = armv8_regs[i].feature;
reg_list[i].feature = feature;
} else
LOG_ERROR("unable to allocate feature list");
reg_list[i].reg_data_type = calloc(1, sizeof(struct reg_data_type));
if (reg_list[i].reg_data_type) {
if (!armv8_regs[i].data_type)
reg_list[i].reg_data_type->type = armv8_regs[i].type;
else
*reg_list[i].reg_data_type = *armv8_regs[i].data_type;
} else
LOG_ERROR("unable to allocate reg type list");
if (i == ARMV8_PAUTH_CMASK || i == ARMV8_PAUTH_DMASK)
reg_list[i].exist = armv8->enable_pauth;
}
arm->cpsr = reg_list + ARMV8_XPSR;
arm->pc = reg_list + ARMV8_PC;
arm->core_cache = cache;
/* shadow cache for ARM mode registers */
cache32->name = "Aarch32 registers";
cache32->next = NULL;
cache32->reg_list = reg_list32;
cache32->num_regs = num_regs32;
for (i = 0; i < num_regs32; i++) {
reg_list32[i].name = armv8_regs32[i].name;
reg_list32[i].size = armv8_regs32[i].bits;
reg_list32[i].value = &arch_info[armv8_regs32[i].id].value[armv8_regs32[i].mapping];
reg_list32[i].type = &armv8_reg32_type;
reg_list32[i].arch_info = &arch_info[armv8_regs32[i].id];
reg_list32[i].group = armv8_regs32[i].group;
reg_list32[i].number = i;
reg_list32[i].exist = true;
reg_list32[i].caller_save = true;
feature = calloc(1, sizeof(struct reg_feature));
if (feature) {
feature->name = armv8_regs32[i].feature;
reg_list32[i].feature = feature;
} else
LOG_ERROR("unable to allocate feature list");
reg_list32[i].reg_data_type = calloc(1, sizeof(struct reg_data_type));
if (reg_list32[i].reg_data_type)
reg_list32[i].reg_data_type->type = armv8_regs32[i].type;
else
LOG_ERROR("unable to allocate reg type list");
}
(*cache_p) = cache;
return cache;
}
struct reg *armv8_reg_current(struct arm *arm, unsigned regnum)
{
struct reg *r;
if (regnum > (ARMV8_LAST_REG - 1))
return NULL;
r = arm->core_cache->reg_list + regnum;
return r;
}
static void armv8_free_cache(struct reg_cache *cache, bool regs32)
{
struct reg *reg;
unsigned int i;
if (!cache)
return;
for (i = 0; i < cache->num_regs; i++) {
reg = &cache->reg_list[i];
free(reg->feature);
free(reg->reg_data_type);
}
if (!regs32)
free(cache->reg_list[0].arch_info);
free(cache->reg_list);
free(cache);
}
void armv8_free_reg_cache(struct target *target)
{
struct armv8_common *armv8 = target_to_armv8(target);
struct arm *arm = &armv8->arm;
struct reg_cache *cache = NULL, *cache32 = NULL;
cache = arm->core_cache;
if (cache)
cache32 = cache->next;
armv8_free_cache(cache32, true);
armv8_free_cache(cache, false);
arm->core_cache = NULL;
}
const struct command_registration armv8_command_handlers[] = {
{
.name = "catch_exc",
.handler = armv8_handle_exception_catch_command,
.mode = COMMAND_EXEC,
.help = "configure exception catch",
.usage = "[(nsec_el1,nsec_el2,sec_el1,sec_el3)+,off]",
},
{
.name = "pauth",
.handler = armv8_pauth_command,
.mode = COMMAND_CONFIG,
.help = "enable or disable providing GDB with an 8-bytes mask to "
"remove signature bits added by pointer authentication."
"Pointer authentication feature is broken until gdb 12.1, going to be fixed. "
"Consider using a newer version of gdb if you want enable "
"pauth feature.",
.usage = "[on|off]",
},
COMMAND_REGISTRATION_DONE
};
const char *armv8_get_gdb_arch(const struct target *target)
{
struct arm *arm = target_to_arm(target);
return arm->core_state == ARM_STATE_AARCH64 ? "aarch64" : "arm";
}
int armv8_get_gdb_reg_list(struct target *target,
struct reg **reg_list[], int *reg_list_size,
enum target_register_class reg_class)
{
struct arm *arm = target_to_arm(target);
int i;
if (arm->core_state == ARM_STATE_AARCH64) {
LOG_DEBUG("Creating Aarch64 register list for target %s", target_name(target));
switch (reg_class) {
case REG_CLASS_GENERAL:
*reg_list_size = ARMV8_V0;
*reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
for (i = 0; i < *reg_list_size; i++)
(*reg_list)[i] = armv8_reg_current(arm, i);
return ERROR_OK;
case REG_CLASS_ALL:
*reg_list_size = ARMV8_LAST_REG;
*reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
for (i = 0; i < *reg_list_size; i++)
(*reg_list)[i] = armv8_reg_current(arm, i);
return ERROR_OK;
default:
LOG_ERROR("not a valid register class type in query.");
return ERROR_FAIL;
}
} else {
struct reg_cache *cache32 = arm->core_cache->next;
LOG_DEBUG("Creating Aarch32 register list for target %s", target_name(target));
switch (reg_class) {
case REG_CLASS_GENERAL:
*reg_list_size = ARMV8_R14 + 3;
*reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
for (i = 0; i < *reg_list_size; i++)
(*reg_list)[i] = cache32->reg_list + i;
return ERROR_OK;
case REG_CLASS_ALL:
*reg_list_size = cache32->num_regs;
*reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
for (i = 0; i < *reg_list_size; i++)
(*reg_list)[i] = cache32->reg_list + i;
return ERROR_OK;
default:
LOG_ERROR("not a valid register class type in query.");
return ERROR_FAIL;
}
}
}
int armv8_set_dbgreg_bits(struct armv8_common *armv8, unsigned int reg, unsigned long mask, unsigned long value)
{
uint32_t tmp;
/* Read register */
int retval = mem_ap_read_atomic_u32(armv8->debug_ap,
armv8->debug_base + reg, &tmp);
if (retval != ERROR_OK)
return retval;
/* clear bitfield */
tmp &= ~mask;
/* put new value */
tmp |= value & mask;
/* write new value */
retval = mem_ap_write_atomic_u32(armv8->debug_ap,
armv8->debug_base + reg, tmp);
return retval;
}
Details ![]()
Show: from Types: Columns: ![]( "Show Project Names")
![]( "Show Locations")
![]( "Show Referring Symbols")
![]( "Show Scope")
Click anywhere in the source to view detailed information here...