1 //===-- ABISysV_arm64.cpp ---------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "ABISysV_arm64.h"
16 // Other libraries and framework includes
17 #include "llvm/ADT/STLExtras.h"
18 #include "llvm/ADT/Triple.h"
21 #include "lldb/Core/Module.h"
22 #include "lldb/Core/PluginManager.h"
23 #include "lldb/Core/RegisterValue.h"
24 #include "lldb/Core/Scalar.h"
25 #include "lldb/Core/Value.h"
26 #include "lldb/Core/ValueObjectConstResult.h"
27 #include "lldb/Symbol/UnwindPlan.h"
28 #include "lldb/Target/Process.h"
29 #include "lldb/Target/RegisterContext.h"
30 #include "lldb/Target/Target.h"
31 #include "lldb/Target/Thread.h"
32 #include "lldb/Utility/ConstString.h"
33 #include "lldb/Utility/Log.h"
34 #include "lldb/Utility/Status.h"
36 #include "Utility/ARM64_DWARF_Registers.h"
39 using namespace lldb_private;
41 static RegisterInfo g_register_infos[] = {
42 // NAME ALT SZ OFF ENCODING FORMAT
43 // EH_FRAME DWARF GENERIC
44 // PROCESS PLUGIN LLDB NATIVE
45 // ========== ======= == === ============= ===================
46 // =================== ====================== ===========================
47 // ======================= ======================
54 {LLDB_INVALID_REGNUM, arm64_dwarf::x0, LLDB_REGNUM_GENERIC_ARG1,
55 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
66 {LLDB_INVALID_REGNUM, arm64_dwarf::x1, LLDB_REGNUM_GENERIC_ARG2,
67 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
78 {LLDB_INVALID_REGNUM, arm64_dwarf::x2, LLDB_REGNUM_GENERIC_ARG3,
79 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
90 {LLDB_INVALID_REGNUM, arm64_dwarf::x3, LLDB_REGNUM_GENERIC_ARG4,
91 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
102 {LLDB_INVALID_REGNUM, arm64_dwarf::x4, LLDB_REGNUM_GENERIC_ARG5,
103 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
114 {LLDB_INVALID_REGNUM, arm64_dwarf::x5, LLDB_REGNUM_GENERIC_ARG6,
115 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
126 {LLDB_INVALID_REGNUM, arm64_dwarf::x6, LLDB_REGNUM_GENERIC_ARG7,
127 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
138 {LLDB_INVALID_REGNUM, arm64_dwarf::x7, LLDB_REGNUM_GENERIC_ARG8,
139 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
150 {LLDB_INVALID_REGNUM, arm64_dwarf::x8, LLDB_INVALID_REGNUM,
151 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
162 {LLDB_INVALID_REGNUM, arm64_dwarf::x9, LLDB_INVALID_REGNUM,
163 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
174 {LLDB_INVALID_REGNUM, arm64_dwarf::x10, LLDB_INVALID_REGNUM,
175 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
186 {LLDB_INVALID_REGNUM, arm64_dwarf::x11, LLDB_INVALID_REGNUM,
187 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
198 {LLDB_INVALID_REGNUM, arm64_dwarf::x12, LLDB_INVALID_REGNUM,
199 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
210 {LLDB_INVALID_REGNUM, arm64_dwarf::x13, LLDB_INVALID_REGNUM,
211 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
222 {LLDB_INVALID_REGNUM, arm64_dwarf::x14, LLDB_INVALID_REGNUM,
223 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
234 {LLDB_INVALID_REGNUM, arm64_dwarf::x15, LLDB_INVALID_REGNUM,
235 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
246 {LLDB_INVALID_REGNUM, arm64_dwarf::x16, LLDB_INVALID_REGNUM,
247 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
258 {LLDB_INVALID_REGNUM, arm64_dwarf::x17, LLDB_INVALID_REGNUM,
259 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
270 {LLDB_INVALID_REGNUM, arm64_dwarf::x18, LLDB_INVALID_REGNUM,
271 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
282 {LLDB_INVALID_REGNUM, arm64_dwarf::x19, LLDB_INVALID_REGNUM,
283 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
294 {LLDB_INVALID_REGNUM, arm64_dwarf::x20, LLDB_INVALID_REGNUM,
295 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
306 {LLDB_INVALID_REGNUM, arm64_dwarf::x21, LLDB_INVALID_REGNUM,
307 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
318 {LLDB_INVALID_REGNUM, arm64_dwarf::x22, LLDB_INVALID_REGNUM,
319 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
330 {LLDB_INVALID_REGNUM, arm64_dwarf::x23, LLDB_INVALID_REGNUM,
331 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
342 {LLDB_INVALID_REGNUM, arm64_dwarf::x24, LLDB_INVALID_REGNUM,
343 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
354 {LLDB_INVALID_REGNUM, arm64_dwarf::x25, LLDB_INVALID_REGNUM,
355 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
366 {LLDB_INVALID_REGNUM, arm64_dwarf::x26, LLDB_INVALID_REGNUM,
367 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
378 {LLDB_INVALID_REGNUM, arm64_dwarf::x27, LLDB_INVALID_REGNUM,
379 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
390 {LLDB_INVALID_REGNUM, arm64_dwarf::x28, LLDB_INVALID_REGNUM,
391 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
402 {LLDB_INVALID_REGNUM, arm64_dwarf::x29, LLDB_REGNUM_GENERIC_FP,
403 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
414 {LLDB_INVALID_REGNUM, arm64_dwarf::x30, LLDB_REGNUM_GENERIC_RA,
415 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
426 {LLDB_INVALID_REGNUM, arm64_dwarf::x31, LLDB_REGNUM_GENERIC_SP,
427 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
438 {LLDB_INVALID_REGNUM, arm64_dwarf::pc, LLDB_REGNUM_GENERIC_PC,
439 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
450 {LLDB_INVALID_REGNUM, arm64_dwarf::cpsr, LLDB_REGNUM_GENERIC_FLAGS,
451 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
462 eFormatVectorOfUInt8,
463 {LLDB_INVALID_REGNUM, arm64_dwarf::v0, LLDB_INVALID_REGNUM,
464 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
474 eFormatVectorOfUInt8,
475 {LLDB_INVALID_REGNUM, arm64_dwarf::v1, LLDB_INVALID_REGNUM,
476 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
486 eFormatVectorOfUInt8,
487 {LLDB_INVALID_REGNUM, arm64_dwarf::v2, LLDB_INVALID_REGNUM,
488 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
498 eFormatVectorOfUInt8,
499 {LLDB_INVALID_REGNUM, arm64_dwarf::v3, LLDB_INVALID_REGNUM,
500 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
510 eFormatVectorOfUInt8,
511 {LLDB_INVALID_REGNUM, arm64_dwarf::v4, LLDB_INVALID_REGNUM,
512 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
522 eFormatVectorOfUInt8,
523 {LLDB_INVALID_REGNUM, arm64_dwarf::v5, LLDB_INVALID_REGNUM,
524 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
534 eFormatVectorOfUInt8,
535 {LLDB_INVALID_REGNUM, arm64_dwarf::v6, LLDB_INVALID_REGNUM,
536 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
546 eFormatVectorOfUInt8,
547 {LLDB_INVALID_REGNUM, arm64_dwarf::v7, LLDB_INVALID_REGNUM,
548 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
558 eFormatVectorOfUInt8,
559 {LLDB_INVALID_REGNUM, arm64_dwarf::v8, LLDB_INVALID_REGNUM,
560 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
570 eFormatVectorOfUInt8,
571 {LLDB_INVALID_REGNUM, arm64_dwarf::v9, LLDB_INVALID_REGNUM,
572 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
582 eFormatVectorOfUInt8,
583 {LLDB_INVALID_REGNUM, arm64_dwarf::v10, LLDB_INVALID_REGNUM,
584 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
594 eFormatVectorOfUInt8,
595 {LLDB_INVALID_REGNUM, arm64_dwarf::v11, LLDB_INVALID_REGNUM,
596 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
606 eFormatVectorOfUInt8,
607 {LLDB_INVALID_REGNUM, arm64_dwarf::v12, LLDB_INVALID_REGNUM,
608 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
618 eFormatVectorOfUInt8,
619 {LLDB_INVALID_REGNUM, arm64_dwarf::v13, LLDB_INVALID_REGNUM,
620 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
630 eFormatVectorOfUInt8,
631 {LLDB_INVALID_REGNUM, arm64_dwarf::v14, LLDB_INVALID_REGNUM,
632 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
642 eFormatVectorOfUInt8,
643 {LLDB_INVALID_REGNUM, arm64_dwarf::v15, LLDB_INVALID_REGNUM,
644 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
654 eFormatVectorOfUInt8,
655 {LLDB_INVALID_REGNUM, arm64_dwarf::v16, LLDB_INVALID_REGNUM,
656 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
666 eFormatVectorOfUInt8,
667 {LLDB_INVALID_REGNUM, arm64_dwarf::v17, LLDB_INVALID_REGNUM,
668 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
678 eFormatVectorOfUInt8,
679 {LLDB_INVALID_REGNUM, arm64_dwarf::v18, LLDB_INVALID_REGNUM,
680 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
690 eFormatVectorOfUInt8,
691 {LLDB_INVALID_REGNUM, arm64_dwarf::v19, LLDB_INVALID_REGNUM,
692 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
702 eFormatVectorOfUInt8,
703 {LLDB_INVALID_REGNUM, arm64_dwarf::v20, LLDB_INVALID_REGNUM,
704 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
714 eFormatVectorOfUInt8,
715 {LLDB_INVALID_REGNUM, arm64_dwarf::v21, LLDB_INVALID_REGNUM,
716 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
726 eFormatVectorOfUInt8,
727 {LLDB_INVALID_REGNUM, arm64_dwarf::v22, LLDB_INVALID_REGNUM,
728 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
738 eFormatVectorOfUInt8,
739 {LLDB_INVALID_REGNUM, arm64_dwarf::v23, LLDB_INVALID_REGNUM,
740 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
750 eFormatVectorOfUInt8,
751 {LLDB_INVALID_REGNUM, arm64_dwarf::v24, LLDB_INVALID_REGNUM,
752 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
762 eFormatVectorOfUInt8,
763 {LLDB_INVALID_REGNUM, arm64_dwarf::v25, LLDB_INVALID_REGNUM,
764 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
774 eFormatVectorOfUInt8,
775 {LLDB_INVALID_REGNUM, arm64_dwarf::v26, LLDB_INVALID_REGNUM,
776 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
786 eFormatVectorOfUInt8,
787 {LLDB_INVALID_REGNUM, arm64_dwarf::v27, LLDB_INVALID_REGNUM,
788 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
798 eFormatVectorOfUInt8,
799 {LLDB_INVALID_REGNUM, arm64_dwarf::v28, LLDB_INVALID_REGNUM,
800 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
810 eFormatVectorOfUInt8,
811 {LLDB_INVALID_REGNUM, arm64_dwarf::v29, LLDB_INVALID_REGNUM,
812 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
822 eFormatVectorOfUInt8,
823 {LLDB_INVALID_REGNUM, arm64_dwarf::v30, LLDB_INVALID_REGNUM,
824 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
834 eFormatVectorOfUInt8,
835 {LLDB_INVALID_REGNUM, arm64_dwarf::v31, LLDB_INVALID_REGNUM,
836 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
848 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
849 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
860 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
861 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
873 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
874 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
885 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
886 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
897 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
898 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
909 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
910 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
921 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
922 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
933 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
934 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
945 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
946 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
957 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
958 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
969 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
970 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
981 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
982 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
993 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
994 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1005 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1006 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1017 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1018 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1029 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1030 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1041 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1042 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1053 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1054 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1065 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1066 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1077 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1078 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1089 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1090 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1101 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1102 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1113 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1114 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1125 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1126 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1137 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1138 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1149 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1150 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1161 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1162 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1173 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1174 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1185 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1186 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1197 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1198 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1209 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1210 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1221 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1222 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1233 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1234 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1245 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1246 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1258 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1259 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1270 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1271 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1282 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1283 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1294 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1295 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1306 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1307 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1318 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1319 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1330 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1331 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1342 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1343 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1354 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1355 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1366 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1367 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1378 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1379 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1390 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1391 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1402 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1403 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1414 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1415 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1426 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1427 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1438 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1439 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1450 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1451 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1462 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1463 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1474 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1475 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1486 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1487 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1498 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1499 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1510 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1511 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1522 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1523 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1534 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1535 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1546 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1547 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1558 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1559 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1570 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1571 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1582 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1583 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1594 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1595 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1606 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1607 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1618 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1619 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1630 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1631 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1637 static const uint32_t k_num_register_infos =
1638 llvm::array_lengthof(g_register_infos);
1639 static bool g_register_info_names_constified = false;
1641 const lldb_private::RegisterInfo *
1642 ABISysV_arm64::GetRegisterInfoArray(uint32_t &count) {
1643 // Make the C-string names and alt_names for the register infos into const
1644 // C-string values by having the ConstString unique the names in the global
1645 // constant C-string pool.
1646 if (!g_register_info_names_constified) {
1647 g_register_info_names_constified = true;
1648 for (uint32_t i = 0; i < k_num_register_infos; ++i) {
1649 if (g_register_infos[i].name)
1650 g_register_infos[i].name =
1651 ConstString(g_register_infos[i].name).GetCString();
1652 if (g_register_infos[i].alt_name)
1653 g_register_infos[i].alt_name =
1654 ConstString(g_register_infos[i].alt_name).GetCString();
1657 count = k_num_register_infos;
1658 return g_register_infos;
1661 bool ABISysV_arm64::GetPointerReturnRegister(const char *&name) {
1666 size_t ABISysV_arm64::GetRedZoneSize() const { return 128; }
1668 //------------------------------------------------------------------
1670 //------------------------------------------------------------------
1673 ABISysV_arm64::CreateInstance(lldb::ProcessSP process_sp, const ArchSpec &arch) {
1674 static ABISP g_abi_sp;
1675 const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch();
1676 const llvm::Triple::VendorType vendor_type = arch.GetTriple().getVendor();
1678 if (vendor_type != llvm::Triple::Apple) {
1679 if (arch_type == llvm::Triple::aarch64) {
1681 g_abi_sp.reset(new ABISysV_arm64(process_sp));
1689 bool ABISysV_arm64::PrepareTrivialCall(Thread &thread, addr_t sp,
1690 addr_t func_addr, addr_t return_addr,
1691 llvm::ArrayRef<addr_t> args) const {
1692 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
1696 Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
1700 s.Printf("ABISysV_arm64::PrepareTrivialCall (tid = 0x%" PRIx64
1701 ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64
1702 ", return_addr = 0x%" PRIx64,
1703 thread.GetID(), (uint64_t)sp, (uint64_t)func_addr,
1704 (uint64_t)return_addr);
1706 for (size_t i = 0; i < args.size(); ++i)
1707 s.Printf(", arg%d = 0x%" PRIx64, static_cast<int>(i + 1), args[i]);
1709 log->PutString(s.GetString());
1712 // x0 - x7 contain first 8 simple args
1713 if (args.size() > 8)
1716 for (size_t i = 0; i < args.size(); ++i) {
1717 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(
1718 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i);
1720 log->Printf("About to write arg%d (0x%" PRIx64 ") into %s",
1721 static_cast<int>(i + 1), args[i], reg_info->name);
1722 if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i]))
1726 // Set "lr" to the return address
1727 if (!reg_ctx->WriteRegisterFromUnsigned(
1728 reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
1729 LLDB_REGNUM_GENERIC_RA),
1733 // Set "sp" to the requested value
1734 if (!reg_ctx->WriteRegisterFromUnsigned(
1735 reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
1736 LLDB_REGNUM_GENERIC_SP),
1740 // Set "pc" to the address requested
1741 if (!reg_ctx->WriteRegisterFromUnsigned(
1742 reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
1743 LLDB_REGNUM_GENERIC_PC),
1750 // TODO: We dont support fp/SIMD arguments in v0-v7
1751 bool ABISysV_arm64::GetArgumentValues(Thread &thread, ValueList &values) const {
1752 uint32_t num_values = values.GetSize();
1754 ExecutionContext exe_ctx(thread.shared_from_this());
1756 // Extract the register context so we can read arguments from registers
1758 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
1765 for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx) {
1766 // We currently only support extracting values with Clang QualTypes. Do we
1767 // care about others?
1768 Value *value = values.GetValueAtIndex(value_idx);
1773 CompilerType value_type = value->GetCompilerType();
1775 bool is_signed = false;
1776 size_t bit_width = 0;
1777 if (value_type.IsIntegerOrEnumerationType(is_signed)) {
1778 bit_width = value_type.GetBitSize(&thread);
1779 } else if (value_type.IsPointerOrReferenceType()) {
1780 bit_width = value_type.GetBitSize(&thread);
1782 // We only handle integer, pointer and reference types currently...
1786 if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8)) {
1787 if (value_idx < 8) {
1788 // Arguments 1-8 are in x0-x7...
1789 const RegisterInfo *reg_info = nullptr;
1790 reg_info = reg_ctx->GetRegisterInfo(
1791 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx);
1794 RegisterValue reg_value;
1796 if (reg_ctx->ReadRegister(reg_info, reg_value)) {
1798 reg_value.SignExtend(bit_width);
1799 if (!reg_value.GetScalarValue(value->GetScalar()))
1806 // TODO: Verify for stack layout for SysV
1808 // Read the stack pointer if we already haven't read it
1809 sp = reg_ctx->GetSP(0);
1814 // Arguments 5 on up are on the stack
1815 const uint32_t arg_byte_size = (bit_width + (8 - 1)) / 8;
1817 if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(
1818 sp, arg_byte_size, is_signed, value->GetScalar(), error))
1821 sp += arg_byte_size;
1822 // Align up to the next 8 byte boundary if needed
1835 Status ABISysV_arm64::SetReturnValueObject(lldb::StackFrameSP &frame_sp,
1836 lldb::ValueObjectSP &new_value_sp) {
1838 if (!new_value_sp) {
1839 error.SetErrorString("Empty value object for return value.");
1843 CompilerType return_value_type = new_value_sp->GetCompilerType();
1844 if (!return_value_type) {
1845 error.SetErrorString("Null clang type for return value.");
1849 Thread *thread = frame_sp->GetThread().get();
1851 RegisterContext *reg_ctx = thread->GetRegisterContext().get();
1856 const uint64_t byte_size = new_value_sp->GetData(data, data_error);
1857 if (data_error.Fail()) {
1858 error.SetErrorStringWithFormat(
1859 "Couldn't convert return value to raw data: %s",
1860 data_error.AsCString());
1864 const uint32_t type_flags = return_value_type.GetTypeInfo(nullptr);
1865 if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) {
1866 if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer) {
1867 // Extract the register context so we can read arguments from registers
1868 lldb::offset_t offset = 0;
1869 if (byte_size <= 16) {
1870 const RegisterInfo *x0_info = reg_ctx->GetRegisterInfo(
1871 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1);
1872 if (byte_size <= 8) {
1873 uint64_t raw_value = data.GetMaxU64(&offset, byte_size);
1875 if (!reg_ctx->WriteRegisterFromUnsigned(x0_info, raw_value))
1876 error.SetErrorString("failed to write register x0");
1878 uint64_t raw_value = data.GetMaxU64(&offset, 8);
1880 if (reg_ctx->WriteRegisterFromUnsigned(x0_info, raw_value)) {
1881 const RegisterInfo *x1_info = reg_ctx->GetRegisterInfo(
1882 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG2);
1883 raw_value = data.GetMaxU64(&offset, byte_size - offset);
1885 if (!reg_ctx->WriteRegisterFromUnsigned(x1_info, raw_value))
1886 error.SetErrorString("failed to write register x1");
1890 error.SetErrorString("We don't support returning longer than 128 bit "
1891 "integer values at present.");
1893 } else if (type_flags & eTypeIsFloat) {
1894 if (type_flags & eTypeIsComplex) {
1895 // Don't handle complex yet.
1896 error.SetErrorString(
1897 "returning complex float values are not supported");
1899 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);
1902 if (byte_size <= 16) {
1903 if (byte_size <= RegisterValue::GetMaxByteSize()) {
1904 RegisterValue reg_value;
1905 error = reg_value.SetValueFromData(v0_info, data, 0, true);
1906 if (error.Success()) {
1907 if (!reg_ctx->WriteRegister(v0_info, reg_value))
1908 error.SetErrorString("failed to write register v0");
1911 error.SetErrorStringWithFormat(
1912 "returning float values with a byte size of %" PRIu64
1913 " are not supported",
1917 error.SetErrorString("returning float values longer than 128 "
1918 "bits are not supported");
1921 error.SetErrorString("v0 register is not available on this target");
1925 } else if (type_flags & eTypeIsVector) {
1926 if (byte_size > 0) {
1927 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);
1930 if (byte_size <= v0_info->byte_size) {
1931 RegisterValue reg_value;
1932 error = reg_value.SetValueFromData(v0_info, data, 0, true);
1933 if (error.Success()) {
1934 if (!reg_ctx->WriteRegister(v0_info, reg_value))
1935 error.SetErrorString("failed to write register v0");
1942 error.SetErrorString("no registers are available");
1948 bool ABISysV_arm64::CreateFunctionEntryUnwindPlan(UnwindPlan &unwind_plan) {
1949 unwind_plan.Clear();
1950 unwind_plan.SetRegisterKind(eRegisterKindDWARF);
1952 uint32_t lr_reg_num = arm64_dwarf::lr;
1953 uint32_t sp_reg_num = arm64_dwarf::sp;
1955 UnwindPlan::RowSP row(new UnwindPlan::Row);
1957 // Our previous Call Frame Address is the stack pointer
1958 row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 0);
1960 unwind_plan.AppendRow(row);
1961 unwind_plan.SetReturnAddressRegister(lr_reg_num);
1963 // All other registers are the same.
1965 unwind_plan.SetSourceName("arm64 at-func-entry default");
1966 unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
1967 unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
1972 bool ABISysV_arm64::CreateDefaultUnwindPlan(UnwindPlan &unwind_plan) {
1973 unwind_plan.Clear();
1974 unwind_plan.SetRegisterKind(eRegisterKindDWARF);
1976 uint32_t fp_reg_num = arm64_dwarf::fp;
1977 uint32_t pc_reg_num = arm64_dwarf::pc;
1979 UnwindPlan::RowSP row(new UnwindPlan::Row);
1980 const int32_t ptr_size = 8;
1982 row->GetCFAValue().SetIsRegisterPlusOffset(fp_reg_num, 2 * ptr_size);
1985 row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
1986 row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
1988 unwind_plan.AppendRow(row);
1989 unwind_plan.SetSourceName("arm64 default unwind plan");
1990 unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
1991 unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
1996 // AAPCS64 (Procedure Call Standard for the ARM 64-bit Architecture) says
1997 // registers x19 through x28 and sp are callee preserved. v8-v15 are non-
1998 // volatile (and specifically only the lower 8 bytes of these regs), the rest
1999 // of the fp/SIMD registers are volatile.
2001 // We treat x29 as callee preserved also, else the unwinder won't try to
2002 // retrieve fp saves.
2004 bool ABISysV_arm64::RegisterIsVolatile(const RegisterInfo *reg_info) {
2006 const char *name = reg_info->name;
2008 // Sometimes we'll be called with the "alternate" name for these registers;
2009 // recognize them as non-volatile.
2011 if (name[0] == 'p' && name[1] == 'c') // pc
2013 if (name[0] == 'f' && name[1] == 'p') // fp
2015 if (name[0] == 's' && name[1] == 'p') // sp
2017 if (name[0] == 'l' && name[1] == 'r') // lr
2020 if (name[0] == 'x' || name[0] == 'r') {
2021 // Volatile registers: x0-x18
2022 // Although documentation says only x19-28 + sp are callee saved We ll
2023 // also have to treat x30 as non-volatile. Each dwarf frame has its own
2024 // value of lr. Return false for the non-volatile gpr regs, true for
2030 return false; // x19 is non-volatile
2046 return false; // x20 - 28 are non-volatile
2048 return false; // x29 aka fp treat as non-volatile
2052 case '3': // x30 (lr) and x31 (sp) treat as non-volatile
2053 if (name[2] == '0' || name[2] == '1')
2057 return true; // all volatile cases not handled above fall here.
2059 } else if (name[0] == 'v' || name[0] == 's' || name[0] == 'd') {
2060 // Volatile registers: v0-7, v16-v31
2061 // Return false for non-volatile fp/SIMD regs, true for everything else
2065 return false; // v8-v9 are non-volatile
2074 return false; // v10-v15 are non-volatile
2086 static bool LoadValueFromConsecutiveGPRRegisters(
2087 ExecutionContext &exe_ctx, RegisterContext *reg_ctx,
2088 const CompilerType &value_type,
2089 bool is_return_value, // false => parameter, true => return value
2090 uint32_t &NGRN, // NGRN (see ABI documentation)
2091 uint32_t &NSRN, // NSRN (see ABI documentation)
2092 DataExtractor &data) {
2093 const size_t byte_size = value_type.GetByteSize(nullptr);
2098 std::unique_ptr<DataBufferHeap> heap_data_ap(
2099 new DataBufferHeap(byte_size, 0));
2100 const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
2103 CompilerType base_type;
2104 const uint32_t homogeneous_count =
2105 value_type.IsHomogeneousAggregate(&base_type);
2106 if (homogeneous_count > 0 && homogeneous_count <= 8) {
2107 // Make sure we have enough registers
2108 if (NSRN < 8 && (8 - NSRN) >= homogeneous_count) {
2111 const size_t base_byte_size = base_type.GetByteSize(nullptr);
2112 uint32_t data_offset = 0;
2114 for (uint32_t i = 0; i < homogeneous_count; ++i) {
2116 ::snprintf(v_name, sizeof(v_name), "v%u", NSRN);
2117 const RegisterInfo *reg_info =
2118 reg_ctx->GetRegisterInfoByName(v_name, 0);
2119 if (reg_info == nullptr)
2122 if (base_byte_size > reg_info->byte_size)
2125 RegisterValue reg_value;
2127 if (!reg_ctx->ReadRegister(reg_info, reg_value))
2130 // Make sure we have enough room in "heap_data_ap"
2131 if ((data_offset + base_byte_size) <= heap_data_ap->GetByteSize()) {
2132 const size_t bytes_copied = reg_value.GetAsMemoryData(
2133 reg_info, heap_data_ap->GetBytes() + data_offset, base_byte_size,
2135 if (bytes_copied != base_byte_size)
2137 data_offset += bytes_copied;
2142 data.SetByteOrder(byte_order);
2143 data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize());
2144 data.SetData(DataBufferSP(heap_data_ap.release()));
2149 const size_t max_reg_byte_size = 16;
2150 if (byte_size <= max_reg_byte_size) {
2151 size_t bytes_left = byte_size;
2152 uint32_t data_offset = 0;
2153 while (data_offset < byte_size) {
2157 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(
2158 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN);
2159 if (reg_info == nullptr)
2162 RegisterValue reg_value;
2164 if (!reg_ctx->ReadRegister(reg_info, reg_value))
2167 const size_t curr_byte_size = std::min<size_t>(8, bytes_left);
2168 const size_t bytes_copied = reg_value.GetAsMemoryData(
2169 reg_info, heap_data_ap->GetBytes() + data_offset, curr_byte_size,
2171 if (bytes_copied == 0)
2173 if (bytes_copied >= bytes_left)
2175 data_offset += bytes_copied;
2176 bytes_left -= bytes_copied;
2180 const RegisterInfo *reg_info = nullptr;
2181 if (is_return_value) {
2182 // We are assuming we are decoding this immediately after returning from
2183 // a function call and that the address of the structure is in x8
2184 reg_info = reg_ctx->GetRegisterInfoByName("x8", 0);
2186 // We are assuming we are stopped at the first instruction in a function
2187 // and that the ABI is being respected so all parameters appear where
2188 // they should be (functions with no external linkage can legally violate
2193 reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
2194 LLDB_REGNUM_GENERIC_ARG1 + NGRN);
2195 if (reg_info == nullptr)
2200 if (reg_info == nullptr)
2203 const lldb::addr_t value_addr =
2204 reg_ctx->ReadRegisterAsUnsigned(reg_info, LLDB_INVALID_ADDRESS);
2206 if (value_addr == LLDB_INVALID_ADDRESS)
2209 if (exe_ctx.GetProcessRef().ReadMemory(
2210 value_addr, heap_data_ap->GetBytes(), heap_data_ap->GetByteSize(),
2211 error) != heap_data_ap->GetByteSize()) {
2216 data.SetByteOrder(byte_order);
2217 data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize());
2218 data.SetData(DataBufferSP(heap_data_ap.release()));
2222 ValueObjectSP ABISysV_arm64::GetReturnValueObjectImpl(
2223 Thread &thread, CompilerType &return_compiler_type) const {
2224 ValueObjectSP return_valobj_sp;
2227 ExecutionContext exe_ctx(thread.shared_from_this());
2228 if (exe_ctx.GetTargetPtr() == nullptr || exe_ctx.GetProcessPtr() == nullptr)
2229 return return_valobj_sp;
2231 // value.SetContext (Value::eContextTypeClangType, return_compiler_type);
2232 value.SetCompilerType(return_compiler_type);
2234 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
2236 return return_valobj_sp;
2238 const size_t byte_size = return_compiler_type.GetByteSize(nullptr);
2240 const uint32_t type_flags = return_compiler_type.GetTypeInfo(nullptr);
2241 if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) {
2242 value.SetValueType(Value::eValueTypeScalar);
2244 bool success = false;
2245 if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer) {
2246 // Extract the register context so we can read arguments from registers
2247 if (byte_size <= 8) {
2248 const RegisterInfo *x0_reg_info = nullptr;
2249 x0_reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
2250 LLDB_REGNUM_GENERIC_ARG1);
2252 uint64_t raw_value =
2253 thread.GetRegisterContext()->ReadRegisterAsUnsigned(x0_reg_info,
2255 const bool is_signed = (type_flags & eTypeIsSigned) != 0;
2256 switch (byte_size) {
2259 case 16: // uint128_t
2260 // In register x0 and x1
2262 const RegisterInfo *x1_reg_info = nullptr;
2263 x1_reg_info = reg_ctx->GetRegisterInfo(eRegisterKindGeneric,
2264 LLDB_REGNUM_GENERIC_ARG2);
2268 x0_reg_info->byte_size + x1_reg_info->byte_size) {
2269 std::unique_ptr<DataBufferHeap> heap_data_ap(
2270 new DataBufferHeap(byte_size, 0));
2271 const ByteOrder byte_order =
2272 exe_ctx.GetProcessRef().GetByteOrder();
2273 RegisterValue x0_reg_value;
2274 RegisterValue x1_reg_value;
2275 if (reg_ctx->ReadRegister(x0_reg_info, x0_reg_value) &&
2276 reg_ctx->ReadRegister(x1_reg_info, x1_reg_value)) {
2278 if (x0_reg_value.GetAsMemoryData(
2279 x0_reg_info, heap_data_ap->GetBytes() + 0, 8,
2280 byte_order, error) &&
2281 x1_reg_value.GetAsMemoryData(
2282 x1_reg_info, heap_data_ap->GetBytes() + 8, 8,
2283 byte_order, error)) {
2285 DataBufferSP(heap_data_ap.release()), byte_order,
2286 exe_ctx.GetProcessRef().GetAddressByteSize());
2288 return_valobj_sp = ValueObjectConstResult::Create(
2289 &thread, return_compiler_type, ConstString(""), data);
2290 return return_valobj_sp;
2297 case sizeof(uint64_t):
2299 value.GetScalar() = (int64_t)(raw_value);
2301 value.GetScalar() = (uint64_t)(raw_value);
2305 case sizeof(uint32_t):
2307 value.GetScalar() = (int32_t)(raw_value & UINT32_MAX);
2309 value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX);
2313 case sizeof(uint16_t):
2315 value.GetScalar() = (int16_t)(raw_value & UINT16_MAX);
2317 value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX);
2321 case sizeof(uint8_t):
2323 value.GetScalar() = (int8_t)(raw_value & UINT8_MAX);
2325 value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX);
2331 } else if (type_flags & eTypeIsFloat) {
2332 if (type_flags & eTypeIsComplex) {
2333 // Don't handle complex yet.
2335 if (byte_size <= sizeof(long double)) {
2336 const RegisterInfo *v0_reg_info =
2337 reg_ctx->GetRegisterInfoByName("v0", 0);
2338 RegisterValue v0_value;
2339 if (reg_ctx->ReadRegister(v0_reg_info, v0_value)) {
2341 if (v0_value.GetData(data)) {
2342 lldb::offset_t offset = 0;
2343 if (byte_size == sizeof(float)) {
2344 value.GetScalar() = data.GetFloat(&offset);
2346 } else if (byte_size == sizeof(double)) {
2347 value.GetScalar() = data.GetDouble(&offset);
2349 } else if (byte_size == sizeof(long double)) {
2350 value.GetScalar() = data.GetLongDouble(&offset);
2360 return_valobj_sp = ValueObjectConstResult::Create(
2361 thread.GetStackFrameAtIndex(0).get(), value, ConstString(""));
2362 } else if (type_flags & eTypeIsVector && byte_size <= 16) {
2363 if (byte_size > 0) {
2364 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);
2367 std::unique_ptr<DataBufferHeap> heap_data_ap(
2368 new DataBufferHeap(byte_size, 0));
2369 const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
2370 RegisterValue reg_value;
2371 if (reg_ctx->ReadRegister(v0_info, reg_value)) {
2373 if (reg_value.GetAsMemoryData(v0_info, heap_data_ap->GetBytes(),
2374 heap_data_ap->GetByteSize(), byte_order,
2376 DataExtractor data(DataBufferSP(heap_data_ap.release()), byte_order,
2377 exe_ctx.GetProcessRef().GetAddressByteSize());
2378 return_valobj_sp = ValueObjectConstResult::Create(
2379 &thread, return_compiler_type, ConstString(""), data);
2384 } else if (type_flags & eTypeIsStructUnion || type_flags & eTypeIsClass ||
2385 (type_flags & eTypeIsVector && byte_size > 16)) {
2388 uint32_t NGRN = 0; // Search ABI docs for NGRN
2389 uint32_t NSRN = 0; // Search ABI docs for NSRN
2390 const bool is_return_value = true;
2391 if (LoadValueFromConsecutiveGPRRegisters(
2392 exe_ctx, reg_ctx, return_compiler_type, is_return_value, NGRN, NSRN,
2394 return_valobj_sp = ValueObjectConstResult::Create(
2395 &thread, return_compiler_type, ConstString(""), data);
2398 return return_valobj_sp;
2401 void ABISysV_arm64::Initialize() {
2402 PluginManager::RegisterPlugin(GetPluginNameStatic(),
2403 "SysV ABI for AArch64 targets", CreateInstance);
2406 void ABISysV_arm64::Terminate() {
2407 PluginManager::UnregisterPlugin(CreateInstance);
2410 lldb_private::ConstString ABISysV_arm64::GetPluginNameStatic() {
2411 static ConstString g_name("SysV-arm64");
2415 //------------------------------------------------------------------
2416 // PluginInterface protocol
2417 //------------------------------------------------------------------
2419 ConstString ABISysV_arm64::GetPluginName() { return GetPluginNameStatic(); }
2421 uint32_t ABISysV_arm64::GetPluginVersion() { return 1; }