1 //===-- ABIMacOSX_arm64.cpp -------------------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 #include "ABIMacOSX_arm64.h"
13 #include "llvm/ADT/STLExtras.h"
14 #include "llvm/ADT/Triple.h"
16 #include "lldb/Core/Module.h"
17 #include "lldb/Core/PluginManager.h"
18 #include "lldb/Core/Value.h"
19 #include "lldb/Core/ValueObjectConstResult.h"
20 #include "lldb/Symbol/UnwindPlan.h"
21 #include "lldb/Target/Process.h"
22 #include "lldb/Target/RegisterContext.h"
23 #include "lldb/Target/Target.h"
24 #include "lldb/Target/Thread.h"
25 #include "lldb/Utility/ConstString.h"
26 #include "lldb/Utility/Log.h"
27 #include "lldb/Utility/RegisterValue.h"
28 #include "lldb/Utility/Scalar.h"
29 #include "lldb/Utility/Status.h"
31 #include "Utility/ARM64_DWARF_Registers.h"
34 using namespace lldb_private;
36 static const char *pluginDesc = "Mac OS X ABI for arm64 targets";
38 static RegisterInfo g_register_infos[] = {
39 // NAME ALT SZ OFF ENCODING FORMAT
40 // EH_FRAME DWARF GENERIC
41 // PROCESS PLUGIN LLDB NATIVE
42 // ========== ======= == === ============= ===================
43 // =================== ====================== ===========================
44 // ======================= ======================
51 {LLDB_INVALID_REGNUM, arm64_dwarf::x0, LLDB_REGNUM_GENERIC_ARG1,
52 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
63 {LLDB_INVALID_REGNUM, arm64_dwarf::x1, LLDB_REGNUM_GENERIC_ARG2,
64 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
75 {LLDB_INVALID_REGNUM, arm64_dwarf::x2, LLDB_REGNUM_GENERIC_ARG3,
76 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
87 {LLDB_INVALID_REGNUM, arm64_dwarf::x3, LLDB_REGNUM_GENERIC_ARG4,
88 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
99 {LLDB_INVALID_REGNUM, arm64_dwarf::x4, LLDB_REGNUM_GENERIC_ARG5,
100 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
111 {LLDB_INVALID_REGNUM, arm64_dwarf::x5, LLDB_REGNUM_GENERIC_ARG6,
112 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
123 {LLDB_INVALID_REGNUM, arm64_dwarf::x6, LLDB_REGNUM_GENERIC_ARG7,
124 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
135 {LLDB_INVALID_REGNUM, arm64_dwarf::x7, LLDB_REGNUM_GENERIC_ARG8,
136 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
147 {LLDB_INVALID_REGNUM, arm64_dwarf::x8, LLDB_INVALID_REGNUM,
148 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
159 {LLDB_INVALID_REGNUM, arm64_dwarf::x9, LLDB_INVALID_REGNUM,
160 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
171 {LLDB_INVALID_REGNUM, arm64_dwarf::x10, LLDB_INVALID_REGNUM,
172 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
183 {LLDB_INVALID_REGNUM, arm64_dwarf::x11, LLDB_INVALID_REGNUM,
184 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
195 {LLDB_INVALID_REGNUM, arm64_dwarf::x12, LLDB_INVALID_REGNUM,
196 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
207 {LLDB_INVALID_REGNUM, arm64_dwarf::x13, LLDB_INVALID_REGNUM,
208 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
219 {LLDB_INVALID_REGNUM, arm64_dwarf::x14, LLDB_INVALID_REGNUM,
220 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
231 {LLDB_INVALID_REGNUM, arm64_dwarf::x15, LLDB_INVALID_REGNUM,
232 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
243 {LLDB_INVALID_REGNUM, arm64_dwarf::x16, LLDB_INVALID_REGNUM,
244 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
255 {LLDB_INVALID_REGNUM, arm64_dwarf::x17, LLDB_INVALID_REGNUM,
256 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
267 {LLDB_INVALID_REGNUM, arm64_dwarf::x18, LLDB_INVALID_REGNUM,
268 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
279 {LLDB_INVALID_REGNUM, arm64_dwarf::x19, LLDB_INVALID_REGNUM,
280 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
291 {LLDB_INVALID_REGNUM, arm64_dwarf::x20, LLDB_INVALID_REGNUM,
292 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
303 {LLDB_INVALID_REGNUM, arm64_dwarf::x21, LLDB_INVALID_REGNUM,
304 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
315 {LLDB_INVALID_REGNUM, arm64_dwarf::x22, LLDB_INVALID_REGNUM,
316 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
327 {LLDB_INVALID_REGNUM, arm64_dwarf::x23, LLDB_INVALID_REGNUM,
328 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
339 {LLDB_INVALID_REGNUM, arm64_dwarf::x24, LLDB_INVALID_REGNUM,
340 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
351 {LLDB_INVALID_REGNUM, arm64_dwarf::x25, LLDB_INVALID_REGNUM,
352 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
363 {LLDB_INVALID_REGNUM, arm64_dwarf::x26, LLDB_INVALID_REGNUM,
364 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
375 {LLDB_INVALID_REGNUM, arm64_dwarf::x27, LLDB_INVALID_REGNUM,
376 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
387 {LLDB_INVALID_REGNUM, arm64_dwarf::x28, LLDB_INVALID_REGNUM,
388 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
399 {LLDB_INVALID_REGNUM, arm64_dwarf::x29, LLDB_REGNUM_GENERIC_FP,
400 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
411 {LLDB_INVALID_REGNUM, arm64_dwarf::x30, LLDB_REGNUM_GENERIC_RA,
412 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
423 {LLDB_INVALID_REGNUM, arm64_dwarf::x31, LLDB_REGNUM_GENERIC_SP,
424 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
435 {LLDB_INVALID_REGNUM, arm64_dwarf::pc, LLDB_REGNUM_GENERIC_PC,
436 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
447 {LLDB_INVALID_REGNUM, arm64_dwarf::cpsr, LLDB_REGNUM_GENERIC_FLAGS,
448 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
459 eFormatVectorOfUInt8,
460 {LLDB_INVALID_REGNUM, arm64_dwarf::v0, LLDB_INVALID_REGNUM,
461 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
471 eFormatVectorOfUInt8,
472 {LLDB_INVALID_REGNUM, arm64_dwarf::v1, LLDB_INVALID_REGNUM,
473 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
483 eFormatVectorOfUInt8,
484 {LLDB_INVALID_REGNUM, arm64_dwarf::v2, LLDB_INVALID_REGNUM,
485 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
495 eFormatVectorOfUInt8,
496 {LLDB_INVALID_REGNUM, arm64_dwarf::v3, LLDB_INVALID_REGNUM,
497 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
507 eFormatVectorOfUInt8,
508 {LLDB_INVALID_REGNUM, arm64_dwarf::v4, LLDB_INVALID_REGNUM,
509 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
519 eFormatVectorOfUInt8,
520 {LLDB_INVALID_REGNUM, arm64_dwarf::v5, LLDB_INVALID_REGNUM,
521 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
531 eFormatVectorOfUInt8,
532 {LLDB_INVALID_REGNUM, arm64_dwarf::v6, LLDB_INVALID_REGNUM,
533 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
543 eFormatVectorOfUInt8,
544 {LLDB_INVALID_REGNUM, arm64_dwarf::v7, LLDB_INVALID_REGNUM,
545 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
555 eFormatVectorOfUInt8,
556 {LLDB_INVALID_REGNUM, arm64_dwarf::v8, LLDB_INVALID_REGNUM,
557 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
567 eFormatVectorOfUInt8,
568 {LLDB_INVALID_REGNUM, arm64_dwarf::v9, LLDB_INVALID_REGNUM,
569 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
579 eFormatVectorOfUInt8,
580 {LLDB_INVALID_REGNUM, arm64_dwarf::v10, LLDB_INVALID_REGNUM,
581 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
591 eFormatVectorOfUInt8,
592 {LLDB_INVALID_REGNUM, arm64_dwarf::v11, LLDB_INVALID_REGNUM,
593 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
603 eFormatVectorOfUInt8,
604 {LLDB_INVALID_REGNUM, arm64_dwarf::v12, LLDB_INVALID_REGNUM,
605 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
615 eFormatVectorOfUInt8,
616 {LLDB_INVALID_REGNUM, arm64_dwarf::v13, LLDB_INVALID_REGNUM,
617 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
627 eFormatVectorOfUInt8,
628 {LLDB_INVALID_REGNUM, arm64_dwarf::v14, LLDB_INVALID_REGNUM,
629 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
639 eFormatVectorOfUInt8,
640 {LLDB_INVALID_REGNUM, arm64_dwarf::v15, LLDB_INVALID_REGNUM,
641 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
651 eFormatVectorOfUInt8,
652 {LLDB_INVALID_REGNUM, arm64_dwarf::v16, LLDB_INVALID_REGNUM,
653 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
663 eFormatVectorOfUInt8,
664 {LLDB_INVALID_REGNUM, arm64_dwarf::v17, LLDB_INVALID_REGNUM,
665 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
675 eFormatVectorOfUInt8,
676 {LLDB_INVALID_REGNUM, arm64_dwarf::v18, LLDB_INVALID_REGNUM,
677 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
687 eFormatVectorOfUInt8,
688 {LLDB_INVALID_REGNUM, arm64_dwarf::v19, LLDB_INVALID_REGNUM,
689 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
699 eFormatVectorOfUInt8,
700 {LLDB_INVALID_REGNUM, arm64_dwarf::v20, LLDB_INVALID_REGNUM,
701 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
711 eFormatVectorOfUInt8,
712 {LLDB_INVALID_REGNUM, arm64_dwarf::v21, LLDB_INVALID_REGNUM,
713 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
723 eFormatVectorOfUInt8,
724 {LLDB_INVALID_REGNUM, arm64_dwarf::v22, LLDB_INVALID_REGNUM,
725 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
735 eFormatVectorOfUInt8,
736 {LLDB_INVALID_REGNUM, arm64_dwarf::v23, LLDB_INVALID_REGNUM,
737 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
747 eFormatVectorOfUInt8,
748 {LLDB_INVALID_REGNUM, arm64_dwarf::v24, LLDB_INVALID_REGNUM,
749 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
759 eFormatVectorOfUInt8,
760 {LLDB_INVALID_REGNUM, arm64_dwarf::v25, LLDB_INVALID_REGNUM,
761 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
771 eFormatVectorOfUInt8,
772 {LLDB_INVALID_REGNUM, arm64_dwarf::v26, LLDB_INVALID_REGNUM,
773 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
783 eFormatVectorOfUInt8,
784 {LLDB_INVALID_REGNUM, arm64_dwarf::v27, LLDB_INVALID_REGNUM,
785 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
795 eFormatVectorOfUInt8,
796 {LLDB_INVALID_REGNUM, arm64_dwarf::v28, LLDB_INVALID_REGNUM,
797 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
807 eFormatVectorOfUInt8,
808 {LLDB_INVALID_REGNUM, arm64_dwarf::v29, LLDB_INVALID_REGNUM,
809 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
819 eFormatVectorOfUInt8,
820 {LLDB_INVALID_REGNUM, arm64_dwarf::v30, LLDB_INVALID_REGNUM,
821 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
831 eFormatVectorOfUInt8,
832 {LLDB_INVALID_REGNUM, arm64_dwarf::v31, LLDB_INVALID_REGNUM,
833 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
845 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
846 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
857 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
858 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
870 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
871 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
882 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
883 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
894 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
895 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
906 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
907 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
918 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
919 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
930 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
931 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
942 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
943 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
954 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
955 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
966 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
967 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
978 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
979 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
990 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
991 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1002 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1003 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1014 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1015 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1026 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1027 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1038 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1039 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1050 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1051 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1062 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1063 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1074 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1075 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1086 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1087 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1098 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1099 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1110 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1111 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1122 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1123 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1134 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1135 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1146 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1147 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1158 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1159 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1170 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1171 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1182 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1183 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1194 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1195 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1206 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1207 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1218 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1219 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1230 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1231 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1242 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1243 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1255 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1256 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1267 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1268 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1279 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1280 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1291 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1292 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1303 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1304 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1315 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1316 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1327 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1328 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1339 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1340 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1351 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1352 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1363 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1364 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1375 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1376 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1387 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1388 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1399 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1400 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1411 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1412 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1423 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1424 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1435 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1436 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1447 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1448 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1459 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1460 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1471 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1472 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1483 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1484 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1495 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1496 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1507 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1508 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1519 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1520 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1531 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1532 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1543 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1544 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1555 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1556 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1567 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1568 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1579 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1580 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1591 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1592 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1603 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1604 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1615 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1616 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1627 {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM,
1628 LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM},
1634 static const uint32_t k_num_register_infos =
1635 llvm::array_lengthof(g_register_infos);
1636 static bool g_register_info_names_constified = false;
1638 const lldb_private::RegisterInfo *
1639 ABIMacOSX_arm64::GetRegisterInfoArray(uint32_t &count) {
1640 // Make the C-string names and alt_names for the register infos into const
1641 // C-string values by having the ConstString unique the names in the global
1642 // constant C-string pool.
1643 if (!g_register_info_names_constified) {
1644 g_register_info_names_constified = true;
1645 for (uint32_t i = 0; i < k_num_register_infos; ++i) {
1646 if (g_register_infos[i].name)
1647 g_register_infos[i].name =
1648 ConstString(g_register_infos[i].name).GetCString();
1649 if (g_register_infos[i].alt_name)
1650 g_register_infos[i].alt_name =
1651 ConstString(g_register_infos[i].alt_name).GetCString();
1654 count = k_num_register_infos;
1655 return g_register_infos;
1658 size_t ABIMacOSX_arm64::GetRedZoneSize() const { return 128; }
1663 ABIMacOSX_arm64::CreateInstance(ProcessSP process_sp, const ArchSpec &arch) {
1664 const llvm::Triple::ArchType arch_type = arch.GetTriple().getArch();
1665 const llvm::Triple::VendorType vendor_type = arch.GetTriple().getVendor();
1667 if (vendor_type == llvm::Triple::Apple) {
1668 if (arch_type == llvm::Triple::aarch64) {
1669 return ABISP(new ABIMacOSX_arm64(process_sp));
1676 bool ABIMacOSX_arm64::PrepareTrivialCall(
1677 Thread &thread, lldb::addr_t sp, lldb::addr_t func_addr,
1678 lldb::addr_t return_addr, llvm::ArrayRef<lldb::addr_t> args) const {
1679 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
1683 Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS));
1687 s.Printf("ABISysV_x86_64::PrepareTrivialCall (tid = 0x%" PRIx64
1688 ", sp = 0x%" PRIx64 ", func_addr = 0x%" PRIx64
1689 ", return_addr = 0x%" PRIx64,
1690 thread.GetID(), (uint64_t)sp, (uint64_t)func_addr,
1691 (uint64_t)return_addr);
1693 for (size_t i = 0; i < args.size(); ++i)
1694 s.Printf(", arg%d = 0x%" PRIx64, static_cast<int>(i + 1), args[i]);
1696 log->PutString(s.GetString());
1699 const uint32_t pc_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(
1700 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_PC);
1701 const uint32_t sp_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(
1702 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP);
1703 const uint32_t ra_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(
1704 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_RA);
1706 // x0 - x7 contain first 8 simple args
1707 if (args.size() > 8) // TODO handle more than 6 arguments
1710 for (size_t i = 0; i < args.size(); ++i) {
1711 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(
1712 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + i);
1714 log->Printf("About to write arg%d (0x%" PRIx64 ") into %s",
1715 static_cast<int>(i + 1), args[i], reg_info->name);
1716 if (!reg_ctx->WriteRegisterFromUnsigned(reg_info, args[i]))
1720 // Set "lr" to the return address
1721 if (!reg_ctx->WriteRegisterFromUnsigned(
1722 reg_ctx->GetRegisterInfoAtIndex(ra_reg_num), return_addr))
1725 // Set "sp" to the requested value
1726 if (!reg_ctx->WriteRegisterFromUnsigned(
1727 reg_ctx->GetRegisterInfoAtIndex(sp_reg_num), sp))
1730 // Set "pc" to the address requested
1731 if (!reg_ctx->WriteRegisterFromUnsigned(
1732 reg_ctx->GetRegisterInfoAtIndex(pc_reg_num), func_addr))
1738 bool ABIMacOSX_arm64::GetArgumentValues(Thread &thread,
1739 ValueList &values) const {
1740 uint32_t num_values = values.GetSize();
1742 ExecutionContext exe_ctx(thread.shared_from_this());
1744 // Extract the register context so we can read arguments from registers
1746 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
1753 for (uint32_t value_idx = 0; value_idx < num_values; ++value_idx) {
1754 // We currently only support extracting values with Clang QualTypes. Do we
1755 // care about others?
1756 Value *value = values.GetValueAtIndex(value_idx);
1761 CompilerType value_type = value->GetCompilerType();
1762 llvm::Optional<uint64_t> bit_size = value_type.GetBitSize(&thread);
1766 bool is_signed = false;
1767 size_t bit_width = 0;
1768 if (value_type.IsIntegerOrEnumerationType(is_signed)) {
1769 bit_width = *bit_size;
1770 } else if (value_type.IsPointerOrReferenceType()) {
1771 bit_width = *bit_size;
1773 // We only handle integer, pointer and reference types currently...
1777 if (bit_width <= (exe_ctx.GetProcessRef().GetAddressByteSize() * 8)) {
1778 if (value_idx < 8) {
1779 // Arguments 1-6 are in x0-x5...
1780 const RegisterInfo *reg_info = nullptr;
1781 // Search by generic ID first, then fall back to by name
1782 uint32_t arg_reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(
1783 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + value_idx);
1784 if (arg_reg_num != LLDB_INVALID_REGNUM) {
1785 reg_info = reg_ctx->GetRegisterInfoAtIndex(arg_reg_num);
1787 switch (value_idx) {
1789 reg_info = reg_ctx->GetRegisterInfoByName("x0");
1792 reg_info = reg_ctx->GetRegisterInfoByName("x1");
1795 reg_info = reg_ctx->GetRegisterInfoByName("x2");
1798 reg_info = reg_ctx->GetRegisterInfoByName("x3");
1801 reg_info = reg_ctx->GetRegisterInfoByName("x4");
1804 reg_info = reg_ctx->GetRegisterInfoByName("x5");
1807 reg_info = reg_ctx->GetRegisterInfoByName("x6");
1810 reg_info = reg_ctx->GetRegisterInfoByName("x7");
1816 RegisterValue reg_value;
1818 if (reg_ctx->ReadRegister(reg_info, reg_value)) {
1820 reg_value.SignExtend(bit_width);
1821 if (!reg_value.GetScalarValue(value->GetScalar()))
1829 // Read the stack pointer if we already haven't read it
1830 sp = reg_ctx->GetSP(0);
1835 // Arguments 5 on up are on the stack
1836 const uint32_t arg_byte_size = (bit_width + (8 - 1)) / 8;
1838 if (!exe_ctx.GetProcessRef().ReadScalarIntegerFromMemory(
1839 sp, arg_byte_size, is_signed, value->GetScalar(), error))
1842 sp += arg_byte_size;
1843 // Align up to the next 8 byte boundary if needed
1856 ABIMacOSX_arm64::SetReturnValueObject(lldb::StackFrameSP &frame_sp,
1857 lldb::ValueObjectSP &new_value_sp) {
1859 if (!new_value_sp) {
1860 error.SetErrorString("Empty value object for return value.");
1864 CompilerType return_value_type = new_value_sp->GetCompilerType();
1865 if (!return_value_type) {
1866 error.SetErrorString("Null clang type for return value.");
1870 Thread *thread = frame_sp->GetThread().get();
1872 RegisterContext *reg_ctx = thread->GetRegisterContext().get();
1877 const uint64_t byte_size = new_value_sp->GetData(data, data_error);
1878 if (data_error.Fail()) {
1879 error.SetErrorStringWithFormat(
1880 "Couldn't convert return value to raw data: %s",
1881 data_error.AsCString());
1885 const uint32_t type_flags = return_value_type.GetTypeInfo(nullptr);
1886 if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) {
1887 if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer) {
1888 // Extract the register context so we can read arguments from registers
1889 lldb::offset_t offset = 0;
1890 if (byte_size <= 16) {
1891 const RegisterInfo *x0_info = reg_ctx->GetRegisterInfoByName("x0", 0);
1892 if (byte_size <= 8) {
1893 uint64_t raw_value = data.GetMaxU64(&offset, byte_size);
1895 if (!reg_ctx->WriteRegisterFromUnsigned(x0_info, raw_value))
1896 error.SetErrorString("failed to write register x0");
1898 uint64_t raw_value = data.GetMaxU64(&offset, 8);
1900 if (reg_ctx->WriteRegisterFromUnsigned(x0_info, raw_value)) {
1901 const RegisterInfo *x1_info =
1902 reg_ctx->GetRegisterInfoByName("x1", 0);
1903 raw_value = data.GetMaxU64(&offset, byte_size - offset);
1905 if (!reg_ctx->WriteRegisterFromUnsigned(x1_info, raw_value))
1906 error.SetErrorString("failed to write register x1");
1910 error.SetErrorString("We don't support returning longer than 128 bit "
1911 "integer values at present.");
1913 } else if (type_flags & eTypeIsFloat) {
1914 if (type_flags & eTypeIsComplex) {
1915 // Don't handle complex yet.
1916 error.SetErrorString(
1917 "returning complex float values are not supported");
1919 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);
1922 if (byte_size <= 16) {
1923 if (byte_size <= RegisterValue::GetMaxByteSize()) {
1924 RegisterValue reg_value;
1925 error = reg_value.SetValueFromData(v0_info, data, 0, true);
1926 if (error.Success()) {
1927 if (!reg_ctx->WriteRegister(v0_info, reg_value))
1928 error.SetErrorString("failed to write register v0");
1931 error.SetErrorStringWithFormat(
1932 "returning float values with a byte size of %" PRIu64
1933 " are not supported",
1937 error.SetErrorString("returning float values longer than 128 "
1938 "bits are not supported");
1941 error.SetErrorString("v0 register is not available on this target");
1945 } else if (type_flags & eTypeIsVector) {
1946 if (byte_size > 0) {
1947 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);
1950 if (byte_size <= v0_info->byte_size) {
1951 RegisterValue reg_value;
1952 error = reg_value.SetValueFromData(v0_info, data, 0, true);
1953 if (error.Success()) {
1954 if (!reg_ctx->WriteRegister(v0_info, reg_value))
1955 error.SetErrorString("failed to write register v0");
1962 error.SetErrorString("no registers are available");
1968 bool ABIMacOSX_arm64::CreateFunctionEntryUnwindPlan(UnwindPlan &unwind_plan) {
1969 unwind_plan.Clear();
1970 unwind_plan.SetRegisterKind(eRegisterKindDWARF);
1972 uint32_t lr_reg_num = arm64_dwarf::lr;
1973 uint32_t sp_reg_num = arm64_dwarf::sp;
1974 uint32_t pc_reg_num = arm64_dwarf::pc;
1976 UnwindPlan::RowSP row(new UnwindPlan::Row);
1978 // Our previous Call Frame Address is the stack pointer
1979 row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 0);
1981 // Our previous PC is in the LR
1982 row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true);
1984 unwind_plan.AppendRow(row);
1986 // All other registers are the same.
1988 unwind_plan.SetSourceName("arm64 at-func-entry default");
1989 unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
1994 bool ABIMacOSX_arm64::CreateDefaultUnwindPlan(UnwindPlan &unwind_plan) {
1995 unwind_plan.Clear();
1996 unwind_plan.SetRegisterKind(eRegisterKindDWARF);
1998 uint32_t fp_reg_num = arm64_dwarf::fp;
1999 uint32_t pc_reg_num = arm64_dwarf::pc;
2001 UnwindPlan::RowSP row(new UnwindPlan::Row);
2002 const int32_t ptr_size = 8;
2004 row->GetCFAValue().SetIsRegisterPlusOffset(fp_reg_num, 2 * ptr_size);
2007 row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
2008 row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
2010 unwind_plan.AppendRow(row);
2011 unwind_plan.SetSourceName("arm64-apple-darwin default unwind plan");
2012 unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
2013 unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
2017 // AAPCS64 (Procedure Call Standard for the ARM 64-bit Architecture) says
2018 // registers x19 through x28 and sp are callee preserved. v8-v15 are non-
2019 // volatile (and specifically only the lower 8 bytes of these regs), the rest
2020 // of the fp/SIMD registers are volatile.
2022 // We treat x29 as callee preserved also, else the unwinder won't try to
2023 // retrieve fp saves.
2025 bool ABIMacOSX_arm64::RegisterIsVolatile(const RegisterInfo *reg_info) {
2027 const char *name = reg_info->name;
2029 // Sometimes we'll be called with the "alternate" name for these registers;
2030 // recognize them as non-volatile.
2032 if (name[0] == 'p' && name[1] == 'c') // pc
2034 if (name[0] == 'f' && name[1] == 'p') // fp
2036 if (name[0] == 's' && name[1] == 'p') // sp
2038 if (name[0] == 'l' && name[1] == 'r') // lr
2041 if (name[0] == 'x') {
2042 // Volatile registers: x0-x18, x30 (lr)
2043 // Return false for the non-volatile gpr regs, true for everything else
2048 return false; // x19 is non-volatile
2064 return false; // x20 - 28 are non-volatile
2066 return false; // x29 aka fp treat as non-volatile on Darwin
2070 case '3': // x30 aka lr treat as non-volatile
2077 } else if (name[0] == 'v' || name[0] == 's' || name[0] == 'd') {
2078 // Volatile registers: v0-7, v16-v31
2079 // Return false for non-volatile fp/SIMD regs, true for everything else
2083 return false; // v8-v9 are non-volatile
2092 return false; // v10-v15 are non-volatile
2104 static bool LoadValueFromConsecutiveGPRRegisters(
2105 ExecutionContext &exe_ctx, RegisterContext *reg_ctx,
2106 const CompilerType &value_type,
2107 bool is_return_value, // false => parameter, true => return value
2108 uint32_t &NGRN, // NGRN (see ABI documentation)
2109 uint32_t &NSRN, // NSRN (see ABI documentation)
2110 DataExtractor &data) {
2111 llvm::Optional<uint64_t> byte_size = value_type.GetByteSize(nullptr);
2112 if (!byte_size || *byte_size == 0)
2115 std::unique_ptr<DataBufferHeap> heap_data_up(
2116 new DataBufferHeap(*byte_size, 0));
2117 const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
2120 CompilerType base_type;
2121 const uint32_t homogeneous_count =
2122 value_type.IsHomogeneousAggregate(&base_type);
2123 if (homogeneous_count > 0 && homogeneous_count <= 8) {
2124 // Make sure we have enough registers
2125 if (NSRN < 8 && (8 - NSRN) >= homogeneous_count) {
2128 llvm::Optional<uint64_t> base_byte_size = base_type.GetByteSize(nullptr);
2129 if (!base_byte_size)
2131 uint32_t data_offset = 0;
2133 for (uint32_t i = 0; i < homogeneous_count; ++i) {
2135 ::snprintf(v_name, sizeof(v_name), "v%u", NSRN);
2136 const RegisterInfo *reg_info =
2137 reg_ctx->GetRegisterInfoByName(v_name, 0);
2138 if (reg_info == nullptr)
2141 if (*base_byte_size > reg_info->byte_size)
2144 RegisterValue reg_value;
2146 if (!reg_ctx->ReadRegister(reg_info, reg_value))
2149 // Make sure we have enough room in "heap_data_up"
2150 if ((data_offset + *base_byte_size) <= heap_data_up->GetByteSize()) {
2151 const size_t bytes_copied = reg_value.GetAsMemoryData(
2152 reg_info, heap_data_up->GetBytes() + data_offset, *base_byte_size,
2154 if (bytes_copied != *base_byte_size)
2156 data_offset += bytes_copied;
2161 data.SetByteOrder(byte_order);
2162 data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize());
2163 data.SetData(DataBufferSP(heap_data_up.release()));
2168 const size_t max_reg_byte_size = 16;
2169 if (*byte_size <= max_reg_byte_size) {
2170 size_t bytes_left = *byte_size;
2171 uint32_t data_offset = 0;
2172 while (data_offset < *byte_size) {
2176 uint32_t reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(
2177 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN);
2178 if (reg_num == LLDB_INVALID_REGNUM)
2181 const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoAtIndex(reg_num);
2182 if (reg_info == nullptr)
2185 RegisterValue reg_value;
2187 if (!reg_ctx->ReadRegister(reg_info, reg_value))
2190 const size_t curr_byte_size = std::min<size_t>(8, bytes_left);
2191 const size_t bytes_copied = reg_value.GetAsMemoryData(
2192 reg_info, heap_data_up->GetBytes() + data_offset, curr_byte_size,
2194 if (bytes_copied == 0)
2196 if (bytes_copied >= bytes_left)
2198 data_offset += bytes_copied;
2199 bytes_left -= bytes_copied;
2203 const RegisterInfo *reg_info = nullptr;
2204 if (is_return_value) {
2205 // We are assuming we are decoding this immediately after returning from
2206 // a function call and that the address of the structure is in x8
2207 reg_info = reg_ctx->GetRegisterInfoByName("x8", 0);
2209 // We are assuming we are stopped at the first instruction in a function
2210 // and that the ABI is being respected so all parameters appear where
2211 // they should be (functions with no external linkage can legally violate
2216 uint32_t reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(
2217 eRegisterKindGeneric, LLDB_REGNUM_GENERIC_ARG1 + NGRN);
2218 if (reg_num == LLDB_INVALID_REGNUM)
2220 reg_info = reg_ctx->GetRegisterInfoAtIndex(reg_num);
2221 if (reg_info == nullptr)
2226 if (reg_info == nullptr)
2229 const lldb::addr_t value_addr =
2230 reg_ctx->ReadRegisterAsUnsigned(reg_info, LLDB_INVALID_ADDRESS);
2232 if (value_addr == LLDB_INVALID_ADDRESS)
2235 if (exe_ctx.GetProcessRef().ReadMemory(
2236 value_addr, heap_data_up->GetBytes(), heap_data_up->GetByteSize(),
2237 error) != heap_data_up->GetByteSize()) {
2242 data.SetByteOrder(byte_order);
2243 data.SetAddressByteSize(exe_ctx.GetProcessRef().GetAddressByteSize());
2244 data.SetData(DataBufferSP(heap_data_up.release()));
2248 ValueObjectSP ABIMacOSX_arm64::GetReturnValueObjectImpl(
2249 Thread &thread, CompilerType &return_compiler_type) const {
2250 ValueObjectSP return_valobj_sp;
2253 ExecutionContext exe_ctx(thread.shared_from_this());
2254 if (exe_ctx.GetTargetPtr() == nullptr || exe_ctx.GetProcessPtr() == nullptr)
2255 return return_valobj_sp;
2257 // value.SetContext (Value::eContextTypeClangType, return_compiler_type);
2258 value.SetCompilerType(return_compiler_type);
2260 RegisterContext *reg_ctx = thread.GetRegisterContext().get();
2262 return return_valobj_sp;
2264 llvm::Optional<uint64_t> byte_size =
2265 return_compiler_type.GetByteSize(nullptr);
2267 return return_valobj_sp;
2269 const uint32_t type_flags = return_compiler_type.GetTypeInfo(nullptr);
2270 if (type_flags & eTypeIsScalar || type_flags & eTypeIsPointer) {
2271 value.SetValueType(Value::eValueTypeScalar);
2273 bool success = false;
2274 if (type_flags & eTypeIsInteger || type_flags & eTypeIsPointer) {
2275 // Extract the register context so we can read arguments from registers
2276 if (*byte_size <= 8) {
2277 const RegisterInfo *x0_reg_info =
2278 reg_ctx->GetRegisterInfoByName("x0", 0);
2280 uint64_t raw_value =
2281 thread.GetRegisterContext()->ReadRegisterAsUnsigned(x0_reg_info,
2283 const bool is_signed = (type_flags & eTypeIsSigned) != 0;
2284 switch (*byte_size) {
2287 case 16: // uint128_t
2288 // In register x0 and x1
2290 const RegisterInfo *x1_reg_info =
2291 reg_ctx->GetRegisterInfoByName("x1", 0);
2295 x0_reg_info->byte_size + x1_reg_info->byte_size) {
2296 std::unique_ptr<DataBufferHeap> heap_data_up(
2297 new DataBufferHeap(*byte_size, 0));
2298 const ByteOrder byte_order =
2299 exe_ctx.GetProcessRef().GetByteOrder();
2300 RegisterValue x0_reg_value;
2301 RegisterValue x1_reg_value;
2302 if (reg_ctx->ReadRegister(x0_reg_info, x0_reg_value) &&
2303 reg_ctx->ReadRegister(x1_reg_info, x1_reg_value)) {
2305 if (x0_reg_value.GetAsMemoryData(
2306 x0_reg_info, heap_data_up->GetBytes() + 0, 8,
2307 byte_order, error) &&
2308 x1_reg_value.GetAsMemoryData(
2309 x1_reg_info, heap_data_up->GetBytes() + 8, 8,
2310 byte_order, error)) {
2312 DataBufferSP(heap_data_up.release()), byte_order,
2313 exe_ctx.GetProcessRef().GetAddressByteSize());
2315 return_valobj_sp = ValueObjectConstResult::Create(
2316 &thread, return_compiler_type, ConstString(""), data);
2317 return return_valobj_sp;
2324 case sizeof(uint64_t):
2326 value.GetScalar() = (int64_t)(raw_value);
2328 value.GetScalar() = (uint64_t)(raw_value);
2332 case sizeof(uint32_t):
2334 value.GetScalar() = (int32_t)(raw_value & UINT32_MAX);
2336 value.GetScalar() = (uint32_t)(raw_value & UINT32_MAX);
2340 case sizeof(uint16_t):
2342 value.GetScalar() = (int16_t)(raw_value & UINT16_MAX);
2344 value.GetScalar() = (uint16_t)(raw_value & UINT16_MAX);
2348 case sizeof(uint8_t):
2350 value.GetScalar() = (int8_t)(raw_value & UINT8_MAX);
2352 value.GetScalar() = (uint8_t)(raw_value & UINT8_MAX);
2358 } else if (type_flags & eTypeIsFloat) {
2359 if (type_flags & eTypeIsComplex) {
2360 // Don't handle complex yet.
2362 if (*byte_size <= sizeof(long double)) {
2363 const RegisterInfo *v0_reg_info =
2364 reg_ctx->GetRegisterInfoByName("v0", 0);
2365 RegisterValue v0_value;
2366 if (reg_ctx->ReadRegister(v0_reg_info, v0_value)) {
2368 if (v0_value.GetData(data)) {
2369 lldb::offset_t offset = 0;
2370 if (*byte_size == sizeof(float)) {
2371 value.GetScalar() = data.GetFloat(&offset);
2373 } else if (*byte_size == sizeof(double)) {
2374 value.GetScalar() = data.GetDouble(&offset);
2376 } else if (*byte_size == sizeof(long double)) {
2377 value.GetScalar() = data.GetLongDouble(&offset);
2387 return_valobj_sp = ValueObjectConstResult::Create(
2388 thread.GetStackFrameAtIndex(0).get(), value, ConstString(""));
2389 } else if (type_flags & eTypeIsVector) {
2390 if (*byte_size > 0) {
2392 const RegisterInfo *v0_info = reg_ctx->GetRegisterInfoByName("v0", 0);
2395 if (*byte_size <= v0_info->byte_size) {
2396 std::unique_ptr<DataBufferHeap> heap_data_up(
2397 new DataBufferHeap(*byte_size, 0));
2398 const ByteOrder byte_order = exe_ctx.GetProcessRef().GetByteOrder();
2399 RegisterValue reg_value;
2400 if (reg_ctx->ReadRegister(v0_info, reg_value)) {
2402 if (reg_value.GetAsMemoryData(v0_info, heap_data_up->GetBytes(),
2403 heap_data_up->GetByteSize(),
2404 byte_order, error)) {
2405 DataExtractor data(DataBufferSP(heap_data_up.release()),
2407 exe_ctx.GetProcessRef().GetAddressByteSize());
2408 return_valobj_sp = ValueObjectConstResult::Create(
2409 &thread, return_compiler_type, ConstString(""), data);
2415 } else if (type_flags & eTypeIsStructUnion || type_flags & eTypeIsClass) {
2418 uint32_t NGRN = 0; // Search ABI docs for NGRN
2419 uint32_t NSRN = 0; // Search ABI docs for NSRN
2420 const bool is_return_value = true;
2421 if (LoadValueFromConsecutiveGPRRegisters(
2422 exe_ctx, reg_ctx, return_compiler_type, is_return_value, NGRN, NSRN,
2424 return_valobj_sp = ValueObjectConstResult::Create(
2425 &thread, return_compiler_type, ConstString(""), data);
2428 return return_valobj_sp;
2431 void ABIMacOSX_arm64::Initialize() {
2432 PluginManager::RegisterPlugin(GetPluginNameStatic(), pluginDesc,
2436 void ABIMacOSX_arm64::Terminate() {
2437 PluginManager::UnregisterPlugin(CreateInstance);
2440 // PluginInterface protocol
2442 ConstString ABIMacOSX_arm64::GetPluginNameStatic() {
2443 static ConstString g_plugin_name("ABIMacOSX_arm64");
2444 return g_plugin_name;
2447 uint32_t ABIMacOSX_arm64::GetPluginVersion() { return 1; }