LLVM 20.0.0git
Dwarf.cpp
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1//===-- llvm/BinaryFormat/Dwarf.cpp - Dwarf Framework ------------*- C++-*-===//
2//
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
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains support for generic dwarf information.
10//
11//===----------------------------------------------------------------------===//
12
17
18using namespace llvm;
19using namespace dwarf;
20
22 switch (Tag) {
23 default:
24 return StringRef();
25#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR, KIND) \
26 case DW_TAG_##NAME: \
27 return "DW_TAG_" #NAME;
28#include "llvm/BinaryFormat/Dwarf.def"
29 }
30}
31
34#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR, KIND) \
35 .Case("DW_TAG_" #NAME, DW_TAG_##NAME)
36#include "llvm/BinaryFormat/Dwarf.def"
38}
39
41 switch (Tag) {
42 default:
43 return 0;
44#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR, KIND) \
45 case DW_TAG_##NAME: \
46 return VERSION;
47#include "llvm/BinaryFormat/Dwarf.def"
48 }
49}
50
52 switch (Tag) {
53 default:
54 return 0;
55#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR, KIND) \
56 case DW_TAG_##NAME: \
57 return DWARF_VENDOR_##VENDOR;
58#include "llvm/BinaryFormat/Dwarf.def"
59 }
60}
61
63 switch (Children) {
64 case DW_CHILDREN_no:
65 return "DW_CHILDREN_no";
66 case DW_CHILDREN_yes:
67 return "DW_CHILDREN_yes";
68 }
69 return StringRef();
70}
71
73 switch (Attribute) {
74 default:
75 return StringRef();
76#define HANDLE_DW_AT(ID, NAME, VERSION, VENDOR) \
77 case DW_AT_##NAME: \
78 return "DW_AT_" #NAME;
79#include "llvm/BinaryFormat/Dwarf.def"
80 }
81}
82
84 switch (Attribute) {
85 default:
86 return 0;
87#define HANDLE_DW_AT(ID, NAME, VERSION, VENDOR) \
88 case DW_AT_##NAME: \
89 return VERSION;
90#include "llvm/BinaryFormat/Dwarf.def"
91 }
92}
93
95 switch (Attribute) {
96 default:
97 return 0;
98#define HANDLE_DW_AT(ID, NAME, VERSION, VENDOR) \
99 case DW_AT_##NAME: \
100 return DWARF_VENDOR_##VENDOR;
101#include "llvm/BinaryFormat/Dwarf.def"
102 }
103}
104
106 switch (Encoding) {
107 default:
108 return StringRef();
109#define HANDLE_DW_FORM(ID, NAME, VERSION, VENDOR) \
110 case DW_FORM_##NAME: \
111 return "DW_FORM_" #NAME;
112#include "llvm/BinaryFormat/Dwarf.def"
113 }
114}
115
117 switch (Form) {
118 default:
119 return 0;
120#define HANDLE_DW_FORM(ID, NAME, VERSION, VENDOR) \
121 case DW_FORM_##NAME: \
122 return VERSION;
123#include "llvm/BinaryFormat/Dwarf.def"
124 }
125}
126
128 switch (Form) {
129 default:
130 return 0;
131#define HANDLE_DW_FORM(ID, NAME, VERSION, VENDOR) \
132 case DW_FORM_##NAME: \
133 return DWARF_VENDOR_##VENDOR;
134#include "llvm/BinaryFormat/Dwarf.def"
135 }
136}
137
139 switch (Encoding) {
140 default:
141 return StringRef();
142#define HANDLE_DW_OP(ID, NAME, OPERANDS, ARITY, VERSION, VENDOR) \
143 case DW_OP_##NAME: \
144 return "DW_OP_" #NAME;
145#include "llvm/BinaryFormat/Dwarf.def"
147 return "DW_OP_LLVM_convert";
149 return "DW_OP_LLVM_fragment";
151 return "DW_OP_LLVM_tag_offset";
153 return "DW_OP_LLVM_entry_value";
155 return "DW_OP_LLVM_implicit_pointer";
156 case DW_OP_LLVM_arg:
157 return "DW_OP_LLVM_arg";
159 return "DW_OP_LLVM_extract_bits_sext";
161 return "DW_OP_LLVM_extract_bits_zext";
162 }
163}
164
167#define HANDLE_DW_OP(ID, NAME, OPERANDS, ARITY, VERSION, VENDOR) \
168 .Case("DW_OP_" #NAME, DW_OP_##NAME)
169#include "llvm/BinaryFormat/Dwarf.def"
170 .Case("DW_OP_LLVM_convert", DW_OP_LLVM_convert)
171 .Case("DW_OP_LLVM_fragment", DW_OP_LLVM_fragment)
172 .Case("DW_OP_LLVM_tag_offset", DW_OP_LLVM_tag_offset)
173 .Case("DW_OP_LLVM_entry_value", DW_OP_LLVM_entry_value)
174 .Case("DW_OP_LLVM_implicit_pointer", DW_OP_LLVM_implicit_pointer)
175 .Case("DW_OP_LLVM_arg", DW_OP_LLVM_arg)
176 .Case("DW_OP_LLVM_extract_bits_sext", DW_OP_LLVM_extract_bits_sext)
177 .Case("DW_OP_LLVM_extract_bits_zext", DW_OP_LLVM_extract_bits_zext)
178 .Default(0);
179}
180
182 switch (Encoding) {
183 default:
184 llvm_unreachable("unhandled DWARF operation with LLVM user op");
185#define HANDLE_DW_OP_LLVM_USEROP(ID, NAME) \
186 case DW_OP_LLVM_##NAME: \
187 return "DW_OP_LLVM_" #NAME;
188#include "llvm/BinaryFormat/Dwarf.def"
189 }
190}
191
192static unsigned
195#define HANDLE_DW_OP_LLVM_USEROP(ID, NAME) .Case(#NAME, DW_OP_LLVM_##NAME)
196#include "llvm/BinaryFormat/Dwarf.def"
197 .Default(0);
198 assert(E && "unhandled DWARF operation string with LLVM user op");
199 return E;
200}
201
203 unsigned SubOpEncoding) {
204 assert(OpEncoding == DW_OP_LLVM_user);
205 return LlvmUserOperationEncodingString(SubOpEncoding);
206}
207
208unsigned
211 assert(OpEncoding == DW_OP_LLVM_user);
213}
214
216 switch (Op) {
217 default:
218 return 0;
219#define HANDLE_DW_OP(ID, NAME, OPERANDS, ARITY, VERSION, VENDOR) \
220 case DW_OP_##NAME: \
221 return VERSION;
222#include "llvm/BinaryFormat/Dwarf.def"
223 }
224}
225
227 switch (Op) {
228 default:
229 return std::nullopt;
230#define HANDLE_DW_OP(ID, NAME, OPERANDS, ARITY, VERSION, VENDOR) \
231 case DW_OP_##NAME: \
232 if (OPERANDS == -1) \
233 return std::nullopt; \
234 return OPERANDS;
235#include "llvm/BinaryFormat/Dwarf.def"
236 }
237}
238
240 switch (Op) {
241 default:
242 return std::nullopt;
243#define HANDLE_DW_OP(ID, NAME, OPERANDS, ARITY, VERSION, VENDOR) \
244 case DW_OP_##NAME: \
245 if (ARITY == -1) \
246 return std::nullopt; \
247 return ARITY;
248#include "llvm/BinaryFormat/Dwarf.def"
249 }
250}
251
253 switch (Op) {
254 default:
255 return 0;
256#define HANDLE_DW_OP(ID, NAME, OPERANDS, ARITY, VERSION, VENDOR) \
257 case DW_OP_##NAME: \
258 return DWARF_VENDOR_##VENDOR;
259#include "llvm/BinaryFormat/Dwarf.def"
260 }
261}
262
264 switch (Encoding) {
265 default:
266 return StringRef();
267#define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
268 case DW_ATE_##NAME: \
269 return "DW_ATE_" #NAME;
270#include "llvm/BinaryFormat/Dwarf.def"
271 }
272}
273
275 return StringSwitch<unsigned>(EncodingString)
276#define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
277 .Case("DW_ATE_" #NAME, DW_ATE_##NAME)
278#include "llvm/BinaryFormat/Dwarf.def"
279 .Default(0);
280}
281
283 switch (ATE) {
284 default:
285 return 0;
286#define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
287 case DW_ATE_##NAME: \
288 return VERSION;
289#include "llvm/BinaryFormat/Dwarf.def"
290 }
291}
292
294 switch (ATE) {
295 default:
296 return 0;
297#define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
298 case DW_ATE_##NAME: \
299 return DWARF_VENDOR_##VENDOR;
300#include "llvm/BinaryFormat/Dwarf.def"
301 }
302}
303
305 switch (Sign) {
306 case DW_DS_unsigned:
307 return "DW_DS_unsigned";
309 return "DW_DS_leading_overpunch";
311 return "DW_DS_trailing_overpunch";
313 return "DW_DS_leading_separate";
315 return "DW_DS_trailing_separate";
316 }
317 return StringRef();
318}
319
321 switch (Endian) {
322 case DW_END_default:
323 return "DW_END_default";
324 case DW_END_big:
325 return "DW_END_big";
326 case DW_END_little:
327 return "DW_END_little";
328 case DW_END_lo_user:
329 return "DW_END_lo_user";
330 case DW_END_hi_user:
331 return "DW_END_hi_user";
332 }
333 return StringRef();
334}
335
337 switch (Access) {
338 // Accessibility codes
339 case DW_ACCESS_public:
340 return "DW_ACCESS_public";
342 return "DW_ACCESS_protected";
344 return "DW_ACCESS_private";
345 }
346 return StringRef();
347}
348
349StringRef llvm::dwarf::DefaultedMemberString(unsigned DefaultedEncodings) {
350 switch (DefaultedEncodings) {
351 // Defaulted Member Encodings codes
352 case DW_DEFAULTED_no:
353 return "DW_DEFAULTED_no";
354 case DW_DEFAULTED_in_class:
355 return "DW_DEFAULTED_in_class";
356 case DW_DEFAULTED_out_of_class:
357 return "DW_DEFAULTED_out_of_class";
358 }
359 return StringRef();
360}
361
363 switch (Visibility) {
364 case DW_VIS_local:
365 return "DW_VIS_local";
366 case DW_VIS_exported:
367 return "DW_VIS_exported";
368 case DW_VIS_qualified:
369 return "DW_VIS_qualified";
370 }
371 return StringRef();
372}
373
375 switch (Virtuality) {
376 default:
377 return StringRef();
378#define HANDLE_DW_VIRTUALITY(ID, NAME) \
379 case DW_VIRTUALITY_##NAME: \
380 return "DW_VIRTUALITY_" #NAME;
381#include "llvm/BinaryFormat/Dwarf.def"
382 }
383}
384
387#define HANDLE_DW_VIRTUALITY(ID, NAME) \
388 .Case("DW_VIRTUALITY_" #NAME, DW_VIRTUALITY_##NAME)
389#include "llvm/BinaryFormat/Dwarf.def"
391}
392
394 switch (Language) {
395 default:
396 return StringRef();
397#define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
398 case DW_LANG_##NAME: \
399 return "DW_LANG_" #NAME;
400#include "llvm/BinaryFormat/Dwarf.def"
401 }
402}
403
406#define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
407 .Case("DW_LANG_" #NAME, DW_LANG_##NAME)
408#include "llvm/BinaryFormat/Dwarf.def"
409 .Default(0);
410}
411
413 switch (Lang) {
414 default:
415 return 0;
416#define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
417 case DW_LANG_##NAME: \
418 return VERSION;
419#include "llvm/BinaryFormat/Dwarf.def"
420 }
421}
422
424 switch (Lang) {
425 default:
426 return 0;
427#define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
428 case DW_LANG_##NAME: \
429 return DWARF_VENDOR_##VENDOR;
430#include "llvm/BinaryFormat/Dwarf.def"
431 }
432}
433
434std::optional<unsigned>
436 switch (Lang) {
437 default:
438 return std::nullopt;
439#define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
440 case DW_LANG_##NAME: \
441 return LOWER_BOUND;
442#include "llvm/BinaryFormat/Dwarf.def"
443 }
444}
445
447 switch (lname) {
448#define HANDLE_DW_LNAME(ID, NAME, DESC, LOWER_BOUND) \
449 case DW_LNAME_##NAME: \
450 return DESC;
451#include "llvm/BinaryFormat/Dwarf.def"
452 }
453 return "Unknown";
454}
455
457 switch (Case) {
459 return "DW_ID_case_sensitive";
460 case DW_ID_up_case:
461 return "DW_ID_up_case";
462 case DW_ID_down_case:
463 return "DW_ID_down_case";
465 return "DW_ID_case_insensitive";
466 }
467 return StringRef();
468}
469
471 switch (CC) {
472 default:
473 return StringRef();
474#define HANDLE_DW_CC(ID, NAME) \
475 case DW_CC_##NAME: \
476 return "DW_CC_" #NAME;
477#include "llvm/BinaryFormat/Dwarf.def"
478 }
479}
480
482 return StringSwitch<unsigned>(CCString)
483#define HANDLE_DW_CC(ID, NAME) .Case("DW_CC_" #NAME, DW_CC_##NAME)
484#include "llvm/BinaryFormat/Dwarf.def"
485 .Default(0);
486}
487
489 switch (Code) {
491 return "DW_INL_not_inlined";
492 case DW_INL_inlined:
493 return "DW_INL_inlined";
495 return "DW_INL_declared_not_inlined";
497 return "DW_INL_declared_inlined";
498 }
499 return StringRef();
500}
501
503 switch (Order) {
504 case DW_ORD_row_major:
505 return "DW_ORD_row_major";
506 case DW_ORD_col_major:
507 return "DW_ORD_col_major";
508 }
509 return StringRef();
510}
511
513 switch (Standard) {
514 default:
515 return StringRef();
516#define HANDLE_DW_LNS(ID, NAME) \
517 case DW_LNS_##NAME: \
518 return "DW_LNS_" #NAME;
519#include "llvm/BinaryFormat/Dwarf.def"
520 }
521}
522
524 switch (Encoding) {
525 default:
526 return StringRef();
527#define HANDLE_DW_LNE(ID, NAME) \
528 case DW_LNE_##NAME: \
529 return "DW_LNE_" #NAME;
530#include "llvm/BinaryFormat/Dwarf.def"
531 }
532}
533
535 switch (Encoding) {
536 // Macinfo Type Encodings
538 return "DW_MACINFO_define";
539 case DW_MACINFO_undef:
540 return "DW_MACINFO_undef";
542 return "DW_MACINFO_start_file";
544 return "DW_MACINFO_end_file";
546 return "DW_MACINFO_vendor_ext";
548 return "DW_MACINFO_invalid";
549 }
550 return StringRef();
551}
552
555 .Case("DW_MACINFO_define", DW_MACINFO_define)
556 .Case("DW_MACINFO_undef", DW_MACINFO_undef)
557 .Case("DW_MACINFO_start_file", DW_MACINFO_start_file)
558 .Case("DW_MACINFO_end_file", DW_MACINFO_end_file)
559 .Case("DW_MACINFO_vendor_ext", DW_MACINFO_vendor_ext)
561}
562
564 switch (Encoding) {
565 default:
566 return StringRef();
567#define HANDLE_DW_MACRO(ID, NAME) \
568 case DW_MACRO_##NAME: \
569 return "DW_MACRO_" #NAME;
570#include "llvm/BinaryFormat/Dwarf.def"
571 }
572}
573
575 switch (Encoding) {
576 default:
577 return StringRef();
578#define HANDLE_DW_MACRO_GNU(ID, NAME) \
579 case DW_MACRO_GNU_##NAME: \
580 return "DW_MACRO_GNU_" #NAME;
581#include "llvm/BinaryFormat/Dwarf.def"
582 }
583}
584
587#define HANDLE_DW_MACRO(ID, NAME) .Case("DW_MACRO_" #NAME, ID)
588#include "llvm/BinaryFormat/Dwarf.def"
590}
592 switch (Encoding) {
593 default:
594 return StringRef();
595#define HANDLE_DW_RLE(ID, NAME) \
596 case DW_RLE_##NAME: \
597 return "DW_RLE_" #NAME;
598#include "llvm/BinaryFormat/Dwarf.def"
599 }
600}
601
603 switch (Encoding) {
604 default:
605 return StringRef();
606#define HANDLE_DW_LLE(ID, NAME) \
607 case DW_LLE_##NAME: \
608 return "DW_LLE_" #NAME;
609#include "llvm/BinaryFormat/Dwarf.def"
610 }
611}
612
614 Triple::ArchType Arch) {
616#define SELECT_AARCH64 (Arch == llvm::Triple::aarch64_be || Arch == llvm::Triple::aarch64)
617#define SELECT_MIPS64 Arch == llvm::Triple::mips64
618#define SELECT_SPARC (Arch == llvm::Triple::sparc || Arch == llvm::Triple::sparcv9)
619#define SELECT_X86 (Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64)
620#define HANDLE_DW_CFA(ID, NAME)
621#define HANDLE_DW_CFA_PRED(ID, NAME, PRED) \
622 if (ID == Encoding && PRED) \
623 return "DW_CFA_" #NAME;
624#include "llvm/BinaryFormat/Dwarf.def"
625
626 switch (Encoding) {
627 default:
628 return StringRef();
629#define HANDLE_DW_CFA_PRED(ID, NAME, PRED)
630#define HANDLE_DW_CFA(ID, NAME) \
631 case DW_CFA_##NAME: \
632 return "DW_CFA_" #NAME;
633#include "llvm/BinaryFormat/Dwarf.def"
634
635#undef SELECT_X86
636#undef SELECT_SPARC
637#undef SELECT_MIPS64
638#undef SELECT_AARCH64
639 }
640}
641
643 switch (Prop) {
644 default:
645 return StringRef();
646#define HANDLE_DW_APPLE_PROPERTY(ID, NAME) \
647 case DW_APPLE_PROPERTY_##NAME: \
648 return "DW_APPLE_PROPERTY_" #NAME;
649#include "llvm/BinaryFormat/Dwarf.def"
650 }
651}
652
654 switch (UT) {
655 default:
656 return StringRef();
657#define HANDLE_DW_UT(ID, NAME) \
658 case DW_UT_##NAME: \
659 return "DW_UT_" #NAME;
660#include "llvm/BinaryFormat/Dwarf.def"
661 }
662}
663
665 switch (AT) {
667 return "DW_ATOM_null";
669 return "DW_ATOM_die_offset";
671 return "DW_ATOM_cu_offset";
672 case DW_ATOM_die_tag:
673 return "DW_ATOM_die_tag";
676 return "DW_ATOM_type_flags";
678 return "DW_ATOM_qual_name_hash";
679 }
680 return StringRef();
681}
682
684 switch (Kind) {
685 case GIEK_NONE:
686 return "NONE";
687 case GIEK_TYPE:
688 return "TYPE";
689 case GIEK_VARIABLE:
690 return "VARIABLE";
691 case GIEK_FUNCTION:
692 return "FUNCTION";
693 case GIEK_OTHER:
694 return "OTHER";
695 case GIEK_UNUSED5:
696 return "UNUSED5";
697 case GIEK_UNUSED6:
698 return "UNUSED6";
699 case GIEK_UNUSED7:
700 return "UNUSED7";
701 }
702 llvm_unreachable("Unknown GDBIndexEntryKind value");
703}
704
707 switch (Linkage) {
708 case GIEL_EXTERNAL:
709 return "EXTERNAL";
710 case GIEL_STATIC:
711 return "STATIC";
712 }
713 llvm_unreachable("Unknown GDBIndexEntryLinkage value");
714}
715
717 switch (Attr) {
718 case DW_AT_accessibility:
719 return AccessibilityString(Val);
720 case DW_AT_virtuality:
721 return VirtualityString(Val);
722 case DW_AT_language:
723 return LanguageString(Val);
724 case DW_AT_encoding:
725 return AttributeEncodingString(Val);
726 case DW_AT_decimal_sign:
727 return DecimalSignString(Val);
728 case DW_AT_endianity:
729 return EndianityString(Val);
730 case DW_AT_visibility:
731 return VisibilityString(Val);
732 case DW_AT_identifier_case:
733 return CaseString(Val);
734 case DW_AT_calling_convention:
735 return ConventionString(Val);
736 case DW_AT_inline:
737 return InlineCodeString(Val);
738 case DW_AT_ordering:
739 return ArrayOrderString(Val);
740 case DW_AT_APPLE_runtime_class:
741 return LanguageString(Val);
742 case DW_AT_defaulted:
743 return DefaultedMemberString(Val);
744 }
745
746 return StringRef();
747}
748
750 switch (Atom) {
751 case DW_ATOM_null:
752 return "NULL";
753 case DW_ATOM_die_tag:
754 return TagString(Val);
755 }
756
757 return StringRef();
758}
759
761 switch (Idx) {
762 default:
763 return StringRef();
764#define HANDLE_DW_IDX(ID, NAME) \
765 case DW_IDX_##NAME: \
766 return "DW_IDX_" #NAME;
767#include "llvm/BinaryFormat/Dwarf.def"
768 }
769}
770
772 FormParams Params) {
773 switch (Form) {
774 case DW_FORM_addr:
775 if (Params)
776 return Params.AddrSize;
777 return std::nullopt;
778
779 case DW_FORM_block: // ULEB128 length L followed by L bytes.
780 case DW_FORM_block1: // 1 byte length L followed by L bytes.
781 case DW_FORM_block2: // 2 byte length L followed by L bytes.
782 case DW_FORM_block4: // 4 byte length L followed by L bytes.
783 case DW_FORM_string: // C-string with null terminator.
784 case DW_FORM_sdata: // SLEB128.
785 case DW_FORM_udata: // ULEB128.
786 case DW_FORM_ref_udata: // ULEB128.
787 case DW_FORM_indirect: // ULEB128.
788 case DW_FORM_exprloc: // ULEB128 length L followed by L bytes.
789 case DW_FORM_strx: // ULEB128.
790 case DW_FORM_addrx: // ULEB128.
791 case DW_FORM_loclistx: // ULEB128.
792 case DW_FORM_rnglistx: // ULEB128.
793 case DW_FORM_GNU_addr_index: // ULEB128.
794 case DW_FORM_GNU_str_index: // ULEB128.
795 return std::nullopt;
796
797 case DW_FORM_ref_addr:
798 if (Params)
799 return Params.getRefAddrByteSize();
800 return std::nullopt;
801
802 case DW_FORM_flag:
803 case DW_FORM_data1:
804 case DW_FORM_ref1:
805 case DW_FORM_strx1:
806 case DW_FORM_addrx1:
807 return 1;
808
809 case DW_FORM_data2:
810 case DW_FORM_ref2:
811 case DW_FORM_strx2:
812 case DW_FORM_addrx2:
813 return 2;
814
815 case DW_FORM_strx3:
816 case DW_FORM_addrx3:
817 return 3;
818
819 case DW_FORM_data4:
820 case DW_FORM_ref4:
821 case DW_FORM_ref_sup4:
822 case DW_FORM_strx4:
823 case DW_FORM_addrx4:
824 return 4;
825
826 case DW_FORM_strp:
827 case DW_FORM_GNU_ref_alt:
828 case DW_FORM_GNU_strp_alt:
829 case DW_FORM_line_strp:
830 case DW_FORM_sec_offset:
831 case DW_FORM_strp_sup:
832 if (Params)
833 return Params.getDwarfOffsetByteSize();
834 return std::nullopt;
835
836 case DW_FORM_data8:
837 case DW_FORM_ref8:
838 case DW_FORM_ref_sig8:
839 case DW_FORM_ref_sup8:
840 return 8;
841
842 case DW_FORM_flag_present:
843 return 0;
844
845 case DW_FORM_data16:
846 return 16;
847
848 case DW_FORM_implicit_const:
849 // The implicit value is stored in the abbreviation as a SLEB128, and
850 // there no data in debug info.
851 return 0;
852
853 default:
854 break;
855 }
856 return std::nullopt;
857}
858
860 bool ExtensionsOk) {
862 unsigned FV = FormVersion(F);
863 return FV > 0 && FV <= Version;
864 }
865 return ExtensionsOk;
866}
867
869 switch (Format) {
870 case DWARF32:
871 return "DWARF32";
872 case DWARF64:
873 return "DWARF64";
874 }
875 return StringRef();
876}
877
879 return FormatString(IsDWARF64 ? DWARF64 : DWARF32);
880}
881
883 switch (RLE) {
884 default:
885 return StringRef();
886#define HANDLE_DW_RLE(ID, NAME) \
887 case DW_RLE_##NAME: \
888 return "DW_RLE_" #NAME;
889#include "llvm/BinaryFormat/Dwarf.def"
890 }
891}
892
Returns the sub type a function will return at a given Idx Should correspond to the result type of an ExtractValue instruction executed with just that one unsigned Idx
static unsigned getLlvmUserOperationEncoding(StringRef LlvmUserOperationEncodingString)
Definition: Dwarf.cpp:193
static StringRef LlvmUserOperationEncodingString(unsigned Encoding)
Definition: Dwarf.cpp:181
This file contains constants used for implementing Dwarf debug support.
#define F(x, y, z)
Definition: MD5.cpp:55
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
endianness Endian
This file implements the StringSwitch template, which mimics a switch() statement whose cases are str...
This class represents an Operation in the Expression.
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
A switch()-like statement whose cases are string literals.
Definition: StringSwitch.h:44
StringSwitch & Case(StringLiteral S, T Value)
Definition: StringSwitch.h:69
R Default(T Value)
Definition: StringSwitch.h:182
@ UnknownArch
Definition: Triple.h:47
StringRef LNExtendedString(unsigned Encoding)
Definition: Dwarf.cpp:523
StringRef RangeListEncodingString(unsigned Encoding)
Definition: Dwarf.cpp:591
StringRef CaseString(unsigned Case)
Definition: Dwarf.cpp:456
StringRef VisibilityString(unsigned Visibility)
Definition: Dwarf.cpp:362
StringRef GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage)
Definition: Dwarf.cpp:706
StringRef AttributeString(unsigned Attribute)
Definition: Dwarf.cpp:72
StringRef CallFrameString(unsigned Encoding, Triple::ArchType Arch)
Definition: Dwarf.cpp:613
StringRef FormEncodingString(unsigned Encoding)
Definition: Dwarf.cpp:105
StringRef ArrayOrderString(unsigned Order)
Definition: Dwarf.cpp:502
StringRef MacroString(unsigned Encoding)
Definition: Dwarf.cpp:563
StringRef LocListEncodingString(unsigned Encoding)
Definition: Dwarf.cpp:602
StringRef IndexString(unsigned Idx)
Definition: Dwarf.cpp:760
StringRef RLEString(unsigned RLE)
Definition: Dwarf.cpp:882
StringRef SubOperationEncodingString(unsigned OpEncoding, unsigned SubOpEncoding)
Definition: Dwarf.cpp:202
StringRef LanguageString(unsigned Language)
Definition: Dwarf.cpp:393
StringRef DecimalSignString(unsigned Sign)
Definition: Dwarf.cpp:304
StringRef VirtualityString(unsigned Virtuality)
Definition: Dwarf.cpp:374
StringRef AttributeEncodingString(unsigned Encoding)
Definition: Dwarf.cpp:263
StringRef ChildrenString(unsigned Children)
Definition: Dwarf.cpp:62
StringRef ApplePropertyString(unsigned)
Definition: Dwarf.cpp:642
StringRef AtomTypeString(unsigned Atom)
Definition: Dwarf.cpp:664
StringRef FormatString(DwarfFormat Format)
Definition: Dwarf.cpp:868
StringRef GnuMacroString(unsigned Encoding)
Definition: Dwarf.cpp:574
StringRef EndianityString(unsigned Endian)
Definition: Dwarf.cpp:320
StringRef ConventionString(unsigned Convention)
Definition: Dwarf.cpp:470
StringRef MacinfoString(unsigned Encoding)
Definition: Dwarf.cpp:534
StringRef OperationEncodingString(unsigned Encoding)
Definition: Dwarf.cpp:138
StringRef UnitTypeString(unsigned)
Definition: Dwarf.cpp:653
StringRef InlineCodeString(unsigned Code)
Definition: Dwarf.cpp:488
StringRef GDBIndexEntryKindString(GDBIndexEntryKind Kind)
Definition: Dwarf.cpp:683
StringRef TagString(unsigned Tag)
Definition: Dwarf.cpp:21
StringRef LNStandardString(unsigned Standard)
Definition: Dwarf.cpp:512
StringRef AccessibilityString(unsigned Access)
Definition: Dwarf.cpp:336
StringRef DefaultedMemberString(unsigned DefaultedEncodings)
Definition: Dwarf.cpp:349
unsigned getSubOperationEncoding(unsigned OpEncoding, StringRef SubOperationEncodingString)
Definition: Dwarf.cpp:209
unsigned getOperationEncoding(StringRef OperationEncodingString)
Definition: Dwarf.cpp:165
unsigned getAttributeEncoding(StringRef EncodingString)
Definition: Dwarf.cpp:274
unsigned getTag(StringRef TagString)
Definition: Dwarf.cpp:32
unsigned getCallingConvention(StringRef LanguageString)
Definition: Dwarf.cpp:481
unsigned getLanguage(StringRef LanguageString)
Definition: Dwarf.cpp:404
unsigned getVirtuality(StringRef VirtualityString)
Definition: Dwarf.cpp:385
unsigned getMacro(StringRef MacroString)
Definition: Dwarf.cpp:585
unsigned getMacinfo(StringRef MacinfoString)
Definition: Dwarf.cpp:553
unsigned AttributeEncodingVendor(TypeKind E)
Definition: Dwarf.cpp:293
unsigned FormVendor(Form F)
Definition: Dwarf.cpp:127
unsigned AttributeVendor(Attribute A)
Definition: Dwarf.cpp:94
unsigned OperationVendor(LocationAtom O)
Definition: Dwarf.cpp:252
unsigned TagVendor(Tag T)
Definition: Dwarf.cpp:51
unsigned LanguageVendor(SourceLanguage L)
Definition: Dwarf.cpp:423
unsigned OperationVersion(LocationAtom O)
Definition: Dwarf.cpp:215
unsigned AttributeVersion(Attribute A)
Definition: Dwarf.cpp:83
unsigned LanguageVersion(SourceLanguage L)
Definition: Dwarf.cpp:412
unsigned AttributeEncodingVersion(TypeKind E)
Definition: Dwarf.cpp:282
unsigned TagVersion(Tag T)
Definition: Dwarf.cpp:40
unsigned FormVersion(Form F)
Definition: Dwarf.cpp:116
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
@ DW_INL_not_inlined
Definition: Dwarf.h:748
@ DW_INL_declared_not_inlined
Definition: Dwarf.h:750
@ DW_INL_inlined
Definition: Dwarf.h:749
@ DW_INL_declared_inlined
Definition: Dwarf.h:751
@ DW_ACCESS_private
Definition: Dwarf.h:185
@ DW_ACCESS_protected
Definition: Dwarf.h:184
@ DW_ACCESS_public
Definition: Dwarf.h:183
Attribute
Attributes.
Definition: Dwarf.h:123
std::optional< unsigned > LanguageLowerBound(SourceLanguage L)
Definition: Dwarf.cpp:435
StringRef AtomValueString(uint16_t Atom, unsigned Val)
Returns the symbolic string representing Val when used as a value for atom Atom.
Definition: Dwarf.cpp:749
SourceLanguageName
Definition: Dwarf.h:215
std::optional< unsigned > OperationArity(LocationAtom O)
The arity of the given LocationAtom.
Definition: Dwarf.cpp:239
@ DW_VIS_local
Definition: Dwarf.h:190
@ DW_VIS_exported
Definition: Dwarf.h:191
@ DW_VIS_qualified
Definition: Dwarf.h:192
@ DW_ORD_row_major
Definition: Dwarf.h:756
@ DW_ORD_col_major
Definition: Dwarf.h:757
@ DW_END_lo_user
Definition: Dwarf.h:177
@ DW_END_hi_user
Definition: Dwarf.h:178
LocationAtom
Definition: Dwarf.h:136
@ DW_OP_LLVM_entry_value
Only used in LLVM metadata.
Definition: Dwarf.h:145
@ DW_OP_LLVM_implicit_pointer
Only used in LLVM metadata.
Definition: Dwarf.h:146
@ DW_OP_LLVM_extract_bits_zext
Only used in LLVM metadata.
Definition: Dwarf.h:149
@ DW_OP_LLVM_tag_offset
Only used in LLVM metadata.
Definition: Dwarf.h:144
@ DW_OP_LLVM_fragment
Only used in LLVM metadata.
Definition: Dwarf.h:142
@ DW_OP_LLVM_arg
Only used in LLVM metadata.
Definition: Dwarf.h:147
@ DW_OP_LLVM_convert
Only used in LLVM metadata.
Definition: Dwarf.h:143
@ DW_OP_LLVM_extract_bits_sext
Only used in LLVM metadata.
Definition: Dwarf.h:148
SourceLanguage
Definition: Dwarf.h:207
@ DW_ID_down_case
Definition: Dwarf.h:734
@ DW_ID_case_insensitive
Definition: Dwarf.h:735
@ DW_ID_case_sensitive
Definition: Dwarf.h:732
@ DW_ID_up_case
Definition: Dwarf.h:733
DwarfFormat
Constants that define the DWARF format as 32 or 64 bit.
Definition: Dwarf.h:91
@ DWARF64
Definition: Dwarf.h:91
@ DWARF32
Definition: Dwarf.h:91
bool isValidFormForVersion(Form F, unsigned Version, bool ExtensionsOk=true)
Tells whether the specified form is defined in the specified version, or is an extension if extension...
Definition: Dwarf.cpp:859
@ DW_MACINFO_undef
Definition: Dwarf.h:790
@ DW_MACINFO_start_file
Definition: Dwarf.h:791
@ DW_MACINFO_end_file
Definition: Dwarf.h:792
@ DW_MACINFO_define
Definition: Dwarf.h:789
@ DW_MACINFO_vendor_ext
Definition: Dwarf.h:793
std::optional< uint8_t > getFixedFormByteSize(dwarf::Form Form, FormParams Params)
Get the fixed byte size for a given form.
Definition: Dwarf.cpp:771
GDBIndexEntryKind
Definition: Dwarf.h:943
@ GIEK_NONE
Definition: Dwarf.h:944
@ GIEK_UNUSED7
Definition: Dwarf.h:951
@ GIEK_TYPE
Definition: Dwarf.h:945
@ GIEK_UNUSED6
Definition: Dwarf.h:950
@ GIEK_OTHER
Definition: Dwarf.h:948
@ GIEK_FUNCTION
Definition: Dwarf.h:947
@ GIEK_UNUSED5
Definition: Dwarf.h:949
@ GIEK_VARIABLE
Definition: Dwarf.h:946
@ DW_CHILDREN_no
Definition: Dwarf.h:837
@ DW_CHILDREN_yes
Definition: Dwarf.h:838
StringRef AttributeValueString(uint16_t Attr, unsigned Val)
Returns the symbolic string representing Val when used as a value for attribute Attr.
Definition: Dwarf.cpp:716
std::optional< unsigned > OperationOperands(LocationAtom O)
The number of operands for the given LocationAtom.
Definition: Dwarf.cpp:226
@ DW_DS_leading_separate
Definition: Dwarf.h:169
@ DW_DS_trailing_separate
Definition: Dwarf.h:170
@ DW_DS_trailing_overpunch
Definition: Dwarf.h:168
@ DW_DS_leading_overpunch
Definition: Dwarf.h:167
@ DW_DS_unsigned
Definition: Dwarf.h:166
llvm::StringRef LanguageDescription(SourceLanguageName name)
Definition: Dwarf.cpp:446
@ DW_ATOM_type_flags
Definition: Dwarf.h:916
@ DW_ATOM_null
Definition: Dwarf.h:911
@ DW_ATOM_die_tag
Definition: Dwarf.h:915
@ DW_ATOM_qual_name_hash
Definition: Dwarf.h:919
@ DW_ATOM_die_offset
Marker as the end of a list of atoms.
Definition: Dwarf.h:912
@ DW_ATOM_type_type_flags
Definition: Dwarf.h:918
@ DW_ATOM_cu_offset
Definition: Dwarf.h:913
@ DW_TAG_invalid
LLVM mock tags (see also llvm/BinaryFormat/Dwarf.def).
Definition: Dwarf.h:47
@ DW_MACINFO_invalid
Macinfo type for invalid results.
Definition: Dwarf.h:49
@ DW_VIRTUALITY_invalid
Virtuality for invalid results.
Definition: Dwarf.h:48
@ DWARF_VENDOR_DWARF
Identifiers we use to distinguish vendor extensions.
Definition: Dwarf.h:69
GDBIndexEntryLinkage
Definition: Dwarf.h:954
@ GIEL_EXTERNAL
Definition: Dwarf.h:954
@ GIEL_STATIC
Definition: Dwarf.h:954
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
A helper struct providing information about the byte size of DW_FORM values that vary in size dependi...
Definition: Dwarf.h:1077
uint8_t getDwarfOffsetByteSize() const
The size of a reference is determined by the DWARF 32/64-bit format.
Definition: Dwarf.h:1095
uint8_t getRefAddrByteSize() const
The definition of the size of form DW_FORM_ref_addr depends on the version.
Definition: Dwarf.h:1088