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
13 #include "llvm/BinaryFormat/Dwarf.h"
14 #include "llvm/ADT/StringSwitch.h"
15 #include "llvm/ADT/Triple.h"
16 #include "llvm/Support/ErrorHandling.h"
17
18 using namespace llvm;
19 using namespace dwarf;
20
TagString(unsigned Tag)21 StringRef llvm::dwarf::TagString(unsigned Tag) {
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
getTag(StringRef TagString)32 unsigned llvm::dwarf::getTag(StringRef TagString) {
33 return StringSwitch<unsigned>(TagString)
34 #define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR, KIND) \
35 .Case("DW_TAG_" #NAME, DW_TAG_##NAME)
36 #include "llvm/BinaryFormat/Dwarf.def"
37 .Default(DW_TAG_invalid);
38 }
39
TagVersion(dwarf::Tag Tag)40 unsigned llvm::dwarf::TagVersion(dwarf::Tag Tag) {
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
TagVendor(dwarf::Tag Tag)51 unsigned llvm::dwarf::TagVendor(dwarf::Tag Tag) {
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
ChildrenString(unsigned Children)62 StringRef llvm::dwarf::ChildrenString(unsigned Children) {
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
AttributeString(unsigned Attribute)72 StringRef llvm::dwarf::AttributeString(unsigned Attribute) {
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
AttributeVersion(dwarf::Attribute Attribute)83 unsigned llvm::dwarf::AttributeVersion(dwarf::Attribute Attribute) {
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
AttributeVendor(dwarf::Attribute Attribute)94 unsigned llvm::dwarf::AttributeVendor(dwarf::Attribute Attribute) {
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
FormEncodingString(unsigned Encoding)105 StringRef llvm::dwarf::FormEncodingString(unsigned Encoding) {
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
FormVersion(dwarf::Form Form)116 unsigned llvm::dwarf::FormVersion(dwarf::Form Form) {
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
FormVendor(dwarf::Form Form)127 unsigned llvm::dwarf::FormVendor(dwarf::Form Form) {
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
OperationEncodingString(unsigned Encoding)138 StringRef llvm::dwarf::OperationEncodingString(unsigned Encoding) {
139 switch (Encoding) {
140 default:
141 return StringRef();
142 #define HANDLE_DW_OP(ID, NAME, VERSION, VENDOR) \
143 case DW_OP_##NAME: \
144 return "DW_OP_" #NAME;
145 #include "llvm/BinaryFormat/Dwarf.def"
146 case DW_OP_LLVM_convert:
147 return "DW_OP_LLVM_convert";
148 case DW_OP_LLVM_fragment:
149 return "DW_OP_LLVM_fragment";
150 case DW_OP_LLVM_tag_offset:
151 return "DW_OP_LLVM_tag_offset";
152 case DW_OP_LLVM_entry_value:
153 return "DW_OP_LLVM_entry_value";
154 }
155 }
156
getOperationEncoding(StringRef OperationEncodingString)157 unsigned llvm::dwarf::getOperationEncoding(StringRef OperationEncodingString) {
158 return StringSwitch<unsigned>(OperationEncodingString)
159 #define HANDLE_DW_OP(ID, NAME, VERSION, VENDOR) \
160 .Case("DW_OP_" #NAME, DW_OP_##NAME)
161 #include "llvm/BinaryFormat/Dwarf.def"
162 .Case("DW_OP_LLVM_convert", DW_OP_LLVM_convert)
163 .Case("DW_OP_LLVM_fragment", DW_OP_LLVM_fragment)
164 .Case("DW_OP_LLVM_tag_offset", DW_OP_LLVM_tag_offset)
165 .Case("DW_OP_LLVM_entry_value", DW_OP_LLVM_entry_value)
166 .Default(0);
167 }
168
OperationVersion(dwarf::LocationAtom Op)169 unsigned llvm::dwarf::OperationVersion(dwarf::LocationAtom Op) {
170 switch (Op) {
171 default:
172 return 0;
173 #define HANDLE_DW_OP(ID, NAME, VERSION, VENDOR) \
174 case DW_OP_##NAME: \
175 return VERSION;
176 #include "llvm/BinaryFormat/Dwarf.def"
177 }
178 }
179
OperationVendor(dwarf::LocationAtom Op)180 unsigned llvm::dwarf::OperationVendor(dwarf::LocationAtom Op) {
181 switch (Op) {
182 default:
183 return 0;
184 #define HANDLE_DW_OP(ID, NAME, VERSION, VENDOR) \
185 case DW_OP_##NAME: \
186 return DWARF_VENDOR_##VENDOR;
187 #include "llvm/BinaryFormat/Dwarf.def"
188 }
189 }
190
AttributeEncodingString(unsigned Encoding)191 StringRef llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
192 switch (Encoding) {
193 default:
194 return StringRef();
195 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
196 case DW_ATE_##NAME: \
197 return "DW_ATE_" #NAME;
198 #include "llvm/BinaryFormat/Dwarf.def"
199 }
200 }
201
getAttributeEncoding(StringRef EncodingString)202 unsigned llvm::dwarf::getAttributeEncoding(StringRef EncodingString) {
203 return StringSwitch<unsigned>(EncodingString)
204 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
205 .Case("DW_ATE_" #NAME, DW_ATE_##NAME)
206 #include "llvm/BinaryFormat/Dwarf.def"
207 .Default(0);
208 }
209
AttributeEncodingVersion(dwarf::TypeKind ATE)210 unsigned llvm::dwarf::AttributeEncodingVersion(dwarf::TypeKind ATE) {
211 switch (ATE) {
212 default:
213 return 0;
214 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
215 case DW_ATE_##NAME: \
216 return VERSION;
217 #include "llvm/BinaryFormat/Dwarf.def"
218 }
219 }
220
AttributeEncodingVendor(dwarf::TypeKind ATE)221 unsigned llvm::dwarf::AttributeEncodingVendor(dwarf::TypeKind ATE) {
222 switch (ATE) {
223 default:
224 return 0;
225 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
226 case DW_ATE_##NAME: \
227 return DWARF_VENDOR_##VENDOR;
228 #include "llvm/BinaryFormat/Dwarf.def"
229 }
230 }
231
DecimalSignString(unsigned Sign)232 StringRef llvm::dwarf::DecimalSignString(unsigned Sign) {
233 switch (Sign) {
234 case DW_DS_unsigned:
235 return "DW_DS_unsigned";
236 case DW_DS_leading_overpunch:
237 return "DW_DS_leading_overpunch";
238 case DW_DS_trailing_overpunch:
239 return "DW_DS_trailing_overpunch";
240 case DW_DS_leading_separate:
241 return "DW_DS_leading_separate";
242 case DW_DS_trailing_separate:
243 return "DW_DS_trailing_separate";
244 }
245 return StringRef();
246 }
247
EndianityString(unsigned Endian)248 StringRef llvm::dwarf::EndianityString(unsigned Endian) {
249 switch (Endian) {
250 case DW_END_default:
251 return "DW_END_default";
252 case DW_END_big:
253 return "DW_END_big";
254 case DW_END_little:
255 return "DW_END_little";
256 case DW_END_lo_user:
257 return "DW_END_lo_user";
258 case DW_END_hi_user:
259 return "DW_END_hi_user";
260 }
261 return StringRef();
262 }
263
AccessibilityString(unsigned Access)264 StringRef llvm::dwarf::AccessibilityString(unsigned Access) {
265 switch (Access) {
266 // Accessibility codes
267 case DW_ACCESS_public:
268 return "DW_ACCESS_public";
269 case DW_ACCESS_protected:
270 return "DW_ACCESS_protected";
271 case DW_ACCESS_private:
272 return "DW_ACCESS_private";
273 }
274 return StringRef();
275 }
276
DefaultedMemberString(unsigned DefaultedEncodings)277 StringRef llvm::dwarf::DefaultedMemberString(unsigned DefaultedEncodings) {
278 switch (DefaultedEncodings) {
279 // Defaulted Member Encodings codes
280 case DW_DEFAULTED_no:
281 return "DW_DEFAULTED_no";
282 case DW_DEFAULTED_in_class:
283 return "DW_DEFAULTED_in_class";
284 case DW_DEFAULTED_out_of_class:
285 return "DW_DEFAULTED_out_of_class";
286 }
287 return StringRef();
288 }
289
VisibilityString(unsigned Visibility)290 StringRef llvm::dwarf::VisibilityString(unsigned Visibility) {
291 switch (Visibility) {
292 case DW_VIS_local:
293 return "DW_VIS_local";
294 case DW_VIS_exported:
295 return "DW_VIS_exported";
296 case DW_VIS_qualified:
297 return "DW_VIS_qualified";
298 }
299 return StringRef();
300 }
301
VirtualityString(unsigned Virtuality)302 StringRef llvm::dwarf::VirtualityString(unsigned Virtuality) {
303 switch (Virtuality) {
304 default:
305 return StringRef();
306 #define HANDLE_DW_VIRTUALITY(ID, NAME) \
307 case DW_VIRTUALITY_##NAME: \
308 return "DW_VIRTUALITY_" #NAME;
309 #include "llvm/BinaryFormat/Dwarf.def"
310 }
311 }
312
getVirtuality(StringRef VirtualityString)313 unsigned llvm::dwarf::getVirtuality(StringRef VirtualityString) {
314 return StringSwitch<unsigned>(VirtualityString)
315 #define HANDLE_DW_VIRTUALITY(ID, NAME) \
316 .Case("DW_VIRTUALITY_" #NAME, DW_VIRTUALITY_##NAME)
317 #include "llvm/BinaryFormat/Dwarf.def"
318 .Default(DW_VIRTUALITY_invalid);
319 }
320
LanguageString(unsigned Language)321 StringRef llvm::dwarf::LanguageString(unsigned Language) {
322 switch (Language) {
323 default:
324 return StringRef();
325 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
326 case DW_LANG_##NAME: \
327 return "DW_LANG_" #NAME;
328 #include "llvm/BinaryFormat/Dwarf.def"
329 }
330 }
331
getLanguage(StringRef LanguageString)332 unsigned llvm::dwarf::getLanguage(StringRef LanguageString) {
333 return StringSwitch<unsigned>(LanguageString)
334 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
335 .Case("DW_LANG_" #NAME, DW_LANG_##NAME)
336 #include "llvm/BinaryFormat/Dwarf.def"
337 .Default(0);
338 }
339
LanguageVersion(dwarf::SourceLanguage Lang)340 unsigned llvm::dwarf::LanguageVersion(dwarf::SourceLanguage Lang) {
341 switch (Lang) {
342 default:
343 return 0;
344 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
345 case DW_LANG_##NAME: \
346 return VERSION;
347 #include "llvm/BinaryFormat/Dwarf.def"
348 }
349 }
350
LanguageVendor(dwarf::SourceLanguage Lang)351 unsigned llvm::dwarf::LanguageVendor(dwarf::SourceLanguage Lang) {
352 switch (Lang) {
353 default:
354 return 0;
355 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
356 case DW_LANG_##NAME: \
357 return DWARF_VENDOR_##VENDOR;
358 #include "llvm/BinaryFormat/Dwarf.def"
359 }
360 }
361
LanguageLowerBound(dwarf::SourceLanguage Lang)362 Optional<unsigned> llvm::dwarf::LanguageLowerBound(dwarf::SourceLanguage Lang) {
363 switch (Lang) {
364 default:
365 return None;
366 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
367 case DW_LANG_##NAME: \
368 return LOWER_BOUND;
369 #include "llvm/BinaryFormat/Dwarf.def"
370 }
371 }
372
CaseString(unsigned Case)373 StringRef llvm::dwarf::CaseString(unsigned Case) {
374 switch (Case) {
375 case DW_ID_case_sensitive:
376 return "DW_ID_case_sensitive";
377 case DW_ID_up_case:
378 return "DW_ID_up_case";
379 case DW_ID_down_case:
380 return "DW_ID_down_case";
381 case DW_ID_case_insensitive:
382 return "DW_ID_case_insensitive";
383 }
384 return StringRef();
385 }
386
ConventionString(unsigned CC)387 StringRef llvm::dwarf::ConventionString(unsigned CC) {
388 switch (CC) {
389 default:
390 return StringRef();
391 #define HANDLE_DW_CC(ID, NAME) \
392 case DW_CC_##NAME: \
393 return "DW_CC_" #NAME;
394 #include "llvm/BinaryFormat/Dwarf.def"
395 }
396 }
397
getCallingConvention(StringRef CCString)398 unsigned llvm::dwarf::getCallingConvention(StringRef CCString) {
399 return StringSwitch<unsigned>(CCString)
400 #define HANDLE_DW_CC(ID, NAME) .Case("DW_CC_" #NAME, DW_CC_##NAME)
401 #include "llvm/BinaryFormat/Dwarf.def"
402 .Default(0);
403 }
404
InlineCodeString(unsigned Code)405 StringRef llvm::dwarf::InlineCodeString(unsigned Code) {
406 switch (Code) {
407 case DW_INL_not_inlined:
408 return "DW_INL_not_inlined";
409 case DW_INL_inlined:
410 return "DW_INL_inlined";
411 case DW_INL_declared_not_inlined:
412 return "DW_INL_declared_not_inlined";
413 case DW_INL_declared_inlined:
414 return "DW_INL_declared_inlined";
415 }
416 return StringRef();
417 }
418
ArrayOrderString(unsigned Order)419 StringRef llvm::dwarf::ArrayOrderString(unsigned Order) {
420 switch (Order) {
421 case DW_ORD_row_major:
422 return "DW_ORD_row_major";
423 case DW_ORD_col_major:
424 return "DW_ORD_col_major";
425 }
426 return StringRef();
427 }
428
LNStandardString(unsigned Standard)429 StringRef llvm::dwarf::LNStandardString(unsigned Standard) {
430 switch (Standard) {
431 default:
432 return StringRef();
433 #define HANDLE_DW_LNS(ID, NAME) \
434 case DW_LNS_##NAME: \
435 return "DW_LNS_" #NAME;
436 #include "llvm/BinaryFormat/Dwarf.def"
437 }
438 }
439
LNExtendedString(unsigned Encoding)440 StringRef llvm::dwarf::LNExtendedString(unsigned Encoding) {
441 switch (Encoding) {
442 default:
443 return StringRef();
444 #define HANDLE_DW_LNE(ID, NAME) \
445 case DW_LNE_##NAME: \
446 return "DW_LNE_" #NAME;
447 #include "llvm/BinaryFormat/Dwarf.def"
448 }
449 }
450
MacinfoString(unsigned Encoding)451 StringRef llvm::dwarf::MacinfoString(unsigned Encoding) {
452 switch (Encoding) {
453 // Macinfo Type Encodings
454 case DW_MACINFO_define:
455 return "DW_MACINFO_define";
456 case DW_MACINFO_undef:
457 return "DW_MACINFO_undef";
458 case DW_MACINFO_start_file:
459 return "DW_MACINFO_start_file";
460 case DW_MACINFO_end_file:
461 return "DW_MACINFO_end_file";
462 case DW_MACINFO_vendor_ext:
463 return "DW_MACINFO_vendor_ext";
464 case DW_MACINFO_invalid:
465 return "DW_MACINFO_invalid";
466 }
467 return StringRef();
468 }
469
getMacinfo(StringRef MacinfoString)470 unsigned llvm::dwarf::getMacinfo(StringRef MacinfoString) {
471 return StringSwitch<unsigned>(MacinfoString)
472 .Case("DW_MACINFO_define", DW_MACINFO_define)
473 .Case("DW_MACINFO_undef", DW_MACINFO_undef)
474 .Case("DW_MACINFO_start_file", DW_MACINFO_start_file)
475 .Case("DW_MACINFO_end_file", DW_MACINFO_end_file)
476 .Case("DW_MACINFO_vendor_ext", DW_MACINFO_vendor_ext)
477 .Default(DW_MACINFO_invalid);
478 }
479
MacroString(unsigned Encoding)480 StringRef llvm::dwarf::MacroString(unsigned Encoding) {
481 switch (Encoding) {
482 default:
483 return StringRef();
484 #define HANDLE_DW_MACRO(ID, NAME) \
485 case DW_MACRO_##NAME: \
486 return "DW_MACRO_" #NAME;
487 #include "llvm/BinaryFormat/Dwarf.def"
488 }
489 }
490
getMacro(StringRef MacroString)491 unsigned llvm::dwarf::getMacro(StringRef MacroString) {
492 return StringSwitch<unsigned>(MacroString)
493 #define HANDLE_DW_MACRO(ID, NAME) .Case("DW_MACRO_" #NAME, ID)
494 #include "llvm/BinaryFormat/Dwarf.def"
495 .Default(DW_MACINFO_invalid);
496 }
RangeListEncodingString(unsigned Encoding)497 StringRef llvm::dwarf::RangeListEncodingString(unsigned Encoding) {
498 switch (Encoding) {
499 default:
500 return StringRef();
501 #define HANDLE_DW_RLE(ID, NAME) \
502 case DW_RLE_##NAME: \
503 return "DW_RLE_" #NAME;
504 #include "llvm/BinaryFormat/Dwarf.def"
505 }
506 }
507
LocListEncodingString(unsigned Encoding)508 StringRef llvm::dwarf::LocListEncodingString(unsigned Encoding) {
509 switch (Encoding) {
510 default:
511 return StringRef();
512 #define HANDLE_DW_LLE(ID, NAME) \
513 case DW_LLE_##NAME: \
514 return "DW_LLE_" #NAME;
515 #include "llvm/BinaryFormat/Dwarf.def"
516 }
517 }
518
CallFrameString(unsigned Encoding,Triple::ArchType Arch)519 StringRef llvm::dwarf::CallFrameString(unsigned Encoding,
520 Triple::ArchType Arch) {
521 assert(Arch != llvm::Triple::ArchType::UnknownArch);
522 #define SELECT_AARCH64 (Arch == llvm::Triple::aarch64_be || Arch == llvm::Triple::aarch64)
523 #define SELECT_MIPS64 Arch == llvm::Triple::mips64
524 #define SELECT_SPARC (Arch == llvm::Triple::sparc || Arch == llvm::Triple::sparcv9)
525 #define SELECT_X86 (Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64)
526 #define HANDLE_DW_CFA(ID, NAME)
527 #define HANDLE_DW_CFA_PRED(ID, NAME, PRED) \
528 if (ID == Encoding && PRED) \
529 return "DW_CFA_" #NAME;
530 #include "llvm/BinaryFormat/Dwarf.def"
531
532 switch (Encoding) {
533 default:
534 return StringRef();
535 #define HANDLE_DW_CFA_PRED(ID, NAME, PRED)
536 #define HANDLE_DW_CFA(ID, NAME) \
537 case DW_CFA_##NAME: \
538 return "DW_CFA_" #NAME;
539 #include "llvm/BinaryFormat/Dwarf.def"
540
541 #undef SELECT_X86
542 #undef SELECT_SPARC
543 #undef SELECT_MIPS64
544 #undef SELECT_AARCH64
545 }
546 }
547
ApplePropertyString(unsigned Prop)548 StringRef llvm::dwarf::ApplePropertyString(unsigned Prop) {
549 switch (Prop) {
550 default:
551 return StringRef();
552 #define HANDLE_DW_APPLE_PROPERTY(ID, NAME) \
553 case DW_APPLE_PROPERTY_##NAME: \
554 return "DW_APPLE_PROPERTY_" #NAME;
555 #include "llvm/BinaryFormat/Dwarf.def"
556 }
557 }
558
UnitTypeString(unsigned UT)559 StringRef llvm::dwarf::UnitTypeString(unsigned UT) {
560 switch (UT) {
561 default:
562 return StringRef();
563 #define HANDLE_DW_UT(ID, NAME) \
564 case DW_UT_##NAME: \
565 return "DW_UT_" #NAME;
566 #include "llvm/BinaryFormat/Dwarf.def"
567 }
568 }
569
AtomTypeString(unsigned AT)570 StringRef llvm::dwarf::AtomTypeString(unsigned AT) {
571 switch (AT) {
572 case dwarf::DW_ATOM_null:
573 return "DW_ATOM_null";
574 case dwarf::DW_ATOM_die_offset:
575 return "DW_ATOM_die_offset";
576 case DW_ATOM_cu_offset:
577 return "DW_ATOM_cu_offset";
578 case DW_ATOM_die_tag:
579 return "DW_ATOM_die_tag";
580 case DW_ATOM_type_flags:
581 case DW_ATOM_type_type_flags:
582 return "DW_ATOM_type_flags";
583 case DW_ATOM_qual_name_hash:
584 return "DW_ATOM_qual_name_hash";
585 }
586 return StringRef();
587 }
588
GDBIndexEntryKindString(GDBIndexEntryKind Kind)589 StringRef llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
590 switch (Kind) {
591 case GIEK_NONE:
592 return "NONE";
593 case GIEK_TYPE:
594 return "TYPE";
595 case GIEK_VARIABLE:
596 return "VARIABLE";
597 case GIEK_FUNCTION:
598 return "FUNCTION";
599 case GIEK_OTHER:
600 return "OTHER";
601 case GIEK_UNUSED5:
602 return "UNUSED5";
603 case GIEK_UNUSED6:
604 return "UNUSED6";
605 case GIEK_UNUSED7:
606 return "UNUSED7";
607 }
608 llvm_unreachable("Unknown GDBIndexEntryKind value");
609 }
610
611 StringRef
GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage)612 llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
613 switch (Linkage) {
614 case GIEL_EXTERNAL:
615 return "EXTERNAL";
616 case GIEL_STATIC:
617 return "STATIC";
618 }
619 llvm_unreachable("Unknown GDBIndexEntryLinkage value");
620 }
621
AttributeValueString(uint16_t Attr,unsigned Val)622 StringRef llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
623 switch (Attr) {
624 case DW_AT_accessibility:
625 return AccessibilityString(Val);
626 case DW_AT_virtuality:
627 return VirtualityString(Val);
628 case DW_AT_language:
629 return LanguageString(Val);
630 case DW_AT_encoding:
631 return AttributeEncodingString(Val);
632 case DW_AT_decimal_sign:
633 return DecimalSignString(Val);
634 case DW_AT_endianity:
635 return EndianityString(Val);
636 case DW_AT_visibility:
637 return VisibilityString(Val);
638 case DW_AT_identifier_case:
639 return CaseString(Val);
640 case DW_AT_calling_convention:
641 return ConventionString(Val);
642 case DW_AT_inline:
643 return InlineCodeString(Val);
644 case DW_AT_ordering:
645 return ArrayOrderString(Val);
646 case DW_AT_APPLE_runtime_class:
647 return LanguageString(Val);
648 case DW_AT_defaulted:
649 return DefaultedMemberString(Val);
650 }
651
652 return StringRef();
653 }
654
AtomValueString(uint16_t Atom,unsigned Val)655 StringRef llvm::dwarf::AtomValueString(uint16_t Atom, unsigned Val) {
656 switch (Atom) {
657 case DW_ATOM_null:
658 return "NULL";
659 case DW_ATOM_die_tag:
660 return TagString(Val);
661 }
662
663 return StringRef();
664 }
665
IndexString(unsigned Idx)666 StringRef llvm::dwarf::IndexString(unsigned Idx) {
667 switch (Idx) {
668 default:
669 return StringRef();
670 #define HANDLE_DW_IDX(ID, NAME) \
671 case DW_IDX_##NAME: \
672 return "DW_IDX_" #NAME;
673 #include "llvm/BinaryFormat/Dwarf.def"
674 }
675 }
676
getFixedFormByteSize(dwarf::Form Form,FormParams Params)677 Optional<uint8_t> llvm::dwarf::getFixedFormByteSize(dwarf::Form Form,
678 FormParams Params) {
679 switch (Form) {
680 case DW_FORM_addr:
681 if (Params)
682 return Params.AddrSize;
683 return None;
684
685 case DW_FORM_block: // ULEB128 length L followed by L bytes.
686 case DW_FORM_block1: // 1 byte length L followed by L bytes.
687 case DW_FORM_block2: // 2 byte length L followed by L bytes.
688 case DW_FORM_block4: // 4 byte length L followed by L bytes.
689 case DW_FORM_string: // C-string with null terminator.
690 case DW_FORM_sdata: // SLEB128.
691 case DW_FORM_udata: // ULEB128.
692 case DW_FORM_ref_udata: // ULEB128.
693 case DW_FORM_indirect: // ULEB128.
694 case DW_FORM_exprloc: // ULEB128 length L followed by L bytes.
695 case DW_FORM_strx: // ULEB128.
696 case DW_FORM_addrx: // ULEB128.
697 case DW_FORM_loclistx: // ULEB128.
698 case DW_FORM_rnglistx: // ULEB128.
699 case DW_FORM_GNU_addr_index: // ULEB128.
700 case DW_FORM_GNU_str_index: // ULEB128.
701 return None;
702
703 case DW_FORM_ref_addr:
704 if (Params)
705 return Params.getRefAddrByteSize();
706 return None;
707
708 case DW_FORM_flag:
709 case DW_FORM_data1:
710 case DW_FORM_ref1:
711 case DW_FORM_strx1:
712 case DW_FORM_addrx1:
713 return 1;
714
715 case DW_FORM_data2:
716 case DW_FORM_ref2:
717 case DW_FORM_strx2:
718 case DW_FORM_addrx2:
719 return 2;
720
721 case DW_FORM_strx3:
722 return 3;
723
724 case DW_FORM_data4:
725 case DW_FORM_ref4:
726 case DW_FORM_ref_sup4:
727 case DW_FORM_strx4:
728 case DW_FORM_addrx4:
729 return 4;
730
731 case DW_FORM_strp:
732 case DW_FORM_GNU_ref_alt:
733 case DW_FORM_GNU_strp_alt:
734 case DW_FORM_line_strp:
735 case DW_FORM_sec_offset:
736 case DW_FORM_strp_sup:
737 if (Params)
738 return Params.getDwarfOffsetByteSize();
739 return None;
740
741 case DW_FORM_data8:
742 case DW_FORM_ref8:
743 case DW_FORM_ref_sig8:
744 case DW_FORM_ref_sup8:
745 return 8;
746
747 case DW_FORM_flag_present:
748 return 0;
749
750 case DW_FORM_data16:
751 return 16;
752
753 case DW_FORM_implicit_const:
754 // The implicit value is stored in the abbreviation as a SLEB128, and
755 // there no data in debug info.
756 return 0;
757
758 default:
759 break;
760 }
761 return None;
762 }
763
isValidFormForVersion(Form F,unsigned Version,bool ExtensionsOk)764 bool llvm::dwarf::isValidFormForVersion(Form F, unsigned Version,
765 bool ExtensionsOk) {
766 if (FormVendor(F) == DWARF_VENDOR_DWARF) {
767 unsigned FV = FormVersion(F);
768 return FV > 0 && FV <= Version;
769 }
770 return ExtensionsOk;
771 }
772
FormatString(DwarfFormat Format)773 StringRef llvm::dwarf::FormatString(DwarfFormat Format) {
774 switch (Format) {
775 case DWARF32:
776 return "DWARF32";
777 case DWARF64:
778 return "DWARF64";
779 }
780 return StringRef();
781 }
782
FormatString(bool IsDWARF64)783 StringRef llvm::dwarf::FormatString(bool IsDWARF64) {
784 return FormatString(IsDWARF64 ? DWARF64 : DWARF32);
785 }
786
787 constexpr char llvm::dwarf::EnumTraits<Attribute>::Type[];
788 constexpr char llvm::dwarf::EnumTraits<Form>::Type[];
789 constexpr char llvm::dwarf::EnumTraits<Index>::Type[];
790 constexpr char llvm::dwarf::EnumTraits<Tag>::Type[];
791 constexpr char llvm::dwarf::EnumTraits<LineNumberOps>::Type[];
792 constexpr char llvm::dwarf::EnumTraits<LocationAtom>::Type[];
793