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/Support/ErrorHandling.h"
16 #include "llvm/TargetParser/Triple.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, OPERANDS, ARITY, 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 case DW_OP_LLVM_implicit_pointer:
155 return "DW_OP_LLVM_implicit_pointer";
156 case DW_OP_LLVM_arg:
157 return "DW_OP_LLVM_arg";
158 case DW_OP_LLVM_extract_bits_sext:
159 return "DW_OP_LLVM_extract_bits_sext";
160 case DW_OP_LLVM_extract_bits_zext:
161 return "DW_OP_LLVM_extract_bits_zext";
162 }
163 }
164
getOperationEncoding(StringRef OperationEncodingString)165 unsigned llvm::dwarf::getOperationEncoding(StringRef OperationEncodingString) {
166 return StringSwitch<unsigned>(OperationEncodingString)
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
LlvmUserOperationEncodingString(unsigned Encoding)181 static StringRef LlvmUserOperationEncodingString(unsigned Encoding) {
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
192 static unsigned
getLlvmUserOperationEncoding(StringRef LlvmUserOperationEncodingString)193 getLlvmUserOperationEncoding(StringRef LlvmUserOperationEncodingString) {
194 unsigned E = StringSwitch<unsigned>(LlvmUserOperationEncodingString)
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
SubOperationEncodingString(unsigned OpEncoding,unsigned SubOpEncoding)202 StringRef llvm::dwarf::SubOperationEncodingString(unsigned OpEncoding,
203 unsigned SubOpEncoding) {
204 assert(OpEncoding == DW_OP_LLVM_user);
205 return LlvmUserOperationEncodingString(SubOpEncoding);
206 }
207
208 unsigned
getSubOperationEncoding(unsigned OpEncoding,StringRef SubOperationEncodingString)209 llvm::dwarf::getSubOperationEncoding(unsigned OpEncoding,
210 StringRef SubOperationEncodingString) {
211 assert(OpEncoding == DW_OP_LLVM_user);
212 return getLlvmUserOperationEncoding(SubOperationEncodingString);
213 }
214
OperationVersion(dwarf::LocationAtom Op)215 unsigned llvm::dwarf::OperationVersion(dwarf::LocationAtom Op) {
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
OperationOperands(dwarf::LocationAtom Op)226 std::optional<unsigned> llvm::dwarf::OperationOperands(dwarf::LocationAtom Op) {
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
OperationArity(dwarf::LocationAtom Op)239 std::optional<unsigned> llvm::dwarf::OperationArity(dwarf::LocationAtom Op) {
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
OperationVendor(dwarf::LocationAtom Op)252 unsigned llvm::dwarf::OperationVendor(dwarf::LocationAtom Op) {
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
AttributeEncodingString(unsigned Encoding)263 StringRef llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
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
getAttributeEncoding(StringRef EncodingString)274 unsigned llvm::dwarf::getAttributeEncoding(StringRef EncodingString) {
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
AttributeEncodingVersion(dwarf::TypeKind ATE)282 unsigned llvm::dwarf::AttributeEncodingVersion(dwarf::TypeKind ATE) {
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
AttributeEncodingVendor(dwarf::TypeKind ATE)293 unsigned llvm::dwarf::AttributeEncodingVendor(dwarf::TypeKind ATE) {
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
DecimalSignString(unsigned Sign)304 StringRef llvm::dwarf::DecimalSignString(unsigned Sign) {
305 switch (Sign) {
306 case DW_DS_unsigned:
307 return "DW_DS_unsigned";
308 case DW_DS_leading_overpunch:
309 return "DW_DS_leading_overpunch";
310 case DW_DS_trailing_overpunch:
311 return "DW_DS_trailing_overpunch";
312 case DW_DS_leading_separate:
313 return "DW_DS_leading_separate";
314 case DW_DS_trailing_separate:
315 return "DW_DS_trailing_separate";
316 }
317 return StringRef();
318 }
319
EndianityString(unsigned Endian)320 StringRef llvm::dwarf::EndianityString(unsigned Endian) {
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
AccessibilityString(unsigned Access)336 StringRef llvm::dwarf::AccessibilityString(unsigned Access) {
337 switch (Access) {
338 // Accessibility codes
339 case DW_ACCESS_public:
340 return "DW_ACCESS_public";
341 case DW_ACCESS_protected:
342 return "DW_ACCESS_protected";
343 case DW_ACCESS_private:
344 return "DW_ACCESS_private";
345 }
346 return StringRef();
347 }
348
DefaultedMemberString(unsigned DefaultedEncodings)349 StringRef 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
VisibilityString(unsigned Visibility)362 StringRef llvm::dwarf::VisibilityString(unsigned Visibility) {
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
VirtualityString(unsigned Virtuality)374 StringRef llvm::dwarf::VirtualityString(unsigned Virtuality) {
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
getVirtuality(StringRef VirtualityString)385 unsigned llvm::dwarf::getVirtuality(StringRef VirtualityString) {
386 return StringSwitch<unsigned>(VirtualityString)
387 #define HANDLE_DW_VIRTUALITY(ID, NAME) \
388 .Case("DW_VIRTUALITY_" #NAME, DW_VIRTUALITY_##NAME)
389 #include "llvm/BinaryFormat/Dwarf.def"
390 .Default(DW_VIRTUALITY_invalid);
391 }
392
LanguageString(unsigned Language)393 StringRef llvm::dwarf::LanguageString(unsigned Language) {
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
getLanguage(StringRef LanguageString)404 unsigned llvm::dwarf::getLanguage(StringRef LanguageString) {
405 return StringSwitch<unsigned>(LanguageString)
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
LanguageVersion(dwarf::SourceLanguage Lang)412 unsigned llvm::dwarf::LanguageVersion(dwarf::SourceLanguage Lang) {
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
LanguageVendor(dwarf::SourceLanguage Lang)423 unsigned llvm::dwarf::LanguageVendor(dwarf::SourceLanguage Lang) {
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
434 std::optional<unsigned>
LanguageLowerBound(dwarf::SourceLanguage Lang)435 llvm::dwarf::LanguageLowerBound(dwarf::SourceLanguage Lang) {
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
LanguageDescription(dwarf::SourceLanguageName lname)446 StringRef llvm::dwarf::LanguageDescription(dwarf::SourceLanguageName lname) {
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
CaseString(unsigned Case)456 StringRef llvm::dwarf::CaseString(unsigned Case) {
457 switch (Case) {
458 case DW_ID_case_sensitive:
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";
464 case DW_ID_case_insensitive:
465 return "DW_ID_case_insensitive";
466 }
467 return StringRef();
468 }
469
ConventionString(unsigned CC)470 StringRef llvm::dwarf::ConventionString(unsigned CC) {
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
getCallingConvention(StringRef CCString)481 unsigned llvm::dwarf::getCallingConvention(StringRef CCString) {
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
InlineCodeString(unsigned Code)488 StringRef llvm::dwarf::InlineCodeString(unsigned Code) {
489 switch (Code) {
490 case DW_INL_not_inlined:
491 return "DW_INL_not_inlined";
492 case DW_INL_inlined:
493 return "DW_INL_inlined";
494 case DW_INL_declared_not_inlined:
495 return "DW_INL_declared_not_inlined";
496 case DW_INL_declared_inlined:
497 return "DW_INL_declared_inlined";
498 }
499 return StringRef();
500 }
501
ArrayOrderString(unsigned Order)502 StringRef llvm::dwarf::ArrayOrderString(unsigned Order) {
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
LNStandardString(unsigned Standard)512 StringRef llvm::dwarf::LNStandardString(unsigned Standard) {
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
LNExtendedString(unsigned Encoding)523 StringRef llvm::dwarf::LNExtendedString(unsigned Encoding) {
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
MacinfoString(unsigned Encoding)534 StringRef llvm::dwarf::MacinfoString(unsigned Encoding) {
535 switch (Encoding) {
536 // Macinfo Type Encodings
537 case DW_MACINFO_define:
538 return "DW_MACINFO_define";
539 case DW_MACINFO_undef:
540 return "DW_MACINFO_undef";
541 case DW_MACINFO_start_file:
542 return "DW_MACINFO_start_file";
543 case DW_MACINFO_end_file:
544 return "DW_MACINFO_end_file";
545 case DW_MACINFO_vendor_ext:
546 return "DW_MACINFO_vendor_ext";
547 case DW_MACINFO_invalid:
548 return "DW_MACINFO_invalid";
549 }
550 return StringRef();
551 }
552
getMacinfo(StringRef MacinfoString)553 unsigned llvm::dwarf::getMacinfo(StringRef MacinfoString) {
554 return StringSwitch<unsigned>(MacinfoString)
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)
560 .Default(DW_MACINFO_invalid);
561 }
562
MacroString(unsigned Encoding)563 StringRef llvm::dwarf::MacroString(unsigned Encoding) {
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
GnuMacroString(unsigned Encoding)574 StringRef llvm::dwarf::GnuMacroString(unsigned Encoding) {
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
getMacro(StringRef MacroString)585 unsigned llvm::dwarf::getMacro(StringRef MacroString) {
586 return StringSwitch<unsigned>(MacroString)
587 #define HANDLE_DW_MACRO(ID, NAME) .Case("DW_MACRO_" #NAME, ID)
588 #include "llvm/BinaryFormat/Dwarf.def"
589 .Default(DW_MACINFO_invalid);
590 }
RangeListEncodingString(unsigned Encoding)591 StringRef llvm::dwarf::RangeListEncodingString(unsigned Encoding) {
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
LocListEncodingString(unsigned Encoding)602 StringRef llvm::dwarf::LocListEncodingString(unsigned Encoding) {
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
CallFrameString(unsigned Encoding,Triple::ArchType Arch)613 StringRef llvm::dwarf::CallFrameString(unsigned Encoding,
614 Triple::ArchType Arch) {
615 assert(Arch != llvm::Triple::ArchType::UnknownArch);
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
ApplePropertyString(unsigned Prop)642 StringRef llvm::dwarf::ApplePropertyString(unsigned Prop) {
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
UnitTypeString(unsigned UT)653 StringRef llvm::dwarf::UnitTypeString(unsigned UT) {
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
AtomTypeString(unsigned AT)664 StringRef llvm::dwarf::AtomTypeString(unsigned AT) {
665 switch (AT) {
666 case dwarf::DW_ATOM_null:
667 return "DW_ATOM_null";
668 case dwarf::DW_ATOM_die_offset:
669 return "DW_ATOM_die_offset";
670 case DW_ATOM_cu_offset:
671 return "DW_ATOM_cu_offset";
672 case DW_ATOM_die_tag:
673 return "DW_ATOM_die_tag";
674 case DW_ATOM_type_flags:
675 case DW_ATOM_type_type_flags:
676 return "DW_ATOM_type_flags";
677 case DW_ATOM_qual_name_hash:
678 return "DW_ATOM_qual_name_hash";
679 }
680 return StringRef();
681 }
682
GDBIndexEntryKindString(GDBIndexEntryKind Kind)683 StringRef llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
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
705 StringRef
GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage)706 llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
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
AttributeValueString(uint16_t Attr,unsigned Val)716 StringRef llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
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
AtomValueString(uint16_t Atom,unsigned Val)749 StringRef llvm::dwarf::AtomValueString(uint16_t Atom, unsigned Val) {
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
IndexString(unsigned Idx)760 StringRef llvm::dwarf::IndexString(unsigned Idx) {
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
getFixedFormByteSize(dwarf::Form Form,FormParams Params)771 std::optional<uint8_t> llvm::dwarf::getFixedFormByteSize(dwarf::Form Form,
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
isValidFormForVersion(Form F,unsigned Version,bool ExtensionsOk)859 bool llvm::dwarf::isValidFormForVersion(Form F, unsigned Version,
860 bool ExtensionsOk) {
861 if (FormVendor(F) == DWARF_VENDOR_DWARF) {
862 unsigned FV = FormVersion(F);
863 return FV > 0 && FV <= Version;
864 }
865 return ExtensionsOk;
866 }
867
FormatString(DwarfFormat Format)868 StringRef llvm::dwarf::FormatString(DwarfFormat Format) {
869 switch (Format) {
870 case DWARF32:
871 return "DWARF32";
872 case DWARF64:
873 return "DWARF64";
874 }
875 return StringRef();
876 }
877
FormatString(bool IsDWARF64)878 StringRef llvm::dwarf::FormatString(bool IsDWARF64) {
879 return FormatString(IsDWARF64 ? DWARF64 : DWARF32);
880 }
881
RLEString(unsigned RLE)882 StringRef llvm::dwarf::RLEString(unsigned RLE) {
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
893 constexpr char llvm::dwarf::EnumTraits<Attribute>::Type[];
894 constexpr char llvm::dwarf::EnumTraits<Form>::Type[];
895 constexpr char llvm::dwarf::EnumTraits<Index>::Type[];
896 constexpr char llvm::dwarf::EnumTraits<Tag>::Type[];
897 constexpr char llvm::dwarf::EnumTraits<LineNumberOps>::Type[];
898 constexpr char llvm::dwarf::EnumTraits<LocationAtom>::Type[];
899