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 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 }
159 }
160
getOperationEncoding(StringRef OperationEncodingString)161 unsigned llvm::dwarf::getOperationEncoding(StringRef OperationEncodingString) {
162 return StringSwitch<unsigned>(OperationEncodingString)
163 #define HANDLE_DW_OP(ID, NAME, VERSION, VENDOR) \
164 .Case("DW_OP_" #NAME, DW_OP_##NAME)
165 #include "llvm/BinaryFormat/Dwarf.def"
166 .Case("DW_OP_LLVM_convert", DW_OP_LLVM_convert)
167 .Case("DW_OP_LLVM_fragment", DW_OP_LLVM_fragment)
168 .Case("DW_OP_LLVM_tag_offset", DW_OP_LLVM_tag_offset)
169 .Case("DW_OP_LLVM_entry_value", DW_OP_LLVM_entry_value)
170 .Case("DW_OP_LLVM_implicit_pointer", DW_OP_LLVM_implicit_pointer)
171 .Case("DW_OP_LLVM_arg", DW_OP_LLVM_arg)
172 .Default(0);
173 }
174
OperationVersion(dwarf::LocationAtom Op)175 unsigned llvm::dwarf::OperationVersion(dwarf::LocationAtom Op) {
176 switch (Op) {
177 default:
178 return 0;
179 #define HANDLE_DW_OP(ID, NAME, VERSION, VENDOR) \
180 case DW_OP_##NAME: \
181 return VERSION;
182 #include "llvm/BinaryFormat/Dwarf.def"
183 }
184 }
185
OperationVendor(dwarf::LocationAtom Op)186 unsigned llvm::dwarf::OperationVendor(dwarf::LocationAtom Op) {
187 switch (Op) {
188 default:
189 return 0;
190 #define HANDLE_DW_OP(ID, NAME, VERSION, VENDOR) \
191 case DW_OP_##NAME: \
192 return DWARF_VENDOR_##VENDOR;
193 #include "llvm/BinaryFormat/Dwarf.def"
194 }
195 }
196
AttributeEncodingString(unsigned Encoding)197 StringRef llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
198 switch (Encoding) {
199 default:
200 return StringRef();
201 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
202 case DW_ATE_##NAME: \
203 return "DW_ATE_" #NAME;
204 #include "llvm/BinaryFormat/Dwarf.def"
205 }
206 }
207
getAttributeEncoding(StringRef EncodingString)208 unsigned llvm::dwarf::getAttributeEncoding(StringRef EncodingString) {
209 return StringSwitch<unsigned>(EncodingString)
210 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
211 .Case("DW_ATE_" #NAME, DW_ATE_##NAME)
212 #include "llvm/BinaryFormat/Dwarf.def"
213 .Default(0);
214 }
215
AttributeEncodingVersion(dwarf::TypeKind ATE)216 unsigned llvm::dwarf::AttributeEncodingVersion(dwarf::TypeKind ATE) {
217 switch (ATE) {
218 default:
219 return 0;
220 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
221 case DW_ATE_##NAME: \
222 return VERSION;
223 #include "llvm/BinaryFormat/Dwarf.def"
224 }
225 }
226
AttributeEncodingVendor(dwarf::TypeKind ATE)227 unsigned llvm::dwarf::AttributeEncodingVendor(dwarf::TypeKind ATE) {
228 switch (ATE) {
229 default:
230 return 0;
231 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR) \
232 case DW_ATE_##NAME: \
233 return DWARF_VENDOR_##VENDOR;
234 #include "llvm/BinaryFormat/Dwarf.def"
235 }
236 }
237
DecimalSignString(unsigned Sign)238 StringRef llvm::dwarf::DecimalSignString(unsigned Sign) {
239 switch (Sign) {
240 case DW_DS_unsigned:
241 return "DW_DS_unsigned";
242 case DW_DS_leading_overpunch:
243 return "DW_DS_leading_overpunch";
244 case DW_DS_trailing_overpunch:
245 return "DW_DS_trailing_overpunch";
246 case DW_DS_leading_separate:
247 return "DW_DS_leading_separate";
248 case DW_DS_trailing_separate:
249 return "DW_DS_trailing_separate";
250 }
251 return StringRef();
252 }
253
EndianityString(unsigned Endian)254 StringRef llvm::dwarf::EndianityString(unsigned Endian) {
255 switch (Endian) {
256 case DW_END_default:
257 return "DW_END_default";
258 case DW_END_big:
259 return "DW_END_big";
260 case DW_END_little:
261 return "DW_END_little";
262 case DW_END_lo_user:
263 return "DW_END_lo_user";
264 case DW_END_hi_user:
265 return "DW_END_hi_user";
266 }
267 return StringRef();
268 }
269
AccessibilityString(unsigned Access)270 StringRef llvm::dwarf::AccessibilityString(unsigned Access) {
271 switch (Access) {
272 // Accessibility codes
273 case DW_ACCESS_public:
274 return "DW_ACCESS_public";
275 case DW_ACCESS_protected:
276 return "DW_ACCESS_protected";
277 case DW_ACCESS_private:
278 return "DW_ACCESS_private";
279 }
280 return StringRef();
281 }
282
DefaultedMemberString(unsigned DefaultedEncodings)283 StringRef llvm::dwarf::DefaultedMemberString(unsigned DefaultedEncodings) {
284 switch (DefaultedEncodings) {
285 // Defaulted Member Encodings codes
286 case DW_DEFAULTED_no:
287 return "DW_DEFAULTED_no";
288 case DW_DEFAULTED_in_class:
289 return "DW_DEFAULTED_in_class";
290 case DW_DEFAULTED_out_of_class:
291 return "DW_DEFAULTED_out_of_class";
292 }
293 return StringRef();
294 }
295
VisibilityString(unsigned Visibility)296 StringRef llvm::dwarf::VisibilityString(unsigned Visibility) {
297 switch (Visibility) {
298 case DW_VIS_local:
299 return "DW_VIS_local";
300 case DW_VIS_exported:
301 return "DW_VIS_exported";
302 case DW_VIS_qualified:
303 return "DW_VIS_qualified";
304 }
305 return StringRef();
306 }
307
VirtualityString(unsigned Virtuality)308 StringRef llvm::dwarf::VirtualityString(unsigned Virtuality) {
309 switch (Virtuality) {
310 default:
311 return StringRef();
312 #define HANDLE_DW_VIRTUALITY(ID, NAME) \
313 case DW_VIRTUALITY_##NAME: \
314 return "DW_VIRTUALITY_" #NAME;
315 #include "llvm/BinaryFormat/Dwarf.def"
316 }
317 }
318
getVirtuality(StringRef VirtualityString)319 unsigned llvm::dwarf::getVirtuality(StringRef VirtualityString) {
320 return StringSwitch<unsigned>(VirtualityString)
321 #define HANDLE_DW_VIRTUALITY(ID, NAME) \
322 .Case("DW_VIRTUALITY_" #NAME, DW_VIRTUALITY_##NAME)
323 #include "llvm/BinaryFormat/Dwarf.def"
324 .Default(DW_VIRTUALITY_invalid);
325 }
326
LanguageString(unsigned Language)327 StringRef llvm::dwarf::LanguageString(unsigned Language) {
328 switch (Language) {
329 default:
330 return StringRef();
331 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
332 case DW_LANG_##NAME: \
333 return "DW_LANG_" #NAME;
334 #include "llvm/BinaryFormat/Dwarf.def"
335 }
336 }
337
getLanguage(StringRef LanguageString)338 unsigned llvm::dwarf::getLanguage(StringRef LanguageString) {
339 return StringSwitch<unsigned>(LanguageString)
340 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
341 .Case("DW_LANG_" #NAME, DW_LANG_##NAME)
342 #include "llvm/BinaryFormat/Dwarf.def"
343 .Default(0);
344 }
345
LanguageVersion(dwarf::SourceLanguage Lang)346 unsigned llvm::dwarf::LanguageVersion(dwarf::SourceLanguage Lang) {
347 switch (Lang) {
348 default:
349 return 0;
350 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
351 case DW_LANG_##NAME: \
352 return VERSION;
353 #include "llvm/BinaryFormat/Dwarf.def"
354 }
355 }
356
LanguageVendor(dwarf::SourceLanguage Lang)357 unsigned llvm::dwarf::LanguageVendor(dwarf::SourceLanguage Lang) {
358 switch (Lang) {
359 default:
360 return 0;
361 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
362 case DW_LANG_##NAME: \
363 return DWARF_VENDOR_##VENDOR;
364 #include "llvm/BinaryFormat/Dwarf.def"
365 }
366 }
367
LanguageLowerBound(dwarf::SourceLanguage Lang)368 Optional<unsigned> llvm::dwarf::LanguageLowerBound(dwarf::SourceLanguage Lang) {
369 switch (Lang) {
370 default:
371 return None;
372 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR) \
373 case DW_LANG_##NAME: \
374 return LOWER_BOUND;
375 #include "llvm/BinaryFormat/Dwarf.def"
376 }
377 }
378
CaseString(unsigned Case)379 StringRef llvm::dwarf::CaseString(unsigned Case) {
380 switch (Case) {
381 case DW_ID_case_sensitive:
382 return "DW_ID_case_sensitive";
383 case DW_ID_up_case:
384 return "DW_ID_up_case";
385 case DW_ID_down_case:
386 return "DW_ID_down_case";
387 case DW_ID_case_insensitive:
388 return "DW_ID_case_insensitive";
389 }
390 return StringRef();
391 }
392
ConventionString(unsigned CC)393 StringRef llvm::dwarf::ConventionString(unsigned CC) {
394 switch (CC) {
395 default:
396 return StringRef();
397 #define HANDLE_DW_CC(ID, NAME) \
398 case DW_CC_##NAME: \
399 return "DW_CC_" #NAME;
400 #include "llvm/BinaryFormat/Dwarf.def"
401 }
402 }
403
getCallingConvention(StringRef CCString)404 unsigned llvm::dwarf::getCallingConvention(StringRef CCString) {
405 return StringSwitch<unsigned>(CCString)
406 #define HANDLE_DW_CC(ID, NAME) .Case("DW_CC_" #NAME, DW_CC_##NAME)
407 #include "llvm/BinaryFormat/Dwarf.def"
408 .Default(0);
409 }
410
InlineCodeString(unsigned Code)411 StringRef llvm::dwarf::InlineCodeString(unsigned Code) {
412 switch (Code) {
413 case DW_INL_not_inlined:
414 return "DW_INL_not_inlined";
415 case DW_INL_inlined:
416 return "DW_INL_inlined";
417 case DW_INL_declared_not_inlined:
418 return "DW_INL_declared_not_inlined";
419 case DW_INL_declared_inlined:
420 return "DW_INL_declared_inlined";
421 }
422 return StringRef();
423 }
424
ArrayOrderString(unsigned Order)425 StringRef llvm::dwarf::ArrayOrderString(unsigned Order) {
426 switch (Order) {
427 case DW_ORD_row_major:
428 return "DW_ORD_row_major";
429 case DW_ORD_col_major:
430 return "DW_ORD_col_major";
431 }
432 return StringRef();
433 }
434
LNStandardString(unsigned Standard)435 StringRef llvm::dwarf::LNStandardString(unsigned Standard) {
436 switch (Standard) {
437 default:
438 return StringRef();
439 #define HANDLE_DW_LNS(ID, NAME) \
440 case DW_LNS_##NAME: \
441 return "DW_LNS_" #NAME;
442 #include "llvm/BinaryFormat/Dwarf.def"
443 }
444 }
445
LNExtendedString(unsigned Encoding)446 StringRef llvm::dwarf::LNExtendedString(unsigned Encoding) {
447 switch (Encoding) {
448 default:
449 return StringRef();
450 #define HANDLE_DW_LNE(ID, NAME) \
451 case DW_LNE_##NAME: \
452 return "DW_LNE_" #NAME;
453 #include "llvm/BinaryFormat/Dwarf.def"
454 }
455 }
456
MacinfoString(unsigned Encoding)457 StringRef llvm::dwarf::MacinfoString(unsigned Encoding) {
458 switch (Encoding) {
459 // Macinfo Type Encodings
460 case DW_MACINFO_define:
461 return "DW_MACINFO_define";
462 case DW_MACINFO_undef:
463 return "DW_MACINFO_undef";
464 case DW_MACINFO_start_file:
465 return "DW_MACINFO_start_file";
466 case DW_MACINFO_end_file:
467 return "DW_MACINFO_end_file";
468 case DW_MACINFO_vendor_ext:
469 return "DW_MACINFO_vendor_ext";
470 case DW_MACINFO_invalid:
471 return "DW_MACINFO_invalid";
472 }
473 return StringRef();
474 }
475
getMacinfo(StringRef MacinfoString)476 unsigned llvm::dwarf::getMacinfo(StringRef MacinfoString) {
477 return StringSwitch<unsigned>(MacinfoString)
478 .Case("DW_MACINFO_define", DW_MACINFO_define)
479 .Case("DW_MACINFO_undef", DW_MACINFO_undef)
480 .Case("DW_MACINFO_start_file", DW_MACINFO_start_file)
481 .Case("DW_MACINFO_end_file", DW_MACINFO_end_file)
482 .Case("DW_MACINFO_vendor_ext", DW_MACINFO_vendor_ext)
483 .Default(DW_MACINFO_invalid);
484 }
485
MacroString(unsigned Encoding)486 StringRef llvm::dwarf::MacroString(unsigned Encoding) {
487 switch (Encoding) {
488 default:
489 return StringRef();
490 #define HANDLE_DW_MACRO(ID, NAME) \
491 case DW_MACRO_##NAME: \
492 return "DW_MACRO_" #NAME;
493 #include "llvm/BinaryFormat/Dwarf.def"
494 }
495 }
496
GnuMacroString(unsigned Encoding)497 StringRef llvm::dwarf::GnuMacroString(unsigned Encoding) {
498 switch (Encoding) {
499 default:
500 return StringRef();
501 #define HANDLE_DW_MACRO_GNU(ID, NAME) \
502 case DW_MACRO_GNU_##NAME: \
503 return "DW_MACRO_GNU_" #NAME;
504 #include "llvm/BinaryFormat/Dwarf.def"
505 }
506 }
507
getMacro(StringRef MacroString)508 unsigned llvm::dwarf::getMacro(StringRef MacroString) {
509 return StringSwitch<unsigned>(MacroString)
510 #define HANDLE_DW_MACRO(ID, NAME) .Case("DW_MACRO_" #NAME, ID)
511 #include "llvm/BinaryFormat/Dwarf.def"
512 .Default(DW_MACINFO_invalid);
513 }
RangeListEncodingString(unsigned Encoding)514 StringRef llvm::dwarf::RangeListEncodingString(unsigned Encoding) {
515 switch (Encoding) {
516 default:
517 return StringRef();
518 #define HANDLE_DW_RLE(ID, NAME) \
519 case DW_RLE_##NAME: \
520 return "DW_RLE_" #NAME;
521 #include "llvm/BinaryFormat/Dwarf.def"
522 }
523 }
524
LocListEncodingString(unsigned Encoding)525 StringRef llvm::dwarf::LocListEncodingString(unsigned Encoding) {
526 switch (Encoding) {
527 default:
528 return StringRef();
529 #define HANDLE_DW_LLE(ID, NAME) \
530 case DW_LLE_##NAME: \
531 return "DW_LLE_" #NAME;
532 #include "llvm/BinaryFormat/Dwarf.def"
533 }
534 }
535
CallFrameString(unsigned Encoding,Triple::ArchType Arch)536 StringRef llvm::dwarf::CallFrameString(unsigned Encoding,
537 Triple::ArchType Arch) {
538 assert(Arch != llvm::Triple::ArchType::UnknownArch);
539 #define SELECT_AARCH64 (Arch == llvm::Triple::aarch64_be || Arch == llvm::Triple::aarch64)
540 #define SELECT_MIPS64 Arch == llvm::Triple::mips64
541 #define SELECT_SPARC (Arch == llvm::Triple::sparc || Arch == llvm::Triple::sparcv9)
542 #define SELECT_X86 (Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64)
543 #define HANDLE_DW_CFA(ID, NAME)
544 #define HANDLE_DW_CFA_PRED(ID, NAME, PRED) \
545 if (ID == Encoding && PRED) \
546 return "DW_CFA_" #NAME;
547 #include "llvm/BinaryFormat/Dwarf.def"
548
549 switch (Encoding) {
550 default:
551 return StringRef();
552 #define HANDLE_DW_CFA_PRED(ID, NAME, PRED)
553 #define HANDLE_DW_CFA(ID, NAME) \
554 case DW_CFA_##NAME: \
555 return "DW_CFA_" #NAME;
556 #include "llvm/BinaryFormat/Dwarf.def"
557
558 #undef SELECT_X86
559 #undef SELECT_SPARC
560 #undef SELECT_MIPS64
561 #undef SELECT_AARCH64
562 }
563 }
564
ApplePropertyString(unsigned Prop)565 StringRef llvm::dwarf::ApplePropertyString(unsigned Prop) {
566 switch (Prop) {
567 default:
568 return StringRef();
569 #define HANDLE_DW_APPLE_PROPERTY(ID, NAME) \
570 case DW_APPLE_PROPERTY_##NAME: \
571 return "DW_APPLE_PROPERTY_" #NAME;
572 #include "llvm/BinaryFormat/Dwarf.def"
573 }
574 }
575
UnitTypeString(unsigned UT)576 StringRef llvm::dwarf::UnitTypeString(unsigned UT) {
577 switch (UT) {
578 default:
579 return StringRef();
580 #define HANDLE_DW_UT(ID, NAME) \
581 case DW_UT_##NAME: \
582 return "DW_UT_" #NAME;
583 #include "llvm/BinaryFormat/Dwarf.def"
584 }
585 }
586
AtomTypeString(unsigned AT)587 StringRef llvm::dwarf::AtomTypeString(unsigned AT) {
588 switch (AT) {
589 case dwarf::DW_ATOM_null:
590 return "DW_ATOM_null";
591 case dwarf::DW_ATOM_die_offset:
592 return "DW_ATOM_die_offset";
593 case DW_ATOM_cu_offset:
594 return "DW_ATOM_cu_offset";
595 case DW_ATOM_die_tag:
596 return "DW_ATOM_die_tag";
597 case DW_ATOM_type_flags:
598 case DW_ATOM_type_type_flags:
599 return "DW_ATOM_type_flags";
600 case DW_ATOM_qual_name_hash:
601 return "DW_ATOM_qual_name_hash";
602 }
603 return StringRef();
604 }
605
GDBIndexEntryKindString(GDBIndexEntryKind Kind)606 StringRef llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
607 switch (Kind) {
608 case GIEK_NONE:
609 return "NONE";
610 case GIEK_TYPE:
611 return "TYPE";
612 case GIEK_VARIABLE:
613 return "VARIABLE";
614 case GIEK_FUNCTION:
615 return "FUNCTION";
616 case GIEK_OTHER:
617 return "OTHER";
618 case GIEK_UNUSED5:
619 return "UNUSED5";
620 case GIEK_UNUSED6:
621 return "UNUSED6";
622 case GIEK_UNUSED7:
623 return "UNUSED7";
624 }
625 llvm_unreachable("Unknown GDBIndexEntryKind value");
626 }
627
628 StringRef
GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage)629 llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
630 switch (Linkage) {
631 case GIEL_EXTERNAL:
632 return "EXTERNAL";
633 case GIEL_STATIC:
634 return "STATIC";
635 }
636 llvm_unreachable("Unknown GDBIndexEntryLinkage value");
637 }
638
AttributeValueString(uint16_t Attr,unsigned Val)639 StringRef llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
640 switch (Attr) {
641 case DW_AT_accessibility:
642 return AccessibilityString(Val);
643 case DW_AT_virtuality:
644 return VirtualityString(Val);
645 case DW_AT_language:
646 return LanguageString(Val);
647 case DW_AT_encoding:
648 return AttributeEncodingString(Val);
649 case DW_AT_decimal_sign:
650 return DecimalSignString(Val);
651 case DW_AT_endianity:
652 return EndianityString(Val);
653 case DW_AT_visibility:
654 return VisibilityString(Val);
655 case DW_AT_identifier_case:
656 return CaseString(Val);
657 case DW_AT_calling_convention:
658 return ConventionString(Val);
659 case DW_AT_inline:
660 return InlineCodeString(Val);
661 case DW_AT_ordering:
662 return ArrayOrderString(Val);
663 case DW_AT_APPLE_runtime_class:
664 return LanguageString(Val);
665 case DW_AT_defaulted:
666 return DefaultedMemberString(Val);
667 }
668
669 return StringRef();
670 }
671
AtomValueString(uint16_t Atom,unsigned Val)672 StringRef llvm::dwarf::AtomValueString(uint16_t Atom, unsigned Val) {
673 switch (Atom) {
674 case DW_ATOM_null:
675 return "NULL";
676 case DW_ATOM_die_tag:
677 return TagString(Val);
678 }
679
680 return StringRef();
681 }
682
IndexString(unsigned Idx)683 StringRef llvm::dwarf::IndexString(unsigned Idx) {
684 switch (Idx) {
685 default:
686 return StringRef();
687 #define HANDLE_DW_IDX(ID, NAME) \
688 case DW_IDX_##NAME: \
689 return "DW_IDX_" #NAME;
690 #include "llvm/BinaryFormat/Dwarf.def"
691 }
692 }
693
getFixedFormByteSize(dwarf::Form Form,FormParams Params)694 Optional<uint8_t> llvm::dwarf::getFixedFormByteSize(dwarf::Form Form,
695 FormParams Params) {
696 switch (Form) {
697 case DW_FORM_addr:
698 if (Params)
699 return Params.AddrSize;
700 return None;
701
702 case DW_FORM_block: // ULEB128 length L followed by L bytes.
703 case DW_FORM_block1: // 1 byte length L followed by L bytes.
704 case DW_FORM_block2: // 2 byte length L followed by L bytes.
705 case DW_FORM_block4: // 4 byte length L followed by L bytes.
706 case DW_FORM_string: // C-string with null terminator.
707 case DW_FORM_sdata: // SLEB128.
708 case DW_FORM_udata: // ULEB128.
709 case DW_FORM_ref_udata: // ULEB128.
710 case DW_FORM_indirect: // ULEB128.
711 case DW_FORM_exprloc: // ULEB128 length L followed by L bytes.
712 case DW_FORM_strx: // ULEB128.
713 case DW_FORM_addrx: // ULEB128.
714 case DW_FORM_loclistx: // ULEB128.
715 case DW_FORM_rnglistx: // ULEB128.
716 case DW_FORM_GNU_addr_index: // ULEB128.
717 case DW_FORM_GNU_str_index: // ULEB128.
718 return None;
719
720 case DW_FORM_ref_addr:
721 if (Params)
722 return Params.getRefAddrByteSize();
723 return None;
724
725 case DW_FORM_flag:
726 case DW_FORM_data1:
727 case DW_FORM_ref1:
728 case DW_FORM_strx1:
729 case DW_FORM_addrx1:
730 return 1;
731
732 case DW_FORM_data2:
733 case DW_FORM_ref2:
734 case DW_FORM_strx2:
735 case DW_FORM_addrx2:
736 return 2;
737
738 case DW_FORM_strx3:
739 return 3;
740
741 case DW_FORM_data4:
742 case DW_FORM_ref4:
743 case DW_FORM_ref_sup4:
744 case DW_FORM_strx4:
745 case DW_FORM_addrx4:
746 return 4;
747
748 case DW_FORM_strp:
749 case DW_FORM_GNU_ref_alt:
750 case DW_FORM_GNU_strp_alt:
751 case DW_FORM_line_strp:
752 case DW_FORM_sec_offset:
753 case DW_FORM_strp_sup:
754 if (Params)
755 return Params.getDwarfOffsetByteSize();
756 return None;
757
758 case DW_FORM_data8:
759 case DW_FORM_ref8:
760 case DW_FORM_ref_sig8:
761 case DW_FORM_ref_sup8:
762 return 8;
763
764 case DW_FORM_flag_present:
765 return 0;
766
767 case DW_FORM_data16:
768 return 16;
769
770 case DW_FORM_implicit_const:
771 // The implicit value is stored in the abbreviation as a SLEB128, and
772 // there no data in debug info.
773 return 0;
774
775 default:
776 break;
777 }
778 return None;
779 }
780
isValidFormForVersion(Form F,unsigned Version,bool ExtensionsOk)781 bool llvm::dwarf::isValidFormForVersion(Form F, unsigned Version,
782 bool ExtensionsOk) {
783 if (FormVendor(F) == DWARF_VENDOR_DWARF) {
784 unsigned FV = FormVersion(F);
785 return FV > 0 && FV <= Version;
786 }
787 return ExtensionsOk;
788 }
789
FormatString(DwarfFormat Format)790 StringRef llvm::dwarf::FormatString(DwarfFormat Format) {
791 switch (Format) {
792 case DWARF32:
793 return "DWARF32";
794 case DWARF64:
795 return "DWARF64";
796 }
797 return StringRef();
798 }
799
FormatString(bool IsDWARF64)800 StringRef llvm::dwarf::FormatString(bool IsDWARF64) {
801 return FormatString(IsDWARF64 ? DWARF64 : DWARF32);
802 }
803
RLEString(unsigned RLE)804 StringRef llvm::dwarf::RLEString(unsigned RLE) {
805 switch (RLE) {
806 default:
807 return StringRef();
808 #define HANDLE_DW_RLE(ID, NAME) \
809 case DW_RLE_##NAME: \
810 return "DW_RLE_" #NAME;
811 #include "llvm/BinaryFormat/Dwarf.def"
812 }
813 }
814
815 constexpr char llvm::dwarf::EnumTraits<Attribute>::Type[];
816 constexpr char llvm::dwarf::EnumTraits<Form>::Type[];
817 constexpr char llvm::dwarf::EnumTraits<Index>::Type[];
818 constexpr char llvm::dwarf::EnumTraits<Tag>::Type[];
819 constexpr char llvm::dwarf::EnumTraits<LineNumberOps>::Type[];
820 constexpr char llvm::dwarf::EnumTraits<LocationAtom>::Type[];
821